File: | clang/lib/AST/ItaniumMangle.cpp |
Warning: | line 2899, column 7 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 | #include "clang/AST/Mangle.h" | |||
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/ExprConcepts.h" | |||
26 | #include "clang/AST/ExprCXX.h" | |||
27 | #include "clang/AST/ExprObjC.h" | |||
28 | #include "clang/AST/TypeLoc.h" | |||
29 | #include "clang/Basic/ABI.h" | |||
30 | #include "clang/Basic/SourceManager.h" | |||
31 | #include "clang/Basic/TargetInfo.h" | |||
32 | #include "llvm/ADT/StringExtras.h" | |||
33 | #include "llvm/Support/ErrorHandling.h" | |||
34 | #include "llvm/Support/raw_ostream.h" | |||
35 | ||||
36 | using namespace clang; | |||
37 | ||||
38 | namespace { | |||
39 | ||||
40 | /// Retrieve the declaration context that should be used when mangling the given | |||
41 | /// declaration. | |||
42 | static const DeclContext *getEffectiveDeclContext(const Decl *D) { | |||
43 | // The ABI assumes that lambda closure types that occur within | |||
44 | // default arguments live in the context of the function. However, due to | |||
45 | // the way in which Clang parses and creates function declarations, this is | |||
46 | // not the case: the lambda closure type ends up living in the context | |||
47 | // where the function itself resides, because the function declaration itself | |||
48 | // had not yet been created. Fix the context here. | |||
49 | if (const CXXRecordDecl *RD = dyn_cast<CXXRecordDecl>(D)) { | |||
50 | if (RD->isLambda()) | |||
51 | if (ParmVarDecl *ContextParam | |||
52 | = dyn_cast_or_null<ParmVarDecl>(RD->getLambdaContextDecl())) | |||
53 | return ContextParam->getDeclContext(); | |||
54 | } | |||
55 | ||||
56 | // Perform the same check for block literals. | |||
57 | if (const BlockDecl *BD = dyn_cast<BlockDecl>(D)) { | |||
58 | if (ParmVarDecl *ContextParam | |||
59 | = dyn_cast_or_null<ParmVarDecl>(BD->getBlockManglingContextDecl())) | |||
60 | return ContextParam->getDeclContext(); | |||
61 | } | |||
62 | ||||
63 | const DeclContext *DC = D->getDeclContext(); | |||
64 | if (isa<CapturedDecl>(DC) || isa<OMPDeclareReductionDecl>(DC) || | |||
65 | isa<OMPDeclareMapperDecl>(DC)) { | |||
66 | return getEffectiveDeclContext(cast<Decl>(DC)); | |||
67 | } | |||
68 | ||||
69 | if (const auto *VD = dyn_cast<VarDecl>(D)) | |||
70 | if (VD->isExternC()) | |||
71 | return VD->getASTContext().getTranslationUnitDecl(); | |||
72 | ||||
73 | if (const auto *FD = dyn_cast<FunctionDecl>(D)) | |||
74 | if (FD->isExternC()) | |||
75 | return FD->getASTContext().getTranslationUnitDecl(); | |||
76 | ||||
77 | return DC->getRedeclContext(); | |||
78 | } | |||
79 | ||||
80 | static const DeclContext *getEffectiveParentContext(const DeclContext *DC) { | |||
81 | return getEffectiveDeclContext(cast<Decl>(DC)); | |||
82 | } | |||
83 | ||||
84 | static bool isLocalContainerContext(const DeclContext *DC) { | |||
85 | return isa<FunctionDecl>(DC) || isa<ObjCMethodDecl>(DC) || isa<BlockDecl>(DC); | |||
86 | } | |||
87 | ||||
88 | static const RecordDecl *GetLocalClassDecl(const Decl *D) { | |||
89 | const DeclContext *DC = getEffectiveDeclContext(D); | |||
90 | while (!DC->isNamespace() && !DC->isTranslationUnit()) { | |||
91 | if (isLocalContainerContext(DC)) | |||
92 | return dyn_cast<RecordDecl>(D); | |||
93 | D = cast<Decl>(DC); | |||
94 | DC = getEffectiveDeclContext(D); | |||
95 | } | |||
96 | return nullptr; | |||
97 | } | |||
98 | ||||
99 | static const FunctionDecl *getStructor(const FunctionDecl *fn) { | |||
100 | if (const FunctionTemplateDecl *ftd = fn->getPrimaryTemplate()) | |||
101 | return ftd->getTemplatedDecl(); | |||
102 | ||||
103 | return fn; | |||
104 | } | |||
105 | ||||
106 | static const NamedDecl *getStructor(const NamedDecl *decl) { | |||
107 | const FunctionDecl *fn = dyn_cast_or_null<FunctionDecl>(decl); | |||
108 | return (fn ? getStructor(fn) : decl); | |||
109 | } | |||
110 | ||||
111 | static bool isLambda(const NamedDecl *ND) { | |||
112 | const CXXRecordDecl *Record = dyn_cast<CXXRecordDecl>(ND); | |||
113 | if (!Record) | |||
114 | return false; | |||
115 | ||||
116 | return Record->isLambda(); | |||
117 | } | |||
118 | ||||
119 | static const unsigned UnknownArity = ~0U; | |||
120 | ||||
121 | class ItaniumMangleContextImpl : public ItaniumMangleContext { | |||
122 | typedef std::pair<const DeclContext*, IdentifierInfo*> DiscriminatorKeyTy; | |||
123 | llvm::DenseMap<DiscriminatorKeyTy, unsigned> Discriminator; | |||
124 | llvm::DenseMap<const NamedDecl*, unsigned> Uniquifier; | |||
125 | ||||
126 | public: | |||
127 | explicit ItaniumMangleContextImpl(ASTContext &Context, | |||
128 | DiagnosticsEngine &Diags) | |||
129 | : ItaniumMangleContext(Context, Diags) {} | |||
130 | ||||
131 | /// @name Mangler Entry Points | |||
132 | /// @{ | |||
133 | ||||
134 | bool shouldMangleCXXName(const NamedDecl *D) override; | |||
135 | bool shouldMangleStringLiteral(const StringLiteral *) override { | |||
136 | return false; | |||
137 | } | |||
138 | void mangleCXXName(const NamedDecl *D, raw_ostream &) override; | |||
139 | void mangleThunk(const CXXMethodDecl *MD, const ThunkInfo &Thunk, | |||
140 | raw_ostream &) override; | |||
141 | void mangleCXXDtorThunk(const CXXDestructorDecl *DD, CXXDtorType Type, | |||
142 | const ThisAdjustment &ThisAdjustment, | |||
143 | raw_ostream &) override; | |||
144 | void mangleReferenceTemporary(const VarDecl *D, unsigned ManglingNumber, | |||
145 | raw_ostream &) override; | |||
146 | void mangleCXXVTable(const CXXRecordDecl *RD, raw_ostream &) override; | |||
147 | void mangleCXXVTT(const CXXRecordDecl *RD, raw_ostream &) override; | |||
148 | void mangleCXXCtorVTable(const CXXRecordDecl *RD, int64_t Offset, | |||
149 | const CXXRecordDecl *Type, raw_ostream &) override; | |||
150 | void mangleCXXRTTI(QualType T, raw_ostream &) override; | |||
151 | void mangleCXXRTTIName(QualType T, raw_ostream &) override; | |||
152 | void mangleTypeName(QualType T, raw_ostream &) override; | |||
153 | void mangleCXXCtor(const CXXConstructorDecl *D, CXXCtorType Type, | |||
154 | raw_ostream &) override; | |||
155 | void mangleCXXDtor(const CXXDestructorDecl *D, CXXDtorType Type, | |||
156 | raw_ostream &) override; | |||
157 | ||||
158 | void mangleCXXCtorComdat(const CXXConstructorDecl *D, raw_ostream &) override; | |||
159 | void mangleCXXDtorComdat(const CXXDestructorDecl *D, raw_ostream &) override; | |||
160 | void mangleStaticGuardVariable(const VarDecl *D, raw_ostream &) override; | |||
161 | void mangleDynamicInitializer(const VarDecl *D, raw_ostream &Out) override; | |||
162 | void mangleDynamicAtExitDestructor(const VarDecl *D, | |||
163 | raw_ostream &Out) override; | |||
164 | void mangleSEHFilterExpression(const NamedDecl *EnclosingDecl, | |||
165 | raw_ostream &Out) override; | |||
166 | void mangleSEHFinallyBlock(const NamedDecl *EnclosingDecl, | |||
167 | raw_ostream &Out) override; | |||
168 | void mangleItaniumThreadLocalInit(const VarDecl *D, raw_ostream &) override; | |||
169 | void mangleItaniumThreadLocalWrapper(const VarDecl *D, | |||
170 | raw_ostream &) override; | |||
171 | ||||
172 | void mangleStringLiteral(const StringLiteral *, raw_ostream &) override; | |||
173 | ||||
174 | void mangleLambdaSig(const CXXRecordDecl *Lambda, raw_ostream &) override; | |||
175 | ||||
176 | bool getNextDiscriminator(const NamedDecl *ND, unsigned &disc) { | |||
177 | // Lambda closure types are already numbered. | |||
178 | if (isLambda(ND)) | |||
179 | return false; | |||
180 | ||||
181 | // Anonymous tags are already numbered. | |||
182 | if (const TagDecl *Tag = dyn_cast<TagDecl>(ND)) { | |||
183 | if (Tag->getName().empty() && !Tag->getTypedefNameForAnonDecl()) | |||
184 | return false; | |||
185 | } | |||
186 | ||||
187 | // Use the canonical number for externally visible decls. | |||
188 | if (ND->isExternallyVisible()) { | |||
189 | unsigned discriminator = getASTContext().getManglingNumber(ND); | |||
190 | if (discriminator == 1) | |||
191 | return false; | |||
192 | disc = discriminator - 2; | |||
193 | return true; | |||
194 | } | |||
195 | ||||
196 | // Make up a reasonable number for internal decls. | |||
197 | unsigned &discriminator = Uniquifier[ND]; | |||
198 | if (!discriminator) { | |||
199 | const DeclContext *DC = getEffectiveDeclContext(ND); | |||
200 | discriminator = ++Discriminator[std::make_pair(DC, ND->getIdentifier())]; | |||
201 | } | |||
202 | if (discriminator == 1) | |||
203 | return false; | |||
204 | disc = discriminator-2; | |||
205 | return true; | |||
206 | } | |||
207 | /// @} | |||
208 | }; | |||
209 | ||||
210 | /// Manage the mangling of a single name. | |||
211 | class CXXNameMangler { | |||
212 | ItaniumMangleContextImpl &Context; | |||
213 | raw_ostream &Out; | |||
214 | bool NullOut = false; | |||
215 | /// In the "DisableDerivedAbiTags" mode derived ABI tags are not calculated. | |||
216 | /// This mode is used when mangler creates another mangler recursively to | |||
217 | /// calculate ABI tags for the function return value or the variable type. | |||
218 | /// Also it is required to avoid infinite recursion in some cases. | |||
219 | bool DisableDerivedAbiTags = false; | |||
220 | ||||
221 | /// The "structor" is the top-level declaration being mangled, if | |||
222 | /// that's not a template specialization; otherwise it's the pattern | |||
223 | /// for that specialization. | |||
224 | const NamedDecl *Structor; | |||
225 | unsigned StructorType; | |||
226 | ||||
227 | /// The next substitution sequence number. | |||
228 | unsigned SeqID; | |||
229 | ||||
230 | class FunctionTypeDepthState { | |||
231 | unsigned Bits; | |||
232 | ||||
233 | enum { InResultTypeMask = 1 }; | |||
234 | ||||
235 | public: | |||
236 | FunctionTypeDepthState() : Bits(0) {} | |||
237 | ||||
238 | /// The number of function types we're inside. | |||
239 | unsigned getDepth() const { | |||
240 | return Bits >> 1; | |||
241 | } | |||
242 | ||||
243 | /// True if we're in the return type of the innermost function type. | |||
244 | bool isInResultType() const { | |||
245 | return Bits & InResultTypeMask; | |||
246 | } | |||
247 | ||||
248 | FunctionTypeDepthState push() { | |||
249 | FunctionTypeDepthState tmp = *this; | |||
250 | Bits = (Bits & ~InResultTypeMask) + 2; | |||
251 | return tmp; | |||
252 | } | |||
253 | ||||
254 | void enterResultType() { | |||
255 | Bits |= InResultTypeMask; | |||
256 | } | |||
257 | ||||
258 | void leaveResultType() { | |||
259 | Bits &= ~InResultTypeMask; | |||
260 | } | |||
261 | ||||
262 | void pop(FunctionTypeDepthState saved) { | |||
263 | assert(getDepth() == saved.getDepth() + 1)((getDepth() == saved.getDepth() + 1) ? static_cast<void> (0) : __assert_fail ("getDepth() == saved.getDepth() + 1", "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 263, __PRETTY_FUNCTION__)); | |||
264 | Bits = saved.Bits; | |||
265 | } | |||
266 | ||||
267 | } FunctionTypeDepth; | |||
268 | ||||
269 | // abi_tag is a gcc attribute, taking one or more strings called "tags". | |||
270 | // The goal is to annotate against which version of a library an object was | |||
271 | // built and to be able to provide backwards compatibility ("dual abi"). | |||
272 | // For more information see docs/ItaniumMangleAbiTags.rst. | |||
273 | typedef SmallVector<StringRef, 4> AbiTagList; | |||
274 | ||||
275 | // State to gather all implicit and explicit tags used in a mangled name. | |||
276 | // Must always have an instance of this while emitting any name to keep | |||
277 | // track. | |||
278 | class AbiTagState final { | |||
279 | public: | |||
280 | explicit AbiTagState(AbiTagState *&Head) : LinkHead(Head) { | |||
281 | Parent = LinkHead; | |||
282 | LinkHead = this; | |||
283 | } | |||
284 | ||||
285 | // No copy, no move. | |||
286 | AbiTagState(const AbiTagState &) = delete; | |||
287 | AbiTagState &operator=(const AbiTagState &) = delete; | |||
288 | ||||
289 | ~AbiTagState() { pop(); } | |||
290 | ||||
291 | void write(raw_ostream &Out, const NamedDecl *ND, | |||
292 | const AbiTagList *AdditionalAbiTags) { | |||
293 | ND = cast<NamedDecl>(ND->getCanonicalDecl()); | |||
294 | if (!isa<FunctionDecl>(ND) && !isa<VarDecl>(ND)) { | |||
295 | assert(((!AdditionalAbiTags && "only function and variables need a list of additional abi tags" ) ? static_cast<void> (0) : __assert_fail ("!AdditionalAbiTags && \"only function and variables need a list of additional abi tags\"" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 297, __PRETTY_FUNCTION__)) | |||
296 | !AdditionalAbiTags &&((!AdditionalAbiTags && "only function and variables need a list of additional abi tags" ) ? static_cast<void> (0) : __assert_fail ("!AdditionalAbiTags && \"only function and variables need a list of additional abi tags\"" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 297, __PRETTY_FUNCTION__)) | |||
297 | "only function and variables need a list of additional abi tags")((!AdditionalAbiTags && "only function and variables need a list of additional abi tags" ) ? static_cast<void> (0) : __assert_fail ("!AdditionalAbiTags && \"only function and variables need a list of additional abi tags\"" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 297, __PRETTY_FUNCTION__)); | |||
298 | if (const auto *NS = dyn_cast<NamespaceDecl>(ND)) { | |||
299 | if (const auto *AbiTag = NS->getAttr<AbiTagAttr>()) { | |||
300 | UsedAbiTags.insert(UsedAbiTags.end(), AbiTag->tags().begin(), | |||
301 | AbiTag->tags().end()); | |||
302 | } | |||
303 | // Don't emit abi tags for namespaces. | |||
304 | return; | |||
305 | } | |||
306 | } | |||
307 | ||||
308 | AbiTagList TagList; | |||
309 | if (const auto *AbiTag = ND->getAttr<AbiTagAttr>()) { | |||
310 | UsedAbiTags.insert(UsedAbiTags.end(), AbiTag->tags().begin(), | |||
311 | AbiTag->tags().end()); | |||
312 | TagList.insert(TagList.end(), AbiTag->tags().begin(), | |||
313 | AbiTag->tags().end()); | |||
314 | } | |||
315 | ||||
316 | if (AdditionalAbiTags) { | |||
317 | UsedAbiTags.insert(UsedAbiTags.end(), AdditionalAbiTags->begin(), | |||
318 | AdditionalAbiTags->end()); | |||
319 | TagList.insert(TagList.end(), AdditionalAbiTags->begin(), | |||
320 | AdditionalAbiTags->end()); | |||
321 | } | |||
322 | ||||
323 | llvm::sort(TagList); | |||
324 | TagList.erase(std::unique(TagList.begin(), TagList.end()), TagList.end()); | |||
325 | ||||
326 | writeSortedUniqueAbiTags(Out, TagList); | |||
327 | } | |||
328 | ||||
329 | const AbiTagList &getUsedAbiTags() const { return UsedAbiTags; } | |||
330 | void setUsedAbiTags(const AbiTagList &AbiTags) { | |||
331 | UsedAbiTags = AbiTags; | |||
332 | } | |||
333 | ||||
334 | const AbiTagList &getEmittedAbiTags() const { | |||
335 | return EmittedAbiTags; | |||
336 | } | |||
337 | ||||
338 | const AbiTagList &getSortedUniqueUsedAbiTags() { | |||
339 | llvm::sort(UsedAbiTags); | |||
340 | UsedAbiTags.erase(std::unique(UsedAbiTags.begin(), UsedAbiTags.end()), | |||
341 | UsedAbiTags.end()); | |||
342 | return UsedAbiTags; | |||
343 | } | |||
344 | ||||
345 | private: | |||
346 | //! All abi tags used implicitly or explicitly. | |||
347 | AbiTagList UsedAbiTags; | |||
348 | //! All explicit abi tags (i.e. not from namespace). | |||
349 | AbiTagList EmittedAbiTags; | |||
350 | ||||
351 | AbiTagState *&LinkHead; | |||
352 | AbiTagState *Parent = nullptr; | |||
353 | ||||
354 | void pop() { | |||
355 | assert(LinkHead == this &&((LinkHead == this && "abi tag link head must point to us on destruction" ) ? static_cast<void> (0) : __assert_fail ("LinkHead == this && \"abi tag link head must point to us on destruction\"" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 356, __PRETTY_FUNCTION__)) | |||
356 | "abi tag link head must point to us on destruction")((LinkHead == this && "abi tag link head must point to us on destruction" ) ? static_cast<void> (0) : __assert_fail ("LinkHead == this && \"abi tag link head must point to us on destruction\"" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 356, __PRETTY_FUNCTION__)); | |||
357 | if (Parent) { | |||
358 | Parent->UsedAbiTags.insert(Parent->UsedAbiTags.end(), | |||
359 | UsedAbiTags.begin(), UsedAbiTags.end()); | |||
360 | Parent->EmittedAbiTags.insert(Parent->EmittedAbiTags.end(), | |||
361 | EmittedAbiTags.begin(), | |||
362 | EmittedAbiTags.end()); | |||
363 | } | |||
364 | LinkHead = Parent; | |||
365 | } | |||
366 | ||||
367 | void writeSortedUniqueAbiTags(raw_ostream &Out, const AbiTagList &AbiTags) { | |||
368 | for (const auto &Tag : AbiTags) { | |||
369 | EmittedAbiTags.push_back(Tag); | |||
370 | Out << "B"; | |||
371 | Out << Tag.size(); | |||
372 | Out << Tag; | |||
373 | } | |||
374 | } | |||
375 | }; | |||
376 | ||||
377 | AbiTagState *AbiTags = nullptr; | |||
378 | AbiTagState AbiTagsRoot; | |||
379 | ||||
380 | llvm::DenseMap<uintptr_t, unsigned> Substitutions; | |||
381 | llvm::DenseMap<StringRef, unsigned> ModuleSubstitutions; | |||
382 | ||||
383 | ASTContext &getASTContext() const { return Context.getASTContext(); } | |||
384 | ||||
385 | public: | |||
386 | CXXNameMangler(ItaniumMangleContextImpl &C, raw_ostream &Out_, | |||
387 | const NamedDecl *D = nullptr, bool NullOut_ = false) | |||
388 | : Context(C), Out(Out_), NullOut(NullOut_), Structor(getStructor(D)), | |||
389 | StructorType(0), SeqID(0), AbiTagsRoot(AbiTags) { | |||
390 | // These can't be mangled without a ctor type or dtor type. | |||
391 | assert(!D || (!isa<CXXDestructorDecl>(D) &&((!D || (!isa<CXXDestructorDecl>(D) && !isa< CXXConstructorDecl>(D))) ? static_cast<void> (0) : __assert_fail ("!D || (!isa<CXXDestructorDecl>(D) && !isa<CXXConstructorDecl>(D))" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 392, __PRETTY_FUNCTION__)) | |||
392 | !isa<CXXConstructorDecl>(D)))((!D || (!isa<CXXDestructorDecl>(D) && !isa< CXXConstructorDecl>(D))) ? static_cast<void> (0) : __assert_fail ("!D || (!isa<CXXDestructorDecl>(D) && !isa<CXXConstructorDecl>(D))" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 392, __PRETTY_FUNCTION__)); | |||
393 | } | |||
394 | CXXNameMangler(ItaniumMangleContextImpl &C, raw_ostream &Out_, | |||
395 | const CXXConstructorDecl *D, CXXCtorType Type) | |||
396 | : Context(C), Out(Out_), Structor(getStructor(D)), StructorType(Type), | |||
397 | SeqID(0), AbiTagsRoot(AbiTags) { } | |||
398 | CXXNameMangler(ItaniumMangleContextImpl &C, raw_ostream &Out_, | |||
399 | const CXXDestructorDecl *D, CXXDtorType Type) | |||
400 | : Context(C), Out(Out_), Structor(getStructor(D)), StructorType(Type), | |||
401 | SeqID(0), AbiTagsRoot(AbiTags) { } | |||
402 | ||||
403 | CXXNameMangler(CXXNameMangler &Outer, raw_ostream &Out_) | |||
404 | : Context(Outer.Context), Out(Out_), NullOut(false), | |||
405 | Structor(Outer.Structor), StructorType(Outer.StructorType), | |||
406 | SeqID(Outer.SeqID), FunctionTypeDepth(Outer.FunctionTypeDepth), | |||
407 | AbiTagsRoot(AbiTags), Substitutions(Outer.Substitutions) {} | |||
408 | ||||
409 | CXXNameMangler(CXXNameMangler &Outer, llvm::raw_null_ostream &Out_) | |||
410 | : Context(Outer.Context), Out(Out_), NullOut(true), | |||
411 | Structor(Outer.Structor), StructorType(Outer.StructorType), | |||
412 | SeqID(Outer.SeqID), FunctionTypeDepth(Outer.FunctionTypeDepth), | |||
413 | AbiTagsRoot(AbiTags), Substitutions(Outer.Substitutions) {} | |||
414 | ||||
415 | raw_ostream &getStream() { return Out; } | |||
416 | ||||
417 | void disableDerivedAbiTags() { DisableDerivedAbiTags = true; } | |||
418 | static bool shouldHaveAbiTags(ItaniumMangleContextImpl &C, const VarDecl *VD); | |||
419 | ||||
420 | void mangle(const NamedDecl *D); | |||
421 | void mangleCallOffset(int64_t NonVirtual, int64_t Virtual); | |||
422 | void mangleNumber(const llvm::APSInt &I); | |||
423 | void mangleNumber(int64_t Number); | |||
424 | void mangleFloat(const llvm::APFloat &F); | |||
425 | void mangleFunctionEncoding(const FunctionDecl *FD); | |||
426 | void mangleSeqID(unsigned SeqID); | |||
427 | void mangleName(const NamedDecl *ND); | |||
428 | void mangleType(QualType T); | |||
429 | void mangleNameOrStandardSubstitution(const NamedDecl *ND); | |||
430 | void mangleLambdaSig(const CXXRecordDecl *Lambda); | |||
431 | ||||
432 | private: | |||
433 | ||||
434 | bool mangleSubstitution(const NamedDecl *ND); | |||
435 | bool mangleSubstitution(QualType T); | |||
436 | bool mangleSubstitution(TemplateName Template); | |||
437 | bool mangleSubstitution(uintptr_t Ptr); | |||
438 | ||||
439 | void mangleExistingSubstitution(TemplateName name); | |||
440 | ||||
441 | bool mangleStandardSubstitution(const NamedDecl *ND); | |||
442 | ||||
443 | void addSubstitution(const NamedDecl *ND) { | |||
444 | ND = cast<NamedDecl>(ND->getCanonicalDecl()); | |||
445 | ||||
446 | addSubstitution(reinterpret_cast<uintptr_t>(ND)); | |||
447 | } | |||
448 | void addSubstitution(QualType T); | |||
449 | void addSubstitution(TemplateName Template); | |||
450 | void addSubstitution(uintptr_t Ptr); | |||
451 | // Destructive copy substitutions from other mangler. | |||
452 | void extendSubstitutions(CXXNameMangler* Other); | |||
453 | ||||
454 | void mangleUnresolvedPrefix(NestedNameSpecifier *qualifier, | |||
455 | bool recursive = false); | |||
456 | void mangleUnresolvedName(NestedNameSpecifier *qualifier, | |||
457 | DeclarationName name, | |||
458 | const TemplateArgumentLoc *TemplateArgs, | |||
459 | unsigned NumTemplateArgs, | |||
460 | unsigned KnownArity = UnknownArity); | |||
461 | ||||
462 | void mangleFunctionEncodingBareType(const FunctionDecl *FD); | |||
463 | ||||
464 | void mangleNameWithAbiTags(const NamedDecl *ND, | |||
465 | const AbiTagList *AdditionalAbiTags); | |||
466 | void mangleModuleName(const Module *M); | |||
467 | void mangleModuleNamePrefix(StringRef Name); | |||
468 | void mangleTemplateName(const TemplateDecl *TD, | |||
469 | const TemplateArgument *TemplateArgs, | |||
470 | unsigned NumTemplateArgs); | |||
471 | void mangleUnqualifiedName(const NamedDecl *ND, | |||
472 | const AbiTagList *AdditionalAbiTags) { | |||
473 | mangleUnqualifiedName(ND, ND->getDeclName(), UnknownArity, | |||
474 | AdditionalAbiTags); | |||
475 | } | |||
476 | void mangleUnqualifiedName(const NamedDecl *ND, DeclarationName Name, | |||
477 | unsigned KnownArity, | |||
478 | const AbiTagList *AdditionalAbiTags); | |||
479 | void mangleUnscopedName(const NamedDecl *ND, | |||
480 | const AbiTagList *AdditionalAbiTags); | |||
481 | void mangleUnscopedTemplateName(const TemplateDecl *ND, | |||
482 | const AbiTagList *AdditionalAbiTags); | |||
483 | void mangleUnscopedTemplateName(TemplateName, | |||
484 | const AbiTagList *AdditionalAbiTags); | |||
485 | void mangleSourceName(const IdentifierInfo *II); | |||
486 | void mangleRegCallName(const IdentifierInfo *II); | |||
487 | void mangleSourceNameWithAbiTags( | |||
488 | const NamedDecl *ND, const AbiTagList *AdditionalAbiTags = nullptr); | |||
489 | void mangleLocalName(const Decl *D, | |||
490 | const AbiTagList *AdditionalAbiTags); | |||
491 | void mangleBlockForPrefix(const BlockDecl *Block); | |||
