File: | clang/lib/AST/MicrosoftMangle.cpp |
Warning: | line 2420, column 7 Called C++ object pointer is null |
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1 | //===--- MicrosoftMangle.cpp - Microsoft Visual C++ Name Mangling ---------===// | ||||||
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 provides C++ name mangling targeting the Microsoft Visual C++ ABI. | ||||||
10 | // | ||||||
11 | //===----------------------------------------------------------------------===// | ||||||
12 | |||||||
13 | #include "clang/AST/Mangle.h" | ||||||
14 | #include "clang/AST/ASTContext.h" | ||||||
15 | #include "clang/AST/Attr.h" | ||||||
16 | #include "clang/AST/CXXInheritance.h" | ||||||
17 | #include "clang/AST/CharUnits.h" | ||||||
18 | #include "clang/AST/Decl.h" | ||||||
19 | #include "clang/AST/DeclCXX.h" | ||||||
20 | #include "clang/AST/DeclObjC.h" | ||||||
21 | #include "clang/AST/DeclOpenMP.h" | ||||||
22 | #include "clang/AST/DeclTemplate.h" | ||||||
23 | #include "clang/AST/Expr.h" | ||||||
24 | #include "clang/AST/ExprCXX.h" | ||||||
25 | #include "clang/AST/VTableBuilder.h" | ||||||
26 | #include "clang/Basic/ABI.h" | ||||||
27 | #include "clang/Basic/DiagnosticOptions.h" | ||||||
28 | #include "clang/Basic/TargetInfo.h" | ||||||
29 | #include "llvm/ADT/StringExtras.h" | ||||||
30 | #include "llvm/Support/CRC.h" | ||||||
31 | #include "llvm/Support/MD5.h" | ||||||
32 | #include "llvm/Support/MathExtras.h" | ||||||
33 | #include "llvm/Support/StringSaver.h" | ||||||
34 | #include "llvm/Support/xxhash.h" | ||||||
35 | |||||||
36 | using namespace clang; | ||||||
37 | |||||||
38 | namespace { | ||||||
39 | |||||||
40 | struct msvc_hashing_ostream : public llvm::raw_svector_ostream { | ||||||
41 | raw_ostream &OS; | ||||||
42 | llvm::SmallString<64> Buffer; | ||||||
43 | |||||||
44 | msvc_hashing_ostream(raw_ostream &OS) | ||||||
45 | : llvm::raw_svector_ostream(Buffer), OS(OS) {} | ||||||
46 | ~msvc_hashing_ostream() override { | ||||||
47 | StringRef MangledName = str(); | ||||||
48 | bool StartsWithEscape = MangledName.startswith("\01"); | ||||||
49 | if (StartsWithEscape) | ||||||
50 | MangledName = MangledName.drop_front(1); | ||||||
51 | if (MangledName.size() <= 4096) { | ||||||
52 | OS << str(); | ||||||
53 | return; | ||||||
54 | } | ||||||
55 | |||||||
56 | llvm::MD5 Hasher; | ||||||
57 | llvm::MD5::MD5Result Hash; | ||||||
58 | Hasher.update(MangledName); | ||||||
59 | Hasher.final(Hash); | ||||||
60 | |||||||
61 | SmallString<32> HexString; | ||||||
62 | llvm::MD5::stringifyResult(Hash, HexString); | ||||||
63 | |||||||
64 | if (StartsWithEscape) | ||||||
65 | OS << '\01'; | ||||||
66 | OS << "??@" << HexString << '@'; | ||||||
67 | } | ||||||
68 | }; | ||||||
69 | |||||||
70 | static const DeclContext * | ||||||
71 | getLambdaDefaultArgumentDeclContext(const Decl *D) { | ||||||
72 | if (const auto *RD = dyn_cast<CXXRecordDecl>(D)) | ||||||
73 | if (RD->isLambda()) | ||||||
74 | if (const auto *Parm = | ||||||
75 | dyn_cast_or_null<ParmVarDecl>(RD->getLambdaContextDecl())) | ||||||
76 | return Parm->getDeclContext(); | ||||||
77 | return nullptr; | ||||||
78 | } | ||||||
79 | |||||||
80 | /// Retrieve the declaration context that should be used when mangling | ||||||
81 | /// the given declaration. | ||||||
82 | static const DeclContext *getEffectiveDeclContext(const Decl *D) { | ||||||
83 | // The ABI assumes that lambda closure types that occur within | ||||||
84 | // default arguments live in the context of the function. However, due to | ||||||
85 | // the way in which Clang parses and creates function declarations, this is | ||||||
86 | // not the case: the lambda closure type ends up living in the context | ||||||
87 | // where the function itself resides, because the function declaration itself | ||||||
88 | // had not yet been created. Fix the context here. | ||||||
89 | if (const auto *LDADC = getLambdaDefaultArgumentDeclContext(D)) | ||||||
90 | return LDADC; | ||||||
91 | |||||||
92 | // Perform the same check for block literals. | ||||||
93 | if (const BlockDecl *BD = dyn_cast<BlockDecl>(D)) { | ||||||
94 | if (ParmVarDecl *ContextParam = | ||||||
95 | dyn_cast_or_null<ParmVarDecl>(BD->getBlockManglingContextDecl())) | ||||||
96 | return ContextParam->getDeclContext(); | ||||||
97 | } | ||||||
98 | |||||||
99 | const DeclContext *DC = D->getDeclContext(); | ||||||
100 | if (isa<CapturedDecl>(DC) || isa<OMPDeclareReductionDecl>(DC) || | ||||||
101 | isa<OMPDeclareMapperDecl>(DC)) { | ||||||
102 | return getEffectiveDeclContext(cast<Decl>(DC)); | ||||||
103 | } | ||||||
104 | |||||||
105 | return DC->getRedeclContext(); | ||||||
106 | } | ||||||
107 | |||||||
108 | static const DeclContext *getEffectiveParentContext(const DeclContext *DC) { | ||||||
109 | return getEffectiveDeclContext(cast<Decl>(DC)); | ||||||
110 | } | ||||||
111 | |||||||
112 | static const FunctionDecl *getStructor(const NamedDecl *ND) { | ||||||
113 | if (const auto *FTD = dyn_cast<FunctionTemplateDecl>(ND)) | ||||||
114 | return FTD->getTemplatedDecl()->getCanonicalDecl(); | ||||||
115 | |||||||
116 | const auto *FD = cast<FunctionDecl>(ND); | ||||||
117 | if (const auto *FTD = FD->getPrimaryTemplate()) | ||||||
118 | return FTD->getTemplatedDecl()->getCanonicalDecl(); | ||||||
119 | |||||||
120 | return FD->getCanonicalDecl(); | ||||||
121 | } | ||||||
122 | |||||||
123 | /// MicrosoftMangleContextImpl - Overrides the default MangleContext for the | ||||||
124 | /// Microsoft Visual C++ ABI. | ||||||
125 | class MicrosoftMangleContextImpl : public MicrosoftMangleContext { | ||||||
126 | typedef std::pair<const DeclContext *, IdentifierInfo *> DiscriminatorKeyTy; | ||||||
127 | llvm::DenseMap<DiscriminatorKeyTy, unsigned> Discriminator; | ||||||
128 | llvm::DenseMap<const NamedDecl *, unsigned> Uniquifier; | ||||||
129 | llvm::DenseMap<const CXXRecordDecl *, unsigned> LambdaIds; | ||||||
130 | llvm::DenseMap<const NamedDecl *, unsigned> SEHFilterIds; | ||||||
131 | llvm::DenseMap<const NamedDecl *, unsigned> SEHFinallyIds; | ||||||
132 | SmallString<16> AnonymousNamespaceHash; | ||||||
133 | |||||||
134 | public: | ||||||
135 | MicrosoftMangleContextImpl(ASTContext &Context, DiagnosticsEngine &Diags); | ||||||
136 | bool shouldMangleCXXName(const NamedDecl *D) override; | ||||||
137 | bool shouldMangleStringLiteral(const StringLiteral *SL) override; | ||||||
138 | void mangleCXXName(const NamedDecl *D, raw_ostream &Out) override; | ||||||
139 | void mangleVirtualMemPtrThunk(const CXXMethodDecl *MD, | ||||||
140 | const MethodVFTableLocation &ML, | ||||||
141 | raw_ostream &Out) override; | ||||||
142 | void mangleThunk(const CXXMethodDecl *MD, const ThunkInfo &Thunk, | ||||||
143 | raw_ostream &) override; | ||||||
144 | void mangleCXXDtorThunk(const CXXDestructorDecl *DD, CXXDtorType Type, | ||||||
145 | const ThisAdjustment &ThisAdjustment, | ||||||
146 | raw_ostream &) override; | ||||||
147 | void mangleCXXVFTable(const CXXRecordDecl *Derived, | ||||||
148 | ArrayRef<const CXXRecordDecl *> BasePath, | ||||||
149 | raw_ostream &Out) override; | ||||||
150 | void mangleCXXVBTable(const CXXRecordDecl *Derived, | ||||||
151 | ArrayRef<const CXXRecordDecl *> BasePath, | ||||||
152 | raw_ostream &Out) override; | ||||||
153 | void mangleCXXVirtualDisplacementMap(const CXXRecordDecl *SrcRD, | ||||||
154 | const CXXRecordDecl *DstRD, | ||||||
155 | raw_ostream &Out) override; | ||||||
156 | void mangleCXXThrowInfo(QualType T, bool IsConst, bool IsVolatile, | ||||||
157 | bool IsUnaligned, uint32_t NumEntries, | ||||||
158 | raw_ostream &Out) override; | ||||||
159 | void mangleCXXCatchableTypeArray(QualType T, uint32_t NumEntries, | ||||||
160 | raw_ostream &Out) override; | ||||||
161 | void mangleCXXCatchableType(QualType T, const CXXConstructorDecl *CD, | ||||||
162 | CXXCtorType CT, uint32_t Size, uint32_t NVOffset, | ||||||
163 | int32_t VBPtrOffset, uint32_t VBIndex, | ||||||
164 | raw_ostream &Out) override; | ||||||
165 | void mangleCXXRTTI(QualType T, raw_ostream &Out) override; | ||||||
166 | void mangleCXXRTTIName(QualType T, raw_ostream &Out) override; | ||||||
167 | void mangleCXXRTTIBaseClassDescriptor(const CXXRecordDecl *Derived, | ||||||
168 | uint32_t NVOffset, int32_t VBPtrOffset, | ||||||
169 | uint32_t VBTableOffset, uint32_t Flags, | ||||||
170 | raw_ostream &Out) override; | ||||||
171 | void mangleCXXRTTIBaseClassArray(const CXXRecordDecl *Derived, | ||||||
172 | raw_ostream &Out) override; | ||||||
173 | void mangleCXXRTTIClassHierarchyDescriptor(const CXXRecordDecl *Derived, | ||||||
174 | raw_ostream &Out) override; | ||||||
175 | void | ||||||
176 | mangleCXXRTTICompleteObjectLocator(const CXXRecordDecl *Derived, | ||||||
177 | ArrayRef<const CXXRecordDecl *> BasePath, | ||||||
178 | raw_ostream &Out) override; | ||||||
179 | void mangleTypeName(QualType T, raw_ostream &) override; | ||||||
180 | void mangleCXXCtor(const CXXConstructorDecl *D, CXXCtorType Type, | ||||||
181 | raw_ostream &) override; | ||||||
182 | void mangleCXXDtor(const CXXDestructorDecl *D, CXXDtorType Type, | ||||||
183 | raw_ostream &) override; | ||||||
184 | void mangleReferenceTemporary(const VarDecl *, unsigned ManglingNumber, | ||||||
185 | raw_ostream &) override; | ||||||
186 | void mangleStaticGuardVariable(const VarDecl *D, raw_ostream &Out) override; | ||||||
187 | void mangleThreadSafeStaticGuardVariable(const VarDecl *D, unsigned GuardNum, | ||||||
188 | raw_ostream &Out) override; | ||||||
189 | void mangleDynamicInitializer(const VarDecl *D, raw_ostream &Out) override; | ||||||
190 | void mangleDynamicAtExitDestructor(const VarDecl *D, | ||||||
191 | raw_ostream &Out) override; | ||||||
192 | void mangleSEHFilterExpression(const NamedDecl *EnclosingDecl, | ||||||
193 | raw_ostream &Out) override; | ||||||
194 | void mangleSEHFinallyBlock(const NamedDecl *EnclosingDecl, | ||||||
195 | raw_ostream &Out) override; | ||||||
196 | void mangleStringLiteral(const StringLiteral *SL, raw_ostream &Out) override; | ||||||
197 | bool getNextDiscriminator(const NamedDecl *ND, unsigned &disc) { | ||||||
198 | const DeclContext *DC = getEffectiveDeclContext(ND); | ||||||
199 | if (!DC->isFunctionOrMethod()) | ||||||
200 | return false; | ||||||
201 | |||||||
202 | // Lambda closure types are already numbered, give out a phony number so | ||||||
203 | // that they demangle nicely. | ||||||
204 | if (const auto *RD = dyn_cast<CXXRecordDecl>(ND)) { | ||||||
205 | if (RD->isLambda()) { | ||||||
206 | disc = 1; | ||||||
207 | return true; | ||||||
208 | } | ||||||
209 | } | ||||||
210 | |||||||
211 | // Use the canonical number for externally visible decls. | ||||||
212 | if (ND->isExternallyVisible()) { | ||||||
213 | disc = getASTContext().getManglingNumber(ND); | ||||||
214 | return true; | ||||||
215 | } | ||||||
216 | |||||||
217 | // Anonymous tags are already numbered. | ||||||
218 | if (const TagDecl *Tag = dyn_cast<TagDecl>(ND)) { | ||||||
219 | if (!Tag->hasNameForLinkage() && | ||||||
220 | !getASTContext().getDeclaratorForUnnamedTagDecl(Tag) && | ||||||
221 | !getASTContext().getTypedefNameForUnnamedTagDecl(Tag)) | ||||||
222 | return false; | ||||||
223 | } | ||||||
224 | |||||||
225 | // Make up a reasonable number for internal decls. | ||||||
226 | unsigned &discriminator = Uniquifier[ND]; | ||||||
227 | if (!discriminator) | ||||||
228 | discriminator = ++Discriminator[std::make_pair(DC, ND->getIdentifier())]; | ||||||
229 | disc = discriminator + 1; | ||||||
230 | return true; | ||||||
231 | } | ||||||
232 | |||||||
233 | unsigned getLambdaId(const CXXRecordDecl *RD) { | ||||||
234 | assert(RD->isLambda() && "RD must be a lambda!")((RD->isLambda() && "RD must be a lambda!") ? static_cast <void> (0) : __assert_fail ("RD->isLambda() && \"RD must be a lambda!\"" , "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 234, __PRETTY_FUNCTION__)); | ||||||
235 | assert(!RD->isExternallyVisible() && "RD must not be visible!")((!RD->isExternallyVisible() && "RD must not be visible!" ) ? static_cast<void> (0) : __assert_fail ("!RD->isExternallyVisible() && \"RD must not be visible!\"" , "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 235, __PRETTY_FUNCTION__)); | ||||||
236 | assert(RD->getLambdaManglingNumber() == 0 &&((RD->getLambdaManglingNumber() == 0 && "RD must not have a mangling number!" ) ? static_cast<void> (0) : __assert_fail ("RD->getLambdaManglingNumber() == 0 && \"RD must not have a mangling number!\"" , "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 237, __PRETTY_FUNCTION__)) | ||||||
237 | "RD must not have a mangling number!")((RD->getLambdaManglingNumber() == 0 && "RD must not have a mangling number!" ) ? static_cast<void> (0) : __assert_fail ("RD->getLambdaManglingNumber() == 0 && \"RD must not have a mangling number!\"" , "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 237, __PRETTY_FUNCTION__)); | ||||||
238 | std::pair<llvm::DenseMap<const CXXRecordDecl *, unsigned>::iterator, bool> | ||||||
239 | Result = LambdaIds.insert(std::make_pair(RD, LambdaIds.size())); | ||||||
240 | return Result.first->second; | ||||||
241 | } | ||||||
242 | |||||||
243 | /// Return a character sequence that is (somewhat) unique to the TU suitable | ||||||
244 | /// for mangling anonymous namespaces. | ||||||
245 | StringRef getAnonymousNamespaceHash() const { | ||||||
246 | return AnonymousNamespaceHash; | ||||||
247 | } | ||||||
248 | |||||||
249 | private: | ||||||
250 | void mangleInitFiniStub(const VarDecl *D, char CharCode, raw_ostream &Out); | ||||||
251 | }; | ||||||
252 | |||||||
253 | /// MicrosoftCXXNameMangler - Manage the mangling of a single name for the | ||||||
254 | /// Microsoft Visual C++ ABI. | ||||||
255 | class MicrosoftCXXNameMangler { | ||||||
256 | MicrosoftMangleContextImpl &Context; | ||||||
257 | raw_ostream &Out; | ||||||
258 | |||||||
259 | /// The "structor" is the top-level declaration being mangled, if | ||||||
260 | /// that's not a template specialization; otherwise it's the pattern | ||||||
261 | /// for that specialization. | ||||||
262 | const NamedDecl *Structor; | ||||||
263 | unsigned StructorType; | ||||||
264 | |||||||
265 | typedef llvm::SmallVector<std::string, 10> BackRefVec; | ||||||
266 | BackRefVec NameBackReferences; | ||||||
267 | |||||||
268 | typedef llvm::DenseMap<const void *, unsigned> ArgBackRefMap; | ||||||
269 | ArgBackRefMap FunArgBackReferences; | ||||||
270 | ArgBackRefMap TemplateArgBackReferences; | ||||||
271 | |||||||
272 | typedef llvm::DenseMap<const void *, StringRef> TemplateArgStringMap; | ||||||
273 | TemplateArgStringMap TemplateArgStrings; | ||||||
274 | llvm::StringSaver TemplateArgStringStorage; | ||||||
275 | llvm::BumpPtrAllocator TemplateArgStringStorageAlloc; | ||||||
276 | |||||||
277 | typedef std::set<std::pair<int, bool>> PassObjectSizeArgsSet; | ||||||
278 | PassObjectSizeArgsSet PassObjectSizeArgs; | ||||||
279 | |||||||
280 | ASTContext &getASTContext() const { return Context.getASTContext(); } | ||||||
281 | |||||||
282 | // FIXME: If we add support for __ptr32/64 qualifiers, then we should push | ||||||
283 | // this check into mangleQualifiers(). | ||||||
284 | const bool PointersAre64Bit; | ||||||
285 | |||||||
286 | public: | ||||||
287 | enum QualifierMangleMode { QMM_Drop, QMM_Mangle, QMM_Escape, QMM_Result }; | ||||||
288 | |||||||
289 | MicrosoftCXXNameMangler(MicrosoftMangleContextImpl &C, raw_ostream &Out_) | ||||||
290 | : Context(C), Out(Out_), Structor(nullptr), StructorType(-1), | ||||||
291 | TemplateArgStringStorage(TemplateArgStringStorageAlloc), | ||||||
292 | PointersAre64Bit(C.getASTContext().getTargetInfo().getPointerWidth(0) == | ||||||
293 | 64) {} | ||||||
294 | |||||||
295 | MicrosoftCXXNameMangler(MicrosoftMangleContextImpl &C, raw_ostream &Out_, | ||||||
296 | const CXXConstructorDecl *D, CXXCtorType Type) | ||||||
297 | : Context(C), Out(Out_), Structor(getStructor(D)), StructorType(Type), | ||||||
298 | TemplateArgStringStorage(TemplateArgStringStorageAlloc), | ||||||
299 | PointersAre64Bit(C.getASTContext().getTargetInfo().getPointerWidth(0) == | ||||||
300 | 64) {} | ||||||
301 | |||||||
302 | MicrosoftCXXNameMangler(MicrosoftMangleContextImpl &C, raw_ostream &Out_, | ||||||
303 | const CXXDestructorDecl *D, CXXDtorType Type) | ||||||
304 | : Context(C), Out(Out_), Structor(getStructor(D)), StructorType(Type), | ||||||
305 | TemplateArgStringStorage(TemplateArgStringStorageAlloc), | ||||||
306 | PointersAre64Bit(C.getASTContext().getTargetInfo().getPointerWidth(0) == | ||||||
307 | 64) {} | ||||||
308 | |||||||
309 | raw_ostream &getStream() const { return Out; } | ||||||
310 | |||||||
311 | void mangle(const NamedDecl *D, StringRef Prefix = "?"); | ||||||
312 | void mangleName(const NamedDecl *ND); | ||||||
313 | void mangleFunctionEncoding(const FunctionDecl *FD, bool ShouldMangle); | ||||||
314 | void mangleVariableEncoding(const VarDecl *VD); | ||||||
315 | void mangleMemberDataPointer(const CXXRecordDecl *RD, const ValueDecl *VD); | ||||||
316 | void mangleMemberFunctionPointer(const CXXRecordDecl *RD, | ||||||
317 | const CXXMethodDecl *MD); | ||||||
318 | void mangleVirtualMemPtrThunk(const CXXMethodDecl *MD, | ||||||
319 | const MethodVFTableLocation &ML); | ||||||
320 | void mangleNumber(int64_t Number); | ||||||
321 | void mangleTagTypeKind(TagTypeKind TK); | ||||||
322 | void mangleArtificialTagType(TagTypeKind TK, StringRef UnqualifiedName, | ||||||
323 | ArrayRef<StringRef> NestedNames = None); | ||||||
324 | void mangleAddressSpaceType(QualType T, Qualifiers Quals, SourceRange Range); | ||||||
325 | void mangleType(QualType T, SourceRange Range, | ||||||
326 | QualifierMangleMode QMM = QMM_Mangle); | ||||||
327 | void mangleFunctionType(const FunctionType *T, | ||||||
328 | const FunctionDecl *D = nullptr, | ||||||
329 | bool ForceThisQuals = false, | ||||||
330 | bool MangleExceptionSpec = true); | ||||||
331 | void mangleNestedName(const NamedDecl *ND); | ||||||
332 | |||||||
333 | private: | ||||||
334 | bool isStructorDecl(const NamedDecl *ND) const { | ||||||
335 | return ND == Structor || getStructor(ND) == Structor; | ||||||
336 | } | ||||||
337 | |||||||
338 | void mangleUnqualifiedName(const NamedDecl *ND) { | ||||||
339 | mangleUnqualifiedName(ND, ND->getDeclName()); | ||||||
340 | } | ||||||
341 | void mangleUnqualifiedName(const NamedDecl *ND, DeclarationName Name); | ||||||
342 | void mangleSourceName(StringRef Name); | ||||||
343 | void mangleOperatorName(OverloadedOperatorKind OO, SourceLocation Loc); | ||||||
344 | void mangleCXXDtorType(CXXDtorType T); | ||||||
345 | void mangleQualifiers(Qualifiers Quals, bool IsMember); | ||||||
346 | void mangleRefQualifier(RefQualifierKind RefQualifier); | ||||||
347 | void manglePointerCVQualifiers(Qualifiers Quals); | ||||||
348 | void manglePointerExtQualifiers(Qualifiers Quals, QualType PointeeType); | ||||||
349 | |||||||
350 | void mangleUnscopedTemplateName(const TemplateDecl *ND); | ||||||
351 | void | ||||||
352 | mangleTemplateInstantiationName(const TemplateDecl *TD, | ||||||
353 | const TemplateArgumentList &TemplateArgs); | ||||||
354 | void mangleObjCMethodName(const ObjCMethodDecl *MD); | ||||||
355 | |||||||
356 | void mangleFunctionArgumentType(QualType T, SourceRange Range); | ||||||
357 | void manglePassObjectSizeArg(const PassObjectSizeAttr *POSA); | ||||||
358 | |||||||
359 | bool isArtificialTagType(QualType T) const; | ||||||
360 | |||||||
361 | // Declare manglers for every type class. | ||||||
362 | #define ABSTRACT_TYPE(CLASS, PARENT) | ||||||
363 | #define NON_CANONICAL_TYPE(CLASS, PARENT) | ||||||
364 | #define TYPE(CLASS, PARENT) void mangleType(const CLASS##Type *T, \ | ||||||
365 | Qualifiers Quals, \ | ||||||
366 | SourceRange Range); | ||||||
367 | #include "clang/AST/TypeNodes.inc" | ||||||
368 | #undef ABSTRACT_TYPE | ||||||
369 | #undef NON_CANONICAL_TYPE | ||||||
370 | #undef TYPE | ||||||
371 | |||||||
372 | void mangleType(const TagDecl *TD); | ||||||
373 | void mangleDecayedArrayType(const ArrayType *T); | ||||||
374 | void mangleArrayType(const ArrayType *T); | ||||||
375 | void mangleFunctionClass(const FunctionDecl *FD); | ||||||
376 | void mangleCallingConvention(CallingConv CC); | ||||||
377 | void mangleCallingConvention(const FunctionType *T); | ||||||
378 | void mangleIntegerLiteral(const llvm::APSInt &Number, bool IsBoolean); | ||||||
379 | void mangleExpression(const Expr *E); | ||||||
380 | void mangleThrowSpecification(const FunctionProtoType *T); | ||||||
381 | |||||||
382 | void mangleTemplateArgs(const TemplateDecl *TD, | ||||||
383 | const TemplateArgumentList &TemplateArgs); | ||||||
384 | void mangleTemplateArg(const TemplateDecl *TD, const TemplateArgument &TA, | ||||||
385 | const NamedDecl *Parm); | ||||||
386 | |||||||
387 | void mangleObjCProtocol(const ObjCProtocolDecl *PD); | ||||||
388 | void mangleObjCLifetime(const QualType T, Qualifiers Quals, | ||||||
389 | SourceRange Range); | ||||||
390 | void mangleObjCKindOfType(const ObjCObjectType *T, Qualifiers Quals, | ||||||
391 | SourceRange Range); | ||||||
392 | }; | ||||||
393 | } | ||||||
394 | |||||||
395 | MicrosoftMangleContextImpl::MicrosoftMangleContextImpl(ASTContext &Context, | ||||||
396 | DiagnosticsEngine &Diags) | ||||||
397 | : MicrosoftMangleContext(Context, Diags) { | ||||||
398 | // To mangle anonymous namespaces, hash the path to the main source file. The | ||||||
399 | // path should be whatever (probably relative) path was passed on the command | ||||||
400 | // line. The goal is for the compiler to produce the same output regardless of | ||||||
401 | // working directory, so use the uncanonicalized relative path. | ||||||
402 | // | ||||||
403 | // It's important to make the mangled names unique because, when CodeView | ||||||
404 | // debug info is in use, the debugger uses mangled type names to distinguish | ||||||
405 | // between otherwise identically named types in anonymous namespaces. | ||||||
406 | // | ||||||
407 | // These symbols are always internal, so there is no need for the hash to | ||||||
408 | // match what MSVC produces. For the same reason, clang is free to change the | ||||||
409 | // hash at any time without breaking compatibility with old versions of clang. | ||||||
410 | // The generated names are intended to look similar to what MSVC generates, | ||||||
411 | // which are something like "?A0x01234567@". | ||||||
412 | SourceManager &SM = Context.getSourceManager(); | ||||||
413 | if (const FileEntry *FE = SM.getFileEntryForID(SM.getMainFileID())) { | ||||||
414 | // Truncate the hash so we get 8 characters of hexadecimal. | ||||||
415 | uint32_t TruncatedHash = uint32_t(xxHash64(FE->getName())); | ||||||
416 | AnonymousNamespaceHash = llvm::utohexstr(TruncatedHash); | ||||||
417 | } else { | ||||||
418 | // If we don't have a path to the main file, we'll just use 0. | ||||||
419 | AnonymousNamespaceHash = "0"; | ||||||
420 | } | ||||||
421 | } | ||||||
422 | |||||||
423 | bool MicrosoftMangleContextImpl::shouldMangleCXXName(const NamedDecl *D) { | ||||||
424 | if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) { | ||||||
425 | LanguageLinkage L = FD->getLanguageLinkage(); | ||||||
426 | // Overloadable functions need mangling. | ||||||
427 | if (FD->hasAttr<OverloadableAttr>()) | ||||||
428 | return true; | ||||||
429 | |||||||
430 | // The ABI expects that we would never mangle "typical" user-defined entry | ||||||
431 | // points regardless of visibility or freestanding-ness. | ||||||
432 | // | ||||||
433 | // N.B. This is distinct from asking about "main". "main" has a lot of | ||||||
434 | // special rules associated with it in the standard while these | ||||||
435 | // user-defined entry points are outside of the purview of the standard. | ||||||
436 | // For example, there can be only one definition for "main" in a standards | ||||||
437 | // compliant program; however nothing forbids the existence of wmain and | ||||||
438 | // WinMain in the same translation unit. | ||||||
439 | if (FD->isMSVCRTEntryPoint()) | ||||||
440 | return false; | ||||||
441 | |||||||
442 | // C++ functions and those whose names are not a simple identifier need | ||||||
443 | // mangling. | ||||||
444 | if (!FD->getDeclName().isIdentifier() || L == CXXLanguageLinkage) | ||||||
445 | return true; | ||||||
446 | |||||||
447 | // C functions are not mangled. | ||||||
448 | if (L == CLanguageLinkage) | ||||||
449 | return false; | ||||||
450 | } | ||||||
451 | |||||||
452 | // Otherwise, no mangling is done outside C++ mode. | ||||||
453 | if (!getASTContext().getLangOpts().CPlusPlus) | ||||||
454 | return false; | ||||||
455 | |||||||
456 | const VarDecl *VD = dyn_cast<VarDecl>(D); | ||||||
457 | if (VD && !isa<DecompositionDecl>(D)) { | ||||||
458 | // C variables are not mangled. | ||||||
459 | if (VD->isExternC()) | ||||||
460 | return false; | ||||||
461 | |||||||
462 | // Variables at global scope with non-internal linkage are not mangled. | ||||||
463 | const DeclContext *DC = getEffectiveDeclContext(D); | ||||||
