/Users/buildslave/jenkins/workspace/coverage/llvm-project/clang/lib/AST/MicrosoftMangle.cpp
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1 | | //===--- MicrosoftMangle.cpp - Microsoft Visual C++ Name Mangling ---------===// |
2 | | // |
3 | | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
4 | | // See https://llvm.org/LICENSE.txt for license information. |
5 | | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
6 | | // |
7 | | //===----------------------------------------------------------------------===// |
8 | | // |
9 | | // This provides C++ name mangling targeting the Microsoft Visual C++ ABI. |
10 | | // |
11 | | //===----------------------------------------------------------------------===// |
12 | | |
13 | | #include "clang/AST/ASTContext.h" |
14 | | #include "clang/AST/Attr.h" |
15 | | #include "clang/AST/CXXInheritance.h" |
16 | | #include "clang/AST/CharUnits.h" |
17 | | #include "clang/AST/Decl.h" |
18 | | #include "clang/AST/DeclCXX.h" |
19 | | #include "clang/AST/DeclObjC.h" |
20 | | #include "clang/AST/DeclOpenMP.h" |
21 | | #include "clang/AST/DeclTemplate.h" |
22 | | #include "clang/AST/Expr.h" |
23 | | #include "clang/AST/ExprCXX.h" |
24 | | #include "clang/AST/GlobalDecl.h" |
25 | | #include "clang/AST/Mangle.h" |
26 | | #include "clang/AST/VTableBuilder.h" |
27 | | #include "clang/Basic/ABI.h" |
28 | | #include "clang/Basic/DiagnosticOptions.h" |
29 | | #include "clang/Basic/FileManager.h" |
30 | | #include "clang/Basic/SourceManager.h" |
31 | | #include "clang/Basic/TargetInfo.h" |
32 | | #include "llvm/ADT/StringExtras.h" |
33 | | #include "llvm/Support/CRC.h" |
34 | | #include "llvm/Support/MD5.h" |
35 | | #include "llvm/Support/MathExtras.h" |
36 | | #include "llvm/Support/StringSaver.h" |
37 | | #include "llvm/Support/xxhash.h" |
38 | | |
39 | | using namespace clang; |
40 | | |
41 | | namespace { |
42 | | |
43 | | // Get GlobalDecl of DeclContext of local entities. |
44 | 538 | static GlobalDecl getGlobalDeclAsDeclContext(const DeclContext *DC) { |
45 | 538 | GlobalDecl GD; |
46 | 538 | if (auto *CD = dyn_cast<CXXConstructorDecl>(DC)) |
47 | 4 | GD = GlobalDecl(CD, Ctor_Complete); |
48 | 534 | else if (auto *DD = dyn_cast<CXXDestructorDecl>(DC)) |
49 | 4 | GD = GlobalDecl(DD, Dtor_Complete); |
50 | 530 | else |
51 | 530 | GD = GlobalDecl(cast<FunctionDecl>(DC)); |
52 | 538 | return GD; |
53 | 538 | } |
54 | | |
55 | | struct msvc_hashing_ostream : public llvm::raw_svector_ostream { |
56 | | raw_ostream &OS; |
57 | | llvm::SmallString<64> Buffer; |
58 | | |
59 | | msvc_hashing_ostream(raw_ostream &OS) |
60 | 32.0k | : llvm::raw_svector_ostream(Buffer), OS(OS) {} |
61 | 32.0k | ~msvc_hashing_ostream() override { |
62 | 32.0k | StringRef MangledName = str(); |
63 | 32.0k | bool StartsWithEscape = MangledName.startswith("\01"); |
64 | 32.0k | if (StartsWithEscape) |
65 | 0 | MangledName = MangledName.drop_front(1); |
66 | 32.0k | if (MangledName.size() < 4096) { |
67 | 31.9k | OS << str(); |
68 | 31.9k | return; |
69 | 31.9k | } |
70 | | |
71 | 134 | llvm::MD5 Hasher; |
72 | 134 | llvm::MD5::MD5Result Hash; |
73 | 134 | Hasher.update(MangledName); |
74 | 134 | Hasher.final(Hash); |
75 | | |
76 | 134 | SmallString<32> HexString; |
77 | 134 | llvm::MD5::stringifyResult(Hash, HexString); |
78 | | |
79 | 134 | if (StartsWithEscape) |
80 | 0 | OS << '\01'; |
81 | 134 | OS << "??@" << HexString << '@'; |
82 | 134 | } |
83 | | }; |
84 | | |
85 | | static const DeclContext * |
86 | 70.0k | getLambdaDefaultArgumentDeclContext(const Decl *D) { |
87 | 70.0k | if (const auto *RD = dyn_cast<CXXRecordDecl>(D)) |
88 | 27.5k | if (RD->isLambda()) |
89 | 352 | if (const auto *Parm = |
90 | 352 | dyn_cast_or_null<ParmVarDecl>(RD->getLambdaContextDecl())) |
91 | 60 | return Parm->getDeclContext(); |
92 | 69.9k | return nullptr; |
93 | 70.0k | } |
94 | | |
95 | | /// Retrieve the declaration context that should be used when mangling |
96 | | /// the given declaration. |
97 | 55.4k | static const DeclContext *getEffectiveDeclContext(const Decl *D) { |
98 | | // The ABI assumes that lambda closure types that occur within |
99 | | // default arguments live in the context of the function. However, due to |
100 | | // the way in which Clang parses and creates function declarations, this is |
101 | | // not the case: the lambda closure type ends up living in the context |
102 | | // where the function itself resides, because the function declaration itself |
103 | | // had not yet been created. Fix the context here. |
104 | 55.4k | if (const auto *LDADC = getLambdaDefaultArgumentDeclContext(D)) |
105 | 34 | return LDADC; |
106 | | |
107 | | // Perform the same check for block literals. |
108 | 55.3k | if (const BlockDecl *BD = dyn_cast<BlockDecl>(D)) { |
109 | 58 | if (ParmVarDecl *ContextParam = |
110 | 58 | dyn_cast_or_null<ParmVarDecl>(BD->getBlockManglingContextDecl())) |
111 | 16 | return ContextParam->getDeclContext(); |
112 | 58 | } |
113 | | |
114 | 55.3k | const DeclContext *DC = D->getDeclContext(); |
115 | 55.3k | if (isa<CapturedDecl>(DC) || isa<OMPDeclareReductionDecl>(DC) || |
116 | 55.3k | isa<OMPDeclareMapperDecl>(DC)) { |
117 | 0 | return getEffectiveDeclContext(cast<Decl>(DC)); |
118 | 0 | } |
119 | | |
120 | 55.3k | return DC->getRedeclContext(); |
121 | 55.3k | } |
122 | | |
123 | 0 | static const DeclContext *getEffectiveParentContext(const DeclContext *DC) { |
124 | 0 | return getEffectiveDeclContext(cast<Decl>(DC)); |
125 | 0 | } |
126 | | |
127 | 2.93k | static const FunctionDecl *getStructor(const NamedDecl *ND) { |
128 | 2.93k | if (const auto *FTD = dyn_cast<FunctionTemplateDecl>(ND)) |
129 | 8 | return FTD->getTemplatedDecl()->getCanonicalDecl(); |
130 | | |
131 | 2.92k | const auto *FD = cast<FunctionDecl>(ND); |
132 | 2.92k | if (const auto *FTD = FD->getPrimaryTemplate()) |
133 | 11 | return FTD->getTemplatedDecl()->getCanonicalDecl(); |
134 | | |
135 | 2.91k | return FD->getCanonicalDecl(); |
136 | 2.92k | } |
137 | | |
138 | | /// MicrosoftMangleContextImpl - Overrides the default MangleContext for the |
139 | | /// Microsoft Visual C++ ABI. |
140 | | class MicrosoftMangleContextImpl : public MicrosoftMangleContext { |
141 | | typedef std::pair<const DeclContext *, IdentifierInfo *> DiscriminatorKeyTy; |
142 | | llvm::DenseMap<DiscriminatorKeyTy, unsigned> Discriminator; |
143 | | llvm::DenseMap<const NamedDecl *, unsigned> Uniquifier; |
144 | | llvm::DenseMap<const CXXRecordDecl *, unsigned> LambdaIds; |
145 | | llvm::DenseMap<const NamedDecl *, unsigned> SEHFilterIds; |
146 | | llvm::DenseMap<const NamedDecl *, unsigned> SEHFinallyIds; |
147 | | SmallString<16> AnonymousNamespaceHash; |
148 | | |
149 | | public: |
150 | | MicrosoftMangleContextImpl(ASTContext &Context, DiagnosticsEngine &Diags, |
151 | | bool IsAux = false); |
152 | | bool shouldMangleCXXName(const NamedDecl *D) override; |
153 | | bool shouldMangleStringLiteral(const StringLiteral *SL) override; |
154 | | void mangleCXXName(GlobalDecl GD, raw_ostream &Out) override; |
155 | | void mangleVirtualMemPtrThunk(const CXXMethodDecl *MD, |
156 | | const MethodVFTableLocation &ML, |
157 | | raw_ostream &Out) override; |
158 | | void mangleThunk(const CXXMethodDecl *MD, const ThunkInfo &Thunk, |
159 | | raw_ostream &) override; |
160 | | void mangleCXXDtorThunk(const CXXDestructorDecl *DD, CXXDtorType Type, |
161 | | const ThisAdjustment &ThisAdjustment, |
162 | | raw_ostream &) override; |
163 | | void mangleCXXVFTable(const CXXRecordDecl *Derived, |
164 | | ArrayRef<const CXXRecordDecl *> BasePath, |
165 | | raw_ostream &Out) override; |
166 | | void mangleCXXVBTable(const CXXRecordDecl *Derived, |
167 | | ArrayRef<const CXXRecordDecl *> BasePath, |
168 | | raw_ostream &Out) override; |
169 | | void mangleCXXVirtualDisplacementMap(const CXXRecordDecl *SrcRD, |
170 | | const CXXRecordDecl *DstRD, |
171 | | raw_ostream &Out) override; |
172 | | void mangleCXXThrowInfo(QualType T, bool IsConst, bool IsVolatile, |
173 | | bool IsUnaligned, uint32_t NumEntries, |
174 | | raw_ostream &Out) override; |
175 | | void mangleCXXCatchableTypeArray(QualType T, uint32_t NumEntries, |
176 | | raw_ostream &Out) override; |
177 | | void mangleCXXCatchableType(QualType T, const CXXConstructorDecl *CD, |
178 | | CXXCtorType CT, uint32_t Size, uint32_t NVOffset, |
179 | | int32_t VBPtrOffset, uint32_t VBIndex, |
180 | | raw_ostream &Out) override; |
181 | | void mangleCXXRTTI(QualType T, raw_ostream &Out) override; |
182 | | void mangleCXXRTTIName(QualType T, raw_ostream &Out) override; |
183 | | void mangleCXXRTTIBaseClassDescriptor(const CXXRecordDecl *Derived, |
184 | | uint32_t NVOffset, int32_t VBPtrOffset, |
185 | | uint32_t VBTableOffset, uint32_t Flags, |
186 | | raw_ostream &Out) override; |
187 | | void mangleCXXRTTIBaseClassArray(const CXXRecordDecl *Derived, |
188 | | raw_ostream &Out) override; |
189 | | void mangleCXXRTTIClassHierarchyDescriptor(const CXXRecordDecl *Derived, |
190 | | raw_ostream &Out) override; |
191 | | void |
192 | | mangleCXXRTTICompleteObjectLocator(const CXXRecordDecl *Derived, |
193 | | ArrayRef<const CXXRecordDecl *> BasePath, |
194 | | raw_ostream &Out) override; |
195 | | void mangleTypeName(QualType T, raw_ostream &) override; |
196 | | void mangleReferenceTemporary(const VarDecl *, unsigned ManglingNumber, |
197 | | raw_ostream &) override; |
198 | | void mangleStaticGuardVariable(const VarDecl *D, raw_ostream &Out) override; |
199 | | void mangleThreadSafeStaticGuardVariable(const VarDecl *D, unsigned GuardNum, |
200 | | raw_ostream &Out) override; |
201 | | void mangleDynamicInitializer(const VarDecl *D, raw_ostream &Out) override; |
202 | | void mangleDynamicAtExitDestructor(const VarDecl *D, |
203 | | raw_ostream &Out) override; |
204 | | void mangleSEHFilterExpression(const NamedDecl *EnclosingDecl, |
205 | | raw_ostream &Out) override; |
206 | | void mangleSEHFinallyBlock(const NamedDecl *EnclosingDecl, |
207 | | raw_ostream &Out) override; |
208 | | void mangleStringLiteral(const StringLiteral *SL, raw_ostream &Out) override; |
209 | 8.54k | bool getNextDiscriminator(const NamedDecl *ND, unsigned &disc) { |
210 | 8.54k | const DeclContext *DC = getEffectiveDeclContext(ND); |
211 | 8.54k | if (!DC->isFunctionOrMethod()) |
212 | 7.94k | return false; |
213 | | |
214 | | // Lambda closure types are already numbered, give out a phony number so |
215 | | // that they demangle nicely. |
216 | 607 | if (const auto *RD = dyn_cast<CXXRecordDecl>(ND)) { |
217 | 258 | if (RD->isLambda()) { |
218 | 153 | disc = 1; |
219 | 153 | return true; |
220 | 153 | } |
221 | 258 | } |
222 | | |
223 | | // Use the canonical number for externally visible decls. |
224 | 454 | if (ND->isExternallyVisible()) { |
225 | 234 | disc = getASTContext().getManglingNumber(ND, isAux()); |
226 | 234 | return true; |
227 | 234 | } |
228 | | |
229 | | // Anonymous tags are already numbered. |
230 | 220 | if (const TagDecl *Tag = dyn_cast<TagDecl>(ND)) { |
231 | 73 | if (!Tag->hasNameForLinkage() && |
232 | 73 | !getASTContext().getDeclaratorForUnnamedTagDecl(Tag)19 && |
233 | 73 | !getASTContext().getTypedefNameForUnnamedTagDecl(Tag)0 ) |
234 | 0 | return false; |
235 | 73 | } |
236 | | |
237 | | // Make up a reasonable number for internal decls. |
238 | 220 | unsigned &discriminator = Uniquifier[ND]; |
239 | 220 | if (!discriminator) |
240 | 91 | discriminator = ++Discriminator[std::make_pair(DC, ND->getIdentifier())]; |
241 | 220 | disc = discriminator + 1; |
242 | 220 | return true; |
243 | 220 | } |
244 | | |
245 | 16 | std::string getLambdaString(const CXXRecordDecl *Lambda) override { |
246 | 16 | assert(Lambda->isLambda() && "RD must be a lambda!"); |
247 | 0 | std::string Name("<lambda_"); |
248 | | |
249 | 16 | Decl *LambdaContextDecl = Lambda->getLambdaContextDecl(); |
250 | 16 | unsigned LambdaManglingNumber = Lambda->getLambdaManglingNumber(); |
251 | 16 | unsigned LambdaId; |
252 | 16 | const ParmVarDecl *Parm = dyn_cast_or_null<ParmVarDecl>(LambdaContextDecl); |
253 | 16 | const FunctionDecl *Func = |
254 | 16 | Parm ? dyn_cast<FunctionDecl>(Parm->getDeclContext())6 : nullptr10 ; |
255 | | |
256 | 16 | if (Func) { |
257 | 6 | unsigned DefaultArgNo = |
258 | 6 | Func->getNumParams() - Parm->getFunctionScopeIndex(); |
259 | 6 | Name += llvm::utostr(DefaultArgNo); |
260 | 6 | Name += "_"; |
261 | 6 | } |
262 | | |
263 | 16 | if (LambdaManglingNumber) |
264 | 13 | LambdaId = LambdaManglingNumber; |
265 | 3 | else |
266 | 3 | LambdaId = getLambdaIdForDebugInfo(Lambda); |
267 | | |
268 | 16 | Name += llvm::utostr(LambdaId); |
269 | 16 | Name += ">"; |
270 | 16 | return Name; |
271 | 16 | } |
272 | | |
273 | 53 | unsigned getLambdaId(const CXXRecordDecl *RD) { |
274 | 53 | assert(RD->isLambda() && "RD must be a lambda!"); |
275 | 0 | assert(!RD->isExternallyVisible() && "RD must not be visible!"); |
276 | 0 | assert(RD->getLambdaManglingNumber() == 0 && |
277 | 53 | "RD must not have a mangling number!"); |
278 | 0 | std::pair<llvm::DenseMap<const CXXRecordDecl *, unsigned>::iterator, bool> |
279 | 53 | Result = LambdaIds.insert(std::make_pair(RD, LambdaIds.size())); |
280 | 53 | return Result.first->second; |
281 | 53 | } |
282 | | |
283 | 3 | unsigned getLambdaIdForDebugInfo(const CXXRecordDecl *RD) { |
284 | 3 | assert(RD->isLambda() && "RD must be a lambda!"); |
285 | 0 | assert(!RD->isExternallyVisible() && "RD must not be visible!"); |
286 | 0 | assert(RD->getLambdaManglingNumber() == 0 && |
287 | 3 | "RD must not have a mangling number!"); |
288 | 0 | llvm::DenseMap<const CXXRecordDecl *, unsigned>::iterator Result = |
289 | 3 | LambdaIds.find(RD); |
290 | | // The lambda should exist, but return 0 in case it doesn't. |
291 | 3 | if (Result == LambdaIds.end()) |
292 | 2 | return 0; |
293 | 1 | return Result->second; |
294 | 3 | } |
295 | | |
296 | | /// Return a character sequence that is (somewhat) unique to the TU suitable |
297 | | /// for mangling anonymous namespaces. |
298 | 299 | StringRef getAnonymousNamespaceHash() const { |
299 | 299 | return AnonymousNamespaceHash; |
300 | 299 | } |
301 | | |
302 | | private: |
303 | | void mangleInitFiniStub(const VarDecl *D, char CharCode, raw_ostream &Out); |
304 | | }; |
305 | | |
306 | | /// MicrosoftCXXNameMangler - Manage the mangling of a single name for the |
307 | | /// Microsoft Visual C++ ABI. |
308 | | class MicrosoftCXXNameMangler { |
309 | | MicrosoftMangleContextImpl &Context; |
310 | | raw_ostream &Out; |
311 | | |
312 | | /// The "structor" is the top-level declaration being mangled, if |
313 | | /// that's not a template specialization; otherwise it's the pattern |
314 | | /// for that specialization. |
315 | | const NamedDecl *Structor; |
316 | | unsigned StructorType; |
317 | | |
318 | | typedef llvm::SmallVector<std::string, 10> BackRefVec; |
319 | | BackRefVec NameBackReferences; |
320 | | |
321 | | typedef llvm::DenseMap<const void *, unsigned> ArgBackRefMap; |
322 | | ArgBackRefMap FunArgBackReferences; |
323 | | ArgBackRefMap TemplateArgBackReferences; |
324 | | |
325 | | typedef llvm::DenseMap<const void *, StringRef> TemplateArgStringMap; |
326 | | TemplateArgStringMap TemplateArgStrings; |
327 | | llvm::StringSaver TemplateArgStringStorage; |
328 | | llvm::BumpPtrAllocator TemplateArgStringStorageAlloc; |
329 | | |
330 | | typedef std::set<std::pair<int, bool>> PassObjectSizeArgsSet; |
331 | | PassObjectSizeArgsSet PassObjectSizeArgs; |
332 | | |
333 | 193k | ASTContext &getASTContext() const { return Context.getASTContext(); } |
334 | | |
335 | | const bool PointersAre64Bit; |
336 | | |
337 | | public: |
338 | | enum QualifierMangleMode { QMM_Drop, QMM_Mangle, QMM_Escape, QMM_Result }; |
339 | | |
340 | | MicrosoftCXXNameMangler(MicrosoftMangleContextImpl &C, raw_ostream &Out_) |
341 | | : Context(C), Out(Out_), Structor(nullptr), StructorType(-1), |
342 | | TemplateArgStringStorage(TemplateArgStringStorageAlloc), |
343 | | PointersAre64Bit(C.getASTContext().getTargetInfo().getPointerWidth(0) == |
344 | 34.3k | 64) {} |
345 | | |
346 | | MicrosoftCXXNameMangler(MicrosoftMangleContextImpl &C, raw_ostream &Out_, |
347 | | const CXXConstructorDecl *D, CXXCtorType Type) |
348 | | : Context(C), Out(Out_), Structor(getStructor(D)), StructorType(Type), |
349 | | TemplateArgStringStorage(TemplateArgStringStorageAlloc), |
350 | | PointersAre64Bit(C.getASTContext().getTargetInfo().getPointerWidth(0) == |
351 | 1.62k | 64) {} |
352 | | |
353 | | MicrosoftCXXNameMangler(MicrosoftMangleContextImpl &C, raw_ostream &Out_, |
354 | | const CXXDestructorDecl *D, CXXDtorType Type) |
355 | | : Context(C), Out(Out_), Structor(getStructor(D)), StructorType(Type), |
356 | | TemplateArgStringStorage(TemplateArgStringStorageAlloc), |
357 | | PointersAre64Bit(C.getASTContext().getTargetInfo().getPointerWidth(0) == |
358 | 1.02k | 64) {} |
359 | | |
360 | 24.5k | raw_ostream &getStream() const { return Out; } |
361 | | |
362 | | void mangle(GlobalDecl GD, StringRef Prefix = "?"); |
363 | | void mangleName(GlobalDecl GD); |
364 | | void mangleFunctionEncoding(GlobalDecl GD, bool ShouldMangle); |
365 | | void mangleVariableEncoding(const VarDecl *VD); |
366 | | void mangleMemberDataPointer(const CXXRecordDecl *RD, const ValueDecl *VD, |
367 | | StringRef Prefix = "$"); |
368 | | void mangleMemberFunctionPointer(const CXXRecordDecl *RD, |
369 | | const CXXMethodDecl *MD, |
370 | | StringRef Prefix = "$"); |
371 | | void mangleVirtualMemPtrThunk(const CXXMethodDecl *MD, |
372 | | const MethodVFTableLocation &ML); |
373 | | void mangleNumber(int64_t Number); |
374 | | void mangleNumber(llvm::APSInt Number); |
375 | | void mangleFloat(llvm::APFloat Number); |
376 | | void mangleBits(llvm::APInt Number); |
377 | | void mangleTagTypeKind(TagTypeKind TK); |
378 | | void mangleArtificialTagType(TagTypeKind TK, StringRef UnqualifiedName, |
379 | | ArrayRef<StringRef> NestedNames = None); |
380 | | void mangleAddressSpaceType(QualType T, Qualifiers Quals, SourceRange Range); |
381 | | void mangleType(QualType T, SourceRange Range, |
382 | | QualifierMangleMode QMM = QMM_Mangle); |
383 | | void mangleFunctionType(const FunctionType *T, |
384 | | const FunctionDecl *D = nullptr, |
385 | | bool ForceThisQuals = false, |
386 | | bool MangleExceptionSpec = true); |
387 | | void mangleNestedName(GlobalDecl GD); |
388 | | |
389 | | private: |
390 | 4.42k | bool isStructorDecl(const NamedDecl *ND) const { |
391 | 4.42k | return ND == Structor || getStructor(ND) == Structor280 ; |
392 | 4.42k | } |
393 | | |
394 | 6.40k | bool is64BitPointer(Qualifiers Quals) const { |
395 | 6.40k | LangAS AddrSpace = Quals.getAddressSpace(); |
396 | 6.40k | return AddrSpace == LangAS::ptr64 || |
397 | 6.40k | (PointersAre64Bit && !(2.66k AddrSpace == LangAS::ptr32_sptr2.66k || |
398 | 2.66k | AddrSpace == LangAS::ptr32_uptr2.65k )); |
399 | 6.40k | } |
400 | | |
401 | 60.1k | void mangleUnqualifiedName(GlobalDecl GD) { |
402 | 60.1k | mangleUnqualifiedName(GD, cast<NamedDecl>(GD.getDecl())->getDeclName()); |
403 | 60.1k | } |
404 | | void mangleUnqualifiedName(GlobalDecl GD, DeclarationName Name); |
405 | | void mangleSourceName(StringRef Name); |
406 | | void mangleOperatorName(OverloadedOperatorKind OO, SourceLocation Loc); |
407 | | void mangleCXXDtorType(CXXDtorType T); |
408 | | void mangleQualifiers(Qualifiers Quals, bool IsMember); |
409 | | void mangleRefQualifier(RefQualifierKind RefQualifier); |
410 | | void manglePointerCVQualifiers(Qualifiers Quals); |
411 | | void manglePointerExtQualifiers(Qualifiers Quals, QualType PointeeType); |
412 | | |
413 | | void mangleUnscopedTemplateName(GlobalDecl GD); |
414 | | void |
415 | | mangleTemplateInstantiationName(GlobalDecl GD, |
416 | | const TemplateArgumentList &TemplateArgs); |
417 | | void mangleObjCMethodName(const ObjCMethodDecl *MD); |
418 | | |
419 | | void mangleFunctionArgumentType(QualType T, SourceRange Range); |
420 | | void manglePassObjectSizeArg(const PassObjectSizeAttr *POSA); |
421 | | |
422 | | bool isArtificialTagType(QualType T) const; |
423 | | |
424 | | // Declare manglers for every type class. |
425 | | #define ABSTRACT_TYPE(CLASS, PARENT) |
426 | | #define NON_CANONICAL_TYPE(CLASS, PARENT) |
427 | | #define TYPE(CLASS, PARENT) void mangleType(const CLASS##Type *T, \ |
428 | | Qualifiers Quals, \ |
429 | | SourceRange Range); |
430 | | #include "clang/AST/TypeNodes.inc" |
431 | | #undef ABSTRACT_TYPE |
432 | | #undef NON_CANONICAL_TYPE |
433 | | #undef TYPE |
434 | | |
435 | | void mangleType(const TagDecl *TD); |
436 | | void mangleDecayedArrayType(const ArrayType *T); |
437 | | void mangleArrayType(const ArrayType *T); |
438 | | void mangleFunctionClass(const FunctionDecl *FD); |
439 | | void mangleCallingConvention(CallingConv CC); |
440 | | void mangleCallingConvention(const FunctionType *T); |
441 | | void mangleIntegerLiteral(const llvm::APSInt &Number, |
442 | | const NonTypeTemplateParmDecl *PD = nullptr, |
443 | | QualType TemplateArgType = QualType()); |
444 | | void mangleExpression(const Expr *E, const NonTypeTemplateParmDecl *PD); |
445 | | void mangleThrowSpecification(const FunctionProtoType *T); |
446 | | |
447 | | void mangleTemplateArgs(const TemplateDecl *TD, |
448 | | const TemplateArgumentList &TemplateArgs); |
449 | | void mangleTemplateArg(const TemplateDecl *TD, const TemplateArgument &TA, |
450 | | const NamedDecl *Parm); |
451 | | void mangleTemplateArgValue(QualType T, const APValue &V, |
452 | | bool WithScalarType = false); |
453 | | |
454 | | void mangleObjCProtocol(const ObjCProtocolDecl *PD); |
455 | | void mangleObjCLifetime(const QualType T, Qualifiers Quals, |
456 | | SourceRange Range); |
457 | | void mangleObjCKindOfType(const ObjCObjectType *T, Qualifiers Quals, |
458 | | SourceRange Range); |
459 | | }; |
460 | | } |
461 | | |
462 | | MicrosoftMangleContextImpl::MicrosoftMangleContextImpl(ASTContext &Context, |
463 | | DiagnosticsEngine &Diags, |
464 | | bool IsAux) |
465 | 882 | : MicrosoftMangleContext(Context, Diags, IsAux) { |
466 | | // To mangle anonymous namespaces, hash the path to the main source file. The |
467 | | // path should be whatever (probably relative) path was passed on the command |
468 | | // line. The goal is for the compiler to produce the same output regardless of |
469 | | // working directory, so use the uncanonicalized relative path. |
470 | | // |
