File: | clang/lib/AST/ItaniumMangle.cpp |
Warning: | line 338, column 28 Called C++ object pointer is null |
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1 | //===--- ItaniumMangle.cpp - Itanium C++ Name Mangling ----------*- 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 | // Implements C++ name mangling according to the Itanium C++ ABI, | |||
10 | // which is used in GCC 3.2 and newer (and many compilers that are | |||
11 | // ABI-compatible with GCC): | |||
12 | // | |||
13 | // http://itanium-cxx-abi.github.io/cxx-abi/abi.html#mangling | |||
14 | // | |||
15 | //===----------------------------------------------------------------------===// | |||
16 | ||||
17 | #include "clang/AST/ASTContext.h" | |||
18 | #include "clang/AST/Attr.h" | |||
19 | #include "clang/AST/Decl.h" | |||
20 | #include "clang/AST/DeclCXX.h" | |||
21 | #include "clang/AST/DeclObjC.h" | |||
22 | #include "clang/AST/DeclOpenMP.h" | |||
23 | #include "clang/AST/DeclTemplate.h" | |||
24 | #include "clang/AST/Expr.h" | |||
25 | #include "clang/AST/ExprCXX.h" | |||
26 | #include "clang/AST/ExprConcepts.h" | |||
27 | #include "clang/AST/ExprObjC.h" | |||
28 | #include "clang/AST/Mangle.h" | |||
29 | #include "clang/AST/TypeLoc.h" | |||
30 | #include "clang/Basic/ABI.h" | |||
31 | #include "clang/Basic/Module.h" | |||
32 | #include "clang/Basic/SourceManager.h" | |||
33 | #include "clang/Basic/TargetInfo.h" | |||
34 | #include "clang/Basic/Thunk.h" | |||
35 | #include "llvm/ADT/StringExtras.h" | |||
36 | #include "llvm/Support/ErrorHandling.h" | |||
37 | #include "llvm/Support/raw_ostream.h" | |||
38 | ||||
39 | using namespace clang; | |||
40 | ||||
41 | namespace { | |||
42 | ||||
43 | /// Retrieve the declaration context that should be used when mangling the given | |||
44 | /// declaration. | |||
45 | static const DeclContext *getEffectiveDeclContext(const Decl *D) { | |||
46 | // The ABI assumes that lambda closure types that occur within | |||
47 | // default arguments live in the context of the function. However, due to | |||
48 | // the way in which Clang parses and creates function declarations, this is | |||
49 | // not the case: the lambda closure type ends up living in the context | |||
50 | // where the function itself resides, because the function declaration itself | |||
51 | // had not yet been created. Fix the context here. | |||
52 | if (const CXXRecordDecl *RD = dyn_cast<CXXRecordDecl>(D)) { | |||
53 | if (RD->isLambda()) | |||
54 | if (ParmVarDecl *ContextParam | |||
55 | = dyn_cast_or_null<ParmVarDecl>(RD->getLambdaContextDecl())) | |||
56 | return ContextParam->getDeclContext(); | |||
57 | } | |||
58 | ||||
59 | // Perform the same check for block literals. | |||
60 | if (const BlockDecl *BD = dyn_cast<BlockDecl>(D)) { | |||
61 | if (ParmVarDecl *ContextParam | |||
62 | = dyn_cast_or_null<ParmVarDecl>(BD->getBlockManglingContextDecl())) | |||
63 | return ContextParam->getDeclContext(); | |||
64 | } | |||
65 | ||||
66 | const DeclContext *DC = D->getDeclContext(); | |||
67 | if (isa<CapturedDecl>(DC) || isa<OMPDeclareReductionDecl>(DC) || | |||
68 | isa<OMPDeclareMapperDecl>(DC)) { | |||
69 | return getEffectiveDeclContext(cast<Decl>(DC)); | |||
70 | } | |||
71 | ||||
72 | if (const auto *VD = dyn_cast<VarDecl>(D)) | |||
73 | if (VD->isExternC()) | |||
74 | return VD->getASTContext().getTranslationUnitDecl(); | |||
75 | ||||
76 | if (const auto *FD = dyn_cast<FunctionDecl>(D)) | |||
77 | if (FD->isExternC()) | |||
78 | return FD->getASTContext().getTranslationUnitDecl(); | |||
79 | ||||
80 | return DC->getRedeclContext(); | |||
81 | } | |||
82 | ||||
83 | static const DeclContext *getEffectiveParentContext(const DeclContext *DC) { | |||
84 | return getEffectiveDeclContext(cast<Decl>(DC)); | |||
85 | } | |||
86 | ||||
87 | static bool isLocalContainerContext(const DeclContext *DC) { | |||
88 | return isa<FunctionDecl>(DC) || isa<ObjCMethodDecl>(DC) || isa<BlockDecl>(DC); | |||
89 | } | |||
90 | ||||
91 | static const RecordDecl *GetLocalClassDecl(const Decl *D) { | |||
92 | const DeclContext *DC = getEffectiveDeclContext(D); | |||
93 | while (!DC->isNamespace() && !DC->isTranslationUnit()) { | |||
94 | if (isLocalContainerContext(DC)) | |||
95 | return dyn_cast<RecordDecl>(D); | |||
96 | D = cast<Decl>(DC); | |||
97 | DC = getEffectiveDeclContext(D); | |||
98 | } | |||
99 | return nullptr; | |||
100 | } | |||
101 | ||||
102 | static const FunctionDecl *getStructor(const FunctionDecl *fn) { | |||
103 | if (const FunctionTemplateDecl *ftd = fn->getPrimaryTemplate()) | |||
104 | return ftd->getTemplatedDecl(); | |||
105 | ||||
106 | return fn; | |||
107 | } | |||
108 | ||||
109 | static const NamedDecl *getStructor(const NamedDecl *decl) { | |||
110 | const FunctionDecl *fn = dyn_cast_or_null<FunctionDecl>(decl); | |||
111 | return (fn ? getStructor(fn) : decl); | |||
112 | } | |||
113 | ||||
114 | static bool isLambda(const NamedDecl *ND) { | |||
115 | const CXXRecordDecl *Record = dyn_cast<CXXRecordDecl>(ND); | |||
116 | if (!Record) | |||
117 | return false; | |||
118 | ||||
119 | return Record->isLambda(); | |||
120 | } | |||
121 | ||||
122 | static const unsigned UnknownArity = ~0U; | |||
123 | ||||
124 | class ItaniumMangleContextImpl : public ItaniumMangleContext { | |||
125 | typedef std::pair<const DeclContext*, IdentifierInfo*> DiscriminatorKeyTy; | |||
126 | llvm::DenseMap<DiscriminatorKeyTy, unsigned> Discriminator; | |||
127 | llvm::DenseMap<const NamedDecl*, unsigned> Uniquifier; | |||
128 | const DiscriminatorOverrideTy DiscriminatorOverride = nullptr; | |||
129 | ||||
130 | bool NeedsUniqueInternalLinkageNames = false; | |||
131 | ||||
132 | public: | |||
133 | explicit ItaniumMangleContextImpl( | |||
134 | ASTContext &Context, DiagnosticsEngine &Diags, | |||
135 | DiscriminatorOverrideTy DiscriminatorOverride) | |||
136 | : ItaniumMangleContext(Context, Diags), | |||
137 | DiscriminatorOverride(DiscriminatorOverride) {} | |||
138 | ||||
139 | /// @name Mangler Entry Points | |||
140 | /// @{ | |||
141 | ||||
142 | bool shouldMangleCXXName(const NamedDecl *D) override; | |||
143 | bool shouldMangleStringLiteral(const StringLiteral *) override { | |||
144 | return false; | |||
145 | } | |||
146 | ||||
147 | bool isUniqueInternalLinkageDecl(const NamedDecl *ND) override; | |||
148 | void needsUniqueInternalLinkageNames() override { | |||
149 | NeedsUniqueInternalLinkageNames = true; | |||
150 | } | |||
151 | ||||
152 | void mangleCXXName(GlobalDecl GD, raw_ostream &) override; | |||
153 | void mangleThunk(const CXXMethodDecl *MD, const ThunkInfo &Thunk, | |||
154 | raw_ostream &) override; | |||
155 | void mangleCXXDtorThunk(const CXXDestructorDecl *DD, CXXDtorType Type, | |||
156 | const ThisAdjustment &ThisAdjustment, | |||
157 | raw_ostream &) override; | |||
158 | void mangleReferenceTemporary(const VarDecl *D, unsigned ManglingNumber, | |||
159 | raw_ostream &) override; | |||
160 | void mangleCXXVTable(const CXXRecordDecl *RD, raw_ostream &) override; | |||
161 | void mangleCXXVTT(const CXXRecordDecl *RD, raw_ostream &) override; | |||
162 | void mangleCXXCtorVTable(const CXXRecordDecl *RD, int64_t Offset, | |||
163 | const CXXRecordDecl *Type, raw_ostream &) override; | |||
164 | void mangleCXXRTTI(QualType T, raw_ostream &) override; | |||
165 | void mangleCXXRTTIName(QualType T, raw_ostream &) override; | |||
166 | void mangleTypeName(QualType T, raw_ostream &) override; | |||
167 | ||||
168 | void mangleCXXCtorComdat(const CXXConstructorDecl *D, raw_ostream &) override; | |||
169 | void mangleCXXDtorComdat(const CXXDestructorDecl *D, raw_ostream &) override; | |||
170 | void mangleStaticGuardVariable(const VarDecl *D, raw_ostream &) override; | |||
171 | void mangleDynamicInitializer(const VarDecl *D, raw_ostream &Out) override; | |||
172 | void mangleDynamicAtExitDestructor(const VarDecl *D, | |||
173 | raw_ostream &Out) override; | |||
174 | void mangleDynamicStermFinalizer(const VarDecl *D, raw_ostream &Out) override; | |||
175 | void mangleSEHFilterExpression(const NamedDecl *EnclosingDecl, | |||
176 | raw_ostream &Out) override; | |||
177 | void mangleSEHFinallyBlock(const NamedDecl *EnclosingDecl, | |||
178 | raw_ostream &Out) override; | |||
179 | void mangleItaniumThreadLocalInit(const VarDecl *D, raw_ostream &) override; | |||
180 | void mangleItaniumThreadLocalWrapper(const VarDecl *D, | |||
181 | raw_ostream &) override; | |||
182 | ||||
183 | void mangleStringLiteral(const StringLiteral *, raw_ostream &) override; | |||
184 | ||||
185 | void mangleLambdaSig(const CXXRecordDecl *Lambda, raw_ostream &) override; | |||
186 | ||||
187 | bool getNextDiscriminator(const NamedDecl *ND, unsigned &disc) { | |||
188 | // Lambda closure types are already numbered. | |||
189 | if (isLambda(ND)) | |||
190 | return false; | |||
191 | ||||
192 | // Anonymous tags are already numbered. | |||
193 | if (const TagDecl *Tag = dyn_cast<TagDecl>(ND)) { | |||
194 | if (Tag->getName().empty() && !Tag->getTypedefNameForAnonDecl()) | |||
195 | return false; | |||
196 | } | |||
197 | ||||
198 | // Use the canonical number for externally visible decls. | |||
199 | if (ND->isExternallyVisible()) { | |||
200 | unsigned discriminator = getASTContext().getManglingNumber(ND); | |||
201 | if (discriminator == 1) | |||
202 | return false; | |||
203 | disc = discriminator - 2; | |||
204 | return true; | |||
205 | } | |||
206 | ||||
207 | // Make up a reasonable number for internal decls. | |||
208 | unsigned &discriminator = Uniquifier[ND]; | |||
209 | if (!discriminator) { | |||
210 | const DeclContext *DC = getEffectiveDeclContext(ND); | |||
211 | discriminator = ++Discriminator[std::make_pair(DC, ND->getIdentifier())]; | |||
212 | } | |||
213 | if (discriminator == 1) | |||
214 | return false; | |||
215 | disc = discriminator-2; | |||
216 | return true; | |||
217 | } | |||
218 | ||||
219 | std::string getLambdaString(const CXXRecordDecl *Lambda) override { | |||
220 | // This function matches the one in MicrosoftMangle, which returns | |||
221 | // the string that is used in lambda mangled names. | |||
222 | assert(Lambda->isLambda() && "RD must be a lambda!")(static_cast <bool> (Lambda->isLambda() && "RD must be a lambda!" ) ? void (0) : __assert_fail ("Lambda->isLambda() && \"RD must be a lambda!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 222, __extension__ __PRETTY_FUNCTION__)); | |||
223 | std::string Name("<lambda"); | |||
224 | Decl *LambdaContextDecl = Lambda->getLambdaContextDecl(); | |||
225 | unsigned LambdaManglingNumber = Lambda->getLambdaManglingNumber(); | |||
226 | unsigned LambdaId; | |||
227 | const ParmVarDecl *Parm = dyn_cast_or_null<ParmVarDecl>(LambdaContextDecl); | |||
228 | const FunctionDecl *Func = | |||
229 | Parm ? dyn_cast<FunctionDecl>(Parm->getDeclContext()) : nullptr; | |||
230 | ||||
231 | if (Func) { | |||
232 | unsigned DefaultArgNo = | |||
233 | Func->getNumParams() - Parm->getFunctionScopeIndex(); | |||
234 | Name += llvm::utostr(DefaultArgNo); | |||
235 | Name += "_"; | |||
236 | } | |||
237 | ||||
238 | if (LambdaManglingNumber) | |||
239 | LambdaId = LambdaManglingNumber; | |||
240 | else | |||
241 | LambdaId = getAnonymousStructIdForDebugInfo(Lambda); | |||
242 | ||||
243 | Name += llvm::utostr(LambdaId); | |||
244 | Name += '>'; | |||
245 | return Name; | |||
246 | } | |||
247 | ||||
248 | DiscriminatorOverrideTy getDiscriminatorOverride() const override { | |||
249 | return DiscriminatorOverride; | |||
250 | } | |||
251 | ||||
252 | /// @} | |||
253 | }; | |||
254 | ||||
255 | /// Manage the mangling of a single name. | |||
256 | class CXXNameMangler { | |||
257 | ItaniumMangleContextImpl &Context; | |||
258 | raw_ostream &Out; | |||
259 | bool NullOut = false; | |||
260 | /// In the "DisableDerivedAbiTags" mode derived ABI tags are not calculated. | |||
261 | /// This mode is used when mangler creates another mangler recursively to | |||
262 | /// calculate ABI tags for the function return value or the variable type. | |||
263 | /// Also it is required to avoid infinite recursion in some cases. | |||
264 | bool DisableDerivedAbiTags = false; | |||
265 | ||||
266 | /// The "structor" is the top-level declaration being mangled, if | |||
267 | /// that's not a template specialization; otherwise it's the pattern | |||
268 | /// for that specialization. | |||
269 | const NamedDecl *Structor; | |||
270 | unsigned StructorType; | |||
271 | ||||
272 | /// The next substitution sequence number. | |||
273 | unsigned SeqID; | |||
274 | ||||
275 | class FunctionTypeDepthState { | |||
276 | unsigned Bits; | |||
277 | ||||
278 | enum { InResultTypeMask = 1 }; | |||
279 | ||||
280 | public: | |||
281 | FunctionTypeDepthState() : Bits(0) {} | |||
282 | ||||
283 | /// The number of function types we're inside. | |||
284 | unsigned getDepth() const { | |||
285 | return Bits >> 1; | |||
286 | } | |||
287 | ||||
288 | /// True if we're in the return type of the innermost function type. | |||
289 | bool isInResultType() const { | |||
290 | return Bits & InResultTypeMask; | |||
291 | } | |||
292 | ||||
293 | FunctionTypeDepthState push() { | |||
294 | FunctionTypeDepthState tmp = *this; | |||
295 | Bits = (Bits & ~InResultTypeMask) + 2; | |||
296 | return tmp; | |||
297 | } | |||
298 | ||||
299 | void enterResultType() { | |||
300 | Bits |= InResultTypeMask; | |||
301 | } | |||
302 | ||||
303 | void leaveResultType() { | |||
304 | Bits &= ~InResultTypeMask; | |||
305 | } | |||
306 | ||||
307 | void pop(FunctionTypeDepthState saved) { | |||
308 | assert(getDepth() == saved.getDepth() + 1)(static_cast <bool> (getDepth() == saved.getDepth() + 1 ) ? void (0) : __assert_fail ("getDepth() == saved.getDepth() + 1" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 308, __extension__ __PRETTY_FUNCTION__)); | |||
309 | Bits = saved.Bits; | |||
310 | } | |||
311 | ||||
312 | } FunctionTypeDepth; | |||
313 | ||||
314 | // abi_tag is a gcc attribute, taking one or more strings called "tags". | |||
315 | // The goal is to annotate against which version of a library an object was | |||
316 | // built and to be able to provide backwards compatibility ("dual abi"). | |||
317 | // For more information see docs/ItaniumMangleAbiTags.rst. | |||
318 | typedef SmallVector<StringRef, 4> AbiTagList; | |||
319 | ||||
320 | // State to gather all implicit and explicit tags used in a mangled name. | |||
321 | // Must always have an instance of this while emitting any name to keep | |||
322 | // track. | |||
323 | class AbiTagState final { | |||
324 | public: | |||
325 | explicit AbiTagState(AbiTagState *&Head) : LinkHead(Head) { | |||
326 | Parent = LinkHead; | |||
327 | LinkHead = this; | |||
328 | } | |||
329 | ||||
330 | // No copy, no move. | |||
331 | AbiTagState(const AbiTagState &) = delete; | |||
332 | AbiTagState &operator=(const AbiTagState &) = delete; | |||
333 | ||||
334 | ~AbiTagState() { pop(); } | |||
335 | ||||
336 | void write(raw_ostream &Out, const NamedDecl *ND, | |||
337 | const AbiTagList *AdditionalAbiTags) { | |||
338 | ND = cast<NamedDecl>(ND->getCanonicalDecl()); | |||
| ||||
339 | if (!isa<FunctionDecl>(ND) && !isa<VarDecl>(ND)) { | |||
340 | assert((static_cast <bool> (!AdditionalAbiTags && "only function and variables need a list of additional abi tags" ) ? void (0) : __assert_fail ("!AdditionalAbiTags && \"only function and variables need a list of additional abi tags\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 342, __extension__ __PRETTY_FUNCTION__)) | |||
341 | !AdditionalAbiTags &&(static_cast <bool> (!AdditionalAbiTags && "only function and variables need a list of additional abi tags" ) ? void (0) : __assert_fail ("!AdditionalAbiTags && \"only function and variables need a list of additional abi tags\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 342, __extension__ __PRETTY_FUNCTION__)) | |||
342 | "only function and variables need a list of additional abi tags")(static_cast <bool> (!AdditionalAbiTags && "only function and variables need a list of additional abi tags" ) ? void (0) : __assert_fail ("!AdditionalAbiTags && \"only function and variables need a list of additional abi tags\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 342, __extension__ __PRETTY_FUNCTION__)); | |||
343 | if (const auto *NS = dyn_cast<NamespaceDecl>(ND)) { | |||
344 | if (const auto *AbiTag = NS->getAttr<AbiTagAttr>()) { | |||
345 | UsedAbiTags.insert(UsedAbiTags.end(), AbiTag->tags().begin(), | |||
346 | AbiTag->tags().end()); | |||
347 | } | |||
348 | // Don't emit abi tags for namespaces. | |||
349 | return; | |||
350 | } | |||
351 | } | |||
352 | ||||
353 | AbiTagList TagList; | |||
354 | if (const auto *AbiTag = ND->getAttr<AbiTagAttr>()) { | |||
355 | UsedAbiTags.insert(UsedAbiTags.end(), AbiTag->tags().begin(), | |||
356 | AbiTag->tags().end()); | |||
357 | TagList.insert(TagList.end(), AbiTag->tags().begin(), | |||
358 | AbiTag->tags().end()); | |||
359 | } | |||
360 | ||||
361 | if (AdditionalAbiTags) { | |||
362 | UsedAbiTags.insert(UsedAbiTags.end(), AdditionalAbiTags->begin(), | |||
363 | AdditionalAbiTags->end()); | |||
364 | TagList.insert(TagList.end(), AdditionalAbiTags->begin(), | |||
365 | AdditionalAbiTags->end()); | |||
366 | } | |||
367 | ||||
368 | llvm::sort(TagList); | |||
369 | TagList.erase(std::unique(TagList.begin(), TagList.end()), TagList.end()); | |||
370 | ||||
371 | writeSortedUniqueAbiTags(Out, TagList); | |||
372 | } | |||
373 | ||||
374 | const AbiTagList &getUsedAbiTags() const { return UsedAbiTags; } | |||
375 | void setUsedAbiTags(const AbiTagList &AbiTags) { | |||
376 | UsedAbiTags = AbiTags; | |||
377 | } | |||
378 | ||||
379 | const AbiTagList &getEmittedAbiTags() const { | |||
380 | return EmittedAbiTags; | |||
381 | } | |||
382 | ||||
383 | const AbiTagList &getSortedUniqueUsedAbiTags() { | |||
384 | llvm::sort(UsedAbiTags); | |||
385 | UsedAbiTags.erase(std::unique(UsedAbiTags.begin(), UsedAbiTags.end()), | |||
386 | UsedAbiTags.end()); | |||
387 | return UsedAbiTags; | |||
388 | } | |||
389 | ||||
390 | private: | |||
391 | //! All abi tags used implicitly or explicitly. | |||
392 | AbiTagList UsedAbiTags; | |||
393 | //! All explicit abi tags (i.e. not from namespace). | |||
394 | AbiTagList EmittedAbiTags; | |||
395 | ||||
396 | AbiTagState *&LinkHead; | |||
397 | AbiTagState *Parent = nullptr; | |||
398 | ||||
399 | void pop() { | |||
400 | assert(LinkHead == this &&(static_cast <bool> (LinkHead == this && "abi tag link head must point to us on destruction" ) ? void (0) : __assert_fail ("LinkHead == this && \"abi tag link head must point to us on destruction\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 401, __extension__ __PRETTY_FUNCTION__)) | |||
401 | "abi tag link head must point to us on destruction")(static_cast <bool> (LinkHead == this && "abi tag link head must point to us on destruction" ) ? void (0) : __assert_fail ("LinkHead == this && \"abi tag link head must point to us on destruction\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 401, __extension__ __PRETTY_FUNCTION__)); | |||
402 | if (Parent) { | |||
403 | Parent->UsedAbiTags.insert(Parent->UsedAbiTags.end(), | |||
404 | UsedAbiTags.begin(), UsedAbiTags.end()); | |||
405 | Parent->EmittedAbiTags.insert(Parent->EmittedAbiTags.end(), | |||
406 | EmittedAbiTags.begin(), | |||
407 | EmittedAbiTags.end()); | |||
408 | } | |||
409 | LinkHead = Parent; | |||
410 | } | |||
411 | ||||
412 | void writeSortedUniqueAbiTags(raw_ostream &Out, const AbiTagList &AbiTags) { | |||
413 | for (const auto &Tag : AbiTags) { | |||
414 | EmittedAbiTags.push_back(Tag); | |||
415 | Out << "B"; | |||
416 | Out << Tag.size(); | |||
417 | Out << Tag; | |||
418 | } | |||
419 | } | |||
420 | }; | |||
421 | ||||
422 | AbiTagState *AbiTags = nullptr; | |||
423 | AbiTagState AbiTagsRoot; | |||
424 | ||||
425 | llvm::DenseMap<uintptr_t, unsigned> Substitutions; | |||
426 | llvm::DenseMap<StringRef, unsigned> ModuleSubstitutions; | |||
427 | ||||
428 | ASTContext &getASTContext() const { return Context.getASTContext(); } | |||
429 | ||||
430 | public: | |||
431 | CXXNameMangler(ItaniumMangleContextImpl &C, raw_ostream &Out_, | |||
432 | const NamedDecl *D = nullptr, bool NullOut_ = false) | |||
433 | : Context(C), Out(Out_), NullOut(NullOut_), Structor(getStructor(D)), | |||
434 | StructorType(0), SeqID(0), AbiTagsRoot(AbiTags) { | |||
435 | // These can't be mangled without a ctor type or dtor type. | |||
436 | assert(!D || (!isa<CXXDestructorDecl>(D) &&(static_cast <bool> (!D || (!isa<CXXDestructorDecl> (D) && !isa<CXXConstructorDecl>(D))) ? void (0) : __assert_fail ("!D || (!isa<CXXDestructorDecl>(D) && !isa<CXXConstructorDecl>(D))" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 437, __extension__ __PRETTY_FUNCTION__)) | |||
437 | !isa<CXXConstructorDecl>(D)))(static_cast <bool> (!D || (!isa<CXXDestructorDecl> (D) && !isa<CXXConstructorDecl>(D))) ? void (0) : __assert_fail ("!D || (!isa<CXXDestructorDecl>(D) && !isa<CXXConstructorDecl>(D))" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 437, __extension__ __PRETTY_FUNCTION__)); | |||
438 | } | |||
439 | CXXNameMangler(ItaniumMangleContextImpl &C, raw_ostream &Out_, | |||
440 | const CXXConstructorDecl *D, CXXCtorType Type) | |||
441 | : Context(C), Out(Out_), Structor(getStructor(D)), StructorType(Type), | |||
442 | SeqID(0), AbiTagsRoot(AbiTags) { } | |||
443 | CXXNameMangler(ItaniumMangleContextImpl &C, raw_ostream &Out_, | |||
444 | const CXXDestructorDecl *D, CXXDtorType Type) | |||
445 | : Context(C), Out(Out_), Structor(getStructor(D)), StructorType(Type), | |||
446 | SeqID(0), AbiTagsRoot(AbiTags) { } | |||
447 | ||||
448 | CXXNameMangler(CXXNameMangler &Outer, raw_ostream &Out_) | |||
449 | : Context(Outer.Context), Out(Out_), NullOut(false), | |||
450 | Structor(Outer.Structor), StructorType(Outer.StructorType), | |||
451 | SeqID(Outer.SeqID), FunctionTypeDepth(Outer.FunctionTypeDepth), | |||
452 | AbiTagsRoot(AbiTags), Substitutions(Outer.Substitutions) {} | |||
453 | ||||
454 | CXXNameMangler(CXXNameMangler &Outer, llvm::raw_null_ostream &Out_) | |||
455 | : Context(Outer.Context), Out(Out_), NullOut(true), | |||
456 | Structor(Outer.Structor), StructorType(Outer.StructorType), | |||
457 | SeqID(Outer.SeqID), FunctionTypeDepth(Outer.FunctionTypeDepth), | |||
458 | AbiTagsRoot(AbiTags), Substitutions(Outer.Substitutions) {} | |||
459 | ||||
460 | raw_ostream &getStream() { return Out; } | |||
461 | ||||
462 | void disableDerivedAbiTags() { DisableDerivedAbiTags = true; } | |||
463 | static bool shouldHaveAbiTags(ItaniumMangleContextImpl &C, const VarDecl *VD); | |||
464 | ||||
465 | void mangle(GlobalDecl GD); | |||
466 | void mangleCallOffset(int64_t NonVirtual, int64_t Virtual); | |||
467 | void mangleNumber(const llvm::APSInt &I); | |||
468 | void mangleNumber(int64_t Number); | |||
469 | void mangleFloat(const llvm::APFloat &F); | |||
470 | void mangleFunctionEncoding(GlobalDecl GD); | |||
471 | void mangleSeqID(unsigned SeqID); | |||
472 | void mangleName(GlobalDecl GD); | |||
473 | void mangleType(QualType T); | |||
474 | void mangleNameOrStandardSubstitution(const NamedDecl *ND); | |||
475 | void mangleLambdaSig(const CXXRecordDecl *Lambda); | |||
476 | ||||
477 | private: | |||
478 | ||||
479 | bool mangleSubstitution(const NamedDecl *ND); | |||
480 | bool mangleSubstitution(QualType T); | |||
481 | bool mangleSubstitution(TemplateName Template); | |||
482 | bool mangleSubstitution(uintptr_t Ptr); | |||
483 | ||||
484 | void mangleExistingSubstitution(TemplateName name); | |||
485 | ||||
486 | bool mangleStandardSubstitution(const NamedDecl *ND); | |||
487 | ||||
488 | void addSubstitution(const NamedDecl *ND) { | |||
489 | ND = cast<NamedDecl>(ND->getCanonicalDecl()); | |||
490 | ||||
491 | addSubstitution(reinterpret_cast<uintptr_t>(ND)); | |||
492 | } | |||
493 | void addSubstitution(QualType T); | |||
494 | void addSubstitution(TemplateName Template); | |||
495 | void addSubstitution(uintptr_t Ptr); | |||
496 | // Destructive copy substitutions from other mangler. | |||
497 | void extendSubstitutions(CXXNameMangler* Other); | |||
498 | ||||
499 | void mangleUnresolvedPrefix(NestedNameSpecifier *qualifier, | |||
500 | bool recursive = false); | |||
501 | void mangleUnresolvedName(NestedNameSpecifier *qualifier, | |||
502 | DeclarationName name, | |||
503 | const TemplateArgumentLoc *TemplateArgs, | |||
504 | unsigned NumTemplateArgs, | |||
505 | unsigned KnownArity = UnknownArity); | |||
506 | ||||
507 | void mangleFunctionEncodingBareType(const FunctionDecl *FD); | |||
508 | ||||
509 | void mangleNameWithAbiTags(GlobalDecl GD, | |||
510 | const AbiTagList *AdditionalAbiTags); | |||
511 | void mangleModuleName(const Module *M); | |||
512 | void mangleModuleNamePrefix(StringRef Name); | |||
513 | void mangleTemplateName(const TemplateDecl *TD, | |||
514 | const TemplateArgument *TemplateArgs, | |||
515 | unsigned NumTemplateArgs); | |||
516 | void mangleUnqualifiedName(GlobalDecl GD, | |||
517 | const AbiTagList *AdditionalAbiTags) { | |||
518 | mangleUnqualifiedName(GD, cast<NamedDecl>(GD.getDecl())->getDeclName(), UnknownArity, | |||
519 | AdditionalAbiTags); | |||
520 | } | |||
521 | void mangleUnqualifiedName(GlobalDecl GD, DeclarationName Name, | |||
522 | unsigned KnownArity, | |||
523 | const AbiTagList *AdditionalAbiTags); | |||
524 | void mangleUnscopedName(GlobalDecl GD, | |||
525 | const AbiTagList *AdditionalAbiTags); | |||
526 | void mangleUnscopedTemplateName(GlobalDecl GD, | |||
527 | const AbiTagList *AdditionalAbiTags); | |||
528 | void mangleSourceName(const IdentifierInfo *II); | |||
529 | void mangleRegCallName(const IdentifierInfo *II); | |||
530 | void mangleDeviceStubName(const IdentifierInfo *II); | |||
531 | void mangleSourceNameWithAbiTags( | |||
532 | const NamedDecl *ND, const AbiTagList *AdditionalAbiTags = nullptr); | |||
533 | void mangleLocalName(GlobalDecl GD, | |||
534 | const AbiTagList *AdditionalAbiTags); | |||
535 | void mangleBlockForPrefix(const BlockDecl *Block); | |||
536 | void mangleUnqualifiedBlock(const BlockDecl *Block); | |||
537 | void mangleTemplateParamDecl(const NamedDecl *Decl); | |||
538 | void mangleLambda(const CXXRecordDecl *Lambda); | |||
539 | void mangleNestedName(GlobalDecl GD, const DeclContext *DC, | |||
540 | const AbiTagList *AdditionalAbiTags, | |||
541 | bool NoFunction=false); | |||
542 | void mangleNestedName(const TemplateDecl *TD, | |||
543 | const TemplateArgument *TemplateArgs, | |||
544 | unsigned NumTemplateArgs); | |||
545 | void mangleNestedNameWithClosurePrefix(GlobalDecl GD, | |||
546 | const NamedDecl *PrefixND, | |||
547 | const AbiTagList *AdditionalAbiTags); | |||
548 | void manglePrefix(NestedNameSpecifier *qualifier); | |||
549 | void manglePrefix(const DeclContext *DC, bool NoFunction=false); | |||
550 | void manglePrefix(QualType type); | |||
551 | void mangleTemplatePrefix(GlobalDecl GD, bool NoFunction=false); | |||
552 | void mangleTemplatePrefix(TemplateName Template); | |||
553 | const NamedDecl *getClosurePrefix(const Decl *ND); | |||
554 | void mangleClosurePrefix(const NamedDecl *ND, bool NoFunction = false); | |||
555 | bool mangleUnresolvedTypeOrSimpleId(QualType DestroyedType, | |||
556 | StringRef Prefix = ""); | |||
557 | void mangleOperatorName(DeclarationName Name, unsigned Arity); | |||
558 | void mangleOperatorName(OverloadedOperatorKind OO, unsigned Arity); | |||
559 | void mangleVendorQualifier(StringRef qualifier); | |||
560 | void mangleQualifiers(Qualifiers Quals, const DependentAddressSpaceType *DAST = nullptr); | |||
561 | void mangleRefQualifier(RefQualifierKind RefQualifier); | |||
562 | ||||
563 | void mangleObjCMethodName(const ObjCMethodDecl *MD); | |||
564 | ||||
565 | // Declare manglers for every type class. | |||
566 | #define ABSTRACT_TYPE(CLASS, PARENT) | |||
567 | #define NON_CANONICAL_TYPE(CLASS, PARENT) | |||
568 | #define TYPE(CLASS, PARENT) void mangleType(const CLASS##Type *T); | |||
569 | #include "clang/AST/TypeNodes.inc" | |||
570 | ||||
571 | void mangleType(const TagType*); | |||
572 | void mangleType(TemplateName); | |||
573 | static StringRef getCallingConvQualifierName(CallingConv CC); | |||
574 | void mangleExtParameterInfo(FunctionProtoType::ExtParameterInfo info); | |||
575 | void mangleExtFunctionInfo(const FunctionType *T); | |||
576 | void mangleBareFunctionType(const FunctionProtoType *T, bool MangleReturnType, | |||
577 | const FunctionDecl *FD = nullptr); | |||
578 | void mangleNeonVectorType(const VectorType *T); | |||
579 | void mangleNeonVectorType(const DependentVectorType *T); | |||
580 | void mangleAArch64NeonVectorType(const VectorType *T); | |||
581 | void mangleAArch64NeonVectorType(const DependentVectorType *T); | |||
582 | void mangleAArch64FixedSveVectorType(const VectorType *T); | |||
583 | void mangleAArch64FixedSveVectorType(const DependentVectorType *T); | |||
584 | ||||
585 | void mangleIntegerLiteral(QualType T, const llvm::APSInt &Value); | |||
586 | void mangleFloatLiteral(QualType T, const llvm::APFloat &V); | |||
587 | void mangleFixedPointLiteral(); | |||
588 | void mangleNullPointer(QualType T); | |||
589 | ||||
590 | void mangleMemberExprBase(const Expr *base, bool isArrow); | |||
591 | void mangleMemberExpr(const Expr *base, bool isArrow, | |||
592 | NestedNameSpecifier *qualifier, | |||
593 | NamedDecl *firstQualifierLookup, | |||
594 | DeclarationName name, | |||
595 | const TemplateArgumentLoc *TemplateArgs, | |||
596 | unsigned NumTemplateArgs, | |||
597 | unsigned knownArity); | |||
598 | void mangleCastExpression(const Expr *E, StringRef CastEncoding); | |||
599 | void mangleInitListElements(const InitListExpr *InitList); | |||
600 | void mangleExpression(const Expr *E, unsigned Arity = UnknownArity, | |||
601 | bool AsTemplateArg = false); | |||
602 | void mangleCXXCtorType(CXXCtorType T, const CXXRecordDecl *InheritedFrom); | |||
603 | void mangleCXXDtorType(CXXDtorType T); | |||
604 | ||||
605 | void mangleTemplateArgs(TemplateName TN, | |||
606 | const TemplateArgumentLoc *TemplateArgs, | |||
607 | unsigned NumTemplateArgs); | |||
608 | void mangleTemplateArgs(TemplateName TN, const TemplateArgument *TemplateArgs, | |||
609 | unsigned NumTemplateArgs); | |||
610 | void mangleTemplateArgs(TemplateName TN, const TemplateArgumentList &AL); | |||
611 | void mangleTemplateArg(TemplateArgument A, bool NeedExactType); | |||
612 | void mangleTemplateArgExpr(const Expr *E); | |||
613 | void mangleValueInTemplateArg(QualType T, const APValue &V, bool TopLevel, | |||
614 | bool NeedExactType = false); | |||
615 | ||||
616 | void mangleTemplateParameter(unsigned Depth, unsigned Index); | |||
617 | ||||
618 | void mangleFunctionParam(const ParmVarDecl *parm); | |||
619 | ||||
620 | void writeAbiTags(const NamedDecl *ND, | |||
621 | const AbiTagList *AdditionalAbiTags); | |||
622 | ||||
623 | // Returns sorted unique list of ABI tags. | |||
624 | AbiTagList makeFunctionReturnTypeTags(const FunctionDecl *FD); | |||
625 | // Returns sorted unique list of ABI tags. | |||
626 | AbiTagList makeVariableTypeTags(const VarDecl *VD); | |||
627 | }; | |||
628 | ||||
629 | } | |||
630 | ||||
631 | static bool isInternalLinkageDecl(const NamedDecl *ND) { | |||
632 | if (ND && ND->getFormalLinkage() == InternalLinkage && | |||
633 | !ND->isExternallyVisible() && | |||
634 | getEffectiveDeclContext(ND)->isFileContext() && | |||
635 | !ND->isInAnonymousNamespace()) | |||
636 | return true; | |||
637 | return false; | |||
638 | } | |||
639 | ||||
640 | // Check if this Function Decl needs a unique internal linkage name. | |||
641 | bool ItaniumMangleContextImpl::isUniqueInternalLinkageDecl( | |||
642 | const NamedDecl *ND) { | |||
643 | if (!NeedsUniqueInternalLinkageNames || !ND) | |||
644 | return false; | |||
645 | ||||
646 | const auto *FD = dyn_cast<FunctionDecl>(ND); | |||
647 | if (!FD) | |||
648 | return false; | |||
649 | ||||
650 | // For C functions without prototypes, return false as their | |||
651 | // names should not be mangled. | |||
652 | if (!FD->getType()->getAs<FunctionProtoType>()) | |||
653 | return false; | |||
654 | ||||
655 | if (isInternalLinkageDecl(ND)) | |||
656 | return true; | |||
657 | ||||
658 | return false; | |||
659 | } | |||
660 | ||||
661 | bool ItaniumMangleContextImpl::shouldMangleCXXName(const NamedDecl *D) { | |||
662 | const FunctionDecl *FD = dyn_cast<FunctionDecl>(D); | |||
663 | if (FD) { | |||
664 | LanguageLinkage L = FD->getLanguageLinkage(); | |||
665 | // Overloadable functions need mangling. | |||
666 | if (FD->hasAttr<OverloadableAttr>()) | |||
667 | return true; | |||
668 | ||||
669 | // "main" is not mangled. | |||
670 | if (FD->isMain()) | |||
671 | return false; | |||
672 | ||||
673 | // The Windows ABI expects that we would never mangle "typical" | |||
674 | // user-defined entry points regardless of visibility or freestanding-ness. | |||
675 | // | |||
676 | // N.B. This is distinct from asking about "main". "main" has a lot of | |||
677 | // special rules associated with it in the standard while these | |||
678 | // user-defined entry points are outside of the purview of the standard. | |||
679 | // For example, there can be only one definition for "main" in a standards | |||
680 | // compliant program; however nothing forbids the existence of wmain and | |||
681 | // WinMain in the same translation unit. | |||
682 | if (FD->isMSVCRTEntryPoint()) | |||
683 | return false; | |||
684 | ||||
685 | // C++ functions and those whose names are not a simple identifier need | |||
686 | // mangling. | |||
687 | if (!FD->getDeclName().isIdentifier() || L == CXXLanguageLinkage) | |||
688 | return true; | |||
689 | ||||
690 | // C functions are not mangled. | |||
691 | if (L == CLanguageLinkage) | |||
692 | return false; | |||
693 | } | |||
694 | ||||
695 | // Otherwise, no mangling is done outside C++ mode. | |||
696 | if (!getASTContext().getLangOpts().CPlusPlus) | |||
697 | return false; | |||
698 | ||||
699 | const VarDecl *VD = dyn_cast<VarDecl>(D); | |||
700 | if (VD && !isa<DecompositionDecl>(D)) { | |||
701 | // C variables are not mangled. | |||
702 | if (VD->isExternC()) | |||
703 | return false; | |||
704 | ||||
705 | // Variables at global scope with non-internal linkage are not mangled | |||
706 | const DeclContext *DC = getEffectiveDeclContext(D); | |||
707 | // Check for extern variable declared locally. | |||
708 | if (DC->isFunctionOrMethod() && D->hasLinkage()) | |||
709 | while (!DC->isNamespace() && !DC->isTranslationUnit()) | |||
710 | DC = getEffectiveParentContext(DC); | |||
711 | if (DC->isTranslationUnit() && D->getFormalLinkage() != InternalLinkage && | |||
712 | !CXXNameMangler::shouldHaveAbiTags(*this, VD) && | |||
713 | !isa<VarTemplateSpecializationDecl>(D)) | |||
714 | return false; | |||
715 | } | |||
716 | ||||
717 | return true; | |||
718 | } | |||
719 | ||||
720 | void CXXNameMangler::writeAbiTags(const NamedDecl *ND, | |||
721 | const AbiTagList *AdditionalAbiTags) { | |||
722 | assert(AbiTags && "require AbiTagState")(static_cast <bool> (AbiTags && "require AbiTagState" ) ? void (0) : __assert_fail ("AbiTags && \"require AbiTagState\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 722, __extension__ __PRETTY_FUNCTION__)); | |||
723 | AbiTags->write(Out, ND, DisableDerivedAbiTags ? nullptr : AdditionalAbiTags); | |||
724 | } | |||
725 | ||||
726 | void CXXNameMangler::mangleSourceNameWithAbiTags( | |||
727 | const NamedDecl *ND, const AbiTagList *AdditionalAbiTags) { | |||
728 | mangleSourceName(ND->getIdentifier()); | |||
729 | writeAbiTags(ND, AdditionalAbiTags); | |||
730 | } | |||
731 | ||||
732 | void CXXNameMangler::mangle(GlobalDecl GD) { | |||
733 | // <mangled-name> ::= _Z <encoding> | |||
734 | // ::= <data name> | |||
735 | // ::= <special-name> | |||
736 | Out << "_Z"; | |||
737 | if (isa<FunctionDecl>(GD.getDecl())) | |||
738 | mangleFunctionEncoding(GD); | |||
739 | else if (isa<VarDecl, FieldDecl, MSGuidDecl, TemplateParamObjectDecl, | |||
740 | BindingDecl>(GD.getDecl())) | |||
741 | mangleName(GD); | |||
742 | else if (const IndirectFieldDecl *IFD = | |||
743 | dyn_cast<IndirectFieldDecl>(GD.getDecl())) | |||
744 | mangleName(IFD->getAnonField()); | |||
745 | else | |||
746 | llvm_unreachable("unexpected kind of global decl")::llvm::llvm_unreachable_internal("unexpected kind of global decl" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 746); | |||
747 | } | |||
748 | ||||
749 | void CXXNameMangler::mangleFunctionEncoding(GlobalDecl GD) { | |||
750 | const FunctionDecl *FD = cast<FunctionDecl>(GD.getDecl()); | |||
751 | // <encoding> ::= <function name> <bare-function-type> | |||
752 | ||||
753 | // Don't mangle in the type if this isn't a decl we should typically mangle. | |||
754 | if (!Context.shouldMangleDeclName(FD)) { | |||
755 | mangleName(GD); | |||
756 | return; | |||
757 | } | |||
758 | ||||
759 | AbiTagList ReturnTypeAbiTags = makeFunctionReturnTypeTags(FD); | |||
760 | if (ReturnTypeAbiTags.empty()) { | |||
761 | // There are no tags for return type, the simplest case. | |||
762 | mangleName(GD); | |||
763 | mangleFunctionEncodingBareType(FD); | |||
764 | return; | |||
765 | } | |||
766 | ||||
767 | // Mangle function name and encoding to temporary buffer. | |||
768 | // We have to output name and encoding to the same mangler to get the same | |||
769 | // substitution as it will be in final mangling. | |||
770 | SmallString<256> FunctionEncodingBuf; | |||
771 | llvm::raw_svector_ostream FunctionEncodingStream(FunctionEncodingBuf); | |||
772 | CXXNameMangler FunctionEncodingMangler(*this, FunctionEncodingStream); | |||
773 | // Output name of the function. | |||
774 | FunctionEncodingMangler.disableDerivedAbiTags(); | |||
775 | FunctionEncodingMangler.mangleNameWithAbiTags(FD, nullptr); | |||
776 | ||||
777 | // Remember length of the function name in the buffer. | |||
778 | size_t EncodingPositionStart = FunctionEncodingStream.str().size(); | |||
779 | FunctionEncodingMangler.mangleFunctionEncodingBareType(FD); | |||
780 | ||||
781 | // Get tags from return type that are not present in function name or | |||
782 | // encoding. | |||
783 | const AbiTagList &UsedAbiTags = | |||
784 | FunctionEncodingMangler.AbiTagsRoot.getSortedUniqueUsedAbiTags(); | |||
785 | AbiTagList AdditionalAbiTags(ReturnTypeAbiTags.size()); | |||
786 | AdditionalAbiTags.erase( | |||
787 | std::set_difference(ReturnTypeAbiTags.begin(), ReturnTypeAbiTags.end(), | |||
788 | UsedAbiTags.begin(), UsedAbiTags.end(), | |||
789 | AdditionalAbiTags.begin()), | |||
790 | AdditionalAbiTags.end()); | |||
791 | ||||
792 | // Output name with implicit tags and function encoding from temporary buffer. | |||
793 | mangleNameWithAbiTags(FD, &AdditionalAbiTags); | |||
794 | Out << FunctionEncodingStream.str().substr(EncodingPositionStart); | |||
795 | ||||
796 | // Function encoding could create new substitutions so we have to add | |||
797 | // temp mangled substitutions to main mangler. | |||
798 | extendSubstitutions(&FunctionEncodingMangler); | |||
799 | } | |||
800 | ||||
801 | void CXXNameMangler::mangleFunctionEncodingBareType(const FunctionDecl *FD) { | |||
802 | if (FD->hasAttr<EnableIfAttr>()) { | |||
803 | FunctionTypeDepthState Saved = FunctionTypeDepth.push(); | |||
804 | Out << "Ua9enable_ifI"; | |||
805 | for (AttrVec::const_iterator I = FD->getAttrs().begin(), | |||
806 | E = FD->getAttrs().end(); | |||
807 | I != E; ++I) { | |||
808 | EnableIfAttr *EIA = dyn_cast<EnableIfAttr>(*I); | |||
809 | if (!EIA) | |||
810 | continue; | |||
811 | if (Context.getASTContext().getLangOpts().getClangABICompat() > | |||
812 | LangOptions::ClangABI::Ver11) { | |||
813 | mangleTemplateArgExpr(EIA->getCond()); | |||
814 | } else { | |||
815 | // Prior to Clang 12, we hardcoded the X/E around enable-if's argument, | |||
816 | // even though <template-arg> should not include an X/E around | |||
817 | // <expr-primary>. | |||
818 | Out << 'X'; | |||
819 | mangleExpression(EIA->getCond()); | |||
820 | Out << 'E'; | |||
821 | } | |||
822 | } | |||
823 | Out << 'E'; | |||
824 | FunctionTypeDepth.pop(Saved); | |||
825 | } | |||
826 | ||||
827 | // When mangling an inheriting constructor, the bare function type used is | |||
828 | // that of the inherited constructor. | |||
829 | if (auto *CD = dyn_cast<CXXConstructorDecl>(FD)) | |||
830 | if (auto Inherited = CD->getInheritedConstructor()) | |||
831 | FD = Inherited.getConstructor(); | |||
832 | ||||
833 | // Whether the mangling of a function type includes the return type depends on | |||
834 | // the context and the nature of the function. The rules for deciding whether | |||
835 | // the return type is included are: | |||
836 | // | |||
837 | // 1. Template functions (names or types) have return types encoded, with | |||
838 | // the exceptions listed below. | |||
839 | // 2. Function types not appearing as part of a function name mangling, | |||
840 | // e.g. parameters, pointer types, etc., have return type encoded, with the | |||
841 | // exceptions listed below. | |||
842 | // 3. Non-template function names do not have return types encoded. | |||
843 | // | |||
844 | // The exceptions mentioned in (1) and (2) above, for which the return type is | |||
845 | // never included, are | |||
846 | // 1. Constructors. | |||
847 | // 2. Destructors. | |||
848 | // 3. Conversion operator functions, e.g. operator int. | |||
849 | bool MangleReturnType = false; | |||
850 | if (FunctionTemplateDecl *PrimaryTemplate = FD->getPrimaryTemplate()) { | |||
851 | if (!(isa<CXXConstructorDecl>(FD) || isa<CXXDestructorDecl>(FD) || | |||
852 | isa<CXXConversionDecl>(FD))) | |||
853 | MangleReturnType = true; | |||
854 | ||||
855 | // Mangle the type of the primary template. | |||
856 | FD = PrimaryTemplate->getTemplatedDecl(); | |||
857 | } | |||
858 | ||||
859 | mangleBareFunctionType(FD->getType()->castAs<FunctionProtoType>(), | |||
860 | MangleReturnType, FD); | |||
861 | } | |||
862 | ||||
863 | static const DeclContext *IgnoreLinkageSpecDecls(const DeclContext *DC) { | |||
864 | while (isa<LinkageSpecDecl>(DC)) { | |||
865 | DC = getEffectiveParentContext(DC); | |||
866 | } | |||
867 | ||||
868 | return DC; | |||
869 | } | |||
870 | ||||
871 | /// Return whether a given namespace is the 'std' namespace. | |||
872 | static bool isStd(const NamespaceDecl *NS) { | |||
873 | if (!IgnoreLinkageSpecDecls(getEffectiveParentContext(NS)) | |||
874 | ->isTranslationUnit()) | |||
875 | return false; | |||
876 | ||||
877 | const IdentifierInfo *II = NS->getOriginalNamespace()->getIdentifier(); | |||
878 | return II && II->isStr("std"); | |||
879 | } | |||
880 | ||||
881 | // isStdNamespace - Return whether a given decl context is a toplevel 'std' | |||
882 | // namespace. | |||
883 | static bool isStdNamespace(const DeclContext *DC) { | |||
884 | if (!DC->isNamespace()) | |||
885 | return false; | |||
886 | ||||
887 | return isStd(cast<NamespaceDecl>(DC)); | |||
888 | } | |||
889 | ||||
890 | static const GlobalDecl | |||
891 | isTemplate(GlobalDecl GD, const TemplateArgumentList *&TemplateArgs) { | |||
892 | const NamedDecl *ND = cast<NamedDecl>(GD.getDecl()); | |||
893 | // Check if we have a function template. | |||
894 | if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(ND)) { | |||
895 | if (const TemplateDecl *TD = FD->getPrimaryTemplate()) { | |||
896 | TemplateArgs = FD->getTemplateSpecializationArgs(); | |||
897 | return GD.getWithDecl(TD); | |||
898 | } | |||
899 | } | |||
900 | ||||
901 | // Check if we have a class template. | |||
902 | if (const ClassTemplateSpecializationDecl *Spec = | |||
903 | dyn_cast<ClassTemplateSpecializationDecl>(ND)) { | |||
904 | TemplateArgs = &Spec->getTemplateArgs(); | |||
905 | return GD.getWithDecl(Spec->getSpecializedTemplate()); | |||
906 | } | |||
907 | ||||
908 | // Check if we have a variable template. | |||
909 | if (const VarTemplateSpecializationDecl *Spec = | |||
910 | dyn_cast<VarTemplateSpecializationDecl>(ND)) { | |||
911 | TemplateArgs = &Spec->getTemplateArgs(); | |||
912 | return GD.getWithDecl(Spec->getSpecializedTemplate()); | |||
913 | } | |||
914 | ||||
915 | return GlobalDecl(); | |||
916 | } | |||
917 | ||||
918 | static TemplateName asTemplateName(GlobalDecl GD) { | |||
919 | const TemplateDecl *TD = dyn_cast_or_null<TemplateDecl>(GD.getDecl()); | |||
920 | return TemplateName(const_cast<TemplateDecl*>(TD)); | |||
921 | } | |||
922 | ||||
923 | void CXXNameMangler::mangleName(GlobalDecl GD) { | |||
924 | const NamedDecl *ND = cast<NamedDecl>(GD.getDecl()); | |||
925 | if (const VarDecl *VD = dyn_cast<VarDecl>(ND)) { | |||
926 | // Variables should have implicit tags from its type. | |||
927 | AbiTagList VariableTypeAbiTags = makeVariableTypeTags(VD); | |||
928 | if (VariableTypeAbiTags.empty()) { | |||
929 | // Simple case no variable type tags. | |||
930 | mangleNameWithAbiTags(VD, nullptr); | |||
931 | return; | |||
932 | } | |||
933 | ||||
934 | // Mangle variable name to null stream to collect tags. | |||
935 | llvm::raw_null_ostream NullOutStream; | |||
