File: | clang/lib/AST/ASTContext.cpp |
Warning: | line 2956, column 12 1st function call argument is an uninitialized value |
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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/ObjCRuntime.h" | |||
60 | #include "clang/Basic/SanitizerBlacklist.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/MathExtras.h" | |||
88 | #include "llvm/Support/raw_ostream.h" | |||
89 | #include <algorithm> | |||
90 | #include <cassert> | |||
91 | #include <cstddef> | |||
92 | #include <cstdint> | |||
93 | #include <cstdlib> | |||
94 | #include <map> | |||
95 | #include <memory> | |||
96 | #include <string> | |||
97 | #include <tuple> | |||
98 | #include <utility> | |||
99 | ||||
100 | using namespace clang; | |||
101 | ||||
102 | enum FloatingRank { | |||
103 | BFloat16Rank, Float16Rank, HalfRank, FloatRank, DoubleRank, LongDoubleRank, Float128Rank | |||
104 | }; | |||
105 | ||||
106 | /// \returns location that is relevant when searching for Doc comments related | |||
107 | /// to \p D. | |||
108 | static SourceLocation getDeclLocForCommentSearch(const Decl *D, | |||
109 | SourceManager &SourceMgr) { | |||
110 | assert(D)((D) ? static_cast<void> (0) : __assert_fail ("D", "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 110, __PRETTY_FUNCTION__)); | |||
111 | ||||
112 | // User can not attach documentation to implicit declarations. | |||
113 | if (D->isImplicit()) | |||
114 | return {}; | |||
115 | ||||
116 | // User can not attach documentation to implicit instantiations. | |||
117 | if (const auto *FD = dyn_cast<FunctionDecl>(D)) { | |||
118 | if (FD->getTemplateSpecializationKind() == TSK_ImplicitInstantiation) | |||
119 | return {}; | |||
120 | } | |||
121 | ||||
122 | if (const auto *VD = dyn_cast<VarDecl>(D)) { | |||
123 | if (VD->isStaticDataMember() && | |||
124 | VD->getTemplateSpecializationKind() == TSK_ImplicitInstantiation) | |||
125 | return {}; | |||
126 | } | |||
127 | ||||
128 | if (const auto *CRD = dyn_cast<CXXRecordDecl>(D)) { | |||
129 | if (CRD->getTemplateSpecializationKind() == TSK_ImplicitInstantiation) | |||
130 | return {}; | |||
131 | } | |||
132 | ||||
133 | if (const auto *CTSD = dyn_cast<ClassTemplateSpecializationDecl>(D)) { | |||
134 | TemplateSpecializationKind TSK = CTSD->getSpecializationKind(); | |||
135 | if (TSK == TSK_ImplicitInstantiation || | |||
136 | TSK == TSK_Undeclared) | |||
137 | return {}; | |||
138 | } | |||
139 | ||||
140 | if (const auto *ED = dyn_cast<EnumDecl>(D)) { | |||
141 | if (ED->getTemplateSpecializationKind() == TSK_ImplicitInstantiation) | |||
142 | return {}; | |||
143 | } | |||
144 | if (const auto *TD = dyn_cast<TagDecl>(D)) { | |||
145 | // When tag declaration (but not definition!) is part of the | |||
146 | // decl-specifier-seq of some other declaration, it doesn't get comment | |||
147 | if (TD->isEmbeddedInDeclarator() && !TD->isCompleteDefinition()) | |||
148 | return {}; | |||
149 | } | |||
150 | // TODO: handle comments for function parameters properly. | |||
151 | if (isa<ParmVarDecl>(D)) | |||
152 | return {}; | |||
153 | ||||
154 | // TODO: we could look up template parameter documentation in the template | |||
155 | // documentation. | |||
156 | if (isa<TemplateTypeParmDecl>(D) || | |||
157 | isa<NonTypeTemplateParmDecl>(D) || | |||
158 | isa<TemplateTemplateParmDecl>(D)) | |||
159 | return {}; | |||
160 | ||||
161 | // Find declaration location. | |||
162 | // For Objective-C declarations we generally don't expect to have multiple | |||
163 | // declarators, thus use declaration starting location as the "declaration | |||
164 | // location". | |||
165 | // For all other declarations multiple declarators are used quite frequently, | |||
166 | // so we use the location of the identifier as the "declaration location". | |||
167 | if (isa<ObjCMethodDecl>(D) || isa<ObjCContainerDecl>(D) || | |||
168 | isa<ObjCPropertyDecl>(D) || | |||
169 | isa<RedeclarableTemplateDecl>(D) || | |||
170 | isa<ClassTemplateSpecializationDecl>(D) || | |||
171 | // Allow association with Y across {} in `typedef struct X {} Y`. | |||
172 | isa<TypedefDecl>(D)) | |||
173 | return D->getBeginLoc(); | |||
174 | else { | |||
175 | const SourceLocation DeclLoc = D->getLocation(); | |||
176 | if (DeclLoc.isMacroID()) { | |||
177 | if (isa<TypedefDecl>(D)) { | |||
178 | // If location of the typedef name is in a macro, it is because being | |||
179 | // declared via a macro. Try using declaration's starting location as | |||
180 | // the "declaration location". | |||
181 | return D->getBeginLoc(); | |||
182 | } else if (const auto *TD = dyn_cast<TagDecl>(D)) { | |||
183 | // If location of the tag decl is inside a macro, but the spelling of | |||
184 | // the tag name comes from a macro argument, it looks like a special | |||
185 | // macro like NS_ENUM is being used to define the tag decl. In that | |||
186 | // case, adjust the source location to the expansion loc so that we can | |||
187 | // attach the comment to the tag decl. | |||
188 | if (SourceMgr.isMacroArgExpansion(DeclLoc) && | |||
189 | TD->isCompleteDefinition()) | |||
190 | return SourceMgr.getExpansionLoc(DeclLoc); | |||
191 | } | |||
192 | } | |||
193 | return DeclLoc; | |||
194 | } | |||
195 | ||||
196 | return {}; | |||
197 | } | |||
198 | ||||
199 | RawComment *ASTContext::getRawCommentForDeclNoCacheImpl( | |||
200 | const Decl *D, const SourceLocation RepresentativeLocForDecl, | |||
201 | const std::map<unsigned, RawComment *> &CommentsInTheFile) const { | |||
202 | // If the declaration doesn't map directly to a location in a file, we | |||
203 | // can't find the comment. | |||
204 | if (RepresentativeLocForDecl.isInvalid() || | |||
205 | !RepresentativeLocForDecl.isFileID()) | |||
206 | return nullptr; | |||
207 | ||||
208 | // If there are no comments anywhere, we won't find anything. | |||
209 | if (CommentsInTheFile.empty()) | |||
210 | return nullptr; | |||
211 | ||||
212 | // Decompose the location for the declaration and find the beginning of the | |||
213 | // file buffer. | |||
214 | const std::pair<FileID, unsigned> DeclLocDecomp = | |||
215 | SourceMgr.getDecomposedLoc(RepresentativeLocForDecl); | |||
216 | ||||
217 | // Slow path. | |||
218 | auto OffsetCommentBehindDecl = | |||
219 | CommentsInTheFile.lower_bound(DeclLocDecomp.second); | |||
220 | ||||
221 | // First check whether we have a trailing comment. | |||
222 | if (OffsetCommentBehindDecl != CommentsInTheFile.end()) { | |||
223 | RawComment *CommentBehindDecl = OffsetCommentBehindDecl->second; | |||
224 | if ((CommentBehindDecl->isDocumentation() || | |||
225 | LangOpts.CommentOpts.ParseAllComments) && | |||
226 | CommentBehindDecl->isTrailingComment() && | |||
227 | (isa<FieldDecl>(D) || isa<EnumConstantDecl>(D) || isa<VarDecl>(D) || | |||
228 | isa<ObjCMethodDecl>(D) || isa<ObjCPropertyDecl>(D))) { | |||
229 | ||||
230 | // Check that Doxygen trailing comment comes after the declaration, starts | |||
231 | // on the same line and in the same file as the declaration. | |||
232 | if (SourceMgr.getLineNumber(DeclLocDecomp.first, DeclLocDecomp.second) == | |||
233 | Comments.getCommentBeginLine(CommentBehindDecl, DeclLocDecomp.first, | |||
234 | OffsetCommentBehindDecl->first)) { | |||
235 | return CommentBehindDecl; | |||
236 | } | |||
237 | } | |||
238 | } | |||
239 | ||||
240 | // The comment just after the declaration was not a trailing comment. | |||
241 | // Let's look at the previous comment. | |||
242 | if (OffsetCommentBehindDecl == CommentsInTheFile.begin()) | |||
243 | return nullptr; | |||
244 | ||||
245 | auto OffsetCommentBeforeDecl = --OffsetCommentBehindDecl; | |||
246 | RawComment *CommentBeforeDecl = OffsetCommentBeforeDecl->second; | |||
247 | ||||
248 | // Check that we actually have a non-member Doxygen comment. | |||
249 | if (!(CommentBeforeDecl->isDocumentation() || | |||
250 | LangOpts.CommentOpts.ParseAllComments) || | |||
251 | CommentBeforeDecl->isTrailingComment()) | |||
252 | return nullptr; | |||
253 | ||||
254 | // Decompose the end of the comment. | |||
255 | const unsigned CommentEndOffset = | |||
256 | Comments.getCommentEndOffset(CommentBeforeDecl); | |||
257 | ||||
258 | // Get the corresponding buffer. | |||
259 | bool Invalid = false; | |||
260 | const char *Buffer = SourceMgr.getBufferData(DeclLocDecomp.first, | |||
261 | &Invalid).data(); | |||
262 | if (Invalid) | |||
263 | return nullptr; | |||
264 | ||||
265 | // Extract text between the comment and declaration. | |||
266 | StringRef Text(Buffer + CommentEndOffset, | |||
267 | DeclLocDecomp.second - CommentEndOffset); | |||
268 | ||||
269 | // There should be no other declarations or preprocessor directives between | |||
270 | // comment and declaration. | |||
271 | if (Text.find_first_of(";{}#@") != StringRef::npos) | |||
272 | return nullptr; | |||
273 | ||||
274 | return CommentBeforeDecl; | |||
275 | } | |||
276 | ||||
277 | RawComment *ASTContext::getRawCommentForDeclNoCache(const Decl *D) const { | |||
278 | const SourceLocation DeclLoc = getDeclLocForCommentSearch(D, SourceMgr); | |||
279 | ||||
280 | // If the declaration doesn't map directly to a location in a file, we | |||
281 | // can't find the comment. | |||
282 | if (DeclLoc.isInvalid() || !DeclLoc.isFileID()) | |||
283 | return nullptr; | |||
284 | ||||
285 | if (ExternalSource && !CommentsLoaded) { | |||
286 | ExternalSource->ReadComments(); | |||
287 | CommentsLoaded = true; | |||
288 | } | |||
289 | ||||
290 | if (Comments.empty()) | |||
291 | return nullptr; | |||
292 | ||||
293 | const FileID File = SourceMgr.getDecomposedLoc(DeclLoc).first; | |||
294 | const auto CommentsInThisFile = Comments.getCommentsInFile(File); | |||
295 | if (!CommentsInThisFile || CommentsInThisFile->empty()) | |||
296 | return nullptr; | |||
297 | ||||
298 | return getRawCommentForDeclNoCacheImpl(D, DeclLoc, *CommentsInThisFile); | |||
299 | } | |||
300 | ||||
301 | void ASTContext::addComment(const RawComment &RC) { | |||
302 | assert(LangOpts.RetainCommentsFromSystemHeaders ||((LangOpts.RetainCommentsFromSystemHeaders || !SourceMgr.isInSystemHeader (RC.getSourceRange().getBegin())) ? static_cast<void> ( 0) : __assert_fail ("LangOpts.RetainCommentsFromSystemHeaders || !SourceMgr.isInSystemHeader(RC.getSourceRange().getBegin())" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 303, __PRETTY_FUNCTION__)) | |||
303 | !SourceMgr.isInSystemHeader(RC.getSourceRange().getBegin()))((LangOpts.RetainCommentsFromSystemHeaders || !SourceMgr.isInSystemHeader (RC.getSourceRange().getBegin())) ? static_cast<void> ( 0) : __assert_fail ("LangOpts.RetainCommentsFromSystemHeaders || !SourceMgr.isInSystemHeader(RC.getSourceRange().getBegin())" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 303, __PRETTY_FUNCTION__)); | |||
304 | Comments.addComment(RC, LangOpts.CommentOpts, BumpAlloc); | |||
305 | } | |||
306 | ||||
307 | /// If we have a 'templated' declaration for a template, adjust 'D' to | |||
308 | /// refer to the actual template. | |||
309 | /// If we have an implicit instantiation, adjust 'D' to refer to template. | |||
310 | static const Decl &adjustDeclToTemplate(const Decl &D) { | |||
311 | if (const auto *FD = dyn_cast<FunctionDecl>(&D)) { | |||
312 | // Is this function declaration part of a function template? | |||
313 | if (const FunctionTemplateDecl *FTD = FD->getDescribedFunctionTemplate()) | |||
314 | return *FTD; | |||
315 | ||||
316 | // Nothing to do if function is not an implicit instantiation. | |||
317 | if (FD->getTemplateSpecializationKind() != TSK_ImplicitInstantiation) | |||
318 | return D; | |||
319 | ||||
320 | // Function is an implicit instantiation of a function template? | |||
321 | if (const FunctionTemplateDecl *FTD = FD->getPrimaryTemplate()) | |||
322 | return *FTD; | |||
323 | ||||
324 | // Function is instantiated from a member definition of a class template? | |||
325 | if (const FunctionDecl *MemberDecl = | |||
326 | FD->getInstantiatedFromMemberFunction()) | |||
327 | return *MemberDecl; | |||
328 | ||||
329 | return D; | |||
330 | } | |||
331 | if (const auto *VD = dyn_cast<VarDecl>(&D)) { | |||
332 | // Static data member is instantiated from a member definition of a class | |||
333 | // template? | |||
334 | if (VD->isStaticDataMember()) | |||
335 | if (const VarDecl *MemberDecl = VD->getInstantiatedFromStaticDataMember()) | |||
336 | return *MemberDecl; | |||
337 | ||||
338 | return D; | |||
339 | } | |||
340 | if (const auto *CRD = dyn_cast<CXXRecordDecl>(&D)) { | |||
341 | // Is this class declaration part of a class template? | |||
342 | if (const ClassTemplateDecl *CTD = CRD->getDescribedClassTemplate()) | |||
343 | return *CTD; | |||
344 | ||||
345 | // Class is an implicit instantiation of a class template or partial | |||
346 | // specialization? | |||
347 | if (const auto *CTSD = dyn_cast<ClassTemplateSpecializationDecl>(CRD)) { | |||
348 | if (CTSD->getSpecializationKind() != TSK_ImplicitInstantiation) | |||
349 | return D; | |||
350 | llvm::PointerUnion<ClassTemplateDecl *, | |||
351 | ClassTemplatePartialSpecializationDecl *> | |||
352 | PU = CTSD->getSpecializedTemplateOrPartial(); | |||
353 | return PU.is<ClassTemplateDecl *>() | |||
354 | ? *static_cast<const Decl *>(PU.get<ClassTemplateDecl *>()) | |||
355 | : *static_cast<const Decl *>( | |||
356 | PU.get<ClassTemplatePartialSpecializationDecl *>()); | |||
357 | } | |||
358 | ||||
359 | // Class is instantiated from a member definition of a class template? | |||
360 | if (const MemberSpecializationInfo *Info = | |||
361 | CRD->getMemberSpecializationInfo()) | |||
362 | return *Info->getInstantiatedFrom(); | |||
363 | ||||
364 | return D; | |||
365 | } | |||
366 | if (const auto *ED = dyn_cast<EnumDecl>(&D)) { | |||
367 | // Enum is instantiated from a member definition of a class template? | |||
368 | if (const EnumDecl *MemberDecl = ED->getInstantiatedFromMemberEnum()) | |||
369 | return *MemberDecl; | |||
370 | ||||
371 | return D; | |||
372 | } | |||
373 | // FIXME: Adjust alias templates? | |||
374 | return D; | |||
375 | } | |||
376 | ||||
377 | const RawComment *ASTContext::getRawCommentForAnyRedecl( | |||
378 | const Decl *D, | |||
379 | const Decl **OriginalDecl) const { | |||
380 | if (!D) { | |||
381 | if (OriginalDecl) | |||
382 | OriginalDecl = nullptr; | |||
383 | return nullptr; | |||
384 | } | |||
385 | ||||
386 | D = &adjustDeclToTemplate(*D); | |||
387 | ||||
388 | // Any comment directly attached to D? | |||
389 | { | |||
390 | auto DeclComment = DeclRawComments.find(D); | |||
391 | if (DeclComment != DeclRawComments.end()) { | |||
392 | if (OriginalDecl) | |||
393 | *OriginalDecl = D; | |||
394 | return DeclComment->second; | |||
395 | } | |||
396 | } | |||
397 | ||||
398 | // Any comment attached to any redeclaration of D? | |||
399 | const Decl *CanonicalD = D->getCanonicalDecl(); | |||
400 | if (!CanonicalD) | |||
401 | return nullptr; | |||
402 | ||||
403 | { | |||
404 | auto RedeclComment = RedeclChainComments.find(CanonicalD); | |||
405 | if (RedeclComment != RedeclChainComments.end()) { | |||
406 | if (OriginalDecl) | |||
407 | *OriginalDecl = RedeclComment->second; | |||
408 | auto CommentAtRedecl = DeclRawComments.find(RedeclComment->second); | |||
409 | assert(CommentAtRedecl != DeclRawComments.end() &&((CommentAtRedecl != DeclRawComments.end() && "This decl is supposed to have comment attached." ) ? static_cast<void> (0) : __assert_fail ("CommentAtRedecl != DeclRawComments.end() && \"This decl is supposed to have comment attached.\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 410, __PRETTY_FUNCTION__)) | |||
410 | "This decl is supposed to have comment attached.")((CommentAtRedecl != DeclRawComments.end() && "This decl is supposed to have comment attached." ) ? static_cast<void> (0) : __assert_fail ("CommentAtRedecl != DeclRawComments.end() && \"This decl is supposed to have comment attached.\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 410, __PRETTY_FUNCTION__)); | |||
411 | return CommentAtRedecl->second; | |||
412 | } | |||
413 | } | |||
414 | ||||
415 | // Any redeclarations of D that we haven't checked for comments yet? | |||
416 | // We can't use DenseMap::iterator directly since it'd get invalid. | |||
417 | auto LastCheckedRedecl = [this, CanonicalD]() -> const Decl * { | |||
418 | auto LookupRes = CommentlessRedeclChains.find(CanonicalD); | |||
419 | if (LookupRes != CommentlessRedeclChains.end()) | |||
420 | return LookupRes->second; | |||
421 | return nullptr; | |||
422 | }(); | |||
423 | ||||
424 | for (const auto Redecl : D->redecls()) { | |||
425 | assert(Redecl)((Redecl) ? static_cast<void> (0) : __assert_fail ("Redecl" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 425, __PRETTY_FUNCTION__)); | |||
426 | // Skip all redeclarations that have been checked previously. | |||
427 | if (LastCheckedRedecl) { | |||
428 | if (LastCheckedRedecl == Redecl) { | |||
429 | LastCheckedRedecl = nullptr; | |||
430 | } | |||
431 | continue; | |||
432 | } | |||
433 | const RawComment *RedeclComment = getRawCommentForDeclNoCache(Redecl); | |||
434 | if (RedeclComment) { | |||
435 | cacheRawCommentForDecl(*Redecl, *RedeclComment); | |||
436 | if (OriginalDecl) | |||
437 | *OriginalDecl = Redecl; | |||
438 | return RedeclComment; | |||
439 | } | |||
440 | CommentlessRedeclChains[CanonicalD] = Redecl; | |||
441 | } | |||
442 | ||||
443 | if (OriginalDecl) | |||
444 | *OriginalDecl = nullptr; | |||
445 | return nullptr; | |||
446 | } | |||
447 | ||||
448 | void ASTContext::cacheRawCommentForDecl(const Decl &OriginalD, | |||
449 | const RawComment &Comment) const { | |||
450 | assert(Comment.isDocumentation() || LangOpts.CommentOpts.ParseAllComments)((Comment.isDocumentation() || LangOpts.CommentOpts.ParseAllComments ) ? static_cast<void> (0) : __assert_fail ("Comment.isDocumentation() || LangOpts.CommentOpts.ParseAllComments" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 450, __PRETTY_FUNCTION__)); | |||
451 | DeclRawComments.try_emplace(&OriginalD, &Comment); | |||
452 | const Decl *const CanonicalDecl = OriginalD.getCanonicalDecl(); | |||
453 | RedeclChainComments.try_emplace(CanonicalDecl, &OriginalD); | |||
454 | CommentlessRedeclChains.erase(CanonicalDecl); | |||
455 | } | |||
456 | ||||
457 | static void addRedeclaredMethods(const ObjCMethodDecl *ObjCMethod, | |||
458 | SmallVectorImpl<const NamedDecl *> &Redeclared) { | |||
459 | const DeclContext *DC = ObjCMethod->getDeclContext(); | |||
460 | if (const auto *IMD = dyn_cast<ObjCImplDecl>(DC)) { | |||
461 | const ObjCInterfaceDecl *ID = IMD->getClassInterface(); | |||
462 | if (!ID) | |||
463 | return; | |||
464 | // Add redeclared method here. | |||
465 | for (const auto *Ext : ID->known_extensions()) { | |||
466 | if (ObjCMethodDecl *RedeclaredMethod = | |||
467 | Ext->getMethod(ObjCMethod->getSelector(), | |||
468 | ObjCMethod->isInstanceMethod())) | |||
469 | Redeclared.push_back(RedeclaredMethod); | |||
470 | } | |||
471 | } | |||
472 | } | |||
473 | ||||
474 | void ASTContext::attachCommentsToJustParsedDecls(ArrayRef<Decl *> Decls, | |||
475 | const Preprocessor *PP) { | |||
476 | if (Comments.empty() || Decls.empty()) | |||
477 | return; | |||
478 | ||||
479 | FileID File; | |||
480 | for (Decl *D : Decls) { | |||
481 | SourceLocation Loc = D->getLocation(); | |||
482 | if (Loc.isValid()) { | |||
483 | // See if there are any new comments that are not attached to a decl. | |||
484 | // The location doesn't have to be precise - we care only about the file. | |||
485 | File = SourceMgr.getDecomposedLoc(Loc).first; | |||
486 | break; | |||
487 | } | |||
488 | } | |||
489 | ||||
490 | if (File.isInvalid()) | |||
491 | return; | |||
492 | ||||
493 | auto CommentsInThisFile = Comments.getCommentsInFile(File); | |||
494 | if (!CommentsInThisFile || CommentsInThisFile->empty() || | |||
495 | CommentsInThisFile->rbegin()->second->isAttached()) | |||
496 | return; | |||
497 | ||||
498 | // There is at least one comment not attached to a decl. | |||
499 | // Maybe it should be attached to one of Decls? | |||
500 | // | |||
501 | // Note that this way we pick up not only comments that precede the | |||
502 | // declaration, but also comments that *follow* the declaration -- thanks to | |||
503 | // the lookahead in the lexer: we've consumed the semicolon and looked | |||
504 | // ahead through comments. | |||
505 | ||||
506 | for (const Decl *D : Decls) { | |||
507 | assert(D)((D) ? static_cast<void> (0) : __assert_fail ("D", "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 507, __PRETTY_FUNCTION__)); | |||
508 | if (D->isInvalidDecl()) | |||
509 | continue; | |||
510 | ||||
511 | D = &adjustDeclToTemplate(*D); | |||
512 | ||||
513 | const SourceLocation DeclLoc = getDeclLocForCommentSearch(D, SourceMgr); | |||
514 | ||||
515 | if (DeclLoc.isInvalid() || !DeclLoc.isFileID()) | |||
516 | continue; | |||
517 | ||||
518 | if (DeclRawComments.count(D) > 0) | |||
519 | continue; | |||
520 | ||||
521 | if (RawComment *const DocComment = | |||
522 | getRawCommentForDeclNoCacheImpl(D, DeclLoc, *CommentsInThisFile)) { | |||
523 | cacheRawCommentForDecl(*D, *DocComment); | |||
524 | comments::FullComment *FC = DocComment->parse(*this, PP, D); | |||
525 | ParsedComments[D->getCanonicalDecl()] = FC; | |||
526 | } | |||
527 | } | |||
528 | } | |||
529 | ||||
530 | comments::FullComment *ASTContext::cloneFullComment(comments::FullComment *FC, | |||
531 | const Decl *D) const { | |||
532 | auto *ThisDeclInfo = new (*this) comments::DeclInfo; | |||
533 | ThisDeclInfo->CommentDecl = D; | |||
534 | ThisDeclInfo->IsFilled = false; | |||
535 | ThisDeclInfo->fill(); | |||
536 | ThisDeclInfo->CommentDecl = FC->getDecl(); | |||
537 | if (!ThisDeclInfo->TemplateParameters) | |||
538 | ThisDeclInfo->TemplateParameters = FC->getDeclInfo()->TemplateParameters; | |||
539 | comments::FullComment *CFC = | |||
540 | new (*this) comments::FullComment(FC->getBlocks(), | |||
541 | ThisDeclInfo); | |||
542 | return CFC; | |||
543 | } | |||
544 | ||||
545 | comments::FullComment *ASTContext::getLocalCommentForDeclUncached(const Decl *D) const { | |||
546 | const RawComment *RC = getRawCommentForDeclNoCache(D); | |||
547 | return RC ? RC->parse(*this, nullptr, D) : nullptr; | |||
548 | } | |||
549 | ||||
550 | comments::FullComment *ASTContext::getCommentForDecl( | |||
551 | const Decl *D, | |||
552 | const Preprocessor *PP) const { | |||
553 | if (!D || D->isInvalidDecl()) | |||
554 | return nullptr; | |||
555 | D = &adjustDeclToTemplate(*D); | |||
556 | ||||
557 | const Decl *Canonical = D->getCanonicalDecl(); | |||
558 | llvm::DenseMap<const Decl *, comments::FullComment *>::iterator Pos = | |||
559 | ParsedComments.find(Canonical); | |||
560 | ||||
561 | if (Pos != ParsedComments.end()) { | |||
562 | if (Canonical != D) { | |||
563 | comments::FullComment *FC = Pos->second; | |||
564 | comments::FullComment *CFC = cloneFullComment(FC, D); | |||
565 | return CFC; | |||
566 | } | |||
567 | return Pos->second; | |||
568 | } | |||
569 | ||||
570 | const Decl *OriginalDecl = nullptr; | |||
571 | ||||
572 | const RawComment *RC = getRawCommentForAnyRedecl(D, &OriginalDecl); | |||
573 | if (!RC) { | |||
574 | if (isa<ObjCMethodDecl>(D) || isa<FunctionDecl>(D)) { | |||
575 | SmallVector<const NamedDecl*, 8> Overridden; | |||
576 | const auto *OMD = dyn_cast<ObjCMethodDecl>(D); | |||
577 | if (OMD && OMD->isPropertyAccessor()) | |||
578 | if (const ObjCPropertyDecl *PDecl = OMD->findPropertyDecl()) | |||
579 | if (comments::FullComment *FC = getCommentForDecl(PDecl, PP)) | |||
580 | return cloneFullComment(FC, D); | |||
581 | if (OMD) | |||
582 | addRedeclaredMethods(OMD, Overridden); | |||
583 | getOverriddenMethods(dyn_cast<NamedDecl>(D), Overridden); | |||
584 | for (unsigned i = 0, e = Overridden.size(); i < e; i++) | |||
585 | if (comments::FullComment *FC = getCommentForDecl(Overridden[i], PP)) | |||
586 | return cloneFullComment(FC, D); | |||
587 | } | |||
588 | else if (const auto *TD = dyn_cast<TypedefNameDecl>(D)) { | |||
589 | // Attach any tag type's documentation to its typedef if latter | |||
590 | // does not have one of its own. | |||
591 | QualType QT = TD->getUnderlyingType(); | |||
592 | if (const auto *TT = QT->getAs<TagType>()) | |||
593 | if (const Decl *TD = TT->getDecl()) | |||
594 | if (comments::FullComment *FC = getCommentForDecl(TD, PP)) | |||
595 | return cloneFullComment(FC, D); | |||
596 | } | |||
597 | else if (const auto *IC = dyn_cast<ObjCInterfaceDecl>(D)) { | |||
598 | while (IC->getSuperClass()) { | |||
599 | IC = IC->getSuperClass(); | |||
600 | if (comments::FullComment *FC = getCommentForDecl(IC, PP)) | |||
601 | return cloneFullComment(FC, D); | |||
602 | } | |||
603 | } | |||
604 | else if (const auto *CD = dyn_cast<ObjCCategoryDecl>(D)) { | |||
605 | if (const ObjCInterfaceDecl *IC = CD->getClassInterface()) | |||
606 | if (comments::FullComment *FC = getCommentForDecl(IC, PP)) | |||
607 | return cloneFullComment(FC, D); | |||
608 | } | |||
609 | else if (const auto *RD = dyn_cast<CXXRecordDecl>(D)) { | |||
610 | if (!(RD = RD->getDefinition())) | |||
611 | return nullptr; | |||
612 | // Check non-virtual bases. | |||
613 | for (const auto &I : RD->bases()) { | |||
614 | if (I.isVirtual() || (I.getAccessSpecifier() != AS_public)) | |||
615 | continue; | |||
616 | QualType Ty = I.getType(); | |||
617 | if (Ty.isNull()) | |||
618 | continue; | |||
619 | if (const CXXRecordDecl *NonVirtualBase = Ty->getAsCXXRecordDecl()) { | |||
620 | if (!(NonVirtualBase= NonVirtualBase->getDefinition())) | |||
621 | continue; | |||
622 | ||||
623 | if (comments::FullComment *FC = getCommentForDecl((NonVirtualBase), PP)) | |||
624 | return cloneFullComment(FC, D); | |||
625 | } | |||
626 | } | |||
627 | // Check virtual bases. | |||
628 | for (const auto &I : RD->vbases()) { | |||
629 | if (I.getAccessSpecifier() != AS_public) | |||
630 | continue; | |||
631 | QualType Ty = I.getType(); | |||
632 | if (Ty.isNull()) | |||
633 | continue; | |||
634 | if (const CXXRecordDecl *VirtualBase = Ty->getAsCXXRecordDecl()) { | |||
635 | if (!(VirtualBase= VirtualBase->getDefinition())) | |||
636 | continue; | |||
637 | if (comments::FullComment *FC = getCommentForDecl((VirtualBase), PP)) | |||
638 | return cloneFullComment(FC, D); | |||
639 | } | |||
640 | } | |||
641 | } | |||
642 | return nullptr; | |||
643 | } | |||
644 | ||||
645 | // If the RawComment was attached to other redeclaration of this Decl, we | |||
646 | // should parse the comment in context of that other Decl. This is important | |||
647 | // because comments can contain references to parameter names which can be | |||
648 | // different across redeclarations. | |||
649 | if (D != OriginalDecl && OriginalDecl) | |||
650 | return getCommentForDecl(OriginalDecl, PP); | |||
651 | ||||
652 | comments::FullComment *FC = RC->parse(*this, PP, D); | |||
653 | ParsedComments[Canonical] = FC; | |||
654 | return FC; | |||
655 | } | |||
656 | ||||
657 | void | |||
658 | ASTContext::CanonicalTemplateTemplateParm::Profile(llvm::FoldingSetNodeID &ID, | |||
659 | const ASTContext &C, | |||
660 | TemplateTemplateParmDecl *Parm) { | |||
661 | ID.AddInteger(Parm->getDepth()); | |||
662 | ID.AddInteger(Parm->getPosition()); | |||
663 | ID.AddBoolean(Parm->isParameterPack()); | |||
664 | ||||
665 | TemplateParameterList *Params = Parm->getTemplateParameters(); | |||
666 | ID.AddInteger(Params->size()); | |||
667 | for (TemplateParameterList::const_iterator P = Params->begin(), | |||
668 | PEnd = Params->end(); | |||
669 | P != PEnd; ++P) { | |||
670 | if (const auto *TTP = dyn_cast<TemplateTypeParmDecl>(*P)) { | |||
671 | ID.AddInteger(0); | |||
672 | ID.AddBoolean(TTP->isParameterPack()); | |||
673 | const TypeConstraint *TC = TTP->getTypeConstraint(); | |||
674 | ID.AddBoolean(TC != nullptr); | |||
675 | if (TC) | |||
676 | TC->getImmediatelyDeclaredConstraint()->Profile(ID, C, | |||
677 | /*Canonical=*/true); | |||
678 | if (TTP->isExpandedParameterPack()) { | |||
679 | ID.AddBoolean(true); | |||
680 | ID.AddInteger(TTP->getNumExpansionParameters()); | |||
681 | } else | |||
682 | ID.AddBoolean(false); | |||
683 | continue; | |||
684 | } | |||
685 | ||||
686 | if (const auto *NTTP = dyn_cast<NonTypeTemplateParmDecl>(*P)) { | |||
687 | ID.AddInteger(1); | |||
688 | ID.AddBoolean(NTTP->isParameterPack()); | |||
689 | ID.AddPointer(NTTP->getType().getCanonicalType().getAsOpaquePtr()); | |||
690 | if (NTTP->isExpandedParameterPack()) { | |||
691 | ID.AddBoolean(true); | |||
692 | ID.AddInteger(NTTP->getNumExpansionTypes()); | |||
693 | for (unsigned I = 0, N = NTTP->getNumExpansionTypes(); I != N; ++I) { | |||
694 | QualType T = NTTP->getExpansionType(I); | |||
695 | ID.AddPointer(T.getCanonicalType().getAsOpaquePtr()); | |||
696 | } | |||
697 | } else | |||
698 | ID.AddBoolean(false); | |||
699 | continue; | |||
700 | } | |||
701 | ||||
702 | auto *TTP = cast<TemplateTemplateParmDecl>(*P); | |||
703 | ID.AddInteger(2); | |||
704 | Profile(ID, C, TTP); | |||
705 | } | |||
706 | Expr *RequiresClause = Parm->getTemplateParameters()->getRequiresClause(); | |||
707 | ID.AddBoolean(RequiresClause != nullptr); | |||
708 | if (RequiresClause) | |||
709 | RequiresClause->Profile(ID, C, /*Canonical=*/true); | |||
710 | } | |||
711 | ||||
712 | static Expr * | |||
713 | canonicalizeImmediatelyDeclaredConstraint(const ASTContext &C, Expr *IDC, | |||
714 | QualType ConstrainedType) { | |||
715 | // This is a bit ugly - we need to form a new immediately-declared | |||
716 | // constraint that references the new parameter; this would ideally | |||
717 | // require semantic analysis (e.g. template<C T> struct S {}; - the | |||
718 | // converted arguments of C<T> could be an argument pack if C is | |||
719 | // declared as template<typename... T> concept C = ...). | |||
720 | // We don't have semantic analysis here so we dig deep into the | |||
721 | // ready-made constraint expr and change the thing manually. | |||
722 | ConceptSpecializationExpr *CSE; | |||
723 | if (const auto *Fold = dyn_cast<CXXFoldExpr>(IDC)) | |||
724 | CSE = cast<ConceptSpecializationExpr>(Fold->getLHS()); | |||
725 | else | |||
726 | CSE = cast<ConceptSpecializationExpr>(IDC); | |||
727 | ArrayRef<TemplateArgument> OldConverted = CSE->getTemplateArguments(); | |||
728 | SmallVector<TemplateArgument, 3> NewConverted; | |||
729 | NewConverted.reserve(OldConverted.size()); | |||
730 | if (OldConverted.front().getKind() == TemplateArgument::Pack) { | |||
731 | // The case: | |||
732 | // template<typename... T> concept C = true; | |||
733 | // template<C<int> T> struct S; -> constraint is C<{T, int}> | |||
734 | NewConverted.push_back(ConstrainedType); | |||
735 | for (auto &Arg : OldConverted.front().pack_elements().drop_front(1)) | |||
736 | NewConverted.push_back(Arg); | |||
737 | TemplateArgument NewPack(NewConverted); | |||
738 | ||||
739 | NewConverted.clear(); | |||
740 | NewConverted.push_back(NewPack); | |||
741 | assert(OldConverted.size() == 1 &&((OldConverted.size() == 1 && "Template parameter pack should be the last parameter" ) ? static_cast<void> (0) : __assert_fail ("OldConverted.size() == 1 && \"Template parameter pack should be the last parameter\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 742, __PRETTY_FUNCTION__)) | |||
742 | "Template parameter pack should be the last parameter")((OldConverted.size() == 1 && "Template parameter pack should be the last parameter" ) ? static_cast<void> (0) : __assert_fail ("OldConverted.size() == 1 && \"Template parameter pack should be the last parameter\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 742, __PRETTY_FUNCTION__)); | |||
743 | } else { | |||
744 | assert(OldConverted.front().getKind() == TemplateArgument::Type &&((OldConverted.front().getKind() == TemplateArgument::Type && "Unexpected first argument kind for immediately-declared " "constraint" ) ? static_cast<void> (0) : __assert_fail ("OldConverted.front().getKind() == TemplateArgument::Type && \"Unexpected first argument kind for immediately-declared \" \"constraint\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 746, __PRETTY_FUNCTION__)) | |||
745 | "Unexpected first argument kind for immediately-declared "((OldConverted.front().getKind() == TemplateArgument::Type && "Unexpected first argument kind for immediately-declared " "constraint" ) ? static_cast<void> (0) : __assert_fail ("OldConverted.front().getKind() == TemplateArgument::Type && \"Unexpected first argument kind for immediately-declared \" \"constraint\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 746, __PRETTY_FUNCTION__)) | |||
746 | "constraint")((OldConverted.front().getKind() == TemplateArgument::Type && "Unexpected first argument kind for immediately-declared " "constraint" ) ? static_cast<void> (0) : __assert_fail ("OldConverted.front().getKind() == TemplateArgument::Type && \"Unexpected first argument kind for immediately-declared \" \"constraint\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 746, __PRETTY_FUNCTION__)); | |||
747 | NewConverted.push_back(ConstrainedType); | |||
748 | for (auto &Arg : OldConverted.drop_front(1)) | |||
749 | NewConverted.push_back(Arg); | |||
750 | } | |||
751 | Expr *NewIDC = ConceptSpecializationExpr::Create( | |||
752 | C, CSE->getNamedConcept(), NewConverted, nullptr, | |||
753 | CSE->isInstantiationDependent(), CSE->containsUnexpandedParameterPack()); | |||
754 | ||||
755 | if (auto *OrigFold = dyn_cast<CXXFoldExpr>(IDC)) | |||
756 | NewIDC = new (C) CXXFoldExpr( | |||
757 | OrigFold->getType(), /*Callee*/nullptr, SourceLocation(), NewIDC, | |||
758 | BinaryOperatorKind::BO_LAnd, SourceLocation(), /*RHS=*/nullptr, | |||
759 | SourceLocation(), /*NumExpansions=*/None); | |||
760 | return NewIDC; | |||
761 | } | |||
762 | ||||
763 | TemplateTemplateParmDecl * | |||
764 | ASTContext::getCanonicalTemplateTemplateParmDecl( | |||
765 | TemplateTemplateParmDecl *TTP) const { | |||
766 | // Check if we already have a canonical template template parameter. | |||
767 | llvm::FoldingSetNodeID ID; | |||
768 | CanonicalTemplateTemplateParm::Profile(ID, *this, TTP); | |||
769 | void *InsertPos = nullptr; | |||
770 | CanonicalTemplateTemplateParm *Canonical | |||
771 | = CanonTemplateTemplateParms.FindNodeOrInsertPos(ID, InsertPos); | |||
772 | if (Canonical) | |||
773 | return Canonical->getParam(); | |||
774 | ||||
775 | // Build a canonical template parameter list. | |||
776 | TemplateParameterList *Params = TTP->getTemplateParameters(); | |||
777 | SmallVector<NamedDecl *, 4> CanonParams; | |||
778 | CanonParams.reserve(Params->size()); | |||
779 | for (TemplateParameterList::const_iterator P = Params->begin(), | |||
780 | PEnd = Params->end(); | |||
781 | P != PEnd; ++P) { | |||
782 | if (const auto *TTP = dyn_cast<TemplateTypeParmDecl>(*P)) { | |||
783 | TemplateTypeParmDecl *NewTTP = TemplateTypeParmDecl::Create(*this, | |||
784 | getTranslationUnitDecl(), SourceLocation(), SourceLocation(), | |||
785 | TTP->getDepth(), TTP->getIndex(), nullptr, false, | |||
786 | TTP->isParameterPack(), TTP->hasTypeConstraint(), | |||
787 | TTP->isExpandedParameterPack() ? | |||
788 | llvm::Optional<unsigned>(TTP->getNumExpansionParameters()) : None); | |||
789 | if (const auto *TC = TTP->getTypeConstraint()) { | |||
790 | QualType ParamAsArgument(NewTTP->getTypeForDecl(), 0); | |||
791 | Expr *NewIDC = canonicalizeImmediatelyDeclaredConstraint( | |||
792 | *this, TC->getImmediatelyDeclaredConstraint(), | |||
793 | ParamAsArgument); | |||
794 | TemplateArgumentListInfo CanonArgsAsWritten; | |||
795 | if (auto *Args = TC->getTemplateArgsAsWritten()) | |||
796 | for (const auto &ArgLoc : Args->arguments()) | |||
797 | CanonArgsAsWritten.addArgument( | |||
798 | TemplateArgumentLoc(ArgLoc.getArgument(), | |||
799 | TemplateArgumentLocInfo())); | |||
800 | NewTTP->setTypeConstraint( | |||
801 | NestedNameSpecifierLoc(), | |||
802 | DeclarationNameInfo(TC->getNamedConcept()->getDeclName(), | |||
803 | SourceLocation()), /*FoundDecl=*/nullptr, | |||
804 | // Actually canonicalizing a TemplateArgumentLoc is difficult so we | |||
805 | // simply omit the ArgsAsWritten | |||
806 | TC->getNamedConcept(), /*ArgsAsWritten=*/nullptr, NewIDC); | |||
807 | } | |||
808 | CanonParams.push_back(NewTTP); | |||
809 | } else if (const auto *NTTP = dyn_cast<NonTypeTemplateParmDecl>(*P)) { | |||
810 | QualType T = getCanonicalType(NTTP->getType()); | |||
811 | TypeSourceInfo *TInfo = getTrivialTypeSourceInfo(T); | |||
812 | NonTypeTemplateParmDecl *Param; | |||
813 | if (NTTP->isExpandedParameterPack()) { | |||
814 | SmallVector<QualType, 2> ExpandedTypes; | |||
815 | SmallVector<TypeSourceInfo *, 2> ExpandedTInfos; | |||
816 | for (unsigned I = 0, N = NTTP->getNumExpansionTypes(); I != N; ++I) { | |||
817 | ExpandedTypes.push_back(getCanonicalType(NTTP->getExpansionType(I))); | |||
818 | ExpandedTInfos.push_back( | |||
819 | getTrivialTypeSourceInfo(ExpandedTypes.back())); | |||
820 | } | |||
821 | ||||
822 | Param = NonTypeTemplateParmDecl::Create(*this, getTranslationUnitDecl(), | |||
823 | SourceLocation(), | |||
824 | SourceLocation(), | |||
825 | NTTP->getDepth(), | |||
826 | NTTP->getPosition(), nullptr, | |||
827 | T, | |||
828 | TInfo, | |||
829 | ExpandedTypes, | |||
830 | ExpandedTInfos); | |||
831 | } else { | |||
832 | Param = NonTypeTemplateParmDecl::Create(*this, getTranslationUnitDecl(), | |||
833 | SourceLocation(), | |||
834 | SourceLocation(), | |||
835 | NTTP->getDepth(), | |||
836 | NTTP->getPosition(), nullptr, | |||
837 | T, | |||
838 | NTTP->isParameterPack(), | |||
839 | TInfo); | |||
840 | } | |||
841 | if (AutoType *AT = T->getContainedAutoType()) { | |||
842 | if (AT->isConstrained()) { | |||
843 | Param->setPlaceholderTypeConstraint( | |||
844 | canonicalizeImmediatelyDeclaredConstraint( | |||
845 | *this, NTTP->getPlaceholderTypeConstraint(), T)); | |||
846 | } | |||
847 | } | |||
848 | CanonParams.push_back(Param); | |||
849 | ||||
850 | } else | |||
851 | CanonParams.push_back(getCanonicalTemplateTemplateParmDecl( | |||
852 | cast<TemplateTemplateParmDecl>(*P))); | |||
853 | } | |||
854 | ||||
855 | Expr *CanonRequiresClause = nullptr; | |||
