File: | clang/lib/AST/MicrosoftMangle.cpp |
Warning: | line 2419, column 27 Called C++ object pointer is null |
Press '?' to see keyboard shortcuts
Keyboard shortcuts:
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~++20200110111110+a1cc19b5814/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~++20200110111110+a1cc19b5814/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~++20200110111110+a1cc19b5814/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~++20200110111110+a1cc19b5814/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 | const bool PointersAre64Bit; | |||
283 | ||||
284 | public: | |||
285 | enum QualifierMangleMode { QMM_Drop, QMM_Mangle, QMM_Escape, QMM_Result }; | |||
286 | ||||
287 | MicrosoftCXXNameMangler(MicrosoftMangleContextImpl &C, raw_ostream &Out_) | |||
288 | : Context(C), Out(Out_), Structor(nullptr), StructorType(-1), | |||
289 | TemplateArgStringStorage(TemplateArgStringStorageAlloc), | |||
290 | PointersAre64Bit(C.getASTContext().getTargetInfo().getPointerWidth(0) == | |||
291 | 64) {} | |||
292 | ||||
293 | MicrosoftCXXNameMangler(MicrosoftMangleContextImpl &C, raw_ostream &Out_, | |||
294 | const CXXConstructorDecl *D, CXXCtorType Type) | |||
295 | : Context(C), Out(Out_), Structor(getStructor(D)), StructorType(Type), | |||
296 | TemplateArgStringStorage(TemplateArgStringStorageAlloc), | |||
297 | PointersAre64Bit(C.getASTContext().getTargetInfo().getPointerWidth(0) == | |||
298 | 64) {} | |||
299 | ||||
300 | MicrosoftCXXNameMangler(MicrosoftMangleContextImpl &C, raw_ostream &Out_, | |||
301 | const CXXDestructorDecl *D, CXXDtorType Type) | |||
302 | : Context(C), Out(Out_), Structor(getStructor(D)), StructorType(Type), | |||
303 | TemplateArgStringStorage(TemplateArgStringStorageAlloc), | |||
304 | PointersAre64Bit(C.getASTContext().getTargetInfo().getPointerWidth(0) == | |||
305 | 64) {} | |||
306 | ||||
307 | raw_ostream &getStream() const { return Out; } | |||
308 | ||||
309 | void mangle(const NamedDecl *D, StringRef Prefix = "?"); | |||
310 | void mangleName(const NamedDecl *ND); | |||
311 | void mangleFunctionEncoding(const FunctionDecl *FD, bool ShouldMangle); | |||
312 | void mangleVariableEncoding(const VarDecl *VD); | |||
313 | void mangleMemberDataPointer(const CXXRecordDecl *RD, const ValueDecl *VD); | |||
314 | void mangleMemberFunctionPointer(const CXXRecordDecl *RD, | |||
315 | const CXXMethodDecl *MD); | |||
316 | void mangleVirtualMemPtrThunk(const CXXMethodDecl *MD, | |||
317 | const MethodVFTableLocation &ML); | |||
318 | void mangleNumber(int64_t Number); | |||
319 | void mangleTagTypeKind(TagTypeKind TK); | |||
320 | void mangleArtificialTagType(TagTypeKind TK, StringRef UnqualifiedName, | |||
321 | ArrayRef<StringRef> NestedNames = None); | |||
322 | void mangleAddressSpaceType(QualType T, Qualifiers Quals, SourceRange Range); | |||
323 | void mangleType(QualType T, SourceRange Range, | |||
324 | QualifierMangleMode QMM = QMM_Mangle); | |||
325 | void mangleFunctionType(const FunctionType *T, | |||
326 | const FunctionDecl *D = nullptr, | |||
327 | bool ForceThisQuals = false, | |||
328 | bool MangleExceptionSpec = true); | |||
329 | void mangleNestedName(const NamedDecl *ND); | |||
330 | ||||
331 | private: | |||
332 | bool isStructorDecl(const NamedDecl *ND) const { | |||
333 | return ND == Structor || getStructor(ND) == Structor; | |||
334 | } | |||
335 | ||||
336 | bool is64BitPointer(Qualifiers Quals) const { | |||
337 | LangAS AddrSpace = Quals.getAddressSpace(); | |||
338 | return AddrSpace == LangAS::ptr64 || | |||
339 | (PointersAre64Bit && !(AddrSpace == LangAS::ptr32_sptr || | |||
340 | AddrSpace == LangAS::ptr32_uptr)); | |||
341 | } | |||
342 | ||||
343 | void mangleUnqualifiedName(const NamedDecl *ND) { | |||
344 | mangleUnqualifiedName(ND, ND->getDeclName()); | |||
345 | } | |||
346 | void mangleUnqualifiedName(const NamedDecl *ND, DeclarationName Name); | |||
347 | void mangleSourceName(StringRef Name); | |||
348 | void mangleOperatorName(OverloadedOperatorKind OO, SourceLocation Loc); | |||
349 | void mangleCXXDtorType(CXXDtorType T); | |||
350 | void mangleQualifiers(Qualifiers Quals, bool IsMember); | |||
351 | void mangleRefQualifier(RefQualifierKind RefQualifier); | |||
352 | void manglePointerCVQualifiers(Qualifiers Quals); | |||
353 | void manglePointerExtQualifiers(Qualifiers Quals, QualType PointeeType); | |||
354 | ||||
355 | void mangleUnscopedTemplateName(const TemplateDecl *ND); | |||
356 | void | |||
357 | mangleTemplateInstantiationName(const TemplateDecl *TD, | |||
358 | const TemplateArgumentList &TemplateArgs); | |||
359 | void mangleObjCMethodName(const ObjCMethodDecl *MD); | |||
360 | ||||
361 | void mangleFunctionArgumentType(QualType T, SourceRange Range); | |||
362 | void manglePassObjectSizeArg(const PassObjectSizeAttr *POSA); | |||
363 | ||||
364 | bool isArtificialTagType(QualType T) const; | |||
365 | ||||
366 | // Declare manglers for every type class. | |||
367 | #define ABSTRACT_TYPE(CLASS, PARENT) | |||
368 | #define NON_CANONICAL_TYPE(CLASS, PARENT) | |||
369 | #define TYPE(CLASS, PARENT) void mangleType(const CLASS##Type *T, \ | |||
370 | Qualifiers Quals, \ | |||
371 | SourceRange Range); | |||
372 | #include "clang/AST/TypeNodes.inc" | |||
373 | #undef ABSTRACT_TYPE | |||
374 | #undef NON_CANONICAL_TYPE | |||
375 | #undef TYPE | |||
376 | ||||
377 | void mangleType(const TagDecl *TD); | |||
378 | void mangleDecayedArrayType(const ArrayType *T); | |||
379 | void mangleArrayType(const ArrayType *T); | |||
380 | void mangleFunctionClass(const FunctionDecl *FD); | |||
381 | void mangleCallingConvention(CallingConv CC); | |||
382 | void mangleCallingConvention(const FunctionType *T); | |||
383 | void mangleIntegerLiteral(const llvm::APSInt &Number, bool IsBoolean); | |||
384 | void mangleExpression(const Expr *E); | |||
385 | void mangleThrowSpecification(const FunctionProtoType *T); | |||
386 | ||||
387 | void mangleTemplateArgs(const TemplateDecl *TD, | |||
388 | const TemplateArgumentList &TemplateArgs); | |||
389 | void mangleTemplateArg(const TemplateDecl *TD, const TemplateArgument &TA, | |||
390 | const NamedDecl *Parm); | |||
391 | ||||
392 | void mangleObjCProtocol(const ObjCProtocolDecl *PD); | |||
393 | void mangleObjCLifetime(const QualType T, Qualifiers Quals, | |||
394 | SourceRange Range); | |||
395 | void mangleObjCKindOfType(const ObjCObjectType *T, Qualifiers Quals, | |||
396 | SourceRange Range); | |||
397 | }; | |||
398 | } | |||
399 | ||||
400 | MicrosoftMangleContextImpl::MicrosoftMangleContextImpl(ASTContext &Context, | |||
401 | DiagnosticsEngine &Diags) | |||
402 | : MicrosoftMangleContext(Context, Diags) { | |||
403 | // To mangle anonymous namespaces, hash the path to the main source file. The | |||
404 | // path should be whatever (probably relative) path was passed on the command | |||
405 | // line. The goal is for the compiler to produce the same output regardless of | |||
406 | // working directory, so use the uncanonicalized relative path. | |||
407 | // | |||
408 | // It's important to make the mangled names unique because, when CodeView | |||
409 | // debug info is in use, the debugger uses mangled type names to distinguish | |||
410 | // between otherwise identically named types in anonymous namespaces. | |||
411 | // | |||
412 | // These symbols are always internal, so there is no need for the hash to | |||
413 | // match what MSVC produces. For the same reason, clang is free to change the | |||
414 | // hash at any time without breaking compatibility with old versions of clang. | |||
415 | // The generated names are intended to look similar to what MSVC generates, | |||
416 | // which are something like "?A0x01234567@". | |||
417 | SourceManager &SM = Context.getSourceManager(); | |||
418 | if (const FileEntry *FE = SM.getFileEntryForID(SM.getMainFileID())) { | |||
419 | // Truncate the hash so we get 8 characters of hexadecimal. | |||
420 | uint32_t TruncatedHash = uint32_t(xxHash64(FE->getName())); | |||
421 | AnonymousNamespaceHash = llvm::utohexstr(TruncatedHash); | |||
422 | } else { | |||
423 | // If we don't have a path to the main file, we'll just use 0. | |||
424 | AnonymousNamespaceHash = "0"; | |||
425 | } | |||
426 | } | |||
427 | ||||
428 | bool MicrosoftMangleContextImpl::shouldMangleCXXName(const NamedDecl *D) { | |||
429 | if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) { | |||
430 | LanguageLinkage L = FD->getLanguageLinkage(); | |||
431 | // Overloadable functions need mangling. | |||
432 | if (FD->hasAttr<OverloadableAttr>()) | |||
433 | return true; | |||
434 | ||||
435 | // The ABI expects that we would never mangle "typical" user-defined entry | |||
436 | // points regardless of visibility or freestanding-ness. | |||
437 | // | |||
438 | // N.B. This is distinct from asking about "main". "main" has a lot of | |||
439 | // special rules associated with it in the standard while these | |||
440 | // user-defined entry points are outside of the purview of the standard. | |||
441 | // For example, there can be only one definition for "main" in a standards | |||
442 | // compliant program; however nothing forbids the existence of wmain and | |||
443 | // WinMain in the same translation unit. | |||
444 | if (FD->isMSVCRTEntryPoint()) | |||
445 | return false; | |||
446 | ||||
447 | // C++ functions and those whose names are not a simple identifier need | |||
448 | // mangling. | |||
449 | if (!FD->getDeclName().isIdentifier() || L == CXXLanguageLinkage) | |||
450 | return true; | |||
451 | ||||
452 | // C functions are not mangled. | |||
453 | if (L == CLanguageLinkage) | |||
454 | return false; | |||
455 | } | |||
456 | ||||
457 | // Otherwise, no mangling is done outside C++ mode. | |||
458 | if (!getASTContext().getLangOpts().CPlusPlus) | |||
459 | return false; | |||
460 | ||||
461 | const VarDecl *VD = dyn_cast<VarDecl>(D); | |||
462 | if (VD && !isa<DecompositionDecl>(D)) { | |||
463 | // C variables are not mangled. | |||
464 | if (VD->isExternC()) | |||
465 | return false; | |||
466 | ||||
467 | // Variables at global scope with non-internal linkage are not mangled. | |||
468 | const DeclContext *DC = getEffectiveDeclContext(D); | |||
469 | // Check for extern variable declared locally. | |||
470 | if (DC->isFunctionOrMethod() && D->hasLinkage()) | |||
471 | while (!DC->isNamespace() && !DC->isTranslationUnit()) | |||
472 | DC = getEffectiveParentContext(DC); | |||
473 | ||||
474 | if (DC->isTranslationUnit() && D->getFormalLinkage() == InternalLinkage && | |||
475 | !isa<VarTemplateSpecializationDecl>(D) && | |||
476 | D->getIdentifier() != nullptr) | |||
477 | return false; | |||
478 | } | |||
479 | ||||
480 | return true; | |||
481 | } | |||
482 | ||||
483 | bool | |||
484 | MicrosoftMangleContextImpl::shouldMangleStringLiteral(const StringLiteral *SL) { | |||
485 | return true; | |||
486 | } | |||
487 | ||||
488 | void MicrosoftCXXNameMangler::mangle(const NamedDecl *D, StringRef Prefix) { | |||
489 | // MSVC doesn't mangle C++ names the same way it mangles extern "C" names. | |||
490 | // Therefore it's really important that we don't decorate the | |||
491 | // name with leading underscores or leading/trailing at signs. So, by | |||
492 | // default, we emit an asm marker at the start so we get the name right. | |||
493 | // Callers can override this with a custom prefix. | |||
494 | ||||
495 | // <mangled-name> ::= ? <name> <type-encoding> | |||
496 | Out << Prefix; | |||
497 | mangleName(D); | |||
498 | if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) | |||
499 | mangleFunctionEncoding(FD, Context.shouldMangleDeclName(FD)); | |||
500 | else if (const VarDecl *VD = dyn_cast<VarDecl>(D)) | |||
501 | mangleVariableEncoding(VD); | |||
502 | else | |||
503 | llvm_unreachable("Tried to mangle unexpected NamedDecl!")::llvm::llvm_unreachable_internal("Tried to mangle unexpected NamedDecl!" , "/build/llvm-toolchain-snapshot-10~++20200110111110+a1cc19b5814/clang/lib/AST/MicrosoftMangle.cpp" , 503); | |||
504 | } | |||
505 | ||||
506 | void MicrosoftCXXNameMangler::mangleFunctionEncoding(const FunctionDecl *FD, | |||
507 | bool ShouldMangle) { | |||
508 | // <type-encoding> ::= <function-class> <function-type> | |||
509 | ||||
510 | // Since MSVC operates on the type as written and not the canonical type, it | |||
511 | // actually matters which decl we have here. MSVC appears to choose the | |||
512 | // first, since it is most likely to be the declaration in a header file. | |||
513 | FD = FD->getFirstDecl(); | |||
514 | ||||
515 | // We should never ever see a FunctionNoProtoType at this point. | |||
516 | // We don't even know how to mangle their types anyway :). | |||
517 | const FunctionProtoType *FT = FD->getType()->castAs<FunctionProtoType>(); | |||
518 | ||||
519 | // extern "C" functions can hold entities that must be mangled. | |||
520 | // As it stands, these functions still need to get expressed in the full | |||
521 | // external name. They have their class and type omitted, replaced with '9'. | |||
522 | if (ShouldMangle) { | |||
523 | // We would like to mangle all extern "C" functions using this additional | |||
524 | // component but this would break compatibility with MSVC's behavior. | |||
525 | // Instead, do this when we know that compatibility isn't important (in | |||
526 | // other words, when it is an overloaded extern "C" function). | |||
527 | if (FD->isExternC() && FD->hasAttr<OverloadableAttr>()) | |||
528 | Out << "$$J0"; | |||
529 | ||||
530 | mangleFunctionClass(FD); | |||
531 | ||||
532 | mangleFunctionType(FT, FD, false, false); | |||
533 | } else { | |||
534 | Out << '9'; | |||
