| File: | build/llvm-toolchain-snapshot-15~++20220420111733+e13d2efed663/clang/lib/AST/ASTContext.cpp |
| Warning: | line 3060, column 12 1st function call argument is an uninitialized value |
Press '?' to see keyboard shortcuts
Keyboard shortcuts:
| 1 | //===- ASTContext.cpp - Context to hold long-lived AST nodes --------------===// | |||
| 2 | // | |||
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. | |||
| 4 | // See https://llvm.org/LICENSE.txt for license information. | |||
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception | |||
| 6 | // | |||
| 7 | //===----------------------------------------------------------------------===// | |||
| 8 | // | |||
| 9 | // This file implements the ASTContext interface. | |||
| 10 | // | |||
| 11 | //===----------------------------------------------------------------------===// | |||
| 12 | ||||
| 13 | #include "clang/AST/ASTContext.h" | |||
| 14 | #include "CXXABI.h" | |||
| 15 | #include "Interp/Context.h" | |||
| 16 | #include "clang/AST/APValue.h" | |||
| 17 | #include "clang/AST/ASTConcept.h" | |||
| 18 | #include "clang/AST/ASTMutationListener.h" | |||
| 19 | #include "clang/AST/ASTTypeTraits.h" | |||
| 20 | #include "clang/AST/Attr.h" | |||
| 21 | #include "clang/AST/AttrIterator.h" | |||
| 22 | #include "clang/AST/CharUnits.h" | |||
| 23 | #include "clang/AST/Comment.h" | |||
| 24 | #include "clang/AST/Decl.h" | |||
| 25 | #include "clang/AST/DeclBase.h" | |||
| 26 | #include "clang/AST/DeclCXX.h" | |||
| 27 | #include "clang/AST/DeclContextInternals.h" | |||
| 28 | #include "clang/AST/DeclObjC.h" | |||
| 29 | #include "clang/AST/DeclOpenMP.h" | |||
| 30 | #include "clang/AST/DeclTemplate.h" | |||
| 31 | #include "clang/AST/DeclarationName.h" | |||
| 32 | #include "clang/AST/DependenceFlags.h" | |||
| 33 | #include "clang/AST/Expr.h" | |||
| 34 | #include "clang/AST/ExprCXX.h" | |||
| 35 | #include "clang/AST/ExprConcepts.h" | |||
| 36 | #include "clang/AST/ExternalASTSource.h" | |||
| 37 | #include "clang/AST/Mangle.h" | |||
| 38 | #include "clang/AST/MangleNumberingContext.h" | |||
| 39 | #include "clang/AST/NestedNameSpecifier.h" | |||
| 40 | #include "clang/AST/ParentMapContext.h" | |||
| 41 | #include "clang/AST/RawCommentList.h" | |||
| 42 | #include "clang/AST/RecordLayout.h" | |||
| 43 | #include "clang/AST/Stmt.h" | |||
| 44 | #include "clang/AST/TemplateBase.h" | |||
| 45 | #include "clang/AST/TemplateName.h" | |||
| 46 | #include "clang/AST/Type.h" | |||
| 47 | #include "clang/AST/TypeLoc.h" | |||
| 48 | #include "clang/AST/UnresolvedSet.h" | |||
| 49 | #include "clang/AST/VTableBuilder.h" | |||
| 50 | #include "clang/Basic/AddressSpaces.h" | |||
| 51 | #include "clang/Basic/Builtins.h" | |||
| 52 | #include "clang/Basic/CommentOptions.h" | |||
| 53 | #include "clang/Basic/ExceptionSpecificationType.h" | |||
| 54 | #include "clang/Basic/IdentifierTable.h" | |||
| 55 | #include "clang/Basic/LLVM.h" | |||
| 56 | #include "clang/Basic/LangOptions.h" | |||
| 57 | #include "clang/Basic/Linkage.h" | |||
| 58 | #include "clang/Basic/Module.h" | |||
| 59 | #include "clang/Basic/NoSanitizeList.h" | |||
| 60 | #include "clang/Basic/ObjCRuntime.h" | |||
| 61 | #include "clang/Basic/SourceLocation.h" | |||
| 62 | #include "clang/Basic/SourceManager.h" | |||
| 63 | #include "clang/Basic/Specifiers.h" | |||
| 64 | #include "clang/Basic/TargetCXXABI.h" | |||
| 65 | #include "clang/Basic/TargetInfo.h" | |||
| 66 | #include "clang/Basic/XRayLists.h" | |||
| 67 | #include "llvm/ADT/APFixedPoint.h" | |||
| 68 | #include "llvm/ADT/APInt.h" | |||
| 69 | #include "llvm/ADT/APSInt.h" | |||
| 70 | #include "llvm/ADT/ArrayRef.h" | |||
| 71 | #include "llvm/ADT/DenseMap.h" | |||
| 72 | #include "llvm/ADT/DenseSet.h" | |||
| 73 | #include "llvm/ADT/FoldingSet.h" | |||
| 74 | #include "llvm/ADT/None.h" | |||
| 75 | #include "llvm/ADT/Optional.h" | |||
| 76 | #include "llvm/ADT/PointerUnion.h" | |||
| 77 | #include "llvm/ADT/STLExtras.h" | |||
| 78 | #include "llvm/ADT/SmallPtrSet.h" | |||
| 79 | #include "llvm/ADT/SmallVector.h" | |||
| 80 | #include "llvm/ADT/StringExtras.h" | |||
| 81 | #include "llvm/ADT/StringRef.h" | |||
| 82 | #include "llvm/ADT/Triple.h" | |||
| 83 | #include "llvm/Support/Capacity.h" | |||
| 84 | #include "llvm/Support/Casting.h" | |||
| 85 | #include "llvm/Support/Compiler.h" | |||
| 86 | #include "llvm/Support/ErrorHandling.h" | |||
| 87 | #include "llvm/Support/MD5.h" | |||
| 88 | #include "llvm/Support/MathExtras.h" | |||
| 89 | #include "llvm/Support/raw_ostream.h" | |||
| 90 | #include <algorithm> | |||
| 91 | #include <cassert> | |||
| 92 | #include <cstddef> | |||
| 93 | #include <cstdint> | |||
| 94 | #include <cstdlib> | |||
| 95 | #include <map> | |||
| 96 | #include <memory> | |||
| 97 | #include <string> | |||
| 98 | #include <tuple> | |||
| 99 | #include <utility> | |||
| 100 | ||||
| 101 | using namespace clang; | |||
| 102 | ||||
| 103 | enum FloatingRank { | |||
| 104 | BFloat16Rank, | |||
| 105 | Float16Rank, | |||
| 106 | HalfRank, | |||
| 107 | FloatRank, | |||
| 108 | DoubleRank, | |||
| 109 | LongDoubleRank, | |||
| 110 | Float128Rank, | |||
| 111 | Ibm128Rank | |||
| 112 | }; | |||
| 113 | ||||
| 114 | /// \returns location that is relevant when searching for Doc comments related | |||
| 115 | /// to \p D. | |||
| 116 | static SourceLocation getDeclLocForCommentSearch(const Decl *D, | |||
| 117 | SourceManager &SourceMgr) { | |||
| 118 | assert(D)(static_cast <bool> (D) ? void (0) : __assert_fail ("D" , "clang/lib/AST/ASTContext.cpp", 118, __extension__ __PRETTY_FUNCTION__ )); | |||
| 119 | ||||
| 120 | // User can not attach documentation to implicit declarations. | |||
| 121 | if (D->isImplicit()) | |||
| 122 | return {}; | |||
| 123 | ||||
| 124 | // User can not attach documentation to implicit instantiations. | |||
| 125 | if (const auto *FD = dyn_cast<FunctionDecl>(D)) { | |||
| 126 | if (FD->getTemplateSpecializationKind() == TSK_ImplicitInstantiation) | |||
| 127 | return {}; | |||
| 128 | } | |||
| 129 | ||||
| 130 | if (const auto *VD = dyn_cast<VarDecl>(D)) { | |||
| 131 | if (VD->isStaticDataMember() && | |||
| 132 | VD->getTemplateSpecializationKind() == TSK_ImplicitInstantiation) | |||
| 133 | return {}; | |||
| 134 | } | |||
| 135 | ||||
| 136 | if (const auto *CRD = dyn_cast<CXXRecordDecl>(D)) { | |||
| 137 | if (CRD->getTemplateSpecializationKind() == TSK_ImplicitInstantiation) | |||
| 138 | return {}; | |||
| 139 | } | |||
| 140 | ||||
| 141 | if (const auto *CTSD = dyn_cast<ClassTemplateSpecializationDecl>(D)) { | |||
| 142 | TemplateSpecializationKind TSK = CTSD->getSpecializationKind(); | |||
| 143 | if (TSK == TSK_ImplicitInstantiation || | |||
| 144 | TSK == TSK_Undeclared) | |||
| 145 | return {}; | |||
| 146 | } | |||
| 147 | ||||
| 148 | if (const auto *ED = dyn_cast<EnumDecl>(D)) { | |||
| 149 | if (ED->getTemplateSpecializationKind() == TSK_ImplicitInstantiation) | |||
| 150 | return {}; | |||
| 151 | } | |||
| 152 | if (const auto *TD = dyn_cast<TagDecl>(D)) { | |||
| 153 | // When tag declaration (but not definition!) is part of the | |||
| 154 | // decl-specifier-seq of some other declaration, it doesn't get comment | |||
| 155 | if (TD->isEmbeddedInDeclarator() && !TD->isCompleteDefinition()) | |||
| 156 | return {}; | |||
| 157 | } | |||
| 158 | // TODO: handle comments for function parameters properly. | |||
| 159 | if (isa<ParmVarDecl>(D)) | |||
| 160 | return {}; | |||
| 161 | ||||
| 162 | // TODO: we could look up template parameter documentation in the template | |||
| 163 | // documentation. | |||
| 164 | if (isa<TemplateTypeParmDecl>(D) || | |||
| 165 | isa<NonTypeTemplateParmDecl>(D) || | |||
| 166 | isa<TemplateTemplateParmDecl>(D)) | |||
| 167 | return {}; | |||
| 168 | ||||
| 169 | // Find declaration location. | |||
| 170 | // For Objective-C declarations we generally don't expect to have multiple | |||
| 171 | // declarators, thus use declaration starting location as the "declaration | |||
| 172 | // location". | |||
| 173 | // For all other declarations multiple declarators are used quite frequently, | |||
| 174 | // so we use the location of the identifier as the "declaration location". | |||
| 175 | if (isa<ObjCMethodDecl>(D) || isa<ObjCContainerDecl>(D) || | |||
| 176 | isa<ObjCPropertyDecl>(D) || | |||
| 177 | isa<RedeclarableTemplateDecl>(D) || | |||
| 178 | isa<ClassTemplateSpecializationDecl>(D) || | |||
| 179 | // Allow association with Y across {} in `typedef struct X {} Y`. | |||
| 180 | isa<TypedefDecl>(D)) | |||
| 181 | return D->getBeginLoc(); | |||
| 182 | ||||
| 183 | const SourceLocation DeclLoc = D->getLocation(); | |||
| 184 | if (DeclLoc.isMacroID()) { | |||
| 185 | if (isa<TypedefDecl>(D)) { | |||
| 186 | // If location of the typedef name is in a macro, it is because being | |||
| 187 | // declared via a macro. Try using declaration's starting location as | |||
| 188 | // the "declaration location". | |||
| 189 | return D->getBeginLoc(); | |||
| 190 | } | |||
| 191 | ||||
| 192 | if (const auto *TD = dyn_cast<TagDecl>(D)) { | |||
| 193 | // If location of the tag decl is inside a macro, but the spelling of | |||
| 194 | // the tag name comes from a macro argument, it looks like a special | |||
| 195 | // macro like NS_ENUM is being used to define the tag decl. In that | |||
| 196 | // case, adjust the source location to the expansion loc so that we can | |||
| 197 | // attach the comment to the tag decl. | |||
| 198 | if (SourceMgr.isMacroArgExpansion(DeclLoc) && TD->isCompleteDefinition()) | |||
| 199 | return SourceMgr.getExpansionLoc(DeclLoc); | |||
| 200 | } | |||
| 201 | } | |||
| 202 | ||||
| 203 | return DeclLoc; | |||
| 204 | } | |||
| 205 | ||||
| 206 | RawComment *ASTContext::getRawCommentForDeclNoCacheImpl( | |||
| 207 | const Decl *D, const SourceLocation RepresentativeLocForDecl, | |||
| 208 | const std::map<unsigned, RawComment *> &CommentsInTheFile) const { | |||
| 209 | // If the declaration doesn't map directly to a location in a file, we | |||
| 210 | // can't find the comment. | |||
| 211 | if (RepresentativeLocForDecl.isInvalid() || | |||
| 212 | !RepresentativeLocForDecl.isFileID()) | |||
| 213 | return nullptr; | |||
| 214 | ||||
| 215 | // If there are no comments anywhere, we won't find anything. | |||
| 216 | if (CommentsInTheFile.empty()) | |||
| 217 | return nullptr; | |||
| 218 | ||||
| 219 | // Decompose the location for the declaration and find the beginning of the | |||
| 220 | // file buffer. | |||
| 221 | const std::pair<FileID, unsigned> DeclLocDecomp = | |||
| 222 | SourceMgr.getDecomposedLoc(RepresentativeLocForDecl); | |||
| 223 | ||||
| 224 | // Slow path. | |||
| 225 | auto OffsetCommentBehindDecl = | |||
| 226 | CommentsInTheFile.lower_bound(DeclLocDecomp.second); | |||
| 227 | ||||
| 228 | // First check whether we have a trailing comment. | |||
| 229 | if (OffsetCommentBehindDecl != CommentsInTheFile.end()) { | |||
| 230 | RawComment *CommentBehindDecl = OffsetCommentBehindDecl->second; | |||
| 231 | if ((CommentBehindDecl->isDocumentation() || | |||
| 232 | LangOpts.CommentOpts.ParseAllComments) && | |||
| 233 | CommentBehindDecl->isTrailingComment() && | |||
| 234 | (isa<FieldDecl>(D) || isa<EnumConstantDecl>(D) || isa<VarDecl>(D) || | |||
| 235 | isa<ObjCMethodDecl>(D) || isa<ObjCPropertyDecl>(D))) { | |||
| 236 | ||||
| 237 | // Check that Doxygen trailing comment comes after the declaration, starts | |||
| 238 | // on the same line and in the same file as the declaration. | |||
| 239 | if (SourceMgr.getLineNumber(DeclLocDecomp.first, DeclLocDecomp.second) == | |||
| 240 | Comments.getCommentBeginLine(CommentBehindDecl, DeclLocDecomp.first, | |||
| 241 | OffsetCommentBehindDecl->first)) { | |||
| 242 | return CommentBehindDecl; | |||
| 243 | } | |||
| 244 | } | |||
| 245 | } | |||
| 246 | ||||
| 247 | // The comment just after the declaration was not a trailing comment. | |||
| 248 | // Let's look at the previous comment. | |||
| 249 | if (OffsetCommentBehindDecl == CommentsInTheFile.begin()) | |||
| 250 | return nullptr; | |||
| 251 | ||||
| 252 | auto OffsetCommentBeforeDecl = --OffsetCommentBehindDecl; | |||
| 253 | RawComment *CommentBeforeDecl = OffsetCommentBeforeDecl->second; | |||
| 254 | ||||
| 255 | // Check that we actually have a non-member Doxygen comment. | |||
| 256 | if (!(CommentBeforeDecl->isDocumentation() || | |||
| 257 | LangOpts.CommentOpts.ParseAllComments) || | |||
| 258 | CommentBeforeDecl->isTrailingComment()) | |||
| 259 | return nullptr; | |||
| 260 | ||||
| 261 | // Decompose the end of the comment. | |||
| 262 | const unsigned CommentEndOffset = | |||
| 263 | Comments.getCommentEndOffset(CommentBeforeDecl); | |||
| 264 | ||||
| 265 | // Get the corresponding buffer. | |||
| 266 | bool Invalid = false; | |||
| 267 | const char *Buffer = SourceMgr.getBufferData(DeclLocDecomp.first, | |||
| 268 | &Invalid).data(); | |||
| 269 | if (Invalid) | |||
| 270 | return nullptr; | |||
| 271 | ||||
| 272 | // Extract text between the comment and declaration. | |||
| 273 | StringRef Text(Buffer + CommentEndOffset, | |||
| 274 | DeclLocDecomp.second - CommentEndOffset); | |||
| 275 | ||||
| 276 | // There should be no other declarations or preprocessor directives between | |||
| 277 | // comment and declaration. | |||
| 278 | if (Text.find_first_of(";{}#@") != StringRef::npos) | |||
| 279 | return nullptr; | |||
| 280 | ||||
| 281 | return CommentBeforeDecl; | |||
| 282 | } | |||
| 283 | ||||
| 284 | RawComment *ASTContext::getRawCommentForDeclNoCache(const Decl *D) const { | |||
| 285 | const SourceLocation DeclLoc = getDeclLocForCommentSearch(D, SourceMgr); | |||
| 286 | ||||
| 287 | // If the declaration doesn't map directly to a location in a file, we | |||
| 288 | // can't find the comment. | |||
| 289 | if (DeclLoc.isInvalid() || !DeclLoc.isFileID()) | |||
| 290 | return nullptr; | |||
| 291 | ||||
| 292 | if (ExternalSource && !CommentsLoaded) { | |||
| 293 | ExternalSource->ReadComments(); | |||
| 294 | CommentsLoaded = true; | |||
| 295 | } | |||
| 296 | ||||
| 297 | if (Comments.empty()) | |||
| 298 | return nullptr; | |||
| 299 | ||||
| 300 | const FileID File = SourceMgr.getDecomposedLoc(DeclLoc).first; | |||
| 301 | const auto CommentsInThisFile = Comments.getCommentsInFile(File); | |||
| 302 | if (!CommentsInThisFile || CommentsInThisFile->empty()) | |||
| 303 | return nullptr; | |||
| 304 | ||||
| 305 | return getRawCommentForDeclNoCacheImpl(D, DeclLoc, *CommentsInThisFile); | |||
| 306 | } | |||
| 307 | ||||
| 308 | void ASTContext::addComment(const RawComment &RC) { | |||
| 309 | assert(LangOpts.RetainCommentsFromSystemHeaders ||(static_cast <bool> (LangOpts.RetainCommentsFromSystemHeaders || !SourceMgr.isInSystemHeader(RC.getSourceRange().getBegin( ))) ? void (0) : __assert_fail ("LangOpts.RetainCommentsFromSystemHeaders || !SourceMgr.isInSystemHeader(RC.getSourceRange().getBegin())" , "clang/lib/AST/ASTContext.cpp", 310, __extension__ __PRETTY_FUNCTION__ )) | |||
| 310 | !SourceMgr.isInSystemHeader(RC.getSourceRange().getBegin()))(static_cast <bool> (LangOpts.RetainCommentsFromSystemHeaders || !SourceMgr.isInSystemHeader(RC.getSourceRange().getBegin( ))) ? void (0) : __assert_fail ("LangOpts.RetainCommentsFromSystemHeaders || !SourceMgr.isInSystemHeader(RC.getSourceRange().getBegin())" , "clang/lib/AST/ASTContext.cpp", 310, __extension__ __PRETTY_FUNCTION__ )); | |||
| 311 | Comments.addComment(RC, LangOpts.CommentOpts, BumpAlloc); | |||
| 312 | } | |||
| 313 | ||||
| 314 | /// If we have a 'templated' declaration for a template, adjust 'D' to | |||
| 315 | /// refer to the actual template. | |||
| 316 | /// If we have an implicit instantiation, adjust 'D' to refer to template. | |||
| 317 | static const Decl &adjustDeclToTemplate(const Decl &D) { | |||
| 318 | if (const auto *FD = dyn_cast<FunctionDecl>(&D)) { | |||
| 319 | // Is this function declaration part of a function template? | |||
| 320 | if (const FunctionTemplateDecl *FTD = FD->getDescribedFunctionTemplate()) | |||
| 321 | return *FTD; | |||
| 322 | ||||
| 323 | // Nothing to do if function is not an implicit instantiation. | |||
| 324 | if (FD->getTemplateSpecializationKind() != TSK_ImplicitInstantiation) | |||
| 325 | return D; | |||
| 326 | ||||
| 327 | // Function is an implicit instantiation of a function template? | |||
| 328 | if (const FunctionTemplateDecl *FTD = FD->getPrimaryTemplate()) | |||
| 329 | return *FTD; | |||
| 330 | ||||
| 331 | // Function is instantiated from a member definition of a class template? | |||
| 332 | if (const FunctionDecl *MemberDecl = | |||
| 333 | FD->getInstantiatedFromMemberFunction()) | |||
| 334 | return *MemberDecl; | |||
| 335 | ||||
| 336 | return D; | |||
| 337 | } | |||
| 338 | if (const auto *VD = dyn_cast<VarDecl>(&D)) { | |||
| 339 | // Static data member is instantiated from a member definition of a class | |||
| 340 | // template? | |||
| 341 | if (VD->isStaticDataMember()) | |||
| 342 | if (const VarDecl *MemberDecl = VD->getInstantiatedFromStaticDataMember()) | |||
| 343 | return *MemberDecl; | |||
| 344 | ||||
| 345 | return D; | |||
| 346 | } | |||
| 347 | if (const auto *CRD = dyn_cast<CXXRecordDecl>(&D)) { | |||
| 348 | // Is this class declaration part of a class template? | |||
| 349 | if (const ClassTemplateDecl *CTD = CRD->getDescribedClassTemplate()) | |||
| 350 | return *CTD; | |||
| 351 | ||||
| 352 | // Class is an implicit instantiation of a class template or partial | |||
| 353 | // specialization? | |||
| 354 | if (const auto *CTSD = dyn_cast<ClassTemplateSpecializationDecl>(CRD)) { | |||
| 355 | if (CTSD->getSpecializationKind() != TSK_ImplicitInstantiation) | |||
| 356 | return D; | |||
| 357 | llvm::PointerUnion<ClassTemplateDecl *, | |||
| 358 | ClassTemplatePartialSpecializationDecl *> | |||
| 359 | PU = CTSD->getSpecializedTemplateOrPartial(); | |||
| 360 | return PU.is<ClassTemplateDecl *>() | |||
| 361 | ? *static_cast<const Decl *>(PU.get<ClassTemplateDecl *>()) | |||
| 362 | : *static_cast<const Decl *>( | |||
| 363 | PU.get<ClassTemplatePartialSpecializationDecl *>()); | |||
| 364 | } | |||
| 365 | ||||
| 366 | // Class is instantiated from a member definition of a class template? | |||
| 367 | if (const MemberSpecializationInfo *Info = | |||
| 368 | CRD->getMemberSpecializationInfo()) | |||
| 369 | return *Info->getInstantiatedFrom(); | |||
| 370 | ||||
| 371 | return D; | |||
| 372 | } | |||
| 373 | if (const auto *ED = dyn_cast<EnumDecl>(&D)) { | |||
| 374 | // Enum is instantiated from a member definition of a class template? | |||
| 375 | if (const EnumDecl *MemberDecl = ED->getInstantiatedFromMemberEnum()) | |||
| 376 | return *MemberDecl; | |||
| 377 | ||||
| 378 | return D; | |||
| 379 | } | |||
| 380 | // FIXME: Adjust alias templates? | |||
| 381 | return D; | |||
| 382 | } | |||
| 383 | ||||
| 384 | const RawComment *ASTContext::getRawCommentForAnyRedecl( | |||
| 385 | const Decl *D, | |||
| 386 | const Decl **OriginalDecl) const { | |||
| 387 | if (!D) { | |||
| 388 | if (OriginalDecl) | |||
| 389 | OriginalDecl = nullptr; | |||
| 390 | return nullptr; | |||
| 391 | } | |||
| 392 | ||||
| 393 | D = &adjustDeclToTemplate(*D); | |||
| 394 | ||||
| 395 | // Any comment directly attached to D? | |||
| 396 | { | |||
| 397 | auto DeclComment = DeclRawComments.find(D); | |||
| 398 | if (DeclComment != DeclRawComments.end()) { | |||
| 399 | if (OriginalDecl) | |||
| 400 | *OriginalDecl = D; | |||
| 401 | return DeclComment->second; | |||
| 402 | } | |||
| 403 | } | |||
| 404 | ||||
| 405 | // Any comment attached to any redeclaration of D? | |||
| 406 | const Decl *CanonicalD = D->getCanonicalDecl(); | |||
| 407 | if (!CanonicalD) | |||
| 408 | return nullptr; | |||
| 409 | ||||
| 410 | { | |||
| 411 | auto RedeclComment = RedeclChainComments.find(CanonicalD); | |||
| 412 | if (RedeclComment != RedeclChainComments.end()) { | |||
| 413 | if (OriginalDecl) | |||
| 414 | *OriginalDecl = RedeclComment->second; | |||
| 415 | auto CommentAtRedecl = DeclRawComments.find(RedeclComment->second); | |||
| 416 | assert(CommentAtRedecl != DeclRawComments.end() &&(static_cast <bool> (CommentAtRedecl != DeclRawComments .end() && "This decl is supposed to have comment attached." ) ? void (0) : __assert_fail ("CommentAtRedecl != DeclRawComments.end() && \"This decl is supposed to have comment attached.\"" , "clang/lib/AST/ASTContext.cpp", 417, __extension__ __PRETTY_FUNCTION__ )) | |||
| 417 | "This decl is supposed to have comment attached.")(static_cast <bool> (CommentAtRedecl != DeclRawComments .end() && "This decl is supposed to have comment attached." ) ? void (0) : __assert_fail ("CommentAtRedecl != DeclRawComments.end() && \"This decl is supposed to have comment attached.\"" , "clang/lib/AST/ASTContext.cpp", 417, __extension__ __PRETTY_FUNCTION__ )); | |||
| 418 | return CommentAtRedecl->second; | |||
| 419 | } | |||
| 420 | } | |||
| 421 | ||||
| 422 | // Any redeclarations of D that we haven't checked for comments yet? | |||
| 423 | // We can't use DenseMap::iterator directly since it'd get invalid. | |||
| 424 | auto LastCheckedRedecl = [this, CanonicalD]() -> const Decl * { | |||
| 425 | auto LookupRes = CommentlessRedeclChains.find(CanonicalD); | |||
| 426 | if (LookupRes != CommentlessRedeclChains.end()) | |||
| 427 | return LookupRes->second; | |||
| 428 | return nullptr; | |||
| 429 | }(); | |||
| 430 | ||||
| 431 | for (const auto Redecl : D->redecls()) { | |||
| 432 | assert(Redecl)(static_cast <bool> (Redecl) ? void (0) : __assert_fail ("Redecl", "clang/lib/AST/ASTContext.cpp", 432, __extension__ __PRETTY_FUNCTION__)); | |||
| 433 | // Skip all redeclarations that have been checked previously. | |||
| 434 | if (LastCheckedRedecl) { | |||
| 435 | if (LastCheckedRedecl == Redecl) { | |||
| 436 | LastCheckedRedecl = nullptr; | |||
| 437 | } | |||
| 438 | continue; | |||
| 439 | } | |||
| 440 | const RawComment *RedeclComment = getRawCommentForDeclNoCache(Redecl); | |||
| 441 | if (RedeclComment) { | |||
| 442 | cacheRawCommentForDecl(*Redecl, *RedeclComment); | |||
| 443 | if (OriginalDecl) | |||
| 444 | *OriginalDecl = Redecl; | |||
| 445 | return RedeclComment; | |||
| 446 | } | |||
| 447 | CommentlessRedeclChains[CanonicalD] = Redecl; | |||
| 448 | } | |||
| 449 | ||||
| 450 | if (OriginalDecl) | |||
| 451 | *OriginalDecl = nullptr; | |||
| 452 | return nullptr; | |||
| 453 | } | |||
| 454 | ||||
| 455 | void ASTContext::cacheRawCommentForDecl(const Decl &OriginalD, | |||
| 456 | const RawComment &Comment) const { | |||
| 457 | assert(Comment.isDocumentation() || LangOpts.CommentOpts.ParseAllComments)(static_cast <bool> (Comment.isDocumentation() || LangOpts .CommentOpts.ParseAllComments) ? void (0) : __assert_fail ("Comment.isDocumentation() || LangOpts.CommentOpts.ParseAllComments" , "clang/lib/AST/ASTContext.cpp", 457, __extension__ __PRETTY_FUNCTION__ )); | |||
| 458 | DeclRawComments.try_emplace(&OriginalD, &Comment); | |||
| 459 | const Decl *const CanonicalDecl = OriginalD.getCanonicalDecl(); | |||
| 460 | RedeclChainComments.try_emplace(CanonicalDecl, &OriginalD); | |||
| 461 | CommentlessRedeclChains.erase(CanonicalDecl); | |||
| 462 | } | |||
| 463 | ||||
| 464 | static void addRedeclaredMethods(const ObjCMethodDecl *ObjCMethod, | |||
| 465 | SmallVectorImpl<const NamedDecl *> &Redeclared) { | |||
| 466 | const DeclContext *DC = ObjCMethod->getDeclContext(); | |||
| 467 | if (const auto *IMD = dyn_cast<ObjCImplDecl>(DC)) { | |||
| 468 | const ObjCInterfaceDecl *ID = IMD->getClassInterface(); | |||
| 469 | if (!ID) | |||
| 470 | return; | |||
| 471 | // Add redeclared method here. | |||
| 472 | for (const auto *Ext : ID->known_extensions()) { | |||
| 473 | if (ObjCMethodDecl *RedeclaredMethod = | |||
| 474 | Ext->getMethod(ObjCMethod->getSelector(), | |||
| 475 | ObjCMethod->isInstanceMethod())) | |||
| 476 | Redeclared.push_back(RedeclaredMethod); | |||
| 477 | } | |||
| 478 | } | |||
| 479 | } | |||
| 480 | ||||
| 481 | void ASTContext::attachCommentsToJustParsedDecls(ArrayRef<Decl *> Decls, | |||
| 482 | const Preprocessor *PP) { | |||
| 483 | if (Comments.empty() || Decls.empty()) | |||
| 484 | return; | |||
| 485 | ||||
| 486 | FileID File; | |||
| 487 | for (Decl *D : Decls) { | |||
| 488 | SourceLocation Loc = D->getLocation(); | |||
| 489 | if (Loc.isValid()) { | |||
| 490 | // See if there are any new comments that are not attached to a decl. | |||
| 491 | // The location doesn't have to be precise - we care only about the file. | |||
| 492 | File = SourceMgr.getDecomposedLoc(Loc).first; | |||
| 493 | break; | |||
| 494 | } | |||
| 495 | } | |||
| 496 | ||||
| 497 | if (File.isInvalid()) | |||
| 498 | return; | |||
| 499 | ||||
| 500 | auto CommentsInThisFile = Comments.getCommentsInFile(File); | |||
| 501 | if (!CommentsInThisFile || CommentsInThisFile->empty() || | |||
| 502 | CommentsInThisFile->rbegin()->second->isAttached()) | |||
| 503 | return; | |||
| 504 | ||||
| 505 | // There is at least one comment not attached to a decl. | |||
| 506 | // Maybe it should be attached to one of Decls? | |||
| 507 | // | |||
| 508 | // Note that this way we pick up not only comments that precede the | |||
| 509 | // declaration, but also comments that *follow* the declaration -- thanks to | |||
| 510 | // the lookahead in the lexer: we've consumed the semicolon and looked | |||
| 511 | // ahead through comments. | |||
| 512 | ||||
| 513 | for (const Decl *D : Decls) { | |||
| 514 | assert(D)(static_cast <bool> (D) ? void (0) : __assert_fail ("D" , "clang/lib/AST/ASTContext.cpp", 514, __extension__ __PRETTY_FUNCTION__ )); | |||
| 515 | if (D->isInvalidDecl()) | |||
| 516 | continue; | |||
| 517 | ||||
| 518 | D = &adjustDeclToTemplate(*D); | |||
| 519 | ||||
| 520 | const SourceLocation DeclLoc = getDeclLocForCommentSearch(D, SourceMgr); | |||
| 521 | ||||
| 522 | if (DeclLoc.isInvalid() || !DeclLoc.isFileID()) | |||
| 523 | continue; | |||
| 524 | ||||
| 525 | if (DeclRawComments.count(D) > 0) | |||
| 526 | continue; | |||
| 527 | ||||
| 528 | if (RawComment *const DocComment = | |||
| 529 | getRawCommentForDeclNoCacheImpl(D, DeclLoc, *CommentsInThisFile)) { | |||
| 530 | cacheRawCommentForDecl(*D, *DocComment); | |||
| 531 | comments::FullComment *FC = DocComment->parse(*this, PP, D); | |||
| 532 | ParsedComments[D->getCanonicalDecl()] = FC; | |||
| 533 | } | |||
| 534 | } | |||
| 535 | } | |||
| 536 | ||||
| 537 | comments::FullComment *ASTContext::cloneFullComment(comments::FullComment *FC, | |||
| 538 | const Decl *D) const { | |||
| 539 | auto *ThisDeclInfo = new (*this) comments::DeclInfo; | |||
| 540 | ThisDeclInfo->CommentDecl = D; | |||
| 541 | ThisDeclInfo->IsFilled = false; | |||
| 542 | ThisDeclInfo->fill(); | |||
| 543 | ThisDeclInfo->CommentDecl = FC->getDecl(); | |||
| 544 | if (!ThisDeclInfo->TemplateParameters) | |||
| 545 | ThisDeclInfo->TemplateParameters = FC->getDeclInfo()->TemplateParameters; | |||
| 546 | comments::FullComment *CFC = | |||
| 547 | new (*this) comments::FullComment(FC->getBlocks(), | |||
| 548 | ThisDeclInfo); | |||
| 549 | return CFC; | |||
| 550 | } | |||
| 551 | ||||
| 552 | comments::FullComment *ASTContext::getLocalCommentForDeclUncached(const Decl *D) const { | |||
| 553 | const RawComment *RC = getRawCommentForDeclNoCache(D); | |||
| 554 | return RC ? RC->parse(*this, nullptr, D) : nullptr; | |||
| 555 | } | |||
| 556 | ||||
| 557 | comments::FullComment *ASTContext::getCommentForDecl( | |||
| 558 | const Decl *D, | |||
| 559 | const Preprocessor *PP) const { | |||
| 560 | if (!D || D->isInvalidDecl()) | |||
| 561 | return nullptr; | |||
| 562 | D = &adjustDeclToTemplate(*D); | |||
| 563 | ||||
| 564 | const Decl *Canonical = D->getCanonicalDecl(); | |||
| 565 | llvm::DenseMap<const Decl *, comments::FullComment *>::iterator Pos = | |||
| 566 | ParsedComments.find(Canonical); | |||
| 567 | ||||
| 568 | if (Pos != ParsedComments.end()) { | |||
| 569 | if (Canonical != D) { | |||
| 570 | comments::FullComment *FC = Pos->second; | |||
| 571 | comments::FullComment *CFC = cloneFullComment(FC, D); | |||
| 572 | return CFC; | |||
| 573 | } | |||
| 574 | return Pos->second; | |||
| 575 | } | |||
| 576 | ||||
| 577 | const Decl *OriginalDecl = nullptr; | |||
| 578 | ||||
| 579 | const RawComment *RC = getRawCommentForAnyRedecl(D, &OriginalDecl); | |||
| 580 | if (!RC) { | |||
| 581 | if (isa<ObjCMethodDecl>(D) || isa<FunctionDecl>(D)) { | |||
| 582 | SmallVector<const NamedDecl*, 8> Overridden; | |||
| 583 | const auto *OMD = dyn_cast<ObjCMethodDecl>(D); | |||
| 584 | if (OMD && OMD->isPropertyAccessor()) | |||
| 585 | if (const ObjCPropertyDecl *PDecl = OMD->findPropertyDecl()) | |||
| 586 | if (comments::FullComment *FC = getCommentForDecl(PDecl, PP)) | |||
| 587 | return cloneFullComment(FC, D); | |||
| 588 | if (OMD) | |||
| 589 | addRedeclaredMethods(OMD, Overridden); | |||
| 590 | getOverriddenMethods(dyn_cast<NamedDecl>(D), Overridden); | |||
| 591 | for (unsigned i = 0, e = Overridden.size(); i < e; i++) | |||
| 592 | if (comments::FullComment *FC = getCommentForDecl(Overridden[i], PP)) | |||
| 593 | return cloneFullComment(FC, D); | |||
| 594 | } | |||
| 595 | else if (const auto *TD = dyn_cast<TypedefNameDecl>(D)) { | |||
| 596 | // Attach any tag type's documentation to its typedef if latter | |||
| 597 | // does not have one of its own. | |||
| 598 | QualType QT = TD->getUnderlyingType(); | |||
| 599 | if (const auto *TT = QT->getAs<TagType>()) | |||
| 600 | if (const Decl *TD = TT->getDecl()) | |||
| 601 | if (comments::FullComment *FC = getCommentForDecl(TD, PP)) | |||
| 602 | return cloneFullComment(FC, D); | |||
| 603 | } | |||
| 604 | else if (const auto *IC = dyn_cast<ObjCInterfaceDecl>(D)) { | |||
| 605 | while (IC->getSuperClass()) { | |||
| 606 | IC = IC->getSuperClass(); | |||
| 607 | if (comments::FullComment *FC = getCommentForDecl(IC, PP)) | |||
| 608 | return cloneFullComment(FC, D); | |||
| 609 | } | |||
| 610 | } | |||
| 611 | else if (const auto *CD = dyn_cast<ObjCCategoryDecl>(D)) { | |||
| 612 | if (const ObjCInterfaceDecl *IC = CD->getClassInterface()) | |||
| 613 | if (comments::FullComment *FC = getCommentForDecl(IC, PP)) | |||
| 614 | return cloneFullComment(FC, D); | |||
| 615 | } | |||
| 616 | else if (const auto *RD = dyn_cast<CXXRecordDecl>(D)) { | |||
| 617 | if (!(RD = RD->getDefinition())) | |||
| 618 | return nullptr; | |||
| 619 | // Check non-virtual bases. | |||
| 620 | for (const auto &I : RD->bases()) { | |||
| 621 | if (I.isVirtual() || (I.getAccessSpecifier() != AS_public)) | |||
| 622 | continue; | |||
| 623 | QualType Ty = I.getType(); | |||
| 624 | if (Ty.isNull()) | |||
| 625 | continue; | |||
| 626 | if (const CXXRecordDecl *NonVirtualBase = Ty->getAsCXXRecordDecl()) { | |||
| 627 | if (!(NonVirtualBase= NonVirtualBase->getDefinition())) | |||
| 628 | continue; | |||
| 629 | ||||
| 630 | if (comments::FullComment *FC = getCommentForDecl((NonVirtualBase), PP)) | |||
| 631 | return cloneFullComment(FC, D); | |||
| 632 | } | |||
| 633 | } | |||
| 634 | // Check virtual bases. | |||
| 635 | for (const auto &I : RD->vbases()) { | |||
| 636 | if (I.getAccessSpecifier() != AS_public) | |||
| 637 | continue; | |||
| 638 | QualType Ty = I.getType(); | |||
| 639 | if (Ty.isNull()) | |||
| 640 | continue; | |||
| 641 | if (const CXXRecordDecl *VirtualBase = Ty->getAsCXXRecordDecl()) { | |||
| 642 | if (!(VirtualBase= VirtualBase->getDefinition())) | |||
| 643 | continue; | |||
| 644 | if (comments::FullComment *FC = getCommentForDecl((VirtualBase), PP)) | |||
| 645 | return cloneFullComment(FC, D); | |||
| 646 | } | |||
| 647 | } | |||
| 648 | } | |||
| 649 | return nullptr; | |||
| 650 | } | |||
| 651 | ||||
| 652 | // If the RawComment was attached to other redeclaration of this Decl, we | |||
| 653 | // should parse the comment in context of that other Decl. This is important | |||
| 654 | // because comments can contain references to parameter names which can be | |||
| 655 | // different across redeclarations. | |||
| 656 | if (D != OriginalDecl && OriginalDecl) | |||
| 657 | return getCommentForDecl(OriginalDecl, PP); | |||
| 658 | ||||
| 659 | comments::FullComment *FC = RC->parse(*this, PP, D); | |||
| 660 | ParsedComments[Canonical] = FC; | |||
| 661 | return FC; | |||
| 662 | } | |||
| 663 | ||||
| 664 | void | |||
| 665 | ASTContext::CanonicalTemplateTemplateParm::Profile(llvm::FoldingSetNodeID &ID, | |||
| 666 | const ASTContext &C, | |||
| 667 | TemplateTemplateParmDecl *Parm) { | |||
| 668 | ID.AddInteger(Parm->getDepth()); | |||
| 669 | ID.AddInteger(Parm->getPosition()); | |||
| 670 | ID.AddBoolean(Parm->isParameterPack()); | |||
| 671 | ||||
| 672 | TemplateParameterList *Params = Parm->getTemplateParameters(); | |||
| 673 | ID.AddInteger(Params->size()); | |||
| 674 | for (TemplateParameterList::const_iterator P = Params->begin(), | |||
| 675 | PEnd = Params->end(); | |||
| 676 | P != PEnd; ++P) { | |||
| 677 | if (const auto *TTP = dyn_cast<TemplateTypeParmDecl>(*P)) { | |||
| 678 | ID.AddInteger(0); | |||
| 679 | ID.AddBoolean(TTP->isParameterPack()); | |||
| 680 | const TypeConstraint *TC = TTP->getTypeConstraint(); | |||
| 681 | ID.AddBoolean(TC != nullptr); | |||
| 682 | if (TC) | |||
| 683 | TC->getImmediatelyDeclaredConstraint()->Profile(ID, C, | |||
| 684 | /*Canonical=*/true); | |||
| 685 | if (TTP->isExpandedParameterPack()) { | |||
| 686 | ID.AddBoolean(true); | |||
| 687 | ID.AddInteger(TTP->getNumExpansionParameters()); | |||
| 688 | } else | |||
| 689 | ID.AddBoolean(false); | |||
| 690 | continue; | |||
| 691 | } | |||
| 692 | ||||
| 693 | if (const auto *NTTP = dyn_cast<NonTypeTemplateParmDecl>(*P)) { | |||
| 694 | ID.AddInteger(1); | |||
| 695 | ID.AddBoolean(NTTP->isParameterPack()); | |||
| 696 | ID.AddPointer(NTTP->getType().getCanonicalType().getAsOpaquePtr()); | |||
| 697 | if (NTTP->isExpandedParameterPack()) { | |||
| 698 | ID.AddBoolean(true); | |||
| 699 | ID.AddInteger(NTTP->getNumExpansionTypes()); | |||
| 700 | for (unsigned I = 0, N = NTTP->getNumExpansionTypes(); I != N; ++I) { | |||
| 701 | QualType T = NTTP->getExpansionType(I); | |||
| 702 | ID.AddPointer(T.getCanonicalType().getAsOpaquePtr()); | |||
| 703 | } | |||
| 704 | } else | |||
| 705 | ID.AddBoolean(false); | |||
| 706 | continue; | |||
| 707 | } | |||
| 708 | ||||
| 709 | auto *TTP = cast<TemplateTemplateParmDecl>(*P); | |||
| 710 | ID.AddInteger(2); | |||
| 711 | Profile(ID, C, TTP); | |||
| 712 | } | |||
| 713 | Expr *RequiresClause = Parm->getTemplateParameters()->getRequiresClause(); | |||
| 714 | ID.AddBoolean(RequiresClause != nullptr); | |||
| 715 | if (RequiresClause) | |||
| 716 | RequiresClause->Profile(ID, C, /*Canonical=*/true); | |||
| 717 | } | |||
| 718 | ||||
| 719 | static Expr * | |||
| 720 | canonicalizeImmediatelyDeclaredConstraint(const ASTContext &C, Expr *IDC, | |||
| 721 | QualType ConstrainedType) { | |||
| 722 | // This is a bit ugly - we need to form a new immediately-declared | |||
| 723 | // constraint that references the new parameter; this would ideally | |||
| 724 | // require semantic analysis (e.g. template<C T> struct S {}; - the | |||
| 725 | // converted arguments of C<T> could be an argument pack if C is | |||
| 726 | // declared as template<typename... T> concept C = ...). | |||
| 727 | // We don't have semantic analysis here so we dig deep into the | |||
| 728 | // ready-made constraint expr and change the thing manually. | |||
| 729 | ConceptSpecializationExpr *CSE; | |||
| 730 | if (const auto *Fold = dyn_cast<CXXFoldExpr>(IDC)) | |||
| 731 | CSE = cast<ConceptSpecializationExpr>(Fold->getLHS()); | |||
| 732 | else | |||
| 733 | CSE = cast<ConceptSpecializationExpr>(IDC); | |||
| 734 | ArrayRef<TemplateArgument> OldConverted = CSE->getTemplateArguments(); | |||
| 735 | SmallVector<TemplateArgument, 3> NewConverted; | |||
| 736 | NewConverted.reserve(OldConverted.size()); | |||
| 737 | if (OldConverted.front().getKind() == TemplateArgument::Pack) { | |||
| 738 | // The case: | |||
| 739 | // template<typename... T> concept C = true; | |||
| 740 | // template<C<int> T> struct S; -> constraint is C<{T, int}> | |||
| 741 | NewConverted.push_back(ConstrainedType); | |||
| 742 | llvm::append_range(NewConverted, | |||
| 743 | OldConverted.front().pack_elements().drop_front(1)); | |||
| 744 | TemplateArgument NewPack(NewConverted); | |||
| 745 | ||||
| 746 | NewConverted.clear(); | |||
| 747 | NewConverted.push_back(NewPack); | |||
| 748 | assert(OldConverted.size() == 1 &&(static_cast <bool> (OldConverted.size() == 1 && "Template parameter pack should be the last parameter") ? void (0) : __assert_fail ("OldConverted.size() == 1 && \"Template parameter pack should be the last parameter\"" , "clang/lib/AST/ASTContext.cpp", 749, __extension__ __PRETTY_FUNCTION__ )) | |||
| 749 | "Template parameter pack should be the last parameter")(static_cast <bool> (OldConverted.size() == 1 && "Template parameter pack should be the last parameter") ? void (0) : __assert_fail ("OldConverted.size() == 1 && \"Template parameter pack should be the last parameter\"" , "clang/lib/AST/ASTContext.cpp", 749, __extension__ __PRETTY_FUNCTION__ )); | |||
| 750 | } else { | |||
| 751 | assert(OldConverted.front().getKind() == TemplateArgument::Type &&(static_cast <bool> (OldConverted.front().getKind() == TemplateArgument ::Type && "Unexpected first argument kind for immediately-declared " "constraint") ? void (0) : __assert_fail ("OldConverted.front().getKind() == TemplateArgument::Type && \"Unexpected first argument kind for immediately-declared \" \"constraint\"" , "clang/lib/AST/ASTContext.cpp", 753, __extension__ __PRETTY_FUNCTION__ )) | |||
| 752 | "Unexpected first argument kind for immediately-declared "(static_cast <bool> (OldConverted.front().getKind() == TemplateArgument ::Type && "Unexpected first argument kind for immediately-declared " "constraint") ? void (0) : __assert_fail ("OldConverted.front().getKind() == TemplateArgument::Type && \"Unexpected first argument kind for immediately-declared \" \"constraint\"" , "clang/lib/AST/ASTContext.cpp", 753, __extension__ __PRETTY_FUNCTION__ )) | |||
| 753 | "constraint")(static_cast <bool> (OldConverted.front().getKind() == TemplateArgument ::Type && "Unexpected first argument kind for immediately-declared " "constraint") ? void (0) : __assert_fail ("OldConverted.front().getKind() == TemplateArgument::Type && \"Unexpected first argument kind for immediately-declared \" \"constraint\"" , "clang/lib/AST/ASTContext.cpp", 753, __extension__ __PRETTY_FUNCTION__ )); | |||
| 754 | NewConverted.push_back(ConstrainedType); | |||
| 755 | llvm::append_range(NewConverted, OldConverted.drop_front(1)); | |||
| 756 | } | |||
| 757 | Expr *NewIDC = ConceptSpecializationExpr::Create( | |||
| 758 | C, CSE->getNamedConcept(), NewConverted, nullptr, | |||
| 759 | CSE->isInstantiationDependent(), CSE->containsUnexpandedParameterPack()); | |||
| 760 | ||||
| 761 | if (auto *OrigFold = dyn_cast<CXXFoldExpr>(IDC)) | |||
| 762 | NewIDC = new (C) CXXFoldExpr( | |||
| 763 | OrigFold->getType(), /*Callee*/nullptr, SourceLocation(), NewIDC, | |||
| 764 | BinaryOperatorKind::BO_LAnd, SourceLocation(), /*RHS=*/nullptr, | |||
| 765 | SourceLocation(), /*NumExpansions=*/None); | |||
| 766 | return NewIDC; | |||
| 767 | } | |||
| 768 | ||||
| 769 | TemplateTemplateParmDecl * | |||
| 770 | ASTContext::getCanonicalTemplateTemplateParmDecl( | |||
| 771 | TemplateTemplateParmDecl *TTP) const { | |||
| 772 | // Check if we already have a canonical template template parameter. | |||
| 773 | llvm::FoldingSetNodeID ID; | |||
| 774 | CanonicalTemplateTemplateParm::Profile(ID, *this, TTP); | |||
| 775 | void *InsertPos = nullptr; | |||
| 776 | CanonicalTemplateTemplateParm *Canonical | |||
| 777 | = CanonTemplateTemplateParms.FindNodeOrInsertPos(ID, InsertPos); | |||
| 778 | if (Canonical) | |||
| 779 | return Canonical->getParam(); | |||
| 780 | ||||
| 781 | // Build a canonical template parameter list. | |||
| 782 | TemplateParameterList *Params = TTP->getTemplateParameters(); | |||
| 783 | SmallVector<NamedDecl *, 4> CanonParams; | |||
| 784 | CanonParams.reserve(Params->size()); | |||
| 785 | for (TemplateParameterList::const_iterator P = Params->begin(), | |||
| 786 | PEnd = Params->end(); | |||
| 787 | P != PEnd; ++P) { | |||
| 788 | if (const auto *TTP = dyn_cast<TemplateTypeParmDecl>(*P)) { | |||
| 789 | TemplateTypeParmDecl *NewTTP = TemplateTypeParmDecl::Create(*this, | |||
| 790 | getTranslationUnitDecl(), SourceLocation(), SourceLocation(), | |||
| 791 | TTP->getDepth(), TTP->getIndex(), nullptr, false, | |||
| 792 | TTP->isParameterPack(), TTP->hasTypeConstraint(), | |||
| 793 | TTP->isExpandedParameterPack() ? | |||
| 794 | llvm::Optional<unsigned>(TTP->getNumExpansionParameters()) : None); | |||
| 795 | if (const auto *TC = TTP->getTypeConstraint()) { | |||
| 796 | QualType ParamAsArgument(NewTTP->getTypeForDecl(), 0); | |||
| 797 | Expr *NewIDC = canonicalizeImmediatelyDeclaredConstraint( | |||
| 798 | *this, TC->getImmediatelyDeclaredConstraint(), | |||
| 799 | ParamAsArgument); | |||
| 800 | TemplateArgumentListInfo CanonArgsAsWritten; | |||
| 801 | if (auto *Args = TC->getTemplateArgsAsWritten()) | |||
| 802 | for (const auto &ArgLoc : Args->arguments()) | |||
| 803 | CanonArgsAsWritten.addArgument( | |||
| 804 | TemplateArgumentLoc(ArgLoc.getArgument(), | |||
| 805 | TemplateArgumentLocInfo())); | |||
| 806 | NewTTP->setTypeConstraint( | |||
| 807 | NestedNameSpecifierLoc(), | |||
| 808 | DeclarationNameInfo(TC->getNamedConcept()->getDeclName(), | |||
| 809 | SourceLocation()), /*FoundDecl=*/nullptr, | |||
| 810 | // Actually canonicalizing a TemplateArgumentLoc is difficult so we | |||
| 811 | // simply omit the ArgsAsWritten | |||
| 812 | TC->getNamedConcept(), /*ArgsAsWritten=*/nullptr, NewIDC); | |||
| 813 | } | |||
| 814 | CanonParams.push_back(NewTTP); | |||
| 815 | } else if (const auto *NTTP = dyn_cast<NonTypeTemplateParmDecl>(*P)) { | |||
| 816 | QualType T = getCanonicalType(NTTP->getType()); | |||
| 817 | TypeSourceInfo *TInfo = getTrivialTypeSourceInfo(T); | |||
| 818 | NonTypeTemplateParmDecl *Param; | |||
| 819 | if (NTTP->isExpandedParameterPack()) { | |||
| 820 | SmallVector<QualType, 2> ExpandedTypes; | |||
| 821 | SmallVector<TypeSourceInfo *, 2> ExpandedTInfos; | |||
| 822 | for (unsigned I = 0, N = NTTP->getNumExpansionTypes(); I != N; ++I) { | |||
| 823 | ExpandedTypes.push_back(getCanonicalType(NTTP->getExpansionType(I))); | |||
| 824 | ExpandedTInfos.push_back( | |||
| 825 | getTrivialTypeSourceInfo(ExpandedTypes.back())); | |||
| 826 | } | |||
| 827 | ||||
| 828 | Param = NonTypeTemplateParmDecl::Create(*this, getTranslationUnitDecl(), | |||
| 829 | SourceLocation(), | |||
| 830 | SourceLocation(), | |||
| 831 | NTTP->getDepth(), | |||
| 832 | NTTP->getPosition(), nullptr, | |||
| 833 | T, | |||
| 834 | TInfo, | |||
| 835 | ExpandedTypes, | |||
| 836 | ExpandedTInfos); | |||
| 837 | } else { | |||
| 838 | Param = NonTypeTemplateParmDecl::Create(*this, getTranslationUnitDecl(), | |||
| 839 | SourceLocation(), | |||
| 840 | SourceLocation(), | |||
| 841 | NTTP->getDepth(), | |||
| 842 | NTTP->getPosition(), nullptr, | |||
| 843 | T, | |||
| 844 | NTTP->isParameterPack(), | |||
| 845 | TInfo); | |||
| 846 | } | |||
| 847 | if (AutoType *AT = T->getContainedAutoType()) { | |||
| 848 | if (AT->isConstrained()) { | |||
| 849 | Param->setPlaceholderTypeConstraint( | |||
| 850 | canonicalizeImmediatelyDeclaredConstraint( | |||
| 851 | *this, NTTP->getPlaceholderTypeConstraint(), T)); | |||
| 852 | } | |||
| 853 | } | |||
| 854 | CanonParams.push_back(Param); | |||
| 855 | ||||
| 856 | } else | |||
| 857 | CanonParams.push_back(getCanonicalTemplateTemplateParmDecl( | |||
| 858 | cast<TemplateTemplateParmDecl>(*P))); | |||
| 859 | } | |||
| 860 | ||||
| 861 | Expr *CanonRequiresClause = nullptr; | |||
| 862 | if (Expr *RequiresClause = TTP->getTemplateParameters()->getRequiresClause()) | |||
| 863 | CanonRequiresClause = RequiresClause; | |||
| 864 | ||||
| 865 | TemplateTemplateParmDecl *CanonTTP | |||
| 866 | = TemplateTemplateParmDecl::Create(*this, getTranslationUnitDecl(), | |||
| 867 | SourceLocation(), TTP->getDepth(), | |||
| 868 | TTP->getPosition(), | |||
| 869 | TTP->isParameterPack(), | |||
| 870 | nullptr, | |||
| 871 | TemplateParameterList::Create(*this, SourceLocation(), | |||
| 872 | SourceLocation(), | |||
| 873 | CanonParams, | |||
| 874 | SourceLocation(), | |||
| 875 | CanonRequiresClause)); | |||
| 876 | ||||
| 877 | // Get the new insert position for the node we care about. | |||
| 878 | Canonical = CanonTemplateTemplateParms.FindNodeOrInsertPos(ID, InsertPos); | |||
| 879 | assert(!Canonical && "Shouldn't be in the map!")(static_cast <bool> (!Canonical && "Shouldn't be in the map!" ) ? void (0) : __assert_fail ("!Canonical && \"Shouldn't be in the map!\"" , "clang/lib/AST/ASTContext.cpp", 879, __extension__ __PRETTY_FUNCTION__ )); | |||
| 880 | (void)Canonical; | |||
| 881 | ||||
| 882 | // Create the canonical template template parameter entry. | |||
| 883 | Canonical = new (*this) CanonicalTemplateTemplateParm(CanonTTP); | |||
| 884 | CanonTemplateTemplateParms.InsertNode(Canonical, InsertPos); | |||
| 885 | return CanonTTP; | |||
| 886 | } | |||
| 887 | ||||
| 888 | TargetCXXABI::Kind ASTContext::getCXXABIKind() const { | |||
| 889 | auto Kind = getTargetInfo().getCXXABI().getKind(); | |||
| 890 | return getLangOpts().CXXABI.getValueOr(Kind); | |||
| 891 | } | |||
| 892 | ||||
| 893 | CXXABI *ASTContext::createCXXABI(const TargetInfo &T) { | |||
| 894 | if (!LangOpts.CPlusPlus) return nullptr; | |||
| 895 | ||||
| 896 | switch (getCXXABIKind()) { | |||
| 897 | case TargetCXXABI::AppleARM64: | |||
| 898 | case TargetCXXABI::Fuchsia: | |||
| 899 | case TargetCXXABI::GenericARM: // Same as Itanium at this level | |||
| 900 | case TargetCXXABI::iOS: | |||
| 901 | case TargetCXXABI::WatchOS: | |||
| 902 | case TargetCXXABI::GenericAArch64: | |||
| 903 | case TargetCXXABI::GenericMIPS: | |||
| 904 | case TargetCXXABI::GenericItanium: | |||
| 905 | case TargetCXXABI::WebAssembly: | |||
| 906 | case TargetCXXABI::XL: | |||
| 907 | return CreateItaniumCXXABI(*this); | |||
| 908 | case TargetCXXABI::Microsoft: | |||
| 909 | return CreateMicrosoftCXXABI(*this); | |||
| 910 | } | |||
| 911 | llvm_unreachable("Invalid CXXABI type!")::llvm::llvm_unreachable_internal("Invalid CXXABI type!", "clang/lib/AST/ASTContext.cpp" , 911); | |||
| 912 | } | |||
| 913 | ||||
| 914 | interp::Context &ASTContext::getInterpContext() { | |||
| 915 | if (!InterpContext) { | |||
| 916 | InterpContext.reset(new interp::Context(*this)); | |||
| 917 | } | |||
| 918 | return *InterpContext.get(); | |||
| 919 | } | |||
| 920 | ||||
| 921 | ParentMapContext &ASTContext::getParentMapContext() { | |||
| 922 | if (!ParentMapCtx) | |||
| 923 | ParentMapCtx.reset(new ParentMapContext(*this)); | |||
| 924 | return *ParentMapCtx.get(); | |||
| 925 | } | |||
| 926 | ||||
| 927 | static const LangASMap *getAddressSpaceMap(const TargetInfo &T, | |||
| 928 | const LangOptions &LOpts) { | |||
| 929 | if (LOpts.FakeAddressSpaceMap) { | |||
| 930 | // The fake address space map must have a distinct entry for each | |||
| 931 | // language-specific address space. | |||
| 932 | static const unsigned FakeAddrSpaceMap[] = { | |||
| 933 | 0, // Default | |||
| 934 | 1, // opencl_global | |||
| 935 | 3, // opencl_local | |||
| 936 | 2, // opencl_constant | |||
| 937 | 0, // opencl_private | |||
| 938 | 4, // opencl_generic | |||
| 939 | 5, // opencl_global_device | |||
| 940 | 6, // opencl_global_host | |||
| 941 | 7, // cuda_device | |||
| 942 | 8, // cuda_constant | |||
| 943 | 9, // cuda_shared | |||
| 944 | 1, // sycl_global | |||
| 945 | 5, // sycl_global_device | |||
| 946 | 6, // sycl_global_host | |||
| 947 | 3, // sycl_local | |||
| 948 | 0, // sycl_private | |||
| 949 | 10, // ptr32_sptr | |||
| 950 | 11, // ptr32_uptr | |||
| 951 | 12 // ptr64 | |||
| 952 | }; | |||
| 953 | return &FakeAddrSpaceMap; | |||
| 954 | } else { | |||
| 955 | return &T.getAddressSpaceMap(); | |||
| 956 | } | |||
| 957 | } | |||
| 958 | ||||
| 959 | static bool isAddrSpaceMapManglingEnabled(const TargetInfo &TI, | |||
| 960 | const LangOptions &LangOpts) { | |||
| 961 | switch (LangOpts.getAddressSpaceMapMangling()) { | |||
| 962 | case LangOptions::ASMM_Target: | |||
| 963 | return TI.useAddressSpaceMapMangling(); | |||
| 964 | case LangOptions::ASMM_On: | |||
| 965 | return true; | |||
| 966 | case LangOptions::ASMM_Off: | |||
| 967 | return false; | |||
| 968 | } | |||
| 969 | llvm_unreachable("getAddressSpaceMapMangling() doesn't cover anything.")::llvm::llvm_unreachable_internal("getAddressSpaceMapMangling() doesn't cover anything." , "clang/lib/AST/ASTContext.cpp", 969); | |||
| 970 | } | |||
| 971 | ||||
| 972 | ASTContext::ASTContext(LangOptions &LOpts, SourceManager &SM, | |||
| 973 | IdentifierTable &idents, SelectorTable &sels, | |||
| 974 | Builtin::Context &builtins, TranslationUnitKind TUKind) | |||
| 975 | : ConstantArrayTypes(this_(), ConstantArrayTypesLog2InitSize), | |||
| 976 | FunctionProtoTypes(this_(), FunctionProtoTypesLog2InitSize), | |||
| 977 | TemplateSpecializationTypes(this_()), | |||
| 978 | DependentTemplateSpecializationTypes(this_()), AutoTypes(this_()), | |||
| 979 | SubstTemplateTemplateParmPacks(this_()), | |||
| 980 | CanonTemplateTemplateParms(this_()), SourceMgr(SM), LangOpts(LOpts), | |||
| 981 | NoSanitizeL(new NoSanitizeList(LangOpts.NoSanitizeFiles, SM)), | |||
| 982 | XRayFilter(new XRayFunctionFilter(LangOpts.XRayAlwaysInstrumentFiles, | |||
| 983 | LangOpts.XRayNeverInstrumentFiles, | |||
| 984 | LangOpts.XRayAttrListFiles, SM)), | |||
| 985 | ProfList(new ProfileList(LangOpts.ProfileListFiles, SM)), | |||
| 986 | PrintingPolicy(LOpts), Idents(idents), Selectors(sels), | |||
| 987 | BuiltinInfo(builtins), TUKind(TUKind), DeclarationNames(*this), | |||
| 988 | Comments(SM), CommentCommandTraits(BumpAlloc, LOpts.CommentOpts), | |||
| 989 | CompCategories(this_()), LastSDM(nullptr, 0) { | |||
| 990 | addTranslationUnitDecl(); | |||
| 991 | } | |||
| 992 | ||||
| 993 | void ASTContext::cleanup() { | |||
| 994 | // Release the DenseMaps associated with DeclContext objects. | |||
| 995 | // FIXME: Is this the ideal solution? | |||
| 996 | ReleaseDeclContextMaps(); | |||
| 997 | ||||
| 998 | // Call all of the deallocation functions on all of their targets. | |||
| 999 | for (auto &Pair : Deallocations) | |||
| 1000 | (Pair.first)(Pair.second); | |||
| 1001 | Deallocations.clear(); | |||
| 1002 | ||||
| 1003 | // ASTRecordLayout objects in ASTRecordLayouts must always be destroyed | |||
| 1004 | // because they can contain DenseMaps. | |||
| 1005 | for (llvm::DenseMap<const ObjCContainerDecl*, | |||
| 1006 | const ASTRecordLayout*>::iterator | |||
| 1007 | I = ObjCLayouts.begin(), E = ObjCLayouts.end(); I != E; ) | |||
| 1008 | // Increment in loop to prevent using deallocated memory. | |||
| 1009 | if (auto *R = const_cast<ASTRecordLayout *>((I++)->second)) | |||
| 1010 | R->Destroy(*this); | |||
| 1011 | ObjCLayouts.clear(); | |||
| 1012 | ||||
| 1013 | for (llvm::DenseMap<const RecordDecl*, const ASTRecordLayout*>::iterator | |||
| 1014 | I = ASTRecordLayouts.begin(), E = ASTRecordLayouts.end(); I != E; ) { | |||
| 1015 | // Increment in loop to prevent using deallocated memory. | |||
| 1016 | if (auto *R = const_cast<ASTRecordLayout *>((I++)->second)) | |||
| 1017 | R->Destroy(*this); | |||
| 1018 | } | |||
| 1019 | ASTRecordLayouts.clear(); | |||
| 1020 | ||||
| 1021 | for (llvm::DenseMap<const Decl*, AttrVec*>::iterator A = DeclAttrs.begin(), | |||
| 1022 | AEnd = DeclAttrs.end(); | |||
| 1023 | A != AEnd; ++A) | |||
| 1024 | A->second->~AttrVec(); | |||
| 1025 | DeclAttrs.clear(); | |||
| 1026 | ||||
| 1027 | for (const auto &Value : ModuleInitializers) | |||
| 1028 | Value.second->~PerModuleInitializers(); | |||
| 1029 | ModuleInitializers.clear(); | |||
| 1030 | } | |||
| 1031 | ||||
| 1032 | ASTContext::~ASTContext() { cleanup(); } | |||
| 1033 | ||||
| 1034 | void ASTContext::setTraversalScope(const std::vector<Decl *> &TopLevelDecls) { | |||
| 1035 | TraversalScope = TopLevelDecls; | |||
| 1036 | getParentMapContext().clear(); | |||
| 1037 | } | |||
| 1038 | ||||
| 1039 | void ASTContext::AddDeallocation(void (*Callback)(void *), void *Data) const { | |||
| 1040 | Deallocations.push_back({Callback, Data}); | |||
| 1041 | } | |||
| 1042 | ||||
| 1043 | void | |||
| 1044 | ASTContext::setExternalSource(IntrusiveRefCntPtr<ExternalASTSource> Source) { | |||
| 1045 | ExternalSource = std::move(Source); | |||
| 1046 | } | |||
| 1047 | ||||
| 1048 | void ASTContext::PrintStats() const { | |||
| 1049 | llvm::errs() << "\n*** AST Context Stats:\n"; | |||
| 1050 | llvm::errs() << " " << Types.size() << " types total.\n"; | |||
| 1051 | ||||
| 1052 | unsigned counts[] = { | |||
| 1053 | #define TYPE(Name, Parent) 0, | |||
| 1054 | #define ABSTRACT_TYPE(Name, Parent) | |||
| 1055 | #include "clang/AST/TypeNodes.inc" | |||
| 1056 | 0 // Extra | |||
| 1057 | }; | |||
| 1058 | ||||
| 1059 | for (unsigned i = 0, e = Types.size(); i != e; ++i) { | |||
| 1060 | Type *T = Types[i]; | |||
| 1061 | counts[(unsigned)T->getTypeClass()]++; | |||
| 1062 | } | |||
| 1063 | ||||
| 1064 | unsigned Idx = 0; | |||
| 1065 | unsigned TotalBytes = 0; | |||
| 1066 | #define TYPE(Name, Parent) \ | |||
| 1067 | if (counts[Idx]) \ | |||
| 1068 | llvm::errs() << " " << counts[Idx] << " " << #Name \ | |||
| 1069 | << " types, " << sizeof(Name##Type) << " each " \ | |||
| 1070 | << "(" << counts[Idx] * sizeof(Name##Type) \ | |||
| 1071 | << " bytes)\n"; \ | |||
| 1072 | TotalBytes += counts[Idx] * sizeof(Name##Type); \ | |||
| 1073 | ++Idx; | |||
| 1074 | #define ABSTRACT_TYPE(Name, Parent) | |||
| 1075 | #include "clang/AST/TypeNodes.inc" | |||
| 1076 | ||||
| 1077 | llvm::errs() << "Total bytes = " << TotalBytes << "\n"; | |||
| 1078 | ||||
| 1079 | // Implicit special member functions. | |||
| 1080 | llvm::errs() << NumImplicitDefaultConstructorsDeclared << "/" | |||
| 1081 | << NumImplicitDefaultConstructors | |||
| 1082 | << " implicit default constructors created\n"; | |||
| 1083 | llvm::errs() << NumImplicitCopyConstructorsDeclared << "/" | |||
| 1084 | << NumImplicitCopyConstructors | |||
| 1085 | << " implicit copy constructors created\n"; | |||
| 1086 | if (getLangOpts().CPlusPlus) | |||
| 1087 | llvm::errs() << NumImplicitMoveConstructorsDeclared << "/" | |||
| 1088 | << NumImplicitMoveConstructors | |||
| 1089 | << " implicit move constructors created\n"; | |||
| 1090 | llvm::errs() << NumImplicitCopyAssignmentOperatorsDeclared << "/" | |||
| 1091 | << NumImplicitCopyAssignmentOperators | |||
| 1092 | << " implicit copy assignment operators created\n"; | |||
| 1093 | if (getLangOpts().CPlusPlus) | |||
| 1094 | llvm::errs() << NumImplicitMoveAssignmentOperatorsDeclared << "/" | |||
| 1095 | << NumImplicitMoveAssignmentOperators | |||
| 1096 | << " implicit move assignment operators created\n"; | |||
| 1097 | llvm::errs() << NumImplicitDestructorsDeclared << "/" | |||
| 1098 | << NumImplicitDestructors | |||
| 1099 | << " implicit destructors created\n"; | |||
| 1100 | ||||
| 1101 | if (ExternalSource) { | |||
| 1102 | llvm::errs() << "\n"; | |||
| 1103 | ExternalSource->PrintStats(); | |||
| 1104 | } | |||
| 1105 | ||||
| 1106 | BumpAlloc.PrintStats(); | |||
| 1107 | } | |||
| 1108 | ||||
| 1109 | void ASTContext::mergeDefinitionIntoModule(NamedDecl *ND, Module *M, | |||
| 1110 | bool NotifyListeners) { | |||
| 1111 | if (NotifyListeners) | |||
| 1112 | if (auto *Listener = getASTMutationListener()) | |||
| 1113 | Listener->RedefinedHiddenDefinition(ND, M); | |||
| 1114 | ||||
| 1115 | MergedDefModules[cast<NamedDecl>(ND->getCanonicalDecl())].push_back(M); | |||
| 1116 | } | |||
| 1117 | ||||
| 1118 | void ASTContext::deduplicateMergedDefinitonsFor(NamedDecl *ND) { | |||
| 1119 | auto It = MergedDefModules.find(cast<NamedDecl>(ND->getCanonicalDecl())); | |||
| 1120 | if (It == MergedDefModules.end()) | |||
| 1121 | return; | |||
| 1122 | ||||
| 1123 | auto &Merged = It->second; | |||
| 1124 | llvm::DenseSet<Module*> Found; | |||
| 1125 | for (Module *&M : Merged) | |||
| 1126 | if (!Found.insert(M).second) | |||
| 1127 | M = nullptr; | |||
| 1128 | llvm::erase_value(Merged, nullptr); | |||
| 1129 | } | |||
| 1130 | ||||
| 1131 | ArrayRef<Module *> | |||
| 1132 | ASTContext::getModulesWithMergedDefinition(const NamedDecl *Def) { | |||
| 1133 | auto MergedIt = | |||
| 1134 | MergedDefModules.find(cast<NamedDecl>(Def->getCanonicalDecl())); | |||
| 1135 | if (MergedIt == MergedDefModules.end()) | |||
| 1136 | return None; | |||
| 1137 | return MergedIt->second; | |||
| 1138 | } | |||
| 1139 | ||||
| 1140 | void ASTContext::PerModuleInitializers::resolve(ASTContext &Ctx) { | |||
| 1141 | if (LazyInitializers.empty()) | |||
| 1142 | return; | |||
| 1143 | ||||
| 1144 | auto *Source = Ctx.getExternalSource(); | |||
| 1145 | assert(Source && "lazy initializers but no external source")(static_cast <bool> (Source && "lazy initializers but no external source" ) ? void (0) : __assert_fail ("Source && \"lazy initializers but no external source\"" , "clang/lib/AST/ASTContext.cpp", 1145, __extension__ __PRETTY_FUNCTION__ )); | |||
| 1146 | ||||
| 1147 | auto LazyInits = std::move(LazyInitializers); | |||
| 1148 | LazyInitializers.clear(); | |||
| 1149 | ||||
| 1150 | for (auto ID : LazyInits) | |||
| 1151 | Initializers.push_back(Source->GetExternalDecl(ID)); | |||
| 1152 | ||||
| 1153 | assert(LazyInitializers.empty() &&(static_cast <bool> (LazyInitializers.empty() && "GetExternalDecl for lazy module initializer added more inits" ) ? void (0) : __assert_fail ("LazyInitializers.empty() && \"GetExternalDecl for lazy module initializer added more inits\"" , "clang/lib/AST/ASTContext.cpp", 1154, __extension__ __PRETTY_FUNCTION__ )) | |||
| 1154 | "GetExternalDecl for lazy module initializer added more inits")(static_cast <bool> (LazyInitializers.empty() && "GetExternalDecl for lazy module initializer added more inits" ) ? void (0) : __assert_fail ("LazyInitializers.empty() && \"GetExternalDecl for lazy module initializer added more inits\"" , "clang/lib/AST/ASTContext.cpp", 1154, __extension__ __PRETTY_FUNCTION__ )); | |||
| 1155 | } | |||
| 1156 | ||||
| 1157 | void ASTContext::addModuleInitializer(Module *M, Decl *D) { | |||
| 1158 | // One special case: if we add a module initializer that imports another | |||
| 1159 | // module, and that module's only initializer is an ImportDecl, simplify. | |||
| 1160 | if (const auto *ID = dyn_cast<ImportDecl>(D)) { | |||
| 1161 | auto It = ModuleInitializers.find(ID->getImportedModule()); | |||
| 1162 | ||||
| 1163 | // Maybe the ImportDecl does nothing at all. (Common case.) | |||
| 1164 | if (It == ModuleInitializers.end()) | |||
| 1165 | return; | |||
| 1166 | ||||
| 1167 | // Maybe the ImportDecl only imports another ImportDecl. | |||
| 1168 | auto &Imported = *It->second; | |||
| 1169 | if (Imported.Initializers.size() + Imported.LazyInitializers.size() == 1) { | |||
| 1170 | Imported.resolve(*this); | |||
| 1171 | auto *OnlyDecl = Imported.Initializers.front(); | |||
| 1172 | if (isa<ImportDecl>(OnlyDecl)) | |||
| 1173 | D = OnlyDecl; | |||
| 1174 | } | |||
| 1175 | } | |||
| 1176 | ||||
| 1177 | auto *&Inits = ModuleInitializers[M]; | |||
| 1178 | if (!Inits) | |||
| 1179 | Inits = new (*this) PerModuleInitializers; | |||
| 1180 | Inits->Initializers.push_back(D); | |||
| 1181 | } | |||
| 1182 | ||||
| 1183 | void ASTContext::addLazyModuleInitializers(Module *M, ArrayRef<uint32_t> IDs) { | |||
| 1184 | auto *&Inits = ModuleInitializers[M]; | |||
| 1185 | if (!Inits) | |||
| 1186 | Inits = new (*this) PerModuleInitializers; | |||
| 1187 | Inits->LazyInitializers.insert(Inits->LazyInitializers.end(), | |||
| 1188 | IDs.begin(), IDs.end()); | |||
| 1189 | } | |||
| 1190 | ||||
| 1191 | ArrayRef<Decl *> ASTContext::getModuleInitializers(Module *M) { | |||
| 1192 | auto It = ModuleInitializers.find(M); | |||
| 1193 | if (It == ModuleInitializers.end()) | |||
| 1194 | return None; | |||
| 1195 | ||||
| 1196 | auto *Inits = It->second; | |||
| 1197 | Inits->resolve(*this); | |||
| 1198 | return Inits->Initializers; | |||
| 1199 | } | |||
| 1200 | ||||
| 1201 | ExternCContextDecl *ASTContext::getExternCContextDecl() const { | |||
| 1202 | if (!ExternCContext) | |||
| 1203 | ExternCContext = ExternCContextDecl::Create(*this, getTranslationUnitDecl()); | |||
| 1204 | ||||
| 1205 | return ExternCContext; | |||
| 1206 | } | |||
| 1207 | ||||
| 1208 | BuiltinTemplateDecl * | |||
| 1209 | ASTContext::buildBuiltinTemplateDecl(BuiltinTemplateKind BTK, | |||
| 1210 | const IdentifierInfo *II) const { | |||
| 1211 | auto *BuiltinTemplate = | |||
| 1212 | BuiltinTemplateDecl::Create(*this, getTranslationUnitDecl(), II, BTK); | |||
| 1213 | BuiltinTemplate->setImplicit(); | |||
| 1214 | getTranslationUnitDecl()->addDecl(BuiltinTemplate); | |||
| 1215 | ||||
| 1216 | return BuiltinTemplate; | |||
| 1217 | } | |||
| 1218 | ||||
| 1219 | BuiltinTemplateDecl * | |||
| 1220 | ASTContext::getMakeIntegerSeqDecl() const { | |||
| 1221 | if (!MakeIntegerSeqDecl) | |||
| 1222 | MakeIntegerSeqDecl = buildBuiltinTemplateDecl(BTK__make_integer_seq, | |||
| 1223 | getMakeIntegerSeqName()); | |||
| 1224 | return MakeIntegerSeqDecl; | |||
| 1225 | } | |||
| 1226 | ||||
| 1227 | BuiltinTemplateDecl * | |||
| 1228 | ASTContext::getTypePackElementDecl() const { | |||
| 1229 | if (!TypePackElementDecl) | |||
| 1230 | TypePackElementDecl = buildBuiltinTemplateDecl(BTK__type_pack_element, | |||
| 1231 | getTypePackElementName()); | |||
| 1232 | return TypePackElementDecl; | |||
| 1233 | } | |||
| 1234 | ||||
| 1235 | RecordDecl *ASTContext::buildImplicitRecord(StringRef Name, | |||
| 1236 | RecordDecl::TagKind TK) const { | |||
| 1237 | SourceLocation Loc; | |||
| 1238 | RecordDecl *NewDecl; | |||
| 1239 | if (getLangOpts().CPlusPlus) | |||
| 1240 | NewDecl = CXXRecordDecl::Create(*this, TK, getTranslationUnitDecl(), Loc, | |||
| 1241 | Loc, &Idents.get(Name)); | |||
| 1242 | else | |||
| 1243 | NewDecl = RecordDecl::Create(*this, TK, getTranslationUnitDecl(), Loc, Loc, | |||
| 1244 | &Idents.get(Name)); | |||
| 1245 | NewDecl->setImplicit(); | |||
| 1246 | NewDecl->addAttr(TypeVisibilityAttr::CreateImplicit( | |||
| 1247 | const_cast<ASTContext &>(*this), TypeVisibilityAttr::Default)); | |||
| 1248 | return NewDecl; | |||
| 1249 | } | |||
| 1250 | ||||
| 1251 | TypedefDecl *ASTContext::buildImplicitTypedef(QualType T, | |||
| 1252 | StringRef Name) const { | |||
| 1253 | TypeSourceInfo *TInfo = getTrivialTypeSourceInfo(T); | |||
| 1254 | TypedefDecl *NewDecl = TypedefDecl::Create( | |||
| 1255 | const_cast<ASTContext &>(*this), getTranslationUnitDecl(), | |||
| 1256 | SourceLocation(), SourceLocation(), &Idents.get(Name), TInfo); | |||
| 1257 | NewDecl->setImplicit(); | |||
| 1258 | return NewDecl; | |||
| 1259 | } | |||
| 1260 | ||||
| 1261 | TypedefDecl *ASTContext::getInt128Decl() const { | |||
| 1262 | if (!Int128Decl) | |||
| 1263 | Int128Decl = buildImplicitTypedef(Int128Ty, "__int128_t"); | |||
| 1264 | return Int128Decl; | |||
| 1265 | } | |||
| 1266 | ||||
| 1267 | TypedefDecl *ASTContext::getUInt128Decl() const { | |||
| 1268 | if (!UInt128Decl) | |||
| 1269 | UInt128Decl = buildImplicitTypedef(UnsignedInt128Ty, "__uint128_t"); | |||
| 1270 | return UInt128Decl; | |||
| 1271 | } | |||
| 1272 | ||||
| 1273 | void ASTContext::InitBuiltinType(CanQualType &R, BuiltinType::Kind K) { | |||
| 1274 | auto *Ty = new (*this, TypeAlignment) BuiltinType(K); | |||
| 1275 | R = CanQualType::CreateUnsafe(QualType(Ty, 0)); | |||
| 1276 | Types.push_back(Ty); | |||
| 1277 | } | |||
| 1278 | ||||
| 1279 | void ASTContext::InitBuiltinTypes(const TargetInfo &Target, | |||
| 1280 | const TargetInfo *AuxTarget) { | |||
| 1281 | assert((!this->Target || this->Target == &Target) &&(static_cast <bool> ((!this->Target || this->Target == &Target) && "Incorrect target reinitialization" ) ? void (0) : __assert_fail ("(!this->Target || this->Target == &Target) && \"Incorrect target reinitialization\"" , "clang/lib/AST/ASTContext.cpp", 1282, __extension__ __PRETTY_FUNCTION__ )) | |||
| 1282 | "Incorrect target reinitialization")(static_cast <bool> ((!this->Target || this->Target == &Target) && "Incorrect target reinitialization" ) ? void (0) : __assert_fail ("(!this->Target || this->Target == &Target) && \"Incorrect target reinitialization\"" , "clang/lib/AST/ASTContext.cpp", 1282, __extension__ __PRETTY_FUNCTION__ )); | |||
| 1283 | assert(VoidTy.isNull() && "Context reinitialized?")(static_cast <bool> (VoidTy.isNull() && "Context reinitialized?" ) ? void (0) : __assert_fail ("VoidTy.isNull() && \"Context reinitialized?\"" , "clang/lib/AST/ASTContext.cpp", 1283, __extension__ __PRETTY_FUNCTION__ )); | |||
| 1284 | ||||
| 1285 | this->Target = &Target; | |||
| 1286 | this->AuxTarget = AuxTarget; | |||
| 1287 | ||||
| 1288 | ABI.reset(createCXXABI(Target)); | |||
| 1289 | AddrSpaceMap = getAddressSpaceMap(Target, LangOpts); | |||
| 1290 | AddrSpaceMapMangling = isAddrSpaceMapManglingEnabled(Target, LangOpts); | |||
| 1291 | ||||
| 1292 | // C99 6.2.5p19. | |||
| 1293 | InitBuiltinType(VoidTy, BuiltinType::Void); | |||
| 1294 | ||||
| 1295 | // C99 6.2.5p2. | |||
| 1296 | InitBuiltinType(BoolTy, BuiltinType::Bool); | |||
| 1297 | // C99 6.2.5p3. | |||
| 1298 | if (LangOpts.CharIsSigned) | |||
| 1299 | InitBuiltinType(CharTy, BuiltinType::Char_S); | |||
| 1300 | else | |||
| 1301 | InitBuiltinType(CharTy, BuiltinType::Char_U); | |||
| 1302 | // C99 6.2.5p4. | |||
| 1303 | InitBuiltinType(SignedCharTy, BuiltinType::SChar); | |||
| 1304 | InitBuiltinType(ShortTy, BuiltinType::Short); | |||
| 1305 | InitBuiltinType(IntTy, BuiltinType::Int); | |||
| 1306 | InitBuiltinType(LongTy, BuiltinType::Long); | |||
| 1307 | InitBuiltinType(LongLongTy, BuiltinType::LongLong); | |||
| 1308 | ||||
| 1309 | // C99 6.2.5p6. | |||
| 1310 | InitBuiltinType(UnsignedCharTy, BuiltinType::UChar); | |||
| 1311 | InitBuiltinType(UnsignedShortTy, BuiltinType::UShort); | |||
| 1312 | InitBuiltinType(UnsignedIntTy, BuiltinType::UInt); | |||
| 1313 | InitBuiltinType(UnsignedLongTy, BuiltinType::ULong); | |||
| 1314 | InitBuiltinType(UnsignedLongLongTy, BuiltinType::ULongLong); | |||
| 1315 | ||||
| 1316 | // C99 6.2.5p10. | |||
| 1317 | InitBuiltinType(FloatTy, BuiltinType::Float); | |||
| 1318 | InitBuiltinType(DoubleTy, BuiltinType::Double); | |||
| 1319 | InitBuiltinType(LongDoubleTy, BuiltinType::LongDouble); | |||
| 1320 | ||||
| 1321 | // GNU extension, __float128 for IEEE quadruple precision | |||
| 1322 | InitBuiltinType(Float128Ty, BuiltinType::Float128); | |||
| 1323 | ||||
| 1324 | // __ibm128 for IBM extended precision | |||
| 1325 | InitBuiltinType(Ibm128Ty, BuiltinType::Ibm128); | |||
| 1326 | ||||
| 1327 | // C11 extension ISO/IEC TS 18661-3 | |||
| 1328 | InitBuiltinType(Float16Ty, BuiltinType::Float16); | |||
| 1329 | ||||
| 1330 | // ISO/IEC JTC1 SC22 WG14 N1169 Extension | |||
| 1331 | InitBuiltinType(ShortAccumTy, BuiltinType::ShortAccum); | |||
| 1332 | InitBuiltinType(AccumTy, BuiltinType::Accum); | |||
| 1333 | InitBuiltinType(LongAccumTy, BuiltinType::LongAccum); | |||
| 1334 | InitBuiltinType(UnsignedShortAccumTy, BuiltinType::UShortAccum); | |||
| 1335 | InitBuiltinType(UnsignedAccumTy, BuiltinType::UAccum); | |||
| 1336 | InitBuiltinType(UnsignedLongAccumTy, BuiltinType::ULongAccum); | |||
| 1337 | InitBuiltinType(ShortFractTy, BuiltinType::ShortFract); | |||
| 1338 | InitBuiltinType(FractTy, BuiltinType::Fract); | |||
| 1339 | InitBuiltinType(LongFractTy, BuiltinType::LongFract); | |||
| 1340 | InitBuiltinType(UnsignedShortFractTy, BuiltinType::UShortFract); | |||
| 1341 | InitBuiltinType(UnsignedFractTy, BuiltinType::UFract); | |||
| 1342 | InitBuiltinType(UnsignedLongFractTy, BuiltinType::ULongFract); | |||
| 1343 | InitBuiltinType(SatShortAccumTy, BuiltinType::SatShortAccum); | |||
| 1344 | InitBuiltinType(SatAccumTy, BuiltinType::SatAccum); | |||
| 1345 | InitBuiltinType(SatLongAccumTy, BuiltinType::SatLongAccum); | |||
| 1346 | InitBuiltinType(SatUnsignedShortAccumTy, BuiltinType::SatUShortAccum); | |||
| 1347 | InitBuiltinType(SatUnsignedAccumTy, BuiltinType::SatUAccum); | |||
| 1348 | InitBuiltinType(SatUnsignedLongAccumTy, BuiltinType::SatULongAccum); | |||
| 1349 | InitBuiltinType(SatShortFractTy, BuiltinType::SatShortFract); | |||
| 1350 | InitBuiltinType(SatFractTy, BuiltinType::SatFract); | |||
| 1351 | InitBuiltinType(SatLongFractTy, BuiltinType::SatLongFract); | |||
| 1352 | InitBuiltinType(SatUnsignedShortFractTy, BuiltinType::SatUShortFract); | |||
| 1353 | InitBuiltinType(SatUnsignedFractTy, BuiltinType::SatUFract); | |||
| 1354 | InitBuiltinType(SatUnsignedLongFractTy, BuiltinType::SatULongFract); | |||
| 1355 | ||||
| 1356 | // GNU extension, 128-bit integers. | |||
| 1357 | InitBuiltinType(Int128Ty, BuiltinType::Int128); | |||
| 1358 | InitBuiltinType(UnsignedInt128Ty, BuiltinType::UInt128); | |||
| 1359 | ||||
| 1360 | // C++ 3.9.1p5 | |||
| 1361 | if (TargetInfo::isTypeSigned(Target.getWCharType())) | |||
| 1362 | InitBuiltinType(WCharTy, BuiltinType::WChar_S); | |||
| 1363 | else // -fshort-wchar makes wchar_t be unsigned. | |||
| 1364 | InitBuiltinType(WCharTy, BuiltinType::WChar_U); | |||
| 1365 | if (LangOpts.CPlusPlus && LangOpts.WChar) | |||
| 1366 | WideCharTy = WCharTy; | |||
| 1367 | else { | |||
| 1368 | // C99 (or C++ using -fno-wchar). | |||
| 1369 | WideCharTy = getFromTargetType(Target.getWCharType()); | |||
| 1370 | } | |||
| 1371 | ||||
| 1372 | WIntTy = getFromTargetType(Target.getWIntType()); | |||
| 1373 | ||||
| 1374 | // C++20 (proposed) | |||
| 1375 | InitBuiltinType(Char8Ty, BuiltinType::Char8); | |||
| 1376 | ||||
| 1377 | if (LangOpts.CPlusPlus) // C++0x 3.9.1p5, extension for C++ | |||
| 1378 | InitBuiltinType(Char16Ty, BuiltinType::Char16); | |||
| 1379 | else // C99 | |||
| 1380 | Char16Ty = getFromTargetType(Target.getChar16Type()); | |||
| 1381 | ||||
| 1382 | if (LangOpts.CPlusPlus) // C++0x 3.9.1p5, extension for C++ | |||
| 1383 | InitBuiltinType(Char32Ty, BuiltinType::Char32); | |||
| 1384 | else // C99 | |||
| 1385 | Char32Ty = getFromTargetType(Target.getChar32Type()); | |||
| 1386 | ||||
| 1387 | // Placeholder type for type-dependent expressions whose type is | |||
| 1388 | // completely unknown. No code should ever check a type against | |||
| 1389 | // DependentTy and users should never see it; however, it is here to | |||
| 1390 | // help diagnose failures to properly check for type-dependent | |||
| 1391 | // expressions. | |||
| 1392 | InitBuiltinType(DependentTy, BuiltinType::Dependent); | |||
| 1393 | ||||
| 1394 | // Placeholder type for functions. | |||
| 1395 | InitBuiltinType(OverloadTy, BuiltinType::Overload); | |||
| 1396 | ||||
| 1397 | // Placeholder type for bound members. | |||
| 1398 | InitBuiltinType(BoundMemberTy, BuiltinType::BoundMember); | |||
| 1399 | ||||
| 1400 | // Placeholder type for pseudo-objects. | |||
| 1401 | InitBuiltinType(PseudoObjectTy, BuiltinType::PseudoObject); | |||
| 1402 | ||||
| 1403 | // "any" type; useful for debugger-like clients. | |||
| 1404 | InitBuiltinType(UnknownAnyTy, BuiltinType::UnknownAny); | |||
| 1405 | ||||
| 1406 | // Placeholder type for unbridged ARC casts. | |||
| 1407 | InitBuiltinType(ARCUnbridgedCastTy, BuiltinType::ARCUnbridgedCast); | |||
| 1408 | ||||
| 1409 | // Placeholder type for builtin functions. | |||
| 1410 | InitBuiltinType(BuiltinFnTy, BuiltinType::BuiltinFn); | |||
| 1411 | ||||
| 1412 | // Placeholder type for OMP array sections. | |||
| 1413 | if (LangOpts.OpenMP) { | |||
| 1414 | InitBuiltinType(OMPArraySectionTy, BuiltinType::OMPArraySection); | |||
| 1415 | InitBuiltinType(OMPArrayShapingTy, BuiltinType::OMPArrayShaping); | |||
| 1416 | InitBuiltinType(OMPIteratorTy, BuiltinType::OMPIterator); | |||
| 1417 | } | |||
| 1418 | if (LangOpts.MatrixTypes) | |||
| 1419 | InitBuiltinType(IncompleteMatrixIdxTy, BuiltinType::IncompleteMatrixIdx); | |||
| 1420 | ||||
| 1421 | // Builtin types for 'id', 'Class', and 'SEL'. | |||
| 1422 | InitBuiltinType(ObjCBuiltinIdTy, BuiltinType::ObjCId); | |||
| 1423 | InitBuiltinType(ObjCBuiltinClassTy, BuiltinType::ObjCClass); | |||
| 1424 | InitBuiltinType(ObjCBuiltinSelTy, BuiltinType::ObjCSel); | |||
| 1425 | ||||
| 1426 | if (LangOpts.OpenCL) { | |||
| 1427 | #define IMAGE_TYPE(ImgType, Id, SingletonId, Access, Suffix) \ | |||
| 1428 | InitBuiltinType(SingletonId, BuiltinType::Id); | |||
| 1429 | #include "clang/Basic/OpenCLImageTypes.def" | |||
| 1430 | ||||
| 1431 | InitBuiltinType(OCLSamplerTy, BuiltinType::OCLSampler); | |||
| 1432 | InitBuiltinType(OCLEventTy, BuiltinType::OCLEvent); | |||
| 1433 | InitBuiltinType(OCLClkEventTy, BuiltinType::OCLClkEvent); | |||
| 1434 | InitBuiltinType(OCLQueueTy, BuiltinType::OCLQueue); | |||
| 1435 | InitBuiltinType(OCLReserveIDTy, BuiltinType::OCLReserveID); | |||
| 1436 | ||||
| 1437 | #define EXT_OPAQUE_TYPE(ExtType, Id, Ext) \ | |||
| 1438 | InitBuiltinType(Id##Ty, BuiltinType::Id); | |||
| 1439 | #include "clang/Basic/OpenCLExtensionTypes.def" | |||
| 1440 | } | |||
| 1441 | ||||
| 1442 | if (Target.hasAArch64SVETypes()) { | |||
| 1443 | #define SVE_TYPE(Name, Id, SingletonId) \ | |||
| 1444 | InitBuiltinType(SingletonId, BuiltinType::Id); | |||
| 1445 | #include "clang/Basic/AArch64SVEACLETypes.def" | |||
| 1446 | } | |||
| 1447 | ||||
| 1448 | if (Target.getTriple().isPPC64()) { | |||
| 1449 | #define PPC_VECTOR_MMA_TYPE(Name, Id, Size) \ | |||
| 1450 | InitBuiltinType(Id##Ty, BuiltinType::Id); | |||
| 1451 | #include "clang/Basic/PPCTypes.def" | |||
| 1452 | #define PPC_VECTOR_VSX_TYPE(Name, Id, Size) \ | |||
| 1453 | InitBuiltinType(Id##Ty, BuiltinType::Id); | |||
| 1454 | #include "clang/Basic/PPCTypes.def" | |||
| 1455 | } | |||
| 1456 | ||||
| 1457 | if (Target.hasRISCVVTypes()) { | |||
| 1458 | #define RVV_TYPE(Name, Id, SingletonId) \ | |||
| 1459 | InitBuiltinType(SingletonId, BuiltinType::Id); | |||
| 1460 | #include "clang/Basic/RISCVVTypes.def" | |||
| 1461 | } | |||
| 1462 | ||||
| 1463 | // Builtin type for __objc_yes and __objc_no | |||
| 1464 | ObjCBuiltinBoolTy = (Target.useSignedCharForObjCBool() ? | |||
| 1465 | SignedCharTy : BoolTy); | |||
| 1466 | ||||
| 1467 | ObjCConstantStringType = QualType(); | |||
| 1468 | ||||
| 1469 | ObjCSuperType = QualType(); | |||
| 1470 | ||||
| 1471 | // void * type | |||
| 1472 | if (LangOpts.OpenCLGenericAddressSpace) { | |||
| 1473 | auto Q = VoidTy.getQualifiers(); | |||
| 1474 | Q.setAddressSpace(LangAS::opencl_generic); | |||
| 1475 | VoidPtrTy = getPointerType(getCanonicalType( | |||
| 1476 | getQualifiedType(VoidTy.getUnqualifiedType(), Q))); | |||
| 1477 | } else { | |||
| 1478 | VoidPtrTy = getPointerType(VoidTy); | |||
| 1479 | } | |||
| 1480 | ||||
| 1481 | // nullptr type (C++0x 2.14.7) | |||
| 1482 | InitBuiltinType(NullPtrTy, BuiltinType::NullPtr); | |||
| 1483 | ||||
| 1484 | // half type (OpenCL 6.1.1.1) / ARM NEON __fp16 | |||
| 1485 | InitBuiltinType(HalfTy, BuiltinType::Half); | |||
| 1486 | ||||
| 1487 | InitBuiltinType(BFloat16Ty, BuiltinType::BFloat16); | |||
| 1488 | ||||
| 1489 | // Builtin type used to help define __builtin_va_list. | |||
| 1490 | VaListTagDecl = nullptr; | |||
| 1491 | ||||
| 1492 | // MSVC predeclares struct _GUID, and we need it to create MSGuidDecls. | |||
| 1493 | if (LangOpts.MicrosoftExt || LangOpts.Borland) { | |||
| 1494 | MSGuidTagDecl = buildImplicitRecord("_GUID"); | |||
| 1495 | getTranslationUnitDecl()->addDecl(MSGuidTagDecl); | |||
| 1496 | } | |||
| 1497 | } | |||
| 1498 | ||||
| 1499 | DiagnosticsEngine &ASTContext::getDiagnostics() const { | |||
| 1500 | return SourceMgr.getDiagnostics(); | |||
| 1501 | } | |||
| 1502 | ||||
| 1503 | AttrVec& ASTContext::getDeclAttrs(const Decl *D) { | |||
| 1504 | AttrVec *&Result = DeclAttrs[D]; | |||
| 1505 | if (!Result) { | |||
| 1506 | void *Mem = Allocate(sizeof(AttrVec)); | |||
| 1507 | Result = new (Mem) AttrVec; | |||
| 1508 | } | |||
| 1509 | ||||
| 1510 | return *Result; | |||
| 1511 | } | |||
| 1512 | ||||
| 1513 | /// Erase the attributes corresponding to the given declaration. | |||
| 1514 | void ASTContext::eraseDeclAttrs(const Decl *D) { | |||
| 1515 | llvm::DenseMap<const Decl*, AttrVec*>::iterator Pos = DeclAttrs.find(D); | |||
| 1516 | if (Pos != DeclAttrs.end()) { | |||
| 1517 | Pos->second->~AttrVec(); | |||
| 1518 | DeclAttrs.erase(Pos); | |||
| 1519 | } | |||
| 1520 | } | |||
| 1521 | ||||
| 1522 | // FIXME: Remove ? | |||
| 1523 | MemberSpecializationInfo * | |||
| 1524 | ASTContext::getInstantiatedFromStaticDataMember(const VarDecl *Var) { | |||
| 1525 | assert(Var->isStaticDataMember() && "Not a static data member")(static_cast <bool> (Var->isStaticDataMember() && "Not a static data member") ? void (0) : __assert_fail ("Var->isStaticDataMember() && \"Not a static data member\"" , "clang/lib/AST/ASTContext.cpp", 1525, __extension__ __PRETTY_FUNCTION__ )); | |||
| 1526 | return getTemplateOrSpecializationInfo(Var) | |||
| 1527 | .dyn_cast<MemberSpecializationInfo *>(); | |||
| 1528 | } | |||
| 1529 | ||||
| 1530 | ASTContext::TemplateOrSpecializationInfo | |||
| 1531 | ASTContext::getTemplateOrSpecializationInfo(const VarDecl *Var) { | |||
| 1532 | llvm::DenseMap<const VarDecl *, TemplateOrSpecializationInfo>::iterator Pos = | |||
| 1533 | TemplateOrInstantiation.find(Var); | |||
| 1534 | if (Pos == TemplateOrInstantiation.end()) | |||
| 1535 | return {}; | |||
| 1536 | ||||
| 1537 | return Pos->second; | |||
| 1538 | } | |||
| 1539 | ||||
| 1540 | void | |||
| 1541 | ASTContext::setInstantiatedFromStaticDataMember(VarDecl *Inst, VarDecl *Tmpl, | |||
| 1542 | TemplateSpecializationKind TSK, | |||
| 1543 | SourceLocation PointOfInstantiation) { | |||
| 1544 | assert(Inst->isStaticDataMember() && "Not a static data member")(static_cast <bool> (Inst->isStaticDataMember() && "Not a static data member") ? void (0) : __assert_fail ("Inst->isStaticDataMember() && \"Not a static data member\"" , "clang/lib/AST/ASTContext.cpp", 1544, __extension__ __PRETTY_FUNCTION__ )); | |||
| 1545 | assert(Tmpl->isStaticDataMember() && "Not a static data member")(static_cast <bool> (Tmpl->isStaticDataMember() && "Not a static data member") ? void (0) : __assert_fail ("Tmpl->isStaticDataMember() && \"Not a static data member\"" , "clang/lib/AST/ASTContext.cpp", 1545, __extension__ __PRETTY_FUNCTION__ )); | |||
| 1546 | setTemplateOrSpecializationInfo(Inst, new (*this) MemberSpecializationInfo( | |||
| 1547 | Tmpl, TSK, PointOfInstantiation)); | |||
| 1548 | } | |||
| 1549 | ||||
| 1550 | void | |||
| 1551 | ASTContext::setTemplateOrSpecializationInfo(VarDecl *Inst, | |||
| 1552 | TemplateOrSpecializationInfo TSI) { | |||
| 1553 | assert(!TemplateOrInstantiation[Inst] &&(static_cast <bool> (!TemplateOrInstantiation[Inst] && "Already noted what the variable was instantiated from") ? void (0) : __assert_fail ("!TemplateOrInstantiation[Inst] && \"Already noted what the variable was instantiated from\"" , "clang/lib/AST/ASTContext.cpp", 1554, __extension__ __PRETTY_FUNCTION__ )) | |||
| 1554 | "Already noted what the variable was instantiated from")(static_cast <bool> (!TemplateOrInstantiation[Inst] && "Already noted what the variable was instantiated from") ? void (0) : __assert_fail ("!TemplateOrInstantiation[Inst] && \"Already noted what the variable was instantiated from\"" , "clang/lib/AST/ASTContext.cpp", 1554, __extension__ __PRETTY_FUNCTION__ )); | |||
| 1555 | TemplateOrInstantiation[Inst] = TSI; | |||
| 1556 | } | |||
| 1557 | ||||
| 1558 | NamedDecl * | |||
| 1559 | ASTContext::getInstantiatedFromUsingDecl(NamedDecl *UUD) { | |||
| 1560 | auto Pos = InstantiatedFromUsingDecl.find(UUD); | |||
| 1561 | if (Pos == InstantiatedFromUsingDecl.end()) | |||
| 1562 | return nullptr; | |||
| 1563 | ||||
| 1564 | return Pos->second; | |||
| 1565 | } | |||
| 1566 | ||||
| 1567 | void | |||
| 1568 | ASTContext::setInstantiatedFromUsingDecl(NamedDecl *Inst, NamedDecl *Pattern) { | |||
| 1569 | assert((isa<UsingDecl>(Pattern) ||(static_cast <bool> ((isa<UsingDecl>(Pattern) || isa <UnresolvedUsingValueDecl>(Pattern) || isa<UnresolvedUsingTypenameDecl >(Pattern)) && "pattern decl is not a using decl") ? void (0) : __assert_fail ("(isa<UsingDecl>(Pattern) || isa<UnresolvedUsingValueDecl>(Pattern) || isa<UnresolvedUsingTypenameDecl>(Pattern)) && \"pattern decl is not a using decl\"" , "clang/lib/AST/ASTContext.cpp", 1572, __extension__ __PRETTY_FUNCTION__ )) | |||
| 1570 | isa<UnresolvedUsingValueDecl>(Pattern) ||(static_cast <bool> ((isa<UsingDecl>(Pattern) || isa <UnresolvedUsingValueDecl>(Pattern) || isa<UnresolvedUsingTypenameDecl >(Pattern)) && "pattern decl is not a using decl") ? void (0) : __assert_fail ("(isa<UsingDecl>(Pattern) || isa<UnresolvedUsingValueDecl>(Pattern) || isa<UnresolvedUsingTypenameDecl>(Pattern)) && \"pattern decl is not a using decl\"" , "clang/lib/AST/ASTContext.cpp", 1572, __extension__ __PRETTY_FUNCTION__ )) | |||
| 1571 | isa<UnresolvedUsingTypenameDecl>(Pattern)) &&(static_cast <bool> ((isa<UsingDecl>(Pattern) || isa <UnresolvedUsingValueDecl>(Pattern) || isa<UnresolvedUsingTypenameDecl >(Pattern)) && "pattern decl is not a using decl") ? void (0) : __assert_fail ("(isa<UsingDecl>(Pattern) || isa<UnresolvedUsingValueDecl>(Pattern) || isa<UnresolvedUsingTypenameDecl>(Pattern)) && \"pattern decl is not a using decl\"" , "clang/lib/AST/ASTContext.cpp", 1572, __extension__ __PRETTY_FUNCTION__ )) | |||
| 1572 | "pattern decl is not a using decl")(static_cast <bool> ((isa<UsingDecl>(Pattern) || isa <UnresolvedUsingValueDecl>(Pattern) || isa<UnresolvedUsingTypenameDecl >(Pattern)) && "pattern decl is not a using decl") ? void (0) : __assert_fail ("(isa<UsingDecl>(Pattern) || isa<UnresolvedUsingValueDecl>(Pattern) || isa<UnresolvedUsingTypenameDecl>(Pattern)) && \"pattern decl is not a using decl\"" , "clang/lib/AST/ASTContext.cpp", 1572, __extension__ __PRETTY_FUNCTION__ )); | |||
| 1573 | assert((isa<UsingDecl>(Inst) ||(static_cast <bool> ((isa<UsingDecl>(Inst) || isa <UnresolvedUsingValueDecl>(Inst) || isa<UnresolvedUsingTypenameDecl >(Inst)) && "instantiation did not produce a using decl" ) ? void (0) : __assert_fail ("(isa<UsingDecl>(Inst) || isa<UnresolvedUsingValueDecl>(Inst) || isa<UnresolvedUsingTypenameDecl>(Inst)) && \"instantiation did not produce a using decl\"" , "clang/lib/AST/ASTContext.cpp", 1576, __extension__ __PRETTY_FUNCTION__ )) | |||
| 1574 | isa<UnresolvedUsingValueDecl>(Inst) ||(static_cast <bool> ((isa<UsingDecl>(Inst) || isa <UnresolvedUsingValueDecl>(Inst) || isa<UnresolvedUsingTypenameDecl >(Inst)) && "instantiation did not produce a using decl" ) ? void (0) : __assert_fail ("(isa<UsingDecl>(Inst) || isa<UnresolvedUsingValueDecl>(Inst) || isa<UnresolvedUsingTypenameDecl>(Inst)) && \"instantiation did not produce a using decl\"" , "clang/lib/AST/ASTContext.cpp", 1576, __extension__ __PRETTY_FUNCTION__ )) | |||
| 1575 | isa<UnresolvedUsingTypenameDecl>(Inst)) &&(static_cast <bool> ((isa<UsingDecl>(Inst) || isa <UnresolvedUsingValueDecl>(Inst) || isa<UnresolvedUsingTypenameDecl >(Inst)) && "instantiation did not produce a using decl" ) ? void (0) : __assert_fail ("(isa<UsingDecl>(Inst) || isa<UnresolvedUsingValueDecl>(Inst) || isa<UnresolvedUsingTypenameDecl>(Inst)) && \"instantiation did not produce a using decl\"" , "clang/lib/AST/ASTContext.cpp", 1576, __extension__ __PRETTY_FUNCTION__ )) | |||
| 1576 | "instantiation did not produce a using decl")(static_cast <bool> ((isa<UsingDecl>(Inst) || isa <UnresolvedUsingValueDecl>(Inst) || isa<UnresolvedUsingTypenameDecl >(Inst)) && "instantiation did not produce a using decl" ) ? void (0) : __assert_fail ("(isa<UsingDecl>(Inst) || isa<UnresolvedUsingValueDecl>(Inst) || isa<UnresolvedUsingTypenameDecl>(Inst)) && \"instantiation did not produce a using decl\"" , "clang/lib/AST/ASTContext.cpp", 1576, __extension__ __PRETTY_FUNCTION__ )); | |||
| 1577 | assert(!InstantiatedFromUsingDecl[Inst] && "pattern already exists")(static_cast <bool> (!InstantiatedFromUsingDecl[Inst] && "pattern already exists") ? void (0) : __assert_fail ("!InstantiatedFromUsingDecl[Inst] && \"pattern already exists\"" , "clang/lib/AST/ASTContext.cpp", 1577, __extension__ __PRETTY_FUNCTION__ )); | |||
| 1578 | InstantiatedFromUsingDecl[Inst] = Pattern; | |||
| 1579 | } | |||
| 1580 | ||||
| 1581 | UsingEnumDecl * | |||