856 | if (Expr *RequiresClause = TTP->getTemplateParameters()->getRequiresClause()) | |||
857 | CanonRequiresClause = RequiresClause; | |||
858 | ||||
859 | TemplateTemplateParmDecl *CanonTTP | |||
860 | = TemplateTemplateParmDecl::Create(*this, getTranslationUnitDecl(), | |||
861 | SourceLocation(), TTP->getDepth(), | |||
862 | TTP->getPosition(), | |||
863 | TTP->isParameterPack(), | |||
864 | nullptr, | |||
865 | TemplateParameterList::Create(*this, SourceLocation(), | |||
866 | SourceLocation(), | |||
867 | CanonParams, | |||
868 | SourceLocation(), | |||
869 | CanonRequiresClause)); | |||
870 | ||||
871 | // Get the new insert position for the node we care about. | |||
872 | Canonical = CanonTemplateTemplateParms.FindNodeOrInsertPos(ID, InsertPos); | |||
873 | assert(!Canonical && "Shouldn't be in the map!")((!Canonical && "Shouldn't be in the map!") ? static_cast <void> (0) : __assert_fail ("!Canonical && \"Shouldn't be in the map!\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 873, __PRETTY_FUNCTION__)); | |||
874 | (void)Canonical; | |||
875 | ||||
876 | // Create the canonical template template parameter entry. | |||
877 | Canonical = new (*this) CanonicalTemplateTemplateParm(CanonTTP); | |||
878 | CanonTemplateTemplateParms.InsertNode(Canonical, InsertPos); | |||
879 | return CanonTTP; | |||
880 | } | |||
881 | ||||
882 | CXXABI *ASTContext::createCXXABI(const TargetInfo &T) { | |||
883 | if (!LangOpts.CPlusPlus) return nullptr; | |||
884 | ||||
885 | switch (T.getCXXABI().getKind()) { | |||
886 | case TargetCXXABI::AppleARM64: | |||
887 | case TargetCXXABI::Fuchsia: | |||
888 | case TargetCXXABI::GenericARM: // Same as Itanium at this level | |||
889 | case TargetCXXABI::iOS: | |||
890 | case TargetCXXABI::WatchOS: | |||
891 | case TargetCXXABI::GenericAArch64: | |||
892 | case TargetCXXABI::GenericMIPS: | |||
893 | case TargetCXXABI::GenericItanium: | |||
894 | case TargetCXXABI::WebAssembly: | |||
895 | case TargetCXXABI::XL: | |||
896 | return CreateItaniumCXXABI(*this); | |||
897 | case TargetCXXABI::Microsoft: | |||
898 | return CreateMicrosoftCXXABI(*this); | |||
899 | } | |||
900 | llvm_unreachable("Invalid CXXABI type!")::llvm::llvm_unreachable_internal("Invalid CXXABI type!", "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 900); | |||
901 | } | |||
902 | ||||
903 | interp::Context &ASTContext::getInterpContext() { | |||
904 | if (!InterpContext) { | |||
905 | InterpContext.reset(new interp::Context(*this)); | |||
906 | } | |||
907 | return *InterpContext.get(); | |||
908 | } | |||
909 | ||||
910 | ParentMapContext &ASTContext::getParentMapContext() { | |||
911 | if (!ParentMapCtx) | |||
912 | ParentMapCtx.reset(new ParentMapContext(*this)); | |||
913 | return *ParentMapCtx.get(); | |||
914 | } | |||
915 | ||||
916 | static const LangASMap *getAddressSpaceMap(const TargetInfo &T, | |||
917 | const LangOptions &LOpts) { | |||
918 | if (LOpts.FakeAddressSpaceMap) { | |||
919 | // The fake address space map must have a distinct entry for each | |||
920 | // language-specific address space. | |||
921 | static const unsigned FakeAddrSpaceMap[] = { | |||
922 | 0, // Default | |||
923 | 1, // opencl_global | |||
924 | 3, // opencl_local | |||
925 | 2, // opencl_constant | |||
926 | 0, // opencl_private | |||
927 | 4, // opencl_generic | |||
928 | 5, // opencl_global_device | |||
929 | 6, // opencl_global_host | |||
930 | 7, // cuda_device | |||
931 | 8, // cuda_constant | |||
932 | 9, // cuda_shared | |||
933 | 10, // ptr32_sptr | |||
934 | 11, // ptr32_uptr | |||
935 | 12 // ptr64 | |||
936 | }; | |||
937 | return &FakeAddrSpaceMap; | |||
938 | } else { | |||
939 | return &T.getAddressSpaceMap(); | |||
940 | } | |||
941 | } | |||
942 | ||||
943 | static bool isAddrSpaceMapManglingEnabled(const TargetInfo &TI, | |||
944 | const LangOptions &LangOpts) { | |||
945 | switch (LangOpts.getAddressSpaceMapMangling()) { | |||
946 | case LangOptions::ASMM_Target: | |||
947 | return TI.useAddressSpaceMapMangling(); | |||
948 | case LangOptions::ASMM_On: | |||
949 | return true; | |||
950 | case LangOptions::ASMM_Off: | |||
951 | return false; | |||
952 | } | |||
953 | llvm_unreachable("getAddressSpaceMapMangling() doesn't cover anything.")::llvm::llvm_unreachable_internal("getAddressSpaceMapMangling() doesn't cover anything." , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 953); | |||
954 | } | |||
955 | ||||
956 | ASTContext::ASTContext(LangOptions &LOpts, SourceManager &SM, | |||
957 | IdentifierTable &idents, SelectorTable &sels, | |||
958 | Builtin::Context &builtins) | |||
959 | : ConstantArrayTypes(this_()), FunctionProtoTypes(this_()), | |||
960 | TemplateSpecializationTypes(this_()), | |||
961 | DependentTemplateSpecializationTypes(this_()), AutoTypes(this_()), | |||
962 | SubstTemplateTemplateParmPacks(this_()), | |||
963 | CanonTemplateTemplateParms(this_()), SourceMgr(SM), LangOpts(LOpts), | |||
964 | SanitizerBL(new SanitizerBlacklist(LangOpts.SanitizerBlacklistFiles, SM)), | |||
965 | XRayFilter(new XRayFunctionFilter(LangOpts.XRayAlwaysInstrumentFiles, | |||
966 | LangOpts.XRayNeverInstrumentFiles, | |||
967 | LangOpts.XRayAttrListFiles, SM)), | |||
968 | PrintingPolicy(LOpts), Idents(idents), Selectors(sels), | |||
969 | BuiltinInfo(builtins), DeclarationNames(*this), Comments(SM), | |||
970 | CommentCommandTraits(BumpAlloc, LOpts.CommentOpts), | |||
971 | CompCategories(this_()), LastSDM(nullptr, 0) { | |||
972 | TUDecl = TranslationUnitDecl::Create(*this); | |||
973 | TraversalScope = {TUDecl}; | |||
974 | } | |||
975 | ||||
976 | ASTContext::~ASTContext() { | |||
977 | // Release the DenseMaps associated with DeclContext objects. | |||
978 | // FIXME: Is this the ideal solution? | |||
979 | ReleaseDeclContextMaps(); | |||
980 | ||||
981 | // Call all of the deallocation functions on all of their targets. | |||
982 | for (auto &Pair : Deallocations) | |||
983 | (Pair.first)(Pair.second); | |||
984 | ||||
985 | // ASTRecordLayout objects in ASTRecordLayouts must always be destroyed | |||
986 | // because they can contain DenseMaps. | |||
987 | for (llvm::DenseMap<const ObjCContainerDecl*, | |||
988 | const ASTRecordLayout*>::iterator | |||
989 | I = ObjCLayouts.begin(), E = ObjCLayouts.end(); I != E; ) | |||
990 | // Increment in loop to prevent using deallocated memory. | |||
991 | if (auto *R = const_cast<ASTRecordLayout *>((I++)->second)) | |||
992 | R->Destroy(*this); | |||
993 | ||||
994 | for (llvm::DenseMap<const RecordDecl*, const ASTRecordLayout*>::iterator | |||
995 | I = ASTRecordLayouts.begin(), E = ASTRecordLayouts.end(); I != E; ) { | |||
996 | // Increment in loop to prevent using deallocated memory. | |||
997 | if (auto *R = const_cast<ASTRecordLayout *>((I++)->second)) | |||
998 | R->Destroy(*this); | |||
999 | } | |||
1000 | ||||
1001 | for (llvm::DenseMap<const Decl*, AttrVec*>::iterator A = DeclAttrs.begin(), | |||
1002 | AEnd = DeclAttrs.end(); | |||
1003 | A != AEnd; ++A) | |||
1004 | A->second->~AttrVec(); | |||
1005 | ||||
1006 | for (const auto &Value : ModuleInitializers) | |||
1007 | Value.second->~PerModuleInitializers(); | |||
1008 | } | |||
1009 | ||||
1010 | void ASTContext::setTraversalScope(const std::vector<Decl *> &TopLevelDecls) { | |||
1011 | TraversalScope = TopLevelDecls; | |||
1012 | getParentMapContext().clear(); | |||
1013 | } | |||
1014 | ||||
1015 | void ASTContext::AddDeallocation(void (*Callback)(void *), void *Data) const { | |||
1016 | Deallocations.push_back({Callback, Data}); | |||
1017 | } | |||
1018 | ||||
1019 | void | |||
1020 | ASTContext::setExternalSource(IntrusiveRefCntPtr<ExternalASTSource> Source) { | |||
1021 | ExternalSource = std::move(Source); | |||
1022 | } | |||
1023 | ||||
1024 | void ASTContext::PrintStats() const { | |||
1025 | llvm::errs() << "\n*** AST Context Stats:\n"; | |||
1026 | llvm::errs() << " " << Types.size() << " types total.\n"; | |||
1027 | ||||
1028 | unsigned counts[] = { | |||
1029 | #define TYPE(Name, Parent) 0, | |||
1030 | #define ABSTRACT_TYPE(Name, Parent) | |||
1031 | #include "clang/AST/TypeNodes.inc" | |||
1032 | 0 // Extra | |||
1033 | }; | |||
1034 | ||||
1035 | for (unsigned i = 0, e = Types.size(); i != e; ++i) { | |||
1036 | Type *T = Types[i]; | |||
1037 | counts[(unsigned)T->getTypeClass()]++; | |||
1038 | } | |||
1039 | ||||
1040 | unsigned Idx = 0; | |||
1041 | unsigned TotalBytes = 0; | |||
1042 | #define TYPE(Name, Parent) \ | |||
1043 | if (counts[Idx]) \ | |||
1044 | llvm::errs() << " " << counts[Idx] << " " << #Name \ | |||
1045 | << " types, " << sizeof(Name##Type) << " each " \ | |||
1046 | << "(" << counts[Idx] * sizeof(Name##Type) \ | |||
1047 | << " bytes)\n"; \ | |||
1048 | TotalBytes += counts[Idx] * sizeof(Name##Type); \ | |||
1049 | ++Idx; | |||
1050 | #define ABSTRACT_TYPE(Name, Parent) | |||
1051 | #include "clang/AST/TypeNodes.inc" | |||
1052 | ||||
1053 | llvm::errs() << "Total bytes = " << TotalBytes << "\n"; | |||
1054 | ||||
1055 | // Implicit special member functions. | |||
1056 | llvm::errs() << NumImplicitDefaultConstructorsDeclared << "/" | |||
1057 | << NumImplicitDefaultConstructors | |||
1058 | << " implicit default constructors created\n"; | |||
1059 | llvm::errs() << NumImplicitCopyConstructorsDeclared << "/" | |||
1060 | << NumImplicitCopyConstructors | |||
1061 | << " implicit copy constructors created\n"; | |||
1062 | if (getLangOpts().CPlusPlus) | |||
1063 | llvm::errs() << NumImplicitMoveConstructorsDeclared << "/" | |||
1064 | << NumImplicitMoveConstructors | |||
1065 | << " implicit move constructors created\n"; | |||
1066 | llvm::errs() << NumImplicitCopyAssignmentOperatorsDeclared << "/" | |||
1067 | << NumImplicitCopyAssignmentOperators | |||
1068 | << " implicit copy assignment operators created\n"; | |||
1069 | if (getLangOpts().CPlusPlus) | |||
1070 | llvm::errs() << NumImplicitMoveAssignmentOperatorsDeclared << "/" | |||
1071 | << NumImplicitMoveAssignmentOperators | |||
1072 | << " implicit move assignment operators created\n"; | |||
1073 | llvm::errs() << NumImplicitDestructorsDeclared << "/" | |||
1074 | << NumImplicitDestructors | |||
1075 | << " implicit destructors created\n"; | |||
1076 | ||||
1077 | if (ExternalSource) { | |||
1078 | llvm::errs() << "\n"; | |||
1079 | ExternalSource->PrintStats(); | |||
1080 | } | |||
1081 | ||||
1082 | BumpAlloc.PrintStats(); | |||
1083 | } | |||
1084 | ||||
1085 | void ASTContext::mergeDefinitionIntoModule(NamedDecl *ND, Module *M, | |||
1086 | bool NotifyListeners) { | |||
1087 | if (NotifyListeners) | |||
1088 | if (auto *Listener = getASTMutationListener()) | |||
1089 | Listener->RedefinedHiddenDefinition(ND, M); | |||
1090 | ||||
1091 | MergedDefModules[cast<NamedDecl>(ND->getCanonicalDecl())].push_back(M); | |||
1092 | } | |||
1093 | ||||
1094 | void ASTContext::deduplicateMergedDefinitonsFor(NamedDecl *ND) { | |||
1095 | auto It = MergedDefModules.find(cast<NamedDecl>(ND->getCanonicalDecl())); | |||
1096 | if (It == MergedDefModules.end()) | |||
1097 | return; | |||
1098 | ||||
1099 | auto &Merged = It->second; | |||
1100 | llvm::DenseSet<Module*> Found; | |||
1101 | for (Module *&M : Merged) | |||
1102 | if (!Found.insert(M).second) | |||
1103 | M = nullptr; | |||
1104 | Merged.erase(std::remove(Merged.begin(), Merged.end(), nullptr), Merged.end()); | |||
1105 | } | |||
1106 | ||||
1107 | ArrayRef<Module *> | |||
1108 | ASTContext::getModulesWithMergedDefinition(const NamedDecl *Def) { | |||
1109 | auto MergedIt = | |||
1110 | MergedDefModules.find(cast<NamedDecl>(Def->getCanonicalDecl())); | |||
1111 | if (MergedIt == MergedDefModules.end()) | |||
1112 | return None; | |||
1113 | return MergedIt->second; | |||
1114 | } | |||
1115 | ||||
1116 | void ASTContext::PerModuleInitializers::resolve(ASTContext &Ctx) { | |||
1117 | if (LazyInitializers.empty()) | |||
1118 | return; | |||
1119 | ||||
1120 | auto *Source = Ctx.getExternalSource(); | |||
1121 | assert(Source && "lazy initializers but no external source")((Source && "lazy initializers but no external source" ) ? static_cast<void> (0) : __assert_fail ("Source && \"lazy initializers but no external source\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 1121, __PRETTY_FUNCTION__)); | |||
1122 | ||||
1123 | auto LazyInits = std::move(LazyInitializers); | |||
1124 | LazyInitializers.clear(); | |||
1125 | ||||
1126 | for (auto ID : LazyInits) | |||
1127 | Initializers.push_back(Source->GetExternalDecl(ID)); | |||
1128 | ||||
1129 | assert(LazyInitializers.empty() &&((LazyInitializers.empty() && "GetExternalDecl for lazy module initializer added more inits" ) ? static_cast<void> (0) : __assert_fail ("LazyInitializers.empty() && \"GetExternalDecl for lazy module initializer added more inits\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 1130, __PRETTY_FUNCTION__)) | |||
1130 | "GetExternalDecl for lazy module initializer added more inits")((LazyInitializers.empty() && "GetExternalDecl for lazy module initializer added more inits" ) ? static_cast<void> (0) : __assert_fail ("LazyInitializers.empty() && \"GetExternalDecl for lazy module initializer added more inits\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 1130, __PRETTY_FUNCTION__)); | |||
1131 | } | |||
1132 | ||||
1133 | void ASTContext::addModuleInitializer(Module *M, Decl *D) { | |||
1134 | // One special case: if we add a module initializer that imports another | |||
1135 | // module, and that module's only initializer is an ImportDecl, simplify. | |||
1136 | if (const auto *ID = dyn_cast<ImportDecl>(D)) { | |||
1137 | auto It = ModuleInitializers.find(ID->getImportedModule()); | |||
1138 | ||||
1139 | // Maybe the ImportDecl does nothing at all. (Common case.) | |||
1140 | if (It == ModuleInitializers.end()) | |||
1141 | return; | |||
1142 | ||||
1143 | // Maybe the ImportDecl only imports another ImportDecl. | |||
1144 | auto &Imported = *It->second; | |||
1145 | if (Imported.Initializers.size() + Imported.LazyInitializers.size() == 1) { | |||
1146 | Imported.resolve(*this); | |||
1147 | auto *OnlyDecl = Imported.Initializers.front(); | |||
1148 | if (isa<ImportDecl>(OnlyDecl)) | |||
1149 | D = OnlyDecl; | |||
1150 | } | |||
1151 | } | |||
1152 | ||||
1153 | auto *&Inits = ModuleInitializers[M]; | |||
1154 | if (!Inits) | |||
1155 | Inits = new (*this) PerModuleInitializers; | |||
1156 | Inits->Initializers.push_back(D); | |||
1157 | } | |||
1158 | ||||
1159 | void ASTContext::addLazyModuleInitializers(Module *M, ArrayRef<uint32_t> IDs) { | |||
1160 | auto *&Inits = ModuleInitializers[M]; | |||
1161 | if (!Inits) | |||
1162 | Inits = new (*this) PerModuleInitializers; | |||
1163 | Inits->LazyInitializers.insert(Inits->LazyInitializers.end(), | |||
1164 | IDs.begin(), IDs.end()); | |||
1165 | } | |||
1166 | ||||
1167 | ArrayRef<Decl *> ASTContext::getModuleInitializers(Module *M) { | |||
1168 | auto It = ModuleInitializers.find(M); | |||
1169 | if (It == ModuleInitializers.end()) | |||
1170 | return None; | |||
1171 | ||||
1172 | auto *Inits = It->second; | |||
1173 | Inits->resolve(*this); | |||
1174 | return Inits->Initializers; | |||
1175 | } | |||
1176 | ||||
1177 | ExternCContextDecl *ASTContext::getExternCContextDecl() const { | |||
1178 | if (!ExternCContext) | |||
1179 | ExternCContext = ExternCContextDecl::Create(*this, getTranslationUnitDecl()); | |||
1180 | ||||
1181 | return ExternCContext; | |||
1182 | } | |||
1183 | ||||
1184 | BuiltinTemplateDecl * | |||
1185 | ASTContext::buildBuiltinTemplateDecl(BuiltinTemplateKind BTK, | |||
1186 | const IdentifierInfo *II) const { | |||
1187 | auto *BuiltinTemplate = BuiltinTemplateDecl::Create(*this, TUDecl, II, BTK); | |||
1188 | BuiltinTemplate->setImplicit(); | |||
1189 | TUDecl->addDecl(BuiltinTemplate); | |||
1190 | ||||
1191 | return BuiltinTemplate; | |||
1192 | } | |||
1193 | ||||
1194 | BuiltinTemplateDecl * | |||
1195 | ASTContext::getMakeIntegerSeqDecl() const { | |||
1196 | if (!MakeIntegerSeqDecl) | |||
1197 | MakeIntegerSeqDecl = buildBuiltinTemplateDecl(BTK__make_integer_seq, | |||
1198 | getMakeIntegerSeqName()); | |||
1199 | return MakeIntegerSeqDecl; | |||
1200 | } | |||
1201 | ||||
1202 | BuiltinTemplateDecl * | |||
1203 | ASTContext::getTypePackElementDecl() const { | |||
1204 | if (!TypePackElementDecl) | |||
1205 | TypePackElementDecl = buildBuiltinTemplateDecl(BTK__type_pack_element, | |||
1206 | getTypePackElementName()); | |||
1207 | return TypePackElementDecl; | |||
1208 | } | |||
1209 | ||||
1210 | RecordDecl *ASTContext::buildImplicitRecord(StringRef Name, | |||
1211 | RecordDecl::TagKind TK) const { | |||
1212 | SourceLocation Loc; | |||
1213 | RecordDecl *NewDecl; | |||
1214 | if (getLangOpts().CPlusPlus) | |||
1215 | NewDecl = CXXRecordDecl::Create(*this, TK, getTranslationUnitDecl(), Loc, | |||
1216 | Loc, &Idents.get(Name)); | |||
1217 | else | |||
1218 | NewDecl = RecordDecl::Create(*this, TK, getTranslationUnitDecl(), Loc, Loc, | |||
1219 | &Idents.get(Name)); | |||
1220 | NewDecl->setImplicit(); | |||
1221 | NewDecl->addAttr(TypeVisibilityAttr::CreateImplicit( | |||
1222 | const_cast<ASTContext &>(*this), TypeVisibilityAttr::Default)); | |||
1223 | return NewDecl; | |||
1224 | } | |||
1225 | ||||
1226 | TypedefDecl *ASTContext::buildImplicitTypedef(QualType T, | |||
1227 | StringRef Name) const { | |||
1228 | TypeSourceInfo *TInfo = getTrivialTypeSourceInfo(T); | |||
1229 | TypedefDecl *NewDecl = TypedefDecl::Create( | |||
1230 | const_cast<ASTContext &>(*this), getTranslationUnitDecl(), | |||
1231 | SourceLocation(), SourceLocation(), &Idents.get(Name), TInfo); | |||
1232 | NewDecl->setImplicit(); | |||
1233 | return NewDecl; | |||
1234 | } | |||
1235 | ||||
1236 | TypedefDecl *ASTContext::getInt128Decl() const { | |||
1237 | if (!Int128Decl) | |||
1238 | Int128Decl = buildImplicitTypedef(Int128Ty, "__int128_t"); | |||
1239 | return Int128Decl; | |||
1240 | } | |||
1241 | ||||
1242 | TypedefDecl *ASTContext::getUInt128Decl() const { | |||
1243 | if (!UInt128Decl) | |||
1244 | UInt128Decl = buildImplicitTypedef(UnsignedInt128Ty, "__uint128_t"); | |||
1245 | return UInt128Decl; | |||
1246 | } | |||
1247 | ||||
1248 | void ASTContext::InitBuiltinType(CanQualType &R, BuiltinType::Kind K) { | |||
1249 | auto *Ty = new (*this, TypeAlignment) BuiltinType(K); | |||
1250 | R = CanQualType::CreateUnsafe(QualType(Ty, 0)); | |||
1251 | Types.push_back(Ty); | |||
1252 | } | |||
1253 | ||||
1254 | void ASTContext::InitBuiltinTypes(const TargetInfo &Target, | |||
1255 | const TargetInfo *AuxTarget) { | |||
1256 | assert((!this->Target || this->Target == &Target) &&(((!this->Target || this->Target == &Target) && "Incorrect target reinitialization") ? static_cast<void> (0) : __assert_fail ("(!this->Target || this->Target == &Target) && \"Incorrect target reinitialization\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 1257, __PRETTY_FUNCTION__)) | |||
1257 | "Incorrect target reinitialization")(((!this->Target || this->Target == &Target) && "Incorrect target reinitialization") ? static_cast<void> (0) : __assert_fail ("(!this->Target || this->Target == &Target) && \"Incorrect target reinitialization\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 1257, __PRETTY_FUNCTION__)); | |||
1258 | assert(VoidTy.isNull() && "Context reinitialized?")((VoidTy.isNull() && "Context reinitialized?") ? static_cast <void> (0) : __assert_fail ("VoidTy.isNull() && \"Context reinitialized?\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 1258, __PRETTY_FUNCTION__)); | |||
1259 | ||||
1260 | this->Target = &Target; | |||
1261 | this->AuxTarget = AuxTarget; | |||
1262 | ||||
1263 | ABI.reset(createCXXABI(Target)); | |||
1264 | AddrSpaceMap = getAddressSpaceMap(Target, LangOpts); | |||
1265 | AddrSpaceMapMangling = isAddrSpaceMapManglingEnabled(Target, LangOpts); | |||
1266 | ||||
1267 | // C99 6.2.5p19. | |||
1268 | InitBuiltinType(VoidTy, BuiltinType::Void); | |||
1269 | ||||
1270 | // C99 6.2.5p2. | |||
1271 | InitBuiltinType(BoolTy, BuiltinType::Bool); | |||
1272 | // C99 6.2.5p3. | |||
1273 | if (LangOpts.CharIsSigned) | |||
1274 | InitBuiltinType(CharTy, BuiltinType::Char_S); | |||
1275 | else | |||
1276 | InitBuiltinType(CharTy, BuiltinType::Char_U); | |||
1277 | // C99 6.2.5p4. | |||
1278 | InitBuiltinType(SignedCharTy, BuiltinType::SChar); | |||
1279 | InitBuiltinType(ShortTy, BuiltinType::Short); | |||
1280 | InitBuiltinType(IntTy, BuiltinType::Int); | |||
1281 | InitBuiltinType(LongTy, BuiltinType::Long); | |||
1282 | InitBuiltinType(LongLongTy, BuiltinType::LongLong); | |||
1283 | ||||
1284 | // C99 6.2.5p6. | |||
1285 | InitBuiltinType(UnsignedCharTy, BuiltinType::UChar); | |||
1286 | InitBuiltinType(UnsignedShortTy, BuiltinType::UShort); | |||
1287 | InitBuiltinType(UnsignedIntTy, BuiltinType::UInt); | |||
1288 | InitBuiltinType(UnsignedLongTy, BuiltinType::ULong); | |||
1289 | InitBuiltinType(UnsignedLongLongTy, BuiltinType::ULongLong); | |||
1290 | ||||
1291 | // C99 6.2.5p10. | |||
1292 | InitBuiltinType(FloatTy, BuiltinType::Float); | |||
1293 | InitBuiltinType(DoubleTy, BuiltinType::Double); | |||
1294 | InitBuiltinType(LongDoubleTy, BuiltinType::LongDouble); | |||
1295 | ||||
1296 | // GNU extension, __float128 for IEEE quadruple precision | |||
1297 | InitBuiltinType(Float128Ty, BuiltinType::Float128); | |||
1298 | ||||
1299 | // C11 extension ISO/IEC TS 18661-3 | |||
1300 | InitBuiltinType(Float16Ty, BuiltinType::Float16); | |||
1301 | ||||
1302 | // ISO/IEC JTC1 SC22 WG14 N1169 Extension | |||
1303 | InitBuiltinType(ShortAccumTy, BuiltinType::ShortAccum); | |||
1304 | InitBuiltinType(AccumTy, BuiltinType::Accum); | |||
1305 | InitBuiltinType(LongAccumTy, BuiltinType::LongAccum); | |||
1306 | InitBuiltinType(UnsignedShortAccumTy, BuiltinType::UShortAccum); | |||
1307 | InitBuiltinType(UnsignedAccumTy, BuiltinType::UAccum); | |||
1308 | InitBuiltinType(UnsignedLongAccumTy, BuiltinType::ULongAccum); | |||
1309 | InitBuiltinType(ShortFractTy, BuiltinType::ShortFract); | |||
1310 | InitBuiltinType(FractTy, BuiltinType::Fract); | |||
1311 | InitBuiltinType(LongFractTy, BuiltinType::LongFract); | |||
1312 | InitBuiltinType(UnsignedShortFractTy, BuiltinType::UShortFract); | |||
1313 | InitBuiltinType(UnsignedFractTy, BuiltinType::UFract); | |||
1314 | InitBuiltinType(UnsignedLongFractTy, BuiltinType::ULongFract); | |||
1315 | InitBuiltinType(SatShortAccumTy, BuiltinType::SatShortAccum); | |||
1316 | InitBuiltinType(SatAccumTy, BuiltinType::SatAccum); | |||
1317 | InitBuiltinType(SatLongAccumTy, BuiltinType::SatLongAccum); | |||
1318 | InitBuiltinType(SatUnsignedShortAccumTy, BuiltinType::SatUShortAccum); | |||
1319 | InitBuiltinType(SatUnsignedAccumTy, BuiltinType::SatUAccum); | |||
1320 | InitBuiltinType(SatUnsignedLongAccumTy, BuiltinType::SatULongAccum); | |||
1321 | InitBuiltinType(SatShortFractTy, BuiltinType::SatShortFract); | |||
1322 | InitBuiltinType(SatFractTy, BuiltinType::SatFract); | |||
1323 | InitBuiltinType(SatLongFractTy, BuiltinType::SatLongFract); | |||
1324 | InitBuiltinType(SatUnsignedShortFractTy, BuiltinType::SatUShortFract); | |||
1325 | InitBuiltinType(SatUnsignedFractTy, BuiltinType::SatUFract); | |||
1326 | InitBuiltinType(SatUnsignedLongFractTy, BuiltinType::SatULongFract); | |||
1327 | ||||
1328 | // GNU extension, 128-bit integers. | |||
1329 | InitBuiltinType(Int128Ty, BuiltinType::Int128); | |||
1330 | InitBuiltinType(UnsignedInt128Ty, BuiltinType::UInt128); | |||
1331 | ||||
1332 | // C++ 3.9.1p5 | |||
1333 | if (TargetInfo::isTypeSigned(Target.getWCharType())) | |||
1334 | InitBuiltinType(WCharTy, BuiltinType::WChar_S); | |||
1335 | else // -fshort-wchar makes wchar_t be unsigned. | |||
1336 | InitBuiltinType(WCharTy, BuiltinType::WChar_U); | |||
1337 | if (LangOpts.CPlusPlus && LangOpts.WChar) | |||
1338 | WideCharTy = WCharTy; | |||
1339 | else { | |||
1340 | // C99 (or C++ using -fno-wchar). | |||
1341 | WideCharTy = getFromTargetType(Target.getWCharType()); | |||
1342 | } | |||
1343 | ||||
1344 | WIntTy = getFromTargetType(Target.getWIntType()); | |||
1345 | ||||
1346 | // C++20 (proposed) | |||
1347 | InitBuiltinType(Char8Ty, BuiltinType::Char8); | |||
1348 | ||||
1349 | if (LangOpts.CPlusPlus) // C++0x 3.9.1p5, extension for C++ | |||
1350 | InitBuiltinType(Char16Ty, BuiltinType::Char16); | |||
1351 | else // C99 | |||
1352 | Char16Ty = getFromTargetType(Target.getChar16Type()); | |||
1353 | ||||
1354 | if (LangOpts.CPlusPlus) // C++0x 3.9.1p5, extension for C++ | |||
1355 | InitBuiltinType(Char32Ty, BuiltinType::Char32); | |||
1356 | else // C99 | |||
1357 | Char32Ty = getFromTargetType(Target.getChar32Type()); | |||
1358 | ||||
1359 | // Placeholder type for type-dependent expressions whose type is | |||
1360 | // completely unknown. No code should ever check a type against | |||
1361 | // DependentTy and users should never see it; however, it is here to | |||
1362 | // help diagnose failures to properly check for type-dependent | |||
1363 | // expressions. | |||
1364 | InitBuiltinType(DependentTy, BuiltinType::Dependent); | |||
1365 | ||||
1366 | // Placeholder type for functions. | |||
1367 | InitBuiltinType(OverloadTy, BuiltinType::Overload); | |||
1368 | ||||
1369 | // Placeholder type for bound members. | |||
1370 | InitBuiltinType(BoundMemberTy, BuiltinType::BoundMember); | |||
1371 | ||||
1372 | // Placeholder type for pseudo-objects. | |||
1373 | InitBuiltinType(PseudoObjectTy, BuiltinType::PseudoObject); | |||
1374 | ||||
1375 | // "any" type; useful for debugger-like clients. | |||
1376 | InitBuiltinType(UnknownAnyTy, BuiltinType::UnknownAny); | |||
1377 | ||||
1378 | // Placeholder type for unbridged ARC casts. | |||
1379 | InitBuiltinType(ARCUnbridgedCastTy, BuiltinType::ARCUnbridgedCast); | |||
1380 | ||||
1381 | // Placeholder type for builtin functions. | |||
1382 | InitBuiltinType(BuiltinFnTy, BuiltinType::BuiltinFn); | |||
1383 | ||||
1384 | // Placeholder type for OMP array sections. | |||
1385 | if (LangOpts.OpenMP) { | |||
1386 | InitBuiltinType(OMPArraySectionTy, BuiltinType::OMPArraySection); | |||
1387 | InitBuiltinType(OMPArrayShapingTy, BuiltinType::OMPArrayShaping); | |||
1388 | InitBuiltinType(OMPIteratorTy, BuiltinType::OMPIterator); | |||
1389 | } | |||
1390 | if (LangOpts.MatrixTypes) | |||
1391 | InitBuiltinType(IncompleteMatrixIdxTy, BuiltinType::IncompleteMatrixIdx); | |||
1392 | ||||
1393 | // C99 6.2.5p11. | |||
1394 | FloatComplexTy = getComplexType(FloatTy); | |||
1395 | DoubleComplexTy = getComplexType(DoubleTy); | |||
1396 | LongDoubleComplexTy = getComplexType(LongDoubleTy); | |||
1397 | Float128ComplexTy = getComplexType(Float128Ty); | |||
1398 | ||||
1399 | // Builtin types for 'id', 'Class', and 'SEL'. | |||
1400 | InitBuiltinType(ObjCBuiltinIdTy, BuiltinType::ObjCId); | |||
1401 | InitBuiltinType(ObjCBuiltinClassTy, BuiltinType::ObjCClass); | |||
1402 | InitBuiltinType(ObjCBuiltinSelTy, BuiltinType::ObjCSel); | |||
1403 | ||||
1404 | if (LangOpts.OpenCL) { | |||
1405 | #define IMAGE_TYPE(ImgType, Id, SingletonId, Access, Suffix) \ | |||
1406 | InitBuiltinType(SingletonId, BuiltinType::Id); | |||
1407 | #include "clang/Basic/OpenCLImageTypes.def" | |||
1408 | ||||
1409 | InitBuiltinType(OCLSamplerTy, BuiltinType::OCLSampler); | |||
1410 | InitBuiltinType(OCLEventTy, BuiltinType::OCLEvent); | |||
1411 | InitBuiltinType(OCLClkEventTy, BuiltinType::OCLClkEvent); | |||
1412 | InitBuiltinType(OCLQueueTy, BuiltinType::OCLQueue); | |||
1413 | InitBuiltinType(OCLReserveIDTy, BuiltinType::OCLReserveID); | |||
1414 | ||||
1415 | #define EXT_OPAQUE_TYPE(ExtType, Id, Ext) \ | |||
1416 | InitBuiltinType(Id##Ty, BuiltinType::Id); | |||
1417 | #include "clang/Basic/OpenCLExtensionTypes.def" | |||
1418 | } | |||
1419 | ||||
1420 | if (Target.hasAArch64SVETypes()) { | |||
1421 | #define SVE_TYPE(Name, Id, SingletonId) \ | |||
1422 | InitBuiltinType(SingletonId, BuiltinType::Id); | |||
1423 | #include "clang/Basic/AArch64SVEACLETypes.def" | |||
1424 | } | |||
1425 | ||||
1426 | if (Target.getTriple().isPPC64() && | |||
1427 | Target.hasFeature("paired-vector-memops")) { | |||
1428 | if (Target.hasFeature("mma")) { | |||
1429 | #define PPC_VECTOR_MMA_TYPE(Name, Id, Size) \ | |||
1430 | InitBuiltinType(Id##Ty, BuiltinType::Id); | |||
1431 | #include "clang/Basic/PPCTypes.def" | |||
1432 | } | |||
1433 | #define PPC_VECTOR_VSX_TYPE(Name, Id, Size) \ | |||
1434 | InitBuiltinType(Id##Ty, BuiltinType::Id); | |||
1435 | #include "clang/Basic/PPCTypes.def" | |||
1436 | } | |||
1437 | ||||
1438 | // Builtin type for __objc_yes and __objc_no | |||
1439 | ObjCBuiltinBoolTy = (Target.useSignedCharForObjCBool() ? | |||
1440 | SignedCharTy : BoolTy); | |||
1441 | ||||
1442 | ObjCConstantStringType = QualType(); | |||
1443 | ||||
1444 | ObjCSuperType = QualType(); | |||
1445 | ||||
1446 | // void * type | |||
1447 | if (LangOpts.OpenCLVersion >= 200) { | |||
1448 | auto Q = VoidTy.getQualifiers(); | |||
1449 | Q.setAddressSpace(LangAS::opencl_generic); | |||
1450 | VoidPtrTy = getPointerType(getCanonicalType( | |||
1451 | getQualifiedType(VoidTy.getUnqualifiedType(), Q))); | |||
1452 | } else { | |||
1453 | VoidPtrTy = getPointerType(VoidTy); | |||
1454 | } | |||
1455 | ||||
1456 | // nullptr type (C++0x 2.14.7) | |||
1457 | InitBuiltinType(NullPtrTy, BuiltinType::NullPtr); | |||
1458 | ||||
1459 | // half type (OpenCL 6.1.1.1) / ARM NEON __fp16 | |||
1460 | InitBuiltinType(HalfTy, BuiltinType::Half); | |||
1461 | ||||
1462 | InitBuiltinType(BFloat16Ty, BuiltinType::BFloat16); | |||
1463 | ||||
1464 | // Builtin type used to help define __builtin_va_list. | |||
1465 | VaListTagDecl = nullptr; | |||
1466 | ||||
1467 | // MSVC predeclares struct _GUID, and we need it to create MSGuidDecls. | |||
1468 | if (LangOpts.MicrosoftExt || LangOpts.Borland) { | |||
1469 | MSGuidTagDecl = buildImplicitRecord("_GUID"); | |||
1470 | TUDecl->addDecl(MSGuidTagDecl); | |||
1471 | } | |||
1472 | } | |||
1473 | ||||
1474 | DiagnosticsEngine &ASTContext::getDiagnostics() const { | |||
1475 | return SourceMgr.getDiagnostics(); | |||
1476 | } | |||
1477 | ||||
1478 | AttrVec& ASTContext::getDeclAttrs(const Decl *D) { | |||
1479 | AttrVec *&Result = DeclAttrs[D]; | |||
1480 | if (!Result) { | |||
1481 | void *Mem = Allocate(sizeof(AttrVec)); | |||
1482 | Result = new (Mem) AttrVec; | |||
1483 | } | |||
1484 | ||||
1485 | return *Result; | |||
1486 | } | |||
1487 | ||||
1488 | /// Erase the attributes corresponding to the given declaration. | |||
1489 | void ASTContext::eraseDeclAttrs(const Decl *D) { | |||
1490 | llvm::DenseMap<const Decl*, AttrVec*>::iterator Pos = DeclAttrs.find(D); | |||
1491 | if (Pos != DeclAttrs.end()) { | |||
1492 | Pos->second->~AttrVec(); | |||
1493 | DeclAttrs.erase(Pos); | |||
1494 | } | |||
1495 | } | |||
1496 | ||||
1497 | // FIXME: Remove ? | |||
1498 | MemberSpecializationInfo * | |||
1499 | ASTContext::getInstantiatedFromStaticDataMember(const VarDecl *Var) { | |||
1500 | assert(Var->isStaticDataMember() && "Not a static data member")((Var->isStaticDataMember() && "Not a static data member" ) ? static_cast<void> (0) : __assert_fail ("Var->isStaticDataMember() && \"Not a static data member\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 1500, __PRETTY_FUNCTION__)); | |||
1501 | return getTemplateOrSpecializationInfo(Var) | |||
1502 | .dyn_cast<MemberSpecializationInfo *>(); | |||
1503 | } | |||
1504 | ||||
1505 | ASTContext::TemplateOrSpecializationInfo | |||
1506 | ASTContext::getTemplateOrSpecializationInfo(const VarDecl *Var) { | |||
1507 | llvm::DenseMap<const VarDecl *, TemplateOrSpecializationInfo>::iterator Pos = | |||
1508 | TemplateOrInstantiation.find(Var); | |||
1509 | if (Pos == TemplateOrInstantiation.end()) | |||
1510 | return {}; | |||
1511 | ||||
1512 | return Pos->second; | |||
1513 | } | |||
1514 | ||||
1515 | void | |||
1516 | ASTContext::setInstantiatedFromStaticDataMember(VarDecl *Inst, VarDecl *Tmpl, | |||
1517 | TemplateSpecializationKind TSK, | |||
1518 | SourceLocation PointOfInstantiation) { | |||
1519 | assert(Inst->isStaticDataMember() && "Not a static data member")((Inst->isStaticDataMember() && "Not a static data member" ) ? static_cast<void> (0) : __assert_fail ("Inst->isStaticDataMember() && \"Not a static data member\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 1519, __PRETTY_FUNCTION__)); | |||
1520 | assert(Tmpl->isStaticDataMember() && "Not a static data member")((Tmpl->isStaticDataMember() && "Not a static data member" ) ? static_cast<void> (0) : __assert_fail ("Tmpl->isStaticDataMember() && \"Not a static data member\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 1520, __PRETTY_FUNCTION__)); | |||
1521 | setTemplateOrSpecializationInfo(Inst, new (*this) MemberSpecializationInfo( | |||
1522 | Tmpl, TSK, PointOfInstantiation)); | |||
1523 | } | |||
1524 | ||||
1525 | void | |||
1526 | ASTContext::setTemplateOrSpecializationInfo(VarDecl *Inst, | |||
1527 | TemplateOrSpecializationInfo TSI) { | |||
1528 | assert(!TemplateOrInstantiation[Inst] &&((!TemplateOrInstantiation[Inst] && "Already noted what the variable was instantiated from" ) ? static_cast<void> (0) : __assert_fail ("!TemplateOrInstantiation[Inst] && \"Already noted what the variable was instantiated from\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 1529, __PRETTY_FUNCTION__)) | |||
1529 | "Already noted what the variable was instantiated from")((!TemplateOrInstantiation[Inst] && "Already noted what the variable was instantiated from" ) ? static_cast<void> (0) : __assert_fail ("!TemplateOrInstantiation[Inst] && \"Already noted what the variable was instantiated from\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 1529, __PRETTY_FUNCTION__)); | |||
1530 | TemplateOrInstantiation[Inst] = TSI; | |||
1531 | } | |||
1532 | ||||
1533 | NamedDecl * | |||
1534 | ASTContext::getInstantiatedFromUsingDecl(NamedDecl *UUD) { | |||
1535 | auto Pos = InstantiatedFromUsingDecl.find(UUD); | |||
1536 | if (Pos == InstantiatedFromUsingDecl.end()) | |||
1537 | return nullptr; | |||
1538 | ||||
1539 | return Pos->second; | |||
1540 | } | |||
1541 | ||||
1542 | void | |||
1543 | ASTContext::setInstantiatedFromUsingDecl(NamedDecl *Inst, NamedDecl *Pattern) { | |||
1544 | assert((isa<UsingDecl>(Pattern) ||(((isa<UsingDecl>(Pattern) || isa<UnresolvedUsingValueDecl >(Pattern) || isa<UnresolvedUsingTypenameDecl>(Pattern )) && "pattern decl is not a using decl") ? static_cast <void> (0) : __assert_fail ("(isa<UsingDecl>(Pattern) || isa<UnresolvedUsingValueDecl>(Pattern) || isa<UnresolvedUsingTypenameDecl>(Pattern)) && \"pattern decl is not a using decl\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 1547, __PRETTY_FUNCTION__)) | |||
1545 | isa<UnresolvedUsingValueDecl>(Pattern) ||(((isa<UsingDecl>(Pattern) || isa<UnresolvedUsingValueDecl >(Pattern) || isa<UnresolvedUsingTypenameDecl>(Pattern )) && "pattern decl is not a using decl") ? static_cast <void> (0) : __assert_fail ("(isa<UsingDecl>(Pattern) || isa<UnresolvedUsingValueDecl>(Pattern) || isa<UnresolvedUsingTypenameDecl>(Pattern)) && \"pattern decl is not a using decl\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 1547, __PRETTY_FUNCTION__)) | |||
1546 | isa<UnresolvedUsingTypenameDecl>(Pattern)) &&(((isa<UsingDecl>(Pattern) || isa<UnresolvedUsingValueDecl >(Pattern) || isa<UnresolvedUsingTypenameDecl>(Pattern )) && "pattern decl is not a using decl") ? static_cast <void> (0) : __assert_fail ("(isa<UsingDecl>(Pattern) || isa<UnresolvedUsingValueDecl>(Pattern) || isa<UnresolvedUsingTypenameDecl>(Pattern)) && \"pattern decl is not a using decl\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 1547, __PRETTY_FUNCTION__)) | |||
1547 | "pattern decl is not a using decl")(((isa<UsingDecl>(Pattern) || isa<UnresolvedUsingValueDecl >(Pattern) || isa<UnresolvedUsingTypenameDecl>(Pattern )) && "pattern decl is not a using decl") ? static_cast <void> (0) : __assert_fail ("(isa<UsingDecl>(Pattern) || isa<UnresolvedUsingValueDecl>(Pattern) || isa<UnresolvedUsingTypenameDecl>(Pattern)) && \"pattern decl is not a using decl\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 1547, __PRETTY_FUNCTION__)); | |||
1548 | assert((isa<UsingDecl>(Inst) ||(((isa<UsingDecl>(Inst) || isa<UnresolvedUsingValueDecl >(Inst) || isa<UnresolvedUsingTypenameDecl>(Inst)) && "instantiation did not produce a using decl") ? static_cast< void> (0) : __assert_fail ("(isa<UsingDecl>(Inst) || isa<UnresolvedUsingValueDecl>(Inst) || isa<UnresolvedUsingTypenameDecl>(Inst)) && \"instantiation did not produce a using decl\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 1551, __PRETTY_FUNCTION__)) | |||
1549 | isa<UnresolvedUsingValueDecl>(Inst) ||(((isa<UsingDecl>(Inst) || isa<UnresolvedUsingValueDecl >(Inst) || isa<UnresolvedUsingTypenameDecl>(Inst)) && "instantiation did not produce a using decl") ? static_cast< void> (0) : __assert_fail ("(isa<UsingDecl>(Inst) || isa<UnresolvedUsingValueDecl>(Inst) || isa<UnresolvedUsingTypenameDecl>(Inst)) && \"instantiation did not produce a using decl\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 1551, __PRETTY_FUNCTION__)) | |||
1550 | isa<UnresolvedUsingTypenameDecl>(Inst)) &&(((isa<UsingDecl>(Inst) || isa<UnresolvedUsingValueDecl >(Inst) || isa<UnresolvedUsingTypenameDecl>(Inst)) && "instantiation did not produce a using decl") ? static_cast< void> (0) : __assert_fail ("(isa<UsingDecl>(Inst) || isa<UnresolvedUsingValueDecl>(Inst) || isa<UnresolvedUsingTypenameDecl>(Inst)) && \"instantiation did not produce a using decl\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 1551, __PRETTY_FUNCTION__)) | |||
1551 | "instantiation did not produce a using decl")(((isa<UsingDecl>(Inst) || isa<UnresolvedUsingValueDecl >(Inst) || isa<UnresolvedUsingTypenameDecl>(Inst)) && "instantiation did not produce a using decl") ? static_cast< void> (0) : __assert_fail ("(isa<UsingDecl>(Inst) || isa<UnresolvedUsingValueDecl>(Inst) || isa<UnresolvedUsingTypenameDecl>(Inst)) && \"instantiation did not produce a using decl\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 1551, __PRETTY_FUNCTION__)); | |||
1552 | assert(!InstantiatedFromUsingDecl[Inst] && "pattern already exists")((!InstantiatedFromUsingDecl[Inst] && "pattern already exists" ) ? static_cast<void> (0) : __assert_fail ("!InstantiatedFromUsingDecl[Inst] && \"pattern already exists\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 1552, __PRETTY_FUNCTION__)); | |||