535 | } | |||
536 | } | |||
537 | ||||
538 | void MicrosoftCXXNameMangler::mangleVariableEncoding(const VarDecl *VD) { | |||
539 | // <type-encoding> ::= <storage-class> <variable-type> | |||
540 | // <storage-class> ::= 0 # private static member | |||
541 | // ::= 1 # protected static member | |||
542 | // ::= 2 # public static member | |||
543 | // ::= 3 # global | |||
544 | // ::= 4 # static local | |||
545 | ||||
546 | // The first character in the encoding (after the name) is the storage class. | |||
547 | if (VD->isStaticDataMember()) { | |||
548 | // If it's a static member, it also encodes the access level. | |||
549 | switch (VD->getAccess()) { | |||
550 | default: | |||
551 | case AS_private: Out << '0'; break; | |||
552 | case AS_protected: Out << '1'; break; | |||
553 | case AS_public: Out << '2'; break; | |||
554 | } | |||
555 | } | |||
556 | else if (!VD->isStaticLocal()) | |||
557 | Out << '3'; | |||
558 | else | |||
559 | Out << '4'; | |||
560 | // Now mangle the type. | |||
561 | // <variable-type> ::= <type> <cvr-qualifiers> | |||
562 | // ::= <type> <pointee-cvr-qualifiers> # pointers, references | |||
563 | // Pointers and references are odd. The type of 'int * const foo;' gets | |||
564 | // mangled as 'QAHA' instead of 'PAHB', for example. | |||
565 | SourceRange SR = VD->getSourceRange(); | |||
566 | QualType Ty = VD->getType(); | |||
567 | if (Ty->isPointerType() || Ty->isReferenceType() || | |||
568 | Ty->isMemberPointerType()) { | |||
569 | mangleType(Ty, SR, QMM_Drop); | |||
570 | manglePointerExtQualifiers( | |||
571 | Ty.getDesugaredType(getASTContext()).getLocalQualifiers(), QualType()); | |||
572 | if (const MemberPointerType *MPT = Ty->getAs<MemberPointerType>()) { | |||
573 | mangleQualifiers(MPT->getPointeeType().getQualifiers(), true); | |||
574 | // Member pointers are suffixed with a back reference to the member | |||
575 | // pointer's class name. | |||
576 | mangleName(MPT->getClass()->getAsCXXRecordDecl()); | |||
577 | } else | |||
578 | mangleQualifiers(Ty->getPointeeType().getQualifiers(), false); | |||
579 | } else if (const ArrayType *AT = getASTContext().getAsArrayType(Ty)) { | |||
580 | // Global arrays are funny, too. | |||
581 | mangleDecayedArrayType(AT); | |||
582 | if (AT->getElementType()->isArrayType()) | |||
583 | Out << 'A'; | |||
584 | else | |||
585 | mangleQualifiers(Ty.getQualifiers(), false); | |||
586 | } else { | |||
587 | mangleType(Ty, SR, QMM_Drop); | |||
588 | mangleQualifiers(Ty.getQualifiers(), false); | |||
589 | } | |||
590 | } | |||
591 | ||||
592 | void MicrosoftCXXNameMangler::mangleMemberDataPointer(const CXXRecordDecl *RD, | |||
593 | const ValueDecl *VD) { | |||
594 | // <member-data-pointer> ::= <integer-literal> | |||
595 | // ::= $F <number> <number> | |||
596 | // ::= $G <number> <number> <number> | |||
597 | ||||
598 | int64_t FieldOffset; | |||
599 | int64_t VBTableOffset; | |||
600 | MSInheritanceModel IM = RD->getMSInheritanceModel(); | |||
601 | if (VD) { | |||
602 | FieldOffset = getASTContext().getFieldOffset(VD); | |||
603 | 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~++20200110111110+a1cc19b5814/clang/lib/AST/MicrosoftMangle.cpp" , 604, __PRETTY_FUNCTION__)) | |||
604 | "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~++20200110111110+a1cc19b5814/clang/lib/AST/MicrosoftMangle.cpp" , 604, __PRETTY_FUNCTION__)); | |||
605 | FieldOffset /= getASTContext().getCharWidth(); | |||
606 | ||||
607 | VBTableOffset = 0; | |||
608 | ||||
609 | if (IM == MSInheritanceModel::Virtual) | |||
610 | FieldOffset -= getASTContext().getOffsetOfBaseWithVBPtr(RD).getQuantity(); | |||
611 | } else { | |||
612 | FieldOffset = RD->nullFieldOffsetIsZero() ? 0 : -1; | |||
613 | ||||
614 | VBTableOffset = -1; | |||
615 | } | |||
616 | ||||
617 | char Code = '\0'; | |||
618 | switch (IM) { | |||
619 | case MSInheritanceModel::Single: Code = '0'; break; | |||
620 | case MSInheritanceModel::Multiple: Code = '0'; break; | |||
621 | case MSInheritanceModel::Virtual: Code = 'F'; break; | |||
622 | case MSInheritanceModel::Unspecified: Code = 'G'; break; | |||
623 | } | |||
624 | ||||
625 | Out << '$' << Code; | |||
626 | ||||
627 | mangleNumber(FieldOffset); | |||
628 | ||||
629 | // The C++ standard doesn't allow base-to-derived member pointer conversions | |||
630 | // in template parameter contexts, so the vbptr offset of data member pointers | |||
631 | // is always zero. | |||
632 | if (inheritanceModelHasVBPtrOffsetField(IM)) | |||
633 | mangleNumber(0); | |||
634 | if (inheritanceModelHasVBTableOffsetField(IM)) | |||
635 | mangleNumber(VBTableOffset); | |||
636 | } | |||
637 | ||||
638 | void | |||
639 | MicrosoftCXXNameMangler::mangleMemberFunctionPointer(const CXXRecordDecl *RD, | |||
640 | const CXXMethodDecl *MD) { | |||
641 | // <member-function-pointer> ::= $1? <name> | |||
642 | // ::= $H? <name> <number> | |||
643 | // ::= $I? <name> <number> <number> | |||
644 | // ::= $J? <name> <number> <number> <number> | |||
645 | ||||
646 | MSInheritanceModel IM = RD->getMSInheritanceModel(); | |||
647 | ||||
648 | char Code = '\0'; | |||
649 | switch (IM) { | |||
650 | case MSInheritanceModel::Single: Code = '1'; break; | |||
651 | case MSInheritanceModel::Multiple: Code = 'H'; break; | |||
652 | case MSInheritanceModel::Virtual: Code = 'I'; break; | |||
653 | case MSInheritanceModel::Unspecified: Code = 'J'; break; | |||
654 | } | |||
655 | ||||
656 | // If non-virtual, mangle the name. If virtual, mangle as a virtual memptr | |||
657 | // thunk. | |||
658 | uint64_t NVOffset = 0; | |||
659 | uint64_t VBTableOffset = 0; | |||
660 | uint64_t VBPtrOffset = 0; | |||
661 | if (MD) { | |||
662 | Out << '$' << Code << '?'; | |||
663 | if (MD->isVirtual()) { | |||
664 | MicrosoftVTableContext *VTContext = | |||
665 | cast<MicrosoftVTableContext>(getASTContext().getVTableContext()); | |||
666 | MethodVFTableLocation ML = | |||
667 | VTContext->getMethodVFTableLocation(GlobalDecl(MD)); | |||
668 | mangleVirtualMemPtrThunk(MD, ML); | |||
669 | NVOffset = ML.VFPtrOffset.getQuantity(); | |||
670 | VBTableOffset = ML.VBTableIndex * 4; | |||
671 | if (ML.VBase) { | |||
672 | const ASTRecordLayout &Layout = getASTContext().getASTRecordLayout(RD); | |||
673 | VBPtrOffset = Layout.getVBPtrOffset().getQuantity(); | |||
674 | } | |||
675 | } else { | |||
676 | mangleName(MD); | |||
677 | mangleFunctionEncoding(MD, /*ShouldMangle=*/true); | |||
678 | } | |||
679 | ||||
680 | if (VBTableOffset == 0 && IM == MSInheritanceModel::Virtual) | |||
681 | NVOffset -= getASTContext().getOffsetOfBaseWithVBPtr(RD).getQuantity(); | |||
682 | } else { | |||
683 | // Null single inheritance member functions are encoded as a simple nullptr. | |||
684 | if (IM == MSInheritanceModel::Single) { | |||
685 | Out << "$0A@"; | |||
686 | return; | |||
687 | } | |||
688 | if (IM == MSInheritanceModel::Unspecified) | |||
689 | VBTableOffset = -1; | |||
690 | Out << '$' << Code; | |||
691 | } | |||
692 | ||||
693 | if (inheritanceModelHasNVOffsetField(/*IsMemberFunction=*/true, IM)) | |||
694 | mangleNumber(static_cast<uint32_t>(NVOffset)); | |||
695 | if (inheritanceModelHasVBPtrOffsetField(IM)) | |||
696 | mangleNumber(VBPtrOffset); | |||
697 | if (inheritanceModelHasVBTableOffsetField(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~++20200110111110+a1cc19b5814/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~++20200110111110+a1cc19b5814/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~++20200110111110+a1cc19b5814/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~++20200110111110+a1cc19b5814/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~++20200110111110+a1cc19b5814/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~++20200110111110+a1cc19b5814/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~++20200110111110+a1cc19b5814/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~++20200110111110+a1cc19b5814/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~++20200110111110+a1cc19b5814/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~++20200110111110+a1cc19b5814/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~++20200110111110+a1cc19b5814/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~++20200110111110+a1cc19b5814/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~++20200110111110+a1cc19b5814/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~++20200110111110+a1cc19b5814/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~++20200110111110+a1cc19b5814/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 | : "$$$V"); | |||
1525 | else if (isa<NonTypeTemplateParmDecl>(Parm)) | |||
1526 | Out << "$S"; | |||
1527 | else | |||
1528 | llvm_unreachable("unexpected template parameter decl!")::llvm::llvm_unreachable_internal("unexpected template parameter decl!" , "/build/llvm-toolchain-snapshot-10~++20200110111110+a1cc19b5814/clang/lib/AST/MicrosoftMangle.cpp" , 1528); | |||
1529 | } else { | |||
1530 | for (const TemplateArgument &PA : TemplateArgs) | |||
1531 | mangleTemplateArg(TD, PA, Parm); | |||
1532 | } | |||
1533 | break; | |||
1534 | } | |||
1535 | case TemplateArgument::Template: { | |||
1536 | const NamedDecl *ND = | |||
1537 | TA.getAsTemplate().getAsTemplateDecl()->getTemplatedDecl(); | |||
1538 | if (const auto *TD = dyn_cast<TagDecl>(ND)) { | |||
1539 | mangleType(TD); | |||
1540 | } else if (isa<TypeAliasDecl>(ND)) { | |||
1541 | Out << "$$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~++20200110111110+a1cc19b5814/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 | // Check if this is a default 64-bit pointer or has __ptr64 qualifier. | |||
1712 | bool is64Bit = PointeeType.isNull() ? PointersAre64Bit : | |||
1713 | is64BitPointer(PointeeType.getQualifiers()); | |||
1714 | if (is64Bit && (PointeeType.isNull() || !PointeeType->isFunctionType())) | |||
1715 | Out << 'E'; | |||
1716 | ||||
1717 | if (Quals.hasRestrict()) | |||
1718 | Out << 'I'; | |||
1719 | ||||
1720 | if (Quals.hasUnaligned() || | |||
1721 | (!PointeeType.isNull() && PointeeType.getLocalQualifiers().hasUnaligned())) | |||
1722 | Out << 'F'; | |||
1723 | } | |||
1724 | ||||
1725 | void MicrosoftCXXNameMangler::manglePointerCVQualifiers(Qualifiers Quals) { | |||
1726 | // <pointer-cv-qualifiers> ::= P # no qualifiers | |||
1727 | // ::= Q # const | |||
1728 | // ::= R # volatile | |||
1729 | // ::= S # const volatile | |||
1730 | bool HasConst = Quals.hasConst(), | |||
1731 | HasVolatile = Quals.hasVolatile(); | |||
1732 | ||||
1733 | if (HasConst && HasVolatile) { | |||
1734 | Out << 'S'; | |||
1735 | } else if (HasVolatile) { | |||
1736 | Out << 'R'; | |||
1737 | } else if (HasConst) { | |||
1738 | Out << 'Q'; | |||
1739 | } else { | |||
1740 | Out << 'P'; | |||
1741 | } | |||
1742 | } | |||
1743 | ||||
1744 | void MicrosoftCXXNameMangler::mangleFunctionArgumentType(QualType T, | |||
1745 | SourceRange Range) { | |||
1746 | // MSVC will backreference two canonically equivalent types that have slightly | |||
1747 | // different manglings when mangled alone. | |||
1748 | ||||
1749 | // Decayed types do not match up with non-decayed versions of the same type. | |||
1750 | // | |||
1751 | // e.g. | |||
1752 | // void (*x)(void) will not form a backreference with void x(void) | |||
1753 | void *TypePtr; | |||
1754 | if (const auto *DT = T->getAs<DecayedType>()) { | |||
1755 | QualType OriginalType = DT->getOriginalType(); | |||
1756 | // All decayed ArrayTypes should be treated identically; as-if they were | |||
1757 | // a decayed IncompleteArrayType. | |||
1758 | if (const auto *AT = getASTContext().getAsArrayType(OriginalType)) | |||
1759 | OriginalType = getASTContext().getIncompleteArrayType( | |||
1760 | AT->getElementType(), AT->getSizeModifier(), | |||
1761 | AT->getIndexTypeCVRQualifiers()); | |||
1762 | ||||
1763 | TypePtr = OriginalType.getCanonicalType().getAsOpaquePtr(); | |||
1764 | // If the original parameter was textually written as an array, | |||
1765 | // instead treat the decayed parameter like it's const. | |||
1766 | // | |||
1767 | // e.g. | |||
1768 | // int [] -> int * const | |||
1769 | if (OriginalType->isArrayType()) | |||
1770 | T = T.withConst(); | |||
1771 | } else { | |||
1772 | TypePtr = T.getCanonicalType().getAsOpaquePtr(); | |||
1773 | } | |||
1774 | ||||
1775 | ArgBackRefMap::iterator Found = FunArgBackReferences.find(TypePtr); | |||
1776 | ||||
1777 | if (Found == FunArgBackReferences.end()) { | |||
1778 | size_t OutSizeBefore = Out.tell(); | |||
1779 | ||||
1780 | mangleType(T, Range, QMM_Drop); | |||
1781 | ||||
1782 | // See if it's worth creating a back reference. | |||
1783 | // Only types longer than 1 character are considered | |||
1784 | // and only 10 back references slots are available: | |||
1785 | bool LongerThanOneChar = (Out.tell() - OutSizeBefore > 1); | |||
1786 | if (LongerThanOneChar && FunArgBackReferences.size() < 10) { | |||
1787 | size_t Size = FunArgBackReferences.size(); | |||
1788 | FunArgBackReferences[TypePtr] = Size; | |||
1789 | } | |||
1790 | } else { | |||
1791 | Out << Found->second; | |||
1792 | } | |||
1793 | } | |||
1794 | ||||
1795 | void MicrosoftCXXNameMangler::manglePassObjectSizeArg( | |||
1796 | const PassObjectSizeAttr *POSA) { | |||
1797 | int Type = POSA->getType(); | |||
1798 | bool Dynamic = POSA->isDynamic(); | |||
1799 | ||||
1800 | auto Iter = PassObjectSizeArgs.insert({Type, Dynamic}).first; | |||
1801 | auto *TypePtr = (const void *)&*Iter; | |||
1802 | ArgBackRefMap::iterator Found = FunArgBackReferences.find(TypePtr); | |||
1803 | ||||
1804 | if (Found == FunArgBackReferences.end()) { | |||
1805 | std::string Name = | |||
