File: | build/source/clang/lib/AST/ASTContext.cpp |
Warning: | line 3139, 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/NoSanitizeList.h" | |||
60 | #include "clang/Basic/ObjCRuntime.h" | |||
61 | #include "clang/Basic/SourceLocation.h" | |||
62 | #include "clang/Basic/SourceManager.h" | |||
63 | #include "clang/Basic/Specifiers.h" | |||
64 | #include "clang/Basic/TargetCXXABI.h" | |||
65 | #include "clang/Basic/TargetInfo.h" | |||
66 | #include "clang/Basic/XRayLists.h" | |||
67 | #include "llvm/ADT/APFixedPoint.h" | |||
68 | #include "llvm/ADT/APInt.h" | |||
69 | #include "llvm/ADT/APSInt.h" | |||
70 | #include "llvm/ADT/ArrayRef.h" | |||
71 | #include "llvm/ADT/DenseMap.h" | |||
72 | #include "llvm/ADT/DenseSet.h" | |||
73 | #include "llvm/ADT/FoldingSet.h" | |||
74 | #include "llvm/ADT/PointerUnion.h" | |||
75 | #include "llvm/ADT/STLExtras.h" | |||
76 | #include "llvm/ADT/SmallPtrSet.h" | |||
77 | #include "llvm/ADT/SmallVector.h" | |||
78 | #include "llvm/ADT/StringExtras.h" | |||
79 | #include "llvm/ADT/StringRef.h" | |||
80 | #include "llvm/Frontend/OpenMP/OMPIRBuilder.h" | |||
81 | #include "llvm/Support/Capacity.h" | |||
82 | #include "llvm/Support/Casting.h" | |||
83 | #include "llvm/Support/Compiler.h" | |||
84 | #include "llvm/Support/ErrorHandling.h" | |||
85 | #include "llvm/Support/MD5.h" | |||
86 | #include "llvm/Support/MathExtras.h" | |||
87 | #include "llvm/Support/raw_ostream.h" | |||
88 | #include "llvm/TargetParser/RISCVTargetParser.h" | |||
89 | #include "llvm/TargetParser/Triple.h" | |||
90 | #include <algorithm> | |||
91 | #include <cassert> | |||
92 | #include <cstddef> | |||
93 | #include <cstdint> | |||
94 | #include <cstdlib> | |||
95 | #include <map> | |||
96 | #include <memory> | |||
97 | #include <optional> | |||
98 | #include <string> | |||
99 | #include <tuple> | |||
100 | #include <utility> | |||
101 | ||||
102 | using namespace clang; | |||
103 | ||||
104 | enum FloatingRank { | |||
105 | BFloat16Rank, | |||
106 | Float16Rank, | |||
107 | HalfRank, | |||
108 | FloatRank, | |||
109 | DoubleRank, | |||
110 | LongDoubleRank, | |||
111 | Float128Rank, | |||
112 | Ibm128Rank | |||
113 | }; | |||
114 | ||||
115 | /// \returns location that is relevant when searching for Doc comments related | |||
116 | /// to \p D. | |||
117 | static SourceLocation getDeclLocForCommentSearch(const Decl *D, | |||
118 | SourceManager &SourceMgr) { | |||
119 | assert(D)(static_cast <bool> (D) ? void (0) : __assert_fail ("D" , "clang/lib/AST/ASTContext.cpp", 119, __extension__ __PRETTY_FUNCTION__ )); | |||
120 | ||||
121 | // User can not attach documentation to implicit declarations. | |||
122 | if (D->isImplicit()) | |||
123 | return {}; | |||
124 | ||||
125 | // User can not attach documentation to implicit instantiations. | |||
126 | if (const auto *FD = dyn_cast<FunctionDecl>(D)) { | |||
127 | if (FD->getTemplateSpecializationKind() == TSK_ImplicitInstantiation) | |||
128 | return {}; | |||
129 | } | |||
130 | ||||
131 | if (const auto *VD = dyn_cast<VarDecl>(D)) { | |||
132 | if (VD->isStaticDataMember() && | |||
133 | VD->getTemplateSpecializationKind() == TSK_ImplicitInstantiation) | |||
134 | return {}; | |||
135 | } | |||
136 | ||||
137 | if (const auto *CRD = dyn_cast<CXXRecordDecl>(D)) { | |||
138 | if (CRD->getTemplateSpecializationKind() == TSK_ImplicitInstantiation) | |||
139 | return {}; | |||
140 | } | |||
141 | ||||
142 | if (const auto *CTSD = dyn_cast<ClassTemplateSpecializationDecl>(D)) { | |||
143 | TemplateSpecializationKind TSK = CTSD->getSpecializationKind(); | |||
144 | if (TSK == TSK_ImplicitInstantiation || | |||
145 | TSK == TSK_Undeclared) | |||
146 | return {}; | |||
147 | } | |||
148 | ||||
149 | if (const auto *ED = dyn_cast<EnumDecl>(D)) { | |||
150 | if (ED->getTemplateSpecializationKind() == TSK_ImplicitInstantiation) | |||
151 | return {}; | |||
152 | } | |||
153 | if (const auto *TD = dyn_cast<TagDecl>(D)) { | |||
154 | // When tag declaration (but not definition!) is part of the | |||
155 | // decl-specifier-seq of some other declaration, it doesn't get comment | |||
156 | if (TD->isEmbeddedInDeclarator() && !TD->isCompleteDefinition()) | |||
157 | return {}; | |||
158 | } | |||
159 | // TODO: handle comments for function parameters properly. | |||
160 | if (isa<ParmVarDecl>(D)) | |||
161 | return {}; | |||
162 | ||||
163 | // TODO: we could look up template parameter documentation in the template | |||
164 | // documentation. | |||
165 | if (isa<TemplateTypeParmDecl>(D) || | |||
166 | isa<NonTypeTemplateParmDecl>(D) || | |||
167 | isa<TemplateTemplateParmDecl>(D)) | |||
168 | return {}; | |||
169 | ||||
170 | // Find declaration location. | |||
171 | // For Objective-C declarations we generally don't expect to have multiple | |||
172 | // declarators, thus use declaration starting location as the "declaration | |||
173 | // location". | |||
174 | // For all other declarations multiple declarators are used quite frequently, | |||
175 | // so we use the location of the identifier as the "declaration location". | |||
176 | if (isa<ObjCMethodDecl>(D) || isa<ObjCContainerDecl>(D) || | |||
177 | isa<ObjCPropertyDecl>(D) || | |||
178 | isa<RedeclarableTemplateDecl>(D) || | |||
179 | isa<ClassTemplateSpecializationDecl>(D) || | |||
180 | // Allow association with Y across {} in `typedef struct X {} Y`. | |||
181 | isa<TypedefDecl>(D)) | |||
182 | return D->getBeginLoc(); | |||
183 | ||||
184 | const SourceLocation DeclLoc = D->getLocation(); | |||
185 | if (DeclLoc.isMacroID()) { | |||
186 | // There are (at least) three types of macros we care about here. | |||
187 | // | |||
188 | // 1. Macros that are used in the definition of a type outside the macro, | |||
189 | // with a comment attached at the macro call site. | |||
190 | // ``` | |||
191 | // #define MAKE_NAME(Foo) Name##Foo | |||
192 | // | |||
193 | // /// Comment is here, where we use the macro. | |||
194 | // struct MAKE_NAME(Foo) { | |||
195 | // int a; | |||
196 | // int b; | |||
197 | // }; | |||
198 | // ``` | |||
199 | // 2. Macros that define whole things along with the comment. | |||
200 | // ``` | |||
201 | // #define MAKE_METHOD(name) \ | |||
202 | // /** Comment is here, inside the macro. */ \ | |||
203 | // void name() {} | |||
204 | // | |||
205 | // struct S { | |||
206 | // MAKE_METHOD(f) | |||
207 | // } | |||
208 | // ``` | |||
209 | // 3. Macros that both declare a type and name a decl outside the macro. | |||
210 | // ``` | |||
211 | // /// Comment is here, where we use the macro. | |||
212 | // typedef NS_ENUM(NSInteger, Size) { | |||
213 | // SizeWidth, | |||
214 | // SizeHeight | |||
215 | // }; | |||
216 | // ``` | |||
217 | // In this case NS_ENUM declares am enum type, and uses the same name for | |||
218 | // the typedef declaration that appears outside the macro. The comment | |||
219 | // here should be applied to both declarations inside and outside the | |||
220 | // macro. | |||
221 | // | |||
222 | // We have found a Decl name that comes from inside a macro, but | |||
223 | // Decl::getLocation() returns the place where the macro is being called. | |||
224 | // If the declaration (and not just the name) resides inside the macro, | |||
225 | // then we want to map Decl::getLocation() into the macro to where the | |||
226 | // declaration and its attached comment (if any) were written. | |||
227 | // | |||
228 | // This mapping into the macro is done by mapping the location to its | |||
229 | // spelling location, however even if the declaration is inside a macro, | |||
230 | // the name's spelling can come from a macro argument (case 2 above). In | |||
231 | // this case mapping the location to the spelling location finds the | |||
232 | // argument's position (at `f` in MAKE_METHOD(`f`) above), which is not | |||
233 | // where the declaration and its comment are located. | |||
234 | // | |||
235 | // To avoid this issue, we make use of Decl::getBeginLocation() instead. | |||
236 | // While the declaration's position is where the name is written, the | |||
237 | // comment is always attached to the begining of the declaration, not to | |||
238 | // the name. | |||
239 | // | |||
240 | // In the first case, the begin location of the decl is outside the macro, | |||
241 | // at the location of `typedef`. This is where the comment is found as | |||
242 | // well. The begin location is not inside a macro, so it's spelling | |||
243 | // location is the same. | |||
244 | // | |||
245 | // In the second case, the begin location of the decl is the call to the | |||
246 | // macro, at `MAKE_METHOD`. However its spelling location is inside the | |||
247 | // the macro at the location of `void`. This is where the comment is found | |||
248 | // again. | |||
249 | // | |||
250 | // In the third case, there's no correct single behaviour. We want to use | |||
251 | // the comment outside the macro for the definition that's inside the macro. | |||
252 | // There is also a definition outside the macro, and we want the comment to | |||
253 | // apply to both. The cases we care about here is NS_ENUM() and | |||
254 | // NS_OPTIONS(). In general, if an enum is defined inside a macro, we should | |||
255 | // try to find the comment there. | |||
256 | ||||
257 | // This is handling case 3 for NS_ENUM() and NS_OPTIONS(), which define | |||
258 | // enum types inside the macro. | |||
259 | if (isa<EnumDecl>(D)) { | |||
260 | SourceLocation MacroCallLoc = SourceMgr.getExpansionLoc(DeclLoc); | |||
261 | if (auto BufferRef = | |||
262 | SourceMgr.getBufferOrNone(SourceMgr.getFileID(MacroCallLoc)); | |||
263 | BufferRef.has_value()) { | |||
264 | llvm::StringRef buffer = BufferRef->getBuffer().substr( | |||
265 | SourceMgr.getFileOffset(MacroCallLoc)); | |||
266 | if (buffer.starts_with("NS_ENUM(") || | |||
267 | buffer.starts_with("NS_OPTIONS(")) { | |||
268 | // We want to use the comment on the call to NS_ENUM and NS_OPTIONS | |||
269 | // macros for the types defined inside the macros, which is at the | |||
270 | // expansion location. | |||
271 | return MacroCallLoc; | |||
272 | } | |||
273 | } | |||
274 | } | |||
275 | return SourceMgr.getSpellingLoc(D->getBeginLoc()); | |||
276 | } | |||
277 | ||||
278 | return DeclLoc; | |||
279 | } | |||
280 | ||||
281 | RawComment *ASTContext::getRawCommentForDeclNoCacheImpl( | |||
282 | const Decl *D, const SourceLocation RepresentativeLocForDecl, | |||
283 | const std::map<unsigned, RawComment *> &CommentsInTheFile) const { | |||
284 | // If the declaration doesn't map directly to a location in a file, we | |||
285 | // can't find the comment. | |||
286 | if (RepresentativeLocForDecl.isInvalid() || | |||
287 | !RepresentativeLocForDecl.isFileID()) | |||
288 | return nullptr; | |||
289 | ||||
290 | // If there are no comments anywhere, we won't find anything. | |||
291 | if (CommentsInTheFile.empty()) | |||
292 | return nullptr; | |||
293 | ||||
294 | // Decompose the location for the declaration and find the beginning of the | |||
295 | // file buffer. | |||
296 | const std::pair<FileID, unsigned> DeclLocDecomp = | |||
297 | SourceMgr.getDecomposedLoc(RepresentativeLocForDecl); | |||
298 | ||||
299 | // Slow path. | |||
300 | auto OffsetCommentBehindDecl = | |||
301 | CommentsInTheFile.lower_bound(DeclLocDecomp.second); | |||
302 | ||||
303 | // First check whether we have a trailing comment. | |||
304 | if (OffsetCommentBehindDecl != CommentsInTheFile.end()) { | |||
305 | RawComment *CommentBehindDecl = OffsetCommentBehindDecl->second; | |||
306 | if ((CommentBehindDecl->isDocumentation() || | |||
307 | LangOpts.CommentOpts.ParseAllComments) && | |||
308 | CommentBehindDecl->isTrailingComment() && | |||
309 | (isa<FieldDecl>(D) || isa<EnumConstantDecl>(D) || isa<VarDecl>(D) || | |||
310 | isa<ObjCMethodDecl>(D) || isa<ObjCPropertyDecl>(D))) { | |||
311 | ||||
312 | // Check that Doxygen trailing comment comes after the declaration, starts | |||
313 | // on the same line and in the same file as the declaration. | |||
314 | if (SourceMgr.getLineNumber(DeclLocDecomp.first, DeclLocDecomp.second) == | |||
315 | Comments.getCommentBeginLine(CommentBehindDecl, DeclLocDecomp.first, | |||
316 | OffsetCommentBehindDecl->first)) { | |||
317 | return CommentBehindDecl; | |||
318 | } | |||
319 | } | |||
320 | } | |||
321 | ||||
322 | // The comment just after the declaration was not a trailing comment. | |||
323 | // Let's look at the previous comment. | |||
324 | if (OffsetCommentBehindDecl == CommentsInTheFile.begin()) | |||
325 | return nullptr; | |||
326 | ||||
327 | auto OffsetCommentBeforeDecl = --OffsetCommentBehindDecl; | |||
328 | RawComment *CommentBeforeDecl = OffsetCommentBeforeDecl->second; | |||
329 | ||||
330 | // Check that we actually have a non-member Doxygen comment. | |||
331 | if (!(CommentBeforeDecl->isDocumentation() || | |||
332 | LangOpts.CommentOpts.ParseAllComments) || | |||
333 | CommentBeforeDecl->isTrailingComment()) | |||
334 | return nullptr; | |||
335 | ||||
336 | // Decompose the end of the comment. | |||
337 | const unsigned CommentEndOffset = | |||
338 | Comments.getCommentEndOffset(CommentBeforeDecl); | |||
339 | ||||
340 | // Get the corresponding buffer. | |||
341 | bool Invalid = false; | |||
342 | const char *Buffer = SourceMgr.getBufferData(DeclLocDecomp.first, | |||
343 | &Invalid).data(); | |||
344 | if (Invalid) | |||
345 | return nullptr; | |||
346 | ||||
347 | // Extract text between the comment and declaration. | |||
348 | StringRef Text(Buffer + CommentEndOffset, | |||
349 | DeclLocDecomp.second - CommentEndOffset); | |||
350 | ||||
351 | // There should be no other declarations or preprocessor directives between | |||
352 | // comment and declaration. | |||
353 | if (Text.find_last_of(";{}#@") != StringRef::npos) | |||
354 | return nullptr; | |||
355 | ||||
356 | return CommentBeforeDecl; | |||
357 | } | |||
358 | ||||
359 | RawComment *ASTContext::getRawCommentForDeclNoCache(const Decl *D) const { | |||
360 | const SourceLocation DeclLoc = getDeclLocForCommentSearch(D, SourceMgr); | |||
361 | ||||
362 | // If the declaration doesn't map directly to a location in a file, we | |||
363 | // can't find the comment. | |||
364 | if (DeclLoc.isInvalid() || !DeclLoc.isFileID()) | |||
365 | return nullptr; | |||
366 | ||||
367 | if (ExternalSource && !CommentsLoaded) { | |||
368 | ExternalSource->ReadComments(); | |||
369 | CommentsLoaded = true; | |||
370 | } | |||
371 | ||||
372 | if (Comments.empty()) | |||
373 | return nullptr; | |||
374 | ||||
375 | const FileID File = SourceMgr.getDecomposedLoc(DeclLoc).first; | |||
376 | if (!File.isValid()) { | |||
377 | return nullptr; | |||
378 | } | |||
379 | const auto CommentsInThisFile = Comments.getCommentsInFile(File); | |||
380 | if (!CommentsInThisFile || CommentsInThisFile->empty()) | |||
381 | return nullptr; | |||
382 | ||||
383 | return getRawCommentForDeclNoCacheImpl(D, DeclLoc, *CommentsInThisFile); | |||
384 | } | |||
385 | ||||
386 | void ASTContext::addComment(const RawComment &RC) { | |||
387 | assert(LangOpts.RetainCommentsFromSystemHeaders ||(static_cast <bool> (LangOpts.RetainCommentsFromSystemHeaders || !SourceMgr.isInSystemHeader(RC.getSourceRange().getBegin( ))) ? void (0) : __assert_fail ("LangOpts.RetainCommentsFromSystemHeaders || !SourceMgr.isInSystemHeader(RC.getSourceRange().getBegin())" , "clang/lib/AST/ASTContext.cpp", 388, __extension__ __PRETTY_FUNCTION__ )) | |||
388 | !SourceMgr.isInSystemHeader(RC.getSourceRange().getBegin()))(static_cast <bool> (LangOpts.RetainCommentsFromSystemHeaders || !SourceMgr.isInSystemHeader(RC.getSourceRange().getBegin( ))) ? void (0) : __assert_fail ("LangOpts.RetainCommentsFromSystemHeaders || !SourceMgr.isInSystemHeader(RC.getSourceRange().getBegin())" , "clang/lib/AST/ASTContext.cpp", 388, __extension__ __PRETTY_FUNCTION__ )); | |||
389 | Comments.addComment(RC, LangOpts.CommentOpts, BumpAlloc); | |||
390 | } | |||
391 | ||||
392 | /// If we have a 'templated' declaration for a template, adjust 'D' to | |||
393 | /// refer to the actual template. | |||
394 | /// If we have an implicit instantiation, adjust 'D' to refer to template. | |||
395 | static const Decl &adjustDeclToTemplate(const Decl &D) { | |||
396 | if (const auto *FD = dyn_cast<FunctionDecl>(&D)) { | |||
397 | // Is this function declaration part of a function template? | |||
398 | if (const FunctionTemplateDecl *FTD = FD->getDescribedFunctionTemplate()) | |||
399 | return *FTD; | |||
400 | ||||
401 | // Nothing to do if function is not an implicit instantiation. | |||
402 | if (FD->getTemplateSpecializationKind() != TSK_ImplicitInstantiation) | |||
403 | return D; | |||
404 | ||||
405 | // Function is an implicit instantiation of a function template? | |||
406 | if (const FunctionTemplateDecl *FTD = FD->getPrimaryTemplate()) | |||
407 | return *FTD; | |||
408 | ||||
409 | // Function is instantiated from a member definition of a class template? | |||
410 | if (const FunctionDecl *MemberDecl = | |||
411 | FD->getInstantiatedFromMemberFunction()) | |||
412 | return *MemberDecl; | |||
413 | ||||
414 | return D; | |||
415 | } | |||
416 | if (const auto *VD = dyn_cast<VarDecl>(&D)) { | |||
417 | // Static data member is instantiated from a member definition of a class | |||
418 | // template? | |||
419 | if (VD->isStaticDataMember()) | |||
420 | if (const VarDecl *MemberDecl = VD->getInstantiatedFromStaticDataMember()) | |||
421 | return *MemberDecl; | |||
422 | ||||
423 | return D; | |||
424 | } | |||
425 | if (const auto *CRD = dyn_cast<CXXRecordDecl>(&D)) { | |||
426 | // Is this class declaration part of a class template? | |||
427 | if (const ClassTemplateDecl *CTD = CRD->getDescribedClassTemplate()) | |||
428 | return *CTD; | |||
429 | ||||
430 | // Class is an implicit instantiation of a class template or partial | |||
431 | // specialization? | |||
432 | if (const auto *CTSD = dyn_cast<ClassTemplateSpecializationDecl>(CRD)) { | |||
433 | if (CTSD->getSpecializationKind() != TSK_ImplicitInstantiation) | |||
434 | return D; | |||
435 | llvm::PointerUnion<ClassTemplateDecl *, | |||
436 | ClassTemplatePartialSpecializationDecl *> | |||
437 | PU = CTSD->getSpecializedTemplateOrPartial(); | |||
438 | return PU.is<ClassTemplateDecl *>() | |||
439 | ? *static_cast<const Decl *>(PU.get<ClassTemplateDecl *>()) | |||
440 | : *static_cast<const Decl *>( | |||
441 | PU.get<ClassTemplatePartialSpecializationDecl *>()); | |||
442 | } | |||
443 | ||||
444 | // Class is instantiated from a member definition of a class template? | |||
445 | if (const MemberSpecializationInfo *Info = | |||
446 | CRD->getMemberSpecializationInfo()) | |||
447 | return *Info->getInstantiatedFrom(); | |||
448 | ||||
449 | return D; | |||
450 | } | |||
451 | if (const auto *ED = dyn_cast<EnumDecl>(&D)) { | |||
452 | // Enum is instantiated from a member definition of a class template? | |||
453 | if (const EnumDecl *MemberDecl = ED->getInstantiatedFromMemberEnum()) | |||
454 | return *MemberDecl; | |||
455 | ||||
456 | return D; | |||
457 | } | |||
458 | // FIXME: Adjust alias templates? | |||
459 | return D; | |||
460 | } | |||
461 | ||||
462 | const RawComment *ASTContext::getRawCommentForAnyRedecl( | |||
463 | const Decl *D, | |||
464 | const Decl **OriginalDecl) const { | |||
465 | if (!D) { | |||
466 | if (OriginalDecl) | |||
467 | OriginalDecl = nullptr; | |||
468 | return nullptr; | |||
469 | } | |||
470 | ||||
471 | D = &adjustDeclToTemplate(*D); | |||
472 | ||||
473 | // Any comment directly attached to D? | |||
474 | { | |||
475 | auto DeclComment = DeclRawComments.find(D); | |||
476 | if (DeclComment != DeclRawComments.end()) { | |||
477 | if (OriginalDecl) | |||
478 | *OriginalDecl = D; | |||
479 | return DeclComment->second; | |||
480 | } | |||
481 | } | |||
482 | ||||
483 | // Any comment attached to any redeclaration of D? | |||
484 | const Decl *CanonicalD = D->getCanonicalDecl(); | |||
485 | if (!CanonicalD) | |||
486 | return nullptr; | |||
487 | ||||
488 | { | |||
489 | auto RedeclComment = RedeclChainComments.find(CanonicalD); | |||
490 | if (RedeclComment != RedeclChainComments.end()) { | |||
491 | if (OriginalDecl) | |||
492 | *OriginalDecl = RedeclComment->second; | |||
493 | auto CommentAtRedecl = DeclRawComments.find(RedeclComment->second); | |||
494 | assert(CommentAtRedecl != DeclRawComments.end() &&(static_cast <bool> (CommentAtRedecl != DeclRawComments .end() && "This decl is supposed to have comment attached." ) ? void (0) : __assert_fail ("CommentAtRedecl != DeclRawComments.end() && \"This decl is supposed to have comment attached.\"" , "clang/lib/AST/ASTContext.cpp", 495, __extension__ __PRETTY_FUNCTION__ )) | |||
495 | "This decl is supposed to have comment attached.")(static_cast <bool> (CommentAtRedecl != DeclRawComments .end() && "This decl is supposed to have comment attached." ) ? void (0) : __assert_fail ("CommentAtRedecl != DeclRawComments.end() && \"This decl is supposed to have comment attached.\"" , "clang/lib/AST/ASTContext.cpp", 495, __extension__ __PRETTY_FUNCTION__ )); | |||
496 | return CommentAtRedecl->second; | |||
497 | } | |||
498 | } | |||
499 | ||||
500 | // Any redeclarations of D that we haven't checked for comments yet? | |||
501 | // We can't use DenseMap::iterator directly since it'd get invalid. | |||
502 | auto LastCheckedRedecl = [this, CanonicalD]() -> const Decl * { | |||
503 | auto LookupRes = CommentlessRedeclChains.find(CanonicalD); | |||
504 | if (LookupRes != CommentlessRedeclChains.end()) | |||
505 | return LookupRes->second; | |||
506 | return nullptr; | |||
507 | }(); | |||
508 | ||||
509 | for (const auto Redecl : D->redecls()) { | |||
510 | assert(Redecl)(static_cast <bool> (Redecl) ? void (0) : __assert_fail ("Redecl", "clang/lib/AST/ASTContext.cpp", 510, __extension__ __PRETTY_FUNCTION__)); | |||
511 | // Skip all redeclarations that have been checked previously. | |||
512 | if (LastCheckedRedecl) { | |||
513 | if (LastCheckedRedecl == Redecl) { | |||
514 | LastCheckedRedecl = nullptr; | |||
515 | } | |||
516 | continue; | |||
517 | } | |||
518 | const RawComment *RedeclComment = getRawCommentForDeclNoCache(Redecl); | |||
519 | if (RedeclComment) { | |||
520 | cacheRawCommentForDecl(*Redecl, *RedeclComment); | |||
521 | if (OriginalDecl) | |||
522 | *OriginalDecl = Redecl; | |||
523 | return RedeclComment; | |||
524 | } | |||
525 | CommentlessRedeclChains[CanonicalD] = Redecl; | |||
526 | } | |||
527 | ||||
528 | if (OriginalDecl) | |||
529 | *OriginalDecl = nullptr; | |||
530 | return nullptr; | |||
531 | } | |||
532 | ||||
533 | void ASTContext::cacheRawCommentForDecl(const Decl &OriginalD, | |||
534 | const RawComment &Comment) const { | |||
535 | assert(Comment.isDocumentation() || LangOpts.CommentOpts.ParseAllComments)(static_cast <bool> (Comment.isDocumentation() || LangOpts .CommentOpts.ParseAllComments) ? void (0) : __assert_fail ("Comment.isDocumentation() || LangOpts.CommentOpts.ParseAllComments" , "clang/lib/AST/ASTContext.cpp", 535, __extension__ __PRETTY_FUNCTION__ )); | |||
536 | DeclRawComments.try_emplace(&OriginalD, &Comment); | |||
537 | const Decl *const CanonicalDecl = OriginalD.getCanonicalDecl(); | |||
538 | RedeclChainComments.try_emplace(CanonicalDecl, &OriginalD); | |||
539 | CommentlessRedeclChains.erase(CanonicalDecl); | |||
540 | } | |||
541 | ||||
542 | static void addRedeclaredMethods(const ObjCMethodDecl *ObjCMethod, | |||
543 | SmallVectorImpl<const NamedDecl *> &Redeclared) { | |||
544 | const DeclContext *DC = ObjCMethod->getDeclContext(); | |||
545 | if (const auto *IMD = dyn_cast<ObjCImplDecl>(DC)) { | |||
546 | const ObjCInterfaceDecl *ID = IMD->getClassInterface(); | |||
547 | if (!ID) | |||
548 | return; | |||
549 | // Add redeclared method here. | |||
550 | for (const auto *Ext : ID->known_extensions()) { | |||
551 | if (ObjCMethodDecl *RedeclaredMethod = | |||
552 | Ext->getMethod(ObjCMethod->getSelector(), | |||
553 | ObjCMethod->isInstanceMethod())) | |||
554 | Redeclared.push_back(RedeclaredMethod); | |||
555 | } | |||
556 | } | |||
557 | } | |||
558 | ||||
559 | void ASTContext::attachCommentsToJustParsedDecls(ArrayRef<Decl *> Decls, | |||
560 | const Preprocessor *PP) { | |||
561 | if (Comments.empty() || Decls.empty()) | |||
562 | return; | |||
563 | ||||
564 | FileID File; | |||
565 | for (Decl *D : Decls) { | |||
566 | SourceLocation Loc = D->getLocation(); | |||
567 | if (Loc.isValid()) { | |||
568 | // See if there are any new comments that are not attached to a decl. | |||
569 | // The location doesn't have to be precise - we care only about the file. | |||
570 | File = SourceMgr.getDecomposedLoc(Loc).first; | |||
571 | break; | |||
572 | } | |||
573 | } | |||
574 | ||||
575 | if (File.isInvalid()) | |||
576 | return; | |||
577 | ||||
578 | auto CommentsInThisFile = Comments.getCommentsInFile(File); | |||
579 | if (!CommentsInThisFile || CommentsInThisFile->empty() || | |||
580 | CommentsInThisFile->rbegin()->second->isAttached()) | |||
581 | return; | |||
582 | ||||
583 | // There is at least one comment not attached to a decl. | |||
584 | // Maybe it should be attached to one of Decls? | |||
585 | // | |||
586 | // Note that this way we pick up not only comments that precede the | |||
587 | // declaration, but also comments that *follow* the declaration -- thanks to | |||
588 | // the lookahead in the lexer: we've consumed the semicolon and looked | |||
589 | // ahead through comments. | |||
590 | ||||
591 | for (const Decl *D : Decls) { | |||
592 | assert(D)(static_cast <bool> (D) ? void (0) : __assert_fail ("D" , "clang/lib/AST/ASTContext.cpp", 592, __extension__ __PRETTY_FUNCTION__ )); | |||
593 | if (D->isInvalidDecl()) | |||
594 | continue; | |||
595 | ||||
596 | D = &adjustDeclToTemplate(*D); | |||
597 | ||||
598 | const SourceLocation DeclLoc = getDeclLocForCommentSearch(D, SourceMgr); | |||
599 | ||||
600 | if (DeclLoc.isInvalid() || !DeclLoc.isFileID()) | |||
601 | continue; | |||
602 | ||||
603 | if (DeclRawComments.count(D) > 0) | |||
604 | continue; | |||
605 | ||||
606 | if (RawComment *const DocComment = | |||
607 | getRawCommentForDeclNoCacheImpl(D, DeclLoc, *CommentsInThisFile)) { | |||
608 | cacheRawCommentForDecl(*D, *DocComment); | |||
609 | comments::FullComment *FC = DocComment->parse(*this, PP, D); | |||
610 | ParsedComments[D->getCanonicalDecl()] = FC; | |||
611 | } | |||
612 | } | |||
613 | } | |||
614 | ||||
615 | comments::FullComment *ASTContext::cloneFullComment(comments::FullComment *FC, | |||
616 | const Decl *D) const { | |||
617 | auto *ThisDeclInfo = new (*this) comments::DeclInfo; | |||
618 | ThisDeclInfo->CommentDecl = D; | |||
619 | ThisDeclInfo->IsFilled = false; | |||
620 | ThisDeclInfo->fill(); | |||
621 | ThisDeclInfo->CommentDecl = FC->getDecl(); | |||
622 | if (!ThisDeclInfo->TemplateParameters) | |||
623 | ThisDeclInfo->TemplateParameters = FC->getDeclInfo()->TemplateParameters; | |||
624 | comments::FullComment *CFC = | |||
625 | new (*this) comments::FullComment(FC->getBlocks(), | |||
626 | ThisDeclInfo); | |||
627 | return CFC; | |||
628 | } | |||
629 | ||||
630 | comments::FullComment *ASTContext::getLocalCommentForDeclUncached(const Decl *D) const { | |||
631 | const RawComment *RC = getRawCommentForDeclNoCache(D); | |||
632 | return RC ? RC->parse(*this, nullptr, D) : nullptr; | |||
633 | } | |||
634 | ||||
635 | comments::FullComment *ASTContext::getCommentForDecl( | |||
636 | const Decl *D, | |||
637 | const Preprocessor *PP) const { | |||
638 | if (!D || D->isInvalidDecl()) | |||
639 | return nullptr; | |||
640 | D = &adjustDeclToTemplate(*D); | |||
641 | ||||
642 | const Decl *Canonical = D->getCanonicalDecl(); | |||
643 | llvm::DenseMap<const Decl *, comments::FullComment *>::iterator Pos = | |||
644 | ParsedComments.find(Canonical); | |||
645 | ||||
646 | if (Pos != ParsedComments.end()) { | |||
647 | if (Canonical != D) { | |||
648 | comments::FullComment *FC = Pos->second; | |||
649 | comments::FullComment *CFC = cloneFullComment(FC, D); | |||
650 | return CFC; | |||
651 | } | |||
652 | return Pos->second; | |||
653 | } | |||
654 | ||||
655 | const Decl *OriginalDecl = nullptr; | |||
656 | ||||
657 | const RawComment *RC = getRawCommentForAnyRedecl(D, &OriginalDecl); | |||
658 | if (!RC) { | |||
659 | if (isa<ObjCMethodDecl>(D) || isa<FunctionDecl>(D)) { | |||
660 | SmallVector<const NamedDecl*, 8> Overridden; | |||
661 | const auto *OMD = dyn_cast<ObjCMethodDecl>(D); | |||
662 | if (OMD && OMD->isPropertyAccessor()) | |||
663 | if (const ObjCPropertyDecl *PDecl = OMD->findPropertyDecl()) | |||
664 | if (comments::FullComment *FC = getCommentForDecl(PDecl, PP)) | |||
665 | return cloneFullComment(FC, D); | |||
666 | if (OMD) | |||
667 | addRedeclaredMethods(OMD, Overridden); | |||
668 | getOverriddenMethods(dyn_cast<NamedDecl>(D), Overridden); | |||
669 | for (unsigned i = 0, e = Overridden.size(); i < e; i++) | |||
670 | if (comments::FullComment *FC = getCommentForDecl(Overridden[i], PP)) | |||
671 | return cloneFullComment(FC, D); | |||
672 | } | |||
673 | else if (const auto *TD = dyn_cast<TypedefNameDecl>(D)) { | |||
674 | // Attach any tag type's documentation to its typedef if latter | |||
675 | // does not have one of its own. | |||
676 | QualType QT = TD->getUnderlyingType(); | |||
677 | if (const auto *TT = QT->getAs<TagType>()) | |||
678 | if (const Decl *TD = TT->getDecl()) | |||
679 | if (comments::FullComment *FC = getCommentForDecl(TD, PP)) | |||
680 | return cloneFullComment(FC, D); | |||
681 | } | |||
682 | else if (const auto *IC = dyn_cast<ObjCInterfaceDecl>(D)) { | |||
683 | while (IC->getSuperClass()) { | |||
684 | IC = IC->getSuperClass(); | |||
685 | if (comments::FullComment *FC = getCommentForDecl(IC, PP)) | |||
686 | return cloneFullComment(FC, D); | |||
687 | } | |||
688 | } | |||
689 | else if (const auto *CD = dyn_cast<ObjCCategoryDecl>(D)) { | |||
690 | if (const ObjCInterfaceDecl *IC = CD->getClassInterface()) | |||
691 | if (comments::FullComment *FC = getCommentForDecl(IC, PP)) | |||
692 | return cloneFullComment(FC, D); | |||
693 | } | |||
694 | else if (const auto *RD = dyn_cast<CXXRecordDecl>(D)) { | |||
695 | if (!(RD = RD->getDefinition())) | |||
696 | return nullptr; | |||
697 | // Check non-virtual bases. | |||
698 | for (const auto &I : RD->bases()) { | |||
699 | if (I.isVirtual() || (I.getAccessSpecifier() != AS_public)) | |||
700 | continue; | |||
701 | QualType Ty = I.getType(); | |||
702 | if (Ty.isNull()) | |||
703 | continue; | |||
704 | if (const CXXRecordDecl *NonVirtualBase = Ty->getAsCXXRecordDecl()) { | |||
705 | if (!(NonVirtualBase= NonVirtualBase->getDefinition())) | |||
706 | continue; | |||
707 | ||||
708 | if (comments::FullComment *FC = getCommentForDecl((NonVirtualBase), PP)) | |||
709 | return cloneFullComment(FC, D); | |||
710 | } | |||
711 | } | |||
712 | // Check virtual bases. | |||
713 | for (const auto &I : RD->vbases()) { | |||
714 | if (I.getAccessSpecifier() != AS_public) | |||
715 | continue; | |||
716 | QualType Ty = I.getType(); | |||
717 | if (Ty.isNull()) | |||
718 | continue; | |||
719 | if (const CXXRecordDecl *VirtualBase = Ty->getAsCXXRecordDecl()) { | |||
720 | if (!(VirtualBase= VirtualBase->getDefinition())) | |||
721 | continue; | |||
722 | if (comments::FullComment *FC = getCommentForDecl((VirtualBase), PP)) | |||
723 | return cloneFullComment(FC, D); | |||
724 | } | |||
725 | } | |||
726 | } | |||
727 | return nullptr; | |||
728 | } | |||
729 | ||||
730 | // If the RawComment was attached to other redeclaration of this Decl, we | |||
731 | // should parse the comment in context of that other Decl. This is important | |||
732 | // because comments can contain references to parameter names which can be | |||
733 | // different across redeclarations. | |||
734 | if (D != OriginalDecl && OriginalDecl) | |||
735 | return getCommentForDecl(OriginalDecl, PP); | |||
736 | ||||
737 | comments::FullComment *FC = RC->parse(*this, PP, D); | |||
738 | ParsedComments[Canonical] = FC; | |||
739 | return FC; | |||
740 | } | |||
741 | ||||
742 | void | |||
743 | ASTContext::CanonicalTemplateTemplateParm::Profile(llvm::FoldingSetNodeID &ID, | |||
744 | const ASTContext &C, | |||
745 | TemplateTemplateParmDecl *Parm) { | |||
746 | ID.AddInteger(Parm->getDepth()); | |||
747 | ID.AddInteger(Parm->getPosition()); | |||
748 | ID.AddBoolean(Parm->isParameterPack()); | |||
749 | ||||
750 | TemplateParameterList *Params = Parm->getTemplateParameters(); | |||
751 | ID.AddInteger(Params->size()); | |||
752 | for (TemplateParameterList::const_iterator P = Params->begin(), | |||
753 | PEnd = Params->end(); | |||
754 | P != PEnd; ++P) { | |||
755 | if (const auto *TTP = dyn_cast<TemplateTypeParmDecl>(*P)) { | |||
756 | ID.AddInteger(0); | |||
757 | ID.AddBoolean(TTP->isParameterPack()); | |||
758 | if (TTP->isExpandedParameterPack()) { | |||
759 | ID.AddBoolean(true); | |||
760 | ID.AddInteger(TTP->getNumExpansionParameters()); | |||
761 | } else | |||
762 | ID.AddBoolean(false); | |||
763 | continue; | |||
764 | } | |||
765 | ||||
766 | if (const auto *NTTP = dyn_cast<NonTypeTemplateParmDecl>(*P)) { | |||
767 | ID.AddInteger(1); | |||
768 | ID.AddBoolean(NTTP->isParameterPack()); | |||
769 | ID.AddPointer(C.getUnconstrainedType(C.getCanonicalType(NTTP->getType())) | |||
770 | .getAsOpaquePtr()); | |||
771 | if (NTTP->isExpandedParameterPack()) { | |||
772 | ID.AddBoolean(true); | |||
773 | ID.AddInteger(NTTP->getNumExpansionTypes()); | |||
774 | for (unsigned I = 0, N = NTTP->getNumExpansionTypes(); I != N; ++I) { | |||
775 | QualType T = NTTP->getExpansionType(I); | |||
776 | ID.AddPointer(T.getCanonicalType().getAsOpaquePtr()); | |||
777 | } | |||
778 | } else | |||
779 | ID.AddBoolean(false); | |||
780 | continue; | |||
781 | } | |||
782 | ||||
783 | auto *TTP = cast<TemplateTemplateParmDecl>(*P); | |||
784 | ID.AddInteger(2); | |||
785 | Profile(ID, C, TTP); | |||
786 | } | |||
787 | } | |||
788 | ||||
789 | TemplateTemplateParmDecl * | |||
790 | ASTContext::getCanonicalTemplateTemplateParmDecl( | |||
791 | TemplateTemplateParmDecl *TTP) const { | |||
792 | // Check if we already have a canonical template template parameter. | |||
793 | llvm::FoldingSetNodeID ID; | |||
794 | CanonicalTemplateTemplateParm::Profile(ID, *this, TTP); | |||
795 | void *InsertPos = nullptr; | |||
796 | CanonicalTemplateTemplateParm *Canonical | |||
797 | = CanonTemplateTemplateParms.FindNodeOrInsertPos(ID, InsertPos); | |||
798 | if (Canonical) | |||
799 | return Canonical->getParam(); | |||
800 | ||||
801 | // Build a canonical template parameter list. | |||
802 | TemplateParameterList *Params = TTP->getTemplateParameters(); | |||
803 | SmallVector<NamedDecl *, 4> CanonParams; | |||
804 | CanonParams.reserve(Params->size()); | |||
805 | for (TemplateParameterList::const_iterator P = Params->begin(), | |||
806 | PEnd = Params->end(); | |||
807 | P != PEnd; ++P) { | |||
808 | // Note that, per C++20 [temp.over.link]/6, when determining whether | |||
809 | // template-parameters are equivalent, constraints are ignored. | |||
810 | if (const auto *TTP = dyn_cast<TemplateTypeParmDecl>(*P)) { | |||
811 | TemplateTypeParmDecl *NewTTP = TemplateTypeParmDecl::Create( | |||
812 | *this, getTranslationUnitDecl(), SourceLocation(), SourceLocation(), | |||
813 | TTP->getDepth(), TTP->getIndex(), nullptr, false, | |||
814 | TTP->isParameterPack(), /*HasTypeConstraint=*/false, | |||
815 | TTP->isExpandedParameterPack() | |||
816 | ? std::optional<unsigned>(TTP->getNumExpansionParameters()) | |||
817 | : std::nullopt); | |||
818 | CanonParams.push_back(NewTTP); | |||
819 | } else if (const auto *NTTP = dyn_cast<NonTypeTemplateParmDecl>(*P)) { | |||
820 | QualType T = getUnconstrainedType(getCanonicalType(NTTP->getType())); | |||
821 | TypeSourceInfo *TInfo = getTrivialTypeSourceInfo(T); | |||
822 | NonTypeTemplateParmDecl *Param; | |||
823 | if (NTTP->isExpandedParameterPack()) { | |||
824 | SmallVector<QualType, 2> ExpandedTypes; | |||
825 | SmallVector<TypeSourceInfo *, 2> ExpandedTInfos; | |||
826 | for (unsigned I = 0, N = NTTP->getNumExpansionTypes(); I != N; ++I) { | |||
827 | ExpandedTypes.push_back(getCanonicalType(NTTP->getExpansionType(I))); | |||
828 | ExpandedTInfos.push_back( | |||
829 | getTrivialTypeSourceInfo(ExpandedTypes.back())); | |||
830 | } | |||
831 | ||||
832 | Param = NonTypeTemplateParmDecl::Create(*this, getTranslationUnitDecl(), | |||
833 | SourceLocation(), | |||
834 | SourceLocation(), | |||
835 | NTTP->getDepth(), | |||
836 | NTTP->getPosition(), nullptr, | |||
837 | T, | |||
838 | TInfo, | |||
839 | ExpandedTypes, | |||
840 | ExpandedTInfos); | |||
841 | } else { | |||
842 | Param = NonTypeTemplateParmDecl::Create(*this, getTranslationUnitDecl(), | |||
843 | SourceLocation(), | |||
844 | SourceLocation(), | |||
845 | NTTP->getDepth(), | |||
846 | NTTP->getPosition(), nullptr, | |||
847 | T, | |||
848 | NTTP->isParameterPack(), | |||
849 | TInfo); | |||
850 | } | |||
851 | CanonParams.push_back(Param); | |||
852 | } else | |||
853 | CanonParams.push_back(getCanonicalTemplateTemplateParmDecl( | |||
854 | cast<TemplateTemplateParmDecl>(*P))); | |||
855 | } | |||
856 | ||||
857 | TemplateTemplateParmDecl *CanonTTP = TemplateTemplateParmDecl::Create( | |||
858 | *this, getTranslationUnitDecl(), SourceLocation(), TTP->getDepth(), | |||
859 | TTP->getPosition(), TTP->isParameterPack(), nullptr, | |||
860 | TemplateParameterList::Create(*this, SourceLocation(), SourceLocation(), | |||
861 | CanonParams, SourceLocation(), | |||
862 | /*RequiresClause=*/nullptr)); | |||
863 | ||||
864 | // Get the new insert position for the node we care about. | |||
865 | Canonical = CanonTemplateTemplateParms.FindNodeOrInsertPos(ID, InsertPos); | |||
866 | assert(!Canonical && "Shouldn't be in the map!")(static_cast <bool> (!Canonical && "Shouldn't be in the map!" ) ? void (0) : __assert_fail ("!Canonical && \"Shouldn't be in the map!\"" , "clang/lib/AST/ASTContext.cpp", 866, __extension__ __PRETTY_FUNCTION__ )); | |||
867 | (void)Canonical; | |||
868 | ||||
869 | // Create the canonical template template parameter entry. | |||
870 | Canonical = new (*this) CanonicalTemplateTemplateParm(CanonTTP); | |||
871 | CanonTemplateTemplateParms.InsertNode(Canonical, InsertPos); | |||
872 | return CanonTTP; | |||
873 | } | |||
874 | ||||
875 | TargetCXXABI::Kind ASTContext::getCXXABIKind() const { | |||
876 | auto Kind = getTargetInfo().getCXXABI().getKind(); | |||
877 | return getLangOpts().CXXABI.value_or(Kind); | |||
878 | } | |||
879 | ||||
880 | CXXABI *ASTContext::createCXXABI(const TargetInfo &T) { | |||
881 | if (!LangOpts.CPlusPlus) return nullptr; | |||
882 | ||||