471 | | // It's important to make the mangled names unique because, when CodeView |
472 | | // debug info is in use, the debugger uses mangled type names to distinguish |
473 | | // between otherwise identically named types in anonymous namespaces. |
474 | | // |
475 | | // These symbols are always internal, so there is no need for the hash to |
476 | | // match what MSVC produces. For the same reason, clang is free to change the |
477 | | // hash at any time without breaking compatibility with old versions of clang. |
478 | | // The generated names are intended to look similar to what MSVC generates, |
479 | | // which are something like "?A0x01234567@". |
480 | 882 | SourceManager &SM = Context.getSourceManager(); |
481 | 882 | if (const FileEntry *FE = SM.getFileEntryForID(SM.getMainFileID())) { |
482 | | // Truncate the hash so we get 8 characters of hexadecimal. |
483 | 880 | uint32_t TruncatedHash = uint32_t(xxHash64(FE->getName())); |
484 | 880 | AnonymousNamespaceHash = llvm::utohexstr(TruncatedHash); |
485 | 880 | } else { |
486 | | // If we don't have a path to the main file, we'll just use 0. |
487 | 2 | AnonymousNamespaceHash = "0"; |
488 | 2 | } |
489 | 882 | } |
490 | | |
491 | 129k | bool MicrosoftMangleContextImpl::shouldMangleCXXName(const NamedDecl *D) { |
492 | 129k | if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) { |
493 | 124k | LanguageLinkage L = FD->getLanguageLinkage(); |
494 | | // Overloadable functions need mangling. |
495 | 124k | if (FD->hasAttr<OverloadableAttr>()) |
496 | 105 | return true; |
497 | | |
498 | | // The ABI expects that we would never mangle "typical" user-defined entry |
499 | | // points regardless of visibility or freestanding-ness. |
500 | | // |
501 | | // N.B. This is distinct from asking about "main". "main" has a lot of |
502 | | // special rules associated with it in the standard while these |
503 | | // user-defined entry points are outside of the purview of the standard. |
504 | | // For example, there can be only one definition for "main" in a standards |
505 | | // compliant program; however nothing forbids the existence of wmain and |
506 | | // WinMain in the same translation unit. |
507 | 124k | if (FD->isMSVCRTEntryPoint()) |
508 | 106 | return false; |
509 | | |
510 | | // C++ functions and those whose names are not a simple identifier need |
511 | | // mangling. |
512 | 124k | if (!FD->getDeclName().isIdentifier() || L == CXXLanguageLinkage113k ) |
513 | 29.2k | return true; |
514 | | |
515 | | // C functions are not mangled. |
516 | 95.1k | if (L == CLanguageLinkage) |
517 | 994 | return false; |
518 | 95.1k | } |
519 | | |
520 | | // Otherwise, no mangling is done outside C++ mode. |
521 | 99.1k | if (!getASTContext().getLangOpts().CPlusPlus) |
522 | 51.7k | return false; |
523 | | |
524 | 47.3k | const VarDecl *VD = dyn_cast<VarDecl>(D); |
525 | 47.3k | if (VD && !isa<DecompositionDecl>(D)4.86k ) { |
526 | | // C variables are not mangled. |
527 | 4.85k | if (VD->isExternC()) |
528 | 26 | return false; |
529 | | |
530 | | // Variables at global scope with internal linkage are not mangled. |
531 | 4.82k | const DeclContext *DC = getEffectiveDeclContext(D); |
532 | | // Check for extern variable declared locally. |
533 | 4.82k | if (DC->isFunctionOrMethod() && D->hasLinkage()334 ) |
534 | 0 | while (!DC->isNamespace() && !DC->isTranslationUnit()) |
535 | 0 | DC = getEffectiveParentContext(DC); |
536 | | |
537 | 4.82k | if (DC->isTranslationUnit() && D->getFormalLinkage() == InternalLinkage3.14k && |
538 | 4.82k | !isa<VarTemplateSpecializationDecl>(D)24 && |
539 | 4.82k | D->getIdentifier() != nullptr24 ) |
540 | 20 | return false; |
541 | 4.82k | } |
542 | | |
543 | 47.3k | return true; |
544 | 47.3k | } |
545 | | |
546 | | bool |
547 | 794 | MicrosoftMangleContextImpl::shouldMangleStringLiteral(const StringLiteral *SL) { |
548 | 794 | return true; |
549 | 794 | } |
550 | | |
551 | 26.7k | void MicrosoftCXXNameMangler::mangle(GlobalDecl GD, StringRef Prefix) { |
552 | 26.7k | const NamedDecl *D = cast<NamedDecl>(GD.getDecl()); |
553 | | // MSVC doesn't mangle C++ names the same way it mangles extern "C" names. |
554 | | // Therefore it's really important that we don't decorate the |
555 | | // name with leading underscores or leading/trailing at signs. So, by |
556 | | // default, we emit an asm marker at the start so we get the name right. |
557 | | // Callers can override this with a custom prefix. |
558 | | |
559 | | // <mangled-name> ::= ? <name> <type-encoding> |
560 | 26.7k | Out << Prefix; |
561 | 26.7k | mangleName(GD); |
562 | 26.7k | if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) |
563 | 24.2k | mangleFunctionEncoding(GD, Context.shouldMangleDeclName(FD)); |
564 | 2.44k | else if (const VarDecl *VD = dyn_cast<VarDecl>(D)) |
565 | 2.42k | mangleVariableEncoding(VD); |
566 | 23 | else if (isa<MSGuidDecl>(D)) |
567 | | // MSVC appears to mangle GUIDs as if they were variables of type |
568 | | // 'const struct __s_GUID'. |
569 | 20 | Out << "3U__s_GUID@@B"; |
570 | 3 | else if (isa<TemplateParamObjectDecl>(D)) { |
571 | | // Template parameter objects don't get a <type-encoding>; their type is |
572 | | // specified as part of their value. |
573 | 3 | } else |
574 | 0 | llvm_unreachable("Tried to mangle unexpected NamedDecl!"); |
575 | 26.7k | } |
576 | | |
577 | | void MicrosoftCXXNameMangler::mangleFunctionEncoding(GlobalDecl GD, |
578 | 24.3k | bool ShouldMangle) { |
579 | 24.3k | const FunctionDecl *FD = cast<FunctionDecl>(GD.getDecl()); |
580 | | // <type-encoding> ::= <function-class> <function-type> |
581 | | |
582 | | // Since MSVC operates on the type as written and not the canonical type, it |
583 | | // actually matters which decl we have here. MSVC appears to choose the |
584 | | // first, since it is most likely to be the declaration in a header file. |
585 | 24.3k | FD = FD->getFirstDecl(); |
586 | | |
587 | | // We should never ever see a FunctionNoProtoType at this point. |
588 | | // We don't even know how to mangle their types anyway :). |
589 | 24.3k | const FunctionProtoType *FT = FD->getType()->castAs<FunctionProtoType>(); |
590 | | |
591 | | // extern "C" functions can hold entities that must be mangled. |
592 | | // As it stands, these functions still need to get expressed in the full |
593 | | // external name. They have their class and type omitted, replaced with '9'. |
594 | 24.3k | if (ShouldMangle) { |
595 | | // We would like to mangle all extern "C" functions using this additional |
596 | | // component but this would break compatibility with MSVC's behavior. |
597 | | // Instead, do this when we know that compatibility isn't important (in |
598 | | // other words, when it is an overloaded extern "C" function). |
599 | 24.2k | if (FD->isExternC() && FD->hasAttr<OverloadableAttr>()32 ) |
600 | 28 | Out << "$$J0"; |
601 | | |
602 | 24.2k | mangleFunctionClass(FD); |
603 | | |
604 | 24.2k | mangleFunctionType(FT, FD, false, false); |
605 | 24.2k | } else { |
606 | 25 | Out << '9'; |
607 | 25 | } |
608 | 24.3k | } |
609 | | |
610 | 2.47k | void MicrosoftCXXNameMangler::mangleVariableEncoding(const VarDecl *VD) { |
611 | | // <type-encoding> ::= <storage-class> <variable-type> |
612 | | // <storage-class> ::= 0 # private static member |
613 | | // ::= 1 # protected static member |
614 | | // ::= 2 # public static member |
615 | | // ::= 3 # global |
616 | | // ::= 4 # static local |
617 | | |
618 | | // The first character in the encoding (after the name) is the storage class. |
619 | 2.47k | if (VD->isStaticDataMember()) { |
620 | | // If it's a static member, it also encodes the access level. |
621 | 332 | switch (VD->getAccess()) { |
622 | 0 | default: |
623 | 13 | case AS_private: Out << '0'; break; |
624 | 5 | case AS_protected: Out << '1'; break; |
625 | 314 | case AS_public: Out << '2'; break; |
626 | 332 | } |
627 | 332 | } |
628 | 2.14k | else if (!VD->isStaticLocal()) |
629 | 1.97k | Out << '3'; |
630 | 167 | else |
631 | 167 | Out << '4'; |
632 | | // Now mangle the type. |
633 | | // <variable-type> ::= <type> <cvr-qualifiers> |
634 | | // ::= <type> <pointee-cvr-qualifiers> # pointers, references |
635 | | // Pointers and references are odd. The type of 'int * const foo;' gets |
636 | | // mangled as 'QAHA' instead of 'PAHB', for example. |
637 | 2.47k | SourceRange SR = VD->getSourceRange(); |
638 | 2.47k | QualType Ty = VD->getType(); |
639 | 2.47k | if (Ty->isPointerType() || Ty->isReferenceType()1.66k || |
640 | 2.47k | Ty->isMemberPointerType()1.64k ) { |
641 | 958 | mangleType(Ty, SR, QMM_Drop); |
642 | 958 | manglePointerExtQualifiers( |
643 | 958 | Ty.getDesugaredType(getASTContext()).getLocalQualifiers(), QualType()); |
644 | 958 | if (const MemberPointerType *MPT = Ty->getAs<MemberPointerType>()) { |
645 | 126 | mangleQualifiers(MPT->getPointeeType().getQualifiers(), true); |
646 | | // Member pointers are suffixed with a back reference to the member |
647 | | // pointer's class name. |
648 | 126 | mangleName(MPT->getClass()->getAsCXXRecordDecl()); |
649 | 126 | } else |
650 | 832 | mangleQualifiers(Ty->getPointeeType().getQualifiers(), false); |
651 | 1.51k | } else if (const ArrayType *AT = getASTContext().getAsArrayType(Ty)) { |
652 | | // Global arrays are funny, too. |
653 | 110 | mangleDecayedArrayType(AT); |
654 | 110 | if (AT->getElementType()->isArrayType()) |
655 | 12 | Out << 'A'; |
656 | 98 | else |
657 | 98 | mangleQualifiers(Ty.getQualifiers(), false); |
658 | 1.40k | } else { |
659 | 1.40k | mangleType(Ty, SR, QMM_Drop); |
660 | 1.40k | mangleQualifiers(Ty.getQualifiers(), false); |
661 | 1.40k | } |
662 | 2.47k | } |
663 | | |
664 | | void MicrosoftCXXNameMangler::mangleMemberDataPointer(const CXXRecordDecl *RD, |
665 | | const ValueDecl *VD, |
666 | 20 | StringRef Prefix) { |
667 | | // <member-data-pointer> ::= <integer-literal> |
668 | | // ::= $F <number> <number> |
669 | | // ::= $G <number> <number> <number> |
670 | | |
671 | 20 | int64_t FieldOffset; |
672 | 20 | int64_t VBTableOffset; |
673 | 20 | MSInheritanceModel IM = RD->getMSInheritanceModel(); |
674 | 20 | if (VD) { |
675 | 12 | FieldOffset = getASTContext().getFieldOffset(VD); |
676 | 12 | assert(FieldOffset % getASTContext().getCharWidth() == 0 && |
677 | 12 | "cannot take address of bitfield"); |
678 | 0 | FieldOffset /= getASTContext().getCharWidth(); |
679 | | |
680 | 12 | VBTableOffset = 0; |
681 | | |
682 | 12 | if (IM == MSInheritanceModel::Virtual) |
683 | 2 | FieldOffset -= getASTContext().getOffsetOfBaseWithVBPtr(RD).getQuantity(); |
684 | 12 | } else { |
685 | 8 | FieldOffset = RD->nullFieldOffsetIsZero() ? 04 : -14 ; |
686 | | |
687 | 8 | VBTableOffset = -1; |
688 | 8 | } |
689 | | |
690 | 0 | char Code = '\0'; |
691 | 20 | switch (IM) { |
692 | 6 | case MSInheritanceModel::Single: Code = '0'; break; |
693 | 6 | case MSInheritanceModel::Multiple: Code = '0'; break; |
694 | 3 | case MSInheritanceModel::Virtual: Code = 'F'; break; |
695 | 5 | case MSInheritanceModel::Unspecified: Code = 'G'; break; |
696 | 20 | } |
697 | | |
698 | 20 | Out << Prefix << Code; |
699 | | |
700 | 20 | mangleNumber(FieldOffset); |
701 | | |
702 | | // The C++ standard doesn't allow base-to-derived member pointer conversions |
703 | | // in template parameter contexts, so the vbptr offset of data member pointers |
704 | | // is always zero. |
705 | 20 | if (inheritanceModelHasVBPtrOffsetField(IM)) |
706 | 5 | mangleNumber(0); |
707 | 20 | if (inheritanceModelHasVBTableOffsetField(IM)) |
708 | 8 | mangleNumber(VBTableOffset); |
709 | 20 | } |
710 | | |
711 | | void |
712 | | MicrosoftCXXNameMangler::mangleMemberFunctionPointer(const CXXRecordDecl *RD, |
713 | | const CXXMethodDecl *MD, |
714 | 19 | StringRef Prefix) { |
715 | | // <member-function-pointer> ::= $1? <name> |
716 | | // ::= $H? <name> <number> |
717 | | // ::= $I? <name> <number> <number> |
718 | | // ::= $J? <name> <number> <number> <number> |
719 | | |
720 | 19 | MSInheritanceModel IM = RD->getMSInheritanceModel(); |
721 | | |
722 | 19 | char Code = '\0'; |
723 | 19 | switch (IM) { |
724 | 7 | case MSInheritanceModel::Single: Code = '1'; break; |
725 | 4 | case MSInheritanceModel::Multiple: Code = 'H'; break; |
726 | 4 | case MSInheritanceModel::Virtual: Code = 'I'; break; |
727 | 4 | case MSInheritanceModel::Unspecified: Code = 'J'; break; |
728 | 19 | } |
729 | | |
730 | | // If non-virtual, mangle the name. If virtual, mangle as a virtual memptr |
731 | | // thunk. |
732 | 19 | uint64_t NVOffset = 0; |
733 | 19 | uint64_t VBTableOffset = 0; |
734 | 19 | uint64_t VBPtrOffset = 0; |
735 | 19 | if (MD) { |
736 | 15 | Out << Prefix << Code << '?'; |
737 | 15 | if (MD->isVirtual()) { |
738 | 9 | MicrosoftVTableContext *VTContext = |
739 | 9 | cast<MicrosoftVTableContext>(getASTContext().getVTableContext()); |
740 | 9 | MethodVFTableLocation ML = |
741 | 9 | VTContext->getMethodVFTableLocation(GlobalDecl(MD)); |
742 | 9 | mangleVirtualMemPtrThunk(MD, ML); |
743 | 9 | NVOffset = ML.VFPtrOffset.getQuantity(); |
744 | 9 | VBTableOffset = ML.VBTableIndex * 4; |
745 | 9 | if (ML.VBase) { |
746 | 1 | const ASTRecordLayout &Layout = getASTContext().getASTRecordLayout(RD); |
747 | 1 | VBPtrOffset = Layout.getVBPtrOffset().getQuantity(); |
748 | 1 | } |
749 | 9 | } else { |
750 | 6 | mangleName(MD); |
751 | 6 | mangleFunctionEncoding(MD, /*ShouldMangle=*/true); |
752 | 6 | } |
753 | | |
754 | 15 | if (VBTableOffset == 0 && IM == MSInheritanceModel::Virtual14 ) |
755 | 3 | NVOffset -= getASTContext().getOffsetOfBaseWithVBPtr(RD).getQuantity(); |
756 | 15 | } else { |
757 | | // Null single inheritance member functions are encoded as a simple nullptr. |
758 | 4 | if (IM == MSInheritanceModel::Single) { |
759 | 1 | Out << Prefix << "0A@"; |
760 | 1 | return; |
761 | 1 | } |
762 | 3 | if (IM == MSInheritanceModel::Unspecified) |
763 | 1 | VBTableOffset = -1; |
764 | 3 | Out << Prefix << Code; |
765 | 3 | } |
766 | | |
767 | 18 | if (inheritanceModelHasNVOffsetField(/*IsMemberFunction=*/true, IM)) |
768 | 12 | mangleNumber(static_cast<uint32_t>(NVOffset)); |
769 | 18 | if (inheritanceModelHasVBPtrOffsetField(IM)) |
770 | 4 | mangleNumber(VBPtrOffset); |
771 | 18 | if (inheritanceModelHasVBTableOffsetField(IM)) |
772 | 8 | mangleNumber(VBTableOffset); |
773 | 18 | } |
774 | | |
775 | | void MicrosoftCXXNameMangler::mangleVirtualMemPtrThunk( |
776 | 64 | const CXXMethodDecl *MD, const MethodVFTableLocation &ML) { |
777 | | // Get the vftable offset. |
778 | 64 | CharUnits PointerWidth = getASTContext().toCharUnitsFromBits( |
779 | 64 | getASTContext().getTargetInfo().getPointerWidth(0)); |
780 | 64 | uint64_t OffsetInVFTable = ML.Index * PointerWidth.getQuantity(); |
781 | | |
782 | 64 | Out << "?_9"; |
783 | 64 | mangleName(MD->getParent()); |
784 | 64 | Out << "$B"; |
785 | 64 | mangleNumber(OffsetInVFTable); |
786 | 64 | Out << 'A'; |
787 | 64 | mangleCallingConvention(MD->getType()->castAs<FunctionProtoType>()); |
788 | 64 | } |
789 | | |
790 | 41.9k | void MicrosoftCXXNameMangler::mangleName(GlobalDecl GD) { |
791 | | // <name> ::= <unscoped-name> {[<named-scope>]+ | [<nested-name>]}? @ |
792 | | |
793 | | // Always start with the unqualified name. |
794 | 41.9k | mangleUnqualifiedName(GD); |
795 | | |
796 | 41.9k | mangleNestedName(GD); |
797 | | |
798 | | // Terminate the whole name with an '@'. |
799 | 41.9k | Out << '@'; |
800 | 41.9k | } |
801 | | |
802 | 4.97k | void MicrosoftCXXNameMangler::mangleNumber(int64_t Number) { |
803 | 4.97k | mangleNumber(llvm::APSInt(llvm::APInt(64, Number), /*IsUnsigned*/false)); |
804 | 4.97k | } |
805 | | |
806 | 5.86k | void MicrosoftCXXNameMangler::mangleNumber(llvm::APSInt Number) { |
807 | | // MSVC never mangles any integer wider than 64 bits. In general it appears |
808 | | // to convert every integer to signed 64 bit before mangling (including |
809 | | // unsigned 64 bit values). Do the same, but preserve bits beyond the bottom |
810 | | // 64. |
811 | 5.86k | unsigned Width = std::max(Number.getBitWidth(), 64U); |
812 | 5.86k | llvm::APInt Value = Number.extend(Width); |
813 | | |
814 | | // <non-negative integer> ::= A@ # when Number == 0 |
815 | | // ::= <decimal digit> # when 1 <= Number <= 10 |
816 | | // ::= <hex digit>+ @ # when Number >= 10 |
817 | | // |
818 | | // <number> ::= [?] <non-negative integer> |
819 | | |
820 | 5.86k | if (Value.isNegative()) { |
821 | 472 | Value = -Value; |
822 | 472 | Out << '?'; |
823 | 472 | } |
824 | 5.86k | mangleBits(Value); |
825 | 5.86k | } |
826 | | |
827 | 38 | void MicrosoftCXXNameMangler::mangleFloat(llvm::APFloat Number) { |
828 | 38 | using llvm::APFloat; |
829 | | |
830 | 38 | switch (APFloat::SemanticsToEnum(Number.getSemantics())) { |
831 | 26 | case APFloat::S_IEEEsingle: Out << 'A'; break; |
832 | 12 | case APFloat::S_IEEEdouble: Out << 'B'; break; |
833 | | |
834 | | // The following are all Clang extensions. We try to pick manglings that are |
835 | | // unlikely to conflict with MSVC's scheme. |
836 | 0 | case APFloat::S_IEEEhalf: Out << 'V'; break; |
837 | 0 | case APFloat::S_BFloat: Out << 'W'; break; |
838 | 0 | case APFloat::S_x87DoubleExtended: Out << 'X'; break; |
839 | 0 | case APFloat::S_IEEEquad: Out << 'Y'; break; |
840 | 0 | case APFloat::S_PPCDoubleDouble: Out << 'Z'; break; |
841 | 38 | } |
842 | | |
843 | 38 | mangleBits(Number.bitcastToAPInt()); |
844 | 38 | } |
845 | | |
846 | 5.90k | void MicrosoftCXXNameMangler::mangleBits(llvm::APInt Value) { |
847 | 5.90k | if (Value == 0) |
848 | 1.27k | Out << "A@"; |
849 | 4.63k | else if (Value.uge(1) && Value.ule(10)) |
850 | 2.51k | Out << (Value - 1); |
851 | 2.11k | else { |
852 | | // Numbers that are not encoded as decimal digits are represented as nibbles |
853 | | // in the range of ASCII characters 'A' to 'P'. |
854 | | // The number 0x123450 would be encoded as 'BCDEFA' |
855 | 2.11k | llvm::SmallString<32> EncodedNumberBuffer; |
856 | 12.8k | for (; Value != 0; Value.lshrInPlace(4)10.7k ) |
857 | 10.7k | EncodedNumberBuffer.push_back('A' + (Value & 0xf).getZExtValue()); |
858 | 2.11k | std::reverse(EncodedNumberBuffer.begin(), EncodedNumberBuffer.end()); |
859 | 2.11k | Out.write(EncodedNumberBuffer.data(), EncodedNumberBuffer.size()); |
860 | 2.11k | Out << '@'; |
861 | 2.11k | } |
862 | 5.90k | } |
863 | | |
864 | | static GlobalDecl isTemplate(GlobalDecl GD, |
865 | 60.1k | const TemplateArgumentList *&TemplateArgs) { |
866 | 60.1k | const NamedDecl *ND = cast<NamedDecl>(GD.getDecl()); |
867 | | // Check if we have a function template. |
868 | 60.1k | if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(ND)) { |
869 | 24.6k | if (const TemplateDecl *TD = FD->getPrimaryTemplate()) { |
870 | 896 | TemplateArgs = FD->getTemplateSpecializationArgs(); |
871 | 896 | return GD.getWithDecl(TD); |
872 | 896 | } |
873 | 24.6k | } |
874 | | |
875 | | // Check if we have a class template. |
876 | 59.2k | if (const ClassTemplateSpecializationDecl *Spec = |
877 | 59.2k | dyn_cast<ClassTemplateSpecializationDecl>(ND)) { |
878 | 4.87k | TemplateArgs = &Spec->getTemplateArgs(); |
879 | 4.87k | return GD.getWithDecl(Spec->getSpecializedTemplate()); |
880 | 4.87k | } |
881 | | |
882 | | // Check if we have a variable template. |
883 | 54.4k | if (const VarTemplateSpecializationDecl *Spec = |
884 | 54.4k | dyn_cast<VarTemplateSpecializationDecl>(ND)) { |
885 | 218 | TemplateArgs = &Spec->getTemplateArgs(); |
886 | 218 | return GD.getWithDecl(Spec->getSpecializedTemplate()); |
887 | 218 | } |
888 | | |
889 | 54.2k | return GlobalDecl(); |
890 | 54.4k | } |
891 | | |
892 | | void MicrosoftCXXNameMangler::mangleUnqualifiedName(GlobalDecl GD, |
893 | 60.1k | DeclarationName Name) { |
894 | 60.1k | const NamedDecl *ND = cast<NamedDecl>(GD.getDecl()); |
895 | | // <unqualified-name> ::= <operator-name> |
896 | | // ::= <ctor-dtor-name> |
897 | | // ::= <source-name> |
898 | | // ::= <template-name> |
899 | | |
900 | | // Check if we have a template. |
901 | 60.1k | const TemplateArgumentList *TemplateArgs = nullptr; |
902 | 60.1k | if (GlobalDecl TD = isTemplate(GD, TemplateArgs)) { |
903 | | // Function templates aren't considered for name back referencing. This |
904 | | // makes sense since function templates aren't likely to occur multiple |
905 | | // times in a symbol. |
906 | 5.98k | if (isa<FunctionTemplateDecl>(TD.getDecl())) { |
907 | 896 | mangleTemplateInstantiationName(TD, *TemplateArgs); |
908 | 896 | Out << '@'; |
909 | 896 | return; |
910 | 896 | } |
911 | | |
912 | | // Here comes the tricky thing: if we need to mangle something like |
913 | | // void foo(A::X<Y>, B::X<Y>), |
914 | | // the X<Y> part is aliased. However, if you need to mangle |
915 | | // void foo(A::X<A::Y>, A::X<B::Y>), |
916 | | // the A::X<> part is not aliased. |
917 | | // That is, from the mangler's perspective we have a structure like this: |
918 | | // namespace[s] -> type[ -> template-parameters] |
919 | | // but from the Clang perspective we have |
920 | | // type [ -> template-parameters] |
921 | | // \-> namespace[s] |
922 | | // What we do is we create a new mangler, mangle the same type (without |
923 | | // a namespace suffix) to a string using the extra mangler and then use |
924 | | // the mangled type name as a key to check the mangling of different types |
925 | | // for aliasing. |
926 | | |
927 | | // It's important to key cache reads off ND, not TD -- the same TD can |
928 | | // be used with different TemplateArgs, but ND uniquely identifies |
929 | | // TD / TemplateArg pairs. |
930 | 5.09k | ArgBackRefMap::iterator Found = TemplateArgBackReferences.find(ND); |
931 | 5.09k | if (Found == TemplateArgBackReferences.end()) { |
932 | | |
933 | 2.71k | TemplateArgStringMap::iterator Found = TemplateArgStrings.find(ND); |
934 | 2.71k | if (Found == TemplateArgStrings.end()) { |
935 | | // Mangle full template name into temporary buffer. |
936 | 2.70k | llvm::SmallString<64> TemplateMangling; |
937 | 2.70k | llvm::raw_svector_ostream Stream(TemplateMangling); |
938 | 2.70k | MicrosoftCXXNameMangler Extra(Context, Stream); |
939 | 2.70k | Extra.mangleTemplateInstantiationName(TD, *TemplateArgs); |
940 | | |
941 | | // Use the string backref vector to possibly get a back reference. |
942 | 2.70k | mangleSourceName(TemplateMangling); |
943 | | |
944 | | // Memoize back reference for this type if one exist, else memoize |
945 | | // the mangling itself. |