| 1582 | ASTContext::getInstantiatedFromUsingEnumDecl(UsingEnumDecl *UUD) { | |||
| 1583 | auto Pos = InstantiatedFromUsingEnumDecl.find(UUD); | |||
| 1584 | if (Pos == InstantiatedFromUsingEnumDecl.end()) | |||
| 1585 | return nullptr; | |||
| 1586 | ||||
| 1587 | return Pos->second; | |||
| 1588 | } | |||
| 1589 | ||||
| 1590 | void ASTContext::setInstantiatedFromUsingEnumDecl(UsingEnumDecl *Inst, | |||
| 1591 | UsingEnumDecl *Pattern) { | |||
| 1592 | assert(!InstantiatedFromUsingEnumDecl[Inst] && "pattern already exists")(static_cast <bool> (!InstantiatedFromUsingEnumDecl[Inst ] && "pattern already exists") ? void (0) : __assert_fail ("!InstantiatedFromUsingEnumDecl[Inst] && \"pattern already exists\"" , "clang/lib/AST/ASTContext.cpp", 1592, __extension__ __PRETTY_FUNCTION__ )); | |||
| 1593 | InstantiatedFromUsingEnumDecl[Inst] = Pattern; | |||
| 1594 | } | |||
| 1595 | ||||
| 1596 | UsingShadowDecl * | |||
| 1597 | ASTContext::getInstantiatedFromUsingShadowDecl(UsingShadowDecl *Inst) { | |||
| 1598 | llvm::DenseMap<UsingShadowDecl*, UsingShadowDecl*>::const_iterator Pos | |||
| 1599 | = InstantiatedFromUsingShadowDecl.find(Inst); | |||
| 1600 | if (Pos == InstantiatedFromUsingShadowDecl.end()) | |||
| 1601 | return nullptr; | |||
| 1602 | ||||
| 1603 | return Pos->second; | |||
| 1604 | } | |||
| 1605 | ||||
| 1606 | void | |||
| 1607 | ASTContext::setInstantiatedFromUsingShadowDecl(UsingShadowDecl *Inst, | |||
| 1608 | UsingShadowDecl *Pattern) { | |||
| 1609 | assert(!InstantiatedFromUsingShadowDecl[Inst] && "pattern already exists")(static_cast <bool> (!InstantiatedFromUsingShadowDecl[Inst ] && "pattern already exists") ? void (0) : __assert_fail ("!InstantiatedFromUsingShadowDecl[Inst] && \"pattern already exists\"" , "clang/lib/AST/ASTContext.cpp", 1609, __extension__ __PRETTY_FUNCTION__ )); | |||
| 1610 | InstantiatedFromUsingShadowDecl[Inst] = Pattern; | |||
| 1611 | } | |||
| 1612 | ||||
| 1613 | FieldDecl *ASTContext::getInstantiatedFromUnnamedFieldDecl(FieldDecl *Field) { | |||
| 1614 | llvm::DenseMap<FieldDecl *, FieldDecl *>::iterator Pos | |||
| 1615 | = InstantiatedFromUnnamedFieldDecl.find(Field); | |||
| 1616 | if (Pos == InstantiatedFromUnnamedFieldDecl.end()) | |||
| 1617 | return nullptr; | |||
| 1618 | ||||
| 1619 | return Pos->second; | |||
| 1620 | } | |||
| 1621 | ||||
| 1622 | void ASTContext::setInstantiatedFromUnnamedFieldDecl(FieldDecl *Inst, | |||
| 1623 | FieldDecl *Tmpl) { | |||
| 1624 | assert(!Inst->getDeclName() && "Instantiated field decl is not unnamed")(static_cast <bool> (!Inst->getDeclName() && "Instantiated field decl is not unnamed") ? void (0) : __assert_fail ("!Inst->getDeclName() && \"Instantiated field decl is not unnamed\"" , "clang/lib/AST/ASTContext.cpp", 1624, __extension__ __PRETTY_FUNCTION__ )); | |||
| 1625 | assert(!Tmpl->getDeclName() && "Template field decl is not unnamed")(static_cast <bool> (!Tmpl->getDeclName() && "Template field decl is not unnamed") ? void (0) : __assert_fail ("!Tmpl->getDeclName() && \"Template field decl is not unnamed\"" , "clang/lib/AST/ASTContext.cpp", 1625, __extension__ __PRETTY_FUNCTION__ )); | |||
| 1626 | assert(!InstantiatedFromUnnamedFieldDecl[Inst] &&(static_cast <bool> (!InstantiatedFromUnnamedFieldDecl[ Inst] && "Already noted what unnamed field was instantiated from" ) ? void (0) : __assert_fail ("!InstantiatedFromUnnamedFieldDecl[Inst] && \"Already noted what unnamed field was instantiated from\"" , "clang/lib/AST/ASTContext.cpp", 1627, __extension__ __PRETTY_FUNCTION__ )) | |||
| 1627 | "Already noted what unnamed field was instantiated from")(static_cast <bool> (!InstantiatedFromUnnamedFieldDecl[ Inst] && "Already noted what unnamed field was instantiated from" ) ? void (0) : __assert_fail ("!InstantiatedFromUnnamedFieldDecl[Inst] && \"Already noted what unnamed field was instantiated from\"" , "clang/lib/AST/ASTContext.cpp", 1627, __extension__ __PRETTY_FUNCTION__ )); | |||
| 1628 | ||||
| 1629 | InstantiatedFromUnnamedFieldDecl[Inst] = Tmpl; | |||
| 1630 | } | |||
| 1631 | ||||
| 1632 | ASTContext::overridden_cxx_method_iterator | |||
| 1633 | ASTContext::overridden_methods_begin(const CXXMethodDecl *Method) const { | |||
| 1634 | return overridden_methods(Method).begin(); | |||
| 1635 | } | |||
| 1636 | ||||
| 1637 | ASTContext::overridden_cxx_method_iterator | |||
| 1638 | ASTContext::overridden_methods_end(const CXXMethodDecl *Method) const { | |||
| 1639 | return overridden_methods(Method).end(); | |||
| 1640 | } | |||
| 1641 | ||||
| 1642 | unsigned | |||
| 1643 | ASTContext::overridden_methods_size(const CXXMethodDecl *Method) const { | |||
| 1644 | auto Range = overridden_methods(Method); | |||
| 1645 | return Range.end() - Range.begin(); | |||
| 1646 | } | |||
| 1647 | ||||
| 1648 | ASTContext::overridden_method_range | |||
| 1649 | ASTContext::overridden_methods(const CXXMethodDecl *Method) const { | |||
| 1650 | llvm::DenseMap<const CXXMethodDecl *, CXXMethodVector>::const_iterator Pos = | |||
| 1651 | OverriddenMethods.find(Method->getCanonicalDecl()); | |||
| 1652 | if (Pos == OverriddenMethods.end()) | |||
| 1653 | return overridden_method_range(nullptr, nullptr); | |||
| 1654 | return overridden_method_range(Pos->second.begin(), Pos->second.end()); | |||
| 1655 | } | |||
| 1656 | ||||
| 1657 | void ASTContext::addOverriddenMethod(const CXXMethodDecl *Method, | |||
| 1658 | const CXXMethodDecl *Overridden) { | |||
| 1659 | assert(Method->isCanonicalDecl() && Overridden->isCanonicalDecl())(static_cast <bool> (Method->isCanonicalDecl() && Overridden->isCanonicalDecl()) ? void (0) : __assert_fail ("Method->isCanonicalDecl() && Overridden->isCanonicalDecl()" , "clang/lib/AST/ASTContext.cpp", 1659, __extension__ __PRETTY_FUNCTION__ )); | |||
| 1660 | OverriddenMethods[Method].push_back(Overridden); | |||
| 1661 | } | |||
| 1662 | ||||
| 1663 | void ASTContext::getOverriddenMethods( | |||
| 1664 | const NamedDecl *D, | |||
| 1665 | SmallVectorImpl<const NamedDecl *> &Overridden) const { | |||
| 1666 | assert(D)(static_cast <bool> (D) ? void (0) : __assert_fail ("D" , "clang/lib/AST/ASTContext.cpp", 1666, __extension__ __PRETTY_FUNCTION__ )); | |||
| 1667 | ||||
| 1668 | if (const auto *CXXMethod = dyn_cast<CXXMethodDecl>(D)) { | |||
| 1669 | Overridden.append(overridden_methods_begin(CXXMethod), | |||
| 1670 | overridden_methods_end(CXXMethod)); | |||
| 1671 | return; | |||
| 1672 | } | |||
| 1673 | ||||
| 1674 | const auto *Method = dyn_cast<ObjCMethodDecl>(D); | |||
| 1675 | if (!Method) | |||
| 1676 | return; | |||
| 1677 | ||||
| 1678 | SmallVector<const ObjCMethodDecl *, 8> OverDecls; | |||
| 1679 | Method->getOverriddenMethods(OverDecls); | |||
| 1680 | Overridden.append(OverDecls.begin(), OverDecls.end()); | |||
| 1681 | } | |||
| 1682 | ||||
| 1683 | void ASTContext::addedLocalImportDecl(ImportDecl *Import) { | |||
| 1684 | assert(!Import->getNextLocalImport() &&(static_cast <bool> (!Import->getNextLocalImport() && "Import declaration already in the chain") ? void (0) : __assert_fail ("!Import->getNextLocalImport() && \"Import declaration already in the chain\"" , "clang/lib/AST/ASTContext.cpp", 1685, __extension__ __PRETTY_FUNCTION__ )) | |||
| 1685 | "Import declaration already in the chain")(static_cast <bool> (!Import->getNextLocalImport() && "Import declaration already in the chain") ? void (0) : __assert_fail ("!Import->getNextLocalImport() && \"Import declaration already in the chain\"" , "clang/lib/AST/ASTContext.cpp", 1685, __extension__ __PRETTY_FUNCTION__ )); | |||
| 1686 | assert(!Import->isFromASTFile() && "Non-local import declaration")(static_cast <bool> (!Import->isFromASTFile() && "Non-local import declaration") ? void (0) : __assert_fail ( "!Import->isFromASTFile() && \"Non-local import declaration\"" , "clang/lib/AST/ASTContext.cpp", 1686, __extension__ __PRETTY_FUNCTION__ )); | |||
| 1687 | if (!FirstLocalImport) { | |||
| 1688 | FirstLocalImport = Import; | |||
| 1689 | LastLocalImport = Import; | |||
| 1690 | return; | |||
| 1691 | } | |||
| 1692 | ||||
| 1693 | LastLocalImport->setNextLocalImport(Import); | |||
| 1694 | LastLocalImport = Import; | |||
| 1695 | } | |||
| 1696 | ||||
| 1697 | //===----------------------------------------------------------------------===// | |||
| 1698 | // Type Sizing and Analysis | |||
| 1699 | //===----------------------------------------------------------------------===// | |||
| 1700 | ||||
| 1701 | /// getFloatTypeSemantics - Return the APFloat 'semantics' for the specified | |||
| 1702 | /// scalar floating point type. | |||
| 1703 | const llvm::fltSemantics &ASTContext::getFloatTypeSemantics(QualType T) const { | |||
| 1704 | switch (T->castAs<BuiltinType>()->getKind()) { | |||
| 1705 | default: | |||
| 1706 | llvm_unreachable("Not a floating point type!")::llvm::llvm_unreachable_internal("Not a floating point type!" , "clang/lib/AST/ASTContext.cpp", 1706); | |||
| 1707 | case BuiltinType::BFloat16: | |||
| 1708 | return Target->getBFloat16Format(); | |||
| 1709 | case BuiltinType::Float16: | |||
| 1710 | case BuiltinType::Half: | |||
| 1711 | return Target->getHalfFormat(); | |||
| 1712 | case BuiltinType::Float: return Target->getFloatFormat(); | |||
| 1713 | case BuiltinType::Double: return Target->getDoubleFormat(); | |||
| 1714 | case BuiltinType::Ibm128: | |||
| 1715 | return Target->getIbm128Format(); | |||
| 1716 | case BuiltinType::LongDouble: | |||
| 1717 | if (getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice) | |||
| 1718 | return AuxTarget->getLongDoubleFormat(); | |||
| 1719 | return Target->getLongDoubleFormat(); | |||
| 1720 | case BuiltinType::Float128: | |||
| 1721 | if (getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice) | |||
| 1722 | return AuxTarget->getFloat128Format(); | |||
| 1723 | return Target->getFloat128Format(); | |||
| 1724 | } | |||
| 1725 | } | |||
| 1726 | ||||
| 1727 | CharUnits ASTContext::getDeclAlign(const Decl *D, bool ForAlignof) const { | |||
| 1728 | unsigned Align = Target->getCharWidth(); | |||
| 1729 | ||||
| 1730 | bool UseAlignAttrOnly = false; | |||
| 1731 | if (unsigned AlignFromAttr = D->getMaxAlignment()) { | |||
| 1732 | Align = AlignFromAttr; | |||
| 1733 | ||||
| 1734 | // __attribute__((aligned)) can increase or decrease alignment | |||
| 1735 | // *except* on a struct or struct member, where it only increases | |||
| 1736 | // alignment unless 'packed' is also specified. | |||
| 1737 | // | |||
| 1738 | // It is an error for alignas to decrease alignment, so we can | |||
| 1739 | // ignore that possibility; Sema should diagnose it. | |||
| 1740 | if (isa<FieldDecl>(D)) { | |||
| 1741 | UseAlignAttrOnly = D->hasAttr<PackedAttr>() || | |||
| 1742 | cast<FieldDecl>(D)->getParent()->hasAttr<PackedAttr>(); | |||
| 1743 | } else { | |||
| 1744 | UseAlignAttrOnly = true; | |||
| 1745 | } | |||
| 1746 | } | |||
| 1747 | else if (isa<FieldDecl>(D)) | |||
| 1748 | UseAlignAttrOnly = | |||
| 1749 | D->hasAttr<PackedAttr>() || | |||
| 1750 | cast<FieldDecl>(D)->getParent()->hasAttr<PackedAttr>(); | |||
| 1751 | ||||
| 1752 | // If we're using the align attribute only, just ignore everything | |||
| 1753 | // else about the declaration and its type. | |||
| 1754 | if (UseAlignAttrOnly) { | |||
| 1755 | // do nothing | |||
| 1756 | } else if (const auto *VD = dyn_cast<ValueDecl>(D)) { | |||
| 1757 | QualType T = VD->getType(); | |||
| 1758 | if (const auto *RT = T->getAs<ReferenceType>()) { | |||
| 1759 | if (ForAlignof) | |||
| 1760 | T = RT->getPointeeType(); | |||
| 1761 | else | |||
| 1762 | T = getPointerType(RT->getPointeeType()); | |||
| 1763 | } | |||
| 1764 | QualType BaseT = getBaseElementType(T); | |||
| 1765 | if (T->isFunctionType()) | |||
| 1766 | Align = getTypeInfoImpl(T.getTypePtr()).Align; | |||
| 1767 | else if (!BaseT->isIncompleteType()) { | |||
| 1768 | // Adjust alignments of declarations with array type by the | |||
| 1769 | // large-array alignment on the target. | |||
| 1770 | if (const ArrayType *arrayType = getAsArrayType(T)) { | |||
| 1771 | unsigned MinWidth = Target->getLargeArrayMinWidth(); | |||
| 1772 | if (!ForAlignof && MinWidth) { | |||
| 1773 | if (isa<VariableArrayType>(arrayType)) | |||
| 1774 | Align = std::max(Align, Target->getLargeArrayAlign()); | |||
| 1775 | else if (isa<ConstantArrayType>(arrayType) && | |||
| 1776 | MinWidth <= getTypeSize(cast<ConstantArrayType>(arrayType))) | |||
| 1777 | Align = std::max(Align, Target->getLargeArrayAlign()); | |||
| 1778 | } | |||
| 1779 | } | |||
| 1780 | Align = std::max(Align, getPreferredTypeAlign(T.getTypePtr())); | |||
| 1781 | if (BaseT.getQualifiers().hasUnaligned()) | |||
| 1782 | Align = Target->getCharWidth(); | |||
| 1783 | if (const auto *VD = dyn_cast<VarDecl>(D)) { | |||
| 1784 | if (VD->hasGlobalStorage() && !ForAlignof) { | |||
| 1785 | uint64_t TypeSize = getTypeSize(T.getTypePtr()); | |||
| 1786 | Align = std::max(Align, getTargetInfo().getMinGlobalAlign(TypeSize)); | |||
| 1787 | } | |||
| 1788 | } | |||
| 1789 | } | |||
| 1790 | ||||
| 1791 | // Fields can be subject to extra alignment constraints, like if | |||
| 1792 | // the field is packed, the struct is packed, or the struct has a | |||
| 1793 | // a max-field-alignment constraint (#pragma pack). So calculate | |||
| 1794 | // the actual alignment of the field within the struct, and then | |||
| 1795 | // (as we're expected to) constrain that by the alignment of the type. | |||
| 1796 | if (const auto *Field = dyn_cast<FieldDecl>(VD)) { | |||
| 1797 | const RecordDecl *Parent = Field->getParent(); | |||
| 1798 | // We can only produce a sensible answer if the record is valid. | |||
| 1799 | if (!Parent->isInvalidDecl()) { | |||
| 1800 | const ASTRecordLayout &Layout = getASTRecordLayout(Parent); | |||
| 1801 | ||||
| 1802 | // Start with the record's overall alignment. | |||
| 1803 | unsigned FieldAlign = toBits(Layout.getAlignment()); | |||
| 1804 | ||||
| 1805 | // Use the GCD of that and the offset within the record. | |||
| 1806 | uint64_t Offset = Layout.getFieldOffset(Field->getFieldIndex()); | |||
| 1807 | if (Offset > 0) { | |||
| 1808 | // Alignment is always a power of 2, so the GCD will be a power of 2, | |||
| 1809 | // which means we get to do this crazy thing instead of Euclid's. | |||
| 1810 | uint64_t LowBitOfOffset = Offset & (~Offset + 1); | |||
| 1811 | if (LowBitOfOffset < FieldAlign) | |||
| 1812 | FieldAlign = static_cast<unsigned>(LowBitOfOffset); | |||
| 1813 | } | |||
| 1814 | ||||
| 1815 | Align = std::min(Align, FieldAlign); | |||
| 1816 | } | |||
| 1817 | } | |||
| 1818 | } | |||
| 1819 | ||||
| 1820 | // Some targets have hard limitation on the maximum requestable alignment in | |||
| 1821 | // aligned attribute for static variables. | |||
| 1822 | const unsigned MaxAlignedAttr = getTargetInfo().getMaxAlignedAttribute(); | |||
| 1823 | const auto *VD = dyn_cast<VarDecl>(D); | |||
| 1824 | if (MaxAlignedAttr && VD && VD->getStorageClass() == SC_Static) | |||
| 1825 | Align = std::min(Align, MaxAlignedAttr); | |||
| 1826 | ||||
| 1827 | return toCharUnitsFromBits(Align); | |||
| 1828 | } | |||
| 1829 | ||||
| 1830 | CharUnits ASTContext::getExnObjectAlignment() const { | |||
| 1831 | return toCharUnitsFromBits(Target->getExnObjectAlignment()); | |||
| 1832 | } | |||
| 1833 | ||||
| 1834 | // getTypeInfoDataSizeInChars - Return the size of a type, in | |||
| 1835 | // chars. If the type is a record, its data size is returned. This is | |||
| 1836 | // the size of the memcpy that's performed when assigning this type | |||
| 1837 | // using a trivial copy/move assignment operator. | |||
| 1838 | TypeInfoChars ASTContext::getTypeInfoDataSizeInChars(QualType T) const { | |||
| 1839 | TypeInfoChars Info = getTypeInfoInChars(T); | |||
| 1840 | ||||
| 1841 | // In C++, objects can sometimes be allocated into the tail padding | |||
| 1842 | // of a base-class subobject. We decide whether that's possible | |||
| 1843 | // during class layout, so here we can just trust the layout results. | |||
| 1844 | if (getLangOpts().CPlusPlus) { | |||
| 1845 | if (const auto *RT = T->getAs<RecordType>()) { | |||
| 1846 | const ASTRecordLayout &layout = getASTRecordLayout(RT->getDecl()); | |||
| 1847 | Info.Width = layout.getDataSize(); | |||
| 1848 | } | |||
| 1849 | } | |||
| 1850 | ||||
| 1851 | return Info; | |||
| 1852 | } | |||
| 1853 | ||||
| 1854 | /// getConstantArrayInfoInChars - Performing the computation in CharUnits | |||
| 1855 | /// instead of in bits prevents overflowing the uint64_t for some large arrays. | |||
| 1856 | TypeInfoChars | |||
| 1857 | static getConstantArrayInfoInChars(const ASTContext &Context, | |||
| 1858 | const ConstantArrayType *CAT) { | |||
| 1859 | TypeInfoChars EltInfo = Context.getTypeInfoInChars(CAT->getElementType()); | |||
| 1860 | uint64_t Size = CAT->getSize().getZExtValue(); | |||
| 1861 | assert((Size == 0 || static_cast<uint64_t>(EltInfo.Width.getQuantity()) <=(static_cast <bool> ((Size == 0 || static_cast<uint64_t >(EltInfo.Width.getQuantity()) <= (uint64_t)(-1)/Size) && "Overflow in array type char size evaluation") ? void (0) : __assert_fail ("(Size == 0 || static_cast<uint64_t>(EltInfo.Width.getQuantity()) <= (uint64_t)(-1)/Size) && \"Overflow in array type char size evaluation\"" , "clang/lib/AST/ASTContext.cpp", 1863, __extension__ __PRETTY_FUNCTION__ )) | |||
| 1862 | (uint64_t)(-1)/Size) &&(static_cast <bool> ((Size == 0 || static_cast<uint64_t >(EltInfo.Width.getQuantity()) <= (uint64_t)(-1)/Size) && "Overflow in array type char size evaluation") ? void (0) : __assert_fail ("(Size == 0 || static_cast<uint64_t>(EltInfo.Width.getQuantity()) <= (uint64_t)(-1)/Size) && \"Overflow in array type char size evaluation\"" , "clang/lib/AST/ASTContext.cpp", 1863, __extension__ __PRETTY_FUNCTION__ )) | |||
| 1863 | "Overflow in array type char size evaluation")(static_cast <bool> ((Size == 0 || static_cast<uint64_t >(EltInfo.Width.getQuantity()) <= (uint64_t)(-1)/Size) && "Overflow in array type char size evaluation") ? void (0) : __assert_fail ("(Size == 0 || static_cast<uint64_t>(EltInfo.Width.getQuantity()) <= (uint64_t)(-1)/Size) && \"Overflow in array type char size evaluation\"" , "clang/lib/AST/ASTContext.cpp", 1863, __extension__ __PRETTY_FUNCTION__ )); | |||
| 1864 | uint64_t Width = EltInfo.Width.getQuantity() * Size; | |||
| 1865 | unsigned Align = EltInfo.Align.getQuantity(); | |||
| 1866 | if (!Context.getTargetInfo().getCXXABI().isMicrosoft() || | |||
| 1867 | Context.getTargetInfo().getPointerWidth(0) == 64) | |||
| 1868 | Width = llvm::alignTo(Width, Align); | |||
| 1869 | return TypeInfoChars(CharUnits::fromQuantity(Width), | |||
| 1870 | CharUnits::fromQuantity(Align), | |||
| 1871 | EltInfo.AlignRequirement); | |||
| 1872 | } | |||
| 1873 | ||||
| 1874 | TypeInfoChars ASTContext::getTypeInfoInChars(const Type *T) const { | |||
| 1875 | if (const auto *CAT = dyn_cast<ConstantArrayType>(T)) | |||
| 1876 | return getConstantArrayInfoInChars(*this, CAT); | |||
| 1877 | TypeInfo Info = getTypeInfo(T); | |||
| 1878 | return TypeInfoChars(toCharUnitsFromBits(Info.Width), | |||
| 1879 | toCharUnitsFromBits(Info.Align), Info.AlignRequirement); | |||
| 1880 | } | |||
| 1881 | ||||
| 1882 | TypeInfoChars ASTContext::getTypeInfoInChars(QualType T) const { | |||
| 1883 | return getTypeInfoInChars(T.getTypePtr()); | |||
| 1884 | } | |||
| 1885 | ||||
| 1886 | bool ASTContext::isAlignmentRequired(const Type *T) const { | |||
| 1887 | return getTypeInfo(T).AlignRequirement != AlignRequirementKind::None; | |||
| 1888 | } | |||
| 1889 | ||||
| 1890 | bool ASTContext::isAlignmentRequired(QualType T) const { | |||
| 1891 | return isAlignmentRequired(T.getTypePtr()); | |||
| 1892 | } | |||
| 1893 | ||||
| 1894 | unsigned ASTContext::getTypeAlignIfKnown(QualType T, | |||
| 1895 | bool NeedsPreferredAlignment) const { | |||
| 1896 | // An alignment on a typedef overrides anything else. | |||
| 1897 | if (const auto *TT = T->getAs<TypedefType>()) | |||
| 1898 | if (unsigned Align = TT->getDecl()->getMaxAlignment()) | |||
| 1899 | return Align; | |||
| 1900 | ||||
| 1901 | // If we have an (array of) complete type, we're done. | |||
| 1902 | T = getBaseElementType(T); | |||
| 1903 | if (!T->isIncompleteType()) | |||
| 1904 | return NeedsPreferredAlignment ? getPreferredTypeAlign(T) : getTypeAlign(T); | |||
| 1905 | ||||
| 1906 | // If we had an array type, its element type might be a typedef | |||
| 1907 | // type with an alignment attribute. | |||
| 1908 | if (const auto *TT = T->getAs<TypedefType>()) | |||
| 1909 | if (unsigned Align = TT->getDecl()->getMaxAlignment()) | |||
| 1910 | return Align; | |||
| 1911 | ||||
| 1912 | // Otherwise, see if the declaration of the type had an attribute. | |||
| 1913 | if (const auto *TT = T->getAs<TagType>()) | |||
| 1914 | return TT->getDecl()->getMaxAlignment(); | |||
| 1915 | ||||
| 1916 | return 0; | |||
| 1917 | } | |||
| 1918 | ||||
| 1919 | TypeInfo ASTContext::getTypeInfo(const Type *T) const { | |||
| 1920 | TypeInfoMap::iterator I = MemoizedTypeInfo.find(T); | |||
| 1921 | if (I != MemoizedTypeInfo.end()) | |||
| 1922 | return I->second; | |||
| 1923 | ||||
| 1924 | // This call can invalidate MemoizedTypeInfo[T], so we need a second lookup. | |||
| 1925 | TypeInfo TI = getTypeInfoImpl(T); | |||
| 1926 | MemoizedTypeInfo[T] = TI; | |||
| 1927 | return TI; | |||
| 1928 | } | |||
| 1929 | ||||
| 1930 | /// getTypeInfoImpl - Return the size of the specified type, in bits. This | |||
| 1931 | /// method does not work on incomplete types. | |||
| 1932 | /// | |||
| 1933 | /// FIXME: Pointers into different addr spaces could have different sizes and | |||
| 1934 | /// alignment requirements: getPointerInfo should take an AddrSpace, this | |||
| 1935 | /// should take a QualType, &c. | |||
| 1936 | TypeInfo ASTContext::getTypeInfoImpl(const Type *T) const { | |||
| 1937 | uint64_t Width = 0; | |||
| 1938 | unsigned Align = 8; | |||
| 1939 | AlignRequirementKind AlignRequirement = AlignRequirementKind::None; | |||
| 1940 | unsigned AS = 0; | |||
| 1941 | switch (T->getTypeClass()) { | |||
| 1942 | #define TYPE(Class, Base) | |||
| 1943 | #define ABSTRACT_TYPE(Class, Base) | |||
| 1944 | #define NON_CANONICAL_TYPE(Class, Base) | |||
| 1945 | #define DEPENDENT_TYPE(Class, Base) case Type::Class: | |||
| 1946 | #define NON_CANONICAL_UNLESS_DEPENDENT_TYPE(Class, Base) \ | |||
| 1947 | case Type::Class: \ | |||
| 1948 | assert(!T->isDependentType() && "should not see dependent types here")(static_cast <bool> (!T->isDependentType() && "should not see dependent types here") ? void (0) : __assert_fail ("!T->isDependentType() && \"should not see dependent types here\"" , "clang/lib/AST/ASTContext.cpp", 1948, __extension__ __PRETTY_FUNCTION__ )); \ | |||
| 1949 | return getTypeInfo(cast<Class##Type>(T)->desugar().getTypePtr()); | |||
| 1950 | #include "clang/AST/TypeNodes.inc" | |||
| 1951 | llvm_unreachable("Should not see dependent types")::llvm::llvm_unreachable_internal("Should not see dependent types" , "clang/lib/AST/ASTContext.cpp", 1951); | |||
| 1952 | ||||
| 1953 | case Type::FunctionNoProto: | |||
| 1954 | case Type::FunctionProto: | |||
| 1955 | // GCC extension: alignof(function) = 32 bits | |||
| 1956 | Width = 0; | |||
| 1957 | Align = 32; | |||
| 1958 | break; | |||
| 1959 | ||||
| 1960 | case Type::IncompleteArray: | |||
| 1961 | case Type::VariableArray: | |||
| 1962 | case Type::ConstantArray: { | |||
| 1963 | // Model non-constant sized arrays as size zero, but track the alignment. | |||
| 1964 | uint64_t Size = 0; | |||
| 1965 | if (const auto *CAT = dyn_cast<ConstantArrayType>(T)) | |||
| 1966 | Size = CAT->getSize().getZExtValue(); | |||
| 1967 | ||||
| 1968 | TypeInfo EltInfo = getTypeInfo(cast<ArrayType>(T)->getElementType()); | |||
| 1969 | assert((Size == 0 || EltInfo.Width <= (uint64_t)(-1) / Size) &&(static_cast <bool> ((Size == 0 || EltInfo.Width <= ( uint64_t)(-1) / Size) && "Overflow in array type bit size evaluation" ) ? void (0) : __assert_fail ("(Size == 0 || EltInfo.Width <= (uint64_t)(-1) / Size) && \"Overflow in array type bit size evaluation\"" , "clang/lib/AST/ASTContext.cpp", 1970, __extension__ __PRETTY_FUNCTION__ )) | |||
| 1970 | "Overflow in array type bit size evaluation")(static_cast <bool> ((Size == 0 || EltInfo.Width <= ( uint64_t)(-1) / Size) && "Overflow in array type bit size evaluation" ) ? void (0) : __assert_fail ("(Size == 0 || EltInfo.Width <= (uint64_t)(-1) / Size) && \"Overflow in array type bit size evaluation\"" , "clang/lib/AST/ASTContext.cpp", 1970, __extension__ __PRETTY_FUNCTION__ )); | |||
| 1971 | Width = EltInfo.Width * Size; | |||
| 1972 | Align = EltInfo.Align; | |||
| 1973 | AlignRequirement = EltInfo.AlignRequirement; | |||
| 1974 | if (!getTargetInfo().getCXXABI().isMicrosoft() || | |||
| 1975 | getTargetInfo().getPointerWidth(0) == 64) | |||
| 1976 | Width = llvm::alignTo(Width, Align); | |||
| 1977 | break; | |||
| 1978 | } | |||
| 1979 | ||||
| 1980 | case Type::ExtVector: | |||
| 1981 | case Type::Vector: { | |||
| 1982 | const auto *VT = cast<VectorType>(T); | |||
| 1983 | TypeInfo EltInfo = getTypeInfo(VT->getElementType()); | |||
| 1984 | Width = VT->isExtVectorBoolType() ? VT->getNumElements() | |||
| 1985 | : EltInfo.Width * VT->getNumElements(); | |||
| 1986 | // Enforce at least byte alignment. | |||
| 1987 | Align = std::max<unsigned>(8, Width); | |||
| 1988 | ||||
| 1989 | // If the alignment is not a power of 2, round up to the next power of 2. | |||
| 1990 | // This happens for non-power-of-2 length vectors. | |||
| 1991 | if (Align & (Align-1)) { | |||
| 1992 | Align = llvm::NextPowerOf2(Align); | |||
| 1993 | Width = llvm::alignTo(Width, Align); | |||
| 1994 | } | |||
| 1995 | // Adjust the alignment based on the target max. | |||
| 1996 | uint64_t TargetVectorAlign = Target->getMaxVectorAlign(); | |||
| 1997 | if (TargetVectorAlign && TargetVectorAlign < Align) | |||
| 1998 | Align = TargetVectorAlign; | |||
| 1999 | if (VT->getVectorKind() == VectorType::SveFixedLengthDataVector) | |||
| 2000 | // Adjust the alignment for fixed-length SVE vectors. This is important | |||
| 2001 | // for non-power-of-2 vector lengths. | |||
| 2002 | Align = 128; | |||
| 2003 | else if (VT->getVectorKind() == VectorType::SveFixedLengthPredicateVector) | |||
| 2004 | // Adjust the alignment for fixed-length SVE predicates. | |||
| 2005 | Align = 16; | |||
| 2006 | break; | |||
| 2007 | } | |||
| 2008 | ||||
| 2009 | case Type::ConstantMatrix: { | |||
| 2010 | const auto *MT = cast<ConstantMatrixType>(T); | |||
| 2011 | TypeInfo ElementInfo = getTypeInfo(MT->getElementType()); | |||
| 2012 | // The internal layout of a matrix value is implementation defined. | |||
| 2013 | // Initially be ABI compatible with arrays with respect to alignment and | |||
| 2014 | // size. | |||
| 2015 | Width = ElementInfo.Width * MT->getNumRows() * MT->getNumColumns(); | |||
| 2016 | Align = ElementInfo.Align; | |||
| 2017 | break; | |||
| 2018 | } | |||
| 2019 | ||||
| 2020 | case Type::Builtin: | |||
| 2021 | switch (cast<BuiltinType>(T)->getKind()) { | |||
| 2022 | default: llvm_unreachable("Unknown builtin type!")::llvm::llvm_unreachable_internal("Unknown builtin type!", "clang/lib/AST/ASTContext.cpp" , 2022); | |||
| 2023 | case BuiltinType::Void: | |||
| 2024 | // GCC extension: alignof(void) = 8 bits. | |||
| 2025 | Width = 0; | |||
| 2026 | Align = 8; | |||
| 2027 | break; | |||
| 2028 | case BuiltinType::Bool: | |||
| 2029 | Width = Target->getBoolWidth(); | |||
| 2030 | Align = Target->getBoolAlign(); | |||
| 2031 | break; | |||
| 2032 | case BuiltinType::Char_S: | |||
| 2033 | case BuiltinType::Char_U: | |||
| 2034 | case BuiltinType::UChar: | |||
| 2035 | case BuiltinType::SChar: | |||
| 2036 | case BuiltinType::Char8: | |||
| 2037 | Width = Target->getCharWidth(); | |||
| 2038 | Align = Target->getCharAlign(); | |||
| 2039 | break; | |||
| 2040 | case BuiltinType::WChar_S: | |||
| 2041 | case BuiltinType::WChar_U: | |||
| 2042 | Width = Target->getWCharWidth(); | |||
| 2043 | Align = Target->getWCharAlign(); | |||
| 2044 | break; | |||
| 2045 | case BuiltinType::Char16: | |||
| 2046 | Width = Target->getChar16Width(); | |||
| 2047 | Align = Target->getChar16Align(); | |||
| 2048 | break; | |||
| 2049 | case BuiltinType::Char32: | |||
| 2050 | Width = Target->getChar32Width(); | |||
| 2051 | Align = Target->getChar32Align(); | |||
| 2052 | break; | |||
| 2053 | case BuiltinType::UShort: | |||
| 2054 | case BuiltinType::Short: | |||
| 2055 | Width = Target->getShortWidth(); | |||
| 2056 | Align = Target->getShortAlign(); | |||
| 2057 | break; | |||
| 2058 | case BuiltinType::UInt: | |||
| 2059 | case BuiltinType::Int: | |||
| 2060 | Width = Target->getIntWidth(); | |||
| 2061 | Align = Target->getIntAlign(); | |||
| 2062 | break; | |||
| 2063 | case BuiltinType::ULong: | |||
| 2064 | case BuiltinType::Long: | |||
| 2065 | Width = Target->getLongWidth(); | |||
| 2066 | Align = Target->getLongAlign(); | |||
| 2067 | break; | |||
| 2068 | case BuiltinType::ULongLong: | |||
| 2069 | case BuiltinType::LongLong: | |||
| 2070 | Width = Target->getLongLongWidth(); | |||
| 2071 | Align = Target->getLongLongAlign(); | |||
| 2072 | break; | |||
| 2073 | case BuiltinType::Int128: | |||
| 2074 | case BuiltinType::UInt128: | |||
| 2075 | Width = 128; | |||
| 2076 | Align = 128; // int128_t is 128-bit aligned on all targets. | |||
| 2077 | break; | |||
| 2078 | case BuiltinType::ShortAccum: | |||
| 2079 | case BuiltinType::UShortAccum: | |||
| 2080 | case BuiltinType::SatShortAccum: | |||
| 2081 | case BuiltinType::SatUShortAccum: | |||
| 2082 | Width = Target->getShortAccumWidth(); | |||
| 2083 | Align = Target->getShortAccumAlign(); | |||
| 2084 | break; | |||
| 2085 | case BuiltinType::Accum: | |||
| 2086 | case BuiltinType::UAccum: | |||
| 2087 | case BuiltinType::SatAccum: | |||
| 2088 | case BuiltinType::SatUAccum: | |||
| 2089 | Width = Target->getAccumWidth(); | |||
| 2090 | Align = Target->getAccumAlign(); | |||
| 2091 | break; | |||
| 2092 | case BuiltinType::LongAccum: | |||
| 2093 | case BuiltinType::ULongAccum: | |||
| 2094 | case BuiltinType::SatLongAccum: | |||
| 2095 | case BuiltinType::SatULongAccum: | |||
| 2096 | Width = Target->getLongAccumWidth(); | |||
| 2097 | Align = Target->getLongAccumAlign(); | |||
| 2098 | break; | |||
| 2099 | case BuiltinType::ShortFract: | |||
| 2100 | case BuiltinType::UShortFract: | |||
| 2101 | case BuiltinType::SatShortFract: | |||
| 2102 | case BuiltinType::SatUShortFract: | |||
| 2103 | Width = Target->getShortFractWidth(); | |||
| 2104 | Align = Target->getShortFractAlign(); | |||
| 2105 | break; | |||
| 2106 | case BuiltinType::Fract: | |||
| 2107 | case BuiltinType::UFract: | |||
| 2108 | case BuiltinType::SatFract: | |||
| 2109 | case BuiltinType::SatUFract: | |||
| 2110 | Width = Target->getFractWidth(); | |||
| 2111 | Align = Target->getFractAlign(); | |||
| 2112 | break; | |||
| 2113 | case BuiltinType::LongFract: | |||
| 2114 | case BuiltinType::ULongFract: | |||
| 2115 | case BuiltinType::SatLongFract: | |||
| 2116 | case BuiltinType::SatULongFract: | |||
| 2117 | Width = Target->getLongFractWidth(); | |||
| 2118 | Align = Target->getLongFractAlign(); | |||
| 2119 | break; | |||
| 2120 | case BuiltinType::BFloat16: | |||
| 2121 | Width = Target->getBFloat16Width(); | |||
| 2122 | Align = Target->getBFloat16Align(); | |||
| 2123 | break; | |||
| 2124 | case BuiltinType::Float16: | |||
| 2125 | case BuiltinType::Half: | |||
| 2126 | if (Target->hasFloat16Type() || !getLangOpts().OpenMP || | |||
| 2127 | !getLangOpts().OpenMPIsDevice) { | |||
| 2128 | Width = Target->getHalfWidth(); | |||
| 2129 | Align = Target->getHalfAlign(); | |||
| 2130 | } else { | |||
| 2131 | assert(getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice &&(static_cast <bool> (getLangOpts().OpenMP && getLangOpts ().OpenMPIsDevice && "Expected OpenMP device compilation." ) ? void (0) : __assert_fail ("getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice && \"Expected OpenMP device compilation.\"" , "clang/lib/AST/ASTContext.cpp", 2132, __extension__ __PRETTY_FUNCTION__ )) | |||
| 2132 | "Expected OpenMP device compilation.")(static_cast <bool> (getLangOpts().OpenMP && getLangOpts ().OpenMPIsDevice && "Expected OpenMP device compilation." ) ? void (0) : __assert_fail ("getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice && \"Expected OpenMP device compilation.\"" , "clang/lib/AST/ASTContext.cpp", 2132, __extension__ __PRETTY_FUNCTION__ )); | |||
| 2133 | Width = AuxTarget->getHalfWidth(); | |||
| 2134 | Align = AuxTarget->getHalfAlign(); | |||
| 2135 | } | |||
| 2136 | break; | |||
| 2137 | case BuiltinType::Float: | |||
| 2138 | Width = Target->getFloatWidth(); | |||
| 2139 | Align = Target->getFloatAlign(); | |||
| 2140 | break; | |||
| 2141 | case BuiltinType::Double: | |||
| 2142 | Width = Target->getDoubleWidth(); | |||
| 2143 | Align = Target->getDoubleAlign(); | |||
| 2144 | break; | |||
| 2145 | case BuiltinType::Ibm128: | |||
| 2146 | Width = Target->getIbm128Width(); | |||
| 2147 | Align = Target->getIbm128Align(); | |||
| 2148 | break; | |||
| 2149 | case BuiltinType::LongDouble: | |||
| 2150 | if (getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice && | |||
| 2151 | (Target->getLongDoubleWidth() != AuxTarget->getLongDoubleWidth() || | |||
| 2152 | Target->getLongDoubleAlign() != AuxTarget->getLongDoubleAlign())) { | |||
| 2153 | Width = AuxTarget->getLongDoubleWidth(); | |||
| 2154 | Align = AuxTarget->getLongDoubleAlign(); | |||
| 2155 | } else { | |||
| 2156 | Width = Target->getLongDoubleWidth(); | |||
| 2157 | Align = Target->getLongDoubleAlign(); | |||
| 2158 | } | |||
| 2159 | break; | |||
| 2160 | case BuiltinType::Float128: | |||
| 2161 | if (Target->hasFloat128Type() || !getLangOpts().OpenMP || | |||
| 2162 | !getLangOpts().OpenMPIsDevice) { | |||
| 2163 | Width = Target->getFloat128Width(); | |||
| 2164 | Align = Target->getFloat128Align(); | |||
| 2165 | } else { | |||
| 2166 | assert(getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice &&(static_cast <bool> (getLangOpts().OpenMP && getLangOpts ().OpenMPIsDevice && "Expected OpenMP device compilation." ) ? void (0) : __assert_fail ("getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice && \"Expected OpenMP device compilation.\"" , "clang/lib/AST/ASTContext.cpp", 2167, __extension__ __PRETTY_FUNCTION__ )) | |||
| 2167 | "Expected OpenMP device compilation.")(static_cast <bool> (getLangOpts().OpenMP && getLangOpts ().OpenMPIsDevice && "Expected OpenMP device compilation." ) ? void (0) : __assert_fail ("getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice && \"Expected OpenMP device compilation.\"" , "clang/lib/AST/ASTContext.cpp", 2167, __extension__ __PRETTY_FUNCTION__ )); | |||
| 2168 | Width = AuxTarget->getFloat128Width(); | |||
| 2169 | Align = AuxTarget->getFloat128Align(); | |||
| 2170 | } | |||
| 2171 | break; | |||
| 2172 | case BuiltinType::NullPtr: | |||
| 2173 | Width = Target->getPointerWidth(0); // C++ 3.9.1p11: sizeof(nullptr_t) | |||
| 2174 | Align = Target->getPointerAlign(0); // == sizeof(void*) | |||
| 2175 | break; | |||
| 2176 | case BuiltinType::ObjCId: | |||
| 2177 | case BuiltinType::ObjCClass: | |||
| 2178 | case BuiltinType::ObjCSel: | |||
| 2179 | Width = Target->getPointerWidth(0); | |||
| 2180 | Align = Target->getPointerAlign(0); | |||
| 2181 | break; | |||
| 2182 | case BuiltinType::OCLSampler: | |||
| 2183 | case BuiltinType::OCLEvent: | |||
| 2184 | case BuiltinType::OCLClkEvent: | |||
| 2185 | case BuiltinType::OCLQueue: | |||
| 2186 | case BuiltinType::OCLReserveID: | |||
| 2187 | #define IMAGE_TYPE(ImgType, Id, SingletonId, Access, Suffix) \ | |||
| 2188 | case BuiltinType::Id: | |||
| 2189 | #include "clang/Basic/OpenCLImageTypes.def" | |||
| 2190 | #define EXT_OPAQUE_TYPE(ExtType, Id, Ext) \ | |||
| 2191 | case BuiltinType::Id: | |||
| 2192 | #include "clang/Basic/OpenCLExtensionTypes.def" | |||
| 2193 | AS = getTargetAddressSpace( | |||
| 2194 | Target->getOpenCLTypeAddrSpace(getOpenCLTypeKind(T))); | |||
| 2195 | Width = Target->getPointerWidth(AS); | |||
| 2196 | Align = Target->getPointerAlign(AS); | |||
| 2197 | break; | |||
| 2198 | // The SVE types are effectively target-specific. The length of an | |||
| 2199 | // SVE_VECTOR_TYPE is only known at runtime, but it is always a multiple | |||
| 2200 | // of 128 bits. There is one predicate bit for each vector byte, so the | |||
| 2201 | // length of an SVE_PREDICATE_TYPE is always a multiple of 16 bits. | |||
| 2202 | // | |||
| 2203 | // Because the length is only known at runtime, we use a dummy value | |||
| 2204 | // of 0 for the static length. The alignment values are those defined | |||
| 2205 | // by the Procedure Call Standard for the Arm Architecture. | |||
| 2206 | #define SVE_VECTOR_TYPE(Name, MangledName, Id, SingletonId, NumEls, ElBits, \ | |||
| 2207 | IsSigned, IsFP, IsBF) \ | |||
| 2208 | case BuiltinType::Id: \ | |||
| 2209 | Width = 0; \ | |||
| 2210 | Align = 128; \ | |||
| 2211 | break; | |||
| 2212 | #define SVE_PREDICATE_TYPE(Name, MangledName, Id, SingletonId, NumEls) \ | |||
| 2213 | case BuiltinType::Id: \ | |||
| 2214 | Width = 0; \ | |||
| 2215 | Align = 16; \ | |||
| 2216 | break; | |||
| 2217 | #include "clang/Basic/AArch64SVEACLETypes.def" | |||
| 2218 | #define PPC_VECTOR_TYPE(Name, Id, Size) \ | |||
| 2219 | case BuiltinType::Id: \ | |||
| 2220 | Width = Size; \ | |||
| 2221 | Align = Size; \ | |||
| 2222 | break; | |||
| 2223 | #include "clang/Basic/PPCTypes.def" | |||
| 2224 | #define RVV_VECTOR_TYPE(Name, Id, SingletonId, ElKind, ElBits, NF, IsSigned, \ | |||
| 2225 | IsFP) \ | |||
| 2226 | case BuiltinType::Id: \ | |||
| 2227 | Width = 0; \ | |||
| 2228 | Align = ElBits; \ | |||
| 2229 | break; | |||
| 2230 | #define RVV_PREDICATE_TYPE(Name, Id, SingletonId, ElKind) \ | |||
| 2231 | case BuiltinType::Id: \ | |||
| 2232 | Width = 0; \ | |||
| 2233 | Align = 8; \ | |||
| 2234 | break; | |||
| 2235 | #include "clang/Basic/RISCVVTypes.def" | |||
| 2236 | } | |||
| 2237 | break; | |||
| 2238 | case Type::ObjCObjectPointer: | |||
| 2239 | Width = Target->getPointerWidth(0); | |||
| 2240 | Align = Target->getPointerAlign(0); | |||
| 2241 | break; | |||
| 2242 | case Type::BlockPointer: | |||
| 2243 | AS = getTargetAddressSpace(cast<BlockPointerType>(T)->getPointeeType()); | |||
| 2244 | Width = Target->getPointerWidth(AS); | |||
| 2245 | Align = Target->getPointerAlign(AS); | |||
| 2246 | break; | |||
| 2247 | case Type::LValueReference: | |||
| 2248 | case Type::RValueReference: | |||
| 2249 | // alignof and sizeof should never enter this code path here, so we go | |||
| 2250 | // the pointer route. | |||
| 2251 | AS = getTargetAddressSpace(cast<ReferenceType>(T)->getPointeeType()); | |||
| 2252 | Width = Target->getPointerWidth(AS); | |||
| 2253 | Align = Target->getPointerAlign(AS); | |||
| 2254 | break; | |||
| 2255 | case Type::Pointer: | |||
| 2256 | AS = getTargetAddressSpace(cast<PointerType>(T)->getPointeeType()); | |||
| 2257 | Width = Target->getPointerWidth(AS); | |||
| 2258 | Align = Target->getPointerAlign(AS); | |||
| 2259 | break; | |||
| 2260 | case Type::MemberPointer: { | |||
| 2261 | const auto *MPT = cast<MemberPointerType>(T); | |||
| 2262 | CXXABI::MemberPointerInfo MPI = ABI->getMemberPointerInfo(MPT); | |||
| 2263 | Width = MPI.Width; | |||
| 2264 | Align = MPI.Align; | |||
| 2265 | break; | |||
| 2266 | } | |||
| 2267 | case Type::Complex: { | |||
| 2268 | // Complex types have the same alignment as their elements, but twice the | |||
| 2269 | // size. | |||
| 2270 | TypeInfo EltInfo = getTypeInfo(cast<ComplexType>(T)->getElementType()); | |||
| 2271 | Width = EltInfo.Width * 2; | |||
| 2272 | Align = EltInfo.Align; | |||
| 2273 | break; | |||
| 2274 | } | |||
| 2275 | case Type::ObjCObject: | |||
| 2276 | return getTypeInfo(cast<ObjCObjectType>(T)->getBaseType().getTypePtr()); | |||
| 2277 | case Type::Adjusted: | |||
| 2278 | case Type::Decayed: | |||
| 2279 | return getTypeInfo(cast<AdjustedType>(T)->getAdjustedType().getTypePtr()); | |||
| 2280 | case Type::ObjCInterface: { | |||
| 2281 | const auto *ObjCI = cast<ObjCInterfaceType>(T); | |||
| 2282 | if (ObjCI->getDecl()->isInvalidDecl()) { | |||
| 2283 | Width = 8; | |||
| 2284 | Align = 8; | |||
| 2285 | break; | |||
| 2286 | } | |||
| 2287 | const ASTRecordLayout &Layout = getASTObjCInterfaceLayout(ObjCI->getDecl()); | |||
| 2288 | Width = toBits(Layout.getSize()); | |||
| 2289 | Align = toBits(Layout.getAlignment()); | |||
| 2290 | break; | |||
| 2291 | } | |||
| 2292 | case Type::BitInt: { | |||
| 2293 | const auto *EIT = cast<BitIntType>(T); | |||
| 2294 | Align = | |||
| 2295 | std::min(static_cast<unsigned>(std::max( | |||
| 2296 | getCharWidth(), llvm::PowerOf2Ceil(EIT->getNumBits()))), | |||
| 2297 | Target->getLongLongAlign()); | |||
| 2298 | Width = llvm::alignTo(EIT->getNumBits(), Align); | |||
| 2299 | break; | |||
| 2300 | } | |||
| 2301 | case Type::Record: | |||
| 2302 | case Type::Enum: { | |||
| 2303 | const auto *TT = cast<TagType>(T); | |||
| 2304 | ||||
| 2305 | if (TT->getDecl()->isInvalidDecl()) { | |||
| 2306 | Width = 8; | |||
| 2307 | Align = 8; | |||
| 2308 | break; | |||
| 2309 | } | |||
| 2310 | ||||
| 2311 | if (const auto *ET = dyn_cast<EnumType>(TT)) { | |||
| 2312 | const EnumDecl *ED = ET->getDecl(); | |||
| 2313 | TypeInfo Info = | |||
| 2314 | getTypeInfo(ED->getIntegerType()->getUnqualifiedDesugaredType()); | |||
| 2315 | if (unsigned AttrAlign = ED->getMaxAlignment()) { | |||
| 2316 | Info.Align = AttrAlign; | |||
| 2317 | Info.AlignRequirement = AlignRequirementKind::RequiredByEnum; | |||
| 2318 | } | |||
| 2319 | return Info; | |||
| 2320 | } | |||
| 2321 | ||||
| 2322 | const auto *RT = cast<RecordType>(TT); | |||
| 2323 | const RecordDecl *RD = RT->getDecl(); | |||
| 2324 | const ASTRecordLayout &Layout = getASTRecordLayout(RD); | |||
| 2325 | Width = toBits(Layout.getSize()); | |||
| 2326 | Align = toBits(Layout.getAlignment()); | |||
| 2327 | AlignRequirement = RD->hasAttr<AlignedAttr>() | |||
| 2328 | ? AlignRequirementKind::RequiredByRecord | |||
| 2329 | : AlignRequirementKind::None; | |||
| 2330 | break; | |||
| 2331 | } | |||
| 2332 | ||||
| 2333 | case Type::SubstTemplateTypeParm: | |||
| 2334 | return getTypeInfo(cast<SubstTemplateTypeParmType>(T)-> | |||
| 2335 | getReplacementType().getTypePtr()); | |||
| 2336 | ||||
| 2337 | case Type::Auto: | |||
| 2338 | case Type::DeducedTemplateSpecialization: { | |||
| 2339 | const auto *A = cast<DeducedType>(T); | |||
| 2340 | assert(!A->getDeducedType().isNull() &&(static_cast <bool> (!A->getDeducedType().isNull() && "cannot request the size of an undeduced or dependent auto type" ) ? void (0) : __assert_fail ("!A->getDeducedType().isNull() && \"cannot request the size of an undeduced or dependent auto type\"" , "clang/lib/AST/ASTContext.cpp", 2341, __extension__ __PRETTY_FUNCTION__ )) | |||
| 2341 | "cannot request the size of an undeduced or dependent auto type")(static_cast <bool> (!A->getDeducedType().isNull() && "cannot request the size of an undeduced or dependent auto type" ) ? void (0) : __assert_fail ("!A->getDeducedType().isNull() && \"cannot request the size of an undeduced or dependent auto type\"" , "clang/lib/AST/ASTContext.cpp", 2341, __extension__ __PRETTY_FUNCTION__ )); | |||
| 2342 | return getTypeInfo(A->getDeducedType().getTypePtr()); | |||
| 2343 | } | |||
| 2344 | ||||
| 2345 | case Type::Paren: | |||
| 2346 | return getTypeInfo(cast<ParenType>(T)->getInnerType().getTypePtr()); | |||
| 2347 | ||||
| 2348 | case Type::MacroQualified: | |||
| 2349 | return getTypeInfo( | |||
| 2350 | cast<MacroQualifiedType>(T)->getUnderlyingType().getTypePtr()); | |||
| 2351 | ||||
| 2352 | case Type::ObjCTypeParam: | |||
| 2353 | return getTypeInfo(cast<ObjCTypeParamType>(T)->desugar().getTypePtr()); | |||
| 2354 | ||||
| 2355 | case Type::Using: | |||
| 2356 | return getTypeInfo(cast<UsingType>(T)->desugar().getTypePtr()); | |||
| 2357 | ||||
| 2358 | case Type::Typedef: { | |||
| 2359 | const TypedefNameDecl *Typedef = cast<TypedefType>(T)->getDecl(); | |||
| 2360 | TypeInfo Info = getTypeInfo(Typedef->getUnderlyingType().getTypePtr()); | |||
| 2361 | // If the typedef has an aligned attribute on it, it overrides any computed | |||
| 2362 | // alignment we have. This violates the GCC documentation (which says that | |||
| 2363 | // attribute(aligned) can only round up) but matches its implementation. | |||
| 2364 | if (unsigned AttrAlign = Typedef->getMaxAlignment()) { | |||
| 2365 | Align = AttrAlign; | |||
| 2366 | AlignRequirement = AlignRequirementKind::RequiredByTypedef; | |||
| 2367 | } else { | |||
| 2368 | Align = Info.Align; | |||
| 2369 | AlignRequirement = Info.AlignRequirement; | |||
| 2370 | } | |||
| 2371 | Width = Info.Width; | |||
| 2372 | break; | |||
| 2373 | } | |||
| 2374 | ||||
| 2375 | case Type::Elaborated: | |||
| 2376 | return getTypeInfo(cast<ElaboratedType>(T)->getNamedType().getTypePtr()); | |||
| 2377 | ||||
| 2378 | case Type::Attributed: | |||
| 2379 | return getTypeInfo( | |||
| 2380 | cast<AttributedType>(T)->getEquivalentType().getTypePtr()); | |||
| 2381 | ||||
| 2382 | case Type::BTFTagAttributed: | |||
| 2383 | return getTypeInfo( | |||
| 2384 | cast<BTFTagAttributedType>(T)->getWrappedType().getTypePtr()); | |||
| 2385 | ||||
| 2386 | case Type::Atomic: { | |||
| 2387 | // Start with the base type information. | |||
| 2388 | TypeInfo Info = getTypeInfo(cast<AtomicType>(T)->getValueType()); | |||
| 2389 | Width = Info.Width; | |||
| 2390 | Align = Info.Align; | |||
| 2391 | ||||
| 2392 | if (!Width) { | |||
| 2393 | // An otherwise zero-sized type should still generate an | |||
| 2394 | // atomic operation. | |||
| 2395 | Width = Target->getCharWidth(); | |||
| 2396 | assert(Align)(static_cast <bool> (Align) ? void (0) : __assert_fail ( "Align", "clang/lib/AST/ASTContext.cpp", 2396, __extension__ __PRETTY_FUNCTION__ )); | |||
| 2397 | } else if (Width <= Target->getMaxAtomicPromoteWidth()) { | |||
| 2398 | // If the size of the type doesn't exceed the platform's max | |||
| 2399 | // atomic promotion width, make the size and alignment more | |||
| 2400 | // favorable to atomic operations: | |||
| 2401 | ||||
| 2402 | // Round the size up to a power of 2. | |||
| 2403 | if (!llvm::isPowerOf2_64(Width)) | |||
| 2404 | Width = llvm::NextPowerOf2(Width); | |||
| 2405 | ||||
| 2406 | // Set the alignment equal to the size. | |||
| 2407 | Align = static_cast<unsigned>(Width); | |||
| 2408 | } | |||
| 2409 | } | |||
| 2410 | break; | |||
| 2411 | ||||
| 2412 | case Type::Pipe: | |||
| 2413 | Width = Target->getPointerWidth(getTargetAddressSpace(LangAS::opencl_global)); | |||
| 2414 | Align = Target->getPointerAlign(getTargetAddressSpace(LangAS::opencl_global)); | |||
| 2415 | break; | |||
| 2416 | } | |||
| 2417 | ||||
| 2418 | assert(llvm::isPowerOf2_32(Align) && "Alignment must be power of 2")(static_cast <bool> (llvm::isPowerOf2_32(Align) && "Alignment must be power of 2") ? void (0) : __assert_fail ( "llvm::isPowerOf2_32(Align) && \"Alignment must be power of 2\"" , "clang/lib/AST/ASTContext.cpp", 2418, __extension__ __PRETTY_FUNCTION__ )); | |||
| 2419 | return TypeInfo(Width, Align, AlignRequirement); | |||
| 2420 | } | |||
| 2421 | ||||
| 2422 | unsigned ASTContext::getTypeUnadjustedAlign(const Type *T) const { | |||
| 2423 | UnadjustedAlignMap::iterator I = MemoizedUnadjustedAlign.find(T); | |||
| 2424 | if (I != MemoizedUnadjustedAlign.end()) | |||
| 2425 | return I->second; | |||
| 2426 | ||||
| 2427 | unsigned UnadjustedAlign; | |||
| 2428 | if (const auto *RT = T->getAs<RecordType>()) { | |||
| 2429 | const RecordDecl *RD = RT->getDecl(); | |||
| 2430 | const ASTRecordLayout &Layout = getASTRecordLayout(RD); | |||
| 2431 | UnadjustedAlign = toBits(Layout.getUnadjustedAlignment()); | |||
| 2432 | } else if (const auto *ObjCI = T->getAs<ObjCInterfaceType>()) { | |||
| 2433 | const ASTRecordLayout &Layout = getASTObjCInterfaceLayout(ObjCI->getDecl()); | |||
| 2434 | UnadjustedAlign = toBits(Layout.getUnadjustedAlignment()); | |||
| 2435 | } else { | |||
| 2436 | UnadjustedAlign = getTypeAlign(T->getUnqualifiedDesugaredType()); | |||
| 2437 | } | |||
| 2438 | ||||
| 2439 | MemoizedUnadjustedAlign[T] = UnadjustedAlign; | |||
| 2440 | return UnadjustedAlign; | |||
| 2441 | } | |||
| 2442 | ||||
| 2443 | unsigned ASTContext::getOpenMPDefaultSimdAlign(QualType T) const { | |||
| 2444 | unsigned SimdAlign = getTargetInfo().getSimdDefaultAlign(); | |||
| 2445 | return SimdAlign; | |||
| 2446 | } | |||
| 2447 | ||||
| 2448 | /// toCharUnitsFromBits - Convert a size in bits to a size in characters. | |||
| 2449 | CharUnits ASTContext::toCharUnitsFromBits(int64_t BitSize) const { | |||
| 2450 | return CharUnits::fromQuantity(BitSize / getCharWidth()); | |||
| 2451 | } | |||
| 2452 | ||||
| 2453 | /// toBits - Convert a size in characters to a size in characters. | |||
| 2454 | int64_t ASTContext::toBits(CharUnits CharSize) const { | |||
| 2455 | return CharSize.getQuantity() * getCharWidth(); | |||
| 2456 | } | |||
| 2457 | ||||
| 2458 | /// getTypeSizeInChars - Return the size of the specified type, in characters. | |||
| 2459 | /// This method does not work on incomplete types. | |||
| 2460 | CharUnits ASTContext::getTypeSizeInChars(QualType T) const { | |||
| 2461 | return getTypeInfoInChars(T).Width; | |||
| 2462 | } | |||
| 2463 | CharUnits ASTContext::getTypeSizeInChars(const Type *T) const { | |||
| 2464 | return getTypeInfoInChars(T).Width; | |||
| 2465 | } | |||
| 2466 | ||||
| 2467 | /// getTypeAlignInChars - Return the ABI-specified alignment of a type, in | |||
| 2468 | /// characters. This method does not work on incomplete types. | |||
| 2469 | CharUnits ASTContext::getTypeAlignInChars(QualType T) const { | |||
| 2470 | return toCharUnitsFromBits(getTypeAlign(T)); | |||
| 2471 | } | |||
| 2472 | CharUnits ASTContext::getTypeAlignInChars(const Type *T) const { | |||
| 2473 | return toCharUnitsFromBits(getTypeAlign(T)); | |||
| 2474 | } | |||
| 2475 | ||||
| 2476 | /// getTypeUnadjustedAlignInChars - Return the ABI-specified alignment of a | |||
| 2477 | /// type, in characters, before alignment adustments. This method does | |||
| 2478 | /// not work on incomplete types. | |||
| 2479 | CharUnits ASTContext::getTypeUnadjustedAlignInChars(QualType T) const { | |||
| 2480 | return toCharUnitsFromBits(getTypeUnadjustedAlign(T)); | |||
| 2481 | } | |||
| 2482 | CharUnits ASTContext::getTypeUnadjustedAlignInChars(const Type *T) const { | |||
| 2483 | return toCharUnitsFromBits(getTypeUnadjustedAlign(T)); | |||
| 2484 | } | |||
| 2485 | ||||
| 2486 | /// getPreferredTypeAlign - Return the "preferred" alignment of the specified | |||
| 2487 | /// type for the current target in bits. This can be different than the ABI | |||
| 2488 | /// alignment in cases where it is beneficial for performance or backwards | |||
| 2489 | /// compatibility preserving to overalign a data type. (Note: despite the name, | |||
| 2490 | /// the preferred alignment is ABI-impacting, and not an optimization.) | |||
| 2491 | unsigned ASTContext::getPreferredTypeAlign(const Type *T) const { | |||
| 2492 | TypeInfo TI = getTypeInfo(T); | |||
| 2493 | unsigned ABIAlign = TI.Align; | |||
| 2494 | ||||
| 2495 | T = T->getBaseElementTypeUnsafe(); | |||
| 2496 | ||||
| 2497 | // The preferred alignment of member pointers is that of a pointer. | |||
| 2498 | if (T->isMemberPointerType()) | |||
| 2499 | return getPreferredTypeAlign(getPointerDiffType().getTypePtr()); | |||
| 2500 | ||||
| 2501 | if (!Target->allowsLargerPreferedTypeAlignment()) | |||
| 2502 | return ABIAlign; | |||
| 2503 | ||||
| 2504 | if (const auto *RT = T->getAs<RecordType>()) { | |||
| 2505 | const RecordDecl *RD = RT->getDecl(); | |||
| 2506 | ||||
| 2507 | // When used as part of a typedef, or together with a 'packed' attribute, | |||
| 2508 | // the 'aligned' attribute can be used to decrease alignment. Note that the | |||
| 2509 | // 'packed' case is already taken into consideration when computing the | |||
| 2510 | // alignment, we only need to handle the typedef case here. | |||
| 2511 | if (TI.AlignRequirement == AlignRequirementKind::RequiredByTypedef || | |||
| 2512 | RD->isInvalidDecl()) | |||
| 2513 | return ABIAlign; | |||
| 2514 | ||||
| 2515 | unsigned PreferredAlign = static_cast<unsigned>( | |||
| 2516 | toBits(getASTRecordLayout(RD).PreferredAlignment)); | |||
| 2517 | assert(PreferredAlign >= ABIAlign &&(static_cast <bool> (PreferredAlign >= ABIAlign && "PreferredAlign should be at least as large as ABIAlign.") ? void (0) : __assert_fail ("PreferredAlign >= ABIAlign && \"PreferredAlign should be at least as large as ABIAlign.\"" , "clang/lib/AST/ASTContext.cpp", 2518, __extension__ __PRETTY_FUNCTION__ )) | |||
| 2518 | "PreferredAlign should be at least as large as ABIAlign.")(static_cast <bool> (PreferredAlign >= ABIAlign && "PreferredAlign should be at least as large as ABIAlign.") ? void (0) : __assert_fail ("PreferredAlign >= ABIAlign && \"PreferredAlign should be at least as large as ABIAlign.\"" , "clang/lib/AST/ASTContext.cpp", 2518, __extension__ __PRETTY_FUNCTION__ )); | |||
| 2519 | return PreferredAlign; | |||
| 2520 | } | |||
| 2521 | ||||
| 2522 | // Double (and, for targets supporting AIX `power` alignment, long double) and | |||
| 2523 | // long long should be naturally aligned (despite requiring less alignment) if | |||
| 2524 | // possible. | |||
| 2525 | if (const auto *CT = T->getAs<ComplexType>()) | |||
| 2526 | T = CT->getElementType().getTypePtr(); | |||
| 2527 | if (const auto *ET = T->getAs<EnumType>()) | |||
| 2528 | T = ET->getDecl()->getIntegerType().getTypePtr(); | |||
| 2529 | if (T->isSpecificBuiltinType(BuiltinType::Double) || | |||
| 2530 | T->isSpecificBuiltinType(BuiltinType::LongLong) || | |||
| 2531 | T->isSpecificBuiltinType(BuiltinType::ULongLong) || | |||
| 2532 | (T->isSpecificBuiltinType(BuiltinType::LongDouble) && | |||
| 2533 | Target->defaultsToAIXPowerAlignment())) | |||
| 2534 | // Don't increase the alignment if an alignment attribute was specified on a | |||
| 2535 | // typedef declaration. | |||
| 2536 | if (!TI.isAlignRequired()) | |||
| 2537 | return std::max(ABIAlign, (unsigned)getTypeSize(T)); | |||
| 2538 | ||||
| 2539 | return ABIAlign; | |||
| 2540 | } | |||
| 2541 | ||||
| 2542 | /// getTargetDefaultAlignForAttributeAligned - Return the default alignment | |||
| 2543 | /// for __attribute__((aligned)) on this target, to be used if no alignment | |||
| 2544 | /// value is specified. | |||
| 2545 | unsigned ASTContext::getTargetDefaultAlignForAttributeAligned() const { | |||
| 2546 | return getTargetInfo().getDefaultAlignForAttributeAligned(); | |||
| 2547 | } | |||
| 2548 | ||||
| 2549 | /// getAlignOfGlobalVar - Return the alignment in bits that should be given | |||
| 2550 | /// to a global variable of the specified type. | |||
| 2551 | unsigned ASTContext::getAlignOfGlobalVar(QualType T) const { | |||
| 2552 | uint64_t TypeSize = getTypeSize(T.getTypePtr()); | |||
| 2553 | return std::max(getPreferredTypeAlign(T), | |||
| 2554 | getTargetInfo().getMinGlobalAlign(TypeSize)); | |||
| 2555 | } | |||
| 2556 | ||||
| 2557 | /// getAlignOfGlobalVarInChars - Return the alignment in characters that | |||
| 2558 | /// should be given to a global variable of the specified type. | |||
| 2559 | CharUnits ASTContext::getAlignOfGlobalVarInChars(QualType T) const { | |||
| 2560 | return toCharUnitsFromBits(getAlignOfGlobalVar(T)); | |||
| 2561 | } | |||
| 2562 | ||||
| 2563 | CharUnits ASTContext::getOffsetOfBaseWithVBPtr(const CXXRecordDecl *RD) const { | |||
| 2564 | CharUnits Offset = CharUnits::Zero(); | |||
| 2565 | const ASTRecordLayout *Layout = &getASTRecordLayout(RD); | |||
| 2566 | while (const CXXRecordDecl *Base = Layout->getBaseSharingVBPtr()) { | |||
| 2567 | Offset += Layout->getBaseClassOffset(Base); | |||
| 2568 | Layout = &getASTRecordLayout(Base); | |||
| 2569 | } | |||
| 2570 | return Offset; | |||
| 2571 | } | |||
| 2572 | ||||
| 2573 | CharUnits ASTContext::getMemberPointerPathAdjustment(const APValue &MP) const { | |||
| 2574 | const ValueDecl *MPD = MP.getMemberPointerDecl(); | |||
| 2575 | CharUnits ThisAdjustment = CharUnits::Zero(); | |||
| 2576 | ArrayRef<const CXXRecordDecl*> Path = MP.getMemberPointerPath(); | |||
| 2577 | bool DerivedMember = MP.isMemberPointerToDerivedMember(); | |||
| 2578 | const CXXRecordDecl *RD = cast<CXXRecordDecl>(MPD->getDeclContext()); | |||
| 2579 | for (unsigned I = 0, N = Path.size(); I != N; ++I) { | |||
| 2580 | const CXXRecordDecl *Base = RD; | |||
| 2581 | const CXXRecordDecl *Derived = Path[I]; | |||
| 2582 | if (DerivedMember) | |||
| 2583 | std::swap(Base, Derived); | |||
| 2584 | ThisAdjustment += getASTRecordLayout(Derived).getBaseClassOffset(Base); | |||
| 2585 | RD = Path[I]; | |||
| 2586 | } | |||
| 2587 | if (DerivedMember) | |||
| 2588 | ThisAdjustment = -ThisAdjustment; | |||
| 2589 | return ThisAdjustment; | |||
| 2590 | } | |||
| 2591 | ||||
| 2592 | /// DeepCollectObjCIvars - | |||
| 2593 | /// This routine first collects all declared, but not synthesized, ivars in | |||
| 2594 | /// super class and then collects all ivars, including those synthesized for | |||
| 2595 | /// current class. This routine is used for implementation of current class | |||
| 2596 | /// when all ivars, declared and synthesized are known. | |||
| 2597 | void ASTContext::DeepCollectObjCIvars(const ObjCInterfaceDecl *OI, | |||
| 2598 | bool leafClass, | |||
| 2599 | SmallVectorImpl<const ObjCIvarDecl*> &Ivars) const { | |||
| 2600 | if (const ObjCInterfaceDecl *SuperClass = OI->getSuperClass()) | |||
| 2601 | DeepCollectObjCIvars(SuperClass, false, Ivars); | |||
| 2602 | if (!leafClass) { | |||
| 2603 | llvm::append_range(Ivars, OI->ivars()); | |||
| 2604 | } else { | |||
| 2605 | auto *IDecl = const_cast<ObjCInterfaceDecl *>(OI); | |||
| 2606 | for (const ObjCIvarDecl *Iv = IDecl->all_declared_ivar_begin(); Iv; | |||
| 2607 | Iv= Iv->getNextIvar()) | |||
| 2608 | Ivars.push_back(Iv); | |||
| 2609 | } | |||
| 2610 | } | |||
| 2611 | ||||
| 2612 | /// CollectInheritedProtocols - Collect all protocols in current class and | |||
| 2613 | /// those inherited by it. | |||
| 2614 | void ASTContext::CollectInheritedProtocols(const Decl *CDecl, | |||
| 2615 | llvm::SmallPtrSet<ObjCProtocolDecl*, 8> &Protocols) { | |||
| 2616 | if (const auto *OI = dyn_cast<ObjCInterfaceDecl>(CDecl)) { | |||
| 2617 | // We can use protocol_iterator here instead of | |||
| 2618 | // all_referenced_protocol_iterator since we are walking all categories. | |||
| 2619 | for (auto *Proto : OI->all_referenced_protocols()) { | |||
| 2620 | CollectInheritedProtocols(Proto, Protocols); | |||
| 2621 | } | |||
| 2622 | ||||
| 2623 | // Categories of this Interface. | |||
| 2624 | for (const auto *Cat : OI->visible_categories()) | |||
| 2625 | CollectInheritedProtocols(Cat, Protocols); | |||
| 2626 | ||||
| 2627 | if (ObjCInterfaceDecl *SD = OI->getSuperClass()) | |||
| 2628 | while (SD) { | |||
| 2629 | CollectInheritedProtocols(SD, Protocols); | |||
| 2630 | SD = SD->getSuperClass(); | |||
| 2631 | } | |||
| 2632 | } else if (const auto *OC = dyn_cast<ObjCCategoryDecl>(CDecl)) { | |||
| 2633 | for (auto *Proto : OC->protocols()) { | |||
| 2634 | CollectInheritedProtocols(Proto, Protocols); | |||
| 2635 | } | |||
| 2636 | } else if (const auto *OP = dyn_cast<ObjCProtocolDecl>(CDecl)) { | |||
| 2637 | // Insert the protocol. | |||
| 2638 | if (!Protocols.insert( | |||
| 2639 | const_cast<ObjCProtocolDecl *>(OP->getCanonicalDecl())).second) | |||
| 2640 | return; | |||
| 2641 | ||||
| 2642 | for (auto *Proto : OP->protocols()) | |||
| 2643 | CollectInheritedProtocols(Proto, Protocols); | |||
| 2644 | } | |||
| 2645 | } | |||
| 2646 | ||||
| 2647 | static bool unionHasUniqueObjectRepresentations(const ASTContext &Context, | |||
| 2648 | const RecordDecl *RD) { | |||
| 2649 | assert(RD->isUnion() && "Must be union type")(static_cast <bool> (RD->isUnion() && "Must be union type" ) ? void (0) : __assert_fail ("RD->isUnion() && \"Must be union type\"" , "clang/lib/AST/ASTContext.cpp", 2649, __extension__ __PRETTY_FUNCTION__ )); | |||
| 2650 | CharUnits UnionSize = Context.getTypeSizeInChars(RD->getTypeForDecl()); | |||
| 2651 | ||||
| 2652 | for (const auto *Field : RD->fields()) { | |||
| 2653 | if (!Context.hasUniqueObjectRepresentations(Field->getType())) | |||
| 2654 | return false; | |||
| 2655 | CharUnits FieldSize = Context.getTypeSizeInChars(Field->getType()); | |||
| 2656 | if (FieldSize != UnionSize) | |||
| 2657 | return false; | |||
| 2658 | } | |||
| 2659 | return !RD->field_empty(); | |||
| 2660 | } | |||
| 2661 | ||||
| 2662 | static int64_t getSubobjectOffset(const FieldDecl *Field, | |||
| 2663 | const ASTContext &Context, | |||
| 2664 | const clang::ASTRecordLayout & /*Layout*/) { | |||
| 2665 | return Context.getFieldOffset(Field); | |||
| 2666 | } | |||
| 2667 | ||||
| 2668 | static int64_t getSubobjectOffset(const CXXRecordDecl *RD, | |||
| 2669 | const ASTContext &Context, | |||
| 2670 | const clang::ASTRecordLayout &Layout) { | |||
| 2671 | return Context.toBits(Layout.getBaseClassOffset(RD)); | |||
| 2672 | } | |||
| 2673 | ||||
| 2674 | static llvm::Optional<int64_t> | |||
| 2675 | structHasUniqueObjectRepresentations(const ASTContext &Context, | |||
| 2676 | const RecordDecl *RD); | |||
| 2677 | ||||
| 2678 | static llvm::Optional<int64_t> | |||
| 2679 | getSubobjectSizeInBits(const FieldDecl *Field, const ASTContext &Context) { | |||
| 2680 | if (Field->getType()->isRecordType()) { | |||
| 2681 | const RecordDecl *RD = Field->getType()->getAsRecordDecl(); | |||
| 2682 | if (!RD->isUnion()) | |||
| 2683 | return structHasUniqueObjectRepresentations(Context, RD); | |||
| 2684 | } | |||
| 2685 | if (!Field->getType()->isReferenceType() && | |||
| 2686 | !Context.hasUniqueObjectRepresentations(Field->getType())) | |||
| 2687 | return llvm::None; | |||
| 2688 | ||||
| 2689 | int64_t FieldSizeInBits = | |||
| 2690 | Context.toBits(Context.getTypeSizeInChars(Field->getType())); | |||
| 2691 | if (Field->isBitField()) { | |||
| 2692 | int64_t BitfieldSize = Field->getBitWidthValue(Context); | |||
| 2693 | if (BitfieldSize > FieldSizeInBits) | |||
| 2694 | return llvm::None; | |||
| 2695 | FieldSizeInBits = BitfieldSize; | |||
| 2696 | } | |||
| 2697 | return FieldSizeInBits; | |||
| 2698 | } | |||
| 2699 | ||||
| 2700 | static llvm::Optional<int64_t> | |||
| 2701 | getSubobjectSizeInBits(const CXXRecordDecl *RD, const ASTContext &Context) { | |||
| 2702 | return structHasUniqueObjectRepresentations(Context, RD); | |||
| 2703 | } | |||
| 2704 | ||||
| 2705 | template <typename RangeT> | |||
| 2706 | static llvm::Optional<int64_t> structSubobjectsHaveUniqueObjectRepresentations( | |||
| 2707 | const RangeT &Subobjects, int64_t CurOffsetInBits, | |||
| 2708 | const ASTContext &Context, const clang::ASTRecordLayout &Layout) { | |||
| 2709 | for (const auto *Subobject : Subobjects) { | |||
| 2710 | llvm::Optional<int64_t> SizeInBits = | |||
| 2711 | getSubobjectSizeInBits(Subobject, Context); | |||
| 2712 | if (!SizeInBits) | |||
| 2713 | return llvm::None; | |||
| 2714 | if (*SizeInBits != 0) { | |||
| 2715 | int64_t Offset = getSubobjectOffset(Subobject, Context, Layout); | |||
| 2716 | if (Offset != CurOffsetInBits) | |||
| 2717 | return llvm::None; | |||
| 2718 | CurOffsetInBits += *SizeInBits; | |||
| 2719 | } | |||
| 2720 | } | |||
| 2721 | return CurOffsetInBits; | |||
| 2722 | } | |||
| 2723 | ||||
| 2724 | static llvm::Optional<int64_t> | |||
| 2725 | structHasUniqueObjectRepresentations(const ASTContext &Context, | |||
| 2726 | const RecordDecl *RD) { | |||
| 2727 | assert(!RD->isUnion() && "Must be struct/class type")(static_cast <bool> (!RD->isUnion() && "Must be struct/class type" ) ? void (0) : __assert_fail ("!RD->isUnion() && \"Must be struct/class type\"" , "clang/lib/AST/ASTContext.cpp", 2727, __extension__ __PRETTY_FUNCTION__ )); | |||
| 2728 | const auto &Layout = Context.getASTRecordLayout(RD); | |||
| 2729 | ||||
| 2730 | int64_t CurOffsetInBits = 0; | |||
| 2731 | if (const auto *ClassDecl = dyn_cast<CXXRecordDecl>(RD)) { | |||
| 2732 | if (ClassDecl->isDynamicClass()) | |||
| 2733 | return llvm::None; | |||
| 2734 | ||||
| 2735 | SmallVector<CXXRecordDecl *, 4> Bases; | |||
| 2736 | for (const auto &Base : ClassDecl->bases()) { | |||
| 2737 | // Empty types can be inherited from, and non-empty types can potentially | |||
| 2738 | // have tail padding, so just make sure there isn't an error. | |||
| 2739 | Bases.emplace_back(Base.getType()->getAsCXXRecordDecl()); | |||
| 2740 | } | |||
| 2741 | ||||
| 2742 | llvm::sort(Bases, [&](const CXXRecordDecl *L, const CXXRecordDecl *R) { | |||
| 2743 | return Layout.getBaseClassOffset(L) < Layout.getBaseClassOffset(R); | |||
| 2744 | }); | |||
| 2745 | ||||
| 2746 | llvm::Optional<int64_t> OffsetAfterBases = | |||
| 2747 | structSubobjectsHaveUniqueObjectRepresentations(Bases, CurOffsetInBits, | |||
| 2748 | Context, Layout); | |||
| 2749 | if (!OffsetAfterBases) | |||
| 2750 | return llvm::None; | |||
| 2751 | CurOffsetInBits = *OffsetAfterBases; | |||
| 2752 | } | |||
| 2753 | ||||
| 2754 | llvm::Optional<int64_t> OffsetAfterFields = | |||
| 2755 | structSubobjectsHaveUniqueObjectRepresentations( | |||
| 2756 | RD->fields(), CurOffsetInBits, Context, Layout); | |||
| 2757 | if (!OffsetAfterFields) | |||
| 2758 | return llvm::None; | |||
| 2759 | CurOffsetInBits = *OffsetAfterFields; | |||
| 2760 | ||||
| 2761 | return CurOffsetInBits; | |||
| 2762 | } | |||
| 2763 | ||||
| 2764 | bool ASTContext::hasUniqueObjectRepresentations(QualType Ty) const { | |||
| 2765 | // C++17 [meta.unary.prop]: | |||
| 2766 | // The predicate condition for a template specialization | |||
| 2767 | // has_unique_object_representations<T> shall be | |||
| 2768 | // satisfied if and only if: | |||
| 2769 | // (9.1) - T is trivially copyable, and | |||
| 2770 | // (9.2) - any two objects of type T with the same value have the same | |||
| 2771 | // object representation, where two objects | |||
| 2772 | // of array or non-union class type are considered to have the same value | |||
| 2773 | // if their respective sequences of | |||
| 2774 | // direct subobjects have the same values, and two objects of union type | |||
| 2775 | // are considered to have the same | |||
| 2776 | // value if they have the same active member and the corresponding members | |||
| 2777 | // have the same value. | |||
| 2778 | // The set of scalar types for which this condition holds is | |||
| 2779 | // implementation-defined. [ Note: If a type has padding | |||
| 2780 | // bits, the condition does not hold; otherwise, the condition holds true | |||
| 2781 | // for unsigned integral types. -- end note ] | |||
| 2782 | assert(!Ty.isNull() && "Null QualType sent to unique object rep check")(static_cast <bool> (!Ty.isNull() && "Null QualType sent to unique object rep check" ) ? void (0) : __assert_fail ("!Ty.isNull() && \"Null QualType sent to unique object rep check\"" , "clang/lib/AST/ASTContext.cpp", 2782, __extension__ __PRETTY_FUNCTION__ )); | |||
| 2783 | ||||
| 2784 | // Arrays are unique only if their element type is unique. | |||
| 2785 | if (Ty->isArrayType()) | |||
| 2786 | return hasUniqueObjectRepresentations(getBaseElementType(Ty)); | |||
| 2787 | ||||
| 2788 | // (9.1) - T is trivially copyable... | |||
| 2789 | if (!Ty.isTriviallyCopyableType(*this)) | |||
| 2790 | return false; | |||
| 2791 | ||||
| 2792 | // All integrals and enums are unique. | |||
| 2793 | if (Ty->isIntegralOrEnumerationType()) | |||
| 2794 | return true; | |||
| 2795 | ||||
| 2796 | // All other pointers are unique. | |||
| 2797 | if (Ty->isPointerType()) | |||
| 2798 | return true; | |||
| 2799 | ||||
| 2800 | if (Ty->isMemberPointerType()) { | |||
| 2801 | const auto *MPT = Ty->getAs<MemberPointerType>(); | |||
| 2802 | return !ABI->getMemberPointerInfo(MPT).HasPadding; | |||
| 2803 | } | |||
| 2804 | ||||
| 2805 | if (Ty->isRecordType()) { | |||
| 2806 | const RecordDecl *Record = Ty->castAs<RecordType>()->getDecl(); | |||
| 2807 | ||||
| 2808 | if (Record->isInvalidDecl()) | |||
| 2809 | return false; | |||
| 2810 | ||||
| 2811 | if (Record->isUnion()) | |||
| 2812 | return unionHasUniqueObjectRepresentations(*this, Record); | |||
| 2813 | ||||
| 2814 | Optional<int64_t> StructSize = | |||
| 2815 | structHasUniqueObjectRepresentations(*this, Record); | |||
| 2816 | ||||
| 2817 | return StructSize && | |||
| 2818 | StructSize.getValue() == static_cast<int64_t>(getTypeSize(Ty)); | |||
| 2819 | } | |||
| 2820 | ||||
| 2821 | // FIXME: More cases to handle here (list by rsmith): | |||
| 2822 | // vectors (careful about, eg, vector of 3 foo) | |||
| 2823 | // _Complex int and friends | |||
| 2824 | // _Atomic T | |||
| 2825 | // Obj-C block pointers | |||
| 2826 | // Obj-C object pointers | |||
| 2827 | // and perhaps OpenCL's various builtin types (pipe, sampler_t, event_t, | |||
| 2828 | // clk_event_t, queue_t, reserve_id_t) | |||
| 2829 | // There're also Obj-C class types and the Obj-C selector type, but I think it | |||
| 2830 | // makes sense for those to return false here. | |||
| 2831 | ||||
| 2832 | return false; | |||
| 2833 | } | |||
| 2834 | ||||
| 2835 | unsigned ASTContext::CountNonClassIvars(const ObjCInterfaceDecl *OI) const { | |||
| 2836 | unsigned count = 0; | |||
| 2837 | // Count ivars declared in class extension. | |||
| 2838 | for (const auto *Ext : OI->known_extensions()) | |||
| 2839 | count += Ext->ivar_size(); | |||
| 2840 | ||||
| 2841 | // Count ivar defined in this class's implementation. This | |||
| 2842 | // includes synthesized ivars. | |||
| 2843 | if (ObjCImplementationDecl *ImplDecl = OI->getImplementation()) | |||
| 2844 | count += ImplDecl->ivar_size(); | |||
| 2845 | ||||
| 2846 | return count; | |||
| 2847 | } | |||
| 2848 | ||||
| 2849 | bool ASTContext::isSentinelNullExpr(const Expr *E) { | |||
| 2850 | if (!E) | |||
| 2851 | return false; | |||
| 2852 | ||||
| 2853 | // nullptr_t is always treated as null. | |||
| 2854 | if (E->getType()->isNullPtrType()) return true; | |||
| 2855 | ||||
| 2856 | if (E->getType()->isAnyPointerType() && | |||
| 2857 | E->IgnoreParenCasts()->isNullPointerConstant(*this, | |||
| 2858 | Expr::NPC_ValueDependentIsNull)) | |||
| 2859 | return true; | |||
| 2860 | ||||
| 2861 | // Unfortunately, __null has type 'int'. | |||
| 2862 | if (isa<GNUNullExpr>(E)) return true; | |||
| 2863 | ||||
| 2864 | return false; | |||
| 2865 | } | |||
| 2866 | ||||
| 2867 | /// Get the implementation of ObjCInterfaceDecl, or nullptr if none | |||
| 2868 | /// exists. | |||
| 2869 | ObjCImplementationDecl *ASTContext::getObjCImplementation(ObjCInterfaceDecl *D) { | |||
| 2870 | llvm::DenseMap<ObjCContainerDecl*, ObjCImplDecl*>::iterator | |||
| 2871 | I = ObjCImpls.find(D); | |||
| 2872 | if (I != ObjCImpls.end()) | |||
| 2873 | return cast<ObjCImplementationDecl>(I->second); | |||
| 2874 | return nullptr; | |||
| 2875 | } | |||
| 2876 | ||||
| 2877 | /// Get the implementation of ObjCCategoryDecl, or nullptr if none | |||
| 2878 | /// exists. | |||
| 2879 | ObjCCategoryImplDecl *ASTContext::getObjCImplementation(ObjCCategoryDecl *D) { | |||
| 2880 | llvm::DenseMap<ObjCContainerDecl*, ObjCImplDecl*>::iterator | |||
| 2881 | I = ObjCImpls.find(D); | |||
| 2882 | if (I != ObjCImpls.end()) | |||
| 2883 | return cast<ObjCCategoryImplDecl>(I->second); | |||
| 2884 | return nullptr; | |||
| 2885 | } | |||
| 2886 | ||||
| 2887 | /// Set the implementation of ObjCInterfaceDecl. | |||
| 2888 | void ASTContext::setObjCImplementation(ObjCInterfaceDecl *IFaceD, | |||
| 2889 | ObjCImplementationDecl *ImplD) { | |||
| 2890 | assert(IFaceD && ImplD && "Passed null params")(static_cast <bool> (IFaceD && ImplD && "Passed null params") ? void (0) : __assert_fail ("IFaceD && ImplD && \"Passed null params\"" , "clang/lib/AST/ASTContext.cpp", 2890, __extension__ __PRETTY_FUNCTION__ )); | |||
| 2891 | ObjCImpls[IFaceD] = ImplD; | |||
| 2892 | } | |||
| 2893 | ||||
| 2894 | /// Set the implementation of ObjCCategoryDecl. | |||
| 2895 | void ASTContext::setObjCImplementation(ObjCCategoryDecl *CatD, | |||
| 2896 | ObjCCategoryImplDecl *ImplD) { | |||
| 2897 | assert(CatD && ImplD && "Passed null params")(static_cast <bool> (CatD && ImplD && "Passed null params" ) ? void (0) : __assert_fail ("CatD && ImplD && \"Passed null params\"" , "clang/lib/AST/ASTContext.cpp", 2897, __extension__ __PRETTY_FUNCTION__ )); | |||
| 2898 | ObjCImpls[CatD] = ImplD; | |||
| 2899 | } | |||
| 2900 | ||||
| 2901 | const ObjCMethodDecl * | |||
| 2902 | ASTContext::getObjCMethodRedeclaration(const ObjCMethodDecl *MD) const { | |||
| 2903 | return ObjCMethodRedecls.lookup(MD); | |||
| 2904 | } | |||
| 2905 | ||||
| 2906 | void ASTContext::setObjCMethodRedeclaration(const ObjCMethodDecl *MD, | |||
| 2907 | const ObjCMethodDecl *Redecl) { | |||
| 2908 | assert(!getObjCMethodRedeclaration(MD) && "MD already has a redeclaration")(static_cast <bool> (!getObjCMethodRedeclaration(MD) && "MD already has a redeclaration") ? void (0) : __assert_fail ("!getObjCMethodRedeclaration(MD) && \"MD already has a redeclaration\"" , "clang/lib/AST/ASTContext.cpp", 2908, __extension__ __PRETTY_FUNCTION__ )); | |||
| 2909 | ObjCMethodRedecls[MD] = Redecl; | |||
| 2910 | } | |||
| 2911 | ||||
| 2912 | const ObjCInterfaceDecl *ASTContext::getObjContainingInterface( | |||
| 2913 | const NamedDecl *ND) const { | |||
| 2914 | if (const auto *ID = dyn_cast<ObjCInterfaceDecl>(ND->getDeclContext())) | |||
| 2915 | return ID; | |||
| 2916 | if (const auto *CD = dyn_cast<ObjCCategoryDecl>(ND->getDeclContext())) | |||
| 2917 | return CD->getClassInterface(); | |||
| 2918 | if (const auto *IMD = dyn_cast<ObjCImplDecl>(ND->getDeclContext())) | |||
| 2919 | return IMD->getClassInterface(); | |||
| 2920 | ||||
| 2921 | return nullptr; | |||
| 2922 | } | |||
| 2923 | ||||
| 2924 | /// Get the copy initialization expression of VarDecl, or nullptr if | |||
| 2925 | /// none exists. | |||
| 2926 | BlockVarCopyInit ASTContext::getBlockVarCopyInit(const VarDecl *VD) const { | |||
| 2927 | assert(VD && "Passed null params")(static_cast <bool> (VD && "Passed null params" ) ? void (0) : __assert_fail ("VD && \"Passed null params\"" , "clang/lib/AST/ASTContext.cpp", 2927, __extension__ __PRETTY_FUNCTION__ )); | |||
| 2928 | assert(VD->hasAttr<BlocksAttr>() &&(static_cast <bool> (VD->hasAttr<BlocksAttr>() && "getBlockVarCopyInits - not __block var") ? void ( 0) : __assert_fail ("VD->hasAttr<BlocksAttr>() && \"getBlockVarCopyInits - not __block var\"" , "clang/lib/AST/ASTContext.cpp", 2929, __extension__ __PRETTY_FUNCTION__ )) | |||
| 2929 | "getBlockVarCopyInits - not __block var")(static_cast <bool> (VD->hasAttr<BlocksAttr>() && "getBlockVarCopyInits - not __block var") ? void ( 0) : __assert_fail ("VD->hasAttr<BlocksAttr>() && \"getBlockVarCopyInits - not __block var\"" , "clang/lib/AST/ASTContext.cpp", 2929, __extension__ __PRETTY_FUNCTION__ )); | |||
| 2930 | auto I = BlockVarCopyInits.find(VD); | |||
| 2931 | if (I != BlockVarCopyInits.end()) | |||
| 2932 | return I->second; | |||
| 2933 | return {nullptr, false}; | |||
| 2934 | } | |||
| 2935 | ||||
| 2936 | /// Set the copy initialization expression of a block var decl. | |||
| 2937 | void ASTContext::setBlockVarCopyInit(const VarDecl*VD, Expr *CopyExpr, | |||
| 2938 | bool CanThrow) { | |||
| 2939 | assert(VD && CopyExpr && "Passed null params")(static_cast <bool> (VD && CopyExpr && "Passed null params" ) ? void (0) : __assert_fail ("VD && CopyExpr && \"Passed null params\"" , "clang/lib/AST/ASTContext.cpp", 2939, __extension__ __PRETTY_FUNCTION__ )); | |||
| 2940 | assert(VD->hasAttr<BlocksAttr>() &&(static_cast <bool> (VD->hasAttr<BlocksAttr>() && "setBlockVarCopyInits - not __block var") ? void ( 0) : __assert_fail ("VD->hasAttr<BlocksAttr>() && \"setBlockVarCopyInits - not __block var\"" , "clang/lib/AST/ASTContext.cpp", 2941, __extension__ __PRETTY_FUNCTION__ )) | |||
| 2941 | "setBlockVarCopyInits - not __block var")(static_cast <bool> (VD->hasAttr<BlocksAttr>() && "setBlockVarCopyInits - not __block var") ? void ( 0) : __assert_fail ("VD->hasAttr<BlocksAttr>() && \"setBlockVarCopyInits - not __block var\"" , "clang/lib/AST/ASTContext.cpp", 2941, __extension__ __PRETTY_FUNCTION__ )); | |||
| 2942 | BlockVarCopyInits[VD].setExprAndFlag(CopyExpr, CanThrow); | |||
| 2943 | } | |||
| 2944 | ||||
| 2945 | TypeSourceInfo *ASTContext::CreateTypeSourceInfo(QualType T, | |||
| 2946 | unsigned DataSize) const { | |||
| 2947 | if (!DataSize) | |||
| 2948 | DataSize = TypeLoc::getFullDataSizeForType(T); | |||
| 2949 | else | |||
| 2950 | assert(DataSize == TypeLoc::getFullDataSizeForType(T) &&(static_cast <bool> (DataSize == TypeLoc::getFullDataSizeForType (T) && "incorrect data size provided to CreateTypeSourceInfo!" ) ? void (0) : __assert_fail ("DataSize == TypeLoc::getFullDataSizeForType(T) && \"incorrect data size provided to CreateTypeSourceInfo!\"" , "clang/lib/AST/ASTContext.cpp", 2951, __extension__ __PRETTY_FUNCTION__ )) | |||
| 2951 | "incorrect data size provided to CreateTypeSourceInfo!")(static_cast <bool> (DataSize == TypeLoc::getFullDataSizeForType (T) && "incorrect data size provided to CreateTypeSourceInfo!" ) ? void (0) : __assert_fail ("DataSize == TypeLoc::getFullDataSizeForType(T) && \"incorrect data size provided to CreateTypeSourceInfo!\"" , "clang/lib/AST/ASTContext.cpp", 2951, __extension__ __PRETTY_FUNCTION__ )); | |||
| 2952 | ||||
| 2953 | auto *TInfo = | |||
| 2954 | (TypeSourceInfo*)BumpAlloc.Allocate(sizeof(TypeSourceInfo) + DataSize, 8); | |||
| 2955 | new (TInfo) TypeSourceInfo(T); | |||
| 2956 | return TInfo; | |||
| 2957 | } | |||
| 2958 | ||||
| 2959 | TypeSourceInfo *ASTContext::getTrivialTypeSourceInfo(QualType T, | |||
| 2960 | SourceLocation L) const { | |||
| 2961 | TypeSourceInfo *DI = CreateTypeSourceInfo(T); | |||
| 2962 | DI->getTypeLoc().initialize(const_cast<ASTContext &>(*this), L); | |||
| 2963 | return DI; | |||
| 2964 | } | |||
| 2965 | ||||
| 2966 | const ASTRecordLayout & | |||
| 2967 | ASTContext::getASTObjCInterfaceLayout(const ObjCInterfaceDecl *D) const { | |||
| 2968 | return getObjCLayout(D, nullptr); | |||
| 2969 | } | |||
| 2970 | ||||
| 2971 | const ASTRecordLayout & | |||
| 2972 | ASTContext::getASTObjCImplementationLayout( | |||
| 2973 | const ObjCImplementationDecl *D) const { | |||
| 2974 | return getObjCLayout(D->getClassInterface(), D); | |||
| 2975 | } | |||
| 2976 | ||||
| 2977 | //===----------------------------------------------------------------------===// | |||
| 2978 | // Type creation/memoization methods | |||
| 2979 | //===----------------------------------------------------------------------===// | |||
| 2980 | ||||
| 2981 | QualType | |||
| 2982 | ASTContext::getExtQualType(const Type *baseType, Qualifiers quals) const { | |||
| 2983 | unsigned fastQuals = quals.getFastQualifiers(); | |||
| 2984 | quals.removeFastQualifiers(); | |||
| 2985 | ||||
| 2986 | // Check if we've already instantiated this type. | |||
| 2987 | llvm::FoldingSetNodeID ID; | |||
| 2988 | ExtQuals::Profile(ID, baseType, quals); | |||
| 2989 | void *insertPos = nullptr; | |||
| 2990 | if (ExtQuals *eq = ExtQualNodes.FindNodeOrInsertPos(ID, insertPos)) { | |||
| 2991 | assert(eq->getQualifiers() == quals)(static_cast <bool> (eq->getQualifiers() == quals) ? void (0) : __assert_fail ("eq->getQualifiers() == quals", "clang/lib/AST/ASTContext.cpp", 2991, __extension__ __PRETTY_FUNCTION__ )); | |||
| 2992 | return QualType(eq, fastQuals); | |||
| 2993 | } | |||
| 2994 | ||||
| 2995 | // If the base type is not canonical, make the appropriate canonical type. | |||
| 2996 | QualType canon; | |||
| 2997 | if (!baseType->isCanonicalUnqualified()) { | |||
| 2998 | SplitQualType canonSplit = baseType->getCanonicalTypeInternal().split(); | |||
| 2999 | canonSplit.Quals.addConsistentQualifiers(quals); | |||
| 3000 | canon = getExtQualType(canonSplit.Ty, canonSplit.Quals); | |||
| 3001 | ||||
| 3002 | // Re-find the insert position. | |||
| 3003 | (void) ExtQualNodes.FindNodeOrInsertPos(ID, insertPos); | |||
| 3004 | } | |||
| 3005 | ||||
| 3006 | auto *eq = new (*this, TypeAlignment) ExtQuals(baseType, canon, quals); | |||
| 3007 | ExtQualNodes.InsertNode(eq, insertPos); | |||
| 3008 | return QualType(eq, fastQuals); | |||
| 3009 | } | |||
| 3010 | ||||
| 3011 | QualType ASTContext::getAddrSpaceQualType(QualType T, | |||
| 3012 | LangAS AddressSpace) const { | |||
| 3013 | QualType CanT = getCanonicalType(T); | |||
| 3014 | if (CanT.getAddressSpace() == AddressSpace) | |||
| 3015 | return T; | |||
| 3016 | ||||
| 3017 | // If we are composing extended qualifiers together, merge together | |||
| 3018 | // into one ExtQuals node. | |||
| 3019 | QualifierCollector Quals; | |||
| 3020 | const Type *TypeNode = Quals.strip(T); | |||
| 3021 | ||||
| 3022 | // If this type already has an address space specified, it cannot get | |||
| 3023 | // another one. | |||
| 3024 | assert(!Quals.hasAddressSpace() &&(static_cast <bool> (!Quals.hasAddressSpace() && "Type cannot be in multiple addr spaces!") ? void (0) : __assert_fail ("!Quals.hasAddressSpace() && \"Type cannot be in multiple addr spaces!\"" , "clang/lib/AST/ASTContext.cpp", 3025, __extension__ __PRETTY_FUNCTION__ )) | |||
| 3025 | "Type cannot be in multiple addr spaces!")(static_cast <bool> (!Quals.hasAddressSpace() && "Type cannot be in multiple addr spaces!") ? void (0) : __assert_fail ("!Quals.hasAddressSpace() && \"Type cannot be in multiple addr spaces!\"" , "clang/lib/AST/ASTContext.cpp", 3025, __extension__ __PRETTY_FUNCTION__ )); | |||
| 3026 | Quals.addAddressSpace(AddressSpace); | |||
| 3027 | ||||
| 3028 | return getExtQualType(TypeNode, Quals); | |||
| 3029 | } | |||
| 3030 | ||||
| 3031 | QualType ASTContext::removeAddrSpaceQualType(QualType T) const { | |||
| 3032 | // If the type is not qualified with an address space, just return it | |||
| 3033 | // immediately. | |||
| 3034 | if (!T.hasAddressSpace()) | |||
| 3035 | return T; | |||
| 3036 | ||||
| 3037 | // If we are composing extended qualifiers together, merge together | |||
| 3038 | // into one ExtQuals node. | |||
| 3039 | QualifierCollector Quals; | |||
| 3040 | const Type *TypeNode; | |||
| 3041 | ||||
| 3042 | while (T.hasAddressSpace()) { | |||
| 3043 | TypeNode = Quals.strip(T); | |||
| 3044 | ||||
| 3045 | // If the type no longer has an address space after stripping qualifiers, | |||
| 3046 | // jump out. | |||
| 3047 | if (!QualType(TypeNode, 0).hasAddressSpace()) | |||
| 3048 | break; | |||
| 3049 | ||||
| 3050 | // There might be sugar in the way. Strip it and try again. | |||
| 3051 | T = T.getSingleStepDesugaredType(*this); | |||
| 3052 | } | |||
| 3053 | ||||
| 3054 | Quals.removeAddressSpace(); | |||
| 3055 | ||||
| 3056 | // Removal of the address space can mean there are no longer any | |||
| 3057 | // non-fast qualifiers, so creating an ExtQualType isn't possible (asserts) | |||
| 3058 | // or required. | |||
| 3059 | if (Quals.hasNonFastQualifiers()) | |||
| 3060 | return getExtQualType(TypeNode, Quals); | |||
| ||||
| 3061 | else | |||
| 3062 | return QualType(TypeNode, Quals.getFastQualifiers()); | |||
| 3063 | } | |||
| 3064 | ||||
| 3065 | QualType ASTContext::getObjCGCQualType(QualType T, | |||
| 3066 | Qualifiers::GC GCAttr) const { | |||
| 3067 | QualType CanT = getCanonicalType(T); | |||
| 3068 | if (CanT.getObjCGCAttr() == GCAttr) | |||
| 3069 | return T; | |||
| 3070 | ||||
| 3071 | if (const auto *ptr = T->getAs<PointerType>()) { | |||
| 3072 | QualType Pointee = ptr->getPointeeType(); | |||
| 3073 | if (Pointee->isAnyPointerType()) { | |||
| 3074 | QualType ResultType = getObjCGCQualType(Pointee, GCAttr); | |||
| 3075 | return getPointerType(ResultType); | |||
| 3076 | } | |||
| 3077 | } | |||
| 3078 | ||||
| 3079 | // If we are composing extended qualifiers together, merge together | |||
| 3080 | // into one ExtQuals node. | |||
| 3081 | QualifierCollector Quals; | |||
| 3082 | const Type *TypeNode = Quals.strip(T); | |||
| 3083 | ||||
| 3084 | // If this type already has an ObjCGC specified, it cannot get | |||
| 3085 | // another one. | |||
| 3086 | assert(!Quals.hasObjCGCAttr() &&(static_cast <bool> (!Quals.hasObjCGCAttr() && "Type cannot have multiple ObjCGCs!" ) ? void (0) : __assert_fail ("!Quals.hasObjCGCAttr() && \"Type cannot have multiple ObjCGCs!\"" , "clang/lib/AST/ASTContext.cpp", 3087, __extension__ __PRETTY_FUNCTION__ )) | |||