883 | switch (getCXXABIKind()) { | |||
884 | case TargetCXXABI::AppleARM64: | |||
885 | case TargetCXXABI::Fuchsia: | |||
886 | case TargetCXXABI::GenericARM: // Same as Itanium at this level | |||
887 | case TargetCXXABI::iOS: | |||
888 | case TargetCXXABI::WatchOS: | |||
889 | case TargetCXXABI::GenericAArch64: | |||
890 | case TargetCXXABI::GenericMIPS: | |||
891 | case TargetCXXABI::GenericItanium: | |||
892 | case TargetCXXABI::WebAssembly: | |||
893 | case TargetCXXABI::XL: | |||
894 | return CreateItaniumCXXABI(*this); | |||
895 | case TargetCXXABI::Microsoft: | |||
896 | return CreateMicrosoftCXXABI(*this); | |||
897 | } | |||
898 | llvm_unreachable("Invalid CXXABI type!")::llvm::llvm_unreachable_internal("Invalid CXXABI type!", "clang/lib/AST/ASTContext.cpp" , 898); | |||
899 | } | |||
900 | ||||
901 | interp::Context &ASTContext::getInterpContext() { | |||
902 | if (!InterpContext) { | |||
903 | InterpContext.reset(new interp::Context(*this)); | |||
904 | } | |||
905 | return *InterpContext.get(); | |||
906 | } | |||
907 | ||||
908 | ParentMapContext &ASTContext::getParentMapContext() { | |||
909 | if (!ParentMapCtx) | |||
910 | ParentMapCtx.reset(new ParentMapContext(*this)); | |||
911 | return *ParentMapCtx.get(); | |||
912 | } | |||
913 | ||||
914 | static bool isAddrSpaceMapManglingEnabled(const TargetInfo &TI, | |||
915 | const LangOptions &LangOpts) { | |||
916 | switch (LangOpts.getAddressSpaceMapMangling()) { | |||
917 | case LangOptions::ASMM_Target: | |||
918 | return TI.useAddressSpaceMapMangling(); | |||
919 | case LangOptions::ASMM_On: | |||
920 | return true; | |||
921 | case LangOptions::ASMM_Off: | |||
922 | return false; | |||
923 | } | |||
924 | llvm_unreachable("getAddressSpaceMapMangling() doesn't cover anything.")::llvm::llvm_unreachable_internal("getAddressSpaceMapMangling() doesn't cover anything." , "clang/lib/AST/ASTContext.cpp", 924); | |||
925 | } | |||
926 | ||||
927 | ASTContext::ASTContext(LangOptions &LOpts, SourceManager &SM, | |||
928 | IdentifierTable &idents, SelectorTable &sels, | |||
929 | Builtin::Context &builtins, TranslationUnitKind TUKind) | |||
930 | : ConstantArrayTypes(this_(), ConstantArrayTypesLog2InitSize), | |||
931 | FunctionProtoTypes(this_(), FunctionProtoTypesLog2InitSize), | |||
932 | TemplateSpecializationTypes(this_()), | |||
933 | DependentTemplateSpecializationTypes(this_()), AutoTypes(this_()), | |||
934 | SubstTemplateTemplateParmPacks(this_()), | |||
935 | CanonTemplateTemplateParms(this_()), SourceMgr(SM), LangOpts(LOpts), | |||
936 | NoSanitizeL(new NoSanitizeList(LangOpts.NoSanitizeFiles, SM)), | |||
937 | XRayFilter(new XRayFunctionFilter(LangOpts.XRayAlwaysInstrumentFiles, | |||
938 | LangOpts.XRayNeverInstrumentFiles, | |||
939 | LangOpts.XRayAttrListFiles, SM)), | |||
940 | ProfList(new ProfileList(LangOpts.ProfileListFiles, SM)), | |||
941 | PrintingPolicy(LOpts), Idents(idents), Selectors(sels), | |||
942 | BuiltinInfo(builtins), TUKind(TUKind), DeclarationNames(*this), | |||
943 | Comments(SM), CommentCommandTraits(BumpAlloc, LOpts.CommentOpts), | |||
944 | CompCategories(this_()), LastSDM(nullptr, 0) { | |||
945 | addTranslationUnitDecl(); | |||
946 | } | |||
947 | ||||
948 | void ASTContext::cleanup() { | |||
949 | // Release the DenseMaps associated with DeclContext objects. | |||
950 | // FIXME: Is this the ideal solution? | |||
951 | ReleaseDeclContextMaps(); | |||
952 | ||||
953 | // Call all of the deallocation functions on all of their targets. | |||
954 | for (auto &Pair : Deallocations) | |||
955 | (Pair.first)(Pair.second); | |||
956 | Deallocations.clear(); | |||
957 | ||||
958 | // ASTRecordLayout objects in ASTRecordLayouts must always be destroyed | |||
959 | // because they can contain DenseMaps. | |||
960 | for (llvm::DenseMap<const ObjCContainerDecl*, | |||
961 | const ASTRecordLayout*>::iterator | |||
962 | I = ObjCLayouts.begin(), E = ObjCLayouts.end(); I != E; ) | |||
963 | // Increment in loop to prevent using deallocated memory. | |||
964 | if (auto *R = const_cast<ASTRecordLayout *>((I++)->second)) | |||
965 | R->Destroy(*this); | |||
966 | ObjCLayouts.clear(); | |||
967 | ||||
968 | for (llvm::DenseMap<const RecordDecl*, const ASTRecordLayout*>::iterator | |||
969 | I = ASTRecordLayouts.begin(), E = ASTRecordLayouts.end(); I != E; ) { | |||
970 | // Increment in loop to prevent using deallocated memory. | |||
971 | if (auto *R = const_cast<ASTRecordLayout *>((I++)->second)) | |||
972 | R->Destroy(*this); | |||
973 | } | |||
974 | ASTRecordLayouts.clear(); | |||
975 | ||||
976 | for (llvm::DenseMap<const Decl*, AttrVec*>::iterator A = DeclAttrs.begin(), | |||
977 | AEnd = DeclAttrs.end(); | |||
978 | A != AEnd; ++A) | |||
979 | A->second->~AttrVec(); | |||
980 | DeclAttrs.clear(); | |||
981 | ||||
982 | for (const auto &Value : ModuleInitializers) | |||
983 | Value.second->~PerModuleInitializers(); | |||
984 | ModuleInitializers.clear(); | |||
985 | } | |||
986 | ||||
987 | ASTContext::~ASTContext() { cleanup(); } | |||
988 | ||||
989 | void ASTContext::setTraversalScope(const std::vector<Decl *> &TopLevelDecls) { | |||
990 | TraversalScope = TopLevelDecls; | |||
991 | getParentMapContext().clear(); | |||
992 | } | |||
993 | ||||
994 | void ASTContext::AddDeallocation(void (*Callback)(void *), void *Data) const { | |||
995 | Deallocations.push_back({Callback, Data}); | |||
996 | } | |||
997 | ||||
998 | void | |||
999 | ASTContext::setExternalSource(IntrusiveRefCntPtr<ExternalASTSource> Source) { | |||
1000 | ExternalSource = std::move(Source); | |||
1001 | } | |||
1002 | ||||
1003 | void ASTContext::PrintStats() const { | |||
1004 | llvm::errs() << "\n*** AST Context Stats:\n"; | |||
1005 | llvm::errs() << " " << Types.size() << " types total.\n"; | |||
1006 | ||||
1007 | unsigned counts[] = { | |||
1008 | #define TYPE(Name, Parent) 0, | |||
1009 | #define ABSTRACT_TYPE(Name, Parent) | |||
1010 | #include "clang/AST/TypeNodes.inc" | |||
1011 | 0 // Extra | |||
1012 | }; | |||
1013 | ||||
1014 | for (unsigned i = 0, e = Types.size(); i != e; ++i) { | |||
1015 | Type *T = Types[i]; | |||
1016 | counts[(unsigned)T->getTypeClass()]++; | |||
1017 | } | |||
1018 | ||||
1019 | unsigned Idx = 0; | |||
1020 | unsigned TotalBytes = 0; | |||
1021 | #define TYPE(Name, Parent) \ | |||
1022 | if (counts[Idx]) \ | |||
1023 | llvm::errs() << " " << counts[Idx] << " " << #Name \ | |||
1024 | << " types, " << sizeof(Name##Type) << " each " \ | |||
1025 | << "(" << counts[Idx] * sizeof(Name##Type) \ | |||
1026 | << " bytes)\n"; \ | |||
1027 | TotalBytes += counts[Idx] * sizeof(Name##Type); \ | |||
1028 | ++Idx; | |||
1029 | #define ABSTRACT_TYPE(Name, Parent) | |||
1030 | #include "clang/AST/TypeNodes.inc" | |||
1031 | ||||
1032 | llvm::errs() << "Total bytes = " << TotalBytes << "\n"; | |||
1033 | ||||
1034 | // Implicit special member functions. | |||
1035 | llvm::errs() << NumImplicitDefaultConstructorsDeclared << "/" | |||
1036 | << NumImplicitDefaultConstructors | |||
1037 | << " implicit default constructors created\n"; | |||
1038 | llvm::errs() << NumImplicitCopyConstructorsDeclared << "/" | |||
1039 | << NumImplicitCopyConstructors | |||
1040 | << " implicit copy constructors created\n"; | |||
1041 | if (getLangOpts().CPlusPlus) | |||
1042 | llvm::errs() << NumImplicitMoveConstructorsDeclared << "/" | |||
1043 | << NumImplicitMoveConstructors | |||
1044 | << " implicit move constructors created\n"; | |||
1045 | llvm::errs() << NumImplicitCopyAssignmentOperatorsDeclared << "/" | |||
1046 | << NumImplicitCopyAssignmentOperators | |||
1047 | << " implicit copy assignment operators created\n"; | |||
1048 | if (getLangOpts().CPlusPlus) | |||
1049 | llvm::errs() << NumImplicitMoveAssignmentOperatorsDeclared << "/" | |||
1050 | << NumImplicitMoveAssignmentOperators | |||
1051 | << " implicit move assignment operators created\n"; | |||
1052 | llvm::errs() << NumImplicitDestructorsDeclared << "/" | |||
1053 | << NumImplicitDestructors | |||
1054 | << " implicit destructors created\n"; | |||
1055 | ||||
1056 | if (ExternalSource) { | |||
1057 | llvm::errs() << "\n"; | |||
1058 | ExternalSource->PrintStats(); | |||
1059 | } | |||
1060 | ||||
1061 | BumpAlloc.PrintStats(); | |||
1062 | } | |||
1063 | ||||
1064 | void ASTContext::mergeDefinitionIntoModule(NamedDecl *ND, Module *M, | |||
1065 | bool NotifyListeners) { | |||
1066 | if (NotifyListeners) | |||
1067 | if (auto *Listener = getASTMutationListener()) | |||
1068 | Listener->RedefinedHiddenDefinition(ND, M); | |||
1069 | ||||
1070 | MergedDefModules[cast<NamedDecl>(ND->getCanonicalDecl())].push_back(M); | |||
1071 | } | |||
1072 | ||||
1073 | void ASTContext::deduplicateMergedDefinitonsFor(NamedDecl *ND) { | |||
1074 | auto It = MergedDefModules.find(cast<NamedDecl>(ND->getCanonicalDecl())); | |||
1075 | if (It == MergedDefModules.end()) | |||
1076 | return; | |||
1077 | ||||
1078 | auto &Merged = It->second; | |||
1079 | llvm::DenseSet<Module*> Found; | |||
1080 | for (Module *&M : Merged) | |||
1081 | if (!Found.insert(M).second) | |||
1082 | M = nullptr; | |||
1083 | llvm::erase_value(Merged, nullptr); | |||
1084 | } | |||
1085 | ||||
1086 | ArrayRef<Module *> | |||
1087 | ASTContext::getModulesWithMergedDefinition(const NamedDecl *Def) { | |||
1088 | auto MergedIt = | |||
1089 | MergedDefModules.find(cast<NamedDecl>(Def->getCanonicalDecl())); | |||
1090 | if (MergedIt == MergedDefModules.end()) | |||
1091 | return std::nullopt; | |||
1092 | return MergedIt->second; | |||
1093 | } | |||
1094 | ||||
1095 | void ASTContext::PerModuleInitializers::resolve(ASTContext &Ctx) { | |||
1096 | if (LazyInitializers.empty()) | |||
1097 | return; | |||
1098 | ||||
1099 | auto *Source = Ctx.getExternalSource(); | |||
1100 | assert(Source && "lazy initializers but no external source")(static_cast <bool> (Source && "lazy initializers but no external source" ) ? void (0) : __assert_fail ("Source && \"lazy initializers but no external source\"" , "clang/lib/AST/ASTContext.cpp", 1100, __extension__ __PRETTY_FUNCTION__ )); | |||
1101 | ||||
1102 | auto LazyInits = std::move(LazyInitializers); | |||
1103 | LazyInitializers.clear(); | |||
1104 | ||||
1105 | for (auto ID : LazyInits) | |||
1106 | Initializers.push_back(Source->GetExternalDecl(ID)); | |||
1107 | ||||
1108 | assert(LazyInitializers.empty() &&(static_cast <bool> (LazyInitializers.empty() && "GetExternalDecl for lazy module initializer added more inits" ) ? void (0) : __assert_fail ("LazyInitializers.empty() && \"GetExternalDecl for lazy module initializer added more inits\"" , "clang/lib/AST/ASTContext.cpp", 1109, __extension__ __PRETTY_FUNCTION__ )) | |||
1109 | "GetExternalDecl for lazy module initializer added more inits")(static_cast <bool> (LazyInitializers.empty() && "GetExternalDecl for lazy module initializer added more inits" ) ? void (0) : __assert_fail ("LazyInitializers.empty() && \"GetExternalDecl for lazy module initializer added more inits\"" , "clang/lib/AST/ASTContext.cpp", 1109, __extension__ __PRETTY_FUNCTION__ )); | |||
1110 | } | |||
1111 | ||||
1112 | void ASTContext::addModuleInitializer(Module *M, Decl *D) { | |||
1113 | // One special case: if we add a module initializer that imports another | |||
1114 | // module, and that module's only initializer is an ImportDecl, simplify. | |||
1115 | if (const auto *ID = dyn_cast<ImportDecl>(D)) { | |||
1116 | auto It = ModuleInitializers.find(ID->getImportedModule()); | |||
1117 | ||||
1118 | // Maybe the ImportDecl does nothing at all. (Common case.) | |||
1119 | if (It == ModuleInitializers.end()) | |||
1120 | return; | |||
1121 | ||||
1122 | // Maybe the ImportDecl only imports another ImportDecl. | |||
1123 | auto &Imported = *It->second; | |||
1124 | if (Imported.Initializers.size() + Imported.LazyInitializers.size() == 1) { | |||
1125 | Imported.resolve(*this); | |||
1126 | auto *OnlyDecl = Imported.Initializers.front(); | |||
1127 | if (isa<ImportDecl>(OnlyDecl)) | |||
1128 | D = OnlyDecl; | |||
1129 | } | |||
1130 | } | |||
1131 | ||||
1132 | auto *&Inits = ModuleInitializers[M]; | |||
1133 | if (!Inits) | |||
1134 | Inits = new (*this) PerModuleInitializers; | |||
1135 | Inits->Initializers.push_back(D); | |||
1136 | } | |||
1137 | ||||
1138 | void ASTContext::addLazyModuleInitializers(Module *M, ArrayRef<uint32_t> IDs) { | |||
1139 | auto *&Inits = ModuleInitializers[M]; | |||
1140 | if (!Inits) | |||
1141 | Inits = new (*this) PerModuleInitializers; | |||
1142 | Inits->LazyInitializers.insert(Inits->LazyInitializers.end(), | |||
1143 | IDs.begin(), IDs.end()); | |||
1144 | } | |||
1145 | ||||
1146 | ArrayRef<Decl *> ASTContext::getModuleInitializers(Module *M) { | |||
1147 | auto It = ModuleInitializers.find(M); | |||
1148 | if (It == ModuleInitializers.end()) | |||
1149 | return std::nullopt; | |||
1150 | ||||
1151 | auto *Inits = It->second; | |||
1152 | Inits->resolve(*this); | |||
1153 | return Inits->Initializers; | |||
1154 | } | |||
1155 | ||||
1156 | void ASTContext::setCurrentNamedModule(Module *M) { | |||
1157 | assert(M->isModulePurview())(static_cast <bool> (M->isModulePurview()) ? void (0 ) : __assert_fail ("M->isModulePurview()", "clang/lib/AST/ASTContext.cpp" , 1157, __extension__ __PRETTY_FUNCTION__)); | |||
1158 | assert(!CurrentCXXNamedModule &&(static_cast <bool> (!CurrentCXXNamedModule && "We should set named module for ASTContext for only once" ) ? void (0) : __assert_fail ("!CurrentCXXNamedModule && \"We should set named module for ASTContext for only once\"" , "clang/lib/AST/ASTContext.cpp", 1159, __extension__ __PRETTY_FUNCTION__ )) | |||
1159 | "We should set named module for ASTContext for only once")(static_cast <bool> (!CurrentCXXNamedModule && "We should set named module for ASTContext for only once" ) ? void (0) : __assert_fail ("!CurrentCXXNamedModule && \"We should set named module for ASTContext for only once\"" , "clang/lib/AST/ASTContext.cpp", 1159, __extension__ __PRETTY_FUNCTION__ )); | |||
1160 | CurrentCXXNamedModule = M; | |||
1161 | } | |||
1162 | ||||
1163 | ExternCContextDecl *ASTContext::getExternCContextDecl() const { | |||
1164 | if (!ExternCContext) | |||
1165 | ExternCContext = ExternCContextDecl::Create(*this, getTranslationUnitDecl()); | |||
1166 | ||||
1167 | return ExternCContext; | |||
1168 | } | |||
1169 | ||||
1170 | BuiltinTemplateDecl * | |||
1171 | ASTContext::buildBuiltinTemplateDecl(BuiltinTemplateKind BTK, | |||
1172 | const IdentifierInfo *II) const { | |||
1173 | auto *BuiltinTemplate = | |||
1174 | BuiltinTemplateDecl::Create(*this, getTranslationUnitDecl(), II, BTK); | |||
1175 | BuiltinTemplate->setImplicit(); | |||
1176 | getTranslationUnitDecl()->addDecl(BuiltinTemplate); | |||
1177 | ||||
1178 | return BuiltinTemplate; | |||
1179 | } | |||
1180 | ||||
1181 | BuiltinTemplateDecl * | |||
1182 | ASTContext::getMakeIntegerSeqDecl() const { | |||
1183 | if (!MakeIntegerSeqDecl) | |||
1184 | MakeIntegerSeqDecl = buildBuiltinTemplateDecl(BTK__make_integer_seq, | |||
1185 | getMakeIntegerSeqName()); | |||
1186 | return MakeIntegerSeqDecl; | |||
1187 | } | |||
1188 | ||||
1189 | BuiltinTemplateDecl * | |||
1190 | ASTContext::getTypePackElementDecl() const { | |||
1191 | if (!TypePackElementDecl) | |||
1192 | TypePackElementDecl = buildBuiltinTemplateDecl(BTK__type_pack_element, | |||
1193 | getTypePackElementName()); | |||
1194 | return TypePackElementDecl; | |||
1195 | } | |||
1196 | ||||
1197 | RecordDecl *ASTContext::buildImplicitRecord(StringRef Name, | |||
1198 | RecordDecl::TagKind TK) const { | |||
1199 | SourceLocation Loc; | |||
1200 | RecordDecl *NewDecl; | |||
1201 | if (getLangOpts().CPlusPlus) | |||
1202 | NewDecl = CXXRecordDecl::Create(*this, TK, getTranslationUnitDecl(), Loc, | |||
1203 | Loc, &Idents.get(Name)); | |||
1204 | else | |||
1205 | NewDecl = RecordDecl::Create(*this, TK, getTranslationUnitDecl(), Loc, Loc, | |||
1206 | &Idents.get(Name)); | |||
1207 | NewDecl->setImplicit(); | |||
1208 | NewDecl->addAttr(TypeVisibilityAttr::CreateImplicit( | |||
1209 | const_cast<ASTContext &>(*this), TypeVisibilityAttr::Default)); | |||
1210 | return NewDecl; | |||
1211 | } | |||
1212 | ||||
1213 | TypedefDecl *ASTContext::buildImplicitTypedef(QualType T, | |||
1214 | StringRef Name) const { | |||
1215 | TypeSourceInfo *TInfo = getTrivialTypeSourceInfo(T); | |||
1216 | TypedefDecl *NewDecl = TypedefDecl::Create( | |||
1217 | const_cast<ASTContext &>(*this), getTranslationUnitDecl(), | |||
1218 | SourceLocation(), SourceLocation(), &Idents.get(Name), TInfo); | |||
1219 | NewDecl->setImplicit(); | |||
1220 | return NewDecl; | |||
1221 | } | |||
1222 | ||||
1223 | TypedefDecl *ASTContext::getInt128Decl() const { | |||
1224 | if (!Int128Decl) | |||
1225 | Int128Decl = buildImplicitTypedef(Int128Ty, "__int128_t"); | |||
1226 | return Int128Decl; | |||
1227 | } | |||
1228 | ||||
1229 | TypedefDecl *ASTContext::getUInt128Decl() const { | |||
1230 | if (!UInt128Decl) | |||
1231 | UInt128Decl = buildImplicitTypedef(UnsignedInt128Ty, "__uint128_t"); | |||
1232 | return UInt128Decl; | |||
1233 | } | |||
1234 | ||||
1235 | void ASTContext::InitBuiltinType(CanQualType &R, BuiltinType::Kind K) { | |||
1236 | auto *Ty = new (*this, TypeAlignment) BuiltinType(K); | |||
1237 | R = CanQualType::CreateUnsafe(QualType(Ty, 0)); | |||
1238 | Types.push_back(Ty); | |||
1239 | } | |||
1240 | ||||
1241 | void ASTContext::InitBuiltinTypes(const TargetInfo &Target, | |||
1242 | const TargetInfo *AuxTarget) { | |||
1243 | assert((!this->Target || this->Target == &Target) &&(static_cast <bool> ((!this->Target || this->Target == &Target) && "Incorrect target reinitialization" ) ? void (0) : __assert_fail ("(!this->Target || this->Target == &Target) && \"Incorrect target reinitialization\"" , "clang/lib/AST/ASTContext.cpp", 1244, __extension__ __PRETTY_FUNCTION__ )) | |||
1244 | "Incorrect target reinitialization")(static_cast <bool> ((!this->Target || this->Target == &Target) && "Incorrect target reinitialization" ) ? void (0) : __assert_fail ("(!this->Target || this->Target == &Target) && \"Incorrect target reinitialization\"" , "clang/lib/AST/ASTContext.cpp", 1244, __extension__ __PRETTY_FUNCTION__ )); | |||
1245 | assert(VoidTy.isNull() && "Context reinitialized?")(static_cast <bool> (VoidTy.isNull() && "Context reinitialized?" ) ? void (0) : __assert_fail ("VoidTy.isNull() && \"Context reinitialized?\"" , "clang/lib/AST/ASTContext.cpp", 1245, __extension__ __PRETTY_FUNCTION__ )); | |||
1246 | ||||
1247 | this->Target = &Target; | |||
1248 | this->AuxTarget = AuxTarget; | |||
1249 | ||||
1250 | ABI.reset(createCXXABI(Target)); | |||
1251 | AddrSpaceMapMangling = isAddrSpaceMapManglingEnabled(Target, LangOpts); | |||
1252 | ||||
1253 | // C99 6.2.5p19. | |||
1254 | InitBuiltinType(VoidTy, BuiltinType::Void); | |||
1255 | ||||
1256 | // C99 6.2.5p2. | |||
1257 | InitBuiltinType(BoolTy, BuiltinType::Bool); | |||
1258 | // C99 6.2.5p3. | |||
1259 | if (LangOpts.CharIsSigned) | |||
1260 | InitBuiltinType(CharTy, BuiltinType::Char_S); | |||
1261 | else | |||
1262 | InitBuiltinType(CharTy, BuiltinType::Char_U); | |||
1263 | // C99 6.2.5p4. | |||
1264 | InitBuiltinType(SignedCharTy, BuiltinType::SChar); | |||
1265 | InitBuiltinType(ShortTy, BuiltinType::Short); | |||
1266 | InitBuiltinType(IntTy, BuiltinType::Int); | |||
1267 | InitBuiltinType(LongTy, BuiltinType::Long); | |||
1268 | InitBuiltinType(LongLongTy, BuiltinType::LongLong); | |||
1269 | ||||
1270 | // C99 6.2.5p6. | |||
1271 | InitBuiltinType(UnsignedCharTy, BuiltinType::UChar); | |||
1272 | InitBuiltinType(UnsignedShortTy, BuiltinType::UShort); | |||
1273 | InitBuiltinType(UnsignedIntTy, BuiltinType::UInt); | |||
1274 | InitBuiltinType(UnsignedLongTy, BuiltinType::ULong); | |||
1275 | InitBuiltinType(UnsignedLongLongTy, BuiltinType::ULongLong); | |||
1276 | ||||
1277 | // C99 6.2.5p10. | |||
1278 | InitBuiltinType(FloatTy, BuiltinType::Float); | |||
1279 | InitBuiltinType(DoubleTy, BuiltinType::Double); | |||
1280 | InitBuiltinType(LongDoubleTy, BuiltinType::LongDouble); | |||
1281 | ||||
1282 | // GNU extension, __float128 for IEEE quadruple precision | |||
1283 | InitBuiltinType(Float128Ty, BuiltinType::Float128); | |||
1284 | ||||
1285 | // __ibm128 for IBM extended precision | |||
1286 | InitBuiltinType(Ibm128Ty, BuiltinType::Ibm128); | |||
1287 | ||||
1288 | // C11 extension ISO/IEC TS 18661-3 | |||
1289 | InitBuiltinType(Float16Ty, BuiltinType::Float16); | |||
1290 | ||||
1291 | // ISO/IEC JTC1 SC22 WG14 N1169 Extension | |||
1292 | InitBuiltinType(ShortAccumTy, BuiltinType::ShortAccum); | |||
1293 | InitBuiltinType(AccumTy, BuiltinType::Accum); | |||
1294 | InitBuiltinType(LongAccumTy, BuiltinType::LongAccum); | |||
1295 | InitBuiltinType(UnsignedShortAccumTy, BuiltinType::UShortAccum); | |||
1296 | InitBuiltinType(UnsignedAccumTy, BuiltinType::UAccum); | |||
1297 | InitBuiltinType(UnsignedLongAccumTy, BuiltinType::ULongAccum); | |||
1298 | InitBuiltinType(ShortFractTy, BuiltinType::ShortFract); | |||
1299 | InitBuiltinType(FractTy, BuiltinType::Fract); | |||
1300 | InitBuiltinType(LongFractTy, BuiltinType::LongFract); | |||
1301 | InitBuiltinType(UnsignedShortFractTy, BuiltinType::UShortFract); | |||
1302 | InitBuiltinType(UnsignedFractTy, BuiltinType::UFract); | |||
1303 | InitBuiltinType(UnsignedLongFractTy, BuiltinType::ULongFract); | |||
1304 | InitBuiltinType(SatShortAccumTy, BuiltinType::SatShortAccum); | |||
1305 | InitBuiltinType(SatAccumTy, BuiltinType::SatAccum); | |||
1306 | InitBuiltinType(SatLongAccumTy, BuiltinType::SatLongAccum); | |||
1307 | InitBuiltinType(SatUnsignedShortAccumTy, BuiltinType::SatUShortAccum); | |||
1308 | InitBuiltinType(SatUnsignedAccumTy, BuiltinType::SatUAccum); | |||
1309 | InitBuiltinType(SatUnsignedLongAccumTy, BuiltinType::SatULongAccum); | |||
1310 | InitBuiltinType(SatShortFractTy, BuiltinType::SatShortFract); | |||
1311 | InitBuiltinType(SatFractTy, BuiltinType::SatFract); | |||
1312 | InitBuiltinType(SatLongFractTy, BuiltinType::SatLongFract); | |||
1313 | InitBuiltinType(SatUnsignedShortFractTy, BuiltinType::SatUShortFract); | |||
1314 | InitBuiltinType(SatUnsignedFractTy, BuiltinType::SatUFract); | |||
1315 | InitBuiltinType(SatUnsignedLongFractTy, BuiltinType::SatULongFract); | |||
1316 | ||||
1317 | // GNU extension, 128-bit integers. | |||
1318 | InitBuiltinType(Int128Ty, BuiltinType::Int128); | |||
1319 | InitBuiltinType(UnsignedInt128Ty, BuiltinType::UInt128); | |||
1320 | ||||
1321 | // C++ 3.9.1p5 | |||
1322 | if (TargetInfo::isTypeSigned(Target.getWCharType())) | |||
1323 | InitBuiltinType(WCharTy, BuiltinType::WChar_S); | |||
1324 | else // -fshort-wchar makes wchar_t be unsigned. | |||
1325 | InitBuiltinType(WCharTy, BuiltinType::WChar_U); | |||
1326 | if (LangOpts.CPlusPlus && LangOpts.WChar) | |||
1327 | WideCharTy = WCharTy; | |||
1328 | else { | |||
1329 | // C99 (or C++ using -fno-wchar). | |||
1330 | WideCharTy = getFromTargetType(Target.getWCharType()); | |||
1331 | } | |||
1332 | ||||
1333 | WIntTy = getFromTargetType(Target.getWIntType()); | |||
1334 | ||||
1335 | // C++20 (proposed) | |||
1336 | InitBuiltinType(Char8Ty, BuiltinType::Char8); | |||
1337 | ||||
1338 | if (LangOpts.CPlusPlus) // C++0x 3.9.1p5, extension for C++ | |||
1339 | InitBuiltinType(Char16Ty, BuiltinType::Char16); | |||
1340 | else // C99 | |||
1341 | Char16Ty = getFromTargetType(Target.getChar16Type()); | |||
1342 | ||||
1343 | if (LangOpts.CPlusPlus) // C++0x 3.9.1p5, extension for C++ | |||
1344 | InitBuiltinType(Char32Ty, BuiltinType::Char32); | |||
1345 | else // C99 | |||
1346 | Char32Ty = getFromTargetType(Target.getChar32Type()); | |||
1347 | ||||
1348 | // Placeholder type for type-dependent expressions whose type is | |||
1349 | // completely unknown. No code should ever check a type against | |||
1350 | // DependentTy and users should never see it; however, it is here to | |||
1351 | // help diagnose failures to properly check for type-dependent | |||
1352 | // expressions. | |||
1353 | InitBuiltinType(DependentTy, BuiltinType::Dependent); | |||
1354 | ||||
1355 | // Placeholder type for functions. | |||
1356 | InitBuiltinType(OverloadTy, BuiltinType::Overload); | |||
1357 | ||||
1358 | // Placeholder type for bound members. | |||
1359 | InitBuiltinType(BoundMemberTy, BuiltinType::BoundMember); | |||
1360 | ||||
1361 | // Placeholder type for pseudo-objects. | |||
1362 | InitBuiltinType(PseudoObjectTy, BuiltinType::PseudoObject); | |||
1363 | ||||
1364 | // "any" type; useful for debugger-like clients. | |||
1365 | InitBuiltinType(UnknownAnyTy, BuiltinType::UnknownAny); | |||
1366 | ||||
1367 | // Placeholder type for unbridged ARC casts. | |||
1368 | InitBuiltinType(ARCUnbridgedCastTy, BuiltinType::ARCUnbridgedCast); | |||
1369 | ||||
1370 | // Placeholder type for builtin functions. | |||
1371 | InitBuiltinType(BuiltinFnTy, BuiltinType::BuiltinFn); | |||
1372 | ||||
1373 | // Placeholder type for OMP array sections. | |||
1374 | if (LangOpts.OpenMP) { | |||
1375 | InitBuiltinType(OMPArraySectionTy, BuiltinType::OMPArraySection); | |||
1376 | InitBuiltinType(OMPArrayShapingTy, BuiltinType::OMPArrayShaping); | |||
1377 | InitBuiltinType(OMPIteratorTy, BuiltinType::OMPIterator); | |||
1378 | } | |||
1379 | if (LangOpts.MatrixTypes) | |||
1380 | InitBuiltinType(IncompleteMatrixIdxTy, BuiltinType::IncompleteMatrixIdx); | |||
1381 | ||||
1382 | // Builtin types for 'id', 'Class', and 'SEL'. | |||
1383 | InitBuiltinType(ObjCBuiltinIdTy, BuiltinType::ObjCId); | |||
1384 | InitBuiltinType(ObjCBuiltinClassTy, BuiltinType::ObjCClass); | |||
1385 | InitBuiltinType(ObjCBuiltinSelTy, BuiltinType::ObjCSel); | |||
1386 | ||||
1387 | if (LangOpts.OpenCL) { | |||
1388 | #define IMAGE_TYPE(ImgType, Id, SingletonId, Access, Suffix) \ | |||
1389 | InitBuiltinType(SingletonId, BuiltinType::Id); | |||
1390 | #include "clang/Basic/OpenCLImageTypes.def" | |||
1391 | ||||
1392 | InitBuiltinType(OCLSamplerTy, BuiltinType::OCLSampler); | |||
1393 | InitBuiltinType(OCLEventTy, BuiltinType::OCLEvent); | |||
1394 | InitBuiltinType(OCLClkEventTy, BuiltinType::OCLClkEvent); | |||
1395 | InitBuiltinType(OCLQueueTy, BuiltinType::OCLQueue); | |||
1396 | InitBuiltinType(OCLReserveIDTy, BuiltinType::OCLReserveID); | |||
1397 | ||||
1398 | #define EXT_OPAQUE_TYPE(ExtType, Id, Ext) \ | |||
1399 | InitBuiltinType(Id##Ty, BuiltinType::Id); | |||
1400 | #include "clang/Basic/OpenCLExtensionTypes.def" | |||
1401 | } | |||
1402 | ||||
1403 | if (Target.hasAArch64SVETypes()) { | |||
1404 | #define SVE_TYPE(Name, Id, SingletonId) \ | |||
1405 | InitBuiltinType(SingletonId, BuiltinType::Id); | |||
1406 | #include "clang/Basic/AArch64SVEACLETypes.def" | |||
1407 | } | |||
1408 | ||||
1409 | if (Target.getTriple().isPPC64()) { | |||
1410 | #define PPC_VECTOR_MMA_TYPE(Name, Id, Size) \ | |||
1411 | InitBuiltinType(Id##Ty, BuiltinType::Id); | |||
1412 | #include "clang/Basic/PPCTypes.def" | |||
1413 | #define PPC_VECTOR_VSX_TYPE(Name, Id, Size) \ | |||
1414 | InitBuiltinType(Id##Ty, BuiltinType::Id); | |||
1415 | #include "clang/Basic/PPCTypes.def" | |||
1416 | } | |||
1417 | ||||
1418 | if (Target.hasRISCVVTypes()) { | |||
1419 | #define RVV_TYPE(Name, Id, SingletonId) \ | |||
1420 | InitBuiltinType(SingletonId, BuiltinType::Id); | |||
1421 | #include "clang/Basic/RISCVVTypes.def" | |||
1422 | } | |||
1423 | ||||
1424 | if (Target.getTriple().isWasm() && Target.hasFeature("reference-types")) { | |||
1425 | #define WASM_TYPE(Name, Id, SingletonId) \ | |||
1426 | InitBuiltinType(SingletonId, BuiltinType::Id); | |||
1427 | #include "clang/Basic/WebAssemblyReferenceTypes.def" | |||
1428 | } | |||
1429 | ||||
1430 | // Builtin type for __objc_yes and __objc_no | |||
1431 | ObjCBuiltinBoolTy = (Target.useSignedCharForObjCBool() ? | |||
1432 | SignedCharTy : BoolTy); | |||
1433 | ||||
1434 | ObjCConstantStringType = QualType(); | |||
1435 | ||||
1436 | ObjCSuperType = QualType(); | |||
1437 | ||||
1438 | // void * type | |||
1439 | if (LangOpts.OpenCLGenericAddressSpace) { | |||
1440 | auto Q = VoidTy.getQualifiers(); | |||
1441 | Q.setAddressSpace(LangAS::opencl_generic); | |||
1442 | VoidPtrTy = getPointerType(getCanonicalType( | |||
1443 | getQualifiedType(VoidTy.getUnqualifiedType(), Q))); | |||
1444 | } else { | |||
1445 | VoidPtrTy = getPointerType(VoidTy); | |||
1446 | } | |||
1447 | ||||
1448 | // nullptr type (C++0x 2.14.7) | |||
1449 | InitBuiltinType(NullPtrTy, BuiltinType::NullPtr); | |||
1450 | ||||
1451 | // half type (OpenCL 6.1.1.1) / ARM NEON __fp16 | |||
1452 | InitBuiltinType(HalfTy, BuiltinType::Half); | |||
1453 | ||||
1454 | InitBuiltinType(BFloat16Ty, BuiltinType::BFloat16); | |||
1455 | ||||
1456 | // Builtin type used to help define __builtin_va_list. | |||
1457 | VaListTagDecl = nullptr; | |||
1458 | ||||
1459 | // MSVC predeclares struct _GUID, and we need it to create MSGuidDecls. | |||
1460 | if (LangOpts.MicrosoftExt || LangOpts.Borland) { | |||
1461 | MSGuidTagDecl = buildImplicitRecord("_GUID"); | |||
1462 | getTranslationUnitDecl()->addDecl(MSGuidTagDecl); | |||
1463 | } | |||
1464 | } | |||
1465 | ||||
1466 | DiagnosticsEngine &ASTContext::getDiagnostics() const { | |||
1467 | return SourceMgr.getDiagnostics(); | |||
1468 | } | |||
1469 | ||||
1470 | AttrVec& ASTContext::getDeclAttrs(const Decl *D) { | |||
1471 | AttrVec *&Result = DeclAttrs[D]; | |||
1472 | if (!Result) { | |||
1473 | void *Mem = Allocate(sizeof(AttrVec)); | |||
1474 | Result = new (Mem) AttrVec; | |||
1475 | } | |||
1476 | ||||
1477 | return *Result; | |||
1478 | } | |||
1479 | ||||
1480 | /// Erase the attributes corresponding to the given declaration. | |||
1481 | void ASTContext::eraseDeclAttrs(const Decl *D) { | |||
1482 | llvm::DenseMap<const Decl*, AttrVec*>::iterator Pos = DeclAttrs.find(D); | |||
1483 | if (Pos != DeclAttrs.end()) { | |||
1484 | Pos->second->~AttrVec(); | |||
1485 | DeclAttrs.erase(Pos); | |||
1486 | } | |||
1487 | } | |||
1488 | ||||
1489 | // FIXME: Remove ? | |||
1490 | MemberSpecializationInfo * | |||
1491 | ASTContext::getInstantiatedFromStaticDataMember(const VarDecl *Var) { | |||
1492 | assert(Var->isStaticDataMember() && "Not a static data member")(static_cast <bool> (Var->isStaticDataMember() && "Not a static data member") ? void (0) : __assert_fail ("Var->isStaticDataMember() && \"Not a static data member\"" , "clang/lib/AST/ASTContext.cpp", 1492, __extension__ __PRETTY_FUNCTION__ )); | |||
1493 | return getTemplateOrSpecializationInfo(Var) | |||
1494 | .dyn_cast<MemberSpecializationInfo *>(); | |||
1495 | } | |||
1496 | ||||
1497 | ASTContext::TemplateOrSpecializationInfo | |||
1498 | ASTContext::getTemplateOrSpecializationInfo(const VarDecl *Var) { | |||
1499 | llvm::DenseMap<const VarDecl *, TemplateOrSpecializationInfo>::iterator Pos = | |||
1500 | TemplateOrInstantiation.find(Var); | |||
1501 | if (Pos == TemplateOrInstantiation.end()) | |||
1502 | return {}; | |||
1503 | ||||
1504 | return Pos->second; | |||
1505 | } | |||
1506 | ||||
1507 | void | |||
1508 | ASTContext::setInstantiatedFromStaticDataMember(VarDecl *Inst, VarDecl *Tmpl, | |||
1509 | TemplateSpecializationKind TSK, | |||
1510 | SourceLocation PointOfInstantiation) { | |||
1511 | assert(Inst->isStaticDataMember() && "Not a static data member")(static_cast <bool> (Inst->isStaticDataMember() && "Not a static data member") ? void (0) : __assert_fail ("Inst->isStaticDataMember() && \"Not a static data member\"" , "clang/lib/AST/ASTContext.cpp", 1511, __extension__ __PRETTY_FUNCTION__ )); | |||
1512 | assert(Tmpl->isStaticDataMember() && "Not a static data member")(static_cast <bool> (Tmpl->isStaticDataMember() && "Not a static data member") ? void (0) : __assert_fail ("Tmpl->isStaticDataMember() && \"Not a static data member\"" , "clang/lib/AST/ASTContext.cpp", 1512, __extension__ __PRETTY_FUNCTION__ )); | |||
1513 | setTemplateOrSpecializationInfo(Inst, new (*this) MemberSpecializationInfo( | |||
1514 | Tmpl, TSK, PointOfInstantiation)); | |||
1515 | } | |||
1516 | ||||
1517 | void | |||
1518 | ASTContext::setTemplateOrSpecializationInfo(VarDecl *Inst, | |||
1519 | TemplateOrSpecializationInfo TSI) { | |||
1520 | assert(!TemplateOrInstantiation[Inst] &&(static_cast <bool> (!TemplateOrInstantiation[Inst] && "Already noted what the variable was instantiated from") ? void (0) : __assert_fail ("!TemplateOrInstantiation[Inst] && \"Already noted what the variable was instantiated from\"" , "clang/lib/AST/ASTContext.cpp", 1521, __extension__ __PRETTY_FUNCTION__ )) | |||
1521 | "Already noted what the variable was instantiated from")(static_cast <bool> (!TemplateOrInstantiation[Inst] && "Already noted what the variable was instantiated from") ? void (0) : __assert_fail ("!TemplateOrInstantiation[Inst] && \"Already noted what the variable was instantiated from\"" , "clang/lib/AST/ASTContext.cpp", 1521, __extension__ __PRETTY_FUNCTION__ )); | |||
1522 | TemplateOrInstantiation[Inst] = TSI; | |||
1523 | } | |||
1524 | ||||
1525 | NamedDecl * | |||
1526 | ASTContext::getInstantiatedFromUsingDecl(NamedDecl *UUD) { | |||
1527 | auto Pos = InstantiatedFromUsingDecl.find(UUD); | |||
1528 | if (Pos == InstantiatedFromUsingDecl.end()) | |||
1529 | return nullptr; | |||
1530 | ||||
1531 | return Pos->second; | |||
1532 | } | |||
1533 | ||||
1534 | void | |||
1535 | ASTContext::setInstantiatedFromUsingDecl(NamedDecl *Inst, NamedDecl *Pattern) { | |||
1536 | assert((isa<UsingDecl>(Pattern) ||(static_cast <bool> ((isa<UsingDecl>(Pattern) || isa <UnresolvedUsingValueDecl>(Pattern) || isa<UnresolvedUsingTypenameDecl >(Pattern)) && "pattern decl is not a using decl") ? void (0) : __assert_fail ("(isa<UsingDecl>(Pattern) || isa<UnresolvedUsingValueDecl>(Pattern) || isa<UnresolvedUsingTypenameDecl>(Pattern)) && \"pattern decl is not a using decl\"" , "clang/lib/AST/ASTContext.cpp", 1539, __extension__ __PRETTY_FUNCTION__ )) | |||
1537 | isa<UnresolvedUsingValueDecl>(Pattern) ||(static_cast <bool> ((isa<UsingDecl>(Pattern) || isa <UnresolvedUsingValueDecl>(Pattern) || isa<UnresolvedUsingTypenameDecl >(Pattern)) && "pattern decl is not a using decl") ? void (0) : __assert_fail ("(isa<UsingDecl>(Pattern) || isa<UnresolvedUsingValueDecl>(Pattern) || isa<UnresolvedUsingTypenameDecl>(Pattern)) && \"pattern decl is not a using decl\"" , "clang/lib/AST/ASTContext.cpp", 1539, __extension__ __PRETTY_FUNCTION__ )) | |||
1538 | isa<UnresolvedUsingTypenameDecl>(Pattern)) &&(static_cast <bool> ((isa<UsingDecl>(Pattern) || isa <UnresolvedUsingValueDecl>(Pattern) || isa<UnresolvedUsingTypenameDecl >(Pattern)) && "pattern decl is not a using decl") ? void (0) : __assert_fail ("(isa<UsingDecl>(Pattern) || isa<UnresolvedUsingValueDecl>(Pattern) || isa<UnresolvedUsingTypenameDecl>(Pattern)) && \"pattern decl is not a using decl\"" , "clang/lib/AST/ASTContext.cpp", 1539, __extension__ __PRETTY_FUNCTION__ )) | |||
1539 | "pattern decl is not a using decl")(static_cast <bool> ((isa<UsingDecl>(Pattern) || isa <UnresolvedUsingValueDecl>(Pattern) || isa<UnresolvedUsingTypenameDecl >(Pattern)) && "pattern decl is not a using decl") ? void (0) : __assert_fail ("(isa<UsingDecl>(Pattern) || isa<UnresolvedUsingValueDecl>(Pattern) || isa<UnresolvedUsingTypenameDecl>(Pattern)) && \"pattern decl is not a using decl\"" , "clang/lib/AST/ASTContext.cpp", 1539, __extension__ __PRETTY_FUNCTION__ )); | |||
1540 | assert((isa<UsingDecl>(Inst) ||(static_cast <bool> ((isa<UsingDecl>(Inst) || isa <UnresolvedUsingValueDecl>(Inst) || isa<UnresolvedUsingTypenameDecl >(Inst)) && "instantiation did not produce a using decl" ) ? void (0) : __assert_fail ("(isa<UsingDecl>(Inst) || isa<UnresolvedUsingValueDecl>(Inst) || isa<UnresolvedUsingTypenameDecl>(Inst)) && \"instantiation did not produce a using decl\"" , "clang/lib/AST/ASTContext.cpp", 1543, __extension__ __PRETTY_FUNCTION__ )) | |||
1541 | isa<UnresolvedUsingValueDecl>(Inst) ||(static_cast <bool> ((isa<UsingDecl>(Inst) || isa <UnresolvedUsingValueDecl>(Inst) || isa<UnresolvedUsingTypenameDecl >(Inst)) && "instantiation did not produce a using decl" ) ? void (0) : __assert_fail ("(isa<UsingDecl>(Inst) || isa<UnresolvedUsingValueDecl>(Inst) || isa<UnresolvedUsingTypenameDecl>(Inst)) && \"instantiation did not produce a using decl\"" , "clang/lib/AST/ASTContext.cpp", 1543, __extension__ __PRETTY_FUNCTION__ )) | |||
1542 | isa<UnresolvedUsingTypenameDecl>(Inst)) &&(static_cast <bool> ((isa<UsingDecl>(Inst) || isa <UnresolvedUsingValueDecl>(Inst) || isa<UnresolvedUsingTypenameDecl >(Inst)) && "instantiation did not produce a using decl" ) ? void (0) : __assert_fail ("(isa<UsingDecl>(Inst) || isa<UnresolvedUsingValueDecl>(Inst) || isa<UnresolvedUsingTypenameDecl>(Inst)) && \"instantiation did not produce a using decl\"" , "clang/lib/AST/ASTContext.cpp", 1543, __extension__ __PRETTY_FUNCTION__ )) | |||
1543 | "instantiation did not produce a using decl")(static_cast <bool> ((isa<UsingDecl>(Inst) || isa <UnresolvedUsingValueDecl>(Inst) || isa<UnresolvedUsingTypenameDecl >(Inst)) && "instantiation did not produce a using decl" ) ? void (0) : __assert_fail ("(isa<UsingDecl>(Inst) || isa<UnresolvedUsingValueDecl>(Inst) || isa<UnresolvedUsingTypenameDecl>(Inst)) && \"instantiation did not produce a using decl\"" , "clang/lib/AST/ASTContext.cpp", 1543, __extension__ __PRETTY_FUNCTION__ )); | |||
1544 | assert(!InstantiatedFromUsingDecl[Inst] && "pattern already exists")(static_cast <bool> (!InstantiatedFromUsingDecl[Inst] && "pattern already exists") ? void (0) : __assert_fail ("!InstantiatedFromUsingDecl[Inst] && \"pattern already exists\"" , "clang/lib/AST/ASTContext.cpp", 1544, __extension__ __PRETTY_FUNCTION__ )); | |||
1545 | InstantiatedFromUsingDecl[Inst] = Pattern; | |||
1546 | } | |||
1547 | ||||
1548 | UsingEnumDecl * | |||
1549 | ASTContext::getInstantiatedFromUsingEnumDecl(UsingEnumDecl *UUD) { | |||
1550 | auto Pos = InstantiatedFromUsingEnumDecl.find(UUD); | |||
1551 | if (Pos == InstantiatedFromUsingEnumDecl.end()) | |||
1552 | return nullptr; | |||
1553 | ||||
1554 | return Pos->second; | |||
1555 | } | |||
1556 | ||||
1557 | void ASTContext::setInstantiatedFromUsingEnumDecl(UsingEnumDecl *Inst, | |||
1558 | UsingEnumDecl *Pattern) { | |||
1559 | assert(!InstantiatedFromUsingEnumDecl[Inst] && "pattern already exists")(static_cast <bool> (!InstantiatedFromUsingEnumDecl[Inst ] && "pattern already exists") ? void (0) : __assert_fail ("!InstantiatedFromUsingEnumDecl[Inst] && \"pattern already exists\"" , "clang/lib/AST/ASTContext.cpp", 1559, __extension__ __PRETTY_FUNCTION__ )); | |||
1560 | InstantiatedFromUsingEnumDecl[Inst] = Pattern; | |||
1561 | } | |||
1562 | ||||
1563 | UsingShadowDecl * | |||
1564 | ASTContext::getInstantiatedFromUsingShadowDecl(UsingShadowDecl *Inst) { | |||
