File: | clang/lib/AST/MicrosoftMangle.cpp |
Warning: | line 2762, column 7 Called C++ object pointer is null |
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1 | //===--- MicrosoftMangle.cpp - Microsoft Visual C++ Name Mangling ---------===// | ||||
2 | // | ||||
3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. | ||||
4 | // See https://llvm.org/LICENSE.txt for license information. | ||||
5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception | ||||
6 | // | ||||
7 | //===----------------------------------------------------------------------===// | ||||
8 | // | ||||
9 | // This provides C++ name mangling targeting the Microsoft Visual C++ ABI. | ||||
10 | // | ||||
11 | //===----------------------------------------------------------------------===// | ||||
12 | |||||
13 | #include "clang/AST/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/Mangle.h" | ||||
25 | #include "clang/AST/VTableBuilder.h" | ||||
26 | #include "clang/Basic/ABI.h" | ||||
27 | #include "clang/Basic/DiagnosticOptions.h" | ||||
28 | #include "clang/Basic/FileManager.h" | ||||
29 | #include "clang/Basic/SourceManager.h" | ||||
30 | #include "clang/Basic/TargetInfo.h" | ||||
31 | #include "llvm/ADT/StringExtras.h" | ||||
32 | #include "llvm/Support/CRC.h" | ||||
33 | #include "llvm/Support/MD5.h" | ||||
34 | #include "llvm/Support/MathExtras.h" | ||||
35 | #include "llvm/Support/StringSaver.h" | ||||
36 | #include "llvm/Support/xxhash.h" | ||||
37 | |||||
38 | using namespace clang; | ||||
39 | |||||
40 | namespace { | ||||
41 | |||||
42 | struct msvc_hashing_ostream : public llvm::raw_svector_ostream { | ||||
43 | raw_ostream &OS; | ||||
44 | llvm::SmallString<64> Buffer; | ||||
45 | |||||
46 | msvc_hashing_ostream(raw_ostream &OS) | ||||
47 | : llvm::raw_svector_ostream(Buffer), OS(OS) {} | ||||
48 | ~msvc_hashing_ostream() override { | ||||
49 | StringRef MangledName = str(); | ||||
50 | bool StartsWithEscape = MangledName.startswith("\01"); | ||||
51 | if (StartsWithEscape) | ||||
52 | MangledName = MangledName.drop_front(1); | ||||
53 | if (MangledName.size() < 4096) { | ||||
54 | OS << str(); | ||||
55 | return; | ||||
56 | } | ||||
57 | |||||
58 | llvm::MD5 Hasher; | ||||
59 | llvm::MD5::MD5Result Hash; | ||||
60 | Hasher.update(MangledName); | ||||
61 | Hasher.final(Hash); | ||||
62 | |||||
63 | SmallString<32> HexString; | ||||
64 | llvm::MD5::stringifyResult(Hash, HexString); | ||||
65 | |||||
66 | if (StartsWithEscape) | ||||
67 | OS << '\01'; | ||||
68 | OS << "??@" << HexString << '@'; | ||||
69 | } | ||||
70 | }; | ||||
71 | |||||
72 | static const DeclContext * | ||||
73 | getLambdaDefaultArgumentDeclContext(const Decl *D) { | ||||
74 | if (const auto *RD = dyn_cast<CXXRecordDecl>(D)) | ||||
75 | if (RD->isLambda()) | ||||
76 | if (const auto *Parm = | ||||
77 | dyn_cast_or_null<ParmVarDecl>(RD->getLambdaContextDecl())) | ||||
78 | return Parm->getDeclContext(); | ||||
79 | return nullptr; | ||||
80 | } | ||||
81 | |||||
82 | /// Retrieve the declaration context that should be used when mangling | ||||
83 | /// the given declaration. | ||||
84 | static const DeclContext *getEffectiveDeclContext(const Decl *D) { | ||||
85 | // The ABI assumes that lambda closure types that occur within | ||||
86 | // default arguments live in the context of the function. However, due to | ||||
87 | // the way in which Clang parses and creates function declarations, this is | ||||
88 | // not the case: the lambda closure type ends up living in the context | ||||
89 | // where the function itself resides, because the function declaration itself | ||||
90 | // had not yet been created. Fix the context here. | ||||
91 | if (const auto *LDADC = getLambdaDefaultArgumentDeclContext(D)) | ||||
92 | return LDADC; | ||||
93 | |||||
94 | // Perform the same check for block literals. | ||||
95 | if (const BlockDecl *BD = dyn_cast<BlockDecl>(D)) { | ||||
96 | if (ParmVarDecl *ContextParam = | ||||
97 | dyn_cast_or_null<ParmVarDecl>(BD->getBlockManglingContextDecl())) | ||||
98 | return ContextParam->getDeclContext(); | ||||
99 | } | ||||
100 | |||||
101 | const DeclContext *DC = D->getDeclContext(); | ||||
102 | if (isa<CapturedDecl>(DC) || isa<OMPDeclareReductionDecl>(DC) || | ||||
103 | isa<OMPDeclareMapperDecl>(DC)) { | ||||
104 | return getEffectiveDeclContext(cast<Decl>(DC)); | ||||
105 | } | ||||
106 | |||||
107 | return DC->getRedeclContext(); | ||||
108 | } | ||||
109 | |||||
110 | static const DeclContext *getEffectiveParentContext(const DeclContext *DC) { | ||||
111 | return getEffectiveDeclContext(cast<Decl>(DC)); | ||||
112 | } | ||||
113 | |||||
114 | static const FunctionDecl *getStructor(const NamedDecl *ND) { | ||||
115 | if (const auto *FTD = dyn_cast<FunctionTemplateDecl>(ND)) | ||||
116 | return FTD->getTemplatedDecl()->getCanonicalDecl(); | ||||
117 | |||||
118 | const auto *FD = cast<FunctionDecl>(ND); | ||||
119 | if (const auto *FTD = FD->getPrimaryTemplate()) | ||||
120 | return FTD->getTemplatedDecl()->getCanonicalDecl(); | ||||
121 | |||||
122 | return FD->getCanonicalDecl(); | ||||
123 | } | ||||
124 | |||||
125 | /// MicrosoftMangleContextImpl - Overrides the default MangleContext for the | ||||
126 | /// Microsoft Visual C++ ABI. | ||||
127 | class MicrosoftMangleContextImpl : public MicrosoftMangleContext { | ||||
128 | typedef std::pair<const DeclContext *, IdentifierInfo *> DiscriminatorKeyTy; | ||||
129 | llvm::DenseMap<DiscriminatorKeyTy, unsigned> Discriminator; | ||||
130 | llvm::DenseMap<const NamedDecl *, unsigned> Uniquifier; | ||||
131 | llvm::DenseMap<const CXXRecordDecl *, unsigned> LambdaIds; | ||||
132 | llvm::DenseMap<const NamedDecl *, unsigned> SEHFilterIds; | ||||
133 | llvm::DenseMap<const NamedDecl *, unsigned> SEHFinallyIds; | ||||
134 | SmallString<16> AnonymousNamespaceHash; | ||||
135 | |||||
136 | public: | ||||
137 | MicrosoftMangleContextImpl(ASTContext &Context, DiagnosticsEngine &Diags); | ||||
138 | bool shouldMangleCXXName(const NamedDecl *D) override; | ||||
139 | bool shouldMangleStringLiteral(const StringLiteral *SL) override; | ||||
140 | void mangleCXXName(GlobalDecl GD, raw_ostream &Out) override; | ||||
141 | void mangleVirtualMemPtrThunk(const CXXMethodDecl *MD, | ||||
142 | const MethodVFTableLocation &ML, | ||||
143 | raw_ostream &Out) override; | ||||
144 | void mangleThunk(const CXXMethodDecl *MD, const ThunkInfo &Thunk, | ||||
145 | raw_ostream &) override; | ||||
146 | void mangleCXXDtorThunk(const CXXDestructorDecl *DD, CXXDtorType Type, | ||||
147 | const ThisAdjustment &ThisAdjustment, | ||||
148 | raw_ostream &) override; | ||||
149 | void mangleCXXVFTable(const CXXRecordDecl *Derived, | ||||
150 | ArrayRef<const CXXRecordDecl *> BasePath, | ||||
151 | raw_ostream &Out) override; | ||||
152 | void mangleCXXVBTable(const CXXRecordDecl *Derived, | ||||
153 | ArrayRef<const CXXRecordDecl *> BasePath, | ||||
154 | raw_ostream &Out) override; | ||||
155 | void mangleCXXVirtualDisplacementMap(const CXXRecordDecl *SrcRD, | ||||
156 | const CXXRecordDecl *DstRD, | ||||
157 | raw_ostream &Out) override; | ||||
158 | void mangleCXXThrowInfo(QualType T, bool IsConst, bool IsVolatile, | ||||
159 | bool IsUnaligned, uint32_t NumEntries, | ||||
160 | raw_ostream &Out) override; | ||||
161 | void mangleCXXCatchableTypeArray(QualType T, uint32_t NumEntries, | ||||
162 | raw_ostream &Out) override; | ||||
163 | void mangleCXXCatchableType(QualType T, const CXXConstructorDecl *CD, | ||||
164 | CXXCtorType CT, uint32_t Size, uint32_t NVOffset, | ||||
165 | int32_t VBPtrOffset, uint32_t VBIndex, | ||||
166 | raw_ostream &Out) override; | ||||
167 | void mangleCXXRTTI(QualType T, raw_ostream &Out) override; | ||||
168 | void mangleCXXRTTIName(QualType T, raw_ostream &Out) override; | ||||
169 | void mangleCXXRTTIBaseClassDescriptor(const CXXRecordDecl *Derived, | ||||
170 | uint32_t NVOffset, int32_t VBPtrOffset, | ||||
171 | uint32_t VBTableOffset, uint32_t Flags, | ||||
172 | raw_ostream &Out) override; | ||||
173 | void mangleCXXRTTIBaseClassArray(const CXXRecordDecl *Derived, | ||||
174 | raw_ostream &Out) override; | ||||
175 | void mangleCXXRTTIClassHierarchyDescriptor(const CXXRecordDecl *Derived, | ||||
176 | raw_ostream &Out) override; | ||||
177 | void | ||||
178 | mangleCXXRTTICompleteObjectLocator(const CXXRecordDecl *Derived, | ||||
179 | ArrayRef<const CXXRecordDecl *> BasePath, | ||||
180 | raw_ostream &Out) override; | ||||
181 | void mangleTypeName(QualType T, raw_ostream &) override; | ||||
182 | void mangleReferenceTemporary(const VarDecl *, unsigned ManglingNumber, | ||||
183 | raw_ostream &) override; | ||||
184 | void mangleStaticGuardVariable(const VarDecl *D, raw_ostream &Out) override; | ||||
185 | void mangleThreadSafeStaticGuardVariable(const VarDecl *D, unsigned GuardNum, | ||||
186 | raw_ostream &Out) override; | ||||
187 | void mangleDynamicInitializer(const VarDecl *D, raw_ostream &Out) override; | ||||
188 | void mangleDynamicAtExitDestructor(const VarDecl *D, | ||||
189 | raw_ostream &Out) override; | ||||
190 | void mangleSEHFilterExpression(const NamedDecl *EnclosingDecl, | ||||
191 | raw_ostream &Out) override; | ||||
192 | void mangleSEHFinallyBlock(const NamedDecl *EnclosingDecl, | ||||
193 | raw_ostream &Out) override; | ||||
194 | void mangleStringLiteral(const StringLiteral *SL, raw_ostream &Out) override; | ||||
195 | bool getNextDiscriminator(const NamedDecl *ND, unsigned &disc) { | ||||
196 | const DeclContext *DC = getEffectiveDeclContext(ND); | ||||
197 | if (!DC->isFunctionOrMethod()) | ||||
198 | return false; | ||||
199 | |||||
200 | // Lambda closure types are already numbered, give out a phony number so | ||||
201 | // that they demangle nicely. | ||||
202 | if (const auto *RD = dyn_cast<CXXRecordDecl>(ND)) { | ||||
203 | if (RD->isLambda()) { | ||||
204 | disc = 1; | ||||
205 | return true; | ||||
206 | } | ||||
207 | } | ||||
208 | |||||
209 | // Use the canonical number for externally visible decls. | ||||
210 | if (ND->isExternallyVisible()) { | ||||
211 | disc = getASTContext().getManglingNumber(ND); | ||||
212 | return true; | ||||
213 | } | ||||
214 | |||||
215 | // Anonymous tags are already numbered. | ||||
216 | if (const TagDecl *Tag = dyn_cast<TagDecl>(ND)) { | ||||
217 | if (!Tag->hasNameForLinkage() && | ||||
218 | !getASTContext().getDeclaratorForUnnamedTagDecl(Tag) && | ||||
219 | !getASTContext().getTypedefNameForUnnamedTagDecl(Tag)) | ||||
220 | return false; | ||||
221 | } | ||||
222 | |||||
223 | // Make up a reasonable number for internal decls. | ||||
224 | unsigned &discriminator = Uniquifier[ND]; | ||||
225 | if (!discriminator) | ||||
226 | discriminator = ++Discriminator[std::make_pair(DC, ND->getIdentifier())]; | ||||
227 | disc = discriminator + 1; | ||||
228 | return true; | ||||
229 | } | ||||
230 | |||||
231 | std::string getLambdaString(const CXXRecordDecl *Lambda) override { | ||||
232 | assert(Lambda->isLambda() && "RD must be a lambda!")((Lambda->isLambda() && "RD must be a lambda!") ? static_cast <void> (0) : __assert_fail ("Lambda->isLambda() && \"RD must be a lambda!\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 232, __PRETTY_FUNCTION__)); | ||||
233 | std::string Name("<lambda_"); | ||||
234 | |||||
235 | Decl *LambdaContextDecl = Lambda->getLambdaContextDecl(); | ||||
236 | unsigned LambdaManglingNumber = Lambda->getLambdaManglingNumber(); | ||||
237 | unsigned LambdaId; | ||||
238 | const ParmVarDecl *Parm = dyn_cast_or_null<ParmVarDecl>(LambdaContextDecl); | ||||
239 | const FunctionDecl *Func = | ||||
240 | Parm ? dyn_cast<FunctionDecl>(Parm->getDeclContext()) : nullptr; | ||||
241 | |||||
242 | if (Func) { | ||||
243 | unsigned DefaultArgNo = | ||||
244 | Func->getNumParams() - Parm->getFunctionScopeIndex(); | ||||
245 | Name += llvm::utostr(DefaultArgNo); | ||||
246 | Name += "_"; | ||||
247 | } | ||||
248 | |||||
249 | if (LambdaManglingNumber) | ||||
250 | LambdaId = LambdaManglingNumber; | ||||
251 | else | ||||
252 | LambdaId = getLambdaIdForDebugInfo(Lambda); | ||||
253 | |||||
254 | Name += llvm::utostr(LambdaId); | ||||
255 | Name += ">"; | ||||
256 | return Name; | ||||
257 | } | ||||
258 | |||||
259 | unsigned getLambdaId(const CXXRecordDecl *RD) { | ||||
260 | assert(RD->isLambda() && "RD must be a lambda!")((RD->isLambda() && "RD must be a lambda!") ? static_cast <void> (0) : __assert_fail ("RD->isLambda() && \"RD must be a lambda!\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 260, __PRETTY_FUNCTION__)); | ||||
261 | assert(!RD->isExternallyVisible() && "RD must not be visible!")((!RD->isExternallyVisible() && "RD must not be visible!" ) ? static_cast<void> (0) : __assert_fail ("!RD->isExternallyVisible() && \"RD must not be visible!\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 261, __PRETTY_FUNCTION__)); | ||||
262 | assert(RD->getLambdaManglingNumber() == 0 &&((RD->getLambdaManglingNumber() == 0 && "RD must not have a mangling number!" ) ? static_cast<void> (0) : __assert_fail ("RD->getLambdaManglingNumber() == 0 && \"RD must not have a mangling number!\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 263, __PRETTY_FUNCTION__)) | ||||
263 | "RD must not have a mangling number!")((RD->getLambdaManglingNumber() == 0 && "RD must not have a mangling number!" ) ? static_cast<void> (0) : __assert_fail ("RD->getLambdaManglingNumber() == 0 && \"RD must not have a mangling number!\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 263, __PRETTY_FUNCTION__)); | ||||
264 | std::pair<llvm::DenseMap<const CXXRecordDecl *, unsigned>::iterator, bool> | ||||
265 | Result = LambdaIds.insert(std::make_pair(RD, LambdaIds.size())); | ||||
266 | return Result.first->second; | ||||
267 | } | ||||
268 | |||||
269 | unsigned getLambdaIdForDebugInfo(const CXXRecordDecl *RD) { | ||||
270 | assert(RD->isLambda() && "RD must be a lambda!")((RD->isLambda() && "RD must be a lambda!") ? static_cast <void> (0) : __assert_fail ("RD->isLambda() && \"RD must be a lambda!\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 270, __PRETTY_FUNCTION__)); | ||||
271 | assert(!RD->isExternallyVisible() && "RD must not be visible!")((!RD->isExternallyVisible() && "RD must not be visible!" ) ? static_cast<void> (0) : __assert_fail ("!RD->isExternallyVisible() && \"RD must not be visible!\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 271, __PRETTY_FUNCTION__)); | ||||
272 | assert(RD->getLambdaManglingNumber() == 0 &&((RD->getLambdaManglingNumber() == 0 && "RD must not have a mangling number!" ) ? static_cast<void> (0) : __assert_fail ("RD->getLambdaManglingNumber() == 0 && \"RD must not have a mangling number!\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 273, __PRETTY_FUNCTION__)) | ||||
273 | "RD must not have a mangling number!")((RD->getLambdaManglingNumber() == 0 && "RD must not have a mangling number!" ) ? static_cast<void> (0) : __assert_fail ("RD->getLambdaManglingNumber() == 0 && \"RD must not have a mangling number!\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 273, __PRETTY_FUNCTION__)); | ||||
274 | llvm::DenseMap<const CXXRecordDecl *, unsigned>::iterator Result = | ||||
275 | LambdaIds.find(RD); | ||||
276 | // The lambda should exist, but return 0 in case it doesn't. | ||||
277 | if (Result == LambdaIds.end()) | ||||
278 | return 0; | ||||
279 | return Result->second; | ||||
280 | } | ||||
281 | |||||
282 | /// Return a character sequence that is (somewhat) unique to the TU suitable | ||||
283 | /// for mangling anonymous namespaces. | ||||
284 | StringRef getAnonymousNamespaceHash() const { | ||||
285 | return AnonymousNamespaceHash; | ||||
286 | } | ||||
287 | |||||
288 | private: | ||||
289 | void mangleInitFiniStub(const VarDecl *D, char CharCode, raw_ostream &Out); | ||||
290 | }; | ||||
291 | |||||
292 | /// MicrosoftCXXNameMangler - Manage the mangling of a single name for the | ||||
293 | /// Microsoft Visual C++ ABI. | ||||
294 | class MicrosoftCXXNameMangler { | ||||
295 | MicrosoftMangleContextImpl &Context; | ||||
296 | raw_ostream &Out; | ||||
297 | |||||
298 | /// The "structor" is the top-level declaration being mangled, if | ||||
299 | /// that's not a template specialization; otherwise it's the pattern | ||||
300 | /// for that specialization. | ||||
301 | const NamedDecl *Structor; | ||||
302 | unsigned StructorType; | ||||
303 | |||||
304 | typedef llvm::SmallVector<std::string, 10> BackRefVec; | ||||
305 | BackRefVec NameBackReferences; | ||||
306 | |||||
307 | typedef llvm::DenseMap<const void *, unsigned> ArgBackRefMap; | ||||
308 | ArgBackRefMap FunArgBackReferences; | ||||
309 | ArgBackRefMap TemplateArgBackReferences; | ||||
310 | |||||
311 | typedef llvm::DenseMap<const void *, StringRef> TemplateArgStringMap; | ||||
312 | TemplateArgStringMap TemplateArgStrings; | ||||
313 | llvm::StringSaver TemplateArgStringStorage; | ||||
314 | llvm::BumpPtrAllocator TemplateArgStringStorageAlloc; | ||||
315 | |||||
316 | typedef std::set<std::pair<int, bool>> PassObjectSizeArgsSet; | ||||
317 | PassObjectSizeArgsSet PassObjectSizeArgs; | ||||
318 | |||||
319 | ASTContext &getASTContext() const { return Context.getASTContext(); } | ||||
320 | |||||
321 | const bool PointersAre64Bit; | ||||
322 | |||||
323 | public: | ||||
324 | enum QualifierMangleMode { QMM_Drop, QMM_Mangle, QMM_Escape, QMM_Result }; | ||||
325 | |||||
326 | MicrosoftCXXNameMangler(MicrosoftMangleContextImpl &C, raw_ostream &Out_) | ||||
327 | : Context(C), Out(Out_), Structor(nullptr), StructorType(-1), | ||||
328 | TemplateArgStringStorage(TemplateArgStringStorageAlloc), | ||||
329 | PointersAre64Bit(C.getASTContext().getTargetInfo().getPointerWidth(0) == | ||||
330 | 64) {} | ||||
331 | |||||
332 | MicrosoftCXXNameMangler(MicrosoftMangleContextImpl &C, raw_ostream &Out_, | ||||
333 | const CXXConstructorDecl *D, CXXCtorType Type) | ||||
334 | : Context(C), Out(Out_), Structor(getStructor(D)), StructorType(Type), | ||||
335 | TemplateArgStringStorage(TemplateArgStringStorageAlloc), | ||||
336 | PointersAre64Bit(C.getASTContext().getTargetInfo().getPointerWidth(0) == | ||||
337 | 64) {} | ||||
338 | |||||
339 | MicrosoftCXXNameMangler(MicrosoftMangleContextImpl &C, raw_ostream &Out_, | ||||
340 | const CXXDestructorDecl *D, CXXDtorType Type) | ||||
341 | : Context(C), Out(Out_), Structor(getStructor(D)), StructorType(Type), | ||||
342 | TemplateArgStringStorage(TemplateArgStringStorageAlloc), | ||||
343 | PointersAre64Bit(C.getASTContext().getTargetInfo().getPointerWidth(0) == | ||||
344 | 64) {} | ||||
345 | |||||
346 | raw_ostream &getStream() const { return Out; } | ||||
347 | |||||
348 | void mangle(const NamedDecl *D, StringRef Prefix = "?"); | ||||
349 | void mangleName(const NamedDecl *ND); | ||||
350 | void mangleFunctionEncoding(const FunctionDecl *FD, bool ShouldMangle); | ||||
351 | void mangleVariableEncoding(const VarDecl *VD); | ||||
352 | void mangleMemberDataPointer(const CXXRecordDecl *RD, const ValueDecl *VD, | ||||
353 | StringRef Prefix = "$"); | ||||
354 | void mangleMemberFunctionPointer(const CXXRecordDecl *RD, | ||||
355 | const CXXMethodDecl *MD, | ||||
356 | StringRef Prefix = "$"); | ||||
357 | void mangleVirtualMemPtrThunk(const CXXMethodDecl *MD, | ||||
358 | const MethodVFTableLocation &ML); | ||||
359 | void mangleNumber(int64_t Number); | ||||
360 | void mangleNumber(llvm::APSInt Number); | ||||
361 | void mangleFloat(llvm::APFloat Number); | ||||
362 | void mangleBits(llvm::APInt Number); | ||||
363 | void mangleTagTypeKind(TagTypeKind TK); | ||||
364 | void mangleArtificialTagType(TagTypeKind TK, StringRef UnqualifiedName, | ||||
365 | ArrayRef<StringRef> NestedNames = None); | ||||
366 | void mangleAddressSpaceType(QualType T, Qualifiers Quals, SourceRange Range); | ||||
367 | void mangleType(QualType T, SourceRange Range, | ||||
368 | QualifierMangleMode QMM = QMM_Mangle); | ||||
369 | void mangleFunctionType(const FunctionType *T, | ||||
370 | const FunctionDecl *D = nullptr, | ||||
371 | bool ForceThisQuals = false, | ||||
372 | bool MangleExceptionSpec = true); | ||||
373 | void mangleNestedName(const NamedDecl *ND); | ||||
374 | |||||
375 | private: | ||||
376 | bool isStructorDecl(const NamedDecl *ND) const { | ||||
377 | return ND == Structor || getStructor(ND) == Structor; | ||||
378 | } | ||||
379 | |||||
380 | bool is64BitPointer(Qualifiers Quals) const { | ||||
381 | LangAS AddrSpace = Quals.getAddressSpace(); | ||||
382 | return AddrSpace == LangAS::ptr64 || | ||||
383 | (PointersAre64Bit && !(AddrSpace == LangAS::ptr32_sptr || | ||||
384 | AddrSpace == LangAS::ptr32_uptr)); | ||||
385 | } | ||||
386 | |||||
387 | void mangleUnqualifiedName(const NamedDecl *ND) { | ||||
388 | mangleUnqualifiedName(ND, ND->getDeclName()); | ||||
389 | } | ||||
390 | void mangleUnqualifiedName(const NamedDecl *ND, DeclarationName Name); | ||||
391 | void mangleSourceName(StringRef Name); | ||||
392 | void mangleOperatorName(OverloadedOperatorKind OO, SourceLocation Loc); | ||||
393 | void mangleCXXDtorType(CXXDtorType T); | ||||
394 | void mangleQualifiers(Qualifiers Quals, bool IsMember); | ||||
395 | void mangleRefQualifier(RefQualifierKind RefQualifier); | ||||
396 | void manglePointerCVQualifiers(Qualifiers Quals); | ||||
397 | void manglePointerExtQualifiers(Qualifiers Quals, QualType PointeeType); | ||||
398 | |||||
399 | void mangleUnscopedTemplateName(const TemplateDecl *ND); | ||||
400 | void | ||||
401 | mangleTemplateInstantiationName(const TemplateDecl *TD, | ||||
402 | const TemplateArgumentList &TemplateArgs); | ||||
403 | void mangleObjCMethodName(const ObjCMethodDecl *MD); | ||||
404 | |||||
405 | void mangleFunctionArgumentType(QualType T, SourceRange Range); | ||||
406 | void manglePassObjectSizeArg(const PassObjectSizeAttr *POSA); | ||||
407 | |||||
408 | bool isArtificialTagType(QualType T) const; | ||||
409 | |||||
410 | // Declare manglers for every type class. | ||||
411 | #define ABSTRACT_TYPE(CLASS, PARENT) | ||||
412 | #define NON_CANONICAL_TYPE(CLASS, PARENT) | ||||
413 | #define TYPE(CLASS, PARENT) void mangleType(const CLASS##Type *T, \ | ||||
414 | Qualifiers Quals, \ | ||||
415 | SourceRange Range); | ||||
416 | #include "clang/AST/TypeNodes.inc" | ||||
417 | #undef ABSTRACT_TYPE | ||||
418 | #undef NON_CANONICAL_TYPE | ||||
419 | #undef TYPE | ||||
420 | |||||
421 | void mangleType(const TagDecl *TD); | ||||
422 | void mangleDecayedArrayType(const ArrayType *T); | ||||
423 | void mangleArrayType(const ArrayType *T); | ||||
424 | void mangleFunctionClass(const FunctionDecl *FD); | ||||
425 | void mangleCallingConvention(CallingConv CC); | ||||
426 | void mangleCallingConvention(const FunctionType *T); | ||||
427 | void mangleIntegerLiteral(const llvm::APSInt &Number, | ||||
428 | const NonTypeTemplateParmDecl *PD = nullptr, | ||||
429 | QualType TemplateArgType = QualType()); | ||||
430 | void mangleExpression(const Expr *E, const NonTypeTemplateParmDecl *PD); | ||||
431 | void mangleThrowSpecification(const FunctionProtoType *T); | ||||
432 | |||||
433 | void mangleTemplateArgs(const TemplateDecl *TD, | ||||
434 | const TemplateArgumentList &TemplateArgs); | ||||
435 | void mangleTemplateArg(const TemplateDecl *TD, const TemplateArgument &TA, | ||||
436 | const NamedDecl *Parm); | ||||
437 | void mangleTemplateArgValue(QualType T, const APValue &V, | ||||
438 | bool WithScalarType = false); | ||||
439 | |||||
440 | void mangleObjCProtocol(const ObjCProtocolDecl *PD); | ||||
441 | void mangleObjCLifetime(const QualType T, Qualifiers Quals, | ||||
442 | SourceRange Range); | ||||
443 | void mangleObjCKindOfType(const ObjCObjectType *T, Qualifiers Quals, | ||||
444 | SourceRange Range); | ||||
445 | }; | ||||
446 | } | ||||
447 | |||||
448 | MicrosoftMangleContextImpl::MicrosoftMangleContextImpl(ASTContext &Context, | ||||
449 | DiagnosticsEngine &Diags) | ||||
450 | : MicrosoftMangleContext(Context, Diags) { | ||||
451 | // To mangle anonymous namespaces, hash the path to the main source file. The | ||||
452 | // path should be whatever (probably relative) path was passed on the command | ||||
453 | // line. The goal is for the compiler to produce the same output regardless of | ||||
454 | // working directory, so use the uncanonicalized relative path. | ||||
455 | // | ||||
456 | // It's important to make the mangled names unique because, when CodeView | ||||
457 | // debug info is in use, the debugger uses mangled type names to distinguish | ||||
458 | // between otherwise identically named types in anonymous namespaces. | ||||
459 | // | ||||
460 | // These symbols are always internal, so there is no need for the hash to | ||||
461 | // match what MSVC produces. For the same reason, clang is free to change the | ||||
462 | // hash at any time without breaking compatibility with old versions of clang. | ||||
463 | // The generated names are intended to look similar to what MSVC generates, | ||||
464 | // which are something like "?A0x01234567@". | ||||
465 | SourceManager &SM = Context.getSourceManager(); | ||||
466 | if (const FileEntry *FE = SM.getFileEntryForID(SM.getMainFileID())) { | ||||
467 | // Truncate the hash so we get 8 characters of hexadecimal. | ||||
468 | uint32_t TruncatedHash = uint32_t(xxHash64(FE->getName())); | ||||
469 | AnonymousNamespaceHash = llvm::utohexstr(TruncatedHash); | ||||
470 | } else { | ||||
471 | // If we don't have a path to the main file, we'll just use 0. | ||||
472 | AnonymousNamespaceHash = "0"; | ||||
473 | } | ||||
474 | } | ||||
475 | |||||
476 | bool MicrosoftMangleContextImpl::shouldMangleCXXName(const NamedDecl *D) { | ||||
477 | if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) { | ||||
478 | LanguageLinkage L = FD->getLanguageLinkage(); | ||||
479 | // Overloadable functions need mangling. | ||||
480 | if (FD->hasAttr<OverloadableAttr>()) | ||||
481 | return true; | ||||
482 | |||||
483 | // The ABI expects that we would never mangle "typical" user-defined entry | ||||
484 | // points regardless of visibility or freestanding-ness. | ||||
485 | // | ||||
486 | // N.B. This is distinct from asking about "main". "main" has a lot of | ||||
487 | // special rules associated with it in the standard while these | ||||
488 | // user-defined entry points are outside of the purview of the standard. | ||||
489 | // For example, there can be only one definition for "main" in a standards | ||||
490 | // compliant program; however nothing forbids the existence of wmain and | ||||
491 | // WinMain in the same translation unit. | ||||
492 | if (FD->isMSVCRTEntryPoint()) | ||||
493 | return false; | ||||
494 | |||||
495 | // C++ functions and those whose names are not a simple identifier need | ||||
496 | // mangling. | ||||
497 | if (!FD->getDeclName().isIdentifier() || L == CXXLanguageLinkage) | ||||
498 | return true; | ||||
499 | |||||
500 | // C functions are not mangled. | ||||
501 | if (L == CLanguageLinkage) | ||||
502 | return false; | ||||
503 | } | ||||
504 | |||||
505 | // Otherwise, no mangling is done outside C++ mode. | ||||
506 | if (!getASTContext().getLangOpts().CPlusPlus) | ||||
507 | return false; | ||||
508 | |||||