936 | CXXNameMangler VariableNameMangler(*this, NullOutStream); | |||
937 | VariableNameMangler.disableDerivedAbiTags(); | |||
938 | VariableNameMangler.mangleNameWithAbiTags(VD, nullptr); | |||
939 | ||||
940 | // Get tags from variable type that are not present in its name. | |||
941 | const AbiTagList &UsedAbiTags = | |||
942 | VariableNameMangler.AbiTagsRoot.getSortedUniqueUsedAbiTags(); | |||
943 | AbiTagList AdditionalAbiTags(VariableTypeAbiTags.size()); | |||
944 | AdditionalAbiTags.erase( | |||
945 | std::set_difference(VariableTypeAbiTags.begin(), | |||
946 | VariableTypeAbiTags.end(), UsedAbiTags.begin(), | |||
947 | UsedAbiTags.end(), AdditionalAbiTags.begin()), | |||
948 | AdditionalAbiTags.end()); | |||
949 | ||||
950 | // Output name with implicit tags. | |||
951 | mangleNameWithAbiTags(VD, &AdditionalAbiTags); | |||
952 | } else { | |||
953 | mangleNameWithAbiTags(GD, nullptr); | |||
954 | } | |||
955 | } | |||
956 | ||||
957 | void CXXNameMangler::mangleNameWithAbiTags(GlobalDecl GD, | |||
958 | const AbiTagList *AdditionalAbiTags) { | |||
959 | const NamedDecl *ND = cast<NamedDecl>(GD.getDecl()); | |||
960 | // <name> ::= [<module-name>] <nested-name> | |||
961 | // ::= [<module-name>] <unscoped-name> | |||
962 | // ::= [<module-name>] <unscoped-template-name> <template-args> | |||
963 | // ::= <local-name> | |||
964 | // | |||
965 | const DeclContext *DC = getEffectiveDeclContext(ND); | |||
966 | ||||
967 | // If this is an extern variable declared locally, the relevant DeclContext | |||
968 | // is that of the containing namespace, or the translation unit. | |||
969 | // FIXME: This is a hack; extern variables declared locally should have | |||
970 | // a proper semantic declaration context! | |||
971 | if (isLocalContainerContext(DC) && ND->hasLinkage() && !isLambda(ND)) | |||
972 | while (!DC->isNamespace() && !DC->isTranslationUnit()) | |||
973 | DC = getEffectiveParentContext(DC); | |||
974 | else if (GetLocalClassDecl(ND)) { | |||
975 | mangleLocalName(GD, AdditionalAbiTags); | |||
976 | return; | |||
977 | } | |||
978 | ||||
979 | DC = IgnoreLinkageSpecDecls(DC); | |||
980 | ||||
981 | if (isLocalContainerContext(DC)) { | |||
982 | mangleLocalName(GD, AdditionalAbiTags); | |||
983 | return; | |||
984 | } | |||
985 | ||||
986 | // Do not mangle the owning module for an external linkage declaration. | |||
987 | // This enables backwards-compatibility with non-modular code, and is | |||
988 | // a valid choice since conflicts are not permitted by C++ Modules TS | |||
989 | // [basic.def.odr]/6.2. | |||
990 | if (!ND->hasExternalFormalLinkage()) | |||
991 | if (Module *M = ND->getOwningModuleForLinkage()) | |||
992 | mangleModuleName(M); | |||
993 | ||||
994 | // Closures can require a nested-name mangling even if they're semantically | |||
995 | // in the global namespace. | |||
996 | if (const NamedDecl *PrefixND = getClosurePrefix(ND)) { | |||
997 | mangleNestedNameWithClosurePrefix(GD, PrefixND, AdditionalAbiTags); | |||
998 | return; | |||
999 | } | |||
1000 | ||||
1001 | if (DC->isTranslationUnit() || isStdNamespace(DC)) { | |||
1002 | // Check if we have a template. | |||
1003 | const TemplateArgumentList *TemplateArgs = nullptr; | |||
1004 | if (GlobalDecl TD = isTemplate(GD, TemplateArgs)) { | |||
1005 | mangleUnscopedTemplateName(TD, AdditionalAbiTags); | |||
1006 | mangleTemplateArgs(asTemplateName(TD), *TemplateArgs); | |||
1007 | return; | |||
1008 | } | |||
1009 | ||||
1010 | mangleUnscopedName(GD, AdditionalAbiTags); | |||
1011 | return; | |||
1012 | } | |||
1013 | ||||
1014 | mangleNestedName(GD, DC, AdditionalAbiTags); | |||
1015 | } | |||
1016 | ||||
1017 | void CXXNameMangler::mangleModuleName(const Module *M) { | |||
1018 | // Implement the C++ Modules TS name mangling proposal; see | |||
1019 | // https://gcc.gnu.org/wiki/cxx-modules?action=AttachFile | |||
1020 | // | |||
1021 | // <module-name> ::= W <unscoped-name>+ E | |||
1022 | // ::= W <module-subst> <unscoped-name>* E | |||
1023 | Out << 'W'; | |||
1024 | mangleModuleNamePrefix(M->Name); | |||
1025 | Out << 'E'; | |||
1026 | } | |||
1027 | ||||
1028 | void CXXNameMangler::mangleModuleNamePrefix(StringRef Name) { | |||
1029 | // <module-subst> ::= _ <seq-id> # 0 < seq-id < 10 | |||
1030 | // ::= W <seq-id - 10> _ # otherwise | |||
1031 | auto It = ModuleSubstitutions.find(Name); | |||
1032 | if (It != ModuleSubstitutions.end()) { | |||
1033 | if (It->second < 10) | |||
1034 | Out << '_' << static_cast<char>('0' + It->second); | |||
1035 | else | |||
1036 | Out << 'W' << (It->second - 10) << '_'; | |||
1037 | return; | |||
1038 | } | |||
1039 | ||||
1040 | // FIXME: Preserve hierarchy in module names rather than flattening | |||
1041 | // them to strings; use Module*s as substitution keys. | |||
1042 | auto Parts = Name.rsplit('.'); | |||
1043 | if (Parts.second.empty()) | |||
1044 | Parts.second = Parts.first; | |||
1045 | else | |||
1046 | mangleModuleNamePrefix(Parts.first); | |||
1047 | ||||
1048 | Out << Parts.second.size() << Parts.second; | |||
1049 | ModuleSubstitutions.insert({Name, ModuleSubstitutions.size()}); | |||
1050 | } | |||
1051 | ||||
1052 | void CXXNameMangler::mangleTemplateName(const TemplateDecl *TD, | |||
1053 | const TemplateArgument *TemplateArgs, | |||
1054 | unsigned NumTemplateArgs) { | |||
1055 | const DeclContext *DC = IgnoreLinkageSpecDecls(getEffectiveDeclContext(TD)); | |||
1056 | ||||
1057 | if (DC->isTranslationUnit() || isStdNamespace(DC)) { | |||
1058 | mangleUnscopedTemplateName(TD, nullptr); | |||
1059 | mangleTemplateArgs(asTemplateName(TD), TemplateArgs, NumTemplateArgs); | |||
1060 | } else { | |||
1061 | mangleNestedName(TD, TemplateArgs, NumTemplateArgs); | |||
1062 | } | |||
1063 | } | |||
1064 | ||||
1065 | void CXXNameMangler::mangleUnscopedName(GlobalDecl GD, | |||
1066 | const AbiTagList *AdditionalAbiTags) { | |||
1067 | const NamedDecl *ND = cast<NamedDecl>(GD.getDecl()); | |||
1068 | // <unscoped-name> ::= <unqualified-name> | |||
1069 | // ::= St <unqualified-name> # ::std:: | |||
1070 | ||||
1071 | if (isStdNamespace(IgnoreLinkageSpecDecls(getEffectiveDeclContext(ND)))) | |||
1072 | Out << "St"; | |||
1073 | ||||
1074 | mangleUnqualifiedName(GD, AdditionalAbiTags); | |||
1075 | } | |||
1076 | ||||
1077 | void CXXNameMangler::mangleUnscopedTemplateName( | |||
1078 | GlobalDecl GD, const AbiTagList *AdditionalAbiTags) { | |||
1079 | const TemplateDecl *ND = cast<TemplateDecl>(GD.getDecl()); | |||
1080 | // <unscoped-template-name> ::= <unscoped-name> | |||
1081 | // ::= <substitution> | |||
1082 | if (mangleSubstitution(ND)) | |||
1083 | return; | |||
1084 | ||||
1085 | // <template-template-param> ::= <template-param> | |||
1086 | if (const auto *TTP = dyn_cast<TemplateTemplateParmDecl>(ND)) { | |||
1087 | assert(!AdditionalAbiTags &&(static_cast <bool> (!AdditionalAbiTags && "template template param cannot have abi tags" ) ? void (0) : __assert_fail ("!AdditionalAbiTags && \"template template param cannot have abi tags\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 1088, __extension__ __PRETTY_FUNCTION__)) | |||
1088 | "template template param cannot have abi tags")(static_cast <bool> (!AdditionalAbiTags && "template template param cannot have abi tags" ) ? void (0) : __assert_fail ("!AdditionalAbiTags && \"template template param cannot have abi tags\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 1088, __extension__ __PRETTY_FUNCTION__)); | |||
1089 | mangleTemplateParameter(TTP->getDepth(), TTP->getIndex()); | |||
1090 | } else if (isa<BuiltinTemplateDecl>(ND) || isa<ConceptDecl>(ND)) { | |||
1091 | mangleUnscopedName(GD, AdditionalAbiTags); | |||
1092 | } else { | |||
1093 | mangleUnscopedName(GD.getWithDecl(ND->getTemplatedDecl()), AdditionalAbiTags); | |||
1094 | } | |||
1095 | ||||
1096 | addSubstitution(ND); | |||
1097 | } | |||
1098 | ||||
1099 | void CXXNameMangler::mangleFloat(const llvm::APFloat &f) { | |||
1100 | // ABI: | |||
1101 | // Floating-point literals are encoded using a fixed-length | |||
1102 | // lowercase hexadecimal string corresponding to the internal | |||
1103 | // representation (IEEE on Itanium), high-order bytes first, | |||
1104 | // without leading zeroes. For example: "Lf bf800000 E" is -1.0f | |||
1105 | // on Itanium. | |||
1106 | // The 'without leading zeroes' thing seems to be an editorial | |||
1107 | // mistake; see the discussion on cxx-abi-dev beginning on | |||
1108 | // 2012-01-16. | |||
1109 | ||||
1110 | // Our requirements here are just barely weird enough to justify | |||
1111 | // using a custom algorithm instead of post-processing APInt::toString(). | |||
1112 | ||||
1113 | llvm::APInt valueBits = f.bitcastToAPInt(); | |||
1114 | unsigned numCharacters = (valueBits.getBitWidth() + 3) / 4; | |||
1115 | assert(numCharacters != 0)(static_cast <bool> (numCharacters != 0) ? void (0) : __assert_fail ("numCharacters != 0", "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 1115, __extension__ __PRETTY_FUNCTION__)); | |||
1116 | ||||
1117 | // Allocate a buffer of the right number of characters. | |||
1118 | SmallVector<char, 20> buffer(numCharacters); | |||
1119 | ||||
1120 | // Fill the buffer left-to-right. | |||
1121 | for (unsigned stringIndex = 0; stringIndex != numCharacters; ++stringIndex) { | |||
1122 | // The bit-index of the next hex digit. | |||
1123 | unsigned digitBitIndex = 4 * (numCharacters - stringIndex - 1); | |||
1124 | ||||
1125 | // Project out 4 bits starting at 'digitIndex'. | |||
1126 | uint64_t hexDigit = valueBits.getRawData()[digitBitIndex / 64]; | |||
1127 | hexDigit >>= (digitBitIndex % 64); | |||
1128 | hexDigit &= 0xF; | |||
1129 | ||||
1130 | // Map that over to a lowercase hex digit. | |||
1131 | static const char charForHex[16] = { | |||
1132 | '0', '1', '2', '3', '4', '5', '6', '7', | |||
1133 | '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' | |||
1134 | }; | |||
1135 | buffer[stringIndex] = charForHex[hexDigit]; | |||
1136 | } | |||
1137 | ||||
1138 | Out.write(buffer.data(), numCharacters); | |||
1139 | } | |||
1140 | ||||
1141 | void CXXNameMangler::mangleFloatLiteral(QualType T, const llvm::APFloat &V) { | |||
1142 | Out << 'L'; | |||
1143 | mangleType(T); | |||
1144 | mangleFloat(V); | |||
1145 | Out << 'E'; | |||
1146 | } | |||
1147 | ||||
1148 | void CXXNameMangler::mangleFixedPointLiteral() { | |||
1149 | DiagnosticsEngine &Diags = Context.getDiags(); | |||
1150 | unsigned DiagID = Diags.getCustomDiagID( | |||
1151 | DiagnosticsEngine::Error, "cannot mangle fixed point literals yet"); | |||
1152 | Diags.Report(DiagID); | |||
1153 | } | |||
1154 | ||||
1155 | void CXXNameMangler::mangleNullPointer(QualType T) { | |||
1156 | // <expr-primary> ::= L <type> 0 E | |||
1157 | Out << 'L'; | |||
1158 | mangleType(T); | |||
1159 | Out << "0E"; | |||
1160 | } | |||
1161 | ||||
1162 | void CXXNameMangler::mangleNumber(const llvm::APSInt &Value) { | |||
1163 | if (Value.isSigned() && Value.isNegative()) { | |||
1164 | Out << 'n'; | |||
1165 | Value.abs().print(Out, /*signed*/ false); | |||
1166 | } else { | |||
1167 | Value.print(Out, /*signed*/ false); | |||
1168 | } | |||
1169 | } | |||
1170 | ||||
1171 | void CXXNameMangler::mangleNumber(int64_t Number) { | |||
1172 | // <number> ::= [n] <non-negative decimal integer> | |||
1173 | if (Number < 0) { | |||
1174 | Out << 'n'; | |||
1175 | Number = -Number; | |||
1176 | } | |||
1177 | ||||
1178 | Out << Number; | |||
1179 | } | |||
1180 | ||||
1181 | void CXXNameMangler::mangleCallOffset(int64_t NonVirtual, int64_t Virtual) { | |||
1182 | // <call-offset> ::= h <nv-offset> _ | |||
1183 | // ::= v <v-offset> _ | |||
1184 | // <nv-offset> ::= <offset number> # non-virtual base override | |||
1185 | // <v-offset> ::= <offset number> _ <virtual offset number> | |||
1186 | // # virtual base override, with vcall offset | |||
1187 | if (!Virtual) { | |||
1188 | Out << 'h'; | |||
1189 | mangleNumber(NonVirtual); | |||
1190 | Out << '_'; | |||
1191 | return; | |||
1192 | } | |||
1193 | ||||
1194 | Out << 'v'; | |||
1195 | mangleNumber(NonVirtual); | |||
1196 | Out << '_'; | |||
1197 | mangleNumber(Virtual); | |||
1198 | Out << '_'; | |||
1199 | } | |||
1200 | ||||
1201 | void CXXNameMangler::manglePrefix(QualType type) { | |||
1202 | if (const auto *TST = type->getAs<TemplateSpecializationType>()) { | |||
1203 | if (!mangleSubstitution(QualType(TST, 0))) { | |||
1204 | mangleTemplatePrefix(TST->getTemplateName()); | |||
1205 | ||||
1206 | // FIXME: GCC does not appear to mangle the template arguments when | |||
1207 | // the template in question is a dependent template name. Should we | |||
1208 | // emulate that badness? | |||
1209 | mangleTemplateArgs(TST->getTemplateName(), TST->getArgs(), | |||
1210 | TST->getNumArgs()); | |||
1211 | addSubstitution(QualType(TST, 0)); | |||
1212 | } | |||
1213 | } else if (const auto *DTST = | |||
1214 | type->getAs<DependentTemplateSpecializationType>()) { | |||
1215 | if (!mangleSubstitution(QualType(DTST, 0))) { | |||
1216 | TemplateName Template = getASTContext().getDependentTemplateName( | |||
1217 | DTST->getQualifier(), DTST->getIdentifier()); | |||
1218 | mangleTemplatePrefix(Template); | |||
1219 | ||||
1220 | // FIXME: GCC does not appear to mangle the template arguments when | |||
1221 | // the template in question is a dependent template name. Should we | |||
1222 | // emulate that badness? | |||
1223 | mangleTemplateArgs(Template, DTST->getArgs(), DTST->getNumArgs()); | |||
1224 | addSubstitution(QualType(DTST, 0)); | |||
1225 | } | |||
1226 | } else { | |||
1227 | // We use the QualType mangle type variant here because it handles | |||
1228 | // substitutions. | |||
1229 | mangleType(type); | |||
1230 | } | |||
1231 | } | |||
1232 | ||||
1233 | /// Mangle everything prior to the base-unresolved-name in an unresolved-name. | |||
1234 | /// | |||
1235 | /// \param recursive - true if this is being called recursively, | |||
1236 | /// i.e. if there is more prefix "to the right". | |||
1237 | void CXXNameMangler::mangleUnresolvedPrefix(NestedNameSpecifier *qualifier, | |||
1238 | bool recursive) { | |||
1239 | ||||
1240 | // x, ::x | |||
1241 | // <unresolved-name> ::= [gs] <base-unresolved-name> | |||
1242 | ||||
1243 | // T::x / decltype(p)::x | |||
1244 | // <unresolved-name> ::= sr <unresolved-type> <base-unresolved-name> | |||
1245 | ||||
1246 | // T::N::x /decltype(p)::N::x | |||
1247 | // <unresolved-name> ::= srN <unresolved-type> <unresolved-qualifier-level>+ E | |||
1248 | // <base-unresolved-name> | |||
1249 | ||||
1250 | // A::x, N::y, A<T>::z; "gs" means leading "::" | |||
1251 | // <unresolved-name> ::= [gs] sr <unresolved-qualifier-level>+ E | |||
1252 | // <base-unresolved-name> | |||
1253 | ||||
1254 | switch (qualifier->getKind()) { | |||
1255 | case NestedNameSpecifier::Global: | |||
1256 | Out << "gs"; | |||
1257 | ||||
1258 | // We want an 'sr' unless this is the entire NNS. | |||
1259 | if (recursive) | |||
1260 | Out << "sr"; | |||
1261 | ||||
1262 | // We never want an 'E' here. | |||
1263 | return; | |||
1264 | ||||
1265 | case NestedNameSpecifier::Super: | |||
1266 | llvm_unreachable("Can't mangle __super specifier")::llvm::llvm_unreachable_internal("Can't mangle __super specifier" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 1266); | |||
1267 | ||||
1268 | case NestedNameSpecifier::Namespace: | |||
1269 | if (qualifier->getPrefix()) | |||
1270 | mangleUnresolvedPrefix(qualifier->getPrefix(), | |||
1271 | /*recursive*/ true); | |||
1272 | else | |||
1273 | Out << "sr"; | |||
1274 | mangleSourceNameWithAbiTags(qualifier->getAsNamespace()); | |||
1275 | break; | |||
1276 | case NestedNameSpecifier::NamespaceAlias: | |||
1277 | if (qualifier->getPrefix()) | |||
1278 | mangleUnresolvedPrefix(qualifier->getPrefix(), | |||
1279 | /*recursive*/ true); | |||
1280 | else | |||
1281 | Out << "sr"; | |||
1282 | mangleSourceNameWithAbiTags(qualifier->getAsNamespaceAlias()); | |||
1283 | break; | |||
1284 | ||||
1285 | case NestedNameSpecifier::TypeSpec: | |||
1286 | case NestedNameSpecifier::TypeSpecWithTemplate: { | |||
1287 | const Type *type = qualifier->getAsType(); | |||
1288 | ||||
1289 | // We only want to use an unresolved-type encoding if this is one of: | |||
1290 | // - a decltype | |||
1291 | // - a template type parameter | |||
1292 | // - a template template parameter with arguments | |||
1293 | // In all of these cases, we should have no prefix. | |||
1294 | if (qualifier->getPrefix()) { | |||
1295 | mangleUnresolvedPrefix(qualifier->getPrefix(), | |||
1296 | /*recursive*/ true); | |||
1297 | } else { | |||
1298 | // Otherwise, all the cases want this. | |||
1299 | Out << "sr"; | |||
1300 | } | |||
1301 | ||||
1302 | if (mangleUnresolvedTypeOrSimpleId(QualType(type, 0), recursive ? "N" : "")) | |||
1303 | return; | |||
1304 | ||||
1305 | break; | |||
1306 | } | |||
1307 | ||||
1308 | case NestedNameSpecifier::Identifier: | |||
1309 | // Member expressions can have these without prefixes. | |||
1310 | if (qualifier->getPrefix()) | |||
1311 | mangleUnresolvedPrefix(qualifier->getPrefix(), | |||
1312 | /*recursive*/ true); | |||
1313 | else | |||
1314 | Out << "sr"; | |||
1315 | ||||
1316 | mangleSourceName(qualifier->getAsIdentifier()); | |||
1317 | // An Identifier has no type information, so we can't emit abi tags for it. | |||
1318 | break; | |||
1319 | } | |||
1320 | ||||
1321 | // If this was the innermost part of the NNS, and we fell out to | |||
1322 | // here, append an 'E'. | |||
1323 | if (!recursive) | |||
1324 | Out << 'E'; | |||
1325 | } | |||
1326 | ||||
1327 | /// Mangle an unresolved-name, which is generally used for names which | |||
1328 | /// weren't resolved to specific entities. | |||
1329 | void CXXNameMangler::mangleUnresolvedName( | |||
1330 | NestedNameSpecifier *qualifier, DeclarationName name, | |||
1331 | const TemplateArgumentLoc *TemplateArgs, unsigned NumTemplateArgs, | |||
1332 | unsigned knownArity) { | |||
1333 | if (qualifier) mangleUnresolvedPrefix(qualifier); | |||
1334 | switch (name.getNameKind()) { | |||
1335 | // <base-unresolved-name> ::= <simple-id> | |||
1336 | case DeclarationName::Identifier: | |||
1337 | mangleSourceName(name.getAsIdentifierInfo()); | |||
1338 | break; | |||
1339 | // <base-unresolved-name> ::= dn <destructor-name> | |||
1340 | case DeclarationName::CXXDestructorName: | |||
1341 | Out << "dn"; | |||
1342 | mangleUnresolvedTypeOrSimpleId(name.getCXXNameType()); | |||
1343 | break; | |||
1344 | // <base-unresolved-name> ::= on <operator-name> | |||
1345 | case DeclarationName::CXXConversionFunctionName: | |||
1346 | case DeclarationName::CXXLiteralOperatorName: | |||
1347 | case DeclarationName::CXXOperatorName: | |||
1348 | Out << "on"; | |||
1349 | mangleOperatorName(name, knownArity); | |||
1350 | break; | |||
1351 | case DeclarationName::CXXConstructorName: | |||
1352 | llvm_unreachable("Can't mangle a constructor name!")::llvm::llvm_unreachable_internal("Can't mangle a constructor name!" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 1352); | |||
1353 | case DeclarationName::CXXUsingDirective: | |||
1354 | llvm_unreachable("Can't mangle a using directive name!")::llvm::llvm_unreachable_internal("Can't mangle a using directive name!" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 1354); | |||
1355 | case DeclarationName::CXXDeductionGuideName: | |||
1356 | llvm_unreachable("Can't mangle a deduction guide name!")::llvm::llvm_unreachable_internal("Can't mangle a deduction guide name!" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 1356); | |||
1357 | case DeclarationName::ObjCMultiArgSelector: | |||
1358 | case DeclarationName::ObjCOneArgSelector: | |||
1359 | case DeclarationName::ObjCZeroArgSelector: | |||
1360 | llvm_unreachable("Can't mangle Objective-C selector names here!")::llvm::llvm_unreachable_internal("Can't mangle Objective-C selector names here!" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 1360); | |||
1361 | } | |||
1362 | ||||
1363 | // The <simple-id> and on <operator-name> productions end in an optional | |||
1364 | // <template-args>. | |||
1365 | if (TemplateArgs) | |||
1366 | mangleTemplateArgs(TemplateName(), TemplateArgs, NumTemplateArgs); | |||
1367 | } | |||
1368 | ||||
1369 | void CXXNameMangler::mangleUnqualifiedName(GlobalDecl GD, | |||
1370 | DeclarationName Name, | |||
1371 | unsigned KnownArity, | |||
1372 | const AbiTagList *AdditionalAbiTags) { | |||
1373 | const NamedDecl *ND = cast_or_null<NamedDecl>(GD.getDecl()); | |||
| ||||
1374 | unsigned Arity = KnownArity; | |||
1375 | // <unqualified-name> ::= <operator-name> | |||
1376 | // ::= <ctor-dtor-name> | |||
1377 | // ::= <source-name> | |||
1378 | switch (Name.getNameKind()) { | |||
1379 | case DeclarationName::Identifier: { | |||
1380 | const IdentifierInfo *II = Name.getAsIdentifierInfo(); | |||
1381 | ||||
1382 | // We mangle decomposition declarations as the names of their bindings. | |||
1383 | if (auto *DD = dyn_cast<DecompositionDecl>(ND)) { | |||
1384 | // FIXME: Non-standard mangling for decomposition declarations: | |||
1385 | // | |||
1386 | // <unqualified-name> ::= DC <source-name>* E | |||
1387 | // | |||
1388 | // These can never be referenced across translation units, so we do | |||
1389 | // not need a cross-vendor mangling for anything other than demanglers. | |||
1390 | // Proposed on cxx-abi-dev on 2016-08-12 | |||
1391 | Out << "DC"; | |||
1392 | for (auto *BD : DD->bindings()) | |||
1393 | mangleSourceName(BD->getDeclName().getAsIdentifierInfo()); | |||
1394 | Out << 'E'; | |||
1395 | writeAbiTags(ND, AdditionalAbiTags); | |||
1396 | break; | |||
1397 | } | |||
1398 | ||||
1399 | if (auto *GD = dyn_cast<MSGuidDecl>(ND)) { | |||
1400 | // We follow MSVC in mangling GUID declarations as if they were variables | |||
1401 | // with a particular reserved name. Continue the pretense here. | |||
1402 | SmallString<sizeof("_GUID_12345678_1234_1234_1234_1234567890ab")> GUID; | |||
1403 | llvm::raw_svector_ostream GUIDOS(GUID); | |||
1404 | Context.mangleMSGuidDecl(GD, GUIDOS); | |||
1405 | Out << GUID.size() << GUID; | |||
1406 | break; | |||
1407 | } | |||
1408 | ||||
1409 | if (auto *TPO = dyn_cast<TemplateParamObjectDecl>(ND)) { | |||
1410 | // Proposed in https://github.com/itanium-cxx-abi/cxx-abi/issues/63. | |||
1411 | Out << "TA"; | |||
1412 | mangleValueInTemplateArg(TPO->getType().getUnqualifiedType(), | |||
1413 | TPO->getValue(), /*TopLevel=*/true); | |||
1414 | break; | |||
1415 | } | |||
1416 | ||||
1417 | if (II) { | |||
1418 | // Match GCC's naming convention for internal linkage symbols, for | |||
1419 | // symbols that are not actually visible outside of this TU. GCC | |||
1420 | // distinguishes between internal and external linkage symbols in | |||
1421 | // its mangling, to support cases like this that were valid C++ prior | |||
1422 | // to DR426: | |||
1423 | // | |||
1424 | // void test() { extern void foo(); } | |||
1425 | // static void foo(); | |||
1426 | // | |||
1427 | // Don't bother with the L marker for names in anonymous namespaces; the | |||
1428 | // 12_GLOBAL__N_1 mangling is quite sufficient there, and this better | |||
1429 | // matches GCC anyway, because GCC does not treat anonymous namespaces as | |||
1430 | // implying internal linkage. | |||
1431 | if (isInternalLinkageDecl(ND)) | |||
1432 | Out << 'L'; | |||
1433 | ||||
1434 | auto *FD = dyn_cast<FunctionDecl>(ND); | |||
1435 | bool IsRegCall = FD && | |||
1436 | FD->getType()->castAs<FunctionType>()->getCallConv() == | |||
1437 | clang::CC_X86RegCall; | |||
1438 | bool IsDeviceStub = | |||
1439 | FD && FD->hasAttr<CUDAGlobalAttr>() && | |||
1440 | GD.getKernelReferenceKind() == KernelReferenceKind::Stub; | |||
1441 | if (IsDeviceStub) | |||
1442 | mangleDeviceStubName(II); | |||
1443 | else if (IsRegCall) | |||
1444 | mangleRegCallName(II); | |||
1445 | else | |||
1446 | mangleSourceName(II); | |||
1447 | ||||
1448 | writeAbiTags(ND, AdditionalAbiTags); | |||
1449 | break; | |||
1450 | } | |||
1451 | ||||
1452 | // Otherwise, an anonymous entity. We must have a declaration. | |||
1453 | assert(ND && "mangling empty name without declaration")(static_cast <bool> (ND && "mangling empty name without declaration" ) ? void (0) : __assert_fail ("ND && \"mangling empty name without declaration\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 1453, __extension__ __PRETTY_FUNCTION__)); | |||
1454 | ||||
1455 | if (const NamespaceDecl *NS = dyn_cast<NamespaceDecl>(ND)) { | |||
1456 | if (NS->isAnonymousNamespace()) { | |||
1457 | // This is how gcc mangles these names. | |||
1458 | Out << "12_GLOBAL__N_1"; | |||
1459 | break; | |||
1460 | } | |||
1461 | } | |||
1462 | ||||
1463 | if (const VarDecl *VD = dyn_cast<VarDecl>(ND)) { | |||
1464 | // We must have an anonymous union or struct declaration. | |||
1465 | const RecordDecl *RD = VD->getType()->castAs<RecordType>()->getDecl(); | |||
1466 | ||||
1467 | // Itanium C++ ABI 5.1.2: | |||
1468 | // | |||
1469 | // For the purposes of mangling, the name of an anonymous union is | |||
1470 | // considered to be the name of the first named data member found by a | |||
1471 | // pre-order, depth-first, declaration-order walk of the data members of | |||
1472 | // the anonymous union. If there is no such data member (i.e., if all of | |||
1473 | // the data members in the union are unnamed), then there is no way for | |||
1474 | // a program to refer to the anonymous union, and there is therefore no | |||
1475 | // need to mangle its name. | |||
1476 | assert(RD->isAnonymousStructOrUnion()(static_cast <bool> (RD->isAnonymousStructOrUnion() && "Expected anonymous struct or union!") ? void (0) : __assert_fail ("RD->isAnonymousStructOrUnion() && \"Expected anonymous struct or union!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 1477, __extension__ __PRETTY_FUNCTION__)) | |||
1477 | && "Expected anonymous struct or union!")(static_cast <bool> (RD->isAnonymousStructOrUnion() && "Expected anonymous struct or union!") ? void (0) : __assert_fail ("RD->isAnonymousStructOrUnion() && \"Expected anonymous struct or union!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 1477, __extension__ __PRETTY_FUNCTION__)); | |||
1478 | const FieldDecl *FD = RD->findFirstNamedDataMember(); | |||
1479 | ||||
1480 | // It's actually possible for various reasons for us to get here | |||
1481 | // with an empty anonymous struct / union. Fortunately, it | |||
1482 | // doesn't really matter what name we generate. | |||
1483 | if (!FD) break; | |||
1484 | assert(FD->getIdentifier() && "Data member name isn't an identifier!")(static_cast <bool> (FD->getIdentifier() && "Data member name isn't an identifier!" ) ? void (0) : __assert_fail ("FD->getIdentifier() && \"Data member name isn't an identifier!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 1484, __extension__ __PRETTY_FUNCTION__)); | |||
1485 | ||||
1486 | mangleSourceName(FD->getIdentifier()); | |||
1487 | // Not emitting abi tags: internal name anyway. | |||
1488 | break; | |||
1489 | } | |||
1490 | ||||
1491 | // Class extensions have no name as a category, and it's possible | |||
1492 | // for them to be the semantic parent of certain declarations | |||
1493 | // (primarily, tag decls defined within declarations). Such | |||
1494 | // declarations will always have internal linkage, so the name | |||
1495 | // doesn't really matter, but we shouldn't crash on them. For | |||
1496 | // safety, just handle all ObjC containers here. | |||
1497 | if (isa<ObjCContainerDecl>(ND)) | |||
1498 | break; | |||
1499 | ||||
1500 | // We must have an anonymous struct. | |||
1501 | const TagDecl *TD = cast<TagDecl>(ND); | |||
1502 | if (const TypedefNameDecl *D = TD->getTypedefNameForAnonDecl()) { | |||
1503 | assert(TD->getDeclContext() == D->getDeclContext() &&(static_cast <bool> (TD->getDeclContext() == D->getDeclContext () && "Typedef should not be in another decl context!" ) ? void (0) : __assert_fail ("TD->getDeclContext() == D->getDeclContext() && \"Typedef should not be in another decl context!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 1504, __extension__ __PRETTY_FUNCTION__)) | |||
1504 | "Typedef should not be in another decl context!")(static_cast <bool> (TD->getDeclContext() == D->getDeclContext () && "Typedef should not be in another decl context!" ) ? void (0) : __assert_fail ("TD->getDeclContext() == D->getDeclContext() && \"Typedef should not be in another decl context!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 1504, __extension__ __PRETTY_FUNCTION__)); | |||
1505 | assert(D->getDeclName().getAsIdentifierInfo() &&(static_cast <bool> (D->getDeclName().getAsIdentifierInfo () && "Typedef was not named!") ? void (0) : __assert_fail ("D->getDeclName().getAsIdentifierInfo() && \"Typedef was not named!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 1506, __extension__ __PRETTY_FUNCTION__)) | |||
1506 | "Typedef was not named!")(static_cast <bool> (D->getDeclName().getAsIdentifierInfo () && "Typedef was not named!") ? void (0) : __assert_fail ("D->getDeclName().getAsIdentifierInfo() && \"Typedef was not named!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 1506, __extension__ __PRETTY_FUNCTION__)); | |||
1507 | mangleSourceName(D->getDeclName().getAsIdentifierInfo()); | |||
1508 | assert(!AdditionalAbiTags && "Type cannot have additional abi tags")(static_cast <bool> (!AdditionalAbiTags && "Type cannot have additional abi tags" ) ? void (0) : __assert_fail ("!AdditionalAbiTags && \"Type cannot have additional abi tags\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 1508, __extension__ __PRETTY_FUNCTION__)); | |||
1509 | // Explicit abi tags are still possible; take from underlying type, not | |||
1510 | // from typedef. | |||
1511 | writeAbiTags(TD, nullptr); | |||
1512 | break; | |||
1513 | } | |||
1514 | ||||
1515 | // <unnamed-type-name> ::= <closure-type-name> | |||
1516 | // | |||
1517 | // <closure-type-name> ::= Ul <lambda-sig> E [ <nonnegative number> ] _ | |||
1518 | // <lambda-sig> ::= <template-param-decl>* <parameter-type>+ | |||
1519 | // # Parameter types or 'v' for 'void'. | |||
1520 | if (const CXXRecordDecl *Record = dyn_cast<CXXRecordDecl>(TD)) { | |||
1521 | if (Record->isLambda() && (Record->getLambdaManglingNumber() || | |||
1522 | Context.getDiscriminatorOverride()( | |||
1523 | Context.getASTContext(), Record))) { | |||
1524 | assert(!AdditionalAbiTags &&(static_cast <bool> (!AdditionalAbiTags && "Lambda type cannot have additional abi tags" ) ? void (0) : __assert_fail ("!AdditionalAbiTags && \"Lambda type cannot have additional abi tags\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 1525, __extension__ __PRETTY_FUNCTION__)) | |||
1525 | "Lambda type cannot have additional abi tags")(static_cast <bool> (!AdditionalAbiTags && "Lambda type cannot have additional abi tags" ) ? void (0) : __assert_fail ("!AdditionalAbiTags && \"Lambda type cannot have additional abi tags\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 1525, __extension__ __PRETTY_FUNCTION__)); | |||
1526 | mangleLambda(Record); | |||
1527 | break; | |||
1528 | } | |||
1529 | } | |||
1530 | ||||
1531 | if (TD->isExternallyVisible()) { | |||
1532 | unsigned UnnamedMangle = getASTContext().getManglingNumber(TD); | |||
1533 | Out << "Ut"; | |||
1534 | if (UnnamedMangle > 1) | |||
1535 | Out << UnnamedMangle - 2; | |||
1536 | Out << '_'; | |||
1537 | writeAbiTags(TD, AdditionalAbiTags); | |||
1538 | break; | |||
1539 | } | |||
1540 | ||||
1541 | // Get a unique id for the anonymous struct. If it is not a real output | |||
1542 | // ID doesn't matter so use fake one. | |||
1543 | unsigned AnonStructId = NullOut ? 0 : Context.getAnonymousStructId(TD); | |||
1544 | ||||
1545 | // Mangle it as a source name in the form | |||
1546 | // [n] $_<id> | |||
1547 | // where n is the length of the string. | |||
1548 | SmallString<8> Str; | |||
1549 | Str += "$_"; | |||
1550 | Str += llvm::utostr(AnonStructId); | |||
1551 | ||||
1552 | Out << Str.size(); | |||
1553 | Out << Str; | |||
1554 | break; | |||
1555 | } | |||
1556 | ||||
1557 | case DeclarationName::ObjCZeroArgSelector: | |||
1558 | case DeclarationName::ObjCOneArgSelector: | |||
1559 | case DeclarationName::ObjCMultiArgSelector: | |||
1560 | llvm_unreachable("Can't mangle Objective-C selector names here!")::llvm::llvm_unreachable_internal("Can't mangle Objective-C selector names here!" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 1560); | |||
1561 | ||||
1562 | case DeclarationName::CXXConstructorName: { | |||
1563 | const CXXRecordDecl *InheritedFrom = nullptr; | |||
1564 | TemplateName InheritedTemplateName; | |||
1565 | const TemplateArgumentList *InheritedTemplateArgs = nullptr; | |||
1566 | if (auto Inherited = | |||
1567 | cast<CXXConstructorDecl>(ND)->getInheritedConstructor()) { | |||
1568 | InheritedFrom = Inherited.getConstructor()->getParent(); | |||
1569 | InheritedTemplateName = | |||
1570 | TemplateName(Inherited.getConstructor()->getPrimaryTemplate()); | |||
1571 | InheritedTemplateArgs = | |||
1572 | Inherited.getConstructor()->getTemplateSpecializationArgs(); | |||
1573 | } | |||
1574 | ||||
1575 | if (ND == Structor) | |||
1576 | // If the named decl is the C++ constructor we're mangling, use the type | |||
1577 | // we were given. | |||
1578 | mangleCXXCtorType(static_cast<CXXCtorType>(StructorType), InheritedFrom); | |||
1579 | else | |||
1580 | // Otherwise, use the complete constructor name. This is relevant if a | |||
1581 | // class with a constructor is declared within a constructor. | |||
1582 | mangleCXXCtorType(Ctor_Complete, InheritedFrom); | |||
1583 | ||||
1584 | // FIXME: The template arguments are part of the enclosing prefix or | |||
1585 | // nested-name, but it's more convenient to mangle them here. | |||
1586 | if (InheritedTemplateArgs) | |||
1587 | mangleTemplateArgs(InheritedTemplateName, *InheritedTemplateArgs); | |||
1588 | ||||
1589 | writeAbiTags(ND, AdditionalAbiTags); | |||
1590 | break; | |||
1591 | } | |||
1592 | ||||
1593 | case DeclarationName::CXXDestructorName: | |||
1594 | if (ND == Structor) | |||
1595 | // If the named decl is the C++ destructor we're mangling, use the type we | |||
1596 | // were given. | |||
1597 | mangleCXXDtorType(static_cast<CXXDtorType>(StructorType)); | |||
1598 | else | |||
1599 | // Otherwise, use the complete destructor name. This is relevant if a | |||
1600 | // class with a destructor is declared within a destructor. | |||
1601 | mangleCXXDtorType(Dtor_Complete); | |||
1602 | writeAbiTags(ND, AdditionalAbiTags); | |||
1603 | break; | |||
1604 | ||||
1605 | case DeclarationName::CXXOperatorName: | |||
1606 | if (ND && Arity == UnknownArity) { | |||
1607 | Arity = cast<FunctionDecl>(ND)->getNumParams(); | |||
1608 | ||||
1609 | // If we have a member function, we need to include the 'this' pointer. | |||
1610 | if (const auto *MD = dyn_cast<CXXMethodDecl>(ND)) | |||
1611 | if (!MD->isStatic()) | |||
1612 | Arity++; | |||
1613 | } | |||
1614 | LLVM_FALLTHROUGH[[gnu::fallthrough]]; | |||
1615 | case DeclarationName::CXXConversionFunctionName: | |||
1616 | case DeclarationName::CXXLiteralOperatorName: | |||
1617 | mangleOperatorName(Name, Arity); | |||
1618 | writeAbiTags(ND, AdditionalAbiTags); | |||
1619 | break; | |||
1620 | ||||
1621 | case DeclarationName::CXXDeductionGuideName: | |||
1622 | llvm_unreachable("Can't mangle a deduction guide name!")::llvm::llvm_unreachable_internal("Can't mangle a deduction guide name!" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 1622); | |||
1623 | ||||
1624 | case DeclarationName::CXXUsingDirective: | |||
1625 | llvm_unreachable("Can't mangle a using directive name!")::llvm::llvm_unreachable_internal("Can't mangle a using directive name!" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 1625); | |||
1626 | } | |||
1627 | } | |||
1628 | ||||
1629 | void CXXNameMangler::mangleRegCallName(const IdentifierInfo *II) { | |||
1630 | // <source-name> ::= <positive length number> __regcall3__ <identifier> | |||
1631 | // <number> ::= [n] <non-negative decimal integer> | |||
1632 | // <identifier> ::= <unqualified source code identifier> | |||
1633 | Out << II->getLength() + sizeof("__regcall3__") - 1 << "__regcall3__" | |||
1634 | << II->getName(); | |||
1635 | } | |||
1636 | ||||
1637 | void CXXNameMangler::mangleDeviceStubName(const IdentifierInfo *II) { | |||
1638 | // <source-name> ::= <positive length number> __device_stub__ <identifier> | |||
1639 | // <number> ::= [n] <non-negative decimal integer> | |||
1640 | // <identifier> ::= <unqualified source code identifier> | |||
1641 | Out << II->getLength() + sizeof("__device_stub__") - 1 << "__device_stub__" | |||
1642 | << II->getName(); | |||
1643 | } | |||
1644 | ||||
1645 | void CXXNameMangler::mangleSourceName(const IdentifierInfo *II) { | |||
1646 | // <source-name> ::= <positive length number> <identifier> | |||
1647 | // <number> ::= [n] <non-negative decimal integer> | |||
1648 | // <identifier> ::= <unqualified source code identifier> | |||
1649 | Out << II->getLength() << II->getName(); | |||
1650 | } | |||
1651 | ||||
1652 | void CXXNameMangler::mangleNestedName(GlobalDecl GD, | |||
1653 | const DeclContext *DC, | |||
1654 | const AbiTagList *AdditionalAbiTags, | |||
1655 | bool NoFunction) { | |||
1656 | const NamedDecl *ND = cast<NamedDecl>(GD.getDecl()); | |||
1657 | // <nested-name> | |||
1658 | // ::= N [<CV-qualifiers>] [<ref-qualifier>] <prefix> <unqualified-name> E | |||
1659 | // ::= N [<CV-qualifiers>] [<ref-qualifier>] <template-prefix> | |||
1660 | // <template-args> E | |||
1661 | ||||
1662 | Out << 'N'; | |||
1663 | if (const CXXMethodDecl *Method = dyn_cast<CXXMethodDecl>(ND)) { | |||
1664 | Qualifiers MethodQuals = Method->getMethodQualifiers(); | |||
1665 | // We do not consider restrict a distinguishing attribute for overloading | |||
1666 | // purposes so we must not mangle it. | |||
1667 | MethodQuals.removeRestrict(); | |||
1668 | mangleQualifiers(MethodQuals); | |||
1669 | mangleRefQualifier(Method->getRefQualifier()); | |||
1670 | } | |||
1671 | ||||
1672 | // Check if we have a template. | |||
1673 | const TemplateArgumentList *TemplateArgs = nullptr; | |||
1674 | if (GlobalDecl TD = isTemplate(GD, TemplateArgs)) { | |||
1675 | mangleTemplatePrefix(TD, NoFunction); | |||
1676 | mangleTemplateArgs(asTemplateName(TD), *TemplateArgs); | |||
1677 | } else { | |||
1678 | manglePrefix(DC, NoFunction); | |||
1679 | mangleUnqualifiedName(GD, AdditionalAbiTags); | |||
1680 | } | |||
1681 | ||||
1682 | Out << 'E'; | |||
1683 | } | |||
1684 | void CXXNameMangler::mangleNestedName(const TemplateDecl *TD, | |||
1685 | const TemplateArgument *TemplateArgs, | |||
1686 | unsigned NumTemplateArgs) { | |||
1687 | // <nested-name> ::= N [<CV-qualifiers>] <template-prefix> <template-args> E | |||
1688 | ||||
1689 | Out << 'N'; | |||
1690 | ||||
1691 | mangleTemplatePrefix(TD); | |||
1692 | mangleTemplateArgs(asTemplateName(TD), TemplateArgs, NumTemplateArgs); | |||
1693 | ||||
1694 | Out << 'E'; | |||
1695 | } | |||
1696 | ||||
1697 | void CXXNameMangler::mangleNestedNameWithClosurePrefix( | |||
1698 | GlobalDecl GD, const NamedDecl *PrefixND, | |||
1699 | const AbiTagList *AdditionalAbiTags) { | |||
1700 | // A <closure-prefix> represents a variable or field, not a regular | |||
1701 | // DeclContext, so needs special handling. In this case we're mangling a | |||
1702 | // limited form of <nested-name>: | |||
1703 | // | |||
1704 | // <nested-name> ::= N <closure-prefix> <closure-type-name> E | |||
1705 | ||||
1706 | Out << 'N'; | |||
1707 | ||||
1708 | mangleClosurePrefix(PrefixND); | |||
1709 | mangleUnqualifiedName(GD, AdditionalAbiTags); | |||
1710 | ||||
1711 | Out << 'E'; | |||
1712 | } | |||
1713 | ||||
1714 | static GlobalDecl getParentOfLocalEntity(const DeclContext *DC) { | |||
1715 | GlobalDecl GD; | |||
1716 | // The Itanium spec says: | |||
1717 | // For entities in constructors and destructors, the mangling of the | |||
1718 | // complete object constructor or destructor is used as the base function | |||
1719 | // name, i.e. the C1 or D1 version. | |||
1720 | if (auto *CD = dyn_cast<CXXConstructorDecl>(DC)) | |||
1721 | GD = GlobalDecl(CD, Ctor_Complete); | |||
1722 | else if (auto *DD = dyn_cast<CXXDestructorDecl>(DC)) | |||
1723 | GD = GlobalDecl(DD, Dtor_Complete); | |||
1724 | else | |||
1725 | GD = GlobalDecl(cast<FunctionDecl>(DC)); | |||
1726 | return GD; | |||
1727 | } | |||
1728 | ||||
1729 | void CXXNameMangler::mangleLocalName(GlobalDecl GD, | |||
1730 | const AbiTagList *AdditionalAbiTags) { | |||
1731 | const Decl *D = GD.getDecl(); | |||
1732 | // <local-name> := Z <function encoding> E <entity name> [<discriminator>] | |||
1733 | // := Z <function encoding> E s [<discriminator>] | |||
1734 | // <local-name> := Z <function encoding> E d [ <parameter number> ] | |||
1735 | // _ <entity name> | |||
1736 | // <discriminator> := _ <non-negative number> | |||
1737 | assert(isa<NamedDecl>(D) || isa<BlockDecl>(D))(static_cast <bool> (isa<NamedDecl>(D) || isa< BlockDecl>(D)) ? void (0) : __assert_fail ("isa<NamedDecl>(D) || isa<BlockDecl>(D)" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 1737, __extension__ __PRETTY_FUNCTION__)); | |||
1738 | const RecordDecl *RD = GetLocalClassDecl(D); | |||
1739 | const DeclContext *DC = getEffectiveDeclContext(RD ? RD : D); | |||
1740 | ||||
1741 | Out << 'Z'; | |||
1742 | ||||
1743 | { | |||
1744 | AbiTagState LocalAbiTags(AbiTags); | |||
1745 | ||||
1746 | if (const ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(DC)) | |||
1747 | mangleObjCMethodName(MD); | |||
1748 | else if (const BlockDecl *BD = dyn_cast<BlockDecl>(DC)) | |||
1749 | mangleBlockForPrefix(BD); | |||
1750 | else | |||
1751 | mangleFunctionEncoding(getParentOfLocalEntity(DC)); | |||
1752 | ||||
1753 | // Implicit ABI tags (from namespace) are not available in the following | |||
1754 | // entity; reset to actually emitted tags, which are available. | |||
1755 | LocalAbiTags.setUsedAbiTags(LocalAbiTags.getEmittedAbiTags()); | |||
1756 | } | |||
1757 | ||||
1758 | Out << 'E'; | |||
1759 | ||||
1760 | // GCC 5.3.0 doesn't emit derived ABI tags for local names but that seems to | |||
1761 | // be a bug that is fixed in trunk. | |||
1762 | ||||
1763 | if (RD) { | |||
1764 | // The parameter number is omitted for the last parameter, 0 for the | |||
1765 | // second-to-last parameter, 1 for the third-to-last parameter, etc. The | |||
1766 | // <entity name> will of course contain a <closure-type-name>: Its | |||
1767 | // numbering will be local to the particular argument in which it appears | |||
1768 | // -- other default arguments do not affect its encoding. | |||
1769 | const CXXRecordDecl *CXXRD = dyn_cast<CXXRecordDecl>(RD); | |||
1770 | if (CXXRD && CXXRD->isLambda()) { | |||
1771 | if (const ParmVarDecl *Parm | |||
1772 | = dyn_cast_or_null<ParmVarDecl>(CXXRD->getLambdaContextDecl())) { | |||
1773 | if (const FunctionDecl *Func | |||
1774 | = dyn_cast<FunctionDecl>(Parm->getDeclContext())) { | |||
1775 | Out << 'd'; | |||
1776 | unsigned Num = Func->getNumParams() - Parm->getFunctionScopeIndex(); | |||
1777 | if (Num > 1) | |||
1778 | mangleNumber(Num - 2); | |||
1779 | Out << '_'; | |||
1780 | } | |||
1781 | } | |||
1782 | } | |||
1783 | ||||
1784 | // Mangle the name relative to the closest enclosing function. | |||
1785 | // equality ok because RD derived from ND above | |||
1786 | if (D == RD) { | |||
1787 | mangleUnqualifiedName(RD, AdditionalAbiTags); | |||
1788 | } else if (const BlockDecl *BD = dyn_cast<BlockDecl>(D)) { | |||
1789 | if (const NamedDecl *PrefixND = getClosurePrefix(BD)) | |||
1790 | mangleClosurePrefix(PrefixND, true /*NoFunction*/); | |||
1791 | else | |||
1792 | manglePrefix(getEffectiveDeclContext(BD), true /*NoFunction*/); | |||
1793 | assert(!AdditionalAbiTags && "Block cannot have additional abi tags")(static_cast <bool> (!AdditionalAbiTags && "Block cannot have additional abi tags" ) ? void (0) : __assert_fail ("!AdditionalAbiTags && \"Block cannot have additional abi tags\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 1793, __extension__ __PRETTY_FUNCTION__)); | |||
1794 | mangleUnqualifiedBlock(BD); | |||
1795 | } else { | |||
1796 | const NamedDecl *ND = cast<NamedDecl>(D); | |||
1797 | mangleNestedName(GD, getEffectiveDeclContext(ND), AdditionalAbiTags, | |||
1798 | true /*NoFunction*/); | |||
1799 | } | |||
1800 | } else if (const BlockDecl *BD = dyn_cast<BlockDecl>(D)) { | |||
1801 | // Mangle a block in a default parameter; see above explanation for | |||
1802 | // lambdas. | |||
1803 | if (const ParmVarDecl *Parm | |||
1804 | = dyn_cast_or_null<ParmVarDecl>(BD->getBlockManglingContextDecl())) { | |||
1805 | if (const FunctionDecl *Func | |||
1806 | = dyn_cast<FunctionDecl>(Parm->getDeclContext())) { | |||
1807 | Out << 'd'; | |||
1808 | unsigned Num = Func->getNumParams() - Parm->getFunctionScopeIndex(); | |||
1809 | if (Num > 1) | |||
1810 | mangleNumber(Num - 2); | |||
1811 | Out << '_'; | |||
1812 | } | |||
1813 | } | |||
1814 | ||||