492 | void mangleUnqualifiedBlock(const BlockDecl *Block); | |||
493 | void mangleTemplateParamDecl(const NamedDecl *Decl); | |||
494 | void mangleLambda(const CXXRecordDecl *Lambda); | |||
495 | void mangleNestedName(const NamedDecl *ND, const DeclContext *DC, | |||
496 | const AbiTagList *AdditionalAbiTags, | |||
497 | bool NoFunction=false); | |||
498 | void mangleNestedName(const TemplateDecl *TD, | |||
499 | const TemplateArgument *TemplateArgs, | |||
500 | unsigned NumTemplateArgs); | |||
501 | void manglePrefix(NestedNameSpecifier *qualifier); | |||
502 | void manglePrefix(const DeclContext *DC, bool NoFunction=false); | |||
503 | void manglePrefix(QualType type); | |||
504 | void mangleTemplatePrefix(const TemplateDecl *ND, bool NoFunction=false); | |||
505 | void mangleTemplatePrefix(TemplateName Template); | |||
506 | bool mangleUnresolvedTypeOrSimpleId(QualType DestroyedType, | |||
507 | StringRef Prefix = ""); | |||
508 | void mangleOperatorName(DeclarationName Name, unsigned Arity); | |||
509 | void mangleOperatorName(OverloadedOperatorKind OO, unsigned Arity); | |||
510 | void mangleVendorQualifier(StringRef qualifier); | |||
511 | void mangleQualifiers(Qualifiers Quals, const DependentAddressSpaceType *DAST = nullptr); | |||
512 | void mangleRefQualifier(RefQualifierKind RefQualifier); | |||
513 | ||||
514 | void mangleObjCMethodName(const ObjCMethodDecl *MD); | |||
515 | ||||
516 | // Declare manglers for every type class. | |||
517 | #define ABSTRACT_TYPE(CLASS, PARENT) | |||
518 | #define NON_CANONICAL_TYPE(CLASS, PARENT) | |||
519 | #define TYPE(CLASS, PARENT) void mangleType(const CLASS##Type *T); | |||
520 | #include "clang/AST/TypeNodes.inc" | |||
521 | ||||
522 | void mangleType(const TagType*); | |||
523 | void mangleType(TemplateName); | |||
524 | static StringRef getCallingConvQualifierName(CallingConv CC); | |||
525 | void mangleExtParameterInfo(FunctionProtoType::ExtParameterInfo info); | |||
526 | void mangleExtFunctionInfo(const FunctionType *T); | |||
527 | void mangleBareFunctionType(const FunctionProtoType *T, bool MangleReturnType, | |||
528 | const FunctionDecl *FD = nullptr); | |||
529 | void mangleNeonVectorType(const VectorType *T); | |||
530 | void mangleNeonVectorType(const DependentVectorType *T); | |||
531 | void mangleAArch64NeonVectorType(const VectorType *T); | |||
532 | void mangleAArch64NeonVectorType(const DependentVectorType *T); | |||
533 | ||||
534 | void mangleIntegerLiteral(QualType T, const llvm::APSInt &Value); | |||
535 | void mangleMemberExprBase(const Expr *base, bool isArrow); | |||
536 | void mangleMemberExpr(const Expr *base, bool isArrow, | |||
537 | NestedNameSpecifier *qualifier, | |||
538 | NamedDecl *firstQualifierLookup, | |||
539 | DeclarationName name, | |||
540 | const TemplateArgumentLoc *TemplateArgs, | |||
541 | unsigned NumTemplateArgs, | |||
542 | unsigned knownArity); | |||
543 | void mangleCastExpression(const Expr *E, StringRef CastEncoding); | |||
544 | void mangleInitListElements(const InitListExpr *InitList); | |||
545 | void mangleDeclRefExpr(const NamedDecl *D); | |||
546 | void mangleExpression(const Expr *E, unsigned Arity = UnknownArity); | |||
547 | void mangleCXXCtorType(CXXCtorType T, const CXXRecordDecl *InheritedFrom); | |||
548 | void mangleCXXDtorType(CXXDtorType T); | |||
549 | ||||
550 | void mangleTemplateArgs(const TemplateArgumentLoc *TemplateArgs, | |||
551 | unsigned NumTemplateArgs); | |||
552 | void mangleTemplateArgs(const TemplateArgument *TemplateArgs, | |||
553 | unsigned NumTemplateArgs); | |||
554 | void mangleTemplateArgs(const TemplateArgumentList &AL); | |||
555 | void mangleTemplateArg(TemplateArgument A); | |||
556 | ||||
557 | void mangleTemplateParameter(unsigned Depth, unsigned Index); | |||
558 | ||||
559 | void mangleFunctionParam(const ParmVarDecl *parm); | |||
560 | ||||
561 | void writeAbiTags(const NamedDecl *ND, | |||
562 | const AbiTagList *AdditionalAbiTags); | |||
563 | ||||
564 | // Returns sorted unique list of ABI tags. | |||
565 | AbiTagList makeFunctionReturnTypeTags(const FunctionDecl *FD); | |||
566 | // Returns sorted unique list of ABI tags. | |||
567 | AbiTagList makeVariableTypeTags(const VarDecl *VD); | |||
568 | }; | |||
569 | ||||
570 | } | |||
571 | ||||
572 | bool ItaniumMangleContextImpl::shouldMangleCXXName(const NamedDecl *D) { | |||
573 | const FunctionDecl *FD = dyn_cast<FunctionDecl>(D); | |||
574 | if (FD) { | |||
575 | LanguageLinkage L = FD->getLanguageLinkage(); | |||
576 | // Overloadable functions need mangling. | |||
577 | if (FD->hasAttr<OverloadableAttr>()) | |||
578 | return true; | |||
579 | ||||
580 | // "main" is not mangled. | |||
581 | if (FD->isMain()) | |||
582 | return false; | |||
583 | ||||
584 | // The Windows ABI expects that we would never mangle "typical" | |||
585 | // user-defined entry points regardless of visibility or freestanding-ness. | |||
586 | // | |||
587 | // N.B. This is distinct from asking about "main". "main" has a lot of | |||
588 | // special rules associated with it in the standard while these | |||
589 | // user-defined entry points are outside of the purview of the standard. | |||
590 | // For example, there can be only one definition for "main" in a standards | |||
591 | // compliant program; however nothing forbids the existence of wmain and | |||
592 | // WinMain in the same translation unit. | |||
593 | if (FD->isMSVCRTEntryPoint()) | |||
594 | return false; | |||
595 | ||||
596 | // C++ functions and those whose names are not a simple identifier need | |||
597 | // mangling. | |||
598 | if (!FD->getDeclName().isIdentifier() || L == CXXLanguageLinkage) | |||
599 | return true; | |||
600 | ||||
601 | // C functions are not mangled. | |||
602 | if (L == CLanguageLinkage) | |||
603 | return false; | |||
604 | } | |||
605 | ||||
606 | // Otherwise, no mangling is done outside C++ mode. | |||
607 | if (!getASTContext().getLangOpts().CPlusPlus) | |||
608 | return false; | |||
609 | ||||
610 | const VarDecl *VD = dyn_cast<VarDecl>(D); | |||
611 | if (VD && !isa<DecompositionDecl>(D)) { | |||
612 | // C variables are not mangled. | |||
613 | if (VD->isExternC()) | |||
614 | return false; | |||
615 | ||||
616 | // Variables at global scope with non-internal linkage are not mangled | |||
617 | const DeclContext *DC = getEffectiveDeclContext(D); | |||
618 | // Check for extern variable declared locally. | |||
619 | if (DC->isFunctionOrMethod() && D->hasLinkage()) | |||
620 | while (!DC->isNamespace() && !DC->isTranslationUnit()) | |||
621 | DC = getEffectiveParentContext(DC); | |||
622 | if (DC->isTranslationUnit() && D->getFormalLinkage() != InternalLinkage && | |||
623 | !CXXNameMangler::shouldHaveAbiTags(*this, VD) && | |||
624 | !isa<VarTemplateSpecializationDecl>(D)) | |||
625 | return false; | |||
626 | } | |||
627 | ||||
628 | return true; | |||
629 | } | |||
630 | ||||
631 | void CXXNameMangler::writeAbiTags(const NamedDecl *ND, | |||
632 | const AbiTagList *AdditionalAbiTags) { | |||
633 | assert(AbiTags && "require AbiTagState")((AbiTags && "require AbiTagState") ? static_cast< void> (0) : __assert_fail ("AbiTags && \"require AbiTagState\"" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 633, __PRETTY_FUNCTION__)); | |||
634 | AbiTags->write(Out, ND, DisableDerivedAbiTags ? nullptr : AdditionalAbiTags); | |||
635 | } | |||
636 | ||||
637 | void CXXNameMangler::mangleSourceNameWithAbiTags( | |||
638 | const NamedDecl *ND, const AbiTagList *AdditionalAbiTags) { | |||
639 | mangleSourceName(ND->getIdentifier()); | |||
640 | writeAbiTags(ND, AdditionalAbiTags); | |||
641 | } | |||
642 | ||||
643 | void CXXNameMangler::mangle(const NamedDecl *D) { | |||
644 | // <mangled-name> ::= _Z <encoding> | |||
645 | // ::= <data name> | |||
646 | // ::= <special-name> | |||
647 | Out << "_Z"; | |||
648 | if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) | |||
649 | mangleFunctionEncoding(FD); | |||
650 | else if (const VarDecl *VD = dyn_cast<VarDecl>(D)) | |||
651 | mangleName(VD); | |||
652 | else if (const IndirectFieldDecl *IFD = dyn_cast<IndirectFieldDecl>(D)) | |||
653 | mangleName(IFD->getAnonField()); | |||
654 | else | |||
655 | mangleName(cast<FieldDecl>(D)); | |||
656 | } | |||
657 | ||||
658 | void CXXNameMangler::mangleFunctionEncoding(const FunctionDecl *FD) { | |||
659 | // <encoding> ::= <function name> <bare-function-type> | |||
660 | ||||
661 | // Don't mangle in the type if this isn't a decl we should typically mangle. | |||
662 | if (!Context.shouldMangleDeclName(FD)) { | |||
663 | mangleName(FD); | |||
664 | return; | |||
665 | } | |||
666 | ||||
667 | AbiTagList ReturnTypeAbiTags = makeFunctionReturnTypeTags(FD); | |||
668 | if (ReturnTypeAbiTags.empty()) { | |||
669 | // There are no tags for return type, the simplest case. | |||
670 | mangleName(FD); | |||
671 | mangleFunctionEncodingBareType(FD); | |||
672 | return; | |||
673 | } | |||
674 | ||||
675 | // Mangle function name and encoding to temporary buffer. | |||
676 | // We have to output name and encoding to the same mangler to get the same | |||
677 | // substitution as it will be in final mangling. | |||
678 | SmallString<256> FunctionEncodingBuf; | |||
679 | llvm::raw_svector_ostream FunctionEncodingStream(FunctionEncodingBuf); | |||
680 | CXXNameMangler FunctionEncodingMangler(*this, FunctionEncodingStream); | |||
681 | // Output name of the function. | |||
682 | FunctionEncodingMangler.disableDerivedAbiTags(); | |||
683 | FunctionEncodingMangler.mangleNameWithAbiTags(FD, nullptr); | |||
684 | ||||
685 | // Remember length of the function name in the buffer. | |||
686 | size_t EncodingPositionStart = FunctionEncodingStream.str().size(); | |||
687 | FunctionEncodingMangler.mangleFunctionEncodingBareType(FD); | |||
688 | ||||
689 | // Get tags from return type that are not present in function name or | |||
690 | // encoding. | |||
691 | const AbiTagList &UsedAbiTags = | |||
692 | FunctionEncodingMangler.AbiTagsRoot.getSortedUniqueUsedAbiTags(); | |||
693 | AbiTagList AdditionalAbiTags(ReturnTypeAbiTags.size()); | |||
694 | AdditionalAbiTags.erase( | |||
695 | std::set_difference(ReturnTypeAbiTags.begin(), ReturnTypeAbiTags.end(), | |||
696 | UsedAbiTags.begin(), UsedAbiTags.end(), | |||
697 | AdditionalAbiTags.begin()), | |||
698 | AdditionalAbiTags.end()); | |||
699 | ||||
700 | // Output name with implicit tags and function encoding from temporary buffer. | |||
701 | mangleNameWithAbiTags(FD, &AdditionalAbiTags); | |||
702 | Out << FunctionEncodingStream.str().substr(EncodingPositionStart); | |||
703 | ||||
704 | // Function encoding could create new substitutions so we have to add | |||
705 | // temp mangled substitutions to main mangler. | |||
706 | extendSubstitutions(&FunctionEncodingMangler); | |||
707 | } | |||
708 | ||||
709 | void CXXNameMangler::mangleFunctionEncodingBareType(const FunctionDecl *FD) { | |||
710 | if (FD->hasAttr<EnableIfAttr>()) { | |||
711 | FunctionTypeDepthState Saved = FunctionTypeDepth.push(); | |||
712 | Out << "Ua9enable_ifI"; | |||
713 | for (AttrVec::const_iterator I = FD->getAttrs().begin(), | |||
714 | E = FD->getAttrs().end(); | |||
715 | I != E; ++I) { | |||
716 | EnableIfAttr *EIA = dyn_cast<EnableIfAttr>(*I); | |||
717 | if (!EIA) | |||
718 | continue; | |||
719 | Out << 'X'; | |||
720 | mangleExpression(EIA->getCond()); | |||
721 | Out << 'E'; | |||
722 | } | |||
723 | Out << 'E'; | |||
724 | FunctionTypeDepth.pop(Saved); | |||
725 | } | |||
726 | ||||
727 | // When mangling an inheriting constructor, the bare function type used is | |||
728 | // that of the inherited constructor. | |||
729 | if (auto *CD = dyn_cast<CXXConstructorDecl>(FD)) | |||
730 | if (auto Inherited = CD->getInheritedConstructor()) | |||
731 | FD = Inherited.getConstructor(); | |||
732 | ||||
733 | // Whether the mangling of a function type includes the return type depends on | |||
734 | // the context and the nature of the function. The rules for deciding whether | |||
735 | // the return type is included are: | |||
736 | // | |||
737 | // 1. Template functions (names or types) have return types encoded, with | |||
738 | // the exceptions listed below. | |||
739 | // 2. Function types not appearing as part of a function name mangling, | |||
740 | // e.g. parameters, pointer types, etc., have return type encoded, with the | |||
741 | // exceptions listed below. | |||
742 | // 3. Non-template function names do not have return types encoded. | |||
743 | // | |||
744 | // The exceptions mentioned in (1) and (2) above, for which the return type is | |||
745 | // never included, are | |||
746 | // 1. Constructors. | |||
747 | // 2. Destructors. | |||
748 | // 3. Conversion operator functions, e.g. operator int. | |||
749 | bool MangleReturnType = false; | |||
750 | if (FunctionTemplateDecl *PrimaryTemplate = FD->getPrimaryTemplate()) { | |||
751 | if (!(isa<CXXConstructorDecl>(FD) || isa<CXXDestructorDecl>(FD) || | |||
752 | isa<CXXConversionDecl>(FD))) | |||
753 | MangleReturnType = true; | |||
754 | ||||
755 | // Mangle the type of the primary template. | |||
756 | FD = PrimaryTemplate->getTemplatedDecl(); | |||
757 | } | |||
758 | ||||
759 | mangleBareFunctionType(FD->getType()->castAs<FunctionProtoType>(), | |||
760 | MangleReturnType, FD); | |||
761 | } | |||
762 | ||||
763 | static const DeclContext *IgnoreLinkageSpecDecls(const DeclContext *DC) { | |||
764 | while (isa<LinkageSpecDecl>(DC)) { | |||
765 | DC = getEffectiveParentContext(DC); | |||
766 | } | |||
767 | ||||
768 | return DC; | |||
769 | } | |||
770 | ||||
771 | /// Return whether a given namespace is the 'std' namespace. | |||
772 | static bool isStd(const NamespaceDecl *NS) { | |||
773 | if (!IgnoreLinkageSpecDecls(getEffectiveParentContext(NS)) | |||
774 | ->isTranslationUnit()) | |||
775 | return false; | |||
776 | ||||
777 | const IdentifierInfo *II = NS->getOriginalNamespace()->getIdentifier(); | |||
778 | return II && II->isStr("std"); | |||
779 | } | |||
780 | ||||
781 | // isStdNamespace - Return whether a given decl context is a toplevel 'std' | |||
782 | // namespace. | |||
783 | static bool isStdNamespace(const DeclContext *DC) { | |||
784 | if (!DC->isNamespace()) | |||
785 | return false; | |||
786 | ||||
787 | return isStd(cast<NamespaceDecl>(DC)); | |||
788 | } | |||
789 | ||||
790 | static const TemplateDecl * | |||
791 | isTemplate(const NamedDecl *ND, const TemplateArgumentList *&TemplateArgs) { | |||
792 | // Check if we have a function template. | |||
793 | if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(ND)) { | |||
794 | if (const TemplateDecl *TD = FD->getPrimaryTemplate()) { | |||
795 | TemplateArgs = FD->getTemplateSpecializationArgs(); | |||
796 | return TD; | |||
797 | } | |||
798 | } | |||
799 | ||||
800 | // Check if we have a class template. | |||
801 | if (const ClassTemplateSpecializationDecl *Spec = | |||
802 | dyn_cast<ClassTemplateSpecializationDecl>(ND)) { | |||
803 | TemplateArgs = &Spec->getTemplateArgs(); | |||
804 | return Spec->getSpecializedTemplate(); | |||
805 | } | |||
806 | ||||
807 | // Check if we have a variable template. | |||
808 | if (const VarTemplateSpecializationDecl *Spec = | |||
809 | dyn_cast<VarTemplateSpecializationDecl>(ND)) { | |||
810 | TemplateArgs = &Spec->getTemplateArgs(); | |||
811 | return Spec->getSpecializedTemplate(); | |||
812 | } | |||
813 | ||||
814 | return nullptr; | |||
815 | } | |||
816 | ||||
817 | void CXXNameMangler::mangleName(const NamedDecl *ND) { | |||
818 | if (const VarDecl *VD = dyn_cast<VarDecl>(ND)) { | |||
819 | // Variables should have implicit tags from its type. | |||
820 | AbiTagList VariableTypeAbiTags = makeVariableTypeTags(VD); | |||
821 | if (VariableTypeAbiTags.empty()) { | |||
822 | // Simple case no variable type tags. | |||
823 | mangleNameWithAbiTags(VD, nullptr); | |||
824 | return; | |||
825 | } | |||
826 | ||||
827 | // Mangle variable name to null stream to collect tags. | |||
828 | llvm::raw_null_ostream NullOutStream; | |||
829 | CXXNameMangler VariableNameMangler(*this, NullOutStream); | |||
830 | VariableNameMangler.disableDerivedAbiTags(); | |||
831 | VariableNameMangler.mangleNameWithAbiTags(VD, nullptr); | |||
832 | ||||
833 | // Get tags from variable type that are not present in its name. | |||
834 | const AbiTagList &UsedAbiTags = | |||
835 | VariableNameMangler.AbiTagsRoot.getSortedUniqueUsedAbiTags(); | |||
836 | AbiTagList AdditionalAbiTags(VariableTypeAbiTags.size()); | |||
837 | AdditionalAbiTags.erase( | |||
838 | std::set_difference(VariableTypeAbiTags.begin(), | |||
839 | VariableTypeAbiTags.end(), UsedAbiTags.begin(), | |||
840 | UsedAbiTags.end(), AdditionalAbiTags.begin()), | |||
841 | AdditionalAbiTags.end()); | |||
842 | ||||
843 | // Output name with implicit tags. | |||
844 | mangleNameWithAbiTags(VD, &AdditionalAbiTags); | |||
845 | } else { | |||
846 | mangleNameWithAbiTags(ND, nullptr); | |||
847 | } | |||
848 | } | |||
849 | ||||
850 | void CXXNameMangler::mangleNameWithAbiTags(const NamedDecl *ND, | |||
851 | const AbiTagList *AdditionalAbiTags) { | |||
852 | // <name> ::= [<module-name>] <nested-name> | |||
853 | // ::= [<module-name>] <unscoped-name> | |||
854 | // ::= [<module-name>] <unscoped-template-name> <template-args> | |||
855 | // ::= <local-name> | |||
856 | // | |||
857 | const DeclContext *DC = getEffectiveDeclContext(ND); | |||
858 | ||||
859 | // If this is an extern variable declared locally, the relevant DeclContext | |||
860 | // is that of the containing namespace, or the translation unit. | |||
861 | // FIXME: This is a hack; extern variables declared locally should have | |||
862 | // a proper semantic declaration context! | |||
863 | if (isLocalContainerContext(DC) && ND->hasLinkage() && !isLambda(ND)) | |||
864 | while (!DC->isNamespace() && !DC->isTranslationUnit()) | |||
865 | DC = getEffectiveParentContext(DC); | |||
866 | else if (GetLocalClassDecl(ND)) { | |||
867 | mangleLocalName(ND, AdditionalAbiTags); | |||
868 | return; | |||
869 | } | |||
870 | ||||
871 | DC = IgnoreLinkageSpecDecls(DC); | |||
872 | ||||
873 | if (isLocalContainerContext(DC)) { | |||
874 | mangleLocalName(ND, AdditionalAbiTags); | |||
875 | return; | |||
876 | } | |||
877 | ||||
878 | // Do not mangle the owning module for an external linkage declaration. | |||
879 | // This enables backwards-compatibility with non-modular code, and is | |||
880 | // a valid choice since conflicts are not permitted by C++ Modules TS | |||
881 | // [basic.def.odr]/6.2. | |||
882 | if (!ND->hasExternalFormalLinkage()) | |||
883 | if (Module *M = ND->getOwningModuleForLinkage()) | |||
884 | mangleModuleName(M); | |||
885 | ||||
886 | if (DC->isTranslationUnit() || isStdNamespace(DC)) { | |||
887 | // Check if we have a template. | |||
888 | const TemplateArgumentList *TemplateArgs = nullptr; | |||
889 | if (const TemplateDecl *TD = isTemplate(ND, TemplateArgs)) { | |||
890 | mangleUnscopedTemplateName(TD, AdditionalAbiTags); | |||
891 | mangleTemplateArgs(*TemplateArgs); | |||
892 | return; | |||
893 | } | |||
894 | ||||
895 | mangleUnscopedName(ND, AdditionalAbiTags); | |||
896 | return; | |||
897 | } | |||
898 | ||||
899 | mangleNestedName(ND, DC, AdditionalAbiTags); | |||
900 | } | |||
901 | ||||
902 | void CXXNameMangler::mangleModuleName(const Module *M) { | |||
903 | // Implement the C++ Modules TS name mangling proposal; see | |||
904 | // https://gcc.gnu.org/wiki/cxx-modules?action=AttachFile | |||
905 | // | |||
906 | // <module-name> ::= W <unscoped-name>+ E | |||
907 | // ::= W <module-subst> <unscoped-name>* E | |||
908 | Out << 'W'; | |||
909 | mangleModuleNamePrefix(M->Name); | |||
910 | Out << 'E'; | |||
911 | } | |||
912 | ||||
913 | void CXXNameMangler::mangleModuleNamePrefix(StringRef Name) { | |||
914 | // <module-subst> ::= _ <seq-id> # 0 < seq-id < 10 | |||
915 | // ::= W <seq-id - 10> _ # otherwise | |||
916 | auto It = ModuleSubstitutions.find(Name); | |||
917 | if (It != ModuleSubstitutions.end()) { | |||
918 | if (It->second < 10) | |||
919 | Out << '_' << static_cast<char>('0' + It->second); | |||
920 | else | |||
921 | Out << 'W' << (It->second - 10) << '_'; | |||
922 | return; | |||
923 | } | |||
924 | ||||
925 | // FIXME: Preserve hierarchy in module names rather than flattening | |||
926 | // them to strings; use Module*s as substitution keys. | |||
927 | auto Parts = Name.rsplit('.'); | |||
928 | if (Parts.second.empty()) | |||
929 | Parts.second = Parts.first; | |||
930 | else | |||
931 | mangleModuleNamePrefix(Parts.first); | |||
932 | ||||
933 | Out << Parts.second.size() << Parts.second; | |||
934 | ModuleSubstitutions.insert({Name, ModuleSubstitutions.size()}); | |||
935 | } | |||
936 | ||||
937 | void CXXNameMangler::mangleTemplateName(const TemplateDecl *TD, | |||
938 | const TemplateArgument *TemplateArgs, | |||
939 | unsigned NumTemplateArgs) { | |||
940 | const DeclContext *DC = IgnoreLinkageSpecDecls(getEffectiveDeclContext(TD)); | |||
941 | ||||
942 | if (DC->isTranslationUnit() || isStdNamespace(DC)) { | |||
943 | mangleUnscopedTemplateName(TD, nullptr); | |||
944 | mangleTemplateArgs(TemplateArgs, NumTemplateArgs); | |||
945 | } else { | |||
946 | mangleNestedName(TD, TemplateArgs, NumTemplateArgs); | |||
947 | } | |||
948 | } | |||
949 | ||||
950 | void CXXNameMangler::mangleUnscopedName(const NamedDecl *ND, | |||
951 | const AbiTagList *AdditionalAbiTags) { | |||
952 | // <unscoped-name> ::= <unqualified-name> | |||
953 | // ::= St <unqualified-name> # ::std:: | |||
954 | ||||
955 | if (isStdNamespace(IgnoreLinkageSpecDecls(getEffectiveDeclContext(ND)))) | |||
956 | Out << "St"; | |||
957 | ||||
958 | mangleUnqualifiedName(ND, AdditionalAbiTags); | |||
959 | } | |||
960 | ||||
961 | void CXXNameMangler::mangleUnscopedTemplateName( | |||
962 | const TemplateDecl *ND, const AbiTagList *AdditionalAbiTags) { | |||
963 | // <unscoped-template-name> ::= <unscoped-name> | |||
964 | // ::= <substitution> | |||
965 | if (mangleSubstitution(ND)) | |||
966 | return; | |||
967 | ||||
968 | // <template-template-param> ::= <template-param> | |||
969 | if (const auto *TTP = dyn_cast<TemplateTemplateParmDecl>(ND)) { | |||
970 | assert(!AdditionalAbiTags &&((!AdditionalAbiTags && "template template param cannot have abi tags" ) ? static_cast<void> (0) : __assert_fail ("!AdditionalAbiTags && \"template template param cannot have abi tags\"" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 971, __PRETTY_FUNCTION__)) | |||
971 | "template template param cannot have abi tags")((!AdditionalAbiTags && "template template param cannot have abi tags" ) ? static_cast<void> (0) : __assert_fail ("!AdditionalAbiTags && \"template template param cannot have abi tags\"" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 971, __PRETTY_FUNCTION__)); | |||
972 | mangleTemplateParameter(TTP->getDepth(), TTP->getIndex()); | |||
973 | } else if (isa<BuiltinTemplateDecl>(ND) || isa<ConceptDecl>(ND)) { | |||
974 | mangleUnscopedName(ND, AdditionalAbiTags); | |||
975 | } else { | |||