1806 | Dynamic ? "__pass_dynamic_object_size" : "__pass_object_size"; | |||
1807 | mangleArtificialTagType(TTK_Enum, Name + llvm::utostr(Type), {"__clang"}); | |||
1808 | ||||
1809 | if (FunArgBackReferences.size() < 10) { | |||
1810 | size_t Size = FunArgBackReferences.size(); | |||
1811 | FunArgBackReferences[TypePtr] = Size; | |||
1812 | } | |||
1813 | } else { | |||
1814 | Out << Found->second; | |||
1815 | } | |||
1816 | } | |||
1817 | ||||
1818 | void MicrosoftCXXNameMangler::mangleAddressSpaceType(QualType T, | |||
1819 | Qualifiers Quals, | |||
1820 | SourceRange Range) { | |||
1821 | // Address space is mangled as an unqualified templated type in the __clang | |||
1822 | // namespace. The demangled version of this is: | |||
1823 | // In the case of a language specific address space: | |||
1824 | // __clang::struct _AS[language_addr_space]<Type> | |||
1825 | // where: | |||
1826 | // <language_addr_space> ::= <OpenCL-addrspace> | <CUDA-addrspace> | |||
1827 | // <OpenCL-addrspace> ::= "CL" [ "global" | "local" | "constant" | | |||
1828 | // "private"| "generic" ] | |||
1829 | // <CUDA-addrspace> ::= "CU" [ "device" | "constant" | "shared" ] | |||
1830 | // Note that the above were chosen to match the Itanium mangling for this. | |||
1831 | // | |||
1832 | // In the case of a non-language specific address space: | |||
1833 | // __clang::struct _AS<TargetAS, Type> | |||
1834 | 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~++20200110111110+a1cc19b5814/clang/lib/AST/MicrosoftMangle.cpp" , 1834, __PRETTY_FUNCTION__)); | |||
1835 | llvm::SmallString<32> ASMangling; | |||
1836 | llvm::raw_svector_ostream Stream(ASMangling); | |||
1837 | MicrosoftCXXNameMangler Extra(Context, Stream); | |||
1838 | Stream << "?$"; | |||
1839 | ||||
1840 | LangAS AS = Quals.getAddressSpace(); | |||
1841 | if (Context.getASTContext().addressSpaceMapManglingFor(AS)) { | |||
1842 | unsigned TargetAS = Context.getASTContext().getTargetAddressSpace(AS); | |||
1843 | Extra.mangleSourceName("_AS"); | |||
1844 | Extra.mangleIntegerLiteral(llvm::APSInt::getUnsigned(TargetAS), | |||
1845 | /*IsBoolean*/ false); | |||
1846 | } else { | |||
1847 | switch (AS) { | |||
1848 | default: | |||
1849 | llvm_unreachable("Not a language specific address space")::llvm::llvm_unreachable_internal("Not a language specific address space" , "/build/llvm-toolchain-snapshot-10~++20200110111110+a1cc19b5814/clang/lib/AST/MicrosoftMangle.cpp" , 1849); | |||
1850 | case LangAS::opencl_global: | |||
1851 | Extra.mangleSourceName("_ASCLglobal"); | |||
1852 | break; | |||
1853 | case LangAS::opencl_local: | |||
1854 | Extra.mangleSourceName("_ASCLlocal"); | |||
1855 | break; | |||
1856 | case LangAS::opencl_constant: | |||
1857 | Extra.mangleSourceName("_ASCLconstant"); | |||
1858 | break; | |||
1859 | case LangAS::opencl_private: | |||
1860 | Extra.mangleSourceName("_ASCLprivate"); | |||
1861 | break; | |||
1862 | case LangAS::opencl_generic: | |||
1863 | Extra.mangleSourceName("_ASCLgeneric"); | |||
1864 | break; | |||
1865 | case LangAS::cuda_device: | |||
1866 | Extra.mangleSourceName("_ASCUdevice"); | |||
1867 | break; | |||
1868 | case LangAS::cuda_constant: | |||
1869 | Extra.mangleSourceName("_ASCUconstant"); | |||
1870 | break; | |||
1871 | case LangAS::cuda_shared: | |||
1872 | Extra.mangleSourceName("_ASCUshared"); | |||
1873 | break; | |||
1874 | case LangAS::ptr32_sptr: | |||
1875 | case LangAS::ptr32_uptr: | |||
1876 | case LangAS::ptr64: | |||
1877 | llvm_unreachable("don't mangle ptr address spaces with _AS")::llvm::llvm_unreachable_internal("don't mangle ptr address spaces with _AS" , "/build/llvm-toolchain-snapshot-10~++20200110111110+a1cc19b5814/clang/lib/AST/MicrosoftMangle.cpp" , 1877); | |||
1878 | } | |||
1879 | } | |||
1880 | ||||
1881 | Extra.mangleType(T, Range, QMM_Escape); | |||
1882 | mangleQualifiers(Qualifiers(), false); | |||
1883 | mangleArtificialTagType(TTK_Struct, ASMangling, {"__clang"}); | |||
1884 | } | |||
1885 | ||||
1886 | void MicrosoftCXXNameMangler::mangleType(QualType T, SourceRange Range, | |||
1887 | QualifierMangleMode QMM) { | |||
1888 | // Don't use the canonical types. MSVC includes things like 'const' on | |||
1889 | // pointer arguments to function pointers that canonicalization strips away. | |||
1890 | T = T.getDesugaredType(getASTContext()); | |||
1891 | Qualifiers Quals = T.getLocalQualifiers(); | |||
1892 | ||||
1893 | if (const ArrayType *AT = getASTContext().getAsArrayType(T)) { | |||
1894 | // If there were any Quals, getAsArrayType() pushed them onto the array | |||
1895 | // element type. | |||
1896 | if (QMM == QMM_Mangle) | |||
1897 | Out << 'A'; | |||
1898 | else if (QMM == QMM_Escape || QMM == QMM_Result) | |||
1899 | Out << "$$B"; | |||
1900 | mangleArrayType(AT); | |||
1901 | return; | |||
1902 | } | |||
1903 | ||||
1904 | bool IsPointer = T->isAnyPointerType() || T->isMemberPointerType() || | |||
1905 | T->isReferenceType() || T->isBlockPointerType(); | |||
1906 | ||||
1907 | switch (QMM) { | |||
1908 | case QMM_Drop: | |||
1909 | if (Quals.hasObjCLifetime()) | |||
1910 | Quals = Quals.withoutObjCLifetime(); | |||
1911 | break; | |||
1912 | case QMM_Mangle: | |||
1913 | if (const FunctionType *FT = dyn_cast<FunctionType>(T)) { | |||
1914 | Out << '6'; | |||
1915 | mangleFunctionType(FT); | |||
1916 | return; | |||
1917 | } | |||
1918 | mangleQualifiers(Quals, false); | |||
1919 | break; | |||
1920 | case QMM_Escape: | |||
1921 | if (!IsPointer && Quals) { | |||
1922 | Out << "$$C"; | |||
1923 | mangleQualifiers(Quals, false); | |||
1924 | } | |||
1925 | break; | |||
1926 | case QMM_Result: | |||
1927 | // Presence of __unaligned qualifier shouldn't affect mangling here. | |||
1928 | Quals.removeUnaligned(); | |||
1929 | if (Quals.hasObjCLifetime()) | |||
1930 | Quals = Quals.withoutObjCLifetime(); | |||
1931 | if ((!IsPointer && Quals) || isa<TagType>(T) || isArtificialTagType(T)) { | |||
1932 | Out << '?'; | |||
1933 | mangleQualifiers(Quals, false); | |||
1934 | } | |||
1935 | break; | |||
1936 | } | |||
1937 | ||||
1938 | const Type *ty = T.getTypePtr(); | |||
1939 | ||||
1940 | switch (ty->getTypeClass()) { | |||
1941 | #define ABSTRACT_TYPE(CLASS, PARENT) | |||
1942 | #define NON_CANONICAL_TYPE(CLASS, PARENT) \ | |||
1943 | case Type::CLASS: \ | |||
1944 | 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~++20200110111110+a1cc19b5814/clang/lib/AST/MicrosoftMangle.cpp" , 1944); \ | |||
1945 | return; | |||
1946 | #define TYPE(CLASS, PARENT) \ | |||
1947 | case Type::CLASS: \ | |||
1948 | mangleType(cast<CLASS##Type>(ty), Quals, Range); \ | |||
1949 | break; | |||
1950 | #include "clang/AST/TypeNodes.inc" | |||
1951 | #undef ABSTRACT_TYPE | |||
1952 | #undef NON_CANONICAL_TYPE | |||
1953 | #undef TYPE | |||
1954 | } | |||
1955 | } | |||
1956 | ||||
1957 | void MicrosoftCXXNameMangler::mangleType(const BuiltinType *T, Qualifiers, | |||
1958 | SourceRange Range) { | |||
1959 | // <type> ::= <builtin-type> | |||
1960 | // <builtin-type> ::= X # void | |||
1961 | // ::= C # signed char | |||
1962 | // ::= D # char | |||
1963 | // ::= E # unsigned char | |||
1964 | // ::= F # short | |||
1965 | // ::= G # unsigned short (or wchar_t if it's not a builtin) | |||
1966 | // ::= H # int | |||
1967 | // ::= I # unsigned int | |||
1968 | // ::= J # long | |||
1969 | // ::= K # unsigned long | |||
1970 | // L # <none> | |||
1971 | // ::= M # float | |||
1972 | // ::= N # double | |||
1973 | // ::= O # long double (__float80 is mangled differently) | |||
1974 | // ::= _J # long long, __int64 | |||
1975 | // ::= _K # unsigned long long, __int64 | |||
1976 | // ::= _L # __int128 | |||
1977 | // ::= _M # unsigned __int128 | |||
1978 | // ::= _N # bool | |||
1979 | // _O # <array in parameter> | |||
1980 | // ::= _Q # char8_t | |||
1981 | // ::= _S # char16_t | |||
1982 | // ::= _T # __float80 (Intel) | |||
1983 | // ::= _U # char32_t | |||
1984 | // ::= _W # wchar_t | |||
1985 | // ::= _Z # __float80 (Digital Mars) | |||
1986 | switch (T->getKind()) { | |||
1987 | case BuiltinType::Void: | |||
1988 | Out << 'X'; | |||
1989 | break; | |||
1990 | case BuiltinType::SChar: | |||
1991 | Out << 'C'; | |||
1992 | break; | |||
1993 | case BuiltinType::Char_U: | |||
1994 | case BuiltinType::Char_S: | |||
1995 | Out << 'D'; | |||
1996 | break; | |||
1997 | case BuiltinType::UChar: | |||
1998 | Out << 'E'; | |||
1999 | break; | |||
2000 | case BuiltinType::Short: | |||
2001 | Out << 'F'; | |||
2002 | break; | |||
2003 | case BuiltinType::UShort: | |||
2004 | Out << 'G'; | |||
2005 | break; | |||
2006 | case BuiltinType::Int: | |||
2007 | Out << 'H'; | |||
2008 | break; | |||
2009 | case BuiltinType::UInt: | |||
2010 | Out << 'I'; | |||
2011 | break; | |||
2012 | case BuiltinType::Long: | |||
2013 | Out << 'J'; | |||
2014 | break; | |||
2015 | case BuiltinType::ULong: | |||
2016 | Out << 'K'; | |||
2017 | break; | |||
2018 | case BuiltinType::Float: | |||
2019 | Out << 'M'; | |||
2020 | break; | |||
2021 | case BuiltinType::Double: | |||
2022 | Out << 'N'; | |||
2023 | break; | |||
2024 | // TODO: Determine size and mangle accordingly | |||
2025 | case BuiltinType::LongDouble: | |||
2026 | Out << 'O'; | |||
2027 | break; | |||
2028 | case BuiltinType::LongLong: | |||
2029 | Out << "_J"; | |||
2030 | break; | |||
2031 | case BuiltinType::ULongLong: | |||
2032 | Out << "_K"; | |||
2033 | break; | |||
2034 | case BuiltinType::Int128: | |||
2035 | Out << "_L"; | |||
2036 | break; | |||
2037 | case BuiltinType::UInt128: | |||
2038 | Out << "_M"; | |||
2039 | break; | |||
2040 | case BuiltinType::Bool: | |||
2041 | Out << "_N"; | |||
2042 | break; | |||
2043 | case BuiltinType::Char8: | |||
2044 | Out << "_Q"; | |||
2045 | break; | |||
2046 | case BuiltinType::Char16: | |||
2047 | Out << "_S"; | |||
2048 | break; | |||
2049 | case BuiltinType::Char32: | |||
2050 | Out << "_U"; | |||
2051 | break; | |||
2052 | case BuiltinType::WChar_S: | |||
2053 | case BuiltinType::WChar_U: | |||
2054 | Out << "_W"; | |||
2055 | break; | |||
2056 | ||||
2057 | #define BUILTIN_TYPE(Id, SingletonId) | |||
2058 | #define PLACEHOLDER_TYPE(Id, SingletonId) \ | |||
2059 | case BuiltinType::Id: | |||
2060 | #include "clang/AST/BuiltinTypes.def" | |||
2061 | case BuiltinType::Dependent: | |||
2062 | 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~++20200110111110+a1cc19b5814/clang/lib/AST/MicrosoftMangle.cpp" , 2062); | |||
2063 | ||||
2064 | case BuiltinType::ObjCId: | |||
2065 | mangleArtificialTagType(TTK_Struct, "objc_object"); | |||
2066 | break; | |||
2067 | case BuiltinType::ObjCClass: | |||
2068 | mangleArtificialTagType(TTK_Struct, "objc_class"); | |||
2069 | break; | |||
2070 | case BuiltinType::ObjCSel: | |||
2071 | mangleArtificialTagType(TTK_Struct, "objc_selector"); | |||
2072 | break; | |||
2073 | ||||
2074 | #define IMAGE_TYPE(ImgType, Id, SingletonId, Access, Suffix) \ | |||
2075 | case BuiltinType::Id: \ | |||
2076 | Out << "PAUocl_" #ImgType "_" #Suffix "@@"; \ | |||
2077 | break; | |||
2078 | #include "clang/Basic/OpenCLImageTypes.def" | |||
2079 | case BuiltinType::OCLSampler: | |||
2080 | Out << "PA"; | |||
2081 | mangleArtificialTagType(TTK_Struct, "ocl_sampler"); | |||
2082 | break; | |||
2083 | case BuiltinType::OCLEvent: | |||
2084 | Out << "PA"; | |||
2085 | mangleArtificialTagType(TTK_Struct, "ocl_event"); | |||
2086 | break; | |||
2087 | case BuiltinType::OCLClkEvent: | |||
2088 | Out << "PA"; | |||
2089 | mangleArtificialTagType(TTK_Struct, "ocl_clkevent"); | |||
2090 | break; | |||
2091 | case BuiltinType::OCLQueue: | |||
2092 | Out << "PA"; | |||
2093 | mangleArtificialTagType(TTK_Struct, "ocl_queue"); | |||
2094 | break; | |||
2095 | case BuiltinType::OCLReserveID: | |||
2096 | Out << "PA"; | |||
2097 | mangleArtificialTagType(TTK_Struct, "ocl_reserveid"); | |||
2098 | break; | |||
2099 | #define EXT_OPAQUE_TYPE(ExtType, Id, Ext) \ | |||
2100 | case BuiltinType::Id: \ | |||
2101 | mangleArtificialTagType(TTK_Struct, "ocl_" #ExtType); \ | |||
2102 | break; | |||
2103 | #include "clang/Basic/OpenCLExtensionTypes.def" | |||
2104 | ||||
2105 | case BuiltinType::NullPtr: | |||
2106 | Out << "$$T"; | |||
2107 | break; | |||
2108 | ||||
2109 | case BuiltinType::Float16: | |||
2110 | mangleArtificialTagType(TTK_Struct, "_Float16", {"__clang"}); | |||
2111 | break; | |||
2112 | ||||
2113 | case BuiltinType::Half: | |||
2114 | mangleArtificialTagType(TTK_Struct, "_Half", {"__clang"}); | |||
2115 | break; | |||
2116 | ||||
2117 | #define SVE_TYPE(Name, Id, SingletonId) \ | |||
2118 | case BuiltinType::Id: | |||
2119 | #include "clang/Basic/AArch64SVEACLETypes.def" | |||
2120 | case BuiltinType::ShortAccum: | |||
2121 | case BuiltinType::Accum: | |||
2122 | case BuiltinType::LongAccum: | |||
2123 | case BuiltinType::UShortAccum: | |||
2124 | case BuiltinType::UAccum: | |||
2125 | case BuiltinType::ULongAccum: | |||
2126 | case BuiltinType::ShortFract: | |||
2127 | case BuiltinType::Fract: | |||
2128 | case BuiltinType::LongFract: | |||
2129 | case BuiltinType::UShortFract: | |||
2130 | case BuiltinType::UFract: | |||
2131 | case BuiltinType::ULongFract: | |||
2132 | case BuiltinType::SatShortAccum: | |||
2133 | case BuiltinType::SatAccum: | |||
2134 | case BuiltinType::SatLongAccum: | |||
2135 | case BuiltinType::SatUShortAccum: | |||
2136 | case BuiltinType::SatUAccum: | |||
2137 | case BuiltinType::SatULongAccum: | |||
2138 | case BuiltinType::SatShortFract: | |||
2139 | case BuiltinType::SatFract: | |||
2140 | case BuiltinType::SatLongFract: | |||
2141 | case BuiltinType::SatUShortFract: | |||
2142 | case BuiltinType::SatUFract: | |||
2143 | case BuiltinType::SatULongFract: | |||
2144 | case BuiltinType::Float128: { | |||