1815 | assert(!AdditionalAbiTags && "Block cannot have additional abi tags")(static_cast <bool> (!AdditionalAbiTags && "Block cannot have additional abi tags" ) ? void (0) : __assert_fail ("!AdditionalAbiTags && \"Block cannot have additional abi tags\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 1815, __extension__ __PRETTY_FUNCTION__)); | |||
1816 | mangleUnqualifiedBlock(BD); | |||
1817 | } else { | |||
1818 | mangleUnqualifiedName(GD, AdditionalAbiTags); | |||
1819 | } | |||
1820 | ||||
1821 | if (const NamedDecl *ND = dyn_cast<NamedDecl>(RD ? RD : D)) { | |||
1822 | unsigned disc; | |||
1823 | if (Context.getNextDiscriminator(ND, disc)) { | |||
1824 | if (disc < 10) | |||
1825 | Out << '_' << disc; | |||
1826 | else | |||
1827 | Out << "__" << disc << '_'; | |||
1828 | } | |||
1829 | } | |||
1830 | } | |||
1831 | ||||
1832 | void CXXNameMangler::mangleBlockForPrefix(const BlockDecl *Block) { | |||
1833 | if (GetLocalClassDecl(Block)) { | |||
1834 | mangleLocalName(Block, /* AdditionalAbiTags */ nullptr); | |||
1835 | return; | |||
1836 | } | |||
1837 | const DeclContext *DC = getEffectiveDeclContext(Block); | |||
1838 | if (isLocalContainerContext(DC)) { | |||
1839 | mangleLocalName(Block, /* AdditionalAbiTags */ nullptr); | |||
1840 | return; | |||
1841 | } | |||
1842 | if (const NamedDecl *PrefixND = getClosurePrefix(Block)) | |||
1843 | mangleClosurePrefix(PrefixND); | |||
1844 | else | |||
1845 | manglePrefix(DC); | |||
1846 | mangleUnqualifiedBlock(Block); | |||
1847 | } | |||
1848 | ||||
1849 | void CXXNameMangler::mangleUnqualifiedBlock(const BlockDecl *Block) { | |||
1850 | // When trying to be ABI-compatibility with clang 12 and before, mangle a | |||
1851 | // <data-member-prefix> now, with no substitutions and no <template-args>. | |||
1852 | if (Decl *Context = Block->getBlockManglingContextDecl()) { | |||
1853 | if (getASTContext().getLangOpts().getClangABICompat() <= | |||
1854 | LangOptions::ClangABI::Ver12 && | |||
1855 | (isa<VarDecl>(Context) || isa<FieldDecl>(Context)) && | |||
1856 | Context->getDeclContext()->isRecord()) { | |||
1857 | const auto *ND = cast<NamedDecl>(Context); | |||
1858 | if (ND->getIdentifier()) { | |||
1859 | mangleSourceNameWithAbiTags(ND); | |||
1860 | Out << 'M'; | |||
1861 | } | |||
1862 | } | |||
1863 | } | |||
1864 | ||||
1865 | // If we have a block mangling number, use it. | |||
1866 | unsigned Number = Block->getBlockManglingNumber(); | |||
1867 | // Otherwise, just make up a number. It doesn't matter what it is because | |||
1868 | // the symbol in question isn't externally visible. | |||
1869 | if (!Number) | |||
1870 | Number = Context.getBlockId(Block, false); | |||
1871 | else { | |||
1872 | // Stored mangling numbers are 1-based. | |||
1873 | --Number; | |||
1874 | } | |||
1875 | Out << "Ub"; | |||
1876 | if (Number > 0) | |||
1877 | Out << Number - 1; | |||
1878 | Out << '_'; | |||
1879 | } | |||
1880 | ||||
1881 | // <template-param-decl> | |||
1882 | // ::= Ty # template type parameter | |||
1883 | // ::= Tn <type> # template non-type parameter | |||
1884 | // ::= Tt <template-param-decl>* E # template template parameter | |||
1885 | // ::= Tp <template-param-decl> # template parameter pack | |||
1886 | void CXXNameMangler::mangleTemplateParamDecl(const NamedDecl *Decl) { | |||
1887 | if (auto *Ty = dyn_cast<TemplateTypeParmDecl>(Decl)) { | |||
1888 | if (Ty->isParameterPack()) | |||
1889 | Out << "Tp"; | |||
1890 | Out << "Ty"; | |||
1891 | } else if (auto *Tn = dyn_cast<NonTypeTemplateParmDecl>(Decl)) { | |||
1892 | if (Tn->isExpandedParameterPack()) { | |||
1893 | for (unsigned I = 0, N = Tn->getNumExpansionTypes(); I != N; ++I) { | |||
1894 | Out << "Tn"; | |||
1895 | mangleType(Tn->getExpansionType(I)); | |||
1896 | } | |||
1897 | } else { | |||
1898 | QualType T = Tn->getType(); | |||
1899 | if (Tn->isParameterPack()) { | |||
1900 | Out << "Tp"; | |||
1901 | if (auto *PackExpansion = T->getAs<PackExpansionType>()) | |||
1902 | T = PackExpansion->getPattern(); | |||
1903 | } | |||
1904 | Out << "Tn"; | |||
1905 | mangleType(T); | |||
1906 | } | |||
1907 | } else if (auto *Tt = dyn_cast<TemplateTemplateParmDecl>(Decl)) { | |||
1908 | if (Tt->isExpandedParameterPack()) { | |||
1909 | for (unsigned I = 0, N = Tt->getNumExpansionTemplateParameters(); I != N; | |||
1910 | ++I) { | |||
1911 | Out << "Tt"; | |||
1912 | for (auto *Param : *Tt->getExpansionTemplateParameters(I)) | |||
1913 | mangleTemplateParamDecl(Param); | |||
1914 | Out << "E"; | |||
1915 | } | |||
1916 | } else { | |||
1917 | if (Tt->isParameterPack()) | |||
1918 | Out << "Tp"; | |||
1919 | Out << "Tt"; | |||
1920 | for (auto *Param : *Tt->getTemplateParameters()) | |||
1921 | mangleTemplateParamDecl(Param); | |||
1922 | Out << "E"; | |||
1923 | } | |||
1924 | } | |||
1925 | } | |||
1926 | ||||
1927 | void CXXNameMangler::mangleLambda(const CXXRecordDecl *Lambda) { | |||
1928 | // When trying to be ABI-compatibility with clang 12 and before, mangle a | |||
1929 | // <data-member-prefix> now, with no substitutions. | |||
1930 | if (Decl *Context = Lambda->getLambdaContextDecl()) { | |||
1931 | if (getASTContext().getLangOpts().getClangABICompat() <= | |||
1932 | LangOptions::ClangABI::Ver12 && | |||
1933 | (isa<VarDecl>(Context) || isa<FieldDecl>(Context)) && | |||
1934 | !isa<ParmVarDecl>(Context)) { | |||
1935 | if (const IdentifierInfo *Name | |||
1936 | = cast<NamedDecl>(Context)->getIdentifier()) { | |||
1937 | mangleSourceName(Name); | |||
1938 | const TemplateArgumentList *TemplateArgs = nullptr; | |||
1939 | if (GlobalDecl TD = isTemplate(cast<NamedDecl>(Context), TemplateArgs)) | |||
1940 | mangleTemplateArgs(asTemplateName(TD), *TemplateArgs); | |||
1941 | Out << 'M'; | |||
1942 | } | |||
1943 | } | |||
1944 | } | |||
1945 | ||||
1946 | Out << "Ul"; | |||
1947 | mangleLambdaSig(Lambda); | |||
1948 | Out << "E"; | |||
1949 | ||||
1950 | // The number is omitted for the first closure type with a given | |||
1951 | // <lambda-sig> in a given context; it is n-2 for the nth closure type | |||
1952 | // (in lexical order) with that same <lambda-sig> and context. | |||
1953 | // | |||
1954 | // The AST keeps track of the number for us. | |||
1955 | // | |||
1956 | // In CUDA/HIP, to ensure the consistent lamba numbering between the device- | |||
1957 | // and host-side compilations, an extra device mangle context may be created | |||
1958 | // if the host-side CXX ABI has different numbering for lambda. In such case, | |||
1959 | // if the mangle context is that device-side one, use the device-side lambda | |||
1960 | // mangling number for this lambda. | |||
1961 | llvm::Optional<unsigned> DeviceNumber = | |||
1962 | Context.getDiscriminatorOverride()(Context.getASTContext(), Lambda); | |||
1963 | unsigned Number = DeviceNumber.hasValue() ? *DeviceNumber | |||
1964 | : Lambda->getLambdaManglingNumber(); | |||
1965 | ||||
1966 | assert(Number > 0 && "Lambda should be mangled as an unnamed class")(static_cast <bool> (Number > 0 && "Lambda should be mangled as an unnamed class" ) ? void (0) : __assert_fail ("Number > 0 && \"Lambda should be mangled as an unnamed class\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 1966, __extension__ __PRETTY_FUNCTION__)); | |||
1967 | if (Number > 1) | |||
1968 | mangleNumber(Number - 2); | |||
1969 | Out << '_'; | |||
1970 | } | |||
1971 | ||||
1972 | void CXXNameMangler::mangleLambdaSig(const CXXRecordDecl *Lambda) { | |||
1973 | for (auto *D : Lambda->getLambdaExplicitTemplateParameters()) | |||
1974 | mangleTemplateParamDecl(D); | |||
1975 | auto *Proto = | |||
1976 | Lambda->getLambdaTypeInfo()->getType()->castAs<FunctionProtoType>(); | |||
1977 | mangleBareFunctionType(Proto, /*MangleReturnType=*/false, | |||
1978 | Lambda->getLambdaStaticInvoker()); | |||
1979 | } | |||
1980 | ||||
1981 | void CXXNameMangler::manglePrefix(NestedNameSpecifier *qualifier) { | |||
1982 | switch (qualifier->getKind()) { | |||
1983 | case NestedNameSpecifier::Global: | |||
1984 | // nothing | |||
1985 | return; | |||
1986 | ||||
1987 | case NestedNameSpecifier::Super: | |||
1988 | llvm_unreachable("Can't mangle __super specifier")::llvm::llvm_unreachable_internal("Can't mangle __super specifier" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 1988); | |||
1989 | ||||
1990 | case NestedNameSpecifier::Namespace: | |||
1991 | mangleName(qualifier->getAsNamespace()); | |||
1992 | return; | |||
1993 | ||||
1994 | case NestedNameSpecifier::NamespaceAlias: | |||
1995 | mangleName(qualifier->getAsNamespaceAlias()->getNamespace()); | |||
1996 | return; | |||
1997 | ||||
1998 | case NestedNameSpecifier::TypeSpec: | |||
1999 | case NestedNameSpecifier::TypeSpecWithTemplate: | |||
2000 | manglePrefix(QualType(qualifier->getAsType(), 0)); | |||
2001 | return; | |||
2002 | ||||
2003 | case NestedNameSpecifier::Identifier: | |||
2004 | // Member expressions can have these without prefixes, but that | |||
2005 | // should end up in mangleUnresolvedPrefix instead. | |||
2006 | assert(qualifier->getPrefix())(static_cast <bool> (qualifier->getPrefix()) ? void ( 0) : __assert_fail ("qualifier->getPrefix()", "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 2006, __extension__ __PRETTY_FUNCTION__)); | |||
2007 | manglePrefix(qualifier->getPrefix()); | |||
2008 | ||||
2009 | mangleSourceName(qualifier->getAsIdentifier()); | |||
2010 | return; | |||
2011 | } | |||
2012 | ||||
2013 | llvm_unreachable("unexpected nested name specifier")::llvm::llvm_unreachable_internal("unexpected nested name specifier" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 2013); | |||
2014 | } | |||
2015 | ||||
2016 | void CXXNameMangler::manglePrefix(const DeclContext *DC, bool NoFunction) { | |||
2017 | // <prefix> ::= <prefix> <unqualified-name> | |||
2018 | // ::= <template-prefix> <template-args> | |||
2019 | // ::= <closure-prefix> | |||
2020 | // ::= <template-param> | |||
2021 | // ::= # empty | |||
2022 | // ::= <substitution> | |||
2023 | ||||
2024 | DC = IgnoreLinkageSpecDecls(DC); | |||
2025 | ||||
2026 | if (DC->isTranslationUnit()) | |||
2027 | return; | |||
2028 | ||||
2029 | if (NoFunction && isLocalContainerContext(DC)) | |||
2030 | return; | |||
2031 | ||||
2032 | assert(!isLocalContainerContext(DC))(static_cast <bool> (!isLocalContainerContext(DC)) ? void (0) : __assert_fail ("!isLocalContainerContext(DC)", "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 2032, __extension__ __PRETTY_FUNCTION__)); | |||
2033 | ||||
2034 | const NamedDecl *ND = cast<NamedDecl>(DC); | |||
2035 | if (mangleSubstitution(ND)) | |||
2036 | return; | |||
2037 | ||||
2038 | // Check if we have a template-prefix or a closure-prefix. | |||
2039 | const TemplateArgumentList *TemplateArgs = nullptr; | |||
2040 | if (GlobalDecl TD = isTemplate(ND, TemplateArgs)) { | |||
2041 | mangleTemplatePrefix(TD); | |||
2042 | mangleTemplateArgs(asTemplateName(TD), *TemplateArgs); | |||
2043 | } else if (const NamedDecl *PrefixND = getClosurePrefix(ND)) { | |||
2044 | mangleClosurePrefix(PrefixND, NoFunction); | |||
2045 | mangleUnqualifiedName(ND, nullptr); | |||
2046 | } else { | |||
2047 | manglePrefix(getEffectiveDeclContext(ND), NoFunction); | |||
2048 | mangleUnqualifiedName(ND, nullptr); | |||
2049 | } | |||
2050 | ||||
2051 | addSubstitution(ND); | |||
2052 | } | |||
2053 | ||||
2054 | void CXXNameMangler::mangleTemplatePrefix(TemplateName Template) { | |||
2055 | // <template-prefix> ::= <prefix> <template unqualified-name> | |||
2056 | // ::= <template-param> | |||
2057 | // ::= <substitution> | |||
2058 | if (TemplateDecl *TD = Template.getAsTemplateDecl()) | |||
2059 | return mangleTemplatePrefix(TD); | |||
2060 | ||||
2061 | DependentTemplateName *Dependent = Template.getAsDependentTemplateName(); | |||
2062 | assert(Dependent && "unexpected template name kind")(static_cast <bool> (Dependent && "unexpected template name kind" ) ? void (0) : __assert_fail ("Dependent && \"unexpected template name kind\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 2062, __extension__ __PRETTY_FUNCTION__)); | |||
2063 | ||||
2064 | // Clang 11 and before mangled the substitution for a dependent template name | |||
2065 | // after already having emitted (a substitution for) the prefix. | |||
2066 | bool Clang11Compat = getASTContext().getLangOpts().getClangABICompat() <= | |||
2067 | LangOptions::ClangABI::Ver11; | |||
2068 | if (!Clang11Compat && mangleSubstitution(Template)) | |||
2069 | return; | |||
2070 | ||||
2071 | if (NestedNameSpecifier *Qualifier = Dependent->getQualifier()) | |||
2072 | manglePrefix(Qualifier); | |||
2073 | ||||
2074 | if (Clang11Compat && mangleSubstitution(Template)) | |||
2075 | return; | |||
2076 | ||||
2077 | if (const IdentifierInfo *Id = Dependent->getIdentifier()) | |||
2078 | mangleSourceName(Id); | |||
2079 | else | |||
2080 | mangleOperatorName(Dependent->getOperator(), UnknownArity); | |||
2081 | ||||
2082 | addSubstitution(Template); | |||
2083 | } | |||
2084 | ||||
2085 | void CXXNameMangler::mangleTemplatePrefix(GlobalDecl GD, | |||
2086 | bool NoFunction) { | |||
2087 | const TemplateDecl *ND = cast<TemplateDecl>(GD.getDecl()); | |||
2088 | // <template-prefix> ::= <prefix> <template unqualified-name> | |||
2089 | // ::= <template-param> | |||
2090 | // ::= <substitution> | |||
2091 | // <template-template-param> ::= <template-param> | |||
2092 | // <substitution> | |||
2093 | ||||
2094 | if (mangleSubstitution(ND)) | |||
2095 | return; | |||
2096 | ||||
2097 | // <template-template-param> ::= <template-param> | |||
2098 | if (const auto *TTP = dyn_cast<TemplateTemplateParmDecl>(ND)) { | |||
2099 | mangleTemplateParameter(TTP->getDepth(), TTP->getIndex()); | |||
2100 | } else { | |||
2101 | manglePrefix(getEffectiveDeclContext(ND), NoFunction); | |||
2102 | if (isa<BuiltinTemplateDecl>(ND) || isa<ConceptDecl>(ND)) | |||
2103 | mangleUnqualifiedName(GD, nullptr); | |||
2104 | else | |||
2105 | mangleUnqualifiedName(GD.getWithDecl(ND->getTemplatedDecl()), nullptr); | |||
2106 | } | |||
2107 | ||||
2108 | addSubstitution(ND); | |||
2109 | } | |||
2110 | ||||
2111 | const NamedDecl *CXXNameMangler::getClosurePrefix(const Decl *ND) { | |||
2112 | if (getASTContext().getLangOpts().getClangABICompat() <= | |||
2113 | LangOptions::ClangABI::Ver12) | |||
2114 | return nullptr; | |||
2115 | ||||
2116 | const NamedDecl *Context = nullptr; | |||
2117 | if (auto *Block = dyn_cast<BlockDecl>(ND)) { | |||
2118 | Context = dyn_cast_or_null<NamedDecl>(Block->getBlockManglingContextDecl()); | |||
2119 | } else if (auto *RD = dyn_cast<CXXRecordDecl>(ND)) { | |||
2120 | if (RD->isLambda()) | |||
2121 | Context = dyn_cast_or_null<NamedDecl>(RD->getLambdaContextDecl()); | |||
2122 | } | |||
2123 | if (!Context) | |||
2124 | return nullptr; | |||
2125 | ||||
2126 | // Only lambdas within the initializer of a non-local variable or non-static | |||
2127 | // data member get a <closure-prefix>. | |||
2128 | if ((isa<VarDecl>(Context) && cast<VarDecl>(Context)->hasGlobalStorage()) || | |||
2129 | isa<FieldDecl>(Context)) | |||
2130 | return Context; | |||
2131 | ||||
2132 | return nullptr; | |||
2133 | } | |||
2134 | ||||
2135 | void CXXNameMangler::mangleClosurePrefix(const NamedDecl *ND, bool NoFunction) { | |||
2136 | // <closure-prefix> ::= [ <prefix> ] <unqualified-name> M | |||
2137 | // ::= <template-prefix> <template-args> M | |||
2138 | if (mangleSubstitution(ND)) | |||
2139 | return; | |||
2140 | ||||
2141 | const TemplateArgumentList *TemplateArgs = nullptr; | |||
2142 | if (GlobalDecl TD = isTemplate(ND, TemplateArgs)) { | |||
2143 | mangleTemplatePrefix(TD, NoFunction); | |||
2144 | mangleTemplateArgs(asTemplateName(TD), *TemplateArgs); | |||
2145 | } else { | |||
2146 | manglePrefix(getEffectiveDeclContext(ND), NoFunction); | |||
2147 | mangleUnqualifiedName(ND, nullptr); | |||
2148 | } | |||
2149 | ||||
2150 | Out << 'M'; | |||
2151 | ||||
2152 | addSubstitution(ND); | |||
2153 | } | |||
2154 | ||||
2155 | /// Mangles a template name under the production <type>. Required for | |||
2156 | /// template template arguments. | |||
2157 | /// <type> ::= <class-enum-type> | |||
2158 | /// ::= <template-param> | |||
2159 | /// ::= <substitution> | |||
2160 | void CXXNameMangler::mangleType(TemplateName TN) { | |||
2161 | if (mangleSubstitution(TN)) | |||
2162 | return; | |||
2163 | ||||
2164 | TemplateDecl *TD = nullptr; | |||
2165 | ||||
2166 | switch (TN.getKind()) { | |||
2167 | case TemplateName::QualifiedTemplate: | |||
2168 | TD = TN.getAsQualifiedTemplateName()->getTemplateDecl(); | |||
2169 | goto HaveDecl; | |||
2170 | ||||
2171 | case TemplateName::Template: | |||
2172 | TD = TN.getAsTemplateDecl(); | |||
2173 | goto HaveDecl; | |||
2174 | ||||
2175 | HaveDecl: | |||
2176 | if (auto *TTP = dyn_cast<TemplateTemplateParmDecl>(TD)) | |||
2177 | mangleTemplateParameter(TTP->getDepth(), TTP->getIndex()); | |||
2178 | else | |||
2179 | mangleName(TD); | |||
2180 | break; | |||
2181 | ||||
2182 | case TemplateName::OverloadedTemplate: | |||
2183 | case TemplateName::AssumedTemplate: | |||
2184 | llvm_unreachable("can't mangle an overloaded template name as a <type>")::llvm::llvm_unreachable_internal("can't mangle an overloaded template name as a <type>" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 2184); | |||
2185 | ||||
2186 | case TemplateName::DependentTemplate: { | |||
2187 | const DependentTemplateName *Dependent = TN.getAsDependentTemplateName(); | |||
2188 | assert(Dependent->isIdentifier())(static_cast <bool> (Dependent->isIdentifier()) ? void (0) : __assert_fail ("Dependent->isIdentifier()", "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 2188, __extension__ __PRETTY_FUNCTION__)); | |||
2189 | ||||
2190 | // <class-enum-type> ::= <name> | |||
2191 | // <name> ::= <nested-name> | |||
2192 | mangleUnresolvedPrefix(Dependent->getQualifier()); | |||
2193 | mangleSourceName(Dependent->getIdentifier()); | |||
2194 | break; | |||
2195 | } | |||
2196 | ||||
2197 | case TemplateName::SubstTemplateTemplateParm: { | |||
2198 | // Substituted template parameters are mangled as the substituted | |||
2199 | // template. This will check for the substitution twice, which is | |||
2200 | // fine, but we have to return early so that we don't try to *add* | |||
2201 | // the substitution twice. | |||
2202 | SubstTemplateTemplateParmStorage *subst | |||
2203 | = TN.getAsSubstTemplateTemplateParm(); | |||
2204 | mangleType(subst->getReplacement()); | |||
2205 | return; | |||
2206 | } | |||
2207 | ||||
2208 | case TemplateName::SubstTemplateTemplateParmPack: { | |||
2209 | // FIXME: not clear how to mangle this! | |||
2210 | // template <template <class> class T...> class A { | |||
2211 | // template <template <class> class U...> void foo(B<T,U> x...); | |||
2212 | // }; | |||
2213 | Out << "_SUBSTPACK_"; | |||
2214 | break; | |||
2215 | } | |||
2216 | } | |||
2217 | ||||
2218 | addSubstitution(TN); | |||
2219 | } | |||
2220 | ||||
2221 | bool CXXNameMangler::mangleUnresolvedTypeOrSimpleId(QualType Ty, | |||
2222 | StringRef Prefix) { | |||
2223 | // Only certain other types are valid as prefixes; enumerate them. | |||
2224 | switch (Ty->getTypeClass()) { | |||
2225 | case Type::Builtin: | |||
2226 | case Type::Complex: | |||
2227 | case Type::Adjusted: | |||
2228 | case Type::Decayed: | |||
2229 | case Type::Pointer: | |||
2230 | case Type::BlockPointer: | |||
2231 | case Type::LValueReference: | |||
2232 | case Type::RValueReference: | |||
2233 | case Type::MemberPointer: | |||
2234 | case Type::ConstantArray: | |||
2235 | case Type::IncompleteArray: | |||
2236 | case Type::VariableArray: | |||
2237 | case Type::DependentSizedArray: | |||
2238 | case Type::DependentAddressSpace: | |||
2239 | case Type::DependentVector: | |||
2240 | case Type::DependentSizedExtVector: | |||
2241 | case Type::Vector: | |||
2242 | case Type::ExtVector: | |||
2243 | case Type::ConstantMatrix: | |||
2244 | case Type::DependentSizedMatrix: | |||
2245 | case Type::FunctionProto: | |||
2246 | case Type::FunctionNoProto: | |||
2247 | case Type::Paren: | |||
2248 | case Type::Attributed: | |||
2249 | case Type::Auto: | |||
2250 | case Type::DeducedTemplateSpecialization: | |||
2251 | case Type::PackExpansion: | |||
2252 | case Type::ObjCObject: | |||
2253 | case Type::ObjCInterface: | |||
2254 | case Type::ObjCObjectPointer: | |||
2255 | case Type::ObjCTypeParam: | |||
2256 | case Type::Atomic: | |||
2257 | case Type::Pipe: | |||
2258 | case Type::MacroQualified: | |||
2259 | case Type::ExtInt: | |||
2260 | case Type::DependentExtInt: | |||
2261 | llvm_unreachable("type is illegal as a nested name specifier")::llvm::llvm_unreachable_internal("type is illegal as a nested name specifier" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 2261); | |||
2262 | ||||
2263 | case Type::SubstTemplateTypeParmPack: | |||
2264 | // FIXME: not clear how to mangle this! | |||
2265 | // template <class T...> class A { | |||
2266 | // template <class U...> void foo(decltype(T::foo(U())) x...); | |||
2267 | // }; | |||
2268 | Out << "_SUBSTPACK_"; | |||
2269 | break; | |||
2270 | ||||
2271 | // <unresolved-type> ::= <template-param> | |||
2272 | // ::= <decltype> | |||
2273 | // ::= <template-template-param> <template-args> | |||
2274 | // (this last is not official yet) | |||
2275 | case Type::TypeOfExpr: | |||
2276 | case Type::TypeOf: | |||
2277 | case Type::Decltype: | |||
2278 | case Type::TemplateTypeParm: | |||
2279 | case Type::UnaryTransform: | |||
2280 | case Type::SubstTemplateTypeParm: | |||
2281 | unresolvedType: | |||
2282 | // Some callers want a prefix before the mangled type. | |||
2283 | Out << Prefix; | |||
2284 | ||||
2285 | // This seems to do everything we want. It's not really | |||
2286 | // sanctioned for a substituted template parameter, though. | |||
2287 | mangleType(Ty); | |||
2288 | ||||
2289 | // We never want to print 'E' directly after an unresolved-type, | |||
2290 | // so we return directly. | |||
2291 | return true; | |||
2292 | ||||
2293 | case Type::Typedef: | |||
2294 | mangleSourceNameWithAbiTags(cast<TypedefType>(Ty)->getDecl()); | |||
2295 | break; | |||
2296 | ||||
2297 | case Type::UnresolvedUsing: | |||
2298 | mangleSourceNameWithAbiTags( | |||
2299 | cast<UnresolvedUsingType>(Ty)->getDecl()); | |||
2300 | break; | |||
2301 | ||||
2302 | case Type::Enum: | |||
2303 | case Type::Record: | |||
2304 | mangleSourceNameWithAbiTags(cast<TagType>(Ty)->getDecl()); | |||
2305 | break; | |||
2306 | ||||
2307 | case Type::TemplateSpecialization: { | |||
2308 | const TemplateSpecializationType *TST = | |||
2309 | cast<TemplateSpecializationType>(Ty); | |||
2310 | TemplateName TN = TST->getTemplateName(); | |||
2311 | switch (TN.getKind()) { | |||
2312 | case TemplateName::Template: | |||
2313 | case TemplateName::QualifiedTemplate: { | |||
2314 | TemplateDecl *TD = TN.getAsTemplateDecl(); | |||
2315 | ||||
2316 | // If the base is a template template parameter, this is an | |||
2317 | // unresolved type. | |||
2318 | assert(TD && "no template for template specialization type")(static_cast <bool> (TD && "no template for template specialization type" ) ? void (0) : __assert_fail ("TD && \"no template for template specialization type\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 2318, __extension__ __PRETTY_FUNCTION__)); | |||
2319 | if (isa<TemplateTemplateParmDecl>(TD)) | |||
2320 | goto unresolvedType; | |||
2321 | ||||
2322 | mangleSourceNameWithAbiTags(TD); | |||
2323 | break; | |||
2324 | } | |||
2325 | ||||
2326 | case TemplateName::OverloadedTemplate: | |||
2327 | case TemplateName::AssumedTemplate: | |||
2328 | case TemplateName::DependentTemplate: | |||
2329 | llvm_unreachable("invalid base for a template specialization type")::llvm::llvm_unreachable_internal("invalid base for a template specialization type" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 2329); | |||
2330 | ||||
2331 | case TemplateName::SubstTemplateTemplateParm: { | |||
2332 | SubstTemplateTemplateParmStorage *subst = | |||
2333 | TN.getAsSubstTemplateTemplateParm(); | |||
2334 | mangleExistingSubstitution(subst->getReplacement()); | |||
2335 | break; | |||
2336 | } | |||
2337 | ||||
2338 | case TemplateName::SubstTemplateTemplateParmPack: { | |||
2339 | // FIXME: not clear how to mangle this! | |||
2340 | // template <template <class U> class T...> class A { | |||
2341 | // template <class U...> void foo(decltype(T<U>::foo) x...); | |||
2342 | // }; | |||
2343 | Out << "_SUBSTPACK_"; | |||
2344 | break; | |||
2345 | } | |||
2346 | } | |||
2347 | ||||
2348 | // Note: we don't pass in the template name here. We are mangling the | |||
2349 | // original source-level template arguments, so we shouldn't consider | |||
2350 | // conversions to the corresponding template parameter. | |||
2351 | // FIXME: Other compilers mangle partially-resolved template arguments in | |||
2352 | // unresolved-qualifier-levels. | |||
2353 | mangleTemplateArgs(TemplateName(), TST->getArgs(), TST->getNumArgs()); | |||
2354 | break; | |||
2355 | } | |||
2356 | ||||
2357 | case Type::InjectedClassName: | |||
2358 | mangleSourceNameWithAbiTags( | |||
2359 | cast<InjectedClassNameType>(Ty)->getDecl()); | |||
2360 | break; | |||
2361 | ||||
2362 | case Type::DependentName: | |||
2363 | mangleSourceName(cast<DependentNameType>(Ty)->getIdentifier()); | |||
2364 | break; | |||
2365 | ||||
2366 | case Type::DependentTemplateSpecialization: { | |||
2367 | const DependentTemplateSpecializationType *DTST = | |||
2368 | cast<DependentTemplateSpecializationType>(Ty); | |||
2369 | TemplateName Template = getASTContext().getDependentTemplateName( | |||
2370 | DTST->getQualifier(), DTST->getIdentifier()); | |||
2371 | mangleSourceName(DTST->getIdentifier()); | |||
2372 | mangleTemplateArgs(Template, DTST->getArgs(), DTST->getNumArgs()); | |||
2373 | break; | |||
2374 | } | |||
2375 | ||||
2376 | case Type::Elaborated: | |||
2377 | return mangleUnresolvedTypeOrSimpleId( | |||
2378 | cast<ElaboratedType>(Ty)->getNamedType(), Prefix); | |||
2379 | } | |||
2380 | ||||
2381 | return false; | |||
2382 | } | |||
2383 | ||||
2384 | void CXXNameMangler::mangleOperatorName(DeclarationName Name, unsigned Arity) { | |||
2385 | switch (Name.getNameKind()) { | |||
2386 | case DeclarationName::CXXConstructorName: | |||
2387 | case DeclarationName::CXXDestructorName: | |||
2388 | case DeclarationName::CXXDeductionGuideName: | |||
2389 | case DeclarationName::CXXUsingDirective: | |||
2390 | case DeclarationName::Identifier: | |||
2391 | case DeclarationName::ObjCMultiArgSelector: | |||
2392 | case DeclarationName::ObjCOneArgSelector: | |||
2393 | case DeclarationName::ObjCZeroArgSelector: | |||
2394 | llvm_unreachable("Not an operator name")::llvm::llvm_unreachable_internal("Not an operator name", "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 2394); | |||
2395 | ||||
2396 | case DeclarationName::CXXConversionFunctionName: | |||
2397 | // <operator-name> ::= cv <type> # (cast) | |||
2398 | Out << "cv"; | |||
2399 | mangleType(Name.getCXXNameType()); | |||
2400 | break; | |||
2401 | ||||
2402 | case DeclarationName::CXXLiteralOperatorName: | |||
2403 | Out << "li"; | |||
2404 | mangleSourceName(Name.getCXXLiteralIdentifier()); | |||
2405 | return; | |||
2406 | ||||
2407 | case DeclarationName::CXXOperatorName: | |||
2408 | mangleOperatorName(Name.getCXXOverloadedOperator(), Arity); | |||
2409 | break; | |||
2410 | } | |||
2411 | } | |||
2412 | ||||
2413 | void | |||
2414 | CXXNameMangler::mangleOperatorName(OverloadedOperatorKind OO, unsigned Arity) { | |||
2415 | switch (OO) { | |||
2416 | // <operator-name> ::= nw # new | |||
2417 | case OO_New: Out << "nw"; break; | |||
2418 | // ::= na # new[] | |||
2419 | case OO_Array_New: Out << "na"; break; | |||
2420 | // ::= dl # delete | |||
2421 | case OO_Delete: Out << "dl"; break; | |||
2422 | // ::= da # delete[] | |||
2423 | case OO_Array_Delete: Out << "da"; break; | |||
2424 | // ::= ps # + (unary) | |||
2425 | // ::= pl # + (binary or unknown) | |||
2426 | case OO_Plus: | |||
2427 | Out << (Arity == 1? "ps" : "pl"); break; | |||
2428 | // ::= ng # - (unary) | |||
2429 | // ::= mi # - (binary or unknown) | |||
2430 | case OO_Minus: | |||
2431 | Out << (Arity == 1? "ng" : "mi"); break; | |||
2432 | // ::= ad # & (unary) | |||
2433 | // ::= an # & (binary or unknown) | |||
2434 | case OO_Amp: | |||
2435 | Out << (Arity == 1? "ad" : "an"); break; | |||
2436 | // ::= de # * (unary) | |||
2437 | // ::= ml # * (binary or unknown) | |||
2438 | case OO_Star: | |||
2439 | // Use binary when unknown. | |||
2440 | Out << (Arity == 1? "de" : "ml"); break; | |||
2441 | // ::= co # ~ | |||
2442 | case OO_Tilde: Out << "co"; break; | |||
2443 | // ::= dv # / | |||
2444 | case OO_Slash: Out << "dv"; break; | |||
2445 | // ::= rm # % | |||
2446 | case OO_Percent: Out << "rm"; break; | |||
2447 | // ::= or # | | |||
2448 | case OO_Pipe: Out << "or"; break; | |||
2449 | // ::= eo # ^ | |||
2450 | case OO_Caret: Out << "eo"; break; | |||
2451 | // ::= aS # = | |||
2452 | case OO_Equal: Out << "aS"; break; | |||
2453 | // ::= pL # += | |||
2454 | case OO_PlusEqual: Out << "pL"; break; | |||
2455 | // ::= mI # -= | |||
2456 | case OO_MinusEqual: Out << "mI"; break; | |||
2457 | // ::= mL # *= | |||
2458 | case OO_StarEqual: Out << "mL"; break; | |||
2459 | // ::= dV # /= | |||
2460 | case OO_SlashEqual: Out << "dV"; break; | |||
2461 | // ::= rM # %= | |||
2462 | case OO_PercentEqual: Out << "rM"; break; | |||
2463 | // ::= aN # &= | |||
2464 | case OO_AmpEqual: Out << "aN"; break; | |||
2465 | // ::= oR # |= | |||
2466 | case OO_PipeEqual: Out << "oR"; break; | |||
2467 | // ::= eO # ^= | |||
2468 | case OO_CaretEqual: Out << "eO"; break; | |||
2469 | // ::= ls # << | |||
2470 | case OO_LessLess: Out << "ls"; break; | |||
2471 | // ::= rs # >> | |||
2472 | case OO_GreaterGreater: Out << "rs"; break; | |||
2473 | // ::= lS # <<= | |||
2474 | case OO_LessLessEqual: Out << "lS"; break; | |||
2475 | // ::= rS # >>= | |||
2476 | case OO_GreaterGreaterEqual: Out << "rS"; break; | |||
2477 | // ::= eq # == | |||
2478 | case OO_EqualEqual: Out << "eq"; break; | |||
2479 | // ::= ne # != | |||
2480 | case OO_ExclaimEqual: Out << "ne"; break; | |||
2481 | // ::= lt # < | |||
2482 | case OO_Less: Out << "lt"; break; | |||
2483 | // ::= gt # > | |||
2484 | case OO_Greater: Out << "gt"; break; | |||
2485 | // ::= le # <= | |||
2486 | case OO_LessEqual: Out << "le"; break; | |||
2487 | // ::= ge # >= | |||
2488 | case OO_GreaterEqual: Out << "ge"; break; | |||
2489 | // ::= nt # ! | |||
2490 | case OO_Exclaim: Out << "nt"; break; | |||
2491 | // ::= aa # && | |||
2492 | case OO_AmpAmp: Out << "aa"; break; | |||
2493 | // ::= oo # || | |||
2494 | case OO_PipePipe: Out << "oo"; break; | |||
2495 | // ::= pp # ++ | |||
2496 | case OO_PlusPlus: Out << "pp"; break; | |||
2497 | // ::= mm # -- | |||
2498 | case OO_MinusMinus: Out << "mm"; break; | |||
2499 | // ::= cm # , | |||
2500 | case OO_Comma: Out << "cm"; break; | |||
2501 | // ::= pm # ->* | |||
2502 | case OO_ArrowStar: Out << "pm"; break; | |||
2503 | // ::= pt # -> | |||
2504 | case OO_Arrow: Out << "pt"; break; | |||
2505 | // ::= cl # () | |||
2506 | case OO_Call: Out << "cl"; break; | |||
2507 | // ::= ix # [] | |||
2508 | case OO_Subscript: Out << "ix"; break; | |||
2509 | ||||
2510 | // ::= qu # ? | |||
2511 | // The conditional operator can't be overloaded, but we still handle it when | |||
2512 | // mangling expressions. | |||
2513 | case OO_Conditional: Out << "qu"; break; | |||
2514 | // Proposal on cxx-abi-dev, 2015-10-21. | |||
2515 | // ::= aw # co_await | |||
2516 | case OO_Coawait: Out << "aw"; break; | |||
2517 | // Proposed in cxx-abi github issue 43. | |||
2518 | // ::= ss # <=> | |||
2519 | case OO_Spaceship: Out << "ss"; break; | |||
2520 | ||||
2521 | case OO_None: | |||
2522 | case NUM_OVERLOADED_OPERATORS: | |||
2523 | llvm_unreachable("Not an overloaded operator")::llvm::llvm_unreachable_internal("Not an overloaded operator" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 2523); | |||
2524 | } | |||
2525 | } | |||
2526 | ||||
2527 | void CXXNameMangler::mangleQualifiers(Qualifiers Quals, const DependentAddressSpaceType *DAST) { | |||
2528 | // Vendor qualifiers come first and if they are order-insensitive they must | |||
2529 | // be emitted in reversed alphabetical order, see Itanium ABI 5.1.5. | |||
2530 | ||||
2531 | // <type> ::= U <addrspace-expr> | |||
2532 | if (DAST) { | |||
2533 | Out << "U2ASI"; | |||
2534 | mangleExpression(DAST->getAddrSpaceExpr()); | |||
2535 | Out << "E"; | |||
2536 | } | |||
2537 | ||||
2538 | // Address space qualifiers start with an ordinary letter. | |||
2539 | if (Quals.hasAddressSpace()) { | |||
2540 | // Address space extension: | |||
2541 | // | |||
2542 | // <type> ::= U <target-addrspace> | |||
2543 | // <type> ::= U <OpenCL-addrspace> | |||
2544 | // <type> ::= U <CUDA-addrspace> | |||
2545 | ||||
2546 | SmallString<64> ASString; | |||
2547 | LangAS AS = Quals.getAddressSpace(); | |||
2548 | ||||
2549 | if (Context.getASTContext().addressSpaceMapManglingFor(AS)) { | |||
2550 | // <target-addrspace> ::= "AS" <address-space-number> | |||
2551 | unsigned TargetAS = Context.getASTContext().getTargetAddressSpace(AS); | |||
2552 | if (TargetAS != 0 || | |||
2553 | Context.getASTContext().getTargetAddressSpace(LangAS::Default) != 0) | |||
2554 | ASString = "AS" + llvm::utostr(TargetAS); | |||
2555 | } else { | |||
2556 | switch (AS) { | |||
2557 | default: llvm_unreachable("Not a language specific address space")::llvm::llvm_unreachable_internal("Not a language specific address space" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 2557); | |||
2558 | // <OpenCL-addrspace> ::= "CL" [ "global" | "local" | "constant" | | |||
2559 | // "private"| "generic" | "device" | | |||
2560 | // "host" ] | |||
2561 | case LangAS::opencl_global: | |||
2562 | ASString = "CLglobal"; | |||
2563 | break; | |||
2564 | case LangAS::opencl_global_device: | |||
2565 | ASString = "CLdevice"; | |||
2566 | break; | |||
2567 | case LangAS::opencl_global_host: | |||
2568 | ASString = "CLhost"; | |||
2569 | break; | |||
2570 | case LangAS::opencl_local: | |||
2571 | ASString = "CLlocal"; | |||
2572 | break; | |||
2573 | case LangAS::opencl_constant: | |||
2574 | ASString = "CLconstant"; | |||
2575 | break; | |||
2576 | case LangAS::opencl_private: | |||
2577 | ASString = "CLprivate"; | |||
2578 | break; | |||
2579 | case LangAS::opencl_generic: | |||
2580 | ASString = "CLgeneric"; | |||
2581 | break; | |||
2582 | // <SYCL-addrspace> ::= "SY" [ "global" | "local" | "private" | | |||
2583 | // "device" | "host" ] | |||
2584 | case LangAS::sycl_global: | |||
2585 | ASString = "SYglobal"; | |||
2586 | break; | |||
2587 | case LangAS::sycl_global_device: | |||
2588 | ASString = "SYdevice"; | |||
2589 | break; | |||
2590 | case LangAS::sycl_global_host: | |||
2591 | ASString = "SYhost"; | |||
2592 | break; | |||
2593 | case LangAS::sycl_local: | |||
2594 | ASString = "SYlocal"; | |||
2595 | break; | |||
2596 | case LangAS::sycl_private: | |||
2597 | ASString = "SYprivate"; | |||
2598 | break; | |||
2599 | // <CUDA-addrspace> ::= "CU" [ "device" | "constant" | "shared" ] | |||
2600 | case LangAS::cuda_device: | |||
2601 | ASString = "CUdevice"; | |||
2602 | break; | |||
2603 | case LangAS::cuda_constant: | |||
2604 | ASString = "CUconstant"; | |||
2605 | break; | |||
2606 | case LangAS::cuda_shared: | |||
2607 | ASString = "CUshared"; | |||
2608 | break; | |||
2609 | // <ptrsize-addrspace> ::= [ "ptr32_sptr" | "ptr32_uptr" | "ptr64" ] | |||
2610 | case LangAS::ptr32_sptr: | |||
2611 | ASString = "ptr32_sptr"; | |||
2612 | break; | |||
2613 | case LangAS::ptr32_uptr: | |||
2614 | ASString = "ptr32_uptr"; | |||
2615 | break; | |||
2616 | case LangAS::ptr64: | |||
2617 | ASString = "ptr64"; | |||
2618 | break; | |||
2619 | } | |||
2620 | } | |||
2621 | if (!ASString.empty()) | |||
2622 | mangleVendorQualifier(ASString); | |||
2623 | } | |||
2624 | ||||
2625 | // The ARC ownership qualifiers start with underscores. | |||
2626 | // Objective-C ARC Extension: | |||
2627 | // | |||
2628 | // <type> ::= U "__strong" | |||
2629 | // <type> ::= U "__weak" | |||
2630 | // <type> ::= U "__autoreleasing" | |||
2631 | // | |||
2632 | // Note: we emit __weak first to preserve the order as | |||
2633 | // required by the Itanium ABI. | |||
2634 | if (Quals.getObjCLifetime() == Qualifiers::OCL_Weak) | |||
2635 | mangleVendorQualifier("__weak"); | |||
2636 | ||||
2637 | // __unaligned (from -fms-extensions) | |||
2638 | if (Quals.hasUnaligned()) | |||
2639 | mangleVendorQualifier("__unaligned"); | |||
2640 | ||||
2641 | // Remaining ARC ownership qualifiers. | |||
2642 | switch (Quals.getObjCLifetime()) { | |||
2643 | case Qualifiers::OCL_None: | |||
2644 | break; | |||
2645 | ||||
2646 | case Qualifiers::OCL_Weak: | |||
2647 | // Do nothing as we already handled this case above. | |||
2648 | break; | |||
2649 | ||||
2650 | case Qualifiers::OCL_Strong: | |||
2651 | mangleVendorQualifier("__strong"); | |||
2652 | break; | |||
2653 | ||||
2654 | case Qualifiers::OCL_Autoreleasing: | |||
2655 | mangleVendorQualifier("__autoreleasing"); | |||
2656 | break; | |||
2657 | ||||
2658 | case Qualifiers::OCL_ExplicitNone: | |||
2659 | // The __unsafe_unretained qualifier is *not* mangled, so that | |||
2660 | // __unsafe_unretained types in ARC produce the same manglings as the | |||
2661 | // equivalent (but, naturally, unqualified) types in non-ARC, providing | |||
2662 | // better ABI compatibility. | |||
2663 | // | |||
2664 | // It's safe to do this because unqualified 'id' won't show up | |||
2665 | // in any type signatures that need to be mangled. | |||
2666 | break; | |||
2667 | } | |||
2668 | ||||
2669 | // <CV-qualifiers> ::= [r] [V] [K] # restrict (C99), volatile, const | |||
2670 | if (Quals.hasRestrict()) | |||
2671 | Out << 'r'; | |||
2672 | if (Quals.hasVolatile()) | |||
2673 | Out << 'V'; | |||
2674 | if (Quals.hasConst()) | |||
2675 | Out << 'K'; | |||
2676 | } | |||
2677 | ||||
2678 | void CXXNameMangler::mangleVendorQualifier(StringRef name) { | |||
2679 | Out << 'U' << name.size() << name; | |||
2680 | } | |||
2681 | ||||
2682 | void CXXNameMangler::mangleRefQualifier(RefQualifierKind RefQualifier) { | |||
2683 | // <ref-qualifier> ::= R # lvalue reference | |||
2684 | // ::= O # rvalue-reference | |||
2685 | switch (RefQualifier) { | |||
2686 | case RQ_None: | |||
2687 | break; | |||
2688 | ||||
2689 | case RQ_LValue: | |||
2690 | Out << 'R'; | |||
2691 | break; | |||
2692 | ||||
2693 | case RQ_RValue: | |||
2694 | Out << 'O'; | |||
2695 | break; | |||
2696 | } | |||
2697 | } | |||
2698 | ||||
2699 | void CXXNameMangler::mangleObjCMethodName(const ObjCMethodDecl *MD) { | |||
2700 | Context.mangleObjCMethodNameAsSourceName(MD, Out); | |||
2701 | } | |||
2702 | ||||
2703 | static bool isTypeSubstitutable(Qualifiers Quals, const Type *Ty, | |||
2704 | ASTContext &Ctx) { | |||
2705 | if (Quals) | |||
2706 | return true; | |||
2707 | if (Ty->isSpecificBuiltinType(BuiltinType::ObjCSel)) | |||
2708 | return true; | |||
2709 | if (Ty->isOpenCLSpecificType()) | |||
2710 | return true; | |||
2711 | if (Ty->isBuiltinType()) | |||
2712 | return false; | |||
2713 | // Through to Clang 6.0, we accidentally treated undeduced auto types as | |||
2714 | // substitution candidates. | |||
2715 | if (Ctx.getLangOpts().getClangABICompat() > LangOptions::ClangABI::Ver6 && | |||
2716 | isa<AutoType>(Ty)) | |||
2717 | return false; | |||
2718 | // A placeholder type for class template deduction is substitutable with | |||
2719 | // its corresponding template name; this is handled specially when mangling | |||
2720 | // the type. | |||
2721 | if (auto *DeducedTST = Ty->getAs<DeducedTemplateSpecializationType>()) | |||
2722 | if (DeducedTST->getDeducedType().isNull()) | |||
2723 | return false; | |||
2724 | return true; | |||
2725 | } | |||
2726 | ||||
2727 | void CXXNameMangler::mangleType(QualType T) { | |||
2728 | // If our type is instantiation-dependent but not dependent, we mangle | |||
2729 | // it as it was written in the source, removing any top-level sugar. | |||
2730 | // Otherwise, use the canonical type. | |||
2731 | // | |||
2732 | // FIXME: This is an approximation of the instantiation-dependent name | |||
2733 | // mangling rules, since we should really be using the type as written and | |||
2734 | // augmented via semantic analysis (i.e., with implicit conversions and | |||
2735 | // default template arguments) for any instantiation-dependent type. | |||
2736 | // Unfortunately, that requires several changes to our AST: | |||
2737 | // - Instantiation-dependent TemplateSpecializationTypes will need to be | |||
2738 | // uniqued, so that we can handle substitutions properly | |||
2739 | // - Default template arguments will need to be represented in the | |||
2740 | // TemplateSpecializationType, since they need to be mangled even though | |||
2741 | // they aren't written. | |||
2742 | // - Conversions on non-type template arguments need to be expressed, since | |||
2743 | // they can affect the mangling of sizeof/alignof. | |||
2744 | // | |||
2745 | // FIXME: This is wrong when mapping to the canonical type for a dependent | |||
2746 | // type discards instantiation-dependent portions of the type, such as for: | |||
2747 | // | |||
2748 | // template<typename T, int N> void f(T (&)[sizeof(N)]); | |||
2749 | // template<typename T> void f(T() throw(typename T::type)); (pre-C++17) | |||
2750 | // | |||
2751 | // It's also wrong in the opposite direction when instantiation-dependent, | |||
2752 | // canonically-equivalent types differ in some irrelevant portion of inner | |||
2753 | // type sugar. In such cases, we fail to form correct substitutions, eg: | |||
2754 | // | |||
2755 | // template<int N> void f(A<sizeof(N)> *, A<sizeof(N)> (*)); | |||
2756 | // | |||
2757 | // We should instead canonicalize the non-instantiation-dependent parts, | |||
2758 | // regardless of whether the type as a whole is dependent or instantiation | |||
2759 | // dependent. | |||
2760 | if (!T->isInstantiationDependentType() || T->isDependentType()) | |||
2761 | T = T.getCanonicalType(); | |||
2762 | else { | |||
2763 | // Desugar any types that are purely sugar. | |||
2764 | do { | |||
2765 | // Don't desugar through template specialization types that aren't | |||
2766 | // type aliases. We need to mangle the template arguments as written. | |||
2767 | if (const TemplateSpecializationType *TST | |||
2768 | = dyn_cast<TemplateSpecializationType>(T)) | |||
2769 | if (!TST->isTypeAlias()) | |||
2770 | break; | |||
2771 | ||||
2772 | // FIXME: We presumably shouldn't strip off ElaboratedTypes with | |||
2773 | // instantation-dependent qualifiers. See | |||
2774 | // https://github.com/itanium-cxx-abi/cxx-abi/issues/114. | |||
2775 | ||||
2776 | QualType Desugared | |||
2777 | = T.getSingleStepDesugaredType(Context.getASTContext()); | |||
2778 | if (Desugared == T) | |||
2779 | break; | |||
2780 | ||||
2781 | T = Desugared; | |||
2782 | } while (true); | |||
2783 | } | |||
2784 | SplitQualType split = T.split(); | |||
2785 | Qualifiers quals = split.Quals; | |||
2786 | const Type *ty = split.Ty; | |||
2787 | ||||
2788 | bool isSubstitutable = | |||
2789 | isTypeSubstitutable(quals, ty, Context.getASTContext()); | |||
2790 | if (isSubstitutable && mangleSubstitution(T)) | |||
2791 | return; | |||
2792 | ||||
2793 | // If we're mangling a qualified array type, push the qualifiers to | |||
2794 | // the element type. | |||
2795 | if (quals && isa<ArrayType>(T)) { | |||
2796 | ty = Context.getASTContext().getAsArrayType(T); | |||
2797 | quals = Qualifiers(); | |||
2798 | ||||
2799 | // Note that we don't update T: we want to add the | |||
2800 | // substitution at the original type. | |||
2801 | } | |||
2802 | ||||
2803 | if (quals || ty->isDependentAddressSpaceType()) { | |||
2804 | if (const DependentAddressSpaceType *DAST = | |||
2805 | dyn_cast<DependentAddressSpaceType>(ty)) { | |||
2806 | SplitQualType splitDAST = DAST->getPointeeType().split(); | |||
2807 | mangleQualifiers(splitDAST.Quals, DAST); | |||
2808 | mangleType(QualType(splitDAST.Ty, 0)); | |||
2809 | } else { | |||
2810 | mangleQualifiers(quals); | |||
2811 | ||||
2812 | // Recurse: even if the qualified type isn't yet substitutable, | |||
2813 | // the unqualified type might be. | |||
2814 | mangleType(QualType(ty, 0)); | |||
2815 | } | |||
2816 | } else { | |||
2817 | switch (ty->getTypeClass()) { | |||
2818 | #define ABSTRACT_TYPE(CLASS, PARENT) | |||
2819 | #define NON_CANONICAL_TYPE(CLASS, PARENT) \ | |||
2820 | case Type::CLASS: \ | |||
2821 | 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-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 2821); \ | |||
2822 | return; | |||
2823 | #define TYPE(CLASS, PARENT) \ | |||
2824 | case Type::CLASS: \ | |||
2825 | mangleType(static_cast<const CLASS##Type*>(ty)); \ | |||
2826 | break; | |||
2827 | #include "clang/AST/TypeNodes.inc" | |||
2828 | } | |||