464 | // Check for extern variable declared locally. | ||||||
465 | if (DC->isFunctionOrMethod() && D->hasLinkage()) | ||||||
466 | while (!DC->isNamespace() && !DC->isTranslationUnit()) | ||||||
467 | DC = getEffectiveParentContext(DC); | ||||||
468 | |||||||
469 | if (DC->isTranslationUnit() && D->getFormalLinkage() == InternalLinkage && | ||||||
470 | !isa<VarTemplateSpecializationDecl>(D) && | ||||||
471 | D->getIdentifier() != nullptr) | ||||||
472 | return false; | ||||||
473 | } | ||||||
474 | |||||||
475 | return true; | ||||||
476 | } | ||||||
477 | |||||||
478 | bool | ||||||
479 | MicrosoftMangleContextImpl::shouldMangleStringLiteral(const StringLiteral *SL) { | ||||||
480 | return true; | ||||||
481 | } | ||||||
482 | |||||||
483 | void MicrosoftCXXNameMangler::mangle(const NamedDecl *D, StringRef Prefix) { | ||||||
484 | // MSVC doesn't mangle C++ names the same way it mangles extern "C" names. | ||||||
485 | // Therefore it's really important that we don't decorate the | ||||||
486 | // name with leading underscores or leading/trailing at signs. So, by | ||||||
487 | // default, we emit an asm marker at the start so we get the name right. | ||||||
488 | // Callers can override this with a custom prefix. | ||||||
489 | |||||||
490 | // <mangled-name> ::= ? <name> <type-encoding> | ||||||
491 | Out << Prefix; | ||||||
492 | mangleName(D); | ||||||
493 | if (const FunctionDecl *FD
| ||||||
494 | mangleFunctionEncoding(FD, Context.shouldMangleDeclName(FD)); | ||||||
495 | else if (const VarDecl *VD
| ||||||
496 | mangleVariableEncoding(VD); | ||||||
497 | else | ||||||
498 | llvm_unreachable("Tried to mangle unexpected NamedDecl!")::llvm::llvm_unreachable_internal("Tried to mangle unexpected NamedDecl!" , "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 498); | ||||||
499 | } | ||||||
500 | |||||||
501 | void MicrosoftCXXNameMangler::mangleFunctionEncoding(const FunctionDecl *FD, | ||||||
502 | bool ShouldMangle) { | ||||||
503 | // <type-encoding> ::= <function-class> <function-type> | ||||||
504 | |||||||
505 | // Since MSVC operates on the type as written and not the canonical type, it | ||||||
506 | // actually matters which decl we have here. MSVC appears to choose the | ||||||
507 | // first, since it is most likely to be the declaration in a header file. | ||||||
508 | FD = FD->getFirstDecl(); | ||||||
509 | |||||||
510 | // We should never ever see a FunctionNoProtoType at this point. | ||||||
511 | // We don't even know how to mangle their types anyway :). | ||||||
512 | const FunctionProtoType *FT = FD->getType()->castAs<FunctionProtoType>(); | ||||||
513 | |||||||
514 | // extern "C" functions can hold entities that must be mangled. | ||||||
515 | // As it stands, these functions still need to get expressed in the full | ||||||
516 | // external name. They have their class and type omitted, replaced with '9'. | ||||||
517 | if (ShouldMangle) { | ||||||
518 | // We would like to mangle all extern "C" functions using this additional | ||||||
519 | // component but this would break compatibility with MSVC's behavior. | ||||||
520 | // Instead, do this when we know that compatibility isn't important (in | ||||||
521 | // other words, when it is an overloaded extern "C" function). | ||||||
522 | if (FD->isExternC() && FD->hasAttr<OverloadableAttr>()) | ||||||
523 | Out << "$$J0"; | ||||||
524 | |||||||
525 | mangleFunctionClass(FD); | ||||||
526 | |||||||
527 | mangleFunctionType(FT, FD, false, false); | ||||||
528 | } else { | ||||||
529 | Out << '9'; | ||||||
530 | } | ||||||
531 | } | ||||||
532 | |||||||
533 | void MicrosoftCXXNameMangler::mangleVariableEncoding(const VarDecl *VD) { | ||||||
534 | // <type-encoding> ::= <storage-class> <variable-type> | ||||||
535 | // <storage-class> ::= 0 # private static member | ||||||
536 | // ::= 1 # protected static member | ||||||
537 | // ::= 2 # public static member | ||||||
538 | // ::= 3 # global | ||||||
539 | // ::= 4 # static local | ||||||
540 | |||||||
541 | // The first character in the encoding (after the name) is the storage class. | ||||||
542 | if (VD->isStaticDataMember()) { | ||||||
543 | // If it's a static member, it also encodes the access level. | ||||||
544 | switch (VD->getAccess()) { | ||||||
545 | default: | ||||||
546 | case AS_private: Out << '0'; break; | ||||||
547 | case AS_protected: Out << '1'; break; | ||||||
548 | case AS_public: Out << '2'; break; | ||||||
549 | } | ||||||
550 | } | ||||||
551 | else if (!VD->isStaticLocal()) | ||||||
552 | Out << '3'; | ||||||
553 | else | ||||||
554 | Out << '4'; | ||||||
555 | // Now mangle the type. | ||||||
556 | // <variable-type> ::= <type> <cvr-qualifiers> | ||||||
557 | // ::= <type> <pointee-cvr-qualifiers> # pointers, references | ||||||
558 | // Pointers and references are odd. The type of 'int * const foo;' gets | ||||||
559 | // mangled as 'QAHA' instead of 'PAHB', for example. | ||||||
560 | SourceRange SR = VD->getSourceRange(); | ||||||
561 | QualType Ty = VD->getType(); | ||||||
562 | if (Ty->isPointerType() || Ty->isReferenceType() || | ||||||
563 | Ty->isMemberPointerType()) { | ||||||
564 | mangleType(Ty, SR, QMM_Drop); | ||||||
565 | manglePointerExtQualifiers( | ||||||
566 | Ty.getDesugaredType(getASTContext()).getLocalQualifiers(), QualType()); | ||||||
567 | if (const MemberPointerType *MPT = Ty->getAs<MemberPointerType>()) { | ||||||
568 | mangleQualifiers(MPT->getPointeeType().getQualifiers(), true); | ||||||
569 | // Member pointers are suffixed with a back reference to the member | ||||||
570 | // pointer's class name. | ||||||
571 | mangleName(MPT->getClass()->getAsCXXRecordDecl()); | ||||||
572 | } else | ||||||
573 | mangleQualifiers(Ty->getPointeeType().getQualifiers(), false); | ||||||
574 | } else if (const ArrayType *AT = getASTContext().getAsArrayType(Ty)) { | ||||||
575 | // Global arrays are funny, too. | ||||||
576 | mangleDecayedArrayType(AT); | ||||||
577 | if (AT->getElementType()->isArrayType()) | ||||||
578 | Out << 'A'; | ||||||
579 | else | ||||||
580 | mangleQualifiers(Ty.getQualifiers(), false); | ||||||
581 | } else { | ||||||
582 | mangleType(Ty, SR, QMM_Drop); | ||||||
583 | mangleQualifiers(Ty.getQualifiers(), false); | ||||||
584 | } | ||||||
585 | } | ||||||
586 | |||||||
587 | void MicrosoftCXXNameMangler::mangleMemberDataPointer(const CXXRecordDecl *RD, | ||||||
588 | const ValueDecl *VD) { | ||||||
589 | // <member-data-pointer> ::= <integer-literal> | ||||||
590 | // ::= $F <number> <number> | ||||||
591 | // ::= $G <number> <number> <number> | ||||||
592 | |||||||
593 | int64_t FieldOffset; | ||||||
594 | int64_t VBTableOffset; | ||||||
595 | MSInheritanceAttr::Spelling IM = RD->getMSInheritanceModel(); | ||||||
596 | if (VD) { | ||||||
597 | FieldOffset = getASTContext().getFieldOffset(VD); | ||||||
598 | assert(FieldOffset % getASTContext().getCharWidth() == 0 &&((FieldOffset % getASTContext().getCharWidth() == 0 && "cannot take address of bitfield") ? static_cast<void> (0) : __assert_fail ("FieldOffset % getASTContext().getCharWidth() == 0 && \"cannot take address of bitfield\"" , "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 599, __PRETTY_FUNCTION__)) | ||||||
599 | "cannot take address of bitfield")((FieldOffset % getASTContext().getCharWidth() == 0 && "cannot take address of bitfield") ? static_cast<void> (0) : __assert_fail ("FieldOffset % getASTContext().getCharWidth() == 0 && \"cannot take address of bitfield\"" , "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 599, __PRETTY_FUNCTION__)); | ||||||
600 | FieldOffset /= getASTContext().getCharWidth(); | ||||||
601 | |||||||
602 | VBTableOffset = 0; | ||||||
603 | |||||||
604 | if (IM == MSInheritanceAttr::Keyword_virtual_inheritance) | ||||||
605 | FieldOffset -= getASTContext().getOffsetOfBaseWithVBPtr(RD).getQuantity(); | ||||||
606 | } else { | ||||||
607 | FieldOffset = RD->nullFieldOffsetIsZero() ? 0 : -1; | ||||||
608 | |||||||
609 | VBTableOffset = -1; | ||||||
610 | } | ||||||
611 | |||||||
612 | char Code = '\0'; | ||||||
613 | switch (IM) { | ||||||
614 | case MSInheritanceAttr::Keyword_single_inheritance: Code = '0'; break; | ||||||
615 | case MSInheritanceAttr::Keyword_multiple_inheritance: Code = '0'; break; | ||||||
616 | case MSInheritanceAttr::Keyword_virtual_inheritance: Code = 'F'; break; | ||||||
617 | case MSInheritanceAttr::Keyword_unspecified_inheritance: Code = 'G'; break; | ||||||
618 | case MSInheritanceAttr::SpellingNotCalculated: | ||||||
619 | llvm_unreachable("not reachable")::llvm::llvm_unreachable_internal("not reachable", "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 619); | ||||||
620 | } | ||||||
621 | |||||||
622 | Out << '$' << Code; | ||||||
623 | |||||||
624 | mangleNumber(FieldOffset); | ||||||
625 | |||||||
626 | // The C++ standard doesn't allow base-to-derived member pointer conversions | ||||||
627 | // in template parameter contexts, so the vbptr offset of data member pointers | ||||||
628 | // is always zero. | ||||||
629 | if (MSInheritanceAttr::hasVBPtrOffsetField(IM)) | ||||||
630 | mangleNumber(0); | ||||||
631 | if (MSInheritanceAttr::hasVBTableOffsetField(IM)) | ||||||
632 | mangleNumber(VBTableOffset); | ||||||
633 | } | ||||||
634 | |||||||
635 | void | ||||||
636 | MicrosoftCXXNameMangler::mangleMemberFunctionPointer(const CXXRecordDecl *RD, | ||||||
637 | const CXXMethodDecl *MD) { | ||||||
638 | // <member-function-pointer> ::= $1? <name> | ||||||
639 | // ::= $H? <name> <number> | ||||||
640 | // ::= $I? <name> <number> <number> | ||||||
641 | // ::= $J? <name> <number> <number> <number> | ||||||
642 | |||||||
643 | MSInheritanceAttr::Spelling IM = RD->getMSInheritanceModel(); | ||||||
644 | |||||||
645 | char Code = '\0'; | ||||||
646 | switch (IM) { | ||||||
647 | case MSInheritanceAttr::Keyword_single_inheritance: Code = '1'; break; | ||||||
648 | case MSInheritanceAttr::Keyword_multiple_inheritance: Code = 'H'; break; | ||||||
649 | case MSInheritanceAttr::Keyword_virtual_inheritance: Code = 'I'; break; | ||||||
650 | case MSInheritanceAttr::Keyword_unspecified_inheritance: Code = 'J'; break; | ||||||
651 | case MSInheritanceAttr::SpellingNotCalculated: | ||||||
652 | llvm_unreachable("not reachable")::llvm::llvm_unreachable_internal("not reachable", "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 652); | ||||||
653 | } | ||||||
654 | |||||||
655 | // If non-virtual, mangle the name. If virtual, mangle as a virtual memptr | ||||||
656 | // thunk. | ||||||
657 | uint64_t NVOffset = 0; | ||||||
658 | uint64_t VBTableOffset = 0; | ||||||
659 | uint64_t VBPtrOffset = 0; | ||||||
660 | if (MD) { | ||||||
661 | Out << '$' << Code << '?'; | ||||||
662 | if (MD->isVirtual()) { | ||||||
663 | MicrosoftVTableContext *VTContext = | ||||||
664 | cast<MicrosoftVTableContext>(getASTContext().getVTableContext()); | ||||||
665 | MethodVFTableLocation ML = | ||||||
666 | VTContext->getMethodVFTableLocation(GlobalDecl(MD)); | ||||||
667 | mangleVirtualMemPtrThunk(MD, ML); | ||||||
668 | NVOffset = ML.VFPtrOffset.getQuantity(); | ||||||
669 | VBTableOffset = ML.VBTableIndex * 4; | ||||||
670 | if (ML.VBase) { | ||||||
671 | const ASTRecordLayout &Layout = getASTContext().getASTRecordLayout(RD); | ||||||
672 | VBPtrOffset = Layout.getVBPtrOffset().getQuantity(); | ||||||
673 | } | ||||||
674 | } else { | ||||||
675 | mangleName(MD); | ||||||
676 | mangleFunctionEncoding(MD, /*ShouldMangle=*/true); | ||||||
677 | } | ||||||
678 | |||||||
679 | if (VBTableOffset == 0 && | ||||||
680 | IM == MSInheritanceAttr::Keyword_virtual_inheritance) | ||||||
681 | NVOffset -= getASTContext().getOffsetOfBaseWithVBPtr(RD).getQuantity(); | ||||||
682 | } else { | ||||||
683 | // Null single inheritance member functions are encoded as a simple nullptr. | ||||||
684 | if (IM == MSInheritanceAttr::Keyword_single_inheritance) { | ||||||
685 | Out << "$0A@"; | ||||||
686 | return; | ||||||
687 | } | ||||||
688 | if (IM == MSInheritanceAttr::Keyword_unspecified_inheritance) | ||||||
689 | VBTableOffset = -1; | ||||||
690 | Out << '$' << Code; | ||||||
691 | } | ||||||
692 | |||||||
693 | if (MSInheritanceAttr::hasNVOffsetField(/*IsMemberFunction=*/true, IM)) | ||||||
694 | mangleNumber(static_cast<uint32_t>(NVOffset)); | ||||||
695 | if (MSInheritanceAttr::hasVBPtrOffsetField(IM)) | ||||||
696 | mangleNumber(VBPtrOffset); | ||||||
697 | if (MSInheritanceAttr::hasVBTableOffsetField(IM)) | ||||||
698 | mangleNumber(VBTableOffset); | ||||||
699 | } | ||||||
700 | |||||||
701 | void MicrosoftCXXNameMangler::mangleVirtualMemPtrThunk( | ||||||
702 | const CXXMethodDecl *MD, const MethodVFTableLocation &ML) { | ||||||
703 | // Get the vftable offset. | ||||||
704 | CharUnits PointerWidth = getASTContext().toCharUnitsFromBits( | ||||||
705 | getASTContext().getTargetInfo().getPointerWidth(0)); | ||||||
706 | uint64_t OffsetInVFTable = ML.Index * PointerWidth.getQuantity(); | ||||||
707 | |||||||
708 | Out << "?_9"; | ||||||
709 | mangleName(MD->getParent()); | ||||||
710 | Out << "$B"; | ||||||
711 | mangleNumber(OffsetInVFTable); | ||||||
712 | Out << 'A'; | ||||||
713 | mangleCallingConvention(MD->getType()->getAs<FunctionProtoType>()); | ||||||
714 | } | ||||||
715 | |||||||
716 | void MicrosoftCXXNameMangler::mangleName(const NamedDecl *ND) { | ||||||
717 | // <name> ::= <unscoped-name> {[<named-scope>]+ | [<nested-name>]}? @ | ||||||
718 | |||||||
719 | // Always start with the unqualified name. | ||||||
720 | mangleUnqualifiedName(ND); | ||||||
721 | |||||||
722 | mangleNestedName(ND); | ||||||
723 | |||||||
724 | // Terminate the whole name with an '@'. | ||||||
725 | Out << '@'; | ||||||
726 | } | ||||||
727 | |||||||
728 | void MicrosoftCXXNameMangler::mangleNumber(int64_t Number) { | ||||||
729 | // <non-negative integer> ::= A@ # when Number == 0 | ||||||
730 | // ::= <decimal digit> # when 1 <= Number <= 10 | ||||||
731 | // ::= <hex digit>+ @ # when Number >= 10 | ||||||
732 | // | ||||||
733 | // <number> ::= [?] <non-negative integer> | ||||||
734 | |||||||
735 | uint64_t Value = static_cast<uint64_t>(Number); | ||||||
736 | if (Number < 0) { | ||||||
737 | Value = -Value; | ||||||
738 | Out << '?'; | ||||||
739 | } | ||||||
740 | |||||||
741 | if (Value == 0) | ||||||
742 | Out << "A@"; | ||||||
743 | else if (Value >= 1 && Value <= 10) | ||||||
744 | Out << (Value - 1); | ||||||
745 | else { | ||||||
746 | // Numbers that are not encoded as decimal digits are represented as nibbles | ||||||
747 | // in the range of ASCII characters 'A' to 'P'. | ||||||
748 | // The number 0x123450 would be encoded as 'BCDEFA' | ||||||
749 | char EncodedNumberBuffer[sizeof(uint64_t) * 2]; | ||||||
750 | MutableArrayRef<char> BufferRef(EncodedNumberBuffer); | ||||||
751 | MutableArrayRef<char>::reverse_iterator I = BufferRef.rbegin(); | ||||||
752 | for (; Value != 0; Value >>= 4) | ||||||
753 | *I++ = 'A' + (Value & 0xf); | ||||||
754 | Out.write(I.base(), I - BufferRef.rbegin()); | ||||||
755 | Out << '@'; | ||||||
756 | } | ||||||
757 | } | ||||||
758 | |||||||
759 | static const TemplateDecl * | ||||||
760 | isTemplate(const NamedDecl *ND, const TemplateArgumentList *&TemplateArgs) { | ||||||
761 | // Check if we have a function template. | ||||||
762 | if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(ND)) { | ||||||
763 | if (const TemplateDecl *TD = FD->getPrimaryTemplate()) { | ||||||
764 | TemplateArgs = FD->getTemplateSpecializationArgs(); | ||||||
765 | return TD; | ||||||
766 | } | ||||||
767 | } | ||||||
768 | |||||||
769 | // Check if we have a class template. | ||||||
770 | if (const ClassTemplateSpecializationDecl *Spec = | ||||||
771 | dyn_cast<ClassTemplateSpecializationDecl>(ND)) { | ||||||
772 | TemplateArgs = &Spec->getTemplateArgs(); | ||||||
773 | return Spec->getSpecializedTemplate(); | ||||||
774 | } | ||||||
775 | |||||||
776 | // Check if we have a variable template. | ||||||
777 | if (const VarTemplateSpecializationDecl *Spec = | ||||||
778 | dyn_cast<VarTemplateSpecializationDecl>(ND)) { | ||||||
779 | TemplateArgs = &Spec->getTemplateArgs(); | ||||||
780 | return Spec->getSpecializedTemplate(); | ||||||
781 | } | ||||||
782 | |||||||
783 | return nullptr; | ||||||
784 | } | ||||||
785 | |||||||
786 | void MicrosoftCXXNameMangler::mangleUnqualifiedName(const NamedDecl *ND, | ||||||
787 | DeclarationName Name) { | ||||||
788 | // <unqualified-name> ::= <operator-name> | ||||||
789 | // ::= <ctor-dtor-name> | ||||||
790 | // ::= <source-name> | ||||||
791 | // ::= <template-name> | ||||||
792 | |||||||
793 | // Check if we have a template. | ||||||
794 | const TemplateArgumentList *TemplateArgs = nullptr; | ||||||
795 | if (const TemplateDecl *TD = isTemplate(ND, TemplateArgs)) { | ||||||
796 | // Function templates aren't considered for name back referencing. This | ||||||
797 | // makes sense since function templates aren't likely to occur multiple | ||||||
798 | // times in a symbol. | ||||||
799 | if (isa<FunctionTemplateDecl>(TD)) { | ||||||
800 | mangleTemplateInstantiationName(TD, *TemplateArgs); | ||||||
801 | Out << '@'; | ||||||
802 | return; | ||||||
803 | } | ||||||
804 | |||||||
805 | // Here comes the tricky thing: if we need to mangle something like | ||||||
806 | // void foo(A::X<Y>, B::X<Y>), | ||||||
807 | // the X<Y> part is aliased. However, if you need to mangle | ||||||
808 | // void foo(A::X<A::Y>, A::X<B::Y>), | ||||||
809 | // the A::X<> part is not aliased. | ||||||
810 | // That is, from the mangler's perspective we have a structure like this: | ||||||
811 | // namespace[s] -> type[ -> template-parameters] | ||||||
812 | // but from the Clang perspective we have | ||||||
813 | // type [ -> template-parameters] | ||||||
814 | // \-> namespace[s] | ||||||
815 | // What we do is we create a new mangler, mangle the same type (without | ||||||
816 | // a namespace suffix) to a string using the extra mangler and then use | ||||||
817 | // the mangled type name as a key to check the mangling of different types | ||||||
818 | // for aliasing. | ||||||
819 | |||||||
820 | // It's important to key cache reads off ND, not TD -- the same TD can | ||||||
821 | // be used with different TemplateArgs, but ND uniquely identifies | ||||||
822 | // TD / TemplateArg pairs. | ||||||
823 | ArgBackRefMap::iterator Found = TemplateArgBackReferences.find(ND); | ||||||
824 | if (Found == TemplateArgBackReferences.end()) { | ||||||
825 | |||||||
826 | TemplateArgStringMap::iterator Found = TemplateArgStrings.find(ND); | ||||||
827 | if (Found == TemplateArgStrings.end()) { | ||||||
828 | // Mangle full template name into temporary buffer. | ||||||
829 | llvm::SmallString<64> TemplateMangling; | ||||||
830 | llvm::raw_svector_ostream Stream(TemplateMangling); | ||||||
831 | MicrosoftCXXNameMangler Extra(Context, Stream); | ||||||
832 | Extra.mangleTemplateInstantiationName(TD, *TemplateArgs); | ||||||
833 | |||||||
834 | // Use the string backref vector to possibly get a back reference. | ||||||
835 | mangleSourceName(TemplateMangling); | ||||||
836 | |||||||
837 | // Memoize back reference for this type if one exist, else memoize | ||||||
838 | // the mangling itself. | ||||||
839 | BackRefVec::iterator StringFound = | ||||||
840 | llvm::find(NameBackReferences, TemplateMangling); | ||||||
841 | if (StringFound != NameBackReferences.end()) { | ||||||
842 | TemplateArgBackReferences[ND] = | ||||||
843 | StringFound - NameBackReferences.begin(); | ||||||
844 | } else { | ||||||
845 | TemplateArgStrings[ND] = | ||||||
846 | TemplateArgStringStorage.save(TemplateMangling.str()); | ||||||
847 | } | ||||||
848 | } else { | ||||||
849 | Out << Found->second << '@'; // Outputs a StringRef. | ||||||
850 | } | ||||||
851 | } else { | ||||||
852 | Out << Found->second; // Outputs a back reference (an int). | ||||||
853 | } | ||||||
854 | return; | ||||||
855 | } | ||||||
856 | |||||||
857 | switch (Name.getNameKind()) { | ||||||
858 | case DeclarationName::Identifier: { | ||||||
859 | if (const IdentifierInfo *II = Name.getAsIdentifierInfo()) { | ||||||
860 | mangleSourceName(II->getName()); | ||||||
861 | break; | ||||||
862 | } | ||||||
863 | |||||||
864 | // Otherwise, an anonymous entity. We must have a declaration. | ||||||
865 | assert(ND && "mangling empty name without declaration")((ND && "mangling empty name without declaration") ? static_cast <void> (0) : __assert_fail ("ND && \"mangling empty name without declaration\"" , "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 865, __PRETTY_FUNCTION__)); | ||||||
866 | |||||||
867 | if (const NamespaceDecl *NS = dyn_cast<NamespaceDecl>(ND)) { | ||||||
868 | if (NS->isAnonymousNamespace()) { | ||||||
869 | Out << "?A0x" << Context.getAnonymousNamespaceHash() << '@'; | ||||||
870 | break; | ||||||
871 | } | ||||||
872 | } | ||||||
873 | |||||||
874 | if (const DecompositionDecl *DD = dyn_cast<DecompositionDecl>(ND)) { | ||||||
875 | // Decomposition declarations are considered anonymous, and get | ||||||
876 | // numbered with a $S prefix. | ||||||
877 | llvm::SmallString<64> Name("$S"); | ||||||
878 | // Get a unique id for the anonymous struct. | ||||||
879 | Name += llvm::utostr(Context.getAnonymousStructId(DD) + 1); | ||||||
880 | mangleSourceName(Name); | ||||||
881 | break; | ||||||
882 | } | ||||||
883 | |||||||
884 | if (const VarDecl *VD = dyn_cast<VarDecl>(ND)) { | ||||||
885 | // We must have an anonymous union or struct declaration. | ||||||
886 | const CXXRecordDecl *RD = VD->getType()->getAsCXXRecordDecl(); | ||||||
887 | assert(RD && "expected variable decl to have a record type")((RD && "expected variable decl to have a record type" ) ? static_cast<void> (0) : __assert_fail ("RD && \"expected variable decl to have a record type\"" , "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 887, __PRETTY_FUNCTION__)); | ||||||
888 | // Anonymous types with no tag or typedef get the name of their | ||||||
889 | // declarator mangled in. If they have no declarator, number them with | ||||||
890 | // a $S prefix. | ||||||
891 | llvm::SmallString<64> Name("$S"); | ||||||
892 | // Get a unique id for the anonymous struct. | ||||||
893 | Name += llvm::utostr(Context.getAnonymousStructId(RD) + 1); | ||||||
894 | mangleSourceName(Name.str()); | ||||||
895 | break; | ||||||
896 | } | ||||||
897 | |||||||
898 | // We must have an anonymous struct. | ||||||
899 | const TagDecl *TD = cast<TagDecl>(ND); | ||||||
900 | if (const TypedefNameDecl *D = TD->getTypedefNameForAnonDecl()) { | ||||||
901 | assert(TD->getDeclContext() == D->getDeclContext() &&((TD->getDeclContext() == D->getDeclContext() && "Typedef should not be in another decl context!") ? static_cast <void> (0) : __assert_fail ("TD->getDeclContext() == D->getDeclContext() && \"Typedef should not be in another decl context!\"" , "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 902, __PRETTY_FUNCTION__)) | ||||||
902 | "Typedef should not be in another decl context!")((TD->getDeclContext() == D->getDeclContext() && "Typedef should not be in another decl context!") ? static_cast <void> (0) : __assert_fail ("TD->getDeclContext() == D->getDeclContext() && \"Typedef should not be in another decl context!\"" , "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 902, __PRETTY_FUNCTION__)); | ||||||
903 | assert(D->getDeclName().getAsIdentifierInfo() &&((D->getDeclName().getAsIdentifierInfo() && "Typedef was not named!" ) ? static_cast<void> (0) : __assert_fail ("D->getDeclName().getAsIdentifierInfo() && \"Typedef was not named!\"" , "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 904, __PRETTY_FUNCTION__)) | ||||||
904 | "Typedef was not named!")((D->getDeclName().getAsIdentifierInfo() && "Typedef was not named!" ) ? static_cast<void> (0) : __assert_fail ("D->getDeclName().getAsIdentifierInfo() && \"Typedef was not named!\"" , "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 904, __PRETTY_FUNCTION__)); | ||||||
905 | mangleSourceName(D->getDeclName().getAsIdentifierInfo()->getName()); | ||||||
906 | break; | ||||||
907 | } | ||||||
908 | |||||||
909 | if (const CXXRecordDecl *Record = dyn_cast<CXXRecordDecl>(TD)) { | ||||||
910 | if (Record->isLambda()) { | ||||||
911 | llvm::SmallString<10> Name("<lambda_"); | ||||||
912 | |||||||
913 | Decl *LambdaContextDecl = Record->getLambdaContextDecl(); | ||||||
914 | unsigned LambdaManglingNumber = Record->getLambdaManglingNumber(); | ||||||
915 | unsigned LambdaId; | ||||||
916 | const ParmVarDecl *Parm = | ||||||
917 | dyn_cast_or_null<ParmVarDecl>(LambdaContextDecl); | ||||||
918 | const FunctionDecl *Func = | ||||||
919 | Parm ? dyn_cast<FunctionDecl>(Parm->getDeclContext()) : nullptr; | ||||||
920 | |||||||
921 | if (Func) { | ||||||
922 | unsigned DefaultArgNo = | ||||||
923 | Func->getNumParams() - Parm->getFunctionScopeIndex(); | ||||||
924 | Name += llvm::utostr(DefaultArgNo); | ||||||
925 | Name += "_"; | ||||||
926 | } | ||||||
927 | |||||||
928 | if (LambdaManglingNumber) | ||||||
929 | LambdaId = LambdaManglingNumber; | ||||||
930 | else | ||||||