| 3087 | "Type cannot have multiple ObjCGCs!")(static_cast <bool> (!Quals.hasObjCGCAttr() && "Type cannot have multiple ObjCGCs!" ) ? void (0) : __assert_fail ("!Quals.hasObjCGCAttr() && \"Type cannot have multiple ObjCGCs!\"" , "clang/lib/AST/ASTContext.cpp", 3087, __extension__ __PRETTY_FUNCTION__ )); | |||
| 3088 | Quals.addObjCGCAttr(GCAttr); | |||
| 3089 | ||||
| 3090 | return getExtQualType(TypeNode, Quals); | |||
| 3091 | } | |||
| 3092 | ||||
| 3093 | QualType ASTContext::removePtrSizeAddrSpace(QualType T) const { | |||
| 3094 | if (const PointerType *Ptr = T->getAs<PointerType>()) { | |||
| 3095 | QualType Pointee = Ptr->getPointeeType(); | |||
| 3096 | if (isPtrSizeAddressSpace(Pointee.getAddressSpace())) { | |||
| 3097 | return getPointerType(removeAddrSpaceQualType(Pointee)); | |||
| 3098 | } | |||
| 3099 | } | |||
| 3100 | return T; | |||
| 3101 | } | |||
| 3102 | ||||
| 3103 | const FunctionType *ASTContext::adjustFunctionType(const FunctionType *T, | |||
| 3104 | FunctionType::ExtInfo Info) { | |||
| 3105 | if (T->getExtInfo() == Info) | |||
| 3106 | return T; | |||
| 3107 | ||||
| 3108 | QualType Result; | |||
| 3109 | if (const auto *FNPT = dyn_cast<FunctionNoProtoType>(T)) { | |||
| 3110 | Result = getFunctionNoProtoType(FNPT->getReturnType(), Info); | |||
| 3111 | } else { | |||
| 3112 | const auto *FPT = cast<FunctionProtoType>(T); | |||
| 3113 | FunctionProtoType::ExtProtoInfo EPI = FPT->getExtProtoInfo(); | |||
| 3114 | EPI.ExtInfo = Info; | |||
| 3115 | Result = getFunctionType(FPT->getReturnType(), FPT->getParamTypes(), EPI); | |||
| 3116 | } | |||
| 3117 | ||||
| 3118 | return cast<FunctionType>(Result.getTypePtr()); | |||
| 3119 | } | |||
| 3120 | ||||
| 3121 | void ASTContext::adjustDeducedFunctionResultType(FunctionDecl *FD, | |||
| 3122 | QualType ResultType) { | |||
| 3123 | FD = FD->getMostRecentDecl(); | |||
| 3124 | while (true) { | |||
| 3125 | const auto *FPT = FD->getType()->castAs<FunctionProtoType>(); | |||
| 3126 | FunctionProtoType::ExtProtoInfo EPI = FPT->getExtProtoInfo(); | |||
| 3127 | FD->setType(getFunctionType(ResultType, FPT->getParamTypes(), EPI)); | |||
| 3128 | if (FunctionDecl *Next = FD->getPreviousDecl()) | |||
| 3129 | FD = Next; | |||
| 3130 | else | |||
| 3131 | break; | |||
| 3132 | } | |||
| 3133 | if (ASTMutationListener *L = getASTMutationListener()) | |||
| 3134 | L->DeducedReturnType(FD, ResultType); | |||
| 3135 | } | |||
| 3136 | ||||
| 3137 | /// Get a function type and produce the equivalent function type with the | |||
| 3138 | /// specified exception specification. Type sugar that can be present on a | |||
| 3139 | /// declaration of a function with an exception specification is permitted | |||
| 3140 | /// and preserved. Other type sugar (for instance, typedefs) is not. | |||
| 3141 | QualType ASTContext::getFunctionTypeWithExceptionSpec( | |||
| 3142 | QualType Orig, const FunctionProtoType::ExceptionSpecInfo &ESI) { | |||
| 3143 | // Might have some parens. | |||
| 3144 | if (const auto *PT = dyn_cast<ParenType>(Orig)) | |||
| 3145 | return getParenType( | |||
| 3146 | getFunctionTypeWithExceptionSpec(PT->getInnerType(), ESI)); | |||
| 3147 | ||||
| 3148 | // Might be wrapped in a macro qualified type. | |||
| 3149 | if (const auto *MQT = dyn_cast<MacroQualifiedType>(Orig)) | |||
| 3150 | return getMacroQualifiedType( | |||
| 3151 | getFunctionTypeWithExceptionSpec(MQT->getUnderlyingType(), ESI), | |||
| 3152 | MQT->getMacroIdentifier()); | |||
| 3153 | ||||
| 3154 | // Might have a calling-convention attribute. | |||
| 3155 | if (const auto *AT = dyn_cast<AttributedType>(Orig)) | |||
| 3156 | return getAttributedType( | |||
| 3157 | AT->getAttrKind(), | |||
| 3158 | getFunctionTypeWithExceptionSpec(AT->getModifiedType(), ESI), | |||
| 3159 | getFunctionTypeWithExceptionSpec(AT->getEquivalentType(), ESI)); | |||
| 3160 | ||||
| 3161 | // Anything else must be a function type. Rebuild it with the new exception | |||
| 3162 | // specification. | |||
| 3163 | const auto *Proto = Orig->castAs<FunctionProtoType>(); | |||
| 3164 | return getFunctionType( | |||
| 3165 | Proto->getReturnType(), Proto->getParamTypes(), | |||
| 3166 | Proto->getExtProtoInfo().withExceptionSpec(ESI)); | |||
| 3167 | } | |||
| 3168 | ||||
| 3169 | bool ASTContext::hasSameFunctionTypeIgnoringExceptionSpec(QualType T, | |||
| 3170 | QualType U) { | |||
| 3171 | return hasSameType(T, U) || | |||
| 3172 | (getLangOpts().CPlusPlus17 && | |||
| 3173 | hasSameType(getFunctionTypeWithExceptionSpec(T, EST_None), | |||
| 3174 | getFunctionTypeWithExceptionSpec(U, EST_None))); | |||
| 3175 | } | |||
| 3176 | ||||
| 3177 | QualType ASTContext::getFunctionTypeWithoutPtrSizes(QualType T) { | |||
| 3178 | if (const auto *Proto = T->getAs<FunctionProtoType>()) { | |||
| 3179 | QualType RetTy = removePtrSizeAddrSpace(Proto->getReturnType()); | |||
| 3180 | SmallVector<QualType, 16> Args(Proto->param_types()); | |||
| 3181 | for (unsigned i = 0, n = Args.size(); i != n; ++i) | |||
| 3182 | Args[i] = removePtrSizeAddrSpace(Args[i]); | |||
| 3183 | return getFunctionType(RetTy, Args, Proto->getExtProtoInfo()); | |||
| 3184 | } | |||
| 3185 | ||||
| 3186 | if (const FunctionNoProtoType *Proto = T->getAs<FunctionNoProtoType>()) { | |||
| 3187 | QualType RetTy = removePtrSizeAddrSpace(Proto->getReturnType()); | |||
| 3188 | return getFunctionNoProtoType(RetTy, Proto->getExtInfo()); | |||
| 3189 | } | |||
| 3190 | ||||
| 3191 | return T; | |||
| 3192 | } | |||
| 3193 | ||||
| 3194 | bool ASTContext::hasSameFunctionTypeIgnoringPtrSizes(QualType T, QualType U) { | |||
| 3195 | return hasSameType(T, U) || | |||
| ||||
| 3196 | hasSameType(getFunctionTypeWithoutPtrSizes(T), | |||
| 3197 | getFunctionTypeWithoutPtrSizes(U)); | |||
| 3198 | } | |||
| 3199 | ||||
| 3200 | void ASTContext::adjustExceptionSpec( | |||
| 3201 | FunctionDecl *FD, const FunctionProtoType::ExceptionSpecInfo &ESI, | |||
| 3202 | bool AsWritten) { | |||
| 3203 | // Update the type. | |||
| 3204 | QualType Updated = | |||
| 3205 | getFunctionTypeWithExceptionSpec(FD->getType(), ESI); | |||
| 3206 | FD->setType(Updated); | |||
| 3207 | ||||
| 3208 | if (!AsWritten) | |||
| 3209 | return; | |||
| 3210 | ||||
| 3211 | // Update the type in the type source information too. | |||
| 3212 | if (TypeSourceInfo *TSInfo = FD->getTypeSourceInfo()) { | |||
| 3213 | // If the type and the type-as-written differ, we may need to update | |||
| 3214 | // the type-as-written too. | |||
| 3215 | if (TSInfo->getType() != FD->getType()) | |||
| 3216 | Updated = getFunctionTypeWithExceptionSpec(TSInfo->getType(), ESI); | |||
| 3217 | ||||
| 3218 | // FIXME: When we get proper type location information for exceptions, | |||
| 3219 | // we'll also have to rebuild the TypeSourceInfo. For now, we just patch | |||
| 3220 | // up the TypeSourceInfo; | |||
| 3221 | assert(TypeLoc::getFullDataSizeForType(Updated) ==(static_cast <bool> (TypeLoc::getFullDataSizeForType(Updated ) == TypeLoc::getFullDataSizeForType(TSInfo->getType()) && "TypeLoc size mismatch from updating exception specification" ) ? void (0) : __assert_fail ("TypeLoc::getFullDataSizeForType(Updated) == TypeLoc::getFullDataSizeForType(TSInfo->getType()) && \"TypeLoc size mismatch from updating exception specification\"" , "clang/lib/AST/ASTContext.cpp", 3223, __extension__ __PRETTY_FUNCTION__ )) | |||
| 3222 | TypeLoc::getFullDataSizeForType(TSInfo->getType()) &&(static_cast <bool> (TypeLoc::getFullDataSizeForType(Updated ) == TypeLoc::getFullDataSizeForType(TSInfo->getType()) && "TypeLoc size mismatch from updating exception specification" ) ? void (0) : __assert_fail ("TypeLoc::getFullDataSizeForType(Updated) == TypeLoc::getFullDataSizeForType(TSInfo->getType()) && \"TypeLoc size mismatch from updating exception specification\"" , "clang/lib/AST/ASTContext.cpp", 3223, __extension__ __PRETTY_FUNCTION__ )) | |||
| 3223 | "TypeLoc size mismatch from updating exception specification")(static_cast <bool> (TypeLoc::getFullDataSizeForType(Updated ) == TypeLoc::getFullDataSizeForType(TSInfo->getType()) && "TypeLoc size mismatch from updating exception specification" ) ? void (0) : __assert_fail ("TypeLoc::getFullDataSizeForType(Updated) == TypeLoc::getFullDataSizeForType(TSInfo->getType()) && \"TypeLoc size mismatch from updating exception specification\"" , "clang/lib/AST/ASTContext.cpp", 3223, __extension__ __PRETTY_FUNCTION__ )); | |||
| 3224 | TSInfo->overrideType(Updated); | |||
| 3225 | } | |||
| 3226 | } | |||
| 3227 | ||||
| 3228 | /// getComplexType - Return the uniqued reference to the type for a complex | |||
| 3229 | /// number with the specified element type. | |||
| 3230 | QualType ASTContext::getComplexType(QualType T) const { | |||
| 3231 | // Unique pointers, to guarantee there is only one pointer of a particular | |||
| 3232 | // structure. | |||
| 3233 | llvm::FoldingSetNodeID ID; | |||
| 3234 | ComplexType::Profile(ID, T); | |||
| 3235 | ||||
| 3236 | void *InsertPos = nullptr; | |||
| 3237 | if (ComplexType *CT = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
| 3238 | return QualType(CT, 0); | |||
| 3239 | ||||
| 3240 | // If the pointee type isn't canonical, this won't be a canonical type either, | |||
| 3241 | // so fill in the canonical type field. | |||
| 3242 | QualType Canonical; | |||
| 3243 | if (!T.isCanonical()) { | |||
| 3244 | Canonical = getComplexType(getCanonicalType(T)); | |||
| 3245 | ||||
| 3246 | // Get the new insert position for the node we care about. | |||
| 3247 | ComplexType *NewIP = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
| 3248 | assert(!NewIP && "Shouldn't be in the map!")(static_cast <bool> (!NewIP && "Shouldn't be in the map!" ) ? void (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\"" , "clang/lib/AST/ASTContext.cpp", 3248, __extension__ __PRETTY_FUNCTION__ )); (void)NewIP; | |||
| 3249 | } | |||
| 3250 | auto *New = new (*this, TypeAlignment) ComplexType(T, Canonical); | |||
| 3251 | Types.push_back(New); | |||
| 3252 | ComplexTypes.InsertNode(New, InsertPos); | |||
| 3253 | return QualType(New, 0); | |||
| 3254 | } | |||
| 3255 | ||||
| 3256 | /// getPointerType - Return the uniqued reference to the type for a pointer to | |||
| 3257 | /// the specified type. | |||
| 3258 | QualType ASTContext::getPointerType(QualType T) const { | |||
| 3259 | // Unique pointers, to guarantee there is only one pointer of a particular | |||
| 3260 | // structure. | |||
| 3261 | llvm::FoldingSetNodeID ID; | |||
| 3262 | PointerType::Profile(ID, T); | |||
| 3263 | ||||
| 3264 | void *InsertPos = nullptr; | |||
| 3265 | if (PointerType *PT = PointerTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
| 3266 | return QualType(PT, 0); | |||
| 3267 | ||||
| 3268 | // If the pointee type isn't canonical, this won't be a canonical type either, | |||
| 3269 | // so fill in the canonical type field. | |||
| 3270 | QualType Canonical; | |||
| 3271 | if (!T.isCanonical()) { | |||
| 3272 | Canonical = getPointerType(getCanonicalType(T)); | |||
| 3273 | ||||
| 3274 | // Get the new insert position for the node we care about. | |||
| 3275 | PointerType *NewIP = PointerTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
| 3276 | assert(!NewIP && "Shouldn't be in the map!")(static_cast <bool> (!NewIP && "Shouldn't be in the map!" ) ? void (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\"" , "clang/lib/AST/ASTContext.cpp", 3276, __extension__ __PRETTY_FUNCTION__ )); (void)NewIP; | |||
| 3277 | } | |||
| 3278 | auto *New = new (*this, TypeAlignment) PointerType(T, Canonical); | |||
| 3279 | Types.push_back(New); | |||
| 3280 | PointerTypes.InsertNode(New, InsertPos); | |||
| 3281 | return QualType(New, 0); | |||
| 3282 | } | |||
| 3283 | ||||
| 3284 | QualType ASTContext::getAdjustedType(QualType Orig, QualType New) const { | |||
| 3285 | llvm::FoldingSetNodeID ID; | |||
| 3286 | AdjustedType::Profile(ID, Orig, New); | |||
| 3287 | void *InsertPos = nullptr; | |||
| 3288 | AdjustedType *AT = AdjustedTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
| 3289 | if (AT) | |||
| 3290 | return QualType(AT, 0); | |||
| 3291 | ||||
| 3292 | QualType Canonical = getCanonicalType(New); | |||
| 3293 | ||||
| 3294 | // Get the new insert position for the node we care about. | |||
| 3295 | AT = AdjustedTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
| 3296 | assert(!AT && "Shouldn't be in the map!")(static_cast <bool> (!AT && "Shouldn't be in the map!" ) ? void (0) : __assert_fail ("!AT && \"Shouldn't be in the map!\"" , "clang/lib/AST/ASTContext.cpp", 3296, __extension__ __PRETTY_FUNCTION__ )); | |||
| 3297 | ||||
| 3298 | AT = new (*this, TypeAlignment) | |||
| 3299 | AdjustedType(Type::Adjusted, Orig, New, Canonical); | |||
| 3300 | Types.push_back(AT); | |||
| 3301 | AdjustedTypes.InsertNode(AT, InsertPos); | |||
| 3302 | return QualType(AT, 0); | |||
| 3303 | } | |||
| 3304 | ||||
| 3305 | QualType ASTContext::getDecayedType(QualType T) const { | |||
| 3306 | assert((T->isArrayType() || T->isFunctionType()) && "T does not decay")(static_cast <bool> ((T->isArrayType() || T->isFunctionType ()) && "T does not decay") ? void (0) : __assert_fail ("(T->isArrayType() || T->isFunctionType()) && \"T does not decay\"" , "clang/lib/AST/ASTContext.cpp", 3306, __extension__ __PRETTY_FUNCTION__ )); | |||
| 3307 | ||||
| 3308 | QualType Decayed; | |||
| 3309 | ||||
| 3310 | // C99 6.7.5.3p7: | |||
| 3311 | // A declaration of a parameter as "array of type" shall be | |||
| 3312 | // adjusted to "qualified pointer to type", where the type | |||
| 3313 | // qualifiers (if any) are those specified within the [ and ] of | |||
| 3314 | // the array type derivation. | |||
| 3315 | if (T->isArrayType()) | |||
| 3316 | Decayed = getArrayDecayedType(T); | |||
| 3317 | ||||
| 3318 | // C99 6.7.5.3p8: | |||
| 3319 | // A declaration of a parameter as "function returning type" | |||
| 3320 | // shall be adjusted to "pointer to function returning type", as | |||
| 3321 | // in 6.3.2.1. | |||
| 3322 | if (T->isFunctionType()) | |||
| 3323 | Decayed = getPointerType(T); | |||
| 3324 | ||||
| 3325 | llvm::FoldingSetNodeID ID; | |||
| 3326 | AdjustedType::Profile(ID, T, Decayed); | |||
| 3327 | void *InsertPos = nullptr; | |||
| 3328 | AdjustedType *AT = AdjustedTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
| 3329 | if (AT) | |||
| 3330 | return QualType(AT, 0); | |||
| 3331 | ||||
| 3332 | QualType Canonical = getCanonicalType(Decayed); | |||
| 3333 | ||||
| 3334 | // Get the new insert position for the node we care about. | |||
| 3335 | AT = AdjustedTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
| 3336 | assert(!AT && "Shouldn't be in the map!")(static_cast <bool> (!AT && "Shouldn't be in the map!" ) ? void (0) : __assert_fail ("!AT && \"Shouldn't be in the map!\"" , "clang/lib/AST/ASTContext.cpp", 3336, __extension__ __PRETTY_FUNCTION__ )); | |||
| 3337 | ||||
| 3338 | AT = new (*this, TypeAlignment) DecayedType(T, Decayed, Canonical); | |||
| 3339 | Types.push_back(AT); | |||
| 3340 | AdjustedTypes.InsertNode(AT, InsertPos); | |||
| 3341 | return QualType(AT, 0); | |||
| 3342 | } | |||
| 3343 | ||||
| 3344 | /// getBlockPointerType - Return the uniqued reference to the type for | |||
| 3345 | /// a pointer to the specified block. | |||
| 3346 | QualType ASTContext::getBlockPointerType(QualType T) const { | |||
| 3347 | assert(T->isFunctionType() && "block of function types only")(static_cast <bool> (T->isFunctionType() && "block of function types only" ) ? void (0) : __assert_fail ("T->isFunctionType() && \"block of function types only\"" , "clang/lib/AST/ASTContext.cpp", 3347, __extension__ __PRETTY_FUNCTION__ )); | |||
| 3348 | // Unique pointers, to guarantee there is only one block of a particular | |||
| 3349 | // structure. | |||
| 3350 | llvm::FoldingSetNodeID ID; | |||
| 3351 | BlockPointerType::Profile(ID, T); | |||
| 3352 | ||||
| 3353 | void *InsertPos = nullptr; | |||
| 3354 | if (BlockPointerType *PT = | |||
| 3355 | BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
| 3356 | return QualType(PT, 0); | |||
| 3357 | ||||
| 3358 | // If the block pointee type isn't canonical, this won't be a canonical | |||
| 3359 | // type either so fill in the canonical type field. | |||
| 3360 | QualType Canonical; | |||
| 3361 | if (!T.isCanonical()) { | |||
| 3362 | Canonical = getBlockPointerType(getCanonicalType(T)); | |||
| 3363 | ||||
| 3364 | // Get the new insert position for the node we care about. | |||
| 3365 | BlockPointerType *NewIP = | |||
| 3366 | BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
| 3367 | assert(!NewIP && "Shouldn't be in the map!")(static_cast <bool> (!NewIP && "Shouldn't be in the map!" ) ? void (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\"" , "clang/lib/AST/ASTContext.cpp", 3367, __extension__ __PRETTY_FUNCTION__ )); (void)NewIP; | |||
| 3368 | } | |||
| 3369 | auto *New = new (*this, TypeAlignment) BlockPointerType(T, Canonical); | |||
| 3370 | Types.push_back(New); | |||
| 3371 | BlockPointerTypes.InsertNode(New, InsertPos); | |||
| 3372 | return QualType(New, 0); | |||
| 3373 | } | |||
| 3374 | ||||
| 3375 | /// getLValueReferenceType - Return the uniqued reference to the type for an | |||
| 3376 | /// lvalue reference to the specified type. | |||
| 3377 | QualType | |||
| 3378 | ASTContext::getLValueReferenceType(QualType T, bool SpelledAsLValue) const { | |||
| 3379 | assert((!T->isPlaceholderType() ||(static_cast <bool> ((!T->isPlaceholderType() || T-> isSpecificPlaceholderType(BuiltinType::UnknownAny)) && "Unresolved placeholder type") ? void (0) : __assert_fail ("(!T->isPlaceholderType() || T->isSpecificPlaceholderType(BuiltinType::UnknownAny)) && \"Unresolved placeholder type\"" , "clang/lib/AST/ASTContext.cpp", 3381, __extension__ __PRETTY_FUNCTION__ )) | |||
| 3380 | T->isSpecificPlaceholderType(BuiltinType::UnknownAny)) &&(static_cast <bool> ((!T->isPlaceholderType() || T-> isSpecificPlaceholderType(BuiltinType::UnknownAny)) && "Unresolved placeholder type") ? void (0) : __assert_fail ("(!T->isPlaceholderType() || T->isSpecificPlaceholderType(BuiltinType::UnknownAny)) && \"Unresolved placeholder type\"" , "clang/lib/AST/ASTContext.cpp", 3381, __extension__ __PRETTY_FUNCTION__ )) | |||
| 3381 | "Unresolved placeholder type")(static_cast <bool> ((!T->isPlaceholderType() || T-> isSpecificPlaceholderType(BuiltinType::UnknownAny)) && "Unresolved placeholder type") ? void (0) : __assert_fail ("(!T->isPlaceholderType() || T->isSpecificPlaceholderType(BuiltinType::UnknownAny)) && \"Unresolved placeholder type\"" , "clang/lib/AST/ASTContext.cpp", 3381, __extension__ __PRETTY_FUNCTION__ )); | |||
| 3382 | ||||
| 3383 | // Unique pointers, to guarantee there is only one pointer of a particular | |||
| 3384 | // structure. | |||
| 3385 | llvm::FoldingSetNodeID ID; | |||
| 3386 | ReferenceType::Profile(ID, T, SpelledAsLValue); | |||
| 3387 | ||||
| 3388 | void *InsertPos = nullptr; | |||
| 3389 | if (LValueReferenceType *RT = | |||
| 3390 | LValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
| 3391 | return QualType(RT, 0); | |||
| 3392 | ||||
| 3393 | const auto *InnerRef = T->getAs<ReferenceType>(); | |||
| 3394 | ||||
| 3395 | // If the referencee type isn't canonical, this won't be a canonical type | |||
| 3396 | // either, so fill in the canonical type field. | |||
| 3397 | QualType Canonical; | |||
| 3398 | if (!SpelledAsLValue || InnerRef || !T.isCanonical()) { | |||
| 3399 | QualType PointeeType = (InnerRef ? InnerRef->getPointeeType() : T); | |||
| 3400 | Canonical = getLValueReferenceType(getCanonicalType(PointeeType)); | |||
| 3401 | ||||
| 3402 | // Get the new insert position for the node we care about. | |||
| 3403 | LValueReferenceType *NewIP = | |||
| 3404 | LValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
| 3405 | assert(!NewIP && "Shouldn't be in the map!")(static_cast <bool> (!NewIP && "Shouldn't be in the map!" ) ? void (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\"" , "clang/lib/AST/ASTContext.cpp", 3405, __extension__ __PRETTY_FUNCTION__ )); (void)NewIP; | |||
| 3406 | } | |||
| 3407 | ||||
| 3408 | auto *New = new (*this, TypeAlignment) LValueReferenceType(T, Canonical, | |||
| 3409 | SpelledAsLValue); | |||
| 3410 | Types.push_back(New); | |||
| 3411 | LValueReferenceTypes.InsertNode(New, InsertPos); | |||
| 3412 | ||||
| 3413 | return QualType(New, 0); | |||
| 3414 | } | |||
| 3415 | ||||
| 3416 | /// getRValueReferenceType - Return the uniqued reference to the type for an | |||
| 3417 | /// rvalue reference to the specified type. | |||
| 3418 | QualType ASTContext::getRValueReferenceType(QualType T) const { | |||
| 3419 | assert((!T->isPlaceholderType() ||(static_cast <bool> ((!T->isPlaceholderType() || T-> isSpecificPlaceholderType(BuiltinType::UnknownAny)) && "Unresolved placeholder type") ? void (0) : __assert_fail ("(!T->isPlaceholderType() || T->isSpecificPlaceholderType(BuiltinType::UnknownAny)) && \"Unresolved placeholder type\"" , "clang/lib/AST/ASTContext.cpp", 3421, __extension__ __PRETTY_FUNCTION__ )) | |||
| 3420 | T->isSpecificPlaceholderType(BuiltinType::UnknownAny)) &&(static_cast <bool> ((!T->isPlaceholderType() || T-> isSpecificPlaceholderType(BuiltinType::UnknownAny)) && "Unresolved placeholder type") ? void (0) : __assert_fail ("(!T->isPlaceholderType() || T->isSpecificPlaceholderType(BuiltinType::UnknownAny)) && \"Unresolved placeholder type\"" , "clang/lib/AST/ASTContext.cpp", 3421, __extension__ __PRETTY_FUNCTION__ )) | |||
| 3421 | "Unresolved placeholder type")(static_cast <bool> ((!T->isPlaceholderType() || T-> isSpecificPlaceholderType(BuiltinType::UnknownAny)) && "Unresolved placeholder type") ? void (0) : __assert_fail ("(!T->isPlaceholderType() || T->isSpecificPlaceholderType(BuiltinType::UnknownAny)) && \"Unresolved placeholder type\"" , "clang/lib/AST/ASTContext.cpp", 3421, __extension__ __PRETTY_FUNCTION__ )); | |||
| 3422 | ||||
| 3423 | // Unique pointers, to guarantee there is only one pointer of a particular | |||
| 3424 | // structure. | |||
| 3425 | llvm::FoldingSetNodeID ID; | |||
| 3426 | ReferenceType::Profile(ID, T, false); | |||
| 3427 | ||||
| 3428 | void *InsertPos = nullptr; | |||
| 3429 | if (RValueReferenceType *RT = | |||
| 3430 | RValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
| 3431 | return QualType(RT, 0); | |||
| 3432 | ||||
| 3433 | const auto *InnerRef = T->getAs<ReferenceType>(); | |||
| 3434 | ||||
| 3435 | // If the referencee type isn't canonical, this won't be a canonical type | |||
| 3436 | // either, so fill in the canonical type field. | |||
| 3437 | QualType Canonical; | |||
| 3438 | if (InnerRef || !T.isCanonical()) { | |||
| 3439 | QualType PointeeType = (InnerRef ? InnerRef->getPointeeType() : T); | |||
| 3440 | Canonical = getRValueReferenceType(getCanonicalType(PointeeType)); | |||
| 3441 | ||||
| 3442 | // Get the new insert position for the node we care about. | |||
| 3443 | RValueReferenceType *NewIP = | |||
| 3444 | RValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
| 3445 | assert(!NewIP && "Shouldn't be in the map!")(static_cast <bool> (!NewIP && "Shouldn't be in the map!" ) ? void (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\"" , "clang/lib/AST/ASTContext.cpp", 3445, __extension__ __PRETTY_FUNCTION__ )); (void)NewIP; | |||
| 3446 | } | |||
| 3447 | ||||
| 3448 | auto *New = new (*this, TypeAlignment) RValueReferenceType(T, Canonical); | |||
| 3449 | Types.push_back(New); | |||
| 3450 | RValueReferenceTypes.InsertNode(New, InsertPos); | |||
| 3451 | return QualType(New, 0); | |||
| 3452 | } | |||
| 3453 | ||||
| 3454 | /// getMemberPointerType - Return the uniqued reference to the type for a | |||
| 3455 | /// member pointer to the specified type, in the specified class. | |||
| 3456 | QualType ASTContext::getMemberPointerType(QualType T, const Type *Cls) const { | |||
| 3457 | // Unique pointers, to guarantee there is only one pointer of a particular | |||
| 3458 | // structure. | |||
| 3459 | llvm::FoldingSetNodeID ID; | |||
| 3460 | MemberPointerType::Profile(ID, T, Cls); | |||
| 3461 | ||||
| 3462 | void *InsertPos = nullptr; | |||
| 3463 | if (MemberPointerType *PT = | |||
| 3464 | MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
| 3465 | return QualType(PT, 0); | |||
| 3466 | ||||
| 3467 | // If the pointee or class type isn't canonical, this won't be a canonical | |||
| 3468 | // type either, so fill in the canonical type field. | |||
| 3469 | QualType Canonical; | |||
| 3470 | if (!T.isCanonical() || !Cls->isCanonicalUnqualified()) { | |||
| 3471 | Canonical = getMemberPointerType(getCanonicalType(T),getCanonicalType(Cls)); | |||
| 3472 | ||||
| 3473 | // Get the new insert position for the node we care about. | |||
| 3474 | MemberPointerType *NewIP = | |||
| 3475 | MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
| 3476 | assert(!NewIP && "Shouldn't be in the map!")(static_cast <bool> (!NewIP && "Shouldn't be in the map!" ) ? void (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\"" , "clang/lib/AST/ASTContext.cpp", 3476, __extension__ __PRETTY_FUNCTION__ )); (void)NewIP; | |||
| 3477 | } | |||
| 3478 | auto *New = new (*this, TypeAlignment) MemberPointerType(T, Cls, Canonical); | |||
| 3479 | Types.push_back(New); | |||
| 3480 | MemberPointerTypes.InsertNode(New, InsertPos); | |||
| 3481 | return QualType(New, 0); | |||
| 3482 | } | |||
| 3483 | ||||
| 3484 | /// getConstantArrayType - Return the unique reference to the type for an | |||
| 3485 | /// array of the specified element type. | |||
| 3486 | QualType ASTContext::getConstantArrayType(QualType EltTy, | |||
| 3487 | const llvm::APInt &ArySizeIn, | |||
| 3488 | const Expr *SizeExpr, | |||
| 3489 | ArrayType::ArraySizeModifier ASM, | |||
| 3490 | unsigned IndexTypeQuals) const { | |||
| 3491 | assert((EltTy->isDependentType() ||(static_cast <bool> ((EltTy->isDependentType() || EltTy ->isIncompleteType() || EltTy->isConstantSizeType()) && "Constant array of VLAs is illegal!") ? void (0) : __assert_fail ("(EltTy->isDependentType() || EltTy->isIncompleteType() || EltTy->isConstantSizeType()) && \"Constant array of VLAs is illegal!\"" , "clang/lib/AST/ASTContext.cpp", 3493, __extension__ __PRETTY_FUNCTION__ )) | |||
| 3492 | EltTy->isIncompleteType() || EltTy->isConstantSizeType()) &&(static_cast <bool> ((EltTy->isDependentType() || EltTy ->isIncompleteType() || EltTy->isConstantSizeType()) && "Constant array of VLAs is illegal!") ? void (0) : __assert_fail ("(EltTy->isDependentType() || EltTy->isIncompleteType() || EltTy->isConstantSizeType()) && \"Constant array of VLAs is illegal!\"" , "clang/lib/AST/ASTContext.cpp", 3493, __extension__ __PRETTY_FUNCTION__ )) | |||
| 3493 | "Constant array of VLAs is illegal!")(static_cast <bool> ((EltTy->isDependentType() || EltTy ->isIncompleteType() || EltTy->isConstantSizeType()) && "Constant array of VLAs is illegal!") ? void (0) : __assert_fail ("(EltTy->isDependentType() || EltTy->isIncompleteType() || EltTy->isConstantSizeType()) && \"Constant array of VLAs is illegal!\"" , "clang/lib/AST/ASTContext.cpp", 3493, __extension__ __PRETTY_FUNCTION__ )); | |||
| 3494 | ||||
| 3495 | // We only need the size as part of the type if it's instantiation-dependent. | |||
| 3496 | if (SizeExpr && !SizeExpr->isInstantiationDependent()) | |||
| 3497 | SizeExpr = nullptr; | |||
| 3498 | ||||
| 3499 | // Convert the array size into a canonical width matching the pointer size for | |||
| 3500 | // the target. | |||
| 3501 | llvm::APInt ArySize(ArySizeIn); | |||
| 3502 | ArySize = ArySize.zextOrTrunc(Target->getMaxPointerWidth()); | |||
| 3503 | ||||
| 3504 | llvm::FoldingSetNodeID ID; | |||
| 3505 | ConstantArrayType::Profile(ID, *this, EltTy, ArySize, SizeExpr, ASM, | |||
| 3506 | IndexTypeQuals); | |||
| 3507 | ||||
| 3508 | void *InsertPos = nullptr; | |||
| 3509 | if (ConstantArrayType *ATP = | |||
| 3510 | ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
| 3511 | return QualType(ATP, 0); | |||
| 3512 | ||||
| 3513 | // If the element type isn't canonical or has qualifiers, or the array bound | |||
| 3514 | // is instantiation-dependent, this won't be a canonical type either, so fill | |||
| 3515 | // in the canonical type field. | |||
| 3516 | QualType Canon; | |||
| 3517 | if (!EltTy.isCanonical() || EltTy.hasLocalQualifiers() || SizeExpr) { | |||
| 3518 | SplitQualType canonSplit = getCanonicalType(EltTy).split(); | |||
| 3519 | Canon = getConstantArrayType(QualType(canonSplit.Ty, 0), ArySize, nullptr, | |||
| 3520 | ASM, IndexTypeQuals); | |||
| 3521 | Canon = getQualifiedType(Canon, canonSplit.Quals); | |||
| 3522 | ||||
| 3523 | // Get the new insert position for the node we care about. | |||
| 3524 | ConstantArrayType *NewIP = | |||
| 3525 | ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
| 3526 | assert(!NewIP && "Shouldn't be in the map!")(static_cast <bool> (!NewIP && "Shouldn't be in the map!" ) ? void (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\"" , "clang/lib/AST/ASTContext.cpp", 3526, __extension__ __PRETTY_FUNCTION__ )); (void)NewIP; | |||
| 3527 | } | |||
| 3528 | ||||
| 3529 | void *Mem = Allocate( | |||
| 3530 | ConstantArrayType::totalSizeToAlloc<const Expr *>(SizeExpr ? 1 : 0), | |||
| 3531 | TypeAlignment); | |||
| 3532 | auto *New = new (Mem) | |||
| 3533 | ConstantArrayType(EltTy, Canon, ArySize, SizeExpr, ASM, IndexTypeQuals); | |||
| 3534 | ConstantArrayTypes.InsertNode(New, InsertPos); | |||
| 3535 | Types.push_back(New); | |||
| 3536 | return QualType(New, 0); | |||
| 3537 | } | |||
| 3538 | ||||
| 3539 | /// getVariableArrayDecayedType - Turns the given type, which may be | |||
| 3540 | /// variably-modified, into the corresponding type with all the known | |||
| 3541 | /// sizes replaced with [*]. | |||
| 3542 | QualType ASTContext::getVariableArrayDecayedType(QualType type) const { | |||
| 3543 | // Vastly most common case. | |||
| 3544 | if (!type->isVariablyModifiedType()) return type; | |||
| 3545 | ||||
| 3546 | QualType result; | |||
| 3547 | ||||
| 3548 | SplitQualType split = type.getSplitDesugaredType(); | |||
| 3549 | const Type *ty = split.Ty; | |||
| 3550 | switch (ty->getTypeClass()) { | |||
| 3551 | #define TYPE(Class, Base) | |||
| 3552 | #define ABSTRACT_TYPE(Class, Base) | |||
| 3553 | #define NON_CANONICAL_TYPE(Class, Base) case Type::Class: | |||
| 3554 | #include "clang/AST/TypeNodes.inc" | |||
| 3555 | llvm_unreachable("didn't desugar past all non-canonical types?")::llvm::llvm_unreachable_internal("didn't desugar past all non-canonical types?" , "clang/lib/AST/ASTContext.cpp", 3555); | |||
| 3556 | ||||
| 3557 | // These types should never be variably-modified. | |||
| 3558 | case Type::Builtin: | |||
| 3559 | case Type::Complex: | |||
| 3560 | case Type::Vector: | |||
| 3561 | case Type::DependentVector: | |||
| 3562 | case Type::ExtVector: | |||
| 3563 | case Type::DependentSizedExtVector: | |||
| 3564 | case Type::ConstantMatrix: | |||
| 3565 | case Type::DependentSizedMatrix: | |||
| 3566 | case Type::DependentAddressSpace: | |||
| 3567 | case Type::ObjCObject: | |||
| 3568 | case Type::ObjCInterface: | |||
| 3569 | case Type::ObjCObjectPointer: | |||
| 3570 | case Type::Record: | |||
| 3571 | case Type::Enum: | |||
| 3572 | case Type::UnresolvedUsing: | |||
| 3573 | case Type::TypeOfExpr: | |||
| 3574 | case Type::TypeOf: | |||
| 3575 | case Type::Decltype: | |||
| 3576 | case Type::UnaryTransform: | |||
| 3577 | case Type::DependentName: | |||
| 3578 | case Type::InjectedClassName: | |||
| 3579 | case Type::TemplateSpecialization: | |||
| 3580 | case Type::DependentTemplateSpecialization: | |||
| 3581 | case Type::TemplateTypeParm: | |||
| 3582 | case Type::SubstTemplateTypeParmPack: | |||
| 3583 | case Type::Auto: | |||
| 3584 | case Type::DeducedTemplateSpecialization: | |||
| 3585 | case Type::PackExpansion: | |||
| 3586 | case Type::BitInt: | |||
| 3587 | case Type::DependentBitInt: | |||
| 3588 | llvm_unreachable("type should never be variably-modified")::llvm::llvm_unreachable_internal("type should never be variably-modified" , "clang/lib/AST/ASTContext.cpp", 3588); | |||
| 3589 | ||||
| 3590 | // These types can be variably-modified but should never need to | |||
| 3591 | // further decay. | |||
| 3592 | case Type::FunctionNoProto: | |||
| 3593 | case Type::FunctionProto: | |||
| 3594 | case Type::BlockPointer: | |||
| 3595 | case Type::MemberPointer: | |||
| 3596 | case Type::Pipe: | |||
| 3597 | return type; | |||
| 3598 | ||||
| 3599 | // These types can be variably-modified. All these modifications | |||
| 3600 | // preserve structure except as noted by comments. | |||
| 3601 | // TODO: if we ever care about optimizing VLAs, there are no-op | |||
| 3602 | // optimizations available here. | |||
| 3603 | case Type::Pointer: | |||
| 3604 | result = getPointerType(getVariableArrayDecayedType( | |||
| 3605 | cast<PointerType>(ty)->getPointeeType())); | |||
| 3606 | break; | |||
| 3607 | ||||
| 3608 | case Type::LValueReference: { | |||
| 3609 | const auto *lv = cast<LValueReferenceType>(ty); | |||
| 3610 | result = getLValueReferenceType( | |||
| 3611 | getVariableArrayDecayedType(lv->getPointeeType()), | |||
| 3612 | lv->isSpelledAsLValue()); | |||
| 3613 | break; | |||
| 3614 | } | |||
| 3615 | ||||
| 3616 | case Type::RValueReference: { | |||
| 3617 | const auto *lv = cast<RValueReferenceType>(ty); | |||
| 3618 | result = getRValueReferenceType( | |||
| 3619 | getVariableArrayDecayedType(lv->getPointeeType())); | |||
| 3620 | break; | |||
| 3621 | } | |||
| 3622 | ||||
| 3623 | case Type::Atomic: { | |||
| 3624 | const auto *at = cast<AtomicType>(ty); | |||
| 3625 | result = getAtomicType(getVariableArrayDecayedType(at->getValueType())); | |||
| 3626 | break; | |||
| 3627 | } | |||
| 3628 | ||||
| 3629 | case Type::ConstantArray: { | |||
| 3630 | const auto *cat = cast<ConstantArrayType>(ty); | |||
| 3631 | result = getConstantArrayType( | |||
| 3632 | getVariableArrayDecayedType(cat->getElementType()), | |||
| 3633 | cat->getSize(), | |||
| 3634 | cat->getSizeExpr(), | |||
| 3635 | cat->getSizeModifier(), | |||
| 3636 | cat->getIndexTypeCVRQualifiers()); | |||
| 3637 | break; | |||
| 3638 | } | |||
| 3639 | ||||
| 3640 | case Type::DependentSizedArray: { | |||
| 3641 | const auto *dat = cast<DependentSizedArrayType>(ty); | |||
| 3642 | result = getDependentSizedArrayType( | |||
| 3643 | getVariableArrayDecayedType(dat->getElementType()), | |||
| 3644 | dat->getSizeExpr(), | |||
| 3645 | dat->getSizeModifier(), | |||
| 3646 | dat->getIndexTypeCVRQualifiers(), | |||
| 3647 | dat->getBracketsRange()); | |||
| 3648 | break; | |||
| 3649 | } | |||
| 3650 | ||||
| 3651 | // Turn incomplete types into [*] types. | |||
| 3652 | case Type::IncompleteArray: { | |||
| 3653 | const auto *iat = cast<IncompleteArrayType>(ty); | |||
| 3654 | result = getVariableArrayType( | |||
| 3655 | getVariableArrayDecayedType(iat->getElementType()), | |||
| 3656 | /*size*/ nullptr, | |||
| 3657 | ArrayType::Normal, | |||
| 3658 | iat->getIndexTypeCVRQualifiers(), | |||
| 3659 | SourceRange()); | |||
| 3660 | break; | |||
| 3661 | } | |||
| 3662 | ||||
| 3663 | // Turn VLA types into [*] types. | |||
| 3664 | case Type::VariableArray: { | |||
| 3665 | const auto *vat = cast<VariableArrayType>(ty); | |||
| 3666 | result = getVariableArrayType( | |||
| 3667 | getVariableArrayDecayedType(vat->getElementType()), | |||
| 3668 | /*size*/ nullptr, | |||
| 3669 | ArrayType::Star, | |||
| 3670 | vat->getIndexTypeCVRQualifiers(), | |||
| 3671 | vat->getBracketsRange()); | |||
| 3672 | break; | |||
| 3673 | } | |||
| 3674 | } | |||
| 3675 | ||||
| 3676 | // Apply the top-level qualifiers from the original. | |||
| 3677 | return getQualifiedType(result, split.Quals); | |||
| 3678 | } | |||
| 3679 | ||||
| 3680 | /// getVariableArrayType - Returns a non-unique reference to the type for a | |||
| 3681 | /// variable array of the specified element type. | |||
| 3682 | QualType ASTContext::getVariableArrayType(QualType EltTy, | |||
| 3683 | Expr *NumElts, | |||
| 3684 | ArrayType::ArraySizeModifier ASM, | |||
| 3685 | unsigned IndexTypeQuals, | |||
| 3686 | SourceRange Brackets) const { | |||
| 3687 | // Since we don't unique expressions, it isn't possible to unique VLA's | |||
| 3688 | // that have an expression provided for their size. | |||
| 3689 | QualType Canon; | |||
| 3690 | ||||
| 3691 | // Be sure to pull qualifiers off the element type. | |||
| 3692 | if (!EltTy.isCanonical() || EltTy.hasLocalQualifiers()) { | |||
| 3693 | SplitQualType canonSplit = getCanonicalType(EltTy).split(); | |||
| 3694 | Canon = getVariableArrayType(QualType(canonSplit.Ty, 0), NumElts, ASM, | |||
| 3695 | IndexTypeQuals, Brackets); | |||
| 3696 | Canon = getQualifiedType(Canon, canonSplit.Quals); | |||
| 3697 | } | |||
| 3698 | ||||
| 3699 | auto *New = new (*this, TypeAlignment) | |||
| 3700 | VariableArrayType(EltTy, Canon, NumElts, ASM, IndexTypeQuals, Brackets); | |||
| 3701 | ||||
| 3702 | VariableArrayTypes.push_back(New); | |||
| 3703 | Types.push_back(New); | |||
| 3704 | return QualType(New, 0); | |||
| 3705 | } | |||
| 3706 | ||||
| 3707 | /// getDependentSizedArrayType - Returns a non-unique reference to | |||
| 3708 | /// the type for a dependently-sized array of the specified element | |||
| 3709 | /// type. | |||
| 3710 | QualType ASTContext::getDependentSizedArrayType(QualType elementType, | |||
| 3711 | Expr *numElements, | |||
| 3712 | ArrayType::ArraySizeModifier ASM, | |||
| 3713 | unsigned elementTypeQuals, | |||
| 3714 | SourceRange brackets) const { | |||
| 3715 | assert((!numElements || numElements->isTypeDependent() ||(static_cast <bool> ((!numElements || numElements->isTypeDependent () || numElements->isValueDependent()) && "Size must be type- or value-dependent!" ) ? void (0) : __assert_fail ("(!numElements || numElements->isTypeDependent() || numElements->isValueDependent()) && \"Size must be type- or value-dependent!\"" , "clang/lib/AST/ASTContext.cpp", 3717, __extension__ __PRETTY_FUNCTION__ )) | |||
| 3716 | numElements->isValueDependent()) &&(static_cast <bool> ((!numElements || numElements->isTypeDependent () || numElements->isValueDependent()) && "Size must be type- or value-dependent!" ) ? void (0) : __assert_fail ("(!numElements || numElements->isTypeDependent() || numElements->isValueDependent()) && \"Size must be type- or value-dependent!\"" , "clang/lib/AST/ASTContext.cpp", 3717, __extension__ __PRETTY_FUNCTION__ )) | |||
| 3717 | "Size must be type- or value-dependent!")(static_cast <bool> ((!numElements || numElements->isTypeDependent () || numElements->isValueDependent()) && "Size must be type- or value-dependent!" ) ? void (0) : __assert_fail ("(!numElements || numElements->isTypeDependent() || numElements->isValueDependent()) && \"Size must be type- or value-dependent!\"" , "clang/lib/AST/ASTContext.cpp", 3717, __extension__ __PRETTY_FUNCTION__ )); | |||
| 3718 | ||||
| 3719 | // Dependently-sized array types that do not have a specified number | |||
| 3720 | // of elements will have their sizes deduced from a dependent | |||
| 3721 | // initializer. We do no canonicalization here at all, which is okay | |||
| 3722 | // because they can't be used in most locations. | |||
| 3723 | if (!numElements) { | |||
| 3724 | auto *newType | |||
| 3725 | = new (*this, TypeAlignment) | |||
| 3726 | DependentSizedArrayType(*this, elementType, QualType(), | |||
| 3727 | numElements, ASM, elementTypeQuals, | |||
| 3728 | brackets); | |||
| 3729 | Types.push_back(newType); | |||
| 3730 | return QualType(newType, 0); | |||
| 3731 | } | |||
| 3732 | ||||
| 3733 | // Otherwise, we actually build a new type every time, but we | |||
| 3734 | // also build a canonical type. | |||
| 3735 | ||||
| 3736 | SplitQualType canonElementType = getCanonicalType(elementType).split(); | |||
| 3737 | ||||
| 3738 | void *insertPos = nullptr; | |||
| 3739 | llvm::FoldingSetNodeID ID; | |||
| 3740 | DependentSizedArrayType::Profile(ID, *this, | |||
| 3741 | QualType(canonElementType.Ty, 0), | |||
| 3742 | ASM, elementTypeQuals, numElements); | |||
| 3743 | ||||
| 3744 | // Look for an existing type with these properties. | |||
| 3745 | DependentSizedArrayType *canonTy = | |||
| 3746 | DependentSizedArrayTypes.FindNodeOrInsertPos(ID, insertPos); | |||
| 3747 | ||||
| 3748 | // If we don't have one, build one. | |||
| 3749 | if (!canonTy) { | |||
| 3750 | canonTy = new (*this, TypeAlignment) | |||
| 3751 | DependentSizedArrayType(*this, QualType(canonElementType.Ty, 0), | |||
| 3752 | QualType(), numElements, ASM, elementTypeQuals, | |||
| 3753 | brackets); | |||
| 3754 | DependentSizedArrayTypes.InsertNode(canonTy, insertPos); | |||
| 3755 | Types.push_back(canonTy); | |||
| 3756 | } | |||
| 3757 | ||||
| 3758 | // Apply qualifiers from the element type to the array. | |||
| 3759 | QualType canon = getQualifiedType(QualType(canonTy,0), | |||
| 3760 | canonElementType.Quals); | |||
| 3761 | ||||
| 3762 | // If we didn't need extra canonicalization for the element type or the size | |||
| 3763 | // expression, then just use that as our result. | |||
| 3764 | if (QualType(canonElementType.Ty, 0) == elementType && | |||
| 3765 | canonTy->getSizeExpr() == numElements) | |||
| 3766 | return canon; | |||
| 3767 | ||||
| 3768 | // Otherwise, we need to build a type which follows the spelling | |||
| 3769 | // of the element type. | |||
| 3770 | auto *sugaredType | |||
| 3771 | = new (*this, TypeAlignment) | |||
| 3772 | DependentSizedArrayType(*this, elementType, canon, numElements, | |||
| 3773 | ASM, elementTypeQuals, brackets); | |||
| 3774 | Types.push_back(sugaredType); | |||
| 3775 | return QualType(sugaredType, 0); | |||
| 3776 | } | |||
| 3777 | ||||
| 3778 | QualType ASTContext::getIncompleteArrayType(QualType elementType, | |||
| 3779 | ArrayType::ArraySizeModifier ASM, | |||
| 3780 | unsigned elementTypeQuals) const { | |||
| 3781 | llvm::FoldingSetNodeID ID; | |||
| 3782 | IncompleteArrayType::Profile(ID, elementType, ASM, elementTypeQuals); | |||
| 3783 | ||||
| 3784 | void *insertPos = nullptr; | |||
| 3785 | if (IncompleteArrayType *iat = | |||
| 3786 | IncompleteArrayTypes.FindNodeOrInsertPos(ID, insertPos)) | |||
| 3787 | return QualType(iat, 0); | |||
| 3788 | ||||
| 3789 | // If the element type isn't canonical, this won't be a canonical type | |||
| 3790 | // either, so fill in the canonical type field. We also have to pull | |||
| 3791 | // qualifiers off the element type. | |||
| 3792 | QualType canon; | |||
| 3793 | ||||
| 3794 | if (!elementType.isCanonical() || elementType.hasLocalQualifiers()) { | |||
| 3795 | SplitQualType canonSplit = getCanonicalType(elementType).split(); | |||
| 3796 | canon = getIncompleteArrayType(QualType(canonSplit.Ty, 0), | |||
| 3797 | ASM, elementTypeQuals); | |||
| 3798 | canon = getQualifiedType(canon, canonSplit.Quals); | |||
| 3799 | ||||
| 3800 | // Get the new insert position for the node we care about. | |||
| 3801 | IncompleteArrayType *existing = | |||
| 3802 | IncompleteArrayTypes.FindNodeOrInsertPos(ID, insertPos); | |||
| 3803 | assert(!existing && "Shouldn't be in the map!")(static_cast <bool> (!existing && "Shouldn't be in the map!" ) ? void (0) : __assert_fail ("!existing && \"Shouldn't be in the map!\"" , "clang/lib/AST/ASTContext.cpp", 3803, __extension__ __PRETTY_FUNCTION__ )); (void) existing; | |||
| 3804 | } | |||
| 3805 | ||||
| 3806 | auto *newType = new (*this, TypeAlignment) | |||
| 3807 | IncompleteArrayType(elementType, canon, ASM, elementTypeQuals); | |||
| 3808 | ||||
| 3809 | IncompleteArrayTypes.InsertNode(newType, insertPos); | |||
| 3810 | Types.push_back(newType); | |||
| 3811 | return QualType(newType, 0); | |||
| 3812 | } | |||
| 3813 | ||||
| 3814 | ASTContext::BuiltinVectorTypeInfo | |||
| 3815 | ASTContext::getBuiltinVectorTypeInfo(const BuiltinType *Ty) const { | |||
| 3816 | #define SVE_INT_ELTTY(BITS, ELTS, SIGNED, NUMVECTORS){getIntTypeForBitwidth(BITS, SIGNED), llvm::ElementCount::getScalable (ELTS), NUMVECTORS}; \ | |||
| 3817 | {getIntTypeForBitwidth(BITS, SIGNED), llvm::ElementCount::getScalable(ELTS), \ | |||
| 3818 | NUMVECTORS}; | |||
| 3819 | ||||
| 3820 | #define SVE_ELTTY(ELTTY, ELTS, NUMVECTORS){ELTTY, llvm::ElementCount::getScalable(ELTS), NUMVECTORS}; \ | |||
| 3821 | {ELTTY, llvm::ElementCount::getScalable(ELTS), NUMVECTORS}; | |||
| 3822 | ||||
| 3823 | switch (Ty->getKind()) { | |||
| 3824 | default: | |||
| 3825 | llvm_unreachable("Unsupported builtin vector type")::llvm::llvm_unreachable_internal("Unsupported builtin vector type" , "clang/lib/AST/ASTContext.cpp", 3825); | |||
| 3826 | case BuiltinType::SveInt8: | |||
| 3827 | return SVE_INT_ELTTY(8, 16, true, 1){getIntTypeForBitwidth(8, true), llvm::ElementCount::getScalable (16), 1};; | |||
| 3828 | case BuiltinType::SveUint8: | |||
| 3829 | return SVE_INT_ELTTY(8, 16, false, 1){getIntTypeForBitwidth(8, false), llvm::ElementCount::getScalable (16), 1};; | |||
| 3830 | case BuiltinType::SveInt8x2: | |||
| 3831 | return SVE_INT_ELTTY(8, 16, true, 2){getIntTypeForBitwidth(8, true), llvm::ElementCount::getScalable (16), 2};; | |||
| 3832 | case BuiltinType::SveUint8x2: | |||
| 3833 | return SVE_INT_ELTTY(8, 16, false, 2){getIntTypeForBitwidth(8, false), llvm::ElementCount::getScalable (16), 2};; | |||
| 3834 | case BuiltinType::SveInt8x3: | |||
| 3835 | return SVE_INT_ELTTY(8, 16, true, 3){getIntTypeForBitwidth(8, true), llvm::ElementCount::getScalable (16), 3};; | |||
| 3836 | case BuiltinType::SveUint8x3: | |||
| 3837 | return SVE_INT_ELTTY(8, 16, false, 3){getIntTypeForBitwidth(8, false), llvm::ElementCount::getScalable (16), 3};; | |||
| 3838 | case BuiltinType::SveInt8x4: | |||
| 3839 | return SVE_INT_ELTTY(8, 16, true, 4){getIntTypeForBitwidth(8, true), llvm::ElementCount::getScalable (16), 4};; | |||
| 3840 | case BuiltinType::SveUint8x4: | |||
| 3841 | return SVE_INT_ELTTY(8, 16, false, 4){getIntTypeForBitwidth(8, false), llvm::ElementCount::getScalable (16), 4};; | |||
| 3842 | case BuiltinType::SveInt16: | |||
| 3843 | return SVE_INT_ELTTY(16, 8, true, 1){getIntTypeForBitwidth(16, true), llvm::ElementCount::getScalable (8), 1};; | |||
| 3844 | case BuiltinType::SveUint16: | |||
| 3845 | return SVE_INT_ELTTY(16, 8, false, 1){getIntTypeForBitwidth(16, false), llvm::ElementCount::getScalable (8), 1};; | |||
| 3846 | case BuiltinType::SveInt16x2: | |||
| 3847 | return SVE_INT_ELTTY(16, 8, true, 2){getIntTypeForBitwidth(16, true), llvm::ElementCount::getScalable (8), 2};; | |||
| 3848 | case BuiltinType::SveUint16x2: | |||
| 3849 | return SVE_INT_ELTTY(16, 8, false, 2){getIntTypeForBitwidth(16, false), llvm::ElementCount::getScalable (8), 2};; | |||
| 3850 | case BuiltinType::SveInt16x3: | |||
| 3851 | return SVE_INT_ELTTY(16, 8, true, 3){getIntTypeForBitwidth(16, true), llvm::ElementCount::getScalable (8), 3};; | |||
| 3852 | case BuiltinType::SveUint16x3: | |||
| 3853 | return SVE_INT_ELTTY(16, 8, false, 3){getIntTypeForBitwidth(16, false), llvm::ElementCount::getScalable (8), 3};; | |||
| 3854 | case BuiltinType::SveInt16x4: | |||
| 3855 | return SVE_INT_ELTTY(16, 8, true, 4){getIntTypeForBitwidth(16, true), llvm::ElementCount::getScalable (8), 4};; | |||
| 3856 | case BuiltinType::SveUint16x4: | |||
| 3857 | return SVE_INT_ELTTY(16, 8, false, 4){getIntTypeForBitwidth(16, false), llvm::ElementCount::getScalable (8), 4};; | |||
| 3858 | case BuiltinType::SveInt32: | |||
| 3859 | return SVE_INT_ELTTY(32, 4, true, 1){getIntTypeForBitwidth(32, true), llvm::ElementCount::getScalable (4), 1};; | |||
| 3860 | case BuiltinType::SveUint32: | |||
| 3861 | return SVE_INT_ELTTY(32, 4, false, 1){getIntTypeForBitwidth(32, false), llvm::ElementCount::getScalable (4), 1};; | |||
| 3862 | case BuiltinType::SveInt32x2: | |||
| 3863 | return SVE_INT_ELTTY(32, 4, true, 2){getIntTypeForBitwidth(32, true), llvm::ElementCount::getScalable (4), 2};; | |||
| 3864 | case BuiltinType::SveUint32x2: | |||
| 3865 | return SVE_INT_ELTTY(32, 4, false, 2){getIntTypeForBitwidth(32, false), llvm::ElementCount::getScalable (4), 2};; | |||
| 3866 | case BuiltinType::SveInt32x3: | |||
| 3867 | return SVE_INT_ELTTY(32, 4, true, 3){getIntTypeForBitwidth(32, true), llvm::ElementCount::getScalable (4), 3};; | |||
| 3868 | case BuiltinType::SveUint32x3: | |||
| 3869 | return SVE_INT_ELTTY(32, 4, false, 3){getIntTypeForBitwidth(32, false), llvm::ElementCount::getScalable (4), 3};; | |||
| 3870 | case BuiltinType::SveInt32x4: | |||
| 3871 | return SVE_INT_ELTTY(32, 4, true, 4){getIntTypeForBitwidth(32, true), llvm::ElementCount::getScalable (4), 4};; | |||
| 3872 | case BuiltinType::SveUint32x4: | |||
| 3873 | return SVE_INT_ELTTY(32, 4, false, 4){getIntTypeForBitwidth(32, false), llvm::ElementCount::getScalable (4), 4};; | |||
| 3874 | case BuiltinType::SveInt64: | |||
| 3875 | return SVE_INT_ELTTY(64, 2, true, 1){getIntTypeForBitwidth(64, true), llvm::ElementCount::getScalable (2), 1};; | |||
| 3876 | case BuiltinType::SveUint64: | |||
| 3877 | return SVE_INT_ELTTY(64, 2, false, 1){getIntTypeForBitwidth(64, false), llvm::ElementCount::getScalable (2), 1};; | |||
| 3878 | case BuiltinType::SveInt64x2: | |||
| 3879 | return SVE_INT_ELTTY(64, 2, true, 2){getIntTypeForBitwidth(64, true), llvm::ElementCount::getScalable (2), 2};; | |||
| 3880 | case BuiltinType::SveUint64x2: | |||
| 3881 | return SVE_INT_ELTTY(64, 2, false, 2){getIntTypeForBitwidth(64, false), llvm::ElementCount::getScalable (2), 2};; | |||
| 3882 | case BuiltinType::SveInt64x3: | |||
| 3883 | return SVE_INT_ELTTY(64, 2, true, 3){getIntTypeForBitwidth(64, true), llvm::ElementCount::getScalable (2), 3};; | |||
| 3884 | case BuiltinType::SveUint64x3: | |||
| 3885 | return SVE_INT_ELTTY(64, 2, false, 3){getIntTypeForBitwidth(64, false), llvm::ElementCount::getScalable (2), 3};; | |||
| 3886 | case BuiltinType::SveInt64x4: | |||
| 3887 | return SVE_INT_ELTTY(64, 2, true, 4){getIntTypeForBitwidth(64, true), llvm::ElementCount::getScalable (2), 4};; | |||
| 3888 | case BuiltinType::SveUint64x4: | |||
| 3889 | return SVE_INT_ELTTY(64, 2, false, 4){getIntTypeForBitwidth(64, false), llvm::ElementCount::getScalable (2), 4};; | |||
| 3890 | case BuiltinType::SveBool: | |||
| 3891 | return SVE_ELTTY(BoolTy, 16, 1){BoolTy, llvm::ElementCount::getScalable(16), 1};; | |||
| 3892 | case BuiltinType::SveFloat16: | |||
| 3893 | return SVE_ELTTY(HalfTy, 8, 1){HalfTy, llvm::ElementCount::getScalable(8), 1};; | |||
| 3894 | case BuiltinType::SveFloat16x2: | |||
| 3895 | return SVE_ELTTY(HalfTy, 8, 2){HalfTy, llvm::ElementCount::getScalable(8), 2};; | |||
| 3896 | case BuiltinType::SveFloat16x3: | |||
| 3897 | return SVE_ELTTY(HalfTy, 8, 3){HalfTy, llvm::ElementCount::getScalable(8), 3};; | |||
| 3898 | case BuiltinType::SveFloat16x4: | |||
| 3899 | return SVE_ELTTY(HalfTy, 8, 4){HalfTy, llvm::ElementCount::getScalable(8), 4};; | |||
| 3900 | case BuiltinType::SveFloat32: | |||
| 3901 | return SVE_ELTTY(FloatTy, 4, 1){FloatTy, llvm::ElementCount::getScalable(4), 1};; | |||
| 3902 | case BuiltinType::SveFloat32x2: | |||
| 3903 | return SVE_ELTTY(FloatTy, 4, 2){FloatTy, llvm::ElementCount::getScalable(4), 2};; | |||
| 3904 | case BuiltinType::SveFloat32x3: | |||
| 3905 | return SVE_ELTTY(FloatTy, 4, 3){FloatTy, llvm::ElementCount::getScalable(4), 3};; | |||
| 3906 | case BuiltinType::SveFloat32x4: | |||
| 3907 | return SVE_ELTTY(FloatTy, 4, 4){FloatTy, llvm::ElementCount::getScalable(4), 4};; | |||
| 3908 | case BuiltinType::SveFloat64: | |||
| 3909 | return SVE_ELTTY(DoubleTy, 2, 1){DoubleTy, llvm::ElementCount::getScalable(2), 1};; | |||
| 3910 | case BuiltinType::SveFloat64x2: | |||
| 3911 | return SVE_ELTTY(DoubleTy, 2, 2){DoubleTy, llvm::ElementCount::getScalable(2), 2};; | |||
| 3912 | case BuiltinType::SveFloat64x3: | |||
| 3913 | return SVE_ELTTY(DoubleTy, 2, 3){DoubleTy, llvm::ElementCount::getScalable(2), 3};; | |||
| 3914 | case BuiltinType::SveFloat64x4: | |||
| 3915 | return SVE_ELTTY(DoubleTy, 2, 4){DoubleTy, llvm::ElementCount::getScalable(2), 4};; | |||
| 3916 | case BuiltinType::SveBFloat16: | |||
| 3917 | return SVE_ELTTY(BFloat16Ty, 8, 1){BFloat16Ty, llvm::ElementCount::getScalable(8), 1};; | |||
| 3918 | case BuiltinType::SveBFloat16x2: | |||
| 3919 | return SVE_ELTTY(BFloat16Ty, 8, 2){BFloat16Ty, llvm::ElementCount::getScalable(8), 2};; | |||
| 3920 | case BuiltinType::SveBFloat16x3: | |||
| 3921 | return SVE_ELTTY(BFloat16Ty, 8, 3){BFloat16Ty, llvm::ElementCount::getScalable(8), 3};; | |||
| 3922 | case BuiltinType::SveBFloat16x4: | |||
| 3923 | return SVE_ELTTY(BFloat16Ty, 8, 4){BFloat16Ty, llvm::ElementCount::getScalable(8), 4};; | |||
| 3924 | #define RVV_VECTOR_TYPE_INT(Name, Id, SingletonId, NumEls, ElBits, NF, \ | |||
| 3925 | IsSigned) \ | |||
| 3926 | case BuiltinType::Id: \ | |||
| 3927 | return {getIntTypeForBitwidth(ElBits, IsSigned), \ | |||
| 3928 | llvm::ElementCount::getScalable(NumEls), NF}; | |||
| 3929 | #define RVV_VECTOR_TYPE_FLOAT(Name, Id, SingletonId, NumEls, ElBits, NF) \ | |||
| 3930 | case BuiltinType::Id: \ | |||
| 3931 | return {ElBits == 16 ? Float16Ty : (ElBits == 32 ? FloatTy : DoubleTy), \ | |||
| 3932 | llvm::ElementCount::getScalable(NumEls), NF}; | |||
| 3933 | #define RVV_PREDICATE_TYPE(Name, Id, SingletonId, NumEls) \ | |||
| 3934 | case BuiltinType::Id: \ | |||
| 3935 | return {BoolTy, llvm::ElementCount::getScalable(NumEls), 1}; | |||
| 3936 | #include "clang/Basic/RISCVVTypes.def" | |||
| 3937 | } | |||
| 3938 | } | |||
| 3939 | ||||
| 3940 | /// getScalableVectorType - Return the unique reference to a scalable vector | |||
| 3941 | /// type of the specified element type and size. VectorType must be a built-in | |||
| 3942 | /// type. | |||
| 3943 | QualType ASTContext::getScalableVectorType(QualType EltTy, | |||
| 3944 | unsigned NumElts) const { | |||
| 3945 | if (Target->hasAArch64SVETypes()) { | |||
| 3946 | uint64_t EltTySize = getTypeSize(EltTy); | |||
| 3947 | #define SVE_VECTOR_TYPE(Name, MangledName, Id, SingletonId, NumEls, ElBits, \ | |||
| 3948 | IsSigned, IsFP, IsBF) \ | |||
| 3949 | if (!EltTy->isBooleanType() && \ | |||
| 3950 | ((EltTy->hasIntegerRepresentation() && \ | |||
| 3951 | EltTy->hasSignedIntegerRepresentation() == IsSigned) || \ | |||
| 3952 | (EltTy->hasFloatingRepresentation() && !EltTy->isBFloat16Type() && \ | |||
| 3953 | IsFP && !IsBF) || \ | |||
| 3954 | (EltTy->hasFloatingRepresentation() && EltTy->isBFloat16Type() && \ | |||
| 3955 | IsBF && !IsFP)) && \ | |||
| 3956 | EltTySize == ElBits && NumElts == NumEls) { \ | |||
| 3957 | return SingletonId; \ | |||
| 3958 | } | |||
| 3959 | #define SVE_PREDICATE_TYPE(Name, MangledName, Id, SingletonId, NumEls) \ | |||
| 3960 | if (EltTy->isBooleanType() && NumElts == NumEls) \ | |||
| 3961 | return SingletonId; | |||
| 3962 | #include "clang/Basic/AArch64SVEACLETypes.def" | |||
| 3963 | } else if (Target->hasRISCVVTypes()) { | |||
| 3964 | uint64_t EltTySize = getTypeSize(EltTy); | |||
| 3965 | #define RVV_VECTOR_TYPE(Name, Id, SingletonId, NumEls, ElBits, NF, IsSigned, \ | |||
| 3966 | IsFP) \ | |||
| 3967 | if (!EltTy->isBooleanType() && \ | |||
| 3968 | ((EltTy->hasIntegerRepresentation() && \ | |||
| 3969 | EltTy->hasSignedIntegerRepresentation() == IsSigned) || \ | |||
| 3970 | (EltTy->hasFloatingRepresentation() && IsFP)) && \ | |||
| 3971 | EltTySize == ElBits && NumElts == NumEls) \ | |||
| 3972 | return SingletonId; | |||
| 3973 | #define RVV_PREDICATE_TYPE(Name, Id, SingletonId, NumEls) \ | |||
| 3974 | if (EltTy->isBooleanType() && NumElts == NumEls) \ | |||
| 3975 | return SingletonId; | |||
| 3976 | #include "clang/Basic/RISCVVTypes.def" | |||
| 3977 | } | |||
| 3978 | return QualType(); | |||
| 3979 | } | |||
| 3980 | ||||
| 3981 | /// getVectorType - Return the unique reference to a vector type of | |||
| 3982 | /// the specified element type and size. VectorType must be a built-in type. | |||
| 3983 | QualType ASTContext::getVectorType(QualType vecType, unsigned NumElts, | |||
| 3984 | VectorType::VectorKind VecKind) const { | |||
| 3985 | assert(vecType->isBuiltinType())(static_cast <bool> (vecType->isBuiltinType()) ? void (0) : __assert_fail ("vecType->isBuiltinType()", "clang/lib/AST/ASTContext.cpp" , 3985, __extension__ __PRETTY_FUNCTION__)); | |||
| 3986 | ||||
| 3987 | // Check if we've already instantiated a vector of this type. | |||
| 3988 | llvm::FoldingSetNodeID ID; | |||
| 3989 | VectorType::Profile(ID, vecType, NumElts, Type::Vector, VecKind); | |||
| 3990 | ||||
| 3991 | void *InsertPos = nullptr; | |||
| 3992 | if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
| 3993 | return QualType(VTP, 0); | |||
| 3994 | ||||
| 3995 | // If the element type isn't canonical, this won't be a canonical type either, | |||
| 3996 | // so fill in the canonical type field. | |||
| 3997 | QualType Canonical; | |||
| 3998 | if (!vecType.isCanonical()) { | |||
| 3999 | Canonical = getVectorType(getCanonicalType(vecType), NumElts, VecKind); | |||
| 4000 | ||||
| 4001 | // Get the new insert position for the node we care about. | |||
| 4002 | VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
| 4003 | assert(!NewIP && "Shouldn't be in the map!")(static_cast <bool> (!NewIP && "Shouldn't be in the map!" ) ? void (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\"" , "clang/lib/AST/ASTContext.cpp", 4003, __extension__ __PRETTY_FUNCTION__ )); (void)NewIP; | |||
| 4004 | } | |||
| 4005 | auto *New = new (*this, TypeAlignment) | |||
| 4006 | VectorType(vecType, NumElts, Canonical, VecKind); | |||
| 4007 | VectorTypes.InsertNode(New, InsertPos); | |||
| 4008 | Types.push_back(New); | |||
| 4009 | return QualType(New, 0); | |||
| 4010 | } | |||
| 4011 | ||||
| 4012 | QualType | |||
| 4013 | ASTContext::getDependentVectorType(QualType VecType, Expr *SizeExpr, | |||
| 4014 | SourceLocation AttrLoc, | |||
| 4015 | VectorType::VectorKind VecKind) const { | |||
| 4016 | llvm::FoldingSetNodeID ID; | |||
| 4017 | DependentVectorType::Profile(ID, *this, getCanonicalType(VecType), SizeExpr, | |||
| 4018 | VecKind); | |||
| 4019 | void *InsertPos = nullptr; | |||
| 4020 | DependentVectorType *Canon = | |||
| 4021 | DependentVectorTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
| 4022 | DependentVectorType *New; | |||
| 4023 | ||||
| 4024 | if (Canon) { | |||
| 4025 | New = new (*this, TypeAlignment) DependentVectorType( | |||
| 4026 | *this, VecType, QualType(Canon, 0), SizeExpr, AttrLoc, VecKind); | |||
| 4027 | } else { | |||
| 4028 | QualType CanonVecTy = getCanonicalType(VecType); | |||
| 4029 | if (CanonVecTy == VecType) { | |||
| 4030 | New = new (*this, TypeAlignment) DependentVectorType( | |||
| 4031 | *this, VecType, QualType(), SizeExpr, AttrLoc, VecKind); | |||
| 4032 | ||||
| 4033 | DependentVectorType *CanonCheck = | |||
| 4034 | DependentVectorTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
| 4035 | assert(!CanonCheck &&(static_cast <bool> (!CanonCheck && "Dependent-sized vector_size canonical type broken" ) ? void (0) : __assert_fail ("!CanonCheck && \"Dependent-sized vector_size canonical type broken\"" , "clang/lib/AST/ASTContext.cpp", 4036, __extension__ __PRETTY_FUNCTION__ )) | |||
| 4036 | "Dependent-sized vector_size canonical type broken")(static_cast <bool> (!CanonCheck && "Dependent-sized vector_size canonical type broken" ) ? void (0) : __assert_fail ("!CanonCheck && \"Dependent-sized vector_size canonical type broken\"" , "clang/lib/AST/ASTContext.cpp", 4036, __extension__ __PRETTY_FUNCTION__ )); | |||
| 4037 | (void)CanonCheck; | |||
| 4038 | DependentVectorTypes.InsertNode(New, InsertPos); | |||
| 4039 | } else { | |||
| 4040 | QualType CanonTy = getDependentVectorType(CanonVecTy, SizeExpr, | |||
| 4041 | SourceLocation(), VecKind); | |||
| 4042 | New = new (*this, TypeAlignment) DependentVectorType( | |||
| 4043 | *this, VecType, CanonTy, SizeExpr, AttrLoc, VecKind); | |||
| 4044 | } | |||
| 4045 | } | |||
| 4046 | ||||
| 4047 | Types.push_back(New); | |||
| 4048 | return QualType(New, 0); | |||
| 4049 | } | |||
| 4050 | ||||
| 4051 | /// getExtVectorType - Return the unique reference to an extended vector type of | |||
| 4052 | /// the specified element type and size. VectorType must be a built-in type. | |||
| 4053 | QualType | |||
| 4054 | ASTContext::getExtVectorType(QualType vecType, unsigned NumElts) const { | |||
| 4055 | assert(vecType->isBuiltinType() || vecType->isDependentType())(static_cast <bool> (vecType->isBuiltinType() || vecType ->isDependentType()) ? void (0) : __assert_fail ("vecType->isBuiltinType() || vecType->isDependentType()" , "clang/lib/AST/ASTContext.cpp", 4055, __extension__ __PRETTY_FUNCTION__ )); | |||
| 4056 | ||||
| 4057 | // Check if we've already instantiated a vector of this type. | |||
| 4058 | llvm::FoldingSetNodeID ID; | |||
| 4059 | VectorType::Profile(ID, vecType, NumElts, Type::ExtVector, | |||
| 4060 | VectorType::GenericVector); | |||
| 4061 | void *InsertPos = nullptr; | |||
| 4062 | if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
| 4063 | return QualType(VTP, 0); | |||
| 4064 | ||||
| 4065 | // If the element type isn't canonical, this won't be a canonical type either, | |||
| 4066 | // so fill in the canonical type field. | |||
| 4067 | QualType Canonical; | |||
| 4068 | if (!vecType.isCanonical()) { | |||
| 4069 | Canonical = getExtVectorType(getCanonicalType(vecType), NumElts); | |||
| 4070 | ||||
| 4071 | // Get the new insert position for the node we care about. | |||
| 4072 | VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
| 4073 | assert(!NewIP && "Shouldn't be in the map!")(static_cast <bool> (!NewIP && "Shouldn't be in the map!" ) ? void (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\"" , "clang/lib/AST/ASTContext.cpp", 4073, __extension__ __PRETTY_FUNCTION__ )); (void)NewIP; | |||
| 4074 | } | |||
| 4075 | auto *New = new (*this, TypeAlignment) | |||
| 4076 | ExtVectorType(vecType, NumElts, Canonical); | |||
| 4077 | VectorTypes.InsertNode(New, InsertPos); | |||
| 4078 | Types.push_back(New); | |||
| 4079 | return QualType(New, 0); | |||
| 4080 | } | |||
| 4081 | ||||
| 4082 | QualType | |||
| 4083 | ASTContext::getDependentSizedExtVectorType(QualType vecType, | |||
| 4084 | Expr *SizeExpr, | |||
| 4085 | SourceLocation AttrLoc) const { | |||
| 4086 | llvm::FoldingSetNodeID ID; | |||
| 4087 | DependentSizedExtVectorType::Profile(ID, *this, getCanonicalType(vecType), | |||
| 4088 | SizeExpr); | |||
| 4089 | ||||
| 4090 | void *InsertPos = nullptr; | |||
| 4091 | DependentSizedExtVectorType *Canon | |||
| 4092 | = DependentSizedExtVectorTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
| 4093 | DependentSizedExtVectorType *New; | |||
| 4094 | if (Canon) { | |||
| 4095 | // We already have a canonical version of this array type; use it as | |||
| 4096 | // the canonical type for a newly-built type. | |||
| 4097 | New = new (*this, TypeAlignment) | |||
| 4098 | DependentSizedExtVectorType(*this, vecType, QualType(Canon, 0), | |||
| 4099 | SizeExpr, AttrLoc); | |||
| 4100 | } else { | |||
| 4101 | QualType CanonVecTy = getCanonicalType(vecType); | |||
| 4102 | if (CanonVecTy == vecType) { | |||
| 4103 | New = new (*this, TypeAlignment) | |||
| 4104 | DependentSizedExtVectorType(*this, vecType, QualType(), SizeExpr, | |||
| 4105 | AttrLoc); | |||
| 4106 | ||||
| 4107 | DependentSizedExtVectorType *CanonCheck | |||
| 4108 | = DependentSizedExtVectorTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
| 4109 | assert(!CanonCheck && "Dependent-sized ext_vector canonical type broken")(static_cast <bool> (!CanonCheck && "Dependent-sized ext_vector canonical type broken" ) ? void (0) : __assert_fail ("!CanonCheck && \"Dependent-sized ext_vector canonical type broken\"" , "clang/lib/AST/ASTContext.cpp", 4109, __extension__ __PRETTY_FUNCTION__ )); | |||
| 4110 | (void)CanonCheck; | |||
| 4111 | DependentSizedExtVectorTypes.InsertNode(New, InsertPos); | |||
| 4112 | } else { | |||
| 4113 | QualType CanonExtTy = getDependentSizedExtVectorType(CanonVecTy, SizeExpr, | |||
| 4114 | SourceLocation()); | |||
| 4115 | New = new (*this, TypeAlignment) DependentSizedExtVectorType( | |||
| 4116 | *this, vecType, CanonExtTy, SizeExpr, AttrLoc); | |||
| 4117 | } | |||
| 4118 | } | |||
| 4119 | ||||
| 4120 | Types.push_back(New); | |||
| 4121 | return QualType(New, 0); | |||
| 4122 | } | |||
| 4123 | ||||
| 4124 | QualType ASTContext::getConstantMatrixType(QualType ElementTy, unsigned NumRows, | |||
| 4125 | unsigned NumColumns) const { | |||
| 4126 | llvm::FoldingSetNodeID ID; | |||
| 4127 | ConstantMatrixType::Profile(ID, ElementTy, NumRows, NumColumns, | |||
| 4128 | Type::ConstantMatrix); | |||
| 4129 | ||||
| 4130 | assert(MatrixType::isValidElementType(ElementTy) &&(static_cast <bool> (MatrixType::isValidElementType(ElementTy ) && "need a valid element type") ? void (0) : __assert_fail ("MatrixType::isValidElementType(ElementTy) && \"need a valid element type\"" , "clang/lib/AST/ASTContext.cpp", 4131, __extension__ __PRETTY_FUNCTION__ )) | |||
| 4131 | "need a valid element type")(static_cast <bool> (MatrixType::isValidElementType(ElementTy ) && "need a valid element type") ? void (0) : __assert_fail ("MatrixType::isValidElementType(ElementTy) && \"need a valid element type\"" , "clang/lib/AST/ASTContext.cpp", 4131, __extension__ __PRETTY_FUNCTION__ )); | |||
| 4132 | assert(ConstantMatrixType::isDimensionValid(NumRows) &&(static_cast <bool> (ConstantMatrixType::isDimensionValid (NumRows) && ConstantMatrixType::isDimensionValid(NumColumns ) && "need valid matrix dimensions") ? void (0) : __assert_fail ("ConstantMatrixType::isDimensionValid(NumRows) && ConstantMatrixType::isDimensionValid(NumColumns) && \"need valid matrix dimensions\"" , "clang/lib/AST/ASTContext.cpp", 4134, __extension__ __PRETTY_FUNCTION__ )) | |||
| 4133 | ConstantMatrixType::isDimensionValid(NumColumns) &&(static_cast <bool> (ConstantMatrixType::isDimensionValid (NumRows) && ConstantMatrixType::isDimensionValid(NumColumns ) && "need valid matrix dimensions") ? void (0) : __assert_fail ("ConstantMatrixType::isDimensionValid(NumRows) && ConstantMatrixType::isDimensionValid(NumColumns) && \"need valid matrix dimensions\"" , "clang/lib/AST/ASTContext.cpp", 4134, __extension__ __PRETTY_FUNCTION__ )) | |||
| 4134 | "need valid matrix dimensions")(static_cast <bool> (ConstantMatrixType::isDimensionValid (NumRows) && ConstantMatrixType::isDimensionValid(NumColumns ) && "need valid matrix dimensions") ? void (0) : __assert_fail ("ConstantMatrixType::isDimensionValid(NumRows) && ConstantMatrixType::isDimensionValid(NumColumns) && \"need valid matrix dimensions\"" , "clang/lib/AST/ASTContext.cpp", 4134, __extension__ __PRETTY_FUNCTION__ )); | |||
| 4135 | void *InsertPos = nullptr; | |||
| 4136 | if (ConstantMatrixType *MTP = MatrixTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
| 4137 | return QualType(MTP, 0); | |||
| 4138 | ||||
| 4139 | QualType Canonical; | |||
| 4140 | if (!ElementTy.isCanonical()) { | |||
| 4141 | Canonical = | |||
| 4142 | getConstantMatrixType(getCanonicalType(ElementTy), NumRows, NumColumns); | |||
| 4143 | ||||
| 4144 | ConstantMatrixType *NewIP = MatrixTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
| 4145 | assert(!NewIP && "Matrix type shouldn't already exist in the map")(static_cast <bool> (!NewIP && "Matrix type shouldn't already exist in the map" ) ? void (0) : __assert_fail ("!NewIP && \"Matrix type shouldn't already exist in the map\"" , "clang/lib/AST/ASTContext.cpp", 4145, __extension__ __PRETTY_FUNCTION__ )); | |||
| 4146 | (void)NewIP; | |||
| 4147 | } | |||
| 4148 | ||||
| 4149 | auto *New = new (*this, TypeAlignment) | |||
| 4150 | ConstantMatrixType(ElementTy, NumRows, NumColumns, Canonical); | |||
| 4151 | MatrixTypes.InsertNode(New, InsertPos); | |||
| 4152 | Types.push_back(New); | |||
| 4153 | return QualType(New, 0); | |||
| 4154 | } | |||
| 4155 | ||||
| 4156 | QualType ASTContext::getDependentSizedMatrixType(QualType ElementTy, | |||
| 4157 | Expr *RowExpr, | |||
| 4158 | Expr *ColumnExpr, | |||
| 4159 | SourceLocation AttrLoc) const { | |||
| 4160 | QualType CanonElementTy = getCanonicalType(ElementTy); | |||
| 4161 | llvm::FoldingSetNodeID ID; | |||
| 4162 | DependentSizedMatrixType::Profile(ID, *this, CanonElementTy, RowExpr, | |||
| 4163 | ColumnExpr); | |||
| 4164 | ||||
| 4165 | void *InsertPos = nullptr; | |||
| 4166 | DependentSizedMatrixType *Canon = | |||
| 4167 | DependentSizedMatrixTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
| 4168 | ||||
| 4169 | if (!Canon) { | |||
| 4170 | Canon = new (*this, TypeAlignment) DependentSizedMatrixType( | |||
| 4171 | *this, CanonElementTy, QualType(), RowExpr, ColumnExpr, AttrLoc); | |||
| 4172 | #ifndef NDEBUG | |||
| 4173 | DependentSizedMatrixType *CanonCheck = | |||
| 4174 | DependentSizedMatrixTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
| 4175 | assert(!CanonCheck && "Dependent-sized matrix canonical type broken")(static_cast <bool> (!CanonCheck && "Dependent-sized matrix canonical type broken" ) ? void (0) : __assert_fail ("!CanonCheck && \"Dependent-sized matrix canonical type broken\"" , "clang/lib/AST/ASTContext.cpp", 4175, __extension__ __PRETTY_FUNCTION__ )); | |||
| 4176 | #endif | |||
| 4177 | DependentSizedMatrixTypes.InsertNode(Canon, InsertPos); | |||
| 4178 | Types.push_back(Canon); | |||
| 4179 | } | |||
| 4180 | ||||
| 4181 | // Already have a canonical version of the matrix type | |||
| 4182 | // | |||
| 4183 | // If it exactly matches the requested type, use it directly. | |||
| 4184 | if (Canon->getElementType() == ElementTy && Canon->getRowExpr() == RowExpr && | |||
| 4185 | Canon->getRowExpr() == ColumnExpr) | |||
| 4186 | return QualType(Canon, 0); | |||
| 4187 | ||||
| 4188 | // Use Canon as the canonical type for newly-built type. | |||
| 4189 | DependentSizedMatrixType *New = new (*this, TypeAlignment) | |||
| 4190 | DependentSizedMatrixType(*this, ElementTy, QualType(Canon, 0), RowExpr, | |||
| 4191 | ColumnExpr, AttrLoc); | |||
| 4192 | Types.push_back(New); | |||
| 4193 | return QualType(New, 0); | |||
| 4194 | } | |||
| 4195 | ||||
| 4196 | QualType ASTContext::getDependentAddressSpaceType(QualType PointeeType, | |||
| 4197 | Expr *AddrSpaceExpr, | |||
| 4198 | SourceLocation AttrLoc) const { | |||
| 4199 | assert(AddrSpaceExpr->isInstantiationDependent())(static_cast <bool> (AddrSpaceExpr->isInstantiationDependent ()) ? void (0) : __assert_fail ("AddrSpaceExpr->isInstantiationDependent()" , "clang/lib/AST/ASTContext.cpp", 4199, __extension__ __PRETTY_FUNCTION__ )); | |||
| 4200 | ||||
| 4201 | QualType canonPointeeType = getCanonicalType(PointeeType); | |||
| 4202 | ||||
| 4203 | void *insertPos = nullptr; | |||
| 4204 | llvm::FoldingSetNodeID ID; | |||
| 4205 | DependentAddressSpaceType::Profile(ID, *this, canonPointeeType, | |||
| 4206 | AddrSpaceExpr); | |||
| 4207 | ||||
| 4208 | DependentAddressSpaceType *canonTy = | |||
| 4209 | DependentAddressSpaceTypes.FindNodeOrInsertPos(ID, insertPos); | |||
| 4210 | ||||
| 4211 | if (!canonTy) { | |||
| 4212 | canonTy = new (*this, TypeAlignment) | |||
| 4213 | DependentAddressSpaceType(*this, canonPointeeType, | |||
| 4214 | QualType(), AddrSpaceExpr, AttrLoc); | |||
| 4215 | DependentAddressSpaceTypes.InsertNode(canonTy, insertPos); | |||
| 4216 | Types.push_back(canonTy); | |||
| 4217 | } | |||
| 4218 | ||||
| 4219 | if (canonPointeeType == PointeeType && | |||
| 4220 | canonTy->getAddrSpaceExpr() == AddrSpaceExpr) | |||
| 4221 | return QualType(canonTy, 0); | |||
| 4222 | ||||
| 4223 | auto *sugaredType | |||
| 4224 | = new (*this, TypeAlignment) | |||
| 4225 | DependentAddressSpaceType(*this, PointeeType, QualType(canonTy, 0), | |||
| 4226 | AddrSpaceExpr, AttrLoc); | |||
| 4227 | Types.push_back(sugaredType); | |||
| 4228 | return QualType(sugaredType, 0); | |||
| 4229 | } | |||
| 4230 | ||||
| 4231 | /// Determine whether \p T is canonical as the result type of a function. | |||
| 4232 | static bool isCanonicalResultType(QualType T) { | |||
| 4233 | return T.isCanonical() && | |||
| 4234 | (T.getObjCLifetime() == Qualifiers::OCL_None || | |||
| 4235 | T.getObjCLifetime() == Qualifiers::OCL_ExplicitNone); | |||
| 4236 | } | |||
| 4237 | ||||
| 4238 | /// getFunctionNoProtoType - Return a K&R style C function type like 'int()'. | |||
| 4239 | QualType | |||
| 4240 | ASTContext::getFunctionNoProtoType(QualType ResultTy, | |||
| 4241 | const FunctionType::ExtInfo &Info) const { | |||
| 4242 | // Unique functions, to guarantee there is only one function of a particular | |||
| 4243 | // structure. | |||
| 4244 | llvm::FoldingSetNodeID ID; | |||
| 4245 | FunctionNoProtoType::Profile(ID, ResultTy, Info); | |||
| 4246 | ||||
| 4247 | void *InsertPos = nullptr; | |||
| 4248 | if (FunctionNoProtoType *FT = | |||
| 4249 | FunctionNoProtoTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
| 4250 | return QualType(FT, 0); | |||
| 4251 | ||||
| 4252 | QualType Canonical; | |||
| 4253 | if (!isCanonicalResultType(ResultTy)) { | |||
| 4254 | Canonical = | |||
| 4255 | getFunctionNoProtoType(getCanonicalFunctionResultType(ResultTy), Info); | |||
| 4256 | ||||
| 4257 | // Get the new insert position for the node we care about. | |||
| 4258 | FunctionNoProtoType *NewIP = | |||
| 4259 | FunctionNoProtoTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
| 4260 | assert(!NewIP && "Shouldn't be in the map!")(static_cast <bool> (!NewIP && "Shouldn't be in the map!" ) ? void (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\"" , "clang/lib/AST/ASTContext.cpp", 4260, __extension__ __PRETTY_FUNCTION__ )); (void)NewIP; | |||
| 4261 | } | |||
| 4262 | ||||
| 4263 | auto *New = new (*this, TypeAlignment) | |||
| 4264 | FunctionNoProtoType(ResultTy, Canonical, Info); | |||
| 4265 | Types.push_back(New); | |||
| 4266 | FunctionNoProtoTypes.InsertNode(New, InsertPos); | |||
| 4267 | return QualType(New, 0); | |||
| 4268 | } | |||
| 4269 | ||||
| 4270 | CanQualType | |||
| 4271 | ASTContext::getCanonicalFunctionResultType(QualType ResultType) const { | |||
| 4272 | CanQualType CanResultType = getCanonicalType(ResultType); | |||
| 4273 | ||||
| 4274 | // Canonical result types do not have ARC lifetime qualifiers. | |||
| 4275 | if (CanResultType.getQualifiers().hasObjCLifetime()) { | |||
| 4276 | Qualifiers Qs = CanResultType.getQualifiers(); | |||
| 4277 | Qs.removeObjCLifetime(); | |||
| 4278 | return CanQualType::CreateUnsafe( | |||
| 4279 | getQualifiedType(CanResultType.getUnqualifiedType(), Qs)); | |||
| 4280 | } | |||
| 4281 | ||||
| 4282 | return CanResultType; | |||
| 4283 | } | |||
| 4284 | ||||
| 4285 | static bool isCanonicalExceptionSpecification( | |||
| 4286 | const FunctionProtoType::ExceptionSpecInfo &ESI, bool NoexceptInType) { | |||
| 4287 | if (ESI.Type == EST_None) | |||
| 4288 | return true; | |||
| 4289 | if (!NoexceptInType) | |||
| 4290 | return false; | |||
| 4291 | ||||
| 4292 | // C++17 onwards: exception specification is part of the type, as a simple | |||
| 4293 | // boolean "can this function type throw". | |||
| 4294 | if (ESI.Type == EST_BasicNoexcept) | |||
| 4295 | return true; | |||
| 4296 | ||||
| 4297 | // A noexcept(expr) specification is (possibly) canonical if expr is | |||
| 4298 | // value-dependent. | |||
| 4299 | if (ESI.Type == EST_DependentNoexcept) | |||
| 4300 | return true; | |||
| 4301 | ||||
| 4302 | // A dynamic exception specification is canonical if it only contains pack | |||
| 4303 | // expansions (so we can't tell whether it's non-throwing) and all its | |||
| 4304 | // contained types are canonical. | |||
| 4305 | if (ESI.Type == EST_Dynamic) { | |||
| 4306 | bool AnyPackExpansions = false; | |||
| 4307 | for (QualType ET : ESI.Exceptions) { | |||
| 4308 | if (!ET.isCanonical()) | |||
| 4309 | return false; | |||
| 4310 | if (ET->getAs<PackExpansionType>()) | |||
| 4311 | AnyPackExpansions = true; | |||
| 4312 | } | |||
| 4313 | return AnyPackExpansions; | |||
| 4314 | } | |||
| 4315 | ||||
| 4316 | return false; | |||
| 4317 | } | |||
| 4318 | ||||
| 4319 | QualType ASTContext::getFunctionTypeInternal( | |||
| 4320 | QualType ResultTy, ArrayRef<QualType> ArgArray, | |||
| 4321 | const FunctionProtoType::ExtProtoInfo &EPI, bool OnlyWantCanonical) const { | |||
| 4322 | size_t NumArgs = ArgArray.size(); | |||
| 4323 | ||||
| 4324 | // Unique functions, to guarantee there is only one function of a particular | |||
| 4325 | // structure. | |||
| 4326 | llvm::FoldingSetNodeID ID; | |||
| 4327 | FunctionProtoType::Profile(ID, ResultTy, ArgArray.begin(), NumArgs, EPI, | |||
| 4328 | *this, true); | |||
| 4329 | ||||
| 4330 | QualType Canonical; | |||
| 4331 | bool Unique = false; | |||
| 4332 | ||||
| 4333 | void *InsertPos = nullptr; | |||
| 4334 | if (FunctionProtoType *FPT = | |||
| 4335 | FunctionProtoTypes.FindNodeOrInsertPos(ID, InsertPos)) { | |||
| 4336 | QualType Existing = QualType(FPT, 0); | |||
| 4337 | ||||
| 4338 | // If we find a pre-existing equivalent FunctionProtoType, we can just reuse | |||
| 4339 | // it so long as our exception specification doesn't contain a dependent | |||
| 4340 | // noexcept expression, or we're just looking for a canonical type. | |||
| 4341 | // Otherwise, we're going to need to create a type | |||
| 4342 | // sugar node to hold the concrete expression. | |||
| 4343 | if (OnlyWantCanonical || !isComputedNoexcept(EPI.ExceptionSpec.Type) || | |||
| 4344 | EPI.ExceptionSpec.NoexceptExpr == FPT->getNoexceptExpr()) | |||
| 4345 | return Existing; | |||
| 4346 | ||||
| 4347 | // We need a new type sugar node for this one, to hold the new noexcept | |||
| 4348 | // expression. We do no canonicalization here, but that's OK since we don't | |||
| 4349 | // expect to see the same noexcept expression much more than once. | |||
| 4350 | Canonical = getCanonicalType(Existing); | |||
| 4351 | Unique = true; | |||
| 4352 | } | |||
| 4353 | ||||
| 4354 | bool NoexceptInType = getLangOpts().CPlusPlus17; | |||
| 4355 | bool IsCanonicalExceptionSpec = | |||
| 4356 | isCanonicalExceptionSpecification(EPI.ExceptionSpec, NoexceptInType); | |||
| 4357 | ||||
| 4358 | // Determine whether the type being created is already canonical or not. | |||
| 4359 | bool isCanonical = !Unique && IsCanonicalExceptionSpec && | |||
| 4360 | isCanonicalResultType(ResultTy) && !EPI.HasTrailingReturn; | |||
| 4361 | for (unsigned i = 0; i != NumArgs && isCanonical; ++i) | |||
| 4362 | if (!ArgArray[i].isCanonicalAsParam()) | |||
| 4363 | isCanonical = false; | |||
| 4364 | ||||
| 4365 | if (OnlyWantCanonical) | |||
| 4366 | assert(isCanonical &&(static_cast <bool> (isCanonical && "given non-canonical parameters constructing canonical type" ) ? void (0) : __assert_fail ("isCanonical && \"given non-canonical parameters constructing canonical type\"" , "clang/lib/AST/ASTContext.cpp", 4367, __extension__ __PRETTY_FUNCTION__ )) | |||
| 4367 | "given non-canonical parameters constructing canonical type")(static_cast <bool> (isCanonical && "given non-canonical parameters constructing canonical type" ) ? void (0) : __assert_fail ("isCanonical && \"given non-canonical parameters constructing canonical type\"" , "clang/lib/AST/ASTContext.cpp", 4367, __extension__ __PRETTY_FUNCTION__ )); | |||
| 4368 | ||||
| 4369 | // If this type isn't canonical, get the canonical version of it if we don't | |||
| 4370 | // already have it. The exception spec is only partially part of the | |||
| 4371 | // canonical type, and only in C++17 onwards. | |||
| 4372 | if (!isCanonical && Canonical.isNull()) { | |||
| 4373 | SmallVector<QualType, 16> CanonicalArgs; | |||
| 4374 | CanonicalArgs.reserve(NumArgs); | |||
| 4375 | for (unsigned i = 0; i != NumArgs; ++i) | |||
| 4376 | CanonicalArgs.push_back(getCanonicalParamType(ArgArray[i])); | |||
| 4377 | ||||
| 4378 | llvm::SmallVector<QualType, 8> ExceptionTypeStorage; | |||
| 4379 | FunctionProtoType::ExtProtoInfo CanonicalEPI = EPI; | |||
| 4380 | CanonicalEPI.HasTrailingReturn = false; | |||
| 4381 | ||||
| 4382 | if (IsCanonicalExceptionSpec) { | |||
| 4383 | // Exception spec is already OK. | |||
| 4384 | } else if (NoexceptInType) { | |||
| 4385 | switch (EPI.ExceptionSpec.Type) { | |||
| 4386 | case EST_Unparsed: case EST_Unevaluated: case EST_Uninstantiated: | |||
| 4387 | // We don't know yet. It shouldn't matter what we pick here; no-one | |||
| 4388 | // should ever look at this. | |||
| 4389 | LLVM_FALLTHROUGH[[gnu::fallthrough]]; | |||
| 4390 | case EST_None: case EST_MSAny: case EST_NoexceptFalse: | |||
| 4391 | CanonicalEPI.ExceptionSpec.Type = EST_None; | |||
| 4392 | break; | |||
| 4393 | ||||
| 4394 | // A dynamic exception specification is almost always "not noexcept", | |||
| 4395 | // with the exception that a pack expansion might expand to no types. | |||
| 4396 | case EST_Dynamic: { | |||
| 4397 | bool AnyPacks = false; | |||
| 4398 | for (QualType ET : EPI.ExceptionSpec.Exceptions) { | |||
| 4399 | if (ET->getAs<PackExpansionType>()) | |||
| 4400 | AnyPacks = true; | |||
| 4401 | ExceptionTypeStorage.push_back(getCanonicalType(ET)); | |||
| 4402 | } | |||
| 4403 | if (!AnyPacks) | |||
| 4404 | CanonicalEPI.ExceptionSpec.Type = EST_None; | |||
| 4405 | else { | |||
| 4406 | CanonicalEPI.ExceptionSpec.Type = EST_Dynamic; | |||
| 4407 | CanonicalEPI.ExceptionSpec.Exceptions = ExceptionTypeStorage; | |||
| 4408 | } | |||
| 4409 | break; | |||
| 4410 | } | |||
| 4411 | ||||
| 4412 | case EST_DynamicNone: | |||
| 4413 | case EST_BasicNoexcept: | |||
| 4414 | case EST_NoexceptTrue: | |||
| 4415 | case EST_NoThrow: | |||
| 4416 | CanonicalEPI.ExceptionSpec.Type = EST_BasicNoexcept; | |||
| 4417 | break; | |||
| 4418 | ||||
| 4419 | case EST_DependentNoexcept: | |||
| 4420 | llvm_unreachable("dependent noexcept is already canonical")::llvm::llvm_unreachable_internal("dependent noexcept is already canonical" , "clang/lib/AST/ASTContext.cpp", 4420); | |||
| 4421 | } | |||
| 4422 | } else { | |||
| 4423 | CanonicalEPI.ExceptionSpec = FunctionProtoType::ExceptionSpecInfo(); | |||
| 4424 | } | |||
| 4425 | ||||
| 4426 | // Adjust the canonical function result type. | |||
| 4427 | CanQualType CanResultTy = getCanonicalFunctionResultType(ResultTy); | |||
| 4428 | Canonical = | |||
| 4429 | getFunctionTypeInternal(CanResultTy, CanonicalArgs, CanonicalEPI, true); | |||
| 4430 | ||||
| 4431 | // Get the new insert position for the node we care about. | |||
| 4432 | FunctionProtoType *NewIP = | |||
| 4433 | FunctionProtoTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
| 4434 | assert(!NewIP && "Shouldn't be in the map!")(static_cast <bool> (!NewIP && "Shouldn't be in the map!" ) ? void (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\"" , "clang/lib/AST/ASTContext.cpp", 4434, __extension__ __PRETTY_FUNCTION__ )); (void)NewIP; | |||
| 4435 | } | |||
| 4436 | ||||
| 4437 | // Compute the needed size to hold this FunctionProtoType and the | |||
| 4438 | // various trailing objects. | |||
| 4439 | auto ESH = FunctionProtoType::getExceptionSpecSize( | |||
| 4440 | EPI.ExceptionSpec.Type, EPI.ExceptionSpec.Exceptions.size()); | |||
| 4441 | size_t Size = FunctionProtoType::totalSizeToAlloc< | |||
| 4442 | QualType, SourceLocation, FunctionType::FunctionTypeExtraBitfields, | |||
| 4443 | FunctionType::ExceptionType, Expr *, FunctionDecl *, | |||
| 4444 | FunctionProtoType::ExtParameterInfo, Qualifiers>( | |||
| 4445 | NumArgs, EPI.Variadic, | |||
| 4446 | FunctionProtoType::hasExtraBitfields(EPI.ExceptionSpec.Type), | |||
| 4447 | ESH.NumExceptionType, ESH.NumExprPtr, ESH.NumFunctionDeclPtr, | |||
| 4448 | EPI.ExtParameterInfos ? NumArgs : 0, | |||
| 4449 | EPI.TypeQuals.hasNonFastQualifiers() ? 1 : 0); | |||
| 4450 | ||||
| 4451 | auto *FTP = (FunctionProtoType *)Allocate(Size, TypeAlignment); | |||
| 4452 | FunctionProtoType::ExtProtoInfo newEPI = EPI; | |||
| 4453 | new (FTP) FunctionProtoType(ResultTy, ArgArray, Canonical, newEPI); | |||
| 4454 | Types.push_back(FTP); | |||
| 4455 | if (!Unique) | |||
| 4456 | FunctionProtoTypes.InsertNode(FTP, InsertPos); | |||
| 4457 | return QualType(FTP, 0); | |||
| 4458 | } | |||
| 4459 | ||||
| 4460 | QualType ASTContext::getPipeType(QualType T, bool ReadOnly) const { | |||
| 4461 | llvm::FoldingSetNodeID ID; | |||
| 4462 | PipeType::Profile(ID, T, ReadOnly); | |||
| 4463 | ||||
| 4464 | void *InsertPos = nullptr; | |||
| 4465 | if (PipeType *PT = PipeTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
| 4466 | return QualType(PT, 0); | |||
| 4467 | ||||