2145 | DiagnosticsEngine &Diags = Context.getDiags(); | |||
2146 | unsigned DiagID = Diags.getCustomDiagID( | |||
2147 | DiagnosticsEngine::Error, "cannot mangle this built-in %0 type yet"); | |||
2148 | Diags.Report(Range.getBegin(), DiagID) | |||
2149 | << T->getName(Context.getASTContext().getPrintingPolicy()) << Range; | |||
2150 | break; | |||
2151 | } | |||
2152 | } | |||
2153 | } | |||
2154 | ||||
2155 | // <type> ::= <function-type> | |||
2156 | void MicrosoftCXXNameMangler::mangleType(const FunctionProtoType *T, Qualifiers, | |||
2157 | SourceRange) { | |||
2158 | // Structors only appear in decls, so at this point we know it's not a | |||
2159 | // structor type. | |||
2160 | // FIXME: This may not be lambda-friendly. | |||
2161 | if (T->getMethodQuals() || T->getRefQualifier() != RQ_None) { | |||
2162 | Out << "$$A8@@"; | |||
2163 | mangleFunctionType(T, /*D=*/nullptr, /*ForceThisQuals=*/true); | |||
2164 | } else { | |||
2165 | Out << "$$A6"; | |||
2166 | mangleFunctionType(T); | |||
2167 | } | |||
2168 | } | |||
2169 | void MicrosoftCXXNameMangler::mangleType(const FunctionNoProtoType *T, | |||
2170 | Qualifiers, SourceRange) { | |||
2171 | Out << "$$A6"; | |||
2172 | mangleFunctionType(T); | |||
2173 | } | |||
2174 | ||||
2175 | void MicrosoftCXXNameMangler::mangleFunctionType(const FunctionType *T, | |||
2176 | const FunctionDecl *D, | |||
2177 | bool ForceThisQuals, | |||
2178 | bool MangleExceptionSpec) { | |||
2179 | // <function-type> ::= <this-cvr-qualifiers> <calling-convention> | |||
2180 | // <return-type> <argument-list> <throw-spec> | |||
2181 | const FunctionProtoType *Proto = dyn_cast<FunctionProtoType>(T); | |||
2182 | ||||
2183 | SourceRange Range; | |||
2184 | if (D) Range = D->getSourceRange(); | |||
2185 | ||||
2186 | bool IsInLambda = false; | |||
2187 | bool IsStructor = false, HasThisQuals = ForceThisQuals, IsCtorClosure = false; | |||
2188 | CallingConv CC = T->getCallConv(); | |||
2189 | if (const CXXMethodDecl *MD = dyn_cast_or_null<CXXMethodDecl>(D)) { | |||
2190 | if (MD->getParent()->isLambda()) | |||
2191 | IsInLambda = true; | |||
2192 | if (MD->isInstance()) | |||
2193 | HasThisQuals = true; | |||
2194 | if (isa<CXXDestructorDecl>(MD)) { | |||
2195 | IsStructor = true; | |||
2196 | } else if (isa<CXXConstructorDecl>(MD)) { | |||
2197 | IsStructor = true; | |||
2198 | IsCtorClosure = (StructorType == Ctor_CopyingClosure || | |||
2199 | StructorType == Ctor_DefaultClosure) && | |||
2200 | isStructorDecl(MD); | |||
2201 | if (IsCtorClosure) | |||
2202 | CC = getASTContext().getDefaultCallingConvention( | |||
2203 | /*IsVariadic=*/false, /*IsCXXMethod=*/true); | |||
2204 | } | |||
2205 | } | |||
2206 | ||||
2207 | // If this is a C++ instance method, mangle the CVR qualifiers for the | |||
2208 | // this pointer. | |||
2209 | if (HasThisQuals) { | |||
2210 | Qualifiers Quals = Proto->getMethodQuals(); | |||
2211 | manglePointerExtQualifiers(Quals, /*PointeeType=*/QualType()); | |||
2212 | mangleRefQualifier(Proto->getRefQualifier()); | |||
2213 | mangleQualifiers(Quals, /*IsMember=*/false); | |||
2214 | } | |||
2215 | ||||
2216 | mangleCallingConvention(CC); | |||
2217 | ||||
2218 | // <return-type> ::= <type> | |||
2219 | // ::= @ # structors (they have no declared return type) | |||
2220 | if (IsStructor) { | |||
2221 | if (isa<CXXDestructorDecl>(D) && isStructorDecl(D)) { | |||
2222 | // The scalar deleting destructor takes an extra int argument which is not | |||
2223 | // reflected in the AST. | |||
2224 | if (StructorType == Dtor_Deleting) { | |||
2225 | Out << (PointersAre64Bit ? "PEAXI@Z" : "PAXI@Z"); | |||
2226 | return; | |||
2227 | } | |||
2228 | // The vbase destructor returns void which is not reflected in the AST. | |||
2229 | if (StructorType == Dtor_Complete) { | |||
2230 | Out << "XXZ"; | |||
2231 | return; | |||
2232 | } | |||
2233 | } | |||
2234 | if (IsCtorClosure) { | |||
2235 | // Default constructor closure and copy constructor closure both return | |||
2236 | // void. | |||
2237 | Out << 'X'; | |||
2238 | ||||
2239 | if (StructorType == Ctor_DefaultClosure) { | |||
2240 | // Default constructor closure always has no arguments. | |||
2241 | Out << 'X'; | |||
2242 | } else if (StructorType == Ctor_CopyingClosure) { | |||
2243 | // Copy constructor closure always takes an unqualified reference. | |||
2244 | mangleFunctionArgumentType(getASTContext().getLValueReferenceType( | |||
2245 | Proto->getParamType(0) | |||
2246 | ->getAs<LValueReferenceType>() | |||
2247 | ->getPointeeType(), | |||
2248 | /*SpelledAsLValue=*/true), | |||
2249 | Range); | |||
2250 | Out << '@'; | |||
2251 | } else { | |||
2252 | llvm_unreachable("unexpected constructor closure!")::llvm::llvm_unreachable_internal("unexpected constructor closure!" , "/build/llvm-toolchain-snapshot-10~++20200110111110+a1cc19b5814/clang/lib/AST/MicrosoftMangle.cpp" , 2252); | |||
2253 | } | |||
2254 | Out << 'Z'; | |||
2255 | return; | |||
2256 | } | |||
2257 | Out << '@'; | |||
2258 | } else { | |||
2259 | QualType ResultType = T->getReturnType(); | |||
2260 | if (const auto *AT = | |||
2261 | dyn_cast_or_null<AutoType>(ResultType->getContainedAutoType())) { | |||
2262 | Out << '?'; | |||
2263 | mangleQualifiers(ResultType.getLocalQualifiers(), /*IsMember=*/false); | |||
2264 | Out << '?'; | |||
2265 | 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~++20200110111110+a1cc19b5814/clang/lib/AST/MicrosoftMangle.cpp" , 2266, __PRETTY_FUNCTION__)) | |||
2266 | "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~++20200110111110+a1cc19b5814/clang/lib/AST/MicrosoftMangle.cpp" , 2266, __PRETTY_FUNCTION__)); | |||
2267 | mangleSourceName(AT->isDecltypeAuto() ? "<decltype-auto>" : "<auto>"); | |||
2268 | Out << '@'; | |||
2269 | } else if (IsInLambda) { | |||
2270 | Out << '@'; | |||
2271 | } else { | |||
2272 | if (ResultType->isVoidType()) | |||
2273 | ResultType = ResultType.getUnqualifiedType(); | |||
2274 | mangleType(ResultType, Range, QMM_Result); | |||
2275 | } | |||
2276 | } | |||
2277 | ||||
2278 | // <argument-list> ::= X # void | |||
2279 | // ::= <type>+ @ | |||
2280 | // ::= <type>* Z # varargs | |||
2281 | if (!Proto) { | |||
2282 | // Function types without prototypes can arise when mangling a function type | |||
2283 | // within an overloadable function in C. We mangle these as the absence of | |||
2284 | // any parameter types (not even an empty parameter list). | |||
2285 | Out << '@'; | |||
2286 | } else if (Proto->getNumParams() == 0 && !Proto->isVariadic()) { | |||
2287 | Out << 'X'; | |||
2288 | } else { | |||
2289 | // Happens for function pointer type arguments for example. | |||
2290 | for (unsigned I = 0, E = Proto->getNumParams(); I != E; ++I) { | |||
2291 | mangleFunctionArgumentType(Proto->getParamType(I), Range); | |||
2292 | // Mangle each pass_object_size parameter as if it's a parameter of enum | |||
2293 | // type passed directly after the parameter with the pass_object_size | |||
2294 | // attribute. The aforementioned enum's name is __pass_object_size, and we | |||
2295 | // pretend it resides in a top-level namespace called __clang. | |||
2296 | // | |||
2297 | // FIXME: Is there a defined extension notation for the MS ABI, or is it | |||
2298 | // necessary to just cross our fingers and hope this type+namespace | |||
2299 | // combination doesn't conflict with anything? | |||
2300 | if (D) | |||
2301 | if (const auto *P = D->getParamDecl(I)->getAttr<PassObjectSizeAttr>()) | |||
2302 | manglePassObjectSizeArg(P); | |||
2303 | } | |||
2304 | // <builtin-type> ::= Z # ellipsis | |||
2305 | if (Proto->isVariadic()) | |||
2306 | Out << 'Z'; | |||
2307 | else | |||
2308 | Out << '@'; | |||
2309 | } | |||
2310 | ||||
2311 | if (MangleExceptionSpec && getASTContext().getLangOpts().CPlusPlus17 && | |||
2312 | getASTContext().getLangOpts().isCompatibleWithMSVC( | |||
2313 | LangOptions::MSVC2017_5)) | |||
2314 | mangleThrowSpecification(Proto); | |||
2315 | else | |||
2316 | Out << 'Z'; | |||
2317 | } | |||
2318 | ||||
2319 | void MicrosoftCXXNameMangler::mangleFunctionClass(const FunctionDecl *FD) { | |||
2320 | // <function-class> ::= <member-function> E? # E designates a 64-bit 'this' | |||
2321 | // # pointer. in 64-bit mode *all* | |||
2322 | // # 'this' pointers are 64-bit. | |||
2323 | // ::= <global-function> | |||
2324 | // <member-function> ::= A # private: near | |||
2325 | // ::= B # private: far | |||
2326 | // ::= C # private: static near | |||
2327 | // ::= D # private: static far | |||
2328 | // ::= E # private: virtual near | |||
2329 | // ::= F # private: virtual far | |||
2330 | // ::= I # protected: near | |||
2331 | // ::= J # protected: far | |||
2332 | // ::= K # protected: static near | |||
2333 | // ::= L # protected: static far | |||
2334 | // ::= M # protected: virtual near | |||
2335 | // ::= N # protected: virtual far | |||
2336 | // ::= Q # public: near | |||
2337 | // ::= R # public: far | |||
2338 | // ::= S # public: static near | |||
2339 | // ::= T # public: static far | |||
2340 | // ::= U # public: virtual near | |||
2341 | // ::= V # public: virtual far | |||
2342 | // <global-function> ::= Y # global near | |||
2343 | // ::= Z # global far | |||
2344 | if (const CXXMethodDecl *MD = dyn_cast<CXXMethodDecl>(FD)) { | |||
2345 | bool IsVirtual = MD->isVirtual(); | |||
2346 | // When mangling vbase destructor variants, ignore whether or not the | |||
2347 | // underlying destructor was defined to be virtual. | |||
2348 | if (isa<CXXDestructorDecl>(MD) && isStructorDecl(MD) && | |||
2349 | StructorType == Dtor_Complete) { | |||
2350 | IsVirtual = false; | |||
2351 | } | |||
2352 | switch (MD->getAccess()) { | |||
2353 | case AS_none: | |||
2354 | llvm_unreachable("Unsupported access specifier")::llvm::llvm_unreachable_internal("Unsupported access specifier" , "/build/llvm-toolchain-snapshot-10~++20200110111110+a1cc19b5814/clang/lib/AST/MicrosoftMangle.cpp" , 2354); | |||
2355 | case AS_private: | |||
2356 | if (MD->isStatic()) | |||
2357 | Out << 'C'; | |||
2358 | else if (IsVirtual) | |||
2359 | Out << 'E'; | |||
2360 | else | |||
2361 | Out << 'A'; | |||
2362 | break; | |||
2363 | case AS_protected: | |||
2364 | if (MD->isStatic()) | |||
2365 | Out << 'K'; | |||
2366 | else if (IsVirtual) | |||
2367 | Out << 'M'; | |||
2368 | else | |||
2369 | Out << 'I'; | |||
2370 | break; | |||
2371 | case AS_public: | |||
2372 | if (MD->isStatic()) | |||
2373 | Out << 'S'; | |||
2374 | else if (IsVirtual) | |||
2375 | Out << 'U'; | |||
2376 | else | |||
2377 | Out << 'Q'; | |||
2378 | } | |||
2379 | } else { | |||
2380 | Out << 'Y'; | |||
2381 | } | |||
2382 | } | |||
2383 | void MicrosoftCXXNameMangler::mangleCallingConvention(CallingConv CC) { | |||
2384 | // <calling-convention> ::= A # __cdecl | |||
2385 | // ::= B # __export __cdecl | |||
2386 | // ::= C # __pascal | |||
2387 | // ::= D # __export __pascal | |||
2388 | // ::= E # __thiscall | |||
2389 | // ::= F # __export __thiscall | |||
2390 | // ::= G # __stdcall | |||
2391 | // ::= H # __export __stdcall | |||
2392 | // ::= I # __fastcall | |||
2393 | // ::= J # __export __fastcall | |||
2394 | // ::= Q # __vectorcall | |||
2395 | // ::= w # __regcall | |||
2396 | // The 'export' calling conventions are from a bygone era | |||
2397 | // (*cough*Win16*cough*) when functions were declared for export with | |||
2398 | // that keyword. (It didn't actually export them, it just made them so | |||
2399 | // that they could be in a DLL and somebody from another module could call | |||
2400 | // them.) | |||
2401 | ||||
2402 | switch (CC) { | |||
2403 | default: | |||
2404 | llvm_unreachable("Unsupported CC for mangling")::llvm::llvm_unreachable_internal("Unsupported CC for mangling" , "/build/llvm-toolchain-snapshot-10~++20200110111110+a1cc19b5814/clang/lib/AST/MicrosoftMangle.cpp" , 2404); | |||
2405 | case CC_Win64: | |||
2406 | case CC_X86_64SysV: | |||
2407 | case CC_C: Out << 'A'; break; | |||
2408 | case CC_X86Pascal: Out << 'C'; break; | |||
2409 | case CC_X86ThisCall: Out << 'E'; break; | |||
2410 | case CC_X86StdCall: Out << 'G'; break; | |||
2411 | case CC_X86FastCall: Out << 'I'; break; | |||
2412 | case CC_X86VectorCall: Out << 'Q'; break; | |||
2413 | case CC_Swift: Out << 'S'; break; | |||
2414 | case CC_PreserveMost: Out << 'U'; break; | |||
2415 | case CC_X86RegCall: Out << 'w'; break; | |||
2416 | } | |||
2417 | } | |||
2418 | void MicrosoftCXXNameMangler::mangleCallingConvention(const FunctionType *T) { | |||
2419 | mangleCallingConvention(T->getCallConv()); | |||
| ||||
2420 | } | |||
2421 | ||||
2422 | void MicrosoftCXXNameMangler::mangleThrowSpecification( | |||
2423 | const FunctionProtoType *FT) { | |||
2424 | // <throw-spec> ::= Z # (default) | |||
2425 | // ::= _E # noexcept | |||
2426 | if (FT->canThrow()) | |||
2427 | Out << 'Z'; | |||
2428 | else | |||
2429 | Out << "_E"; | |||
2430 | } | |||
2431 | ||||
2432 | void MicrosoftCXXNameMangler::mangleType(const UnresolvedUsingType *T, | |||
2433 | Qualifiers, SourceRange Range) { | |||
2434 | // Probably should be mangled as a template instantiation; need to see what | |||
2435 | // VC does first. | |||
2436 | DiagnosticsEngine &Diags = Context.getDiags(); | |||
2437 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, | |||
2438 | "cannot mangle this unresolved dependent type yet"); | |||
2439 | Diags.Report(Range.getBegin(), DiagID) | |||
2440 | << Range; | |||
2441 | } | |||
2442 | ||||
2443 | // <type> ::= <union-type> | <struct-type> | <class-type> | <enum-type> | |||
2444 | // <union-type> ::= T <name> | |||
2445 | // <struct-type> ::= U <name> | |||
2446 | // <class-type> ::= V <name> | |||