509 | const VarDecl *VD = dyn_cast<VarDecl>(D); | ||||
510 | if (VD && !isa<DecompositionDecl>(D)) { | ||||
511 | // C variables are not mangled. | ||||
512 | if (VD->isExternC()) | ||||
513 | return false; | ||||
514 | |||||
515 | // Variables at global scope with internal linkage are not mangled. | ||||
516 | const DeclContext *DC = getEffectiveDeclContext(D); | ||||
517 | // Check for extern variable declared locally. | ||||
518 | if (DC->isFunctionOrMethod() && D->hasLinkage()) | ||||
519 | while (!DC->isNamespace() && !DC->isTranslationUnit()) | ||||
520 | DC = getEffectiveParentContext(DC); | ||||
521 | |||||
522 | if (DC->isTranslationUnit() && D->getFormalLinkage() == InternalLinkage && | ||||
523 | !isa<VarTemplateSpecializationDecl>(D) && | ||||
524 | D->getIdentifier() != nullptr) | ||||
525 | return false; | ||||
526 | } | ||||
527 | |||||
528 | return true; | ||||
529 | } | ||||
530 | |||||
531 | bool | ||||
532 | MicrosoftMangleContextImpl::shouldMangleStringLiteral(const StringLiteral *SL) { | ||||
533 | return true; | ||||
534 | } | ||||
535 | |||||
536 | void MicrosoftCXXNameMangler::mangle(const NamedDecl *D, StringRef Prefix) { | ||||
537 | // MSVC doesn't mangle C++ names the same way it mangles extern "C" names. | ||||
538 | // Therefore it's really important that we don't decorate the | ||||
539 | // name with leading underscores or leading/trailing at signs. So, by | ||||
540 | // default, we emit an asm marker at the start so we get the name right. | ||||
541 | // Callers can override this with a custom prefix. | ||||
542 | |||||
543 | // <mangled-name> ::= ? <name> <type-encoding> | ||||
544 | Out << Prefix; | ||||
545 | mangleName(D); | ||||
546 | if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) | ||||
547 | mangleFunctionEncoding(FD, Context.shouldMangleDeclName(FD)); | ||||
548 | else if (const VarDecl *VD = dyn_cast<VarDecl>(D)) | ||||
549 | mangleVariableEncoding(VD); | ||||
550 | else if (isa<MSGuidDecl>(D)) | ||||
551 | // MSVC appears to mangle GUIDs as if they were variables of type | ||||
552 | // 'const struct __s_GUID'. | ||||
553 | Out << "3U__s_GUID@@B"; | ||||
554 | else if (isa<TemplateParamObjectDecl>(D)) { | ||||
555 | // Template parameter objects don't get a <type-encoding>; their type is | ||||
556 | // specified as part of their value. | ||||
557 | } else | ||||
558 | llvm_unreachable("Tried to mangle unexpected NamedDecl!")::llvm::llvm_unreachable_internal("Tried to mangle unexpected NamedDecl!" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 558); | ||||
559 | } | ||||
560 | |||||
561 | void MicrosoftCXXNameMangler::mangleFunctionEncoding(const FunctionDecl *FD, | ||||
562 | bool ShouldMangle) { | ||||
563 | // <type-encoding> ::= <function-class> <function-type> | ||||
564 | |||||
565 | // Since MSVC operates on the type as written and not the canonical type, it | ||||
566 | // actually matters which decl we have here. MSVC appears to choose the | ||||
567 | // first, since it is most likely to be the declaration in a header file. | ||||
568 | FD = FD->getFirstDecl(); | ||||
569 | |||||
570 | // We should never ever see a FunctionNoProtoType at this point. | ||||
571 | // We don't even know how to mangle their types anyway :). | ||||
572 | const FunctionProtoType *FT = FD->getType()->castAs<FunctionProtoType>(); | ||||
573 | |||||
574 | // extern "C" functions can hold entities that must be mangled. | ||||
575 | // As it stands, these functions still need to get expressed in the full | ||||
576 | // external name. They have their class and type omitted, replaced with '9'. | ||||
577 | if (ShouldMangle) { | ||||
578 | // We would like to mangle all extern "C" functions using this additional | ||||
579 | // component but this would break compatibility with MSVC's behavior. | ||||
580 | // Instead, do this when we know that compatibility isn't important (in | ||||
581 | // other words, when it is an overloaded extern "C" function). | ||||
582 | if (FD->isExternC() && FD->hasAttr<OverloadableAttr>()) | ||||
583 | Out << "$$J0"; | ||||
584 | |||||
585 | mangleFunctionClass(FD); | ||||
586 | |||||
587 | mangleFunctionType(FT, FD, false, false); | ||||
588 | } else { | ||||
589 | Out << '9'; | ||||
590 | } | ||||
591 | } | ||||
592 | |||||
593 | void MicrosoftCXXNameMangler::mangleVariableEncoding(const VarDecl *VD) { | ||||
594 | // <type-encoding> ::= <storage-class> <variable-type> | ||||
595 | // <storage-class> ::= 0 # private static member | ||||
596 | // ::= 1 # protected static member | ||||
597 | // ::= 2 # public static member | ||||
598 | // ::= 3 # global | ||||
599 | // ::= 4 # static local | ||||
600 | |||||
601 | // The first character in the encoding (after the name) is the storage class. | ||||
602 | if (VD->isStaticDataMember()) { | ||||
603 | // If it's a static member, it also encodes the access level. | ||||
604 | switch (VD->getAccess()) { | ||||
605 | default: | ||||
606 | case AS_private: Out << '0'; break; | ||||
607 | case AS_protected: Out << '1'; break; | ||||
608 | case AS_public: Out << '2'; break; | ||||
609 | } | ||||
610 | } | ||||
611 | else if (!VD->isStaticLocal()) | ||||
612 | Out << '3'; | ||||
613 | else | ||||
614 | Out << '4'; | ||||
615 | // Now mangle the type. | ||||
616 | // <variable-type> ::= <type> <cvr-qualifiers> | ||||
617 | // ::= <type> <pointee-cvr-qualifiers> # pointers, references | ||||
618 | // Pointers and references are odd. The type of 'int * const foo;' gets | ||||
619 | // mangled as 'QAHA' instead of 'PAHB', for example. | ||||
620 | SourceRange SR = VD->getSourceRange(); | ||||
621 | QualType Ty = VD->getType(); | ||||
622 | if (Ty->isPointerType() || Ty->isReferenceType() || | ||||
623 | Ty->isMemberPointerType()) { | ||||
624 | mangleType(Ty, SR, QMM_Drop); | ||||
625 | manglePointerExtQualifiers( | ||||
626 | Ty.getDesugaredType(getASTContext()).getLocalQualifiers(), QualType()); | ||||
627 | if (const MemberPointerType *MPT = Ty->getAs<MemberPointerType>()) { | ||||
628 | mangleQualifiers(MPT->getPointeeType().getQualifiers(), true); | ||||
629 | // Member pointers are suffixed with a back reference to the member | ||||
630 | // pointer's class name. | ||||
631 | mangleName(MPT->getClass()->getAsCXXRecordDecl()); | ||||
632 | } else | ||||
633 | mangleQualifiers(Ty->getPointeeType().getQualifiers(), false); | ||||
634 | } else if (const ArrayType *AT = getASTContext().getAsArrayType(Ty)) { | ||||
635 | // Global arrays are funny, too. | ||||
636 | mangleDecayedArrayType(AT); | ||||
637 | if (AT->getElementType()->isArrayType()) | ||||
638 | Out << 'A'; | ||||
639 | else | ||||
640 | mangleQualifiers(Ty.getQualifiers(), false); | ||||
641 | } else { | ||||
642 | mangleType(Ty, SR, QMM_Drop); | ||||
643 | mangleQualifiers(Ty.getQualifiers(), false); | ||||
644 | } | ||||
645 | } | ||||
646 | |||||
647 | void MicrosoftCXXNameMangler::mangleMemberDataPointer(const CXXRecordDecl *RD, | ||||
648 | const ValueDecl *VD, | ||||
649 | StringRef Prefix) { | ||||
650 | // <member-data-pointer> ::= <integer-literal> | ||||
651 | // ::= $F <number> <number> | ||||
652 | // ::= $G <number> <number> <number> | ||||
653 | |||||
654 | int64_t FieldOffset; | ||||
655 | int64_t VBTableOffset; | ||||
656 | MSInheritanceModel IM = RD->getMSInheritanceModel(); | ||||
657 | if (VD) { | ||||
658 | FieldOffset = getASTContext().getFieldOffset(VD); | ||||
659 | assert(FieldOffset % getASTContext().getCharWidth() == 0 &&((FieldOffset % getASTContext().getCharWidth() == 0 && "cannot take address of bitfield") ? static_cast<void> (0) : __assert_fail ("FieldOffset % getASTContext().getCharWidth() == 0 && \"cannot take address of bitfield\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 660, __PRETTY_FUNCTION__)) | ||||
660 | "cannot take address of bitfield")((FieldOffset % getASTContext().getCharWidth() == 0 && "cannot take address of bitfield") ? static_cast<void> (0) : __assert_fail ("FieldOffset % getASTContext().getCharWidth() == 0 && \"cannot take address of bitfield\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 660, __PRETTY_FUNCTION__)); | ||||
661 | FieldOffset /= getASTContext().getCharWidth(); | ||||
662 | |||||
663 | VBTableOffset = 0; | ||||
664 | |||||
665 | if (IM == MSInheritanceModel::Virtual) | ||||
666 | FieldOffset -= getASTContext().getOffsetOfBaseWithVBPtr(RD).getQuantity(); | ||||
667 | } else { | ||||
668 | FieldOffset = RD->nullFieldOffsetIsZero() ? 0 : -1; | ||||
669 | |||||
670 | VBTableOffset = -1; | ||||
671 | } | ||||
672 | |||||
673 | char Code = '\0'; | ||||
674 | switch (IM) { | ||||
675 | case MSInheritanceModel::Single: Code = '0'; break; | ||||
676 | case MSInheritanceModel::Multiple: Code = '0'; break; | ||||
677 | case MSInheritanceModel::Virtual: Code = 'F'; break; | ||||
678 | case MSInheritanceModel::Unspecified: Code = 'G'; break; | ||||
679 | } | ||||
680 | |||||
681 | Out << Prefix << Code; | ||||
682 | |||||
683 | mangleNumber(FieldOffset); | ||||
684 | |||||
685 | // The C++ standard doesn't allow base-to-derived member pointer conversions | ||||
686 | // in template parameter contexts, so the vbptr offset of data member pointers | ||||
687 | // is always zero. | ||||
688 | if (inheritanceModelHasVBPtrOffsetField(IM)) | ||||
689 | mangleNumber(0); | ||||
690 | if (inheritanceModelHasVBTableOffsetField(IM)) | ||||
691 | mangleNumber(VBTableOffset); | ||||
692 | } | ||||
693 | |||||
694 | void | ||||
695 | MicrosoftCXXNameMangler::mangleMemberFunctionPointer(const CXXRecordDecl *RD, | ||||
696 | const CXXMethodDecl *MD, | ||||
697 | StringRef Prefix) { | ||||
698 | // <member-function-pointer> ::= $1? <name> | ||||
699 | // ::= $H? <name> <number> | ||||
700 | // ::= $I? <name> <number> <number> | ||||
701 | // ::= $J? <name> <number> <number> <number> | ||||
702 | |||||
703 | MSInheritanceModel IM = RD->getMSInheritanceModel(); | ||||
704 | |||||
705 | char Code = '\0'; | ||||
706 | switch (IM) { | ||||
707 | case MSInheritanceModel::Single: Code = '1'; break; | ||||
708 | case MSInheritanceModel::Multiple: Code = 'H'; break; | ||||
709 | case MSInheritanceModel::Virtual: Code = 'I'; break; | ||||
710 | case MSInheritanceModel::Unspecified: Code = 'J'; break; | ||||
711 | } | ||||
712 | |||||
713 | // If non-virtual, mangle the name. If virtual, mangle as a virtual memptr | ||||
714 | // thunk. | ||||
715 | uint64_t NVOffset = 0; | ||||
716 | uint64_t VBTableOffset = 0; | ||||
717 | uint64_t VBPtrOffset = 0; | ||||
718 | if (MD) { | ||||
719 | Out << Prefix << Code << '?'; | ||||
720 | if (MD->isVirtual()) { | ||||
721 | MicrosoftVTableContext *VTContext = | ||||
722 | cast<MicrosoftVTableContext>(getASTContext().getVTableContext()); | ||||
723 | MethodVFTableLocation ML = | ||||
724 | VTContext->getMethodVFTableLocation(GlobalDecl(MD)); | ||||
725 | mangleVirtualMemPtrThunk(MD, ML); | ||||
726 | NVOffset = ML.VFPtrOffset.getQuantity(); | ||||
727 | VBTableOffset = ML.VBTableIndex * 4; | ||||
728 | if (ML.VBase) { | ||||
729 | const ASTRecordLayout &Layout = getASTContext().getASTRecordLayout(RD); | ||||
730 | VBPtrOffset = Layout.getVBPtrOffset().getQuantity(); | ||||
731 | } | ||||
732 | } else { | ||||
733 | mangleName(MD); | ||||
734 | mangleFunctionEncoding(MD, /*ShouldMangle=*/true); | ||||
735 | } | ||||
736 | |||||
737 | if (VBTableOffset == 0 && IM == MSInheritanceModel::Virtual) | ||||
738 | NVOffset -= getASTContext().getOffsetOfBaseWithVBPtr(RD).getQuantity(); | ||||
739 | } else { | ||||
740 | // Null single inheritance member functions are encoded as a simple nullptr. | ||||
741 | if (IM == MSInheritanceModel::Single) { | ||||
742 | Out << Prefix << "0A@"; | ||||
743 | return; | ||||
744 | } | ||||
745 | if (IM == MSInheritanceModel::Unspecified) | ||||
746 | VBTableOffset = -1; | ||||
747 | Out << Prefix << Code; | ||||
748 | } | ||||
749 | |||||
750 | if (inheritanceModelHasNVOffsetField(/*IsMemberFunction=*/true, IM)) | ||||
751 | mangleNumber(static_cast<uint32_t>(NVOffset)); | ||||
752 | if (inheritanceModelHasVBPtrOffsetField(IM)) | ||||
753 | mangleNumber(VBPtrOffset); | ||||
754 | if (inheritanceModelHasVBTableOffsetField(IM)) | ||||
755 | mangleNumber(VBTableOffset); | ||||
756 | } | ||||
757 | |||||
758 | void MicrosoftCXXNameMangler::mangleVirtualMemPtrThunk( | ||||
759 | const CXXMethodDecl *MD, const MethodVFTableLocation &ML) { | ||||
760 | // Get the vftable offset. | ||||
761 | CharUnits PointerWidth = getASTContext().toCharUnitsFromBits( | ||||
762 | getASTContext().getTargetInfo().getPointerWidth(0)); | ||||
763 | uint64_t OffsetInVFTable = ML.Index * PointerWidth.getQuantity(); | ||||
764 | |||||
765 | Out << "?_9"; | ||||
766 | mangleName(MD->getParent()); | ||||
767 | Out << "$B"; | ||||
768 | mangleNumber(OffsetInVFTable); | ||||
769 | Out << 'A'; | ||||
770 | mangleCallingConvention(MD->getType()->castAs<FunctionProtoType>()); | ||||
771 | } | ||||
772 | |||||
773 | void MicrosoftCXXNameMangler::mangleName(const NamedDecl *ND) { | ||||
774 | // <name> ::= <unscoped-name> {[<named-scope>]+ | [<nested-name>]}? @ | ||||
775 | |||||
776 | // Always start with the unqualified name. | ||||
777 | mangleUnqualifiedName(ND); | ||||
778 | |||||
779 | mangleNestedName(ND); | ||||
780 | |||||
781 | // Terminate the whole name with an '@'. | ||||
782 | Out << '@'; | ||||
783 | } | ||||
784 | |||||
785 | void MicrosoftCXXNameMangler::mangleNumber(int64_t Number) { | ||||
786 | mangleNumber(llvm::APSInt(llvm::APInt(64, Number), /*IsUnsigned*/false)); | ||||
787 | } | ||||
788 | |||||
789 | void MicrosoftCXXNameMangler::mangleNumber(llvm::APSInt Number) { | ||||
790 | // MSVC never mangles any integer wider than 64 bits. In general it appears | ||||
791 | // to convert every integer to signed 64 bit before mangling (including | ||||
792 | // unsigned 64 bit values). Do the same, but preserve bits beyond the bottom | ||||
793 | // 64. | ||||
794 | llvm::APInt Value = | ||||
795 | Number.isSigned() ? Number.sextOrSelf(64) : Number.zextOrSelf(64); | ||||
796 | |||||
797 | // <non-negative integer> ::= A@ # when Number == 0 | ||||
798 | // ::= <decimal digit> # when 1 <= Number <= 10 | ||||
799 | // ::= <hex digit>+ @ # when Number >= 10 | ||||
800 | // | ||||
801 | // <number> ::= [?] <non-negative integer> | ||||
802 | |||||
803 | if (Value.isNegative()) { | ||||
804 | Value = -Value; | ||||
805 | Out << '?'; | ||||
806 | } | ||||
807 | mangleBits(Value); | ||||
808 | } | ||||
809 | |||||
810 | void MicrosoftCXXNameMangler::mangleFloat(llvm::APFloat Number) { | ||||
811 | using llvm::APFloat; | ||||
812 | |||||
813 | switch (APFloat::SemanticsToEnum(Number.getSemantics())) { | ||||
814 | case APFloat::S_IEEEsingle: Out << 'A'; break; | ||||
815 | case APFloat::S_IEEEdouble: Out << 'B'; break; | ||||
816 | |||||
817 | // The following are all Clang extensions. We try to pick manglings that are | ||||
818 | // unlikely to conflict with MSVC's scheme. | ||||
819 | case APFloat::S_IEEEhalf: Out << 'V'; break; | ||||
820 | case APFloat::S_BFloat: Out << 'W'; break; | ||||
821 | case APFloat::S_x87DoubleExtended: Out << 'X'; break; | ||||
822 | case APFloat::S_IEEEquad: Out << 'Y'; break; | ||||
823 | case APFloat::S_PPCDoubleDouble: Out << 'Z'; break; | ||||
824 | } | ||||
825 | |||||
826 | mangleBits(Number.bitcastToAPInt()); | ||||
827 | } | ||||
828 | |||||
829 | void MicrosoftCXXNameMangler::mangleBits(llvm::APInt Value) { | ||||
830 | if (Value == 0) | ||||
831 | Out << "A@"; | ||||
832 | else if (Value.uge(1) && Value.ule(10)) | ||||
833 | Out << (Value - 1); | ||||
834 | else { | ||||
835 | // Numbers that are not encoded as decimal digits are represented as nibbles | ||||
836 | // in the range of ASCII characters 'A' to 'P'. | ||||
837 | // The number 0x123450 would be encoded as 'BCDEFA' | ||||
838 | llvm::SmallString<32> EncodedNumberBuffer; | ||||
839 | for (; Value != 0; Value.lshrInPlace(4)) | ||||
840 | EncodedNumberBuffer.push_back('A' + (Value & 0xf).getZExtValue()); | ||||
841 | std::reverse(EncodedNumberBuffer.begin(), EncodedNumberBuffer.end()); | ||||
842 | Out.write(EncodedNumberBuffer.data(), EncodedNumberBuffer.size()); | ||||
843 | Out << '@'; | ||||
844 | } | ||||
845 | } | ||||
846 | |||||
847 | static const TemplateDecl * | ||||
848 | isTemplate(const NamedDecl *ND, const TemplateArgumentList *&TemplateArgs) { | ||||
849 | // Check if we have a function template. | ||||
850 | if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(ND)) { | ||||
851 | if (const TemplateDecl *TD = FD->getPrimaryTemplate()) { | ||||
852 | TemplateArgs = FD->getTemplateSpecializationArgs(); | ||||
853 | return TD; | ||||
854 | } | ||||
855 | } | ||||
856 | |||||
857 | // Check if we have a class template. | ||||
858 | if (const ClassTemplateSpecializationDecl *Spec = | ||||
859 | dyn_cast<ClassTemplateSpecializationDecl>(ND)) { | ||||
860 | TemplateArgs = &Spec->getTemplateArgs(); | ||||
861 | return Spec->getSpecializedTemplate(); | ||||
862 | } | ||||
863 | |||||
864 | // Check if we have a variable template. | ||||
865 | if (const VarTemplateSpecializationDecl *Spec = | ||||
866 | dyn_cast<VarTemplateSpecializationDecl>(ND)) { | ||||
867 | TemplateArgs = &Spec->getTemplateArgs(); | ||||
868 | return Spec->getSpecializedTemplate(); | ||||
869 | } | ||||
870 | |||||
871 | return nullptr; | ||||
872 | } | ||||
873 | |||||
874 | void MicrosoftCXXNameMangler::mangleUnqualifiedName(const NamedDecl *ND, | ||||
875 | DeclarationName Name) { | ||||
876 | // <unqualified-name> ::= <operator-name> | ||||
877 | // ::= <ctor-dtor-name> | ||||
878 | // ::= <source-name> | ||||
879 | // ::= <template-name> | ||||
880 | |||||
881 | // Check if we have a template. | ||||
882 | const TemplateArgumentList *TemplateArgs = nullptr; | ||||
883 | if (const TemplateDecl *TD = isTemplate(ND, TemplateArgs)) { | ||||
884 | // Function templates aren't considered for name back referencing. This | ||||
885 | // makes sense since function templates aren't likely to occur multiple | ||||
886 | // times in a symbol. | ||||
887 | if (isa<FunctionTemplateDecl>(TD)) { | ||||
888 | mangleTemplateInstantiationName(TD, *TemplateArgs); | ||||
889 | Out << '@'; | ||||
890 | return; | ||||
891 | } | ||||
892 | |||||
893 | // Here comes the tricky thing: if we need to mangle something like | ||||
894 | // void foo(A::X<Y>, B::X<Y>), | ||||
895 | // the X<Y> part is aliased. However, if you need to mangle | ||||
896 | // void foo(A::X<A::Y>, A::X<B::Y>), | ||||
897 | // the A::X<> part is not aliased. | ||||
898 | // That is, from the mangler's perspective we have a structure like this: | ||||
899 | // namespace[s] -> type[ -> template-parameters] | ||||
900 | // but from the Clang perspective we have | ||||
901 | // type [ -> template-parameters] | ||||
902 | // \-> namespace[s] | ||||
903 | // What we do is we create a new mangler, mangle the same type (without | ||||
904 | // a namespace suffix) to a string using the extra mangler and then use | ||||
905 | // the mangled type name as a key to check the mangling of different types | ||||
906 | // for aliasing. | ||||
907 | |||||
908 | // It's important to key cache reads off ND, not TD -- the same TD can | ||||
909 | // be used with different TemplateArgs, but ND uniquely identifies | ||||
910 | // TD / TemplateArg pairs. | ||||
911 | ArgBackRefMap::iterator Found = TemplateArgBackReferences.find(ND); | ||||
912 | if (Found == TemplateArgBackReferences.end()) { | ||||
913 | |||||
914 | TemplateArgStringMap::iterator Found = TemplateArgStrings.find(ND); | ||||
915 | if (Found == TemplateArgStrings.end()) { | ||||
916 | // Mangle full template name into temporary buffer. | ||||
917 | llvm::SmallString<64> TemplateMangling; | ||||
918 | llvm::raw_svector_ostream Stream(TemplateMangling); | ||||
919 | MicrosoftCXXNameMangler Extra(Context, Stream); | ||||
920 | Extra.mangleTemplateInstantiationName(TD, *TemplateArgs); | ||||
921 | |||||
922 | // Use the string backref vector to possibly get a back reference. | ||||
923 | mangleSourceName(TemplateMangling); | ||||
924 | |||||
925 | // Memoize back reference for this type if one exist, else memoize | ||||
926 | // the mangling itself. | ||||
927 | BackRefVec::iterator StringFound = | ||||
928 | llvm::find(NameBackReferences, TemplateMangling); | ||||
929 | if (StringFound != NameBackReferences.end()) { | ||||
930 | TemplateArgBackReferences[ND] = | ||||
931 | StringFound - NameBackReferences.begin(); | ||||
932 | } else { | ||||
933 | TemplateArgStrings[ND] = | ||||
934 | TemplateArgStringStorage.save(TemplateMangling.str()); | ||||
935 | } | ||||
936 | } else { | ||||
937 | Out << Found->second << '@'; // Outputs a StringRef. | ||||
938 | } | ||||
939 | } else { | ||||
940 | Out << Found->second; // Outputs a back reference (an int). | ||||
941 | } | ||||
942 | return; | ||||
943 | } | ||||
944 | |||||
945 | switch (Name.getNameKind()) { | ||||
946 | case DeclarationName::Identifier: { | ||||
947 | if (const IdentifierInfo *II = Name.getAsIdentifierInfo()) { | ||||
948 | mangleSourceName(II->getName()); | ||||
949 | break; | ||||
950 | } | ||||
951 | |||||
952 | // Otherwise, an anonymous entity. We must have a declaration. | ||||
953 | assert(ND && "mangling empty name without declaration")((ND && "mangling empty name without declaration") ? static_cast <void> (0) : __assert_fail ("ND && \"mangling empty name without declaration\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 953, __PRETTY_FUNCTION__)); | ||||
954 | |||||
955 | if (const NamespaceDecl *NS = dyn_cast<NamespaceDecl>(ND)) { | ||||
956 | if (NS->isAnonymousNamespace()) { | ||||
957 | Out << "?A0x" << Context.getAnonymousNamespaceHash() << '@'; | ||||
958 | break; | ||||
959 | } | ||||
960 | } | ||||
961 | |||||
962 | if (const DecompositionDecl *DD = dyn_cast<DecompositionDecl>(ND)) { | ||||
963 | // Decomposition declarations are considered anonymous, and get | ||||
964 | // numbered with a $S prefix. | ||||
965 | llvm::SmallString<64> Name("$S"); | ||||
966 | // Get a unique id for the anonymous struct. | ||||
967 | Name += llvm::utostr(Context.getAnonymousStructId(DD) + 1); | ||||
968 | mangleSourceName(Name); | ||||
969 | break; | ||||
970 | } | ||||
971 | |||||
972 | if (const VarDecl *VD = dyn_cast<VarDecl>(ND)) { | ||||
973 | // We must have an anonymous union or struct declaration. | ||||
974 | const CXXRecordDecl *RD = VD->getType()->getAsCXXRecordDecl(); | ||||
975 | assert(RD && "expected variable decl to have a record type")((RD && "expected variable decl to have a record type" ) ? static_cast<void> (0) : __assert_fail ("RD && \"expected variable decl to have a record type\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 975, __PRETTY_FUNCTION__)); | ||||
976 | // Anonymous types with no tag or typedef get the name of their | ||||
977 | // declarator mangled in. If they have no declarator, number them with | ||||
978 | // a $S prefix. | ||||
979 | llvm::SmallString<64> Name("$S"); | ||||
980 | // Get a unique id for the anonymous struct. | ||||
981 | Name += llvm::utostr(Context.getAnonymousStructId(RD) + 1); | ||||
982 | mangleSourceName(Name.str()); | ||||
983 | break; | ||||
984 | } | ||||
985 | |||||
986 | if (const MSGuidDecl *GD = dyn_cast<MSGuidDecl>(ND)) { | ||||
987 | // Mangle a GUID object as if it were a variable with the corresponding | ||||
988 | // mangled name. | ||||
989 | SmallString<sizeof("_GUID_12345678_1234_1234_1234_1234567890ab")> GUID; | ||||
990 | llvm::raw_svector_ostream GUIDOS(GUID); | ||||
991 | Context.mangleMSGuidDecl(GD, GUIDOS); | ||||
992 | mangleSourceName(GUID); | ||||
993 | break; | ||||
994 | } | ||||
995 | |||||
996 | if (const auto *TPO = dyn_cast<TemplateParamObjectDecl>(ND)) { | ||||
997 | Out << "?__N"; | ||||
998 | mangleTemplateArgValue(TPO->getType().getUnqualifiedType(), | ||||
999 | TPO->getValue()); | ||||
1000 | break; | ||||
1001 | } | ||||
1002 | |||||
1003 | // We must have an anonymous struct. | ||||
1004 | const TagDecl *TD = cast<TagDecl>(ND); | ||||
1005 | if (const TypedefNameDecl *D = TD->getTypedefNameForAnonDecl()) { | ||||
1006 | assert(TD->getDeclContext() == D->getDeclContext() &&((TD->getDeclContext() == D->getDeclContext() && "Typedef should not be in another decl context!") ? static_cast <void> (0) : __assert_fail ("TD->getDeclContext() == D->getDeclContext() && \"Typedef should not be in another decl context!\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 1007, __PRETTY_FUNCTION__)) | ||||
1007 | "Typedef should not be in another decl context!")((TD->getDeclContext() == D->getDeclContext() && "Typedef should not be in another decl context!") ? static_cast <void> (0) : __assert_fail ("TD->getDeclContext() == D->getDeclContext() && \"Typedef should not be in another decl context!\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 1007, __PRETTY_FUNCTION__)); | ||||
1008 | assert(D->getDeclName().getAsIdentifierInfo() &&((D->getDeclName().getAsIdentifierInfo() && "Typedef was not named!" ) ? static_cast<void> (0) : __assert_fail ("D->getDeclName().getAsIdentifierInfo() && \"Typedef was not named!\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 1009, __PRETTY_FUNCTION__)) | ||||
1009 | "Typedef was not named!")((D->getDeclName().getAsIdentifierInfo() && "Typedef was not named!" ) ? static_cast<void> (0) : __assert_fail ("D->getDeclName().getAsIdentifierInfo() && \"Typedef was not named!\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 1009, __PRETTY_FUNCTION__)); | ||||
1010 | mangleSourceName(D->getDeclName().getAsIdentifierInfo()->getName()); | ||||
1011 | break; | ||||
1012 | } | ||||
1013 | |||||
1014 | if (const CXXRecordDecl *Record = dyn_cast<CXXRecordDecl>(TD)) { | ||||
1015 | if (Record->isLambda()) { | ||||
1016 | llvm::SmallString<10> Name("<lambda_"); | ||||
1017 | |||||
1018 | Decl *LambdaContextDecl = Record->getLambdaContextDecl(); | ||||
1019 | unsigned LambdaManglingNumber = Record->getLambdaManglingNumber(); | ||||
1020 | unsigned LambdaId; | ||||
1021 | const ParmVarDecl *Parm = | ||||
1022 | dyn_cast_or_null<ParmVarDecl>(LambdaContextDecl); | ||||
1023 | const FunctionDecl *Func = | ||||
1024 | Parm ? dyn_cast<FunctionDecl>(Parm->getDeclContext()) : nullptr; | ||||
1025 | |||||
1026 | if (Func) { | ||||
1027 | unsigned DefaultArgNo = | ||||
1028 | Func->getNumParams() - Parm->getFunctionScopeIndex(); | ||||
1029 | Name += llvm::utostr(DefaultArgNo); | ||||
1030 | Name += "_"; | ||||
1031 | } | ||||
1032 | |||||
1033 | if (LambdaManglingNumber) | ||||
1034 | LambdaId = LambdaManglingNumber; | ||||
1035 | else | ||||
1036 | LambdaId = Context.getLambdaId(Record); | ||||
1037 | |||||
1038 | Name += llvm::utostr(LambdaId); | ||||
1039 | Name += ">"; | ||||
1040 | |||||
1041 | mangleSourceName(Name); | ||||
1042 | |||||
1043 | // If the context is a variable or a class member and not a parameter, | ||||
1044 | // it is encoded in a qualified name. | ||||
1045 | if (LambdaManglingNumber && LambdaContextDecl) { | ||||
1046 | if ((isa<VarDecl>(LambdaContextDecl) || | ||||
1047 | isa<FieldDecl>(LambdaContextDecl)) && | ||||
1048 | !isa<ParmVarDecl>(LambdaContextDecl)) { | ||||