1553 | InstantiatedFromUsingDecl[Inst] = Pattern; | |||
1554 | } | |||
1555 | ||||
1556 | UsingShadowDecl * | |||
1557 | ASTContext::getInstantiatedFromUsingShadowDecl(UsingShadowDecl *Inst) { | |||
1558 | llvm::DenseMap<UsingShadowDecl*, UsingShadowDecl*>::const_iterator Pos | |||
1559 | = InstantiatedFromUsingShadowDecl.find(Inst); | |||
1560 | if (Pos == InstantiatedFromUsingShadowDecl.end()) | |||
1561 | return nullptr; | |||
1562 | ||||
1563 | return Pos->second; | |||
1564 | } | |||
1565 | ||||
1566 | void | |||
1567 | ASTContext::setInstantiatedFromUsingShadowDecl(UsingShadowDecl *Inst, | |||
1568 | UsingShadowDecl *Pattern) { | |||
1569 | assert(!InstantiatedFromUsingShadowDecl[Inst] && "pattern already exists")((!InstantiatedFromUsingShadowDecl[Inst] && "pattern already exists" ) ? static_cast<void> (0) : __assert_fail ("!InstantiatedFromUsingShadowDecl[Inst] && \"pattern already exists\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 1569, __PRETTY_FUNCTION__)); | |||
1570 | InstantiatedFromUsingShadowDecl[Inst] = Pattern; | |||
1571 | } | |||
1572 | ||||
1573 | FieldDecl *ASTContext::getInstantiatedFromUnnamedFieldDecl(FieldDecl *Field) { | |||
1574 | llvm::DenseMap<FieldDecl *, FieldDecl *>::iterator Pos | |||
1575 | = InstantiatedFromUnnamedFieldDecl.find(Field); | |||
1576 | if (Pos == InstantiatedFromUnnamedFieldDecl.end()) | |||
1577 | return nullptr; | |||
1578 | ||||
1579 | return Pos->second; | |||
1580 | } | |||
1581 | ||||
1582 | void ASTContext::setInstantiatedFromUnnamedFieldDecl(FieldDecl *Inst, | |||
1583 | FieldDecl *Tmpl) { | |||
1584 | assert(!Inst->getDeclName() && "Instantiated field decl is not unnamed")((!Inst->getDeclName() && "Instantiated field decl is not unnamed" ) ? static_cast<void> (0) : __assert_fail ("!Inst->getDeclName() && \"Instantiated field decl is not unnamed\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 1584, __PRETTY_FUNCTION__)); | |||
1585 | assert(!Tmpl->getDeclName() && "Template field decl is not unnamed")((!Tmpl->getDeclName() && "Template field decl is not unnamed" ) ? static_cast<void> (0) : __assert_fail ("!Tmpl->getDeclName() && \"Template field decl is not unnamed\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 1585, __PRETTY_FUNCTION__)); | |||
1586 | assert(!InstantiatedFromUnnamedFieldDecl[Inst] &&((!InstantiatedFromUnnamedFieldDecl[Inst] && "Already noted what unnamed field was instantiated from" ) ? static_cast<void> (0) : __assert_fail ("!InstantiatedFromUnnamedFieldDecl[Inst] && \"Already noted what unnamed field was instantiated from\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 1587, __PRETTY_FUNCTION__)) | |||
1587 | "Already noted what unnamed field was instantiated from")((!InstantiatedFromUnnamedFieldDecl[Inst] && "Already noted what unnamed field was instantiated from" ) ? static_cast<void> (0) : __assert_fail ("!InstantiatedFromUnnamedFieldDecl[Inst] && \"Already noted what unnamed field was instantiated from\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 1587, __PRETTY_FUNCTION__)); | |||
1588 | ||||
1589 | InstantiatedFromUnnamedFieldDecl[Inst] = Tmpl; | |||
1590 | } | |||
1591 | ||||
1592 | ASTContext::overridden_cxx_method_iterator | |||
1593 | ASTContext::overridden_methods_begin(const CXXMethodDecl *Method) const { | |||
1594 | return overridden_methods(Method).begin(); | |||
1595 | } | |||
1596 | ||||
1597 | ASTContext::overridden_cxx_method_iterator | |||
1598 | ASTContext::overridden_methods_end(const CXXMethodDecl *Method) const { | |||
1599 | return overridden_methods(Method).end(); | |||
1600 | } | |||
1601 | ||||
1602 | unsigned | |||
1603 | ASTContext::overridden_methods_size(const CXXMethodDecl *Method) const { | |||
1604 | auto Range = overridden_methods(Method); | |||
1605 | return Range.end() - Range.begin(); | |||
1606 | } | |||
1607 | ||||
1608 | ASTContext::overridden_method_range | |||
1609 | ASTContext::overridden_methods(const CXXMethodDecl *Method) const { | |||
1610 | llvm::DenseMap<const CXXMethodDecl *, CXXMethodVector>::const_iterator Pos = | |||
1611 | OverriddenMethods.find(Method->getCanonicalDecl()); | |||
1612 | if (Pos == OverriddenMethods.end()) | |||
1613 | return overridden_method_range(nullptr, nullptr); | |||
1614 | return overridden_method_range(Pos->second.begin(), Pos->second.end()); | |||
1615 | } | |||
1616 | ||||
1617 | void ASTContext::addOverriddenMethod(const CXXMethodDecl *Method, | |||
1618 | const CXXMethodDecl *Overridden) { | |||
1619 | assert(Method->isCanonicalDecl() && Overridden->isCanonicalDecl())((Method->isCanonicalDecl() && Overridden->isCanonicalDecl ()) ? static_cast<void> (0) : __assert_fail ("Method->isCanonicalDecl() && Overridden->isCanonicalDecl()" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 1619, __PRETTY_FUNCTION__)); | |||
1620 | OverriddenMethods[Method].push_back(Overridden); | |||
1621 | } | |||
1622 | ||||
1623 | void ASTContext::getOverriddenMethods( | |||
1624 | const NamedDecl *D, | |||
1625 | SmallVectorImpl<const NamedDecl *> &Overridden) const { | |||
1626 | assert(D)((D) ? static_cast<void> (0) : __assert_fail ("D", "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 1626, __PRETTY_FUNCTION__)); | |||
1627 | ||||
1628 | if (const auto *CXXMethod = dyn_cast<CXXMethodDecl>(D)) { | |||
1629 | Overridden.append(overridden_methods_begin(CXXMethod), | |||
1630 | overridden_methods_end(CXXMethod)); | |||
1631 | return; | |||
1632 | } | |||
1633 | ||||
1634 | const auto *Method = dyn_cast<ObjCMethodDecl>(D); | |||
1635 | if (!Method) | |||
1636 | return; | |||
1637 | ||||
1638 | SmallVector<const ObjCMethodDecl *, 8> OverDecls; | |||
1639 | Method->getOverriddenMethods(OverDecls); | |||
1640 | Overridden.append(OverDecls.begin(), OverDecls.end()); | |||
1641 | } | |||
1642 | ||||
1643 | void ASTContext::addedLocalImportDecl(ImportDecl *Import) { | |||
1644 | assert(!Import->getNextLocalImport() &&((!Import->getNextLocalImport() && "Import declaration already in the chain" ) ? static_cast<void> (0) : __assert_fail ("!Import->getNextLocalImport() && \"Import declaration already in the chain\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 1645, __PRETTY_FUNCTION__)) | |||
1645 | "Import declaration already in the chain")((!Import->getNextLocalImport() && "Import declaration already in the chain" ) ? static_cast<void> (0) : __assert_fail ("!Import->getNextLocalImport() && \"Import declaration already in the chain\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 1645, __PRETTY_FUNCTION__)); | |||
1646 | assert(!Import->isFromASTFile() && "Non-local import declaration")((!Import->isFromASTFile() && "Non-local import declaration" ) ? static_cast<void> (0) : __assert_fail ("!Import->isFromASTFile() && \"Non-local import declaration\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 1646, __PRETTY_FUNCTION__)); | |||
1647 | if (!FirstLocalImport) { | |||
1648 | FirstLocalImport = Import; | |||
1649 | LastLocalImport = Import; | |||
1650 | return; | |||
1651 | } | |||
1652 | ||||
1653 | LastLocalImport->setNextLocalImport(Import); | |||
1654 | LastLocalImport = Import; | |||
1655 | } | |||
1656 | ||||
1657 | //===----------------------------------------------------------------------===// | |||
1658 | // Type Sizing and Analysis | |||
1659 | //===----------------------------------------------------------------------===// | |||
1660 | ||||
1661 | /// getFloatTypeSemantics - Return the APFloat 'semantics' for the specified | |||
1662 | /// scalar floating point type. | |||
1663 | const llvm::fltSemantics &ASTContext::getFloatTypeSemantics(QualType T) const { | |||
1664 | switch (T->castAs<BuiltinType>()->getKind()) { | |||
1665 | default: | |||
1666 | llvm_unreachable("Not a floating point type!")::llvm::llvm_unreachable_internal("Not a floating point type!" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 1666); | |||
1667 | case BuiltinType::BFloat16: | |||
1668 | return Target->getBFloat16Format(); | |||
1669 | case BuiltinType::Float16: | |||
1670 | case BuiltinType::Half: | |||
1671 | return Target->getHalfFormat(); | |||
1672 | case BuiltinType::Float: return Target->getFloatFormat(); | |||
1673 | case BuiltinType::Double: return Target->getDoubleFormat(); | |||
1674 | case BuiltinType::LongDouble: | |||
1675 | if (getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice) | |||
1676 | return AuxTarget->getLongDoubleFormat(); | |||
1677 | return Target->getLongDoubleFormat(); | |||
1678 | case BuiltinType::Float128: | |||
1679 | if (getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice) | |||
1680 | return AuxTarget->getFloat128Format(); | |||
1681 | return Target->getFloat128Format(); | |||
1682 | } | |||
1683 | } | |||
1684 | ||||
1685 | CharUnits ASTContext::getDeclAlign(const Decl *D, bool ForAlignof) const { | |||
1686 | unsigned Align = Target->getCharWidth(); | |||
1687 | ||||
1688 | bool UseAlignAttrOnly = false; | |||
1689 | if (unsigned AlignFromAttr = D->getMaxAlignment()) { | |||
1690 | Align = AlignFromAttr; | |||
1691 | ||||
1692 | // __attribute__((aligned)) can increase or decrease alignment | |||
1693 | // *except* on a struct or struct member, where it only increases | |||
1694 | // alignment unless 'packed' is also specified. | |||
1695 | // | |||
1696 | // It is an error for alignas to decrease alignment, so we can | |||
1697 | // ignore that possibility; Sema should diagnose it. | |||
1698 | if (isa<FieldDecl>(D)) { | |||
1699 | UseAlignAttrOnly = D->hasAttr<PackedAttr>() || | |||
1700 | cast<FieldDecl>(D)->getParent()->hasAttr<PackedAttr>(); | |||
1701 | } else { | |||
1702 | UseAlignAttrOnly = true; | |||
1703 | } | |||
1704 | } | |||
1705 | else if (isa<FieldDecl>(D)) | |||
1706 | UseAlignAttrOnly = | |||
1707 | D->hasAttr<PackedAttr>() || | |||
1708 | cast<FieldDecl>(D)->getParent()->hasAttr<PackedAttr>(); | |||
1709 | ||||
1710 | // If we're using the align attribute only, just ignore everything | |||
1711 | // else about the declaration and its type. | |||
1712 | if (UseAlignAttrOnly) { | |||
1713 | // do nothing | |||
1714 | } else if (const auto *VD = dyn_cast<ValueDecl>(D)) { | |||
1715 | QualType T = VD->getType(); | |||
1716 | if (const auto *RT = T->getAs<ReferenceType>()) { | |||
1717 | if (ForAlignof) | |||
1718 | T = RT->getPointeeType(); | |||
1719 | else | |||
1720 | T = getPointerType(RT->getPointeeType()); | |||
1721 | } | |||
1722 | QualType BaseT = getBaseElementType(T); | |||
1723 | if (T->isFunctionType()) | |||
1724 | Align = getTypeInfoImpl(T.getTypePtr()).Align; | |||
1725 | else if (!BaseT->isIncompleteType()) { | |||
1726 | // Adjust alignments of declarations with array type by the | |||
1727 | // large-array alignment on the target. | |||
1728 | if (const ArrayType *arrayType = getAsArrayType(T)) { | |||
1729 | unsigned MinWidth = Target->getLargeArrayMinWidth(); | |||
1730 | if (!ForAlignof && MinWidth) { | |||
1731 | if (isa<VariableArrayType>(arrayType)) | |||
1732 | Align = std::max(Align, Target->getLargeArrayAlign()); | |||
1733 | else if (isa<ConstantArrayType>(arrayType) && | |||
1734 | MinWidth <= getTypeSize(cast<ConstantArrayType>(arrayType))) | |||
1735 | Align = std::max(Align, Target->getLargeArrayAlign()); | |||
1736 | } | |||
1737 | } | |||
1738 | Align = std::max(Align, getPreferredTypeAlign(T.getTypePtr())); | |||
1739 | if (BaseT.getQualifiers().hasUnaligned()) | |||
1740 | Align = Target->getCharWidth(); | |||
1741 | if (const auto *VD = dyn_cast<VarDecl>(D)) { | |||
1742 | if (VD->hasGlobalStorage() && !ForAlignof) { | |||
1743 | uint64_t TypeSize = getTypeSize(T.getTypePtr()); | |||
1744 | Align = std::max(Align, getTargetInfo().getMinGlobalAlign(TypeSize)); | |||
1745 | } | |||
1746 | } | |||
1747 | } | |||
1748 | ||||
1749 | // Fields can be subject to extra alignment constraints, like if | |||
1750 | // the field is packed, the struct is packed, or the struct has a | |||
1751 | // a max-field-alignment constraint (#pragma pack). So calculate | |||
1752 | // the actual alignment of the field within the struct, and then | |||
1753 | // (as we're expected to) constrain that by the alignment of the type. | |||
1754 | if (const auto *Field = dyn_cast<FieldDecl>(VD)) { | |||
1755 | const RecordDecl *Parent = Field->getParent(); | |||
1756 | // We can only produce a sensible answer if the record is valid. | |||
1757 | if (!Parent->isInvalidDecl()) { | |||
1758 | const ASTRecordLayout &Layout = getASTRecordLayout(Parent); | |||
1759 | ||||
1760 | // Start with the record's overall alignment. | |||
1761 | unsigned FieldAlign = toBits(Layout.getAlignment()); | |||
1762 | ||||
1763 | // Use the GCD of that and the offset within the record. | |||
1764 | uint64_t Offset = Layout.getFieldOffset(Field->getFieldIndex()); | |||
1765 | if (Offset > 0) { | |||
1766 | // Alignment is always a power of 2, so the GCD will be a power of 2, | |||
1767 | // which means we get to do this crazy thing instead of Euclid's. | |||
1768 | uint64_t LowBitOfOffset = Offset & (~Offset + 1); | |||
1769 | if (LowBitOfOffset < FieldAlign) | |||
1770 | FieldAlign = static_cast<unsigned>(LowBitOfOffset); | |||
1771 | } | |||
1772 | ||||
1773 | Align = std::min(Align, FieldAlign); | |||
1774 | } | |||
1775 | } | |||
1776 | } | |||
1777 | ||||
1778 | return toCharUnitsFromBits(Align); | |||
1779 | } | |||
1780 | ||||
1781 | CharUnits ASTContext::getExnObjectAlignment() const { | |||
1782 | return toCharUnitsFromBits(Target->getExnObjectAlignment()); | |||
1783 | } | |||
1784 | ||||
1785 | // getTypeInfoDataSizeInChars - Return the size of a type, in | |||
1786 | // chars. If the type is a record, its data size is returned. This is | |||
1787 | // the size of the memcpy that's performed when assigning this type | |||
1788 | // using a trivial copy/move assignment operator. | |||
1789 | TypeInfoChars ASTContext::getTypeInfoDataSizeInChars(QualType T) const { | |||
1790 | TypeInfoChars Info = getTypeInfoInChars(T); | |||
1791 | ||||
1792 | // In C++, objects can sometimes be allocated into the tail padding | |||
1793 | // of a base-class subobject. We decide whether that's possible | |||
1794 | // during class layout, so here we can just trust the layout results. | |||
1795 | if (getLangOpts().CPlusPlus) { | |||
1796 | if (const auto *RT = T->getAs<RecordType>()) { | |||
1797 | const ASTRecordLayout &layout = getASTRecordLayout(RT->getDecl()); | |||
1798 | Info.Width = layout.getDataSize(); | |||
1799 | } | |||
1800 | } | |||
1801 | ||||
1802 | return Info; | |||
1803 | } | |||
1804 | ||||
1805 | /// getConstantArrayInfoInChars - Performing the computation in CharUnits | |||
1806 | /// instead of in bits prevents overflowing the uint64_t for some large arrays. | |||
1807 | TypeInfoChars | |||
1808 | static getConstantArrayInfoInChars(const ASTContext &Context, | |||
1809 | const ConstantArrayType *CAT) { | |||
1810 | TypeInfoChars EltInfo = Context.getTypeInfoInChars(CAT->getElementType()); | |||
1811 | uint64_t Size = CAT->getSize().getZExtValue(); | |||
1812 | assert((Size == 0 || static_cast<uint64_t>(EltInfo.Width.getQuantity()) <=(((Size == 0 || static_cast<uint64_t>(EltInfo.Width.getQuantity ()) <= (uint64_t)(-1)/Size) && "Overflow in array type char size evaluation" ) ? static_cast<void> (0) : __assert_fail ("(Size == 0 || static_cast<uint64_t>(EltInfo.Width.getQuantity()) <= (uint64_t)(-1)/Size) && \"Overflow in array type char size evaluation\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 1814, __PRETTY_FUNCTION__)) | |||
1813 | (uint64_t)(-1)/Size) &&(((Size == 0 || static_cast<uint64_t>(EltInfo.Width.getQuantity ()) <= (uint64_t)(-1)/Size) && "Overflow in array type char size evaluation" ) ? static_cast<void> (0) : __assert_fail ("(Size == 0 || static_cast<uint64_t>(EltInfo.Width.getQuantity()) <= (uint64_t)(-1)/Size) && \"Overflow in array type char size evaluation\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 1814, __PRETTY_FUNCTION__)) | |||
1814 | "Overflow in array type char size evaluation")(((Size == 0 || static_cast<uint64_t>(EltInfo.Width.getQuantity ()) <= (uint64_t)(-1)/Size) && "Overflow in array type char size evaluation" ) ? static_cast<void> (0) : __assert_fail ("(Size == 0 || static_cast<uint64_t>(EltInfo.Width.getQuantity()) <= (uint64_t)(-1)/Size) && \"Overflow in array type char size evaluation\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 1814, __PRETTY_FUNCTION__)); | |||
1815 | uint64_t Width = EltInfo.Width.getQuantity() * Size; | |||
1816 | unsigned Align = EltInfo.Align.getQuantity(); | |||
1817 | if (!Context.getTargetInfo().getCXXABI().isMicrosoft() || | |||
1818 | Context.getTargetInfo().getPointerWidth(0) == 64) | |||
1819 | Width = llvm::alignTo(Width, Align); | |||
1820 | return TypeInfoChars(CharUnits::fromQuantity(Width), | |||
1821 | CharUnits::fromQuantity(Align), | |||
1822 | EltInfo.AlignIsRequired); | |||
1823 | } | |||
1824 | ||||
1825 | TypeInfoChars ASTContext::getTypeInfoInChars(const Type *T) const { | |||
1826 | if (const auto *CAT = dyn_cast<ConstantArrayType>(T)) | |||
1827 | return getConstantArrayInfoInChars(*this, CAT); | |||
1828 | TypeInfo Info = getTypeInfo(T); | |||
1829 | return TypeInfoChars(toCharUnitsFromBits(Info.Width), | |||
1830 | toCharUnitsFromBits(Info.Align), | |||
1831 | Info.AlignIsRequired); | |||
1832 | } | |||
1833 | ||||
1834 | TypeInfoChars ASTContext::getTypeInfoInChars(QualType T) const { | |||
1835 | return getTypeInfoInChars(T.getTypePtr()); | |||
1836 | } | |||
1837 | ||||
1838 | bool ASTContext::isAlignmentRequired(const Type *T) const { | |||
1839 | return getTypeInfo(T).AlignIsRequired; | |||
1840 | } | |||
1841 | ||||
1842 | bool ASTContext::isAlignmentRequired(QualType T) const { | |||
1843 | return isAlignmentRequired(T.getTypePtr()); | |||
1844 | } | |||
1845 | ||||
1846 | unsigned ASTContext::getTypeAlignIfKnown(QualType T, | |||
1847 | bool NeedsPreferredAlignment) const { | |||
1848 | // An alignment on a typedef overrides anything else. | |||
1849 | if (const auto *TT = T->getAs<TypedefType>()) | |||
1850 | if (unsigned Align = TT->getDecl()->getMaxAlignment()) | |||
1851 | return Align; | |||
1852 | ||||
1853 | // If we have an (array of) complete type, we're done. | |||
1854 | T = getBaseElementType(T); | |||
1855 | if (!T->isIncompleteType()) | |||
1856 | return NeedsPreferredAlignment ? getPreferredTypeAlign(T) : getTypeAlign(T); | |||
1857 | ||||
1858 | // If we had an array type, its element type might be a typedef | |||
1859 | // type with an alignment attribute. | |||
1860 | if (const auto *TT = T->getAs<TypedefType>()) | |||
1861 | if (unsigned Align = TT->getDecl()->getMaxAlignment()) | |||
1862 | return Align; | |||
1863 | ||||
1864 | // Otherwise, see if the declaration of the type had an attribute. | |||
1865 | if (const auto *TT = T->getAs<TagType>()) | |||
1866 | return TT->getDecl()->getMaxAlignment(); | |||
1867 | ||||
1868 | return 0; | |||
1869 | } | |||
1870 | ||||
1871 | TypeInfo ASTContext::getTypeInfo(const Type *T) const { | |||
1872 | TypeInfoMap::iterator I = MemoizedTypeInfo.find(T); | |||
1873 | if (I != MemoizedTypeInfo.end()) | |||
1874 | return I->second; | |||
1875 | ||||
1876 | // This call can invalidate MemoizedTypeInfo[T], so we need a second lookup. | |||
1877 | TypeInfo TI = getTypeInfoImpl(T); | |||
1878 | MemoizedTypeInfo[T] = TI; | |||
1879 | return TI; | |||
1880 | } | |||
1881 | ||||
1882 | /// getTypeInfoImpl - Return the size of the specified type, in bits. This | |||
1883 | /// method does not work on incomplete types. | |||
1884 | /// | |||
1885 | /// FIXME: Pointers into different addr spaces could have different sizes and | |||
1886 | /// alignment requirements: getPointerInfo should take an AddrSpace, this | |||
1887 | /// should take a QualType, &c. | |||
1888 | TypeInfo ASTContext::getTypeInfoImpl(const Type *T) const { | |||
1889 | uint64_t Width = 0; | |||
1890 | unsigned Align = 8; | |||
1891 | bool AlignIsRequired = false; | |||
1892 | unsigned AS = 0; | |||
1893 | switch (T->getTypeClass()) { | |||
1894 | #define TYPE(Class, Base) | |||
1895 | #define ABSTRACT_TYPE(Class, Base) | |||
1896 | #define NON_CANONICAL_TYPE(Class, Base) | |||
1897 | #define DEPENDENT_TYPE(Class, Base) case Type::Class: | |||
1898 | #define NON_CANONICAL_UNLESS_DEPENDENT_TYPE(Class, Base) \ | |||
1899 | case Type::Class: \ | |||
1900 | assert(!T->isDependentType() && "should not see dependent types here")((!T->isDependentType() && "should not see dependent types here" ) ? static_cast<void> (0) : __assert_fail ("!T->isDependentType() && \"should not see dependent types here\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 1900, __PRETTY_FUNCTION__)); \ | |||
1901 | return getTypeInfo(cast<Class##Type>(T)->desugar().getTypePtr()); | |||
1902 | #include "clang/AST/TypeNodes.inc" | |||
1903 | llvm_unreachable("Should not see dependent types")::llvm::llvm_unreachable_internal("Should not see dependent types" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 1903); | |||
1904 | ||||
1905 | case Type::FunctionNoProto: | |||
1906 | case Type::FunctionProto: | |||
1907 | // GCC extension: alignof(function) = 32 bits | |||
1908 | Width = 0; | |||
1909 | Align = 32; | |||
1910 | break; | |||
1911 | ||||
1912 | case Type::IncompleteArray: | |||
1913 | case Type::VariableArray: | |||
1914 | case Type::ConstantArray: { | |||
1915 | // Model non-constant sized arrays as size zero, but track the alignment. | |||
1916 | uint64_t Size = 0; | |||
1917 | if (const auto *CAT = dyn_cast<ConstantArrayType>(T)) | |||
1918 | Size = CAT->getSize().getZExtValue(); | |||
1919 | ||||
1920 | TypeInfo EltInfo = getTypeInfo(cast<ArrayType>(T)->getElementType()); | |||
1921 | assert((Size == 0 || EltInfo.Width <= (uint64_t)(-1) / Size) &&(((Size == 0 || EltInfo.Width <= (uint64_t)(-1) / Size) && "Overflow in array type bit size evaluation") ? static_cast< void> (0) : __assert_fail ("(Size == 0 || EltInfo.Width <= (uint64_t)(-1) / Size) && \"Overflow in array type bit size evaluation\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 1922, __PRETTY_FUNCTION__)) | |||
1922 | "Overflow in array type bit size evaluation")(((Size == 0 || EltInfo.Width <= (uint64_t)(-1) / Size) && "Overflow in array type bit size evaluation") ? static_cast< void> (0) : __assert_fail ("(Size == 0 || EltInfo.Width <= (uint64_t)(-1) / Size) && \"Overflow in array type bit size evaluation\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 1922, __PRETTY_FUNCTION__)); | |||
1923 | Width = EltInfo.Width * Size; | |||
1924 | Align = EltInfo.Align; | |||
1925 | AlignIsRequired = EltInfo.AlignIsRequired; | |||
1926 | if (!getTargetInfo().getCXXABI().isMicrosoft() || | |||
1927 | getTargetInfo().getPointerWidth(0) == 64) | |||
1928 | Width = llvm::alignTo(Width, Align); | |||
1929 | break; | |||
1930 | } | |||
1931 | ||||
1932 | case Type::ExtVector: | |||
1933 | case Type::Vector: { | |||
1934 | const auto *VT = cast<VectorType>(T); | |||
1935 | TypeInfo EltInfo = getTypeInfo(VT->getElementType()); | |||
1936 | Width = EltInfo.Width * VT->getNumElements(); | |||
1937 | Align = Width; | |||
1938 | // If the alignment is not a power of 2, round up to the next power of 2. | |||
1939 | // This happens for non-power-of-2 length vectors. | |||
1940 | if (Align & (Align-1)) { | |||
1941 | Align = llvm::NextPowerOf2(Align); | |||
1942 | Width = llvm::alignTo(Width, Align); | |||
1943 | } | |||
1944 | // Adjust the alignment based on the target max. | |||
1945 | uint64_t TargetVectorAlign = Target->getMaxVectorAlign(); | |||
1946 | if (TargetVectorAlign && TargetVectorAlign < Align) | |||
1947 | Align = TargetVectorAlign; | |||
1948 | if (VT->getVectorKind() == VectorType::SveFixedLengthDataVector) | |||
1949 | // Adjust the alignment for fixed-length SVE vectors. This is important | |||
1950 | // for non-power-of-2 vector lengths. | |||
1951 | Align = 128; | |||
1952 | else if (VT->getVectorKind() == VectorType::SveFixedLengthPredicateVector) | |||
1953 | // Adjust the alignment for fixed-length SVE predicates. | |||
1954 | Align = 16; | |||
1955 | break; | |||
1956 | } | |||
1957 | ||||
1958 | case Type::ConstantMatrix: { | |||
1959 | const auto *MT = cast<ConstantMatrixType>(T); | |||
1960 | TypeInfo ElementInfo = getTypeInfo(MT->getElementType()); | |||
1961 | // The internal layout of a matrix value is implementation defined. | |||
1962 | // Initially be ABI compatible with arrays with respect to alignment and | |||
1963 | // size. | |||
1964 | Width = ElementInfo.Width * MT->getNumRows() * MT->getNumColumns(); | |||
1965 | Align = ElementInfo.Align; | |||
1966 | break; | |||
1967 | } | |||
1968 | ||||
1969 | case Type::Builtin: | |||
1970 | switch (cast<BuiltinType>(T)->getKind()) { | |||
1971 | default: llvm_unreachable("Unknown builtin type!")::llvm::llvm_unreachable_internal("Unknown builtin type!", "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 1971); | |||
1972 | case BuiltinType::Void: | |||
1973 | // GCC extension: alignof(void) = 8 bits. | |||
1974 | Width = 0; | |||
1975 | Align = 8; | |||
1976 | break; | |||
1977 | case BuiltinType::Bool: | |||
1978 | Width = Target->getBoolWidth(); | |||
1979 | Align = Target->getBoolAlign(); | |||
1980 | break; | |||
1981 | case BuiltinType::Char_S: | |||
1982 | case BuiltinType::Char_U: | |||
1983 | case BuiltinType::UChar: | |||
1984 | case BuiltinType::SChar: | |||
1985 | case BuiltinType::Char8: | |||
1986 | Width = Target->getCharWidth(); | |||
1987 | Align = Target->getCharAlign(); | |||
1988 | break; | |||
1989 | case BuiltinType::WChar_S: | |||
1990 | case BuiltinType::WChar_U: | |||
1991 | Width = Target->getWCharWidth(); | |||
1992 | Align = Target->getWCharAlign(); | |||
1993 | break; | |||
1994 | case BuiltinType::Char16: | |||
1995 | Width = Target->getChar16Width(); | |||
1996 | Align = Target->getChar16Align(); | |||
1997 | break; | |||
1998 | case BuiltinType::Char32: | |||
1999 | Width = Target->getChar32Width(); | |||
2000 | Align = Target->getChar32Align(); | |||
2001 | break; | |||
2002 | case BuiltinType::UShort: | |||
2003 | case BuiltinType::Short: | |||
2004 | Width = Target->getShortWidth(); | |||
2005 | Align = Target->getShortAlign(); | |||
2006 | break; | |||
2007 | case BuiltinType::UInt: | |||
2008 | case BuiltinType::Int: | |||
2009 | Width = Target->getIntWidth(); | |||
2010 | Align = Target->getIntAlign(); | |||
2011 | break; | |||
2012 | case BuiltinType::ULong: | |||
2013 | case BuiltinType::Long: | |||
2014 | Width = Target->getLongWidth(); | |||
2015 | Align = Target->getLongAlign(); | |||
2016 | break; | |||
2017 | case BuiltinType::ULongLong: | |||
2018 | case BuiltinType::LongLong: | |||
2019 | Width = Target->getLongLongWidth(); | |||
2020 | Align = Target->getLongLongAlign(); | |||
2021 | break; | |||
2022 | case BuiltinType::Int128: | |||
2023 | case BuiltinType::UInt128: | |||
2024 | Width = 128; | |||
2025 | Align = 128; // int128_t is 128-bit aligned on all targets. | |||
2026 | break; | |||
2027 | case BuiltinType::ShortAccum: | |||
2028 | case BuiltinType::UShortAccum: | |||
2029 | case BuiltinType::SatShortAccum: | |||
2030 | case BuiltinType::SatUShortAccum: | |||
2031 | Width = Target->getShortAccumWidth(); | |||
2032 | Align = Target->getShortAccumAlign(); | |||
2033 | break; | |||
2034 | case BuiltinType::Accum: | |||
2035 | case BuiltinType::UAccum: | |||
2036 | case BuiltinType::SatAccum: | |||
2037 | case BuiltinType::SatUAccum: | |||
2038 | Width = Target->getAccumWidth(); | |||
2039 | Align = Target->getAccumAlign(); | |||
2040 | break; | |||
2041 | case BuiltinType::LongAccum: | |||
2042 | case BuiltinType::ULongAccum: | |||
2043 | case BuiltinType::SatLongAccum: | |||
2044 | case BuiltinType::SatULongAccum: | |||
2045 | Width = Target->getLongAccumWidth(); | |||
2046 | Align = Target->getLongAccumAlign(); | |||
2047 | break; | |||
2048 | case BuiltinType::ShortFract: | |||
2049 | case BuiltinType::UShortFract: | |||
2050 | case BuiltinType::SatShortFract: | |||
2051 | case BuiltinType::SatUShortFract: | |||
2052 | Width = Target->getShortFractWidth(); | |||
2053 | Align = Target->getShortFractAlign(); | |||
2054 | break; | |||
2055 | case BuiltinType::Fract: | |||
2056 | case BuiltinType::UFract: | |||
2057 | case BuiltinType::SatFract: | |||
2058 | case BuiltinType::SatUFract: | |||
2059 | Width = Target->getFractWidth(); | |||
2060 | Align = Target->getFractAlign(); | |||
2061 | break; | |||
2062 | case BuiltinType::LongFract: | |||
2063 | case BuiltinType::ULongFract: | |||
2064 | case BuiltinType::SatLongFract: | |||
2065 | case BuiltinType::SatULongFract: | |||
2066 | Width = Target->getLongFractWidth(); | |||
2067 | Align = Target->getLongFractAlign(); | |||
2068 | break; | |||
2069 | case BuiltinType::BFloat16: | |||
2070 | Width = Target->getBFloat16Width(); | |||
2071 | Align = Target->getBFloat16Align(); | |||
2072 | break; | |||
2073 | case BuiltinType::Float16: | |||
2074 | case BuiltinType::Half: | |||
2075 | if (Target->hasFloat16Type() || !getLangOpts().OpenMP || | |||
2076 | !getLangOpts().OpenMPIsDevice) { | |||
2077 | Width = Target->getHalfWidth(); | |||
2078 | Align = Target->getHalfAlign(); | |||
2079 | } else { | |||
2080 | assert(getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice &&((getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice && "Expected OpenMP device compilation.") ? static_cast <void> (0) : __assert_fail ("getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice && \"Expected OpenMP device compilation.\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 2081, __PRETTY_FUNCTION__)) | |||
2081 | "Expected OpenMP device compilation.")((getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice && "Expected OpenMP device compilation.") ? static_cast <void> (0) : __assert_fail ("getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice && \"Expected OpenMP device compilation.\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 2081, __PRETTY_FUNCTION__)); | |||
2082 | Width = AuxTarget->getHalfWidth(); | |||
2083 | Align = AuxTarget->getHalfAlign(); | |||
2084 | } | |||
2085 | break; | |||
2086 | case BuiltinType::Float: | |||
2087 | Width = Target->getFloatWidth(); | |||
2088 | Align = Target->getFloatAlign(); | |||
2089 | break; | |||
2090 | case BuiltinType::Double: | |||
2091 | Width = Target->getDoubleWidth(); | |||
2092 | Align = Target->getDoubleAlign(); | |||
2093 | break; | |||
2094 | case BuiltinType::LongDouble: | |||
2095 | if (getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice && | |||
2096 | (Target->getLongDoubleWidth() != AuxTarget->getLongDoubleWidth() || | |||
2097 | Target->getLongDoubleAlign() != AuxTarget->getLongDoubleAlign())) { | |||
2098 | Width = AuxTarget->getLongDoubleWidth(); | |||
2099 | Align = AuxTarget->getLongDoubleAlign(); | |||
2100 | } else { | |||
2101 | Width = Target->getLongDoubleWidth(); | |||
2102 | Align = Target->getLongDoubleAlign(); | |||
2103 | } | |||
2104 | break; | |||
2105 | case BuiltinType::Float128: | |||
2106 | if (Target->hasFloat128Type() || !getLangOpts().OpenMP || | |||
2107 | !getLangOpts().OpenMPIsDevice) { | |||
2108 | Width = Target->getFloat128Width(); | |||
2109 | Align = Target->getFloat128Align(); | |||
2110 | } else { | |||
2111 | assert(getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice &&((getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice && "Expected OpenMP device compilation.") ? static_cast <void> (0) : __assert_fail ("getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice && \"Expected OpenMP device compilation.\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 2112, __PRETTY_FUNCTION__)) | |||
2112 | "Expected OpenMP device compilation.")((getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice && "Expected OpenMP device compilation.") ? static_cast <void> (0) : __assert_fail ("getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice && \"Expected OpenMP device compilation.\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 2112, __PRETTY_FUNCTION__)); | |||
2113 | Width = AuxTarget->getFloat128Width(); | |||
2114 | Align = AuxTarget->getFloat128Align(); | |||
2115 | } | |||
2116 | break; | |||
2117 | case BuiltinType::NullPtr: | |||
2118 | Width = Target->getPointerWidth(0); // C++ 3.9.1p11: sizeof(nullptr_t) | |||
2119 | Align = Target->getPointerAlign(0); // == sizeof(void*) | |||
2120 | break; | |||
2121 | case BuiltinType::ObjCId: | |||
2122 | case BuiltinType::ObjCClass: | |||
2123 | case BuiltinType::ObjCSel: | |||
2124 | Width = Target->getPointerWidth(0); | |||
2125 | Align = Target->getPointerAlign(0); | |||
2126 | break; | |||
2127 | case BuiltinType::OCLSampler: | |||
2128 | case BuiltinType::OCLEvent: | |||
2129 | case BuiltinType::OCLClkEvent: | |||
2130 | case BuiltinType::OCLQueue: | |||
2131 | case BuiltinType::OCLReserveID: | |||
2132 | #define IMAGE_TYPE(ImgType, Id, SingletonId, Access, Suffix) \ | |||
2133 | case BuiltinType::Id: | |||
2134 | #include "clang/Basic/OpenCLImageTypes.def" | |||
2135 | #define EXT_OPAQUE_TYPE(ExtType, Id, Ext) \ | |||
2136 | case BuiltinType::Id: | |||
2137 | #include "clang/Basic/OpenCLExtensionTypes.def" | |||
2138 | AS = getTargetAddressSpace( | |||
2139 | Target->getOpenCLTypeAddrSpace(getOpenCLTypeKind(T))); | |||
2140 | Width = Target->getPointerWidth(AS); | |||
2141 | Align = Target->getPointerAlign(AS); | |||
2142 | break; | |||
2143 | // The SVE types are effectively target-specific. The length of an | |||
2144 | // SVE_VECTOR_TYPE is only known at runtime, but it is always a multiple | |||
2145 | // of 128 bits. There is one predicate bit for each vector byte, so the | |||
2146 | // length of an SVE_PREDICATE_TYPE is always a multiple of 16 bits. | |||
2147 | // | |||
2148 | // Because the length is only known at runtime, we use a dummy value | |||
2149 | // of 0 for the static length. The alignment values are those defined | |||
2150 | // by the Procedure Call Standard for the Arm Architecture. | |||
2151 | #define SVE_VECTOR_TYPE(Name, MangledName, Id, SingletonId, NumEls, ElBits, \ | |||
2152 | IsSigned, IsFP, IsBF) \ | |||
2153 | case BuiltinType::Id: \ | |||
2154 | Width = 0; \ | |||
2155 | Align = 128; \ | |||
2156 | break; | |||
2157 | #define SVE_PREDICATE_TYPE(Name, MangledName, Id, SingletonId, NumEls) \ | |||
2158 | case BuiltinType::Id: \ | |||
2159 | Width = 0; \ | |||
2160 | Align = 16; \ | |||
2161 | break; | |||
2162 | #include "clang/Basic/AArch64SVEACLETypes.def" | |||
2163 | #define PPC_VECTOR_TYPE(Name, Id, Size) \ | |||
2164 | case BuiltinType::Id: \ | |||
2165 | Width = Size; \ | |||
2166 | Align = Size; \ | |||
2167 | break; | |||
2168 | #include "clang/Basic/PPCTypes.def" | |||
2169 | } | |||
2170 | break; | |||
2171 | case Type::ObjCObjectPointer: | |||
2172 | Width = Target->getPointerWidth(0); | |||
2173 | Align = Target->getPointerAlign(0); | |||
2174 | break; | |||
2175 | case Type::BlockPointer: | |||
2176 | AS = getTargetAddressSpace(cast<BlockPointerType>(T)->getPointeeType()); | |||
2177 | Width = Target->getPointerWidth(AS); | |||
2178 | Align = Target->getPointerAlign(AS); | |||
2179 | break; | |||
2180 | case Type::LValueReference: | |||
2181 | case Type::RValueReference: | |||
2182 | // alignof and sizeof should never enter this code path here, so we go | |||
2183 | // the pointer route. | |||
2184 | AS = getTargetAddressSpace(cast<ReferenceType>(T)->getPointeeType()); | |||
2185 | Width = Target->getPointerWidth(AS); | |||
2186 | Align = Target->getPointerAlign(AS); | |||
2187 | break; | |||
2188 | case Type::Pointer: | |||
2189 | AS = getTargetAddressSpace(cast<PointerType>(T)->getPointeeType()); | |||
2190 | Width = Target->getPointerWidth(AS); | |||
2191 | Align = Target->getPointerAlign(AS); | |||
2192 | break; | |||
2193 | case Type::MemberPointer: { | |||
2194 | const auto *MPT = cast<MemberPointerType>(T); | |||
2195 | CXXABI::MemberPointerInfo MPI = ABI->getMemberPointerInfo(MPT); | |||
2196 | Width = MPI.Width; | |||
2197 | Align = MPI.Align; | |||
2198 | break; | |||
2199 | } | |||
2200 | case Type::Complex: { | |||
2201 | // Complex types have the same alignment as their elements, but twice the | |||
2202 | // size. | |||
2203 | TypeInfo EltInfo = getTypeInfo(cast<ComplexType>(T)->getElementType()); | |||
2204 | Width = EltInfo.Width * 2; | |||
2205 | Align = EltInfo.Align; | |||
2206 | break; | |||
2207 | } | |||
2208 | case Type::ObjCObject: | |||
2209 | return getTypeInfo(cast<ObjCObjectType>(T)->getBaseType().getTypePtr()); | |||
2210 | case Type::Adjusted: | |||
2211 | case Type::Decayed: | |||
2212 | return getTypeInfo(cast<AdjustedType>(T)->getAdjustedType().getTypePtr()); | |||
2213 | case Type::ObjCInterface: { | |||
2214 | const auto *ObjCI = cast<ObjCInterfaceType>(T); | |||
2215 | if (ObjCI->getDecl()->isInvalidDecl()) { | |||
2216 | Width = 8; | |||
2217 | Align = 8; | |||
2218 | break; | |||
2219 | } | |||
2220 | const ASTRecordLayout &Layout = getASTObjCInterfaceLayout(ObjCI->getDecl()); | |||
2221 | Width = toBits(Layout.getSize()); | |||
2222 | Align = toBits(Layout.getAlignment()); | |||
2223 | break; | |||
2224 | } | |||
2225 | case Type::ExtInt: { | |||
2226 | const auto *EIT = cast<ExtIntType>(T); | |||
2227 | Align = | |||
2228 | std::min(static_cast<unsigned>(std::max( | |||
2229 | getCharWidth(), llvm::PowerOf2Ceil(EIT->getNumBits()))), | |||
2230 | Target->getLongLongAlign()); | |||
2231 | Width = llvm::alignTo(EIT->getNumBits(), Align); | |||
2232 | break; | |||
2233 | } | |||
2234 | case Type::Record: | |||
2235 | case Type::Enum: { | |||
2236 | const auto *TT = cast<TagType>(T); | |||
2237 | ||||
2238 | if (TT->getDecl()->isInvalidDecl()) { | |||
2239 | Width = 8; | |||
2240 | Align = 8; | |||
2241 | break; | |||
2242 | } | |||
2243 | ||||
2244 | if (const auto *ET = dyn_cast<EnumType>(TT)) { | |||
2245 | const EnumDecl *ED = ET->getDecl(); | |||
2246 | TypeInfo Info = | |||
2247 | getTypeInfo(ED->getIntegerType()->getUnqualifiedDesugaredType()); | |||
2248 | if (unsigned AttrAlign = ED->getMaxAlignment()) { | |||
2249 | Info.Align = AttrAlign; | |||
2250 | Info.AlignIsRequired = true; | |||
2251 | } | |||
2252 | return Info; | |||
2253 | } | |||
2254 | ||||