976 | mangleUnscopedName(ND->getTemplatedDecl(), AdditionalAbiTags); | |||
977 | } | |||
978 | ||||
979 | addSubstitution(ND); | |||
980 | } | |||
981 | ||||
982 | void CXXNameMangler::mangleUnscopedTemplateName( | |||
983 | TemplateName Template, const AbiTagList *AdditionalAbiTags) { | |||
984 | // <unscoped-template-name> ::= <unscoped-name> | |||
985 | // ::= <substitution> | |||
986 | if (TemplateDecl *TD = Template.getAsTemplateDecl()) | |||
987 | return mangleUnscopedTemplateName(TD, AdditionalAbiTags); | |||
988 | ||||
989 | if (mangleSubstitution(Template)) | |||
990 | return; | |||
991 | ||||
992 | assert(!AdditionalAbiTags &&((!AdditionalAbiTags && "dependent template name cannot have abi tags" ) ? static_cast<void> (0) : __assert_fail ("!AdditionalAbiTags && \"dependent template name cannot have abi tags\"" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 993, __PRETTY_FUNCTION__)) | |||
993 | "dependent template name cannot have abi tags")((!AdditionalAbiTags && "dependent template name cannot have abi tags" ) ? static_cast<void> (0) : __assert_fail ("!AdditionalAbiTags && \"dependent template name cannot have abi tags\"" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 993, __PRETTY_FUNCTION__)); | |||
994 | ||||
995 | DependentTemplateName *Dependent = Template.getAsDependentTemplateName(); | |||
996 | assert(Dependent && "Not a dependent template name?")((Dependent && "Not a dependent template name?") ? static_cast <void> (0) : __assert_fail ("Dependent && \"Not a dependent template name?\"" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 996, __PRETTY_FUNCTION__)); | |||
997 | if (const IdentifierInfo *Id = Dependent->getIdentifier()) | |||
998 | mangleSourceName(Id); | |||
999 | else | |||
1000 | mangleOperatorName(Dependent->getOperator(), UnknownArity); | |||
1001 | ||||
1002 | addSubstitution(Template); | |||
1003 | } | |||
1004 | ||||
1005 | void CXXNameMangler::mangleFloat(const llvm::APFloat &f) { | |||
1006 | // ABI: | |||
1007 | // Floating-point literals are encoded using a fixed-length | |||
1008 | // lowercase hexadecimal string corresponding to the internal | |||
1009 | // representation (IEEE on Itanium), high-order bytes first, | |||
1010 | // without leading zeroes. For example: "Lf bf800000 E" is -1.0f | |||
1011 | // on Itanium. | |||
1012 | // The 'without leading zeroes' thing seems to be an editorial | |||
1013 | // mistake; see the discussion on cxx-abi-dev beginning on | |||
1014 | // 2012-01-16. | |||
1015 | ||||
1016 | // Our requirements here are just barely weird enough to justify | |||
1017 | // using a custom algorithm instead of post-processing APInt::toString(). | |||
1018 | ||||
1019 | llvm::APInt valueBits = f.bitcastToAPInt(); | |||
1020 | unsigned numCharacters = (valueBits.getBitWidth() + 3) / 4; | |||
1021 | assert(numCharacters != 0)((numCharacters != 0) ? static_cast<void> (0) : __assert_fail ("numCharacters != 0", "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 1021, __PRETTY_FUNCTION__)); | |||
1022 | ||||
1023 | // Allocate a buffer of the right number of characters. | |||
1024 | SmallVector<char, 20> buffer(numCharacters); | |||
1025 | ||||
1026 | // Fill the buffer left-to-right. | |||
1027 | for (unsigned stringIndex = 0; stringIndex != numCharacters; ++stringIndex) { | |||
1028 | // The bit-index of the next hex digit. | |||
1029 | unsigned digitBitIndex = 4 * (numCharacters - stringIndex - 1); | |||
1030 | ||||
1031 | // Project out 4 bits starting at 'digitIndex'. | |||
1032 | uint64_t hexDigit = valueBits.getRawData()[digitBitIndex / 64]; | |||
1033 | hexDigit >>= (digitBitIndex % 64); | |||
1034 | hexDigit &= 0xF; | |||
1035 | ||||
1036 | // Map that over to a lowercase hex digit. | |||
1037 | static const char charForHex[16] = { | |||
1038 | '0', '1', '2', '3', '4', '5', '6', '7', | |||
1039 | '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' | |||
1040 | }; | |||
1041 | buffer[stringIndex] = charForHex[hexDigit]; | |||
1042 | } | |||
1043 | ||||
1044 | Out.write(buffer.data(), numCharacters); | |||
1045 | } | |||
1046 | ||||
1047 | void CXXNameMangler::mangleNumber(const llvm::APSInt &Value) { | |||
1048 | if (Value.isSigned() && Value.isNegative()) { | |||
1049 | Out << 'n'; | |||
1050 | Value.abs().print(Out, /*signed*/ false); | |||
1051 | } else { | |||
1052 | Value.print(Out, /*signed*/ false); | |||
1053 | } | |||
1054 | } | |||
1055 | ||||
1056 | void CXXNameMangler::mangleNumber(int64_t Number) { | |||
1057 | // <number> ::= [n] <non-negative decimal integer> | |||
1058 | if (Number < 0) { | |||
1059 | Out << 'n'; | |||
1060 | Number = -Number; | |||
1061 | } | |||
1062 | ||||
1063 | Out << Number; | |||
1064 | } | |||
1065 | ||||
1066 | void CXXNameMangler::mangleCallOffset(int64_t NonVirtual, int64_t Virtual) { | |||
1067 | // <call-offset> ::= h <nv-offset> _ | |||
1068 | // ::= v <v-offset> _ | |||
1069 | // <nv-offset> ::= <offset number> # non-virtual base override | |||
1070 | // <v-offset> ::= <offset number> _ <virtual offset number> | |||
1071 | // # virtual base override, with vcall offset | |||
1072 | if (!Virtual) { | |||
1073 | Out << 'h'; | |||
1074 | mangleNumber(NonVirtual); | |||
1075 | Out << '_'; | |||
1076 | return; | |||
1077 | } | |||
1078 | ||||
1079 | Out << 'v'; | |||
1080 | mangleNumber(NonVirtual); | |||
1081 | Out << '_'; | |||
1082 | mangleNumber(Virtual); | |||
1083 | Out << '_'; | |||
1084 | } | |||
1085 | ||||
1086 | void CXXNameMangler::manglePrefix(QualType type) { | |||
1087 | if (const auto *TST = type->getAs<TemplateSpecializationType>()) { | |||
1088 | if (!mangleSubstitution(QualType(TST, 0))) { | |||
1089 | mangleTemplatePrefix(TST->getTemplateName()); | |||
1090 | ||||
1091 | // FIXME: GCC does not appear to mangle the template arguments when | |||
1092 | // the template in question is a dependent template name. Should we | |||
1093 | // emulate that badness? | |||
1094 | mangleTemplateArgs(TST->getArgs(), TST->getNumArgs()); | |||
1095 | addSubstitution(QualType(TST, 0)); | |||
1096 | } | |||
1097 | } else if (const auto *DTST = | |||
1098 | type->getAs<DependentTemplateSpecializationType>()) { | |||
1099 | if (!mangleSubstitution(QualType(DTST, 0))) { | |||
1100 | TemplateName Template = getASTContext().getDependentTemplateName( | |||
1101 | DTST->getQualifier(), DTST->getIdentifier()); | |||
1102 | mangleTemplatePrefix(Template); | |||
1103 | ||||
1104 | // FIXME: GCC does not appear to mangle the template arguments when | |||
1105 | // the template in question is a dependent template name. Should we | |||
1106 | // emulate that badness? | |||
1107 | mangleTemplateArgs(DTST->getArgs(), DTST->getNumArgs()); | |||
1108 | addSubstitution(QualType(DTST, 0)); | |||
1109 | } | |||
1110 | } else { | |||
1111 | // We use the QualType mangle type variant here because it handles | |||
1112 | // substitutions. | |||
1113 | mangleType(type); | |||
1114 | } | |||
1115 | } | |||
1116 | ||||
1117 | /// Mangle everything prior to the base-unresolved-name in an unresolved-name. | |||
1118 | /// | |||
1119 | /// \param recursive - true if this is being called recursively, | |||
1120 | /// i.e. if there is more prefix "to the right". | |||
1121 | void CXXNameMangler::mangleUnresolvedPrefix(NestedNameSpecifier *qualifier, | |||
1122 | bool recursive) { | |||
1123 | ||||
1124 | // x, ::x | |||
1125 | // <unresolved-name> ::= [gs] <base-unresolved-name> | |||
1126 | ||||
1127 | // T::x / decltype(p)::x | |||
1128 | // <unresolved-name> ::= sr <unresolved-type> <base-unresolved-name> | |||
1129 | ||||
1130 | // T::N::x /decltype(p)::N::x | |||
1131 | // <unresolved-name> ::= srN <unresolved-type> <unresolved-qualifier-level>+ E | |||
1132 | // <base-unresolved-name> | |||
1133 | ||||
1134 | // A::x, N::y, A<T>::z; "gs" means leading "::" | |||
1135 | // <unresolved-name> ::= [gs] sr <unresolved-qualifier-level>+ E | |||
1136 | // <base-unresolved-name> | |||
1137 | ||||
1138 | switch (qualifier->getKind()) { | |||
1139 | case NestedNameSpecifier::Global: | |||
1140 | Out << "gs"; | |||
1141 | ||||
1142 | // We want an 'sr' unless this is the entire NNS. | |||
1143 | if (recursive) | |||
1144 | Out << "sr"; | |||
1145 | ||||
1146 | // We never want an 'E' here. | |||
1147 | return; | |||
1148 | ||||
1149 | case NestedNameSpecifier::Super: | |||
1150 | llvm_unreachable("Can't mangle __super specifier")::llvm::llvm_unreachable_internal("Can't mangle __super specifier" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 1150); | |||
1151 | ||||
1152 | case NestedNameSpecifier::Namespace: | |||
1153 | if (qualifier->getPrefix()) | |||
1154 | mangleUnresolvedPrefix(qualifier->getPrefix(), | |||
1155 | /*recursive*/ true); | |||
1156 | else | |||
1157 | Out << "sr"; | |||
1158 | mangleSourceNameWithAbiTags(qualifier->getAsNamespace()); | |||
1159 | break; | |||
1160 | case NestedNameSpecifier::NamespaceAlias: | |||
1161 | if (qualifier->getPrefix()) | |||
1162 | mangleUnresolvedPrefix(qualifier->getPrefix(), | |||
1163 | /*recursive*/ true); | |||
1164 | else | |||
1165 | Out << "sr"; | |||
1166 | mangleSourceNameWithAbiTags(qualifier->getAsNamespaceAlias()); | |||
1167 | break; | |||
1168 | ||||
1169 | case NestedNameSpecifier::TypeSpec: | |||
1170 | case NestedNameSpecifier::TypeSpecWithTemplate: { | |||
1171 | const Type *type = qualifier->getAsType(); | |||
1172 | ||||
1173 | // We only want to use an unresolved-type encoding if this is one of: | |||
1174 | // - a decltype | |||
1175 | // - a template type parameter | |||
1176 | // - a template template parameter with arguments | |||
1177 | // In all of these cases, we should have no prefix. | |||
1178 | if (qualifier->getPrefix()) { | |||
1179 | mangleUnresolvedPrefix(qualifier->getPrefix(), | |||
1180 | /*recursive*/ true); | |||
1181 | } else { | |||
1182 | // Otherwise, all the cases want this. | |||
1183 | Out << "sr"; | |||
1184 | } | |||
1185 | ||||
1186 | if (mangleUnresolvedTypeOrSimpleId(QualType(type, 0), recursive ? "N" : "")) | |||
1187 | return; | |||
1188 | ||||
1189 | break; | |||
1190 | } | |||
1191 | ||||
1192 | case NestedNameSpecifier::Identifier: | |||
1193 | // Member expressions can have these without prefixes. | |||
1194 | if (qualifier->getPrefix()) | |||
1195 | mangleUnresolvedPrefix(qualifier->getPrefix(), | |||
1196 | /*recursive*/ true); | |||
1197 | else | |||
1198 | Out << "sr"; | |||
1199 | ||||
1200 | mangleSourceName(qualifier->getAsIdentifier()); | |||
1201 | // An Identifier has no type information, so we can't emit abi tags for it. | |||
1202 | break; | |||
1203 | } | |||
1204 | ||||
1205 | // If this was the innermost part of the NNS, and we fell out to | |||
1206 | // here, append an 'E'. | |||
1207 | if (!recursive) | |||
1208 | Out << 'E'; | |||
1209 | } | |||
1210 | ||||
1211 | /// Mangle an unresolved-name, which is generally used for names which | |||
1212 | /// weren't resolved to specific entities. | |||
1213 | void CXXNameMangler::mangleUnresolvedName( | |||
1214 | NestedNameSpecifier *qualifier, DeclarationName name, | |||
1215 | const TemplateArgumentLoc *TemplateArgs, unsigned NumTemplateArgs, | |||
1216 | unsigned knownArity) { | |||
1217 | if (qualifier) mangleUnresolvedPrefix(qualifier); | |||
1218 | switch (name.getNameKind()) { | |||
1219 | // <base-unresolved-name> ::= <simple-id> | |||
1220 | case DeclarationName::Identifier: | |||
1221 | mangleSourceName(name.getAsIdentifierInfo()); | |||
1222 | break; | |||
1223 | // <base-unresolved-name> ::= dn <destructor-name> | |||
1224 | case DeclarationName::CXXDestructorName: | |||
1225 | Out << "dn"; | |||
1226 | mangleUnresolvedTypeOrSimpleId(name.getCXXNameType()); | |||
1227 | break; | |||
1228 | // <base-unresolved-name> ::= on <operator-name> | |||
1229 | case DeclarationName::CXXConversionFunctionName: | |||
1230 | case DeclarationName::CXXLiteralOperatorName: | |||
1231 | case DeclarationName::CXXOperatorName: | |||
1232 | Out << "on"; | |||
1233 | mangleOperatorName(name, knownArity); | |||
1234 | break; | |||
1235 | case DeclarationName::CXXConstructorName: | |||
1236 | llvm_unreachable("Can't mangle a constructor name!")::llvm::llvm_unreachable_internal("Can't mangle a constructor name!" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 1236); | |||
1237 | case DeclarationName::CXXUsingDirective: | |||
1238 | llvm_unreachable("Can't mangle a using directive name!")::llvm::llvm_unreachable_internal("Can't mangle a using directive name!" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 1238); | |||
1239 | case DeclarationName::CXXDeductionGuideName: | |||
1240 | llvm_unreachable("Can't mangle a deduction guide name!")::llvm::llvm_unreachable_internal("Can't mangle a deduction guide name!" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 1240); | |||
1241 | case DeclarationName::ObjCMultiArgSelector: | |||
1242 | case DeclarationName::ObjCOneArgSelector: | |||
1243 | case DeclarationName::ObjCZeroArgSelector: | |||
1244 | 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-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 1244); | |||
1245 | } | |||
1246 | ||||
1247 | // The <simple-id> and on <operator-name> productions end in an optional | |||
1248 | // <template-args>. | |||
1249 | if (TemplateArgs) | |||
1250 | mangleTemplateArgs(TemplateArgs, NumTemplateArgs); | |||
1251 | } | |||
1252 | ||||
1253 | void CXXNameMangler::mangleUnqualifiedName(const NamedDecl *ND, | |||
1254 | DeclarationName Name, | |||
1255 | unsigned KnownArity, | |||
1256 | const AbiTagList *AdditionalAbiTags) { | |||
1257 | unsigned Arity = KnownArity; | |||
1258 | // <unqualified-name> ::= <operator-name> | |||
1259 | // ::= <ctor-dtor-name> | |||
1260 | // ::= <source-name> | |||
1261 | switch (Name.getNameKind()) { | |||
1262 | case DeclarationName::Identifier: { | |||
1263 | const IdentifierInfo *II = Name.getAsIdentifierInfo(); | |||
1264 | ||||
1265 | // We mangle decomposition declarations as the names of their bindings. | |||
1266 | if (auto *DD = dyn_cast<DecompositionDecl>(ND)) { | |||
1267 | // FIXME: Non-standard mangling for decomposition declarations: | |||
1268 | // | |||
1269 | // <unqualified-name> ::= DC <source-name>* E | |||
1270 | // | |||
1271 | // These can never be referenced across translation units, so we do | |||
1272 | // not need a cross-vendor mangling for anything other than demanglers. | |||
1273 | // Proposed on cxx-abi-dev on 2016-08-12 | |||
1274 | Out << "DC"; | |||
1275 | for (auto *BD : DD->bindings()) | |||
1276 | mangleSourceName(BD->getDeclName().getAsIdentifierInfo()); | |||
1277 | Out << 'E'; | |||
1278 | writeAbiTags(ND, AdditionalAbiTags); | |||
1279 | break; | |||
1280 | } | |||
1281 | ||||
1282 | if (II) { | |||
1283 | // Match GCC's naming convention for internal linkage symbols, for | |||
1284 | // symbols that are not actually visible outside of this TU. GCC | |||
1285 | // distinguishes between internal and external linkage symbols in | |||
1286 | // its mangling, to support cases like this that were valid C++ prior | |||
1287 | // to DR426: | |||
1288 | // | |||
1289 | // void test() { extern void foo(); } | |||
1290 | // static void foo(); | |||
1291 | // | |||
1292 | // Don't bother with the L marker for names in anonymous namespaces; the | |||
1293 | // 12_GLOBAL__N_1 mangling is quite sufficient there, and this better | |||
1294 | // matches GCC anyway, because GCC does not treat anonymous namespaces as | |||
1295 | // implying internal linkage. | |||
1296 | if (ND && ND->getFormalLinkage() == InternalLinkage && | |||
1297 | !ND->isExternallyVisible() && | |||
1298 | getEffectiveDeclContext(ND)->isFileContext() && | |||
1299 | !ND->isInAnonymousNamespace()) | |||
1300 | Out << 'L'; | |||
1301 | ||||
1302 | auto *FD = dyn_cast<FunctionDecl>(ND); | |||
1303 | bool IsRegCall = FD && | |||
1304 | FD->getType()->castAs<FunctionType>()->getCallConv() == | |||
1305 | clang::CC_X86RegCall; | |||
1306 | if (IsRegCall) | |||
1307 | mangleRegCallName(II); | |||
1308 | else | |||
1309 | mangleSourceName(II); | |||
1310 | ||||
1311 | writeAbiTags(ND, AdditionalAbiTags); | |||
1312 | break; | |||
1313 | } | |||
1314 | ||||
1315 | // Otherwise, an anonymous entity. We must have a declaration. | |||
1316 | assert(ND && "mangling empty name without declaration")((ND && "mangling empty name without declaration") ? static_cast <void> (0) : __assert_fail ("ND && \"mangling empty name without declaration\"" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 1316, __PRETTY_FUNCTION__)); | |||
1317 | ||||
1318 | if (const NamespaceDecl *NS = dyn_cast<NamespaceDecl>(ND)) { | |||
1319 | if (NS->isAnonymousNamespace()) { | |||
1320 | // This is how gcc mangles these names. | |||
1321 | Out << "12_GLOBAL__N_1"; | |||
1322 | break; | |||
1323 | } | |||
1324 | } | |||
1325 | ||||
1326 | if (const VarDecl *VD = dyn_cast<VarDecl>(ND)) { | |||
1327 | // We must have an anonymous union or struct declaration. | |||
1328 | const RecordDecl *RD = VD->getType()->castAs<RecordType>()->getDecl(); | |||
1329 | ||||
1330 | // Itanium C++ ABI 5.1.2: | |||
1331 | // | |||
1332 | // For the purposes of mangling, the name of an anonymous union is | |||
1333 | // considered to be the name of the first named data member found by a | |||
1334 | // pre-order, depth-first, declaration-order walk of the data members of | |||
1335 | // the anonymous union. If there is no such data member (i.e., if all of | |||
1336 | // the data members in the union are unnamed), then there is no way for | |||
1337 | // a program to refer to the anonymous union, and there is therefore no | |||
1338 | // need to mangle its name. | |||
1339 | assert(RD->isAnonymousStructOrUnion()((RD->isAnonymousStructOrUnion() && "Expected anonymous struct or union!" ) ? static_cast<void> (0) : __assert_fail ("RD->isAnonymousStructOrUnion() && \"Expected anonymous struct or union!\"" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 1340, __PRETTY_FUNCTION__)) | |||
1340 | && "Expected anonymous struct or union!")((RD->isAnonymousStructOrUnion() && "Expected anonymous struct or union!" ) ? static_cast<void> (0) : __assert_fail ("RD->isAnonymousStructOrUnion() && \"Expected anonymous struct or union!\"" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 1340, __PRETTY_FUNCTION__)); | |||
1341 | const FieldDecl *FD = RD->findFirstNamedDataMember(); | |||
1342 | ||||
1343 | // It's actually possible for various reasons for us to get here | |||
1344 | // with an empty anonymous struct / union. Fortunately, it | |||
1345 | // doesn't really matter what name we generate. | |||
1346 | if (!FD) break; | |||
1347 | assert(FD->getIdentifier() && "Data member name isn't an identifier!")((FD->getIdentifier() && "Data member name isn't an identifier!" ) ? static_cast<void> (0) : __assert_fail ("FD->getIdentifier() && \"Data member name isn't an identifier!\"" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 1347, __PRETTY_FUNCTION__)); | |||
1348 | ||||
1349 | mangleSourceName(FD->getIdentifier()); | |||
1350 | // Not emitting abi tags: internal name anyway. | |||
1351 | break; | |||
1352 | } | |||
1353 | ||||
1354 | // Class extensions have no name as a category, and it's possible | |||
1355 | // for them to be the semantic parent of certain declarations | |||
1356 | // (primarily, tag decls defined within declarations). Such | |||
1357 | // declarations will always have internal linkage, so the name | |||
1358 | // doesn't really matter, but we shouldn't crash on them. For | |||
1359 | // safety, just handle all ObjC containers here. | |||
1360 | if (isa<ObjCContainerDecl>(ND)) | |||
1361 | break; | |||
1362 | ||||
1363 | // We must have an anonymous struct. | |||
1364 | const TagDecl *TD = cast<TagDecl>(ND); | |||
1365 | if (const TypedefNameDecl *D = TD->getTypedefNameForAnonDecl()) { | |||
1366 | assert(TD->getDeclContext() == D->getDeclContext() &&((TD->getDeclContext() == D->getDeclContext() && "Typedef should not be in another decl context!") ? static_cast <void> (0) : __assert_fail ("TD->getDeclContext() == D->getDeclContext() && \"Typedef should not be in another decl context!\"" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 1367, __PRETTY_FUNCTION__)) | |||
1367 | "Typedef should not be in another decl context!")((TD->getDeclContext() == D->getDeclContext() && "Typedef should not be in another decl context!") ? static_cast <void> (0) : __assert_fail ("TD->getDeclContext() == D->getDeclContext() && \"Typedef should not be in another decl context!\"" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 1367, __PRETTY_FUNCTION__)); | |||
1368 | assert(D->getDeclName().getAsIdentifierInfo() &&((D->getDeclName().getAsIdentifierInfo() && "Typedef was not named!" ) ? static_cast<void> (0) : __assert_fail ("D->getDeclName().getAsIdentifierInfo() && \"Typedef was not named!\"" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 1369, __PRETTY_FUNCTION__)) | |||
1369 | "Typedef was not named!")((D->getDeclName().getAsIdentifierInfo() && "Typedef was not named!" ) ? static_cast<void> (0) : __assert_fail ("D->getDeclName().getAsIdentifierInfo() && \"Typedef was not named!\"" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 1369, __PRETTY_FUNCTION__)); | |||
1370 | mangleSourceName(D->getDeclName().getAsIdentifierInfo()); | |||
1371 | assert(!AdditionalAbiTags && "Type cannot have additional abi tags")((!AdditionalAbiTags && "Type cannot have additional abi tags" ) ? static_cast<void> (0) : __assert_fail ("!AdditionalAbiTags && \"Type cannot have additional abi tags\"" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 1371, __PRETTY_FUNCTION__)); | |||
1372 | // Explicit abi tags are still possible; take from underlying type, not | |||
1373 | // from typedef. | |||
1374 | writeAbiTags(TD, nullptr); | |||
1375 | break; | |||
1376 | } | |||
1377 | ||||
1378 | // <unnamed-type-name> ::= <closure-type-name> | |||
1379 | // | |||
1380 | // <closure-type-name> ::= Ul <lambda-sig> E [ <nonnegative number> ] _ | |||
1381 | // <lambda-sig> ::= <template-param-decl>* <parameter-type>+ | |||
1382 | // # Parameter types or 'v' for 'void'. | |||
1383 | if (const CXXRecordDecl *Record = dyn_cast<CXXRecordDecl>(TD)) { | |||
1384 | if (Record->isLambda() && Record->getLambdaManglingNumber()) { | |||
1385 | assert(!AdditionalAbiTags &&((!AdditionalAbiTags && "Lambda type cannot have additional abi tags" ) ? static_cast<void> (0) : __assert_fail ("!AdditionalAbiTags && \"Lambda type cannot have additional abi tags\"" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 1386, __PRETTY_FUNCTION__)) | |||
1386 | "Lambda type cannot have additional abi tags")((!AdditionalAbiTags && "Lambda type cannot have additional abi tags" ) ? static_cast<void> (0) : __assert_fail ("!AdditionalAbiTags && \"Lambda type cannot have additional abi tags\"" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 1386, __PRETTY_FUNCTION__)); | |||
1387 | mangleLambda(Record); | |||
1388 | break; | |||
1389 | } | |||
1390 | } | |||
1391 | ||||
1392 | if (TD->isExternallyVisible()) { | |||