1049 | mangleUnqualifiedName(cast<NamedDecl>(LambdaContextDecl)); | ||||
1050 | } | ||||
1051 | } | ||||
1052 | break; | ||||
1053 | } | ||||
1054 | } | ||||
1055 | |||||
1056 | llvm::SmallString<64> Name; | ||||
1057 | if (DeclaratorDecl *DD = | ||||
1058 | Context.getASTContext().getDeclaratorForUnnamedTagDecl(TD)) { | ||||
1059 | // Anonymous types without a name for linkage purposes have their | ||||
1060 | // declarator mangled in if they have one. | ||||
1061 | Name += "<unnamed-type-"; | ||||
1062 | Name += DD->getName(); | ||||
1063 | } else if (TypedefNameDecl *TND = | ||||
1064 | Context.getASTContext().getTypedefNameForUnnamedTagDecl( | ||||
1065 | TD)) { | ||||
1066 | // Anonymous types without a name for linkage purposes have their | ||||
1067 | // associate typedef mangled in if they have one. | ||||
1068 | Name += "<unnamed-type-"; | ||||
1069 | Name += TND->getName(); | ||||
1070 | } else if (isa<EnumDecl>(TD) && | ||||
1071 | cast<EnumDecl>(TD)->enumerator_begin() != | ||||
1072 | cast<EnumDecl>(TD)->enumerator_end()) { | ||||
1073 | // Anonymous non-empty enums mangle in the first enumerator. | ||||
1074 | auto *ED = cast<EnumDecl>(TD); | ||||
1075 | Name += "<unnamed-enum-"; | ||||
1076 | Name += ED->enumerator_begin()->getName(); | ||||
1077 | } else { | ||||
1078 | // Otherwise, number the types using a $S prefix. | ||||
1079 | Name += "<unnamed-type-$S"; | ||||
1080 | Name += llvm::utostr(Context.getAnonymousStructId(TD) + 1); | ||||
1081 | } | ||||
1082 | Name += ">"; | ||||
1083 | mangleSourceName(Name.str()); | ||||
1084 | break; | ||||
1085 | } | ||||
1086 | |||||
1087 | case DeclarationName::ObjCZeroArgSelector: | ||||
1088 | case DeclarationName::ObjCOneArgSelector: | ||||
1089 | case DeclarationName::ObjCMultiArgSelector: { | ||||
1090 | // This is reachable only when constructing an outlined SEH finally | ||||
1091 | // block. Nothing depends on this mangling and it's used only with | ||||
1092 | // functinos with internal linkage. | ||||
1093 | llvm::SmallString<64> Name; | ||||
1094 | mangleSourceName(Name.str()); | ||||
1095 | break; | ||||
1096 | } | ||||
1097 | |||||
1098 | case DeclarationName::CXXConstructorName: | ||||
1099 | if (isStructorDecl(ND)) { | ||||
1100 | if (StructorType == Ctor_CopyingClosure) { | ||||
1101 | Out << "?_O"; | ||||
1102 | return; | ||||
1103 | } | ||||
1104 | if (StructorType == Ctor_DefaultClosure) { | ||||
1105 | Out << "?_F"; | ||||
1106 | return; | ||||
1107 | } | ||||
1108 | } | ||||
1109 | Out << "?0"; | ||||
1110 | return; | ||||
1111 | |||||
1112 | case DeclarationName::CXXDestructorName: | ||||
1113 | if (isStructorDecl(ND)) | ||||
1114 | // If the named decl is the C++ destructor we're mangling, | ||||
1115 | // use the type we were given. | ||||
1116 | mangleCXXDtorType(static_cast<CXXDtorType>(StructorType)); | ||||
1117 | else | ||||
1118 | // Otherwise, use the base destructor name. This is relevant if a | ||||
1119 | // class with a destructor is declared within a destructor. | ||||
1120 | mangleCXXDtorType(Dtor_Base); | ||||
1121 | break; | ||||
1122 | |||||
1123 | case DeclarationName::CXXConversionFunctionName: | ||||
1124 | // <operator-name> ::= ?B # (cast) | ||||
1125 | // The target type is encoded as the return type. | ||||
1126 | Out << "?B"; | ||||
1127 | break; | ||||
1128 | |||||
1129 | case DeclarationName::CXXOperatorName: | ||||
1130 | mangleOperatorName(Name.getCXXOverloadedOperator(), ND->getLocation()); | ||||
1131 | break; | ||||
1132 | |||||
1133 | case DeclarationName::CXXLiteralOperatorName: { | ||||
1134 | Out << "?__K"; | ||||
1135 | mangleSourceName(Name.getCXXLiteralIdentifier()->getName()); | ||||
1136 | break; | ||||
1137 | } | ||||
1138 | |||||
1139 | case DeclarationName::CXXDeductionGuideName: | ||||
1140 | llvm_unreachable("Can't mangle a deduction guide name!")::llvm::llvm_unreachable_internal("Can't mangle a deduction guide name!" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 1140); | ||||
1141 | |||||
1142 | case DeclarationName::CXXUsingDirective: | ||||
1143 | llvm_unreachable("Can't mangle a using directive name!")::llvm::llvm_unreachable_internal("Can't mangle a using directive name!" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 1143); | ||||
1144 | } | ||||
1145 | } | ||||
1146 | |||||
1147 | // <postfix> ::= <unqualified-name> [<postfix>] | ||||
1148 | // ::= <substitution> [<postfix>] | ||||
1149 | void MicrosoftCXXNameMangler::mangleNestedName(const NamedDecl *ND) { | ||||
1150 | const DeclContext *DC = getEffectiveDeclContext(ND); | ||||
1151 | while (!DC->isTranslationUnit()) { | ||||
1152 | if (isa<TagDecl>(ND) || isa<VarDecl>(ND)) { | ||||
1153 | unsigned Disc; | ||||
1154 | if (Context.getNextDiscriminator(ND, Disc)) { | ||||
1155 | Out << '?'; | ||||
1156 | mangleNumber(Disc); | ||||
1157 | Out << '?'; | ||||
1158 | } | ||||
1159 | } | ||||
1160 | |||||
1161 | if (const BlockDecl *BD = dyn_cast<BlockDecl>(DC)) { | ||||
1162 | auto Discriminate = | ||||
1163 | [](StringRef Name, const unsigned Discriminator, | ||||
1164 | const unsigned ParameterDiscriminator) -> std::string { | ||||
1165 | std::string Buffer; | ||||
1166 | llvm::raw_string_ostream Stream(Buffer); | ||||
1167 | Stream << Name; | ||||
1168 | if (Discriminator) | ||||
1169 | Stream << '_' << Discriminator; | ||||
1170 | if (ParameterDiscriminator) | ||||
1171 | Stream << '_' << ParameterDiscriminator; | ||||
1172 | return Stream.str(); | ||||
1173 | }; | ||||
1174 | |||||
1175 | unsigned Discriminator = BD->getBlockManglingNumber(); | ||||
1176 | if (!Discriminator) | ||||
1177 | Discriminator = Context.getBlockId(BD, /*Local=*/false); | ||||
1178 | |||||
1179 | // Mangle the parameter position as a discriminator to deal with unnamed | ||||
1180 | // parameters. Rather than mangling the unqualified parameter name, | ||||
1181 | // always use the position to give a uniform mangling. | ||||
1182 | unsigned ParameterDiscriminator = 0; | ||||
1183 | if (const auto *MC = BD->getBlockManglingContextDecl()) | ||||
1184 | if (const auto *P = dyn_cast<ParmVarDecl>(MC)) | ||||
1185 | if (const auto *F = dyn_cast<FunctionDecl>(P->getDeclContext())) | ||||
1186 | ParameterDiscriminator = | ||||
1187 | F->getNumParams() - P->getFunctionScopeIndex(); | ||||
1188 | |||||
1189 | DC = getEffectiveDeclContext(BD); | ||||
1190 | |||||
1191 | Out << '?'; | ||||
1192 | mangleSourceName(Discriminate("_block_invoke", Discriminator, | ||||
1193 | ParameterDiscriminator)); | ||||
1194 | // If we have a block mangling context, encode that now. This allows us | ||||
1195 | // to discriminate between named static data initializers in the same | ||||
1196 | // scope. This is handled differently from parameters, which use | ||||
1197 | // positions to discriminate between multiple instances. | ||||
1198 | if (const auto *MC = BD->getBlockManglingContextDecl()) | ||||
1199 | if (!isa<ParmVarDecl>(MC)) | ||||
1200 | if (const auto *ND = dyn_cast<NamedDecl>(MC)) | ||||
1201 | mangleUnqualifiedName(ND); | ||||
1202 | // MS ABI and Itanium manglings are in inverted scopes. In the case of a | ||||
1203 | // RecordDecl, mangle the entire scope hierarchy at this point rather than | ||||
1204 | // just the unqualified name to get the ordering correct. | ||||
1205 | if (const auto *RD = dyn_cast<RecordDecl>(DC)) | ||||
1206 | mangleName(RD); | ||||
1207 | else | ||||
1208 | Out << '@'; | ||||
1209 | // void __cdecl | ||||
1210 | Out << "YAX"; | ||||
1211 | // struct __block_literal * | ||||
1212 | Out << 'P'; | ||||
1213 | // __ptr64 | ||||
1214 | if (PointersAre64Bit) | ||||
1215 | Out << 'E'; | ||||
1216 | Out << 'A'; | ||||
1217 | mangleArtificialTagType(TTK_Struct, | ||||
1218 | Discriminate("__block_literal", Discriminator, | ||||
1219 | ParameterDiscriminator)); | ||||
1220 | Out << "@Z"; | ||||
1221 | |||||
1222 | // If the effective context was a Record, we have fully mangled the | ||||
1223 | // qualified name and do not need to continue. | ||||
1224 | if (isa<RecordDecl>(DC)) | ||||
1225 | break; | ||||
1226 | continue; | ||||
1227 | } else if (const ObjCMethodDecl *Method = dyn_cast<ObjCMethodDecl>(DC)) { | ||||
1228 | mangleObjCMethodName(Method); | ||||
1229 | } else if (isa<NamedDecl>(DC)) { | ||||
1230 | ND = cast<NamedDecl>(DC); | ||||
1231 | if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(ND)) { | ||||
1232 | mangle(FD, "?"); | ||||
1233 | break; | ||||
1234 | } else { | ||||
1235 | mangleUnqualifiedName(ND); | ||||
1236 | // Lambdas in default arguments conceptually belong to the function the | ||||
1237 | // parameter corresponds to. | ||||
1238 | if (const auto *LDADC = getLambdaDefaultArgumentDeclContext(ND)) { | ||||
1239 | DC = LDADC; | ||||
1240 | continue; | ||||
1241 | } | ||||
1242 | } | ||||
1243 | } | ||||
1244 | DC = DC->getParent(); | ||||
1245 | } | ||||
1246 | } | ||||
1247 | |||||
1248 | void MicrosoftCXXNameMangler::mangleCXXDtorType(CXXDtorType T) { | ||||
1249 | // Microsoft uses the names on the case labels for these dtor variants. Clang | ||||
1250 | // uses the Itanium terminology internally. Everything in this ABI delegates | ||||
1251 | // towards the base dtor. | ||||
1252 | switch (T) { | ||||
1253 | // <operator-name> ::= ?1 # destructor | ||||
1254 | case Dtor_Base: Out << "?1"; return; | ||||
1255 | // <operator-name> ::= ?_D # vbase destructor | ||||
1256 | case Dtor_Complete: Out << "?_D"; return; | ||||
1257 | // <operator-name> ::= ?_G # scalar deleting destructor | ||||
1258 | case Dtor_Deleting: Out << "?_G"; return; | ||||
1259 | // <operator-name> ::= ?_E # vector deleting destructor | ||||
1260 | // FIXME: Add a vector deleting dtor type. It goes in the vtable, so we need | ||||
1261 | // it. | ||||
1262 | case Dtor_Comdat: | ||||
1263 | llvm_unreachable("not expecting a COMDAT")::llvm::llvm_unreachable_internal("not expecting a COMDAT", "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 1263); | ||||
1264 | } | ||||
1265 | llvm_unreachable("Unsupported dtor type?")::llvm::llvm_unreachable_internal("Unsupported dtor type?", "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 1265); | ||||
1266 | } | ||||
1267 | |||||
1268 | void MicrosoftCXXNameMangler::mangleOperatorName(OverloadedOperatorKind OO, | ||||
1269 | SourceLocation Loc) { | ||||
1270 | switch (OO) { | ||||
1271 | // ?0 # constructor | ||||
1272 | // ?1 # destructor | ||||
1273 | // <operator-name> ::= ?2 # new | ||||
1274 | case OO_New: Out << "?2"; break; | ||||
1275 | // <operator-name> ::= ?3 # delete | ||||
1276 | case OO_Delete: Out << "?3"; break; | ||||
1277 | // <operator-name> ::= ?4 # = | ||||
1278 | case OO_Equal: Out << "?4"; break; | ||||
1279 | // <operator-name> ::= ?5 # >> | ||||
1280 | case OO_GreaterGreater: Out << "?5"; break; | ||||
1281 | // <operator-name> ::= ?6 # << | ||||
1282 | case OO_LessLess: Out << "?6"; break; | ||||
1283 | // <operator-name> ::= ?7 # ! | ||||
1284 | case OO_Exclaim: Out << "?7"; break; | ||||
1285 | // <operator-name> ::= ?8 # == | ||||
1286 | case OO_EqualEqual: Out << "?8"; break; | ||||
1287 | // <operator-name> ::= ?9 # != | ||||
1288 | case OO_ExclaimEqual: Out << "?9"; break; | ||||
1289 | // <operator-name> ::= ?A # [] | ||||
1290 | case OO_Subscript: Out << "?A"; break; | ||||
1291 | // ?B # conversion | ||||
1292 | // <operator-name> ::= ?C # -> | ||||
1293 | case OO_Arrow: Out << "?C"; break; | ||||
1294 | // <operator-name> ::= ?D # * | ||||
1295 | case OO_Star: Out << "?D"; break; | ||||
1296 | // <operator-name> ::= ?E # ++ | ||||
1297 | case OO_PlusPlus: Out << "?E"; break; | ||||
1298 | // <operator-name> ::= ?F # -- | ||||
1299 | case OO_MinusMinus: Out << "?F"; break; | ||||
1300 | // <operator-name> ::= ?G # - | ||||
1301 | case OO_Minus: Out << "?G"; break; | ||||
1302 | // <operator-name> ::= ?H # + | ||||
1303 | case OO_Plus: Out << "?H"; break; | ||||
1304 | // <operator-name> ::= ?I # & | ||||
1305 | case OO_Amp: Out << "?I"; break; | ||||
1306 | // <operator-name> ::= ?J # ->* | ||||
1307 | case OO_ArrowStar: Out << "?J"; break; | ||||
1308 | // <operator-name> ::= ?K # / | ||||
1309 | case OO_Slash: Out << "?K"; break; | ||||
1310 | // <operator-name> ::= ?L # % | ||||
1311 | case OO_Percent: Out << "?L"; break; | ||||
1312 | // <operator-name> ::= ?M # < | ||||
1313 | case OO_Less: Out << "?M"; break; | ||||
1314 | // <operator-name> ::= ?N # <= | ||||
1315 | case OO_LessEqual: Out << "?N"; break; | ||||
1316 | // <operator-name> ::= ?O # > | ||||
1317 | case OO_Greater: Out << "?O"; break; | ||||
1318 | // <operator-name> ::= ?P # >= | ||||
1319 | case OO_GreaterEqual: Out << "?P"; break; | ||||
1320 | // <operator-name> ::= ?Q # , | ||||
1321 | case OO_Comma: Out << "?Q"; break; | ||||
1322 | // <operator-name> ::= ?R # () | ||||
1323 | case OO_Call: Out << "?R"; break; | ||||
1324 | // <operator-name> ::= ?S # ~ | ||||
1325 | case OO_Tilde: Out << "?S"; break; | ||||
1326 | // <operator-name> ::= ?T # ^ | ||||
1327 | case OO_Caret: Out << "?T"; break; | ||||
1328 | // <operator-name> ::= ?U # | | ||||
1329 | case OO_Pipe: Out << "?U"; break; | ||||
1330 | // <operator-name> ::= ?V # && | ||||
1331 | case OO_AmpAmp: Out << "?V"; break; | ||||
1332 | // <operator-name> ::= ?W # || | ||||
1333 | case OO_PipePipe: Out << "?W"; break; | ||||
1334 | // <operator-name> ::= ?X # *= | ||||
1335 | case OO_StarEqual: Out << "?X"; break; | ||||
1336 | // <operator-name> ::= ?Y # += | ||||
1337 | case OO_PlusEqual: Out << "?Y"; break; | ||||
1338 | // <operator-name> ::= ?Z # -= | ||||
1339 | case OO_MinusEqual: Out << "?Z"; break; | ||||
1340 | // <operator-name> ::= ?_0 # /= | ||||
1341 | case OO_SlashEqual: Out << "?_0"; break; | ||||
1342 | // <operator-name> ::= ?_1 # %= | ||||
1343 | case OO_PercentEqual: Out << "?_1"; break; | ||||
1344 | // <operator-name> ::= ?_2 # >>= | ||||
1345 | case OO_GreaterGreaterEqual: Out << "?_2"; break; | ||||
1346 | // <operator-name> ::= ?_3 # <<= | ||||
1347 | case OO_LessLessEqual: Out << "?_3"; break; | ||||
1348 | // <operator-name> ::= ?_4 # &= | ||||
1349 | case OO_AmpEqual: Out << "?_4"; break; | ||||
1350 | // <operator-name> ::= ?_5 # |= | ||||
1351 | case OO_PipeEqual: Out << "?_5"; break; | ||||
1352 | // <operator-name> ::= ?_6 # ^= | ||||
1353 | case OO_CaretEqual: Out << "?_6"; break; | ||||
1354 | // ?_7 # vftable | ||||
1355 | // ?_8 # vbtable | ||||
1356 | // ?_9 # vcall | ||||
1357 | // ?_A # typeof | ||||
1358 | // ?_B # local static guard | ||||
1359 | // ?_C # string | ||||
1360 | // ?_D # vbase destructor | ||||
1361 | // ?_E # vector deleting destructor | ||||
1362 | // ?_F # default constructor closure | ||||
1363 | // ?_G # scalar deleting destructor | ||||
1364 | // ?_H # vector constructor iterator | ||||
1365 | // ?_I # vector destructor iterator | ||||
1366 | // ?_J # vector vbase constructor iterator | ||||
1367 | // ?_K # virtual displacement map | ||||
1368 | // ?_L # eh vector constructor iterator | ||||
1369 | // ?_M # eh vector destructor iterator | ||||
1370 | // ?_N # eh vector vbase constructor iterator | ||||
1371 | // ?_O # copy constructor closure | ||||
1372 | // ?_P<name> # udt returning <name> | ||||
1373 | // ?_Q # <unknown> | ||||
1374 | // ?_R0 # RTTI Type Descriptor | ||||
1375 | // ?_R1 # RTTI Base Class Descriptor at (a,b,c,d) | ||||
1376 | // ?_R2 # RTTI Base Class Array | ||||
1377 | // ?_R3 # RTTI Class Hierarchy Descriptor | ||||
1378 | // ?_R4 # RTTI Complete Object Locator | ||||
1379 | // ?_S # local vftable | ||||
1380 | // ?_T # local vftable constructor closure | ||||
1381 | // <operator-name> ::= ?_U # new[] | ||||
1382 | case OO_Array_New: Out << "?_U"; break; | ||||
1383 | // <operator-name> ::= ?_V # delete[] | ||||
1384 | case OO_Array_Delete: Out << "?_V"; break; | ||||
1385 | // <operator-name> ::= ?__L # co_await | ||||
1386 | case OO_Coawait: Out << "?__L"; break; | ||||
1387 | // <operator-name> ::= ?__M # <=> | ||||
1388 | case OO_Spaceship: Out << "?__M"; break; | ||||
1389 | |||||
1390 | case OO_Conditional: { | ||||
1391 | DiagnosticsEngine &Diags = Context.getDiags(); | ||||
1392 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, | ||||
1393 | "cannot mangle this conditional operator yet"); | ||||
1394 | Diags.Report(Loc, DiagID); | ||||
1395 | break; | ||||
1396 | } | ||||
1397 | |||||
1398 | case OO_None: | ||||
1399 | case NUM_OVERLOADED_OPERATORS: | ||||
1400 | llvm_unreachable("Not an overloaded operator")::llvm::llvm_unreachable_internal("Not an overloaded operator" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 1400); | ||||
1401 | } | ||||
1402 | } | ||||
1403 | |||||
1404 | void MicrosoftCXXNameMangler::mangleSourceName(StringRef Name) { | ||||
1405 | // <source name> ::= <identifier> @ | ||||
1406 | BackRefVec::iterator Found = llvm::find(NameBackReferences, Name); | ||||
1407 | if (Found == NameBackReferences.end()) { | ||||
1408 | if (NameBackReferences.size() < 10) | ||||
1409 | NameBackReferences.push_back(std::string(Name)); | ||||
1410 | Out << Name << '@'; | ||||
1411 | } else { | ||||
1412 | Out << (Found - NameBackReferences.begin()); | ||||
1413 | } | ||||
1414 | } | ||||
1415 | |||||
1416 | void MicrosoftCXXNameMangler::mangleObjCMethodName(const ObjCMethodDecl *MD) { | ||||
1417 | Context.mangleObjCMethodNameAsSourceName(MD, Out); | ||||
1418 | } | ||||
1419 | |||||
1420 | void MicrosoftCXXNameMangler::mangleTemplateInstantiationName( | ||||
1421 | const TemplateDecl *TD, const TemplateArgumentList &TemplateArgs) { | ||||
1422 | // <template-name> ::= <unscoped-template-name> <template-args> | ||||
1423 | // ::= <substitution> | ||||
1424 | // Always start with the unqualified name. | ||||
1425 | |||||
1426 | // Templates have their own context for back references. | ||||
1427 | ArgBackRefMap OuterFunArgsContext; | ||||
1428 | ArgBackRefMap OuterTemplateArgsContext; | ||||
1429 | BackRefVec OuterTemplateContext; | ||||
1430 | PassObjectSizeArgsSet OuterPassObjectSizeArgs; | ||||
1431 | NameBackReferences.swap(OuterTemplateContext); | ||||
1432 | FunArgBackReferences.swap(OuterFunArgsContext); | ||||
1433 | TemplateArgBackReferences.swap(OuterTemplateArgsContext); | ||||
1434 | PassObjectSizeArgs.swap(OuterPassObjectSizeArgs); | ||||
1435 | |||||
1436 | mangleUnscopedTemplateName(TD); | ||||
1437 | mangleTemplateArgs(TD, TemplateArgs); | ||||
1438 | |||||
1439 | // Restore the previous back reference contexts. | ||||
1440 | NameBackReferences.swap(OuterTemplateContext); | ||||
1441 | FunArgBackReferences.swap(OuterFunArgsContext); | ||||
1442 | TemplateArgBackReferences.swap(OuterTemplateArgsContext); | ||||
1443 | PassObjectSizeArgs.swap(OuterPassObjectSizeArgs); | ||||
1444 | } | ||||
1445 | |||||
1446 | void | ||||
1447 | MicrosoftCXXNameMangler::mangleUnscopedTemplateName(const TemplateDecl *TD) { | ||||
1448 | // <unscoped-template-name> ::= ?$ <unqualified-name> | ||||
1449 | Out << "?$"; | ||||
1450 | mangleUnqualifiedName(TD); | ||||
1451 | } | ||||
1452 | |||||
1453 | void MicrosoftCXXNameMangler::mangleIntegerLiteral( | ||||
1454 | const llvm::APSInt &Value, const NonTypeTemplateParmDecl *PD, | ||||
1455 | QualType TemplateArgType) { | ||||
1456 | // <integer-literal> ::= $0 <number> | ||||
1457 | Out << "$"; | ||||
1458 | |||||
1459 | // Since MSVC 2019, add 'M[<type>]' after '$' for auto template parameter when | ||||
1460 | // argument is integer. | ||||
1461 | if (getASTContext().getLangOpts().isCompatibleWithMSVC( | ||||
1462 | LangOptions::MSVC2019) && | ||||
1463 | PD && PD->getType()->getTypeClass() == Type::Auto && | ||||
1464 | !TemplateArgType.isNull()) { | ||||
1465 | Out << "M"; | ||||
1466 | mangleType(TemplateArgType, SourceRange(), QMM_Drop); | ||||
1467 | } | ||||
1468 | |||||
1469 | Out << "0"; | ||||
1470 | |||||
1471 | mangleNumber(Value); | ||||
1472 | } | ||||
1473 | |||||
1474 | void MicrosoftCXXNameMangler::mangleExpression( | ||||
1475 | const Expr *E, const NonTypeTemplateParmDecl *PD) { | ||||
1476 | // See if this is a constant expression. | ||||
1477 | if (Optional<llvm::APSInt> Value = | ||||
1478 | E->getIntegerConstantExpr(Context.getASTContext())) { | ||||
1479 | mangleIntegerLiteral(*Value, PD, E->getType()); | ||||
1480 | return; | ||||
1481 | } | ||||
1482 | |||||
1483 | // As bad as this diagnostic is, it's better than crashing. | ||||
1484 | DiagnosticsEngine &Diags = Context.getDiags(); | ||||
1485 | unsigned DiagID = Diags.getCustomDiagID( | ||||
1486 | DiagnosticsEngine::Error, "cannot yet mangle expression type %0"); | ||||
1487 | Diags.Report(E->getExprLoc(), DiagID) << E->getStmtClassName() | ||||
1488 | << E->getSourceRange(); | ||||
1489 | } | ||||
1490 | |||||
1491 | void MicrosoftCXXNameMangler::mangleTemplateArgs( | ||||
1492 | const TemplateDecl *TD, const TemplateArgumentList &TemplateArgs) { | ||||
1493 | // <template-args> ::= <template-arg>+ | ||||
1494 | const TemplateParameterList *TPL = TD->getTemplateParameters(); | ||||
1495 | assert(TPL->size() == TemplateArgs.size() &&((TPL->size() == TemplateArgs.size() && "size mismatch between args and parms!" ) ? static_cast<void> (0) : __assert_fail ("TPL->size() == TemplateArgs.size() && \"size mismatch between args and parms!\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 1496, __PRETTY_FUNCTION__)) | ||||
1496 | "size mismatch between args and parms!")((TPL->size() == TemplateArgs.size() && "size mismatch between args and parms!" ) ? static_cast<void> (0) : __assert_fail ("TPL->size() == TemplateArgs.size() && \"size mismatch between args and parms!\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 1496, __PRETTY_FUNCTION__)); | ||||
1497 | |||||
1498 | for (size_t i = 0; i < TemplateArgs.size(); ++i) { | ||||
1499 | const TemplateArgument &TA = TemplateArgs[i]; | ||||
1500 | |||||
1501 | // Separate consecutive packs by $$Z. | ||||
1502 | if (i > 0 && TA.getKind() == TemplateArgument::Pack && | ||||
1503 | TemplateArgs[i - 1].getKind() == TemplateArgument::Pack) | ||||
1504 | Out << "$$Z"; | ||||
1505 | |||||
1506 | mangleTemplateArg(TD, TA, TPL->getParam(i)); | ||||
1507 | } | ||||
1508 | } | ||||
1509 | |||||
1510 | void MicrosoftCXXNameMangler::mangleTemplateArg(const TemplateDecl *TD, | ||||
1511 | const TemplateArgument &TA, | ||||
1512 | const NamedDecl *Parm) { | ||||
1513 | // <template-arg> ::= <type> | ||||
1514 | // ::= <integer-literal> | ||||
1515 | // ::= <member-data-pointer> | ||||
1516 | // ::= <member-function-pointer> | ||||
1517 | // ::= $ <constant-value> | ||||
1518 | // ::= <template-args> | ||||
1519 | // | ||||
1520 | // <constant-value> ::= 0 <number> # integer | ||||
1521 | // ::= 1 <mangled-name> # address of D | ||||
1522 | // ::= 2 <type> <typed-constant-value>* @ # struct | ||||
1523 | // ::= 3 <type> <constant-value>* @ # array | ||||
1524 | // ::= 4 ??? # string | ||||
1525 | // ::= 5 <constant-value> @ # address of subobject | ||||
1526 | // ::= 6 <constant-value> <unqualified-name> @ # a.b | ||||
1527 | // ::= 7 <type> [<unqualified-name> <constant-value>] @ | ||||
1528 | // # union, with or without an active member | ||||
1529 | // # pointer to member, symbolically | ||||
1530 | // ::= 8 <class> <unqualified-name> @ | ||||
1531 | // ::= A <type> <non-negative integer> # float | ||||
1532 | // ::= B <type> <non-negative integer> # double | ||||
1533 | // ::= E <mangled-name> # reference to D | ||||
1534 | // # pointer to member, by component value | ||||
1535 | // ::= F <number> <number> | ||||
1536 | // ::= G <number> <number> <number> | ||||
1537 | // ::= H <mangled-name> <number> | ||||
1538 | // ::= I <mangled-name> <number> <number> | ||||
1539 | // ::= J <mangled-name> <number> <number> <number> | ||||
1540 | // | ||||
1541 | // <typed-constant-value> ::= [<type>] <constant-value> | ||||
1542 | // | ||||
1543 | // The <type> appears to be included in a <typed-constant-value> only in the | ||||
1544 | // '0', '1', '8', 'A', 'B', and 'E' cases. | ||||
1545 | |||||
1546 | switch (TA.getKind()) { | ||||
1547 | case TemplateArgument::Null: | ||||
1548 | llvm_unreachable("Can't mangle null template arguments!")::llvm::llvm_unreachable_internal("Can't mangle null template arguments!" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 1548); | ||||
1549 | case TemplateArgument::TemplateExpansion: | ||||
1550 | llvm_unreachable("Can't mangle template expansion arguments!")::llvm::llvm_unreachable_internal("Can't mangle template expansion arguments!" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 1550); | ||||
1551 | case TemplateArgument::Type: { | ||||
1552 | QualType T = TA.getAsType(); | ||||
1553 | mangleType(T, SourceRange(), QMM_Escape); | ||||
1554 | break; | ||||
1555 | } | ||||
1556 | case TemplateArgument::Declaration: { | ||||
1557 | const NamedDecl *ND = TA.getAsDecl(); | ||||
1558 | if (isa<FieldDecl>(ND) || isa<IndirectFieldDecl>(ND)) { | ||||
1559 | mangleMemberDataPointer(cast<CXXRecordDecl>(ND->getDeclContext()) | ||||
1560 | ->getMostRecentNonInjectedDecl(), | ||||
1561 | cast<ValueDecl>(ND)); | ||||
1562 | } else if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(ND)) { | ||||
1563 | const CXXMethodDecl *MD = dyn_cast<CXXMethodDecl>(FD); | ||||
1564 | if (MD && MD->isInstance()) { | ||||
1565 | mangleMemberFunctionPointer( | ||||
1566 | MD->getParent()->getMostRecentNonInjectedDecl(), MD); | ||||
1567 | } else { | ||||
1568 | Out << "$1?"; | ||||
1569 | mangleName(FD); | ||||
1570 | mangleFunctionEncoding(FD, /*ShouldMangle=*/true); | ||||
1571 | } | ||||
1572 | } else if (TA.getParamTypeForDecl()->isRecordType()) { | ||||
1573 | Out << "$"; | ||||
1574 | auto *TPO = cast<TemplateParamObjectDecl>(ND); | ||||
1575 | mangleTemplateArgValue(TPO->getType().getUnqualifiedType(), | ||||
1576 | TPO->getValue()); | ||||
1577 | } else { | ||||
1578 | mangle(ND, TA.getParamTypeForDecl()->isReferenceType() ? "$E?" : "$1?"); | ||||
1579 | } | ||||
1580 | break; | ||||
1581 | } | ||||
1582 | case TemplateArgument::Integral: { | ||||
1583 | QualType T = TA.getIntegralType(); | ||||
1584 | mangleIntegerLiteral(TA.getAsIntegral(), | ||||
1585 | cast<NonTypeTemplateParmDecl>(Parm), T); | ||||
1586 | break; | ||||
1587 | } | ||||
1588 | case TemplateArgument::NullPtr: { | ||||
1589 | QualType T = TA.getNullPtrType(); | ||||
1590 | if (const MemberPointerType *MPT = T->getAs<MemberPointerType>()) { | ||||
1591 | const CXXRecordDecl *RD = MPT->getMostRecentCXXRecordDecl(); | ||||
1592 | if (MPT->isMemberFunctionPointerType() && | ||||
1593 | !isa<FunctionTemplateDecl>(TD)) { | ||||
1594 | mangleMemberFunctionPointer(RD, nullptr); | ||||
1595 | return; | ||||
1596 | } | ||||
1597 | if (MPT->isMemberDataPointer()) { | ||||
1598 | if (!isa<FunctionTemplateDecl>(TD)) { | ||||
1599 | mangleMemberDataPointer(RD, nullptr); | ||||
1600 | return; | ||||
1601 | } | ||||
1602 | // nullptr data pointers are always represented with a single field | ||||
1603 | // which is initialized with either 0 or -1. Why -1? Well, we need to | ||||
1604 | // distinguish the case where the data member is at offset zero in the | ||||
1605 | // record. | ||||
1606 | // However, we are free to use 0 *if* we would use multiple fields for | ||||
1607 | // non-nullptr member pointers. | ||||