946 | 2.70k | BackRefVec::iterator StringFound = |
947 | 2.70k | llvm::find(NameBackReferences, TemplateMangling); |
948 | 2.70k | if (StringFound != NameBackReferences.end()) { |
949 | 2.70k | TemplateArgBackReferences[ND] = |
950 | 2.70k | StringFound - NameBackReferences.begin(); |
951 | 2.70k | } else { |
952 | 1 | TemplateArgStrings[ND] = |
953 | 1 | TemplateArgStringStorage.save(TemplateMangling.str()); |
954 | 1 | } |
955 | 2.70k | } else { |
956 | 1 | Out << Found->second << '@'; // Outputs a StringRef. |
957 | 1 | } |
958 | 2.71k | } else { |
959 | 2.38k | Out << Found->second; // Outputs a back reference (an int). |
960 | 2.38k | } |
961 | 5.09k | return; |
962 | 5.98k | } |
963 | | |
964 | 54.2k | switch (Name.getNameKind()) { |
965 | 50.6k | case DeclarationName::Identifier: { |
966 | 50.6k | if (const IdentifierInfo *II = Name.getAsIdentifierInfo()) { |
967 | 50.0k | bool IsDeviceStub = |
968 | 50.0k | ND && |
969 | 50.0k | ((isa<FunctionDecl>(ND) && ND->hasAttr<CUDAGlobalAttr>()20.1k ) || |
970 | 50.0k | (49.9k isa<FunctionTemplateDecl>(ND)49.9k && |
971 | 49.9k | cast<FunctionTemplateDecl>(ND) |
972 | 872 | ->getTemplatedDecl() |
973 | 872 | ->hasAttr<CUDAGlobalAttr>())) && |
974 | 50.0k | GD.getKernelReferenceKind() == KernelReferenceKind::Stub24 ; |
975 | 50.0k | if (IsDeviceStub) |
976 | 12 | mangleSourceName( |
977 | 12 | (llvm::Twine("__device_stub__") + II->getName()).str()); |
978 | 49.9k | else |
979 | 49.9k | mangleSourceName(II->getName()); |
980 | 50.0k | break; |
981 | 50.0k | } |
982 | | |
983 | | // Otherwise, an anonymous entity. We must have a declaration. |
984 | 637 | assert(ND && "mangling empty name without declaration"); |
985 | | |
986 | 637 | if (const NamespaceDecl *NS = dyn_cast<NamespaceDecl>(ND)) { |
987 | 299 | if (NS->isAnonymousNamespace()) { |
988 | 299 | Out << "?A0x" << Context.getAnonymousNamespaceHash() << '@'; |
989 | 299 | break; |
990 | 299 | } |
991 | 299 | } |
992 | | |
993 | 338 | if (const DecompositionDecl *DD = dyn_cast<DecompositionDecl>(ND)) { |
994 | | // Decomposition declarations are considered anonymous, and get |
995 | | // numbered with a $S prefix. |
996 | 12 | llvm::SmallString<64> Name("$S"); |
997 | | // Get a unique id for the anonymous struct. |
998 | 12 | Name += llvm::utostr(Context.getAnonymousStructId(DD) + 1); |
999 | 12 | mangleSourceName(Name); |
1000 | 12 | break; |
1001 | 12 | } |
1002 | | |
1003 | 326 | if (const VarDecl *VD = dyn_cast<VarDecl>(ND)) { |
1004 | | // We must have an anonymous union or struct declaration. |
1005 | 8 | const CXXRecordDecl *RD = VD->getType()->getAsCXXRecordDecl(); |
1006 | 8 | assert(RD && "expected variable decl to have a record type"); |
1007 | | // Anonymous types with no tag or typedef get the name of their |
1008 | | // declarator mangled in. If they have no declarator, number them with |
1009 | | // a $S prefix. |
1010 | 0 | llvm::SmallString<64> Name("$S"); |
1011 | | // Get a unique id for the anonymous struct. |
1012 | 8 | Name += llvm::utostr(Context.getAnonymousStructId(RD) + 1); |
1013 | 8 | mangleSourceName(Name.str()); |
1014 | 8 | break; |
1015 | 8 | } |
1016 | | |
1017 | 318 | if (const MSGuidDecl *GD = dyn_cast<MSGuidDecl>(ND)) { |
1018 | | // Mangle a GUID object as if it were a variable with the corresponding |
1019 | | // mangled name. |
1020 | 20 | SmallString<sizeof("_GUID_12345678_1234_1234_1234_1234567890ab")> GUID; |
1021 | 20 | llvm::raw_svector_ostream GUIDOS(GUID); |
1022 | 20 | Context.mangleMSGuidDecl(GD, GUIDOS); |
1023 | 20 | mangleSourceName(GUID); |
1024 | 20 | break; |
1025 | 20 | } |
1026 | | |
1027 | 298 | if (const auto *TPO = dyn_cast<TemplateParamObjectDecl>(ND)) { |
1028 | 3 | Out << "?__N"; |
1029 | 3 | mangleTemplateArgValue(TPO->getType().getUnqualifiedType(), |
1030 | 3 | TPO->getValue()); |
1031 | 3 | break; |
1032 | 3 | } |
1033 | | |
1034 | | // We must have an anonymous struct. |
1035 | 295 | const TagDecl *TD = cast<TagDecl>(ND); |
1036 | 295 | if (const TypedefNameDecl *D = TD->getTypedefNameForAnonDecl()) { |
1037 | 19 | assert(TD->getDeclContext() == D->getDeclContext() && |
1038 | 19 | "Typedef should not be in another decl context!"); |
1039 | 0 | assert(D->getDeclName().getAsIdentifierInfo() && |
1040 | 19 | "Typedef was not named!"); |
1041 | 0 | mangleSourceName(D->getDeclName().getAsIdentifierInfo()->getName()); |
1042 | 19 | break; |
1043 | 19 | } |
1044 | | |
1045 | 276 | if (const CXXRecordDecl *Record = dyn_cast<CXXRecordDecl>(TD)) { |
1046 | 242 | if (Record->isLambda()) { |
1047 | 184 | llvm::SmallString<10> Name("<lambda_"); |
1048 | | |
1049 | 184 | Decl *LambdaContextDecl = Record->getLambdaContextDecl(); |
1050 | 184 | unsigned LambdaManglingNumber = Record->getLambdaManglingNumber(); |
1051 | 184 | unsigned LambdaId; |
1052 | 184 | const ParmVarDecl *Parm = |
1053 | 184 | dyn_cast_or_null<ParmVarDecl>(LambdaContextDecl); |
1054 | 184 | const FunctionDecl *Func = |
1055 | 184 | Parm ? dyn_cast<FunctionDecl>(Parm->getDeclContext())30 : nullptr154 ; |
1056 | | |
1057 | 184 | if (Func) { |
1058 | 30 | unsigned DefaultArgNo = |
1059 | 30 | Func->getNumParams() - Parm->getFunctionScopeIndex(); |
1060 | 30 | Name += llvm::utostr(DefaultArgNo); |
1061 | 30 | Name += "_"; |
1062 | 30 | } |
1063 | | |
1064 | 184 | if (LambdaManglingNumber) |
1065 | 131 | LambdaId = LambdaManglingNumber; |
1066 | 53 | else |
1067 | 53 | LambdaId = Context.getLambdaId(Record); |
1068 | | |
1069 | 184 | Name += llvm::utostr(LambdaId); |
1070 | 184 | Name += ">"; |
1071 | | |
1072 | 184 | mangleSourceName(Name); |
1073 | | |
1074 | | // If the context is a variable or a class member and not a parameter, |
1075 | | // it is encoded in a qualified name. |
1076 | 184 | if (LambdaManglingNumber && LambdaContextDecl131 ) { |
1077 | 52 | if ((isa<VarDecl>(LambdaContextDecl) || |
1078 | 52 | isa<FieldDecl>(LambdaContextDecl)14 ) && |
1079 | 52 | !isa<ParmVarDecl>(LambdaContextDecl)) { |
1080 | 22 | mangleUnqualifiedName(cast<NamedDecl>(LambdaContextDecl)); |
1081 | 22 | } |
1082 | 52 | } |
1083 | 184 | break; |
1084 | 184 | } |
1085 | 242 | } |
1086 | | |
1087 | 92 | llvm::SmallString<64> Name; |
1088 | 92 | if (DeclaratorDecl *DD = |
1089 | 92 | Context.getASTContext().getDeclaratorForUnnamedTagDecl(TD)) { |
1090 | | // Anonymous types without a name for linkage purposes have their |
1091 | | // declarator mangled in if they have one. |
1092 | 58 | Name += "<unnamed-type-"; |
1093 | 58 | Name += DD->getName(); |
1094 | 58 | } else if (TypedefNameDecl *34 TND34 = |
1095 | 34 | Context.getASTContext().getTypedefNameForUnnamedTagDecl( |
1096 | 34 | TD)) { |
1097 | | // Anonymous types without a name for linkage purposes have their |
1098 | | // associate typedef mangled in if they have one. |
1099 | 8 | Name += "<unnamed-type-"; |
1100 | 8 | Name += TND->getName(); |
1101 | 26 | } else if (isa<EnumDecl>(TD) && |
1102 | 26 | cast<EnumDecl>(TD)->enumerator_begin() != |
1103 | 11 | cast<EnumDecl>(TD)->enumerator_end()) { |
1104 | | // Anonymous non-empty enums mangle in the first enumerator. |
1105 | 7 | auto *ED = cast<EnumDecl>(TD); |
1106 | 7 | Name += "<unnamed-enum-"; |
1107 | 7 | Name += ED->enumerator_begin()->getName(); |
1108 | 19 | } else { |
1109 | | // Otherwise, number the types using a $S prefix. |
1110 | 19 | Name += "<unnamed-type-$S"; |
1111 | 19 | Name += llvm::utostr(Context.getAnonymousStructId(TD) + 1); |
1112 | 19 | } |
1113 | 92 | Name += ">"; |
1114 | 92 | mangleSourceName(Name.str()); |
1115 | 92 | break; |
1116 | 276 | } |
1117 | | |
1118 | 0 | case DeclarationName::ObjCZeroArgSelector: |
1119 | 0 | case DeclarationName::ObjCOneArgSelector: |
1120 | 0 | case DeclarationName::ObjCMultiArgSelector: { |
1121 | | // This is reachable only when constructing an outlined SEH finally |
1122 | | // block. Nothing depends on this mangling and it's used only with |
1123 | | // functinos with internal linkage. |
1124 | 0 | llvm::SmallString<64> Name; |
1125 | 0 | mangleSourceName(Name.str()); |
1126 | 0 | break; |
1127 | 0 | } |
1128 | | |
1129 | 1.63k | case DeclarationName::CXXConstructorName: |
1130 | 1.63k | if (isStructorDecl(ND)) { |
1131 | 1.62k | if (StructorType == Ctor_CopyingClosure) { |
1132 | 9 | Out << "?_O"; |
1133 | 9 | return; |
1134 | 9 | } |
1135 | 1.61k | if (StructorType == Ctor_DefaultClosure) { |
1136 | 32 | Out << "?_F"; |
1137 | 32 | return; |
1138 | 32 | } |
1139 | 1.61k | } |
1140 | 1.59k | Out << "?0"; |
1141 | 1.59k | return; |
1142 | | |
1143 | 861 | case DeclarationName::CXXDestructorName: |
1144 | 861 | if (isStructorDecl(ND)) |
1145 | | // If the named decl is the C++ destructor we're mangling, |
1146 | | // use the type we were given. |
1147 | 857 | mangleCXXDtorType(static_cast<CXXDtorType>(StructorType)); |
1148 | 4 | else |
1149 | | // Otherwise, use the base destructor name. This is relevant if a |
1150 | | // class with a destructor is declared within a destructor. |
1151 | 4 | mangleCXXDtorType(Dtor_Base); |
1152 | 861 | break; |
1153 | | |
1154 | 34 | case DeclarationName::CXXConversionFunctionName: |
1155 | | // <operator-name> ::= ?B # (cast) |
1156 | | // The target type is encoded as the return type. |
1157 | 34 | Out << "?B"; |
1158 | 34 | break; |
1159 | | |
1160 | 1.03k | case DeclarationName::CXXOperatorName: |
1161 | 1.03k | mangleOperatorName(Name.getCXXOverloadedOperator(), ND->getLocation()); |
1162 | 1.03k | break; |
1163 | | |
1164 | 6 | case DeclarationName::CXXLiteralOperatorName: { |
1165 | 6 | Out << "?__K"; |
1166 | 6 | mangleSourceName(Name.getCXXLiteralIdentifier()->getName()); |
1167 | 6 | break; |
1168 | 1.63k | } |
1169 | | |
1170 | 0 | case DeclarationName::CXXDeductionGuideName: |
1171 | 0 | llvm_unreachable("Can't mangle a deduction guide name!"); |
1172 | |
|
1173 | 0 | case DeclarationName::CXXUsingDirective: |
1174 | 0 | llvm_unreachable("Can't mangle a using directive name!"); |
1175 | 54.2k | } |
1176 | 54.2k | } |
1177 | | |
1178 | | // <postfix> ::= <unqualified-name> [<postfix>] |
1179 | | // ::= <substitution> [<postfix>] |
1180 | 41.9k | void MicrosoftCXXNameMangler::mangleNestedName(GlobalDecl GD) { |
1181 | 41.9k | const NamedDecl *ND = cast<NamedDecl>(GD.getDecl()); |
1182 | 41.9k | const DeclContext *DC = getEffectiveDeclContext(ND); |
1183 | 56.6k | while (!DC->isTranslationUnit()) { |
1184 | 15.2k | if (isa<TagDecl>(ND) || isa<VarDecl>(ND)7.95k ) { |
1185 | 8.53k | unsigned Disc; |
1186 | 8.53k | if (Context.getNextDiscriminator(ND, Disc)) { |
1187 | 596 | Out << '?'; |
1188 | 596 | mangleNumber(Disc); |
1189 | 596 | Out << '?'; |
1190 | 596 | } |
1191 | 8.53k | } |
1192 | | |
1193 | 15.2k | if (const BlockDecl *BD = dyn_cast<BlockDecl>(DC)) { |
1194 | 58 | auto Discriminate = |
1195 | 58 | [](StringRef Name, const unsigned Discriminator, |
1196 | 116 | const unsigned ParameterDiscriminator) -> std::string { |
1197 | 116 | std::string Buffer; |
1198 | 116 | llvm::raw_string_ostream Stream(Buffer); |
1199 | 116 | Stream << Name; |
1200 | 116 | if (Discriminator) |
1201 | 112 | Stream << '_' << Discriminator; |
1202 | 116 | if (ParameterDiscriminator) |
1203 | 32 | Stream << '_' << ParameterDiscriminator; |
1204 | 116 | return Stream.str(); |
1205 | 116 | }; |
1206 | | |
1207 | 58 | unsigned Discriminator = BD->getBlockManglingNumber(); |
1208 | 58 | if (!Discriminator) |
1209 | 18 | Discriminator = Context.getBlockId(BD, /*Local=*/false); |
1210 | | |
1211 | | // Mangle the parameter position as a discriminator to deal with unnamed |
1212 | | // parameters. Rather than mangling the unqualified parameter name, |
1213 | | // always use the position to give a uniform mangling. |
1214 | 58 | unsigned ParameterDiscriminator = 0; |
1215 | 58 | if (const auto *MC = BD->getBlockManglingContextDecl()) |
1216 | 28 | if (const auto *P = dyn_cast<ParmVarDecl>(MC)) |
1217 | 16 | if (const auto *F = dyn_cast<FunctionDecl>(P->getDeclContext())) |
1218 | 16 | ParameterDiscriminator = |
1219 | 16 | F->getNumParams() - P->getFunctionScopeIndex(); |
1220 | | |
1221 | 58 | DC = getEffectiveDeclContext(BD); |
1222 | | |
1223 | 58 | Out << '?'; |
1224 | 58 | mangleSourceName(Discriminate("_block_invoke", Discriminator, |
1225 | 58 | ParameterDiscriminator)); |
1226 | | // If we have a block mangling context, encode that now. This allows us |
1227 | | // to discriminate between named static data initializers in the same |
1228 | | // scope. This is handled differently from parameters, which use |
1229 | | // positions to discriminate between multiple instances. |
1230 | 58 | if (const auto *MC = BD->getBlockManglingContextDecl()) |
1231 | 28 | if (!isa<ParmVarDecl>(MC)) |
1232 | 12 | if (const auto *ND = dyn_cast<NamedDecl>(MC)) |
1233 | 12 | mangleUnqualifiedName(ND); |
1234 | | // MS ABI and Itanium manglings are in inverted scopes. In the case of a |
1235 | | // RecordDecl, mangle the entire scope hierarchy at this point rather than |
1236 | | // just the unqualified name to get the ordering correct. |
1237 | 58 | if (const auto *RD = dyn_cast<RecordDecl>(DC)) |
1238 | 12 | mangleName(RD); |
1239 | 46 | else |
1240 | 46 | Out << '@'; |
1241 | | // void __cdecl |
1242 | 58 | Out << "YAX"; |
1243 | | // struct __block_literal * |
1244 | 58 | Out << 'P'; |
1245 | | // __ptr64 |
1246 | 58 | if (PointersAre64Bit) |
1247 | 29 | Out << 'E'; |
1248 | 58 | Out << 'A'; |
1249 | 58 | mangleArtificialTagType(TTK_Struct, |
1250 | 58 | Discriminate("__block_literal", Discriminator, |
1251 | 58 | ParameterDiscriminator)); |
1252 | 58 | Out << "@Z"; |
1253 | | |
1254 | | // If the effective context was a Record, we have fully mangled the |
1255 | | // qualified name and do not need to continue. |
1256 | 58 | if (isa<RecordDecl>(DC)) |
1257 | 12 | break; |
1258 | 46 | continue; |
1259 | 15.1k | } else if (const ObjCMethodDecl *Method = dyn_cast<ObjCMethodDecl>(DC)) { |
1260 | 0 | mangleObjCMethodName(Method); |
1261 | 15.1k | } else if (isa<NamedDecl>(DC)) { |
1262 | 15.1k | ND = cast<NamedDecl>(DC); |
1263 | 15.1k | if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(ND)) { |
1264 | 538 | mangle(getGlobalDeclAsDeclContext(FD), "?"); |
1265 | 538 | break; |
1266 | 14.6k | } else { |
1267 | 14.6k | mangleUnqualifiedName(ND); |
1268 | | // Lambdas in default arguments conceptually belong to the function the |
1269 | | // parameter corresponds to. |
1270 | 14.6k | if (const auto *LDADC = getLambdaDefaultArgumentDeclContext(ND)) { |
1271 | 26 | DC = LDADC; |
1272 | 26 | continue; |
1273 | 26 | } |
1274 | 14.6k | } |
1275 | 15.1k | } |
1276 | 14.6k | DC = DC->getParent(); |
1277 | 14.6k | } |
1278 | 41.9k | } |
1279 | | |
1280 | 861 | void MicrosoftCXXNameMangler::mangleCXXDtorType(CXXDtorType T) { |
1281 | | // Microsoft uses the names on the case labels for these dtor variants. Clang |
1282 | | // uses the Itanium terminology internally. Everything in this ABI delegates |
1283 | | // towards the base dtor. |
1284 | 861 | switch (T) { |
1285 | | // <operator-name> ::= ?1 # destructor |
1286 | 525 | case Dtor_Base: Out << "?1"; return; |
1287 | | // <operator-name> ::= ?_D # vbase destructor |
1288 | 120 | case Dtor_Complete: Out << "?_D"; return; |
1289 | | // <operator-name> ::= ?_G # scalar deleting destructor |
1290 | 216 | case Dtor_Deleting: Out << "?_G"; return; |
1291 | | // <operator-name> ::= ?_E # vector deleting destructor |
1292 | | // FIXME: Add a vector deleting dtor type. It goes in the vtable, so we need |
1293 | | // it. |
1294 | 0 | case Dtor_Comdat: |
1295 | 0 | llvm_unreachable("not expecting a COMDAT"); |
1296 | 861 | } |
1297 | 0 | llvm_unreachable("Unsupported dtor type?"); |
1298 | 0 | } |
1299 | | |
1300 | | void MicrosoftCXXNameMangler::mangleOperatorName(OverloadedOperatorKind OO, |
1301 | 1.03k | SourceLocation Loc) { |
1302 | 1.03k | switch (OO) { |
1303 | | // ?0 # constructor |
1304 | | // ?1 # destructor |
1305 | | // <operator-name> ::= ?2 # new |
1306 | 67 | case OO_New: Out << "?2"; break; |
1307 | | // <operator-name> ::= ?3 # delete |
1308 | 114 | case OO_Delete: Out << "?3"; break; |
1309 | | // <operator-name> ::= ?4 # = |
1310 | 629 | case OO_Equal: Out << "?4"; break; |
1311 | | // <operator-name> ::= ?5 # >> |
1312 | 4 | case OO_GreaterGreater: Out << "?5"; break; |
1313 | | // <operator-name> ::= ?6 # << |
1314 | 4 | case OO_LessLess: Out << "?6"; break; |
1315 | | // <operator-name> ::= ?7 # ! |
1316 | 0 | case OO_Exclaim: Out << "?7"; break; |
1317 | | // <operator-name> ::= ?8 # == |
1318 | 5 | case OO_EqualEqual: Out << "?8"; break; |
1319 | | // <operator-name> ::= ?9 # != |
1320 | 0 | case OO_ExclaimEqual: Out << "?9"; break; |
1321 | | // <operator-name> ::= ?A # [] |
1322 | 2 | case OO_Subscript: Out << "?A"; break; |
1323 | | // ?B # conversion |
1324 | | // <operator-name> ::= ?C # -> |
1325 | 3 | case OO_Arrow: Out << "?C"; break; |
1326 | | // <operator-name> ::= ?D # * |
1327 | 3 | case OO_Star: Out << "?D"; break; |
1328 | | // <operator-name> ::= ?E # ++ |
1329 | 1 | case OO_PlusPlus: Out << "?E"; break; |
1330 | | // <operator-name> ::= ?F # -- |
1331 | 0 | case OO_MinusMinus: Out << "?F"; break; |
1332 | | // <operator-name> ::= ?G # - |
1333 | 0 | case OO_Minus: Out << "?G"; break; |
1334 | | // <operator-name> ::= ?H # + |
1335 | 16 | case OO_Plus: Out << "?H"; break; |
1336 | | // <operator-name> ::= ?I # & |
1337 | 1 | case OO_Amp: Out << "?I"; break; |
1338 | | // <operator-name> ::= ?J # ->* |
1339 | 4 | case OO_ArrowStar: Out << "?J"; break; |
1340 | | // <operator-name> ::= ?K # / |
1341 | 0 | case OO_Slash: Out << "?K"; break; |
1342 | | // <operator-name> ::= ?L # % |
1343 | 0 | case OO_Percent: Out << "?L"; break; |
1344 | | // <operator-name> ::= ?M # < |
1345 | 0 | case OO_Less: Out << "?M"; break; |
1346 | | // <operator-name> ::= ?N # <= |
1347 | 0 | case OO_LessEqual: Out << "?N"; break; |
1348 | | // <operator-name> ::= ?O # > |
1349 | 0 | case OO_Greater: Out << "?O"; break; |
1350 | | // <operator-name> ::= ?P # >= |
1351 | 0 | case OO_GreaterEqual: Out << "?P"; break; |
1352 | | // <operator-name> ::= ?Q # , |
1353 | 4 | case OO_Comma: Out << "?Q"; break; |
1354 | | // <operator-name> ::= ?R # () |
1355 | 100 | case OO_Call: Out << "?R"; break; |
1356 | | // <operator-name> ::= ?S # ~ |
1357 | 0 | case OO_Tilde: Out << "?S"; break; |
1358 | | // <operator-name> ::= ?T # ^ |
1359 | 0 | case OO_Caret: Out << "?T"; break; |
1360 | | // <operator-name> ::= ?U # | |
1361 | 0 | case OO_Pipe: Out << "?U"; break; |
1362 | | // <operator-name> ::= ?V # && |
1363 | 4 | case OO_AmpAmp: Out << "?V"; break; |
1364 | | // <operator-name> ::= ?W # || |
1365 | 4 | case OO_PipePipe: Out << "?W"; break; |
1366 | | // <operator-name> ::= ?X # *= |
1367 | 0 | case OO_StarEqual: Out << "?X"; break; |
1368 | | // <operator-name> ::= ?Y # += |
1369 | 6 | case OO_PlusEqual: Out << "?Y"; break; |
1370 | | // <operator-name> ::= ?Z # -= |
1371 | 0 | case OO_MinusEqual: Out << "?Z"; break; |
1372 | | // <operator-name> ::= ?_0 # /= |
1373 | 0 | case OO_SlashEqual: Out << "?_0"; break; |
1374 | | // <operator-name> ::= ?_1 # %= |
1375 | 0 | case OO_PercentEqual: Out << "?_1"; break; |
1376 | | // <operator-name> ::= ?_2 # >>= |
1377 | 0 | case OO_GreaterGreaterEqual: Out << "?_2"; break; |
1378 | | // <operator-name> ::= ?_3 # <<= |
1379 | 0 | case OO_LessLessEqual: Out << "?_3"; break; |
1380 | | // <operator-name> ::= ?_4 # &= |
1381 | 0 | case OO_AmpEqual: Out << "?_4"; break; |
1382 | | // <operator-name> ::= ?_5 # |= |
1383 | 0 | case OO_PipeEqual: Out << "?_5"; break; |
1384 | | // <operator-name> ::= ?_6 # ^= |
1385 | 0 | case OO_CaretEqual: Out << "?_6"; break; |
1386 | | // ?_7 # vftable |
1387 | | // ?_8 # vbtable |
1388 | | // ?_9 # vcall |
1389 | | // ?_A # typeof |
1390 | | // ?_B # local static guard |
1391 | | // ?_C # string |
1392 | | // ?_D # vbase destructor |
1393 | | // ?_E # vector deleting destructor |
1394 | | // ?_F # default constructor closure |
1395 | | // ?_G # scalar deleting destructor |
1396 | | // ?_H # vector constructor iterator |
1397 | | // ?_I # vector destructor iterator |
1398 | | // ?_J # vector vbase constructor iterator |
1399 | | // ?_K # virtual displacement map |
1400 | | // ?_L # eh vector constructor iterator |
1401 | | // ?_M # eh vector destructor iterator |
1402 | | // ?_N # eh vector vbase constructor iterator |
1403 | | // ?_O # copy constructor closure |
1404 | | // ?_P<name> # udt returning <name> |
1405 | | // ?_Q # <unknown> |
1406 | | // ?_R0 # RTTI Type Descriptor |
1407 | | // ?_R1 # RTTI Base Class Descriptor at (a,b,c,d) |
1408 | | // ?_R2 # RTTI Base Class Array |
1409 | | // ?_R3 # RTTI Class Hierarchy Descriptor |
1410 | | // ?_R4 # RTTI Complete Object Locator |
1411 | | // ?_S # local vftable |
1412 | | // ?_T # local vftable constructor closure |
1413 | | // <operator-name> ::= ?_U # new[] |
1414 | 27 | case OO_Array_New: Out << "?_U"; break; |
1415 | | // <operator-name> ::= ?_V # delete[] |
1416 | 26 | case OO_Array_Delete: Out << "?_V"; break; |
1417 | | // <operator-name> ::= ?__L # co_await |
1418 | 4 | case OO_Coawait: Out << "?__L"; break; |
1419 | | // <operator-name> ::= ?__M # <=> |
1420 | 6 | case OO_Spaceship: Out << "?__M"; break; |
1421 | | |
1422 | 0 | case OO_Conditional: { |
1423 | 0 | DiagnosticsEngine &Diags = Context.getDiags(); |
1424 | 0 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, |
1425 | 0 | "cannot mangle this conditional operator yet"); |
1426 | 0 | Diags.Report(Loc, DiagID); |
1427 | 0 | break; |
1428 | 0 | } |
1429 | | |
1430 | 0 | case OO_None: |
1431 | 0 | case NUM_OVERLOADED_OPERATORS: |
1432 | 0 | llvm_unreachable("Not an overloaded operator"); |
1433 | 1.03k | } |
1434 | 1.03k | } |
1435 | | |
1436 | 79.5k | void MicrosoftCXXNameMangler::mangleSourceName(StringRef Name) { |
1437 | | // <source name> ::= <identifier> @ |
1438 | 79.5k | BackRefVec::iterator Found = llvm::find(NameBackReferences, Name); |
1439 | 79.5k | if (Found == NameBackReferences.end()) { |
1440 | 66.7k | if (NameBackReferences.size() < 10) |
1441 | 66.7k | NameBackReferences.push_back(std::string(Name)); |
1442 | 66.7k | Out << Name << '@'; |
1443 | 66.7k | } else { |
1444 | 12.8k | Out << (Found - NameBackReferences.begin()); |
1445 | 12.8k | } |
1446 | 79.5k | } |
1447 | | |
1448 | 0 | void MicrosoftCXXNameMangler::mangleObjCMethodName(const ObjCMethodDecl *MD) { |
1449 | 0 | Context.mangleObjCMethodNameAsSourceName(MD, Out); |