2829 | } | |||
2830 | ||||
2831 | // Add the substitution. | |||
2832 | if (isSubstitutable) | |||
2833 | addSubstitution(T); | |||
2834 | } | |||
2835 | ||||
2836 | void CXXNameMangler::mangleNameOrStandardSubstitution(const NamedDecl *ND) { | |||
2837 | if (!mangleStandardSubstitution(ND)) | |||
2838 | mangleName(ND); | |||
2839 | } | |||
2840 | ||||
2841 | void CXXNameMangler::mangleType(const BuiltinType *T) { | |||
2842 | // <type> ::= <builtin-type> | |||
2843 | // <builtin-type> ::= v # void | |||
2844 | // ::= w # wchar_t | |||
2845 | // ::= b # bool | |||
2846 | // ::= c # char | |||
2847 | // ::= a # signed char | |||
2848 | // ::= h # unsigned char | |||
2849 | // ::= s # short | |||
2850 | // ::= t # unsigned short | |||
2851 | // ::= i # int | |||
2852 | // ::= j # unsigned int | |||
2853 | // ::= l # long | |||
2854 | // ::= m # unsigned long | |||
2855 | // ::= x # long long, __int64 | |||
2856 | // ::= y # unsigned long long, __int64 | |||
2857 | // ::= n # __int128 | |||
2858 | // ::= o # unsigned __int128 | |||
2859 | // ::= f # float | |||
2860 | // ::= d # double | |||
2861 | // ::= e # long double, __float80 | |||
2862 | // ::= g # __float128 | |||
2863 | // UNSUPPORTED: ::= Dd # IEEE 754r decimal floating point (64 bits) | |||
2864 | // UNSUPPORTED: ::= De # IEEE 754r decimal floating point (128 bits) | |||
2865 | // UNSUPPORTED: ::= Df # IEEE 754r decimal floating point (32 bits) | |||
2866 | // ::= Dh # IEEE 754r half-precision floating point (16 bits) | |||
2867 | // ::= DF <number> _ # ISO/IEC TS 18661 binary floating point type _FloatN (N bits); | |||
2868 | // ::= Di # char32_t | |||
2869 | // ::= Ds # char16_t | |||
2870 | // ::= Dn # std::nullptr_t (i.e., decltype(nullptr)) | |||
2871 | // ::= u <source-name> # vendor extended type | |||
2872 | std::string type_name; | |||
2873 | switch (T->getKind()) { | |||
2874 | case BuiltinType::Void: | |||
2875 | Out << 'v'; | |||
2876 | break; | |||
2877 | case BuiltinType::Bool: | |||
2878 | Out << 'b'; | |||
2879 | break; | |||
2880 | case BuiltinType::Char_U: | |||
2881 | case BuiltinType::Char_S: | |||
2882 | Out << 'c'; | |||
2883 | break; | |||
2884 | case BuiltinType::UChar: | |||
2885 | Out << 'h'; | |||
2886 | break; | |||
2887 | case BuiltinType::UShort: | |||
2888 | Out << 't'; | |||
2889 | break; | |||
2890 | case BuiltinType::UInt: | |||
2891 | Out << 'j'; | |||
2892 | break; | |||
2893 | case BuiltinType::ULong: | |||
2894 | Out << 'm'; | |||
2895 | break; | |||
2896 | case BuiltinType::ULongLong: | |||
2897 | Out << 'y'; | |||
2898 | break; | |||
2899 | case BuiltinType::UInt128: | |||
2900 | Out << 'o'; | |||
2901 | break; | |||
2902 | case BuiltinType::SChar: | |||
2903 | Out << 'a'; | |||
2904 | break; | |||
2905 | case BuiltinType::WChar_S: | |||
2906 | case BuiltinType::WChar_U: | |||
2907 | Out << 'w'; | |||
2908 | break; | |||
2909 | case BuiltinType::Char8: | |||
2910 | Out << "Du"; | |||
2911 | break; | |||
2912 | case BuiltinType::Char16: | |||
2913 | Out << "Ds"; | |||
2914 | break; | |||
2915 | case BuiltinType::Char32: | |||
2916 | Out << "Di"; | |||
2917 | break; | |||
2918 | case BuiltinType::Short: | |||
2919 | Out << 's'; | |||
2920 | break; | |||
2921 | case BuiltinType::Int: | |||
2922 | Out << 'i'; | |||
2923 | break; | |||
2924 | case BuiltinType::Long: | |||
2925 | Out << 'l'; | |||
2926 | break; | |||
2927 | case BuiltinType::LongLong: | |||
2928 | Out << 'x'; | |||
2929 | break; | |||
2930 | case BuiltinType::Int128: | |||
2931 | Out << 'n'; | |||
2932 | break; | |||
2933 | case BuiltinType::Float16: | |||
2934 | Out << "DF16_"; | |||
2935 | break; | |||
2936 | case BuiltinType::ShortAccum: | |||
2937 | case BuiltinType::Accum: | |||
2938 | case BuiltinType::LongAccum: | |||
2939 | case BuiltinType::UShortAccum: | |||
2940 | case BuiltinType::UAccum: | |||
2941 | case BuiltinType::ULongAccum: | |||
2942 | case BuiltinType::ShortFract: | |||
2943 | case BuiltinType::Fract: | |||
2944 | case BuiltinType::LongFract: | |||
2945 | case BuiltinType::UShortFract: | |||
2946 | case BuiltinType::UFract: | |||
2947 | case BuiltinType::ULongFract: | |||
2948 | case BuiltinType::SatShortAccum: | |||
2949 | case BuiltinType::SatAccum: | |||
2950 | case BuiltinType::SatLongAccum: | |||
2951 | case BuiltinType::SatUShortAccum: | |||
2952 | case BuiltinType::SatUAccum: | |||
2953 | case BuiltinType::SatULongAccum: | |||
2954 | case BuiltinType::SatShortFract: | |||
2955 | case BuiltinType::SatFract: | |||
2956 | case BuiltinType::SatLongFract: | |||
2957 | case BuiltinType::SatUShortFract: | |||
2958 | case BuiltinType::SatUFract: | |||
2959 | case BuiltinType::SatULongFract: | |||
2960 | llvm_unreachable("Fixed point types are disabled for c++")::llvm::llvm_unreachable_internal("Fixed point types are disabled for c++" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 2960); | |||
2961 | case BuiltinType::Half: | |||
2962 | Out << "Dh"; | |||
2963 | break; | |||
2964 | case BuiltinType::Float: | |||
2965 | Out << 'f'; | |||
2966 | break; | |||
2967 | case BuiltinType::Double: | |||
2968 | Out << 'd'; | |||
2969 | break; | |||
2970 | case BuiltinType::LongDouble: { | |||
2971 | const TargetInfo *TI = getASTContext().getLangOpts().OpenMP && | |||
2972 | getASTContext().getLangOpts().OpenMPIsDevice | |||
2973 | ? getASTContext().getAuxTargetInfo() | |||
2974 | : &getASTContext().getTargetInfo(); | |||
2975 | Out << TI->getLongDoubleMangling(); | |||
2976 | break; | |||
2977 | } | |||
2978 | case BuiltinType::Float128: { | |||
2979 | const TargetInfo *TI = getASTContext().getLangOpts().OpenMP && | |||
2980 | getASTContext().getLangOpts().OpenMPIsDevice | |||
2981 | ? getASTContext().getAuxTargetInfo() | |||
2982 | : &getASTContext().getTargetInfo(); | |||
2983 | Out << TI->getFloat128Mangling(); | |||
2984 | break; | |||
2985 | } | |||
2986 | case BuiltinType::BFloat16: { | |||
2987 | const TargetInfo *TI = &getASTContext().getTargetInfo(); | |||
2988 | Out << TI->getBFloat16Mangling(); | |||
2989 | break; | |||
2990 | } | |||
2991 | case BuiltinType::NullPtr: | |||
2992 | Out << "Dn"; | |||
2993 | break; | |||
2994 | ||||
2995 | #define BUILTIN_TYPE(Id, SingletonId) | |||
2996 | #define PLACEHOLDER_TYPE(Id, SingletonId) \ | |||
2997 | case BuiltinType::Id: | |||
2998 | #include "clang/AST/BuiltinTypes.def" | |||
2999 | case BuiltinType::Dependent: | |||
3000 | if (!NullOut) | |||
3001 | llvm_unreachable("mangling a placeholder type")::llvm::llvm_unreachable_internal("mangling a placeholder type" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 3001); | |||
3002 | break; | |||
3003 | case BuiltinType::ObjCId: | |||
3004 | Out << "11objc_object"; | |||
3005 | break; | |||
3006 | case BuiltinType::ObjCClass: | |||
3007 | Out << "10objc_class"; | |||
3008 | break; | |||
3009 | case BuiltinType::ObjCSel: | |||
3010 | Out << "13objc_selector"; | |||
3011 | break; | |||
3012 | #define IMAGE_TYPE(ImgType, Id, SingletonId, Access, Suffix) \ | |||
3013 | case BuiltinType::Id: \ | |||
3014 | type_name = "ocl_" #ImgType "_" #Suffix; \ | |||
3015 | Out << type_name.size() << type_name; \ | |||
3016 | break; | |||
3017 | #include "clang/Basic/OpenCLImageTypes.def" | |||
3018 | case BuiltinType::OCLSampler: | |||
3019 | Out << "11ocl_sampler"; | |||
3020 | break; | |||
3021 | case BuiltinType::OCLEvent: | |||
3022 | Out << "9ocl_event"; | |||
3023 | break; | |||
3024 | case BuiltinType::OCLClkEvent: | |||
3025 | Out << "12ocl_clkevent"; | |||
3026 | break; | |||
3027 | case BuiltinType::OCLQueue: | |||
3028 | Out << "9ocl_queue"; | |||
3029 | break; | |||
3030 | case BuiltinType::OCLReserveID: | |||
3031 | Out << "13ocl_reserveid"; | |||
3032 | break; | |||
3033 | #define EXT_OPAQUE_TYPE(ExtType, Id, Ext) \ | |||
3034 | case BuiltinType::Id: \ | |||
3035 | type_name = "ocl_" #ExtType; \ | |||
3036 | Out << type_name.size() << type_name; \ | |||
3037 | break; | |||
3038 | #include "clang/Basic/OpenCLExtensionTypes.def" | |||
3039 | // The SVE types are effectively target-specific. The mangling scheme | |||
3040 | // is defined in the appendices to the Procedure Call Standard for the | |||
3041 | // Arm Architecture. | |||
3042 | #define SVE_VECTOR_TYPE(InternalName, MangledName, Id, SingletonId, NumEls, \ | |||
3043 | ElBits, IsSigned, IsFP, IsBF) \ | |||
3044 | case BuiltinType::Id: \ | |||
3045 | type_name = MangledName; \ | |||
3046 | Out << (type_name == InternalName ? "u" : "") << type_name.size() \ | |||
3047 | << type_name; \ | |||
3048 | break; | |||
3049 | #define SVE_PREDICATE_TYPE(InternalName, MangledName, Id, SingletonId, NumEls) \ | |||
3050 | case BuiltinType::Id: \ | |||
3051 | type_name = MangledName; \ | |||
3052 | Out << (type_name == InternalName ? "u" : "") << type_name.size() \ | |||
3053 | << type_name; \ | |||
3054 | break; | |||
3055 | #include "clang/Basic/AArch64SVEACLETypes.def" | |||
3056 | #define PPC_VECTOR_TYPE(Name, Id, Size) \ | |||
3057 | case BuiltinType::Id: \ | |||
3058 | type_name = #Name; \ | |||
3059 | Out << 'u' << type_name.size() << type_name; \ | |||
3060 | break; | |||
3061 | #include "clang/Basic/PPCTypes.def" | |||
3062 | // TODO: Check the mangling scheme for RISC-V V. | |||
3063 | #define RVV_TYPE(Name, Id, SingletonId) \ | |||
3064 | case BuiltinType::Id: \ | |||
3065 | type_name = Name; \ | |||
3066 | Out << 'u' << type_name.size() << type_name; \ | |||
3067 | break; | |||
3068 | #include "clang/Basic/RISCVVTypes.def" | |||
3069 | } | |||
3070 | } | |||
3071 | ||||
3072 | StringRef CXXNameMangler::getCallingConvQualifierName(CallingConv CC) { | |||
3073 | switch (CC) { | |||
3074 | case CC_C: | |||
3075 | return ""; | |||
3076 | ||||
3077 | case CC_X86VectorCall: | |||
3078 | case CC_X86Pascal: | |||
3079 | case CC_X86RegCall: | |||
3080 | case CC_AAPCS: | |||
3081 | case CC_AAPCS_VFP: | |||
3082 | case CC_AArch64VectorCall: | |||
3083 | case CC_IntelOclBicc: | |||
3084 | case CC_SpirFunction: | |||
3085 | case CC_OpenCLKernel: | |||
3086 | case CC_PreserveMost: | |||
3087 | case CC_PreserveAll: | |||
3088 | // FIXME: we should be mangling all of the above. | |||
3089 | return ""; | |||
3090 | ||||
3091 | case CC_X86ThisCall: | |||
3092 | // FIXME: To match mingw GCC, thiscall should only be mangled in when it is | |||
3093 | // used explicitly. At this point, we don't have that much information in | |||
3094 | // the AST, since clang tends to bake the convention into the canonical | |||
3095 | // function type. thiscall only rarely used explicitly, so don't mangle it | |||
3096 | // for now. | |||
3097 | return ""; | |||
3098 | ||||
3099 | case CC_X86StdCall: | |||
3100 | return "stdcall"; | |||
3101 | case CC_X86FastCall: | |||
3102 | return "fastcall"; | |||
3103 | case CC_X86_64SysV: | |||
3104 | return "sysv_abi"; | |||
3105 | case CC_Win64: | |||
3106 | return "ms_abi"; | |||
3107 | case CC_Swift: | |||
3108 | return "swiftcall"; | |||
3109 | case CC_SwiftAsync: | |||
3110 | return "swiftasynccall"; | |||
3111 | } | |||
3112 | llvm_unreachable("bad calling convention")::llvm::llvm_unreachable_internal("bad calling convention", "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 3112); | |||
3113 | } | |||
3114 | ||||
3115 | void CXXNameMangler::mangleExtFunctionInfo(const FunctionType *T) { | |||
3116 | // Fast path. | |||
3117 | if (T->getExtInfo() == FunctionType::ExtInfo()) | |||
3118 | return; | |||
3119 | ||||
3120 | // Vendor-specific qualifiers are emitted in reverse alphabetical order. | |||
3121 | // This will get more complicated in the future if we mangle other | |||
3122 | // things here; but for now, since we mangle ns_returns_retained as | |||
3123 | // a qualifier on the result type, we can get away with this: | |||
3124 | StringRef CCQualifier = getCallingConvQualifierName(T->getExtInfo().getCC()); | |||
3125 | if (!CCQualifier.empty()) | |||
3126 | mangleVendorQualifier(CCQualifier); | |||
3127 | ||||
3128 | // FIXME: regparm | |||
3129 | // FIXME: noreturn | |||
3130 | } | |||
3131 | ||||
3132 | void | |||
3133 | CXXNameMangler::mangleExtParameterInfo(FunctionProtoType::ExtParameterInfo PI) { | |||
3134 | // Vendor-specific qualifiers are emitted in reverse alphabetical order. | |||
3135 | ||||
3136 | // Note that these are *not* substitution candidates. Demanglers might | |||
3137 | // have trouble with this if the parameter type is fully substituted. | |||
3138 | ||||
3139 | switch (PI.getABI()) { | |||
3140 | case ParameterABI::Ordinary: | |||
3141 | break; | |||
3142 | ||||
3143 | // All of these start with "swift", so they come before "ns_consumed". | |||
3144 | case ParameterABI::SwiftContext: | |||
3145 | case ParameterABI::SwiftAsyncContext: | |||
3146 | case ParameterABI::SwiftErrorResult: | |||
3147 | case ParameterABI::SwiftIndirectResult: | |||
3148 | mangleVendorQualifier(getParameterABISpelling(PI.getABI())); | |||
3149 | break; | |||
3150 | } | |||
3151 | ||||
3152 | if (PI.isConsumed()) | |||
3153 | mangleVendorQualifier("ns_consumed"); | |||
3154 | ||||
3155 | if (PI.isNoEscape()) | |||
3156 | mangleVendorQualifier("noescape"); | |||
3157 | } | |||
3158 | ||||
3159 | // <type> ::= <function-type> | |||
3160 | // <function-type> ::= [<CV-qualifiers>] F [Y] | |||
3161 | // <bare-function-type> [<ref-qualifier>] E | |||
3162 | void CXXNameMangler::mangleType(const FunctionProtoType *T) { | |||
3163 | mangleExtFunctionInfo(T); | |||
3164 | ||||
3165 | // Mangle CV-qualifiers, if present. These are 'this' qualifiers, | |||
3166 | // e.g. "const" in "int (A::*)() const". | |||
3167 | mangleQualifiers(T->getMethodQuals()); | |||
3168 | ||||
3169 | // Mangle instantiation-dependent exception-specification, if present, | |||
3170 | // per cxx-abi-dev proposal on 2016-10-11. | |||
3171 | if (T->hasInstantiationDependentExceptionSpec()) { | |||
3172 | if (isComputedNoexcept(T->getExceptionSpecType())) { | |||
3173 | Out << "DO"; | |||
3174 | mangleExpression(T->getNoexceptExpr()); | |||
3175 | Out << "E"; | |||
3176 | } else { | |||
3177 | assert(T->getExceptionSpecType() == EST_Dynamic)(static_cast <bool> (T->getExceptionSpecType() == EST_Dynamic ) ? void (0) : __assert_fail ("T->getExceptionSpecType() == EST_Dynamic" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 3177, __extension__ __PRETTY_FUNCTION__)); | |||
3178 | Out << "Dw"; | |||
3179 | for (auto ExceptTy : T->exceptions()) | |||
3180 | mangleType(ExceptTy); | |||
3181 | Out << "E"; | |||
3182 | } | |||
3183 | } else if (T->isNothrow()) { | |||
3184 | Out << "Do"; | |||
3185 | } | |||
3186 | ||||
3187 | Out << 'F'; | |||
3188 | ||||
3189 | // FIXME: We don't have enough information in the AST to produce the 'Y' | |||
3190 | // encoding for extern "C" function types. | |||
3191 | mangleBareFunctionType(T, /*MangleReturnType=*/true); | |||
3192 | ||||
3193 | // Mangle the ref-qualifier, if present. | |||
3194 | mangleRefQualifier(T->getRefQualifier()); | |||
3195 | ||||
3196 | Out << 'E'; | |||
3197 | } | |||
3198 | ||||
3199 | void CXXNameMangler::mangleType(const FunctionNoProtoType *T) { | |||
3200 | // Function types without prototypes can arise when mangling a function type | |||
3201 | // within an overloadable function in C. We mangle these as the absence of any | |||
3202 | // parameter types (not even an empty parameter list). | |||
3203 | Out << 'F'; | |||
3204 | ||||
3205 | FunctionTypeDepthState saved = FunctionTypeDepth.push(); | |||
3206 | ||||
3207 | FunctionTypeDepth.enterResultType(); | |||
3208 | mangleType(T->getReturnType()); | |||
3209 | FunctionTypeDepth.leaveResultType(); | |||
3210 | ||||
3211 | FunctionTypeDepth.pop(saved); | |||
3212 | Out << 'E'; | |||
3213 | } | |||
3214 | ||||
3215 | void CXXNameMangler::mangleBareFunctionType(const FunctionProtoType *Proto, | |||
3216 | bool MangleReturnType, | |||
3217 | const FunctionDecl *FD) { | |||
3218 | // Record that we're in a function type. See mangleFunctionParam | |||
3219 | // for details on what we're trying to achieve here. | |||
3220 | FunctionTypeDepthState saved = FunctionTypeDepth.push(); | |||
3221 | ||||
3222 | // <bare-function-type> ::= <signature type>+ | |||
3223 | if (MangleReturnType) { | |||
3224 | FunctionTypeDepth.enterResultType(); | |||
3225 | ||||
3226 | // Mangle ns_returns_retained as an order-sensitive qualifier here. | |||
3227 | if (Proto->getExtInfo().getProducesResult() && FD == nullptr) | |||
3228 | mangleVendorQualifier("ns_returns_retained"); | |||
3229 | ||||
3230 | // Mangle the return type without any direct ARC ownership qualifiers. | |||
3231 | QualType ReturnTy = Proto->getReturnType(); | |||
3232 | if (ReturnTy.getObjCLifetime()) { | |||
3233 | auto SplitReturnTy = ReturnTy.split(); | |||
3234 | SplitReturnTy.Quals.removeObjCLifetime(); | |||
3235 | ReturnTy = getASTContext().getQualifiedType(SplitReturnTy); | |||
3236 | } | |||
3237 | mangleType(ReturnTy); | |||
3238 | ||||
3239 | FunctionTypeDepth.leaveResultType(); | |||
3240 | } | |||
3241 | ||||
3242 | if (Proto->getNumParams() == 0 && !Proto->isVariadic()) { | |||
3243 | // <builtin-type> ::= v # void | |||
3244 | Out << 'v'; | |||
3245 | ||||
3246 | FunctionTypeDepth.pop(saved); | |||
3247 | return; | |||
3248 | } | |||
3249 | ||||
3250 | assert(!FD || FD->getNumParams() == Proto->getNumParams())(static_cast <bool> (!FD || FD->getNumParams() == Proto ->getNumParams()) ? void (0) : __assert_fail ("!FD || FD->getNumParams() == Proto->getNumParams()" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 3250, __extension__ __PRETTY_FUNCTION__)); | |||
3251 | for (unsigned I = 0, E = Proto->getNumParams(); I != E; ++I) { | |||
3252 | // Mangle extended parameter info as order-sensitive qualifiers here. | |||
3253 | if (Proto->hasExtParameterInfos() && FD == nullptr) { | |||
3254 | mangleExtParameterInfo(Proto->getExtParameterInfo(I)); | |||
3255 | } | |||
3256 | ||||
3257 | // Mangle the type. | |||
3258 | QualType ParamTy = Proto->getParamType(I); | |||
3259 | mangleType(Context.getASTContext().getSignatureParameterType(ParamTy)); | |||
3260 | ||||
3261 | if (FD) { | |||
3262 | if (auto *Attr = FD->getParamDecl(I)->getAttr<PassObjectSizeAttr>()) { | |||
3263 | // Attr can only take 1 character, so we can hardcode the length below. | |||
3264 | assert(Attr->getType() <= 9 && Attr->getType() >= 0)(static_cast <bool> (Attr->getType() <= 9 && Attr->getType() >= 0) ? void (0) : __assert_fail ("Attr->getType() <= 9 && Attr->getType() >= 0" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 3264, __extension__ __PRETTY_FUNCTION__)); | |||
3265 | if (Attr->isDynamic()) | |||
3266 | Out << "U25pass_dynamic_object_size" << Attr->getType(); | |||
3267 | else | |||
3268 | Out << "U17pass_object_size" << Attr->getType(); | |||
3269 | } | |||
3270 | } | |||
3271 | } | |||
3272 | ||||
3273 | FunctionTypeDepth.pop(saved); | |||
3274 | ||||
3275 | // <builtin-type> ::= z # ellipsis | |||
3276 | if (Proto->isVariadic()) | |||
3277 | Out << 'z'; | |||
3278 | } | |||
3279 | ||||
3280 | // <type> ::= <class-enum-type> | |||
3281 | // <class-enum-type> ::= <name> | |||
3282 | void CXXNameMangler::mangleType(const UnresolvedUsingType *T) { | |||
3283 | mangleName(T->getDecl()); | |||
3284 | } | |||
3285 | ||||
3286 | // <type> ::= <class-enum-type> | |||
3287 | // <class-enum-type> ::= <name> | |||
3288 | void CXXNameMangler::mangleType(const EnumType *T) { | |||
3289 | mangleType(static_cast<const TagType*>(T)); | |||
3290 | } | |||
3291 | void CXXNameMangler::mangleType(const RecordType *T) { | |||
3292 | mangleType(static_cast<const TagType*>(T)); | |||
3293 | } | |||
3294 | void CXXNameMangler::mangleType(const TagType *T) { | |||
3295 | mangleName(T->getDecl()); | |||
3296 | } | |||
3297 | ||||
3298 | // <type> ::= <array-type> | |||
3299 | // <array-type> ::= A <positive dimension number> _ <element type> | |||
3300 | // ::= A [<dimension expression>] _ <element type> | |||
3301 | void CXXNameMangler::mangleType(const ConstantArrayType *T) { | |||
3302 | Out << 'A' << T->getSize() << '_'; | |||
3303 | mangleType(T->getElementType()); | |||
3304 | } | |||
3305 | void CXXNameMangler::mangleType(const VariableArrayType *T) { | |||
3306 | Out << 'A'; | |||
3307 | // decayed vla types (size 0) will just be skipped. | |||
3308 | if (T->getSizeExpr()) | |||
3309 | mangleExpression(T->getSizeExpr()); | |||
3310 | Out << '_'; | |||
3311 | mangleType(T->getElementType()); | |||
3312 | } | |||
3313 | void CXXNameMangler::mangleType(const DependentSizedArrayType *T) { | |||
3314 | Out << 'A'; | |||
3315 | // A DependentSizedArrayType might not have size expression as below | |||
3316 | // | |||
3317 | // template<int ...N> int arr[] = {N...}; | |||
3318 | if (T->getSizeExpr()) | |||
3319 | mangleExpression(T->getSizeExpr()); | |||
3320 | Out << '_'; | |||
3321 | mangleType(T->getElementType()); | |||
3322 | } | |||
3323 | void CXXNameMangler::mangleType(const IncompleteArrayType *T) { | |||
3324 | Out << "A_"; | |||
3325 | mangleType(T->getElementType()); | |||
3326 | } | |||
3327 | ||||
3328 | // <type> ::= <pointer-to-member-type> | |||
3329 | // <pointer-to-member-type> ::= M <class type> <member type> | |||
3330 | void CXXNameMangler::mangleType(const MemberPointerType *T) { | |||
3331 | Out << 'M'; | |||
3332 | mangleType(QualType(T->getClass(), 0)); | |||
3333 | QualType PointeeType = T->getPointeeType(); | |||
3334 | if (const FunctionProtoType *FPT = dyn_cast<FunctionProtoType>(PointeeType)) { | |||
3335 | mangleType(FPT); | |||
3336 | ||||
3337 | // Itanium C++ ABI 5.1.8: | |||
3338 | // | |||
3339 | // The type of a non-static member function is considered to be different, | |||
3340 | // for the purposes of substitution, from the type of a namespace-scope or | |||
3341 | // static member function whose type appears similar. The types of two | |||
3342 | // non-static member functions are considered to be different, for the | |||
3343 | // purposes of substitution, if the functions are members of different | |||
3344 | // classes. In other words, for the purposes of substitution, the class of | |||
3345 | // which the function is a member is considered part of the type of | |||
3346 | // function. | |||
3347 | ||||
3348 | // Given that we already substitute member function pointers as a | |||
3349 | // whole, the net effect of this rule is just to unconditionally | |||
3350 | // suppress substitution on the function type in a member pointer. | |||
3351 | // We increment the SeqID here to emulate adding an entry to the | |||
3352 | // substitution table. | |||
3353 | ++SeqID; | |||
3354 | } else | |||
3355 | mangleType(PointeeType); | |||
3356 | } | |||
3357 | ||||
3358 | // <type> ::= <template-param> | |||
3359 | void CXXNameMangler::mangleType(const TemplateTypeParmType *T) { | |||
3360 | mangleTemplateParameter(T->getDepth(), T->getIndex()); | |||
3361 | } | |||
3362 | ||||
3363 | // <type> ::= <template-param> | |||
3364 | void CXXNameMangler::mangleType(const SubstTemplateTypeParmPackType *T) { | |||
3365 | // FIXME: not clear how to mangle this! | |||
3366 | // template <class T...> class A { | |||
3367 | // template <class U...> void foo(T(*)(U) x...); | |||
3368 | // }; | |||
3369 | Out << "_SUBSTPACK_"; | |||
3370 | } | |||
3371 | ||||
3372 | // <type> ::= P <type> # pointer-to | |||
3373 | void CXXNameMangler::mangleType(const PointerType *T) { | |||
3374 | Out << 'P'; | |||
3375 | mangleType(T->getPointeeType()); | |||
3376 | } | |||
3377 | void CXXNameMangler::mangleType(const ObjCObjectPointerType *T) { | |||
3378 | Out << 'P'; | |||
3379 | mangleType(T->getPointeeType()); | |||
3380 | } | |||
3381 | ||||
3382 | // <type> ::= R <type> # reference-to | |||
3383 | void CXXNameMangler::mangleType(const LValueReferenceType *T) { | |||
3384 | Out << 'R'; | |||
3385 | mangleType(T->getPointeeType()); | |||
3386 | } | |||
3387 | ||||
3388 | // <type> ::= O <type> # rvalue reference-to (C++0x) | |||
3389 | void CXXNameMangler::mangleType(const RValueReferenceType *T) { | |||
3390 | Out << 'O'; | |||
3391 | mangleType(T->getPointeeType()); | |||
3392 | } | |||
3393 | ||||
3394 | // <type> ::= C <type> # complex pair (C 2000) | |||
3395 | void CXXNameMangler::mangleType(const ComplexType *T) { | |||
3396 | Out << 'C'; | |||
3397 | mangleType(T->getElementType()); | |||
3398 | } | |||
3399 | ||||
3400 | // ARM's ABI for Neon vector types specifies that they should be mangled as | |||
3401 | // if they are structs (to match ARM's initial implementation). The | |||
3402 | // vector type must be one of the special types predefined by ARM. | |||
3403 | void CXXNameMangler::mangleNeonVectorType(const VectorType *T) { | |||
3404 | QualType EltType = T->getElementType(); | |||
3405 | assert(EltType->isBuiltinType() && "Neon vector element not a BuiltinType")(static_cast <bool> (EltType->isBuiltinType() && "Neon vector element not a BuiltinType") ? void (0) : __assert_fail ("EltType->isBuiltinType() && \"Neon vector element not a BuiltinType\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 3405, __extension__ __PRETTY_FUNCTION__)); | |||
3406 | const char *EltName = nullptr; | |||
3407 | if (T->getVectorKind() == VectorType::NeonPolyVector) { | |||
3408 | switch (cast<BuiltinType>(EltType)->getKind()) { | |||
3409 | case BuiltinType::SChar: | |||
3410 | case BuiltinType::UChar: | |||
3411 | EltName = "poly8_t"; | |||
3412 | break; | |||
3413 | case BuiltinType::Short: | |||
3414 | case BuiltinType::UShort: | |||
3415 | EltName = "poly16_t"; | |||
3416 | break; | |||
3417 | case BuiltinType::LongLong: | |||
3418 | case BuiltinType::ULongLong: | |||
3419 | EltName = "poly64_t"; | |||
3420 | break; | |||
3421 | default: llvm_unreachable("unexpected Neon polynomial vector element type")::llvm::llvm_unreachable_internal("unexpected Neon polynomial vector element type" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 3421); | |||
3422 | } | |||
3423 | } else { | |||
3424 | switch (cast<BuiltinType>(EltType)->getKind()) { | |||
3425 | case BuiltinType::SChar: EltName = "int8_t"; break; | |||
3426 | case BuiltinType::UChar: EltName = "uint8_t"; break; | |||
3427 | case BuiltinType::Short: EltName = "int16_t"; break; | |||
3428 | case BuiltinType::UShort: EltName = "uint16_t"; break; | |||
3429 | case BuiltinType::Int: EltName = "int32_t"; break; | |||
3430 | case BuiltinType::UInt: EltName = "uint32_t"; break; | |||
3431 | case BuiltinType::LongLong: EltName = "int64_t"; break; | |||
3432 | case BuiltinType::ULongLong: EltName = "uint64_t"; break; | |||
3433 | case BuiltinType::Double: EltName = "float64_t"; break; | |||
3434 | case BuiltinType::Float: EltName = "float32_t"; break; | |||
3435 | case BuiltinType::Half: EltName = "float16_t"; break; | |||
3436 | case BuiltinType::BFloat16: EltName = "bfloat16_t"; break; | |||
3437 | default: | |||
3438 | llvm_unreachable("unexpected Neon vector element type")::llvm::llvm_unreachable_internal("unexpected Neon vector element type" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 3438); | |||
3439 | } | |||
3440 | } | |||
3441 | const char *BaseName = nullptr; | |||
3442 | unsigned BitSize = (T->getNumElements() * | |||
3443 | getASTContext().getTypeSize(EltType)); | |||
3444 | if (BitSize == 64) | |||
3445 | BaseName = "__simd64_"; | |||
3446 | else { | |||
3447 | assert(BitSize == 128 && "Neon vector type not 64 or 128 bits")(static_cast <bool> (BitSize == 128 && "Neon vector type not 64 or 128 bits" ) ? void (0) : __assert_fail ("BitSize == 128 && \"Neon vector type not 64 or 128 bits\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 3447, __extension__ __PRETTY_FUNCTION__)); | |||
3448 | BaseName = "__simd128_"; | |||
3449 | } | |||
3450 | Out << strlen(BaseName) + strlen(EltName); | |||
3451 | Out << BaseName << EltName; | |||
3452 | } | |||
3453 | ||||
3454 | void CXXNameMangler::mangleNeonVectorType(const DependentVectorType *T) { | |||
3455 | DiagnosticsEngine &Diags = Context.getDiags(); | |||
3456 | unsigned DiagID = Diags.getCustomDiagID( | |||
3457 | DiagnosticsEngine::Error, | |||
3458 | "cannot mangle this dependent neon vector type yet"); | |||
3459 | Diags.Report(T->getAttributeLoc(), DiagID); | |||
3460 | } | |||
3461 | ||||
3462 | static StringRef mangleAArch64VectorBase(const BuiltinType *EltType) { | |||
3463 | switch (EltType->getKind()) { | |||
3464 | case BuiltinType::SChar: | |||
3465 | return "Int8"; | |||
3466 | case BuiltinType::Short: | |||
3467 | return "Int16"; | |||
3468 | case BuiltinType::Int: | |||
3469 | return "Int32"; | |||
3470 | case BuiltinType::Long: | |||
3471 | case BuiltinType::LongLong: | |||
3472 | return "Int64"; | |||
3473 | case BuiltinType::UChar: | |||
3474 | return "Uint8"; | |||
3475 | case BuiltinType::UShort: | |||
3476 | return "Uint16"; | |||
3477 | case BuiltinType::UInt: | |||
3478 | return "Uint32"; | |||
3479 | case BuiltinType::ULong: | |||
3480 | case BuiltinType::ULongLong: | |||
3481 | return "Uint64"; | |||
3482 | case BuiltinType::Half: | |||
3483 | return "Float16"; | |||
3484 | case BuiltinType::Float: | |||
3485 | return "Float32"; | |||
3486 | case BuiltinType::Double: | |||
3487 | return "Float64"; | |||
3488 | case BuiltinType::BFloat16: | |||
3489 | return "Bfloat16"; | |||
3490 | default: | |||
3491 | llvm_unreachable("Unexpected vector element base type")::llvm::llvm_unreachable_internal("Unexpected vector element base type" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 3491); | |||
3492 | } | |||
3493 | } | |||
3494 | ||||
3495 | // AArch64's ABI for Neon vector types specifies that they should be mangled as | |||
3496 | // the equivalent internal name. The vector type must be one of the special | |||
3497 | // types predefined by ARM. | |||
3498 | void CXXNameMangler::mangleAArch64NeonVectorType(const VectorType *T) { | |||
3499 | QualType EltType = T->getElementType(); | |||
3500 | assert(EltType->isBuiltinType() && "Neon vector element not a BuiltinType")(static_cast <bool> (EltType->isBuiltinType() && "Neon vector element not a BuiltinType") ? void (0) : __assert_fail ("EltType->isBuiltinType() && \"Neon vector element not a BuiltinType\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 3500, __extension__ __PRETTY_FUNCTION__)); | |||
3501 | unsigned BitSize = | |||
3502 | (T->getNumElements() * getASTContext().getTypeSize(EltType)); | |||
3503 | (void)BitSize; // Silence warning. | |||
3504 | ||||
3505 | assert((BitSize == 64 || BitSize == 128) &&(static_cast <bool> ((BitSize == 64 || BitSize == 128) && "Neon vector type not 64 or 128 bits") ? void (0) : __assert_fail ("(BitSize == 64 || BitSize == 128) && \"Neon vector type not 64 or 128 bits\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 3506, __extension__ __PRETTY_FUNCTION__)) | |||
3506 | "Neon vector type not 64 or 128 bits")(static_cast <bool> ((BitSize == 64 || BitSize == 128) && "Neon vector type not 64 or 128 bits") ? void (0) : __assert_fail ("(BitSize == 64 || BitSize == 128) && \"Neon vector type not 64 or 128 bits\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 3506, __extension__ __PRETTY_FUNCTION__)); | |||
3507 | ||||
3508 | StringRef EltName; | |||
3509 | if (T->getVectorKind() == VectorType::NeonPolyVector) { | |||
3510 | switch (cast<BuiltinType>(EltType)->getKind()) { | |||
3511 | case BuiltinType::UChar: | |||
3512 | EltName = "Poly8"; | |||
3513 | break; | |||
3514 | case BuiltinType::UShort: | |||
3515 | EltName = "Poly16"; | |||
3516 | break; | |||
3517 | case BuiltinType::ULong: | |||
3518 | case BuiltinType::ULongLong: | |||
3519 | EltName = "Poly64"; | |||
3520 | break; | |||
3521 | default: | |||
3522 | llvm_unreachable("unexpected Neon polynomial vector element type")::llvm::llvm_unreachable_internal("unexpected Neon polynomial vector element type" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 3522); | |||
3523 | } | |||
3524 | } else | |||
3525 | EltName = mangleAArch64VectorBase(cast<BuiltinType>(EltType)); | |||
3526 | ||||
3527 | std::string TypeName = | |||
3528 | ("__" + EltName + "x" + Twine(T->getNumElements()) + "_t").str(); | |||
3529 | Out << TypeName.length() << TypeName; | |||
3530 | } | |||
3531 | void CXXNameMangler::mangleAArch64NeonVectorType(const DependentVectorType *T) { | |||
3532 | DiagnosticsEngine &Diags = Context.getDiags(); | |||
3533 | unsigned DiagID = Diags.getCustomDiagID( | |||
3534 | DiagnosticsEngine::Error, | |||
3535 | "cannot mangle this dependent neon vector type yet"); | |||
3536 | Diags.Report(T->getAttributeLoc(), DiagID); | |||
3537 | } | |||
3538 | ||||
3539 | // The AArch64 ACLE specifies that fixed-length SVE vector and predicate types | |||
3540 | // defined with the 'arm_sve_vector_bits' attribute map to the same AAPCS64 | |||
3541 | // type as the sizeless variants. | |||
3542 | // | |||
3543 | // The mangling scheme for VLS types is implemented as a "pseudo" template: | |||
3544 | // | |||
3545 | // '__SVE_VLS<<type>, <vector length>>' | |||
3546 | // | |||
3547 | // Combining the existing SVE type and a specific vector length (in bits). | |||
3548 | // For example: | |||
3549 | // | |||
3550 | // typedef __SVInt32_t foo __attribute__((arm_sve_vector_bits(512))); | |||
3551 | // | |||
3552 | // is described as '__SVE_VLS<__SVInt32_t, 512u>' and mangled as: | |||
3553 | // | |||
3554 | // "9__SVE_VLSI" + base type mangling + "Lj" + __ARM_FEATURE_SVE_BITS + "EE" | |||
3555 | // | |||
3556 | // i.e. 9__SVE_VLSIu11__SVInt32_tLj512EE | |||
3557 | // | |||
3558 | // The latest ACLE specification (00bet5) does not contain details of this | |||
3559 | // mangling scheme, it will be specified in the next revision. The mangling | |||
3560 | // scheme is otherwise defined in the appendices to the Procedure Call Standard | |||
3561 | // for the Arm Architecture, see | |||
3562 | // https://github.com/ARM-software/abi-aa/blob/master/aapcs64/aapcs64.rst#appendix-c-mangling | |||
3563 | void CXXNameMangler::mangleAArch64FixedSveVectorType(const VectorType *T) { | |||
3564 | assert((T->getVectorKind() == VectorType::SveFixedLengthDataVector ||(static_cast <bool> ((T->getVectorKind() == VectorType ::SveFixedLengthDataVector || T->getVectorKind() == VectorType ::SveFixedLengthPredicateVector) && "expected fixed-length SVE vector!" ) ? void (0) : __assert_fail ("(T->getVectorKind() == VectorType::SveFixedLengthDataVector || T->getVectorKind() == VectorType::SveFixedLengthPredicateVector) && \"expected fixed-length SVE vector!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 3566, __extension__ __PRETTY_FUNCTION__)) | |||
3565 | T->getVectorKind() == VectorType::SveFixedLengthPredicateVector) &&(static_cast <bool> ((T->getVectorKind() == VectorType ::SveFixedLengthDataVector || T->getVectorKind() == VectorType ::SveFixedLengthPredicateVector) && "expected fixed-length SVE vector!" ) ? void (0) : __assert_fail ("(T->getVectorKind() == VectorType::SveFixedLengthDataVector || T->getVectorKind() == VectorType::SveFixedLengthPredicateVector) && \"expected fixed-length SVE vector!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 3566, __extension__ __PRETTY_FUNCTION__)) | |||
3566 | "expected fixed-length SVE vector!")(static_cast <bool> ((T->getVectorKind() == VectorType ::SveFixedLengthDataVector || T->getVectorKind() == VectorType ::SveFixedLengthPredicateVector) && "expected fixed-length SVE vector!" ) ? void (0) : __assert_fail ("(T->getVectorKind() == VectorType::SveFixedLengthDataVector || T->getVectorKind() == VectorType::SveFixedLengthPredicateVector) && \"expected fixed-length SVE vector!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 3566, __extension__ __PRETTY_FUNCTION__)); | |||
3567 | ||||
3568 | QualType EltType = T->getElementType(); | |||
3569 | assert(EltType->isBuiltinType() &&(static_cast <bool> (EltType->isBuiltinType() && "expected builtin type for fixed-length SVE vector!") ? void (0) : __assert_fail ("EltType->isBuiltinType() && \"expected builtin type for fixed-length SVE vector!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 3570, __extension__ __PRETTY_FUNCTION__)) | |||
3570 | "expected builtin type for fixed-length SVE vector!")(static_cast <bool> (EltType->isBuiltinType() && "expected builtin type for fixed-length SVE vector!") ? void (0) : __assert_fail ("EltType->isBuiltinType() && \"expected builtin type for fixed-length SVE vector!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 3570, __extension__ __PRETTY_FUNCTION__)); | |||
3571 | ||||
3572 | StringRef TypeName; | |||
3573 | switch (cast<BuiltinType>(EltType)->getKind()) { | |||
3574 | case BuiltinType::SChar: | |||
3575 | TypeName = "__SVInt8_t"; | |||
3576 | break; | |||
3577 | case BuiltinType::UChar: { | |||
3578 | if (T->getVectorKind() == VectorType::SveFixedLengthDataVector) | |||
3579 | TypeName = "__SVUint8_t"; | |||
3580 | else | |||
3581 | TypeName = "__SVBool_t"; | |||
3582 | break; | |||
3583 | } | |||
3584 | case BuiltinType::Short: | |||
3585 | TypeName = "__SVInt16_t"; | |||
3586 | break; | |||
3587 | case BuiltinType::UShort: | |||
3588 | TypeName = "__SVUint16_t"; | |||
3589 | break; | |||
3590 | case BuiltinType::Int: | |||
3591 | TypeName = "__SVInt32_t"; | |||
3592 | break; | |||
3593 | case BuiltinType::UInt: | |||
3594 | TypeName = "__SVUint32_t"; | |||
3595 | break; | |||
3596 | case BuiltinType::Long: | |||
3597 | TypeName = "__SVInt64_t"; | |||
3598 | break; | |||
3599 | case BuiltinType::ULong: | |||
3600 | TypeName = "__SVUint64_t"; | |||
3601 | break; | |||
3602 | case BuiltinType::Half: | |||
3603 | TypeName = "__SVFloat16_t"; | |||
3604 | break; | |||
3605 | case BuiltinType::Float: | |||
3606 | TypeName = "__SVFloat32_t"; | |||
3607 | break; | |||
3608 | case BuiltinType::Double: | |||
3609 | TypeName = "__SVFloat64_t"; | |||
3610 | break; | |||
3611 | case BuiltinType::BFloat16: | |||
3612 | TypeName = "__SVBfloat16_t"; | |||
3613 | break; | |||
3614 | default: | |||
3615 | llvm_unreachable("unexpected element type for fixed-length SVE vector!")::llvm::llvm_unreachable_internal("unexpected element type for fixed-length SVE vector!" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 3615); | |||
3616 | } | |||
3617 | ||||
3618 | unsigned VecSizeInBits = getASTContext().getTypeInfo(T).Width; | |||
3619 | ||||
3620 | if (T->getVectorKind() == VectorType::SveFixedLengthPredicateVector) | |||
3621 | VecSizeInBits *= 8; | |||
3622 | ||||
3623 | Out << "9__SVE_VLSI" << 'u' << TypeName.size() << TypeName << "Lj" | |||
3624 | << VecSizeInBits << "EE"; | |||
3625 | } | |||
3626 | ||||
3627 | void CXXNameMangler::mangleAArch64FixedSveVectorType( | |||
3628 | const DependentVectorType *T) { | |||
3629 | DiagnosticsEngine &Diags = Context.getDiags(); | |||
3630 | unsigned DiagID = Diags.getCustomDiagID( | |||
3631 | DiagnosticsEngine::Error, | |||
3632 | "cannot mangle this dependent fixed-length SVE vector type yet"); | |||
3633 | Diags.Report(T->getAttributeLoc(), DiagID); | |||
3634 | } | |||
3635 | ||||
3636 | // GNU extension: vector types | |||
3637 | // <type> ::= <vector-type> | |||
3638 | // <vector-type> ::= Dv <positive dimension number> _ | |||
3639 | // <extended element type> | |||
3640 | // ::= Dv [<dimension expression>] _ <element type> | |||
3641 | // <extended element type> ::= <element type> | |||
3642 | // ::= p # AltiVec vector pixel | |||
3643 | // ::= b # Altivec vector bool | |||
3644 | void CXXNameMangler::mangleType(const VectorType *T) { | |||
3645 | if ((T->getVectorKind() == VectorType::NeonVector || | |||
3646 | T->getVectorKind() == VectorType::NeonPolyVector)) { | |||
3647 | llvm::Triple Target = getASTContext().getTargetInfo().getTriple(); | |||
3648 | llvm::Triple::ArchType Arch = | |||
3649 | getASTContext().getTargetInfo().getTriple().getArch(); | |||
3650 | if ((Arch == llvm::Triple::aarch64 || | |||
3651 | Arch == llvm::Triple::aarch64_be) && !Target.isOSDarwin()) | |||
3652 | mangleAArch64NeonVectorType(T); | |||
3653 | else | |||
3654 | mangleNeonVectorType(T); | |||
3655 | return; | |||
3656 | } else if (T->getVectorKind() == VectorType::SveFixedLengthDataVector || | |||
3657 | T->getVectorKind() == VectorType::SveFixedLengthPredicateVector) { | |||
3658 | mangleAArch64FixedSveVectorType(T); | |||
3659 | return; | |||
3660 | } | |||
3661 | Out << "Dv" << T->getNumElements() << '_'; | |||
3662 | if (T->getVectorKind() == VectorType::AltiVecPixel) | |||
3663 | Out << 'p'; | |||
3664 | else if (T->getVectorKind() == VectorType::AltiVecBool) | |||
3665 | Out << 'b'; | |||
3666 | else | |||
3667 | mangleType(T->getElementType()); | |||
3668 | } | |||
3669 | ||||
3670 | void CXXNameMangler::mangleType(const DependentVectorType *T) { | |||
3671 | if ((T->getVectorKind() == VectorType::NeonVector || | |||
3672 | T->getVectorKind() == VectorType::NeonPolyVector)) { | |||
3673 | llvm::Triple Target = getASTContext().getTargetInfo().getTriple(); | |||
3674 | llvm::Triple::ArchType Arch = | |||
3675 | getASTContext().getTargetInfo().getTriple().getArch(); | |||
3676 | if ((Arch == llvm::Triple::aarch64 || Arch == llvm::Triple::aarch64_be) && | |||
3677 | !Target.isOSDarwin()) | |||
3678 | mangleAArch64NeonVectorType(T); | |||
3679 | else | |||
3680 | mangleNeonVectorType(T); | |||
3681 | return; | |||
3682 | } else if (T->getVectorKind() == VectorType::SveFixedLengthDataVector || | |||
3683 | T->getVectorKind() == VectorType::SveFixedLengthPredicateVector) { | |||
3684 | mangleAArch64FixedSveVectorType(T); | |||
3685 | return; | |||
3686 | } | |||
3687 | ||||
3688 | Out << "Dv"; | |||
3689 | mangleExpression(T->getSizeExpr()); | |||
3690 | Out << '_'; | |||
3691 | if (T->getVectorKind() == VectorType::AltiVecPixel) | |||
3692 | Out << 'p'; | |||
3693 | else if (T->getVectorKind() == VectorType::AltiVecBool) | |||
3694 | Out << 'b'; | |||
3695 | else | |||
3696 | mangleType(T->getElementType()); | |||
3697 | } | |||
3698 | ||||
3699 | void CXXNameMangler::mangleType(const ExtVectorType *T) { | |||
3700 | mangleType(static_cast<const VectorType*>(T)); | |||
3701 | } | |||
3702 | void CXXNameMangler::mangleType(const DependentSizedExtVectorType *T) { | |||
3703 | Out << "Dv"; | |||
3704 | mangleExpression(T->getSizeExpr()); | |||
3705 | Out << '_'; | |||
3706 | mangleType(T->getElementType()); | |||
3707 | } | |||
3708 | ||||
3709 | void CXXNameMangler::mangleType(const ConstantMatrixType *T) { | |||
3710 | // Mangle matrix types as a vendor extended type: | |||
3711 | // u<Len>matrix_typeI<Rows><Columns><element type>E | |||
3712 | ||||
3713 | StringRef VendorQualifier = "matrix_type"; | |||
3714 | Out << "u" << VendorQualifier.size() << VendorQualifier; | |||
3715 | ||||
3716 | Out << "I"; | |||
3717 | auto &ASTCtx = getASTContext(); | |||
3718 | unsigned BitWidth = ASTCtx.getTypeSize(ASTCtx.getSizeType()); | |||
3719 | llvm::APSInt Rows(BitWidth); | |||
3720 | Rows = T->getNumRows(); | |||
3721 | mangleIntegerLiteral(ASTCtx.getSizeType(), Rows); | |||
3722 | llvm::APSInt Columns(BitWidth); | |||
3723 | Columns = T->getNumColumns(); | |||
3724 | mangleIntegerLiteral(ASTCtx.getSizeType(), Columns); | |||
3725 | mangleType(T->getElementType()); | |||
3726 | Out << "E"; | |||
3727 | } | |||
3728 | ||||
3729 | void CXXNameMangler::mangleType(const DependentSizedMatrixType *T) { | |||
3730 | // Mangle matrix types as a vendor extended type: | |||
3731 | // u<Len>matrix_typeI<row expr><column expr><element type>E | |||
3732 | StringRef VendorQualifier = "matrix_type"; | |||
3733 | Out << "u" << VendorQualifier.size() << VendorQualifier; | |||
3734 | ||||
3735 | Out << "I"; | |||
3736 | mangleTemplateArgExpr(T->getRowExpr()); | |||
3737 | mangleTemplateArgExpr(T->getColumnExpr()); | |||
3738 | mangleType(T->getElementType()); | |||
3739 | Out << "E"; | |||
3740 | } | |||
3741 | ||||
3742 | void CXXNameMangler::mangleType(const DependentAddressSpaceType *T) { | |||
3743 | SplitQualType split = T->getPointeeType().split(); | |||
3744 | mangleQualifiers(split.Quals, T); | |||
3745 | mangleType(QualType(split.Ty, 0)); | |||
3746 | } | |||
3747 | ||||
3748 | void CXXNameMangler::mangleType(const PackExpansionType *T) { | |||
3749 | // <type> ::= Dp <type> # pack expansion (C++0x) | |||
3750 | Out << "Dp"; | |||
3751 | mangleType(T->getPattern()); | |||
3752 | } | |||
3753 | ||||
3754 | void CXXNameMangler::mangleType(const ObjCInterfaceType *T) { | |||
3755 | mangleSourceName(T->getDecl()->getIdentifier()); | |||
3756 | } | |||
3757 | ||||
3758 | void CXXNameMangler::mangleType(const ObjCObjectType *T) { | |||
3759 | // Treat __kindof as a vendor extended type qualifier. | |||
3760 | if (T->isKindOfType()) | |||
3761 | Out << "U8__kindof"; | |||
3762 | ||||
3763 | if (!T->qual_empty()) { | |||
3764 | // Mangle protocol qualifiers. | |||
3765 | SmallString<64> QualStr; | |||
3766 | llvm::raw_svector_ostream QualOS(QualStr); | |||
3767 | QualOS << "objcproto"; | |||
3768 | for (const auto *I : T->quals()) { | |||
3769 | StringRef name = I->getName(); | |||
3770 | QualOS << name.size() << name; | |||
3771 | } | |||
3772 | Out << 'U' << QualStr.size() << QualStr; | |||
3773 | } | |||
3774 | ||||
3775 | mangleType(T->getBaseType()); | |||
3776 | ||||
3777 | if (T->isSpecialized()) { | |||
3778 | // Mangle type arguments as I <type>+ E | |||