| 4468 | // If the pipe element type isn't canonical, this won't be a canonical type | |||
| 4469 | // either, so fill in the canonical type field. | |||
| 4470 | QualType Canonical; | |||
| 4471 | if (!T.isCanonical()) { | |||
| 4472 | Canonical = getPipeType(getCanonicalType(T), ReadOnly); | |||
| 4473 | ||||
| 4474 | // Get the new insert position for the node we care about. | |||
| 4475 | PipeType *NewIP = PipeTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
| 4476 | assert(!NewIP && "Shouldn't be in the map!")(static_cast <bool> (!NewIP && "Shouldn't be in the map!" ) ? void (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\"" , "clang/lib/AST/ASTContext.cpp", 4476, __extension__ __PRETTY_FUNCTION__ )); | |||
| 4477 | (void)NewIP; | |||
| 4478 | } | |||
| 4479 | auto *New = new (*this, TypeAlignment) PipeType(T, Canonical, ReadOnly); | |||
| 4480 | Types.push_back(New); | |||
| 4481 | PipeTypes.InsertNode(New, InsertPos); | |||
| 4482 | return QualType(New, 0); | |||
| 4483 | } | |||
| 4484 | ||||
| 4485 | QualType ASTContext::adjustStringLiteralBaseType(QualType Ty) const { | |||
| 4486 | // OpenCL v1.1 s6.5.3: a string literal is in the constant address space. | |||
| 4487 | return LangOpts.OpenCL ? getAddrSpaceQualType(Ty, LangAS::opencl_constant) | |||
| 4488 | : Ty; | |||
| 4489 | } | |||
| 4490 | ||||
| 4491 | QualType ASTContext::getReadPipeType(QualType T) const { | |||
| 4492 | return getPipeType(T, true); | |||
| 4493 | } | |||
| 4494 | ||||
| 4495 | QualType ASTContext::getWritePipeType(QualType T) const { | |||
| 4496 | return getPipeType(T, false); | |||
| 4497 | } | |||
| 4498 | ||||
| 4499 | QualType ASTContext::getBitIntType(bool IsUnsigned, unsigned NumBits) const { | |||
| 4500 | llvm::FoldingSetNodeID ID; | |||
| 4501 | BitIntType::Profile(ID, IsUnsigned, NumBits); | |||
| 4502 | ||||
| 4503 | void *InsertPos = nullptr; | |||
| 4504 | if (BitIntType *EIT = BitIntTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
| 4505 | return QualType(EIT, 0); | |||
| 4506 | ||||
| 4507 | auto *New = new (*this, TypeAlignment) BitIntType(IsUnsigned, NumBits); | |||
| 4508 | BitIntTypes.InsertNode(New, InsertPos); | |||
| 4509 | Types.push_back(New); | |||
| 4510 | return QualType(New, 0); | |||
| 4511 | } | |||
| 4512 | ||||
| 4513 | QualType ASTContext::getDependentBitIntType(bool IsUnsigned, | |||
| 4514 | Expr *NumBitsExpr) const { | |||
| 4515 | assert(NumBitsExpr->isInstantiationDependent() && "Only good for dependent")(static_cast <bool> (NumBitsExpr->isInstantiationDependent () && "Only good for dependent") ? void (0) : __assert_fail ("NumBitsExpr->isInstantiationDependent() && \"Only good for dependent\"" , "clang/lib/AST/ASTContext.cpp", 4515, __extension__ __PRETTY_FUNCTION__ )); | |||
| 4516 | llvm::FoldingSetNodeID ID; | |||
| 4517 | DependentBitIntType::Profile(ID, *this, IsUnsigned, NumBitsExpr); | |||
| 4518 | ||||
| 4519 | void *InsertPos = nullptr; | |||
| 4520 | if (DependentBitIntType *Existing = | |||
| 4521 | DependentBitIntTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
| 4522 | return QualType(Existing, 0); | |||
| 4523 | ||||
| 4524 | auto *New = new (*this, TypeAlignment) | |||
| 4525 | DependentBitIntType(*this, IsUnsigned, NumBitsExpr); | |||
| 4526 | DependentBitIntTypes.InsertNode(New, InsertPos); | |||
| 4527 | ||||
| 4528 | Types.push_back(New); | |||
| 4529 | return QualType(New, 0); | |||
| 4530 | } | |||
| 4531 | ||||
| 4532 | #ifndef NDEBUG | |||
| 4533 | static bool NeedsInjectedClassNameType(const RecordDecl *D) { | |||
| 4534 | if (!isa<CXXRecordDecl>(D)) return false; | |||
| 4535 | const auto *RD = cast<CXXRecordDecl>(D); | |||
| 4536 | if (isa<ClassTemplatePartialSpecializationDecl>(RD)) | |||
| 4537 | return true; | |||
| 4538 | if (RD->getDescribedClassTemplate() && | |||
| 4539 | !isa<ClassTemplateSpecializationDecl>(RD)) | |||
| 4540 | return true; | |||
| 4541 | return false; | |||
| 4542 | } | |||
| 4543 | #endif | |||
| 4544 | ||||
| 4545 | /// getInjectedClassNameType - Return the unique reference to the | |||
| 4546 | /// injected class name type for the specified templated declaration. | |||
| 4547 | QualType ASTContext::getInjectedClassNameType(CXXRecordDecl *Decl, | |||
| 4548 | QualType TST) const { | |||
| 4549 | assert(NeedsInjectedClassNameType(Decl))(static_cast <bool> (NeedsInjectedClassNameType(Decl)) ? void (0) : __assert_fail ("NeedsInjectedClassNameType(Decl)" , "clang/lib/AST/ASTContext.cpp", 4549, __extension__ __PRETTY_FUNCTION__ )); | |||
| 4550 | if (Decl->TypeForDecl) { | |||
| 4551 | assert(isa<InjectedClassNameType>(Decl->TypeForDecl))(static_cast <bool> (isa<InjectedClassNameType>(Decl ->TypeForDecl)) ? void (0) : __assert_fail ("isa<InjectedClassNameType>(Decl->TypeForDecl)" , "clang/lib/AST/ASTContext.cpp", 4551, __extension__ __PRETTY_FUNCTION__ )); | |||
| 4552 | } else if (CXXRecordDecl *PrevDecl = Decl->getPreviousDecl()) { | |||
| 4553 | assert(PrevDecl->TypeForDecl && "previous declaration has no type")(static_cast <bool> (PrevDecl->TypeForDecl && "previous declaration has no type") ? void (0) : __assert_fail ("PrevDecl->TypeForDecl && \"previous declaration has no type\"" , "clang/lib/AST/ASTContext.cpp", 4553, __extension__ __PRETTY_FUNCTION__ )); | |||
| 4554 | Decl->TypeForDecl = PrevDecl->TypeForDecl; | |||
| 4555 | assert(isa<InjectedClassNameType>(Decl->TypeForDecl))(static_cast <bool> (isa<InjectedClassNameType>(Decl ->TypeForDecl)) ? void (0) : __assert_fail ("isa<InjectedClassNameType>(Decl->TypeForDecl)" , "clang/lib/AST/ASTContext.cpp", 4555, __extension__ __PRETTY_FUNCTION__ )); | |||
| 4556 | } else { | |||
| 4557 | Type *newType = | |||
| 4558 | new (*this, TypeAlignment) InjectedClassNameType(Decl, TST); | |||
| 4559 | Decl->TypeForDecl = newType; | |||
| 4560 | Types.push_back(newType); | |||
| 4561 | } | |||
| 4562 | return QualType(Decl->TypeForDecl, 0); | |||
| 4563 | } | |||
| 4564 | ||||
| 4565 | /// getTypeDeclType - Return the unique reference to the type for the | |||
| 4566 | /// specified type declaration. | |||
| 4567 | QualType ASTContext::getTypeDeclTypeSlow(const TypeDecl *Decl) const { | |||
| 4568 | assert(Decl && "Passed null for Decl param")(static_cast <bool> (Decl && "Passed null for Decl param" ) ? void (0) : __assert_fail ("Decl && \"Passed null for Decl param\"" , "clang/lib/AST/ASTContext.cpp", 4568, __extension__ __PRETTY_FUNCTION__ )); | |||
| 4569 | assert(!Decl->TypeForDecl && "TypeForDecl present in slow case")(static_cast <bool> (!Decl->TypeForDecl && "TypeForDecl present in slow case" ) ? void (0) : __assert_fail ("!Decl->TypeForDecl && \"TypeForDecl present in slow case\"" , "clang/lib/AST/ASTContext.cpp", 4569, __extension__ __PRETTY_FUNCTION__ )); | |||
| 4570 | ||||
| 4571 | if (const auto *Typedef = dyn_cast<TypedefNameDecl>(Decl)) | |||
| 4572 | return getTypedefType(Typedef); | |||
| 4573 | ||||
| 4574 | assert(!isa<TemplateTypeParmDecl>(Decl) &&(static_cast <bool> (!isa<TemplateTypeParmDecl>(Decl ) && "Template type parameter types are always available." ) ? void (0) : __assert_fail ("!isa<TemplateTypeParmDecl>(Decl) && \"Template type parameter types are always available.\"" , "clang/lib/AST/ASTContext.cpp", 4575, __extension__ __PRETTY_FUNCTION__ )) | |||
| 4575 | "Template type parameter types are always available.")(static_cast <bool> (!isa<TemplateTypeParmDecl>(Decl ) && "Template type parameter types are always available." ) ? void (0) : __assert_fail ("!isa<TemplateTypeParmDecl>(Decl) && \"Template type parameter types are always available.\"" , "clang/lib/AST/ASTContext.cpp", 4575, __extension__ __PRETTY_FUNCTION__ )); | |||
| 4576 | ||||
| 4577 | if (const auto *Record = dyn_cast<RecordDecl>(Decl)) { | |||
| 4578 | assert(Record->isFirstDecl() && "struct/union has previous declaration")(static_cast <bool> (Record->isFirstDecl() && "struct/union has previous declaration") ? void (0) : __assert_fail ("Record->isFirstDecl() && \"struct/union has previous declaration\"" , "clang/lib/AST/ASTContext.cpp", 4578, __extension__ __PRETTY_FUNCTION__ )); | |||
| 4579 | assert(!NeedsInjectedClassNameType(Record))(static_cast <bool> (!NeedsInjectedClassNameType(Record )) ? void (0) : __assert_fail ("!NeedsInjectedClassNameType(Record)" , "clang/lib/AST/ASTContext.cpp", 4579, __extension__ __PRETTY_FUNCTION__ )); | |||
| 4580 | return getRecordType(Record); | |||
| 4581 | } else if (const auto *Enum = dyn_cast<EnumDecl>(Decl)) { | |||
| 4582 | assert(Enum->isFirstDecl() && "enum has previous declaration")(static_cast <bool> (Enum->isFirstDecl() && "enum has previous declaration" ) ? void (0) : __assert_fail ("Enum->isFirstDecl() && \"enum has previous declaration\"" , "clang/lib/AST/ASTContext.cpp", 4582, __extension__ __PRETTY_FUNCTION__ )); | |||
| 4583 | return getEnumType(Enum); | |||
| 4584 | } else if (const auto *Using = dyn_cast<UnresolvedUsingTypenameDecl>(Decl)) { | |||
| 4585 | return getUnresolvedUsingType(Using); | |||
| 4586 | } else | |||
| 4587 | llvm_unreachable("TypeDecl without a type?")::llvm::llvm_unreachable_internal("TypeDecl without a type?", "clang/lib/AST/ASTContext.cpp", 4587); | |||
| 4588 | ||||
| 4589 | return QualType(Decl->TypeForDecl, 0); | |||
| 4590 | } | |||
| 4591 | ||||
| 4592 | /// getTypedefType - Return the unique reference to the type for the | |||
| 4593 | /// specified typedef name decl. | |||
| 4594 | QualType ASTContext::getTypedefType(const TypedefNameDecl *Decl, | |||
| 4595 | QualType Underlying) const { | |||
| 4596 | if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); | |||
| 4597 | ||||
| 4598 | if (Underlying.isNull()) | |||
| 4599 | Underlying = Decl->getUnderlyingType(); | |||
| 4600 | QualType Canonical = getCanonicalType(Underlying); | |||
| 4601 | auto *newType = new (*this, TypeAlignment) | |||
| 4602 | TypedefType(Type::Typedef, Decl, Underlying, Canonical); | |||
| 4603 | Decl->TypeForDecl = newType; | |||
| 4604 | Types.push_back(newType); | |||
| 4605 | return QualType(newType, 0); | |||
| 4606 | } | |||
| 4607 | ||||
| 4608 | QualType ASTContext::getUsingType(const UsingShadowDecl *Found, | |||
| 4609 | QualType Underlying) const { | |||
| 4610 | llvm::FoldingSetNodeID ID; | |||
| 4611 | UsingType::Profile(ID, Found); | |||
| 4612 | ||||
| 4613 | void *InsertPos = nullptr; | |||
| 4614 | UsingType *T = UsingTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
| 4615 | if (T) | |||
| 4616 | return QualType(T, 0); | |||
| 4617 | ||||
| 4618 | assert(!Underlying.hasLocalQualifiers())(static_cast <bool> (!Underlying.hasLocalQualifiers()) ? void (0) : __assert_fail ("!Underlying.hasLocalQualifiers()" , "clang/lib/AST/ASTContext.cpp", 4618, __extension__ __PRETTY_FUNCTION__ )); | |||
| 4619 | assert(Underlying == getTypeDeclType(cast<TypeDecl>(Found->getTargetDecl())))(static_cast <bool> (Underlying == getTypeDeclType(cast <TypeDecl>(Found->getTargetDecl()))) ? void (0) : __assert_fail ("Underlying == getTypeDeclType(cast<TypeDecl>(Found->getTargetDecl()))" , "clang/lib/AST/ASTContext.cpp", 4619, __extension__ __PRETTY_FUNCTION__ )); | |||
| 4620 | QualType Canon = Underlying.getCanonicalType(); | |||
| 4621 | ||||
| 4622 | UsingType *NewType = | |||
| 4623 | new (*this, TypeAlignment) UsingType(Found, Underlying, Canon); | |||
| 4624 | Types.push_back(NewType); | |||
| 4625 | UsingTypes.InsertNode(NewType, InsertPos); | |||
| 4626 | return QualType(NewType, 0); | |||
| 4627 | } | |||
| 4628 | ||||
| 4629 | QualType ASTContext::getRecordType(const RecordDecl *Decl) const { | |||
| 4630 | if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); | |||
| 4631 | ||||
| 4632 | if (const RecordDecl *PrevDecl = Decl->getPreviousDecl()) | |||
| 4633 | if (PrevDecl->TypeForDecl) | |||
| 4634 | return QualType(Decl->TypeForDecl = PrevDecl->TypeForDecl, 0); | |||
| 4635 | ||||
| 4636 | auto *newType = new (*this, TypeAlignment) RecordType(Decl); | |||
| 4637 | Decl->TypeForDecl = newType; | |||
| 4638 | Types.push_back(newType); | |||
| 4639 | return QualType(newType, 0); | |||
| 4640 | } | |||
| 4641 | ||||
| 4642 | QualType ASTContext::getEnumType(const EnumDecl *Decl) const { | |||
| 4643 | if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); | |||
| 4644 | ||||
| 4645 | if (const EnumDecl *PrevDecl = Decl->getPreviousDecl()) | |||
| 4646 | if (PrevDecl->TypeForDecl) | |||
| 4647 | return QualType(Decl->TypeForDecl = PrevDecl->TypeForDecl, 0); | |||
| 4648 | ||||
| 4649 | auto *newType = new (*this, TypeAlignment) EnumType(Decl); | |||
| 4650 | Decl->TypeForDecl = newType; | |||
| 4651 | Types.push_back(newType); | |||
| 4652 | return QualType(newType, 0); | |||
| 4653 | } | |||
| 4654 | ||||
| 4655 | QualType ASTContext::getUnresolvedUsingType( | |||
| 4656 | const UnresolvedUsingTypenameDecl *Decl) const { | |||
| 4657 | if (Decl->TypeForDecl) | |||
| 4658 | return QualType(Decl->TypeForDecl, 0); | |||
| 4659 | ||||
| 4660 | if (const UnresolvedUsingTypenameDecl *CanonicalDecl = | |||
| 4661 | Decl->getCanonicalDecl()) | |||
| 4662 | if (CanonicalDecl->TypeForDecl) | |||
| 4663 | return QualType(Decl->TypeForDecl = CanonicalDecl->TypeForDecl, 0); | |||
| 4664 | ||||
| 4665 | Type *newType = new (*this, TypeAlignment) UnresolvedUsingType(Decl); | |||
| 4666 | Decl->TypeForDecl = newType; | |||
| 4667 | Types.push_back(newType); | |||
| 4668 | return QualType(newType, 0); | |||
| 4669 | } | |||
| 4670 | ||||
| 4671 | QualType ASTContext::getAttributedType(attr::Kind attrKind, | |||
| 4672 | QualType modifiedType, | |||
| 4673 | QualType equivalentType) { | |||
| 4674 | llvm::FoldingSetNodeID id; | |||
| 4675 | AttributedType::Profile(id, attrKind, modifiedType, equivalentType); | |||
| 4676 | ||||
| 4677 | void *insertPos = nullptr; | |||
| 4678 | AttributedType *type = AttributedTypes.FindNodeOrInsertPos(id, insertPos); | |||
| 4679 | if (type) return QualType(type, 0); | |||
| 4680 | ||||
| 4681 | QualType canon = getCanonicalType(equivalentType); | |||
| 4682 | type = new (*this, TypeAlignment) | |||
| 4683 | AttributedType(canon, attrKind, modifiedType, equivalentType); | |||
| 4684 | ||||
| 4685 | Types.push_back(type); | |||
| 4686 | AttributedTypes.InsertNode(type, insertPos); | |||
| 4687 | ||||
| 4688 | return QualType(type, 0); | |||
| 4689 | } | |||
| 4690 | ||||
| 4691 | QualType ASTContext::getBTFTagAttributedType(const BTFTypeTagAttr *BTFAttr, | |||
| 4692 | QualType Wrapped) { | |||
| 4693 | llvm::FoldingSetNodeID ID; | |||
| 4694 | BTFTagAttributedType::Profile(ID, Wrapped, BTFAttr); | |||
| 4695 | ||||
| 4696 | void *InsertPos = nullptr; | |||
| 4697 | BTFTagAttributedType *Ty = | |||
| 4698 | BTFTagAttributedTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
| 4699 | if (Ty) | |||
| 4700 | return QualType(Ty, 0); | |||
| 4701 | ||||
| 4702 | QualType Canon = getCanonicalType(Wrapped); | |||
| 4703 | Ty = new (*this, TypeAlignment) BTFTagAttributedType(Canon, Wrapped, BTFAttr); | |||
| 4704 | ||||
| 4705 | Types.push_back(Ty); | |||
| 4706 | BTFTagAttributedTypes.InsertNode(Ty, InsertPos); | |||
| 4707 | ||||
| 4708 | return QualType(Ty, 0); | |||
| 4709 | } | |||
| 4710 | ||||
| 4711 | /// Retrieve a substitution-result type. | |||
| 4712 | QualType | |||
| 4713 | ASTContext::getSubstTemplateTypeParmType(const TemplateTypeParmType *Parm, | |||
| 4714 | QualType Replacement) const { | |||
| 4715 | assert(Replacement.isCanonical()(static_cast <bool> (Replacement.isCanonical() && "replacement types must always be canonical") ? void (0) : __assert_fail ("Replacement.isCanonical() && \"replacement types must always be canonical\"" , "clang/lib/AST/ASTContext.cpp", 4716, __extension__ __PRETTY_FUNCTION__ )) | |||
| 4716 | && "replacement types must always be canonical")(static_cast <bool> (Replacement.isCanonical() && "replacement types must always be canonical") ? void (0) : __assert_fail ("Replacement.isCanonical() && \"replacement types must always be canonical\"" , "clang/lib/AST/ASTContext.cpp", 4716, __extension__ __PRETTY_FUNCTION__ )); | |||
| 4717 | ||||
| 4718 | llvm::FoldingSetNodeID ID; | |||
| 4719 | SubstTemplateTypeParmType::Profile(ID, Parm, Replacement); | |||
| 4720 | void *InsertPos = nullptr; | |||
| 4721 | SubstTemplateTypeParmType *SubstParm | |||
| 4722 | = SubstTemplateTypeParmTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
| 4723 | ||||
| 4724 | if (!SubstParm) { | |||
| 4725 | SubstParm = new (*this, TypeAlignment) | |||
| 4726 | SubstTemplateTypeParmType(Parm, Replacement); | |||
| 4727 | Types.push_back(SubstParm); | |||
| 4728 | SubstTemplateTypeParmTypes.InsertNode(SubstParm, InsertPos); | |||
| 4729 | } | |||
| 4730 | ||||
| 4731 | return QualType(SubstParm, 0); | |||
| 4732 | } | |||
| 4733 | ||||
| 4734 | /// Retrieve a | |||
| 4735 | QualType ASTContext::getSubstTemplateTypeParmPackType( | |||
| 4736 | const TemplateTypeParmType *Parm, | |||
| 4737 | const TemplateArgument &ArgPack) { | |||
| 4738 | #ifndef NDEBUG | |||
| 4739 | for (const auto &P : ArgPack.pack_elements()) { | |||
| 4740 | assert(P.getKind() == TemplateArgument::Type &&"Pack contains a non-type")(static_cast <bool> (P.getKind() == TemplateArgument::Type &&"Pack contains a non-type") ? void (0) : __assert_fail ("P.getKind() == TemplateArgument::Type &&\"Pack contains a non-type\"" , "clang/lib/AST/ASTContext.cpp", 4740, __extension__ __PRETTY_FUNCTION__ )); | |||
| 4741 | assert(P.getAsType().isCanonical() && "Pack contains non-canonical type")(static_cast <bool> (P.getAsType().isCanonical() && "Pack contains non-canonical type") ? void (0) : __assert_fail ("P.getAsType().isCanonical() && \"Pack contains non-canonical type\"" , "clang/lib/AST/ASTContext.cpp", 4741, __extension__ __PRETTY_FUNCTION__ )); | |||
| 4742 | } | |||
| 4743 | #endif | |||
| 4744 | ||||
| 4745 | llvm::FoldingSetNodeID ID; | |||
| 4746 | SubstTemplateTypeParmPackType::Profile(ID, Parm, ArgPack); | |||
| 4747 | void *InsertPos = nullptr; | |||
| 4748 | if (SubstTemplateTypeParmPackType *SubstParm | |||
| 4749 | = SubstTemplateTypeParmPackTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
| 4750 | return QualType(SubstParm, 0); | |||
| 4751 | ||||
| 4752 | QualType Canon; | |||
| 4753 | if (!Parm->isCanonicalUnqualified()) { | |||
| 4754 | Canon = getCanonicalType(QualType(Parm, 0)); | |||
| 4755 | Canon = getSubstTemplateTypeParmPackType(cast<TemplateTypeParmType>(Canon), | |||
| 4756 | ArgPack); | |||
| 4757 | SubstTemplateTypeParmPackTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
| 4758 | } | |||
| 4759 | ||||
| 4760 | auto *SubstParm | |||
| 4761 | = new (*this, TypeAlignment) SubstTemplateTypeParmPackType(Parm, Canon, | |||
| 4762 | ArgPack); | |||
| 4763 | Types.push_back(SubstParm); | |||
| 4764 | SubstTemplateTypeParmPackTypes.InsertNode(SubstParm, InsertPos); | |||
| 4765 | return QualType(SubstParm, 0); | |||
| 4766 | } | |||
| 4767 | ||||
| 4768 | /// Retrieve the template type parameter type for a template | |||
| 4769 | /// parameter or parameter pack with the given depth, index, and (optionally) | |||
| 4770 | /// name. | |||
| 4771 | QualType ASTContext::getTemplateTypeParmType(unsigned Depth, unsigned Index, | |||
| 4772 | bool ParameterPack, | |||
| 4773 | TemplateTypeParmDecl *TTPDecl) const { | |||
| 4774 | llvm::FoldingSetNodeID ID; | |||
| 4775 | TemplateTypeParmType::Profile(ID, Depth, Index, ParameterPack, TTPDecl); | |||
| 4776 | void *InsertPos = nullptr; | |||
| 4777 | TemplateTypeParmType *TypeParm | |||
| 4778 | = TemplateTypeParmTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
| 4779 | ||||
| 4780 | if (TypeParm) | |||
| 4781 | return QualType(TypeParm, 0); | |||
| 4782 | ||||
| 4783 | if (TTPDecl) { | |||
| 4784 | QualType Canon = getTemplateTypeParmType(Depth, Index, ParameterPack); | |||
| 4785 | TypeParm = new (*this, TypeAlignment) TemplateTypeParmType(TTPDecl, Canon); | |||
| 4786 | ||||
| 4787 | TemplateTypeParmType *TypeCheck | |||
| 4788 | = TemplateTypeParmTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
| 4789 | assert(!TypeCheck && "Template type parameter canonical type broken")(static_cast <bool> (!TypeCheck && "Template type parameter canonical type broken" ) ? void (0) : __assert_fail ("!TypeCheck && \"Template type parameter canonical type broken\"" , "clang/lib/AST/ASTContext.cpp", 4789, __extension__ __PRETTY_FUNCTION__ )); | |||
| 4790 | (void)TypeCheck; | |||
| 4791 | } else | |||
| 4792 | TypeParm = new (*this, TypeAlignment) | |||
| 4793 | TemplateTypeParmType(Depth, Index, ParameterPack); | |||
| 4794 | ||||
| 4795 | Types.push_back(TypeParm); | |||
| 4796 | TemplateTypeParmTypes.InsertNode(TypeParm, InsertPos); | |||
| 4797 | ||||
| 4798 | return QualType(TypeParm, 0); | |||
| 4799 | } | |||
| 4800 | ||||
| 4801 | TypeSourceInfo * | |||
| 4802 | ASTContext::getTemplateSpecializationTypeInfo(TemplateName Name, | |||
| 4803 | SourceLocation NameLoc, | |||
| 4804 | const TemplateArgumentListInfo &Args, | |||
| 4805 | QualType Underlying) const { | |||
| 4806 | assert(!Name.getAsDependentTemplateName() &&(static_cast <bool> (!Name.getAsDependentTemplateName() && "No dependent template names here!") ? void (0) : __assert_fail ("!Name.getAsDependentTemplateName() && \"No dependent template names here!\"" , "clang/lib/AST/ASTContext.cpp", 4807, __extension__ __PRETTY_FUNCTION__ )) | |||
| 4807 | "No dependent template names here!")(static_cast <bool> (!Name.getAsDependentTemplateName() && "No dependent template names here!") ? void (0) : __assert_fail ("!Name.getAsDependentTemplateName() && \"No dependent template names here!\"" , "clang/lib/AST/ASTContext.cpp", 4807, __extension__ __PRETTY_FUNCTION__ )); | |||
| 4808 | QualType TST = getTemplateSpecializationType(Name, Args, Underlying); | |||
| 4809 | ||||
| 4810 | TypeSourceInfo *DI = CreateTypeSourceInfo(TST); | |||
| 4811 | TemplateSpecializationTypeLoc TL = | |||
| 4812 | DI->getTypeLoc().castAs<TemplateSpecializationTypeLoc>(); | |||
| 4813 | TL.setTemplateKeywordLoc(SourceLocation()); | |||
| 4814 | TL.setTemplateNameLoc(NameLoc); | |||
| 4815 | TL.setLAngleLoc(Args.getLAngleLoc()); | |||
| 4816 | TL.setRAngleLoc(Args.getRAngleLoc()); | |||
| 4817 | for (unsigned i = 0, e = TL.getNumArgs(); i != e; ++i) | |||
| 4818 | TL.setArgLocInfo(i, Args[i].getLocInfo()); | |||
| 4819 | return DI; | |||
| 4820 | } | |||
| 4821 | ||||
| 4822 | QualType | |||
| 4823 | ASTContext::getTemplateSpecializationType(TemplateName Template, | |||
| 4824 | const TemplateArgumentListInfo &Args, | |||
| 4825 | QualType Underlying) const { | |||
| 4826 | assert(!Template.getAsDependentTemplateName() &&(static_cast <bool> (!Template.getAsDependentTemplateName () && "No dependent template names here!") ? void (0) : __assert_fail ("!Template.getAsDependentTemplateName() && \"No dependent template names here!\"" , "clang/lib/AST/ASTContext.cpp", 4827, __extension__ __PRETTY_FUNCTION__ )) | |||
| 4827 | "No dependent template names here!")(static_cast <bool> (!Template.getAsDependentTemplateName () && "No dependent template names here!") ? void (0) : __assert_fail ("!Template.getAsDependentTemplateName() && \"No dependent template names here!\"" , "clang/lib/AST/ASTContext.cpp", 4827, __extension__ __PRETTY_FUNCTION__ )); | |||
| 4828 | ||||
| 4829 | SmallVector<TemplateArgument, 4> ArgVec; | |||
| 4830 | ArgVec.reserve(Args.size()); | |||
| 4831 | for (const TemplateArgumentLoc &Arg : Args.arguments()) | |||
| 4832 | ArgVec.push_back(Arg.getArgument()); | |||
| 4833 | ||||
| 4834 | return getTemplateSpecializationType(Template, ArgVec, Underlying); | |||
| 4835 | } | |||
| 4836 | ||||
| 4837 | #ifndef NDEBUG | |||
| 4838 | static bool hasAnyPackExpansions(ArrayRef<TemplateArgument> Args) { | |||
| 4839 | for (const TemplateArgument &Arg : Args) | |||
| 4840 | if (Arg.isPackExpansion()) | |||
| 4841 | return true; | |||
| 4842 | ||||
| 4843 | return true; | |||
| 4844 | } | |||
| 4845 | #endif | |||
| 4846 | ||||
| 4847 | QualType | |||
| 4848 | ASTContext::getTemplateSpecializationType(TemplateName Template, | |||
| 4849 | ArrayRef<TemplateArgument> Args, | |||
| 4850 | QualType Underlying) const { | |||
| 4851 | assert(!Template.getAsDependentTemplateName() &&(static_cast <bool> (!Template.getAsDependentTemplateName () && "No dependent template names here!") ? void (0) : __assert_fail ("!Template.getAsDependentTemplateName() && \"No dependent template names here!\"" , "clang/lib/AST/ASTContext.cpp", 4852, __extension__ __PRETTY_FUNCTION__ )) | |||
| 4852 | "No dependent template names here!")(static_cast <bool> (!Template.getAsDependentTemplateName () && "No dependent template names here!") ? void (0) : __assert_fail ("!Template.getAsDependentTemplateName() && \"No dependent template names here!\"" , "clang/lib/AST/ASTContext.cpp", 4852, __extension__ __PRETTY_FUNCTION__ )); | |||
| 4853 | // Look through qualified template names. | |||
| 4854 | if (QualifiedTemplateName *QTN = Template.getAsQualifiedTemplateName()) | |||
| 4855 | Template = TemplateName(QTN->getTemplateDecl()); | |||
| 4856 | ||||
| 4857 | bool IsTypeAlias = | |||
| 4858 | Template.getAsTemplateDecl() && | |||
| 4859 | isa<TypeAliasTemplateDecl>(Template.getAsTemplateDecl()); | |||
| 4860 | QualType CanonType; | |||
| 4861 | if (!Underlying.isNull()) | |||
| 4862 | CanonType = getCanonicalType(Underlying); | |||
| 4863 | else { | |||
| 4864 | // We can get here with an alias template when the specialization contains | |||
| 4865 | // a pack expansion that does not match up with a parameter pack. | |||
| 4866 | assert((!IsTypeAlias || hasAnyPackExpansions(Args)) &&(static_cast <bool> ((!IsTypeAlias || hasAnyPackExpansions (Args)) && "Caller must compute aliased type") ? void (0) : __assert_fail ("(!IsTypeAlias || hasAnyPackExpansions(Args)) && \"Caller must compute aliased type\"" , "clang/lib/AST/ASTContext.cpp", 4867, __extension__ __PRETTY_FUNCTION__ )) | |||
| 4867 | "Caller must compute aliased type")(static_cast <bool> ((!IsTypeAlias || hasAnyPackExpansions (Args)) && "Caller must compute aliased type") ? void (0) : __assert_fail ("(!IsTypeAlias || hasAnyPackExpansions(Args)) && \"Caller must compute aliased type\"" , "clang/lib/AST/ASTContext.cpp", 4867, __extension__ __PRETTY_FUNCTION__ )); | |||
| 4868 | IsTypeAlias = false; | |||
| 4869 | CanonType = getCanonicalTemplateSpecializationType(Template, Args); | |||
| 4870 | } | |||
| 4871 | ||||
| 4872 | // Allocate the (non-canonical) template specialization type, but don't | |||
| 4873 | // try to unique it: these types typically have location information that | |||
| 4874 | // we don't unique and don't want to lose. | |||
| 4875 | void *Mem = Allocate(sizeof(TemplateSpecializationType) + | |||
| 4876 | sizeof(TemplateArgument) * Args.size() + | |||
| 4877 | (IsTypeAlias? sizeof(QualType) : 0), | |||
| 4878 | TypeAlignment); | |||
| 4879 | auto *Spec | |||
| 4880 | = new (Mem) TemplateSpecializationType(Template, Args, CanonType, | |||
| 4881 | IsTypeAlias ? Underlying : QualType()); | |||
| 4882 | ||||
| 4883 | Types.push_back(Spec); | |||
| 4884 | return QualType(Spec, 0); | |||
| 4885 | } | |||
| 4886 | ||||
| 4887 | static bool | |||
| 4888 | getCanonicalTemplateArguments(const ASTContext &C, | |||
| 4889 | ArrayRef<TemplateArgument> OrigArgs, | |||
| 4890 | SmallVectorImpl<TemplateArgument> &CanonArgs) { | |||
| 4891 | bool AnyNonCanonArgs = false; | |||
| 4892 | unsigned NumArgs = OrigArgs.size(); | |||
| 4893 | CanonArgs.resize(NumArgs); | |||
| 4894 | for (unsigned I = 0; I != NumArgs; ++I) { | |||
| 4895 | const TemplateArgument &OrigArg = OrigArgs[I]; | |||
| 4896 | TemplateArgument &CanonArg = CanonArgs[I]; | |||
| 4897 | CanonArg = C.getCanonicalTemplateArgument(OrigArg); | |||
| 4898 | if (!CanonArg.structurallyEquals(OrigArg)) | |||
| 4899 | AnyNonCanonArgs = true; | |||
| 4900 | } | |||
| 4901 | return AnyNonCanonArgs; | |||
| 4902 | } | |||
| 4903 | ||||
| 4904 | QualType ASTContext::getCanonicalTemplateSpecializationType( | |||
| 4905 | TemplateName Template, ArrayRef<TemplateArgument> Args) const { | |||
| 4906 | assert(!Template.getAsDependentTemplateName() &&(static_cast <bool> (!Template.getAsDependentTemplateName () && "No dependent template names here!") ? void (0) : __assert_fail ("!Template.getAsDependentTemplateName() && \"No dependent template names here!\"" , "clang/lib/AST/ASTContext.cpp", 4907, __extension__ __PRETTY_FUNCTION__ )) | |||
| 4907 | "No dependent template names here!")(static_cast <bool> (!Template.getAsDependentTemplateName () && "No dependent template names here!") ? void (0) : __assert_fail ("!Template.getAsDependentTemplateName() && \"No dependent template names here!\"" , "clang/lib/AST/ASTContext.cpp", 4907, __extension__ __PRETTY_FUNCTION__ )); | |||
| 4908 | ||||
| 4909 | // Look through qualified template names. | |||
| 4910 | if (QualifiedTemplateName *QTN = Template.getAsQualifiedTemplateName()) | |||
| 4911 | Template = TemplateName(QTN->getTemplateDecl()); | |||
| 4912 | ||||
| 4913 | // Build the canonical template specialization type. | |||
| 4914 | TemplateName CanonTemplate = getCanonicalTemplateName(Template); | |||
| 4915 | SmallVector<TemplateArgument, 4> CanonArgs; | |||
| 4916 | ::getCanonicalTemplateArguments(*this, Args, CanonArgs); | |||
| 4917 | ||||
| 4918 | // Determine whether this canonical template specialization type already | |||
| 4919 | // exists. | |||
| 4920 | llvm::FoldingSetNodeID ID; | |||
| 4921 | TemplateSpecializationType::Profile(ID, CanonTemplate, | |||
| 4922 | CanonArgs, *this); | |||
| 4923 | ||||
| 4924 | void *InsertPos = nullptr; | |||
| 4925 | TemplateSpecializationType *Spec | |||
| 4926 | = TemplateSpecializationTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
| 4927 | ||||
| 4928 | if (!Spec) { | |||
| 4929 | // Allocate a new canonical template specialization type. | |||
| 4930 | void *Mem = Allocate((sizeof(TemplateSpecializationType) + | |||
| 4931 | sizeof(TemplateArgument) * CanonArgs.size()), | |||
| 4932 | TypeAlignment); | |||
| 4933 | Spec = new (Mem) TemplateSpecializationType(CanonTemplate, | |||
| 4934 | CanonArgs, | |||
| 4935 | QualType(), QualType()); | |||
| 4936 | Types.push_back(Spec); | |||
| 4937 | TemplateSpecializationTypes.InsertNode(Spec, InsertPos); | |||
| 4938 | } | |||
| 4939 | ||||
| 4940 | assert(Spec->isDependentType() &&(static_cast <bool> (Spec->isDependentType() && "Non-dependent template-id type must have a canonical type") ? void (0) : __assert_fail ("Spec->isDependentType() && \"Non-dependent template-id type must have a canonical type\"" , "clang/lib/AST/ASTContext.cpp", 4941, __extension__ __PRETTY_FUNCTION__ )) | |||
| 4941 | "Non-dependent template-id type must have a canonical type")(static_cast <bool> (Spec->isDependentType() && "Non-dependent template-id type must have a canonical type") ? void (0) : __assert_fail ("Spec->isDependentType() && \"Non-dependent template-id type must have a canonical type\"" , "clang/lib/AST/ASTContext.cpp", 4941, __extension__ __PRETTY_FUNCTION__ )); | |||
| 4942 | return QualType(Spec, 0); | |||
| 4943 | } | |||
| 4944 | ||||
| 4945 | QualType ASTContext::getElaboratedType(ElaboratedTypeKeyword Keyword, | |||
| 4946 | NestedNameSpecifier *NNS, | |||
| 4947 | QualType NamedType, | |||
| 4948 | TagDecl *OwnedTagDecl) const { | |||
| 4949 | llvm::FoldingSetNodeID ID; | |||
| 4950 | ElaboratedType::Profile(ID, Keyword, NNS, NamedType, OwnedTagDecl); | |||
| 4951 | ||||
| 4952 | void *InsertPos = nullptr; | |||
| 4953 | ElaboratedType *T = ElaboratedTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
| 4954 | if (T) | |||
| 4955 | return QualType(T, 0); | |||
| 4956 | ||||
| 4957 | QualType Canon = NamedType; | |||
| 4958 | if (!Canon.isCanonical()) { | |||
| 4959 | Canon = getCanonicalType(NamedType); | |||
| 4960 | ElaboratedType *CheckT = ElaboratedTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
| 4961 | assert(!CheckT && "Elaborated canonical type broken")(static_cast <bool> (!CheckT && "Elaborated canonical type broken" ) ? void (0) : __assert_fail ("!CheckT && \"Elaborated canonical type broken\"" , "clang/lib/AST/ASTContext.cpp", 4961, __extension__ __PRETTY_FUNCTION__ )); | |||
| 4962 | (void)CheckT; | |||
| 4963 | } | |||
| 4964 | ||||
| 4965 | void *Mem = Allocate(ElaboratedType::totalSizeToAlloc<TagDecl *>(!!OwnedTagDecl), | |||
| 4966 | TypeAlignment); | |||
| 4967 | T = new (Mem) ElaboratedType(Keyword, NNS, NamedType, Canon, OwnedTagDecl); | |||
| 4968 | ||||
| 4969 | Types.push_back(T); | |||
| 4970 | ElaboratedTypes.InsertNode(T, InsertPos); | |||
| 4971 | return QualType(T, 0); | |||
| 4972 | } | |||
| 4973 | ||||
| 4974 | QualType | |||
| 4975 | ASTContext::getParenType(QualType InnerType) const { | |||
| 4976 | llvm::FoldingSetNodeID ID; | |||
| 4977 | ParenType::Profile(ID, InnerType); | |||
| 4978 | ||||
| 4979 | void *InsertPos = nullptr; | |||
| 4980 | ParenType *T = ParenTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
| 4981 | if (T) | |||
| 4982 | return QualType(T, 0); | |||
| 4983 | ||||
| 4984 | QualType Canon = InnerType; | |||
| 4985 | if (!Canon.isCanonical()) { | |||
| 4986 | Canon = getCanonicalType(InnerType); | |||
| 4987 | ParenType *CheckT = ParenTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
| 4988 | assert(!CheckT && "Paren canonical type broken")(static_cast <bool> (!CheckT && "Paren canonical type broken" ) ? void (0) : __assert_fail ("!CheckT && \"Paren canonical type broken\"" , "clang/lib/AST/ASTContext.cpp", 4988, __extension__ __PRETTY_FUNCTION__ )); | |||
| 4989 | (void)CheckT; | |||
| 4990 | } | |||
| 4991 | ||||
| 4992 | T = new (*this, TypeAlignment) ParenType(InnerType, Canon); | |||
| 4993 | Types.push_back(T); | |||
| 4994 | ParenTypes.InsertNode(T, InsertPos); | |||
| 4995 | return QualType(T, 0); | |||
| 4996 | } | |||
| 4997 | ||||
| 4998 | QualType | |||
| 4999 | ASTContext::getMacroQualifiedType(QualType UnderlyingTy, | |||
| 5000 | const IdentifierInfo *MacroII) const { | |||
| 5001 | QualType Canon = UnderlyingTy; | |||
| 5002 | if (!Canon.isCanonical()) | |||
| 5003 | Canon = getCanonicalType(UnderlyingTy); | |||
| 5004 | ||||
| 5005 | auto *newType = new (*this, TypeAlignment) | |||
| 5006 | MacroQualifiedType(UnderlyingTy, Canon, MacroII); | |||
| 5007 | Types.push_back(newType); | |||
| 5008 | return QualType(newType, 0); | |||
| 5009 | } | |||
| 5010 | ||||
| 5011 | QualType ASTContext::getDependentNameType(ElaboratedTypeKeyword Keyword, | |||
| 5012 | NestedNameSpecifier *NNS, | |||
| 5013 | const IdentifierInfo *Name, | |||
| 5014 | QualType Canon) const { | |||
| 5015 | if (Canon.isNull()) { | |||
| 5016 | NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); | |||
| 5017 | if (CanonNNS != NNS) | |||
| 5018 | Canon = getDependentNameType(Keyword, CanonNNS, Name); | |||
| 5019 | } | |||
| 5020 | ||||
| 5021 | llvm::FoldingSetNodeID ID; | |||
| 5022 | DependentNameType::Profile(ID, Keyword, NNS, Name); | |||
| 5023 | ||||
| 5024 | void *InsertPos = nullptr; | |||
| 5025 | DependentNameType *T | |||
| 5026 | = DependentNameTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
| 5027 | if (T) | |||
| 5028 | return QualType(T, 0); | |||
| 5029 | ||||
| 5030 | T = new (*this, TypeAlignment) DependentNameType(Keyword, NNS, Name, Canon); | |||
| 5031 | Types.push_back(T); | |||
| 5032 | DependentNameTypes.InsertNode(T, InsertPos); | |||
| 5033 | return QualType(T, 0); | |||
| 5034 | } | |||
| 5035 | ||||
| 5036 | QualType | |||
| 5037 | ASTContext::getDependentTemplateSpecializationType( | |||
| 5038 | ElaboratedTypeKeyword Keyword, | |||
| 5039 | NestedNameSpecifier *NNS, | |||
| 5040 | const IdentifierInfo *Name, | |||
| 5041 | const TemplateArgumentListInfo &Args) const { | |||
| 5042 | // TODO: avoid this copy | |||
| 5043 | SmallVector<TemplateArgument, 16> ArgCopy; | |||
| 5044 | for (unsigned I = 0, E = Args.size(); I != E; ++I) | |||
| 5045 | ArgCopy.push_back(Args[I].getArgument()); | |||
| 5046 | return getDependentTemplateSpecializationType(Keyword, NNS, Name, ArgCopy); | |||
| 5047 | } | |||
| 5048 | ||||
| 5049 | QualType | |||
| 5050 | ASTContext::getDependentTemplateSpecializationType( | |||
| 5051 | ElaboratedTypeKeyword Keyword, | |||
| 5052 | NestedNameSpecifier *NNS, | |||
| 5053 | const IdentifierInfo *Name, | |||
| 5054 | ArrayRef<TemplateArgument> Args) const { | |||
| 5055 | assert((!NNS || NNS->isDependent()) &&(static_cast <bool> ((!NNS || NNS->isDependent()) && "nested-name-specifier must be dependent") ? void (0) : __assert_fail ("(!NNS || NNS->isDependent()) && \"nested-name-specifier must be dependent\"" , "clang/lib/AST/ASTContext.cpp", 5056, __extension__ __PRETTY_FUNCTION__ )) | |||
| 5056 | "nested-name-specifier must be dependent")(static_cast <bool> ((!NNS || NNS->isDependent()) && "nested-name-specifier must be dependent") ? void (0) : __assert_fail ("(!NNS || NNS->isDependent()) && \"nested-name-specifier must be dependent\"" , "clang/lib/AST/ASTContext.cpp", 5056, __extension__ __PRETTY_FUNCTION__ )); | |||
| 5057 | ||||
| 5058 | llvm::FoldingSetNodeID ID; | |||
| 5059 | DependentTemplateSpecializationType::Profile(ID, *this, Keyword, NNS, | |||
| 5060 | Name, Args); | |||
| 5061 | ||||
| 5062 | void *InsertPos = nullptr; | |||
| 5063 | DependentTemplateSpecializationType *T | |||
| 5064 | = DependentTemplateSpecializationTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
| 5065 | if (T) | |||
| 5066 | return QualType(T, 0); | |||
| 5067 | ||||
| 5068 | NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); | |||
| 5069 | ||||
| 5070 | ElaboratedTypeKeyword CanonKeyword = Keyword; | |||
| 5071 | if (Keyword == ETK_None) CanonKeyword = ETK_Typename; | |||
| 5072 | ||||
| 5073 | SmallVector<TemplateArgument, 16> CanonArgs; | |||
| 5074 | bool AnyNonCanonArgs = | |||
| 5075 | ::getCanonicalTemplateArguments(*this, Args, CanonArgs); | |||
| 5076 | ||||
| 5077 | QualType Canon; | |||
| 5078 | if (AnyNonCanonArgs || CanonNNS != NNS || CanonKeyword != Keyword) { | |||
| 5079 | Canon = getDependentTemplateSpecializationType(CanonKeyword, CanonNNS, | |||
| 5080 | Name, | |||
| 5081 | CanonArgs); | |||
| 5082 | ||||
| 5083 | // Find the insert position again. | |||
| 5084 | DependentTemplateSpecializationTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
| 5085 | } | |||
| 5086 | ||||
| 5087 | void *Mem = Allocate((sizeof(DependentTemplateSpecializationType) + | |||
| 5088 | sizeof(TemplateArgument) * Args.size()), | |||
| 5089 | TypeAlignment); | |||
| 5090 | T = new (Mem) DependentTemplateSpecializationType(Keyword, NNS, | |||
| 5091 | Name, Args, Canon); | |||
| 5092 | Types.push_back(T); | |||
| 5093 | DependentTemplateSpecializationTypes.InsertNode(T, InsertPos); | |||
| 5094 | return QualType(T, 0); | |||
| 5095 | } | |||
| 5096 | ||||
| 5097 | TemplateArgument ASTContext::getInjectedTemplateArg(NamedDecl *Param) { | |||
| 5098 | TemplateArgument Arg; | |||
| 5099 | if (const auto *TTP = dyn_cast<TemplateTypeParmDecl>(Param)) { | |||
| 5100 | QualType ArgType = getTypeDeclType(TTP); | |||
| 5101 | if (TTP->isParameterPack()) | |||
| 5102 | ArgType = getPackExpansionType(ArgType, None); | |||
| 5103 | ||||
| 5104 | Arg = TemplateArgument(ArgType); | |||
| 5105 | } else if (auto *NTTP = dyn_cast<NonTypeTemplateParmDecl>(Param)) { | |||
| 5106 | QualType T = | |||
| 5107 | NTTP->getType().getNonPackExpansionType().getNonLValueExprType(*this); | |||
| 5108 | // For class NTTPs, ensure we include the 'const' so the type matches that | |||
| 5109 | // of a real template argument. | |||
| 5110 | // FIXME: It would be more faithful to model this as something like an | |||
| 5111 | // lvalue-to-rvalue conversion applied to a const-qualified lvalue. | |||
| 5112 | if (T->isRecordType()) | |||
| 5113 | T.addConst(); | |||
| 5114 | Expr *E = new (*this) DeclRefExpr( | |||
| 5115 | *this, NTTP, /*enclosing*/ false, T, | |||
| 5116 | Expr::getValueKindForType(NTTP->getType()), NTTP->getLocation()); | |||
| 5117 | ||||
| 5118 | if (NTTP->isParameterPack()) | |||
| 5119 | E = new (*this) PackExpansionExpr(DependentTy, E, NTTP->getLocation(), | |||
| 5120 | None); | |||
| 5121 | Arg = TemplateArgument(E); | |||
| 5122 | } else { | |||
| 5123 | auto *TTP = cast<TemplateTemplateParmDecl>(Param); | |||
| 5124 | if (TTP->isParameterPack()) | |||
| 5125 | Arg = TemplateArgument(TemplateName(TTP), Optional<unsigned>()); | |||
| 5126 | else | |||
| 5127 | Arg = TemplateArgument(TemplateName(TTP)); | |||
| 5128 | } | |||
| 5129 | ||||
| 5130 | if (Param->isTemplateParameterPack()) | |||
| 5131 | Arg = TemplateArgument::CreatePackCopy(*this, Arg); | |||
| 5132 | ||||
| 5133 | return Arg; | |||
| 5134 | } | |||
| 5135 | ||||
| 5136 | void | |||
| 5137 | ASTContext::getInjectedTemplateArgs(const TemplateParameterList *Params, | |||
| 5138 | SmallVectorImpl<TemplateArgument> &Args) { | |||
| 5139 | Args.reserve(Args.size() + Params->size()); | |||
| 5140 | ||||
| 5141 | for (NamedDecl *Param : *Params) | |||
| 5142 | Args.push_back(getInjectedTemplateArg(Param)); | |||
| 5143 | } | |||
| 5144 | ||||
| 5145 | QualType ASTContext::getPackExpansionType(QualType Pattern, | |||
| 5146 | Optional<unsigned> NumExpansions, | |||
| 5147 | bool ExpectPackInType) { | |||
| 5148 | assert((!ExpectPackInType || Pattern->containsUnexpandedParameterPack()) &&(static_cast <bool> ((!ExpectPackInType || Pattern-> containsUnexpandedParameterPack()) && "Pack expansions must expand one or more parameter packs" ) ? void (0) : __assert_fail ("(!ExpectPackInType || Pattern->containsUnexpandedParameterPack()) && \"Pack expansions must expand one or more parameter packs\"" , "clang/lib/AST/ASTContext.cpp", 5149, __extension__ __PRETTY_FUNCTION__ )) | |||
| 5149 | "Pack expansions must expand one or more parameter packs")(static_cast <bool> ((!ExpectPackInType || Pattern-> containsUnexpandedParameterPack()) && "Pack expansions must expand one or more parameter packs" ) ? void (0) : __assert_fail ("(!ExpectPackInType || Pattern->containsUnexpandedParameterPack()) && \"Pack expansions must expand one or more parameter packs\"" , "clang/lib/AST/ASTContext.cpp", 5149, __extension__ __PRETTY_FUNCTION__ )); | |||
| 5150 | ||||
| 5151 | llvm::FoldingSetNodeID ID; | |||
| 5152 | PackExpansionType::Profile(ID, Pattern, NumExpansions); | |||
| 5153 | ||||
| 5154 | void *InsertPos = nullptr; | |||
| 5155 | PackExpansionType *T = PackExpansionTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
| 5156 | if (T) | |||
| 5157 | return QualType(T, 0); | |||
| 5158 | ||||
| 5159 | QualType Canon; | |||
| 5160 | if (!Pattern.isCanonical()) { | |||
| 5161 | Canon = getPackExpansionType(getCanonicalType(Pattern), NumExpansions, | |||
| 5162 | /*ExpectPackInType=*/false); | |||
| 5163 | ||||
| 5164 | // Find the insert position again, in case we inserted an element into | |||
| 5165 | // PackExpansionTypes and invalidated our insert position. | |||
| 5166 | PackExpansionTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
| 5167 | } | |||
| 5168 | ||||
| 5169 | T = new (*this, TypeAlignment) | |||
| 5170 | PackExpansionType(Pattern, Canon, NumExpansions); | |||
| 5171 | Types.push_back(T); | |||
| 5172 | PackExpansionTypes.InsertNode(T, InsertPos); | |||
| 5173 | return QualType(T, 0); | |||
| 5174 | } | |||
| 5175 | ||||
| 5176 | /// CmpProtocolNames - Comparison predicate for sorting protocols | |||
| 5177 | /// alphabetically. | |||
| 5178 | static int CmpProtocolNames(ObjCProtocolDecl *const *LHS, | |||
| 5179 | ObjCProtocolDecl *const *RHS) { | |||
| 5180 | return DeclarationName::compare((*LHS)->getDeclName(), (*RHS)->getDeclName()); | |||
| 5181 | } | |||
| 5182 | ||||
| 5183 | static bool areSortedAndUniqued(ArrayRef<ObjCProtocolDecl *> Protocols) { | |||
| 5184 | if (Protocols.empty()) return true; | |||
| 5185 | ||||
| 5186 | if (Protocols[0]->getCanonicalDecl() != Protocols[0]) | |||
| 5187 | return false; | |||
| 5188 | ||||
| 5189 | for (unsigned i = 1; i != Protocols.size(); ++i) | |||
| 5190 | if (CmpProtocolNames(&Protocols[i - 1], &Protocols[i]) >= 0 || | |||
| 5191 | Protocols[i]->getCanonicalDecl() != Protocols[i]) | |||
| 5192 | return false; | |||
| 5193 | return true; | |||
| 5194 | } | |||
| 5195 | ||||
| 5196 | static void | |||
| 5197 | SortAndUniqueProtocols(SmallVectorImpl<ObjCProtocolDecl *> &Protocols) { | |||
| 5198 | // Sort protocols, keyed by name. | |||
| 5199 | llvm::array_pod_sort(Protocols.begin(), Protocols.end(), CmpProtocolNames); | |||
| 5200 | ||||
| 5201 | // Canonicalize. | |||
| 5202 | for (ObjCProtocolDecl *&P : Protocols) | |||
| 5203 | P = P->getCanonicalDecl(); | |||
| 5204 | ||||
| 5205 | // Remove duplicates. | |||
| 5206 | auto ProtocolsEnd = std::unique(Protocols.begin(), Protocols.end()); | |||
| 5207 | Protocols.erase(ProtocolsEnd, Protocols.end()); | |||
| 5208 | } | |||
| 5209 | ||||
| 5210 | QualType ASTContext::getObjCObjectType(QualType BaseType, | |||
| 5211 | ObjCProtocolDecl * const *Protocols, | |||
| 5212 | unsigned NumProtocols) const { | |||
| 5213 | return getObjCObjectType(BaseType, {}, | |||
| 5214 | llvm::makeArrayRef(Protocols, NumProtocols), | |||
| 5215 | /*isKindOf=*/false); | |||
| 5216 | } | |||
| 5217 | ||||
| 5218 | QualType ASTContext::getObjCObjectType( | |||
| 5219 | QualType baseType, | |||
| 5220 | ArrayRef<QualType> typeArgs, | |||
| 5221 | ArrayRef<ObjCProtocolDecl *> protocols, | |||
| 5222 | bool isKindOf) const { | |||
| 5223 | // If the base type is an interface and there aren't any protocols or | |||
| 5224 | // type arguments to add, then the interface type will do just fine. | |||
| 5225 | if (typeArgs.empty() && protocols.empty() && !isKindOf && | |||
| 5226 | isa<ObjCInterfaceType>(baseType)) | |||
| 5227 | return baseType; | |||
| 5228 | ||||
| 5229 | // Look in the folding set for an existing type. | |||
| 5230 | llvm::FoldingSetNodeID ID; | |||
| 5231 | ObjCObjectTypeImpl::Profile(ID, baseType, typeArgs, protocols, isKindOf); | |||
| 5232 | void *InsertPos = nullptr; | |||
| 5233 | if (ObjCObjectType *QT = ObjCObjectTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
| 5234 | return QualType(QT, 0); | |||
| 5235 | ||||
| 5236 | // Determine the type arguments to be used for canonicalization, | |||
| 5237 | // which may be explicitly specified here or written on the base | |||
| 5238 | // type. | |||
| 5239 | ArrayRef<QualType> effectiveTypeArgs = typeArgs; | |||
| 5240 | if (effectiveTypeArgs.empty()) { | |||
| 5241 | if (const auto *baseObject = baseType->getAs<ObjCObjectType>()) | |||
| 5242 | effectiveTypeArgs = baseObject->getTypeArgs(); | |||
| 5243 | } | |||
| 5244 | ||||
| 5245 | // Build the canonical type, which has the canonical base type and a | |||
| 5246 | // sorted-and-uniqued list of protocols and the type arguments | |||
| 5247 | // canonicalized. | |||
| 5248 | QualType canonical; | |||
| 5249 | bool typeArgsAreCanonical = llvm::all_of( | |||
| 5250 | effectiveTypeArgs, [&](QualType type) { return type.isCanonical(); }); | |||
| 5251 | bool protocolsSorted = areSortedAndUniqued(protocols); | |||
| 5252 | if (!typeArgsAreCanonical || !protocolsSorted || !baseType.isCanonical()) { | |||
| 5253 | // Determine the canonical type arguments. | |||
| 5254 | ArrayRef<QualType> canonTypeArgs; | |||
| 5255 | SmallVector<QualType, 4> canonTypeArgsVec; | |||
| 5256 | if (!typeArgsAreCanonical) { | |||
| 5257 | canonTypeArgsVec.reserve(effectiveTypeArgs.size()); | |||
| 5258 | for (auto typeArg : effectiveTypeArgs) | |||
| 5259 | canonTypeArgsVec.push_back(getCanonicalType(typeArg)); | |||
| 5260 | canonTypeArgs = canonTypeArgsVec; | |||
| 5261 | } else { | |||
| 5262 | canonTypeArgs = effectiveTypeArgs; | |||
| 5263 | } | |||
| 5264 | ||||
| 5265 | ArrayRef<ObjCProtocolDecl *> canonProtocols; | |||
| 5266 | SmallVector<ObjCProtocolDecl*, 8> canonProtocolsVec; | |||
| 5267 | if (!protocolsSorted) { | |||
| 5268 | canonProtocolsVec.append(protocols.begin(), protocols.end()); | |||
| 5269 | SortAndUniqueProtocols(canonProtocolsVec); | |||
| 5270 | canonProtocols = canonProtocolsVec; | |||
| 5271 | } else { | |||
| 5272 | canonProtocols = protocols; | |||
| 5273 | } | |||
| 5274 | ||||
| 5275 | canonical = getObjCObjectType(getCanonicalType(baseType), canonTypeArgs, | |||
| 5276 | canonProtocols, isKindOf); | |||
| 5277 | ||||
| 5278 | // Regenerate InsertPos. | |||
| 5279 | ObjCObjectTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
| 5280 | } | |||
| 5281 | ||||
| 5282 | unsigned size = sizeof(ObjCObjectTypeImpl); | |||
| 5283 | size += typeArgs.size() * sizeof(QualType); | |||
| 5284 | size += protocols.size() * sizeof(ObjCProtocolDecl *); | |||
| 5285 | void *mem = Allocate(size, TypeAlignment); | |||
| 5286 | auto *T = | |||
| 5287 | new (mem) ObjCObjectTypeImpl(canonical, baseType, typeArgs, protocols, | |||
| 5288 | isKindOf); | |||
| 5289 | ||||
| 5290 | Types.push_back(T); | |||
| 5291 | ObjCObjectTypes.InsertNode(T, InsertPos); | |||
| 5292 | return QualType(T, 0); | |||
| 5293 | } | |||
| 5294 | ||||
| 5295 | /// Apply Objective-C protocol qualifiers to the given type. | |||
| 5296 | /// If this is for the canonical type of a type parameter, we can apply | |||
| 5297 | /// protocol qualifiers on the ObjCObjectPointerType. | |||
| 5298 | QualType | |||
| 5299 | ASTContext::applyObjCProtocolQualifiers(QualType type, | |||
| 5300 | ArrayRef<ObjCProtocolDecl *> protocols, bool &hasError, | |||
| 5301 | bool allowOnPointerType) const { | |||
| 5302 | hasError = false; | |||
| 5303 | ||||
| 5304 | if (const auto *objT = dyn_cast<ObjCTypeParamType>(type.getTypePtr())) { | |||
| 5305 | return getObjCTypeParamType(objT->getDecl(), protocols); | |||
| 5306 | } | |||
| 5307 | ||||
| 5308 | // Apply protocol qualifiers to ObjCObjectPointerType. | |||
| 5309 | if (allowOnPointerType) { | |||
| 5310 | if (const auto *objPtr = | |||
| 5311 | dyn_cast<ObjCObjectPointerType>(type.getTypePtr())) { | |||
| 5312 | const ObjCObjectType *objT = objPtr->getObjectType(); | |||
| 5313 | // Merge protocol lists and construct ObjCObjectType. | |||
| 5314 | SmallVector<ObjCProtocolDecl*, 8> protocolsVec; | |||
| 5315 | protocolsVec.append(objT->qual_begin(), | |||
| 5316 | objT->qual_end()); | |||
| 5317 | protocolsVec.append(protocols.begin(), protocols.end()); | |||
| 5318 | ArrayRef<ObjCProtocolDecl *> protocols = protocolsVec; | |||
| 5319 | type = getObjCObjectType( | |||
| 5320 | objT->getBaseType(), | |||
| 5321 | objT->getTypeArgsAsWritten(), | |||
| 5322 | protocols, | |||
| 5323 | objT->isKindOfTypeAsWritten()); | |||
| 5324 | return getObjCObjectPointerType(type); | |||
| 5325 | } | |||
| 5326 | } | |||
| 5327 | ||||
| 5328 | // Apply protocol qualifiers to ObjCObjectType. | |||
| 5329 | if (const auto *objT = dyn_cast<ObjCObjectType>(type.getTypePtr())){ | |||
| 5330 | // FIXME: Check for protocols to which the class type is already | |||
| 5331 | // known to conform. | |||
| 5332 | ||||
| 5333 | return getObjCObjectType(objT->getBaseType(), | |||
| 5334 | objT->getTypeArgsAsWritten(), | |||
| 5335 | protocols, | |||
| 5336 | objT->isKindOfTypeAsWritten()); | |||
| 5337 | } | |||
| 5338 | ||||
| 5339 | // If the canonical type is ObjCObjectType, ... | |||
| 5340 | if (type->isObjCObjectType()) { | |||
| 5341 | // Silently overwrite any existing protocol qualifiers. | |||
| 5342 | // TODO: determine whether that's the right thing to do. | |||
| 5343 | ||||
| 5344 | // FIXME: Check for protocols to which the class type is already | |||
| 5345 | // known to conform. | |||
| 5346 | return getObjCObjectType(type, {}, protocols, false); | |||
| 5347 | } | |||
| 5348 | ||||
| 5349 | // id<protocol-list> | |||
| 5350 | if (type->isObjCIdType()) { | |||
| 5351 | const auto *objPtr = type->castAs<ObjCObjectPointerType>(); | |||
| 5352 | type = getObjCObjectType(ObjCBuiltinIdTy, {}, protocols, | |||
| 5353 | objPtr->isKindOfType()); | |||
| 5354 | return getObjCObjectPointerType(type); | |||
| 5355 | } | |||
| 5356 | ||||
| 5357 | // Class<protocol-list> | |||
| 5358 | if (type->isObjCClassType()) { | |||
| 5359 | const auto *objPtr = type->castAs<ObjCObjectPointerType>(); | |||
| 5360 | type = getObjCObjectType(ObjCBuiltinClassTy, {}, protocols, | |||
| 5361 | objPtr->isKindOfType()); | |||
| 5362 | return getObjCObjectPointerType(type); | |||
| 5363 | } | |||
| 5364 | ||||
| 5365 | hasError = true; | |||
| 5366 | return type; | |||
| 5367 | } | |||
| 5368 | ||||
| 5369 | QualType | |||
| 5370 | ASTContext::getObjCTypeParamType(const ObjCTypeParamDecl *Decl, | |||
| 5371 | ArrayRef<ObjCProtocolDecl *> protocols) const { | |||
| 5372 | // Look in the folding set for an existing type. | |||
| 5373 | llvm::FoldingSetNodeID ID; | |||
| 5374 | ObjCTypeParamType::Profile(ID, Decl, Decl->getUnderlyingType(), protocols); | |||
| 5375 | void *InsertPos = nullptr; | |||
| 5376 | if (ObjCTypeParamType *TypeParam = | |||
| 5377 | ObjCTypeParamTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
| 5378 | return QualType(TypeParam, 0); | |||
| 5379 | ||||
| 5380 | // We canonicalize to the underlying type. | |||
| 5381 | QualType Canonical = getCanonicalType(Decl->getUnderlyingType()); | |||
| 5382 | if (!protocols.empty()) { | |||
| 5383 | // Apply the protocol qualifers. | |||
| 5384 | bool hasError; | |||
| 5385 | Canonical = getCanonicalType(applyObjCProtocolQualifiers( | |||
| 5386 | Canonical, protocols, hasError, true /*allowOnPointerType*/)); | |||
| 5387 | assert(!hasError && "Error when apply protocol qualifier to bound type")(static_cast <bool> (!hasError && "Error when apply protocol qualifier to bound type" ) ? void (0) : __assert_fail ("!hasError && \"Error when apply protocol qualifier to bound type\"" , "clang/lib/AST/ASTContext.cpp", 5387, __extension__ __PRETTY_FUNCTION__ )); | |||
| 5388 | } | |||
| 5389 | ||||
| 5390 | unsigned size = sizeof(ObjCTypeParamType); | |||
| 5391 | size += protocols.size() * sizeof(ObjCProtocolDecl *); | |||
| 5392 | void *mem = Allocate(size, TypeAlignment); | |||
| 5393 | auto *newType = new (mem) ObjCTypeParamType(Decl, Canonical, protocols); | |||
| 5394 | ||||
| 5395 | Types.push_back(newType); | |||
| 5396 | ObjCTypeParamTypes.InsertNode(newType, InsertPos); | |||
| 5397 | return QualType(newType, 0); | |||
| 5398 | } | |||
| 5399 | ||||
| 5400 | void ASTContext::adjustObjCTypeParamBoundType(const ObjCTypeParamDecl *Orig, | |||
| 5401 | ObjCTypeParamDecl *New) const { | |||
| 5402 | New->setTypeSourceInfo(getTrivialTypeSourceInfo(Orig->getUnderlyingType())); | |||
| 5403 | // Update TypeForDecl after updating TypeSourceInfo. | |||
| 5404 | auto NewTypeParamTy = cast<ObjCTypeParamType>(New->getTypeForDecl()); | |||
| 5405 | SmallVector<ObjCProtocolDecl *, 8> protocols; | |||
| 5406 | protocols.append(NewTypeParamTy->qual_begin(), NewTypeParamTy->qual_end()); | |||
| 5407 | QualType UpdatedTy = getObjCTypeParamType(New, protocols); | |||
| 5408 | New->setTypeForDecl(UpdatedTy.getTypePtr()); | |||
| 5409 | } | |||
| 5410 | ||||
| 5411 | /// ObjCObjectAdoptsQTypeProtocols - Checks that protocols in IC's | |||
| 5412 | /// protocol list adopt all protocols in QT's qualified-id protocol | |||
| 5413 | /// list. | |||
| 5414 | bool ASTContext::ObjCObjectAdoptsQTypeProtocols(QualType QT, | |||
| 5415 | ObjCInterfaceDecl *IC) { | |||
| 5416 | if (!QT->isObjCQualifiedIdType()) | |||
| 5417 | return false; | |||
| 5418 | ||||
| 5419 | if (const auto *OPT = QT->getAs<ObjCObjectPointerType>()) { | |||
| 5420 | // If both the right and left sides have qualifiers. | |||
| 5421 | for (auto *Proto : OPT->quals()) { | |||
| 5422 | if (!IC->ClassImplementsProtocol(Proto, false)) | |||
| 5423 | return false; | |||
| 5424 | } | |||
| 5425 | return true; | |||
| 5426 | } | |||
| 5427 | return false; | |||
| 5428 | } | |||
| 5429 | ||||
| 5430 | /// QIdProtocolsAdoptObjCObjectProtocols - Checks that protocols in | |||
| 5431 | /// QT's qualified-id protocol list adopt all protocols in IDecl's list | |||
| 5432 | /// of protocols. | |||
| 5433 | bool ASTContext::QIdProtocolsAdoptObjCObjectProtocols(QualType QT, | |||
| 5434 | ObjCInterfaceDecl *IDecl) { | |||
| 5435 | if (!QT->isObjCQualifiedIdType()) | |||
| 5436 | return false; | |||
| 5437 | const auto *OPT = QT->getAs<ObjCObjectPointerType>(); | |||
| 5438 | if (!OPT) | |||
| 5439 | return false; | |||
| 5440 | if (!IDecl->hasDefinition()) | |||
| 5441 | return false; | |||
| 5442 | llvm::SmallPtrSet<ObjCProtocolDecl *, 8> InheritedProtocols; | |||
| 5443 | CollectInheritedProtocols(IDecl, InheritedProtocols); | |||
| 5444 | if (InheritedProtocols.empty()) | |||
| 5445 | return false; | |||
| 5446 | // Check that if every protocol in list of id<plist> conforms to a protocol | |||
| 5447 | // of IDecl's, then bridge casting is ok. | |||
| 5448 | bool Conforms = false; | |||
| 5449 | for (auto *Proto : OPT->quals()) { | |||
| 5450 | Conforms = false; | |||
| 5451 | for (auto *PI : InheritedProtocols) { | |||
| 5452 | if (ProtocolCompatibleWithProtocol(Proto, PI)) { | |||
| 5453 | Conforms = true; | |||
| 5454 | break; | |||
| 5455 | } | |||
| 5456 | } | |||
| 5457 | if (!Conforms) | |||
| 5458 | break; | |||
| 5459 | } | |||
| 5460 | if (Conforms) | |||
| 5461 | return true; | |||
| 5462 | ||||
| 5463 | for (auto *PI : InheritedProtocols) { | |||
| 5464 | // If both the right and left sides have qualifiers. | |||
| 5465 | bool Adopts = false; | |||
| 5466 | for (auto *Proto : OPT->quals()) { | |||
| 5467 | // return 'true' if 'PI' is in the inheritance hierarchy of Proto | |||
| 5468 | if ((Adopts = ProtocolCompatibleWithProtocol(PI, Proto))) | |||
| 5469 | break; | |||
| 5470 | } | |||
| 5471 | if (!Adopts) | |||
| 5472 | return false; | |||
| 5473 | } | |||
| 5474 | return true; | |||
| 5475 | } | |||
| 5476 | ||||
| 5477 | /// getObjCObjectPointerType - Return a ObjCObjectPointerType type for | |||
| 5478 | /// the given object type. | |||
| 5479 | QualType ASTContext::getObjCObjectPointerType(QualType ObjectT) const { | |||
| 5480 | llvm::FoldingSetNodeID ID; | |||
| 5481 | ObjCObjectPointerType::Profile(ID, ObjectT); | |||
| 5482 | ||||
| 5483 | void *InsertPos = nullptr; | |||
| 5484 | if (ObjCObjectPointerType *QT = | |||
| 5485 | ObjCObjectPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
| 5486 | return QualType(QT, 0); | |||
| 5487 | ||||
| 5488 | // Find the canonical object type. | |||
| 5489 | QualType Canonical; | |||
| 5490 | if (!ObjectT.isCanonical()) { | |||
| 5491 | Canonical = getObjCObjectPointerType(getCanonicalType(ObjectT)); | |||
| 5492 | ||||
| 5493 | // Regenerate InsertPos. | |||
| 5494 | ObjCObjectPointerTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
| 5495 | } | |||
| 5496 | ||||
| 5497 | // No match. | |||
| 5498 | void *Mem = Allocate(sizeof(ObjCObjectPointerType), TypeAlignment); | |||
| 5499 | auto *QType = | |||
| 5500 | new (Mem) ObjCObjectPointerType(Canonical, ObjectT); | |||
| 5501 | ||||
| 5502 | Types.push_back(QType); | |||
| 5503 | ObjCObjectPointerTypes.InsertNode(QType, InsertPos); | |||
| 5504 | return QualType(QType, 0); | |||
| 5505 | } | |||
| 5506 | ||||
| 5507 | /// getObjCInterfaceType - Return the unique reference to the type for the | |||
| 5508 | /// specified ObjC interface decl. The list of protocols is optional. | |||
| 5509 | QualType ASTContext::getObjCInterfaceType(const ObjCInterfaceDecl *Decl, | |||
| 5510 | ObjCInterfaceDecl *PrevDecl) const { | |||
| 5511 | if (Decl->TypeForDecl) | |||
| 5512 | return QualType(Decl->TypeForDecl, 0); | |||
| 5513 | ||||
| 5514 | if (PrevDecl) { | |||
| 5515 | assert(PrevDecl->TypeForDecl && "previous decl has no TypeForDecl")(static_cast <bool> (PrevDecl->TypeForDecl && "previous decl has no TypeForDecl") ? void (0) : __assert_fail ("PrevDecl->TypeForDecl && \"previous decl has no TypeForDecl\"" , "clang/lib/AST/ASTContext.cpp", 5515, __extension__ __PRETTY_FUNCTION__ )); | |||
| 5516 | Decl->TypeForDecl = PrevDecl->TypeForDecl; | |||
| 5517 | return QualType(PrevDecl->TypeForDecl, 0); | |||
| 5518 | } | |||
| 5519 | ||||
| 5520 | // Prefer the definition, if there is one. | |||
| 5521 | if (const ObjCInterfaceDecl *Def = Decl->getDefinition()) | |||
| 5522 | Decl = Def; | |||
| 5523 | ||||
| 5524 | void *Mem = Allocate(sizeof(ObjCInterfaceType), TypeAlignment); | |||
| 5525 | auto *T = new (Mem) ObjCInterfaceType(Decl); | |||
| 5526 | Decl->TypeForDecl = T; | |||
| 5527 | Types.push_back(T); | |||
| 5528 | return QualType(T, 0); | |||
| 5529 | } | |||
| 5530 | ||||
| 5531 | /// getTypeOfExprType - Unlike many "get<Type>" functions, we can't unique | |||
| 5532 | /// TypeOfExprType AST's (since expression's are never shared). For example, | |||
| 5533 | /// multiple declarations that refer to "typeof(x)" all contain different | |||
| 5534 | /// DeclRefExpr's. This doesn't effect the type checker, since it operates | |||
| 5535 | /// on canonical type's (which are always unique). | |||
| 5536 | QualType ASTContext::getTypeOfExprType(Expr *tofExpr) const { | |||
| 5537 | TypeOfExprType *toe; | |||
| 5538 | if (tofExpr->isTypeDependent()) { | |||
| 5539 | llvm::FoldingSetNodeID ID; | |||
| 5540 | DependentTypeOfExprType::Profile(ID, *this, tofExpr); | |||
| 5541 | ||||
| 5542 | void *InsertPos = nullptr; | |||
| 5543 | DependentTypeOfExprType *Canon | |||
| 5544 | = DependentTypeOfExprTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
| 5545 | if (Canon) { | |||
| 5546 | // We already have a "canonical" version of an identical, dependent | |||
| 5547 | // typeof(expr) type. Use that as our canonical type. | |||
| 5548 | toe = new (*this, TypeAlignment) TypeOfExprType(tofExpr, | |||
| 5549 | QualType((TypeOfExprType*)Canon, 0)); | |||
| 5550 | } else { | |||
| 5551 | // Build a new, canonical typeof(expr) type. | |||
| 5552 | Canon | |||
| 5553 | = new (*this, TypeAlignment) DependentTypeOfExprType(*this, tofExpr); | |||
| 5554 | DependentTypeOfExprTypes.InsertNode(Canon, InsertPos); | |||
| 5555 | toe = Canon; | |||
| 5556 | } | |||
| 5557 | } else { | |||
| 5558 | QualType Canonical = getCanonicalType(tofExpr->getType()); | |||
| 5559 | toe = new (*this, TypeAlignment) TypeOfExprType(tofExpr, Canonical); | |||
| 5560 | } | |||
| 5561 | Types.push_back(toe); | |||
| 5562 | return QualType(toe, 0); | |||
| 5563 | } | |||
| 5564 | ||||
| 5565 | /// getTypeOfType - Unlike many "get<Type>" functions, we don't unique | |||
| 5566 | /// TypeOfType nodes. The only motivation to unique these nodes would be | |||
| 5567 | /// memory savings. Since typeof(t) is fairly uncommon, space shouldn't be | |||
| 5568 | /// an issue. This doesn't affect the type checker, since it operates | |||
| 5569 | /// on canonical types (which are always unique). | |||
| 5570 | QualType ASTContext::getTypeOfType(QualType tofType) const { | |||
| 5571 | QualType Canonical = getCanonicalType(tofType); | |||
| 5572 | auto *tot = new (*this, TypeAlignment) TypeOfType(tofType, Canonical); | |||
| 5573 | Types.push_back(tot); | |||
| 5574 | return QualType(tot, 0); | |||
| 5575 | } | |||
| 5576 | ||||
| 5577 | /// getReferenceQualifiedType - Given an expr, will return the type for | |||
| 5578 | /// that expression, as in [dcl.type.simple]p4 but without taking id-expressions | |||
| 5579 | /// and class member access into account. | |||
| 5580 | QualType ASTContext::getReferenceQualifiedType(const Expr *E) const { | |||
| 5581 | // C++11 [dcl.type.simple]p4: | |||
| 5582 | // [...] | |||
| 5583 | QualType T = E->getType(); | |||
| 5584 | switch (E->getValueKind()) { | |||
| 5585 | // - otherwise, if e is an xvalue, decltype(e) is T&&, where T is the | |||
| 5586 | // type of e; | |||
| 5587 | case VK_XValue: | |||
| 5588 | return getRValueReferenceType(T); | |||
| 5589 | // - otherwise, if e is an lvalue, decltype(e) is T&, where T is the | |||
| 5590 | // type of e; | |||
| 5591 | case VK_LValue: | |||
| 5592 | return getLValueReferenceType(T); | |||
| 5593 | // - otherwise, decltype(e) is the type of e. | |||
| 5594 | case VK_PRValue: | |||
| 5595 | return T; | |||
| 5596 | } | |||
| 5597 | llvm_unreachable("Unknown value kind")::llvm::llvm_unreachable_internal("Unknown value kind", "clang/lib/AST/ASTContext.cpp" , 5597); | |||
| 5598 | } | |||
| 5599 | ||||
| 5600 | /// Unlike many "get<Type>" functions, we don't unique DecltypeType | |||
| 5601 | /// nodes. This would never be helpful, since each such type has its own | |||
| 5602 | /// expression, and would not give a significant memory saving, since there | |||
| 5603 | /// is an Expr tree under each such type. | |||
| 5604 | QualType ASTContext::getDecltypeType(Expr *e, QualType UnderlyingType) const { | |||
| 5605 | DecltypeType *dt; | |||
| 5606 | ||||
| 5607 | // C++11 [temp.type]p2: | |||
| 5608 | // If an expression e involves a template parameter, decltype(e) denotes a | |||
| 5609 | // unique dependent type. Two such decltype-specifiers refer to the same | |||
| 5610 | // type only if their expressions are equivalent (14.5.6.1). | |||
| 5611 | if (e->isInstantiationDependent()) { | |||
| 5612 | llvm::FoldingSetNodeID ID; | |||
| 5613 | DependentDecltypeType::Profile(ID, *this, e); | |||
| 5614 | ||||
| 5615 | void *InsertPos = nullptr; | |||
| 5616 | DependentDecltypeType *Canon | |||
| 5617 | = DependentDecltypeTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
| 5618 | if (!Canon) { | |||
| 5619 | // Build a new, canonical decltype(expr) type. | |||
| 5620 | Canon = new (*this, TypeAlignment) DependentDecltypeType(*this, e); | |||
| 5621 | DependentDecltypeTypes.InsertNode(Canon, InsertPos); | |||
| 5622 | } | |||
| 5623 | dt = new (*this, TypeAlignment) | |||
| 5624 | DecltypeType(e, UnderlyingType, QualType((DecltypeType *)Canon, 0)); | |||
| 5625 | } else { | |||
| 5626 | dt = new (*this, TypeAlignment) | |||
| 5627 | DecltypeType(e, UnderlyingType, getCanonicalType(UnderlyingType)); | |||
| 5628 | } | |||
| 5629 | Types.push_back(dt); | |||
| 5630 | return QualType(dt, 0); | |||
| 5631 | } | |||
| 5632 | ||||
| 5633 | /// getUnaryTransformationType - We don't unique these, since the memory | |||
| 5634 | /// savings are minimal and these are rare. | |||
| 5635 | QualType ASTContext::getUnaryTransformType(QualType BaseType, | |||
| 5636 | QualType UnderlyingType, | |||
| 5637 | UnaryTransformType::UTTKind Kind) | |||
| 5638 | const { | |||
| 5639 | UnaryTransformType *ut = nullptr; | |||
| 5640 | ||||
| 5641 | if (BaseType->isDependentType()) { | |||
| 5642 | // Look in the folding set for an existing type. | |||
| 5643 | llvm::FoldingSetNodeID ID; | |||
| 5644 | DependentUnaryTransformType::Profile(ID, getCanonicalType(BaseType), Kind); | |||
| 5645 | ||||
| 5646 | void *InsertPos = nullptr; | |||
| 5647 | DependentUnaryTransformType *Canon | |||
| 5648 | = DependentUnaryTransformTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
| 5649 | ||||
| 5650 | if (!Canon) { | |||
| 5651 | // Build a new, canonical __underlying_type(type) type. | |||
| 5652 | Canon = new (*this, TypeAlignment) | |||
| 5653 | DependentUnaryTransformType(*this, getCanonicalType(BaseType), | |||
| 5654 | Kind); | |||
| 5655 | DependentUnaryTransformTypes.InsertNode(Canon, InsertPos); | |||
| 5656 | } | |||
| 5657 | ut = new (*this, TypeAlignment) UnaryTransformType (BaseType, | |||
| 5658 | QualType(), Kind, | |||
| 5659 | QualType(Canon, 0)); | |||
| 5660 | } else { | |||
| 5661 | QualType CanonType = getCanonicalType(UnderlyingType); | |||
| 5662 | ut = new (*this, TypeAlignment) UnaryTransformType (BaseType, | |||
| 5663 | UnderlyingType, Kind, | |||
| 5664 | CanonType); | |||
| 5665 | } | |||
| 5666 | Types.push_back(ut); | |||
| 5667 | return QualType(ut, 0); | |||
| 5668 | } | |||
| 5669 | ||||
| 5670 | QualType ASTContext::getAutoTypeInternal( | |||
| 5671 | QualType DeducedType, AutoTypeKeyword Keyword, bool IsDependent, | |||
| 5672 | bool IsPack, ConceptDecl *TypeConstraintConcept, | |||
| 5673 | ArrayRef<TemplateArgument> TypeConstraintArgs, bool IsCanon) const { | |||
| 5674 | if (DeducedType.isNull() && Keyword == AutoTypeKeyword::Auto && | |||
| 5675 | !TypeConstraintConcept && !IsDependent) | |||
| 5676 | return getAutoDeductType(); | |||
| 5677 | ||||
| 5678 | // Look in the folding set for an existing type. | |||
| 5679 | void *InsertPos = nullptr; | |||
| 5680 | llvm::FoldingSetNodeID ID; | |||
| 5681 | AutoType::Profile(ID, *this, DeducedType, Keyword, IsDependent, | |||
| 5682 | TypeConstraintConcept, TypeConstraintArgs); | |||
| 5683 | if (AutoType *AT = AutoTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
| 5684 | return QualType(AT, 0); | |||
| 5685 | ||||
| 5686 | QualType Canon; | |||
| 5687 | if (!IsCanon) { | |||
| 5688 | if (DeducedType.isNull()) { | |||
| 5689 | SmallVector<TemplateArgument, 4> CanonArgs; | |||
| 5690 | bool AnyNonCanonArgs = | |||
| 5691 | ::getCanonicalTemplateArguments(*this, TypeConstraintArgs, CanonArgs); | |||
| 5692 | if (AnyNonCanonArgs) { | |||
| 5693 | Canon = getAutoTypeInternal(QualType(), Keyword, IsDependent, IsPack, | |||
| 5694 | TypeConstraintConcept, CanonArgs, true); | |||
| 5695 | // Find the insert position again. | |||
| 5696 | AutoTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
| 5697 | } | |||
| 5698 | } else { | |||
| 5699 | Canon = DeducedType.getCanonicalType(); | |||
| 5700 | } | |||
| 5701 | } | |||
| 5702 | ||||
| 5703 | void *Mem = Allocate(sizeof(AutoType) + | |||
| 5704 | sizeof(TemplateArgument) * TypeConstraintArgs.size(), | |||
| 5705 | TypeAlignment); | |||
| 5706 | auto *AT = new (Mem) AutoType( | |||
| 5707 | DeducedType, Keyword, | |||
| 5708 | (IsDependent ? TypeDependence::DependentInstantiation | |||
| 5709 | : TypeDependence::None) | | |||
| 5710 | (IsPack ? TypeDependence::UnexpandedPack : TypeDependence::None), | |||
| 5711 | Canon, TypeConstraintConcept, TypeConstraintArgs); | |||
| 5712 | Types.push_back(AT); | |||
| 5713 | AutoTypes.InsertNode(AT, InsertPos); | |||
| 5714 | return QualType(AT, 0); | |||
| 5715 | } | |||
| 5716 | ||||
| 5717 | /// getAutoType - Return the uniqued reference to the 'auto' type which has been | |||
| 5718 | /// deduced to the given type, or to the canonical undeduced 'auto' type, or the | |||
| 5719 | /// canonical deduced-but-dependent 'auto' type. | |||
| 5720 | QualType | |||
| 5721 | ASTContext::getAutoType(QualType DeducedType, AutoTypeKeyword Keyword, | |||
| 5722 | bool IsDependent, bool IsPack, | |||
| 5723 | ConceptDecl *TypeConstraintConcept, | |||
| 5724 | ArrayRef<TemplateArgument> TypeConstraintArgs) const { | |||
| 5725 | assert((!IsPack || IsDependent) && "only use IsPack for a dependent pack")(static_cast <bool> ((!IsPack || IsDependent) && "only use IsPack for a dependent pack") ? void (0) : __assert_fail ("(!IsPack || IsDependent) && \"only use IsPack for a dependent pack\"" , "clang/lib/AST/ASTContext.cpp", 5725, __extension__ __PRETTY_FUNCTION__ )); | |||
| 5726 | assert((!IsDependent || DeducedType.isNull()) &&(static_cast <bool> ((!IsDependent || DeducedType.isNull ()) && "A dependent auto should be undeduced") ? void (0) : __assert_fail ("(!IsDependent || DeducedType.isNull()) && \"A dependent auto should be undeduced\"" , "clang/lib/AST/ASTContext.cpp", 5727, __extension__ __PRETTY_FUNCTION__ )) | |||
| 5727 | "A dependent auto should be undeduced")(static_cast <bool> ((!IsDependent || DeducedType.isNull ()) && "A dependent auto should be undeduced") ? void (0) : __assert_fail ("(!IsDependent || DeducedType.isNull()) && \"A dependent auto should be undeduced\"" , "clang/lib/AST/ASTContext.cpp", 5727, __extension__ __PRETTY_FUNCTION__ )); | |||
| 5728 | return getAutoTypeInternal(DeducedType, Keyword, IsDependent, IsPack, | |||
| 5729 | TypeConstraintConcept, TypeConstraintArgs); | |||
| 5730 | } | |||
| 5731 | ||||
| 5732 | /// Return the uniqued reference to the deduced template specialization type | |||
| 5733 | /// which has been deduced to the given type, or to the canonical undeduced | |||
| 5734 | /// such type, or the canonical deduced-but-dependent such type. | |||
| 5735 | QualType ASTContext::getDeducedTemplateSpecializationType( | |||
| 5736 | TemplateName Template, QualType DeducedType, bool IsDependent) const { | |||
| 5737 | // Look in the folding set for an existing type. | |||
| 5738 | void *InsertPos = nullptr; | |||
| 5739 | llvm::FoldingSetNodeID ID; | |||
| 5740 | DeducedTemplateSpecializationType::Profile(ID, Template, DeducedType, | |||
| 5741 | IsDependent); | |||
| 5742 | if (DeducedTemplateSpecializationType *DTST = | |||
| 5743 | DeducedTemplateSpecializationTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
| 5744 | return QualType(DTST, 0); | |||
| 5745 | ||||
| 5746 | auto *DTST = new (*this, TypeAlignment) | |||
| 5747 | DeducedTemplateSpecializationType(Template, DeducedType, IsDependent); | |||
| 5748 | llvm::FoldingSetNodeID TempID; | |||
| 5749 | DTST->Profile(TempID); | |||
| 5750 | assert(ID == TempID && "ID does not match")(static_cast <bool> (ID == TempID && "ID does not match" ) ? void (0) : __assert_fail ("ID == TempID && \"ID does not match\"" , "clang/lib/AST/ASTContext.cpp", 5750, __extension__ __PRETTY_FUNCTION__ )); | |||
| 5751 | Types.push_back(DTST); | |||
| 5752 | DeducedTemplateSpecializationTypes.InsertNode(DTST, InsertPos); | |||
| 5753 | return QualType(DTST, 0); | |||
| 5754 | } | |||
| 5755 | ||||
| 5756 | /// getAtomicType - Return the uniqued reference to the atomic type for | |||
| 5757 | /// the given value type. | |||
| 5758 | QualType ASTContext::getAtomicType(QualType T) const { | |||
| 5759 | // Unique pointers, to guarantee there is only one pointer of a particular | |||
| 5760 | // structure. | |||
| 5761 | llvm::FoldingSetNodeID ID; | |||
| 5762 | AtomicType::Profile(ID, T); | |||
| 5763 | ||||
| 5764 | void *InsertPos = nullptr; | |||
| 5765 | if (AtomicType *AT = AtomicTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
| 5766 | return QualType(AT, 0); | |||
| 5767 | ||||
| 5768 | // If the atomic value type isn't canonical, this won't be a canonical type | |||
| 5769 | // either, so fill in the canonical type field. | |||
| 5770 | QualType Canonical; | |||
| 5771 | if (!T.isCanonical()) { | |||
| 5772 | Canonical = getAtomicType(getCanonicalType(T)); | |||
| 5773 | ||||
| 5774 | // Get the new insert position for the node we care about. | |||
| 5775 | AtomicType *NewIP = AtomicTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
| 5776 | assert(!NewIP && "Shouldn't be in the map!")(static_cast <bool> (!NewIP && "Shouldn't be in the map!" ) ? void (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\"" , "clang/lib/AST/ASTContext.cpp", 5776, __extension__ __PRETTY_FUNCTION__ )); (void)NewIP; | |||
| 5777 | } | |||
| 5778 | auto *New = new (*this, TypeAlignment) AtomicType(T, Canonical); | |||
| 5779 | Types.push_back(New); | |||
| 5780 | AtomicTypes.InsertNode(New, InsertPos); | |||
| 5781 | return QualType(New, 0); | |||
| 5782 | } | |||
| 5783 | ||||
| 5784 | /// getAutoDeductType - Get type pattern for deducing against 'auto'. | |||
| 5785 | QualType ASTContext::getAutoDeductType() const { | |||
| 5786 | if (AutoDeductTy.isNull()) | |||
| 5787 | AutoDeductTy = QualType(new (*this, TypeAlignment) | |||
| 5788 | AutoType(QualType(), AutoTypeKeyword::Auto, | |||
| 5789 | TypeDependence::None, QualType(), | |||
| 5790 | /*concept*/ nullptr, /*args*/ {}), | |||
| 5791 | 0); | |||
| 5792 | return AutoDeductTy; | |||
| 5793 | } | |||
| 5794 | ||||
| 5795 | /// getAutoRRefDeductType - Get type pattern for deducing against 'auto &&'. | |||
| 5796 | QualType ASTContext::getAutoRRefDeductType() const { | |||
| 5797 | if (AutoRRefDeductTy.isNull()) | |||
| 5798 | AutoRRefDeductTy = getRValueReferenceType(getAutoDeductType()); | |||
| 5799 | assert(!AutoRRefDeductTy.isNull() && "can't build 'auto &&' pattern")(static_cast <bool> (!AutoRRefDeductTy.isNull() && "can't build 'auto &&' pattern") ? void (0) : __assert_fail ("!AutoRRefDeductTy.isNull() && \"can't build 'auto &&' pattern\"" , "clang/lib/AST/ASTContext.cpp", 5799, __extension__ __PRETTY_FUNCTION__ )); | |||
| 5800 | return AutoRRefDeductTy; | |||
| 5801 | } | |||
| 5802 | ||||
| 5803 | /// getTagDeclType - Return the unique reference to the type for the | |||
| 5804 | /// specified TagDecl (struct/union/class/enum) decl. | |||
| 5805 | QualType ASTContext::getTagDeclType(const TagDecl *Decl) const { | |||
| 5806 | assert(Decl)(static_cast <bool> (Decl) ? void (0) : __assert_fail ( "Decl", "clang/lib/AST/ASTContext.cpp", 5806, __extension__ __PRETTY_FUNCTION__ )); | |||
| 5807 | // FIXME: What is the design on getTagDeclType when it requires casting | |||
| 5808 | // away const? mutable? | |||
| 5809 | return getTypeDeclType(const_cast<TagDecl*>(Decl)); | |||
| 5810 | } | |||
| 5811 | ||||
| 5812 | /// getSizeType - Return the unique type for "size_t" (C99 7.17), the result | |||
| 5813 | /// of the sizeof operator (C99 6.5.3.4p4). The value is target dependent and | |||
| 5814 | /// needs to agree with the definition in <stddef.h>. | |||
| 5815 | CanQualType ASTContext::getSizeType() const { | |||
| 5816 | return getFromTargetType(Target->getSizeType()); | |||
| 5817 | } | |||
| 5818 | ||||
| 5819 | /// Return the unique signed counterpart of the integer type | |||
| 5820 | /// corresponding to size_t. | |||
| 5821 | CanQualType ASTContext::getSignedSizeType() const { | |||
| 5822 | return getFromTargetType(Target->getSignedSizeType()); | |||
| 5823 | } | |||
| 5824 | ||||
| 5825 | /// getIntMaxType - Return the unique type for "intmax_t" (C99 7.18.1.5). | |||
| 5826 | CanQualType ASTContext::getIntMaxType() const { | |||
| 5827 | return getFromTargetType(Target->getIntMaxType()); | |||
| 5828 | } | |||
| 5829 | ||||
| 5830 | /// getUIntMaxType - Return the unique type for "uintmax_t" (C99 7.18.1.5). | |||
| 5831 | CanQualType ASTContext::getUIntMaxType() const { | |||
| 5832 | return getFromTargetType(Target->getUIntMaxType()); | |||
| 5833 | } | |||
| 5834 | ||||
| 5835 | /// getSignedWCharType - Return the type of "signed wchar_t". | |||
| 5836 | /// Used when in C++, as a GCC extension. | |||
| 5837 | QualType ASTContext::getSignedWCharType() const { | |||
| 5838 | // FIXME: derive from "Target" ? | |||
| 5839 | return WCharTy; | |||
| 5840 | } | |||
| 5841 | ||||
| 5842 | /// getUnsignedWCharType - Return the type of "unsigned wchar_t". | |||
| 5843 | /// Used when in C++, as a GCC extension. | |||
| 5844 | QualType ASTContext::getUnsignedWCharType() const { | |||
| 5845 | // FIXME: derive from "Target" ? | |||
| 5846 | return UnsignedIntTy; | |||
| 5847 | } | |||
| 5848 | ||||
| 5849 | QualType ASTContext::getIntPtrType() const { | |||
| 5850 | return getFromTargetType(Target->getIntPtrType()); | |||
| 5851 | } | |||
| 5852 | ||||
| 5853 | QualType ASTContext::getUIntPtrType() const { | |||
| 5854 | return getCorrespondingUnsignedType(getIntPtrType()); | |||
| 5855 | } | |||
| 5856 | ||||
| 5857 | /// getPointerDiffType - Return the unique type for "ptrdiff_t" (C99 7.17) | |||
| 5858 | /// defined in <stddef.h>. Pointer - pointer requires this (C99 6.5.6p9). | |||
| 5859 | QualType ASTContext::getPointerDiffType() const { | |||
| 5860 | return getFromTargetType(Target->getPtrDiffType(0)); | |||
| 5861 | } | |||
| 5862 | ||||
| 5863 | /// Return the unique unsigned counterpart of "ptrdiff_t" | |||
| 5864 | /// integer type. The standard (C11 7.21.6.1p7) refers to this type | |||
| 5865 | /// in the definition of %tu format specifier. | |||
| 5866 | QualType ASTContext::getUnsignedPointerDiffType() const { | |||
| 5867 | return getFromTargetType(Target->getUnsignedPtrDiffType(0)); | |||
| 5868 | } | |||
| 5869 | ||||
| 5870 | /// Return the unique type for "pid_t" defined in | |||
| 5871 | /// <sys/types.h>. We need this to compute the correct type for vfork(). | |||
| 5872 | QualType ASTContext::getProcessIDType() const { | |||
| 5873 | return getFromTargetType(Target->getProcessIDType()); | |||
| 5874 | } | |||
| 5875 | ||||
| 5876 | //===----------------------------------------------------------------------===// | |||
| 5877 | // Type Operators | |||
| 5878 | //===----------------------------------------------------------------------===// | |||
| 5879 | ||||
| 5880 | CanQualType ASTContext::getCanonicalParamType(QualType T) const { | |||
| 5881 | // Push qualifiers into arrays, and then discard any remaining | |||
| 5882 | // qualifiers. | |||
| 5883 | T = getCanonicalType(T); | |||
| 5884 | T = getVariableArrayDecayedType(T); | |||
| 5885 | const Type *Ty = T.getTypePtr(); | |||
| 5886 | QualType Result; | |||
| 5887 | if (isa<ArrayType>(Ty)) { | |||
| 5888 | Result = getArrayDecayedType(QualType(Ty,0)); | |||
| 5889 | } else if (isa<FunctionType>(Ty)) { | |||
| 5890 | Result = getPointerType(QualType(Ty, 0)); | |||
| 5891 | } else { | |||
| 5892 | Result = QualType(Ty, 0); | |||
| 5893 | } | |||
| 5894 | ||||
| 5895 | return CanQualType::CreateUnsafe(Result); | |||
| 5896 | } | |||
| 5897 | ||||
| 5898 | QualType ASTContext::getUnqualifiedArrayType(QualType type, | |||
| 5899 | Qualifiers &quals) { | |||
| 5900 | SplitQualType splitType = type.getSplitUnqualifiedType(); | |||
| 5901 | ||||
| 5902 | // FIXME: getSplitUnqualifiedType() actually walks all the way to | |||
| 5903 | // the unqualified desugared type and then drops it on the floor. | |||
| 5904 | // We then have to strip that sugar back off with | |||
| 5905 | // getUnqualifiedDesugaredType(), which is silly. | |||
| 5906 | const auto *AT = | |||
| 5907 | dyn_cast<ArrayType>(splitType.Ty->getUnqualifiedDesugaredType()); | |||
| 5908 | ||||
| 5909 | // If we don't have an array, just use the results in splitType. | |||
| 5910 | if (!AT) { | |||
| 5911 | quals = splitType.Quals; | |||
| 5912 | return QualType(splitType.Ty, 0); | |||
| 5913 | } | |||
| 5914 | ||||
| 5915 | // Otherwise, recurse on the array's element type. | |||
| 5916 | QualType elementType = AT->getElementType(); | |||
| 5917 | QualType unqualElementType = getUnqualifiedArrayType(elementType, quals); | |||
| 5918 | ||||
| 5919 | // If that didn't change the element type, AT has no qualifiers, so we | |||
| 5920 | // can just use the results in splitType. | |||
| 5921 | if (elementType == unqualElementType) { | |||
| 5922 | assert(quals.empty())(static_cast <bool> (quals.empty()) ? void (0) : __assert_fail ("quals.empty()", "clang/lib/AST/ASTContext.cpp", 5922, __extension__ __PRETTY_FUNCTION__)); // from the recursive call | |||
| 5923 | quals = splitType.Quals; | |||
| 5924 | return QualType(splitType.Ty, 0); | |||
| 5925 | } | |||
| 5926 | ||||
| 5927 | // Otherwise, add in the qualifiers from the outermost type, then | |||
| 5928 | // build the type back up. | |||
| 5929 | quals.addConsistentQualifiers(splitType.Quals); | |||
| 5930 | ||||
| 5931 | if (const auto *CAT = dyn_cast<ConstantArrayType>(AT)) { | |||
| 5932 | return getConstantArrayType(unqualElementType, CAT->getSize(), | |||
| 5933 | CAT->getSizeExpr(), CAT->getSizeModifier(), 0); | |||
| 5934 | } | |||
| 5935 | ||||
| 5936 | if (const auto *IAT = dyn_cast<IncompleteArrayType>(AT)) { | |||
| 5937 | return getIncompleteArrayType(unqualElementType, IAT->getSizeModifier(), 0); | |||
| 5938 | } | |||
| 5939 | ||||
| 5940 | if (const auto *VAT = dyn_cast<VariableArrayType>(AT)) { | |||
| 5941 | return getVariableArrayType(unqualElementType, | |||
| 5942 | VAT->getSizeExpr(), | |||
| 5943 | VAT->getSizeModifier(), | |||
| 5944 | VAT->getIndexTypeCVRQualifiers(), | |||
| 5945 | VAT->getBracketsRange()); | |||
| 5946 | } | |||
| 5947 | ||||
| 5948 | const auto *DSAT = cast<DependentSizedArrayType>(AT); | |||
| 5949 | return getDependentSizedArrayType(unqualElementType, DSAT->getSizeExpr(), | |||
| 5950 | DSAT->getSizeModifier(), 0, | |||
| 5951 | SourceRange()); | |||
| 5952 | } | |||
| 5953 | ||||
| 5954 | /// Attempt to unwrap two types that may both be array types with the same bound | |||
| 5955 | /// (or both be array types of unknown bound) for the purpose of comparing the | |||
| 5956 | /// cv-decomposition of two types per C++ [conv.qual]. | |||
| 5957 | /// | |||
| 5958 | /// \param AllowPiMismatch Allow the Pi1 and Pi2 to differ as described in | |||
| 5959 | /// C++20 [conv.qual], if permitted by the current language mode. | |||
| 5960 | void ASTContext::UnwrapSimilarArrayTypes(QualType &T1, QualType &T2, | |||
| 5961 | bool AllowPiMismatch) { | |||
| 5962 | while (true) { | |||
| 5963 | auto *AT1 = getAsArrayType(T1); | |||
| 5964 | if (!AT1) | |||
| 5965 | return; | |||
| 5966 | ||||
| 5967 | auto *AT2 = getAsArrayType(T2); | |||
| 5968 | if (!AT2) | |||
| 5969 | return; | |||
| 5970 | ||||
| 5971 | // If we don't have two array types with the same constant bound nor two | |||
| 5972 | // incomplete array types, we've unwrapped everything we can. | |||