1450 | 0 | } |
1451 | | |
1452 | | void MicrosoftCXXNameMangler::mangleTemplateInstantiationName( |
1453 | 3.60k | GlobalDecl GD, const TemplateArgumentList &TemplateArgs) { |
1454 | | // <template-name> ::= <unscoped-template-name> <template-args> |
1455 | | // ::= <substitution> |
1456 | | // Always start with the unqualified name. |
1457 | | |
1458 | | // Templates have their own context for back references. |
1459 | 3.60k | ArgBackRefMap OuterFunArgsContext; |
1460 | 3.60k | ArgBackRefMap OuterTemplateArgsContext; |
1461 | 3.60k | BackRefVec OuterTemplateContext; |
1462 | 3.60k | PassObjectSizeArgsSet OuterPassObjectSizeArgs; |
1463 | 3.60k | NameBackReferences.swap(OuterTemplateContext); |
1464 | 3.60k | FunArgBackReferences.swap(OuterFunArgsContext); |
1465 | 3.60k | TemplateArgBackReferences.swap(OuterTemplateArgsContext); |
1466 | 3.60k | PassObjectSizeArgs.swap(OuterPassObjectSizeArgs); |
1467 | | |
1468 | 3.60k | mangleUnscopedTemplateName(GD); |
1469 | 3.60k | mangleTemplateArgs(cast<TemplateDecl>(GD.getDecl()), TemplateArgs); |
1470 | | |
1471 | | // Restore the previous back reference contexts. |
1472 | 3.60k | NameBackReferences.swap(OuterTemplateContext); |
1473 | 3.60k | FunArgBackReferences.swap(OuterFunArgsContext); |
1474 | 3.60k | TemplateArgBackReferences.swap(OuterTemplateArgsContext); |
1475 | 3.60k | PassObjectSizeArgs.swap(OuterPassObjectSizeArgs); |
1476 | 3.60k | } |
1477 | | |
1478 | 3.60k | void MicrosoftCXXNameMangler::mangleUnscopedTemplateName(GlobalDecl GD) { |
1479 | | // <unscoped-template-name> ::= ?$ <unqualified-name> |
1480 | 3.60k | Out << "?$"; |
1481 | 3.60k | mangleUnqualifiedName(GD); |
1482 | 3.60k | } |
1483 | | |
1484 | | void MicrosoftCXXNameMangler::mangleIntegerLiteral( |
1485 | | const llvm::APSInt &Value, const NonTypeTemplateParmDecl *PD, |
1486 | 672 | QualType TemplateArgType) { |
1487 | | // <integer-literal> ::= $0 <number> |
1488 | 672 | Out << "$"; |
1489 | | |
1490 | | // Since MSVC 2019, add 'M[<type>]' after '$' for auto template parameter when |
1491 | | // argument is integer. |
1492 | 672 | if (getASTContext().getLangOpts().isCompatibleWithMSVC( |
1493 | 672 | LangOptions::MSVC2019) && |
1494 | 672 | PD27 && PD->getType()->getTypeClass() == Type::Auto27 && |
1495 | 672 | !TemplateArgType.isNull()11 ) { |
1496 | 11 | Out << "M"; |
1497 | 11 | mangleType(TemplateArgType, SourceRange(), QMM_Drop); |
1498 | 11 | } |
1499 | | |
1500 | 672 | Out << "0"; |
1501 | | |
1502 | 672 | mangleNumber(Value); |
1503 | 672 | } |
1504 | | |
1505 | | void MicrosoftCXXNameMangler::mangleExpression( |
1506 | 0 | const Expr *E, const NonTypeTemplateParmDecl *PD) { |
1507 | | // See if this is a constant expression. |
1508 | 0 | if (Optional<llvm::APSInt> Value = |
1509 | 0 | E->getIntegerConstantExpr(Context.getASTContext())) { |
1510 | 0 | mangleIntegerLiteral(*Value, PD, E->getType()); |
1511 | 0 | return; |
1512 | 0 | } |
1513 | | |
1514 | | // As bad as this diagnostic is, it's better than crashing. |
1515 | 0 | DiagnosticsEngine &Diags = Context.getDiags(); |
1516 | 0 | unsigned DiagID = Diags.getCustomDiagID( |
1517 | 0 | DiagnosticsEngine::Error, "cannot yet mangle expression type %0"); |
1518 | 0 | Diags.Report(E->getExprLoc(), DiagID) << E->getStmtClassName() |
1519 | 0 | << E->getSourceRange(); |
1520 | 0 | } |
1521 | | |
1522 | | void MicrosoftCXXNameMangler::mangleTemplateArgs( |
1523 | 3.60k | const TemplateDecl *TD, const TemplateArgumentList &TemplateArgs) { |
1524 | | // <template-args> ::= <template-arg>+ |
1525 | 3.60k | const TemplateParameterList *TPL = TD->getTemplateParameters(); |
1526 | 3.60k | assert(TPL->size() == TemplateArgs.size() && |
1527 | 3.60k | "size mismatch between args and parms!"); |
1528 | | |
1529 | 11.2k | for (size_t i = 0; i < TemplateArgs.size(); ++i7.69k ) { |
1530 | 7.69k | const TemplateArgument &TA = TemplateArgs[i]; |
1531 | | |
1532 | | // Separate consecutive packs by $$Z. |
1533 | 7.69k | if (i > 0 && TA.getKind() == TemplateArgument::Pack4.08k && |
1534 | 7.69k | TemplateArgs[i - 1].getKind() == TemplateArgument::Pack17 ) |
1535 | 8 | Out << "$$Z"; |
1536 | | |
1537 | 7.69k | mangleTemplateArg(TD, TA, TPL->getParam(i)); |
1538 | 7.69k | } |
1539 | 3.60k | } |
1540 | | |
1541 | | void MicrosoftCXXNameMangler::mangleTemplateArg(const TemplateDecl *TD, |
1542 | | const TemplateArgument &TA, |
1543 | 7.83k | const NamedDecl *Parm) { |
1544 | | // <template-arg> ::= <type> |
1545 | | // ::= <integer-literal> |
1546 | | // ::= <member-data-pointer> |
1547 | | // ::= <member-function-pointer> |
1548 | | // ::= $ <constant-value> |
1549 | | // ::= <template-args> |
1550 | | // |
1551 | | // <constant-value> ::= 0 <number> # integer |
1552 | | // ::= 1 <mangled-name> # address of D |
1553 | | // ::= 2 <type> <typed-constant-value>* @ # struct |
1554 | | // ::= 3 <type> <constant-value>* @ # array |
1555 | | // ::= 4 ??? # string |
1556 | | // ::= 5 <constant-value> @ # address of subobject |
1557 | | // ::= 6 <constant-value> <unqualified-name> @ # a.b |
1558 | | // ::= 7 <type> [<unqualified-name> <constant-value>] @ |
1559 | | // # union, with or without an active member |
1560 | | // # pointer to member, symbolically |
1561 | | // ::= 8 <class> <unqualified-name> @ |
1562 | | // ::= A <type> <non-negative integer> # float |
1563 | | // ::= B <type> <non-negative integer> # double |
1564 | | // ::= E <mangled-name> # reference to D |
1565 | | // # pointer to member, by component value |
1566 | | // ::= F <number> <number> |
1567 | | // ::= G <number> <number> <number> |
1568 | | // ::= H <mangled-name> <number> |
1569 | | // ::= I <mangled-name> <number> <number> |
1570 | | // ::= J <mangled-name> <number> <number> <number> |
1571 | | // |
1572 | | // <typed-constant-value> ::= [<type>] <constant-value> |
1573 | | // |
1574 | | // The <type> appears to be included in a <typed-constant-value> only in the |
1575 | | // '0', '1', '8', 'A', 'B', and 'E' cases. |
1576 | | |
1577 | 7.83k | switch (TA.getKind()) { |
1578 | 0 | case TemplateArgument::Null: |
1579 | 0 | llvm_unreachable("Can't mangle null template arguments!"); |
1580 | 0 | case TemplateArgument::TemplateExpansion: |
1581 | 0 | llvm_unreachable("Can't mangle template expansion arguments!"); |
1582 | 7.25k | case TemplateArgument::Type: { |
1583 | 7.25k | QualType T = TA.getAsType(); |
1584 | 7.25k | mangleType(T, SourceRange(), QMM_Escape); |
1585 | 7.25k | break; |
1586 | 0 | } |
1587 | 132 | case TemplateArgument::Declaration: { |
1588 | 132 | const NamedDecl *ND = TA.getAsDecl(); |
1589 | 132 | if (isa<FieldDecl>(ND) || isa<IndirectFieldDecl>(ND)123 ) { |
1590 | 11 | mangleMemberDataPointer(cast<CXXRecordDecl>(ND->getDeclContext()) |
1591 | 11 | ->getMostRecentNonInjectedDecl(), |
1592 | 11 | cast<ValueDecl>(ND)); |
1593 | 121 | } else if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(ND)) { |
1594 | 37 | const CXXMethodDecl *MD = dyn_cast<CXXMethodDecl>(FD); |
1595 | 37 | if (MD && MD->isInstance()17 ) { |
1596 | 15 | mangleMemberFunctionPointer( |
1597 | 15 | MD->getParent()->getMostRecentNonInjectedDecl(), MD); |
1598 | 22 | } else { |
1599 | 22 | Out << "$1?"; |
1600 | 22 | mangleName(FD); |
1601 | 22 | mangleFunctionEncoding(FD, /*ShouldMangle=*/true); |
1602 | 22 | } |
1603 | 84 | } else if (TA.getParamTypeForDecl()->isRecordType()) { |
1604 | 55 | Out << "$"; |
1605 | 55 | auto *TPO = cast<TemplateParamObjectDecl>(ND); |
1606 | 55 | mangleTemplateArgValue(TPO->getType().getUnqualifiedType(), |
1607 | 55 | TPO->getValue()); |
1608 | 55 | } else { |
1609 | 29 | mangle(ND, TA.getParamTypeForDecl()->isReferenceType() ? "$E?"10 : "$1?"19 ); |
1610 | 29 | } |
1611 | 132 | break; |
1612 | 0 | } |
1613 | 340 | case TemplateArgument::Integral: { |
1614 | 340 | QualType T = TA.getIntegralType(); |
1615 | 340 | mangleIntegerLiteral(TA.getAsIntegral(), |
1616 | 340 | cast<NonTypeTemplateParmDecl>(Parm), T); |
1617 | 340 | break; |
1618 | 0 | } |
1619 | 23 | case TemplateArgument::NullPtr: { |
1620 | 23 | QualType T = TA.getNullPtrType(); |
1621 | 23 | if (const MemberPointerType *MPT = T->getAs<MemberPointerType>()) { |
1622 | 19 | const CXXRecordDecl *RD = MPT->getMostRecentCXXRecordDecl(); |
1623 | 19 | if (MPT->isMemberFunctionPointerType() && |
1624 | 19 | !isa<FunctionTemplateDecl>(TD)8 ) { |
1625 | 4 | mangleMemberFunctionPointer(RD, nullptr); |
1626 | 4 | return; |
1627 | 4 | } |
1628 | 15 | if (MPT->isMemberDataPointer()) { |
1629 | 11 | if (!isa<FunctionTemplateDecl>(TD)) { |
1630 | 6 | mangleMemberDataPointer(RD, nullptr); |
1631 | 6 | return; |
1632 | 6 | } |
1633 | | // nullptr data pointers are always represented with a single field |
1634 | | // which is initialized with either 0 or -1. Why -1? Well, we need to |
1635 | | // distinguish the case where the data member is at offset zero in the |
1636 | | // record. |
1637 | | // However, we are free to use 0 *if* we would use multiple fields for |
1638 | | // non-nullptr member pointers. |
1639 | 5 | if (!RD->nullFieldOffsetIsZero()) { |
1640 | 1 | mangleIntegerLiteral(llvm::APSInt::get(-1), |
1641 | 1 | cast<NonTypeTemplateParmDecl>(Parm), T); |
1642 | 1 | return; |
1643 | 1 | } |
1644 | 5 | } |
1645 | 15 | } |
1646 | 12 | mangleIntegerLiteral(llvm::APSInt::getUnsigned(0), |
1647 | 12 | cast<NonTypeTemplateParmDecl>(Parm), T); |
1648 | 12 | break; |
1649 | 23 | } |
1650 | 0 | case TemplateArgument::Expression: |
1651 | 0 | mangleExpression(TA.getAsExpr(), cast<NonTypeTemplateParmDecl>(Parm)); |
1652 | 0 | break; |
1653 | 62 | case TemplateArgument::Pack: { |
1654 | 62 | ArrayRef<TemplateArgument> TemplateArgs = TA.getPackAsArray(); |
1655 | 62 | if (TemplateArgs.empty()) { |
1656 | 13 | if (isa<TemplateTypeParmDecl>(Parm) || |
1657 | 13 | isa<TemplateTemplateParmDecl>(Parm)6 ) |
1658 | | // MSVC 2015 changed the mangling for empty expanded template packs, |
1659 | | // use the old mangling for link compatibility for old versions. |
1660 | 10 | Out << (Context.getASTContext().getLangOpts().isCompatibleWithMSVC( |
1661 | 10 | LangOptions::MSVC2015) |
1662 | 10 | ? "$$V"6 |
1663 | 10 | : "$$$V"4 ); |
1664 | 3 | else if (isa<NonTypeTemplateParmDecl>(Parm)) |
1665 | 3 | Out << "$S"; |
1666 | 0 | else |
1667 | 0 | llvm_unreachable("unexpected template parameter decl!"); |
1668 | 49 | } else { |
1669 | 49 | for (const TemplateArgument &PA : TemplateArgs) |
1670 | 140 | mangleTemplateArg(TD, PA, Parm); |
1671 | 49 | } |
1672 | 62 | break; |
1673 | 23 | } |
1674 | 19 | case TemplateArgument::Template: { |
1675 | 19 | const NamedDecl *ND = |
1676 | 19 | TA.getAsTemplate().getAsTemplateDecl()->getTemplatedDecl(); |
1677 | 19 | if (const auto *TD = dyn_cast<TagDecl>(ND)) { |
1678 | 16 | mangleType(TD); |
1679 | 16 | } else if (3 isa<TypeAliasDecl>(ND)3 ) { |
1680 | 3 | Out << "$$Y"; |
1681 | 3 | mangleName(ND); |
1682 | 3 | } else { |
1683 | 0 | llvm_unreachable("unexpected template template NamedDecl!"); |
1684 | 0 | } |
1685 | 19 | break; |
1686 | 23 | } |
1687 | 7.83k | } |
1688 | 7.83k | } |
1689 | | |
1690 | | void MicrosoftCXXNameMangler::mangleTemplateArgValue(QualType T, |
1691 | | const APValue &V, |
1692 | 348 | bool WithScalarType) { |
1693 | 348 | switch (V.getKind()) { |
1694 | 0 | case APValue::None: |
1695 | 0 | case APValue::Indeterminate: |
1696 | | // FIXME: MSVC doesn't allow this, so we can't be sure how it should be |
1697 | | // mangled. |
1698 | 0 | if (WithScalarType) |
1699 | 0 | mangleType(T, SourceRange(), QMM_Escape); |
1700 | 0 | Out << '@'; |
1701 | 0 | return; |
1702 | | |
1703 | 202 | case APValue::Int: |
1704 | 202 | if (WithScalarType) |
1705 | 58 | mangleType(T, SourceRange(), QMM_Escape); |
1706 | 202 | Out << '0'; |
1707 | 202 | mangleNumber(V.getInt()); |
1708 | 202 | return; |
1709 | | |
1710 | 22 | case APValue::Float: |
1711 | 22 | if (WithScalarType) |
1712 | 15 | mangleType(T, SourceRange(), QMM_Escape); |
1713 | 22 | mangleFloat(V.getFloat()); |
1714 | 22 | return; |
1715 | | |
1716 | 8 | case APValue::LValue: { |
1717 | 8 | if (WithScalarType) |
1718 | 8 | mangleType(T, SourceRange(), QMM_Escape); |
1719 | | |
1720 | | // We don't know how to mangle past-the-end pointers yet. |
1721 | 8 | if (V.isLValueOnePastTheEnd()) |
1722 | 0 | break; |
1723 | | |
1724 | 8 | APValue::LValueBase Base = V.getLValueBase(); |
1725 | 8 | if (!V.hasLValuePath() || V.getLValuePath().empty()7 ) { |
1726 | | // Taking the address of a complete object has a special-case mangling. |
1727 | 5 | if (Base.isNull()) { |
1728 | | // MSVC emits 0A@ for null pointers. Generalize this for arbitrary |
1729 | | // integers cast to pointers. |
1730 | | // FIXME: This mangles 0 cast to a pointer the same as a null pointer, |
1731 | | // even in cases where the two are different values. |
1732 | 4 | Out << "0"; |
1733 | 4 | mangleNumber(V.getLValueOffset().getQuantity()); |
1734 | 4 | } else if (1 !V.hasLValuePath()1 ) { |
1735 | | // FIXME: This can only happen as an extension. Invent a mangling. |
1736 | 0 | break; |
1737 | 1 | } else if (auto *VD = Base.dyn_cast<const ValueDecl*>()) { |
1738 | 1 | Out << (T->isReferenceType() ? "E"0 : "1"); |
1739 | 1 | mangle(VD); |
1740 | 1 | } else { |
1741 | 0 | break; |
1742 | 0 | } |
1743 | 5 | } else { |
1744 | 3 | unsigned NumAts = 0; |
1745 | 3 | if (T->isPointerType()) { |
1746 | 2 | Out << "5"; |
1747 | 2 | ++NumAts; |
1748 | 2 | } |
1749 | | |
1750 | 3 | QualType T = Base.getType(); |
1751 | 3 | for (APValue::LValuePathEntry E : V.getLValuePath()) { |
1752 | | // We don't know how to mangle array subscripting yet. |
1753 | 3 | if (T->isArrayType()) |
1754 | 0 | goto mangling_unknown; |
1755 | | |
1756 | 3 | const Decl *D = E.getAsBaseOrMember().getPointer(); |
1757 | 3 | auto *FD = dyn_cast<FieldDecl>(D); |
1758 | | // We don't know how to mangle derived-to-base conversions yet. |
1759 | 3 | if (!FD) |
1760 | 0 | goto mangling_unknown; |
1761 | | |
1762 | 3 | Out << "6"; |
1763 | 3 | ++NumAts; |
1764 | 3 | T = FD->getType(); |
1765 | 3 | } |
1766 | | |
1767 | 3 | auto *VD = Base.dyn_cast<const ValueDecl*>(); |
1768 | 3 | if (!VD) |
1769 | 0 | break; |
1770 | 3 | Out << "E"; |
1771 | 3 | mangle(VD); |
1772 | | |
1773 | 3 | for (APValue::LValuePathEntry E : V.getLValuePath()) { |
1774 | 3 | const Decl *D = E.getAsBaseOrMember().getPointer(); |
1775 | 3 | mangleUnqualifiedName(cast<FieldDecl>(D)); |
1776 | 3 | } |
1777 | 8 | for (unsigned I = 0; I != NumAts; ++I5 ) |
1778 | 5 | Out << '@'; |
1779 | 3 | } |
1780 | | |
1781 | 8 | return; |
1782 | 8 | } |
1783 | | |
1784 | 8 | case APValue::MemberPointer: { |
1785 | 3 | if (WithScalarType) |
1786 | 3 | mangleType(T, SourceRange(), QMM_Escape); |
1787 | | |
1788 | | // FIXME: The below manglings don't include a conversion, so bail if there |
1789 | | // would be one. MSVC mangles the (possibly converted) value of the |
1790 | | // pointer-to-member object as if it were a struct, leading to collisions |
1791 | | // in some cases. |
1792 | 3 | if (!V.getMemberPointerPath().empty()) |
1793 | 0 | break; |
1794 | | |
1795 | 3 | const CXXRecordDecl *RD = |
1796 | 3 | T->castAs<MemberPointerType>()->getMostRecentCXXRecordDecl(); |
1797 | 3 | const ValueDecl *D = V.getMemberPointerDecl(); |
1798 | 3 | if (T->isMemberDataPointerType()) |
1799 | 3 | mangleMemberDataPointer(RD, D, ""); |
1800 | 0 | else |
1801 | 0 | mangleMemberFunctionPointer(RD, cast_or_null<CXXMethodDecl>(D), ""); |
1802 | 3 | return; |
1803 | 3 | } |
1804 | | |
1805 | 64 | case APValue::Struct: { |
1806 | 64 | Out << '2'; |
1807 | 64 | mangleType(T, SourceRange(), QMM_Escape); |
1808 | 64 | const CXXRecordDecl *RD = T->getAsCXXRecordDecl(); |
1809 | 64 | assert(RD && "unexpected type for record value"); |
1810 | | |
1811 | 0 | unsigned BaseIndex = 0; |
1812 | 64 | for (const CXXBaseSpecifier &B : RD->bases()) |
1813 | 10 | mangleTemplateArgValue(B.getType(), V.getStructBase(BaseIndex++)); |
1814 | 64 | for (const FieldDecl *FD : RD->fields()) |
1815 | 133 | if (!FD->isUnnamedBitfield()) |
1816 | 121 | mangleTemplateArgValue(FD->getType(), |
1817 | 121 | V.getStructField(FD->getFieldIndex()), |
1818 | 121 | /*WithScalarType*/ true); |
1819 | 64 | Out << '@'; |
1820 | 64 | return; |
1821 | 3 | } |
1822 | | |
1823 | 10 | case APValue::Union: |
1824 | 10 | Out << '7'; |
1825 | 10 | mangleType(T, SourceRange(), QMM_Escape); |
1826 | 10 | if (const FieldDecl *FD = V.getUnionField()) { |
1827 | 6 | mangleUnqualifiedName(FD); |
1828 | 6 | mangleTemplateArgValue(FD->getType(), V.getUnionValue()); |
1829 | 6 | } |
1830 | 10 | Out << '@'; |
1831 | 10 | return; |
1832 | | |
1833 | 8 | case APValue::ComplexInt: |
1834 | | // We mangle complex types as structs, so mangle the value as a struct too. |
1835 | 8 | Out << '2'; |
1836 | 8 | mangleType(T, SourceRange(), QMM_Escape); |
1837 | 8 | Out << '0'; |
1838 | 8 | mangleNumber(V.getComplexIntReal()); |
1839 | 8 | Out << '0'; |
1840 | 8 | mangleNumber(V.getComplexIntImag()); |
1841 | 8 | Out << '@'; |
1842 | 8 | return; |
1843 | | |
1844 | 8 | case APValue::ComplexFloat: |
1845 | 8 | Out << '2'; |
1846 | 8 | mangleType(T, SourceRange(), QMM_Escape); |
1847 | 8 | mangleFloat(V.getComplexFloatReal()); |
1848 | 8 | mangleFloat(V.getComplexFloatImag()); |
1849 | 8 | Out << '@'; |
1850 | 8 | return; |
1851 | | |
1852 | 12 | case APValue::Array: { |
1853 | 12 | Out << '3'; |
1854 | 12 | QualType ElemT = getASTContext().getAsArrayType(T)->getElementType(); |
1855 | 12 | mangleType(ElemT, SourceRange(), QMM_Escape); |
1856 | 133 | for (unsigned I = 0, N = V.getArraySize(); I != N; ++I121 ) { |
1857 | 121 | const APValue &ElemV = I < V.getArrayInitializedElts() |
1858 | 121 | ? V.getArrayInitializedElt(I)52 |
1859 | 121 | : V.getArrayFiller()69 ; |
1860 | 121 | mangleTemplateArgValue(ElemT, ElemV); |
1861 | 121 | Out << '@'; |
1862 | 121 | } |
1863 | 12 | Out << '@'; |
1864 | 12 | return; |
1865 | 3 | } |
1866 | | |
1867 | 11 | case APValue::Vector: { |
1868 | | // __m128 is mangled as a struct containing an array. We follow this |
1869 | | // approach for all vector types. |
1870 | 11 | Out << '2'; |
1871 | 11 | mangleType(T, SourceRange(), QMM_Escape); |
1872 | 11 | Out << '3'; |
1873 | 11 | QualType ElemT = T->castAs<VectorType>()->getElementType(); |
1874 | 11 | mangleType(ElemT, SourceRange(), QMM_Escape); |
1875 | 43 | for (unsigned I = 0, N = V.getVectorLength(); I != N; ++I32 ) { |
1876 | 32 | const APValue &ElemV = V.getVectorElt(I); |
1877 | 32 | mangleTemplateArgValue(ElemT, ElemV); |
1878 | 32 | Out << '@'; |
1879 | 32 | } |
1880 | 11 | Out << "@@"; |
1881 | 11 | return; |
1882 | 3 | } |
1883 | | |
1884 | 0 | case APValue::AddrLabelDiff: |
1885 | 0 | case APValue::FixedPoint: |
1886 | 0 | break; |
1887 | 348 | } |
1888 | | |
1889 | 0 | mangling_unknown: |
1890 | 0 | DiagnosticsEngine &Diags = Context.getDiags(); |
1891 | 0 | unsigned DiagID = Diags.getCustomDiagID( |
1892 | 0 | DiagnosticsEngine::Error, "cannot mangle this template argument yet"); |
1893 | 0 | Diags.Report(DiagID); |
1894 | 0 | } |
1895 | | |
1896 | 15 | void MicrosoftCXXNameMangler::mangleObjCProtocol(const ObjCProtocolDecl *PD) { |
1897 | 15 | llvm::SmallString<64> TemplateMangling; |
1898 | 15 | llvm::raw_svector_ostream Stream(TemplateMangling); |
1899 | 15 | MicrosoftCXXNameMangler Extra(Context, Stream); |
1900 | | |
1901 | 15 | Stream << "?$"; |
1902 | 15 | Extra.mangleSourceName("Protocol"); |
1903 | 15 | Extra.mangleArtificialTagType(TTK_Struct, PD->getName()); |
1904 | | |
1905 | 15 | mangleArtificialTagType(TTK_Struct, TemplateMangling, {"__ObjC"}); |
1906 | 15 | } |
1907 | | |
1908 | | void MicrosoftCXXNameMangler::mangleObjCLifetime(const QualType Type, |
1909 | | Qualifiers Quals, |
1910 | 9 | SourceRange Range) { |
1911 | 9 | llvm::SmallString<64> TemplateMangling; |
1912 | 9 | llvm::raw_svector_ostream Stream(TemplateMangling); |
1913 | 9 | MicrosoftCXXNameMangler Extra(Context, Stream); |
1914 | | |
1915 | 9 | Stream << "?$"; |
1916 | 9 | switch (Quals.getObjCLifetime()) { |
1917 | 0 | case Qualifiers::OCL_None: |
1918 | 0 | case Qualifiers::OCL_ExplicitNone: |
1919 | 0 | break; |
1920 | 2 | case Qualifiers::OCL_Autoreleasing: |
1921 | 2 | Extra.mangleSourceName("Autoreleasing"); |
1922 | 2 | break; |
1923 | 4 | case Qualifiers::OCL_Strong: |
1924 | 4 | Extra.mangleSourceName("Strong"); |
1925 | 4 | break; |
1926 | 3 | case Qualifiers::OCL_Weak: |
1927 | 3 | Extra.mangleSourceName("Weak"); |
1928 | 3 | break; |
1929 | 9 | } |
1930 | 9 | Extra.manglePointerCVQualifiers(Quals); |
1931 | 9 | Extra.manglePointerExtQualifiers(Quals, Type); |
1932 | 9 | Extra.mangleType(Type, Range); |
1933 | | |
1934 | 9 | mangleArtificialTagType(TTK_Struct, TemplateMangling, {"__ObjC"}); |
1935 | 9 | } |
1936 | | |
1937 | | void MicrosoftCXXNameMangler::mangleObjCKindOfType(const ObjCObjectType *T, |
1938 | | Qualifiers Quals, |
1939 | 7 | SourceRange Range) { |
1940 | 7 | llvm::SmallString<64> TemplateMangling; |
1941 | 7 | llvm::raw_svector_ostream Stream(TemplateMangling); |
1942 | 7 | MicrosoftCXXNameMangler Extra(Context, Stream); |
1943 | | |
1944 | 7 | Stream << "?$"; |
1945 | 7 | Extra.mangleSourceName("KindOf"); |
1946 | 7 | Extra.mangleType(QualType(T, 0) |
1947 | 7 | .stripObjCKindOfType(getASTContext()) |
1948 | 7 | ->castAs<ObjCObjectType>(), |
1949 | 7 | Quals, Range); |
1950 | | |
1951 | 7 | mangleArtificialTagType(TTK_Struct, TemplateMangling, {"__ObjC"}); |
1952 | 7 | } |
1953 | | |
1954 | | void MicrosoftCXXNameMangler::mangleQualifiers(Qualifiers Quals, |
1955 | 28.1k | bool IsMember) { |
1956 | | // <cvr-qualifiers> ::= [E] [F] [I] <base-cvr-qualifiers> |
1957 | | // 'E' means __ptr64 (32-bit only); 'F' means __unaligned (32/64-bit only); |
1958 | | // 'I' means __restrict (32/64-bit). |
1959 | | // Note that the MSVC __restrict keyword isn't the same as the C99 restrict |
1960 | | // keyword! |
1961 | | // <base-cvr-qualifiers> ::= A # near |
1962 | | // ::= B # near const |
1963 | | // ::= C # near volatile |
1964 | | // ::= D # near const volatile |
1965 | | // ::= E # far (16-bit) |
1966 | | // ::= F # far const (16-bit) |
1967 | | // ::= G # far volatile (16-bit) |
1968 | | // ::= H # far const volatile (16-bit) |
1969 | | // ::= I # huge (16-bit) |
1970 | | // ::= J # huge const (16-bit) |
1971 | | // ::= K # huge volatile (16-bit) |
1972 | | // ::= L # huge const volatile (16-bit) |
1973 | | // ::= M <basis> # based |
1974 | | // ::= N <basis> # based const |