3779 | Out << 'I'; | |||
3780 | for (auto typeArg : T->getTypeArgs()) | |||
3781 | mangleType(typeArg); | |||
3782 | Out << 'E'; | |||
3783 | } | |||
3784 | } | |||
3785 | ||||
3786 | void CXXNameMangler::mangleType(const BlockPointerType *T) { | |||
3787 | Out << "U13block_pointer"; | |||
3788 | mangleType(T->getPointeeType()); | |||
3789 | } | |||
3790 | ||||
3791 | void CXXNameMangler::mangleType(const InjectedClassNameType *T) { | |||
3792 | // Mangle injected class name types as if the user had written the | |||
3793 | // specialization out fully. It may not actually be possible to see | |||
3794 | // this mangling, though. | |||
3795 | mangleType(T->getInjectedSpecializationType()); | |||
3796 | } | |||
3797 | ||||
3798 | void CXXNameMangler::mangleType(const TemplateSpecializationType *T) { | |||
3799 | if (TemplateDecl *TD = T->getTemplateName().getAsTemplateDecl()) { | |||
3800 | mangleTemplateName(TD, T->getArgs(), T->getNumArgs()); | |||
3801 | } else { | |||
3802 | if (mangleSubstitution(QualType(T, 0))) | |||
3803 | return; | |||
3804 | ||||
3805 | mangleTemplatePrefix(T->getTemplateName()); | |||
3806 | ||||
3807 | // FIXME: GCC does not appear to mangle the template arguments when | |||
3808 | // the template in question is a dependent template name. Should we | |||
3809 | // emulate that badness? | |||
3810 | mangleTemplateArgs(T->getTemplateName(), T->getArgs(), T->getNumArgs()); | |||
3811 | addSubstitution(QualType(T, 0)); | |||
3812 | } | |||
3813 | } | |||
3814 | ||||
3815 | void CXXNameMangler::mangleType(const DependentNameType *T) { | |||
3816 | // Proposal by cxx-abi-dev, 2014-03-26 | |||
3817 | // <class-enum-type> ::= <name> # non-dependent or dependent type name or | |||
3818 | // # dependent elaborated type specifier using | |||
3819 | // # 'typename' | |||
3820 | // ::= Ts <name> # dependent elaborated type specifier using | |||
3821 | // # 'struct' or 'class' | |||
3822 | // ::= Tu <name> # dependent elaborated type specifier using | |||
3823 | // # 'union' | |||
3824 | // ::= Te <name> # dependent elaborated type specifier using | |||
3825 | // # 'enum' | |||
3826 | switch (T->getKeyword()) { | |||
3827 | case ETK_None: | |||
3828 | case ETK_Typename: | |||
3829 | break; | |||
3830 | case ETK_Struct: | |||
3831 | case ETK_Class: | |||
3832 | case ETK_Interface: | |||
3833 | Out << "Ts"; | |||
3834 | break; | |||
3835 | case ETK_Union: | |||
3836 | Out << "Tu"; | |||
3837 | break; | |||
3838 | case ETK_Enum: | |||
3839 | Out << "Te"; | |||
3840 | break; | |||
3841 | } | |||
3842 | // Typename types are always nested | |||
3843 | Out << 'N'; | |||
3844 | manglePrefix(T->getQualifier()); | |||
3845 | mangleSourceName(T->getIdentifier()); | |||
3846 | Out << 'E'; | |||
3847 | } | |||
3848 | ||||
3849 | void CXXNameMangler::mangleType(const DependentTemplateSpecializationType *T) { | |||
3850 | // Dependently-scoped template types are nested if they have a prefix. | |||
3851 | Out << 'N'; | |||
3852 | ||||
3853 | // TODO: avoid making this TemplateName. | |||
3854 | TemplateName Prefix = | |||
3855 | getASTContext().getDependentTemplateName(T->getQualifier(), | |||
3856 | T->getIdentifier()); | |||
3857 | mangleTemplatePrefix(Prefix); | |||
3858 | ||||
3859 | // FIXME: GCC does not appear to mangle the template arguments when | |||
3860 | // the template in question is a dependent template name. Should we | |||
3861 | // emulate that badness? | |||
3862 | mangleTemplateArgs(Prefix, T->getArgs(), T->getNumArgs()); | |||
3863 | Out << 'E'; | |||
3864 | } | |||
3865 | ||||
3866 | void CXXNameMangler::mangleType(const TypeOfType *T) { | |||
3867 | // FIXME: this is pretty unsatisfactory, but there isn't an obvious | |||
3868 | // "extension with parameters" mangling. | |||
3869 | Out << "u6typeof"; | |||
3870 | } | |||
3871 | ||||
3872 | void CXXNameMangler::mangleType(const TypeOfExprType *T) { | |||
3873 | // FIXME: this is pretty unsatisfactory, but there isn't an obvious | |||
3874 | // "extension with parameters" mangling. | |||
3875 | Out << "u6typeof"; | |||
3876 | } | |||
3877 | ||||
3878 | void CXXNameMangler::mangleType(const DecltypeType *T) { | |||
3879 | Expr *E = T->getUnderlyingExpr(); | |||
3880 | ||||
3881 | // type ::= Dt <expression> E # decltype of an id-expression | |||
3882 | // # or class member access | |||
3883 | // ::= DT <expression> E # decltype of an expression | |||
3884 | ||||
3885 | // This purports to be an exhaustive list of id-expressions and | |||
3886 | // class member accesses. Note that we do not ignore parentheses; | |||
3887 | // parentheses change the semantics of decltype for these | |||
3888 | // expressions (and cause the mangler to use the other form). | |||
3889 | if (isa<DeclRefExpr>(E) || | |||
3890 | isa<MemberExpr>(E) || | |||
3891 | isa<UnresolvedLookupExpr>(E) || | |||
3892 | isa<DependentScopeDeclRefExpr>(E) || | |||
3893 | isa<CXXDependentScopeMemberExpr>(E) || | |||
3894 | isa<UnresolvedMemberExpr>(E)) | |||
3895 | Out << "Dt"; | |||
3896 | else | |||
3897 | Out << "DT"; | |||
3898 | mangleExpression(E); | |||
3899 | Out << 'E'; | |||
3900 | } | |||
3901 | ||||
3902 | void CXXNameMangler::mangleType(const UnaryTransformType *T) { | |||
3903 | // If this is dependent, we need to record that. If not, we simply | |||
3904 | // mangle it as the underlying type since they are equivalent. | |||
3905 | if (T->isDependentType()) { | |||
3906 | Out << 'U'; | |||
3907 | ||||
3908 | switch (T->getUTTKind()) { | |||
3909 | case UnaryTransformType::EnumUnderlyingType: | |||
3910 | Out << "3eut"; | |||
3911 | break; | |||
3912 | } | |||
3913 | } | |||
3914 | ||||
3915 | mangleType(T->getBaseType()); | |||
3916 | } | |||
3917 | ||||
3918 | void CXXNameMangler::mangleType(const AutoType *T) { | |||
3919 | assert(T->getDeducedType().isNull() &&(static_cast <bool> (T->getDeducedType().isNull() && "Deduced AutoType shouldn't be handled here!") ? void (0) : __assert_fail ("T->getDeducedType().isNull() && \"Deduced AutoType shouldn't be handled here!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 3920, __extension__ __PRETTY_FUNCTION__)) | |||
3920 | "Deduced AutoType shouldn't be handled here!")(static_cast <bool> (T->getDeducedType().isNull() && "Deduced AutoType shouldn't be handled here!") ? void (0) : __assert_fail ("T->getDeducedType().isNull() && \"Deduced AutoType shouldn't be handled here!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 3920, __extension__ __PRETTY_FUNCTION__)); | |||
3921 | assert(T->getKeyword() != AutoTypeKeyword::GNUAutoType &&(static_cast <bool> (T->getKeyword() != AutoTypeKeyword ::GNUAutoType && "shouldn't need to mangle __auto_type!" ) ? void (0) : __assert_fail ("T->getKeyword() != AutoTypeKeyword::GNUAutoType && \"shouldn't need to mangle __auto_type!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 3922, __extension__ __PRETTY_FUNCTION__)) | |||
3922 | "shouldn't need to mangle __auto_type!")(static_cast <bool> (T->getKeyword() != AutoTypeKeyword ::GNUAutoType && "shouldn't need to mangle __auto_type!" ) ? void (0) : __assert_fail ("T->getKeyword() != AutoTypeKeyword::GNUAutoType && \"shouldn't need to mangle __auto_type!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 3922, __extension__ __PRETTY_FUNCTION__)); | |||
3923 | // <builtin-type> ::= Da # auto | |||
3924 | // ::= Dc # decltype(auto) | |||
3925 | Out << (T->isDecltypeAuto() ? "Dc" : "Da"); | |||
3926 | } | |||
3927 | ||||
3928 | void CXXNameMangler::mangleType(const DeducedTemplateSpecializationType *T) { | |||
3929 | QualType Deduced = T->getDeducedType(); | |||
3930 | if (!Deduced.isNull()) | |||
3931 | return mangleType(Deduced); | |||
3932 | ||||
3933 | TemplateDecl *TD = T->getTemplateName().getAsTemplateDecl(); | |||
3934 | assert(TD && "shouldn't form deduced TST unless we know we have a template")(static_cast <bool> (TD && "shouldn't form deduced TST unless we know we have a template" ) ? void (0) : __assert_fail ("TD && \"shouldn't form deduced TST unless we know we have a template\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 3934, __extension__ __PRETTY_FUNCTION__)); | |||
3935 | ||||
3936 | if (mangleSubstitution(TD)) | |||
3937 | return; | |||
3938 | ||||
3939 | mangleName(GlobalDecl(TD)); | |||
3940 | addSubstitution(TD); | |||
3941 | } | |||
3942 | ||||
3943 | void CXXNameMangler::mangleType(const AtomicType *T) { | |||
3944 | // <type> ::= U <source-name> <type> # vendor extended type qualifier | |||
3945 | // (Until there's a standardized mangling...) | |||
3946 | Out << "U7_Atomic"; | |||
3947 | mangleType(T->getValueType()); | |||
3948 | } | |||
3949 | ||||
3950 | void CXXNameMangler::mangleType(const PipeType *T) { | |||
3951 | // Pipe type mangling rules are described in SPIR 2.0 specification | |||
3952 | // A.1 Data types and A.3 Summary of changes | |||
3953 | // <type> ::= 8ocl_pipe | |||
3954 | Out << "8ocl_pipe"; | |||
3955 | } | |||
3956 | ||||
3957 | void CXXNameMangler::mangleType(const ExtIntType *T) { | |||
3958 | Out << "U7_ExtInt"; | |||
3959 | llvm::APSInt BW(32, true); | |||
3960 | BW = T->getNumBits(); | |||
3961 | TemplateArgument TA(Context.getASTContext(), BW, getASTContext().IntTy); | |||
3962 | mangleTemplateArgs(TemplateName(), &TA, 1); | |||
3963 | if (T->isUnsigned()) | |||
3964 | Out << "j"; | |||
3965 | else | |||
3966 | Out << "i"; | |||
3967 | } | |||
3968 | ||||
3969 | void CXXNameMangler::mangleType(const DependentExtIntType *T) { | |||
3970 | Out << "U7_ExtInt"; | |||
3971 | TemplateArgument TA(T->getNumBitsExpr()); | |||
3972 | mangleTemplateArgs(TemplateName(), &TA, 1); | |||
3973 | if (T->isUnsigned()) | |||
3974 | Out << "j"; | |||
3975 | else | |||
3976 | Out << "i"; | |||
3977 | } | |||
3978 | ||||
3979 | void CXXNameMangler::mangleIntegerLiteral(QualType T, | |||
3980 | const llvm::APSInt &Value) { | |||
3981 | // <expr-primary> ::= L <type> <value number> E # integer literal | |||
3982 | Out << 'L'; | |||
3983 | ||||
3984 | mangleType(T); | |||
3985 | if (T->isBooleanType()) { | |||
3986 | // Boolean values are encoded as 0/1. | |||
3987 | Out << (Value.getBoolValue() ? '1' : '0'); | |||
3988 | } else { | |||
3989 | mangleNumber(Value); | |||
3990 | } | |||
3991 | Out << 'E'; | |||
3992 | ||||
3993 | } | |||
3994 | ||||
3995 | void CXXNameMangler::mangleMemberExprBase(const Expr *Base, bool IsArrow) { | |||
3996 | // Ignore member expressions involving anonymous unions. | |||
3997 | while (const auto *RT = Base->getType()->getAs<RecordType>()) { | |||
3998 | if (!RT->getDecl()->isAnonymousStructOrUnion()) | |||
3999 | break; | |||
4000 | const auto *ME = dyn_cast<MemberExpr>(Base); | |||
4001 | if (!ME) | |||
4002 | break; | |||
4003 | Base = ME->getBase(); | |||
4004 | IsArrow = ME->isArrow(); | |||
4005 | } | |||
4006 | ||||
4007 | if (Base->isImplicitCXXThis()) { | |||
4008 | // Note: GCC mangles member expressions to the implicit 'this' as | |||
4009 | // *this., whereas we represent them as this->. The Itanium C++ ABI | |||
4010 | // does not specify anything here, so we follow GCC. | |||
4011 | Out << "dtdefpT"; | |||
4012 | } else { | |||
4013 | Out << (IsArrow ? "pt" : "dt"); | |||
4014 | mangleExpression(Base); | |||
4015 | } | |||
4016 | } | |||
4017 | ||||
4018 | /// Mangles a member expression. | |||
4019 | void CXXNameMangler::mangleMemberExpr(const Expr *base, | |||
4020 | bool isArrow, | |||
4021 | NestedNameSpecifier *qualifier, | |||
4022 | NamedDecl *firstQualifierLookup, | |||
4023 | DeclarationName member, | |||
4024 | const TemplateArgumentLoc *TemplateArgs, | |||
4025 | unsigned NumTemplateArgs, | |||
4026 | unsigned arity) { | |||
4027 | // <expression> ::= dt <expression> <unresolved-name> | |||
4028 | // ::= pt <expression> <unresolved-name> | |||
4029 | if (base) | |||
4030 | mangleMemberExprBase(base, isArrow); | |||
4031 | mangleUnresolvedName(qualifier, member, TemplateArgs, NumTemplateArgs, arity); | |||
4032 | } | |||
4033 | ||||
4034 | /// Look at the callee of the given call expression and determine if | |||
4035 | /// it's a parenthesized id-expression which would have triggered ADL | |||
4036 | /// otherwise. | |||
4037 | static bool isParenthesizedADLCallee(const CallExpr *call) { | |||
4038 | const Expr *callee = call->getCallee(); | |||
4039 | const Expr *fn = callee->IgnoreParens(); | |||
4040 | ||||
4041 | // Must be parenthesized. IgnoreParens() skips __extension__ nodes, | |||
4042 | // too, but for those to appear in the callee, it would have to be | |||
4043 | // parenthesized. | |||
4044 | if (callee == fn) return false; | |||
4045 | ||||
4046 | // Must be an unresolved lookup. | |||
4047 | const UnresolvedLookupExpr *lookup = dyn_cast<UnresolvedLookupExpr>(fn); | |||
4048 | if (!lookup) return false; | |||
4049 | ||||
4050 | assert(!lookup->requiresADL())(static_cast <bool> (!lookup->requiresADL()) ? void ( 0) : __assert_fail ("!lookup->requiresADL()", "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 4050, __extension__ __PRETTY_FUNCTION__)); | |||
4051 | ||||
4052 | // Must be an unqualified lookup. | |||
4053 | if (lookup->getQualifier()) return false; | |||
4054 | ||||
4055 | // Must not have found a class member. Note that if one is a class | |||
4056 | // member, they're all class members. | |||
4057 | if (lookup->getNumDecls() > 0 && | |||
4058 | (*lookup->decls_begin())->isCXXClassMember()) | |||
4059 | return false; | |||
4060 | ||||
4061 | // Otherwise, ADL would have been triggered. | |||
4062 | return true; | |||
4063 | } | |||
4064 | ||||
4065 | void CXXNameMangler::mangleCastExpression(const Expr *E, StringRef CastEncoding) { | |||
4066 | const ExplicitCastExpr *ECE = cast<ExplicitCastExpr>(E); | |||
4067 | Out << CastEncoding; | |||
4068 | mangleType(ECE->getType()); | |||
4069 | mangleExpression(ECE->getSubExpr()); | |||
4070 | } | |||
4071 | ||||
4072 | void CXXNameMangler::mangleInitListElements(const InitListExpr *InitList) { | |||
4073 | if (auto *Syntactic = InitList->getSyntacticForm()) | |||
4074 | InitList = Syntactic; | |||
4075 | for (unsigned i = 0, e = InitList->getNumInits(); i != e; ++i) | |||
4076 | mangleExpression(InitList->getInit(i)); | |||
4077 | } | |||
4078 | ||||
4079 | void CXXNameMangler::mangleExpression(const Expr *E, unsigned Arity, | |||
4080 | bool AsTemplateArg) { | |||
4081 | // <expression> ::= <unary operator-name> <expression> | |||
4082 | // ::= <binary operator-name> <expression> <expression> | |||
4083 | // ::= <trinary operator-name> <expression> <expression> <expression> | |||
4084 | // ::= cv <type> expression # conversion with one argument | |||
4085 | // ::= cv <type> _ <expression>* E # conversion with a different number of arguments | |||
4086 | // ::= dc <type> <expression> # dynamic_cast<type> (expression) | |||
4087 | // ::= sc <type> <expression> # static_cast<type> (expression) | |||
4088 | // ::= cc <type> <expression> # const_cast<type> (expression) | |||
4089 | // ::= rc <type> <expression> # reinterpret_cast<type> (expression) | |||
4090 | // ::= st <type> # sizeof (a type) | |||
4091 | // ::= at <type> # alignof (a type) | |||
4092 | // ::= <template-param> | |||
4093 | // ::= <function-param> | |||
4094 | // ::= fpT # 'this' expression (part of <function-param>) | |||
4095 | // ::= sr <type> <unqualified-name> # dependent name | |||
4096 | // ::= sr <type> <unqualified-name> <template-args> # dependent template-id | |||
4097 | // ::= ds <expression> <expression> # expr.*expr | |||
4098 | // ::= sZ <template-param> # size of a parameter pack | |||
4099 | // ::= sZ <function-param> # size of a function parameter pack | |||
4100 | // ::= u <source-name> <template-arg>* E # vendor extended expression | |||
4101 | // ::= <expr-primary> | |||
4102 | // <expr-primary> ::= L <type> <value number> E # integer literal | |||
4103 | // ::= L <type> <value float> E # floating literal | |||
4104 | // ::= L <type> <string type> E # string literal | |||
4105 | // ::= L <nullptr type> E # nullptr literal "LDnE" | |||
4106 | // ::= L <pointer type> 0 E # null pointer template argument | |||
4107 | // ::= L <type> <real-part float> _ <imag-part float> E # complex floating point literal (C99); not used by clang | |||
4108 | // ::= L <mangled-name> E # external name | |||
4109 | QualType ImplicitlyConvertedToType; | |||
4110 | ||||
4111 | // A top-level expression that's not <expr-primary> needs to be wrapped in | |||
4112 | // X...E in a template arg. | |||
4113 | bool IsPrimaryExpr = true; | |||
4114 | auto NotPrimaryExpr = [&] { | |||
4115 | if (AsTemplateArg && IsPrimaryExpr) | |||
4116 | Out << 'X'; | |||
4117 | IsPrimaryExpr = false; | |||
4118 | }; | |||
4119 | ||||
4120 | auto MangleDeclRefExpr = [&](const NamedDecl *D) { | |||
4121 | switch (D->getKind()) { | |||
4122 | default: | |||
4123 | // <expr-primary> ::= L <mangled-name> E # external name | |||
4124 | Out << 'L'; | |||
4125 | mangle(D); | |||
4126 | Out << 'E'; | |||
4127 | break; | |||
4128 | ||||
4129 | case Decl::ParmVar: | |||
4130 | NotPrimaryExpr(); | |||
4131 | mangleFunctionParam(cast<ParmVarDecl>(D)); | |||
4132 | break; | |||
4133 | ||||
4134 | case Decl::EnumConstant: { | |||
4135 | // <expr-primary> | |||
4136 | const EnumConstantDecl *ED = cast<EnumConstantDecl>(D); | |||
4137 | mangleIntegerLiteral(ED->getType(), ED->getInitVal()); | |||
4138 | break; | |||
4139 | } | |||
4140 | ||||
4141 | case Decl::NonTypeTemplateParm: | |||
4142 | NotPrimaryExpr(); | |||
4143 | const NonTypeTemplateParmDecl *PD = cast<NonTypeTemplateParmDecl>(D); | |||
4144 | mangleTemplateParameter(PD->getDepth(), PD->getIndex()); | |||
4145 | break; | |||
4146 | } | |||
4147 | }; | |||
4148 | ||||
4149 | // 'goto recurse' is used when handling a simple "unwrapping" node which | |||
4150 | // produces no output, where ImplicitlyConvertedToType and AsTemplateArg need | |||
4151 | // to be preserved. | |||
4152 | recurse: | |||
4153 | switch (E->getStmtClass()) { | |||
4154 | case Expr::NoStmtClass: | |||
4155 | #define ABSTRACT_STMT(Type) | |||
4156 | #define EXPR(Type, Base) | |||
4157 | #define STMT(Type, Base) \ | |||
4158 | case Expr::Type##Class: | |||
4159 | #include "clang/AST/StmtNodes.inc" | |||
4160 | // fallthrough | |||
4161 | ||||
4162 | // These all can only appear in local or variable-initialization | |||
4163 | // contexts and so should never appear in a mangling. | |||
4164 | case Expr::AddrLabelExprClass: | |||
4165 | case Expr::DesignatedInitUpdateExprClass: | |||
4166 | case Expr::ImplicitValueInitExprClass: | |||
4167 | case Expr::ArrayInitLoopExprClass: | |||
4168 | case Expr::ArrayInitIndexExprClass: | |||
4169 | case Expr::NoInitExprClass: | |||
4170 | case Expr::ParenListExprClass: | |||
4171 | case Expr::LambdaExprClass: | |||
4172 | case Expr::MSPropertyRefExprClass: | |||
4173 | case Expr::MSPropertySubscriptExprClass: | |||
4174 | case Expr::TypoExprClass: // This should no longer exist in the AST by now. | |||
4175 | case Expr::RecoveryExprClass: | |||
4176 | case Expr::OMPArraySectionExprClass: | |||
4177 | case Expr::OMPArrayShapingExprClass: | |||
4178 | case Expr::OMPIteratorExprClass: | |||
4179 | case Expr::CXXInheritedCtorInitExprClass: | |||
4180 | llvm_unreachable("unexpected statement kind")::llvm::llvm_unreachable_internal("unexpected statement kind" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 4180); | |||
4181 | ||||
4182 | case Expr::ConstantExprClass: | |||
4183 | E = cast<ConstantExpr>(E)->getSubExpr(); | |||
4184 | goto recurse; | |||
4185 | ||||
4186 | // FIXME: invent manglings for all these. | |||
4187 | case Expr::BlockExprClass: | |||
4188 | case Expr::ChooseExprClass: | |||
4189 | case Expr::CompoundLiteralExprClass: | |||
4190 | case Expr::ExtVectorElementExprClass: | |||
4191 | case Expr::GenericSelectionExprClass: | |||
4192 | case Expr::ObjCEncodeExprClass: | |||
4193 | case Expr::ObjCIsaExprClass: | |||
4194 | case Expr::ObjCIvarRefExprClass: | |||
4195 | case Expr::ObjCMessageExprClass: | |||
4196 | case Expr::ObjCPropertyRefExprClass: | |||
4197 | case Expr::ObjCProtocolExprClass: | |||
4198 | case Expr::ObjCSelectorExprClass: | |||
4199 | case Expr::ObjCStringLiteralClass: | |||
4200 | case Expr::ObjCBoxedExprClass: | |||
4201 | case Expr::ObjCArrayLiteralClass: | |||
4202 | case Expr::ObjCDictionaryLiteralClass: | |||
4203 | case Expr::ObjCSubscriptRefExprClass: | |||
4204 | case Expr::ObjCIndirectCopyRestoreExprClass: | |||
4205 | case Expr::ObjCAvailabilityCheckExprClass: | |||
4206 | case Expr::OffsetOfExprClass: | |||
4207 | case Expr::PredefinedExprClass: | |||
4208 | case Expr::ShuffleVectorExprClass: | |||
4209 | case Expr::ConvertVectorExprClass: | |||
4210 | case Expr::StmtExprClass: | |||
4211 | case Expr::TypeTraitExprClass: | |||
4212 | case Expr::RequiresExprClass: | |||
4213 | case Expr::ArrayTypeTraitExprClass: | |||
4214 | case Expr::ExpressionTraitExprClass: | |||
4215 | case Expr::VAArgExprClass: | |||
4216 | case Expr::CUDAKernelCallExprClass: | |||
4217 | case Expr::AsTypeExprClass: | |||
4218 | case Expr::PseudoObjectExprClass: | |||
4219 | case Expr::AtomicExprClass: | |||
4220 | case Expr::SourceLocExprClass: | |||
4221 | case Expr::BuiltinBitCastExprClass: | |||
4222 | { | |||
4223 | NotPrimaryExpr(); | |||
4224 | if (!NullOut) { | |||
4225 | // As bad as this diagnostic is, it's better than crashing. | |||
4226 | DiagnosticsEngine &Diags = Context.getDiags(); | |||
4227 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, | |||
4228 | "cannot yet mangle expression type %0"); | |||
4229 | Diags.Report(E->getExprLoc(), DiagID) | |||
4230 | << E->getStmtClassName() << E->getSourceRange(); | |||
4231 | return; | |||
4232 | } | |||
4233 | break; | |||
4234 | } | |||
4235 | ||||
4236 | case Expr::CXXUuidofExprClass: { | |||
4237 | NotPrimaryExpr(); | |||
4238 | const CXXUuidofExpr *UE = cast<CXXUuidofExpr>(E); | |||
4239 | // As of clang 12, uuidof uses the vendor extended expression | |||
4240 | // mangling. Previously, it used a special-cased nonstandard extension. | |||
4241 | if (Context.getASTContext().getLangOpts().getClangABICompat() > | |||
4242 | LangOptions::ClangABI::Ver11) { | |||
4243 | Out << "u8__uuidof"; | |||
4244 | if (UE->isTypeOperand()) | |||
4245 | mangleType(UE->getTypeOperand(Context.getASTContext())); | |||
4246 | else | |||
4247 | mangleTemplateArgExpr(UE->getExprOperand()); | |||
4248 | Out << 'E'; | |||
4249 | } else { | |||
4250 | if (UE->isTypeOperand()) { | |||
4251 | QualType UuidT = UE->getTypeOperand(Context.getASTContext()); | |||
4252 | Out << "u8__uuidoft"; | |||
4253 | mangleType(UuidT); | |||
4254 | } else { | |||
4255 | Expr *UuidExp = UE->getExprOperand(); | |||
4256 | Out << "u8__uuidofz"; | |||
4257 | mangleExpression(UuidExp); | |||
4258 | } | |||
4259 | } | |||
4260 | break; | |||
4261 | } | |||
4262 | ||||
4263 | // Even gcc-4.5 doesn't mangle this. | |||
4264 | case Expr::BinaryConditionalOperatorClass: { | |||
4265 | NotPrimaryExpr(); | |||
4266 | DiagnosticsEngine &Diags = Context.getDiags(); | |||
4267 | unsigned DiagID = | |||
4268 | Diags.getCustomDiagID(DiagnosticsEngine::Error, | |||
4269 | "?: operator with omitted middle operand cannot be mangled"); | |||
4270 | Diags.Report(E->getExprLoc(), DiagID) | |||
4271 | << E->getStmtClassName() << E->getSourceRange(); | |||
4272 | return; | |||
4273 | } | |||
4274 | ||||
4275 | // These are used for internal purposes and cannot be meaningfully mangled. | |||
4276 | case Expr::OpaqueValueExprClass: | |||
4277 | llvm_unreachable("cannot mangle opaque value; mangling wrong thing?")::llvm::llvm_unreachable_internal("cannot mangle opaque value; mangling wrong thing?" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 4277); | |||
4278 | ||||
4279 | case Expr::InitListExprClass: { | |||
4280 | NotPrimaryExpr(); | |||
4281 | Out << "il"; | |||
4282 | mangleInitListElements(cast<InitListExpr>(E)); | |||
4283 | Out << "E"; | |||
4284 | break; | |||
4285 | } | |||
4286 | ||||
4287 | case Expr::DesignatedInitExprClass: { | |||
4288 | NotPrimaryExpr(); | |||
4289 | auto *DIE = cast<DesignatedInitExpr>(E); | |||
4290 | for (const auto &Designator : DIE->designators()) { | |||
4291 | if (Designator.isFieldDesignator()) { | |||
4292 | Out << "di"; | |||
4293 | mangleSourceName(Designator.getFieldName()); | |||
4294 | } else if (Designator.isArrayDesignator()) { | |||
4295 | Out << "dx"; | |||
4296 | mangleExpression(DIE->getArrayIndex(Designator)); | |||
4297 | } else { | |||
4298 | assert(Designator.isArrayRangeDesignator() &&(static_cast <bool> (Designator.isArrayRangeDesignator( ) && "unknown designator kind") ? void (0) : __assert_fail ("Designator.isArrayRangeDesignator() && \"unknown designator kind\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 4299, __extension__ __PRETTY_FUNCTION__)) | |||
4299 | "unknown designator kind")(static_cast <bool> (Designator.isArrayRangeDesignator( ) && "unknown designator kind") ? void (0) : __assert_fail ("Designator.isArrayRangeDesignator() && \"unknown designator kind\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 4299, __extension__ __PRETTY_FUNCTION__)); | |||
4300 | Out << "dX"; | |||
4301 | mangleExpression(DIE->getArrayRangeStart(Designator)); | |||
4302 | mangleExpression(DIE->getArrayRangeEnd(Designator)); | |||
4303 | } | |||
4304 | } | |||
4305 | mangleExpression(DIE->getInit()); | |||
4306 | break; | |||
4307 | } | |||
4308 | ||||
4309 | case Expr::CXXDefaultArgExprClass: | |||
4310 | E = cast<CXXDefaultArgExpr>(E)->getExpr(); | |||
4311 | goto recurse; | |||
4312 | ||||
4313 | case Expr::CXXDefaultInitExprClass: | |||
4314 | E = cast<CXXDefaultInitExpr>(E)->getExpr(); | |||
4315 | goto recurse; | |||
4316 | ||||
4317 | case Expr::CXXStdInitializerListExprClass: | |||
4318 | E = cast<CXXStdInitializerListExpr>(E)->getSubExpr(); | |||
4319 | goto recurse; | |||
4320 | ||||
4321 | case Expr::SubstNonTypeTemplateParmExprClass: | |||
4322 | E = cast<SubstNonTypeTemplateParmExpr>(E)->getReplacement(); | |||
4323 | goto recurse; | |||
4324 | ||||
4325 | case Expr::UserDefinedLiteralClass: | |||
4326 | // We follow g++'s approach of mangling a UDL as a call to the literal | |||
4327 | // operator. | |||
4328 | case Expr::CXXMemberCallExprClass: // fallthrough | |||
4329 | case Expr::CallExprClass: { | |||
4330 | NotPrimaryExpr(); | |||
4331 | const CallExpr *CE = cast<CallExpr>(E); | |||
4332 | ||||
4333 | // <expression> ::= cp <simple-id> <expression>* E | |||
4334 | // We use this mangling only when the call would use ADL except | |||
4335 | // for being parenthesized. Per discussion with David | |||
4336 | // Vandervoorde, 2011.04.25. | |||
4337 | if (isParenthesizedADLCallee(CE)) { | |||
4338 | Out << "cp"; | |||
4339 | // The callee here is a parenthesized UnresolvedLookupExpr with | |||
4340 | // no qualifier and should always get mangled as a <simple-id> | |||
4341 | // anyway. | |||
4342 | ||||
4343 | // <expression> ::= cl <expression>* E | |||
4344 | } else { | |||
4345 | Out << "cl"; | |||
4346 | } | |||
4347 | ||||
4348 | unsigned CallArity = CE->getNumArgs(); | |||
4349 | for (const Expr *Arg : CE->arguments()) | |||
4350 | if (isa<PackExpansionExpr>(Arg)) | |||
4351 | CallArity = UnknownArity; | |||
4352 | ||||
4353 | mangleExpression(CE->getCallee(), CallArity); | |||
4354 | for (const Expr *Arg : CE->arguments()) | |||
4355 | mangleExpression(Arg); | |||
4356 | Out << 'E'; | |||
4357 | break; | |||
4358 | } | |||
4359 | ||||
4360 | case Expr::CXXNewExprClass: { | |||
4361 | NotPrimaryExpr(); | |||
4362 | const CXXNewExpr *New = cast<CXXNewExpr>(E); | |||
4363 | if (New->isGlobalNew()) Out << "gs"; | |||
4364 | Out << (New->isArray() ? "na" : "nw"); | |||
4365 | for (CXXNewExpr::const_arg_iterator I = New->placement_arg_begin(), | |||
4366 | E = New->placement_arg_end(); I != E; ++I) | |||
4367 | mangleExpression(*I); | |||
4368 | Out << '_'; | |||
4369 | mangleType(New->getAllocatedType()); | |||
4370 | if (New->hasInitializer()) { | |||
4371 | if (New->getInitializationStyle() == CXXNewExpr::ListInit) | |||
4372 | Out << "il"; | |||
4373 | else | |||
4374 | Out << "pi"; | |||
4375 | const Expr *Init = New->getInitializer(); | |||
4376 | if (const CXXConstructExpr *CCE = dyn_cast<CXXConstructExpr>(Init)) { | |||
4377 | // Directly inline the initializers. | |||
4378 | for (CXXConstructExpr::const_arg_iterator I = CCE->arg_begin(), | |||
4379 | E = CCE->arg_end(); | |||
4380 | I != E; ++I) | |||
4381 | mangleExpression(*I); | |||
4382 | } else if (const ParenListExpr *PLE = dyn_cast<ParenListExpr>(Init)) { | |||
4383 | for (unsigned i = 0, e = PLE->getNumExprs(); i != e; ++i) | |||
4384 | mangleExpression(PLE->getExpr(i)); | |||
4385 | } else if (New->getInitializationStyle() == CXXNewExpr::ListInit && | |||
4386 | isa<InitListExpr>(Init)) { | |||
4387 | // Only take InitListExprs apart for list-initialization. | |||
4388 | mangleInitListElements(cast<InitListExpr>(Init)); | |||
4389 | } else | |||
4390 | mangleExpression(Init); | |||
4391 | } | |||
4392 | Out << 'E'; | |||
4393 | break; | |||
4394 | } | |||
4395 | ||||
4396 | case Expr::CXXPseudoDestructorExprClass: { | |||
4397 | NotPrimaryExpr(); | |||
4398 | const auto *PDE = cast<CXXPseudoDestructorExpr>(E); | |||
4399 | if (const Expr *Base = PDE->getBase()) | |||
4400 | mangleMemberExprBase(Base, PDE->isArrow()); | |||
4401 | NestedNameSpecifier *Qualifier = PDE->getQualifier(); | |||
4402 | if (TypeSourceInfo *ScopeInfo = PDE->getScopeTypeInfo()) { | |||
4403 | if (Qualifier) { | |||
4404 | mangleUnresolvedPrefix(Qualifier, | |||
4405 | /*recursive=*/true); | |||
4406 | mangleUnresolvedTypeOrSimpleId(ScopeInfo->getType()); | |||
4407 | Out << 'E'; | |||
4408 | } else { | |||
4409 | Out << "sr"; | |||
4410 | if (!mangleUnresolvedTypeOrSimpleId(ScopeInfo->getType())) | |||
4411 | Out << 'E'; | |||
4412 | } | |||
4413 | } else if (Qualifier) { | |||
4414 | mangleUnresolvedPrefix(Qualifier); | |||
4415 | } | |||
4416 | // <base-unresolved-name> ::= dn <destructor-name> | |||
4417 | Out << "dn"; | |||
4418 | QualType DestroyedType = PDE->getDestroyedType(); | |||
4419 | mangleUnresolvedTypeOrSimpleId(DestroyedType); | |||
4420 | break; | |||
4421 | } | |||
4422 | ||||
4423 | case Expr::MemberExprClass: { | |||
4424 | NotPrimaryExpr(); | |||
4425 | const MemberExpr *ME = cast<MemberExpr>(E); | |||
4426 | mangleMemberExpr(ME->getBase(), ME->isArrow(), | |||
4427 | ME->getQualifier(), nullptr, | |||
4428 | ME->getMemberDecl()->getDeclName(), | |||
4429 | ME->getTemplateArgs(), ME->getNumTemplateArgs(), | |||
4430 | Arity); | |||
4431 | break; | |||
4432 | } | |||
4433 | ||||
4434 | case Expr::UnresolvedMemberExprClass: { | |||
4435 | NotPrimaryExpr(); | |||
4436 | const UnresolvedMemberExpr *ME = cast<UnresolvedMemberExpr>(E); | |||
4437 | mangleMemberExpr(ME->isImplicitAccess() ? nullptr : ME->getBase(), | |||
4438 | ME->isArrow(), ME->getQualifier(), nullptr, | |||
4439 | ME->getMemberName(), | |||
4440 | ME->getTemplateArgs(), ME->getNumTemplateArgs(), | |||
4441 | Arity); | |||
4442 | break; | |||
4443 | } | |||
4444 | ||||
4445 | case Expr::CXXDependentScopeMemberExprClass: { | |||
4446 | NotPrimaryExpr(); | |||
4447 | const CXXDependentScopeMemberExpr *ME | |||
4448 | = cast<CXXDependentScopeMemberExpr>(E); | |||
4449 | mangleMemberExpr(ME->isImplicitAccess() ? nullptr : ME->getBase(), | |||
4450 | ME->isArrow(), ME->getQualifier(), | |||
4451 | ME->getFirstQualifierFoundInScope(), | |||
4452 | ME->getMember(), | |||
4453 | ME->getTemplateArgs(), ME->getNumTemplateArgs(), | |||
4454 | Arity); | |||
4455 | break; | |||
4456 | } | |||
4457 | ||||
4458 | case Expr::UnresolvedLookupExprClass: { | |||
4459 | NotPrimaryExpr(); | |||
4460 | const UnresolvedLookupExpr *ULE = cast<UnresolvedLookupExpr>(E); | |||
4461 | mangleUnresolvedName(ULE->getQualifier(), ULE->getName(), | |||
4462 | ULE->getTemplateArgs(), ULE->getNumTemplateArgs(), | |||
4463 | Arity); | |||
4464 | break; | |||
4465 | } | |||
4466 | ||||
4467 | case Expr::CXXUnresolvedConstructExprClass: { | |||
4468 | NotPrimaryExpr(); | |||
4469 | const CXXUnresolvedConstructExpr *CE = cast<CXXUnresolvedConstructExpr>(E); | |||
4470 | unsigned N = CE->getNumArgs(); | |||
4471 | ||||
4472 | if (CE->isListInitialization()) { | |||
4473 | assert(N == 1 && "unexpected form for list initialization")(static_cast <bool> (N == 1 && "unexpected form for list initialization" ) ? void (0) : __assert_fail ("N == 1 && \"unexpected form for list initialization\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 4473, __extension__ __PRETTY_FUNCTION__)); | |||
4474 | auto *IL = cast<InitListExpr>(CE->getArg(0)); | |||
4475 | Out << "tl"; | |||
4476 | mangleType(CE->getType()); | |||
4477 | mangleInitListElements(IL); | |||
4478 | Out << "E"; | |||
4479 | break; | |||
4480 | } | |||
4481 | ||||
4482 | Out << "cv"; | |||
4483 | mangleType(CE->getType()); | |||
4484 | if (N != 1) Out << '_'; | |||
4485 | for (unsigned I = 0; I != N; ++I) mangleExpression(CE->getArg(I)); | |||
4486 | if (N != 1) Out << 'E'; | |||
4487 | break; | |||
4488 | } | |||
4489 | ||||
4490 | case Expr::CXXConstructExprClass: { | |||
4491 | // An implicit cast is silent, thus may contain <expr-primary>. | |||
4492 | const auto *CE = cast<CXXConstructExpr>(E); | |||
4493 | if (!CE->isListInitialization() || CE->isStdInitListInitialization()) { | |||
4494 | assert((static_cast <bool> (CE->getNumArgs() >= 1 && (CE->getNumArgs() == 1 || isa<CXXDefaultArgExpr>(CE ->getArg(1))) && "implicit CXXConstructExpr must have one argument" ) ? void (0) : __assert_fail ("CE->getNumArgs() >= 1 && (CE->getNumArgs() == 1 || isa<CXXDefaultArgExpr>(CE->getArg(1))) && \"implicit CXXConstructExpr must have one argument\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 4497, __extension__ __PRETTY_FUNCTION__)) | |||
4495 | CE->getNumArgs() >= 1 &&(static_cast <bool> (CE->getNumArgs() >= 1 && (CE->getNumArgs() == 1 || isa<CXXDefaultArgExpr>(CE ->getArg(1))) && "implicit CXXConstructExpr must have one argument" ) ? void (0) : __assert_fail ("CE->getNumArgs() >= 1 && (CE->getNumArgs() == 1 || isa<CXXDefaultArgExpr>(CE->getArg(1))) && \"implicit CXXConstructExpr must have one argument\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 4497, __extension__ __PRETTY_FUNCTION__)) | |||
4496 | (CE->getNumArgs() == 1 || isa<CXXDefaultArgExpr>(CE->getArg(1))) &&(static_cast <bool> (CE->getNumArgs() >= 1 && (CE->getNumArgs() == 1 || isa<CXXDefaultArgExpr>(CE ->getArg(1))) && "implicit CXXConstructExpr must have one argument" ) ? void (0) : __assert_fail ("CE->getNumArgs() >= 1 && (CE->getNumArgs() == 1 || isa<CXXDefaultArgExpr>(CE->getArg(1))) && \"implicit CXXConstructExpr must have one argument\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 4497, __extension__ __PRETTY_FUNCTION__)) | |||
4497 | "implicit CXXConstructExpr must have one argument")(static_cast <bool> (CE->getNumArgs() >= 1 && (CE->getNumArgs() == 1 || isa<CXXDefaultArgExpr>(CE ->getArg(1))) && "implicit CXXConstructExpr must have one argument" ) ? void (0) : __assert_fail ("CE->getNumArgs() >= 1 && (CE->getNumArgs() == 1 || isa<CXXDefaultArgExpr>(CE->getArg(1))) && \"implicit CXXConstructExpr must have one argument\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 4497, __extension__ __PRETTY_FUNCTION__)); | |||
4498 | E = cast<CXXConstructExpr>(E)->getArg(0); | |||
4499 | goto recurse; | |||
4500 | } | |||
4501 | NotPrimaryExpr(); | |||
4502 | Out << "il"; | |||
4503 | for (auto *E : CE->arguments()) | |||
4504 | mangleExpression(E); | |||
4505 | Out << "E"; | |||
4506 | break; | |||
4507 | } | |||
4508 | ||||
4509 | case Expr::CXXTemporaryObjectExprClass: { | |||
4510 | NotPrimaryExpr(); | |||
4511 | const auto *CE = cast<CXXTemporaryObjectExpr>(E); | |||
4512 | unsigned N = CE->getNumArgs(); | |||
4513 | bool List = CE->isListInitialization(); | |||
4514 | ||||
4515 | if (List) | |||
4516 | Out << "tl"; | |||
4517 | else | |||
4518 | Out << "cv"; | |||
4519 | mangleType(CE->getType()); | |||
4520 | if (!List && N != 1) | |||
4521 | Out << '_'; | |||
4522 | if (CE->isStdInitListInitialization()) { | |||
4523 | // We implicitly created a std::initializer_list<T> for the first argument | |||
4524 | // of a constructor of type U in an expression of the form U{a, b, c}. | |||
4525 | // Strip all the semantic gunk off the initializer list. | |||
4526 | auto *SILE = | |||
4527 | cast<CXXStdInitializerListExpr>(CE->getArg(0)->IgnoreImplicit()); | |||
4528 | auto *ILE = cast<InitListExpr>(SILE->getSubExpr()->IgnoreImplicit()); | |||
4529 | mangleInitListElements(ILE); | |||
4530 | } else { | |||
4531 | for (auto *E : CE->arguments()) | |||
4532 | mangleExpression(E); | |||
4533 | } | |||
4534 | if (List || N != 1) | |||
4535 | Out << 'E'; | |||
4536 | break; | |||
4537 | } | |||
4538 | ||||
4539 | case Expr::CXXScalarValueInitExprClass: | |||
4540 | NotPrimaryExpr(); | |||
4541 | Out << "cv"; | |||
4542 | mangleType(E->getType()); | |||
4543 | Out << "_E"; | |||
4544 | break; | |||
4545 | ||||
4546 | case Expr::CXXNoexceptExprClass: | |||
4547 | NotPrimaryExpr(); | |||
4548 | Out << "nx"; | |||
4549 | mangleExpression(cast<CXXNoexceptExpr>(E)->getOperand()); | |||
4550 | break; | |||
4551 | ||||
4552 | case Expr::UnaryExprOrTypeTraitExprClass: { | |||
4553 | // Non-instantiation-dependent traits are an <expr-primary> integer literal. | |||
4554 | const UnaryExprOrTypeTraitExpr *SAE = cast<UnaryExprOrTypeTraitExpr>(E); | |||
4555 | ||||
4556 | if (!SAE->isInstantiationDependent()) { | |||
4557 | // Itanium C++ ABI: | |||
4558 | // If the operand of a sizeof or alignof operator is not | |||
4559 | // instantiation-dependent it is encoded as an integer literal | |||
4560 | // reflecting the result of the operator. | |||
4561 | // | |||
4562 | // If the result of the operator is implicitly converted to a known | |||
4563 | // integer type, that type is used for the literal; otherwise, the type | |||
4564 | // of std::size_t or std::ptrdiff_t is used. | |||
4565 | QualType T = (ImplicitlyConvertedToType.isNull() || | |||
4566 | !ImplicitlyConvertedToType->isIntegerType())? SAE->getType() | |||
4567 | : ImplicitlyConvertedToType; | |||
4568 | llvm::APSInt V = SAE->EvaluateKnownConstInt(Context.getASTContext()); | |||
4569 | mangleIntegerLiteral(T, V); | |||
4570 | break; | |||
4571 | } | |||
4572 | ||||
4573 | NotPrimaryExpr(); // But otherwise, they are not. | |||
4574 | ||||
4575 | auto MangleAlignofSizeofArg = [&] { | |||
4576 | if (SAE->isArgumentType()) { | |||
4577 | Out << 't'; | |||
4578 | mangleType(SAE->getArgumentType()); | |||
4579 | } else { | |||
4580 | Out << 'z'; | |||
4581 | mangleExpression(SAE->getArgumentExpr()); | |||
4582 | } | |||
4583 | }; | |||
4584 | ||||
4585 | switch(SAE->getKind()) { | |||
4586 | case UETT_SizeOf: | |||
4587 | Out << 's'; | |||
4588 | MangleAlignofSizeofArg(); | |||
4589 | break; | |||
4590 | case UETT_PreferredAlignOf: | |||
4591 | // As of clang 12, we mangle __alignof__ differently than alignof. (They | |||
4592 | // have acted differently since Clang 8, but were previously mangled the | |||
4593 | // same.) | |||
4594 | if (Context.getASTContext().getLangOpts().getClangABICompat() > | |||
4595 | LangOptions::ClangABI::Ver11) { | |||
4596 | Out << "u11__alignof__"; | |||
4597 | if (SAE->isArgumentType()) | |||
4598 | mangleType(SAE->getArgumentType()); | |||
4599 | else | |||
4600 | mangleTemplateArgExpr(SAE->getArgumentExpr()); | |||
4601 | Out << 'E'; | |||
4602 | break; | |||
4603 | } | |||
4604 | LLVM_FALLTHROUGH[[gnu::fallthrough]]; | |||
4605 | case UETT_AlignOf: | |||
4606 | Out << 'a'; | |||
4607 | MangleAlignofSizeofArg(); | |||
4608 | break; | |||
4609 | case UETT_VecStep: { | |||
4610 | DiagnosticsEngine &Diags = Context.getDiags(); | |||
4611 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, | |||
4612 | "cannot yet mangle vec_step expression"); | |||
4613 | Diags.Report(DiagID); | |||
4614 | return; | |||
4615 | } | |||
4616 | case UETT_OpenMPRequiredSimdAlign: { | |||
4617 | DiagnosticsEngine &Diags = Context.getDiags(); | |||
4618 | unsigned DiagID = Diags.getCustomDiagID( | |||
4619 | DiagnosticsEngine::Error, | |||
4620 | "cannot yet mangle __builtin_omp_required_simd_align expression"); | |||
4621 | Diags.Report(DiagID); | |||
4622 | return; | |||
4623 | } | |||
4624 | } | |||
4625 | break; | |||
4626 | } | |||
4627 | ||||
4628 | case Expr::CXXThrowExprClass: { | |||
4629 | NotPrimaryExpr(); | |||
4630 | const CXXThrowExpr *TE = cast<CXXThrowExpr>(E); | |||
4631 | // <expression> ::= tw <expression> # throw expression | |||
4632 | // ::= tr # rethrow | |||
4633 | if (TE->getSubExpr()) { | |||
4634 | Out << "tw"; | |||
4635 | mangleExpression(TE->getSubExpr()); | |||
4636 | } else { | |||
4637 | Out << "tr"; | |||
4638 | } | |||
4639 | break; | |||
4640 | } | |||
4641 | ||||
4642 | case Expr::CXXTypeidExprClass: { | |||
4643 | NotPrimaryExpr(); | |||
4644 | const CXXTypeidExpr *TIE = cast<CXXTypeidExpr>(E); | |||
4645 | // <expression> ::= ti <type> # typeid (type) | |||
4646 | // ::= te <expression> # typeid (expression) | |||
4647 | if (TIE->isTypeOperand()) { | |||
4648 | Out << "ti"; | |||
4649 | mangleType(TIE->getTypeOperand(Context.getASTContext())); | |||
4650 | } else { | |||
4651 | Out << "te"; | |||
4652 | mangleExpression(TIE->getExprOperand()); | |||
4653 | } | |||
4654 | break; | |||
4655 | } | |||
4656 | ||||
4657 | case Expr::CXXDeleteExprClass: { | |||
4658 | NotPrimaryExpr(); | |||
4659 | const CXXDeleteExpr *DE = cast<CXXDeleteExpr>(E); | |||
4660 | // <expression> ::= [gs] dl <expression> # [::] delete expr | |||
4661 | // ::= [gs] da <expression> # [::] delete [] expr | |||
4662 | if (DE->isGlobalDelete()) Out << "gs"; | |||
4663 | Out << (DE->isArrayForm() ? "da" : "dl"); | |||
4664 | mangleExpression(DE->getArgument()); | |||
4665 | break; | |||
4666 | } | |||
4667 | ||||
4668 | case Expr::UnaryOperatorClass: { | |||
4669 | NotPrimaryExpr(); | |||
4670 | const UnaryOperator *UO = cast<UnaryOperator>(E); | |||
4671 | mangleOperatorName(UnaryOperator::getOverloadedOperator(UO->getOpcode()), | |||
4672 | /*Arity=*/1); | |||
4673 | mangleExpression(UO->getSubExpr()); | |||
4674 | break; | |||
4675 | } | |||
4676 | ||||
4677 | case Expr::ArraySubscriptExprClass: { | |||
4678 | NotPrimaryExpr(); | |||
4679 | const ArraySubscriptExpr *AE = cast<ArraySubscriptExpr>(E); | |||
4680 | ||||
4681 | // Array subscript is treated as a syntactically weird form of | |||
4682 | // binary operator. | |||
4683 | Out << "ix"; | |||
4684 | mangleExpression(AE->getLHS()); | |||
4685 | mangleExpression(AE->getRHS()); | |||
4686 | break; | |||
4687 | } | |||
4688 | ||||
4689 | case Expr::MatrixSubscriptExprClass: { | |||
4690 | NotPrimaryExpr(); | |||
4691 | const MatrixSubscriptExpr *ME = cast<MatrixSubscriptExpr>(E); | |||
4692 | Out << "ixix"; | |||
4693 | mangleExpression(ME->getBase()); | |||
4694 | mangleExpression(ME->getRowIdx()); | |||
4695 | mangleExpression(ME->getColumnIdx()); | |||
4696 | break; | |||
4697 | } | |||
4698 | ||||
4699 | case Expr::CompoundAssignOperatorClass: // fallthrough | |||
4700 | case Expr::BinaryOperatorClass: { | |||
4701 | NotPrimaryExpr(); | |||
4702 | const BinaryOperator *BO = cast<BinaryOperator>(E); | |||
4703 | if (BO->getOpcode() == BO_PtrMemD) | |||
4704 | Out << "ds"; | |||
4705 | else | |||
4706 | mangleOperatorName(BinaryOperator::getOverloadedOperator(BO->getOpcode()), | |||
4707 | /*Arity=*/2); | |||
4708 | mangleExpression(BO->getLHS()); | |||
4709 | mangleExpression(BO->getRHS()); | |||
4710 | break; | |||
4711 | } | |||
4712 | ||||
4713 | case Expr::CXXRewrittenBinaryOperatorClass: { | |||
4714 | NotPrimaryExpr(); | |||
4715 | // The mangled form represents the original syntax. | |||
4716 | CXXRewrittenBinaryOperator::DecomposedForm Decomposed = | |||
4717 | cast<CXXRewrittenBinaryOperator>(E)->getDecomposedForm(); | |||
4718 | mangleOperatorName(BinaryOperator::getOverloadedOperator(Decomposed.Opcode), | |||
4719 | /*Arity=*/2); | |||
4720 | mangleExpression(Decomposed.LHS); | |||
4721 | mangleExpression(Decomposed.RHS); | |||
4722 | break; | |||
4723 | } | |||
4724 | ||||
4725 | case Expr::ConditionalOperatorClass: { | |||
4726 | NotPrimaryExpr(); | |||
4727 | const ConditionalOperator *CO = cast<ConditionalOperator>(E); | |||
4728 | mangleOperatorName(OO_Conditional, /*Arity=*/3); | |||
4729 | mangleExpression(CO->getCond()); | |||
4730 | mangleExpression(CO->getLHS(), Arity); | |||
4731 | mangleExpression(CO->getRHS(), Arity); | |||
4732 | break; | |||
4733 | } | |||
4734 | ||||
4735 | case Expr::ImplicitCastExprClass: { | |||
4736 | ImplicitlyConvertedToType = E->getType(); | |||
4737 | E = cast<ImplicitCastExpr>(E)->getSubExpr(); | |||
4738 | goto recurse; | |||
4739 | } | |||
4740 | ||||
4741 | case Expr::ObjCBridgedCastExprClass: { | |||
4742 | NotPrimaryExpr(); | |||
4743 | // Mangle ownership casts as a vendor extended operator __bridge, | |||
4744 | // __bridge_transfer, or __bridge_retain. | |||
4745 | StringRef Kind = cast<ObjCBridgedCastExpr>(E)->getBridgeKindName(); | |||
4746 | Out << "v1U" << Kind.size() << Kind; | |||