1393 | unsigned UnnamedMangle = getASTContext().getManglingNumber(TD); | |||
1394 | Out << "Ut"; | |||
1395 | if (UnnamedMangle > 1) | |||
1396 | Out << UnnamedMangle - 2; | |||
1397 | Out << '_'; | |||
1398 | writeAbiTags(TD, AdditionalAbiTags); | |||
1399 | break; | |||
1400 | } | |||
1401 | ||||
1402 | // Get a unique id for the anonymous struct. If it is not a real output | |||
1403 | // ID doesn't matter so use fake one. | |||
1404 | unsigned AnonStructId = NullOut ? 0 : Context.getAnonymousStructId(TD); | |||
1405 | ||||
1406 | // Mangle it as a source name in the form | |||
1407 | // [n] $_<id> | |||
1408 | // where n is the length of the string. | |||
1409 | SmallString<8> Str; | |||
1410 | Str += "$_"; | |||
1411 | Str += llvm::utostr(AnonStructId); | |||
1412 | ||||
1413 | Out << Str.size(); | |||
1414 | Out << Str; | |||
1415 | break; | |||
1416 | } | |||
1417 | ||||
1418 | case DeclarationName::ObjCZeroArgSelector: | |||
1419 | case DeclarationName::ObjCOneArgSelector: | |||
1420 | case DeclarationName::ObjCMultiArgSelector: | |||
1421 | 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-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 1421); | |||
1422 | ||||
1423 | case DeclarationName::CXXConstructorName: { | |||
1424 | const CXXRecordDecl *InheritedFrom = nullptr; | |||
1425 | const TemplateArgumentList *InheritedTemplateArgs = nullptr; | |||
1426 | if (auto Inherited = | |||
1427 | cast<CXXConstructorDecl>(ND)->getInheritedConstructor()) { | |||
1428 | InheritedFrom = Inherited.getConstructor()->getParent(); | |||
1429 | InheritedTemplateArgs = | |||
1430 | Inherited.getConstructor()->getTemplateSpecializationArgs(); | |||
1431 | } | |||
1432 | ||||
1433 | if (ND == Structor) | |||
1434 | // If the named decl is the C++ constructor we're mangling, use the type | |||
1435 | // we were given. | |||
1436 | mangleCXXCtorType(static_cast<CXXCtorType>(StructorType), InheritedFrom); | |||
1437 | else | |||
1438 | // Otherwise, use the complete constructor name. This is relevant if a | |||
1439 | // class with a constructor is declared within a constructor. | |||
1440 | mangleCXXCtorType(Ctor_Complete, InheritedFrom); | |||
1441 | ||||
1442 | // FIXME: The template arguments are part of the enclosing prefix or | |||
1443 | // nested-name, but it's more convenient to mangle them here. | |||
1444 | if (InheritedTemplateArgs) | |||
1445 | mangleTemplateArgs(*InheritedTemplateArgs); | |||
1446 | ||||
1447 | writeAbiTags(ND, AdditionalAbiTags); | |||
1448 | break; | |||
1449 | } | |||
1450 | ||||
1451 | case DeclarationName::CXXDestructorName: | |||
1452 | if (ND == Structor) | |||
1453 | // If the named decl is the C++ destructor we're mangling, use the type we | |||
1454 | // were given. | |||
1455 | mangleCXXDtorType(static_cast<CXXDtorType>(StructorType)); | |||
1456 | else | |||
1457 | // Otherwise, use the complete destructor name. This is relevant if a | |||
1458 | // class with a destructor is declared within a destructor. | |||
1459 | mangleCXXDtorType(Dtor_Complete); | |||
1460 | writeAbiTags(ND, AdditionalAbiTags); | |||
1461 | break; | |||
1462 | ||||
1463 | case DeclarationName::CXXOperatorName: | |||
1464 | if (ND && Arity == UnknownArity) { | |||
1465 | Arity = cast<FunctionDecl>(ND)->getNumParams(); | |||
1466 | ||||
1467 | // If we have a member function, we need to include the 'this' pointer. | |||
1468 | if (const auto *MD = dyn_cast<CXXMethodDecl>(ND)) | |||
1469 | if (!MD->isStatic()) | |||
1470 | Arity++; | |||
1471 | } | |||
1472 | LLVM_FALLTHROUGH[[gnu::fallthrough]]; | |||
1473 | case DeclarationName::CXXConversionFunctionName: | |||
1474 | case DeclarationName::CXXLiteralOperatorName: | |||
1475 | mangleOperatorName(Name, Arity); | |||
1476 | writeAbiTags(ND, AdditionalAbiTags); | |||
1477 | break; | |||
1478 | ||||
1479 | case DeclarationName::CXXDeductionGuideName: | |||
1480 | llvm_unreachable("Can't mangle a deduction guide name!")::llvm::llvm_unreachable_internal("Can't mangle a deduction guide name!" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 1480); | |||
1481 | ||||
1482 | case DeclarationName::CXXUsingDirective: | |||
1483 | llvm_unreachable("Can't mangle a using directive name!")::llvm::llvm_unreachable_internal("Can't mangle a using directive name!" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 1483); | |||
1484 | } | |||
1485 | } | |||
1486 | ||||
1487 | void CXXNameMangler::mangleRegCallName(const IdentifierInfo *II) { | |||
1488 | // <source-name> ::= <positive length number> __regcall3__ <identifier> | |||
1489 | // <number> ::= [n] <non-negative decimal integer> | |||
1490 | // <identifier> ::= <unqualified source code identifier> | |||
1491 | Out << II->getLength() + sizeof("__regcall3__") - 1 << "__regcall3__" | |||
1492 | << II->getName(); | |||
1493 | } | |||
1494 | ||||
1495 | void CXXNameMangler::mangleSourceName(const IdentifierInfo *II) { | |||
1496 | // <source-name> ::= <positive length number> <identifier> | |||
1497 | // <number> ::= [n] <non-negative decimal integer> | |||
1498 | // <identifier> ::= <unqualified source code identifier> | |||
1499 | Out << II->getLength() << II->getName(); | |||
1500 | } | |||
1501 | ||||
1502 | void CXXNameMangler::mangleNestedName(const NamedDecl *ND, | |||
1503 | const DeclContext *DC, | |||
1504 | const AbiTagList *AdditionalAbiTags, | |||
1505 | bool NoFunction) { | |||
1506 | // <nested-name> | |||
1507 | // ::= N [<CV-qualifiers>] [<ref-qualifier>] <prefix> <unqualified-name> E | |||
1508 | // ::= N [<CV-qualifiers>] [<ref-qualifier>] <template-prefix> | |||
1509 | // <template-args> E | |||
1510 | ||||
1511 | Out << 'N'; | |||
1512 | if (const CXXMethodDecl *Method = dyn_cast<CXXMethodDecl>(ND)) { | |||
1513 | Qualifiers MethodQuals = Method->getMethodQualifiers(); | |||
1514 | // We do not consider restrict a distinguishing attribute for overloading | |||
1515 | // purposes so we must not mangle it. | |||
1516 | MethodQuals.removeRestrict(); | |||
1517 | mangleQualifiers(MethodQuals); | |||
1518 | mangleRefQualifier(Method->getRefQualifier()); | |||
1519 | } | |||
1520 | ||||
1521 | // Check if we have a template. | |||
1522 | const TemplateArgumentList *TemplateArgs = nullptr; | |||
1523 | if (const TemplateDecl *TD = isTemplate(ND, TemplateArgs)) { | |||
1524 | mangleTemplatePrefix(TD, NoFunction); | |||
1525 | mangleTemplateArgs(*TemplateArgs); | |||
1526 | } | |||
1527 | else { | |||
1528 | manglePrefix(DC, NoFunction); | |||
1529 | mangleUnqualifiedName(ND, AdditionalAbiTags); | |||
1530 | } | |||
1531 | ||||
1532 | Out << 'E'; | |||
1533 | } | |||
1534 | void CXXNameMangler::mangleNestedName(const TemplateDecl *TD, | |||
1535 | const TemplateArgument *TemplateArgs, | |||
1536 | unsigned NumTemplateArgs) { | |||
1537 | // <nested-name> ::= N [<CV-qualifiers>] <template-prefix> <template-args> E | |||
1538 | ||||
1539 | Out << 'N'; | |||
1540 | ||||
1541 | mangleTemplatePrefix(TD); | |||
1542 | mangleTemplateArgs(TemplateArgs, NumTemplateArgs); | |||
1543 | ||||
1544 | Out << 'E'; | |||
1545 | } | |||
1546 | ||||
1547 | void CXXNameMangler::mangleLocalName(const Decl *D, | |||
1548 | const AbiTagList *AdditionalAbiTags) { | |||
1549 | // <local-name> := Z <function encoding> E <entity name> [<discriminator>] | |||
1550 | // := Z <function encoding> E s [<discriminator>] | |||
1551 | // <local-name> := Z <function encoding> E d [ <parameter number> ] | |||
1552 | // _ <entity name> | |||
1553 | // <discriminator> := _ <non-negative number> | |||
1554 | assert(isa<NamedDecl>(D) || isa<BlockDecl>(D))((isa<NamedDecl>(D) || isa<BlockDecl>(D)) ? static_cast <void> (0) : __assert_fail ("isa<NamedDecl>(D) || isa<BlockDecl>(D)" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 1554, __PRETTY_FUNCTION__)); | |||
1555 | const RecordDecl *RD = GetLocalClassDecl(D); | |||
1556 | const DeclContext *DC = getEffectiveDeclContext(RD ? RD : D); | |||
1557 | ||||
1558 | Out << 'Z'; | |||
1559 | ||||
1560 | { | |||
1561 | AbiTagState LocalAbiTags(AbiTags); | |||
1562 | ||||
1563 | if (const ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(DC)) | |||
1564 | mangleObjCMethodName(MD); | |||
1565 | else if (const BlockDecl *BD = dyn_cast<BlockDecl>(DC)) | |||
1566 | mangleBlockForPrefix(BD); | |||
1567 | else | |||
1568 | mangleFunctionEncoding(cast<FunctionDecl>(DC)); | |||
1569 | ||||
1570 | // Implicit ABI tags (from namespace) are not available in the following | |||
1571 | // entity; reset to actually emitted tags, which are available. | |||
1572 | LocalAbiTags.setUsedAbiTags(LocalAbiTags.getEmittedAbiTags()); | |||
1573 | } | |||
1574 | ||||
1575 | Out << 'E'; | |||
1576 | ||||
1577 | // GCC 5.3.0 doesn't emit derived ABI tags for local names but that seems to | |||
1578 | // be a bug that is fixed in trunk. | |||
1579 | ||||
1580 | if (RD) { | |||
1581 | // The parameter number is omitted for the last parameter, 0 for the | |||
1582 | // second-to-last parameter, 1 for the third-to-last parameter, etc. The | |||
1583 | // <entity name> will of course contain a <closure-type-name>: Its | |||
1584 | // numbering will be local to the particular argument in which it appears | |||
1585 | // -- other default arguments do not affect its encoding. | |||
1586 | const CXXRecordDecl *CXXRD = dyn_cast<CXXRecordDecl>(RD); | |||
1587 | if (CXXRD && CXXRD->isLambda()) { | |||
1588 | if (const ParmVarDecl *Parm | |||
1589 | = dyn_cast_or_null<ParmVarDecl>(CXXRD->getLambdaContextDecl())) { | |||
1590 | if (const FunctionDecl *Func | |||
1591 | = dyn_cast<FunctionDecl>(Parm->getDeclContext())) { | |||
1592 | Out << 'd'; | |||
1593 | unsigned Num = Func->getNumParams() - Parm->getFunctionScopeIndex(); | |||
1594 | if (Num > 1) | |||
1595 | mangleNumber(Num - 2); | |||
1596 | Out << '_'; | |||
1597 | } | |||
1598 | } | |||
1599 | } | |||
1600 | ||||
1601 | // Mangle the name relative to the closest enclosing function. | |||
1602 | // equality ok because RD derived from ND above | |||
1603 | if (D == RD) { | |||
1604 | mangleUnqualifiedName(RD, AdditionalAbiTags); | |||
1605 | } else if (const BlockDecl *BD = dyn_cast<BlockDecl>(D)) { | |||
1606 | manglePrefix(getEffectiveDeclContext(BD), true /*NoFunction*/); | |||
1607 | assert(!AdditionalAbiTags && "Block cannot have additional abi tags")((!AdditionalAbiTags && "Block cannot have additional abi tags" ) ? static_cast<void> (0) : __assert_fail ("!AdditionalAbiTags && \"Block cannot have additional abi tags\"" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 1607, __PRETTY_FUNCTION__)); | |||
1608 | mangleUnqualifiedBlock(BD); | |||
1609 | } else { | |||
1610 | const NamedDecl *ND = cast<NamedDecl>(D); | |||
1611 | mangleNestedName(ND, getEffectiveDeclContext(ND), AdditionalAbiTags, | |||
1612 | true /*NoFunction*/); | |||
1613 | } | |||
1614 | } else if (const BlockDecl *BD = dyn_cast<BlockDecl>(D)) { | |||
1615 | // Mangle a block in a default parameter; see above explanation for | |||
1616 | // lambdas. | |||
1617 | if (const ParmVarDecl *Parm | |||
1618 | = dyn_cast_or_null<ParmVarDecl>(BD->getBlockManglingContextDecl())) { | |||
1619 | if (const FunctionDecl *Func | |||
1620 | = dyn_cast<FunctionDecl>(Parm->getDeclContext())) { | |||
1621 | Out << 'd'; | |||
1622 | unsigned Num = Func->getNumParams() - Parm->getFunctionScopeIndex(); | |||
1623 | if (Num > 1) | |||
1624 | mangleNumber(Num - 2); | |||
1625 | Out << '_'; | |||
1626 | } | |||
1627 | } | |||
1628 | ||||
1629 | assert(!AdditionalAbiTags && "Block cannot have additional abi tags")((!AdditionalAbiTags && "Block cannot have additional abi tags" ) ? static_cast<void> (0) : __assert_fail ("!AdditionalAbiTags && \"Block cannot have additional abi tags\"" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 1629, __PRETTY_FUNCTION__)); | |||
1630 | mangleUnqualifiedBlock(BD); | |||
1631 | } else { | |||
1632 | mangleUnqualifiedName(cast<NamedDecl>(D), AdditionalAbiTags); | |||
1633 | } | |||
1634 | ||||
1635 | if (const NamedDecl *ND = dyn_cast<NamedDecl>(RD ? RD : D)) { | |||
1636 | unsigned disc; | |||
1637 | if (Context.getNextDiscriminator(ND, disc)) { | |||
1638 | if (disc < 10) | |||
1639 | Out << '_' << disc; | |||
1640 | else | |||
1641 | Out << "__" << disc << '_'; | |||
1642 | } | |||
1643 | } | |||
1644 | } | |||
1645 | ||||
1646 | void CXXNameMangler::mangleBlockForPrefix(const BlockDecl *Block) { | |||
1647 | if (GetLocalClassDecl(Block)) { | |||
1648 | mangleLocalName(Block, /* AdditionalAbiTags */ nullptr); | |||
1649 | return; | |||
1650 | } | |||
1651 | const DeclContext *DC = getEffectiveDeclContext(Block); | |||
1652 | if (isLocalContainerContext(DC)) { | |||
1653 | mangleLocalName(Block, /* AdditionalAbiTags */ nullptr); | |||
1654 | return; | |||
1655 | } | |||
1656 | manglePrefix(getEffectiveDeclContext(Block)); | |||
1657 | mangleUnqualifiedBlock(Block); | |||
1658 | } | |||
1659 | ||||
1660 | void CXXNameMangler::mangleUnqualifiedBlock(const BlockDecl *Block) { | |||
1661 | if (Decl *Context = Block->getBlockManglingContextDecl()) { | |||
1662 | if ((isa<VarDecl>(Context) || isa<FieldDecl>(Context)) && | |||
1663 | Context->getDeclContext()->isRecord()) { | |||
1664 | const auto *ND = cast<NamedDecl>(Context); | |||
1665 | if (ND->getIdentifier()) { | |||
1666 | mangleSourceNameWithAbiTags(ND); | |||
1667 | Out << 'M'; | |||
1668 | } | |||
1669 | } | |||
1670 | } | |||
1671 | ||||
1672 | // If we have a block mangling number, use it. | |||
1673 | unsigned Number = Block->getBlockManglingNumber(); | |||
1674 | // Otherwise, just make up a number. It doesn't matter what it is because | |||
1675 | // the symbol in question isn't externally visible. | |||
1676 | if (!Number) | |||
1677 | Number = Context.getBlockId(Block, false); | |||
1678 | else { | |||
1679 | // Stored mangling numbers are 1-based. | |||
1680 | --Number; | |||
1681 | } | |||
1682 | Out << "Ub"; | |||
1683 | if (Number > 0) | |||
1684 | Out << Number - 1; | |||
1685 | Out << '_'; | |||
1686 | } | |||
1687 | ||||
1688 | // <template-param-decl> | |||
1689 | // ::= Ty # template type parameter | |||
1690 | // ::= Tn <type> # template non-type parameter | |||
1691 | // ::= Tt <template-param-decl>* E # template template parameter | |||
1692 | // ::= Tp <template-param-decl> # template parameter pack | |||
1693 | void CXXNameMangler::mangleTemplateParamDecl(const NamedDecl *Decl) { | |||
1694 | if (auto *Ty = dyn_cast<TemplateTypeParmDecl>(Decl)) { | |||
1695 | if (Ty->isParameterPack()) | |||
1696 | Out << "Tp"; | |||
1697 | Out << "Ty"; | |||
1698 | } else if (auto *Tn = dyn_cast<NonTypeTemplateParmDecl>(Decl)) { | |||
1699 | if (Tn->isExpandedParameterPack()) { | |||
1700 | for (unsigned I = 0, N = Tn->getNumExpansionTypes(); I != N; ++I) { | |||
1701 | Out << "Tn"; | |||
1702 | mangleType(Tn->getExpansionType(I)); | |||
1703 | } | |||
1704 | } else { | |||
1705 | QualType T = Tn->getType(); | |||
1706 | if (Tn->isParameterPack()) { | |||
1707 | Out << "Tp"; | |||
1708 | if (auto *PackExpansion = T->getAs<PackExpansionType>()) | |||
1709 | T = PackExpansion->getPattern(); | |||
1710 | } | |||
1711 | Out << "Tn"; | |||
1712 | mangleType(T); | |||
1713 | } | |||
1714 | } else if (auto *Tt = dyn_cast<TemplateTemplateParmDecl>(Decl)) { | |||
1715 | if (Tt->isExpandedParameterPack()) { | |||
1716 | for (unsigned I = 0, N = Tt->getNumExpansionTemplateParameters(); I != N; | |||
1717 | ++I) { | |||
1718 | Out << "Tt"; | |||
1719 | for (auto *Param : *Tt->getExpansionTemplateParameters(I)) | |||
1720 | mangleTemplateParamDecl(Param); | |||
1721 | Out << "E"; | |||
1722 | } | |||
1723 | } else { | |||
1724 | if (Tt->isParameterPack()) | |||
1725 | Out << "Tp"; | |||
1726 | Out << "Tt"; | |||
1727 | for (auto *Param : *Tt->getTemplateParameters()) | |||
1728 | mangleTemplateParamDecl(Param); | |||
1729 | Out << "E"; | |||
1730 | } | |||
1731 | } | |||
1732 | } | |||
1733 | ||||
1734 | void CXXNameMangler::mangleLambda(const CXXRecordDecl *Lambda) { | |||
1735 | // If the context of a closure type is an initializer for a class member | |||
1736 | // (static or nonstatic), it is encoded in a qualified name with a final | |||
1737 | // <prefix> of the form: | |||
1738 | // | |||
1739 | // <data-member-prefix> := <member source-name> M | |||
1740 | // | |||
1741 | // Technically, the data-member-prefix is part of the <prefix>. However, | |||
1742 | // since a closure type will always be mangled with a prefix, it's easier | |||
1743 | // to emit that last part of the prefix here. | |||
1744 | if (Decl *Context = Lambda->getLambdaContextDecl()) { | |||
1745 | if ((isa<VarDecl>(Context) || isa<FieldDecl>(Context)) && | |||
1746 | !isa<ParmVarDecl>(Context)) { | |||
1747 | // FIXME: 'inline auto [a, b] = []{ return ... };' does not get a | |||
1748 | // reasonable mangling here. | |||
1749 | if (const IdentifierInfo *Name | |||
1750 | = cast<NamedDecl>(Context)->getIdentifier()) { | |||
1751 | mangleSourceName(Name); | |||
1752 | const TemplateArgumentList *TemplateArgs = nullptr; | |||
1753 | if (isTemplate(cast<NamedDecl>(Context), TemplateArgs)) | |||
1754 | mangleTemplateArgs(*TemplateArgs); | |||
1755 | Out << 'M'; | |||
1756 | } | |||
1757 | } | |||
1758 | } | |||
1759 | ||||
1760 | Out << "Ul"; | |||
1761 | mangleLambdaSig(Lambda); | |||
1762 | Out << "E"; | |||
1763 | ||||
1764 | // The number is omitted for the first closure type with a given | |||
1765 | // <lambda-sig> in a given context; it is n-2 for the nth closure type | |||
1766 | // (in lexical order) with that same <lambda-sig> and context. | |||
1767 | // | |||
1768 | // The AST keeps track of the number for us. | |||
1769 | unsigned Number = Lambda->getLambdaManglingNumber(); | |||
1770 | assert(Number > 0 && "Lambda should be mangled as an unnamed class")((Number > 0 && "Lambda should be mangled as an unnamed class" ) ? static_cast<void> (0) : __assert_fail ("Number > 0 && \"Lambda should be mangled as an unnamed class\"" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 1770, __PRETTY_FUNCTION__)); | |||
1771 | if (Number > 1) | |||
1772 | mangleNumber(Number - 2); | |||
1773 | Out << '_'; | |||
1774 | } | |||
1775 | ||||
1776 | void CXXNameMangler::mangleLambdaSig(const CXXRecordDecl *Lambda) { | |||
1777 | for (auto *D : Lambda->getLambdaExplicitTemplateParameters()) | |||
1778 | mangleTemplateParamDecl(D); | |||
1779 | const FunctionProtoType *Proto = Lambda->getLambdaTypeInfo()->getType()-> | |||
1780 | getAs<FunctionProtoType>(); | |||
1781 | mangleBareFunctionType(Proto, /*MangleReturnType=*/false, | |||
1782 | Lambda->getLambdaStaticInvoker()); | |||
1783 | } | |||
1784 | ||||
1785 | void CXXNameMangler::manglePrefix(NestedNameSpecifier *qualifier) { | |||
1786 | switch (qualifier->getKind()) { | |||
1787 | case NestedNameSpecifier::Global: | |||
1788 | // nothing | |||
1789 | return; | |||
1790 | ||||
1791 | case NestedNameSpecifier::Super: | |||
1792 | llvm_unreachable("Can't mangle __super specifier")::llvm::llvm_unreachable_internal("Can't mangle __super specifier" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 1792); | |||
1793 | ||||
1794 | case NestedNameSpecifier::Namespace: | |||
1795 | mangleName(qualifier->getAsNamespace()); | |||
1796 | return; | |||
1797 | ||||
1798 | case NestedNameSpecifier::NamespaceAlias: | |||
1799 | mangleName(qualifier->getAsNamespaceAlias()->getNamespace()); | |||
1800 | return; | |||
1801 | ||||
1802 | case NestedNameSpecifier::TypeSpec: | |||
1803 | case NestedNameSpecifier::TypeSpecWithTemplate: | |||
1804 | manglePrefix(QualType(qualifier->getAsType(), 0)); | |||
1805 | return; | |||
1806 | ||||
1807 | case NestedNameSpecifier::Identifier: | |||
1808 | // Member expressions can have these without prefixes, but that | |||
1809 | // should end up in mangleUnresolvedPrefix instead. | |||
1810 | assert(qualifier->getPrefix())((qualifier->getPrefix()) ? static_cast<void> (0) : __assert_fail ("qualifier->getPrefix()", "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 1810, __PRETTY_FUNCTION__)); | |||
1811 | manglePrefix(qualifier->getPrefix()); | |||
1812 | ||||
1813 | mangleSourceName(qualifier->getAsIdentifier()); | |||
1814 | return; | |||
1815 | } | |||
1816 | ||||
1817 | llvm_unreachable("unexpected nested name specifier")::llvm::llvm_unreachable_internal("unexpected nested name specifier" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 1817); | |||
1818 | } | |||
1819 | ||||
1820 | void CXXNameMangler::manglePrefix(const DeclContext *DC, bool NoFunction) { | |||
1821 | // <prefix> ::= <prefix> <unqualified-name> | |||
1822 | // ::= <template-prefix> <template-args> | |||
1823 | // ::= <template-param> | |||
1824 | // ::= # empty | |||
1825 | // ::= <substitution> | |||
1826 | ||||
1827 | DC = IgnoreLinkageSpecDecls(DC); | |||
1828 | ||||
1829 | if (DC->isTranslationUnit()) | |||
1830 | return; | |||
1831 | ||||
1832 | if (NoFunction && isLocalContainerContext(DC)) | |||
1833 | return; | |||
1834 | ||||
1835 | assert(!isLocalContainerContext(DC))((!isLocalContainerContext(DC)) ? static_cast<void> (0) : __assert_fail ("!isLocalContainerContext(DC)", "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 1835, __PRETTY_FUNCTION__)); | |||
1836 | ||||
1837 | const NamedDecl *ND = cast<NamedDecl>(DC); | |||
1838 | if (mangleSubstitution(ND)) | |||
1839 | return; | |||
1840 | ||||
1841 | // Check if we have a template. | |||
1842 | const TemplateArgumentList *TemplateArgs = nullptr; | |||
1843 | if (const TemplateDecl *TD = isTemplate(ND, TemplateArgs)) { | |||
1844 | mangleTemplatePrefix(TD); | |||
1845 | mangleTemplateArgs(*TemplateArgs); | |||
1846 | } else { | |||
1847 | manglePrefix(getEffectiveDeclContext(ND), NoFunction); | |||
1848 | mangleUnqualifiedName(ND, nullptr); | |||
1849 | } | |||
1850 | ||||
1851 | addSubstitution(ND); | |||
1852 | } | |||
1853 | ||||
1854 | void CXXNameMangler::mangleTemplatePrefix(TemplateName Template) { | |||
1855 | // <template-prefix> ::= <prefix> <template unqualified-name> | |||
1856 | // ::= <template-param> | |||
1857 | // ::= <substitution> | |||
1858 | if (TemplateDecl *TD = Template.getAsTemplateDecl()) | |||
1859 | return mangleTemplatePrefix(TD); | |||
1860 | ||||
1861 | if (QualifiedTemplateName *Qualified = Template.getAsQualifiedTemplateName()) | |||
1862 | manglePrefix(Qualified->getQualifier()); | |||
1863 | ||||
1864 | if (OverloadedTemplateStorage *Overloaded | |||
1865 | = Template.getAsOverloadedTemplate()) { | |||
1866 | mangleUnqualifiedName(nullptr, (*Overloaded->begin())->getDeclName(), | |||
1867 | UnknownArity, nullptr); | |||
1868 | return; | |||
1869 | } | |||
1870 | ||||
1871 | DependentTemplateName *Dependent = Template.getAsDependentTemplateName(); | |||
1872 | assert(Dependent && "Unknown template name kind?")((Dependent && "Unknown template name kind?") ? static_cast <void> (0) : __assert_fail ("Dependent && \"Unknown template name kind?\"" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 1872, __PRETTY_FUNCTION__)); | |||
1873 | if (NestedNameSpecifier *Qualifier = Dependent->getQualifier()) | |||