931 | LambdaId = Context.getLambdaId(Record); | ||||||
932 | |||||||
933 | Name += llvm::utostr(LambdaId); | ||||||
934 | Name += ">"; | ||||||
935 | |||||||
936 | mangleSourceName(Name); | ||||||
937 | |||||||
938 | // If the context of a closure type is an initializer for a class | ||||||
939 | // member (static or nonstatic), it is encoded in a qualified name. | ||||||
940 | if (LambdaManglingNumber && LambdaContextDecl) { | ||||||
941 | if ((isa<VarDecl>(LambdaContextDecl) || | ||||||
942 | isa<FieldDecl>(LambdaContextDecl)) && | ||||||
943 | LambdaContextDecl->getDeclContext()->isRecord()) { | ||||||
944 | mangleUnqualifiedName(cast<NamedDecl>(LambdaContextDecl)); | ||||||
945 | } | ||||||
946 | } | ||||||
947 | break; | ||||||
948 | } | ||||||
949 | } | ||||||
950 | |||||||
951 | llvm::SmallString<64> Name; | ||||||
952 | if (DeclaratorDecl *DD = | ||||||
953 | Context.getASTContext().getDeclaratorForUnnamedTagDecl(TD)) { | ||||||
954 | // Anonymous types without a name for linkage purposes have their | ||||||
955 | // declarator mangled in if they have one. | ||||||
956 | Name += "<unnamed-type-"; | ||||||
957 | Name += DD->getName(); | ||||||
958 | } else if (TypedefNameDecl *TND = | ||||||
959 | Context.getASTContext().getTypedefNameForUnnamedTagDecl( | ||||||
960 | TD)) { | ||||||
961 | // Anonymous types without a name for linkage purposes have their | ||||||
962 | // associate typedef mangled in if they have one. | ||||||
963 | Name += "<unnamed-type-"; | ||||||
964 | Name += TND->getName(); | ||||||
965 | } else if (isa<EnumDecl>(TD) && | ||||||
966 | cast<EnumDecl>(TD)->enumerator_begin() != | ||||||
967 | cast<EnumDecl>(TD)->enumerator_end()) { | ||||||
968 | // Anonymous non-empty enums mangle in the first enumerator. | ||||||
969 | auto *ED = cast<EnumDecl>(TD); | ||||||
970 | Name += "<unnamed-enum-"; | ||||||
971 | Name += ED->enumerator_begin()->getName(); | ||||||
972 | } else { | ||||||
973 | // Otherwise, number the types using a $S prefix. | ||||||
974 | Name += "<unnamed-type-$S"; | ||||||
975 | Name += llvm::utostr(Context.getAnonymousStructId(TD) + 1); | ||||||
976 | } | ||||||
977 | Name += ">"; | ||||||
978 | mangleSourceName(Name.str()); | ||||||
979 | break; | ||||||
980 | } | ||||||
981 | |||||||
982 | case DeclarationName::ObjCZeroArgSelector: | ||||||
983 | case DeclarationName::ObjCOneArgSelector: | ||||||
984 | case DeclarationName::ObjCMultiArgSelector: { | ||||||
985 | // This is reachable only when constructing an outlined SEH finally | ||||||
986 | // block. Nothing depends on this mangling and it's used only with | ||||||
987 | // functinos with internal linkage. | ||||||
988 | llvm::SmallString<64> Name; | ||||||
989 | mangleSourceName(Name.str()); | ||||||
990 | break; | ||||||
991 | } | ||||||
992 | |||||||
993 | case DeclarationName::CXXConstructorName: | ||||||
994 | if (isStructorDecl(ND)) { | ||||||
995 | if (StructorType == Ctor_CopyingClosure) { | ||||||
996 | Out << "?_O"; | ||||||
997 | return; | ||||||
998 | } | ||||||
999 | if (StructorType == Ctor_DefaultClosure) { | ||||||
1000 | Out << "?_F"; | ||||||
1001 | return; | ||||||
1002 | } | ||||||
1003 | } | ||||||
1004 | Out << "?0"; | ||||||
1005 | return; | ||||||
1006 | |||||||
1007 | case DeclarationName::CXXDestructorName: | ||||||
1008 | if (isStructorDecl(ND)) | ||||||
1009 | // If the named decl is the C++ destructor we're mangling, | ||||||
1010 | // use the type we were given. | ||||||
1011 | mangleCXXDtorType(static_cast<CXXDtorType>(StructorType)); | ||||||
1012 | else | ||||||
1013 | // Otherwise, use the base destructor name. This is relevant if a | ||||||
1014 | // class with a destructor is declared within a destructor. | ||||||
1015 | mangleCXXDtorType(Dtor_Base); | ||||||
1016 | break; | ||||||
1017 | |||||||
1018 | case DeclarationName::CXXConversionFunctionName: | ||||||
1019 | // <operator-name> ::= ?B # (cast) | ||||||
1020 | // The target type is encoded as the return type. | ||||||
1021 | Out << "?B"; | ||||||
1022 | break; | ||||||
1023 | |||||||
1024 | case DeclarationName::CXXOperatorName: | ||||||
1025 | mangleOperatorName(Name.getCXXOverloadedOperator(), ND->getLocation()); | ||||||
1026 | break; | ||||||
1027 | |||||||
1028 | case DeclarationName::CXXLiteralOperatorName: { | ||||||
1029 | Out << "?__K"; | ||||||
1030 | mangleSourceName(Name.getCXXLiteralIdentifier()->getName()); | ||||||
1031 | break; | ||||||
1032 | } | ||||||
1033 | |||||||
1034 | case DeclarationName::CXXDeductionGuideName: | ||||||
1035 | llvm_unreachable("Can't mangle a deduction guide name!")::llvm::llvm_unreachable_internal("Can't mangle a deduction guide name!" , "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 1035); | ||||||
1036 | |||||||
1037 | case DeclarationName::CXXUsingDirective: | ||||||
1038 | llvm_unreachable("Can't mangle a using directive name!")::llvm::llvm_unreachable_internal("Can't mangle a using directive name!" , "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 1038); | ||||||
1039 | } | ||||||
1040 | } | ||||||
1041 | |||||||
1042 | // <postfix> ::= <unqualified-name> [<postfix>] | ||||||
1043 | // ::= <substitution> [<postfix>] | ||||||
1044 | void MicrosoftCXXNameMangler::mangleNestedName(const NamedDecl *ND) { | ||||||
1045 | const DeclContext *DC = getEffectiveDeclContext(ND); | ||||||
1046 | while (!DC->isTranslationUnit()) { | ||||||
1047 | if (isa<TagDecl>(ND) || isa<VarDecl>(ND)) { | ||||||
1048 | unsigned Disc; | ||||||
1049 | if (Context.getNextDiscriminator(ND, Disc)) { | ||||||
1050 | Out << '?'; | ||||||
1051 | mangleNumber(Disc); | ||||||
1052 | Out << '?'; | ||||||
1053 | } | ||||||
1054 | } | ||||||
1055 | |||||||
1056 | if (const BlockDecl *BD = dyn_cast<BlockDecl>(DC)) { | ||||||
1057 | auto Discriminate = | ||||||
1058 | [](StringRef Name, const unsigned Discriminator, | ||||||
1059 | const unsigned ParameterDiscriminator) -> std::string { | ||||||
1060 | std::string Buffer; | ||||||
1061 | llvm::raw_string_ostream Stream(Buffer); | ||||||
1062 | Stream << Name; | ||||||
1063 | if (Discriminator) | ||||||
1064 | Stream << '_' << Discriminator; | ||||||
1065 | if (ParameterDiscriminator) | ||||||
1066 | Stream << '_' << ParameterDiscriminator; | ||||||
1067 | return Stream.str(); | ||||||
1068 | }; | ||||||
1069 | |||||||
1070 | unsigned Discriminator = BD->getBlockManglingNumber(); | ||||||
1071 | if (!Discriminator) | ||||||
1072 | Discriminator = Context.getBlockId(BD, /*Local=*/false); | ||||||
1073 | |||||||
1074 | // Mangle the parameter position as a discriminator to deal with unnamed | ||||||
1075 | // parameters. Rather than mangling the unqualified parameter name, | ||||||
1076 | // always use the position to give a uniform mangling. | ||||||
1077 | unsigned ParameterDiscriminator = 0; | ||||||
1078 | if (const auto *MC = BD->getBlockManglingContextDecl()) | ||||||
1079 | if (const auto *P = dyn_cast<ParmVarDecl>(MC)) | ||||||
1080 | if (const auto *F = dyn_cast<FunctionDecl>(P->getDeclContext())) | ||||||
1081 | ParameterDiscriminator = | ||||||
1082 | F->getNumParams() - P->getFunctionScopeIndex(); | ||||||
1083 | |||||||
1084 | DC = getEffectiveDeclContext(BD); | ||||||
1085 | |||||||
1086 | Out << '?'; | ||||||
1087 | mangleSourceName(Discriminate("_block_invoke", Discriminator, | ||||||
1088 | ParameterDiscriminator)); | ||||||
1089 | // If we have a block mangling context, encode that now. This allows us | ||||||
1090 | // to discriminate between named static data initializers in the same | ||||||
1091 | // scope. This is handled differently from parameters, which use | ||||||
1092 | // positions to discriminate between multiple instances. | ||||||
1093 | if (const auto *MC = BD->getBlockManglingContextDecl()) | ||||||
1094 | if (!isa<ParmVarDecl>(MC)) | ||||||
1095 | if (const auto *ND = dyn_cast<NamedDecl>(MC)) | ||||||
1096 | mangleUnqualifiedName(ND); | ||||||
1097 | // MS ABI and Itanium manglings are in inverted scopes. In the case of a | ||||||
1098 | // RecordDecl, mangle the entire scope hierarchy at this point rather than | ||||||
1099 | // just the unqualified name to get the ordering correct. | ||||||
1100 | if (const auto *RD = dyn_cast<RecordDecl>(DC)) | ||||||
1101 | mangleName(RD); | ||||||
1102 | else | ||||||
1103 | Out << '@'; | ||||||
1104 | // void __cdecl | ||||||
1105 | Out << "YAX"; | ||||||
1106 | // struct __block_literal * | ||||||
1107 | Out << 'P'; | ||||||
1108 | // __ptr64 | ||||||
1109 | if (PointersAre64Bit) | ||||||
1110 | Out << 'E'; | ||||||
1111 | Out << 'A'; | ||||||
1112 | mangleArtificialTagType(TTK_Struct, | ||||||
1113 | Discriminate("__block_literal", Discriminator, | ||||||
1114 | ParameterDiscriminator)); | ||||||
1115 | Out << "@Z"; | ||||||
1116 | |||||||
1117 | // If the effective context was a Record, we have fully mangled the | ||||||
1118 | // qualified name and do not need to continue. | ||||||
1119 | if (isa<RecordDecl>(DC)) | ||||||
1120 | break; | ||||||
1121 | continue; | ||||||
1122 | } else if (const ObjCMethodDecl *Method = dyn_cast<ObjCMethodDecl>(DC)) { | ||||||
1123 | mangleObjCMethodName(Method); | ||||||
1124 | } else if (isa<NamedDecl>(DC)) { | ||||||
1125 | ND = cast<NamedDecl>(DC); | ||||||
1126 | if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(ND)) { | ||||||
1127 | mangle(FD, "?"); | ||||||
1128 | break; | ||||||
1129 | } else { | ||||||
1130 | mangleUnqualifiedName(ND); | ||||||
1131 | // Lambdas in default arguments conceptually belong to the function the | ||||||
1132 | // parameter corresponds to. | ||||||
1133 | if (const auto *LDADC = getLambdaDefaultArgumentDeclContext(ND)) { | ||||||
1134 | DC = LDADC; | ||||||
1135 | continue; | ||||||
1136 | } | ||||||
1137 | } | ||||||
1138 | } | ||||||
1139 | DC = DC->getParent(); | ||||||
1140 | } | ||||||
1141 | } | ||||||
1142 | |||||||
1143 | void MicrosoftCXXNameMangler::mangleCXXDtorType(CXXDtorType T) { | ||||||
1144 | // Microsoft uses the names on the case labels for these dtor variants. Clang | ||||||
1145 | // uses the Itanium terminology internally. Everything in this ABI delegates | ||||||
1146 | // towards the base dtor. | ||||||
1147 | switch (T) { | ||||||
1148 | // <operator-name> ::= ?1 # destructor | ||||||
1149 | case Dtor_Base: Out << "?1"; return; | ||||||
1150 | // <operator-name> ::= ?_D # vbase destructor | ||||||
1151 | case Dtor_Complete: Out << "?_D"; return; | ||||||
1152 | // <operator-name> ::= ?_G # scalar deleting destructor | ||||||
1153 | case Dtor_Deleting: Out << "?_G"; return; | ||||||
1154 | // <operator-name> ::= ?_E # vector deleting destructor | ||||||
1155 | // FIXME: Add a vector deleting dtor type. It goes in the vtable, so we need | ||||||
1156 | // it. | ||||||
1157 | case Dtor_Comdat: | ||||||
1158 | llvm_unreachable("not expecting a COMDAT")::llvm::llvm_unreachable_internal("not expecting a COMDAT", "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 1158); | ||||||
1159 | } | ||||||
1160 | llvm_unreachable("Unsupported dtor type?")::llvm::llvm_unreachable_internal("Unsupported dtor type?", "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 1160); | ||||||
1161 | } | ||||||
1162 | |||||||
1163 | void MicrosoftCXXNameMangler::mangleOperatorName(OverloadedOperatorKind OO, | ||||||
1164 | SourceLocation Loc) { | ||||||
1165 | switch (OO) { | ||||||
1166 | // ?0 # constructor | ||||||
1167 | // ?1 # destructor | ||||||
1168 | // <operator-name> ::= ?2 # new | ||||||
1169 | case OO_New: Out << "?2"; break; | ||||||
1170 | // <operator-name> ::= ?3 # delete | ||||||
1171 | case OO_Delete: Out << "?3"; break; | ||||||
1172 | // <operator-name> ::= ?4 # = | ||||||
1173 | case OO_Equal: Out << "?4"; break; | ||||||
1174 | // <operator-name> ::= ?5 # >> | ||||||
1175 | case OO_GreaterGreater: Out << "?5"; break; | ||||||
1176 | // <operator-name> ::= ?6 # << | ||||||
1177 | case OO_LessLess: Out << "?6"; break; | ||||||
1178 | // <operator-name> ::= ?7 # ! | ||||||
1179 | case OO_Exclaim: Out << "?7"; break; | ||||||
1180 | // <operator-name> ::= ?8 # == | ||||||
1181 | case OO_EqualEqual: Out << "?8"; break; | ||||||
1182 | // <operator-name> ::= ?9 # != | ||||||
1183 | case OO_ExclaimEqual: Out << "?9"; break; | ||||||
1184 | // <operator-name> ::= ?A # [] | ||||||
1185 | case OO_Subscript: Out << "?A"; break; | ||||||
1186 | // ?B # conversion | ||||||
1187 | // <operator-name> ::= ?C # -> | ||||||
1188 | case OO_Arrow: Out << "?C"; break; | ||||||
1189 | // <operator-name> ::= ?D # * | ||||||
1190 | case OO_Star: Out << "?D"; break; | ||||||
1191 | // <operator-name> ::= ?E # ++ | ||||||
1192 | case OO_PlusPlus: Out << "?E"; break; | ||||||
1193 | // <operator-name> ::= ?F # -- | ||||||
1194 | case OO_MinusMinus: Out << "?F"; break; | ||||||
1195 | // <operator-name> ::= ?G # - | ||||||
1196 | case OO_Minus: Out << "?G"; break; | ||||||
1197 | // <operator-name> ::= ?H # + | ||||||
1198 | case OO_Plus: Out << "?H"; break; | ||||||
1199 | // <operator-name> ::= ?I # & | ||||||
1200 | case OO_Amp: Out << "?I"; break; | ||||||
1201 | // <operator-name> ::= ?J # ->* | ||||||
1202 | case OO_ArrowStar: Out << "?J"; break; | ||||||
1203 | // <operator-name> ::= ?K # / | ||||||
1204 | case OO_Slash: Out << "?K"; break; | ||||||
1205 | // <operator-name> ::= ?L # % | ||||||
1206 | case OO_Percent: Out << "?L"; break; | ||||||
1207 | // <operator-name> ::= ?M # < | ||||||
1208 | case OO_Less: Out << "?M"; break; | ||||||
1209 | // <operator-name> ::= ?N # <= | ||||||
1210 | case OO_LessEqual: Out << "?N"; break; | ||||||
1211 | // <operator-name> ::= ?O # > | ||||||
1212 | case OO_Greater: Out << "?O"; break; | ||||||
1213 | // <operator-name> ::= ?P # >= | ||||||
1214 | case OO_GreaterEqual: Out << "?P"; break; | ||||||
1215 | // <operator-name> ::= ?Q # , | ||||||
1216 | case OO_Comma: Out << "?Q"; break; | ||||||
1217 | // <operator-name> ::= ?R # () | ||||||
1218 | case OO_Call: Out << "?R"; break; | ||||||
1219 | // <operator-name> ::= ?S # ~ | ||||||
1220 | case OO_Tilde: Out << "?S"; break; | ||||||
1221 | // <operator-name> ::= ?T # ^ | ||||||
1222 | case OO_Caret: Out << "?T"; break; | ||||||
1223 | // <operator-name> ::= ?U # | | ||||||
1224 | case OO_Pipe: Out << "?U"; break; | ||||||
1225 | // <operator-name> ::= ?V # && | ||||||
1226 | case OO_AmpAmp: Out << "?V"; break; | ||||||
1227 | // <operator-name> ::= ?W # || | ||||||
1228 | case OO_PipePipe: Out << "?W"; break; | ||||||
1229 | // <operator-name> ::= ?X # *= | ||||||
1230 | case OO_StarEqual: Out << "?X"; break; | ||||||
1231 | // <operator-name> ::= ?Y # += | ||||||
1232 | case OO_PlusEqual: Out << "?Y"; break; | ||||||
1233 | // <operator-name> ::= ?Z # -= | ||||||
1234 | case OO_MinusEqual: Out << "?Z"; break; | ||||||
1235 | // <operator-name> ::= ?_0 # /= | ||||||
1236 | case OO_SlashEqual: Out << "?_0"; break; | ||||||
1237 | // <operator-name> ::= ?_1 # %= | ||||||
1238 | case OO_PercentEqual: Out << "?_1"; break; | ||||||
1239 | // <operator-name> ::= ?_2 # >>= | ||||||
1240 | case OO_GreaterGreaterEqual: Out << "?_2"; break; | ||||||
1241 | // <operator-name> ::= ?_3 # <<= | ||||||
1242 | case OO_LessLessEqual: Out << "?_3"; break; | ||||||
1243 | // <operator-name> ::= ?_4 # &= | ||||||
1244 | case OO_AmpEqual: Out << "?_4"; break; | ||||||
1245 | // <operator-name> ::= ?_5 # |= | ||||||
1246 | case OO_PipeEqual: Out << "?_5"; break; | ||||||
1247 | // <operator-name> ::= ?_6 # ^= | ||||||
1248 | case OO_CaretEqual: Out << "?_6"; break; | ||||||
1249 | // ?_7 # vftable | ||||||
1250 | // ?_8 # vbtable | ||||||
1251 | // ?_9 # vcall | ||||||
1252 | // ?_A # typeof | ||||||
1253 | // ?_B # local static guard | ||||||
1254 | // ?_C # string | ||||||
1255 | // ?_D # vbase destructor | ||||||
1256 | // ?_E # vector deleting destructor | ||||||
1257 | // ?_F # default constructor closure | ||||||
1258 | // ?_G # scalar deleting destructor | ||||||
1259 | // ?_H # vector constructor iterator | ||||||
1260 | // ?_I # vector destructor iterator | ||||||
1261 | // ?_J # vector vbase constructor iterator | ||||||
1262 | // ?_K # virtual displacement map | ||||||
1263 | // ?_L # eh vector constructor iterator | ||||||
1264 | // ?_M # eh vector destructor iterator | ||||||
1265 | // ?_N # eh vector vbase constructor iterator | ||||||
1266 | // ?_O # copy constructor closure | ||||||
1267 | // ?_P<name> # udt returning <name> | ||||||
1268 | // ?_Q # <unknown> | ||||||
1269 | // ?_R0 # RTTI Type Descriptor | ||||||
1270 | // ?_R1 # RTTI Base Class Descriptor at (a,b,c,d) | ||||||
1271 | // ?_R2 # RTTI Base Class Array | ||||||
1272 | // ?_R3 # RTTI Class Hierarchy Descriptor | ||||||
1273 | // ?_R4 # RTTI Complete Object Locator | ||||||
1274 | // ?_S # local vftable | ||||||
1275 | // ?_T # local vftable constructor closure | ||||||
1276 | // <operator-name> ::= ?_U # new[] | ||||||
1277 | case OO_Array_New: Out << "?_U"; break; | ||||||
1278 | // <operator-name> ::= ?_V # delete[] | ||||||
1279 | case OO_Array_Delete: Out << "?_V"; break; | ||||||
1280 | // <operator-name> ::= ?__L # co_await | ||||||
1281 | case OO_Coawait: Out << "?__L"; break; | ||||||
1282 | // <operator-name> ::= ?__M # <=> | ||||||
1283 | case OO_Spaceship: Out << "?__M"; break; | ||||||
1284 | |||||||
1285 | case OO_Conditional: { | ||||||
1286 | DiagnosticsEngine &Diags = Context.getDiags(); | ||||||
1287 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, | ||||||
1288 | "cannot mangle this conditional operator yet"); | ||||||
1289 | Diags.Report(Loc, DiagID); | ||||||
1290 | break; | ||||||
1291 | } | ||||||
1292 | |||||||
1293 | case OO_None: | ||||||
1294 | case NUM_OVERLOADED_OPERATORS: | ||||||
1295 | llvm_unreachable("Not an overloaded operator")::llvm::llvm_unreachable_internal("Not an overloaded operator" , "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 1295); | ||||||
1296 | } | ||||||
1297 | } | ||||||
1298 | |||||||
1299 | void MicrosoftCXXNameMangler::mangleSourceName(StringRef Name) { | ||||||
1300 | // <source name> ::= <identifier> @ | ||||||
1301 | BackRefVec::iterator Found = llvm::find(NameBackReferences, Name); | ||||||
1302 | if (Found == NameBackReferences.end()) { | ||||||
1303 | if (NameBackReferences.size() < 10) | ||||||
1304 | NameBackReferences.push_back(Name); | ||||||
1305 | Out << Name << '@'; | ||||||
1306 | } else { | ||||||
1307 | Out << (Found - NameBackReferences.begin()); | ||||||
1308 | } | ||||||
1309 | } | ||||||
1310 | |||||||
1311 | void MicrosoftCXXNameMangler::mangleObjCMethodName(const ObjCMethodDecl *MD) { | ||||||
1312 | Context.mangleObjCMethodName(MD, Out); | ||||||
1313 | } | ||||||
1314 | |||||||
1315 | void MicrosoftCXXNameMangler::mangleTemplateInstantiationName( | ||||||
1316 | const TemplateDecl *TD, const TemplateArgumentList &TemplateArgs) { | ||||||
1317 | // <template-name> ::= <unscoped-template-name> <template-args> | ||||||
1318 | // ::= <substitution> | ||||||
1319 | // Always start with the unqualified name. | ||||||
1320 | |||||||
1321 | // Templates have their own context for back references. | ||||||
1322 | ArgBackRefMap OuterFunArgsContext; | ||||||
1323 | ArgBackRefMap OuterTemplateArgsContext; | ||||||
1324 | BackRefVec OuterTemplateContext; | ||||||
1325 | PassObjectSizeArgsSet OuterPassObjectSizeArgs; | ||||||
1326 | NameBackReferences.swap(OuterTemplateContext); | ||||||
1327 | FunArgBackReferences.swap(OuterFunArgsContext); | ||||||
1328 | TemplateArgBackReferences.swap(OuterTemplateArgsContext); | ||||||
1329 | PassObjectSizeArgs.swap(OuterPassObjectSizeArgs); | ||||||
1330 | |||||||
1331 | mangleUnscopedTemplateName(TD); | ||||||
1332 | mangleTemplateArgs(TD, TemplateArgs); | ||||||
1333 | |||||||
1334 | // Restore the previous back reference contexts. | ||||||
1335 | NameBackReferences.swap(OuterTemplateContext); | ||||||
1336 | FunArgBackReferences.swap(OuterFunArgsContext); | ||||||
1337 | TemplateArgBackReferences.swap(OuterTemplateArgsContext); | ||||||
1338 | PassObjectSizeArgs.swap(OuterPassObjectSizeArgs); | ||||||
1339 | } | ||||||
1340 | |||||||
1341 | void | ||||||
1342 | MicrosoftCXXNameMangler::mangleUnscopedTemplateName(const TemplateDecl *TD) { | ||||||
1343 | // <unscoped-template-name> ::= ?$ <unqualified-name> | ||||||
1344 | Out << "?$"; | ||||||
1345 | mangleUnqualifiedName(TD); | ||||||
1346 | } | ||||||
1347 | |||||||
1348 | void MicrosoftCXXNameMangler::mangleIntegerLiteral(const llvm::APSInt &Value, | ||||||
1349 | bool IsBoolean) { | ||||||
1350 | // <integer-literal> ::= $0 <number> | ||||||
1351 | Out << "$0"; | ||||||
1352 | // Make sure booleans are encoded as 0/1. | ||||||
1353 | if (IsBoolean && Value.getBoolValue()) | ||||||
1354 | mangleNumber(1); | ||||||
1355 | else if (Value.isSigned()) | ||||||
1356 | mangleNumber(Value.getSExtValue()); | ||||||
1357 | else | ||||||
1358 | mangleNumber(Value.getZExtValue()); | ||||||
1359 | } | ||||||
1360 | |||||||
1361 | void MicrosoftCXXNameMangler::mangleExpression(const Expr *E) { | ||||||
1362 | // See if this is a constant expression. | ||||||
1363 | llvm::APSInt Value; | ||||||
1364 | if (E->isIntegerConstantExpr(Value, Context.getASTContext())) { | ||||||
1365 | mangleIntegerLiteral(Value, E->getType()->isBooleanType()); | ||||||
1366 | return; | ||||||
1367 | } | ||||||
1368 | |||||||
1369 | // Look through no-op casts like template parameter substitutions. | ||||||
1370 | E = E->IgnoreParenNoopCasts(Context.getASTContext()); | ||||||
1371 | |||||||
1372 | const CXXUuidofExpr *UE = nullptr; | ||||||
1373 | if (const UnaryOperator *UO = dyn_cast<UnaryOperator>(E)) { | ||||||
1374 | if (UO->getOpcode() == UO_AddrOf) | ||||||
1375 | UE = dyn_cast<CXXUuidofExpr>(UO->getSubExpr()); | ||||||
1376 | } else | ||||||
1377 | UE = dyn_cast<CXXUuidofExpr>(E); | ||||||
1378 | |||||||
1379 | if (UE) { | ||||||
1380 | // If we had to peek through an address-of operator, treat this like we are | ||||||
1381 | // dealing with a pointer type. Otherwise, treat it like a const reference. | ||||||
1382 | // | ||||||
1383 | // N.B. This matches up with the handling of TemplateArgument::Declaration | ||||||
1384 | // in mangleTemplateArg | ||||||
1385 | if (UE == E) | ||||||
1386 | Out << "$E?"; | ||||||
1387 | else | ||||||
1388 | Out << "$1?"; | ||||||
1389 | |||||||
1390 | // This CXXUuidofExpr is mangled as-if it were actually a VarDecl from | ||||||
1391 | // const __s_GUID _GUID_{lower case UUID with underscores} | ||||||
1392 | StringRef Uuid = UE->getUuidStr(); | ||||||
1393 | std::string Name = "_GUID_" + Uuid.lower(); | ||||||
1394 | std::replace(Name.begin(), Name.end(), '-', '_'); | ||||||
1395 | |||||||
1396 | mangleSourceName(Name); | ||||||
1397 | // Terminate the whole name with an '@'. | ||||||
1398 | Out << '@'; | ||||||
1399 | // It's a global variable. | ||||||
1400 | Out << '3'; | ||||||
1401 | // It's a struct called __s_GUID. | ||||||
1402 | mangleArtificialTagType(TTK_Struct, "__s_GUID"); | ||||||
1403 | // It's const. | ||||||
1404 | Out << 'B'; | ||||||
1405 | return; | ||||||
1406 | } | ||||||
1407 | |||||||
1408 | // As bad as this diagnostic is, it's better than crashing. | ||||||
1409 | DiagnosticsEngine &Diags = Context.getDiags(); | ||||||
1410 | unsigned DiagID = Diags.getCustomDiagID( | ||||||
1411 | DiagnosticsEngine::Error, "cannot yet mangle expression type %0"); | ||||||
1412 | Diags.Report(E->getExprLoc(), DiagID) << E->getStmtClassName() | ||||||
1413 | << E->getSourceRange(); | ||||||
1414 | } | ||||||
1415 | |||||||
1416 | void MicrosoftCXXNameMangler::mangleTemplateArgs( | ||||||
1417 | const TemplateDecl *TD, const TemplateArgumentList &TemplateArgs) { | ||||||
1418 | // <template-args> ::= <template-arg>+ | ||||||
1419 | const TemplateParameterList *TPL = TD->getTemplateParameters(); | ||||||
1420 | assert(TPL->size() == TemplateArgs.size() &&((TPL->size() == TemplateArgs.size() && "size mismatch between args and parms!" ) ? static_cast<void> (0) : __assert_fail ("TPL->size() == TemplateArgs.size() && \"size mismatch between args and parms!\"" , "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 1421, __PRETTY_FUNCTION__)) | ||||||
1421 | "size mismatch between args and parms!")((TPL->size() == TemplateArgs.size() && "size mismatch between args and parms!" ) ? static_cast<void> (0) : __assert_fail ("TPL->size() == TemplateArgs.size() && \"size mismatch between args and parms!\"" , "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 1421, __PRETTY_FUNCTION__)); | ||||||
1422 | |||||||
1423 | for (size_t i = 0; i < TemplateArgs.size(); ++i) { | ||||||
1424 | const TemplateArgument &TA = TemplateArgs[i]; | ||||||
1425 | |||||||
1426 | // Separate consecutive packs by $$Z. | ||||||
1427 | if (i > 0 && TA.getKind() == TemplateArgument::Pack && | ||||||
1428 | TemplateArgs[i - 1].getKind() == TemplateArgument::Pack) | ||||||
1429 | Out << "$$Z"; | ||||||
1430 | |||||||
1431 | mangleTemplateArg(TD, TA, TPL->getParam(i)); | ||||||
1432 | } | ||||||
1433 | } | ||||||
1434 | |||||||
1435 | void MicrosoftCXXNameMangler::mangleTemplateArg(const TemplateDecl *TD, | ||||||
1436 | const TemplateArgument &TA, | ||||||