1565 | llvm::DenseMap<UsingShadowDecl*, UsingShadowDecl*>::const_iterator Pos | |||
1566 | = InstantiatedFromUsingShadowDecl.find(Inst); | |||
1567 | if (Pos == InstantiatedFromUsingShadowDecl.end()) | |||
1568 | return nullptr; | |||
1569 | ||||
1570 | return Pos->second; | |||
1571 | } | |||
1572 | ||||
1573 | void | |||
1574 | ASTContext::setInstantiatedFromUsingShadowDecl(UsingShadowDecl *Inst, | |||
1575 | UsingShadowDecl *Pattern) { | |||
1576 | assert(!InstantiatedFromUsingShadowDecl[Inst] && "pattern already exists")(static_cast <bool> (!InstantiatedFromUsingShadowDecl[Inst ] && "pattern already exists") ? void (0) : __assert_fail ("!InstantiatedFromUsingShadowDecl[Inst] && \"pattern already exists\"" , "clang/lib/AST/ASTContext.cpp", 1576, __extension__ __PRETTY_FUNCTION__ )); | |||
1577 | InstantiatedFromUsingShadowDecl[Inst] = Pattern; | |||
1578 | } | |||
1579 | ||||
1580 | FieldDecl *ASTContext::getInstantiatedFromUnnamedFieldDecl(FieldDecl *Field) { | |||
1581 | llvm::DenseMap<FieldDecl *, FieldDecl *>::iterator Pos | |||
1582 | = InstantiatedFromUnnamedFieldDecl.find(Field); | |||
1583 | if (Pos == InstantiatedFromUnnamedFieldDecl.end()) | |||
1584 | return nullptr; | |||
1585 | ||||
1586 | return Pos->second; | |||
1587 | } | |||
1588 | ||||
1589 | void ASTContext::setInstantiatedFromUnnamedFieldDecl(FieldDecl *Inst, | |||
1590 | FieldDecl *Tmpl) { | |||
1591 | assert(!Inst->getDeclName() && "Instantiated field decl is not unnamed")(static_cast <bool> (!Inst->getDeclName() && "Instantiated field decl is not unnamed") ? void (0) : __assert_fail ("!Inst->getDeclName() && \"Instantiated field decl is not unnamed\"" , "clang/lib/AST/ASTContext.cpp", 1591, __extension__ __PRETTY_FUNCTION__ )); | |||
1592 | assert(!Tmpl->getDeclName() && "Template field decl is not unnamed")(static_cast <bool> (!Tmpl->getDeclName() && "Template field decl is not unnamed") ? void (0) : __assert_fail ("!Tmpl->getDeclName() && \"Template field decl is not unnamed\"" , "clang/lib/AST/ASTContext.cpp", 1592, __extension__ __PRETTY_FUNCTION__ )); | |||
1593 | assert(!InstantiatedFromUnnamedFieldDecl[Inst] &&(static_cast <bool> (!InstantiatedFromUnnamedFieldDecl[ Inst] && "Already noted what unnamed field was instantiated from" ) ? void (0) : __assert_fail ("!InstantiatedFromUnnamedFieldDecl[Inst] && \"Already noted what unnamed field was instantiated from\"" , "clang/lib/AST/ASTContext.cpp", 1594, __extension__ __PRETTY_FUNCTION__ )) | |||
1594 | "Already noted what unnamed field was instantiated from")(static_cast <bool> (!InstantiatedFromUnnamedFieldDecl[ Inst] && "Already noted what unnamed field was instantiated from" ) ? void (0) : __assert_fail ("!InstantiatedFromUnnamedFieldDecl[Inst] && \"Already noted what unnamed field was instantiated from\"" , "clang/lib/AST/ASTContext.cpp", 1594, __extension__ __PRETTY_FUNCTION__ )); | |||
1595 | ||||
1596 | InstantiatedFromUnnamedFieldDecl[Inst] = Tmpl; | |||
1597 | } | |||
1598 | ||||
1599 | ASTContext::overridden_cxx_method_iterator | |||
1600 | ASTContext::overridden_methods_begin(const CXXMethodDecl *Method) const { | |||
1601 | return overridden_methods(Method).begin(); | |||
1602 | } | |||
1603 | ||||
1604 | ASTContext::overridden_cxx_method_iterator | |||
1605 | ASTContext::overridden_methods_end(const CXXMethodDecl *Method) const { | |||
1606 | return overridden_methods(Method).end(); | |||
1607 | } | |||
1608 | ||||
1609 | unsigned | |||
1610 | ASTContext::overridden_methods_size(const CXXMethodDecl *Method) const { | |||
1611 | auto Range = overridden_methods(Method); | |||
1612 | return Range.end() - Range.begin(); | |||
1613 | } | |||
1614 | ||||
1615 | ASTContext::overridden_method_range | |||
1616 | ASTContext::overridden_methods(const CXXMethodDecl *Method) const { | |||
1617 | llvm::DenseMap<const CXXMethodDecl *, CXXMethodVector>::const_iterator Pos = | |||
1618 | OverriddenMethods.find(Method->getCanonicalDecl()); | |||
1619 | if (Pos == OverriddenMethods.end()) | |||
1620 | return overridden_method_range(nullptr, nullptr); | |||
1621 | return overridden_method_range(Pos->second.begin(), Pos->second.end()); | |||
1622 | } | |||
1623 | ||||
1624 | void ASTContext::addOverriddenMethod(const CXXMethodDecl *Method, | |||
1625 | const CXXMethodDecl *Overridden) { | |||
1626 | assert(Method->isCanonicalDecl() && Overridden->isCanonicalDecl())(static_cast <bool> (Method->isCanonicalDecl() && Overridden->isCanonicalDecl()) ? void (0) : __assert_fail ("Method->isCanonicalDecl() && Overridden->isCanonicalDecl()" , "clang/lib/AST/ASTContext.cpp", 1626, __extension__ __PRETTY_FUNCTION__ )); | |||
1627 | OverriddenMethods[Method].push_back(Overridden); | |||
1628 | } | |||
1629 | ||||
1630 | void ASTContext::getOverriddenMethods( | |||
1631 | const NamedDecl *D, | |||
1632 | SmallVectorImpl<const NamedDecl *> &Overridden) const { | |||
1633 | assert(D)(static_cast <bool> (D) ? void (0) : __assert_fail ("D" , "clang/lib/AST/ASTContext.cpp", 1633, __extension__ __PRETTY_FUNCTION__ )); | |||
1634 | ||||
1635 | if (const auto *CXXMethod = dyn_cast<CXXMethodDecl>(D)) { | |||
1636 | Overridden.append(overridden_methods_begin(CXXMethod), | |||
1637 | overridden_methods_end(CXXMethod)); | |||
1638 | return; | |||
1639 | } | |||
1640 | ||||
1641 | const auto *Method = dyn_cast<ObjCMethodDecl>(D); | |||
1642 | if (!Method) | |||
1643 | return; | |||
1644 | ||||
1645 | SmallVector<const ObjCMethodDecl *, 8> OverDecls; | |||
1646 | Method->getOverriddenMethods(OverDecls); | |||
1647 | Overridden.append(OverDecls.begin(), OverDecls.end()); | |||
1648 | } | |||
1649 | ||||
1650 | void ASTContext::addedLocalImportDecl(ImportDecl *Import) { | |||
1651 | assert(!Import->getNextLocalImport() &&(static_cast <bool> (!Import->getNextLocalImport() && "Import declaration already in the chain") ? void (0) : __assert_fail ("!Import->getNextLocalImport() && \"Import declaration already in the chain\"" , "clang/lib/AST/ASTContext.cpp", 1652, __extension__ __PRETTY_FUNCTION__ )) | |||
1652 | "Import declaration already in the chain")(static_cast <bool> (!Import->getNextLocalImport() && "Import declaration already in the chain") ? void (0) : __assert_fail ("!Import->getNextLocalImport() && \"Import declaration already in the chain\"" , "clang/lib/AST/ASTContext.cpp", 1652, __extension__ __PRETTY_FUNCTION__ )); | |||
1653 | assert(!Import->isFromASTFile() && "Non-local import declaration")(static_cast <bool> (!Import->isFromASTFile() && "Non-local import declaration") ? void (0) : __assert_fail ( "!Import->isFromASTFile() && \"Non-local import declaration\"" , "clang/lib/AST/ASTContext.cpp", 1653, __extension__ __PRETTY_FUNCTION__ )); | |||
1654 | if (!FirstLocalImport) { | |||
1655 | FirstLocalImport = Import; | |||
1656 | LastLocalImport = Import; | |||
1657 | return; | |||
1658 | } | |||
1659 | ||||
1660 | LastLocalImport->setNextLocalImport(Import); | |||
1661 | LastLocalImport = Import; | |||
1662 | } | |||
1663 | ||||
1664 | //===----------------------------------------------------------------------===// | |||
1665 | // Type Sizing and Analysis | |||
1666 | //===----------------------------------------------------------------------===// | |||
1667 | ||||
1668 | /// getFloatTypeSemantics - Return the APFloat 'semantics' for the specified | |||
1669 | /// scalar floating point type. | |||
1670 | const llvm::fltSemantics &ASTContext::getFloatTypeSemantics(QualType T) const { | |||
1671 | switch (T->castAs<BuiltinType>()->getKind()) { | |||
1672 | default: | |||
1673 | llvm_unreachable("Not a floating point type!")::llvm::llvm_unreachable_internal("Not a floating point type!" , "clang/lib/AST/ASTContext.cpp", 1673); | |||
1674 | case BuiltinType::BFloat16: | |||
1675 | return Target->getBFloat16Format(); | |||
1676 | case BuiltinType::Float16: | |||
1677 | return Target->getHalfFormat(); | |||
1678 | case BuiltinType::Half: | |||
1679 | // For HLSL, when the native half type is disabled, half will be treat as | |||
1680 | // float. | |||
1681 | if (getLangOpts().HLSL) | |||
1682 | if (getLangOpts().NativeHalfType) | |||
1683 | return Target->getHalfFormat(); | |||
1684 | else | |||
1685 | return Target->getFloatFormat(); | |||
1686 | else | |||
1687 | return Target->getHalfFormat(); | |||
1688 | case BuiltinType::Float: return Target->getFloatFormat(); | |||
1689 | case BuiltinType::Double: return Target->getDoubleFormat(); | |||
1690 | case BuiltinType::Ibm128: | |||
1691 | return Target->getIbm128Format(); | |||
1692 | case BuiltinType::LongDouble: | |||
1693 | if (getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice) | |||
1694 | return AuxTarget->getLongDoubleFormat(); | |||
1695 | return Target->getLongDoubleFormat(); | |||
1696 | case BuiltinType::Float128: | |||
1697 | if (getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice) | |||
1698 | return AuxTarget->getFloat128Format(); | |||
1699 | return Target->getFloat128Format(); | |||
1700 | } | |||
1701 | } | |||
1702 | ||||
1703 | CharUnits ASTContext::getDeclAlign(const Decl *D, bool ForAlignof) const { | |||
1704 | unsigned Align = Target->getCharWidth(); | |||
1705 | ||||
1706 | bool UseAlignAttrOnly = false; | |||
1707 | if (unsigned AlignFromAttr = D->getMaxAlignment()) { | |||
1708 | Align = AlignFromAttr; | |||
1709 | ||||
1710 | // __attribute__((aligned)) can increase or decrease alignment | |||
1711 | // *except* on a struct or struct member, where it only increases | |||
1712 | // alignment unless 'packed' is also specified. | |||
1713 | // | |||
1714 | // It is an error for alignas to decrease alignment, so we can | |||
1715 | // ignore that possibility; Sema should diagnose it. | |||
1716 | if (isa<FieldDecl>(D)) { | |||
1717 | UseAlignAttrOnly = D->hasAttr<PackedAttr>() || | |||
1718 | cast<FieldDecl>(D)->getParent()->hasAttr<PackedAttr>(); | |||
1719 | } else { | |||
1720 | UseAlignAttrOnly = true; | |||
1721 | } | |||
1722 | } | |||
1723 | else if (isa<FieldDecl>(D)) | |||
1724 | UseAlignAttrOnly = | |||
1725 | D->hasAttr<PackedAttr>() || | |||
1726 | cast<FieldDecl>(D)->getParent()->hasAttr<PackedAttr>(); | |||
1727 | ||||
1728 | // If we're using the align attribute only, just ignore everything | |||
1729 | // else about the declaration and its type. | |||
1730 | if (UseAlignAttrOnly) { | |||
1731 | // do nothing | |||
1732 | } else if (const auto *VD = dyn_cast<ValueDecl>(D)) { | |||
1733 | QualType T = VD->getType(); | |||
1734 | if (const auto *RT = T->getAs<ReferenceType>()) { | |||
1735 | if (ForAlignof) | |||
1736 | T = RT->getPointeeType(); | |||
1737 | else | |||
1738 | T = getPointerType(RT->getPointeeType()); | |||
1739 | } | |||
1740 | QualType BaseT = getBaseElementType(T); | |||
1741 | if (T->isFunctionType()) | |||
1742 | Align = getTypeInfoImpl(T.getTypePtr()).Align; | |||
1743 | else if (!BaseT->isIncompleteType()) { | |||
1744 | // Adjust alignments of declarations with array type by the | |||
1745 | // large-array alignment on the target. | |||
1746 | if (const ArrayType *arrayType = getAsArrayType(T)) { | |||
1747 | unsigned MinWidth = Target->getLargeArrayMinWidth(); | |||
1748 | if (!ForAlignof && MinWidth) { | |||
1749 | if (isa<VariableArrayType>(arrayType)) | |||
1750 | Align = std::max(Align, Target->getLargeArrayAlign()); | |||
1751 | else if (isa<ConstantArrayType>(arrayType) && | |||
1752 | MinWidth <= getTypeSize(cast<ConstantArrayType>(arrayType))) | |||
1753 | Align = std::max(Align, Target->getLargeArrayAlign()); | |||
1754 | } | |||
1755 | } | |||
1756 | Align = std::max(Align, getPreferredTypeAlign(T.getTypePtr())); | |||
1757 | if (BaseT.getQualifiers().hasUnaligned()) | |||
1758 | Align = Target->getCharWidth(); | |||
1759 | if (const auto *VD = dyn_cast<VarDecl>(D)) { | |||
1760 | if (VD->hasGlobalStorage() && !ForAlignof) { | |||
1761 | uint64_t TypeSize = getTypeSize(T.getTypePtr()); | |||
1762 | Align = std::max(Align, getTargetInfo().getMinGlobalAlign(TypeSize)); | |||
1763 | } | |||
1764 | } | |||
1765 | } | |||
1766 | ||||
1767 | // Fields can be subject to extra alignment constraints, like if | |||
1768 | // the field is packed, the struct is packed, or the struct has a | |||
1769 | // a max-field-alignment constraint (#pragma pack). So calculate | |||
1770 | // the actual alignment of the field within the struct, and then | |||
1771 | // (as we're expected to) constrain that by the alignment of the type. | |||
1772 | if (const auto *Field = dyn_cast<FieldDecl>(VD)) { | |||
1773 | const RecordDecl *Parent = Field->getParent(); | |||
1774 | // We can only produce a sensible answer if the record is valid. | |||
1775 | if (!Parent->isInvalidDecl()) { | |||
1776 | const ASTRecordLayout &Layout = getASTRecordLayout(Parent); | |||
1777 | ||||
1778 | // Start with the record's overall alignment. | |||
1779 | unsigned FieldAlign = toBits(Layout.getAlignment()); | |||
1780 | ||||
1781 | // Use the GCD of that and the offset within the record. | |||
1782 | uint64_t Offset = Layout.getFieldOffset(Field->getFieldIndex()); | |||
1783 | if (Offset > 0) { | |||
1784 | // Alignment is always a power of 2, so the GCD will be a power of 2, | |||
1785 | // which means we get to do this crazy thing instead of Euclid's. | |||
1786 | uint64_t LowBitOfOffset = Offset & (~Offset + 1); | |||
1787 | if (LowBitOfOffset < FieldAlign) | |||
1788 | FieldAlign = static_cast<unsigned>(LowBitOfOffset); | |||
1789 | } | |||
1790 | ||||
1791 | Align = std::min(Align, FieldAlign); | |||
1792 | } | |||
1793 | } | |||
1794 | } | |||
1795 | ||||
1796 | // Some targets have hard limitation on the maximum requestable alignment in | |||
1797 | // aligned attribute for static variables. | |||
1798 | const unsigned MaxAlignedAttr = getTargetInfo().getMaxAlignedAttribute(); | |||
1799 | const auto *VD = dyn_cast<VarDecl>(D); | |||
1800 | if (MaxAlignedAttr && VD && VD->getStorageClass() == SC_Static) | |||
1801 | Align = std::min(Align, MaxAlignedAttr); | |||
1802 | ||||
1803 | return toCharUnitsFromBits(Align); | |||
1804 | } | |||
1805 | ||||
1806 | CharUnits ASTContext::getExnObjectAlignment() const { | |||
1807 | return toCharUnitsFromBits(Target->getExnObjectAlignment()); | |||
1808 | } | |||
1809 | ||||
1810 | // getTypeInfoDataSizeInChars - Return the size of a type, in | |||
1811 | // chars. If the type is a record, its data size is returned. This is | |||
1812 | // the size of the memcpy that's performed when assigning this type | |||
1813 | // using a trivial copy/move assignment operator. | |||
1814 | TypeInfoChars ASTContext::getTypeInfoDataSizeInChars(QualType T) const { | |||
1815 | TypeInfoChars Info = getTypeInfoInChars(T); | |||
1816 | ||||
1817 | // In C++, objects can sometimes be allocated into the tail padding | |||
1818 | // of a base-class subobject. We decide whether that's possible | |||
1819 | // during class layout, so here we can just trust the layout results. | |||
1820 | if (getLangOpts().CPlusPlus) { | |||
1821 | if (const auto *RT = T->getAs<RecordType>()) { | |||
1822 | const ASTRecordLayout &layout = getASTRecordLayout(RT->getDecl()); | |||
1823 | Info.Width = layout.getDataSize(); | |||
1824 | } | |||
1825 | } | |||
1826 | ||||
1827 | return Info; | |||
1828 | } | |||
1829 | ||||
1830 | /// getConstantArrayInfoInChars - Performing the computation in CharUnits | |||
1831 | /// instead of in bits prevents overflowing the uint64_t for some large arrays. | |||
1832 | TypeInfoChars | |||
1833 | static getConstantArrayInfoInChars(const ASTContext &Context, | |||
1834 | const ConstantArrayType *CAT) { | |||
1835 | TypeInfoChars EltInfo = Context.getTypeInfoInChars(CAT->getElementType()); | |||
1836 | uint64_t Size = CAT->getSize().getZExtValue(); | |||
1837 | assert((Size == 0 || static_cast<uint64_t>(EltInfo.Width.getQuantity()) <=(static_cast <bool> ((Size == 0 || static_cast<uint64_t >(EltInfo.Width.getQuantity()) <= (uint64_t)(-1)/Size) && "Overflow in array type char size evaluation") ? void (0) : __assert_fail ("(Size == 0 || static_cast<uint64_t>(EltInfo.Width.getQuantity()) <= (uint64_t)(-1)/Size) && \"Overflow in array type char size evaluation\"" , "clang/lib/AST/ASTContext.cpp", 1839, __extension__ __PRETTY_FUNCTION__ )) | |||
1838 | (uint64_t)(-1)/Size) &&(static_cast <bool> ((Size == 0 || static_cast<uint64_t >(EltInfo.Width.getQuantity()) <= (uint64_t)(-1)/Size) && "Overflow in array type char size evaluation") ? void (0) : __assert_fail ("(Size == 0 || static_cast<uint64_t>(EltInfo.Width.getQuantity()) <= (uint64_t)(-1)/Size) && \"Overflow in array type char size evaluation\"" , "clang/lib/AST/ASTContext.cpp", 1839, __extension__ __PRETTY_FUNCTION__ )) | |||
1839 | "Overflow in array type char size evaluation")(static_cast <bool> ((Size == 0 || static_cast<uint64_t >(EltInfo.Width.getQuantity()) <= (uint64_t)(-1)/Size) && "Overflow in array type char size evaluation") ? void (0) : __assert_fail ("(Size == 0 || static_cast<uint64_t>(EltInfo.Width.getQuantity()) <= (uint64_t)(-1)/Size) && \"Overflow in array type char size evaluation\"" , "clang/lib/AST/ASTContext.cpp", 1839, __extension__ __PRETTY_FUNCTION__ )); | |||
1840 | uint64_t Width = EltInfo.Width.getQuantity() * Size; | |||
1841 | unsigned Align = EltInfo.Align.getQuantity(); | |||
1842 | if (!Context.getTargetInfo().getCXXABI().isMicrosoft() || | |||
1843 | Context.getTargetInfo().getPointerWidth(LangAS::Default) == 64) | |||
1844 | Width = llvm::alignTo(Width, Align); | |||
1845 | return TypeInfoChars(CharUnits::fromQuantity(Width), | |||
1846 | CharUnits::fromQuantity(Align), | |||
1847 | EltInfo.AlignRequirement); | |||
1848 | } | |||
1849 | ||||
1850 | TypeInfoChars ASTContext::getTypeInfoInChars(const Type *T) const { | |||
1851 | if (const auto *CAT = dyn_cast<ConstantArrayType>(T)) | |||
1852 | return getConstantArrayInfoInChars(*this, CAT); | |||
1853 | TypeInfo Info = getTypeInfo(T); | |||
1854 | return TypeInfoChars(toCharUnitsFromBits(Info.Width), | |||
1855 | toCharUnitsFromBits(Info.Align), Info.AlignRequirement); | |||
1856 | } | |||
1857 | ||||
1858 | TypeInfoChars ASTContext::getTypeInfoInChars(QualType T) const { | |||
1859 | return getTypeInfoInChars(T.getTypePtr()); | |||
1860 | } | |||
1861 | ||||
1862 | bool ASTContext::isPromotableIntegerType(QualType T) const { | |||
1863 | // HLSL doesn't promote all small integer types to int, it | |||
1864 | // just uses the rank-based promotion rules for all types. | |||
1865 | if (getLangOpts().HLSL) | |||
1866 | return false; | |||
1867 | ||||
1868 | if (const auto *BT = T->getAs<BuiltinType>()) | |||
1869 | switch (BT->getKind()) { | |||
1870 | case BuiltinType::Bool: | |||
1871 | case BuiltinType::Char_S: | |||
1872 | case BuiltinType::Char_U: | |||
1873 | case BuiltinType::SChar: | |||
1874 | case BuiltinType::UChar: | |||
1875 | case BuiltinType::Short: | |||
1876 | case BuiltinType::UShort: | |||
1877 | case BuiltinType::WChar_S: | |||
1878 | case BuiltinType::WChar_U: | |||
1879 | case BuiltinType::Char8: | |||
1880 | case BuiltinType::Char16: | |||
1881 | case BuiltinType::Char32: | |||
1882 | return true; | |||
1883 | default: | |||
1884 | return false; | |||
1885 | } | |||
1886 | ||||
1887 | // Enumerated types are promotable to their compatible integer types | |||
1888 | // (C99 6.3.1.1) a.k.a. its underlying type (C++ [conv.prom]p2). | |||
1889 | if (const auto *ET = T->getAs<EnumType>()) { | |||
1890 | if (T->isDependentType() || ET->getDecl()->getPromotionType().isNull() || | |||
1891 | ET->getDecl()->isScoped()) | |||
1892 | return false; | |||
1893 | ||||
1894 | return true; | |||
1895 | } | |||
1896 | ||||
1897 | return false; | |||
1898 | } | |||
1899 | ||||
1900 | bool ASTContext::isAlignmentRequired(const Type *T) const { | |||
1901 | return getTypeInfo(T).AlignRequirement != AlignRequirementKind::None; | |||
1902 | } | |||
1903 | ||||
1904 | bool ASTContext::isAlignmentRequired(QualType T) const { | |||
1905 | return isAlignmentRequired(T.getTypePtr()); | |||
1906 | } | |||
1907 | ||||
1908 | unsigned ASTContext::getTypeAlignIfKnown(QualType T, | |||
1909 | bool NeedsPreferredAlignment) const { | |||
1910 | // An alignment on a typedef overrides anything else. | |||
1911 | if (const auto *TT = T->getAs<TypedefType>()) | |||
1912 | if (unsigned Align = TT->getDecl()->getMaxAlignment()) | |||
1913 | return Align; | |||
1914 | ||||
1915 | // If we have an (array of) complete type, we're done. | |||
1916 | T = getBaseElementType(T); | |||
1917 | if (!T->isIncompleteType()) | |||
1918 | return NeedsPreferredAlignment ? getPreferredTypeAlign(T) : getTypeAlign(T); | |||
1919 | ||||
1920 | // If we had an array type, its element type might be a typedef | |||
1921 | // type with an alignment attribute. | |||
1922 | if (const auto *TT = T->getAs<TypedefType>()) | |||
1923 | if (unsigned Align = TT->getDecl()->getMaxAlignment()) | |||
1924 | return Align; | |||
1925 | ||||
1926 | // Otherwise, see if the declaration of the type had an attribute. | |||
1927 | if (const auto *TT = T->getAs<TagType>()) | |||
1928 | return TT->getDecl()->getMaxAlignment(); | |||
1929 | ||||
1930 | return 0; | |||
1931 | } | |||
1932 | ||||
1933 | TypeInfo ASTContext::getTypeInfo(const Type *T) const { | |||
1934 | TypeInfoMap::iterator I = MemoizedTypeInfo.find(T); | |||
1935 | if (I != MemoizedTypeInfo.end()) | |||
1936 | return I->second; | |||
1937 | ||||
1938 | // This call can invalidate MemoizedTypeInfo[T], so we need a second lookup. | |||
1939 | TypeInfo TI = getTypeInfoImpl(T); | |||
1940 | MemoizedTypeInfo[T] = TI; | |||
1941 | return TI; | |||
1942 | } | |||
1943 | ||||
1944 | /// getTypeInfoImpl - Return the size of the specified type, in bits. This | |||
1945 | /// method does not work on incomplete types. | |||
1946 | /// | |||
1947 | /// FIXME: Pointers into different addr spaces could have different sizes and | |||
1948 | /// alignment requirements: getPointerInfo should take an AddrSpace, this | |||
1949 | /// should take a QualType, &c. | |||
1950 | TypeInfo ASTContext::getTypeInfoImpl(const Type *T) const { | |||
1951 | uint64_t Width = 0; | |||
1952 | unsigned Align = 8; | |||
1953 | AlignRequirementKind AlignRequirement = AlignRequirementKind::None; | |||
1954 | LangAS AS = LangAS::Default; | |||
1955 | switch (T->getTypeClass()) { | |||
1956 | #define TYPE(Class, Base) | |||
1957 | #define ABSTRACT_TYPE(Class, Base) | |||
1958 | #define NON_CANONICAL_TYPE(Class, Base) | |||
1959 | #define DEPENDENT_TYPE(Class, Base) case Type::Class: | |||
1960 | #define NON_CANONICAL_UNLESS_DEPENDENT_TYPE(Class, Base) \ | |||
1961 | case Type::Class: \ | |||
1962 | assert(!T->isDependentType() && "should not see dependent types here")(static_cast <bool> (!T->isDependentType() && "should not see dependent types here") ? void (0) : __assert_fail ("!T->isDependentType() && \"should not see dependent types here\"" , "clang/lib/AST/ASTContext.cpp", 1962, __extension__ __PRETTY_FUNCTION__ )); \ | |||
1963 | return getTypeInfo(cast<Class##Type>(T)->desugar().getTypePtr()); | |||
1964 | #include "clang/AST/TypeNodes.inc" | |||
1965 | llvm_unreachable("Should not see dependent types")::llvm::llvm_unreachable_internal("Should not see dependent types" , "clang/lib/AST/ASTContext.cpp", 1965); | |||
1966 | ||||
1967 | case Type::FunctionNoProto: | |||
1968 | case Type::FunctionProto: | |||
1969 | // GCC extension: alignof(function) = 32 bits | |||
1970 | Width = 0; | |||
1971 | Align = 32; | |||
1972 | break; | |||
1973 | ||||
1974 | case Type::IncompleteArray: | |||
1975 | case Type::VariableArray: | |||
1976 | case Type::ConstantArray: { | |||
1977 | // Model non-constant sized arrays as size zero, but track the alignment. | |||
1978 | uint64_t Size = 0; | |||
1979 | if (const auto *CAT = dyn_cast<ConstantArrayType>(T)) | |||
1980 | Size = CAT->getSize().getZExtValue(); | |||
1981 | ||||
1982 | TypeInfo EltInfo = getTypeInfo(cast<ArrayType>(T)->getElementType()); | |||
1983 | assert((Size == 0 || EltInfo.Width <= (uint64_t)(-1) / Size) &&(static_cast <bool> ((Size == 0 || EltInfo.Width <= ( uint64_t)(-1) / Size) && "Overflow in array type bit size evaluation" ) ? void (0) : __assert_fail ("(Size == 0 || EltInfo.Width <= (uint64_t)(-1) / Size) && \"Overflow in array type bit size evaluation\"" , "clang/lib/AST/ASTContext.cpp", 1984, __extension__ __PRETTY_FUNCTION__ )) | |||
1984 | "Overflow in array type bit size evaluation")(static_cast <bool> ((Size == 0 || EltInfo.Width <= ( uint64_t)(-1) / Size) && "Overflow in array type bit size evaluation" ) ? void (0) : __assert_fail ("(Size == 0 || EltInfo.Width <= (uint64_t)(-1) / Size) && \"Overflow in array type bit size evaluation\"" , "clang/lib/AST/ASTContext.cpp", 1984, __extension__ __PRETTY_FUNCTION__ )); | |||
1985 | Width = EltInfo.Width * Size; | |||
1986 | Align = EltInfo.Align; | |||
1987 | AlignRequirement = EltInfo.AlignRequirement; | |||
1988 | if (!getTargetInfo().getCXXABI().isMicrosoft() || | |||
1989 | getTargetInfo().getPointerWidth(LangAS::Default) == 64) | |||
1990 | Width = llvm::alignTo(Width, Align); | |||
1991 | break; | |||
1992 | } | |||
1993 | ||||
1994 | case Type::ExtVector: | |||
1995 | case Type::Vector: { | |||
1996 | const auto *VT = cast<VectorType>(T); | |||
1997 | TypeInfo EltInfo = getTypeInfo(VT->getElementType()); | |||
1998 | Width = VT->isExtVectorBoolType() ? VT->getNumElements() | |||
1999 | : EltInfo.Width * VT->getNumElements(); | |||
2000 | // Enforce at least byte size and alignment. | |||
2001 | Width = std::max<unsigned>(8, Width); | |||
2002 | Align = std::max<unsigned>(8, Width); | |||
2003 | ||||
2004 | // If the alignment is not a power of 2, round up to the next power of 2. | |||
2005 | // This happens for non-power-of-2 length vectors. | |||
2006 | if (Align & (Align-1)) { | |||
2007 | Align = llvm::bit_ceil(Align); | |||
2008 | Width = llvm::alignTo(Width, Align); | |||
2009 | } | |||
2010 | // Adjust the alignment based on the target max. | |||
2011 | uint64_t TargetVectorAlign = Target->getMaxVectorAlign(); | |||
2012 | if (TargetVectorAlign && TargetVectorAlign < Align) | |||
2013 | Align = TargetVectorAlign; | |||
2014 | if (VT->getVectorKind() == VectorType::SveFixedLengthDataVector) | |||
2015 | // Adjust the alignment for fixed-length SVE vectors. This is important | |||
2016 | // for non-power-of-2 vector lengths. | |||
2017 | Align = 128; | |||
2018 | else if (VT->getVectorKind() == VectorType::SveFixedLengthPredicateVector) | |||
2019 | // Adjust the alignment for fixed-length SVE predicates. | |||
2020 | Align = 16; | |||
2021 | else if (VT->getVectorKind() == VectorType::RVVFixedLengthDataVector) | |||
2022 | // Adjust the alignment for fixed-length RVV vectors. | |||
2023 | Align = 64; | |||
2024 | break; | |||
2025 | } | |||
2026 | ||||
2027 | case Type::ConstantMatrix: { | |||
2028 | const auto *MT = cast<ConstantMatrixType>(T); | |||
2029 | TypeInfo ElementInfo = getTypeInfo(MT->getElementType()); | |||
2030 | // The internal layout of a matrix value is implementation defined. | |||
2031 | // Initially be ABI compatible with arrays with respect to alignment and | |||
2032 | // size. | |||
2033 | Width = ElementInfo.Width * MT->getNumRows() * MT->getNumColumns(); | |||
2034 | Align = ElementInfo.Align; | |||
2035 | break; | |||
2036 | } | |||
2037 | ||||
2038 | case Type::Builtin: | |||
2039 | switch (cast<BuiltinType>(T)->getKind()) { | |||
2040 | default: llvm_unreachable("Unknown builtin type!")::llvm::llvm_unreachable_internal("Unknown builtin type!", "clang/lib/AST/ASTContext.cpp" , 2040); | |||
2041 | case BuiltinType::Void: | |||
2042 | // GCC extension: alignof(void) = 8 bits. | |||
2043 | Width = 0; | |||
2044 | Align = 8; | |||
2045 | break; | |||
2046 | case BuiltinType::Bool: | |||
2047 | Width = Target->getBoolWidth(); | |||
2048 | Align = Target->getBoolAlign(); | |||
2049 | break; | |||
2050 | case BuiltinType::Char_S: | |||
2051 | case BuiltinType::Char_U: | |||
2052 | case BuiltinType::UChar: | |||
2053 | case BuiltinType::SChar: | |||
2054 | case BuiltinType::Char8: | |||
2055 | Width = Target->getCharWidth(); | |||
2056 | Align = Target->getCharAlign(); | |||
2057 | break; | |||
2058 | case BuiltinType::WChar_S: | |||
2059 | case BuiltinType::WChar_U: | |||
2060 | Width = Target->getWCharWidth(); | |||
2061 | Align = Target->getWCharAlign(); | |||
2062 | break; | |||
2063 | case BuiltinType::Char16: | |||
2064 | Width = Target->getChar16Width(); | |||
2065 | Align = Target->getChar16Align(); | |||
2066 | break; | |||
2067 | case BuiltinType::Char32: | |||
2068 | Width = Target->getChar32Width(); | |||
2069 | Align = Target->getChar32Align(); | |||
2070 | break; | |||
2071 | case BuiltinType::UShort: | |||
2072 | case BuiltinType::Short: | |||
2073 | Width = Target->getShortWidth(); | |||
2074 | Align = Target->getShortAlign(); | |||
2075 | break; | |||
2076 | case BuiltinType::UInt: | |||
2077 | case BuiltinType::Int: | |||
2078 | Width = Target->getIntWidth(); | |||
2079 | Align = Target->getIntAlign(); | |||
2080 | break; | |||
2081 | case BuiltinType::ULong: | |||
2082 | case BuiltinType::Long: | |||
2083 | Width = Target->getLongWidth(); | |||
2084 | Align = Target->getLongAlign(); | |||
2085 | break; | |||
2086 | case BuiltinType::ULongLong: | |||
2087 | case BuiltinType::LongLong: | |||
2088 | Width = Target->getLongLongWidth(); | |||
2089 | Align = Target->getLongLongAlign(); | |||
2090 | break; | |||
2091 | case BuiltinType::Int128: | |||
2092 | case BuiltinType::UInt128: | |||
2093 | Width = 128; | |||
2094 | Align = Target->getInt128Align(); | |||
2095 | break; | |||
2096 | case BuiltinType::ShortAccum: | |||
2097 | case BuiltinType::UShortAccum: | |||
2098 | case BuiltinType::SatShortAccum: | |||
2099 | case BuiltinType::SatUShortAccum: | |||
2100 | Width = Target->getShortAccumWidth(); | |||
2101 | Align = Target->getShortAccumAlign(); | |||
2102 | break; | |||
2103 | case BuiltinType::Accum: | |||
2104 | case BuiltinType::UAccum: | |||
2105 | case BuiltinType::SatAccum: | |||
2106 | case BuiltinType::SatUAccum: | |||
2107 | Width = Target->getAccumWidth(); | |||
2108 | Align = Target->getAccumAlign(); | |||
2109 | break; | |||
2110 | case BuiltinType::LongAccum: | |||
2111 | case BuiltinType::ULongAccum: | |||
2112 | case BuiltinType::SatLongAccum: | |||
2113 | case BuiltinType::SatULongAccum: | |||
2114 | Width = Target->getLongAccumWidth(); | |||
2115 | Align = Target->getLongAccumAlign(); | |||
2116 | break; | |||
2117 | case BuiltinType::ShortFract: | |||
2118 | case BuiltinType::UShortFract: | |||
2119 | case BuiltinType::SatShortFract: | |||
2120 | case BuiltinType::SatUShortFract: | |||
2121 | Width = Target->getShortFractWidth(); | |||
2122 | Align = Target->getShortFractAlign(); | |||
2123 | break; | |||
2124 | case BuiltinType::Fract: | |||
2125 | case BuiltinType::UFract: | |||
2126 | case BuiltinType::SatFract: | |||
2127 | case BuiltinType::SatUFract: | |||
2128 | Width = Target->getFractWidth(); | |||
2129 | Align = Target->getFractAlign(); | |||
2130 | break; | |||
2131 | case BuiltinType::LongFract: | |||
2132 | case BuiltinType::ULongFract: | |||
2133 | case BuiltinType::SatLongFract: | |||
2134 | case BuiltinType::SatULongFract: | |||
2135 | Width = Target->getLongFractWidth(); | |||
2136 | Align = Target->getLongFractAlign(); | |||
2137 | break; | |||
2138 | case BuiltinType::BFloat16: | |||
2139 | if (Target->hasBFloat16Type()) { | |||
2140 | Width = Target->getBFloat16Width(); | |||
2141 | Align = Target->getBFloat16Align(); | |||
2142 | } else if ((getLangOpts().SYCLIsDevice || | |||
2143 | (getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice)) && | |||
2144 | AuxTarget->hasBFloat16Type()) { | |||
2145 | Width = AuxTarget->getBFloat16Width(); | |||
2146 | Align = AuxTarget->getBFloat16Align(); | |||
2147 | } | |||
2148 | break; | |||
2149 | case BuiltinType::Float16: | |||
2150 | case BuiltinType::Half: | |||
2151 | if (Target->hasFloat16Type() || !getLangOpts().OpenMP || | |||
2152 | !getLangOpts().OpenMPIsDevice) { | |||
2153 | Width = Target->getHalfWidth(); | |||
2154 | Align = Target->getHalfAlign(); | |||
2155 | } else { | |||
2156 | assert(getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice &&(static_cast <bool> (getLangOpts().OpenMP && getLangOpts ().OpenMPIsDevice && "Expected OpenMP device compilation." ) ? void (0) : __assert_fail ("getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice && \"Expected OpenMP device compilation.\"" , "clang/lib/AST/ASTContext.cpp", 2157, __extension__ __PRETTY_FUNCTION__ )) | |||
2157 | "Expected OpenMP device compilation.")(static_cast <bool> (getLangOpts().OpenMP && getLangOpts ().OpenMPIsDevice && "Expected OpenMP device compilation." ) ? void (0) : __assert_fail ("getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice && \"Expected OpenMP device compilation.\"" , "clang/lib/AST/ASTContext.cpp", 2157, __extension__ __PRETTY_FUNCTION__ )); | |||
2158 | Width = AuxTarget->getHalfWidth(); | |||
2159 | Align = AuxTarget->getHalfAlign(); | |||
2160 | } | |||
2161 | break; | |||
2162 | case BuiltinType::Float: | |||
2163 | Width = Target->getFloatWidth(); | |||
2164 | Align = Target->getFloatAlign(); | |||
2165 | break; | |||
2166 | case BuiltinType::Double: | |||
2167 | Width = Target->getDoubleWidth(); | |||
2168 | Align = Target->getDoubleAlign(); | |||
2169 | break; | |||
2170 | case BuiltinType::Ibm128: | |||
2171 | Width = Target->getIbm128Width(); | |||
2172 | Align = Target->getIbm128Align(); | |||
2173 | break; | |||
2174 | case BuiltinType::LongDouble: | |||
2175 | if (getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice && | |||
2176 | (Target->getLongDoubleWidth() != AuxTarget->getLongDoubleWidth() || | |||
2177 | Target->getLongDoubleAlign() != AuxTarget->getLongDoubleAlign())) { | |||
2178 | Width = AuxTarget->getLongDoubleWidth(); | |||
2179 | Align = AuxTarget->getLongDoubleAlign(); | |||
2180 | } else { | |||
2181 | Width = Target->getLongDoubleWidth(); | |||
2182 | Align = Target->getLongDoubleAlign(); | |||
2183 | } | |||
2184 | break; | |||
2185 | case BuiltinType::Float128: | |||
2186 | if (Target->hasFloat128Type() || !getLangOpts().OpenMP || | |||
2187 | !getLangOpts().OpenMPIsDevice) { | |||
2188 | Width = Target->getFloat128Width(); | |||
2189 | Align = Target->getFloat128Align(); | |||
2190 | } else { | |||
2191 | assert(getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice &&(static_cast <bool> (getLangOpts().OpenMP && getLangOpts ().OpenMPIsDevice && "Expected OpenMP device compilation." ) ? void (0) : __assert_fail ("getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice && \"Expected OpenMP device compilation.\"" , "clang/lib/AST/ASTContext.cpp", 2192, __extension__ __PRETTY_FUNCTION__ )) | |||
2192 | "Expected OpenMP device compilation.")(static_cast <bool> (getLangOpts().OpenMP && getLangOpts ().OpenMPIsDevice && "Expected OpenMP device compilation." ) ? void (0) : __assert_fail ("getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice && \"Expected OpenMP device compilation.\"" , "clang/lib/AST/ASTContext.cpp", 2192, __extension__ __PRETTY_FUNCTION__ )); | |||
2193 | Width = AuxTarget->getFloat128Width(); | |||
2194 | Align = AuxTarget->getFloat128Align(); | |||
2195 | } | |||
2196 | break; | |||
2197 | case BuiltinType::NullPtr: | |||
2198 | // C++ 3.9.1p11: sizeof(nullptr_t) == sizeof(void*) | |||
2199 | Width = Target->getPointerWidth(LangAS::Default); | |||
2200 | Align = Target->getPointerAlign(LangAS::Default); | |||
2201 | break; | |||
2202 | case BuiltinType::ObjCId: | |||
2203 | case BuiltinType::ObjCClass: | |||
2204 | case BuiltinType::ObjCSel: | |||
2205 | Width = Target->getPointerWidth(LangAS::Default); | |||
2206 | Align = Target->getPointerAlign(LangAS::Default); | |||
2207 | break; | |||
2208 | case BuiltinType::OCLSampler: | |||
2209 | case BuiltinType::OCLEvent: | |||
2210 | case BuiltinType::OCLClkEvent: | |||
2211 | case BuiltinType::OCLQueue: | |||
2212 | case BuiltinType::OCLReserveID: | |||
2213 | #define IMAGE_TYPE(ImgType, Id, SingletonId, Access, Suffix) \ | |||
2214 | case BuiltinType::Id: | |||
2215 | #include "clang/Basic/OpenCLImageTypes.def" | |||
2216 | #define EXT_OPAQUE_TYPE(ExtType, Id, Ext) \ | |||
2217 | case BuiltinType::Id: | |||
2218 | #include "clang/Basic/OpenCLExtensionTypes.def" | |||
2219 | AS = Target->getOpenCLTypeAddrSpace(getOpenCLTypeKind(T)); | |||
2220 | Width = Target->getPointerWidth(AS); | |||
2221 | Align = Target->getPointerAlign(AS); | |||
2222 | break; | |||
2223 | // The SVE types are effectively target-specific. The length of an | |||
2224 | // SVE_VECTOR_TYPE is only known at runtime, but it is always a multiple | |||
2225 | // of 128 bits. There is one predicate bit for each vector byte, so the | |||
2226 | // length of an SVE_PREDICATE_TYPE is always a multiple of 16 bits. | |||
2227 | // | |||
2228 | // Because the length is only known at runtime, we use a dummy value | |||
2229 | // of 0 for the static length. The alignment values are those defined | |||
2230 | // by the Procedure Call Standard for the Arm Architecture. | |||
2231 | #define SVE_VECTOR_TYPE(Name, MangledName, Id, SingletonId, NumEls, ElBits, \ | |||
2232 | IsSigned, IsFP, IsBF) \ | |||
2233 | case BuiltinType::Id: \ | |||
2234 | Width = 0; \ | |||
2235 | Align = 128; \ | |||
2236 | break; | |||
2237 | #define SVE_PREDICATE_TYPE(Name, MangledName, Id, SingletonId, NumEls) \ | |||
2238 | case BuiltinType::Id: \ | |||
2239 | Width = 0; \ | |||
2240 | Align = 16; \ | |||
2241 | break; | |||
2242 | #define SVE_OPAQUE_TYPE(Name, MangledName, Id, SingletonId) \ | |||
2243 | case BuiltinType::Id: \ | |||
2244 | Width = 0; \ | |||
2245 | Align = 16; \ | |||
2246 | break; | |||
2247 | #include "clang/Basic/AArch64SVEACLETypes.def" | |||
2248 | #define PPC_VECTOR_TYPE(Name, Id, Size) \ | |||
2249 | case BuiltinType::Id: \ | |||
2250 | Width = Size; \ | |||
2251 | Align = Size; \ | |||
2252 | break; | |||
2253 | #include "clang/Basic/PPCTypes.def" | |||
2254 | #define RVV_VECTOR_TYPE(Name, Id, SingletonId, ElKind, ElBits, NF, IsSigned, \ | |||
2255 | IsFP) \ | |||
2256 | case BuiltinType::Id: \ | |||
2257 | Width = 0; \ | |||
2258 | Align = ElBits; \ | |||
2259 | break; | |||
2260 | #define RVV_PREDICATE_TYPE(Name, Id, SingletonId, ElKind) \ | |||
2261 | case BuiltinType::Id: \ | |||
2262 | Width = 0; \ | |||
2263 | Align = 8; \ | |||
2264 | break; | |||
2265 | #include "clang/Basic/RISCVVTypes.def" | |||
2266 | #define WASM_TYPE(Name, Id, SingletonId) \ | |||
2267 | case BuiltinType::Id: \ | |||
2268 | Width = 0; \ | |||
2269 | Align = 8; \ | |||
2270 | break; | |||
2271 | #include "clang/Basic/WebAssemblyReferenceTypes.def" | |||
2272 | } | |||