1874 | manglePrefix(Qualifier); | |||
1875 | mangleUnscopedTemplateName(Template, /* AdditionalAbiTags */ nullptr); | |||
1876 | } | |||
1877 | ||||
1878 | void CXXNameMangler::mangleTemplatePrefix(const TemplateDecl *ND, | |||
1879 | bool NoFunction) { | |||
1880 | // <template-prefix> ::= <prefix> <template unqualified-name> | |||
1881 | // ::= <template-param> | |||
1882 | // ::= <substitution> | |||
1883 | // <template-template-param> ::= <template-param> | |||
1884 | // <substitution> | |||
1885 | ||||
1886 | if (mangleSubstitution(ND)) | |||
1887 | return; | |||
1888 | ||||
1889 | // <template-template-param> ::= <template-param> | |||
1890 | if (const auto *TTP = dyn_cast<TemplateTemplateParmDecl>(ND)) { | |||
1891 | mangleTemplateParameter(TTP->getDepth(), TTP->getIndex()); | |||
1892 | } else { | |||
1893 | manglePrefix(getEffectiveDeclContext(ND), NoFunction); | |||
1894 | if (isa<BuiltinTemplateDecl>(ND) || isa<ConceptDecl>(ND)) | |||
1895 | mangleUnqualifiedName(ND, nullptr); | |||
1896 | else | |||
1897 | mangleUnqualifiedName(ND->getTemplatedDecl(), nullptr); | |||
1898 | } | |||
1899 | ||||
1900 | addSubstitution(ND); | |||
1901 | } | |||
1902 | ||||
1903 | /// Mangles a template name under the production <type>. Required for | |||
1904 | /// template template arguments. | |||
1905 | /// <type> ::= <class-enum-type> | |||
1906 | /// ::= <template-param> | |||
1907 | /// ::= <substitution> | |||
1908 | void CXXNameMangler::mangleType(TemplateName TN) { | |||
1909 | if (mangleSubstitution(TN)) | |||
1910 | return; | |||
1911 | ||||
1912 | TemplateDecl *TD = nullptr; | |||
1913 | ||||
1914 | switch (TN.getKind()) { | |||
1915 | case TemplateName::QualifiedTemplate: | |||
1916 | TD = TN.getAsQualifiedTemplateName()->getTemplateDecl(); | |||
1917 | goto HaveDecl; | |||
1918 | ||||
1919 | case TemplateName::Template: | |||
1920 | TD = TN.getAsTemplateDecl(); | |||
1921 | goto HaveDecl; | |||
1922 | ||||
1923 | HaveDecl: | |||
1924 | if (auto *TTP = dyn_cast<TemplateTemplateParmDecl>(TD)) | |||
1925 | mangleTemplateParameter(TTP->getDepth(), TTP->getIndex()); | |||
1926 | else | |||
1927 | mangleName(TD); | |||
1928 | break; | |||
1929 | ||||
1930 | case TemplateName::OverloadedTemplate: | |||
1931 | case TemplateName::AssumedTemplate: | |||
1932 | 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-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 1932); | |||
1933 | ||||
1934 | case TemplateName::DependentTemplate: { | |||
1935 | const DependentTemplateName *Dependent = TN.getAsDependentTemplateName(); | |||
1936 | assert(Dependent->isIdentifier())((Dependent->isIdentifier()) ? static_cast<void> (0) : __assert_fail ("Dependent->isIdentifier()", "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 1936, __PRETTY_FUNCTION__)); | |||
1937 | ||||
1938 | // <class-enum-type> ::= <name> | |||
1939 | // <name> ::= <nested-name> | |||
1940 | mangleUnresolvedPrefix(Dependent->getQualifier()); | |||
1941 | mangleSourceName(Dependent->getIdentifier()); | |||
1942 | break; | |||
1943 | } | |||
1944 | ||||
1945 | case TemplateName::SubstTemplateTemplateParm: { | |||
1946 | // Substituted template parameters are mangled as the substituted | |||
1947 | // template. This will check for the substitution twice, which is | |||
1948 | // fine, but we have to return early so that we don't try to *add* | |||
1949 | // the substitution twice. | |||
1950 | SubstTemplateTemplateParmStorage *subst | |||
1951 | = TN.getAsSubstTemplateTemplateParm(); | |||
1952 | mangleType(subst->getReplacement()); | |||
1953 | return; | |||
1954 | } | |||
1955 | ||||
1956 | case TemplateName::SubstTemplateTemplateParmPack: { | |||
1957 | // FIXME: not clear how to mangle this! | |||
1958 | // template <template <class> class T...> class A { | |||
1959 | // template <template <class> class U...> void foo(B<T,U> x...); | |||
1960 | // }; | |||
1961 | Out << "_SUBSTPACK_"; | |||
1962 | break; | |||
1963 | } | |||
1964 | } | |||
1965 | ||||
1966 | addSubstitution(TN); | |||
1967 | } | |||
1968 | ||||
1969 | bool CXXNameMangler::mangleUnresolvedTypeOrSimpleId(QualType Ty, | |||
1970 | StringRef Prefix) { | |||
1971 | // Only certain other types are valid as prefixes; enumerate them. | |||
1972 | switch (Ty->getTypeClass()) { | |||
1973 | case Type::Builtin: | |||
1974 | case Type::Complex: | |||
1975 | case Type::Adjusted: | |||
1976 | case Type::Decayed: | |||
1977 | case Type::Pointer: | |||
1978 | case Type::BlockPointer: | |||
1979 | case Type::LValueReference: | |||
1980 | case Type::RValueReference: | |||
1981 | case Type::MemberPointer: | |||
1982 | case Type::ConstantArray: | |||
1983 | case Type::IncompleteArray: | |||
1984 | case Type::VariableArray: | |||
1985 | case Type::DependentSizedArray: | |||
1986 | case Type::DependentAddressSpace: | |||
1987 | case Type::DependentVector: | |||
1988 | case Type::DependentSizedExtVector: | |||
1989 | case Type::Vector: | |||
1990 | case Type::ExtVector: | |||
1991 | case Type::FunctionProto: | |||
1992 | case Type::FunctionNoProto: | |||
1993 | case Type::Paren: | |||
1994 | case Type::Attributed: | |||
1995 | case Type::Auto: | |||
1996 | case Type::DeducedTemplateSpecialization: | |||
1997 | case Type::PackExpansion: | |||
1998 | case Type::ObjCObject: | |||
1999 | case Type::ObjCInterface: | |||
2000 | case Type::ObjCObjectPointer: | |||
2001 | case Type::ObjCTypeParam: | |||
2002 | case Type::Atomic: | |||
2003 | case Type::Pipe: | |||
2004 | case Type::MacroQualified: | |||
2005 | 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-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 2005); | |||
2006 | ||||
2007 | case Type::SubstTemplateTypeParmPack: | |||
2008 | // FIXME: not clear how to mangle this! | |||
2009 | // template <class T...> class A { | |||
2010 | // template <class U...> void foo(decltype(T::foo(U())) x...); | |||
2011 | // }; | |||
2012 | Out << "_SUBSTPACK_"; | |||
2013 | break; | |||
2014 | ||||
2015 | // <unresolved-type> ::= <template-param> | |||
2016 | // ::= <decltype> | |||
2017 | // ::= <template-template-param> <template-args> | |||
2018 | // (this last is not official yet) | |||
2019 | case Type::TypeOfExpr: | |||
2020 | case Type::TypeOf: | |||
2021 | case Type::Decltype: | |||
2022 | case Type::TemplateTypeParm: | |||
2023 | case Type::UnaryTransform: | |||
2024 | case Type::SubstTemplateTypeParm: | |||
2025 | unresolvedType: | |||
2026 | // Some callers want a prefix before the mangled type. | |||
2027 | Out << Prefix; | |||
2028 | ||||
2029 | // This seems to do everything we want. It's not really | |||
2030 | // sanctioned for a substituted template parameter, though. | |||
2031 | mangleType(Ty); | |||
2032 | ||||
2033 | // We never want to print 'E' directly after an unresolved-type, | |||
2034 | // so we return directly. | |||
2035 | return true; | |||
2036 | ||||
2037 | case Type::Typedef: | |||
2038 | mangleSourceNameWithAbiTags(cast<TypedefType>(Ty)->getDecl()); | |||
2039 | break; | |||
2040 | ||||
2041 | case Type::UnresolvedUsing: | |||
2042 | mangleSourceNameWithAbiTags( | |||
2043 | cast<UnresolvedUsingType>(Ty)->getDecl()); | |||
2044 | break; | |||
2045 | ||||
2046 | case Type::Enum: | |||
2047 | case Type::Record: | |||
2048 | mangleSourceNameWithAbiTags(cast<TagType>(Ty)->getDecl()); | |||
2049 | break; | |||
2050 | ||||
2051 | case Type::TemplateSpecialization: { | |||
2052 | const TemplateSpecializationType *TST = | |||
2053 | cast<TemplateSpecializationType>(Ty); | |||
2054 | TemplateName TN = TST->getTemplateName(); | |||
2055 | switch (TN.getKind()) { | |||
2056 | case TemplateName::Template: | |||
2057 | case TemplateName::QualifiedTemplate: { | |||
2058 | TemplateDecl *TD = TN.getAsTemplateDecl(); | |||
2059 | ||||
2060 | // If the base is a template template parameter, this is an | |||
2061 | // unresolved type. | |||
2062 | assert(TD && "no template for template specialization type")((TD && "no template for template specialization type" ) ? static_cast<void> (0) : __assert_fail ("TD && \"no template for template specialization type\"" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 2062, __PRETTY_FUNCTION__)); | |||
2063 | if (isa<TemplateTemplateParmDecl>(TD)) | |||
2064 | goto unresolvedType; | |||
2065 | ||||
2066 | mangleSourceNameWithAbiTags(TD); | |||
2067 | break; | |||
2068 | } | |||
2069 | ||||
2070 | case TemplateName::OverloadedTemplate: | |||
2071 | case TemplateName::AssumedTemplate: | |||
2072 | case TemplateName::DependentTemplate: | |||
2073 | llvm_unreachable("invalid base for a template specialization type")::llvm::llvm_unreachable_internal("invalid base for a template specialization type" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 2073); | |||
2074 | ||||
2075 | case TemplateName::SubstTemplateTemplateParm: { | |||
2076 | SubstTemplateTemplateParmStorage *subst = | |||
2077 | TN.getAsSubstTemplateTemplateParm(); | |||
2078 | mangleExistingSubstitution(subst->getReplacement()); | |||
2079 | break; | |||
2080 | } | |||
2081 | ||||
2082 | case TemplateName::SubstTemplateTemplateParmPack: { | |||
2083 | // FIXME: not clear how to mangle this! | |||
2084 | // template <template <class U> class T...> class A { | |||
2085 | // template <class U...> void foo(decltype(T<U>::foo) x...); | |||
2086 | // }; | |||
2087 | Out << "_SUBSTPACK_"; | |||
2088 | break; | |||
2089 | } | |||
2090 | } | |||
2091 | ||||
2092 | mangleTemplateArgs(TST->getArgs(), TST->getNumArgs()); | |||
2093 | break; | |||
2094 | } | |||
2095 | ||||
2096 | case Type::InjectedClassName: | |||
2097 | mangleSourceNameWithAbiTags( | |||
2098 | cast<InjectedClassNameType>(Ty)->getDecl()); | |||
2099 | break; | |||
2100 | ||||
2101 | case Type::DependentName: | |||
2102 | mangleSourceName(cast<DependentNameType>(Ty)->getIdentifier()); | |||
2103 | break; | |||
2104 | ||||
2105 | case Type::DependentTemplateSpecialization: { | |||
2106 | const DependentTemplateSpecializationType *DTST = | |||
2107 | cast<DependentTemplateSpecializationType>(Ty); | |||
2108 | mangleSourceName(DTST->getIdentifier()); | |||
2109 | mangleTemplateArgs(DTST->getArgs(), DTST->getNumArgs()); | |||
2110 | break; | |||
2111 | } | |||
2112 | ||||
2113 | case Type::Elaborated: | |||
2114 | return mangleUnresolvedTypeOrSimpleId( | |||
2115 | cast<ElaboratedType>(Ty)->getNamedType(), Prefix); | |||
2116 | } | |||
2117 | ||||
2118 | return false; | |||
2119 | } | |||
2120 | ||||
2121 | void CXXNameMangler::mangleOperatorName(DeclarationName Name, unsigned Arity) { | |||
2122 | switch (Name.getNameKind()) { | |||
2123 | case DeclarationName::CXXConstructorName: | |||
2124 | case DeclarationName::CXXDestructorName: | |||
2125 | case DeclarationName::CXXDeductionGuideName: | |||
2126 | case DeclarationName::CXXUsingDirective: | |||
2127 | case DeclarationName::Identifier: | |||
2128 | case DeclarationName::ObjCMultiArgSelector: | |||
2129 | case DeclarationName::ObjCOneArgSelector: | |||
2130 | case DeclarationName::ObjCZeroArgSelector: | |||
2131 | llvm_unreachable("Not an operator name")::llvm::llvm_unreachable_internal("Not an operator name", "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 2131); | |||
2132 | ||||
2133 | case DeclarationName::CXXConversionFunctionName: | |||
2134 | // <operator-name> ::= cv <type> # (cast) | |||
2135 | Out << "cv"; | |||
2136 | mangleType(Name.getCXXNameType()); | |||
2137 | break; | |||
2138 | ||||
2139 | case DeclarationName::CXXLiteralOperatorName: | |||
2140 | Out << "li"; | |||
2141 | mangleSourceName(Name.getCXXLiteralIdentifier()); | |||
2142 | return; | |||
2143 | ||||
2144 | case DeclarationName::CXXOperatorName: | |||
2145 | mangleOperatorName(Name.getCXXOverloadedOperator(), Arity); | |||
2146 | break; | |||
2147 | } | |||
2148 | } | |||
2149 | ||||
2150 | void | |||
2151 | CXXNameMangler::mangleOperatorName(OverloadedOperatorKind OO, unsigned Arity) { | |||
2152 | switch (OO) { | |||
2153 | // <operator-name> ::= nw # new | |||
2154 | case OO_New: Out << "nw"; break; | |||
2155 | // ::= na # new[] | |||
2156 | case OO_Array_New: Out << "na"; break; | |||
2157 | // ::= dl # delete | |||
2158 | case OO_Delete: Out << "dl"; break; | |||
2159 | // ::= da # delete[] | |||
2160 | case OO_Array_Delete: Out << "da"; break; | |||
2161 | // ::= ps # + (unary) | |||
2162 | // ::= pl # + (binary or unknown) | |||
2163 | case OO_Plus: | |||
2164 | Out << (Arity == 1? "ps" : "pl"); break; | |||
2165 | // ::= ng # - (unary) | |||
2166 | // ::= mi # - (binary or unknown) | |||
2167 | case OO_Minus: | |||
2168 | Out << (Arity == 1? "ng" : "mi"); break; | |||
2169 | // ::= ad # & (unary) | |||
2170 | // ::= an # & (binary or unknown) | |||
2171 | case OO_Amp: | |||
2172 | Out << (Arity == 1? "ad" : "an"); break; | |||
2173 | // ::= de # * (unary) | |||
2174 | // ::= ml # * (binary or unknown) | |||
2175 | case OO_Star: | |||
2176 | // Use binary when unknown. | |||
2177 | Out << (Arity == 1? "de" : "ml"); break; | |||
2178 | // ::= co # ~ | |||
2179 | case OO_Tilde: Out << "co"; break; | |||
2180 | // ::= dv # / | |||
2181 | case OO_Slash: Out << "dv"; break; | |||
2182 | // ::= rm # % | |||
2183 | case OO_Percent: Out << "rm"; break; | |||
2184 | // ::= or # | | |||
2185 | case OO_Pipe: Out << "or"; break; | |||
2186 | // ::= eo # ^ | |||
2187 | case OO_Caret: Out << "eo"; break; | |||
2188 | // ::= aS # = | |||
2189 | case OO_Equal: Out << "aS"; break; | |||
2190 | // ::= pL # += | |||
2191 | case OO_PlusEqual: Out << "pL"; break; | |||
2192 | // ::= mI # -= | |||
2193 | case OO_MinusEqual: Out << "mI"; break; | |||
2194 | // ::= mL # *= | |||
2195 | case OO_StarEqual: Out << "mL"; break; | |||
2196 | // ::= dV # /= | |||
2197 | case OO_SlashEqual: Out << "dV"; break; | |||
2198 | // ::= rM # %= | |||
2199 | case OO_PercentEqual: Out << "rM"; break; | |||
2200 | // ::= aN # &= | |||
2201 | case OO_AmpEqual: Out << "aN"; break; | |||
2202 | // ::= oR # |= | |||
2203 | case OO_PipeEqual: Out << "oR"; break; | |||
2204 | // ::= eO # ^= | |||
2205 | case OO_CaretEqual: Out << "eO"; break; | |||
2206 | // ::= ls # << | |||
2207 | case OO_LessLess: Out << "ls"; break; | |||
2208 | // ::= rs # >> | |||
2209 | case OO_GreaterGreater: Out << "rs"; break; | |||
2210 | // ::= lS # <<= | |||
2211 | case OO_LessLessEqual: Out << "lS"; break; | |||
2212 | // ::= rS # >>= | |||
2213 | case OO_GreaterGreaterEqual: Out << "rS"; break; | |||
2214 | // ::= eq # == | |||
2215 | case OO_EqualEqual: Out << "eq"; break; | |||
2216 | // ::= ne # != | |||
2217 | case OO_ExclaimEqual: Out << "ne"; break; | |||
2218 | // ::= lt # < | |||
2219 | case OO_Less: Out << "lt"; break; | |||
2220 | // ::= gt # > | |||
2221 | case OO_Greater: Out << "gt"; break; | |||
2222 | // ::= le # <= | |||
2223 | case OO_LessEqual: Out << "le"; break; | |||
2224 | // ::= ge # >= | |||
2225 | case OO_GreaterEqual: Out << "ge"; break; | |||
2226 | // ::= nt # ! | |||
2227 | case OO_Exclaim: Out << "nt"; break; | |||
2228 | // ::= aa # && | |||
2229 | case OO_AmpAmp: Out << "aa"; break; | |||
2230 | // ::= oo # || | |||
2231 | case OO_PipePipe: Out << "oo"; break; | |||
2232 | // ::= pp # ++ | |||
2233 | case OO_PlusPlus: Out << "pp"; break; | |||
2234 | // ::= mm # -- | |||
2235 | case OO_MinusMinus: Out << "mm"; break; | |||
2236 | // ::= cm # , | |||
2237 | case OO_Comma: Out << "cm"; break; | |||
2238 | // ::= pm # ->* | |||
2239 | case OO_ArrowStar: Out << "pm"; break; | |||
2240 | // ::= pt # -> | |||
2241 | case OO_Arrow: Out << "pt"; break; | |||
2242 | // ::= cl # () | |||
2243 | case OO_Call: Out << "cl"; break; | |||
2244 | // ::= ix # [] | |||
2245 | case OO_Subscript: Out << "ix"; break; | |||
2246 | ||||
2247 | // ::= qu # ? | |||
2248 | // The conditional operator can't be overloaded, but we still handle it when | |||
2249 | // mangling expressions. | |||
2250 | case OO_Conditional: Out << "qu"; break; | |||
2251 | // Proposal on cxx-abi-dev, 2015-10-21. | |||
2252 | // ::= aw # co_await | |||
2253 | case OO_Coawait: Out << "aw"; break; | |||
2254 | // Proposed in cxx-abi github issue 43. | |||
2255 | // ::= ss # <=> | |||
2256 | case OO_Spaceship: Out << "ss"; break; | |||
2257 | ||||
2258 | case OO_None: | |||
2259 | case NUM_OVERLOADED_OPERATORS: | |||
2260 | llvm_unreachable("Not an overloaded operator")::llvm::llvm_unreachable_internal("Not an overloaded operator" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 2260); | |||
2261 | } | |||
2262 | } | |||
2263 | ||||
2264 | void CXXNameMangler::mangleQualifiers(Qualifiers Quals, const DependentAddressSpaceType *DAST) { | |||
2265 | // Vendor qualifiers come first and if they are order-insensitive they must | |||
2266 | // be emitted in reversed alphabetical order, see Itanium ABI 5.1.5. | |||
2267 | ||||
2268 | // <type> ::= U <addrspace-expr> | |||
2269 | if (DAST) { | |||
2270 | Out << "U2ASI"; | |||
2271 | mangleExpression(DAST->getAddrSpaceExpr()); | |||
2272 | Out << "E"; | |||
2273 | } | |||
2274 | ||||
2275 | // Address space qualifiers start with an ordinary letter. | |||
2276 | if (Quals.hasAddressSpace()) { | |||
2277 | // Address space extension: | |||
2278 | // | |||
2279 | // <type> ::= U <target-addrspace> | |||
2280 | // <type> ::= U <OpenCL-addrspace> | |||
2281 | // <type> ::= U <CUDA-addrspace> | |||
2282 | ||||
2283 | SmallString<64> ASString; | |||
2284 | LangAS AS = Quals.getAddressSpace(); | |||
2285 | ||||
2286 | if (Context.getASTContext().addressSpaceMapManglingFor(AS)) { | |||
2287 | // <target-addrspace> ::= "AS" <address-space-number> | |||
2288 | unsigned TargetAS = Context.getASTContext().getTargetAddressSpace(AS); | |||
2289 | if (TargetAS != 0) | |||
2290 | ASString = "AS" + llvm::utostr(TargetAS); | |||
2291 | } else { | |||
2292 | switch (AS) { | |||
2293 | default: llvm_unreachable("Not a language specific address space")::llvm::llvm_unreachable_internal("Not a language specific address space" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 2293); | |||
2294 | // <OpenCL-addrspace> ::= "CL" [ "global" | "local" | "constant" | | |||
2295 | // "private"| "generic" ] | |||
2296 | case LangAS::opencl_global: ASString = "CLglobal"; break; | |||
2297 | case LangAS::opencl_local: ASString = "CLlocal"; break; | |||
2298 | case LangAS::opencl_constant: ASString = "CLconstant"; break; | |||
2299 | case LangAS::opencl_private: ASString = "CLprivate"; break; | |||
2300 | case LangAS::opencl_generic: ASString = "CLgeneric"; break; | |||
2301 | // <CUDA-addrspace> ::= "CU" [ "device" | "constant" | "shared" ] | |||
2302 | case LangAS::cuda_device: ASString = "CUdevice"; break; | |||
2303 | case LangAS::cuda_constant: ASString = "CUconstant"; break; | |||
2304 | case LangAS::cuda_shared: ASString = "CUshared"; break; | |||
2305 | // <ptrsize-addrspace> ::= [ "ptr32_sptr" | "ptr32_uptr" | "ptr64" ] | |||
2306 | case LangAS::ptr32_sptr: | |||
2307 | ASString = "ptr32_sptr"; | |||
2308 | break; | |||
2309 | case LangAS::ptr32_uptr: | |||
2310 | ASString = "ptr32_uptr"; | |||
2311 | break; | |||
2312 | case LangAS::ptr64: | |||
2313 | ASString = "ptr64"; | |||
2314 | break; | |||
2315 | } | |||
2316 | } | |||
2317 | if (!ASString.empty()) | |||
2318 | mangleVendorQualifier(ASString); | |||
2319 | } | |||
2320 | ||||
2321 | // The ARC ownership qualifiers start with underscores. | |||
2322 | // Objective-C ARC Extension: | |||
2323 | // | |||
2324 | // <type> ::= U "__strong" | |||
2325 | // <type> ::= U "__weak" | |||
2326 | // <type> ::= U "__autoreleasing" | |||
2327 | // | |||
2328 | // Note: we emit __weak first to preserve the order as | |||
2329 | // required by the Itanium ABI. | |||
2330 | if (Quals.getObjCLifetime() == Qualifiers::OCL_Weak) | |||
2331 | mangleVendorQualifier("__weak"); | |||
2332 | ||||
2333 | // __unaligned (from -fms-extensions) | |||
2334 | if (Quals.hasUnaligned()) | |||
2335 | mangleVendorQualifier("__unaligned"); | |||
2336 | ||||
2337 | // Remaining ARC ownership qualifiers. | |||
2338 | switch (Quals.getObjCLifetime()) { | |||
2339 | case Qualifiers::OCL_None: | |||
2340 | break; | |||
2341 | ||||
2342 | case Qualifiers::OCL_Weak: | |||
2343 | // Do nothing as we already handled this case above. | |||
2344 | break; | |||
2345 | ||||
2346 | case Qualifiers::OCL_Strong: | |||
2347 | mangleVendorQualifier("__strong"); | |||
2348 | break; | |||
2349 | ||||
2350 | case Qualifiers::OCL_Autoreleasing: | |||
2351 | mangleVendorQualifier("__autoreleasing"); | |||
2352 | break; | |||
2353 | ||||
2354 | case Qualifiers::OCL_ExplicitNone: | |||
2355 | // The __unsafe_unretained qualifier is *not* mangled, so that | |||
2356 | // __unsafe_unretained types in ARC produce the same manglings as the | |||
2357 | // equivalent (but, naturally, unqualified) types in non-ARC, providing | |||
2358 | // better ABI compatibility. | |||
2359 | // | |||
2360 | // It's safe to do this because unqualified 'id' won't show up | |||
2361 | // in any type signatures that need to be mangled. | |||
2362 | break; | |||
2363 | } | |||
2364 | ||||
2365 | // <CV-qualifiers> ::= [r] [V] [K] # restrict (C99), volatile, const | |||
2366 | if (Quals.hasRestrict()) | |||
2367 | Out << 'r'; | |||
2368 | if (Quals.hasVolatile()) | |||
2369 | Out << 'V'; | |||
2370 | if (Quals.hasConst()) | |||
2371 | Out << 'K'; | |||
2372 | } | |||
2373 | ||||
2374 | void CXXNameMangler::mangleVendorQualifier(StringRef name) { | |||
2375 | Out << 'U' << name.size() << name; | |||
2376 | } | |||
2377 | ||||
2378 | void CXXNameMangler::mangleRefQualifier(RefQualifierKind RefQualifier) { | |||
2379 | // <ref-qualifier> ::= R # lvalue reference | |||
2380 | // ::= O # rvalue-reference | |||
2381 | switch (RefQualifier) { | |||
2382 | case RQ_None: | |||
2383 | break; | |||
2384 | ||||
2385 | case RQ_LValue: | |||
2386 | Out << 'R'; | |||
2387 | break; | |||
2388 | ||||
2389 | case RQ_RValue: | |||
2390 | Out << 'O'; | |||
2391 | break; | |||
2392 | } | |||
2393 | } | |||
2394 | ||||
2395 | void CXXNameMangler::mangleObjCMethodName(const ObjCMethodDecl *MD) { | |||
2396 | Context.mangleObjCMethodName(MD, Out); | |||
2397 | } | |||
2398 | ||||
2399 | static bool isTypeSubstitutable(Qualifiers Quals, const Type *Ty, | |||
2400 | ASTContext &Ctx) { | |||
2401 | if (Quals) | |||
2402 | return true; | |||
2403 | if (Ty->isSpecificBuiltinType(BuiltinType::ObjCSel)) | |||
2404 | return true; | |||
2405 | if (Ty->isOpenCLSpecificType()) | |||
2406 | return true; | |||
2407 | if (Ty->isBuiltinType()) | |||
2408 | return false; | |||
2409 | // Through to Clang 6.0, we accidentally treated undeduced auto types as | |||
2410 | // substitution candidates. | |||
2411 | if (Ctx.getLangOpts().getClangABICompat() > LangOptions::ClangABI::Ver6 && | |||
2412 | isa<AutoType>(Ty)) | |||
2413 | return false; | |||
2414 | return true; | |||
2415 | } | |||
2416 | ||||
2417 | void CXXNameMangler::mangleType(QualType T) { | |||
2418 | // If our type is instantiation-dependent but not dependent, we mangle | |||
2419 | // it as it was written in the source, removing any top-level sugar. | |||
2420 | // Otherwise, use the canonical type. | |||