1437 | const NamedDecl *Parm) { | ||||||
1438 | // <template-arg> ::= <type> | ||||||
1439 | // ::= <integer-literal> | ||||||
1440 | // ::= <member-data-pointer> | ||||||
1441 | // ::= <member-function-pointer> | ||||||
1442 | // ::= $E? <name> <type-encoding> | ||||||
1443 | // ::= $1? <name> <type-encoding> | ||||||
1444 | // ::= $0A@ | ||||||
1445 | // ::= <template-args> | ||||||
1446 | |||||||
1447 | switch (TA.getKind()) { | ||||||
1448 | case TemplateArgument::Null: | ||||||
1449 | llvm_unreachable("Can't mangle null template arguments!")::llvm::llvm_unreachable_internal("Can't mangle null template arguments!" , "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 1449); | ||||||
1450 | case TemplateArgument::TemplateExpansion: | ||||||
1451 | llvm_unreachable("Can't mangle template expansion arguments!")::llvm::llvm_unreachable_internal("Can't mangle template expansion arguments!" , "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 1451); | ||||||
1452 | case TemplateArgument::Type: { | ||||||
1453 | QualType T = TA.getAsType(); | ||||||
1454 | mangleType(T, SourceRange(), QMM_Escape); | ||||||
1455 | break; | ||||||
1456 | } | ||||||
1457 | case TemplateArgument::Declaration: { | ||||||
1458 | const NamedDecl *ND = TA.getAsDecl(); | ||||||
1459 | if (isa<FieldDecl>(ND) || isa<IndirectFieldDecl>(ND)) { | ||||||
1460 | mangleMemberDataPointer(cast<CXXRecordDecl>(ND->getDeclContext()) | ||||||
1461 | ->getMostRecentNonInjectedDecl(), | ||||||
1462 | cast<ValueDecl>(ND)); | ||||||
1463 | } else if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(ND)) { | ||||||
1464 | const CXXMethodDecl *MD = dyn_cast<CXXMethodDecl>(FD); | ||||||
1465 | if (MD && MD->isInstance()) { | ||||||
1466 | mangleMemberFunctionPointer( | ||||||
1467 | MD->getParent()->getMostRecentNonInjectedDecl(), MD); | ||||||
1468 | } else { | ||||||
1469 | Out << "$1?"; | ||||||
1470 | mangleName(FD); | ||||||
1471 | mangleFunctionEncoding(FD, /*ShouldMangle=*/true); | ||||||
1472 | } | ||||||
1473 | } else { | ||||||
1474 | mangle(ND, TA.getParamTypeForDecl()->isReferenceType() ? "$E?" : "$1?"); | ||||||
1475 | } | ||||||
1476 | break; | ||||||
1477 | } | ||||||
1478 | case TemplateArgument::Integral: | ||||||
1479 | mangleIntegerLiteral(TA.getAsIntegral(), | ||||||
1480 | TA.getIntegralType()->isBooleanType()); | ||||||
1481 | break; | ||||||
1482 | case TemplateArgument::NullPtr: { | ||||||
1483 | QualType T = TA.getNullPtrType(); | ||||||
1484 | if (const MemberPointerType *MPT = T->getAs<MemberPointerType>()) { | ||||||
1485 | const CXXRecordDecl *RD = MPT->getMostRecentCXXRecordDecl(); | ||||||
1486 | if (MPT->isMemberFunctionPointerType() && | ||||||
1487 | !isa<FunctionTemplateDecl>(TD)) { | ||||||
1488 | mangleMemberFunctionPointer(RD, nullptr); | ||||||
1489 | return; | ||||||
1490 | } | ||||||
1491 | if (MPT->isMemberDataPointer()) { | ||||||
1492 | if (!isa<FunctionTemplateDecl>(TD)) { | ||||||
1493 | mangleMemberDataPointer(RD, nullptr); | ||||||
1494 | return; | ||||||
1495 | } | ||||||
1496 | // nullptr data pointers are always represented with a single field | ||||||
1497 | // which is initialized with either 0 or -1. Why -1? Well, we need to | ||||||
1498 | // distinguish the case where the data member is at offset zero in the | ||||||
1499 | // record. | ||||||
1500 | // However, we are free to use 0 *if* we would use multiple fields for | ||||||
1501 | // non-nullptr member pointers. | ||||||
1502 | if (!RD->nullFieldOffsetIsZero()) { | ||||||
1503 | mangleIntegerLiteral(llvm::APSInt::get(-1), /*IsBoolean=*/false); | ||||||
1504 | return; | ||||||
1505 | } | ||||||
1506 | } | ||||||
1507 | } | ||||||
1508 | mangleIntegerLiteral(llvm::APSInt::getUnsigned(0), /*IsBoolean=*/false); | ||||||
1509 | break; | ||||||
1510 | } | ||||||
1511 | case TemplateArgument::Expression: | ||||||
1512 | mangleExpression(TA.getAsExpr()); | ||||||
1513 | break; | ||||||
1514 | case TemplateArgument::Pack: { | ||||||
1515 | ArrayRef<TemplateArgument> TemplateArgs = TA.getPackAsArray(); | ||||||
1516 | if (TemplateArgs.empty()) { | ||||||
1517 | if (isa<TemplateTypeParmDecl>(Parm) || | ||||||
1518 | isa<TemplateTemplateParmDecl>(Parm)) | ||||||
1519 | // MSVC 2015 changed the mangling for empty expanded template packs, | ||||||
1520 | // use the old mangling for link compatibility for old versions. | ||||||
1521 | Out << (Context.getASTContext().getLangOpts().isCompatibleWithMSVC( | ||||||
1522 | LangOptions::MSVC2015) | ||||||
1523 | ? "$$V" | ||||||
1524 | : "$$$V"); | ||||||
1525 | else if (isa<NonTypeTemplateParmDecl>(Parm)) | ||||||
1526 | Out << "$S"; | ||||||
1527 | else | ||||||
1528 | llvm_unreachable("unexpected template parameter decl!")::llvm::llvm_unreachable_internal("unexpected template parameter decl!" , "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 1528); | ||||||
1529 | } else { | ||||||
1530 | for (const TemplateArgument &PA : TemplateArgs) | ||||||
1531 | mangleTemplateArg(TD, PA, Parm); | ||||||
1532 | } | ||||||
1533 | break; | ||||||
1534 | } | ||||||
1535 | case TemplateArgument::Template: { | ||||||
1536 | const NamedDecl *ND = | ||||||
1537 | TA.getAsTemplate().getAsTemplateDecl()->getTemplatedDecl(); | ||||||
1538 | if (const auto *TD = dyn_cast<TagDecl>(ND)) { | ||||||
1539 | mangleType(TD); | ||||||
1540 | } else if (isa<TypeAliasDecl>(ND)) { | ||||||
1541 | Out << "$$Y"; | ||||||
1542 | mangleName(ND); | ||||||
1543 | } else { | ||||||
1544 | llvm_unreachable("unexpected template template NamedDecl!")::llvm::llvm_unreachable_internal("unexpected template template NamedDecl!" , "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 1544); | ||||||
1545 | } | ||||||
1546 | break; | ||||||
1547 | } | ||||||
1548 | } | ||||||
1549 | } | ||||||
1550 | |||||||
1551 | void MicrosoftCXXNameMangler::mangleObjCProtocol(const ObjCProtocolDecl *PD) { | ||||||
1552 | llvm::SmallString<64> TemplateMangling; | ||||||
1553 | llvm::raw_svector_ostream Stream(TemplateMangling); | ||||||
1554 | MicrosoftCXXNameMangler Extra(Context, Stream); | ||||||
1555 | |||||||
1556 | Stream << "?$"; | ||||||
1557 | Extra.mangleSourceName("Protocol"); | ||||||
1558 | Extra.mangleArtificialTagType(TTK_Struct, PD->getName()); | ||||||
1559 | |||||||
1560 | mangleArtificialTagType(TTK_Struct, TemplateMangling, {"__ObjC"}); | ||||||
1561 | } | ||||||
1562 | |||||||
1563 | void MicrosoftCXXNameMangler::mangleObjCLifetime(const QualType Type, | ||||||
1564 | Qualifiers Quals, | ||||||
1565 | SourceRange Range) { | ||||||
1566 | llvm::SmallString<64> TemplateMangling; | ||||||
1567 | llvm::raw_svector_ostream Stream(TemplateMangling); | ||||||
1568 | MicrosoftCXXNameMangler Extra(Context, Stream); | ||||||
1569 | |||||||
1570 | Stream << "?$"; | ||||||
1571 | switch (Quals.getObjCLifetime()) { | ||||||
1572 | case Qualifiers::OCL_None: | ||||||
1573 | case Qualifiers::OCL_ExplicitNone: | ||||||
1574 | break; | ||||||
1575 | case Qualifiers::OCL_Autoreleasing: | ||||||
1576 | Extra.mangleSourceName("Autoreleasing"); | ||||||
1577 | break; | ||||||
1578 | case Qualifiers::OCL_Strong: | ||||||
1579 | Extra.mangleSourceName("Strong"); | ||||||
1580 | break; | ||||||
1581 | case Qualifiers::OCL_Weak: | ||||||
1582 | Extra.mangleSourceName("Weak"); | ||||||
1583 | break; | ||||||
1584 | } | ||||||
1585 | Extra.manglePointerCVQualifiers(Quals); | ||||||
1586 | Extra.manglePointerExtQualifiers(Quals, Type); | ||||||
1587 | Extra.mangleType(Type, Range); | ||||||
1588 | |||||||
1589 | mangleArtificialTagType(TTK_Struct, TemplateMangling, {"__ObjC"}); | ||||||
1590 | } | ||||||
1591 | |||||||
1592 | void MicrosoftCXXNameMangler::mangleObjCKindOfType(const ObjCObjectType *T, | ||||||
1593 | Qualifiers Quals, | ||||||
1594 | SourceRange Range) { | ||||||
1595 | llvm::SmallString<64> TemplateMangling; | ||||||
1596 | llvm::raw_svector_ostream Stream(TemplateMangling); | ||||||
1597 | MicrosoftCXXNameMangler Extra(Context, Stream); | ||||||
1598 | |||||||
1599 | Stream << "?$"; | ||||||
1600 | Extra.mangleSourceName("KindOf"); | ||||||
1601 | Extra.mangleType(QualType(T, 0) | ||||||
1602 | .stripObjCKindOfType(getASTContext()) | ||||||
1603 | ->getAs<ObjCObjectType>(), | ||||||
1604 | Quals, Range); | ||||||
1605 | |||||||
1606 | mangleArtificialTagType(TTK_Struct, TemplateMangling, {"__ObjC"}); | ||||||
1607 | } | ||||||
1608 | |||||||
1609 | void MicrosoftCXXNameMangler::mangleQualifiers(Qualifiers Quals, | ||||||
1610 | bool IsMember) { | ||||||
1611 | // <cvr-qualifiers> ::= [E] [F] [I] <base-cvr-qualifiers> | ||||||
1612 | // 'E' means __ptr64 (32-bit only); 'F' means __unaligned (32/64-bit only); | ||||||
1613 | // 'I' means __restrict (32/64-bit). | ||||||
1614 | // Note that the MSVC __restrict keyword isn't the same as the C99 restrict | ||||||
1615 | // keyword! | ||||||
1616 | // <base-cvr-qualifiers> ::= A # near | ||||||
1617 | // ::= B # near const | ||||||
1618 | // ::= C # near volatile | ||||||
1619 | // ::= D # near const volatile | ||||||
1620 | // ::= E # far (16-bit) | ||||||
1621 | // ::= F # far const (16-bit) | ||||||
1622 | // ::= G # far volatile (16-bit) | ||||||
1623 | // ::= H # far const volatile (16-bit) | ||||||
1624 | // ::= I # huge (16-bit) | ||||||
1625 | // ::= J # huge const (16-bit) | ||||||
1626 | // ::= K # huge volatile (16-bit) | ||||||
1627 | // ::= L # huge const volatile (16-bit) | ||||||
1628 | // ::= M <basis> # based | ||||||
1629 | // ::= N <basis> # based const | ||||||
1630 | // ::= O <basis> # based volatile | ||||||
1631 | // ::= P <basis> # based const volatile | ||||||
1632 | // ::= Q # near member | ||||||
1633 | // ::= R # near const member | ||||||
1634 | // ::= S # near volatile member | ||||||
1635 | // ::= T # near const volatile member | ||||||
1636 | // ::= U # far member (16-bit) | ||||||
1637 | // ::= V # far const member (16-bit) | ||||||
1638 | // ::= W # far volatile member (16-bit) | ||||||
1639 | // ::= X # far const volatile member (16-bit) | ||||||
1640 | // ::= Y # huge member (16-bit) | ||||||
1641 | // ::= Z # huge const member (16-bit) | ||||||
1642 | // ::= 0 # huge volatile member (16-bit) | ||||||
1643 | // ::= 1 # huge const volatile member (16-bit) | ||||||
1644 | // ::= 2 <basis> # based member | ||||||
1645 | // ::= 3 <basis> # based const member | ||||||
1646 | // ::= 4 <basis> # based volatile member | ||||||
1647 | // ::= 5 <basis> # based const volatile member | ||||||
1648 | // ::= 6 # near function (pointers only) | ||||||
1649 | // ::= 7 # far function (pointers only) | ||||||
1650 | // ::= 8 # near method (pointers only) | ||||||
1651 | // ::= 9 # far method (pointers only) | ||||||
1652 | // ::= _A <basis> # based function (pointers only) | ||||||
1653 | // ::= _B <basis> # based function (far?) (pointers only) | ||||||
1654 | // ::= _C <basis> # based method (pointers only) | ||||||
1655 | // ::= _D <basis> # based method (far?) (pointers only) | ||||||
1656 | // ::= _E # block (Clang) | ||||||
1657 | // <basis> ::= 0 # __based(void) | ||||||
1658 | // ::= 1 # __based(segment)? | ||||||
1659 | // ::= 2 <name> # __based(name) | ||||||
1660 | // ::= 3 # ? | ||||||
1661 | // ::= 4 # ? | ||||||
1662 | // ::= 5 # not really based | ||||||
1663 | bool HasConst = Quals.hasConst(), | ||||||
1664 | HasVolatile = Quals.hasVolatile(); | ||||||
1665 | |||||||
1666 | if (!IsMember) { | ||||||
1667 | if (HasConst && HasVolatile) { | ||||||
1668 | Out << 'D'; | ||||||
1669 | } else if (HasVolatile) { | ||||||
1670 | Out << 'C'; | ||||||
1671 | } else if (HasConst) { | ||||||
1672 | Out << 'B'; | ||||||
1673 | } else { | ||||||
1674 | Out << 'A'; | ||||||
1675 | } | ||||||
1676 | } else { | ||||||
1677 | if (HasConst && HasVolatile) { | ||||||
1678 | Out << 'T'; | ||||||
1679 | } else if (HasVolatile) { | ||||||
1680 | Out << 'S'; | ||||||
1681 | } else if (HasConst) { | ||||||
1682 | Out << 'R'; | ||||||
1683 | } else { | ||||||
1684 | Out << 'Q'; | ||||||
1685 | } | ||||||
1686 | } | ||||||
1687 | |||||||
1688 | // FIXME: For now, just drop all extension qualifiers on the floor. | ||||||
1689 | } | ||||||
1690 | |||||||
1691 | void | ||||||
1692 | MicrosoftCXXNameMangler::mangleRefQualifier(RefQualifierKind RefQualifier) { | ||||||
1693 | // <ref-qualifier> ::= G # lvalue reference | ||||||
1694 | // ::= H # rvalue-reference | ||||||
1695 | switch (RefQualifier) { | ||||||
1696 | case RQ_None: | ||||||
1697 | break; | ||||||
1698 | |||||||
1699 | case RQ_LValue: | ||||||
1700 | Out << 'G'; | ||||||
1701 | break; | ||||||
1702 | |||||||
1703 | case RQ_RValue: | ||||||
1704 | Out << 'H'; | ||||||
1705 | break; | ||||||
1706 | } | ||||||
1707 | } | ||||||
1708 | |||||||
1709 | void MicrosoftCXXNameMangler::manglePointerExtQualifiers(Qualifiers Quals, | ||||||
1710 | QualType PointeeType) { | ||||||
1711 | if (PointersAre64Bit && | ||||||
1712 | (PointeeType.isNull() || !PointeeType->isFunctionType())) | ||||||
1713 | Out << 'E'; | ||||||
1714 | |||||||
1715 | if (Quals.hasRestrict()) | ||||||
1716 | Out << 'I'; | ||||||
1717 | |||||||
1718 | if (Quals.hasUnaligned() || | ||||||
1719 | (!PointeeType.isNull() && PointeeType.getLocalQualifiers().hasUnaligned())) | ||||||
1720 | Out << 'F'; | ||||||
1721 | } | ||||||
1722 | |||||||
1723 | void MicrosoftCXXNameMangler::manglePointerCVQualifiers(Qualifiers Quals) { | ||||||
1724 | // <pointer-cv-qualifiers> ::= P # no qualifiers | ||||||
1725 | // ::= Q # const | ||||||
1726 | // ::= R # volatile | ||||||
1727 | // ::= S # const volatile | ||||||
1728 | bool HasConst = Quals.hasConst(), | ||||||
1729 | HasVolatile = Quals.hasVolatile(); | ||||||
1730 | |||||||
1731 | if (HasConst && HasVolatile) { | ||||||
1732 | Out << 'S'; | ||||||
1733 | } else if (HasVolatile) { | ||||||
1734 | Out << 'R'; | ||||||
1735 | } else if (HasConst) { | ||||||
1736 | Out << 'Q'; | ||||||
1737 | } else { | ||||||
1738 | Out << 'P'; | ||||||
1739 | } | ||||||
1740 | } | ||||||
1741 | |||||||
1742 | void MicrosoftCXXNameMangler::mangleFunctionArgumentType(QualType T, | ||||||
1743 | SourceRange Range) { | ||||||
1744 | // MSVC will backreference two canonically equivalent types that have slightly | ||||||
1745 | // different manglings when mangled alone. | ||||||
1746 | |||||||
1747 | // Decayed types do not match up with non-decayed versions of the same type. | ||||||
1748 | // | ||||||
1749 | // e.g. | ||||||
1750 | // void (*x)(void) will not form a backreference with void x(void) | ||||||
1751 | void *TypePtr; | ||||||
1752 | if (const auto *DT = T->getAs<DecayedType>()) { | ||||||
1753 | QualType OriginalType = DT->getOriginalType(); | ||||||
1754 | // All decayed ArrayTypes should be treated identically; as-if they were | ||||||
1755 | // a decayed IncompleteArrayType. | ||||||
1756 | if (const auto *AT = getASTContext().getAsArrayType(OriginalType)) | ||||||
1757 | OriginalType = getASTContext().getIncompleteArrayType( | ||||||
1758 | AT->getElementType(), AT->getSizeModifier(), | ||||||
1759 | AT->getIndexTypeCVRQualifiers()); | ||||||
1760 | |||||||
1761 | TypePtr = OriginalType.getCanonicalType().getAsOpaquePtr(); | ||||||
1762 | // If the original parameter was textually written as an array, | ||||||
1763 | // instead treat the decayed parameter like it's const. | ||||||
1764 | // | ||||||
1765 | // e.g. | ||||||
1766 | // int [] -> int * const | ||||||
1767 | if (OriginalType->isArrayType()) | ||||||
1768 | T = T.withConst(); | ||||||
1769 | } else { | ||||||
1770 | TypePtr = T.getCanonicalType().getAsOpaquePtr(); | ||||||
1771 | } | ||||||
1772 | |||||||
1773 | ArgBackRefMap::iterator Found = FunArgBackReferences.find(TypePtr); | ||||||
1774 | |||||||
1775 | if (Found == FunArgBackReferences.end()) { | ||||||
1776 | size_t OutSizeBefore = Out.tell(); | ||||||
1777 | |||||||
1778 | mangleType(T, Range, QMM_Drop); | ||||||
1779 | |||||||
1780 | // See if it's worth creating a back reference. | ||||||
1781 | // Only types longer than 1 character are considered | ||||||
1782 | // and only 10 back references slots are available: | ||||||
1783 | bool LongerThanOneChar = (Out.tell() - OutSizeBefore > 1); | ||||||
1784 | if (LongerThanOneChar && FunArgBackReferences.size() < 10) { | ||||||
1785 | size_t Size = FunArgBackReferences.size(); | ||||||
1786 | FunArgBackReferences[TypePtr] = Size; | ||||||
1787 | } | ||||||
1788 | } else { | ||||||
1789 | Out << Found->second; | ||||||
1790 | } | ||||||
1791 | } | ||||||
1792 | |||||||
1793 | void MicrosoftCXXNameMangler::manglePassObjectSizeArg( | ||||||
1794 | const PassObjectSizeAttr *POSA) { | ||||||
1795 | int Type = POSA->getType(); | ||||||
1796 | bool Dynamic = POSA->isDynamic(); | ||||||
1797 | |||||||
1798 | auto Iter = PassObjectSizeArgs.insert({Type, Dynamic}).first; | ||||||
1799 | auto *TypePtr = (const void *)&*Iter; | ||||||
1800 | ArgBackRefMap::iterator Found = FunArgBackReferences.find(TypePtr); | ||||||
1801 | |||||||
1802 | if (Found == FunArgBackReferences.end()) { | ||||||
1803 | std::string Name = | ||||||
1804 | Dynamic ? "__pass_dynamic_object_size" : "__pass_object_size"; | ||||||
1805 | mangleArtificialTagType(TTK_Enum, Name + llvm::utostr(Type), {"__clang"}); | ||||||
1806 | |||||||
1807 | if (FunArgBackReferences.size() < 10) { | ||||||
1808 | size_t Size = FunArgBackReferences.size(); | ||||||
1809 | FunArgBackReferences[TypePtr] = Size; | ||||||
1810 | } | ||||||
1811 | } else { | ||||||
1812 | Out << Found->second; | ||||||
1813 | } | ||||||
1814 | } | ||||||
1815 | |||||||
1816 | void MicrosoftCXXNameMangler::mangleAddressSpaceType(QualType T, | ||||||
1817 | Qualifiers Quals, | ||||||
1818 | SourceRange Range) { | ||||||
1819 | // Address space is mangled as an unqualified templated type in the __clang | ||||||
1820 | // namespace. The demangled version of this is: | ||||||
1821 | // In the case of a language specific address space: | ||||||
1822 | // __clang::struct _AS[language_addr_space]<Type> | ||||||
1823 | // where: | ||||||
1824 | // <language_addr_space> ::= <OpenCL-addrspace> | <CUDA-addrspace> | ||||||
1825 | // <OpenCL-addrspace> ::= "CL" [ "global" | "local" | "constant" | | ||||||
1826 | // "private"| "generic" ] | ||||||
1827 | // <CUDA-addrspace> ::= "CU" [ "device" | "constant" | "shared" ] | ||||||
1828 | // Note that the above were chosen to match the Itanium mangling for this. | ||||||
1829 | // | ||||||
1830 | // In the case of a non-language specific address space: | ||||||
1831 | // __clang::struct _AS<TargetAS, Type> | ||||||
1832 | assert(Quals.hasAddressSpace() && "Not valid without address space")((Quals.hasAddressSpace() && "Not valid without address space" ) ? static_cast<void> (0) : __assert_fail ("Quals.hasAddressSpace() && \"Not valid without address space\"" , "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 1832, __PRETTY_FUNCTION__)); | ||||||
1833 | llvm::SmallString<32> ASMangling; | ||||||
1834 | llvm::raw_svector_ostream Stream(ASMangling); | ||||||
1835 | MicrosoftCXXNameMangler Extra(Context, Stream); | ||||||
1836 | Stream << "?$"; | ||||||
1837 | |||||||
1838 | LangAS AS = Quals.getAddressSpace(); | ||||||
1839 | if (Context.getASTContext().addressSpaceMapManglingFor(AS)) { | ||||||
1840 | unsigned TargetAS = Context.getASTContext().getTargetAddressSpace(AS); | ||||||
1841 | Extra.mangleSourceName("_AS"); | ||||||
1842 | Extra.mangleIntegerLiteral(llvm::APSInt::getUnsigned(TargetAS), | ||||||
1843 | /*IsBoolean*/ false); | ||||||
1844 | } else { | ||||||
1845 | switch (AS) { | ||||||
1846 | default: | ||||||
1847 | llvm_unreachable("Not a language specific address space")::llvm::llvm_unreachable_internal("Not a language specific address space" , "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 1847); | ||||||
1848 | case LangAS::opencl_global: | ||||||
1849 | Extra.mangleSourceName("_ASCLglobal"); | ||||||
1850 | break; | ||||||
1851 | case LangAS::opencl_local: | ||||||
1852 | Extra.mangleSourceName("_ASCLlocal"); | ||||||
1853 | break; | ||||||
1854 | case LangAS::opencl_constant: | ||||||
1855 | Extra.mangleSourceName("_ASCLconstant"); | ||||||
1856 | break; | ||||||
1857 | case LangAS::opencl_private: | ||||||
1858 | Extra.mangleSourceName("_ASCLprivate"); | ||||||
1859 | break; | ||||||
1860 | case LangAS::opencl_generic: | ||||||
1861 | Extra.mangleSourceName("_ASCLgeneric"); | ||||||
1862 | break; | ||||||
1863 | case LangAS::cuda_device: | ||||||
1864 | Extra.mangleSourceName("_ASCUdevice"); | ||||||
1865 | break; | ||||||
1866 | case LangAS::cuda_constant: | ||||||
1867 | Extra.mangleSourceName("_ASCUconstant"); | ||||||
1868 | break; | ||||||
1869 | case LangAS::cuda_shared: | ||||||
1870 | Extra.mangleSourceName("_ASCUshared"); | ||||||
1871 | break; | ||||||
1872 | } | ||||||
1873 | } | ||||||
1874 | |||||||
1875 | Extra.mangleType(T, Range, QMM_Escape); | ||||||
1876 | mangleQualifiers(Qualifiers(), false); | ||||||
1877 | mangleArtificialTagType(TTK_Struct, ASMangling, {"__clang"}); | ||||||
1878 | } | ||||||
1879 | |||||||
1880 | void MicrosoftCXXNameMangler::mangleType(QualType T, SourceRange Range, | ||||||
1881 | QualifierMangleMode QMM) { | ||||||
1882 | // Don't use the canonical types. MSVC includes things like 'const' on | ||||||
1883 | // pointer arguments to function pointers that canonicalization strips away. | ||||||
1884 | T = T.getDesugaredType(getASTContext()); | ||||||
1885 | Qualifiers Quals = T.getLocalQualifiers(); | ||||||
1886 | |||||||
1887 | if (const ArrayType *AT = getASTContext().getAsArrayType(T)) { | ||||||
1888 | // If there were any Quals, getAsArrayType() pushed them onto the array | ||||||
1889 | // element type. | ||||||
1890 | if (QMM == QMM_Mangle) | ||||||
1891 | Out << 'A'; | ||||||
1892 | else if (QMM == QMM_Escape || QMM == QMM_Result) | ||||||
1893 | Out << "$$B"; | ||||||
1894 | mangleArrayType(AT); | ||||||
1895 | return; | ||||||
1896 | } | ||||||
1897 | |||||||
1898 | bool IsPointer = T->isAnyPointerType() || T->isMemberPointerType() || | ||||||
1899 | T->isReferenceType() || T->isBlockPointerType(); | ||||||
1900 | |||||||
1901 | switch (QMM) { | ||||||
1902 | case QMM_Drop: | ||||||
1903 | if (Quals.hasObjCLifetime()) | ||||||
1904 | Quals = Quals.withoutObjCLifetime(); | ||||||
1905 | break; | ||||||
1906 | case QMM_Mangle: | ||||||
1907 | if (const FunctionType *FT = dyn_cast<FunctionType>(T)) { | ||||||
1908 | Out << '6'; | ||||||
1909 | mangleFunctionType(FT); | ||||||
1910 | return; | ||||||
1911 | } | ||||||
1912 | mangleQualifiers(Quals, false); | ||||||
1913 | break; | ||||||
1914 | case QMM_Escape: | ||||||
1915 | if (!IsPointer && Quals) { | ||||||
1916 | Out << "$$C"; | ||||||
1917 | mangleQualifiers(Quals, false); | ||||||
1918 | } | ||||||
1919 | break; | ||||||
1920 | case QMM_Result: | ||||||
1921 | // Presence of __unaligned qualifier shouldn't affect mangling here. | ||||||
1922 | Quals.removeUnaligned(); | ||||||
1923 | if (Quals.hasObjCLifetime()) | ||||||
1924 | Quals = Quals.withoutObjCLifetime(); | ||||||
1925 | if ((!IsPointer && Quals) || isa<TagType>(T) || isArtificialTagType(T)) { | ||||||
1926 | Out << '?'; | ||||||
1927 | mangleQualifiers(Quals, false); | ||||||
1928 | } | ||||||
1929 | break; | ||||||
1930 | } | ||||||
1931 | |||||||
1932 | const Type *ty = T.getTypePtr(); | ||||||
1933 | |||||||
1934 | switch (ty->getTypeClass()) { | ||||||
1935 | #define ABSTRACT_TYPE(CLASS, PARENT) | ||||||
1936 | #define NON_CANONICAL_TYPE(CLASS, PARENT) \ | ||||||
1937 | case Type::CLASS: \ | ||||||
1938 | llvm_unreachable("can't mangle non-canonical type " #CLASS "Type")::llvm::llvm_unreachable_internal("can't mangle non-canonical type " #CLASS "Type", "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 1938); \ | ||||||
1939 | return; | ||||||
1940 | #define TYPE(CLASS, PARENT) \ | ||||||
1941 | case Type::CLASS: \ | ||||||
1942 | mangleType(cast<CLASS##Type>(ty), Quals, Range); \ | ||||||
1943 | break; | ||||||
1944 | #include "clang/AST/TypeNodes.inc" | ||||||
1945 | #undef ABSTRACT_TYPE | ||||||
1946 | #undef NON_CANONICAL_TYPE | ||||||
1947 | #undef TYPE | ||||||
1948 | } | ||||||
1949 | } | ||||||
1950 | |||||||
1951 | void MicrosoftCXXNameMangler::mangleType(const BuiltinType *T, Qualifiers, | ||||||
1952 | SourceRange Range) { | ||||||
1953 | // <type> ::= <builtin-type> | ||||||
1954 | // <builtin-type> ::= X # void | ||||||
1955 | // ::= C # signed char | ||||||
1956 | // ::= D # char | ||||||
1957 | // ::= E # unsigned char | ||||||
1958 | // ::= F # short | ||||||
1959 | // ::= G # unsigned short (or wchar_t if it's not a builtin) | ||||||
1960 | // ::= H # int | ||||||
1961 | // ::= I # unsigned int | ||||||
1962 | // ::= J # long | ||||||
1963 | // ::= K # unsigned long | ||||||
1964 | // L # <none> | ||||||
1965 | // ::= M # float | ||||||
1966 | // ::= N # double | ||||||
1967 | // ::= O # long double (__float80 is mangled differently) | ||||||
1968 | // ::= _J # long long, __int64 | ||||||
1969 | // ::= _K # unsigned long long, __int64 | ||||||
1970 | // ::= _L # __int128 | ||||||
1971 | // ::= _M # unsigned __int128 | ||||||
1972 | // ::= _N # bool | ||||||
1973 | // _O # <array in parameter> | ||||||