1975 | | // ::= O <basis> # based volatile |
1976 | | // ::= P <basis> # based const volatile |
1977 | | // ::= Q # near member |
1978 | | // ::= R # near const member |
1979 | | // ::= S # near volatile member |
1980 | | // ::= T # near const volatile member |
1981 | | // ::= U # far member (16-bit) |
1982 | | // ::= V # far const member (16-bit) |
1983 | | // ::= W # far volatile member (16-bit) |
1984 | | // ::= X # far const volatile member (16-bit) |
1985 | | // ::= Y # huge member (16-bit) |
1986 | | // ::= Z # huge const member (16-bit) |
1987 | | // ::= 0 # huge volatile member (16-bit) |
1988 | | // ::= 1 # huge const volatile member (16-bit) |
1989 | | // ::= 2 <basis> # based member |
1990 | | // ::= 3 <basis> # based const member |
1991 | | // ::= 4 <basis> # based volatile member |
1992 | | // ::= 5 <basis> # based const volatile member |
1993 | | // ::= 6 # near function (pointers only) |
1994 | | // ::= 7 # far function (pointers only) |
1995 | | // ::= 8 # near method (pointers only) |
1996 | | // ::= 9 # far method (pointers only) |
1997 | | // ::= _A <basis> # based function (pointers only) |
1998 | | // ::= _B <basis> # based function (far?) (pointers only) |
1999 | | // ::= _C <basis> # based method (pointers only) |
2000 | | // ::= _D <basis> # based method (far?) (pointers only) |
2001 | | // ::= _E # block (Clang) |
2002 | | // <basis> ::= 0 # __based(void) |
2003 | | // ::= 1 # __based(segment)? |
2004 | | // ::= 2 <name> # __based(name) |
2005 | | // ::= 3 # ? |
2006 | | // ::= 4 # ? |
2007 | | // ::= 5 # not really based |
2008 | 28.1k | bool HasConst = Quals.hasConst(), |
2009 | 28.1k | HasVolatile = Quals.hasVolatile(); |
2010 | | |
2011 | 28.1k | if (!IsMember) { |
2012 | 27.8k | if (HasConst && HasVolatile3.47k ) { |
2013 | 29 | Out << 'D'; |
2014 | 27.8k | } else if (HasVolatile) { |
2015 | 90 | Out << 'C'; |
2016 | 27.7k | } else if (HasConst) { |
2017 | 3.45k | Out << 'B'; |
2018 | 24.3k | } else { |
2019 | 24.3k | Out << 'A'; |
2020 | 24.3k | } |
2021 | 27.8k | } else { |
2022 | 242 | if (HasConst && HasVolatile15 ) { |
2023 | 6 | Out << 'T'; |
2024 | 236 | } else if (HasVolatile) { |
2025 | 24 | Out << 'S'; |
2026 | 212 | } else if (HasConst) { |
2027 | 9 | Out << 'R'; |
2028 | 203 | } else { |
2029 | 203 | Out << 'Q'; |
2030 | 203 | } |
2031 | 242 | } |
2032 | | |
2033 | | // FIXME: For now, just drop all extension qualifiers on the floor. |
2034 | 28.1k | } |
2035 | | |
2036 | | void |
2037 | 5.90k | MicrosoftCXXNameMangler::mangleRefQualifier(RefQualifierKind RefQualifier) { |
2038 | | // <ref-qualifier> ::= G # lvalue reference |
2039 | | // ::= H # rvalue-reference |
2040 | 5.90k | switch (RefQualifier) { |
2041 | 5.86k | case RQ_None: |
2042 | 5.86k | break; |
2043 | | |
2044 | 19 | case RQ_LValue: |
2045 | 19 | Out << 'G'; |
2046 | 19 | break; |
2047 | | |
2048 | 19 | case RQ_RValue: |
2049 | 19 | Out << 'H'; |
2050 | 19 | break; |
2051 | 5.90k | } |
2052 | 5.90k | } |
2053 | | |
2054 | | void MicrosoftCXXNameMangler::manglePointerExtQualifiers(Qualifiers Quals, |
2055 | 13.2k | QualType PointeeType) { |
2056 | | // Check if this is a default 64-bit pointer or has __ptr64 qualifier. |
2057 | 13.2k | bool is64Bit = PointeeType.isNull() ? PointersAre64Bit6.86k : |
2058 | 13.2k | is64BitPointer(PointeeType.getQualifiers())6.40k ; |
2059 | 13.2k | if (is64Bit && (5.81k PointeeType.isNull()5.81k || !PointeeType->isFunctionType()2.65k )) |
2060 | 5.60k | Out << 'E'; |
2061 | | |
2062 | 13.2k | if (Quals.hasRestrict()) |
2063 | 40 | Out << 'I'; |
2064 | | |
2065 | 13.2k | if (Quals.hasUnaligned() || |
2066 | 13.2k | (13.2k !PointeeType.isNull()13.2k && PointeeType.getLocalQualifiers().hasUnaligned()6.39k )) |
2067 | 40 | Out << 'F'; |
2068 | 13.2k | } |
2069 | | |
2070 | 4.72k | void MicrosoftCXXNameMangler::manglePointerCVQualifiers(Qualifiers Quals) { |
2071 | | // <pointer-cv-qualifiers> ::= P # no qualifiers |
2072 | | // ::= Q # const |
2073 | | // ::= R # volatile |
2074 | | // ::= S # const volatile |
2075 | 4.72k | bool HasConst = Quals.hasConst(), |
2076 | 4.72k | HasVolatile = Quals.hasVolatile(); |
2077 | | |
2078 | 4.72k | if (HasConst && HasVolatile219 ) { |
2079 | 7 | Out << 'S'; |
2080 | 4.71k | } else if (HasVolatile) { |
2081 | 45 | Out << 'R'; |
2082 | 4.67k | } else if (HasConst) { |
2083 | 212 | Out << 'Q'; |
2084 | 4.45k | } else { |
2085 | 4.45k | Out << 'P'; |
2086 | 4.45k | } |
2087 | 4.72k | } |
2088 | | |
2089 | | void MicrosoftCXXNameMangler::mangleFunctionArgumentType(QualType T, |
2090 | 38.5k | SourceRange Range) { |
2091 | | // MSVC will backreference two canonically equivalent types that have slightly |
2092 | | // different manglings when mangled alone. |
2093 | | |
2094 | | // Decayed types do not match up with non-decayed versions of the same type. |
2095 | | // |
2096 | | // e.g. |
2097 | | // void (*x)(void) will not form a backreference with void x(void) |
2098 | 38.5k | void *TypePtr; |
2099 | 38.5k | if (const auto *DT = T->getAs<DecayedType>()) { |
2100 | 165 | QualType OriginalType = DT->getOriginalType(); |
2101 | | // All decayed ArrayTypes should be treated identically; as-if they were |
2102 | | // a decayed IncompleteArrayType. |
2103 | 165 | if (const auto *AT = getASTContext().getAsArrayType(OriginalType)) |
2104 | 83 | OriginalType = getASTContext().getIncompleteArrayType( |
2105 | 83 | AT->getElementType(), AT->getSizeModifier(), |
2106 | 83 | AT->getIndexTypeCVRQualifiers()); |
2107 | | |
2108 | 165 | TypePtr = OriginalType.getCanonicalType().getAsOpaquePtr(); |
2109 | | // If the original parameter was textually written as an array, |
2110 | | // instead treat the decayed parameter like it's const. |
2111 | | // |
2112 | | // e.g. |
2113 | | // int [] -> int * const |
2114 | 165 | if (OriginalType->isArrayType()) |
2115 | 83 | T = T.withConst(); |
2116 | 38.3k | } else { |
2117 | 38.3k | TypePtr = T.getCanonicalType().getAsOpaquePtr(); |
2118 | 38.3k | } |
2119 | | |
2120 | 38.5k | ArgBackRefMap::iterator Found = FunArgBackReferences.find(TypePtr); |
2121 | | |
2122 | 38.5k | if (Found == FunArgBackReferences.end()) { |
2123 | 28.4k | size_t OutSizeBefore = Out.tell(); |
2124 | | |
2125 | 28.4k | mangleType(T, Range, QMM_Drop); |
2126 | | |
2127 | | // See if it's worth creating a back reference. |
2128 | | // Only types longer than 1 character are considered |
2129 | | // and only 10 back references slots are available: |
2130 | 28.4k | bool LongerThanOneChar = (Out.tell() - OutSizeBefore > 1); |
2131 | 28.4k | if (LongerThanOneChar && FunArgBackReferences.size() < 1018.1k ) { |
2132 | 18.1k | size_t Size = FunArgBackReferences.size(); |
2133 | 18.1k | FunArgBackReferences[TypePtr] = Size; |
2134 | 18.1k | } |
2135 | 28.4k | } else { |
2136 | 10.1k | Out << Found->second; |
2137 | 10.1k | } |
2138 | 38.5k | } |
2139 | | |
2140 | | void MicrosoftCXXNameMangler::manglePassObjectSizeArg( |
2141 | 34 | const PassObjectSizeAttr *POSA) { |
2142 | 34 | int Type = POSA->getType(); |
2143 | 34 | bool Dynamic = POSA->isDynamic(); |
2144 | | |
2145 | 34 | auto Iter = PassObjectSizeArgs.insert({Type, Dynamic}).first; |
2146 | 34 | auto *TypePtr = (const void *)&*Iter; |
2147 | 34 | ArgBackRefMap::iterator Found = FunArgBackReferences.find(TypePtr); |
2148 | | |
2149 | 34 | if (Found == FunArgBackReferences.end()) { |
2150 | 31 | std::string Name = |
2151 | 31 | Dynamic ? "__pass_dynamic_object_size"3 : "__pass_object_size"28 ; |
2152 | 31 | mangleArtificialTagType(TTK_Enum, Name + llvm::utostr(Type), {"__clang"}); |
2153 | | |
2154 | 31 | if (FunArgBackReferences.size() < 10) { |
2155 | 31 | size_t Size = FunArgBackReferences.size(); |
2156 | 31 | FunArgBackReferences[TypePtr] = Size; |
2157 | 31 | } |
2158 | 31 | } else { |
2159 | 3 | Out << Found->second; |
2160 | 3 | } |
2161 | 34 | } |
2162 | | |
2163 | | void MicrosoftCXXNameMangler::mangleAddressSpaceType(QualType T, |
2164 | | Qualifiers Quals, |
2165 | 25 | SourceRange Range) { |
2166 | | // Address space is mangled as an unqualified templated type in the __clang |
2167 | | // namespace. The demangled version of this is: |
2168 | | // In the case of a language specific address space: |
2169 | | // __clang::struct _AS[language_addr_space]<Type> |
2170 | | // where: |
2171 | | // <language_addr_space> ::= <OpenCL-addrspace> | <CUDA-addrspace> |
2172 | | // <OpenCL-addrspace> ::= "CL" [ "global" | "local" | "constant" | |
2173 | | // "private"| "generic" | "device" | "host" ] |
2174 | | // <CUDA-addrspace> ::= "CU" [ "device" | "constant" | "shared" ] |
2175 | | // Note that the above were chosen to match the Itanium mangling for this. |
2176 | | // |
2177 | | // In the case of a non-language specific address space: |
2178 | | // __clang::struct _AS<TargetAS, Type> |
2179 | 25 | assert(Quals.hasAddressSpace() && "Not valid without address space"); |
2180 | 0 | llvm::SmallString<32> ASMangling; |
2181 | 25 | llvm::raw_svector_ostream Stream(ASMangling); |
2182 | 25 | MicrosoftCXXNameMangler Extra(Context, Stream); |
2183 | 25 | Stream << "?$"; |
2184 | | |
2185 | 25 | LangAS AS = Quals.getAddressSpace(); |
2186 | 25 | if (Context.getASTContext().addressSpaceMapManglingFor(AS)) { |
2187 | 11 | unsigned TargetAS = Context.getASTContext().getTargetAddressSpace(AS); |
2188 | 11 | Extra.mangleSourceName("_AS"); |
2189 | 11 | Extra.mangleIntegerLiteral(llvm::APSInt::getUnsigned(TargetAS)); |
2190 | 14 | } else { |
2191 | 14 | switch (AS) { |
2192 | 0 | default: |
2193 | 0 | llvm_unreachable("Not a language specific address space"); |
2194 | 5 | case LangAS::opencl_global: |
2195 | 5 | Extra.mangleSourceName("_ASCLglobal"); |
2196 | 5 | break; |
2197 | 1 | case LangAS::opencl_global_device: |
2198 | 1 | Extra.mangleSourceName("_ASCLdevice"); |
2199 | 1 | break; |
2200 | 1 | case LangAS::opencl_global_host: |
2201 | 1 | Extra.mangleSourceName("_ASCLhost"); |
2202 | 1 | break; |
2203 | 0 | case LangAS::opencl_local: |
2204 | 0 | Extra.mangleSourceName("_ASCLlocal"); |
2205 | 0 | break; |
2206 | 2 | case LangAS::opencl_constant: |
2207 | 2 | Extra.mangleSourceName("_ASCLconstant"); |
2208 | 2 | break; |
2209 | 1 | case LangAS::opencl_private: |
2210 | 1 | Extra.mangleSourceName("_ASCLprivate"); |
2211 | 1 | break; |
2212 | 4 | case LangAS::opencl_generic: |
2213 | 4 | Extra.mangleSourceName("_ASCLgeneric"); |
2214 | 4 | break; |
2215 | 0 | case LangAS::cuda_device: |
2216 | 0 | Extra.mangleSourceName("_ASCUdevice"); |
2217 | 0 | break; |
2218 | 0 | case LangAS::cuda_constant: |
2219 | 0 | Extra.mangleSourceName("_ASCUconstant"); |
2220 | 0 | break; |
2221 | 0 | case LangAS::cuda_shared: |
2222 | 0 | Extra.mangleSourceName("_ASCUshared"); |
2223 | 0 | break; |
2224 | 0 | case LangAS::ptr32_sptr: |
2225 | 0 | case LangAS::ptr32_uptr: |
2226 | 0 | case LangAS::ptr64: |
2227 | 0 | llvm_unreachable("don't mangle ptr address spaces with _AS"); |
2228 | 14 | } |
2229 | 14 | } |
2230 | | |
2231 | 25 | Extra.mangleType(T, Range, QMM_Escape); |
2232 | 25 | mangleQualifiers(Qualifiers(), false); |
2233 | 25 | mangleArtificialTagType(TTK_Struct, ASMangling, {"__clang"}); |
2234 | 25 | } |
2235 | | |
2236 | | void MicrosoftCXXNameMangler::mangleType(QualType T, SourceRange Range, |
2237 | 69.1k | QualifierMangleMode QMM) { |
2238 | | // Don't use the canonical types. MSVC includes things like 'const' on |
2239 | | // pointer arguments to function pointers that canonicalization strips away. |
2240 | 69.1k | T = T.getDesugaredType(getASTContext()); |
2241 | 69.1k | Qualifiers Quals = T.getLocalQualifiers(); |
2242 | | |
2243 | 69.1k | if (const ArrayType *AT = getASTContext().getAsArrayType(T)) { |
2244 | | // If there were any Quals, getAsArrayType() pushed them onto the array |
2245 | | // element type. |
2246 | 62 | if (QMM == QMM_Mangle) |
2247 | 40 | Out << 'A'; |
2248 | 22 | else if (QMM == QMM_Escape || QMM == QMM_Result0 ) |
2249 | 22 | Out << "$$B"; |
2250 | 62 | mangleArrayType(AT); |
2251 | 62 | return; |
2252 | 62 | } |
2253 | | |
2254 | 69.1k | bool IsPointer = T->isAnyPointerType() || T->isMemberPointerType()64.9k || |
2255 | 69.1k | T->isReferenceType()64.5k || T->isBlockPointerType()62.7k ; |
2256 | | |
2257 | 69.1k | switch (QMM) { |
2258 | 30.9k | case QMM_Drop: |
2259 | 30.9k | if (Quals.hasObjCLifetime()) |
2260 | 25 | Quals = Quals.withoutObjCLifetime(); |
2261 | 30.9k | break; |
2262 | 6.37k | case QMM_Mangle: |
2263 | 6.37k | if (const FunctionType *FT = dyn_cast<FunctionType>(T)) { |
2264 | 190 | Out << '6'; |
2265 | 190 | mangleFunctionType(FT); |
2266 | 190 | return; |
2267 | 190 | } |
2268 | 6.18k | mangleQualifiers(Quals, false); |
2269 | 6.18k | break; |
2270 | 7.77k | case QMM_Escape: |
2271 | 7.77k | if (!IsPointer && Quals7.64k ) { |
2272 | 64 | Out << "$$C"; |
2273 | 64 | mangleQualifiers(Quals, false); |
2274 | 64 | } |
2275 | 7.77k | break; |
2276 | 24.0k | case QMM_Result: |
2277 | | // Presence of __unaligned qualifier shouldn't affect mangling here. |
2278 | 24.0k | Quals.removeUnaligned(); |
2279 | 24.0k | if (Quals.hasObjCLifetime()) |
2280 | 1 | Quals = Quals.withoutObjCLifetime(); |
2281 | 24.0k | if ((!IsPointer && Quals22.4k ) || isa<TagType>(T)24.0k || isArtificialTagType(T)22.4k ) { |
2282 | 13.2k | Out << '?'; |
2283 | 13.2k | mangleQualifiers(Quals, false); |
2284 | 13.2k | } |
2285 | 24.0k | break; |
2286 | 69.1k | } |
2287 | | |
2288 | 68.9k | const Type *ty = T.getTypePtr(); |
2289 | | |
2290 | 68.9k | switch (ty->getTypeClass()) { |
2291 | 0 | #define ABSTRACT_TYPE(CLASS, PARENT) |
2292 | 0 | #define NON_CANONICAL_TYPE(CLASS, PARENT) \ |
2293 | 0 | case Type::CLASS: \ |
2294 | 0 | llvm_unreachable("can't mangle non-canonical type " #CLASS "Type"); \ |
2295 | 0 | return; |
2296 | 0 | #define TYPE(CLASS, PARENT) \ |
2297 | 68.9k | case Type::CLASS: \ |
2298 | 68.9k | mangleType(cast<CLASS##Type>(ty), Quals, Range); \ |
2299 | 68.9k | break; |
2300 | 68.9k | #include "clang/AST/TypeNodes.inc"0 |
2301 | 68.9k | #undef ABSTRACT_TYPE |
2302 | 68.9k | #undef NON_CANONICAL_TYPE |
2303 | 68.9k | #undef TYPE |
2304 | 68.9k | } |
2305 | 68.9k | } |
2306 | | |
2307 | | void MicrosoftCXXNameMangler::mangleType(const BuiltinType *T, Qualifiers, |
2308 | 28.4k | SourceRange Range) { |
2309 | | // <type> ::= <builtin-type> |
2310 | | // <builtin-type> ::= X # void |
2311 | | // ::= C # signed char |
2312 | | // ::= D # char |
2313 | | // ::= E # unsigned char |
2314 | | // ::= F # short |
2315 | | // ::= G # unsigned short (or wchar_t if it's not a builtin) |
2316 | | // ::= H # int |
2317 | | // ::= I # unsigned int |
2318 | | // ::= J # long |
2319 | | // ::= K # unsigned long |
2320 | | // L # <none> |
2321 | | // ::= M # float |
2322 | | // ::= N # double |
2323 | | // ::= O # long double (__float80 is mangled differently) |
2324 | | // ::= _J # long long, __int64 |
2325 | | // ::= _K # unsigned long long, __int64 |
2326 | | // ::= _L # __int128 |
2327 | | // ::= _M # unsigned __int128 |
2328 | | // ::= _N # bool |
2329 | | // _O # <array in parameter> |
2330 | | // ::= _Q # char8_t |
2331 | | // ::= _S # char16_t |
2332 | | // ::= _T # __float80 (Intel) |
2333 | | // ::= _U # char32_t |
2334 | | // ::= _W # wchar_t |
2335 | | // ::= _Z # __float80 (Digital Mars) |
2336 | 28.4k | switch (T->getKind()) { |
2337 | 7.76k | case BuiltinType::Void: |
2338 | 7.76k | Out << 'X'; |
2339 | 7.76k | break; |
2340 | 4 | case BuiltinType::SChar: |
2341 | 4 | Out << 'C'; |
2342 | 4 | break; |
2343 | 0 | case BuiltinType::Char_U: |
2344 | 1.71k | case BuiltinType::Char_S: |
2345 | 1.71k | Out << 'D'; |
2346 | 1.71k | break; |
2347 | 4.77k | case BuiltinType::UChar: |
2348 | 4.77k | Out << 'E'; |
2349 | 4.77k | break; |
2350 | 610 | case BuiltinType::Short: |
2351 | 610 | Out << 'F'; |
2352 | 610 | break; |
2353 | 1.60k | case BuiltinType::UShort: |
2354 | 1.60k | Out << 'G'; |
2355 | 1.60k | break; |
2356 | 8.00k | case BuiltinType::Int: |
2357 | 8.00k | Out << 'H'; |
2358 | 8.00k | break; |
2359 | 1.54k | case BuiltinType::UInt: |
2360 | 1.54k | Out << 'I'; |
2361 | 1.54k | break; |
2362 | 85 | case BuiltinType::Long: |
2363 | 85 | Out << 'J'; |
2364 | 85 | break; |
2365 | 33 | case BuiltinType::ULong: |
2366 | 33 | Out << 'K'; |
2367 | 33 | break; |
2368 | 540 | case BuiltinType::Float: |
2369 | 540 | Out << 'M'; |
2370 | 540 | break; |
2371 | 479 | case BuiltinType::Double: |
2372 | 479 | Out << 'N'; |
2373 | 479 | break; |
2374 | | // TODO: Determine size and mangle accordingly |
2375 | 12 | case BuiltinType::LongDouble: |
2376 | 12 | Out << 'O'; |
2377 | 12 | break; |
2378 | 215 | case BuiltinType::LongLong: |
2379 | 215 | Out << "_J"; |
2380 | 215 | break; |
2381 | 597 | case BuiltinType::ULongLong: |
2382 | 597 | Out << "_K"; |
2383 | 597 | break; |
2384 | 0 | case BuiltinType::Int128: |
2385 | 0 | Out << "_L"; |
2386 | 0 | break; |
2387 | 0 | case BuiltinType::UInt128: |
2388 | 0 | Out << "_M"; |
2389 | 0 | break; |
2390 | 115 | case BuiltinType::Bool: |
2391 | 115 | Out << "_N"; |
2392 | 115 | break; |
2393 | 3 | case BuiltinType::Char8: |
2394 | 3 | Out << "_Q"; |
2395 | 3 | break; |
2396 | 9 | case BuiltinType::Char16: |
2397 | 9 | Out << "_S"; |
2398 | 9 | break; |
2399 | 9 | case BuiltinType::Char32: |
2400 | 9 | Out << "_U"; |
2401 | 9 | break; |
2402 | 0 | case BuiltinType::WChar_S: |
2403 | 206 | case BuiltinType::WChar_U: |
2404 | 206 | Out << "_W"; |
2405 | 206 | break; |
2406 | | |
2407 | 0 | #define BUILTIN_TYPE(Id, SingletonId) |
2408 | 0 | #define PLACEHOLDER_TYPE(Id, SingletonId) \ |
2409 | 0 | case BuiltinType::Id: |
2410 | 206 | #include "clang/AST/BuiltinTypes.def" |
2411 | 0 | case BuiltinType::Dependent: |
2412 | 0 | llvm_unreachable("placeholder types shouldn't get to name mangling"); |
2413 | |
|
2414 | 35 | case BuiltinType::ObjCId: |
2415 | 35 | mangleArtificialTagType(TTK_Struct, "objc_object"); |
2416 | 35 | break; |
2417 | 12 | case BuiltinType::ObjCClass: |
2418 | 12 | mangleArtificialTagType(TTK_Struct, "objc_class"); |
2419 | 12 | break; |
2420 | 15 | case BuiltinType::ObjCSel: |
2421 | 15 | mangleArtificialTagType(TTK_Struct, "objc_selector"); |
2422 | 15 | break; |
2423 | | |
2424 | 0 | #define IMAGE_TYPE(ImgType, Id, SingletonId, Access, Suffix) \ |
2425 | 0 | case BuiltinType::Id: \ |
2426 | 0 | Out << "PAUocl_" #ImgType "_" #Suffix "@@"; \ |
2427 | 0 | break; |
2428 | 15 | #include "clang/Basic/OpenCLImageTypes.def" |
2429 | 0 | case BuiltinType::OCLSampler: |
2430 | 0 | Out << "PA"; |
2431 | 0 | mangleArtificialTagType(TTK_Struct, "ocl_sampler"); |
2432 | 0 | break; |
2433 | 0 | case BuiltinType::OCLEvent: |
2434 | 0 | Out << "PA"; |
2435 | 0 | mangleArtificialTagType(TTK_Struct, "ocl_event"); |
2436 | 0 | break; |
2437 | 0 | case BuiltinType::OCLClkEvent: |
2438 | 0 | Out << "PA"; |
2439 | 0 | mangleArtificialTagType(TTK_Struct, "ocl_clkevent"); |
2440 | 0 | break; |
2441 | 0 | case BuiltinType::OCLQueue: |
2442 | 0 | Out << "PA"; |
2443 | 0 | mangleArtificialTagType(TTK_Struct, "ocl_queue"); |
2444 | 0 | break; |
2445 | 0 | case BuiltinType::OCLReserveID: |
2446 | 0 | Out << "PA"; |
2447 | 0 | mangleArtificialTagType(TTK_Struct, "ocl_reserveid"); |
2448 | 0 | break; |
2449 | 0 | #define EXT_OPAQUE_TYPE(ExtType, Id, Ext) \ |
2450 | 0 | case BuiltinType::Id: \ |
2451 | 0 | mangleArtificialTagType(TTK_Struct, "ocl_" #ExtType); \ |
2452 | 0 | break; |
2453 | 0 | #include "clang/Basic/OpenCLExtensionTypes.def" |
2454 | | |
2455 | 16 | case BuiltinType::NullPtr: |
2456 | 16 | Out << "$$T"; |
2457 | 16 | break; |
2458 | | |
2459 | 1 | case BuiltinType::Float16: |
2460 | 1 | mangleArtificialTagType(TTK_Struct, "_Float16", {"__clang"}); |
2461 | 1 | break; |
2462 | | |
2463 | 6 | case BuiltinType::Half: |
2464 | 6 | if (!getASTContext().getLangOpts().HLSL) |
2465 | 2 | mangleArtificialTagType(TTK_Struct, "_Half", {"__clang"}); |
2466 | 4 | else if (getASTContext().getLangOpts().NativeHalfType) |
2467 | 2 | Out << "$f16@"; |
2468 | 2 | else |
2469 | 2 | Out << "$halff@"; |
2470 | 6 | break; |
2471 | | |
2472 | 0 | #define SVE_TYPE(Name, Id, SingletonId) \ |
2473 | 49 | case BuiltinType::Id: |
2474 | 49 | #include "clang/Basic/AArch64SVEACLETypes.def"6 |
2475 | 49 | #define PPC_VECTOR_TYPE(Name, Id, Size) \ |
2476 | 49 | case BuiltinType::Id:2 |
2477 | 49 | #include "clang/Basic/PPCTypes.def"1 |
2478 | 66 | #define RVV_TYPE(Name, Id, SingletonId) case BuiltinType::Id: |
2479 | 66 | #include "clang/Basic/RISCVVTypes.def"1 |
2480 | 66 | case BuiltinType::ShortAccum: |
2481 | 1 | case BuiltinType::Accum: |
2482 | 1 | case BuiltinType::LongAccum: |
2483 | 1 | case BuiltinType::UShortAccum: |
2484 | 1 | case BuiltinType::UAccum: |
2485 | 1 | case BuiltinType::ULongAccum: |
2486 | 1 | case BuiltinType::ShortFract: |
2487 | 1 | case BuiltinType::Fract: |
2488 | 1 | case BuiltinType::LongFract: |
2489 | 1 | case BuiltinType::UShortFract: |
2490 | 1 | case BuiltinType::UFract: |
2491 | 1 | case BuiltinType::ULongFract: |
2492 | 1 | case BuiltinType::SatShortAccum: |
2493 | 1 | case BuiltinType::SatAccum: |
2494 | 1 | case BuiltinType::SatLongAccum: |
2495 | 1 | case BuiltinType::SatUShortAccum: |
2496 | 1 | case BuiltinType::SatUAccum: |
2497 | 1 | case BuiltinType::SatULongAccum: |
2498 | 1 | case BuiltinType::SatShortFract: |
2499 | 1 | case BuiltinType::SatFract: |
2500 | 1 | case BuiltinType::SatLongFract: |
2501 | 1 | case BuiltinType::SatUShortFract: |
2502 | 1 | case BuiltinType::SatUFract: |
2503 | 1 | case BuiltinType::SatULongFract: |
2504 | 1 | case BuiltinType::BFloat16: |
2505 | 1 | case BuiltinType::Ibm128: |
2506 | 1 | case BuiltinType::Float128: { |
2507 | 1 | DiagnosticsEngine &Diags = Context.getDiags(); |
2508 | 1 | unsigned DiagID = Diags.getCustomDiagID( |
2509 | 1 | DiagnosticsEngine::Error, "cannot mangle this built-in %0 type yet"); |
2510 | 1 | Diags.Report(Range.getBegin(), DiagID) |
2511 | 1 | << T->getName(Context.getASTContext().getPrintingPolicy()) << Range; |
2512 | 1 | break; |
2513 | 1 | } |
2514 | 28.4k | } |
2515 | 28.4k | } |
2516 | | |
2517 | | // <type> ::= <function-type> |
2518 | | void MicrosoftCXXNameMangler::mangleType(const FunctionProtoType *T, Qualifiers, |
2519 | 138 | SourceRange) { |
2520 | | // Structors only appear in decls, so at this point we know it's not a |
2521 | | // structor type. |
2522 | | // FIXME: This may not be lambda-friendly. |
2523 | 138 | if (T->getMethodQuals() || T->getRefQualifier() != RQ_None102 ) { |
2524 | 44 | Out << "$$A8@@"; |