1608 | if (!RD->nullFieldOffsetIsZero()) { | ||||
1609 | mangleIntegerLiteral(llvm::APSInt::get(-1), | ||||
1610 | cast<NonTypeTemplateParmDecl>(Parm), T); | ||||
1611 | return; | ||||
1612 | } | ||||
1613 | } | ||||
1614 | } | ||||
1615 | mangleIntegerLiteral(llvm::APSInt::getUnsigned(0), | ||||
1616 | cast<NonTypeTemplateParmDecl>(Parm), T); | ||||
1617 | break; | ||||
1618 | } | ||||
1619 | case TemplateArgument::Expression: | ||||
1620 | mangleExpression(TA.getAsExpr(), cast<NonTypeTemplateParmDecl>(Parm)); | ||||
1621 | break; | ||||
1622 | case TemplateArgument::Pack: { | ||||
1623 | ArrayRef<TemplateArgument> TemplateArgs = TA.getPackAsArray(); | ||||
1624 | if (TemplateArgs.empty()) { | ||||
1625 | if (isa<TemplateTypeParmDecl>(Parm) || | ||||
1626 | isa<TemplateTemplateParmDecl>(Parm)) | ||||
1627 | // MSVC 2015 changed the mangling for empty expanded template packs, | ||||
1628 | // use the old mangling for link compatibility for old versions. | ||||
1629 | Out << (Context.getASTContext().getLangOpts().isCompatibleWithMSVC( | ||||
1630 | LangOptions::MSVC2015) | ||||
1631 | ? "$$V" | ||||
1632 | : "$$$V"); | ||||
1633 | else if (isa<NonTypeTemplateParmDecl>(Parm)) | ||||
1634 | Out << "$S"; | ||||
1635 | else | ||||
1636 | llvm_unreachable("unexpected template parameter decl!")::llvm::llvm_unreachable_internal("unexpected template parameter decl!" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 1636); | ||||
1637 | } else { | ||||
1638 | for (const TemplateArgument &PA : TemplateArgs) | ||||
1639 | mangleTemplateArg(TD, PA, Parm); | ||||
1640 | } | ||||
1641 | break; | ||||
1642 | } | ||||
1643 | case TemplateArgument::Template: { | ||||
1644 | const NamedDecl *ND = | ||||
1645 | TA.getAsTemplate().getAsTemplateDecl()->getTemplatedDecl(); | ||||
1646 | if (const auto *TD = dyn_cast<TagDecl>(ND)) { | ||||
1647 | mangleType(TD); | ||||
1648 | } else if (isa<TypeAliasDecl>(ND)) { | ||||
1649 | Out << "$$Y"; | ||||
1650 | mangleName(ND); | ||||
1651 | } else { | ||||
1652 | llvm_unreachable("unexpected template template NamedDecl!")::llvm::llvm_unreachable_internal("unexpected template template NamedDecl!" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 1652); | ||||
1653 | } | ||||
1654 | break; | ||||
1655 | } | ||||
1656 | } | ||||
1657 | } | ||||
1658 | |||||
1659 | void MicrosoftCXXNameMangler::mangleTemplateArgValue(QualType T, | ||||
1660 | const APValue &V, | ||||
1661 | bool WithScalarType) { | ||||
1662 | switch (V.getKind()) { | ||||
1663 | case APValue::None: | ||||
1664 | case APValue::Indeterminate: | ||||
1665 | // FIXME: MSVC doesn't allow this, so we can't be sure how it should be | ||||
1666 | // mangled. | ||||
1667 | if (WithScalarType) | ||||
1668 | mangleType(T, SourceRange(), QMM_Escape); | ||||
1669 | Out << '@'; | ||||
1670 | return; | ||||
1671 | |||||
1672 | case APValue::Int: | ||||
1673 | if (WithScalarType) | ||||
1674 | mangleType(T, SourceRange(), QMM_Escape); | ||||
1675 | Out << '0'; | ||||
1676 | mangleNumber(V.getInt()); | ||||
1677 | return; | ||||
1678 | |||||
1679 | case APValue::Float: | ||||
1680 | if (WithScalarType) | ||||
1681 | mangleType(T, SourceRange(), QMM_Escape); | ||||
1682 | mangleFloat(V.getFloat()); | ||||
1683 | return; | ||||
1684 | |||||
1685 | case APValue::LValue: { | ||||
1686 | if (WithScalarType) | ||||
1687 | mangleType(T, SourceRange(), QMM_Escape); | ||||
1688 | |||||
1689 | // We don't know how to mangle past-the-end pointers yet. | ||||
1690 | if (V.isLValueOnePastTheEnd()) | ||||
1691 | break; | ||||
1692 | |||||
1693 | APValue::LValueBase Base = V.getLValueBase(); | ||||
1694 | if (!V.hasLValuePath() || V.getLValuePath().empty()) { | ||||
1695 | // Taking the address of a complete object has a special-case mangling. | ||||
1696 | if (Base.isNull()) { | ||||
1697 | // MSVC emits 0A@ for null pointers. Generalize this for arbitrary | ||||
1698 | // integers cast to pointers. | ||||
1699 | // FIXME: This mangles 0 cast to a pointer the same as a null pointer, | ||||
1700 | // even in cases where the two are different values. | ||||
1701 | Out << "0"; | ||||
1702 | mangleNumber(V.getLValueOffset().getQuantity()); | ||||
1703 | } else if (!V.hasLValuePath()) { | ||||
1704 | // FIXME: This can only happen as an extension. Invent a mangling. | ||||
1705 | break; | ||||
1706 | } else if (auto *VD = Base.dyn_cast<const ValueDecl*>()) { | ||||
1707 | Out << (T->isReferenceType() ? "E" : "1"); | ||||
1708 | mangle(VD); | ||||
1709 | } else { | ||||
1710 | break; | ||||
1711 | } | ||||
1712 | } else { | ||||
1713 | unsigned NumAts = 0; | ||||
1714 | if (T->isPointerType()) { | ||||
1715 | Out << "5"; | ||||
1716 | ++NumAts; | ||||
1717 | } | ||||
1718 | |||||
1719 | QualType T = Base.getType(); | ||||
1720 | for (APValue::LValuePathEntry E : V.getLValuePath()) { | ||||
1721 | // We don't know how to mangle array subscripting yet. | ||||
1722 | if (T->isArrayType()) | ||||
1723 | goto mangling_unknown; | ||||
1724 | |||||
1725 | const Decl *D = E.getAsBaseOrMember().getPointer(); | ||||
1726 | auto *FD = dyn_cast<FieldDecl>(D); | ||||
1727 | // We don't know how to mangle derived-to-base conversions yet. | ||||
1728 | if (!FD) | ||||
1729 | goto mangling_unknown; | ||||
1730 | |||||
1731 | Out << "6"; | ||||
1732 | ++NumAts; | ||||
1733 | T = FD->getType(); | ||||
1734 | } | ||||
1735 | |||||
1736 | auto *VD = Base.dyn_cast<const ValueDecl*>(); | ||||
1737 | if (!VD) | ||||
1738 | break; | ||||
1739 | Out << "E"; | ||||
1740 | mangle(VD); | ||||
1741 | |||||
1742 | for (APValue::LValuePathEntry E : V.getLValuePath()) { | ||||
1743 | const Decl *D = E.getAsBaseOrMember().getPointer(); | ||||
1744 | mangleUnqualifiedName(cast<FieldDecl>(D)); | ||||
1745 | } | ||||
1746 | for (unsigned I = 0; I != NumAts; ++I) | ||||
1747 | Out << '@'; | ||||
1748 | } | ||||
1749 | |||||
1750 | return; | ||||
1751 | } | ||||
1752 | |||||
1753 | case APValue::MemberPointer: { | ||||
1754 | if (WithScalarType) | ||||
1755 | mangleType(T, SourceRange(), QMM_Escape); | ||||
1756 | |||||
1757 | // FIXME: The below manglings don't include a conversion, so bail if there | ||||
1758 | // would be one. MSVC mangles the (possibly converted) value of the | ||||
1759 | // pointer-to-member object as if it were a struct, leading to collisions | ||||
1760 | // in some cases. | ||||
1761 | if (!V.getMemberPointerPath().empty()) | ||||
1762 | break; | ||||
1763 | |||||
1764 | const CXXRecordDecl *RD = | ||||
1765 | T->castAs<MemberPointerType>()->getMostRecentCXXRecordDecl(); | ||||
1766 | const ValueDecl *D = V.getMemberPointerDecl(); | ||||
1767 | if (T->isMemberDataPointerType()) | ||||
1768 | mangleMemberDataPointer(RD, D, ""); | ||||
1769 | else | ||||
1770 | mangleMemberFunctionPointer(RD, cast_or_null<CXXMethodDecl>(D), ""); | ||||
1771 | return; | ||||
1772 | } | ||||
1773 | |||||
1774 | case APValue::Struct: { | ||||
1775 | Out << '2'; | ||||
1776 | mangleType(T, SourceRange(), QMM_Escape); | ||||
1777 | const CXXRecordDecl *RD = T->getAsCXXRecordDecl(); | ||||
1778 | assert(RD && "unexpected type for record value")((RD && "unexpected type for record value") ? static_cast <void> (0) : __assert_fail ("RD && \"unexpected type for record value\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 1778, __PRETTY_FUNCTION__)); | ||||
1779 | |||||
1780 | unsigned BaseIndex = 0; | ||||
1781 | for (const CXXBaseSpecifier &B : RD->bases()) | ||||
1782 | mangleTemplateArgValue(B.getType(), V.getStructBase(BaseIndex++)); | ||||
1783 | for (const FieldDecl *FD : RD->fields()) | ||||
1784 | if (!FD->isUnnamedBitfield()) | ||||
1785 | mangleTemplateArgValue(FD->getType(), | ||||
1786 | V.getStructField(FD->getFieldIndex()), | ||||
1787 | /*WithScalarType*/ true); | ||||
1788 | Out << '@'; | ||||
1789 | return; | ||||
1790 | } | ||||
1791 | |||||
1792 | case APValue::Union: | ||||
1793 | Out << '7'; | ||||
1794 | mangleType(T, SourceRange(), QMM_Escape); | ||||
1795 | if (const FieldDecl *FD = V.getUnionField()) { | ||||
1796 | mangleUnqualifiedName(FD); | ||||
1797 | mangleTemplateArgValue(FD->getType(), V.getUnionValue()); | ||||
1798 | } | ||||
1799 | Out << '@'; | ||||
1800 | return; | ||||
1801 | |||||
1802 | case APValue::ComplexInt: | ||||
1803 | // We mangle complex types as structs, so mangle the value as a struct too. | ||||
1804 | Out << '2'; | ||||
1805 | mangleType(T, SourceRange(), QMM_Escape); | ||||
1806 | Out << '0'; | ||||
1807 | mangleNumber(V.getComplexIntReal()); | ||||
1808 | Out << '0'; | ||||
1809 | mangleNumber(V.getComplexIntImag()); | ||||
1810 | Out << '@'; | ||||
1811 | return; | ||||
1812 | |||||
1813 | case APValue::ComplexFloat: | ||||
1814 | Out << '2'; | ||||
1815 | mangleType(T, SourceRange(), QMM_Escape); | ||||
1816 | mangleFloat(V.getComplexFloatReal()); | ||||
1817 | mangleFloat(V.getComplexFloatImag()); | ||||
1818 | Out << '@'; | ||||
1819 | return; | ||||
1820 | |||||
1821 | case APValue::Array: { | ||||
1822 | Out << '3'; | ||||
1823 | QualType ElemT = getASTContext().getAsArrayType(T)->getElementType(); | ||||
1824 | mangleType(ElemT, SourceRange(), QMM_Escape); | ||||
1825 | for (unsigned I = 0, N = V.getArraySize(); I != N; ++I) { | ||||
1826 | const APValue &ElemV = I < V.getArrayInitializedElts() | ||||
1827 | ? V.getArrayInitializedElt(I) | ||||
1828 | : V.getArrayFiller(); | ||||
1829 | mangleTemplateArgValue(ElemT, ElemV); | ||||
1830 | Out << '@'; | ||||
1831 | } | ||||
1832 | Out << '@'; | ||||
1833 | return; | ||||
1834 | } | ||||
1835 | |||||
1836 | case APValue::Vector: { | ||||
1837 | // __m128 is mangled as a struct containing an array. We follow this | ||||
1838 | // approach for all vector types. | ||||
1839 | Out << '2'; | ||||
1840 | mangleType(T, SourceRange(), QMM_Escape); | ||||
1841 | Out << '3'; | ||||
1842 | QualType ElemT = T->castAs<VectorType>()->getElementType(); | ||||
1843 | mangleType(ElemT, SourceRange(), QMM_Escape); | ||||
1844 | for (unsigned I = 0, N = V.getVectorLength(); I != N; ++I) { | ||||
1845 | const APValue &ElemV = V.getVectorElt(I); | ||||
1846 | mangleTemplateArgValue(ElemT, ElemV); | ||||
1847 | Out << '@'; | ||||
1848 | } | ||||
1849 | Out << "@@"; | ||||
1850 | return; | ||||
1851 | } | ||||
1852 | |||||
1853 | case APValue::AddrLabelDiff: | ||||
1854 | case APValue::FixedPoint: | ||||
1855 | break; | ||||
1856 | } | ||||
1857 | |||||
1858 | mangling_unknown: | ||||
1859 | DiagnosticsEngine &Diags = Context.getDiags(); | ||||
1860 | unsigned DiagID = Diags.getCustomDiagID( | ||||
1861 | DiagnosticsEngine::Error, "cannot mangle this template argument yet"); | ||||
1862 | Diags.Report(DiagID); | ||||
1863 | } | ||||
1864 | |||||
1865 | void MicrosoftCXXNameMangler::mangleObjCProtocol(const ObjCProtocolDecl *PD) { | ||||
1866 | llvm::SmallString<64> TemplateMangling; | ||||
1867 | llvm::raw_svector_ostream Stream(TemplateMangling); | ||||
1868 | MicrosoftCXXNameMangler Extra(Context, Stream); | ||||
1869 | |||||
1870 | Stream << "?$"; | ||||
1871 | Extra.mangleSourceName("Protocol"); | ||||
1872 | Extra.mangleArtificialTagType(TTK_Struct, PD->getName()); | ||||
1873 | |||||
1874 | mangleArtificialTagType(TTK_Struct, TemplateMangling, {"__ObjC"}); | ||||
1875 | } | ||||
1876 | |||||
1877 | void MicrosoftCXXNameMangler::mangleObjCLifetime(const QualType Type, | ||||
1878 | Qualifiers Quals, | ||||
1879 | SourceRange Range) { | ||||
1880 | llvm::SmallString<64> TemplateMangling; | ||||
1881 | llvm::raw_svector_ostream Stream(TemplateMangling); | ||||
1882 | MicrosoftCXXNameMangler Extra(Context, Stream); | ||||
1883 | |||||
1884 | Stream << "?$"; | ||||
1885 | switch (Quals.getObjCLifetime()) { | ||||
1886 | case Qualifiers::OCL_None: | ||||
1887 | case Qualifiers::OCL_ExplicitNone: | ||||
1888 | break; | ||||
1889 | case Qualifiers::OCL_Autoreleasing: | ||||
1890 | Extra.mangleSourceName("Autoreleasing"); | ||||
1891 | break; | ||||
1892 | case Qualifiers::OCL_Strong: | ||||
1893 | Extra.mangleSourceName("Strong"); | ||||
1894 | break; | ||||
1895 | case Qualifiers::OCL_Weak: | ||||
1896 | Extra.mangleSourceName("Weak"); | ||||
1897 | break; | ||||
1898 | } | ||||
1899 | Extra.manglePointerCVQualifiers(Quals); | ||||
1900 | Extra.manglePointerExtQualifiers(Quals, Type); | ||||
1901 | Extra.mangleType(Type, Range); | ||||
1902 | |||||
1903 | mangleArtificialTagType(TTK_Struct, TemplateMangling, {"__ObjC"}); | ||||
1904 | } | ||||
1905 | |||||
1906 | void MicrosoftCXXNameMangler::mangleObjCKindOfType(const ObjCObjectType *T, | ||||
1907 | Qualifiers Quals, | ||||
1908 | SourceRange Range) { | ||||
1909 | llvm::SmallString<64> TemplateMangling; | ||||
1910 | llvm::raw_svector_ostream Stream(TemplateMangling); | ||||
1911 | MicrosoftCXXNameMangler Extra(Context, Stream); | ||||
1912 | |||||
1913 | Stream << "?$"; | ||||
1914 | Extra.mangleSourceName("KindOf"); | ||||
1915 | Extra.mangleType(QualType(T, 0) | ||||
1916 | .stripObjCKindOfType(getASTContext()) | ||||
1917 | ->getAs<ObjCObjectType>(), | ||||
1918 | Quals, Range); | ||||
1919 | |||||
1920 | mangleArtificialTagType(TTK_Struct, TemplateMangling, {"__ObjC"}); | ||||
1921 | } | ||||
1922 | |||||
1923 | void MicrosoftCXXNameMangler::mangleQualifiers(Qualifiers Quals, | ||||
1924 | bool IsMember) { | ||||
1925 | // <cvr-qualifiers> ::= [E] [F] [I] <base-cvr-qualifiers> | ||||
1926 | // 'E' means __ptr64 (32-bit only); 'F' means __unaligned (32/64-bit only); | ||||
1927 | // 'I' means __restrict (32/64-bit). | ||||
1928 | // Note that the MSVC __restrict keyword isn't the same as the C99 restrict | ||||
1929 | // keyword! | ||||
1930 | // <base-cvr-qualifiers> ::= A # near | ||||
1931 | // ::= B # near const | ||||
1932 | // ::= C # near volatile | ||||
1933 | // ::= D # near const volatile | ||||
1934 | // ::= E # far (16-bit) | ||||
1935 | // ::= F # far const (16-bit) | ||||
1936 | // ::= G # far volatile (16-bit) | ||||
1937 | // ::= H # far const volatile (16-bit) | ||||
1938 | // ::= I # huge (16-bit) | ||||
1939 | // ::= J # huge const (16-bit) | ||||
1940 | // ::= K # huge volatile (16-bit) | ||||
1941 | // ::= L # huge const volatile (16-bit) | ||||
1942 | // ::= M <basis> # based | ||||
1943 | // ::= N <basis> # based const | ||||
1944 | // ::= O <basis> # based volatile | ||||
1945 | // ::= P <basis> # based const volatile | ||||
1946 | // ::= Q # near member | ||||
1947 | // ::= R # near const member | ||||
1948 | // ::= S # near volatile member | ||||
1949 | // ::= T # near const volatile member | ||||
1950 | // ::= U # far member (16-bit) | ||||
1951 | // ::= V # far const member (16-bit) | ||||
1952 | // ::= W # far volatile member (16-bit) | ||||
1953 | // ::= X # far const volatile member (16-bit) | ||||
1954 | // ::= Y # huge member (16-bit) | ||||
1955 | // ::= Z # huge const member (16-bit) | ||||
1956 | // ::= 0 # huge volatile member (16-bit) | ||||
1957 | // ::= 1 # huge const volatile member (16-bit) | ||||
1958 | // ::= 2 <basis> # based member | ||||
1959 | // ::= 3 <basis> # based const member | ||||
1960 | // ::= 4 <basis> # based volatile member | ||||
1961 | // ::= 5 <basis> # based const volatile member | ||||
1962 | // ::= 6 # near function (pointers only) | ||||
1963 | // ::= 7 # far function (pointers only) | ||||
1964 | // ::= 8 # near method (pointers only) | ||||
1965 | // ::= 9 # far method (pointers only) | ||||
1966 | // ::= _A <basis> # based function (pointers only) | ||||
1967 | // ::= _B <basis> # based function (far?) (pointers only) | ||||
1968 | // ::= _C <basis> # based method (pointers only) | ||||
1969 | // ::= _D <basis> # based method (far?) (pointers only) | ||||
1970 | // ::= _E # block (Clang) | ||||
1971 | // <basis> ::= 0 # __based(void) | ||||
1972 | // ::= 1 # __based(segment)? | ||||
1973 | // ::= 2 <name> # __based(name) | ||||
1974 | // ::= 3 # ? | ||||
1975 | // ::= 4 # ? | ||||
1976 | // ::= 5 # not really based | ||||
1977 | bool HasConst = Quals.hasConst(), | ||||
1978 | HasVolatile = Quals.hasVolatile(); | ||||
1979 | |||||
1980 | if (!IsMember) { | ||||
1981 | if (HasConst && HasVolatile) { | ||||
1982 | Out << 'D'; | ||||
1983 | } else if (HasVolatile) { | ||||
1984 | Out << 'C'; | ||||
1985 | } else if (HasConst) { | ||||
1986 | Out << 'B'; | ||||
1987 | } else { | ||||
1988 | Out << 'A'; | ||||
1989 | } | ||||
1990 | } else { | ||||
1991 | if (HasConst && HasVolatile) { | ||||
1992 | Out << 'T'; | ||||
1993 | } else if (HasVolatile) { | ||||
1994 | Out << 'S'; | ||||
1995 | } else if (HasConst) { | ||||
1996 | Out << 'R'; | ||||
1997 | } else { | ||||
1998 | Out << 'Q'; | ||||
1999 | } | ||||
2000 | } | ||||
2001 | |||||
2002 | // FIXME: For now, just drop all extension qualifiers on the floor. | ||||
2003 | } | ||||
2004 | |||||
2005 | void | ||||
2006 | MicrosoftCXXNameMangler::mangleRefQualifier(RefQualifierKind RefQualifier) { | ||||
2007 | // <ref-qualifier> ::= G # lvalue reference | ||||
2008 | // ::= H # rvalue-reference | ||||
2009 | switch (RefQualifier) { | ||||
2010 | case RQ_None: | ||||
2011 | break; | ||||
2012 | |||||
2013 | case RQ_LValue: | ||||
2014 | Out << 'G'; | ||||
2015 | break; | ||||
2016 | |||||
2017 | case RQ_RValue: | ||||
2018 | Out << 'H'; | ||||
2019 | break; | ||||
2020 | } | ||||
2021 | } | ||||
2022 | |||||
2023 | void MicrosoftCXXNameMangler::manglePointerExtQualifiers(Qualifiers Quals, | ||||
2024 | QualType PointeeType) { | ||||
2025 | // Check if this is a default 64-bit pointer or has __ptr64 qualifier. | ||||
2026 | bool is64Bit = PointeeType.isNull() ? PointersAre64Bit : | ||||
2027 | is64BitPointer(PointeeType.getQualifiers()); | ||||
2028 | if (is64Bit && (PointeeType.isNull() || !PointeeType->isFunctionType())) | ||||
2029 | Out << 'E'; | ||||
2030 | |||||
2031 | if (Quals.hasRestrict()) | ||||
2032 | Out << 'I'; | ||||
2033 | |||||
2034 | if (Quals.hasUnaligned() || | ||||
2035 | (!PointeeType.isNull() && PointeeType.getLocalQualifiers().hasUnaligned())) | ||||
2036 | Out << 'F'; | ||||
2037 | } | ||||
2038 | |||||
2039 | void MicrosoftCXXNameMangler::manglePointerCVQualifiers(Qualifiers Quals) { | ||||
2040 | // <pointer-cv-qualifiers> ::= P # no qualifiers | ||||
2041 | // ::= Q # const | ||||
2042 | // ::= R # volatile | ||||
2043 | // ::= S # const volatile | ||||
2044 | bool HasConst = Quals.hasConst(), | ||||
2045 | HasVolatile = Quals.hasVolatile(); | ||||
2046 | |||||
2047 | if (HasConst && HasVolatile) { | ||||
2048 | Out << 'S'; | ||||
2049 | } else if (HasVolatile) { | ||||
2050 | Out << 'R'; | ||||
2051 | } else if (HasConst) { | ||||
2052 | Out << 'Q'; | ||||
2053 | } else { | ||||
2054 | Out << 'P'; | ||||
2055 | } | ||||
2056 | } | ||||
2057 | |||||
2058 | void MicrosoftCXXNameMangler::mangleFunctionArgumentType(QualType T, | ||||
2059 | SourceRange Range) { | ||||
2060 | // MSVC will backreference two canonically equivalent types that have slightly | ||||
2061 | // different manglings when mangled alone. | ||||
2062 | |||||
2063 | // Decayed types do not match up with non-decayed versions of the same type. | ||||
2064 | // | ||||
2065 | // e.g. | ||||
2066 | // void (*x)(void) will not form a backreference with void x(void) | ||||
2067 | void *TypePtr; | ||||
2068 | if (const auto *DT = T->getAs<DecayedType>()) { | ||||
2069 | QualType OriginalType = DT->getOriginalType(); | ||||
2070 | // All decayed ArrayTypes should be treated identically; as-if they were | ||||
2071 | // a decayed IncompleteArrayType. | ||||
2072 | if (const auto *AT = getASTContext().getAsArrayType(OriginalType)) | ||||
2073 | OriginalType = getASTContext().getIncompleteArrayType( | ||||
2074 | AT->getElementType(), AT->getSizeModifier(), | ||||
2075 | AT->getIndexTypeCVRQualifiers()); | ||||
2076 | |||||
2077 | TypePtr = OriginalType.getCanonicalType().getAsOpaquePtr(); | ||||
2078 | // If the original parameter was textually written as an array, | ||||
2079 | // instead treat the decayed parameter like it's const. | ||||
2080 | // | ||||
2081 | // e.g. | ||||
2082 | // int [] -> int * const | ||||
2083 | if (OriginalType->isArrayType()) | ||||
2084 | T = T.withConst(); | ||||
2085 | } else { | ||||
2086 | TypePtr = T.getCanonicalType().getAsOpaquePtr(); | ||||
2087 | } | ||||
2088 | |||||
2089 | ArgBackRefMap::iterator Found = FunArgBackReferences.find(TypePtr); | ||||
2090 | |||||
2091 | if (Found == FunArgBackReferences.end()) { | ||||
2092 | size_t OutSizeBefore = Out.tell(); | ||||
2093 | |||||
2094 | mangleType(T, Range, QMM_Drop); | ||||
2095 | |||||
2096 | // See if it's worth creating a back reference. | ||||
2097 | // Only types longer than 1 character are considered | ||||
2098 | // and only 10 back references slots are available: | ||||
2099 | bool LongerThanOneChar = (Out.tell() - OutSizeBefore > 1); | ||||
2100 | if (LongerThanOneChar && FunArgBackReferences.size() < 10) { | ||||
2101 | size_t Size = FunArgBackReferences.size(); | ||||
2102 | FunArgBackReferences[TypePtr] = Size; | ||||
2103 | } | ||||
2104 | } else { | ||||
2105 | Out << Found->second; | ||||
2106 | } | ||||
2107 | } | ||||
2108 | |||||
2109 | void MicrosoftCXXNameMangler::manglePassObjectSizeArg( | ||||
2110 | const PassObjectSizeAttr *POSA) { | ||||
2111 | int Type = POSA->getType(); | ||||
2112 | bool Dynamic = POSA->isDynamic(); | ||||
2113 | |||||
2114 | auto Iter = PassObjectSizeArgs.insert({Type, Dynamic}).first; | ||||
2115 | auto *TypePtr = (const void *)&*Iter; | ||||
2116 | ArgBackRefMap::iterator Found = FunArgBackReferences.find(TypePtr); | ||||
2117 | |||||
2118 | if (Found == FunArgBackReferences.end()) { | ||||
2119 | std::string Name = | ||||
2120 | Dynamic ? "__pass_dynamic_object_size" : "__pass_object_size"; | ||||
2121 | mangleArtificialTagType(TTK_Enum, Name + llvm::utostr(Type), {"__clang"}); | ||||
2122 | |||||
2123 | if (FunArgBackReferences.size() < 10) { | ||||
2124 | size_t Size = FunArgBackReferences.size(); | ||||
2125 | FunArgBackReferences[TypePtr] = Size; | ||||
2126 | } | ||||
2127 | } else { | ||||
2128 | Out << Found->second; | ||||
2129 | } | ||||
2130 | } | ||||
2131 | |||||
2132 | void MicrosoftCXXNameMangler::mangleAddressSpaceType(QualType T, | ||||
2133 | Qualifiers Quals, | ||||
2134 | SourceRange Range) { | ||||
2135 | // Address space is mangled as an unqualified templated type in the __clang | ||||
2136 | // namespace. The demangled version of this is: | ||||
2137 | // In the case of a language specific address space: | ||||
2138 | // __clang::struct _AS[language_addr_space]<Type> | ||||
2139 | // where: | ||||
2140 | // <language_addr_space> ::= <OpenCL-addrspace> | <CUDA-addrspace> | ||||
2141 | // <OpenCL-addrspace> ::= "CL" [ "global" | "local" | "constant" | | ||||
2142 | // "private"| "generic" | "device" | "host" ] | ||||
2143 | // <CUDA-addrspace> ::= "CU" [ "device" | "constant" | "shared" ] | ||||
2144 | // Note that the above were chosen to match the Itanium mangling for this. | ||||
2145 | // | ||||
2146 | // In the case of a non-language specific address space: | ||||
2147 | // __clang::struct _AS<TargetAS, Type> | ||||
2148 | assert(Quals.hasAddressSpace() && "Not valid without address space")((Quals.hasAddressSpace() && "Not valid without address space" ) ? static_cast<void> (0) : __assert_fail ("Quals.hasAddressSpace() && \"Not valid without address space\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 2148, __PRETTY_FUNCTION__)); | ||||
2149 | llvm::SmallString<32> ASMangling; | ||||
2150 | llvm::raw_svector_ostream Stream(ASMangling); | ||||
2151 | MicrosoftCXXNameMangler Extra(Context, Stream); | ||||
2152 | Stream << "?$"; | ||||
2153 | |||||
2154 | LangAS AS = Quals.getAddressSpace(); | ||||
2155 | if (Context.getASTContext().addressSpaceMapManglingFor(AS)) { | ||||
2156 | unsigned TargetAS = Context.getASTContext().getTargetAddressSpace(AS); | ||||
2157 | Extra.mangleSourceName("_AS"); | ||||
2158 | Extra.mangleIntegerLiteral(llvm::APSInt::getUnsigned(TargetAS)); | ||||
2159 | } else { | ||||
2160 | switch (AS) { | ||||
2161 | default: | ||||
2162 | llvm_unreachable("Not a language specific address space")::llvm::llvm_unreachable_internal("Not a language specific address space" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 2162); | ||||
2163 | case LangAS::opencl_global: | ||||
2164 | Extra.mangleSourceName("_ASCLglobal"); | ||||
2165 | break; | ||||
2166 | case LangAS::opencl_global_device: | ||||
2167 | Extra.mangleSourceName("_ASCLdevice"); | ||||
2168 | break; | ||||
2169 | case LangAS::opencl_global_host: | ||||
2170 | Extra.mangleSourceName("_ASCLhost"); | ||||
2171 | break; | ||||
2172 | case LangAS::opencl_local: | ||||
2173 | Extra.mangleSourceName("_ASCLlocal"); | ||||
2174 | break; | ||||
2175 | case LangAS::opencl_constant: | ||||
2176 | Extra.mangleSourceName("_ASCLconstant"); | ||||
2177 | break; | ||||
2178 | case LangAS::opencl_private: | ||||
2179 | Extra.mangleSourceName("_ASCLprivate"); | ||||
2180 | break; | ||||
2181 | case LangAS::opencl_generic: | ||||
2182 | Extra.mangleSourceName("_ASCLgeneric"); | ||||
2183 | break; | ||||
2184 | case LangAS::cuda_device: | ||||
2185 | Extra.mangleSourceName("_ASCUdevice"); | ||||
2186 | break; | ||||
2187 | case LangAS::cuda_constant: | ||||
2188 | Extra.mangleSourceName("_ASCUconstant"); | ||||
2189 | break; | ||||
2190 | case LangAS::cuda_shared: | ||||
2191 | Extra.mangleSourceName("_ASCUshared"); | ||||
2192 | break; | ||||
2193 | case LangAS::ptr32_sptr: | ||||
2194 | case LangAS::ptr32_uptr: | ||||
2195 | case LangAS::ptr64: | ||||
2196 | llvm_unreachable("don't mangle ptr address spaces with _AS")::llvm::llvm_unreachable_internal("don't mangle ptr address spaces with _AS" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 2196); | ||||
2197 | } | ||||
2198 | } | ||||
2199 | |||||
2200 | Extra.mangleType(T, Range, QMM_Escape); | ||||
2201 | mangleQualifiers(Qualifiers(), false); | ||||
2202 | mangleArtificialTagType(TTK_Struct, ASMangling, {"__clang"}); | ||||
2203 | } | ||||
2204 | |||||
2205 | void MicrosoftCXXNameMangler::mangleType(QualType T, SourceRange Range, | ||||
2206 | QualifierMangleMode QMM) { | ||||
2207 | // Don't use the canonical types. MSVC includes things like 'const' on | ||||
2208 | // pointer arguments to function pointers that canonicalization strips away. | ||||
2209 | T = T.getDesugaredType(getASTContext()); | ||||
2210 | Qualifiers Quals = T.getLocalQualifiers(); | ||||
2211 | |||||
2212 | if (const ArrayType *AT = getASTContext().getAsArrayType(T)) { | ||||
2213 | // If there were any Quals, getAsArrayType() pushed them onto the array | ||||
2214 | // element type. | ||||
2215 | if (QMM == QMM_Mangle) | ||||
2216 | Out << 'A'; | ||||
2217 | else if (QMM == QMM_Escape || QMM == QMM_Result) | ||||
2218 | Out << "$$B"; | ||||
2219 | mangleArrayType(AT); | ||||
2220 | return; | ||||
2221 | } | ||||
2222 | |||||
2223 | bool IsPointer = T->isAnyPointerType() || T->isMemberPointerType() || | ||||
2224 | T->isReferenceType() || T->isBlockPointerType(); | ||||
2225 | |||||
2226 | switch (QMM) { | ||||
2227 | case QMM_Drop: | ||||
2228 | if (Quals.hasObjCLifetime()) | ||||
2229 | Quals = Quals.withoutObjCLifetime(); | ||||
2230 | break; | ||||
2231 | case QMM_Mangle: | ||||