2255 | const auto *RT = cast<RecordType>(TT); | |||
2256 | const RecordDecl *RD = RT->getDecl(); | |||
2257 | const ASTRecordLayout &Layout = getASTRecordLayout(RD); | |||
2258 | Width = toBits(Layout.getSize()); | |||
2259 | Align = toBits(Layout.getAlignment()); | |||
2260 | AlignIsRequired = RD->hasAttr<AlignedAttr>(); | |||
2261 | break; | |||
2262 | } | |||
2263 | ||||
2264 | case Type::SubstTemplateTypeParm: | |||
2265 | return getTypeInfo(cast<SubstTemplateTypeParmType>(T)-> | |||
2266 | getReplacementType().getTypePtr()); | |||
2267 | ||||
2268 | case Type::Auto: | |||
2269 | case Type::DeducedTemplateSpecialization: { | |||
2270 | const auto *A = cast<DeducedType>(T); | |||
2271 | assert(!A->getDeducedType().isNull() &&((!A->getDeducedType().isNull() && "cannot request the size of an undeduced or dependent auto type" ) ? static_cast<void> (0) : __assert_fail ("!A->getDeducedType().isNull() && \"cannot request the size of an undeduced or dependent auto type\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 2272, __PRETTY_FUNCTION__)) | |||
2272 | "cannot request the size of an undeduced or dependent auto type")((!A->getDeducedType().isNull() && "cannot request the size of an undeduced or dependent auto type" ) ? static_cast<void> (0) : __assert_fail ("!A->getDeducedType().isNull() && \"cannot request the size of an undeduced or dependent auto type\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 2272, __PRETTY_FUNCTION__)); | |||
2273 | return getTypeInfo(A->getDeducedType().getTypePtr()); | |||
2274 | } | |||
2275 | ||||
2276 | case Type::Paren: | |||
2277 | return getTypeInfo(cast<ParenType>(T)->getInnerType().getTypePtr()); | |||
2278 | ||||
2279 | case Type::MacroQualified: | |||
2280 | return getTypeInfo( | |||
2281 | cast<MacroQualifiedType>(T)->getUnderlyingType().getTypePtr()); | |||
2282 | ||||
2283 | case Type::ObjCTypeParam: | |||
2284 | return getTypeInfo(cast<ObjCTypeParamType>(T)->desugar().getTypePtr()); | |||
2285 | ||||
2286 | case Type::Typedef: { | |||
2287 | const TypedefNameDecl *Typedef = cast<TypedefType>(T)->getDecl(); | |||
2288 | TypeInfo Info = getTypeInfo(Typedef->getUnderlyingType().getTypePtr()); | |||
2289 | // If the typedef has an aligned attribute on it, it overrides any computed | |||
2290 | // alignment we have. This violates the GCC documentation (which says that | |||
2291 | // attribute(aligned) can only round up) but matches its implementation. | |||
2292 | if (unsigned AttrAlign = Typedef->getMaxAlignment()) { | |||
2293 | Align = AttrAlign; | |||
2294 | AlignIsRequired = true; | |||
2295 | } else { | |||
2296 | Align = Info.Align; | |||
2297 | AlignIsRequired = Info.AlignIsRequired; | |||
2298 | } | |||
2299 | Width = Info.Width; | |||
2300 | break; | |||
2301 | } | |||
2302 | ||||
2303 | case Type::Elaborated: | |||
2304 | return getTypeInfo(cast<ElaboratedType>(T)->getNamedType().getTypePtr()); | |||
2305 | ||||
2306 | case Type::Attributed: | |||
2307 | return getTypeInfo( | |||
2308 | cast<AttributedType>(T)->getEquivalentType().getTypePtr()); | |||
2309 | ||||
2310 | case Type::Atomic: { | |||
2311 | // Start with the base type information. | |||
2312 | TypeInfo Info = getTypeInfo(cast<AtomicType>(T)->getValueType()); | |||
2313 | Width = Info.Width; | |||
2314 | Align = Info.Align; | |||
2315 | ||||
2316 | if (!Width) { | |||
2317 | // An otherwise zero-sized type should still generate an | |||
2318 | // atomic operation. | |||
2319 | Width = Target->getCharWidth(); | |||
2320 | assert(Align)((Align) ? static_cast<void> (0) : __assert_fail ("Align" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 2320, __PRETTY_FUNCTION__)); | |||
2321 | } else if (Width <= Target->getMaxAtomicPromoteWidth()) { | |||
2322 | // If the size of the type doesn't exceed the platform's max | |||
2323 | // atomic promotion width, make the size and alignment more | |||
2324 | // favorable to atomic operations: | |||
2325 | ||||
2326 | // Round the size up to a power of 2. | |||
2327 | if (!llvm::isPowerOf2_64(Width)) | |||
2328 | Width = llvm::NextPowerOf2(Width); | |||
2329 | ||||
2330 | // Set the alignment equal to the size. | |||
2331 | Align = static_cast<unsigned>(Width); | |||
2332 | } | |||
2333 | } | |||
2334 | break; | |||
2335 | ||||
2336 | case Type::Pipe: | |||
2337 | Width = Target->getPointerWidth(getTargetAddressSpace(LangAS::opencl_global)); | |||
2338 | Align = Target->getPointerAlign(getTargetAddressSpace(LangAS::opencl_global)); | |||
2339 | break; | |||
2340 | } | |||
2341 | ||||
2342 | assert(llvm::isPowerOf2_32(Align) && "Alignment must be power of 2")((llvm::isPowerOf2_32(Align) && "Alignment must be power of 2" ) ? static_cast<void> (0) : __assert_fail ("llvm::isPowerOf2_32(Align) && \"Alignment must be power of 2\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 2342, __PRETTY_FUNCTION__)); | |||
2343 | return TypeInfo(Width, Align, AlignIsRequired); | |||
2344 | } | |||
2345 | ||||
2346 | unsigned ASTContext::getTypeUnadjustedAlign(const Type *T) const { | |||
2347 | UnadjustedAlignMap::iterator I = MemoizedUnadjustedAlign.find(T); | |||
2348 | if (I != MemoizedUnadjustedAlign.end()) | |||
2349 | return I->second; | |||
2350 | ||||
2351 | unsigned UnadjustedAlign; | |||
2352 | if (const auto *RT = T->getAs<RecordType>()) { | |||
2353 | const RecordDecl *RD = RT->getDecl(); | |||
2354 | const ASTRecordLayout &Layout = getASTRecordLayout(RD); | |||
2355 | UnadjustedAlign = toBits(Layout.getUnadjustedAlignment()); | |||
2356 | } else if (const auto *ObjCI = T->getAs<ObjCInterfaceType>()) { | |||
2357 | const ASTRecordLayout &Layout = getASTObjCInterfaceLayout(ObjCI->getDecl()); | |||
2358 | UnadjustedAlign = toBits(Layout.getUnadjustedAlignment()); | |||
2359 | } else { | |||
2360 | UnadjustedAlign = getTypeAlign(T->getUnqualifiedDesugaredType()); | |||
2361 | } | |||
2362 | ||||
2363 | MemoizedUnadjustedAlign[T] = UnadjustedAlign; | |||
2364 | return UnadjustedAlign; | |||
2365 | } | |||
2366 | ||||
2367 | unsigned ASTContext::getOpenMPDefaultSimdAlign(QualType T) const { | |||
2368 | unsigned SimdAlign = getTargetInfo().getSimdDefaultAlign(); | |||
2369 | return SimdAlign; | |||
2370 | } | |||
2371 | ||||
2372 | /// toCharUnitsFromBits - Convert a size in bits to a size in characters. | |||
2373 | CharUnits ASTContext::toCharUnitsFromBits(int64_t BitSize) const { | |||
2374 | return CharUnits::fromQuantity(BitSize / getCharWidth()); | |||
2375 | } | |||
2376 | ||||
2377 | /// toBits - Convert a size in characters to a size in characters. | |||
2378 | int64_t ASTContext::toBits(CharUnits CharSize) const { | |||
2379 | return CharSize.getQuantity() * getCharWidth(); | |||
2380 | } | |||
2381 | ||||
2382 | /// getTypeSizeInChars - Return the size of the specified type, in characters. | |||
2383 | /// This method does not work on incomplete types. | |||
2384 | CharUnits ASTContext::getTypeSizeInChars(QualType T) const { | |||
2385 | return getTypeInfoInChars(T).Width; | |||
2386 | } | |||
2387 | CharUnits ASTContext::getTypeSizeInChars(const Type *T) const { | |||
2388 | return getTypeInfoInChars(T).Width; | |||
2389 | } | |||
2390 | ||||
2391 | /// getTypeAlignInChars - Return the ABI-specified alignment of a type, in | |||
2392 | /// characters. This method does not work on incomplete types. | |||
2393 | CharUnits ASTContext::getTypeAlignInChars(QualType T) const { | |||
2394 | return toCharUnitsFromBits(getTypeAlign(T)); | |||
2395 | } | |||
2396 | CharUnits ASTContext::getTypeAlignInChars(const Type *T) const { | |||
2397 | return toCharUnitsFromBits(getTypeAlign(T)); | |||
2398 | } | |||
2399 | ||||
2400 | /// getTypeUnadjustedAlignInChars - Return the ABI-specified alignment of a | |||
2401 | /// type, in characters, before alignment adustments. This method does | |||
2402 | /// not work on incomplete types. | |||
2403 | CharUnits ASTContext::getTypeUnadjustedAlignInChars(QualType T) const { | |||
2404 | return toCharUnitsFromBits(getTypeUnadjustedAlign(T)); | |||
2405 | } | |||
2406 | CharUnits ASTContext::getTypeUnadjustedAlignInChars(const Type *T) const { | |||
2407 | return toCharUnitsFromBits(getTypeUnadjustedAlign(T)); | |||
2408 | } | |||
2409 | ||||
2410 | /// getPreferredTypeAlign - Return the "preferred" alignment of the specified | |||
2411 | /// type for the current target in bits. This can be different than the ABI | |||
2412 | /// alignment in cases where it is beneficial for performance or backwards | |||
2413 | /// compatibility preserving to overalign a data type. (Note: despite the name, | |||
2414 | /// the preferred alignment is ABI-impacting, and not an optimization.) | |||
2415 | unsigned ASTContext::getPreferredTypeAlign(const Type *T) const { | |||
2416 | TypeInfo TI = getTypeInfo(T); | |||
2417 | unsigned ABIAlign = TI.Align; | |||
2418 | ||||
2419 | T = T->getBaseElementTypeUnsafe(); | |||
2420 | ||||
2421 | // The preferred alignment of member pointers is that of a pointer. | |||
2422 | if (T->isMemberPointerType()) | |||
2423 | return getPreferredTypeAlign(getPointerDiffType().getTypePtr()); | |||
2424 | ||||
2425 | if (!Target->allowsLargerPreferedTypeAlignment()) | |||
2426 | return ABIAlign; | |||
2427 | ||||
2428 | if (const auto *RT = T->getAs<RecordType>()) { | |||
2429 | if (TI.AlignIsRequired || RT->getDecl()->isInvalidDecl()) | |||
2430 | return ABIAlign; | |||
2431 | ||||
2432 | unsigned PreferredAlign = static_cast<unsigned>( | |||
2433 | toBits(getASTRecordLayout(RT->getDecl()).PreferredAlignment)); | |||
2434 | assert(PreferredAlign >= ABIAlign &&((PreferredAlign >= ABIAlign && "PreferredAlign should be at least as large as ABIAlign." ) ? static_cast<void> (0) : __assert_fail ("PreferredAlign >= ABIAlign && \"PreferredAlign should be at least as large as ABIAlign.\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 2435, __PRETTY_FUNCTION__)) | |||
2435 | "PreferredAlign should be at least as large as ABIAlign.")((PreferredAlign >= ABIAlign && "PreferredAlign should be at least as large as ABIAlign." ) ? static_cast<void> (0) : __assert_fail ("PreferredAlign >= ABIAlign && \"PreferredAlign should be at least as large as ABIAlign.\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 2435, __PRETTY_FUNCTION__)); | |||
2436 | return PreferredAlign; | |||
2437 | } | |||
2438 | ||||
2439 | // Double (and, for targets supporting AIX `power` alignment, long double) and | |||
2440 | // long long should be naturally aligned (despite requiring less alignment) if | |||
2441 | // possible. | |||
2442 | if (const auto *CT = T->getAs<ComplexType>()) | |||
2443 | T = CT->getElementType().getTypePtr(); | |||
2444 | if (const auto *ET = T->getAs<EnumType>()) | |||
2445 | T = ET->getDecl()->getIntegerType().getTypePtr(); | |||
2446 | if (T->isSpecificBuiltinType(BuiltinType::Double) || | |||
2447 | T->isSpecificBuiltinType(BuiltinType::LongLong) || | |||
2448 | T->isSpecificBuiltinType(BuiltinType::ULongLong) || | |||
2449 | (T->isSpecificBuiltinType(BuiltinType::LongDouble) && | |||
2450 | Target->defaultsToAIXPowerAlignment())) | |||
2451 | // Don't increase the alignment if an alignment attribute was specified on a | |||
2452 | // typedef declaration. | |||
2453 | if (!TI.AlignIsRequired) | |||
2454 | return std::max(ABIAlign, (unsigned)getTypeSize(T)); | |||
2455 | ||||
2456 | return ABIAlign; | |||
2457 | } | |||
2458 | ||||
2459 | /// getTargetDefaultAlignForAttributeAligned - Return the default alignment | |||
2460 | /// for __attribute__((aligned)) on this target, to be used if no alignment | |||
2461 | /// value is specified. | |||
2462 | unsigned ASTContext::getTargetDefaultAlignForAttributeAligned() const { | |||
2463 | return getTargetInfo().getDefaultAlignForAttributeAligned(); | |||
2464 | } | |||
2465 | ||||
2466 | /// getAlignOfGlobalVar - Return the alignment in bits that should be given | |||
2467 | /// to a global variable of the specified type. | |||
2468 | unsigned ASTContext::getAlignOfGlobalVar(QualType T) const { | |||
2469 | uint64_t TypeSize = getTypeSize(T.getTypePtr()); | |||
2470 | return std::max(getPreferredTypeAlign(T), | |||
2471 | getTargetInfo().getMinGlobalAlign(TypeSize)); | |||
2472 | } | |||
2473 | ||||
2474 | /// getAlignOfGlobalVarInChars - Return the alignment in characters that | |||
2475 | /// should be given to a global variable of the specified type. | |||
2476 | CharUnits ASTContext::getAlignOfGlobalVarInChars(QualType T) const { | |||
2477 | return toCharUnitsFromBits(getAlignOfGlobalVar(T)); | |||
2478 | } | |||
2479 | ||||
2480 | CharUnits ASTContext::getOffsetOfBaseWithVBPtr(const CXXRecordDecl *RD) const { | |||
2481 | CharUnits Offset = CharUnits::Zero(); | |||
2482 | const ASTRecordLayout *Layout = &getASTRecordLayout(RD); | |||
2483 | while (const CXXRecordDecl *Base = Layout->getBaseSharingVBPtr()) { | |||
2484 | Offset += Layout->getBaseClassOffset(Base); | |||
2485 | Layout = &getASTRecordLayout(Base); | |||
2486 | } | |||
2487 | return Offset; | |||
2488 | } | |||
2489 | ||||
2490 | CharUnits ASTContext::getMemberPointerPathAdjustment(const APValue &MP) const { | |||
2491 | const ValueDecl *MPD = MP.getMemberPointerDecl(); | |||
2492 | CharUnits ThisAdjustment = CharUnits::Zero(); | |||
2493 | ArrayRef<const CXXRecordDecl*> Path = MP.getMemberPointerPath(); | |||
2494 | bool DerivedMember = MP.isMemberPointerToDerivedMember(); | |||
2495 | const CXXRecordDecl *RD = cast<CXXRecordDecl>(MPD->getDeclContext()); | |||
2496 | for (unsigned I = 0, N = Path.size(); I != N; ++I) { | |||
2497 | const CXXRecordDecl *Base = RD; | |||
2498 | const CXXRecordDecl *Derived = Path[I]; | |||
2499 | if (DerivedMember) | |||
2500 | std::swap(Base, Derived); | |||
2501 | ThisAdjustment += getASTRecordLayout(Derived).getBaseClassOffset(Base); | |||
2502 | RD = Path[I]; | |||
2503 | } | |||
2504 | if (DerivedMember) | |||
2505 | ThisAdjustment = -ThisAdjustment; | |||
2506 | return ThisAdjustment; | |||
2507 | } | |||
2508 | ||||
2509 | /// DeepCollectObjCIvars - | |||
2510 | /// This routine first collects all declared, but not synthesized, ivars in | |||
2511 | /// super class and then collects all ivars, including those synthesized for | |||
2512 | /// current class. This routine is used for implementation of current class | |||
2513 | /// when all ivars, declared and synthesized are known. | |||
2514 | void ASTContext::DeepCollectObjCIvars(const ObjCInterfaceDecl *OI, | |||
2515 | bool leafClass, | |||
2516 | SmallVectorImpl<const ObjCIvarDecl*> &Ivars) const { | |||
2517 | if (const ObjCInterfaceDecl *SuperClass = OI->getSuperClass()) | |||
2518 | DeepCollectObjCIvars(SuperClass, false, Ivars); | |||
2519 | if (!leafClass) { | |||
2520 | for (const auto *I : OI->ivars()) | |||
2521 | Ivars.push_back(I); | |||
2522 | } else { | |||
2523 | auto *IDecl = const_cast<ObjCInterfaceDecl *>(OI); | |||
2524 | for (const ObjCIvarDecl *Iv = IDecl->all_declared_ivar_begin(); Iv; | |||
2525 | Iv= Iv->getNextIvar()) | |||
2526 | Ivars.push_back(Iv); | |||
2527 | } | |||
2528 | } | |||
2529 | ||||
2530 | /// CollectInheritedProtocols - Collect all protocols in current class and | |||
2531 | /// those inherited by it. | |||
2532 | void ASTContext::CollectInheritedProtocols(const Decl *CDecl, | |||
2533 | llvm::SmallPtrSet<ObjCProtocolDecl*, 8> &Protocols) { | |||
2534 | if (const auto *OI = dyn_cast<ObjCInterfaceDecl>(CDecl)) { | |||
2535 | // We can use protocol_iterator here instead of | |||
2536 | // all_referenced_protocol_iterator since we are walking all categories. | |||
2537 | for (auto *Proto : OI->all_referenced_protocols()) { | |||
2538 | CollectInheritedProtocols(Proto, Protocols); | |||
2539 | } | |||
2540 | ||||
2541 | // Categories of this Interface. | |||
2542 | for (const auto *Cat : OI->visible_categories()) | |||
2543 | CollectInheritedProtocols(Cat, Protocols); | |||
2544 | ||||
2545 | if (ObjCInterfaceDecl *SD = OI->getSuperClass()) | |||
2546 | while (SD) { | |||
2547 | CollectInheritedProtocols(SD, Protocols); | |||
2548 | SD = SD->getSuperClass(); | |||
2549 | } | |||
2550 | } else if (const auto *OC = dyn_cast<ObjCCategoryDecl>(CDecl)) { | |||
2551 | for (auto *Proto : OC->protocols()) { | |||
2552 | CollectInheritedProtocols(Proto, Protocols); | |||
2553 | } | |||
2554 | } else if (const auto *OP = dyn_cast<ObjCProtocolDecl>(CDecl)) { | |||
2555 | // Insert the protocol. | |||
2556 | if (!Protocols.insert( | |||
2557 | const_cast<ObjCProtocolDecl *>(OP->getCanonicalDecl())).second) | |||
2558 | return; | |||
2559 | ||||
2560 | for (auto *Proto : OP->protocols()) | |||
2561 | CollectInheritedProtocols(Proto, Protocols); | |||
2562 | } | |||
2563 | } | |||
2564 | ||||
2565 | static bool unionHasUniqueObjectRepresentations(const ASTContext &Context, | |||
2566 | const RecordDecl *RD) { | |||
2567 | assert(RD->isUnion() && "Must be union type")((RD->isUnion() && "Must be union type") ? static_cast <void> (0) : __assert_fail ("RD->isUnion() && \"Must be union type\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 2567, __PRETTY_FUNCTION__)); | |||
2568 | CharUnits UnionSize = Context.getTypeSizeInChars(RD->getTypeForDecl()); | |||
2569 | ||||
2570 | for (const auto *Field : RD->fields()) { | |||
2571 | if (!Context.hasUniqueObjectRepresentations(Field->getType())) | |||
2572 | return false; | |||
2573 | CharUnits FieldSize = Context.getTypeSizeInChars(Field->getType()); | |||
2574 | if (FieldSize != UnionSize) | |||
2575 | return false; | |||
2576 | } | |||
2577 | return !RD->field_empty(); | |||
2578 | } | |||
2579 | ||||
2580 | static bool isStructEmpty(QualType Ty) { | |||
2581 | const RecordDecl *RD = Ty->castAs<RecordType>()->getDecl(); | |||
2582 | ||||
2583 | if (!RD->field_empty()) | |||
2584 | return false; | |||
2585 | ||||
2586 | if (const auto *ClassDecl = dyn_cast<CXXRecordDecl>(RD)) | |||
2587 | return ClassDecl->isEmpty(); | |||
2588 | ||||
2589 | return true; | |||
2590 | } | |||
2591 | ||||
2592 | static llvm::Optional<int64_t> | |||
2593 | structHasUniqueObjectRepresentations(const ASTContext &Context, | |||
2594 | const RecordDecl *RD) { | |||
2595 | assert(!RD->isUnion() && "Must be struct/class type")((!RD->isUnion() && "Must be struct/class type") ? static_cast<void> (0) : __assert_fail ("!RD->isUnion() && \"Must be struct/class type\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 2595, __PRETTY_FUNCTION__)); | |||
2596 | const auto &Layout = Context.getASTRecordLayout(RD); | |||
2597 | ||||
2598 | int64_t CurOffsetInBits = 0; | |||
2599 | if (const auto *ClassDecl = dyn_cast<CXXRecordDecl>(RD)) { | |||
2600 | if (ClassDecl->isDynamicClass()) | |||
2601 | return llvm::None; | |||
2602 | ||||
2603 | SmallVector<std::pair<QualType, int64_t>, 4> Bases; | |||
2604 | for (const auto &Base : ClassDecl->bases()) { | |||
2605 | // Empty types can be inherited from, and non-empty types can potentially | |||
2606 | // have tail padding, so just make sure there isn't an error. | |||
2607 | if (!isStructEmpty(Base.getType())) { | |||
2608 | llvm::Optional<int64_t> Size = structHasUniqueObjectRepresentations( | |||
2609 | Context, Base.getType()->castAs<RecordType>()->getDecl()); | |||
2610 | if (!Size) | |||
2611 | return llvm::None; | |||
2612 | Bases.emplace_back(Base.getType(), Size.getValue()); | |||
2613 | } | |||
2614 | } | |||
2615 | ||||
2616 | llvm::sort(Bases, [&](const std::pair<QualType, int64_t> &L, | |||
2617 | const std::pair<QualType, int64_t> &R) { | |||
2618 | return Layout.getBaseClassOffset(L.first->getAsCXXRecordDecl()) < | |||
2619 | Layout.getBaseClassOffset(R.first->getAsCXXRecordDecl()); | |||
2620 | }); | |||
2621 | ||||
2622 | for (const auto &Base : Bases) { | |||
2623 | int64_t BaseOffset = Context.toBits( | |||
2624 | Layout.getBaseClassOffset(Base.first->getAsCXXRecordDecl())); | |||
2625 | int64_t BaseSize = Base.second; | |||
2626 | if (BaseOffset != CurOffsetInBits) | |||
2627 | return llvm::None; | |||
2628 | CurOffsetInBits = BaseOffset + BaseSize; | |||
2629 | } | |||
2630 | } | |||
2631 | ||||
2632 | for (const auto *Field : RD->fields()) { | |||
2633 | if (!Field->getType()->isReferenceType() && | |||
2634 | !Context.hasUniqueObjectRepresentations(Field->getType())) | |||
2635 | return llvm::None; | |||
2636 | ||||
2637 | int64_t FieldSizeInBits = | |||
2638 | Context.toBits(Context.getTypeSizeInChars(Field->getType())); | |||
2639 | if (Field->isBitField()) { | |||
2640 | int64_t BitfieldSize = Field->getBitWidthValue(Context); | |||
2641 | ||||
2642 | if (BitfieldSize > FieldSizeInBits) | |||
2643 | return llvm::None; | |||
2644 | FieldSizeInBits = BitfieldSize; | |||
2645 | } | |||
2646 | ||||
2647 | int64_t FieldOffsetInBits = Context.getFieldOffset(Field); | |||
2648 | ||||
2649 | if (FieldOffsetInBits != CurOffsetInBits) | |||
2650 | return llvm::None; | |||
2651 | ||||
2652 | CurOffsetInBits = FieldSizeInBits + FieldOffsetInBits; | |||
2653 | } | |||
2654 | ||||
2655 | return CurOffsetInBits; | |||
2656 | } | |||
2657 | ||||
2658 | bool ASTContext::hasUniqueObjectRepresentations(QualType Ty) const { | |||
2659 | // C++17 [meta.unary.prop]: | |||
2660 | // The predicate condition for a template specialization | |||
2661 | // has_unique_object_representations<T> shall be | |||
2662 | // satisfied if and only if: | |||
2663 | // (9.1) - T is trivially copyable, and | |||
2664 | // (9.2) - any two objects of type T with the same value have the same | |||
2665 | // object representation, where two objects | |||
2666 | // of array or non-union class type are considered to have the same value | |||
2667 | // if their respective sequences of | |||
2668 | // direct subobjects have the same values, and two objects of union type | |||
2669 | // are considered to have the same | |||
2670 | // value if they have the same active member and the corresponding members | |||
2671 | // have the same value. | |||
2672 | // The set of scalar types for which this condition holds is | |||
2673 | // implementation-defined. [ Note: If a type has padding | |||
2674 | // bits, the condition does not hold; otherwise, the condition holds true | |||
2675 | // for unsigned integral types. -- end note ] | |||
2676 | assert(!Ty.isNull() && "Null QualType sent to unique object rep check")((!Ty.isNull() && "Null QualType sent to unique object rep check" ) ? static_cast<void> (0) : __assert_fail ("!Ty.isNull() && \"Null QualType sent to unique object rep check\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 2676, __PRETTY_FUNCTION__)); | |||
2677 | ||||
2678 | // Arrays are unique only if their element type is unique. | |||
2679 | if (Ty->isArrayType()) | |||
2680 | return hasUniqueObjectRepresentations(getBaseElementType(Ty)); | |||
2681 | ||||
2682 | // (9.1) - T is trivially copyable... | |||
2683 | if (!Ty.isTriviallyCopyableType(*this)) | |||
2684 | return false; | |||
2685 | ||||
2686 | // All integrals and enums are unique. | |||
2687 | if (Ty->isIntegralOrEnumerationType()) | |||
2688 | return true; | |||
2689 | ||||
2690 | // All other pointers are unique. | |||
2691 | if (Ty->isPointerType()) | |||
2692 | return true; | |||
2693 | ||||
2694 | if (Ty->isMemberPointerType()) { | |||
2695 | const auto *MPT = Ty->getAs<MemberPointerType>(); | |||
2696 | return !ABI->getMemberPointerInfo(MPT).HasPadding; | |||
2697 | } | |||
2698 | ||||
2699 | if (Ty->isRecordType()) { | |||
2700 | const RecordDecl *Record = Ty->castAs<RecordType>()->getDecl(); | |||
2701 | ||||
2702 | if (Record->isInvalidDecl()) | |||
2703 | return false; | |||
2704 | ||||
2705 | if (Record->isUnion()) | |||
2706 | return unionHasUniqueObjectRepresentations(*this, Record); | |||
2707 | ||||
2708 | Optional<int64_t> StructSize = | |||
2709 | structHasUniqueObjectRepresentations(*this, Record); | |||
2710 | ||||
2711 | return StructSize && | |||
2712 | StructSize.getValue() == static_cast<int64_t>(getTypeSize(Ty)); | |||
2713 | } | |||
2714 | ||||
2715 | // FIXME: More cases to handle here (list by rsmith): | |||
2716 | // vectors (careful about, eg, vector of 3 foo) | |||
2717 | // _Complex int and friends | |||
2718 | // _Atomic T | |||
2719 | // Obj-C block pointers | |||
2720 | // Obj-C object pointers | |||
2721 | // and perhaps OpenCL's various builtin types (pipe, sampler_t, event_t, | |||
2722 | // clk_event_t, queue_t, reserve_id_t) | |||
2723 | // There're also Obj-C class types and the Obj-C selector type, but I think it | |||
2724 | // makes sense for those to return false here. | |||
2725 | ||||
2726 | return false; | |||
2727 | } | |||
2728 | ||||
2729 | unsigned ASTContext::CountNonClassIvars(const ObjCInterfaceDecl *OI) const { | |||
2730 | unsigned count = 0; | |||
2731 | // Count ivars declared in class extension. | |||
2732 | for (const auto *Ext : OI->known_extensions()) | |||
2733 | count += Ext->ivar_size(); | |||
2734 | ||||
2735 | // Count ivar defined in this class's implementation. This | |||
2736 | // includes synthesized ivars. | |||
2737 | if (ObjCImplementationDecl *ImplDecl = OI->getImplementation()) | |||
2738 | count += ImplDecl->ivar_size(); | |||
2739 | ||||
2740 | return count; | |||
2741 | } | |||
2742 | ||||
2743 | bool ASTContext::isSentinelNullExpr(const Expr *E) { | |||
2744 | if (!E) | |||
2745 | return false; | |||
2746 | ||||
2747 | // nullptr_t is always treated as null. | |||
2748 | if (E->getType()->isNullPtrType()) return true; | |||
2749 | ||||
2750 | if (E->getType()->isAnyPointerType() && | |||
2751 | E->IgnoreParenCasts()->isNullPointerConstant(*this, | |||
2752 | Expr::NPC_ValueDependentIsNull)) | |||
2753 | return true; | |||
2754 | ||||
2755 | // Unfortunately, __null has type 'int'. | |||
2756 | if (isa<GNUNullExpr>(E)) return true; | |||
2757 | ||||
2758 | return false; | |||
2759 | } | |||
2760 | ||||
2761 | /// Get the implementation of ObjCInterfaceDecl, or nullptr if none | |||
2762 | /// exists. | |||
2763 | ObjCImplementationDecl *ASTContext::getObjCImplementation(ObjCInterfaceDecl *D) { | |||
2764 | llvm::DenseMap<ObjCContainerDecl*, ObjCImplDecl*>::iterator | |||
2765 | I = ObjCImpls.find(D); | |||
2766 | if (I != ObjCImpls.end()) | |||
2767 | return cast<ObjCImplementationDecl>(I->second); | |||
2768 | return nullptr; | |||
2769 | } | |||
2770 | ||||
2771 | /// Get the implementation of ObjCCategoryDecl, or nullptr if none | |||
2772 | /// exists. | |||
2773 | ObjCCategoryImplDecl *ASTContext::getObjCImplementation(ObjCCategoryDecl *D) { | |||
2774 | llvm::DenseMap<ObjCContainerDecl*, ObjCImplDecl*>::iterator | |||
2775 | I = ObjCImpls.find(D); | |||
2776 | if (I != ObjCImpls.end()) | |||
2777 | return cast<ObjCCategoryImplDecl>(I->second); | |||
2778 | return nullptr; | |||
2779 | } | |||
2780 | ||||
2781 | /// Set the implementation of ObjCInterfaceDecl. | |||
2782 | void ASTContext::setObjCImplementation(ObjCInterfaceDecl *IFaceD, | |||
2783 | ObjCImplementationDecl *ImplD) { | |||
2784 | assert(IFaceD && ImplD && "Passed null params")((IFaceD && ImplD && "Passed null params") ? static_cast <void> (0) : __assert_fail ("IFaceD && ImplD && \"Passed null params\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 2784, __PRETTY_FUNCTION__)); | |||
2785 | ObjCImpls[IFaceD] = ImplD; | |||
2786 | } | |||
2787 | ||||
2788 | /// Set the implementation of ObjCCategoryDecl. | |||
2789 | void ASTContext::setObjCImplementation(ObjCCategoryDecl *CatD, | |||
2790 | ObjCCategoryImplDecl *ImplD) { | |||
2791 | assert(CatD && ImplD && "Passed null params")((CatD && ImplD && "Passed null params") ? static_cast <void> (0) : __assert_fail ("CatD && ImplD && \"Passed null params\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 2791, __PRETTY_FUNCTION__)); | |||
2792 | ObjCImpls[CatD] = ImplD; | |||
2793 | } | |||
2794 | ||||
2795 | const ObjCMethodDecl * | |||
2796 | ASTContext::getObjCMethodRedeclaration(const ObjCMethodDecl *MD) const { | |||
2797 | return ObjCMethodRedecls.lookup(MD); | |||
2798 | } | |||
2799 | ||||
2800 | void ASTContext::setObjCMethodRedeclaration(const ObjCMethodDecl *MD, | |||
2801 | const ObjCMethodDecl *Redecl) { | |||
2802 | assert(!getObjCMethodRedeclaration(MD) && "MD already has a redeclaration")((!getObjCMethodRedeclaration(MD) && "MD already has a redeclaration" ) ? static_cast<void> (0) : __assert_fail ("!getObjCMethodRedeclaration(MD) && \"MD already has a redeclaration\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 2802, __PRETTY_FUNCTION__)); | |||
2803 | ObjCMethodRedecls[MD] = Redecl; | |||
2804 | } | |||
2805 | ||||
2806 | const ObjCInterfaceDecl *ASTContext::getObjContainingInterface( | |||
2807 | const NamedDecl *ND) const { | |||
2808 | if (const auto *ID = dyn_cast<ObjCInterfaceDecl>(ND->getDeclContext())) | |||
2809 | return ID; | |||
2810 | if (const auto *CD = dyn_cast<ObjCCategoryDecl>(ND->getDeclContext())) | |||
2811 | return CD->getClassInterface(); | |||
2812 | if (const auto *IMD = dyn_cast<ObjCImplDecl>(ND->getDeclContext())) | |||
2813 | return IMD->getClassInterface(); | |||
2814 | ||||
2815 | return nullptr; | |||
2816 | } | |||
2817 | ||||
2818 | /// Get the copy initialization expression of VarDecl, or nullptr if | |||
2819 | /// none exists. | |||
2820 | BlockVarCopyInit ASTContext::getBlockVarCopyInit(const VarDecl *VD) const { | |||
2821 | assert(VD && "Passed null params")((VD && "Passed null params") ? static_cast<void> (0) : __assert_fail ("VD && \"Passed null params\"", "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 2821, __PRETTY_FUNCTION__)); | |||
2822 | assert(VD->hasAttr<BlocksAttr>() &&((VD->hasAttr<BlocksAttr>() && "getBlockVarCopyInits - not __block var" ) ? static_cast<void> (0) : __assert_fail ("VD->hasAttr<BlocksAttr>() && \"getBlockVarCopyInits - not __block var\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 2823, __PRETTY_FUNCTION__)) | |||
2823 | "getBlockVarCopyInits - not __block var")((VD->hasAttr<BlocksAttr>() && "getBlockVarCopyInits - not __block var" ) ? static_cast<void> (0) : __assert_fail ("VD->hasAttr<BlocksAttr>() && \"getBlockVarCopyInits - not __block var\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 2823, __PRETTY_FUNCTION__)); | |||
2824 | auto I = BlockVarCopyInits.find(VD); | |||
2825 | if (I != BlockVarCopyInits.end()) | |||
2826 | return I->second; | |||
2827 | return {nullptr, false}; | |||
2828 | } | |||
2829 | ||||
2830 | /// Set the copy initialization expression of a block var decl. | |||
2831 | void ASTContext::setBlockVarCopyInit(const VarDecl*VD, Expr *CopyExpr, | |||
2832 | bool CanThrow) { | |||
2833 | assert(VD && CopyExpr && "Passed null params")((VD && CopyExpr && "Passed null params") ? static_cast <void> (0) : __assert_fail ("VD && CopyExpr && \"Passed null params\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 2833, __PRETTY_FUNCTION__)); | |||
2834 | assert(VD->hasAttr<BlocksAttr>() &&((VD->hasAttr<BlocksAttr>() && "setBlockVarCopyInits - not __block var" ) ? static_cast<void> (0) : __assert_fail ("VD->hasAttr<BlocksAttr>() && \"setBlockVarCopyInits - not __block var\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 2835, __PRETTY_FUNCTION__)) | |||
2835 | "setBlockVarCopyInits - not __block var")((VD->hasAttr<BlocksAttr>() && "setBlockVarCopyInits - not __block var" ) ? static_cast<void> (0) : __assert_fail ("VD->hasAttr<BlocksAttr>() && \"setBlockVarCopyInits - not __block var\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 2835, __PRETTY_FUNCTION__)); | |||
2836 | BlockVarCopyInits[VD].setExprAndFlag(CopyExpr, CanThrow); | |||
2837 | } | |||
2838 | ||||
2839 | TypeSourceInfo *ASTContext::CreateTypeSourceInfo(QualType T, | |||
2840 | unsigned DataSize) const { | |||
2841 | if (!DataSize) | |||
2842 | DataSize = TypeLoc::getFullDataSizeForType(T); | |||
2843 | else | |||
2844 | assert(DataSize == TypeLoc::getFullDataSizeForType(T) &&((DataSize == TypeLoc::getFullDataSizeForType(T) && "incorrect data size provided to CreateTypeSourceInfo!" ) ? static_cast<void> (0) : __assert_fail ("DataSize == TypeLoc::getFullDataSizeForType(T) && \"incorrect data size provided to CreateTypeSourceInfo!\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 2845, __PRETTY_FUNCTION__)) | |||
2845 | "incorrect data size provided to CreateTypeSourceInfo!")((DataSize == TypeLoc::getFullDataSizeForType(T) && "incorrect data size provided to CreateTypeSourceInfo!" ) ? static_cast<void> (0) : __assert_fail ("DataSize == TypeLoc::getFullDataSizeForType(T) && \"incorrect data size provided to CreateTypeSourceInfo!\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 2845, __PRETTY_FUNCTION__)); | |||
2846 | ||||
2847 | auto *TInfo = | |||
2848 | (TypeSourceInfo*)BumpAlloc.Allocate(sizeof(TypeSourceInfo) + DataSize, 8); | |||
2849 | new (TInfo) TypeSourceInfo(T); | |||
2850 | return TInfo; | |||
2851 | } | |||
2852 | ||||
2853 | TypeSourceInfo *ASTContext::getTrivialTypeSourceInfo(QualType T, | |||
2854 | SourceLocation L) const { | |||
2855 | TypeSourceInfo *DI = CreateTypeSourceInfo(T); | |||
2856 | DI->getTypeLoc().initialize(const_cast<ASTContext &>(*this), L); | |||
2857 | return DI; | |||
2858 | } | |||
2859 | ||||
2860 | const ASTRecordLayout & | |||
2861 | ASTContext::getASTObjCInterfaceLayout(const ObjCInterfaceDecl *D) const { | |||
2862 | return getObjCLayout(D, nullptr); | |||
2863 | } | |||
2864 | ||||
2865 | const ASTRecordLayout & | |||
2866 | ASTContext::getASTObjCImplementationLayout( | |||
2867 | const ObjCImplementationDecl *D) const { | |||
2868 | return getObjCLayout(D->getClassInterface(), D); | |||
2869 | } | |||
2870 | ||||
2871 | //===----------------------------------------------------------------------===// | |||
2872 | // Type creation/memoization methods | |||
2873 | //===----------------------------------------------------------------------===// | |||
2874 | ||||
2875 | QualType | |||
2876 | ASTContext::getExtQualType(const Type *baseType, Qualifiers quals) const { | |||
2877 | unsigned fastQuals = quals.getFastQualifiers(); | |||
2878 | quals.removeFastQualifiers(); | |||
2879 | ||||
2880 | // Check if we've already instantiated this type. | |||
2881 | llvm::FoldingSetNodeID ID; | |||
2882 | ExtQuals::Profile(ID, baseType, quals); | |||
2883 | void *insertPos = nullptr; | |||
2884 | if (ExtQuals *eq = ExtQualNodes.FindNodeOrInsertPos(ID, insertPos)) { | |||
2885 | assert(eq->getQualifiers() == quals)((eq->getQualifiers() == quals) ? static_cast<void> ( 0) : __assert_fail ("eq->getQualifiers() == quals", "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 2885, __PRETTY_FUNCTION__)); | |||
2886 | return QualType(eq, fastQuals); | |||
2887 | } | |||
2888 | ||||
2889 | // If the base type is not canonical, make the appropriate canonical type. | |||
2890 | QualType canon; | |||
2891 | if (!baseType->isCanonicalUnqualified()) { | |||
2892 | SplitQualType canonSplit = baseType->getCanonicalTypeInternal().split(); | |||
2893 | canonSplit.Quals.addConsistentQualifiers(quals); | |||
2894 | canon = getExtQualType(canonSplit.Ty, canonSplit.Quals); | |||
2895 | ||||
2896 | // Re-find the insert position. | |||
2897 | (void) ExtQualNodes.FindNodeOrInsertPos(ID, insertPos); | |||
2898 | } | |||
2899 | ||||
2900 | auto *eq = new (*this, TypeAlignment) ExtQuals(baseType, canon, quals); | |||
2901 | ExtQualNodes.InsertNode(eq, insertPos); | |||
2902 | return QualType(eq, fastQuals); | |||
2903 | } | |||
2904 | ||||
2905 | QualType ASTContext::getAddrSpaceQualType(QualType T, | |||
2906 | LangAS AddressSpace) const { | |||
2907 | QualType CanT = getCanonicalType(T); | |||
2908 | if (CanT.getAddressSpace() == AddressSpace) | |||
2909 | return T; | |||
2910 | ||||
2911 | // If we are composing extended qualifiers together, merge together | |||
2912 | // into one ExtQuals node. | |||
2913 | QualifierCollector Quals; | |||
2914 | const Type *TypeNode = Quals.strip(T); | |||
2915 | ||||
2916 | // If this type already has an address space specified, it cannot get | |||
2917 | // another one. | |||
2918 | assert(!Quals.hasAddressSpace() &&((!Quals.hasAddressSpace() && "Type cannot be in multiple addr spaces!" ) ? static_cast<void> (0) : __assert_fail ("!Quals.hasAddressSpace() && \"Type cannot be in multiple addr spaces!\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 2919, __PRETTY_FUNCTION__)) | |||
2919 | "Type cannot be in multiple addr spaces!")((!Quals.hasAddressSpace() && "Type cannot be in multiple addr spaces!" ) ? static_cast<void> (0) : __assert_fail ("!Quals.hasAddressSpace() && \"Type cannot be in multiple addr spaces!\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 2919, __PRETTY_FUNCTION__)); | |||
2920 | Quals.addAddressSpace(AddressSpace); | |||
2921 | ||||
2922 | return getExtQualType(TypeNode, Quals); | |||
2923 | } | |||
2924 | ||||
2925 | QualType ASTContext::removeAddrSpaceQualType(QualType T) const { | |||
2926 | // If the type is not qualified with an address space, just return it | |||
2927 | // immediately. | |||
2928 | if (!T.hasAddressSpace()) | |||
2929 | return T; | |||
2930 | ||||
2931 | // If we are composing extended qualifiers together, merge together | |||
2932 | // into one ExtQuals node. | |||
2933 | QualifierCollector Quals; | |||
2934 | const Type *TypeNode; | |||
2935 | ||||
2936 | while (T.hasAddressSpace()) { | |||
2937 | TypeNode = Quals.strip(T); | |||
2938 | ||||
2939 | // If the type no longer has an address space after stripping qualifiers, | |||
2940 | // jump out. | |||
2941 | if (!QualType(TypeNode, 0).hasAddressSpace()) | |||
2942 | break; | |||
2943 | ||||
2944 | // There might be sugar in the way. Strip it and try again. | |||
2945 | T = T.getSingleStepDesugaredType(*this); | |||
2946 | } | |||
2947 | ||||
2948 | Quals.removeAddressSpace(); | |||
2949 | ||||
2950 | // Removal of the address space can mean there are no longer any | |||
2951 | // non-fast qualifiers, so creating an ExtQualType isn't possible (asserts) | |||
2952 | // or required. | |||
2953 | if (Quals.hasNonFastQualifiers()) | |||
2954 | return getExtQualType(TypeNode, Quals); | |||
2955 | else | |||
2956 | return QualType(TypeNode, Quals.getFastQualifiers()); | |||
| ||||
2957 | } | |||
2958 | ||||
2959 | QualType ASTContext::getObjCGCQualType(QualType T, | |||
2960 | Qualifiers::GC GCAttr) const { | |||
2961 | QualType CanT = getCanonicalType(T); | |||
2962 | if (CanT.getObjCGCAttr() == GCAttr) | |||