2525 | 44 | mangleFunctionType(T, /*D=*/nullptr, /*ForceThisQuals=*/true); |
2526 | 94 | } else { |
2527 | 94 | Out << "$$A6"; |
2528 | 94 | mangleFunctionType(T); |
2529 | 94 | } |
2530 | 138 | } |
2531 | | void MicrosoftCXXNameMangler::mangleType(const FunctionNoProtoType *T, |
2532 | 0 | Qualifiers, SourceRange) { |
2533 | 0 | Out << "$$A6"; |
2534 | 0 | mangleFunctionType(T); |
2535 | 0 | } |
2536 | | |
2537 | | void MicrosoftCXXNameMangler::mangleFunctionType(const FunctionType *T, |
2538 | | const FunctionDecl *D, |
2539 | | bool ForceThisQuals, |
2540 | 25.3k | bool MangleExceptionSpec) { |
2541 | | // <function-type> ::= <this-cvr-qualifiers> <calling-convention> |
2542 | | // <return-type> <argument-list> <throw-spec> |
2543 | 25.3k | const FunctionProtoType *Proto = dyn_cast<FunctionProtoType>(T); |
2544 | | |
2545 | 25.3k | SourceRange Range; |
2546 | 25.3k | if (D) Range = D->getSourceRange()24.6k ; |
2547 | | |
2548 | 25.3k | bool IsInLambda = false; |
2549 | 25.3k | bool IsStructor = false, HasThisQuals = ForceThisQuals, IsCtorClosure = false; |
2550 | 25.3k | CallingConv CC = T->getCallConv(); |
2551 | 25.3k | if (const CXXMethodDecl *MD = dyn_cast_or_null<CXXMethodDecl>(D)) { |
2552 | 5.87k | if (MD->getParent()->isLambda()) |
2553 | 117 | IsInLambda = true; |
2554 | 5.87k | if (MD->isInstance()) |
2555 | 5.51k | HasThisQuals = true; |
2556 | 5.87k | if (isa<CXXDestructorDecl>(MD)) { |
2557 | 1.03k | IsStructor = true; |
2558 | 4.84k | } else if (isa<CXXConstructorDecl>(MD)) { |
2559 | 1.63k | IsStructor = true; |
2560 | 1.63k | IsCtorClosure = (StructorType == Ctor_CopyingClosure || |
2561 | 1.63k | StructorType == Ctor_DefaultClosure1.62k ) && |
2562 | 1.63k | isStructorDecl(MD)41 ; |
2563 | 1.63k | if (IsCtorClosure) |
2564 | 41 | CC = getASTContext().getDefaultCallingConvention( |
2565 | 41 | /*IsVariadic=*/false, /*IsCXXMethod=*/true); |
2566 | 1.63k | } |
2567 | 5.87k | } |
2568 | | |
2569 | | // If this is a C++ instance method, mangle the CVR qualifiers for the |
2570 | | // this pointer. |
2571 | 25.3k | if (HasThisQuals) { |
2572 | 5.90k | Qualifiers Quals = Proto->getMethodQuals(); |
2573 | 5.90k | manglePointerExtQualifiers(Quals, /*PointeeType=*/QualType()); |
2574 | 5.90k | mangleRefQualifier(Proto->getRefQualifier()); |
2575 | 5.90k | mangleQualifiers(Quals, /*IsMember=*/false); |
2576 | 5.90k | } |
2577 | | |
2578 | 25.3k | mangleCallingConvention(CC); |
2579 | | |
2580 | | // <return-type> ::= <type> |
2581 | | // ::= @ # structors (they have no declared return type) |
2582 | 25.3k | if (IsStructor) { |
2583 | 2.66k | if (isa<CXXDestructorDecl>(D) && isStructorDecl(D)1.03k ) { |
2584 | | // The scalar deleting destructor takes an extra int argument which is not |
2585 | | // reflected in the AST. |
2586 | 1.02k | if (StructorType == Dtor_Deleting) { |
2587 | 386 | Out << (PointersAre64Bit ? "PEAXI@Z"165 : "PAXI@Z"221 ); |
2588 | 386 | return; |
2589 | 386 | } |
2590 | | // The vbase destructor returns void which is not reflected in the AST. |
2591 | 641 | if (StructorType == Dtor_Complete) { |
2592 | 120 | Out << "XXZ"; |
2593 | 120 | return; |
2594 | 120 | } |
2595 | 641 | } |
2596 | 2.15k | if (IsCtorClosure) { |
2597 | | // Default constructor closure and copy constructor closure both return |
2598 | | // void. |
2599 | 41 | Out << 'X'; |
2600 | | |
2601 | 41 | if (StructorType == Ctor_DefaultClosure) { |
2602 | | // Default constructor closure always has no arguments. |
2603 | 32 | Out << 'X'; |
2604 | 32 | } else if (9 StructorType == Ctor_CopyingClosure9 ) { |
2605 | | // Copy constructor closure always takes an unqualified reference. |
2606 | 9 | mangleFunctionArgumentType(getASTContext().getLValueReferenceType( |
2607 | 9 | Proto->getParamType(0) |
2608 | 9 | ->getAs<LValueReferenceType>() |
2609 | 9 | ->getPointeeType(), |
2610 | 9 | /*SpelledAsLValue=*/true), |
2611 | 9 | Range); |
2612 | 9 | Out << '@'; |
2613 | 9 | } else { |
2614 | 0 | llvm_unreachable("unexpected constructor closure!"); |
2615 | 0 | } |
2616 | 41 | Out << 'Z'; |
2617 | 41 | return; |
2618 | 41 | } |
2619 | 2.11k | Out << '@'; |
2620 | 22.6k | } else if (IsInLambda && D117 && isa<CXXConversionDecl>(D)117 ) { |
2621 | | // The only lambda conversion operators are to function pointers, which |
2622 | | // can differ by their calling convention and are typically deduced. So |
2623 | | // we make sure that this type gets mangled properly. |
2624 | 13 | mangleType(T->getReturnType(), Range, QMM_Result); |
2625 | 22.6k | } else { |
2626 | 22.6k | QualType ResultType = T->getReturnType(); |
2627 | 22.6k | if (IsInLambda && isa<CXXConversionDecl>(D)104 ) { |
2628 | | // The only lambda conversion operators are to function pointers, which |
2629 | | // can differ by their calling convention and are typically deduced. So |
2630 | | // we make sure that this type gets mangled properly. |
2631 | 0 | mangleType(ResultType, Range, QMM_Result); |
2632 | 22.6k | } else if (const auto *AT = dyn_cast_or_null<AutoType>( |
2633 | 22.6k | ResultType->getContainedAutoType())) { |
2634 | 76 | Out << '?'; |
2635 | 76 | mangleQualifiers(ResultType.getLocalQualifiers(), /*IsMember=*/false); |
2636 | 76 | Out << '?'; |
2637 | 76 | assert(AT->getKeyword() != AutoTypeKeyword::GNUAutoType && |
2638 | 76 | "shouldn't need to mangle __auto_type!"); |
2639 | 76 | mangleSourceName(AT->isDecltypeAuto() ? "<decltype-auto>"0 : "<auto>"); |
2640 | 76 | Out << '@'; |
2641 | 22.6k | } else if (IsInLambda) { |
2642 | 60 | Out << '@'; |
2643 | 22.5k | } else { |
2644 | 22.5k | if (ResultType->isVoidType()) |
2645 | 6.26k | ResultType = ResultType.getUnqualifiedType(); |
2646 | 22.5k | mangleType(ResultType, Range, QMM_Result); |
2647 | 22.5k | } |
2648 | 22.6k | } |
2649 | | |
2650 | | // <argument-list> ::= X # void |
2651 | | // ::= <type>+ @ |
2652 | | // ::= <type>* Z # varargs |
2653 | 24.8k | if (!Proto) { |
2654 | | // Function types without prototypes can arise when mangling a function type |
2655 | | // within an overloadable function in C. We mangle these as the absence of |
2656 | | // any parameter types (not even an empty parameter list). |
2657 | 14 | Out << '@'; |
2658 | 24.7k | } else if (Proto->getNumParams() == 0 && !Proto->isVariadic()7.65k ) { |
2659 | 7.64k | Out << 'X'; |
2660 | 17.1k | } else { |
2661 | | // Happens for function pointer type arguments for example. |
2662 | 55.6k | for (unsigned I = 0, E = Proto->getNumParams(); I != E; ++I38.5k ) { |
2663 | 38.5k | mangleFunctionArgumentType(Proto->getParamType(I), Range); |
2664 | | // Mangle each pass_object_size parameter as if it's a parameter of enum |
2665 | | // type passed directly after the parameter with the pass_object_size |
2666 | | // attribute. The aforementioned enum's name is __pass_object_size, and we |
2667 | | // pretend it resides in a top-level namespace called __clang. |
2668 | | // |
2669 | | // FIXME: Is there a defined extension notation for the MS ABI, or is it |
2670 | | // necessary to just cross our fingers and hope this type+namespace |
2671 | | // combination doesn't conflict with anything? |
2672 | 38.5k | if (D) |
2673 | 38.3k | if (const auto *P = D->getParamDecl(I)->getAttr<PassObjectSizeAttr>()) |
2674 | 34 | manglePassObjectSizeArg(P); |
2675 | 38.5k | } |
2676 | | // <builtin-type> ::= Z # ellipsis |
2677 | 17.1k | if (Proto->isVariadic()) |
2678 | 46 | Out << 'Z'; |
2679 | 17.1k | else |
2680 | 17.1k | Out << '@'; |
2681 | 17.1k | } |
2682 | | |
2683 | 24.8k | if (MangleExceptionSpec && getASTContext().getLangOpts().CPlusPlus17907 && |
2684 | 24.8k | getASTContext().getLangOpts().isCompatibleWithMSVC( |
2685 | 65 | LangOptions::MSVC2017_5)) |
2686 | 28 | mangleThrowSpecification(Proto); |
2687 | 24.7k | else |
2688 | 24.7k | Out << 'Z'; |
2689 | 24.8k | } |
2690 | | |
2691 | 24.2k | void MicrosoftCXXNameMangler::mangleFunctionClass(const FunctionDecl *FD) { |
2692 | | // <function-class> ::= <member-function> E? # E designates a 64-bit 'this' |
2693 | | // # pointer. in 64-bit mode *all* |
2694 | | // # 'this' pointers are 64-bit. |
2695 | | // ::= <global-function> |
2696 | | // <member-function> ::= A # private: near |
2697 | | // ::= B # private: far |
2698 | | // ::= C # private: static near |
2699 | | // ::= D # private: static far |
2700 | | // ::= E # private: virtual near |
2701 | | // ::= F # private: virtual far |
2702 | | // ::= I # protected: near |
2703 | | // ::= J # protected: far |
2704 | | // ::= K # protected: static near |
2705 | | // ::= L # protected: static far |
2706 | | // ::= M # protected: virtual near |
2707 | | // ::= N # protected: virtual far |
2708 | | // ::= Q # public: near |
2709 | | // ::= R # public: far |
2710 | | // ::= S # public: static near |
2711 | | // ::= T # public: static far |
2712 | | // ::= U # public: virtual near |
2713 | | // ::= V # public: virtual far |
2714 | | // <global-function> ::= Y # global near |
2715 | | // ::= Z # global far |
2716 | 24.2k | if (const CXXMethodDecl *MD = dyn_cast<CXXMethodDecl>(FD)) { |
2717 | 5.49k | bool IsVirtual = MD->isVirtual(); |
2718 | | // When mangling vbase destructor variants, ignore whether or not the |
2719 | | // underlying destructor was defined to be virtual. |
2720 | 5.49k | if (isa<CXXDestructorDecl>(MD) && isStructorDecl(MD)861 && |
2721 | 5.49k | StructorType == Dtor_Complete857 ) { |
2722 | 120 | IsVirtual = false; |
2723 | 120 | } |
2724 | 5.49k | switch (MD->getAccess()) { |
2725 | 0 | case AS_none: |
2726 | 0 | llvm_unreachable("Unsupported access specifier"); |
2727 | 118 | case AS_private: |
2728 | 118 | if (MD->isStatic()) |
2729 | 27 | Out << 'C'; |
2730 | 91 | else if (IsVirtual) |
2731 | 51 | Out << 'E'; |
2732 | 40 | else |
2733 | 40 | Out << 'A'; |
2734 | 118 | break; |
2735 | 42 | case AS_protected: |
2736 | 42 | if (MD->isStatic()) |
2737 | 14 | Out << 'K'; |
2738 | 28 | else if (IsVirtual) |
2739 | 14 | Out << 'M'; |
2740 | 14 | else |
2741 | 14 | Out << 'I'; |
2742 | 42 | break; |
2743 | 5.33k | case AS_public: |
2744 | 5.33k | if (MD->isStatic()) |
2745 | 323 | Out << 'S'; |
2746 | 5.00k | else if (IsVirtual) |
2747 | 1.06k | Out << 'U'; |
2748 | 3.94k | else |
2749 | 3.94k | Out << 'Q'; |
2750 | 5.49k | } |
2751 | 18.7k | } else { |
2752 | 18.7k | Out << 'Y'; |
2753 | 18.7k | } |
2754 | 24.2k | } |
2755 | 25.4k | void MicrosoftCXXNameMangler::mangleCallingConvention(CallingConv CC) { |
2756 | | // <calling-convention> ::= A # __cdecl |
2757 | | // ::= B # __export __cdecl |
2758 | | // ::= C # __pascal |
2759 | | // ::= D # __export __pascal |
2760 | | // ::= E # __thiscall |
2761 | | // ::= F # __export __thiscall |
2762 | | // ::= G # __stdcall |
2763 | | // ::= H # __export __stdcall |
2764 | | // ::= I # __fastcall |
2765 | | // ::= J # __export __fastcall |
2766 | | // ::= Q # __vectorcall |
2767 | | // ::= S # __attribute__((__swiftcall__)) // Clang-only |
2768 | | // ::= T # __attribute__((__swiftasynccall__)) |
2769 | | // // Clang-only |
2770 | | // ::= w # __regcall |
2771 | | // The 'export' calling conventions are from a bygone era |
2772 | | // (*cough*Win16*cough*) when functions were declared for export with |
2773 | | // that keyword. (It didn't actually export them, it just made them so |
2774 | | // that they could be in a DLL and somebody from another module could call |
2775 | | // them.) |
2776 | | |
2777 | 25.4k | switch (CC) { |
2778 | 0 | default: |
2779 | 0 | llvm_unreachable("Unsupported CC for mangling"); |
2780 | 0 | case CC_Win64: |
2781 | 0 | case CC_X86_64SysV: |
2782 | 22.1k | case CC_C: Out << 'A'; break; |
2783 | 1 | case CC_X86Pascal: Out << 'C'; break; |
2784 | 3.13k | case CC_X86ThisCall: Out << 'E'; break; |
2785 | 20 | case CC_X86StdCall: Out << 'G'; break; |
2786 | 12 | case CC_X86FastCall: Out << 'I'; break; |
2787 | 13 | case CC_X86VectorCall: Out << 'Q'; break; |
2788 | 13 | case CC_Swift: Out << 'S'; break; |
2789 | 0 | case CC_SwiftAsync: Out << 'W'; break; |
2790 | 12 | case CC_PreserveMost: Out << 'U'; break; |
2791 | 23 | case CC_X86RegCall: Out << 'w'; break; |
2792 | 25.4k | } |
2793 | 25.4k | } |
2794 | 64 | void MicrosoftCXXNameMangler::mangleCallingConvention(const FunctionType *T) { |
2795 | 64 | mangleCallingConvention(T->getCallConv()); |
2796 | 64 | } |
2797 | | |
2798 | | void MicrosoftCXXNameMangler::mangleThrowSpecification( |
2799 | 28 | const FunctionProtoType *FT) { |
2800 | | // <throw-spec> ::= Z # (default) |
2801 | | // ::= _E # noexcept |
2802 | 28 | if (FT->canThrow()) |
2803 | 14 | Out << 'Z'; |
2804 | 14 | else |
2805 | 14 | Out << "_E"; |
2806 | 28 | } |
2807 | | |
2808 | | void MicrosoftCXXNameMangler::mangleType(const UnresolvedUsingType *T, |
2809 | 0 | Qualifiers, SourceRange Range) { |
2810 | | // Probably should be mangled as a template instantiation; need to see what |
2811 | | // VC does first. |
2812 | 0 | DiagnosticsEngine &Diags = Context.getDiags(); |
2813 | 0 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, |
2814 | 0 | "cannot mangle this unresolved dependent type yet"); |
2815 | 0 | Diags.Report(Range.getBegin(), DiagID) |
2816 | 0 | << Range; |
2817 | 0 | } |
2818 | | |
2819 | | // <type> ::= <union-type> | <struct-type> | <class-type> | <enum-type> |
2820 | | // <union-type> ::= T <name> |
2821 | | // <struct-type> ::= U <name> |
2822 | | // <class-type> ::= V <name> |
2823 | | // <enum-type> ::= W4 <name> |
2824 | 34.1k | void MicrosoftCXXNameMangler::mangleTagTypeKind(TagTypeKind TTK) { |
2825 | 34.1k | switch (TTK) { |
2826 | 21.0k | case TTK_Union: |
2827 | 21.0k | Out << 'T'; |
2828 | 21.0k | break; |
2829 | 12.0k | case TTK_Struct: |
2830 | 12.0k | case TTK_Interface: |
2831 | 12.0k | Out << 'U'; |
2832 | 12.0k | break; |
2833 | 775 | case TTK_Class: |
2834 | 775 | Out << 'V'; |
2835 | 775 | break; |
2836 | 338 | case TTK_Enum: |
2837 | 338 | Out << "W4"; |
2838 | 338 | break; |
2839 | 34.1k | } |
2840 | 34.1k | } |
2841 | | void MicrosoftCXXNameMangler::mangleType(const EnumType *T, Qualifiers, |
2842 | 307 | SourceRange) { |
2843 | 307 | mangleType(cast<TagType>(T)->getDecl()); |
2844 | 307 | } |
2845 | | void MicrosoftCXXNameMangler::mangleType(const RecordType *T, Qualifiers, |
2846 | 8.26k | SourceRange) { |
2847 | 8.26k | mangleType(cast<TagType>(T)->getDecl()); |
2848 | 8.26k | } |
2849 | 8.58k | void MicrosoftCXXNameMangler::mangleType(const TagDecl *TD) { |
2850 | 8.58k | mangleTagTypeKind(TD->getTagKind()); |
2851 | 8.58k | mangleName(TD); |
2852 | 8.58k | } |
2853 | | |
2854 | | // If you add a call to this, consider updating isArtificialTagType() too. |
2855 | | void MicrosoftCXXNameMangler::mangleArtificialTagType( |
2856 | | TagTypeKind TK, StringRef UnqualifiedName, |
2857 | 25.5k | ArrayRef<StringRef> NestedNames) { |
2858 | | // <name> ::= <unscoped-name> {[<named-scope>]+ | [<nested-name>]}? @ |
2859 | 25.5k | mangleTagTypeKind(TK); |
2860 | | |
2861 | | // Always start with the unqualified name. |
2862 | 25.5k | mangleSourceName(UnqualifiedName); |
2863 | | |
2864 | 25.5k | for (StringRef N : llvm::reverse(NestedNames)) |
2865 | 439 | mangleSourceName(N); |
2866 | | |
2867 | | // Terminate the whole name with an '@'. |
2868 | 25.5k | Out << '@'; |
2869 | 25.5k | } |
2870 | | |
2871 | | // <type> ::= <array-type> |
2872 | | // <array-type> ::= <pointer-cvr-qualifiers> <cvr-qualifiers> |
2873 | | // [Y <dimension-count> <dimension>+] |
2874 | | // <element-type> # as global, E is never required |
2875 | | // It's supposed to be the other way around, but for some strange reason, it |
2876 | | // isn't. Today this behavior is retained for the sole purpose of backwards |
2877 | | // compatibility. |
2878 | 110 | void MicrosoftCXXNameMangler::mangleDecayedArrayType(const ArrayType *T) { |
2879 | | // This isn't a recursive mangling, so now we have to do it all in this |
2880 | | // one call. |
2881 | 110 | manglePointerCVQualifiers(T->getElementType().getQualifiers()); |
2882 | 110 | mangleType(T->getElementType(), SourceRange()); |
2883 | 110 | } |
2884 | | void MicrosoftCXXNameMangler::mangleType(const ConstantArrayType *T, Qualifiers, |
2885 | 0 | SourceRange) { |
2886 | 0 | llvm_unreachable("Should have been special cased"); |
2887 | 0 | } |
2888 | | void MicrosoftCXXNameMangler::mangleType(const VariableArrayType *T, Qualifiers, |
2889 | 0 | SourceRange) { |
2890 | 0 | llvm_unreachable("Should have been special cased"); |
2891 | 0 | } |
2892 | | void MicrosoftCXXNameMangler::mangleType(const DependentSizedArrayType *T, |
2893 | 0 | Qualifiers, SourceRange) { |
2894 | 0 | llvm_unreachable("Should have been special cased"); |
2895 | 0 | } |
2896 | | void MicrosoftCXXNameMangler::mangleType(const IncompleteArrayType *T, |
2897 | 0 | Qualifiers, SourceRange) { |
2898 | 0 | llvm_unreachable("Should have been special cased"); |
2899 | 0 | } |
2900 | 62 | void MicrosoftCXXNameMangler::mangleArrayType(const ArrayType *T) { |
2901 | 62 | QualType ElementTy(T, 0); |
2902 | 62 | SmallVector<llvm::APInt, 3> Dimensions; |
2903 | 135 | for (;;) { |
2904 | 135 | if (ElementTy->isConstantArrayType()) { |
2905 | 67 | const ConstantArrayType *CAT = |
2906 | 67 | getASTContext().getAsConstantArrayType(ElementTy); |
2907 | 67 | Dimensions.push_back(CAT->getSize()); |
2908 | 67 | ElementTy = CAT->getElementType(); |
2909 | 68 | } else if (ElementTy->isIncompleteArrayType()) { |
2910 | 4 | const IncompleteArrayType *IAT = |
2911 | 4 | getASTContext().getAsIncompleteArrayType(ElementTy); |
2912 | 4 | Dimensions.push_back(llvm::APInt(32, 0)); |
2913 | 4 | ElementTy = IAT->getElementType(); |
2914 | 64 | } else if (ElementTy->isVariableArrayType()) { |
2915 | 2 | const VariableArrayType *VAT = |
2916 | 2 | getASTContext().getAsVariableArrayType(ElementTy); |
2917 | 2 | Dimensions.push_back(llvm::APInt(32, 0)); |
2918 | 2 | ElementTy = VAT->getElementType(); |
2919 | 62 | } else if (ElementTy->isDependentSizedArrayType()) { |
2920 | | // The dependent expression has to be folded into a constant (TODO). |
2921 | 0 | const DependentSizedArrayType *DSAT = |
2922 | 0 | getASTContext().getAsDependentSizedArrayType(ElementTy); |
2923 | 0 | DiagnosticsEngine &Diags = Context.getDiags(); |
2924 | 0 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, |
2925 | 0 | "cannot mangle this dependent-length array yet"); |
2926 | 0 | Diags.Report(DSAT->getSizeExpr()->getExprLoc(), DiagID) |
2927 | 0 | << DSAT->getBracketsRange(); |
2928 | 0 | return; |
2929 | 62 | } else { |
2930 | 62 | break; |
2931 | 62 | } |
2932 | 135 | } |
2933 | 62 | Out << 'Y'; |
2934 | | // <dimension-count> ::= <number> # number of extra dimensions |
2935 | 62 | mangleNumber(Dimensions.size()); |
2936 | 62 | for (const llvm::APInt &Dimension : Dimensions) |
2937 | 73 | mangleNumber(Dimension.getLimitedValue()); |
2938 | 62 | mangleType(ElementTy, SourceRange(), QMM_Escape); |
2939 | 62 | } |
2940 | | |
2941 | | // <type> ::= <pointer-to-member-type> |
2942 | | // <pointer-to-member-type> ::= <pointer-cvr-qualifiers> <cvr-qualifiers> |
2943 | | // <class name> <type> |
2944 | | void MicrosoftCXXNameMangler::mangleType(const MemberPointerType *T, |
2945 | 464 | Qualifiers Quals, SourceRange Range) { |
2946 | 464 | QualType PointeeType = T->getPointeeType(); |
2947 | 464 | manglePointerCVQualifiers(Quals); |
2948 | 464 | manglePointerExtQualifiers(Quals, PointeeType); |
2949 | 464 | if (const FunctionProtoType *FPT = PointeeType->getAs<FunctionProtoType>()) { |
2950 | 348 | Out << '8'; |
2951 | 348 | mangleName(T->getClass()->castAs<RecordType>()->getDecl()); |
2952 | 348 | mangleFunctionType(FPT, nullptr, true); |
2953 | 348 | } else { |
2954 | 116 | mangleQualifiers(PointeeType.getQualifiers(), true); |
2955 | 116 | mangleName(T->getClass()->castAs<RecordType>()->getDecl()); |
2956 | 116 | mangleType(PointeeType, Range, QMM_Drop); |
2957 | 116 | } |
2958 | 464 | } |
2959 | | |
2960 | | void MicrosoftCXXNameMangler::mangleType(const TemplateTypeParmType *T, |
2961 | 0 | Qualifiers, SourceRange Range) { |
2962 | 0 | DiagnosticsEngine &Diags = Context.getDiags(); |
2963 | 0 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, |
2964 | 0 | "cannot mangle this template type parameter type yet"); |
2965 | 0 | Diags.Report(Range.getBegin(), DiagID) |
2966 | 0 | << Range; |
2967 | 0 | } |
2968 | | |
2969 | | void MicrosoftCXXNameMangler::mangleType(const SubstTemplateTypeParmPackType *T, |
2970 | 0 | Qualifiers, SourceRange Range) { |
2971 | 0 | DiagnosticsEngine &Diags = Context.getDiags(); |
2972 | 0 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, |
2973 | 0 | "cannot mangle this substituted parameter pack yet"); |
2974 | 0 | Diags.Report(Range.getBegin(), DiagID) |
2975 | 0 | << Range; |
2976 | 0 | } |
2977 | | |
2978 | | // <type> ::= <pointer-type> |
2979 | | // <pointer-type> ::= E? <pointer-cvr-qualifiers> <cvr-qualifiers> <type> |
2980 | | // # the E is required for 64-bit non-static pointers |
2981 | | void MicrosoftCXXNameMangler::mangleType(const PointerType *T, Qualifiers Quals, |
2982 | 4.05k | SourceRange Range) { |
2983 | 4.05k | QualType PointeeType = T->getPointeeType(); |
2984 | 4.05k | manglePointerCVQualifiers(Quals); |
2985 | 4.05k | manglePointerExtQualifiers(Quals, PointeeType); |
2986 | | |
2987 | | // For pointer size address spaces, go down the same type mangling path as |
2988 | | // non address space types. |
2989 | 4.05k | LangAS AddrSpace = PointeeType.getQualifiers().getAddressSpace(); |
2990 | 4.05k | if (isPtrSizeAddressSpace(AddrSpace) || AddrSpace == LangAS::Default4.05k ) |
2991 | 4.03k | mangleType(PointeeType, Range); |
2992 | 25 | else |
2993 | 25 | mangleAddressSpaceType(PointeeType, PointeeType.getQualifiers(), Range); |
2994 | 4.05k | } |
2995 | | |
2996 | | void MicrosoftCXXNameMangler::mangleType(const ObjCObjectPointerType *T, |
2997 | 75 | Qualifiers Quals, SourceRange Range) { |
2998 | 75 | QualType PointeeType = T->getPointeeType(); |
2999 | 75 | switch (Quals.getObjCLifetime()) { |
3000 | 65 | case Qualifiers::OCL_None: |
3001 | 66 | case Qualifiers::OCL_ExplicitNone: |
3002 | 66 | break; |
3003 | 2 | case Qualifiers::OCL_Autoreleasing: |
3004 | 6 | case Qualifiers::OCL_Strong: |
3005 | 9 | case Qualifiers::OCL_Weak: |
3006 | 9 | return mangleObjCLifetime(PointeeType, Quals, Range); |
3007 | 75 | } |
3008 | 66 | manglePointerCVQualifiers(Quals); |
3009 | 66 | manglePointerExtQualifiers(Quals, PointeeType); |
3010 | 66 | mangleType(PointeeType, Range); |