2273 | break; | |||
2274 | case Type::ObjCObjectPointer: | |||
2275 | Width = Target->getPointerWidth(LangAS::Default); | |||
2276 | Align = Target->getPointerAlign(LangAS::Default); | |||
2277 | break; | |||
2278 | case Type::BlockPointer: | |||
2279 | AS = cast<BlockPointerType>(T)->getPointeeType().getAddressSpace(); | |||
2280 | Width = Target->getPointerWidth(AS); | |||
2281 | Align = Target->getPointerAlign(AS); | |||
2282 | break; | |||
2283 | case Type::LValueReference: | |||
2284 | case Type::RValueReference: | |||
2285 | // alignof and sizeof should never enter this code path here, so we go | |||
2286 | // the pointer route. | |||
2287 | AS = cast<ReferenceType>(T)->getPointeeType().getAddressSpace(); | |||
2288 | Width = Target->getPointerWidth(AS); | |||
2289 | Align = Target->getPointerAlign(AS); | |||
2290 | break; | |||
2291 | case Type::Pointer: | |||
2292 | AS = cast<PointerType>(T)->getPointeeType().getAddressSpace(); | |||
2293 | Width = Target->getPointerWidth(AS); | |||
2294 | Align = Target->getPointerAlign(AS); | |||
2295 | break; | |||
2296 | case Type::MemberPointer: { | |||
2297 | const auto *MPT = cast<MemberPointerType>(T); | |||
2298 | CXXABI::MemberPointerInfo MPI = ABI->getMemberPointerInfo(MPT); | |||
2299 | Width = MPI.Width; | |||
2300 | Align = MPI.Align; | |||
2301 | break; | |||
2302 | } | |||
2303 | case Type::Complex: { | |||
2304 | // Complex types have the same alignment as their elements, but twice the | |||
2305 | // size. | |||
2306 | TypeInfo EltInfo = getTypeInfo(cast<ComplexType>(T)->getElementType()); | |||
2307 | Width = EltInfo.Width * 2; | |||
2308 | Align = EltInfo.Align; | |||
2309 | break; | |||
2310 | } | |||
2311 | case Type::ObjCObject: | |||
2312 | return getTypeInfo(cast<ObjCObjectType>(T)->getBaseType().getTypePtr()); | |||
2313 | case Type::Adjusted: | |||
2314 | case Type::Decayed: | |||
2315 | return getTypeInfo(cast<AdjustedType>(T)->getAdjustedType().getTypePtr()); | |||
2316 | case Type::ObjCInterface: { | |||
2317 | const auto *ObjCI = cast<ObjCInterfaceType>(T); | |||
2318 | if (ObjCI->getDecl()->isInvalidDecl()) { | |||
2319 | Width = 8; | |||
2320 | Align = 8; | |||
2321 | break; | |||
2322 | } | |||
2323 | const ASTRecordLayout &Layout = getASTObjCInterfaceLayout(ObjCI->getDecl()); | |||
2324 | Width = toBits(Layout.getSize()); | |||
2325 | Align = toBits(Layout.getAlignment()); | |||
2326 | break; | |||
2327 | } | |||
2328 | case Type::BitInt: { | |||
2329 | const auto *EIT = cast<BitIntType>(T); | |||
2330 | Align = std::clamp<unsigned>(llvm::PowerOf2Ceil(EIT->getNumBits()), | |||
2331 | getCharWidth(), Target->getLongLongAlign()); | |||
2332 | Width = llvm::alignTo(EIT->getNumBits(), Align); | |||
2333 | break; | |||
2334 | } | |||
2335 | case Type::Record: | |||
2336 | case Type::Enum: { | |||
2337 | const auto *TT = cast<TagType>(T); | |||
2338 | ||||
2339 | if (TT->getDecl()->isInvalidDecl()) { | |||
2340 | Width = 8; | |||
2341 | Align = 8; | |||
2342 | break; | |||
2343 | } | |||
2344 | ||||
2345 | if (const auto *ET = dyn_cast<EnumType>(TT)) { | |||
2346 | const EnumDecl *ED = ET->getDecl(); | |||
2347 | TypeInfo Info = | |||
2348 | getTypeInfo(ED->getIntegerType()->getUnqualifiedDesugaredType()); | |||
2349 | if (unsigned AttrAlign = ED->getMaxAlignment()) { | |||
2350 | Info.Align = AttrAlign; | |||
2351 | Info.AlignRequirement = AlignRequirementKind::RequiredByEnum; | |||
2352 | } | |||
2353 | return Info; | |||
2354 | } | |||
2355 | ||||
2356 | const auto *RT = cast<RecordType>(TT); | |||
2357 | const RecordDecl *RD = RT->getDecl(); | |||
2358 | const ASTRecordLayout &Layout = getASTRecordLayout(RD); | |||
2359 | Width = toBits(Layout.getSize()); | |||
2360 | Align = toBits(Layout.getAlignment()); | |||
2361 | AlignRequirement = RD->hasAttr<AlignedAttr>() | |||
2362 | ? AlignRequirementKind::RequiredByRecord | |||
2363 | : AlignRequirementKind::None; | |||
2364 | break; | |||
2365 | } | |||
2366 | ||||
2367 | case Type::SubstTemplateTypeParm: | |||
2368 | return getTypeInfo(cast<SubstTemplateTypeParmType>(T)-> | |||
2369 | getReplacementType().getTypePtr()); | |||
2370 | ||||
2371 | case Type::Auto: | |||
2372 | case Type::DeducedTemplateSpecialization: { | |||
2373 | const auto *A = cast<DeducedType>(T); | |||
2374 | assert(!A->getDeducedType().isNull() &&(static_cast <bool> (!A->getDeducedType().isNull() && "cannot request the size of an undeduced or dependent auto type" ) ? void (0) : __assert_fail ("!A->getDeducedType().isNull() && \"cannot request the size of an undeduced or dependent auto type\"" , "clang/lib/AST/ASTContext.cpp", 2375, __extension__ __PRETTY_FUNCTION__ )) | |||
2375 | "cannot request the size of an undeduced or dependent auto type")(static_cast <bool> (!A->getDeducedType().isNull() && "cannot request the size of an undeduced or dependent auto type" ) ? void (0) : __assert_fail ("!A->getDeducedType().isNull() && \"cannot request the size of an undeduced or dependent auto type\"" , "clang/lib/AST/ASTContext.cpp", 2375, __extension__ __PRETTY_FUNCTION__ )); | |||
2376 | return getTypeInfo(A->getDeducedType().getTypePtr()); | |||
2377 | } | |||
2378 | ||||
2379 | case Type::Paren: | |||
2380 | return getTypeInfo(cast<ParenType>(T)->getInnerType().getTypePtr()); | |||
2381 | ||||
2382 | case Type::MacroQualified: | |||
2383 | return getTypeInfo( | |||
2384 | cast<MacroQualifiedType>(T)->getUnderlyingType().getTypePtr()); | |||
2385 | ||||
2386 | case Type::ObjCTypeParam: | |||
2387 | return getTypeInfo(cast<ObjCTypeParamType>(T)->desugar().getTypePtr()); | |||
2388 | ||||
2389 | case Type::Using: | |||
2390 | return getTypeInfo(cast<UsingType>(T)->desugar().getTypePtr()); | |||
2391 | ||||
2392 | case Type::Typedef: { | |||
2393 | const auto *TT = cast<TypedefType>(T); | |||
2394 | TypeInfo Info = getTypeInfo(TT->desugar().getTypePtr()); | |||
2395 | // If the typedef has an aligned attribute on it, it overrides any computed | |||
2396 | // alignment we have. This violates the GCC documentation (which says that | |||
2397 | // attribute(aligned) can only round up) but matches its implementation. | |||
2398 | if (unsigned AttrAlign = TT->getDecl()->getMaxAlignment()) { | |||
2399 | Align = AttrAlign; | |||
2400 | AlignRequirement = AlignRequirementKind::RequiredByTypedef; | |||
2401 | } else { | |||
2402 | Align = Info.Align; | |||
2403 | AlignRequirement = Info.AlignRequirement; | |||
2404 | } | |||
2405 | Width = Info.Width; | |||
2406 | break; | |||
2407 | } | |||
2408 | ||||
2409 | case Type::Elaborated: | |||
2410 | return getTypeInfo(cast<ElaboratedType>(T)->getNamedType().getTypePtr()); | |||
2411 | ||||
2412 | case Type::Attributed: | |||
2413 | return getTypeInfo( | |||
2414 | cast<AttributedType>(T)->getEquivalentType().getTypePtr()); | |||
2415 | ||||
2416 | case Type::BTFTagAttributed: | |||
2417 | return getTypeInfo( | |||
2418 | cast<BTFTagAttributedType>(T)->getWrappedType().getTypePtr()); | |||
2419 | ||||
2420 | case Type::Atomic: { | |||
2421 | // Start with the base type information. | |||
2422 | TypeInfo Info = getTypeInfo(cast<AtomicType>(T)->getValueType()); | |||
2423 | Width = Info.Width; | |||
2424 | Align = Info.Align; | |||
2425 | ||||
2426 | if (!Width) { | |||
2427 | // An otherwise zero-sized type should still generate an | |||
2428 | // atomic operation. | |||
2429 | Width = Target->getCharWidth(); | |||
2430 | assert(Align)(static_cast <bool> (Align) ? void (0) : __assert_fail ( "Align", "clang/lib/AST/ASTContext.cpp", 2430, __extension__ __PRETTY_FUNCTION__ )); | |||
2431 | } else if (Width <= Target->getMaxAtomicPromoteWidth()) { | |||
2432 | // If the size of the type doesn't exceed the platform's max | |||
2433 | // atomic promotion width, make the size and alignment more | |||
2434 | // favorable to atomic operations: | |||
2435 | ||||
2436 | // Round the size up to a power of 2. | |||
2437 | Width = llvm::bit_ceil(Width); | |||
2438 | ||||
2439 | // Set the alignment equal to the size. | |||
2440 | Align = static_cast<unsigned>(Width); | |||
2441 | } | |||
2442 | } | |||
2443 | break; | |||
2444 | ||||
2445 | case Type::Pipe: | |||
2446 | Width = Target->getPointerWidth(LangAS::opencl_global); | |||
2447 | Align = Target->getPointerAlign(LangAS::opencl_global); | |||
2448 | break; | |||
2449 | } | |||
2450 | ||||
2451 | assert(llvm::isPowerOf2_32(Align) && "Alignment must be power of 2")(static_cast <bool> (llvm::isPowerOf2_32(Align) && "Alignment must be power of 2") ? void (0) : __assert_fail ( "llvm::isPowerOf2_32(Align) && \"Alignment must be power of 2\"" , "clang/lib/AST/ASTContext.cpp", 2451, __extension__ __PRETTY_FUNCTION__ )); | |||
2452 | return TypeInfo(Width, Align, AlignRequirement); | |||
2453 | } | |||
2454 | ||||
2455 | unsigned ASTContext::getTypeUnadjustedAlign(const Type *T) const { | |||
2456 | UnadjustedAlignMap::iterator I = MemoizedUnadjustedAlign.find(T); | |||
2457 | if (I != MemoizedUnadjustedAlign.end()) | |||
2458 | return I->second; | |||
2459 | ||||
2460 | unsigned UnadjustedAlign; | |||
2461 | if (const auto *RT = T->getAs<RecordType>()) { | |||
2462 | const RecordDecl *RD = RT->getDecl(); | |||
2463 | const ASTRecordLayout &Layout = getASTRecordLayout(RD); | |||
2464 | UnadjustedAlign = toBits(Layout.getUnadjustedAlignment()); | |||
2465 | } else if (const auto *ObjCI = T->getAs<ObjCInterfaceType>()) { | |||
2466 | const ASTRecordLayout &Layout = getASTObjCInterfaceLayout(ObjCI->getDecl()); | |||
2467 | UnadjustedAlign = toBits(Layout.getUnadjustedAlignment()); | |||
2468 | } else { | |||
2469 | UnadjustedAlign = getTypeAlign(T->getUnqualifiedDesugaredType()); | |||
2470 | } | |||
2471 | ||||
2472 | MemoizedUnadjustedAlign[T] = UnadjustedAlign; | |||
2473 | return UnadjustedAlign; | |||
2474 | } | |||
2475 | ||||
2476 | unsigned ASTContext::getOpenMPDefaultSimdAlign(QualType T) const { | |||
2477 | unsigned SimdAlign = llvm::OpenMPIRBuilder::getOpenMPDefaultSimdAlign( | |||
2478 | getTargetInfo().getTriple(), Target->getTargetOpts().FeatureMap); | |||
2479 | return SimdAlign; | |||
2480 | } | |||
2481 | ||||
2482 | /// toCharUnitsFromBits - Convert a size in bits to a size in characters. | |||
2483 | CharUnits ASTContext::toCharUnitsFromBits(int64_t BitSize) const { | |||
2484 | return CharUnits::fromQuantity(BitSize / getCharWidth()); | |||
2485 | } | |||
2486 | ||||
2487 | /// toBits - Convert a size in characters to a size in characters. | |||
2488 | int64_t ASTContext::toBits(CharUnits CharSize) const { | |||
2489 | return CharSize.getQuantity() * getCharWidth(); | |||
2490 | } | |||
2491 | ||||
2492 | /// getTypeSizeInChars - Return the size of the specified type, in characters. | |||
2493 | /// This method does not work on incomplete types. | |||
2494 | CharUnits ASTContext::getTypeSizeInChars(QualType T) const { | |||
2495 | return getTypeInfoInChars(T).Width; | |||
2496 | } | |||
2497 | CharUnits ASTContext::getTypeSizeInChars(const Type *T) const { | |||
2498 | return getTypeInfoInChars(T).Width; | |||
2499 | } | |||
2500 | ||||
2501 | /// getTypeAlignInChars - Return the ABI-specified alignment of a type, in | |||
2502 | /// characters. This method does not work on incomplete types. | |||
2503 | CharUnits ASTContext::getTypeAlignInChars(QualType T) const { | |||
2504 | return toCharUnitsFromBits(getTypeAlign(T)); | |||
2505 | } | |||
2506 | CharUnits ASTContext::getTypeAlignInChars(const Type *T) const { | |||
2507 | return toCharUnitsFromBits(getTypeAlign(T)); | |||
2508 | } | |||
2509 | ||||
2510 | /// getTypeUnadjustedAlignInChars - Return the ABI-specified alignment of a | |||
2511 | /// type, in characters, before alignment adjustments. This method does | |||
2512 | /// not work on incomplete types. | |||
2513 | CharUnits ASTContext::getTypeUnadjustedAlignInChars(QualType T) const { | |||
2514 | return toCharUnitsFromBits(getTypeUnadjustedAlign(T)); | |||
2515 | } | |||
2516 | CharUnits ASTContext::getTypeUnadjustedAlignInChars(const Type *T) const { | |||
2517 | return toCharUnitsFromBits(getTypeUnadjustedAlign(T)); | |||
2518 | } | |||
2519 | ||||
2520 | /// getPreferredTypeAlign - Return the "preferred" alignment of the specified | |||
2521 | /// type for the current target in bits. This can be different than the ABI | |||
2522 | /// alignment in cases where it is beneficial for performance or backwards | |||
2523 | /// compatibility preserving to overalign a data type. (Note: despite the name, | |||
2524 | /// the preferred alignment is ABI-impacting, and not an optimization.) | |||
2525 | unsigned ASTContext::getPreferredTypeAlign(const Type *T) const { | |||
2526 | TypeInfo TI = getTypeInfo(T); | |||
2527 | unsigned ABIAlign = TI.Align; | |||
2528 | ||||
2529 | T = T->getBaseElementTypeUnsafe(); | |||
2530 | ||||
2531 | // The preferred alignment of member pointers is that of a pointer. | |||
2532 | if (T->isMemberPointerType()) | |||
2533 | return getPreferredTypeAlign(getPointerDiffType().getTypePtr()); | |||
2534 | ||||
2535 | if (!Target->allowsLargerPreferedTypeAlignment()) | |||
2536 | return ABIAlign; | |||
2537 | ||||
2538 | if (const auto *RT = T->getAs<RecordType>()) { | |||
2539 | const RecordDecl *RD = RT->getDecl(); | |||
2540 | ||||
2541 | // When used as part of a typedef, or together with a 'packed' attribute, | |||
2542 | // the 'aligned' attribute can be used to decrease alignment. Note that the | |||
2543 | // 'packed' case is already taken into consideration when computing the | |||
2544 | // alignment, we only need to handle the typedef case here. | |||
2545 | if (TI.AlignRequirement == AlignRequirementKind::RequiredByTypedef || | |||
2546 | RD->isInvalidDecl()) | |||
2547 | return ABIAlign; | |||
2548 | ||||
2549 | unsigned PreferredAlign = static_cast<unsigned>( | |||
2550 | toBits(getASTRecordLayout(RD).PreferredAlignment)); | |||
2551 | assert(PreferredAlign >= ABIAlign &&(static_cast <bool> (PreferredAlign >= ABIAlign && "PreferredAlign should be at least as large as ABIAlign.") ? void (0) : __assert_fail ("PreferredAlign >= ABIAlign && \"PreferredAlign should be at least as large as ABIAlign.\"" , "clang/lib/AST/ASTContext.cpp", 2552, __extension__ __PRETTY_FUNCTION__ )) | |||
2552 | "PreferredAlign should be at least as large as ABIAlign.")(static_cast <bool> (PreferredAlign >= ABIAlign && "PreferredAlign should be at least as large as ABIAlign.") ? void (0) : __assert_fail ("PreferredAlign >= ABIAlign && \"PreferredAlign should be at least as large as ABIAlign.\"" , "clang/lib/AST/ASTContext.cpp", 2552, __extension__ __PRETTY_FUNCTION__ )); | |||
2553 | return PreferredAlign; | |||
2554 | } | |||
2555 | ||||
2556 | // Double (and, for targets supporting AIX `power` alignment, long double) and | |||
2557 | // long long should be naturally aligned (despite requiring less alignment) if | |||
2558 | // possible. | |||
2559 | if (const auto *CT = T->getAs<ComplexType>()) | |||
2560 | T = CT->getElementType().getTypePtr(); | |||
2561 | if (const auto *ET = T->getAs<EnumType>()) | |||
2562 | T = ET->getDecl()->getIntegerType().getTypePtr(); | |||
2563 | if (T->isSpecificBuiltinType(BuiltinType::Double) || | |||
2564 | T->isSpecificBuiltinType(BuiltinType::LongLong) || | |||
2565 | T->isSpecificBuiltinType(BuiltinType::ULongLong) || | |||
2566 | (T->isSpecificBuiltinType(BuiltinType::LongDouble) && | |||
2567 | Target->defaultsToAIXPowerAlignment())) | |||
2568 | // Don't increase the alignment if an alignment attribute was specified on a | |||
2569 | // typedef declaration. | |||
2570 | if (!TI.isAlignRequired()) | |||
2571 | return std::max(ABIAlign, (unsigned)getTypeSize(T)); | |||
2572 | ||||
2573 | return ABIAlign; | |||
2574 | } | |||
2575 | ||||
2576 | /// getTargetDefaultAlignForAttributeAligned - Return the default alignment | |||
2577 | /// for __attribute__((aligned)) on this target, to be used if no alignment | |||
2578 | /// value is specified. | |||
2579 | unsigned ASTContext::getTargetDefaultAlignForAttributeAligned() const { | |||
2580 | return getTargetInfo().getDefaultAlignForAttributeAligned(); | |||
2581 | } | |||
2582 | ||||
2583 | /// getAlignOfGlobalVar - Return the alignment in bits that should be given | |||
2584 | /// to a global variable of the specified type. | |||
2585 | unsigned ASTContext::getAlignOfGlobalVar(QualType T) const { | |||
2586 | uint64_t TypeSize = getTypeSize(T.getTypePtr()); | |||
2587 | return std::max(getPreferredTypeAlign(T), | |||
2588 | getTargetInfo().getMinGlobalAlign(TypeSize)); | |||
2589 | } | |||
2590 | ||||
2591 | /// getAlignOfGlobalVarInChars - Return the alignment in characters that | |||
2592 | /// should be given to a global variable of the specified type. | |||
2593 | CharUnits ASTContext::getAlignOfGlobalVarInChars(QualType T) const { | |||
2594 | return toCharUnitsFromBits(getAlignOfGlobalVar(T)); | |||
2595 | } | |||
2596 | ||||
2597 | CharUnits ASTContext::getOffsetOfBaseWithVBPtr(const CXXRecordDecl *RD) const { | |||
2598 | CharUnits Offset = CharUnits::Zero(); | |||
2599 | const ASTRecordLayout *Layout = &getASTRecordLayout(RD); | |||
2600 | while (const CXXRecordDecl *Base = Layout->getBaseSharingVBPtr()) { | |||
2601 | Offset += Layout->getBaseClassOffset(Base); | |||
2602 | Layout = &getASTRecordLayout(Base); | |||
2603 | } | |||
2604 | return Offset; | |||
2605 | } | |||
2606 | ||||
2607 | CharUnits ASTContext::getMemberPointerPathAdjustment(const APValue &MP) const { | |||
2608 | const ValueDecl *MPD = MP.getMemberPointerDecl(); | |||
2609 | CharUnits ThisAdjustment = CharUnits::Zero(); | |||
2610 | ArrayRef<const CXXRecordDecl*> Path = MP.getMemberPointerPath(); | |||
2611 | bool DerivedMember = MP.isMemberPointerToDerivedMember(); | |||
2612 | const CXXRecordDecl *RD = cast<CXXRecordDecl>(MPD->getDeclContext()); | |||
2613 | for (unsigned I = 0, N = Path.size(); I != N; ++I) { | |||
2614 | const CXXRecordDecl *Base = RD; | |||
2615 | const CXXRecordDecl *Derived = Path[I]; | |||
2616 | if (DerivedMember) | |||
2617 | std::swap(Base, Derived); | |||
2618 | ThisAdjustment += getASTRecordLayout(Derived).getBaseClassOffset(Base); | |||
2619 | RD = Path[I]; | |||
2620 | } | |||
2621 | if (DerivedMember) | |||
2622 | ThisAdjustment = -ThisAdjustment; | |||
2623 | return ThisAdjustment; | |||
2624 | } | |||
2625 | ||||
2626 | /// DeepCollectObjCIvars - | |||
2627 | /// This routine first collects all declared, but not synthesized, ivars in | |||
2628 | /// super class and then collects all ivars, including those synthesized for | |||
2629 | /// current class. This routine is used for implementation of current class | |||
2630 | /// when all ivars, declared and synthesized are known. | |||
2631 | void ASTContext::DeepCollectObjCIvars(const ObjCInterfaceDecl *OI, | |||
2632 | bool leafClass, | |||
2633 | SmallVectorImpl<const ObjCIvarDecl*> &Ivars) const { | |||
2634 | if (const ObjCInterfaceDecl *SuperClass = OI->getSuperClass()) | |||
2635 | DeepCollectObjCIvars(SuperClass, false, Ivars); | |||
2636 | if (!leafClass) { | |||
2637 | llvm::append_range(Ivars, OI->ivars()); | |||
2638 | } else { | |||
2639 | auto *IDecl = const_cast<ObjCInterfaceDecl *>(OI); | |||
2640 | for (const ObjCIvarDecl *Iv = IDecl->all_declared_ivar_begin(); Iv; | |||
2641 | Iv= Iv->getNextIvar()) | |||
2642 | Ivars.push_back(Iv); | |||
2643 | } | |||
2644 | } | |||
2645 | ||||
2646 | /// CollectInheritedProtocols - Collect all protocols in current class and | |||
2647 | /// those inherited by it. | |||
2648 | void ASTContext::CollectInheritedProtocols(const Decl *CDecl, | |||
2649 | llvm::SmallPtrSet<ObjCProtocolDecl*, 8> &Protocols) { | |||
2650 | if (const auto *OI = dyn_cast<ObjCInterfaceDecl>(CDecl)) { | |||
2651 | // We can use protocol_iterator here instead of | |||
2652 | // all_referenced_protocol_iterator since we are walking all categories. | |||
2653 | for (auto *Proto : OI->all_referenced_protocols()) { | |||
2654 | CollectInheritedProtocols(Proto, Protocols); | |||
2655 | } | |||
2656 | ||||
2657 | // Categories of this Interface. | |||
2658 | for (const auto *Cat : OI->visible_categories()) | |||
2659 | CollectInheritedProtocols(Cat, Protocols); | |||
2660 | ||||
2661 | if (ObjCInterfaceDecl *SD = OI->getSuperClass()) | |||
2662 | while (SD) { | |||
2663 | CollectInheritedProtocols(SD, Protocols); | |||
2664 | SD = SD->getSuperClass(); | |||
2665 | } | |||
2666 | } else if (const auto *OC = dyn_cast<ObjCCategoryDecl>(CDecl)) { | |||
2667 | for (auto *Proto : OC->protocols()) { | |||
2668 | CollectInheritedProtocols(Proto, Protocols); | |||
2669 | } | |||
2670 | } else if (const auto *OP = dyn_cast<ObjCProtocolDecl>(CDecl)) { | |||
2671 | // Insert the protocol. | |||
2672 | if (!Protocols.insert( | |||
2673 | const_cast<ObjCProtocolDecl *>(OP->getCanonicalDecl())).second) | |||
2674 | return; | |||
2675 | ||||
2676 | for (auto *Proto : OP->protocols()) | |||
2677 | CollectInheritedProtocols(Proto, Protocols); | |||
2678 | } | |||
2679 | } | |||
2680 | ||||
2681 | static bool unionHasUniqueObjectRepresentations(const ASTContext &Context, | |||
2682 | const RecordDecl *RD, | |||
2683 | bool CheckIfTriviallyCopyable) { | |||
2684 | assert(RD->isUnion() && "Must be union type")(static_cast <bool> (RD->isUnion() && "Must be union type" ) ? void (0) : __assert_fail ("RD->isUnion() && \"Must be union type\"" , "clang/lib/AST/ASTContext.cpp", 2684, __extension__ __PRETTY_FUNCTION__ )); | |||
2685 | CharUnits UnionSize = Context.getTypeSizeInChars(RD->getTypeForDecl()); | |||
2686 | ||||
2687 | for (const auto *Field : RD->fields()) { | |||
2688 | if (!Context.hasUniqueObjectRepresentations(Field->getType(), | |||
2689 | CheckIfTriviallyCopyable)) | |||
2690 | return false; | |||
2691 | CharUnits FieldSize = Context.getTypeSizeInChars(Field->getType()); | |||
2692 | if (FieldSize != UnionSize) | |||
2693 | return false; | |||
2694 | } | |||
2695 | return !RD->field_empty(); | |||
2696 | } | |||
2697 | ||||
2698 | static int64_t getSubobjectOffset(const FieldDecl *Field, | |||
2699 | const ASTContext &Context, | |||
2700 | const clang::ASTRecordLayout & /*Layout*/) { | |||
2701 | return Context.getFieldOffset(Field); | |||
2702 | } | |||
2703 | ||||
2704 | static int64_t getSubobjectOffset(const CXXRecordDecl *RD, | |||
2705 | const ASTContext &Context, | |||
2706 | const clang::ASTRecordLayout &Layout) { | |||
2707 | return Context.toBits(Layout.getBaseClassOffset(RD)); | |||
2708 | } | |||
2709 | ||||
2710 | static std::optional<int64_t> | |||
2711 | structHasUniqueObjectRepresentations(const ASTContext &Context, | |||
2712 | const RecordDecl *RD, | |||
2713 | bool CheckIfTriviallyCopyable); | |||
2714 | ||||
2715 | static std::optional<int64_t> | |||
2716 | getSubobjectSizeInBits(const FieldDecl *Field, const ASTContext &Context, | |||
2717 | bool CheckIfTriviallyCopyable) { | |||
2718 | if (Field->getType()->isRecordType()) { | |||
2719 | const RecordDecl *RD = Field->getType()->getAsRecordDecl(); | |||
2720 | if (!RD->isUnion()) | |||
2721 | return structHasUniqueObjectRepresentations(Context, RD, | |||
2722 | CheckIfTriviallyCopyable); | |||
2723 | } | |||
2724 | ||||
2725 | // A _BitInt type may not be unique if it has padding bits | |||
2726 | // but if it is a bitfield the padding bits are not used. | |||
2727 | bool IsBitIntType = Field->getType()->isBitIntType(); | |||
2728 | if (!Field->getType()->isReferenceType() && !IsBitIntType && | |||
2729 | !Context.hasUniqueObjectRepresentations(Field->getType(), | |||
2730 | CheckIfTriviallyCopyable)) | |||
2731 | return std::nullopt; | |||
2732 | ||||
2733 | int64_t FieldSizeInBits = | |||
2734 | Context.toBits(Context.getTypeSizeInChars(Field->getType())); | |||
2735 | if (Field->isBitField()) { | |||
2736 | // If we have explicit padding bits, they don't contribute bits | |||
2737 | // to the actual object representation, so return 0. | |||
2738 | if (Field->isUnnamedBitfield()) | |||
2739 | return 0; | |||
2740 | ||||
2741 | int64_t BitfieldSize = Field->getBitWidthValue(Context); | |||
2742 | if (IsBitIntType) { | |||
2743 | if ((unsigned)BitfieldSize > | |||
2744 | cast<BitIntType>(Field->getType())->getNumBits()) | |||
2745 | return std::nullopt; | |||
2746 | } else if (BitfieldSize > FieldSizeInBits) { | |||
2747 | return std::nullopt; | |||
2748 | } | |||
2749 | FieldSizeInBits = BitfieldSize; | |||
2750 | } else if (IsBitIntType && !Context.hasUniqueObjectRepresentations( | |||
2751 | Field->getType(), CheckIfTriviallyCopyable)) { | |||
2752 | return std::nullopt; | |||
2753 | } | |||
2754 | return FieldSizeInBits; | |||
2755 | } | |||
2756 | ||||
2757 | static std::optional<int64_t> | |||
2758 | getSubobjectSizeInBits(const CXXRecordDecl *RD, const ASTContext &Context, | |||
2759 | bool CheckIfTriviallyCopyable) { | |||
2760 | return structHasUniqueObjectRepresentations(Context, RD, | |||
2761 | CheckIfTriviallyCopyable); | |||
2762 | } | |||
2763 | ||||
2764 | template <typename RangeT> | |||
2765 | static std::optional<int64_t> structSubobjectsHaveUniqueObjectRepresentations( | |||
2766 | const RangeT &Subobjects, int64_t CurOffsetInBits, | |||
2767 | const ASTContext &Context, const clang::ASTRecordLayout &Layout, | |||
2768 | bool CheckIfTriviallyCopyable) { | |||
2769 | for (const auto *Subobject : Subobjects) { | |||
2770 | std::optional<int64_t> SizeInBits = | |||
2771 | getSubobjectSizeInBits(Subobject, Context, CheckIfTriviallyCopyable); | |||
2772 | if (!SizeInBits) | |||
2773 | return std::nullopt; | |||
2774 | if (*SizeInBits != 0) { | |||
2775 | int64_t Offset = getSubobjectOffset(Subobject, Context, Layout); | |||
2776 | if (Offset != CurOffsetInBits) | |||
2777 | return std::nullopt; | |||
2778 | CurOffsetInBits += *SizeInBits; | |||
2779 | } | |||
2780 | } | |||
2781 | return CurOffsetInBits; | |||
2782 | } | |||
2783 | ||||
2784 | static std::optional<int64_t> | |||
2785 | structHasUniqueObjectRepresentations(const ASTContext &Context, | |||
2786 | const RecordDecl *RD, | |||
2787 | bool CheckIfTriviallyCopyable) { | |||
2788 | assert(!RD->isUnion() && "Must be struct/class type")(static_cast <bool> (!RD->isUnion() && "Must be struct/class type" ) ? void (0) : __assert_fail ("!RD->isUnion() && \"Must be struct/class type\"" , "clang/lib/AST/ASTContext.cpp", 2788, __extension__ __PRETTY_FUNCTION__ )); | |||
2789 | const auto &Layout = Context.getASTRecordLayout(RD); | |||
2790 | ||||
2791 | int64_t CurOffsetInBits = 0; | |||
2792 | if (const auto *ClassDecl = dyn_cast<CXXRecordDecl>(RD)) { | |||
2793 | if (ClassDecl->isDynamicClass()) | |||
2794 | return std::nullopt; | |||
2795 | ||||
2796 | SmallVector<CXXRecordDecl *, 4> Bases; | |||
2797 | for (const auto &Base : ClassDecl->bases()) { | |||
2798 | // Empty types can be inherited from, and non-empty types can potentially | |||
2799 | // have tail padding, so just make sure there isn't an error. | |||
2800 | Bases.emplace_back(Base.getType()->getAsCXXRecordDecl()); | |||
2801 | } | |||
2802 | ||||
2803 | llvm::sort(Bases, [&](const CXXRecordDecl *L, const CXXRecordDecl *R) { | |||
2804 | return Layout.getBaseClassOffset(L) < Layout.getBaseClassOffset(R); | |||
2805 | }); | |||
2806 | ||||
2807 | std::optional<int64_t> OffsetAfterBases = | |||
2808 | structSubobjectsHaveUniqueObjectRepresentations( | |||
2809 | Bases, CurOffsetInBits, Context, Layout, CheckIfTriviallyCopyable); | |||
2810 | if (!OffsetAfterBases) | |||
2811 | return std::nullopt; | |||
2812 | CurOffsetInBits = *OffsetAfterBases; | |||
2813 | } | |||
2814 | ||||
2815 | std::optional<int64_t> OffsetAfterFields = | |||
2816 | structSubobjectsHaveUniqueObjectRepresentations( | |||
2817 | RD->fields(), CurOffsetInBits, Context, Layout, | |||
2818 | CheckIfTriviallyCopyable); | |||
2819 | if (!OffsetAfterFields) | |||
2820 | return std::nullopt; | |||
2821 | CurOffsetInBits = *OffsetAfterFields; | |||
2822 | ||||
2823 | return CurOffsetInBits; | |||
2824 | } | |||
2825 | ||||
2826 | bool ASTContext::hasUniqueObjectRepresentations( | |||
2827 | QualType Ty, bool CheckIfTriviallyCopyable) const { | |||
2828 | // C++17 [meta.unary.prop]: | |||
2829 | // The predicate condition for a template specialization | |||
2830 | // has_unique_object_representations<T> shall be | |||
2831 | // satisfied if and only if: | |||
2832 | // (9.1) - T is trivially copyable, and | |||
2833 | // (9.2) - any two objects of type T with the same value have the same | |||
2834 | // object representation, where two objects | |||
2835 | // of array or non-union class type are considered to have the same value | |||
2836 | // if their respective sequences of | |||
2837 | // direct subobjects have the same values, and two objects of union type | |||
2838 | // are considered to have the same | |||
2839 | // value if they have the same active member and the corresponding members | |||
2840 | // have the same value. | |||
2841 | // The set of scalar types for which this condition holds is | |||
2842 | // implementation-defined. [ Note: If a type has padding | |||
2843 | // bits, the condition does not hold; otherwise, the condition holds true | |||
2844 | // for unsigned integral types. -- end note ] | |||
2845 | assert(!Ty.isNull() && "Null QualType sent to unique object rep check")(static_cast <bool> (!Ty.isNull() && "Null QualType sent to unique object rep check" ) ? void (0) : __assert_fail ("!Ty.isNull() && \"Null QualType sent to unique object rep check\"" , "clang/lib/AST/ASTContext.cpp", 2845, __extension__ __PRETTY_FUNCTION__ )); | |||
2846 | ||||
2847 | // Arrays are unique only if their element type is unique. | |||
2848 | if (Ty->isArrayType()) | |||
2849 | return hasUniqueObjectRepresentations(getBaseElementType(Ty), | |||
2850 | CheckIfTriviallyCopyable); | |||
2851 | ||||
2852 | // (9.1) - T is trivially copyable... | |||
2853 | if (CheckIfTriviallyCopyable && !Ty.isTriviallyCopyableType(*this)) | |||
2854 | return false; | |||
2855 | ||||
2856 | // All integrals and enums are unique. | |||
2857 | if (Ty->isIntegralOrEnumerationType()) { | |||
2858 | // Except _BitInt types that have padding bits. | |||
2859 | if (const auto *BIT = Ty->getAs<BitIntType>()) | |||
2860 | return getTypeSize(BIT) == BIT->getNumBits(); | |||
2861 | ||||
2862 | return true; | |||
2863 | } | |||
2864 | ||||
2865 | // All other pointers are unique. | |||
2866 | if (Ty->isPointerType()) | |||
2867 | return true; | |||
2868 | ||||
2869 | if (const auto *MPT = Ty->getAs<MemberPointerType>()) | |||
2870 | return !ABI->getMemberPointerInfo(MPT).HasPadding; | |||
2871 | ||||
2872 | if (Ty->isRecordType()) { | |||
2873 | const RecordDecl *Record = Ty->castAs<RecordType>()->getDecl(); | |||
2874 | ||||
2875 | if (Record->isInvalidDecl()) | |||
2876 | return false; | |||
2877 | ||||
2878 | if (Record->isUnion()) | |||
2879 | return unionHasUniqueObjectRepresentations(*this, Record, | |||
2880 | CheckIfTriviallyCopyable); | |||
2881 | ||||
2882 | std::optional<int64_t> StructSize = structHasUniqueObjectRepresentations( | |||
2883 | *this, Record, CheckIfTriviallyCopyable); | |||
2884 | ||||
2885 | return StructSize && *StructSize == static_cast<int64_t>(getTypeSize(Ty)); | |||
2886 | } | |||
2887 | ||||
2888 | // FIXME: More cases to handle here (list by rsmith): | |||
2889 | // vectors (careful about, eg, vector of 3 foo) | |||
2890 | // _Complex int and friends | |||
2891 | // _Atomic T | |||
2892 | // Obj-C block pointers | |||
2893 | // Obj-C object pointers | |||
2894 | // and perhaps OpenCL's various builtin types (pipe, sampler_t, event_t, | |||
2895 | // clk_event_t, queue_t, reserve_id_t) | |||
2896 | // There're also Obj-C class types and the Obj-C selector type, but I think it | |||
2897 | // makes sense for those to return false here. | |||
2898 | ||||
2899 | return false; | |||
2900 | } | |||
2901 | ||||
2902 | unsigned ASTContext::CountNonClassIvars(const ObjCInterfaceDecl *OI) const { | |||
2903 | unsigned count = 0; | |||
2904 | // Count ivars declared in class extension. | |||
2905 | for (const auto *Ext : OI->known_extensions()) | |||
2906 | count += Ext->ivar_size(); | |||
2907 | ||||
2908 | // Count ivar defined in this class's implementation. This | |||
2909 | // includes synthesized ivars. | |||
2910 | if (ObjCImplementationDecl *ImplDecl = OI->getImplementation()) | |||
2911 | count += ImplDecl->ivar_size(); | |||
2912 | ||||
2913 | return count; | |||
2914 | } | |||
2915 | ||||
2916 | bool ASTContext::isSentinelNullExpr(const Expr *E) { | |||
2917 | if (!E) | |||
2918 | return false; | |||
2919 | ||||
2920 | // nullptr_t is always treated as null. | |||
2921 | if (E->getType()->isNullPtrType()) return true; | |||
2922 | ||||
2923 | if (E->getType()->isAnyPointerType() && | |||
2924 | E->IgnoreParenCasts()->isNullPointerConstant(*this, | |||
2925 | Expr::NPC_ValueDependentIsNull)) | |||
2926 | return true; | |||
2927 | ||||
2928 | // Unfortunately, __null has type 'int'. | |||
2929 | if (isa<GNUNullExpr>(E)) return true; | |||
2930 | ||||
2931 | return false; | |||
2932 | } | |||
2933 | ||||
2934 | /// Get the implementation of ObjCInterfaceDecl, or nullptr if none | |||
2935 | /// exists. | |||
2936 | ObjCImplementationDecl *ASTContext::getObjCImplementation(ObjCInterfaceDecl *D) { | |||
2937 | llvm::DenseMap<ObjCContainerDecl*, ObjCImplDecl*>::iterator | |||
2938 | I = ObjCImpls.find(D); | |||
2939 | if (I != ObjCImpls.end()) | |||
2940 | return cast<ObjCImplementationDecl>(I->second); | |||
2941 | return nullptr; | |||
2942 | } | |||
2943 | ||||
2944 | /// Get the implementation of ObjCCategoryDecl, or nullptr if none | |||
2945 | /// exists. | |||
2946 | ObjCCategoryImplDecl *ASTContext::getObjCImplementation(ObjCCategoryDecl *D) { | |||
2947 | llvm::DenseMap<ObjCContainerDecl*, ObjCImplDecl*>::iterator | |||
2948 | I = ObjCImpls.find(D); | |||
2949 | if (I != ObjCImpls.end()) | |||
2950 | return cast<ObjCCategoryImplDecl>(I->second); | |||
2951 | return nullptr; | |||
2952 | } | |||
2953 | ||||
2954 | /// Set the implementation of ObjCInterfaceDecl. | |||
2955 | void ASTContext::setObjCImplementation(ObjCInterfaceDecl *IFaceD, | |||
2956 | ObjCImplementationDecl *ImplD) { | |||
2957 | assert(IFaceD && ImplD && "Passed null params")(static_cast <bool> (IFaceD && ImplD && "Passed null params") ? void (0) : __assert_fail ("IFaceD && ImplD && \"Passed null params\"" , "clang/lib/AST/ASTContext.cpp", 2957, __extension__ __PRETTY_FUNCTION__ )); | |||
2958 | ObjCImpls[IFaceD] = ImplD; | |||
2959 | } | |||
2960 | ||||
2961 | /// Set the implementation of ObjCCategoryDecl. | |||
2962 | void ASTContext::setObjCImplementation(ObjCCategoryDecl *CatD, | |||
2963 | ObjCCategoryImplDecl *ImplD) { | |||
2964 | assert(CatD && ImplD && "Passed null params")(static_cast <bool> (CatD && ImplD && "Passed null params" ) ? void (0) : __assert_fail ("CatD && ImplD && \"Passed null params\"" , "clang/lib/AST/ASTContext.cpp", 2964, __extension__ __PRETTY_FUNCTION__ )); | |||
2965 | ObjCImpls[CatD] = ImplD; | |||
2966 | } | |||
2967 | ||||
2968 | const ObjCMethodDecl * | |||
2969 | ASTContext::getObjCMethodRedeclaration(const ObjCMethodDecl *MD) const { | |||
2970 | return ObjCMethodRedecls.lookup(MD); | |||
2971 | } | |||
2972 | ||||
2973 | void ASTContext::setObjCMethodRedeclaration(const ObjCMethodDecl *MD, | |||
2974 | const ObjCMethodDecl *Redecl) { | |||
2975 | assert(!getObjCMethodRedeclaration(MD) && "MD already has a redeclaration")(static_cast <bool> (!getObjCMethodRedeclaration(MD) && "MD already has a redeclaration") ? void (0) : __assert_fail ("!getObjCMethodRedeclaration(MD) && \"MD already has a redeclaration\"" , "clang/lib/AST/ASTContext.cpp", 2975, __extension__ __PRETTY_FUNCTION__ )); | |||
2976 | ObjCMethodRedecls[MD] = Redecl; | |||
2977 | } | |||
2978 | ||||
2979 | const ObjCInterfaceDecl *ASTContext::getObjContainingInterface( | |||
2980 | const NamedDecl *ND) const { | |||
2981 | if (const auto *ID = dyn_cast<ObjCInterfaceDecl>(ND->getDeclContext())) | |||
2982 | return ID; | |||
2983 | if (const auto *CD = dyn_cast<ObjCCategoryDecl>(ND->getDeclContext())) | |||
2984 | return CD->getClassInterface(); | |||
2985 | if (const auto *IMD = dyn_cast<ObjCImplDecl>(ND->getDeclContext())) | |||
2986 | return IMD->getClassInterface(); | |||
2987 | ||||
2988 | return nullptr; | |||
2989 | } | |||
2990 | ||||
2991 | /// Get the copy initialization expression of VarDecl, or nullptr if | |||
2992 | /// none exists. | |||
2993 | BlockVarCopyInit ASTContext::getBlockVarCopyInit(const VarDecl *VD) const { | |||
2994 | assert(VD && "Passed null params")(static_cast <bool> (VD && "Passed null params" ) ? void (0) : __assert_fail ("VD && \"Passed null params\"" , "clang/lib/AST/ASTContext.cpp", 2994, __extension__ __PRETTY_FUNCTION__ )); | |||
2995 | assert(VD->hasAttr<BlocksAttr>() &&(static_cast <bool> (VD->hasAttr<BlocksAttr>() && "getBlockVarCopyInits - not __block var") ? void ( 0) : __assert_fail ("VD->hasAttr<BlocksAttr>() && \"getBlockVarCopyInits - not __block var\"" , "clang/lib/AST/ASTContext.cpp", 2996, __extension__ __PRETTY_FUNCTION__ )) | |||
2996 | "getBlockVarCopyInits - not __block var")(static_cast <bool> (VD->hasAttr<BlocksAttr>() && "getBlockVarCopyInits - not __block var") ? void ( 0) : __assert_fail ("VD->hasAttr<BlocksAttr>() && \"getBlockVarCopyInits - not __block var\"" , "clang/lib/AST/ASTContext.cpp", 2996, __extension__ __PRETTY_FUNCTION__ )); | |||
2997 | auto I = BlockVarCopyInits.find(VD); | |||
2998 | if (I != BlockVarCopyInits.end()) | |||
2999 | return I->second; | |||
3000 | return {nullptr, false}; | |||
3001 | } | |||
3002 | ||||
3003 | /// Set the copy initialization expression of a block var decl. | |||
3004 | void ASTContext::setBlockVarCopyInit(const VarDecl*VD, Expr *CopyExpr, | |||
3005 | bool CanThrow) { | |||
3006 | assert(VD && CopyExpr && "Passed null params")(static_cast <bool> (VD && CopyExpr && "Passed null params" ) ? void (0) : __assert_fail ("VD && CopyExpr && \"Passed null params\"" , "clang/lib/AST/ASTContext.cpp", 3006, __extension__ __PRETTY_FUNCTION__ )); | |||
3007 | assert(VD->hasAttr<BlocksAttr>() &&(static_cast <bool> (VD->hasAttr<BlocksAttr>() && "setBlockVarCopyInits - not __block var") ? void ( 0) : __assert_fail ("VD->hasAttr<BlocksAttr>() && \"setBlockVarCopyInits - not __block var\"" , "clang/lib/AST/ASTContext.cpp", 3008, __extension__ __PRETTY_FUNCTION__ )) | |||
3008 | "setBlockVarCopyInits - not __block var")(static_cast <bool> (VD->hasAttr<BlocksAttr>() && "setBlockVarCopyInits - not __block var") ? void ( 0) : __assert_fail ("VD->hasAttr<BlocksAttr>() && \"setBlockVarCopyInits - not __block var\"" , "clang/lib/AST/ASTContext.cpp", 3008, __extension__ __PRETTY_FUNCTION__ )); | |||
3009 | BlockVarCopyInits[VD].setExprAndFlag(CopyExpr, CanThrow); | |||