4747 | mangleCastExpression(E, "cv"); | |||
4748 | break; | |||
4749 | } | |||
4750 | ||||
4751 | case Expr::CStyleCastExprClass: | |||
4752 | NotPrimaryExpr(); | |||
4753 | mangleCastExpression(E, "cv"); | |||
4754 | break; | |||
4755 | ||||
4756 | case Expr::CXXFunctionalCastExprClass: { | |||
4757 | NotPrimaryExpr(); | |||
4758 | auto *Sub = cast<ExplicitCastExpr>(E)->getSubExpr()->IgnoreImplicit(); | |||
4759 | // FIXME: Add isImplicit to CXXConstructExpr. | |||
4760 | if (auto *CCE = dyn_cast<CXXConstructExpr>(Sub)) | |||
4761 | if (CCE->getParenOrBraceRange().isInvalid()) | |||
4762 | Sub = CCE->getArg(0)->IgnoreImplicit(); | |||
4763 | if (auto *StdInitList = dyn_cast<CXXStdInitializerListExpr>(Sub)) | |||
4764 | Sub = StdInitList->getSubExpr()->IgnoreImplicit(); | |||
4765 | if (auto *IL = dyn_cast<InitListExpr>(Sub)) { | |||
4766 | Out << "tl"; | |||
4767 | mangleType(E->getType()); | |||
4768 | mangleInitListElements(IL); | |||
4769 | Out << "E"; | |||
4770 | } else { | |||
4771 | mangleCastExpression(E, "cv"); | |||
4772 | } | |||
4773 | break; | |||
4774 | } | |||
4775 | ||||
4776 | case Expr::CXXStaticCastExprClass: | |||
4777 | NotPrimaryExpr(); | |||
4778 | mangleCastExpression(E, "sc"); | |||
4779 | break; | |||
4780 | case Expr::CXXDynamicCastExprClass: | |||
4781 | NotPrimaryExpr(); | |||
4782 | mangleCastExpression(E, "dc"); | |||
4783 | break; | |||
4784 | case Expr::CXXReinterpretCastExprClass: | |||
4785 | NotPrimaryExpr(); | |||
4786 | mangleCastExpression(E, "rc"); | |||
4787 | break; | |||
4788 | case Expr::CXXConstCastExprClass: | |||
4789 | NotPrimaryExpr(); | |||
4790 | mangleCastExpression(E, "cc"); | |||
4791 | break; | |||
4792 | case Expr::CXXAddrspaceCastExprClass: | |||
4793 | NotPrimaryExpr(); | |||
4794 | mangleCastExpression(E, "ac"); | |||
4795 | break; | |||
4796 | ||||
4797 | case Expr::CXXOperatorCallExprClass: { | |||
4798 | NotPrimaryExpr(); | |||
4799 | const CXXOperatorCallExpr *CE = cast<CXXOperatorCallExpr>(E); | |||
4800 | unsigned NumArgs = CE->getNumArgs(); | |||
4801 | // A CXXOperatorCallExpr for OO_Arrow models only semantics, not syntax | |||
4802 | // (the enclosing MemberExpr covers the syntactic portion). | |||
4803 | if (CE->getOperator() != OO_Arrow) | |||
4804 | mangleOperatorName(CE->getOperator(), /*Arity=*/NumArgs); | |||
4805 | // Mangle the arguments. | |||
4806 | for (unsigned i = 0; i != NumArgs; ++i) | |||
4807 | mangleExpression(CE->getArg(i)); | |||
4808 | break; | |||
4809 | } | |||
4810 | ||||
4811 | case Expr::ParenExprClass: | |||
4812 | E = cast<ParenExpr>(E)->getSubExpr(); | |||
4813 | goto recurse; | |||
4814 | ||||
4815 | case Expr::ConceptSpecializationExprClass: { | |||
4816 | // <expr-primary> ::= L <mangled-name> E # external name | |||
4817 | Out << "L_Z"; | |||
4818 | auto *CSE = cast<ConceptSpecializationExpr>(E); | |||
4819 | mangleTemplateName(CSE->getNamedConcept(), | |||
4820 | CSE->getTemplateArguments().data(), | |||
4821 | CSE->getTemplateArguments().size()); | |||
4822 | Out << 'E'; | |||
4823 | break; | |||
4824 | } | |||
4825 | ||||
4826 | case Expr::DeclRefExprClass: | |||
4827 | // MangleDeclRefExpr helper handles primary-vs-nonprimary | |||
4828 | MangleDeclRefExpr(cast<DeclRefExpr>(E)->getDecl()); | |||
4829 | break; | |||
4830 | ||||
4831 | case Expr::SubstNonTypeTemplateParmPackExprClass: | |||
4832 | NotPrimaryExpr(); | |||
4833 | // FIXME: not clear how to mangle this! | |||
4834 | // template <unsigned N...> class A { | |||
4835 | // template <class U...> void foo(U (&x)[N]...); | |||
4836 | // }; | |||
4837 | Out << "_SUBSTPACK_"; | |||
4838 | break; | |||
4839 | ||||
4840 | case Expr::FunctionParmPackExprClass: { | |||
4841 | NotPrimaryExpr(); | |||
4842 | // FIXME: not clear how to mangle this! | |||
4843 | const FunctionParmPackExpr *FPPE = cast<FunctionParmPackExpr>(E); | |||
4844 | Out << "v110_SUBSTPACK"; | |||
4845 | MangleDeclRefExpr(FPPE->getParameterPack()); | |||
4846 | break; | |||
4847 | } | |||
4848 | ||||
4849 | case Expr::DependentScopeDeclRefExprClass: { | |||
4850 | NotPrimaryExpr(); | |||
4851 | const DependentScopeDeclRefExpr *DRE = cast<DependentScopeDeclRefExpr>(E); | |||
4852 | mangleUnresolvedName(DRE->getQualifier(), DRE->getDeclName(), | |||
4853 | DRE->getTemplateArgs(), DRE->getNumTemplateArgs(), | |||
4854 | Arity); | |||
4855 | break; | |||
4856 | } | |||
4857 | ||||
4858 | case Expr::CXXBindTemporaryExprClass: | |||
4859 | E = cast<CXXBindTemporaryExpr>(E)->getSubExpr(); | |||
4860 | goto recurse; | |||
4861 | ||||
4862 | case Expr::ExprWithCleanupsClass: | |||
4863 | E = cast<ExprWithCleanups>(E)->getSubExpr(); | |||
4864 | goto recurse; | |||
4865 | ||||
4866 | case Expr::FloatingLiteralClass: { | |||
4867 | // <expr-primary> | |||
4868 | const FloatingLiteral *FL = cast<FloatingLiteral>(E); | |||
4869 | mangleFloatLiteral(FL->getType(), FL->getValue()); | |||
4870 | break; | |||
4871 | } | |||
4872 | ||||
4873 | case Expr::FixedPointLiteralClass: | |||
4874 | // Currently unimplemented -- might be <expr-primary> in future? | |||
4875 | mangleFixedPointLiteral(); | |||
4876 | break; | |||
4877 | ||||
4878 | case Expr::CharacterLiteralClass: | |||
4879 | // <expr-primary> | |||
4880 | Out << 'L'; | |||
4881 | mangleType(E->getType()); | |||
4882 | Out << cast<CharacterLiteral>(E)->getValue(); | |||
4883 | Out << 'E'; | |||
4884 | break; | |||
4885 | ||||
4886 | // FIXME. __objc_yes/__objc_no are mangled same as true/false | |||
4887 | case Expr::ObjCBoolLiteralExprClass: | |||
4888 | // <expr-primary> | |||
4889 | Out << "Lb"; | |||
4890 | Out << (cast<ObjCBoolLiteralExpr>(E)->getValue() ? '1' : '0'); | |||
4891 | Out << 'E'; | |||
4892 | break; | |||
4893 | ||||
4894 | case Expr::CXXBoolLiteralExprClass: | |||
4895 | // <expr-primary> | |||
4896 | Out << "Lb"; | |||
4897 | Out << (cast<CXXBoolLiteralExpr>(E)->getValue() ? '1' : '0'); | |||
4898 | Out << 'E'; | |||
4899 | break; | |||
4900 | ||||
4901 | case Expr::IntegerLiteralClass: { | |||
4902 | // <expr-primary> | |||
4903 | llvm::APSInt Value(cast<IntegerLiteral>(E)->getValue()); | |||
4904 | if (E->getType()->isSignedIntegerType()) | |||
4905 | Value.setIsSigned(true); | |||
4906 | mangleIntegerLiteral(E->getType(), Value); | |||
4907 | break; | |||
4908 | } | |||
4909 | ||||
4910 | case Expr::ImaginaryLiteralClass: { | |||
4911 | // <expr-primary> | |||
4912 | const ImaginaryLiteral *IE = cast<ImaginaryLiteral>(E); | |||
4913 | // Mangle as if a complex literal. | |||
4914 | // Proposal from David Vandevoorde, 2010.06.30. | |||
4915 | Out << 'L'; | |||
4916 | mangleType(E->getType()); | |||
4917 | if (const FloatingLiteral *Imag = | |||
4918 | dyn_cast<FloatingLiteral>(IE->getSubExpr())) { | |||
4919 | // Mangle a floating-point zero of the appropriate type. | |||
4920 | mangleFloat(llvm::APFloat(Imag->getValue().getSemantics())); | |||
4921 | Out << '_'; | |||
4922 | mangleFloat(Imag->getValue()); | |||
4923 | } else { | |||
4924 | Out << "0_"; | |||
4925 | llvm::APSInt Value(cast<IntegerLiteral>(IE->getSubExpr())->getValue()); | |||
4926 | if (IE->getSubExpr()->getType()->isSignedIntegerType()) | |||
4927 | Value.setIsSigned(true); | |||
4928 | mangleNumber(Value); | |||
4929 | } | |||
4930 | Out << 'E'; | |||
4931 | break; | |||
4932 | } | |||
4933 | ||||
4934 | case Expr::StringLiteralClass: { | |||
4935 | // <expr-primary> | |||
4936 | // Revised proposal from David Vandervoorde, 2010.07.15. | |||
4937 | Out << 'L'; | |||
4938 | assert(isa<ConstantArrayType>(E->getType()))(static_cast <bool> (isa<ConstantArrayType>(E-> getType())) ? void (0) : __assert_fail ("isa<ConstantArrayType>(E->getType())" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 4938, __extension__ __PRETTY_FUNCTION__)); | |||
4939 | mangleType(E->getType()); | |||
4940 | Out << 'E'; | |||
4941 | break; | |||
4942 | } | |||
4943 | ||||
4944 | case Expr::GNUNullExprClass: | |||
4945 | // <expr-primary> | |||
4946 | // Mangle as if an integer literal 0. | |||
4947 | mangleIntegerLiteral(E->getType(), llvm::APSInt(32)); | |||
4948 | break; | |||
4949 | ||||
4950 | case Expr::CXXNullPtrLiteralExprClass: { | |||
4951 | // <expr-primary> | |||
4952 | Out << "LDnE"; | |||
4953 | break; | |||
4954 | } | |||
4955 | ||||
4956 | case Expr::PackExpansionExprClass: | |||
4957 | NotPrimaryExpr(); | |||
4958 | Out << "sp"; | |||
4959 | mangleExpression(cast<PackExpansionExpr>(E)->getPattern()); | |||
4960 | break; | |||
4961 | ||||
4962 | case Expr::SizeOfPackExprClass: { | |||
4963 | NotPrimaryExpr(); | |||
4964 | auto *SPE = cast<SizeOfPackExpr>(E); | |||
4965 | if (SPE->isPartiallySubstituted()) { | |||
4966 | Out << "sP"; | |||
4967 | for (const auto &A : SPE->getPartialArguments()) | |||
4968 | mangleTemplateArg(A, false); | |||
4969 | Out << "E"; | |||
4970 | break; | |||
4971 | } | |||
4972 | ||||
4973 | Out << "sZ"; | |||
4974 | const NamedDecl *Pack = SPE->getPack(); | |||
4975 | if (const TemplateTypeParmDecl *TTP = dyn_cast<TemplateTypeParmDecl>(Pack)) | |||
4976 | mangleTemplateParameter(TTP->getDepth(), TTP->getIndex()); | |||
4977 | else if (const NonTypeTemplateParmDecl *NTTP | |||
4978 | = dyn_cast<NonTypeTemplateParmDecl>(Pack)) | |||
4979 | mangleTemplateParameter(NTTP->getDepth(), NTTP->getIndex()); | |||
4980 | else if (const TemplateTemplateParmDecl *TempTP | |||
4981 | = dyn_cast<TemplateTemplateParmDecl>(Pack)) | |||
4982 | mangleTemplateParameter(TempTP->getDepth(), TempTP->getIndex()); | |||
4983 | else | |||
4984 | mangleFunctionParam(cast<ParmVarDecl>(Pack)); | |||
4985 | break; | |||
4986 | } | |||
4987 | ||||
4988 | case Expr::MaterializeTemporaryExprClass: | |||
4989 | E = cast<MaterializeTemporaryExpr>(E)->getSubExpr(); | |||
4990 | goto recurse; | |||
4991 | ||||
4992 | case Expr::CXXFoldExprClass: { | |||
4993 | NotPrimaryExpr(); | |||
4994 | auto *FE = cast<CXXFoldExpr>(E); | |||
4995 | if (FE->isLeftFold()) | |||
4996 | Out << (FE->getInit() ? "fL" : "fl"); | |||
4997 | else | |||
4998 | Out << (FE->getInit() ? "fR" : "fr"); | |||
4999 | ||||
5000 | if (FE->getOperator() == BO_PtrMemD) | |||
5001 | Out << "ds"; | |||
5002 | else | |||
5003 | mangleOperatorName( | |||
5004 | BinaryOperator::getOverloadedOperator(FE->getOperator()), | |||
5005 | /*Arity=*/2); | |||
5006 | ||||
5007 | if (FE->getLHS()) | |||
5008 | mangleExpression(FE->getLHS()); | |||
5009 | if (FE->getRHS()) | |||
5010 | mangleExpression(FE->getRHS()); | |||
5011 | break; | |||
5012 | } | |||
5013 | ||||
5014 | case Expr::CXXThisExprClass: | |||
5015 | NotPrimaryExpr(); | |||
5016 | Out << "fpT"; | |||
5017 | break; | |||
5018 | ||||
5019 | case Expr::CoawaitExprClass: | |||
5020 | // FIXME: Propose a non-vendor mangling. | |||
5021 | NotPrimaryExpr(); | |||
5022 | Out << "v18co_await"; | |||
5023 | mangleExpression(cast<CoawaitExpr>(E)->getOperand()); | |||
5024 | break; | |||
5025 | ||||
5026 | case Expr::DependentCoawaitExprClass: | |||
5027 | // FIXME: Propose a non-vendor mangling. | |||
5028 | NotPrimaryExpr(); | |||
5029 | Out << "v18co_await"; | |||
5030 | mangleExpression(cast<DependentCoawaitExpr>(E)->getOperand()); | |||
5031 | break; | |||
5032 | ||||
5033 | case Expr::CoyieldExprClass: | |||
5034 | // FIXME: Propose a non-vendor mangling. | |||
5035 | NotPrimaryExpr(); | |||
5036 | Out << "v18co_yield"; | |||
5037 | mangleExpression(cast<CoawaitExpr>(E)->getOperand()); | |||
5038 | break; | |||
5039 | case Expr::SYCLUniqueStableNameExprClass: { | |||
5040 | const auto *USN = cast<SYCLUniqueStableNameExpr>(E); | |||
5041 | NotPrimaryExpr(); | |||
5042 | ||||
5043 | Out << "u33__builtin_sycl_unique_stable_name"; | |||
5044 | mangleType(USN->getTypeSourceInfo()->getType()); | |||
5045 | ||||
5046 | Out << "E"; | |||
5047 | break; | |||
5048 | } | |||
5049 | } | |||
5050 | ||||
5051 | if (AsTemplateArg && !IsPrimaryExpr) | |||
5052 | Out << 'E'; | |||
5053 | } | |||
5054 | ||||
5055 | /// Mangle an expression which refers to a parameter variable. | |||
5056 | /// | |||
5057 | /// <expression> ::= <function-param> | |||
5058 | /// <function-param> ::= fp <top-level CV-qualifiers> _ # L == 0, I == 0 | |||
5059 | /// <function-param> ::= fp <top-level CV-qualifiers> | |||
5060 | /// <parameter-2 non-negative number> _ # L == 0, I > 0 | |||
5061 | /// <function-param> ::= fL <L-1 non-negative number> | |||
5062 | /// p <top-level CV-qualifiers> _ # L > 0, I == 0 | |||
5063 | /// <function-param> ::= fL <L-1 non-negative number> | |||
5064 | /// p <top-level CV-qualifiers> | |||
5065 | /// <I-1 non-negative number> _ # L > 0, I > 0 | |||
5066 | /// | |||
5067 | /// L is the nesting depth of the parameter, defined as 1 if the | |||
5068 | /// parameter comes from the innermost function prototype scope | |||
5069 | /// enclosing the current context, 2 if from the next enclosing | |||
5070 | /// function prototype scope, and so on, with one special case: if | |||
5071 | /// we've processed the full parameter clause for the innermost | |||
5072 | /// function type, then L is one less. This definition conveniently | |||
5073 | /// makes it irrelevant whether a function's result type was written | |||
5074 | /// trailing or leading, but is otherwise overly complicated; the | |||
5075 | /// numbering was first designed without considering references to | |||
5076 | /// parameter in locations other than return types, and then the | |||
5077 | /// mangling had to be generalized without changing the existing | |||
5078 | /// manglings. | |||
5079 | /// | |||
5080 | /// I is the zero-based index of the parameter within its parameter | |||
5081 | /// declaration clause. Note that the original ABI document describes | |||
5082 | /// this using 1-based ordinals. | |||
5083 | void CXXNameMangler::mangleFunctionParam(const ParmVarDecl *parm) { | |||
5084 | unsigned parmDepth = parm->getFunctionScopeDepth(); | |||
5085 | unsigned parmIndex = parm->getFunctionScopeIndex(); | |||
5086 | ||||
5087 | // Compute 'L'. | |||
5088 | // parmDepth does not include the declaring function prototype. | |||
5089 | // FunctionTypeDepth does account for that. | |||
5090 | assert(parmDepth < FunctionTypeDepth.getDepth())(static_cast <bool> (parmDepth < FunctionTypeDepth.getDepth ()) ? void (0) : __assert_fail ("parmDepth < FunctionTypeDepth.getDepth()" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 5090, __extension__ __PRETTY_FUNCTION__)); | |||
5091 | unsigned nestingDepth = FunctionTypeDepth.getDepth() - parmDepth; | |||
5092 | if (FunctionTypeDepth.isInResultType()) | |||
5093 | nestingDepth--; | |||
5094 | ||||
5095 | if (nestingDepth == 0) { | |||
5096 | Out << "fp"; | |||
5097 | } else { | |||
5098 | Out << "fL" << (nestingDepth - 1) << 'p'; | |||
5099 | } | |||
5100 | ||||
5101 | // Top-level qualifiers. We don't have to worry about arrays here, | |||
5102 | // because parameters declared as arrays should already have been | |||
5103 | // transformed to have pointer type. FIXME: apparently these don't | |||
5104 | // get mangled if used as an rvalue of a known non-class type? | |||
5105 | assert(!parm->getType()->isArrayType()(static_cast <bool> (!parm->getType()->isArrayType () && "parameter's type is still an array type?") ? void (0) : __assert_fail ("!parm->getType()->isArrayType() && \"parameter's type is still an array type?\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 5106, __extension__ __PRETTY_FUNCTION__)) | |||
5106 | && "parameter's type is still an array type?")(static_cast <bool> (!parm->getType()->isArrayType () && "parameter's type is still an array type?") ? void (0) : __assert_fail ("!parm->getType()->isArrayType() && \"parameter's type is still an array type?\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 5106, __extension__ __PRETTY_FUNCTION__)); | |||
5107 | ||||
5108 | if (const DependentAddressSpaceType *DAST = | |||
5109 | dyn_cast<DependentAddressSpaceType>(parm->getType())) { | |||
5110 | mangleQualifiers(DAST->getPointeeType().getQualifiers(), DAST); | |||
5111 | } else { | |||
5112 | mangleQualifiers(parm->getType().getQualifiers()); | |||
5113 | } | |||
5114 | ||||
5115 | // Parameter index. | |||
5116 | if (parmIndex != 0) { | |||
5117 | Out << (parmIndex - 1); | |||
5118 | } | |||
5119 | Out << '_'; | |||
5120 | } | |||
5121 | ||||
5122 | void CXXNameMangler::mangleCXXCtorType(CXXCtorType T, | |||
5123 | const CXXRecordDecl *InheritedFrom) { | |||
5124 | // <ctor-dtor-name> ::= C1 # complete object constructor | |||
5125 | // ::= C2 # base object constructor | |||
5126 | // ::= CI1 <type> # complete inheriting constructor | |||
5127 | // ::= CI2 <type> # base inheriting constructor | |||
5128 | // | |||
5129 | // In addition, C5 is a comdat name with C1 and C2 in it. | |||
5130 | Out << 'C'; | |||
5131 | if (InheritedFrom) | |||
5132 | Out << 'I'; | |||
5133 | switch (T) { | |||
5134 | case Ctor_Complete: | |||
5135 | Out << '1'; | |||
5136 | break; | |||
5137 | case Ctor_Base: | |||
5138 | Out << '2'; | |||
5139 | break; | |||
5140 | case Ctor_Comdat: | |||
5141 | Out << '5'; | |||
5142 | break; | |||
5143 | case Ctor_DefaultClosure: | |||
5144 | case Ctor_CopyingClosure: | |||
5145 | llvm_unreachable("closure constructors don't exist for the Itanium ABI!")::llvm::llvm_unreachable_internal("closure constructors don't exist for the Itanium ABI!" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 5145); | |||
5146 | } | |||
5147 | if (InheritedFrom) | |||
5148 | mangleName(InheritedFrom); | |||
5149 | } | |||
5150 | ||||
5151 | void CXXNameMangler::mangleCXXDtorType(CXXDtorType T) { | |||
5152 | // <ctor-dtor-name> ::= D0 # deleting destructor | |||
5153 | // ::= D1 # complete object destructor | |||
5154 | // ::= D2 # base object destructor | |||
5155 | // | |||
5156 | // In addition, D5 is a comdat name with D1, D2 and, if virtual, D0 in it. | |||
5157 | switch (T) { | |||
5158 | case Dtor_Deleting: | |||
5159 | Out << "D0"; | |||
5160 | break; | |||
5161 | case Dtor_Complete: | |||
5162 | Out << "D1"; | |||
5163 | break; | |||
5164 | case Dtor_Base: | |||
5165 | Out << "D2"; | |||
5166 | break; | |||
5167 | case Dtor_Comdat: | |||
5168 | Out << "D5"; | |||
5169 | break; | |||
5170 | } | |||
5171 | } | |||
5172 | ||||
5173 | namespace { | |||
5174 | // Helper to provide ancillary information on a template used to mangle its | |||
5175 | // arguments. | |||
5176 | struct TemplateArgManglingInfo { | |||
5177 | TemplateDecl *ResolvedTemplate = nullptr; | |||
5178 | bool SeenPackExpansionIntoNonPack = false; | |||
5179 | const NamedDecl *UnresolvedExpandedPack = nullptr; | |||
5180 | ||||
5181 | TemplateArgManglingInfo(TemplateName TN) { | |||
5182 | if (TemplateDecl *TD = TN.getAsTemplateDecl()) | |||
5183 | ResolvedTemplate = TD; | |||
5184 | } | |||
5185 | ||||
5186 | /// Do we need to mangle template arguments with exactly correct types? | |||
5187 | /// | |||
5188 | /// This should be called exactly once for each parameter / argument pair, in | |||
5189 | /// order. | |||
5190 | bool needExactType(unsigned ParamIdx, const TemplateArgument &Arg) { | |||
5191 | // We need correct types when the template-name is unresolved or when it | |||
5192 | // names a template that is able to be overloaded. | |||
5193 | if (!ResolvedTemplate || SeenPackExpansionIntoNonPack) | |||
5194 | return true; | |||
5195 | ||||
5196 | // Move to the next parameter. | |||
5197 | const NamedDecl *Param = UnresolvedExpandedPack; | |||
5198 | if (!Param) { | |||
5199 | assert(ParamIdx < ResolvedTemplate->getTemplateParameters()->size() &&(static_cast <bool> (ParamIdx < ResolvedTemplate-> getTemplateParameters()->size() && "no parameter for argument" ) ? void (0) : __assert_fail ("ParamIdx < ResolvedTemplate->getTemplateParameters()->size() && \"no parameter for argument\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 5200, __extension__ __PRETTY_FUNCTION__)) | |||
5200 | "no parameter for argument")(static_cast <bool> (ParamIdx < ResolvedTemplate-> getTemplateParameters()->size() && "no parameter for argument" ) ? void (0) : __assert_fail ("ParamIdx < ResolvedTemplate->getTemplateParameters()->size() && \"no parameter for argument\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 5200, __extension__ __PRETTY_FUNCTION__)); | |||
5201 | Param = ResolvedTemplate->getTemplateParameters()->getParam(ParamIdx); | |||
5202 | ||||
5203 | // If we reach an expanded parameter pack whose argument isn't in pack | |||
5204 | // form, that means Sema couldn't figure out which arguments belonged to | |||
5205 | // it, because it contains a pack expansion. Track the expanded pack for | |||
5206 | // all further template arguments until we hit that pack expansion. | |||
5207 | if (Param->isParameterPack() && Arg.getKind() != TemplateArgument::Pack) { | |||
5208 | assert(getExpandedPackSize(Param) &&(static_cast <bool> (getExpandedPackSize(Param) && "failed to form pack argument for parameter pack") ? void (0 ) : __assert_fail ("getExpandedPackSize(Param) && \"failed to form pack argument for parameter pack\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 5209, __extension__ __PRETTY_FUNCTION__)) | |||
5209 | "failed to form pack argument for parameter pack")(static_cast <bool> (getExpandedPackSize(Param) && "failed to form pack argument for parameter pack") ? void (0 ) : __assert_fail ("getExpandedPackSize(Param) && \"failed to form pack argument for parameter pack\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 5209, __extension__ __PRETTY_FUNCTION__)); | |||
5210 | UnresolvedExpandedPack = Param; | |||
5211 | } | |||
5212 | } | |||
5213 | ||||
5214 | // If we encounter a pack argument that is expanded into a non-pack | |||
5215 | // parameter, we can no longer track parameter / argument correspondence, | |||
5216 | // and need to use exact types from this point onwards. | |||
5217 | if (Arg.isPackExpansion() && | |||
5218 | (!Param->isParameterPack() || UnresolvedExpandedPack)) { | |||
5219 | SeenPackExpansionIntoNonPack = true; | |||
5220 | return true; | |||
5221 | } | |||
5222 | ||||
5223 | // We need exact types for function template arguments because they might be | |||
5224 | // overloaded on template parameter type. As a special case, a member | |||
5225 | // function template of a generic lambda is not overloadable. | |||
5226 | if (auto *FTD = dyn_cast<FunctionTemplateDecl>(ResolvedTemplate)) { | |||
5227 | auto *RD = dyn_cast<CXXRecordDecl>(FTD->getDeclContext()); | |||
5228 | if (!RD || !RD->isGenericLambda()) | |||
5229 | return true; | |||
5230 | } | |||
5231 | ||||
5232 | // Otherwise, we only need a correct type if the parameter has a deduced | |||
5233 | // type. | |||
5234 | // | |||
5235 | // Note: for an expanded parameter pack, getType() returns the type prior | |||
5236 | // to expansion. We could ask for the expanded type with getExpansionType(), | |||
5237 | // but it doesn't matter because substitution and expansion don't affect | |||
5238 | // whether a deduced type appears in the type. | |||
5239 | auto *NTTP = dyn_cast<NonTypeTemplateParmDecl>(Param); | |||
5240 | return NTTP && NTTP->getType()->getContainedDeducedType(); | |||
5241 | } | |||
5242 | }; | |||
5243 | } | |||
5244 | ||||
5245 | void CXXNameMangler::mangleTemplateArgs(TemplateName TN, | |||
5246 | const TemplateArgumentLoc *TemplateArgs, | |||
5247 | unsigned NumTemplateArgs) { | |||
5248 | // <template-args> ::= I <template-arg>+ E | |||
5249 | Out << 'I'; | |||
5250 | TemplateArgManglingInfo Info(TN); | |||
5251 | for (unsigned i = 0; i != NumTemplateArgs; ++i) | |||
5252 | mangleTemplateArg(TemplateArgs[i].getArgument(), | |||
5253 | Info.needExactType(i, TemplateArgs[i].getArgument())); | |||
5254 | Out << 'E'; | |||
5255 | } | |||
5256 | ||||
5257 | void CXXNameMangler::mangleTemplateArgs(TemplateName TN, | |||
5258 | const TemplateArgumentList &AL) { | |||
5259 | // <template-args> ::= I <template-arg>+ E | |||
5260 | Out << 'I'; | |||
5261 | TemplateArgManglingInfo Info(TN); | |||
5262 | for (unsigned i = 0, e = AL.size(); i != e; ++i) | |||
5263 | mangleTemplateArg(AL[i], Info.needExactType(i, AL[i])); | |||
5264 | Out << 'E'; | |||
5265 | } | |||
5266 | ||||
5267 | void CXXNameMangler::mangleTemplateArgs(TemplateName TN, | |||
5268 | const TemplateArgument *TemplateArgs, | |||
5269 | unsigned NumTemplateArgs) { | |||
5270 | // <template-args> ::= I <template-arg>+ E | |||
5271 | Out << 'I'; | |||
5272 | TemplateArgManglingInfo Info(TN); | |||
5273 | for (unsigned i = 0; i != NumTemplateArgs; ++i) | |||
5274 | mangleTemplateArg(TemplateArgs[i], Info.needExactType(i, TemplateArgs[i])); | |||
5275 | Out << 'E'; | |||
5276 | } | |||
5277 | ||||
5278 | void CXXNameMangler::mangleTemplateArg(TemplateArgument A, bool NeedExactType) { | |||
5279 | // <template-arg> ::= <type> # type or template | |||
5280 | // ::= X <expression> E # expression | |||
5281 | // ::= <expr-primary> # simple expressions | |||
5282 | // ::= J <template-arg>* E # argument pack | |||
5283 | if (!A.isInstantiationDependent() || A.isDependent()) | |||
5284 | A = Context.getASTContext().getCanonicalTemplateArgument(A); | |||
5285 | ||||
5286 | switch (A.getKind()) { | |||
5287 | case TemplateArgument::Null: | |||
5288 | llvm_unreachable("Cannot mangle NULL template argument")::llvm::llvm_unreachable_internal("Cannot mangle NULL template argument" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 5288); | |||
5289 | ||||
5290 | case TemplateArgument::Type: | |||
5291 | mangleType(A.getAsType()); | |||
5292 | break; | |||
5293 | case TemplateArgument::Template: | |||
5294 | // This is mangled as <type>. | |||
5295 | mangleType(A.getAsTemplate()); | |||
5296 | break; | |||
5297 | case TemplateArgument::TemplateExpansion: | |||
5298 | // <type> ::= Dp <type> # pack expansion (C++0x) | |||
5299 | Out << "Dp"; | |||
5300 | mangleType(A.getAsTemplateOrTemplatePattern()); | |||
5301 | break; | |||
5302 | case TemplateArgument::Expression: | |||
5303 | mangleTemplateArgExpr(A.getAsExpr()); | |||
5304 | break; | |||
5305 | case TemplateArgument::Integral: | |||
5306 | mangleIntegerLiteral(A.getIntegralType(), A.getAsIntegral()); | |||
5307 | break; | |||
5308 | case TemplateArgument::Declaration: { | |||
5309 | // <expr-primary> ::= L <mangled-name> E # external name | |||
5310 | ValueDecl *D = A.getAsDecl(); | |||
5311 | ||||
5312 | // Template parameter objects are modeled by reproducing a source form | |||
5313 | // produced as if by aggregate initialization. | |||
5314 | if (A.getParamTypeForDecl()->isRecordType()) { | |||
5315 | auto *TPO = cast<TemplateParamObjectDecl>(D); | |||
5316 | mangleValueInTemplateArg(TPO->getType().getUnqualifiedType(), | |||
5317 | TPO->getValue(), /*TopLevel=*/true, | |||
5318 | NeedExactType); | |||
5319 | break; | |||
5320 | } | |||
5321 | ||||
5322 | ASTContext &Ctx = Context.getASTContext(); | |||
5323 | APValue Value; | |||
5324 | if (D->isCXXInstanceMember()) | |||
5325 | // Simple pointer-to-member with no conversion. | |||
5326 | Value = APValue(D, /*IsDerivedMember=*/false, /*Path=*/{}); | |||
5327 | else if (D->getType()->isArrayType() && | |||
5328 | Ctx.hasSimilarType(Ctx.getDecayedType(D->getType()), | |||
5329 | A.getParamTypeForDecl()) && | |||
5330 | Ctx.getLangOpts().getClangABICompat() > | |||
5331 | LangOptions::ClangABI::Ver11) | |||
5332 | // Build a value corresponding to this implicit array-to-pointer decay. | |||
5333 | Value = APValue(APValue::LValueBase(D), CharUnits::Zero(), | |||
5334 | {APValue::LValuePathEntry::ArrayIndex(0)}, | |||
5335 | /*OnePastTheEnd=*/false); | |||
5336 | else | |||
5337 | // Regular pointer or reference to a declaration. | |||
5338 | Value = APValue(APValue::LValueBase(D), CharUnits::Zero(), | |||
5339 | ArrayRef<APValue::LValuePathEntry>(), | |||
5340 | /*OnePastTheEnd=*/false); | |||
5341 | mangleValueInTemplateArg(A.getParamTypeForDecl(), Value, /*TopLevel=*/true, | |||
5342 | NeedExactType); | |||
5343 | break; | |||
5344 | } | |||
5345 | case TemplateArgument::NullPtr: { | |||
5346 | mangleNullPointer(A.getNullPtrType()); | |||
5347 | break; | |||
5348 | } | |||
5349 | case TemplateArgument::Pack: { | |||
5350 | // <template-arg> ::= J <template-arg>* E | |||
5351 | Out << 'J'; | |||
5352 | for (const auto &P : A.pack_elements()) | |||
5353 | mangleTemplateArg(P, NeedExactType); | |||
5354 | Out << 'E'; | |||
5355 | } | |||
5356 | } | |||
5357 | } | |||
5358 | ||||
5359 | void CXXNameMangler::mangleTemplateArgExpr(const Expr *E) { | |||
5360 | ASTContext &Ctx = Context.getASTContext(); | |||
5361 | if (Ctx.getLangOpts().getClangABICompat() > LangOptions::ClangABI::Ver11) { | |||
5362 | mangleExpression(E, UnknownArity, /*AsTemplateArg=*/true); | |||
5363 | return; | |||
5364 | } | |||
5365 | ||||
5366 | // Prior to Clang 12, we didn't omit the X .. E around <expr-primary> | |||
5367 | // correctly in cases where the template argument was | |||
5368 | // constructed from an expression rather than an already-evaluated | |||
5369 | // literal. In such a case, we would then e.g. emit 'XLi0EE' instead of | |||
5370 | // 'Li0E'. | |||
5371 | // | |||
5372 | // We did special-case DeclRefExpr to attempt to DTRT for that one | |||
5373 | // expression-kind, but while doing so, unfortunately handled ParmVarDecl | |||
5374 | // (subtype of VarDecl) _incorrectly_, and emitted 'L_Z .. E' instead of | |||
5375 | // the proper 'Xfp_E'. | |||
5376 | E = E->IgnoreParenImpCasts(); | |||
5377 | if (const DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(E)) { | |||
5378 | const ValueDecl *D = DRE->getDecl(); | |||
5379 | if (isa<VarDecl>(D) || isa<FunctionDecl>(D)) { | |||
5380 | Out << 'L'; | |||
5381 | mangle(D); | |||
5382 | Out << 'E'; | |||
5383 | return; | |||
5384 | } | |||
5385 | } | |||
5386 | Out << 'X'; | |||
5387 | mangleExpression(E); | |||
5388 | Out << 'E'; | |||
5389 | } | |||
5390 | ||||
5391 | /// Determine whether a given value is equivalent to zero-initialization for | |||
5392 | /// the purpose of discarding a trailing portion of a 'tl' mangling. | |||
5393 | /// | |||
5394 | /// Note that this is not in general equivalent to determining whether the | |||
5395 | /// value has an all-zeroes bit pattern. | |||
5396 | static bool isZeroInitialized(QualType T, const APValue &V) { | |||
5397 | // FIXME: mangleValueInTemplateArg has quadratic time complexity in | |||
5398 | // pathological cases due to using this, but it's a little awkward | |||
5399 | // to do this in linear time in general. | |||
5400 | switch (V.getKind()) { | |||
5401 | case APValue::None: | |||
5402 | case APValue::Indeterminate: | |||
5403 | case APValue::AddrLabelDiff: | |||
5404 | return false; | |||
5405 | ||||
5406 | case APValue::Struct: { | |||
5407 | const CXXRecordDecl *RD = T->getAsCXXRecordDecl(); | |||
5408 | assert(RD && "unexpected type for record value")(static_cast <bool> (RD && "unexpected type for record value" ) ? void (0) : __assert_fail ("RD && \"unexpected type for record value\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 5408, __extension__ __PRETTY_FUNCTION__)); | |||
5409 | unsigned I = 0; | |||
5410 | for (const CXXBaseSpecifier &BS : RD->bases()) { | |||
5411 | if (!isZeroInitialized(BS.getType(), V.getStructBase(I))) | |||
5412 | return false; | |||
5413 | ++I; | |||
5414 | } | |||
5415 | I = 0; | |||
5416 | for (const FieldDecl *FD : RD->fields()) { | |||
5417 | if (!FD->isUnnamedBitfield() && | |||
5418 | !isZeroInitialized(FD->getType(), V.getStructField(I))) | |||
5419 | return false; | |||
5420 | ++I; | |||
5421 | } | |||
5422 | return true; | |||
5423 | } | |||
5424 | ||||
5425 | case APValue::Union: { | |||
5426 | const CXXRecordDecl *RD = T->getAsCXXRecordDecl(); | |||
5427 | assert(RD && "unexpected type for union value")(static_cast <bool> (RD && "unexpected type for union value" ) ? void (0) : __assert_fail ("RD && \"unexpected type for union value\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 5427, __extension__ __PRETTY_FUNCTION__)); | |||
5428 | // Zero-initialization zeroes the first non-unnamed-bitfield field, if any. | |||
5429 | for (const FieldDecl *FD : RD->fields()) { | |||
5430 | if (!FD->isUnnamedBitfield()) | |||
5431 | return V.getUnionField() && declaresSameEntity(FD, V.getUnionField()) && | |||
5432 | isZeroInitialized(FD->getType(), V.getUnionValue()); | |||
5433 | } | |||
5434 | // If there are no fields (other than unnamed bitfields), the value is | |||
5435 | // necessarily zero-initialized. | |||
5436 | return true; | |||
5437 | } | |||
5438 | ||||
5439 | case APValue::Array: { | |||
5440 | QualType ElemT(T->getArrayElementTypeNoTypeQual(), 0); | |||
5441 | for (unsigned I = 0, N = V.getArrayInitializedElts(); I != N; ++I) | |||
5442 | if (!isZeroInitialized(ElemT, V.getArrayInitializedElt(I))) | |||
5443 | return false; | |||
5444 | return !V.hasArrayFiller() || isZeroInitialized(ElemT, V.getArrayFiller()); | |||
5445 | } | |||
5446 | ||||
5447 | case APValue::Vector: { | |||
5448 | const VectorType *VT = T->castAs<VectorType>(); | |||
5449 | for (unsigned I = 0, N = V.getVectorLength(); I != N; ++I) | |||
5450 | if (!isZeroInitialized(VT->getElementType(), V.getVectorElt(I))) | |||
5451 | return false; | |||
5452 | return true; | |||
5453 | } | |||
5454 | ||||
5455 | case APValue::Int: | |||
5456 | return !V.getInt(); | |||
5457 | ||||
5458 | case APValue::Float: | |||
5459 | return V.getFloat().isPosZero(); | |||
5460 | ||||
5461 | case APValue::FixedPoint: | |||
5462 | return !V.getFixedPoint().getValue(); | |||
5463 | ||||
5464 | case APValue::ComplexFloat: | |||
5465 | return V.getComplexFloatReal().isPosZero() && | |||
5466 | V.getComplexFloatImag().isPosZero(); | |||
5467 | ||||
5468 | case APValue::ComplexInt: | |||
5469 | return !V.getComplexIntReal() && !V.getComplexIntImag(); | |||
5470 | ||||
5471 | case APValue::LValue: | |||
5472 | return V.isNullPointer(); | |||
5473 | ||||
5474 | case APValue::MemberPointer: | |||
5475 | return !V.getMemberPointerDecl(); | |||
5476 | } | |||
5477 | ||||
5478 | llvm_unreachable("Unhandled APValue::ValueKind enum")::llvm::llvm_unreachable_internal("Unhandled APValue::ValueKind enum" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 5478); | |||
5479 | } | |||
5480 | ||||
5481 | static QualType getLValueType(ASTContext &Ctx, const APValue &LV) { | |||
5482 | QualType T = LV.getLValueBase().getType(); | |||
5483 | for (APValue::LValuePathEntry E : LV.getLValuePath()) { | |||
5484 | if (const ArrayType *AT = Ctx.getAsArrayType(T)) | |||
5485 | T = AT->getElementType(); | |||
5486 | else if (const FieldDecl *FD = | |||
5487 | dyn_cast<FieldDecl>(E.getAsBaseOrMember().getPointer())) | |||
5488 | T = FD->getType(); | |||
5489 | else | |||
5490 | T = Ctx.getRecordType( | |||
5491 | cast<CXXRecordDecl>(E.getAsBaseOrMember().getPointer())); | |||
5492 | } | |||
5493 | return T; | |||
5494 | } | |||
5495 | ||||
5496 | void CXXNameMangler::mangleValueInTemplateArg(QualType T, const APValue &V, | |||
5497 | bool TopLevel, | |||
5498 | bool NeedExactType) { | |||
5499 | // Ignore all top-level cv-qualifiers, to match GCC. | |||
5500 | Qualifiers Quals; | |||
5501 | T = getASTContext().getUnqualifiedArrayType(T, Quals); | |||
5502 | ||||
5503 | // A top-level expression that's not a primary expression is wrapped in X...E. | |||
5504 | bool IsPrimaryExpr = true; | |||
5505 | auto NotPrimaryExpr = [&] { | |||
5506 | if (TopLevel && IsPrimaryExpr) | |||
5507 | Out << 'X'; | |||
5508 | IsPrimaryExpr = false; | |||
5509 | }; | |||
5510 | ||||
5511 | // Proposed in https://github.com/itanium-cxx-abi/cxx-abi/issues/63. | |||
5512 | switch (V.getKind()) { | |||
5513 | case APValue::None: | |||
5514 | case APValue::Indeterminate: | |||
5515 | Out << 'L'; | |||
5516 | mangleType(T); | |||
5517 | Out << 'E'; | |||
5518 | break; | |||
5519 | ||||
5520 | case APValue::AddrLabelDiff: | |||
5521 | llvm_unreachable("unexpected value kind in template argument")::llvm::llvm_unreachable_internal("unexpected value kind in template argument" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 5521); | |||
5522 | ||||
5523 | case APValue::Struct: { | |||
5524 | const CXXRecordDecl *RD = T->getAsCXXRecordDecl(); | |||
5525 | assert(RD && "unexpected type for record value")(static_cast <bool> (RD && "unexpected type for record value" ) ? void (0) : __assert_fail ("RD && \"unexpected type for record value\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 5525, __extension__ __PRETTY_FUNCTION__)); | |||
5526 | ||||
5527 | // Drop trailing zero-initialized elements. | |||
5528 | llvm::SmallVector<const FieldDecl *, 16> Fields(RD->field_begin(), | |||
5529 | RD->field_end()); | |||
5530 | while ( | |||
5531 | !Fields.empty() && | |||
5532 | (Fields.back()->isUnnamedBitfield() || | |||
5533 | isZeroInitialized(Fields.back()->getType(), | |||
5534 | V.getStructField(Fields.back()->getFieldIndex())))) { | |||
5535 | Fields.pop_back(); | |||
5536 | } | |||
5537 | llvm::ArrayRef<CXXBaseSpecifier> Bases(RD->bases_begin(), RD->bases_end()); | |||
5538 | if (Fields.empty()) { | |||
5539 | while (!Bases.empty() && | |||
5540 | isZeroInitialized(Bases.back().getType(), | |||
5541 | V.getStructBase(Bases.size() - 1))) | |||
5542 | Bases = Bases.drop_back(); | |||
5543 | } | |||
5544 | ||||
5545 | // <expression> ::= tl <type> <braced-expression>* E | |||
5546 | NotPrimaryExpr(); | |||
5547 | Out << "tl"; | |||
5548 | mangleType(T); | |||
5549 | for (unsigned I = 0, N = Bases.size(); I != N; ++I) | |||
5550 | mangleValueInTemplateArg(Bases[I].getType(), V.getStructBase(I), false); | |||
5551 | for (unsigned I = 0, N = Fields.size(); I != N; ++I) { | |||
5552 | if (Fields[I]->isUnnamedBitfield()) | |||
5553 | continue; | |||
5554 | mangleValueInTemplateArg(Fields[I]->getType(), | |||
5555 | V.getStructField(Fields[I]->getFieldIndex()), | |||
5556 | false); | |||
5557 | } | |||
5558 | Out << 'E'; | |||
5559 | break; | |||
5560 | } | |||
5561 | ||||
5562 | case APValue::Union: { | |||
5563 | assert(T->getAsCXXRecordDecl() && "unexpected type for union value")(static_cast <bool> (T->getAsCXXRecordDecl() && "unexpected type for union value") ? void (0) : __assert_fail ("T->getAsCXXRecordDecl() && \"unexpected type for union value\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 5563, __extension__ __PRETTY_FUNCTION__)); | |||
5564 | const FieldDecl *FD = V.getUnionField(); | |||
5565 | ||||
5566 | if (!FD) { | |||
5567 | Out << 'L'; | |||
5568 | mangleType(T); | |||
5569 | Out << 'E'; | |||
5570 | break; | |||
5571 | } | |||
5572 | ||||
5573 | // <braced-expression> ::= di <field source-name> <braced-expression> | |||
5574 | NotPrimaryExpr(); | |||
5575 | Out << "tl"; | |||
5576 | mangleType(T); | |||
5577 | if (!isZeroInitialized(T, V)) { | |||
5578 | Out << "di"; | |||
5579 | mangleSourceName(FD->getIdentifier()); | |||
5580 | mangleValueInTemplateArg(FD->getType(), V.getUnionValue(), false); | |||
5581 | } | |||
5582 | Out << 'E'; | |||
5583 | break; | |||
5584 | } | |||
5585 | ||||
5586 | case APValue::Array: { | |||
5587 | QualType ElemT(T->getArrayElementTypeNoTypeQual(), 0); | |||
5588 | ||||
5589 | NotPrimaryExpr(); | |||
5590 | Out << "tl"; | |||
5591 | mangleType(T); | |||
5592 | ||||
5593 | // Drop trailing zero-initialized elements. | |||
5594 | unsigned N = V.getArraySize(); | |||
5595 | if (!V.hasArrayFiller() || isZeroInitialized(ElemT, V.getArrayFiller())) { | |||
5596 | N = V.getArrayInitializedElts(); | |||
5597 | while (N && isZeroInitialized(ElemT, V.getArrayInitializedElt(N - 1))) | |||
5598 | --N; | |||
5599 | } | |||
5600 | ||||
5601 | for (unsigned I = 0; I != N; ++I) { | |||
5602 | const APValue &Elem = I < V.getArrayInitializedElts() | |||
5603 | ? V.getArrayInitializedElt(I) | |||
5604 | : V.getArrayFiller(); | |||
5605 | mangleValueInTemplateArg(ElemT, Elem, false); | |||
5606 | } | |||
5607 | Out << 'E'; | |||
5608 | break; | |||
5609 | } | |||
5610 | ||||
5611 | case APValue::Vector: { | |||
5612 | const VectorType *VT = T->castAs<VectorType>(); | |||
5613 | ||||
5614 | NotPrimaryExpr(); | |||
5615 | Out << "tl"; | |||
5616 | mangleType(T); | |||
5617 | unsigned N = V.getVectorLength(); | |||
5618 | while (N && isZeroInitialized(VT->getElementType(), V.getVectorElt(N - 1))) | |||
5619 | --N; | |||
5620 | for (unsigned I = 0; I != N; ++I) | |||
5621 | mangleValueInTemplateArg(VT->getElementType(), V.getVectorElt(I), false); | |||
5622 | Out << 'E'; | |||
5623 | break; | |||
5624 | } | |||
5625 | ||||
5626 | case APValue::Int: | |||
5627 | mangleIntegerLiteral(T, V.getInt()); | |||
5628 | break; | |||
5629 | ||||
5630 | case APValue::Float: | |||
5631 | mangleFloatLiteral(T, V.getFloat()); | |||
5632 | break; | |||
5633 | ||||
5634 | case APValue::FixedPoint: | |||
5635 | mangleFixedPointLiteral(); | |||
5636 | break; | |||
5637 | ||||
5638 | case APValue::ComplexFloat: { | |||
5639 | const ComplexType *CT = T->castAs<ComplexType>(); | |||
5640 | NotPrimaryExpr(); | |||
5641 | Out << "tl"; | |||
5642 | mangleType(T); | |||
5643 | if (!V.getComplexFloatReal().isPosZero() || | |||
5644 | !V.getComplexFloatImag().isPosZero()) | |||
5645 | mangleFloatLiteral(CT->getElementType(), V.getComplexFloatReal()); | |||
5646 | if (!V.getComplexFloatImag().isPosZero()) | |||
5647 | mangleFloatLiteral(CT->getElementType(), V.getComplexFloatImag()); | |||
5648 | Out << 'E'; | |||
5649 | break; | |||
5650 | } | |||
5651 | ||||
5652 | case APValue::ComplexInt: { | |||
5653 | const ComplexType *CT = T->castAs<ComplexType>(); | |||
5654 | NotPrimaryExpr(); | |||
5655 | Out << "tl"; | |||
5656 | mangleType(T); | |||
5657 | if (V.getComplexIntReal().getBoolValue() || | |||
5658 | V.getComplexIntImag().getBoolValue()) | |||
5659 | mangleIntegerLiteral(CT->getElementType(), V.getComplexIntReal()); | |||
5660 | if (V.getComplexIntImag().getBoolValue()) | |||
5661 | mangleIntegerLiteral(CT->getElementType(), V.getComplexIntImag()); | |||
5662 | Out << 'E'; | |||
5663 | break; | |||
5664 | } | |||
5665 | ||||
5666 | case APValue::LValue: { | |||
5667 | // Proposed in https://github.com/itanium-cxx-abi/cxx-abi/issues/47. | |||
5668 | assert((T->isPointerType() || T->isReferenceType()) &&(static_cast <bool> ((T->isPointerType() || T->isReferenceType ()) && "unexpected type for LValue template arg") ? void (0) : __assert_fail ("(T->isPointerType() || T->isReferenceType()) && \"unexpected type for LValue template arg\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 5669, __extension__ __PRETTY_FUNCTION__)) | |||
5669 | "unexpected type for LValue template arg")(static_cast <bool> ((T->isPointerType() || T->isReferenceType ()) && "unexpected type for LValue template arg") ? void (0) : __assert_fail ("(T->isPointerType() || T->isReferenceType()) && \"unexpected type for LValue template arg\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 5669, __extension__ __PRETTY_FUNCTION__)); | |||
5670 | ||||
5671 | if (V.isNullPointer()) { | |||
5672 | mangleNullPointer(T); | |||
5673 | break; | |||
5674 | } | |||
5675 | ||||
5676 | APValue::LValueBase B = V.getLValueBase(); | |||
5677 | if (!B) { | |||
5678 | // Non-standard mangling for integer cast to a pointer; this can only | |||
5679 | // occur as an extension. | |||
5680 | CharUnits Offset = V.getLValueOffset(); | |||
5681 | if (Offset.isZero()) { | |||
5682 | // This is reinterpret_cast<T*>(0), not a null pointer. Mangle this as | |||
5683 | // a cast, because L <type> 0 E means something else. | |||
5684 | NotPrimaryExpr(); | |||
5685 | Out << "rc"; | |||
5686 | mangleType(T); | |||
5687 | Out << "Li0E"; | |||
5688 | if (TopLevel) | |||
5689 | Out << 'E'; | |||
5690 | } else { | |||
5691 | Out << "L"; | |||
5692 | mangleType(T); | |||
5693 | Out << Offset.getQuantity() << 'E'; | |||
5694 | } | |||
5695 | break; | |||
5696 | } | |||
5697 | ||||
5698 | ASTContext &Ctx = Context.getASTContext(); | |||
5699 | ||||
5700 | enum { Base, Offset, Path } Kind; | |||
5701 | if (!V.hasLValuePath()) { | |||
5702 | // Mangle as (T*)((char*)&base + N). | |||
5703 | if (T->isReferenceType()) { | |||
5704 | NotPrimaryExpr(); | |||
5705 | Out << "decvP"; | |||
5706 | mangleType(T->getPointeeType()); | |||
5707 | } else { | |||
5708 | NotPrimaryExpr(); | |||
5709 | Out << "cv"; | |||
5710 | mangleType(T); | |||
5711 | } | |||
5712 | Out << "plcvPcad"; | |||
5713 | Kind = Offset; | |||
5714 | } else { | |||
5715 | if (!V.getLValuePath().empty() || V.isLValueOnePastTheEnd()) { | |||
5716 | NotPrimaryExpr(); | |||
5717 | // A final conversion to the template parameter's type is usually | |||
5718 | // folded into the 'so' mangling, but we can't do that for 'void*' | |||
5719 | // parameters without introducing collisions. | |||
5720 | if (NeedExactType && T->isVoidPointerType()) { | |||
5721 | Out << "cv"; | |||
5722 | mangleType(T); | |||
5723 | } | |||
5724 | if (T->isPointerType()) | |||
5725 | Out << "ad"; | |||
5726 | Out << "so"; | |||
5727 | mangleType(T->isVoidPointerType() | |||
5728 | ? getLValueType(Ctx, V).getUnqualifiedType() | |||
5729 | : T->getPointeeType()); | |||
5730 | Kind = Path; | |||
5731 | } else { | |||
5732 | if (NeedExactType && | |||
5733 | !Ctx.hasSameType(T->getPointeeType(), getLValueType(Ctx, V)) && | |||