3011 | 66 | } |
3012 | | |
3013 | | // <type> ::= <reference-type> |
3014 | | // <reference-type> ::= A E? <cvr-qualifiers> <type> |
3015 | | // # the E is required for 64-bit non-static lvalue references |
3016 | | void MicrosoftCXXNameMangler::mangleType(const LValueReferenceType *T, |
3017 | 1.51k | Qualifiers Quals, SourceRange Range) { |
3018 | 1.51k | QualType PointeeType = T->getPointeeType(); |
3019 | 1.51k | assert(!Quals.hasConst() && !Quals.hasVolatile() && "unexpected qualifier!"); |
3020 | 0 | Out << 'A'; |
3021 | 1.51k | manglePointerExtQualifiers(Quals, PointeeType); |
3022 | 1.51k | mangleType(PointeeType, Range); |
3023 | 1.51k | } |
3024 | | |
3025 | | // <type> ::= <r-value-reference-type> |
3026 | | // <r-value-reference-type> ::= $$Q E? <cvr-qualifiers> <type> |
3027 | | // # the E is required for 64-bit non-static rvalue references |
3028 | | void MicrosoftCXXNameMangler::mangleType(const RValueReferenceType *T, |
3029 | 271 | Qualifiers Quals, SourceRange Range) { |
3030 | 271 | QualType PointeeType = T->getPointeeType(); |
3031 | 271 | assert(!Quals.hasConst() && !Quals.hasVolatile() && "unexpected qualifier!"); |
3032 | 0 | Out << "$$Q"; |
3033 | 271 | manglePointerExtQualifiers(Quals, PointeeType); |
3034 | 271 | mangleType(PointeeType, Range); |
3035 | 271 | } |
3036 | | |
3037 | | void MicrosoftCXXNameMangler::mangleType(const ComplexType *T, Qualifiers, |
3038 | 38 | SourceRange Range) { |
3039 | 38 | QualType ElementType = T->getElementType(); |
3040 | | |
3041 | 38 | llvm::SmallString<64> TemplateMangling; |
3042 | 38 | llvm::raw_svector_ostream Stream(TemplateMangling); |
3043 | 38 | MicrosoftCXXNameMangler Extra(Context, Stream); |
3044 | 38 | Stream << "?$"; |
3045 | 38 | Extra.mangleSourceName("_Complex"); |
3046 | 38 | Extra.mangleType(ElementType, Range, QMM_Escape); |
3047 | | |
3048 | 38 | mangleArtificialTagType(TTK_Struct, TemplateMangling, {"__clang"}); |
3049 | 38 | } |
3050 | | |
3051 | | // Returns true for types that mangleArtificialTagType() gets called for with |
3052 | | // TTK_Union, TTK_Struct, TTK_Class and where compatibility with MSVC's |
3053 | | // mangling matters. |
3054 | | // (It doesn't matter for Objective-C types and the like that cl.exe doesn't |
3055 | | // support.) |
3056 | 22.4k | bool MicrosoftCXXNameMangler::isArtificialTagType(QualType T) const { |
3057 | 22.4k | const Type *ty = T.getTypePtr(); |
3058 | 22.4k | switch (ty->getTypeClass()) { |
3059 | 10.7k | default: |
3060 | 10.7k | return false; |
3061 | | |
3062 | 11.7k | case Type::Vector: { |
3063 | | // For ABI compatibility only __m64, __m128(id), and __m256(id) matter, |
3064 | | // but since mangleType(VectorType*) always calls mangleArtificialTagType() |
3065 | | // just always return true (the other vector types are clang-only). |
3066 | 11.7k | return true; |
3067 | 0 | } |
3068 | 22.4k | } |
3069 | 22.4k | } |
3070 | | |
3071 | | void MicrosoftCXXNameMangler::mangleType(const VectorType *T, Qualifiers Quals, |
3072 | 25.1k | SourceRange Range) { |
3073 | 25.1k | const BuiltinType *ET = T->getElementType()->getAs<BuiltinType>(); |
3074 | 25.1k | assert(ET && "vectors with non-builtin elements are unsupported"); |
3075 | 0 | uint64_t Width = getASTContext().getTypeSize(T); |
3076 | | // Pattern match exactly the typedefs in our intrinsic headers. Anything that |
3077 | | // doesn't match the Intel types uses a custom mangling below. |
3078 | 25.1k | size_t OutSizeBefore = Out.tell(); |
3079 | 25.1k | if (!isa<ExtVectorType>(T)) { |
3080 | 25.1k | if (getASTContext().getTargetInfo().getTriple().isX86()) { |
3081 | 25.1k | if (Width == 64 && ET->getKind() == BuiltinType::LongLong1.41k ) { |
3082 | 1.41k | mangleArtificialTagType(TTK_Union, "__m64"); |
3083 | 23.7k | } else if (Width >= 128) { |
3084 | 23.7k | if (ET->getKind() == BuiltinType::Float) |
3085 | 4.67k | mangleArtificialTagType(TTK_Union, "__m" + llvm::utostr(Width)); |
3086 | 19.0k | else if (ET->getKind() == BuiltinType::LongLong) |
3087 | 14.7k | mangleArtificialTagType(TTK_Union, "__m" + llvm::utostr(Width) + 'i'); |
3088 | 4.31k | else if (ET->getKind() == BuiltinType::Double) |
3089 | 4.17k | mangleArtificialTagType(TTK_Struct, "__m" + llvm::utostr(Width) + 'd'); |
3090 | 23.7k | } |
3091 | 25.1k | } |
3092 | 25.1k | } |
3093 | | |
3094 | 25.1k | bool IsBuiltin = Out.tell() != OutSizeBefore; |
3095 | 25.1k | if (!IsBuiltin) { |
3096 | | // The MS ABI doesn't have a special mangling for vector types, so we define |
3097 | | // our own mangling to handle uses of __vector_size__ on user-specified |
3098 | | // types, and for extensions like __v4sf. |
3099 | | |
3100 | 176 | llvm::SmallString<64> TemplateMangling; |
3101 | 176 | llvm::raw_svector_ostream Stream(TemplateMangling); |
3102 | 176 | MicrosoftCXXNameMangler Extra(Context, Stream); |
3103 | 176 | Stream << "?$"; |
3104 | 176 | Extra.mangleSourceName("__vector"); |
3105 | 176 | Extra.mangleType(QualType(ET, 0), Range, QMM_Escape); |
3106 | 176 | Extra.mangleIntegerLiteral(llvm::APSInt::getUnsigned(T->getNumElements())); |
3107 | | |
3108 | 176 | mangleArtificialTagType(TTK_Union, TemplateMangling, {"__clang"}); |
3109 | 176 | } |
3110 | 25.1k | } |
3111 | | |
3112 | | void MicrosoftCXXNameMangler::mangleType(const ExtVectorType *T, |
3113 | 36 | Qualifiers Quals, SourceRange Range) { |
3114 | 36 | mangleType(static_cast<const VectorType *>(T), Quals, Range); |
3115 | 36 | } |
3116 | | |
3117 | | void MicrosoftCXXNameMangler::mangleType(const DependentVectorType *T, |
3118 | 0 | Qualifiers, SourceRange Range) { |
3119 | 0 | DiagnosticsEngine &Diags = Context.getDiags(); |
3120 | 0 | unsigned DiagID = Diags.getCustomDiagID( |
3121 | 0 | DiagnosticsEngine::Error, |
3122 | 0 | "cannot mangle this dependent-sized vector type yet"); |
3123 | 0 | Diags.Report(Range.getBegin(), DiagID) << Range; |
3124 | 0 | } |
3125 | | |
3126 | | void MicrosoftCXXNameMangler::mangleType(const DependentSizedExtVectorType *T, |
3127 | 0 | Qualifiers, SourceRange Range) { |
3128 | 0 | DiagnosticsEngine &Diags = Context.getDiags(); |
3129 | 0 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, |
3130 | 0 | "cannot mangle this dependent-sized extended vector type yet"); |
3131 | 0 | Diags.Report(Range.getBegin(), DiagID) |
3132 | 0 | << Range; |
3133 | 0 | } |
3134 | | |
3135 | | void MicrosoftCXXNameMangler::mangleType(const ConstantMatrixType *T, |
3136 | 0 | Qualifiers quals, SourceRange Range) { |
3137 | 0 | DiagnosticsEngine &Diags = Context.getDiags(); |
3138 | 0 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, |
3139 | 0 | "Cannot mangle this matrix type yet"); |
3140 | 0 | Diags.Report(Range.getBegin(), DiagID) << Range; |
3141 | 0 | } |
3142 | | |
3143 | | void MicrosoftCXXNameMangler::mangleType(const DependentSizedMatrixType *T, |
3144 | 0 | Qualifiers quals, SourceRange Range) { |
3145 | 0 | DiagnosticsEngine &Diags = Context.getDiags(); |
3146 | 0 | unsigned DiagID = Diags.getCustomDiagID( |
3147 | 0 | DiagnosticsEngine::Error, |
3148 | 0 | "Cannot mangle this dependent-sized matrix type yet"); |
3149 | 0 | Diags.Report(Range.getBegin(), DiagID) << Range; |
3150 | 0 | } |
3151 | | |
3152 | | void MicrosoftCXXNameMangler::mangleType(const DependentAddressSpaceType *T, |
3153 | 0 | Qualifiers, SourceRange Range) { |
3154 | 0 | DiagnosticsEngine &Diags = Context.getDiags(); |
3155 | 0 | unsigned DiagID = Diags.getCustomDiagID( |
3156 | 0 | DiagnosticsEngine::Error, |
3157 | 0 | "cannot mangle this dependent address space type yet"); |
3158 | 0 | Diags.Report(Range.getBegin(), DiagID) << Range; |
3159 | 0 | } |
3160 | | |
3161 | | void MicrosoftCXXNameMangler::mangleType(const ObjCInterfaceType *T, Qualifiers, |
3162 | 24 | SourceRange) { |
3163 | | // ObjC interfaces have structs underlying them. |
3164 | 24 | mangleTagTypeKind(TTK_Struct); |
3165 | 24 | mangleName(T->getDecl()); |
3166 | 24 | } |
3167 | | |
3168 | | void MicrosoftCXXNameMangler::mangleType(const ObjCObjectType *T, |
3169 | 72 | Qualifiers Quals, SourceRange Range) { |
3170 | 72 | if (T->isKindOfType()) |
3171 | 7 | return mangleObjCKindOfType(T, Quals, Range); |
3172 | | |
3173 | 65 | if (T->qual_empty() && !T->isSpecialized()53 ) |
3174 | 51 | return mangleType(T->getBaseType(), Range, QMM_Drop); |
3175 | | |
3176 | 14 | ArgBackRefMap OuterFunArgsContext; |
3177 | 14 | ArgBackRefMap OuterTemplateArgsContext; |
3178 | 14 | BackRefVec OuterTemplateContext; |
3179 | | |
3180 | 14 | FunArgBackReferences.swap(OuterFunArgsContext); |
3181 | 14 | TemplateArgBackReferences.swap(OuterTemplateArgsContext); |
3182 | 14 | NameBackReferences.swap(OuterTemplateContext); |
3183 | | |
3184 | 14 | mangleTagTypeKind(TTK_Struct); |
3185 | | |
3186 | 14 | Out << "?$"; |
3187 | 14 | if (T->isObjCId()) |
3188 | 5 | mangleSourceName("objc_object"); |
3189 | 9 | else if (T->isObjCClass()) |
3190 | 2 | mangleSourceName("objc_class"); |
3191 | 7 | else |
3192 | 7 | mangleSourceName(T->getInterface()->getName()); |
3193 | | |
3194 | 14 | for (const auto &Q : T->quals()) |
3195 | 15 | mangleObjCProtocol(Q); |
3196 | | |
3197 | 14 | if (T->isSpecialized()) |
3198 | 2 | for (const auto &TA : T->getTypeArgs()) |
3199 | 2 | mangleType(TA, Range, QMM_Drop); |
3200 | | |
3201 | 14 | Out << '@'; |
3202 | | |
3203 | 14 | Out << '@'; |
3204 | | |
3205 | 14 | FunArgBackReferences.swap(OuterFunArgsContext); |
3206 | 14 | TemplateArgBackReferences.swap(OuterTemplateArgsContext); |
3207 | 14 | NameBackReferences.swap(OuterTemplateContext); |
3208 | 14 | } |
3209 | | |
3210 | | void MicrosoftCXXNameMangler::mangleType(const BlockPointerType *T, |
3211 | 16 | Qualifiers Quals, SourceRange Range) { |
3212 | 16 | QualType PointeeType = T->getPointeeType(); |
3213 | 16 | manglePointerCVQualifiers(Quals); |
3214 | 16 | manglePointerExtQualifiers(Quals, PointeeType); |
3215 | | |
3216 | 16 | Out << "_E"; |
3217 | | |
3218 | 16 | mangleFunctionType(PointeeType->castAs<FunctionProtoType>()); |
3219 | 16 | } |
3220 | | |
3221 | | void MicrosoftCXXNameMangler::mangleType(const InjectedClassNameType *, |
3222 | 0 | Qualifiers, SourceRange) { |
3223 | 0 | llvm_unreachable("Cannot mangle injected class name type."); |
3224 | 0 | } |
3225 | | |
3226 | | void MicrosoftCXXNameMangler::mangleType(const TemplateSpecializationType *T, |
3227 | 0 | Qualifiers, SourceRange Range) { |
3228 | 0 | DiagnosticsEngine &Diags = Context.getDiags(); |
3229 | 0 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, |
3230 | 0 | "cannot mangle this template specialization type yet"); |
3231 | 0 | Diags.Report(Range.getBegin(), DiagID) |
3232 | 0 | << Range; |
3233 | 0 | } |
3234 | | |
3235 | | void MicrosoftCXXNameMangler::mangleType(const DependentNameType *T, Qualifiers, |
3236 | 0 | SourceRange Range) { |
3237 | 0 | DiagnosticsEngine &Diags = Context.getDiags(); |
3238 | 0 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, |
3239 | 0 | "cannot mangle this dependent name type yet"); |
3240 | 0 | Diags.Report(Range.getBegin(), DiagID) |
3241 | 0 | << Range; |
3242 | 0 | } |
3243 | | |
3244 | | void MicrosoftCXXNameMangler::mangleType( |
3245 | | const DependentTemplateSpecializationType *T, Qualifiers, |
3246 | 0 | SourceRange Range) { |
3247 | 0 | DiagnosticsEngine &Diags = Context.getDiags(); |
3248 | 0 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, |
3249 | 0 | "cannot mangle this dependent template specialization type yet"); |
3250 | 0 | Diags.Report(Range.getBegin(), DiagID) |
3251 | 0 | << Range; |
3252 | 0 | } |
3253 | | |
3254 | | void MicrosoftCXXNameMangler::mangleType(const PackExpansionType *T, Qualifiers, |
3255 | 0 | SourceRange Range) { |
3256 | 0 | DiagnosticsEngine &Diags = Context.getDiags(); |
3257 | 0 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, |
3258 | 0 | "cannot mangle this pack expansion yet"); |
3259 | 0 | Diags.Report(Range.getBegin(), DiagID) |
3260 | 0 | << Range; |
3261 | 0 | } |
3262 | | |
3263 | | void MicrosoftCXXNameMangler::mangleType(const TypeOfType *T, Qualifiers, |
3264 | 0 | SourceRange Range) { |
3265 | 0 | DiagnosticsEngine &Diags = Context.getDiags(); |
3266 | 0 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, |
3267 | 0 | "cannot mangle this typeof(type) yet"); |
3268 | 0 | Diags.Report(Range.getBegin(), DiagID) |
3269 | 0 | << Range; |
3270 | 0 | } |
3271 | | |
3272 | | void MicrosoftCXXNameMangler::mangleType(const TypeOfExprType *T, Qualifiers, |
3273 | 0 | SourceRange Range) { |
3274 | 0 | DiagnosticsEngine &Diags = Context.getDiags(); |
3275 | 0 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, |
3276 | 0 | "cannot mangle this typeof(expression) yet"); |
3277 | 0 | Diags.Report(Range.getBegin(), DiagID) |
3278 | 0 | << Range; |
3279 | 0 | } |
3280 | | |
3281 | | void MicrosoftCXXNameMangler::mangleType(const DecltypeType *T, Qualifiers, |
3282 | 0 | SourceRange Range) { |
3283 | 0 | DiagnosticsEngine &Diags = Context.getDiags(); |
3284 | 0 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, |
3285 | 0 | "cannot mangle this decltype() yet"); |
3286 | 0 | Diags.Report(Range.getBegin(), DiagID) |
3287 | 0 | << Range; |
3288 | 0 | } |
3289 | | |
3290 | | void MicrosoftCXXNameMangler::mangleType(const UnaryTransformType *T, |
3291 | 0 | Qualifiers, SourceRange Range) { |
3292 | 0 | DiagnosticsEngine &Diags = Context.getDiags(); |
3293 | 0 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, |
3294 | 0 | "cannot mangle this unary transform type yet"); |
3295 | 0 | Diags.Report(Range.getBegin(), DiagID) |
3296 | 0 | << Range; |
3297 | 0 | } |
3298 | | |
3299 | | void MicrosoftCXXNameMangler::mangleType(const AutoType *T, Qualifiers, |
3300 | 0 | SourceRange Range) { |
3301 | 0 | assert(T->getDeducedType().isNull() && "expecting a dependent type!"); |
3302 | | |
3303 | 0 | DiagnosticsEngine &Diags = Context.getDiags(); |
3304 | 0 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, |
3305 | 0 | "cannot mangle this 'auto' type yet"); |
3306 | 0 | Diags.Report(Range.getBegin(), DiagID) |
3307 | 0 | << Range; |
3308 | 0 | } |
3309 | | |
3310 | | void MicrosoftCXXNameMangler::mangleType( |
3311 | 0 | const DeducedTemplateSpecializationType *T, Qualifiers, SourceRange Range) { |
3312 | 0 | assert(T->getDeducedType().isNull() && "expecting a dependent type!"); |
3313 | | |
3314 | 0 | DiagnosticsEngine &Diags = Context.getDiags(); |
3315 | 0 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, |
3316 | 0 | "cannot mangle this deduced class template specialization type yet"); |
3317 | 0 | Diags.Report(Range.getBegin(), DiagID) |
3318 | 0 | << Range; |
3319 | 0 | } |
3320 | | |
3321 | | void MicrosoftCXXNameMangler::mangleType(const AtomicType *T, Qualifiers, |
3322 | 3 | SourceRange Range) { |
3323 | 3 | QualType ValueType = T->getValueType(); |
3324 | | |
3325 | 3 | llvm::SmallString<64> TemplateMangling; |
3326 | 3 | llvm::raw_svector_ostream Stream(TemplateMangling); |
3327 | 3 | MicrosoftCXXNameMangler Extra(Context, Stream); |
3328 | 3 | Stream << "?$"; |
3329 | 3 | Extra.mangleSourceName("_Atomic"); |
3330 | 3 | Extra.mangleType(ValueType, Range, QMM_Escape); |
3331 | | |
3332 | 3 | mangleArtificialTagType(TTK_Struct, TemplateMangling, {"__clang"}); |
3333 | 3 | } |
3334 | | |
3335 | | void MicrosoftCXXNameMangler::mangleType(const PipeType *T, Qualifiers, |
3336 | 28 | SourceRange Range) { |
3337 | 28 | QualType ElementType = T->getElementType(); |
3338 | | |
3339 | 28 | llvm::SmallString<64> TemplateMangling; |
3340 | 28 | llvm::raw_svector_ostream Stream(TemplateMangling); |
3341 | 28 | MicrosoftCXXNameMangler Extra(Context, Stream); |
3342 | 28 | Stream << "?$"; |
3343 | 28 | Extra.mangleSourceName("ocl_pipe"); |
3344 | 28 | Extra.mangleType(ElementType, Range, QMM_Escape); |
3345 | 28 | Extra.mangleIntegerLiteral(llvm::APSInt::get(T->isReadOnly())); |
3346 | | |
3347 | 28 | mangleArtificialTagType(TTK_Struct, TemplateMangling, {"__clang"}); |
3348 | 28 | } |
3349 | | |
3350 | | void MicrosoftMangleContextImpl::mangleCXXName(GlobalDecl GD, |
3351 | 26.1k | raw_ostream &Out) { |
3352 | 26.1k | const NamedDecl *D = cast<NamedDecl>(GD.getDecl()); |
3353 | 26.1k | PrettyStackTraceDecl CrashInfo(D, SourceLocation(), |
3354 | 26.1k | getASTContext().getSourceManager(), |
3355 | 26.1k | "Mangling declaration"); |
3356 | | |
3357 | 26.1k | msvc_hashing_ostream MHO(Out); |
3358 | | |
3359 | 26.1k | if (auto *CD = dyn_cast<CXXConstructorDecl>(D)) { |
3360 | 1.62k | auto Type = GD.getCtorType(); |
3361 | 1.62k | MicrosoftCXXNameMangler mangler(*this, MHO, CD, Type); |
3362 | 1.62k | return mangler.mangle(GD); |
3363 | 1.62k | } |
3364 | | |
3365 | 24.5k | if (auto *DD = dyn_cast<CXXDestructorDecl>(D)) { |
3366 | 857 | auto Type = GD.getDtorType(); |
3367 | 857 | MicrosoftCXXNameMangler mangler(*this, MHO, DD, Type); |
3368 | 857 | return mangler.mangle(GD); |
3369 | 857 | } |
3370 | | |
3371 | 23.6k | MicrosoftCXXNameMangler Mangler(*this, MHO); |
3372 | 23.6k | return Mangler.mangle(GD); |
3373 | 24.5k | } |
3374 | | |
3375 | | void MicrosoftCXXNameMangler::mangleType(const BitIntType *T, Qualifiers, |
3376 | 104 | SourceRange Range) { |
3377 | 104 | llvm::SmallString<64> TemplateMangling; |
3378 | 104 | llvm::raw_svector_ostream Stream(TemplateMangling); |
3379 | 104 | MicrosoftCXXNameMangler Extra(Context, Stream); |
3380 | 104 | Stream << "?$"; |
3381 | 104 | if (T->isUnsigned()) |
3382 | 24 | Extra.mangleSourceName("_UBitInt"); |
3383 | 80 | else |
3384 | 80 | Extra.mangleSourceName("_BitInt"); |
3385 | 104 | Extra.mangleIntegerLiteral(llvm::APSInt::getUnsigned(T->getNumBits())); |
3386 | | |
3387 | 104 | mangleArtificialTagType(TTK_Struct, TemplateMangling, {"__clang"}); |
3388 | 104 | } |
3389 | | |
3390 | | void MicrosoftCXXNameMangler::mangleType(const DependentBitIntType *T, |
3391 | 0 | Qualifiers, SourceRange Range) { |
3392 | 0 | DiagnosticsEngine &Diags = Context.getDiags(); |
3393 | 0 | unsigned DiagID = Diags.getCustomDiagID( |
3394 | 0 | DiagnosticsEngine::Error, "cannot mangle this DependentBitInt type yet"); |
3395 | 0 | Diags.Report(Range.getBegin(), DiagID) << Range; |
3396 | 0 | } |
3397 | | |
3398 | | // <this-adjustment> ::= <no-adjustment> | <static-adjustment> | |
3399 | | // <virtual-adjustment> |
3400 | | // <no-adjustment> ::= A # private near |
3401 | | // ::= B # private far |
3402 | | // ::= I # protected near |
3403 | | // ::= J # protected far |
3404 | | // ::= Q # public near |
3405 | | // ::= R # public far |
3406 | | // <static-adjustment> ::= G <static-offset> # private near |
3407 | | // ::= H <static-offset> # private far |
3408 | | // ::= O <static-offset> # protected near |
3409 | | // ::= P <static-offset> # protected far |
3410 | | // ::= W <static-offset> # public near |
3411 | | // ::= X <static-offset> # public far |
3412 | | // <virtual-adjustment> ::= $0 <virtual-shift> <static-offset> # private near |
3413 | | // ::= $1 <virtual-shift> <static-offset> # private far |
3414 | | // ::= $2 <virtual-shift> <static-offset> # protected near |
3415 | | // ::= $3 <virtual-shift> <static-offset> # protected far |
3416 | | // ::= $4 <virtual-shift> <static-offset> # public near |
3417 | | // ::= $5 <virtual-shift> <static-offset> # public far |
3418 | | // <virtual-shift> ::= <vtordisp-shift> | <vtordispex-shift> |
3419 | | // <vtordisp-shift> ::= <offset-to-vtordisp> |
3420 | | // <vtordispex-shift> ::= <offset-to-vbptr> <vbase-offset-offset> |
3421 | | // <offset-to-vtordisp> |
3422 | | static void mangleThunkThisAdjustment(AccessSpecifier AS, |
3423 | | const ThisAdjustment &Adjustment, |
3424 | | MicrosoftCXXNameMangler &Mangler, |
3425 | 385 | raw_ostream &Out) { |
3426 | 385 | if (!Adjustment.Virtual.isEmpty()) { |
3427 | 194 | Out << '$'; |
3428 | 194 | char AccessSpec; |
3429 | 194 | switch (AS) { |
3430 | 0 | case AS_none: |
3431 | 0 | llvm_unreachable("Unsupported access specifier"); |
3432 | 4 | case AS_private: |
3433 | 4 | AccessSpec = '0'; |
3434 | 4 | break; |
3435 | 4 | case AS_protected: |
3436 | 4 | AccessSpec = '2'; |
3437 | 4 | break; |
3438 | 186 | case AS_public: |
3439 | 186 | AccessSpec = '4'; |
3440 | 194 | } |
3441 | 194 | if (Adjustment.Virtual.Microsoft.VBPtrOffset) { |
3442 | 22 | Out << 'R' << AccessSpec; |
3443 | 22 | Mangler.mangleNumber( |
3444 | 22 | static_cast<uint32_t>(Adjustment.Virtual.Microsoft.VBPtrOffset)); |
3445 | 22 | Mangler.mangleNumber( |
3446 | 22 | static_cast<uint32_t>(Adjustment.Virtual.Microsoft.VBOffsetOffset)); |
3447 | 22 | Mangler.mangleNumber( |
3448 | 22 | static_cast<uint32_t>(Adjustment.Virtual.Microsoft.VtordispOffset)); |
3449 | 22 | Mangler.mangleNumber(static_cast<uint32_t>(Adjustment.NonVirtual)); |
3450 | 172 | } else { |
3451 | 172 | Out << AccessSpec; |
3452 | 172 | Mangler.mangleNumber( |
3453 | 172 | static_cast<uint32_t>(Adjustment.Virtual.Microsoft.VtordispOffset)); |
3454 | 172 | Mangler.mangleNumber(-static_cast<uint32_t>(Adjustment.NonVirtual)); |
3455 | 172 | } |
3456 | 194 | } else if (191 Adjustment.NonVirtual != 0191 ) { |
3457 | 153 | switch (AS) { |
3458 | 0 | case AS_none: |
3459 | 0 | llvm_unreachable("Unsupported access specifier"); |
3460 | 10 | case AS_private: |
3461 | 10 | Out << 'G'; |
3462 | 10 | break; |
3463 | 3 | case AS_protected: |
3464 | 3 | Out << 'O'; |
3465 | 3 | break; |
3466 | 140 | case AS_public: |
3467 | 140 | Out << 'W'; |
3468 | 153 | } |
3469 | 153 | Mangler.mangleNumber(-static_cast<uint32_t>(Adjustment.NonVirtual)); |
3470 | 153 | } else { |
3471 | 38 | switch (AS) { |
3472 | 0 | case AS_none: |
3473 | 0 | llvm_unreachable("Unsupported access specifier"); |
3474 | 0 | case AS_private: |
3475 | 0 | Out << 'A'; |
3476 | 0 | break; |
3477 | 0 | case AS_protected: |
3478 | 0 | Out << 'I'; |
3479 | 0 | break; |
3480 | 38 | case AS_public: |
3481 | 38 | Out << 'Q'; |
3482 | 38 | } |
3483 | 38 | } |
3484 | 385 | } |
3485 | | |
3486 | | void MicrosoftMangleContextImpl::mangleVirtualMemPtrThunk( |
3487 | | const CXXMethodDecl *MD, const MethodVFTableLocation &ML, |
3488 | 55 | raw_ostream &Out) { |
3489 | 55 | msvc_hashing_ostream MHO(Out); |
3490 | 55 | MicrosoftCXXNameMangler Mangler(*this, MHO); |
3491 | 55 | Mangler.getStream() << '?'; |
3492 | 55 | Mangler.mangleVirtualMemPtrThunk(MD, ML); |
3493 | 55 | } |
3494 | | |
3495 | | void MicrosoftMangleContextImpl::mangleThunk(const CXXMethodDecl *MD, |
3496 | | const ThunkInfo &Thunk, |
3497 | 215 | raw_ostream &Out) { |