1974 | // ::= _Q # char8_t | ||||||
1975 | // ::= _S # char16_t | ||||||
1976 | // ::= _T # __float80 (Intel) | ||||||
1977 | // ::= _U # char32_t | ||||||
1978 | // ::= _W # wchar_t | ||||||
1979 | // ::= _Z # __float80 (Digital Mars) | ||||||
1980 | switch (T->getKind()) { | ||||||
1981 | case BuiltinType::Void: | ||||||
1982 | Out << 'X'; | ||||||
1983 | break; | ||||||
1984 | case BuiltinType::SChar: | ||||||
1985 | Out << 'C'; | ||||||
1986 | break; | ||||||
1987 | case BuiltinType::Char_U: | ||||||
1988 | case BuiltinType::Char_S: | ||||||
1989 | Out << 'D'; | ||||||
1990 | break; | ||||||
1991 | case BuiltinType::UChar: | ||||||
1992 | Out << 'E'; | ||||||
1993 | break; | ||||||
1994 | case BuiltinType::Short: | ||||||
1995 | Out << 'F'; | ||||||
1996 | break; | ||||||
1997 | case BuiltinType::UShort: | ||||||
1998 | Out << 'G'; | ||||||
1999 | break; | ||||||
2000 | case BuiltinType::Int: | ||||||
2001 | Out << 'H'; | ||||||
2002 | break; | ||||||
2003 | case BuiltinType::UInt: | ||||||
2004 | Out << 'I'; | ||||||
2005 | break; | ||||||
2006 | case BuiltinType::Long: | ||||||
2007 | Out << 'J'; | ||||||
2008 | break; | ||||||
2009 | case BuiltinType::ULong: | ||||||
2010 | Out << 'K'; | ||||||
2011 | break; | ||||||
2012 | case BuiltinType::Float: | ||||||
2013 | Out << 'M'; | ||||||
2014 | break; | ||||||
2015 | case BuiltinType::Double: | ||||||
2016 | Out << 'N'; | ||||||
2017 | break; | ||||||
2018 | // TODO: Determine size and mangle accordingly | ||||||
2019 | case BuiltinType::LongDouble: | ||||||
2020 | Out << 'O'; | ||||||
2021 | break; | ||||||
2022 | case BuiltinType::LongLong: | ||||||
2023 | Out << "_J"; | ||||||
2024 | break; | ||||||
2025 | case BuiltinType::ULongLong: | ||||||
2026 | Out << "_K"; | ||||||
2027 | break; | ||||||
2028 | case BuiltinType::Int128: | ||||||
2029 | Out << "_L"; | ||||||
2030 | break; | ||||||
2031 | case BuiltinType::UInt128: | ||||||
2032 | Out << "_M"; | ||||||
2033 | break; | ||||||
2034 | case BuiltinType::Bool: | ||||||
2035 | Out << "_N"; | ||||||
2036 | break; | ||||||
2037 | case BuiltinType::Char8: | ||||||
2038 | Out << "_Q"; | ||||||
2039 | break; | ||||||
2040 | case BuiltinType::Char16: | ||||||
2041 | Out << "_S"; | ||||||
2042 | break; | ||||||
2043 | case BuiltinType::Char32: | ||||||
2044 | Out << "_U"; | ||||||
2045 | break; | ||||||
2046 | case BuiltinType::WChar_S: | ||||||
2047 | case BuiltinType::WChar_U: | ||||||
2048 | Out << "_W"; | ||||||
2049 | break; | ||||||
2050 | |||||||
2051 | #define BUILTIN_TYPE(Id, SingletonId) | ||||||
2052 | #define PLACEHOLDER_TYPE(Id, SingletonId) \ | ||||||
2053 | case BuiltinType::Id: | ||||||
2054 | #include "clang/AST/BuiltinTypes.def" | ||||||
2055 | case BuiltinType::Dependent: | ||||||
2056 | llvm_unreachable("placeholder types shouldn't get to name mangling")::llvm::llvm_unreachable_internal("placeholder types shouldn't get to name mangling" , "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 2056); | ||||||
2057 | |||||||
2058 | case BuiltinType::ObjCId: | ||||||
2059 | mangleArtificialTagType(TTK_Struct, "objc_object"); | ||||||
2060 | break; | ||||||
2061 | case BuiltinType::ObjCClass: | ||||||
2062 | mangleArtificialTagType(TTK_Struct, "objc_class"); | ||||||
2063 | break; | ||||||
2064 | case BuiltinType::ObjCSel: | ||||||
2065 | mangleArtificialTagType(TTK_Struct, "objc_selector"); | ||||||
2066 | break; | ||||||
2067 | |||||||
2068 | #define IMAGE_TYPE(ImgType, Id, SingletonId, Access, Suffix) \ | ||||||
2069 | case BuiltinType::Id: \ | ||||||
2070 | Out << "PAUocl_" #ImgType "_" #Suffix "@@"; \ | ||||||
2071 | break; | ||||||
2072 | #include "clang/Basic/OpenCLImageTypes.def" | ||||||
2073 | case BuiltinType::OCLSampler: | ||||||
2074 | Out << "PA"; | ||||||
2075 | mangleArtificialTagType(TTK_Struct, "ocl_sampler"); | ||||||
2076 | break; | ||||||
2077 | case BuiltinType::OCLEvent: | ||||||
2078 | Out << "PA"; | ||||||
2079 | mangleArtificialTagType(TTK_Struct, "ocl_event"); | ||||||
2080 | break; | ||||||
2081 | case BuiltinType::OCLClkEvent: | ||||||
2082 | Out << "PA"; | ||||||
2083 | mangleArtificialTagType(TTK_Struct, "ocl_clkevent"); | ||||||
2084 | break; | ||||||
2085 | case BuiltinType::OCLQueue: | ||||||
2086 | Out << "PA"; | ||||||
2087 | mangleArtificialTagType(TTK_Struct, "ocl_queue"); | ||||||
2088 | break; | ||||||
2089 | case BuiltinType::OCLReserveID: | ||||||
2090 | Out << "PA"; | ||||||
2091 | mangleArtificialTagType(TTK_Struct, "ocl_reserveid"); | ||||||
2092 | break; | ||||||
2093 | #define EXT_OPAQUE_TYPE(ExtType, Id, Ext) \ | ||||||
2094 | case BuiltinType::Id: \ | ||||||
2095 | mangleArtificialTagType(TTK_Struct, "ocl_" #ExtType); \ | ||||||
2096 | break; | ||||||
2097 | #include "clang/Basic/OpenCLExtensionTypes.def" | ||||||
2098 | |||||||
2099 | case BuiltinType::NullPtr: | ||||||
2100 | Out << "$$T"; | ||||||
2101 | break; | ||||||
2102 | |||||||
2103 | case BuiltinType::Float16: | ||||||
2104 | mangleArtificialTagType(TTK_Struct, "_Float16", {"__clang"}); | ||||||
2105 | break; | ||||||
2106 | |||||||
2107 | case BuiltinType::Half: | ||||||
2108 | mangleArtificialTagType(TTK_Struct, "_Half", {"__clang"}); | ||||||
2109 | break; | ||||||
2110 | |||||||
2111 | #define SVE_TYPE(Name, Id, SingletonId) \ | ||||||
2112 | case BuiltinType::Id: | ||||||
2113 | #include "clang/Basic/AArch64SVEACLETypes.def" | ||||||
2114 | case BuiltinType::ShortAccum: | ||||||
2115 | case BuiltinType::Accum: | ||||||
2116 | case BuiltinType::LongAccum: | ||||||
2117 | case BuiltinType::UShortAccum: | ||||||
2118 | case BuiltinType::UAccum: | ||||||
2119 | case BuiltinType::ULongAccum: | ||||||
2120 | case BuiltinType::ShortFract: | ||||||
2121 | case BuiltinType::Fract: | ||||||
2122 | case BuiltinType::LongFract: | ||||||
2123 | case BuiltinType::UShortFract: | ||||||
2124 | case BuiltinType::UFract: | ||||||
2125 | case BuiltinType::ULongFract: | ||||||
2126 | case BuiltinType::SatShortAccum: | ||||||
2127 | case BuiltinType::SatAccum: | ||||||
2128 | case BuiltinType::SatLongAccum: | ||||||
2129 | case BuiltinType::SatUShortAccum: | ||||||
2130 | case BuiltinType::SatUAccum: | ||||||
2131 | case BuiltinType::SatULongAccum: | ||||||
2132 | case BuiltinType::SatShortFract: | ||||||
2133 | case BuiltinType::SatFract: | ||||||
2134 | case BuiltinType::SatLongFract: | ||||||
2135 | case BuiltinType::SatUShortFract: | ||||||
2136 | case BuiltinType::SatUFract: | ||||||
2137 | case BuiltinType::SatULongFract: | ||||||
2138 | case BuiltinType::Float128: { | ||||||
2139 | DiagnosticsEngine &Diags = Context.getDiags(); | ||||||
2140 | unsigned DiagID = Diags.getCustomDiagID( | ||||||
2141 | DiagnosticsEngine::Error, "cannot mangle this built-in %0 type yet"); | ||||||
2142 | Diags.Report(Range.getBegin(), DiagID) | ||||||
2143 | << T->getName(Context.getASTContext().getPrintingPolicy()) << Range; | ||||||
2144 | break; | ||||||
2145 | } | ||||||
2146 | } | ||||||
2147 | } | ||||||
2148 | |||||||
2149 | // <type> ::= <function-type> | ||||||
2150 | void MicrosoftCXXNameMangler::mangleType(const FunctionProtoType *T, Qualifiers, | ||||||
2151 | SourceRange) { | ||||||
2152 | // Structors only appear in decls, so at this point we know it's not a | ||||||
2153 | // structor type. | ||||||
2154 | // FIXME: This may not be lambda-friendly. | ||||||
2155 | if (T->getMethodQuals() || T->getRefQualifier() != RQ_None) { | ||||||
2156 | Out << "$$A8@@"; | ||||||
2157 | mangleFunctionType(T, /*D=*/nullptr, /*ForceThisQuals=*/true); | ||||||
2158 | } else { | ||||||
2159 | Out << "$$A6"; | ||||||
2160 | mangleFunctionType(T); | ||||||
2161 | } | ||||||
2162 | } | ||||||
2163 | void MicrosoftCXXNameMangler::mangleType(const FunctionNoProtoType *T, | ||||||
2164 | Qualifiers, SourceRange) { | ||||||
2165 | Out << "$$A6"; | ||||||
2166 | mangleFunctionType(T); | ||||||
2167 | } | ||||||
2168 | |||||||
2169 | void MicrosoftCXXNameMangler::mangleFunctionType(const FunctionType *T, | ||||||
2170 | const FunctionDecl *D, | ||||||
2171 | bool ForceThisQuals, | ||||||
2172 | bool MangleExceptionSpec) { | ||||||
2173 | // <function-type> ::= <this-cvr-qualifiers> <calling-convention> | ||||||
2174 | // <return-type> <argument-list> <throw-spec> | ||||||
2175 | const FunctionProtoType *Proto = dyn_cast<FunctionProtoType>(T); | ||||||
2176 | |||||||
2177 | SourceRange Range; | ||||||
2178 | if (D
| ||||||
2179 | |||||||
2180 | bool IsInLambda = false; | ||||||
2181 | bool IsStructor = false, HasThisQuals = ForceThisQuals, IsCtorClosure = false; | ||||||
2182 | CallingConv CC = T->getCallConv(); | ||||||
2183 | if (const CXXMethodDecl *MD
| ||||||
2184 | if (MD->getParent()->isLambda()) | ||||||
2185 | IsInLambda = true; | ||||||
2186 | if (MD->isInstance()) | ||||||
2187 | HasThisQuals = true; | ||||||
2188 | if (isa<CXXDestructorDecl>(MD)) { | ||||||
2189 | IsStructor = true; | ||||||
2190 | } else if (isa<CXXConstructorDecl>(MD)) { | ||||||
2191 | IsStructor = true; | ||||||
2192 | IsCtorClosure = (StructorType == Ctor_CopyingClosure || | ||||||
2193 | StructorType == Ctor_DefaultClosure) && | ||||||
2194 | isStructorDecl(MD); | ||||||
2195 | if (IsCtorClosure) | ||||||
2196 | CC = getASTContext().getDefaultCallingConvention( | ||||||
2197 | /*IsVariadic=*/false, /*IsCXXMethod=*/true); | ||||||
2198 | } | ||||||
2199 | } | ||||||
2200 | |||||||
2201 | // If this is a C++ instance method, mangle the CVR qualifiers for the | ||||||
2202 | // this pointer. | ||||||
2203 | if (HasThisQuals
| ||||||
2204 | Qualifiers Quals = Proto->getMethodQuals(); | ||||||
2205 | manglePointerExtQualifiers(Quals, /*PointeeType=*/QualType()); | ||||||
2206 | mangleRefQualifier(Proto->getRefQualifier()); | ||||||
2207 | mangleQualifiers(Quals, /*IsMember=*/false); | ||||||
2208 | } | ||||||
2209 | |||||||
2210 | mangleCallingConvention(CC); | ||||||
2211 | |||||||
2212 | // <return-type> ::= <type> | ||||||
2213 | // ::= @ # structors (they have no declared return type) | ||||||
2214 | if (IsStructor
| ||||||
2215 | if (isa<CXXDestructorDecl>(D) && isStructorDecl(D)) { | ||||||
2216 | // The scalar deleting destructor takes an extra int argument which is not | ||||||
2217 | // reflected in the AST. | ||||||
2218 | if (StructorType == Dtor_Deleting) { | ||||||
2219 | Out << (PointersAre64Bit ? "PEAXI@Z" : "PAXI@Z"); | ||||||
2220 | return; | ||||||
2221 | } | ||||||
2222 | // The vbase destructor returns void which is not reflected in the AST. | ||||||
2223 | if (StructorType == Dtor_Complete) { | ||||||
2224 | Out << "XXZ"; | ||||||
2225 | return; | ||||||
2226 | } | ||||||
2227 | } | ||||||
2228 | if (IsCtorClosure) { | ||||||
2229 | // Default constructor closure and copy constructor closure both return | ||||||
2230 | // void. | ||||||
2231 | Out << 'X'; | ||||||
2232 | |||||||
2233 | if (StructorType == Ctor_DefaultClosure) { | ||||||
2234 | // Default constructor closure always has no arguments. | ||||||
2235 | Out << 'X'; | ||||||
2236 | } else if (StructorType == Ctor_CopyingClosure) { | ||||||
2237 | // Copy constructor closure always takes an unqualified reference. | ||||||
2238 | mangleFunctionArgumentType(getASTContext().getLValueReferenceType( | ||||||
2239 | Proto->getParamType(0) | ||||||
2240 | ->getAs<LValueReferenceType>() | ||||||
2241 | ->getPointeeType(), | ||||||
2242 | /*SpelledAsLValue=*/true), | ||||||
2243 | Range); | ||||||
2244 | Out << '@'; | ||||||
2245 | } else { | ||||||
2246 | llvm_unreachable("unexpected constructor closure!")::llvm::llvm_unreachable_internal("unexpected constructor closure!" , "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 2246); | ||||||
2247 | } | ||||||
2248 | Out << 'Z'; | ||||||
2249 | return; | ||||||
2250 | } | ||||||
2251 | Out << '@'; | ||||||
2252 | } else { | ||||||
2253 | QualType ResultType = T->getReturnType(); | ||||||
2254 | if (const auto *AT
| ||||||
2255 | dyn_cast_or_null<AutoType>(ResultType->getContainedAutoType())) { | ||||||
2256 | Out << '?'; | ||||||
2257 | mangleQualifiers(ResultType.getLocalQualifiers(), /*IsMember=*/false); | ||||||
2258 | Out << '?'; | ||||||
2259 | assert(AT->getKeyword() != AutoTypeKeyword::GNUAutoType &&((AT->getKeyword() != AutoTypeKeyword::GNUAutoType && "shouldn't need to mangle __auto_type!") ? static_cast<void > (0) : __assert_fail ("AT->getKeyword() != AutoTypeKeyword::GNUAutoType && \"shouldn't need to mangle __auto_type!\"" , "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 2260, __PRETTY_FUNCTION__)) | ||||||
2260 | "shouldn't need to mangle __auto_type!")((AT->getKeyword() != AutoTypeKeyword::GNUAutoType && "shouldn't need to mangle __auto_type!") ? static_cast<void > (0) : __assert_fail ("AT->getKeyword() != AutoTypeKeyword::GNUAutoType && \"shouldn't need to mangle __auto_type!\"" , "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 2260, __PRETTY_FUNCTION__)); | ||||||
2261 | mangleSourceName(AT->isDecltypeAuto() ? "<decltype-auto>" : "<auto>"); | ||||||
2262 | Out << '@'; | ||||||
2263 | } else if (IsInLambda
| ||||||
2264 | Out << '@'; | ||||||
2265 | } else { | ||||||
2266 | if (ResultType->isVoidType()) | ||||||
2267 | ResultType = ResultType.getUnqualifiedType(); | ||||||
2268 | mangleType(ResultType, Range, QMM_Result); | ||||||
2269 | } | ||||||
2270 | } | ||||||
2271 | |||||||
2272 | // <argument-list> ::= X # void | ||||||
2273 | // ::= <type>+ @ | ||||||
2274 | // ::= <type>* Z # varargs | ||||||
2275 | if (!Proto
| ||||||
2276 | // Function types without prototypes can arise when mangling a function type | ||||||
2277 | // within an overloadable function in C. We mangle these as the absence of | ||||||
2278 | // any parameter types (not even an empty parameter list). | ||||||
2279 | Out << '@'; | ||||||
2280 | } else if (Proto->getNumParams() == 0 && !Proto->isVariadic()) { | ||||||
2281 | Out << 'X'; | ||||||
2282 | } else { | ||||||
2283 | // Happens for function pointer type arguments for example. | ||||||
2284 | for (unsigned I = 0, E = Proto->getNumParams(); I != E; ++I) { | ||||||
2285 | mangleFunctionArgumentType(Proto->getParamType(I), Range); | ||||||
2286 | // Mangle each pass_object_size parameter as if it's a parameter of enum | ||||||
2287 | // type passed directly after the parameter with the pass_object_size | ||||||
2288 | // attribute. The aforementioned enum's name is __pass_object_size, and we | ||||||
2289 | // pretend it resides in a top-level namespace called __clang. | ||||||
2290 | // | ||||||
2291 | // FIXME: Is there a defined extension notation for the MS ABI, or is it | ||||||
2292 | // necessary to just cross our fingers and hope this type+namespace | ||||||
2293 | // combination doesn't conflict with anything? | ||||||
2294 | if (D) | ||||||
2295 | if (const auto *P = D->getParamDecl(I)->getAttr<PassObjectSizeAttr>()) | ||||||
2296 | manglePassObjectSizeArg(P); | ||||||
2297 | } | ||||||
2298 | // <builtin-type> ::= Z # ellipsis | ||||||
2299 | if (Proto->isVariadic()) | ||||||
2300 | Out << 'Z'; | ||||||
2301 | else | ||||||
2302 | Out << '@'; | ||||||
2303 | } | ||||||
2304 | |||||||
2305 | if (MangleExceptionSpec
| ||||||
2306 | getASTContext().getLangOpts().isCompatibleWithMSVC( | ||||||
2307 | LangOptions::MSVC2017_5)) | ||||||
2308 | mangleThrowSpecification(Proto); | ||||||
2309 | else | ||||||
2310 | Out << 'Z'; | ||||||
2311 | } | ||||||
2312 | |||||||
2313 | void MicrosoftCXXNameMangler::mangleFunctionClass(const FunctionDecl *FD) { | ||||||
2314 | // <function-class> ::= <member-function> E? # E designates a 64-bit 'this' | ||||||
2315 | // # pointer. in 64-bit mode *all* | ||||||
2316 | // # 'this' pointers are 64-bit. | ||||||
2317 | // ::= <global-function> | ||||||
2318 | // <member-function> ::= A # private: near | ||||||
2319 | // ::= B # private: far | ||||||
2320 | // ::= C # private: static near | ||||||
2321 | // ::= D # private: static far | ||||||
2322 | // ::= E # private: virtual near | ||||||
2323 | // ::= F # private: virtual far | ||||||
2324 | // ::= I # protected: near | ||||||
2325 | // ::= J # protected: far | ||||||
2326 | // ::= K # protected: static near | ||||||
2327 | // ::= L # protected: static far | ||||||
2328 | // ::= M # protected: virtual near | ||||||
2329 | // ::= N # protected: virtual far | ||||||
2330 | // ::= Q # public: near | ||||||
2331 | // ::= R # public: far | ||||||
2332 | // ::= S # public: static near | ||||||
2333 | // ::= T # public: static far | ||||||
2334 | // ::= U # public: virtual near | ||||||
2335 | // ::= V # public: virtual far | ||||||
2336 | // <global-function> ::= Y # global near | ||||||
2337 | // ::= Z # global far | ||||||
2338 | if (const CXXMethodDecl *MD = dyn_cast<CXXMethodDecl>(FD)) { | ||||||
2339 | bool IsVirtual = MD->isVirtual(); | ||||||
2340 | // When mangling vbase destructor variants, ignore whether or not the | ||||||
2341 | // underlying destructor was defined to be virtual. | ||||||
2342 | if (isa<CXXDestructorDecl>(MD) && isStructorDecl(MD) && | ||||||
2343 | StructorType == Dtor_Complete) { | ||||||
2344 | IsVirtual = false; | ||||||
2345 | } | ||||||
2346 | switch (MD->getAccess()) { | ||||||
2347 | case AS_none: | ||||||
2348 | llvm_unreachable("Unsupported access specifier")::llvm::llvm_unreachable_internal("Unsupported access specifier" , "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 2348); | ||||||
2349 | case AS_private: | ||||||
2350 | if (MD->isStatic()) | ||||||
2351 | Out << 'C'; | ||||||
2352 | else if (IsVirtual) | ||||||
2353 | Out << 'E'; | ||||||
2354 | else | ||||||
2355 | Out << 'A'; | ||||||
2356 | break; | ||||||
2357 | case AS_protected: | ||||||
2358 | if (MD->isStatic()) | ||||||
2359 | Out << 'K'; | ||||||
2360 | else if (IsVirtual) | ||||||
2361 | Out << 'M'; | ||||||
2362 | else | ||||||
2363 | Out << 'I'; | ||||||
2364 | break; | ||||||
2365 | case AS_public: | ||||||
2366 | if (MD->isStatic()) | ||||||
2367 | Out << 'S'; | ||||||
2368 | else if (IsVirtual) | ||||||
2369 | Out << 'U'; | ||||||
2370 | else | ||||||
2371 | Out << 'Q'; | ||||||
2372 | } | ||||||
2373 | } else { | ||||||
2374 | Out << 'Y'; | ||||||
2375 | } | ||||||
2376 | } | ||||||
2377 | void MicrosoftCXXNameMangler::mangleCallingConvention(CallingConv CC) { | ||||||
2378 | // <calling-convention> ::= A # __cdecl | ||||||
2379 | // ::= B # __export __cdecl | ||||||
2380 | // ::= C # __pascal | ||||||
2381 | // ::= D # __export __pascal | ||||||
2382 | // ::= E # __thiscall | ||||||
2383 | // ::= F # __export __thiscall | ||||||
2384 | // ::= G # __stdcall | ||||||
2385 | // ::= H # __export __stdcall | ||||||
2386 | // ::= I # __fastcall | ||||||
2387 | // ::= J # __export __fastcall | ||||||
2388 | // ::= Q # __vectorcall | ||||||
2389 | // ::= w # __regcall | ||||||
2390 | // The 'export' calling conventions are from a bygone era | ||||||
2391 | // (*cough*Win16*cough*) when functions were declared for export with | ||||||
2392 | // that keyword. (It didn't actually export them, it just made them so | ||||||
2393 | // that they could be in a DLL and somebody from another module could call | ||||||
2394 | // them.) | ||||||
2395 | |||||||
2396 | switch (CC) { | ||||||
2397 | default: | ||||||
2398 | llvm_unreachable("Unsupported CC for mangling")::llvm::llvm_unreachable_internal("Unsupported CC for mangling" , "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 2398); | ||||||
2399 | case CC_Win64: | ||||||
2400 | case CC_X86_64SysV: | ||||||
2401 | case CC_C: Out << 'A'; break; | ||||||
2402 | case CC_X86Pascal: Out << 'C'; break; | ||||||
2403 | case CC_X86ThisCall: Out << 'E'; break; | ||||||
2404 | case CC_X86StdCall: Out << 'G'; break; | ||||||
2405 | case CC_X86FastCall: Out << 'I'; break; | ||||||
2406 | case CC_X86VectorCall: Out << 'Q'; break; | ||||||
2407 | case CC_Swift: Out << 'S'; break; | ||||||
2408 | case CC_PreserveMost: Out << 'U'; break; | ||||||
2409 | case CC_X86RegCall: Out << 'w'; break; | ||||||
2410 | } | ||||||
2411 | } | ||||||
2412 | void MicrosoftCXXNameMangler::mangleCallingConvention(const FunctionType *T) { | ||||||
2413 | mangleCallingConvention(T->getCallConv()); | ||||||
2414 | } | ||||||
2415 | |||||||
2416 | void MicrosoftCXXNameMangler::mangleThrowSpecification( | ||||||
2417 | const FunctionProtoType *FT) { | ||||||
2418 | // <throw-spec> ::= Z # (default) | ||||||
2419 | // ::= _E # noexcept | ||||||
2420 | if (FT->canThrow()) | ||||||
| |||||||
2421 | Out << 'Z'; | ||||||
2422 | else | ||||||
2423 | Out << "_E"; | ||||||
2424 | } | ||||||
2425 | |||||||
2426 | void MicrosoftCXXNameMangler::mangleType(const UnresolvedUsingType *T, | ||||||
2427 | Qualifiers, SourceRange Range) { | ||||||
2428 | // Probably should be mangled as a template instantiation; need to see what | ||||||
2429 | // VC does first. | ||||||
2430 | DiagnosticsEngine &Diags = Context.getDiags(); | ||||||
2431 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, | ||||||
2432 | "cannot mangle this unresolved dependent type yet"); | ||||||
2433 | Diags.Report(Range.getBegin(), DiagID) | ||||||
2434 | << Range; | ||||||
2435 | } | ||||||
2436 | |||||||
2437 | // <type> ::= <union-type> | <struct-type> | <class-type> | <enum-type> | ||||||
2438 | // <union-type> ::= T <name> | ||||||
2439 | // <struct-type> ::= U <name> | ||||||
2440 | // <class-type> ::= V <name> | ||||||
2441 | // <enum-type> ::= W4 <name> | ||||||
2442 | void MicrosoftCXXNameMangler::mangleTagTypeKind(TagTypeKind TTK) { | ||||||
2443 | switch (TTK) { | ||||||
2444 | case TTK_Union: | ||||||
2445 | Out << 'T'; | ||||||
2446 | break; | ||||||
2447 | case TTK_Struct: | ||||||
2448 | case TTK_Interface: | ||||||
2449 | Out << 'U'; | ||||||
2450 | break; | ||||||
2451 | case TTK_Class: | ||||||
2452 | Out << 'V'; | ||||||
2453 | break; | ||||||
2454 | case TTK_Enum: | ||||||
2455 | Out << "W4"; | ||||||
2456 | break; | ||||||
2457 | } | ||||||
2458 | } | ||||||
2459 | void MicrosoftCXXNameMangler::mangleType(const EnumType *T, Qualifiers, | ||||||
2460 | SourceRange) { | ||||||
2461 | mangleType(cast<TagType>(T)->getDecl()); | ||||||
2462 | } | ||||||
2463 | void MicrosoftCXXNameMangler::mangleType(const RecordType *T, Qualifiers, | ||||||
2464 | SourceRange) { | ||||||
2465 | mangleType(cast<TagType>(T)->getDecl()); | ||||||
2466 | } | ||||||
2467 | void MicrosoftCXXNameMangler::mangleType(const TagDecl *TD) { | ||||||
2468 | mangleTagTypeKind(TD->getTagKind()); | ||||||
2469 | mangleName(TD); | ||||||
2470 | } | ||||||
2471 | |||||||
2472 | // If you add a call to this, consider updating isArtificialTagType() too. | ||||||
2473 | void MicrosoftCXXNameMangler::mangleArtificialTagType( | ||||||
2474 | TagTypeKind TK, StringRef UnqualifiedName, | ||||||
2475 | ArrayRef<StringRef> NestedNames) { | ||||||
2476 | // <name> ::= <unscoped-name> {[<named-scope>]+ | [<nested-name>]}? @ | ||||||
2477 | mangleTagTypeKind(TK); | ||||||
2478 | |||||||
2479 | // Always start with the unqualified name. | ||||||
2480 | mangleSourceName(UnqualifiedName); | ||||||
2481 | |||||||
2482 | for (auto I = NestedNames.rbegin(), E = NestedNames.rend(); I != E; ++I) | ||||||
2483 | mangleSourceName(*I); | ||||||
2484 | |||||||
2485 | // Terminate the whole name with an '@'. | ||||||
2486 | Out << '@'; | ||||||
2487 | } | ||||||
2488 | |||||||
2489 | // <type> ::= <array-type> | ||||||
2490 | // <array-type> ::= <pointer-cvr-qualifiers> <cvr-qualifiers> | ||||||
2491 | // [Y <dimension-count> <dimension>+] | ||||||
2492 | // <element-type> # as global, E is never required | ||||||
2493 | // It's supposed to be the other way around, but for some strange reason, it | ||||||
2494 | // isn't. Today this behavior is retained for the sole purpose of backwards | ||||||
2495 | // compatibility. | ||||||
2496 | void MicrosoftCXXNameMangler::mangleDecayedArrayType(const ArrayType *T) { | ||||||
2497 | // This isn't a recursive mangling, so now we have to do it all in this | ||||||
2498 | // one call. | ||||||
2499 | manglePointerCVQualifiers(T->getElementType().getQualifiers()); | ||||||
2500 | mangleType(T->getElementType(), SourceRange()); | ||||||
2501 | } | ||||||
2502 | void MicrosoftCXXNameMangler::mangleType(const ConstantArrayType *T, Qualifiers, | ||||||
2503 | SourceRange) { | ||||||
2504 | llvm_unreachable("Should have been special cased")::llvm::llvm_unreachable_internal("Should have been special cased" , "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 2504); | ||||||
2505 | } | ||||||
2506 | void MicrosoftCXXNameMangler::mangleType(const VariableArrayType *T, Qualifiers, | ||||||
2507 | SourceRange) { | ||||||
2508 | llvm_unreachable("Should have been special cased")::llvm::llvm_unreachable_internal("Should have been special cased" , "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 2508); | ||||||
2509 | } | ||||||
2510 | void MicrosoftCXXNameMangler::mangleType(const DependentSizedArrayType *T, | ||||||
2511 | Qualifiers, SourceRange) { | ||||||
2512 | llvm_unreachable("Should have been special cased")::llvm::llvm_unreachable_internal("Should have been special cased" , "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 2512); | ||||||
2513 | } | ||||||