| 5973 | // C++20 also permits one type to be a constant array type and the other | |||
| 5974 | // to be an incomplete array type. | |||
| 5975 | // FIXME: Consider also unwrapping array of unknown bound and VLA. | |||
| 5976 | if (auto *CAT1 = dyn_cast<ConstantArrayType>(AT1)) { | |||
| 5977 | auto *CAT2 = dyn_cast<ConstantArrayType>(AT2); | |||
| 5978 | if (!((CAT2 && CAT1->getSize() == CAT2->getSize()) || | |||
| 5979 | (AllowPiMismatch && getLangOpts().CPlusPlus20 && | |||
| 5980 | isa<IncompleteArrayType>(AT2)))) | |||
| 5981 | return; | |||
| 5982 | } else if (isa<IncompleteArrayType>(AT1)) { | |||
| 5983 | if (!(isa<IncompleteArrayType>(AT2) || | |||
| 5984 | (AllowPiMismatch && getLangOpts().CPlusPlus20 && | |||
| 5985 | isa<ConstantArrayType>(AT2)))) | |||
| 5986 | return; | |||
| 5987 | } else { | |||
| 5988 | return; | |||
| 5989 | } | |||
| 5990 | ||||
| 5991 | T1 = AT1->getElementType(); | |||
| 5992 | T2 = AT2->getElementType(); | |||
| 5993 | } | |||
| 5994 | } | |||
| 5995 | ||||
| 5996 | /// Attempt to unwrap two types that may be similar (C++ [conv.qual]). | |||
| 5997 | /// | |||
| 5998 | /// If T1 and T2 are both pointer types of the same kind, or both array types | |||
| 5999 | /// with the same bound, unwraps layers from T1 and T2 until a pointer type is | |||
| 6000 | /// unwrapped. Top-level qualifiers on T1 and T2 are ignored. | |||
| 6001 | /// | |||
| 6002 | /// This function will typically be called in a loop that successively | |||
| 6003 | /// "unwraps" pointer and pointer-to-member types to compare them at each | |||
| 6004 | /// level. | |||
| 6005 | /// | |||
| 6006 | /// \param AllowPiMismatch Allow the Pi1 and Pi2 to differ as described in | |||
| 6007 | /// C++20 [conv.qual], if permitted by the current language mode. | |||
| 6008 | /// | |||
| 6009 | /// \return \c true if a pointer type was unwrapped, \c false if we reached a | |||
| 6010 | /// pair of types that can't be unwrapped further. | |||
| 6011 | bool ASTContext::UnwrapSimilarTypes(QualType &T1, QualType &T2, | |||
| 6012 | bool AllowPiMismatch) { | |||
| 6013 | UnwrapSimilarArrayTypes(T1, T2, AllowPiMismatch); | |||
| 6014 | ||||
| 6015 | const auto *T1PtrType = T1->getAs<PointerType>(); | |||
| 6016 | const auto *T2PtrType = T2->getAs<PointerType>(); | |||
| 6017 | if (T1PtrType && T2PtrType) { | |||
| 6018 | T1 = T1PtrType->getPointeeType(); | |||
| 6019 | T2 = T2PtrType->getPointeeType(); | |||
| 6020 | return true; | |||
| 6021 | } | |||
| 6022 | ||||
| 6023 | const auto *T1MPType = T1->getAs<MemberPointerType>(); | |||
| 6024 | const auto *T2MPType = T2->getAs<MemberPointerType>(); | |||
| 6025 | if (T1MPType && T2MPType && | |||
| 6026 | hasSameUnqualifiedType(QualType(T1MPType->getClass(), 0), | |||
| 6027 | QualType(T2MPType->getClass(), 0))) { | |||
| 6028 | T1 = T1MPType->getPointeeType(); | |||
| 6029 | T2 = T2MPType->getPointeeType(); | |||
| 6030 | return true; | |||
| 6031 | } | |||
| 6032 | ||||
| 6033 | if (getLangOpts().ObjC) { | |||
| 6034 | const auto *T1OPType = T1->getAs<ObjCObjectPointerType>(); | |||
| 6035 | const auto *T2OPType = T2->getAs<ObjCObjectPointerType>(); | |||
| 6036 | if (T1OPType && T2OPType) { | |||
| 6037 | T1 = T1OPType->getPointeeType(); | |||
| 6038 | T2 = T2OPType->getPointeeType(); | |||
| 6039 | return true; | |||
| 6040 | } | |||
| 6041 | } | |||
| 6042 | ||||
| 6043 | // FIXME: Block pointers, too? | |||
| 6044 | ||||
| 6045 | return false; | |||
| 6046 | } | |||
| 6047 | ||||
| 6048 | bool ASTContext::hasSimilarType(QualType T1, QualType T2) { | |||
| 6049 | while (true) { | |||
| 6050 | Qualifiers Quals; | |||
| 6051 | T1 = getUnqualifiedArrayType(T1, Quals); | |||
| 6052 | T2 = getUnqualifiedArrayType(T2, Quals); | |||
| 6053 | if (hasSameType(T1, T2)) | |||
| 6054 | return true; | |||
| 6055 | if (!UnwrapSimilarTypes(T1, T2)) | |||
| 6056 | return false; | |||
| 6057 | } | |||
| 6058 | } | |||
| 6059 | ||||
| 6060 | bool ASTContext::hasCvrSimilarType(QualType T1, QualType T2) { | |||
| 6061 | while (true) { | |||
| 6062 | Qualifiers Quals1, Quals2; | |||
| 6063 | T1 = getUnqualifiedArrayType(T1, Quals1); | |||
| 6064 | T2 = getUnqualifiedArrayType(T2, Quals2); | |||
| 6065 | ||||
| 6066 | Quals1.removeCVRQualifiers(); | |||
| 6067 | Quals2.removeCVRQualifiers(); | |||
| 6068 | if (Quals1 != Quals2) | |||
| 6069 | return false; | |||
| 6070 | ||||
| 6071 | if (hasSameType(T1, T2)) | |||
| 6072 | return true; | |||
| 6073 | ||||
| 6074 | if (!UnwrapSimilarTypes(T1, T2, /*AllowPiMismatch*/ false)) | |||
| 6075 | return false; | |||
| 6076 | } | |||
| 6077 | } | |||
| 6078 | ||||
| 6079 | DeclarationNameInfo | |||
| 6080 | ASTContext::getNameForTemplate(TemplateName Name, | |||
| 6081 | SourceLocation NameLoc) const { | |||
| 6082 | switch (Name.getKind()) { | |||
| 6083 | case TemplateName::QualifiedTemplate: | |||
| 6084 | case TemplateName::Template: | |||
| 6085 | // DNInfo work in progress: CHECKME: what about DNLoc? | |||
| 6086 | return DeclarationNameInfo(Name.getAsTemplateDecl()->getDeclName(), | |||
| 6087 | NameLoc); | |||
| 6088 | ||||
| 6089 | case TemplateName::OverloadedTemplate: { | |||
| 6090 | OverloadedTemplateStorage *Storage = Name.getAsOverloadedTemplate(); | |||
| 6091 | // DNInfo work in progress: CHECKME: what about DNLoc? | |||
| 6092 | return DeclarationNameInfo((*Storage->begin())->getDeclName(), NameLoc); | |||
| 6093 | } | |||
| 6094 | ||||
| 6095 | case TemplateName::AssumedTemplate: { | |||
| 6096 | AssumedTemplateStorage *Storage = Name.getAsAssumedTemplateName(); | |||
| 6097 | return DeclarationNameInfo(Storage->getDeclName(), NameLoc); | |||
| 6098 | } | |||
| 6099 | ||||
| 6100 | case TemplateName::DependentTemplate: { | |||
| 6101 | DependentTemplateName *DTN = Name.getAsDependentTemplateName(); | |||
| 6102 | DeclarationName DName; | |||
| 6103 | if (DTN->isIdentifier()) { | |||
| 6104 | DName = DeclarationNames.getIdentifier(DTN->getIdentifier()); | |||
| 6105 | return DeclarationNameInfo(DName, NameLoc); | |||
| 6106 | } else { | |||
| 6107 | DName = DeclarationNames.getCXXOperatorName(DTN->getOperator()); | |||
| 6108 | // DNInfo work in progress: FIXME: source locations? | |||
| 6109 | DeclarationNameLoc DNLoc = | |||
| 6110 | DeclarationNameLoc::makeCXXOperatorNameLoc(SourceRange()); | |||
| 6111 | return DeclarationNameInfo(DName, NameLoc, DNLoc); | |||
| 6112 | } | |||
| 6113 | } | |||
| 6114 | ||||
| 6115 | case TemplateName::SubstTemplateTemplateParm: { | |||
| 6116 | SubstTemplateTemplateParmStorage *subst | |||
| 6117 | = Name.getAsSubstTemplateTemplateParm(); | |||
| 6118 | return DeclarationNameInfo(subst->getParameter()->getDeclName(), | |||
| 6119 | NameLoc); | |||
| 6120 | } | |||
| 6121 | ||||
| 6122 | case TemplateName::SubstTemplateTemplateParmPack: { | |||
| 6123 | SubstTemplateTemplateParmPackStorage *subst | |||
| 6124 | = Name.getAsSubstTemplateTemplateParmPack(); | |||
| 6125 | return DeclarationNameInfo(subst->getParameterPack()->getDeclName(), | |||
| 6126 | NameLoc); | |||
| 6127 | } | |||
| 6128 | case TemplateName::UsingTemplate: | |||
| 6129 | return DeclarationNameInfo(Name.getAsUsingShadowDecl()->getDeclName(), | |||
| 6130 | NameLoc); | |||
| 6131 | } | |||
| 6132 | ||||
| 6133 | llvm_unreachable("bad template name kind!")::llvm::llvm_unreachable_internal("bad template name kind!", "clang/lib/AST/ASTContext.cpp" , 6133); | |||
| 6134 | } | |||
| 6135 | ||||
| 6136 | TemplateName | |||
| 6137 | ASTContext::getCanonicalTemplateName(const TemplateName &Name) const { | |||
| 6138 | switch (Name.getKind()) { | |||
| 6139 | case TemplateName::UsingTemplate: | |||
| 6140 | case TemplateName::QualifiedTemplate: | |||
| 6141 | case TemplateName::Template: { | |||
| 6142 | TemplateDecl *Template = Name.getAsTemplateDecl(); | |||
| 6143 | if (auto *TTP = dyn_cast<TemplateTemplateParmDecl>(Template)) | |||
| 6144 | Template = getCanonicalTemplateTemplateParmDecl(TTP); | |||
| 6145 | ||||
| 6146 | // The canonical template name is the canonical template declaration. | |||
| 6147 | return TemplateName(cast<TemplateDecl>(Template->getCanonicalDecl())); | |||
| 6148 | } | |||
| 6149 | ||||
| 6150 | case TemplateName::OverloadedTemplate: | |||
| 6151 | case TemplateName::AssumedTemplate: | |||
| 6152 | llvm_unreachable("cannot canonicalize unresolved template")::llvm::llvm_unreachable_internal("cannot canonicalize unresolved template" , "clang/lib/AST/ASTContext.cpp", 6152); | |||
| 6153 | ||||
| 6154 | case TemplateName::DependentTemplate: { | |||
| 6155 | DependentTemplateName *DTN = Name.getAsDependentTemplateName(); | |||
| 6156 | assert(DTN && "Non-dependent template names must refer to template decls.")(static_cast <bool> (DTN && "Non-dependent template names must refer to template decls." ) ? void (0) : __assert_fail ("DTN && \"Non-dependent template names must refer to template decls.\"" , "clang/lib/AST/ASTContext.cpp", 6156, __extension__ __PRETTY_FUNCTION__ )); | |||
| 6157 | return DTN->CanonicalTemplateName; | |||
| 6158 | } | |||
| 6159 | ||||
| 6160 | case TemplateName::SubstTemplateTemplateParm: { | |||
| 6161 | SubstTemplateTemplateParmStorage *subst | |||
| 6162 | = Name.getAsSubstTemplateTemplateParm(); | |||
| 6163 | return getCanonicalTemplateName(subst->getReplacement()); | |||
| 6164 | } | |||
| 6165 | ||||
| 6166 | case TemplateName::SubstTemplateTemplateParmPack: { | |||
| 6167 | SubstTemplateTemplateParmPackStorage *subst | |||
| 6168 | = Name.getAsSubstTemplateTemplateParmPack(); | |||
| 6169 | TemplateTemplateParmDecl *canonParameter | |||
| 6170 | = getCanonicalTemplateTemplateParmDecl(subst->getParameterPack()); | |||
| 6171 | TemplateArgument canonArgPack | |||
| 6172 | = getCanonicalTemplateArgument(subst->getArgumentPack()); | |||
| 6173 | return getSubstTemplateTemplateParmPack(canonParameter, canonArgPack); | |||
| 6174 | } | |||
| 6175 | } | |||
| 6176 | ||||
| 6177 | llvm_unreachable("bad template name!")::llvm::llvm_unreachable_internal("bad template name!", "clang/lib/AST/ASTContext.cpp" , 6177); | |||
| 6178 | } | |||
| 6179 | ||||
| 6180 | bool ASTContext::hasSameTemplateName(const TemplateName &X, | |||
| 6181 | const TemplateName &Y) const { | |||
| 6182 | return getCanonicalTemplateName(X).getAsVoidPointer() == | |||
| 6183 | getCanonicalTemplateName(Y).getAsVoidPointer(); | |||
| 6184 | } | |||
| 6185 | ||||
| 6186 | bool ASTContext::isSameTemplateParameter(const NamedDecl *X, | |||
| 6187 | const NamedDecl *Y) { | |||
| 6188 | if (X->getKind() != Y->getKind()) | |||
| 6189 | return false; | |||
| 6190 | ||||
| 6191 | if (auto *TX = dyn_cast<TemplateTypeParmDecl>(X)) { | |||
| 6192 | auto *TY = cast<TemplateTypeParmDecl>(Y); | |||
| 6193 | if (TX->isParameterPack() != TY->isParameterPack()) | |||
| 6194 | return false; | |||
| 6195 | if (TX->hasTypeConstraint() != TY->hasTypeConstraint()) | |||
| 6196 | return false; | |||
| 6197 | const TypeConstraint *TXTC = TX->getTypeConstraint(); | |||
| 6198 | const TypeConstraint *TYTC = TY->getTypeConstraint(); | |||
| 6199 | if (!TXTC != !TYTC) | |||
| 6200 | return false; | |||
| 6201 | if (TXTC && TYTC) { | |||
| 6202 | auto *NCX = TXTC->getNamedConcept(); | |||
| 6203 | auto *NCY = TYTC->getNamedConcept(); | |||
| 6204 | if (!NCX || !NCY || !isSameEntity(NCX, NCY)) | |||
| 6205 | return false; | |||
| 6206 | if (TXTC->hasExplicitTemplateArgs() != TYTC->hasExplicitTemplateArgs()) | |||
| 6207 | return false; | |||
| 6208 | if (TXTC->hasExplicitTemplateArgs()) { | |||
| 6209 | auto *TXTCArgs = TXTC->getTemplateArgsAsWritten(); | |||
| 6210 | auto *TYTCArgs = TYTC->getTemplateArgsAsWritten(); | |||
| 6211 | if (TXTCArgs->NumTemplateArgs != TYTCArgs->NumTemplateArgs) | |||
| 6212 | return false; | |||
| 6213 | llvm::FoldingSetNodeID XID, YID; | |||
| 6214 | for (auto &ArgLoc : TXTCArgs->arguments()) | |||
| 6215 | ArgLoc.getArgument().Profile(XID, X->getASTContext()); | |||
| 6216 | for (auto &ArgLoc : TYTCArgs->arguments()) | |||
| 6217 | ArgLoc.getArgument().Profile(YID, Y->getASTContext()); | |||
| 6218 | if (XID != YID) | |||
| 6219 | return false; | |||
| 6220 | } | |||
| 6221 | } | |||
| 6222 | return true; | |||
| 6223 | } | |||
| 6224 | ||||
| 6225 | if (auto *TX = dyn_cast<NonTypeTemplateParmDecl>(X)) { | |||
| 6226 | auto *TY = cast<NonTypeTemplateParmDecl>(Y); | |||
| 6227 | return TX->isParameterPack() == TY->isParameterPack() && | |||
| 6228 | TX->getASTContext().hasSameType(TX->getType(), TY->getType()); | |||
| 6229 | } | |||
| 6230 | ||||
| 6231 | auto *TX = cast<TemplateTemplateParmDecl>(X); | |||
| 6232 | auto *TY = cast<TemplateTemplateParmDecl>(Y); | |||
| 6233 | return TX->isParameterPack() == TY->isParameterPack() && | |||
| 6234 | isSameTemplateParameterList(TX->getTemplateParameters(), | |||
| 6235 | TY->getTemplateParameters()); | |||
| 6236 | } | |||
| 6237 | ||||
| 6238 | bool ASTContext::isSameTemplateParameterList(const TemplateParameterList *X, | |||
| 6239 | const TemplateParameterList *Y) { | |||
| 6240 | if (X->size() != Y->size()) | |||
| 6241 | return false; | |||
| 6242 | ||||
| 6243 | for (unsigned I = 0, N = X->size(); I != N; ++I) | |||
| 6244 | if (!isSameTemplateParameter(X->getParam(I), Y->getParam(I))) | |||
| 6245 | return false; | |||
| 6246 | ||||
| 6247 | const Expr *XRC = X->getRequiresClause(); | |||
| 6248 | const Expr *YRC = Y->getRequiresClause(); | |||
| 6249 | if (!XRC != !YRC) | |||
| 6250 | return false; | |||
| 6251 | if (XRC) { | |||
| 6252 | llvm::FoldingSetNodeID XRCID, YRCID; | |||
| 6253 | XRC->Profile(XRCID, *this, /*Canonical=*/true); | |||
| 6254 | YRC->Profile(YRCID, *this, /*Canonical=*/true); | |||
| 6255 | if (XRCID != YRCID) | |||
| 6256 | return false; | |||
| 6257 | } | |||
| 6258 | ||||
| 6259 | return true; | |||
| 6260 | } | |||
| 6261 | ||||
| 6262 | static NamespaceDecl *getNamespace(const NestedNameSpecifier *X) { | |||
| 6263 | if (auto *NS = X->getAsNamespace()) | |||
| 6264 | return NS; | |||
| 6265 | if (auto *NAS = X->getAsNamespaceAlias()) | |||
| 6266 | return NAS->getNamespace(); | |||
| 6267 | return nullptr; | |||
| 6268 | } | |||
| 6269 | ||||
| 6270 | static bool isSameQualifier(const NestedNameSpecifier *X, | |||
| 6271 | const NestedNameSpecifier *Y) { | |||
| 6272 | if (auto *NSX = getNamespace(X)) { | |||
| 6273 | auto *NSY = getNamespace(Y); | |||
| 6274 | if (!NSY || NSX->getCanonicalDecl() != NSY->getCanonicalDecl()) | |||
| 6275 | return false; | |||
| 6276 | } else if (X->getKind() != Y->getKind()) | |||
| 6277 | return false; | |||
| 6278 | ||||
| 6279 | // FIXME: For namespaces and types, we're permitted to check that the entity | |||
| 6280 | // is named via the same tokens. We should probably do so. | |||
| 6281 | switch (X->getKind()) { | |||
| 6282 | case NestedNameSpecifier::Identifier: | |||
| 6283 | if (X->getAsIdentifier() != Y->getAsIdentifier()) | |||
| 6284 | return false; | |||
| 6285 | break; | |||
| 6286 | case NestedNameSpecifier::Namespace: | |||
| 6287 | case NestedNameSpecifier::NamespaceAlias: | |||
| 6288 | // We've already checked that we named the same namespace. | |||
| 6289 | break; | |||
| 6290 | case NestedNameSpecifier::TypeSpec: | |||
| 6291 | case NestedNameSpecifier::TypeSpecWithTemplate: | |||
| 6292 | if (X->getAsType()->getCanonicalTypeInternal() != | |||
| 6293 | Y->getAsType()->getCanonicalTypeInternal()) | |||
| 6294 | return false; | |||
| 6295 | break; | |||
| 6296 | case NestedNameSpecifier::Global: | |||
| 6297 | case NestedNameSpecifier::Super: | |||
| 6298 | return true; | |||
| 6299 | } | |||
| 6300 | ||||
| 6301 | // Recurse into earlier portion of NNS, if any. | |||
| 6302 | auto *PX = X->getPrefix(); | |||
| 6303 | auto *PY = Y->getPrefix(); | |||
| 6304 | if (PX && PY) | |||
| 6305 | return isSameQualifier(PX, PY); | |||
| 6306 | return !PX && !PY; | |||
| 6307 | } | |||
| 6308 | ||||
| 6309 | /// Determine whether the attributes we can overload on are identical for A and | |||
| 6310 | /// B. Will ignore any overloadable attrs represented in the type of A and B. | |||
| 6311 | static bool hasSameOverloadableAttrs(const FunctionDecl *A, | |||
| 6312 | const FunctionDecl *B) { | |||
| 6313 | // Note that pass_object_size attributes are represented in the function's | |||
| 6314 | // ExtParameterInfo, so we don't need to check them here. | |||
| 6315 | ||||
| 6316 | llvm::FoldingSetNodeID Cand1ID, Cand2ID; | |||
| 6317 | auto AEnableIfAttrs = A->specific_attrs<EnableIfAttr>(); | |||
| 6318 | auto BEnableIfAttrs = B->specific_attrs<EnableIfAttr>(); | |||
| 6319 | ||||
| 6320 | for (auto Pair : zip_longest(AEnableIfAttrs, BEnableIfAttrs)) { | |||
| 6321 | Optional<EnableIfAttr *> Cand1A = std::get<0>(Pair); | |||
| 6322 | Optional<EnableIfAttr *> Cand2A = std::get<1>(Pair); | |||
| 6323 | ||||
| 6324 | // Return false if the number of enable_if attributes is different. | |||
| 6325 | if (!Cand1A || !Cand2A) | |||
| 6326 | return false; | |||
| 6327 | ||||
| 6328 | Cand1ID.clear(); | |||
| 6329 | Cand2ID.clear(); | |||
| 6330 | ||||
| 6331 | (*Cand1A)->getCond()->Profile(Cand1ID, A->getASTContext(), true); | |||
| 6332 | (*Cand2A)->getCond()->Profile(Cand2ID, B->getASTContext(), true); | |||
| 6333 | ||||
| 6334 | // Return false if any of the enable_if expressions of A and B are | |||
| 6335 | // different. | |||
| 6336 | if (Cand1ID != Cand2ID) | |||
| 6337 | return false; | |||
| 6338 | } | |||
| 6339 | return true; | |||
| 6340 | } | |||
| 6341 | ||||
| 6342 | bool ASTContext::isSameEntity(const NamedDecl *X, const NamedDecl *Y) { | |||
| 6343 | if (X == Y) | |||
| 6344 | return true; | |||
| 6345 | ||||
| 6346 | if (X->getDeclName() != Y->getDeclName()) | |||
| 6347 | return false; | |||
| 6348 | ||||
| 6349 | // Must be in the same context. | |||
| 6350 | // | |||
| 6351 | // Note that we can't use DeclContext::Equals here, because the DeclContexts | |||
| 6352 | // could be two different declarations of the same function. (We will fix the | |||
| 6353 | // semantic DC to refer to the primary definition after merging.) | |||
| 6354 | if (!declaresSameEntity(cast<Decl>(X->getDeclContext()->getRedeclContext()), | |||
| 6355 | cast<Decl>(Y->getDeclContext()->getRedeclContext()))) | |||
| 6356 | return false; | |||
| 6357 | ||||
| 6358 | // Two typedefs refer to the same entity if they have the same underlying | |||
| 6359 | // type. | |||
| 6360 | if (const auto *TypedefX = dyn_cast<TypedefNameDecl>(X)) | |||
| 6361 | if (const auto *TypedefY = dyn_cast<TypedefNameDecl>(Y)) | |||
| 6362 | return hasSameType(TypedefX->getUnderlyingType(), | |||
| 6363 | TypedefY->getUnderlyingType()); | |||
| 6364 | ||||
| 6365 | // Must have the same kind. | |||
| 6366 | if (X->getKind() != Y->getKind()) | |||
| 6367 | return false; | |||
| 6368 | ||||
| 6369 | // Objective-C classes and protocols with the same name always match. | |||
| 6370 | if (isa<ObjCInterfaceDecl>(X) || isa<ObjCProtocolDecl>(X)) | |||
| 6371 | return true; | |||
| 6372 | ||||
| 6373 | if (isa<ClassTemplateSpecializationDecl>(X)) { | |||
| 6374 | // No need to handle these here: we merge them when adding them to the | |||
| 6375 | // template. | |||
| 6376 | return false; | |||
| 6377 | } | |||
| 6378 | ||||
| 6379 | // Compatible tags match. | |||
| 6380 | if (const auto *TagX = dyn_cast<TagDecl>(X)) { | |||
| 6381 | const auto *TagY = cast<TagDecl>(Y); | |||
| 6382 | return (TagX->getTagKind() == TagY->getTagKind()) || | |||
| 6383 | ((TagX->getTagKind() == TTK_Struct || | |||
| 6384 | TagX->getTagKind() == TTK_Class || | |||
| 6385 | TagX->getTagKind() == TTK_Interface) && | |||
| 6386 | (TagY->getTagKind() == TTK_Struct || | |||
| 6387 | TagY->getTagKind() == TTK_Class || | |||
| 6388 | TagY->getTagKind() == TTK_Interface)); | |||
| 6389 | } | |||
| 6390 | ||||
| 6391 | // Functions with the same type and linkage match. | |||
| 6392 | // FIXME: This needs to cope with merging of prototyped/non-prototyped | |||
| 6393 | // functions, etc. | |||
| 6394 | if (const auto *FuncX = dyn_cast<FunctionDecl>(X)) { | |||
| 6395 | const auto *FuncY = cast<FunctionDecl>(Y); | |||
| 6396 | if (const auto *CtorX = dyn_cast<CXXConstructorDecl>(X)) { | |||
| 6397 | const auto *CtorY = cast<CXXConstructorDecl>(Y); | |||
| 6398 | if (CtorX->getInheritedConstructor() && | |||
| 6399 | !isSameEntity(CtorX->getInheritedConstructor().getConstructor(), | |||
| 6400 | CtorY->getInheritedConstructor().getConstructor())) | |||
| 6401 | return false; | |||
| 6402 | } | |||
| 6403 | ||||
| 6404 | if (FuncX->isMultiVersion() != FuncY->isMultiVersion()) | |||
| 6405 | return false; | |||
| 6406 | ||||
| 6407 | // Multiversioned functions with different feature strings are represented | |||
| 6408 | // as separate declarations. | |||
| 6409 | if (FuncX->isMultiVersion()) { | |||
| 6410 | const auto *TAX = FuncX->getAttr<TargetAttr>(); | |||
| 6411 | const auto *TAY = FuncY->getAttr<TargetAttr>(); | |||
| 6412 | assert(TAX && TAY && "Multiversion Function without target attribute")(static_cast <bool> (TAX && TAY && "Multiversion Function without target attribute" ) ? void (0) : __assert_fail ("TAX && TAY && \"Multiversion Function without target attribute\"" , "clang/lib/AST/ASTContext.cpp", 6412, __extension__ __PRETTY_FUNCTION__ )); | |||
| 6413 | ||||
| 6414 | if (TAX->getFeaturesStr() != TAY->getFeaturesStr()) | |||
| 6415 | return false; | |||
| 6416 | } | |||
| 6417 | ||||
| 6418 | const Expr *XRC = FuncX->getTrailingRequiresClause(); | |||
| 6419 | const Expr *YRC = FuncY->getTrailingRequiresClause(); | |||
| 6420 | if (!XRC != !YRC) | |||
| 6421 | return false; | |||
| 6422 | if (XRC) { | |||
| 6423 | llvm::FoldingSetNodeID XRCID, YRCID; | |||
| 6424 | XRC->Profile(XRCID, *this, /*Canonical=*/true); | |||
| 6425 | YRC->Profile(YRCID, *this, /*Canonical=*/true); | |||
| 6426 | if (XRCID != YRCID) | |||
| 6427 | return false; | |||
| 6428 | } | |||
| 6429 | ||||
| 6430 | auto GetTypeAsWritten = [](const FunctionDecl *FD) { | |||
| 6431 | // Map to the first declaration that we've already merged into this one. | |||
| 6432 | // The TSI of redeclarations might not match (due to calling conventions | |||
| 6433 | // being inherited onto the type but not the TSI), but the TSI type of | |||
| 6434 | // the first declaration of the function should match across modules. | |||
| 6435 | FD = FD->getCanonicalDecl(); | |||
| 6436 | return FD->getTypeSourceInfo() ? FD->getTypeSourceInfo()->getType() | |||
| 6437 | : FD->getType(); | |||
| 6438 | }; | |||
| 6439 | QualType XT = GetTypeAsWritten(FuncX), YT = GetTypeAsWritten(FuncY); | |||
| 6440 | if (!hasSameType(XT, YT)) { | |||
| 6441 | // We can get functions with different types on the redecl chain in C++17 | |||
| 6442 | // if they have differing exception specifications and at least one of | |||
| 6443 | // the excpetion specs is unresolved. | |||
| 6444 | auto *XFPT = XT->getAs<FunctionProtoType>(); | |||
| 6445 | auto *YFPT = YT->getAs<FunctionProtoType>(); | |||
| 6446 | if (getLangOpts().CPlusPlus17 && XFPT && YFPT && | |||
| 6447 | (isUnresolvedExceptionSpec(XFPT->getExceptionSpecType()) || | |||
| 6448 | isUnresolvedExceptionSpec(YFPT->getExceptionSpecType())) && | |||
| 6449 | // FIXME: We could make isSameEntity const after we make | |||
| 6450 | // hasSameFunctionTypeIgnoringExceptionSpec const. | |||
| 6451 | hasSameFunctionTypeIgnoringExceptionSpec(XT, YT)) | |||
| 6452 | return true; | |||
| 6453 | return false; | |||
| 6454 | } | |||
| 6455 | ||||
| 6456 | return FuncX->getLinkageInternal() == FuncY->getLinkageInternal() && | |||
| 6457 | hasSameOverloadableAttrs(FuncX, FuncY); | |||
| 6458 | } | |||
| 6459 | ||||
| 6460 | // Variables with the same type and linkage match. | |||
| 6461 | if (const auto *VarX = dyn_cast<VarDecl>(X)) { | |||
| 6462 | const auto *VarY = cast<VarDecl>(Y); | |||
| 6463 | if (VarX->getLinkageInternal() == VarY->getLinkageInternal()) { | |||
| 6464 | if (hasSameType(VarX->getType(), VarY->getType())) | |||
| 6465 | return true; | |||
| 6466 | ||||
| 6467 | // We can get decls with different types on the redecl chain. Eg. | |||
| 6468 | // template <typename T> struct S { static T Var[]; }; // #1 | |||
| 6469 | // template <typename T> T S<T>::Var[sizeof(T)]; // #2 | |||
| 6470 | // Only? happens when completing an incomplete array type. In this case | |||
| 6471 | // when comparing #1 and #2 we should go through their element type. | |||
| 6472 | const ArrayType *VarXTy = getAsArrayType(VarX->getType()); | |||
| 6473 | const ArrayType *VarYTy = getAsArrayType(VarY->getType()); | |||
| 6474 | if (!VarXTy || !VarYTy) | |||
| 6475 | return false; | |||
| 6476 | if (VarXTy->isIncompleteArrayType() || VarYTy->isIncompleteArrayType()) | |||
| 6477 | return hasSameType(VarXTy->getElementType(), VarYTy->getElementType()); | |||
| 6478 | } | |||
| 6479 | return false; | |||
| 6480 | } | |||
| 6481 | ||||
| 6482 | // Namespaces with the same name and inlinedness match. | |||
| 6483 | if (const auto *NamespaceX = dyn_cast<NamespaceDecl>(X)) { | |||
| 6484 | const auto *NamespaceY = cast<NamespaceDecl>(Y); | |||
| 6485 | return NamespaceX->isInline() == NamespaceY->isInline(); | |||
| 6486 | } | |||
| 6487 | ||||
| 6488 | // Identical template names and kinds match if their template parameter lists | |||
| 6489 | // and patterns match. | |||
| 6490 | if (const auto *TemplateX = dyn_cast<TemplateDecl>(X)) { | |||
| 6491 | const auto *TemplateY = cast<TemplateDecl>(Y); | |||
| 6492 | return isSameEntity(TemplateX->getTemplatedDecl(), | |||
| 6493 | TemplateY->getTemplatedDecl()) && | |||
| 6494 | isSameTemplateParameterList(TemplateX->getTemplateParameters(), | |||
| 6495 | TemplateY->getTemplateParameters()); | |||
| 6496 | } | |||
| 6497 | ||||
| 6498 | // Fields with the same name and the same type match. | |||
| 6499 | if (const auto *FDX = dyn_cast<FieldDecl>(X)) { | |||
| 6500 | const auto *FDY = cast<FieldDecl>(Y); | |||
| 6501 | // FIXME: Also check the bitwidth is odr-equivalent, if any. | |||
| 6502 | return hasSameType(FDX->getType(), FDY->getType()); | |||
| 6503 | } | |||
| 6504 | ||||
| 6505 | // Indirect fields with the same target field match. | |||
| 6506 | if (const auto *IFDX = dyn_cast<IndirectFieldDecl>(X)) { | |||
| 6507 | const auto *IFDY = cast<IndirectFieldDecl>(Y); | |||
| 6508 | return IFDX->getAnonField()->getCanonicalDecl() == | |||
| 6509 | IFDY->getAnonField()->getCanonicalDecl(); | |||
| 6510 | } | |||
| 6511 | ||||
| 6512 | // Enumerators with the same name match. | |||
| 6513 | if (isa<EnumConstantDecl>(X)) | |||
| 6514 | // FIXME: Also check the value is odr-equivalent. | |||
| 6515 | return true; | |||
| 6516 | ||||
| 6517 | // Using shadow declarations with the same target match. | |||
| 6518 | if (const auto *USX = dyn_cast<UsingShadowDecl>(X)) { | |||
| 6519 | const auto *USY = cast<UsingShadowDecl>(Y); | |||
| 6520 | return USX->getTargetDecl() == USY->getTargetDecl(); | |||
| 6521 | } | |||
| 6522 | ||||
| 6523 | // Using declarations with the same qualifier match. (We already know that | |||
| 6524 | // the name matches.) | |||
| 6525 | if (const auto *UX = dyn_cast<UsingDecl>(X)) { | |||
| 6526 | const auto *UY = cast<UsingDecl>(Y); | |||
| 6527 | return isSameQualifier(UX->getQualifier(), UY->getQualifier()) && | |||
| 6528 | UX->hasTypename() == UY->hasTypename() && | |||
| 6529 | UX->isAccessDeclaration() == UY->isAccessDeclaration(); | |||
| 6530 | } | |||
| 6531 | if (const auto *UX = dyn_cast<UnresolvedUsingValueDecl>(X)) { | |||
| 6532 | const auto *UY = cast<UnresolvedUsingValueDecl>(Y); | |||
| 6533 | return isSameQualifier(UX->getQualifier(), UY->getQualifier()) && | |||
| 6534 | UX->isAccessDeclaration() == UY->isAccessDeclaration(); | |||
| 6535 | } | |||
| 6536 | if (const auto *UX = dyn_cast<UnresolvedUsingTypenameDecl>(X)) { | |||
| 6537 | return isSameQualifier( | |||
| 6538 | UX->getQualifier(), | |||
| 6539 | cast<UnresolvedUsingTypenameDecl>(Y)->getQualifier()); | |||
| 6540 | } | |||
| 6541 | ||||
| 6542 | // Using-pack declarations are only created by instantiation, and match if | |||
| 6543 | // they're instantiated from matching UnresolvedUsing...Decls. | |||
| 6544 | if (const auto *UX = dyn_cast<UsingPackDecl>(X)) { | |||
| 6545 | return declaresSameEntity( | |||
| 6546 | UX->getInstantiatedFromUsingDecl(), | |||
| 6547 | cast<UsingPackDecl>(Y)->getInstantiatedFromUsingDecl()); | |||
| 6548 | } | |||
| 6549 | ||||
| 6550 | // Namespace alias definitions with the same target match. | |||
| 6551 | if (const auto *NAX = dyn_cast<NamespaceAliasDecl>(X)) { | |||
| 6552 | const auto *NAY = cast<NamespaceAliasDecl>(Y); | |||
| 6553 | return NAX->getNamespace()->Equals(NAY->getNamespace()); | |||
| 6554 | } | |||
| 6555 | ||||
| 6556 | return false; | |||
| 6557 | } | |||
| 6558 | ||||
| 6559 | TemplateArgument | |||
| 6560 | ASTContext::getCanonicalTemplateArgument(const TemplateArgument &Arg) const { | |||
| 6561 | switch (Arg.getKind()) { | |||
| 6562 | case TemplateArgument::Null: | |||
| 6563 | return Arg; | |||
| 6564 | ||||
| 6565 | case TemplateArgument::Expression: | |||
| 6566 | return Arg; | |||
| 6567 | ||||
| 6568 | case TemplateArgument::Declaration: { | |||
| 6569 | auto *D = cast<ValueDecl>(Arg.getAsDecl()->getCanonicalDecl()); | |||
| 6570 | return TemplateArgument(D, Arg.getParamTypeForDecl()); | |||
| 6571 | } | |||
| 6572 | ||||
| 6573 | case TemplateArgument::NullPtr: | |||
| 6574 | return TemplateArgument(getCanonicalType(Arg.getNullPtrType()), | |||
| 6575 | /*isNullPtr*/true); | |||
| 6576 | ||||
| 6577 | case TemplateArgument::Template: | |||
| 6578 | return TemplateArgument(getCanonicalTemplateName(Arg.getAsTemplate())); | |||
| 6579 | ||||
| 6580 | case TemplateArgument::TemplateExpansion: | |||
| 6581 | return TemplateArgument(getCanonicalTemplateName( | |||
| 6582 | Arg.getAsTemplateOrTemplatePattern()), | |||
| 6583 | Arg.getNumTemplateExpansions()); | |||
| 6584 | ||||
| 6585 | case TemplateArgument::Integral: | |||
| 6586 | return TemplateArgument(Arg, getCanonicalType(Arg.getIntegralType())); | |||
| 6587 | ||||
| 6588 | case TemplateArgument::Type: | |||
| 6589 | return TemplateArgument(getCanonicalType(Arg.getAsType())); | |||
| 6590 | ||||
| 6591 | case TemplateArgument::Pack: { | |||
| 6592 | if (Arg.pack_size() == 0) | |||
| 6593 | return Arg; | |||
| 6594 | ||||
| 6595 | auto *CanonArgs = new (*this) TemplateArgument[Arg.pack_size()]; | |||
| 6596 | unsigned Idx = 0; | |||
| 6597 | for (TemplateArgument::pack_iterator A = Arg.pack_begin(), | |||
| 6598 | AEnd = Arg.pack_end(); | |||
| 6599 | A != AEnd; (void)++A, ++Idx) | |||
| 6600 | CanonArgs[Idx] = getCanonicalTemplateArgument(*A); | |||
| 6601 | ||||
| 6602 | return TemplateArgument(llvm::makeArrayRef(CanonArgs, Arg.pack_size())); | |||
| 6603 | } | |||
| 6604 | } | |||
| 6605 | ||||
| 6606 | // Silence GCC warning | |||
| 6607 | llvm_unreachable("Unhandled template argument kind")::llvm::llvm_unreachable_internal("Unhandled template argument kind" , "clang/lib/AST/ASTContext.cpp", 6607); | |||
| 6608 | } | |||
| 6609 | ||||
| 6610 | NestedNameSpecifier * | |||
| 6611 | ASTContext::getCanonicalNestedNameSpecifier(NestedNameSpecifier *NNS) const { | |||
| 6612 | if (!NNS) | |||
| 6613 | return nullptr; | |||
| 6614 | ||||
| 6615 | switch (NNS->getKind()) { | |||
| 6616 | case NestedNameSpecifier::Identifier: | |||
| 6617 | // Canonicalize the prefix but keep the identifier the same. | |||
| 6618 | return NestedNameSpecifier::Create(*this, | |||
| 6619 | getCanonicalNestedNameSpecifier(NNS->getPrefix()), | |||
| 6620 | NNS->getAsIdentifier()); | |||
| 6621 | ||||
| 6622 | case NestedNameSpecifier::Namespace: | |||
| 6623 | // A namespace is canonical; build a nested-name-specifier with | |||
| 6624 | // this namespace and no prefix. | |||
| 6625 | return NestedNameSpecifier::Create(*this, nullptr, | |||
| 6626 | NNS->getAsNamespace()->getOriginalNamespace()); | |||
| 6627 | ||||
| 6628 | case NestedNameSpecifier::NamespaceAlias: | |||
| 6629 | // A namespace is canonical; build a nested-name-specifier with | |||
| 6630 | // this namespace and no prefix. | |||
| 6631 | return NestedNameSpecifier::Create(*this, nullptr, | |||
| 6632 | NNS->getAsNamespaceAlias()->getNamespace() | |||
| 6633 | ->getOriginalNamespace()); | |||
| 6634 | ||||
| 6635 | // The difference between TypeSpec and TypeSpecWithTemplate is that the | |||
| 6636 | // latter will have the 'template' keyword when printed. | |||
| 6637 | case NestedNameSpecifier::TypeSpec: | |||
| 6638 | case NestedNameSpecifier::TypeSpecWithTemplate: { | |||
| 6639 | const Type *T = getCanonicalType(NNS->getAsType()); | |||
| 6640 | ||||
| 6641 | // If we have some kind of dependent-named type (e.g., "typename T::type"), | |||
| 6642 | // break it apart into its prefix and identifier, then reconsititute those | |||
| 6643 | // as the canonical nested-name-specifier. This is required to canonicalize | |||
| 6644 | // a dependent nested-name-specifier involving typedefs of dependent-name | |||
| 6645 | // types, e.g., | |||
| 6646 | // typedef typename T::type T1; | |||
| 6647 | // typedef typename T1::type T2; | |||
| 6648 | if (const auto *DNT = T->getAs<DependentNameType>()) | |||
| 6649 | return NestedNameSpecifier::Create( | |||
| 6650 | *this, DNT->getQualifier(), | |||
| 6651 | const_cast<IdentifierInfo *>(DNT->getIdentifier())); | |||
| 6652 | if (const auto *DTST = T->getAs<DependentTemplateSpecializationType>()) | |||
| 6653 | return NestedNameSpecifier::Create(*this, DTST->getQualifier(), true, | |||
| 6654 | const_cast<Type *>(T)); | |||
| 6655 | ||||
| 6656 | // TODO: Set 'Template' parameter to true for other template types. | |||
| 6657 | return NestedNameSpecifier::Create(*this, nullptr, false, | |||
| 6658 | const_cast<Type *>(T)); | |||
| 6659 | } | |||
| 6660 | ||||
| 6661 | case NestedNameSpecifier::Global: | |||
| 6662 | case NestedNameSpecifier::Super: | |||
| 6663 | // The global specifier and __super specifer are canonical and unique. | |||
| 6664 | return NNS; | |||
| 6665 | } | |||
| 6666 | ||||
| 6667 | llvm_unreachable("Invalid NestedNameSpecifier::Kind!")::llvm::llvm_unreachable_internal("Invalid NestedNameSpecifier::Kind!" , "clang/lib/AST/ASTContext.cpp", 6667); | |||
| 6668 | } | |||
| 6669 | ||||
| 6670 | const ArrayType *ASTContext::getAsArrayType(QualType T) const { | |||
| 6671 | // Handle the non-qualified case efficiently. | |||
| 6672 | if (!T.hasLocalQualifiers()) { | |||
| 6673 | // Handle the common positive case fast. | |||
| 6674 | if (const auto *AT = dyn_cast<ArrayType>(T)) | |||
| 6675 | return AT; | |||
| 6676 | } | |||
| 6677 | ||||
| 6678 | // Handle the common negative case fast. | |||
| 6679 | if (!isa<ArrayType>(T.getCanonicalType())) | |||
| 6680 | return nullptr; | |||
| 6681 | ||||
| 6682 | // Apply any qualifiers from the array type to the element type. This | |||
| 6683 | // implements C99 6.7.3p8: "If the specification of an array type includes | |||
| 6684 | // any type qualifiers, the element type is so qualified, not the array type." | |||
| 6685 | ||||
| 6686 | // If we get here, we either have type qualifiers on the type, or we have | |||
| 6687 | // sugar such as a typedef in the way. If we have type qualifiers on the type | |||
| 6688 | // we must propagate them down into the element type. | |||
| 6689 | ||||
| 6690 | SplitQualType split = T.getSplitDesugaredType(); | |||
| 6691 | Qualifiers qs = split.Quals; | |||
| 6692 | ||||
| 6693 | // If we have a simple case, just return now. | |||
| 6694 | const auto *ATy = dyn_cast<ArrayType>(split.Ty); | |||
| 6695 | if (!ATy || qs.empty()) | |||
| 6696 | return ATy; | |||
| 6697 | ||||
| 6698 | // Otherwise, we have an array and we have qualifiers on it. Push the | |||
| 6699 | // qualifiers into the array element type and return a new array type. | |||
| 6700 | QualType NewEltTy = getQualifiedType(ATy->getElementType(), qs); | |||
| 6701 | ||||
| 6702 | if (const auto *CAT = dyn_cast<ConstantArrayType>(ATy)) | |||
| 6703 | return cast<ArrayType>(getConstantArrayType(NewEltTy, CAT->getSize(), | |||
| 6704 | CAT->getSizeExpr(), | |||
| 6705 | CAT->getSizeModifier(), | |||
| 6706 | CAT->getIndexTypeCVRQualifiers())); | |||
| 6707 | if (const auto *IAT = dyn_cast<IncompleteArrayType>(ATy)) | |||
| 6708 | return cast<ArrayType>(getIncompleteArrayType(NewEltTy, | |||
| 6709 | IAT->getSizeModifier(), | |||
| 6710 | IAT->getIndexTypeCVRQualifiers())); | |||
| 6711 | ||||
| 6712 | if (const auto *DSAT = dyn_cast<DependentSizedArrayType>(ATy)) | |||
| 6713 | return cast<ArrayType>( | |||
| 6714 | getDependentSizedArrayType(NewEltTy, | |||
| 6715 | DSAT->getSizeExpr(), | |||
| 6716 | DSAT->getSizeModifier(), | |||
| 6717 | DSAT->getIndexTypeCVRQualifiers(), | |||
| 6718 | DSAT->getBracketsRange())); | |||
| 6719 | ||||
| 6720 | const auto *VAT = cast<VariableArrayType>(ATy); | |||
| 6721 | return cast<ArrayType>(getVariableArrayType(NewEltTy, | |||
| 6722 | VAT->getSizeExpr(), | |||
| 6723 | VAT->getSizeModifier(), | |||
| 6724 | VAT->getIndexTypeCVRQualifiers(), | |||
| 6725 | VAT->getBracketsRange())); | |||
| 6726 | } | |||
| 6727 | ||||
| 6728 | QualType ASTContext::getAdjustedParameterType(QualType T) const { | |||
| 6729 | if (T->isArrayType() || T->isFunctionType()) | |||
| 6730 | return getDecayedType(T); | |||
| 6731 | return T; | |||
| 6732 | } | |||
| 6733 | ||||
| 6734 | QualType ASTContext::getSignatureParameterType(QualType T) const { | |||
| 6735 | T = getVariableArrayDecayedType(T); | |||
| 6736 | T = getAdjustedParameterType(T); | |||
| 6737 | return T.getUnqualifiedType(); | |||
| 6738 | } | |||
| 6739 | ||||
| 6740 | QualType ASTContext::getExceptionObjectType(QualType T) const { | |||
| 6741 | // C++ [except.throw]p3: | |||
| 6742 | // A throw-expression initializes a temporary object, called the exception | |||
| 6743 | // object, the type of which is determined by removing any top-level | |||
| 6744 | // cv-qualifiers from the static type of the operand of throw and adjusting | |||
| 6745 | // the type from "array of T" or "function returning T" to "pointer to T" | |||
| 6746 | // or "pointer to function returning T", [...] | |||
| 6747 | T = getVariableArrayDecayedType(T); | |||
| 6748 | if (T->isArrayType() || T->isFunctionType()) | |||
| 6749 | T = getDecayedType(T); | |||
| 6750 | return T.getUnqualifiedType(); | |||
| 6751 | } | |||
| 6752 | ||||
| 6753 | /// getArrayDecayedType - Return the properly qualified result of decaying the | |||
| 6754 | /// specified array type to a pointer. This operation is non-trivial when | |||
| 6755 | /// handling typedefs etc. The canonical type of "T" must be an array type, | |||
| 6756 | /// this returns a pointer to a properly qualified element of the array. | |||
| 6757 | /// | |||
| 6758 | /// See C99 6.7.5.3p7 and C99 6.3.2.1p3. | |||
| 6759 | QualType ASTContext::getArrayDecayedType(QualType Ty) const { | |||
| 6760 | // Get the element type with 'getAsArrayType' so that we don't lose any | |||
| 6761 | // typedefs in the element type of the array. This also handles propagation | |||
| 6762 | // of type qualifiers from the array type into the element type if present | |||
| 6763 | // (C99 6.7.3p8). | |||
| 6764 | const ArrayType *PrettyArrayType = getAsArrayType(Ty); | |||
| 6765 | assert(PrettyArrayType && "Not an array type!")(static_cast <bool> (PrettyArrayType && "Not an array type!" ) ? void (0) : __assert_fail ("PrettyArrayType && \"Not an array type!\"" , "clang/lib/AST/ASTContext.cpp", 6765, __extension__ __PRETTY_FUNCTION__ )); | |||
| 6766 | ||||
| 6767 | QualType PtrTy = getPointerType(PrettyArrayType->getElementType()); | |||
| 6768 | ||||
| 6769 | // int x[restrict 4] -> int *restrict | |||
| 6770 | QualType Result = getQualifiedType(PtrTy, | |||
| 6771 | PrettyArrayType->getIndexTypeQualifiers()); | |||
| 6772 | ||||
| 6773 | // int x[_Nullable] -> int * _Nullable | |||
| 6774 | if (auto Nullability = Ty->getNullability(*this)) { | |||
| 6775 | Result = const_cast<ASTContext *>(this)->getAttributedType( | |||
| 6776 | AttributedType::getNullabilityAttrKind(*Nullability), Result, Result); | |||
| 6777 | } | |||
| 6778 | return Result; | |||
| 6779 | } | |||
| 6780 | ||||
| 6781 | QualType ASTContext::getBaseElementType(const ArrayType *array) const { | |||
| 6782 | return getBaseElementType(array->getElementType()); | |||
| 6783 | } | |||
| 6784 | ||||
| 6785 | QualType ASTContext::getBaseElementType(QualType type) const { | |||
| 6786 | Qualifiers qs; | |||
| 6787 | while (true) { | |||
| 6788 | SplitQualType split = type.getSplitDesugaredType(); | |||
| 6789 | const ArrayType *array = split.Ty->getAsArrayTypeUnsafe(); | |||
| 6790 | if (!array) break; | |||
| 6791 | ||||
| 6792 | type = array->getElementType(); | |||
| 6793 | qs.addConsistentQualifiers(split.Quals); | |||
| 6794 | } | |||
| 6795 | ||||
| 6796 | return getQualifiedType(type, qs); | |||
| 6797 | } | |||
| 6798 | ||||
| 6799 | /// getConstantArrayElementCount - Returns number of constant array elements. | |||
| 6800 | uint64_t | |||
| 6801 | ASTContext::getConstantArrayElementCount(const ConstantArrayType *CA) const { | |||
| 6802 | uint64_t ElementCount = 1; | |||
| 6803 | do { | |||
| 6804 | ElementCount *= CA->getSize().getZExtValue(); | |||
| 6805 | CA = dyn_cast_or_null<ConstantArrayType>( | |||
| 6806 | CA->getElementType()->getAsArrayTypeUnsafe()); | |||
| 6807 | } while (CA); | |||
| 6808 | return ElementCount; | |||
| 6809 | } | |||
| 6810 | ||||
| 6811 | /// getFloatingRank - Return a relative rank for floating point types. | |||
| 6812 | /// This routine will assert if passed a built-in type that isn't a float. | |||
| 6813 | static FloatingRank getFloatingRank(QualType T) { | |||
| 6814 | if (const auto *CT = T->getAs<ComplexType>()) | |||
| 6815 | return getFloatingRank(CT->getElementType()); | |||
| 6816 | ||||
| 6817 | switch (T->castAs<BuiltinType>()->getKind()) { | |||
| 6818 | default: llvm_unreachable("getFloatingRank(): not a floating type")::llvm::llvm_unreachable_internal("getFloatingRank(): not a floating type" , "clang/lib/AST/ASTContext.cpp", 6818); | |||
| 6819 | case BuiltinType::Float16: return Float16Rank; | |||
| 6820 | case BuiltinType::Half: return HalfRank; | |||
| 6821 | case BuiltinType::Float: return FloatRank; | |||
| 6822 | case BuiltinType::Double: return DoubleRank; | |||
| 6823 | case BuiltinType::LongDouble: return LongDoubleRank; | |||
| 6824 | case BuiltinType::Float128: return Float128Rank; | |||
| 6825 | case BuiltinType::BFloat16: return BFloat16Rank; | |||
| 6826 | case BuiltinType::Ibm128: return Ibm128Rank; | |||
| 6827 | } | |||
| 6828 | } | |||
| 6829 | ||||
| 6830 | /// getFloatingTypeOrder - Compare the rank of the two specified floating | |||
| 6831 | /// point types, ignoring the domain of the type (i.e. 'double' == | |||
| 6832 | /// '_Complex double'). If LHS > RHS, return 1. If LHS == RHS, return 0. If | |||
| 6833 | /// LHS < RHS, return -1. | |||
| 6834 | int ASTContext::getFloatingTypeOrder(QualType LHS, QualType RHS) const { | |||
| 6835 | FloatingRank LHSR = getFloatingRank(LHS); | |||
| 6836 | FloatingRank RHSR = getFloatingRank(RHS); | |||
| 6837 | ||||
| 6838 | if (LHSR == RHSR) | |||
| 6839 | return 0; | |||
| 6840 | if (LHSR > RHSR) | |||
| 6841 | return 1; | |||
| 6842 | return -1; | |||
| 6843 | } | |||
| 6844 | ||||
| 6845 | int ASTContext::getFloatingTypeSemanticOrder(QualType LHS, QualType RHS) const { | |||
| 6846 | if (&getFloatTypeSemantics(LHS) == &getFloatTypeSemantics(RHS)) | |||
| 6847 | return 0; | |||
| 6848 | return getFloatingTypeOrder(LHS, RHS); | |||
| 6849 | } | |||
| 6850 | ||||
| 6851 | /// getIntegerRank - Return an integer conversion rank (C99 6.3.1.1p1). This | |||
| 6852 | /// routine will assert if passed a built-in type that isn't an integer or enum, | |||
| 6853 | /// or if it is not canonicalized. | |||
| 6854 | unsigned ASTContext::getIntegerRank(const Type *T) const { | |||
| 6855 | assert(T->isCanonicalUnqualified() && "T should be canonicalized")(static_cast <bool> (T->isCanonicalUnqualified() && "T should be canonicalized") ? void (0) : __assert_fail ("T->isCanonicalUnqualified() && \"T should be canonicalized\"" , "clang/lib/AST/ASTContext.cpp", 6855, __extension__ __PRETTY_FUNCTION__ )); | |||
| 6856 | ||||
| 6857 | // Results in this 'losing' to any type of the same size, but winning if | |||
| 6858 | // larger. | |||
| 6859 | if (const auto *EIT = dyn_cast<BitIntType>(T)) | |||
| 6860 | return 0 + (EIT->getNumBits() << 3); | |||
| 6861 | ||||
| 6862 | switch (cast<BuiltinType>(T)->getKind()) { | |||
| 6863 | default: llvm_unreachable("getIntegerRank(): not a built-in integer")::llvm::llvm_unreachable_internal("getIntegerRank(): not a built-in integer" , "clang/lib/AST/ASTContext.cpp", 6863); | |||
| 6864 | case BuiltinType::Bool: | |||
| 6865 | return 1 + (getIntWidth(BoolTy) << 3); | |||
| 6866 | case BuiltinType::Char_S: | |||
| 6867 | case BuiltinType::Char_U: | |||
| 6868 | case BuiltinType::SChar: | |||
| 6869 | case BuiltinType::UChar: | |||
| 6870 | return 2 + (getIntWidth(CharTy) << 3); | |||
| 6871 | case BuiltinType::Short: | |||
| 6872 | case BuiltinType::UShort: | |||
| 6873 | return 3 + (getIntWidth(ShortTy) << 3); | |||
| 6874 | case BuiltinType::Int: | |||
| 6875 | case BuiltinType::UInt: | |||
| 6876 | return 4 + (getIntWidth(IntTy) << 3); | |||
| 6877 | case BuiltinType::Long: | |||
| 6878 | case BuiltinType::ULong: | |||
| 6879 | return 5 + (getIntWidth(LongTy) << 3); | |||
| 6880 | case BuiltinType::LongLong: | |||
| 6881 | case BuiltinType::ULongLong: | |||
| 6882 | return 6 + (getIntWidth(LongLongTy) << 3); | |||
| 6883 | case BuiltinType::Int128: | |||
| 6884 | case BuiltinType::UInt128: | |||
| 6885 | return 7 + (getIntWidth(Int128Ty) << 3); | |||
| 6886 | } | |||
| 6887 | } | |||
| 6888 | ||||
| 6889 | /// Whether this is a promotable bitfield reference according | |||
| 6890 | /// to C99 6.3.1.1p2, bullet 2 (and GCC extensions). | |||
| 6891 | /// | |||
| 6892 | /// \returns the type this bit-field will promote to, or NULL if no | |||
| 6893 | /// promotion occurs. | |||
| 6894 | QualType ASTContext::isPromotableBitField(Expr *E) const { | |||
| 6895 | if (E->isTypeDependent() || E->isValueDependent()) | |||
| 6896 | return {}; | |||
| 6897 | ||||
| 6898 | // C++ [conv.prom]p5: | |||
| 6899 | // If the bit-field has an enumerated type, it is treated as any other | |||
| 6900 | // value of that type for promotion purposes. | |||
| 6901 | if (getLangOpts().CPlusPlus && E->getType()->isEnumeralType()) | |||
| 6902 | return {}; | |||
| 6903 | ||||
| 6904 | // FIXME: We should not do this unless E->refersToBitField() is true. This | |||
| 6905 | // matters in C where getSourceBitField() will find bit-fields for various | |||
| 6906 | // cases where the source expression is not a bit-field designator. | |||
| 6907 | ||||
| 6908 | FieldDecl *Field = E->getSourceBitField(); // FIXME: conditional bit-fields? | |||
| 6909 | if (!Field) | |||
| 6910 | return {}; | |||
| 6911 | ||||
| 6912 | QualType FT = Field->getType(); | |||
| 6913 | ||||
| 6914 | uint64_t BitWidth = Field->getBitWidthValue(*this); | |||
| 6915 | uint64_t IntSize = getTypeSize(IntTy); | |||
| 6916 | // C++ [conv.prom]p5: | |||
| 6917 | // A prvalue for an integral bit-field can be converted to a prvalue of type | |||
| 6918 | // int if int can represent all the values of the bit-field; otherwise, it | |||
| 6919 | // can be converted to unsigned int if unsigned int can represent all the | |||
| 6920 | // values of the bit-field. If the bit-field is larger yet, no integral | |||
| 6921 | // promotion applies to it. | |||
| 6922 | // C11 6.3.1.1/2: | |||
| 6923 | // [For a bit-field of type _Bool, int, signed int, or unsigned int:] | |||
| 6924 | // If an int can represent all values of the original type (as restricted by | |||
| 6925 | // the width, for a bit-field), the value is converted to an int; otherwise, | |||
| 6926 | // it is converted to an unsigned int. | |||
| 6927 | // | |||
| 6928 | // FIXME: C does not permit promotion of a 'long : 3' bitfield to int. | |||
| 6929 | // We perform that promotion here to match GCC and C++. | |||
| 6930 | // FIXME: C does not permit promotion of an enum bit-field whose rank is | |||
| 6931 | // greater than that of 'int'. We perform that promotion to match GCC. | |||
| 6932 | if (BitWidth < IntSize) | |||
| 6933 | return IntTy; | |||
| 6934 | ||||
| 6935 | if (BitWidth == IntSize) | |||
| 6936 | return FT->isSignedIntegerType() ? IntTy : UnsignedIntTy; | |||
| 6937 | ||||
| 6938 | // Bit-fields wider than int are not subject to promotions, and therefore act | |||
| 6939 | // like the base type. GCC has some weird bugs in this area that we | |||
| 6940 | // deliberately do not follow (GCC follows a pre-standard resolution to | |||
| 6941 | // C's DR315 which treats bit-width as being part of the type, and this leaks | |||
| 6942 | // into their semantics in some cases). | |||
| 6943 | return {}; | |||
| 6944 | } | |||
| 6945 | ||||
| 6946 | /// getPromotedIntegerType - Returns the type that Promotable will | |||
| 6947 | /// promote to: C99 6.3.1.1p2, assuming that Promotable is a promotable | |||
| 6948 | /// integer type. | |||
| 6949 | QualType ASTContext::getPromotedIntegerType(QualType Promotable) const { | |||
| 6950 | assert(!Promotable.isNull())(static_cast <bool> (!Promotable.isNull()) ? void (0) : __assert_fail ("!Promotable.isNull()", "clang/lib/AST/ASTContext.cpp" , 6950, __extension__ __PRETTY_FUNCTION__)); | |||
| 6951 | assert(Promotable->isPromotableIntegerType())(static_cast <bool> (Promotable->isPromotableIntegerType ()) ? void (0) : __assert_fail ("Promotable->isPromotableIntegerType()" , "clang/lib/AST/ASTContext.cpp", 6951, __extension__ __PRETTY_FUNCTION__ )); | |||
| 6952 | if (const auto *ET = Promotable->getAs<EnumType>()) | |||
| 6953 | return ET->getDecl()->getPromotionType(); | |||
| 6954 | ||||
| 6955 | if (const auto *BT = Promotable->getAs<BuiltinType>()) { | |||
| 6956 | // C++ [conv.prom]: A prvalue of type char16_t, char32_t, or wchar_t | |||
| 6957 | // (3.9.1) can be converted to a prvalue of the first of the following | |||
| 6958 | // types that can represent all the values of its underlying type: | |||
| 6959 | // int, unsigned int, long int, unsigned long int, long long int, or | |||
| 6960 | // unsigned long long int [...] | |||
| 6961 | // FIXME: Is there some better way to compute this? | |||
| 6962 | if (BT->getKind() == BuiltinType::WChar_S || | |||
| 6963 | BT->getKind() == BuiltinType::WChar_U || | |||
| 6964 | BT->getKind() == BuiltinType::Char8 || | |||
| 6965 | BT->getKind() == BuiltinType::Char16 || | |||
| 6966 | BT->getKind() == BuiltinType::Char32) { | |||
| 6967 | bool FromIsSigned = BT->getKind() == BuiltinType::WChar_S; | |||
| 6968 | uint64_t FromSize = getTypeSize(BT); | |||
| 6969 | QualType PromoteTypes[] = { IntTy, UnsignedIntTy, LongTy, UnsignedLongTy, | |||
| 6970 | LongLongTy, UnsignedLongLongTy }; | |||
| 6971 | for (size_t Idx = 0; Idx < llvm::array_lengthof(PromoteTypes); ++Idx) { | |||
| 6972 | uint64_t ToSize = getTypeSize(PromoteTypes[Idx]); | |||
| 6973 | if (FromSize < ToSize || | |||
| 6974 | (FromSize == ToSize && | |||
| 6975 | FromIsSigned == PromoteTypes[Idx]->isSignedIntegerType())) | |||
| 6976 | return PromoteTypes[Idx]; | |||
| 6977 | } | |||
| 6978 | llvm_unreachable("char type should fit into long long")::llvm::llvm_unreachable_internal("char type should fit into long long" , "clang/lib/AST/ASTContext.cpp", 6978); | |||
| 6979 | } | |||
| 6980 | } | |||
| 6981 | ||||
| 6982 | // At this point, we should have a signed or unsigned integer type. | |||
| 6983 | if (Promotable->isSignedIntegerType()) | |||
| 6984 | return IntTy; | |||
| 6985 | uint64_t PromotableSize = getIntWidth(Promotable); | |||
| 6986 | uint64_t IntSize = getIntWidth(IntTy); | |||
| 6987 | assert(Promotable->isUnsignedIntegerType() && PromotableSize <= IntSize)(static_cast <bool> (Promotable->isUnsignedIntegerType () && PromotableSize <= IntSize) ? void (0) : __assert_fail ("Promotable->isUnsignedIntegerType() && PromotableSize <= IntSize" , "clang/lib/AST/ASTContext.cpp", 6987, __extension__ __PRETTY_FUNCTION__ )); | |||
| 6988 | return (PromotableSize != IntSize) ? IntTy : UnsignedIntTy; | |||
| 6989 | } | |||
| 6990 | ||||
| 6991 | /// Recurses in pointer/array types until it finds an objc retainable | |||
| 6992 | /// type and returns its ownership. | |||
| 6993 | Qualifiers::ObjCLifetime ASTContext::getInnerObjCOwnership(QualType T) const { | |||
| 6994 | while (!T.isNull()) { | |||
| 6995 | if (T.getObjCLifetime() != Qualifiers::OCL_None) | |||
| 6996 | return T.getObjCLifetime(); | |||
| 6997 | if (T->isArrayType()) | |||
| 6998 | T = getBaseElementType(T); | |||
| 6999 | else if (const auto *PT = T->getAs<PointerType>()) | |||
| 7000 | T = PT->getPointeeType(); | |||
| 7001 | else if (const auto *RT = T->getAs<ReferenceType>()) | |||
| 7002 | T = RT->getPointeeType(); | |||
| 7003 | else | |||
| 7004 | break; | |||
| 7005 | } | |||
| 7006 | ||||
| 7007 | return Qualifiers::OCL_None; | |||
| 7008 | } | |||
| 7009 | ||||
| 7010 | static const Type *getIntegerTypeForEnum(const EnumType *ET) { | |||
| 7011 | // Incomplete enum types are not treated as integer types. | |||
| 7012 | // FIXME: In C++, enum types are never integer types. | |||
| 7013 | if (ET->getDecl()->isComplete() && !ET->getDecl()->isScoped()) | |||
| 7014 | return ET->getDecl()->getIntegerType().getTypePtr(); | |||
| 7015 | return nullptr; | |||
| 7016 | } | |||
| 7017 | ||||
| 7018 | /// getIntegerTypeOrder - Returns the highest ranked integer type: | |||
| 7019 | /// C99 6.3.1.8p1. If LHS > RHS, return 1. If LHS == RHS, return 0. If | |||
| 7020 | /// LHS < RHS, return -1. | |||
| 7021 | int ASTContext::getIntegerTypeOrder(QualType LHS, QualType RHS) const { | |||
| 7022 | const Type *LHSC = getCanonicalType(LHS).getTypePtr(); | |||
| 7023 | const Type *RHSC = getCanonicalType(RHS).getTypePtr(); | |||
| 7024 | ||||
| 7025 | // Unwrap enums to their underlying type. | |||
| 7026 | if (const auto *ET = dyn_cast<EnumType>(LHSC)) | |||
| 7027 | LHSC = getIntegerTypeForEnum(ET); | |||
| 7028 | if (const auto *ET = dyn_cast<EnumType>(RHSC)) | |||
| 7029 | RHSC = getIntegerTypeForEnum(ET); | |||
| 7030 | ||||
| 7031 | if (LHSC == RHSC) return 0; | |||
| 7032 | ||||
| 7033 | bool LHSUnsigned = LHSC->isUnsignedIntegerType(); | |||
| 7034 | bool RHSUnsigned = RHSC->isUnsignedIntegerType(); | |||
| 7035 | ||||
| 7036 | unsigned LHSRank = getIntegerRank(LHSC); | |||
| 7037 | unsigned RHSRank = getIntegerRank(RHSC); | |||
| 7038 | ||||
| 7039 | if (LHSUnsigned == RHSUnsigned) { // Both signed or both unsigned. | |||
| 7040 | if (LHSRank == RHSRank) return 0; | |||
| 7041 | return LHSRank > RHSRank ? 1 : -1; | |||
| 7042 | } | |||
| 7043 | ||||
| 7044 | // Otherwise, the LHS is signed and the RHS is unsigned or visa versa. | |||
| 7045 | if (LHSUnsigned) { | |||
| 7046 | // If the unsigned [LHS] type is larger, return it. | |||
| 7047 | if (LHSRank >= RHSRank) | |||
| 7048 | return 1; | |||
| 7049 | ||||
| 7050 | // If the signed type can represent all values of the unsigned type, it | |||
| 7051 | // wins. Because we are dealing with 2's complement and types that are | |||
| 7052 | // powers of two larger than each other, this is always safe. | |||
| 7053 | return -1; | |||
| 7054 | } | |||
| 7055 | ||||
| 7056 | // If the unsigned [RHS] type is larger, return it. | |||
| 7057 | if (RHSRank >= LHSRank) | |||
| 7058 | return -1; | |||
| 7059 | ||||
| 7060 | // If the signed type can represent all values of the unsigned type, it | |||
| 7061 | // wins. Because we are dealing with 2's complement and types that are | |||
| 7062 | // powers of two larger than each other, this is always safe. | |||
| 7063 | return 1; | |||
| 7064 | } | |||
| 7065 | ||||
| 7066 | TypedefDecl *ASTContext::getCFConstantStringDecl() const { | |||
| 7067 | if (CFConstantStringTypeDecl) | |||
| 7068 | return CFConstantStringTypeDecl; | |||
| 7069 | ||||
| 7070 | assert(!CFConstantStringTagDecl &&(static_cast <bool> (!CFConstantStringTagDecl && "tag and typedef should be initialized together") ? void (0) : __assert_fail ("!CFConstantStringTagDecl && \"tag and typedef should be initialized together\"" , "clang/lib/AST/ASTContext.cpp", 7071, __extension__ __PRETTY_FUNCTION__ )) | |||
| 7071 | "tag and typedef should be initialized together")(static_cast <bool> (!CFConstantStringTagDecl && "tag and typedef should be initialized together") ? void (0) : __assert_fail ("!CFConstantStringTagDecl && \"tag and typedef should be initialized together\"" , "clang/lib/AST/ASTContext.cpp", 7071, __extension__ __PRETTY_FUNCTION__ )); | |||
| 7072 | CFConstantStringTagDecl = buildImplicitRecord("__NSConstantString_tag"); | |||
| 7073 | CFConstantStringTagDecl->startDefinition(); | |||
| 7074 | ||||
| 7075 | struct { | |||
| 7076 | QualType Type; | |||
| 7077 | const char *Name; | |||
| 7078 | } Fields[5]; | |||
| 7079 | unsigned Count = 0; | |||
| 7080 | ||||
| 7081 | /// Objective-C ABI | |||
| 7082 | /// | |||
| 7083 | /// typedef struct __NSConstantString_tag { | |||
| 7084 | /// const int *isa; | |||
| 7085 | /// int flags; | |||
| 7086 | /// const char *str; | |||
| 7087 | /// long length; | |||
| 7088 | /// } __NSConstantString; | |||
| 7089 | /// | |||
| 7090 | /// Swift ABI (4.1, 4.2) | |||
| 7091 | /// | |||
| 7092 | /// typedef struct __NSConstantString_tag { | |||
| 7093 | /// uintptr_t _cfisa; | |||
| 7094 | /// uintptr_t _swift_rc; | |||
| 7095 | /// _Atomic(uint64_t) _cfinfoa; | |||
| 7096 | /// const char *_ptr; | |||
| 7097 | /// uint32_t _length; | |||
| 7098 | /// } __NSConstantString; | |||
| 7099 | /// | |||
| 7100 | /// Swift ABI (5.0) | |||
| 7101 | /// | |||
| 7102 | /// typedef struct __NSConstantString_tag { | |||
| 7103 | /// uintptr_t _cfisa; | |||
| 7104 | /// uintptr_t _swift_rc; | |||
| 7105 | /// _Atomic(uint64_t) _cfinfoa; | |||
| 7106 | /// const char *_ptr; | |||
| 7107 | /// uintptr_t _length; | |||
| 7108 | /// } __NSConstantString; | |||
| 7109 | ||||
| 7110 | const auto CFRuntime = getLangOpts().CFRuntime; | |||
| 7111 | if (static_cast<unsigned>(CFRuntime) < | |||
| 7112 | static_cast<unsigned>(LangOptions::CoreFoundationABI::Swift)) { | |||
| 7113 | Fields[Count++] = { getPointerType(IntTy.withConst()), "isa" }; | |||
| 7114 | Fields[Count++] = { IntTy, "flags" }; | |||
| 7115 | Fields[Count++] = { getPointerType(CharTy.withConst()), "str" }; | |||
| 7116 | Fields[Count++] = { LongTy, "length" }; | |||
| 7117 | } else { | |||
| 7118 | Fields[Count++] = { getUIntPtrType(), "_cfisa" }; | |||
| 7119 | Fields[Count++] = { getUIntPtrType(), "_swift_rc" }; | |||
| 7120 | Fields[Count++] = { getFromTargetType(Target->getUInt64Type()), "_swift_rc" }; | |||
| 7121 | Fields[Count++] = { getPointerType(CharTy.withConst()), "_ptr" }; | |||
| 7122 | if (CFRuntime == LangOptions::CoreFoundationABI::Swift4_1 || | |||
| 7123 | CFRuntime == LangOptions::CoreFoundationABI::Swift4_2) | |||
| 7124 | Fields[Count++] = { IntTy, "_ptr" }; | |||
| 7125 | else | |||
| 7126 | Fields[Count++] = { getUIntPtrType(), "_ptr" }; | |||
| 7127 | } | |||
| 7128 | ||||
| 7129 | // Create fields | |||
| 7130 | for (unsigned i = 0; i < Count; ++i) { | |||
| 7131 | FieldDecl *Field = | |||
| 7132 | FieldDecl::Create(*this, CFConstantStringTagDecl, SourceLocation(), | |||
| 7133 | SourceLocation(), &Idents.get(Fields[i].Name), | |||
| 7134 | Fields[i].Type, /*TInfo=*/nullptr, | |||
| 7135 | /*BitWidth=*/nullptr, /*Mutable=*/false, ICIS_NoInit); | |||
| 7136 | Field->setAccess(AS_public); | |||
| 7137 | CFConstantStringTagDecl->addDecl(Field); | |||
| 7138 | } | |||
| 7139 | ||||
| 7140 | CFConstantStringTagDecl->completeDefinition(); | |||
| 7141 | // This type is designed to be compatible with NSConstantString, but cannot | |||
| 7142 | // use the same name, since NSConstantString is an interface. | |||
| 7143 | auto tagType = getTagDeclType(CFConstantStringTagDecl); | |||
| 7144 | CFConstantStringTypeDecl = | |||
| 7145 | buildImplicitTypedef(tagType, "__NSConstantString"); | |||
| 7146 | ||||
| 7147 | return CFConstantStringTypeDecl; | |||
| 7148 | } | |||
| 7149 | ||||
| 7150 | RecordDecl *ASTContext::getCFConstantStringTagDecl() const { | |||
| 7151 | if (!CFConstantStringTagDecl) | |||
| 7152 | getCFConstantStringDecl(); // Build the tag and the typedef. | |||
| 7153 | return CFConstantStringTagDecl; | |||
| 7154 | } | |||
| 7155 | ||||
| 7156 | // getCFConstantStringType - Return the type used for constant CFStrings. | |||
| 7157 | QualType ASTContext::getCFConstantStringType() const { | |||
| 7158 | return getTypedefType(getCFConstantStringDecl()); | |||
| 7159 | } | |||
| 7160 | ||||
| 7161 | QualType ASTContext::getObjCSuperType() const { | |||
| 7162 | if (ObjCSuperType.isNull()) { | |||
| 7163 | RecordDecl *ObjCSuperTypeDecl = buildImplicitRecord("objc_super"); | |||
| 7164 | getTranslationUnitDecl()->addDecl(ObjCSuperTypeDecl); | |||
| 7165 | ObjCSuperType = getTagDeclType(ObjCSuperTypeDecl); | |||
| 7166 | } | |||
| 7167 | return ObjCSuperType; | |||
| 7168 | } | |||
| 7169 | ||||
| 7170 | void ASTContext::setCFConstantStringType(QualType T) { | |||
| 7171 | const auto *TD = T->castAs<TypedefType>(); | |||
| 7172 | CFConstantStringTypeDecl = cast<TypedefDecl>(TD->getDecl()); | |||
| 7173 | const auto *TagType = | |||
| 7174 | CFConstantStringTypeDecl->getUnderlyingType()->castAs<RecordType>(); | |||
| 7175 | CFConstantStringTagDecl = TagType->getDecl(); | |||
| 7176 | } | |||
| 7177 | ||||
| 7178 | QualType ASTContext::getBlockDescriptorType() const { | |||
| 7179 | if (BlockDescriptorType) | |||
| 7180 | return getTagDeclType(BlockDescriptorType); | |||
| 7181 | ||||
| 7182 | RecordDecl *RD; | |||
| 7183 | // FIXME: Needs the FlagAppleBlock bit. | |||
| 7184 | RD = buildImplicitRecord("__block_descriptor"); | |||
| 7185 | RD->startDefinition(); | |||
| 7186 | ||||
| 7187 | QualType FieldTypes[] = { | |||
| 7188 | UnsignedLongTy, | |||
| 7189 | UnsignedLongTy, | |||
| 7190 | }; | |||
| 7191 | ||||
| 7192 | static const char *const FieldNames[] = { | |||
| 7193 | "reserved", | |||
| 7194 | "Size" | |||
| 7195 | }; | |||
| 7196 | ||||
| 7197 | for (size_t i = 0; i < 2; ++i) { | |||
| 7198 | FieldDecl *Field = FieldDecl::Create( | |||
| 7199 | *this, RD, SourceLocation(), SourceLocation(), | |||
| 7200 | &Idents.get(FieldNames[i]), FieldTypes[i], /*TInfo=*/nullptr, | |||
| 7201 | /*BitWidth=*/nullptr, /*Mutable=*/false, ICIS_NoInit); | |||
| 7202 | Field->setAccess(AS_public); | |||
| 7203 | RD->addDecl(Field); | |||
| 7204 | } | |||
| 7205 | ||||
| 7206 | RD->completeDefinition(); | |||
| 7207 | ||||
| 7208 | BlockDescriptorType = RD; | |||
| 7209 | ||||
| 7210 | return getTagDeclType(BlockDescriptorType); | |||
| 7211 | } | |||
| 7212 | ||||
| 7213 | QualType ASTContext::getBlockDescriptorExtendedType() const { | |||
| 7214 | if (BlockDescriptorExtendedType) | |||
| 7215 | return getTagDeclType(BlockDescriptorExtendedType); | |||
| 7216 | ||||
| 7217 | RecordDecl *RD; | |||
| 7218 | // FIXME: Needs the FlagAppleBlock bit. | |||
| 7219 | RD = buildImplicitRecord("__block_descriptor_withcopydispose"); | |||
| 7220 | RD->startDefinition(); | |||
| 7221 | ||||
| 7222 | QualType FieldTypes[] = { | |||
| 7223 | UnsignedLongTy, | |||
| 7224 | UnsignedLongTy, | |||
| 7225 | getPointerType(VoidPtrTy), | |||
| 7226 | getPointerType(VoidPtrTy) | |||
| 7227 | }; | |||
| 7228 | ||||
| 7229 | static const char *const FieldNames[] = { | |||
| 7230 | "reserved", | |||
| 7231 | "Size", | |||
| 7232 | "CopyFuncPtr", | |||
| 7233 | "DestroyFuncPtr" | |||
| 7234 | }; | |||
| 7235 | ||||
| 7236 | for (size_t i = 0; i < 4; ++i) { | |||
| 7237 | FieldDecl *Field = FieldDecl::Create( | |||
| 7238 | *this, RD, SourceLocation(), SourceLocation(), | |||
| 7239 | &Idents.get(FieldNames[i]), FieldTypes[i], /*TInfo=*/nullptr, | |||
| 7240 | /*BitWidth=*/nullptr, | |||
| 7241 | /*Mutable=*/false, ICIS_NoInit); | |||
| 7242 | Field->setAccess(AS_public); | |||
| 7243 | RD->addDecl(Field); | |||
| 7244 | } | |||
| 7245 | ||||
| 7246 | RD->completeDefinition(); | |||
| 7247 | ||||
| 7248 | BlockDescriptorExtendedType = RD; | |||
| 7249 | return getTagDeclType(BlockDescriptorExtendedType); | |||
| 7250 | } | |||
| 7251 | ||||
| 7252 | OpenCLTypeKind ASTContext::getOpenCLTypeKind(const Type *T) const { | |||
| 7253 | const auto *BT = dyn_cast<BuiltinType>(T); | |||
| 7254 | ||||
| 7255 | if (!BT) { | |||
| 7256 | if (isa<PipeType>(T)) | |||
| 7257 | return OCLTK_Pipe; | |||
| 7258 | ||||
| 7259 | return OCLTK_Default; | |||
| 7260 | } | |||
| 7261 | ||||
| 7262 | switch (BT->getKind()) { | |||
| 7263 | #define IMAGE_TYPE(ImgType, Id, SingletonId, Access, Suffix) \ | |||
| 7264 | case BuiltinType::Id: \ | |||
| 7265 | return OCLTK_Image; | |||
| 7266 | #include "clang/Basic/OpenCLImageTypes.def" | |||
| 7267 | ||||
| 7268 | case BuiltinType::OCLClkEvent: | |||
| 7269 | return OCLTK_ClkEvent; | |||
| 7270 | ||||
| 7271 | case BuiltinType::OCLEvent: | |||
| 7272 | return OCLTK_Event; | |||
| 7273 | ||||
| 7274 | case BuiltinType::OCLQueue: | |||
| 7275 | return OCLTK_Queue; | |||
| 7276 | ||||
| 7277 | case BuiltinType::OCLReserveID: | |||
| 7278 | return OCLTK_ReserveID; | |||
| 7279 | ||||
| 7280 | case BuiltinType::OCLSampler: | |||
| 7281 | return OCLTK_Sampler; | |||
| 7282 | ||||
| 7283 | default: | |||
| 7284 | return OCLTK_Default; | |||
| 7285 | } | |||
| 7286 | } | |||
| 7287 | ||||
| 7288 | LangAS ASTContext::getOpenCLTypeAddrSpace(const Type *T) const { | |||
| 7289 | return Target->getOpenCLTypeAddrSpace(getOpenCLTypeKind(T)); | |||
| 7290 | } | |||
| 7291 | ||||
| 7292 | /// BlockRequiresCopying - Returns true if byref variable "D" of type "Ty" | |||
| 7293 | /// requires copy/dispose. Note that this must match the logic | |||
| 7294 | /// in buildByrefHelpers. | |||
| 7295 | bool ASTContext::BlockRequiresCopying(QualType Ty, | |||
| 7296 | const VarDecl *D) { | |||
| 7297 | if (const CXXRecordDecl *record = Ty->getAsCXXRecordDecl()) { | |||
| 7298 | const Expr *copyExpr = getBlockVarCopyInit(D).getCopyExpr(); | |||
| 7299 | if (!copyExpr && record->hasTrivialDestructor()) return false; | |||
| 7300 | ||||
| 7301 | return true; | |||
| 7302 | } | |||
| 7303 | ||||
| 7304 | // The block needs copy/destroy helpers if Ty is non-trivial to destructively | |||
| 7305 | // move or destroy. | |||
| 7306 | if (Ty.isNonTrivialToPrimitiveDestructiveMove() || Ty.isDestructedType()) | |||
| 7307 | return true; | |||
| 7308 | ||||
| 7309 | if (!Ty->isObjCRetainableType()) return false; | |||
| 7310 | ||||
| 7311 | Qualifiers qs = Ty.getQualifiers(); | |||
| 7312 | ||||
| 7313 | // If we have lifetime, that dominates. | |||
| 7314 | if (Qualifiers::ObjCLifetime lifetime = qs.getObjCLifetime()) { | |||
| 7315 | switch (lifetime) { | |||
| 7316 | case Qualifiers::OCL_None: llvm_unreachable("impossible")::llvm::llvm_unreachable_internal("impossible", "clang/lib/AST/ASTContext.cpp" , 7316); | |||
| 7317 | ||||
| 7318 | // These are just bits as far as the runtime is concerned. | |||
| 7319 | case Qualifiers::OCL_ExplicitNone: | |||
| 7320 | case Qualifiers::OCL_Autoreleasing: | |||
| 7321 | return false; | |||
| 7322 | ||||
| 7323 | // These cases should have been taken care of when checking the type's | |||
| 7324 | // non-triviality. | |||
| 7325 | case Qualifiers::OCL_Weak: | |||
| 7326 | case Qualifiers::OCL_Strong: | |||
| 7327 | llvm_unreachable("impossible")::llvm::llvm_unreachable_internal("impossible", "clang/lib/AST/ASTContext.cpp" , 7327); | |||
| 7328 | } | |||
| 7329 | llvm_unreachable("fell out of lifetime switch!")::llvm::llvm_unreachable_internal("fell out of lifetime switch!" , "clang/lib/AST/ASTContext.cpp", 7329); | |||
| 7330 | } | |||
| 7331 | return (Ty->isBlockPointerType() || isObjCNSObjectType(Ty) || | |||
| 7332 | Ty->isObjCObjectPointerType()); | |||
| 7333 | } | |||
| 7334 | ||||
| 7335 | bool ASTContext::getByrefLifetime(QualType Ty, | |||
| 7336 | Qualifiers::ObjCLifetime &LifeTime, | |||
| 7337 | bool &HasByrefExtendedLayout) const { | |||
| 7338 | if (!getLangOpts().ObjC || | |||
| 7339 | getLangOpts().getGC() != LangOptions::NonGC) | |||
| 7340 | return false; | |||
| 7341 | ||||
| 7342 | HasByrefExtendedLayout = false; | |||
| 7343 | if (Ty->isRecordType()) { | |||
| 7344 | HasByrefExtendedLayout = true; | |||
| 7345 | LifeTime = Qualifiers::OCL_None; | |||
| 7346 | } else if ((LifeTime = Ty.getObjCLifetime())) { | |||
| 7347 | // Honor the ARC qualifiers. | |||
| 7348 | } else if (Ty->isObjCObjectPointerType() || Ty->isBlockPointerType()) { | |||
| 7349 | // The MRR rule. | |||
| 7350 | LifeTime = Qualifiers::OCL_ExplicitNone; | |||
| 7351 | } else { | |||
| 7352 | LifeTime = Qualifiers::OCL_None; | |||
| 7353 | } | |||
| 7354 | return true; | |||
| 7355 | } | |||
| 7356 | ||||
| 7357 | CanQualType ASTContext::getNSUIntegerType() const { | |||
| 7358 | assert(Target && "Expected target to be initialized")(static_cast <bool> (Target && "Expected target to be initialized" ) ? void (0) : __assert_fail ("Target && \"Expected target to be initialized\"" , "clang/lib/AST/ASTContext.cpp", 7358, __extension__ __PRETTY_FUNCTION__ )); | |||
| 7359 | const llvm::Triple &T = Target->getTriple(); | |||
| 7360 | // Windows is LLP64 rather than LP64 | |||
| 7361 | if (T.isOSWindows() && T.isArch64Bit()) | |||
| 7362 | return UnsignedLongLongTy; | |||
| 7363 | return UnsignedLongTy; | |||
| 7364 | } | |||
| 7365 | ||||
| 7366 | CanQualType ASTContext::getNSIntegerType() const { | |||
| 7367 | assert(Target && "Expected target to be initialized")(static_cast <bool> (Target && "Expected target to be initialized" ) ? void (0) : __assert_fail ("Target && \"Expected target to be initialized\"" , "clang/lib/AST/ASTContext.cpp", 7367, __extension__ __PRETTY_FUNCTION__ )); | |||
| 7368 | const llvm::Triple &T = Target->getTriple(); | |||
| 7369 | // Windows is LLP64 rather than LP64 | |||
| 7370 | if (T.isOSWindows() && T.isArch64Bit()) | |||
| 7371 | return LongLongTy; | |||
| 7372 | return LongTy; | |||
| 7373 | } | |||
| 7374 | ||||
| 7375 | TypedefDecl *ASTContext::getObjCInstanceTypeDecl() { | |||
| 7376 | if (!ObjCInstanceTypeDecl) | |||
| 7377 | ObjCInstanceTypeDecl = | |||
| 7378 | buildImplicitTypedef(getObjCIdType(), "instancetype"); | |||
| 7379 | return ObjCInstanceTypeDecl; | |||
| 7380 | } | |||
| 7381 | ||||
| 7382 | // This returns true if a type has been typedefed to BOOL: | |||
| 7383 | // typedef <type> BOOL; | |||
| 7384 | static bool isTypeTypedefedAsBOOL(QualType T) { | |||
| 7385 | if (const auto *TT = dyn_cast<TypedefType>(T)) | |||
| 7386 | if (IdentifierInfo *II = TT->getDecl()->getIdentifier()) | |||
| 7387 | return II->isStr("BOOL"); | |||
| 7388 | ||||
| 7389 | return false; | |||
| 7390 | } | |||
| 7391 | ||||
| 7392 | /// getObjCEncodingTypeSize returns size of type for objective-c encoding | |||
| 7393 | /// purpose. | |||
| 7394 | CharUnits ASTContext::getObjCEncodingTypeSize(QualType type) const { | |||
| 7395 | if (!type->isIncompleteArrayType() && type->isIncompleteType()) | |||
| 7396 | return CharUnits::Zero(); | |||
| 7397 | ||||
| 7398 | CharUnits sz = getTypeSizeInChars(type); | |||
| 7399 | ||||
| 7400 | // Make all integer and enum types at least as large as an int | |||
| 7401 | if (sz.isPositive() && type->isIntegralOrEnumerationType()) | |||
| 7402 | sz = std::max(sz, getTypeSizeInChars(IntTy)); | |||
| 7403 | // Treat arrays as pointers, since that's how they're passed in. | |||
| 7404 | else if (type->isArrayType()) | |||
| 7405 | sz = getTypeSizeInChars(VoidPtrTy); | |||
| 7406 | return sz; | |||
| 7407 | } | |||
| 7408 | ||||
| 7409 | bool ASTContext::isMSStaticDataMemberInlineDefinition(const VarDecl *VD) const { | |||
| 7410 | return getTargetInfo().getCXXABI().isMicrosoft() && | |||
| 7411 | VD->isStaticDataMember() && | |||
| 7412 | VD->getType()->isIntegralOrEnumerationType() && | |||
| 7413 | !VD->getFirstDecl()->isOutOfLine() && VD->getFirstDecl()->hasInit(); | |||
| 7414 | } | |||
| 7415 | ||||
| 7416 | ASTContext::InlineVariableDefinitionKind | |||
| 7417 | ASTContext::getInlineVariableDefinitionKind(const VarDecl *VD) const { | |||
| 7418 | if (!VD->isInline()) | |||
| 7419 | return InlineVariableDefinitionKind::None; | |||
| 7420 | ||||
| 7421 | // In almost all cases, it's a weak definition. | |||
| 7422 | auto *First = VD->getFirstDecl(); | |||
| 7423 | if (First->isInlineSpecified() || !First->isStaticDataMember()) | |||
| 7424 | return InlineVariableDefinitionKind::Weak; | |||
| 7425 | ||||
| 7426 | // If there's a file-context declaration in this translation unit, it's a | |||
| 7427 | // non-discardable definition. | |||
| 7428 | for (auto *D : VD->redecls()) | |||
| 7429 | if (D->getLexicalDeclContext()->isFileContext() && | |||
| 7430 | !D->isInlineSpecified() && (D->isConstexpr() || First->isConstexpr())) | |||
| 7431 | return InlineVariableDefinitionKind::Strong; | |||
| 7432 | ||||
| 7433 | // If we've not seen one yet, we don't know. | |||
| 7434 | return InlineVariableDefinitionKind::WeakUnknown; | |||
| 7435 | } | |||
| 7436 | ||||
| 7437 | static std::string charUnitsToString(const CharUnits &CU) { | |||
| 7438 | return llvm::itostr(CU.getQuantity()); | |||
| 7439 | } | |||
| 7440 | ||||
| 7441 | /// getObjCEncodingForBlock - Return the encoded type for this block | |||
| 7442 | /// declaration. | |||
| 7443 | std::string ASTContext::getObjCEncodingForBlock(const BlockExpr *Expr) const { | |||
| 7444 | std::string S; | |||
| 7445 | ||||
| 7446 | const BlockDecl *Decl = Expr->getBlockDecl(); | |||
| 7447 | QualType BlockTy = | |||
| 7448 | Expr->getType()->castAs<BlockPointerType>()->getPointeeType(); | |||
| 7449 | QualType BlockReturnTy = BlockTy->castAs<FunctionType>()->getReturnType(); | |||
| 7450 | // Encode result type. | |||
| 7451 | if (getLangOpts().EncodeExtendedBlockSig) | |||
| 7452 | getObjCEncodingForMethodParameter(Decl::OBJC_TQ_None, BlockReturnTy, S, | |||
| 7453 | true /*Extended*/); | |||
| 7454 | else | |||
| 7455 | getObjCEncodingForType(BlockReturnTy, S); | |||
| 7456 | // Compute size of all parameters. | |||
| 7457 | // Start with computing size of a pointer in number of bytes. | |||
| 7458 | // FIXME: There might(should) be a better way of doing this computation! | |||
| 7459 | CharUnits PtrSize = getTypeSizeInChars(VoidPtrTy); | |||
| 7460 | CharUnits ParmOffset = PtrSize; | |||
| 7461 | for (auto PI : Decl->parameters()) { | |||
| 7462 | QualType PType = PI->getType(); | |||
| 7463 | CharUnits sz = getObjCEncodingTypeSize(PType); | |||
| 7464 | if (sz.isZero()) | |||
| 7465 | continue; | |||
| 7466 | assert(sz.isPositive() && "BlockExpr - Incomplete param type")(static_cast <bool> (sz.isPositive() && "BlockExpr - Incomplete param type" ) ? void (0) : __assert_fail ("sz.isPositive() && \"BlockExpr - Incomplete param type\"" , "clang/lib/AST/ASTContext.cpp", 7466, __extension__ __PRETTY_FUNCTION__ )); | |||
| 7467 | ParmOffset += sz; | |||
| 7468 | } | |||
| 7469 | // Size of the argument frame | |||
| 7470 | S += charUnitsToString(ParmOffset); | |||
| 7471 | // Block pointer and offset. | |||
| 7472 | S += "@?0"; | |||
| 7473 | ||||
| 7474 | // Argument types. | |||
| 7475 | ParmOffset = PtrSize; | |||
| 7476 | for (auto PVDecl : Decl->parameters()) { | |||
| 7477 | QualType PType = PVDecl->getOriginalType(); | |||
| 7478 | if (const auto *AT = | |||
| 7479 | dyn_cast<ArrayType>(PType->getCanonicalTypeInternal())) { | |||
| 7480 | // Use array's original type only if it has known number of | |||
| 7481 | // elements. | |||
| 7482 | if (!isa<ConstantArrayType>(AT)) | |||
| 7483 | PType = PVDecl->getType(); | |||
| 7484 | } else if (PType->isFunctionType()) | |||
| 7485 | PType = PVDecl->getType(); | |||
| 7486 | if (getLangOpts().EncodeExtendedBlockSig) | |||
| 7487 | getObjCEncodingForMethodParameter(Decl::OBJC_TQ_None, PType, | |||
| 7488 | S, true /*Extended*/); | |||
| 7489 | else | |||
| 7490 | getObjCEncodingForType(PType, S); | |||
| 7491 | S += charUnitsToString(ParmOffset); | |||
| 7492 | ParmOffset += getObjCEncodingTypeSize(PType); | |||
| 7493 | } | |||
| 7494 | ||||
| 7495 | return S; | |||
| 7496 | } | |||
| 7497 | ||||
| 7498 | std::string | |||
| 7499 | ASTContext::getObjCEncodingForFunctionDecl(const FunctionDecl *Decl) const { | |||
| 7500 | std::string S; | |||
| 7501 | // Encode result type. | |||
| 7502 | getObjCEncodingForType(Decl->getReturnType(), S); | |||
| 7503 | CharUnits ParmOffset; | |||
| 7504 | // Compute size of all parameters. | |||
| 7505 | for (auto PI : Decl->parameters()) { | |||
| 7506 | QualType PType = PI->getType(); | |||
| 7507 | CharUnits sz = getObjCEncodingTypeSize(PType); | |||
| 7508 | if (sz.isZero()) | |||
| 7509 | continue; | |||
| 7510 | ||||
| 7511 | assert(sz.isPositive() &&(static_cast <bool> (sz.isPositive() && "getObjCEncodingForFunctionDecl - Incomplete param type" ) ? void (0) : __assert_fail ("sz.isPositive() && \"getObjCEncodingForFunctionDecl - Incomplete param type\"" , "clang/lib/AST/ASTContext.cpp", 7512, __extension__ __PRETTY_FUNCTION__ )) | |||
| 7512 | "getObjCEncodingForFunctionDecl - Incomplete param type")(static_cast <bool> (sz.isPositive() && "getObjCEncodingForFunctionDecl - Incomplete param type" ) ? void (0) : __assert_fail ("sz.isPositive() && \"getObjCEncodingForFunctionDecl - Incomplete param type\"" , "clang/lib/AST/ASTContext.cpp", 7512, __extension__ __PRETTY_FUNCTION__ )); | |||
| 7513 | ParmOffset += sz; | |||
| 7514 | } | |||
| 7515 | S += charUnitsToString(ParmOffset); | |||
| 7516 | ParmOffset = CharUnits::Zero(); | |||
| 7517 | ||||
| 7518 | // Argument types. | |||
| 7519 | for (auto PVDecl : Decl->parameters()) { | |||
| 7520 | QualType PType = PVDecl->getOriginalType(); | |||
| 7521 | if (const auto *AT = | |||
| 7522 | dyn_cast<ArrayType>(PType->getCanonicalTypeInternal())) { | |||
| 7523 | // Use array's original type only if it has known number of | |||
| 7524 | // elements. | |||
| 7525 | if (!isa<ConstantArrayType>(AT)) | |||
| 7526 | PType = PVDecl->getType(); | |||
| 7527 | } else if (PType->isFunctionType()) | |||
| 7528 | PType = PVDecl->getType(); | |||
| 7529 | getObjCEncodingForType(PType, S); | |||
| 7530 | S += charUnitsToString(ParmOffset); | |||
| 7531 | ParmOffset += getObjCEncodingTypeSize(PType); | |||
| 7532 | } | |||
| 7533 | ||||
| 7534 | return S; | |||
| 7535 | } | |||
| 7536 | ||||
| 7537 | /// getObjCEncodingForMethodParameter - Return the encoded type for a single | |||
| 7538 | /// method parameter or return type. If Extended, include class names and | |||
| 7539 | /// block object types. | |||
| 7540 | void ASTContext::getObjCEncodingForMethodParameter(Decl::ObjCDeclQualifier QT, | |||
| 7541 | QualType T, std::string& S, | |||
| 7542 | bool Extended) const { | |||
| 7543 | // Encode type qualifier, 'in', 'inout', etc. for the parameter. | |||
| 7544 | getObjCEncodingForTypeQualifier(QT, S); | |||
| 7545 | // Encode parameter type. | |||
| 7546 | ObjCEncOptions Options = ObjCEncOptions() | |||
| 7547 | .setExpandPointedToStructures() | |||
| 7548 | .setExpandStructures() | |||
| 7549 | .setIsOutermostType(); | |||
| 7550 | if (Extended) | |||
| 7551 | Options.setEncodeBlockParameters().setEncodeClassNames(); | |||
| 7552 | getObjCEncodingForTypeImpl(T, S, Options, /*Field=*/nullptr); | |||
| 7553 | } | |||
| 7554 | ||||
| 7555 | /// getObjCEncodingForMethodDecl - Return the encoded type for this method | |||
| 7556 | /// declaration. | |||
| 7557 | std::string ASTContext::getObjCEncodingForMethodDecl(const ObjCMethodDecl *Decl, | |||
| 7558 | bool Extended) const { | |||
| 7559 | // FIXME: This is not very efficient. | |||
| 7560 | // Encode return type. | |||
| 7561 | std::string S; | |||
| 7562 | getObjCEncodingForMethodParameter(Decl->getObjCDeclQualifier(), | |||
| 7563 | Decl->getReturnType(), S, Extended); | |||
| 7564 | // Compute size of all parameters. | |||
| 7565 | // Start with computing size of a pointer in number of bytes. | |||
| 7566 | // FIXME: There might(should) be a better way of doing this computation! | |||
| 7567 | CharUnits PtrSize = getTypeSizeInChars(VoidPtrTy); | |||
| 7568 | // The first two arguments (self and _cmd) are pointers; account for | |||
| 7569 | // their size. | |||
| 7570 | CharUnits ParmOffset = 2 * PtrSize; | |||
| 7571 | for (ObjCMethodDecl::param_const_iterator PI = Decl->param_begin(), | |||
| 7572 | E = Decl->sel_param_end(); PI != E; ++PI) { | |||
| 7573 | QualType PType = (*PI)->getType(); | |||
| 7574 | CharUnits sz = getObjCEncodingTypeSize(PType); | |||
| 7575 | if (sz.isZero()) | |||
| 7576 | continue; | |||
| 7577 | ||||
| 7578 | assert(sz.isPositive() &&(static_cast <bool> (sz.isPositive() && "getObjCEncodingForMethodDecl - Incomplete param type" ) ? void (0) : __assert_fail ("sz.isPositive() && \"getObjCEncodingForMethodDecl - Incomplete param type\"" , "clang/lib/AST/ASTContext.cpp", 7579, __extension__ __PRETTY_FUNCTION__ )) | |||
| 7579 | "getObjCEncodingForMethodDecl - Incomplete param type")(static_cast <bool> (sz.isPositive() && "getObjCEncodingForMethodDecl - Incomplete param type" ) ? void (0) : __assert_fail ("sz.isPositive() && \"getObjCEncodingForMethodDecl - Incomplete param type\"" , "clang/lib/AST/ASTContext.cpp", 7579, __extension__ __PRETTY_FUNCTION__ )); | |||
| 7580 | ParmOffset += sz; | |||
| 7581 | } | |||
| 7582 | S += charUnitsToString(ParmOffset); | |||
| 7583 | S += "@0:"; | |||
| 7584 | S += charUnitsToString(PtrSize); | |||
| 7585 | ||||
| 7586 | // Argument types. | |||
| 7587 | ParmOffset = 2 * PtrSize; | |||
| 7588 | for (ObjCMethodDecl::param_const_iterator PI = Decl->param_begin(), | |||
| 7589 | E = Decl->sel_param_end(); PI != E; ++PI) { | |||
| 7590 | const ParmVarDecl *PVDecl = *PI; | |||
| 7591 | QualType PType = PVDecl->getOriginalType(); | |||
| 7592 | if (const auto *AT = | |||
| 7593 | dyn_cast<ArrayType>(PType->getCanonicalTypeInternal())) { | |||
| 7594 | // Use array's original type only if it has known number of | |||
| 7595 | // elements. | |||
| 7596 | if (!isa<ConstantArrayType>(AT)) | |||
| 7597 | PType = PVDecl->getType(); | |||
| 7598 | } else if (PType->isFunctionType()) | |||
| 7599 | PType = PVDecl->getType(); | |||
| 7600 | getObjCEncodingForMethodParameter(PVDecl->getObjCDeclQualifier(), | |||
| 7601 | PType, S, Extended); | |||
| 7602 | S += charUnitsToString(ParmOffset); | |||
| 7603 | ParmOffset += getObjCEncodingTypeSize(PType); | |||
| 7604 | } | |||
| 7605 | ||||
| 7606 | return S; | |||
| 7607 | } | |||
| 7608 | ||||
| 7609 | ObjCPropertyImplDecl * | |||
| 7610 | ASTContext::getObjCPropertyImplDeclForPropertyDecl( | |||
| 7611 | const ObjCPropertyDecl *PD, | |||
| 7612 | const Decl *Container) const { | |||
| 7613 | if (!Container) | |||
| 7614 | return nullptr; | |||
| 7615 | if (const auto *CID = dyn_cast<ObjCCategoryImplDecl>(Container)) { | |||
| 7616 | for (auto *PID : CID->property_impls()) | |||
| 7617 | if (PID->getPropertyDecl() == PD) | |||
| 7618 | return PID; | |||
| 7619 | } else { | |||
| 7620 | const auto *OID = cast<ObjCImplementationDecl>(Container); | |||
| 7621 | for (auto *PID : OID->property_impls()) | |||
| 7622 | if (PID->getPropertyDecl() == PD) | |||
| 7623 | return PID; | |||
| 7624 | } | |||
| 7625 | return nullptr; | |||
| 7626 | } | |||
| 7627 | ||||
| 7628 | /// getObjCEncodingForPropertyDecl - Return the encoded type for this | |||
| 7629 | /// property declaration. If non-NULL, Container must be either an | |||
| 7630 | /// ObjCCategoryImplDecl or ObjCImplementationDecl; it should only be | |||
| 7631 | /// NULL when getting encodings for protocol properties. | |||
| 7632 | /// Property attributes are stored as a comma-delimited C string. The simple | |||
| 7633 | /// attributes readonly and bycopy are encoded as single characters. The | |||
| 7634 | /// parametrized attributes, getter=name, setter=name, and ivar=name, are | |||
| 7635 | /// encoded as single characters, followed by an identifier. Property types | |||
| 7636 | /// are also encoded as a parametrized attribute. The characters used to encode | |||
| 7637 | /// these attributes are defined by the following enumeration: | |||
| 7638 | /// @code | |||
| 7639 | /// enum PropertyAttributes { | |||
| 7640 | /// kPropertyReadOnly = 'R', // property is read-only. | |||
| 7641 | /// kPropertyBycopy = 'C', // property is a copy of the value last assigned | |||
| 7642 | /// kPropertyByref = '&', // property is a reference to the value last assigned | |||