3498 | 215 | msvc_hashing_ostream MHO(Out); |
3499 | 215 | MicrosoftCXXNameMangler Mangler(*this, MHO); |
3500 | 215 | Mangler.getStream() << '?'; |
3501 | 215 | Mangler.mangleName(MD); |
3502 | | |
3503 | | // Usually the thunk uses the access specifier of the new method, but if this |
3504 | | // is a covariant return thunk, then MSVC always uses the public access |
3505 | | // specifier, and we do the same. |
3506 | 215 | AccessSpecifier AS = Thunk.Return.isEmpty() ? MD->getAccess()170 : AS_public45 ; |
3507 | 215 | mangleThunkThisAdjustment(AS, Thunk.This, Mangler, MHO); |
3508 | | |
3509 | 215 | if (!Thunk.Return.isEmpty()) |
3510 | 45 | assert(Thunk.Method != nullptr && |
3511 | 215 | "Thunk info should hold the overridee decl"); |
3512 | | |
3513 | 215 | const CXXMethodDecl *DeclForFPT = Thunk.Method ? Thunk.Method63 : MD152 ; |
3514 | 215 | Mangler.mangleFunctionType( |
3515 | 215 | DeclForFPT->getType()->castAs<FunctionProtoType>(), MD); |
3516 | 215 | } |
3517 | | |
3518 | | void MicrosoftMangleContextImpl::mangleCXXDtorThunk( |
3519 | | const CXXDestructorDecl *DD, CXXDtorType Type, |
3520 | 170 | const ThisAdjustment &Adjustment, raw_ostream &Out) { |
3521 | | // FIXME: Actually, the dtor thunk should be emitted for vector deleting |
3522 | | // dtors rather than scalar deleting dtors. Just use the vector deleting dtor |
3523 | | // mangling manually until we support both deleting dtor types. |
3524 | 170 | assert(Type == Dtor_Deleting); |
3525 | 0 | msvc_hashing_ostream MHO(Out); |
3526 | 170 | MicrosoftCXXNameMangler Mangler(*this, MHO, DD, Type); |
3527 | 170 | Mangler.getStream() << "??_E"; |
3528 | 170 | Mangler.mangleName(DD->getParent()); |
3529 | 170 | mangleThunkThisAdjustment(DD->getAccess(), Adjustment, Mangler, MHO); |
3530 | 170 | Mangler.mangleFunctionType(DD->getType()->castAs<FunctionProtoType>(), DD); |
3531 | 170 | } |
3532 | | |
3533 | | void MicrosoftMangleContextImpl::mangleCXXVFTable( |
3534 | | const CXXRecordDecl *Derived, ArrayRef<const CXXRecordDecl *> BasePath, |
3535 | 1.88k | raw_ostream &Out) { |
3536 | | // <mangled-name> ::= ?_7 <class-name> <storage-class> |
3537 | | // <cvr-qualifiers> [<name>] @ |
3538 | | // NOTE: <cvr-qualifiers> here is always 'B' (const). <storage-class> |
3539 | | // is always '6' for vftables. |
3540 | 1.88k | msvc_hashing_ostream MHO(Out); |
3541 | 1.88k | MicrosoftCXXNameMangler Mangler(*this, MHO); |
3542 | 1.88k | if (Derived->hasAttr<DLLImportAttr>()) |
3543 | 51 | Mangler.getStream() << "??_S"; |
3544 | 1.83k | else |
3545 | 1.83k | Mangler.getStream() << "??_7"; |
3546 | 1.88k | Mangler.mangleName(Derived); |
3547 | 1.88k | Mangler.getStream() << "6B"; // '6' for vftable, 'B' for const. |
3548 | 1.88k | for (const CXXRecordDecl *RD : BasePath) |
3549 | 692 | Mangler.mangleName(RD); |
3550 | 1.88k | Mangler.getStream() << '@'; |
3551 | 1.88k | } |
3552 | | |
3553 | | void MicrosoftMangleContextImpl::mangleCXXVBTable( |
3554 | | const CXXRecordDecl *Derived, ArrayRef<const CXXRecordDecl *> BasePath, |
3555 | 584 | raw_ostream &Out) { |
3556 | | // <mangled-name> ::= ?_8 <class-name> <storage-class> |
3557 | | // <cvr-qualifiers> [<name>] @ |
3558 | | // NOTE: <cvr-qualifiers> here is always 'B' (const). <storage-class> |
3559 | | // is always '7' for vbtables. |
3560 | 584 | msvc_hashing_ostream MHO(Out); |
3561 | 584 | MicrosoftCXXNameMangler Mangler(*this, MHO); |
3562 | 584 | Mangler.getStream() << "??_8"; |
3563 | 584 | Mangler.mangleName(Derived); |
3564 | 584 | Mangler.getStream() << "7B"; // '7' for vbtable, 'B' for const. |
3565 | 584 | for (const CXXRecordDecl *RD : BasePath) |
3566 | 345 | Mangler.mangleName(RD); |
3567 | 584 | Mangler.getStream() << '@'; |
3568 | 584 | } |
3569 | | |
3570 | 805 | void MicrosoftMangleContextImpl::mangleCXXRTTI(QualType T, raw_ostream &Out) { |
3571 | 805 | msvc_hashing_ostream MHO(Out); |
3572 | 805 | MicrosoftCXXNameMangler Mangler(*this, MHO); |
3573 | 805 | Mangler.getStream() << "??_R0"; |
3574 | 805 | Mangler.mangleType(T, SourceRange(), MicrosoftCXXNameMangler::QMM_Result); |
3575 | 805 | Mangler.getStream() << "@8"; |
3576 | 805 | } |
3577 | | |
3578 | | void MicrosoftMangleContextImpl::mangleCXXRTTIName(QualType T, |
3579 | 603 | raw_ostream &Out) { |
3580 | 603 | MicrosoftCXXNameMangler Mangler(*this, Out); |
3581 | 603 | Mangler.getStream() << '.'; |
3582 | 603 | Mangler.mangleType(T, SourceRange(), MicrosoftCXXNameMangler::QMM_Result); |
3583 | 603 | } |
3584 | | |
3585 | | void MicrosoftMangleContextImpl::mangleCXXVirtualDisplacementMap( |
3586 | 4 | const CXXRecordDecl *SrcRD, const CXXRecordDecl *DstRD, raw_ostream &Out) { |
3587 | 4 | msvc_hashing_ostream MHO(Out); |
3588 | 4 | MicrosoftCXXNameMangler Mangler(*this, MHO); |
3589 | 4 | Mangler.getStream() << "??_K"; |
3590 | 4 | Mangler.mangleName(SrcRD); |
3591 | 4 | Mangler.getStream() << "$C"; |
3592 | 4 | Mangler.mangleName(DstRD); |
3593 | 4 | } |
3594 | | |
3595 | | void MicrosoftMangleContextImpl::mangleCXXThrowInfo(QualType T, bool IsConst, |
3596 | | bool IsVolatile, |
3597 | | bool IsUnaligned, |
3598 | | uint32_t NumEntries, |
3599 | 35 | raw_ostream &Out) { |
3600 | 35 | msvc_hashing_ostream MHO(Out); |
3601 | 35 | MicrosoftCXXNameMangler Mangler(*this, MHO); |
3602 | 35 | Mangler.getStream() << "_TI"; |
3603 | 35 | if (IsConst) |
3604 | 3 | Mangler.getStream() << 'C'; |
3605 | 35 | if (IsVolatile) |
3606 | 0 | Mangler.getStream() << 'V'; |
3607 | 35 | if (IsUnaligned) |
3608 | 1 | Mangler.getStream() << 'U'; |
3609 | 35 | Mangler.getStream() << NumEntries; |
3610 | 35 | Mangler.mangleType(T, SourceRange(), MicrosoftCXXNameMangler::QMM_Result); |
3611 | 35 | } |
3612 | | |
3613 | | void MicrosoftMangleContextImpl::mangleCXXCatchableTypeArray( |
3614 | 33 | QualType T, uint32_t NumEntries, raw_ostream &Out) { |
3615 | 33 | msvc_hashing_ostream MHO(Out); |
3616 | 33 | MicrosoftCXXNameMangler Mangler(*this, MHO); |
3617 | 33 | Mangler.getStream() << "_CTA"; |
3618 | 33 | Mangler.getStream() << NumEntries; |
3619 | 33 | Mangler.mangleType(T, SourceRange(), MicrosoftCXXNameMangler::QMM_Result); |
3620 | 33 | } |
3621 | | |
3622 | | void MicrosoftMangleContextImpl::mangleCXXCatchableType( |
3623 | | QualType T, const CXXConstructorDecl *CD, CXXCtorType CT, uint32_t Size, |
3624 | | uint32_t NVOffset, int32_t VBPtrOffset, uint32_t VBIndex, |
3625 | 56 | raw_ostream &Out) { |
3626 | 56 | MicrosoftCXXNameMangler Mangler(*this, Out); |
3627 | 56 | Mangler.getStream() << "_CT"; |
3628 | | |
3629 | 56 | llvm::SmallString<64> RTTIMangling; |
3630 | 56 | { |
3631 | 56 | llvm::raw_svector_ostream Stream(RTTIMangling); |
3632 | 56 | msvc_hashing_ostream MHO(Stream); |
3633 | 56 | mangleCXXRTTI(T, MHO); |
3634 | 56 | } |
3635 | 56 | Mangler.getStream() << RTTIMangling; |
3636 | | |
3637 | | // VS2015 and VS2017.1 omit the copy-constructor in the mangled name but |
3638 | | // both older and newer versions include it. |
3639 | | // FIXME: It is known that the Ctor is present in 2013, and in 2017.7 |
3640 | | // (_MSC_VER 1914) and newer, and that it's omitted in 2015 and 2017.4 |
3641 | | // (_MSC_VER 1911), but it's unknown when exactly it reappeared (1914? |
3642 | | // Or 1912, 1913 already?). |
3643 | 56 | bool OmitCopyCtor = getASTContext().getLangOpts().isCompatibleWithMSVC( |
3644 | 56 | LangOptions::MSVC2015) && |
3645 | 56 | !getASTContext().getLangOpts().isCompatibleWithMSVC( |
3646 | 12 | LangOptions::MSVC2017_7); |
3647 | 56 | llvm::SmallString<64> CopyCtorMangling; |
3648 | 56 | if (!OmitCopyCtor && CD50 ) { |
3649 | 15 | llvm::raw_svector_ostream Stream(CopyCtorMangling); |
3650 | 15 | msvc_hashing_ostream MHO(Stream); |
3651 | 15 | mangleCXXName(GlobalDecl(CD, CT), MHO); |
3652 | 15 | } |
3653 | 56 | Mangler.getStream() << CopyCtorMangling; |
3654 | | |
3655 | 56 | Mangler.getStream() << Size; |
3656 | 56 | if (VBPtrOffset == -1) { |
3657 | 54 | if (NVOffset) { |
3658 | 2 | Mangler.getStream() << NVOffset; |
3659 | 2 | } |
3660 | 54 | } else { |
3661 | 2 | Mangler.getStream() << NVOffset; |
3662 | 2 | Mangler.getStream() << VBPtrOffset; |
3663 | 2 | Mangler.getStream() << VBIndex; |
3664 | 2 | } |
3665 | 56 | } |
3666 | | |
3667 | | void MicrosoftMangleContextImpl::mangleCXXRTTIBaseClassDescriptor( |
3668 | | const CXXRecordDecl *Derived, uint32_t NVOffset, int32_t VBPtrOffset, |
3669 | 484 | uint32_t VBTableOffset, uint32_t Flags, raw_ostream &Out) { |
3670 | 484 | msvc_hashing_ostream MHO(Out); |
3671 | 484 | MicrosoftCXXNameMangler Mangler(*this, MHO); |
3672 | 484 | Mangler.getStream() << "??_R1"; |
3673 | 484 | Mangler.mangleNumber(NVOffset); |
3674 | 484 | Mangler.mangleNumber(VBPtrOffset); |
3675 | 484 | Mangler.mangleNumber(VBTableOffset); |
3676 | 484 | Mangler.mangleNumber(Flags); |
3677 | 484 | Mangler.mangleName(Derived); |
3678 | 484 | Mangler.getStream() << "8"; |
3679 | 484 | } |
3680 | | |
3681 | | void MicrosoftMangleContextImpl::mangleCXXRTTIBaseClassArray( |
3682 | 270 | const CXXRecordDecl *Derived, raw_ostream &Out) { |
3683 | 270 | msvc_hashing_ostream MHO(Out); |
3684 | 270 | MicrosoftCXXNameMangler Mangler(*this, MHO); |
3685 | 270 | Mangler.getStream() << "??_R2"; |
3686 | 270 | Mangler.mangleName(Derived); |
3687 | 270 | Mangler.getStream() << "8"; |
3688 | 270 | } |
3689 | | |
3690 | | void MicrosoftMangleContextImpl::mangleCXXRTTIClassHierarchyDescriptor( |
3691 | 630 | const CXXRecordDecl *Derived, raw_ostream &Out) { |
3692 | 630 | msvc_hashing_ostream MHO(Out); |
3693 | 630 | MicrosoftCXXNameMangler Mangler(*this, MHO); |
3694 | 630 | Mangler.getStream() << "??_R3"; |
3695 | 630 | Mangler.mangleName(Derived); |
3696 | 630 | Mangler.getStream() << "8"; |
3697 | 630 | } |
3698 | | |
3699 | | void MicrosoftMangleContextImpl::mangleCXXRTTICompleteObjectLocator( |
3700 | | const CXXRecordDecl *Derived, ArrayRef<const CXXRecordDecl *> BasePath, |
3701 | 256 | raw_ostream &Out) { |
3702 | | // <mangled-name> ::= ?_R4 <class-name> <storage-class> |
3703 | | // <cvr-qualifiers> [<name>] @ |
3704 | | // NOTE: <cvr-qualifiers> here is always 'B' (const). <storage-class> |
3705 | | // is always '6' for vftables. |
3706 | 256 | llvm::SmallString<64> VFTableMangling; |
3707 | 256 | llvm::raw_svector_ostream Stream(VFTableMangling); |
3708 | 256 | mangleCXXVFTable(Derived, BasePath, Stream); |
3709 | | |
3710 | 256 | if (VFTableMangling.startswith("??@")) { |
3711 | 7 | assert(VFTableMangling.endswith("@")); |
3712 | 0 | Out << VFTableMangling << "??_R4@"; |
3713 | 7 | return; |
3714 | 7 | } |
3715 | | |
3716 | 249 | assert(VFTableMangling.startswith("??_7") || |
3717 | 249 | VFTableMangling.startswith("??_S")); |
3718 | | |
3719 | 0 | Out << "??_R4" << VFTableMangling.str().drop_front(4); |
3720 | 249 | } |
3721 | | |
3722 | | void MicrosoftMangleContextImpl::mangleSEHFilterExpression( |
3723 | 22 | const NamedDecl *EnclosingDecl, raw_ostream &Out) { |
3724 | 22 | msvc_hashing_ostream MHO(Out); |
3725 | 22 | MicrosoftCXXNameMangler Mangler(*this, MHO); |
3726 | | // The function body is in the same comdat as the function with the handler, |
3727 | | // so the numbering here doesn't have to be the same across TUs. |
3728 | | // |
3729 | | // <mangled-name> ::= ?filt$ <filter-number> @0 |
3730 | 22 | Mangler.getStream() << "?filt$" << SEHFilterIds[EnclosingDecl]++ << "@0@"; |
3731 | 22 | Mangler.mangleName(EnclosingDecl); |
3732 | 22 | } |
3733 | | |
3734 | | void MicrosoftMangleContextImpl::mangleSEHFinallyBlock( |
3735 | 78 | const NamedDecl *EnclosingDecl, raw_ostream &Out) { |
3736 | 78 | msvc_hashing_ostream MHO(Out); |
3737 | 78 | MicrosoftCXXNameMangler Mangler(*this, MHO); |
3738 | | // The function body is in the same comdat as the function with the handler, |
3739 | | // so the numbering here doesn't have to be the same across TUs. |
3740 | | // |
3741 | | // <mangled-name> ::= ?fin$ <filter-number> @0 |
3742 | 78 | Mangler.getStream() << "?fin$" << SEHFinallyIds[EnclosingDecl]++ << "@0@"; |
3743 | 78 | Mangler.mangleName(EnclosingDecl); |
3744 | 78 | } |
3745 | | |
3746 | 408 | void MicrosoftMangleContextImpl::mangleTypeName(QualType T, raw_ostream &Out) { |
3747 | | // This is just a made up unique string for the purposes of tbaa. undname |
3748 | | // does *not* know how to demangle it. |
3749 | 408 | MicrosoftCXXNameMangler Mangler(*this, Out); |
3750 | 408 | Mangler.getStream() << '?'; |
3751 | 408 | Mangler.mangleType(T, SourceRange()); |
3752 | 408 | } |
3753 | | |
3754 | | void MicrosoftMangleContextImpl::mangleReferenceTemporary( |
3755 | 5 | const VarDecl *VD, unsigned ManglingNumber, raw_ostream &Out) { |
3756 | 5 | msvc_hashing_ostream MHO(Out); |
3757 | 5 | MicrosoftCXXNameMangler Mangler(*this, MHO); |
3758 | | |
3759 | 5 | Mangler.getStream() << "?$RT" << ManglingNumber << '@'; |
3760 | 5 | Mangler.mangle(VD, ""); |
3761 | 5 | } |
3762 | | |
3763 | | void MicrosoftMangleContextImpl::mangleThreadSafeStaticGuardVariable( |
3764 | 37 | const VarDecl *VD, unsigned GuardNum, raw_ostream &Out) { |
3765 | 37 | msvc_hashing_ostream MHO(Out); |
3766 | 37 | MicrosoftCXXNameMangler Mangler(*this, MHO); |
3767 | | |
3768 | 37 | Mangler.getStream() << "?$TSS" << GuardNum << '@'; |
3769 | 37 | Mangler.mangleNestedName(VD); |
3770 | 37 | Mangler.getStream() << "@4HA"; |
3771 | 37 | } |
3772 | | |
3773 | | void MicrosoftMangleContextImpl::mangleStaticGuardVariable(const VarDecl *VD, |
3774 | 27 | raw_ostream &Out) { |
3775 | | // <guard-name> ::= ?_B <postfix> @5 <scope-depth> |
3776 | | // ::= ?__J <postfix> @5 <scope-depth> |
3777 | | // ::= ?$S <guard-num> @ <postfix> @4IA |
3778 | | |
3779 | | // The first mangling is what MSVC uses to guard static locals in inline |
3780 | | // functions. It uses a different mangling in external functions to support |
3781 | | // guarding more than 32 variables. MSVC rejects inline functions with more |
3782 | | // than 32 static locals. We don't fully implement the second mangling |
3783 | | // because those guards are not externally visible, and instead use LLVM's |
3784 | | // default renaming when creating a new guard variable. |
3785 | 27 | msvc_hashing_ostream MHO(Out); |
3786 | 27 | MicrosoftCXXNameMangler Mangler(*this, MHO); |
3787 | | |
3788 | 27 | bool Visible = VD->isExternallyVisible(); |
3789 | 27 | if (Visible) { |
3790 | 11 | Mangler.getStream() << (VD->getTLSKind() ? "??__J"2 : "??_B"9 ); |
3791 | 16 | } else { |
3792 | 16 | Mangler.getStream() << "?$S1@"; |
3793 | 16 | } |
3794 | 27 | unsigned ScopeDepth = 0; |
3795 | 27 | if (Visible && !getNextDiscriminator(VD, ScopeDepth)11 ) |
3796 | | // If we do not have a discriminator and are emitting a guard variable for |
3797 | | // use at global scope, then mangling the nested name will not be enough to |
3798 | | // remove ambiguities. |
3799 | 0 | Mangler.mangle(VD, ""); |
3800 | 27 | else |
3801 | 27 | Mangler.mangleNestedName(VD); |
3802 | 27 | Mangler.getStream() << (Visible ? "@5"11 : "@4IA"16 ); |
3803 | 27 | if (ScopeDepth) |
3804 | 11 | Mangler.mangleNumber(ScopeDepth); |
3805 | 27 | } |
3806 | | |
3807 | | void MicrosoftMangleContextImpl::mangleInitFiniStub(const VarDecl *D, |
3808 | | char CharCode, |
3809 | 498 | raw_ostream &Out) { |
3810 | 498 | msvc_hashing_ostream MHO(Out); |
3811 | 498 | MicrosoftCXXNameMangler Mangler(*this, MHO); |
3812 | 498 | Mangler.getStream() << "??__" << CharCode; |
3813 | 498 | if (D->isStaticDataMember()) { |
3814 | 46 | Mangler.getStream() << '?'; |
3815 | 46 | Mangler.mangleName(D); |
3816 | 46 | Mangler.mangleVariableEncoding(D); |
3817 | 46 | Mangler.getStream() << "@@"; |
3818 | 452 | } else { |
3819 | 452 | Mangler.mangleName(D); |
3820 | 452 | } |
3821 | | // This is the function class mangling. These stubs are global, non-variadic, |
3822 | | // cdecl functions that return void and take no args. |
3823 | 498 | Mangler.getStream() << "YAXXZ"; |
3824 | 498 | } |
3825 | | |
3826 | | void MicrosoftMangleContextImpl::mangleDynamicInitializer(const VarDecl *D, |
3827 | 326 | raw_ostream &Out) { |
3828 | | // <initializer-name> ::= ?__E <name> YAXXZ |
3829 | 326 | mangleInitFiniStub(D, 'E', Out); |
3830 | 326 | } |
3831 | | |
3832 | | void |
3833 | | MicrosoftMangleContextImpl::mangleDynamicAtExitDestructor(const VarDecl *D, |
3834 | 172 | raw_ostream &Out) { |
3835 | | // <destructor-name> ::= ?__F <name> YAXXZ |
3836 | 172 | mangleInitFiniStub(D, 'F', Out); |
3837 | 172 | } |
3838 | | |
3839 | | void MicrosoftMangleContextImpl::mangleStringLiteral(const StringLiteral *SL, |
3840 | 793 | raw_ostream &Out) { |
3841 | | // <char-type> ::= 0 # char, char16_t, char32_t |
3842 | | // # (little endian char data in mangling) |
3843 | | // ::= 1 # wchar_t (big endian char data in mangling) |
3844 | | // |
3845 | | // <literal-length> ::= <non-negative integer> # the length of the literal |
3846 | | // |
3847 | | // <encoded-crc> ::= <hex digit>+ @ # crc of the literal including |
3848 | | // # trailing null bytes |
3849 | | // |
3850 | | // <encoded-string> ::= <simple character> # uninteresting character |
3851 | | // ::= '?$' <hex digit> <hex digit> # these two nibbles |
3852 | | // # encode the byte for the |
3853 | | // # character |
3854 | | // ::= '?' [a-z] # \xe1 - \xfa |
3855 | | // ::= '?' [A-Z] # \xc1 - \xda |
3856 | | // ::= '?' [0-9] # [,/\:. \n\t'-] |
3857 | | // |
3858 | | // <literal> ::= '??_C@_' <char-type> <literal-length> <encoded-crc> |
3859 | | // <encoded-string> '@' |
3860 | 793 | MicrosoftCXXNameMangler Mangler(*this, Out); |
3861 | 793 | Mangler.getStream() << "??_C@_"; |
3862 | | |
3863 | | // The actual string length might be different from that of the string literal |
3864 | | // in cases like: |
3865 | | // char foo[3] = "foobar"; |
3866 | | // char bar[42] = "foobar"; |
3867 | | // Where it is truncated or zero-padded to fit the array. This is the length |
3868 | | // used for mangling, and any trailing null-bytes also need to be mangled. |
3869 | 793 | unsigned StringLength = getASTContext() |
3870 | 793 | .getAsConstantArrayType(SL->getType()) |
3871 | 793 | ->getSize() |
3872 | 793 | .getZExtValue(); |
3873 | 793 | unsigned StringByteLength = StringLength * SL->getCharByteWidth(); |
3874 | | |
3875 | | // <char-type>: The "kind" of string literal is encoded into the mangled name. |
3876 | 793 | if (SL->isWide()) |
3877 | 206 | Mangler.getStream() << '1'; |
3878 | 587 | else |
3879 | 587 | Mangler.getStream() << '0'; |
3880 | | |
3881 | | // <literal-length>: The next part of the mangled name consists of the length |
3882 | | // of the string in bytes. |
3883 | 793 | Mangler.mangleNumber(StringByteLength); |
3884 | | |
3885 | 6.30k | auto GetLittleEndianByte = [&SL](unsigned Index) { |
3886 | 6.30k | unsigned CharByteWidth = SL->getCharByteWidth(); |
3887 | 6.30k | if (Index / CharByteWidth >= SL->getLength()) |
3888 | 1.64k | return static_cast<char>(0); |
3889 | 4.65k | uint32_t CodeUnit = SL->getCodeUnit(Index / CharByteWidth); |
3890 | 4.65k | unsigned OffsetInCodeUnit = Index % CharByteWidth; |
3891 | 4.65k | return static_cast<char>((CodeUnit >> (8 * OffsetInCodeUnit)) & 0xff); |
3892 | 6.30k | }; |
3893 | | |
3894 | 1.11k | auto GetBigEndianByte = [&SL](unsigned Index) { |
3895 | 1.11k | unsigned CharByteWidth = SL->getCharByteWidth(); |
3896 | 1.11k | if (Index / CharByteWidth >= SL->getLength()) |
3897 | 408 | return static_cast<char>(0); |
3898 | 702 | uint32_t CodeUnit = SL->getCodeUnit(Index / CharByteWidth); |
3899 | 702 | unsigned OffsetInCodeUnit = (CharByteWidth - 1) - (Index % CharByteWidth); |
3900 | 702 | return static_cast<char>((CodeUnit >> (8 * OffsetInCodeUnit)) & 0xff); |
3901 | 1.11k | }; |
3902 | | |
3903 | | // CRC all the bytes of the StringLiteral. |
3904 | 793 | llvm::JamCRC JC; |
3905 | 4.72k | for (unsigned I = 0, E = StringByteLength; I != E; ++I3.93k ) |
3906 | 3.93k | JC.update(GetLittleEndianByte(I)); |
3907 | | |
3908 | | // <encoded-crc>: The CRC is encoded utilizing the standard number mangling |
3909 | | // scheme. |
3910 | 793 | Mangler.mangleNumber(JC.getCRC()); |
3911 | | |
3912 | | // <encoded-string>: The mangled name also contains the first 32 bytes |
3913 | | // (including null-terminator bytes) of the encoded StringLiteral. |
3914 | | // Each character is encoded by splitting them into bytes and then encoding |
3915 | | // the constituent bytes. |
3916 | 3.48k | auto MangleByte = [&Mangler](char Byte) { |
3917 | | // There are five different manglings for characters: |
3918 | | // - [a-zA-Z0-9_$]: A one-to-one mapping. |
3919 | | // - ?[a-z]: The range from \xe1 to \xfa. |
3920 | | // - ?[A-Z]: The range from \xc1 to \xda. |
3921 | | // - ?[0-9]: The set of [,/\:. \n\t'-]. |
3922 | | // - ?$XX: A fallback which maps nibbles. |
3923 | 3.48k | if (isAsciiIdentifierContinue(Byte, /*AllowDollar=*/true)) { |
3924 | 1.27k | Mangler.getStream() << Byte; |
3925 | 2.20k | } else if (isLetter(Byte & 0x7f)) { |
3926 | 107 | Mangler.getStream() << '?' << static_cast<char>(Byte & 0x7f); |
3927 | 2.10k | } else { |
3928 | 2.10k | const char SpecialChars[] = {',', '/', '\\', ':', '.', |
3929 | 2.10k | ' ', '\n', '\t', '\'', '-'}; |
3930 | 2.10k | const char *Pos = llvm::find(SpecialChars, Byte); |
3931 | 2.10k | if (Pos != std::end(SpecialChars)) { |
3932 | 216 | Mangler.getStream() << '?' << (Pos - std::begin(SpecialChars)); |
3933 | 1.88k | } else { |
3934 | 1.88k | Mangler.getStream() << "?$"; |
3935 | 1.88k | Mangler.getStream() << static_cast<char>('A' + ((Byte >> 4) & 0xf)); |
3936 | 1.88k | Mangler.getStream() << static_cast<char>('A' + (Byte & 0xf)); |
3937 | 1.88k | } |
3938 | 2.10k | } |
3939 | 3.48k | }; |
3940 | | |
3941 | | // Enforce our 32 bytes max, except wchar_t which gets 32 chars instead. |
3942 | 793 | unsigned MaxBytesToMangle = SL->isWide() ? 64U206 : 32U587 ; |
3943 | 793 | unsigned NumBytesToMangle = std::min(MaxBytesToMangle, StringByteLength); |
3944 | 4.27k | for (unsigned I = 0; I != NumBytesToMangle; ++I3.48k ) { |
3945 | 3.48k | if (SL->isWide()) |
3946 | 1.11k | MangleByte(GetBigEndianByte(I)); |
3947 | 2.37k | else |
3948 | 2.37k | MangleByte(GetLittleEndianByte(I)); |
3949 | 3.48k | } |
3950 | | |
3951 | 793 | Mangler.getStream() << '@'; |
3952 | 793 | } |
3953 | | |
3954 | | MicrosoftMangleContext *MicrosoftMangleContext::create(ASTContext &Context, |
3955 | | DiagnosticsEngine &Diags, |
3956 | 882 | bool IsAux) { |
3957 | 882 | return new MicrosoftMangleContextImpl(Context, Diags, IsAux); |
3958 | 882 | } |