5734 | Ctx.getLangOpts().getClangABICompat() > | |||
5735 | LangOptions::ClangABI::Ver11) { | |||
5736 | NotPrimaryExpr(); | |||
5737 | Out << "cv"; | |||
5738 | mangleType(T); | |||
5739 | } | |||
5740 | if (T->isPointerType()) { | |||
5741 | NotPrimaryExpr(); | |||
5742 | Out << "ad"; | |||
5743 | } | |||
5744 | Kind = Base; | |||
5745 | } | |||
5746 | } | |||
5747 | ||||
5748 | QualType TypeSoFar = B.getType(); | |||
5749 | if (auto *VD = B.dyn_cast<const ValueDecl*>()) { | |||
5750 | Out << 'L'; | |||
5751 | mangle(VD); | |||
5752 | Out << 'E'; | |||
5753 | } else if (auto *E = B.dyn_cast<const Expr*>()) { | |||
5754 | NotPrimaryExpr(); | |||
5755 | mangleExpression(E); | |||
5756 | } else if (auto TI = B.dyn_cast<TypeInfoLValue>()) { | |||
5757 | NotPrimaryExpr(); | |||
5758 | Out << "ti"; | |||
5759 | mangleType(QualType(TI.getType(), 0)); | |||
5760 | } else { | |||
5761 | // We should never see dynamic allocations here. | |||
5762 | llvm_unreachable("unexpected lvalue base kind in template argument")::llvm::llvm_unreachable_internal("unexpected lvalue base kind in template argument" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 5762); | |||
5763 | } | |||
5764 | ||||
5765 | switch (Kind) { | |||
5766 | case Base: | |||
5767 | break; | |||
5768 | ||||
5769 | case Offset: | |||
5770 | Out << 'L'; | |||
5771 | mangleType(Ctx.getPointerDiffType()); | |||
5772 | mangleNumber(V.getLValueOffset().getQuantity()); | |||
5773 | Out << 'E'; | |||
5774 | break; | |||
5775 | ||||
5776 | case Path: | |||
5777 | // <expression> ::= so <referent type> <expr> [<offset number>] | |||
5778 | // <union-selector>* [p] E | |||
5779 | if (!V.getLValueOffset().isZero()) | |||
5780 | mangleNumber(V.getLValueOffset().getQuantity()); | |||
5781 | ||||
5782 | // We model a past-the-end array pointer as array indexing with index N, | |||
5783 | // not with the "past the end" flag. Compensate for that. | |||
5784 | bool OnePastTheEnd = V.isLValueOnePastTheEnd(); | |||
5785 | ||||
5786 | for (APValue::LValuePathEntry E : V.getLValuePath()) { | |||
5787 | if (auto *AT = TypeSoFar->getAsArrayTypeUnsafe()) { | |||
5788 | if (auto *CAT = dyn_cast<ConstantArrayType>(AT)) | |||
5789 | OnePastTheEnd |= CAT->getSize() == E.getAsArrayIndex(); | |||
5790 | TypeSoFar = AT->getElementType(); | |||
5791 | } else { | |||
5792 | const Decl *D = E.getAsBaseOrMember().getPointer(); | |||
5793 | if (auto *FD = dyn_cast<FieldDecl>(D)) { | |||
5794 | // <union-selector> ::= _ <number> | |||
5795 | if (FD->getParent()->isUnion()) { | |||
5796 | Out << '_'; | |||
5797 | if (FD->getFieldIndex()) | |||
5798 | Out << (FD->getFieldIndex() - 1); | |||
5799 | } | |||
5800 | TypeSoFar = FD->getType(); | |||
5801 | } else { | |||
5802 | TypeSoFar = Ctx.getRecordType(cast<CXXRecordDecl>(D)); | |||
5803 | } | |||
5804 | } | |||
5805 | } | |||
5806 | ||||
5807 | if (OnePastTheEnd) | |||
5808 | Out << 'p'; | |||
5809 | Out << 'E'; | |||
5810 | break; | |||
5811 | } | |||
5812 | ||||
5813 | break; | |||
5814 | } | |||
5815 | ||||
5816 | case APValue::MemberPointer: | |||
5817 | // Proposed in https://github.com/itanium-cxx-abi/cxx-abi/issues/47. | |||
5818 | if (!V.getMemberPointerDecl()) { | |||
5819 | mangleNullPointer(T); | |||
5820 | break; | |||
5821 | } | |||
5822 | ||||
5823 | ASTContext &Ctx = Context.getASTContext(); | |||
5824 | ||||
5825 | NotPrimaryExpr(); | |||
5826 | if (!V.getMemberPointerPath().empty()) { | |||
5827 | Out << "mc"; | |||
5828 | mangleType(T); | |||
5829 | } else if (NeedExactType && | |||
5830 | !Ctx.hasSameType( | |||
5831 | T->castAs<MemberPointerType>()->getPointeeType(), | |||
5832 | V.getMemberPointerDecl()->getType()) && | |||
5833 | Ctx.getLangOpts().getClangABICompat() > | |||
5834 | LangOptions::ClangABI::Ver11) { | |||
5835 | Out << "cv"; | |||
5836 | mangleType(T); | |||
5837 | } | |||
5838 | Out << "adL"; | |||
5839 | mangle(V.getMemberPointerDecl()); | |||
5840 | Out << 'E'; | |||
5841 | if (!V.getMemberPointerPath().empty()) { | |||
5842 | CharUnits Offset = | |||
5843 | Context.getASTContext().getMemberPointerPathAdjustment(V); | |||
5844 | if (!Offset.isZero()) | |||
5845 | mangleNumber(Offset.getQuantity()); | |||
5846 | Out << 'E'; | |||
5847 | } | |||
5848 | break; | |||
5849 | } | |||
5850 | ||||
5851 | if (TopLevel && !IsPrimaryExpr) | |||
5852 | Out << 'E'; | |||
5853 | } | |||
5854 | ||||
5855 | void CXXNameMangler::mangleTemplateParameter(unsigned Depth, unsigned Index) { | |||
5856 | // <template-param> ::= T_ # first template parameter | |||
5857 | // ::= T <parameter-2 non-negative number> _ | |||
5858 | // ::= TL <L-1 non-negative number> __ | |||
5859 | // ::= TL <L-1 non-negative number> _ | |||
5860 | // <parameter-2 non-negative number> _ | |||
5861 | // | |||
5862 | // The latter two manglings are from a proposal here: | |||
5863 | // https://github.com/itanium-cxx-abi/cxx-abi/issues/31#issuecomment-528122117 | |||
5864 | Out << 'T'; | |||
5865 | if (Depth != 0) | |||
5866 | Out << 'L' << (Depth - 1) << '_'; | |||
5867 | if (Index != 0) | |||
5868 | Out << (Index - 1); | |||
5869 | Out << '_'; | |||
5870 | } | |||
5871 | ||||
5872 | void CXXNameMangler::mangleSeqID(unsigned SeqID) { | |||
5873 | if (SeqID == 1) | |||
5874 | Out << '0'; | |||
5875 | else if (SeqID > 1) { | |||
5876 | SeqID--; | |||
5877 | ||||
5878 | // <seq-id> is encoded in base-36, using digits and upper case letters. | |||
5879 | char Buffer[7]; // log(2**32) / log(36) ~= 7 | |||
5880 | MutableArrayRef<char> BufferRef(Buffer); | |||
5881 | MutableArrayRef<char>::reverse_iterator I = BufferRef.rbegin(); | |||
5882 | ||||
5883 | for (; SeqID != 0; SeqID /= 36) { | |||
5884 | unsigned C = SeqID % 36; | |||
5885 | *I++ = (C < 10 ? '0' + C : 'A' + C - 10); | |||
5886 | } | |||
5887 | ||||
5888 | Out.write(I.base(), I - BufferRef.rbegin()); | |||
5889 | } | |||
5890 | Out << '_'; | |||
5891 | } | |||
5892 | ||||
5893 | void CXXNameMangler::mangleExistingSubstitution(TemplateName tname) { | |||
5894 | bool result = mangleSubstitution(tname); | |||
5895 | assert(result && "no existing substitution for template name")(static_cast <bool> (result && "no existing substitution for template name" ) ? void (0) : __assert_fail ("result && \"no existing substitution for template name\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 5895, __extension__ __PRETTY_FUNCTION__)); | |||
5896 | (void) result; | |||
5897 | } | |||
5898 | ||||
5899 | // <substitution> ::= S <seq-id> _ | |||
5900 | // ::= S_ | |||
5901 | bool CXXNameMangler::mangleSubstitution(const NamedDecl *ND) { | |||
5902 | // Try one of the standard substitutions first. | |||
5903 | if (mangleStandardSubstitution(ND)) | |||
5904 | return true; | |||
5905 | ||||
5906 | ND = cast<NamedDecl>(ND->getCanonicalDecl()); | |||
5907 | return mangleSubstitution(reinterpret_cast<uintptr_t>(ND)); | |||
5908 | } | |||
5909 | ||||
5910 | /// Determine whether the given type has any qualifiers that are relevant for | |||
5911 | /// substitutions. | |||
5912 | static bool hasMangledSubstitutionQualifiers(QualType T) { | |||
5913 | Qualifiers Qs = T.getQualifiers(); | |||
5914 | return Qs.getCVRQualifiers() || Qs.hasAddressSpace() || Qs.hasUnaligned(); | |||
5915 | } | |||
5916 | ||||
5917 | bool CXXNameMangler::mangleSubstitution(QualType T) { | |||
5918 | if (!hasMangledSubstitutionQualifiers(T)) { | |||
5919 | if (const RecordType *RT = T->getAs<RecordType>()) | |||
5920 | return mangleSubstitution(RT->getDecl()); | |||
5921 | } | |||
5922 | ||||
5923 | uintptr_t TypePtr = reinterpret_cast<uintptr_t>(T.getAsOpaquePtr()); | |||
5924 | ||||
5925 | return mangleSubstitution(TypePtr); | |||
5926 | } | |||
5927 | ||||
5928 | bool CXXNameMangler::mangleSubstitution(TemplateName Template) { | |||
5929 | if (TemplateDecl *TD = Template.getAsTemplateDecl()) | |||
5930 | return mangleSubstitution(TD); | |||
5931 | ||||
5932 | Template = Context.getASTContext().getCanonicalTemplateName(Template); | |||
5933 | return mangleSubstitution( | |||
5934 | reinterpret_cast<uintptr_t>(Template.getAsVoidPointer())); | |||
5935 | } | |||
5936 | ||||
5937 | bool CXXNameMangler::mangleSubstitution(uintptr_t Ptr) { | |||
5938 | llvm::DenseMap<uintptr_t, unsigned>::iterator I = Substitutions.find(Ptr); | |||
5939 | if (I == Substitutions.end()) | |||
5940 | return false; | |||
5941 | ||||
5942 | unsigned SeqID = I->second; | |||
5943 | Out << 'S'; | |||
5944 | mangleSeqID(SeqID); | |||
5945 | ||||
5946 | return true; | |||
5947 | } | |||
5948 | ||||
5949 | static bool isCharType(QualType T) { | |||
5950 | if (T.isNull()) | |||
5951 | return false; | |||
5952 | ||||
5953 | return T->isSpecificBuiltinType(BuiltinType::Char_S) || | |||
5954 | T->isSpecificBuiltinType(BuiltinType::Char_U); | |||
5955 | } | |||
5956 | ||||
5957 | /// Returns whether a given type is a template specialization of a given name | |||
5958 | /// with a single argument of type char. | |||
5959 | static bool isCharSpecialization(QualType T, const char *Name) { | |||
5960 | if (T.isNull()) | |||
5961 | return false; | |||
5962 | ||||
5963 | const RecordType *RT = T->getAs<RecordType>(); | |||
5964 | if (!RT) | |||
5965 | return false; | |||
5966 | ||||
5967 | const ClassTemplateSpecializationDecl *SD = | |||
5968 | dyn_cast<ClassTemplateSpecializationDecl>(RT->getDecl()); | |||
5969 | if (!SD) | |||
5970 | return false; | |||
5971 | ||||
5972 | if (!isStdNamespace(getEffectiveDeclContext(SD))) | |||
5973 | return false; | |||
5974 | ||||
5975 | const TemplateArgumentList &TemplateArgs = SD->getTemplateArgs(); | |||
5976 | if (TemplateArgs.size() != 1) | |||
5977 | return false; | |||
5978 | ||||
5979 | if (!isCharType(TemplateArgs[0].getAsType())) | |||
5980 | return false; | |||
5981 | ||||
5982 | return SD->getIdentifier()->getName() == Name; | |||
5983 | } | |||
5984 | ||||
5985 | template <std::size_t StrLen> | |||
5986 | static bool isStreamCharSpecialization(const ClassTemplateSpecializationDecl*SD, | |||
5987 | const char (&Str)[StrLen]) { | |||
5988 | if (!SD->getIdentifier()->isStr(Str)) | |||
5989 | return false; | |||
5990 | ||||
5991 | const TemplateArgumentList &TemplateArgs = SD->getTemplateArgs(); | |||
5992 | if (TemplateArgs.size() != 2) | |||
5993 | return false; | |||
5994 | ||||
5995 | if (!isCharType(TemplateArgs[0].getAsType())) | |||
5996 | return false; | |||
5997 | ||||
5998 | if (!isCharSpecialization(TemplateArgs[1].getAsType(), "char_traits")) | |||
5999 | return false; | |||
6000 | ||||
6001 | return true; | |||
6002 | } | |||
6003 | ||||
6004 | bool CXXNameMangler::mangleStandardSubstitution(const NamedDecl *ND) { | |||
6005 | // <substitution> ::= St # ::std:: | |||
6006 | if (const NamespaceDecl *NS = dyn_cast<NamespaceDecl>(ND)) { | |||
6007 | if (isStd(NS)) { | |||
6008 | Out << "St"; | |||
6009 | return true; | |||
6010 | } | |||
6011 | } | |||
6012 | ||||
6013 | if (const ClassTemplateDecl *TD = dyn_cast<ClassTemplateDecl>(ND)) { | |||
6014 | if (!isStdNamespace(getEffectiveDeclContext(TD))) | |||
6015 | return false; | |||
6016 | ||||
6017 | // <substitution> ::= Sa # ::std::allocator | |||
6018 | if (TD->getIdentifier()->isStr("allocator")) { | |||
6019 | Out << "Sa"; | |||
6020 | return true; | |||
6021 | } | |||
6022 | ||||
6023 | // <<substitution> ::= Sb # ::std::basic_string | |||
6024 | if (TD->getIdentifier()->isStr("basic_string")) { | |||
6025 | Out << "Sb"; | |||
6026 | return true; | |||
6027 | } | |||
6028 | } | |||
6029 | ||||
6030 | if (const ClassTemplateSpecializationDecl *SD = | |||
6031 | dyn_cast<ClassTemplateSpecializationDecl>(ND)) { | |||
6032 | if (!isStdNamespace(getEffectiveDeclContext(SD))) | |||
6033 | return false; | |||
6034 | ||||
6035 | // <substitution> ::= Ss # ::std::basic_string<char, | |||
6036 | // ::std::char_traits<char>, | |||
6037 | // ::std::allocator<char> > | |||
6038 | if (SD->getIdentifier()->isStr("basic_string")) { | |||
6039 | const TemplateArgumentList &TemplateArgs = SD->getTemplateArgs(); | |||
6040 | ||||
6041 | if (TemplateArgs.size() != 3) | |||
6042 | return false; | |||
6043 | ||||
6044 | if (!isCharType(TemplateArgs[0].getAsType())) | |||
6045 | return false; | |||
6046 | ||||
6047 | if (!isCharSpecialization(TemplateArgs[1].getAsType(), "char_traits")) | |||
6048 | return false; | |||
6049 | ||||
6050 | if (!isCharSpecialization(TemplateArgs[2].getAsType(), "allocator")) | |||
6051 | return false; | |||
6052 | ||||
6053 | Out << "Ss"; | |||
6054 | return true; | |||
6055 | } | |||
6056 | ||||
6057 | // <substitution> ::= Si # ::std::basic_istream<char, | |||
6058 | // ::std::char_traits<char> > | |||
6059 | if (isStreamCharSpecialization(SD, "basic_istream")) { | |||
6060 | Out << "Si"; | |||
6061 | return true; | |||
6062 | } | |||
6063 | ||||
6064 | // <substitution> ::= So # ::std::basic_ostream<char, | |||
6065 | // ::std::char_traits<char> > | |||
6066 | if (isStreamCharSpecialization(SD, "basic_ostream")) { | |||
6067 | Out << "So"; | |||
6068 | return true; | |||
6069 | } | |||
6070 | ||||
6071 | // <substitution> ::= Sd # ::std::basic_iostream<char, | |||
6072 | // ::std::char_traits<char> > | |||
6073 | if (isStreamCharSpecialization(SD, "basic_iostream")) { | |||
6074 | Out << "Sd"; | |||
6075 | return true; | |||
6076 | } | |||
6077 | } | |||
6078 | return false; | |||
6079 | } | |||
6080 | ||||
6081 | void CXXNameMangler::addSubstitution(QualType T) { | |||
6082 | if (!hasMangledSubstitutionQualifiers(T)) { | |||
6083 | if (const RecordType *RT = T->getAs<RecordType>()) { | |||
6084 | addSubstitution(RT->getDecl()); | |||
6085 | return; | |||
6086 | } | |||
6087 | } | |||
6088 | ||||
6089 | uintptr_t TypePtr = reinterpret_cast<uintptr_t>(T.getAsOpaquePtr()); | |||
6090 | addSubstitution(TypePtr); | |||
6091 | } | |||
6092 | ||||
6093 | void CXXNameMangler::addSubstitution(TemplateName Template) { | |||
6094 | if (TemplateDecl *TD = Template.getAsTemplateDecl()) | |||
6095 | return addSubstitution(TD); | |||
6096 | ||||
6097 | Template = Context.getASTContext().getCanonicalTemplateName(Template); | |||
6098 | addSubstitution(reinterpret_cast<uintptr_t>(Template.getAsVoidPointer())); | |||
6099 | } | |||
6100 | ||||
6101 | void CXXNameMangler::addSubstitution(uintptr_t Ptr) { | |||
6102 | assert(!Substitutions.count(Ptr) && "Substitution already exists!")(static_cast <bool> (!Substitutions.count(Ptr) && "Substitution already exists!") ? void (0) : __assert_fail ( "!Substitutions.count(Ptr) && \"Substitution already exists!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 6102, __extension__ __PRETTY_FUNCTION__)); | |||
6103 | Substitutions[Ptr] = SeqID++; | |||
6104 | } | |||
6105 | ||||
6106 | void CXXNameMangler::extendSubstitutions(CXXNameMangler* Other) { | |||
6107 | assert(Other->SeqID >= SeqID && "Must be superset of substitutions!")(static_cast <bool> (Other->SeqID >= SeqID && "Must be superset of substitutions!") ? void (0) : __assert_fail ("Other->SeqID >= SeqID && \"Must be superset of substitutions!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 6107, __extension__ __PRETTY_FUNCTION__)); | |||
6108 | if (Other->SeqID > SeqID) { | |||
6109 | Substitutions.swap(Other->Substitutions); | |||
6110 | SeqID = Other->SeqID; | |||
6111 | } | |||
6112 | } | |||
6113 | ||||
6114 | CXXNameMangler::AbiTagList | |||
6115 | CXXNameMangler::makeFunctionReturnTypeTags(const FunctionDecl *FD) { | |||
6116 | // When derived abi tags are disabled there is no need to make any list. | |||
6117 | if (DisableDerivedAbiTags) | |||
6118 | return AbiTagList(); | |||
6119 | ||||
6120 | llvm::raw_null_ostream NullOutStream; | |||
6121 | CXXNameMangler TrackReturnTypeTags(*this, NullOutStream); | |||
6122 | TrackReturnTypeTags.disableDerivedAbiTags(); | |||
6123 | ||||
6124 | const FunctionProtoType *Proto = | |||
6125 | cast<FunctionProtoType>(FD->getType()->getAs<FunctionType>()); | |||
6126 | FunctionTypeDepthState saved = TrackReturnTypeTags.FunctionTypeDepth.push(); | |||
6127 | TrackReturnTypeTags.FunctionTypeDepth.enterResultType(); | |||
6128 | TrackReturnTypeTags.mangleType(Proto->getReturnType()); | |||
6129 | TrackReturnTypeTags.FunctionTypeDepth.leaveResultType(); | |||
6130 | TrackReturnTypeTags.FunctionTypeDepth.pop(saved); | |||
6131 | ||||
6132 | return TrackReturnTypeTags.AbiTagsRoot.getSortedUniqueUsedAbiTags(); | |||
6133 | } | |||
6134 | ||||
6135 | CXXNameMangler::AbiTagList | |||
6136 | CXXNameMangler::makeVariableTypeTags(const VarDecl *VD) { | |||
6137 | // When derived abi tags are disabled there is no need to make any list. | |||
6138 | if (DisableDerivedAbiTags) | |||
6139 | return AbiTagList(); | |||
6140 | ||||
6141 | llvm::raw_null_ostream NullOutStream; | |||
6142 | CXXNameMangler TrackVariableType(*this, NullOutStream); | |||
6143 | TrackVariableType.disableDerivedAbiTags(); | |||
6144 | ||||
6145 | TrackVariableType.mangleType(VD->getType()); | |||
6146 | ||||
6147 | return TrackVariableType.AbiTagsRoot.getSortedUniqueUsedAbiTags(); | |||
6148 | } | |||
6149 | ||||
6150 | bool CXXNameMangler::shouldHaveAbiTags(ItaniumMangleContextImpl &C, | |||
6151 | const VarDecl *VD) { | |||
6152 | llvm::raw_null_ostream NullOutStream; | |||
6153 | CXXNameMangler TrackAbiTags(C, NullOutStream, nullptr, true); | |||
6154 | TrackAbiTags.mangle(VD); | |||
6155 | return TrackAbiTags.AbiTagsRoot.getUsedAbiTags().size(); | |||
6156 | } | |||
6157 | ||||
6158 | // | |||
6159 | ||||
6160 | /// Mangles the name of the declaration D and emits that name to the given | |||
6161 | /// output stream. | |||
6162 | /// | |||
6163 | /// If the declaration D requires a mangled name, this routine will emit that | |||
6164 | /// mangled name to \p os and return true. Otherwise, \p os will be unchanged | |||
6165 | /// and this routine will return false. In this case, the caller should just | |||
6166 | /// emit the identifier of the declaration (\c D->getIdentifier()) as its | |||
6167 | /// name. | |||
6168 | void ItaniumMangleContextImpl::mangleCXXName(GlobalDecl GD, | |||
6169 | raw_ostream &Out) { | |||
6170 | const NamedDecl *D = cast<NamedDecl>(GD.getDecl()); | |||
6171 | assert((isa<FunctionDecl, VarDecl, TemplateParamObjectDecl>(D)) &&(static_cast <bool> ((isa<FunctionDecl, VarDecl, TemplateParamObjectDecl >(D)) && "Invalid mangleName() call, argument is not a variable or function!" ) ? void (0) : __assert_fail ("(isa<FunctionDecl, VarDecl, TemplateParamObjectDecl>(D)) && \"Invalid mangleName() call, argument is not a variable or function!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 6172, __extension__ __PRETTY_FUNCTION__)) | |||
6172 | "Invalid mangleName() call, argument is not a variable or function!")(static_cast <bool> ((isa<FunctionDecl, VarDecl, TemplateParamObjectDecl >(D)) && "Invalid mangleName() call, argument is not a variable or function!" ) ? void (0) : __assert_fail ("(isa<FunctionDecl, VarDecl, TemplateParamObjectDecl>(D)) && \"Invalid mangleName() call, argument is not a variable or function!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 6172, __extension__ __PRETTY_FUNCTION__)); | |||
6173 | ||||
6174 | PrettyStackTraceDecl CrashInfo(D, SourceLocation(), | |||
6175 | getASTContext().getSourceManager(), | |||
6176 | "Mangling declaration"); | |||
6177 | ||||
6178 | if (auto *CD = dyn_cast<CXXConstructorDecl>(D)) { | |||
6179 | auto Type = GD.getCtorType(); | |||
6180 | CXXNameMangler Mangler(*this, Out, CD, Type); | |||
6181 | return Mangler.mangle(GlobalDecl(CD, Type)); | |||
6182 | } | |||
6183 | ||||
6184 | if (auto *DD = dyn_cast<CXXDestructorDecl>(D)) { | |||
6185 | auto Type = GD.getDtorType(); | |||
6186 | CXXNameMangler Mangler(*this, Out, DD, Type); | |||
6187 | return Mangler.mangle(GlobalDecl(DD, Type)); | |||
6188 | } | |||
6189 | ||||
6190 | CXXNameMangler Mangler(*this, Out, D); | |||
6191 | Mangler.mangle(GD); | |||
6192 | } | |||
6193 | ||||
6194 | void ItaniumMangleContextImpl::mangleCXXCtorComdat(const CXXConstructorDecl *D, | |||
6195 | raw_ostream &Out) { | |||
6196 | CXXNameMangler Mangler(*this, Out, D, Ctor_Comdat); | |||
6197 | Mangler.mangle(GlobalDecl(D, Ctor_Comdat)); | |||
6198 | } | |||
6199 | ||||
6200 | void ItaniumMangleContextImpl::mangleCXXDtorComdat(const CXXDestructorDecl *D, | |||
6201 | raw_ostream &Out) { | |||
6202 | CXXNameMangler Mangler(*this, Out, D, Dtor_Comdat); | |||
6203 | Mangler.mangle(GlobalDecl(D, Dtor_Comdat)); | |||
6204 | } | |||
6205 | ||||
6206 | void ItaniumMangleContextImpl::mangleThunk(const CXXMethodDecl *MD, | |||
6207 | const ThunkInfo &Thunk, | |||
6208 | raw_ostream &Out) { | |||
6209 | // <special-name> ::= T <call-offset> <base encoding> | |||
6210 | // # base is the nominal target function of thunk | |||
6211 | // <special-name> ::= Tc <call-offset> <call-offset> <base encoding> | |||
6212 | // # base is the nominal target function of thunk | |||
6213 | // # first call-offset is 'this' adjustment | |||
6214 | // # second call-offset is result adjustment | |||
6215 | ||||
6216 | assert(!isa<CXXDestructorDecl>(MD) &&(static_cast <bool> (!isa<CXXDestructorDecl>(MD) && "Use mangleCXXDtor for destructor decls!") ? void (0) : __assert_fail ("!isa<CXXDestructorDecl>(MD) && \"Use mangleCXXDtor for destructor decls!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 6217, __extension__ __PRETTY_FUNCTION__)) | |||
6217 | "Use mangleCXXDtor for destructor decls!")(static_cast <bool> (!isa<CXXDestructorDecl>(MD) && "Use mangleCXXDtor for destructor decls!") ? void (0) : __assert_fail ("!isa<CXXDestructorDecl>(MD) && \"Use mangleCXXDtor for destructor decls!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 6217, __extension__ __PRETTY_FUNCTION__)); | |||
6218 | CXXNameMangler Mangler(*this, Out); | |||
6219 | Mangler.getStream() << "_ZT"; | |||
6220 | if (!Thunk.Return.isEmpty()) | |||
6221 | Mangler.getStream() << 'c'; | |||
6222 | ||||
6223 | // Mangle the 'this' pointer adjustment. | |||
6224 | Mangler.mangleCallOffset(Thunk.This.NonVirtual, | |||
6225 | Thunk.This.Virtual.Itanium.VCallOffsetOffset); | |||
6226 | ||||
6227 | // Mangle the return pointer adjustment if there is one. | |||
6228 | if (!Thunk.Return.isEmpty()) | |||
6229 | Mangler.mangleCallOffset(Thunk.Return.NonVirtual, | |||
6230 | Thunk.Return.Virtual.Itanium.VBaseOffsetOffset); | |||
6231 | ||||
6232 | Mangler.mangleFunctionEncoding(MD); | |||
6233 | } | |||
6234 | ||||
6235 | void ItaniumMangleContextImpl::mangleCXXDtorThunk( | |||
6236 | const CXXDestructorDecl *DD, CXXDtorType Type, | |||
6237 | const ThisAdjustment &ThisAdjustment, raw_ostream &Out) { | |||
6238 | // <special-name> ::= T <call-offset> <base encoding> | |||
6239 | // # base is the nominal target function of thunk | |||
6240 | CXXNameMangler Mangler(*this, Out, DD, Type); | |||
6241 | Mangler.getStream() << "_ZT"; | |||
6242 | ||||
6243 | // Mangle the 'this' pointer adjustment. | |||
6244 | Mangler.mangleCallOffset(ThisAdjustment.NonVirtual, | |||
6245 | ThisAdjustment.Virtual.Itanium.VCallOffsetOffset); | |||
6246 | ||||
6247 | Mangler.mangleFunctionEncoding(GlobalDecl(DD, Type)); | |||
6248 | } | |||
6249 | ||||
6250 | /// Returns the mangled name for a guard variable for the passed in VarDecl. | |||
6251 | void ItaniumMangleContextImpl::mangleStaticGuardVariable(const VarDecl *D, | |||
6252 | raw_ostream &Out) { | |||
6253 | // <special-name> ::= GV <object name> # Guard variable for one-time | |||
6254 | // # initialization | |||
6255 | CXXNameMangler Mangler(*this, Out); | |||
6256 | // GCC 5.3.0 doesn't emit derived ABI tags for local names but that seems to | |||
6257 | // be a bug that is fixed in trunk. | |||
6258 | Mangler.getStream() << "_ZGV"; | |||
6259 | Mangler.mangleName(D); | |||
6260 | } | |||
6261 | ||||
6262 | void ItaniumMangleContextImpl::mangleDynamicInitializer(const VarDecl *MD, | |||
6263 | raw_ostream &Out) { | |||
6264 | // These symbols are internal in the Itanium ABI, so the names don't matter. | |||
6265 | // Clang has traditionally used this symbol and allowed LLVM to adjust it to | |||
6266 | // avoid duplicate symbols. | |||
6267 | Out << "__cxx_global_var_init"; | |||
6268 | } | |||
6269 | ||||
6270 | void ItaniumMangleContextImpl::mangleDynamicAtExitDestructor(const VarDecl *D, | |||
6271 | raw_ostream &Out) { | |||
6272 | // Prefix the mangling of D with __dtor_. | |||
6273 | CXXNameMangler Mangler(*this, Out); | |||
6274 | Mangler.getStream() << "__dtor_"; | |||
6275 | if (shouldMangleDeclName(D)) | |||
6276 | Mangler.mangle(D); | |||
6277 | else | |||
6278 | Mangler.getStream() << D->getName(); | |||
6279 | } | |||
6280 | ||||
6281 | void ItaniumMangleContextImpl::mangleDynamicStermFinalizer(const VarDecl *D, | |||
6282 | raw_ostream &Out) { | |||
6283 | // Clang generates these internal-linkage functions as part of its | |||
6284 | // implementation of the XL ABI. | |||
6285 | CXXNameMangler Mangler(*this, Out); | |||
6286 | Mangler.getStream() << "__finalize_"; | |||
6287 | if (shouldMangleDeclName(D)) | |||
6288 | Mangler.mangle(D); | |||
6289 | else | |||
6290 | Mangler.getStream() << D->getName(); | |||
6291 | } | |||
6292 | ||||
6293 | void ItaniumMangleContextImpl::mangleSEHFilterExpression( | |||
6294 | const NamedDecl *EnclosingDecl, raw_ostream &Out) { | |||
6295 | CXXNameMangler Mangler(*this, Out); | |||
6296 | Mangler.getStream() << "__filt_"; | |||
6297 | if (shouldMangleDeclName(EnclosingDecl)) | |||
6298 | Mangler.mangle(EnclosingDecl); | |||
6299 | else | |||
6300 | Mangler.getStream() << EnclosingDecl->getName(); | |||
6301 | } | |||
6302 | ||||
6303 | void ItaniumMangleContextImpl::mangleSEHFinallyBlock( | |||
6304 | const NamedDecl *EnclosingDecl, raw_ostream &Out) { | |||
6305 | CXXNameMangler Mangler(*this, Out); | |||
6306 | Mangler.getStream() << "__fin_"; | |||
6307 | if (shouldMangleDeclName(EnclosingDecl)) | |||
6308 | Mangler.mangle(EnclosingDecl); | |||
6309 | else | |||
6310 | Mangler.getStream() << EnclosingDecl->getName(); | |||
6311 | } | |||
6312 | ||||
6313 | void ItaniumMangleContextImpl::mangleItaniumThreadLocalInit(const VarDecl *D, | |||
6314 | raw_ostream &Out) { | |||
6315 | // <special-name> ::= TH <object name> | |||
6316 | CXXNameMangler Mangler(*this, Out); | |||
6317 | Mangler.getStream() << "_ZTH"; | |||
6318 | Mangler.mangleName(D); | |||
6319 | } | |||
6320 | ||||
6321 | void | |||
6322 | ItaniumMangleContextImpl::mangleItaniumThreadLocalWrapper(const VarDecl *D, | |||
6323 | raw_ostream &Out) { | |||
6324 | // <special-name> ::= TW <object name> | |||
6325 | CXXNameMangler Mangler(*this, Out); | |||
6326 | Mangler.getStream() << "_ZTW"; | |||
6327 | Mangler.mangleName(D); | |||
6328 | } | |||
6329 | ||||
6330 | void ItaniumMangleContextImpl::mangleReferenceTemporary(const VarDecl *D, | |||
6331 | unsigned ManglingNumber, | |||
6332 | raw_ostream &Out) { | |||
6333 | // We match the GCC mangling here. | |||
6334 | // <special-name> ::= GR <object name> | |||
6335 | CXXNameMangler Mangler(*this, Out); | |||
6336 | Mangler.getStream() << "_ZGR"; | |||
6337 | Mangler.mangleName(D); | |||
6338 | assert(ManglingNumber > 0 && "Reference temporary mangling number is zero!")(static_cast <bool> (ManglingNumber > 0 && "Reference temporary mangling number is zero!" ) ? void (0) : __assert_fail ("ManglingNumber > 0 && \"Reference temporary mangling number is zero!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 6338, __extension__ __PRETTY_FUNCTION__)); | |||
6339 | Mangler.mangleSeqID(ManglingNumber - 1); | |||
6340 | } | |||
6341 | ||||
6342 | void ItaniumMangleContextImpl::mangleCXXVTable(const CXXRecordDecl *RD, | |||
6343 | raw_ostream &Out) { | |||
6344 | // <special-name> ::= TV <type> # virtual table | |||
6345 | CXXNameMangler Mangler(*this, Out); | |||
6346 | Mangler.getStream() << "_ZTV"; | |||
6347 | Mangler.mangleNameOrStandardSubstitution(RD); | |||
6348 | } | |||
6349 | ||||
6350 | void ItaniumMangleContextImpl::mangleCXXVTT(const CXXRecordDecl *RD, | |||
6351 | raw_ostream &Out) { | |||
6352 | // <special-name> ::= TT <type> # VTT structure | |||
6353 | CXXNameMangler Mangler(*this, Out); | |||
6354 | Mangler.getStream() << "_ZTT"; | |||
6355 | Mangler.mangleNameOrStandardSubstitution(RD); | |||
6356 | } | |||
6357 | ||||
6358 | void ItaniumMangleContextImpl::mangleCXXCtorVTable(const CXXRecordDecl *RD, | |||
6359 | int64_t Offset, | |||
6360 | const CXXRecordDecl *Type, | |||
6361 | raw_ostream &Out) { | |||
6362 | // <special-name> ::= TC <type> <offset number> _ <base type> | |||
6363 | CXXNameMangler Mangler(*this, Out); | |||
6364 | Mangler.getStream() << "_ZTC"; | |||
6365 | Mangler.mangleNameOrStandardSubstitution(RD); | |||
6366 | Mangler.getStream() << Offset; | |||
6367 | Mangler.getStream() << '_'; | |||
6368 | Mangler.mangleNameOrStandardSubstitution(Type); | |||
6369 | } | |||
6370 | ||||
6371 | void ItaniumMangleContextImpl::mangleCXXRTTI(QualType Ty, raw_ostream &Out) { | |||
6372 | // <special-name> ::= TI <type> # typeinfo structure | |||
6373 | assert(!Ty.hasQualifiers() && "RTTI info cannot have top-level qualifiers")(static_cast <bool> (!Ty.hasQualifiers() && "RTTI info cannot have top-level qualifiers" ) ? void (0) : __assert_fail ("!Ty.hasQualifiers() && \"RTTI info cannot have top-level qualifiers\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 6373, __extension__ __PRETTY_FUNCTION__)); | |||
6374 | CXXNameMangler Mangler(*this, Out); | |||
6375 | Mangler.getStream() << "_ZTI"; | |||
6376 | Mangler.mangleType(Ty); | |||
6377 | } | |||
6378 | ||||
6379 | void ItaniumMangleContextImpl::mangleCXXRTTIName(QualType Ty, | |||
6380 | raw_ostream &Out) { | |||
6381 | // <special-name> ::= TS <type> # typeinfo name (null terminated byte string) | |||
6382 | CXXNameMangler Mangler(*this, Out); | |||
6383 | Mangler.getStream() << "_ZTS"; | |||
6384 | Mangler.mangleType(Ty); | |||
6385 | } | |||
6386 | ||||
6387 | void ItaniumMangleContextImpl::mangleTypeName(QualType Ty, raw_ostream &Out) { | |||
6388 | mangleCXXRTTIName(Ty, Out); | |||
6389 | } | |||
6390 | ||||
6391 | void ItaniumMangleContextImpl::mangleStringLiteral(const StringLiteral *, raw_ostream &) { | |||
6392 | llvm_unreachable("Can't mangle string literals")::llvm::llvm_unreachable_internal("Can't mangle string literals" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/lib/AST/ItaniumMangle.cpp" , 6392); | |||
6393 | } | |||
6394 | ||||
6395 | void ItaniumMangleContextImpl::mangleLambdaSig(const CXXRecordDecl *Lambda, | |||
6396 | raw_ostream &Out) { | |||
6397 | CXXNameMangler Mangler(*this, Out); | |||
6398 | Mangler.mangleLambdaSig(Lambda); | |||
6399 | } | |||
6400 | ||||
6401 | ItaniumMangleContext *ItaniumMangleContext::create(ASTContext &Context, | |||
6402 | DiagnosticsEngine &Diags) { | |||
6403 | return new ItaniumMangleContextImpl( | |||
6404 | Context, Diags, | |||
6405 | [](ASTContext &, const NamedDecl *) -> llvm::Optional<unsigned> { | |||
6406 | return llvm::None; | |||
6407 | }); | |||
6408 | } | |||
6409 | ||||
6410 | ItaniumMangleContext * | |||
6411 | ItaniumMangleContext::create(ASTContext &Context, DiagnosticsEngine &Diags, | |||
6412 | DiscriminatorOverrideTy DiscriminatorOverride) { | |||
6413 | return new ItaniumMangleContextImpl(Context, Diags, DiscriminatorOverride); | |||
6414 | } |
1 | //===- DeclarationName.h - Representation of declaration names --*- 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 | // This file declares the DeclarationName and DeclarationNameTable classes. |
10 | // |
11 | //===----------------------------------------------------------------------===// |
12 | |
13 | #ifndef LLVM_CLANG_AST_DECLARATIONNAME_H |
14 | #define LLVM_CLANG_AST_DECLARATIONNAME_H |
15 | |
16 | #include "clang/AST/Type.h" |
17 | #include "clang/Basic/Diagnostic.h" |
18 | #include "clang/Basic/IdentifierTable.h" |
19 | #include "clang/Basic/OperatorKinds.h" |
20 | #include "clang/Basic/PartialDiagnostic.h" |
21 | #include "clang/Basic/SourceLocation.h" |
22 | #include "llvm/ADT/DenseMapInfo.h" |
23 | #include "llvm/ADT/FoldingSet.h" |
24 | #include "llvm/Support/Compiler.h" |
25 | #include "llvm/Support/type_traits.h" |
26 | #include <cassert> |
27 | #include <cstdint> |
28 | #include <cstring> |
29 | #include <string> |
30 | |
31 | namespace clang { |
32 | |
33 | class ASTContext; |
34 | template <typename> class CanQual; |
35 | class DeclarationName; |
36 | class DeclarationNameTable; |
37 | class MultiKeywordSelector; |
38 | struct PrintingPolicy; |
39 | class TemplateDecl; |
40 | class TypeSourceInfo; |
41 | class UsingDirectiveDecl; |
42 | |
43 | using CanQualType = CanQual<Type>; |
44 | |
45 | namespace detail { |
46 | |
47 | /// CXXSpecialNameExtra records the type associated with one of the "special" |
48 | /// kinds of declaration names in C++, e.g., constructors, destructors, and |
49 | /// conversion functions. Note that CXXSpecialName is used for C++ constructor, |
50 | /// destructor and conversion functions, but the actual kind is not stored in |
51 | /// CXXSpecialName. Instead we use three different FoldingSet<CXXSpecialName> |
52 | /// in DeclarationNameTable. |
53 | class alignas(IdentifierInfoAlignment) CXXSpecialNameExtra |
54 | : public llvm::FoldingSetNode { |
55 | friend class clang::DeclarationName; |
56 | friend class clang::DeclarationNameTable; |
57 | |
58 | /// The type associated with this declaration name. |
59 | QualType Type; |
60 | |
61 | /// Extra information associated with this declaration name that |
62 | /// can be used by the front end. All bits are really needed |
63 | /// so it is not possible to stash something in the low order bits. |
64 | void *FETokenInfo; |
65 | |
66 | CXXSpecialNameExtra(QualType QT) : Type(QT), FETokenInfo(nullptr) {} |
67 | |
68 | public: |
69 | void Profile(llvm::FoldingSetNodeID &ID) { |
70 | ID.AddPointer(Type.getAsOpaquePtr()); |
71 | } |
72 | }; |
73 | |
74 | /// Contains extra information for the name of a C++ deduction guide. |
75 | class alignas(IdentifierInfoAlignment) CXXDeductionGuideNameExtra |
76 | : public detail::DeclarationNameExtra, |
77 | public llvm::FoldingSetNode { |
78 | friend class clang::DeclarationName; |
79 | friend class clang::DeclarationNameTable; |
80 | |
81 | /// The template named by the deduction guide. |
82 | TemplateDecl *Template; |
83 | |
84 | /// Extra information associated with this operator name that |
85 | /// can be used by the front end. All bits are really needed |
86 | /// so it is not possible to stash something in the low order bits. |
87 | void *FETokenInfo; |
88 | |
89 | CXXDeductionGuideNameExtra(TemplateDecl *TD) |
90 | : DeclarationNameExtra(CXXDeductionGuideName), Template(TD), |
91 | FETokenInfo(nullptr) {} |
92 | |
93 | public: |
94 | void Profile(llvm::FoldingSetNodeID &ID) { ID.AddPointer(Template); } |
95 | }; |
96 | |
97 | /// Contains extra information for the name of an overloaded operator |
98 | /// in C++, such as "operator+. This do not includes literal or conversion |
99 | /// operators. For literal operators see CXXLiteralOperatorIdName and for |
100 | /// conversion operators see CXXSpecialNameExtra. |
101 | class alignas(IdentifierInfoAlignment) CXXOperatorIdName { |
102 | friend class clang::DeclarationName; |
103 | friend class clang::DeclarationNameTable; |
104 | |
105 | /// The kind of this operator. |
106 | OverloadedOperatorKind Kind = OO_None; |
107 | |
108 | /// Extra information associated with this operator name that |
109 | /// can be used by the front end. All bits are really needed |
110 | /// so it is not possible to stash something in the low order bits. |
111 | void *FETokenInfo = nullptr; |
112 | }; |
113 | |
114 | /// Contains the actual identifier that makes up the |
115 | /// name of a C++ literal operator. |
116 | class alignas(IdentifierInfoAlignment) CXXLiteralOperatorIdName |
117 | : public detail::DeclarationNameExtra, |
118 | public llvm::FoldingSetNode { |
119 | friend class clang::DeclarationName; |
120 | friend class clang::DeclarationNameTable; |
121 | |
122 | IdentifierInfo *ID; |
123 | |
124 | /// Extra information associated with this operator name that |
125 | /// can be used by the front end. All bits are really needed |
126 | /// so it is not possible to stash something in the low order bits. |
127 | void *FETokenInfo; |
128 | |
129 | CXXLiteralOperatorIdName(IdentifierInfo *II) |
130 | : DeclarationNameExtra(CXXLiteralOperatorName), ID(II), |
131 | FETokenInfo(nullptr) {} |
132 | |
133 | public: |
134 | void Profile(llvm::FoldingSetNodeID &FSID) { FSID.AddPointer(ID); } |
135 | }; |
136 | |
137 | } // namespace detail |
138 | |
139 | /// The name of a declaration. In the common case, this just stores |
140 | /// an IdentifierInfo pointer to a normal name. However, it also provides |
141 | /// encodings for Objective-C selectors (optimizing zero- and one-argument |
142 | /// selectors, which make up 78% percent of all selectors in Cocoa.h), |
143 | /// special C++ names for constructors, destructors, and conversion functions, |
144 | /// and C++ overloaded operators. |
145 | class DeclarationName { |
146 | friend class DeclarationNameTable; |
147 | friend class NamedDecl; |
148 | |
149 | /// StoredNameKind represent the kind of name that is actually stored in the |
150 | /// upper bits of the Ptr field. This is only used internally. |
151 | /// |
152 | /// NameKind, StoredNameKind, and DeclarationNameExtra::ExtraKind |
153 | /// must satisfy the following properties. These properties enable |
154 | /// efficient conversion between the various kinds. |
155 | /// |
156 | /// * The first seven enumerators of StoredNameKind must have the same |
157 | /// numerical value as the first seven enumerators of NameKind. |
158 | /// This enable efficient conversion between the two enumerations |
159 | /// in the usual case. |
160 | /// |
161 | /// * The enumerations values of DeclarationNameExtra::ExtraKind must start |
162 | /// at zero, and correspond to the numerical value of the first non-inline |
163 | /// enumeration values of NameKind minus an offset. This makes conversion |
164 | /// between DeclarationNameExtra::ExtraKind and NameKind possible with |
165 | /// a single addition/substraction. |
166 | /// |
167 | /// * The enumeration values of Selector::IdentifierInfoFlag must correspond |
168 | /// to the relevant enumeration values of StoredNameKind. |
169 | /// More specifically: |
170 | /// * ZeroArg == StoredObjCZeroArgSelector, |
171 | /// * OneArg == StoredObjCOneArgSelector, |
172 | /// * MultiArg == StoredDeclarationNameExtra |
173 | /// |
174 | /// * PtrMask must mask the low 3 bits of Ptr. |
175 | enum StoredNameKind { |
176 | StoredIdentifier = 0, |
177 | StoredObjCZeroArgSelector = Selector::ZeroArg, |
178 | StoredObjCOneArgSelector = Selector::OneArg, |
179 | StoredCXXConstructorName = 3, |
180 | StoredCXXDestructorName = 4, |
181 | StoredCXXConversionFunctionName = 5, |
182 | StoredCXXOperatorName = 6, |
183 | StoredDeclarationNameExtra = Selector::MultiArg, |
184 | PtrMask = 7, |
185 | UncommonNameKindOffset = 8 |
186 | }; |
187 | |
188 | static_assert(alignof(IdentifierInfo) >= 8 && |
189 | alignof(detail::DeclarationNameExtra) >= 8 && |
190 | alignof(detail::CXXSpecialNameExtra) >= 8 && |
191 | alignof(detail::CXXOperatorIdName) >= 8 && |
192 | alignof(detail::CXXDeductionGuideNameExtra) >= 8 && |
193 | alignof(detail::CXXLiteralOperatorIdName) >= 8, |
194 | "The various classes that DeclarationName::Ptr can point to" |
195 | " must be at least aligned to 8 bytes!"); |
196 | |
197 | public: |
198 | /// The kind of the name stored in this DeclarationName. |
199 | /// The first 7 enumeration values are stored inline and correspond |
200 | /// to frequently used kinds. The rest is stored in DeclarationNameExtra |
201 | /// and correspond to infrequently used kinds. |
202 | enum NameKind { |
203 | Identifier = StoredIdentifier, |
204 | ObjCZeroArgSelector = StoredObjCZeroArgSelector, |
205 | ObjCOneArgSelector = StoredObjCOneArgSelector, |
206 | CXXConstructorName = StoredCXXConstructorName, |
207 | CXXDestructorName = StoredCXXDestructorName, |
208 | CXXConversionFunctionName = StoredCXXConversionFunctionName, |
209 | CXXOperatorName = StoredCXXOperatorName, |
210 | CXXDeductionGuideName = UncommonNameKindOffset + |
211 | detail::DeclarationNameExtra::CXXDeductionGuideName, |
212 | CXXLiteralOperatorName = |
213 | UncommonNameKindOffset + |
214 | detail::DeclarationNameExtra::CXXLiteralOperatorName, |
215 | CXXUsingDirective = UncommonNameKindOffset + |
216 | detail::DeclarationNameExtra::CXXUsingDirective, |
217 | ObjCMultiArgSelector = UncommonNameKindOffset + |
218 | detail::DeclarationNameExtra::ObjCMultiArgSelector |
219 | }; |
220 | |
221 | private: |
222 | /// The lowest three bits of Ptr are used to express what kind of name |
223 | /// we're actually storing, using the values of StoredNameKind. Depending |
224 | /// on the kind of name this is, the upper bits of Ptr may have one |
225 | /// of several different meanings: |
226 | /// |
227 | /// StoredIdentifier - The name is a normal identifier, and Ptr is |
228 | /// a normal IdentifierInfo pointer. |
229 | /// |
230 | /// StoredObjCZeroArgSelector - The name is an Objective-C |
231 | /// selector with zero arguments, and Ptr is an IdentifierInfo |
232 | /// pointer pointing to the selector name. |
233 | /// |
234 | /// StoredObjCOneArgSelector - The name is an Objective-C selector |
235 | /// with one argument, and Ptr is an IdentifierInfo pointer |
236 | /// pointing to the selector name. |
237 | /// |
238 | /// StoredCXXConstructorName - The name of a C++ constructor, |
239 | /// Ptr points to a CXXSpecialNameExtra. |
240 | /// |
241 | /// StoredCXXDestructorName - The name of a C++ destructor, |
242 | /// Ptr points to a CXXSpecialNameExtra. |
243 | /// |
244 | /// StoredCXXConversionFunctionName - The name of a C++ conversion function, |
245 | /// Ptr points to a CXXSpecialNameExtra. |
246 | /// |
247 | /// StoredCXXOperatorName - The name of an overloaded C++ operator, |
248 | /// Ptr points to a CXXOperatorIdName. |
249 | /// |
250 | /// StoredDeclarationNameExtra - Ptr is actually a pointer to a |
251 | /// DeclarationNameExtra structure, whose first value will tell us |
252 | /// whether this is an Objective-C selector, C++ deduction guide, |
253 | /// C++ literal operator, or C++ using directive. |
254 | uintptr_t Ptr = 0; |
255 | |
256 | StoredNameKind getStoredNameKind() const { |
257 | return static_cast<StoredNameKind>(Ptr & PtrMask); |
258 | } |
259 | |
260 | void *getPtr() const { return reinterpret_cast<void *>(Ptr & ~PtrMask); } |
261 | |
262 | void setPtrAndKind(const void *P, StoredNameKind Kind) { |
263 | uintptr_t PAsInteger = reinterpret_cast<uintptr_t>(P); |
264 | assert((Kind & ~PtrMask) == 0 &&(static_cast <bool> ((Kind & ~PtrMask) == 0 && "Invalid StoredNameKind in setPtrAndKind!") ? void (0) : __assert_fail ("(Kind & ~PtrMask) == 0 && \"Invalid StoredNameKind in setPtrAndKind!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/include/clang/AST/DeclarationName.h" , 265, __extension__ __PRETTY_FUNCTION__)) |
265 | "Invalid StoredNameKind in setPtrAndKind!")(static_cast <bool> ((Kind & ~PtrMask) == 0 && "Invalid StoredNameKind in setPtrAndKind!") ? void (0) : __assert_fail ("(Kind & ~PtrMask) == 0 && \"Invalid StoredNameKind in setPtrAndKind!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/include/clang/AST/DeclarationName.h" , 265, __extension__ __PRETTY_FUNCTION__)); |
266 | assert((PAsInteger & PtrMask) == 0 &&(static_cast <bool> ((PAsInteger & PtrMask) == 0 && "Improperly aligned pointer in setPtrAndKind!") ? void (0) : __assert_fail ("(PAsInteger & PtrMask) == 0 && \"Improperly aligned pointer in setPtrAndKind!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/include/clang/AST/DeclarationName.h" , 267, __extension__ __PRETTY_FUNCTION__)) |
267 | "Improperly aligned pointer in setPtrAndKind!")(static_cast <bool> ((PAsInteger & PtrMask) == 0 && "Improperly aligned pointer in setPtrAndKind!") ? void (0) : __assert_fail ("(PAsInteger & PtrMask) == 0 && \"Improperly aligned pointer in setPtrAndKind!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/include/clang/AST/DeclarationName.h" , 267, __extension__ __PRETTY_FUNCTION__)); |
268 | Ptr = PAsInteger | Kind; |
269 | } |
270 | |
271 | /// Construct a declaration name from a DeclarationNameExtra. |
272 | DeclarationName(detail::DeclarationNameExtra *Name) { |
273 | setPtrAndKind(Name, StoredDeclarationNameExtra); |
274 | } |
275 | |
276 | /// Construct a declaration name from a CXXSpecialNameExtra. |
277 | DeclarationName(detail::CXXSpecialNameExtra *Name, |
278 | StoredNameKind StoredKind) { |
279 | assert((StoredKind == StoredCXXConstructorName ||(static_cast <bool> ((StoredKind == StoredCXXConstructorName || StoredKind == StoredCXXDestructorName || StoredKind == StoredCXXConversionFunctionName ) && "Invalid StoredNameKind when constructing a DeclarationName" " from a CXXSpecialNameExtra!") ? void (0) : __assert_fail ( "(StoredKind == StoredCXXConstructorName || StoredKind == StoredCXXDestructorName || StoredKind == StoredCXXConversionFunctionName) && \"Invalid StoredNameKind when constructing a DeclarationName\" \" from a CXXSpecialNameExtra!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/include/clang/AST/DeclarationName.h" , 283, __extension__ __PRETTY_FUNCTION__)) |