| 7643 | /// kPropertyDynamic = 'D', // property is dynamic | |||
| 7644 | /// kPropertyGetter = 'G', // followed by getter selector name | |||
| 7645 | /// kPropertySetter = 'S', // followed by setter selector name | |||
| 7646 | /// kPropertyInstanceVariable = 'V' // followed by instance variable name | |||
| 7647 | /// kPropertyType = 'T' // followed by old-style type encoding. | |||
| 7648 | /// kPropertyWeak = 'W' // 'weak' property | |||
| 7649 | /// kPropertyStrong = 'P' // property GC'able | |||
| 7650 | /// kPropertyNonAtomic = 'N' // property non-atomic | |||
| 7651 | /// }; | |||
| 7652 | /// @endcode | |||
| 7653 | std::string | |||
| 7654 | ASTContext::getObjCEncodingForPropertyDecl(const ObjCPropertyDecl *PD, | |||
| 7655 | const Decl *Container) const { | |||
| 7656 | // Collect information from the property implementation decl(s). | |||
| 7657 | bool Dynamic = false; | |||
| 7658 | ObjCPropertyImplDecl *SynthesizePID = nullptr; | |||
| 7659 | ||||
| 7660 | if (ObjCPropertyImplDecl *PropertyImpDecl = | |||
| 7661 | getObjCPropertyImplDeclForPropertyDecl(PD, Container)) { | |||
| 7662 | if (PropertyImpDecl->getPropertyImplementation() == ObjCPropertyImplDecl::Dynamic) | |||
| 7663 | Dynamic = true; | |||
| 7664 | else | |||
| 7665 | SynthesizePID = PropertyImpDecl; | |||
| 7666 | } | |||
| 7667 | ||||
| 7668 | // FIXME: This is not very efficient. | |||
| 7669 | std::string S = "T"; | |||
| 7670 | ||||
| 7671 | // Encode result type. | |||
| 7672 | // GCC has some special rules regarding encoding of properties which | |||
| 7673 | // closely resembles encoding of ivars. | |||
| 7674 | getObjCEncodingForPropertyType(PD->getType(), S); | |||
| 7675 | ||||
| 7676 | if (PD->isReadOnly()) { | |||
| 7677 | S += ",R"; | |||
| 7678 | if (PD->getPropertyAttributes() & ObjCPropertyAttribute::kind_copy) | |||
| 7679 | S += ",C"; | |||
| 7680 | if (PD->getPropertyAttributes() & ObjCPropertyAttribute::kind_retain) | |||
| 7681 | S += ",&"; | |||
| 7682 | if (PD->getPropertyAttributes() & ObjCPropertyAttribute::kind_weak) | |||
| 7683 | S += ",W"; | |||
| 7684 | } else { | |||
| 7685 | switch (PD->getSetterKind()) { | |||
| 7686 | case ObjCPropertyDecl::Assign: break; | |||
| 7687 | case ObjCPropertyDecl::Copy: S += ",C"; break; | |||
| 7688 | case ObjCPropertyDecl::Retain: S += ",&"; break; | |||
| 7689 | case ObjCPropertyDecl::Weak: S += ",W"; break; | |||
| 7690 | } | |||
| 7691 | } | |||
| 7692 | ||||
| 7693 | // It really isn't clear at all what this means, since properties | |||
| 7694 | // are "dynamic by default". | |||
| 7695 | if (Dynamic) | |||
| 7696 | S += ",D"; | |||
| 7697 | ||||
| 7698 | if (PD->getPropertyAttributes() & ObjCPropertyAttribute::kind_nonatomic) | |||
| 7699 | S += ",N"; | |||
| 7700 | ||||
| 7701 | if (PD->getPropertyAttributes() & ObjCPropertyAttribute::kind_getter) { | |||
| 7702 | S += ",G"; | |||
| 7703 | S += PD->getGetterName().getAsString(); | |||
| 7704 | } | |||
| 7705 | ||||
| 7706 | if (PD->getPropertyAttributes() & ObjCPropertyAttribute::kind_setter) { | |||
| 7707 | S += ",S"; | |||
| 7708 | S += PD->getSetterName().getAsString(); | |||
| 7709 | } | |||
| 7710 | ||||
| 7711 | if (SynthesizePID) { | |||
| 7712 | const ObjCIvarDecl *OID = SynthesizePID->getPropertyIvarDecl(); | |||
| 7713 | S += ",V"; | |||
| 7714 | S += OID->getNameAsString(); | |||
| 7715 | } | |||
| 7716 | ||||
| 7717 | // FIXME: OBJCGC: weak & strong | |||
| 7718 | return S; | |||
| 7719 | } | |||
| 7720 | ||||
| 7721 | /// getLegacyIntegralTypeEncoding - | |||
| 7722 | /// Another legacy compatibility encoding: 32-bit longs are encoded as | |||
| 7723 | /// 'l' or 'L' , but not always. For typedefs, we need to use | |||
| 7724 | /// 'i' or 'I' instead if encoding a struct field, or a pointer! | |||
| 7725 | void ASTContext::getLegacyIntegralTypeEncoding (QualType &PointeeTy) const { | |||
| 7726 | if (isa<TypedefType>(PointeeTy.getTypePtr())) { | |||
| 7727 | if (const auto *BT = PointeeTy->getAs<BuiltinType>()) { | |||
| 7728 | if (BT->getKind() == BuiltinType::ULong && getIntWidth(PointeeTy) == 32) | |||
| 7729 | PointeeTy = UnsignedIntTy; | |||
| 7730 | else | |||
| 7731 | if (BT->getKind() == BuiltinType::Long && getIntWidth(PointeeTy) == 32) | |||
| 7732 | PointeeTy = IntTy; | |||
| 7733 | } | |||
| 7734 | } | |||
| 7735 | } | |||
| 7736 | ||||
| 7737 | void ASTContext::getObjCEncodingForType(QualType T, std::string& S, | |||
| 7738 | const FieldDecl *Field, | |||
| 7739 | QualType *NotEncodedT) const { | |||
| 7740 | // We follow the behavior of gcc, expanding structures which are | |||
| 7741 | // directly pointed to, and expanding embedded structures. Note that | |||
| 7742 | // these rules are sufficient to prevent recursive encoding of the | |||
| 7743 | // same type. | |||
| 7744 | getObjCEncodingForTypeImpl(T, S, | |||
| 7745 | ObjCEncOptions() | |||
| 7746 | .setExpandPointedToStructures() | |||
| 7747 | .setExpandStructures() | |||
| 7748 | .setIsOutermostType(), | |||
| 7749 | Field, NotEncodedT); | |||
| 7750 | } | |||
| 7751 | ||||
| 7752 | void ASTContext::getObjCEncodingForPropertyType(QualType T, | |||
| 7753 | std::string& S) const { | |||
| 7754 | // Encode result type. | |||
| 7755 | // GCC has some special rules regarding encoding of properties which | |||
| 7756 | // closely resembles encoding of ivars. | |||
| 7757 | getObjCEncodingForTypeImpl(T, S, | |||
| 7758 | ObjCEncOptions() | |||
| 7759 | .setExpandPointedToStructures() | |||
| 7760 | .setExpandStructures() | |||
| 7761 | .setIsOutermostType() | |||
| 7762 | .setEncodingProperty(), | |||
| 7763 | /*Field=*/nullptr); | |||
| 7764 | } | |||
| 7765 | ||||
| 7766 | static char getObjCEncodingForPrimitiveType(const ASTContext *C, | |||
| 7767 | const BuiltinType *BT) { | |||
| 7768 | BuiltinType::Kind kind = BT->getKind(); | |||
| 7769 | switch (kind) { | |||
| 7770 | case BuiltinType::Void: return 'v'; | |||
| 7771 | case BuiltinType::Bool: return 'B'; | |||
| 7772 | case BuiltinType::Char8: | |||
| 7773 | case BuiltinType::Char_U: | |||
| 7774 | case BuiltinType::UChar: return 'C'; | |||
| 7775 | case BuiltinType::Char16: | |||
| 7776 | case BuiltinType::UShort: return 'S'; | |||
| 7777 | case BuiltinType::Char32: | |||
| 7778 | case BuiltinType::UInt: return 'I'; | |||
| 7779 | case BuiltinType::ULong: | |||
| 7780 | return C->getTargetInfo().getLongWidth() == 32 ? 'L' : 'Q'; | |||
| 7781 | case BuiltinType::UInt128: return 'T'; | |||
| 7782 | case BuiltinType::ULongLong: return 'Q'; | |||
| 7783 | case BuiltinType::Char_S: | |||
| 7784 | case BuiltinType::SChar: return 'c'; | |||
| 7785 | case BuiltinType::Short: return 's'; | |||
| 7786 | case BuiltinType::WChar_S: | |||
| 7787 | case BuiltinType::WChar_U: | |||
| 7788 | case BuiltinType::Int: return 'i'; | |||
| 7789 | case BuiltinType::Long: | |||
| 7790 | return C->getTargetInfo().getLongWidth() == 32 ? 'l' : 'q'; | |||
| 7791 | case BuiltinType::LongLong: return 'q'; | |||
| 7792 | case BuiltinType::Int128: return 't'; | |||
| 7793 | case BuiltinType::Float: return 'f'; | |||
| 7794 | case BuiltinType::Double: return 'd'; | |||
| 7795 | case BuiltinType::LongDouble: return 'D'; | |||
| 7796 | case BuiltinType::NullPtr: return '*'; // like char* | |||
| 7797 | ||||
| 7798 | case BuiltinType::BFloat16: | |||
| 7799 | case BuiltinType::Float16: | |||
| 7800 | case BuiltinType::Float128: | |||
| 7801 | case BuiltinType::Ibm128: | |||
| 7802 | case BuiltinType::Half: | |||
| 7803 | case BuiltinType::ShortAccum: | |||
| 7804 | case BuiltinType::Accum: | |||
| 7805 | case BuiltinType::LongAccum: | |||
| 7806 | case BuiltinType::UShortAccum: | |||
| 7807 | case BuiltinType::UAccum: | |||
| 7808 | case BuiltinType::ULongAccum: | |||
| 7809 | case BuiltinType::ShortFract: | |||
| 7810 | case BuiltinType::Fract: | |||
| 7811 | case BuiltinType::LongFract: | |||
| 7812 | case BuiltinType::UShortFract: | |||
| 7813 | case BuiltinType::UFract: | |||
| 7814 | case BuiltinType::ULongFract: | |||
| 7815 | case BuiltinType::SatShortAccum: | |||
| 7816 | case BuiltinType::SatAccum: | |||
| 7817 | case BuiltinType::SatLongAccum: | |||
| 7818 | case BuiltinType::SatUShortAccum: | |||
| 7819 | case BuiltinType::SatUAccum: | |||
| 7820 | case BuiltinType::SatULongAccum: | |||
| 7821 | case BuiltinType::SatShortFract: | |||
| 7822 | case BuiltinType::SatFract: | |||
| 7823 | case BuiltinType::SatLongFract: | |||
| 7824 | case BuiltinType::SatUShortFract: | |||
| 7825 | case BuiltinType::SatUFract: | |||
| 7826 | case BuiltinType::SatULongFract: | |||
| 7827 | // FIXME: potentially need @encodes for these! | |||
| 7828 | return ' '; | |||
| 7829 | ||||
| 7830 | #define SVE_TYPE(Name, Id, SingletonId) \ | |||
| 7831 | case BuiltinType::Id: | |||
| 7832 | #include "clang/Basic/AArch64SVEACLETypes.def" | |||
| 7833 | #define RVV_TYPE(Name, Id, SingletonId) case BuiltinType::Id: | |||
| 7834 | #include "clang/Basic/RISCVVTypes.def" | |||
| 7835 | { | |||
| 7836 | DiagnosticsEngine &Diags = C->getDiagnostics(); | |||
| 7837 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, | |||
| 7838 | "cannot yet @encode type %0"); | |||
| 7839 | Diags.Report(DiagID) << BT->getName(C->getPrintingPolicy()); | |||
| 7840 | return ' '; | |||
| 7841 | } | |||
| 7842 | ||||
| 7843 | case BuiltinType::ObjCId: | |||
| 7844 | case BuiltinType::ObjCClass: | |||
| 7845 | case BuiltinType::ObjCSel: | |||
| 7846 | llvm_unreachable("@encoding ObjC primitive type")::llvm::llvm_unreachable_internal("@encoding ObjC primitive type" , "clang/lib/AST/ASTContext.cpp", 7846); | |||
| 7847 | ||||
| 7848 | // OpenCL and placeholder types don't need @encodings. | |||
| 7849 | #define IMAGE_TYPE(ImgType, Id, SingletonId, Access, Suffix) \ | |||
| 7850 | case BuiltinType::Id: | |||
| 7851 | #include "clang/Basic/OpenCLImageTypes.def" | |||
| 7852 | #define EXT_OPAQUE_TYPE(ExtType, Id, Ext) \ | |||
| 7853 | case BuiltinType::Id: | |||
| 7854 | #include "clang/Basic/OpenCLExtensionTypes.def" | |||
| 7855 | case BuiltinType::OCLEvent: | |||
| 7856 | case BuiltinType::OCLClkEvent: | |||
| 7857 | case BuiltinType::OCLQueue: | |||
| 7858 | case BuiltinType::OCLReserveID: | |||
| 7859 | case BuiltinType::OCLSampler: | |||
| 7860 | case BuiltinType::Dependent: | |||
| 7861 | #define PPC_VECTOR_TYPE(Name, Id, Size) \ | |||
| 7862 | case BuiltinType::Id: | |||
| 7863 | #include "clang/Basic/PPCTypes.def" | |||
| 7864 | #define BUILTIN_TYPE(KIND, ID) | |||
| 7865 | #define PLACEHOLDER_TYPE(KIND, ID) \ | |||
| 7866 | case BuiltinType::KIND: | |||
| 7867 | #include "clang/AST/BuiltinTypes.def" | |||
| 7868 | llvm_unreachable("invalid builtin type for @encode")::llvm::llvm_unreachable_internal("invalid builtin type for @encode" , "clang/lib/AST/ASTContext.cpp", 7868); | |||
| 7869 | } | |||
| 7870 | llvm_unreachable("invalid BuiltinType::Kind value")::llvm::llvm_unreachable_internal("invalid BuiltinType::Kind value" , "clang/lib/AST/ASTContext.cpp", 7870); | |||
| 7871 | } | |||
| 7872 | ||||
| 7873 | static char ObjCEncodingForEnumType(const ASTContext *C, const EnumType *ET) { | |||
| 7874 | EnumDecl *Enum = ET->getDecl(); | |||
| 7875 | ||||
| 7876 | // The encoding of an non-fixed enum type is always 'i', regardless of size. | |||
| 7877 | if (!Enum->isFixed()) | |||
| 7878 | return 'i'; | |||
| 7879 | ||||
| 7880 | // The encoding of a fixed enum type matches its fixed underlying type. | |||
| 7881 | const auto *BT = Enum->getIntegerType()->castAs<BuiltinType>(); | |||
| 7882 | return getObjCEncodingForPrimitiveType(C, BT); | |||
| 7883 | } | |||
| 7884 | ||||
| 7885 | static void EncodeBitField(const ASTContext *Ctx, std::string& S, | |||
| 7886 | QualType T, const FieldDecl *FD) { | |||
| 7887 | assert(FD->isBitField() && "not a bitfield - getObjCEncodingForTypeImpl")(static_cast <bool> (FD->isBitField() && "not a bitfield - getObjCEncodingForTypeImpl" ) ? void (0) : __assert_fail ("FD->isBitField() && \"not a bitfield - getObjCEncodingForTypeImpl\"" , "clang/lib/AST/ASTContext.cpp", 7887, __extension__ __PRETTY_FUNCTION__ )); | |||
| 7888 | S += 'b'; | |||
| 7889 | // The NeXT runtime encodes bit fields as b followed by the number of bits. | |||
| 7890 | // The GNU runtime requires more information; bitfields are encoded as b, | |||
| 7891 | // then the offset (in bits) of the first element, then the type of the | |||
| 7892 | // bitfield, then the size in bits. For example, in this structure: | |||
| 7893 | // | |||
| 7894 | // struct | |||
| 7895 | // { | |||
| 7896 | // int integer; | |||
| 7897 | // int flags:2; | |||
| 7898 | // }; | |||
| 7899 | // On a 32-bit system, the encoding for flags would be b2 for the NeXT | |||
| 7900 | // runtime, but b32i2 for the GNU runtime. The reason for this extra | |||
| 7901 | // information is not especially sensible, but we're stuck with it for | |||
| 7902 | // compatibility with GCC, although providing it breaks anything that | |||
| 7903 | // actually uses runtime introspection and wants to work on both runtimes... | |||
| 7904 | if (Ctx->getLangOpts().ObjCRuntime.isGNUFamily()) { | |||
| 7905 | uint64_t Offset; | |||
| 7906 | ||||
| 7907 | if (const auto *IVD = dyn_cast<ObjCIvarDecl>(FD)) { | |||
| 7908 | Offset = Ctx->lookupFieldBitOffset(IVD->getContainingInterface(), nullptr, | |||
| 7909 | IVD); | |||
| 7910 | } else { | |||
| 7911 | const RecordDecl *RD = FD->getParent(); | |||
| 7912 | const ASTRecordLayout &RL = Ctx->getASTRecordLayout(RD); | |||
| 7913 | Offset = RL.getFieldOffset(FD->getFieldIndex()); | |||
| 7914 | } | |||
| 7915 | ||||
| 7916 | S += llvm::utostr(Offset); | |||
| 7917 | ||||
| 7918 | if (const auto *ET = T->getAs<EnumType>()) | |||
| 7919 | S += ObjCEncodingForEnumType(Ctx, ET); | |||
| 7920 | else { | |||
| 7921 | const auto *BT = T->castAs<BuiltinType>(); | |||
| 7922 | S += getObjCEncodingForPrimitiveType(Ctx, BT); | |||
| 7923 | } | |||
| 7924 | } | |||
| 7925 | S += llvm::utostr(FD->getBitWidthValue(*Ctx)); | |||
| 7926 | } | |||
| 7927 | ||||
| 7928 | // Helper function for determining whether the encoded type string would include | |||
| 7929 | // a template specialization type. | |||
| 7930 | static bool hasTemplateSpecializationInEncodedString(const Type *T, | |||
| 7931 | bool VisitBasesAndFields) { | |||
| 7932 | T = T->getBaseElementTypeUnsafe(); | |||
| 7933 | ||||
| 7934 | if (auto *PT = T->getAs<PointerType>()) | |||
| 7935 | return hasTemplateSpecializationInEncodedString( | |||
| 7936 | PT->getPointeeType().getTypePtr(), false); | |||
| 7937 | ||||
| 7938 | auto *CXXRD = T->getAsCXXRecordDecl(); | |||
| 7939 | ||||
| 7940 | if (!CXXRD) | |||
| 7941 | return false; | |||
| 7942 | ||||
| 7943 | if (isa<ClassTemplateSpecializationDecl>(CXXRD)) | |||
| 7944 | return true; | |||
| 7945 | ||||
| 7946 | if (!CXXRD->hasDefinition() || !VisitBasesAndFields) | |||
| 7947 | return false; | |||
| 7948 | ||||
| 7949 | for (auto B : CXXRD->bases()) | |||
| 7950 | if (hasTemplateSpecializationInEncodedString(B.getType().getTypePtr(), | |||
| 7951 | true)) | |||
| 7952 | return true; | |||
| 7953 | ||||
| 7954 | for (auto *FD : CXXRD->fields()) | |||
| 7955 | if (hasTemplateSpecializationInEncodedString(FD->getType().getTypePtr(), | |||
| 7956 | true)) | |||
| 7957 | return true; | |||
| 7958 | ||||
| 7959 | return false; | |||
| 7960 | } | |||
| 7961 | ||||
| 7962 | // FIXME: Use SmallString for accumulating string. | |||
| 7963 | void ASTContext::getObjCEncodingForTypeImpl(QualType T, std::string &S, | |||
| 7964 | const ObjCEncOptions Options, | |||
| 7965 | const FieldDecl *FD, | |||
| 7966 | QualType *NotEncodedT) const { | |||
| 7967 | CanQualType CT = getCanonicalType(T); | |||
| 7968 | switch (CT->getTypeClass()) { | |||
| 7969 | case Type::Builtin: | |||
| 7970 | case Type::Enum: | |||
| 7971 | if (FD && FD->isBitField()) | |||
| 7972 | return EncodeBitField(this, S, T, FD); | |||
| 7973 | if (const auto *BT = dyn_cast<BuiltinType>(CT)) | |||
| 7974 | S += getObjCEncodingForPrimitiveType(this, BT); | |||
| 7975 | else | |||
| 7976 | S += ObjCEncodingForEnumType(this, cast<EnumType>(CT)); | |||
| 7977 | return; | |||
| 7978 | ||||
| 7979 | case Type::Complex: | |||
| 7980 | S += 'j'; | |||
| 7981 | getObjCEncodingForTypeImpl(T->castAs<ComplexType>()->getElementType(), S, | |||
| 7982 | ObjCEncOptions(), | |||
| 7983 | /*Field=*/nullptr); | |||
| 7984 | return; | |||
| 7985 | ||||
| 7986 | case Type::Atomic: | |||
| 7987 | S += 'A'; | |||
| 7988 | getObjCEncodingForTypeImpl(T->castAs<AtomicType>()->getValueType(), S, | |||
| 7989 | ObjCEncOptions(), | |||
| 7990 | /*Field=*/nullptr); | |||
| 7991 | return; | |||
| 7992 | ||||
| 7993 | // encoding for pointer or reference types. | |||
| 7994 | case Type::Pointer: | |||
| 7995 | case Type::LValueReference: | |||
| 7996 | case Type::RValueReference: { | |||
| 7997 | QualType PointeeTy; | |||
| 7998 | if (isa<PointerType>(CT)) { | |||
| 7999 | const auto *PT = T->castAs<PointerType>(); | |||
| 8000 | if (PT->isObjCSelType()) { | |||
| 8001 | S += ':'; | |||
| 8002 | return; | |||
| 8003 | } | |||
| 8004 | PointeeTy = PT->getPointeeType(); | |||
| 8005 | } else { | |||
| 8006 | PointeeTy = T->castAs<ReferenceType>()->getPointeeType(); | |||
| 8007 | } | |||
| 8008 | ||||
| 8009 | bool isReadOnly = false; | |||
| 8010 | // For historical/compatibility reasons, the read-only qualifier of the | |||
| 8011 | // pointee gets emitted _before_ the '^'. The read-only qualifier of | |||
| 8012 | // the pointer itself gets ignored, _unless_ we are looking at a typedef! | |||
| 8013 | // Also, do not emit the 'r' for anything but the outermost type! | |||
| 8014 | if (isa<TypedefType>(T.getTypePtr())) { | |||
| 8015 | if (Options.IsOutermostType() && T.isConstQualified()) { | |||
| 8016 | isReadOnly = true; | |||
| 8017 | S += 'r'; | |||
| 8018 | } | |||
| 8019 | } else if (Options.IsOutermostType()) { | |||
| 8020 | QualType P = PointeeTy; | |||
| 8021 | while (auto PT = P->getAs<PointerType>()) | |||
| 8022 | P = PT->getPointeeType(); | |||
| 8023 | if (P.isConstQualified()) { | |||
| 8024 | isReadOnly = true; | |||
| 8025 | S += 'r'; | |||
| 8026 | } | |||
| 8027 | } | |||
| 8028 | if (isReadOnly) { | |||
| 8029 | // Another legacy compatibility encoding. Some ObjC qualifier and type | |||
| 8030 | // combinations need to be rearranged. | |||
| 8031 | // Rewrite "in const" from "nr" to "rn" | |||
| 8032 | if (StringRef(S).endswith("nr")) | |||
| 8033 | S.replace(S.end()-2, S.end(), "rn"); | |||
| 8034 | } | |||
| 8035 | ||||
| 8036 | if (PointeeTy->isCharType()) { | |||
| 8037 | // char pointer types should be encoded as '*' unless it is a | |||
| 8038 | // type that has been typedef'd to 'BOOL'. | |||
| 8039 | if (!isTypeTypedefedAsBOOL(PointeeTy)) { | |||
| 8040 | S += '*'; | |||
| 8041 | return; | |||
| 8042 | } | |||
| 8043 | } else if (const auto *RTy = PointeeTy->getAs<RecordType>()) { | |||
| 8044 | // GCC binary compat: Need to convert "struct objc_class *" to "#". | |||
| 8045 | if (RTy->getDecl()->getIdentifier() == &Idents.get("objc_class")) { | |||
| 8046 | S += '#'; | |||
| 8047 | return; | |||
| 8048 | } | |||
| 8049 | // GCC binary compat: Need to convert "struct objc_object *" to "@". | |||
| 8050 | if (RTy->getDecl()->getIdentifier() == &Idents.get("objc_object")) { | |||
| 8051 | S += '@'; | |||
| 8052 | return; | |||
| 8053 | } | |||
| 8054 | // If the encoded string for the class includes template names, just emit | |||
| 8055 | // "^v" for pointers to the class. | |||
| 8056 | if (getLangOpts().CPlusPlus && | |||
| 8057 | (!getLangOpts().EncodeCXXClassTemplateSpec && | |||
| 8058 | hasTemplateSpecializationInEncodedString( | |||
| 8059 | RTy, Options.ExpandPointedToStructures()))) { | |||
| 8060 | S += "^v"; | |||
| 8061 | return; | |||
| 8062 | } | |||
| 8063 | // fall through... | |||
| 8064 | } | |||
| 8065 | S += '^'; | |||
| 8066 | getLegacyIntegralTypeEncoding(PointeeTy); | |||
| 8067 | ||||
| 8068 | ObjCEncOptions NewOptions; | |||
| 8069 | if (Options.ExpandPointedToStructures()) | |||
| 8070 | NewOptions.setExpandStructures(); | |||
| 8071 | getObjCEncodingForTypeImpl(PointeeTy, S, NewOptions, | |||
| 8072 | /*Field=*/nullptr, NotEncodedT); | |||
| 8073 | return; | |||
| 8074 | } | |||
| 8075 | ||||
| 8076 | case Type::ConstantArray: | |||
| 8077 | case Type::IncompleteArray: | |||
| 8078 | case Type::VariableArray: { | |||
| 8079 | const auto *AT = cast<ArrayType>(CT); | |||
| 8080 | ||||
| 8081 | if (isa<IncompleteArrayType>(AT) && !Options.IsStructField()) { | |||
| 8082 | // Incomplete arrays are encoded as a pointer to the array element. | |||
| 8083 | S += '^'; | |||
| 8084 | ||||
| 8085 | getObjCEncodingForTypeImpl( | |||
| 8086 | AT->getElementType(), S, | |||
| 8087 | Options.keepingOnly(ObjCEncOptions().setExpandStructures()), FD); | |||
| 8088 | } else { | |||
| 8089 | S += '['; | |||
| 8090 | ||||
| 8091 | if (const auto *CAT = dyn_cast<ConstantArrayType>(AT)) | |||
| 8092 | S += llvm::utostr(CAT->getSize().getZExtValue()); | |||
| 8093 | else { | |||
| 8094 | //Variable length arrays are encoded as a regular array with 0 elements. | |||
| 8095 | assert((isa<VariableArrayType>(AT) || isa<IncompleteArrayType>(AT)) &&(static_cast <bool> ((isa<VariableArrayType>(AT) || isa<IncompleteArrayType>(AT)) && "Unknown array type!" ) ? void (0) : __assert_fail ("(isa<VariableArrayType>(AT) || isa<IncompleteArrayType>(AT)) && \"Unknown array type!\"" , "clang/lib/AST/ASTContext.cpp", 8096, __extension__ __PRETTY_FUNCTION__ )) | |||
| 8096 | "Unknown array type!")(static_cast <bool> ((isa<VariableArrayType>(AT) || isa<IncompleteArrayType>(AT)) && "Unknown array type!" ) ? void (0) : __assert_fail ("(isa<VariableArrayType>(AT) || isa<IncompleteArrayType>(AT)) && \"Unknown array type!\"" , "clang/lib/AST/ASTContext.cpp", 8096, __extension__ __PRETTY_FUNCTION__ )); | |||
| 8097 | S += '0'; | |||
| 8098 | } | |||
| 8099 | ||||
| 8100 | getObjCEncodingForTypeImpl( | |||
| 8101 | AT->getElementType(), S, | |||
| 8102 | Options.keepingOnly(ObjCEncOptions().setExpandStructures()), FD, | |||
| 8103 | NotEncodedT); | |||
| 8104 | S += ']'; | |||
| 8105 | } | |||
| 8106 | return; | |||
| 8107 | } | |||
| 8108 | ||||
| 8109 | case Type::FunctionNoProto: | |||
| 8110 | case Type::FunctionProto: | |||
| 8111 | S += '?'; | |||
| 8112 | return; | |||
| 8113 | ||||
| 8114 | case Type::Record: { | |||
| 8115 | RecordDecl *RDecl = cast<RecordType>(CT)->getDecl(); | |||
| 8116 | S += RDecl->isUnion() ? '(' : '{'; | |||
| 8117 | // Anonymous structures print as '?' | |||
| 8118 | if (const IdentifierInfo *II = RDecl->getIdentifier()) { | |||
| 8119 | S += II->getName(); | |||
| 8120 | if (const auto *Spec = dyn_cast<ClassTemplateSpecializationDecl>(RDecl)) { | |||
| 8121 | const TemplateArgumentList &TemplateArgs = Spec->getTemplateArgs(); | |||
| 8122 | llvm::raw_string_ostream OS(S); | |||
| 8123 | printTemplateArgumentList(OS, TemplateArgs.asArray(), | |||
| 8124 | getPrintingPolicy()); | |||
| 8125 | } | |||
| 8126 | } else { | |||
| 8127 | S += '?'; | |||
| 8128 | } | |||
| 8129 | if (Options.ExpandStructures()) { | |||
| 8130 | S += '='; | |||
| 8131 | if (!RDecl->isUnion()) { | |||
| 8132 | getObjCEncodingForStructureImpl(RDecl, S, FD, true, NotEncodedT); | |||
| 8133 | } else { | |||
| 8134 | for (const auto *Field : RDecl->fields()) { | |||
| 8135 | if (FD) { | |||
| 8136 | S += '"'; | |||
| 8137 | S += Field->getNameAsString(); | |||
| 8138 | S += '"'; | |||
| 8139 | } | |||
| 8140 | ||||
| 8141 | // Special case bit-fields. | |||
| 8142 | if (Field->isBitField()) { | |||
| 8143 | getObjCEncodingForTypeImpl(Field->getType(), S, | |||
| 8144 | ObjCEncOptions().setExpandStructures(), | |||
| 8145 | Field); | |||
| 8146 | } else { | |||
| 8147 | QualType qt = Field->getType(); | |||
| 8148 | getLegacyIntegralTypeEncoding(qt); | |||
| 8149 | getObjCEncodingForTypeImpl( | |||
| 8150 | qt, S, | |||
| 8151 | ObjCEncOptions().setExpandStructures().setIsStructField(), FD, | |||
| 8152 | NotEncodedT); | |||
| 8153 | } | |||
| 8154 | } | |||
| 8155 | } | |||
| 8156 | } | |||
| 8157 | S += RDecl->isUnion() ? ')' : '}'; | |||
| 8158 | return; | |||
| 8159 | } | |||
| 8160 | ||||
| 8161 | case Type::BlockPointer: { | |||
| 8162 | const auto *BT = T->castAs<BlockPointerType>(); | |||
| 8163 | S += "@?"; // Unlike a pointer-to-function, which is "^?". | |||
| 8164 | if (Options.EncodeBlockParameters()) { | |||
| 8165 | const auto *FT = BT->getPointeeType()->castAs<FunctionType>(); | |||
| 8166 | ||||
| 8167 | S += '<'; | |||
| 8168 | // Block return type | |||
| 8169 | getObjCEncodingForTypeImpl(FT->getReturnType(), S, | |||
| 8170 | Options.forComponentType(), FD, NotEncodedT); | |||
| 8171 | // Block self | |||
| 8172 | S += "@?"; | |||
| 8173 | // Block parameters | |||
| 8174 | if (const auto *FPT = dyn_cast<FunctionProtoType>(FT)) { | |||
| 8175 | for (const auto &I : FPT->param_types()) | |||
| 8176 | getObjCEncodingForTypeImpl(I, S, Options.forComponentType(), FD, | |||
| 8177 | NotEncodedT); | |||
| 8178 | } | |||
| 8179 | S += '>'; | |||
| 8180 | } | |||
| 8181 | return; | |||
| 8182 | } | |||
| 8183 | ||||
| 8184 | case Type::ObjCObject: { | |||
| 8185 | // hack to match legacy encoding of *id and *Class | |||
| 8186 | QualType Ty = getObjCObjectPointerType(CT); | |||
| 8187 | if (Ty->isObjCIdType()) { | |||
| 8188 | S += "{objc_object=}"; | |||
| 8189 | return; | |||
| 8190 | } | |||
| 8191 | else if (Ty->isObjCClassType()) { | |||
| 8192 | S += "{objc_class=}"; | |||
| 8193 | return; | |||
| 8194 | } | |||
| 8195 | // TODO: Double check to make sure this intentionally falls through. | |||
| 8196 | LLVM_FALLTHROUGH[[gnu::fallthrough]]; | |||
| 8197 | } | |||
| 8198 | ||||
| 8199 | case Type::ObjCInterface: { | |||
| 8200 | // Ignore protocol qualifiers when mangling at this level. | |||
| 8201 | // @encode(class_name) | |||
| 8202 | ObjCInterfaceDecl *OI = T->castAs<ObjCObjectType>()->getInterface(); | |||
| 8203 | S += '{'; | |||
| 8204 | S += OI->getObjCRuntimeNameAsString(); | |||
| 8205 | if (Options.ExpandStructures()) { | |||
| 8206 | S += '='; | |||
| 8207 | SmallVector<const ObjCIvarDecl*, 32> Ivars; | |||
| 8208 | DeepCollectObjCIvars(OI, true, Ivars); | |||
| 8209 | for (unsigned i = 0, e = Ivars.size(); i != e; ++i) { | |||
| 8210 | const FieldDecl *Field = Ivars[i]; | |||
| 8211 | if (Field->isBitField()) | |||
| 8212 | getObjCEncodingForTypeImpl(Field->getType(), S, | |||
| 8213 | ObjCEncOptions().setExpandStructures(), | |||
| 8214 | Field); | |||
| 8215 | else | |||
| 8216 | getObjCEncodingForTypeImpl(Field->getType(), S, | |||
| 8217 | ObjCEncOptions().setExpandStructures(), FD, | |||
| 8218 | NotEncodedT); | |||
| 8219 | } | |||
| 8220 | } | |||
| 8221 | S += '}'; | |||
| 8222 | return; | |||
| 8223 | } | |||
| 8224 | ||||
| 8225 | case Type::ObjCObjectPointer: { | |||
| 8226 | const auto *OPT = T->castAs<ObjCObjectPointerType>(); | |||
| 8227 | if (OPT->isObjCIdType()) { | |||
| 8228 | S += '@'; | |||
| 8229 | return; | |||
| 8230 | } | |||
| 8231 | ||||
| 8232 | if (OPT->isObjCClassType() || OPT->isObjCQualifiedClassType()) { | |||
| 8233 | // FIXME: Consider if we need to output qualifiers for 'Class<p>'. | |||
| 8234 | // Since this is a binary compatibility issue, need to consult with | |||
| 8235 | // runtime folks. Fortunately, this is a *very* obscure construct. | |||
| 8236 | S += '#'; | |||
| 8237 | return; | |||
| 8238 | } | |||
| 8239 | ||||
| 8240 | if (OPT->isObjCQualifiedIdType()) { | |||
| 8241 | getObjCEncodingForTypeImpl( | |||
| 8242 | getObjCIdType(), S, | |||
| 8243 | Options.keepingOnly(ObjCEncOptions() | |||
| 8244 | .setExpandPointedToStructures() | |||
| 8245 | .setExpandStructures()), | |||
| 8246 | FD); | |||
| 8247 | if (FD || Options.EncodingProperty() || Options.EncodeClassNames()) { | |||
| 8248 | // Note that we do extended encoding of protocol qualifier list | |||
| 8249 | // Only when doing ivar or property encoding. | |||
| 8250 | S += '"'; | |||
| 8251 | for (const auto *I : OPT->quals()) { | |||
| 8252 | S += '<'; | |||
| 8253 | S += I->getObjCRuntimeNameAsString(); | |||
| 8254 | S += '>'; | |||
| 8255 | } | |||
| 8256 | S += '"'; | |||
| 8257 | } | |||
| 8258 | return; | |||
| 8259 | } | |||
| 8260 | ||||
| 8261 | S += '@'; | |||
| 8262 | if (OPT->getInterfaceDecl() && | |||
| 8263 | (FD || Options.EncodingProperty() || Options.EncodeClassNames())) { | |||
| 8264 | S += '"'; | |||
| 8265 | S += OPT->getInterfaceDecl()->getObjCRuntimeNameAsString(); | |||
| 8266 | for (const auto *I : OPT->quals()) { | |||
| 8267 | S += '<'; | |||
| 8268 | S += I->getObjCRuntimeNameAsString(); | |||
| 8269 | S += '>'; | |||
| 8270 | } | |||
| 8271 | S += '"'; | |||
| 8272 | } | |||
| 8273 | return; | |||
| 8274 | } | |||
| 8275 | ||||
| 8276 | // gcc just blithely ignores member pointers. | |||
| 8277 | // FIXME: we should do better than that. 'M' is available. | |||
| 8278 | case Type::MemberPointer: | |||
| 8279 | // This matches gcc's encoding, even though technically it is insufficient. | |||
| 8280 | //FIXME. We should do a better job than gcc. | |||
| 8281 | case Type::Vector: | |||
| 8282 | case Type::ExtVector: | |||
| 8283 | // Until we have a coherent encoding of these three types, issue warning. | |||
| 8284 | if (NotEncodedT) | |||
| 8285 | *NotEncodedT = T; | |||
| 8286 | return; | |||
| 8287 | ||||
| 8288 | case Type::ConstantMatrix: | |||
| 8289 | if (NotEncodedT) | |||
| 8290 | *NotEncodedT = T; | |||
| 8291 | return; | |||
| 8292 | ||||
| 8293 | case Type::BitInt: | |||
| 8294 | if (NotEncodedT) | |||
| 8295 | *NotEncodedT = T; | |||
| 8296 | return; | |||
| 8297 | ||||
| 8298 | // We could see an undeduced auto type here during error recovery. | |||
| 8299 | // Just ignore it. | |||
| 8300 | case Type::Auto: | |||
| 8301 | case Type::DeducedTemplateSpecialization: | |||
| 8302 | return; | |||
| 8303 | ||||
| 8304 | case Type::Pipe: | |||
| 8305 | #define ABSTRACT_TYPE(KIND, BASE) | |||
| 8306 | #define TYPE(KIND, BASE) | |||
| 8307 | #define DEPENDENT_TYPE(KIND, BASE) \ | |||
| 8308 | case Type::KIND: | |||
| 8309 | #define NON_CANONICAL_TYPE(KIND, BASE) \ | |||
| 8310 | case Type::KIND: | |||
| 8311 | #define NON_CANONICAL_UNLESS_DEPENDENT_TYPE(KIND, BASE) \ | |||
| 8312 | case Type::KIND: | |||
| 8313 | #include "clang/AST/TypeNodes.inc" | |||
| 8314 | llvm_unreachable("@encode for dependent type!")::llvm::llvm_unreachable_internal("@encode for dependent type!" , "clang/lib/AST/ASTContext.cpp", 8314); | |||
| 8315 | } | |||
| 8316 | llvm_unreachable("bad type kind!")::llvm::llvm_unreachable_internal("bad type kind!", "clang/lib/AST/ASTContext.cpp" , 8316); | |||
| 8317 | } | |||
| 8318 | ||||
| 8319 | void ASTContext::getObjCEncodingForStructureImpl(RecordDecl *RDecl, | |||
| 8320 | std::string &S, | |||
| 8321 | const FieldDecl *FD, | |||
| 8322 | bool includeVBases, | |||
| 8323 | QualType *NotEncodedT) const { | |||
| 8324 | assert(RDecl && "Expected non-null RecordDecl")(static_cast <bool> (RDecl && "Expected non-null RecordDecl" ) ? void (0) : __assert_fail ("RDecl && \"Expected non-null RecordDecl\"" , "clang/lib/AST/ASTContext.cpp", 8324, __extension__ __PRETTY_FUNCTION__ )); | |||
| 8325 | assert(!RDecl->isUnion() && "Should not be called for unions")(static_cast <bool> (!RDecl->isUnion() && "Should not be called for unions" ) ? void (0) : __assert_fail ("!RDecl->isUnion() && \"Should not be called for unions\"" , "clang/lib/AST/ASTContext.cpp", 8325, __extension__ __PRETTY_FUNCTION__ )); | |||
| 8326 | if (!RDecl->getDefinition() || RDecl->getDefinition()->isInvalidDecl()) | |||
| 8327 | return; | |||
| 8328 | ||||
| 8329 | const auto *CXXRec = dyn_cast<CXXRecordDecl>(RDecl); | |||
| 8330 | std::multimap<uint64_t, NamedDecl *> FieldOrBaseOffsets; | |||
| 8331 | const ASTRecordLayout &layout = getASTRecordLayout(RDecl); | |||
| 8332 | ||||
| 8333 | if (CXXRec) { | |||
| 8334 | for (const auto &BI : CXXRec->bases()) { | |||
| 8335 | if (!BI.isVirtual()) { | |||
| 8336 | CXXRecordDecl *base = BI.getType()->getAsCXXRecordDecl(); | |||
| 8337 | if (base->isEmpty()) | |||
| 8338 | continue; | |||
| 8339 | uint64_t offs = toBits(layout.getBaseClassOffset(base)); | |||
| 8340 | FieldOrBaseOffsets.insert(FieldOrBaseOffsets.upper_bound(offs), | |||
| 8341 | std::make_pair(offs, base)); | |||
| 8342 | } | |||
| 8343 | } | |||
| 8344 | } | |||
| 8345 | ||||
| 8346 | unsigned i = 0; | |||
| 8347 | for (FieldDecl *Field : RDecl->fields()) { | |||
| 8348 | if (!Field->isZeroLengthBitField(*this) && Field->isZeroSize(*this)) | |||
| 8349 | continue; | |||
| 8350 | uint64_t offs = layout.getFieldOffset(i); | |||
| 8351 | FieldOrBaseOffsets.insert(FieldOrBaseOffsets.upper_bound(offs), | |||
| 8352 | std::make_pair(offs, Field)); | |||
| 8353 | ++i; | |||
| 8354 | } | |||
| 8355 | ||||
| 8356 | if (CXXRec && includeVBases) { | |||
| 8357 | for (const auto &BI : CXXRec->vbases()) { | |||
| 8358 | CXXRecordDecl *base = BI.getType()->getAsCXXRecordDecl(); | |||
| 8359 | if (base->isEmpty()) | |||
| 8360 | continue; | |||
| 8361 | uint64_t offs = toBits(layout.getVBaseClassOffset(base)); | |||
| 8362 | if (offs >= uint64_t(toBits(layout.getNonVirtualSize())) && | |||
| 8363 | FieldOrBaseOffsets.find(offs) == FieldOrBaseOffsets.end()) | |||
| 8364 | FieldOrBaseOffsets.insert(FieldOrBaseOffsets.end(), | |||
| 8365 | std::make_pair(offs, base)); | |||
| 8366 | } | |||
| 8367 | } | |||
| 8368 | ||||
| 8369 | CharUnits size; | |||
| 8370 | if (CXXRec) { | |||
| 8371 | size = includeVBases ? layout.getSize() : layout.getNonVirtualSize(); | |||
| 8372 | } else { | |||
| 8373 | size = layout.getSize(); | |||
| 8374 | } | |||
| 8375 | ||||
| 8376 | #ifndef NDEBUG | |||
| 8377 | uint64_t CurOffs = 0; | |||
| 8378 | #endif | |||
| 8379 | std::multimap<uint64_t, NamedDecl *>::iterator | |||
| 8380 | CurLayObj = FieldOrBaseOffsets.begin(); | |||
| 8381 | ||||
| 8382 | if (CXXRec && CXXRec->isDynamicClass() && | |||
| 8383 | (CurLayObj == FieldOrBaseOffsets.end() || CurLayObj->first != 0)) { | |||
| 8384 | if (FD) { | |||
| 8385 | S += "\"_vptr$"; | |||
| 8386 | std::string recname = CXXRec->getNameAsString(); | |||
| 8387 | if (recname.empty()) recname = "?"; | |||
| 8388 | S += recname; | |||
| 8389 | S += '"'; | |||
| 8390 | } | |||
| 8391 | S += "^^?"; | |||
| 8392 | #ifndef NDEBUG | |||
| 8393 | CurOffs += getTypeSize(VoidPtrTy); | |||
| 8394 | #endif | |||
| 8395 | } | |||
| 8396 | ||||
| 8397 | if (!RDecl->hasFlexibleArrayMember()) { | |||
| 8398 | // Mark the end of the structure. | |||
| 8399 | uint64_t offs = toBits(size); | |||
| 8400 | FieldOrBaseOffsets.insert(FieldOrBaseOffsets.upper_bound(offs), | |||
| 8401 | std::make_pair(offs, nullptr)); | |||
| 8402 | } | |||
| 8403 | ||||
| 8404 | for (; CurLayObj != FieldOrBaseOffsets.end(); ++CurLayObj) { | |||
| 8405 | #ifndef NDEBUG | |||
| 8406 | assert(CurOffs <= CurLayObj->first)(static_cast <bool> (CurOffs <= CurLayObj->first) ? void (0) : __assert_fail ("CurOffs <= CurLayObj->first" , "clang/lib/AST/ASTContext.cpp", 8406, __extension__ __PRETTY_FUNCTION__ )); | |||
| 8407 | if (CurOffs < CurLayObj->first) { | |||
| 8408 | uint64_t padding = CurLayObj->first - CurOffs; | |||
| 8409 | // FIXME: There doesn't seem to be a way to indicate in the encoding that | |||
| 8410 | // packing/alignment of members is different that normal, in which case | |||
| 8411 | // the encoding will be out-of-sync with the real layout. | |||
| 8412 | // If the runtime switches to just consider the size of types without | |||
| 8413 | // taking into account alignment, we could make padding explicit in the | |||
| 8414 | // encoding (e.g. using arrays of chars). The encoding strings would be | |||
| 8415 | // longer then though. | |||
| 8416 | CurOffs += padding; | |||
| 8417 | } | |||
| 8418 | #endif | |||
| 8419 | ||||
| 8420 | NamedDecl *dcl = CurLayObj->second; | |||
| 8421 | if (!dcl) | |||
| 8422 | break; // reached end of structure. | |||
| 8423 | ||||
| 8424 | if (auto *base = dyn_cast<CXXRecordDecl>(dcl)) { | |||
| 8425 | // We expand the bases without their virtual bases since those are going | |||
| 8426 | // in the initial structure. Note that this differs from gcc which | |||
| 8427 | // expands virtual bases each time one is encountered in the hierarchy, | |||
| 8428 | // making the encoding type bigger than it really is. | |||
| 8429 | getObjCEncodingForStructureImpl(base, S, FD, /*includeVBases*/false, | |||
| 8430 | NotEncodedT); | |||
| 8431 | assert(!base->isEmpty())(static_cast <bool> (!base->isEmpty()) ? void (0) : __assert_fail ("!base->isEmpty()", "clang/lib/AST/ASTContext.cpp", 8431 , __extension__ __PRETTY_FUNCTION__)); | |||
| 8432 | #ifndef NDEBUG | |||
| 8433 | CurOffs += toBits(getASTRecordLayout(base).getNonVirtualSize()); | |||
| 8434 | #endif | |||
| 8435 | } else { | |||
| 8436 | const auto *field = cast<FieldDecl>(dcl); | |||
| 8437 | if (FD) { | |||
| 8438 | S += '"'; | |||
| 8439 | S += field->getNameAsString(); | |||
| 8440 | S += '"'; | |||
| 8441 | } | |||
| 8442 | ||||
| 8443 | if (field->isBitField()) { | |||
| 8444 | EncodeBitField(this, S, field->getType(), field); | |||
| 8445 | #ifndef NDEBUG | |||
| 8446 | CurOffs += field->getBitWidthValue(*this); | |||
| 8447 | #endif | |||
| 8448 | } else { | |||
| 8449 | QualType qt = field->getType(); | |||
| 8450 | getLegacyIntegralTypeEncoding(qt); | |||
| 8451 | getObjCEncodingForTypeImpl( | |||
| 8452 | qt, S, ObjCEncOptions().setExpandStructures().setIsStructField(), | |||
| 8453 | FD, NotEncodedT); | |||
| 8454 | #ifndef NDEBUG | |||
| 8455 | CurOffs += getTypeSize(field->getType()); | |||
| 8456 | #endif | |||
| 8457 | } | |||
| 8458 | } | |||
| 8459 | } | |||
| 8460 | } | |||
| 8461 | ||||
| 8462 | void ASTContext::getObjCEncodingForTypeQualifier(Decl::ObjCDeclQualifier QT, | |||
| 8463 | std::string& S) const { | |||
| 8464 | if (QT & Decl::OBJC_TQ_In) | |||
| 8465 | S += 'n'; | |||
| 8466 | if (QT & Decl::OBJC_TQ_Inout) | |||
| 8467 | S += 'N'; | |||
| 8468 | if (QT & Decl::OBJC_TQ_Out) | |||
| 8469 | S += 'o'; | |||
| 8470 | if (QT & Decl::OBJC_TQ_Bycopy) | |||
| 8471 | S += 'O'; | |||
| 8472 | if (QT & Decl::OBJC_TQ_Byref) | |||
| 8473 | S += 'R'; | |||
| 8474 | if (QT & Decl::OBJC_TQ_Oneway) | |||
| 8475 | S += 'V'; | |||
| 8476 | } | |||
| 8477 | ||||
| 8478 | TypedefDecl *ASTContext::getObjCIdDecl() const { | |||
| 8479 | if (!ObjCIdDecl) { | |||
| 8480 | QualType T = getObjCObjectType(ObjCBuiltinIdTy, {}, {}); | |||
| 8481 | T = getObjCObjectPointerType(T); | |||
| 8482 | ObjCIdDecl = buildImplicitTypedef(T, "id"); | |||
| 8483 | } | |||
| 8484 | return ObjCIdDecl; | |||
| 8485 | } | |||
| 8486 | ||||
| 8487 | TypedefDecl *ASTContext::getObjCSelDecl() const { | |||
| 8488 | if (!ObjCSelDecl) { | |||
| 8489 | QualType T = getPointerType(ObjCBuiltinSelTy); | |||
| 8490 | ObjCSelDecl = buildImplicitTypedef(T, "SEL"); | |||
| 8491 | } | |||
| 8492 | return ObjCSelDecl; | |||
| 8493 | } | |||
| 8494 | ||||
| 8495 | TypedefDecl *ASTContext::getObjCClassDecl() const { | |||
| 8496 | if (!ObjCClassDecl) { | |||
| 8497 | QualType T = getObjCObjectType(ObjCBuiltinClassTy, {}, {}); | |||
| 8498 | T = getObjCObjectPointerType(T); | |||
| 8499 | ObjCClassDecl = buildImplicitTypedef(T, "Class"); | |||
| 8500 | } | |||
| 8501 | return ObjCClassDecl; | |||
| 8502 | } | |||
| 8503 | ||||
| 8504 | ObjCInterfaceDecl *ASTContext::getObjCProtocolDecl() const { | |||
| 8505 | if (!ObjCProtocolClassDecl) { | |||
| 8506 | ObjCProtocolClassDecl | |||
| 8507 | = ObjCInterfaceDecl::Create(*this, getTranslationUnitDecl(), | |||
| 8508 | SourceLocation(), | |||
| 8509 | &Idents.get("Protocol"), | |||
| 8510 | /*typeParamList=*/nullptr, | |||
| 8511 | /*PrevDecl=*/nullptr, | |||
| 8512 | SourceLocation(), true); | |||
| 8513 | } | |||
| 8514 | ||||
| 8515 | return ObjCProtocolClassDecl; | |||
| 8516 | } | |||
| 8517 | ||||
| 8518 | //===----------------------------------------------------------------------===// | |||
| 8519 | // __builtin_va_list Construction Functions | |||
| 8520 | //===----------------------------------------------------------------------===// | |||
| 8521 | ||||
| 8522 | static TypedefDecl *CreateCharPtrNamedVaListDecl(const ASTContext *Context, | |||
| 8523 | StringRef Name) { | |||
| 8524 | // typedef char* __builtin[_ms]_va_list; | |||
| 8525 | QualType T = Context->getPointerType(Context->CharTy); | |||
| 8526 | return Context->buildImplicitTypedef(T, Name); | |||
| 8527 | } | |||
| 8528 | ||||
| 8529 | static TypedefDecl *CreateMSVaListDecl(const ASTContext *Context) { | |||
| 8530 | return CreateCharPtrNamedVaListDecl(Context, "__builtin_ms_va_list"); | |||
| 8531 | } | |||
| 8532 | ||||
| 8533 | static TypedefDecl *CreateCharPtrBuiltinVaListDecl(const ASTContext *Context) { | |||
| 8534 | return CreateCharPtrNamedVaListDecl(Context, "__builtin_va_list"); | |||
| 8535 | } | |||
| 8536 | ||||
| 8537 | static TypedefDecl *CreateVoidPtrBuiltinVaListDecl(const ASTContext *Context) { | |||
| 8538 | // typedef void* __builtin_va_list; | |||
| 8539 | QualType T = Context->getPointerType(Context->VoidTy); | |||
| 8540 | return Context->buildImplicitTypedef(T, "__builtin_va_list"); | |||
| 8541 | } | |||
| 8542 | ||||
| 8543 | static TypedefDecl * | |||
| 8544 | CreateAArch64ABIBuiltinVaListDecl(const ASTContext *Context) { | |||
| 8545 | // struct __va_list | |||
| 8546 | RecordDecl *VaListTagDecl = Context->buildImplicitRecord("__va_list"); | |||
| 8547 | if (Context->getLangOpts().CPlusPlus) { | |||
| 8548 | // namespace std { struct __va_list { | |||
| 8549 | auto *NS = NamespaceDecl::Create( | |||
| 8550 | const_cast<ASTContext &>(*Context), Context->getTranslationUnitDecl(), | |||
| 8551 | /*Inline*/ false, SourceLocation(), SourceLocation(), | |||
| 8552 | &Context->Idents.get("std"), | |||
| 8553 | /*PrevDecl*/ nullptr); | |||
| 8554 | NS->setImplicit(); | |||
| 8555 | VaListTagDecl->setDeclContext(NS); | |||
| 8556 | } | |||
| 8557 | ||||
| 8558 | VaListTagDecl->startDefinition(); | |||
| 8559 | ||||
| 8560 | const size_t NumFields = 5; | |||
| 8561 | QualType FieldTypes[NumFields]; | |||
| 8562 | const char *FieldNames[NumFields]; | |||
| 8563 | ||||
| 8564 | // void *__stack; | |||
| 8565 | FieldTypes[0] = Context->getPointerType(Context->VoidTy); | |||
| 8566 | FieldNames[0] = "__stack"; | |||
| 8567 | ||||
| 8568 | // void *__gr_top; | |||
| 8569 | FieldTypes[1] = Context->getPointerType(Context->VoidTy); | |||
| 8570 | FieldNames[1] = "__gr_top"; | |||
| 8571 | ||||
| 8572 | // void *__vr_top; | |||
| 8573 | FieldTypes[2] = Context->getPointerType(Context->VoidTy); | |||
| 8574 | FieldNames[2] = "__vr_top"; | |||
| 8575 | ||||
| 8576 | // int __gr_offs; | |||
| 8577 | FieldTypes[3] = Context->IntTy; | |||
| 8578 | FieldNames[3] = "__gr_offs"; | |||
| 8579 | ||||
| 8580 | // int __vr_offs; | |||
| 8581 | FieldTypes[4] = Context->IntTy; | |||
| 8582 | FieldNames[4] = "__vr_offs"; | |||
| 8583 | ||||
| 8584 | // Create fields | |||
| 8585 | for (unsigned i = 0; i < NumFields; ++i) { | |||
| 8586 | FieldDecl *Field = FieldDecl::Create(const_cast<ASTContext &>(*Context), | |||
| 8587 | VaListTagDecl, | |||
| 8588 | SourceLocation(), | |||
| 8589 | SourceLocation(), | |||
| 8590 | &Context->Idents.get(FieldNames[i]), | |||
| 8591 | FieldTypes[i], /*TInfo=*/nullptr, | |||
| 8592 | /*BitWidth=*/nullptr, | |||
| 8593 | /*Mutable=*/false, | |||
| 8594 | ICIS_NoInit); | |||
| 8595 | Field->setAccess(AS_public); | |||
| 8596 | VaListTagDecl->addDecl(Field); | |||
| 8597 | } | |||
| 8598 | VaListTagDecl->completeDefinition(); | |||
| 8599 | Context->VaListTagDecl = VaListTagDecl; | |||
| 8600 | QualType VaListTagType = Context->getRecordType(VaListTagDecl); | |||
| 8601 | ||||
| 8602 | // } __builtin_va_list; | |||
| 8603 | return Context->buildImplicitTypedef(VaListTagType, "__builtin_va_list"); | |||
| 8604 | } | |||
| 8605 | ||||
| 8606 | static TypedefDecl *CreatePowerABIBuiltinVaListDecl(const ASTContext *Context) { | |||
| 8607 | // typedef struct __va_list_tag { | |||
| 8608 | RecordDecl *VaListTagDecl; | |||
| 8609 | ||||
| 8610 | VaListTagDecl = Context->buildImplicitRecord("__va_list_tag"); | |||
| 8611 | VaListTagDecl->startDefinition(); | |||
| 8612 | ||||
| 8613 | const size_t NumFields = 5; | |||
| 8614 | QualType FieldTypes[NumFields]; | |||
| 8615 | const char *FieldNames[NumFields]; | |||
| 8616 | ||||
| 8617 | // unsigned char gpr; | |||
| 8618 | FieldTypes[0] = Context->UnsignedCharTy; | |||
| 8619 | FieldNames[0] = "gpr"; | |||
| 8620 | ||||
| 8621 | // unsigned char fpr; | |||
| 8622 | FieldTypes[1] = Context->UnsignedCharTy; | |||
| 8623 | FieldNames[1] = "fpr"; | |||
| 8624 | ||||
| 8625 | // unsigned short reserved; | |||
| 8626 | FieldTypes[2] = Context->UnsignedShortTy; | |||
| 8627 | FieldNames[2] = "reserved"; | |||
| 8628 | ||||
| 8629 | // void* overflow_arg_area; | |||
| 8630 | FieldTypes[3] = Context->getPointerType(Context->VoidTy); | |||
| 8631 | FieldNames[3] = "overflow_arg_area"; | |||
| 8632 | ||||
| 8633 | // void* reg_save_area; | |||
| 8634 | FieldTypes[4] = Context->getPointerType(Context->VoidTy); | |||
| 8635 | FieldNames[4] = "reg_save_area"; | |||
| 8636 | ||||
| 8637 | // Create fields | |||
| 8638 | for (unsigned i = 0; i < NumFields; ++i) { | |||
| 8639 | FieldDecl *Field = FieldDecl::Create(*Context, VaListTagDecl, | |||
| 8640 | SourceLocation(), | |||
| 8641 | SourceLocation(), | |||
| 8642 | &Context->Idents.get(FieldNames[i]), | |||
| 8643 | FieldTypes[i], /*TInfo=*/nullptr, | |||
| 8644 | /*BitWidth=*/nullptr, | |||
| 8645 | /*Mutable=*/false, | |||
| 8646 | ICIS_NoInit); | |||
| 8647 | Field->setAccess(AS_public); | |||
| 8648 | VaListTagDecl->addDecl(Field); | |||
| 8649 | } | |||
| 8650 | VaListTagDecl->completeDefinition(); | |||
| 8651 | Context->VaListTagDecl = VaListTagDecl; | |||
| 8652 | QualType VaListTagType = Context->getRecordType(VaListTagDecl); | |||
| 8653 | ||||
| 8654 | // } __va_list_tag; | |||
| 8655 | TypedefDecl *VaListTagTypedefDecl = | |||
| 8656 | Context->buildImplicitTypedef(VaListTagType, "__va_list_tag"); | |||
| 8657 | ||||
| 8658 | QualType VaListTagTypedefType = | |||
| 8659 | Context->getTypedefType(VaListTagTypedefDecl); | |||
| 8660 | ||||
| 8661 | // typedef __va_list_tag __builtin_va_list[1]; | |||
| 8662 | llvm::APInt Size(Context->getTypeSize(Context->getSizeType()), 1); | |||
| 8663 | QualType VaListTagArrayType | |||
| 8664 | = Context->getConstantArrayType(VaListTagTypedefType, | |||
| 8665 | Size, nullptr, ArrayType::Normal, 0); | |||
| 8666 | return Context->buildImplicitTypedef(VaListTagArrayType, "__builtin_va_list"); | |||
| 8667 | } | |||
| 8668 | ||||
| 8669 | static TypedefDecl * | |||
| 8670 | CreateX86_64ABIBuiltinVaListDecl(const ASTContext *Context) { | |||
| 8671 | // struct __va_list_tag { | |||
| 8672 | RecordDecl *VaListTagDecl; | |||
| 8673 | VaListTagDecl = Context->buildImplicitRecord("__va_list_tag"); | |||
| 8674 | VaListTagDecl->startDefinition(); | |||
| 8675 | ||||
| 8676 | const size_t NumFields = 4; | |||
| 8677 | QualType FieldTypes[NumFields]; | |||
| 8678 | const char *FieldNames[NumFields]; | |||
| 8679 | ||||
| 8680 | // unsigned gp_offset; | |||
| 8681 | FieldTypes[0] = Context->UnsignedIntTy; | |||
| 8682 | FieldNames[0] = "gp_offset"; | |||
| 8683 | ||||
| 8684 | // unsigned fp_offset; | |||
| 8685 | FieldTypes[1] = Context->UnsignedIntTy; | |||
| 8686 | FieldNames[1] = "fp_offset"; | |||
| 8687 | ||||
| 8688 | // void* overflow_arg_area; | |||
| 8689 | FieldTypes[2] = Context->getPointerType(Context->VoidTy); | |||
| 8690 | FieldNames[2] = "overflow_arg_area"; | |||
| 8691 | ||||
| 8692 | // void* reg_save_area; | |||
| 8693 | FieldTypes[3] = Context->getPointerType(Context->VoidTy); | |||
| 8694 | FieldNames[3] = "reg_save_area"; | |||
| 8695 | ||||
| 8696 | // Create fields | |||
| 8697 | for (unsigned i = 0; i < NumFields; ++i) { | |||
| 8698 | FieldDecl *Field = FieldDecl::Create(const_cast<ASTContext &>(*Context), | |||
| 8699 | VaListTagDecl, | |||
| 8700 | SourceLocation(), | |||
| 8701 | SourceLocation(), | |||
| 8702 | &Context->Idents.get(FieldNames[i]), | |||
| 8703 | FieldTypes[i], /*TInfo=*/nullptr, | |||
| 8704 | /*BitWidth=*/nullptr, | |||
| 8705 | /*Mutable=*/false, | |||
| 8706 | ICIS_NoInit); | |||
| 8707 | Field->setAccess(AS_public); | |||
| 8708 | VaListTagDecl->addDecl(Field); | |||
| 8709 | } | |||
| 8710 | VaListTagDecl->completeDefinition(); | |||
| 8711 | Context->VaListTagDecl = VaListTagDecl; | |||
| 8712 | QualType VaListTagType = Context->getRecordType(VaListTagDecl); | |||
| 8713 | ||||
| 8714 | // }; | |||
| 8715 | ||||
| 8716 | // typedef struct __va_list_tag __builtin_va_list[1]; | |||
| 8717 | llvm::APInt Size(Context->getTypeSize(Context->getSizeType()), 1); | |||
| 8718 | QualType VaListTagArrayType = Context->getConstantArrayType( | |||
| 8719 | VaListTagType, Size, nullptr, ArrayType::Normal, 0); | |||
| 8720 | return Context->buildImplicitTypedef(VaListTagArrayType, "__builtin_va_list"); | |||
| 8721 | } | |||
| 8722 | ||||
| 8723 | static TypedefDecl *CreatePNaClABIBuiltinVaListDecl(const ASTContext *Context) { | |||
| 8724 | // typedef int __builtin_va_list[4]; | |||
| 8725 | llvm::APInt Size(Context->getTypeSize(Context->getSizeType()), 4); | |||
| 8726 | QualType IntArrayType = Context->getConstantArrayType( | |||
| 8727 | Context->IntTy, Size, nullptr, ArrayType::Normal, 0); | |||
| 8728 | return Context->buildImplicitTypedef(IntArrayType, "__builtin_va_list"); | |||
| 8729 | } | |||
| 8730 | ||||
| 8731 | static TypedefDecl * | |||
| 8732 | CreateAAPCSABIBuiltinVaListDecl(const ASTContext *Context) { | |||
| 8733 | // struct __va_list | |||
| 8734 | RecordDecl *VaListDecl = Context->buildImplicitRecord("__va_list"); | |||
| 8735 | if (Context->getLangOpts().CPlusPlus) { | |||
| 8736 | // namespace std { struct __va_list { | |||
| 8737 | NamespaceDecl *NS; | |||
| 8738 | NS = NamespaceDecl::Create(const_cast<ASTContext &>(*Context), | |||
| 8739 | Context->getTranslationUnitDecl(), | |||
| 8740 | /*Inline*/false, SourceLocation(), | |||
| 8741 | SourceLocation(), &Context->Idents.get("std"), | |||
| 8742 | /*PrevDecl*/ nullptr); | |||
| 8743 | NS->setImplicit(); | |||
| 8744 | VaListDecl->setDeclContext(NS); | |||
| 8745 | } | |||
| 8746 | ||||
| 8747 | VaListDecl->startDefinition(); | |||
| 8748 | ||||
| 8749 | // void * __ap; | |||
| 8750 | FieldDecl *Field = FieldDecl::Create(const_cast<ASTContext &>(*Context), | |||
| 8751 | VaListDecl, | |||
| 8752 | SourceLocation(), | |||
| 8753 | SourceLocation(), | |||
| 8754 | &Context->Idents.get("__ap"), | |||
| 8755 | Context->getPointerType(Context->VoidTy), | |||
| 8756 | /*TInfo=*/nullptr, | |||
| 8757 | /*BitWidth=*/nullptr, | |||
| 8758 | /*Mutable=*/false, | |||
| 8759 | ICIS_NoInit); | |||
| 8760 | Field->setAccess(AS_public); | |||
| 8761 | VaListDecl->addDecl(Field); | |||
| 8762 | ||||
| 8763 | // }; | |||
| 8764 | VaListDecl->completeDefinition(); | |||
| 8765 | Context->VaListTagDecl = VaListDecl; | |||
| 8766 | ||||
| 8767 | // typedef struct __va_list __builtin_va_list; | |||
| 8768 | QualType T = Context->getRecordType(VaListDecl); | |||
| 8769 | return Context->buildImplicitTypedef(T, "__builtin_va_list"); | |||
| 8770 | } | |||
| 8771 | ||||
| 8772 | static TypedefDecl * | |||
| 8773 | CreateSystemZBuiltinVaListDecl(const ASTContext *Context) { | |||
| 8774 | // struct __va_list_tag { | |||
| 8775 | RecordDecl *VaListTagDecl; | |||
| 8776 | VaListTagDecl = Context->buildImplicitRecord("__va_list_tag"); | |||
| 8777 | VaListTagDecl->startDefinition(); | |||
| 8778 | ||||
| 8779 | const size_t NumFields = 4; | |||
| 8780 | QualType FieldTypes[NumFields]; | |||
| 8781 | const char *FieldNames[NumFields]; | |||
| 8782 | ||||
| 8783 | // long __gpr; | |||
| 8784 | FieldTypes[0] = Context->LongTy; | |||
| 8785 | FieldNames[0] = "__gpr"; | |||
| 8786 | ||||
| 8787 | // long __fpr; | |||
| 8788 | FieldTypes[1] = Context->LongTy; | |||
| 8789 | FieldNames[1] = "__fpr"; | |||
| 8790 | ||||
| 8791 | // void *__overflow_arg_area; | |||
| 8792 | FieldTypes[2] = Context->getPointerType(Context->VoidTy); | |||
| 8793 | FieldNames[2] = "__overflow_arg_area"; | |||
| 8794 | ||||
| 8795 | // void *__reg_save_area; | |||
| 8796 | FieldTypes[3] = Context->getPointerType(Context->VoidTy); | |||
| 8797 | FieldNames[3] = "__reg_save_area"; | |||
| 8798 | ||||
| 8799 | // Create fields | |||
| 8800 | for (unsigned i = 0; i < NumFields; ++i) { | |||
| 8801 | FieldDecl *Field = FieldDecl::Create(const_cast<ASTContext &>(*Context), | |||
| 8802 | VaListTagDecl, | |||
| 8803 | SourceLocation(), | |||
| 8804 | SourceLocation(), | |||
| 8805 | &Context->Idents.get(FieldNames[i]), | |||
| 8806 | FieldTypes[i], /*TInfo=*/nullptr, | |||
| 8807 | /*BitWidth=*/nullptr, | |||
| 8808 | /*Mutable=*/false, | |||
| 8809 | ICIS_NoInit); | |||
| 8810 | Field->setAccess(AS_public); | |||
| 8811 | VaListTagDecl->addDecl(Field); | |||
| 8812 | } | |||
| 8813 | VaListTagDecl->completeDefinition(); | |||
| 8814 | Context->VaListTagDecl = VaListTagDecl; | |||
| 8815 | QualType VaListTagType = Context->getRecordType(VaListTagDecl); | |||
| 8816 | ||||
| 8817 | // }; | |||
| 8818 | ||||
| 8819 | // typedef __va_list_tag __builtin_va_list[1]; | |||
| 8820 | llvm::APInt Size(Context->getTypeSize(Context->getSizeType()), 1); | |||
| 8821 | QualType VaListTagArrayType = Context->getConstantArrayType( | |||
| 8822 | VaListTagType, Size, nullptr, ArrayType::Normal, 0); | |||
| 8823 | ||||
| 8824 | return Context->buildImplicitTypedef(VaListTagArrayType, "__builtin_va_list"); | |||
| 8825 | } | |||
| 8826 | ||||
| 8827 | static TypedefDecl *CreateHexagonBuiltinVaListDecl(const ASTContext *Context) { | |||
| 8828 | // typedef struct __va_list_tag { | |||
| 8829 | RecordDecl *VaListTagDecl; | |||
| 8830 | VaListTagDecl = Context->buildImplicitRecord("__va_list_tag"); | |||
| 8831 | VaListTagDecl->startDefinition(); | |||
| 8832 | ||||
| 8833 | const size_t NumFields = 3; | |||
| 8834 | QualType FieldTypes[NumFields]; | |||
| 8835 | const char *FieldNames[NumFields]; | |||
| 8836 | ||||
| 8837 | // void *CurrentSavedRegisterArea; | |||
| 8838 | FieldTypes[0] = Context->getPointerType(Context->VoidTy); | |||
| 8839 | FieldNames[0] = "__current_saved_reg_area_pointer"; | |||
| 8840 | ||||
| 8841 | // void *SavedRegAreaEnd; | |||
| 8842 | FieldTypes[1] = Context->getPointerType(Context->VoidTy); | |||
| 8843 | FieldNames[1] = "__saved_reg_area_end_pointer"; | |||
| 8844 | ||||
| 8845 | // void *OverflowArea; | |||
| 8846 | FieldTypes[2] = Context->getPointerType(Context->VoidTy); | |||
| 8847 | FieldNames[2] = "__overflow_area_pointer"; | |||
| 8848 | ||||
| 8849 | // Create fields | |||
| 8850 | for (unsigned i = 0; i < NumFields; ++i) { | |||
| 8851 | FieldDecl *Field = FieldDecl::Create( | |||
| 8852 | const_cast<ASTContext &>(*Context), VaListTagDecl, SourceLocation(), | |||
| 8853 | SourceLocation(), &Context->Idents.get(FieldNames[i]), FieldTypes[i], | |||
| 8854 | /*TInfo=*/nullptr, | |||
| 8855 | /*BitWidth=*/nullptr, | |||
| 8856 | /*Mutable=*/false, ICIS_NoInit); | |||
| 8857 | Field->setAccess(AS_public); | |||
| 8858 | VaListTagDecl->addDecl(Field); | |||
| 8859 | } | |||
| 8860 | VaListTagDecl->completeDefinition(); | |||
| 8861 | Context->VaListTagDecl = VaListTagDecl; | |||
| 8862 | QualType VaListTagType = Context->getRecordType(VaListTagDecl); | |||
| 8863 | ||||
| 8864 | // } __va_list_tag; | |||
| 8865 | TypedefDecl *VaListTagTypedefDecl = | |||
| 8866 | Context->buildImplicitTypedef(VaListTagType, "__va_list_tag"); | |||
| 8867 | ||||
| 8868 | QualType VaListTagTypedefType = Context->getTypedefType(VaListTagTypedefDecl); | |||
| 8869 | ||||
| 8870 | // typedef __va_list_tag __builtin_va_list[1]; | |||
| 8871 | llvm::APInt Size(Context->getTypeSize(Context->getSizeType()), 1); | |||
| 8872 | QualType VaListTagArrayType = Context->getConstantArrayType( | |||
| 8873 | VaListTagTypedefType, Size, nullptr, ArrayType::Normal, 0); | |||
| 8874 | ||||
| 8875 | return Context->buildImplicitTypedef(VaListTagArrayType, "__builtin_va_list"); | |||
| 8876 | } | |||
| 8877 | ||||
| 8878 | static TypedefDecl *CreateVaListDecl(const ASTContext *Context, | |||
| 8879 | TargetInfo::BuiltinVaListKind Kind) { | |||
| 8880 | switch (Kind) { | |||
| 8881 | case TargetInfo::CharPtrBuiltinVaList: | |||
| 8882 | return CreateCharPtrBuiltinVaListDecl(Context); | |||
| 8883 | case TargetInfo::VoidPtrBuiltinVaList: | |||
| 8884 | return CreateVoidPtrBuiltinVaListDecl(Context); | |||
| 8885 | case TargetInfo::AArch64ABIBuiltinVaList: | |||
| 8886 | return CreateAArch64ABIBuiltinVaListDecl(Context); | |||
| 8887 | case TargetInfo::PowerABIBuiltinVaList: | |||
| 8888 | return CreatePowerABIBuiltinVaListDecl(Context); | |||
| 8889 | case TargetInfo::X86_64ABIBuiltinVaList: | |||
| 8890 | return CreateX86_64ABIBuiltinVaListDecl(Context); | |||
| 8891 | case TargetInfo::PNaClABIBuiltinVaList: | |||
| 8892 | return CreatePNaClABIBuiltinVaListDecl(Context); | |||
| 8893 | case TargetInfo::AAPCSABIBuiltinVaList: | |||
| 8894 | return CreateAAPCSABIBuiltinVaListDecl(Context); | |||
| 8895 | case TargetInfo::SystemZBuiltinVaList: | |||
| 8896 | return CreateSystemZBuiltinVaListDecl(Context); | |||
| 8897 | case TargetInfo::HexagonBuiltinVaList: | |||
| 8898 | return CreateHexagonBuiltinVaListDecl(Context); | |||
| 8899 | } | |||
| 8900 | ||||
| 8901 | llvm_unreachable("Unhandled __builtin_va_list type kind")::llvm::llvm_unreachable_internal("Unhandled __builtin_va_list type kind" , "clang/lib/AST/ASTContext.cpp", 8901); | |||
| 8902 | } | |||
| 8903 | ||||
| 8904 | TypedefDecl *ASTContext::getBuiltinVaListDecl() const { | |||
| 8905 | if (!BuiltinVaListDecl) { | |||
| 8906 | BuiltinVaListDecl = CreateVaListDecl(this, Target->getBuiltinVaListKind()); | |||
| 8907 | assert(BuiltinVaListDecl->isImplicit())(static_cast <bool> (BuiltinVaListDecl->isImplicit() ) ? void (0) : __assert_fail ("BuiltinVaListDecl->isImplicit()" , "clang/lib/AST/ASTContext.cpp", 8907, __extension__ __PRETTY_FUNCTION__ )); | |||
| 8908 | } | |||
| 8909 | ||||
| 8910 | return BuiltinVaListDecl; | |||
| 8911 | } | |||
| 8912 | ||||
| 8913 | Decl *ASTContext::getVaListTagDecl() const { | |||
| 8914 | // Force the creation of VaListTagDecl by building the __builtin_va_list | |||
| 8915 | // declaration. | |||
| 8916 | if (!VaListTagDecl) | |||
| 8917 | (void)getBuiltinVaListDecl(); | |||
| 8918 | ||||
| 8919 | return VaListTagDecl; | |||
| 8920 | } | |||
| 8921 | ||||
| 8922 | TypedefDecl *ASTContext::getBuiltinMSVaListDecl() const { | |||
| 8923 | if (!BuiltinMSVaListDecl) | |||
| 8924 | BuiltinMSVaListDecl = CreateMSVaListDecl(this); | |||
| 8925 | ||||
| 8926 | return BuiltinMSVaListDecl; | |||
| 8927 | } | |||
| 8928 | ||||
| 8929 | bool ASTContext::canBuiltinBeRedeclared(const FunctionDecl *FD) const { | |||
| 8930 | return BuiltinInfo.canBeRedeclared(FD->getBuiltinID()); | |||
| 8931 | } | |||
| 8932 | ||||
| 8933 | void ASTContext::setObjCConstantStringInterface(ObjCInterfaceDecl *Decl) { | |||
| 8934 | assert(ObjCConstantStringType.isNull() &&(static_cast <bool> (ObjCConstantStringType.isNull() && "'NSConstantString' type already set!") ? void (0) : __assert_fail ("ObjCConstantStringType.isNull() && \"'NSConstantString' type already set!\"" , "clang/lib/AST/ASTContext.cpp", 8935, __extension__ __PRETTY_FUNCTION__ )) | |||
| 8935 | "'NSConstantString' type already set!")(static_cast <bool> (ObjCConstantStringType.isNull() && "'NSConstantString' type already set!") ? void (0) : __assert_fail ("ObjCConstantStringType.isNull() && \"'NSConstantString' type already set!\"" , "clang/lib/AST/ASTContext.cpp", 8935, __extension__ __PRETTY_FUNCTION__ )); | |||
| 8936 | ||||
| 8937 | ObjCConstantStringType = getObjCInterfaceType(Decl); | |||
| 8938 | } | |||
| 8939 | ||||
| 8940 | /// Retrieve the template name that corresponds to a non-empty | |||
| 8941 | /// lookup. | |||
| 8942 | TemplateName | |||
| 8943 | ASTContext::getOverloadedTemplateName(UnresolvedSetIterator Begin, | |||
| 8944 | UnresolvedSetIterator End) const { | |||
| 8945 | unsigned size = End - Begin; | |||
| 8946 | assert(size > 1 && "set is not overloaded!")(static_cast <bool> (size > 1 && "set is not overloaded!" ) ? void (0) : __assert_fail ("size > 1 && \"set is not overloaded!\"" , "clang/lib/AST/ASTContext.cpp", 8946, __extension__ __PRETTY_FUNCTION__ )); | |||
| 8947 | ||||
| 8948 | void *memory = Allocate(sizeof(OverloadedTemplateStorage) + | |||
| 8949 | size * sizeof(FunctionTemplateDecl*)); | |||
| 8950 | auto *OT = new (memory) OverloadedTemplateStorage(size); | |||
| 8951 | ||||
| 8952 | NamedDecl **Storage = OT->getStorage(); | |||
| 8953 | for (UnresolvedSetIterator I = Begin; I != End; ++I) { | |||
| 8954 | NamedDecl *D = *I; | |||
| 8955 | assert(isa<FunctionTemplateDecl>(D) ||(static_cast <bool> (isa<FunctionTemplateDecl>(D) || isa<UnresolvedUsingValueDecl>(D) || (isa<UsingShadowDecl >(D) && isa<FunctionTemplateDecl>(D->getUnderlyingDecl ()))) ? void (0) : __assert_fail ("isa<FunctionTemplateDecl>(D) || isa<UnresolvedUsingValueDecl>(D) || (isa<UsingShadowDecl>(D) && isa<FunctionTemplateDecl>(D->getUnderlyingDecl()))" , "clang/lib/AST/ASTContext.cpp", 8958, __extension__ __PRETTY_FUNCTION__ )) | |||
| 8956 | isa<UnresolvedUsingValueDecl>(D) ||(static_cast <bool> (isa<FunctionTemplateDecl>(D) || isa<UnresolvedUsingValueDecl>(D) || (isa<UsingShadowDecl >(D) && isa<FunctionTemplateDecl>(D->getUnderlyingDecl ()))) ? void (0) : __assert_fail ("isa<FunctionTemplateDecl>(D) || isa<UnresolvedUsingValueDecl>(D) || (isa<UsingShadowDecl>(D) && isa<FunctionTemplateDecl>(D->getUnderlyingDecl()))" , "clang/lib/AST/ASTContext.cpp", 8958, __extension__ __PRETTY_FUNCTION__ )) | |||
| 8957 | (isa<UsingShadowDecl>(D) &&(static_cast <bool> (isa<FunctionTemplateDecl>(D) || isa<UnresolvedUsingValueDecl>(D) || (isa<UsingShadowDecl >(D) && isa<FunctionTemplateDecl>(D->getUnderlyingDecl ()))) ? void (0) : __assert_fail ("isa<FunctionTemplateDecl>(D) || isa<UnresolvedUsingValueDecl>(D) || (isa<UsingShadowDecl>(D) && isa<FunctionTemplateDecl>(D->getUnderlyingDecl()))" , "clang/lib/AST/ASTContext.cpp", 8958, __extension__ __PRETTY_FUNCTION__ )) | |||
| 8958 | isa<FunctionTemplateDecl>(D->getUnderlyingDecl())))(static_cast <bool> (isa<FunctionTemplateDecl>(D) || isa<UnresolvedUsingValueDecl>(D) || (isa<UsingShadowDecl >(D) && isa<FunctionTemplateDecl>(D->getUnderlyingDecl ()))) ? void (0) : __assert_fail ("isa<FunctionTemplateDecl>(D) || isa<UnresolvedUsingValueDecl>(D) || (isa<UsingShadowDecl>(D) && isa<FunctionTemplateDecl>(D->getUnderlyingDecl()))" , "clang/lib/AST/ASTContext.cpp", 8958, __extension__ __PRETTY_FUNCTION__ )); | |||
| 8959 | *Storage++ = D; | |||
| 8960 | } | |||
| 8961 | ||||
| 8962 | return TemplateName(OT); | |||
| 8963 | } | |||
| 8964 | ||||
| 8965 | /// Retrieve a template name representing an unqualified-id that has been | |||
| 8966 | /// assumed to name a template for ADL purposes. | |||
| 8967 | TemplateName ASTContext::getAssumedTemplateName(DeclarationName Name) const { | |||
| 8968 | auto *OT = new (*this) AssumedTemplateStorage(Name); | |||
| 8969 | return TemplateName(OT); | |||
| 8970 | } | |||
| 8971 | ||||
| 8972 | /// Retrieve the template name that represents a qualified | |||
| 8973 | /// template name such as \c std::vector. | |||
| 8974 | TemplateName | |||
| 8975 | ASTContext::getQualifiedTemplateName(NestedNameSpecifier *NNS, | |||
| 8976 | bool TemplateKeyword, | |||
| 8977 | TemplateDecl *Template) const { | |||
| 8978 | assert(NNS && "Missing nested-name-specifier in qualified template name")(static_cast <bool> (NNS && "Missing nested-name-specifier in qualified template name" ) ? void (0) : __assert_fail ("NNS && \"Missing nested-name-specifier in qualified template name\"" , "clang/lib/AST/ASTContext.cpp", 8978, __extension__ __PRETTY_FUNCTION__ )); | |||
| 8979 | ||||
| 8980 | // FIXME: Canonicalization? | |||
| 8981 | llvm::FoldingSetNodeID ID; | |||
| 8982 | QualifiedTemplateName::Profile(ID, NNS, TemplateKeyword, Template); | |||
| 8983 | ||||
| 8984 | void *InsertPos = nullptr; | |||
| 8985 | QualifiedTemplateName *QTN = | |||
| 8986 | QualifiedTemplateNames.FindNodeOrInsertPos(ID, InsertPos); | |||
| 8987 | if (!QTN) { | |||
| 8988 | QTN = new (*this, alignof(QualifiedTemplateName)) | |||
| 8989 | QualifiedTemplateName(NNS, TemplateKeyword, Template); | |||
| 8990 | QualifiedTemplateNames.InsertNode(QTN, InsertPos); | |||
| 8991 | } | |||
| 8992 | ||||
| 8993 | return TemplateName(QTN); | |||
| 8994 | } | |||
| 8995 | ||||
| 8996 | /// Retrieve the template name that represents a dependent | |||
| 8997 | /// template name such as \c MetaFun::template apply. | |||
| 8998 | TemplateName | |||
| 8999 | ASTContext::getDependentTemplateName(NestedNameSpecifier *NNS, | |||
| 9000 | const IdentifierInfo *Name) const { | |||
| 9001 | assert((!NNS || NNS->isDependent()) &&(static_cast <bool> ((!NNS || NNS->isDependent()) && "Nested name specifier must be dependent") ? void (0) : __assert_fail ("(!NNS || NNS->isDependent()) && \"Nested name specifier must be dependent\"" , "clang/lib/AST/ASTContext.cpp", 9002, __extension__ __PRETTY_FUNCTION__ )) | |||
| 9002 | "Nested name specifier must be dependent")(static_cast <bool> ((!NNS || NNS->isDependent()) && "Nested name specifier must be dependent") ? void (0) : __assert_fail ("(!NNS || NNS->isDependent()) && \"Nested name specifier must be dependent\"" , "clang/lib/AST/ASTContext.cpp", 9002, __extension__ __PRETTY_FUNCTION__ )); | |||
| 9003 | ||||
| 9004 | llvm::FoldingSetNodeID ID; | |||
| 9005 | DependentTemplateName::Profile(ID, NNS, Name); | |||
| 9006 | ||||
| 9007 | void *InsertPos = nullptr; | |||
| 9008 | DependentTemplateName *QTN = | |||
| 9009 | DependentTemplateNames.FindNodeOrInsertPos(ID, InsertPos); | |||
| 9010 | ||||
| 9011 | if (QTN) | |||
| 9012 | return TemplateName(QTN); | |||
| 9013 | ||||
| 9014 | NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); | |||
| 9015 | if (CanonNNS == NNS) { | |||
| 9016 | QTN = new (*this, alignof(DependentTemplateName)) | |||
| 9017 | DependentTemplateName(NNS, Name); | |||
| 9018 | } else { | |||
| 9019 | TemplateName Canon = getDependentTemplateName(CanonNNS, Name); | |||
| 9020 | QTN = new (*this, alignof(DependentTemplateName)) | |||
| 9021 | DependentTemplateName(NNS, Name, Canon); | |||
| 9022 | DependentTemplateName *CheckQTN = | |||
| 9023 | DependentTemplateNames.FindNodeOrInsertPos(ID, InsertPos); | |||
| 9024 | assert(!CheckQTN && "Dependent type name canonicalization broken")(static_cast <bool> (!CheckQTN && "Dependent type name canonicalization broken" ) ? void (0) : __assert_fail ("!CheckQTN && \"Dependent type name canonicalization broken\"" , "clang/lib/AST/ASTContext.cpp", 9024, __extension__ __PRETTY_FUNCTION__ )); | |||
| 9025 | (void)CheckQTN; | |||
| 9026 | } | |||
| 9027 | ||||
| 9028 | DependentTemplateNames.InsertNode(QTN, InsertPos); | |||
| 9029 | return TemplateName(QTN); | |||
| 9030 | } | |||
| 9031 | ||||
| 9032 | /// Retrieve the template name that represents a dependent | |||
| 9033 | /// template name such as \c MetaFun::template operator+. | |||
| 9034 | TemplateName | |||
| 9035 | ASTContext::getDependentTemplateName(NestedNameSpecifier *NNS, | |||
| 9036 | OverloadedOperatorKind Operator) const { | |||
| 9037 | assert((!NNS || NNS->isDependent()) &&(static_cast <bool> ((!NNS || NNS->isDependent()) && "Nested name specifier must be dependent") ? void (0) : __assert_fail ("(!NNS || NNS->isDependent()) && \"Nested name specifier must be dependent\"" , "clang/lib/AST/ASTContext.cpp", 9038, __extension__ __PRETTY_FUNCTION__ )) | |||
| 9038 | "Nested name specifier must be dependent")(static_cast <bool> ((!NNS || NNS->isDependent()) && "Nested name specifier must be dependent") ? void (0) : __assert_fail ("(!NNS || NNS->isDependent()) && \"Nested name specifier must be dependent\"" , "clang/lib/AST/ASTContext.cpp", 9038, __extension__ __PRETTY_FUNCTION__ )); | |||
| 9039 | ||||
| 9040 | llvm::FoldingSetNodeID ID; | |||
| 9041 | DependentTemplateName::Profile(ID, NNS, Operator); | |||
| 9042 | ||||
| 9043 | void *InsertPos = nullptr; | |||
| 9044 | DependentTemplateName *QTN | |||
| 9045 | = DependentTemplateNames.FindNodeOrInsertPos(ID, InsertPos); | |||
| 9046 | ||||
| 9047 | if (QTN) | |||
| 9048 | return TemplateName(QTN); | |||
| 9049 | ||||
| 9050 | NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); | |||
| 9051 | if (CanonNNS == NNS) { | |||
| 9052 | QTN = new (*this, alignof(DependentTemplateName)) | |||
| 9053 | DependentTemplateName(NNS, Operator); | |||
| 9054 | } else { | |||
| 9055 | TemplateName Canon = getDependentTemplateName(CanonNNS, Operator); | |||
| 9056 | QTN = new (*this, alignof(DependentTemplateName)) | |||
| 9057 | DependentTemplateName(NNS, Operator, Canon); | |||
| 9058 | ||||
| 9059 | DependentTemplateName *CheckQTN | |||
| 9060 | = DependentTemplateNames.FindNodeOrInsertPos(ID, InsertPos); | |||
| 9061 | assert(!CheckQTN && "Dependent template name canonicalization broken")(static_cast <bool> (!CheckQTN && "Dependent template name canonicalization broken" ) ? void (0) : __assert_fail ("!CheckQTN && \"Dependent template name canonicalization broken\"" , "clang/lib/AST/ASTContext.cpp", 9061, __extension__ __PRETTY_FUNCTION__ )); | |||
| 9062 | (void)CheckQTN; | |||
| 9063 | } | |||
| 9064 | ||||
| 9065 | DependentTemplateNames.InsertNode(QTN, InsertPos); | |||
| 9066 | return TemplateName(QTN); | |||
| 9067 | } | |||
| 9068 | ||||
| 9069 | TemplateName | |||
| 9070 | ASTContext::getSubstTemplateTemplateParm(TemplateTemplateParmDecl *param, | |||
| 9071 | TemplateName replacement) const { | |||
| 9072 | llvm::FoldingSetNodeID ID; | |||
| 9073 | SubstTemplateTemplateParmStorage::Profile(ID, param, replacement); | |||
| 9074 | ||||
| 9075 | void *insertPos = nullptr; | |||
| 9076 | SubstTemplateTemplateParmStorage *subst | |||
| 9077 | = SubstTemplateTemplateParms.FindNodeOrInsertPos(ID, insertPos); | |||
| 9078 | ||||
| 9079 | if (!subst) { | |||
| 9080 | subst = new (*this) SubstTemplateTemplateParmStorage(param, replacement); | |||
| 9081 | SubstTemplateTemplateParms.InsertNode(subst, insertPos); | |||
| 9082 | } | |||
| 9083 | ||||
| 9084 | return TemplateName(subst); | |||
| 9085 | } | |||
| 9086 | ||||
| 9087 | TemplateName | |||
| 9088 | ASTContext::getSubstTemplateTemplateParmPack(TemplateTemplateParmDecl *Param, | |||
| 9089 | const TemplateArgument &ArgPack) const { | |||
| 9090 | auto &Self = const_cast<ASTContext &>(*this); | |||
| 9091 | llvm::FoldingSetNodeID ID; | |||
| 9092 | SubstTemplateTemplateParmPackStorage::Profile(ID, Self, Param, ArgPack); | |||
| 9093 | ||||
| 9094 | void *InsertPos = nullptr; | |||
| 9095 | SubstTemplateTemplateParmPackStorage *Subst | |||
| 9096 | = SubstTemplateTemplateParmPacks.FindNodeOrInsertPos(ID, InsertPos); | |||
| 9097 | ||||
| 9098 | if (!Subst) { | |||
| 9099 | Subst = new (*this) SubstTemplateTemplateParmPackStorage(Param, | |||
| 9100 | ArgPack.pack_size(), | |||
| 9101 | ArgPack.pack_begin()); | |||
| 9102 | SubstTemplateTemplateParmPacks.InsertNode(Subst, InsertPos); | |||
| 9103 | } | |||
| 9104 | ||||
| 9105 | return TemplateName(Subst); | |||
| 9106 | } | |||
| 9107 | ||||
| 9108 | /// getFromTargetType - Given one of the integer types provided by | |||
| 9109 | /// TargetInfo, produce the corresponding type. The unsigned @p Type | |||
| 9110 | /// is actually a value of type @c TargetInfo::IntType. | |||
| 9111 | CanQualType ASTContext::getFromTargetType(unsigned Type) const { | |||
| 9112 | switch (Type) { | |||
| 9113 | case TargetInfo::NoInt: return {}; | |||
| 9114 | case TargetInfo::SignedChar: return SignedCharTy; | |||
| 9115 | case TargetInfo::UnsignedChar: return UnsignedCharTy; | |||
| 9116 | case TargetInfo::SignedShort: return ShortTy; | |||
| 9117 | case TargetInfo::UnsignedShort: return UnsignedShortTy; | |||
| 9118 | case TargetInfo::SignedInt: return IntTy; | |||
| 9119 | case TargetInfo::UnsignedInt: return UnsignedIntTy; | |||
| 9120 | case TargetInfo::SignedLong: return LongTy; | |||
| 9121 | case TargetInfo::UnsignedLong: return UnsignedLongTy; | |||
| 9122 | case TargetInfo::SignedLongLong: return LongLongTy; | |||
| 9123 | case TargetInfo::UnsignedLongLong: return UnsignedLongLongTy; | |||
| 9124 | } | |||
| 9125 | ||||
| 9126 | llvm_unreachable("Unhandled TargetInfo::IntType value")::llvm::llvm_unreachable_internal("Unhandled TargetInfo::IntType value" , "clang/lib/AST/ASTContext.cpp", 9126); | |||
| 9127 | } | |||
| 9128 | ||||
| 9129 | //===----------------------------------------------------------------------===// | |||
| 9130 | // Type Predicates. | |||
| 9131 | //===----------------------------------------------------------------------===// | |||
| 9132 | ||||
| 9133 | /// getObjCGCAttr - Returns one of GCNone, Weak or Strong objc's | |||
| 9134 | /// garbage collection attribute. | |||
| 9135 | /// | |||
| 9136 | Qualifiers::GC ASTContext::getObjCGCAttrKind(QualType Ty) const { | |||
| 9137 | if (getLangOpts().getGC() == LangOptions::NonGC) | |||
| 9138 | return Qualifiers::GCNone; | |||
| 9139 | ||||
| 9140 | assert(getLangOpts().ObjC)(static_cast <bool> (getLangOpts().ObjC) ? void (0) : __assert_fail ("getLangOpts().ObjC", "clang/lib/AST/ASTContext.cpp", 9140, __extension__ __PRETTY_FUNCTION__)); | |||
| 9141 | Qualifiers::GC GCAttrs = Ty.getObjCGCAttr(); | |||
| 9142 | ||||
| 9143 | // Default behaviour under objective-C's gc is for ObjC pointers | |||
| 9144 | // (or pointers to them) be treated as though they were declared | |||
| 9145 | // as __strong. | |||
| 9146 | if (GCAttrs == Qualifiers::GCNone) { | |||
| 9147 | if (Ty->isObjCObjectPointerType() || Ty->isBlockPointerType()) | |||
| 9148 | return Qualifiers::Strong; | |||
| 9149 | else if (Ty->isPointerType()) | |||
| 9150 | return getObjCGCAttrKind(Ty->castAs<PointerType>()->getPointeeType()); | |||
| 9151 | } else { | |||
| 9152 | // It's not valid to set GC attributes on anything that isn't a | |||
| 9153 | // pointer. | |||
| 9154 | #ifndef NDEBUG | |||
| 9155 | QualType CT = Ty->getCanonicalTypeInternal(); | |||
| 9156 | while (const auto *AT = dyn_cast<ArrayType>(CT)) | |||
| 9157 | CT = AT->getElementType(); | |||
| 9158 | assert(CT->isAnyPointerType() || CT->isBlockPointerType())(static_cast <bool> (CT->isAnyPointerType() || CT-> isBlockPointerType()) ? void (0) : __assert_fail ("CT->isAnyPointerType() || CT->isBlockPointerType()" , "clang/lib/AST/ASTContext.cpp", 9158, __extension__ __PRETTY_FUNCTION__ )); | |||
| 9159 | #endif | |||
| 9160 | } | |||
| 9161 | return GCAttrs; | |||
| 9162 | } | |||
| 9163 | ||||
| 9164 | //===----------------------------------------------------------------------===// | |||
| 9165 | // Type Compatibility Testing | |||
| 9166 | //===----------------------------------------------------------------------===// | |||
| 9167 | ||||
| 9168 | /// areCompatVectorTypes - Return true if the two specified vector types are | |||
| 9169 | /// compatible. | |||
| 9170 | static bool areCompatVectorTypes(const VectorType *LHS, | |||
| 9171 | const VectorType *RHS) { | |||
| 9172 | assert(LHS->isCanonicalUnqualified() && RHS->isCanonicalUnqualified())(static_cast <bool> (LHS->isCanonicalUnqualified() && RHS->isCanonicalUnqualified()) ? void (0) : __assert_fail ("LHS->isCanonicalUnqualified() && RHS->isCanonicalUnqualified()" , "clang/lib/AST/ASTContext.cpp", 9172, __extension__ __PRETTY_FUNCTION__ )); | |||
| 9173 | return LHS->getElementType() == RHS->getElementType() && | |||
| 9174 | LHS->getNumElements() == RHS->getNumElements(); | |||
| 9175 | } | |||
| 9176 | ||||
| 9177 | /// areCompatMatrixTypes - Return true if the two specified matrix types are | |||
| 9178 | /// compatible. | |||
| 9179 | static bool areCompatMatrixTypes(const ConstantMatrixType *LHS, | |||
| 9180 | const ConstantMatrixType *RHS) { | |||
| 9181 | assert(LHS->isCanonicalUnqualified() && RHS->isCanonicalUnqualified())(static_cast <bool> (LHS->isCanonicalUnqualified() && RHS->isCanonicalUnqualified()) ? void (0) : __assert_fail ("LHS->isCanonicalUnqualified() && RHS->isCanonicalUnqualified()" , "clang/lib/AST/ASTContext.cpp", 9181, __extension__ __PRETTY_FUNCTION__ )); | |||
| 9182 | return LHS->getElementType() == RHS->getElementType() && | |||
| 9183 | LHS->getNumRows() == RHS->getNumRows() && | |||
| 9184 | LHS->getNumColumns() == RHS->getNumColumns(); | |||
| 9185 | } | |||
| 9186 | ||||
| 9187 | bool ASTContext::areCompatibleVectorTypes(QualType FirstVec, | |||
| 9188 | QualType SecondVec) { | |||
| 9189 | assert(FirstVec->isVectorType() && "FirstVec should be a vector type")(static_cast <bool> (FirstVec->isVectorType() && "FirstVec should be a vector type") ? void (0) : __assert_fail ("FirstVec->isVectorType() && \"FirstVec should be a vector type\"" , "clang/lib/AST/ASTContext.cpp", 9189, __extension__ __PRETTY_FUNCTION__ )); | |||
| 9190 | assert(SecondVec->isVectorType() && "SecondVec should be a vector type")(static_cast <bool> (SecondVec->isVectorType() && "SecondVec should be a vector type") ? void (0) : __assert_fail ("SecondVec->isVectorType() && \"SecondVec should be a vector type\"" , "clang/lib/AST/ASTContext.cpp", 9190, __extension__ __PRETTY_FUNCTION__ )); | |||
| 9191 | ||||
| 9192 | if (hasSameUnqualifiedType(FirstVec, SecondVec)) | |||
| 9193 | return true; | |||
| 9194 | ||||
| 9195 | // Treat Neon vector types and most AltiVec vector types as if they are the | |||
| 9196 | // equivalent GCC vector types. | |||
| 9197 | const auto *First = FirstVec->castAs<VectorType>(); | |||
| 9198 | const auto *Second = SecondVec->castAs<VectorType>(); | |||
| 9199 | if (First->getNumElements() == Second->getNumElements() && | |||
| 9200 | hasSameType(First->getElementType(), Second->getElementType()) && | |||
| 9201 | First->getVectorKind() != VectorType::AltiVecPixel && | |||
| 9202 | First->getVectorKind() != VectorType::AltiVecBool && | |||
| 9203 | Second->getVectorKind() != VectorType::AltiVecPixel && | |||
| 9204 | Second->getVectorKind() != VectorType::AltiVecBool && | |||
| 9205 | First->getVectorKind() != VectorType::SveFixedLengthDataVector && | |||
| 9206 | First->getVectorKind() != VectorType::SveFixedLengthPredicateVector && | |||
| 9207 | Second->getVectorKind() != VectorType::SveFixedLengthDataVector && | |||
| 9208 | Second->getVectorKind() != VectorType::SveFixedLengthPredicateVector) | |||
| 9209 | return true; | |||
| 9210 | ||||
| 9211 | return false; | |||
| 9212 | } | |||
| 9213 | ||||
| 9214 | /// getSVETypeSize - Return SVE vector or predicate register size. | |||
| 9215 | static uint64_t getSVETypeSize(ASTContext &Context, const BuiltinType *Ty) { | |||
| 9216 | assert(Ty->isVLSTBuiltinType() && "Invalid SVE Type")(static_cast <bool> (Ty->isVLSTBuiltinType() && "Invalid SVE Type") ? void (0) : __assert_fail ("Ty->isVLSTBuiltinType() && \"Invalid SVE Type\"" , "clang/lib/AST/ASTContext.cpp", 9216, __extension__ __PRETTY_FUNCTION__ )); | |||
| 9217 | return Ty->getKind() == BuiltinType::SveBool | |||
| 9218 | ? (Context.getLangOpts().VScaleMin * 128) / Context.getCharWidth() | |||
| 9219 | : Context.getLangOpts().VScaleMin * 128; | |||
| 9220 | } | |||
| 9221 | ||||
| 9222 | bool ASTContext::areCompatibleSveTypes(QualType FirstType, | |||
| 9223 | QualType SecondType) { | |||
| 9224 | assert(((FirstType->isSizelessBuiltinType() && SecondType->isVectorType()) ||(static_cast <bool> (((FirstType->isSizelessBuiltinType () && SecondType->isVectorType()) || (FirstType-> isVectorType() && SecondType->isSizelessBuiltinType ())) && "Expected SVE builtin type and vector type!") ? void (0) : __assert_fail ("((FirstType->isSizelessBuiltinType() && SecondType->isVectorType()) || (FirstType->isVectorType() && SecondType->isSizelessBuiltinType())) && \"Expected SVE builtin type and vector type!\"" , "clang/lib/AST/ASTContext.cpp", 9226, __extension__ __PRETTY_FUNCTION__ )) | |||
| 9225 | (FirstType->isVectorType() && SecondType->isSizelessBuiltinType())) &&(static_cast <bool> (((FirstType->isSizelessBuiltinType () && SecondType->isVectorType()) || (FirstType-> isVectorType() && SecondType->isSizelessBuiltinType ())) && "Expected SVE builtin type and vector type!") ? void (0) : __assert_fail ("((FirstType->isSizelessBuiltinType() && SecondType->isVectorType()) || (FirstType->isVectorType() && SecondType->isSizelessBuiltinType())) && \"Expected SVE builtin type and vector type!\"" , "clang/lib/AST/ASTContext.cpp", 9226, __extension__ __PRETTY_FUNCTION__ )) | |||
| 9226 | "Expected SVE builtin type and vector type!")(static_cast <bool> (((FirstType->isSizelessBuiltinType () && SecondType->isVectorType()) || (FirstType-> isVectorType() && SecondType->isSizelessBuiltinType ())) && "Expected SVE builtin type and vector type!") ? void (0) : __assert_fail ("((FirstType->isSizelessBuiltinType() && SecondType->isVectorType()) || (FirstType->isVectorType() && SecondType->isSizelessBuiltinType())) && \"Expected SVE builtin type and vector type!\"" , "clang/lib/AST/ASTContext.cpp", 9226, __extension__ __PRETTY_FUNCTION__ )); | |||
| 9227 | ||||
| 9228 | auto IsValidCast = [this](QualType FirstType, QualType SecondType) { | |||
| 9229 | if (const auto *BT = FirstType->getAs<BuiltinType>()) { | |||
| 9230 | if (const auto *VT = SecondType->getAs<VectorType>()) { | |||
| 9231 | // Predicates have the same representation as uint8 so we also have to | |||
| 9232 | // check the kind to make these types incompatible. | |||
| 9233 | if (VT->getVectorKind() == VectorType::SveFixedLengthPredicateVector) | |||
| 9234 | return BT->getKind() == BuiltinType::SveBool; | |||
| 9235 | else if (VT->getVectorKind() == VectorType::SveFixedLengthDataVector) | |||
| 9236 | return VT->getElementType().getCanonicalType() == | |||
| 9237 | FirstType->getSveEltType(*this); | |||
| 9238 | else if (VT->getVectorKind() == VectorType::GenericVector) | |||
| 9239 | return getTypeSize(SecondType) == getSVETypeSize(*this, BT) && | |||
| 9240 | hasSameType(VT->getElementType(), | |||
| 9241 | getBuiltinVectorTypeInfo(BT).ElementType); | |||
| 9242 | } | |||
| 9243 | } | |||
| 9244 | return false; | |||
| 9245 | }; | |||
| 9246 | ||||
| 9247 | return IsValidCast(FirstType, SecondType) || | |||
| 9248 | IsValidCast(SecondType, FirstType); | |||
| 9249 | } | |||
| 9250 | ||||
| 9251 | bool ASTContext::areLaxCompatibleSveTypes(QualType FirstType, | |||
| 9252 | QualType SecondType) { | |||
| 9253 | assert(((FirstType->isSizelessBuiltinType() && SecondType->isVectorType()) ||(static_cast <bool> (((FirstType->isSizelessBuiltinType () && SecondType->isVectorType()) || (FirstType-> isVectorType() && SecondType->isSizelessBuiltinType ())) && "Expected SVE builtin type and vector type!") ? void (0) : __assert_fail ("((FirstType->isSizelessBuiltinType() && SecondType->isVectorType()) || (FirstType->isVectorType() && SecondType->isSizelessBuiltinType())) && \"Expected SVE builtin type and vector type!\"" , "clang/lib/AST/ASTContext.cpp", 9255, __extension__ __PRETTY_FUNCTION__ )) | |||
| 9254 | (FirstType->isVectorType() && SecondType->isSizelessBuiltinType())) &&(static_cast <bool> (((FirstType->isSizelessBuiltinType () && SecondType->isVectorType()) || (FirstType-> isVectorType() && SecondType->isSizelessBuiltinType ())) && "Expected SVE builtin type and vector type!") ? void (0) : __assert_fail ("((FirstType->isSizelessBuiltinType() && SecondType->isVectorType()) || (FirstType->isVectorType() && SecondType->isSizelessBuiltinType())) && \"Expected SVE builtin type and vector type!\"" , "clang/lib/AST/ASTContext.cpp", 9255, __extension__ __PRETTY_FUNCTION__ )) | |||
| 9255 | "Expected SVE builtin type and vector type!")(static_cast <bool> (((FirstType->isSizelessBuiltinType () && SecondType->isVectorType()) || (FirstType-> isVectorType() && SecondType->isSizelessBuiltinType ())) && "Expected SVE builtin type and vector type!") ? void (0) : __assert_fail ("((FirstType->isSizelessBuiltinType() && SecondType->isVectorType()) || (FirstType->isVectorType() && SecondType->isSizelessBuiltinType())) && \"Expected SVE builtin type and vector type!\"" , "clang/lib/AST/ASTContext.cpp", 9255, __extension__ __PRETTY_FUNCTION__ )); | |||
| 9256 | ||||
| 9257 | auto IsLaxCompatible = [this](QualType FirstType, QualType SecondType) { | |||
| 9258 | const auto *BT = FirstType->getAs<BuiltinType>(); | |||
| 9259 | if (!BT) | |||
| 9260 | return false; | |||
| 9261 | ||||
| 9262 | const auto *VecTy = SecondType->getAs<VectorType>(); | |||
| 9263 | if (VecTy && | |||