2447 | // <enum-type> ::= W4 <name> | |||
2448 | void MicrosoftCXXNameMangler::mangleTagTypeKind(TagTypeKind TTK) { | |||
2449 | switch (TTK) { | |||
2450 | case TTK_Union: | |||
2451 | Out << 'T'; | |||
2452 | break; | |||
2453 | case TTK_Struct: | |||
2454 | case TTK_Interface: | |||
2455 | Out << 'U'; | |||
2456 | break; | |||
2457 | case TTK_Class: | |||
2458 | Out << 'V'; | |||
2459 | break; | |||
2460 | case TTK_Enum: | |||
2461 | Out << "W4"; | |||
2462 | break; | |||
2463 | } | |||
2464 | } | |||
2465 | void MicrosoftCXXNameMangler::mangleType(const EnumType *T, Qualifiers, | |||
2466 | SourceRange) { | |||
2467 | mangleType(cast<TagType>(T)->getDecl()); | |||
2468 | } | |||
2469 | void MicrosoftCXXNameMangler::mangleType(const RecordType *T, Qualifiers, | |||
2470 | SourceRange) { | |||
2471 | mangleType(cast<TagType>(T)->getDecl()); | |||
2472 | } | |||
2473 | void MicrosoftCXXNameMangler::mangleType(const TagDecl *TD) { | |||
2474 | mangleTagTypeKind(TD->getTagKind()); | |||
2475 | mangleName(TD); | |||
2476 | } | |||
2477 | ||||
2478 | // If you add a call to this, consider updating isArtificialTagType() too. | |||
2479 | void MicrosoftCXXNameMangler::mangleArtificialTagType( | |||
2480 | TagTypeKind TK, StringRef UnqualifiedName, | |||
2481 | ArrayRef<StringRef> NestedNames) { | |||
2482 | // <name> ::= <unscoped-name> {[<named-scope>]+ | [<nested-name>]}? @ | |||
2483 | mangleTagTypeKind(TK); | |||
2484 | ||||
2485 | // Always start with the unqualified name. | |||
2486 | mangleSourceName(UnqualifiedName); | |||
2487 | ||||
2488 | for (auto I = NestedNames.rbegin(), E = NestedNames.rend(); I != E; ++I) | |||
2489 | mangleSourceName(*I); | |||
2490 | ||||
2491 | // Terminate the whole name with an '@'. | |||
2492 | Out << '@'; | |||
2493 | } | |||
2494 | ||||
2495 | // <type> ::= <array-type> | |||
2496 | // <array-type> ::= <pointer-cvr-qualifiers> <cvr-qualifiers> | |||
2497 | // [Y <dimension-count> <dimension>+] | |||
2498 | // <element-type> # as global, E is never required | |||
2499 | // It's supposed to be the other way around, but for some strange reason, it | |||
2500 | // isn't. Today this behavior is retained for the sole purpose of backwards | |||
2501 | // compatibility. | |||
2502 | void MicrosoftCXXNameMangler::mangleDecayedArrayType(const ArrayType *T) { | |||
2503 | // This isn't a recursive mangling, so now we have to do it all in this | |||
2504 | // one call. | |||
2505 | manglePointerCVQualifiers(T->getElementType().getQualifiers()); | |||
2506 | mangleType(T->getElementType(), SourceRange()); | |||
2507 | } | |||
2508 | void MicrosoftCXXNameMangler::mangleType(const ConstantArrayType *T, Qualifiers, | |||
2509 | SourceRange) { | |||
2510 | llvm_unreachable("Should have been special cased")::llvm::llvm_unreachable_internal("Should have been special cased" , "/build/llvm-toolchain-snapshot-10~++20200110111110+a1cc19b5814/clang/lib/AST/MicrosoftMangle.cpp" , 2510); | |||
2511 | } | |||
2512 | void MicrosoftCXXNameMangler::mangleType(const VariableArrayType *T, Qualifiers, | |||
2513 | SourceRange) { | |||
2514 | llvm_unreachable("Should have been special cased")::llvm::llvm_unreachable_internal("Should have been special cased" , "/build/llvm-toolchain-snapshot-10~++20200110111110+a1cc19b5814/clang/lib/AST/MicrosoftMangle.cpp" , 2514); | |||
2515 | } | |||
2516 | void MicrosoftCXXNameMangler::mangleType(const DependentSizedArrayType *T, | |||
2517 | Qualifiers, SourceRange) { | |||
2518 | llvm_unreachable("Should have been special cased")::llvm::llvm_unreachable_internal("Should have been special cased" , "/build/llvm-toolchain-snapshot-10~++20200110111110+a1cc19b5814/clang/lib/AST/MicrosoftMangle.cpp" , 2518); | |||
2519 | } | |||
2520 | void MicrosoftCXXNameMangler::mangleType(const IncompleteArrayType *T, | |||
2521 | Qualifiers, SourceRange) { | |||
2522 | llvm_unreachable("Should have been special cased")::llvm::llvm_unreachable_internal("Should have been special cased" , "/build/llvm-toolchain-snapshot-10~++20200110111110+a1cc19b5814/clang/lib/AST/MicrosoftMangle.cpp" , 2522); | |||
2523 | } | |||
2524 | void MicrosoftCXXNameMangler::mangleArrayType(const ArrayType *T) { | |||
2525 | QualType ElementTy(T, 0); | |||
2526 | SmallVector<llvm::APInt, 3> Dimensions; | |||
2527 | for (;;) { | |||
2528 | if (ElementTy->isConstantArrayType()) { | |||
2529 | const ConstantArrayType *CAT = | |||
2530 | getASTContext().getAsConstantArrayType(ElementTy); | |||
2531 | Dimensions.push_back(CAT->getSize()); | |||
2532 | ElementTy = CAT->getElementType(); | |||
2533 | } else if (ElementTy->isIncompleteArrayType()) { | |||
2534 | const IncompleteArrayType *IAT = | |||
2535 | getASTContext().getAsIncompleteArrayType(ElementTy); | |||
2536 | Dimensions.push_back(llvm::APInt(32, 0)); | |||
2537 | ElementTy = IAT->getElementType(); | |||
2538 | } else if (ElementTy->isVariableArrayType()) { | |||
2539 | const VariableArrayType *VAT = | |||
2540 | getASTContext().getAsVariableArrayType(ElementTy); | |||
2541 | Dimensions.push_back(llvm::APInt(32, 0)); | |||
2542 | ElementTy = VAT->getElementType(); | |||
2543 | } else if (ElementTy->isDependentSizedArrayType()) { | |||
2544 | // The dependent expression has to be folded into a constant (TODO). | |||
2545 | const DependentSizedArrayType *DSAT = | |||
2546 | getASTContext().getAsDependentSizedArrayType(ElementTy); | |||
2547 | DiagnosticsEngine &Diags = Context.getDiags(); | |||
2548 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, | |||
2549 | "cannot mangle this dependent-length array yet"); | |||
2550 | Diags.Report(DSAT->getSizeExpr()->getExprLoc(), DiagID) | |||
2551 | << DSAT->getBracketsRange(); | |||
2552 | return; | |||
2553 | } else { | |||
2554 | break; | |||
2555 | } | |||
2556 | } | |||
2557 | Out << 'Y'; | |||
2558 | // <dimension-count> ::= <number> # number of extra dimensions | |||
2559 | mangleNumber(Dimensions.size()); | |||
2560 | for (const llvm::APInt &Dimension : Dimensions) | |||
2561 | mangleNumber(Dimension.getLimitedValue()); | |||
2562 | mangleType(ElementTy, SourceRange(), QMM_Escape); | |||
2563 | } | |||
2564 | ||||
2565 | // <type> ::= <pointer-to-member-type> | |||
2566 | // <pointer-to-member-type> ::= <pointer-cvr-qualifiers> <cvr-qualifiers> | |||
2567 | // <class name> <type> | |||
2568 | void MicrosoftCXXNameMangler::mangleType(const MemberPointerType *T, | |||
2569 | Qualifiers Quals, SourceRange Range) { | |||
2570 | QualType PointeeType = T->getPointeeType(); | |||
2571 | manglePointerCVQualifiers(Quals); | |||
2572 | manglePointerExtQualifiers(Quals, PointeeType); | |||
2573 | if (const FunctionProtoType *FPT = PointeeType->getAs<FunctionProtoType>()) { | |||
2574 | Out << '8'; | |||
2575 | mangleName(T->getClass()->castAs<RecordType>()->getDecl()); | |||
2576 | mangleFunctionType(FPT, nullptr, true); | |||
2577 | } else { | |||
2578 | mangleQualifiers(PointeeType.getQualifiers(), true); | |||
2579 | mangleName(T->getClass()->castAs<RecordType>()->getDecl()); | |||
2580 | mangleType(PointeeType, Range, QMM_Drop); | |||
2581 | } | |||
2582 | } | |||
2583 | ||||
2584 | void MicrosoftCXXNameMangler::mangleType(const TemplateTypeParmType *T, | |||
2585 | Qualifiers, SourceRange Range) { | |||
2586 | DiagnosticsEngine &Diags = Context.getDiags(); | |||
2587 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, | |||
2588 | "cannot mangle this template type parameter type yet"); | |||
2589 | Diags.Report(Range.getBegin(), DiagID) | |||
2590 | << Range; | |||
2591 | } | |||
2592 | ||||
2593 | void MicrosoftCXXNameMangler::mangleType(const SubstTemplateTypeParmPackType *T, | |||
2594 | Qualifiers, SourceRange Range) { | |||
2595 | DiagnosticsEngine &Diags = Context.getDiags(); | |||
2596 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, | |||
2597 | "cannot mangle this substituted parameter pack yet"); | |||
2598 | Diags.Report(Range.getBegin(), DiagID) | |||
2599 | << Range; | |||
2600 | } | |||
2601 | ||||
2602 | // <type> ::= <pointer-type> | |||
2603 | // <pointer-type> ::= E? <pointer-cvr-qualifiers> <cvr-qualifiers> <type> | |||
2604 | // # the E is required for 64-bit non-static pointers | |||
2605 | void MicrosoftCXXNameMangler::mangleType(const PointerType *T, Qualifiers Quals, | |||
2606 | SourceRange Range) { | |||
2607 | QualType PointeeType = T->getPointeeType(); | |||
2608 | manglePointerCVQualifiers(Quals); | |||
2609 | manglePointerExtQualifiers(Quals, PointeeType); | |||
2610 | ||||
2611 | // For pointer size address spaces, go down the same type mangling path as | |||
2612 | // non address space types. | |||
2613 | LangAS AddrSpace = PointeeType.getQualifiers().getAddressSpace(); | |||
2614 | if (isPtrSizeAddressSpace(AddrSpace) || AddrSpace == LangAS::Default) | |||
2615 | mangleType(PointeeType, Range); | |||
2616 | else | |||
2617 | mangleAddressSpaceType(PointeeType, PointeeType.getQualifiers(), Range); | |||
2618 | } | |||
2619 | ||||
2620 | void MicrosoftCXXNameMangler::mangleType(const ObjCObjectPointerType *T, | |||
2621 | Qualifiers Quals, SourceRange Range) { | |||
2622 | QualType PointeeType = T->getPointeeType(); | |||
2623 | switch (Quals.getObjCLifetime()) { | |||
2624 | case Qualifiers::OCL_None: | |||
2625 | case Qualifiers::OCL_ExplicitNone: | |||
2626 | break; | |||
2627 | case Qualifiers::OCL_Autoreleasing: | |||
2628 | case Qualifiers::OCL_Strong: | |||
2629 | case Qualifiers::OCL_Weak: | |||
2630 | return mangleObjCLifetime(PointeeType, Quals, Range); | |||
2631 | } | |||
2632 | manglePointerCVQualifiers(Quals); | |||
2633 | manglePointerExtQualifiers(Quals, PointeeType); | |||
2634 | mangleType(PointeeType, Range); | |||
2635 | } | |||
2636 | ||||
2637 | // <type> ::= <reference-type> | |||
2638 | // <reference-type> ::= A E? <cvr-qualifiers> <type> | |||
2639 | // # the E is required for 64-bit non-static lvalue references | |||
2640 | void MicrosoftCXXNameMangler::mangleType(const LValueReferenceType *T, | |||
2641 | Qualifiers Quals, SourceRange Range) { | |||
2642 | QualType PointeeType = T->getPointeeType(); | |||
2643 | 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~++20200110111110+a1cc19b5814/clang/lib/AST/MicrosoftMangle.cpp" , 2643, __PRETTY_FUNCTION__)); | |||
2644 | Out << 'A'; | |||
2645 | manglePointerExtQualifiers(Quals, PointeeType); | |||
2646 | mangleType(PointeeType, Range); | |||
2647 | } | |||
2648 | ||||
2649 | // <type> ::= <r-value-reference-type> | |||
2650 | // <r-value-reference-type> ::= $$Q E? <cvr-qualifiers> <type> | |||
2651 | // # the E is required for 64-bit non-static rvalue references | |||
2652 | void MicrosoftCXXNameMangler::mangleType(const RValueReferenceType *T, | |||
2653 | Qualifiers Quals, SourceRange Range) { | |||
2654 | QualType PointeeType = T->getPointeeType(); | |||
2655 | assert(!Quals.hasConst() && !Quals.hasVolatile() && "unexpected qualifier!")((!Quals.hasConst() && !Quals.hasVolatile() && "unexpected qualifier!") ? static_cast<void> (0) : __assert_fail ("!Quals.hasConst() && !Quals.hasVolatile() && \"unexpected qualifier!\"" , "/build/llvm-toolchain-snapshot-10~++20200110111110+a1cc19b5814/clang/lib/AST/MicrosoftMangle.cpp" , 2655, __PRETTY_FUNCTION__)); | |||
2656 | Out << "$$Q"; | |||
2657 | manglePointerExtQualifiers(Quals, PointeeType); | |||
2658 | mangleType(PointeeType, Range); | |||
2659 | } | |||
2660 | ||||
2661 | void MicrosoftCXXNameMangler::mangleType(const ComplexType *T, Qualifiers, | |||
2662 | SourceRange Range) { | |||
2663 | QualType ElementType = T->getElementType(); | |||
2664 | ||||
2665 | llvm::SmallString<64> TemplateMangling; | |||
2666 | llvm::raw_svector_ostream Stream(TemplateMangling); | |||
2667 | MicrosoftCXXNameMangler Extra(Context, Stream); | |||
2668 | Stream << "?$"; | |||
2669 | Extra.mangleSourceName("_Complex"); | |||
2670 | Extra.mangleType(ElementType, Range, QMM_Escape); | |||
2671 | ||||
2672 | mangleArtificialTagType(TTK_Struct, TemplateMangling, {"__clang"}); | |||
2673 | } | |||
2674 | ||||
2675 | // Returns true for types that mangleArtificialTagType() gets called for with | |||
2676 | // TTK_Union, TTK_Struct, TTK_Class and where compatibility with MSVC's | |||
2677 | // mangling matters. | |||
2678 | // (It doesn't matter for Objective-C types and the like that cl.exe doesn't | |||
2679 | // support.) | |||
2680 | bool MicrosoftCXXNameMangler::isArtificialTagType(QualType T) const { | |||
2681 | const Type *ty = T.getTypePtr(); | |||
2682 | switch (ty->getTypeClass()) { | |||
2683 | default: | |||
2684 | return false; | |||
2685 | ||||
2686 | case Type::Vector: { | |||
2687 | // For ABI compatibility only __m64, __m128(id), and __m256(id) matter, | |||
2688 | // but since mangleType(VectorType*) always calls mangleArtificialTagType() | |||
2689 | // just always return true (the other vector types are clang-only). | |||
2690 | return true; | |||
2691 | } | |||
2692 | } | |||
2693 | } | |||
2694 | ||||
2695 | void MicrosoftCXXNameMangler::mangleType(const VectorType *T, Qualifiers Quals, | |||
2696 | SourceRange Range) { | |||
2697 | const BuiltinType *ET = T->getElementType()->getAs<BuiltinType>(); | |||
2698 | 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~++20200110111110+a1cc19b5814/clang/lib/AST/MicrosoftMangle.cpp" , 2698, __PRETTY_FUNCTION__)); | |||
2699 | uint64_t Width = getASTContext().getTypeSize(T); | |||
2700 | // Pattern match exactly the typedefs in our intrinsic headers. Anything that | |||
2701 | // doesn't match the Intel types uses a custom mangling below. | |||
2702 | size_t OutSizeBefore = Out.tell(); | |||
2703 | if (!isa<ExtVectorType>(T)) { | |||
2704 | if (getASTContext().getTargetInfo().getTriple().isX86()) { | |||