2963 | return T; | |||
2964 | ||||
2965 | if (const auto *ptr = T->getAs<PointerType>()) { | |||
2966 | QualType Pointee = ptr->getPointeeType(); | |||
2967 | if (Pointee->isAnyPointerType()) { | |||
2968 | QualType ResultType = getObjCGCQualType(Pointee, GCAttr); | |||
2969 | return getPointerType(ResultType); | |||
2970 | } | |||
2971 | } | |||
2972 | ||||
2973 | // If we are composing extended qualifiers together, merge together | |||
2974 | // into one ExtQuals node. | |||
2975 | QualifierCollector Quals; | |||
2976 | const Type *TypeNode = Quals.strip(T); | |||
2977 | ||||
2978 | // If this type already has an ObjCGC specified, it cannot get | |||
2979 | // another one. | |||
2980 | assert(!Quals.hasObjCGCAttr() &&((!Quals.hasObjCGCAttr() && "Type cannot have multiple ObjCGCs!" ) ? static_cast<void> (0) : __assert_fail ("!Quals.hasObjCGCAttr() && \"Type cannot have multiple ObjCGCs!\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 2981, __PRETTY_FUNCTION__)) | |||
2981 | "Type cannot have multiple ObjCGCs!")((!Quals.hasObjCGCAttr() && "Type cannot have multiple ObjCGCs!" ) ? static_cast<void> (0) : __assert_fail ("!Quals.hasObjCGCAttr() && \"Type cannot have multiple ObjCGCs!\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 2981, __PRETTY_FUNCTION__)); | |||
2982 | Quals.addObjCGCAttr(GCAttr); | |||
2983 | ||||
2984 | return getExtQualType(TypeNode, Quals); | |||
2985 | } | |||
2986 | ||||
2987 | QualType ASTContext::removePtrSizeAddrSpace(QualType T) const { | |||
2988 | if (const PointerType *Ptr = T->getAs<PointerType>()) { | |||
2989 | QualType Pointee = Ptr->getPointeeType(); | |||
2990 | if (isPtrSizeAddressSpace(Pointee.getAddressSpace())) { | |||
2991 | return getPointerType(removeAddrSpaceQualType(Pointee)); | |||
2992 | } | |||
2993 | } | |||
2994 | return T; | |||
2995 | } | |||
2996 | ||||
2997 | const FunctionType *ASTContext::adjustFunctionType(const FunctionType *T, | |||
2998 | FunctionType::ExtInfo Info) { | |||
2999 | if (T->getExtInfo() == Info) | |||
3000 | return T; | |||
3001 | ||||
3002 | QualType Result; | |||
3003 | if (const auto *FNPT = dyn_cast<FunctionNoProtoType>(T)) { | |||
3004 | Result = getFunctionNoProtoType(FNPT->getReturnType(), Info); | |||
3005 | } else { | |||
3006 | const auto *FPT = cast<FunctionProtoType>(T); | |||
3007 | FunctionProtoType::ExtProtoInfo EPI = FPT->getExtProtoInfo(); | |||
3008 | EPI.ExtInfo = Info; | |||
3009 | Result = getFunctionType(FPT->getReturnType(), FPT->getParamTypes(), EPI); | |||
3010 | } | |||
3011 | ||||
3012 | return cast<FunctionType>(Result.getTypePtr()); | |||
3013 | } | |||
3014 | ||||
3015 | void ASTContext::adjustDeducedFunctionResultType(FunctionDecl *FD, | |||
3016 | QualType ResultType) { | |||
3017 | FD = FD->getMostRecentDecl(); | |||
3018 | while (true) { | |||
3019 | const auto *FPT = FD->getType()->castAs<FunctionProtoType>(); | |||
3020 | FunctionProtoType::ExtProtoInfo EPI = FPT->getExtProtoInfo(); | |||
3021 | FD->setType(getFunctionType(ResultType, FPT->getParamTypes(), EPI)); | |||
3022 | if (FunctionDecl *Next = FD->getPreviousDecl()) | |||
3023 | FD = Next; | |||
3024 | else | |||
3025 | break; | |||
3026 | } | |||
3027 | if (ASTMutationListener *L = getASTMutationListener()) | |||
3028 | L->DeducedReturnType(FD, ResultType); | |||
3029 | } | |||
3030 | ||||
3031 | /// Get a function type and produce the equivalent function type with the | |||
3032 | /// specified exception specification. Type sugar that can be present on a | |||
3033 | /// declaration of a function with an exception specification is permitted | |||
3034 | /// and preserved. Other type sugar (for instance, typedefs) is not. | |||
3035 | QualType ASTContext::getFunctionTypeWithExceptionSpec( | |||
3036 | QualType Orig, const FunctionProtoType::ExceptionSpecInfo &ESI) { | |||
3037 | // Might have some parens. | |||
3038 | if (const auto *PT = dyn_cast<ParenType>(Orig)) | |||
3039 | return getParenType( | |||
3040 | getFunctionTypeWithExceptionSpec(PT->getInnerType(), ESI)); | |||
3041 | ||||
3042 | // Might be wrapped in a macro qualified type. | |||
3043 | if (const auto *MQT = dyn_cast<MacroQualifiedType>(Orig)) | |||
3044 | return getMacroQualifiedType( | |||
3045 | getFunctionTypeWithExceptionSpec(MQT->getUnderlyingType(), ESI), | |||
3046 | MQT->getMacroIdentifier()); | |||
3047 | ||||
3048 | // Might have a calling-convention attribute. | |||
3049 | if (const auto *AT = dyn_cast<AttributedType>(Orig)) | |||
3050 | return getAttributedType( | |||
3051 | AT->getAttrKind(), | |||
3052 | getFunctionTypeWithExceptionSpec(AT->getModifiedType(), ESI), | |||
3053 | getFunctionTypeWithExceptionSpec(AT->getEquivalentType(), ESI)); | |||
3054 | ||||
3055 | // Anything else must be a function type. Rebuild it with the new exception | |||
3056 | // specification. | |||
3057 | const auto *Proto = Orig->castAs<FunctionProtoType>(); | |||
3058 | return getFunctionType( | |||
3059 | Proto->getReturnType(), Proto->getParamTypes(), | |||
3060 | Proto->getExtProtoInfo().withExceptionSpec(ESI)); | |||
3061 | } | |||
3062 | ||||
3063 | bool ASTContext::hasSameFunctionTypeIgnoringExceptionSpec(QualType T, | |||
3064 | QualType U) { | |||
3065 | return hasSameType(T, U) || | |||
3066 | (getLangOpts().CPlusPlus17 && | |||
3067 | hasSameType(getFunctionTypeWithExceptionSpec(T, EST_None), | |||
3068 | getFunctionTypeWithExceptionSpec(U, EST_None))); | |||
3069 | } | |||
3070 | ||||
3071 | QualType ASTContext::getFunctionTypeWithoutPtrSizes(QualType T) { | |||
3072 | if (const auto *Proto = T->getAs<FunctionProtoType>()) { | |||
3073 | QualType RetTy = removePtrSizeAddrSpace(Proto->getReturnType()); | |||
3074 | SmallVector<QualType, 16> Args(Proto->param_types()); | |||
3075 | for (unsigned i = 0, n = Args.size(); i != n; ++i) | |||
3076 | Args[i] = removePtrSizeAddrSpace(Args[i]); | |||
3077 | return getFunctionType(RetTy, Args, Proto->getExtProtoInfo()); | |||
3078 | } | |||
3079 | ||||
3080 | if (const FunctionNoProtoType *Proto = T->getAs<FunctionNoProtoType>()) { | |||
3081 | QualType RetTy = removePtrSizeAddrSpace(Proto->getReturnType()); | |||
3082 | return getFunctionNoProtoType(RetTy, Proto->getExtInfo()); | |||
3083 | } | |||
3084 | ||||
3085 | return T; | |||
3086 | } | |||
3087 | ||||
3088 | bool ASTContext::hasSameFunctionTypeIgnoringPtrSizes(QualType T, QualType U) { | |||
3089 | return hasSameType(T, U) || | |||
| ||||
3090 | hasSameType(getFunctionTypeWithoutPtrSizes(T), | |||
3091 | getFunctionTypeWithoutPtrSizes(U)); | |||
3092 | } | |||
3093 | ||||
3094 | void ASTContext::adjustExceptionSpec( | |||
3095 | FunctionDecl *FD, const FunctionProtoType::ExceptionSpecInfo &ESI, | |||
3096 | bool AsWritten) { | |||
3097 | // Update the type. | |||
3098 | QualType Updated = | |||
3099 | getFunctionTypeWithExceptionSpec(FD->getType(), ESI); | |||
3100 | FD->setType(Updated); | |||
3101 | ||||
3102 | if (!AsWritten) | |||
3103 | return; | |||
3104 | ||||
3105 | // Update the type in the type source information too. | |||
3106 | if (TypeSourceInfo *TSInfo = FD->getTypeSourceInfo()) { | |||
3107 | // If the type and the type-as-written differ, we may need to update | |||
3108 | // the type-as-written too. | |||
3109 | if (TSInfo->getType() != FD->getType()) | |||
3110 | Updated = getFunctionTypeWithExceptionSpec(TSInfo->getType(), ESI); | |||
3111 | ||||
3112 | // FIXME: When we get proper type location information for exceptions, | |||
3113 | // we'll also have to rebuild the TypeSourceInfo. For now, we just patch | |||
3114 | // up the TypeSourceInfo; | |||
3115 | assert(TypeLoc::getFullDataSizeForType(Updated) ==((TypeLoc::getFullDataSizeForType(Updated) == TypeLoc::getFullDataSizeForType (TSInfo->getType()) && "TypeLoc size mismatch from updating exception specification" ) ? static_cast<void> (0) : __assert_fail ("TypeLoc::getFullDataSizeForType(Updated) == TypeLoc::getFullDataSizeForType(TSInfo->getType()) && \"TypeLoc size mismatch from updating exception specification\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 3117, __PRETTY_FUNCTION__)) | |||
3116 | TypeLoc::getFullDataSizeForType(TSInfo->getType()) &&((TypeLoc::getFullDataSizeForType(Updated) == TypeLoc::getFullDataSizeForType (TSInfo->getType()) && "TypeLoc size mismatch from updating exception specification" ) ? static_cast<void> (0) : __assert_fail ("TypeLoc::getFullDataSizeForType(Updated) == TypeLoc::getFullDataSizeForType(TSInfo->getType()) && \"TypeLoc size mismatch from updating exception specification\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 3117, __PRETTY_FUNCTION__)) | |||
3117 | "TypeLoc size mismatch from updating exception specification")((TypeLoc::getFullDataSizeForType(Updated) == TypeLoc::getFullDataSizeForType (TSInfo->getType()) && "TypeLoc size mismatch from updating exception specification" ) ? static_cast<void> (0) : __assert_fail ("TypeLoc::getFullDataSizeForType(Updated) == TypeLoc::getFullDataSizeForType(TSInfo->getType()) && \"TypeLoc size mismatch from updating exception specification\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 3117, __PRETTY_FUNCTION__)); | |||
3118 | TSInfo->overrideType(Updated); | |||
3119 | } | |||
3120 | } | |||
3121 | ||||
3122 | /// getComplexType - Return the uniqued reference to the type for a complex | |||
3123 | /// number with the specified element type. | |||
3124 | QualType ASTContext::getComplexType(QualType T) const { | |||
3125 | // Unique pointers, to guarantee there is only one pointer of a particular | |||
3126 | // structure. | |||
3127 | llvm::FoldingSetNodeID ID; | |||
3128 | ComplexType::Profile(ID, T); | |||
3129 | ||||
3130 | void *InsertPos = nullptr; | |||
3131 | if (ComplexType *CT = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
3132 | return QualType(CT, 0); | |||
3133 | ||||
3134 | // If the pointee type isn't canonical, this won't be a canonical type either, | |||
3135 | // so fill in the canonical type field. | |||
3136 | QualType Canonical; | |||
3137 | if (!T.isCanonical()) { | |||
3138 | Canonical = getComplexType(getCanonicalType(T)); | |||
3139 | ||||
3140 | // Get the new insert position for the node we care about. | |||
3141 | ComplexType *NewIP = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
3142 | assert(!NewIP && "Shouldn't be in the map!")((!NewIP && "Shouldn't be in the map!") ? static_cast <void> (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 3142, __PRETTY_FUNCTION__)); (void)NewIP; | |||
3143 | } | |||
3144 | auto *New = new (*this, TypeAlignment) ComplexType(T, Canonical); | |||
3145 | Types.push_back(New); | |||
3146 | ComplexTypes.InsertNode(New, InsertPos); | |||
3147 | return QualType(New, 0); | |||
3148 | } | |||
3149 | ||||
3150 | /// getPointerType - Return the uniqued reference to the type for a pointer to | |||
3151 | /// the specified type. | |||
3152 | QualType ASTContext::getPointerType(QualType T) const { | |||
3153 | // Unique pointers, to guarantee there is only one pointer of a particular | |||
3154 | // structure. | |||
3155 | llvm::FoldingSetNodeID ID; | |||
3156 | PointerType::Profile(ID, T); | |||
3157 | ||||
3158 | void *InsertPos = nullptr; | |||
3159 | if (PointerType *PT = PointerTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
3160 | return QualType(PT, 0); | |||
3161 | ||||
3162 | // If the pointee type isn't canonical, this won't be a canonical type either, | |||
3163 | // so fill in the canonical type field. | |||
3164 | QualType Canonical; | |||
3165 | if (!T.isCanonical()) { | |||
3166 | Canonical = getPointerType(getCanonicalType(T)); | |||
3167 | ||||
3168 | // Get the new insert position for the node we care about. | |||
3169 | PointerType *NewIP = PointerTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
3170 | assert(!NewIP && "Shouldn't be in the map!")((!NewIP && "Shouldn't be in the map!") ? static_cast <void> (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 3170, __PRETTY_FUNCTION__)); (void)NewIP; | |||
3171 | } | |||
3172 | auto *New = new (*this, TypeAlignment) PointerType(T, Canonical); | |||
3173 | Types.push_back(New); | |||
3174 | PointerTypes.InsertNode(New, InsertPos); | |||
3175 | return QualType(New, 0); | |||
3176 | } | |||
3177 | ||||
3178 | QualType ASTContext::getAdjustedType(QualType Orig, QualType New) const { | |||
3179 | llvm::FoldingSetNodeID ID; | |||
3180 | AdjustedType::Profile(ID, Orig, New); | |||
3181 | void *InsertPos = nullptr; | |||
3182 | AdjustedType *AT = AdjustedTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
3183 | if (AT) | |||
3184 | return QualType(AT, 0); | |||
3185 | ||||
3186 | QualType Canonical = getCanonicalType(New); | |||
3187 | ||||
3188 | // Get the new insert position for the node we care about. | |||
3189 | AT = AdjustedTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
3190 | assert(!AT && "Shouldn't be in the map!")((!AT && "Shouldn't be in the map!") ? static_cast< void> (0) : __assert_fail ("!AT && \"Shouldn't be in the map!\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 3190, __PRETTY_FUNCTION__)); | |||
3191 | ||||
3192 | AT = new (*this, TypeAlignment) | |||
3193 | AdjustedType(Type::Adjusted, Orig, New, Canonical); | |||
3194 | Types.push_back(AT); | |||
3195 | AdjustedTypes.InsertNode(AT, InsertPos); | |||
3196 | return QualType(AT, 0); | |||
3197 | } | |||
3198 | ||||
3199 | QualType ASTContext::getDecayedType(QualType T) const { | |||
3200 | assert((T->isArrayType() || T->isFunctionType()) && "T does not decay")(((T->isArrayType() || T->isFunctionType()) && "T does not decay" ) ? static_cast<void> (0) : __assert_fail ("(T->isArrayType() || T->isFunctionType()) && \"T does not decay\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 3200, __PRETTY_FUNCTION__)); | |||
3201 | ||||
3202 | QualType Decayed; | |||
3203 | ||||
3204 | // C99 6.7.5.3p7: | |||
3205 | // A declaration of a parameter as "array of type" shall be | |||
3206 | // adjusted to "qualified pointer to type", where the type | |||
3207 | // qualifiers (if any) are those specified within the [ and ] of | |||
3208 | // the array type derivation. | |||
3209 | if (T->isArrayType()) | |||
3210 | Decayed = getArrayDecayedType(T); | |||
3211 | ||||
3212 | // C99 6.7.5.3p8: | |||
3213 | // A declaration of a parameter as "function returning type" | |||
3214 | // shall be adjusted to "pointer to function returning type", as | |||
3215 | // in 6.3.2.1. | |||
3216 | if (T->isFunctionType()) | |||
3217 | Decayed = getPointerType(T); | |||
3218 | ||||
3219 | llvm::FoldingSetNodeID ID; | |||
3220 | AdjustedType::Profile(ID, T, Decayed); | |||
3221 | void *InsertPos = nullptr; | |||
3222 | AdjustedType *AT = AdjustedTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
3223 | if (AT) | |||
3224 | return QualType(AT, 0); | |||
3225 | ||||
3226 | QualType Canonical = getCanonicalType(Decayed); | |||
3227 | ||||
3228 | // Get the new insert position for the node we care about. | |||
3229 | AT = AdjustedTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
3230 | assert(!AT && "Shouldn't be in the map!")((!AT && "Shouldn't be in the map!") ? static_cast< void> (0) : __assert_fail ("!AT && \"Shouldn't be in the map!\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 3230, __PRETTY_FUNCTION__)); | |||
3231 | ||||
3232 | AT = new (*this, TypeAlignment) DecayedType(T, Decayed, Canonical); | |||
3233 | Types.push_back(AT); | |||
3234 | AdjustedTypes.InsertNode(AT, InsertPos); | |||
3235 | return QualType(AT, 0); | |||
3236 | } | |||
3237 | ||||
3238 | /// getBlockPointerType - Return the uniqued reference to the type for | |||
3239 | /// a pointer to the specified block. | |||
3240 | QualType ASTContext::getBlockPointerType(QualType T) const { | |||
3241 | assert(T->isFunctionType() && "block of function types only")((T->isFunctionType() && "block of function types only" ) ? static_cast<void> (0) : __assert_fail ("T->isFunctionType() && \"block of function types only\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 3241, __PRETTY_FUNCTION__)); | |||
3242 | // Unique pointers, to guarantee there is only one block of a particular | |||
3243 | // structure. | |||
3244 | llvm::FoldingSetNodeID ID; | |||
3245 | BlockPointerType::Profile(ID, T); | |||
3246 | ||||
3247 | void *InsertPos = nullptr; | |||
3248 | if (BlockPointerType *PT = | |||
3249 | BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
3250 | return QualType(PT, 0); | |||
3251 | ||||
3252 | // If the block pointee type isn't canonical, this won't be a canonical | |||
3253 | // type either so fill in the canonical type field. | |||
3254 | QualType Canonical; | |||
3255 | if (!T.isCanonical()) { | |||
3256 | Canonical = getBlockPointerType(getCanonicalType(T)); | |||
3257 | ||||
3258 | // Get the new insert position for the node we care about. | |||
3259 | BlockPointerType *NewIP = | |||
3260 | BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
3261 | assert(!NewIP && "Shouldn't be in the map!")((!NewIP && "Shouldn't be in the map!") ? static_cast <void> (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 3261, __PRETTY_FUNCTION__)); (void)NewIP; | |||
3262 | } | |||
3263 | auto *New = new (*this, TypeAlignment) BlockPointerType(T, Canonical); | |||
3264 | Types.push_back(New); | |||
3265 | BlockPointerTypes.InsertNode(New, InsertPos); | |||
3266 | return QualType(New, 0); | |||
3267 | } | |||
3268 | ||||
3269 | /// getLValueReferenceType - Return the uniqued reference to the type for an | |||
3270 | /// lvalue reference to the specified type. | |||
3271 | QualType | |||
3272 | ASTContext::getLValueReferenceType(QualType T, bool SpelledAsLValue) const { | |||
3273 | assert(getCanonicalType(T) != OverloadTy &&((getCanonicalType(T) != OverloadTy && "Unresolved overloaded function type" ) ? static_cast<void> (0) : __assert_fail ("getCanonicalType(T) != OverloadTy && \"Unresolved overloaded function type\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 3274, __PRETTY_FUNCTION__)) | |||
3274 | "Unresolved overloaded function type")((getCanonicalType(T) != OverloadTy && "Unresolved overloaded function type" ) ? static_cast<void> (0) : __assert_fail ("getCanonicalType(T) != OverloadTy && \"Unresolved overloaded function type\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 3274, __PRETTY_FUNCTION__)); | |||
3275 | ||||
3276 | // Unique pointers, to guarantee there is only one pointer of a particular | |||
3277 | // structure. | |||
3278 | llvm::FoldingSetNodeID ID; | |||
3279 | ReferenceType::Profile(ID, T, SpelledAsLValue); | |||
3280 | ||||
3281 | void *InsertPos = nullptr; | |||
3282 | if (LValueReferenceType *RT = | |||
3283 | LValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
3284 | return QualType(RT, 0); | |||
3285 | ||||
3286 | const auto *InnerRef = T->getAs<ReferenceType>(); | |||
3287 | ||||
3288 | // If the referencee type isn't canonical, this won't be a canonical type | |||
3289 | // either, so fill in the canonical type field. | |||
3290 | QualType Canonical; | |||
3291 | if (!SpelledAsLValue || InnerRef || !T.isCanonical()) { | |||
3292 | QualType PointeeType = (InnerRef ? InnerRef->getPointeeType() : T); | |||
3293 | Canonical = getLValueReferenceType(getCanonicalType(PointeeType)); | |||
3294 | ||||
3295 | // Get the new insert position for the node we care about. | |||
3296 | LValueReferenceType *NewIP = | |||
3297 | LValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
3298 | assert(!NewIP && "Shouldn't be in the map!")((!NewIP && "Shouldn't be in the map!") ? static_cast <void> (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 3298, __PRETTY_FUNCTION__)); (void)NewIP; | |||
3299 | } | |||
3300 | ||||
3301 | auto *New = new (*this, TypeAlignment) LValueReferenceType(T, Canonical, | |||
3302 | SpelledAsLValue); | |||
3303 | Types.push_back(New); | |||
3304 | LValueReferenceTypes.InsertNode(New, InsertPos); | |||
3305 | ||||
3306 | return QualType(New, 0); | |||
3307 | } | |||
3308 | ||||
3309 | /// getRValueReferenceType - Return the uniqued reference to the type for an | |||
3310 | /// rvalue reference to the specified type. | |||
3311 | QualType ASTContext::getRValueReferenceType(QualType T) const { | |||
3312 | // Unique pointers, to guarantee there is only one pointer of a particular | |||
3313 | // structure. | |||
3314 | llvm::FoldingSetNodeID ID; | |||
3315 | ReferenceType::Profile(ID, T, false); | |||
3316 | ||||
3317 | void *InsertPos = nullptr; | |||
3318 | if (RValueReferenceType *RT = | |||
3319 | RValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
3320 | return QualType(RT, 0); | |||
3321 | ||||
3322 | const auto *InnerRef = T->getAs<ReferenceType>(); | |||
3323 | ||||
3324 | // If the referencee type isn't canonical, this won't be a canonical type | |||
3325 | // either, so fill in the canonical type field. | |||
3326 | QualType Canonical; | |||
3327 | if (InnerRef || !T.isCanonical()) { | |||
3328 | QualType PointeeType = (InnerRef ? InnerRef->getPointeeType() : T); | |||
3329 | Canonical = getRValueReferenceType(getCanonicalType(PointeeType)); | |||
3330 | ||||
3331 | // Get the new insert position for the node we care about. | |||
3332 | RValueReferenceType *NewIP = | |||
3333 | RValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
3334 | assert(!NewIP && "Shouldn't be in the map!")((!NewIP && "Shouldn't be in the map!") ? static_cast <void> (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 3334, __PRETTY_FUNCTION__)); (void)NewIP; | |||
3335 | } | |||
3336 | ||||
3337 | auto *New = new (*this, TypeAlignment) RValueReferenceType(T, Canonical); | |||
3338 | Types.push_back(New); | |||
3339 | RValueReferenceTypes.InsertNode(New, InsertPos); | |||
3340 | return QualType(New, 0); | |||
3341 | } | |||
3342 | ||||
3343 | /// getMemberPointerType - Return the uniqued reference to the type for a | |||
3344 | /// member pointer to the specified type, in the specified class. | |||
3345 | QualType ASTContext::getMemberPointerType(QualType T, const Type *Cls) const { | |||
3346 | // Unique pointers, to guarantee there is only one pointer of a particular | |||
3347 | // structure. | |||
3348 | llvm::FoldingSetNodeID ID; | |||
3349 | MemberPointerType::Profile(ID, T, Cls); | |||
3350 | ||||
3351 | void *InsertPos = nullptr; | |||
3352 | if (MemberPointerType *PT = | |||
3353 | MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
3354 | return QualType(PT, 0); | |||
3355 | ||||
3356 | // If the pointee or class type isn't canonical, this won't be a canonical | |||
3357 | // type either, so fill in the canonical type field. | |||
3358 | QualType Canonical; | |||
3359 | if (!T.isCanonical() || !Cls->isCanonicalUnqualified()) { | |||
3360 | Canonical = getMemberPointerType(getCanonicalType(T),getCanonicalType(Cls)); | |||
3361 | ||||
3362 | // Get the new insert position for the node we care about. | |||
3363 | MemberPointerType *NewIP = | |||
3364 | MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
3365 | assert(!NewIP && "Shouldn't be in the map!")((!NewIP && "Shouldn't be in the map!") ? static_cast <void> (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 3365, __PRETTY_FUNCTION__)); (void)NewIP; | |||
3366 | } | |||
3367 | auto *New = new (*this, TypeAlignment) MemberPointerType(T, Cls, Canonical); | |||
3368 | Types.push_back(New); | |||
3369 | MemberPointerTypes.InsertNode(New, InsertPos); | |||
3370 | return QualType(New, 0); | |||
3371 | } | |||
3372 | ||||
3373 | /// getConstantArrayType - Return the unique reference to the type for an | |||
3374 | /// array of the specified element type. | |||
3375 | QualType ASTContext::getConstantArrayType(QualType EltTy, | |||
3376 | const llvm::APInt &ArySizeIn, | |||
3377 | const Expr *SizeExpr, | |||
3378 | ArrayType::ArraySizeModifier ASM, | |||
3379 | unsigned IndexTypeQuals) const { | |||
3380 | assert((EltTy->isDependentType() ||(((EltTy->isDependentType() || EltTy->isIncompleteType( ) || EltTy->isConstantSizeType()) && "Constant array of VLAs is illegal!" ) ? static_cast<void> (0) : __assert_fail ("(EltTy->isDependentType() || EltTy->isIncompleteType() || EltTy->isConstantSizeType()) && \"Constant array of VLAs is illegal!\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 3382, __PRETTY_FUNCTION__)) | |||
3381 | EltTy->isIncompleteType() || EltTy->isConstantSizeType()) &&(((EltTy->isDependentType() || EltTy->isIncompleteType( ) || EltTy->isConstantSizeType()) && "Constant array of VLAs is illegal!" ) ? static_cast<void> (0) : __assert_fail ("(EltTy->isDependentType() || EltTy->isIncompleteType() || EltTy->isConstantSizeType()) && \"Constant array of VLAs is illegal!\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 3382, __PRETTY_FUNCTION__)) | |||
3382 | "Constant array of VLAs is illegal!")(((EltTy->isDependentType() || EltTy->isIncompleteType( ) || EltTy->isConstantSizeType()) && "Constant array of VLAs is illegal!" ) ? static_cast<void> (0) : __assert_fail ("(EltTy->isDependentType() || EltTy->isIncompleteType() || EltTy->isConstantSizeType()) && \"Constant array of VLAs is illegal!\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 3382, __PRETTY_FUNCTION__)); | |||
3383 | ||||
3384 | // We only need the size as part of the type if it's instantiation-dependent. | |||
3385 | if (SizeExpr && !SizeExpr->isInstantiationDependent()) | |||
3386 | SizeExpr = nullptr; | |||
3387 | ||||
3388 | // Convert the array size into a canonical width matching the pointer size for | |||
3389 | // the target. | |||
3390 | llvm::APInt ArySize(ArySizeIn); | |||
3391 | ArySize = ArySize.zextOrTrunc(Target->getMaxPointerWidth()); | |||
3392 | ||||
3393 | llvm::FoldingSetNodeID ID; | |||
3394 | ConstantArrayType::Profile(ID, *this, EltTy, ArySize, SizeExpr, ASM, | |||
3395 | IndexTypeQuals); | |||
3396 | ||||
3397 | void *InsertPos = nullptr; | |||
3398 | if (ConstantArrayType *ATP = | |||
3399 | ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
3400 | return QualType(ATP, 0); | |||
3401 | ||||
3402 | // If the element type isn't canonical or has qualifiers, or the array bound | |||
3403 | // is instantiation-dependent, this won't be a canonical type either, so fill | |||
3404 | // in the canonical type field. | |||
3405 | QualType Canon; | |||
3406 | if (!EltTy.isCanonical() || EltTy.hasLocalQualifiers() || SizeExpr) { | |||
3407 | SplitQualType canonSplit = getCanonicalType(EltTy).split(); | |||
3408 | Canon = getConstantArrayType(QualType(canonSplit.Ty, 0), ArySize, nullptr, | |||
3409 | ASM, IndexTypeQuals); | |||
3410 | Canon = getQualifiedType(Canon, canonSplit.Quals); | |||
3411 | ||||
3412 | // Get the new insert position for the node we care about. | |||
3413 | ConstantArrayType *NewIP = | |||
3414 | ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
3415 | assert(!NewIP && "Shouldn't be in the map!")((!NewIP && "Shouldn't be in the map!") ? static_cast <void> (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 3415, __PRETTY_FUNCTION__)); (void)NewIP; | |||
3416 | } | |||
3417 | ||||
3418 | void *Mem = Allocate( | |||
3419 | ConstantArrayType::totalSizeToAlloc<const Expr *>(SizeExpr ? 1 : 0), | |||
3420 | TypeAlignment); | |||
3421 | auto *New = new (Mem) | |||
3422 | ConstantArrayType(EltTy, Canon, ArySize, SizeExpr, ASM, IndexTypeQuals); | |||
3423 | ConstantArrayTypes.InsertNode(New, InsertPos); | |||
3424 | Types.push_back(New); | |||
3425 | return QualType(New, 0); | |||
3426 | } | |||
3427 | ||||
3428 | /// getVariableArrayDecayedType - Turns the given type, which may be | |||
3429 | /// variably-modified, into the corresponding type with all the known | |||
3430 | /// sizes replaced with [*]. | |||
3431 | QualType ASTContext::getVariableArrayDecayedType(QualType type) const { | |||
3432 | // Vastly most common case. | |||
3433 | if (!type->isVariablyModifiedType()) return type; | |||
3434 | ||||
3435 | QualType result; | |||
3436 | ||||
3437 | SplitQualType split = type.getSplitDesugaredType(); | |||
3438 | const Type *ty = split.Ty; | |||
3439 | switch (ty->getTypeClass()) { | |||
3440 | #define TYPE(Class, Base) | |||
3441 | #define ABSTRACT_TYPE(Class, Base) | |||
3442 | #define NON_CANONICAL_TYPE(Class, Base) case Type::Class: | |||
3443 | #include "clang/AST/TypeNodes.inc" | |||
3444 | llvm_unreachable("didn't desugar past all non-canonical types?")::llvm::llvm_unreachable_internal("didn't desugar past all non-canonical types?" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 3444); | |||
3445 | ||||
3446 | // These types should never be variably-modified. | |||
3447 | case Type::Builtin: | |||
3448 | case Type::Complex: | |||
3449 | case Type::Vector: | |||
3450 | case Type::DependentVector: | |||
3451 | case Type::ExtVector: | |||
3452 | case Type::DependentSizedExtVector: | |||
3453 | case Type::ConstantMatrix: | |||
3454 | case Type::DependentSizedMatrix: | |||
3455 | case Type::DependentAddressSpace: | |||
3456 | case Type::ObjCObject: | |||
3457 | case Type::ObjCInterface: | |||
3458 | case Type::ObjCObjectPointer: | |||
3459 | case Type::Record: | |||
3460 | case Type::Enum: | |||
3461 | case Type::UnresolvedUsing: | |||
3462 | case Type::TypeOfExpr: | |||
3463 | case Type::TypeOf: | |||
3464 | case Type::Decltype: | |||
3465 | case Type::UnaryTransform: | |||
3466 | case Type::DependentName: | |||
3467 | case Type::InjectedClassName: | |||
3468 | case Type::TemplateSpecialization: | |||
3469 | case Type::DependentTemplateSpecialization: | |||
3470 | case Type::TemplateTypeParm: | |||
3471 | case Type::SubstTemplateTypeParmPack: | |||
3472 | case Type::Auto: | |||
3473 | case Type::DeducedTemplateSpecialization: | |||
3474 | case Type::PackExpansion: | |||
3475 | case Type::ExtInt: | |||
3476 | case Type::DependentExtInt: | |||
3477 | llvm_unreachable("type should never be variably-modified")::llvm::llvm_unreachable_internal("type should never be variably-modified" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 3477); | |||
3478 | ||||
3479 | // These types can be variably-modified but should never need to | |||
3480 | // further decay. | |||
3481 | case Type::FunctionNoProto: | |||
3482 | case Type::FunctionProto: | |||
3483 | case Type::BlockPointer: | |||
3484 | case Type::MemberPointer: | |||
3485 | case Type::Pipe: | |||
3486 | return type; | |||
3487 | ||||
3488 | // These types can be variably-modified. All these modifications | |||
3489 | // preserve structure except as noted by comments. | |||
3490 | // TODO: if we ever care about optimizing VLAs, there are no-op | |||
3491 | // optimizations available here. | |||
3492 | case Type::Pointer: | |||
3493 | result = getPointerType(getVariableArrayDecayedType( | |||
3494 | cast<PointerType>(ty)->getPointeeType())); | |||
3495 | break; | |||
3496 | ||||
3497 | case Type::LValueReference: { | |||
3498 | const auto *lv = cast<LValueReferenceType>(ty); | |||
3499 | result = getLValueReferenceType( | |||
3500 | getVariableArrayDecayedType(lv->getPointeeType()), | |||
3501 | lv->isSpelledAsLValue()); | |||
3502 | break; | |||
3503 | } | |||
3504 | ||||
3505 | case Type::RValueReference: { | |||
3506 | const auto *lv = cast<RValueReferenceType>(ty); | |||
3507 | result = getRValueReferenceType( | |||
3508 | getVariableArrayDecayedType(lv->getPointeeType())); | |||
3509 | break; | |||
3510 | } | |||
3511 | ||||
3512 | case Type::Atomic: { | |||
3513 | const auto *at = cast<AtomicType>(ty); | |||
3514 | result = getAtomicType(getVariableArrayDecayedType(at->getValueType())); | |||
3515 | break; | |||
3516 | } | |||
3517 | ||||
3518 | case Type::ConstantArray: { | |||
3519 | const auto *cat = cast<ConstantArrayType>(ty); | |||
3520 | result = getConstantArrayType( | |||
3521 | getVariableArrayDecayedType(cat->getElementType()), | |||
3522 | cat->getSize(), | |||
3523 | cat->getSizeExpr(), | |||
3524 | cat->getSizeModifier(), | |||
3525 | cat->getIndexTypeCVRQualifiers()); | |||
3526 | break; | |||
3527 | } | |||
3528 | ||||
3529 | case Type::DependentSizedArray: { | |||
3530 | const auto *dat = cast<DependentSizedArrayType>(ty); | |||
3531 | result = getDependentSizedArrayType( | |||
3532 | getVariableArrayDecayedType(dat->getElementType()), | |||
3533 | dat->getSizeExpr(), | |||
3534 | dat->getSizeModifier(), | |||
3535 | dat->getIndexTypeCVRQualifiers(), | |||
3536 | dat->getBracketsRange()); | |||
3537 | break; | |||
3538 | } | |||
3539 | ||||
3540 | // Turn incomplete types into [*] types. | |||
3541 | case Type::IncompleteArray: { | |||
3542 | const auto *iat = cast<IncompleteArrayType>(ty); | |||
3543 | result = getVariableArrayType( | |||
3544 | getVariableArrayDecayedType(iat->getElementType()), | |||
3545 | /*size*/ nullptr, | |||
3546 | ArrayType::Normal, | |||
3547 | iat->getIndexTypeCVRQualifiers(), | |||
3548 | SourceRange()); | |||
3549 | break; | |||
3550 | } | |||
3551 | ||||
3552 | // Turn VLA types into [*] types. | |||
3553 | case Type::VariableArray: { | |||
3554 | const auto *vat = cast<VariableArrayType>(ty); | |||
3555 | result = getVariableArrayType( | |||
3556 | getVariableArrayDecayedType(vat->getElementType()), | |||
3557 | /*size*/ nullptr, | |||
3558 | ArrayType::Star, | |||
3559 | vat->getIndexTypeCVRQualifiers(), | |||
3560 | vat->getBracketsRange()); | |||
3561 | break; | |||
3562 | } | |||
3563 | } | |||
3564 | ||||
3565 | // Apply the top-level qualifiers from the original. | |||
3566 | return getQualifiedType(result, split.Quals); | |||
3567 | } | |||
3568 | ||||
3569 | /// getVariableArrayType - Returns a non-unique reference to the type for a | |||
3570 | /// variable array of the specified element type. | |||
3571 | QualType ASTContext::getVariableArrayType(QualType EltTy, | |||
3572 | Expr *NumElts, | |||
3573 | ArrayType::ArraySizeModifier ASM, | |||
3574 | unsigned IndexTypeQuals, | |||
3575 | SourceRange Brackets) const { | |||
3576 | // Since we don't unique expressions, it isn't possible to unique VLA's | |||
3577 | // that have an expression provided for their size. | |||
3578 | QualType Canon; | |||
3579 | ||||
3580 | // Be sure to pull qualifiers off the element type. | |||
3581 | if (!EltTy.isCanonical() || EltTy.hasLocalQualifiers()) { | |||
3582 | SplitQualType canonSplit = getCanonicalType(EltTy).split(); | |||
3583 | Canon = getVariableArrayType(QualType(canonSplit.Ty, 0), NumElts, ASM, | |||
3584 | IndexTypeQuals, Brackets); | |||
3585 | Canon = getQualifiedType(Canon, canonSplit.Quals); | |||
3586 | } | |||
3587 | ||||
3588 | auto *New = new (*this, TypeAlignment) | |||
3589 | VariableArrayType(EltTy, Canon, NumElts, ASM, IndexTypeQuals, Brackets); | |||
3590 | ||||
3591 | VariableArrayTypes.push_back(New); | |||
3592 | Types.push_back(New); | |||
3593 | return QualType(New, 0); | |||
3594 | } | |||
3595 | ||||
3596 | /// getDependentSizedArrayType - Returns a non-unique reference to | |||
3597 | /// the type for a dependently-sized array of the specified element | |||
3598 | /// type. | |||
3599 | QualType ASTContext::getDependentSizedArrayType(QualType elementType, | |||
3600 | Expr *numElements, | |||
3601 | ArrayType::ArraySizeModifier ASM, | |||
3602 | unsigned elementTypeQuals, | |||
3603 | SourceRange brackets) const { | |||
3604 | assert((!numElements || numElements->isTypeDependent() ||(((!numElements || numElements->isTypeDependent() || numElements ->isValueDependent()) && "Size must be type- or value-dependent!" ) ? static_cast<void> (0) : __assert_fail ("(!numElements || numElements->isTypeDependent() || numElements->isValueDependent()) && \"Size must be type- or value-dependent!\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 3606, __PRETTY_FUNCTION__)) | |||
3605 | numElements->isValueDependent()) &&(((!numElements || numElements->isTypeDependent() || numElements ->isValueDependent()) && "Size must be type- or value-dependent!" ) ? static_cast<void> (0) : __assert_fail ("(!numElements || numElements->isTypeDependent() || numElements->isValueDependent()) && \"Size must be type- or value-dependent!\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 3606, __PRETTY_FUNCTION__)) | |||
3606 | "Size must be type- or value-dependent!")(((!numElements || numElements->isTypeDependent() || numElements ->isValueDependent()) && "Size must be type- or value-dependent!" ) ? static_cast<void> (0) : __assert_fail ("(!numElements || numElements->isTypeDependent() || numElements->isValueDependent()) && \"Size must be type- or value-dependent!\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 3606, __PRETTY_FUNCTION__)); | |||
3607 | ||||
3608 | // Dependently-sized array types that do not have a specified number | |||
3609 | // of elements will have their sizes deduced from a dependent | |||
3610 | // initializer. We do no canonicalization here at all, which is okay | |||
3611 | // because they can't be used in most locations. | |||
3612 | if (!numElements) { | |||
3613 | auto *newType | |||
3614 | = new (*this, TypeAlignment) | |||
3615 | DependentSizedArrayType(*this, elementType, QualType(), | |||
3616 | numElements, ASM, elementTypeQuals, | |||
3617 | brackets); | |||
3618 | Types.push_back(newType); | |||
3619 | return QualType(newType, 0); | |||
3620 | } | |||
3621 | ||||
3622 | // Otherwise, we actually build a new type every time, but we | |||
3623 | // also build a canonical type. | |||
3624 | ||||
3625 | SplitQualType canonElementType = getCanonicalType(elementType).split(); | |||
3626 | ||||
3627 | void *insertPos = nullptr; | |||
3628 | llvm::FoldingSetNodeID ID; | |||
3629 | DependentSizedArrayType::Profile(ID, *this, | |||
3630 | QualType(canonElementType.Ty, 0), | |||
3631 | ASM, elementTypeQuals, numElements); | |||
3632 | ||||
3633 | // Look for an existing type with these properties. | |||
3634 | DependentSizedArrayType *canonTy = | |||
3635 | DependentSizedArrayTypes.FindNodeOrInsertPos(ID, insertPos); | |||
3636 | ||||
3637 | // If we don't have one, build one. | |||
3638 | if (!canonTy) { | |||
3639 | canonTy = new (*this, TypeAlignment) | |||
3640 | DependentSizedArrayType(*this, QualType(canonElementType.Ty, 0), | |||
3641 | QualType(), numElements, ASM, elementTypeQuals, | |||
3642 | brackets); | |||
3643 | DependentSizedArrayTypes.InsertNode(canonTy, insertPos); | |||
3644 | Types.push_back(canonTy); | |||
3645 | } | |||
3646 | ||||
3647 | // Apply qualifiers from the element type to the array. | |||