3010 | } | |||
3011 | ||||
3012 | TypeSourceInfo *ASTContext::CreateTypeSourceInfo(QualType T, | |||
3013 | unsigned DataSize) const { | |||
3014 | if (!DataSize) | |||
3015 | DataSize = TypeLoc::getFullDataSizeForType(T); | |||
3016 | else | |||
3017 | assert(DataSize == TypeLoc::getFullDataSizeForType(T) &&(static_cast <bool> (DataSize == TypeLoc::getFullDataSizeForType (T) && "incorrect data size provided to CreateTypeSourceInfo!" ) ? void (0) : __assert_fail ("DataSize == TypeLoc::getFullDataSizeForType(T) && \"incorrect data size provided to CreateTypeSourceInfo!\"" , "clang/lib/AST/ASTContext.cpp", 3018, __extension__ __PRETTY_FUNCTION__ )) | |||
3018 | "incorrect data size provided to CreateTypeSourceInfo!")(static_cast <bool> (DataSize == TypeLoc::getFullDataSizeForType (T) && "incorrect data size provided to CreateTypeSourceInfo!" ) ? void (0) : __assert_fail ("DataSize == TypeLoc::getFullDataSizeForType(T) && \"incorrect data size provided to CreateTypeSourceInfo!\"" , "clang/lib/AST/ASTContext.cpp", 3018, __extension__ __PRETTY_FUNCTION__ )); | |||
3019 | ||||
3020 | auto *TInfo = | |||
3021 | (TypeSourceInfo*)BumpAlloc.Allocate(sizeof(TypeSourceInfo) + DataSize, 8); | |||
3022 | new (TInfo) TypeSourceInfo(T); | |||
3023 | return TInfo; | |||
3024 | } | |||
3025 | ||||
3026 | TypeSourceInfo *ASTContext::getTrivialTypeSourceInfo(QualType T, | |||
3027 | SourceLocation L) const { | |||
3028 | TypeSourceInfo *DI = CreateTypeSourceInfo(T); | |||
3029 | DI->getTypeLoc().initialize(const_cast<ASTContext &>(*this), L); | |||
3030 | return DI; | |||
3031 | } | |||
3032 | ||||
3033 | const ASTRecordLayout & | |||
3034 | ASTContext::getASTObjCInterfaceLayout(const ObjCInterfaceDecl *D) const { | |||
3035 | return getObjCLayout(D, nullptr); | |||
3036 | } | |||
3037 | ||||
3038 | const ASTRecordLayout & | |||
3039 | ASTContext::getASTObjCImplementationLayout( | |||
3040 | const ObjCImplementationDecl *D) const { | |||
3041 | return getObjCLayout(D->getClassInterface(), D); | |||
3042 | } | |||
3043 | ||||
3044 | static auto getCanonicalTemplateArguments(const ASTContext &C, | |||
3045 | ArrayRef<TemplateArgument> Args, | |||
3046 | bool &AnyNonCanonArgs) { | |||
3047 | SmallVector<TemplateArgument, 16> CanonArgs(Args); | |||
3048 | for (auto &Arg : CanonArgs) { | |||
3049 | TemplateArgument OrigArg = Arg; | |||
3050 | Arg = C.getCanonicalTemplateArgument(Arg); | |||
3051 | AnyNonCanonArgs |= !Arg.structurallyEquals(OrigArg); | |||
3052 | } | |||
3053 | return CanonArgs; | |||
3054 | } | |||
3055 | ||||
3056 | //===----------------------------------------------------------------------===// | |||
3057 | // Type creation/memoization methods | |||
3058 | //===----------------------------------------------------------------------===// | |||
3059 | ||||
3060 | QualType | |||
3061 | ASTContext::getExtQualType(const Type *baseType, Qualifiers quals) const { | |||
3062 | unsigned fastQuals = quals.getFastQualifiers(); | |||
3063 | quals.removeFastQualifiers(); | |||
3064 | ||||
3065 | // Check if we've already instantiated this type. | |||
3066 | llvm::FoldingSetNodeID ID; | |||
3067 | ExtQuals::Profile(ID, baseType, quals); | |||
3068 | void *insertPos = nullptr; | |||
3069 | if (ExtQuals *eq = ExtQualNodes.FindNodeOrInsertPos(ID, insertPos)) { | |||
3070 | assert(eq->getQualifiers() == quals)(static_cast <bool> (eq->getQualifiers() == quals) ? void (0) : __assert_fail ("eq->getQualifiers() == quals", "clang/lib/AST/ASTContext.cpp", 3070, __extension__ __PRETTY_FUNCTION__ )); | |||
3071 | return QualType(eq, fastQuals); | |||
3072 | } | |||
3073 | ||||
3074 | // If the base type is not canonical, make the appropriate canonical type. | |||
3075 | QualType canon; | |||
3076 | if (!baseType->isCanonicalUnqualified()) { | |||
3077 | SplitQualType canonSplit = baseType->getCanonicalTypeInternal().split(); | |||
3078 | canonSplit.Quals.addConsistentQualifiers(quals); | |||
3079 | canon = getExtQualType(canonSplit.Ty, canonSplit.Quals); | |||
3080 | ||||
3081 | // Re-find the insert position. | |||
3082 | (void) ExtQualNodes.FindNodeOrInsertPos(ID, insertPos); | |||
3083 | } | |||
3084 | ||||
3085 | auto *eq = new (*this, TypeAlignment) ExtQuals(baseType, canon, quals); | |||
3086 | ExtQualNodes.InsertNode(eq, insertPos); | |||
3087 | return QualType(eq, fastQuals); | |||
3088 | } | |||
3089 | ||||
3090 | QualType ASTContext::getAddrSpaceQualType(QualType T, | |||
3091 | LangAS AddressSpace) const { | |||
3092 | QualType CanT = getCanonicalType(T); | |||
3093 | if (CanT.getAddressSpace() == AddressSpace) | |||
3094 | return T; | |||
3095 | ||||
3096 | // If we are composing extended qualifiers together, merge together | |||
3097 | // into one ExtQuals node. | |||
3098 | QualifierCollector Quals; | |||
3099 | const Type *TypeNode = Quals.strip(T); | |||
3100 | ||||
3101 | // If this type already has an address space specified, it cannot get | |||
3102 | // another one. | |||
3103 | assert(!Quals.hasAddressSpace() &&(static_cast <bool> (!Quals.hasAddressSpace() && "Type cannot be in multiple addr spaces!") ? void (0) : __assert_fail ("!Quals.hasAddressSpace() && \"Type cannot be in multiple addr spaces!\"" , "clang/lib/AST/ASTContext.cpp", 3104, __extension__ __PRETTY_FUNCTION__ )) | |||
3104 | "Type cannot be in multiple addr spaces!")(static_cast <bool> (!Quals.hasAddressSpace() && "Type cannot be in multiple addr spaces!") ? void (0) : __assert_fail ("!Quals.hasAddressSpace() && \"Type cannot be in multiple addr spaces!\"" , "clang/lib/AST/ASTContext.cpp", 3104, __extension__ __PRETTY_FUNCTION__ )); | |||
3105 | Quals.addAddressSpace(AddressSpace); | |||
3106 | ||||
3107 | return getExtQualType(TypeNode, Quals); | |||
3108 | } | |||
3109 | ||||
3110 | QualType ASTContext::removeAddrSpaceQualType(QualType T) const { | |||
3111 | // If the type is not qualified with an address space, just return it | |||
3112 | // immediately. | |||
3113 | if (!T.hasAddressSpace()) | |||
3114 | return T; | |||
3115 | ||||
3116 | // If we are composing extended qualifiers together, merge together | |||
3117 | // into one ExtQuals node. | |||
3118 | QualifierCollector Quals; | |||
3119 | const Type *TypeNode; | |||
3120 | ||||
3121 | while (T.hasAddressSpace()) { | |||
3122 | TypeNode = Quals.strip(T); | |||
3123 | ||||
3124 | // If the type no longer has an address space after stripping qualifiers, | |||
3125 | // jump out. | |||
3126 | if (!QualType(TypeNode, 0).hasAddressSpace()) | |||
3127 | break; | |||
3128 | ||||
3129 | // There might be sugar in the way. Strip it and try again. | |||
3130 | T = T.getSingleStepDesugaredType(*this); | |||
3131 | } | |||
3132 | ||||
3133 | Quals.removeAddressSpace(); | |||
3134 | ||||
3135 | // Removal of the address space can mean there are no longer any | |||
3136 | // non-fast qualifiers, so creating an ExtQualType isn't possible (asserts) | |||
3137 | // or required. | |||
3138 | if (Quals.hasNonFastQualifiers()) | |||
3139 | return getExtQualType(TypeNode, Quals); | |||
| ||||
3140 | else | |||
3141 | return QualType(TypeNode, Quals.getFastQualifiers()); | |||
3142 | } | |||
3143 | ||||
3144 | QualType ASTContext::getObjCGCQualType(QualType T, | |||
3145 | Qualifiers::GC GCAttr) const { | |||
3146 | QualType CanT = getCanonicalType(T); | |||
3147 | if (CanT.getObjCGCAttr() == GCAttr) | |||
3148 | return T; | |||
3149 | ||||
3150 | if (const auto *ptr = T->getAs<PointerType>()) { | |||
3151 | QualType Pointee = ptr->getPointeeType(); | |||
3152 | if (Pointee->isAnyPointerType()) { | |||
3153 | QualType ResultType = getObjCGCQualType(Pointee, GCAttr); | |||
3154 | return getPointerType(ResultType); | |||
3155 | } | |||
3156 | } | |||
3157 | ||||
3158 | // If we are composing extended qualifiers together, merge together | |||
3159 | // into one ExtQuals node. | |||
3160 | QualifierCollector Quals; | |||
3161 | const Type *TypeNode = Quals.strip(T); | |||
3162 | ||||
3163 | // If this type already has an ObjCGC specified, it cannot get | |||
3164 | // another one. | |||
3165 | assert(!Quals.hasObjCGCAttr() &&(static_cast <bool> (!Quals.hasObjCGCAttr() && "Type cannot have multiple ObjCGCs!" ) ? void (0) : __assert_fail ("!Quals.hasObjCGCAttr() && \"Type cannot have multiple ObjCGCs!\"" , "clang/lib/AST/ASTContext.cpp", 3166, __extension__ __PRETTY_FUNCTION__ )) | |||
3166 | "Type cannot have multiple ObjCGCs!")(static_cast <bool> (!Quals.hasObjCGCAttr() && "Type cannot have multiple ObjCGCs!" ) ? void (0) : __assert_fail ("!Quals.hasObjCGCAttr() && \"Type cannot have multiple ObjCGCs!\"" , "clang/lib/AST/ASTContext.cpp", 3166, __extension__ __PRETTY_FUNCTION__ )); | |||
3167 | Quals.addObjCGCAttr(GCAttr); | |||
3168 | ||||
3169 | return getExtQualType(TypeNode, Quals); | |||
3170 | } | |||
3171 | ||||
3172 | QualType ASTContext::removePtrSizeAddrSpace(QualType T) const { | |||
3173 | if (const PointerType *Ptr = T->getAs<PointerType>()) { | |||
3174 | QualType Pointee = Ptr->getPointeeType(); | |||
3175 | if (isPtrSizeAddressSpace(Pointee.getAddressSpace())) { | |||
3176 | return getPointerType(removeAddrSpaceQualType(Pointee)); | |||
3177 | } | |||
3178 | } | |||
3179 | return T; | |||
3180 | } | |||
3181 | ||||
3182 | const FunctionType *ASTContext::adjustFunctionType(const FunctionType *T, | |||
3183 | FunctionType::ExtInfo Info) { | |||
3184 | if (T->getExtInfo() == Info) | |||
3185 | return T; | |||
3186 | ||||
3187 | QualType Result; | |||
3188 | if (const auto *FNPT = dyn_cast<FunctionNoProtoType>(T)) { | |||
3189 | Result = getFunctionNoProtoType(FNPT->getReturnType(), Info); | |||
3190 | } else { | |||
3191 | const auto *FPT = cast<FunctionProtoType>(T); | |||
3192 | FunctionProtoType::ExtProtoInfo EPI = FPT->getExtProtoInfo(); | |||
3193 | EPI.ExtInfo = Info; | |||
3194 | Result = getFunctionType(FPT->getReturnType(), FPT->getParamTypes(), EPI); | |||
3195 | } | |||
3196 | ||||
3197 | return cast<FunctionType>(Result.getTypePtr()); | |||
3198 | } | |||
3199 | ||||
3200 | void ASTContext::adjustDeducedFunctionResultType(FunctionDecl *FD, | |||
3201 | QualType ResultType) { | |||
3202 | FD = FD->getMostRecentDecl(); | |||
3203 | while (true) { | |||
3204 | const auto *FPT = FD->getType()->castAs<FunctionProtoType>(); | |||
3205 | FunctionProtoType::ExtProtoInfo EPI = FPT->getExtProtoInfo(); | |||
3206 | FD->setType(getFunctionType(ResultType, FPT->getParamTypes(), EPI)); | |||
3207 | if (FunctionDecl *Next = FD->getPreviousDecl()) | |||
3208 | FD = Next; | |||
3209 | else | |||
3210 | break; | |||
3211 | } | |||
3212 | if (ASTMutationListener *L = getASTMutationListener()) | |||
3213 | L->DeducedReturnType(FD, ResultType); | |||
3214 | } | |||
3215 | ||||
3216 | /// Get a function type and produce the equivalent function type with the | |||
3217 | /// specified exception specification. Type sugar that can be present on a | |||
3218 | /// declaration of a function with an exception specification is permitted | |||
3219 | /// and preserved. Other type sugar (for instance, typedefs) is not. | |||
3220 | QualType ASTContext::getFunctionTypeWithExceptionSpec( | |||
3221 | QualType Orig, const FunctionProtoType::ExceptionSpecInfo &ESI) const { | |||
3222 | // Might have some parens. | |||
3223 | if (const auto *PT = dyn_cast<ParenType>(Orig)) | |||
3224 | return getParenType( | |||
3225 | getFunctionTypeWithExceptionSpec(PT->getInnerType(), ESI)); | |||
3226 | ||||
3227 | // Might be wrapped in a macro qualified type. | |||
3228 | if (const auto *MQT = dyn_cast<MacroQualifiedType>(Orig)) | |||
3229 | return getMacroQualifiedType( | |||
3230 | getFunctionTypeWithExceptionSpec(MQT->getUnderlyingType(), ESI), | |||
3231 | MQT->getMacroIdentifier()); | |||
3232 | ||||
3233 | // Might have a calling-convention attribute. | |||
3234 | if (const auto *AT = dyn_cast<AttributedType>(Orig)) | |||
3235 | return getAttributedType( | |||
3236 | AT->getAttrKind(), | |||
3237 | getFunctionTypeWithExceptionSpec(AT->getModifiedType(), ESI), | |||
3238 | getFunctionTypeWithExceptionSpec(AT->getEquivalentType(), ESI)); | |||
3239 | ||||
3240 | // Anything else must be a function type. Rebuild it with the new exception | |||
3241 | // specification. | |||
3242 | const auto *Proto = Orig->castAs<FunctionProtoType>(); | |||
3243 | return getFunctionType( | |||
3244 | Proto->getReturnType(), Proto->getParamTypes(), | |||
3245 | Proto->getExtProtoInfo().withExceptionSpec(ESI)); | |||
3246 | } | |||
3247 | ||||
3248 | bool ASTContext::hasSameFunctionTypeIgnoringExceptionSpec(QualType T, | |||
3249 | QualType U) const { | |||
3250 | return hasSameType(T, U) || | |||
3251 | (getLangOpts().CPlusPlus17 && | |||
3252 | hasSameType(getFunctionTypeWithExceptionSpec(T, EST_None), | |||
3253 | getFunctionTypeWithExceptionSpec(U, EST_None))); | |||
3254 | } | |||
3255 | ||||
3256 | QualType ASTContext::getFunctionTypeWithoutPtrSizes(QualType T) { | |||
3257 | if (const auto *Proto = T->getAs<FunctionProtoType>()) { | |||
3258 | QualType RetTy = removePtrSizeAddrSpace(Proto->getReturnType()); | |||
3259 | SmallVector<QualType, 16> Args(Proto->param_types().size()); | |||
3260 | for (unsigned i = 0, n = Args.size(); i != n; ++i) | |||
3261 | Args[i] = removePtrSizeAddrSpace(Proto->param_types()[i]); | |||
3262 | return getFunctionType(RetTy, Args, Proto->getExtProtoInfo()); | |||
3263 | } | |||
3264 | ||||
3265 | if (const FunctionNoProtoType *Proto = T->getAs<FunctionNoProtoType>()) { | |||
3266 | QualType RetTy = removePtrSizeAddrSpace(Proto->getReturnType()); | |||
3267 | return getFunctionNoProtoType(RetTy, Proto->getExtInfo()); | |||
3268 | } | |||
3269 | ||||
3270 | return T; | |||
3271 | } | |||
3272 | ||||
3273 | bool ASTContext::hasSameFunctionTypeIgnoringPtrSizes(QualType T, QualType U) { | |||
3274 | return hasSameType(T, U) || | |||
| ||||
3275 | hasSameType(getFunctionTypeWithoutPtrSizes(T), | |||
3276 | getFunctionTypeWithoutPtrSizes(U)); | |||
3277 | } | |||
3278 | ||||
3279 | void ASTContext::adjustExceptionSpec( | |||
3280 | FunctionDecl *FD, const FunctionProtoType::ExceptionSpecInfo &ESI, | |||
3281 | bool AsWritten) { | |||
3282 | // Update the type. | |||
3283 | QualType Updated = | |||
3284 | getFunctionTypeWithExceptionSpec(FD->getType(), ESI); | |||
3285 | FD->setType(Updated); | |||
3286 | ||||
3287 | if (!AsWritten) | |||
3288 | return; | |||
3289 | ||||
3290 | // Update the type in the type source information too. | |||
3291 | if (TypeSourceInfo *TSInfo = FD->getTypeSourceInfo()) { | |||
3292 | // If the type and the type-as-written differ, we may need to update | |||
3293 | // the type-as-written too. | |||
3294 | if (TSInfo->getType() != FD->getType()) | |||
3295 | Updated = getFunctionTypeWithExceptionSpec(TSInfo->getType(), ESI); | |||
3296 | ||||
3297 | // FIXME: When we get proper type location information for exceptions, | |||
3298 | // we'll also have to rebuild the TypeSourceInfo. For now, we just patch | |||
3299 | // up the TypeSourceInfo; | |||
3300 | assert(TypeLoc::getFullDataSizeForType(Updated) ==(static_cast <bool> (TypeLoc::getFullDataSizeForType(Updated ) == TypeLoc::getFullDataSizeForType(TSInfo->getType()) && "TypeLoc size mismatch from updating exception specification" ) ? void (0) : __assert_fail ("TypeLoc::getFullDataSizeForType(Updated) == TypeLoc::getFullDataSizeForType(TSInfo->getType()) && \"TypeLoc size mismatch from updating exception specification\"" , "clang/lib/AST/ASTContext.cpp", 3302, __extension__ __PRETTY_FUNCTION__ )) | |||
3301 | TypeLoc::getFullDataSizeForType(TSInfo->getType()) &&(static_cast <bool> (TypeLoc::getFullDataSizeForType(Updated ) == TypeLoc::getFullDataSizeForType(TSInfo->getType()) && "TypeLoc size mismatch from updating exception specification" ) ? void (0) : __assert_fail ("TypeLoc::getFullDataSizeForType(Updated) == TypeLoc::getFullDataSizeForType(TSInfo->getType()) && \"TypeLoc size mismatch from updating exception specification\"" , "clang/lib/AST/ASTContext.cpp", 3302, __extension__ __PRETTY_FUNCTION__ )) | |||
3302 | "TypeLoc size mismatch from updating exception specification")(static_cast <bool> (TypeLoc::getFullDataSizeForType(Updated ) == TypeLoc::getFullDataSizeForType(TSInfo->getType()) && "TypeLoc size mismatch from updating exception specification" ) ? void (0) : __assert_fail ("TypeLoc::getFullDataSizeForType(Updated) == TypeLoc::getFullDataSizeForType(TSInfo->getType()) && \"TypeLoc size mismatch from updating exception specification\"" , "clang/lib/AST/ASTContext.cpp", 3302, __extension__ __PRETTY_FUNCTION__ )); | |||
3303 | TSInfo->overrideType(Updated); | |||
3304 | } | |||
3305 | } | |||
3306 | ||||
3307 | /// getComplexType - Return the uniqued reference to the type for a complex | |||
3308 | /// number with the specified element type. | |||
3309 | QualType ASTContext::getComplexType(QualType T) const { | |||
3310 | // Unique pointers, to guarantee there is only one pointer of a particular | |||
3311 | // structure. | |||
3312 | llvm::FoldingSetNodeID ID; | |||
3313 | ComplexType::Profile(ID, T); | |||
3314 | ||||
3315 | void *InsertPos = nullptr; | |||
3316 | if (ComplexType *CT = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
3317 | return QualType(CT, 0); | |||
3318 | ||||
3319 | // If the pointee type isn't canonical, this won't be a canonical type either, | |||
3320 | // so fill in the canonical type field. | |||
3321 | QualType Canonical; | |||
3322 | if (!T.isCanonical()) { | |||
3323 | Canonical = getComplexType(getCanonicalType(T)); | |||
3324 | ||||
3325 | // Get the new insert position for the node we care about. | |||
3326 | ComplexType *NewIP = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
3327 | assert(!NewIP && "Shouldn't be in the map!")(static_cast <bool> (!NewIP && "Shouldn't be in the map!" ) ? void (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\"" , "clang/lib/AST/ASTContext.cpp", 3327, __extension__ __PRETTY_FUNCTION__ )); (void)NewIP; | |||
3328 | } | |||
3329 | auto *New = new (*this, TypeAlignment) ComplexType(T, Canonical); | |||
3330 | Types.push_back(New); | |||
3331 | ComplexTypes.InsertNode(New, InsertPos); | |||
3332 | return QualType(New, 0); | |||
3333 | } | |||
3334 | ||||
3335 | /// getPointerType - Return the uniqued reference to the type for a pointer to | |||
3336 | /// the specified type. | |||
3337 | QualType ASTContext::getPointerType(QualType T) const { | |||
3338 | // Unique pointers, to guarantee there is only one pointer of a particular | |||
3339 | // structure. | |||
3340 | llvm::FoldingSetNodeID ID; | |||
3341 | PointerType::Profile(ID, T); | |||
3342 | ||||
3343 | void *InsertPos = nullptr; | |||
3344 | if (PointerType *PT = PointerTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
3345 | return QualType(PT, 0); | |||
3346 | ||||
3347 | // If the pointee type isn't canonical, this won't be a canonical type either, | |||
3348 | // so fill in the canonical type field. | |||
3349 | QualType Canonical; | |||
3350 | if (!T.isCanonical()) { | |||
3351 | Canonical = getPointerType(getCanonicalType(T)); | |||
3352 | ||||
3353 | // Get the new insert position for the node we care about. | |||
3354 | PointerType *NewIP = PointerTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
3355 | assert(!NewIP && "Shouldn't be in the map!")(static_cast <bool> (!NewIP && "Shouldn't be in the map!" ) ? void (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\"" , "clang/lib/AST/ASTContext.cpp", 3355, __extension__ __PRETTY_FUNCTION__ )); (void)NewIP; | |||
3356 | } | |||
3357 | auto *New = new (*this, TypeAlignment) PointerType(T, Canonical); | |||
3358 | Types.push_back(New); | |||
3359 | PointerTypes.InsertNode(New, InsertPos); | |||
3360 | return QualType(New, 0); | |||
3361 | } | |||
3362 | ||||
3363 | QualType ASTContext::getAdjustedType(QualType Orig, QualType New) const { | |||
3364 | llvm::FoldingSetNodeID ID; | |||
3365 | AdjustedType::Profile(ID, Orig, New); | |||
3366 | void *InsertPos = nullptr; | |||
3367 | AdjustedType *AT = AdjustedTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
3368 | if (AT) | |||
3369 | return QualType(AT, 0); | |||
3370 | ||||
3371 | QualType Canonical = getCanonicalType(New); | |||
3372 | ||||
3373 | // Get the new insert position for the node we care about. | |||
3374 | AT = AdjustedTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
3375 | assert(!AT && "Shouldn't be in the map!")(static_cast <bool> (!AT && "Shouldn't be in the map!" ) ? void (0) : __assert_fail ("!AT && \"Shouldn't be in the map!\"" , "clang/lib/AST/ASTContext.cpp", 3375, __extension__ __PRETTY_FUNCTION__ )); | |||
3376 | ||||
3377 | AT = new (*this, TypeAlignment) | |||
3378 | AdjustedType(Type::Adjusted, Orig, New, Canonical); | |||
3379 | Types.push_back(AT); | |||
3380 | AdjustedTypes.InsertNode(AT, InsertPos); | |||
3381 | return QualType(AT, 0); | |||
3382 | } | |||
3383 | ||||
3384 | QualType ASTContext::getDecayedType(QualType Orig, QualType Decayed) const { | |||
3385 | llvm::FoldingSetNodeID ID; | |||
3386 | AdjustedType::Profile(ID, Orig, Decayed); | |||
3387 | void *InsertPos = nullptr; | |||
3388 | AdjustedType *AT = AdjustedTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
3389 | if (AT) | |||
3390 | return QualType(AT, 0); | |||
3391 | ||||
3392 | QualType Canonical = getCanonicalType(Decayed); | |||
3393 | ||||
3394 | // Get the new insert position for the node we care about. | |||
3395 | AT = AdjustedTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
3396 | assert(!AT && "Shouldn't be in the map!")(static_cast <bool> (!AT && "Shouldn't be in the map!" ) ? void (0) : __assert_fail ("!AT && \"Shouldn't be in the map!\"" , "clang/lib/AST/ASTContext.cpp", 3396, __extension__ __PRETTY_FUNCTION__ )); | |||
3397 | ||||
3398 | AT = new (*this, TypeAlignment) DecayedType(Orig, Decayed, Canonical); | |||
3399 | Types.push_back(AT); | |||
3400 | AdjustedTypes.InsertNode(AT, InsertPos); | |||
3401 | return QualType(AT, 0); | |||
3402 | } | |||
3403 | ||||
3404 | QualType ASTContext::getDecayedType(QualType T) const { | |||
3405 | assert((T->isArrayType() || T->isFunctionType()) && "T does not decay")(static_cast <bool> ((T->isArrayType() || T->isFunctionType ()) && "T does not decay") ? void (0) : __assert_fail ("(T->isArrayType() || T->isFunctionType()) && \"T does not decay\"" , "clang/lib/AST/ASTContext.cpp", 3405, __extension__ __PRETTY_FUNCTION__ )); | |||
3406 | ||||
3407 | QualType Decayed; | |||
3408 | ||||
3409 | // C99 6.7.5.3p7: | |||
3410 | // A declaration of a parameter as "array of type" shall be | |||
3411 | // adjusted to "qualified pointer to type", where the type | |||
3412 | // qualifiers (if any) are those specified within the [ and ] of | |||
3413 | // the array type derivation. | |||
3414 | if (T->isArrayType()) | |||
3415 | Decayed = getArrayDecayedType(T); | |||
3416 | ||||
3417 | // C99 6.7.5.3p8: | |||
3418 | // A declaration of a parameter as "function returning type" | |||
3419 | // shall be adjusted to "pointer to function returning type", as | |||
3420 | // in 6.3.2.1. | |||
3421 | if (T->isFunctionType()) | |||
3422 | Decayed = getPointerType(T); | |||
3423 | ||||
3424 | return getDecayedType(T, Decayed); | |||
3425 | } | |||
3426 | ||||
3427 | /// getBlockPointerType - Return the uniqued reference to the type for | |||
3428 | /// a pointer to the specified block. | |||
3429 | QualType ASTContext::getBlockPointerType(QualType T) const { | |||
3430 | assert(T->isFunctionType() && "block of function types only")(static_cast <bool> (T->isFunctionType() && "block of function types only" ) ? void (0) : __assert_fail ("T->isFunctionType() && \"block of function types only\"" , "clang/lib/AST/ASTContext.cpp", 3430, __extension__ __PRETTY_FUNCTION__ )); | |||
3431 | // Unique pointers, to guarantee there is only one block of a particular | |||
3432 | // structure. | |||
3433 | llvm::FoldingSetNodeID ID; | |||
3434 | BlockPointerType::Profile(ID, T); | |||
3435 | ||||
3436 | void *InsertPos = nullptr; | |||
3437 | if (BlockPointerType *PT = | |||
3438 | BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
3439 | return QualType(PT, 0); | |||
3440 | ||||
3441 | // If the block pointee type isn't canonical, this won't be a canonical | |||
3442 | // type either so fill in the canonical type field. | |||
3443 | QualType Canonical; | |||
3444 | if (!T.isCanonical()) { | |||
3445 | Canonical = getBlockPointerType(getCanonicalType(T)); | |||
3446 | ||||
3447 | // Get the new insert position for the node we care about. | |||
3448 | BlockPointerType *NewIP = | |||
3449 | BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
3450 | assert(!NewIP && "Shouldn't be in the map!")(static_cast <bool> (!NewIP && "Shouldn't be in the map!" ) ? void (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\"" , "clang/lib/AST/ASTContext.cpp", 3450, __extension__ __PRETTY_FUNCTION__ )); (void)NewIP; | |||
3451 | } | |||
3452 | auto *New = new (*this, TypeAlignment) BlockPointerType(T, Canonical); | |||
3453 | Types.push_back(New); | |||
3454 | BlockPointerTypes.InsertNode(New, InsertPos); | |||
3455 | return QualType(New, 0); | |||
3456 | } | |||
3457 | ||||
3458 | /// getLValueReferenceType - Return the uniqued reference to the type for an | |||
3459 | /// lvalue reference to the specified type. | |||
3460 | QualType | |||
3461 | ASTContext::getLValueReferenceType(QualType T, bool SpelledAsLValue) const { | |||
3462 | assert((!T->isPlaceholderType() ||(static_cast <bool> ((!T->isPlaceholderType() || T-> isSpecificPlaceholderType(BuiltinType::UnknownAny)) && "Unresolved placeholder type") ? void (0) : __assert_fail ("(!T->isPlaceholderType() || T->isSpecificPlaceholderType(BuiltinType::UnknownAny)) && \"Unresolved placeholder type\"" , "clang/lib/AST/ASTContext.cpp", 3464, __extension__ __PRETTY_FUNCTION__ )) | |||
3463 | T->isSpecificPlaceholderType(BuiltinType::UnknownAny)) &&(static_cast <bool> ((!T->isPlaceholderType() || T-> isSpecificPlaceholderType(BuiltinType::UnknownAny)) && "Unresolved placeholder type") ? void (0) : __assert_fail ("(!T->isPlaceholderType() || T->isSpecificPlaceholderType(BuiltinType::UnknownAny)) && \"Unresolved placeholder type\"" , "clang/lib/AST/ASTContext.cpp", 3464, __extension__ __PRETTY_FUNCTION__ )) | |||
3464 | "Unresolved placeholder type")(static_cast <bool> ((!T->isPlaceholderType() || T-> isSpecificPlaceholderType(BuiltinType::UnknownAny)) && "Unresolved placeholder type") ? void (0) : __assert_fail ("(!T->isPlaceholderType() || T->isSpecificPlaceholderType(BuiltinType::UnknownAny)) && \"Unresolved placeholder type\"" , "clang/lib/AST/ASTContext.cpp", 3464, __extension__ __PRETTY_FUNCTION__ )); | |||
3465 | ||||
3466 | // Unique pointers, to guarantee there is only one pointer of a particular | |||
3467 | // structure. | |||
3468 | llvm::FoldingSetNodeID ID; | |||
3469 | ReferenceType::Profile(ID, T, SpelledAsLValue); | |||
3470 | ||||
3471 | void *InsertPos = nullptr; | |||
3472 | if (LValueReferenceType *RT = | |||
3473 | LValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
3474 | return QualType(RT, 0); | |||
3475 | ||||
3476 | const auto *InnerRef = T->getAs<ReferenceType>(); | |||
3477 | ||||
3478 | // If the referencee type isn't canonical, this won't be a canonical type | |||
3479 | // either, so fill in the canonical type field. | |||
3480 | QualType Canonical; | |||
3481 | if (!SpelledAsLValue || InnerRef || !T.isCanonical()) { | |||
3482 | QualType PointeeType = (InnerRef ? InnerRef->getPointeeType() : T); | |||
3483 | Canonical = getLValueReferenceType(getCanonicalType(PointeeType)); | |||
3484 | ||||
3485 | // Get the new insert position for the node we care about. | |||
3486 | LValueReferenceType *NewIP = | |||
3487 | LValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
3488 | assert(!NewIP && "Shouldn't be in the map!")(static_cast <bool> (!NewIP && "Shouldn't be in the map!" ) ? void (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\"" , "clang/lib/AST/ASTContext.cpp", 3488, __extension__ __PRETTY_FUNCTION__ )); (void)NewIP; | |||
3489 | } | |||
3490 | ||||
3491 | auto *New = new (*this, TypeAlignment) LValueReferenceType(T, Canonical, | |||
3492 | SpelledAsLValue); | |||
3493 | Types.push_back(New); | |||
3494 | LValueReferenceTypes.InsertNode(New, InsertPos); | |||
3495 | ||||
3496 | return QualType(New, 0); | |||
3497 | } | |||
3498 | ||||
3499 | /// getRValueReferenceType - Return the uniqued reference to the type for an | |||
3500 | /// rvalue reference to the specified type. | |||
3501 | QualType ASTContext::getRValueReferenceType(QualType T) const { | |||
3502 | assert((!T->isPlaceholderType() ||(static_cast <bool> ((!T->isPlaceholderType() || T-> isSpecificPlaceholderType(BuiltinType::UnknownAny)) && "Unresolved placeholder type") ? void (0) : __assert_fail ("(!T->isPlaceholderType() || T->isSpecificPlaceholderType(BuiltinType::UnknownAny)) && \"Unresolved placeholder type\"" , "clang/lib/AST/ASTContext.cpp", 3504, __extension__ __PRETTY_FUNCTION__ )) | |||
3503 | T->isSpecificPlaceholderType(BuiltinType::UnknownAny)) &&(static_cast <bool> ((!T->isPlaceholderType() || T-> isSpecificPlaceholderType(BuiltinType::UnknownAny)) && "Unresolved placeholder type") ? void (0) : __assert_fail ("(!T->isPlaceholderType() || T->isSpecificPlaceholderType(BuiltinType::UnknownAny)) && \"Unresolved placeholder type\"" , "clang/lib/AST/ASTContext.cpp", 3504, __extension__ __PRETTY_FUNCTION__ )) | |||
3504 | "Unresolved placeholder type")(static_cast <bool> ((!T->isPlaceholderType() || T-> isSpecificPlaceholderType(BuiltinType::UnknownAny)) && "Unresolved placeholder type") ? void (0) : __assert_fail ("(!T->isPlaceholderType() || T->isSpecificPlaceholderType(BuiltinType::UnknownAny)) && \"Unresolved placeholder type\"" , "clang/lib/AST/ASTContext.cpp", 3504, __extension__ __PRETTY_FUNCTION__ )); | |||
3505 | ||||
3506 | // Unique pointers, to guarantee there is only one pointer of a particular | |||
3507 | // structure. | |||
3508 | llvm::FoldingSetNodeID ID; | |||
3509 | ReferenceType::Profile(ID, T, false); | |||
3510 | ||||
3511 | void *InsertPos = nullptr; | |||
3512 | if (RValueReferenceType *RT = | |||
3513 | RValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
3514 | return QualType(RT, 0); | |||
3515 | ||||
3516 | const auto *InnerRef = T->getAs<ReferenceType>(); | |||
3517 | ||||
3518 | // If the referencee type isn't canonical, this won't be a canonical type | |||
3519 | // either, so fill in the canonical type field. | |||
3520 | QualType Canonical; | |||
3521 | if (InnerRef || !T.isCanonical()) { | |||
3522 | QualType PointeeType = (InnerRef ? InnerRef->getPointeeType() : T); | |||
3523 | Canonical = getRValueReferenceType(getCanonicalType(PointeeType)); | |||
3524 | ||||
3525 | // Get the new insert position for the node we care about. | |||
3526 | RValueReferenceType *NewIP = | |||
3527 | RValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
3528 | assert(!NewIP && "Shouldn't be in the map!")(static_cast <bool> (!NewIP && "Shouldn't be in the map!" ) ? void (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\"" , "clang/lib/AST/ASTContext.cpp", 3528, __extension__ __PRETTY_FUNCTION__ )); (void)NewIP; | |||
3529 | } | |||
3530 | ||||
3531 | auto *New = new (*this, TypeAlignment) RValueReferenceType(T, Canonical); | |||
3532 | Types.push_back(New); | |||
3533 | RValueReferenceTypes.InsertNode(New, InsertPos); | |||
3534 | return QualType(New, 0); | |||
3535 | } | |||
3536 | ||||
3537 | /// getMemberPointerType - Return the uniqued reference to the type for a | |||
3538 | /// member pointer to the specified type, in the specified class. | |||
3539 | QualType ASTContext::getMemberPointerType(QualType T, const Type *Cls) const { | |||
3540 | // Unique pointers, to guarantee there is only one pointer of a particular | |||
3541 | // structure. | |||
3542 | llvm::FoldingSetNodeID ID; | |||
3543 | MemberPointerType::Profile(ID, T, Cls); | |||
3544 | ||||
3545 | void *InsertPos = nullptr; | |||
3546 | if (MemberPointerType *PT = | |||
3547 | MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
3548 | return QualType(PT, 0); | |||
3549 | ||||
3550 | // If the pointee or class type isn't canonical, this won't be a canonical | |||
3551 | // type either, so fill in the canonical type field. | |||
3552 | QualType Canonical; | |||
3553 | if (!T.isCanonical() || !Cls->isCanonicalUnqualified()) { | |||
3554 | Canonical = getMemberPointerType(getCanonicalType(T),getCanonicalType(Cls)); | |||
3555 | ||||
3556 | // Get the new insert position for the node we care about. | |||
3557 | MemberPointerType *NewIP = | |||
3558 | MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
3559 | assert(!NewIP && "Shouldn't be in the map!")(static_cast <bool> (!NewIP && "Shouldn't be in the map!" ) ? void (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\"" , "clang/lib/AST/ASTContext.cpp", 3559, __extension__ __PRETTY_FUNCTION__ )); (void)NewIP; | |||
3560 | } | |||
3561 | auto *New = new (*this, TypeAlignment) MemberPointerType(T, Cls, Canonical); | |||
3562 | Types.push_back(New); | |||
3563 | MemberPointerTypes.InsertNode(New, InsertPos); | |||
3564 | return QualType(New, 0); | |||
3565 | } | |||
3566 | ||||
3567 | /// getConstantArrayType - Return the unique reference to the type for an | |||
3568 | /// array of the specified element type. | |||
3569 | QualType ASTContext::getConstantArrayType(QualType EltTy, | |||
3570 | const llvm::APInt &ArySizeIn, | |||
3571 | const Expr *SizeExpr, | |||
3572 | ArrayType::ArraySizeModifier ASM, | |||
3573 | unsigned IndexTypeQuals) const { | |||
3574 | assert((EltTy->isDependentType() ||(static_cast <bool> ((EltTy->isDependentType() || EltTy ->isIncompleteType() || EltTy->isConstantSizeType()) && "Constant array of VLAs is illegal!") ? void (0) : __assert_fail ("(EltTy->isDependentType() || EltTy->isIncompleteType() || EltTy->isConstantSizeType()) && \"Constant array of VLAs is illegal!\"" , "clang/lib/AST/ASTContext.cpp", 3576, __extension__ __PRETTY_FUNCTION__ )) | |||
3575 | EltTy->isIncompleteType() || EltTy->isConstantSizeType()) &&(static_cast <bool> ((EltTy->isDependentType() || EltTy ->isIncompleteType() || EltTy->isConstantSizeType()) && "Constant array of VLAs is illegal!") ? void (0) : __assert_fail ("(EltTy->isDependentType() || EltTy->isIncompleteType() || EltTy->isConstantSizeType()) && \"Constant array of VLAs is illegal!\"" , "clang/lib/AST/ASTContext.cpp", 3576, __extension__ __PRETTY_FUNCTION__ )) | |||
3576 | "Constant array of VLAs is illegal!")(static_cast <bool> ((EltTy->isDependentType() || EltTy ->isIncompleteType() || EltTy->isConstantSizeType()) && "Constant array of VLAs is illegal!") ? void (0) : __assert_fail ("(EltTy->isDependentType() || EltTy->isIncompleteType() || EltTy->isConstantSizeType()) && \"Constant array of VLAs is illegal!\"" , "clang/lib/AST/ASTContext.cpp", 3576, __extension__ __PRETTY_FUNCTION__ )); | |||
3577 | ||||
3578 | // We only need the size as part of the type if it's instantiation-dependent. | |||
3579 | if (SizeExpr && !SizeExpr->isInstantiationDependent()) | |||
3580 | SizeExpr = nullptr; | |||
3581 | ||||
3582 | // Convert the array size into a canonical width matching the pointer size for | |||
3583 | // the target. | |||
3584 | llvm::APInt ArySize(ArySizeIn); | |||
3585 | ArySize = ArySize.zextOrTrunc(Target->getMaxPointerWidth()); | |||
3586 | ||||
3587 | llvm::FoldingSetNodeID ID; | |||
3588 | ConstantArrayType::Profile(ID, *this, EltTy, ArySize, SizeExpr, ASM, | |||
3589 | IndexTypeQuals); | |||
3590 | ||||
3591 | void *InsertPos = nullptr; | |||
3592 | if (ConstantArrayType *ATP = | |||
3593 | ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
3594 | return QualType(ATP, 0); | |||
3595 | ||||
3596 | // If the element type isn't canonical or has qualifiers, or the array bound | |||
3597 | // is instantiation-dependent, this won't be a canonical type either, so fill | |||
3598 | // in the canonical type field. | |||
3599 | QualType Canon; | |||
3600 | // FIXME: Check below should look for qualifiers behind sugar. | |||
3601 | if (!EltTy.isCanonical() || EltTy.hasLocalQualifiers() || SizeExpr) { | |||
3602 | SplitQualType canonSplit = getCanonicalType(EltTy).split(); | |||
3603 | Canon = getConstantArrayType(QualType(canonSplit.Ty, 0), ArySize, nullptr, | |||
3604 | ASM, IndexTypeQuals); | |||
3605 | Canon = getQualifiedType(Canon, canonSplit.Quals); | |||
3606 | ||||
3607 | // Get the new insert position for the node we care about. | |||
3608 | ConstantArrayType *NewIP = | |||
3609 | ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
3610 | assert(!NewIP && "Shouldn't be in the map!")(static_cast <bool> (!NewIP && "Shouldn't be in the map!" ) ? void (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\"" , "clang/lib/AST/ASTContext.cpp", 3610, __extension__ __PRETTY_FUNCTION__ )); (void)NewIP; | |||
3611 | } | |||
3612 | ||||
3613 | void *Mem = Allocate( | |||
3614 | ConstantArrayType::totalSizeToAlloc<const Expr *>(SizeExpr ? 1 : 0), | |||
3615 | TypeAlignment); | |||
3616 | auto *New = new (Mem) | |||
3617 | ConstantArrayType(EltTy, Canon, ArySize, SizeExpr, ASM, IndexTypeQuals); | |||
3618 | ConstantArrayTypes.InsertNode(New, InsertPos); | |||
3619 | Types.push_back(New); | |||
3620 | return QualType(New, 0); | |||
3621 | } | |||
3622 | ||||
3623 | /// getVariableArrayDecayedType - Turns the given type, which may be | |||
3624 | /// variably-modified, into the corresponding type with all the known | |||
3625 | /// sizes replaced with [*]. | |||
3626 | QualType ASTContext::getVariableArrayDecayedType(QualType type) const { | |||
3627 | // Vastly most common case. | |||
3628 | if (!type->isVariablyModifiedType()) return type; | |||
3629 | ||||
3630 | QualType result; | |||
3631 | ||||
3632 | SplitQualType split = type.getSplitDesugaredType(); | |||
3633 | const Type *ty = split.Ty; | |||
3634 | switch (ty->getTypeClass()) { | |||
3635 | #define TYPE(Class, Base) | |||
3636 | #define ABSTRACT_TYPE(Class, Base) | |||
3637 | #define NON_CANONICAL_TYPE(Class, Base) case Type::Class: | |||
3638 | #include "clang/AST/TypeNodes.inc" | |||
3639 | llvm_unreachable("didn't desugar past all non-canonical types?")::llvm::llvm_unreachable_internal("didn't desugar past all non-canonical types?" , "clang/lib/AST/ASTContext.cpp", 3639); | |||
3640 | ||||
3641 | // These types should never be variably-modified. | |||
3642 | case Type::Builtin: | |||
3643 | case Type::Complex: | |||
3644 | case Type::Vector: | |||
3645 | case Type::DependentVector: | |||
3646 | case Type::ExtVector: | |||
3647 | case Type::DependentSizedExtVector: | |||
3648 | case Type::ConstantMatrix: | |||