2232 | if (const FunctionType *FT = dyn_cast<FunctionType>(T)) { | ||||
2233 | Out << '6'; | ||||
2234 | mangleFunctionType(FT); | ||||
2235 | return; | ||||
2236 | } | ||||
2237 | mangleQualifiers(Quals, false); | ||||
2238 | break; | ||||
2239 | case QMM_Escape: | ||||
2240 | if (!IsPointer && Quals) { | ||||
2241 | Out << "$$C"; | ||||
2242 | mangleQualifiers(Quals, false); | ||||
2243 | } | ||||
2244 | break; | ||||
2245 | case QMM_Result: | ||||
2246 | // Presence of __unaligned qualifier shouldn't affect mangling here. | ||||
2247 | Quals.removeUnaligned(); | ||||
2248 | if (Quals.hasObjCLifetime()) | ||||
2249 | Quals = Quals.withoutObjCLifetime(); | ||||
2250 | if ((!IsPointer && Quals) || isa<TagType>(T) || isArtificialTagType(T)) { | ||||
2251 | Out << '?'; | ||||
2252 | mangleQualifiers(Quals, false); | ||||
2253 | } | ||||
2254 | break; | ||||
2255 | } | ||||
2256 | |||||
2257 | const Type *ty = T.getTypePtr(); | ||||
2258 | |||||
2259 | switch (ty->getTypeClass()) { | ||||
2260 | #define ABSTRACT_TYPE(CLASS, PARENT) | ||||
2261 | #define NON_CANONICAL_TYPE(CLASS, PARENT) \ | ||||
2262 | case Type::CLASS: \ | ||||
2263 | llvm_unreachable("can't mangle non-canonical type " #CLASS "Type")::llvm::llvm_unreachable_internal("can't mangle non-canonical type " #CLASS "Type", "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 2263); \ | ||||
2264 | return; | ||||
2265 | #define TYPE(CLASS, PARENT) \ | ||||
2266 | case Type::CLASS: \ | ||||
2267 | mangleType(cast<CLASS##Type>(ty), Quals, Range); \ | ||||
2268 | break; | ||||
2269 | #include "clang/AST/TypeNodes.inc" | ||||
2270 | #undef ABSTRACT_TYPE | ||||
2271 | #undef NON_CANONICAL_TYPE | ||||
2272 | #undef TYPE | ||||
2273 | } | ||||
2274 | } | ||||
2275 | |||||
2276 | void MicrosoftCXXNameMangler::mangleType(const BuiltinType *T, Qualifiers, | ||||
2277 | SourceRange Range) { | ||||
2278 | // <type> ::= <builtin-type> | ||||
2279 | // <builtin-type> ::= X # void | ||||
2280 | // ::= C # signed char | ||||
2281 | // ::= D # char | ||||
2282 | // ::= E # unsigned char | ||||
2283 | // ::= F # short | ||||
2284 | // ::= G # unsigned short (or wchar_t if it's not a builtin) | ||||
2285 | // ::= H # int | ||||
2286 | // ::= I # unsigned int | ||||
2287 | // ::= J # long | ||||
2288 | // ::= K # unsigned long | ||||
2289 | // L # <none> | ||||
2290 | // ::= M # float | ||||
2291 | // ::= N # double | ||||
2292 | // ::= O # long double (__float80 is mangled differently) | ||||
2293 | // ::= _J # long long, __int64 | ||||
2294 | // ::= _K # unsigned long long, __int64 | ||||
2295 | // ::= _L # __int128 | ||||
2296 | // ::= _M # unsigned __int128 | ||||
2297 | // ::= _N # bool | ||||
2298 | // _O # <array in parameter> | ||||
2299 | // ::= _Q # char8_t | ||||
2300 | // ::= _S # char16_t | ||||
2301 | // ::= _T # __float80 (Intel) | ||||
2302 | // ::= _U # char32_t | ||||
2303 | // ::= _W # wchar_t | ||||
2304 | // ::= _Z # __float80 (Digital Mars) | ||||
2305 | switch (T->getKind()) { | ||||
2306 | case BuiltinType::Void: | ||||
2307 | Out << 'X'; | ||||
2308 | break; | ||||
2309 | case BuiltinType::SChar: | ||||
2310 | Out << 'C'; | ||||
2311 | break; | ||||
2312 | case BuiltinType::Char_U: | ||||
2313 | case BuiltinType::Char_S: | ||||
2314 | Out << 'D'; | ||||
2315 | break; | ||||
2316 | case BuiltinType::UChar: | ||||
2317 | Out << 'E'; | ||||
2318 | break; | ||||
2319 | case BuiltinType::Short: | ||||
2320 | Out << 'F'; | ||||
2321 | break; | ||||
2322 | case BuiltinType::UShort: | ||||
2323 | Out << 'G'; | ||||
2324 | break; | ||||
2325 | case BuiltinType::Int: | ||||
2326 | Out << 'H'; | ||||
2327 | break; | ||||
2328 | case BuiltinType::UInt: | ||||
2329 | Out << 'I'; | ||||
2330 | break; | ||||
2331 | case BuiltinType::Long: | ||||
2332 | Out << 'J'; | ||||
2333 | break; | ||||
2334 | case BuiltinType::ULong: | ||||
2335 | Out << 'K'; | ||||
2336 | break; | ||||
2337 | case BuiltinType::Float: | ||||
2338 | Out << 'M'; | ||||
2339 | break; | ||||
2340 | case BuiltinType::Double: | ||||
2341 | Out << 'N'; | ||||
2342 | break; | ||||
2343 | // TODO: Determine size and mangle accordingly | ||||
2344 | case BuiltinType::LongDouble: | ||||
2345 | Out << 'O'; | ||||
2346 | break; | ||||
2347 | case BuiltinType::LongLong: | ||||
2348 | Out << "_J"; | ||||
2349 | break; | ||||
2350 | case BuiltinType::ULongLong: | ||||
2351 | Out << "_K"; | ||||
2352 | break; | ||||
2353 | case BuiltinType::Int128: | ||||
2354 | Out << "_L"; | ||||
2355 | break; | ||||
2356 | case BuiltinType::UInt128: | ||||
2357 | Out << "_M"; | ||||
2358 | break; | ||||
2359 | case BuiltinType::Bool: | ||||
2360 | Out << "_N"; | ||||
2361 | break; | ||||
2362 | case BuiltinType::Char8: | ||||
2363 | Out << "_Q"; | ||||
2364 | break; | ||||
2365 | case BuiltinType::Char16: | ||||
2366 | Out << "_S"; | ||||
2367 | break; | ||||
2368 | case BuiltinType::Char32: | ||||
2369 | Out << "_U"; | ||||
2370 | break; | ||||
2371 | case BuiltinType::WChar_S: | ||||
2372 | case BuiltinType::WChar_U: | ||||
2373 | Out << "_W"; | ||||
2374 | break; | ||||
2375 | |||||
2376 | #define BUILTIN_TYPE(Id, SingletonId) | ||||
2377 | #define PLACEHOLDER_TYPE(Id, SingletonId) \ | ||||
2378 | case BuiltinType::Id: | ||||
2379 | #include "clang/AST/BuiltinTypes.def" | ||||
2380 | case BuiltinType::Dependent: | ||||
2381 | llvm_unreachable("placeholder types shouldn't get to name mangling")::llvm::llvm_unreachable_internal("placeholder types shouldn't get to name mangling" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 2381); | ||||
2382 | |||||
2383 | case BuiltinType::ObjCId: | ||||
2384 | mangleArtificialTagType(TTK_Struct, "objc_object"); | ||||
2385 | break; | ||||
2386 | case BuiltinType::ObjCClass: | ||||
2387 | mangleArtificialTagType(TTK_Struct, "objc_class"); | ||||
2388 | break; | ||||
2389 | case BuiltinType::ObjCSel: | ||||
2390 | mangleArtificialTagType(TTK_Struct, "objc_selector"); | ||||
2391 | break; | ||||
2392 | |||||
2393 | #define IMAGE_TYPE(ImgType, Id, SingletonId, Access, Suffix) \ | ||||
2394 | case BuiltinType::Id: \ | ||||
2395 | Out << "PAUocl_" #ImgType "_" #Suffix "@@"; \ | ||||
2396 | break; | ||||
2397 | #include "clang/Basic/OpenCLImageTypes.def" | ||||
2398 | case BuiltinType::OCLSampler: | ||||
2399 | Out << "PA"; | ||||
2400 | mangleArtificialTagType(TTK_Struct, "ocl_sampler"); | ||||
2401 | break; | ||||
2402 | case BuiltinType::OCLEvent: | ||||
2403 | Out << "PA"; | ||||
2404 | mangleArtificialTagType(TTK_Struct, "ocl_event"); | ||||
2405 | break; | ||||
2406 | case BuiltinType::OCLClkEvent: | ||||
2407 | Out << "PA"; | ||||
2408 | mangleArtificialTagType(TTK_Struct, "ocl_clkevent"); | ||||
2409 | break; | ||||
2410 | case BuiltinType::OCLQueue: | ||||
2411 | Out << "PA"; | ||||
2412 | mangleArtificialTagType(TTK_Struct, "ocl_queue"); | ||||
2413 | break; | ||||
2414 | case BuiltinType::OCLReserveID: | ||||
2415 | Out << "PA"; | ||||
2416 | mangleArtificialTagType(TTK_Struct, "ocl_reserveid"); | ||||
2417 | break; | ||||
2418 | #define EXT_OPAQUE_TYPE(ExtType, Id, Ext) \ | ||||
2419 | case BuiltinType::Id: \ | ||||
2420 | mangleArtificialTagType(TTK_Struct, "ocl_" #ExtType); \ | ||||
2421 | break; | ||||
2422 | #include "clang/Basic/OpenCLExtensionTypes.def" | ||||
2423 | |||||
2424 | case BuiltinType::NullPtr: | ||||
2425 | Out << "$$T"; | ||||
2426 | break; | ||||
2427 | |||||
2428 | case BuiltinType::Float16: | ||||
2429 | mangleArtificialTagType(TTK_Struct, "_Float16", {"__clang"}); | ||||
2430 | break; | ||||
2431 | |||||
2432 | case BuiltinType::Half: | ||||
2433 | mangleArtificialTagType(TTK_Struct, "_Half", {"__clang"}); | ||||
2434 | break; | ||||
2435 | |||||
2436 | #define SVE_TYPE(Name, Id, SingletonId) \ | ||||
2437 | case BuiltinType::Id: | ||||
2438 | #include "clang/Basic/AArch64SVEACLETypes.def" | ||||
2439 | #define PPC_VECTOR_TYPE(Name, Id, Size) \ | ||||
2440 | case BuiltinType::Id: | ||||
2441 | #include "clang/Basic/PPCTypes.def" | ||||
2442 | #define RVV_TYPE(Name, Id, SingletonId) case BuiltinType::Id: | ||||
2443 | #include "clang/Basic/RISCVVTypes.def" | ||||
2444 | case BuiltinType::ShortAccum: | ||||
2445 | case BuiltinType::Accum: | ||||
2446 | case BuiltinType::LongAccum: | ||||
2447 | case BuiltinType::UShortAccum: | ||||
2448 | case BuiltinType::UAccum: | ||||
2449 | case BuiltinType::ULongAccum: | ||||
2450 | case BuiltinType::ShortFract: | ||||
2451 | case BuiltinType::Fract: | ||||
2452 | case BuiltinType::LongFract: | ||||
2453 | case BuiltinType::UShortFract: | ||||
2454 | case BuiltinType::UFract: | ||||
2455 | case BuiltinType::ULongFract: | ||||
2456 | case BuiltinType::SatShortAccum: | ||||
2457 | case BuiltinType::SatAccum: | ||||
2458 | case BuiltinType::SatLongAccum: | ||||
2459 | case BuiltinType::SatUShortAccum: | ||||
2460 | case BuiltinType::SatUAccum: | ||||
2461 | case BuiltinType::SatULongAccum: | ||||
2462 | case BuiltinType::SatShortFract: | ||||
2463 | case BuiltinType::SatFract: | ||||
2464 | case BuiltinType::SatLongFract: | ||||
2465 | case BuiltinType::SatUShortFract: | ||||
2466 | case BuiltinType::SatUFract: | ||||
2467 | case BuiltinType::SatULongFract: | ||||
2468 | case BuiltinType::BFloat16: | ||||
2469 | case BuiltinType::Float128: { | ||||
2470 | DiagnosticsEngine &Diags = Context.getDiags(); | ||||
2471 | unsigned DiagID = Diags.getCustomDiagID( | ||||
2472 | DiagnosticsEngine::Error, "cannot mangle this built-in %0 type yet"); | ||||
2473 | Diags.Report(Range.getBegin(), DiagID) | ||||
2474 | << T->getName(Context.getASTContext().getPrintingPolicy()) << Range; | ||||
2475 | break; | ||||
2476 | } | ||||
2477 | } | ||||
2478 | } | ||||
2479 | |||||
2480 | // <type> ::= <function-type> | ||||
2481 | void MicrosoftCXXNameMangler::mangleType(const FunctionProtoType *T, Qualifiers, | ||||
2482 | SourceRange) { | ||||
2483 | // Structors only appear in decls, so at this point we know it's not a | ||||
2484 | // structor type. | ||||
2485 | // FIXME: This may not be lambda-friendly. | ||||
2486 | if (T->getMethodQuals() || T->getRefQualifier() != RQ_None) { | ||||
2487 | Out << "$$A8@@"; | ||||
2488 | mangleFunctionType(T, /*D=*/nullptr, /*ForceThisQuals=*/true); | ||||
2489 | } else { | ||||
2490 | Out << "$$A6"; | ||||
2491 | mangleFunctionType(T); | ||||
2492 | } | ||||
2493 | } | ||||
2494 | void MicrosoftCXXNameMangler::mangleType(const FunctionNoProtoType *T, | ||||
2495 | Qualifiers, SourceRange) { | ||||
2496 | Out << "$$A6"; | ||||
2497 | mangleFunctionType(T); | ||||
2498 | } | ||||
2499 | |||||
2500 | void MicrosoftCXXNameMangler::mangleFunctionType(const FunctionType *T, | ||||
2501 | const FunctionDecl *D, | ||||
2502 | bool ForceThisQuals, | ||||
2503 | bool MangleExceptionSpec) { | ||||
2504 | // <function-type> ::= <this-cvr-qualifiers> <calling-convention> | ||||
2505 | // <return-type> <argument-list> <throw-spec> | ||||
2506 | const FunctionProtoType *Proto = dyn_cast<FunctionProtoType>(T); | ||||
2507 | |||||
2508 | SourceRange Range; | ||||
2509 | if (D
| ||||
2510 | |||||
2511 | bool IsInLambda = false; | ||||
2512 | bool IsStructor = false, HasThisQuals = ForceThisQuals, IsCtorClosure = false; | ||||
2513 | CallingConv CC = T->getCallConv(); | ||||
2514 | if (const CXXMethodDecl *MD
| ||||
2515 | if (MD->getParent()->isLambda()) | ||||
2516 | IsInLambda = true; | ||||
2517 | if (MD->isInstance()) | ||||
2518 | HasThisQuals = true; | ||||
2519 | if (isa<CXXDestructorDecl>(MD)) { | ||||
2520 | IsStructor = true; | ||||
2521 | } else if (isa<CXXConstructorDecl>(MD)) { | ||||
2522 | IsStructor = true; | ||||
2523 | IsCtorClosure = (StructorType == Ctor_CopyingClosure || | ||||
2524 | StructorType == Ctor_DefaultClosure) && | ||||
2525 | isStructorDecl(MD); | ||||
2526 | if (IsCtorClosure
| ||||
2527 | CC = getASTContext().getDefaultCallingConvention( | ||||
2528 | /*IsVariadic=*/false, /*IsCXXMethod=*/true); | ||||
2529 | } | ||||
2530 | } | ||||
2531 | |||||
2532 | // If this is a C++ instance method, mangle the CVR qualifiers for the | ||||
2533 | // this pointer. | ||||
2534 | if (HasThisQuals
| ||||
2535 | Qualifiers Quals = Proto->getMethodQuals(); | ||||
2536 | manglePointerExtQualifiers(Quals, /*PointeeType=*/QualType()); | ||||
2537 | mangleRefQualifier(Proto->getRefQualifier()); | ||||
2538 | mangleQualifiers(Quals, /*IsMember=*/false); | ||||
2539 | } | ||||
2540 | |||||
2541 | mangleCallingConvention(CC); | ||||
2542 | |||||
2543 | // <return-type> ::= <type> | ||||
2544 | // ::= @ # structors (they have no declared return type) | ||||
2545 | if (IsStructor
| ||||
2546 | if (isa<CXXDestructorDecl>(D) && isStructorDecl(D)) { | ||||
2547 | // The scalar deleting destructor takes an extra int argument which is not | ||||
2548 | // reflected in the AST. | ||||
2549 | if (StructorType == Dtor_Deleting) { | ||||
2550 | Out << (PointersAre64Bit ? "PEAXI@Z" : "PAXI@Z"); | ||||
2551 | return; | ||||
2552 | } | ||||
2553 | // The vbase destructor returns void which is not reflected in the AST. | ||||
2554 | if (StructorType == Dtor_Complete) { | ||||
2555 | Out << "XXZ"; | ||||
2556 | return; | ||||
2557 | } | ||||
2558 | } | ||||
2559 | if (IsCtorClosure
| ||||
2560 | // Default constructor closure and copy constructor closure both return | ||||
2561 | // void. | ||||
2562 | Out << 'X'; | ||||
2563 | |||||
2564 | if (StructorType == Ctor_DefaultClosure) { | ||||
2565 | // Default constructor closure always has no arguments. | ||||
2566 | Out << 'X'; | ||||
2567 | } else if (StructorType == Ctor_CopyingClosure) { | ||||
2568 | // Copy constructor closure always takes an unqualified reference. | ||||
2569 | mangleFunctionArgumentType(getASTContext().getLValueReferenceType( | ||||
2570 | Proto->getParamType(0) | ||||
2571 | ->getAs<LValueReferenceType>() | ||||
2572 | ->getPointeeType(), | ||||
2573 | /*SpelledAsLValue=*/true), | ||||
2574 | Range); | ||||
2575 | Out << '@'; | ||||
2576 | } else { | ||||
2577 | llvm_unreachable("unexpected constructor closure!")::llvm::llvm_unreachable_internal("unexpected constructor closure!" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 2577); | ||||
2578 | } | ||||
2579 | Out << 'Z'; | ||||
2580 | return; | ||||
2581 | } | ||||
2582 | Out << '@'; | ||||
2583 | } else if (IsInLambda && D && isa<CXXConversionDecl>(D)) { | ||||
2584 | // The only lambda conversion operators are to function pointers, which | ||||
2585 | // can differ by their calling convention and are typically deduced. So | ||||
2586 | // we make sure that this type gets mangled properly. | ||||
2587 | mangleType(T->getReturnType(), Range, QMM_Result); | ||||
2588 | } else { | ||||
2589 | QualType ResultType = T->getReturnType(); | ||||
2590 | if (IsInLambda && isa<CXXConversionDecl>(D)) { | ||||
2591 | // The only lambda conversion operators are to function pointers, which | ||||
2592 | // can differ by their calling convention and are typically deduced. So | ||||
2593 | // we make sure that this type gets mangled properly. | ||||
2594 | mangleType(ResultType, Range, QMM_Result); | ||||
2595 | } else if (const auto *AT = dyn_cast_or_null<AutoType>( | ||||
2596 | ResultType->getContainedAutoType())) { | ||||
2597 | Out << '?'; | ||||
2598 | mangleQualifiers(ResultType.getLocalQualifiers(), /*IsMember=*/false); | ||||
2599 | Out << '?'; | ||||
2600 | assert(AT->getKeyword() != AutoTypeKeyword::GNUAutoType &&((AT->getKeyword() != AutoTypeKeyword::GNUAutoType && "shouldn't need to mangle __auto_type!") ? static_cast<void > (0) : __assert_fail ("AT->getKeyword() != AutoTypeKeyword::GNUAutoType && \"shouldn't need to mangle __auto_type!\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 2601, __PRETTY_FUNCTION__)) | ||||
2601 | "shouldn't need to mangle __auto_type!")((AT->getKeyword() != AutoTypeKeyword::GNUAutoType && "shouldn't need to mangle __auto_type!") ? static_cast<void > (0) : __assert_fail ("AT->getKeyword() != AutoTypeKeyword::GNUAutoType && \"shouldn't need to mangle __auto_type!\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 2601, __PRETTY_FUNCTION__)); | ||||
2602 | mangleSourceName(AT->isDecltypeAuto() ? "<decltype-auto>" : "<auto>"); | ||||
2603 | Out << '@'; | ||||
2604 | } else if (IsInLambda) { | ||||
2605 | Out << '@'; | ||||
2606 | } else { | ||||
2607 | if (ResultType->isVoidType()) | ||||
2608 | ResultType = ResultType.getUnqualifiedType(); | ||||
2609 | mangleType(ResultType, Range, QMM_Result); | ||||
2610 | } | ||||
2611 | } | ||||
2612 | |||||
2613 | // <argument-list> ::= X # void | ||||
2614 | // ::= <type>+ @ | ||||
2615 | // ::= <type>* Z # varargs | ||||
2616 | if (!Proto
| ||||
2617 | // Function types without prototypes can arise when mangling a function type | ||||
2618 | // within an overloadable function in C. We mangle these as the absence of | ||||
2619 | // any parameter types (not even an empty parameter list). | ||||
2620 | Out << '@'; | ||||
2621 | } else if (Proto->getNumParams() == 0 && !Proto->isVariadic()) { | ||||
2622 | Out << 'X'; | ||||
2623 | } else { | ||||
2624 | // Happens for function pointer type arguments for example. | ||||
2625 | for (unsigned I = 0, E = Proto->getNumParams(); I != E; ++I) { | ||||
2626 | mangleFunctionArgumentType(Proto->getParamType(I), Range); | ||||
2627 | // Mangle each pass_object_size parameter as if it's a parameter of enum | ||||
2628 | // type passed directly after the parameter with the pass_object_size | ||||
2629 | // attribute. The aforementioned enum's name is __pass_object_size, and we | ||||
2630 | // pretend it resides in a top-level namespace called __clang. | ||||
2631 | // | ||||
2632 | // FIXME: Is there a defined extension notation for the MS ABI, or is it | ||||
2633 | // necessary to just cross our fingers and hope this type+namespace | ||||
2634 | // combination doesn't conflict with anything? | ||||
2635 | if (D) | ||||
2636 | if (const auto *P = D->getParamDecl(I)->getAttr<PassObjectSizeAttr>()) | ||||
2637 | manglePassObjectSizeArg(P); | ||||
2638 | } | ||||
2639 | // <builtin-type> ::= Z # ellipsis | ||||
2640 | if (Proto->isVariadic()) | ||||
2641 | Out << 'Z'; | ||||
2642 | else | ||||
2643 | Out << '@'; | ||||
2644 | } | ||||
2645 | |||||
2646 | if (MangleExceptionSpec
| ||||
2647 | getASTContext().getLangOpts().isCompatibleWithMSVC( | ||||
2648 | LangOptions::MSVC2017_5)) | ||||
2649 | mangleThrowSpecification(Proto); | ||||
2650 | else | ||||
2651 | Out << 'Z'; | ||||
2652 | } | ||||
2653 | |||||
2654 | void MicrosoftCXXNameMangler::mangleFunctionClass(const FunctionDecl *FD) { | ||||
2655 | // <function-class> ::= <member-function> E? # E designates a 64-bit 'this' | ||||
2656 | // # pointer. in 64-bit mode *all* | ||||
2657 | // # 'this' pointers are 64-bit. | ||||
2658 | // ::= <global-function> | ||||
2659 | // <member-function> ::= A # private: near | ||||
2660 | // ::= B # private: far | ||||
2661 | // ::= C # private: static near | ||||
2662 | // ::= D # private: static far | ||||
2663 | // ::= E # private: virtual near | ||||
2664 | // ::= F # private: virtual far | ||||
2665 | // ::= I # protected: near | ||||
2666 | // ::= J # protected: far | ||||
2667 | // ::= K # protected: static near | ||||
2668 | // ::= L # protected: static far | ||||
2669 | // ::= M # protected: virtual near | ||||
2670 | // ::= N # protected: virtual far | ||||
2671 | // ::= Q # public: near | ||||
2672 | // ::= R # public: far | ||||
2673 | // ::= S # public: static near | ||||
2674 | // ::= T # public: static far | ||||
2675 | // ::= U # public: virtual near | ||||
2676 | // ::= V # public: virtual far | ||||
2677 | // <global-function> ::= Y # global near | ||||
2678 | // ::= Z # global far | ||||
2679 | if (const CXXMethodDecl *MD = dyn_cast<CXXMethodDecl>(FD)) { | ||||
2680 | bool IsVirtual = MD->isVirtual(); | ||||
2681 | // When mangling vbase destructor variants, ignore whether or not the | ||||
2682 | // underlying destructor was defined to be virtual. | ||||
2683 | if (isa<CXXDestructorDecl>(MD) && isStructorDecl(MD) && | ||||
2684 | StructorType == Dtor_Complete) { | ||||
2685 | IsVirtual = false; | ||||
2686 | } | ||||
2687 | switch (MD->getAccess()) { | ||||
2688 | case AS_none: | ||||
2689 | llvm_unreachable("Unsupported access specifier")::llvm::llvm_unreachable_internal("Unsupported access specifier" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 2689); | ||||
2690 | case AS_private: | ||||
2691 | if (MD->isStatic()) | ||||
2692 | Out << 'C'; | ||||
2693 | else if (IsVirtual) | ||||
2694 | Out << 'E'; | ||||
2695 | else | ||||
2696 | Out << 'A'; | ||||
2697 | break; | ||||
2698 | case AS_protected: | ||||
2699 | if (MD->isStatic()) | ||||
2700 | Out << 'K'; | ||||
2701 | else if (IsVirtual) | ||||
2702 | Out << 'M'; | ||||
2703 | else | ||||
2704 | Out << 'I'; | ||||
2705 | break; | ||||
2706 | case AS_public: | ||||
2707 | if (MD->isStatic()) | ||||
2708 | Out << 'S'; | ||||
2709 | else if (IsVirtual) | ||||
2710 | Out << 'U'; | ||||
2711 | else | ||||
2712 | Out << 'Q'; | ||||
2713 | } | ||||
2714 | } else { | ||||
2715 | Out << 'Y'; | ||||
2716 | } | ||||
2717 | } | ||||
2718 | void MicrosoftCXXNameMangler::mangleCallingConvention(CallingConv CC) { | ||||
2719 | // <calling-convention> ::= A # __cdecl | ||||
2720 | // ::= B # __export __cdecl | ||||
2721 | // ::= C # __pascal | ||||
2722 | // ::= D # __export __pascal | ||||
2723 | // ::= E # __thiscall | ||||
2724 | // ::= F # __export __thiscall | ||||
2725 | // ::= G # __stdcall | ||||
2726 | // ::= H # __export __stdcall | ||||
2727 | // ::= I # __fastcall | ||||
2728 | // ::= J # __export __fastcall | ||||
2729 | // ::= Q # __vectorcall | ||||
2730 | // ::= S # __attribute__((__swiftcall__)) // Clang-only | ||||
2731 | // ::= w # __regcall | ||||
2732 | // The 'export' calling conventions are from a bygone era | ||||
2733 | // (*cough*Win16*cough*) when functions were declared for export with | ||||
2734 | // that keyword. (It didn't actually export them, it just made them so | ||||
2735 | // that they could be in a DLL and somebody from another module could call | ||||
2736 | // them.) | ||||
2737 | |||||
2738 | switch (CC) { | ||||
2739 | default: | ||||
2740 | llvm_unreachable("Unsupported CC for mangling")::llvm::llvm_unreachable_internal("Unsupported CC for mangling" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 2740); | ||||
2741 | case CC_Win64: | ||||
2742 | case CC_X86_64SysV: | ||||
2743 | case CC_C: Out << 'A'; break; | ||||
2744 | case CC_X86Pascal: Out << 'C'; break; | ||||
2745 | case CC_X86ThisCall: Out << 'E'; break; | ||||
2746 | case CC_X86StdCall: Out << 'G'; break; | ||||
2747 | case CC_X86FastCall: Out << 'I'; break; | ||||
2748 | case CC_X86VectorCall: Out << 'Q'; break; | ||||
2749 | case CC_Swift: Out << 'S'; break; | ||||
2750 | case CC_PreserveMost: Out << 'U'; break; | ||||
2751 | case CC_X86RegCall: Out << 'w'; break; | ||||
2752 | } | ||||
2753 | } | ||||
2754 | void MicrosoftCXXNameMangler::mangleCallingConvention(const FunctionType *T) { | ||||
2755 | mangleCallingConvention(T->getCallConv()); | ||||
2756 | } | ||||
2757 | |||||
2758 | void MicrosoftCXXNameMangler::mangleThrowSpecification( | ||||
2759 | const FunctionProtoType *FT) { | ||||
2760 | // <throw-spec> ::= Z # (default) | ||||
2761 | // ::= _E # noexcept | ||||
2762 | if (FT->canThrow()) | ||||
| |||||
2763 | Out << 'Z'; | ||||
2764 | else | ||||
2765 | Out << "_E"; | ||||
2766 | } | ||||
2767 | |||||
2768 | void MicrosoftCXXNameMangler::mangleType(const UnresolvedUsingType *T, | ||||
2769 | Qualifiers, SourceRange Range) { | ||||
2770 | // Probably should be mangled as a template instantiation; need to see what | ||||
2771 | // VC does first. | ||||
2772 | DiagnosticsEngine &Diags = Context.getDiags(); | ||||
2773 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, | ||||
2774 | "cannot mangle this unresolved dependent type yet"); | ||||
2775 | Diags.Report(Range.getBegin(), DiagID) | ||||
2776 | << Range; | ||||
2777 | } | ||||
2778 | |||||
2779 | // <type> ::= <union-type> | <struct-type> | <class-type> | <enum-type> | ||||
2780 | // <union-type> ::= T <name> | ||||
2781 | // <struct-type> ::= U <name> | ||||
2782 | // <class-type> ::= V <name> | ||||
2783 | // <enum-type> ::= W4 <name> | ||||
2784 | void MicrosoftCXXNameMangler::mangleTagTypeKind(TagTypeKind TTK) { | ||||
2785 | switch (TTK) { | ||||
2786 | case TTK_Union: | ||||
2787 | Out << 'T'; | ||||
2788 | break; | ||||
2789 | case TTK_Struct: | ||||
2790 | case TTK_Interface: | ||||
2791 | Out << 'U'; | ||||
2792 | break; | ||||
2793 | case TTK_Class: | ||||
2794 | Out << 'V'; | ||||
2795 | break; | ||||
2796 | case TTK_Enum: | ||||
2797 | Out << "W4"; | ||||
2798 | break; | ||||
2799 | } | ||||
2800 | } | ||||
2801 | void MicrosoftCXXNameMangler::mangleType(const EnumType *T, Qualifiers, | ||||
2802 | SourceRange) { | ||||
2803 | mangleType(cast<TagType>(T)->getDecl()); | ||||
2804 | } | ||||
2805 | void MicrosoftCXXNameMangler::mangleType(const RecordType *T, Qualifiers, | ||||
2806 | SourceRange) { | ||||
2807 | mangleType(cast<TagType>(T)->getDecl()); | ||||
2808 | } | ||||
2809 | void MicrosoftCXXNameMangler::mangleType(const TagDecl *TD) { | ||||
2810 | mangleTagTypeKind(TD->getTagKind()); | ||||
2811 | mangleName(TD); | ||||
2812 | } | ||||
2813 | |||||
2814 | // If you add a call to this, consider updating isArtificialTagType() too. | ||||
2815 | void MicrosoftCXXNameMangler::mangleArtificialTagType( | ||||
2816 | TagTypeKind TK, StringRef UnqualifiedName, | ||||
2817 | ArrayRef<StringRef> NestedNames) { | ||||
2818 | // <name> ::= <unscoped-name> {[<named-scope>]+ | [<nested-name>]}? @ | ||||
2819 | mangleTagTypeKind(TK); | ||||
2820 | |||||
2821 | // Always start with the unqualified name. | ||||
2822 | mangleSourceName(UnqualifiedName); | ||||
2823 | |||||
2824 | for (auto I = NestedNames.rbegin(), E = NestedNames.rend(); I != E; ++I) | ||||
2825 | mangleSourceName(*I); | ||||
2826 | |||||
2827 | // Terminate the whole name with an '@'. | ||||
2828 | Out << '@'; | ||||
2829 | } | ||||
2830 | |||||
2831 | // <type> ::= <array-type> | ||||
2832 | // <array-type> ::= <pointer-cvr-qualifiers> <cvr-qualifiers> | ||||
2833 | // [Y <dimension-count> <dimension>+] | ||||
2834 | // <element-type> # as global, E is never required | ||||
2835 | // It's supposed to be the other way around, but for some strange reason, it | ||||
2836 | // isn't. Today this behavior is retained for the sole purpose of backwards | ||||
2837 | // compatibility. | ||||
2838 | void MicrosoftCXXNameMangler::mangleDecayedArrayType(const ArrayType *T) { | ||||
2839 | // This isn't a recursive mangling, so now we have to do it all in this | ||||
2840 | // one call. | ||||
2841 | manglePointerCVQualifiers(T->getElementType().getQualifiers()); | ||||
2842 | mangleType(T->getElementType(), SourceRange()); | ||||
2843 | } | ||||
2844 | void MicrosoftCXXNameMangler::mangleType(const ConstantArrayType *T, Qualifiers, | ||||
2845 | SourceRange) { | ||||
2846 | llvm_unreachable("Should have been special cased")::llvm::llvm_unreachable_internal("Should have been special cased" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 2846); | ||||
2847 | } | ||||