3648 | QualType canon = getQualifiedType(QualType(canonTy,0), | |||
3649 | canonElementType.Quals); | |||
3650 | ||||
3651 | // If we didn't need extra canonicalization for the element type or the size | |||
3652 | // expression, then just use that as our result. | |||
3653 | if (QualType(canonElementType.Ty, 0) == elementType && | |||
3654 | canonTy->getSizeExpr() == numElements) | |||
3655 | return canon; | |||
3656 | ||||
3657 | // Otherwise, we need to build a type which follows the spelling | |||
3658 | // of the element type. | |||
3659 | auto *sugaredType | |||
3660 | = new (*this, TypeAlignment) | |||
3661 | DependentSizedArrayType(*this, elementType, canon, numElements, | |||
3662 | ASM, elementTypeQuals, brackets); | |||
3663 | Types.push_back(sugaredType); | |||
3664 | return QualType(sugaredType, 0); | |||
3665 | } | |||
3666 | ||||
3667 | QualType ASTContext::getIncompleteArrayType(QualType elementType, | |||
3668 | ArrayType::ArraySizeModifier ASM, | |||
3669 | unsigned elementTypeQuals) const { | |||
3670 | llvm::FoldingSetNodeID ID; | |||
3671 | IncompleteArrayType::Profile(ID, elementType, ASM, elementTypeQuals); | |||
3672 | ||||
3673 | void *insertPos = nullptr; | |||
3674 | if (IncompleteArrayType *iat = | |||
3675 | IncompleteArrayTypes.FindNodeOrInsertPos(ID, insertPos)) | |||
3676 | return QualType(iat, 0); | |||
3677 | ||||
3678 | // If the element type isn't canonical, this won't be a canonical type | |||
3679 | // either, so fill in the canonical type field. We also have to pull | |||
3680 | // qualifiers off the element type. | |||
3681 | QualType canon; | |||
3682 | ||||
3683 | if (!elementType.isCanonical() || elementType.hasLocalQualifiers()) { | |||
3684 | SplitQualType canonSplit = getCanonicalType(elementType).split(); | |||
3685 | canon = getIncompleteArrayType(QualType(canonSplit.Ty, 0), | |||
3686 | ASM, elementTypeQuals); | |||
3687 | canon = getQualifiedType(canon, canonSplit.Quals); | |||
3688 | ||||
3689 | // Get the new insert position for the node we care about. | |||
3690 | IncompleteArrayType *existing = | |||
3691 | IncompleteArrayTypes.FindNodeOrInsertPos(ID, insertPos); | |||
3692 | assert(!existing && "Shouldn't be in the map!")((!existing && "Shouldn't be in the map!") ? static_cast <void> (0) : __assert_fail ("!existing && \"Shouldn't be in the map!\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 3692, __PRETTY_FUNCTION__)); (void) existing; | |||
3693 | } | |||
3694 | ||||
3695 | auto *newType = new (*this, TypeAlignment) | |||
3696 | IncompleteArrayType(elementType, canon, ASM, elementTypeQuals); | |||
3697 | ||||
3698 | IncompleteArrayTypes.InsertNode(newType, insertPos); | |||
3699 | Types.push_back(newType); | |||
3700 | return QualType(newType, 0); | |||
3701 | } | |||
3702 | ||||
3703 | ASTContext::BuiltinVectorTypeInfo | |||
3704 | ASTContext::getBuiltinVectorTypeInfo(const BuiltinType *Ty) const { | |||
3705 | #define SVE_INT_ELTTY(BITS, ELTS, SIGNED, NUMVECTORS){getIntTypeForBitwidth(BITS, SIGNED), llvm::ElementCount::getScalable (ELTS), NUMVECTORS}; \ | |||
3706 | {getIntTypeForBitwidth(BITS, SIGNED), llvm::ElementCount::getScalable(ELTS), \ | |||
3707 | NUMVECTORS}; | |||
3708 | ||||
3709 | #define SVE_ELTTY(ELTTY, ELTS, NUMVECTORS){ELTTY, llvm::ElementCount::getScalable(ELTS), NUMVECTORS}; \ | |||
3710 | {ELTTY, llvm::ElementCount::getScalable(ELTS), NUMVECTORS}; | |||
3711 | ||||
3712 | switch (Ty->getKind()) { | |||
3713 | default: | |||
3714 | llvm_unreachable("Unsupported builtin vector type")::llvm::llvm_unreachable_internal("Unsupported builtin vector type" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 3714); | |||
3715 | case BuiltinType::SveInt8: | |||
3716 | return SVE_INT_ELTTY(8, 16, true, 1){getIntTypeForBitwidth(8, true), llvm::ElementCount::getScalable (16), 1};; | |||
3717 | case BuiltinType::SveUint8: | |||
3718 | return SVE_INT_ELTTY(8, 16, false, 1){getIntTypeForBitwidth(8, false), llvm::ElementCount::getScalable (16), 1};; | |||
3719 | case BuiltinType::SveInt8x2: | |||
3720 | return SVE_INT_ELTTY(8, 16, true, 2){getIntTypeForBitwidth(8, true), llvm::ElementCount::getScalable (16), 2};; | |||
3721 | case BuiltinType::SveUint8x2: | |||
3722 | return SVE_INT_ELTTY(8, 16, false, 2){getIntTypeForBitwidth(8, false), llvm::ElementCount::getScalable (16), 2};; | |||
3723 | case BuiltinType::SveInt8x3: | |||
3724 | return SVE_INT_ELTTY(8, 16, true, 3){getIntTypeForBitwidth(8, true), llvm::ElementCount::getScalable (16), 3};; | |||
3725 | case BuiltinType::SveUint8x3: | |||
3726 | return SVE_INT_ELTTY(8, 16, false, 3){getIntTypeForBitwidth(8, false), llvm::ElementCount::getScalable (16), 3};; | |||
3727 | case BuiltinType::SveInt8x4: | |||
3728 | return SVE_INT_ELTTY(8, 16, true, 4){getIntTypeForBitwidth(8, true), llvm::ElementCount::getScalable (16), 4};; | |||
3729 | case BuiltinType::SveUint8x4: | |||
3730 | return SVE_INT_ELTTY(8, 16, false, 4){getIntTypeForBitwidth(8, false), llvm::ElementCount::getScalable (16), 4};; | |||
3731 | case BuiltinType::SveInt16: | |||
3732 | return SVE_INT_ELTTY(16, 8, true, 1){getIntTypeForBitwidth(16, true), llvm::ElementCount::getScalable (8), 1};; | |||
3733 | case BuiltinType::SveUint16: | |||
3734 | return SVE_INT_ELTTY(16, 8, false, 1){getIntTypeForBitwidth(16, false), llvm::ElementCount::getScalable (8), 1};; | |||
3735 | case BuiltinType::SveInt16x2: | |||
3736 | return SVE_INT_ELTTY(16, 8, true, 2){getIntTypeForBitwidth(16, true), llvm::ElementCount::getScalable (8), 2};; | |||
3737 | case BuiltinType::SveUint16x2: | |||
3738 | return SVE_INT_ELTTY(16, 8, false, 2){getIntTypeForBitwidth(16, false), llvm::ElementCount::getScalable (8), 2};; | |||
3739 | case BuiltinType::SveInt16x3: | |||
3740 | return SVE_INT_ELTTY(16, 8, true, 3){getIntTypeForBitwidth(16, true), llvm::ElementCount::getScalable (8), 3};; | |||
3741 | case BuiltinType::SveUint16x3: | |||
3742 | return SVE_INT_ELTTY(16, 8, false, 3){getIntTypeForBitwidth(16, false), llvm::ElementCount::getScalable (8), 3};; | |||
3743 | case BuiltinType::SveInt16x4: | |||
3744 | return SVE_INT_ELTTY(16, 8, true, 4){getIntTypeForBitwidth(16, true), llvm::ElementCount::getScalable (8), 4};; | |||
3745 | case BuiltinType::SveUint16x4: | |||
3746 | return SVE_INT_ELTTY(16, 8, false, 4){getIntTypeForBitwidth(16, false), llvm::ElementCount::getScalable (8), 4};; | |||
3747 | case BuiltinType::SveInt32: | |||
3748 | return SVE_INT_ELTTY(32, 4, true, 1){getIntTypeForBitwidth(32, true), llvm::ElementCount::getScalable (4), 1};; | |||
3749 | case BuiltinType::SveUint32: | |||
3750 | return SVE_INT_ELTTY(32, 4, false, 1){getIntTypeForBitwidth(32, false), llvm::ElementCount::getScalable (4), 1};; | |||
3751 | case BuiltinType::SveInt32x2: | |||
3752 | return SVE_INT_ELTTY(32, 4, true, 2){getIntTypeForBitwidth(32, true), llvm::ElementCount::getScalable (4), 2};; | |||
3753 | case BuiltinType::SveUint32x2: | |||
3754 | return SVE_INT_ELTTY(32, 4, false, 2){getIntTypeForBitwidth(32, false), llvm::ElementCount::getScalable (4), 2};; | |||
3755 | case BuiltinType::SveInt32x3: | |||
3756 | return SVE_INT_ELTTY(32, 4, true, 3){getIntTypeForBitwidth(32, true), llvm::ElementCount::getScalable (4), 3};; | |||
3757 | case BuiltinType::SveUint32x3: | |||
3758 | return SVE_INT_ELTTY(32, 4, false, 3){getIntTypeForBitwidth(32, false), llvm::ElementCount::getScalable (4), 3};; | |||
3759 | case BuiltinType::SveInt32x4: | |||
3760 | return SVE_INT_ELTTY(32, 4, true, 4){getIntTypeForBitwidth(32, true), llvm::ElementCount::getScalable (4), 4};; | |||
3761 | case BuiltinType::SveUint32x4: | |||
3762 | return SVE_INT_ELTTY(32, 4, false, 4){getIntTypeForBitwidth(32, false), llvm::ElementCount::getScalable (4), 4};; | |||
3763 | case BuiltinType::SveInt64: | |||
3764 | return SVE_INT_ELTTY(64, 2, true, 1){getIntTypeForBitwidth(64, true), llvm::ElementCount::getScalable (2), 1};; | |||
3765 | case BuiltinType::SveUint64: | |||
3766 | return SVE_INT_ELTTY(64, 2, false, 1){getIntTypeForBitwidth(64, false), llvm::ElementCount::getScalable (2), 1};; | |||
3767 | case BuiltinType::SveInt64x2: | |||
3768 | return SVE_INT_ELTTY(64, 2, true, 2){getIntTypeForBitwidth(64, true), llvm::ElementCount::getScalable (2), 2};; | |||
3769 | case BuiltinType::SveUint64x2: | |||
3770 | return SVE_INT_ELTTY(64, 2, false, 2){getIntTypeForBitwidth(64, false), llvm::ElementCount::getScalable (2), 2};; | |||
3771 | case BuiltinType::SveInt64x3: | |||
3772 | return SVE_INT_ELTTY(64, 2, true, 3){getIntTypeForBitwidth(64, true), llvm::ElementCount::getScalable (2), 3};; | |||
3773 | case BuiltinType::SveUint64x3: | |||
3774 | return SVE_INT_ELTTY(64, 2, false, 3){getIntTypeForBitwidth(64, false), llvm::ElementCount::getScalable (2), 3};; | |||
3775 | case BuiltinType::SveInt64x4: | |||
3776 | return SVE_INT_ELTTY(64, 2, true, 4){getIntTypeForBitwidth(64, true), llvm::ElementCount::getScalable (2), 4};; | |||
3777 | case BuiltinType::SveUint64x4: | |||
3778 | return SVE_INT_ELTTY(64, 2, false, 4){getIntTypeForBitwidth(64, false), llvm::ElementCount::getScalable (2), 4};; | |||
3779 | case BuiltinType::SveBool: | |||
3780 | return SVE_ELTTY(BoolTy, 16, 1){BoolTy, llvm::ElementCount::getScalable(16), 1};; | |||
3781 | case BuiltinType::SveFloat16: | |||
3782 | return SVE_ELTTY(HalfTy, 8, 1){HalfTy, llvm::ElementCount::getScalable(8), 1};; | |||
3783 | case BuiltinType::SveFloat16x2: | |||
3784 | return SVE_ELTTY(HalfTy, 8, 2){HalfTy, llvm::ElementCount::getScalable(8), 2};; | |||
3785 | case BuiltinType::SveFloat16x3: | |||
3786 | return SVE_ELTTY(HalfTy, 8, 3){HalfTy, llvm::ElementCount::getScalable(8), 3};; | |||
3787 | case BuiltinType::SveFloat16x4: | |||
3788 | return SVE_ELTTY(HalfTy, 8, 4){HalfTy, llvm::ElementCount::getScalable(8), 4};; | |||
3789 | case BuiltinType::SveFloat32: | |||
3790 | return SVE_ELTTY(FloatTy, 4, 1){FloatTy, llvm::ElementCount::getScalable(4), 1};; | |||
3791 | case BuiltinType::SveFloat32x2: | |||
3792 | return SVE_ELTTY(FloatTy, 4, 2){FloatTy, llvm::ElementCount::getScalable(4), 2};; | |||
3793 | case BuiltinType::SveFloat32x3: | |||
3794 | return SVE_ELTTY(FloatTy, 4, 3){FloatTy, llvm::ElementCount::getScalable(4), 3};; | |||
3795 | case BuiltinType::SveFloat32x4: | |||
3796 | return SVE_ELTTY(FloatTy, 4, 4){FloatTy, llvm::ElementCount::getScalable(4), 4};; | |||
3797 | case BuiltinType::SveFloat64: | |||
3798 | return SVE_ELTTY(DoubleTy, 2, 1){DoubleTy, llvm::ElementCount::getScalable(2), 1};; | |||
3799 | case BuiltinType::SveFloat64x2: | |||
3800 | return SVE_ELTTY(DoubleTy, 2, 2){DoubleTy, llvm::ElementCount::getScalable(2), 2};; | |||
3801 | case BuiltinType::SveFloat64x3: | |||
3802 | return SVE_ELTTY(DoubleTy, 2, 3){DoubleTy, llvm::ElementCount::getScalable(2), 3};; | |||
3803 | case BuiltinType::SveFloat64x4: | |||
3804 | return SVE_ELTTY(DoubleTy, 2, 4){DoubleTy, llvm::ElementCount::getScalable(2), 4};; | |||
3805 | case BuiltinType::SveBFloat16: | |||
3806 | return SVE_ELTTY(BFloat16Ty, 8, 1){BFloat16Ty, llvm::ElementCount::getScalable(8), 1};; | |||
3807 | case BuiltinType::SveBFloat16x2: | |||
3808 | return SVE_ELTTY(BFloat16Ty, 8, 2){BFloat16Ty, llvm::ElementCount::getScalable(8), 2};; | |||
3809 | case BuiltinType::SveBFloat16x3: | |||
3810 | return SVE_ELTTY(BFloat16Ty, 8, 3){BFloat16Ty, llvm::ElementCount::getScalable(8), 3};; | |||
3811 | case BuiltinType::SveBFloat16x4: | |||
3812 | return SVE_ELTTY(BFloat16Ty, 8, 4){BFloat16Ty, llvm::ElementCount::getScalable(8), 4};; | |||
3813 | } | |||
3814 | } | |||
3815 | ||||
3816 | /// getScalableVectorType - Return the unique reference to a scalable vector | |||
3817 | /// type of the specified element type and size. VectorType must be a built-in | |||
3818 | /// type. | |||
3819 | QualType ASTContext::getScalableVectorType(QualType EltTy, | |||
3820 | unsigned NumElts) const { | |||
3821 | if (Target->hasAArch64SVETypes()) { | |||
3822 | uint64_t EltTySize = getTypeSize(EltTy); | |||
3823 | #define SVE_VECTOR_TYPE(Name, MangledName, Id, SingletonId, NumEls, ElBits, \ | |||
3824 | IsSigned, IsFP, IsBF) \ | |||
3825 | if (!EltTy->isBooleanType() && \ | |||
3826 | ((EltTy->hasIntegerRepresentation() && \ | |||
3827 | EltTy->hasSignedIntegerRepresentation() == IsSigned) || \ | |||
3828 | (EltTy->hasFloatingRepresentation() && !EltTy->isBFloat16Type() && \ | |||
3829 | IsFP && !IsBF) || \ | |||
3830 | (EltTy->hasFloatingRepresentation() && EltTy->isBFloat16Type() && \ | |||
3831 | IsBF && !IsFP)) && \ | |||
3832 | EltTySize == ElBits && NumElts == NumEls) { \ | |||
3833 | return SingletonId; \ | |||
3834 | } | |||
3835 | #define SVE_PREDICATE_TYPE(Name, MangledName, Id, SingletonId, NumEls) \ | |||
3836 | if (EltTy->isBooleanType() && NumElts == NumEls) \ | |||
3837 | return SingletonId; | |||
3838 | #include "clang/Basic/AArch64SVEACLETypes.def" | |||
3839 | } | |||
3840 | return QualType(); | |||
3841 | } | |||
3842 | ||||
3843 | /// getVectorType - Return the unique reference to a vector type of | |||
3844 | /// the specified element type and size. VectorType must be a built-in type. | |||
3845 | QualType ASTContext::getVectorType(QualType vecType, unsigned NumElts, | |||
3846 | VectorType::VectorKind VecKind) const { | |||
3847 | assert(vecType->isBuiltinType())((vecType->isBuiltinType()) ? static_cast<void> (0) : __assert_fail ("vecType->isBuiltinType()", "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 3847, __PRETTY_FUNCTION__)); | |||
3848 | ||||
3849 | // Check if we've already instantiated a vector of this type. | |||
3850 | llvm::FoldingSetNodeID ID; | |||
3851 | VectorType::Profile(ID, vecType, NumElts, Type::Vector, VecKind); | |||
3852 | ||||
3853 | void *InsertPos = nullptr; | |||
3854 | if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
3855 | return QualType(VTP, 0); | |||
3856 | ||||
3857 | // If the element type isn't canonical, this won't be a canonical type either, | |||
3858 | // so fill in the canonical type field. | |||
3859 | QualType Canonical; | |||
3860 | if (!vecType.isCanonical()) { | |||
3861 | Canonical = getVectorType(getCanonicalType(vecType), NumElts, VecKind); | |||
3862 | ||||
3863 | // Get the new insert position for the node we care about. | |||
3864 | VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
3865 | assert(!NewIP && "Shouldn't be in the map!")((!NewIP && "Shouldn't be in the map!") ? static_cast <void> (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 3865, __PRETTY_FUNCTION__)); (void)NewIP; | |||
3866 | } | |||
3867 | auto *New = new (*this, TypeAlignment) | |||
3868 | VectorType(vecType, NumElts, Canonical, VecKind); | |||
3869 | VectorTypes.InsertNode(New, InsertPos); | |||
3870 | Types.push_back(New); | |||
3871 | return QualType(New, 0); | |||
3872 | } | |||
3873 | ||||
3874 | QualType | |||
3875 | ASTContext::getDependentVectorType(QualType VecType, Expr *SizeExpr, | |||
3876 | SourceLocation AttrLoc, | |||
3877 | VectorType::VectorKind VecKind) const { | |||
3878 | llvm::FoldingSetNodeID ID; | |||
3879 | DependentVectorType::Profile(ID, *this, getCanonicalType(VecType), SizeExpr, | |||
3880 | VecKind); | |||
3881 | void *InsertPos = nullptr; | |||
3882 | DependentVectorType *Canon = | |||
3883 | DependentVectorTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
3884 | DependentVectorType *New; | |||
3885 | ||||
3886 | if (Canon) { | |||
3887 | New = new (*this, TypeAlignment) DependentVectorType( | |||
3888 | *this, VecType, QualType(Canon, 0), SizeExpr, AttrLoc, VecKind); | |||
3889 | } else { | |||
3890 | QualType CanonVecTy = getCanonicalType(VecType); | |||
3891 | if (CanonVecTy == VecType) { | |||
3892 | New = new (*this, TypeAlignment) DependentVectorType( | |||
3893 | *this, VecType, QualType(), SizeExpr, AttrLoc, VecKind); | |||
3894 | ||||
3895 | DependentVectorType *CanonCheck = | |||
3896 | DependentVectorTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
3897 | assert(!CanonCheck &&((!CanonCheck && "Dependent-sized vector_size canonical type broken" ) ? static_cast<void> (0) : __assert_fail ("!CanonCheck && \"Dependent-sized vector_size canonical type broken\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 3898, __PRETTY_FUNCTION__)) | |||
3898 | "Dependent-sized vector_size canonical type broken")((!CanonCheck && "Dependent-sized vector_size canonical type broken" ) ? static_cast<void> (0) : __assert_fail ("!CanonCheck && \"Dependent-sized vector_size canonical type broken\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 3898, __PRETTY_FUNCTION__)); | |||
3899 | (void)CanonCheck; | |||
3900 | DependentVectorTypes.InsertNode(New, InsertPos); | |||
3901 | } else { | |||
3902 | QualType CanonTy = getDependentVectorType(CanonVecTy, SizeExpr, | |||
3903 | SourceLocation(), VecKind); | |||
3904 | New = new (*this, TypeAlignment) DependentVectorType( | |||
3905 | *this, VecType, CanonTy, SizeExpr, AttrLoc, VecKind); | |||
3906 | } | |||
3907 | } | |||
3908 | ||||
3909 | Types.push_back(New); | |||
3910 | return QualType(New, 0); | |||
3911 | } | |||
3912 | ||||
3913 | /// getExtVectorType - Return the unique reference to an extended vector type of | |||
3914 | /// the specified element type and size. VectorType must be a built-in type. | |||
3915 | QualType | |||
3916 | ASTContext::getExtVectorType(QualType vecType, unsigned NumElts) const { | |||
3917 | assert(vecType->isBuiltinType() || vecType->isDependentType())((vecType->isBuiltinType() || vecType->isDependentType( )) ? static_cast<void> (0) : __assert_fail ("vecType->isBuiltinType() || vecType->isDependentType()" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 3917, __PRETTY_FUNCTION__)); | |||
3918 | ||||
3919 | // Check if we've already instantiated a vector of this type. | |||
3920 | llvm::FoldingSetNodeID ID; | |||
3921 | VectorType::Profile(ID, vecType, NumElts, Type::ExtVector, | |||
3922 | VectorType::GenericVector); | |||
3923 | void *InsertPos = nullptr; | |||
3924 | if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
3925 | return QualType(VTP, 0); | |||
3926 | ||||
3927 | // If the element type isn't canonical, this won't be a canonical type either, | |||
3928 | // so fill in the canonical type field. | |||
3929 | QualType Canonical; | |||
3930 | if (!vecType.isCanonical()) { | |||
3931 | Canonical = getExtVectorType(getCanonicalType(vecType), NumElts); | |||
3932 | ||||
3933 | // Get the new insert position for the node we care about. | |||
3934 | VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
3935 | assert(!NewIP && "Shouldn't be in the map!")((!NewIP && "Shouldn't be in the map!") ? static_cast <void> (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 3935, __PRETTY_FUNCTION__)); (void)NewIP; | |||
3936 | } | |||
3937 | auto *New = new (*this, TypeAlignment) | |||
3938 | ExtVectorType(vecType, NumElts, Canonical); | |||
3939 | VectorTypes.InsertNode(New, InsertPos); | |||
3940 | Types.push_back(New); | |||
3941 | return QualType(New, 0); | |||
3942 | } | |||
3943 | ||||
3944 | QualType | |||
3945 | ASTContext::getDependentSizedExtVectorType(QualType vecType, | |||
3946 | Expr *SizeExpr, | |||
3947 | SourceLocation AttrLoc) const { | |||
3948 | llvm::FoldingSetNodeID ID; | |||
3949 | DependentSizedExtVectorType::Profile(ID, *this, getCanonicalType(vecType), | |||
3950 | SizeExpr); | |||
3951 | ||||
3952 | void *InsertPos = nullptr; | |||
3953 | DependentSizedExtVectorType *Canon | |||
3954 | = DependentSizedExtVectorTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
3955 | DependentSizedExtVectorType *New; | |||
3956 | if (Canon) { | |||
3957 | // We already have a canonical version of this array type; use it as | |||
3958 | // the canonical type for a newly-built type. | |||
3959 | New = new (*this, TypeAlignment) | |||
3960 | DependentSizedExtVectorType(*this, vecType, QualType(Canon, 0), | |||
3961 | SizeExpr, AttrLoc); | |||
3962 | } else { | |||
3963 | QualType CanonVecTy = getCanonicalType(vecType); | |||
3964 | if (CanonVecTy == vecType) { | |||
3965 | New = new (*this, TypeAlignment) | |||
3966 | DependentSizedExtVectorType(*this, vecType, QualType(), SizeExpr, | |||
3967 | AttrLoc); | |||
3968 | ||||
3969 | DependentSizedExtVectorType *CanonCheck | |||
3970 | = DependentSizedExtVectorTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
3971 | assert(!CanonCheck && "Dependent-sized ext_vector canonical type broken")((!CanonCheck && "Dependent-sized ext_vector canonical type broken" ) ? static_cast<void> (0) : __assert_fail ("!CanonCheck && \"Dependent-sized ext_vector canonical type broken\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 3971, __PRETTY_FUNCTION__)); | |||
3972 | (void)CanonCheck; | |||
3973 | DependentSizedExtVectorTypes.InsertNode(New, InsertPos); | |||
3974 | } else { | |||
3975 | QualType CanonExtTy = getDependentSizedExtVectorType(CanonVecTy, SizeExpr, | |||
3976 | SourceLocation()); | |||
3977 | New = new (*this, TypeAlignment) DependentSizedExtVectorType( | |||
3978 | *this, vecType, CanonExtTy, SizeExpr, AttrLoc); | |||
3979 | } | |||
3980 | } | |||
3981 | ||||
3982 | Types.push_back(New); | |||
3983 | return QualType(New, 0); | |||
3984 | } | |||
3985 | ||||
3986 | QualType ASTContext::getConstantMatrixType(QualType ElementTy, unsigned NumRows, | |||
3987 | unsigned NumColumns) const { | |||
3988 | llvm::FoldingSetNodeID ID; | |||
3989 | ConstantMatrixType::Profile(ID, ElementTy, NumRows, NumColumns, | |||
3990 | Type::ConstantMatrix); | |||
3991 | ||||
3992 | assert(MatrixType::isValidElementType(ElementTy) &&((MatrixType::isValidElementType(ElementTy) && "need a valid element type" ) ? static_cast<void> (0) : __assert_fail ("MatrixType::isValidElementType(ElementTy) && \"need a valid element type\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 3993, __PRETTY_FUNCTION__)) | |||
3993 | "need a valid element type")((MatrixType::isValidElementType(ElementTy) && "need a valid element type" ) ? static_cast<void> (0) : __assert_fail ("MatrixType::isValidElementType(ElementTy) && \"need a valid element type\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 3993, __PRETTY_FUNCTION__)); | |||
3994 | assert(ConstantMatrixType::isDimensionValid(NumRows) &&((ConstantMatrixType::isDimensionValid(NumRows) && ConstantMatrixType ::isDimensionValid(NumColumns) && "need valid matrix dimensions" ) ? static_cast<void> (0) : __assert_fail ("ConstantMatrixType::isDimensionValid(NumRows) && ConstantMatrixType::isDimensionValid(NumColumns) && \"need valid matrix dimensions\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 3996, __PRETTY_FUNCTION__)) | |||
3995 | ConstantMatrixType::isDimensionValid(NumColumns) &&((ConstantMatrixType::isDimensionValid(NumRows) && ConstantMatrixType ::isDimensionValid(NumColumns) && "need valid matrix dimensions" ) ? static_cast<void> (0) : __assert_fail ("ConstantMatrixType::isDimensionValid(NumRows) && ConstantMatrixType::isDimensionValid(NumColumns) && \"need valid matrix dimensions\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 3996, __PRETTY_FUNCTION__)) | |||
3996 | "need valid matrix dimensions")((ConstantMatrixType::isDimensionValid(NumRows) && ConstantMatrixType ::isDimensionValid(NumColumns) && "need valid matrix dimensions" ) ? static_cast<void> (0) : __assert_fail ("ConstantMatrixType::isDimensionValid(NumRows) && ConstantMatrixType::isDimensionValid(NumColumns) && \"need valid matrix dimensions\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 3996, __PRETTY_FUNCTION__)); | |||
3997 | void *InsertPos = nullptr; | |||
3998 | if (ConstantMatrixType *MTP = MatrixTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
3999 | return QualType(MTP, 0); | |||
4000 | ||||
4001 | QualType Canonical; | |||
4002 | if (!ElementTy.isCanonical()) { | |||
4003 | Canonical = | |||
4004 | getConstantMatrixType(getCanonicalType(ElementTy), NumRows, NumColumns); | |||
4005 | ||||
4006 | ConstantMatrixType *NewIP = MatrixTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
4007 | assert(!NewIP && "Matrix type shouldn't already exist in the map")((!NewIP && "Matrix type shouldn't already exist in the map" ) ? static_cast<void> (0) : __assert_fail ("!NewIP && \"Matrix type shouldn't already exist in the map\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 4007, __PRETTY_FUNCTION__)); | |||
4008 | (void)NewIP; | |||
4009 | } | |||
4010 | ||||
4011 | auto *New = new (*this, TypeAlignment) | |||
4012 | ConstantMatrixType(ElementTy, NumRows, NumColumns, Canonical); | |||
4013 | MatrixTypes.InsertNode(New, InsertPos); | |||
4014 | Types.push_back(New); | |||
4015 | return QualType(New, 0); | |||
4016 | } | |||
4017 | ||||
4018 | QualType ASTContext::getDependentSizedMatrixType(QualType ElementTy, | |||
4019 | Expr *RowExpr, | |||
4020 | Expr *ColumnExpr, | |||
4021 | SourceLocation AttrLoc) const { | |||
4022 | QualType CanonElementTy = getCanonicalType(ElementTy); | |||
4023 | llvm::FoldingSetNodeID ID; | |||
4024 | DependentSizedMatrixType::Profile(ID, *this, CanonElementTy, RowExpr, | |||
4025 | ColumnExpr); | |||
4026 | ||||
4027 | void *InsertPos = nullptr; | |||
4028 | DependentSizedMatrixType *Canon = | |||
4029 | DependentSizedMatrixTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
4030 | ||||
4031 | if (!Canon) { | |||
4032 | Canon = new (*this, TypeAlignment) DependentSizedMatrixType( | |||
4033 | *this, CanonElementTy, QualType(), RowExpr, ColumnExpr, AttrLoc); | |||
4034 | #ifndef NDEBUG | |||
4035 | DependentSizedMatrixType *CanonCheck = | |||
4036 | DependentSizedMatrixTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
4037 | assert(!CanonCheck && "Dependent-sized matrix canonical type broken")((!CanonCheck && "Dependent-sized matrix canonical type broken" ) ? static_cast<void> (0) : __assert_fail ("!CanonCheck && \"Dependent-sized matrix canonical type broken\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 4037, __PRETTY_FUNCTION__)); | |||
4038 | #endif | |||
4039 | DependentSizedMatrixTypes.InsertNode(Canon, InsertPos); | |||
4040 | Types.push_back(Canon); | |||
4041 | } | |||
4042 | ||||
4043 | // Already have a canonical version of the matrix type | |||
4044 | // | |||
4045 | // If it exactly matches the requested type, use it directly. | |||
4046 | if (Canon->getElementType() == ElementTy && Canon->getRowExpr() == RowExpr && | |||
4047 | Canon->getRowExpr() == ColumnExpr) | |||
4048 | return QualType(Canon, 0); | |||
4049 | ||||
4050 | // Use Canon as the canonical type for newly-built type. | |||
4051 | DependentSizedMatrixType *New = new (*this, TypeAlignment) | |||
4052 | DependentSizedMatrixType(*this, ElementTy, QualType(Canon, 0), RowExpr, | |||
4053 | ColumnExpr, AttrLoc); | |||
4054 | Types.push_back(New); | |||
4055 | return QualType(New, 0); | |||
4056 | } | |||
4057 | ||||
4058 | QualType ASTContext::getDependentAddressSpaceType(QualType PointeeType, | |||
4059 | Expr *AddrSpaceExpr, | |||
4060 | SourceLocation AttrLoc) const { | |||
4061 | assert(AddrSpaceExpr->isInstantiationDependent())((AddrSpaceExpr->isInstantiationDependent()) ? static_cast <void> (0) : __assert_fail ("AddrSpaceExpr->isInstantiationDependent()" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 4061, __PRETTY_FUNCTION__)); | |||
4062 | ||||
4063 | QualType canonPointeeType = getCanonicalType(PointeeType); | |||
4064 | ||||
4065 | void *insertPos = nullptr; | |||
4066 | llvm::FoldingSetNodeID ID; | |||
4067 | DependentAddressSpaceType::Profile(ID, *this, canonPointeeType, | |||
4068 | AddrSpaceExpr); | |||
4069 | ||||
4070 | DependentAddressSpaceType *canonTy = | |||
4071 | DependentAddressSpaceTypes.FindNodeOrInsertPos(ID, insertPos); | |||
4072 | ||||
4073 | if (!canonTy) { | |||
4074 | canonTy = new (*this, TypeAlignment) | |||
4075 | DependentAddressSpaceType(*this, canonPointeeType, | |||
4076 | QualType(), AddrSpaceExpr, AttrLoc); | |||
4077 | DependentAddressSpaceTypes.InsertNode(canonTy, insertPos); | |||
4078 | Types.push_back(canonTy); | |||
4079 | } | |||
4080 | ||||
4081 | if (canonPointeeType == PointeeType && | |||
4082 | canonTy->getAddrSpaceExpr() == AddrSpaceExpr) | |||
4083 | return QualType(canonTy, 0); | |||
4084 | ||||
4085 | auto *sugaredType | |||
4086 | = new (*this, TypeAlignment) | |||
4087 | DependentAddressSpaceType(*this, PointeeType, QualType(canonTy, 0), | |||
4088 | AddrSpaceExpr, AttrLoc); | |||
4089 | Types.push_back(sugaredType); | |||
4090 | return QualType(sugaredType, 0); | |||
4091 | } | |||
4092 | ||||
4093 | /// Determine whether \p T is canonical as the result type of a function. | |||
4094 | static bool isCanonicalResultType(QualType T) { | |||
4095 | return T.isCanonical() && | |||
4096 | (T.getObjCLifetime() == Qualifiers::OCL_None || | |||
4097 | T.getObjCLifetime() == Qualifiers::OCL_ExplicitNone); | |||
4098 | } | |||
4099 | ||||
4100 | /// getFunctionNoProtoType - Return a K&R style C function type like 'int()'. | |||
4101 | QualType | |||
4102 | ASTContext::getFunctionNoProtoType(QualType ResultTy, | |||
4103 | const FunctionType::ExtInfo &Info) const { | |||
4104 | // Unique functions, to guarantee there is only one function of a particular | |||
4105 | // structure. | |||
4106 | llvm::FoldingSetNodeID ID; | |||
4107 | FunctionNoProtoType::Profile(ID, ResultTy, Info); | |||
4108 | ||||
4109 | void *InsertPos = nullptr; | |||
4110 | if (FunctionNoProtoType *FT = | |||
4111 | FunctionNoProtoTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
4112 | return QualType(FT, 0); | |||
4113 | ||||
4114 | QualType Canonical; | |||
4115 | if (!isCanonicalResultType(ResultTy)) { | |||
4116 | Canonical = | |||
4117 | getFunctionNoProtoType(getCanonicalFunctionResultType(ResultTy), Info); | |||
4118 | ||||
4119 | // Get the new insert position for the node we care about. | |||
4120 | FunctionNoProtoType *NewIP = | |||
4121 | FunctionNoProtoTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
4122 | assert(!NewIP && "Shouldn't be in the map!")((!NewIP && "Shouldn't be in the map!") ? static_cast <void> (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 4122, __PRETTY_FUNCTION__)); (void)NewIP; | |||
4123 | } | |||
4124 | ||||
4125 | auto *New = new (*this, TypeAlignment) | |||
4126 | FunctionNoProtoType(ResultTy, Canonical, Info); | |||
4127 | Types.push_back(New); | |||
4128 | FunctionNoProtoTypes.InsertNode(New, InsertPos); | |||
4129 | return QualType(New, 0); | |||
4130 | } | |||
4131 | ||||
4132 | CanQualType | |||
4133 | ASTContext::getCanonicalFunctionResultType(QualType ResultType) const { | |||
4134 | CanQualType CanResultType = getCanonicalType(ResultType); | |||
4135 | ||||
4136 | // Canonical result types do not have ARC lifetime qualifiers. | |||
4137 | if (CanResultType.getQualifiers().hasObjCLifetime()) { | |||
4138 | Qualifiers Qs = CanResultType.getQualifiers(); | |||
4139 | Qs.removeObjCLifetime(); | |||
4140 | return CanQualType::CreateUnsafe( | |||
4141 | getQualifiedType(CanResultType.getUnqualifiedType(), Qs)); | |||
4142 | } | |||
4143 | ||||
4144 | return CanResultType; | |||
4145 | } | |||
4146 | ||||
4147 | static bool isCanonicalExceptionSpecification( | |||
4148 | const FunctionProtoType::ExceptionSpecInfo &ESI, bool NoexceptInType) { | |||
4149 | if (ESI.Type == EST_None) | |||
4150 | return true; | |||
4151 | if (!NoexceptInType) | |||
4152 | return false; | |||
4153 | ||||
4154 | // C++17 onwards: exception specification is part of the type, as a simple | |||
4155 | // boolean "can this function type throw". | |||
4156 | if (ESI.Type == EST_BasicNoexcept) | |||
4157 | return true; | |||
4158 | ||||
4159 | // A noexcept(expr) specification is (possibly) canonical if expr is | |||
4160 | // value-dependent. | |||
4161 | if (ESI.Type == EST_DependentNoexcept) | |||
4162 | return true; | |||
4163 | ||||
4164 | // A dynamic exception specification is canonical if it only contains pack | |||
4165 | // expansions (so we can't tell whether it's non-throwing) and all its | |||
4166 | // contained types are canonical. | |||
4167 | if (ESI.Type == EST_Dynamic) { | |||
4168 | bool AnyPackExpansions = false; | |||
4169 | for (QualType ET : ESI.Exceptions) { | |||
4170 | if (!ET.isCanonical()) | |||
4171 | return false; | |||
4172 | if (ET->getAs<PackExpansionType>()) | |||
4173 | AnyPackExpansions = true; | |||
4174 | } | |||
4175 | return AnyPackExpansions; | |||
4176 | } | |||
4177 | ||||
4178 | return false; | |||
4179 | } | |||
4180 | ||||
4181 | QualType ASTContext::getFunctionTypeInternal( | |||
4182 | QualType ResultTy, ArrayRef<QualType> ArgArray, | |||
4183 | const FunctionProtoType::ExtProtoInfo &EPI, bool OnlyWantCanonical) const { | |||
4184 | size_t NumArgs = ArgArray.size(); | |||
4185 | ||||
4186 | // Unique functions, to guarantee there is only one function of a particular | |||
4187 | // structure. | |||
4188 | llvm::FoldingSetNodeID ID; | |||
4189 | FunctionProtoType::Profile(ID, ResultTy, ArgArray.begin(), NumArgs, EPI, | |||
4190 | *this, true); | |||
4191 | ||||
4192 | QualType Canonical; | |||
4193 | bool Unique = false; | |||
4194 | ||||
4195 | void *InsertPos = nullptr; | |||
4196 | if (FunctionProtoType *FPT = | |||
4197 | FunctionProtoTypes.FindNodeOrInsertPos(ID, InsertPos)) { | |||
4198 | QualType Existing = QualType(FPT, 0); | |||
4199 | ||||
4200 | // If we find a pre-existing equivalent FunctionProtoType, we can just reuse | |||
4201 | // it so long as our exception specification doesn't contain a dependent | |||
4202 | // noexcept expression, or we're just looking for a canonical type. | |||
4203 | // Otherwise, we're going to need to create a type | |||
4204 | // sugar node to hold the concrete expression. | |||
4205 | if (OnlyWantCanonical || !isComputedNoexcept(EPI.ExceptionSpec.Type) || | |||
4206 | EPI.ExceptionSpec.NoexceptExpr == FPT->getNoexceptExpr()) | |||
4207 | return Existing; | |||
4208 | ||||
4209 | // We need a new type sugar node for this one, to hold the new noexcept | |||
4210 | // expression. We do no canonicalization here, but that's OK since we don't | |||
4211 | // expect to see the same noexcept expression much more than once. | |||
4212 | Canonical = getCanonicalType(Existing); | |||
4213 | Unique = true; | |||
4214 | } | |||
4215 | ||||
4216 | bool NoexceptInType = getLangOpts().CPlusPlus17; | |||
4217 | bool IsCanonicalExceptionSpec = | |||
4218 | isCanonicalExceptionSpecification(EPI.ExceptionSpec, NoexceptInType); | |||
4219 | ||||
4220 | // Determine whether the type being created is already canonical or not. | |||
4221 | bool isCanonical = !Unique && IsCanonicalExceptionSpec && | |||
4222 | isCanonicalResultType(ResultTy) && !EPI.HasTrailingReturn; | |||
4223 | for (unsigned i = 0; i != NumArgs && isCanonical; ++i) | |||
4224 | if (!ArgArray[i].isCanonicalAsParam()) | |||
4225 | isCanonical = false; | |||
4226 | ||||
4227 | if (OnlyWantCanonical) | |||
4228 | assert(isCanonical &&((isCanonical && "given non-canonical parameters constructing canonical type" ) ? static_cast<void> (0) : __assert_fail ("isCanonical && \"given non-canonical parameters constructing canonical type\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 4229, __PRETTY_FUNCTION__)) | |||
4229 | "given non-canonical parameters constructing canonical type")((isCanonical && "given non-canonical parameters constructing canonical type" ) ? static_cast<void> (0) : __assert_fail ("isCanonical && \"given non-canonical parameters constructing canonical type\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 4229, __PRETTY_FUNCTION__)); | |||
4230 | ||||
4231 | // If this type isn't canonical, get the canonical version of it if we don't | |||
4232 | // already have it. The exception spec is only partially part of the | |||
4233 | // canonical type, and only in C++17 onwards. | |||
4234 | if (!isCanonical && Canonical.isNull()) { | |||
4235 | SmallVector<QualType, 16> CanonicalArgs; | |||
4236 | CanonicalArgs.reserve(NumArgs); | |||
4237 | for (unsigned i = 0; i != NumArgs; ++i) | |||
4238 | CanonicalArgs.push_back(getCanonicalParamType(ArgArray[i])); | |||
4239 | ||||
4240 | llvm::SmallVector<QualType, 8> ExceptionTypeStorage; | |||
4241 | FunctionProtoType::ExtProtoInfo CanonicalEPI = EPI; | |||
4242 | CanonicalEPI.HasTrailingReturn = false; | |||
4243 | ||||
4244 | if (IsCanonicalExceptionSpec) { | |||
4245 | // Exception spec is already OK. | |||
4246 | } else if (NoexceptInType) { | |||
4247 | switch (EPI.ExceptionSpec.Type) { | |||
4248 | case EST_Unparsed: case EST_Unevaluated: case EST_Uninstantiated: | |||
4249 | // We don't know yet. It shouldn't matter what we pick here; no-one | |||
4250 | // should ever look at this. | |||
4251 | LLVM_FALLTHROUGH[[gnu::fallthrough]]; | |||
4252 | case EST_None: case EST_MSAny: case EST_NoexceptFalse: | |||
4253 | CanonicalEPI.ExceptionSpec.Type = EST_None; | |||
4254 | break; | |||
4255 | ||||
4256 | // A dynamic exception specification is almost always "not noexcept", | |||
4257 | // with the exception that a pack expansion might expand to no types. | |||
4258 | case EST_Dynamic: { | |||
4259 | bool AnyPacks = false; | |||
4260 | for (QualType ET : EPI.ExceptionSpec.Exceptions) { | |||
4261 | if (ET->getAs<PackExpansionType>()) | |||
4262 | AnyPacks = true; | |||
4263 | ExceptionTypeStorage.push_back(getCanonicalType(ET)); | |||
4264 | } | |||
4265 | if (!AnyPacks) | |||
4266 | CanonicalEPI.ExceptionSpec.Type = EST_None; | |||
4267 | else { | |||
4268 | CanonicalEPI.ExceptionSpec.Type = EST_Dynamic; | |||
4269 | CanonicalEPI.ExceptionSpec.Exceptions = ExceptionTypeStorage; | |||
4270 | } | |||
4271 | break; | |||
4272 | } | |||
4273 | ||||
4274 | case EST_DynamicNone: | |||
4275 | case EST_BasicNoexcept: | |||
4276 | case EST_NoexceptTrue: | |||
4277 | case EST_NoThrow: | |||
4278 | CanonicalEPI.ExceptionSpec.Type = EST_BasicNoexcept; | |||
4279 | break; | |||
4280 | ||||
4281 | case EST_DependentNoexcept: | |||
4282 | llvm_unreachable("dependent noexcept is already canonical")::llvm::llvm_unreachable_internal("dependent noexcept is already canonical" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 4282); | |||
4283 | } | |||
4284 | } else { | |||
4285 | CanonicalEPI.ExceptionSpec = FunctionProtoType::ExceptionSpecInfo(); | |||
4286 | } | |||
4287 | ||||
4288 | // Adjust the canonical function result type. | |||
4289 | CanQualType CanResultTy = getCanonicalFunctionResultType(ResultTy); | |||