3649 | case Type::DependentSizedMatrix: | |||
3650 | case Type::DependentAddressSpace: | |||
3651 | case Type::ObjCObject: | |||
3652 | case Type::ObjCInterface: | |||
3653 | case Type::ObjCObjectPointer: | |||
3654 | case Type::Record: | |||
3655 | case Type::Enum: | |||
3656 | case Type::UnresolvedUsing: | |||
3657 | case Type::TypeOfExpr: | |||
3658 | case Type::TypeOf: | |||
3659 | case Type::Decltype: | |||
3660 | case Type::UnaryTransform: | |||
3661 | case Type::DependentName: | |||
3662 | case Type::InjectedClassName: | |||
3663 | case Type::TemplateSpecialization: | |||
3664 | case Type::DependentTemplateSpecialization: | |||
3665 | case Type::TemplateTypeParm: | |||
3666 | case Type::SubstTemplateTypeParmPack: | |||
3667 | case Type::Auto: | |||
3668 | case Type::DeducedTemplateSpecialization: | |||
3669 | case Type::PackExpansion: | |||
3670 | case Type::BitInt: | |||
3671 | case Type::DependentBitInt: | |||
3672 | llvm_unreachable("type should never be variably-modified")::llvm::llvm_unreachable_internal("type should never be variably-modified" , "clang/lib/AST/ASTContext.cpp", 3672); | |||
3673 | ||||
3674 | // These types can be variably-modified but should never need to | |||
3675 | // further decay. | |||
3676 | case Type::FunctionNoProto: | |||
3677 | case Type::FunctionProto: | |||
3678 | case Type::BlockPointer: | |||
3679 | case Type::MemberPointer: | |||
3680 | case Type::Pipe: | |||
3681 | return type; | |||
3682 | ||||
3683 | // These types can be variably-modified. All these modifications | |||
3684 | // preserve structure except as noted by comments. | |||
3685 | // TODO: if we ever care about optimizing VLAs, there are no-op | |||
3686 | // optimizations available here. | |||
3687 | case Type::Pointer: | |||
3688 | result = getPointerType(getVariableArrayDecayedType( | |||
3689 | cast<PointerType>(ty)->getPointeeType())); | |||
3690 | break; | |||
3691 | ||||
3692 | case Type::LValueReference: { | |||
3693 | const auto *lv = cast<LValueReferenceType>(ty); | |||
3694 | result = getLValueReferenceType( | |||
3695 | getVariableArrayDecayedType(lv->getPointeeType()), | |||
3696 | lv->isSpelledAsLValue()); | |||
3697 | break; | |||
3698 | } | |||
3699 | ||||
3700 | case Type::RValueReference: { | |||
3701 | const auto *lv = cast<RValueReferenceType>(ty); | |||
3702 | result = getRValueReferenceType( | |||
3703 | getVariableArrayDecayedType(lv->getPointeeType())); | |||
3704 | break; | |||
3705 | } | |||
3706 | ||||
3707 | case Type::Atomic: { | |||
3708 | const auto *at = cast<AtomicType>(ty); | |||
3709 | result = getAtomicType(getVariableArrayDecayedType(at->getValueType())); | |||
3710 | break; | |||
3711 | } | |||
3712 | ||||
3713 | case Type::ConstantArray: { | |||
3714 | const auto *cat = cast<ConstantArrayType>(ty); | |||
3715 | result = getConstantArrayType( | |||
3716 | getVariableArrayDecayedType(cat->getElementType()), | |||
3717 | cat->getSize(), | |||
3718 | cat->getSizeExpr(), | |||
3719 | cat->getSizeModifier(), | |||
3720 | cat->getIndexTypeCVRQualifiers()); | |||
3721 | break; | |||
3722 | } | |||
3723 | ||||
3724 | case Type::DependentSizedArray: { | |||
3725 | const auto *dat = cast<DependentSizedArrayType>(ty); | |||
3726 | result = getDependentSizedArrayType( | |||
3727 | getVariableArrayDecayedType(dat->getElementType()), | |||
3728 | dat->getSizeExpr(), | |||
3729 | dat->getSizeModifier(), | |||
3730 | dat->getIndexTypeCVRQualifiers(), | |||
3731 | dat->getBracketsRange()); | |||
3732 | break; | |||
3733 | } | |||
3734 | ||||
3735 | // Turn incomplete types into [*] types. | |||
3736 | case Type::IncompleteArray: { | |||
3737 | const auto *iat = cast<IncompleteArrayType>(ty); | |||
3738 | result = getVariableArrayType( | |||
3739 | getVariableArrayDecayedType(iat->getElementType()), | |||
3740 | /*size*/ nullptr, | |||
3741 | ArrayType::Normal, | |||
3742 | iat->getIndexTypeCVRQualifiers(), | |||
3743 | SourceRange()); | |||
3744 | break; | |||
3745 | } | |||
3746 | ||||
3747 | // Turn VLA types into [*] types. | |||
3748 | case Type::VariableArray: { | |||
3749 | const auto *vat = cast<VariableArrayType>(ty); | |||
3750 | result = getVariableArrayType( | |||
3751 | getVariableArrayDecayedType(vat->getElementType()), | |||
3752 | /*size*/ nullptr, | |||
3753 | ArrayType::Star, | |||
3754 | vat->getIndexTypeCVRQualifiers(), | |||
3755 | vat->getBracketsRange()); | |||
3756 | break; | |||
3757 | } | |||
3758 | } | |||
3759 | ||||
3760 | // Apply the top-level qualifiers from the original. | |||
3761 | return getQualifiedType(result, split.Quals); | |||
3762 | } | |||
3763 | ||||
3764 | /// getVariableArrayType - Returns a non-unique reference to the type for a | |||
3765 | /// variable array of the specified element type. | |||
3766 | QualType ASTContext::getVariableArrayType(QualType EltTy, | |||
3767 | Expr *NumElts, | |||
3768 | ArrayType::ArraySizeModifier ASM, | |||
3769 | unsigned IndexTypeQuals, | |||
3770 | SourceRange Brackets) const { | |||
3771 | // Since we don't unique expressions, it isn't possible to unique VLA's | |||
3772 | // that have an expression provided for their size. | |||
3773 | QualType Canon; | |||
3774 | ||||
3775 | // Be sure to pull qualifiers off the element type. | |||
3776 | // FIXME: Check below should look for qualifiers behind sugar. | |||
3777 | if (!EltTy.isCanonical() || EltTy.hasLocalQualifiers()) { | |||
3778 | SplitQualType canonSplit = getCanonicalType(EltTy).split(); | |||
3779 | Canon = getVariableArrayType(QualType(canonSplit.Ty, 0), NumElts, ASM, | |||
3780 | IndexTypeQuals, Brackets); | |||
3781 | Canon = getQualifiedType(Canon, canonSplit.Quals); | |||
3782 | } | |||
3783 | ||||
3784 | auto *New = new (*this, TypeAlignment) | |||
3785 | VariableArrayType(EltTy, Canon, NumElts, ASM, IndexTypeQuals, Brackets); | |||
3786 | ||||
3787 | VariableArrayTypes.push_back(New); | |||
3788 | Types.push_back(New); | |||
3789 | return QualType(New, 0); | |||
3790 | } | |||
3791 | ||||
3792 | /// getDependentSizedArrayType - Returns a non-unique reference to | |||
3793 | /// the type for a dependently-sized array of the specified element | |||
3794 | /// type. | |||
3795 | QualType ASTContext::getDependentSizedArrayType(QualType elementType, | |||
3796 | Expr *numElements, | |||
3797 | ArrayType::ArraySizeModifier ASM, | |||
3798 | unsigned elementTypeQuals, | |||
3799 | SourceRange brackets) const { | |||
3800 | assert((!numElements || numElements->isTypeDependent() ||(static_cast <bool> ((!numElements || numElements->isTypeDependent () || numElements->isValueDependent()) && "Size must be type- or value-dependent!" ) ? void (0) : __assert_fail ("(!numElements || numElements->isTypeDependent() || numElements->isValueDependent()) && \"Size must be type- or value-dependent!\"" , "clang/lib/AST/ASTContext.cpp", 3802, __extension__ __PRETTY_FUNCTION__ )) | |||
3801 | numElements->isValueDependent()) &&(static_cast <bool> ((!numElements || numElements->isTypeDependent () || numElements->isValueDependent()) && "Size must be type- or value-dependent!" ) ? void (0) : __assert_fail ("(!numElements || numElements->isTypeDependent() || numElements->isValueDependent()) && \"Size must be type- or value-dependent!\"" , "clang/lib/AST/ASTContext.cpp", 3802, __extension__ __PRETTY_FUNCTION__ )) | |||
3802 | "Size must be type- or value-dependent!")(static_cast <bool> ((!numElements || numElements->isTypeDependent () || numElements->isValueDependent()) && "Size must be type- or value-dependent!" ) ? void (0) : __assert_fail ("(!numElements || numElements->isTypeDependent() || numElements->isValueDependent()) && \"Size must be type- or value-dependent!\"" , "clang/lib/AST/ASTContext.cpp", 3802, __extension__ __PRETTY_FUNCTION__ )); | |||
3803 | ||||
3804 | // Dependently-sized array types that do not have a specified number | |||
3805 | // of elements will have their sizes deduced from a dependent | |||
3806 | // initializer. We do no canonicalization here at all, which is okay | |||
3807 | // because they can't be used in most locations. | |||
3808 | if (!numElements) { | |||
3809 | auto *newType | |||
3810 | = new (*this, TypeAlignment) | |||
3811 | DependentSizedArrayType(*this, elementType, QualType(), | |||
3812 | numElements, ASM, elementTypeQuals, | |||
3813 | brackets); | |||
3814 | Types.push_back(newType); | |||
3815 | return QualType(newType, 0); | |||
3816 | } | |||
3817 | ||||
3818 | // Otherwise, we actually build a new type every time, but we | |||
3819 | // also build a canonical type. | |||
3820 | ||||
3821 | SplitQualType canonElementType = getCanonicalType(elementType).split(); | |||
3822 | ||||
3823 | void *insertPos = nullptr; | |||
3824 | llvm::FoldingSetNodeID ID; | |||
3825 | DependentSizedArrayType::Profile(ID, *this, | |||
3826 | QualType(canonElementType.Ty, 0), | |||
3827 | ASM, elementTypeQuals, numElements); | |||
3828 | ||||
3829 | // Look for an existing type with these properties. | |||
3830 | DependentSizedArrayType *canonTy = | |||
3831 | DependentSizedArrayTypes.FindNodeOrInsertPos(ID, insertPos); | |||
3832 | ||||
3833 | // If we don't have one, build one. | |||
3834 | if (!canonTy) { | |||
3835 | canonTy = new (*this, TypeAlignment) | |||
3836 | DependentSizedArrayType(*this, QualType(canonElementType.Ty, 0), | |||
3837 | QualType(), numElements, ASM, elementTypeQuals, | |||
3838 | brackets); | |||
3839 | DependentSizedArrayTypes.InsertNode(canonTy, insertPos); | |||
3840 | Types.push_back(canonTy); | |||
3841 | } | |||
3842 | ||||
3843 | // Apply qualifiers from the element type to the array. | |||
3844 | QualType canon = getQualifiedType(QualType(canonTy,0), | |||
3845 | canonElementType.Quals); | |||
3846 | ||||
3847 | // If we didn't need extra canonicalization for the element type or the size | |||
3848 | // expression, then just use that as our result. | |||
3849 | if (QualType(canonElementType.Ty, 0) == elementType && | |||
3850 | canonTy->getSizeExpr() == numElements) | |||
3851 | return canon; | |||
3852 | ||||
3853 | // Otherwise, we need to build a type which follows the spelling | |||
3854 | // of the element type. | |||
3855 | auto *sugaredType | |||
3856 | = new (*this, TypeAlignment) | |||
3857 | DependentSizedArrayType(*this, elementType, canon, numElements, | |||
3858 | ASM, elementTypeQuals, brackets); | |||
3859 | Types.push_back(sugaredType); | |||
3860 | return QualType(sugaredType, 0); | |||
3861 | } | |||
3862 | ||||
3863 | QualType ASTContext::getIncompleteArrayType(QualType elementType, | |||
3864 | ArrayType::ArraySizeModifier ASM, | |||
3865 | unsigned elementTypeQuals) const { | |||
3866 | llvm::FoldingSetNodeID ID; | |||
3867 | IncompleteArrayType::Profile(ID, elementType, ASM, elementTypeQuals); | |||
3868 | ||||
3869 | void *insertPos = nullptr; | |||
3870 | if (IncompleteArrayType *iat = | |||
3871 | IncompleteArrayTypes.FindNodeOrInsertPos(ID, insertPos)) | |||
3872 | return QualType(iat, 0); | |||
3873 | ||||
3874 | // If the element type isn't canonical, this won't be a canonical type | |||
3875 | // either, so fill in the canonical type field. We also have to pull | |||
3876 | // qualifiers off the element type. | |||
3877 | QualType canon; | |||
3878 | ||||
3879 | // FIXME: Check below should look for qualifiers behind sugar. | |||
3880 | if (!elementType.isCanonical() || elementType.hasLocalQualifiers()) { | |||
3881 | SplitQualType canonSplit = getCanonicalType(elementType).split(); | |||
3882 | canon = getIncompleteArrayType(QualType(canonSplit.Ty, 0), | |||
3883 | ASM, elementTypeQuals); | |||
3884 | canon = getQualifiedType(canon, canonSplit.Quals); | |||
3885 | ||||
3886 | // Get the new insert position for the node we care about. | |||
3887 | IncompleteArrayType *existing = | |||
3888 | IncompleteArrayTypes.FindNodeOrInsertPos(ID, insertPos); | |||
3889 | assert(!existing && "Shouldn't be in the map!")(static_cast <bool> (!existing && "Shouldn't be in the map!" ) ? void (0) : __assert_fail ("!existing && \"Shouldn't be in the map!\"" , "clang/lib/AST/ASTContext.cpp", 3889, __extension__ __PRETTY_FUNCTION__ )); (void) existing; | |||
3890 | } | |||
3891 | ||||
3892 | auto *newType = new (*this, TypeAlignment) | |||
3893 | IncompleteArrayType(elementType, canon, ASM, elementTypeQuals); | |||
3894 | ||||
3895 | IncompleteArrayTypes.InsertNode(newType, insertPos); | |||
3896 | Types.push_back(newType); | |||
3897 | return QualType(newType, 0); | |||
3898 | } | |||
3899 | ||||
3900 | ASTContext::BuiltinVectorTypeInfo | |||
3901 | ASTContext::getBuiltinVectorTypeInfo(const BuiltinType *Ty) const { | |||
3902 | #define SVE_INT_ELTTY(BITS, ELTS, SIGNED, NUMVECTORS){getIntTypeForBitwidth(BITS, SIGNED), llvm::ElementCount::getScalable (ELTS), NUMVECTORS}; \ | |||
3903 | {getIntTypeForBitwidth(BITS, SIGNED), llvm::ElementCount::getScalable(ELTS), \ | |||
3904 | NUMVECTORS}; | |||
3905 | ||||
3906 | #define SVE_ELTTY(ELTTY, ELTS, NUMVECTORS){ELTTY, llvm::ElementCount::getScalable(ELTS), NUMVECTORS}; \ | |||
3907 | {ELTTY, llvm::ElementCount::getScalable(ELTS), NUMVECTORS}; | |||
3908 | ||||
3909 | switch (Ty->getKind()) { | |||
3910 | default: | |||
3911 | llvm_unreachable("Unsupported builtin vector type")::llvm::llvm_unreachable_internal("Unsupported builtin vector type" , "clang/lib/AST/ASTContext.cpp", 3911); | |||
3912 | case BuiltinType::SveInt8: | |||
3913 | return SVE_INT_ELTTY(8, 16, true, 1){getIntTypeForBitwidth(8, true), llvm::ElementCount::getScalable (16), 1};; | |||
3914 | case BuiltinType::SveUint8: | |||
3915 | return SVE_INT_ELTTY(8, 16, false, 1){getIntTypeForBitwidth(8, false), llvm::ElementCount::getScalable (16), 1};; | |||
3916 | case BuiltinType::SveInt8x2: | |||
3917 | return SVE_INT_ELTTY(8, 16, true, 2){getIntTypeForBitwidth(8, true), llvm::ElementCount::getScalable (16), 2};; | |||
3918 | case BuiltinType::SveUint8x2: | |||
3919 | return SVE_INT_ELTTY(8, 16, false, 2){getIntTypeForBitwidth(8, false), llvm::ElementCount::getScalable (16), 2};; | |||
3920 | case BuiltinType::SveInt8x3: | |||
3921 | return SVE_INT_ELTTY(8, 16, true, 3){getIntTypeForBitwidth(8, true), llvm::ElementCount::getScalable (16), 3};; | |||
3922 | case BuiltinType::SveUint8x3: | |||
3923 | return SVE_INT_ELTTY(8, 16, false, 3){getIntTypeForBitwidth(8, false), llvm::ElementCount::getScalable (16), 3};; | |||
3924 | case BuiltinType::SveInt8x4: | |||
3925 | return SVE_INT_ELTTY(8, 16, true, 4){getIntTypeForBitwidth(8, true), llvm::ElementCount::getScalable (16), 4};; | |||
3926 | case BuiltinType::SveUint8x4: | |||
3927 | return SVE_INT_ELTTY(8, 16, false, 4){getIntTypeForBitwidth(8, false), llvm::ElementCount::getScalable (16), 4};; | |||
3928 | case BuiltinType::SveInt16: | |||
3929 | return SVE_INT_ELTTY(16, 8, true, 1){getIntTypeForBitwidth(16, true), llvm::ElementCount::getScalable (8), 1};; | |||
3930 | case BuiltinType::SveUint16: | |||
3931 | return SVE_INT_ELTTY(16, 8, false, 1){getIntTypeForBitwidth(16, false), llvm::ElementCount::getScalable (8), 1};; | |||
3932 | case BuiltinType::SveInt16x2: | |||
3933 | return SVE_INT_ELTTY(16, 8, true, 2){getIntTypeForBitwidth(16, true), llvm::ElementCount::getScalable (8), 2};; | |||
3934 | case BuiltinType::SveUint16x2: | |||
3935 | return SVE_INT_ELTTY(16, 8, false, 2){getIntTypeForBitwidth(16, false), llvm::ElementCount::getScalable (8), 2};; | |||
3936 | case BuiltinType::SveInt16x3: | |||
3937 | return SVE_INT_ELTTY(16, 8, true, 3){getIntTypeForBitwidth(16, true), llvm::ElementCount::getScalable (8), 3};; | |||
3938 | case BuiltinType::SveUint16x3: | |||
3939 | return SVE_INT_ELTTY(16, 8, false, 3){getIntTypeForBitwidth(16, false), llvm::ElementCount::getScalable (8), 3};; | |||
3940 | case BuiltinType::SveInt16x4: | |||
3941 | return SVE_INT_ELTTY(16, 8, true, 4){getIntTypeForBitwidth(16, true), llvm::ElementCount::getScalable (8), 4};; | |||
3942 | case BuiltinType::SveUint16x4: | |||
3943 | return SVE_INT_ELTTY(16, 8, false, 4){getIntTypeForBitwidth(16, false), llvm::ElementCount::getScalable (8), 4};; | |||
3944 | case BuiltinType::SveInt32: | |||
3945 | return SVE_INT_ELTTY(32, 4, true, 1){getIntTypeForBitwidth(32, true), llvm::ElementCount::getScalable (4), 1};; | |||
3946 | case BuiltinType::SveUint32: | |||
3947 | return SVE_INT_ELTTY(32, 4, false, 1){getIntTypeForBitwidth(32, false), llvm::ElementCount::getScalable (4), 1};; | |||
3948 | case BuiltinType::SveInt32x2: | |||
3949 | return SVE_INT_ELTTY(32, 4, true, 2){getIntTypeForBitwidth(32, true), llvm::ElementCount::getScalable (4), 2};; | |||
3950 | case BuiltinType::SveUint32x2: | |||
3951 | return SVE_INT_ELTTY(32, 4, false, 2){getIntTypeForBitwidth(32, false), llvm::ElementCount::getScalable (4), 2};; | |||
3952 | case BuiltinType::SveInt32x3: | |||
3953 | return SVE_INT_ELTTY(32, 4, true, 3){getIntTypeForBitwidth(32, true), llvm::ElementCount::getScalable (4), 3};; | |||
3954 | case BuiltinType::SveUint32x3: | |||
3955 | return SVE_INT_ELTTY(32, 4, false, 3){getIntTypeForBitwidth(32, false), llvm::ElementCount::getScalable (4), 3};; | |||
3956 | case BuiltinType::SveInt32x4: | |||
3957 | return SVE_INT_ELTTY(32, 4, true, 4){getIntTypeForBitwidth(32, true), llvm::ElementCount::getScalable (4), 4};; | |||
3958 | case BuiltinType::SveUint32x4: | |||
3959 | return SVE_INT_ELTTY(32, 4, false, 4){getIntTypeForBitwidth(32, false), llvm::ElementCount::getScalable (4), 4};; | |||
3960 | case BuiltinType::SveInt64: | |||
3961 | return SVE_INT_ELTTY(64, 2, true, 1){getIntTypeForBitwidth(64, true), llvm::ElementCount::getScalable (2), 1};; | |||
3962 | case BuiltinType::SveUint64: | |||
3963 | return SVE_INT_ELTTY(64, 2, false, 1){getIntTypeForBitwidth(64, false), llvm::ElementCount::getScalable (2), 1};; | |||
3964 | case BuiltinType::SveInt64x2: | |||
3965 | return SVE_INT_ELTTY(64, 2, true, 2){getIntTypeForBitwidth(64, true), llvm::ElementCount::getScalable (2), 2};; | |||
3966 | case BuiltinType::SveUint64x2: | |||
3967 | return SVE_INT_ELTTY(64, 2, false, 2){getIntTypeForBitwidth(64, false), llvm::ElementCount::getScalable (2), 2};; | |||
3968 | case BuiltinType::SveInt64x3: | |||
3969 | return SVE_INT_ELTTY(64, 2, true, 3){getIntTypeForBitwidth(64, true), llvm::ElementCount::getScalable (2), 3};; | |||
3970 | case BuiltinType::SveUint64x3: | |||
3971 | return SVE_INT_ELTTY(64, 2, false, 3){getIntTypeForBitwidth(64, false), llvm::ElementCount::getScalable (2), 3};; | |||
3972 | case BuiltinType::SveInt64x4: | |||
3973 | return SVE_INT_ELTTY(64, 2, true, 4){getIntTypeForBitwidth(64, true), llvm::ElementCount::getScalable (2), 4};; | |||
3974 | case BuiltinType::SveUint64x4: | |||
3975 | return SVE_INT_ELTTY(64, 2, false, 4){getIntTypeForBitwidth(64, false), llvm::ElementCount::getScalable (2), 4};; | |||
3976 | case BuiltinType::SveBool: | |||
3977 | return SVE_ELTTY(BoolTy, 16, 1){BoolTy, llvm::ElementCount::getScalable(16), 1};; | |||
3978 | case BuiltinType::SveBoolx2: | |||
3979 | return SVE_ELTTY(BoolTy, 16, 2){BoolTy, llvm::ElementCount::getScalable(16), 2};; | |||
3980 | case BuiltinType::SveBoolx4: | |||
3981 | return SVE_ELTTY(BoolTy, 16, 4){BoolTy, llvm::ElementCount::getScalable(16), 4};; | |||
3982 | case BuiltinType::SveFloat16: | |||
3983 | return SVE_ELTTY(HalfTy, 8, 1){HalfTy, llvm::ElementCount::getScalable(8), 1};; | |||
3984 | case BuiltinType::SveFloat16x2: | |||
3985 | return SVE_ELTTY(HalfTy, 8, 2){HalfTy, llvm::ElementCount::getScalable(8), 2};; | |||
3986 | case BuiltinType::SveFloat16x3: | |||
3987 | return SVE_ELTTY(HalfTy, 8, 3){HalfTy, llvm::ElementCount::getScalable(8), 3};; | |||
3988 | case BuiltinType::SveFloat16x4: | |||
3989 | return SVE_ELTTY(HalfTy, 8, 4){HalfTy, llvm::ElementCount::getScalable(8), 4};; | |||
3990 | case BuiltinType::SveFloat32: | |||
3991 | return SVE_ELTTY(FloatTy, 4, 1){FloatTy, llvm::ElementCount::getScalable(4), 1};; | |||
3992 | case BuiltinType::SveFloat32x2: | |||
3993 | return SVE_ELTTY(FloatTy, 4, 2){FloatTy, llvm::ElementCount::getScalable(4), 2};; | |||
3994 | case BuiltinType::SveFloat32x3: | |||
3995 | return SVE_ELTTY(FloatTy, 4, 3){FloatTy, llvm::ElementCount::getScalable(4), 3};; | |||
3996 | case BuiltinType::SveFloat32x4: | |||
3997 | return SVE_ELTTY(FloatTy, 4, 4){FloatTy, llvm::ElementCount::getScalable(4), 4};; | |||
3998 | case BuiltinType::SveFloat64: | |||
3999 | return SVE_ELTTY(DoubleTy, 2, 1){DoubleTy, llvm::ElementCount::getScalable(2), 1};; | |||
4000 | case BuiltinType::SveFloat64x2: | |||
4001 | return SVE_ELTTY(DoubleTy, 2, 2){DoubleTy, llvm::ElementCount::getScalable(2), 2};; | |||
4002 | case BuiltinType::SveFloat64x3: | |||
4003 | return SVE_ELTTY(DoubleTy, 2, 3){DoubleTy, llvm::ElementCount::getScalable(2), 3};; | |||
4004 | case BuiltinType::SveFloat64x4: | |||
4005 | return SVE_ELTTY(DoubleTy, 2, 4){DoubleTy, llvm::ElementCount::getScalable(2), 4};; | |||
4006 | case BuiltinType::SveBFloat16: | |||
4007 | return SVE_ELTTY(BFloat16Ty, 8, 1){BFloat16Ty, llvm::ElementCount::getScalable(8), 1};; | |||
4008 | case BuiltinType::SveBFloat16x2: | |||
4009 | return SVE_ELTTY(BFloat16Ty, 8, 2){BFloat16Ty, llvm::ElementCount::getScalable(8), 2};; | |||
4010 | case BuiltinType::SveBFloat16x3: | |||
4011 | return SVE_ELTTY(BFloat16Ty, 8, 3){BFloat16Ty, llvm::ElementCount::getScalable(8), 3};; | |||
4012 | case BuiltinType::SveBFloat16x4: | |||
4013 | return SVE_ELTTY(BFloat16Ty, 8, 4){BFloat16Ty, llvm::ElementCount::getScalable(8), 4};; | |||
4014 | #define RVV_VECTOR_TYPE_INT(Name, Id, SingletonId, NumEls, ElBits, NF, \ | |||
4015 | IsSigned) \ | |||
4016 | case BuiltinType::Id: \ | |||
4017 | return {getIntTypeForBitwidth(ElBits, IsSigned), \ | |||
4018 | llvm::ElementCount::getScalable(NumEls), NF}; | |||
4019 | #define RVV_VECTOR_TYPE_FLOAT(Name, Id, SingletonId, NumEls, ElBits, NF) \ | |||
4020 | case BuiltinType::Id: \ | |||
4021 | return {ElBits == 16 ? Float16Ty : (ElBits == 32 ? FloatTy : DoubleTy), \ | |||
4022 | llvm::ElementCount::getScalable(NumEls), NF}; | |||
4023 | #define RVV_PREDICATE_TYPE(Name, Id, SingletonId, NumEls) \ | |||
4024 | case BuiltinType::Id: \ | |||
4025 | return {BoolTy, llvm::ElementCount::getScalable(NumEls), 1}; | |||
4026 | #include "clang/Basic/RISCVVTypes.def" | |||
4027 | } | |||
4028 | } | |||
4029 | ||||
4030 | /// getExternrefType - Return a WebAssembly externref type, which represents an | |||
4031 | /// opaque reference to a host value. | |||
4032 | QualType ASTContext::getWebAssemblyExternrefType() const { | |||
4033 | if (Target->getTriple().isWasm() && Target->hasFeature("reference-types")) { | |||
4034 | #define WASM_REF_TYPE(Name, MangledName, Id, SingletonId, AS) \ | |||
4035 | if (BuiltinType::Id == BuiltinType::WasmExternRef) \ | |||
4036 | return SingletonId; | |||
4037 | #include "clang/Basic/WebAssemblyReferenceTypes.def" | |||
4038 | } | |||
4039 | llvm_unreachable(::llvm::llvm_unreachable_internal("shouldn't try to generate type externref outside WebAssembly target" , "clang/lib/AST/ASTContext.cpp", 4040) | |||
4040 | "shouldn't try to generate type externref outside WebAssembly target")::llvm::llvm_unreachable_internal("shouldn't try to generate type externref outside WebAssembly target" , "clang/lib/AST/ASTContext.cpp", 4040); | |||
4041 | } | |||
4042 | ||||
4043 | /// getScalableVectorType - Return the unique reference to a scalable vector | |||
4044 | /// type of the specified element type and size. VectorType must be a built-in | |||
4045 | /// type. | |||
4046 | QualType ASTContext::getScalableVectorType(QualType EltTy, | |||
4047 | unsigned NumElts) const { | |||
4048 | if (Target->hasAArch64SVETypes()) { | |||
4049 | uint64_t EltTySize = getTypeSize(EltTy); | |||
4050 | #define SVE_VECTOR_TYPE(Name, MangledName, Id, SingletonId, NumEls, ElBits, \ | |||
4051 | IsSigned, IsFP, IsBF) \ | |||
4052 | if (!EltTy->isBooleanType() && \ | |||
4053 | ((EltTy->hasIntegerRepresentation() && \ | |||
4054 | EltTy->hasSignedIntegerRepresentation() == IsSigned) || \ | |||
4055 | (EltTy->hasFloatingRepresentation() && !EltTy->isBFloat16Type() && \ | |||
4056 | IsFP && !IsBF) || \ | |||
4057 | (EltTy->hasFloatingRepresentation() && EltTy->isBFloat16Type() && \ | |||
4058 | IsBF && !IsFP)) && \ | |||
4059 | EltTySize == ElBits && NumElts == NumEls) { \ | |||
4060 | return SingletonId; \ | |||
4061 | } | |||
4062 | #define SVE_PREDICATE_TYPE(Name, MangledName, Id, SingletonId, NumEls) \ | |||
4063 | if (EltTy->isBooleanType() && NumElts == NumEls) \ | |||
4064 | return SingletonId; | |||
4065 | #define SVE_OPAQUE_TYPE(Name, MangledName, Id, SingleTonId) | |||
4066 | #include "clang/Basic/AArch64SVEACLETypes.def" | |||
4067 | } else if (Target->hasRISCVVTypes()) { | |||
4068 | uint64_t EltTySize = getTypeSize(EltTy); | |||
4069 | #define RVV_VECTOR_TYPE(Name, Id, SingletonId, NumEls, ElBits, NF, IsSigned, \ | |||
4070 | IsFP) \ | |||
4071 | if (!EltTy->isBooleanType() && \ | |||
4072 | ((EltTy->hasIntegerRepresentation() && \ | |||
4073 | EltTy->hasSignedIntegerRepresentation() == IsSigned) || \ | |||
4074 | (EltTy->hasFloatingRepresentation() && IsFP)) && \ | |||
4075 | EltTySize == ElBits && NumElts == NumEls) \ | |||
4076 | return SingletonId; | |||
4077 | #define RVV_PREDICATE_TYPE(Name, Id, SingletonId, NumEls) \ | |||
4078 | if (EltTy->isBooleanType() && NumElts == NumEls) \ | |||
4079 | return SingletonId; | |||
4080 | #include "clang/Basic/RISCVVTypes.def" | |||
4081 | } | |||
4082 | return QualType(); | |||
4083 | } | |||
4084 | ||||
4085 | /// getVectorType - Return the unique reference to a vector type of | |||
4086 | /// the specified element type and size. VectorType must be a built-in type. | |||
4087 | QualType ASTContext::getVectorType(QualType vecType, unsigned NumElts, | |||
4088 | VectorType::VectorKind VecKind) const { | |||
4089 | assert(vecType->isBuiltinType() ||(static_cast <bool> (vecType->isBuiltinType() || (vecType ->isBitIntType() && llvm::isPowerOf2_32(vecType-> getAs<BitIntType>()->getNumBits()) && vecType ->getAs<BitIntType>()->getNumBits() >= 8)) ? void (0) : __assert_fail ("vecType->isBuiltinType() || (vecType->isBitIntType() && llvm::isPowerOf2_32(vecType->getAs<BitIntType>()->getNumBits()) && vecType->getAs<BitIntType>()->getNumBits() >= 8)" , "clang/lib/AST/ASTContext.cpp", 4093, __extension__ __PRETTY_FUNCTION__ )) | |||
4090 | (vecType->isBitIntType() &&(static_cast <bool> (vecType->isBuiltinType() || (vecType ->isBitIntType() && llvm::isPowerOf2_32(vecType-> getAs<BitIntType>()->getNumBits()) && vecType ->getAs<BitIntType>()->getNumBits() >= 8)) ? void (0) : __assert_fail ("vecType->isBuiltinType() || (vecType->isBitIntType() && llvm::isPowerOf2_32(vecType->getAs<BitIntType>()->getNumBits()) && vecType->getAs<BitIntType>()->getNumBits() >= 8)" , "clang/lib/AST/ASTContext.cpp", 4093, __extension__ __PRETTY_FUNCTION__ )) | |||
4091 | // Only support _BitInt elements with byte-sized power of 2 NumBits.(static_cast <bool> (vecType->isBuiltinType() || (vecType ->isBitIntType() && llvm::isPowerOf2_32(vecType-> getAs<BitIntType>()->getNumBits()) && vecType ->getAs<BitIntType>()->getNumBits() >= 8)) ? void (0) : __assert_fail ("vecType->isBuiltinType() || (vecType->isBitIntType() && llvm::isPowerOf2_32(vecType->getAs<BitIntType>()->getNumBits()) && vecType->getAs<BitIntType>()->getNumBits() >= 8)" , "clang/lib/AST/ASTContext.cpp", 4093, __extension__ __PRETTY_FUNCTION__ )) | |||
4092 | llvm::isPowerOf2_32(vecType->getAs<BitIntType>()->getNumBits()) &&(static_cast <bool> (vecType->isBuiltinType() || (vecType ->isBitIntType() && llvm::isPowerOf2_32(vecType-> getAs<BitIntType>()->getNumBits()) && vecType ->getAs<BitIntType>()->getNumBits() >= 8)) ? void (0) : __assert_fail ("vecType->isBuiltinType() || (vecType->isBitIntType() && llvm::isPowerOf2_32(vecType->getAs<BitIntType>()->getNumBits()) && vecType->getAs<BitIntType>()->getNumBits() >= 8)" , "clang/lib/AST/ASTContext.cpp", 4093, __extension__ __PRETTY_FUNCTION__ )) | |||
4093 | vecType->getAs<BitIntType>()->getNumBits() >= 8))(static_cast <bool> (vecType->isBuiltinType() || (vecType ->isBitIntType() && llvm::isPowerOf2_32(vecType-> getAs<BitIntType>()->getNumBits()) && vecType ->getAs<BitIntType>()->getNumBits() >= 8)) ? void (0) : __assert_fail ("vecType->isBuiltinType() || (vecType->isBitIntType() && llvm::isPowerOf2_32(vecType->getAs<BitIntType>()->getNumBits()) && vecType->getAs<BitIntType>()->getNumBits() >= 8)" , "clang/lib/AST/ASTContext.cpp", 4093, __extension__ __PRETTY_FUNCTION__ )); | |||
4094 | ||||
4095 | // Check if we've already instantiated a vector of this type. | |||
4096 | llvm::FoldingSetNodeID ID; | |||
4097 | VectorType::Profile(ID, vecType, NumElts, Type::Vector, VecKind); | |||
4098 | ||||
4099 | void *InsertPos = nullptr; | |||
4100 | if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
4101 | return QualType(VTP, 0); | |||
4102 | ||||
4103 | // If the element type isn't canonical, this won't be a canonical type either, | |||
4104 | // so fill in the canonical type field. | |||
4105 | QualType Canonical; | |||
4106 | if (!vecType.isCanonical()) { | |||
4107 | Canonical = getVectorType(getCanonicalType(vecType), NumElts, VecKind); | |||
4108 | ||||
4109 | // Get the new insert position for the node we care about. | |||
4110 | VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
4111 | assert(!NewIP && "Shouldn't be in the map!")(static_cast <bool> (!NewIP && "Shouldn't be in the map!" ) ? void (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\"" , "clang/lib/AST/ASTContext.cpp", 4111, __extension__ __PRETTY_FUNCTION__ )); (void)NewIP; | |||
4112 | } | |||
4113 | auto *New = new (*this, TypeAlignment) | |||
4114 | VectorType(vecType, NumElts, Canonical, VecKind); | |||
4115 | VectorTypes.InsertNode(New, InsertPos); | |||
4116 | Types.push_back(New); | |||
4117 | return QualType(New, 0); | |||
4118 | } | |||
4119 | ||||
4120 | QualType | |||
4121 | ASTContext::getDependentVectorType(QualType VecType, Expr *SizeExpr, | |||
4122 | SourceLocation AttrLoc, | |||
4123 | VectorType::VectorKind VecKind) const { | |||
4124 | llvm::FoldingSetNodeID ID; | |||
4125 | DependentVectorType::Profile(ID, *this, getCanonicalType(VecType), SizeExpr, | |||
4126 | VecKind); | |||
4127 | void *InsertPos = nullptr; | |||
4128 | DependentVectorType *Canon = | |||
4129 | DependentVectorTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
4130 | DependentVectorType *New; | |||
4131 | ||||
4132 | if (Canon) { | |||
4133 | New = new (*this, TypeAlignment) DependentVectorType( | |||
4134 | *this, VecType, QualType(Canon, 0), SizeExpr, AttrLoc, VecKind); | |||
4135 | } else { | |||
4136 | QualType CanonVecTy = getCanonicalType(VecType); | |||
4137 | if (CanonVecTy == VecType) { | |||
4138 | New = new (*this, TypeAlignment) DependentVectorType( | |||
4139 | *this, VecType, QualType(), SizeExpr, AttrLoc, VecKind); | |||
4140 | ||||
4141 | DependentVectorType *CanonCheck = | |||
4142 | DependentVectorTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
4143 | assert(!CanonCheck &&(static_cast <bool> (!CanonCheck && "Dependent-sized vector_size canonical type broken" ) ? void (0) : __assert_fail ("!CanonCheck && \"Dependent-sized vector_size canonical type broken\"" , "clang/lib/AST/ASTContext.cpp", 4144, __extension__ __PRETTY_FUNCTION__ )) | |||
4144 | "Dependent-sized vector_size canonical type broken")(static_cast <bool> (!CanonCheck && "Dependent-sized vector_size canonical type broken" ) ? void (0) : __assert_fail ("!CanonCheck && \"Dependent-sized vector_size canonical type broken\"" , "clang/lib/AST/ASTContext.cpp", 4144, __extension__ __PRETTY_FUNCTION__ )); | |||
4145 | (void)CanonCheck; | |||
4146 | DependentVectorTypes.InsertNode(New, InsertPos); | |||
4147 | } else { | |||
4148 | QualType CanonTy = getDependentVectorType(CanonVecTy, SizeExpr, | |||
4149 | SourceLocation(), VecKind); | |||
4150 | New = new (*this, TypeAlignment) DependentVectorType( | |||
4151 | *this, VecType, CanonTy, SizeExpr, AttrLoc, VecKind); | |||
4152 | } | |||
4153 | } | |||
4154 | ||||
4155 | Types.push_back(New); | |||
4156 | return QualType(New, 0); | |||
4157 | } | |||
4158 | ||||
4159 | /// getExtVectorType - Return the unique reference to an extended vector type of | |||
4160 | /// the specified element type and size. VectorType must be a built-in type. | |||
4161 | QualType ASTContext::getExtVectorType(QualType vecType, | |||
4162 | unsigned NumElts) const { | |||
4163 | assert(vecType->isBuiltinType() || vecType->isDependentType() ||(static_cast <bool> (vecType->isBuiltinType() || vecType ->isDependentType() || (vecType->isBitIntType() && llvm::isPowerOf2_32(vecType->getAs<BitIntType>()-> getNumBits()) && vecType->getAs<BitIntType>( )->getNumBits() >= 8)) ? void (0) : __assert_fail ("vecType->isBuiltinType() || vecType->isDependentType() || (vecType->isBitIntType() && llvm::isPowerOf2_32(vecType->getAs<BitIntType>()->getNumBits()) && vecType->getAs<BitIntType>()->getNumBits() >= 8)" , "clang/lib/AST/ASTContext.cpp", 4167, __extension__ __PRETTY_FUNCTION__ )) | |||
4164 | (vecType->isBitIntType() &&(static_cast <bool> (vecType->isBuiltinType() || vecType ->isDependentType() || (vecType->isBitIntType() && llvm::isPowerOf2_32(vecType->getAs<BitIntType>()-> getNumBits()) && vecType->getAs<BitIntType>( )->getNumBits() >= 8)) ? void (0) : __assert_fail ("vecType->isBuiltinType() || vecType->isDependentType() || (vecType->isBitIntType() && llvm::isPowerOf2_32(vecType->getAs<BitIntType>()->getNumBits()) && vecType->getAs<BitIntType>()->getNumBits() >= 8)" , "clang/lib/AST/ASTContext.cpp", 4167, __extension__ __PRETTY_FUNCTION__ )) | |||
4165 | // Only support _BitInt elements with byte-sized power of 2 NumBits.(static_cast <bool> (vecType->isBuiltinType() || vecType ->isDependentType() || (vecType->isBitIntType() && llvm::isPowerOf2_32(vecType->getAs<BitIntType>()-> getNumBits()) && vecType->getAs<BitIntType>( )->getNumBits() >= 8)) ? void (0) : __assert_fail ("vecType->isBuiltinType() || vecType->isDependentType() || (vecType->isBitIntType() && llvm::isPowerOf2_32(vecType->getAs<BitIntType>()->getNumBits()) && vecType->getAs<BitIntType>()->getNumBits() >= 8)" , "clang/lib/AST/ASTContext.cpp", 4167, __extension__ __PRETTY_FUNCTION__ )) | |||
4166 | llvm::isPowerOf2_32(vecType->getAs<BitIntType>()->getNumBits()) &&(static_cast <bool> (vecType->isBuiltinType() || vecType ->isDependentType() || (vecType->isBitIntType() && llvm::isPowerOf2_32(vecType->getAs<BitIntType>()-> getNumBits()) && vecType->getAs<BitIntType>( )->getNumBits() >= 8)) ? void (0) : __assert_fail ("vecType->isBuiltinType() || vecType->isDependentType() || (vecType->isBitIntType() && llvm::isPowerOf2_32(vecType->getAs<BitIntType>()->getNumBits()) && vecType->getAs<BitIntType>()->getNumBits() >= 8)" , "clang/lib/AST/ASTContext.cpp", 4167, __extension__ __PRETTY_FUNCTION__ )) | |||
4167 | vecType->getAs<BitIntType>()->getNumBits() >= 8))(static_cast <bool> (vecType->isBuiltinType() || vecType ->isDependentType() || (vecType->isBitIntType() && llvm::isPowerOf2_32(vecType->getAs<BitIntType>()-> getNumBits()) && vecType->getAs<BitIntType>( )->getNumBits() >= 8)) ? void (0) : __assert_fail ("vecType->isBuiltinType() || vecType->isDependentType() || (vecType->isBitIntType() && llvm::isPowerOf2_32(vecType->getAs<BitIntType>()->getNumBits()) && vecType->getAs<BitIntType>()->getNumBits() >= 8)" , "clang/lib/AST/ASTContext.cpp", 4167, __extension__ __PRETTY_FUNCTION__ )); | |||
4168 | ||||
4169 | // Check if we've already instantiated a vector of this type. | |||
4170 | llvm::FoldingSetNodeID ID; | |||
4171 | VectorType::Profile(ID, vecType, NumElts, Type::ExtVector, | |||
4172 | VectorType::GenericVector); | |||
4173 | void *InsertPos = nullptr; | |||
4174 | if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
4175 | return QualType(VTP, 0); | |||
4176 | ||||
4177 | // If the element type isn't canonical, this won't be a canonical type either, | |||
4178 | // so fill in the canonical type field. | |||
4179 | QualType Canonical; | |||
4180 | if (!vecType.isCanonical()) { | |||
4181 | Canonical = getExtVectorType(getCanonicalType(vecType), NumElts); | |||
4182 | ||||
4183 | // Get the new insert position for the node we care about. | |||
4184 | VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
4185 | assert(!NewIP && "Shouldn't be in the map!")(static_cast <bool> (!NewIP && "Shouldn't be in the map!" ) ? void (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\"" , "clang/lib/AST/ASTContext.cpp", 4185, __extension__ __PRETTY_FUNCTION__ )); (void)NewIP; | |||
4186 | } | |||
4187 | auto *New = new (*this, TypeAlignment) | |||
4188 | ExtVectorType(vecType, NumElts, Canonical); | |||
4189 | VectorTypes.InsertNode(New, InsertPos); | |||
4190 | Types.push_back(New); | |||
4191 | return QualType(New, 0); | |||
4192 | } | |||
4193 | ||||
4194 | QualType | |||
4195 | ASTContext::getDependentSizedExtVectorType(QualType vecType, | |||
4196 | Expr *SizeExpr, | |||
4197 | SourceLocation AttrLoc) const { | |||
4198 | llvm::FoldingSetNodeID ID; | |||
4199 | DependentSizedExtVectorType::Profile(ID, *this, getCanonicalType(vecType), | |||
4200 | SizeExpr); | |||
4201 | ||||
4202 | void *InsertPos = nullptr; | |||
4203 | DependentSizedExtVectorType *Canon | |||
4204 | = DependentSizedExtVectorTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
4205 | DependentSizedExtVectorType *New; | |||
4206 | if (Canon) { | |||
4207 | // We already have a canonical version of this array type; use it as | |||
4208 | // the canonical type for a newly-built type. | |||
4209 | New = new (*this, TypeAlignment) | |||
4210 | DependentSizedExtVectorType(*this, vecType, QualType(Canon, 0), | |||
4211 | SizeExpr, AttrLoc); | |||
4212 | } else { | |||
4213 | QualType CanonVecTy = getCanonicalType(vecType); | |||
4214 | if (CanonVecTy == vecType) { | |||
4215 | New = new (*this, TypeAlignment) | |||
4216 | DependentSizedExtVectorType(*this, vecType, QualType(), SizeExpr, | |||
4217 | AttrLoc); | |||
4218 | ||||
4219 | DependentSizedExtVectorType *CanonCheck | |||
4220 | = DependentSizedExtVectorTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
4221 | assert(!CanonCheck && "Dependent-sized ext_vector canonical type broken")(static_cast <bool> (!CanonCheck && "Dependent-sized ext_vector canonical type broken" ) ? void (0) : __assert_fail ("!CanonCheck && \"Dependent-sized ext_vector canonical type broken\"" , "clang/lib/AST/ASTContext.cpp", 4221, __extension__ __PRETTY_FUNCTION__ )); | |||
4222 | (void)CanonCheck; | |||
4223 | DependentSizedExtVectorTypes.InsertNode(New, InsertPos); | |||
4224 | } else { | |||
4225 | QualType CanonExtTy = getDependentSizedExtVectorType(CanonVecTy, SizeExpr, | |||
4226 | SourceLocation()); | |||