2848 | void MicrosoftCXXNameMangler::mangleType(const VariableArrayType *T, Qualifiers, | ||||
2849 | SourceRange) { | ||||
2850 | llvm_unreachable("Should have been special cased")::llvm::llvm_unreachable_internal("Should have been special cased" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 2850); | ||||
2851 | } | ||||
2852 | void MicrosoftCXXNameMangler::mangleType(const DependentSizedArrayType *T, | ||||
2853 | Qualifiers, SourceRange) { | ||||
2854 | llvm_unreachable("Should have been special cased")::llvm::llvm_unreachable_internal("Should have been special cased" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 2854); | ||||
2855 | } | ||||
2856 | void MicrosoftCXXNameMangler::mangleType(const IncompleteArrayType *T, | ||||
2857 | Qualifiers, SourceRange) { | ||||
2858 | llvm_unreachable("Should have been special cased")::llvm::llvm_unreachable_internal("Should have been special cased" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 2858); | ||||
2859 | } | ||||
2860 | void MicrosoftCXXNameMangler::mangleArrayType(const ArrayType *T) { | ||||
2861 | QualType ElementTy(T, 0); | ||||
2862 | SmallVector<llvm::APInt, 3> Dimensions; | ||||
2863 | for (;;) { | ||||
2864 | if (ElementTy->isConstantArrayType()) { | ||||
2865 | const ConstantArrayType *CAT = | ||||
2866 | getASTContext().getAsConstantArrayType(ElementTy); | ||||
2867 | Dimensions.push_back(CAT->getSize()); | ||||
2868 | ElementTy = CAT->getElementType(); | ||||
2869 | } else if (ElementTy->isIncompleteArrayType()) { | ||||
2870 | const IncompleteArrayType *IAT = | ||||
2871 | getASTContext().getAsIncompleteArrayType(ElementTy); | ||||
2872 | Dimensions.push_back(llvm::APInt(32, 0)); | ||||
2873 | ElementTy = IAT->getElementType(); | ||||
2874 | } else if (ElementTy->isVariableArrayType()) { | ||||
2875 | const VariableArrayType *VAT = | ||||
2876 | getASTContext().getAsVariableArrayType(ElementTy); | ||||
2877 | Dimensions.push_back(llvm::APInt(32, 0)); | ||||
2878 | ElementTy = VAT->getElementType(); | ||||
2879 | } else if (ElementTy->isDependentSizedArrayType()) { | ||||
2880 | // The dependent expression has to be folded into a constant (TODO). | ||||
2881 | const DependentSizedArrayType *DSAT = | ||||
2882 | getASTContext().getAsDependentSizedArrayType(ElementTy); | ||||
2883 | DiagnosticsEngine &Diags = Context.getDiags(); | ||||
2884 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, | ||||
2885 | "cannot mangle this dependent-length array yet"); | ||||
2886 | Diags.Report(DSAT->getSizeExpr()->getExprLoc(), DiagID) | ||||
2887 | << DSAT->getBracketsRange(); | ||||
2888 | return; | ||||
2889 | } else { | ||||
2890 | break; | ||||
2891 | } | ||||
2892 | } | ||||
2893 | Out << 'Y'; | ||||
2894 | // <dimension-count> ::= <number> # number of extra dimensions | ||||
2895 | mangleNumber(Dimensions.size()); | ||||
2896 | for (const llvm::APInt &Dimension : Dimensions) | ||||
2897 | mangleNumber(Dimension.getLimitedValue()); | ||||
2898 | mangleType(ElementTy, SourceRange(), QMM_Escape); | ||||
2899 | } | ||||
2900 | |||||
2901 | // <type> ::= <pointer-to-member-type> | ||||
2902 | // <pointer-to-member-type> ::= <pointer-cvr-qualifiers> <cvr-qualifiers> | ||||
2903 | // <class name> <type> | ||||
2904 | void MicrosoftCXXNameMangler::mangleType(const MemberPointerType *T, | ||||
2905 | Qualifiers Quals, SourceRange Range) { | ||||
2906 | QualType PointeeType = T->getPointeeType(); | ||||
2907 | manglePointerCVQualifiers(Quals); | ||||
2908 | manglePointerExtQualifiers(Quals, PointeeType); | ||||
2909 | if (const FunctionProtoType *FPT = PointeeType->getAs<FunctionProtoType>()) { | ||||
2910 | Out << '8'; | ||||
2911 | mangleName(T->getClass()->castAs<RecordType>()->getDecl()); | ||||
2912 | mangleFunctionType(FPT, nullptr, true); | ||||
2913 | } else { | ||||
2914 | mangleQualifiers(PointeeType.getQualifiers(), true); | ||||
2915 | mangleName(T->getClass()->castAs<RecordType>()->getDecl()); | ||||
2916 | mangleType(PointeeType, Range, QMM_Drop); | ||||
2917 | } | ||||
2918 | } | ||||
2919 | |||||
2920 | void MicrosoftCXXNameMangler::mangleType(const TemplateTypeParmType *T, | ||||
2921 | Qualifiers, SourceRange Range) { | ||||
2922 | DiagnosticsEngine &Diags = Context.getDiags(); | ||||
2923 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, | ||||
2924 | "cannot mangle this template type parameter type yet"); | ||||
2925 | Diags.Report(Range.getBegin(), DiagID) | ||||
2926 | << Range; | ||||
2927 | } | ||||
2928 | |||||
2929 | void MicrosoftCXXNameMangler::mangleType(const SubstTemplateTypeParmPackType *T, | ||||
2930 | Qualifiers, SourceRange Range) { | ||||
2931 | DiagnosticsEngine &Diags = Context.getDiags(); | ||||
2932 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, | ||||
2933 | "cannot mangle this substituted parameter pack yet"); | ||||
2934 | Diags.Report(Range.getBegin(), DiagID) | ||||
2935 | << Range; | ||||
2936 | } | ||||
2937 | |||||
2938 | // <type> ::= <pointer-type> | ||||
2939 | // <pointer-type> ::= E? <pointer-cvr-qualifiers> <cvr-qualifiers> <type> | ||||
2940 | // # the E is required for 64-bit non-static pointers | ||||
2941 | void MicrosoftCXXNameMangler::mangleType(const PointerType *T, Qualifiers Quals, | ||||
2942 | SourceRange Range) { | ||||
2943 | QualType PointeeType = T->getPointeeType(); | ||||
2944 | manglePointerCVQualifiers(Quals); | ||||
2945 | manglePointerExtQualifiers(Quals, PointeeType); | ||||
2946 | |||||
2947 | // For pointer size address spaces, go down the same type mangling path as | ||||
2948 | // non address space types. | ||||
2949 | LangAS AddrSpace = PointeeType.getQualifiers().getAddressSpace(); | ||||
2950 | if (isPtrSizeAddressSpace(AddrSpace) || AddrSpace == LangAS::Default) | ||||
2951 | mangleType(PointeeType, Range); | ||||
2952 | else | ||||
2953 | mangleAddressSpaceType(PointeeType, PointeeType.getQualifiers(), Range); | ||||
2954 | } | ||||
2955 | |||||
2956 | void MicrosoftCXXNameMangler::mangleType(const ObjCObjectPointerType *T, | ||||
2957 | Qualifiers Quals, SourceRange Range) { | ||||
2958 | QualType PointeeType = T->getPointeeType(); | ||||
2959 | switch (Quals.getObjCLifetime()) { | ||||
2960 | case Qualifiers::OCL_None: | ||||
2961 | case Qualifiers::OCL_ExplicitNone: | ||||
2962 | break; | ||||
2963 | case Qualifiers::OCL_Autoreleasing: | ||||
2964 | case Qualifiers::OCL_Strong: | ||||
2965 | case Qualifiers::OCL_Weak: | ||||
2966 | return mangleObjCLifetime(PointeeType, Quals, Range); | ||||
2967 | } | ||||
2968 | manglePointerCVQualifiers(Quals); | ||||
2969 | manglePointerExtQualifiers(Quals, PointeeType); | ||||
2970 | mangleType(PointeeType, Range); | ||||
2971 | } | ||||
2972 | |||||
2973 | // <type> ::= <reference-type> | ||||
2974 | // <reference-type> ::= A E? <cvr-qualifiers> <type> | ||||
2975 | // # the E is required for 64-bit non-static lvalue references | ||||
2976 | void MicrosoftCXXNameMangler::mangleType(const LValueReferenceType *T, | ||||
2977 | Qualifiers Quals, SourceRange Range) { | ||||
2978 | QualType PointeeType = T->getPointeeType(); | ||||
2979 | assert(!Quals.hasConst() && !Quals.hasVolatile() && "unexpected qualifier!")((!Quals.hasConst() && !Quals.hasVolatile() && "unexpected qualifier!") ? static_cast<void> (0) : __assert_fail ("!Quals.hasConst() && !Quals.hasVolatile() && \"unexpected qualifier!\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 2979, __PRETTY_FUNCTION__)); | ||||
2980 | Out << 'A'; | ||||
2981 | manglePointerExtQualifiers(Quals, PointeeType); | ||||
2982 | mangleType(PointeeType, Range); | ||||
2983 | } | ||||
2984 | |||||
2985 | // <type> ::= <r-value-reference-type> | ||||
2986 | // <r-value-reference-type> ::= $$Q E? <cvr-qualifiers> <type> | ||||
2987 | // # the E is required for 64-bit non-static rvalue references | ||||
2988 | void MicrosoftCXXNameMangler::mangleType(const RValueReferenceType *T, | ||||
2989 | Qualifiers Quals, SourceRange Range) { | ||||
2990 | QualType PointeeType = T->getPointeeType(); | ||||
2991 | assert(!Quals.hasConst() && !Quals.hasVolatile() && "unexpected qualifier!")((!Quals.hasConst() && !Quals.hasVolatile() && "unexpected qualifier!") ? static_cast<void> (0) : __assert_fail ("!Quals.hasConst() && !Quals.hasVolatile() && \"unexpected qualifier!\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 2991, __PRETTY_FUNCTION__)); | ||||
2992 | Out << "$$Q"; | ||||
2993 | manglePointerExtQualifiers(Quals, PointeeType); | ||||
2994 | mangleType(PointeeType, Range); | ||||
2995 | } | ||||
2996 | |||||
2997 | void MicrosoftCXXNameMangler::mangleType(const ComplexType *T, Qualifiers, | ||||
2998 | SourceRange Range) { | ||||
2999 | QualType ElementType = T->getElementType(); | ||||
3000 | |||||
3001 | llvm::SmallString<64> TemplateMangling; | ||||
3002 | llvm::raw_svector_ostream Stream(TemplateMangling); | ||||
3003 | MicrosoftCXXNameMangler Extra(Context, Stream); | ||||
3004 | Stream << "?$"; | ||||
3005 | Extra.mangleSourceName("_Complex"); | ||||
3006 | Extra.mangleType(ElementType, Range, QMM_Escape); | ||||
3007 | |||||
3008 | mangleArtificialTagType(TTK_Struct, TemplateMangling, {"__clang"}); | ||||
3009 | } | ||||
3010 | |||||
3011 | // Returns true for types that mangleArtificialTagType() gets called for with | ||||
3012 | // TTK_Union, TTK_Struct, TTK_Class and where compatibility with MSVC's | ||||
3013 | // mangling matters. | ||||
3014 | // (It doesn't matter for Objective-C types and the like that cl.exe doesn't | ||||
3015 | // support.) | ||||
3016 | bool MicrosoftCXXNameMangler::isArtificialTagType(QualType T) const { | ||||
3017 | const Type *ty = T.getTypePtr(); | ||||
3018 | switch (ty->getTypeClass()) { | ||||
3019 | default: | ||||
3020 | return false; | ||||
3021 | |||||
3022 | case Type::Vector: { | ||||
3023 | // For ABI compatibility only __m64, __m128(id), and __m256(id) matter, | ||||
3024 | // but since mangleType(VectorType*) always calls mangleArtificialTagType() | ||||
3025 | // just always return true (the other vector types are clang-only). | ||||
3026 | return true; | ||||
3027 | } | ||||
3028 | } | ||||
3029 | } | ||||
3030 | |||||
3031 | void MicrosoftCXXNameMangler::mangleType(const VectorType *T, Qualifiers Quals, | ||||
3032 | SourceRange Range) { | ||||
3033 | const BuiltinType *ET = T->getElementType()->getAs<BuiltinType>(); | ||||
3034 | assert(ET && "vectors with non-builtin elements are unsupported")((ET && "vectors with non-builtin elements are unsupported" ) ? static_cast<void> (0) : __assert_fail ("ET && \"vectors with non-builtin elements are unsupported\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 3034, __PRETTY_FUNCTION__)); | ||||
3035 | uint64_t Width = getASTContext().getTypeSize(T); | ||||
3036 | // Pattern match exactly the typedefs in our intrinsic headers. Anything that | ||||
3037 | // doesn't match the Intel types uses a custom mangling below. | ||||
3038 | size_t OutSizeBefore = Out.tell(); | ||||
3039 | if (!isa<ExtVectorType>(T)) { | ||||
3040 | if (getASTContext().getTargetInfo().getTriple().isX86()) { | ||||
3041 | if (Width == 64 && ET->getKind() == BuiltinType::LongLong) { | ||||
3042 | mangleArtificialTagType(TTK_Union, "__m64"); | ||||
3043 | } else if (Width >= 128) { | ||||
3044 | if (ET->getKind() == BuiltinType::Float) | ||||
3045 | mangleArtificialTagType(TTK_Union, "__m" + llvm::utostr(Width)); | ||||
3046 | else if (ET->getKind() == BuiltinType::LongLong) | ||||
3047 | mangleArtificialTagType(TTK_Union, "__m" + llvm::utostr(Width) + 'i'); | ||||
3048 | else if (ET->getKind() == BuiltinType::Double) | ||||
3049 | mangleArtificialTagType(TTK_Struct, "__m" + llvm::utostr(Width) + 'd'); | ||||
3050 | } | ||||
3051 | } | ||||
3052 | } | ||||
3053 | |||||
3054 | bool IsBuiltin = Out.tell() != OutSizeBefore; | ||||
3055 | if (!IsBuiltin) { | ||||
3056 | // The MS ABI doesn't have a special mangling for vector types, so we define | ||||
3057 | // our own mangling to handle uses of __vector_size__ on user-specified | ||||
3058 | // types, and for extensions like __v4sf. | ||||
3059 | |||||
3060 | llvm::SmallString<64> TemplateMangling; | ||||
3061 | llvm::raw_svector_ostream Stream(TemplateMangling); | ||||
3062 | MicrosoftCXXNameMangler Extra(Context, Stream); | ||||
3063 | Stream << "?$"; | ||||
3064 | Extra.mangleSourceName("__vector"); | ||||
3065 | Extra.mangleType(QualType(ET, 0), Range, QMM_Escape); | ||||
3066 | Extra.mangleIntegerLiteral(llvm::APSInt::getUnsigned(T->getNumElements())); | ||||
3067 | |||||
3068 | mangleArtificialTagType(TTK_Union, TemplateMangling, {"__clang"}); | ||||
3069 | } | ||||
3070 | } | ||||
3071 | |||||
3072 | void MicrosoftCXXNameMangler::mangleType(const ExtVectorType *T, | ||||
3073 | Qualifiers Quals, SourceRange Range) { | ||||
3074 | mangleType(static_cast<const VectorType *>(T), Quals, Range); | ||||
3075 | } | ||||
3076 | |||||
3077 | void MicrosoftCXXNameMangler::mangleType(const DependentVectorType *T, | ||||
3078 | Qualifiers, SourceRange Range) { | ||||
3079 | DiagnosticsEngine &Diags = Context.getDiags(); | ||||
3080 | unsigned DiagID = Diags.getCustomDiagID( | ||||
3081 | DiagnosticsEngine::Error, | ||||
3082 | "cannot mangle this dependent-sized vector type yet"); | ||||
3083 | Diags.Report(Range.getBegin(), DiagID) << Range; | ||||
3084 | } | ||||
3085 | |||||
3086 | void MicrosoftCXXNameMangler::mangleType(const DependentSizedExtVectorType *T, | ||||
3087 | Qualifiers, SourceRange Range) { | ||||
3088 | DiagnosticsEngine &Diags = Context.getDiags(); | ||||
3089 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, | ||||
3090 | "cannot mangle this dependent-sized extended vector type yet"); | ||||
3091 | Diags.Report(Range.getBegin(), DiagID) | ||||
3092 | << Range; | ||||
3093 | } | ||||
3094 | |||||
3095 | void MicrosoftCXXNameMangler::mangleType(const ConstantMatrixType *T, | ||||
3096 | Qualifiers quals, SourceRange Range) { | ||||
3097 | DiagnosticsEngine &Diags = Context.getDiags(); | ||||
3098 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, | ||||
3099 | "Cannot mangle this matrix type yet"); | ||||
3100 | Diags.Report(Range.getBegin(), DiagID) << Range; | ||||
3101 | } | ||||
3102 | |||||
3103 | void MicrosoftCXXNameMangler::mangleType(const DependentSizedMatrixType *T, | ||||
3104 | Qualifiers quals, SourceRange Range) { | ||||
3105 | DiagnosticsEngine &Diags = Context.getDiags(); | ||||
3106 | unsigned DiagID = Diags.getCustomDiagID( | ||||
3107 | DiagnosticsEngine::Error, | ||||
3108 | "Cannot mangle this dependent-sized matrix type yet"); | ||||
3109 | Diags.Report(Range.getBegin(), DiagID) << Range; | ||||
3110 | } | ||||
3111 | |||||
3112 | void MicrosoftCXXNameMangler::mangleType(const DependentAddressSpaceType *T, | ||||
3113 | Qualifiers, SourceRange Range) { | ||||
3114 | DiagnosticsEngine &Diags = Context.getDiags(); | ||||
3115 | unsigned DiagID = Diags.getCustomDiagID( | ||||
3116 | DiagnosticsEngine::Error, | ||||
3117 | "cannot mangle this dependent address space type yet"); | ||||
3118 | Diags.Report(Range.getBegin(), DiagID) << Range; | ||||
3119 | } | ||||
3120 | |||||
3121 | void MicrosoftCXXNameMangler::mangleType(const ObjCInterfaceType *T, Qualifiers, | ||||
3122 | SourceRange) { | ||||
3123 | // ObjC interfaces have structs underlying them. | ||||
3124 | mangleTagTypeKind(TTK_Struct); | ||||
3125 | mangleName(T->getDecl()); | ||||
3126 | } | ||||
3127 | |||||
3128 | void MicrosoftCXXNameMangler::mangleType(const ObjCObjectType *T, | ||||
3129 | Qualifiers Quals, SourceRange Range) { | ||||
3130 | if (T->isKindOfType()) | ||||
3131 | return mangleObjCKindOfType(T, Quals, Range); | ||||
3132 | |||||
3133 | if (T->qual_empty() && !T->isSpecialized()) | ||||
3134 | return mangleType(T->getBaseType(), Range, QMM_Drop); | ||||
3135 | |||||
3136 | ArgBackRefMap OuterFunArgsContext; | ||||
3137 | ArgBackRefMap OuterTemplateArgsContext; | ||||
3138 | BackRefVec OuterTemplateContext; | ||||
3139 | |||||
3140 | FunArgBackReferences.swap(OuterFunArgsContext); | ||||
3141 | TemplateArgBackReferences.swap(OuterTemplateArgsContext); | ||||
3142 | NameBackReferences.swap(OuterTemplateContext); | ||||
3143 | |||||
3144 | mangleTagTypeKind(TTK_Struct); | ||||
3145 | |||||
3146 | Out << "?$"; | ||||
3147 | if (T->isObjCId()) | ||||
3148 | mangleSourceName("objc_object"); | ||||
3149 | else if (T->isObjCClass()) | ||||
3150 | mangleSourceName("objc_class"); | ||||
3151 | else | ||||
3152 | mangleSourceName(T->getInterface()->getName()); | ||||
3153 | |||||
3154 | for (const auto &Q : T->quals()) | ||||
3155 | mangleObjCProtocol(Q); | ||||
3156 | |||||
3157 | if (T->isSpecialized()) | ||||
3158 | for (const auto &TA : T->getTypeArgs()) | ||||
3159 | mangleType(TA, Range, QMM_Drop); | ||||
3160 | |||||
3161 | Out << '@'; | ||||
3162 | |||||
3163 | Out << '@'; | ||||
3164 | |||||
3165 | FunArgBackReferences.swap(OuterFunArgsContext); | ||||
3166 | TemplateArgBackReferences.swap(OuterTemplateArgsContext); | ||||
3167 | NameBackReferences.swap(OuterTemplateContext); | ||||
3168 | } | ||||
3169 | |||||
3170 | void MicrosoftCXXNameMangler::mangleType(const BlockPointerType *T, | ||||
3171 | Qualifiers Quals, SourceRange Range) { | ||||
3172 | QualType PointeeType = T->getPointeeType(); | ||||
3173 | manglePointerCVQualifiers(Quals); | ||||
3174 | manglePointerExtQualifiers(Quals, PointeeType); | ||||
3175 | |||||
3176 | Out << "_E"; | ||||
3177 | |||||
3178 | mangleFunctionType(PointeeType->castAs<FunctionProtoType>()); | ||||
3179 | } | ||||
3180 | |||||
3181 | void MicrosoftCXXNameMangler::mangleType(const InjectedClassNameType *, | ||||
3182 | Qualifiers, SourceRange) { | ||||
3183 | llvm_unreachable("Cannot mangle injected class name type.")::llvm::llvm_unreachable_internal("Cannot mangle injected class name type." , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 3183); | ||||
3184 | } | ||||
3185 | |||||
3186 | void MicrosoftCXXNameMangler::mangleType(const TemplateSpecializationType *T, | ||||
3187 | Qualifiers, SourceRange Range) { | ||||
3188 | DiagnosticsEngine &Diags = Context.getDiags(); | ||||
3189 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, | ||||
3190 | "cannot mangle this template specialization type yet"); | ||||
3191 | Diags.Report(Range.getBegin(), DiagID) | ||||
3192 | << Range; | ||||
3193 | } | ||||
3194 | |||||
3195 | void MicrosoftCXXNameMangler::mangleType(const DependentNameType *T, Qualifiers, | ||||
3196 | SourceRange Range) { | ||||
3197 | DiagnosticsEngine &Diags = Context.getDiags(); | ||||
3198 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, | ||||
3199 | "cannot mangle this dependent name type yet"); | ||||
3200 | Diags.Report(Range.getBegin(), DiagID) | ||||
3201 | << Range; | ||||
3202 | } | ||||
3203 | |||||
3204 | void MicrosoftCXXNameMangler::mangleType( | ||||
3205 | const DependentTemplateSpecializationType *T, Qualifiers, | ||||
3206 | SourceRange Range) { | ||||
3207 | DiagnosticsEngine &Diags = Context.getDiags(); | ||||
3208 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, | ||||
3209 | "cannot mangle this dependent template specialization type yet"); | ||||
3210 | Diags.Report(Range.getBegin(), DiagID) | ||||
3211 | << Range; | ||||
3212 | } | ||||
3213 | |||||
3214 | void MicrosoftCXXNameMangler::mangleType(const PackExpansionType *T, Qualifiers, | ||||
3215 | SourceRange Range) { | ||||
3216 | DiagnosticsEngine &Diags = Context.getDiags(); | ||||
3217 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, | ||||
3218 | "cannot mangle this pack expansion yet"); | ||||
3219 | Diags.Report(Range.getBegin(), DiagID) | ||||
3220 | << Range; | ||||
3221 | } | ||||
3222 | |||||
3223 | void MicrosoftCXXNameMangler::mangleType(const TypeOfType *T, Qualifiers, | ||||
3224 | SourceRange Range) { | ||||
3225 | DiagnosticsEngine &Diags = Context.getDiags(); | ||||
3226 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, | ||||
3227 | "cannot mangle this typeof(type) yet"); | ||||
3228 | Diags.Report(Range.getBegin(), DiagID) | ||||
3229 | << Range; | ||||
3230 | } | ||||
3231 | |||||
3232 | void MicrosoftCXXNameMangler::mangleType(const TypeOfExprType *T, Qualifiers, | ||||
3233 | SourceRange Range) { | ||||
3234 | DiagnosticsEngine &Diags = Context.getDiags(); | ||||
3235 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, | ||||
3236 | "cannot mangle this typeof(expression) yet"); | ||||
3237 | Diags.Report(Range.getBegin(), DiagID) | ||||
3238 | << Range; | ||||
3239 | } | ||||
3240 | |||||
3241 | void MicrosoftCXXNameMangler::mangleType(const DecltypeType *T, Qualifiers, | ||||
3242 | SourceRange Range) { | ||||
3243 | DiagnosticsEngine &Diags = Context.getDiags(); | ||||
3244 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, | ||||
3245 | "cannot mangle this decltype() yet"); | ||||
3246 | Diags.Report(Range.getBegin(), DiagID) | ||||
3247 | << Range; | ||||
3248 | } | ||||
3249 | |||||
3250 | void MicrosoftCXXNameMangler::mangleType(const UnaryTransformType *T, | ||||
3251 | Qualifiers, SourceRange Range) { | ||||
3252 | DiagnosticsEngine &Diags = Context.getDiags(); | ||||
3253 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, | ||||
3254 | "cannot mangle this unary transform type yet"); | ||||
3255 | Diags.Report(Range.getBegin(), DiagID) | ||||
3256 | << Range; | ||||
3257 | } | ||||
3258 | |||||
3259 | void MicrosoftCXXNameMangler::mangleType(const AutoType *T, Qualifiers, | ||||
3260 | SourceRange Range) { | ||||
3261 | assert(T->getDeducedType().isNull() && "expecting a dependent type!")((T->getDeducedType().isNull() && "expecting a dependent type!" ) ? static_cast<void> (0) : __assert_fail ("T->getDeducedType().isNull() && \"expecting a dependent type!\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 3261, __PRETTY_FUNCTION__)); | ||||
3262 | |||||
3263 | DiagnosticsEngine &Diags = Context.getDiags(); | ||||
3264 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, | ||||
3265 | "cannot mangle this 'auto' type yet"); | ||||
3266 | Diags.Report(Range.getBegin(), DiagID) | ||||
3267 | << Range; | ||||
3268 | } | ||||
3269 | |||||
3270 | void MicrosoftCXXNameMangler::mangleType( | ||||
3271 | const DeducedTemplateSpecializationType *T, Qualifiers, SourceRange Range) { | ||||
3272 | assert(T->getDeducedType().isNull() && "expecting a dependent type!")((T->getDeducedType().isNull() && "expecting a dependent type!" ) ? static_cast<void> (0) : __assert_fail ("T->getDeducedType().isNull() && \"expecting a dependent type!\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 3272, __PRETTY_FUNCTION__)); | ||||
3273 | |||||
3274 | DiagnosticsEngine &Diags = Context.getDiags(); | ||||
3275 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, | ||||
3276 | "cannot mangle this deduced class template specialization type yet"); | ||||
3277 | Diags.Report(Range.getBegin(), DiagID) | ||||
3278 | << Range; | ||||
3279 | } | ||||
3280 | |||||
3281 | void MicrosoftCXXNameMangler::mangleType(const AtomicType *T, Qualifiers, | ||||
3282 | SourceRange Range) { | ||||
3283 | QualType ValueType = T->getValueType(); | ||||
3284 | |||||
3285 | llvm::SmallString<64> TemplateMangling; | ||||
3286 | llvm::raw_svector_ostream Stream(TemplateMangling); | ||||
3287 | MicrosoftCXXNameMangler Extra(Context, Stream); | ||||
3288 | Stream << "?$"; | ||||
3289 | Extra.mangleSourceName("_Atomic"); | ||||
3290 | Extra.mangleType(ValueType, Range, QMM_Escape); | ||||
3291 | |||||
3292 | mangleArtificialTagType(TTK_Struct, TemplateMangling, {"__clang"}); | ||||
3293 | } | ||||
3294 | |||||
3295 | void MicrosoftCXXNameMangler::mangleType(const PipeType *T, Qualifiers, | ||||
3296 | SourceRange Range) { | ||||
3297 | QualType ElementType = T->getElementType(); | ||||
3298 | |||||
3299 | llvm::SmallString<64> TemplateMangling; | ||||
3300 | llvm::raw_svector_ostream Stream(TemplateMangling); | ||||
3301 | MicrosoftCXXNameMangler Extra(Context, Stream); | ||||
3302 | Stream << "?$"; | ||||
3303 | Extra.mangleSourceName("ocl_pipe"); | ||||
3304 | Extra.mangleType(ElementType, Range, QMM_Escape); | ||||
3305 | Extra.mangleIntegerLiteral(llvm::APSInt::get(T->isReadOnly())); | ||||
3306 | |||||
3307 | mangleArtificialTagType(TTK_Struct, TemplateMangling, {"__clang"}); | ||||
3308 | } | ||||
3309 | |||||
3310 | void MicrosoftMangleContextImpl::mangleCXXName(GlobalDecl GD, | ||||
3311 | raw_ostream &Out) { | ||||
3312 | const NamedDecl *D = cast<NamedDecl>(GD.getDecl()); | ||||
3313 | PrettyStackTraceDecl CrashInfo(D, SourceLocation(), | ||||
3314 | getASTContext().getSourceManager(), | ||||
3315 | "Mangling declaration"); | ||||
3316 | |||||
3317 | msvc_hashing_ostream MHO(Out); | ||||
3318 | |||||
3319 | if (auto *CD = dyn_cast<CXXConstructorDecl>(D)) { | ||||
3320 | auto Type = GD.getCtorType(); | ||||
3321 | MicrosoftCXXNameMangler mangler(*this, MHO, CD, Type); | ||||
3322 | return mangler.mangle(D); | ||||
3323 | } | ||||
3324 | |||||
3325 | if (auto *DD = dyn_cast<CXXDestructorDecl>(D)) { | ||||
3326 | auto Type = GD.getDtorType(); | ||||
3327 | MicrosoftCXXNameMangler mangler(*this, MHO, DD, Type); | ||||
3328 | return mangler.mangle(D); | ||||
3329 | } | ||||
3330 | |||||
3331 | MicrosoftCXXNameMangler Mangler(*this, MHO); | ||||
3332 | return Mangler.mangle(D); | ||||
3333 | } | ||||
3334 | |||||
3335 | void MicrosoftCXXNameMangler::mangleType(const ExtIntType *T, Qualifiers, | ||||
3336 | SourceRange Range) { | ||||
3337 | llvm::SmallString<64> TemplateMangling; | ||||
3338 | llvm::raw_svector_ostream Stream(TemplateMangling); | ||||
3339 | MicrosoftCXXNameMangler Extra(Context, Stream); | ||||
3340 | Stream << "?$"; | ||||
3341 | if (T->isUnsigned()) | ||||
3342 | Extra.mangleSourceName("_UExtInt"); | ||||
3343 | else | ||||
3344 | Extra.mangleSourceName("_ExtInt"); | ||||
3345 | Extra.mangleIntegerLiteral(llvm::APSInt::getUnsigned(T->getNumBits())); | ||||
3346 | |||||
3347 | mangleArtificialTagType(TTK_Struct, TemplateMangling, {"__clang"}); | ||||
3348 | } | ||||
3349 | |||||
3350 | void MicrosoftCXXNameMangler::mangleType(const DependentExtIntType *T, | ||||
3351 | Qualifiers, SourceRange Range) { | ||||
3352 | DiagnosticsEngine &Diags = Context.getDiags(); | ||||
3353 | unsigned DiagID = Diags.getCustomDiagID( | ||||
3354 | DiagnosticsEngine::Error, "cannot mangle this DependentExtInt type yet"); | ||||
3355 | Diags.Report(Range.getBegin(), DiagID) << Range; | ||||
3356 | } | ||||
3357 | |||||
3358 | // <this-adjustment> ::= <no-adjustment> | <static-adjustment> | | ||||
3359 | // <virtual-adjustment> | ||||
3360 | // <no-adjustment> ::= A # private near | ||||
3361 | // ::= B # private far | ||||
3362 | // ::= I # protected near | ||||
3363 | // ::= J # protected far | ||||
3364 | // ::= Q # public near | ||||
3365 | // ::= R # public far | ||||
3366 | // <static-adjustment> ::= G <static-offset> # private near | ||||
3367 | // ::= H <static-offset> # private far | ||||
3368 | // ::= O <static-offset> # protected near | ||||
3369 | // ::= P <static-offset> # protected far | ||||
3370 | // ::= W <static-offset> # public near | ||||
3371 | // ::= X <static-offset> # public far | ||||
3372 | // <virtual-adjustment> ::= $0 <virtual-shift> <static-offset> # private near | ||||