4290 | Canonical = | |||
4291 | getFunctionTypeInternal(CanResultTy, CanonicalArgs, CanonicalEPI, true); | |||
4292 | ||||
4293 | // Get the new insert position for the node we care about. | |||
4294 | FunctionProtoType *NewIP = | |||
4295 | FunctionProtoTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
4296 | assert(!NewIP && "Shouldn't be in the map!")((!NewIP && "Shouldn't be in the map!") ? static_cast <void> (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 4296, __PRETTY_FUNCTION__)); (void)NewIP; | |||
4297 | } | |||
4298 | ||||
4299 | // Compute the needed size to hold this FunctionProtoType and the | |||
4300 | // various trailing objects. | |||
4301 | auto ESH = FunctionProtoType::getExceptionSpecSize( | |||
4302 | EPI.ExceptionSpec.Type, EPI.ExceptionSpec.Exceptions.size()); | |||
4303 | size_t Size = FunctionProtoType::totalSizeToAlloc< | |||
4304 | QualType, SourceLocation, FunctionType::FunctionTypeExtraBitfields, | |||
4305 | FunctionType::ExceptionType, Expr *, FunctionDecl *, | |||
4306 | FunctionProtoType::ExtParameterInfo, Qualifiers>( | |||
4307 | NumArgs, EPI.Variadic, | |||
4308 | FunctionProtoType::hasExtraBitfields(EPI.ExceptionSpec.Type), | |||
4309 | ESH.NumExceptionType, ESH.NumExprPtr, ESH.NumFunctionDeclPtr, | |||
4310 | EPI.ExtParameterInfos ? NumArgs : 0, | |||
4311 | EPI.TypeQuals.hasNonFastQualifiers() ? 1 : 0); | |||
4312 | ||||
4313 | auto *FTP = (FunctionProtoType *)Allocate(Size, TypeAlignment); | |||
4314 | FunctionProtoType::ExtProtoInfo newEPI = EPI; | |||
4315 | new (FTP) FunctionProtoType(ResultTy, ArgArray, Canonical, newEPI); | |||
4316 | Types.push_back(FTP); | |||
4317 | if (!Unique) | |||
4318 | FunctionProtoTypes.InsertNode(FTP, InsertPos); | |||
4319 | return QualType(FTP, 0); | |||
4320 | } | |||
4321 | ||||
4322 | QualType ASTContext::getPipeType(QualType T, bool ReadOnly) const { | |||
4323 | llvm::FoldingSetNodeID ID; | |||
4324 | PipeType::Profile(ID, T, ReadOnly); | |||
4325 | ||||
4326 | void *InsertPos = nullptr; | |||
4327 | if (PipeType *PT = PipeTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
4328 | return QualType(PT, 0); | |||
4329 | ||||
4330 | // If the pipe element type isn't canonical, this won't be a canonical type | |||
4331 | // either, so fill in the canonical type field. | |||
4332 | QualType Canonical; | |||
4333 | if (!T.isCanonical()) { | |||
4334 | Canonical = getPipeType(getCanonicalType(T), ReadOnly); | |||
4335 | ||||
4336 | // Get the new insert position for the node we care about. | |||
4337 | PipeType *NewIP = PipeTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
4338 | assert(!NewIP && "Shouldn't be in the map!")((!NewIP && "Shouldn't be in the map!") ? static_cast <void> (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 4338, __PRETTY_FUNCTION__)); | |||
4339 | (void)NewIP; | |||
4340 | } | |||
4341 | auto *New = new (*this, TypeAlignment) PipeType(T, Canonical, ReadOnly); | |||
4342 | Types.push_back(New); | |||
4343 | PipeTypes.InsertNode(New, InsertPos); | |||
4344 | return QualType(New, 0); | |||
4345 | } | |||
4346 | ||||
4347 | QualType ASTContext::adjustStringLiteralBaseType(QualType Ty) const { | |||
4348 | // OpenCL v1.1 s6.5.3: a string literal is in the constant address space. | |||
4349 | return LangOpts.OpenCL ? getAddrSpaceQualType(Ty, LangAS::opencl_constant) | |||
4350 | : Ty; | |||
4351 | } | |||
4352 | ||||
4353 | QualType ASTContext::getReadPipeType(QualType T) const { | |||
4354 | return getPipeType(T, true); | |||
4355 | } | |||
4356 | ||||
4357 | QualType ASTContext::getWritePipeType(QualType T) const { | |||
4358 | return getPipeType(T, false); | |||
4359 | } | |||
4360 | ||||
4361 | QualType ASTContext::getExtIntType(bool IsUnsigned, unsigned NumBits) const { | |||
4362 | llvm::FoldingSetNodeID ID; | |||
4363 | ExtIntType::Profile(ID, IsUnsigned, NumBits); | |||
4364 | ||||
4365 | void *InsertPos = nullptr; | |||
4366 | if (ExtIntType *EIT = ExtIntTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
4367 | return QualType(EIT, 0); | |||
4368 | ||||
4369 | auto *New = new (*this, TypeAlignment) ExtIntType(IsUnsigned, NumBits); | |||
4370 | ExtIntTypes.InsertNode(New, InsertPos); | |||
4371 | Types.push_back(New); | |||
4372 | return QualType(New, 0); | |||
4373 | } | |||
4374 | ||||
4375 | QualType ASTContext::getDependentExtIntType(bool IsUnsigned, | |||
4376 | Expr *NumBitsExpr) const { | |||
4377 | assert(NumBitsExpr->isInstantiationDependent() && "Only good for dependent")((NumBitsExpr->isInstantiationDependent() && "Only good for dependent" ) ? static_cast<void> (0) : __assert_fail ("NumBitsExpr->isInstantiationDependent() && \"Only good for dependent\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 4377, __PRETTY_FUNCTION__)); | |||
4378 | llvm::FoldingSetNodeID ID; | |||
4379 | DependentExtIntType::Profile(ID, *this, IsUnsigned, NumBitsExpr); | |||
4380 | ||||
4381 | void *InsertPos = nullptr; | |||
4382 | if (DependentExtIntType *Existing = | |||
4383 | DependentExtIntTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
4384 | return QualType(Existing, 0); | |||
4385 | ||||
4386 | auto *New = new (*this, TypeAlignment) | |||
4387 | DependentExtIntType(*this, IsUnsigned, NumBitsExpr); | |||
4388 | DependentExtIntTypes.InsertNode(New, InsertPos); | |||
4389 | ||||
4390 | Types.push_back(New); | |||
4391 | return QualType(New, 0); | |||
4392 | } | |||
4393 | ||||
4394 | #ifndef NDEBUG | |||
4395 | static bool NeedsInjectedClassNameType(const RecordDecl *D) { | |||
4396 | if (!isa<CXXRecordDecl>(D)) return false; | |||
4397 | const auto *RD = cast<CXXRecordDecl>(D); | |||
4398 | if (isa<ClassTemplatePartialSpecializationDecl>(RD)) | |||
4399 | return true; | |||
4400 | if (RD->getDescribedClassTemplate() && | |||
4401 | !isa<ClassTemplateSpecializationDecl>(RD)) | |||
4402 | return true; | |||
4403 | return false; | |||
4404 | } | |||
4405 | #endif | |||
4406 | ||||
4407 | /// getInjectedClassNameType - Return the unique reference to the | |||
4408 | /// injected class name type for the specified templated declaration. | |||
4409 | QualType ASTContext::getInjectedClassNameType(CXXRecordDecl *Decl, | |||
4410 | QualType TST) const { | |||
4411 | assert(NeedsInjectedClassNameType(Decl))((NeedsInjectedClassNameType(Decl)) ? static_cast<void> (0) : __assert_fail ("NeedsInjectedClassNameType(Decl)", "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 4411, __PRETTY_FUNCTION__)); | |||
4412 | if (Decl->TypeForDecl) { | |||
4413 | assert(isa<InjectedClassNameType>(Decl->TypeForDecl))((isa<InjectedClassNameType>(Decl->TypeForDecl)) ? static_cast <void> (0) : __assert_fail ("isa<InjectedClassNameType>(Decl->TypeForDecl)" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 4413, __PRETTY_FUNCTION__)); | |||
4414 | } else if (CXXRecordDecl *PrevDecl = Decl->getPreviousDecl()) { | |||
4415 | assert(PrevDecl->TypeForDecl && "previous declaration has no type")((PrevDecl->TypeForDecl && "previous declaration has no type" ) ? static_cast<void> (0) : __assert_fail ("PrevDecl->TypeForDecl && \"previous declaration has no type\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 4415, __PRETTY_FUNCTION__)); | |||
4416 | Decl->TypeForDecl = PrevDecl->TypeForDecl; | |||
4417 | assert(isa<InjectedClassNameType>(Decl->TypeForDecl))((isa<InjectedClassNameType>(Decl->TypeForDecl)) ? static_cast <void> (0) : __assert_fail ("isa<InjectedClassNameType>(Decl->TypeForDecl)" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 4417, __PRETTY_FUNCTION__)); | |||
4418 | } else { | |||
4419 | Type *newType = | |||
4420 | new (*this, TypeAlignment) InjectedClassNameType(Decl, TST); | |||
4421 | Decl->TypeForDecl = newType; | |||
4422 | Types.push_back(newType); | |||
4423 | } | |||
4424 | return QualType(Decl->TypeForDecl, 0); | |||
4425 | } | |||
4426 | ||||
4427 | /// getTypeDeclType - Return the unique reference to the type for the | |||
4428 | /// specified type declaration. | |||
4429 | QualType ASTContext::getTypeDeclTypeSlow(const TypeDecl *Decl) const { | |||
4430 | assert(Decl && "Passed null for Decl param")((Decl && "Passed null for Decl param") ? static_cast <void> (0) : __assert_fail ("Decl && \"Passed null for Decl param\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 4430, __PRETTY_FUNCTION__)); | |||
4431 | assert(!Decl->TypeForDecl && "TypeForDecl present in slow case")((!Decl->TypeForDecl && "TypeForDecl present in slow case" ) ? static_cast<void> (0) : __assert_fail ("!Decl->TypeForDecl && \"TypeForDecl present in slow case\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 4431, __PRETTY_FUNCTION__)); | |||
4432 | ||||
4433 | if (const auto *Typedef = dyn_cast<TypedefNameDecl>(Decl)) | |||
4434 | return getTypedefType(Typedef); | |||
4435 | ||||
4436 | assert(!isa<TemplateTypeParmDecl>(Decl) &&((!isa<TemplateTypeParmDecl>(Decl) && "Template type parameter types are always available." ) ? static_cast<void> (0) : __assert_fail ("!isa<TemplateTypeParmDecl>(Decl) && \"Template type parameter types are always available.\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 4437, __PRETTY_FUNCTION__)) | |||
4437 | "Template type parameter types are always available.")((!isa<TemplateTypeParmDecl>(Decl) && "Template type parameter types are always available." ) ? static_cast<void> (0) : __assert_fail ("!isa<TemplateTypeParmDecl>(Decl) && \"Template type parameter types are always available.\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 4437, __PRETTY_FUNCTION__)); | |||
4438 | ||||
4439 | if (const auto *Record = dyn_cast<RecordDecl>(Decl)) { | |||
4440 | assert(Record->isFirstDecl() && "struct/union has previous declaration")((Record->isFirstDecl() && "struct/union has previous declaration" ) ? static_cast<void> (0) : __assert_fail ("Record->isFirstDecl() && \"struct/union has previous declaration\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 4440, __PRETTY_FUNCTION__)); | |||
4441 | assert(!NeedsInjectedClassNameType(Record))((!NeedsInjectedClassNameType(Record)) ? static_cast<void> (0) : __assert_fail ("!NeedsInjectedClassNameType(Record)", "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 4441, __PRETTY_FUNCTION__)); | |||
4442 | return getRecordType(Record); | |||
4443 | } else if (const auto *Enum = dyn_cast<EnumDecl>(Decl)) { | |||
4444 | assert(Enum->isFirstDecl() && "enum has previous declaration")((Enum->isFirstDecl() && "enum has previous declaration" ) ? static_cast<void> (0) : __assert_fail ("Enum->isFirstDecl() && \"enum has previous declaration\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 4444, __PRETTY_FUNCTION__)); | |||
4445 | return getEnumType(Enum); | |||
4446 | } else if (const auto *Using = dyn_cast<UnresolvedUsingTypenameDecl>(Decl)) { | |||
4447 | Type *newType = new (*this, TypeAlignment) UnresolvedUsingType(Using); | |||
4448 | Decl->TypeForDecl = newType; | |||
4449 | Types.push_back(newType); | |||
4450 | } else | |||
4451 | llvm_unreachable("TypeDecl without a type?")::llvm::llvm_unreachable_internal("TypeDecl without a type?", "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 4451); | |||
4452 | ||||
4453 | return QualType(Decl->TypeForDecl, 0); | |||
4454 | } | |||
4455 | ||||
4456 | /// getTypedefType - Return the unique reference to the type for the | |||
4457 | /// specified typedef name decl. | |||
4458 | QualType ASTContext::getTypedefType(const TypedefNameDecl *Decl, | |||
4459 | QualType Underlying) const { | |||
4460 | if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); | |||
4461 | ||||
4462 | if (Underlying.isNull()) | |||
4463 | Underlying = Decl->getUnderlyingType(); | |||
4464 | QualType Canonical = getCanonicalType(Underlying); | |||
4465 | auto *newType = new (*this, TypeAlignment) | |||
4466 | TypedefType(Type::Typedef, Decl, Underlying, Canonical); | |||
4467 | Decl->TypeForDecl = newType; | |||
4468 | Types.push_back(newType); | |||
4469 | return QualType(newType, 0); | |||
4470 | } | |||
4471 | ||||
4472 | QualType ASTContext::getRecordType(const RecordDecl *Decl) const { | |||
4473 | if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); | |||
4474 | ||||
4475 | if (const RecordDecl *PrevDecl = Decl->getPreviousDecl()) | |||
4476 | if (PrevDecl->TypeForDecl) | |||
4477 | return QualType(Decl->TypeForDecl = PrevDecl->TypeForDecl, 0); | |||
4478 | ||||
4479 | auto *newType = new (*this, TypeAlignment) RecordType(Decl); | |||
4480 | Decl->TypeForDecl = newType; | |||
4481 | Types.push_back(newType); | |||
4482 | return QualType(newType, 0); | |||
4483 | } | |||
4484 | ||||
4485 | QualType ASTContext::getEnumType(const EnumDecl *Decl) const { | |||
4486 | if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); | |||
4487 | ||||
4488 | if (const EnumDecl *PrevDecl = Decl->getPreviousDecl()) | |||
4489 | if (PrevDecl->TypeForDecl) | |||
4490 | return QualType(Decl->TypeForDecl = PrevDecl->TypeForDecl, 0); | |||
4491 | ||||
4492 | auto *newType = new (*this, TypeAlignment) EnumType(Decl); | |||
4493 | Decl->TypeForDecl = newType; | |||
4494 | Types.push_back(newType); | |||
4495 | return QualType(newType, 0); | |||
4496 | } | |||
4497 | ||||
4498 | QualType ASTContext::getAttributedType(attr::Kind attrKind, | |||
4499 | QualType modifiedType, | |||
4500 | QualType equivalentType) { | |||
4501 | llvm::FoldingSetNodeID id; | |||
4502 | AttributedType::Profile(id, attrKind, modifiedType, equivalentType); | |||
4503 | ||||
4504 | void *insertPos = nullptr; | |||
4505 | AttributedType *type = AttributedTypes.FindNodeOrInsertPos(id, insertPos); | |||
4506 | if (type) return QualType(type, 0); | |||
4507 | ||||
4508 | QualType canon = getCanonicalType(equivalentType); | |||
4509 | type = new (*this, TypeAlignment) | |||
4510 | AttributedType(canon, attrKind, modifiedType, equivalentType); | |||
4511 | ||||
4512 | Types.push_back(type); | |||
4513 | AttributedTypes.InsertNode(type, insertPos); | |||
4514 | ||||
4515 | return QualType(type, 0); | |||
4516 | } | |||
4517 | ||||
4518 | /// Retrieve a substitution-result type. | |||
4519 | QualType | |||
4520 | ASTContext::getSubstTemplateTypeParmType(const TemplateTypeParmType *Parm, | |||
4521 | QualType Replacement) const { | |||
4522 | assert(Replacement.isCanonical()((Replacement.isCanonical() && "replacement types must always be canonical" ) ? static_cast<void> (0) : __assert_fail ("Replacement.isCanonical() && \"replacement types must always be canonical\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 4523, __PRETTY_FUNCTION__)) | |||
4523 | && "replacement types must always be canonical")((Replacement.isCanonical() && "replacement types must always be canonical" ) ? static_cast<void> (0) : __assert_fail ("Replacement.isCanonical() && \"replacement types must always be canonical\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 4523, __PRETTY_FUNCTION__)); | |||
4524 | ||||
4525 | llvm::FoldingSetNodeID ID; | |||
4526 | SubstTemplateTypeParmType::Profile(ID, Parm, Replacement); | |||
4527 | void *InsertPos = nullptr; | |||
4528 | SubstTemplateTypeParmType *SubstParm | |||
4529 | = SubstTemplateTypeParmTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
4530 | ||||
4531 | if (!SubstParm) { | |||
4532 | SubstParm = new (*this, TypeAlignment) | |||
4533 | SubstTemplateTypeParmType(Parm, Replacement); | |||
4534 | Types.push_back(SubstParm); | |||
4535 | SubstTemplateTypeParmTypes.InsertNode(SubstParm, InsertPos); | |||
4536 | } | |||
4537 | ||||
4538 | return QualType(SubstParm, 0); | |||
4539 | } | |||
4540 | ||||
4541 | /// Retrieve a | |||
4542 | QualType ASTContext::getSubstTemplateTypeParmPackType( | |||
4543 | const TemplateTypeParmType *Parm, | |||
4544 | const TemplateArgument &ArgPack) { | |||
4545 | #ifndef NDEBUG | |||
4546 | for (const auto &P : ArgPack.pack_elements()) { | |||
4547 | assert(P.getKind() == TemplateArgument::Type &&"Pack contains a non-type")((P.getKind() == TemplateArgument::Type &&"Pack contains a non-type" ) ? static_cast<void> (0) : __assert_fail ("P.getKind() == TemplateArgument::Type &&\"Pack contains a non-type\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 4547, __PRETTY_FUNCTION__)); | |||
4548 | assert(P.getAsType().isCanonical() && "Pack contains non-canonical type")((P.getAsType().isCanonical() && "Pack contains non-canonical type" ) ? static_cast<void> (0) : __assert_fail ("P.getAsType().isCanonical() && \"Pack contains non-canonical type\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 4548, __PRETTY_FUNCTION__)); | |||
4549 | } | |||
4550 | #endif | |||
4551 | ||||
4552 | llvm::FoldingSetNodeID ID; | |||
4553 | SubstTemplateTypeParmPackType::Profile(ID, Parm, ArgPack); | |||
4554 | void *InsertPos = nullptr; | |||
4555 | if (SubstTemplateTypeParmPackType *SubstParm | |||
4556 | = SubstTemplateTypeParmPackTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
4557 | return QualType(SubstParm, 0); | |||
4558 | ||||
4559 | QualType Canon; | |||
4560 | if (!Parm->isCanonicalUnqualified()) { | |||
4561 | Canon = getCanonicalType(QualType(Parm, 0)); | |||
4562 | Canon = getSubstTemplateTypeParmPackType(cast<TemplateTypeParmType>(Canon), | |||
4563 | ArgPack); | |||
4564 | SubstTemplateTypeParmPackTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
4565 | } | |||
4566 | ||||
4567 | auto *SubstParm | |||
4568 | = new (*this, TypeAlignment) SubstTemplateTypeParmPackType(Parm, Canon, | |||
4569 | ArgPack); | |||
4570 | Types.push_back(SubstParm); | |||
4571 | SubstTemplateTypeParmPackTypes.InsertNode(SubstParm, InsertPos); | |||
4572 | return QualType(SubstParm, 0); | |||
4573 | } | |||
4574 | ||||
4575 | /// Retrieve the template type parameter type for a template | |||
4576 | /// parameter or parameter pack with the given depth, index, and (optionally) | |||
4577 | /// name. | |||
4578 | QualType ASTContext::getTemplateTypeParmType(unsigned Depth, unsigned Index, | |||
4579 | bool ParameterPack, | |||
4580 | TemplateTypeParmDecl *TTPDecl) const { | |||
4581 | llvm::FoldingSetNodeID ID; | |||
4582 | TemplateTypeParmType::Profile(ID, Depth, Index, ParameterPack, TTPDecl); | |||
4583 | void *InsertPos = nullptr; | |||
4584 | TemplateTypeParmType *TypeParm | |||
4585 | = TemplateTypeParmTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
4586 | ||||
4587 | if (TypeParm) | |||
4588 | return QualType(TypeParm, 0); | |||
4589 | ||||
4590 | if (TTPDecl) { | |||
4591 | QualType Canon = getTemplateTypeParmType(Depth, Index, ParameterPack); | |||
4592 | TypeParm = new (*this, TypeAlignment) TemplateTypeParmType(TTPDecl, Canon); | |||
4593 | ||||
4594 | TemplateTypeParmType *TypeCheck | |||
4595 | = TemplateTypeParmTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
4596 | assert(!TypeCheck && "Template type parameter canonical type broken")((!TypeCheck && "Template type parameter canonical type broken" ) ? static_cast<void> (0) : __assert_fail ("!TypeCheck && \"Template type parameter canonical type broken\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 4596, __PRETTY_FUNCTION__)); | |||
4597 | (void)TypeCheck; | |||
4598 | } else | |||
4599 | TypeParm = new (*this, TypeAlignment) | |||
4600 | TemplateTypeParmType(Depth, Index, ParameterPack); | |||
4601 | ||||
4602 | Types.push_back(TypeParm); | |||
4603 | TemplateTypeParmTypes.InsertNode(TypeParm, InsertPos); | |||
4604 | ||||
4605 | return QualType(TypeParm, 0); | |||
4606 | } | |||
4607 | ||||
4608 | TypeSourceInfo * | |||
4609 | ASTContext::getTemplateSpecializationTypeInfo(TemplateName Name, | |||
4610 | SourceLocation NameLoc, | |||
4611 | const TemplateArgumentListInfo &Args, | |||
4612 | QualType Underlying) const { | |||
4613 | assert(!Name.getAsDependentTemplateName() &&((!Name.getAsDependentTemplateName() && "No dependent template names here!" ) ? static_cast<void> (0) : __assert_fail ("!Name.getAsDependentTemplateName() && \"No dependent template names here!\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 4614, __PRETTY_FUNCTION__)) | |||
4614 | "No dependent template names here!")((!Name.getAsDependentTemplateName() && "No dependent template names here!" ) ? static_cast<void> (0) : __assert_fail ("!Name.getAsDependentTemplateName() && \"No dependent template names here!\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 4614, __PRETTY_FUNCTION__)); | |||
4615 | QualType TST = getTemplateSpecializationType(Name, Args, Underlying); | |||
4616 | ||||
4617 | TypeSourceInfo *DI = CreateTypeSourceInfo(TST); | |||
4618 | TemplateSpecializationTypeLoc TL = | |||
4619 | DI->getTypeLoc().castAs<TemplateSpecializationTypeLoc>(); | |||
4620 | TL.setTemplateKeywordLoc(SourceLocation()); | |||
4621 | TL.setTemplateNameLoc(NameLoc); | |||
4622 | TL.setLAngleLoc(Args.getLAngleLoc()); | |||
4623 | TL.setRAngleLoc(Args.getRAngleLoc()); | |||
4624 | for (unsigned i = 0, e = TL.getNumArgs(); i != e; ++i) | |||
4625 | TL.setArgLocInfo(i, Args[i].getLocInfo()); | |||
4626 | return DI; | |||
4627 | } | |||
4628 | ||||
4629 | QualType | |||
4630 | ASTContext::getTemplateSpecializationType(TemplateName Template, | |||
4631 | const TemplateArgumentListInfo &Args, | |||
4632 | QualType Underlying) const { | |||
4633 | assert(!Template.getAsDependentTemplateName() &&((!Template.getAsDependentTemplateName() && "No dependent template names here!" ) ? static_cast<void> (0) : __assert_fail ("!Template.getAsDependentTemplateName() && \"No dependent template names here!\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 4634, __PRETTY_FUNCTION__)) | |||
4634 | "No dependent template names here!")((!Template.getAsDependentTemplateName() && "No dependent template names here!" ) ? static_cast<void> (0) : __assert_fail ("!Template.getAsDependentTemplateName() && \"No dependent template names here!\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 4634, __PRETTY_FUNCTION__)); | |||
4635 | ||||
4636 | SmallVector<TemplateArgument, 4> ArgVec; | |||
4637 | ArgVec.reserve(Args.size()); | |||
4638 | for (const TemplateArgumentLoc &Arg : Args.arguments()) | |||
4639 | ArgVec.push_back(Arg.getArgument()); | |||
4640 | ||||
4641 | return getTemplateSpecializationType(Template, ArgVec, Underlying); | |||
4642 | } | |||
4643 | ||||
4644 | #ifndef NDEBUG | |||
4645 | static bool hasAnyPackExpansions(ArrayRef<TemplateArgument> Args) { | |||
4646 | for (const TemplateArgument &Arg : Args) | |||
4647 | if (Arg.isPackExpansion()) | |||
4648 | return true; | |||
4649 | ||||
4650 | return true; | |||
4651 | } | |||
4652 | #endif | |||
4653 | ||||
4654 | QualType | |||
4655 | ASTContext::getTemplateSpecializationType(TemplateName Template, | |||
4656 | ArrayRef<TemplateArgument> Args, | |||
4657 | QualType Underlying) const { | |||
4658 | assert(!Template.getAsDependentTemplateName() &&((!Template.getAsDependentTemplateName() && "No dependent template names here!" ) ? static_cast<void> (0) : __assert_fail ("!Template.getAsDependentTemplateName() && \"No dependent template names here!\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 4659, __PRETTY_FUNCTION__)) | |||
4659 | "No dependent template names here!")((!Template.getAsDependentTemplateName() && "No dependent template names here!" ) ? static_cast<void> (0) : __assert_fail ("!Template.getAsDependentTemplateName() && \"No dependent template names here!\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 4659, __PRETTY_FUNCTION__)); | |||
4660 | // Look through qualified template names. | |||
4661 | if (QualifiedTemplateName *QTN = Template.getAsQualifiedTemplateName()) | |||
4662 | Template = TemplateName(QTN->getTemplateDecl()); | |||
4663 | ||||
4664 | bool IsTypeAlias = | |||
4665 | Template.getAsTemplateDecl() && | |||
4666 | isa<TypeAliasTemplateDecl>(Template.getAsTemplateDecl()); | |||
4667 | QualType CanonType; | |||
4668 | if (!Underlying.isNull()) | |||
4669 | CanonType = getCanonicalType(Underlying); | |||
4670 | else { | |||
4671 | // We can get here with an alias template when the specialization contains | |||
4672 | // a pack expansion that does not match up with a parameter pack. | |||
4673 | assert((!IsTypeAlias || hasAnyPackExpansions(Args)) &&(((!IsTypeAlias || hasAnyPackExpansions(Args)) && "Caller must compute aliased type" ) ? static_cast<void> (0) : __assert_fail ("(!IsTypeAlias || hasAnyPackExpansions(Args)) && \"Caller must compute aliased type\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 4674, __PRETTY_FUNCTION__)) | |||
4674 | "Caller must compute aliased type")(((!IsTypeAlias || hasAnyPackExpansions(Args)) && "Caller must compute aliased type" ) ? static_cast<void> (0) : __assert_fail ("(!IsTypeAlias || hasAnyPackExpansions(Args)) && \"Caller must compute aliased type\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 4674, __PRETTY_FUNCTION__)); | |||
4675 | IsTypeAlias = false; | |||
4676 | CanonType = getCanonicalTemplateSpecializationType(Template, Args); | |||
4677 | } | |||
4678 | ||||
4679 | // Allocate the (non-canonical) template specialization type, but don't | |||
4680 | // try to unique it: these types typically have location information that | |||
4681 | // we don't unique and don't want to lose. | |||
4682 | void *Mem = Allocate(sizeof(TemplateSpecializationType) + | |||
4683 | sizeof(TemplateArgument) * Args.size() + | |||
4684 | (IsTypeAlias? sizeof(QualType) : 0), | |||
4685 | TypeAlignment); | |||
4686 | auto *Spec | |||
4687 | = new (Mem) TemplateSpecializationType(Template, Args, CanonType, | |||
4688 | IsTypeAlias ? Underlying : QualType()); | |||
4689 | ||||
4690 | Types.push_back(Spec); | |||
4691 | return QualType(Spec, 0); | |||
4692 | } | |||
4693 | ||||
4694 | QualType ASTContext::getCanonicalTemplateSpecializationType( | |||
4695 | TemplateName Template, ArrayRef<TemplateArgument> Args) const { | |||
4696 | assert(!Template.getAsDependentTemplateName() &&((!Template.getAsDependentTemplateName() && "No dependent template names here!" ) ? static_cast<void> (0) : __assert_fail ("!Template.getAsDependentTemplateName() && \"No dependent template names here!\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 4697, __PRETTY_FUNCTION__)) | |||
4697 | "No dependent template names here!")((!Template.getAsDependentTemplateName() && "No dependent template names here!" ) ? static_cast<void> (0) : __assert_fail ("!Template.getAsDependentTemplateName() && \"No dependent template names here!\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 4697, __PRETTY_FUNCTION__)); | |||
4698 | ||||
4699 | // Look through qualified template names. | |||
4700 | if (QualifiedTemplateName *QTN = Template.getAsQualifiedTemplateName()) | |||
4701 | Template = TemplateName(QTN->getTemplateDecl()); | |||
4702 | ||||
4703 | // Build the canonical template specialization type. | |||
4704 | TemplateName CanonTemplate = getCanonicalTemplateName(Template); | |||
4705 | SmallVector<TemplateArgument, 4> CanonArgs; | |||
4706 | unsigned NumArgs = Args.size(); | |||
4707 | CanonArgs.reserve(NumArgs); | |||
4708 | for (const TemplateArgument &Arg : Args) | |||
4709 | CanonArgs.push_back(getCanonicalTemplateArgument(Arg)); | |||
4710 | ||||
4711 | // Determine whether this canonical template specialization type already | |||
4712 | // exists. | |||
4713 | llvm::FoldingSetNodeID ID; | |||
4714 | TemplateSpecializationType::Profile(ID, CanonTemplate, | |||
4715 | CanonArgs, *this); | |||
4716 | ||||
4717 | void *InsertPos = nullptr; | |||
4718 | TemplateSpecializationType *Spec | |||
4719 | = TemplateSpecializationTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
4720 | ||||
4721 | if (!Spec) { | |||
4722 | // Allocate a new canonical template specialization type. | |||
4723 | void *Mem = Allocate((sizeof(TemplateSpecializationType) + | |||
4724 | sizeof(TemplateArgument) * NumArgs), | |||
4725 | TypeAlignment); | |||
4726 | Spec = new (Mem) TemplateSpecializationType(CanonTemplate, | |||
4727 | CanonArgs, | |||
4728 | QualType(), QualType()); | |||
4729 | Types.push_back(Spec); | |||
4730 | TemplateSpecializationTypes.InsertNode(Spec, InsertPos); | |||
4731 | } | |||
4732 | ||||
4733 | assert(Spec->isDependentType() &&((Spec->isDependentType() && "Non-dependent template-id type must have a canonical type" ) ? static_cast<void> (0) : __assert_fail ("Spec->isDependentType() && \"Non-dependent template-id type must have a canonical type\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 4734, __PRETTY_FUNCTION__)) | |||
4734 | "Non-dependent template-id type must have a canonical type")((Spec->isDependentType() && "Non-dependent template-id type must have a canonical type" ) ? static_cast<void> (0) : __assert_fail ("Spec->isDependentType() && \"Non-dependent template-id type must have a canonical type\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 4734, __PRETTY_FUNCTION__)); | |||
4735 | return QualType(Spec, 0); | |||
4736 | } | |||
4737 | ||||
4738 | QualType ASTContext::getElaboratedType(ElaboratedTypeKeyword Keyword, | |||
4739 | NestedNameSpecifier *NNS, | |||
4740 | QualType NamedType, | |||
4741 | TagDecl *OwnedTagDecl) const { | |||
4742 | llvm::FoldingSetNodeID ID; | |||
4743 | ElaboratedType::Profile(ID, Keyword, NNS, NamedType, OwnedTagDecl); | |||
4744 | ||||
4745 | void *InsertPos = nullptr; | |||
4746 | ElaboratedType *T = ElaboratedTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
4747 | if (T) | |||
4748 | return QualType(T, 0); | |||
4749 | ||||
4750 | QualType Canon = NamedType; | |||
4751 | if (!Canon.isCanonical()) { | |||
4752 | Canon = getCanonicalType(NamedType); | |||
4753 | ElaboratedType *CheckT = ElaboratedTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
4754 | assert(!CheckT && "Elaborated canonical type broken")((!CheckT && "Elaborated canonical type broken") ? static_cast <void> (0) : __assert_fail ("!CheckT && \"Elaborated canonical type broken\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 4754, __PRETTY_FUNCTION__)); | |||
4755 | (void)CheckT; | |||
4756 | } | |||
4757 | ||||
4758 | void *Mem = Allocate(ElaboratedType::totalSizeToAlloc<TagDecl *>(!!OwnedTagDecl), | |||
4759 | TypeAlignment); | |||
4760 | T = new (Mem) ElaboratedType(Keyword, NNS, NamedType, Canon, OwnedTagDecl); | |||
4761 | ||||
4762 | Types.push_back(T); | |||
4763 | ElaboratedTypes.InsertNode(T, InsertPos); | |||
4764 | return QualType(T, 0); | |||
4765 | } | |||
4766 | ||||
4767 | QualType | |||
4768 | ASTContext::getParenType(QualType InnerType) const { | |||
4769 | llvm::FoldingSetNodeID ID; | |||
4770 | ParenType::Profile(ID, InnerType); | |||
4771 | ||||
4772 | void *InsertPos = nullptr; | |||
4773 | ParenType *T = ParenTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
4774 | if (T) | |||
4775 | return QualType(T, 0); | |||
4776 | ||||
4777 | QualType Canon = InnerType; | |||
4778 | if (!Canon.isCanonical()) { | |||
4779 | Canon = getCanonicalType(InnerType); | |||
4780 | ParenType *CheckT = ParenTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
4781 | assert(!CheckT && "Paren canonical type broken")((!CheckT && "Paren canonical type broken") ? static_cast <void> (0) : __assert_fail ("!CheckT && \"Paren canonical type broken\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 4781, __PRETTY_FUNCTION__)); | |||
4782 | (void)CheckT; | |||
4783 | } | |||
4784 | ||||
4785 | T = new (*this, TypeAlignment) ParenType(InnerType, Canon); | |||
4786 | Types.push_back(T); | |||
4787 | ParenTypes.InsertNode(T, InsertPos); | |||
4788 | return QualType(T, 0); | |||
4789 | } | |||
4790 | ||||
4791 | QualType | |||
4792 | ASTContext::getMacroQualifiedType(QualType UnderlyingTy, | |||
4793 | const IdentifierInfo *MacroII) const { | |||
4794 | QualType Canon = UnderlyingTy; | |||
4795 | if (!Canon.isCanonical()) | |||
4796 | Canon = getCanonicalType(UnderlyingTy); | |||
4797 | ||||
4798 | auto *newType = new (*this, TypeAlignment) | |||
4799 | MacroQualifiedType(UnderlyingTy, Canon, MacroII); | |||
4800 | Types.push_back(newType); | |||
4801 | return QualType(newType, 0); | |||
4802 | } | |||
4803 | ||||
4804 | QualType ASTContext::getDependentNameType(ElaboratedTypeKeyword Keyword, | |||
4805 | NestedNameSpecifier *NNS, | |||
4806 | const IdentifierInfo *Name, | |||
4807 | QualType Canon) const { | |||
4808 | if (Canon.isNull()) { | |||
4809 | NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); | |||
4810 | if (CanonNNS != NNS) | |||
4811 | Canon = getDependentNameType(Keyword, CanonNNS, Name); | |||
4812 | } | |||
4813 | ||||
4814 | llvm::FoldingSetNodeID ID; | |||
4815 | DependentNameType::Profile(ID, Keyword, NNS, Name); | |||
4816 | ||||
4817 | void *InsertPos = nullptr; | |||
4818 | DependentNameType *T | |||
4819 | = DependentNameTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
4820 | if (T) | |||
4821 | return QualType(T, 0); | |||
4822 | ||||
4823 | T = new (*this, TypeAlignment) DependentNameType(Keyword, NNS, Name, Canon); | |||
4824 | Types.push_back(T); | |||
4825 | DependentNameTypes.InsertNode(T, InsertPos); | |||
4826 | return QualType(T, 0); | |||
4827 | } | |||
4828 | ||||
4829 | QualType | |||
4830 | ASTContext::getDependentTemplateSpecializationType( | |||
4831 | ElaboratedTypeKeyword Keyword, | |||
4832 | NestedNameSpecifier *NNS, | |||
4833 | const IdentifierInfo *Name, | |||
4834 | const TemplateArgumentListInfo &Args) const { | |||
4835 | // TODO: avoid this copy | |||
4836 | SmallVector<TemplateArgument, 16> ArgCopy; | |||
4837 | for (unsigned I = 0, E = Args.size(); I != E; ++I) | |||
4838 | ArgCopy.push_back(Args[I].getArgument()); | |||
4839 | return getDependentTemplateSpecializationType(Keyword, NNS, Name, ArgCopy); | |||
4840 | } | |||
4841 | ||||
4842 | QualType | |||
4843 | ASTContext::getDependentTemplateSpecializationType( | |||
4844 | ElaboratedTypeKeyword Keyword, | |||
4845 | NestedNameSpecifier *NNS, | |||
4846 | const IdentifierInfo *Name, | |||
4847 | ArrayRef<TemplateArgument> Args) const { | |||
4848 | assert((!NNS || NNS->isDependent()) &&(((!NNS || NNS->isDependent()) && "nested-name-specifier must be dependent" ) ? static_cast<void> (0) : __assert_fail ("(!NNS || NNS->isDependent()) && \"nested-name-specifier must be dependent\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 4849, __PRETTY_FUNCTION__)) | |||
4849 | "nested-name-specifier must be dependent")(((!NNS || NNS->isDependent()) && "nested-name-specifier must be dependent" ) ? static_cast<void> (0) : __assert_fail ("(!NNS || NNS->isDependent()) && \"nested-name-specifier must be dependent\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 4849, __PRETTY_FUNCTION__)); | |||
4850 | ||||
4851 | llvm::FoldingSetNodeID ID; | |||
4852 | DependentTemplateSpecializationType::Profile(ID, *this, Keyword, NNS, | |||
4853 | Name, Args); | |||
4854 | ||||
4855 | void *InsertPos = nullptr; | |||
4856 | DependentTemplateSpecializationType *T | |||
4857 | = DependentTemplateSpecializationTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
4858 | if (T) | |||
4859 | return QualType(T, 0); | |||
4860 | ||||
4861 | NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); | |||
4862 | ||||
4863 | ElaboratedTypeKeyword CanonKeyword = Keyword; | |||
4864 | if (Keyword == ETK_None) CanonKeyword = ETK_Typename; | |||
4865 | ||||
4866 | bool AnyNonCanonArgs = false; | |||
4867 | unsigned NumArgs = Args.size(); | |||
4868 | SmallVector<TemplateArgument, 16> CanonArgs(NumArgs); | |||
4869 | for (unsigned I = 0; I != NumArgs; ++I) { | |||
4870 | CanonArgs[I] = getCanonicalTemplateArgument(Args[I]); | |||
4871 | if (!CanonArgs[I].structurallyEquals(Args[I])) | |||
4872 | AnyNonCanonArgs = true; | |||
4873 | } | |||
4874 | ||||
4875 | QualType Canon; | |||
4876 | if (AnyNonCanonArgs || CanonNNS != NNS || CanonKeyword != Keyword) { | |||
4877 | Canon = getDependentTemplateSpecializationType(CanonKeyword, CanonNNS, | |||
4878 | Name, | |||
4879 | CanonArgs); | |||
4880 | ||||
4881 | // Find the insert position again. | |||
4882 | DependentTemplateSpecializationTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
4883 | } | |||
4884 | ||||
4885 | void *Mem = Allocate((sizeof(DependentTemplateSpecializationType) + | |||
4886 | sizeof(TemplateArgument) * NumArgs), | |||
4887 | TypeAlignment); | |||
4888 | T = new (Mem) DependentTemplateSpecializationType(Keyword, NNS, | |||
4889 | Name, Args, Canon); | |||
4890 | Types.push_back(T); | |||
4891 | DependentTemplateSpecializationTypes.InsertNode(T, InsertPos); | |||
4892 | return QualType(T, 0); | |||
4893 | } | |||
4894 | ||||
4895 | TemplateArgument ASTContext::getInjectedTemplateArg(NamedDecl *Param) { | |||
4896 | TemplateArgument Arg; | |||
4897 | if (const auto *TTP = dyn_cast<TemplateTypeParmDecl>(Param)) { | |||
4898 | QualType ArgType = getTypeDeclType(TTP); | |||
4899 | if (TTP->isParameterPack()) | |||
4900 | ArgType = getPackExpansionType(ArgType, None); | |||
4901 | ||||
4902 | Arg = TemplateArgument(ArgType); | |||
4903 | } else if (auto *NTTP = dyn_cast<NonTypeTemplateParmDecl>(Param)) { | |||
4904 | QualType T = | |||
4905 | NTTP->getType().getNonPackExpansionType().getNonLValueExprType(*this); | |||
4906 | // For class NTTPs, ensure we include the 'const' so the type matches that | |||
4907 | // of a real template argument. | |||
4908 | // FIXME: It would be more faithful to model this as something like an | |||
4909 | // lvalue-to-rvalue conversion applied to a const-qualified lvalue. | |||
4910 | if (T->isRecordType()) | |||
4911 | T.addConst(); | |||
4912 | Expr *E = new (*this) DeclRefExpr( | |||
4913 | *this, NTTP, /*enclosing*/ false, T, | |||
4914 | Expr::getValueKindForType(NTTP->getType()), NTTP->getLocation()); | |||
4915 | ||||
4916 | if (NTTP->isParameterPack()) | |||
4917 | E = new (*this) PackExpansionExpr(DependentTy, E, NTTP->getLocation(), | |||
4918 | None); | |||
4919 | Arg = TemplateArgument(E); | |||
4920 | } else { | |||
4921 | auto *TTP = cast<TemplateTemplateParmDecl>(Param); | |||
4922 | if (TTP->isParameterPack()) | |||
4923 | Arg = TemplateArgument(TemplateName(TTP), Optional<unsigned>()); | |||
4924 | else | |||
4925 | Arg = TemplateArgument(TemplateName(TTP)); | |||
4926 | } | |||
4927 | ||||
4928 | if (Param->isTemplateParameterPack()) | |||
4929 | Arg = TemplateArgument::CreatePackCopy(*this, Arg); | |||
4930 | ||||
4931 | return Arg; | |||
4932 | } | |||
4933 | ||||
4934 | void | |||