2705 | if (Width == 64 && ET->getKind() == BuiltinType::LongLong) { | |||
2706 | mangleArtificialTagType(TTK_Union, "__m64"); | |||
2707 | } else if (Width >= 128) { | |||
2708 | if (ET->getKind() == BuiltinType::Float) | |||
2709 | mangleArtificialTagType(TTK_Union, "__m" + llvm::utostr(Width)); | |||
2710 | else if (ET->getKind() == BuiltinType::LongLong) | |||
2711 | mangleArtificialTagType(TTK_Union, "__m" + llvm::utostr(Width) + 'i'); | |||
2712 | else if (ET->getKind() == BuiltinType::Double) | |||
2713 | mangleArtificialTagType(TTK_Struct, "__m" + llvm::utostr(Width) + 'd'); | |||
2714 | } | |||
2715 | } | |||
2716 | } | |||
2717 | ||||
2718 | bool IsBuiltin = Out.tell() != OutSizeBefore; | |||
2719 | if (!IsBuiltin) { | |||
2720 | // The MS ABI doesn't have a special mangling for vector types, so we define | |||
2721 | // our own mangling to handle uses of __vector_size__ on user-specified | |||
2722 | // types, and for extensions like __v4sf. | |||
2723 | ||||
2724 | llvm::SmallString<64> TemplateMangling; | |||
2725 | llvm::raw_svector_ostream Stream(TemplateMangling); | |||
2726 | MicrosoftCXXNameMangler Extra(Context, Stream); | |||
2727 | Stream << "?$"; | |||
2728 | Extra.mangleSourceName("__vector"); | |||
2729 | Extra.mangleType(QualType(ET, 0), Range, QMM_Escape); | |||
2730 | Extra.mangleIntegerLiteral(llvm::APSInt::getUnsigned(T->getNumElements()), | |||
2731 | /*IsBoolean=*/false); | |||
2732 | ||||
2733 | mangleArtificialTagType(TTK_Union, TemplateMangling, {"__clang"}); | |||
2734 | } | |||
2735 | } | |||
2736 | ||||
2737 | void MicrosoftCXXNameMangler::mangleType(const ExtVectorType *T, | |||
2738 | Qualifiers Quals, SourceRange Range) { | |||
2739 | mangleType(static_cast<const VectorType *>(T), Quals, Range); | |||
2740 | } | |||
2741 | ||||
2742 | void MicrosoftCXXNameMangler::mangleType(const DependentVectorType *T, | |||
2743 | Qualifiers, SourceRange Range) { | |||
2744 | DiagnosticsEngine &Diags = Context.getDiags(); | |||
2745 | unsigned DiagID = Diags.getCustomDiagID( | |||
2746 | DiagnosticsEngine::Error, | |||
2747 | "cannot mangle this dependent-sized vector type yet"); | |||
2748 | Diags.Report(Range.getBegin(), DiagID) << Range; | |||
2749 | } | |||
2750 | ||||
2751 | void MicrosoftCXXNameMangler::mangleType(const DependentSizedExtVectorType *T, | |||
2752 | Qualifiers, SourceRange Range) { | |||
2753 | DiagnosticsEngine &Diags = Context.getDiags(); | |||
2754 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, | |||
2755 | "cannot mangle this dependent-sized extended vector type yet"); | |||
2756 | Diags.Report(Range.getBegin(), DiagID) | |||
2757 | << Range; | |||
2758 | } | |||
2759 | ||||
2760 | void MicrosoftCXXNameMangler::mangleType(const DependentAddressSpaceType *T, | |||
2761 | Qualifiers, SourceRange Range) { | |||
2762 | DiagnosticsEngine &Diags = Context.getDiags(); | |||
2763 | unsigned DiagID = Diags.getCustomDiagID( | |||
2764 | DiagnosticsEngine::Error, | |||
2765 | "cannot mangle this dependent address space type yet"); | |||
2766 | Diags.Report(Range.getBegin(), DiagID) << Range; | |||
2767 | } | |||
2768 | ||||
2769 | void MicrosoftCXXNameMangler::mangleType(const ObjCInterfaceType *T, Qualifiers, | |||
2770 | SourceRange) { | |||
2771 | // ObjC interfaces have structs underlying them. | |||
2772 | mangleTagTypeKind(TTK_Struct); | |||
2773 | mangleName(T->getDecl()); | |||
2774 | } | |||
2775 | ||||
2776 | void MicrosoftCXXNameMangler::mangleType(const ObjCObjectType *T, | |||
2777 | Qualifiers Quals, SourceRange Range) { | |||
2778 | if (T->isKindOfType()) | |||
2779 | return mangleObjCKindOfType(T, Quals, Range); | |||
2780 | ||||
2781 | if (T->qual_empty() && !T->isSpecialized()) | |||
2782 | return mangleType(T->getBaseType(), Range, QMM_Drop); | |||
2783 | ||||
2784 | ArgBackRefMap OuterFunArgsContext; | |||
2785 | ArgBackRefMap OuterTemplateArgsContext; | |||
2786 | BackRefVec OuterTemplateContext; | |||
2787 | ||||
2788 | FunArgBackReferences.swap(OuterFunArgsContext); | |||
2789 | TemplateArgBackReferences.swap(OuterTemplateArgsContext); | |||
2790 | NameBackReferences.swap(OuterTemplateContext); | |||
2791 | ||||
2792 | mangleTagTypeKind(TTK_Struct); | |||
2793 | ||||
2794 | Out << "?$"; | |||
2795 | if (T->isObjCId()) | |||
2796 | mangleSourceName("objc_object"); | |||
2797 | else if (T->isObjCClass()) | |||
2798 | mangleSourceName("objc_class"); | |||
2799 | else | |||
2800 | mangleSourceName(T->getInterface()->getName()); | |||
2801 | ||||
2802 | for (const auto &Q : T->quals()) | |||
2803 | mangleObjCProtocol(Q); | |||
2804 | ||||
2805 | if (T->isSpecialized()) | |||
2806 | for (const auto &TA : T->getTypeArgs()) | |||
2807 | mangleType(TA, Range, QMM_Drop); | |||
2808 | ||||
2809 | Out << '@'; | |||
2810 | ||||
2811 | Out << '@'; | |||
2812 | ||||
2813 | FunArgBackReferences.swap(OuterFunArgsContext); | |||
2814 | TemplateArgBackReferences.swap(OuterTemplateArgsContext); | |||
2815 | NameBackReferences.swap(OuterTemplateContext); | |||
2816 | } | |||
2817 | ||||
2818 | void MicrosoftCXXNameMangler::mangleType(const BlockPointerType *T, | |||
2819 | Qualifiers Quals, SourceRange Range) { | |||
2820 | QualType PointeeType = T->getPointeeType(); | |||
2821 | manglePointerCVQualifiers(Quals); | |||
2822 | manglePointerExtQualifiers(Quals, PointeeType); | |||
2823 | ||||
2824 | Out << "_E"; | |||
2825 | ||||
2826 | mangleFunctionType(PointeeType->castAs<FunctionProtoType>()); | |||
2827 | } | |||
2828 | ||||
2829 | void MicrosoftCXXNameMangler::mangleType(const InjectedClassNameType *, | |||
2830 | Qualifiers, SourceRange) { | |||
2831 | llvm_unreachable("Cannot mangle injected class name type.")::llvm::llvm_unreachable_internal("Cannot mangle injected class name type." , "/build/llvm-toolchain-snapshot-10~++20200110111110+a1cc19b5814/clang/lib/AST/MicrosoftMangle.cpp" , 2831); | |||
2832 | } | |||
2833 | ||||
2834 | void MicrosoftCXXNameMangler::mangleType(const TemplateSpecializationType *T, | |||
2835 | Qualifiers, SourceRange Range) { | |||
2836 | DiagnosticsEngine &Diags = Context.getDiags(); | |||
2837 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, | |||
2838 | "cannot mangle this template specialization type yet"); | |||
2839 | Diags.Report(Range.getBegin(), DiagID) | |||
2840 | << Range; | |||
2841 | } | |||
2842 | ||||
2843 | void MicrosoftCXXNameMangler::mangleType(const DependentNameType *T, Qualifiers, | |||
2844 | SourceRange Range) { | |||
2845 | DiagnosticsEngine &Diags = Context.getDiags(); | |||
2846 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, | |||
2847 | "cannot mangle this dependent name type yet"); | |||
2848 | Diags.Report(Range.getBegin(), DiagID) | |||
2849 | << Range; | |||
2850 | } | |||
2851 | ||||
2852 | void MicrosoftCXXNameMangler::mangleType( | |||
2853 | const DependentTemplateSpecializationType *T, Qualifiers, | |||
2854 | SourceRange Range) { | |||
2855 | DiagnosticsEngine &Diags = Context.getDiags(); | |||
2856 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, | |||
2857 | "cannot mangle this dependent template specialization type yet"); | |||
2858 | Diags.Report(Range.getBegin(), DiagID) | |||
2859 | << Range; | |||
2860 | } | |||
2861 | ||||
2862 | void MicrosoftCXXNameMangler::mangleType(const PackExpansionType *T, Qualifiers, | |||
2863 | SourceRange Range) { | |||
2864 | DiagnosticsEngine &Diags = Context.getDiags(); | |||
2865 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, | |||
2866 | "cannot mangle this pack expansion yet"); | |||
2867 | Diags.Report(Range.getBegin(), DiagID) | |||
2868 | << Range; | |||
2869 | } | |||
2870 | ||||
2871 | void MicrosoftCXXNameMangler::mangleType(const TypeOfType *T, Qualifiers, | |||
2872 | SourceRange Range) { | |||
2873 | DiagnosticsEngine &Diags = Context.getDiags(); | |||
2874 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, | |||
2875 | "cannot mangle this typeof(type) yet"); | |||
2876 | Diags.Report(Range.getBegin(), DiagID) | |||
2877 | << Range; | |||
2878 | } | |||
2879 | ||||
2880 | void MicrosoftCXXNameMangler::mangleType(const TypeOfExprType *T, Qualifiers, | |||
2881 | SourceRange Range) { | |||
2882 | DiagnosticsEngine &Diags = Context.getDiags(); | |||
2883 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, | |||
2884 | "cannot mangle this typeof(expression) yet"); | |||
2885 | Diags.Report(Range.getBegin(), DiagID) | |||
2886 | << Range; | |||
2887 | } | |||
2888 | ||||
2889 | void MicrosoftCXXNameMangler::mangleType(const DecltypeType *T, Qualifiers, | |||
2890 | SourceRange Range) { | |||
2891 | DiagnosticsEngine &Diags = Context.getDiags(); | |||
2892 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, | |||
2893 | "cannot mangle this decltype() yet"); | |||
2894 | Diags.Report(Range.getBegin(), DiagID) | |||
2895 | << Range; | |||
2896 | } | |||
2897 | ||||
2898 | void MicrosoftCXXNameMangler::mangleType(const UnaryTransformType *T, | |||
2899 | Qualifiers, SourceRange Range) { | |||
2900 | DiagnosticsEngine &Diags = Context.getDiags(); | |||
2901 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, | |||
2902 | "cannot mangle this unary transform type yet"); | |||
2903 | Diags.Report(Range.getBegin(), DiagID) | |||
2904 | << Range; | |||
2905 | } | |||
2906 | ||||
2907 | void MicrosoftCXXNameMangler::mangleType(const AutoType *T, Qualifiers, | |||
2908 | SourceRange Range) { | |||
2909 | 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~++20200110111110+a1cc19b5814/clang/lib/AST/MicrosoftMangle.cpp" , 2909, __PRETTY_FUNCTION__)); | |||
2910 | ||||
2911 | DiagnosticsEngine &Diags = Context.getDiags(); | |||
2912 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, | |||
2913 | "cannot mangle this 'auto' type yet"); | |||
2914 | Diags.Report(Range.getBegin(), DiagID) | |||
2915 | << Range; | |||
2916 | } | |||
2917 | ||||
2918 | void MicrosoftCXXNameMangler::mangleType( | |||
2919 | const DeducedTemplateSpecializationType *T, Qualifiers, SourceRange Range) { | |||
2920 | 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~++20200110111110+a1cc19b5814/clang/lib/AST/MicrosoftMangle.cpp" , 2920, __PRETTY_FUNCTION__)); | |||
2921 | ||||
2922 | DiagnosticsEngine &Diags = Context.getDiags(); | |||
2923 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, | |||
2924 | "cannot mangle this deduced class template specialization type yet"); | |||
2925 | Diags.Report(Range.getBegin(), DiagID) | |||
2926 | << Range; | |||
2927 | } | |||
2928 | ||||
2929 | void MicrosoftCXXNameMangler::mangleType(const AtomicType *T, Qualifiers, | |||
2930 | SourceRange Range) { | |||
2931 | QualType ValueType = T->getValueType(); | |||
2932 | ||||
2933 | llvm::SmallString<64> TemplateMangling; | |||
2934 | llvm::raw_svector_ostream Stream(TemplateMangling); | |||
2935 | MicrosoftCXXNameMangler Extra(Context, Stream); | |||
2936 | Stream << "?$"; | |||
2937 | Extra.mangleSourceName("_Atomic"); | |||
2938 | Extra.mangleType(ValueType, Range, QMM_Escape); | |||
2939 | ||||
2940 | mangleArtificialTagType(TTK_Struct, TemplateMangling, {"__clang"}); | |||
2941 | } | |||
2942 | ||||
2943 | void MicrosoftCXXNameMangler::mangleType(const PipeType *T, Qualifiers, | |||
2944 | SourceRange Range) { | |||
2945 | DiagnosticsEngine &Diags = Context.getDiags(); | |||
2946 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, | |||
2947 | "cannot mangle this OpenCL pipe type yet"); | |||
2948 | Diags.Report(Range.getBegin(), DiagID) | |||
2949 | << Range; | |||
2950 | } | |||
2951 | ||||
2952 | void MicrosoftMangleContextImpl::mangleCXXName(const NamedDecl *D, | |||
2953 | raw_ostream &Out) { | |||
2954 | 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~++20200110111110+a1cc19b5814/clang/lib/AST/MicrosoftMangle.cpp" , 2955, __PRETTY_FUNCTION__)) | |||
2955 | "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~++20200110111110+a1cc19b5814/clang/lib/AST/MicrosoftMangle.cpp" , 2955, __PRETTY_FUNCTION__)); | |||
2956 | 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~++20200110111110+a1cc19b5814/clang/lib/AST/MicrosoftMangle.cpp" , 2957, __PRETTY_FUNCTION__)) | |||
2957 | "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~++20200110111110+a1cc19b5814/clang/lib/AST/MicrosoftMangle.cpp" , 2957, __PRETTY_FUNCTION__)); | |||
2958 | ||||
2959 | PrettyStackTraceDecl CrashInfo(D, SourceLocation(), | |||
2960 | getASTContext().getSourceManager(), | |||
2961 | "Mangling declaration"); | |||
2962 | ||||
2963 | msvc_hashing_ostream MHO(Out); | |||
2964 | MicrosoftCXXNameMangler Mangler(*this, MHO); | |||
2965 | return Mangler.mangle(D); | |||
2966 | } | |||
2967 | ||||
2968 | // <this-adjustment> ::= <no-adjustment> | <static-adjustment> | | |||
2969 | // <virtual-adjustment> | |||
2970 | // <no-adjustment> ::= A # private near | |||
2971 | // ::= B # private far | |||
2972 | // ::= I # protected near | |||
2973 | // ::= J # protected far | |||
2974 | // ::= Q # public near | |||
2975 | // ::= R # public far | |||
2976 | // <static-adjustment> ::= G <static-offset> # private near | |||
2977 | // ::= H <static-offset> # private far | |||
2978 | // ::= O <static-offset> # protected near | |||
2979 | // ::= P <static-offset> # protected far | |||
2980 | // ::= W <static-offset> # public near | |||
2981 | // ::= X <static-offset> # public far | |||
2982 | // <virtual-adjustment> ::= $0 <virtual-shift> <static-offset> # private near | |||
2983 | // ::= $1 <virtual-shift> <static-offset> # private far | |||
2984 | // ::= $2 <virtual-shift> <static-offset> # protected near | |||
2985 | // ::= $3 <virtual-shift> <static-offset> # protected far | |||
2986 | // ::= $4 <virtual-shift> <static-offset> # public near | |||