2421 | // | |||
2422 | // FIXME: This is an approximation of the instantiation-dependent name | |||
2423 | // mangling rules, since we should really be using the type as written and | |||
2424 | // augmented via semantic analysis (i.e., with implicit conversions and | |||
2425 | // default template arguments) for any instantiation-dependent type. | |||
2426 | // Unfortunately, that requires several changes to our AST: | |||
2427 | // - Instantiation-dependent TemplateSpecializationTypes will need to be | |||
2428 | // uniqued, so that we can handle substitutions properly | |||
2429 | // - Default template arguments will need to be represented in the | |||
2430 | // TemplateSpecializationType, since they need to be mangled even though | |||
2431 | // they aren't written. | |||
2432 | // - Conversions on non-type template arguments need to be expressed, since | |||
2433 | // they can affect the mangling of sizeof/alignof. | |||
2434 | // | |||
2435 | // FIXME: This is wrong when mapping to the canonical type for a dependent | |||
2436 | // type discards instantiation-dependent portions of the type, such as for: | |||
2437 | // | |||
2438 | // template<typename T, int N> void f(T (&)[sizeof(N)]); | |||
2439 | // template<typename T> void f(T() throw(typename T::type)); (pre-C++17) | |||
2440 | // | |||
2441 | // It's also wrong in the opposite direction when instantiation-dependent, | |||
2442 | // canonically-equivalent types differ in some irrelevant portion of inner | |||
2443 | // type sugar. In such cases, we fail to form correct substitutions, eg: | |||
2444 | // | |||
2445 | // template<int N> void f(A<sizeof(N)> *, A<sizeof(N)> (*)); | |||
2446 | // | |||
2447 | // We should instead canonicalize the non-instantiation-dependent parts, | |||
2448 | // regardless of whether the type as a whole is dependent or instantiation | |||
2449 | // dependent. | |||
2450 | if (!T->isInstantiationDependentType() || T->isDependentType()) | |||
2451 | T = T.getCanonicalType(); | |||
2452 | else { | |||
2453 | // Desugar any types that are purely sugar. | |||
2454 | do { | |||
2455 | // Don't desugar through template specialization types that aren't | |||
2456 | // type aliases. We need to mangle the template arguments as written. | |||
2457 | if (const TemplateSpecializationType *TST | |||
2458 | = dyn_cast<TemplateSpecializationType>(T)) | |||
2459 | if (!TST->isTypeAlias()) | |||
2460 | break; | |||
2461 | ||||
2462 | QualType Desugared | |||
2463 | = T.getSingleStepDesugaredType(Context.getASTContext()); | |||
2464 | if (Desugared == T) | |||
2465 | break; | |||
2466 | ||||
2467 | T = Desugared; | |||
2468 | } while (true); | |||
2469 | } | |||
2470 | SplitQualType split = T.split(); | |||
2471 | Qualifiers quals = split.Quals; | |||
2472 | const Type *ty = split.Ty; | |||
2473 | ||||
2474 | bool isSubstitutable = | |||
2475 | isTypeSubstitutable(quals, ty, Context.getASTContext()); | |||
2476 | if (isSubstitutable && mangleSubstitution(T)) | |||
2477 | return; | |||
2478 | ||||
2479 | // If we're mangling a qualified array type, push the qualifiers to | |||
2480 | // the element type. | |||
2481 | if (quals && isa<ArrayType>(T)) { | |||
2482 | ty = Context.getASTContext().getAsArrayType(T); | |||
2483 | quals = Qualifiers(); | |||
2484 | ||||
2485 | // Note that we don't update T: we want to add the | |||
2486 | // substitution at the original type. | |||
2487 | } | |||
2488 | ||||
2489 | if (quals || ty->isDependentAddressSpaceType()) { | |||
2490 | if (const DependentAddressSpaceType *DAST = | |||
2491 | dyn_cast<DependentAddressSpaceType>(ty)) { | |||
2492 | SplitQualType splitDAST = DAST->getPointeeType().split(); | |||
2493 | mangleQualifiers(splitDAST.Quals, DAST); | |||
2494 | mangleType(QualType(splitDAST.Ty, 0)); | |||
2495 | } else { | |||
2496 | mangleQualifiers(quals); | |||
2497 | ||||
2498 | // Recurse: even if the qualified type isn't yet substitutable, | |||
2499 | // the unqualified type might be. | |||
2500 | mangleType(QualType(ty, 0)); | |||
2501 | } | |||
2502 | } else { | |||
2503 | switch (ty->getTypeClass()) { | |||
2504 | #define ABSTRACT_TYPE(CLASS, PARENT) | |||
2505 | #define NON_CANONICAL_TYPE(CLASS, PARENT) \ | |||
2506 | case Type::CLASS: \ | |||
2507 | 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-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 2507); \ | |||
2508 | return; | |||
2509 | #define TYPE(CLASS, PARENT) \ | |||
2510 | case Type::CLASS: \ | |||
2511 | mangleType(static_cast<const CLASS##Type*>(ty)); \ | |||
2512 | break; | |||
2513 | #include "clang/AST/TypeNodes.inc" | |||
2514 | } | |||
2515 | } | |||
2516 | ||||
2517 | // Add the substitution. | |||
2518 | if (isSubstitutable) | |||
2519 | addSubstitution(T); | |||
2520 | } | |||
2521 | ||||
2522 | void CXXNameMangler::mangleNameOrStandardSubstitution(const NamedDecl *ND) { | |||
2523 | if (!mangleStandardSubstitution(ND)) | |||
2524 | mangleName(ND); | |||
2525 | } | |||
2526 | ||||
2527 | void CXXNameMangler::mangleType(const BuiltinType *T) { | |||
2528 | // <type> ::= <builtin-type> | |||
2529 | // <builtin-type> ::= v # void | |||
2530 | // ::= w # wchar_t | |||
2531 | // ::= b # bool | |||
2532 | // ::= c # char | |||
2533 | // ::= a # signed char | |||
2534 | // ::= h # unsigned char | |||
2535 | // ::= s # short | |||
2536 | // ::= t # unsigned short | |||
2537 | // ::= i # int | |||
2538 | // ::= j # unsigned int | |||
2539 | // ::= l # long | |||
2540 | // ::= m # unsigned long | |||
2541 | // ::= x # long long, __int64 | |||
2542 | // ::= y # unsigned long long, __int64 | |||
2543 | // ::= n # __int128 | |||
2544 | // ::= o # unsigned __int128 | |||
2545 | // ::= f # float | |||
2546 | // ::= d # double | |||
2547 | // ::= e # long double, __float80 | |||
2548 | // ::= g # __float128 | |||
2549 | // UNSUPPORTED: ::= Dd # IEEE 754r decimal floating point (64 bits) | |||
2550 | // UNSUPPORTED: ::= De # IEEE 754r decimal floating point (128 bits) | |||
2551 | // UNSUPPORTED: ::= Df # IEEE 754r decimal floating point (32 bits) | |||
2552 | // ::= Dh # IEEE 754r half-precision floating point (16 bits) | |||
2553 | // ::= DF <number> _ # ISO/IEC TS 18661 binary floating point type _FloatN (N bits); | |||
2554 | // ::= Di # char32_t | |||
2555 | // ::= Ds # char16_t | |||
2556 | // ::= Dn # std::nullptr_t (i.e., decltype(nullptr)) | |||
2557 | // ::= u <source-name> # vendor extended type | |||
2558 | std::string type_name; | |||
2559 | switch (T->getKind()) { | |||
2560 | case BuiltinType::Void: | |||
2561 | Out << 'v'; | |||
2562 | break; | |||
2563 | case BuiltinType::Bool: | |||
2564 | Out << 'b'; | |||
2565 | break; | |||
2566 | case BuiltinType::Char_U: | |||
2567 | case BuiltinType::Char_S: | |||
2568 | Out << 'c'; | |||
2569 | break; | |||
2570 | case BuiltinType::UChar: | |||
2571 | Out << 'h'; | |||
2572 | break; | |||
2573 | case BuiltinType::UShort: | |||
2574 | Out << 't'; | |||
2575 | break; | |||
2576 | case BuiltinType::UInt: | |||
2577 | Out << 'j'; | |||
2578 | break; | |||
2579 | case BuiltinType::ULong: | |||
2580 | Out << 'm'; | |||
2581 | break; | |||
2582 | case BuiltinType::ULongLong: | |||
2583 | Out << 'y'; | |||
2584 | break; | |||
2585 | case BuiltinType::UInt128: | |||
2586 | Out << 'o'; | |||
2587 | break; | |||
2588 | case BuiltinType::SChar: | |||
2589 | Out << 'a'; | |||
2590 | break; | |||
2591 | case BuiltinType::WChar_S: | |||
2592 | case BuiltinType::WChar_U: | |||
2593 | Out << 'w'; | |||
2594 | break; | |||
2595 | case BuiltinType::Char8: | |||
2596 | Out << "Du"; | |||
2597 | break; | |||
2598 | case BuiltinType::Char16: | |||
2599 | Out << "Ds"; | |||
2600 | break; | |||
2601 | case BuiltinType::Char32: | |||
2602 | Out << "Di"; | |||
2603 | break; | |||
2604 | case BuiltinType::Short: | |||
2605 | Out << 's'; | |||
2606 | break; | |||
2607 | case BuiltinType::Int: | |||
2608 | Out << 'i'; | |||
2609 | break; | |||
2610 | case BuiltinType::Long: | |||
2611 | Out << 'l'; | |||
2612 | break; | |||
2613 | case BuiltinType::LongLong: | |||
2614 | Out << 'x'; | |||
2615 | break; | |||
2616 | case BuiltinType::Int128: | |||
2617 | Out << 'n'; | |||
2618 | break; | |||
2619 | case BuiltinType::Float16: | |||
2620 | Out << "DF16_"; | |||
2621 | break; | |||
2622 | case BuiltinType::ShortAccum: | |||
2623 | case BuiltinType::Accum: | |||
2624 | case BuiltinType::LongAccum: | |||
2625 | case BuiltinType::UShortAccum: | |||
2626 | case BuiltinType::UAccum: | |||
2627 | case BuiltinType::ULongAccum: | |||
2628 | case BuiltinType::ShortFract: | |||
2629 | case BuiltinType::Fract: | |||
2630 | case BuiltinType::LongFract: | |||
2631 | case BuiltinType::UShortFract: | |||
2632 | case BuiltinType::UFract: | |||
2633 | case BuiltinType::ULongFract: | |||
2634 | case BuiltinType::SatShortAccum: | |||
2635 | case BuiltinType::SatAccum: | |||
2636 | case BuiltinType::SatLongAccum: | |||
2637 | case BuiltinType::SatUShortAccum: | |||
2638 | case BuiltinType::SatUAccum: | |||
2639 | case BuiltinType::SatULongAccum: | |||
2640 | case BuiltinType::SatShortFract: | |||
2641 | case BuiltinType::SatFract: | |||
2642 | case BuiltinType::SatLongFract: | |||
2643 | case BuiltinType::SatUShortFract: | |||
2644 | case BuiltinType::SatUFract: | |||
2645 | case BuiltinType::SatULongFract: | |||
2646 | llvm_unreachable("Fixed point types are disabled for c++")::llvm::llvm_unreachable_internal("Fixed point types are disabled for c++" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 2646); | |||
2647 | case BuiltinType::Half: | |||
2648 | Out << "Dh"; | |||
2649 | break; | |||
2650 | case BuiltinType::Float: | |||
2651 | Out << 'f'; | |||
2652 | break; | |||
2653 | case BuiltinType::Double: | |||
2654 | Out << 'd'; | |||
2655 | break; | |||
2656 | case BuiltinType::LongDouble: { | |||
2657 | const TargetInfo *TI = getASTContext().getLangOpts().OpenMP && | |||
2658 | getASTContext().getLangOpts().OpenMPIsDevice | |||
2659 | ? getASTContext().getAuxTargetInfo() | |||
2660 | : &getASTContext().getTargetInfo(); | |||
2661 | Out << TI->getLongDoubleMangling(); | |||
2662 | break; | |||
2663 | } | |||
2664 | case BuiltinType::Float128: { | |||
2665 | const TargetInfo *TI = getASTContext().getLangOpts().OpenMP && | |||
2666 | getASTContext().getLangOpts().OpenMPIsDevice | |||
2667 | ? getASTContext().getAuxTargetInfo() | |||
2668 | : &getASTContext().getTargetInfo(); | |||
2669 | Out << TI->getFloat128Mangling(); | |||
2670 | break; | |||
2671 | } | |||
2672 | case BuiltinType::NullPtr: | |||
2673 | Out << "Dn"; | |||
2674 | break; | |||
2675 | ||||
2676 | #define BUILTIN_TYPE(Id, SingletonId) | |||
2677 | #define PLACEHOLDER_TYPE(Id, SingletonId) \ | |||
2678 | case BuiltinType::Id: | |||
2679 | #include "clang/AST/BuiltinTypes.def" | |||
2680 | case BuiltinType::Dependent: | |||
2681 | if (!NullOut) | |||
2682 | llvm_unreachable("mangling a placeholder type")::llvm::llvm_unreachable_internal("mangling a placeholder type" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 2682); | |||
2683 | break; | |||
2684 | case BuiltinType::ObjCId: | |||
2685 | Out << "11objc_object"; | |||
2686 | break; | |||
2687 | case BuiltinType::ObjCClass: | |||
2688 | Out << "10objc_class"; | |||
2689 | break; | |||
2690 | case BuiltinType::ObjCSel: | |||
2691 | Out << "13objc_selector"; | |||
2692 | break; | |||
2693 | #define IMAGE_TYPE(ImgType, Id, SingletonId, Access, Suffix) \ | |||
2694 | case BuiltinType::Id: \ | |||
2695 | type_name = "ocl_" #ImgType "_" #Suffix; \ | |||
2696 | Out << type_name.size() << type_name; \ | |||
2697 | break; | |||
2698 | #include "clang/Basic/OpenCLImageTypes.def" | |||
2699 | case BuiltinType::OCLSampler: | |||
2700 | Out << "11ocl_sampler"; | |||
2701 | break; | |||
2702 | case BuiltinType::OCLEvent: | |||
2703 | Out << "9ocl_event"; | |||
2704 | break; | |||
2705 | case BuiltinType::OCLClkEvent: | |||
2706 | Out << "12ocl_clkevent"; | |||
2707 | break; | |||
2708 | case BuiltinType::OCLQueue: | |||
2709 | Out << "9ocl_queue"; | |||
2710 | break; | |||
2711 | case BuiltinType::OCLReserveID: | |||
2712 | Out << "13ocl_reserveid"; | |||
2713 | break; | |||
2714 | #define EXT_OPAQUE_TYPE(ExtType, Id, Ext) \ | |||
2715 | case BuiltinType::Id: \ | |||
2716 | type_name = "ocl_" #ExtType; \ | |||
2717 | Out << type_name.size() << type_name; \ | |||
2718 | break; | |||
2719 | #include "clang/Basic/OpenCLExtensionTypes.def" | |||
2720 | // The SVE types are effectively target-specific. The mangling scheme | |||
2721 | // is defined in the appendices to the Procedure Call Standard for the | |||
2722 | // Arm Architecture. | |||
2723 | #define SVE_TYPE(Name, Id, SingletonId) \ | |||
2724 | case BuiltinType::Id: \ | |||
2725 | type_name = Name; \ | |||
2726 | Out << 'u' << type_name.size() << type_name; \ | |||
2727 | break; | |||
2728 | #include "clang/Basic/AArch64SVEACLETypes.def" | |||
2729 | } | |||
2730 | } | |||
2731 | ||||
2732 | StringRef CXXNameMangler::getCallingConvQualifierName(CallingConv CC) { | |||
2733 | switch (CC) { | |||
2734 | case CC_C: | |||
2735 | return ""; | |||
2736 | ||||
2737 | case CC_X86VectorCall: | |||
2738 | case CC_X86Pascal: | |||
2739 | case CC_X86RegCall: | |||
2740 | case CC_AAPCS: | |||
2741 | case CC_AAPCS_VFP: | |||
2742 | case CC_AArch64VectorCall: | |||
2743 | case CC_IntelOclBicc: | |||
2744 | case CC_SpirFunction: | |||
2745 | case CC_OpenCLKernel: | |||
2746 | case CC_PreserveMost: | |||
2747 | case CC_PreserveAll: | |||
2748 | // FIXME: we should be mangling all of the above. | |||
2749 | return ""; | |||
2750 | ||||
2751 | case CC_X86ThisCall: | |||
2752 | // FIXME: To match mingw GCC, thiscall should only be mangled in when it is | |||
2753 | // used explicitly. At this point, we don't have that much information in | |||
2754 | // the AST, since clang tends to bake the convention into the canonical | |||
2755 | // function type. thiscall only rarely used explicitly, so don't mangle it | |||
2756 | // for now. | |||
2757 | return ""; | |||
2758 | ||||
2759 | case CC_X86StdCall: | |||
2760 | return "stdcall"; | |||
2761 | case CC_X86FastCall: | |||
2762 | return "fastcall"; | |||
2763 | case CC_X86_64SysV: | |||
2764 | return "sysv_abi"; | |||
2765 | case CC_Win64: | |||
2766 | return "ms_abi"; | |||
2767 | case CC_Swift: | |||
2768 | return "swiftcall"; | |||
2769 | } | |||
2770 | llvm_unreachable("bad calling convention")::llvm::llvm_unreachable_internal("bad calling convention", "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 2770); | |||
2771 | } | |||
2772 | ||||
2773 | void CXXNameMangler::mangleExtFunctionInfo(const FunctionType *T) { | |||
2774 | // Fast path. | |||
2775 | if (T->getExtInfo() == FunctionType::ExtInfo()) | |||
2776 | return; | |||
2777 | ||||
2778 | // Vendor-specific qualifiers are emitted in reverse alphabetical order. | |||
2779 | // This will get more complicated in the future if we mangle other | |||
2780 | // things here; but for now, since we mangle ns_returns_retained as | |||
2781 | // a qualifier on the result type, we can get away with this: | |||
2782 | StringRef CCQualifier = getCallingConvQualifierName(T->getExtInfo().getCC()); | |||
2783 | if (!CCQualifier.empty()) | |||
2784 | mangleVendorQualifier(CCQualifier); | |||
2785 | ||||
2786 | // FIXME: regparm | |||
2787 | // FIXME: noreturn | |||
2788 | } | |||
2789 | ||||
2790 | void | |||
2791 | CXXNameMangler::mangleExtParameterInfo(FunctionProtoType::ExtParameterInfo PI) { | |||
2792 | // Vendor-specific qualifiers are emitted in reverse alphabetical order. | |||
2793 | ||||
2794 | // Note that these are *not* substitution candidates. Demanglers might | |||
2795 | // have trouble with this if the parameter type is fully substituted. | |||
2796 | ||||
2797 | switch (PI.getABI()) { | |||
2798 | case ParameterABI::Ordinary: | |||
2799 | break; | |||
2800 | ||||
2801 | // All of these start with "swift", so they come before "ns_consumed". | |||
2802 | case ParameterABI::SwiftContext: | |||
2803 | case ParameterABI::SwiftErrorResult: | |||
2804 | case ParameterABI::SwiftIndirectResult: | |||
2805 | mangleVendorQualifier(getParameterABISpelling(PI.getABI())); | |||
2806 | break; | |||
2807 | } | |||
2808 | ||||
2809 | if (PI.isConsumed()) | |||
2810 | mangleVendorQualifier("ns_consumed"); | |||
2811 | ||||
2812 | if (PI.isNoEscape()) | |||
2813 | mangleVendorQualifier("noescape"); | |||
2814 | } | |||
2815 | ||||
2816 | // <type> ::= <function-type> | |||
2817 | // <function-type> ::= [<CV-qualifiers>] F [Y] | |||
2818 | // <bare-function-type> [<ref-qualifier>] E | |||
2819 | void CXXNameMangler::mangleType(const FunctionProtoType *T) { | |||
2820 | mangleExtFunctionInfo(T); | |||
2821 | ||||
2822 | // Mangle CV-qualifiers, if present. These are 'this' qualifiers, | |||
2823 | // e.g. "const" in "int (A::*)() const". | |||
2824 | mangleQualifiers(T->getMethodQuals()); | |||
2825 | ||||
2826 | // Mangle instantiation-dependent exception-specification, if present, | |||
2827 | // per cxx-abi-dev proposal on 2016-10-11. | |||
2828 | if (T->hasInstantiationDependentExceptionSpec()) { | |||
2829 | if (isComputedNoexcept(T->getExceptionSpecType())) { | |||
2830 | Out << "DO"; | |||
2831 | mangleExpression(T->getNoexceptExpr()); | |||
2832 | Out << "E"; | |||
2833 | } else { | |||
2834 | assert(T->getExceptionSpecType() == EST_Dynamic)((T->getExceptionSpecType() == EST_Dynamic) ? static_cast< void> (0) : __assert_fail ("T->getExceptionSpecType() == EST_Dynamic" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 2834, __PRETTY_FUNCTION__)); | |||
2835 | Out << "Dw"; | |||
2836 | for (auto ExceptTy : T->exceptions()) | |||
2837 | mangleType(ExceptTy); | |||
2838 | Out << "E"; | |||
2839 | } | |||
2840 | } else if (T->isNothrow()) { | |||
2841 | Out << "Do"; | |||
2842 | } | |||
2843 | ||||
2844 | Out << 'F'; | |||
2845 | ||||
2846 | // FIXME: We don't have enough information in the AST to produce the 'Y' | |||
2847 | // encoding for extern "C" function types. | |||
2848 | mangleBareFunctionType(T, /*MangleReturnType=*/true); | |||
2849 | ||||
2850 | // Mangle the ref-qualifier, if present. | |||
2851 | mangleRefQualifier(T->getRefQualifier()); | |||
2852 | ||||
2853 | Out << 'E'; | |||
2854 | } | |||
2855 | ||||
2856 | void CXXNameMangler::mangleType(const FunctionNoProtoType *T) { | |||
2857 | // Function types without prototypes can arise when mangling a function type | |||
2858 | // within an overloadable function in C. We mangle these as the absence of any | |||
2859 | // parameter types (not even an empty parameter list). | |||
2860 | Out << 'F'; | |||
2861 | ||||
2862 | FunctionTypeDepthState saved = FunctionTypeDepth.push(); | |||
2863 | ||||
2864 | FunctionTypeDepth.enterResultType(); | |||
2865 | mangleType(T->getReturnType()); | |||
2866 | FunctionTypeDepth.leaveResultType(); | |||
2867 | ||||
2868 | FunctionTypeDepth.pop(saved); | |||
2869 | Out << 'E'; | |||
2870 | } | |||
2871 | ||||
2872 | void CXXNameMangler::mangleBareFunctionType(const FunctionProtoType *Proto, | |||
2873 | bool MangleReturnType, | |||
2874 | const FunctionDecl *FD) { | |||
2875 | // Record that we're in a function type. See mangleFunctionParam | |||
2876 | // for details on what we're trying to achieve here. | |||
2877 | FunctionTypeDepthState saved = FunctionTypeDepth.push(); | |||
2878 | ||||
2879 | // <bare-function-type> ::= <signature type>+ | |||
2880 | if (MangleReturnType
| |||
2881 | FunctionTypeDepth.enterResultType(); | |||
2882 | ||||
2883 | // Mangle ns_returns_retained as an order-sensitive qualifier here. | |||
2884 | if (Proto->getExtInfo().getProducesResult() && FD == nullptr) | |||
2885 | mangleVendorQualifier("ns_returns_retained"); | |||
2886 | ||||
2887 | // Mangle the return type without any direct ARC ownership qualifiers. | |||
2888 | QualType ReturnTy = Proto->getReturnType(); | |||
2889 | if (ReturnTy.getObjCLifetime()) { | |||
2890 | auto SplitReturnTy = ReturnTy.split(); | |||
2891 | SplitReturnTy.Quals.removeObjCLifetime(); | |||
2892 | ReturnTy = getASTContext().getQualifiedType(SplitReturnTy); | |||
2893 | } | |||
2894 | mangleType(ReturnTy); | |||
2895 | ||||
2896 | FunctionTypeDepth.leaveResultType(); | |||
2897 | } | |||
2898 | ||||
2899 | if (Proto->getNumParams() == 0 && !Proto->isVariadic()) { | |||
| ||||
2900 | // <builtin-type> ::= v # void | |||
2901 | Out << 'v'; | |||
2902 | ||||
2903 | FunctionTypeDepth.pop(saved); | |||
2904 | return; | |||
2905 | } | |||
2906 | ||||
2907 | assert(!FD || FD->getNumParams() == Proto->getNumParams())((!FD || FD->getNumParams() == Proto->getNumParams()) ? static_cast<void> (0) : __assert_fail ("!FD || FD->getNumParams() == Proto->getNumParams()" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 2907, __PRETTY_FUNCTION__)); | |||
2908 | for (unsigned I = 0, E = Proto->getNumParams(); I != E; ++I) { | |||
2909 | // Mangle extended parameter info as order-sensitive qualifiers here. | |||
2910 | if (Proto->hasExtParameterInfos() && FD == nullptr) { | |||
2911 | mangleExtParameterInfo(Proto->getExtParameterInfo(I)); | |||
2912 | } | |||
2913 | ||||
2914 | // Mangle the type. | |||
2915 | QualType ParamTy = Proto->getParamType(I); | |||
2916 | mangleType(Context.getASTContext().getSignatureParameterType(ParamTy)); | |||
2917 | ||||
2918 | if (FD) { | |||
2919 | if (auto *Attr = FD->getParamDecl(I)->getAttr<PassObjectSizeAttr>()) { | |||
2920 | // Attr can only take 1 character, so we can hardcode the length below. | |||
2921 | assert(Attr->getType() <= 9 && Attr->getType() >= 0)((Attr->getType() <= 9 && Attr->getType() >= 0) ? static_cast<void> (0) : __assert_fail ("Attr->getType() <= 9 && Attr->getType() >= 0" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 2921, __PRETTY_FUNCTION__)); | |||
2922 | if (Attr->isDynamic()) | |||
2923 | Out << "U25pass_dynamic_object_size" << Attr->getType(); | |||
2924 | else | |||
2925 | Out << "U17pass_object_size" << Attr->getType(); | |||
2926 | } | |||
2927 | } | |||
2928 | } | |||
2929 | ||||
2930 | FunctionTypeDepth.pop(saved); | |||
2931 | ||||
2932 | // <builtin-type> ::= z # ellipsis | |||
2933 | if (Proto->isVariadic()) | |||
2934 | Out << 'z'; | |||
2935 | } | |||
2936 | ||||
2937 | // <type> ::= <class-enum-type> | |||
2938 | // <class-enum-type> ::= <name> | |||
2939 | void CXXNameMangler::mangleType(const UnresolvedUsingType *T) { | |||
2940 | mangleName(T->getDecl()); | |||
2941 | } | |||
2942 | ||||
2943 | // <type> ::= <class-enum-type> | |||
2944 | // <class-enum-type> ::= <name> | |||
2945 | void CXXNameMangler::mangleType(const EnumType *T) { | |||
2946 | mangleType(static_cast<const TagType*>(T)); | |||
2947 | } | |||
2948 | void CXXNameMangler::mangleType(const RecordType *T) { | |||
2949 | mangleType(static_cast<const TagType*>(T)); | |||
2950 | } | |||
2951 | void CXXNameMangler::mangleType(const TagType *T) { | |||
2952 | mangleName(T->getDecl()); | |||
2953 | } | |||
2954 | ||||
2955 | // <type> ::= <array-type> | |||
2956 | // <array-type> ::= A <positive dimension number> _ <element type> | |||