| 9264 | (VecTy->getVectorKind() == VectorType::SveFixedLengthDataVector || | |||
| 9265 | VecTy->getVectorKind() == VectorType::GenericVector)) { | |||
| 9266 | const LangOptions::LaxVectorConversionKind LVCKind = | |||
| 9267 | getLangOpts().getLaxVectorConversions(); | |||
| 9268 | ||||
| 9269 | // Can not convert between sve predicates and sve vectors because of | |||
| 9270 | // different size. | |||
| 9271 | if (BT->getKind() == BuiltinType::SveBool && | |||
| 9272 | VecTy->getVectorKind() == VectorType::SveFixedLengthDataVector) | |||
| 9273 | return false; | |||
| 9274 | ||||
| 9275 | // If __ARM_FEATURE_SVE_BITS != N do not allow GNU vector lax conversion. | |||
| 9276 | // "Whenever __ARM_FEATURE_SVE_BITS==N, GNUT implicitly | |||
| 9277 | // converts to VLAT and VLAT implicitly converts to GNUT." | |||
| 9278 | // ACLE Spec Version 00bet6, 3.7.3.2. Behavior common to vectors and | |||
| 9279 | // predicates. | |||
| 9280 | if (VecTy->getVectorKind() == VectorType::GenericVector && | |||
| 9281 | getTypeSize(SecondType) != getSVETypeSize(*this, BT)) | |||
| 9282 | return false; | |||
| 9283 | ||||
| 9284 | // If -flax-vector-conversions=all is specified, the types are | |||
| 9285 | // certainly compatible. | |||
| 9286 | if (LVCKind == LangOptions::LaxVectorConversionKind::All) | |||
| 9287 | return true; | |||
| 9288 | ||||
| 9289 | // If -flax-vector-conversions=integer is specified, the types are | |||
| 9290 | // compatible if the elements are integer types. | |||
| 9291 | if (LVCKind == LangOptions::LaxVectorConversionKind::Integer) | |||
| 9292 | return VecTy->getElementType().getCanonicalType()->isIntegerType() && | |||
| 9293 | FirstType->getSveEltType(*this)->isIntegerType(); | |||
| 9294 | } | |||
| 9295 | ||||
| 9296 | return false; | |||
| 9297 | }; | |||
| 9298 | ||||
| 9299 | return IsLaxCompatible(FirstType, SecondType) || | |||
| 9300 | IsLaxCompatible(SecondType, FirstType); | |||
| 9301 | } | |||
| 9302 | ||||
| 9303 | bool ASTContext::hasDirectOwnershipQualifier(QualType Ty) const { | |||
| 9304 | while (true) { | |||
| 9305 | // __strong id | |||
| 9306 | if (const AttributedType *Attr = dyn_cast<AttributedType>(Ty)) { | |||
| 9307 | if (Attr->getAttrKind() == attr::ObjCOwnership) | |||
| 9308 | return true; | |||
| 9309 | ||||
| 9310 | Ty = Attr->getModifiedType(); | |||
| 9311 | ||||
| 9312 | // X *__strong (...) | |||
| 9313 | } else if (const ParenType *Paren = dyn_cast<ParenType>(Ty)) { | |||
| 9314 | Ty = Paren->getInnerType(); | |||
| 9315 | ||||
| 9316 | // We do not want to look through typedefs, typeof(expr), | |||
| 9317 | // typeof(type), or any other way that the type is somehow | |||
| 9318 | // abstracted. | |||
| 9319 | } else { | |||
| 9320 | return false; | |||
| 9321 | } | |||
| 9322 | } | |||
| 9323 | } | |||
| 9324 | ||||
| 9325 | //===----------------------------------------------------------------------===// | |||
| 9326 | // ObjCQualifiedIdTypesAreCompatible - Compatibility testing for qualified id's. | |||
| 9327 | //===----------------------------------------------------------------------===// | |||
| 9328 | ||||
| 9329 | /// ProtocolCompatibleWithProtocol - return 'true' if 'lProto' is in the | |||
| 9330 | /// inheritance hierarchy of 'rProto'. | |||
| 9331 | bool | |||
| 9332 | ASTContext::ProtocolCompatibleWithProtocol(ObjCProtocolDecl *lProto, | |||
| 9333 | ObjCProtocolDecl *rProto) const { | |||
| 9334 | if (declaresSameEntity(lProto, rProto)) | |||
| 9335 | return true; | |||
| 9336 | for (auto *PI : rProto->protocols()) | |||
| 9337 | if (ProtocolCompatibleWithProtocol(lProto, PI)) | |||
| 9338 | return true; | |||
| 9339 | return false; | |||
| 9340 | } | |||
| 9341 | ||||
| 9342 | /// ObjCQualifiedClassTypesAreCompatible - compare Class<pr,...> and | |||
| 9343 | /// Class<pr1, ...>. | |||
| 9344 | bool ASTContext::ObjCQualifiedClassTypesAreCompatible( | |||
| 9345 | const ObjCObjectPointerType *lhs, const ObjCObjectPointerType *rhs) { | |||
| 9346 | for (auto *lhsProto : lhs->quals()) { | |||
| 9347 | bool match = false; | |||
| 9348 | for (auto *rhsProto : rhs->quals()) { | |||
| 9349 | if (ProtocolCompatibleWithProtocol(lhsProto, rhsProto)) { | |||
| 9350 | match = true; | |||
| 9351 | break; | |||
| 9352 | } | |||
| 9353 | } | |||
| 9354 | if (!match) | |||
| 9355 | return false; | |||
| 9356 | } | |||
| 9357 | return true; | |||
| 9358 | } | |||
| 9359 | ||||
| 9360 | /// ObjCQualifiedIdTypesAreCompatible - We know that one of lhs/rhs is an | |||
| 9361 | /// ObjCQualifiedIDType. | |||
| 9362 | bool ASTContext::ObjCQualifiedIdTypesAreCompatible( | |||
| 9363 | const ObjCObjectPointerType *lhs, const ObjCObjectPointerType *rhs, | |||
| 9364 | bool compare) { | |||
| 9365 | // Allow id<P..> and an 'id' in all cases. | |||
| 9366 | if (lhs->isObjCIdType() || rhs->isObjCIdType()) | |||
| 9367 | return true; | |||
| 9368 | ||||
| 9369 | // Don't allow id<P..> to convert to Class or Class<P..> in either direction. | |||
| 9370 | if (lhs->isObjCClassType() || lhs->isObjCQualifiedClassType() || | |||
| 9371 | rhs->isObjCClassType() || rhs->isObjCQualifiedClassType()) | |||
| 9372 | return false; | |||
| 9373 | ||||
| 9374 | if (lhs->isObjCQualifiedIdType()) { | |||
| 9375 | if (rhs->qual_empty()) { | |||
| 9376 | // If the RHS is a unqualified interface pointer "NSString*", | |||
| 9377 | // make sure we check the class hierarchy. | |||
| 9378 | if (ObjCInterfaceDecl *rhsID = rhs->getInterfaceDecl()) { | |||
| 9379 | for (auto *I : lhs->quals()) { | |||
| 9380 | // when comparing an id<P> on lhs with a static type on rhs, | |||
| 9381 | // see if static class implements all of id's protocols, directly or | |||
| 9382 | // through its super class and categories. | |||
| 9383 | if (!rhsID->ClassImplementsProtocol(I, true)) | |||
| 9384 | return false; | |||
| 9385 | } | |||
| 9386 | } | |||
| 9387 | // If there are no qualifiers and no interface, we have an 'id'. | |||
| 9388 | return true; | |||
| 9389 | } | |||
| 9390 | // Both the right and left sides have qualifiers. | |||
| 9391 | for (auto *lhsProto : lhs->quals()) { | |||
| 9392 | bool match = false; | |||
| 9393 | ||||
| 9394 | // when comparing an id<P> on lhs with a static type on rhs, | |||
| 9395 | // see if static class implements all of id's protocols, directly or | |||
| 9396 | // through its super class and categories. | |||
| 9397 | for (auto *rhsProto : rhs->quals()) { | |||
| 9398 | if (ProtocolCompatibleWithProtocol(lhsProto, rhsProto) || | |||
| 9399 | (compare && ProtocolCompatibleWithProtocol(rhsProto, lhsProto))) { | |||
| 9400 | match = true; | |||
| 9401 | break; | |||
| 9402 | } | |||
| 9403 | } | |||
| 9404 | // If the RHS is a qualified interface pointer "NSString<P>*", | |||
| 9405 | // make sure we check the class hierarchy. | |||
| 9406 | if (ObjCInterfaceDecl *rhsID = rhs->getInterfaceDecl()) { | |||
| 9407 | for (auto *I : lhs->quals()) { | |||
| 9408 | // when comparing an id<P> on lhs with a static type on rhs, | |||
| 9409 | // see if static class implements all of id's protocols, directly or | |||
| 9410 | // through its super class and categories. | |||
| 9411 | if (rhsID->ClassImplementsProtocol(I, true)) { | |||
| 9412 | match = true; | |||
| 9413 | break; | |||
| 9414 | } | |||
| 9415 | } | |||
| 9416 | } | |||
| 9417 | if (!match) | |||
| 9418 | return false; | |||
| 9419 | } | |||
| 9420 | ||||
| 9421 | return true; | |||
| 9422 | } | |||
| 9423 | ||||
| 9424 | assert(rhs->isObjCQualifiedIdType() && "One of the LHS/RHS should be id<x>")(static_cast <bool> (rhs->isObjCQualifiedIdType() && "One of the LHS/RHS should be id<x>") ? void (0) : __assert_fail ("rhs->isObjCQualifiedIdType() && \"One of the LHS/RHS should be id<x>\"" , "clang/lib/AST/ASTContext.cpp", 9424, __extension__ __PRETTY_FUNCTION__ )); | |||
| 9425 | ||||
| 9426 | if (lhs->getInterfaceType()) { | |||
| 9427 | // If both the right and left sides have qualifiers. | |||
| 9428 | for (auto *lhsProto : lhs->quals()) { | |||
| 9429 | bool match = false; | |||
| 9430 | ||||
| 9431 | // when comparing an id<P> on rhs with a static type on lhs, | |||
| 9432 | // see if static class implements all of id's protocols, directly or | |||
| 9433 | // through its super class and categories. | |||
| 9434 | // First, lhs protocols in the qualifier list must be found, direct | |||
| 9435 | // or indirect in rhs's qualifier list or it is a mismatch. | |||
| 9436 | for (auto *rhsProto : rhs->quals()) { | |||
| 9437 | if (ProtocolCompatibleWithProtocol(lhsProto, rhsProto) || | |||
| 9438 | (compare && ProtocolCompatibleWithProtocol(rhsProto, lhsProto))) { | |||
| 9439 | match = true; | |||
| 9440 | break; | |||
| 9441 | } | |||
| 9442 | } | |||
| 9443 | if (!match) | |||
| 9444 | return false; | |||
| 9445 | } | |||
| 9446 | ||||
| 9447 | // Static class's protocols, or its super class or category protocols | |||
| 9448 | // must be found, direct or indirect in rhs's qualifier list or it is a mismatch. | |||
| 9449 | if (ObjCInterfaceDecl *lhsID = lhs->getInterfaceDecl()) { | |||
| 9450 | llvm::SmallPtrSet<ObjCProtocolDecl *, 8> LHSInheritedProtocols; | |||
| 9451 | CollectInheritedProtocols(lhsID, LHSInheritedProtocols); | |||
| 9452 | // This is rather dubious but matches gcc's behavior. If lhs has | |||
| 9453 | // no type qualifier and its class has no static protocol(s) | |||
| 9454 | // assume that it is mismatch. | |||
| 9455 | if (LHSInheritedProtocols.empty() && lhs->qual_empty()) | |||
| 9456 | return false; | |||
| 9457 | for (auto *lhsProto : LHSInheritedProtocols) { | |||
| 9458 | bool match = false; | |||
| 9459 | for (auto *rhsProto : rhs->quals()) { | |||
| 9460 | if (ProtocolCompatibleWithProtocol(lhsProto, rhsProto) || | |||
| 9461 | (compare && ProtocolCompatibleWithProtocol(rhsProto, lhsProto))) { | |||
| 9462 | match = true; | |||
| 9463 | break; | |||
| 9464 | } | |||
| 9465 | } | |||
| 9466 | if (!match) | |||
| 9467 | return false; | |||
| 9468 | } | |||
| 9469 | } | |||
| 9470 | return true; | |||
| 9471 | } | |||
| 9472 | return false; | |||
| 9473 | } | |||
| 9474 | ||||
| 9475 | /// canAssignObjCInterfaces - Return true if the two interface types are | |||
| 9476 | /// compatible for assignment from RHS to LHS. This handles validation of any | |||
| 9477 | /// protocol qualifiers on the LHS or RHS. | |||
| 9478 | bool ASTContext::canAssignObjCInterfaces(const ObjCObjectPointerType *LHSOPT, | |||
| 9479 | const ObjCObjectPointerType *RHSOPT) { | |||
| 9480 | const ObjCObjectType* LHS = LHSOPT->getObjectType(); | |||
| 9481 | const ObjCObjectType* RHS = RHSOPT->getObjectType(); | |||
| 9482 | ||||
| 9483 | // If either type represents the built-in 'id' type, return true. | |||
| 9484 | if (LHS->isObjCUnqualifiedId() || RHS->isObjCUnqualifiedId()) | |||
| 9485 | return true; | |||
| 9486 | ||||
| 9487 | // Function object that propagates a successful result or handles | |||
| 9488 | // __kindof types. | |||
| 9489 | auto finish = [&](bool succeeded) -> bool { | |||
| 9490 | if (succeeded) | |||
| 9491 | return true; | |||
| 9492 | ||||
| 9493 | if (!RHS->isKindOfType()) | |||
| 9494 | return false; | |||
| 9495 | ||||
| 9496 | // Strip off __kindof and protocol qualifiers, then check whether | |||
| 9497 | // we can assign the other way. | |||
| 9498 | return canAssignObjCInterfaces(RHSOPT->stripObjCKindOfTypeAndQuals(*this), | |||
| 9499 | LHSOPT->stripObjCKindOfTypeAndQuals(*this)); | |||
| 9500 | }; | |||
| 9501 | ||||
| 9502 | // Casts from or to id<P> are allowed when the other side has compatible | |||
| 9503 | // protocols. | |||
| 9504 | if (LHS->isObjCQualifiedId() || RHS->isObjCQualifiedId()) { | |||
| 9505 | return finish(ObjCQualifiedIdTypesAreCompatible(LHSOPT, RHSOPT, false)); | |||
| 9506 | } | |||
| 9507 | ||||
| 9508 | // Verify protocol compatibility for casts from Class<P1> to Class<P2>. | |||
| 9509 | if (LHS->isObjCQualifiedClass() && RHS->isObjCQualifiedClass()) { | |||
| 9510 | return finish(ObjCQualifiedClassTypesAreCompatible(LHSOPT, RHSOPT)); | |||
| 9511 | } | |||
| 9512 | ||||
| 9513 | // Casts from Class to Class<Foo>, or vice-versa, are allowed. | |||
| 9514 | if (LHS->isObjCClass() && RHS->isObjCClass()) { | |||
| 9515 | return true; | |||
| 9516 | } | |||
| 9517 | ||||
| 9518 | // If we have 2 user-defined types, fall into that path. | |||
| 9519 | if (LHS->getInterface() && RHS->getInterface()) { | |||
| 9520 | return finish(canAssignObjCInterfaces(LHS, RHS)); | |||
| 9521 | } | |||
| 9522 | ||||
| 9523 | return false; | |||
| 9524 | } | |||
| 9525 | ||||
| 9526 | /// canAssignObjCInterfacesInBlockPointer - This routine is specifically written | |||
| 9527 | /// for providing type-safety for objective-c pointers used to pass/return | |||
| 9528 | /// arguments in block literals. When passed as arguments, passing 'A*' where | |||
| 9529 | /// 'id' is expected is not OK. Passing 'Sub *" where 'Super *" is expected is | |||
| 9530 | /// not OK. For the return type, the opposite is not OK. | |||
| 9531 | bool ASTContext::canAssignObjCInterfacesInBlockPointer( | |||
| 9532 | const ObjCObjectPointerType *LHSOPT, | |||
| 9533 | const ObjCObjectPointerType *RHSOPT, | |||
| 9534 | bool BlockReturnType) { | |||
| 9535 | ||||
| 9536 | // Function object that propagates a successful result or handles | |||
| 9537 | // __kindof types. | |||
| 9538 | auto finish = [&](bool succeeded) -> bool { | |||
| 9539 | if (succeeded) | |||
| 9540 | return true; | |||
| 9541 | ||||
| 9542 | const ObjCObjectPointerType *Expected = BlockReturnType ? RHSOPT : LHSOPT; | |||
| 9543 | if (!Expected->isKindOfType()) | |||
| 9544 | return false; | |||
| 9545 | ||||
| 9546 | // Strip off __kindof and protocol qualifiers, then check whether | |||
| 9547 | // we can assign the other way. | |||
| 9548 | return canAssignObjCInterfacesInBlockPointer( | |||
| 9549 | RHSOPT->stripObjCKindOfTypeAndQuals(*this), | |||
| 9550 | LHSOPT->stripObjCKindOfTypeAndQuals(*this), | |||
| 9551 | BlockReturnType); | |||
| 9552 | }; | |||
| 9553 | ||||
| 9554 | if (RHSOPT->isObjCBuiltinType() || LHSOPT->isObjCIdType()) | |||
| 9555 | return true; | |||
| 9556 | ||||
| 9557 | if (LHSOPT->isObjCBuiltinType()) { | |||
| 9558 | return finish(RHSOPT->isObjCBuiltinType() || | |||
| 9559 | RHSOPT->isObjCQualifiedIdType()); | |||
| 9560 | } | |||
| 9561 | ||||
| 9562 | if (LHSOPT->isObjCQualifiedIdType() || RHSOPT->isObjCQualifiedIdType()) { | |||
| 9563 | if (getLangOpts().CompatibilityQualifiedIdBlockParamTypeChecking) | |||
| 9564 | // Use for block parameters previous type checking for compatibility. | |||
| 9565 | return finish(ObjCQualifiedIdTypesAreCompatible(LHSOPT, RHSOPT, false) || | |||
| 9566 | // Or corrected type checking as in non-compat mode. | |||
| 9567 | (!BlockReturnType && | |||
| 9568 | ObjCQualifiedIdTypesAreCompatible(RHSOPT, LHSOPT, false))); | |||
| 9569 | else | |||
| 9570 | return finish(ObjCQualifiedIdTypesAreCompatible( | |||
| 9571 | (BlockReturnType ? LHSOPT : RHSOPT), | |||
| 9572 | (BlockReturnType ? RHSOPT : LHSOPT), false)); | |||
| 9573 | } | |||
| 9574 | ||||
| 9575 | const ObjCInterfaceType* LHS = LHSOPT->getInterfaceType(); | |||
| 9576 | const ObjCInterfaceType* RHS = RHSOPT->getInterfaceType(); | |||
| 9577 | if (LHS && RHS) { // We have 2 user-defined types. | |||
| 9578 | if (LHS != RHS) { | |||
| 9579 | if (LHS->getDecl()->isSuperClassOf(RHS->getDecl())) | |||
| 9580 | return finish(BlockReturnType); | |||
| 9581 | if (RHS->getDecl()->isSuperClassOf(LHS->getDecl())) | |||
| 9582 | return finish(!BlockReturnType); | |||
| 9583 | } | |||
| 9584 | else | |||
| 9585 | return true; | |||
| 9586 | } | |||
| 9587 | return false; | |||
| 9588 | } | |||
| 9589 | ||||
| 9590 | /// Comparison routine for Objective-C protocols to be used with | |||
| 9591 | /// llvm::array_pod_sort. | |||
| 9592 | static int compareObjCProtocolsByName(ObjCProtocolDecl * const *lhs, | |||
| 9593 | ObjCProtocolDecl * const *rhs) { | |||
| 9594 | return (*lhs)->getName().compare((*rhs)->getName()); | |||
| 9595 | } | |||
| 9596 | ||||
| 9597 | /// getIntersectionOfProtocols - This routine finds the intersection of set | |||
| 9598 | /// of protocols inherited from two distinct objective-c pointer objects with | |||
| 9599 | /// the given common base. | |||
| 9600 | /// It is used to build composite qualifier list of the composite type of | |||
| 9601 | /// the conditional expression involving two objective-c pointer objects. | |||
| 9602 | static | |||
| 9603 | void getIntersectionOfProtocols(ASTContext &Context, | |||
| 9604 | const ObjCInterfaceDecl *CommonBase, | |||
| 9605 | const ObjCObjectPointerType *LHSOPT, | |||
| 9606 | const ObjCObjectPointerType *RHSOPT, | |||
| 9607 | SmallVectorImpl<ObjCProtocolDecl *> &IntersectionSet) { | |||
| 9608 | ||||
| 9609 | const ObjCObjectType* LHS = LHSOPT->getObjectType(); | |||
| 9610 | const ObjCObjectType* RHS = RHSOPT->getObjectType(); | |||
| 9611 | assert(LHS->getInterface() && "LHS must have an interface base")(static_cast <bool> (LHS->getInterface() && "LHS must have an interface base" ) ? void (0) : __assert_fail ("LHS->getInterface() && \"LHS must have an interface base\"" , "clang/lib/AST/ASTContext.cpp", 9611, __extension__ __PRETTY_FUNCTION__ )); | |||
| 9612 | assert(RHS->getInterface() && "RHS must have an interface base")(static_cast <bool> (RHS->getInterface() && "RHS must have an interface base" ) ? void (0) : __assert_fail ("RHS->getInterface() && \"RHS must have an interface base\"" , "clang/lib/AST/ASTContext.cpp", 9612, __extension__ __PRETTY_FUNCTION__ )); | |||
| 9613 | ||||
| 9614 | // Add all of the protocols for the LHS. | |||
| 9615 | llvm::SmallPtrSet<ObjCProtocolDecl *, 8> LHSProtocolSet; | |||
| 9616 | ||||
| 9617 | // Start with the protocol qualifiers. | |||
| 9618 | for (auto proto : LHS->quals()) { | |||
| 9619 | Context.CollectInheritedProtocols(proto, LHSProtocolSet); | |||
| 9620 | } | |||
| 9621 | ||||
| 9622 | // Also add the protocols associated with the LHS interface. | |||
| 9623 | Context.CollectInheritedProtocols(LHS->getInterface(), LHSProtocolSet); | |||
| 9624 | ||||
| 9625 | // Add all of the protocols for the RHS. | |||
| 9626 | llvm::SmallPtrSet<ObjCProtocolDecl *, 8> RHSProtocolSet; | |||
| 9627 | ||||
| 9628 | // Start with the protocol qualifiers. | |||
| 9629 | for (auto proto : RHS->quals()) { | |||
| 9630 | Context.CollectInheritedProtocols(proto, RHSProtocolSet); | |||
| 9631 | } | |||
| 9632 | ||||
| 9633 | // Also add the protocols associated with the RHS interface. | |||
| 9634 | Context.CollectInheritedProtocols(RHS->getInterface(), RHSProtocolSet); | |||
| 9635 | ||||
| 9636 | // Compute the intersection of the collected protocol sets. | |||
| 9637 | for (auto proto : LHSProtocolSet) { | |||
| 9638 | if (RHSProtocolSet.count(proto)) | |||
| 9639 | IntersectionSet.push_back(proto); | |||
| 9640 | } | |||
| 9641 | ||||
| 9642 | // Compute the set of protocols that is implied by either the common type or | |||
| 9643 | // the protocols within the intersection. | |||
| 9644 | llvm::SmallPtrSet<ObjCProtocolDecl *, 8> ImpliedProtocols; | |||
| 9645 | Context.CollectInheritedProtocols(CommonBase, ImpliedProtocols); | |||
| 9646 | ||||
| 9647 | // Remove any implied protocols from the list of inherited protocols. | |||
| 9648 | if (!ImpliedProtocols.empty()) { | |||
| 9649 | llvm::erase_if(IntersectionSet, [&](ObjCProtocolDecl *proto) -> bool { | |||
| 9650 | return ImpliedProtocols.contains(proto); | |||
| 9651 | }); | |||
| 9652 | } | |||
| 9653 | ||||
| 9654 | // Sort the remaining protocols by name. | |||
| 9655 | llvm::array_pod_sort(IntersectionSet.begin(), IntersectionSet.end(), | |||
| 9656 | compareObjCProtocolsByName); | |||
| 9657 | } | |||
| 9658 | ||||
| 9659 | /// Determine whether the first type is a subtype of the second. | |||
| 9660 | static bool canAssignObjCObjectTypes(ASTContext &ctx, QualType lhs, | |||
| 9661 | QualType rhs) { | |||
| 9662 | // Common case: two object pointers. | |||
| 9663 | const auto *lhsOPT = lhs->getAs<ObjCObjectPointerType>(); | |||
| 9664 | const auto *rhsOPT = rhs->getAs<ObjCObjectPointerType>(); | |||
| 9665 | if (lhsOPT && rhsOPT) | |||
| 9666 | return ctx.canAssignObjCInterfaces(lhsOPT, rhsOPT); | |||
| 9667 | ||||
| 9668 | // Two block pointers. | |||
| 9669 | const auto *lhsBlock = lhs->getAs<BlockPointerType>(); | |||
| 9670 | const auto *rhsBlock = rhs->getAs<BlockPointerType>(); | |||
| 9671 | if (lhsBlock && rhsBlock) | |||
| 9672 | return ctx.typesAreBlockPointerCompatible(lhs, rhs); | |||
| 9673 | ||||
| 9674 | // If either is an unqualified 'id' and the other is a block, it's | |||
| 9675 | // acceptable. | |||
| 9676 | if ((lhsOPT && lhsOPT->isObjCIdType() && rhsBlock) || | |||
| 9677 | (rhsOPT && rhsOPT->isObjCIdType() && lhsBlock)) | |||
| 9678 | return true; | |||
| 9679 | ||||
| 9680 | return false; | |||
| 9681 | } | |||
| 9682 | ||||
| 9683 | // Check that the given Objective-C type argument lists are equivalent. | |||
| 9684 | static bool sameObjCTypeArgs(ASTContext &ctx, | |||
| 9685 | const ObjCInterfaceDecl *iface, | |||
| 9686 | ArrayRef<QualType> lhsArgs, | |||
| 9687 | ArrayRef<QualType> rhsArgs, | |||
| 9688 | bool stripKindOf) { | |||
| 9689 | if (lhsArgs.size() != rhsArgs.size()) | |||
| 9690 | return false; | |||
| 9691 | ||||
| 9692 | ObjCTypeParamList *typeParams = iface->getTypeParamList(); | |||
| 9693 | for (unsigned i = 0, n = lhsArgs.size(); i != n; ++i) { | |||
| 9694 | if (ctx.hasSameType(lhsArgs[i], rhsArgs[i])) | |||
| 9695 | continue; | |||
| 9696 | ||||
| 9697 | switch (typeParams->begin()[i]->getVariance()) { | |||
| 9698 | case ObjCTypeParamVariance::Invariant: | |||
| 9699 | if (!stripKindOf || | |||
| 9700 | !ctx.hasSameType(lhsArgs[i].stripObjCKindOfType(ctx), | |||
| 9701 | rhsArgs[i].stripObjCKindOfType(ctx))) { | |||
| 9702 | return false; | |||
| 9703 | } | |||
| 9704 | break; | |||
| 9705 | ||||
| 9706 | case ObjCTypeParamVariance::Covariant: | |||
| 9707 | if (!canAssignObjCObjectTypes(ctx, lhsArgs[i], rhsArgs[i])) | |||
| 9708 | return false; | |||
| 9709 | break; | |||
| 9710 | ||||
| 9711 | case ObjCTypeParamVariance::Contravariant: | |||
| 9712 | if (!canAssignObjCObjectTypes(ctx, rhsArgs[i], lhsArgs[i])) | |||
| 9713 | return false; | |||
| 9714 | break; | |||
| 9715 | } | |||
| 9716 | } | |||
| 9717 | ||||
| 9718 | return true; | |||
| 9719 | } | |||
| 9720 | ||||
| 9721 | QualType ASTContext::areCommonBaseCompatible( | |||
| 9722 | const ObjCObjectPointerType *Lptr, | |||
| 9723 | const ObjCObjectPointerType *Rptr) { | |||
| 9724 | const ObjCObjectType *LHS = Lptr->getObjectType(); | |||
| 9725 | const ObjCObjectType *RHS = Rptr->getObjectType(); | |||
| 9726 | const ObjCInterfaceDecl* LDecl = LHS->getInterface(); | |||
| 9727 | const ObjCInterfaceDecl* RDecl = RHS->getInterface(); | |||
| 9728 | ||||
| 9729 | if (!LDecl || !RDecl) | |||
| 9730 | return {}; | |||
| 9731 | ||||
| 9732 | // When either LHS or RHS is a kindof type, we should return a kindof type. | |||
| 9733 | // For example, for common base of kindof(ASub1) and kindof(ASub2), we return | |||
| 9734 | // kindof(A). | |||
| 9735 | bool anyKindOf = LHS->isKindOfType() || RHS->isKindOfType(); | |||
| 9736 | ||||
| 9737 | // Follow the left-hand side up the class hierarchy until we either hit a | |||
| 9738 | // root or find the RHS. Record the ancestors in case we don't find it. | |||
| 9739 | llvm::SmallDenseMap<const ObjCInterfaceDecl *, const ObjCObjectType *, 4> | |||
| 9740 | LHSAncestors; | |||
| 9741 | while (true) { | |||
| 9742 | // Record this ancestor. We'll need this if the common type isn't in the | |||
| 9743 | // path from the LHS to the root. | |||
| 9744 | LHSAncestors[LHS->getInterface()->getCanonicalDecl()] = LHS; | |||
| 9745 | ||||
| 9746 | if (declaresSameEntity(LHS->getInterface(), RDecl)) { | |||
| 9747 | // Get the type arguments. | |||
| 9748 | ArrayRef<QualType> LHSTypeArgs = LHS->getTypeArgsAsWritten(); | |||
| 9749 | bool anyChanges = false; | |||
| 9750 | if (LHS->isSpecialized() && RHS->isSpecialized()) { | |||
| 9751 | // Both have type arguments, compare them. | |||
| 9752 | if (!sameObjCTypeArgs(*this, LHS->getInterface(), | |||
| 9753 | LHS->getTypeArgs(), RHS->getTypeArgs(), | |||
| 9754 | /*stripKindOf=*/true)) | |||
| 9755 | return {}; | |||
| 9756 | } else if (LHS->isSpecialized() != RHS->isSpecialized()) { | |||
| 9757 | // If only one has type arguments, the result will not have type | |||
| 9758 | // arguments. | |||
| 9759 | LHSTypeArgs = {}; | |||
| 9760 | anyChanges = true; | |||
| 9761 | } | |||
| 9762 | ||||
| 9763 | // Compute the intersection of protocols. | |||
| 9764 | SmallVector<ObjCProtocolDecl *, 8> Protocols; | |||
| 9765 | getIntersectionOfProtocols(*this, LHS->getInterface(), Lptr, Rptr, | |||
| 9766 | Protocols); | |||
| 9767 | if (!Protocols.empty()) | |||
| 9768 | anyChanges = true; | |||
| 9769 | ||||
| 9770 | // If anything in the LHS will have changed, build a new result type. | |||
| 9771 | // If we need to return a kindof type but LHS is not a kindof type, we | |||
| 9772 | // build a new result type. | |||
| 9773 | if (anyChanges || LHS->isKindOfType() != anyKindOf) { | |||
| 9774 | QualType Result = getObjCInterfaceType(LHS->getInterface()); | |||
| 9775 | Result = getObjCObjectType(Result, LHSTypeArgs, Protocols, | |||
| 9776 | anyKindOf || LHS->isKindOfType()); | |||
| 9777 | return getObjCObjectPointerType(Result); | |||
| 9778 | } | |||
| 9779 | ||||
| 9780 | return getObjCObjectPointerType(QualType(LHS, 0)); | |||
| 9781 | } | |||
| 9782 | ||||
| 9783 | // Find the superclass. | |||
| 9784 | QualType LHSSuperType = LHS->getSuperClassType(); | |||
| 9785 | if (LHSSuperType.isNull()) | |||
| 9786 | break; | |||
| 9787 | ||||
| 9788 | LHS = LHSSuperType->castAs<ObjCObjectType>(); | |||
| 9789 | } | |||
| 9790 | ||||
| 9791 | // We didn't find anything by following the LHS to its root; now check | |||
| 9792 | // the RHS against the cached set of ancestors. | |||
| 9793 | while (true) { | |||
| 9794 | auto KnownLHS = LHSAncestors.find(RHS->getInterface()->getCanonicalDecl()); | |||
| 9795 | if (KnownLHS != LHSAncestors.end()) { | |||
| 9796 | LHS = KnownLHS->second; | |||
| 9797 | ||||
| 9798 | // Get the type arguments. | |||
| 9799 | ArrayRef<QualType> RHSTypeArgs = RHS->getTypeArgsAsWritten(); | |||
| 9800 | bool anyChanges = false; | |||
| 9801 | if (LHS->isSpecialized() && RHS->isSpecialized()) { | |||
| 9802 | // Both have type arguments, compare them. | |||
| 9803 | if (!sameObjCTypeArgs(*this, LHS->getInterface(), | |||
| 9804 | LHS->getTypeArgs(), RHS->getTypeArgs(), | |||
| 9805 | /*stripKindOf=*/true)) | |||
| 9806 | return {}; | |||
| 9807 | } else if (LHS->isSpecialized() != RHS->isSpecialized()) { | |||
| 9808 | // If only one has type arguments, the result will not have type | |||
| 9809 | // arguments. | |||
| 9810 | RHSTypeArgs = {}; | |||
| 9811 | anyChanges = true; | |||
| 9812 | } | |||
| 9813 | ||||
| 9814 | // Compute the intersection of protocols. | |||
| 9815 | SmallVector<ObjCProtocolDecl *, 8> Protocols; | |||
| 9816 | getIntersectionOfProtocols(*this, RHS->getInterface(), Lptr, Rptr, | |||
| 9817 | Protocols); | |||
| 9818 | if (!Protocols.empty()) | |||
| 9819 | anyChanges = true; | |||
| 9820 | ||||
| 9821 | // If we need to return a kindof type but RHS is not a kindof type, we | |||
| 9822 | // build a new result type. | |||
| 9823 | if (anyChanges || RHS->isKindOfType() != anyKindOf) { | |||
| 9824 | QualType Result = getObjCInterfaceType(RHS->getInterface()); | |||
| 9825 | Result = getObjCObjectType(Result, RHSTypeArgs, Protocols, | |||
| 9826 | anyKindOf || RHS->isKindOfType()); | |||
| 9827 | return getObjCObjectPointerType(Result); | |||
| 9828 | } | |||
| 9829 | ||||
| 9830 | return getObjCObjectPointerType(QualType(RHS, 0)); | |||
| 9831 | } | |||
| 9832 | ||||
| 9833 | // Find the superclass of the RHS. | |||
| 9834 | QualType RHSSuperType = RHS->getSuperClassType(); | |||
| 9835 | if (RHSSuperType.isNull()) | |||
| 9836 | break; | |||
| 9837 | ||||
| 9838 | RHS = RHSSuperType->castAs<ObjCObjectType>(); | |||
| 9839 | } | |||
| 9840 | ||||
| 9841 | return {}; | |||
| 9842 | } | |||
| 9843 | ||||
| 9844 | bool ASTContext::canAssignObjCInterfaces(const ObjCObjectType *LHS, | |||
| 9845 | const ObjCObjectType *RHS) { | |||
| 9846 | assert(LHS->getInterface() && "LHS is not an interface type")(static_cast <bool> (LHS->getInterface() && "LHS is not an interface type" ) ? void (0) : __assert_fail ("LHS->getInterface() && \"LHS is not an interface type\"" , "clang/lib/AST/ASTContext.cpp", 9846, __extension__ __PRETTY_FUNCTION__ )); | |||
| 9847 | assert(RHS->getInterface() && "RHS is not an interface type")(static_cast <bool> (RHS->getInterface() && "RHS is not an interface type" ) ? void (0) : __assert_fail ("RHS->getInterface() && \"RHS is not an interface type\"" , "clang/lib/AST/ASTContext.cpp", 9847, __extension__ __PRETTY_FUNCTION__ )); | |||
| 9848 | ||||
| 9849 | // Verify that the base decls are compatible: the RHS must be a subclass of | |||
| 9850 | // the LHS. | |||
| 9851 | ObjCInterfaceDecl *LHSInterface = LHS->getInterface(); | |||
| 9852 | bool IsSuperClass = LHSInterface->isSuperClassOf(RHS->getInterface()); | |||
| 9853 | if (!IsSuperClass) | |||
| 9854 | return false; | |||
| 9855 | ||||
| 9856 | // If the LHS has protocol qualifiers, determine whether all of them are | |||
| 9857 | // satisfied by the RHS (i.e., the RHS has a superset of the protocols in the | |||
| 9858 | // LHS). | |||
| 9859 | if (LHS->getNumProtocols() > 0) { | |||
| 9860 | // OK if conversion of LHS to SuperClass results in narrowing of types | |||
| 9861 | // ; i.e., SuperClass may implement at least one of the protocols | |||
| 9862 | // in LHS's protocol list. Example, SuperObj<P1> = lhs<P1,P2> is ok. | |||
| 9863 | // But not SuperObj<P1,P2,P3> = lhs<P1,P2>. | |||
| 9864 | llvm::SmallPtrSet<ObjCProtocolDecl *, 8> SuperClassInheritedProtocols; | |||
| 9865 | CollectInheritedProtocols(RHS->getInterface(), SuperClassInheritedProtocols); | |||
| 9866 | // Also, if RHS has explicit quelifiers, include them for comparing with LHS's | |||
| 9867 | // qualifiers. | |||
| 9868 | for (auto *RHSPI : RHS->quals()) | |||
| 9869 | CollectInheritedProtocols(RHSPI, SuperClassInheritedProtocols); | |||
| 9870 | // If there is no protocols associated with RHS, it is not a match. | |||
| 9871 | if (SuperClassInheritedProtocols.empty()) | |||
| 9872 | return false; | |||
| 9873 | ||||
| 9874 | for (const auto *LHSProto : LHS->quals()) { | |||
| 9875 | bool SuperImplementsProtocol = false; | |||
| 9876 | for (auto *SuperClassProto : SuperClassInheritedProtocols) | |||
| 9877 | if (SuperClassProto->lookupProtocolNamed(LHSProto->getIdentifier())) { | |||
| 9878 | SuperImplementsProtocol = true; | |||
| 9879 | break; | |||
| 9880 | } | |||
| 9881 | if (!SuperImplementsProtocol) | |||
| 9882 | return false; | |||
| 9883 | } | |||
| 9884 | } | |||
| 9885 | ||||
| 9886 | // If the LHS is specialized, we may need to check type arguments. | |||
| 9887 | if (LHS->isSpecialized()) { | |||
| 9888 | // Follow the superclass chain until we've matched the LHS class in the | |||
| 9889 | // hierarchy. This substitutes type arguments through. | |||
| 9890 | const ObjCObjectType *RHSSuper = RHS; | |||
| 9891 | while (!declaresSameEntity(RHSSuper->getInterface(), LHSInterface)) | |||
| 9892 | RHSSuper = RHSSuper->getSuperClassType()->castAs<ObjCObjectType>(); | |||
| 9893 | ||||
| 9894 | // If the RHS is specializd, compare type arguments. | |||
| 9895 | if (RHSSuper->isSpecialized() && | |||
| 9896 | !sameObjCTypeArgs(*this, LHS->getInterface(), | |||
| 9897 | LHS->getTypeArgs(), RHSSuper->getTypeArgs(), | |||
| 9898 | /*stripKindOf=*/true)) { | |||
| 9899 | return false; | |||
| 9900 | } | |||
| 9901 | } | |||
| 9902 | ||||
| 9903 | return true; | |||
| 9904 | } | |||
| 9905 | ||||
| 9906 | bool ASTContext::areComparableObjCPointerTypes(QualType LHS, QualType RHS) { | |||
| 9907 | // get the "pointed to" types | |||
| 9908 | const auto *LHSOPT = LHS->getAs<ObjCObjectPointerType>(); | |||
| 9909 | const auto *RHSOPT = RHS->getAs<ObjCObjectPointerType>(); | |||
| 9910 | ||||
| 9911 | if (!LHSOPT || !RHSOPT) | |||
| 9912 | return false; | |||
| 9913 | ||||
| 9914 | return canAssignObjCInterfaces(LHSOPT, RHSOPT) || | |||
| 9915 | canAssignObjCInterfaces(RHSOPT, LHSOPT); | |||
| 9916 | } | |||
| 9917 | ||||
| 9918 | bool ASTContext::canBindObjCObjectType(QualType To, QualType From) { | |||
| 9919 | return canAssignObjCInterfaces( | |||
| 9920 | getObjCObjectPointerType(To)->castAs<ObjCObjectPointerType>(), | |||
| 9921 | getObjCObjectPointerType(From)->castAs<ObjCObjectPointerType>()); | |||
| 9922 | } | |||
| 9923 | ||||
| 9924 | /// typesAreCompatible - C99 6.7.3p9: For two qualified types to be compatible, | |||
| 9925 | /// both shall have the identically qualified version of a compatible type. | |||
| 9926 | /// C99 6.2.7p1: Two types have compatible types if their types are the | |||
| 9927 | /// same. See 6.7.[2,3,5] for additional rules. | |||
| 9928 | bool ASTContext::typesAreCompatible(QualType LHS, QualType RHS, | |||
| 9929 | bool CompareUnqualified) { | |||
| 9930 | if (getLangOpts().CPlusPlus) | |||
| 9931 | return hasSameType(LHS, RHS); | |||
| 9932 | ||||
| 9933 | return !mergeTypes(LHS, RHS, false, CompareUnqualified).isNull(); | |||
| 9934 | } | |||
| 9935 | ||||
| 9936 | bool ASTContext::propertyTypesAreCompatible(QualType LHS, QualType RHS) { | |||
| 9937 | return typesAreCompatible(LHS, RHS); | |||
| 9938 | } | |||
| 9939 | ||||
| 9940 | bool ASTContext::typesAreBlockPointerCompatible(QualType LHS, QualType RHS) { | |||
| 9941 | return !mergeTypes(LHS, RHS, true).isNull(); | |||
| 9942 | } | |||
| 9943 | ||||
| 9944 | /// mergeTransparentUnionType - if T is a transparent union type and a member | |||
| 9945 | /// of T is compatible with SubType, return the merged type, else return | |||
| 9946 | /// QualType() | |||
| 9947 | QualType ASTContext::mergeTransparentUnionType(QualType T, QualType SubType, | |||
| 9948 | bool OfBlockPointer, | |||
| 9949 | bool Unqualified) { | |||
| 9950 | if (const RecordType *UT = T->getAsUnionType()) { | |||
| 9951 | RecordDecl *UD = UT->getDecl(); | |||
| 9952 | if (UD->hasAttr<TransparentUnionAttr>()) { | |||
| 9953 | for (const auto *I : UD->fields()) { | |||
| 9954 | QualType ET = I->getType().getUnqualifiedType(); | |||
| 9955 | QualType MT = mergeTypes(ET, SubType, OfBlockPointer, Unqualified); | |||
| 9956 | if (!MT.isNull()) | |||
| 9957 | return MT; | |||
| 9958 | } | |||
| 9959 | } | |||
| 9960 | } | |||
| 9961 | ||||
| 9962 | return {}; | |||
| 9963 | } | |||
| 9964 | ||||
| 9965 | /// mergeFunctionParameterTypes - merge two types which appear as function | |||
| 9966 | /// parameter types | |||
| 9967 | QualType ASTContext::mergeFunctionParameterTypes(QualType lhs, QualType rhs, | |||
| 9968 | bool OfBlockPointer, | |||
| 9969 | bool Unqualified) { | |||
| 9970 | // GNU extension: two types are compatible if they appear as a function | |||
| 9971 | // argument, one of the types is a transparent union type and the other | |||
| 9972 | // type is compatible with a union member | |||
| 9973 | QualType lmerge = mergeTransparentUnionType(lhs, rhs, OfBlockPointer, | |||
| 9974 | Unqualified); | |||
| 9975 | if (!lmerge.isNull()) | |||
| 9976 | return lmerge; | |||
| 9977 | ||||
| 9978 | QualType rmerge = mergeTransparentUnionType(rhs, lhs, OfBlockPointer, | |||
| 9979 | Unqualified); | |||
| 9980 | if (!rmerge.isNull()) | |||
| 9981 | return rmerge; | |||
| 9982 | ||||
| 9983 | return mergeTypes(lhs, rhs, OfBlockPointer, Unqualified); | |||
| 9984 | } | |||
| 9985 | ||||
| 9986 | QualType ASTContext::mergeFunctionTypes(QualType lhs, QualType rhs, | |||
| 9987 | bool OfBlockPointer, bool Unqualified, | |||
| 9988 | bool AllowCXX) { | |||
| 9989 | const auto *lbase = lhs->castAs<FunctionType>(); | |||
| 9990 | const auto *rbase = rhs->castAs<FunctionType>(); | |||
| 9991 | const auto *lproto = dyn_cast<FunctionProtoType>(lbase); | |||
| 9992 | const auto *rproto = dyn_cast<FunctionProtoType>(rbase); | |||
| 9993 | bool allLTypes = true; | |||
| 9994 | bool allRTypes = true; | |||
| 9995 | ||||
| 9996 | // Check return type | |||
| 9997 | QualType retType; | |||
| 9998 | if (OfBlockPointer) { | |||
| 9999 | QualType RHS = rbase->getReturnType(); | |||
| 10000 | QualType LHS = lbase->getReturnType(); | |||
| 10001 | bool UnqualifiedResult = Unqualified; | |||
| 10002 | if (!UnqualifiedResult) | |||
| 10003 | UnqualifiedResult = (!RHS.hasQualifiers() && LHS.hasQualifiers()); | |||
| 10004 | retType = mergeTypes(LHS, RHS, true, UnqualifiedResult, true); | |||
| 10005 | } | |||
| 10006 | else | |||
| 10007 | retType = mergeTypes(lbase->getReturnType(), rbase->getReturnType(), false, | |||
| 10008 | Unqualified); | |||
| 10009 | if (retType.isNull()) | |||
| 10010 | return {}; | |||
| 10011 | ||||
| 10012 | if (Unqualified) | |||
| 10013 | retType = retType.getUnqualifiedType(); | |||
| 10014 | ||||
| 10015 | CanQualType LRetType = getCanonicalType(lbase->getReturnType()); | |||
| 10016 | CanQualType RRetType = getCanonicalType(rbase->getReturnType()); | |||
| 10017 | if (Unqualified) { | |||
| 10018 | LRetType = LRetType.getUnqualifiedType(); | |||
| 10019 | RRetType = RRetType.getUnqualifiedType(); | |||
| 10020 | } | |||
| 10021 | ||||
| 10022 | if (getCanonicalType(retType) != LRetType) | |||
| 10023 | allLTypes = false; | |||
| 10024 | if (getCanonicalType(retType) != RRetType) | |||
| 10025 | allRTypes = false; | |||
| 10026 | ||||
| 10027 | // FIXME: double check this | |||
| 10028 | // FIXME: should we error if lbase->getRegParmAttr() != 0 && | |||
| 10029 | // rbase->getRegParmAttr() != 0 && | |||
| 10030 | // lbase->getRegParmAttr() != rbase->getRegParmAttr()? | |||
| 10031 | FunctionType::ExtInfo lbaseInfo = lbase->getExtInfo(); | |||
| 10032 | FunctionType::ExtInfo rbaseInfo = rbase->getExtInfo(); | |||
| 10033 | ||||
| 10034 | // Compatible functions must have compatible calling conventions | |||
| 10035 | if (lbaseInfo.getCC() != rbaseInfo.getCC()) | |||
| 10036 | return {}; | |||
| 10037 | ||||
| 10038 | // Regparm is part of the calling convention. | |||
| 10039 | if (lbaseInfo.getHasRegParm() != rbaseInfo.getHasRegParm()) | |||
| 10040 | return {}; | |||
| 10041 | if (lbaseInfo.getRegParm() != rbaseInfo.getRegParm()) | |||
| 10042 | return {}; | |||
| 10043 | ||||
| 10044 | if (lbaseInfo.getProducesResult() != rbaseInfo.getProducesResult()) | |||
| 10045 | return {}; | |||
| 10046 | if (lbaseInfo.getNoCallerSavedRegs() != rbaseInfo.getNoCallerSavedRegs()) | |||
| 10047 | return {}; | |||
| 10048 | if (lbaseInfo.getNoCfCheck() != rbaseInfo.getNoCfCheck()) | |||
| 10049 | return {}; | |||
| 10050 | ||||
| 10051 | // FIXME: some uses, e.g. conditional exprs, really want this to be 'both'. | |||
| 10052 | bool NoReturn = lbaseInfo.getNoReturn() || rbaseInfo.getNoReturn(); | |||
| 10053 | ||||
| 10054 | if (lbaseInfo.getNoReturn() != NoReturn) | |||
| 10055 | allLTypes = false; | |||
| 10056 | if (rbaseInfo.getNoReturn() != NoReturn) | |||
| 10057 | allRTypes = false; | |||
| 10058 | ||||
| 10059 | FunctionType::ExtInfo einfo = lbaseInfo.withNoReturn(NoReturn); | |||
| 10060 | ||||
| 10061 | if (lproto && rproto) { // two C99 style function prototypes | |||
| 10062 | assert((AllowCXX ||(static_cast <bool> ((AllowCXX || (!lproto->hasExceptionSpec () && !rproto->hasExceptionSpec())) && "C++ shouldn't be here" ) ? void (0) : __assert_fail ("(AllowCXX || (!lproto->hasExceptionSpec() && !rproto->hasExceptionSpec())) && \"C++ shouldn't be here\"" , "clang/lib/AST/ASTContext.cpp", 10064, __extension__ __PRETTY_FUNCTION__ )) | |||
| 10063 | (!lproto->hasExceptionSpec() && !rproto->hasExceptionSpec())) &&(static_cast <bool> ((AllowCXX || (!lproto->hasExceptionSpec () && !rproto->hasExceptionSpec())) && "C++ shouldn't be here" ) ? void (0) : __assert_fail ("(AllowCXX || (!lproto->hasExceptionSpec() && !rproto->hasExceptionSpec())) && \"C++ shouldn't be here\"" , "clang/lib/AST/ASTContext.cpp", 10064, __extension__ __PRETTY_FUNCTION__ )) | |||
| 10064 | "C++ shouldn't be here")(static_cast <bool> ((AllowCXX || (!lproto->hasExceptionSpec () && !rproto->hasExceptionSpec())) && "C++ shouldn't be here" ) ? void (0) : __assert_fail ("(AllowCXX || (!lproto->hasExceptionSpec() && !rproto->hasExceptionSpec())) && \"C++ shouldn't be here\"" , "clang/lib/AST/ASTContext.cpp", 10064, __extension__ __PRETTY_FUNCTION__ )); | |||
| 10065 | // Compatible functions must have the same number of parameters | |||
| 10066 | if (lproto->getNumParams() != rproto->getNumParams()) | |||
| 10067 | return {}; | |||
| 10068 | ||||
| 10069 | // Variadic and non-variadic functions aren't compatible | |||
| 10070 | if (lproto->isVariadic() != rproto->isVariadic()) | |||
| 10071 | return {}; | |||
| 10072 | ||||
| 10073 | if (lproto->getMethodQuals() != rproto->getMethodQuals()) | |||
| 10074 | return {}; | |||
| 10075 | ||||
| 10076 | SmallVector<FunctionProtoType::ExtParameterInfo, 4> newParamInfos; | |||
| 10077 | bool canUseLeft, canUseRight; | |||
| 10078 | if (!mergeExtParameterInfo(lproto, rproto, canUseLeft, canUseRight, | |||
| 10079 | newParamInfos)) | |||
| 10080 | return {}; | |||
| 10081 | ||||
| 10082 | if (!canUseLeft) | |||
| 10083 | allLTypes = false; | |||
| 10084 | if (!canUseRight) | |||
| 10085 | allRTypes = false; | |||
| 10086 | ||||
| 10087 | // Check parameter type compatibility | |||
| 10088 | SmallVector<QualType, 10> types; | |||
| 10089 | for (unsigned i = 0, n = lproto->getNumParams(); i < n; i++) { | |||
| 10090 | QualType lParamType = lproto->getParamType(i).getUnqualifiedType(); | |||
| 10091 | QualType rParamType = rproto->getParamType(i).getUnqualifiedType(); | |||
| 10092 | QualType paramType = mergeFunctionParameterTypes( | |||
| 10093 | lParamType, rParamType, OfBlockPointer, Unqualified); | |||
| 10094 | if (paramType.isNull()) | |||
| 10095 | return {}; | |||
| 10096 | ||||
| 10097 | if (Unqualified) | |||
| 10098 | paramType = paramType.getUnqualifiedType(); | |||
| 10099 | ||||
| 10100 | types.push_back(paramType); | |||
| 10101 | if (Unqualified) { | |||
| 10102 | lParamType = lParamType.getUnqualifiedType(); | |||
| 10103 | rParamType = rParamType.getUnqualifiedType(); | |||
| 10104 | } | |||
| 10105 | ||||
| 10106 | if (getCanonicalType(paramType) != getCanonicalType(lParamType)) | |||
| 10107 | allLTypes = false; | |||
| 10108 | if (getCanonicalType(paramType) != getCanonicalType(rParamType)) | |||
| 10109 | allRTypes = false; | |||
| 10110 | } | |||
| 10111 | ||||
| 10112 | if (allLTypes) return lhs; | |||
| 10113 | if (allRTypes) return rhs; | |||
| 10114 | ||||
| 10115 | FunctionProtoType::ExtProtoInfo EPI = lproto->getExtProtoInfo(); | |||
| 10116 | EPI.ExtInfo = einfo; | |||
| 10117 | EPI.ExtParameterInfos = | |||
| 10118 | newParamInfos.empty() ? nullptr : newParamInfos.data(); | |||
| 10119 | return getFunctionType(retType, types, EPI); | |||
| 10120 | } | |||
| 10121 | ||||
| 10122 | if (lproto) allRTypes = false; | |||
| 10123 | if (rproto) allLTypes = false; | |||
| 10124 | ||||
| 10125 | const FunctionProtoType *proto = lproto ? lproto : rproto; | |||
| 10126 | if (proto) { | |||
| 10127 | assert((AllowCXX || !proto->hasExceptionSpec()) && "C++ shouldn't be here")(static_cast <bool> ((AllowCXX || !proto->hasExceptionSpec ()) && "C++ shouldn't be here") ? void (0) : __assert_fail ("(AllowCXX || !proto->hasExceptionSpec()) && \"C++ shouldn't be here\"" , "clang/lib/AST/ASTContext.cpp", 10127, __extension__ __PRETTY_FUNCTION__ )); | |||
| 10128 | if (proto->isVariadic()) | |||
| 10129 | return {}; | |||
| 10130 | // Check that the types are compatible with the types that | |||
| 10131 | // would result from default argument promotions (C99 6.7.5.3p15). | |||
| 10132 | // The only types actually affected are promotable integer | |||
| 10133 | // types and floats, which would be passed as a different | |||
| 10134 | // type depending on whether the prototype is visible. | |||
| 10135 | for (unsigned i = 0, n = proto->getNumParams(); i < n; ++i) { | |||
| 10136 | QualType paramTy = proto->getParamType(i); | |||
| 10137 | ||||
| 10138 | // Look at the converted type of enum types, since that is the type used | |||
| 10139 | // to pass enum values. | |||
| 10140 | if (const auto *Enum = paramTy->getAs<EnumType>()) { | |||
| 10141 | paramTy = Enum->getDecl()->getIntegerType(); | |||
| 10142 | if (paramTy.isNull()) | |||
| 10143 | return {}; | |||
| 10144 | } | |||
| 10145 | ||||
| 10146 | if (paramTy->isPromotableIntegerType() || | |||
| 10147 | getCanonicalType(paramTy).getUnqualifiedType() == FloatTy) | |||
| 10148 | return {}; | |||
| 10149 | } | |||
| 10150 | ||||
| 10151 | if (allLTypes) return lhs; | |||
| 10152 | if (allRTypes) return rhs; | |||
| 10153 | ||||
| 10154 | FunctionProtoType::ExtProtoInfo EPI = proto->getExtProtoInfo(); | |||
| 10155 | EPI.ExtInfo = einfo; | |||
| 10156 | return getFunctionType(retType, proto->getParamTypes(), EPI); | |||
| 10157 | } | |||
| 10158 | ||||
| 10159 | if (allLTypes) return lhs; | |||
| 10160 | if (allRTypes) return rhs; | |||
| 10161 | return getFunctionNoProtoType(retType, einfo); | |||
| 10162 | } | |||
| 10163 | ||||
| 10164 | /// Given that we have an enum type and a non-enum type, try to merge them. | |||
| 10165 | static QualType mergeEnumWithInteger(ASTContext &Context, const EnumType *ET, | |||
| 10166 | QualType other, bool isBlockReturnType) { | |||
| 10167 | // C99 6.7.2.2p4: Each enumerated type shall be compatible with char, | |||
| 10168 | // a signed integer type, or an unsigned integer type. | |||
| 10169 | // Compatibility is based on the underlying type, not the promotion | |||
| 10170 | // type. | |||
| 10171 | QualType underlyingType = ET->getDecl()->getIntegerType(); | |||
| 10172 | if (underlyingType.isNull()) | |||
| 10173 | return {}; | |||
| 10174 | if (Context.hasSameType(underlyingType, other)) | |||
| 10175 | return other; | |||
| 10176 | ||||
| 10177 | // In block return types, we're more permissive and accept any | |||
| 10178 | // integral type of the same size. | |||
| 10179 | if (isBlockReturnType && other->isIntegerType() && | |||
| 10180 | Context.getTypeSize(underlyingType) == Context.getTypeSize(other)) | |||
| 10181 | return other; | |||
| 10182 | ||||
| 10183 | return {}; | |||
| 10184 | } | |||
| 10185 | ||||
| 10186 | QualType ASTContext::mergeTypes(QualType LHS, QualType RHS, | |||
| 10187 | bool OfBlockPointer, | |||
| 10188 | bool Unqualified, bool BlockReturnType) { | |||
| 10189 | // For C++ we will not reach this code with reference types (see below), | |||
| 10190 | // for OpenMP variant call overloading we might. | |||
| 10191 | // | |||
| 10192 | // C++ [expr]: If an expression initially has the type "reference to T", the | |||
| 10193 | // type is adjusted to "T" prior to any further analysis, the expression | |||
| 10194 | // designates the object or function denoted by the reference, and the | |||
| 10195 | // expression is an lvalue unless the reference is an rvalue reference and | |||
| 10196 | // the expression is a function call (possibly inside parentheses). | |||
| 10197 | auto *LHSRefTy = LHS->getAs<ReferenceType>(); | |||
| 10198 | auto *RHSRefTy = RHS->getAs<ReferenceType>(); | |||
| 10199 | if (LangOpts.OpenMP && LHSRefTy && RHSRefTy && | |||
| 10200 | LHS->getTypeClass() == RHS->getTypeClass()) | |||
| 10201 | return mergeTypes(LHSRefTy->getPointeeType(), RHSRefTy->getPointeeType(), | |||
| 10202 | OfBlockPointer, Unqualified, BlockReturnType); | |||
| 10203 | if (LHSRefTy || RHSRefTy) | |||
| 10204 | return {}; | |||
| 10205 | ||||
| 10206 | if (Unqualified) { | |||
| 10207 | LHS = LHS.getUnqualifiedType(); | |||
| 10208 | RHS = RHS.getUnqualifiedType(); | |||
| 10209 | } | |||
| 10210 | ||||
| 10211 | QualType LHSCan = getCanonicalType(LHS), | |||
| 10212 | RHSCan = getCanonicalType(RHS); | |||
| 10213 | ||||
| 10214 | // If two types are identical, they are compatible. | |||
| 10215 | if (LHSCan == RHSCan) | |||
| 10216 | return LHS; | |||
| 10217 | ||||
| 10218 | // If the qualifiers are different, the types aren't compatible... mostly. | |||
| 10219 | Qualifiers LQuals = LHSCan.getLocalQualifiers(); | |||
| 10220 | Qualifiers RQuals = RHSCan.getLocalQualifiers(); | |||
| 10221 | if (LQuals != RQuals) { | |||
| 10222 | // If any of these qualifiers are different, we have a type | |||
| 10223 | // mismatch. | |||
| 10224 | if (LQuals.getCVRQualifiers() != RQuals.getCVRQualifiers() || | |||
| 10225 | LQuals.getAddressSpace() != RQuals.getAddressSpace() || | |||
| 10226 | LQuals.getObjCLifetime() != RQuals.getObjCLifetime() || | |||
| 10227 | LQuals.hasUnaligned() != RQuals.hasUnaligned()) | |||
| 10228 | return {}; | |||
| 10229 | ||||
| 10230 | // Exactly one GC qualifier difference is allowed: __strong is | |||
| 10231 | // okay if the other type has no GC qualifier but is an Objective | |||
| 10232 | // C object pointer (i.e. implicitly strong by default). We fix | |||
| 10233 | // this by pretending that the unqualified type was actually | |||
| 10234 | // qualified __strong. | |||
| 10235 | Qualifiers::GC GC_L = LQuals.getObjCGCAttr(); | |||
| 10236 | Qualifiers::GC GC_R = RQuals.getObjCGCAttr(); | |||
| 10237 | assert((GC_L != GC_R) && "unequal qualifier sets had only equal elements")(static_cast <bool> ((GC_L != GC_R) && "unequal qualifier sets had only equal elements" ) ? void (0) : __assert_fail ("(GC_L != GC_R) && \"unequal qualifier sets had only equal elements\"" , "clang/lib/AST/ASTContext.cpp", 10237, __extension__ __PRETTY_FUNCTION__ )); | |||
| 10238 | ||||
| 10239 | if (GC_L == Qualifiers::Weak || GC_R == Qualifiers::Weak) | |||
| 10240 | return {}; | |||
| 10241 | ||||
| 10242 | if (GC_L == Qualifiers::Strong && RHSCan->isObjCObjectPointerType()) { | |||
| 10243 | return mergeTypes(LHS, getObjCGCQualType(RHS, Qualifiers::Strong)); | |||
| 10244 | } | |||
| 10245 | if (GC_R == Qualifiers::Strong && LHSCan->isObjCObjectPointerType()) { | |||
| 10246 | return mergeTypes(getObjCGCQualType(LHS, Qualifiers::Strong), RHS); | |||
| 10247 | } | |||
| 10248 | return {}; | |||
| 10249 | } | |||
| 10250 | ||||
| 10251 | // Okay, qualifiers are equal. | |||
| 10252 | ||||
| 10253 | Type::TypeClass LHSClass = LHSCan->getTypeClass(); | |||
| 10254 | Type::TypeClass RHSClass = RHSCan->getTypeClass(); | |||
| 10255 | ||||
| 10256 | // We want to consider the two function types to be the same for these | |||
| 10257 | // comparisons, just force one to the other. | |||
| 10258 | if (LHSClass == Type::FunctionProto) LHSClass = Type::FunctionNoProto; | |||
| 10259 | if (RHSClass == Type::FunctionProto) RHSClass = Type::FunctionNoProto; | |||
| 10260 | ||||
| 10261 | // Same as above for arrays | |||
| 10262 | if (LHSClass == Type::VariableArray || LHSClass == Type::IncompleteArray) | |||
| 10263 | LHSClass = Type::ConstantArray; | |||
| 10264 | if (RHSClass == Type::VariableArray || RHSClass == Type::IncompleteArray) | |||
| 10265 | RHSClass = Type::ConstantArray; | |||
| 10266 | ||||
| 10267 | // ObjCInterfaces are just specialized ObjCObjects. | |||
| 10268 | if (LHSClass == Type::ObjCInterface) LHSClass = Type::ObjCObject; | |||
| 10269 | if (RHSClass == Type::ObjCInterface) RHSClass = Type::ObjCObject; | |||
| 10270 | ||||
| 10271 | // Canonicalize ExtVector -> Vector. | |||
| 10272 | if (LHSClass == Type::ExtVector) LHSClass = Type::Vector; | |||
| 10273 | if (RHSClass == Type::ExtVector) RHSClass = Type::Vector; | |||
| 10274 | ||||
| 10275 | // If the canonical type classes don't match. | |||
| 10276 | if (LHSClass != RHSClass) { | |||
| 10277 | // Note that we only have special rules for turning block enum | |||
| 10278 | // returns into block int returns, not vice-versa. | |||
| 10279 | if (const auto *ETy = LHS->getAs<EnumType>()) { | |||
| 10280 | return mergeEnumWithInteger(*this, ETy, RHS, false); | |||
| 10281 | } | |||
| 10282 | if (const EnumType* ETy = RHS->getAs<EnumType>()) { | |||
| 10283 | return mergeEnumWithInteger(*this, ETy, LHS, BlockReturnType); | |||
| 10284 | } | |||
| 10285 | // allow block pointer type to match an 'id' type. | |||
| 10286 | if (OfBlockPointer && !BlockReturnType) { | |||
| 10287 | if (LHS->isObjCIdType() && RHS->isBlockPointerType()) | |||
| 10288 | return LHS; | |||
| 10289 | if (RHS->isObjCIdType() && LHS->isBlockPointerType()) | |||
| 10290 | return RHS; | |||
| 10291 | } | |||
| 10292 | // Allow __auto_type to match anything; it merges to the type with more | |||
| 10293 | // information. | |||
| 10294 | if (const auto *AT = LHS->getAs<AutoType>()) { | |||
| 10295 | if (AT->isGNUAutoType()) | |||
| 10296 | return RHS; | |||
| 10297 | } | |||
| 10298 | if (const auto *AT = RHS->getAs<AutoType>()) { | |||
| 10299 | if (AT->isGNUAutoType()) | |||
| 10300 | return LHS; | |||
| 10301 | } | |||
| 10302 | return {}; | |||
| 10303 | } | |||
| 10304 | ||||
| 10305 | // The canonical type classes match. | |||
| 10306 | switch (LHSClass) { | |||
| 10307 | #define TYPE(Class, Base) | |||
| 10308 | #define ABSTRACT_TYPE(Class, Base) | |||
| 10309 | #define NON_CANONICAL_UNLESS_DEPENDENT_TYPE(Class, Base) case Type::Class: | |||
| 10310 | #define NON_CANONICAL_TYPE(Class, Base) case Type::Class: | |||
| 10311 | #define DEPENDENT_TYPE(Class, Base) case Type::Class: | |||
| 10312 | #include "clang/AST/TypeNodes.inc" | |||
| 10313 | llvm_unreachable("Non-canonical and dependent types shouldn't get here")::llvm::llvm_unreachable_internal("Non-canonical and dependent types shouldn't get here" , "clang/lib/AST/ASTContext.cpp", 10313); | |||
| 10314 | ||||
| 10315 | case Type::Auto: | |||
| 10316 | case Type::DeducedTemplateSpecialization: | |||
| 10317 | case Type::LValueReference: | |||
| 10318 | case Type::RValueReference: | |||
| 10319 | case Type::MemberPointer: | |||
| 10320 | llvm_unreachable("C++ should never be in mergeTypes")::llvm::llvm_unreachable_internal("C++ should never be in mergeTypes" , "clang/lib/AST/ASTContext.cpp", 10320); | |||
| 10321 | ||||
| 10322 | case Type::ObjCInterface: | |||
| 10323 | case Type::IncompleteArray: | |||
| 10324 | case Type::VariableArray: | |||
| 10325 | case Type::FunctionProto: | |||
| 10326 | case Type::ExtVector: | |||
| 10327 | llvm_unreachable("Types are eliminated above")::llvm::llvm_unreachable_internal("Types are eliminated above" , "clang/lib/AST/ASTContext.cpp", 10327); | |||
| 10328 | ||||
| 10329 | case Type::Pointer: | |||
| 10330 | { | |||
| 10331 | // Merge two pointer types, while trying to preserve typedef info | |||
| 10332 | QualType LHSPointee = LHS->castAs<PointerType>()->getPointeeType(); | |||
| 10333 | QualType RHSPointee = RHS->castAs<PointerType>()->getPointeeType(); | |||
| 10334 | if (Unqualified) { | |||
| 10335 | LHSPointee = LHSPointee.getUnqualifiedType(); | |||
| 10336 | RHSPointee = RHSPointee.getUnqualifiedType(); | |||
| 10337 | } | |||
| 10338 | QualType ResultType = mergeTypes(LHSPointee, RHSPointee, false, | |||
| 10339 | Unqualified); | |||
| 10340 | if (ResultType.isNull()) | |||
| 10341 | return {}; | |||
| 10342 | if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) | |||
| 10343 | return LHS; | |||
| 10344 | if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) | |||
| 10345 | return RHS; | |||
| 10346 | return getPointerType(ResultType); | |||
| 10347 | } | |||
| 10348 | case Type::BlockPointer: | |||
| 10349 | { | |||
| 10350 | // Merge two block pointer types, while trying to preserve typedef info | |||
| 10351 | QualType LHSPointee = LHS->castAs<BlockPointerType>()->getPointeeType(); | |||
| 10352 | QualType RHSPointee = RHS->castAs<BlockPointerType>()->getPointeeType(); | |||
| 10353 | if (Unqualified) { | |||
| 10354 | LHSPointee = LHSPointee.getUnqualifiedType(); | |||
| 10355 | RHSPointee = RHSPointee.getUnqualifiedType(); | |||
| 10356 | } | |||
| 10357 | if (getLangOpts().OpenCL) { | |||
| 10358 | Qualifiers LHSPteeQual = LHSPointee.getQualifiers(); | |||
| 10359 | Qualifiers RHSPteeQual = RHSPointee.getQualifiers(); | |||
| 10360 | // Blocks can't be an expression in a ternary operator (OpenCL v2.0 | |||
| 10361 | // 6.12.5) thus the following check is asymmetric. | |||
| 10362 | if (!LHSPteeQual.isAddressSpaceSupersetOf(RHSPteeQual)) | |||
| 10363 | return {}; | |||
| 10364 | LHSPteeQual.removeAddressSpace(); | |||
| 10365 | RHSPteeQual.removeAddressSpace(); | |||
| 10366 | LHSPointee = | |||
| 10367 | QualType(LHSPointee.getTypePtr(), LHSPteeQual.getAsOpaqueValue()); | |||
| 10368 | RHSPointee = | |||
| 10369 | QualType(RHSPointee.getTypePtr(), RHSPteeQual.getAsOpaqueValue()); | |||
| 10370 | } | |||
| 10371 | QualType ResultType = mergeTypes(LHSPointee, RHSPointee, OfBlockPointer, | |||
| 10372 | Unqualified); | |||
| 10373 | if (ResultType.isNull()) | |||
| 10374 | return {}; | |||
| 10375 | if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) | |||
| 10376 | return LHS; | |||
| 10377 | if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) | |||
| 10378 | return RHS; | |||
| 10379 | return getBlockPointerType(ResultType); | |||
| 10380 | } | |||
| 10381 | case Type::Atomic: | |||
| 10382 | { | |||
| 10383 | // Merge two pointer types, while trying to preserve typedef info | |||
| 10384 | QualType LHSValue = LHS->castAs<AtomicType>()->getValueType(); | |||
| 10385 | QualType RHSValue = RHS->castAs<AtomicType>()->getValueType(); | |||
| 10386 | if (Unqualified) { | |||
| 10387 | LHSValue = LHSValue.getUnqualifiedType(); | |||
| 10388 | RHSValue = RHSValue.getUnqualifiedType(); | |||
| 10389 | } | |||
| 10390 | QualType ResultType = mergeTypes(LHSValue, RHSValue, false, | |||
| 10391 | Unqualified); | |||
| 10392 | if (ResultType.isNull()) | |||
| 10393 | return {}; | |||
| 10394 | if (getCanonicalType(LHSValue) == getCanonicalType(ResultType)) | |||
| 10395 | return LHS; | |||
| 10396 | if (getCanonicalType(RHSValue) == getCanonicalType(ResultType)) | |||
| 10397 | return RHS; | |||
| 10398 | return getAtomicType(ResultType); | |||
| 10399 | } | |||
| 10400 | case Type::ConstantArray: | |||
| 10401 | { | |||
| 10402 | const ConstantArrayType* LCAT = getAsConstantArrayType(LHS); | |||
| 10403 | const ConstantArrayType* RCAT = getAsConstantArrayType(RHS); | |||
| 10404 | if (LCAT && RCAT && RCAT->getSize() != LCAT->getSize()) | |||
| 10405 | return {}; | |||
| 10406 | ||||
| 10407 | QualType LHSElem = getAsArrayType(LHS)->getElementType(); | |||
| 10408 | QualType RHSElem = getAsArrayType(RHS)->getElementType(); | |||
| 10409 | if (Unqualified) { | |||
| 10410 | LHSElem = LHSElem.getUnqualifiedType(); | |||
| 10411 | RHSElem = RHSElem.getUnqualifiedType(); | |||
| 10412 | } | |||
| 10413 | ||||
| 10414 | QualType ResultType = mergeTypes(LHSElem, RHSElem, false, Unqualified); | |||
| 10415 | if (ResultType.isNull()) | |||
| 10416 | return {}; | |||
| 10417 | ||||
| 10418 | const VariableArrayType* LVAT = getAsVariableArrayType(LHS); | |||
| 10419 | const VariableArrayType* RVAT = getAsVariableArrayType(RHS); | |||
| 10420 | ||||
| 10421 | // If either side is a variable array, and both are complete, check whether | |||
| 10422 | // the current dimension is definite. | |||
| 10423 | if (LVAT || RVAT) { | |||
| 10424 | auto SizeFetch = [this](const VariableArrayType* VAT, | |||
| 10425 | const ConstantArrayType* CAT) | |||
| 10426 | -> std::pair<bool,llvm::APInt> { | |||
| 10427 | if (VAT) { | |||
| 10428 | Optional<llvm::APSInt> TheInt; | |||
| 10429 | Expr *E = VAT->getSizeExpr(); | |||
| 10430 | if (E && (TheInt = E->getIntegerConstantExpr(*this))) | |||
| 10431 | return std::make_pair(true, *TheInt); | |||
| 10432 | return std::make_pair(false, llvm::APSInt()); | |||
| 10433 | } | |||
| 10434 | if (CAT) | |||
| 10435 | return std::make_pair(true, CAT->getSize()); | |||
| 10436 | return std::make_pair(false, llvm::APInt()); | |||
| 10437 | }; | |||
| 10438 | ||||
| 10439 | bool HaveLSize, HaveRSize; | |||
| 10440 | llvm::APInt LSize, RSize; | |||
| 10441 | std::tie(HaveLSize, LSize) = SizeFetch(LVAT, LCAT); | |||
| 10442 | std::tie(HaveRSize, RSize) = SizeFetch(RVAT, RCAT); | |||
| 10443 | if (HaveLSize && HaveRSize && !llvm::APInt::isSameValue(LSize, RSize)) | |||
| 10444 | return {}; // Definite, but unequal, array dimension | |||
| 10445 | } | |||
| 10446 | ||||
| 10447 | if (LCAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) | |||
| 10448 | return LHS; | |||
| 10449 | if (RCAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) | |||
| 10450 | return RHS; | |||
| 10451 | if (LCAT) | |||
| 10452 | return getConstantArrayType(ResultType, LCAT->getSize(), | |||
| 10453 | LCAT->getSizeExpr(), | |||
| 10454 | ArrayType::ArraySizeModifier(), 0); | |||
| 10455 | if (RCAT) | |||
| 10456 | return getConstantArrayType(ResultType, RCAT->getSize(), | |||
| 10457 | RCAT->getSizeExpr(), | |||
| 10458 | ArrayType::ArraySizeModifier(), 0); | |||
| 10459 | if (LVAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) | |||
| 10460 | return LHS; | |||
| 10461 | if (RVAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) | |||
| 10462 | return RHS; | |||
| 10463 | if (LVAT) { | |||
| 10464 | // FIXME: This isn't correct! But tricky to implement because | |||
| 10465 | // the array's size has to be the size of LHS, but the type | |||
| 10466 | // has to be different. | |||
| 10467 | return LHS; | |||
| 10468 | } | |||
| 10469 | if (RVAT) { | |||
| 10470 | // FIXME: This isn't correct! But tricky to implement because | |||
| 10471 | // the array's size has to be the size of RHS, but the type | |||
| 10472 | // has to be different. | |||
| 10473 | return RHS; | |||
| 10474 | } | |||
| 10475 | if (getCanonicalType(LHSElem) == getCanonicalType(ResultType)) return LHS; | |||
| 10476 | if (getCanonicalType(RHSElem) == getCanonicalType(ResultType)) return RHS; | |||
| 10477 | return getIncompleteArrayType(ResultType, | |||
| 10478 | ArrayType::ArraySizeModifier(), 0); | |||
| 10479 | } | |||
| 10480 | case Type::FunctionNoProto: | |||
| 10481 | return mergeFunctionTypes(LHS, RHS, OfBlockPointer, Unqualified); | |||
| 10482 | case Type::Record: | |||
| 10483 | case Type::Enum: | |||
| 10484 | return {}; | |||
| 10485 | case Type::Builtin: | |||
| 10486 | // Only exactly equal builtin types are compatible, which is tested above. | |||
| 10487 | return {}; | |||
| 10488 | case Type::Complex: | |||
| 10489 | // Distinct complex types are incompatible. | |||
| 10490 | return {}; | |||
| 10491 | case Type::Vector: | |||
| 10492 | // FIXME: The merged type should be an ExtVector! | |||
| 10493 | if (areCompatVectorTypes(LHSCan->castAs<VectorType>(), | |||
| 10494 | RHSCan->castAs<VectorType>())) | |||
| 10495 | return LHS; | |||
| 10496 | return {}; | |||
| 10497 | case Type::ConstantMatrix: | |||
| 10498 | if (areCompatMatrixTypes(LHSCan->castAs<ConstantMatrixType>(), | |||
| 10499 | RHSCan->castAs<ConstantMatrixType>())) | |||
| 10500 | return LHS; | |||
| 10501 | return {}; | |||
| 10502 | case Type::ObjCObject: { | |||
| 10503 | // Check if the types are assignment compatible. | |||
| 10504 | // FIXME: This should be type compatibility, e.g. whether | |||
| 10505 | // "LHS x; RHS x;" at global scope is legal. | |||
| 10506 | if (canAssignObjCInterfaces(LHS->castAs<ObjCObjectType>(), | |||
| 10507 | RHS->castAs<ObjCObjectType>())) | |||
| 10508 | return LHS; | |||
| 10509 | return {}; | |||
| 10510 | } | |||
| 10511 | case Type::ObjCObjectPointer: | |||
| 10512 | if (OfBlockPointer) { | |||
| 10513 | if (canAssignObjCInterfacesInBlockPointer( | |||
| 10514 | LHS->castAs<ObjCObjectPointerType>(), | |||
| 10515 | RHS->castAs<ObjCObjectPointerType>(), BlockReturnType)) | |||
| 10516 | return LHS; | |||
| 10517 | return {}; | |||
| 10518 | } | |||
| 10519 | if (canAssignObjCInterfaces(LHS->castAs<ObjCObjectPointerType>(), | |||
| 10520 | RHS->castAs<ObjCObjectPointerType>())) | |||
| 10521 | return LHS; | |||
| 10522 | return {}; | |||
| 10523 | case Type::Pipe: | |||
| 10524 | assert(LHS != RHS &&(static_cast <bool> (LHS != RHS && "Equivalent pipe types should have already been handled!" ) ? void (0) : __assert_fail ("LHS != RHS && \"Equivalent pipe types should have already been handled!\"" , "clang/lib/AST/ASTContext.cpp", 10525, __extension__ __PRETTY_FUNCTION__ )) | |||
| 10525 | "Equivalent pipe types should have already been handled!")(static_cast <bool> (LHS != RHS && "Equivalent pipe types should have already been handled!" ) ? void (0) : __assert_fail ("LHS != RHS && \"Equivalent pipe types should have already been handled!\"" , "clang/lib/AST/ASTContext.cpp", 10525, __extension__ __PRETTY_FUNCTION__ )); | |||
| 10526 | return {}; | |||
| 10527 | case Type::BitInt: { | |||
| 10528 | // Merge two bit-precise int types, while trying to preserve typedef info. | |||
| 10529 | bool LHSUnsigned = LHS->castAs<BitIntType>()->isUnsigned(); | |||
| 10530 | bool RHSUnsigned = RHS->castAs<BitIntType>()->isUnsigned(); | |||
| 10531 | unsigned LHSBits = LHS->castAs<BitIntType>()->getNumBits(); | |||
| 10532 | unsigned RHSBits = RHS->castAs<BitIntType>()->getNumBits(); | |||
| 10533 | ||||
| 10534 | // Like unsigned/int, shouldn't have a type if they don't match. | |||
| 10535 | if (LHSUnsigned != RHSUnsigned) | |||
| 10536 | return {}; | |||
| 10537 | ||||
| 10538 | if (LHSBits != RHSBits) | |||
| 10539 | return {}; | |||
| 10540 | return LHS; | |||
| 10541 | } | |||
| 10542 | } | |||
| 10543 | ||||
| 10544 | llvm_unreachable("Invalid Type::Class!")::llvm::llvm_unreachable_internal("Invalid Type::Class!", "clang/lib/AST/ASTContext.cpp" , 10544); | |||
| 10545 | } | |||
| 10546 | ||||
| 10547 | bool ASTContext::mergeExtParameterInfo( | |||
| 10548 | const FunctionProtoType *FirstFnType, const FunctionProtoType *SecondFnType, | |||
| 10549 | bool &CanUseFirst, bool &CanUseSecond, | |||
| 10550 | SmallVectorImpl<FunctionProtoType::ExtParameterInfo> &NewParamInfos) { | |||
| 10551 | assert(NewParamInfos.empty() && "param info list not empty")(static_cast <bool> (NewParamInfos.empty() && "param info list not empty" ) ? void (0) : __assert_fail ("NewParamInfos.empty() && \"param info list not empty\"" , "clang/lib/AST/ASTContext.cpp", 10551, __extension__ __PRETTY_FUNCTION__ )); | |||
| 10552 | CanUseFirst = CanUseSecond = true; | |||
| 10553 | bool FirstHasInfo = FirstFnType->hasExtParameterInfos(); | |||
| 10554 | bool SecondHasInfo = SecondFnType->hasExtParameterInfos(); | |||
| 10555 | ||||
| 10556 | // Fast path: if the first type doesn't have ext parameter infos, | |||
| 10557 | // we match if and only if the second type also doesn't have them. | |||
| 10558 | if (!FirstHasInfo && !SecondHasInfo) | |||
| 10559 | return true; | |||
| 10560 | ||||
| 10561 | bool NeedParamInfo = false; | |||
| 10562 | size_t E = FirstHasInfo ? FirstFnType->getExtParameterInfos().size() | |||
| 10563 | : SecondFnType->getExtParameterInfos().size(); | |||
| 10564 | ||||
| 10565 | for (size_t I = 0; I < E; ++I) { | |||
| 10566 | FunctionProtoType::ExtParameterInfo FirstParam, SecondParam; | |||
| 10567 | if (FirstHasInfo) | |||
| 10568 | FirstParam = FirstFnType->getExtParameterInfo(I); | |||
| 10569 | if (SecondHasInfo) | |||
| 10570 | SecondParam = SecondFnType->getExtParameterInfo(I); | |||
| 10571 | ||||
| 10572 | // Cannot merge unless everything except the noescape flag matches. | |||
| 10573 | if (FirstParam.withIsNoEscape(false) != SecondParam.withIsNoEscape(false)) | |||
| 10574 | return false; | |||
| 10575 | ||||
| 10576 | bool FirstNoEscape = FirstParam.isNoEscape(); | |||
| 10577 | bool SecondNoEscape = SecondParam.isNoEscape(); | |||
| 10578 | bool IsNoEscape = FirstNoEscape && SecondNoEscape; | |||
| 10579 | NewParamInfos.push_back(FirstParam.withIsNoEscape(IsNoEscape)); | |||
| 10580 | if (NewParamInfos.back().getOpaqueValue()) | |||
| 10581 | NeedParamInfo = true; | |||
| 10582 | if (FirstNoEscape != IsNoEscape) | |||
| 10583 | CanUseFirst = false; | |||
| 10584 | if (SecondNoEscape != IsNoEscape) | |||
| 10585 | CanUseSecond = false; | |||
| 10586 | } | |||
| 10587 | ||||
| 10588 | if (!NeedParamInfo) | |||
| 10589 | NewParamInfos.clear(); | |||
| 10590 | ||||
| 10591 | return true; | |||
| 10592 | } | |||
| 10593 | ||||
| 10594 | void ASTContext::ResetObjCLayout(const ObjCContainerDecl *CD) { | |||
| 10595 | ObjCLayouts[CD] = nullptr; | |||
| 10596 | } | |||
| 10597 | ||||
| 10598 | /// mergeObjCGCQualifiers - This routine merges ObjC's GC attribute of 'LHS' and | |||
| 10599 | /// 'RHS' attributes and returns the merged version; including for function | |||
| 10600 | /// return types. | |||
| 10601 | QualType ASTContext::mergeObjCGCQualifiers(QualType LHS, QualType RHS) { | |||
| 10602 | QualType LHSCan = getCanonicalType(LHS), | |||
| 10603 | RHSCan = getCanonicalType(RHS); | |||
| 10604 | // If two types are identical, they are compatible. | |||
| 10605 | if (LHSCan == RHSCan) | |||
| 10606 | return LHS; | |||
| 10607 | if (RHSCan->isFunctionType()) { | |||
| 10608 | if (!LHSCan->isFunctionType()) | |||
| 10609 | return {}; | |||
| 10610 | QualType OldReturnType = | |||
| 10611 | cast<FunctionType>(RHSCan.getTypePtr())->getReturnType(); | |||
| 10612 | QualType NewReturnType = | |||
| 10613 | cast<FunctionType>(LHSCan.getTypePtr())->getReturnType(); | |||
| 10614 | QualType ResReturnType = | |||
| 10615 | mergeObjCGCQualifiers(NewReturnType, OldReturnType); | |||
| 10616 | if (ResReturnType.isNull()) | |||
| 10617 | return {}; | |||
| 10618 | if (ResReturnType == NewReturnType || ResReturnType == OldReturnType) { | |||
| 10619 | // id foo(); ... __strong id foo(); or: __strong id foo(); ... id foo(); | |||
| 10620 | // In either case, use OldReturnType to build the new function type. | |||
| 10621 | const auto *F = LHS->castAs<FunctionType>(); | |||
| 10622 | if (const auto *FPT = cast<FunctionProtoType>(F)) { | |||
| 10623 | FunctionProtoType::ExtProtoInfo EPI = FPT->getExtProtoInfo(); | |||
| 10624 | EPI.ExtInfo = getFunctionExtInfo(LHS); | |||
| 10625 | QualType ResultType = | |||
| 10626 | getFunctionType(OldReturnType, FPT->getParamTypes(), EPI); | |||
| 10627 | return ResultType; | |||
| 10628 | } | |||
| 10629 | } | |||
| 10630 | return {}; | |||
| 10631 | } | |||
| 10632 | ||||
| 10633 | // If the qualifiers are different, the types can still be merged. | |||
| 10634 | Qualifiers LQuals = LHSCan.getLocalQualifiers(); | |||
| 10635 | Qualifiers RQuals = RHSCan.getLocalQualifiers(); | |||
| 10636 | if (LQuals != RQuals) { | |||
| 10637 | // If any of these qualifiers are different, we have a type mismatch. | |||
| 10638 | if (LQuals.getCVRQualifiers() != RQuals.getCVRQualifiers() || | |||
| 10639 | LQuals.getAddressSpace() != RQuals.getAddressSpace()) | |||
| 10640 | return {}; | |||
| 10641 | ||||
| 10642 | // Exactly one GC qualifier difference is allowed: __strong is | |||
| 10643 | // okay if the other type has no GC qualifier but is an Objective | |||
| 10644 | // C object pointer (i.e. implicitly strong by default). We fix | |||
| 10645 | // this by pretending that the unqualified type was actually | |||
| 10646 | // qualified __strong. | |||
| 10647 | Qualifiers::GC GC_L = LQuals.getObjCGCAttr(); | |||
| 10648 | Qualifiers::GC GC_R = RQuals.getObjCGCAttr(); | |||
| 10649 | assert((GC_L != GC_R) && "unequal qualifier sets had only equal elements")(static_cast <bool> ((GC_L != GC_R) && "unequal qualifier sets had only equal elements" ) ? void (0) : __assert_fail ("(GC_L != GC_R) && \"unequal qualifier sets had only equal elements\"" , "clang/lib/AST/ASTContext.cpp", 10649, __extension__ __PRETTY_FUNCTION__ )); | |||
| 10650 | ||||
| 10651 | if (GC_L == Qualifiers::Weak || GC_R == Qualifiers::Weak) | |||
| 10652 | return {}; | |||
| 10653 | ||||
| 10654 | if (GC_L == Qualifiers::Strong) | |||
| 10655 | return LHS; | |||
| 10656 | if (GC_R == Qualifiers::Strong) | |||
| 10657 | return RHS; | |||
| 10658 | return {}; | |||
| 10659 | } | |||
| 10660 | ||||
| 10661 | if (LHSCan->isObjCObjectPointerType() && RHSCan->isObjCObjectPointerType()) { | |||
| 10662 | QualType LHSBaseQT = LHS->castAs<ObjCObjectPointerType>()->getPointeeType(); | |||
| 10663 | QualType RHSBaseQT = RHS->castAs<ObjCObjectPointerType>()->getPointeeType(); | |||
| 10664 | QualType ResQT = mergeObjCGCQualifiers(LHSBaseQT, RHSBaseQT); | |||
| 10665 | if (ResQT == LHSBaseQT) | |||
| 10666 | return LHS; | |||
| 10667 | if (ResQT == RHSBaseQT) | |||
| 10668 | return RHS; | |||
| 10669 | } | |||
| 10670 | return {}; | |||
| 10671 | } | |||
| 10672 | ||||
| 10673 | //===----------------------------------------------------------------------===// | |||
| 10674 | // Integer Predicates | |||
| 10675 | //===----------------------------------------------------------------------===// | |||
| 10676 | ||||
| 10677 | unsigned ASTContext::getIntWidth(QualType T) const { | |||
| 10678 | if (const auto *ET = T->getAs<EnumType>()) | |||
| 10679 | T = ET->getDecl()->getIntegerType(); | |||
| 10680 | if (T->isBooleanType()) | |||
| 10681 | return 1; | |||
| 10682 | if (const auto *EIT = T->getAs<BitIntType>()) | |||
| 10683 | return EIT->getNumBits(); | |||
| 10684 | // For builtin types, just use the standard type sizing method | |||
| 10685 | return (unsigned)getTypeSize(T); | |||
| 10686 | } | |||
| 10687 | ||||
| 10688 | QualType ASTContext::getCorrespondingUnsignedType(QualType T) const { | |||
| 10689 | assert((T->hasSignedIntegerRepresentation() || T->isSignedFixedPointType()) &&(static_cast <bool> ((T->hasSignedIntegerRepresentation () || T->isSignedFixedPointType()) && "Unexpected type" ) ? void (0) : __assert_fail ("(T->hasSignedIntegerRepresentation() || T->isSignedFixedPointType()) && \"Unexpected type\"" , "clang/lib/AST/ASTContext.cpp", 10690, __extension__ __PRETTY_FUNCTION__ )) | |||
| 10690 | "Unexpected type")(static_cast <bool> ((T->hasSignedIntegerRepresentation () || T->isSignedFixedPointType()) && "Unexpected type" ) ? void (0) : __assert_fail ("(T->hasSignedIntegerRepresentation() || T->isSignedFixedPointType()) && \"Unexpected type\"" , "clang/lib/AST/ASTContext.cpp", 10690, __extension__ __PRETTY_FUNCTION__ )); | |||
| 10691 | ||||
| 10692 | // Turn <4 x signed int> -> <4 x unsigned int> | |||
| 10693 | if (const auto *VTy = T->getAs<VectorType>()) | |||
| 10694 | return getVectorType(getCorrespondingUnsignedType(VTy->getElementType()), | |||
| 10695 | VTy->getNumElements(), VTy->getVectorKind()); | |||
| 10696 | ||||
| 10697 | // For _BitInt, return an unsigned _BitInt with same width. | |||
| 10698 | if (const auto *EITy = T->getAs<BitIntType>()) | |||
| 10699 | return getBitIntType(/*Unsigned=*/true, EITy->getNumBits()); | |||
| 10700 | ||||
| 10701 | // For enums, get the underlying integer type of the enum, and let the general | |||
| 10702 | // integer type signchanging code handle it. | |||
| 10703 | if (const auto *ETy = T->getAs<EnumType>()) | |||
| 10704 | T = ETy->getDecl()->getIntegerType(); | |||
| 10705 | ||||
| 10706 | switch (T->castAs<BuiltinType>()->getKind()) { | |||
| 10707 | case BuiltinType::Char_S: | |||
| 10708 | case BuiltinType::SChar: | |||
| 10709 | return UnsignedCharTy; | |||
| 10710 | case BuiltinType::Short: | |||
| 10711 | return UnsignedShortTy; | |||
| 10712 | case BuiltinType::Int: | |||
| 10713 | return UnsignedIntTy; | |||
| 10714 | case BuiltinType::Long: | |||
| 10715 | return UnsignedLongTy; | |||
| 10716 | case BuiltinType::LongLong: | |||
| 10717 | return UnsignedLongLongTy; | |||
| 10718 | case BuiltinType::Int128: | |||
| 10719 | return UnsignedInt128Ty; | |||
| 10720 | // wchar_t is special. It is either signed or not, but when it's signed, | |||
| 10721 | // there's no matching "unsigned wchar_t". Therefore we return the unsigned | |||
| 10722 | // version of it's underlying type instead. | |||
| 10723 | case BuiltinType::WChar_S: | |||
| 10724 | return getUnsignedWCharType(); | |||
| 10725 | ||||
| 10726 | case BuiltinType::ShortAccum: | |||
| 10727 | return UnsignedShortAccumTy; | |||
| 10728 | case BuiltinType::Accum: | |||
| 10729 | return UnsignedAccumTy; | |||
| 10730 | case BuiltinType::LongAccum: | |||
| 10731 | return UnsignedLongAccumTy; | |||
| 10732 | case BuiltinType::SatShortAccum: | |||
| 10733 | return SatUnsignedShortAccumTy; | |||
| 10734 | case BuiltinType::SatAccum: | |||
| 10735 | return SatUnsignedAccumTy; | |||
| 10736 | case BuiltinType::SatLongAccum: | |||
| 10737 | return SatUnsignedLongAccumTy; | |||
| 10738 | case BuiltinType::ShortFract: | |||
| 10739 | return UnsignedShortFractTy; | |||
| 10740 | case BuiltinType::Fract: | |||
| 10741 | return UnsignedFractTy; | |||
| 10742 | case BuiltinType::LongFract: | |||
| 10743 | return UnsignedLongFractTy; | |||
| 10744 | case BuiltinType::SatShortFract: | |||
| 10745 | return SatUnsignedShortFractTy; | |||
| 10746 | case BuiltinType::SatFract: | |||
| 10747 | return SatUnsignedFractTy; | |||
| 10748 | case BuiltinType::SatLongFract: | |||
| 10749 | return SatUnsignedLongFractTy; | |||
| 10750 | default: | |||
| 10751 | llvm_unreachable("Unexpected signed integer or fixed point type")::llvm::llvm_unreachable_internal("Unexpected signed integer or fixed point type" , "clang/lib/AST/ASTContext.cpp", 10751); | |||
| 10752 | } | |||
| 10753 | } | |||
| 10754 | ||||
| 10755 | QualType ASTContext::getCorrespondingSignedType(QualType T) const { | |||
| 10756 | assert((T->hasUnsignedIntegerRepresentation() ||(static_cast <bool> ((T->hasUnsignedIntegerRepresentation () || T->isUnsignedFixedPointType()) && "Unexpected type" ) ? void (0) : __assert_fail ("(T->hasUnsignedIntegerRepresentation() || T->isUnsignedFixedPointType()) && \"Unexpected type\"" , "clang/lib/AST/ASTContext.cpp", 10758, __extension__ __PRETTY_FUNCTION__ )) | |||
| 10757 | T->isUnsignedFixedPointType()) &&(static_cast <bool> ((T->hasUnsignedIntegerRepresentation () || T->isUnsignedFixedPointType()) && "Unexpected type" ) ? void (0) : __assert_fail ("(T->hasUnsignedIntegerRepresentation() || T->isUnsignedFixedPointType()) && \"Unexpected type\"" , "clang/lib/AST/ASTContext.cpp", 10758, __extension__ __PRETTY_FUNCTION__ )) | |||
| 10758 | "Unexpected type")(static_cast <bool> ((T->hasUnsignedIntegerRepresentation () || T->isUnsignedFixedPointType()) && "Unexpected type" ) ? void (0) : __assert_fail ("(T->hasUnsignedIntegerRepresentation() || T->isUnsignedFixedPointType()) && \"Unexpected type\"" , "clang/lib/AST/ASTContext.cpp", 10758, __extension__ __PRETTY_FUNCTION__ )); | |||
| 10759 | ||||
| 10760 | // Turn <4 x unsigned int> -> <4 x signed int> | |||
| 10761 | if (const auto *VTy = T->getAs<VectorType>()) | |||
| 10762 | return getVectorType(getCorrespondingSignedType(VTy->getElementType()), | |||
| 10763 | VTy->getNumElements(), VTy->getVectorKind()); | |||
| 10764 | ||||
| 10765 | // For _BitInt, return a signed _BitInt with same width. | |||
| 10766 | if (const auto *EITy = T->getAs<BitIntType>()) | |||
| 10767 | return getBitIntType(/*Unsigned=*/false, EITy->getNumBits()); | |||
| 10768 | ||||
| 10769 | // For enums, get the underlying integer type of the enum, and let the general | |||
| 10770 | // integer type signchanging code handle it. | |||
| 10771 | if (const auto *ETy = T->getAs<EnumType>()) | |||
| 10772 | T = ETy->getDecl()->getIntegerType(); | |||
| 10773 | ||||
| 10774 | switch (T->castAs<BuiltinType>()->getKind()) { | |||
| 10775 | case BuiltinType::Char_U: | |||
| 10776 | case BuiltinType::UChar: | |||
| 10777 | return SignedCharTy; | |||
| 10778 | case BuiltinType::UShort: | |||
| 10779 | return ShortTy; | |||
| 10780 | case BuiltinType::UInt: | |||
| 10781 | return IntTy; | |||
| 10782 | case BuiltinType::ULong: | |||
| 10783 | return LongTy; | |||
| 10784 | case BuiltinType::ULongLong: | |||
| 10785 | return LongLongTy; | |||
| 10786 | case BuiltinType::UInt128: | |||
| 10787 | return Int128Ty; | |||
| 10788 | // wchar_t is special. It is either unsigned or not, but when it's unsigned, | |||
| 10789 | // there's no matching "signed wchar_t". Therefore we return the signed | |||
| 10790 | // version of it's underlying type instead. | |||
| 10791 | case BuiltinType::WChar_U: | |||
| 10792 | return getSignedWCharType(); | |||
| 10793 | ||||
| 10794 | case BuiltinType::UShortAccum: | |||
| 10795 | return ShortAccumTy; | |||
| 10796 | case BuiltinType::UAccum: | |||
| 10797 | return AccumTy; | |||
| 10798 | case BuiltinType::ULongAccum: | |||
| 10799 | return LongAccumTy; | |||
| 10800 | case BuiltinType::SatUShortAccum: | |||
| 10801 | return SatShortAccumTy; | |||
| 10802 | case BuiltinType::SatUAccum: | |||
| 10803 | return SatAccumTy; | |||
| 10804 | case BuiltinType::SatULongAccum: | |||
| 10805 | return SatLongAccumTy; | |||
| 10806 | case BuiltinType::UShortFract: | |||
| 10807 | return ShortFractTy; | |||
| 10808 | case BuiltinType::UFract: | |||
| 10809 | return FractTy; | |||
| 10810 | case BuiltinType::ULongFract: | |||
| 10811 | return LongFractTy; | |||
| 10812 | case BuiltinType::SatUShortFract: | |||
| 10813 | return SatShortFractTy; | |||
| 10814 | case BuiltinType::SatUFract: | |||
| 10815 | return SatFractTy; | |||
| 10816 | case BuiltinType::SatULongFract: | |||
| 10817 | return SatLongFractTy; | |||
| 10818 | default: | |||
| 10819 | llvm_unreachable("Unexpected unsigned integer or fixed point type")::llvm::llvm_unreachable_internal("Unexpected unsigned integer or fixed point type" , "clang/lib/AST/ASTContext.cpp", 10819); | |||
| 10820 | } | |||
| 10821 | } | |||
| 10822 | ||||
| 10823 | ASTMutationListener::~ASTMutationListener() = default; | |||
| 10824 | ||||
| 10825 | void ASTMutationListener::DeducedReturnType(const FunctionDecl *FD, | |||
| 10826 | QualType ReturnType) {} | |||
| 10827 | ||||
| 10828 | //===----------------------------------------------------------------------===// | |||
| 10829 | // Builtin Type Computation | |||
| 10830 | //===----------------------------------------------------------------------===// | |||
| 10831 | ||||
| 10832 | /// DecodeTypeFromStr - This decodes one type descriptor from Str, advancing the | |||
| 10833 | /// pointer over the consumed characters. This returns the resultant type. If | |||
| 10834 | /// AllowTypeModifiers is false then modifier like * are not parsed, just basic | |||
| 10835 | /// types. This allows "v2i*" to be parsed as a pointer to a v2i instead of | |||
| 10836 | /// a vector of "i*". | |||
| 10837 | /// | |||
| 10838 | /// RequiresICE is filled in on return to indicate whether the value is required | |||
| 10839 | /// to be an Integer Constant Expression. | |||
| 10840 | static QualType DecodeTypeFromStr(const char *&Str, const ASTContext &Context, | |||
| 10841 | ASTContext::GetBuiltinTypeError &Error, | |||
| 10842 | bool &RequiresICE, | |||
| 10843 | bool AllowTypeModifiers) { | |||
| 10844 | // Modifiers. | |||
| 10845 | int HowLong = 0; | |||
| 10846 | bool Signed = false, Unsigned = false; | |||
| 10847 | RequiresICE = false; | |||
| 10848 | ||||
| 10849 | // Read the prefixed modifiers first. | |||
| 10850 | bool Done = false; | |||
| 10851 | #ifndef NDEBUG | |||
| 10852 | bool IsSpecial = false; | |||
| 10853 | #endif | |||
| 10854 | while (!Done) { | |||
| 10855 | switch (*Str++) { | |||
| 10856 | default: Done = true; --Str; break; | |||
| 10857 | case 'I': | |||
| 10858 | RequiresICE = true; | |||
| 10859 | break; | |||
| 10860 | case 'S': | |||
| 10861 | assert(!Unsigned && "Can't use both 'S' and 'U' modifiers!")(static_cast <bool> (!Unsigned && "Can't use both 'S' and 'U' modifiers!" ) ? void (0) : __assert_fail ("!Unsigned && \"Can't use both 'S' and 'U' modifiers!\"" , "clang/lib/AST/ASTContext.cpp", 10861, __extension__ __PRETTY_FUNCTION__ )); | |||
| 10862 | assert(!Signed && "Can't use 'S' modifier multiple times!")(static_cast <bool> (!Signed && "Can't use 'S' modifier multiple times!" ) ? void (0) : __assert_fail ("!Signed && \"Can't use 'S' modifier multiple times!\"" , "clang/lib/AST/ASTContext.cpp", 10862, __extension__ __PRETTY_FUNCTION__ )); | |||
| 10863 | Signed = true; | |||
| 10864 | break; | |||
| 10865 | case 'U': | |||
| 10866 | assert(!Signed && "Can't use both 'S' and 'U' modifiers!")(static_cast <bool> (!Signed && "Can't use both 'S' and 'U' modifiers!" ) ? void (0) : __assert_fail ("!Signed && \"Can't use both 'S' and 'U' modifiers!\"" , "clang/lib/AST/ASTContext.cpp", 10866, __extension__ __PRETTY_FUNCTION__ )); | |||
| 10867 | assert(!Unsigned && "Can't use 'U' modifier multiple times!")(static_cast <bool> (!Unsigned && "Can't use 'U' modifier multiple times!" ) ? void (0) : __assert_fail ("!Unsigned && \"Can't use 'U' modifier multiple times!\"" , "clang/lib/AST/ASTContext.cpp", 10867, __extension__ __PRETTY_FUNCTION__ )); | |||