2514 | void MicrosoftCXXNameMangler::mangleType(const IncompleteArrayType *T, | ||||||
2515 | Qualifiers, SourceRange) { | ||||||
2516 | llvm_unreachable("Should have been special cased")::llvm::llvm_unreachable_internal("Should have been special cased" , "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 2516); | ||||||
2517 | } | ||||||
2518 | void MicrosoftCXXNameMangler::mangleArrayType(const ArrayType *T) { | ||||||
2519 | QualType ElementTy(T, 0); | ||||||
2520 | SmallVector<llvm::APInt, 3> Dimensions; | ||||||
2521 | for (;;) { | ||||||
2522 | if (ElementTy->isConstantArrayType()) { | ||||||
2523 | const ConstantArrayType *CAT = | ||||||
2524 | getASTContext().getAsConstantArrayType(ElementTy); | ||||||
2525 | Dimensions.push_back(CAT->getSize()); | ||||||
2526 | ElementTy = CAT->getElementType(); | ||||||
2527 | } else if (ElementTy->isIncompleteArrayType()) { | ||||||
2528 | const IncompleteArrayType *IAT = | ||||||
2529 | getASTContext().getAsIncompleteArrayType(ElementTy); | ||||||
2530 | Dimensions.push_back(llvm::APInt(32, 0)); | ||||||
2531 | ElementTy = IAT->getElementType(); | ||||||
2532 | } else if (ElementTy->isVariableArrayType()) { | ||||||
2533 | const VariableArrayType *VAT = | ||||||
2534 | getASTContext().getAsVariableArrayType(ElementTy); | ||||||
2535 | Dimensions.push_back(llvm::APInt(32, 0)); | ||||||
2536 | ElementTy = VAT->getElementType(); | ||||||
2537 | } else if (ElementTy->isDependentSizedArrayType()) { | ||||||
2538 | // The dependent expression has to be folded into a constant (TODO). | ||||||
2539 | const DependentSizedArrayType *DSAT = | ||||||
2540 | getASTContext().getAsDependentSizedArrayType(ElementTy); | ||||||
2541 | DiagnosticsEngine &Diags = Context.getDiags(); | ||||||
2542 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, | ||||||
2543 | "cannot mangle this dependent-length array yet"); | ||||||
2544 | Diags.Report(DSAT->getSizeExpr()->getExprLoc(), DiagID) | ||||||
2545 | << DSAT->getBracketsRange(); | ||||||
2546 | return; | ||||||
2547 | } else { | ||||||
2548 | break; | ||||||
2549 | } | ||||||
2550 | } | ||||||
2551 | Out << 'Y'; | ||||||
2552 | // <dimension-count> ::= <number> # number of extra dimensions | ||||||
2553 | mangleNumber(Dimensions.size()); | ||||||
2554 | for (const llvm::APInt &Dimension : Dimensions) | ||||||
2555 | mangleNumber(Dimension.getLimitedValue()); | ||||||
2556 | mangleType(ElementTy, SourceRange(), QMM_Escape); | ||||||
2557 | } | ||||||
2558 | |||||||
2559 | // <type> ::= <pointer-to-member-type> | ||||||
2560 | // <pointer-to-member-type> ::= <pointer-cvr-qualifiers> <cvr-qualifiers> | ||||||
2561 | // <class name> <type> | ||||||
2562 | void MicrosoftCXXNameMangler::mangleType(const MemberPointerType *T, | ||||||
2563 | Qualifiers Quals, SourceRange Range) { | ||||||
2564 | QualType PointeeType = T->getPointeeType(); | ||||||
2565 | manglePointerCVQualifiers(Quals); | ||||||
2566 | manglePointerExtQualifiers(Quals, PointeeType); | ||||||
2567 | if (const FunctionProtoType *FPT = PointeeType->getAs<FunctionProtoType>()) { | ||||||
2568 | Out << '8'; | ||||||
2569 | mangleName(T->getClass()->castAs<RecordType>()->getDecl()); | ||||||
2570 | mangleFunctionType(FPT, nullptr, true); | ||||||
2571 | } else { | ||||||
2572 | mangleQualifiers(PointeeType.getQualifiers(), true); | ||||||
2573 | mangleName(T->getClass()->castAs<RecordType>()->getDecl()); | ||||||
2574 | mangleType(PointeeType, Range, QMM_Drop); | ||||||
2575 | } | ||||||
2576 | } | ||||||
2577 | |||||||
2578 | void MicrosoftCXXNameMangler::mangleType(const TemplateTypeParmType *T, | ||||||
2579 | Qualifiers, SourceRange Range) { | ||||||
2580 | DiagnosticsEngine &Diags = Context.getDiags(); | ||||||
2581 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, | ||||||
2582 | "cannot mangle this template type parameter type yet"); | ||||||
2583 | Diags.Report(Range.getBegin(), DiagID) | ||||||
2584 | << Range; | ||||||
2585 | } | ||||||
2586 | |||||||
2587 | void MicrosoftCXXNameMangler::mangleType(const SubstTemplateTypeParmPackType *T, | ||||||
2588 | Qualifiers, SourceRange Range) { | ||||||
2589 | DiagnosticsEngine &Diags = Context.getDiags(); | ||||||
2590 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, | ||||||
2591 | "cannot mangle this substituted parameter pack yet"); | ||||||
2592 | Diags.Report(Range.getBegin(), DiagID) | ||||||
2593 | << Range; | ||||||
2594 | } | ||||||
2595 | |||||||
2596 | // <type> ::= <pointer-type> | ||||||
2597 | // <pointer-type> ::= E? <pointer-cvr-qualifiers> <cvr-qualifiers> <type> | ||||||
2598 | // # the E is required for 64-bit non-static pointers | ||||||
2599 | void MicrosoftCXXNameMangler::mangleType(const PointerType *T, Qualifiers Quals, | ||||||
2600 | SourceRange Range) { | ||||||
2601 | QualType PointeeType = T->getPointeeType(); | ||||||
2602 | manglePointerCVQualifiers(Quals); | ||||||
2603 | manglePointerExtQualifiers(Quals, PointeeType); | ||||||
2604 | |||||||
2605 | if (PointeeType.getQualifiers().hasAddressSpace()) | ||||||
2606 | mangleAddressSpaceType(PointeeType, PointeeType.getQualifiers(), Range); | ||||||
2607 | else | ||||||
2608 | mangleType(PointeeType, Range); | ||||||
2609 | } | ||||||
2610 | |||||||
2611 | void MicrosoftCXXNameMangler::mangleType(const ObjCObjectPointerType *T, | ||||||
2612 | Qualifiers Quals, SourceRange Range) { | ||||||
2613 | QualType PointeeType = T->getPointeeType(); | ||||||
2614 | switch (Quals.getObjCLifetime()) { | ||||||
2615 | case Qualifiers::OCL_None: | ||||||
2616 | case Qualifiers::OCL_ExplicitNone: | ||||||
2617 | break; | ||||||
2618 | case Qualifiers::OCL_Autoreleasing: | ||||||
2619 | case Qualifiers::OCL_Strong: | ||||||
2620 | case Qualifiers::OCL_Weak: | ||||||
2621 | return mangleObjCLifetime(PointeeType, Quals, Range); | ||||||
2622 | } | ||||||
2623 | manglePointerCVQualifiers(Quals); | ||||||
2624 | manglePointerExtQualifiers(Quals, PointeeType); | ||||||
2625 | mangleType(PointeeType, Range); | ||||||
2626 | } | ||||||
2627 | |||||||
2628 | // <type> ::= <reference-type> | ||||||
2629 | // <reference-type> ::= A E? <cvr-qualifiers> <type> | ||||||
2630 | // # the E is required for 64-bit non-static lvalue references | ||||||
2631 | void MicrosoftCXXNameMangler::mangleType(const LValueReferenceType *T, | ||||||
2632 | Qualifiers Quals, SourceRange Range) { | ||||||
2633 | QualType PointeeType = T->getPointeeType(); | ||||||
2634 | assert(!Quals.hasConst() && !Quals.hasVolatile() && "unexpected qualifier!")((!Quals.hasConst() && !Quals.hasVolatile() && "unexpected qualifier!") ? static_cast<void> (0) : __assert_fail ("!Quals.hasConst() && !Quals.hasVolatile() && \"unexpected qualifier!\"" , "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 2634, __PRETTY_FUNCTION__)); | ||||||
2635 | Out << 'A'; | ||||||
2636 | manglePointerExtQualifiers(Quals, PointeeType); | ||||||
2637 | mangleType(PointeeType, Range); | ||||||
2638 | } | ||||||
2639 | |||||||
2640 | // <type> ::= <r-value-reference-type> | ||||||
2641 | // <r-value-reference-type> ::= $$Q E? <cvr-qualifiers> <type> | ||||||
2642 | // # the E is required for 64-bit non-static rvalue references | ||||||
2643 | void MicrosoftCXXNameMangler::mangleType(const RValueReferenceType *T, | ||||||
2644 | Qualifiers Quals, SourceRange Range) { | ||||||
2645 | QualType PointeeType = T->getPointeeType(); | ||||||
2646 | assert(!Quals.hasConst() && !Quals.hasVolatile() && "unexpected qualifier!")((!Quals.hasConst() && !Quals.hasVolatile() && "unexpected qualifier!") ? static_cast<void> (0) : __assert_fail ("!Quals.hasConst() && !Quals.hasVolatile() && \"unexpected qualifier!\"" , "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 2646, __PRETTY_FUNCTION__)); | ||||||
2647 | Out << "$$Q"; | ||||||
2648 | manglePointerExtQualifiers(Quals, PointeeType); | ||||||
2649 | mangleType(PointeeType, Range); | ||||||
2650 | } | ||||||
2651 | |||||||
2652 | void MicrosoftCXXNameMangler::mangleType(const ComplexType *T, Qualifiers, | ||||||
2653 | SourceRange Range) { | ||||||
2654 | QualType ElementType = T->getElementType(); | ||||||
2655 | |||||||
2656 | llvm::SmallString<64> TemplateMangling; | ||||||
2657 | llvm::raw_svector_ostream Stream(TemplateMangling); | ||||||
2658 | MicrosoftCXXNameMangler Extra(Context, Stream); | ||||||
2659 | Stream << "?$"; | ||||||
2660 | Extra.mangleSourceName("_Complex"); | ||||||
2661 | Extra.mangleType(ElementType, Range, QMM_Escape); | ||||||
2662 | |||||||
2663 | mangleArtificialTagType(TTK_Struct, TemplateMangling, {"__clang"}); | ||||||
2664 | } | ||||||
2665 | |||||||
2666 | // Returns true for types that mangleArtificialTagType() gets called for with | ||||||
2667 | // TTK_Union, TTK_Struct, TTK_Class and where compatibility with MSVC's | ||||||
2668 | // mangling matters. | ||||||
2669 | // (It doesn't matter for Objective-C types and the like that cl.exe doesn't | ||||||
2670 | // support.) | ||||||
2671 | bool MicrosoftCXXNameMangler::isArtificialTagType(QualType T) const { | ||||||
2672 | const Type *ty = T.getTypePtr(); | ||||||
2673 | switch (ty->getTypeClass()) { | ||||||
2674 | default: | ||||||
2675 | return false; | ||||||
2676 | |||||||
2677 | case Type::Vector: { | ||||||
2678 | // For ABI compatibility only __m64, __m128(id), and __m256(id) matter, | ||||||
2679 | // but since mangleType(VectorType*) always calls mangleArtificialTagType() | ||||||
2680 | // just always return true (the other vector types are clang-only). | ||||||
2681 | return true; | ||||||
2682 | } | ||||||
2683 | } | ||||||
2684 | } | ||||||
2685 | |||||||
2686 | void MicrosoftCXXNameMangler::mangleType(const VectorType *T, Qualifiers Quals, | ||||||
2687 | SourceRange Range) { | ||||||
2688 | const BuiltinType *ET = T->getElementType()->getAs<BuiltinType>(); | ||||||
2689 | assert(ET && "vectors with non-builtin elements are unsupported")((ET && "vectors with non-builtin elements are unsupported" ) ? static_cast<void> (0) : __assert_fail ("ET && \"vectors with non-builtin elements are unsupported\"" , "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 2689, __PRETTY_FUNCTION__)); | ||||||
2690 | uint64_t Width = getASTContext().getTypeSize(T); | ||||||
2691 | // Pattern match exactly the typedefs in our intrinsic headers. Anything that | ||||||
2692 | // doesn't match the Intel types uses a custom mangling below. | ||||||
2693 | size_t OutSizeBefore = Out.tell(); | ||||||
2694 | if (!isa<ExtVectorType>(T)) { | ||||||
2695 | llvm::Triple::ArchType AT = | ||||||
2696 | getASTContext().getTargetInfo().getTriple().getArch(); | ||||||
2697 | if (AT == llvm::Triple::x86 || AT == llvm::Triple::x86_64) { | ||||||
2698 | if (Width == 64 && ET->getKind() == BuiltinType::LongLong) { | ||||||
2699 | mangleArtificialTagType(TTK_Union, "__m64"); | ||||||
2700 | } else if (Width >= 128) { | ||||||
2701 | if (ET->getKind() == BuiltinType::Float) | ||||||
2702 | mangleArtificialTagType(TTK_Union, "__m" + llvm::utostr(Width)); | ||||||
2703 | else if (ET->getKind() == BuiltinType::LongLong) | ||||||
2704 | mangleArtificialTagType(TTK_Union, "__m" + llvm::utostr(Width) + 'i'); | ||||||
2705 | else if (ET->getKind() == BuiltinType::Double) | ||||||
2706 | mangleArtificialTagType(TTK_Struct, "__m" + llvm::utostr(Width) + 'd'); | ||||||
2707 | } | ||||||
2708 | } | ||||||
2709 | } | ||||||
2710 | |||||||
2711 | bool IsBuiltin = Out.tell() != OutSizeBefore; | ||||||
2712 | if (!IsBuiltin) { | ||||||
2713 | // The MS ABI doesn't have a special mangling for vector types, so we define | ||||||
2714 | // our own mangling to handle uses of __vector_size__ on user-specified | ||||||
2715 | // types, and for extensions like __v4sf. | ||||||
2716 | |||||||
2717 | llvm::SmallString<64> TemplateMangling; | ||||||
2718 | llvm::raw_svector_ostream Stream(TemplateMangling); | ||||||
2719 | MicrosoftCXXNameMangler Extra(Context, Stream); | ||||||
2720 | Stream << "?$"; | ||||||
2721 | Extra.mangleSourceName("__vector"); | ||||||
2722 | Extra.mangleType(QualType(ET, 0), Range, QMM_Escape); | ||||||
2723 | Extra.mangleIntegerLiteral(llvm::APSInt::getUnsigned(T->getNumElements()), | ||||||
2724 | /*IsBoolean=*/false); | ||||||
2725 | |||||||
2726 | mangleArtificialTagType(TTK_Union, TemplateMangling, {"__clang"}); | ||||||
2727 | } | ||||||
2728 | } | ||||||
2729 | |||||||
2730 | void MicrosoftCXXNameMangler::mangleType(const ExtVectorType *T, | ||||||
2731 | Qualifiers Quals, SourceRange Range) { | ||||||
2732 | mangleType(static_cast<const VectorType *>(T), Quals, Range); | ||||||
2733 | } | ||||||
2734 | |||||||
2735 | void MicrosoftCXXNameMangler::mangleType(const DependentVectorType *T, | ||||||
2736 | Qualifiers, SourceRange Range) { | ||||||
2737 | DiagnosticsEngine &Diags = Context.getDiags(); | ||||||
2738 | unsigned DiagID = Diags.getCustomDiagID( | ||||||
2739 | DiagnosticsEngine::Error, | ||||||
2740 | "cannot mangle this dependent-sized vector type yet"); | ||||||
2741 | Diags.Report(Range.getBegin(), DiagID) << Range; | ||||||
2742 | } | ||||||
2743 | |||||||
2744 | void MicrosoftCXXNameMangler::mangleType(const DependentSizedExtVectorType *T, | ||||||
2745 | Qualifiers, SourceRange Range) { | ||||||
2746 | DiagnosticsEngine &Diags = Context.getDiags(); | ||||||
2747 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, | ||||||
2748 | "cannot mangle this dependent-sized extended vector type yet"); | ||||||
2749 | Diags.Report(Range.getBegin(), DiagID) | ||||||
2750 | << Range; | ||||||
2751 | } | ||||||
2752 | |||||||
2753 | void MicrosoftCXXNameMangler::mangleType(const DependentAddressSpaceType *T, | ||||||
2754 | Qualifiers, SourceRange Range) { | ||||||
2755 | DiagnosticsEngine &Diags = Context.getDiags(); | ||||||
2756 | unsigned DiagID = Diags.getCustomDiagID( | ||||||
2757 | DiagnosticsEngine::Error, | ||||||
2758 | "cannot mangle this dependent address space type yet"); | ||||||
2759 | Diags.Report(Range.getBegin(), DiagID) << Range; | ||||||
2760 | } | ||||||
2761 | |||||||
2762 | void MicrosoftCXXNameMangler::mangleType(const ObjCInterfaceType *T, Qualifiers, | ||||||
2763 | SourceRange) { | ||||||
2764 | // ObjC interfaces have structs underlying them. | ||||||
2765 | mangleTagTypeKind(TTK_Struct); | ||||||
2766 | mangleName(T->getDecl()); | ||||||
2767 | } | ||||||
2768 | |||||||
2769 | void MicrosoftCXXNameMangler::mangleType(const ObjCObjectType *T, | ||||||
2770 | Qualifiers Quals, SourceRange Range) { | ||||||
2771 | if (T->isKindOfType()) | ||||||
2772 | return mangleObjCKindOfType(T, Quals, Range); | ||||||
2773 | |||||||
2774 | if (T->qual_empty() && !T->isSpecialized()) | ||||||
2775 | return mangleType(T->getBaseType(), Range, QMM_Drop); | ||||||
2776 | |||||||
2777 | ArgBackRefMap OuterFunArgsContext; | ||||||
2778 | ArgBackRefMap OuterTemplateArgsContext; | ||||||
2779 | BackRefVec OuterTemplateContext; | ||||||
2780 | |||||||
2781 | FunArgBackReferences.swap(OuterFunArgsContext); | ||||||
2782 | TemplateArgBackReferences.swap(OuterTemplateArgsContext); | ||||||
2783 | NameBackReferences.swap(OuterTemplateContext); | ||||||
2784 | |||||||
2785 | mangleTagTypeKind(TTK_Struct); | ||||||
2786 | |||||||
2787 | Out << "?$"; | ||||||
2788 | if (T->isObjCId()) | ||||||
2789 | mangleSourceName("objc_object"); | ||||||
2790 | else if (T->isObjCClass()) | ||||||
2791 | mangleSourceName("objc_class"); | ||||||
2792 | else | ||||||
2793 | mangleSourceName(T->getInterface()->getName()); | ||||||
2794 | |||||||
2795 | for (const auto &Q : T->quals()) | ||||||
2796 | mangleObjCProtocol(Q); | ||||||
2797 | |||||||
2798 | if (T->isSpecialized()) | ||||||
2799 | for (const auto &TA : T->getTypeArgs()) | ||||||
2800 | mangleType(TA, Range, QMM_Drop); | ||||||
2801 | |||||||
2802 | Out << '@'; | ||||||
2803 | |||||||
2804 | Out << '@'; | ||||||
2805 | |||||||
2806 | FunArgBackReferences.swap(OuterFunArgsContext); | ||||||
2807 | TemplateArgBackReferences.swap(OuterTemplateArgsContext); | ||||||
2808 | NameBackReferences.swap(OuterTemplateContext); | ||||||
2809 | } | ||||||
2810 | |||||||
2811 | void MicrosoftCXXNameMangler::mangleType(const BlockPointerType *T, | ||||||
2812 | Qualifiers Quals, SourceRange Range) { | ||||||
2813 | QualType PointeeType = T->getPointeeType(); | ||||||
2814 | manglePointerCVQualifiers(Quals); | ||||||
2815 | manglePointerExtQualifiers(Quals, PointeeType); | ||||||
2816 | |||||||
2817 | Out << "_E"; | ||||||
2818 | |||||||
2819 | mangleFunctionType(PointeeType->castAs<FunctionProtoType>()); | ||||||
2820 | } | ||||||
2821 | |||||||
2822 | void MicrosoftCXXNameMangler::mangleType(const InjectedClassNameType *, | ||||||
2823 | Qualifiers, SourceRange) { | ||||||
2824 | llvm_unreachable("Cannot mangle injected class name type.")::llvm::llvm_unreachable_internal("Cannot mangle injected class name type." , "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 2824); | ||||||
2825 | } | ||||||
2826 | |||||||
2827 | void MicrosoftCXXNameMangler::mangleType(const TemplateSpecializationType *T, | ||||||
2828 | Qualifiers, SourceRange Range) { | ||||||
2829 | DiagnosticsEngine &Diags = Context.getDiags(); | ||||||
2830 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, | ||||||
2831 | "cannot mangle this template specialization type yet"); | ||||||
2832 | Diags.Report(Range.getBegin(), DiagID) | ||||||
2833 | << Range; | ||||||
2834 | } | ||||||
2835 | |||||||
2836 | void MicrosoftCXXNameMangler::mangleType(const DependentNameType *T, Qualifiers, | ||||||
2837 | SourceRange Range) { | ||||||
2838 | DiagnosticsEngine &Diags = Context.getDiags(); | ||||||
2839 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, | ||||||
2840 | "cannot mangle this dependent name type yet"); | ||||||
2841 | Diags.Report(Range.getBegin(), DiagID) | ||||||
2842 | << Range; | ||||||
2843 | } | ||||||
2844 | |||||||
2845 | void MicrosoftCXXNameMangler::mangleType( | ||||||
2846 | const DependentTemplateSpecializationType *T, Qualifiers, | ||||||
2847 | SourceRange Range) { | ||||||
2848 | DiagnosticsEngine &Diags = Context.getDiags(); | ||||||
2849 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, | ||||||
2850 | "cannot mangle this dependent template specialization type yet"); | ||||||
2851 | Diags.Report(Range.getBegin(), DiagID) | ||||||
2852 | << Range; | ||||||
2853 | } | ||||||
2854 | |||||||
2855 | void MicrosoftCXXNameMangler::mangleType(const PackExpansionType *T, Qualifiers, | ||||||
2856 | SourceRange Range) { | ||||||
2857 | DiagnosticsEngine &Diags = Context.getDiags(); | ||||||
2858 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, | ||||||
2859 | "cannot mangle this pack expansion yet"); | ||||||
2860 | Diags.Report(Range.getBegin(), DiagID) | ||||||
2861 | << Range; | ||||||
2862 | } | ||||||
2863 | |||||||
2864 | void MicrosoftCXXNameMangler::mangleType(const TypeOfType *T, Qualifiers, | ||||||
2865 | SourceRange Range) { | ||||||
2866 | DiagnosticsEngine &Diags = Context.getDiags(); | ||||||
2867 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, | ||||||
2868 | "cannot mangle this typeof(type) yet"); | ||||||
2869 | Diags.Report(Range.getBegin(), DiagID) | ||||||
2870 | << Range; | ||||||
2871 | } | ||||||
2872 | |||||||
2873 | void MicrosoftCXXNameMangler::mangleType(const TypeOfExprType *T, Qualifiers, | ||||||
2874 | SourceRange Range) { | ||||||
2875 | DiagnosticsEngine &Diags = Context.getDiags(); | ||||||
2876 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, | ||||||
2877 | "cannot mangle this typeof(expression) yet"); | ||||||
2878 | Diags.Report(Range.getBegin(), DiagID) | ||||||
2879 | << Range; | ||||||
2880 | } | ||||||
2881 | |||||||
2882 | void MicrosoftCXXNameMangler::mangleType(const DecltypeType *T, Qualifiers, | ||||||
2883 | SourceRange Range) { | ||||||
2884 | DiagnosticsEngine &Diags = Context.getDiags(); | ||||||
2885 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, | ||||||
2886 | "cannot mangle this decltype() yet"); | ||||||
2887 | Diags.Report(Range.getBegin(), DiagID) | ||||||
2888 | << Range; | ||||||
2889 | } | ||||||
2890 | |||||||
2891 | void MicrosoftCXXNameMangler::mangleType(const UnaryTransformType *T, | ||||||
2892 | Qualifiers, SourceRange Range) { | ||||||
2893 | DiagnosticsEngine &Diags = Context.getDiags(); | ||||||
2894 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, | ||||||
2895 | "cannot mangle this unary transform type yet"); | ||||||
2896 | Diags.Report(Range.getBegin(), DiagID) | ||||||
2897 | << Range; | ||||||
2898 | } | ||||||
2899 | |||||||
2900 | void MicrosoftCXXNameMangler::mangleType(const AutoType *T, Qualifiers, | ||||||
2901 | SourceRange Range) { | ||||||
2902 | assert(T->getDeducedType().isNull() && "expecting a dependent type!")((T->getDeducedType().isNull() && "expecting a dependent type!" ) ? static_cast<void> (0) : __assert_fail ("T->getDeducedType().isNull() && \"expecting a dependent type!\"" , "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 2902, __PRETTY_FUNCTION__)); | ||||||
2903 | |||||||
2904 | DiagnosticsEngine &Diags = Context.getDiags(); | ||||||
2905 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, | ||||||
2906 | "cannot mangle this 'auto' type yet"); | ||||||
2907 | Diags.Report(Range.getBegin(), DiagID) | ||||||
2908 | << Range; | ||||||
2909 | } | ||||||
2910 | |||||||
2911 | void MicrosoftCXXNameMangler::mangleType( | ||||||
2912 | const DeducedTemplateSpecializationType *T, Qualifiers, SourceRange Range) { | ||||||
2913 | assert(T->getDeducedType().isNull() && "expecting a dependent type!")((T->getDeducedType().isNull() && "expecting a dependent type!" ) ? static_cast<void> (0) : __assert_fail ("T->getDeducedType().isNull() && \"expecting a dependent type!\"" , "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 2913, __PRETTY_FUNCTION__)); | ||||||
2914 | |||||||
2915 | DiagnosticsEngine &Diags = Context.getDiags(); | ||||||
2916 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, | ||||||
2917 | "cannot mangle this deduced class template specialization type yet"); | ||||||
2918 | Diags.Report(Range.getBegin(), DiagID) | ||||||
2919 | << Range; | ||||||
2920 | } | ||||||
2921 | |||||||
2922 | void MicrosoftCXXNameMangler::mangleType(const AtomicType *T, Qualifiers, | ||||||
2923 | SourceRange Range) { | ||||||
2924 | QualType ValueType = T->getValueType(); | ||||||
2925 | |||||||
2926 | llvm::SmallString<64> TemplateMangling; | ||||||
2927 | llvm::raw_svector_ostream Stream(TemplateMangling); | ||||||
2928 | MicrosoftCXXNameMangler Extra(Context, Stream); | ||||||
2929 | Stream << "?$"; | ||||||
2930 | Extra.mangleSourceName("_Atomic"); | ||||||
2931 | Extra.mangleType(ValueType, Range, QMM_Escape); | ||||||
2932 | |||||||
2933 | mangleArtificialTagType(TTK_Struct, TemplateMangling, {"__clang"}); | ||||||
2934 | } | ||||||
2935 | |||||||
2936 | void MicrosoftCXXNameMangler::mangleType(const PipeType *T, Qualifiers, | ||||||
2937 | SourceRange Range) { | ||||||
2938 | DiagnosticsEngine &Diags = Context.getDiags(); | ||||||
2939 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, | ||||||
2940 | "cannot mangle this OpenCL pipe type yet"); | ||||||
2941 | Diags.Report(Range.getBegin(), DiagID) | ||||||
2942 | << Range; | ||||||
2943 | } | ||||||
2944 | |||||||
2945 | void MicrosoftMangleContextImpl::mangleCXXName(const NamedDecl *D, | ||||||
2946 | raw_ostream &Out) { | ||||||
2947 | assert((isa<FunctionDecl>(D) || isa<VarDecl>(D)) &&(((isa<FunctionDecl>(D) || isa<VarDecl>(D)) && "Invalid mangleName() call, argument is not a variable or function!" ) ? static_cast<void> (0) : __assert_fail ("(isa<FunctionDecl>(D) || isa<VarDecl>(D)) && \"Invalid mangleName() call, argument is not a variable or function!\"" , "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 2948, __PRETTY_FUNCTION__)) | ||||||
2948 | "Invalid mangleName() call, argument is not a variable or function!")(((isa<FunctionDecl>(D) || isa<VarDecl>(D)) && "Invalid mangleName() call, argument is not a variable or function!" ) ? static_cast<void> (0) : __assert_fail ("(isa<FunctionDecl>(D) || isa<VarDecl>(D)) && \"Invalid mangleName() call, argument is not a variable or function!\"" , "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 2948, __PRETTY_FUNCTION__)); | ||||||
2949 | assert(!isa<CXXConstructorDecl>(D) && !isa<CXXDestructorDecl>(D) &&((!isa<CXXConstructorDecl>(D) && !isa<CXXDestructorDecl >(D) && "Invalid mangleName() call on 'structor decl!" ) ? static_cast<void> (0) : __assert_fail ("!isa<CXXConstructorDecl>(D) && !isa<CXXDestructorDecl>(D) && \"Invalid mangleName() call on 'structor decl!\"" , "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 2950, __PRETTY_FUNCTION__)) | ||||||
2950 | "Invalid mangleName() call on 'structor decl!")((!isa<CXXConstructorDecl>(D) && !isa<CXXDestructorDecl >(D) && "Invalid mangleName() call on 'structor decl!" ) ? static_cast<void> (0) : __assert_fail ("!isa<CXXConstructorDecl>(D) && !isa<CXXDestructorDecl>(D) && \"Invalid mangleName() call on 'structor decl!\"" , "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 2950, __PRETTY_FUNCTION__)); | ||||||
2951 | |||||||