280 | StoredKind == StoredCXXDestructorName ||(static_cast <bool> ((StoredKind == StoredCXXConstructorName || StoredKind == StoredCXXDestructorName || StoredKind == StoredCXXConversionFunctionName ) && "Invalid StoredNameKind when constructing a DeclarationName" " from a CXXSpecialNameExtra!") ? void (0) : __assert_fail ( "(StoredKind == StoredCXXConstructorName || StoredKind == StoredCXXDestructorName || StoredKind == StoredCXXConversionFunctionName) && \"Invalid StoredNameKind when constructing a DeclarationName\" \" from a CXXSpecialNameExtra!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/include/clang/AST/DeclarationName.h" , 283, __extension__ __PRETTY_FUNCTION__)) |
281 | StoredKind == StoredCXXConversionFunctionName) &&(static_cast <bool> ((StoredKind == StoredCXXConstructorName || StoredKind == StoredCXXDestructorName || StoredKind == StoredCXXConversionFunctionName ) && "Invalid StoredNameKind when constructing a DeclarationName" " from a CXXSpecialNameExtra!") ? void (0) : __assert_fail ( "(StoredKind == StoredCXXConstructorName || StoredKind == StoredCXXDestructorName || StoredKind == StoredCXXConversionFunctionName) && \"Invalid StoredNameKind when constructing a DeclarationName\" \" from a CXXSpecialNameExtra!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/include/clang/AST/DeclarationName.h" , 283, __extension__ __PRETTY_FUNCTION__)) |
282 | "Invalid StoredNameKind when constructing a DeclarationName"(static_cast <bool> ((StoredKind == StoredCXXConstructorName || StoredKind == StoredCXXDestructorName || StoredKind == StoredCXXConversionFunctionName ) && "Invalid StoredNameKind when constructing a DeclarationName" " from a CXXSpecialNameExtra!") ? void (0) : __assert_fail ( "(StoredKind == StoredCXXConstructorName || StoredKind == StoredCXXDestructorName || StoredKind == StoredCXXConversionFunctionName) && \"Invalid StoredNameKind when constructing a DeclarationName\" \" from a CXXSpecialNameExtra!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/include/clang/AST/DeclarationName.h" , 283, __extension__ __PRETTY_FUNCTION__)) |
283 | " from a CXXSpecialNameExtra!")(static_cast <bool> ((StoredKind == StoredCXXConstructorName || StoredKind == StoredCXXDestructorName || StoredKind == StoredCXXConversionFunctionName ) && "Invalid StoredNameKind when constructing a DeclarationName" " from a CXXSpecialNameExtra!") ? void (0) : __assert_fail ( "(StoredKind == StoredCXXConstructorName || StoredKind == StoredCXXDestructorName || StoredKind == StoredCXXConversionFunctionName) && \"Invalid StoredNameKind when constructing a DeclarationName\" \" from a CXXSpecialNameExtra!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/include/clang/AST/DeclarationName.h" , 283, __extension__ __PRETTY_FUNCTION__)); |
284 | setPtrAndKind(Name, StoredKind); |
285 | } |
286 | |
287 | /// Construct a DeclarationName from a CXXOperatorIdName. |
288 | DeclarationName(detail::CXXOperatorIdName *Name) { |
289 | setPtrAndKind(Name, StoredCXXOperatorName); |
290 | } |
291 | |
292 | /// Assert that the stored pointer points to an IdentifierInfo and return it. |
293 | IdentifierInfo *castAsIdentifierInfo() const { |
294 | assert((getStoredNameKind() == StoredIdentifier) &&(static_cast <bool> ((getStoredNameKind() == StoredIdentifier ) && "DeclarationName does not store an IdentifierInfo!" ) ? void (0) : __assert_fail ("(getStoredNameKind() == StoredIdentifier) && \"DeclarationName does not store an IdentifierInfo!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/include/clang/AST/DeclarationName.h" , 295, __extension__ __PRETTY_FUNCTION__)) |
295 | "DeclarationName does not store an IdentifierInfo!")(static_cast <bool> ((getStoredNameKind() == StoredIdentifier ) && "DeclarationName does not store an IdentifierInfo!" ) ? void (0) : __assert_fail ("(getStoredNameKind() == StoredIdentifier) && \"DeclarationName does not store an IdentifierInfo!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/include/clang/AST/DeclarationName.h" , 295, __extension__ __PRETTY_FUNCTION__)); |
296 | return static_cast<IdentifierInfo *>(getPtr()); |
297 | } |
298 | |
299 | /// Assert that the stored pointer points to a DeclarationNameExtra |
300 | /// and return it. |
301 | detail::DeclarationNameExtra *castAsExtra() const { |
302 | assert((getStoredNameKind() == StoredDeclarationNameExtra) &&(static_cast <bool> ((getStoredNameKind() == StoredDeclarationNameExtra ) && "DeclarationName does not store an Extra structure!" ) ? void (0) : __assert_fail ("(getStoredNameKind() == StoredDeclarationNameExtra) && \"DeclarationName does not store an Extra structure!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/include/clang/AST/DeclarationName.h" , 303, __extension__ __PRETTY_FUNCTION__)) |
303 | "DeclarationName does not store an Extra structure!")(static_cast <bool> ((getStoredNameKind() == StoredDeclarationNameExtra ) && "DeclarationName does not store an Extra structure!" ) ? void (0) : __assert_fail ("(getStoredNameKind() == StoredDeclarationNameExtra) && \"DeclarationName does not store an Extra structure!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/include/clang/AST/DeclarationName.h" , 303, __extension__ __PRETTY_FUNCTION__)); |
304 | return static_cast<detail::DeclarationNameExtra *>(getPtr()); |
305 | } |
306 | |
307 | /// Assert that the stored pointer points to a CXXSpecialNameExtra |
308 | /// and return it. |
309 | detail::CXXSpecialNameExtra *castAsCXXSpecialNameExtra() const { |
310 | assert((getStoredNameKind() == StoredCXXConstructorName ||(static_cast <bool> ((getStoredNameKind() == StoredCXXConstructorName || getStoredNameKind() == StoredCXXDestructorName || getStoredNameKind () == StoredCXXConversionFunctionName) && "DeclarationName does not store a CXXSpecialNameExtra!" ) ? void (0) : __assert_fail ("(getStoredNameKind() == StoredCXXConstructorName || getStoredNameKind() == StoredCXXDestructorName || getStoredNameKind() == StoredCXXConversionFunctionName) && \"DeclarationName does not store a CXXSpecialNameExtra!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/include/clang/AST/DeclarationName.h" , 313, __extension__ __PRETTY_FUNCTION__)) |
311 | getStoredNameKind() == StoredCXXDestructorName ||(static_cast <bool> ((getStoredNameKind() == StoredCXXConstructorName || getStoredNameKind() == StoredCXXDestructorName || getStoredNameKind () == StoredCXXConversionFunctionName) && "DeclarationName does not store a CXXSpecialNameExtra!" ) ? void (0) : __assert_fail ("(getStoredNameKind() == StoredCXXConstructorName || getStoredNameKind() == StoredCXXDestructorName || getStoredNameKind() == StoredCXXConversionFunctionName) && \"DeclarationName does not store a CXXSpecialNameExtra!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/include/clang/AST/DeclarationName.h" , 313, __extension__ __PRETTY_FUNCTION__)) |
312 | getStoredNameKind() == StoredCXXConversionFunctionName) &&(static_cast <bool> ((getStoredNameKind() == StoredCXXConstructorName || getStoredNameKind() == StoredCXXDestructorName || getStoredNameKind () == StoredCXXConversionFunctionName) && "DeclarationName does not store a CXXSpecialNameExtra!" ) ? void (0) : __assert_fail ("(getStoredNameKind() == StoredCXXConstructorName || getStoredNameKind() == StoredCXXDestructorName || getStoredNameKind() == StoredCXXConversionFunctionName) && \"DeclarationName does not store a CXXSpecialNameExtra!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/include/clang/AST/DeclarationName.h" , 313, __extension__ __PRETTY_FUNCTION__)) |
313 | "DeclarationName does not store a CXXSpecialNameExtra!")(static_cast <bool> ((getStoredNameKind() == StoredCXXConstructorName || getStoredNameKind() == StoredCXXDestructorName || getStoredNameKind () == StoredCXXConversionFunctionName) && "DeclarationName does not store a CXXSpecialNameExtra!" ) ? void (0) : __assert_fail ("(getStoredNameKind() == StoredCXXConstructorName || getStoredNameKind() == StoredCXXDestructorName || getStoredNameKind() == StoredCXXConversionFunctionName) && \"DeclarationName does not store a CXXSpecialNameExtra!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/include/clang/AST/DeclarationName.h" , 313, __extension__ __PRETTY_FUNCTION__)); |
314 | return static_cast<detail::CXXSpecialNameExtra *>(getPtr()); |
315 | } |
316 | |
317 | /// Assert that the stored pointer points to a CXXOperatorIdName |
318 | /// and return it. |
319 | detail::CXXOperatorIdName *castAsCXXOperatorIdName() const { |
320 | assert((getStoredNameKind() == StoredCXXOperatorName) &&(static_cast <bool> ((getStoredNameKind() == StoredCXXOperatorName ) && "DeclarationName does not store a CXXOperatorIdName!" ) ? void (0) : __assert_fail ("(getStoredNameKind() == StoredCXXOperatorName) && \"DeclarationName does not store a CXXOperatorIdName!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/include/clang/AST/DeclarationName.h" , 321, __extension__ __PRETTY_FUNCTION__)) |
321 | "DeclarationName does not store a CXXOperatorIdName!")(static_cast <bool> ((getStoredNameKind() == StoredCXXOperatorName ) && "DeclarationName does not store a CXXOperatorIdName!" ) ? void (0) : __assert_fail ("(getStoredNameKind() == StoredCXXOperatorName) && \"DeclarationName does not store a CXXOperatorIdName!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/include/clang/AST/DeclarationName.h" , 321, __extension__ __PRETTY_FUNCTION__)); |
322 | return static_cast<detail::CXXOperatorIdName *>(getPtr()); |
323 | } |
324 | |
325 | /// Assert that the stored pointer points to a CXXDeductionGuideNameExtra |
326 | /// and return it. |
327 | detail::CXXDeductionGuideNameExtra *castAsCXXDeductionGuideNameExtra() const { |
328 | assert(getNameKind() == CXXDeductionGuideName &&(static_cast <bool> (getNameKind() == CXXDeductionGuideName && "DeclarationName does not store a CXXDeductionGuideNameExtra!" ) ? void (0) : __assert_fail ("getNameKind() == CXXDeductionGuideName && \"DeclarationName does not store a CXXDeductionGuideNameExtra!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/include/clang/AST/DeclarationName.h" , 329, __extension__ __PRETTY_FUNCTION__)) |
329 | "DeclarationName does not store a CXXDeductionGuideNameExtra!")(static_cast <bool> (getNameKind() == CXXDeductionGuideName && "DeclarationName does not store a CXXDeductionGuideNameExtra!" ) ? void (0) : __assert_fail ("getNameKind() == CXXDeductionGuideName && \"DeclarationName does not store a CXXDeductionGuideNameExtra!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/include/clang/AST/DeclarationName.h" , 329, __extension__ __PRETTY_FUNCTION__)); |
330 | return static_cast<detail::CXXDeductionGuideNameExtra *>(getPtr()); |
331 | } |
332 | |
333 | /// Assert that the stored pointer points to a CXXLiteralOperatorIdName |
334 | /// and return it. |
335 | detail::CXXLiteralOperatorIdName *castAsCXXLiteralOperatorIdName() const { |
336 | assert(getNameKind() == CXXLiteralOperatorName &&(static_cast <bool> (getNameKind() == CXXLiteralOperatorName && "DeclarationName does not store a CXXLiteralOperatorIdName!" ) ? void (0) : __assert_fail ("getNameKind() == CXXLiteralOperatorName && \"DeclarationName does not store a CXXLiteralOperatorIdName!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/include/clang/AST/DeclarationName.h" , 337, __extension__ __PRETTY_FUNCTION__)) |
337 | "DeclarationName does not store a CXXLiteralOperatorIdName!")(static_cast <bool> (getNameKind() == CXXLiteralOperatorName && "DeclarationName does not store a CXXLiteralOperatorIdName!" ) ? void (0) : __assert_fail ("getNameKind() == CXXLiteralOperatorName && \"DeclarationName does not store a CXXLiteralOperatorIdName!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/include/clang/AST/DeclarationName.h" , 337, __extension__ __PRETTY_FUNCTION__)); |
338 | return static_cast<detail::CXXLiteralOperatorIdName *>(getPtr()); |
339 | } |
340 | |
341 | /// Get and set the FETokenInfo in the less common cases where the |
342 | /// declaration name do not point to an identifier. |
343 | void *getFETokenInfoSlow() const; |
344 | void setFETokenInfoSlow(void *T); |
345 | |
346 | public: |
347 | /// Construct an empty declaration name. |
348 | DeclarationName() { setPtrAndKind(nullptr, StoredIdentifier); } |
349 | |
350 | /// Construct a declaration name from an IdentifierInfo *. |
351 | DeclarationName(const IdentifierInfo *II) { |
352 | setPtrAndKind(II, StoredIdentifier); |
353 | } |
354 | |
355 | /// Construct a declaration name from an Objective-C selector. |
356 | DeclarationName(Selector Sel) : Ptr(Sel.InfoPtr) {} |
357 | |
358 | /// Returns the name for all C++ using-directives. |
359 | static DeclarationName getUsingDirectiveName() { |
360 | // Single instance of DeclarationNameExtra for using-directive |
361 | static detail::DeclarationNameExtra UDirExtra( |
362 | detail::DeclarationNameExtra::CXXUsingDirective); |
363 | return DeclarationName(&UDirExtra); |
364 | } |
365 | |
366 | /// Evaluates true when this declaration name is non-empty. |
367 | explicit operator bool() const { |
368 | return getPtr() || (getStoredNameKind() != StoredIdentifier); |
369 | } |
370 | |
371 | /// Evaluates true when this declaration name is empty. |
372 | bool isEmpty() const { return !*this; } |
373 | |
374 | /// Predicate functions for querying what type of name this is. |
375 | bool isIdentifier() const { return getStoredNameKind() == StoredIdentifier; } |
376 | bool isObjCZeroArgSelector() const { |
377 | return getStoredNameKind() == StoredObjCZeroArgSelector; |
378 | } |
379 | bool isObjCOneArgSelector() const { |
380 | return getStoredNameKind() == StoredObjCOneArgSelector; |
381 | } |
382 | |
383 | /// Determine what kind of name this is. |
384 | NameKind getNameKind() const { |
385 | // We rely on the fact that the first 7 NameKind and StoredNameKind |
386 | // have the same numerical value. This makes the usual case efficient. |
387 | StoredNameKind StoredKind = getStoredNameKind(); |
388 | if (StoredKind != StoredDeclarationNameExtra) |
389 | return static_cast<NameKind>(StoredKind); |
390 | // We have to consult DeclarationNameExtra. We rely on the fact that the |
391 | // enumeration values of ExtraKind correspond to the enumeration values of |
392 | // NameKind minus an offset of UncommonNameKindOffset. |
393 | unsigned ExtraKind = castAsExtra()->getKind(); |
394 | return static_cast<NameKind>(UncommonNameKindOffset + ExtraKind); |
395 | } |
396 | |
397 | /// Determines whether the name itself is dependent, e.g., because it |
398 | /// involves a C++ type that is itself dependent. |
399 | /// |
400 | /// Note that this does not capture all of the notions of "dependent name", |
401 | /// because an identifier can be a dependent name if it is used as the |
402 | /// callee in a call expression with dependent arguments. |
403 | bool isDependentName() const; |
404 | |
405 | /// Retrieve the human-readable string for this name. |
406 | std::string getAsString() const; |
407 | |
408 | /// Retrieve the IdentifierInfo * stored in this declaration name, |
409 | /// or null if this declaration name isn't a simple identifier. |
410 | IdentifierInfo *getAsIdentifierInfo() const { |
411 | if (isIdentifier()) |
412 | return castAsIdentifierInfo(); |
413 | return nullptr; |
414 | } |
415 | |
416 | /// Get the representation of this declaration name as an opaque integer. |
417 | uintptr_t getAsOpaqueInteger() const { return Ptr; } |
418 | |
419 | /// Get the representation of this declaration name as an opaque pointer. |
420 | void *getAsOpaquePtr() const { return reinterpret_cast<void *>(Ptr); } |
421 | |
422 | /// Get a declaration name from an opaque pointer returned by getAsOpaquePtr. |
423 | static DeclarationName getFromOpaquePtr(void *P) { |
424 | DeclarationName N; |
425 | N.Ptr = reinterpret_cast<uintptr_t>(P); |
426 | return N; |
427 | } |
428 | |
429 | /// Get a declaration name from an opaque integer |
430 | /// returned by getAsOpaqueInteger. |
431 | static DeclarationName getFromOpaqueInteger(uintptr_t P) { |
432 | DeclarationName N; |
433 | N.Ptr = P; |
434 | return N; |
435 | } |
436 | |
437 | /// If this name is one of the C++ names (of a constructor, destructor, |
438 | /// or conversion function), return the type associated with that name. |
439 | QualType getCXXNameType() const { |
440 | if (getStoredNameKind() == StoredCXXConstructorName || |
441 | getStoredNameKind() == StoredCXXDestructorName || |
442 | getStoredNameKind() == StoredCXXConversionFunctionName) { |
443 | assert(getPtr() && "getCXXNameType on a null DeclarationName!")(static_cast <bool> (getPtr() && "getCXXNameType on a null DeclarationName!" ) ? void (0) : __assert_fail ("getPtr() && \"getCXXNameType on a null DeclarationName!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/include/clang/AST/DeclarationName.h" , 443, __extension__ __PRETTY_FUNCTION__)); |
444 | return castAsCXXSpecialNameExtra()->Type; |
445 | } |
446 | return QualType(); |
447 | } |
448 | |
449 | /// If this name is the name of a C++ deduction guide, return the |
450 | /// template associated with that name. |
451 | TemplateDecl *getCXXDeductionGuideTemplate() const { |
452 | if (getNameKind() == CXXDeductionGuideName) { |
453 | assert(getPtr() &&(static_cast <bool> (getPtr() && "getCXXDeductionGuideTemplate on a null DeclarationName!" ) ? void (0) : __assert_fail ("getPtr() && \"getCXXDeductionGuideTemplate on a null DeclarationName!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/include/clang/AST/DeclarationName.h" , 454, __extension__ __PRETTY_FUNCTION__)) |
454 | "getCXXDeductionGuideTemplate on a null DeclarationName!")(static_cast <bool> (getPtr() && "getCXXDeductionGuideTemplate on a null DeclarationName!" ) ? void (0) : __assert_fail ("getPtr() && \"getCXXDeductionGuideTemplate on a null DeclarationName!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/include/clang/AST/DeclarationName.h" , 454, __extension__ __PRETTY_FUNCTION__)); |
455 | return castAsCXXDeductionGuideNameExtra()->Template; |
456 | } |
457 | return nullptr; |
458 | } |
459 | |
460 | /// If this name is the name of an overloadable operator in C++ |
461 | /// (e.g., @c operator+), retrieve the kind of overloaded operator. |
462 | OverloadedOperatorKind getCXXOverloadedOperator() const { |
463 | if (getStoredNameKind() == StoredCXXOperatorName) { |
464 | assert(getPtr() && "getCXXOverloadedOperator on a null DeclarationName!")(static_cast <bool> (getPtr() && "getCXXOverloadedOperator on a null DeclarationName!" ) ? void (0) : __assert_fail ("getPtr() && \"getCXXOverloadedOperator on a null DeclarationName!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/include/clang/AST/DeclarationName.h" , 464, __extension__ __PRETTY_FUNCTION__)); |
465 | return castAsCXXOperatorIdName()->Kind; |
466 | } |
467 | return OO_None; |
468 | } |
469 | |
470 | /// If this name is the name of a literal operator, |
471 | /// retrieve the identifier associated with it. |
472 | IdentifierInfo *getCXXLiteralIdentifier() const { |
473 | if (getNameKind() == CXXLiteralOperatorName) { |
474 | assert(getPtr() && "getCXXLiteralIdentifier on a null DeclarationName!")(static_cast <bool> (getPtr() && "getCXXLiteralIdentifier on a null DeclarationName!" ) ? void (0) : __assert_fail ("getPtr() && \"getCXXLiteralIdentifier on a null DeclarationName!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/include/clang/AST/DeclarationName.h" , 474, __extension__ __PRETTY_FUNCTION__)); |
475 | return castAsCXXLiteralOperatorIdName()->ID; |
476 | } |
477 | return nullptr; |
478 | } |
479 | |
480 | /// Get the Objective-C selector stored in this declaration name. |
481 | Selector getObjCSelector() const { |
482 | assert((getNameKind() == ObjCZeroArgSelector ||(static_cast <bool> ((getNameKind() == ObjCZeroArgSelector || getNameKind() == ObjCOneArgSelector || getNameKind() == ObjCMultiArgSelector || !getPtr()) && "Not a selector!") ? void (0) : __assert_fail ("(getNameKind() == ObjCZeroArgSelector || getNameKind() == ObjCOneArgSelector || getNameKind() == ObjCMultiArgSelector || !getPtr()) && \"Not a selector!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/include/clang/AST/DeclarationName.h" , 485, __extension__ __PRETTY_FUNCTION__)) |
483 | getNameKind() == ObjCOneArgSelector ||(static_cast <bool> ((getNameKind() == ObjCZeroArgSelector || getNameKind() == ObjCOneArgSelector || getNameKind() == ObjCMultiArgSelector || !getPtr()) && "Not a selector!") ? void (0) : __assert_fail ("(getNameKind() == ObjCZeroArgSelector || getNameKind() == ObjCOneArgSelector || getNameKind() == ObjCMultiArgSelector || !getPtr()) && \"Not a selector!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/include/clang/AST/DeclarationName.h" , 485, __extension__ __PRETTY_FUNCTION__)) |
484 | getNameKind() == ObjCMultiArgSelector || !getPtr()) &&(static_cast <bool> ((getNameKind() == ObjCZeroArgSelector || getNameKind() == ObjCOneArgSelector || getNameKind() == ObjCMultiArgSelector || !getPtr()) && "Not a selector!") ? void (0) : __assert_fail ("(getNameKind() == ObjCZeroArgSelector || getNameKind() == ObjCOneArgSelector || getNameKind() == ObjCMultiArgSelector || !getPtr()) && \"Not a selector!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/include/clang/AST/DeclarationName.h" , 485, __extension__ __PRETTY_FUNCTION__)) |
485 | "Not a selector!")(static_cast <bool> ((getNameKind() == ObjCZeroArgSelector || getNameKind() == ObjCOneArgSelector || getNameKind() == ObjCMultiArgSelector || !getPtr()) && "Not a selector!") ? void (0) : __assert_fail ("(getNameKind() == ObjCZeroArgSelector || getNameKind() == ObjCOneArgSelector || getNameKind() == ObjCMultiArgSelector || !getPtr()) && \"Not a selector!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/include/clang/AST/DeclarationName.h" , 485, __extension__ __PRETTY_FUNCTION__)); |
486 | return Selector(Ptr); |
487 | } |
488 | |
489 | /// Get and set FETokenInfo. The language front-end is allowed to associate |
490 | /// arbitrary metadata with some kinds of declaration names, including normal |
491 | /// identifiers and C++ constructors, destructors, and conversion functions. |
492 | void *getFETokenInfo() const { |
493 | assert(getPtr() && "getFETokenInfo on an empty DeclarationName!")(static_cast <bool> (getPtr() && "getFETokenInfo on an empty DeclarationName!" ) ? void (0) : __assert_fail ("getPtr() && \"getFETokenInfo on an empty DeclarationName!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/include/clang/AST/DeclarationName.h" , 493, __extension__ __PRETTY_FUNCTION__)); |
494 | if (getStoredNameKind() == StoredIdentifier) |
495 | return castAsIdentifierInfo()->getFETokenInfo(); |
496 | return getFETokenInfoSlow(); |
497 | } |
498 | |
499 | void setFETokenInfo(void *T) { |
500 | assert(getPtr() && "setFETokenInfo on an empty DeclarationName!")(static_cast <bool> (getPtr() && "setFETokenInfo on an empty DeclarationName!" ) ? void (0) : __assert_fail ("getPtr() && \"setFETokenInfo on an empty DeclarationName!\"" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/include/clang/AST/DeclarationName.h" , 500, __extension__ __PRETTY_FUNCTION__)); |
501 | if (getStoredNameKind() == StoredIdentifier) |
502 | castAsIdentifierInfo()->setFETokenInfo(T); |
503 | else |
504 | setFETokenInfoSlow(T); |
505 | } |
506 | |
507 | /// Determine whether the specified names are identical. |
508 | friend bool operator==(DeclarationName LHS, DeclarationName RHS) { |
509 | return LHS.Ptr == RHS.Ptr; |
510 | } |
511 | |
512 | /// Determine whether the specified names are different. |
513 | friend bool operator!=(DeclarationName LHS, DeclarationName RHS) { |
514 | return LHS.Ptr != RHS.Ptr; |
515 | } |
516 | |
517 | static DeclarationName getEmptyMarker() { |
518 | DeclarationName Name; |
519 | Name.Ptr = uintptr_t(-1); |
520 | return Name; |
521 | } |
522 | |
523 | static DeclarationName getTombstoneMarker() { |
524 | DeclarationName Name; |
525 | Name.Ptr = uintptr_t(-2); |
526 | return Name; |
527 | } |
528 | |
529 | static int compare(DeclarationName LHS, DeclarationName RHS); |
530 | |
531 | void print(raw_ostream &OS, const PrintingPolicy &Policy) const; |
532 | |
533 | void dump() const; |
534 | }; |
535 | |
536 | raw_ostream &operator<<(raw_ostream &OS, DeclarationName N); |
537 | |
538 | /// Ordering on two declaration names. If both names are identifiers, |
539 | /// this provides a lexicographical ordering. |
540 | inline bool operator<(DeclarationName LHS, DeclarationName RHS) { |
541 | return DeclarationName::compare(LHS, RHS) < 0; |
542 | } |
543 | |
544 | /// Ordering on two declaration names. If both names are identifiers, |
545 | /// this provides a lexicographical ordering. |
546 | inline bool operator>(DeclarationName LHS, DeclarationName RHS) { |
547 | return DeclarationName::compare(LHS, RHS) > 0; |
548 | } |
549 | |
550 | /// Ordering on two declaration names. If both names are identifiers, |
551 | /// this provides a lexicographical ordering. |
552 | inline bool operator<=(DeclarationName LHS, DeclarationName RHS) { |
553 | return DeclarationName::compare(LHS, RHS) <= 0; |
554 | } |
555 | |
556 | /// Ordering on two declaration names. If both names are identifiers, |
557 | /// this provides a lexicographical ordering. |
558 | inline bool operator>=(DeclarationName LHS, DeclarationName RHS) { |
559 | return DeclarationName::compare(LHS, RHS) >= 0; |
560 | } |
561 | |
562 | /// DeclarationNameTable is used to store and retrieve DeclarationName |
563 | /// instances for the various kinds of declaration names, e.g., normal |
564 | /// identifiers, C++ constructor names, etc. This class contains |
565 | /// uniqued versions of each of the C++ special names, which can be |
566 | /// retrieved using its member functions (e.g., getCXXConstructorName). |
567 | class DeclarationNameTable { |
568 | /// Used to allocate elements in the FoldingSets below. |
569 | const ASTContext &Ctx; |
570 | |
571 | /// Manage the uniqued CXXSpecialNameExtra representing C++ constructors. |
572 | /// getCXXConstructorName and getCXXSpecialName can be used to obtain |
573 | /// a DeclarationName from the corresponding type of the constructor. |
574 | llvm::FoldingSet<detail::CXXSpecialNameExtra> CXXConstructorNames; |
575 | |
576 | /// Manage the uniqued CXXSpecialNameExtra representing C++ destructors. |
577 | /// getCXXDestructorName and getCXXSpecialName can be used to obtain |
578 | /// a DeclarationName from the corresponding type of the destructor. |
579 | llvm::FoldingSet<detail::CXXSpecialNameExtra> CXXDestructorNames; |
580 | |
581 | /// Manage the uniqued CXXSpecialNameExtra representing C++ conversion |
582 | /// functions. getCXXConversionFunctionName and getCXXSpecialName can be |
583 | /// used to obtain a DeclarationName from the corresponding type of the |
584 | /// conversion function. |
585 | llvm::FoldingSet<detail::CXXSpecialNameExtra> CXXConversionFunctionNames; |
586 | |
587 | /// Manage the uniqued CXXOperatorIdName, which contain extra information |
588 | /// for the name of overloaded C++ operators. getCXXOperatorName |
589 | /// can be used to obtain a DeclarationName from the operator kind. |
590 | detail::CXXOperatorIdName CXXOperatorNames[NUM_OVERLOADED_OPERATORS]; |
591 | |
592 | /// Manage the uniqued CXXLiteralOperatorIdName, which contain extra |
593 | /// information for the name of C++ literal operators. |
594 | /// getCXXLiteralOperatorName can be used to obtain a DeclarationName |
595 | /// from the corresponding IdentifierInfo. |
596 | llvm::FoldingSet<detail::CXXLiteralOperatorIdName> CXXLiteralOperatorNames; |
597 | |
598 | /// Manage the uniqued CXXDeductionGuideNameExtra, which contain |
599 | /// extra information for the name of a C++ deduction guide. |
600 | /// getCXXDeductionGuideName can be used to obtain a DeclarationName |
601 | /// from the corresponding template declaration. |
602 | llvm::FoldingSet<detail::CXXDeductionGuideNameExtra> CXXDeductionGuideNames; |
603 | |
604 | public: |
605 | DeclarationNameTable(const ASTContext &C); |
606 | DeclarationNameTable(const DeclarationNameTable &) = delete; |
607 | DeclarationNameTable &operator=(const DeclarationNameTable &) = delete; |
608 | DeclarationNameTable(DeclarationNameTable &&) = delete; |
609 | DeclarationNameTable &operator=(DeclarationNameTable &&) = delete; |
610 | ~DeclarationNameTable() = default; |
611 | |
612 | /// Create a declaration name that is a simple identifier. |
613 | DeclarationName getIdentifier(const IdentifierInfo *ID) { |
614 | return DeclarationName(ID); |
615 | } |
616 | |
617 | /// Returns the name of a C++ constructor for the given Type. |
618 | DeclarationName getCXXConstructorName(CanQualType Ty); |
619 | |
620 | /// Returns the name of a C++ destructor for the given Type. |
621 | DeclarationName getCXXDestructorName(CanQualType Ty); |
622 | |
623 | /// Returns the name of a C++ deduction guide for the given template. |
624 | DeclarationName getCXXDeductionGuideName(TemplateDecl *TD); |
625 | |
626 | /// Returns the name of a C++ conversion function for the given Type. |
627 | DeclarationName getCXXConversionFunctionName(CanQualType Ty); |
628 | |
629 | /// Returns a declaration name for special kind of C++ name, |
630 | /// e.g., for a constructor, destructor, or conversion function. |
631 | /// Kind must be one of: |
632 | /// * DeclarationName::CXXConstructorName, |
633 | /// * DeclarationName::CXXDestructorName or |
634 | /// * DeclarationName::CXXConversionFunctionName |
635 | DeclarationName getCXXSpecialName(DeclarationName::NameKind Kind, |
636 | CanQualType Ty); |
637 | |
638 | /// Get the name of the overloadable C++ operator corresponding to Op. |
639 | DeclarationName getCXXOperatorName(OverloadedOperatorKind Op) { |
640 | return DeclarationName(&CXXOperatorNames[Op]); |
641 | } |
642 | |
643 | /// Get the name of the literal operator function with II as the identifier. |
644 | DeclarationName getCXXLiteralOperatorName(IdentifierInfo *II); |
645 | }; |
646 | |
647 | /// DeclarationNameLoc - Additional source/type location info |
648 | /// for a declaration name. Needs a DeclarationName in order |
649 | /// to be interpreted correctly. |
650 | class DeclarationNameLoc { |
651 | // The source location for identifier stored elsewhere. |
652 | // struct {} Identifier; |
653 | |
654 | // Type info for constructors, destructors and conversion functions. |
655 | // Locations (if any) for the tilde (destructor) or operator keyword |
656 | // (conversion) are stored elsewhere. |
657 | struct NT { |
658 | TypeSourceInfo *TInfo; |
659 | }; |
660 | |
661 | // The location (if any) of the operator keyword is stored elsewhere. |
662 | struct CXXOpName { |
663 | SourceLocation::UIntTy BeginOpNameLoc; |
664 | SourceLocation::UIntTy EndOpNameLoc; |
665 | }; |
666 | |
667 | // The location (if any) of the operator keyword is stored elsewhere. |
668 | struct CXXLitOpName { |
669 | SourceLocation::UIntTy OpNameLoc; |
670 | }; |
671 | |
672 | // struct {} CXXUsingDirective; |
673 | // struct {} ObjCZeroArgSelector; |
674 | // struct {} ObjCOneArgSelector; |
675 | // struct {} ObjCMultiArgSelector; |
676 | union { |
677 | struct NT NamedType; |
678 | struct CXXOpName CXXOperatorName; |
679 | struct CXXLitOpName CXXLiteralOperatorName; |
680 | }; |
681 | |
682 | void setNamedTypeLoc(TypeSourceInfo *TInfo) { NamedType.TInfo = TInfo; } |
683 | |
684 | void setCXXOperatorNameRange(SourceRange Range) { |
685 | CXXOperatorName.BeginOpNameLoc = Range.getBegin().getRawEncoding(); |
686 | CXXOperatorName.EndOpNameLoc = Range.getEnd().getRawEncoding(); |
687 | } |
688 | |
689 | void setCXXLiteralOperatorNameLoc(SourceLocation Loc) { |
690 | CXXLiteralOperatorName.OpNameLoc = Loc.getRawEncoding(); |
691 | } |
692 | |
693 | public: |
694 | DeclarationNameLoc(DeclarationName Name); |
695 | // FIXME: this should go away once all DNLocs are properly initialized. |
696 | DeclarationNameLoc() { memset((void*) this, 0, sizeof(*this)); } |
697 | |
698 | /// Returns the source type info. Assumes that the object stores location |
699 | /// information of a constructor, destructor or conversion operator. |
700 | TypeSourceInfo *getNamedTypeInfo() const { return NamedType.TInfo; } |
701 | |
702 | /// Return the beginning location of the getCXXOperatorNameRange() range. |
703 | SourceLocation getCXXOperatorNameBeginLoc() const { |
704 | return SourceLocation::getFromRawEncoding(CXXOperatorName.BeginOpNameLoc); |
705 | } |
706 | |
707 | /// Return the end location of the getCXXOperatorNameRange() range. |
708 | SourceLocation getCXXOperatorNameEndLoc() const { |
709 | return SourceLocation::getFromRawEncoding(CXXOperatorName.EndOpNameLoc); |
710 | } |
711 | |
712 | /// Return the range of the operator name (without the operator keyword). |
713 | /// Assumes that the object stores location information of a (non-literal) |
714 | /// operator. |
715 | SourceRange getCXXOperatorNameRange() const { |
716 | return SourceRange(getCXXOperatorNameBeginLoc(), |
717 | getCXXOperatorNameEndLoc()); |
718 | } |
719 | |
720 | /// Return the location of the literal operator name (without the operator |
721 | /// keyword). Assumes that the object stores location information of a literal |
722 | /// operator. |
723 | SourceLocation getCXXLiteralOperatorNameLoc() const { |
724 | return SourceLocation::getFromRawEncoding(CXXLiteralOperatorName.OpNameLoc); |
725 | } |
726 | |
727 | /// Construct location information for a constructor, destructor or conversion |
728 | /// operator. |
729 | static DeclarationNameLoc makeNamedTypeLoc(TypeSourceInfo *TInfo) { |
730 | DeclarationNameLoc DNL; |
731 | DNL.setNamedTypeLoc(TInfo); |
732 | return DNL; |
733 | } |
734 | |
735 | /// Construct location information for a non-literal C++ operator. |
736 | static DeclarationNameLoc makeCXXOperatorNameLoc(SourceLocation BeginLoc, |
737 | SourceLocation EndLoc) { |
738 | return makeCXXOperatorNameLoc(SourceRange(BeginLoc, EndLoc)); |
739 | } |
740 | |
741 | /// Construct location information for a non-literal C++ operator. |
742 | static DeclarationNameLoc makeCXXOperatorNameLoc(SourceRange Range) { |
743 | DeclarationNameLoc DNL; |
744 | DNL.setCXXOperatorNameRange(Range); |
745 | return DNL; |
746 | } |
747 | |
748 | /// Construct location information for a literal C++ operator. |
749 | static DeclarationNameLoc makeCXXLiteralOperatorNameLoc(SourceLocation Loc) { |
750 | DeclarationNameLoc DNL; |
751 | DNL.setCXXLiteralOperatorNameLoc(Loc); |
752 | return DNL; |
753 | } |
754 | }; |
755 | |
756 | /// DeclarationNameInfo - A collector data type for bundling together |
757 | /// a DeclarationName and the correspnding source/type location info. |
758 | struct DeclarationNameInfo { |
759 | private: |
760 | /// Name - The declaration name, also encoding name kind. |
761 | DeclarationName Name; |
762 | |
763 | /// Loc - The main source location for the declaration name. |
764 | SourceLocation NameLoc; |
765 | |
766 | /// Info - Further source/type location info for special kinds of names. |
767 | DeclarationNameLoc LocInfo; |
768 | |
769 | public: |
770 | // FIXME: remove it. |
771 | DeclarationNameInfo() = default; |
772 | |
773 | DeclarationNameInfo(DeclarationName Name, SourceLocation NameLoc) |
774 | : Name(Name), NameLoc(NameLoc), LocInfo(Name) {} |
775 | |
776 | DeclarationNameInfo(DeclarationName Name, SourceLocation NameLoc, |
777 | DeclarationNameLoc LocInfo) |
778 | : Name(Name), NameLoc(NameLoc), LocInfo(LocInfo) {} |
779 | |
780 | /// getName - Returns the embedded declaration name. |
781 | DeclarationName getName() const { return Name; } |
782 | |
783 | /// setName - Sets the embedded declaration name. |
784 | void setName(DeclarationName N) { Name = N; } |
785 | |
786 | /// getLoc - Returns the main location of the declaration name. |
787 | SourceLocation getLoc() const { return NameLoc; } |
788 | |
789 | /// setLoc - Sets the main location of the declaration name. |
790 | void setLoc(SourceLocation L) { NameLoc = L; } |
791 | |
792 | const DeclarationNameLoc &getInfo() const { return LocInfo; } |
793 | void setInfo(const DeclarationNameLoc &Info) { LocInfo = Info; } |
794 | |
795 | /// getNamedTypeInfo - Returns the source type info associated to |
796 | /// the name. Assumes it is a constructor, destructor or conversion. |
797 | TypeSourceInfo *getNamedTypeInfo() const { |
798 | if (Name.getNameKind() != DeclarationName::CXXConstructorName && |
799 | Name.getNameKind() != DeclarationName::CXXDestructorName && |
800 | Name.getNameKind() != DeclarationName::CXXConversionFunctionName) |
801 | return nullptr; |
802 | return LocInfo.getNamedTypeInfo(); |
803 | } |
804 | |
805 | /// setNamedTypeInfo - Sets the source type info associated to |
806 | /// the name. Assumes it is a constructor, destructor or conversion. |
807 | void setNamedTypeInfo(TypeSourceInfo *TInfo) { |
808 | assert(Name.getNameKind() == DeclarationName::CXXConstructorName ||(static_cast <bool> (Name.getNameKind() == DeclarationName ::CXXConstructorName || Name.getNameKind() == DeclarationName ::CXXDestructorName || Name.getNameKind() == DeclarationName:: CXXConversionFunctionName) ? void (0) : __assert_fail ("Name.getNameKind() == DeclarationName::CXXConstructorName || Name.getNameKind() == DeclarationName::CXXDestructorName || Name.getNameKind() == DeclarationName::CXXConversionFunctionName" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/include/clang/AST/DeclarationName.h" , 810, __extension__ __PRETTY_FUNCTION__)) |
809 | Name.getNameKind() == DeclarationName::CXXDestructorName ||(static_cast <bool> (Name.getNameKind() == DeclarationName ::CXXConstructorName || Name.getNameKind() == DeclarationName ::CXXDestructorName || Name.getNameKind() == DeclarationName:: CXXConversionFunctionName) ? void (0) : __assert_fail ("Name.getNameKind() == DeclarationName::CXXConstructorName || Name.getNameKind() == DeclarationName::CXXDestructorName || Name.getNameKind() == DeclarationName::CXXConversionFunctionName" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/include/clang/AST/DeclarationName.h" , 810, __extension__ __PRETTY_FUNCTION__)) |
810 | Name.getNameKind() == DeclarationName::CXXConversionFunctionName)(static_cast <bool> (Name.getNameKind() == DeclarationName ::CXXConstructorName || Name.getNameKind() == DeclarationName ::CXXDestructorName || Name.getNameKind() == DeclarationName:: CXXConversionFunctionName) ? void (0) : __assert_fail ("Name.getNameKind() == DeclarationName::CXXConstructorName || Name.getNameKind() == DeclarationName::CXXDestructorName || Name.getNameKind() == DeclarationName::CXXConversionFunctionName" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/include/clang/AST/DeclarationName.h" , 810, __extension__ __PRETTY_FUNCTION__)); |
811 | LocInfo = DeclarationNameLoc::makeNamedTypeLoc(TInfo); |
812 | } |
813 | |
814 | /// getCXXOperatorNameRange - Gets the range of the operator name |
815 | /// (without the operator keyword). Assumes it is a (non-literal) operator. |
816 | SourceRange getCXXOperatorNameRange() const { |
817 | if (Name.getNameKind() != DeclarationName::CXXOperatorName) |
818 | return SourceRange(); |
819 | return LocInfo.getCXXOperatorNameRange(); |
820 | } |
821 | |
822 | /// setCXXOperatorNameRange - Sets the range of the operator name |
823 | /// (without the operator keyword). Assumes it is a C++ operator. |
824 | void setCXXOperatorNameRange(SourceRange R) { |
825 | assert(Name.getNameKind() == DeclarationName::CXXOperatorName)(static_cast <bool> (Name.getNameKind() == DeclarationName ::CXXOperatorName) ? void (0) : __assert_fail ("Name.getNameKind() == DeclarationName::CXXOperatorName" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/include/clang/AST/DeclarationName.h" , 825, __extension__ __PRETTY_FUNCTION__)); |
826 | LocInfo = DeclarationNameLoc::makeCXXOperatorNameLoc(R); |
827 | } |
828 | |
829 | /// getCXXLiteralOperatorNameLoc - Returns the location of the literal |
830 | /// operator name (not the operator keyword). |
831 | /// Assumes it is a literal operator. |
832 | SourceLocation getCXXLiteralOperatorNameLoc() const { |
833 | if (Name.getNameKind() != DeclarationName::CXXLiteralOperatorName) |
834 | return SourceLocation(); |
835 | return LocInfo.getCXXLiteralOperatorNameLoc(); |
836 | } |
837 | |
838 | /// setCXXLiteralOperatorNameLoc - Sets the location of the literal |
839 | /// operator name (not the operator keyword). |
840 | /// Assumes it is a literal operator. |
841 | void setCXXLiteralOperatorNameLoc(SourceLocation Loc) { |
842 | assert(Name.getNameKind() == DeclarationName::CXXLiteralOperatorName)(static_cast <bool> (Name.getNameKind() == DeclarationName ::CXXLiteralOperatorName) ? void (0) : __assert_fail ("Name.getNameKind() == DeclarationName::CXXLiteralOperatorName" , "/build/llvm-toolchain-snapshot-14~++20210828111110+16086d47c0d0/clang/include/clang/AST/DeclarationName.h" , 842, __extension__ __PRETTY_FUNCTION__)); |
843 | LocInfo = DeclarationNameLoc::makeCXXLiteralOperatorNameLoc(Loc); |
844 | } |
845 | |
846 | /// Determine whether this name involves a template parameter. |
847 | bool isInstantiationDependent() const; |
848 | |
849 | /// Determine whether this name contains an unexpanded |
850 | /// parameter pack. |
851 | bool containsUnexpandedParameterPack() const; |
852 | |
853 | /// getAsString - Retrieve the human-readable string for this name. |
854 | std::string getAsString() const; |
855 | |
856 | /// printName - Print the human-readable name to a stream. |
857 | void printName(raw_ostream &OS, PrintingPolicy Policy) const; |
858 | |
859 | /// getBeginLoc - Retrieve the location of the first token. |
860 | SourceLocation getBeginLoc() const { return NameLoc; } |
861 | |
862 | /// getSourceRange - The range of the declaration name. |
863 | SourceRange getSourceRange() const LLVM_READONLY__attribute__((__pure__)) { |
864 | return SourceRange(getBeginLoc(), getEndLoc()); |
865 | } |
866 | |
867 | SourceLocation getEndLoc() const LLVM_READONLY__attribute__((__pure__)) { |
868 | SourceLocation EndLoc = getEndLocPrivate(); |
869 | return EndLoc.isValid() ? EndLoc : getBeginLoc(); |
870 | } |
871 | |
872 | private: |
873 | SourceLocation getEndLocPrivate() const; |
874 | }; |
875 | |
876 | /// Insertion operator for partial diagnostics. This allows binding |
877 | /// DeclarationName's into a partial diagnostic with <<. |
878 | inline const StreamingDiagnostic &operator<<(const StreamingDiagnostic &PD, |
879 | DeclarationName N) { |
880 | PD.AddTaggedVal(N.getAsOpaqueInteger(), |
881 | DiagnosticsEngine::ak_declarationname); |
882 | return PD; |
883 | } |
884 | |
885 | raw_ostream &operator<<(raw_ostream &OS, DeclarationNameInfo DNInfo); |
886 | |
887 | } // namespace clang |
888 | |
889 | namespace llvm { |
890 | |
891 | /// Define DenseMapInfo so that DeclarationNames can be used as keys |
892 | /// in DenseMap and DenseSets. |
893 | template<> |
894 | struct DenseMapInfo<clang::DeclarationName> { |
895 | static inline clang::DeclarationName getEmptyKey() { |
896 | return clang::DeclarationName::getEmptyMarker(); |
897 | } |
898 | |
899 | static inline clang::DeclarationName getTombstoneKey() { |
900 | return clang::DeclarationName::getTombstoneMarker(); |
901 | } |
902 | |
903 | static unsigned getHashValue(clang::DeclarationName Name) { |
904 | return DenseMapInfo<void*>::getHashValue(Name.getAsOpaquePtr()); |
905 | } |
906 | |
907 | static inline bool |
908 | isEqual(clang::DeclarationName LHS, clang::DeclarationName RHS) { |
909 | return LHS == RHS; |
910 | } |
911 | }; |
912 | |
913 | template <> struct PointerLikeTypeTraits<clang::DeclarationName> { |
914 | static inline void *getAsVoidPointer(clang::DeclarationName P) { |
915 | return P.getAsOpaquePtr(); |
916 | } |
917 | static inline clang::DeclarationName getFromVoidPointer(void *P) { |
918 | return clang::DeclarationName::getFromOpaquePtr(P); |
919 | } |
920 | static constexpr int NumLowBitsAvailable = 0; |
921 | }; |
922 | |
923 | } // namespace llvm |
924 | |
925 | // The definition of AssumedTemplateStorage is factored out of TemplateName to |
926 | // resolve a cyclic dependency between it and DeclarationName (via Type). |
927 | namespace clang { |
928 | |
929 | /// A structure for storing the information associated with a name that has |
930 | /// been assumed to be a template name (despite finding no TemplateDecls). |
931 | class AssumedTemplateStorage : public UncommonTemplateNameStorage { |
932 | friend class ASTContext; |
933 | |
934 | AssumedTemplateStorage(DeclarationName Name) |
935 | : UncommonTemplateNameStorage(Assumed, 0), Name(Name) {} |
936 | DeclarationName Name; |
937 | |
938 | public: |
939 | /// Get the name of the template. |
940 | DeclarationName getDeclName() const { return Name; } |
941 | }; |
942 | |
943 | } // namespace clang |
944 | |
945 | #endif // LLVM_CLANG_AST_DECLARATIONNAME_H |