2987 | // ::= $5 <virtual-shift> <static-offset> # public far | |||
2988 | // <virtual-shift> ::= <vtordisp-shift> | <vtordispex-shift> | |||
2989 | // <vtordisp-shift> ::= <offset-to-vtordisp> | |||
2990 | // <vtordispex-shift> ::= <offset-to-vbptr> <vbase-offset-offset> | |||
2991 | // <offset-to-vtordisp> | |||
2992 | static void mangleThunkThisAdjustment(AccessSpecifier AS, | |||
2993 | const ThisAdjustment &Adjustment, | |||
2994 | MicrosoftCXXNameMangler &Mangler, | |||
2995 | raw_ostream &Out) { | |||
2996 | if (!Adjustment.Virtual.isEmpty()) { | |||
2997 | Out << '$'; | |||
2998 | char AccessSpec; | |||
2999 | switch (AS) { | |||
3000 | case AS_none: | |||
3001 | llvm_unreachable("Unsupported access specifier")::llvm::llvm_unreachable_internal("Unsupported access specifier" , "/build/llvm-toolchain-snapshot-10~++20200110111110+a1cc19b5814/clang/lib/AST/MicrosoftMangle.cpp" , 3001); | |||
3002 | case AS_private: | |||
3003 | AccessSpec = '0'; | |||
3004 | break; | |||
3005 | case AS_protected: | |||
3006 | AccessSpec = '2'; | |||
3007 | break; | |||
3008 | case AS_public: | |||
3009 | AccessSpec = '4'; | |||
3010 | } | |||
3011 | if (Adjustment.Virtual.Microsoft.VBPtrOffset) { | |||
3012 | Out << 'R' << AccessSpec; | |||
3013 | Mangler.mangleNumber( | |||
3014 | static_cast<uint32_t>(Adjustment.Virtual.Microsoft.VBPtrOffset)); | |||
3015 | Mangler.mangleNumber( | |||
3016 | static_cast<uint32_t>(Adjustment.Virtual.Microsoft.VBOffsetOffset)); | |||
3017 | Mangler.mangleNumber( | |||
3018 | static_cast<uint32_t>(Adjustment.Virtual.Microsoft.VtordispOffset)); | |||
3019 | Mangler.mangleNumber(static_cast<uint32_t>(Adjustment.NonVirtual)); | |||
3020 | } else { | |||
3021 | Out << AccessSpec; | |||
3022 | Mangler.mangleNumber( | |||
3023 | static_cast<uint32_t>(Adjustment.Virtual.Microsoft.VtordispOffset)); | |||
3024 | Mangler.mangleNumber(-static_cast<uint32_t>(Adjustment.NonVirtual)); | |||
3025 | } | |||
3026 | } else if (Adjustment.NonVirtual != 0) { | |||
3027 | switch (AS) { | |||
3028 | case AS_none: | |||
3029 | llvm_unreachable("Unsupported access specifier")::llvm::llvm_unreachable_internal("Unsupported access specifier" , "/build/llvm-toolchain-snapshot-10~++20200110111110+a1cc19b5814/clang/lib/AST/MicrosoftMangle.cpp" , 3029); | |||
3030 | case AS_private: | |||
3031 | Out << 'G'; | |||
3032 | break; | |||
3033 | case AS_protected: | |||
3034 | Out << 'O'; | |||
3035 | break; | |||
3036 | case AS_public: | |||
3037 | Out << 'W'; | |||
3038 | } | |||
3039 | Mangler.mangleNumber(-static_cast<uint32_t>(Adjustment.NonVirtual)); | |||
3040 | } else { | |||
3041 | switch (AS) { | |||
3042 | case AS_none: | |||
3043 | llvm_unreachable("Unsupported access specifier")::llvm::llvm_unreachable_internal("Unsupported access specifier" , "/build/llvm-toolchain-snapshot-10~++20200110111110+a1cc19b5814/clang/lib/AST/MicrosoftMangle.cpp" , 3043); | |||
3044 | case AS_private: | |||
3045 | Out << 'A'; | |||
3046 | break; | |||
3047 | case AS_protected: | |||
3048 | Out << 'I'; | |||
3049 | break; | |||
3050 | case AS_public: | |||
3051 | Out << 'Q'; | |||
3052 | } | |||
3053 | } | |||
3054 | } | |||
3055 | ||||
3056 | void MicrosoftMangleContextImpl::mangleVirtualMemPtrThunk( | |||
3057 | const CXXMethodDecl *MD, const MethodVFTableLocation &ML, | |||
3058 | raw_ostream &Out) { | |||
3059 | msvc_hashing_ostream MHO(Out); | |||
3060 | MicrosoftCXXNameMangler Mangler(*this, MHO); | |||
3061 | Mangler.getStream() << '?'; | |||
3062 | Mangler.mangleVirtualMemPtrThunk(MD, ML); | |||
| ||||
3063 | } | |||
3064 | ||||
3065 | void MicrosoftMangleContextImpl::mangleThunk(const CXXMethodDecl *MD, | |||
3066 | const ThunkInfo &Thunk, | |||
3067 | raw_ostream &Out) { | |||
3068 | msvc_hashing_ostream MHO(Out); | |||
3069 | MicrosoftCXXNameMangler Mangler(*this, MHO); | |||
3070 | Mangler.getStream() << '?'; | |||
3071 | Mangler.mangleName(MD); | |||
3072 | ||||
3073 | // Usually the thunk uses the access specifier of the new method, but if this | |||
3074 | // is a covariant return thunk, then MSVC always uses the public access | |||
3075 | // specifier, and we do the same. | |||
3076 | AccessSpecifier AS = Thunk.Return.isEmpty() ? MD->getAccess() : AS_public; | |||
3077 | mangleThunkThisAdjustment(AS, Thunk.This, Mangler, MHO); | |||
3078 | ||||
3079 | if (!Thunk.Return.isEmpty()) | |||
3080 | 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~++20200110111110+a1cc19b5814/clang/lib/AST/MicrosoftMangle.cpp" , 3081, __PRETTY_FUNCTION__)) | |||
3081 | "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~++20200110111110+a1cc19b5814/clang/lib/AST/MicrosoftMangle.cpp" , 3081, __PRETTY_FUNCTION__)); | |||
3082 | ||||
3083 | const CXXMethodDecl *DeclForFPT = Thunk.Method ? Thunk.Method : MD; | |||
3084 | Mangler.mangleFunctionType( | |||
3085 | DeclForFPT->getType()->castAs<FunctionProtoType>(), MD); | |||
3086 | } | |||
3087 | ||||
3088 | void MicrosoftMangleContextImpl::mangleCXXDtorThunk( | |||
3089 | const CXXDestructorDecl *DD, CXXDtorType Type, | |||
3090 | const ThisAdjustment &Adjustment, raw_ostream &Out) { | |||
3091 | // FIXME: Actually, the dtor thunk should be emitted for vector deleting | |||
3092 | // dtors rather than scalar deleting dtors. Just use the vector deleting dtor | |||
3093 | // mangling manually until we support both deleting dtor types. | |||
3094 | assert(Type == Dtor_Deleting)((Type == Dtor_Deleting) ? static_cast<void> (0) : __assert_fail ("Type == Dtor_Deleting", "/build/llvm-toolchain-snapshot-10~++20200110111110+a1cc19b5814/clang/lib/AST/MicrosoftMangle.cpp" , 3094, __PRETTY_FUNCTION__)); | |||
3095 | msvc_hashing_ostream MHO(Out); | |||
3096 | MicrosoftCXXNameMangler Mangler(*this, MHO, DD, Type); | |||
3097 | Mangler.getStream() << "??_E"; | |||
3098 | Mangler.mangleName(DD->getParent()); | |||
3099 | mangleThunkThisAdjustment(DD->getAccess(), Adjustment, Mangler, MHO); | |||
3100 | Mangler.mangleFunctionType(DD->getType()->castAs<FunctionProtoType>(), DD); | |||
3101 | } | |||
3102 | ||||
3103 | void MicrosoftMangleContextImpl::mangleCXXVFTable( | |||
3104 | const CXXRecordDecl *Derived, ArrayRef<const CXXRecordDecl *> BasePath, | |||
3105 | raw_ostream &Out) { | |||
3106 | // <mangled-name> ::= ?_7 <class-name> <storage-class> | |||
3107 | // <cvr-qualifiers> [<name>] @ | |||
3108 | // NOTE: <cvr-qualifiers> here is always 'B' (const). <storage-class> | |||
3109 | // is always '6' for vftables. | |||
3110 | msvc_hashing_ostream MHO(Out); | |||
3111 | MicrosoftCXXNameMangler Mangler(*this, MHO); | |||
3112 | if (Derived->hasAttr<DLLImportAttr>()) | |||
3113 | Mangler.getStream() << "??_S"; | |||
3114 | else | |||
3115 | Mangler.getStream() << "??_7"; | |||
3116 | Mangler.mangleName(Derived); | |||
3117 | Mangler.getStream() << "6B"; // '6' for vftable, 'B' for const. | |||
3118 | for (const CXXRecordDecl *RD : BasePath) | |||
3119 | Mangler.mangleName(RD); | |||
3120 | Mangler.getStream() << '@'; | |||
3121 | } | |||
3122 | ||||
3123 | void MicrosoftMangleContextImpl::mangleCXXVBTable( | |||
3124 | const CXXRecordDecl *Derived, ArrayRef<const CXXRecordDecl *> BasePath, | |||
3125 | raw_ostream &Out) { | |||
3126 | // <mangled-name> ::= ?_8 <class-name> <storage-class> | |||
3127 | // <cvr-qualifiers> [<name>] @ | |||
3128 | // NOTE: <cvr-qualifiers> here is always 'B' (const). <storage-class> | |||
3129 | // is always '7' for vbtables. | |||
3130 | msvc_hashing_ostream MHO(Out); | |||
3131 | MicrosoftCXXNameMangler Mangler(*this, MHO); | |||
3132 | Mangler.getStream() << "??_8"; | |||
3133 | Mangler.mangleName(Derived); | |||
3134 | Mangler.getStream() << "7B"; // '7' for vbtable, 'B' for const. | |||
3135 | for (const CXXRecordDecl *RD : BasePath) | |||
3136 | Mangler.mangleName(RD); | |||
3137 | Mangler.getStream() << '@'; | |||
3138 | } | |||
3139 | ||||
3140 | void MicrosoftMangleContextImpl::mangleCXXRTTI(QualType T, raw_ostream &Out) { | |||
3141 | msvc_hashing_ostream MHO(Out); | |||
3142 | MicrosoftCXXNameMangler Mangler(*this, MHO); | |||
3143 | Mangler.getStream() << "??_R0"; | |||
3144 | Mangler.mangleType(T, SourceRange(), MicrosoftCXXNameMangler::QMM_Result); | |||
3145 | Mangler.getStream() << "@8"; | |||
3146 | } | |||
3147 | ||||
3148 | void MicrosoftMangleContextImpl::mangleCXXRTTIName(QualType T, | |||
3149 | raw_ostream &Out) { | |||
3150 | MicrosoftCXXNameMangler Mangler(*this, Out); | |||
3151 | Mangler.getStream() << '.'; | |||
3152 | Mangler.mangleType(T, SourceRange(), MicrosoftCXXNameMangler::QMM_Result); | |||
3153 | } | |||
3154 | ||||
3155 | void MicrosoftMangleContextImpl::mangleCXXVirtualDisplacementMap( | |||
3156 | const CXXRecordDecl *SrcRD, const CXXRecordDecl *DstRD, raw_ostream &Out) { | |||
3157 | msvc_hashing_ostream MHO(Out); | |||
3158 | MicrosoftCXXNameMangler Mangler(*this, MHO); | |||
3159 | Mangler.getStream() << "??_K"; | |||
3160 | Mangler.mangleName(SrcRD); | |||
3161 | Mangler.getStream() << "$C"; | |||
3162 | Mangler.mangleName(DstRD); | |||
3163 | } | |||
3164 | ||||
3165 | void MicrosoftMangleContextImpl::mangleCXXThrowInfo(QualType T, bool IsConst, | |||
3166 | bool IsVolatile, | |||
3167 | bool IsUnaligned, | |||
3168 | uint32_t NumEntries, | |||
3169 | raw_ostream &Out) { | |||
3170 | msvc_hashing_ostream MHO(Out); | |||
3171 | MicrosoftCXXNameMangler Mangler(*this, MHO); | |||
3172 | Mangler.getStream() << "_TI"; | |||
3173 | if (IsConst) | |||
3174 | Mangler.getStream() << 'C'; | |||
3175 | if (IsVolatile) | |||
3176 | Mangler.getStream() << 'V'; | |||
3177 | if (IsUnaligned) | |||
3178 | Mangler.getStream() << 'U'; | |||
3179 | Mangler.getStream() << NumEntries; | |||
3180 | Mangler.mangleType(T, SourceRange(), MicrosoftCXXNameMangler::QMM_Result); | |||
3181 | } | |||
3182 | ||||
3183 | void MicrosoftMangleContextImpl::mangleCXXCatchableTypeArray( | |||
3184 | QualType T, uint32_t NumEntries, raw_ostream &Out) { | |||
3185 | msvc_hashing_ostream MHO(Out); | |||
3186 | MicrosoftCXXNameMangler Mangler(*this, MHO); | |||
3187 | Mangler.getStream() << "_CTA"; | |||
3188 | Mangler.getStream() << NumEntries; | |||
3189 | Mangler.mangleType(T, SourceRange(), MicrosoftCXXNameMangler::QMM_Result); | |||
3190 | } | |||
3191 | ||||
3192 | void MicrosoftMangleContextImpl::mangleCXXCatchableType( | |||
3193 | QualType T, const CXXConstructorDecl *CD, CXXCtorType CT, uint32_t Size, | |||
3194 | uint32_t NVOffset, int32_t VBPtrOffset, uint32_t VBIndex, | |||
3195 | raw_ostream &Out) { | |||
3196 | MicrosoftCXXNameMangler Mangler(*this, Out); | |||
3197 | Mangler.getStream() << "_CT"; | |||
3198 | ||||
3199 | llvm::SmallString<64> RTTIMangling; | |||
3200 | { | |||
3201 | llvm::raw_svector_ostream Stream(RTTIMangling); | |||
3202 | msvc_hashing_ostream MHO(Stream); | |||
3203 | mangleCXXRTTI(T, MHO); | |||
3204 | } | |||
3205 | Mangler.getStream() << RTTIMangling; | |||
3206 | ||||
3207 | // VS2015 and VS2017.1 omit the copy-constructor in the mangled name but | |||
3208 | // both older and newer versions include it. | |||
3209 | // FIXME: It is known that the Ctor is present in 2013, and in 2017.7 | |||
3210 | // (_MSC_VER 1914) and newer, and that it's omitted in 2015 and 2017.4 | |||
3211 | // (_MSC_VER 1911), but it's unknown when exactly it reappeared (1914? | |||
3212 | // Or 1912, 1913 aleady?). | |||
3213 | bool OmitCopyCtor = getASTContext().getLangOpts().isCompatibleWithMSVC( | |||
3214 | LangOptions::MSVC2015) && | |||
3215 | !getASTContext().getLangOpts().isCompatibleWithMSVC( | |||
3216 | LangOptions::MSVC2017_7); | |||
3217 | llvm::SmallString<64> CopyCtorMangling; | |||
3218 | if (!OmitCopyCtor && CD) { | |||
3219 | llvm::raw_svector_ostream Stream(CopyCtorMangling); | |||
3220 | msvc_hashing_ostream MHO(Stream); | |||
3221 | mangleCXXCtor(CD, CT, MHO); | |||
3222 | } | |||
3223 | Mangler.getStream() << CopyCtorMangling; | |||
3224 | ||||
3225 | Mangler.getStream() << Size; | |||
3226 | if (VBPtrOffset == -1) { | |||
3227 | if (NVOffset) { | |||
3228 | Mangler.getStream() << NVOffset; | |||
3229 | } | |||
3230 | } else { | |||
3231 | Mangler.getStream() << NVOffset; | |||
3232 | Mangler.getStream() << VBPtrOffset; | |||
3233 | Mangler.getStream() << VBIndex; | |||
3234 | } | |||
3235 | } | |||
3236 | ||||
3237 | void MicrosoftMangleContextImpl::mangleCXXRTTIBaseClassDescriptor( | |||
3238 | const CXXRecordDecl *Derived, uint32_t NVOffset, int32_t VBPtrOffset, | |||
3239 | uint32_t VBTableOffset, uint32_t Flags, raw_ostream &Out) { | |||
3240 | msvc_hashing_ostream MHO(Out); | |||
3241 | MicrosoftCXXNameMangler Mangler(*this, MHO); | |||
3242 | Mangler.getStream() << "??_R1"; | |||
3243 | Mangler.mangleNumber(NVOffset); | |||
3244 | Mangler.mangleNumber(VBPtrOffset); | |||
3245 | Mangler.mangleNumber(VBTableOffset); | |||
3246 | Mangler.mangleNumber(Flags); | |||
3247 | Mangler.mangleName(Derived); | |||
3248 | Mangler.getStream() << "8"; | |||
3249 | } | |||
3250 | ||||
3251 | void MicrosoftMangleContextImpl::mangleCXXRTTIBaseClassArray( | |||
3252 | const CXXRecordDecl *Derived, raw_ostream &Out) { | |||
3253 | msvc_hashing_ostream MHO(Out); | |||
3254 | MicrosoftCXXNameMangler Mangler(*this, MHO); | |||
3255 | Mangler.getStream() << "??_R2"; | |||
3256 | Mangler.mangleName(Derived); | |||
3257 | Mangler.getStream() << "8"; | |||
3258 | } | |||
3259 | ||||
3260 | void MicrosoftMangleContextImpl::mangleCXXRTTIClassHierarchyDescriptor( | |||
3261 | const CXXRecordDecl *Derived, raw_ostream &Out) { | |||
3262 | msvc_hashing_ostream MHO(Out); | |||
3263 | MicrosoftCXXNameMangler Mangler(*this, MHO); | |||
3264 | Mangler.getStream() << "??_R3"; | |||
3265 | Mangler.mangleName(Derived); | |||
3266 | Mangler.getStream() << "8"; | |||