3373 | // ::= $1 <virtual-shift> <static-offset> # private far | ||||
3374 | // ::= $2 <virtual-shift> <static-offset> # protected near | ||||
3375 | // ::= $3 <virtual-shift> <static-offset> # protected far | ||||
3376 | // ::= $4 <virtual-shift> <static-offset> # public near | ||||
3377 | // ::= $5 <virtual-shift> <static-offset> # public far | ||||
3378 | // <virtual-shift> ::= <vtordisp-shift> | <vtordispex-shift> | ||||
3379 | // <vtordisp-shift> ::= <offset-to-vtordisp> | ||||
3380 | // <vtordispex-shift> ::= <offset-to-vbptr> <vbase-offset-offset> | ||||
3381 | // <offset-to-vtordisp> | ||||
3382 | static void mangleThunkThisAdjustment(AccessSpecifier AS, | ||||
3383 | const ThisAdjustment &Adjustment, | ||||
3384 | MicrosoftCXXNameMangler &Mangler, | ||||
3385 | raw_ostream &Out) { | ||||
3386 | if (!Adjustment.Virtual.isEmpty()) { | ||||
3387 | Out << '$'; | ||||
3388 | char AccessSpec; | ||||
3389 | switch (AS) { | ||||
3390 | case AS_none: | ||||
3391 | llvm_unreachable("Unsupported access specifier")::llvm::llvm_unreachable_internal("Unsupported access specifier" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 3391); | ||||
3392 | case AS_private: | ||||
3393 | AccessSpec = '0'; | ||||
3394 | break; | ||||
3395 | case AS_protected: | ||||
3396 | AccessSpec = '2'; | ||||
3397 | break; | ||||
3398 | case AS_public: | ||||
3399 | AccessSpec = '4'; | ||||
3400 | } | ||||
3401 | if (Adjustment.Virtual.Microsoft.VBPtrOffset) { | ||||
3402 | Out << 'R' << AccessSpec; | ||||
3403 | Mangler.mangleNumber( | ||||
3404 | static_cast<uint32_t>(Adjustment.Virtual.Microsoft.VBPtrOffset)); | ||||
3405 | Mangler.mangleNumber( | ||||
3406 | static_cast<uint32_t>(Adjustment.Virtual.Microsoft.VBOffsetOffset)); | ||||
3407 | Mangler.mangleNumber( | ||||
3408 | static_cast<uint32_t>(Adjustment.Virtual.Microsoft.VtordispOffset)); | ||||
3409 | Mangler.mangleNumber(static_cast<uint32_t>(Adjustment.NonVirtual)); | ||||
3410 | } else { | ||||
3411 | Out << AccessSpec; | ||||
3412 | Mangler.mangleNumber( | ||||
3413 | static_cast<uint32_t>(Adjustment.Virtual.Microsoft.VtordispOffset)); | ||||
3414 | Mangler.mangleNumber(-static_cast<uint32_t>(Adjustment.NonVirtual)); | ||||
3415 | } | ||||
3416 | } else if (Adjustment.NonVirtual != 0) { | ||||
3417 | switch (AS) { | ||||
3418 | case AS_none: | ||||
3419 | llvm_unreachable("Unsupported access specifier")::llvm::llvm_unreachable_internal("Unsupported access specifier" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 3419); | ||||
3420 | case AS_private: | ||||
3421 | Out << 'G'; | ||||
3422 | break; | ||||
3423 | case AS_protected: | ||||
3424 | Out << 'O'; | ||||
3425 | break; | ||||
3426 | case AS_public: | ||||
3427 | Out << 'W'; | ||||
3428 | } | ||||
3429 | Mangler.mangleNumber(-static_cast<uint32_t>(Adjustment.NonVirtual)); | ||||
3430 | } else { | ||||
3431 | switch (AS) { | ||||
3432 | case AS_none: | ||||
3433 | llvm_unreachable("Unsupported access specifier")::llvm::llvm_unreachable_internal("Unsupported access specifier" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 3433); | ||||
3434 | case AS_private: | ||||
3435 | Out << 'A'; | ||||
3436 | break; | ||||
3437 | case AS_protected: | ||||
3438 | Out << 'I'; | ||||
3439 | break; | ||||
3440 | case AS_public: | ||||
3441 | Out << 'Q'; | ||||
3442 | } | ||||
3443 | } | ||||
3444 | } | ||||
3445 | |||||
3446 | void MicrosoftMangleContextImpl::mangleVirtualMemPtrThunk( | ||||
3447 | const CXXMethodDecl *MD, const MethodVFTableLocation &ML, | ||||
3448 | raw_ostream &Out) { | ||||
3449 | msvc_hashing_ostream MHO(Out); | ||||
3450 | MicrosoftCXXNameMangler Mangler(*this, MHO); | ||||
3451 | Mangler.getStream() << '?'; | ||||
3452 | Mangler.mangleVirtualMemPtrThunk(MD, ML); | ||||
3453 | } | ||||
3454 | |||||
3455 | void MicrosoftMangleContextImpl::mangleThunk(const CXXMethodDecl *MD, | ||||
3456 | const ThunkInfo &Thunk, | ||||
3457 | raw_ostream &Out) { | ||||
3458 | msvc_hashing_ostream MHO(Out); | ||||
3459 | MicrosoftCXXNameMangler Mangler(*this, MHO); | ||||
3460 | Mangler.getStream() << '?'; | ||||
3461 | Mangler.mangleName(MD); | ||||
3462 | |||||
3463 | // Usually the thunk uses the access specifier of the new method, but if this | ||||
3464 | // is a covariant return thunk, then MSVC always uses the public access | ||||
3465 | // specifier, and we do the same. | ||||
3466 | AccessSpecifier AS = Thunk.Return.isEmpty() ? MD->getAccess() : AS_public; | ||||
3467 | mangleThunkThisAdjustment(AS, Thunk.This, Mangler, MHO); | ||||
3468 | |||||
3469 | if (!Thunk.Return.isEmpty()) | ||||
3470 | assert(Thunk.Method != nullptr &&((Thunk.Method != nullptr && "Thunk info should hold the overridee decl" ) ? static_cast<void> (0) : __assert_fail ("Thunk.Method != nullptr && \"Thunk info should hold the overridee decl\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 3471, __PRETTY_FUNCTION__)) | ||||
3471 | "Thunk info should hold the overridee decl")((Thunk.Method != nullptr && "Thunk info should hold the overridee decl" ) ? static_cast<void> (0) : __assert_fail ("Thunk.Method != nullptr && \"Thunk info should hold the overridee decl\"" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 3471, __PRETTY_FUNCTION__)); | ||||
3472 | |||||
3473 | const CXXMethodDecl *DeclForFPT = Thunk.Method ? Thunk.Method : MD; | ||||
3474 | Mangler.mangleFunctionType( | ||||
3475 | DeclForFPT->getType()->castAs<FunctionProtoType>(), MD); | ||||
3476 | } | ||||
3477 | |||||
3478 | void MicrosoftMangleContextImpl::mangleCXXDtorThunk( | ||||
3479 | const CXXDestructorDecl *DD, CXXDtorType Type, | ||||
3480 | const ThisAdjustment &Adjustment, raw_ostream &Out) { | ||||
3481 | // FIXME: Actually, the dtor thunk should be emitted for vector deleting | ||||
3482 | // dtors rather than scalar deleting dtors. Just use the vector deleting dtor | ||||
3483 | // mangling manually until we support both deleting dtor types. | ||||
3484 | assert(Type == Dtor_Deleting)((Type == Dtor_Deleting) ? static_cast<void> (0) : __assert_fail ("Type == Dtor_Deleting", "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 3484, __PRETTY_FUNCTION__)); | ||||
| |||||
3485 | msvc_hashing_ostream MHO(Out); | ||||
3486 | MicrosoftCXXNameMangler Mangler(*this, MHO, DD, Type); | ||||
3487 | Mangler.getStream() << "??_E"; | ||||
3488 | Mangler.mangleName(DD->getParent()); | ||||
3489 | mangleThunkThisAdjustment(DD->getAccess(), Adjustment, Mangler, MHO); | ||||
3490 | Mangler.mangleFunctionType(DD->getType()->castAs<FunctionProtoType>(), DD); | ||||
3491 | } | ||||
3492 | |||||
3493 | void MicrosoftMangleContextImpl::mangleCXXVFTable( | ||||
3494 | const CXXRecordDecl *Derived, ArrayRef<const CXXRecordDecl *> BasePath, | ||||
3495 | raw_ostream &Out) { | ||||
3496 | // <mangled-name> ::= ?_7 <class-name> <storage-class> | ||||
3497 | // <cvr-qualifiers> [<name>] @ | ||||
3498 | // NOTE: <cvr-qualifiers> here is always 'B' (const). <storage-class> | ||||
3499 | // is always '6' for vftables. | ||||
3500 | msvc_hashing_ostream MHO(Out); | ||||
3501 | MicrosoftCXXNameMangler Mangler(*this, MHO); | ||||
3502 | if (Derived->hasAttr<DLLImportAttr>()) | ||||
3503 | Mangler.getStream() << "??_S"; | ||||
3504 | else | ||||
3505 | Mangler.getStream() << "??_7"; | ||||
3506 | Mangler.mangleName(Derived); | ||||
3507 | Mangler.getStream() << "6B"; // '6' for vftable, 'B' for const. | ||||
3508 | for (const CXXRecordDecl *RD : BasePath) | ||||
3509 | Mangler.mangleName(RD); | ||||
3510 | Mangler.getStream() << '@'; | ||||
3511 | } | ||||
3512 | |||||
3513 | void MicrosoftMangleContextImpl::mangleCXXVBTable( | ||||
3514 | const CXXRecordDecl *Derived, ArrayRef<const CXXRecordDecl *> BasePath, | ||||
3515 | raw_ostream &Out) { | ||||
3516 | // <mangled-name> ::= ?_8 <class-name> <storage-class> | ||||
3517 | // <cvr-qualifiers> [<name>] @ | ||||
3518 | // NOTE: <cvr-qualifiers> here is always 'B' (const). <storage-class> | ||||
3519 | // is always '7' for vbtables. | ||||
3520 | msvc_hashing_ostream MHO(Out); | ||||
3521 | MicrosoftCXXNameMangler Mangler(*this, MHO); | ||||
3522 | Mangler.getStream() << "??_8"; | ||||
3523 | Mangler.mangleName(Derived); | ||||
3524 | Mangler.getStream() << "7B"; // '7' for vbtable, 'B' for const. | ||||
3525 | for (const CXXRecordDecl *RD : BasePath) | ||||
3526 | Mangler.mangleName(RD); | ||||
3527 | Mangler.getStream() << '@'; | ||||
3528 | } | ||||
3529 | |||||
3530 | void MicrosoftMangleContextImpl::mangleCXXRTTI(QualType T, raw_ostream &Out) { | ||||
3531 | msvc_hashing_ostream MHO(Out); | ||||
3532 | MicrosoftCXXNameMangler Mangler(*this, MHO); | ||||
3533 | Mangler.getStream() << "??_R0"; | ||||
3534 | Mangler.mangleType(T, SourceRange(), MicrosoftCXXNameMangler::QMM_Result); | ||||
3535 | Mangler.getStream() << "@8"; | ||||
3536 | } | ||||
3537 | |||||
3538 | void MicrosoftMangleContextImpl::mangleCXXRTTIName(QualType T, | ||||
3539 | raw_ostream &Out) { | ||||
3540 | MicrosoftCXXNameMangler Mangler(*this, Out); | ||||
3541 | Mangler.getStream() << '.'; | ||||
3542 | Mangler.mangleType(T, SourceRange(), MicrosoftCXXNameMangler::QMM_Result); | ||||
3543 | } | ||||
3544 | |||||
3545 | void MicrosoftMangleContextImpl::mangleCXXVirtualDisplacementMap( | ||||
3546 | const CXXRecordDecl *SrcRD, const CXXRecordDecl *DstRD, raw_ostream &Out) { | ||||
3547 | msvc_hashing_ostream MHO(Out); | ||||
3548 | MicrosoftCXXNameMangler Mangler(*this, MHO); | ||||
3549 | Mangler.getStream() << "??_K"; | ||||
3550 | Mangler.mangleName(SrcRD); | ||||
3551 | Mangler.getStream() << "$C"; | ||||
3552 | Mangler.mangleName(DstRD); | ||||
3553 | } | ||||
3554 | |||||
3555 | void MicrosoftMangleContextImpl::mangleCXXThrowInfo(QualType T, bool IsConst, | ||||
3556 | bool IsVolatile, | ||||
3557 | bool IsUnaligned, | ||||
3558 | uint32_t NumEntries, | ||||
3559 | raw_ostream &Out) { | ||||
3560 | msvc_hashing_ostream MHO(Out); | ||||
3561 | MicrosoftCXXNameMangler Mangler(*this, MHO); | ||||
3562 | Mangler.getStream() << "_TI"; | ||||
3563 | if (IsConst) | ||||
3564 | Mangler.getStream() << 'C'; | ||||
3565 | if (IsVolatile) | ||||
3566 | Mangler.getStream() << 'V'; | ||||
3567 | if (IsUnaligned) | ||||
3568 | Mangler.getStream() << 'U'; | ||||
3569 | Mangler.getStream() << NumEntries; | ||||
3570 | Mangler.mangleType(T, SourceRange(), MicrosoftCXXNameMangler::QMM_Result); | ||||
3571 | } | ||||
3572 | |||||
3573 | void MicrosoftMangleContextImpl::mangleCXXCatchableTypeArray( | ||||
3574 | QualType T, uint32_t NumEntries, raw_ostream &Out) { | ||||
3575 | msvc_hashing_ostream MHO(Out); | ||||
3576 | MicrosoftCXXNameMangler Mangler(*this, MHO); | ||||
3577 | Mangler.getStream() << "_CTA"; | ||||
3578 | Mangler.getStream() << NumEntries; | ||||
3579 | Mangler.mangleType(T, SourceRange(), MicrosoftCXXNameMangler::QMM_Result); | ||||
3580 | } | ||||
3581 | |||||
3582 | void MicrosoftMangleContextImpl::mangleCXXCatchableType( | ||||
3583 | QualType T, const CXXConstructorDecl *CD, CXXCtorType CT, uint32_t Size, | ||||
3584 | uint32_t NVOffset, int32_t VBPtrOffset, uint32_t VBIndex, | ||||
3585 | raw_ostream &Out) { | ||||
3586 | MicrosoftCXXNameMangler Mangler(*this, Out); | ||||
3587 | Mangler.getStream() << "_CT"; | ||||
3588 | |||||
3589 | llvm::SmallString<64> RTTIMangling; | ||||
3590 | { | ||||
3591 | llvm::raw_svector_ostream Stream(RTTIMangling); | ||||
3592 | msvc_hashing_ostream MHO(Stream); | ||||
3593 | mangleCXXRTTI(T, MHO); | ||||
3594 | } | ||||
3595 | Mangler.getStream() << RTTIMangling; | ||||
3596 | |||||
3597 | // VS2015 and VS2017.1 omit the copy-constructor in the mangled name but | ||||
3598 | // both older and newer versions include it. | ||||
3599 | // FIXME: It is known that the Ctor is present in 2013, and in 2017.7 | ||||
3600 | // (_MSC_VER 1914) and newer, and that it's omitted in 2015 and 2017.4 | ||||
3601 | // (_MSC_VER 1911), but it's unknown when exactly it reappeared (1914? | ||||
3602 | // Or 1912, 1913 aleady?). | ||||
3603 | bool OmitCopyCtor = getASTContext().getLangOpts().isCompatibleWithMSVC( | ||||
3604 | LangOptions::MSVC2015) && | ||||
3605 | !getASTContext().getLangOpts().isCompatibleWithMSVC( | ||||
3606 | LangOptions::MSVC2017_7); | ||||
3607 | llvm::SmallString<64> CopyCtorMangling; | ||||
3608 | if (!OmitCopyCtor && CD) { | ||||
3609 | llvm::raw_svector_ostream Stream(CopyCtorMangling); | ||||
3610 | msvc_hashing_ostream MHO(Stream); | ||||
3611 | mangleCXXName(GlobalDecl(CD, CT), MHO); | ||||
3612 | } | ||||
3613 | Mangler.getStream() << CopyCtorMangling; | ||||
3614 | |||||
3615 | Mangler.getStream() << Size; | ||||
3616 | if (VBPtrOffset == -1) { | ||||
3617 | if (NVOffset) { | ||||
3618 | Mangler.getStream() << NVOffset; | ||||
3619 | } | ||||
3620 | } else { | ||||
3621 | Mangler.getStream() << NVOffset; | ||||
3622 | Mangler.getStream() << VBPtrOffset; | ||||
3623 | Mangler.getStream() << VBIndex; | ||||
3624 | } | ||||
3625 | } | ||||
3626 | |||||
3627 | void MicrosoftMangleContextImpl::mangleCXXRTTIBaseClassDescriptor( | ||||
3628 | const CXXRecordDecl *Derived, uint32_t NVOffset, int32_t VBPtrOffset, | ||||
3629 | uint32_t VBTableOffset, uint32_t Flags, raw_ostream &Out) { | ||||
3630 | msvc_hashing_ostream MHO(Out); | ||||
3631 | MicrosoftCXXNameMangler Mangler(*this, MHO); | ||||
3632 | Mangler.getStream() << "??_R1"; | ||||
3633 | Mangler.mangleNumber(NVOffset); | ||||
3634 | Mangler.mangleNumber(VBPtrOffset); | ||||
3635 | Mangler.mangleNumber(VBTableOffset); | ||||
3636 | Mangler.mangleNumber(Flags); | ||||
3637 | Mangler.mangleName(Derived); | ||||
3638 | Mangler.getStream() << "8"; | ||||
3639 | } | ||||
3640 | |||||
3641 | void MicrosoftMangleContextImpl::mangleCXXRTTIBaseClassArray( | ||||
3642 | const CXXRecordDecl *Derived, raw_ostream &Out) { | ||||
3643 | msvc_hashing_ostream MHO(Out); | ||||
3644 | MicrosoftCXXNameMangler Mangler(*this, MHO); | ||||
3645 | Mangler.getStream() << "??_R2"; | ||||
3646 | Mangler.mangleName(Derived); | ||||
3647 | Mangler.getStream() << "8"; | ||||
3648 | } | ||||
3649 | |||||
3650 | void MicrosoftMangleContextImpl::mangleCXXRTTIClassHierarchyDescriptor( | ||||
3651 | const CXXRecordDecl *Derived, raw_ostream &Out) { | ||||
3652 | msvc_hashing_ostream MHO(Out); | ||||
3653 | MicrosoftCXXNameMangler Mangler(*this, MHO); | ||||
3654 | Mangler.getStream() << "??_R3"; | ||||
3655 | Mangler.mangleName(Derived); | ||||
3656 | Mangler.getStream() << "8"; | ||||
3657 | } | ||||
3658 | |||||
3659 | void MicrosoftMangleContextImpl::mangleCXXRTTICompleteObjectLocator( | ||||
3660 | const CXXRecordDecl *Derived, ArrayRef<const CXXRecordDecl *> BasePath, | ||||
3661 | raw_ostream &Out) { | ||||
3662 | // <mangled-name> ::= ?_R4 <class-name> <storage-class> | ||||
3663 | // <cvr-qualifiers> [<name>] @ | ||||
3664 | // NOTE: <cvr-qualifiers> here is always 'B' (const). <storage-class> | ||||
3665 | // is always '6' for vftables. | ||||
3666 | llvm::SmallString<64> VFTableMangling; | ||||
3667 | llvm::raw_svector_ostream Stream(VFTableMangling); | ||||
3668 | mangleCXXVFTable(Derived, BasePath, Stream); | ||||
3669 | |||||
3670 | if (VFTableMangling.startswith("??@")) { | ||||
3671 | assert(VFTableMangling.endswith("@"))((VFTableMangling.endswith("@")) ? static_cast<void> (0 ) : __assert_fail ("VFTableMangling.endswith(\"@\")", "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 3671, __PRETTY_FUNCTION__)); | ||||
3672 | Out << VFTableMangling << "??_R4@"; | ||||
3673 | return; | ||||
3674 | } | ||||
3675 | |||||
3676 | assert(VFTableMangling.startswith("??_7") ||((VFTableMangling.startswith("??_7") || VFTableMangling.startswith ("??_S")) ? static_cast<void> (0) : __assert_fail ("VFTableMangling.startswith(\"??_7\") || VFTableMangling.startswith(\"??_S\")" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 3677, __PRETTY_FUNCTION__)) | ||||
3677 | VFTableMangling.startswith("??_S"))((VFTableMangling.startswith("??_7") || VFTableMangling.startswith ("??_S")) ? static_cast<void> (0) : __assert_fail ("VFTableMangling.startswith(\"??_7\") || VFTableMangling.startswith(\"??_S\")" , "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/lib/AST/MicrosoftMangle.cpp" , 3677, __PRETTY_FUNCTION__)); | ||||
3678 | |||||
3679 | Out << "??_R4" << StringRef(VFTableMangling).drop_front(4); | ||||
3680 | } | ||||
3681 | |||||
3682 | void MicrosoftMangleContextImpl::mangleSEHFilterExpression( | ||||
3683 | const NamedDecl *EnclosingDecl, raw_ostream &Out) { | ||||
3684 | msvc_hashing_ostream MHO(Out); | ||||
3685 | MicrosoftCXXNameMangler Mangler(*this, MHO); | ||||
3686 | // The function body is in the same comdat as the function with the handler, | ||||
3687 | // so the numbering here doesn't have to be the same across TUs. | ||||
3688 | // | ||||
3689 | // <mangled-name> ::= ?filt$ <filter-number> @0 | ||||
3690 | Mangler.getStream() << "?filt$" << SEHFilterIds[EnclosingDecl]++ << "@0@"; | ||||
3691 | Mangler.mangleName(EnclosingDecl); | ||||
3692 | } | ||||
3693 | |||||
3694 | void MicrosoftMangleContextImpl::mangleSEHFinallyBlock( | ||||
3695 | const NamedDecl *EnclosingDecl, raw_ostream &Out) { | ||||
3696 | msvc_hashing_ostream MHO(Out); | ||||
3697 | MicrosoftCXXNameMangler Mangler(*this, MHO); | ||||
3698 | // The function body is in the same comdat as the function with the handler, | ||||
3699 | // so the numbering here doesn't have to be the same across TUs. | ||||
3700 | // | ||||
3701 | // <mangled-name> ::= ?fin$ <filter-number> @0 | ||||
3702 | Mangler.getStream() << "?fin$" << SEHFinallyIds[EnclosingDecl]++ << "@0@"; | ||||
3703 | Mangler.mangleName(EnclosingDecl); | ||||
3704 | } | ||||
3705 | |||||
3706 | void MicrosoftMangleContextImpl::mangleTypeName(QualType T, raw_ostream &Out) { | ||||
3707 | // This is just a made up unique string for the purposes of tbaa. undname | ||||
3708 | // does *not* know how to demangle it. | ||||
3709 | MicrosoftCXXNameMangler Mangler(*this, Out); | ||||
3710 | Mangler.getStream() << '?'; | ||||
3711 | Mangler.mangleType(T, SourceRange()); | ||||
3712 | } | ||||
3713 | |||||
3714 | void MicrosoftMangleContextImpl::mangleReferenceTemporary( | ||||
3715 | const VarDecl *VD, unsigned ManglingNumber, raw_ostream &Out) { | ||||
3716 | msvc_hashing_ostream MHO(Out); | ||||
3717 | MicrosoftCXXNameMangler Mangler(*this, MHO); | ||||
3718 | |||||
3719 | Mangler.getStream() << "?$RT" << ManglingNumber << '@'; | ||||
3720 | Mangler.mangle(VD, ""); | ||||
3721 | } | ||||
3722 | |||||
3723 | void MicrosoftMangleContextImpl::mangleThreadSafeStaticGuardVariable( | ||||
3724 | const VarDecl *VD, unsigned GuardNum, raw_ostream &Out) { | ||||
3725 | msvc_hashing_ostream MHO(Out); | ||||
3726 | MicrosoftCXXNameMangler Mangler(*this, MHO); | ||||
3727 | |||||
3728 | Mangler.getStream() << "?$TSS" << GuardNum << '@'; | ||||
3729 | Mangler.mangleNestedName(VD); | ||||
3730 | Mangler.getStream() << "@4HA"; | ||||
3731 | } | ||||
3732 | |||||
3733 | void MicrosoftMangleContextImpl::mangleStaticGuardVariable(const VarDecl *VD, | ||||
3734 | raw_ostream &Out) { | ||||
3735 | // <guard-name> ::= ?_B <postfix> @5 <scope-depth> | ||||
3736 | // ::= ?__J <postfix> @5 <scope-depth> | ||||
3737 | // ::= ?$S <guard-num> @ <postfix> @4IA | ||||
3738 | |||||
3739 | // The first mangling is what MSVC uses to guard static locals in inline | ||||
3740 | // functions. It uses a different mangling in external functions to support | ||||
3741 | // guarding more than 32 variables. MSVC rejects inline functions with more | ||||
3742 | // than 32 static locals. We don't fully implement the second mangling | ||||
3743 | // because those guards are not externally visible, and instead use LLVM's | ||||
3744 | // default renaming when creating a new guard variable. | ||||
3745 | msvc_hashing_ostream MHO(Out); | ||||
3746 | MicrosoftCXXNameMangler Mangler(*this, MHO); | ||||
3747 | |||||
3748 | bool Visible = VD->isExternallyVisible(); | ||||
3749 | if (Visible) { | ||||
3750 | Mangler.getStream() << (VD->getTLSKind() ? "??__J" : "??_B"); | ||||
3751 | } else { | ||||
3752 | Mangler.getStream() << "?$S1@"; | ||||
3753 | } | ||||
3754 | unsigned ScopeDepth = 0; | ||||
3755 | if (Visible && !getNextDiscriminator(VD, ScopeDepth)) | ||||
3756 | // If we do not have a discriminator and are emitting a guard variable for | ||||
3757 | // use at global scope, then mangling the nested name will not be enough to | ||||
3758 | // remove ambiguities. | ||||
3759 | Mangler.mangle(VD, ""); | ||||
3760 | else | ||||
3761 | Mangler.mangleNestedName(VD); | ||||
3762 | Mangler.getStream() << (Visible ? "@5" : "@4IA"); | ||||
3763 | if (ScopeDepth) | ||||
3764 | Mangler.mangleNumber(ScopeDepth); | ||||
3765 | } | ||||
3766 | |||||
3767 | void MicrosoftMangleContextImpl::mangleInitFiniStub(const VarDecl *D, | ||||
3768 | char CharCode, | ||||
3769 | raw_ostream &Out) { | ||||
3770 | msvc_hashing_ostream MHO(Out); | ||||
3771 | MicrosoftCXXNameMangler Mangler(*this, MHO); | ||||
3772 | Mangler.getStream() << "??__" << CharCode; | ||||
3773 | if (D->isStaticDataMember()) { | ||||
3774 | Mangler.getStream() << '?'; | ||||
3775 | Mangler.mangleName(D); | ||||
3776 | Mangler.mangleVariableEncoding(D); | ||||
3777 | Mangler.getStream() << "@@"; | ||||
3778 | } else { | ||||
3779 | Mangler.mangleName(D); | ||||
3780 | } | ||||
3781 | // This is the function class mangling. These stubs are global, non-variadic, | ||||
3782 | // cdecl functions that return void and take no args. | ||||
3783 | Mangler.getStream() << "YAXXZ"; | ||||
3784 | } | ||||
3785 | |||||
3786 | void MicrosoftMangleContextImpl::mangleDynamicInitializer(const VarDecl *D, | ||||
3787 | raw_ostream &Out) { | ||||
3788 | // <initializer-name> ::= ?__E <name> YAXXZ | ||||
3789 | mangleInitFiniStub(D, 'E', Out); | ||||
3790 | } | ||||
3791 | |||||
3792 | void | ||||
3793 | MicrosoftMangleContextImpl::mangleDynamicAtExitDestructor(const VarDecl *D, | ||||
3794 | raw_ostream &Out) { | ||||
3795 | // <destructor-name> ::= ?__F <name> YAXXZ | ||||
3796 | mangleInitFiniStub(D, 'F', Out); | ||||
3797 | } | ||||
3798 | |||||
3799 | void MicrosoftMangleContextImpl::mangleStringLiteral(const StringLiteral *SL, | ||||
3800 | raw_ostream &Out) { | ||||
3801 | // <char-type> ::= 0 # char, char16_t, char32_t | ||||
3802 | // # (little endian char data in mangling) | ||||
3803 | // ::= 1 # wchar_t (big endian char data in mangling) | ||||
3804 | // | ||||
3805 | // <literal-length> ::= <non-negative integer> # the length of the literal | ||||
3806 | // | ||||
3807 | // <encoded-crc> ::= <hex digit>+ @ # crc of the literal including | ||||
3808 | // # trailing null bytes | ||||
3809 | // | ||||
3810 | // <encoded-string> ::= <simple character> # uninteresting character | ||||
3811 | // ::= '?$' <hex digit> <hex digit> # these two nibbles | ||||
3812 | // # encode the byte for the | ||||
3813 | // # character | ||||
3814 | // ::= '?' [a-z] # \xe1 - \xfa | ||||
3815 | // ::= '?' [A-Z] # \xc1 - \xda | ||||
3816 | // ::= '?' [0-9] # [,/\:. \n\t'-] | ||||
3817 | // | ||||
3818 | // <literal> ::= '??_C@_' <char-type> <literal-length> <encoded-crc> | ||||
3819 | // <encoded-string> '@' | ||||
3820 | MicrosoftCXXNameMangler Mangler(*this, Out); | ||||
3821 | Mangler.getStream() << "??_C@_"; | ||||
3822 | |||||
3823 | // The actual string length might be different from that of the string literal | ||||
3824 | // in cases like: | ||||
3825 | // char foo[3] = "foobar"; | ||||
3826 | // char bar[42] = "foobar"; | ||||
3827 | // Where it is truncated or zero-padded to fit the array. This is the length | ||||
3828 | // used for mangling, and any trailing null-bytes also need to be mangled. | ||||
3829 | unsigned StringLength = getASTContext() | ||||
3830 | .getAsConstantArrayType(SL->getType()) | ||||
3831 | ->getSize() | ||||
3832 | .getZExtValue(); | ||||
3833 | unsigned StringByteLength = StringLength * SL->getCharByteWidth(); | ||||
3834 | |||||
3835 | // <char-type>: The "kind" of string literal is encoded into the mangled name. | ||||
3836 | if (SL->isWide()) | ||||
3837 | Mangler.getStream() << '1'; | ||||
3838 | else | ||||
3839 | Mangler.getStream() << '0'; | ||||
3840 | |||||
3841 | // <literal-length>: The next part of the mangled name consists of the length | ||||
3842 | // of the string in bytes. | ||||
3843 | Mangler.mangleNumber(StringByteLength); | ||||
3844 | |||||
3845 | auto GetLittleEndianByte = [&SL](unsigned Index) { | ||||
3846 | unsigned CharByteWidth = SL->getCharByteWidth(); | ||||
3847 | if (Index / CharByteWidth >= SL->getLength()) | ||||
3848 | return static_cast<char>(0); | ||||
3849 | uint32_t CodeUnit = SL->getCodeUnit(Index / CharByteWidth); | ||||
3850 | unsigned OffsetInCodeUnit = Index % CharByteWidth; | ||||
3851 | return static_cast<char>((CodeUnit >> (8 * OffsetInCodeUnit)) & 0xff); | ||||
3852 | }; | ||||
3853 | |||||
3854 | auto GetBigEndianByte = [&SL](unsigned Index) { | ||||
3855 | unsigned CharByteWidth = SL->getCharByteWidth(); | ||||
3856 | if (Index / CharByteWidth >= SL->getLength()) | ||||
3857 | return static_cast<char>(0); | ||||
3858 | uint32_t CodeUnit = SL->getCodeUnit(Index / CharByteWidth); | ||||
3859 | unsigned OffsetInCodeUnit = (CharByteWidth - 1) - (Index % CharByteWidth); | ||||
3860 | return static_cast<char>((CodeUnit >> (8 * OffsetInCodeUnit)) & 0xff); | ||||
3861 | }; | ||||
3862 | |||||
3863 | // CRC all the bytes of the StringLiteral. | ||||
3864 | llvm::JamCRC JC; | ||||
3865 | for (unsigned I = 0, E = StringByteLength; I != E; ++I) | ||||
3866 | JC.update(GetLittleEndianByte(I)); | ||||
3867 | |||||
3868 | // <encoded-crc>: The CRC is encoded utilizing the standard number mangling | ||||
3869 | // scheme. | ||||
3870 | Mangler.mangleNumber(JC.getCRC()); | ||||
3871 | |||||
3872 | // <encoded-string>: The mangled name also contains the first 32 bytes | ||||
3873 | // (including null-terminator bytes) of the encoded StringLiteral. | ||||
3874 | // Each character is encoded by splitting them into bytes and then encoding | ||||
3875 | // the constituent bytes. | ||||
3876 | auto MangleByte = [&Mangler](char Byte) { | ||||
3877 | // There are five different manglings for characters: | ||||
3878 | // - [a-zA-Z0-9_$]: A one-to-one mapping. | ||||
3879 | // - ?[a-z]: The range from \xe1 to \xfa. | ||||
3880 | // - ?[A-Z]: The range from \xc1 to \xda. | ||||
3881 | // - ?[0-9]: The set of [,/\:. \n\t'-]. | ||||
3882 | // - ?$XX: A fallback which maps nibbles. | ||||
3883 | if (isIdentifierBody(Byte, /*AllowDollar=*/true)) { | ||||
3884 | Mangler.getStream() << Byte; | ||||
3885 | } else if (isLetter(Byte & 0x7f)) { | ||||
3886 | Mangler.getStream() << '?' << static_cast<char>(Byte & 0x7f); | ||||
3887 | } else { | ||||
3888 | const char SpecialChars[] = {',', '/', '\\', ':', '.', | ||||
3889 | ' ', '\n', '\t', '\'', '-'}; | ||||
3890 | const char *Pos = llvm::find(SpecialChars, Byte); | ||||
3891 | if (Pos != std::end(SpecialChars)) { | ||||
3892 | Mangler.getStream() << '?' << (Pos - std::begin(SpecialChars)); | ||||
3893 | } else { | ||||
3894 | Mangler.getStream() << "?$"; | ||||
3895 | Mangler.getStream() << static_cast<char>('A' + ((Byte >> 4) & 0xf)); | ||||
3896 | Mangler.getStream() << static_cast<char>('A' + (Byte & 0xf)); | ||||