4935 | ASTContext::getInjectedTemplateArgs(const TemplateParameterList *Params, | |||
4936 | SmallVectorImpl<TemplateArgument> &Args) { | |||
4937 | Args.reserve(Args.size() + Params->size()); | |||
4938 | ||||
4939 | for (NamedDecl *Param : *Params) | |||
4940 | Args.push_back(getInjectedTemplateArg(Param)); | |||
4941 | } | |||
4942 | ||||
4943 | QualType ASTContext::getPackExpansionType(QualType Pattern, | |||
4944 | Optional<unsigned> NumExpansions, | |||
4945 | bool ExpectPackInType) { | |||
4946 | assert((!ExpectPackInType || Pattern->containsUnexpandedParameterPack()) &&(((!ExpectPackInType || Pattern->containsUnexpandedParameterPack ()) && "Pack expansions must expand one or more parameter packs" ) ? static_cast<void> (0) : __assert_fail ("(!ExpectPackInType || Pattern->containsUnexpandedParameterPack()) && \"Pack expansions must expand one or more parameter packs\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 4947, __PRETTY_FUNCTION__)) | |||
4947 | "Pack expansions must expand one or more parameter packs")(((!ExpectPackInType || Pattern->containsUnexpandedParameterPack ()) && "Pack expansions must expand one or more parameter packs" ) ? static_cast<void> (0) : __assert_fail ("(!ExpectPackInType || Pattern->containsUnexpandedParameterPack()) && \"Pack expansions must expand one or more parameter packs\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 4947, __PRETTY_FUNCTION__)); | |||
4948 | ||||
4949 | llvm::FoldingSetNodeID ID; | |||
4950 | PackExpansionType::Profile(ID, Pattern, NumExpansions); | |||
4951 | ||||
4952 | void *InsertPos = nullptr; | |||
4953 | PackExpansionType *T = PackExpansionTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
4954 | if (T) | |||
4955 | return QualType(T, 0); | |||
4956 | ||||
4957 | QualType Canon; | |||
4958 | if (!Pattern.isCanonical()) { | |||
4959 | Canon = getPackExpansionType(getCanonicalType(Pattern), NumExpansions, | |||
4960 | /*ExpectPackInType=*/false); | |||
4961 | ||||
4962 | // Find the insert position again, in case we inserted an element into | |||
4963 | // PackExpansionTypes and invalidated our insert position. | |||
4964 | PackExpansionTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
4965 | } | |||
4966 | ||||
4967 | T = new (*this, TypeAlignment) | |||
4968 | PackExpansionType(Pattern, Canon, NumExpansions); | |||
4969 | Types.push_back(T); | |||
4970 | PackExpansionTypes.InsertNode(T, InsertPos); | |||
4971 | return QualType(T, 0); | |||
4972 | } | |||
4973 | ||||
4974 | /// CmpProtocolNames - Comparison predicate for sorting protocols | |||
4975 | /// alphabetically. | |||
4976 | static int CmpProtocolNames(ObjCProtocolDecl *const *LHS, | |||
4977 | ObjCProtocolDecl *const *RHS) { | |||
4978 | return DeclarationName::compare((*LHS)->getDeclName(), (*RHS)->getDeclName()); | |||
4979 | } | |||
4980 | ||||
4981 | static bool areSortedAndUniqued(ArrayRef<ObjCProtocolDecl *> Protocols) { | |||
4982 | if (Protocols.empty()) return true; | |||
4983 | ||||
4984 | if (Protocols[0]->getCanonicalDecl() != Protocols[0]) | |||
4985 | return false; | |||
4986 | ||||
4987 | for (unsigned i = 1; i != Protocols.size(); ++i) | |||
4988 | if (CmpProtocolNames(&Protocols[i - 1], &Protocols[i]) >= 0 || | |||
4989 | Protocols[i]->getCanonicalDecl() != Protocols[i]) | |||
4990 | return false; | |||
4991 | return true; | |||
4992 | } | |||
4993 | ||||
4994 | static void | |||
4995 | SortAndUniqueProtocols(SmallVectorImpl<ObjCProtocolDecl *> &Protocols) { | |||
4996 | // Sort protocols, keyed by name. | |||
4997 | llvm::array_pod_sort(Protocols.begin(), Protocols.end(), CmpProtocolNames); | |||
4998 | ||||
4999 | // Canonicalize. | |||
5000 | for (ObjCProtocolDecl *&P : Protocols) | |||
5001 | P = P->getCanonicalDecl(); | |||
5002 | ||||
5003 | // Remove duplicates. | |||
5004 | auto ProtocolsEnd = std::unique(Protocols.begin(), Protocols.end()); | |||
5005 | Protocols.erase(ProtocolsEnd, Protocols.end()); | |||
5006 | } | |||
5007 | ||||
5008 | QualType ASTContext::getObjCObjectType(QualType BaseType, | |||
5009 | ObjCProtocolDecl * const *Protocols, | |||
5010 | unsigned NumProtocols) const { | |||
5011 | return getObjCObjectType(BaseType, {}, | |||
5012 | llvm::makeArrayRef(Protocols, NumProtocols), | |||
5013 | /*isKindOf=*/false); | |||
5014 | } | |||
5015 | ||||
5016 | QualType ASTContext::getObjCObjectType( | |||
5017 | QualType baseType, | |||
5018 | ArrayRef<QualType> typeArgs, | |||
5019 | ArrayRef<ObjCProtocolDecl *> protocols, | |||
5020 | bool isKindOf) const { | |||
5021 | // If the base type is an interface and there aren't any protocols or | |||
5022 | // type arguments to add, then the interface type will do just fine. | |||
5023 | if (typeArgs.empty() && protocols.empty() && !isKindOf && | |||
5024 | isa<ObjCInterfaceType>(baseType)) | |||
5025 | return baseType; | |||
5026 | ||||
5027 | // Look in the folding set for an existing type. | |||
5028 | llvm::FoldingSetNodeID ID; | |||
5029 | ObjCObjectTypeImpl::Profile(ID, baseType, typeArgs, protocols, isKindOf); | |||
5030 | void *InsertPos = nullptr; | |||
5031 | if (ObjCObjectType *QT = ObjCObjectTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
5032 | return QualType(QT, 0); | |||
5033 | ||||
5034 | // Determine the type arguments to be used for canonicalization, | |||
5035 | // which may be explicitly specified here or written on the base | |||
5036 | // type. | |||
5037 | ArrayRef<QualType> effectiveTypeArgs = typeArgs; | |||
5038 | if (effectiveTypeArgs.empty()) { | |||
5039 | if (const auto *baseObject = baseType->getAs<ObjCObjectType>()) | |||
5040 | effectiveTypeArgs = baseObject->getTypeArgs(); | |||
5041 | } | |||
5042 | ||||
5043 | // Build the canonical type, which has the canonical base type and a | |||
5044 | // sorted-and-uniqued list of protocols and the type arguments | |||
5045 | // canonicalized. | |||
5046 | QualType canonical; | |||
5047 | bool typeArgsAreCanonical = std::all_of(effectiveTypeArgs.begin(), | |||
5048 | effectiveTypeArgs.end(), | |||
5049 | [&](QualType type) { | |||
5050 | return type.isCanonical(); | |||
5051 | }); | |||
5052 | bool protocolsSorted = areSortedAndUniqued(protocols); | |||
5053 | if (!typeArgsAreCanonical || !protocolsSorted || !baseType.isCanonical()) { | |||
5054 | // Determine the canonical type arguments. | |||
5055 | ArrayRef<QualType> canonTypeArgs; | |||
5056 | SmallVector<QualType, 4> canonTypeArgsVec; | |||
5057 | if (!typeArgsAreCanonical) { | |||
5058 | canonTypeArgsVec.reserve(effectiveTypeArgs.size()); | |||
5059 | for (auto typeArg : effectiveTypeArgs) | |||
5060 | canonTypeArgsVec.push_back(getCanonicalType(typeArg)); | |||
5061 | canonTypeArgs = canonTypeArgsVec; | |||
5062 | } else { | |||
5063 | canonTypeArgs = effectiveTypeArgs; | |||
5064 | } | |||
5065 | ||||
5066 | ArrayRef<ObjCProtocolDecl *> canonProtocols; | |||
5067 | SmallVector<ObjCProtocolDecl*, 8> canonProtocolsVec; | |||
5068 | if (!protocolsSorted) { | |||
5069 | canonProtocolsVec.append(protocols.begin(), protocols.end()); | |||
5070 | SortAndUniqueProtocols(canonProtocolsVec); | |||
5071 | canonProtocols = canonProtocolsVec; | |||
5072 | } else { | |||
5073 | canonProtocols = protocols; | |||
5074 | } | |||
5075 | ||||
5076 | canonical = getObjCObjectType(getCanonicalType(baseType), canonTypeArgs, | |||
5077 | canonProtocols, isKindOf); | |||
5078 | ||||
5079 | // Regenerate InsertPos. | |||
5080 | ObjCObjectTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
5081 | } | |||
5082 | ||||
5083 | unsigned size = sizeof(ObjCObjectTypeImpl); | |||
5084 | size += typeArgs.size() * sizeof(QualType); | |||
5085 | size += protocols.size() * sizeof(ObjCProtocolDecl *); | |||
5086 | void *mem = Allocate(size, TypeAlignment); | |||
5087 | auto *T = | |||
5088 | new (mem) ObjCObjectTypeImpl(canonical, baseType, typeArgs, protocols, | |||
5089 | isKindOf); | |||
5090 | ||||
5091 | Types.push_back(T); | |||
5092 | ObjCObjectTypes.InsertNode(T, InsertPos); | |||
5093 | return QualType(T, 0); | |||
5094 | } | |||
5095 | ||||
5096 | /// Apply Objective-C protocol qualifiers to the given type. | |||
5097 | /// If this is for the canonical type of a type parameter, we can apply | |||
5098 | /// protocol qualifiers on the ObjCObjectPointerType. | |||
5099 | QualType | |||
5100 | ASTContext::applyObjCProtocolQualifiers(QualType type, | |||
5101 | ArrayRef<ObjCProtocolDecl *> protocols, bool &hasError, | |||
5102 | bool allowOnPointerType) const { | |||
5103 | hasError = false; | |||
5104 | ||||
5105 | if (const auto *objT = dyn_cast<ObjCTypeParamType>(type.getTypePtr())) { | |||
5106 | return getObjCTypeParamType(objT->getDecl(), protocols); | |||
5107 | } | |||
5108 | ||||
5109 | // Apply protocol qualifiers to ObjCObjectPointerType. | |||
5110 | if (allowOnPointerType) { | |||
5111 | if (const auto *objPtr = | |||
5112 | dyn_cast<ObjCObjectPointerType>(type.getTypePtr())) { | |||
5113 | const ObjCObjectType *objT = objPtr->getObjectType(); | |||
5114 | // Merge protocol lists and construct ObjCObjectType. | |||
5115 | SmallVector<ObjCProtocolDecl*, 8> protocolsVec; | |||
5116 | protocolsVec.append(objT->qual_begin(), | |||
5117 | objT->qual_end()); | |||
5118 | protocolsVec.append(protocols.begin(), protocols.end()); | |||
5119 | ArrayRef<ObjCProtocolDecl *> protocols = protocolsVec; | |||
5120 | type = getObjCObjectType( | |||
5121 | objT->getBaseType(), | |||
5122 | objT->getTypeArgsAsWritten(), | |||
5123 | protocols, | |||
5124 | objT->isKindOfTypeAsWritten()); | |||
5125 | return getObjCObjectPointerType(type); | |||
5126 | } | |||
5127 | } | |||
5128 | ||||
5129 | // Apply protocol qualifiers to ObjCObjectType. | |||
5130 | if (const auto *objT = dyn_cast<ObjCObjectType>(type.getTypePtr())){ | |||
5131 | // FIXME: Check for protocols to which the class type is already | |||
5132 | // known to conform. | |||
5133 | ||||
5134 | return getObjCObjectType(objT->getBaseType(), | |||
5135 | objT->getTypeArgsAsWritten(), | |||
5136 | protocols, | |||
5137 | objT->isKindOfTypeAsWritten()); | |||
5138 | } | |||
5139 | ||||
5140 | // If the canonical type is ObjCObjectType, ... | |||
5141 | if (type->isObjCObjectType()) { | |||
5142 | // Silently overwrite any existing protocol qualifiers. | |||
5143 | // TODO: determine whether that's the right thing to do. | |||
5144 | ||||
5145 | // FIXME: Check for protocols to which the class type is already | |||
5146 | // known to conform. | |||
5147 | return getObjCObjectType(type, {}, protocols, false); | |||
5148 | } | |||
5149 | ||||
5150 | // id<protocol-list> | |||
5151 | if (type->isObjCIdType()) { | |||
5152 | const auto *objPtr = type->castAs<ObjCObjectPointerType>(); | |||
5153 | type = getObjCObjectType(ObjCBuiltinIdTy, {}, protocols, | |||
5154 | objPtr->isKindOfType()); | |||
5155 | return getObjCObjectPointerType(type); | |||
5156 | } | |||
5157 | ||||
5158 | // Class<protocol-list> | |||
5159 | if (type->isObjCClassType()) { | |||
5160 | const auto *objPtr = type->castAs<ObjCObjectPointerType>(); | |||
5161 | type = getObjCObjectType(ObjCBuiltinClassTy, {}, protocols, | |||
5162 | objPtr->isKindOfType()); | |||
5163 | return getObjCObjectPointerType(type); | |||
5164 | } | |||
5165 | ||||
5166 | hasError = true; | |||
5167 | return type; | |||
5168 | } | |||
5169 | ||||
5170 | QualType | |||
5171 | ASTContext::getObjCTypeParamType(const ObjCTypeParamDecl *Decl, | |||
5172 | ArrayRef<ObjCProtocolDecl *> protocols) const { | |||
5173 | // Look in the folding set for an existing type. | |||
5174 | llvm::FoldingSetNodeID ID; | |||
5175 | ObjCTypeParamType::Profile(ID, Decl, Decl->getUnderlyingType(), protocols); | |||
5176 | void *InsertPos = nullptr; | |||
5177 | if (ObjCTypeParamType *TypeParam = | |||
5178 | ObjCTypeParamTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
5179 | return QualType(TypeParam, 0); | |||
5180 | ||||
5181 | // We canonicalize to the underlying type. | |||
5182 | QualType Canonical = getCanonicalType(Decl->getUnderlyingType()); | |||
5183 | if (!protocols.empty()) { | |||
5184 | // Apply the protocol qualifers. | |||
5185 | bool hasError; | |||
5186 | Canonical = getCanonicalType(applyObjCProtocolQualifiers( | |||
5187 | Canonical, protocols, hasError, true /*allowOnPointerType*/)); | |||
5188 | assert(!hasError && "Error when apply protocol qualifier to bound type")((!hasError && "Error when apply protocol qualifier to bound type" ) ? static_cast<void> (0) : __assert_fail ("!hasError && \"Error when apply protocol qualifier to bound type\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 5188, __PRETTY_FUNCTION__)); | |||
5189 | } | |||
5190 | ||||
5191 | unsigned size = sizeof(ObjCTypeParamType); | |||
5192 | size += protocols.size() * sizeof(ObjCProtocolDecl *); | |||
5193 | void *mem = Allocate(size, TypeAlignment); | |||
5194 | auto *newType = new (mem) ObjCTypeParamType(Decl, Canonical, protocols); | |||
5195 | ||||
5196 | Types.push_back(newType); | |||
5197 | ObjCTypeParamTypes.InsertNode(newType, InsertPos); | |||
5198 | return QualType(newType, 0); | |||
5199 | } | |||
5200 | ||||
5201 | void ASTContext::adjustObjCTypeParamBoundType(const ObjCTypeParamDecl *Orig, | |||
5202 | ObjCTypeParamDecl *New) const { | |||
5203 | New->setTypeSourceInfo(getTrivialTypeSourceInfo(Orig->getUnderlyingType())); | |||
5204 | // Update TypeForDecl after updating TypeSourceInfo. | |||
5205 | auto NewTypeParamTy = cast<ObjCTypeParamType>(New->getTypeForDecl()); | |||
5206 | SmallVector<ObjCProtocolDecl *, 8> protocols; | |||
5207 | protocols.append(NewTypeParamTy->qual_begin(), NewTypeParamTy->qual_end()); | |||
5208 | QualType UpdatedTy = getObjCTypeParamType(New, protocols); | |||
5209 | New->setTypeForDecl(UpdatedTy.getTypePtr()); | |||
5210 | } | |||
5211 | ||||
5212 | /// ObjCObjectAdoptsQTypeProtocols - Checks that protocols in IC's | |||
5213 | /// protocol list adopt all protocols in QT's qualified-id protocol | |||
5214 | /// list. | |||
5215 | bool ASTContext::ObjCObjectAdoptsQTypeProtocols(QualType QT, | |||
5216 | ObjCInterfaceDecl *IC) { | |||
5217 | if (!QT->isObjCQualifiedIdType()) | |||
5218 | return false; | |||
5219 | ||||
5220 | if (const auto *OPT = QT->getAs<ObjCObjectPointerType>()) { | |||
5221 | // If both the right and left sides have qualifiers. | |||
5222 | for (auto *Proto : OPT->quals()) { | |||
5223 | if (!IC->ClassImplementsProtocol(Proto, false)) | |||
5224 | return false; | |||
5225 | } | |||
5226 | return true; | |||
5227 | } | |||
5228 | return false; | |||
5229 | } | |||
5230 | ||||
5231 | /// QIdProtocolsAdoptObjCObjectProtocols - Checks that protocols in | |||
5232 | /// QT's qualified-id protocol list adopt all protocols in IDecl's list | |||
5233 | /// of protocols. | |||
5234 | bool ASTContext::QIdProtocolsAdoptObjCObjectProtocols(QualType QT, | |||
5235 | ObjCInterfaceDecl *IDecl) { | |||
5236 | if (!QT->isObjCQualifiedIdType()) | |||
5237 | return false; | |||
5238 | const auto *OPT = QT->getAs<ObjCObjectPointerType>(); | |||
5239 | if (!OPT) | |||
5240 | return false; | |||
5241 | if (!IDecl->hasDefinition()) | |||
5242 | return false; | |||
5243 | llvm::SmallPtrSet<ObjCProtocolDecl *, 8> InheritedProtocols; | |||
5244 | CollectInheritedProtocols(IDecl, InheritedProtocols); | |||
5245 | if (InheritedProtocols.empty()) | |||
5246 | return false; | |||
5247 | // Check that if every protocol in list of id<plist> conforms to a protocol | |||
5248 | // of IDecl's, then bridge casting is ok. | |||
5249 | bool Conforms = false; | |||
5250 | for (auto *Proto : OPT->quals()) { | |||
5251 | Conforms = false; | |||
5252 | for (auto *PI : InheritedProtocols) { | |||
5253 | if (ProtocolCompatibleWithProtocol(Proto, PI)) { | |||
5254 | Conforms = true; | |||
5255 | break; | |||
5256 | } | |||
5257 | } | |||
5258 | if (!Conforms) | |||
5259 | break; | |||
5260 | } | |||
5261 | if (Conforms) | |||
5262 | return true; | |||
5263 | ||||
5264 | for (auto *PI : InheritedProtocols) { | |||
5265 | // If both the right and left sides have qualifiers. | |||
5266 | bool Adopts = false; | |||
5267 | for (auto *Proto : OPT->quals()) { | |||
5268 | // return 'true' if 'PI' is in the inheritance hierarchy of Proto | |||
5269 | if ((Adopts = ProtocolCompatibleWithProtocol(PI, Proto))) | |||
5270 | break; | |||
5271 | } | |||
5272 | if (!Adopts) | |||
5273 | return false; | |||
5274 | } | |||
5275 | return true; | |||
5276 | } | |||
5277 | ||||
5278 | /// getObjCObjectPointerType - Return a ObjCObjectPointerType type for | |||
5279 | /// the given object type. | |||
5280 | QualType ASTContext::getObjCObjectPointerType(QualType ObjectT) const { | |||
5281 | llvm::FoldingSetNodeID ID; | |||
5282 | ObjCObjectPointerType::Profile(ID, ObjectT); | |||
5283 | ||||
5284 | void *InsertPos = nullptr; | |||
5285 | if (ObjCObjectPointerType *QT = | |||
5286 | ObjCObjectPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
5287 | return QualType(QT, 0); | |||
5288 | ||||
5289 | // Find the canonical object type. | |||
5290 | QualType Canonical; | |||
5291 | if (!ObjectT.isCanonical()) { | |||
5292 | Canonical = getObjCObjectPointerType(getCanonicalType(ObjectT)); | |||
5293 | ||||
5294 | // Regenerate InsertPos. | |||
5295 | ObjCObjectPointerTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
5296 | } | |||
5297 | ||||
5298 | // No match. | |||
5299 | void *Mem = Allocate(sizeof(ObjCObjectPointerType), TypeAlignment); | |||
5300 | auto *QType = | |||
5301 | new (Mem) ObjCObjectPointerType(Canonical, ObjectT); | |||
5302 | ||||
5303 | Types.push_back(QType); | |||
5304 | ObjCObjectPointerTypes.InsertNode(QType, InsertPos); | |||
5305 | return QualType(QType, 0); | |||
5306 | } | |||
5307 | ||||
5308 | /// getObjCInterfaceType - Return the unique reference to the type for the | |||
5309 | /// specified ObjC interface decl. The list of protocols is optional. | |||
5310 | QualType ASTContext::getObjCInterfaceType(const ObjCInterfaceDecl *Decl, | |||
5311 | ObjCInterfaceDecl *PrevDecl) const { | |||
5312 | if (Decl->TypeForDecl) | |||
5313 | return QualType(Decl->TypeForDecl, 0); | |||
5314 | ||||
5315 | if (PrevDecl) { | |||
5316 | assert(PrevDecl->TypeForDecl && "previous decl has no TypeForDecl")((PrevDecl->TypeForDecl && "previous decl has no TypeForDecl" ) ? static_cast<void> (0) : __assert_fail ("PrevDecl->TypeForDecl && \"previous decl has no TypeForDecl\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 5316, __PRETTY_FUNCTION__)); | |||
5317 | Decl->TypeForDecl = PrevDecl->TypeForDecl; | |||
5318 | return QualType(PrevDecl->TypeForDecl, 0); | |||
5319 | } | |||
5320 | ||||
5321 | // Prefer the definition, if there is one. | |||
5322 | if (const ObjCInterfaceDecl *Def = Decl->getDefinition()) | |||
5323 | Decl = Def; | |||
5324 | ||||
5325 | void *Mem = Allocate(sizeof(ObjCInterfaceType), TypeAlignment); | |||
5326 | auto *T = new (Mem) ObjCInterfaceType(Decl); | |||
5327 | Decl->TypeForDecl = T; | |||
5328 | Types.push_back(T); | |||
5329 | return QualType(T, 0); | |||
5330 | } | |||
5331 | ||||
5332 | /// getTypeOfExprType - Unlike many "get<Type>" functions, we can't unique | |||
5333 | /// TypeOfExprType AST's (since expression's are never shared). For example, | |||
5334 | /// multiple declarations that refer to "typeof(x)" all contain different | |||
5335 | /// DeclRefExpr's. This doesn't effect the type checker, since it operates | |||
5336 | /// on canonical type's (which are always unique). | |||
5337 | QualType ASTContext::getTypeOfExprType(Expr *tofExpr) const { | |||
5338 | TypeOfExprType *toe; | |||
5339 | if (tofExpr->isTypeDependent()) { | |||
5340 | llvm::FoldingSetNodeID ID; | |||
5341 | DependentTypeOfExprType::Profile(ID, *this, tofExpr); | |||
5342 | ||||
5343 | void *InsertPos = nullptr; | |||
5344 | DependentTypeOfExprType *Canon | |||
5345 | = DependentTypeOfExprTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
5346 | if (Canon) { | |||
5347 | // We already have a "canonical" version of an identical, dependent | |||
5348 | // typeof(expr) type. Use that as our canonical type. | |||
5349 | toe = new (*this, TypeAlignment) TypeOfExprType(tofExpr, | |||
5350 | QualType((TypeOfExprType*)Canon, 0)); | |||
5351 | } else { | |||
5352 | // Build a new, canonical typeof(expr) type. | |||
5353 | Canon | |||
5354 | = new (*this, TypeAlignment) DependentTypeOfExprType(*this, tofExpr); | |||
5355 | DependentTypeOfExprTypes.InsertNode(Canon, InsertPos); | |||
5356 | toe = Canon; | |||
5357 | } | |||
5358 | } else { | |||
5359 | QualType Canonical = getCanonicalType(tofExpr->getType()); | |||
5360 | toe = new (*this, TypeAlignment) TypeOfExprType(tofExpr, Canonical); | |||
5361 | } | |||
5362 | Types.push_back(toe); | |||
5363 | return QualType(toe, 0); | |||
5364 | } | |||
5365 | ||||
5366 | /// getTypeOfType - Unlike many "get<Type>" functions, we don't unique | |||
5367 | /// TypeOfType nodes. The only motivation to unique these nodes would be | |||
5368 | /// memory savings. Since typeof(t) is fairly uncommon, space shouldn't be | |||
5369 | /// an issue. This doesn't affect the type checker, since it operates | |||
5370 | /// on canonical types (which are always unique). | |||
5371 | QualType ASTContext::getTypeOfType(QualType tofType) const { | |||
5372 | QualType Canonical = getCanonicalType(tofType); | |||
5373 | auto *tot = new (*this, TypeAlignment) TypeOfType(tofType, Canonical); | |||
5374 | Types.push_back(tot); | |||
5375 | return QualType(tot, 0); | |||
5376 | } | |||
5377 | ||||
5378 | /// Unlike many "get<Type>" functions, we don't unique DecltypeType | |||
5379 | /// nodes. This would never be helpful, since each such type has its own | |||
5380 | /// expression, and would not give a significant memory saving, since there | |||
5381 | /// is an Expr tree under each such type. | |||
5382 | QualType ASTContext::getDecltypeType(Expr *e, QualType UnderlyingType) const { | |||
5383 | DecltypeType *dt; | |||
5384 | ||||
5385 | // C++11 [temp.type]p2: | |||
5386 | // If an expression e involves a template parameter, decltype(e) denotes a | |||
5387 | // unique dependent type. Two such decltype-specifiers refer to the same | |||
5388 | // type only if their expressions are equivalent (14.5.6.1). | |||
5389 | if (e->isInstantiationDependent()) { | |||
5390 | llvm::FoldingSetNodeID ID; | |||
5391 | DependentDecltypeType::Profile(ID, *this, e); | |||
5392 | ||||
5393 | void *InsertPos = nullptr; | |||
5394 | DependentDecltypeType *Canon | |||
5395 | = DependentDecltypeTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
5396 | if (!Canon) { | |||
5397 | // Build a new, canonical decltype(expr) type. | |||
5398 | Canon = new (*this, TypeAlignment) DependentDecltypeType(*this, e); | |||
5399 | DependentDecltypeTypes.InsertNode(Canon, InsertPos); | |||
5400 | } | |||
5401 | dt = new (*this, TypeAlignment) | |||
5402 | DecltypeType(e, UnderlyingType, QualType((DecltypeType *)Canon, 0)); | |||
5403 | } else { | |||
5404 | dt = new (*this, TypeAlignment) | |||
5405 | DecltypeType(e, UnderlyingType, getCanonicalType(UnderlyingType)); | |||
5406 | } | |||
5407 | Types.push_back(dt); | |||
5408 | return QualType(dt, 0); | |||
5409 | } | |||
5410 | ||||
5411 | /// getUnaryTransformationType - We don't unique these, since the memory | |||
5412 | /// savings are minimal and these are rare. | |||
5413 | QualType ASTContext::getUnaryTransformType(QualType BaseType, | |||
5414 | QualType UnderlyingType, | |||
5415 | UnaryTransformType::UTTKind Kind) | |||
5416 | const { | |||
5417 | UnaryTransformType *ut = nullptr; | |||
5418 | ||||
5419 | if (BaseType->isDependentType()) { | |||
5420 | // Look in the folding set for an existing type. | |||
5421 | llvm::FoldingSetNodeID ID; | |||
5422 | DependentUnaryTransformType::Profile(ID, getCanonicalType(BaseType), Kind); | |||
5423 | ||||
5424 | void *InsertPos = nullptr; | |||
5425 | DependentUnaryTransformType *Canon | |||
5426 | = DependentUnaryTransformTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
5427 | ||||
5428 | if (!Canon) { | |||
5429 | // Build a new, canonical __underlying_type(type) type. | |||
5430 | Canon = new (*this, TypeAlignment) | |||
5431 | DependentUnaryTransformType(*this, getCanonicalType(BaseType), | |||
5432 | Kind); | |||
5433 | DependentUnaryTransformTypes.InsertNode(Canon, InsertPos); | |||
5434 | } | |||
5435 | ut = new (*this, TypeAlignment) UnaryTransformType (BaseType, | |||
5436 | QualType(), Kind, | |||
5437 | QualType(Canon, 0)); | |||
5438 | } else { | |||
5439 | QualType CanonType = getCanonicalType(UnderlyingType); | |||
5440 | ut = new (*this, TypeAlignment) UnaryTransformType (BaseType, | |||
5441 | UnderlyingType, Kind, | |||
5442 | CanonType); | |||
5443 | } | |||
5444 | Types.push_back(ut); | |||
5445 | return QualType(ut, 0); | |||
5446 | } | |||
5447 | ||||
5448 | /// getAutoType - Return the uniqued reference to the 'auto' type which has been | |||
5449 | /// deduced to the given type, or to the canonical undeduced 'auto' type, or the | |||
5450 | /// canonical deduced-but-dependent 'auto' type. | |||
5451 | QualType | |||
5452 | ASTContext::getAutoType(QualType DeducedType, AutoTypeKeyword Keyword, | |||
5453 | bool IsDependent, bool IsPack, | |||
5454 | ConceptDecl *TypeConstraintConcept, | |||
5455 | ArrayRef<TemplateArgument> TypeConstraintArgs) const { | |||
5456 | assert((!IsPack || IsDependent) && "only use IsPack for a dependent pack")(((!IsPack || IsDependent) && "only use IsPack for a dependent pack" ) ? static_cast<void> (0) : __assert_fail ("(!IsPack || IsDependent) && \"only use IsPack for a dependent pack\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 5456, __PRETTY_FUNCTION__)); | |||
5457 | if (DeducedType.isNull() && Keyword == AutoTypeKeyword::Auto && | |||
5458 | !TypeConstraintConcept && !IsDependent) | |||
5459 | return getAutoDeductType(); | |||
5460 | ||||
5461 | // Look in the folding set for an existing type. | |||
5462 | void *InsertPos = nullptr; | |||
5463 | llvm::FoldingSetNodeID ID; | |||
5464 | AutoType::Profile(ID, *this, DeducedType, Keyword, IsDependent, | |||
5465 | TypeConstraintConcept, TypeConstraintArgs); | |||
5466 | if (AutoType *AT = AutoTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
5467 | return QualType(AT, 0); | |||
5468 | ||||
5469 | void *Mem = Allocate(sizeof(AutoType) + | |||
5470 | sizeof(TemplateArgument) * TypeConstraintArgs.size(), | |||
5471 | TypeAlignment); | |||
5472 | auto *AT = new (Mem) AutoType( | |||
5473 | DeducedType, Keyword, | |||
5474 | (IsDependent ? TypeDependence::DependentInstantiation | |||
5475 | : TypeDependence::None) | | |||
5476 | (IsPack ? TypeDependence::UnexpandedPack : TypeDependence::None), | |||
5477 | TypeConstraintConcept, TypeConstraintArgs); | |||
5478 | Types.push_back(AT); | |||
5479 | if (InsertPos) | |||
5480 | AutoTypes.InsertNode(AT, InsertPos); | |||
5481 | return QualType(AT, 0); | |||
5482 | } | |||
5483 | ||||
5484 | /// Return the uniqued reference to the deduced template specialization type | |||
5485 | /// which has been deduced to the given type, or to the canonical undeduced | |||
5486 | /// such type, or the canonical deduced-but-dependent such type. | |||
5487 | QualType ASTContext::getDeducedTemplateSpecializationType( | |||
5488 | TemplateName Template, QualType DeducedType, bool IsDependent) const { | |||
5489 | // Look in the folding set for an existing type. | |||
5490 | void *InsertPos = nullptr; | |||
5491 | llvm::FoldingSetNodeID ID; | |||
5492 | DeducedTemplateSpecializationType::Profile(ID, Template, DeducedType, | |||
5493 | IsDependent); | |||
5494 | if (DeducedTemplateSpecializationType *DTST = | |||
5495 | DeducedTemplateSpecializationTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
5496 | return QualType(DTST, 0); | |||
5497 | ||||
5498 | auto *DTST = new (*this, TypeAlignment) | |||
5499 | DeducedTemplateSpecializationType(Template, DeducedType, IsDependent); | |||
5500 | Types.push_back(DTST); | |||
5501 | if (InsertPos) | |||
5502 | DeducedTemplateSpecializationTypes.InsertNode(DTST, InsertPos); | |||
5503 | return QualType(DTST, 0); | |||
5504 | } | |||
5505 | ||||
5506 | /// getAtomicType - Return the uniqued reference to the atomic type for | |||
5507 | /// the given value type. | |||
5508 | QualType ASTContext::getAtomicType(QualType T) const { | |||
5509 | // Unique pointers, to guarantee there is only one pointer of a particular | |||
5510 | // structure. | |||
5511 | llvm::FoldingSetNodeID ID; | |||
5512 | AtomicType::Profile(ID, T); | |||
5513 | ||||
5514 | void *InsertPos = nullptr; | |||
5515 | if (AtomicType *AT = AtomicTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
5516 | return QualType(AT, 0); | |||
5517 | ||||
5518 | // If the atomic value type isn't canonical, this won't be a canonical type | |||
5519 | // either, so fill in the canonical type field. | |||
5520 | QualType Canonical; | |||
5521 | if (!T.isCanonical()) { | |||
5522 | Canonical = getAtomicType(getCanonicalType(T)); | |||
5523 | ||||
5524 | // Get the new insert position for the node we care about. | |||
5525 | AtomicType *NewIP = AtomicTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
5526 | assert(!NewIP && "Shouldn't be in the map!")((!NewIP && "Shouldn't be in the map!") ? static_cast <void> (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 5526, __PRETTY_FUNCTION__)); (void)NewIP; | |||
5527 | } | |||
5528 | auto *New = new (*this, TypeAlignment) AtomicType(T, Canonical); | |||
5529 | Types.push_back(New); | |||
5530 | AtomicTypes.InsertNode(New, InsertPos); | |||
5531 | return QualType(New, 0); | |||
5532 | } | |||
5533 | ||||
5534 | /// getAutoDeductType - Get type pattern for deducing against 'auto'. | |||
5535 | QualType ASTContext::getAutoDeductType() const { | |||
5536 | if (AutoDeductTy.isNull()) | |||
5537 | AutoDeductTy = QualType(new (*this, TypeAlignment) | |||
5538 | AutoType(QualType(), AutoTypeKeyword::Auto, | |||
5539 | TypeDependence::None, | |||
5540 | /*concept*/ nullptr, /*args*/ {}), | |||
5541 | 0); | |||
5542 | return AutoDeductTy; | |||
5543 | } | |||
5544 | ||||
5545 | /// getAutoRRefDeductType - Get type pattern for deducing against 'auto &&'. | |||
5546 | QualType ASTContext::getAutoRRefDeductType() const { | |||
5547 | if (AutoRRefDeductTy.isNull()) | |||
5548 | AutoRRefDeductTy = getRValueReferenceType(getAutoDeductType()); | |||
5549 | assert(!AutoRRefDeductTy.isNull() && "can't build 'auto &&' pattern")((!AutoRRefDeductTy.isNull() && "can't build 'auto &&' pattern" ) ? static_cast<void> (0) : __assert_fail ("!AutoRRefDeductTy.isNull() && \"can't build 'auto &&' pattern\"" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 5549, __PRETTY_FUNCTION__)); | |||
5550 | return AutoRRefDeductTy; | |||
5551 | } | |||
5552 | ||||
5553 | /// getTagDeclType - Return the unique reference to the type for the | |||
5554 | /// specified TagDecl (struct/union/class/enum) decl. | |||
5555 | QualType ASTContext::getTagDeclType(const TagDecl *Decl) const { | |||
5556 | assert(Decl)((Decl) ? static_cast<void> (0) : __assert_fail ("Decl" , "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 5556, __PRETTY_FUNCTION__)); | |||
5557 | // FIXME: What is the design on getTagDeclType when it requires casting | |||
5558 | // away const? mutable? | |||
5559 | return getTypeDeclType(const_cast<TagDecl*>(Decl)); | |||
5560 | } | |||
5561 | ||||
5562 | /// getSizeType - Return the unique type for "size_t" (C99 7.17), the result | |||
5563 | /// of the sizeof operator (C99 6.5.3.4p4). The value is target dependent and | |||
5564 | /// needs to agree with the definition in <stddef.h>. | |||
5565 | CanQualType ASTContext::getSizeType() const { | |||
5566 | return getFromTargetType(Target->getSizeType()); | |||
5567 | } | |||
5568 | ||||
5569 | /// Return the unique signed counterpart of the integer type | |||
5570 | /// corresponding to size_t. | |||
5571 | CanQualType ASTContext::getSignedSizeType() const { | |||
5572 | return getFromTargetType(Target->getSignedSizeType()); | |||
5573 | } | |||
5574 | ||||
5575 | /// getIntMaxType - Return the unique type for "intmax_t" (C99 7.18.1.5). | |||
5576 | CanQualType ASTContext::getIntMaxType() const { | |||
5577 | return getFromTargetType(Target->getIntMaxType()); | |||
5578 | } | |||
5579 | ||||
5580 | /// getUIntMaxType - Return the unique type for "uintmax_t" (C99 7.18.1.5). | |||
5581 | CanQualType ASTContext::getUIntMaxType() const { | |||
5582 | return getFromTargetType(Target->getUIntMaxType()); | |||
5583 | } | |||
5584 | ||||
5585 | /// getSignedWCharType - Return the type of "signed wchar_t". | |||
5586 | /// Used when in C++, as a GCC extension. | |||
5587 | QualType ASTContext::getSignedWCharType() const { | |||
5588 | // FIXME: derive from "Target" ? | |||
5589 | return WCharTy; | |||
5590 | } | |||
5591 | ||||
5592 | /// getUnsignedWCharType - Return the type of "unsigned wchar_t". | |||
5593 | /// Used when in C++, as a GCC extension. | |||
5594 | QualType ASTContext::getUnsignedWCharType() const { | |||
5595 | // FIXME: derive from "Target" ? | |||
5596 | return UnsignedIntTy; | |||
5597 | } | |||
5598 | ||||
5599 | QualType ASTContext::getIntPtrType() const { | |||
5600 | return getFromTargetType(Target->getIntPtrType()); | |||
5601 | } | |||
5602 | ||||
5603 | QualType ASTContext::getUIntPtrType() const { | |||
5604 | return getCorrespondingUnsignedType(getIntPtrType()); | |||
5605 | } | |||
5606 | ||||
5607 | /// getPointerDiffType - Return the unique type for "ptrdiff_t" (C99 7.17) | |||
5608 | /// defined in <stddef.h>. Pointer - pointer requires this (C99 6.5.6p9). | |||
5609 | QualType ASTContext::getPointerDiffType() const { | |||
5610 | return getFromTargetType(Target->getPtrDiffType(0)); | |||
5611 | } | |||
5612 | ||||
5613 | /// Return the unique unsigned counterpart of "ptrdiff_t" | |||
5614 | /// integer type. The standard (C11 7.21.6.1p7) refers to this type | |||
5615 | /// in the definition of %tu format specifier. | |||
5616 | QualType ASTContext::getUnsignedPointerDiffType() const { | |||
5617 | return getFromTargetType(Target->getUnsignedPtrDiffType(0)); | |||
5618 | } | |||
5619 | ||||
5620 | /// Return the unique type for "pid_t" defined in | |||
5621 | /// <sys/types.h>. We need this to compute the correct type for vfork(). | |||
5622 | QualType ASTContext::getProcessIDType() const { | |||
5623 | return getFromTargetType(Target->getProcessIDType()); | |||
5624 | } | |||
5625 | ||||
5626 | //===----------------------------------------------------------------------===// | |||
5627 | // Type Operators | |||
5628 | //===----------------------------------------------------------------------===// | |||
5629 | ||||
5630 | CanQualType ASTContext::getCanonicalParamType(QualType T) const { | |||
5631 | // Push qualifiers into arrays, and then discard any remaining | |||
5632 | // qualifiers. | |||
5633 | T = getCanonicalType(T); | |||
5634 | T = getVariableArrayDecayedType(T); | |||
5635 | const Type *Ty = T.getTypePtr(); | |||
5636 | QualType Result; | |||
5637 | if (isa<ArrayType>(Ty)) { | |||
5638 | Result = getArrayDecayedType(QualType(Ty,0)); | |||
5639 | } else if (isa<FunctionType>(Ty)) { | |||
5640 | Result = getPointerType(QualType(Ty, 0)); | |||
5641 | } else { | |||
5642 | Result = QualType(Ty, 0); | |||
5643 | } | |||
5644 | ||||
5645 | return CanQualType::CreateUnsafe(Result); | |||
5646 | } | |||
5647 | ||||
5648 | QualType ASTContext::getUnqualifiedArrayType(QualType type, | |||
5649 | Qualifiers &quals) { | |||
5650 | SplitQualType splitType = type.getSplitUnqualifiedType(); | |||
5651 | ||||
5652 | // FIXME: getSplitUnqualifiedType() actually walks all the way to | |||
5653 | // the unqualified desugared type and then drops it on the floor. | |||
5654 | // We then have to strip that sugar back off with | |||
5655 | // getUnqualifiedDesugaredType(), which is silly. | |||
5656 | const auto *AT = | |||
5657 | dyn_cast<ArrayType>(splitType.Ty->getUnqualifiedDesugaredType()); | |||
5658 | ||||
5659 | // If we don't have an array, just use the results in splitType. | |||
5660 | if (!AT) { | |||
5661 | quals = splitType.Quals; | |||
5662 | return QualType(splitType.Ty, 0); | |||
5663 | } | |||
5664 | ||||
5665 | // Otherwise, recurse on the array's element type. | |||
5666 | QualType elementType = AT->getElementType(); | |||
5667 | QualType unqualElementType = getUnqualifiedArrayType(elementType, quals); | |||
5668 | ||||
5669 | // If that didn't change the element type, AT has no qualifiers, so we | |||
5670 | // can just use the results in splitType. | |||
5671 | if (elementType == unqualElementType) { | |||
5672 | assert(quals.empty())((quals.empty()) ? static_cast<void> (0) : __assert_fail ("quals.empty()", "/build/llvm-toolchain-snapshot-12~++20210124100612+2afaf072f5c1/clang/lib/AST/ASTContext.cpp" , 5672, __PRETTY_FUNCTION__)); // from the recursive call | |||
5673 | quals = splitType.Quals; | |||
5674 | return QualType(splitType.Ty, 0); | |||
5675 | } | |||
5676 | ||||
5677 | // Otherwise, add in the qualifiers from the outermost type, then | |||
5678 | // build the type back up. | |||
5679 | quals.addConsistentQualifiers(splitType.Quals); | |||
5680 | ||||
5681 | if (const auto *CAT = dyn_cast<ConstantArrayType>(AT)) { | |||
5682 | return getConstantArrayType(unqualElementType, CAT->getSize(), | |||
5683 | CAT->getSizeExpr(), CAT->getSizeModifier(), 0); | |||
5684 | } | |||
5685 | ||||
5686 | if (const auto *IAT = dyn_cast<IncompleteArrayType>(AT)) { | |||
5687 | return getIncompleteArrayType(unqualElementType, IAT->getSizeModifier(), 0); | |||
5688 | } | |||
5689 | ||||
5690 | if (const auto *VAT = dyn_cast<VariableArrayType>(AT)) { | |||
5691 | return getVariableArrayType(unqualElementType, | |||
5692 | VAT->getSizeExpr(), | |||
5693 | VAT->getSizeModifier(), | |||
5694 | VAT->getIndexTypeCVRQualifiers(), | |||
5695 | VAT->getBracketsRange()); | |||
5696 | } | |||
5697 | ||||
5698 | const auto *DSAT = cast<DependentSizedArrayType>(AT); | |||
5699 | return getDependentSizedArrayType(unqualElementType, DSAT->getSizeExpr(), | |||
5700 | DSAT->getSizeModifier(), 0, | |||
5701 | SourceRange()); | |||
5702 | } | |||
5703 | ||||
5704 | /// Attempt to unwrap two types that may both be array types with the same bound | |||
5705 | /// (or both be array |