4227 | New = new (*this, TypeAlignment) DependentSizedExtVectorType( | |||
4228 | *this, vecType, CanonExtTy, SizeExpr, AttrLoc); | |||
4229 | } | |||
4230 | } | |||
4231 | ||||
4232 | Types.push_back(New); | |||
4233 | return QualType(New, 0); | |||
4234 | } | |||
4235 | ||||
4236 | QualType ASTContext::getConstantMatrixType(QualType ElementTy, unsigned NumRows, | |||
4237 | unsigned NumColumns) const { | |||
4238 | llvm::FoldingSetNodeID ID; | |||
4239 | ConstantMatrixType::Profile(ID, ElementTy, NumRows, NumColumns, | |||
4240 | Type::ConstantMatrix); | |||
4241 | ||||
4242 | assert(MatrixType::isValidElementType(ElementTy) &&(static_cast <bool> (MatrixType::isValidElementType(ElementTy ) && "need a valid element type") ? void (0) : __assert_fail ("MatrixType::isValidElementType(ElementTy) && \"need a valid element type\"" , "clang/lib/AST/ASTContext.cpp", 4243, __extension__ __PRETTY_FUNCTION__ )) | |||
4243 | "need a valid element type")(static_cast <bool> (MatrixType::isValidElementType(ElementTy ) && "need a valid element type") ? void (0) : __assert_fail ("MatrixType::isValidElementType(ElementTy) && \"need a valid element type\"" , "clang/lib/AST/ASTContext.cpp", 4243, __extension__ __PRETTY_FUNCTION__ )); | |||
4244 | assert(ConstantMatrixType::isDimensionValid(NumRows) &&(static_cast <bool> (ConstantMatrixType::isDimensionValid (NumRows) && ConstantMatrixType::isDimensionValid(NumColumns ) && "need valid matrix dimensions") ? void (0) : __assert_fail ("ConstantMatrixType::isDimensionValid(NumRows) && ConstantMatrixType::isDimensionValid(NumColumns) && \"need valid matrix dimensions\"" , "clang/lib/AST/ASTContext.cpp", 4246, __extension__ __PRETTY_FUNCTION__ )) | |||
4245 | ConstantMatrixType::isDimensionValid(NumColumns) &&(static_cast <bool> (ConstantMatrixType::isDimensionValid (NumRows) && ConstantMatrixType::isDimensionValid(NumColumns ) && "need valid matrix dimensions") ? void (0) : __assert_fail ("ConstantMatrixType::isDimensionValid(NumRows) && ConstantMatrixType::isDimensionValid(NumColumns) && \"need valid matrix dimensions\"" , "clang/lib/AST/ASTContext.cpp", 4246, __extension__ __PRETTY_FUNCTION__ )) | |||
4246 | "need valid matrix dimensions")(static_cast <bool> (ConstantMatrixType::isDimensionValid (NumRows) && ConstantMatrixType::isDimensionValid(NumColumns ) && "need valid matrix dimensions") ? void (0) : __assert_fail ("ConstantMatrixType::isDimensionValid(NumRows) && ConstantMatrixType::isDimensionValid(NumColumns) && \"need valid matrix dimensions\"" , "clang/lib/AST/ASTContext.cpp", 4246, __extension__ __PRETTY_FUNCTION__ )); | |||
4247 | void *InsertPos = nullptr; | |||
4248 | if (ConstantMatrixType *MTP = MatrixTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
4249 | return QualType(MTP, 0); | |||
4250 | ||||
4251 | QualType Canonical; | |||
4252 | if (!ElementTy.isCanonical()) { | |||
4253 | Canonical = | |||
4254 | getConstantMatrixType(getCanonicalType(ElementTy), NumRows, NumColumns); | |||
4255 | ||||
4256 | ConstantMatrixType *NewIP = MatrixTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
4257 | assert(!NewIP && "Matrix type shouldn't already exist in the map")(static_cast <bool> (!NewIP && "Matrix type shouldn't already exist in the map" ) ? void (0) : __assert_fail ("!NewIP && \"Matrix type shouldn't already exist in the map\"" , "clang/lib/AST/ASTContext.cpp", 4257, __extension__ __PRETTY_FUNCTION__ )); | |||
4258 | (void)NewIP; | |||
4259 | } | |||
4260 | ||||
4261 | auto *New = new (*this, TypeAlignment) | |||
4262 | ConstantMatrixType(ElementTy, NumRows, NumColumns, Canonical); | |||
4263 | MatrixTypes.InsertNode(New, InsertPos); | |||
4264 | Types.push_back(New); | |||
4265 | return QualType(New, 0); | |||
4266 | } | |||
4267 | ||||
4268 | QualType ASTContext::getDependentSizedMatrixType(QualType ElementTy, | |||
4269 | Expr *RowExpr, | |||
4270 | Expr *ColumnExpr, | |||
4271 | SourceLocation AttrLoc) const { | |||
4272 | QualType CanonElementTy = getCanonicalType(ElementTy); | |||
4273 | llvm::FoldingSetNodeID ID; | |||
4274 | DependentSizedMatrixType::Profile(ID, *this, CanonElementTy, RowExpr, | |||
4275 | ColumnExpr); | |||
4276 | ||||
4277 | void *InsertPos = nullptr; | |||
4278 | DependentSizedMatrixType *Canon = | |||
4279 | DependentSizedMatrixTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
4280 | ||||
4281 | if (!Canon) { | |||
4282 | Canon = new (*this, TypeAlignment) DependentSizedMatrixType( | |||
4283 | *this, CanonElementTy, QualType(), RowExpr, ColumnExpr, AttrLoc); | |||
4284 | #ifndef NDEBUG | |||
4285 | DependentSizedMatrixType *CanonCheck = | |||
4286 | DependentSizedMatrixTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
4287 | assert(!CanonCheck && "Dependent-sized matrix canonical type broken")(static_cast <bool> (!CanonCheck && "Dependent-sized matrix canonical type broken" ) ? void (0) : __assert_fail ("!CanonCheck && \"Dependent-sized matrix canonical type broken\"" , "clang/lib/AST/ASTContext.cpp", 4287, __extension__ __PRETTY_FUNCTION__ )); | |||
4288 | #endif | |||
4289 | DependentSizedMatrixTypes.InsertNode(Canon, InsertPos); | |||
4290 | Types.push_back(Canon); | |||
4291 | } | |||
4292 | ||||
4293 | // Already have a canonical version of the matrix type | |||
4294 | // | |||
4295 | // If it exactly matches the requested type, use it directly. | |||
4296 | if (Canon->getElementType() == ElementTy && Canon->getRowExpr() == RowExpr && | |||
4297 | Canon->getRowExpr() == ColumnExpr) | |||
4298 | return QualType(Canon, 0); | |||
4299 | ||||
4300 | // Use Canon as the canonical type for newly-built type. | |||
4301 | DependentSizedMatrixType *New = new (*this, TypeAlignment) | |||
4302 | DependentSizedMatrixType(*this, ElementTy, QualType(Canon, 0), RowExpr, | |||
4303 | ColumnExpr, AttrLoc); | |||
4304 | Types.push_back(New); | |||
4305 | return QualType(New, 0); | |||
4306 | } | |||
4307 | ||||
4308 | QualType ASTContext::getDependentAddressSpaceType(QualType PointeeType, | |||
4309 | Expr *AddrSpaceExpr, | |||
4310 | SourceLocation AttrLoc) const { | |||
4311 | assert(AddrSpaceExpr->isInstantiationDependent())(static_cast <bool> (AddrSpaceExpr->isInstantiationDependent ()) ? void (0) : __assert_fail ("AddrSpaceExpr->isInstantiationDependent()" , "clang/lib/AST/ASTContext.cpp", 4311, __extension__ __PRETTY_FUNCTION__ )); | |||
4312 | ||||
4313 | QualType canonPointeeType = getCanonicalType(PointeeType); | |||
4314 | ||||
4315 | void *insertPos = nullptr; | |||
4316 | llvm::FoldingSetNodeID ID; | |||
4317 | DependentAddressSpaceType::Profile(ID, *this, canonPointeeType, | |||
4318 | AddrSpaceExpr); | |||
4319 | ||||
4320 | DependentAddressSpaceType *canonTy = | |||
4321 | DependentAddressSpaceTypes.FindNodeOrInsertPos(ID, insertPos); | |||
4322 | ||||
4323 | if (!canonTy) { | |||
4324 | canonTy = new (*this, TypeAlignment) | |||
4325 | DependentAddressSpaceType(*this, canonPointeeType, | |||
4326 | QualType(), AddrSpaceExpr, AttrLoc); | |||
4327 | DependentAddressSpaceTypes.InsertNode(canonTy, insertPos); | |||
4328 | Types.push_back(canonTy); | |||
4329 | } | |||
4330 | ||||
4331 | if (canonPointeeType == PointeeType && | |||
4332 | canonTy->getAddrSpaceExpr() == AddrSpaceExpr) | |||
4333 | return QualType(canonTy, 0); | |||
4334 | ||||
4335 | auto *sugaredType | |||
4336 | = new (*this, TypeAlignment) | |||
4337 | DependentAddressSpaceType(*this, PointeeType, QualType(canonTy, 0), | |||
4338 | AddrSpaceExpr, AttrLoc); | |||
4339 | Types.push_back(sugaredType); | |||
4340 | return QualType(sugaredType, 0); | |||
4341 | } | |||
4342 | ||||
4343 | /// Determine whether \p T is canonical as the result type of a function. | |||
4344 | static bool isCanonicalResultType(QualType T) { | |||
4345 | return T.isCanonical() && | |||
4346 | (T.getObjCLifetime() == Qualifiers::OCL_None || | |||
4347 | T.getObjCLifetime() == Qualifiers::OCL_ExplicitNone); | |||
4348 | } | |||
4349 | ||||
4350 | /// getFunctionNoProtoType - Return a K&R style C function type like 'int()'. | |||
4351 | QualType | |||
4352 | ASTContext::getFunctionNoProtoType(QualType ResultTy, | |||
4353 | const FunctionType::ExtInfo &Info) const { | |||
4354 | // FIXME: This assertion cannot be enabled (yet) because the ObjC rewriter | |||
4355 | // functionality creates a function without a prototype regardless of | |||
4356 | // language mode (so it makes them even in C++). Once the rewriter has been | |||
4357 | // fixed, this assertion can be enabled again. | |||
4358 | //assert(!LangOpts.requiresStrictPrototypes() && | |||
4359 | // "strict prototypes are disabled"); | |||
4360 | ||||
4361 | // Unique functions, to guarantee there is only one function of a particular | |||
4362 | // structure. | |||
4363 | llvm::FoldingSetNodeID ID; | |||
4364 | FunctionNoProtoType::Profile(ID, ResultTy, Info); | |||
4365 | ||||
4366 | void *InsertPos = nullptr; | |||
4367 | if (FunctionNoProtoType *FT = | |||
4368 | FunctionNoProtoTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
4369 | return QualType(FT, 0); | |||
4370 | ||||
4371 | QualType Canonical; | |||
4372 | if (!isCanonicalResultType(ResultTy)) { | |||
4373 | Canonical = | |||
4374 | getFunctionNoProtoType(getCanonicalFunctionResultType(ResultTy), Info); | |||
4375 | ||||
4376 | // Get the new insert position for the node we care about. | |||
4377 | FunctionNoProtoType *NewIP = | |||
4378 | FunctionNoProtoTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
4379 | assert(!NewIP && "Shouldn't be in the map!")(static_cast <bool> (!NewIP && "Shouldn't be in the map!" ) ? void (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\"" , "clang/lib/AST/ASTContext.cpp", 4379, __extension__ __PRETTY_FUNCTION__ )); (void)NewIP; | |||
4380 | } | |||
4381 | ||||
4382 | auto *New = new (*this, TypeAlignment) | |||
4383 | FunctionNoProtoType(ResultTy, Canonical, Info); | |||
4384 | Types.push_back(New); | |||
4385 | FunctionNoProtoTypes.InsertNode(New, InsertPos); | |||
4386 | return QualType(New, 0); | |||
4387 | } | |||
4388 | ||||
4389 | CanQualType | |||
4390 | ASTContext::getCanonicalFunctionResultType(QualType ResultType) const { | |||
4391 | CanQualType CanResultType = getCanonicalType(ResultType); | |||
4392 | ||||
4393 | // Canonical result types do not have ARC lifetime qualifiers. | |||
4394 | if (CanResultType.getQualifiers().hasObjCLifetime()) { | |||
4395 | Qualifiers Qs = CanResultType.getQualifiers(); | |||
4396 | Qs.removeObjCLifetime(); | |||
4397 | return CanQualType::CreateUnsafe( | |||
4398 | getQualifiedType(CanResultType.getUnqualifiedType(), Qs)); | |||
4399 | } | |||
4400 | ||||
4401 | return CanResultType; | |||
4402 | } | |||
4403 | ||||
4404 | static bool isCanonicalExceptionSpecification( | |||
4405 | const FunctionProtoType::ExceptionSpecInfo &ESI, bool NoexceptInType) { | |||
4406 | if (ESI.Type == EST_None) | |||
4407 | return true; | |||
4408 | if (!NoexceptInType) | |||
4409 | return false; | |||
4410 | ||||
4411 | // C++17 onwards: exception specification is part of the type, as a simple | |||
4412 | // boolean "can this function type throw". | |||
4413 | if (ESI.Type == EST_BasicNoexcept) | |||
4414 | return true; | |||
4415 | ||||
4416 | // A noexcept(expr) specification is (possibly) canonical if expr is | |||
4417 | // value-dependent. | |||
4418 | if (ESI.Type == EST_DependentNoexcept) | |||
4419 | return true; | |||
4420 | ||||
4421 | // A dynamic exception specification is canonical if it only contains pack | |||
4422 | // expansions (so we can't tell whether it's non-throwing) and all its | |||
4423 | // contained types are canonical. | |||
4424 | if (ESI.Type == EST_Dynamic) { | |||
4425 | bool AnyPackExpansions = false; | |||
4426 | for (QualType ET : ESI.Exceptions) { | |||
4427 | if (!ET.isCanonical()) | |||
4428 | return false; | |||
4429 | if (ET->getAs<PackExpansionType>()) | |||
4430 | AnyPackExpansions = true; | |||
4431 | } | |||
4432 | return AnyPackExpansions; | |||
4433 | } | |||
4434 | ||||
4435 | return false; | |||
4436 | } | |||
4437 | ||||
4438 | QualType ASTContext::getFunctionTypeInternal( | |||
4439 | QualType ResultTy, ArrayRef<QualType> ArgArray, | |||
4440 | const FunctionProtoType::ExtProtoInfo &EPI, bool OnlyWantCanonical) const { | |||
4441 | size_t NumArgs = ArgArray.size(); | |||
4442 | ||||
4443 | // Unique functions, to guarantee there is only one function of a particular | |||
4444 | // structure. | |||
4445 | llvm::FoldingSetNodeID ID; | |||
4446 | FunctionProtoType::Profile(ID, ResultTy, ArgArray.begin(), NumArgs, EPI, | |||
4447 | *this, true); | |||
4448 | ||||
4449 | QualType Canonical; | |||
4450 | bool Unique = false; | |||
4451 | ||||
4452 | void *InsertPos = nullptr; | |||
4453 | if (FunctionProtoType *FPT = | |||
4454 | FunctionProtoTypes.FindNodeOrInsertPos(ID, InsertPos)) { | |||
4455 | QualType Existing = QualType(FPT, 0); | |||
4456 | ||||
4457 | // If we find a pre-existing equivalent FunctionProtoType, we can just reuse | |||
4458 | // it so long as our exception specification doesn't contain a dependent | |||
4459 | // noexcept expression, or we're just looking for a canonical type. | |||
4460 | // Otherwise, we're going to need to create a type | |||
4461 | // sugar node to hold the concrete expression. | |||
4462 | if (OnlyWantCanonical || !isComputedNoexcept(EPI.ExceptionSpec.Type) || | |||
4463 | EPI.ExceptionSpec.NoexceptExpr == FPT->getNoexceptExpr()) | |||
4464 | return Existing; | |||
4465 | ||||
4466 | // We need a new type sugar node for this one, to hold the new noexcept | |||
4467 | // expression. We do no canonicalization here, but that's OK since we don't | |||
4468 | // expect to see the same noexcept expression much more than once. | |||
4469 | Canonical = getCanonicalType(Existing); | |||
4470 | Unique = true; | |||
4471 | } | |||
4472 | ||||
4473 | bool NoexceptInType = getLangOpts().CPlusPlus17; | |||
4474 | bool IsCanonicalExceptionSpec = | |||
4475 | isCanonicalExceptionSpecification(EPI.ExceptionSpec, NoexceptInType); | |||
4476 | ||||
4477 | // Determine whether the type being created is already canonical or not. | |||
4478 | bool isCanonical = !Unique && IsCanonicalExceptionSpec && | |||
4479 | isCanonicalResultType(ResultTy) && !EPI.HasTrailingReturn; | |||
4480 | for (unsigned i = 0; i != NumArgs && isCanonical; ++i) | |||
4481 | if (!ArgArray[i].isCanonicalAsParam()) | |||
4482 | isCanonical = false; | |||
4483 | ||||
4484 | if (OnlyWantCanonical) | |||
4485 | assert(isCanonical &&(static_cast <bool> (isCanonical && "given non-canonical parameters constructing canonical type" ) ? void (0) : __assert_fail ("isCanonical && \"given non-canonical parameters constructing canonical type\"" , "clang/lib/AST/ASTContext.cpp", 4486, __extension__ __PRETTY_FUNCTION__ )) | |||
4486 | "given non-canonical parameters constructing canonical type")(static_cast <bool> (isCanonical && "given non-canonical parameters constructing canonical type" ) ? void (0) : __assert_fail ("isCanonical && \"given non-canonical parameters constructing canonical type\"" , "clang/lib/AST/ASTContext.cpp", 4486, __extension__ __PRETTY_FUNCTION__ )); | |||
4487 | ||||
4488 | // If this type isn't canonical, get the canonical version of it if we don't | |||
4489 | // already have it. The exception spec is only partially part of the | |||
4490 | // canonical type, and only in C++17 onwards. | |||
4491 | if (!isCanonical && Canonical.isNull()) { | |||
4492 | SmallVector<QualType, 16> CanonicalArgs; | |||
4493 | CanonicalArgs.reserve(NumArgs); | |||
4494 | for (unsigned i = 0; i != NumArgs; ++i) | |||
4495 | CanonicalArgs.push_back(getCanonicalParamType(ArgArray[i])); | |||
4496 | ||||
4497 | llvm::SmallVector<QualType, 8> ExceptionTypeStorage; | |||
4498 | FunctionProtoType::ExtProtoInfo CanonicalEPI = EPI; | |||
4499 | CanonicalEPI.HasTrailingReturn = false; | |||
4500 | ||||
4501 | if (IsCanonicalExceptionSpec) { | |||
4502 | // Exception spec is already OK. | |||
4503 | } else if (NoexceptInType) { | |||
4504 | switch (EPI.ExceptionSpec.Type) { | |||
4505 | case EST_Unparsed: case EST_Unevaluated: case EST_Uninstantiated: | |||
4506 | // We don't know yet. It shouldn't matter what we pick here; no-one | |||
4507 | // should ever look at this. | |||
4508 | [[fallthrough]]; | |||
4509 | case EST_None: case EST_MSAny: case EST_NoexceptFalse: | |||
4510 | CanonicalEPI.ExceptionSpec.Type = EST_None; | |||
4511 | break; | |||
4512 | ||||
4513 | // A dynamic exception specification is almost always "not noexcept", | |||
4514 | // with the exception that a pack expansion might expand to no types. | |||
4515 | case EST_Dynamic: { | |||
4516 | bool AnyPacks = false; | |||
4517 | for (QualType ET : EPI.ExceptionSpec.Exceptions) { | |||
4518 | if (ET->getAs<PackExpansionType>()) | |||
4519 | AnyPacks = true; | |||
4520 | ExceptionTypeStorage.push_back(getCanonicalType(ET)); | |||
4521 | } | |||
4522 | if (!AnyPacks) | |||
4523 | CanonicalEPI.ExceptionSpec.Type = EST_None; | |||
4524 | else { | |||
4525 | CanonicalEPI.ExceptionSpec.Type = EST_Dynamic; | |||
4526 | CanonicalEPI.ExceptionSpec.Exceptions = ExceptionTypeStorage; | |||
4527 | } | |||
4528 | break; | |||
4529 | } | |||
4530 | ||||
4531 | case EST_DynamicNone: | |||
4532 | case EST_BasicNoexcept: | |||
4533 | case EST_NoexceptTrue: | |||
4534 | case EST_NoThrow: | |||
4535 | CanonicalEPI.ExceptionSpec.Type = EST_BasicNoexcept; | |||
4536 | break; | |||
4537 | ||||
4538 | case EST_DependentNoexcept: | |||
4539 | llvm_unreachable("dependent noexcept is already canonical")::llvm::llvm_unreachable_internal("dependent noexcept is already canonical" , "clang/lib/AST/ASTContext.cpp", 4539); | |||
4540 | } | |||
4541 | } else { | |||
4542 | CanonicalEPI.ExceptionSpec = FunctionProtoType::ExceptionSpecInfo(); | |||
4543 | } | |||
4544 | ||||
4545 | // Adjust the canonical function result type. | |||
4546 | CanQualType CanResultTy = getCanonicalFunctionResultType(ResultTy); | |||
4547 | Canonical = | |||
4548 | getFunctionTypeInternal(CanResultTy, CanonicalArgs, CanonicalEPI, true); | |||
4549 | ||||
4550 | // Get the new insert position for the node we care about. | |||
4551 | FunctionProtoType *NewIP = | |||
4552 | FunctionProtoTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
4553 | assert(!NewIP && "Shouldn't be in the map!")(static_cast <bool> (!NewIP && "Shouldn't be in the map!" ) ? void (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\"" , "clang/lib/AST/ASTContext.cpp", 4553, __extension__ __PRETTY_FUNCTION__ )); (void)NewIP; | |||
4554 | } | |||
4555 | ||||
4556 | // Compute the needed size to hold this FunctionProtoType and the | |||
4557 | // various trailing objects. | |||
4558 | auto ESH = FunctionProtoType::getExceptionSpecSize( | |||
4559 | EPI.ExceptionSpec.Type, EPI.ExceptionSpec.Exceptions.size()); | |||
4560 | size_t Size = FunctionProtoType::totalSizeToAlloc< | |||
4561 | QualType, SourceLocation, FunctionType::FunctionTypeExtraBitfields, | |||
4562 | FunctionType::ExceptionType, Expr *, FunctionDecl *, | |||
4563 | FunctionProtoType::ExtParameterInfo, Qualifiers>( | |||
4564 | NumArgs, EPI.Variadic, EPI.requiresFunctionProtoTypeExtraBitfields(), | |||
4565 | ESH.NumExceptionType, ESH.NumExprPtr, ESH.NumFunctionDeclPtr, | |||
4566 | EPI.ExtParameterInfos ? NumArgs : 0, | |||
4567 | EPI.TypeQuals.hasNonFastQualifiers() ? 1 : 0); | |||
4568 | ||||
4569 | auto *FTP = (FunctionProtoType *)Allocate(Size, TypeAlignment); | |||
4570 | FunctionProtoType::ExtProtoInfo newEPI = EPI; | |||
4571 | new (FTP) FunctionProtoType(ResultTy, ArgArray, Canonical, newEPI); | |||
4572 | Types.push_back(FTP); | |||
4573 | if (!Unique) | |||
4574 | FunctionProtoTypes.InsertNode(FTP, InsertPos); | |||
4575 | return QualType(FTP, 0); | |||
4576 | } | |||
4577 | ||||
4578 | QualType ASTContext::getPipeType(QualType T, bool ReadOnly) const { | |||
4579 | llvm::FoldingSetNodeID ID; | |||
4580 | PipeType::Profile(ID, T, ReadOnly); | |||
4581 | ||||
4582 | void *InsertPos = nullptr; | |||
4583 | if (PipeType *PT = PipeTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
4584 | return QualType(PT, 0); | |||
4585 | ||||
4586 | // If the pipe element type isn't canonical, this won't be a canonical type | |||
4587 | // either, so fill in the canonical type field. | |||
4588 | QualType Canonical; | |||
4589 | if (!T.isCanonical()) { | |||
4590 | Canonical = getPipeType(getCanonicalType(T), ReadOnly); | |||
4591 | ||||
4592 | // Get the new insert position for the node we care about. | |||
4593 | PipeType *NewIP = PipeTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
4594 | assert(!NewIP && "Shouldn't be in the map!")(static_cast <bool> (!NewIP && "Shouldn't be in the map!" ) ? void (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\"" , "clang/lib/AST/ASTContext.cpp", 4594, __extension__ __PRETTY_FUNCTION__ )); | |||
4595 | (void)NewIP; | |||
4596 | } | |||
4597 | auto *New = new (*this, TypeAlignment) PipeType(T, Canonical, ReadOnly); | |||
4598 | Types.push_back(New); | |||
4599 | PipeTypes.InsertNode(New, InsertPos); | |||
4600 | return QualType(New, 0); | |||
4601 | } | |||
4602 | ||||
4603 | QualType ASTContext::adjustStringLiteralBaseType(QualType Ty) const { | |||
4604 | // OpenCL v1.1 s6.5.3: a string literal is in the constant address space. | |||
4605 | return LangOpts.OpenCL ? getAddrSpaceQualType(Ty, LangAS::opencl_constant) | |||
4606 | : Ty; | |||
4607 | } | |||
4608 | ||||
4609 | QualType ASTContext::getReadPipeType(QualType T) const { | |||
4610 | return getPipeType(T, true); | |||
4611 | } | |||
4612 | ||||
4613 | QualType ASTContext::getWritePipeType(QualType T) const { | |||
4614 | return getPipeType(T, false); | |||
4615 | } | |||
4616 | ||||
4617 | QualType ASTContext::getBitIntType(bool IsUnsigned, unsigned NumBits) const { | |||
4618 | llvm::FoldingSetNodeID ID; | |||
4619 | BitIntType::Profile(ID, IsUnsigned, NumBits); | |||
4620 | ||||
4621 | void *InsertPos = nullptr; | |||
4622 | if (BitIntType *EIT = BitIntTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
4623 | return QualType(EIT, 0); | |||
4624 | ||||
4625 | auto *New = new (*this, TypeAlignment) BitIntType(IsUnsigned, NumBits); | |||
4626 | BitIntTypes.InsertNode(New, InsertPos); | |||
4627 | Types.push_back(New); | |||
4628 | return QualType(New, 0); | |||
4629 | } | |||
4630 | ||||
4631 | QualType ASTContext::getDependentBitIntType(bool IsUnsigned, | |||
4632 | Expr *NumBitsExpr) const { | |||
4633 | assert(NumBitsExpr->isInstantiationDependent() && "Only good for dependent")(static_cast <bool> (NumBitsExpr->isInstantiationDependent () && "Only good for dependent") ? void (0) : __assert_fail ("NumBitsExpr->isInstantiationDependent() && \"Only good for dependent\"" , "clang/lib/AST/ASTContext.cpp", 4633, __extension__ __PRETTY_FUNCTION__ )); | |||
4634 | llvm::FoldingSetNodeID ID; | |||
4635 | DependentBitIntType::Profile(ID, *this, IsUnsigned, NumBitsExpr); | |||
4636 | ||||
4637 | void *InsertPos = nullptr; | |||
4638 | if (DependentBitIntType *Existing = | |||
4639 | DependentBitIntTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
4640 | return QualType(Existing, 0); | |||
4641 | ||||
4642 | auto *New = new (*this, TypeAlignment) | |||
4643 | DependentBitIntType(*this, IsUnsigned, NumBitsExpr); | |||
4644 | DependentBitIntTypes.InsertNode(New, InsertPos); | |||
4645 | ||||
4646 | Types.push_back(New); | |||
4647 | return QualType(New, 0); | |||
4648 | } | |||
4649 | ||||
4650 | #ifndef NDEBUG | |||
4651 | static bool NeedsInjectedClassNameType(const RecordDecl *D) { | |||
4652 | if (!isa<CXXRecordDecl>(D)) return false; | |||
4653 | const auto *RD = cast<CXXRecordDecl>(D); | |||
4654 | if (isa<ClassTemplatePartialSpecializationDecl>(RD)) | |||
4655 | return true; | |||
4656 | if (RD->getDescribedClassTemplate() && | |||
4657 | !isa<ClassTemplateSpecializationDecl>(RD)) | |||
4658 | return true; | |||
4659 | return false; | |||
4660 | } | |||
4661 | #endif | |||
4662 | ||||
4663 | /// getInjectedClassNameType - Return the unique reference to the | |||
4664 | /// injected class name type for the specified templated declaration. | |||
4665 | QualType ASTContext::getInjectedClassNameType(CXXRecordDecl *Decl, | |||
4666 | QualType TST) const { | |||
4667 | assert(NeedsInjectedClassNameType(Decl))(static_cast <bool> (NeedsInjectedClassNameType(Decl)) ? void (0) : __assert_fail ("NeedsInjectedClassNameType(Decl)" , "clang/lib/AST/ASTContext.cpp", 4667, __extension__ __PRETTY_FUNCTION__ )); | |||
4668 | if (Decl->TypeForDecl) { | |||
4669 | assert(isa<InjectedClassNameType>(Decl->TypeForDecl))(static_cast <bool> (isa<InjectedClassNameType>(Decl ->TypeForDecl)) ? void (0) : __assert_fail ("isa<InjectedClassNameType>(Decl->TypeForDecl)" , "clang/lib/AST/ASTContext.cpp", 4669, __extension__ __PRETTY_FUNCTION__ )); | |||
4670 | } else if (CXXRecordDecl *PrevDecl = Decl->getPreviousDecl()) { | |||
4671 | assert(PrevDecl->TypeForDecl && "previous declaration has no type")(static_cast <bool> (PrevDecl->TypeForDecl && "previous declaration has no type") ? void (0) : __assert_fail ("PrevDecl->TypeForDecl && \"previous declaration has no type\"" , "clang/lib/AST/ASTContext.cpp", 4671, __extension__ __PRETTY_FUNCTION__ )); | |||
4672 | Decl->TypeForDecl = PrevDecl->TypeForDecl; | |||
4673 | assert(isa<InjectedClassNameType>(Decl->TypeForDecl))(static_cast <bool> (isa<InjectedClassNameType>(Decl ->TypeForDecl)) ? void (0) : __assert_fail ("isa<InjectedClassNameType>(Decl->TypeForDecl)" , "clang/lib/AST/ASTContext.cpp", 4673, __extension__ __PRETTY_FUNCTION__ )); | |||
4674 | } else { | |||
4675 | Type *newType = | |||
4676 | new (*this, TypeAlignment) InjectedClassNameType(Decl, TST); | |||
4677 | Decl->TypeForDecl = newType; | |||
4678 | Types.push_back(newType); | |||
4679 | } | |||
4680 | return QualType(Decl->TypeForDecl, 0); | |||
4681 | } | |||
4682 | ||||
4683 | /// getTypeDeclType - Return the unique reference to the type for the | |||
4684 | /// specified type declaration. | |||
4685 | QualType ASTContext::getTypeDeclTypeSlow(const TypeDecl *Decl) const { | |||
4686 | assert(Decl && "Passed null for Decl param")(static_cast <bool> (Decl && "Passed null for Decl param" ) ? void (0) : __assert_fail ("Decl && \"Passed null for Decl param\"" , "clang/lib/AST/ASTContext.cpp", 4686, __extension__ __PRETTY_FUNCTION__ )); | |||
4687 | assert(!Decl->TypeForDecl && "TypeForDecl present in slow case")(static_cast <bool> (!Decl->TypeForDecl && "TypeForDecl present in slow case" ) ? void (0) : __assert_fail ("!Decl->TypeForDecl && \"TypeForDecl present in slow case\"" , "clang/lib/AST/ASTContext.cpp", 4687, __extension__ __PRETTY_FUNCTION__ )); | |||
4688 | ||||
4689 | if (const auto *Typedef = dyn_cast<TypedefNameDecl>(Decl)) | |||
4690 | return getTypedefType(Typedef); | |||
4691 | ||||
4692 | assert(!isa<TemplateTypeParmDecl>(Decl) &&(static_cast <bool> (!isa<TemplateTypeParmDecl>(Decl ) && "Template type parameter types are always available." ) ? void (0) : __assert_fail ("!isa<TemplateTypeParmDecl>(Decl) && \"Template type parameter types are always available.\"" , "clang/lib/AST/ASTContext.cpp", 4693, __extension__ __PRETTY_FUNCTION__ )) | |||
4693 | "Template type parameter types are always available.")(static_cast <bool> (!isa<TemplateTypeParmDecl>(Decl ) && "Template type parameter types are always available." ) ? void (0) : __assert_fail ("!isa<TemplateTypeParmDecl>(Decl) && \"Template type parameter types are always available.\"" , "clang/lib/AST/ASTContext.cpp", 4693, __extension__ __PRETTY_FUNCTION__ )); | |||
4694 | ||||
4695 | if (const auto *Record = dyn_cast<RecordDecl>(Decl)) { | |||
4696 | assert(Record->isFirstDecl() && "struct/union has previous declaration")(static_cast <bool> (Record->isFirstDecl() && "struct/union has previous declaration") ? void (0) : __assert_fail ("Record->isFirstDecl() && \"struct/union has previous declaration\"" , "clang/lib/AST/ASTContext.cpp", 4696, __extension__ __PRETTY_FUNCTION__ )); | |||
4697 | assert(!NeedsInjectedClassNameType(Record))(static_cast <bool> (!NeedsInjectedClassNameType(Record )) ? void (0) : __assert_fail ("!NeedsInjectedClassNameType(Record)" , "clang/lib/AST/ASTContext.cpp", 4697, __extension__ __PRETTY_FUNCTION__ )); | |||
4698 | return getRecordType(Record); | |||
4699 | } else if (const auto *Enum = dyn_cast<EnumDecl>(Decl)) { | |||
4700 | assert(Enum->isFirstDecl() && "enum has previous declaration")(static_cast <bool> (Enum->isFirstDecl() && "enum has previous declaration" ) ? void (0) : __assert_fail ("Enum->isFirstDecl() && \"enum has previous declaration\"" , "clang/lib/AST/ASTContext.cpp", 4700, __extension__ __PRETTY_FUNCTION__ )); | |||
4701 | return getEnumType(Enum); | |||
4702 | } else if (const auto *Using = dyn_cast<UnresolvedUsingTypenameDecl>(Decl)) { | |||
4703 | return getUnresolvedUsingType(Using); | |||
4704 | } else | |||
4705 | llvm_unreachable("TypeDecl without a type?")::llvm::llvm_unreachable_internal("TypeDecl without a type?", "clang/lib/AST/ASTContext.cpp", 4705); | |||
4706 | ||||
4707 | return QualType(Decl->TypeForDecl, 0); | |||
4708 | } | |||
4709 | ||||
4710 | /// getTypedefType - Return the unique reference to the type for the | |||
4711 | /// specified typedef name decl. | |||
4712 | QualType ASTContext::getTypedefType(const TypedefNameDecl *Decl, | |||
4713 | QualType Underlying) const { | |||
4714 | if (!Decl->TypeForDecl) { | |||
4715 | if (Underlying.isNull()) | |||
4716 | Underlying = Decl->getUnderlyingType(); | |||
4717 | auto *NewType = new (*this, TypeAlignment) TypedefType( | |||
4718 | Type::Typedef, Decl, QualType(), getCanonicalType(Underlying)); | |||
4719 | Decl->TypeForDecl = NewType; | |||
4720 | Types.push_back(NewType); | |||
4721 | return QualType(NewType, 0); | |||
4722 | } | |||
4723 | if (Underlying.isNull() || Decl->getUnderlyingType() == Underlying) | |||
4724 | return QualType(Decl->TypeForDecl, 0); | |||
4725 | assert(hasSameType(Decl->getUnderlyingType(), Underlying))(static_cast <bool> (hasSameType(Decl->getUnderlyingType (), Underlying)) ? void (0) : __assert_fail ("hasSameType(Decl->getUnderlyingType(), Underlying)" , "clang/lib/AST/ASTContext.cpp", 4725, __extension__ __PRETTY_FUNCTION__ )); | |||
4726 | ||||
4727 | llvm::FoldingSetNodeID ID; | |||
4728 | TypedefType::Profile(ID, Decl, Underlying); | |||
4729 | ||||
4730 | void *InsertPos = nullptr; | |||
4731 | if (TypedefType *T = TypedefTypes.FindNodeOrInsertPos(ID, InsertPos)) { | |||
4732 | assert(!T->typeMatchesDecl() &&(static_cast <bool> (!T->typeMatchesDecl() && "non-divergent case should be handled with TypeDecl") ? void (0) : __assert_fail ("!T->typeMatchesDecl() && \"non-divergent case should be handled with TypeDecl\"" , "clang/lib/AST/ASTContext.cpp", 4733, __extension__ __PRETTY_FUNCTION__ )) | |||
4733 | "non-divergent case should be handled with TypeDecl")(static_cast <bool> (!T->typeMatchesDecl() && "non-divergent case should be handled with TypeDecl") ? void (0) : __assert_fail ("!T->typeMatchesDecl() && \"non-divergent case should be handled with TypeDecl\"" , "clang/lib/AST/ASTContext.cpp", 4733, __extension__ __PRETTY_FUNCTION__ )); | |||
4734 | return QualType(T, 0); | |||
4735 | } | |||
4736 | ||||
4737 | void *Mem = | |||
4738 | Allocate(TypedefType::totalSizeToAlloc<QualType>(true), TypeAlignment); | |||
4739 | auto *NewType = new (Mem) TypedefType(Type::Typedef, Decl, Underlying, | |||
4740 | getCanonicalType(Underlying)); | |||
4741 | TypedefTypes.InsertNode(NewType, InsertPos); | |||
4742 | Types.push_back(NewType); | |||
4743 | return QualType(NewType, 0); | |||
4744 | } | |||
4745 | ||||
4746 | QualType ASTContext::getUsingType(const UsingShadowDecl *Found, | |||
4747 | QualType Underlying) const { | |||
4748 | llvm::FoldingSetNodeID ID; | |||
4749 | UsingType::Profile(ID, Found, Underlying); | |||
4750 | ||||
4751 | void *InsertPos = nullptr; | |||
4752 | if (UsingType *T = UsingTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
4753 | return QualType(T, 0); | |||
4754 | ||||
4755 | const Type *TypeForDecl = | |||
4756 | cast<TypeDecl>(Found->getTargetDecl())->getTypeForDecl(); | |||
4757 | ||||
4758 | assert(!Underlying.hasLocalQualifiers())(static_cast <bool> (!Underlying.hasLocalQualifiers()) ? void (0) : __assert_fail ("!Underlying.hasLocalQualifiers()" , "clang/lib/AST/ASTContext.cpp", 4758, __extension__ __PRETTY_FUNCTION__ )); | |||
4759 | QualType Canon = Underlying->getCanonicalTypeInternal(); | |||
4760 | assert(TypeForDecl->getCanonicalTypeInternal() == Canon)(static_cast <bool> (TypeForDecl->getCanonicalTypeInternal () == Canon) ? void (0) : __assert_fail ("TypeForDecl->getCanonicalTypeInternal() == Canon" , "clang/lib/AST/ASTContext.cpp", 4760, __extension__ __PRETTY_FUNCTION__ )); | |||
4761 | ||||
4762 | if (Underlying.getTypePtr() == TypeForDecl) | |||
4763 | Underlying = QualType(); | |||
4764 | void *Mem = | |||
4765 | Allocate(UsingType::totalSizeToAlloc<QualType>(!Underlying.isNull()), | |||
4766 | TypeAlignment); | |||
4767 | UsingType *NewType = new (Mem) UsingType(Found, Underlying, Canon); | |||
4768 | Types.push_back(NewType); | |||
4769 | UsingTypes.InsertNode(NewType, InsertPos); | |||
4770 | return QualType(NewType, 0); | |||
4771 | } | |||
4772 | ||||
4773 | QualType ASTContext::getRecordType(const RecordDecl *Decl) const { | |||
4774 | if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); | |||
4775 | ||||
4776 | if (const RecordDecl *PrevDecl = Decl->getPreviousDecl()) | |||
4777 | if (PrevDecl->TypeForDecl) | |||
4778 | return QualType(Decl->TypeForDecl = PrevDecl->TypeForDecl, 0); | |||
4779 | ||||
4780 | auto *newType = new (*this, TypeAlignment) RecordType(Decl); | |||
4781 | Decl->TypeForDecl = newType; | |||
4782 | Types.push_back(newType); | |||
4783 | return QualType(newType, 0); | |||
4784 | } | |||
4785 | ||||
4786 | QualType ASTContext::getEnumType(const EnumDecl *Decl) const { | |||
4787 | if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); | |||
4788 | ||||
4789 | if (const EnumDecl *PrevDecl = Decl->getPreviousDecl()) | |||
4790 | if (PrevDecl->TypeForDecl) | |||
4791 | return QualType(Decl->TypeForDecl = PrevDecl->TypeForDecl, 0); | |||
4792 | ||||
4793 | auto *newType = new (*this, TypeAlignment) EnumType(Decl); | |||
4794 | Decl->TypeForDecl = newType; | |||
4795 | Types.push_back(newType); | |||
4796 | return QualType(newType, 0); | |||
4797 | } | |||
4798 | ||||
4799 | QualType ASTContext::getUnresolvedUsingType( | |||
4800 | const UnresolvedUsingTypenameDecl *Decl) const { | |||
4801 | if (Decl->TypeForDecl) | |||
4802 | return QualType(Decl->TypeForDecl, 0); | |||
4803 | ||||
4804 | if (const UnresolvedUsingTypenameDecl *CanonicalDecl = | |||
4805 | Decl->getCanonicalDecl()) | |||
4806 | if (CanonicalDecl->TypeForDecl) | |||
4807 | return QualType(Decl->TypeForDecl = CanonicalDecl->TypeForDecl, 0); | |||
4808 | ||||
4809 | Type *newType = new (*this, TypeAlignment) UnresolvedUsingType(Decl); | |||
4810 | Decl->TypeForDecl = newType; | |||
4811 | Types.push_back(newType); | |||
4812 | return QualType(newType, 0); | |||
4813 | } | |||
4814 | ||||
4815 | QualType ASTContext::getAttributedType(attr::Kind attrKind, | |||
4816 | QualType modifiedType, | |||
4817 | QualType equivalentType) const { | |||
4818 | llvm::FoldingSetNodeID id; | |||
4819 | AttributedType::Profile(id, attrKind, modifiedType, equivalentType); | |||
4820 | ||||
4821 | void *insertPos = nullptr; | |||
4822 | AttributedType *type = AttributedTypes.FindNodeOrInsertPos(id, insertPos); | |||
4823 | if (type) return QualType(type, 0); | |||
4824 | ||||
4825 | QualType canon = getCanonicalType(equivalentType); | |||
4826 | type = new (*this, TypeAlignment) | |||
4827 | AttributedType(canon, attrKind, modifiedType, equivalentType); | |||
4828 | ||||
4829 | Types.push_back(type); | |||
4830 | AttributedTypes.InsertNode(type, insertPos); | |||
4831 | ||||
4832 | return QualType(type, 0); | |||
4833 | } | |||
4834 | ||||
4835 | QualType ASTContext::getBTFTagAttributedType(const BTFTypeTagAttr *BTFAttr, | |||
4836 | QualType Wrapped) { | |||
4837 | llvm::FoldingSetNodeID ID; | |||
4838 | BTFTagAttributedType::Profile(ID, Wrapped, BTFAttr); | |||
4839 | ||||
4840 | void *InsertPos = nullptr; | |||
4841 | BTFTagAttributedType *Ty = | |||
4842 | BTFTagAttributedTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
4843 | if (Ty) | |||
4844 | return QualType(Ty, 0); | |||
4845 | ||||
4846 | QualType Canon = getCanonicalType(Wrapped); | |||
4847 | Ty = new (*this, TypeAlignment) BTFTagAttributedType(Canon, Wrapped, BTFAttr); | |||
4848 | ||||
4849 | Types.push_back(Ty); | |||
4850 | BTFTagAttributedTypes.InsertNode(Ty, InsertPos); | |||
4851 | ||||
4852 | return QualType(Ty, 0); | |||
4853 | } | |||
4854 | ||||
4855 | /// Retrieve a substitution-result type. | |||
4856 | QualType ASTContext::getSubstTemplateTypeParmType( | |||
4857 | QualType Replacement, Decl *AssociatedDecl, unsigned Index, | |||
4858 | std::optional<unsigned> PackIndex) const { | |||
4859 | llvm::FoldingSetNodeID ID; | |||
4860 | SubstTemplateTypeParmType::Profile(ID, Replacement, AssociatedDecl, Index, | |||
4861 | PackIndex); | |||
4862 | void *InsertPos = nullptr; | |||
4863 | SubstTemplateTypeParmType *SubstParm = | |||
4864 | SubstTemplateTypeParmTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
4865 | ||||
4866 | if (!SubstParm) { | |||
4867 | void *Mem = Allocate(SubstTemplateTypeParmType::totalSizeToAlloc<QualType>( | |||
4868 | !Replacement.isCanonical()), | |||
4869 | TypeAlignment); | |||
4870 | SubstParm = new (Mem) SubstTemplateTypeParmType(Replacement, AssociatedDecl, | |||
4871 | Index, PackIndex); | |||
4872 | Types.push_back(SubstParm); | |||
4873 | SubstTemplateTypeParmTypes.InsertNode(SubstParm, InsertPos); | |||
4874 | } | |||
4875 | ||||
4876 | return QualType(SubstParm, 0); | |||
4877 | } | |||
4878 | ||||
4879 | /// Retrieve a | |||
4880 | QualType | |||
4881 | ASTContext::getSubstTemplateTypeParmPackType(Decl *AssociatedDecl, | |||
4882 | unsigned Index, bool Final, | |||
4883 | const TemplateArgument &ArgPack) { | |||
4884 | #ifndef NDEBUG | |||
4885 | for (const auto &P : ArgPack.pack_elements()) | |||
4886 | assert(P.getKind() == TemplateArgument::Type && "Pack contains a non-type")(static_cast <bool> (P.getKind() == TemplateArgument::Type && "Pack contains a non-type") ? void (0) : __assert_fail ("P.getKind() == TemplateArgument::Type && \"Pack contains a non-type\"" , "clang/lib/AST/ASTContext.cpp", 4886, __extension__ __PRETTY_FUNCTION__ )); | |||
4887 | #endif | |||
4888 | ||||
4889 | llvm::FoldingSetNodeID ID; | |||
4890 | SubstTemplateTypeParmPackType::Profile(ID, AssociatedDecl, Index, Final, | |||