2957 | // ::= A [<dimension expression>] _ <element type> | |||
2958 | void CXXNameMangler::mangleType(const ConstantArrayType *T) { | |||
2959 | Out << 'A' << T->getSize() << '_'; | |||
2960 | mangleType(T->getElementType()); | |||
2961 | } | |||
2962 | void CXXNameMangler::mangleType(const VariableArrayType *T) { | |||
2963 | Out << 'A'; | |||
2964 | // decayed vla types (size 0) will just be skipped. | |||
2965 | if (T->getSizeExpr()) | |||
2966 | mangleExpression(T->getSizeExpr()); | |||
2967 | Out << '_'; | |||
2968 | mangleType(T->getElementType()); | |||
2969 | } | |||
2970 | void CXXNameMangler::mangleType(const DependentSizedArrayType *T) { | |||
2971 | Out << 'A'; | |||
2972 | mangleExpression(T->getSizeExpr()); | |||
2973 | Out << '_'; | |||
2974 | mangleType(T->getElementType()); | |||
2975 | } | |||
2976 | void CXXNameMangler::mangleType(const IncompleteArrayType *T) { | |||
2977 | Out << "A_"; | |||
2978 | mangleType(T->getElementType()); | |||
2979 | } | |||
2980 | ||||
2981 | // <type> ::= <pointer-to-member-type> | |||
2982 | // <pointer-to-member-type> ::= M <class type> <member type> | |||
2983 | void CXXNameMangler::mangleType(const MemberPointerType *T) { | |||
2984 | Out << 'M'; | |||
2985 | mangleType(QualType(T->getClass(), 0)); | |||
2986 | QualType PointeeType = T->getPointeeType(); | |||
2987 | if (const FunctionProtoType *FPT = dyn_cast<FunctionProtoType>(PointeeType)) { | |||
2988 | mangleType(FPT); | |||
2989 | ||||
2990 | // Itanium C++ ABI 5.1.8: | |||
2991 | // | |||
2992 | // The type of a non-static member function is considered to be different, | |||
2993 | // for the purposes of substitution, from the type of a namespace-scope or | |||
2994 | // static member function whose type appears similar. The types of two | |||
2995 | // non-static member functions are considered to be different, for the | |||
2996 | // purposes of substitution, if the functions are members of different | |||
2997 | // classes. In other words, for the purposes of substitution, the class of | |||
2998 | // which the function is a member is considered part of the type of | |||
2999 | // function. | |||
3000 | ||||
3001 | // Given that we already substitute member function pointers as a | |||
3002 | // whole, the net effect of this rule is just to unconditionally | |||
3003 | // suppress substitution on the function type in a member pointer. | |||
3004 | // We increment the SeqID here to emulate adding an entry to the | |||
3005 | // substitution table. | |||
3006 | ++SeqID; | |||
3007 | } else | |||
3008 | mangleType(PointeeType); | |||
3009 | } | |||
3010 | ||||
3011 | // <type> ::= <template-param> | |||
3012 | void CXXNameMangler::mangleType(const TemplateTypeParmType *T) { | |||
3013 | mangleTemplateParameter(T->getDepth(), T->getIndex()); | |||
3014 | } | |||
3015 | ||||
3016 | // <type> ::= <template-param> | |||
3017 | void CXXNameMangler::mangleType(const SubstTemplateTypeParmPackType *T) { | |||
3018 | // FIXME: not clear how to mangle this! | |||
3019 | // template <class T...> class A { | |||
3020 | // template <class U...> void foo(T(*)(U) x...); | |||
3021 | // }; | |||
3022 | Out << "_SUBSTPACK_"; | |||
3023 | } | |||
3024 | ||||
3025 | // <type> ::= P <type> # pointer-to | |||
3026 | void CXXNameMangler::mangleType(const PointerType *T) { | |||
3027 | Out << 'P'; | |||
3028 | mangleType(T->getPointeeType()); | |||
3029 | } | |||
3030 | void CXXNameMangler::mangleType(const ObjCObjectPointerType *T) { | |||
3031 | Out << 'P'; | |||
3032 | mangleType(T->getPointeeType()); | |||
3033 | } | |||
3034 | ||||
3035 | // <type> ::= R <type> # reference-to | |||
3036 | void CXXNameMangler::mangleType(const LValueReferenceType *T) { | |||
3037 | Out << 'R'; | |||
3038 | mangleType(T->getPointeeType()); | |||
3039 | } | |||
3040 | ||||
3041 | // <type> ::= O <type> # rvalue reference-to (C++0x) | |||
3042 | void CXXNameMangler::mangleType(const RValueReferenceType *T) { | |||
3043 | Out << 'O'; | |||
3044 | mangleType(T->getPointeeType()); | |||
3045 | } | |||
3046 | ||||
3047 | // <type> ::= C <type> # complex pair (C 2000) | |||
3048 | void CXXNameMangler::mangleType(const ComplexType *T) { | |||
3049 | Out << 'C'; | |||
3050 | mangleType(T->getElementType()); | |||
3051 | } | |||
3052 | ||||
3053 | // ARM's ABI for Neon vector types specifies that they should be mangled as | |||
3054 | // if they are structs (to match ARM's initial implementation). The | |||
3055 | // vector type must be one of the special types predefined by ARM. | |||
3056 | void CXXNameMangler::mangleNeonVectorType(const VectorType *T) { | |||
3057 | QualType EltType = T->getElementType(); | |||
3058 | assert(EltType->isBuiltinType() && "Neon vector element not a BuiltinType")((EltType->isBuiltinType() && "Neon vector element not a BuiltinType" ) ? static_cast<void> (0) : __assert_fail ("EltType->isBuiltinType() && \"Neon vector element not a BuiltinType\"" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 3058, __PRETTY_FUNCTION__)); | |||
3059 | const char *EltName = nullptr; | |||
3060 | if (T->getVectorKind() == VectorType::NeonPolyVector) { | |||
3061 | switch (cast<BuiltinType>(EltType)->getKind()) { | |||
3062 | case BuiltinType::SChar: | |||
3063 | case BuiltinType::UChar: | |||
3064 | EltName = "poly8_t"; | |||
3065 | break; | |||
3066 | case BuiltinType::Short: | |||
3067 | case BuiltinType::UShort: | |||
3068 | EltName = "poly16_t"; | |||
3069 | break; | |||
3070 | case BuiltinType::ULongLong: | |||
3071 | EltName = "poly64_t"; | |||
3072 | break; | |||
3073 | default: llvm_unreachable("unexpected Neon polynomial vector element type")::llvm::llvm_unreachable_internal("unexpected Neon polynomial vector element type" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 3073); | |||
3074 | } | |||
3075 | } else { | |||
3076 | switch (cast<BuiltinType>(EltType)->getKind()) { | |||
3077 | case BuiltinType::SChar: EltName = "int8_t"; break; | |||
3078 | case BuiltinType::UChar: EltName = "uint8_t"; break; | |||
3079 | case BuiltinType::Short: EltName = "int16_t"; break; | |||
3080 | case BuiltinType::UShort: EltName = "uint16_t"; break; | |||
3081 | case BuiltinType::Int: EltName = "int32_t"; break; | |||
3082 | case BuiltinType::UInt: EltName = "uint32_t"; break; | |||
3083 | case BuiltinType::LongLong: EltName = "int64_t"; break; | |||
3084 | case BuiltinType::ULongLong: EltName = "uint64_t"; break; | |||
3085 | case BuiltinType::Double: EltName = "float64_t"; break; | |||
3086 | case BuiltinType::Float: EltName = "float32_t"; break; | |||
3087 | case BuiltinType::Half: EltName = "float16_t";break; | |||
3088 | default: | |||
3089 | llvm_unreachable("unexpected Neon vector element type")::llvm::llvm_unreachable_internal("unexpected Neon vector element type" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 3089); | |||
3090 | } | |||
3091 | } | |||
3092 | const char *BaseName = nullptr; | |||
3093 | unsigned BitSize = (T->getNumElements() * | |||
3094 | getASTContext().getTypeSize(EltType)); | |||
3095 | if (BitSize == 64) | |||
3096 | BaseName = "__simd64_"; | |||
3097 | else { | |||
3098 | assert(BitSize == 128 && "Neon vector type not 64 or 128 bits")((BitSize == 128 && "Neon vector type not 64 or 128 bits" ) ? static_cast<void> (0) : __assert_fail ("BitSize == 128 && \"Neon vector type not 64 or 128 bits\"" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 3098, __PRETTY_FUNCTION__)); | |||
3099 | BaseName = "__simd128_"; | |||
3100 | } | |||
3101 | Out << strlen(BaseName) + strlen(EltName); | |||
3102 | Out << BaseName << EltName; | |||
3103 | } | |||
3104 | ||||
3105 | void CXXNameMangler::mangleNeonVectorType(const DependentVectorType *T) { | |||
3106 | DiagnosticsEngine &Diags = Context.getDiags(); | |||
3107 | unsigned DiagID = Diags.getCustomDiagID( | |||
3108 | DiagnosticsEngine::Error, | |||
3109 | "cannot mangle this dependent neon vector type yet"); | |||
3110 | Diags.Report(T->getAttributeLoc(), DiagID); | |||
3111 | } | |||
3112 | ||||
3113 | static StringRef mangleAArch64VectorBase(const BuiltinType *EltType) { | |||
3114 | switch (EltType->getKind()) { | |||
3115 | case BuiltinType::SChar: | |||
3116 | return "Int8"; | |||
3117 | case BuiltinType::Short: | |||
3118 | return "Int16"; | |||
3119 | case BuiltinType::Int: | |||
3120 | return "Int32"; | |||
3121 | case BuiltinType::Long: | |||
3122 | case BuiltinType::LongLong: | |||
3123 | return "Int64"; | |||
3124 | case BuiltinType::UChar: | |||
3125 | return "Uint8"; | |||
3126 | case BuiltinType::UShort: | |||
3127 | return "Uint16"; | |||
3128 | case BuiltinType::UInt: | |||
3129 | return "Uint32"; | |||
3130 | case BuiltinType::ULong: | |||
3131 | case BuiltinType::ULongLong: | |||
3132 | return "Uint64"; | |||
3133 | case BuiltinType::Half: | |||
3134 | return "Float16"; | |||
3135 | case BuiltinType::Float: | |||
3136 | return "Float32"; | |||
3137 | case BuiltinType::Double: | |||
3138 | return "Float64"; | |||
3139 | default: | |||
3140 | llvm_unreachable("Unexpected vector element base type")::llvm::llvm_unreachable_internal("Unexpected vector element base type" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 3140); | |||
3141 | } | |||
3142 | } | |||
3143 | ||||
3144 | // AArch64's ABI for Neon vector types specifies that they should be mangled as | |||
3145 | // the equivalent internal name. The vector type must be one of the special | |||
3146 | // types predefined by ARM. | |||
3147 | void CXXNameMangler::mangleAArch64NeonVectorType(const VectorType *T) { | |||
3148 | QualType EltType = T->getElementType(); | |||
3149 | assert(EltType->isBuiltinType() && "Neon vector element not a BuiltinType")((EltType->isBuiltinType() && "Neon vector element not a BuiltinType" ) ? static_cast<void> (0) : __assert_fail ("EltType->isBuiltinType() && \"Neon vector element not a BuiltinType\"" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 3149, __PRETTY_FUNCTION__)); | |||
3150 | unsigned BitSize = | |||
3151 | (T->getNumElements() * getASTContext().getTypeSize(EltType)); | |||
3152 | (void)BitSize; // Silence warning. | |||
3153 | ||||
3154 | assert((BitSize == 64 || BitSize == 128) &&(((BitSize == 64 || BitSize == 128) && "Neon vector type not 64 or 128 bits" ) ? static_cast<void> (0) : __assert_fail ("(BitSize == 64 || BitSize == 128) && \"Neon vector type not 64 or 128 bits\"" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 3155, __PRETTY_FUNCTION__)) | |||
3155 | "Neon vector type not 64 or 128 bits")(((BitSize == 64 || BitSize == 128) && "Neon vector type not 64 or 128 bits" ) ? static_cast<void> (0) : __assert_fail ("(BitSize == 64 || BitSize == 128) && \"Neon vector type not 64 or 128 bits\"" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 3155, __PRETTY_FUNCTION__)); | |||
3156 | ||||
3157 | StringRef EltName; | |||
3158 | if (T->getVectorKind() == VectorType::NeonPolyVector) { | |||
3159 | switch (cast<BuiltinType>(EltType)->getKind()) { | |||
3160 | case BuiltinType::UChar: | |||
3161 | EltName = "Poly8"; | |||
3162 | break; | |||
3163 | case BuiltinType::UShort: | |||
3164 | EltName = "Poly16"; | |||
3165 | break; | |||
3166 | case BuiltinType::ULong: | |||
3167 | case BuiltinType::ULongLong: | |||
3168 | EltName = "Poly64"; | |||
3169 | break; | |||
3170 | default: | |||
3171 | llvm_unreachable("unexpected Neon polynomial vector element type")::llvm::llvm_unreachable_internal("unexpected Neon polynomial vector element type" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 3171); | |||
3172 | } | |||
3173 | } else | |||
3174 | EltName = mangleAArch64VectorBase(cast<BuiltinType>(EltType)); | |||
3175 | ||||
3176 | std::string TypeName = | |||
3177 | ("__" + EltName + "x" + Twine(T->getNumElements()) + "_t").str(); | |||
3178 | Out << TypeName.length() << TypeName; | |||
3179 | } | |||
3180 | void CXXNameMangler::mangleAArch64NeonVectorType(const DependentVectorType *T) { | |||
3181 | DiagnosticsEngine &Diags = Context.getDiags(); | |||
3182 | unsigned DiagID = Diags.getCustomDiagID( | |||
3183 | DiagnosticsEngine::Error, | |||
3184 | "cannot mangle this dependent neon vector type yet"); | |||
3185 | Diags.Report(T->getAttributeLoc(), DiagID); | |||
3186 | } | |||
3187 | ||||
3188 | // GNU extension: vector types | |||
3189 | // <type> ::= <vector-type> | |||
3190 | // <vector-type> ::= Dv <positive dimension number> _ | |||
3191 | // <extended element type> | |||
3192 | // ::= Dv [<dimension expression>] _ <element type> | |||
3193 | // <extended element type> ::= <element type> | |||
3194 | // ::= p # AltiVec vector pixel | |||
3195 | // ::= b # Altivec vector bool | |||
3196 | void CXXNameMangler::mangleType(const VectorType *T) { | |||
3197 | if ((T->getVectorKind() == VectorType::NeonVector || | |||
3198 | T->getVectorKind() == VectorType::NeonPolyVector)) { | |||
3199 | llvm::Triple Target = getASTContext().getTargetInfo().getTriple(); | |||
3200 | llvm::Triple::ArchType Arch = | |||
3201 | getASTContext().getTargetInfo().getTriple().getArch(); | |||
3202 | if ((Arch == llvm::Triple::aarch64 || | |||
3203 | Arch == llvm::Triple::aarch64_be) && !Target.isOSDarwin()) | |||
3204 | mangleAArch64NeonVectorType(T); | |||
3205 | else | |||
3206 | mangleNeonVectorType(T); | |||
3207 | return; | |||
3208 | } | |||
3209 | Out << "Dv" << T->getNumElements() << '_'; | |||
3210 | if (T->getVectorKind() == VectorType::AltiVecPixel) | |||
3211 | Out << 'p'; | |||
3212 | else if (T->getVectorKind() == VectorType::AltiVecBool) | |||
3213 | Out << 'b'; | |||
3214 | else | |||
3215 | mangleType(T->getElementType()); | |||
3216 | } | |||
3217 | ||||
3218 | void CXXNameMangler::mangleType(const DependentVectorType *T) { | |||
3219 | if ((T->getVectorKind() == VectorType::NeonVector || | |||
3220 | T->getVectorKind() == VectorType::NeonPolyVector)) { | |||
3221 | llvm::Triple Target = getASTContext().getTargetInfo().getTriple(); | |||
3222 | llvm::Triple::ArchType Arch = | |||
3223 | getASTContext().getTargetInfo().getTriple().getArch(); | |||
3224 | if ((Arch == llvm::Triple::aarch64 || Arch == llvm::Triple::aarch64_be) && | |||
3225 | !Target.isOSDarwin()) | |||
3226 | mangleAArch64NeonVectorType(T); | |||
3227 | else | |||
3228 | mangleNeonVectorType(T); | |||
3229 | return; | |||
3230 | } | |||
3231 | ||||
3232 | Out << "Dv"; | |||
3233 | mangleExpression(T->getSizeExpr()); | |||
3234 | Out << '_'; | |||
3235 | if (T->getVectorKind() == VectorType::AltiVecPixel) | |||
3236 | Out << 'p'; | |||
3237 | else if (T->getVectorKind() == VectorType::AltiVecBool) | |||
3238 | Out << 'b'; | |||
3239 | else | |||
3240 | mangleType(T->getElementType()); | |||
3241 | } | |||
3242 | ||||
3243 | void CXXNameMangler::mangleType(const ExtVectorType *T) { | |||
3244 | mangleType(static_cast<const VectorType*>(T)); | |||
3245 | } | |||
3246 | void CXXNameMangler::mangleType(const DependentSizedExtVectorType *T) { | |||
3247 | Out << "Dv"; | |||
3248 | mangleExpression(T->getSizeExpr()); | |||
3249 | Out << '_'; | |||
3250 | mangleType(T->getElementType()); | |||
3251 | } | |||
3252 | ||||
3253 | void CXXNameMangler::mangleType(const DependentAddressSpaceType *T) { | |||
3254 | SplitQualType split = T->getPointeeType().split(); | |||
3255 | mangleQualifiers(split.Quals, T); | |||
3256 | mangleType(QualType(split.Ty, 0)); | |||
3257 | } | |||
3258 | ||||
3259 | void CXXNameMangler::mangleType(const PackExpansionType *T) { | |||
3260 | // <type> ::= Dp <type> # pack expansion (C++0x) | |||
3261 | Out << "Dp"; | |||
3262 | mangleType(T->getPattern()); | |||
3263 | } | |||
3264 | ||||
3265 | void CXXNameMangler::mangleType(const ObjCInterfaceType *T) { | |||
3266 | mangleSourceName(T->getDecl()->getIdentifier()); | |||
3267 | } | |||
3268 | ||||
3269 | void CXXNameMangler::mangleType(const ObjCObjectType *T) { | |||
3270 | // Treat __kindof as a vendor extended type qualifier. | |||
3271 | if (T->isKindOfType()) | |||
3272 | Out << "U8__kindof"; | |||
3273 | ||||
3274 | if (!T->qual_empty()) { | |||
3275 | // Mangle protocol qualifiers. | |||
3276 | SmallString<64> QualStr; | |||
3277 | llvm::raw_svector_ostream QualOS(QualStr); | |||
3278 | QualOS << "objcproto"; | |||
3279 | for (const auto *I : T->quals()) { | |||
3280 | StringRef name = I->getName(); | |||
3281 | QualOS << name.size() << name; | |||
3282 | } | |||
3283 | Out << 'U' << QualStr.size() << QualStr; | |||
3284 | } | |||
3285 | ||||
3286 | mangleType(T->getBaseType()); | |||
3287 | ||||
3288 | if (T->isSpecialized()) { | |||
3289 | // Mangle type arguments as I <type>+ E | |||
3290 | Out << 'I'; | |||
3291 | for (auto typeArg : T->getTypeArgs()) | |||
3292 | mangleType(typeArg); | |||
3293 | Out << 'E'; | |||
3294 | } | |||
3295 | } | |||
3296 | ||||
3297 | void CXXNameMangler::mangleType(const BlockPointerType *T) { | |||
3298 | Out << "U13block_pointer"; | |||
3299 | mangleType(T->getPointeeType()); | |||
3300 | } | |||
3301 | ||||
3302 | void CXXNameMangler::mangleType(const InjectedClassNameType *T) { | |||
3303 | // Mangle injected class name types as if the user had written the | |||
3304 | // specialization out fully. It may not actually be possible to see | |||
3305 | // this mangling, though. | |||
3306 | mangleType(T->getInjectedSpecializationType()); | |||
3307 | } | |||
3308 | ||||
3309 | void CXXNameMangler::mangleType(const TemplateSpecializationType *T) { | |||
3310 | if (TemplateDecl *TD = T->getTemplateName().getAsTemplateDecl()) { | |||
3311 | mangleTemplateName(TD, T->getArgs(), T->getNumArgs()); | |||
3312 | } else { | |||
3313 | if (mangleSubstitution(QualType(T, 0))) | |||
3314 | return; | |||
3315 | ||||
3316 | mangleTemplatePrefix(T->getTemplateName()); | |||
3317 | ||||
3318 | // FIXME: GCC does not appear to mangle the template arguments when | |||
3319 | // the template in question is a dependent template name. Should we | |||
3320 | // emulate that badness? | |||
3321 | mangleTemplateArgs(T->getArgs(), T->getNumArgs()); | |||
3322 | addSubstitution(QualType(T, 0)); | |||
3323 | } | |||
3324 | } | |||
3325 | ||||
3326 | void CXXNameMangler::mangleType(const DependentNameType *T) { | |||
3327 | // Proposal by cxx-abi-dev, 2014-03-26 | |||
3328 | // <class-enum-type> ::= <name> # non-dependent or dependent type name or | |||
3329 | // # dependent elaborated type specifier using | |||
3330 | // # 'typename' | |||
3331 | // ::= Ts <name> # dependent elaborated type specifier using | |||
3332 | // # 'struct' or 'class' | |||
3333 | // ::= Tu <name> # dependent elaborated type specifier using | |||
3334 | // # 'union' | |||
3335 | // ::= Te <name> # dependent elaborated type specifier using | |||
3336 | // # 'enum' | |||
3337 | switch (T->getKeyword()) { | |||
3338 | case ETK_None: | |||
3339 | case ETK_Typename: | |||
3340 | break; | |||
3341 | case ETK_Struct: | |||
3342 | case ETK_Class: | |||
3343 | case ETK_Interface: | |||
3344 | Out << "Ts"; | |||
3345 | break; | |||
3346 | case ETK_Union: | |||
3347 | Out << "Tu"; | |||
3348 | break; | |||
3349 | case ETK_Enum: | |||
3350 | Out << "Te"; | |||
3351 | break; | |||
3352 | } | |||
3353 | // Typename types are always nested | |||
3354 | Out << 'N'; | |||
3355 | manglePrefix(T->getQualifier()); | |||
3356 | mangleSourceName(T->getIdentifier()); | |||
3357 | Out << 'E'; | |||
3358 | } | |||
3359 | ||||
3360 | void CXXNameMangler::mangleType(const DependentTemplateSpecializationType *T) { | |||
3361 | // Dependently-scoped template types are nested if they have a prefix. | |||
3362 | Out << 'N'; | |||
3363 | ||||
3364 | // TODO: avoid making this TemplateName. | |||
3365 | TemplateName Prefix = | |||
3366 | getASTContext().getDependentTemplateName(T->getQualifier(), | |||
3367 | T->getIdentifier()); | |||
3368 | mangleTemplatePrefix(Prefix); | |||
3369 | ||||
3370 | // FIXME: GCC does not appear to mangle the template arguments when | |||
3371 | // the template in question is a dependent template name. Should we | |||
3372 | // emulate that badness? | |||
3373 | mangleTemplateArgs(T->getArgs(), T->getNumArgs()); | |||
3374 | Out << 'E'; | |||
3375 | } | |||
3376 | ||||
3377 | void CXXNameMangler::mangleType(const TypeOfType *T) { | |||
3378 | // FIXME: this is pretty unsatisfactory, but there isn't an obvious | |||
3379 | // "extension with parameters" mangling. | |||
3380 | Out << "u6typeof"; | |||
3381 | } | |||
3382 | ||||
3383 | void CXXNameMangler::mangleType(const TypeOfExprType *T) { | |||
3384 | // FIXME: this is pretty unsatisfactory, but there isn't an obvious | |||
3385 | // "extension with parameters" mangling. | |||
3386 | Out << "u6typeof"; | |||
3387 | } | |||
3388 | ||||
3389 | void CXXNameMangler::mangleType(const DecltypeType *T) { | |||
3390 | Expr *E = T->getUnderlyingExpr(); | |||
3391 | ||||
3392 | // type ::= Dt <expression> E # decltype of an id-expression | |||
3393 | // # or class member access | |||
3394 | // ::= DT <expression> E # decltype of an expression | |||
3395 | ||||
3396 | // This purports to be an exhaustive list of id-expressions and | |||
3397 | // class member accesses. Note that we do not ignore parentheses; | |||
3398 | // parentheses change the semantics of decltype for these | |||
3399 | // expressions (and cause the mangler to use the other form). | |||
3400 | if (isa<DeclRefExpr>(E) || | |||
3401 | isa<MemberExpr>(E) || | |||
3402 | isa<UnresolvedLookupExpr>(E) || | |||
3403 | isa<DependentScopeDeclRefExpr>(E) || | |||
3404 | isa<CXXDependentScopeMemberExpr>(E) || | |||
3405 | isa<UnresolvedMemberExpr>(E)) | |||
3406 | Out << "Dt"; | |||
3407 | else | |||
3408 | Out << "DT"; | |||
3409 | mangleExpression(E); | |||
3410 | Out << 'E'; | |||
3411 | } | |||
3412 | ||||
3413 | void CXXNameMangler::mangleType(const UnaryTransformType *T) { | |||
3414 | // If this is dependent, we need to record that. If not, we simply | |||
3415 | // mangle it as the underlying type since they are equivalent. | |||
3416 | if (T->isDependentType()) { | |||
3417 | Out << 'U'; | |||
3418 | ||||
3419 | switch (T->getUTTKind()) { | |||
3420 | case UnaryTransformType::EnumUnderlyingType: | |||
3421 | Out << "3eut"; | |||
3422 | break; | |||
3423 | } | |||
3424 | } | |||
3425 | ||||
3426 | mangleType(T->getBaseType()); | |||
3427 | } | |||
3428 | ||||
3429 | void CXXNameMangler::mangleType(const AutoType *T) { | |||
3430 | assert(T->getDeducedType().isNull() &&((T->getDeducedType().isNull() && "Deduced AutoType shouldn't be handled here!" ) ? static_cast<void> (0) : __assert_fail ("T->getDeducedType().isNull() && \"Deduced AutoType shouldn't be handled here!\"" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 3431, __PRETTY_FUNCTION__)) | |||
3431 | "Deduced AutoType shouldn't be handled here!")((T->getDeducedType().isNull() && "Deduced AutoType shouldn't be handled here!" ) ? static_cast<void> (0) : __assert_fail ("T->getDeducedType().isNull() && \"Deduced AutoType shouldn't be handled here!\"" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 3431, __PRETTY_FUNCTION__)); | |||