2952 | PrettyStackTraceDecl CrashInfo(D, SourceLocation(), | ||||||
2953 | getASTContext().getSourceManager(), | ||||||
2954 | "Mangling declaration"); | ||||||
2955 | |||||||
2956 | msvc_hashing_ostream MHO(Out); | ||||||
2957 | MicrosoftCXXNameMangler Mangler(*this, MHO); | ||||||
2958 | return Mangler.mangle(D); | ||||||
2959 | } | ||||||
2960 | |||||||
2961 | // <this-adjustment> ::= <no-adjustment> | <static-adjustment> | | ||||||
2962 | // <virtual-adjustment> | ||||||
2963 | // <no-adjustment> ::= A # private near | ||||||
2964 | // ::= B # private far | ||||||
2965 | // ::= I # protected near | ||||||
2966 | // ::= J # protected far | ||||||
2967 | // ::= Q # public near | ||||||
2968 | // ::= R # public far | ||||||
2969 | // <static-adjustment> ::= G <static-offset> # private near | ||||||
2970 | // ::= H <static-offset> # private far | ||||||
2971 | // ::= O <static-offset> # protected near | ||||||
2972 | // ::= P <static-offset> # protected far | ||||||
2973 | // ::= W <static-offset> # public near | ||||||
2974 | // ::= X <static-offset> # public far | ||||||
2975 | // <virtual-adjustment> ::= $0 <virtual-shift> <static-offset> # private near | ||||||
2976 | // ::= $1 <virtual-shift> <static-offset> # private far | ||||||
2977 | // ::= $2 <virtual-shift> <static-offset> # protected near | ||||||
2978 | // ::= $3 <virtual-shift> <static-offset> # protected far | ||||||
2979 | // ::= $4 <virtual-shift> <static-offset> # public near | ||||||
2980 | // ::= $5 <virtual-shift> <static-offset> # public far | ||||||
2981 | // <virtual-shift> ::= <vtordisp-shift> | <vtordispex-shift> | ||||||
2982 | // <vtordisp-shift> ::= <offset-to-vtordisp> | ||||||
2983 | // <vtordispex-shift> ::= <offset-to-vbptr> <vbase-offset-offset> | ||||||
2984 | // <offset-to-vtordisp> | ||||||
2985 | static void mangleThunkThisAdjustment(AccessSpecifier AS, | ||||||
2986 | const ThisAdjustment &Adjustment, | ||||||
2987 | MicrosoftCXXNameMangler &Mangler, | ||||||
2988 | raw_ostream &Out) { | ||||||
2989 | if (!Adjustment.Virtual.isEmpty()) { | ||||||
2990 | Out << '$'; | ||||||
2991 | char AccessSpec; | ||||||
2992 | switch (AS) { | ||||||
2993 | case AS_none: | ||||||
2994 | llvm_unreachable("Unsupported access specifier")::llvm::llvm_unreachable_internal("Unsupported access specifier" , "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 2994); | ||||||
2995 | case AS_private: | ||||||
2996 | AccessSpec = '0'; | ||||||
2997 | break; | ||||||
2998 | case AS_protected: | ||||||
2999 | AccessSpec = '2'; | ||||||
3000 | break; | ||||||
3001 | case AS_public: | ||||||
3002 | AccessSpec = '4'; | ||||||
3003 | } | ||||||
3004 | if (Adjustment.Virtual.Microsoft.VBPtrOffset) { | ||||||
3005 | Out << 'R' << AccessSpec; | ||||||
3006 | Mangler.mangleNumber( | ||||||
3007 | static_cast<uint32_t>(Adjustment.Virtual.Microsoft.VBPtrOffset)); | ||||||
3008 | Mangler.mangleNumber( | ||||||
3009 | static_cast<uint32_t>(Adjustment.Virtual.Microsoft.VBOffsetOffset)); | ||||||
3010 | Mangler.mangleNumber( | ||||||
3011 | static_cast<uint32_t>(Adjustment.Virtual.Microsoft.VtordispOffset)); | ||||||
3012 | Mangler.mangleNumber(static_cast<uint32_t>(Adjustment.NonVirtual)); | ||||||
3013 | } else { | ||||||
3014 | Out << AccessSpec; | ||||||
3015 | Mangler.mangleNumber( | ||||||
3016 | static_cast<uint32_t>(Adjustment.Virtual.Microsoft.VtordispOffset)); | ||||||
3017 | Mangler.mangleNumber(-static_cast<uint32_t>(Adjustment.NonVirtual)); | ||||||
3018 | } | ||||||
3019 | } else if (Adjustment.NonVirtual != 0) { | ||||||
3020 | switch (AS) { | ||||||
3021 | case AS_none: | ||||||
3022 | llvm_unreachable("Unsupported access specifier")::llvm::llvm_unreachable_internal("Unsupported access specifier" , "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 3022); | ||||||
3023 | case AS_private: | ||||||
3024 | Out << 'G'; | ||||||
3025 | break; | ||||||
3026 | case AS_protected: | ||||||
3027 | Out << 'O'; | ||||||
3028 | break; | ||||||
3029 | case AS_public: | ||||||
3030 | Out << 'W'; | ||||||
3031 | } | ||||||
3032 | Mangler.mangleNumber(-static_cast<uint32_t>(Adjustment.NonVirtual)); | ||||||
3033 | } else { | ||||||
3034 | switch (AS) { | ||||||
3035 | case AS_none: | ||||||
3036 | llvm_unreachable("Unsupported access specifier")::llvm::llvm_unreachable_internal("Unsupported access specifier" , "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 3036); | ||||||
3037 | case AS_private: | ||||||
3038 | Out << 'A'; | ||||||
3039 | break; | ||||||
3040 | case AS_protected: | ||||||
3041 | Out << 'I'; | ||||||
3042 | break; | ||||||
3043 | case AS_public: | ||||||
3044 | Out << 'Q'; | ||||||
3045 | } | ||||||
3046 | } | ||||||
3047 | } | ||||||
3048 | |||||||
3049 | void MicrosoftMangleContextImpl::mangleVirtualMemPtrThunk( | ||||||
3050 | const CXXMethodDecl *MD, const MethodVFTableLocation &ML, | ||||||
3051 | raw_ostream &Out) { | ||||||
3052 | msvc_hashing_ostream MHO(Out); | ||||||
3053 | MicrosoftCXXNameMangler Mangler(*this, MHO); | ||||||
3054 | Mangler.getStream() << '?'; | ||||||
3055 | Mangler.mangleVirtualMemPtrThunk(MD, ML); | ||||||
3056 | } | ||||||
3057 | |||||||
3058 | void MicrosoftMangleContextImpl::mangleThunk(const CXXMethodDecl *MD, | ||||||
3059 | const ThunkInfo &Thunk, | ||||||
3060 | raw_ostream &Out) { | ||||||
3061 | msvc_hashing_ostream MHO(Out); | ||||||
3062 | MicrosoftCXXNameMangler Mangler(*this, MHO); | ||||||
3063 | Mangler.getStream() << '?'; | ||||||
3064 | Mangler.mangleName(MD); | ||||||
3065 | |||||||
3066 | // Usually the thunk uses the access specifier of the new method, but if this | ||||||
3067 | // is a covariant return thunk, then MSVC always uses the public access | ||||||
3068 | // specifier, and we do the same. | ||||||
3069 | AccessSpecifier AS = Thunk.Return.isEmpty() ? MD->getAccess() : AS_public; | ||||||
3070 | mangleThunkThisAdjustment(AS, Thunk.This, Mangler, MHO); | ||||||
3071 | |||||||
3072 | if (!Thunk.Return.isEmpty()) | ||||||
3073 | assert(Thunk.Method != nullptr &&((Thunk.Method != nullptr && "Thunk info should hold the overridee decl" ) ? static_cast<void> (0) : __assert_fail ("Thunk.Method != nullptr && \"Thunk info should hold the overridee decl\"" , "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 3074, __PRETTY_FUNCTION__)) | ||||||
3074 | "Thunk info should hold the overridee decl")((Thunk.Method != nullptr && "Thunk info should hold the overridee decl" ) ? static_cast<void> (0) : __assert_fail ("Thunk.Method != nullptr && \"Thunk info should hold the overridee decl\"" , "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 3074, __PRETTY_FUNCTION__)); | ||||||
3075 | |||||||
3076 | const CXXMethodDecl *DeclForFPT = Thunk.Method ? Thunk.Method : MD; | ||||||
3077 | Mangler.mangleFunctionType( | ||||||
3078 | DeclForFPT->getType()->castAs<FunctionProtoType>(), MD); | ||||||
3079 | } | ||||||
3080 | |||||||
3081 | void MicrosoftMangleContextImpl::mangleCXXDtorThunk( | ||||||
3082 | const CXXDestructorDecl *DD, CXXDtorType Type, | ||||||
3083 | const ThisAdjustment &Adjustment, raw_ostream &Out) { | ||||||
3084 | // FIXME: Actually, the dtor thunk should be emitted for vector deleting | ||||||
3085 | // dtors rather than scalar deleting dtors. Just use the vector deleting dtor | ||||||
3086 | // mangling manually until we support both deleting dtor types. | ||||||
3087 | assert(Type == Dtor_Deleting)((Type == Dtor_Deleting) ? static_cast<void> (0) : __assert_fail ("Type == Dtor_Deleting", "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 3087, __PRETTY_FUNCTION__)); | ||||||
3088 | msvc_hashing_ostream MHO(Out); | ||||||
3089 | MicrosoftCXXNameMangler Mangler(*this, MHO, DD, Type); | ||||||
3090 | Mangler.getStream() << "??_E"; | ||||||
3091 | Mangler.mangleName(DD->getParent()); | ||||||
3092 | mangleThunkThisAdjustment(DD->getAccess(), Adjustment, Mangler, MHO); | ||||||
3093 | Mangler.mangleFunctionType(DD->getType()->castAs<FunctionProtoType>(), DD); | ||||||
3094 | } | ||||||
3095 | |||||||
3096 | void MicrosoftMangleContextImpl::mangleCXXVFTable( | ||||||
3097 | const CXXRecordDecl *Derived, ArrayRef<const CXXRecordDecl *> BasePath, | ||||||
3098 | raw_ostream &Out) { | ||||||
3099 | // <mangled-name> ::= ?_7 <class-name> <storage-class> | ||||||
3100 | // <cvr-qualifiers> [<name>] @ | ||||||
3101 | // NOTE: <cvr-qualifiers> here is always 'B' (const). <storage-class> | ||||||
3102 | // is always '6' for vftables. | ||||||
3103 | msvc_hashing_ostream MHO(Out); | ||||||
3104 | MicrosoftCXXNameMangler Mangler(*this, MHO); | ||||||
3105 | if (Derived->hasAttr<DLLImportAttr>()) | ||||||
3106 | Mangler.getStream() << "??_S"; | ||||||
3107 | else | ||||||
3108 | Mangler.getStream() << "??_7"; | ||||||
3109 | Mangler.mangleName(Derived); | ||||||
3110 | Mangler.getStream() << "6B"; // '6' for vftable, 'B' for const. | ||||||
3111 | for (const CXXRecordDecl *RD : BasePath) | ||||||
3112 | Mangler.mangleName(RD); | ||||||
3113 | Mangler.getStream() << '@'; | ||||||
3114 | } | ||||||
3115 | |||||||
3116 | void MicrosoftMangleContextImpl::mangleCXXVBTable( | ||||||
3117 | const CXXRecordDecl *Derived, ArrayRef<const CXXRecordDecl *> BasePath, | ||||||
3118 | raw_ostream &Out) { | ||||||
3119 | // <mangled-name> ::= ?_8 <class-name> <storage-class> | ||||||
3120 | // <cvr-qualifiers> [<name>] @ | ||||||
3121 | // NOTE: <cvr-qualifiers> here is always 'B' (const). <storage-class> | ||||||
3122 | // is always '7' for vbtables. | ||||||
3123 | msvc_hashing_ostream MHO(Out); | ||||||
3124 | MicrosoftCXXNameMangler Mangler(*this, MHO); | ||||||
3125 | Mangler.getStream() << "??_8"; | ||||||
3126 | Mangler.mangleName(Derived); | ||||||
3127 | Mangler.getStream() << "7B"; // '7' for vbtable, 'B' for const. | ||||||
3128 | for (const CXXRecordDecl *RD : BasePath) | ||||||
3129 | Mangler.mangleName(RD); | ||||||
3130 | Mangler.getStream() << '@'; | ||||||
3131 | } | ||||||
3132 | |||||||
3133 | void MicrosoftMangleContextImpl::mangleCXXRTTI(QualType T, raw_ostream &Out) { | ||||||
3134 | msvc_hashing_ostream MHO(Out); | ||||||
3135 | MicrosoftCXXNameMangler Mangler(*this, MHO); | ||||||
3136 | Mangler.getStream() << "??_R0"; | ||||||
3137 | Mangler.mangleType(T, SourceRange(), MicrosoftCXXNameMangler::QMM_Result); | ||||||
3138 | Mangler.getStream() << "@8"; | ||||||
3139 | } | ||||||
3140 | |||||||
3141 | void MicrosoftMangleContextImpl::mangleCXXRTTIName(QualType T, | ||||||
3142 | raw_ostream &Out) { | ||||||
3143 | MicrosoftCXXNameMangler Mangler(*this, Out); | ||||||
3144 | Mangler.getStream() << '.'; | ||||||
3145 | Mangler.mangleType(T, SourceRange(), MicrosoftCXXNameMangler::QMM_Result); | ||||||
3146 | } | ||||||
3147 | |||||||
3148 | void MicrosoftMangleContextImpl::mangleCXXVirtualDisplacementMap( | ||||||
3149 | const CXXRecordDecl *SrcRD, const CXXRecordDecl *DstRD, raw_ostream &Out) { | ||||||
3150 | msvc_hashing_ostream MHO(Out); | ||||||
3151 | MicrosoftCXXNameMangler Mangler(*this, MHO); | ||||||
3152 | Mangler.getStream() << "??_K"; | ||||||
3153 | Mangler.mangleName(SrcRD); | ||||||
3154 | Mangler.getStream() << "$C"; | ||||||
3155 | Mangler.mangleName(DstRD); | ||||||
3156 | } | ||||||
3157 | |||||||
3158 | void MicrosoftMangleContextImpl::mangleCXXThrowInfo(QualType T, bool IsConst, | ||||||
3159 | bool IsVolatile, | ||||||
3160 | bool IsUnaligned, | ||||||
3161 | uint32_t NumEntries, | ||||||
3162 | raw_ostream &Out) { | ||||||
3163 | msvc_hashing_ostream MHO(Out); | ||||||
3164 | MicrosoftCXXNameMangler Mangler(*this, MHO); | ||||||
3165 | Mangler.getStream() << "_TI"; | ||||||
3166 | if (IsConst) | ||||||
3167 | Mangler.getStream() << 'C'; | ||||||
3168 | if (IsVolatile) | ||||||
3169 | Mangler.getStream() << 'V'; | ||||||
3170 | if (IsUnaligned) | ||||||
3171 | Mangler.getStream() << 'U'; | ||||||
3172 | Mangler.getStream() << NumEntries; | ||||||
3173 | Mangler.mangleType(T, SourceRange(), MicrosoftCXXNameMangler::QMM_Result); | ||||||
3174 | } | ||||||
3175 | |||||||
3176 | void MicrosoftMangleContextImpl::mangleCXXCatchableTypeArray( | ||||||
3177 | QualType T, uint32_t NumEntries, raw_ostream &Out) { | ||||||
3178 | msvc_hashing_ostream MHO(Out); | ||||||
3179 | MicrosoftCXXNameMangler Mangler(*this, MHO); | ||||||
3180 | Mangler.getStream() << "_CTA"; | ||||||
3181 | Mangler.getStream() << NumEntries; | ||||||
3182 | Mangler.mangleType(T, SourceRange(), MicrosoftCXXNameMangler::QMM_Result); | ||||||
3183 | } | ||||||
3184 | |||||||
3185 | void MicrosoftMangleContextImpl::mangleCXXCatchableType( | ||||||
3186 | QualType T, const CXXConstructorDecl *CD, CXXCtorType CT, uint32_t Size, | ||||||
3187 | uint32_t NVOffset, int32_t VBPtrOffset, uint32_t VBIndex, | ||||||
3188 | raw_ostream &Out) { | ||||||
3189 | MicrosoftCXXNameMangler Mangler(*this, Out); | ||||||
3190 | Mangler.getStream() << "_CT"; | ||||||
3191 | |||||||
3192 | llvm::SmallString<64> RTTIMangling; | ||||||
3193 | { | ||||||
3194 | llvm::raw_svector_ostream Stream(RTTIMangling); | ||||||
3195 | msvc_hashing_ostream MHO(Stream); | ||||||
3196 | mangleCXXRTTI(T, MHO); | ||||||
3197 | } | ||||||
3198 | Mangler.getStream() << RTTIMangling; | ||||||
3199 | |||||||
3200 | // VS2015 and VS2017.1 omit the copy-constructor in the mangled name but | ||||||
3201 | // both older and newer versions include it. | ||||||
3202 | // FIXME: It is known that the Ctor is present in 2013, and in 2017.7 | ||||||
3203 | // (_MSC_VER 1914) and newer, and that it's omitted in 2015 and 2017.4 | ||||||
3204 | // (_MSC_VER 1911), but it's unknown when exactly it reappeared (1914? | ||||||
3205 | // Or 1912, 1913 aleady?). | ||||||
3206 | bool OmitCopyCtor = getASTContext().getLangOpts().isCompatibleWithMSVC( | ||||||
3207 | LangOptions::MSVC2015) && | ||||||
3208 | !getASTContext().getLangOpts().isCompatibleWithMSVC( | ||||||
3209 | LangOptions::MSVC2017_7); | ||||||
3210 | llvm::SmallString<64> CopyCtorMangling; | ||||||
3211 | if (!OmitCopyCtor && CD) { | ||||||
3212 | llvm::raw_svector_ostream Stream(CopyCtorMangling); | ||||||
3213 | msvc_hashing_ostream MHO(Stream); | ||||||
3214 | mangleCXXCtor(CD, CT, MHO); | ||||||
3215 | } | ||||||
3216 | Mangler.getStream() << CopyCtorMangling; | ||||||
3217 | |||||||
3218 | Mangler.getStream() << Size; | ||||||
3219 | if (VBPtrOffset == -1) { | ||||||
3220 | if (NVOffset) { | ||||||
3221 | Mangler.getStream() << NVOffset; | ||||||
3222 | } | ||||||
3223 | } else { | ||||||
3224 | Mangler.getStream() << NVOffset; | ||||||
3225 | Mangler.getStream() << VBPtrOffset; | ||||||
3226 | Mangler.getStream() << VBIndex; | ||||||
3227 | } | ||||||
3228 | } | ||||||
3229 | |||||||
3230 | void MicrosoftMangleContextImpl::mangleCXXRTTIBaseClassDescriptor( | ||||||
3231 | const CXXRecordDecl *Derived, uint32_t NVOffset, int32_t VBPtrOffset, | ||||||
3232 | uint32_t VBTableOffset, uint32_t Flags, raw_ostream &Out) { | ||||||
3233 | msvc_hashing_ostream MHO(Out); | ||||||
3234 | MicrosoftCXXNameMangler Mangler(*this, MHO); | ||||||
3235 | Mangler.getStream() << "??_R1"; | ||||||
3236 | Mangler.mangleNumber(NVOffset); | ||||||
3237 | Mangler.mangleNumber(VBPtrOffset); | ||||||
3238 | Mangler.mangleNumber(VBTableOffset); | ||||||
3239 | Mangler.mangleNumber(Flags); | ||||||
3240 | Mangler.mangleName(Derived); | ||||||
3241 | Mangler.getStream() << "8"; | ||||||
3242 | } | ||||||
3243 | |||||||
3244 | void MicrosoftMangleContextImpl::mangleCXXRTTIBaseClassArray( | ||||||
3245 | const CXXRecordDecl *Derived, raw_ostream &Out) { | ||||||
3246 | msvc_hashing_ostream MHO(Out); | ||||||
3247 | MicrosoftCXXNameMangler Mangler(*this, MHO); | ||||||
3248 | Mangler.getStream() << "??_R2"; | ||||||
3249 | Mangler.mangleName(Derived); | ||||||
3250 | Mangler.getStream() << "8"; | ||||||
3251 | } | ||||||
3252 | |||||||
3253 | void MicrosoftMangleContextImpl::mangleCXXRTTIClassHierarchyDescriptor( | ||||||
3254 | const CXXRecordDecl *Derived, raw_ostream &Out) { | ||||||
3255 | msvc_hashing_ostream MHO(Out); | ||||||
3256 | MicrosoftCXXNameMangler Mangler(*this, MHO); | ||||||
3257 | Mangler.getStream() << "??_R3"; | ||||||
3258 | Mangler.mangleName(Derived); | ||||||
3259 | Mangler.getStream() << "8"; | ||||||
3260 | } | ||||||
3261 | |||||||
3262 | void MicrosoftMangleContextImpl::mangleCXXRTTICompleteObjectLocator( | ||||||
3263 | const CXXRecordDecl *Derived, ArrayRef<const CXXRecordDecl *> BasePath, | ||||||
3264 | raw_ostream &Out) { | ||||||
3265 | // <mangled-name> ::= ?_R4 <class-name> <storage-class> | ||||||
3266 | // <cvr-qualifiers> [<name>] @ | ||||||
3267 | // NOTE: <cvr-qualifiers> here is always 'B' (const). <storage-class> | ||||||
3268 | // is always '6' for vftables. | ||||||
3269 | llvm::SmallString<64> VFTableMangling; | ||||||
3270 | llvm::raw_svector_ostream Stream(VFTableMangling); | ||||||
3271 | mangleCXXVFTable(Derived, BasePath, Stream); | ||||||
3272 | |||||||
3273 | if (VFTableMangling.startswith("??@")) { | ||||||
3274 | assert(VFTableMangling.endswith("@"))((VFTableMangling.endswith("@")) ? static_cast<void> (0 ) : __assert_fail ("VFTableMangling.endswith(\"@\")", "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 3274, __PRETTY_FUNCTION__)); | ||||||
3275 | Out << VFTableMangling << "??_R4@"; | ||||||
3276 | return; | ||||||
3277 | } | ||||||
3278 | |||||||
3279 | assert(VFTableMangling.startswith("??_7") ||((VFTableMangling.startswith("??_7") || VFTableMangling.startswith ("??_S")) ? static_cast<void> (0) : __assert_fail ("VFTableMangling.startswith(\"??_7\") || VFTableMangling.startswith(\"??_S\")" , "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 3280, __PRETTY_FUNCTION__)) | ||||||
3280 | VFTableMangling.startswith("??_S"))((VFTableMangling.startswith("??_7") || VFTableMangling.startswith ("??_S")) ? static_cast<void> (0) : __assert_fail ("VFTableMangling.startswith(\"??_7\") || VFTableMangling.startswith(\"??_S\")" , "/build/llvm-toolchain-snapshot-10~+201911111502510600c19528f1809/clang/lib/AST/MicrosoftMangle.cpp" , 3280, __PRETTY_FUNCTION__)); | ||||||
3281 | |||||||
3282 | Out << "??_R4" << StringRef(VFTableMangling).drop_front(4); | ||||||
3283 | } | ||||||
3284 | |||||||
3285 | void MicrosoftMangleContextImpl::mangleSEHFilterExpression( | ||||||
3286 | const NamedDecl *EnclosingDecl, raw_ostream &Out) { | ||||||
3287 | msvc_hashing_ostream MHO(Out); | ||||||
3288 | MicrosoftCXXNameMangler Mangler(*this, MHO); | ||||||
3289 | // The function body is in the same comdat as the function with the handler, | ||||||
3290 | // so the numbering here doesn't have to be the same across TUs. | ||||||
3291 | // | ||||||
3292 | // <mangled-name> ::= ?filt$ <filter-number> @0 | ||||||
3293 | Mangler.getStream() << "?filt$" << SEHFilterIds[EnclosingDecl]++ << "@0@"; | ||||||
3294 | Mangler.mangleName(EnclosingDecl); | ||||||
3295 | } | ||||||
3296 | |||||||
3297 | void MicrosoftMangleContextImpl::mangleSEHFinallyBlock( | ||||||
3298 | const NamedDecl *EnclosingDecl, raw_ostream &Out) { | ||||||
3299 | msvc_hashing_ostream MHO(Out); | ||||||
3300 | MicrosoftCXXNameMangler Mangler(*this, MHO); | ||||||
3301 | // The function body is in the same comdat as the function with the handler, | ||||||
3302 | // so the numbering here doesn't have to be the same across TUs. | ||||||
3303 | // | ||||||
3304 | // <mangled-name> ::= ?fin$ <filter-number> @0 | ||||||
3305 | Mangler.getStream() << "?fin$" << SEHFinallyIds[EnclosingDecl]++ << "@0@"; | ||||||
3306 | Mangler.mangleName(EnclosingDecl); | ||||||
3307 | } | ||||||
3308 | |||||||
3309 | void MicrosoftMangleContextImpl::mangleTypeName(QualType T, raw_ostream &Out) { | ||||||
3310 | // This is just a made up unique string for the purposes of tbaa. undname | ||||||
3311 | // does *not* know how to demangle it. | ||||||
3312 | MicrosoftCXXNameMangler Mangler(*this, Out); | ||||||
3313 | Mangler.getStream() << '?'; | ||||||
3314 | Mangler.mangleType(T, SourceRange()); | ||||||
3315 | } | ||||||
3316 | |||||||
3317 | void MicrosoftMangleContextImpl::mangleCXXCtor(const CXXConstructorDecl *D, | ||||||
3318 | CXXCtorType Type, | ||||||
3319 | raw_ostream &Out) { | ||||||
3320 | msvc_hashing_ostream MHO(Out); | ||||||
3321 | MicrosoftCXXNameMangler mangler(*this, MHO, D, Type); | ||||||
3322 | mangler.mangle(D); | ||||||
3323 | } | ||||||
3324 | |||||||
3325 | void MicrosoftMangleContextImpl::mangleCXXDtor(const CXXDestructorDecl *D, | ||||||
3326 | CXXDtorType Type, | ||||||
3327 | raw_ostream &Out) { | ||||||
3328 | msvc_hashing_ostream MHO(Out); | ||||||
3329 | MicrosoftCXXNameMangler mangler(*this, MHO, D, Type); | ||||||
3330 | mangler.mangle(D); | ||||||
3331 | } | ||||||
3332 | |||||||
3333 | void MicrosoftMangleContextImpl::mangleReferenceTemporary( | ||||||
3334 | const VarDecl *VD, unsigned ManglingNumber, raw_ostream &Out) { | ||||||
3335 | msvc_hashing_ostream MHO(Out); | ||||||
3336 | MicrosoftCXXNameMangler Mangler(*this, MHO); | ||||||
3337 | |||||||
3338 | Mangler.getStream() << "?$RT" << ManglingNumber << '@'; | ||||||
3339 | Mangler.mangle(VD, ""); | ||||||
| |||||||
3340 | } | ||||||
3341 | |||||||
3342 | void MicrosoftMangleContextImpl::mangleThreadSafeStaticGuardVariable( | ||||||
3343 | const VarDecl *VD, unsigned GuardNum, raw_ostream &Out) { | ||||||
3344 | msvc_hashing_ostream MHO(Out); | ||||||
3345 | MicrosoftCXXNameMangler Mangler(*this, MHO); | ||||||
3346 | |||||||
3347 | Mangler.getStream() << "?$TSS" << GuardNum << '@'; | ||||||
3348 | Mangler.mangleNestedName(VD); | ||||||
3349 | Mangler.getStream() << "@4HA"; | ||||||
3350 | } | ||||||
3351 | |||||||
3352 | void MicrosoftMangleContextImpl::mangleStaticGuardVariable(const VarDecl *VD, | ||||||
3353 | raw_ostream &Out) { | ||||||
3354 | // <guard-name> ::= ?_B <postfix> @5 <scope-depth> | ||||||
3355 | // ::= ?__J <postfix> @5 <scope-depth> | ||||||
3356 | // ::= ?$S <guard-num> @ <postfix> @4IA | ||||||
3357 | |||||||
3358 | // The first mangling is what MSVC uses to guard static locals in inline | ||||||
3359 | // functions. It uses a different mangling in external functions to support | ||||||
3360 | // guarding more than 32 variables. MSVC rejects inline functions with more | ||||||
3361 | // than 32 static locals. We don't fully implement the second mangling | ||||||
3362 | // because those guards are not externally visible, and instead use LLVM's | ||||||
3363 | // default renaming when creating a new guard variable. | ||||||
3364 | msvc_hashing_ostream MHO(Out); | ||||||
3365 | MicrosoftCXXNameMangler Mangler(*this, MHO); | ||||||
3366 | |||||||
3367 | bool Visible = VD->isExternallyVisible(); | ||||||
3368 | if (Visible) { | ||||||
3369 | Mangler.getStream() << (VD->getTLSKind() ? "??__J" : "??_B"); | ||||||
3370 | } else { | ||||||
3371 | Mangler.getStream() << "?$S1@"; | ||||||
3372 | } | ||||||
3373 | unsigned ScopeDepth = 0; | ||||||
3374 | if (Visible && !getNextDiscriminator(VD, ScopeDepth)) | ||||||
3375 | // If we do not have a discriminator and are emitting a guard variable for | ||||||
3376 | // use at global scope, then mangling the nested name will not be enough to | ||||||
3377 | // remove ambiguities. | ||||||
3378 | Mangler.mangle(VD, ""); | ||||||
3379 | else | ||||||
3380 | Mangler.mangleNestedName(VD); | ||||||
3381 | Mangler.getStream() << (Visible ? "@5" : "@4IA"); | ||||||
3382 | if (ScopeDepth) | ||||||
3383 | Mangler.mangleNumber(ScopeDepth); | ||||||
3384 | } | ||||||
3385 | |||||||
3386 | void MicrosoftMangleContextImpl::mangleInitFiniStub(const VarDecl *D, | ||||||
3387 | char CharCode, | ||||||
3388 | raw_ostream &Out) { | ||||||
3389 | msvc_hashing_ostream MHO(Out); | ||||||
3390 | MicrosoftCXXNameMangler Mangler(*this, MHO); | ||||||
3391 | Mangler.getStream() << "??__" << CharCode; | ||||||
3392 | if (D->isStaticDataMember()) { | ||||||
3393 | Mangler.getStream() << '?'; | ||||||
3394 | Mangler.mangleName(D); | ||||||
3395 | Mangler.mangleVariableEncoding(D); | ||||||
3396 | Mangler.getStream() << "@@"; | ||||||
3397 | } else { | ||||||
3398 | Mangler.mangleName(D); | ||||||
3399 | } | ||||||
3400 | // This is the function class mangling. These stubs are global, non-variadic, | ||||||
3401 | // cdecl functions that return void and take no args. | ||||||
3402 | Mangler.getStream() << "YAXXZ"; | ||||||
3403 | } | ||||||
3404 | |||||||
3405 | void MicrosoftMangleContextImpl::mangleDynamicInitializer(const VarDecl *D, | ||||||
3406 | raw_ostream &Out) { | ||||||
3407 | // <initializer-name> ::= ?__E <name> YAXXZ | ||||||
3408 | mangleInitFiniStub(D, 'E', Out); | ||||||
3409 | } | ||||||
3410 | |||||||
3411 | void | ||||||
3412 | MicrosoftMangleContextImpl::mangleDynamicAtExitDestructor(const VarDecl *D, | ||||||
3413 | raw_ostream &Out) { | ||||||
3414 | // <destructor-name> ::= ?__F <name> YAXXZ | ||||||
3415 | mangleInitFiniStub(D, 'F', Out); | ||||||
3416 | } | ||||||
3417 | |||||||
3418 | void MicrosoftMangleContextImpl::mangleStringLiteral(const StringLiteral *SL, | ||||||
3419 | raw_ostream &Out) { | ||||||
3420 | // <char-type> ::= 0 # char, char16_t, char32_t | ||||||
3421 | // # (little endian char data in mangling) | ||||||
3422 | // ::= 1 # wchar_t (big endian char data in mangling) | ||||||