3267 | } | |||
3268 | ||||
3269 | void MicrosoftMangleContextImpl::mangleCXXRTTICompleteObjectLocator( | |||
3270 | const CXXRecordDecl *Derived, ArrayRef<const CXXRecordDecl *> BasePath, | |||
3271 | raw_ostream &Out) { | |||
3272 | // <mangled-name> ::= ?_R4 <class-name> <storage-class> | |||
3273 | // <cvr-qualifiers> [<name>] @ | |||
3274 | // NOTE: <cvr-qualifiers> here is always 'B' (const). <storage-class> | |||
3275 | // is always '6' for vftables. | |||
3276 | llvm::SmallString<64> VFTableMangling; | |||
3277 | llvm::raw_svector_ostream Stream(VFTableMangling); | |||
3278 | mangleCXXVFTable(Derived, BasePath, Stream); | |||
3279 | ||||
3280 | if (VFTableMangling.startswith("??@")) { | |||
3281 | assert(VFTableMangling.endswith("@"))((VFTableMangling.endswith("@")) ? static_cast<void> (0 ) : __assert_fail ("VFTableMangling.endswith(\"@\")", "/build/llvm-toolchain-snapshot-10~++20200110111110+a1cc19b5814/clang/lib/AST/MicrosoftMangle.cpp" , 3281, __PRETTY_FUNCTION__)); | |||
3282 | Out << VFTableMangling << "??_R4@"; | |||
3283 | return; | |||
3284 | } | |||
3285 | ||||
3286 | 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~++20200110111110+a1cc19b5814/clang/lib/AST/MicrosoftMangle.cpp" , 3287, __PRETTY_FUNCTION__)) | |||
3287 | 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~++20200110111110+a1cc19b5814/clang/lib/AST/MicrosoftMangle.cpp" , 3287, __PRETTY_FUNCTION__)); | |||
3288 | ||||
3289 | Out << "??_R4" << StringRef(VFTableMangling).drop_front(4); | |||
3290 | } | |||
3291 | ||||
3292 | void MicrosoftMangleContextImpl::mangleSEHFilterExpression( | |||
3293 | const NamedDecl *EnclosingDecl, raw_ostream &Out) { | |||
3294 | msvc_hashing_ostream MHO(Out); | |||
3295 | MicrosoftCXXNameMangler Mangler(*this, MHO); | |||
3296 | // The function body is in the same comdat as the function with the handler, | |||
3297 | // so the numbering here doesn't have to be the same across TUs. | |||
3298 | // | |||
3299 | // <mangled-name> ::= ?filt$ <filter-number> @0 | |||
3300 | Mangler.getStream() << "?filt$" << SEHFilterIds[EnclosingDecl]++ << "@0@"; | |||
3301 | Mangler.mangleName(EnclosingDecl); | |||
3302 | } | |||
3303 | ||||
3304 | void MicrosoftMangleContextImpl::mangleSEHFinallyBlock( | |||
3305 | const NamedDecl *EnclosingDecl, raw_ostream &Out) { | |||
3306 | msvc_hashing_ostream MHO(Out); | |||
3307 | MicrosoftCXXNameMangler Mangler(*this, MHO); | |||
3308 | // The function body is in the same comdat as the function with the handler, | |||
3309 | // so the numbering here doesn't have to be the same across TUs. | |||
3310 | // | |||
3311 | // <mangled-name> ::= ?fin$ <filter-number> @0 | |||
3312 | Mangler.getStream() << "?fin$" << SEHFinallyIds[EnclosingDecl]++ << "@0@"; | |||
3313 | Mangler.mangleName(EnclosingDecl); | |||
3314 | } | |||
3315 | ||||
3316 | void MicrosoftMangleContextImpl::mangleTypeName(QualType T, raw_ostream &Out) { | |||
3317 | // This is just a made up unique string for the purposes of tbaa. undname | |||
3318 | // does *not* know how to demangle it. | |||
3319 | MicrosoftCXXNameMangler Mangler(*this, Out); | |||
3320 | Mangler.getStream() << '?'; | |||
3321 | Mangler.mangleType(T, SourceRange()); | |||
3322 | } | |||
3323 | ||||
3324 | void MicrosoftMangleContextImpl::mangleCXXCtor(const CXXConstructorDecl *D, | |||
3325 | CXXCtorType Type, | |||
3326 | raw_ostream &Out) { | |||
3327 | msvc_hashing_ostream MHO(Out); | |||
3328 | MicrosoftCXXNameMangler mangler(*this, MHO, D, Type); | |||
3329 | mangler.mangle(D); | |||
3330 | } | |||
3331 | ||||
3332 | void MicrosoftMangleContextImpl::mangleCXXDtor(const CXXDestructorDecl *D, | |||
3333 | CXXDtorType Type, | |||
3334 | raw_ostream &Out) { | |||
3335 | msvc_hashing_ostream MHO(Out); | |||
3336 | MicrosoftCXXNameMangler mangler(*this, MHO, D, Type); | |||
3337 | mangler.mangle(D); | |||
3338 | } | |||
3339 | ||||
3340 | void MicrosoftMangleContextImpl::mangleReferenceTemporary( | |||
3341 | const VarDecl *VD, unsigned ManglingNumber, raw_ostream &Out) { | |||
3342 | msvc_hashing_ostream MHO(Out); | |||
3343 | MicrosoftCXXNameMangler Mangler(*this, MHO); | |||
3344 | ||||
3345 | Mangler.getStream() << "?$RT" << ManglingNumber << '@'; | |||
3346 | Mangler.mangle(VD, ""); | |||
3347 | } | |||
3348 | ||||
3349 | void MicrosoftMangleContextImpl::mangleThreadSafeStaticGuardVariable( | |||
3350 | const VarDecl *VD, unsigned GuardNum, raw_ostream &Out) { | |||
3351 | msvc_hashing_ostream MHO(Out); | |||
3352 | MicrosoftCXXNameMangler Mangler(*this, MHO); | |||
3353 | ||||
3354 | Mangler.getStream() << "?$TSS" << GuardNum << '@'; | |||
3355 | Mangler.mangleNestedName(VD); | |||
3356 | Mangler.getStream() << "@4HA"; | |||
3357 | } | |||
3358 | ||||
3359 | void MicrosoftMangleContextImpl::mangleStaticGuardVariable(const VarDecl *VD, | |||
3360 | raw_ostream &Out) { | |||
3361 | // <guard-name> ::= ?_B <postfix> @5 <scope-depth> | |||
3362 | // ::= ?__J <postfix> @5 <scope-depth> | |||
3363 | // ::= ?$S <guard-num> @ <postfix> @4IA | |||
3364 | ||||
3365 | // The first mangling is what MSVC uses to guard static locals in inline | |||
3366 | // functions. It uses a different mangling in external functions to support | |||
3367 | // guarding more than 32 variables. MSVC rejects inline functions with more | |||
3368 | // than 32 static locals. We don't fully implement the second mangling | |||
3369 | // because those guards are not externally visible, and instead use LLVM's | |||
3370 | // default renaming when creating a new guard variable. | |||
3371 | msvc_hashing_ostream MHO(Out); | |||
3372 | MicrosoftCXXNameMangler Mangler(*this, MHO); | |||
3373 | ||||
3374 | bool Visible = VD->isExternallyVisible(); | |||
3375 | if (Visible) { | |||
3376 | Mangler.getStream() << (VD->getTLSKind() ? "??__J" : "??_B"); | |||
3377 | } else { | |||
3378 | Mangler.getStream() << "?$S1@"; | |||
3379 | } | |||
3380 | unsigned ScopeDepth = 0; | |||
3381 | if (Visible && !getNextDiscriminator(VD, ScopeDepth)) | |||
3382 | // If we do not have a discriminator and are emitting a guard variable for | |||
3383 | // use at global scope, then mangling the nested name will not be enough to | |||
3384 | // remove ambiguities. | |||
3385 | Mangler.mangle(VD, ""); | |||
3386 | else | |||
3387 | Mangler.mangleNestedName(VD); | |||
3388 | Mangler.getStream() << (Visible ? "@5" : "@4IA"); | |||
3389 | if (ScopeDepth) | |||
3390 | Mangler.mangleNumber(ScopeDepth); | |||
3391 | } | |||
3392 | ||||
3393 | void MicrosoftMangleContextImpl::mangleInitFiniStub(const VarDecl *D, | |||
3394 | char CharCode, | |||
3395 | raw_ostream &Out) { | |||
3396 | msvc_hashing_ostream MHO(Out); | |||
3397 | MicrosoftCXXNameMangler Mangler(*this, MHO); | |||
3398 | Mangler.getStream() << "??__" << CharCode; | |||
3399 | if (D->isStaticDataMember()) { | |||
3400 | Mangler.getStream() << '?'; | |||
3401 | Mangler.mangleName(D); | |||
3402 | Mangler.mangleVariableEncoding(D); | |||
3403 | Mangler.getStream() << "@@"; | |||
3404 | } else { | |||
3405 | Mangler.mangleName(D); | |||
3406 | } | |||
3407 | // This is the function class mangling. These stubs are global, non-variadic, | |||
3408 | // cdecl functions that return void and take no args. | |||
3409 | Mangler.getStream() << "YAXXZ"; | |||
3410 | } | |||
3411 | ||||
3412 | void MicrosoftMangleContextImpl::mangleDynamicInitializer(const VarDecl *D, | |||
3413 | raw_ostream &Out) { | |||
3414 | // <initializer-name> ::= ?__E <name> YAXXZ | |||
3415 | mangleInitFiniStub(D, 'E', Out); | |||
3416 | } | |||
3417 | ||||
3418 | void | |||
3419 | MicrosoftMangleContextImpl::mangleDynamicAtExitDestructor(const VarDecl *D, | |||
3420 | raw_ostream &Out) { | |||
3421 | // <destructor-name> ::= ?__F <name> YAXXZ | |||
3422 | mangleInitFiniStub(D, 'F', Out); | |||
3423 | } | |||
3424 | ||||
3425 | void MicrosoftMangleContextImpl::mangleStringLiteral(const StringLiteral *SL, | |||
3426 | raw_ostream &Out) { | |||
3427 | // <char-type> ::= 0 # char, char16_t, char32_t | |||
3428 | // # (little endian char data in mangling) | |||
3429 | // ::= 1 # wchar_t (big endian char data in mangling) | |||
3430 | // | |||
3431 | // <literal-length> ::= <non-negative integer> # the length of the literal | |||
3432 | // | |||
3433 | // <encoded-crc> ::= <hex digit>+ @ # crc of the literal including | |||
3434 | // # trailing null bytes | |||
3435 | // | |||
3436 | // <encoded-string> ::= <simple character> # uninteresting character | |||
3437 | // ::= '?$' <hex digit> <hex digit> # these two nibbles | |||
3438 | // # encode the byte for the | |||
3439 | // # character | |||
3440 | // ::= '?' [a-z] # \xe1 - \xfa | |||
3441 | // ::= '?' [A-Z] # \xc1 - \xda | |||
3442 | // ::= '?' [0-9] # [,/\:. \n\t'-] | |||
3443 | // | |||
3444 | // <literal> ::= '??_C@_' <char-type> <literal-length> <encoded-crc> | |||
3445 | // <encoded-string> '@' | |||
3446 | MicrosoftCXXNameMangler Mangler(*this, Out); | |||
3447 | Mangler.getStream() << "??_C@_"; | |||
3448 | ||||
3449 | // The actual string length might be different from that of the string literal | |||
3450 | // in cases like: | |||
3451 | // char foo[3] = "foobar"; | |||
3452 | // char bar[42] = "foobar"; | |||
3453 | // Where it is truncated or zero-padded to fit the array. This is the length | |||
3454 | // used for mangling, and any trailing null-bytes also need to be mangled. | |||
3455 | unsigned StringLength = getASTContext() | |||
3456 | .getAsConstantArrayType(SL->getType()) | |||
3457 | ->getSize() | |||
3458 | .getZExtValue(); | |||
3459 | unsigned StringByteLength = StringLength * SL->getCharByteWidth(); | |||
3460 | ||||
3461 | // <char-type>: The "kind" of string literal is encoded into the mangled name. | |||
3462 | if (SL->isWide()) | |||
3463 | Mangler.getStream() << '1'; | |||
3464 | else | |||
3465 | Mangler.getStream() << '0'; | |||
3466 | ||||
3467 | // <literal-length>: The next part of the mangled name consists of the length | |||
3468 | // of the string in bytes. | |||
3469 | Mangler.mangleNumber(StringByteLength); | |||
3470 | ||||
3471 | auto GetLittleEndianByte = [&SL](unsigned Index) { | |||
3472 | unsigned CharByteWidth = SL->getCharByteWidth(); | |||
3473 | if (Index / CharByteWidth >= SL->getLength()) | |||
3474 | return static_cast<char>(0); | |||
3475 | uint32_t CodeUnit = SL->getCodeUnit(Index / CharByteWidth); | |||
3476 | unsigned OffsetInCodeUnit = Index % CharByteWidth; | |||
3477 | return static_cast<char>((CodeUnit >> (8 * OffsetInCodeUnit)) & 0xff); | |||
3478 | }; | |||
3479 | ||||
3480 | auto GetBigEndianByte = [&SL](unsigned Index) { | |||
3481 | unsigned CharByteWidth = SL->getCharByteWidth(); | |||
3482 | if (Index / CharByteWidth >= SL->getLength()) | |||
3483 | return static_cast<char>(0); | |||
3484 | uint32_t CodeUnit = SL->getCodeUnit(Index / CharByteWidth); | |||
3485 | unsigned OffsetInCodeUnit = (CharByteWidth - 1) - (Index % CharByteWidth); | |||
3486 | return static_cast<char>((CodeUnit >> (8 * OffsetInCodeUnit)) & 0xff); | |||
3487 | }; | |||
3488 | ||||
3489 | // CRC all the bytes of the StringLiteral. | |||
3490 | llvm::JamCRC JC; | |||
3491 | for (unsigned I = 0, E = StringByteLength; I != E; ++I) | |||
3492 | JC.update(GetLittleEndianByte(I)); | |||
3493 | ||||
3494 | // <encoded-crc>: The CRC is encoded utilizing the standard number mangling | |||
3495 | // scheme. | |||
3496 | Mangler.mangleNumber(JC.getCRC()); | |||
3497 | ||||
3498 | // <encoded-string>: The mangled name also contains the first 32 bytes | |||
3499 | // (including null-terminator bytes) of the encoded StringLiteral. | |||
3500 | // Each character is encoded by splitting them into bytes and then encoding | |||
3501 | // the constituent bytes. | |||
3502 | auto MangleByte = [&Mangler](char Byte) { | |||
3503 | // There are five different manglings for characters: | |||
3504 | // - [a-zA-Z0-9_$]: A one-to-one mapping. | |||
3505 | // - ?[a-z]: The range from \xe1 to \xfa. | |||
3506 | // - ?[A-Z]: The range from \xc1 to \xda. | |||
3507 | // - ?[0-9]: The set of [,/\:. \n\t'-]. | |||
3508 | // - ?$XX: A fallback which maps nibbles. | |||
3509 | if (isIdentifierBody(Byte, /*AllowDollar=*/true)) { | |||
3510 | Mangler.getStream() << Byte; | |||
3511 | } else if (isLetter(Byte & 0x7f)) { | |||
3512 | Mangler.getStream() << '?' << static_cast<char>(Byte & 0x7f); | |||
3513 | } else { | |||
3514 | const char SpecialChars[] = {',', '/', '\\', ':', '.', | |||
3515 | ' ', '\n', '\t', '\'', '-'}; | |||
3516 | const char *Pos = llvm::find(SpecialChars, Byte); | |||
3517 | if (Pos != std::end(SpecialChars)) { | |||
3518 | Mangler.getStream() << '?' << (Pos - std::begin(SpecialChars)); | |||
3519 | } else { | |||
3520 | Mangler.getStream() << "?$"; | |||
3521 | Mangler.getStream() << static_cast<char>('A' + ((Byte >> 4) & 0xf)); | |||
3522 | Mangler.getStream() << static_cast<char>('A' + (Byte & 0xf)); | |||
3523 | } | |||
3524 | } | |||
3525 | }; | |||
3526 | ||||
3527 | // Enforce our 32 bytes max, except wchar_t which gets 32 chars instead. | |||
3528 | unsigned MaxBytesToMangle = SL->isWide() ? 64U : 32U; | |||
3529 | unsigned NumBytesToMangle = std::min(MaxBytesToMangle, StringByteLength); | |||
3530 | for (unsigned I = 0; I != NumBytesToMangle; ++I) { | |||
3531 | if (SL->isWide()) | |||
3532 | MangleByte(GetBigEndianByte(I)); | |||
3533 | else | |||
3534 | MangleByte(GetLittleEndianByte(I)); | |||
3535 | } | |||
3536 | ||||
3537 | Mangler.getStream() << '@'; | |||
3538 | } | |||
3539 | ||||
3540 | MicrosoftMangleContext * | |||
3541 | MicrosoftMangleContext::create(ASTContext &Context, DiagnosticsEngine &Diags) { | |||
3542 | return new MicrosoftMangleContextImpl(Context, Diags); | |||
3543 | } |