4891 | ArgPack); | |||
4892 | void *InsertPos = nullptr; | |||
4893 | if (SubstTemplateTypeParmPackType *SubstParm = | |||
4894 | SubstTemplateTypeParmPackTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
4895 | return QualType(SubstParm, 0); | |||
4896 | ||||
4897 | QualType Canon; | |||
4898 | { | |||
4899 | TemplateArgument CanonArgPack = getCanonicalTemplateArgument(ArgPack); | |||
4900 | if (!AssociatedDecl->isCanonicalDecl() || | |||
4901 | !CanonArgPack.structurallyEquals(ArgPack)) { | |||
4902 | Canon = getSubstTemplateTypeParmPackType( | |||
4903 | AssociatedDecl->getCanonicalDecl(), Index, Final, CanonArgPack); | |||
4904 | [[maybe_unused]] const auto *Nothing = | |||
4905 | SubstTemplateTypeParmPackTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
4906 | assert(!Nothing)(static_cast <bool> (!Nothing) ? void (0) : __assert_fail ("!Nothing", "clang/lib/AST/ASTContext.cpp", 4906, __extension__ __PRETTY_FUNCTION__)); | |||
4907 | } | |||
4908 | } | |||
4909 | ||||
4910 | auto *SubstParm = new (*this, TypeAlignment) SubstTemplateTypeParmPackType( | |||
4911 | Canon, AssociatedDecl, Index, Final, ArgPack); | |||
4912 | Types.push_back(SubstParm); | |||
4913 | SubstTemplateTypeParmPackTypes.InsertNode(SubstParm, InsertPos); | |||
4914 | return QualType(SubstParm, 0); | |||
4915 | } | |||
4916 | ||||
4917 | /// Retrieve the template type parameter type for a template | |||
4918 | /// parameter or parameter pack with the given depth, index, and (optionally) | |||
4919 | /// name. | |||
4920 | QualType ASTContext::getTemplateTypeParmType(unsigned Depth, unsigned Index, | |||
4921 | bool ParameterPack, | |||
4922 | TemplateTypeParmDecl *TTPDecl) const { | |||
4923 | llvm::FoldingSetNodeID ID; | |||
4924 | TemplateTypeParmType::Profile(ID, Depth, Index, ParameterPack, TTPDecl); | |||
4925 | void *InsertPos = nullptr; | |||
4926 | TemplateTypeParmType *TypeParm | |||
4927 | = TemplateTypeParmTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
4928 | ||||
4929 | if (TypeParm) | |||
4930 | return QualType(TypeParm, 0); | |||
4931 | ||||
4932 | if (TTPDecl) { | |||
4933 | QualType Canon = getTemplateTypeParmType(Depth, Index, ParameterPack); | |||
4934 | TypeParm = new (*this, TypeAlignment) TemplateTypeParmType(TTPDecl, Canon); | |||
4935 | ||||
4936 | TemplateTypeParmType *TypeCheck | |||
4937 | = TemplateTypeParmTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
4938 | assert(!TypeCheck && "Template type parameter canonical type broken")(static_cast <bool> (!TypeCheck && "Template type parameter canonical type broken" ) ? void (0) : __assert_fail ("!TypeCheck && \"Template type parameter canonical type broken\"" , "clang/lib/AST/ASTContext.cpp", 4938, __extension__ __PRETTY_FUNCTION__ )); | |||
4939 | (void)TypeCheck; | |||
4940 | } else | |||
4941 | TypeParm = new (*this, TypeAlignment) | |||
4942 | TemplateTypeParmType(Depth, Index, ParameterPack); | |||
4943 | ||||
4944 | Types.push_back(TypeParm); | |||
4945 | TemplateTypeParmTypes.InsertNode(TypeParm, InsertPos); | |||
4946 | ||||
4947 | return QualType(TypeParm, 0); | |||
4948 | } | |||
4949 | ||||
4950 | TypeSourceInfo * | |||
4951 | ASTContext::getTemplateSpecializationTypeInfo(TemplateName Name, | |||
4952 | SourceLocation NameLoc, | |||
4953 | const TemplateArgumentListInfo &Args, | |||
4954 | QualType Underlying) const { | |||
4955 | assert(!Name.getAsDependentTemplateName() &&(static_cast <bool> (!Name.getAsDependentTemplateName() && "No dependent template names here!") ? void (0) : __assert_fail ("!Name.getAsDependentTemplateName() && \"No dependent template names here!\"" , "clang/lib/AST/ASTContext.cpp", 4956, __extension__ __PRETTY_FUNCTION__ )) | |||
4956 | "No dependent template names here!")(static_cast <bool> (!Name.getAsDependentTemplateName() && "No dependent template names here!") ? void (0) : __assert_fail ("!Name.getAsDependentTemplateName() && \"No dependent template names here!\"" , "clang/lib/AST/ASTContext.cpp", 4956, __extension__ __PRETTY_FUNCTION__ )); | |||
4957 | QualType TST = | |||
4958 | getTemplateSpecializationType(Name, Args.arguments(), Underlying); | |||
4959 | ||||
4960 | TypeSourceInfo *DI = CreateTypeSourceInfo(TST); | |||
4961 | TemplateSpecializationTypeLoc TL = | |||
4962 | DI->getTypeLoc().castAs<TemplateSpecializationTypeLoc>(); | |||
4963 | TL.setTemplateKeywordLoc(SourceLocation()); | |||
4964 | TL.setTemplateNameLoc(NameLoc); | |||
4965 | TL.setLAngleLoc(Args.getLAngleLoc()); | |||
4966 | TL.setRAngleLoc(Args.getRAngleLoc()); | |||
4967 | for (unsigned i = 0, e = TL.getNumArgs(); i != e; ++i) | |||
4968 | TL.setArgLocInfo(i, Args[i].getLocInfo()); | |||
4969 | return DI; | |||
4970 | } | |||
4971 | ||||
4972 | QualType | |||
4973 | ASTContext::getTemplateSpecializationType(TemplateName Template, | |||
4974 | ArrayRef<TemplateArgumentLoc> Args, | |||
4975 | QualType Underlying) const { | |||
4976 | assert(!Template.getAsDependentTemplateName() &&(static_cast <bool> (!Template.getAsDependentTemplateName () && "No dependent template names here!") ? void (0) : __assert_fail ("!Template.getAsDependentTemplateName() && \"No dependent template names here!\"" , "clang/lib/AST/ASTContext.cpp", 4977, __extension__ __PRETTY_FUNCTION__ )) | |||
4977 | "No dependent template names here!")(static_cast <bool> (!Template.getAsDependentTemplateName () && "No dependent template names here!") ? void (0) : __assert_fail ("!Template.getAsDependentTemplateName() && \"No dependent template names here!\"" , "clang/lib/AST/ASTContext.cpp", 4977, __extension__ __PRETTY_FUNCTION__ )); | |||
4978 | ||||
4979 | SmallVector<TemplateArgument, 4> ArgVec; | |||
4980 | ArgVec.reserve(Args.size()); | |||
4981 | for (const TemplateArgumentLoc &Arg : Args) | |||
4982 | ArgVec.push_back(Arg.getArgument()); | |||
4983 | ||||
4984 | return getTemplateSpecializationType(Template, ArgVec, Underlying); | |||
4985 | } | |||
4986 | ||||
4987 | #ifndef NDEBUG | |||
4988 | static bool hasAnyPackExpansions(ArrayRef<TemplateArgument> Args) { | |||
4989 | for (const TemplateArgument &Arg : Args) | |||
4990 | if (Arg.isPackExpansion()) | |||
4991 | return true; | |||
4992 | ||||
4993 | return true; | |||
4994 | } | |||
4995 | #endif | |||
4996 | ||||
4997 | QualType | |||
4998 | ASTContext::getTemplateSpecializationType(TemplateName Template, | |||
4999 | ArrayRef<TemplateArgument> Args, | |||
5000 | QualType Underlying) const { | |||
5001 | assert(!Template.getAsDependentTemplateName() &&(static_cast <bool> (!Template.getAsDependentTemplateName () && "No dependent template names here!") ? void (0) : __assert_fail ("!Template.getAsDependentTemplateName() && \"No dependent template names here!\"" , "clang/lib/AST/ASTContext.cpp", 5002, __extension__ __PRETTY_FUNCTION__ )) | |||
5002 | "No dependent template names here!")(static_cast <bool> (!Template.getAsDependentTemplateName () && "No dependent template names here!") ? void (0) : __assert_fail ("!Template.getAsDependentTemplateName() && \"No dependent template names here!\"" , "clang/lib/AST/ASTContext.cpp", 5002, __extension__ __PRETTY_FUNCTION__ )); | |||
5003 | // Look through qualified template names. | |||
5004 | if (QualifiedTemplateName *QTN = Template.getAsQualifiedTemplateName()) | |||
5005 | Template = QTN->getUnderlyingTemplate(); | |||
5006 | ||||
5007 | const auto *TD = Template.getAsTemplateDecl(); | |||
5008 | bool IsTypeAlias = TD && TD->isTypeAlias(); | |||
5009 | QualType CanonType; | |||
5010 | if (!Underlying.isNull()) | |||
5011 | CanonType = getCanonicalType(Underlying); | |||
5012 | else { | |||
5013 | // We can get here with an alias template when the specialization contains | |||
5014 | // a pack expansion that does not match up with a parameter pack. | |||
5015 | assert((!IsTypeAlias || hasAnyPackExpansions(Args)) &&(static_cast <bool> ((!IsTypeAlias || hasAnyPackExpansions (Args)) && "Caller must compute aliased type") ? void (0) : __assert_fail ("(!IsTypeAlias || hasAnyPackExpansions(Args)) && \"Caller must compute aliased type\"" , "clang/lib/AST/ASTContext.cpp", 5016, __extension__ __PRETTY_FUNCTION__ )) | |||
5016 | "Caller must compute aliased type")(static_cast <bool> ((!IsTypeAlias || hasAnyPackExpansions (Args)) && "Caller must compute aliased type") ? void (0) : __assert_fail ("(!IsTypeAlias || hasAnyPackExpansions(Args)) && \"Caller must compute aliased type\"" , "clang/lib/AST/ASTContext.cpp", 5016, __extension__ __PRETTY_FUNCTION__ )); | |||
5017 | IsTypeAlias = false; | |||
5018 | CanonType = getCanonicalTemplateSpecializationType(Template, Args); | |||
5019 | } | |||
5020 | ||||
5021 | // Allocate the (non-canonical) template specialization type, but don't | |||
5022 | // try to unique it: these types typically have location information that | |||
5023 | // we don't unique and don't want to lose. | |||
5024 | void *Mem = Allocate(sizeof(TemplateSpecializationType) + | |||
5025 | sizeof(TemplateArgument) * Args.size() + | |||
5026 | (IsTypeAlias? sizeof(QualType) : 0), | |||
5027 | TypeAlignment); | |||
5028 | auto *Spec | |||
5029 | = new (Mem) TemplateSpecializationType(Template, Args, CanonType, | |||
5030 | IsTypeAlias ? Underlying : QualType()); | |||
5031 | ||||
5032 | Types.push_back(Spec); | |||
5033 | return QualType(Spec, 0); | |||
5034 | } | |||
5035 | ||||
5036 | QualType ASTContext::getCanonicalTemplateSpecializationType( | |||
5037 | TemplateName Template, ArrayRef<TemplateArgument> Args) const { | |||
5038 | assert(!Template.getAsDependentTemplateName() &&(static_cast <bool> (!Template.getAsDependentTemplateName () && "No dependent template names here!") ? void (0) : __assert_fail ("!Template.getAsDependentTemplateName() && \"No dependent template names here!\"" , "clang/lib/AST/ASTContext.cpp", 5039, __extension__ __PRETTY_FUNCTION__ )) | |||
5039 | "No dependent template names here!")(static_cast <bool> (!Template.getAsDependentTemplateName () && "No dependent template names here!") ? void (0) : __assert_fail ("!Template.getAsDependentTemplateName() && \"No dependent template names here!\"" , "clang/lib/AST/ASTContext.cpp", 5039, __extension__ __PRETTY_FUNCTION__ )); | |||
5040 | ||||
5041 | // Look through qualified template names. | |||
5042 | if (QualifiedTemplateName *QTN = Template.getAsQualifiedTemplateName()) | |||
5043 | Template = TemplateName(QTN->getUnderlyingTemplate()); | |||
5044 | ||||
5045 | // Build the canonical template specialization type. | |||
5046 | TemplateName CanonTemplate = getCanonicalTemplateName(Template); | |||
5047 | bool AnyNonCanonArgs = false; | |||
5048 | auto CanonArgs = | |||
5049 | ::getCanonicalTemplateArguments(*this, Args, AnyNonCanonArgs); | |||
5050 | ||||
5051 | // Determine whether this canonical template specialization type already | |||
5052 | // exists. | |||
5053 | llvm::FoldingSetNodeID ID; | |||
5054 | TemplateSpecializationType::Profile(ID, CanonTemplate, | |||
5055 | CanonArgs, *this); | |||
5056 | ||||
5057 | void *InsertPos = nullptr; | |||
5058 | TemplateSpecializationType *Spec | |||
5059 | = TemplateSpecializationTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
5060 | ||||
5061 | if (!Spec) { | |||
5062 | // Allocate a new canonical template specialization type. | |||
5063 | void *Mem = Allocate((sizeof(TemplateSpecializationType) + | |||
5064 | sizeof(TemplateArgument) * CanonArgs.size()), | |||
5065 | TypeAlignment); | |||
5066 | Spec = new (Mem) TemplateSpecializationType(CanonTemplate, | |||
5067 | CanonArgs, | |||
5068 | QualType(), QualType()); | |||
5069 | Types.push_back(Spec); | |||
5070 | TemplateSpecializationTypes.InsertNode(Spec, InsertPos); | |||
5071 | } | |||
5072 | ||||
5073 | assert(Spec->isDependentType() &&(static_cast <bool> (Spec->isDependentType() && "Non-dependent template-id type must have a canonical type") ? void (0) : __assert_fail ("Spec->isDependentType() && \"Non-dependent template-id type must have a canonical type\"" , "clang/lib/AST/ASTContext.cpp", 5074, __extension__ __PRETTY_FUNCTION__ )) | |||
5074 | "Non-dependent template-id type must have a canonical type")(static_cast <bool> (Spec->isDependentType() && "Non-dependent template-id type must have a canonical type") ? void (0) : __assert_fail ("Spec->isDependentType() && \"Non-dependent template-id type must have a canonical type\"" , "clang/lib/AST/ASTContext.cpp", 5074, __extension__ __PRETTY_FUNCTION__ )); | |||
5075 | return QualType(Spec, 0); | |||
5076 | } | |||
5077 | ||||
5078 | QualType ASTContext::getElaboratedType(ElaboratedTypeKeyword Keyword, | |||
5079 | NestedNameSpecifier *NNS, | |||
5080 | QualType NamedType, | |||
5081 | TagDecl *OwnedTagDecl) const { | |||
5082 | llvm::FoldingSetNodeID ID; | |||
5083 | ElaboratedType::Profile(ID, Keyword, NNS, NamedType, OwnedTagDecl); | |||
5084 | ||||
5085 | void *InsertPos = nullptr; | |||
5086 | ElaboratedType *T = ElaboratedTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
5087 | if (T) | |||
5088 | return QualType(T, 0); | |||
5089 | ||||
5090 | QualType Canon = NamedType; | |||
5091 | if (!Canon.isCanonical()) { | |||
5092 | Canon = getCanonicalType(NamedType); | |||
5093 | ElaboratedType *CheckT = ElaboratedTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
5094 | assert(!CheckT && "Elaborated canonical type broken")(static_cast <bool> (!CheckT && "Elaborated canonical type broken" ) ? void (0) : __assert_fail ("!CheckT && \"Elaborated canonical type broken\"" , "clang/lib/AST/ASTContext.cpp", 5094, __extension__ __PRETTY_FUNCTION__ )); | |||
5095 | (void)CheckT; | |||
5096 | } | |||
5097 | ||||
5098 | void *Mem = Allocate(ElaboratedType::totalSizeToAlloc<TagDecl *>(!!OwnedTagDecl), | |||
5099 | TypeAlignment); | |||
5100 | T = new (Mem) ElaboratedType(Keyword, NNS, NamedType, Canon, OwnedTagDecl); | |||
5101 | ||||
5102 | Types.push_back(T); | |||
5103 | ElaboratedTypes.InsertNode(T, InsertPos); | |||
5104 | return QualType(T, 0); | |||
5105 | } | |||
5106 | ||||
5107 | QualType | |||
5108 | ASTContext::getParenType(QualType InnerType) const { | |||
5109 | llvm::FoldingSetNodeID ID; | |||
5110 | ParenType::Profile(ID, InnerType); | |||
5111 | ||||
5112 | void *InsertPos = nullptr; | |||
5113 | ParenType *T = ParenTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
5114 | if (T) | |||
5115 | return QualType(T, 0); | |||
5116 | ||||
5117 | QualType Canon = InnerType; | |||
5118 | if (!Canon.isCanonical()) { | |||
5119 | Canon = getCanonicalType(InnerType); | |||
5120 | ParenType *CheckT = ParenTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
5121 | assert(!CheckT && "Paren canonical type broken")(static_cast <bool> (!CheckT && "Paren canonical type broken" ) ? void (0) : __assert_fail ("!CheckT && \"Paren canonical type broken\"" , "clang/lib/AST/ASTContext.cpp", 5121, __extension__ __PRETTY_FUNCTION__ )); | |||
5122 | (void)CheckT; | |||
5123 | } | |||
5124 | ||||
5125 | T = new (*this, TypeAlignment) ParenType(InnerType, Canon); | |||
5126 | Types.push_back(T); | |||
5127 | ParenTypes.InsertNode(T, InsertPos); | |||
5128 | return QualType(T, 0); | |||
5129 | } | |||
5130 | ||||
5131 | QualType | |||
5132 | ASTContext::getMacroQualifiedType(QualType UnderlyingTy, | |||
5133 | const IdentifierInfo *MacroII) const { | |||
5134 | QualType Canon = UnderlyingTy; | |||
5135 | if (!Canon.isCanonical()) | |||
5136 | Canon = getCanonicalType(UnderlyingTy); | |||
5137 | ||||
5138 | auto *newType = new (*this, TypeAlignment) | |||
5139 | MacroQualifiedType(UnderlyingTy, Canon, MacroII); | |||
5140 | Types.push_back(newType); | |||
5141 | return QualType(newType, 0); | |||
5142 | } | |||
5143 | ||||
5144 | QualType ASTContext::getDependentNameType(ElaboratedTypeKeyword Keyword, | |||
5145 | NestedNameSpecifier *NNS, | |||
5146 | const IdentifierInfo *Name, | |||
5147 | QualType Canon) const { | |||
5148 | if (Canon.isNull()) { | |||
5149 | NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); | |||
5150 | if (CanonNNS != NNS) | |||
5151 | Canon = getDependentNameType(Keyword, CanonNNS, Name); | |||
5152 | } | |||
5153 | ||||
5154 | llvm::FoldingSetNodeID ID; | |||
5155 | DependentNameType::Profile(ID, Keyword, NNS, Name); | |||
5156 | ||||
5157 | void *InsertPos = nullptr; | |||
5158 | DependentNameType *T | |||
5159 | = DependentNameTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
5160 | if (T) | |||
5161 | return QualType(T, 0); | |||
5162 | ||||
5163 | T = new (*this, TypeAlignment) DependentNameType(Keyword, NNS, Name, Canon); | |||
5164 | Types.push_back(T); | |||
5165 | DependentNameTypes.InsertNode(T, InsertPos); | |||
5166 | return QualType(T, 0); | |||
5167 | } | |||
5168 | ||||
5169 | QualType ASTContext::getDependentTemplateSpecializationType( | |||
5170 | ElaboratedTypeKeyword Keyword, NestedNameSpecifier *NNS, | |||
5171 | const IdentifierInfo *Name, ArrayRef<TemplateArgumentLoc> Args) const { | |||
5172 | // TODO: avoid this copy | |||
5173 | SmallVector<TemplateArgument, 16> ArgCopy; | |||
5174 | for (unsigned I = 0, E = Args.size(); I != E; ++I) | |||
5175 | ArgCopy.push_back(Args[I].getArgument()); | |||
5176 | return getDependentTemplateSpecializationType(Keyword, NNS, Name, ArgCopy); | |||
5177 | } | |||
5178 | ||||
5179 | QualType | |||
5180 | ASTContext::getDependentTemplateSpecializationType( | |||
5181 | ElaboratedTypeKeyword Keyword, | |||
5182 | NestedNameSpecifier *NNS, | |||
5183 | const IdentifierInfo *Name, | |||
5184 | ArrayRef<TemplateArgument> Args) const { | |||
5185 | assert((!NNS || NNS->isDependent()) &&(static_cast <bool> ((!NNS || NNS->isDependent()) && "nested-name-specifier must be dependent") ? void (0) : __assert_fail ("(!NNS || NNS->isDependent()) && \"nested-name-specifier must be dependent\"" , "clang/lib/AST/ASTContext.cpp", 5186, __extension__ __PRETTY_FUNCTION__ )) | |||
5186 | "nested-name-specifier must be dependent")(static_cast <bool> ((!NNS || NNS->isDependent()) && "nested-name-specifier must be dependent") ? void (0) : __assert_fail ("(!NNS || NNS->isDependent()) && \"nested-name-specifier must be dependent\"" , "clang/lib/AST/ASTContext.cpp", 5186, __extension__ __PRETTY_FUNCTION__ )); | |||
5187 | ||||
5188 | llvm::FoldingSetNodeID ID; | |||
5189 | DependentTemplateSpecializationType::Profile(ID, *this, Keyword, NNS, | |||
5190 | Name, Args); | |||
5191 | ||||
5192 | void *InsertPos = nullptr; | |||
5193 | DependentTemplateSpecializationType *T | |||
5194 | = DependentTemplateSpecializationTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
5195 | if (T) | |||
5196 | return QualType(T, 0); | |||
5197 | ||||
5198 | NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); | |||
5199 | ||||
5200 | ElaboratedTypeKeyword CanonKeyword = Keyword; | |||
5201 | if (Keyword == ETK_None) CanonKeyword = ETK_Typename; | |||
5202 | ||||
5203 | bool AnyNonCanonArgs = false; | |||
5204 | auto CanonArgs = | |||
5205 | ::getCanonicalTemplateArguments(*this, Args, AnyNonCanonArgs); | |||
5206 | ||||
5207 | QualType Canon; | |||
5208 | if (AnyNonCanonArgs || CanonNNS != NNS || CanonKeyword != Keyword) { | |||
5209 | Canon = getDependentTemplateSpecializationType(CanonKeyword, CanonNNS, | |||
5210 | Name, | |||
5211 | CanonArgs); | |||
5212 | ||||
5213 | // Find the insert position again. | |||
5214 | [[maybe_unused]] auto *Nothing = | |||
5215 | DependentTemplateSpecializationTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
5216 | assert(!Nothing && "canonical type broken")(static_cast <bool> (!Nothing && "canonical type broken" ) ? void (0) : __assert_fail ("!Nothing && \"canonical type broken\"" , "clang/lib/AST/ASTContext.cpp", 5216, __extension__ __PRETTY_FUNCTION__ )); | |||
5217 | } | |||
5218 | ||||
5219 | void *Mem = Allocate((sizeof(DependentTemplateSpecializationType) + | |||
5220 | sizeof(TemplateArgument) * Args.size()), | |||
5221 | TypeAlignment); | |||
5222 | T = new (Mem) DependentTemplateSpecializationType(Keyword, NNS, | |||
5223 | Name, Args, Canon); | |||
5224 | Types.push_back(T); | |||
5225 | DependentTemplateSpecializationTypes.InsertNode(T, InsertPos); | |||
5226 | return QualType(T, 0); | |||
5227 | } | |||
5228 | ||||
5229 | TemplateArgument ASTContext::getInjectedTemplateArg(NamedDecl *Param) { | |||
5230 | TemplateArgument Arg; | |||
5231 | if (const auto *TTP = dyn_cast<TemplateTypeParmDecl>(Param)) { | |||
5232 | QualType ArgType = getTypeDeclType(TTP); | |||
5233 | if (TTP->isParameterPack()) | |||
5234 | ArgType = getPackExpansionType(ArgType, std::nullopt); | |||
5235 | ||||
5236 | Arg = TemplateArgument(ArgType); | |||
5237 | } else if (auto *NTTP = dyn_cast<NonTypeTemplateParmDecl>(Param)) { | |||
5238 | QualType T = | |||
5239 | NTTP->getType().getNonPackExpansionType().getNonLValueExprType(*this); | |||
5240 | // For class NTTPs, ensure we include the 'const' so the type matches that | |||
5241 | // of a real template argument. | |||
5242 | // FIXME: It would be more faithful to model this as something like an | |||
5243 | // lvalue-to-rvalue conversion applied to a const-qualified lvalue. | |||
5244 | if (T->isRecordType()) | |||
5245 | T.addConst(); | |||
5246 | Expr *E = new (*this) DeclRefExpr( | |||
5247 | *this, NTTP, /*RefersToEnclosingVariableOrCapture*/ false, T, | |||
5248 | Expr::getValueKindForType(NTTP->getType()), NTTP->getLocation()); | |||
5249 | ||||
5250 | if (NTTP->isParameterPack()) | |||
5251 | E = new (*this) | |||
5252 | PackExpansionExpr(DependentTy, E, NTTP->getLocation(), std::nullopt); | |||
5253 | Arg = TemplateArgument(E); | |||
5254 | } else { | |||
5255 | auto *TTP = cast<TemplateTemplateParmDecl>(Param); | |||
5256 | if (TTP->isParameterPack()) | |||
5257 | Arg = TemplateArgument(TemplateName(TTP), std::optional<unsigned>()); | |||
5258 | else | |||
5259 | Arg = TemplateArgument(TemplateName(TTP)); | |||
5260 | } | |||
5261 | ||||
5262 | if (Param->isTemplateParameterPack()) | |||
5263 | Arg = TemplateArgument::CreatePackCopy(*this, Arg); | |||
5264 | ||||
5265 | return Arg; | |||
5266 | } | |||
5267 | ||||
5268 | void | |||
5269 | ASTContext::getInjectedTemplateArgs(const TemplateParameterList *Params, | |||
5270 | SmallVectorImpl<TemplateArgument> &Args) { | |||
5271 | Args.reserve(Args.size() + Params->size()); | |||
5272 | ||||
5273 | for (NamedDecl *Param : *Params) | |||
5274 | Args.push_back(getInjectedTemplateArg(Param)); | |||
5275 | } | |||
5276 | ||||
5277 | QualType ASTContext::getPackExpansionType(QualType Pattern, | |||
5278 | std::optional<unsigned> NumExpansions, | |||
5279 | bool ExpectPackInType) { | |||
5280 | assert((!ExpectPackInType || Pattern->containsUnexpandedParameterPack()) &&(static_cast <bool> ((!ExpectPackInType || Pattern-> containsUnexpandedParameterPack()) && "Pack expansions must expand one or more parameter packs" ) ? void (0) : __assert_fail ("(!ExpectPackInType || Pattern->containsUnexpandedParameterPack()) && \"Pack expansions must expand one or more parameter packs\"" , "clang/lib/AST/ASTContext.cpp", 5281, __extension__ __PRETTY_FUNCTION__ )) | |||
5281 | "Pack expansions must expand one or more parameter packs")(static_cast <bool> ((!ExpectPackInType || Pattern-> containsUnexpandedParameterPack()) && "Pack expansions must expand one or more parameter packs" ) ? void (0) : __assert_fail ("(!ExpectPackInType || Pattern->containsUnexpandedParameterPack()) && \"Pack expansions must expand one or more parameter packs\"" , "clang/lib/AST/ASTContext.cpp", 5281, __extension__ __PRETTY_FUNCTION__ )); | |||
5282 | ||||
5283 | llvm::FoldingSetNodeID ID; | |||
5284 | PackExpansionType::Profile(ID, Pattern, NumExpansions); | |||
5285 | ||||
5286 | void *InsertPos = nullptr; | |||
5287 | PackExpansionType *T = PackExpansionTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
5288 | if (T) | |||
5289 | return QualType(T, 0); | |||
5290 | ||||
5291 | QualType Canon; | |||
5292 | if (!Pattern.isCanonical()) { | |||
5293 | Canon = getPackExpansionType(getCanonicalType(Pattern), NumExpansions, | |||
5294 | /*ExpectPackInType=*/false); | |||
5295 | ||||
5296 | // Find the insert position again, in case we inserted an element into | |||
5297 | // PackExpansionTypes and invalidated our insert position. | |||
5298 | PackExpansionTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
5299 | } | |||
5300 | ||||
5301 | T = new (*this, TypeAlignment) | |||
5302 | PackExpansionType(Pattern, Canon, NumExpansions); | |||
5303 | Types.push_back(T); | |||
5304 | PackExpansionTypes.InsertNode(T, InsertPos); | |||
5305 | return QualType(T, 0); | |||
5306 | } | |||
5307 | ||||
5308 | /// CmpProtocolNames - Comparison predicate for sorting protocols | |||
5309 | /// alphabetically. | |||
5310 | static int CmpProtocolNames(ObjCProtocolDecl *const *LHS, | |||
5311 | ObjCProtocolDecl *const *RHS) { | |||
5312 | return DeclarationName::compare((*LHS)->getDeclName(), (*RHS)->getDeclName()); | |||
5313 | } | |||
5314 | ||||
5315 | static bool areSortedAndUniqued(ArrayRef<ObjCProtocolDecl *> Protocols) { | |||
5316 | if (Protocols.empty()) return true; | |||
5317 | ||||
5318 | if (Protocols[0]->getCanonicalDecl() != Protocols[0]) | |||
5319 | return false; | |||
5320 | ||||
5321 | for (unsigned i = 1; i != Protocols.size(); ++i) | |||
5322 | if (CmpProtocolNames(&Protocols[i - 1], &Protocols[i]) >= 0 || | |||
5323 | Protocols[i]->getCanonicalDecl() != Protocols[i]) | |||
5324 | return false; | |||
5325 | return true; | |||
5326 | } | |||
5327 | ||||
5328 | static void | |||
5329 | SortAndUniqueProtocols(SmallVectorImpl<ObjCProtocolDecl *> &Protocols) { | |||
5330 | // Sort protocols, keyed by name. | |||
5331 | llvm::array_pod_sort(Protocols.begin(), Protocols.end(), CmpProtocolNames); | |||
5332 | ||||
5333 | // Canonicalize. | |||
5334 | for (ObjCProtocolDecl *&P : Protocols) | |||
5335 | P = P->getCanonicalDecl(); | |||
5336 | ||||
5337 | // Remove duplicates. | |||
5338 | auto ProtocolsEnd = std::unique(Protocols.begin(), Protocols.end()); | |||
5339 | Protocols.erase(ProtocolsEnd, Protocols.end()); | |||
5340 | } | |||
5341 | ||||
5342 | QualType ASTContext::getObjCObjectType(QualType BaseType, | |||
5343 | ObjCProtocolDecl * const *Protocols, | |||
5344 | unsigned NumProtocols) const { | |||
5345 | return getObjCObjectType(BaseType, {}, | |||
5346 | llvm::ArrayRef(Protocols, NumProtocols), | |||
5347 | /*isKindOf=*/false); | |||
5348 | } | |||
5349 | ||||
5350 | QualType ASTContext::getObjCObjectType( | |||
5351 | QualType baseType, | |||
5352 | ArrayRef<QualType> typeArgs, | |||
5353 | ArrayRef<ObjCProtocolDecl *> protocols, | |||
5354 | bool isKindOf) const { | |||
5355 | // If the base type is an interface and there aren't any protocols or | |||
5356 | // type arguments to add, then the interface type will do just fine. | |||
5357 | if (typeArgs.empty() && protocols.empty() && !isKindOf && | |||
5358 | isa<ObjCInterfaceType>(baseType)) | |||
5359 | return baseType; | |||
5360 | ||||
5361 | // Look in the folding set for an existing type. | |||
5362 | llvm::FoldingSetNodeID ID; | |||
5363 | ObjCObjectTypeImpl::Profile(ID, baseType, typeArgs, protocols, isKindOf); | |||
5364 | void *InsertPos = nullptr; | |||
5365 | if (ObjCObjectType *QT = ObjCObjectTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
5366 | return QualType(QT, 0); | |||
5367 | ||||
5368 | // Determine the type arguments to be used for canonicalization, | |||
5369 | // which may be explicitly specified here or written on the base | |||
5370 | // type. | |||
5371 | ArrayRef<QualType> effectiveTypeArgs = typeArgs; | |||
5372 | if (effectiveTypeArgs.empty()) { | |||
5373 | if (const auto *baseObject = baseType->getAs<ObjCObjectType>()) | |||
5374 | effectiveTypeArgs = baseObject->getTypeArgs(); | |||
5375 | } | |||
5376 | ||||
5377 | // Build the canonical type, which has the canonical base type and a | |||
5378 | // sorted-and-uniqued list of protocols and the type arguments | |||
5379 | // canonicalized. | |||
5380 | QualType canonical; | |||
5381 | bool typeArgsAreCanonical = llvm::all_of( | |||
5382 | effectiveTypeArgs, [&](QualType type) { return type.isCanonical(); }); | |||
5383 | bool protocolsSorted = areSortedAndUniqued(protocols); | |||
5384 | if (!typeArgsAreCanonical || !protocolsSorted || !baseType.isCanonical()) { | |||
5385 | // Determine the canonical type arguments. | |||
5386 | ArrayRef<QualType> canonTypeArgs; | |||
5387 | SmallVector<QualType, 4> canonTypeArgsVec; | |||
5388 | if (!typeArgsAreCanonical) { | |||
5389 | canonTypeArgsVec.reserve(effectiveTypeArgs.size()); | |||
5390 | for (auto typeArg : effectiveTypeArgs) | |||
5391 | canonTypeArgsVec.push_back(getCanonicalType(typeArg)); | |||
5392 | canonTypeArgs = canonTypeArgsVec; | |||
5393 | } else { | |||
5394 | canonTypeArgs = effectiveTypeArgs; | |||
5395 | } | |||
5396 | ||||
5397 | ArrayRef<ObjCProtocolDecl *> canonProtocols; | |||
5398 | SmallVector<ObjCProtocolDecl*, 8> canonProtocolsVec; | |||
5399 | if (!protocolsSorted) { | |||
5400 | canonProtocolsVec.append(protocols.begin(), protocols.end()); | |||
5401 | SortAndUniqueProtocols(canonProtocolsVec); | |||
5402 | canonProtocols = canonProtocolsVec; | |||
5403 | } else { | |||
5404 | canonProtocols = protocols; | |||
5405 | } | |||
5406 | ||||
5407 | canonical = getObjCObjectType(getCanonicalType(baseType), canonTypeArgs, | |||
5408 | canonProtocols, isKindOf); | |||
5409 | ||||
5410 | // Regenerate InsertPos. | |||
5411 | ObjCObjectTypes.FindNodeOrInsertPos(ID, InsertPos); | |||
5412 | } | |||
5413 | ||||
5414 | unsigned size = sizeof(ObjCObjectTypeImpl); | |||
5415 | size += typeArgs.size() * sizeof(QualType); | |||
5416 | size += protocols.size() * sizeof(ObjCProtocolDecl *); | |||
5417 | void *mem = Allocate(size, TypeAlignment); | |||
5418 | auto *T = | |||
5419 | new (mem) ObjCObjectTypeImpl(canonical, baseType, typeArgs, protocols, | |||
5420 | isKindOf); | |||
5421 | ||||
5422 | Types.push_back(T); | |||
5423 | ObjCObjectTypes.InsertNode(T, InsertPos); | |||
5424 | return QualType(T, 0); | |||
5425 | } | |||
5426 | ||||
5427 | /// Apply Objective-C protocol qualifiers to the given type. | |||
5428 | /// If this is for the canonical type of a type parameter, we can apply | |||
5429 | /// protocol qualifiers on the ObjCObjectPointerType. | |||
5430 | QualType | |||
5431 | ASTContext::applyObjCProtocolQualifiers(QualType type, | |||
5432 | ArrayRef<ObjCProtocolDecl *> protocols, bool &hasError, | |||
5433 | bool allowOnPointerType) const { | |||
5434 | hasError = false; | |||
5435 | ||||
5436 | if (const auto *objT = dyn_cast<ObjCTypeParamType>(type.getTypePtr())) { | |||
5437 | return getObjCTypeParamType(objT->getDecl(), protocols); | |||
5438 | } | |||
5439 | ||||
5440 | // Apply protocol qualifiers to ObjCObjectPointerType. | |||
5441 | if (allowOnPointerType) { | |||
5442 | if (const auto *objPtr = | |||
5443 | dyn_cast<ObjCObjectPointerType>(type.getTypePtr())) { | |||
5444 | const ObjCObjectType *objT = objPtr->getObjectType(); | |||
5445 | // Merge protocol lists and construct ObjCObjectType. | |||
5446 | SmallVector<ObjCProtocolDecl*, 8> protocolsVec; | |||
5447 | protocolsVec.append(objT->qual_begin(), | |||
5448 | objT->qual_end()); | |||
5449 | protocolsVec.append(protocols.begin(), protocols.end()); | |||
5450 | ArrayRef<ObjCProtocolDecl *> protocols = protocolsVec; | |||
5451 | type = getObjCObjectType( | |||
5452 | objT->getBaseType(), | |||
5453 | objT->getTypeArgsAsWritten(), | |||
5454 | protocols, | |||
5455 | objT->isKindOfTypeAsWritten()); | |||
5456 | return getObjCObjectPointerType(type); | |||
5457 | } | |||
5458 | } | |||
5459 | ||||
5460 | // Apply protocol qualifiers to ObjCObjectType. | |||
5461 | if (const auto *objT = dyn_cast<ObjCObjectType>(type.getTypePtr())){ | |||
5462 | // FIXME: Check for protocols to which the class type is already | |||
5463 | // known to conform. | |||
5464 | ||||
5465 | return getObjCObjectType(objT->getBaseType(), | |||
5466 | objT->getTypeArgsAsWritten(), | |||
5467 | protocols, | |||
5468 | objT->isKindOfTypeAsWritten()); | |||
5469 | } | |||
5470 | ||||
5471 | // If the canonical type is ObjCObjectType, ... | |||
5472 | if (type->isObjCObjectType()) { | |||
5473 | // Silently overwrite any existing protocol qualifiers. | |||
5474 | // TODO: determine whether that's the right thing to do. | |||
5475 | ||||
5476 | // FIXME: Check for protocols to which the class type is already | |||
5477 | // known to conform. | |||
5478 | return getObjCObjectType(type, {}, protocols, false); | |||
5479 | } | |||
5480 | ||||
5481 | // id<protocol-list> | |||
5482 | if (type->isObjCIdType()) { | |||
5483 | const auto *objPtr = type->castAs<ObjCObjectPointerType>(); | |||
5484 | type = getObjCObjectType(ObjCBuiltinIdTy, {}, protocols, | |||
5485 | objPtr->isKindOfType()); | |||
5486 | return getObjCObjectPointerType(type); | |||
5487 | } | |||
5488 | ||||
5489 | // Class<protocol-list> | |||
5490 | if (type->isObjCClassType()) { | |||
5491 | const auto *objPtr = type->castAs<ObjCObjectPointerType>(); | |||
5492 | type = getObjCObjectType(ObjCBuiltinClassTy, {}, protocols, | |||
5493 | objPtr->isKindOfType()); | |||
5494 | return getObjCObjectPointerType(type); | |||
5495 | } | |||
5496 | ||||
5497 | hasError = true; | |||
5498 | return type; | |||
5499 | } | |||
5500 | ||||
5501 | QualType | |||
5502 | ASTContext::getObjCTypeParamType(const ObjCTypeParamDecl *Decl, | |||
5503 | ArrayRef<ObjCProtocolDecl *> protocols) const { | |||
5504 | // Look in the folding set for an existing type. | |||
5505 | llvm::FoldingSetNodeID ID; | |||
5506 | ObjCTypeParamType::Profile(ID, Decl, Decl->getUnderlyingType(), protocols); | |||
5507 | void *InsertPos = nullptr; | |||
5508 | if (ObjCTypeParamType *TypeParam = | |||
5509 | ObjCTypeParamTypes.FindNodeOrInsertPos(ID, InsertPos)) | |||
5510 | return QualType(TypeParam, 0); | |||
5511 | ||||
5512 | // We canonicalize to the underlying type. | |||
5513 | QualType Canonical = getCanonicalType(Decl->getUnderlyingType()); | |||
5514 | if (!protocols.empty()) { | |||
5515 | // Apply the protocol qualifers. | |||
5516 | bool hasError; | |||
5517 | Canonical = getCanonicalType(applyObjCProtocolQualifiers( | |||
5518 | Canonical, protocols, hasError, true /*allowOnPointerType*/)); | |||
5519 | assert(!hasError && "Error when apply protocol qualifier to bound type")(static_cast <bool> (!hasError && "Error when apply protocol qualifier to bound type" ) ? void (0) : __assert_fail ("!hasError && \"Error when apply protocol qualifier to bound type\"" , "clang/lib/AST/ASTContext.cpp", 5519, __extension__ __PRETTY_FUNCTION__ )); | |||
5520 | } | |||
5521 | ||||
5522 | unsigned size = sizeof(ObjCTypeParamType); | |||
5523 | size += protocols.size() * sizeof(ObjCProtocolDecl *); | |||
5524 | void *mem = Allocate(size, TypeAlignment); | |||
5525 | auto *newType = new (mem) ObjCTypeParamType(Decl, Canonical, protocols); | |||
5526 | ||||
5527 | Types.push_back(newType); | |||
5528 | ObjCTypeParamTypes.InsertNode(newType, InsertPos); | |||
5529 | return QualType(newType, 0); | |||
5530 | } | |||
5531 | ||||
5532 | void ASTContext::adjustObjCTypeParamBoundType(const ObjCTypeParamDecl *Orig, | |||
5533 | ObjCTypeParamDecl *New) const { | |||
5534 | New->setTypeSourceInfo(getTrivialTypeSourceInfo(Orig->getUnderlyingType())); | |||
5535 | // Update TypeForDecl after updating TypeSourceInfo. | |||
5536 | auto NewTypeParamTy = cast<ObjCTypeParamType>(New->getTypeForDecl()); | |||
5537 | SmallVector<ObjCProtocolDecl *, 8> protocols; | |||
5538 | protocols.append(NewTypeParamTy->qual_begin(), NewTypeParamTy->qual_end()); | |||
5539 | QualType UpdatedTy = getObjCTypeParamType(New, protocols); | |||
5540 | New->setTypeForDecl(UpdatedTy.getTypePtr()); | |||
5541 | } | |||
5542 | ||||
5543 | /// ObjCObjectAdoptsQTypeProtocols - Checks that protocols in IC's | |||
5544 | /// protocol list adopt all protocols in QT's qualified-id protocol | |||
5545 | /// list. | |||
5546 | bool ASTContext::ObjCObjectAdoptsQTypeProtocols(QualType QT, | |||
5547 | ObjCInterfaceDecl *IC) { | |||
5548 | if (!QT->isObjCQualifiedIdType()) | |||
5549 | return false; | |||
5550 | ||||
5551 | if (const auto *OPT = QT->getAs<ObjCObjectPointerType>()) { | |||
5552 | // If both the right and left sides have qualifiers. | |||
5553 | for (auto *Proto : OPT->quals()) { | |||
5554 | if (!IC->ClassImplementsProtocol(Proto, false)) | |||
5555 | return false; | |||
5556 | } | |||
5557 | return true; | |||
5558 | } | |||
5559 | return false; | |||
5560 | } | |||
5561 | ||||
5562 | /// QIdProtocolsAdoptObjCObjectProtocols - Checks that protocols in | |||
5563 | /// QT's qualified-id protocol list adopt all protocols in IDecl's list | |||
5564 | /// of protocols. | |||
5565 | bool ASTContext::QIdProtocolsAdoptObjCObjectProtocols(QualType QT, | |||
5566 | ObjCInterfaceDecl *IDecl) { | |||
5567 | if (!QT->isObjCQualifiedIdType()) | |||
5568 | return false; | |||
5569 | const auto *OPT = QT->getAs<ObjCObjectPointerType>(); | |||
5570 | if (!OPT) | |||
5571 | return false; | |||
5572 | if (!IDecl->hasDefinition()) | |||
5573 | return false; | |||
5574 | llvm::SmallPtrSet<ObjCProtocolDecl *, 8> InheritedProtocols; | |||
5575 | CollectInheritedProtocols(IDecl, InheritedProtocols); | |||
5576 | if (InheritedProtocols.empty()) | |||
5577 | return false; | |||
5578 | // Check that if every protocol in list of id<plist> conforms to a protocol | |||
5579 | // of IDecl's, then bridge casting is ok. | |||
5580 | bool Conforms = false; | |||
5581 | for (auto *Proto : OPT->quals()) { | |||
5582 | Conforms = false; | |||
5583 | for (auto *PI : InheritedProtocols) { | |||
5584 | if (ProtocolCompatibleWithProtocol(Proto, PI)) { | |||
5585 | Conforms = true; | |||
5586 | break; | |||
5587 | } | |||
5588 | } | |||
5589 | if (!Conforms) | |||
5590 | break; | |||
5591 | } | |||
5592 | if (Conforms) | |||
5593 | return true; | |||
5594 | ||||
5595 | for (auto *PI : InheritedProtocols) { | |||
5596 | // If both the right and left sides have qualifiers. | |||
5597 | bool Adopts = false; | |||
5598 | for (auto *Proto : OPT->quals()) { | |||
5599 | // return 'true' if 'PI' is in the inheritance hierarchy of Proto | |||
5600 | if ((Adopts = ProtocolCompatibleWithProtocol(PI, Proto))) | |||
5601 | break; | |||
5602 | } | |||
5603 | if (!Adopts) | |||
5604 | return false; | |||
5605 | } | |||
5606 | return true; | |||
5607 | } | |||
5608 | ||||
5609 | /// getObjCObjectPointerType - Return a ObjCObjectPointerType type for | |||
5610 | /// the given object type. | |||
5611 | QualType ASTContext::getObjCObjectPointerType(QualType ObjectT) const { | |||
5612 | llvm::FoldingSetNodeID ID; | |||
5613 | ObjCObjectPointerType::Profile(ID, ObjectT); | |||
5614 | ||||
5615 | void *InsertPos = nullptr; | |||
5616 | if |