3423 | // | ||||||
3424 | // <literal-length> ::= <non-negative integer> # the length of the literal | ||||||
3425 | // | ||||||
3426 | // <encoded-crc> ::= <hex digit>+ @ # crc of the literal including | ||||||
3427 | // # trailing null bytes | ||||||
3428 | // | ||||||
3429 | // <encoded-string> ::= <simple character> # uninteresting character | ||||||
3430 | // ::= '?$' <hex digit> <hex digit> # these two nibbles | ||||||
3431 | // # encode the byte for the | ||||||
3432 | // # character | ||||||
3433 | // ::= '?' [a-z] # \xe1 - \xfa | ||||||
3434 | // ::= '?' [A-Z] # \xc1 - \xda | ||||||
3435 | // ::= '?' [0-9] # [,/\:. \n\t'-] | ||||||
3436 | // | ||||||
3437 | // <literal> ::= '??_C@_' <char-type> <literal-length> <encoded-crc> | ||||||
3438 | // <encoded-string> '@' | ||||||
3439 | MicrosoftCXXNameMangler Mangler(*this, Out); | ||||||
3440 | Mangler.getStream() << "??_C@_"; | ||||||
3441 | |||||||
3442 | // The actual string length might be different from that of the string literal | ||||||
3443 | // in cases like: | ||||||
3444 | // char foo[3] = "foobar"; | ||||||
3445 | // char bar[42] = "foobar"; | ||||||
3446 | // Where it is truncated or zero-padded to fit the array. This is the length | ||||||
3447 | // used for mangling, and any trailing null-bytes also need to be mangled. | ||||||
3448 | unsigned StringLength = getASTContext() | ||||||
3449 | .getAsConstantArrayType(SL->getType()) | ||||||
3450 | ->getSize() | ||||||
3451 | .getZExtValue(); | ||||||
3452 | unsigned StringByteLength = StringLength * SL->getCharByteWidth(); | ||||||
3453 | |||||||
3454 | // <char-type>: The "kind" of string literal is encoded into the mangled name. | ||||||
3455 | if (SL->isWide()) | ||||||
3456 | Mangler.getStream() << '1'; | ||||||
3457 | else | ||||||
3458 | Mangler.getStream() << '0'; | ||||||
3459 | |||||||
3460 | // <literal-length>: The next part of the mangled name consists of the length | ||||||
3461 | // of the string in bytes. | ||||||
3462 | Mangler.mangleNumber(StringByteLength); | ||||||
3463 | |||||||
3464 | auto GetLittleEndianByte = [&SL](unsigned Index) { | ||||||
3465 | unsigned CharByteWidth = SL->getCharByteWidth(); | ||||||
3466 | if (Index / CharByteWidth >= SL->getLength()) | ||||||
3467 | return static_cast<char>(0); | ||||||
3468 | uint32_t CodeUnit = SL->getCodeUnit(Index / CharByteWidth); | ||||||
3469 | unsigned OffsetInCodeUnit = Index % CharByteWidth; | ||||||
3470 | return static_cast<char>((CodeUnit >> (8 * OffsetInCodeUnit)) & 0xff); | ||||||
3471 | }; | ||||||
3472 | |||||||
3473 | auto GetBigEndianByte = [&SL](unsigned Index) { | ||||||
3474 | unsigned CharByteWidth = SL->getCharByteWidth(); | ||||||
3475 | if (Index / CharByteWidth >= SL->getLength()) | ||||||
3476 | return static_cast<char>(0); | ||||||
3477 | uint32_t CodeUnit = SL->getCodeUnit(Index / CharByteWidth); | ||||||
3478 | unsigned OffsetInCodeUnit = (CharByteWidth - 1) - (Index % CharByteWidth); | ||||||
3479 | return static_cast<char>((CodeUnit >> (8 * OffsetInCodeUnit)) & 0xff); | ||||||
3480 | }; | ||||||
3481 | |||||||
3482 | // CRC all the bytes of the StringLiteral. | ||||||
3483 | llvm::JamCRC JC; | ||||||
3484 | for (unsigned I = 0, E = StringByteLength; I != E; ++I) | ||||||
3485 | JC.update(GetLittleEndianByte(I)); | ||||||
3486 | |||||||
3487 | // <encoded-crc>: The CRC is encoded utilizing the standard number mangling | ||||||
3488 | // scheme. | ||||||
3489 | Mangler.mangleNumber(JC.getCRC()); | ||||||
3490 | |||||||
3491 | // <encoded-string>: The mangled name also contains the first 32 bytes | ||||||
3492 | // (including null-terminator bytes) of the encoded StringLiteral. | ||||||
3493 | // Each character is encoded by splitting them into bytes and then encoding | ||||||
3494 | // the constituent bytes. | ||||||
3495 | auto MangleByte = [&Mangler](char Byte) { | ||||||
3496 | // There are five different manglings for characters: | ||||||
3497 | // - [a-zA-Z0-9_$]: A one-to-one mapping. | ||||||
3498 | // - ?[a-z]: The range from \xe1 to \xfa. | ||||||
3499 | // - ?[A-Z]: The range from \xc1 to \xda. | ||||||
3500 | // - ?[0-9]: The set of [,/\:. \n\t'-]. | ||||||
3501 | // - ?$XX: A fallback which maps nibbles. | ||||||
3502 | if (isIdentifierBody(Byte, /*AllowDollar=*/true)) { | ||||||
3503 | Mangler.getStream() << Byte; | ||||||
3504 | } else if (isLetter(Byte & 0x7f)) { | ||||||
3505 | Mangler.getStream() << '?' << static_cast<char>(Byte & 0x7f); | ||||||
3506 | } else { | ||||||
3507 | const char SpecialChars[] = {',', '/', '\\', ':', '.', | ||||||
3508 | ' ', '\n', '\t', '\'', '-'}; | ||||||
3509 | const char *Pos = llvm::find(SpecialChars, Byte); | ||||||
3510 | if (Pos != std::end(SpecialChars)) { | ||||||
3511 | Mangler.getStream() << '?' << (Pos - std::begin(SpecialChars)); | ||||||
3512 | } else { | ||||||
3513 | Mangler.getStream() << "?$"; | ||||||
3514 | Mangler.getStream() << static_cast<char>('A' + ((Byte >> 4) & 0xf)); | ||||||
3515 | Mangler.getStream() << static_cast<char>('A' + (Byte & 0xf)); | ||||||
3516 | } | ||||||
3517 | } | ||||||
3518 | }; | ||||||
3519 | |||||||
3520 | // Enforce our 32 bytes max, except wchar_t which gets 32 chars instead. | ||||||
3521 | unsigned MaxBytesToMangle = SL->isWide() ? 64U : 32U; | ||||||
3522 | unsigned NumBytesToMangle = std::min(MaxBytesToMangle, StringByteLength); | ||||||
3523 | for (unsigned I = 0; I != NumBytesToMangle; ++I) { | ||||||
3524 | if (SL->isWide()) | ||||||
3525 | MangleByte(GetBigEndianByte(I)); | ||||||
3526 | else | ||||||
3527 | MangleByte(GetLittleEndianByte(I)); | ||||||
3528 | } | ||||||
3529 | |||||||
3530 | Mangler.getStream() << '@'; | ||||||
3531 | } | ||||||
3532 | |||||||
3533 | MicrosoftMangleContext * | ||||||
3534 | MicrosoftMangleContext::create(ASTContext &Context, DiagnosticsEngine &Diags) { | ||||||
3535 | return new MicrosoftMangleContextImpl(Context, Diags); | ||||||
3536 | } |
1 | /*===- TableGen'erated file -------------------------------------*- C++ -*-===*\ |
2 | |* *| |
3 | |* An x-macro database of Clang type nodes *| |
4 | |* *| |
5 | |* Automatically generated file, do not edit! *| |
6 | |* *| |
7 | \*===----------------------------------------------------------------------===*/ |
8 | |
9 | #ifndef ABSTRACT_TYPE |
10 | # define ABSTRACT_TYPE(Class, Base) TYPE(Class, Base) |
11 | #endif |
12 | #ifndef NON_CANONICAL_TYPE |
13 | # define NON_CANONICAL_TYPE(Class, Base) TYPE(Class, Base) |
14 | #endif |
15 | #ifndef DEPENDENT_TYPE |
16 | # define DEPENDENT_TYPE(Class, Base) TYPE(Class, Base) |
17 | #endif |
18 | #ifndef NON_CANONICAL_UNLESS_DEPENDENT_TYPE |
19 | # define NON_CANONICAL_UNLESS_DEPENDENT_TYPE(Class, Base) TYPE(Class, Base) |
20 | #endif |
21 | NON_CANONICAL_TYPE(Adjusted, Type) |
22 | ABSTRACT_TYPE(Array, Type) |
23 | TYPE(Atomic, Type) |
24 | NON_CANONICAL_TYPE(Attributed, Type) |
25 | TYPE(Auto, DeducedType) |
26 | TYPE(BlockPointer, Type) |
27 | TYPE(Builtin, Type) |
28 | TYPE(Complex, Type) |
29 | TYPE(ConstantArray, ArrayType) |
30 | NON_CANONICAL_TYPE(Decayed, AdjustedType) |
31 | NON_CANONICAL_UNLESS_DEPENDENT_TYPE(Decltype, Type) |
32 | TYPE(DeducedTemplateSpecialization, DeducedType) |
33 | ABSTRACT_TYPE(Deduced, Type) |
34 | DEPENDENT_TYPE(DependentAddressSpace, Type) |
35 | DEPENDENT_TYPE(DependentName, Type) |
36 | DEPENDENT_TYPE(DependentSizedArray, ArrayType) |
37 | DEPENDENT_TYPE(DependentSizedExtVector, Type) |
38 | DEPENDENT_TYPE(DependentTemplateSpecialization, Type) |
39 | DEPENDENT_TYPE(DependentVector, Type) |
40 | NON_CANONICAL_TYPE(Elaborated, Type) |
41 | TYPE(Enum, TagType) |
42 | TYPE(ExtVector, VectorType) |
43 | TYPE(FunctionNoProto, FunctionType) |
44 | TYPE(FunctionProto, FunctionType) |
45 | ABSTRACT_TYPE(Function, Type) |
46 | TYPE(IncompleteArray, ArrayType) |
47 | DEPENDENT_TYPE(InjectedClassName, Type) |
48 | TYPE(LValueReference, ReferenceType) |
49 | NON_CANONICAL_TYPE(MacroQualified, Type) |
50 | TYPE(MemberPointer, Type) |
51 | TYPE(ObjCInterface, ObjCObjectType) |
52 | TYPE(ObjCObjectPointer, Type) |
53 | TYPE(ObjCObject, Type) |
54 | NON_CANONICAL_TYPE(ObjCTypeParam, Type) |
55 | NON_CANONICAL_UNLESS_DEPENDENT_TYPE(PackExpansion, Type) |
56 | NON_CANONICAL_TYPE(Paren, Type) |
57 | TYPE(Pipe, Type) |
58 | TYPE(Pointer, Type) |
59 | TYPE(RValueReference, ReferenceType) |
60 | TYPE(Record, TagType) |
61 | ABSTRACT_TYPE(Reference, Type) |
62 | DEPENDENT_TYPE(SubstTemplateTypeParmPack, Type) |
63 | NON_CANONICAL_TYPE(SubstTemplateTypeParm, Type) |
64 | ABSTRACT_TYPE(Tag, Type) |
65 | NON_CANONICAL_UNLESS_DEPENDENT_TYPE(TemplateSpecialization, Type) |
66 | DEPENDENT_TYPE(TemplateTypeParm, Type) |
67 | NON_CANONICAL_UNLESS_DEPENDENT_TYPE(TypeOfExpr, Type) |
68 | NON_CANONICAL_UNLESS_DEPENDENT_TYPE(TypeOf, Type) |
69 | NON_CANONICAL_TYPE(Typedef, Type) |
70 | NON_CANONICAL_UNLESS_DEPENDENT_TYPE(UnaryTransform, Type) |
71 | DEPENDENT_TYPE(UnresolvedUsing, Type) |
72 | TYPE(VariableArray, ArrayType) |
73 | TYPE(Vector, Type) |
74 | #ifdef LAST_TYPE |
75 | LAST_TYPE(Vector) |
76 | #undef LAST_TYPE |
77 | #endif |
78 | #ifdef LEAF_TYPE |
79 | LEAF_TYPE(Builtin) |
80 | LEAF_TYPE(Enum) |
81 | LEAF_TYPE(InjectedClassName) |
82 | LEAF_TYPE(ObjCInterface) |
83 | LEAF_TYPE(Record) |
84 | LEAF_TYPE(TemplateTypeParm) |
85 | #undef LEAF_TYPE |
86 | #endif |
87 | #undef TYPE |
88 | #undef ABSTRACT_TYPE |
89 | #undef ABSTRACT_TYPE |
90 | #undef NON_CANONICAL_TYPE |
91 | #undef DEPENDENT_TYPE |
92 | #undef NON_CANONICAL_UNLESS_DEPENDENT_TYPE |
1 | //===- LangOptions.h - C Language Family Language Options -------*- C++ -*-===// |
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 | /// \file |
10 | /// Defines the clang::LangOptions interface. |
11 | // |
12 | //===----------------------------------------------------------------------===// |
13 | |
14 | #ifndef LLVM_CLANG_BASIC_LANGOPTIONS_H |
15 | #define LLVM_CLANG_BASIC_LANGOPTIONS_H |
16 | |
17 | #include "clang/Basic/CommentOptions.h" |
18 | #include "clang/Basic/LLVM.h" |
19 | #include "clang/Basic/ObjCRuntime.h" |
20 | #include "clang/Basic/Sanitizers.h" |
21 | #include "clang/Basic/Visibility.h" |
22 | #include "llvm/ADT/StringRef.h" |
23 | #include "llvm/ADT/Triple.h" |
24 | #include <string> |
25 | #include <vector> |
26 | |
27 | namespace clang { |
28 | |
29 | /// Bitfields of LangOptions, split out from LangOptions in order to ensure that |
30 | /// this large collection of bitfields is a trivial class type. |
31 | class LangOptionsBase { |
32 | public: |
33 | // Define simple language options (with no accessors). |
34 | #define LANGOPT(Name, Bits, Default, Description) unsigned Name : Bits; |
35 | #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) |
36 | #include "clang/Basic/LangOptions.def" |
37 | |
38 | protected: |
39 | // Define language options of enumeration type. These are private, and will |
40 | // have accessors (below). |
41 | #define LANGOPT(Name, Bits, Default, Description) |
42 | #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ |
43 | unsigned Name : Bits; |
44 | #include "clang/Basic/LangOptions.def" |
45 | }; |
46 | |
47 | /// Keeps track of the various options that can be |
48 | /// enabled, which controls the dialect of C or C++ that is accepted. |
49 | class LangOptions : public LangOptionsBase { |
50 | public: |
51 | using Visibility = clang::Visibility; |
52 | |
53 | enum GCMode { NonGC, GCOnly, HybridGC }; |
54 | enum StackProtectorMode { SSPOff, SSPOn, SSPStrong, SSPReq }; |
55 | |
56 | // Automatic variables live on the stack, and when trivial they're usually |
57 | // uninitialized because it's undefined behavior to use them without |
58 | // initializing them. |
59 | enum class TrivialAutoVarInitKind { Uninitialized, Zero, Pattern }; |
60 | |
61 | enum SignedOverflowBehaviorTy { |
62 | // Default C standard behavior. |
63 | SOB_Undefined, |
64 | |
65 | // -fwrapv |
66 | SOB_Defined, |
67 | |
68 | // -ftrapv |
69 | SOB_Trapping |
70 | }; |
71 | |
72 | // FIXME: Unify with TUKind. |
73 | enum CompilingModuleKind { |
74 | /// Not compiling a module interface at all. |
75 | CMK_None, |
76 | |
77 | /// Compiling a module from a module map. |
78 | CMK_ModuleMap, |
79 | |
80 | /// Compiling a module from a list of header files. |
81 | CMK_HeaderModule, |
82 | |
83 | /// Compiling a C++ modules TS module interface unit. |
84 | CMK_ModuleInterface, |
85 | }; |
86 | |
87 | enum PragmaMSPointersToMembersKind { |
88 | PPTMK_BestCase, |
89 | PPTMK_FullGeneralitySingleInheritance, |
90 | PPTMK_FullGeneralityMultipleInheritance, |
91 | PPTMK_FullGeneralityVirtualInheritance |
92 | }; |
93 | |
94 | enum DefaultCallingConvention { |
95 | DCC_None, |
96 | DCC_CDecl, |
97 | DCC_FastCall, |
98 | DCC_StdCall, |
99 | DCC_VectorCall, |
100 | DCC_RegCall |
101 | }; |
102 | |
103 | enum AddrSpaceMapMangling { ASMM_Target, ASMM_On, ASMM_Off }; |
104 | |
105 | // Corresponds to _MSC_VER |
106 | enum MSVCMajorVersion { |
107 | MSVC2010 = 1600, |
108 | MSVC2012 = 1700, |
109 | MSVC2013 = 1800, |
110 | MSVC2015 = 1900, |
111 | MSVC2017 = 1910, |
112 | MSVC2017_5 = 1912, |
113 | MSVC2017_7 = 1914, |
114 | }; |
115 | |
116 | /// Clang versions with different platform ABI conformance. |
117 | enum class ClangABI { |
118 | /// Attempt to be ABI-compatible with code generated by Clang 3.8.x |
119 | /// (SVN r257626). This causes <1 x long long> to be passed in an |
120 | /// integer register instead of an SSE register on x64_64. |
121 | Ver3_8, |
122 | |
123 | /// Attempt to be ABI-compatible with code generated by Clang 4.0.x |
124 | /// (SVN r291814). This causes move operations to be ignored when |
125 | /// determining whether a class type can be passed or returned directly. |
126 | Ver4, |
127 | |
128 | /// Attempt to be ABI-compatible with code generated by Clang 6.0.x |
129 | /// (SVN r321711). This causes determination of whether a type is |
130 | /// standard-layout to ignore collisions between empty base classes |
131 | /// and between base classes and member subobjects, which affects |
132 | /// whether we reuse base class tail padding in some ABIs. |
133 | Ver6, |
134 | |
135 | /// Attempt to be ABI-compatible with code generated by Clang 7.0.x |
136 | /// (SVN r338536). This causes alignof (C++) and _Alignof (C11) to be |
137 | /// compatible with __alignof (i.e., return the preferred alignment) |
138 | /// rather than returning the required alignment. |
139 | Ver7, |
140 | |
141 | /// Attempt to be ABI-compatible with code generated by Clang 9.0.x |
142 | /// (SVN r351319). This causes vectors of __int128 to be passed in memory |
143 | /// instead of passing in multiple scalar registers on x86_64 on Linux and |
144 | /// NetBSD. |
145 | Ver9, |
146 | |
147 | /// Conform to the underlying platform's C and C++ ABIs as closely |
148 | /// as we can. |
149 | Latest |
150 | }; |
151 | |
152 | enum class CoreFoundationABI { |
153 | /// No interoperability ABI has been specified |
154 | Unspecified, |
155 | /// CoreFoundation does not have any language interoperability |
156 | Standalone, |
157 | /// Interoperability with the ObjectiveC runtime |
158 | ObjectiveC, |
159 | /// Interoperability with the latest known version of the Swift runtime |
160 | Swift, |
161 | /// Interoperability with the Swift 5.0 runtime |
162 | Swift5_0, |
163 | /// Interoperability with the Swift 4.2 runtime |
164 | Swift4_2, |
165 | /// Interoperability with the Swift 4.1 runtime |
166 | Swift4_1, |
167 | }; |
168 | |
169 | enum FPContractModeKind { |
170 | // Form fused FP ops only where result will not be affected. |
171 | FPC_Off, |
172 | |
173 | // Form fused FP ops according to FP_CONTRACT rules. |
174 | FPC_On, |
175 | |
176 | // Aggressively fuse FP ops (E.g. FMA). |
177 | FPC_Fast |
178 | }; |
179 | |
180 | // TODO: merge FEnvAccessModeKind and FPContractModeKind |
181 | enum FEnvAccessModeKind { |
182 | FEA_Off, |
183 | |
184 | FEA_On |
185 | }; |
186 | |
187 | // Values of the following enumerations correspond to metadata arguments |
188 | // specified for constrained floating-point intrinsics: |
189 | // http://llvm.org/docs/LangRef.html#constrained-floating-point-intrinsics. |
190 | |
191 | /// Possible rounding modes. |
192 | enum FPRoundingModeKind { |
193 | /// Rounding to nearest, corresponds to "round.tonearest". |
194 | FPR_ToNearest, |
195 | /// Rounding toward -Inf, corresponds to "round.downward". |
196 | FPR_Downward, |
197 | /// Rounding toward +Inf, corresponds to "round.upward". |
198 | FPR_Upward, |
199 | /// Rounding toward zero, corresponds to "round.towardzero". |
200 | FPR_TowardZero, |
201 | /// Is determined by runtime environment, corresponds to "round.dynamic". |
202 | FPR_Dynamic |
203 | }; |
204 | |
205 | /// Possible floating point exception behavior. |
206 | enum FPExceptionModeKind { |
207 | /// Assume that floating-point exceptions are masked. |
208 | FPE_Ignore, |
209 | /// Transformations do not cause new exceptions but may hide some. |
210 | FPE_MayTrap, |
211 | /// Strictly preserve the floating-point exception semantics. |
212 | FPE_Strict |
213 | }; |
214 | |
215 | enum class LaxVectorConversionKind { |
216 | /// Permit no implicit vector bitcasts. |
217 | None, |
218 | /// Permit vector bitcasts between integer vectors with different numbers |
219 | /// of elements but the same total bit-width. |
220 | Integer, |
221 | /// Permit vector bitcasts between all vectors with the same total |
222 | /// bit-width. |
223 | All, |
224 | }; |
225 | |
226 | public: |
227 | /// Set of enabled sanitizers. |
228 | SanitizerSet Sanitize; |
229 | |
230 | /// Paths to blacklist files specifying which objects |
231 | /// (files, functions, variables) should not be instrumented. |
232 | std::vector<std::string> SanitizerBlacklistFiles; |
233 | |
234 | /// Paths to the XRay "always instrument" files specifying which |
235 | /// objects (files, functions, variables) should be imbued with the XRay |
236 | /// "always instrument" attribute. |
237 | /// WARNING: This is a deprecated field and will go away in the future. |
238 | std::vector<std::string> XRayAlwaysInstrumentFiles; |
239 | |
240 | /// Paths to the XRay "never instrument" files specifying which |
241 | /// objects (files, functions, variables) should be imbued with the XRay |
242 | /// "never instrument" attribute. |
243 | /// WARNING: This is a deprecated field and will go away in the future. |
244 | std::vector<std::string> XRayNeverInstrumentFiles; |
245 | |
246 | /// Paths to the XRay attribute list files, specifying which objects |
247 | /// (files, functions, variables) should be imbued with the appropriate XRay |
248 | /// attribute(s). |
249 | std::vector<std::string> XRayAttrListFiles; |
250 | |
251 | clang::ObjCRuntime ObjCRuntime; |
252 | |
253 | CoreFoundationABI CFRuntime = CoreFoundationABI::Unspecified; |
254 | |
255 | std::string ObjCConstantStringClass; |
256 | |
257 | /// The name of the handler function to be called when -ftrapv is |
258 | /// specified. |
259 | /// |
260 | /// If none is specified, abort (GCC-compatible behaviour). |
261 | std::string OverflowHandler; |
262 | |
263 | /// The module currently being compiled as specified by -fmodule-name. |
264 | std::string ModuleName; |
265 | |
266 | /// The name of the current module, of which the main source file |
267 | /// is a part. If CompilingModule is set, we are compiling the interface |
268 | /// of this module, otherwise we are compiling an implementation file of |
269 | /// it. This starts as ModuleName in case -fmodule-name is provided and |
270 | /// changes during compilation to reflect the current module. |
271 | std::string CurrentModule; |
272 | |
273 | /// The names of any features to enable in module 'requires' decls |
274 | /// in addition to the hard-coded list in Module.cpp and the target features. |
275 | /// |
276 | /// This list is sorted. |
277 | std::vector<std::string> ModuleFeatures; |
278 | |
279 | /// Options for parsing comments. |
280 | CommentOptions CommentOpts; |
281 | |
282 | /// A list of all -fno-builtin-* function names (e.g., memset). |
283 | std::vector<std::string> NoBuiltinFuncs; |
284 | |
285 | /// Triples of the OpenMP targets that the host code codegen should |
286 | /// take into account in order to generate accurate offloading descriptors. |
287 | std::vector<llvm::Triple> OMPTargetTriples; |
288 | |
289 | /// Name of the IR file that contains the result of the OpenMP target |
290 | /// host code generation. |
291 | std::string OMPHostIRFile; |
292 | |
293 | /// Indicates whether the front-end is explicitly told that the |
294 | /// input is a header file (i.e. -x c-header). |
295 | bool IsHeaderFile = false; |
296 | |
297 | LangOptions(); |
298 | |
299 | // Define accessors/mutators for language options of enumeration type. |
300 | #define LANGOPT(Name, Bits, Default, Description) |
301 | #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ |
302 | Type get##Name() const { return static_cast<Type>(Name); } \ |
303 | void set##Name(Type Value) { Name = static_cast<unsigned>(Value); } |
304 | #include "clang/Basic/LangOptions.def" |
305 | |
306 | /// Are we compiling a module interface (.cppm or module map)? |
307 | bool isCompilingModule() const { |
308 | return getCompilingModule() != CMK_None; |
309 | } |
310 | |
311 | /// Do we need to track the owning module for a local declaration? |
312 | bool trackLocalOwningModule() const { |
313 | return isCompilingModule() || ModulesLocalVisibility; |
314 | } |
315 | |
316 | bool isSignedOverflowDefined() const { |
317 | return getSignedOverflowBehavior() == SOB_Defined; |
318 | } |
319 | |
320 | bool isSubscriptPointerArithmetic() const { |
321 | return ObjCRuntime.isSubscriptPointerArithmetic() && |
322 | !ObjCSubscriptingLegacyRuntime; |
323 | } |
324 | |
325 | bool isCompatibleWithMSVC(MSVCMajorVersion MajorVersion) const { |
326 | return MSCompatibilityVersion >= MajorVersion * 100000U; |
327 | } |
328 | |
329 | /// Reset all of the options that are not considered when building a |
330 | /// module. |
331 | void resetNonModularOptions(); |
332 | |
333 | /// Is this a libc/libm function that is no longer recognized as a |
334 | /// builtin because a -fno-builtin-* option has been specified? |
335 | bool isNoBuiltinFunc(StringRef Name) const; |
336 | |
337 | /// True if any ObjC types may have non-trivial lifetime qualifiers. |
338 | bool allowsNonTrivialObjCLifetimeQualifiers() const { |
339 | return ObjCAutoRefCount || ObjCWeak; |
340 | } |
341 | |
342 | bool assumeFunctionsAreConvergent() const { |
343 | return (CUDA && CUDAIsDevice) || OpenCL; |
344 | } |
345 | |
346 | /// Return the OpenCL C or C++ version as a VersionTuple. |
347 | VersionTuple getOpenCLVersionTuple() const; |
348 | }; |
349 | |
350 | /// Floating point control options |
351 | class FPOptions { |
352 | public: |
353 | FPOptions() : fp_contract(LangOptions::FPC_Off), |
354 | fenv_access(LangOptions::FEA_Off) {} |
355 | |
356 | // Used for serializing. |
357 | explicit FPOptions(unsigned I) |
358 | : fp_contract(static_cast<LangOptions::FPContractModeKind>(I & 3)), |
359 | fenv_access(static_cast<LangOptions::FEnvAccessModeKind>((I >> 2) & 1)) |
360 | {} |
361 | |
362 | explicit FPOptions(const LangOptions &LangOpts) |
363 | : fp_contract(LangOpts.getDefaultFPContractMode()), |
364 | fenv_access(LangOptions::FEA_Off) {} |
365 | // FIXME: Use getDefaultFEnvAccessMode() when available. |
366 | |
367 | bool allowFPContractWithinStatement() const { |
368 | return fp_contract == LangOptions::FPC_On; |
369 | } |
370 | |
371 | bool allowFPContractAcrossStatement() const { |
372 | return fp_contract == LangOptions::FPC_Fast; |
373 | } |
374 | |
375 | void setAllowFPContractWithinStatement() { |
376 | fp_contract = LangOptions::FPC_On; |
377 | } |
378 | |
379 | void setAllowFPContractAcrossStatement() { |
380 | fp_contract = LangOptions::FPC_Fast; |
381 | } |
382 | |
383 | void setDisallowFPContract() { fp_contract = LangOptions::FPC_Off; } |
384 | |
385 | bool allowFEnvAccess() const { |
386 | return fenv_access == LangOptions::FEA_On; |
387 | } |
388 | |
389 | void setAllowFEnvAccess() { |
390 | fenv_access = LangOptions::FEA_On; |
391 | } |
392 | |
393 | void setDisallowFEnvAccess() { fenv_access = LangOptions::FEA_Off; } |
394 | |
395 | /// Used to serialize this. |
396 | unsigned getInt() const { return fp_contract | (fenv_access << 2); } |
397 | |
398 | private: |
399 | /// Adjust BinaryOperator::FPFeatures to match the total bit-field size |
400 | /// of these two. |
401 | unsigned fp_contract : 2; |
402 | unsigned fenv_access : 1; |
403 | }; |
404 | |
405 | /// Describes the kind of translation unit being processed. |
406 | enum TranslationUnitKind { |
407 | /// The translation unit is a complete translation unit. |
408 | TU_Complete, |
409 | |
410 | /// The translation unit is a prefix to a translation unit, and is |
411 | /// not complete. |
412 | TU_Prefix, |
413 | |
414 | /// The translation unit is a module. |
415 | TU_Module |
416 | }; |
417 | |
418 | } // namespace clang |
419 | |
420 | #endif // LLVM_CLANG_BASIC_LANGOPTIONS_H |