| 10868 | Unsigned = true; | |||
| 10869 | break; | |||
| 10870 | case 'L': | |||
| 10871 | assert(!IsSpecial && "Can't use 'L' with 'W', 'N', 'Z' or 'O' modifiers")(static_cast <bool> (!IsSpecial && "Can't use 'L' with 'W', 'N', 'Z' or 'O' modifiers" ) ? void (0) : __assert_fail ("!IsSpecial && \"Can't use 'L' with 'W', 'N', 'Z' or 'O' modifiers\"" , "clang/lib/AST/ASTContext.cpp", 10871, __extension__ __PRETTY_FUNCTION__ )); | |||
| 10872 | assert(HowLong <= 2 && "Can't have LLLL modifier")(static_cast <bool> (HowLong <= 2 && "Can't have LLLL modifier" ) ? void (0) : __assert_fail ("HowLong <= 2 && \"Can't have LLLL modifier\"" , "clang/lib/AST/ASTContext.cpp", 10872, __extension__ __PRETTY_FUNCTION__ )); | |||
| 10873 | ++HowLong; | |||
| 10874 | break; | |||
| 10875 | case 'N': | |||
| 10876 | // 'N' behaves like 'L' for all non LP64 targets and 'int' otherwise. | |||
| 10877 | assert(!IsSpecial && "Can't use two 'N', 'W', 'Z' or 'O' modifiers!")(static_cast <bool> (!IsSpecial && "Can't use two 'N', 'W', 'Z' or 'O' modifiers!" ) ? void (0) : __assert_fail ("!IsSpecial && \"Can't use two 'N', 'W', 'Z' or 'O' modifiers!\"" , "clang/lib/AST/ASTContext.cpp", 10877, __extension__ __PRETTY_FUNCTION__ )); | |||
| 10878 | assert(HowLong == 0 && "Can't use both 'L' and 'N' modifiers!")(static_cast <bool> (HowLong == 0 && "Can't use both 'L' and 'N' modifiers!" ) ? void (0) : __assert_fail ("HowLong == 0 && \"Can't use both 'L' and 'N' modifiers!\"" , "clang/lib/AST/ASTContext.cpp", 10878, __extension__ __PRETTY_FUNCTION__ )); | |||
| 10879 | #ifndef NDEBUG | |||
| 10880 | IsSpecial = true; | |||
| 10881 | #endif | |||
| 10882 | if (Context.getTargetInfo().getLongWidth() == 32) | |||
| 10883 | ++HowLong; | |||
| 10884 | break; | |||
| 10885 | case 'W': | |||
| 10886 | // This modifier represents int64 type. | |||
| 10887 | assert(!IsSpecial && "Can't use two 'N', 'W', 'Z' or 'O' modifiers!")(static_cast <bool> (!IsSpecial && "Can't use two 'N', 'W', 'Z' or 'O' modifiers!" ) ? void (0) : __assert_fail ("!IsSpecial && \"Can't use two 'N', 'W', 'Z' or 'O' modifiers!\"" , "clang/lib/AST/ASTContext.cpp", 10887, __extension__ __PRETTY_FUNCTION__ )); | |||
| 10888 | assert(HowLong == 0 && "Can't use both 'L' and 'W' modifiers!")(static_cast <bool> (HowLong == 0 && "Can't use both 'L' and 'W' modifiers!" ) ? void (0) : __assert_fail ("HowLong == 0 && \"Can't use both 'L' and 'W' modifiers!\"" , "clang/lib/AST/ASTContext.cpp", 10888, __extension__ __PRETTY_FUNCTION__ )); | |||
| 10889 | #ifndef NDEBUG | |||
| 10890 | IsSpecial = true; | |||
| 10891 | #endif | |||
| 10892 | switch (Context.getTargetInfo().getInt64Type()) { | |||
| 10893 | default: | |||
| 10894 | llvm_unreachable("Unexpected integer type")::llvm::llvm_unreachable_internal("Unexpected integer type", "clang/lib/AST/ASTContext.cpp" , 10894); | |||
| 10895 | case TargetInfo::SignedLong: | |||
| 10896 | HowLong = 1; | |||
| 10897 | break; | |||
| 10898 | case TargetInfo::SignedLongLong: | |||
| 10899 | HowLong = 2; | |||
| 10900 | break; | |||
| 10901 | } | |||
| 10902 | break; | |||
| 10903 | case 'Z': | |||
| 10904 | // This modifier represents int32 type. | |||
| 10905 | assert(!IsSpecial && "Can't use two 'N', 'W', 'Z' or 'O' modifiers!")(static_cast <bool> (!IsSpecial && "Can't use two 'N', 'W', 'Z' or 'O' modifiers!" ) ? void (0) : __assert_fail ("!IsSpecial && \"Can't use two 'N', 'W', 'Z' or 'O' modifiers!\"" , "clang/lib/AST/ASTContext.cpp", 10905, __extension__ __PRETTY_FUNCTION__ )); | |||
| 10906 | assert(HowLong == 0 && "Can't use both 'L' and 'Z' modifiers!")(static_cast <bool> (HowLong == 0 && "Can't use both 'L' and 'Z' modifiers!" ) ? void (0) : __assert_fail ("HowLong == 0 && \"Can't use both 'L' and 'Z' modifiers!\"" , "clang/lib/AST/ASTContext.cpp", 10906, __extension__ __PRETTY_FUNCTION__ )); | |||
| 10907 | #ifndef NDEBUG | |||
| 10908 | IsSpecial = true; | |||
| 10909 | #endif | |||
| 10910 | switch (Context.getTargetInfo().getIntTypeByWidth(32, true)) { | |||
| 10911 | default: | |||
| 10912 | llvm_unreachable("Unexpected integer type")::llvm::llvm_unreachable_internal("Unexpected integer type", "clang/lib/AST/ASTContext.cpp" , 10912); | |||
| 10913 | case TargetInfo::SignedInt: | |||
| 10914 | HowLong = 0; | |||
| 10915 | break; | |||
| 10916 | case TargetInfo::SignedLong: | |||
| 10917 | HowLong = 1; | |||
| 10918 | break; | |||
| 10919 | case TargetInfo::SignedLongLong: | |||
| 10920 | HowLong = 2; | |||
| 10921 | break; | |||
| 10922 | } | |||
| 10923 | break; | |||
| 10924 | case 'O': | |||
| 10925 | assert(!IsSpecial && "Can't use two 'N', 'W', 'Z' or 'O' modifiers!")(static_cast <bool> (!IsSpecial && "Can't use two 'N', 'W', 'Z' or 'O' modifiers!" ) ? void (0) : __assert_fail ("!IsSpecial && \"Can't use two 'N', 'W', 'Z' or 'O' modifiers!\"" , "clang/lib/AST/ASTContext.cpp", 10925, __extension__ __PRETTY_FUNCTION__ )); | |||
| 10926 | assert(HowLong == 0 && "Can't use both 'L' and 'O' modifiers!")(static_cast <bool> (HowLong == 0 && "Can't use both 'L' and 'O' modifiers!" ) ? void (0) : __assert_fail ("HowLong == 0 && \"Can't use both 'L' and 'O' modifiers!\"" , "clang/lib/AST/ASTContext.cpp", 10926, __extension__ __PRETTY_FUNCTION__ )); | |||
| 10927 | #ifndef NDEBUG | |||
| 10928 | IsSpecial = true; | |||
| 10929 | #endif | |||
| 10930 | if (Context.getLangOpts().OpenCL) | |||
| 10931 | HowLong = 1; | |||
| 10932 | else | |||
| 10933 | HowLong = 2; | |||
| 10934 | break; | |||
| 10935 | } | |||
| 10936 | } | |||
| 10937 | ||||
| 10938 | QualType Type; | |||
| 10939 | ||||
| 10940 | // Read the base type. | |||
| 10941 | switch (*Str++) { | |||
| 10942 | default: llvm_unreachable("Unknown builtin type letter!")::llvm::llvm_unreachable_internal("Unknown builtin type letter!" , "clang/lib/AST/ASTContext.cpp", 10942); | |||
| 10943 | case 'x': | |||
| 10944 | assert(HowLong == 0 && !Signed && !Unsigned &&(static_cast <bool> (HowLong == 0 && !Signed && !Unsigned && "Bad modifiers used with 'x'!") ? void ( 0) : __assert_fail ("HowLong == 0 && !Signed && !Unsigned && \"Bad modifiers used with 'x'!\"" , "clang/lib/AST/ASTContext.cpp", 10945, __extension__ __PRETTY_FUNCTION__ )) | |||
| 10945 | "Bad modifiers used with 'x'!")(static_cast <bool> (HowLong == 0 && !Signed && !Unsigned && "Bad modifiers used with 'x'!") ? void ( 0) : __assert_fail ("HowLong == 0 && !Signed && !Unsigned && \"Bad modifiers used with 'x'!\"" , "clang/lib/AST/ASTContext.cpp", 10945, __extension__ __PRETTY_FUNCTION__ )); | |||
| 10946 | Type = Context.Float16Ty; | |||
| 10947 | break; | |||
| 10948 | case 'y': | |||
| 10949 | assert(HowLong == 0 && !Signed && !Unsigned &&(static_cast <bool> (HowLong == 0 && !Signed && !Unsigned && "Bad modifiers used with 'y'!") ? void ( 0) : __assert_fail ("HowLong == 0 && !Signed && !Unsigned && \"Bad modifiers used with 'y'!\"" , "clang/lib/AST/ASTContext.cpp", 10950, __extension__ __PRETTY_FUNCTION__ )) | |||
| 10950 | "Bad modifiers used with 'y'!")(static_cast <bool> (HowLong == 0 && !Signed && !Unsigned && "Bad modifiers used with 'y'!") ? void ( 0) : __assert_fail ("HowLong == 0 && !Signed && !Unsigned && \"Bad modifiers used with 'y'!\"" , "clang/lib/AST/ASTContext.cpp", 10950, __extension__ __PRETTY_FUNCTION__ )); | |||
| 10951 | Type = Context.BFloat16Ty; | |||
| 10952 | break; | |||
| 10953 | case 'v': | |||
| 10954 | assert(HowLong == 0 && !Signed && !Unsigned &&(static_cast <bool> (HowLong == 0 && !Signed && !Unsigned && "Bad modifiers used with 'v'!") ? void ( 0) : __assert_fail ("HowLong == 0 && !Signed && !Unsigned && \"Bad modifiers used with 'v'!\"" , "clang/lib/AST/ASTContext.cpp", 10955, __extension__ __PRETTY_FUNCTION__ )) | |||
| 10955 | "Bad modifiers used with 'v'!")(static_cast <bool> (HowLong == 0 && !Signed && !Unsigned && "Bad modifiers used with 'v'!") ? void ( 0) : __assert_fail ("HowLong == 0 && !Signed && !Unsigned && \"Bad modifiers used with 'v'!\"" , "clang/lib/AST/ASTContext.cpp", 10955, __extension__ __PRETTY_FUNCTION__ )); | |||
| 10956 | Type = Context.VoidTy; | |||
| 10957 | break; | |||
| 10958 | case 'h': | |||
| 10959 | assert(HowLong == 0 && !Signed && !Unsigned &&(static_cast <bool> (HowLong == 0 && !Signed && !Unsigned && "Bad modifiers used with 'h'!") ? void ( 0) : __assert_fail ("HowLong == 0 && !Signed && !Unsigned && \"Bad modifiers used with 'h'!\"" , "clang/lib/AST/ASTContext.cpp", 10960, __extension__ __PRETTY_FUNCTION__ )) | |||
| 10960 | "Bad modifiers used with 'h'!")(static_cast <bool> (HowLong == 0 && !Signed && !Unsigned && "Bad modifiers used with 'h'!") ? void ( 0) : __assert_fail ("HowLong == 0 && !Signed && !Unsigned && \"Bad modifiers used with 'h'!\"" , "clang/lib/AST/ASTContext.cpp", 10960, __extension__ __PRETTY_FUNCTION__ )); | |||
| 10961 | Type = Context.HalfTy; | |||
| 10962 | break; | |||
| 10963 | case 'f': | |||
| 10964 | assert(HowLong == 0 && !Signed && !Unsigned &&(static_cast <bool> (HowLong == 0 && !Signed && !Unsigned && "Bad modifiers used with 'f'!") ? void ( 0) : __assert_fail ("HowLong == 0 && !Signed && !Unsigned && \"Bad modifiers used with 'f'!\"" , "clang/lib/AST/ASTContext.cpp", 10965, __extension__ __PRETTY_FUNCTION__ )) | |||
| 10965 | "Bad modifiers used with 'f'!")(static_cast <bool> (HowLong == 0 && !Signed && !Unsigned && "Bad modifiers used with 'f'!") ? void ( 0) : __assert_fail ("HowLong == 0 && !Signed && !Unsigned && \"Bad modifiers used with 'f'!\"" , "clang/lib/AST/ASTContext.cpp", 10965, __extension__ __PRETTY_FUNCTION__ )); | |||
| 10966 | Type = Context.FloatTy; | |||
| 10967 | break; | |||
| 10968 | case 'd': | |||
| 10969 | assert(HowLong < 3 && !Signed && !Unsigned &&(static_cast <bool> (HowLong < 3 && !Signed && !Unsigned && "Bad modifiers used with 'd'!") ? void ( 0) : __assert_fail ("HowLong < 3 && !Signed && !Unsigned && \"Bad modifiers used with 'd'!\"" , "clang/lib/AST/ASTContext.cpp", 10970, __extension__ __PRETTY_FUNCTION__ )) | |||
| 10970 | "Bad modifiers used with 'd'!")(static_cast <bool> (HowLong < 3 && !Signed && !Unsigned && "Bad modifiers used with 'd'!") ? void ( 0) : __assert_fail ("HowLong < 3 && !Signed && !Unsigned && \"Bad modifiers used with 'd'!\"" , "clang/lib/AST/ASTContext.cpp", 10970, __extension__ __PRETTY_FUNCTION__ )); | |||
| 10971 | if (HowLong == 1) | |||
| 10972 | Type = Context.LongDoubleTy; | |||
| 10973 | else if (HowLong == 2) | |||
| 10974 | Type = Context.Float128Ty; | |||
| 10975 | else | |||
| 10976 | Type = Context.DoubleTy; | |||
| 10977 | break; | |||
| 10978 | case 's': | |||
| 10979 | assert(HowLong == 0 && "Bad modifiers used with 's'!")(static_cast <bool> (HowLong == 0 && "Bad modifiers used with 's'!" ) ? void (0) : __assert_fail ("HowLong == 0 && \"Bad modifiers used with 's'!\"" , "clang/lib/AST/ASTContext.cpp", 10979, __extension__ __PRETTY_FUNCTION__ )); | |||
| 10980 | if (Unsigned) | |||
| 10981 | Type = Context.UnsignedShortTy; | |||
| 10982 | else | |||
| 10983 | Type = Context.ShortTy; | |||
| 10984 | break; | |||
| 10985 | case 'i': | |||
| 10986 | if (HowLong == 3) | |||
| 10987 | Type = Unsigned ? Context.UnsignedInt128Ty : Context.Int128Ty; | |||
| 10988 | else if (HowLong == 2) | |||
| 10989 | Type = Unsigned ? Context.UnsignedLongLongTy : Context.LongLongTy; | |||
| 10990 | else if (HowLong == 1) | |||
| 10991 | Type = Unsigned ? Context.UnsignedLongTy : Context.LongTy; | |||
| 10992 | else | |||
| 10993 | Type = Unsigned ? Context.UnsignedIntTy : Context.IntTy; | |||
| 10994 | break; | |||
| 10995 | case 'c': | |||
| 10996 | assert(HowLong == 0 && "Bad modifiers used with 'c'!")(static_cast <bool> (HowLong == 0 && "Bad modifiers used with 'c'!" ) ? void (0) : __assert_fail ("HowLong == 0 && \"Bad modifiers used with 'c'!\"" , "clang/lib/AST/ASTContext.cpp", 10996, __extension__ __PRETTY_FUNCTION__ )); | |||
| 10997 | if (Signed) | |||
| 10998 | Type = Context.SignedCharTy; | |||
| 10999 | else if (Unsigned) | |||
| 11000 | Type = Context.UnsignedCharTy; | |||
| 11001 | else | |||
| 11002 | Type = Context.CharTy; | |||
| 11003 | break; | |||
| 11004 | case 'b': // boolean | |||
| 11005 | assert(HowLong == 0 && !Signed && !Unsigned && "Bad modifiers for 'b'!")(static_cast <bool> (HowLong == 0 && !Signed && !Unsigned && "Bad modifiers for 'b'!") ? void (0) : __assert_fail ("HowLong == 0 && !Signed && !Unsigned && \"Bad modifiers for 'b'!\"" , "clang/lib/AST/ASTContext.cpp", 11005, __extension__ __PRETTY_FUNCTION__ )); | |||
| 11006 | Type = Context.BoolTy; | |||
| 11007 | break; | |||
| 11008 | case 'z': // size_t. | |||
| 11009 | assert(HowLong == 0 && !Signed && !Unsigned && "Bad modifiers for 'z'!")(static_cast <bool> (HowLong == 0 && !Signed && !Unsigned && "Bad modifiers for 'z'!") ? void (0) : __assert_fail ("HowLong == 0 && !Signed && !Unsigned && \"Bad modifiers for 'z'!\"" , "clang/lib/AST/ASTContext.cpp", 11009, __extension__ __PRETTY_FUNCTION__ )); | |||
| 11010 | Type = Context.getSizeType(); | |||
| 11011 | break; | |||
| 11012 | case 'w': // wchar_t. | |||
| 11013 | assert(HowLong == 0 && !Signed && !Unsigned && "Bad modifiers for 'w'!")(static_cast <bool> (HowLong == 0 && !Signed && !Unsigned && "Bad modifiers for 'w'!") ? void (0) : __assert_fail ("HowLong == 0 && !Signed && !Unsigned && \"Bad modifiers for 'w'!\"" , "clang/lib/AST/ASTContext.cpp", 11013, __extension__ __PRETTY_FUNCTION__ )); | |||
| 11014 | Type = Context.getWideCharType(); | |||
| 11015 | break; | |||
| 11016 | case 'F': | |||
| 11017 | Type = Context.getCFConstantStringType(); | |||
| 11018 | break; | |||
| 11019 | case 'G': | |||
| 11020 | Type = Context.getObjCIdType(); | |||
| 11021 | break; | |||
| 11022 | case 'H': | |||
| 11023 | Type = Context.getObjCSelType(); | |||
| 11024 | break; | |||
| 11025 | case 'M': | |||
| 11026 | Type = Context.getObjCSuperType(); | |||
| 11027 | break; | |||
| 11028 | case 'a': | |||
| 11029 | Type = Context.getBuiltinVaListType(); | |||
| 11030 | assert(!Type.isNull() && "builtin va list type not initialized!")(static_cast <bool> (!Type.isNull() && "builtin va list type not initialized!" ) ? void (0) : __assert_fail ("!Type.isNull() && \"builtin va list type not initialized!\"" , "clang/lib/AST/ASTContext.cpp", 11030, __extension__ __PRETTY_FUNCTION__ )); | |||
| 11031 | break; | |||
| 11032 | case 'A': | |||
| 11033 | // This is a "reference" to a va_list; however, what exactly | |||
| 11034 | // this means depends on how va_list is defined. There are two | |||
| 11035 | // different kinds of va_list: ones passed by value, and ones | |||
| 11036 | // passed by reference. An example of a by-value va_list is | |||
| 11037 | // x86, where va_list is a char*. An example of by-ref va_list | |||
| 11038 | // is x86-64, where va_list is a __va_list_tag[1]. For x86, | |||
| 11039 | // we want this argument to be a char*&; for x86-64, we want | |||
| 11040 | // it to be a __va_list_tag*. | |||
| 11041 | Type = Context.getBuiltinVaListType(); | |||
| 11042 | assert(!Type.isNull() && "builtin va list type not initialized!")(static_cast <bool> (!Type.isNull() && "builtin va list type not initialized!" ) ? void (0) : __assert_fail ("!Type.isNull() && \"builtin va list type not initialized!\"" , "clang/lib/AST/ASTContext.cpp", 11042, __extension__ __PRETTY_FUNCTION__ )); | |||
| 11043 | if (Type->isArrayType()) | |||
| 11044 | Type = Context.getArrayDecayedType(Type); | |||
| 11045 | else | |||
| 11046 | Type = Context.getLValueReferenceType(Type); | |||
| 11047 | break; | |||
| 11048 | case 'q': { | |||
| 11049 | char *End; | |||
| 11050 | unsigned NumElements = strtoul(Str, &End, 10); | |||
| 11051 | assert(End != Str && "Missing vector size")(static_cast <bool> (End != Str && "Missing vector size" ) ? void (0) : __assert_fail ("End != Str && \"Missing vector size\"" , "clang/lib/AST/ASTContext.cpp", 11051, __extension__ __PRETTY_FUNCTION__ )); | |||
| 11052 | Str = End; | |||
| 11053 | ||||
| 11054 | QualType ElementType = DecodeTypeFromStr(Str, Context, Error, | |||
| 11055 | RequiresICE, false); | |||
| 11056 | assert(!RequiresICE && "Can't require vector ICE")(static_cast <bool> (!RequiresICE && "Can't require vector ICE" ) ? void (0) : __assert_fail ("!RequiresICE && \"Can't require vector ICE\"" , "clang/lib/AST/ASTContext.cpp", 11056, __extension__ __PRETTY_FUNCTION__ )); | |||
| 11057 | ||||
| 11058 | Type = Context.getScalableVectorType(ElementType, NumElements); | |||
| 11059 | break; | |||
| 11060 | } | |||
| 11061 | case 'V': { | |||
| 11062 | char *End; | |||
| 11063 | unsigned NumElements = strtoul(Str, &End, 10); | |||
| 11064 | assert(End != Str && "Missing vector size")(static_cast <bool> (End != Str && "Missing vector size" ) ? void (0) : __assert_fail ("End != Str && \"Missing vector size\"" , "clang/lib/AST/ASTContext.cpp", 11064, __extension__ __PRETTY_FUNCTION__ )); | |||
| 11065 | Str = End; | |||
| 11066 | ||||
| 11067 | QualType ElementType = DecodeTypeFromStr(Str, Context, Error, | |||
| 11068 | RequiresICE, false); | |||
| 11069 | assert(!RequiresICE && "Can't require vector ICE")(static_cast <bool> (!RequiresICE && "Can't require vector ICE" ) ? void (0) : __assert_fail ("!RequiresICE && \"Can't require vector ICE\"" , "clang/lib/AST/ASTContext.cpp", 11069, __extension__ __PRETTY_FUNCTION__ )); | |||
| 11070 | ||||
| 11071 | // TODO: No way to make AltiVec vectors in builtins yet. | |||
| 11072 | Type = Context.getVectorType(ElementType, NumElements, | |||
| 11073 | VectorType::GenericVector); | |||
| 11074 | break; | |||
| 11075 | } | |||
| 11076 | case 'E': { | |||
| 11077 | char *End; | |||
| 11078 | ||||
| 11079 | unsigned NumElements = strtoul(Str, &End, 10); | |||
| 11080 | assert(End != Str && "Missing vector size")(static_cast <bool> (End != Str && "Missing vector size" ) ? void (0) : __assert_fail ("End != Str && \"Missing vector size\"" , "clang/lib/AST/ASTContext.cpp", 11080, __extension__ __PRETTY_FUNCTION__ )); | |||
| 11081 | ||||
| 11082 | Str = End; | |||
| 11083 | ||||
| 11084 | QualType ElementType = DecodeTypeFromStr(Str, Context, Error, RequiresICE, | |||
| 11085 | false); | |||
| 11086 | Type = Context.getExtVectorType(ElementType, NumElements); | |||
| 11087 | break; | |||
| 11088 | } | |||
| 11089 | case 'X': { | |||
| 11090 | QualType ElementType = DecodeTypeFromStr(Str, Context, Error, RequiresICE, | |||
| 11091 | false); | |||
| 11092 | assert(!RequiresICE && "Can't require complex ICE")(static_cast <bool> (!RequiresICE && "Can't require complex ICE" ) ? void (0) : __assert_fail ("!RequiresICE && \"Can't require complex ICE\"" , "clang/lib/AST/ASTContext.cpp", 11092, __extension__ __PRETTY_FUNCTION__ )); | |||
| 11093 | Type = Context.getComplexType(ElementType); | |||
| 11094 | break; | |||
| 11095 | } | |||
| 11096 | case 'Y': | |||
| 11097 | Type = Context.getPointerDiffType(); | |||
| 11098 | break; | |||
| 11099 | case 'P': | |||
| 11100 | Type = Context.getFILEType(); | |||
| 11101 | if (Type.isNull()) { | |||
| 11102 | Error = ASTContext::GE_Missing_stdio; | |||
| 11103 | return {}; | |||
| 11104 | } | |||
| 11105 | break; | |||
| 11106 | case 'J': | |||
| 11107 | if (Signed) | |||
| 11108 | Type = Context.getsigjmp_bufType(); | |||
| 11109 | else | |||
| 11110 | Type = Context.getjmp_bufType(); | |||
| 11111 | ||||
| 11112 | if (Type.isNull()) { | |||
| 11113 | Error = ASTContext::GE_Missing_setjmp; | |||
| 11114 | return {}; | |||
| 11115 | } | |||
| 11116 | break; | |||
| 11117 | case 'K': | |||
| 11118 | assert(HowLong == 0 && !Signed && !Unsigned && "Bad modifiers for 'K'!")(static_cast <bool> (HowLong == 0 && !Signed && !Unsigned && "Bad modifiers for 'K'!") ? void (0) : __assert_fail ("HowLong == 0 && !Signed && !Unsigned && \"Bad modifiers for 'K'!\"" , "clang/lib/AST/ASTContext.cpp", 11118, __extension__ __PRETTY_FUNCTION__ )); | |||
| 11119 | Type = Context.getucontext_tType(); | |||
| 11120 | ||||
| 11121 | if (Type.isNull()) { | |||
| 11122 | Error = ASTContext::GE_Missing_ucontext; | |||
| 11123 | return {}; | |||
| 11124 | } | |||
| 11125 | break; | |||
| 11126 | case 'p': | |||
| 11127 | Type = Context.getProcessIDType(); | |||
| 11128 | break; | |||
| 11129 | } | |||
| 11130 | ||||
| 11131 | // If there are modifiers and if we're allowed to parse them, go for it. | |||
| 11132 | Done = !AllowTypeModifiers; | |||
| 11133 | while (!Done) { | |||
| 11134 | switch (char c = *Str++) { | |||
| 11135 | default: Done = true; --Str; break; | |||
| 11136 | case '*': | |||
| 11137 | case '&': { | |||
| 11138 | // Both pointers and references can have their pointee types | |||
| 11139 | // qualified with an address space. | |||
| 11140 | char *End; | |||
| 11141 | unsigned AddrSpace = strtoul(Str, &End, 10); | |||
| 11142 | if (End != Str) { | |||
| 11143 | // Note AddrSpace == 0 is not the same as an unspecified address space. | |||
| 11144 | Type = Context.getAddrSpaceQualType( | |||
| 11145 | Type, | |||
| 11146 | Context.getLangASForBuiltinAddressSpace(AddrSpace)); | |||
| 11147 | Str = End; | |||
| 11148 | } | |||
| 11149 | if (c == '*') | |||
| 11150 | Type = Context.getPointerType(Type); | |||
| 11151 | else | |||
| 11152 | Type = Context.getLValueReferenceType(Type); | |||
| 11153 | break; | |||
| 11154 | } | |||
| 11155 | // FIXME: There's no way to have a built-in with an rvalue ref arg. | |||
| 11156 | case 'C': | |||
| 11157 | Type = Type.withConst(); | |||
| 11158 | break; | |||
| 11159 | case 'D': | |||
| 11160 | Type = Context.getVolatileType(Type); | |||
| 11161 | break; | |||
| 11162 | case 'R': | |||
| 11163 | Type = Type.withRestrict(); | |||
| 11164 | break; | |||
| 11165 | } | |||
| 11166 | } | |||
| 11167 | ||||
| 11168 | assert((!RequiresICE || Type->isIntegralOrEnumerationType()) &&(static_cast <bool> ((!RequiresICE || Type->isIntegralOrEnumerationType ()) && "Integer constant 'I' type must be an integer" ) ? void (0) : __assert_fail ("(!RequiresICE || Type->isIntegralOrEnumerationType()) && \"Integer constant 'I' type must be an integer\"" , "clang/lib/AST/ASTContext.cpp", 11169, __extension__ __PRETTY_FUNCTION__ )) | |||
| 11169 | "Integer constant 'I' type must be an integer")(static_cast <bool> ((!RequiresICE || Type->isIntegralOrEnumerationType ()) && "Integer constant 'I' type must be an integer" ) ? void (0) : __assert_fail ("(!RequiresICE || Type->isIntegralOrEnumerationType()) && \"Integer constant 'I' type must be an integer\"" , "clang/lib/AST/ASTContext.cpp", 11169, __extension__ __PRETTY_FUNCTION__ )); | |||
| 11170 | ||||
| 11171 | return Type; | |||
| 11172 | } | |||
| 11173 | ||||
| 11174 | // On some targets such as PowerPC, some of the builtins are defined with custom | |||
| 11175 | // type descriptors for target-dependent types. These descriptors are decoded in | |||
| 11176 | // other functions, but it may be useful to be able to fall back to default | |||
| 11177 | // descriptor decoding to define builtins mixing target-dependent and target- | |||
| 11178 | // independent types. This function allows decoding one type descriptor with | |||
| 11179 | // default decoding. | |||
| 11180 | QualType ASTContext::DecodeTypeStr(const char *&Str, const ASTContext &Context, | |||
| 11181 | GetBuiltinTypeError &Error, bool &RequireICE, | |||
| 11182 | bool AllowTypeModifiers) const { | |||
| 11183 | return DecodeTypeFromStr(Str, Context, Error, RequireICE, AllowTypeModifiers); | |||
| 11184 | } | |||
| 11185 | ||||
| 11186 | /// GetBuiltinType - Return the type for the specified builtin. | |||
| 11187 | QualType ASTContext::GetBuiltinType(unsigned Id, | |||
| 11188 | GetBuiltinTypeError &Error, | |||
| 11189 | unsigned *IntegerConstantArgs) const { | |||
| 11190 | const char *TypeStr = BuiltinInfo.getTypeString(Id); | |||
| 11191 | if (TypeStr[0] == '\0') { | |||
| 11192 | Error = GE_Missing_type; | |||
| 11193 | return {}; | |||
| 11194 | } | |||
| 11195 | ||||
| 11196 | SmallVector<QualType, 8> ArgTypes; | |||
| 11197 | ||||
| 11198 | bool RequiresICE = false; | |||
| 11199 | Error = GE_None; | |||
| 11200 | QualType ResType = DecodeTypeFromStr(TypeStr, *this, Error, | |||
| 11201 | RequiresICE, true); | |||
| 11202 | if (Error != GE_None) | |||
| 11203 | return {}; | |||
| 11204 | ||||
| 11205 | assert(!RequiresICE && "Result of intrinsic cannot be required to be an ICE")(static_cast <bool> (!RequiresICE && "Result of intrinsic cannot be required to be an ICE" ) ? void (0) : __assert_fail ("!RequiresICE && \"Result of intrinsic cannot be required to be an ICE\"" , "clang/lib/AST/ASTContext.cpp", 11205, __extension__ __PRETTY_FUNCTION__ )); | |||
| 11206 | ||||
| 11207 | while (TypeStr[0] && TypeStr[0] != '.') { | |||
| 11208 | QualType Ty = DecodeTypeFromStr(TypeStr, *this, Error, RequiresICE, true); | |||
| 11209 | if (Error != GE_None) | |||
| 11210 | return {}; | |||
| 11211 | ||||
| 11212 | // If this argument is required to be an IntegerConstantExpression and the | |||
| 11213 | // caller cares, fill in the bitmask we return. | |||
| 11214 | if (RequiresICE && IntegerConstantArgs) | |||
| 11215 | *IntegerConstantArgs |= 1 << ArgTypes.size(); | |||
| 11216 | ||||
| 11217 | // Do array -> pointer decay. The builtin should use the decayed type. | |||
| 11218 | if (Ty->isArrayType()) | |||
| 11219 | Ty = getArrayDecayedType(Ty); | |||
| 11220 | ||||
| 11221 | ArgTypes.push_back(Ty); | |||
| 11222 | } | |||
| 11223 | ||||
| 11224 | if (Id == Builtin::BI__GetExceptionInfo) | |||
| 11225 | return {}; | |||
| 11226 | ||||
| 11227 | assert((TypeStr[0] != '.' || TypeStr[1] == 0) &&(static_cast <bool> ((TypeStr[0] != '.' || TypeStr[1] == 0) && "'.' should only occur at end of builtin type list!" ) ? void (0) : __assert_fail ("(TypeStr[0] != '.' || TypeStr[1] == 0) && \"'.' should only occur at end of builtin type list!\"" , "clang/lib/AST/ASTContext.cpp", 11228, __extension__ __PRETTY_FUNCTION__ )) | |||
| 11228 | "'.' should only occur at end of builtin type list!")(static_cast <bool> ((TypeStr[0] != '.' || TypeStr[1] == 0) && "'.' should only occur at end of builtin type list!" ) ? void (0) : __assert_fail ("(TypeStr[0] != '.' || TypeStr[1] == 0) && \"'.' should only occur at end of builtin type list!\"" , "clang/lib/AST/ASTContext.cpp", 11228, __extension__ __PRETTY_FUNCTION__ )); | |||
| 11229 | ||||
| 11230 | bool Variadic = (TypeStr[0] == '.'); | |||
| 11231 | ||||
| 11232 | FunctionType::ExtInfo EI(getDefaultCallingConvention( | |||
| 11233 | Variadic, /*IsCXXMethod=*/false, /*IsBuiltin=*/true)); | |||
| 11234 | if (BuiltinInfo.isNoReturn(Id)) EI = EI.withNoReturn(true); | |||
| 11235 | ||||
| 11236 | ||||
| 11237 | // We really shouldn't be making a no-proto type here. | |||
| 11238 | if (ArgTypes.empty() && Variadic && !getLangOpts().CPlusPlus) | |||
| 11239 | return getFunctionNoProtoType(ResType, EI); | |||
| 11240 | ||||
| 11241 | FunctionProtoType::ExtProtoInfo EPI; | |||
| 11242 | EPI.ExtInfo = EI; | |||
| 11243 | EPI.Variadic = Variadic; | |||
| 11244 | if (getLangOpts().CPlusPlus && BuiltinInfo.isNoThrow(Id)) | |||
| 11245 | EPI.ExceptionSpec.Type = | |||
| 11246 | getLangOpts().CPlusPlus11 ? EST_BasicNoexcept : EST_DynamicNone; | |||
| 11247 | ||||
| 11248 | return getFunctionType(ResType, ArgTypes, EPI); | |||
| 11249 | } | |||
| 11250 | ||||
| 11251 | static GVALinkage basicGVALinkageForFunction(const ASTContext &Context, | |||
| 11252 | const FunctionDecl *FD) { | |||
| 11253 | if (!FD->isExternallyVisible()) | |||
| 11254 | return GVA_Internal; | |||
| 11255 | ||||
| 11256 | // Non-user-provided functions get emitted as weak definitions with every | |||
| 11257 | // use, no matter whether they've been explicitly instantiated etc. | |||
| 11258 | if (const auto *MD = dyn_cast<CXXMethodDecl>(FD)) | |||
| 11259 | if (!MD->isUserProvided()) | |||
| 11260 | return GVA_DiscardableODR; | |||
| 11261 | ||||
| 11262 | GVALinkage External; | |||
| 11263 | switch (FD->getTemplateSpecializationKind()) { | |||
| 11264 | case TSK_Undeclared: | |||
| 11265 | case TSK_ExplicitSpecialization: | |||
| 11266 | External = GVA_StrongExternal; | |||
| 11267 | break; | |||
| 11268 | ||||
| 11269 | case TSK_ExplicitInstantiationDefinition: | |||
| 11270 | return GVA_StrongODR; | |||
| 11271 | ||||
| 11272 | // C++11 [temp.explicit]p10: | |||
| 11273 | // [ Note: The intent is that an inline function that is the subject of | |||
| 11274 | // an explicit instantiation declaration will still be implicitly | |||
| 11275 | // instantiated when used so that the body can be considered for | |||
| 11276 | // inlining, but that no out-of-line copy of the inline function would be | |||
| 11277 | // generated in the translation unit. -- end note ] | |||
| 11278 | case TSK_ExplicitInstantiationDeclaration: | |||
| 11279 | return GVA_AvailableExternally; | |||
| 11280 | ||||
| 11281 | case TSK_ImplicitInstantiation: | |||
| 11282 | External = GVA_DiscardableODR; | |||
| 11283 | break; | |||
| 11284 | } | |||
| 11285 | ||||
| 11286 | if (!FD->isInlined()) | |||
| 11287 | return External; | |||
| 11288 | ||||
| 11289 | if ((!Context.getLangOpts().CPlusPlus && | |||
| 11290 | !Context.getTargetInfo().getCXXABI().isMicrosoft() && | |||
| 11291 | !FD->hasAttr<DLLExportAttr>()) || | |||
| 11292 | FD->hasAttr<GNUInlineAttr>()) { | |||
| 11293 | // FIXME: This doesn't match gcc's behavior for dllexport inline functions. | |||
| 11294 | ||||
| 11295 | // GNU or C99 inline semantics. Determine whether this symbol should be | |||
| 11296 | // externally visible. | |||
| 11297 | if (FD->isInlineDefinitionExternallyVisible()) | |||
| 11298 | return External; | |||
| 11299 | ||||
| 11300 | // C99 inline semantics, where the symbol is not externally visible. | |||
| 11301 | return GVA_AvailableExternally; | |||
| 11302 | } | |||
| 11303 | ||||
| 11304 | // Functions specified with extern and inline in -fms-compatibility mode | |||
| 11305 | // forcibly get emitted. While the body of the function cannot be later | |||
| 11306 | // replaced, the function definition cannot be discarded. | |||
| 11307 | if (FD->isMSExternInline()) | |||
| 11308 | return GVA_StrongODR; | |||
| 11309 | ||||
| 11310 | return GVA_DiscardableODR; | |||
| 11311 | } | |||
| 11312 | ||||
| 11313 | static GVALinkage adjustGVALinkageForAttributes(const ASTContext &Context, | |||
| 11314 | const Decl *D, GVALinkage L) { | |||
| 11315 | // See http://msdn.microsoft.com/en-us/library/xa0d9ste.aspx | |||
| 11316 | // dllexport/dllimport on inline functions. | |||
| 11317 | if (D->hasAttr<DLLImportAttr>()) { | |||
| 11318 | if (L == GVA_DiscardableODR || L == GVA_StrongODR) | |||
| 11319 | return GVA_AvailableExternally; | |||
| 11320 | } else if (D->hasAttr<DLLExportAttr>()) { | |||
| 11321 | if (L == GVA_DiscardableODR) | |||
| 11322 | return GVA_StrongODR; | |||
| 11323 | } else if (Context.getLangOpts().CUDA && Context.getLangOpts().CUDAIsDevice) { | |||
| 11324 | // Device-side functions with __global__ attribute must always be | |||
| 11325 | // visible externally so they can be launched from host. | |||
| 11326 | if (D->hasAttr<CUDAGlobalAttr>() && | |||
| 11327 | (L == GVA_DiscardableODR || L == GVA_Internal)) | |||
| 11328 | return GVA_StrongODR; | |||
| 11329 | // Single source offloading languages like CUDA/HIP need to be able to | |||
| 11330 | // access static device variables from host code of the same compilation | |||
| 11331 | // unit. This is done by externalizing the static variable with a shared | |||
| 11332 | // name between the host and device compilation which is the same for the | |||
| 11333 | // same compilation unit whereas different among different compilation | |||
| 11334 | // units. | |||
| 11335 | if (Context.shouldExternalize(D)) | |||
| 11336 | return GVA_StrongExternal; | |||
| 11337 | } | |||
| 11338 | return L; | |||
| 11339 | } | |||
| 11340 | ||||
| 11341 | /// Adjust the GVALinkage for a declaration based on what an external AST source | |||
| 11342 | /// knows about whether there can be other definitions of this declaration. | |||
| 11343 | static GVALinkage | |||
| 11344 | adjustGVALinkageForExternalDefinitionKind(const ASTContext &Ctx, const Decl *D, | |||
| 11345 | GVALinkage L) { | |||
| 11346 | ExternalASTSource *Source = Ctx.getExternalSource(); | |||
| 11347 | if (!Source) | |||
| 11348 | return L; | |||
| 11349 | ||||
| 11350 | switch (Source->hasExternalDefinitions(D)) { | |||
| 11351 | case ExternalASTSource::EK_Never: | |||
| 11352 | // Other translation units rely on us to provide the definition. | |||
| 11353 | if (L == GVA_DiscardableODR) | |||
| 11354 | return GVA_StrongODR; | |||
| 11355 | break; | |||
| 11356 | ||||
| 11357 | case ExternalASTSource::EK_Always: | |||
| 11358 | return GVA_AvailableExternally; | |||
| 11359 | ||||
| 11360 | case ExternalASTSource::EK_ReplyHazy: | |||
| 11361 | break; | |||
| 11362 | } | |||
| 11363 | return L; | |||
| 11364 | } | |||
| 11365 | ||||
| 11366 | GVALinkage ASTContext::GetGVALinkageForFunction(const FunctionDecl *FD) const { | |||
| 11367 | return adjustGVALinkageForExternalDefinitionKind(*this, FD, | |||
| 11368 | adjustGVALinkageForAttributes(*this, FD, | |||
| 11369 | basicGVALinkageForFunction(*this, FD))); | |||
| 11370 | } | |||
| 11371 | ||||
| 11372 | static GVALinkage basicGVALinkageForVariable(const ASTContext &Context, | |||
| 11373 | const VarDecl *VD) { | |||
| 11374 | if (!VD->isExternallyVisible()) | |||
| 11375 | return GVA_Internal; | |||
| 11376 | ||||
| 11377 | if (VD->isStaticLocal()) { | |||
| 11378 | const DeclContext *LexicalContext = VD->getParentFunctionOrMethod(); | |||
| 11379 | while (LexicalContext && !isa<FunctionDecl>(LexicalContext)) | |||
| 11380 | LexicalContext = LexicalContext->getLexicalParent(); | |||
| 11381 | ||||
| 11382 | // ObjC Blocks can create local variables that don't have a FunctionDecl | |||
| 11383 | // LexicalContext. | |||
| 11384 | if (!LexicalContext) | |||
| 11385 | return GVA_DiscardableODR; | |||
| 11386 | ||||
| 11387 | // Otherwise, let the static local variable inherit its linkage from the | |||
| 11388 | // nearest enclosing function. | |||
| 11389 | auto StaticLocalLinkage = | |||
| 11390 | Context.GetGVALinkageForFunction(cast<FunctionDecl>(LexicalContext)); | |||
| 11391 | ||||
| 11392 | // Itanium ABI 5.2.2: "Each COMDAT group [for a static local variable] must | |||
| 11393 | // be emitted in any object with references to the symbol for the object it | |||
| 11394 | // contains, whether inline or out-of-line." | |||
| 11395 | // Similar behavior is observed with MSVC. An alternative ABI could use | |||
| 11396 | // StrongODR/AvailableExternally to match the function, but none are | |||
| 11397 | // known/supported currently. | |||
| 11398 | if (StaticLocalLinkage == GVA_StrongODR || | |||
| 11399 | StaticLocalLinkage == GVA_AvailableExternally) | |||
| 11400 | return GVA_DiscardableODR; | |||
| 11401 | return StaticLocalLinkage; | |||
| 11402 | } | |||
| 11403 | ||||
| 11404 | // MSVC treats in-class initialized static data members as definitions. | |||
| 11405 | // By giving them non-strong linkage, out-of-line definitions won't | |||
| 11406 | // cause link errors. | |||
| 11407 | if (Context.isMSStaticDataMemberInlineDefinition(VD)) | |||
| 11408 | return GVA_DiscardableODR; | |||
| 11409 | ||||
| 11410 | // Most non-template variables have strong linkage; inline variables are | |||
| 11411 | // linkonce_odr or (occasionally, for compatibility) weak_odr. | |||
| 11412 | GVALinkage StrongLinkage; | |||
| 11413 | switch (Context.getInlineVariableDefinitionKind(VD)) { | |||
| 11414 | case ASTContext::InlineVariableDefinitionKind::None: | |||
| 11415 | StrongLinkage = GVA_StrongExternal; | |||
| 11416 | break; | |||
| 11417 | case ASTContext::InlineVariableDefinitionKind::Weak: | |||
| 11418 | case ASTContext::InlineVariableDefinitionKind::WeakUnknown: | |||
| 11419 | StrongLinkage = GVA_DiscardableODR; | |||
| 11420 | break; | |||
| 11421 | case ASTContext::InlineVariableDefinitionKind::Strong: | |||
| 11422 | StrongLinkage = GVA_StrongODR; | |||
| 11423 | break; | |||
| 11424 | } | |||
| 11425 | ||||
| 11426 | switch (VD->getTemplateSpecializationKind()) { | |||
| 11427 | case TSK_Undeclared: | |||
| 11428 | return StrongLinkage; | |||
| 11429 | ||||
| 11430 | case TSK_ExplicitSpecialization: | |||
| 11431 | return Context.getTargetInfo().getCXXABI().isMicrosoft() && | |||
| 11432 | VD->isStaticDataMember() | |||
| 11433 | ? GVA_StrongODR | |||
| 11434 | : StrongLinkage; | |||
| 11435 | ||||
| 11436 | case TSK_ExplicitInstantiationDefinition: | |||
| 11437 | return GVA_StrongODR; | |||
| 11438 | ||||
| 11439 | case TSK_ExplicitInstantiationDeclaration: | |||
| 11440 | return GVA_AvailableExternally; | |||
| 11441 | ||||
| 11442 | case TSK_ImplicitInstantiation: | |||
| 11443 | return GVA_DiscardableODR; | |||
| 11444 | } | |||
| 11445 | ||||
| 11446 | llvm_unreachable("Invalid Linkage!")::llvm::llvm_unreachable_internal("Invalid Linkage!", "clang/lib/AST/ASTContext.cpp" , 11446); | |||
| 11447 | } | |||
| 11448 | ||||
| 11449 | GVALinkage ASTContext::GetGVALinkageForVariable(const VarDecl *VD) { | |||
| 11450 | return adjustGVALinkageForExternalDefinitionKind(*this, VD, | |||
| 11451 | adjustGVALinkageForAttributes(*this, VD, | |||
| 11452 | basicGVALinkageForVariable(*this, VD))); | |||
| 11453 | } | |||
| 11454 | ||||
| 11455 | bool ASTContext::DeclMustBeEmitted(const Decl *D) { | |||
| 11456 | if (const auto *VD = dyn_cast<VarDecl>(D)) { | |||
| 11457 | if (!VD->isFileVarDecl()) | |||
| 11458 | return false; | |||
| 11459 | // Global named register variables (GNU extension) are never emitted. | |||
| 11460 | if (VD->getStorageClass() == SC_Register) | |||
| 11461 | return false; | |||
| 11462 | if (VD->getDescribedVarTemplate() || | |||
| 11463 | isa<VarTemplatePartialSpecializationDecl>(VD)) | |||
| 11464 | return false; | |||
| 11465 | } else if (const auto *FD = dyn_cast<FunctionDecl>(D)) { | |||
| 11466 | // We never need to emit an uninstantiated function template. | |||
| 11467 | if (FD->getTemplatedKind() == FunctionDecl::TK_FunctionTemplate) | |||
| 11468 | return false; | |||
| 11469 | } else if (isa<PragmaCommentDecl>(D)) | |||
| 11470 | return true; | |||
| 11471 | else if (isa<PragmaDetectMismatchDecl>(D)) | |||
| 11472 | return true; | |||
| 11473 | else if (isa<OMPRequiresDecl>(D)) | |||
| 11474 | return true; | |||
| 11475 | else if (isa<OMPThreadPrivateDecl>(D)) | |||
| 11476 | return !D->getDeclContext()->isDependentContext(); | |||
| 11477 | else if (isa<OMPAllocateDecl>(D)) | |||
| 11478 | return !D->getDeclContext()->isDependentContext(); | |||
| 11479 | else if (isa<OMPDeclareReductionDecl>(D) || isa<OMPDeclareMapperDecl>(D)) | |||
| 11480 | return !D->getDeclContext()->isDependentContext(); | |||
| 11481 | else if (isa<ImportDecl>(D)) | |||
| 11482 | return true; | |||
| 11483 | else | |||
| 11484 | return false; | |||
| 11485 | ||||
| 11486 | // If this is a member of a class template, we do not need to emit it. | |||
| 11487 | if (D->getDeclContext()->isDependentContext()) | |||
| 11488 | return false; | |||
| 11489 | ||||
| 11490 | // Weak references don't produce any output by themselves. | |||
| 11491 | if (D->hasAttr<WeakRefAttr>()) | |||
| 11492 | return false; | |||
| 11493 | ||||
| 11494 | // Aliases and used decls are required. | |||
| 11495 | if (D->hasAttr<AliasAttr>() || D->hasAttr<UsedAttr>()) | |||
| 11496 | return true; | |||
| 11497 | ||||
| 11498 | if (const auto *FD = dyn_cast<FunctionDecl>(D)) { | |||
| 11499 | // Forward declarations aren't required. | |||
| 11500 | if (!FD->doesThisDeclarationHaveABody()) | |||
| 11501 | return FD->doesDeclarationForceExternallyVisibleDefinition(); | |||
| 11502 | ||||
| 11503 | // Constructors and destructors are required. | |||
| 11504 | if (FD->hasAttr<ConstructorAttr>() || FD->hasAttr<DestructorAttr>()) | |||
| 11505 | return true; | |||
| 11506 | ||||
| 11507 | // The key function for a class is required. This rule only comes | |||
| 11508 | // into play when inline functions can be key functions, though. | |||
| 11509 | if (getTargetInfo().getCXXABI().canKeyFunctionBeInline()) { | |||
| 11510 | if (const auto *MD = dyn_cast<CXXMethodDecl>(FD)) { | |||
| 11511 | const CXXRecordDecl *RD = MD->getParent(); | |||
| 11512 | if (MD->isOutOfLine() && RD->isDynamicClass()) { | |||
| 11513 | const CXXMethodDecl *KeyFunc = getCurrentKeyFunction(RD); | |||
| 11514 | if (KeyFunc && KeyFunc->getCanonicalDecl() == MD->getCanonicalDecl()) | |||
| 11515 | return true; | |||
| 11516 | } | |||
| 11517 | } | |||
| 11518 | } | |||
| 11519 | ||||
| 11520 | GVALinkage Linkage = GetGVALinkageForFunction(FD); | |||
| 11521 | ||||
| 11522 | // static, static inline, always_inline, and extern inline functions can | |||
| 11523 | // always be deferred. Normal inline functions can be deferred in C99/C++. | |||
| 11524 | // Implicit template instantiations can also be deferred in C++. | |||
| 11525 | return !isDiscardableGVALinkage(Linkage); | |||
| 11526 | } | |||
| 11527 | ||||
| 11528 | const auto *VD = cast<VarDecl>(D); | |||
| 11529 | assert(VD->isFileVarDecl() && "Expected file scoped var")(static_cast <bool> (VD->isFileVarDecl() && "Expected file scoped var" ) ? void (0) : __assert_fail ("VD->isFileVarDecl() && \"Expected file scoped var\"" , "clang/lib/AST/ASTContext.cpp", 11529, __extension__ __PRETTY_FUNCTION__ )); | |||
| 11530 | ||||
| 11531 | // If the decl is marked as `declare target to`, it should be emitted for the | |||
| 11532 | // host and for the device. | |||
| 11533 | if (LangOpts.OpenMP && | |||
| 11534 | OMPDeclareTargetDeclAttr::isDeclareTargetDeclaration(VD)) | |||
| 11535 | return true; | |||
| 11536 | ||||
| 11537 | if (VD->isThisDeclarationADefinition() == VarDecl::DeclarationOnly && | |||
| 11538 | !isMSStaticDataMemberInlineDefinition(VD)) | |||
| 11539 | return false; | |||
| 11540 | ||||
| 11541 | // Variables that can be needed in other TUs are required. | |||
| 11542 | auto Linkage = GetGVALinkageForVariable(VD); | |||
| 11543 | if (!isDiscardableGVALinkage(Linkage)) | |||
| 11544 | return true; | |||
| 11545 | ||||
| 11546 | // We never need to emit a variable that is available in another TU. | |||
| 11547 | if (Linkage == GVA_AvailableExternally) | |||
| 11548 | return false; | |||
| 11549 | ||||
| 11550 | // Variables that have destruction with side-effects are required. | |||
| 11551 | if (VD->needsDestruction(*this)) | |||
| 11552 | return true; | |||
| 11553 | ||||
| 11554 | // Variables that have initialization with side-effects are required. | |||
| 11555 | if (VD->getInit() && VD->getInit()->HasSideEffects(*this) && | |||
| 11556 | // We can get a value-dependent initializer during error recovery. | |||
| 11557 | (VD->getInit()->isValueDependent() || !VD->evaluateValue())) | |||
| 11558 | return true; | |||
| 11559 | ||||
| 11560 | // Likewise, variables with tuple-like bindings are required if their | |||
| 11561 | // bindings have side-effects. | |||
| 11562 | if (const auto *DD = dyn_cast<DecompositionDecl>(VD)) | |||
| 11563 | for (const auto *BD : DD->bindings()) | |||
| 11564 | if (const auto *BindingVD = BD->getHoldingVar()) | |||
| 11565 | if (DeclMustBeEmitted(BindingVD)) | |||
| 11566 | return true; | |||
| 11567 | ||||
| 11568 | return false; | |||
| 11569 | } | |||
| 11570 | ||||
| 11571 | void ASTContext::forEachMultiversionedFunctionVersion( | |||
| 11572 | const FunctionDecl *FD, | |||
| 11573 | llvm::function_ref<void(FunctionDecl *)> Pred) const { | |||
| 11574 | assert(FD->isMultiVersion() && "Only valid for multiversioned functions")(static_cast <bool> (FD->isMultiVersion() && "Only valid for multiversioned functions") ? void (0) : __assert_fail ("FD->isMultiVersion() && \"Only valid for multiversioned functions\"" , "clang/lib/AST/ASTContext.cpp", 11574, __extension__ __PRETTY_FUNCTION__ )); | |||
| 11575 | llvm::SmallDenseSet<const FunctionDecl*, 4> SeenDecls; | |||
| 11576 | FD = FD->getMostRecentDecl(); | |||
| 11577 | // FIXME: The order of traversal here matters and depends on the order of | |||
| 11578 | // lookup results, which happens to be (mostly) oldest-to-newest, but we | |||
| 11579 | // shouldn't rely on that. | |||
| 11580 | for (auto *CurDecl : | |||
| 11581 | FD->getDeclContext()->getRedeclContext()->lookup(FD->getDeclName())) { | |||
| 11582 | FunctionDecl *CurFD = CurDecl->getAsFunction()->getMostRecentDecl(); | |||
| 11583 | if (CurFD && hasSameType(CurFD->getType(), FD->getType()) && | |||
| 11584 | std::end(SeenDecls) == llvm::find(SeenDecls, CurFD)) { | |||
| 11585 | SeenDecls.insert(CurFD); | |||
| 11586 | Pred(CurFD); | |||
| 11587 | } | |||
| 11588 | } | |||
| 11589 | } | |||
| 11590 | ||||
| 11591 | CallingConv ASTContext::getDefaultCallingConvention(bool IsVariadic, | |||
| 11592 | bool IsCXXMethod, | |||
| 11593 | bool IsBuiltin) const { | |||
| 11594 | // Pass through to the C++ ABI object | |||
| 11595 | if (IsCXXMethod) | |||
| 11596 | return ABI->getDefaultMethodCallConv(IsVariadic); | |||
| 11597 | ||||
| 11598 | // Builtins ignore user-specified default calling convention and remain the | |||
| 11599 | // Target's default calling convention. | |||
| 11600 | if (!IsBuiltin) { | |||
| 11601 | switch (LangOpts.getDefaultCallingConv()) { | |||
| 11602 | case LangOptions::DCC_None: | |||
| 11603 | break; | |||
| 11604 | case LangOptions::DCC_CDecl: | |||
| 11605 | return CC_C; | |||
| 11606 | case LangOptions::DCC_FastCall: | |||
| 11607 | if (getTargetInfo().hasFeature("sse2") && !IsVariadic) | |||
| 11608 | return CC_X86FastCall; | |||
| 11609 | break; | |||
| 11610 | case LangOptions::DCC_StdCall: | |||
| 11611 | if (!IsVariadic) | |||
| 11612 | return CC_X86StdCall; | |||
| 11613 | break; | |||
| 11614 | case LangOptions::DCC_VectorCall: | |||
| 11615 | // __vectorcall cannot be applied to variadic functions. | |||
| 11616 | if (!IsVariadic) | |||
| 11617 | return CC_X86VectorCall; | |||
| 11618 | break; | |||
| 11619 | case LangOptions::DCC_RegCall: | |||
| 11620 | // __regcall cannot be applied to variadic functions. | |||
| 11621 | if (!IsVariadic) | |||
| 11622 | return CC_X86RegCall; | |||
| 11623 | break; | |||
| 11624 | } | |||
| 11625 | } | |||
| 11626 | return Target->getDefaultCallingConv(); | |||
| 11627 | } | |||
| 11628 | ||||
| 11629 | bool ASTContext::isNearlyEmpty(const CXXRecordDecl *RD) const { | |||
| 11630 | // Pass through to the C++ ABI object | |||
| 11631 | return ABI->isNearlyEmpty(RD); | |||
| 11632 | } | |||
| 11633 | ||||
| 11634 | VTableContextBase *ASTContext::getVTableContext() { | |||
| 11635 | if (!VTContext.get()) { | |||
| 11636 | auto ABI = Target->getCXXABI(); | |||
| 11637 | if (ABI.isMicrosoft()) | |||
| 11638 | VTContext.reset(new MicrosoftVTableContext(*this)); | |||
| 11639 | else { | |||
| 11640 | auto ComponentLayout = getLangOpts().RelativeCXXABIVTables | |||
| 11641 | ? ItaniumVTableContext::Relative | |||
| 11642 | : ItaniumVTableContext::Pointer; | |||
| 11643 | VTContext.reset(new ItaniumVTableContext(*this, ComponentLayout)); | |||
| 11644 | } | |||
| 11645 | } | |||
| 11646 | return VTContext.get(); | |||
| 11647 | } | |||
| 11648 | ||||
| 11649 | MangleContext *ASTContext::createMangleContext(const TargetInfo *T) { | |||
| 11650 | if (!T) | |||
| 11651 | T = Target; | |||
| 11652 | switch (T->getCXXABI().getKind()) { | |||
| 11653 | case TargetCXXABI::AppleARM64: | |||
| 11654 | case TargetCXXABI::Fuchsia: | |||
| 11655 | case TargetCXXABI::GenericAArch64: | |||
| 11656 | case TargetCXXABI::GenericItanium: | |||
| 11657 | case TargetCXXABI::GenericARM: | |||
| 11658 | case TargetCXXABI::GenericMIPS: | |||
| 11659 | case TargetCXXABI::iOS: | |||
| 11660 | case TargetCXXABI::WebAssembly: | |||
| 11661 | case TargetCXXABI::WatchOS: | |||
| 11662 | case TargetCXXABI::XL: | |||
| 11663 | return ItaniumMangleContext::create(*this, getDiagnostics()); | |||
| 11664 | case TargetCXXABI::Microsoft: | |||
| 11665 | return MicrosoftMangleContext::create(*this, getDiagnostics()); | |||
| 11666 | } | |||
| 11667 | llvm_unreachable("Unsupported ABI")::llvm::llvm_unreachable_internal("Unsupported ABI", "clang/lib/AST/ASTContext.cpp" , 11667); | |||
| 11668 | } | |||
| 11669 | ||||
| 11670 | MangleContext *ASTContext::createDeviceMangleContext(const TargetInfo &T) { | |||
| 11671 | assert(T.getCXXABI().getKind() != TargetCXXABI::Microsoft &&(static_cast <bool> (T.getCXXABI().getKind() != TargetCXXABI ::Microsoft && "Device mangle context does not support Microsoft mangling." ) ? void (0) : __assert_fail ("T.getCXXABI().getKind() != TargetCXXABI::Microsoft && \"Device mangle context does not support Microsoft mangling.\"" , "clang/lib/AST/ASTContext.cpp", 11672, __extension__ __PRETTY_FUNCTION__ )) | |||
| 11672 | "Device mangle context does not support Microsoft mangling.")(static_cast <bool> (T.getCXXABI().getKind() != TargetCXXABI ::Microsoft && "Device mangle context does not support Microsoft mangling." ) ? void (0) : __assert_fail ("T.getCXXABI().getKind() != TargetCXXABI::Microsoft && \"Device mangle context does not support Microsoft mangling.\"" , "clang/lib/AST/ASTContext.cpp", 11672, __extension__ __PRETTY_FUNCTION__ )); | |||
| 11673 | switch (T.getCXXABI().getKind()) { | |||
| 11674 | case TargetCXXABI::AppleARM64: | |||
| 11675 | case TargetCXXABI::Fuchsia: | |||
| 11676 | case TargetCXXABI::GenericAArch64: | |||
| 11677 | case TargetCXXABI::GenericItanium: | |||
| 11678 | case TargetCXXABI::GenericARM: | |||
| 11679 | case TargetCXXABI::GenericMIPS: | |||
| 11680 | case TargetCXXABI::iOS: | |||
| 11681 | case TargetCXXABI::WebAssembly: | |||
| 11682 | case TargetCXXABI::WatchOS: | |||
| 11683 | case TargetCXXABI::XL: | |||
| 11684 | return ItaniumMangleContext::create( | |||
| 11685 | *this, getDiagnostics(), | |||
| 11686 | [](ASTContext &, const NamedDecl *ND) -> llvm::Optional<unsigned> { | |||
| 11687 | if (const auto *RD = dyn_cast<CXXRecordDecl>(ND)) | |||
| 11688 | return RD->getDeviceLambdaManglingNumber(); | |||
| 11689 | return llvm::None; | |||
| 11690 | }); | |||
| 11691 | case TargetCXXABI::Microsoft: | |||
| 11692 | return MicrosoftMangleContext::create(*this, getDiagnostics()); | |||
| 11693 | } | |||
| 11694 | llvm_unreachable("Unsupported ABI")::llvm::llvm_unreachable_internal("Unsupported ABI", "clang/lib/AST/ASTContext.cpp" , 11694); | |||
| 11695 | } | |||
| 11696 | ||||
| 11697 | CXXABI::~CXXABI() = default; | |||
| 11698 | ||||
| 11699 | size_t ASTContext::getSideTableAllocatedMemory() const { | |||
| 11700 | return ASTRecordLayouts.getMemorySize() + | |||
| 11701 | llvm::capacity_in_bytes(ObjCLayouts) + | |||
| 11702 | llvm::capacity_in_bytes(KeyFunctions) + | |||
| 11703 | llvm::capacity_in_bytes(ObjCImpls) + | |||
| 11704 | llvm::capacity_in_bytes(BlockVarCopyInits) + | |||
| 11705 | llvm::capacity_in_bytes(DeclAttrs) + | |||
| 11706 | llvm::capacity_in_bytes(TemplateOrInstantiation) + | |||
| 11707 | llvm::capacity_in_bytes(InstantiatedFromUsingDecl) + | |||
| 11708 | llvm::capacity_in_bytes(InstantiatedFromUsingShadowDecl) + | |||
| 11709 | llvm::capacity_in_bytes(InstantiatedFromUnnamedFieldDecl) + | |||
| 11710 | llvm::capacity_in_bytes(OverriddenMethods) + | |||
| 11711 | llvm::capacity_in_bytes(Types) + | |||
| 11712 | llvm::capacity_in_bytes(VariableArrayTypes); | |||
| 11713 | } | |||
| 11714 | ||||
| 11715 | /// getIntTypeForBitwidth - | |||
| 11716 | /// sets integer QualTy according to specified details: | |||
| 11717 | /// bitwidth, signed/unsigned. | |||
| 11718 | /// Returns empty type if there is no appropriate target types. | |||
| 11719 | QualType ASTContext::getIntTypeForBitwidth(unsigned DestWidth, | |||
| 11720 | unsigned Signed) const { | |||
| 11721 | TargetInfo::IntType Ty = getTargetInfo().getIntTypeByWidth(DestWidth, Signed); | |||
| 11722 | CanQualType QualTy = getFromTargetType(Ty); | |||
| 11723 | if (!QualTy && DestWidth == 128) | |||
| 11724 | return Signed ? Int128Ty : UnsignedInt128Ty; | |||
| 11725 | return QualTy; | |||
| 11726 | } | |||
| 11727 | ||||
| 11728 | /// getRealTypeForBitwidth - | |||
| 11729 | /// sets floating point QualTy according to specified bitwidth. | |||
| 11730 | /// Returns empty type if there is no appropriate target types. | |||
| 11731 | QualType ASTContext::getRealTypeForBitwidth(unsigned DestWidth, | |||
| 11732 | FloatModeKind ExplicitType) const { | |||
| 11733 | FloatModeKind Ty = | |||
| 11734 | getTargetInfo().getRealTypeByWidth(DestWidth, ExplicitType); | |||
| 11735 | switch (Ty) { | |||
| 11736 | case FloatModeKind::Float: | |||
| 11737 | return FloatTy; | |||
| 11738 | case FloatModeKind::Double: | |||
| 11739 | return DoubleTy; | |||
| 11740 | case FloatModeKind::LongDouble: | |||
| 11741 | return LongDoubleTy; | |||
| 11742 | case FloatModeKind::Float128: | |||
| 11743 | return Float128Ty; | |||
| 11744 | case FloatModeKind::Ibm128: | |||
| 11745 | return Ibm128Ty; | |||
| 11746 | case FloatModeKind::NoFloat: | |||
| 11747 | return {}; | |||
| 11748 | } | |||
| 11749 | ||||
| 11750 | llvm_unreachable("Unhandled TargetInfo::RealType value")::llvm::llvm_unreachable_internal("Unhandled TargetInfo::RealType value" , "clang/lib/AST/ASTContext.cpp", 11750); | |||
| 11751 | } | |||
| 11752 | ||||
| 11753 | void ASTContext::setManglingNumber(const NamedDecl *ND, unsigned Number) { | |||
| 11754 | if (Number > 1) | |||
| 11755 | MangleNumbers[ND] = Number; | |||
| 11756 | } | |||
| 11757 | ||||
| 11758 | unsigned ASTContext::getManglingNumber(const NamedDecl *ND) const { | |||
| 11759 | auto I = MangleNumbers.find(ND); | |||
| 11760 | return I != MangleNumbers.end() ? I->second : 1; | |||
| 11761 | } | |||
| 11762 | ||||
| 11763 | void ASTContext::setStaticLocalNumber(const VarDecl *VD, unsigned Number) { | |||
| 11764 | if (Number > 1) | |||
| 11765 | StaticLocalNumbers[VD] = Number; | |||
| 11766 | } | |||
| 11767 | ||||
| 11768 | unsigned ASTContext::getStaticLocalNumber(const VarDecl *VD) const { | |||
| 11769 | auto I = StaticLocalNumbers.find(VD); | |||
| 11770 | return I != StaticLocalNumbers.end() ? I->second : 1; | |||
| 11771 | } | |||
| 11772 | ||||
| 11773 | MangleNumberingContext & | |||
| 11774 | ASTContext::getManglingNumberContext(const DeclContext *DC) { | |||
| 11775 | assert(LangOpts.CPlusPlus)(static_cast <bool> (LangOpts.CPlusPlus) ? void (0) : __assert_fail ("LangOpts.CPlusPlus", "clang/lib/AST/ASTContext.cpp", 11775 , __extension__ __PRETTY_FUNCTION__)); // We don't need mangling numbers for plain C. | |||
| 11776 | std::unique_ptr<MangleNumberingContext> &MCtx = MangleNumberingContexts[DC]; | |||
| 11777 | if (!MCtx) | |||
| 11778 | MCtx = createMangleNumberingContext(); | |||
| 11779 | return *MCtx; | |||
| 11780 | } | |||
| 11781 | ||||
| 11782 | MangleNumberingContext & | |||
| 11783 | ASTContext::getManglingNumberContext(NeedExtraManglingDecl_t, const Decl *D) { | |||
| 11784 | assert(LangOpts.CPlusPlus)(static_cast <bool> (LangOpts.CPlusPlus) ? void (0) : __assert_fail ("LangOpts.CPlusPlus", "clang/lib/AST/ASTContext.cpp", 11784 , __extension__ __PRETTY_FUNCTION__)); // We don't need mangling numbers for plain C. | |||
| 11785 | std::unique_ptr<MangleNumberingContext> &MCtx = | |||
| 11786 | ExtraMangleNumberingContexts[D]; | |||
| 11787 | if (!MCtx) | |||
| 11788 | MCtx = createMangleNumberingContext(); | |||
| 11789 | return *MCtx; | |||
| 11790 | } | |||
| 11791 | ||||
| 11792 | std::unique_ptr<MangleNumberingContext> | |||
| 11793 | ASTContext::createMangleNumberingContext() const { | |||
| 11794 | return ABI->createMangleNumberingContext(); | |||
| 11795 | } | |||
| 11796 | ||||
| 11797 | const CXXConstructorDecl * | |||
| 11798 | ASTContext::getCopyConstructorForExceptionObject(CXXRecordDecl *RD) { | |||
| 11799 | return ABI->getCopyConstructorForExceptionObject( | |||
| 11800 | cast<CXXRecordDecl>(RD->getFirstDecl())); | |||
| 11801 | } | |||
| 11802 | ||||
| 11803 | void ASTContext::addCopyConstructorForExceptionObject(CXXRecordDecl *RD, | |||
| 11804 | CXXConstructorDecl *CD) { | |||
| 11805 | return ABI->addCopyConstructorForExceptionObject( | |||
| 11806 | cast<CXXRecordDecl>(RD->getFirstDecl()), | |||
| 11807 | cast<CXXConstructorDecl>(CD->getFirstDecl())); | |||
| 11808 | } | |||
| 11809 | ||||
| 11810 | void ASTContext::addTypedefNameForUnnamedTagDecl(TagDecl *TD, | |||
| 11811 | TypedefNameDecl *DD) { | |||
| 11812 | return ABI->addTypedefNameForUnnamedTagDecl(TD, DD); | |||
| 11813 | } | |||
| 11814 | ||||
| 11815 | TypedefNameDecl * | |||
| 11816 | ASTContext::getTypedefNameForUnnamedTagDecl(const TagDecl *TD) { | |||
| 11817 | return ABI->getTypedefNameForUnnamedTagDecl(TD); | |||
| 11818 | } | |||
| 11819 | ||||
| 11820 | void ASTContext::addDeclaratorForUnnamedTagDecl(TagDecl *TD, | |||
| 11821 | DeclaratorDecl *DD) { | |||
| 11822 | return ABI->addDeclaratorForUnnamedTagDecl(TD, DD); | |||
| 11823 | } | |||
| 11824 | ||||
| 11825 | DeclaratorDecl *ASTContext::getDeclaratorForUnnamedTagDecl(const TagDecl *TD) { | |||
| 11826 | return ABI->getDeclaratorForUnnamedTagDecl(TD); | |||
| 11827 | } | |||
| 11828 | ||||
| 11829 | void ASTContext::setParameterIndex(const ParmVarDecl *D, unsigned int index) { | |||
| 11830 | ParamIndices[D] = index; | |||
| 11831 | } | |||
| 11832 | ||||
| 11833 | unsigned ASTContext::getParameterIndex(const ParmVarDecl *D) const { | |||
| 11834 | ParameterIndexTable::const_iterator I = ParamIndices.find(D); | |||
| 11835 | assert(I != ParamIndices.end() &&(static_cast <bool> (I != ParamIndices.end() && "ParmIndices lacks entry set by ParmVarDecl") ? void (0) : __assert_fail ("I != ParamIndices.end() && \"ParmIndices lacks entry set by ParmVarDecl\"" , "clang/lib/AST/ASTContext.cpp", 11836, __extension__ __PRETTY_FUNCTION__ )) | |||
| 11836 | "ParmIndices lacks entry set by ParmVarDecl")(static_cast <bool> (I != ParamIndices.end() && "ParmIndices lacks entry set by ParmVarDecl") ? void (0) : __assert_fail ("I != ParamIndices.end() && \"ParmIndices lacks entry set by ParmVarDecl\"" , "clang/lib/AST/ASTContext.cpp", 11836, __extension__ __PRETTY_FUNCTION__ )); | |||
| 11837 | return I->second; | |||
| 11838 | } | |||
| 11839 | ||||
| 11840 | QualType ASTContext::getStringLiteralArrayType(QualType EltTy, | |||
| 11841 | unsigned Length) const { | |||
| 11842 | // A C++ string literal has a const-qualified element type (C++ 2.13.4p1). | |||
| 11843 | if (getLangOpts().CPlusPlus || getLangOpts().ConstStrings) | |||
| 11844 | EltTy = EltTy.withConst(); | |||
| 11845 | ||||
| 11846 | EltTy = adjustStringLiteralBaseType(EltTy); | |||
| 11847 | ||||
| 11848 | // Get an array type for the string, according to C99 6.4.5. This includes | |||
| 11849 | // the null terminator character. | |||
| 11850 | return getConstantArrayType(EltTy, llvm::APInt(32, Length + 1), nullptr, | |||
| 11851 | ArrayType::Normal, /*IndexTypeQuals*/ 0); | |||
| 11852 | } | |||
| 11853 | ||||
| 11854 | StringLiteral * | |||
| 11855 | ASTContext::getPredefinedStringLiteralFromCache(StringRef Key) const { | |||
| 11856 | StringLiteral *&Result = StringLiteralCache[Key]; | |||
| 11857 | if (!Result) | |||
| 11858 | Result = StringLiteral::Create( | |||
| 11859 | *this, Key, StringLiteral::Ascii, | |||
| 11860 | /*Pascal*/ false, getStringLiteralArrayType(CharTy, Key.size()), | |||
| 11861 | SourceLocation()); | |||
| 11862 | return Result; | |||
| 11863 | } | |||
| 11864 | ||||
| 11865 | MSGuidDecl * | |||
| 11866 | ASTContext::getMSGuidDecl(MSGuidDecl::Parts Parts) const { | |||
| 11867 | assert(MSGuidTagDecl && "building MS GUID without MS extensions?")(static_cast <bool> (MSGuidTagDecl && "building MS GUID without MS extensions?" ) ? void (0) : __assert_fail ("MSGuidTagDecl && \"building MS GUID without MS extensions?\"" , "clang/lib/AST/ASTContext.cpp", 11867, __extension__ __PRETTY_FUNCTION__ )); | |||
| 11868 | ||||
| 11869 | llvm::FoldingSetNodeID ID; | |||
| 11870 | MSGuidDecl::Profile(ID, Parts); | |||
| 11871 | ||||
| 11872 | void *InsertPos; | |||
| 11873 | if (MSGuidDecl *Existing = MSGuidDecls.FindNodeOrInsertPos(ID, InsertPos)) | |||
| 11874 | return Existing; | |||
| 11875 | ||||
| 11876 | QualType GUIDType = getMSGuidType().withConst(); | |||
| 11877 | MSGuidDecl *New = MSGuidDecl::Create(*this, GUIDType, Parts); | |||
| 11878 | MSGuidDecls.InsertNode(New, InsertPos); | |||
| 11879 | return New; | |||
| 11880 | } | |||
| 11881 | ||||
| 11882 | UnnamedGlobalConstantDecl * | |||
| 11883 | ASTContext::getUnnamedGlobalConstantDecl(QualType Ty, | |||
| 11884 | const APValue &APVal) const { | |||
| 11885 | llvm::FoldingSetNodeID ID; | |||
| 11886 | UnnamedGlobalConstantDecl::Profile(ID, Ty, APVal); | |||
| 11887 | ||||
| 11888 | void *InsertPos; | |||
| 11889 | if (UnnamedGlobalConstantDecl *Existing = | |||
| 11890 | UnnamedGlobalConstantDecls.FindNodeOrInsertPos(ID, InsertPos)) | |||
| 11891 | return Existing; | |||
| 11892 | ||||
| 11893 | UnnamedGlobalConstantDecl *New = | |||
| 11894 | UnnamedGlobalConstantDecl::Create(*this, Ty, APVal); | |||
| 11895 | UnnamedGlobalConstantDecls.InsertNode(New, InsertPos); | |||
| 11896 | return New; | |||
| 11897 | } | |||
| 11898 | ||||
| 11899 | TemplateParamObjectDecl * | |||
| 11900 | ASTContext::getTemplateParamObjectDecl(QualType T, const APValue &V) const { | |||
| 11901 | assert(T->isRecordType() && "template param object of unexpected type")(static_cast <bool> (T->isRecordType() && "template param object of unexpected type" ) ? void (0) : __assert_fail ("T->isRecordType() && \"template param object of unexpected type\"" , "clang/lib/AST/ASTContext.cpp", 11901, __extension__ __PRETTY_FUNCTION__ )); | |||
| 11902 | ||||
| 11903 | // C++ [temp.param]p8: | |||
| 11904 | // [...] a static storage duration object of type 'const T' [...] | |||
| 11905 | T.addConst(); | |||
| 11906 | ||||
| 11907 | llvm::FoldingSetNodeID ID; | |||
| 11908 | TemplateParamObjectDecl::Profile(ID, T, V); | |||
| 11909 | ||||
| 11910 | void *InsertPos; | |||
| 11911 | if (TemplateParamObjectDecl *Existing = | |||
| 11912 | TemplateParamObjectDecls.FindNodeOrInsertPos(ID, InsertPos)) | |||
| 11913 | return Existing; | |||
| 11914 | ||||
| 11915 | TemplateParamObjectDecl *New = TemplateParamObjectDecl::Create(*this, T, V); | |||
| 11916 | TemplateParamObjectDecls.InsertNode(New, InsertPos); | |||
| 11917 | return New; | |||
| 11918 | } | |||
| 11919 | ||||
| 11920 | bool ASTContext::AtomicUsesUnsupportedLibcall(const AtomicExpr *E) const { | |||
| 11921 | const llvm::Triple &T = getTargetInfo().getTriple(); | |||
| 11922 | if (!T.isOSDarwin()) | |||
| 11923 | return false; | |||
| 11924 | ||||
| 11925 | if (!(T.isiOS() && T.isOSVersionLT(7)) && | |||
| 11926 | !(T.isMacOSX() && T.isOSVersionLT(10, 9))) | |||
| 11927 | return false; | |||
| 11928 | ||||
| 11929 | QualType AtomicTy = E->getPtr()->getType()->getPointeeType(); | |||
| 11930 | CharUnits sizeChars = getTypeSizeInChars(AtomicTy); | |||
| 11931 | uint64_t Size = sizeChars.getQuantity(); | |||
| 11932 | CharUnits alignChars = getTypeAlignInChars(AtomicTy); | |||
| 11933 | unsigned Align = alignChars.getQuantity(); | |||
| 11934 | unsigned MaxInlineWidthInBits = getTargetInfo().getMaxAtomicInlineWidth(); | |||
| 11935 | return (Size != Align || toBits(sizeChars) > MaxInlineWidthInBits); | |||
| 11936 | } | |||
| 11937 | ||||
| 11938 | bool | |||
| 11939 | ASTContext::ObjCMethodsAreEqual(const ObjCMethodDecl *MethodDecl, | |||
| 11940 | const ObjCMethodDecl *MethodImpl) { | |||
| 11941 | // No point trying to match an unavailable/deprecated mothod. | |||
| 11942 | if (MethodDecl->hasAttr<UnavailableAttr>() | |||
| 11943 | || MethodDecl->hasAttr<DeprecatedAttr>()) | |||
| 11944 | return false; | |||
| 11945 | if (MethodDecl->getObjCDeclQualifier() != | |||
| 11946 | MethodImpl->getObjCDeclQualifier()) | |||
| 11947 | return false; | |||
| 11948 | if (!hasSameType(MethodDecl->getReturnType(), MethodImpl->getReturnType())) | |||
| 11949 | return false; | |||
| 11950 | ||||
| 11951 | if (MethodDecl->param_size() != MethodImpl->param_size()) | |||
| 11952 | return false; | |||
| 11953 | ||||
| 11954 | for (ObjCMethodDecl::param_const_iterator IM = MethodImpl->param_begin(), | |||
| 11955 | IF = MethodDecl->param_begin(), EM = MethodImpl->param_end(), | |||
| 11956 | EF = MethodDecl->param_end(); | |||
| 11957 | IM != EM && IF != EF; ++IM, ++IF) { | |||
| 11958 | const ParmVarDecl *DeclVar = (*IF); | |||
| 11959 | const ParmVarDecl *ImplVar = (*IM); | |||
| 11960 | if (ImplVar->getObjCDeclQualifier() != DeclVar->getObjCDeclQualifier()) | |||
| 11961 | return false; | |||
| 11962 | if (!hasSameType(DeclVar->getType(), ImplVar->getType())) | |||
| 11963 | return false; | |||
| 11964 | } | |||
| 11965 | ||||
| 11966 | return (MethodDecl->isVariadic() == MethodImpl->isVariadic()); | |||
| 11967 | } | |||
| 11968 | ||||
| 11969 | uint64_t ASTContext::getTargetNullPointerValue(QualType QT) const { | |||
| 11970 | LangAS AS; | |||
| 11971 | if (QT->getUnqualifiedDesugaredType()->isNullPtrType()) | |||
| 11972 | AS = LangAS::Default; | |||
| 11973 | else | |||
| 11974 | AS = QT->getPointeeType().getAddressSpace(); | |||
| 11975 | ||||
| 11976 | return getTargetInfo().getNullPointerValue(AS); | |||
| 11977 | } | |||
| 11978 | ||||
| 11979 | unsigned ASTContext::getTargetAddressSpace(QualType T) const { | |||
| 11980 | // Return the address space for the type. If the type is a | |||
| 11981 | // function type without an address space qualifier, the | |||
| 11982 | // program address space is used. Otherwise, the target picks | |||
| 11983 | // the best address space based on the type information | |||
| 11984 | return T->isFunctionType() && !T.hasAddressSpace() | |||
| 11985 | ? getTargetInfo().getProgramAddressSpace() | |||
| 11986 | : getTargetAddressSpace(T.getQualifiers()); | |||
| 11987 | } | |||
| 11988 | ||||
| 11989 | unsigned ASTContext::getTargetAddressSpace(Qualifiers Q) const { | |||
| 11990 | return getTargetAddressSpace(Q.getAddressSpace()); | |||
| 11991 | } | |||
| 11992 | ||||
| 11993 | unsigned ASTContext::getTargetAddressSpace(LangAS AS) const { | |||
| 11994 | if (isTargetAddressSpace(AS)) | |||
| 11995 | return toTargetAddressSpace(AS); | |||
| 11996 | else | |||
| 11997 | return (*AddrSpaceMap)[(unsigned)AS]; | |||
| 11998 | } | |||
| 11999 | ||||
| 12000 | QualType ASTContext::getCorrespondingSaturatedType(QualType Ty) const { | |||
| 12001 | assert(Ty->isFixedPointType())(static_cast <bool> (Ty->isFixedPointType()) ? void ( 0) : __assert_fail ("Ty->isFixedPointType()", "clang/lib/AST/ASTContext.cpp" , 12001, __extension__ __PRETTY_FUNCTION__)); | |||
| 12002 | ||||
| 12003 | if (Ty->isSaturatedFixedPointType()) return Ty; | |||
| 12004 | ||||
| 12005 | switch (Ty->castAs<BuiltinType>()->getKind()) { | |||
| 12006 | default: | |||
| 12007 | llvm_unreachable("Not a fixed point type!")::llvm::llvm_unreachable_internal("Not a fixed point type!", "clang/lib/AST/ASTContext.cpp" , 12007); | |||
| 12008 | case BuiltinType::ShortAccum: | |||
| 12009 | return SatShortAccumTy; | |||
| 12010 | case BuiltinType::Accum: | |||
| 12011 | return SatAccumTy; | |||
| 12012 | case BuiltinType::LongAccum: | |||
| 12013 | return SatLongAccumTy; | |||
| 12014 | case BuiltinType::UShortAccum: | |||
| 12015 | return SatUnsignedShortAccumTy; | |||
| 12016 | case BuiltinType::UAccum: | |||
| 12017 | return SatUnsignedAccumTy; | |||
| 12018 | case BuiltinType::ULongAccum: | |||
| 12019 | return SatUnsignedLongAccumTy; | |||
| 12020 | case BuiltinType::ShortFract: | |||
| 12021 | return SatShortFractTy; | |||
| 12022 | case BuiltinType::Fract: | |||
| 12023 | return SatFractTy; | |||
| 12024 | case BuiltinType::LongFract: | |||
| 12025 | return SatLongFractTy; | |||
| 12026 | case BuiltinType::UShortFract: | |||
| 12027 | return SatUnsignedShortFractTy; | |||
| 12028 | case BuiltinType::UFract: | |||
| 12029 | return SatUnsignedFractTy; | |||
| 12030 | case BuiltinType::ULongFract: | |||
| 12031 | return SatUnsignedLongFractTy; | |||
| 12032 | } | |||
| 12033 | } | |||
| 12034 | ||||
| 12035 | LangAS ASTContext::getLangASForBuiltinAddressSpace(unsigned AS) const { | |||
| 12036 | if (LangOpts.OpenCL) | |||
| 12037 | return getTargetInfo().getOpenCLBuiltinAddressSpace(AS); | |||
| 12038 | ||||
| 12039 | if (LangOpts.CUDA) | |||
| 12040 | return getTargetInfo().getCUDABuiltinAddressSpace(AS); | |||
| 12041 | ||||
| 12042 | return getLangASFromTargetAS(AS); | |||
| 12043 | } | |||
| 12044 | ||||
| 12045 | // Explicitly instantiate this in case a Redeclarable<T> is used from a TU that | |||
| 12046 | // doesn't include ASTContext.h | |||
| 12047 | template | |||
| 12048 | clang::LazyGenerationalUpdatePtr< | |||
| 12049 | const Decl *, Decl *, &ExternalASTSource::CompleteRedeclChain>::ValueType | |||
| 12050 | clang::LazyGenerationalUpdatePtr< | |||
| 12051 | const Decl *, Decl *, &ExternalASTSource::CompleteRedeclChain>::makeValue( | |||
| 12052 | const clang::ASTContext &Ctx, Decl *Value); | |||
| 12053 | ||||
| 12054 | unsigned char ASTContext::getFixedPointScale(QualType Ty) const { | |||
| 12055 | assert(Ty->isFixedPointType())(static_cast <bool> (Ty->isFixedPointType()) ? void ( 0) : __assert_fail ("Ty->isFixedPointType()", "clang/lib/AST/ASTContext.cpp" , 12055, __extension__ __PRETTY_FUNCTION__)); | |||
| 12056 | ||||
| 12057 | const TargetInfo &Target = getTargetInfo(); | |||
| 12058 | switch (Ty->castAs<BuiltinType>()->getKind()) { | |||
| 12059 | default: | |||
| 12060 | llvm_unreachable("Not a fixed point type!")::llvm::llvm_unreachable_internal("Not a fixed point type!", "clang/lib/AST/ASTContext.cpp" , 12060); | |||
| 12061 | case BuiltinType::ShortAccum: | |||
| 12062 | case BuiltinType::SatShortAccum: | |||
| 12063 | return Target.getShortAccumScale(); | |||
| 12064 | case BuiltinType::Accum: | |||
| 12065 | case BuiltinType::SatAccum: | |||
| 12066 | return Target.getAccumScale(); | |||
| 12067 | case BuiltinType::LongAccum: | |||
| 12068 | case BuiltinType::SatLongAccum: | |||
| 12069 | return Target.getLongAccumScale(); | |||
| 12070 | case BuiltinType::UShortAccum: | |||
| 12071 | case BuiltinType::SatUShortAccum: | |||
| 12072 | return Target.getUnsignedShortAccumScale(); | |||
| 12073 | case BuiltinType::UAccum: | |||
| 12074 | case BuiltinType::SatUAccum: | |||
| 12075 | return Target.getUnsignedAccumScale(); | |||
| 12076 | case BuiltinType::ULongAccum: | |||
| 12077 | case BuiltinType::SatULongAccum: | |||
| 12078 | return Target.getUnsignedLongAccumScale(); | |||
| 12079 | case BuiltinType::ShortFract: | |||
| 12080 | case BuiltinType::SatShortFract: | |||
| 12081 | return Target.getShortFractScale(); | |||
| 12082 | case BuiltinType::Fract: | |||
| 12083 | case BuiltinType::SatFract: | |||
| 12084 | return Target.getFractScale(); | |||
| 12085 | case BuiltinType::LongFract: | |||
| 12086 | case BuiltinType::SatLongFract: | |||
| 12087 | return Target.getLongFractScale(); | |||
| 12088 | case BuiltinType::UShortFract: | |||
| 12089 | case BuiltinType::SatUShortFract: | |||
| 12090 | return Target.getUnsignedShortFractScale(); | |||
| 12091 | case BuiltinType::UFract: | |||
| 12092 | case BuiltinType::SatUFract: | |||
| 12093 | return Target.getUnsignedFractScale(); | |||
| 12094 | case BuiltinType::ULongFract: | |||
| 12095 | case BuiltinType::SatULongFract: | |||
| 12096 | return Target.getUnsignedLongFractScale(); | |||
| 12097 | } | |||
| 12098 | } | |||
| 12099 | ||||
| 12100 | unsigned char ASTContext::getFixedPointIBits(QualType Ty) const { | |||
| 12101 | assert(Ty->isFixedPointType())(static_cast <bool> (Ty->isFixedPointType()) ? void ( 0) : __assert_fail ("Ty->isFixedPointType()", "clang/lib/AST/ASTContext.cpp" , 12101, __extension__ __PRETTY_FUNCTION__)); | |||
| 12102 | ||||
| 12103 | const TargetInfo &Target = getTargetInfo(); | |||
| 12104 | switch (Ty->castAs<BuiltinType>()->getKind()) { | |||
| 12105 | default: | |||
| 12106 | llvm_unreachable("Not a fixed point type!")::llvm::llvm_unreachable_internal("Not a fixed point type!", "clang/lib/AST/ASTContext.cpp" , 12106); | |||
| 12107 | case BuiltinType::ShortAccum: | |||
| 12108 | case BuiltinType::SatShortAccum: | |||
| 12109 | return Target.getShortAccumIBits(); | |||
| 12110 | case BuiltinType::Accum: | |||
| 12111 | case BuiltinType::SatAccum: | |||
| 12112 | return Target.getAccumIBits(); | |||
| 12113 | case BuiltinType::LongAccum: | |||
| 12114 | case BuiltinType::SatLongAccum: | |||
| 12115 | return Target.getLongAccumIBits(); | |||
| 12116 | case BuiltinType::UShortAccum: | |||
| 12117 | case BuiltinType::SatUShortAccum: | |||
| 12118 | return Target.getUnsignedShortAccumIBits(); | |||
| 12119 | case BuiltinType::UAccum: | |||
| 12120 | case BuiltinType::SatUAccum: | |||
| 12121 | return Target.getUnsignedAccumIBits(); | |||
| 12122 | case BuiltinType::ULongAccum: | |||
| 12123 | case BuiltinType::SatULongAccum: | |||
| 12124 | return Target.getUnsignedLongAccumIBits(); | |||
| 12125 | case BuiltinType::ShortFract: | |||
| 12126 | case BuiltinType::SatShortFract: | |||
| 12127 | case BuiltinType::Fract: | |||
| 12128 | case BuiltinType::SatFract: | |||
| 12129 | case BuiltinType::LongFract: | |||
| 12130 | case BuiltinType::SatLongFract: | |||
| 12131 | case BuiltinType::UShortFract: | |||
| 12132 | case BuiltinType::SatUShortFract: | |||
| 12133 | case BuiltinType::UFract: | |||
| 12134 | case BuiltinType::SatUFract: | |||
| 12135 | case BuiltinType::ULongFract: | |||
| 12136 | case BuiltinType::SatULongFract: | |||
| 12137 | return 0; | |||
| 12138 | } | |||
| 12139 | } | |||
| 12140 | ||||
| 12141 | llvm::FixedPointSemantics | |||
| 12142 | ASTContext::getFixedPointSemantics(QualType Ty) const { | |||
| 12143 | assert((Ty->isFixedPointType() || Ty->isIntegerType()) &&(static_cast <bool> ((Ty->isFixedPointType() || Ty-> isIntegerType()) && "Can only get the fixed point semantics for a " "fixed point or integer type.") ? void (0) : __assert_fail ( "(Ty->isFixedPointType() || Ty->isIntegerType()) && \"Can only get the fixed point semantics for a \" \"fixed point or integer type.\"" , "clang/lib/AST/ASTContext.cpp", 12145, __extension__ __PRETTY_FUNCTION__ )) | |||
| 12144 | "Can only get the fixed point semantics for a "(static_cast <bool> ((Ty->isFixedPointType() || Ty-> isIntegerType()) && "Can only get the fixed point semantics for a " "fixed point or integer type.") ? void (0) : __assert_fail ( "(Ty->isFixedPointType() || Ty->isIntegerType()) && \"Can only get the fixed point semantics for a \" \"fixed point or integer type.\"" , "clang/lib/AST/ASTContext.cpp", 12145, __extension__ __PRETTY_FUNCTION__ )) | |||
| 12145 | "fixed point or integer type.")(static_cast <bool> ((Ty->isFixedPointType() || Ty-> isIntegerType()) && "Can only get the fixed point semantics for a " "fixed point or integer type.") ? void (0) : __assert_fail ( "(Ty->isFixedPointType() || Ty->isIntegerType()) && \"Can only get the fixed point semantics for a \" \"fixed point or integer type.\"" , "clang/lib/AST/ASTContext.cpp", 12145, __extension__ __PRETTY_FUNCTION__ )); | |||
| 12146 | if (Ty->isIntegerType()) | |||
| 12147 | return llvm::FixedPointSemantics::GetIntegerSemantics( | |||
| 12148 | getIntWidth(Ty), Ty->isSignedIntegerType()); | |||
| 12149 | ||||
| 12150 | bool isSigned = Ty->isSignedFixedPointType(); | |||
| 12151 | return llvm::FixedPointSemantics( | |||
| 12152 | static_cast<unsigned>(getTypeSize(Ty)), getFixedPointScale(Ty), isSigned, | |||
| 12153 | Ty->isSaturatedFixedPointType(), | |||
| 12154 | !isSigned && getTargetInfo().doUnsignedFixedPointTypesHavePadding()); | |||
| 12155 | } | |||
| 12156 | ||||
| 12157 | llvm::APFixedPoint ASTContext::getFixedPointMax(QualType Ty) const { | |||
| 12158 | assert(Ty->isFixedPointType())(static_cast <bool> (Ty->isFixedPointType()) ? void ( 0) : __assert_fail ("Ty->isFixedPointType()", "clang/lib/AST/ASTContext.cpp" , 12158, __extension__ __PRETTY_FUNCTION__)); | |||
| 12159 | return llvm::APFixedPoint::getMax(getFixedPointSemantics(Ty)); | |||
| 12160 | } | |||
| 12161 | ||||
| 12162 | llvm::APFixedPoint ASTContext::getFixedPointMin(QualType Ty) const { | |||
| 12163 | assert(Ty->isFixedPointType())(static_cast <bool> (Ty->isFixedPointType()) ? void ( 0) : __assert_fail ("Ty->isFixedPointType()", "clang/lib/AST/ASTContext.cpp" , 12163, __extension__ __PRETTY_FUNCTION__)); | |||
| 12164 | return llvm::APFixedPoint::getMin(getFixedPointSemantics(Ty)); | |||
| 12165 | } | |||
| 12166 | ||||
| 12167 | QualType ASTContext::getCorrespondingSignedFixedPointType(QualType Ty) const { | |||
| 12168 | assert(Ty->isUnsignedFixedPointType() &&(static_cast <bool> (Ty->isUnsignedFixedPointType() && "Expected unsigned fixed point type") ? void (0) : __assert_fail ("Ty->isUnsignedFixedPointType() && \"Expected unsigned fixed point type\"" , "clang/lib/AST/ASTContext.cpp", 12169, __extension__ __PRETTY_FUNCTION__ )) | |||
| 12169 | "Expected unsigned fixed point type")(static_cast <bool> (Ty->isUnsignedFixedPointType() && "Expected unsigned fixed point type") ? void (0) : __assert_fail ("Ty->isUnsignedFixedPointType() && \"Expected unsigned fixed point type\"" , "clang/lib/AST/ASTContext.cpp", 12169, __extension__ __PRETTY_FUNCTION__ )); | |||
| 12170 | ||||
| 12171 | switch (Ty->castAs<BuiltinType>()->getKind()) { | |||
| 12172 | case BuiltinType::UShortAccum: | |||
| 12173 | return ShortAccumTy; | |||
| 12174 | case BuiltinType::UAccum: | |||
| 12175 | return AccumTy; | |||
| 12176 | case BuiltinType::ULongAccum: | |||
| 12177 | return LongAccumTy; | |||
| 12178 | case BuiltinType::SatUShortAccum: | |||
| 12179 | return SatShortAccumTy; | |||
| 12180 | case BuiltinType::SatUAccum: | |||
| 12181 | return SatAccumTy; | |||
| 12182 | case BuiltinType::SatULongAccum: | |||
| 12183 | return SatLongAccumTy; | |||
| 12184 | case BuiltinType::UShortFract: | |||
| 12185 | return ShortFractTy; | |||
| 12186 | case BuiltinType::UFract: | |||
| 12187 | return FractTy; | |||
| 12188 | case BuiltinType::ULongFract: | |||
| 12189 | return LongFractTy; | |||
| 12190 | case BuiltinType::SatUShortFract: | |||
| 12191 | return SatShortFractTy; | |||
| 12192 | case BuiltinType::SatUFract: | |||
| 12193 | return SatFractTy; | |||
| 12194 | case BuiltinType::SatULongFract: | |||
| 12195 | return SatLongFractTy; | |||
| 12196 | default: | |||
| 12197 | llvm_unreachable("Unexpected unsigned fixed point type")::llvm::llvm_unreachable_internal("Unexpected unsigned fixed point type" , "clang/lib/AST/ASTContext.cpp", 12197); | |||
| 12198 | } | |||
| 12199 | } | |||
| 12200 | ||||
| 12201 | ParsedTargetAttr | |||
| 12202 | ASTContext::filterFunctionTargetAttrs(const TargetAttr *TD) const { | |||
| 12203 | assert(TD != nullptr)(static_cast <bool> (TD != nullptr) ? void (0) : __assert_fail ("TD != nullptr", "clang/lib/AST/ASTContext.cpp", 12203, __extension__ __PRETTY_FUNCTION__)); | |||
| 12204 | ParsedTargetAttr ParsedAttr = TD->parse(); | |||
| 12205 | ||||
| 12206 | llvm::erase_if(ParsedAttr.Features, [&](const std::string &Feat) { | |||
| 12207 | return !Target->isValidFeatureName(StringRef{Feat}.substr(1)); | |||
| 12208 | }); | |||
| 12209 | return ParsedAttr; | |||
| 12210 | } | |||
| 12211 | ||||
| 12212 | void ASTContext::getFunctionFeatureMap(llvm::StringMap<bool> &FeatureMap, | |||
| 12213 | const FunctionDecl *FD) const { | |||
| 12214 | if (FD) | |||
| 12215 | getFunctionFeatureMap(FeatureMap, GlobalDecl().getWithDecl(FD)); | |||
| 12216 | else | |||
| 12217 | Target->initFeatureMap(FeatureMap, getDiagnostics(), | |||
| 12218 | Target->getTargetOpts().CPU, | |||
| 12219 | Target->getTargetOpts().Features); | |||
| 12220 | } | |||
| 12221 | ||||
| 12222 | // Fills in the supplied string map with the set of target features for the | |||
| 12223 | // passed in function. | |||
| 12224 | void ASTContext::getFunctionFeatureMap(llvm::StringMap<bool> &FeatureMap, | |||
| 12225 | GlobalDecl GD) const { | |||
| 12226 | StringRef TargetCPU = Target->getTargetOpts().CPU; | |||
| 12227 | const FunctionDecl *FD = GD.getDecl()->getAsFunction(); | |||
| 12228 | if (const auto *TD = FD->getAttr<TargetAttr>()) { | |||
| 12229 | ParsedTargetAttr ParsedAttr = filterFunctionTargetAttrs(TD); | |||
| 12230 | ||||
| 12231 | // Make a copy of the features as passed on the command line into the | |||
| 12232 | // beginning of the additional features from the function to override. | |||
| 12233 | ParsedAttr.Features.insert( | |||
| 12234 | ParsedAttr.Features.begin(), | |||
| 12235 | Target->getTargetOpts().FeaturesAsWritten.begin(), | |||
| 12236 | Target->getTargetOpts().FeaturesAsWritten.end()); | |||
| 12237 | ||||
| 12238 | if (ParsedAttr.Architecture != "" && | |||
| 12239 | Target->isValidCPUName(ParsedAttr.Architecture)) | |||
| 12240 | TargetCPU = ParsedAttr.Architecture; | |||
| 12241 | ||||
| 12242 | // Now populate the feature map, first with the TargetCPU which is either | |||
| 12243 | // the default or a new one from the target attribute string. Then we'll use | |||
| 12244 | // the passed in features (FeaturesAsWritten) along with the new ones from | |||
| 12245 | // the attribute. | |||
| 12246 | Target->initFeatureMap(FeatureMap, getDiagnostics(), TargetCPU, | |||
| 12247 | ParsedAttr.Features); | |||
| 12248 | } else if (const auto *SD = FD->getAttr<CPUSpecificAttr>()) { | |||
| 12249 | llvm::SmallVector<StringRef, 32> FeaturesTmp; | |||
| 12250 | Target->getCPUSpecificCPUDispatchFeatures( | |||
| 12251 | SD->getCPUName(GD.getMultiVersionIndex())->getName(), FeaturesTmp); | |||
| 12252 | std::vector<std::string> Features(FeaturesTmp.begin(), FeaturesTmp.end()); | |||
| 12253 | Features.insert(Features.begin(), | |||
| 12254 | Target->getTargetOpts().FeaturesAsWritten.begin(), | |||
| 12255 | Target->getTargetOpts().FeaturesAsWritten.end()); | |||
| 12256 | Target->initFeatureMap(FeatureMap, getDiagnostics(), TargetCPU, Features); | |||
| 12257 | } else if (const auto *TC = FD->getAttr<TargetClonesAttr>()) { | |||
| 12258 | std::vector<std::string> Features; | |||
| 12259 | StringRef VersionStr = TC->getFeatureStr(GD.getMultiVersionIndex()); | |||
| 12260 | if (VersionStr.startswith("arch=")) | |||
| 12261 | TargetCPU = VersionStr.drop_front(sizeof("arch=") - 1); | |||
| 12262 | else if (VersionStr != "default") | |||
| 12263 | Features.push_back((StringRef{"+"} + VersionStr).str()); | |||
| 12264 | ||||
| 12265 | Target->initFeatureMap(FeatureMap, getDiagnostics(), TargetCPU, Features); | |||
| 12266 | } else { | |||
| 12267 | FeatureMap = Target->getTargetOpts().FeatureMap; | |||
| 12268 | } | |||
| 12269 | } | |||
| 12270 | ||||
| 12271 | OMPTraitInfo &ASTContext::getNewOMPTraitInfo() { | |||
| 12272 | OMPTraitInfoVector.emplace_back(new OMPTraitInfo()); | |||
| 12273 | return *OMPTraitInfoVector.back(); | |||
| 12274 | } | |||
| 12275 | ||||
| 12276 | const StreamingDiagnostic &clang:: | |||
| 12277 | operator<<(const StreamingDiagnostic &DB, | |||
| 12278 | const ASTContext::SectionInfo &Section) { | |||
| 12279 | if (Section.Decl) | |||
| 12280 | return DB << Section.Decl; | |||
| 12281 | return DB << "a prior #pragma section"; | |||
| 12282 | } | |||
| 12283 | ||||
| 12284 | bool ASTContext::mayExternalize(const Decl *D) const { | |||
| 12285 | bool IsStaticVar = | |||
| 12286 | isa<VarDecl>(D) && cast<VarDecl>(D)->getStorageClass() == SC_Static; | |||
| 12287 | bool IsExplicitDeviceVar = (D->hasAttr<CUDADeviceAttr>() && | |||
| 12288 | !D->getAttr<CUDADeviceAttr>()->isImplicit()) || | |||
| 12289 | (D->hasAttr<CUDAConstantAttr>() && | |||
| 12290 | !D->getAttr<CUDAConstantAttr>()->isImplicit()); | |||
| 12291 | // CUDA/HIP: static managed variables need to be externalized since it is | |||
| 12292 | // a declaration in IR, therefore cannot have internal linkage. Kernels in | |||
| 12293 | // anonymous name space needs to be externalized to avoid duplicate symbols. | |||
| 12294 | return (IsStaticVar && | |||
| 12295 | (D->hasAttr<HIPManagedAttr>() || IsExplicitDeviceVar)) || | |||
| 12296 | (D->hasAttr<CUDAGlobalAttr>() && D->isInAnonymousNamespace()); | |||
| 12297 | } | |||
| 12298 | ||||
| 12299 | bool ASTContext::shouldExternalize(const Decl *D) const { | |||
| 12300 | return mayExternalize(D) && | |||
| 12301 | (D->hasAttr<HIPManagedAttr>() || D->hasAttr<CUDAGlobalAttr>() || | |||
| 12302 | CUDADeviceVarODRUsedByHost.count(cast<VarDecl>(D))); | |||
| 12303 | } | |||
| 12304 | ||||
| 12305 | StringRef ASTContext::getCUIDHash() const { | |||
| 12306 | if (!CUIDHash.empty()) | |||
| 12307 | return CUIDHash; | |||
| 12308 | if (LangOpts.CUID.empty()) | |||
| 12309 | return StringRef(); | |||
| 12310 | CUIDHash = llvm::utohexstr(llvm::MD5Hash(LangOpts.CUID), /*LowerCase=*/true); | |||
| 12311 | return CUIDHash; | |||
| 12312 | } |