3897 | } | ||||
3898 | } | ||||
3899 | }; | ||||
3900 | |||||
3901 | // Enforce our 32 bytes max, except wchar_t which gets 32 chars instead. | ||||
3902 | unsigned MaxBytesToMangle = SL->isWide() ? 64U : 32U; | ||||
3903 | unsigned NumBytesToMangle = std::min(MaxBytesToMangle, StringByteLength); | ||||
3904 | for (unsigned I = 0; I != NumBytesToMangle; ++I) { | ||||
3905 | if (SL->isWide()) | ||||
3906 | MangleByte(GetBigEndianByte(I)); | ||||
3907 | else | ||||
3908 | MangleByte(GetLittleEndianByte(I)); | ||||
3909 | } | ||||
3910 | |||||
3911 | Mangler.getStream() << '@'; | ||||
3912 | } | ||||
3913 | |||||
3914 | MicrosoftMangleContext * | ||||
3915 | MicrosoftMangleContext::create(ASTContext &Context, DiagnosticsEngine &Diags) { | ||||
3916 | return new MicrosoftMangleContextImpl(Context, Diags); | ||||
3917 | } |
1 | //===- LangOptions.h - C Language Family Language Options -------*- C++ -*-===// |
2 | // |
3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
4 | // See https://llvm.org/LICENSE.txt for license information. |
5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
6 | // |
7 | //===----------------------------------------------------------------------===// |
8 | // |
9 | /// \file |
10 | /// Defines the clang::LangOptions interface. |
11 | // |
12 | //===----------------------------------------------------------------------===// |
13 | |
14 | #ifndef LLVM_CLANG_BASIC_LANGOPTIONS_H |
15 | #define LLVM_CLANG_BASIC_LANGOPTIONS_H |
16 | |
17 | #include "clang/Basic/CommentOptions.h" |
18 | #include "clang/Basic/LLVM.h" |
19 | #include "clang/Basic/LangStandard.h" |
20 | #include "clang/Basic/ObjCRuntime.h" |
21 | #include "clang/Basic/Sanitizers.h" |
22 | #include "clang/Basic/Visibility.h" |
23 | #include "llvm/ADT/FloatingPointMode.h" |
24 | #include "llvm/ADT/StringRef.h" |
25 | #include "llvm/ADT/Triple.h" |
26 | #include "llvm/MC/MCTargetOptions.h" |
27 | #include <string> |
28 | #include <vector> |
29 | |
30 | namespace clang { |
31 | |
32 | /// Bitfields of LangOptions, split out from LangOptions in order to ensure that |
33 | /// this large collection of bitfields is a trivial class type. |
34 | class LangOptionsBase { |
35 | friend class CompilerInvocation; |
36 | |
37 | public: |
38 | // Define simple language options (with no accessors). |
39 | #define LANGOPT(Name, Bits, Default, Description) unsigned Name : Bits; |
40 | #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) |
41 | #include "clang/Basic/LangOptions.def" |
42 | |
43 | protected: |
44 | // Define language options of enumeration type. These are private, and will |
45 | // have accessors (below). |
46 | #define LANGOPT(Name, Bits, Default, Description) |
47 | #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ |
48 | unsigned Name : Bits; |
49 | #include "clang/Basic/LangOptions.def" |
50 | }; |
51 | |
52 | /// In the Microsoft ABI, this controls the placement of virtual displacement |
53 | /// members used to implement virtual inheritance. |
54 | enum class MSVtorDispMode { Never, ForVBaseOverride, ForVFTable }; |
55 | |
56 | /// Keeps track of the various options that can be |
57 | /// enabled, which controls the dialect of C or C++ that is accepted. |
58 | class LangOptions : public LangOptionsBase { |
59 | public: |
60 | using Visibility = clang::Visibility; |
61 | using RoundingMode = llvm::RoundingMode; |
62 | |
63 | enum GCMode { NonGC, GCOnly, HybridGC }; |
64 | enum StackProtectorMode { SSPOff, SSPOn, SSPStrong, SSPReq }; |
65 | |
66 | // Automatic variables live on the stack, and when trivial they're usually |
67 | // uninitialized because it's undefined behavior to use them without |
68 | // initializing them. |
69 | enum class TrivialAutoVarInitKind { Uninitialized, Zero, Pattern }; |
70 | |
71 | enum SignedOverflowBehaviorTy { |
72 | // Default C standard behavior. |
73 | SOB_Undefined, |
74 | |
75 | // -fwrapv |
76 | SOB_Defined, |
77 | |
78 | // -ftrapv |
79 | SOB_Trapping |
80 | }; |
81 | |
82 | // FIXME: Unify with TUKind. |
83 | enum CompilingModuleKind { |
84 | /// Not compiling a module interface at all. |
85 | CMK_None, |
86 | |
87 | /// Compiling a module from a module map. |
88 | CMK_ModuleMap, |
89 | |
90 | /// Compiling a module from a list of header files. |
91 | CMK_HeaderModule, |
92 | |
93 | /// Compiling a C++ modules TS module interface unit. |
94 | CMK_ModuleInterface, |
95 | }; |
96 | |
97 | enum PragmaMSPointersToMembersKind { |
98 | PPTMK_BestCase, |
99 | PPTMK_FullGeneralitySingleInheritance, |
100 | PPTMK_FullGeneralityMultipleInheritance, |
101 | PPTMK_FullGeneralityVirtualInheritance |
102 | }; |
103 | |
104 | using MSVtorDispMode = clang::MSVtorDispMode; |
105 | |
106 | enum DefaultCallingConvention { |
107 | DCC_None, |
108 | DCC_CDecl, |
109 | DCC_FastCall, |
110 | DCC_StdCall, |
111 | DCC_VectorCall, |
112 | DCC_RegCall |
113 | }; |
114 | |
115 | enum AddrSpaceMapMangling { ASMM_Target, ASMM_On, ASMM_Off }; |
116 | |
117 | // Corresponds to _MSC_VER |
118 | enum MSVCMajorVersion { |
119 | MSVC2010 = 1600, |
120 | MSVC2012 = 1700, |
121 | MSVC2013 = 1800, |
122 | MSVC2015 = 1900, |
123 | MSVC2017 = 1910, |
124 | MSVC2017_5 = 1912, |
125 | MSVC2017_7 = 1914, |
126 | MSVC2019 = 1920, |
127 | MSVC2019_8 = 1928, |
128 | }; |
129 | |
130 | enum SYCLMajorVersion { |
131 | SYCL_None, |
132 | SYCL_2017, |
133 | }; |
134 | |
135 | /// Clang versions with different platform ABI conformance. |
136 | enum class ClangABI { |
137 | /// Attempt to be ABI-compatible with code generated by Clang 3.8.x |
138 | /// (SVN r257626). This causes <1 x long long> to be passed in an |
139 | /// integer register instead of an SSE register on x64_64. |
140 | Ver3_8, |
141 | |
142 | /// Attempt to be ABI-compatible with code generated by Clang 4.0.x |
143 | /// (SVN r291814). This causes move operations to be ignored when |
144 | /// determining whether a class type can be passed or returned directly. |
145 | Ver4, |
146 | |
147 | /// Attempt to be ABI-compatible with code generated by Clang 6.0.x |
148 | /// (SVN r321711). This causes determination of whether a type is |
149 | /// standard-layout to ignore collisions between empty base classes |
150 | /// and between base classes and member subobjects, which affects |
151 | /// whether we reuse base class tail padding in some ABIs. |
152 | Ver6, |
153 | |
154 | /// Attempt to be ABI-compatible with code generated by Clang 7.0.x |
155 | /// (SVN r338536). This causes alignof (C++) and _Alignof (C11) to be |
156 | /// compatible with __alignof (i.e., return the preferred alignment) |
157 | /// rather than returning the required alignment. |
158 | Ver7, |
159 | |
160 | /// Attempt to be ABI-compatible with code generated by Clang 9.0.x |
161 | /// (SVN r351319). This causes vectors of __int128 to be passed in memory |
162 | /// instead of passing in multiple scalar registers on x86_64 on Linux and |
163 | /// NetBSD. |
164 | Ver9, |
165 | |
166 | /// Attempt to be ABI-compatible with code generated by Clang 11.0.x |
167 | /// (git 2e10b7a39b93). This causes clang to pass unions with a 256-bit |
168 | /// vector member on the stack instead of using registers, to not properly |
169 | /// mangle substitutions for template names in some cases, and to mangle |
170 | /// declaration template arguments without a cast to the parameter type |
171 | /// even when that can lead to mangling collisions. |
172 | Ver11, |
173 | |
174 | /// Conform to the underlying platform's C and C++ ABIs as closely |
175 | /// as we can. |
176 | Latest |
177 | }; |
178 | |
179 | enum class CoreFoundationABI { |
180 | /// No interoperability ABI has been specified |
181 | Unspecified, |
182 | /// CoreFoundation does not have any language interoperability |
183 | Standalone, |
184 | /// Interoperability with the ObjectiveC runtime |
185 | ObjectiveC, |
186 | /// Interoperability with the latest known version of the Swift runtime |
187 | Swift, |
188 | /// Interoperability with the Swift 5.0 runtime |
189 | Swift5_0, |
190 | /// Interoperability with the Swift 4.2 runtime |
191 | Swift4_2, |
192 | /// Interoperability with the Swift 4.1 runtime |
193 | Swift4_1, |
194 | }; |
195 | |
196 | enum FPModeKind { |
197 | // Disable the floating point pragma |
198 | FPM_Off, |
199 | |
200 | // Enable the floating point pragma |
201 | FPM_On, |
202 | |
203 | // Aggressively fuse FP ops (E.g. FMA) disregarding pragmas. |
204 | FPM_Fast, |
205 | |
206 | // Aggressively fuse FP ops and honor pragmas. |
207 | FPM_FastHonorPragmas |
208 | }; |
209 | |
210 | /// Alias for RoundingMode::NearestTiesToEven. |
211 | static constexpr unsigned FPR_ToNearest = |
212 | static_cast<unsigned>(llvm::RoundingMode::NearestTiesToEven); |
213 | |
214 | /// Possible floating point exception behavior. |
215 | enum FPExceptionModeKind { |
216 | /// Assume that floating-point exceptions are masked. |
217 | FPE_Ignore, |
218 | /// Transformations do not cause new exceptions but may hide some. |
219 | FPE_MayTrap, |
220 | /// Strictly preserve the floating-point exception semantics. |
221 | FPE_Strict |
222 | }; |
223 | |
224 | /// Possible exception handling behavior. |
225 | using ExceptionHandlingKind = llvm::ExceptionHandling; |
226 | |
227 | enum class LaxVectorConversionKind { |
228 | /// Permit no implicit vector bitcasts. |
229 | None, |
230 | /// Permit vector bitcasts between integer vectors with different numbers |
231 | /// of elements but the same total bit-width. |
232 | Integer, |
233 | /// Permit vector bitcasts between all vectors with the same total |
234 | /// bit-width. |
235 | All, |
236 | }; |
237 | |
238 | enum class SignReturnAddressScopeKind { |
239 | /// No signing for any function. |
240 | None, |
241 | /// Sign the return address of functions that spill LR. |
242 | NonLeaf, |
243 | /// Sign the return address of all functions, |
244 | All |
245 | }; |
246 | |
247 | enum class SignReturnAddressKeyKind { |
248 | /// Return address signing uses APIA key. |
249 | AKey, |
250 | /// Return address signing uses APIB key. |
251 | BKey |
252 | }; |
253 | |
254 | enum class ThreadModelKind { |
255 | /// POSIX Threads. |
256 | POSIX, |
257 | /// Single Threaded Environment. |
258 | Single |
259 | }; |
260 | |
261 | public: |
262 | /// The used language standard. |
263 | LangStandard::Kind LangStd; |
264 | |
265 | /// Set of enabled sanitizers. |
266 | SanitizerSet Sanitize; |
267 | |
268 | /// Paths to files specifying which objects |
269 | /// (files, functions, variables) should not be instrumented. |
270 | std::vector<std::string> NoSanitizeFiles; |
271 | |
272 | /// Paths to the XRay "always instrument" files specifying which |
273 | /// objects (files, functions, variables) should be imbued with the XRay |
274 | /// "always instrument" attribute. |
275 | /// WARNING: This is a deprecated field and will go away in the future. |
276 | std::vector<std::string> XRayAlwaysInstrumentFiles; |
277 | |
278 | /// Paths to the XRay "never instrument" files specifying which |
279 | /// objects (files, functions, variables) should be imbued with the XRay |
280 | /// "never instrument" attribute. |
281 | /// WARNING: This is a deprecated field and will go away in the future. |
282 | std::vector<std::string> XRayNeverInstrumentFiles; |
283 | |
284 | /// Paths to the XRay attribute list files, specifying which objects |
285 | /// (files, functions, variables) should be imbued with the appropriate XRay |
286 | /// attribute(s). |
287 | std::vector<std::string> XRayAttrListFiles; |
288 | |
289 | /// Paths to special case list files specifying which entities |
290 | /// (files, functions) should or should not be instrumented. |
291 | std::vector<std::string> ProfileListFiles; |
292 | |
293 | clang::ObjCRuntime ObjCRuntime; |
294 | |
295 | CoreFoundationABI CFRuntime = CoreFoundationABI::Unspecified; |
296 | |
297 | std::string ObjCConstantStringClass; |
298 | |
299 | /// The name of the handler function to be called when -ftrapv is |
300 | /// specified. |
301 | /// |
302 | /// If none is specified, abort (GCC-compatible behaviour). |
303 | std::string OverflowHandler; |
304 | |
305 | /// The module currently being compiled as specified by -fmodule-name. |
306 | std::string ModuleName; |
307 | |
308 | /// The name of the current module, of which the main source file |
309 | /// is a part. If CompilingModule is set, we are compiling the interface |
310 | /// of this module, otherwise we are compiling an implementation file of |
311 | /// it. This starts as ModuleName in case -fmodule-name is provided and |
312 | /// changes during compilation to reflect the current module. |
313 | std::string CurrentModule; |
314 | |
315 | /// The names of any features to enable in module 'requires' decls |
316 | /// in addition to the hard-coded list in Module.cpp and the target features. |
317 | /// |
318 | /// This list is sorted. |
319 | std::vector<std::string> ModuleFeatures; |
320 | |
321 | /// Options for parsing comments. |
322 | CommentOptions CommentOpts; |
323 | |
324 | /// A list of all -fno-builtin-* function names (e.g., memset). |
325 | std::vector<std::string> NoBuiltinFuncs; |
326 | |
327 | /// Triples of the OpenMP targets that the host code codegen should |
328 | /// take into account in order to generate accurate offloading descriptors. |
329 | std::vector<llvm::Triple> OMPTargetTriples; |
330 | |
331 | /// Name of the IR file that contains the result of the OpenMP target |
332 | /// host code generation. |
333 | std::string OMPHostIRFile; |
334 | |
335 | /// The user provided compilation unit ID, if non-empty. This is used to |
336 | /// externalize static variables which is needed to support accessing static |
337 | /// device variables in host code for single source offloading languages |
338 | /// like CUDA/HIP. |
339 | std::string CUID; |
340 | |
341 | /// Indicates whether the front-end is explicitly told that the |
342 | /// input is a header file (i.e. -x c-header). |
343 | bool IsHeaderFile = false; |
344 | |
345 | LangOptions(); |
346 | |
347 | // Define accessors/mutators for language options of enumeration type. |
348 | #define LANGOPT(Name, Bits, Default, Description) |
349 | #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ |
350 | Type get##Name() const { return static_cast<Type>(Name); } \ |
351 | void set##Name(Type Value) { Name = static_cast<unsigned>(Value); } |
352 | #include "clang/Basic/LangOptions.def" |
353 | |
354 | /// Are we compiling a module interface (.cppm or module map)? |
355 | bool isCompilingModule() const { |
356 | return getCompilingModule() != CMK_None; |
357 | } |
358 | |
359 | /// Do we need to track the owning module for a local declaration? |
360 | bool trackLocalOwningModule() const { |
361 | return isCompilingModule() || ModulesLocalVisibility; |
362 | } |
363 | |
364 | bool isSignedOverflowDefined() const { |
365 | return getSignedOverflowBehavior() == SOB_Defined; |
366 | } |
367 | |
368 | bool isSubscriptPointerArithmetic() const { |
369 | return ObjCRuntime.isSubscriptPointerArithmetic() && |
370 | !ObjCSubscriptingLegacyRuntime; |
371 | } |
372 | |
373 | bool isCompatibleWithMSVC(MSVCMajorVersion MajorVersion) const { |
374 | return MSCompatibilityVersion >= MajorVersion * 100000U; |
375 | } |
376 | |
377 | /// Reset all of the options that are not considered when building a |
378 | /// module. |
379 | void resetNonModularOptions(); |
380 | |
381 | /// Is this a libc/libm function that is no longer recognized as a |
382 | /// builtin because a -fno-builtin-* option has been specified? |
383 | bool isNoBuiltinFunc(StringRef Name) const; |
384 | |
385 | /// True if any ObjC types may have non-trivial lifetime qualifiers. |
386 | bool allowsNonTrivialObjCLifetimeQualifiers() const { |
387 | return ObjCAutoRefCount || ObjCWeak; |
388 | } |
389 | |
390 | bool assumeFunctionsAreConvergent() const { |
391 | return ConvergentFunctions; |
392 | } |
393 | |
394 | /// Return the OpenCL C or C++ version as a VersionTuple. |
395 | VersionTuple getOpenCLVersionTuple() const; |
396 | |
397 | /// Check if return address signing is enabled. |
398 | bool hasSignReturnAddress() const { |
399 | return getSignReturnAddressScope() != SignReturnAddressScopeKind::None; |
400 | } |
401 | |
402 | /// Check if return address signing uses AKey. |
403 | bool isSignReturnAddressWithAKey() const { |
404 | return getSignReturnAddressKey() == SignReturnAddressKeyKind::AKey; |
405 | } |
406 | |
407 | /// Check if leaf functions are also signed. |
408 | bool isSignReturnAddressScopeAll() const { |
409 | return getSignReturnAddressScope() == SignReturnAddressScopeKind::All; |
410 | } |
411 | |
412 | bool hasSjLjExceptions() const { |
413 | return getExceptionHandling() == llvm::ExceptionHandling::SjLj; |
414 | } |
415 | |
416 | bool hasSEHExceptions() const { |
417 | return getExceptionHandling() == llvm::ExceptionHandling::WinEH; |
418 | } |
419 | |
420 | bool hasDWARFExceptions() const { |
421 | return getExceptionHandling() == llvm::ExceptionHandling::DwarfCFI; |
422 | } |
423 | |
424 | bool hasWasmExceptions() const { |
425 | return getExceptionHandling() == llvm::ExceptionHandling::Wasm; |
426 | } |
427 | }; |
428 | |
429 | /// Floating point control options |
430 | class FPOptionsOverride; |
431 | class FPOptions { |
432 | public: |
433 | // We start by defining the layout. |
434 | using storage_type = uint16_t; |
435 | |
436 | using RoundingMode = llvm::RoundingMode; |
437 | |
438 | static constexpr unsigned StorageBitSize = 8 * sizeof(storage_type); |
439 | |
440 | // Define a fake option named "First" so that we have a PREVIOUS even for the |
441 | // real first option. |
442 | static constexpr storage_type FirstShift = 0, FirstWidth = 0; |
443 | #define OPTION(NAME, TYPE, WIDTH, PREVIOUS) \ |
444 | static constexpr storage_type NAME##Shift = \ |
445 | PREVIOUS##Shift + PREVIOUS##Width; \ |
446 | static constexpr storage_type NAME##Width = WIDTH; \ |
447 | static constexpr storage_type NAME##Mask = ((1 << NAME##Width) - 1) \ |
448 | << NAME##Shift; |
449 | #include "clang/Basic/FPOptions.def" |
450 | |
451 | static constexpr storage_type TotalWidth = 0 |
452 | #define OPTION(NAME, TYPE, WIDTH, PREVIOUS) +WIDTH |
453 | #include "clang/Basic/FPOptions.def" |
454 | ; |
455 | static_assert(TotalWidth <= StorageBitSize, "Too short type for FPOptions"); |
456 | |
457 | private: |
458 | storage_type Value; |
459 | |
460 | public: |
461 | FPOptions() : Value(0) { |
462 | setFPContractMode(LangOptions::FPM_Off); |
463 | setRoundingMode(static_cast<RoundingMode>(LangOptions::FPR_ToNearest)); |
464 | setFPExceptionMode(LangOptions::FPE_Ignore); |
465 | } |
466 | explicit FPOptions(const LangOptions &LO) { |
467 | Value = 0; |
468 | // The language fp contract option FPM_FastHonorPragmas has the same effect |
469 | // as FPM_Fast in frontend. For simplicity, use FPM_Fast uniformly in |
470 | // frontend. |
471 | auto LangOptContractMode = LO.getDefaultFPContractMode(); |
472 | if (LangOptContractMode == LangOptions::FPM_FastHonorPragmas) |
473 | LangOptContractMode = LangOptions::FPM_Fast; |
474 | setFPContractMode(LangOptContractMode); |
475 | setRoundingMode(LO.getFPRoundingMode()); |
476 | setFPExceptionMode(LO.getFPExceptionMode()); |
477 | setAllowFPReassociate(LO.AllowFPReassoc); |
478 | setNoHonorNaNs(LO.NoHonorNaNs); |
479 | setNoHonorInfs(LO.NoHonorInfs); |
480 | setNoSignedZero(LO.NoSignedZero); |
481 | setAllowReciprocal(LO.AllowRecip); |
482 | setAllowApproxFunc(LO.ApproxFunc); |
483 | if (getFPContractMode() == LangOptions::FPM_On && |
484 | getRoundingMode() == llvm::RoundingMode::Dynamic && |
485 | getFPExceptionMode() == LangOptions::FPE_Strict) |
486 | // If the FP settings are set to the "strict" model, then |
487 | // FENV access is set to true. (ffp-model=strict) |
488 | setAllowFEnvAccess(true); |
489 | else |
490 | setAllowFEnvAccess(LangOptions::FPM_Off); |
491 | } |
492 | |
493 | bool allowFPContractWithinStatement() const { |
494 | return getFPContractMode() == LangOptions::FPM_On; |
495 | } |
496 | void setAllowFPContractWithinStatement() { |
497 | setFPContractMode(LangOptions::FPM_On); |
498 | } |
499 | |
500 | bool allowFPContractAcrossStatement() const { |
501 | return getFPContractMode() == LangOptions::FPM_Fast; |
502 | } |
503 | void setAllowFPContractAcrossStatement() { |
504 | setFPContractMode(LangOptions::FPM_Fast); |
505 | } |
506 | |
507 | bool isFPConstrained() const { |
508 | return getRoundingMode() != llvm::RoundingMode::NearestTiesToEven || |
509 | getFPExceptionMode() != LangOptions::FPE_Ignore || |
510 | getAllowFEnvAccess(); |
511 | } |
512 | |
513 | bool operator==(FPOptions other) const { return Value == other.Value; } |
514 | |
515 | /// Return the default value of FPOptions that's used when trailing |
516 | /// storage isn't required. |
517 | static FPOptions defaultWithoutTrailingStorage(const LangOptions &LO); |
518 | |
519 | storage_type getAsOpaqueInt() const { return Value; } |
520 | static FPOptions getFromOpaqueInt(storage_type Value) { |
521 | FPOptions Opts; |
522 | Opts.Value = Value; |
523 | return Opts; |
524 | } |
525 | |
526 | // We can define most of the accessors automatically: |
527 | #define OPTION(NAME, TYPE, WIDTH, PREVIOUS) \ |
528 | TYPE get##NAME() const { \ |
529 | return static_cast<TYPE>((Value & NAME##Mask) >> NAME##Shift); \ |
530 | } \ |
531 | void set##NAME(TYPE value) { \ |
532 | Value = (Value & ~NAME##Mask) | (storage_type(value) << NAME##Shift); \ |
533 | } |
534 | #include "clang/Basic/FPOptions.def" |
535 | LLVM_DUMP_METHOD__attribute__((noinline)) __attribute__((__used__)) void dump(); |
536 | }; |
537 | |
538 | /// Represents difference between two FPOptions values. |
539 | /// |
540 | /// The effect of language constructs changing the set of floating point options |
541 | /// is usually a change of some FP properties while leaving others intact. This |
542 | /// class describes such changes by keeping information about what FP options |
543 | /// are overridden. |
544 | /// |
545 | /// The integral set of FP options, described by the class FPOptions, may be |
546 | /// represented as a default FP option set, defined by language standard and |
547 | /// command line options, with the overrides introduced by pragmas. |
548 | /// |
549 | /// The is implemented as a value of the new FPOptions plus a mask showing which |
550 | /// fields are actually set in it. |
551 | class FPOptionsOverride { |
552 | FPOptions Options = FPOptions::getFromOpaqueInt(0); |
553 | FPOptions::storage_type OverrideMask = 0; |
554 | |
555 | public: |
556 | using RoundingMode = llvm::RoundingMode; |
557 | |
558 | /// The type suitable for storing values of FPOptionsOverride. Must be twice |
559 | /// as wide as bit size of FPOption. |
560 | using storage_type = uint32_t; |
561 | static_assert(sizeof(storage_type) >= 2 * sizeof(FPOptions::storage_type), |
562 | "Too short type for FPOptionsOverride"); |
563 | |
564 | /// Bit mask selecting bits of OverrideMask in serialized representation of |
565 | /// FPOptionsOverride. |
566 | static constexpr storage_type OverrideMaskBits = |
567 | (static_cast<storage_type>(1) << FPOptions::StorageBitSize) - 1; |
568 | |
569 | FPOptionsOverride() {} |
570 | FPOptionsOverride(const LangOptions &LO) |
571 | : Options(LO), OverrideMask(OverrideMaskBits) {} |
572 | FPOptionsOverride(FPOptions FPO) |
573 | : Options(FPO), OverrideMask(OverrideMaskBits) {} |
574 | |
575 | bool requiresTrailingStorage() const { return OverrideMask != 0; } |
576 | |
577 | void setAllowFPContractWithinStatement() { |
578 | setFPContractModeOverride(LangOptions::FPM_On); |
579 | } |
580 | |
581 | void setAllowFPContractAcrossStatement() { |
582 | setFPContractModeOverride(LangOptions::FPM_Fast); |
583 | } |
584 | |
585 | void setDisallowFPContract() { |
586 | setFPContractModeOverride(LangOptions::FPM_Off); |
587 | } |
588 | |
589 | void setFPPreciseEnabled(bool Value) { |
590 | setAllowFPReassociateOverride(!Value); |
591 | setNoHonorNaNsOverride(!Value); |
592 | setNoHonorInfsOverride(!Value); |
593 | setNoSignedZeroOverride(!Value); |
594 | setAllowReciprocalOverride(!Value); |
595 | setAllowApproxFuncOverride(!Value); |
596 | if (Value) |
597 | /* Precise mode implies fp_contract=on and disables ffast-math */ |
598 | setAllowFPContractWithinStatement(); |
599 | else |
600 | /* Precise mode disabled sets fp_contract=fast and enables ffast-math */ |
601 | setAllowFPContractAcrossStatement(); |
602 | } |
603 | |
604 | storage_type getAsOpaqueInt() const { |
605 | return (static_cast<storage_type>(Options.getAsOpaqueInt()) |
606 | << FPOptions::StorageBitSize) | |
607 | OverrideMask; |
608 | } |
609 | static FPOptionsOverride getFromOpaqueInt(storage_type I) { |
610 | FPOptionsOverride Opts; |
611 | Opts.OverrideMask = I & OverrideMaskBits; |
612 | Opts.Options = FPOptions::getFromOpaqueInt(I >> FPOptions::StorageBitSize); |
613 | return Opts; |
614 | } |
615 | |
616 | FPOptions applyOverrides(FPOptions Base) { |
617 | FPOptions Result = |
618 | FPOptions::getFromOpaqueInt((Base.getAsOpaqueInt() & ~OverrideMask) | |
619 | (Options.getAsOpaqueInt() & OverrideMask)); |
620 | return Result; |
621 | } |
622 | |
623 | FPOptions applyOverrides(const LangOptions &LO) { |
624 | return applyOverrides(FPOptions(LO)); |
625 | } |
626 | |
627 | bool operator==(FPOptionsOverride other) const { |
628 | return Options == other.Options && OverrideMask == other.OverrideMask; |
629 | } |
630 | bool operator!=(FPOptionsOverride other) const { return !(*this == other); } |
631 | |
632 | #define OPTION(NAME, TYPE, WIDTH, PREVIOUS) \ |
633 | bool has##NAME##Override() const { \ |
634 | return OverrideMask & FPOptions::NAME##Mask; \ |
635 | } \ |
636 | TYPE get##NAME##Override() const { \ |
637 | assert(has##NAME##Override())((has##NAME##Override()) ? static_cast<void> (0) : __assert_fail ("has##NAME##Override()", "/build/llvm-toolchain-snapshot-13~++20210413100635+64c24f493e5f/clang/include/clang/Basic/LangOptions.h" , 637, __PRETTY_FUNCTION__)); \ |
638 | return Options.get##NAME(); \ |
639 | } \ |
640 | void clear##NAME##Override() { \ |
641 | /* Clear the actual value so that we don't have spurious differences when \ |
642 | * testing equality. */ \ |
643 | Options.set##NAME(TYPE(0)); \ |
644 | OverrideMask &= ~FPOptions::NAME##Mask; \ |
645 | } \ |
646 | void set##NAME##Override(TYPE value) { \ |
647 | Options.set##NAME(value); \ |
648 | OverrideMask |= FPOptions::NAME##Mask; \ |
649 | } |
650 | #include "clang/Basic/FPOptions.def" |
651 | LLVM_DUMP_METHOD__attribute__((noinline)) __attribute__((__used__)) void dump(); |
652 | }; |
653 | |
654 | /// Describes the kind of translation unit being processed. |
655 | enum TranslationUnitKind { |
656 | /// The translation unit is a complete translation unit. |
657 | TU_Complete, |
658 | |
659 | /// The translation unit is a prefix to a translation unit, and is |
660 | /// not complete. |
661 | TU_Prefix, |
662 | |
663 | /// The translation unit is a module. |
664 | TU_Module |
665 | }; |
666 | |
667 | } // namespace clang |
668 | |
669 | #endif // LLVM_CLANG_BASIC_LANGOPTIONS_H |