3432 | assert(T->getKeyword() != AutoTypeKeyword::GNUAutoType &&((T->getKeyword() != AutoTypeKeyword::GNUAutoType && "shouldn't need to mangle __auto_type!") ? static_cast<void > (0) : __assert_fail ("T->getKeyword() != AutoTypeKeyword::GNUAutoType && \"shouldn't need to mangle __auto_type!\"" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 3433, __PRETTY_FUNCTION__)) | |||
3433 | "shouldn't need to mangle __auto_type!")((T->getKeyword() != AutoTypeKeyword::GNUAutoType && "shouldn't need to mangle __auto_type!") ? static_cast<void > (0) : __assert_fail ("T->getKeyword() != AutoTypeKeyword::GNUAutoType && \"shouldn't need to mangle __auto_type!\"" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 3433, __PRETTY_FUNCTION__)); | |||
3434 | // <builtin-type> ::= Da # auto | |||
3435 | // ::= Dc # decltype(auto) | |||
3436 | Out << (T->isDecltypeAuto() ? "Dc" : "Da"); | |||
3437 | } | |||
3438 | ||||
3439 | void CXXNameMangler::mangleType(const DeducedTemplateSpecializationType *T) { | |||
3440 | // FIXME: This is not the right mangling. We also need to include a scope | |||
3441 | // here in some cases. | |||
3442 | QualType D = T->getDeducedType(); | |||
3443 | if (D.isNull()) | |||
3444 | mangleUnscopedTemplateName(T->getTemplateName(), nullptr); | |||
3445 | else | |||
3446 | mangleType(D); | |||
3447 | } | |||
3448 | ||||
3449 | void CXXNameMangler::mangleType(const AtomicType *T) { | |||
3450 | // <type> ::= U <source-name> <type> # vendor extended type qualifier | |||
3451 | // (Until there's a standardized mangling...) | |||
3452 | Out << "U7_Atomic"; | |||
3453 | mangleType(T->getValueType()); | |||
3454 | } | |||
3455 | ||||
3456 | void CXXNameMangler::mangleType(const PipeType *T) { | |||
3457 | // Pipe type mangling rules are described in SPIR 2.0 specification | |||
3458 | // A.1 Data types and A.3 Summary of changes | |||
3459 | // <type> ::= 8ocl_pipe | |||
3460 | Out << "8ocl_pipe"; | |||
3461 | } | |||
3462 | ||||
3463 | void CXXNameMangler::mangleIntegerLiteral(QualType T, | |||
3464 | const llvm::APSInt &Value) { | |||
3465 | // <expr-primary> ::= L <type> <value number> E # integer literal | |||
3466 | Out << 'L'; | |||
3467 | ||||
3468 | mangleType(T); | |||
3469 | if (T->isBooleanType()) { | |||
3470 | // Boolean values are encoded as 0/1. | |||
3471 | Out << (Value.getBoolValue() ? '1' : '0'); | |||
3472 | } else { | |||
3473 | mangleNumber(Value); | |||
3474 | } | |||
3475 | Out << 'E'; | |||
3476 | ||||
3477 | } | |||
3478 | ||||
3479 | void CXXNameMangler::mangleMemberExprBase(const Expr *Base, bool IsArrow) { | |||
3480 | // Ignore member expressions involving anonymous unions. | |||
3481 | while (const auto *RT = Base->getType()->getAs<RecordType>()) { | |||
3482 | if (!RT->getDecl()->isAnonymousStructOrUnion()) | |||
3483 | break; | |||
3484 | const auto *ME = dyn_cast<MemberExpr>(Base); | |||
3485 | if (!ME) | |||
3486 | break; | |||
3487 | Base = ME->getBase(); | |||
3488 | IsArrow = ME->isArrow(); | |||
3489 | } | |||
3490 | ||||
3491 | if (Base->isImplicitCXXThis()) { | |||
3492 | // Note: GCC mangles member expressions to the implicit 'this' as | |||
3493 | // *this., whereas we represent them as this->. The Itanium C++ ABI | |||
3494 | // does not specify anything here, so we follow GCC. | |||
3495 | Out << "dtdefpT"; | |||
3496 | } else { | |||
3497 | Out << (IsArrow ? "pt" : "dt"); | |||
3498 | mangleExpression(Base); | |||
3499 | } | |||
3500 | } | |||
3501 | ||||
3502 | /// Mangles a member expression. | |||
3503 | void CXXNameMangler::mangleMemberExpr(const Expr *base, | |||
3504 | bool isArrow, | |||
3505 | NestedNameSpecifier *qualifier, | |||
3506 | NamedDecl *firstQualifierLookup, | |||
3507 | DeclarationName member, | |||
3508 | const TemplateArgumentLoc *TemplateArgs, | |||
3509 | unsigned NumTemplateArgs, | |||
3510 | unsigned arity) { | |||
3511 | // <expression> ::= dt <expression> <unresolved-name> | |||
3512 | // ::= pt <expression> <unresolved-name> | |||
3513 | if (base) | |||
3514 | mangleMemberExprBase(base, isArrow); | |||
3515 | mangleUnresolvedName(qualifier, member, TemplateArgs, NumTemplateArgs, arity); | |||
3516 | } | |||
3517 | ||||
3518 | /// Look at the callee of the given call expression and determine if | |||
3519 | /// it's a parenthesized id-expression which would have triggered ADL | |||
3520 | /// otherwise. | |||
3521 | static bool isParenthesizedADLCallee(const CallExpr *call) { | |||
3522 | const Expr *callee = call->getCallee(); | |||
3523 | const Expr *fn = callee->IgnoreParens(); | |||
3524 | ||||
3525 | // Must be parenthesized. IgnoreParens() skips __extension__ nodes, | |||
3526 | // too, but for those to appear in the callee, it would have to be | |||
3527 | // parenthesized. | |||
3528 | if (callee == fn) return false; | |||
3529 | ||||
3530 | // Must be an unresolved lookup. | |||
3531 | const UnresolvedLookupExpr *lookup = dyn_cast<UnresolvedLookupExpr>(fn); | |||
3532 | if (!lookup) return false; | |||
3533 | ||||
3534 | assert(!lookup->requiresADL())((!lookup->requiresADL()) ? static_cast<void> (0) : __assert_fail ("!lookup->requiresADL()", "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 3534, __PRETTY_FUNCTION__)); | |||
3535 | ||||
3536 | // Must be an unqualified lookup. | |||
3537 | if (lookup->getQualifier()) return false; | |||
3538 | ||||
3539 | // Must not have found a class member. Note that if one is a class | |||
3540 | // member, they're all class members. | |||
3541 | if (lookup->getNumDecls() > 0 && | |||
3542 | (*lookup->decls_begin())->isCXXClassMember()) | |||
3543 | return false; | |||
3544 | ||||
3545 | // Otherwise, ADL would have been triggered. | |||
3546 | return true; | |||
3547 | } | |||
3548 | ||||
3549 | void CXXNameMangler::mangleCastExpression(const Expr *E, StringRef CastEncoding) { | |||
3550 | const ExplicitCastExpr *ECE = cast<ExplicitCastExpr>(E); | |||
3551 | Out << CastEncoding; | |||
3552 | mangleType(ECE->getType()); | |||
3553 | mangleExpression(ECE->getSubExpr()); | |||
3554 | } | |||
3555 | ||||
3556 | void CXXNameMangler::mangleInitListElements(const InitListExpr *InitList) { | |||
3557 | if (auto *Syntactic = InitList->getSyntacticForm()) | |||
3558 | InitList = Syntactic; | |||
3559 | for (unsigned i = 0, e = InitList->getNumInits(); i != e; ++i) | |||
3560 | mangleExpression(InitList->getInit(i)); | |||
3561 | } | |||
3562 | ||||
3563 | void CXXNameMangler::mangleDeclRefExpr(const NamedDecl *D) { | |||
3564 | switch (D->getKind()) { | |||
3565 | default: | |||
3566 | // <expr-primary> ::= L <mangled-name> E # external name | |||
3567 | Out << 'L'; | |||
3568 | mangle(D); | |||
3569 | Out << 'E'; | |||
3570 | break; | |||
3571 | ||||
3572 | case Decl::ParmVar: | |||
3573 | mangleFunctionParam(cast<ParmVarDecl>(D)); | |||
3574 | break; | |||
3575 | ||||
3576 | case Decl::EnumConstant: { | |||
3577 | const EnumConstantDecl *ED = cast<EnumConstantDecl>(D); | |||
3578 | mangleIntegerLiteral(ED->getType(), ED->getInitVal()); | |||
3579 | break; | |||
3580 | } | |||
3581 | ||||
3582 | case Decl::NonTypeTemplateParm: | |||
3583 | const NonTypeTemplateParmDecl *PD = cast<NonTypeTemplateParmDecl>(D); | |||
3584 | mangleTemplateParameter(PD->getDepth(), PD->getIndex()); | |||
3585 | break; | |||
3586 | } | |||
3587 | } | |||
3588 | ||||
3589 | void CXXNameMangler::mangleExpression(const Expr *E, unsigned Arity) { | |||
3590 | // <expression> ::= <unary operator-name> <expression> | |||
3591 | // ::= <binary operator-name> <expression> <expression> | |||
3592 | // ::= <trinary operator-name> <expression> <expression> <expression> | |||
3593 | // ::= cv <type> expression # conversion with one argument | |||
3594 | // ::= cv <type> _ <expression>* E # conversion with a different number of arguments | |||
3595 | // ::= dc <type> <expression> # dynamic_cast<type> (expression) | |||
3596 | // ::= sc <type> <expression> # static_cast<type> (expression) | |||
3597 | // ::= cc <type> <expression> # const_cast<type> (expression) | |||
3598 | // ::= rc <type> <expression> # reinterpret_cast<type> (expression) | |||
3599 | // ::= st <type> # sizeof (a type) | |||
3600 | // ::= at <type> # alignof (a type) | |||
3601 | // ::= <template-param> | |||
3602 | // ::= <function-param> | |||
3603 | // ::= sr <type> <unqualified-name> # dependent name | |||
3604 | // ::= sr <type> <unqualified-name> <template-args> # dependent template-id | |||
3605 | // ::= ds <expression> <expression> # expr.*expr | |||
3606 | // ::= sZ <template-param> # size of a parameter pack | |||
3607 | // ::= sZ <function-param> # size of a function parameter pack | |||
3608 | // ::= <expr-primary> | |||
3609 | // <expr-primary> ::= L <type> <value number> E # integer literal | |||
3610 | // ::= L <type <value float> E # floating literal | |||
3611 | // ::= L <mangled-name> E # external name | |||
3612 | // ::= fpT # 'this' expression | |||
3613 | QualType ImplicitlyConvertedToType; | |||
3614 | ||||
3615 | recurse: | |||
3616 | switch (E->getStmtClass()) { | |||
3617 | case Expr::NoStmtClass: | |||
3618 | #define ABSTRACT_STMT(Type) | |||
3619 | #define EXPR(Type, Base) | |||
3620 | #define STMT(Type, Base) \ | |||
3621 | case Expr::Type##Class: | |||
3622 | #include "clang/AST/StmtNodes.inc" | |||
3623 | // fallthrough | |||
3624 | ||||
3625 | // These all can only appear in local or variable-initialization | |||
3626 | // contexts and so should never appear in a mangling. | |||
3627 | case Expr::AddrLabelExprClass: | |||
3628 | case Expr::DesignatedInitUpdateExprClass: | |||
3629 | case Expr::ImplicitValueInitExprClass: | |||
3630 | case Expr::ArrayInitLoopExprClass: | |||
3631 | case Expr::ArrayInitIndexExprClass: | |||
3632 | case Expr::NoInitExprClass: | |||
3633 | case Expr::ParenListExprClass: | |||
3634 | case Expr::LambdaExprClass: | |||
3635 | case Expr::MSPropertyRefExprClass: | |||
3636 | case Expr::MSPropertySubscriptExprClass: | |||
3637 | case Expr::TypoExprClass: // This should no longer exist in the AST by now. | |||
3638 | case Expr::OMPArraySectionExprClass: | |||
3639 | case Expr::CXXInheritedCtorInitExprClass: | |||
3640 | llvm_unreachable("unexpected statement kind")::llvm::llvm_unreachable_internal("unexpected statement kind" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 3640); | |||
3641 | ||||
3642 | case Expr::ConstantExprClass: | |||
3643 | E = cast<ConstantExpr>(E)->getSubExpr(); | |||
3644 | goto recurse; | |||
3645 | ||||
3646 | // FIXME: invent manglings for all these. | |||
3647 | case Expr::BlockExprClass: | |||
3648 | case Expr::ChooseExprClass: | |||
3649 | case Expr::CompoundLiteralExprClass: | |||
3650 | case Expr::ExtVectorElementExprClass: | |||
3651 | case Expr::GenericSelectionExprClass: | |||
3652 | case Expr::ObjCEncodeExprClass: | |||
3653 | case Expr::ObjCIsaExprClass: | |||
3654 | case Expr::ObjCIvarRefExprClass: | |||
3655 | case Expr::ObjCMessageExprClass: | |||
3656 | case Expr::ObjCPropertyRefExprClass: | |||
3657 | case Expr::ObjCProtocolExprClass: | |||
3658 | case Expr::ObjCSelectorExprClass: | |||
3659 | case Expr::ObjCStringLiteralClass: | |||
3660 | case Expr::ObjCBoxedExprClass: | |||
3661 | case Expr::ObjCArrayLiteralClass: | |||
3662 | case Expr::ObjCDictionaryLiteralClass: | |||
3663 | case Expr::ObjCSubscriptRefExprClass: | |||
3664 | case Expr::ObjCIndirectCopyRestoreExprClass: | |||
3665 | case Expr::ObjCAvailabilityCheckExprClass: | |||
3666 | case Expr::OffsetOfExprClass: | |||
3667 | case Expr::PredefinedExprClass: | |||
3668 | case Expr::ShuffleVectorExprClass: | |||
3669 | case Expr::ConvertVectorExprClass: | |||
3670 | case Expr::StmtExprClass: | |||
3671 | case Expr::TypeTraitExprClass: | |||
3672 | case Expr::RequiresExprClass: | |||
3673 | case Expr::ArrayTypeTraitExprClass: | |||
3674 | case Expr::ExpressionTraitExprClass: | |||
3675 | case Expr::VAArgExprClass: | |||
3676 | case Expr::CUDAKernelCallExprClass: | |||
3677 | case Expr::AsTypeExprClass: | |||
3678 | case Expr::PseudoObjectExprClass: | |||
3679 | case Expr::AtomicExprClass: | |||
3680 | case Expr::SourceLocExprClass: | |||
3681 | case Expr::FixedPointLiteralClass: | |||
3682 | case Expr::BuiltinBitCastExprClass: | |||
3683 | { | |||
3684 | if (!NullOut) { | |||
3685 | // As bad as this diagnostic is, it's better than crashing. | |||
3686 | DiagnosticsEngine &Diags = Context.getDiags(); | |||
3687 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, | |||
3688 | "cannot yet mangle expression type %0"); | |||
3689 | Diags.Report(E->getExprLoc(), DiagID) | |||
3690 | << E->getStmtClassName() << E->getSourceRange(); | |||
3691 | } | |||
3692 | break; | |||
3693 | } | |||
3694 | ||||
3695 | case Expr::CXXUuidofExprClass: { | |||
3696 | const CXXUuidofExpr *UE = cast<CXXUuidofExpr>(E); | |||
3697 | if (UE->isTypeOperand()) { | |||
3698 | QualType UuidT = UE->getTypeOperand(Context.getASTContext()); | |||
3699 | Out << "u8__uuidoft"; | |||
3700 | mangleType(UuidT); | |||
3701 | } else { | |||
3702 | Expr *UuidExp = UE->getExprOperand(); | |||
3703 | Out << "u8__uuidofz"; | |||
3704 | mangleExpression(UuidExp, Arity); | |||
3705 | } | |||
3706 | break; | |||
3707 | } | |||
3708 | ||||
3709 | // Even gcc-4.5 doesn't mangle this. | |||
3710 | case Expr::BinaryConditionalOperatorClass: { | |||
3711 | DiagnosticsEngine &Diags = Context.getDiags(); | |||
3712 | unsigned DiagID = | |||
3713 | Diags.getCustomDiagID(DiagnosticsEngine::Error, | |||
3714 | "?: operator with omitted middle operand cannot be mangled"); | |||
3715 | Diags.Report(E->getExprLoc(), DiagID) | |||
3716 | << E->getStmtClassName() << E->getSourceRange(); | |||
3717 | break; | |||
3718 | } | |||
3719 | ||||
3720 | // These are used for internal purposes and cannot be meaningfully mangled. | |||
3721 | case Expr::OpaqueValueExprClass: | |||
3722 | llvm_unreachable("cannot mangle opaque value; mangling wrong thing?")::llvm::llvm_unreachable_internal("cannot mangle opaque value; mangling wrong thing?" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 3722); | |||
3723 | ||||
3724 | case Expr::InitListExprClass: { | |||
3725 | Out << "il"; | |||
3726 | mangleInitListElements(cast<InitListExpr>(E)); | |||
3727 | Out << "E"; | |||
3728 | break; | |||
3729 | } | |||
3730 | ||||
3731 | case Expr::DesignatedInitExprClass: { | |||
3732 | auto *DIE = cast<DesignatedInitExpr>(E); | |||
3733 | for (const auto &Designator : DIE->designators()) { | |||
3734 | if (Designator.isFieldDesignator()) { | |||
3735 | Out << "di"; | |||
3736 | mangleSourceName(Designator.getFieldName()); | |||
3737 | } else if (Designator.isArrayDesignator()) { | |||
3738 | Out << "dx"; | |||
3739 | mangleExpression(DIE->getArrayIndex(Designator)); | |||
3740 | } else { | |||
3741 | assert(Designator.isArrayRangeDesignator() &&((Designator.isArrayRangeDesignator() && "unknown designator kind" ) ? static_cast<void> (0) : __assert_fail ("Designator.isArrayRangeDesignator() && \"unknown designator kind\"" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 3742, __PRETTY_FUNCTION__)) | |||
3742 | "unknown designator kind")((Designator.isArrayRangeDesignator() && "unknown designator kind" ) ? static_cast<void> (0) : __assert_fail ("Designator.isArrayRangeDesignator() && \"unknown designator kind\"" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 3742, __PRETTY_FUNCTION__)); | |||
3743 | Out << "dX"; | |||
3744 | mangleExpression(DIE->getArrayRangeStart(Designator)); | |||
3745 | mangleExpression(DIE->getArrayRangeEnd(Designator)); | |||
3746 | } | |||
3747 | } | |||
3748 | mangleExpression(DIE->getInit()); | |||
3749 | break; | |||
3750 | } | |||
3751 | ||||
3752 | case Expr::CXXDefaultArgExprClass: | |||
3753 | mangleExpression(cast<CXXDefaultArgExpr>(E)->getExpr(), Arity); | |||
3754 | break; | |||
3755 | ||||
3756 | case Expr::CXXDefaultInitExprClass: | |||
3757 | mangleExpression(cast<CXXDefaultInitExpr>(E)->getExpr(), Arity); | |||
3758 | break; | |||
3759 | ||||
3760 | case Expr::CXXStdInitializerListExprClass: | |||
3761 | mangleExpression(cast<CXXStdInitializerListExpr>(E)->getSubExpr(), Arity); | |||
3762 | break; | |||
3763 | ||||
3764 | case Expr::SubstNonTypeTemplateParmExprClass: | |||
3765 | mangleExpression(cast<SubstNonTypeTemplateParmExpr>(E)->getReplacement(), | |||
3766 | Arity); | |||
3767 | break; | |||
3768 | ||||
3769 | case Expr::UserDefinedLiteralClass: | |||
3770 | // We follow g++'s approach of mangling a UDL as a call to the literal | |||
3771 | // operator. | |||
3772 | case Expr::CXXMemberCallExprClass: // fallthrough | |||
3773 | case Expr::CallExprClass: { | |||
3774 | const CallExpr *CE = cast<CallExpr>(E); | |||
3775 | ||||
3776 | // <expression> ::= cp <simple-id> <expression>* E | |||
3777 | // We use this mangling only when the call would use ADL except | |||
3778 | // for being parenthesized. Per discussion with David | |||
3779 | // Vandervoorde, 2011.04.25. | |||
3780 | if (isParenthesizedADLCallee(CE)) { | |||
3781 | Out << "cp"; | |||
3782 | // The callee here is a parenthesized UnresolvedLookupExpr with | |||
3783 | // no qualifier and should always get mangled as a <simple-id> | |||
3784 | // anyway. | |||
3785 | ||||
3786 | // <expression> ::= cl <expression>* E | |||
3787 | } else { | |||
3788 | Out << "cl"; | |||
3789 | } | |||
3790 | ||||
3791 | unsigned CallArity = CE->getNumArgs(); | |||
3792 | for (const Expr *Arg : CE->arguments()) | |||
3793 | if (isa<PackExpansionExpr>(Arg)) | |||
3794 | CallArity = UnknownArity; | |||
3795 | ||||
3796 | mangleExpression(CE->getCallee(), CallArity); | |||
3797 | for (const Expr *Arg : CE->arguments()) | |||
3798 | mangleExpression(Arg); | |||
3799 | Out << 'E'; | |||
3800 | break; | |||
3801 | } | |||
3802 | ||||
3803 | case Expr::CXXNewExprClass: { | |||
3804 | const CXXNewExpr *New = cast<CXXNewExpr>(E); | |||
3805 | if (New->isGlobalNew()) Out << "gs"; | |||
3806 | Out << (New->isArray() ? "na" : "nw"); | |||
3807 | for (CXXNewExpr::const_arg_iterator I = New->placement_arg_begin(), | |||
3808 | E = New->placement_arg_end(); I != E; ++I) | |||
3809 | mangleExpression(*I); | |||
3810 | Out << '_'; | |||
3811 | mangleType(New->getAllocatedType()); | |||
3812 | if (New->hasInitializer()) { | |||
3813 | if (New->getInitializationStyle() == CXXNewExpr::ListInit) | |||
3814 | Out << "il"; | |||
3815 | else | |||
3816 | Out << "pi"; | |||
3817 | const Expr *Init = New->getInitializer(); | |||
3818 | if (const CXXConstructExpr *CCE = dyn_cast<CXXConstructExpr>(Init)) { | |||
3819 | // Directly inline the initializers. | |||
3820 | for (CXXConstructExpr::const_arg_iterator I = CCE->arg_begin(), | |||
3821 | E = CCE->arg_end(); | |||
3822 | I != E; ++I) | |||
3823 | mangleExpression(*I); | |||
3824 | } else if (const ParenListExpr *PLE = dyn_cast<ParenListExpr>(Init)) { | |||
3825 | for (unsigned i = 0, e = PLE->getNumExprs(); i != e; ++i) | |||
3826 | mangleExpression(PLE->getExpr(i)); | |||
3827 | } else if (New->getInitializationStyle() == CXXNewExpr::ListInit && | |||
3828 | isa<InitListExpr>(Init)) { | |||
3829 | // Only take InitListExprs apart for list-initialization. | |||
3830 | mangleInitListElements(cast<InitListExpr>(Init)); | |||
3831 | } else | |||
3832 | mangleExpression(Init); | |||
3833 | } | |||
3834 | Out << 'E'; | |||
3835 | break; | |||
3836 | } | |||
3837 | ||||
3838 | case Expr::CXXPseudoDestructorExprClass: { | |||
3839 | const auto *PDE = cast<CXXPseudoDestructorExpr>(E); | |||
3840 | if (const Expr *Base = PDE->getBase()) | |||
3841 | mangleMemberExprBase(Base, PDE->isArrow()); | |||
3842 | NestedNameSpecifier *Qualifier = PDE->getQualifier(); | |||
3843 | if (TypeSourceInfo *ScopeInfo = PDE->getScopeTypeInfo()) { | |||
3844 | if (Qualifier) { | |||
3845 | mangleUnresolvedPrefix(Qualifier, | |||
3846 | /*recursive=*/true); | |||
3847 | mangleUnresolvedTypeOrSimpleId(ScopeInfo->getType()); | |||
3848 | Out << 'E'; | |||
3849 | } else { | |||
3850 | Out << "sr"; | |||
3851 | if (!mangleUnresolvedTypeOrSimpleId(ScopeInfo->getType())) | |||
3852 | Out << 'E'; | |||
3853 | } | |||
3854 | } else if (Qualifier) { | |||
3855 | mangleUnresolvedPrefix(Qualifier); | |||
3856 | } | |||
3857 | // <base-unresolved-name> ::= dn <destructor-name> | |||
3858 | Out << "dn"; | |||
3859 | QualType DestroyedType = PDE->getDestroyedType(); | |||
3860 | mangleUnresolvedTypeOrSimpleId(DestroyedType); | |||
3861 | break; | |||
3862 | } | |||
3863 | ||||
3864 | case Expr::MemberExprClass: { | |||
3865 | const MemberExpr *ME = cast<MemberExpr>(E); | |||
3866 | mangleMemberExpr(ME->getBase(), ME->isArrow(), | |||
3867 | ME->getQualifier(), nullptr, | |||
3868 | ME->getMemberDecl()->getDeclName(), | |||
3869 | ME->getTemplateArgs(), ME->getNumTemplateArgs(), | |||
3870 | Arity); | |||
3871 | break; | |||
3872 | } | |||
3873 | ||||
3874 | case Expr::UnresolvedMemberExprClass: { | |||
3875 | const UnresolvedMemberExpr *ME = cast<UnresolvedMemberExpr>(E); | |||
3876 | mangleMemberExpr(ME->isImplicitAccess() ? nullptr : ME->getBase(), | |||
3877 | ME->isArrow(), ME->getQualifier(), nullptr, | |||
3878 | ME->getMemberName(), | |||
3879 | ME->getTemplateArgs(), ME->getNumTemplateArgs(), | |||
3880 | Arity); | |||
3881 | break; | |||
3882 | } | |||
3883 | ||||
3884 | case Expr::CXXDependentScopeMemberExprClass: { | |||
3885 | const CXXDependentScopeMemberExpr *ME | |||
3886 | = cast<CXXDependentScopeMemberExpr>(E); | |||
3887 | mangleMemberExpr(ME->isImplicitAccess() ? nullptr : ME->getBase(), | |||
3888 | ME->isArrow(), ME->getQualifier(), | |||
3889 | ME->getFirstQualifierFoundInScope(), | |||
3890 | ME->getMember(), | |||
3891 | ME->getTemplateArgs(), ME->getNumTemplateArgs(), | |||
3892 | Arity); | |||
3893 | break; | |||
3894 | } | |||
3895 | ||||
3896 | case Expr::UnresolvedLookupExprClass: { | |||
3897 | const UnresolvedLookupExpr *ULE = cast<UnresolvedLookupExpr>(E); | |||
3898 | mangleUnresolvedName(ULE->getQualifier(), ULE->getName(), | |||
3899 | ULE->getTemplateArgs(), ULE->getNumTemplateArgs(), | |||
3900 | Arity); | |||
3901 | break; | |||
3902 | } | |||
3903 | ||||
3904 | case Expr::CXXUnresolvedConstructExprClass: { | |||
3905 | const CXXUnresolvedConstructExpr *CE = cast<CXXUnresolvedConstructExpr>(E); | |||
3906 | unsigned N = CE->arg_size(); | |||
3907 | ||||
3908 | if (CE->isListInitialization()) { | |||
3909 | assert(N == 1 && "unexpected form for list initialization")((N == 1 && "unexpected form for list initialization" ) ? static_cast<void> (0) : __assert_fail ("N == 1 && \"unexpected form for list initialization\"" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 3909, __PRETTY_FUNCTION__)); | |||
3910 | auto *IL = cast<InitListExpr>(CE->getArg(0)); | |||
3911 | Out << "tl"; | |||
3912 | mangleType(CE->getType()); | |||
3913 | mangleInitListElements(IL); | |||
3914 | Out << "E"; | |||
3915 | return; | |||
3916 | } | |||
3917 | ||||
3918 | Out << "cv"; | |||
3919 | mangleType(CE->getType()); | |||
3920 | if (N != 1) Out << '_'; | |||
3921 | for (unsigned I = 0; I != N; ++I) mangleExpression(CE->getArg(I)); | |||
3922 | if (N != 1) Out << 'E'; | |||
3923 | break; | |||
3924 | } | |||
3925 | ||||
3926 | case Expr::CXXConstructExprClass: { | |||
3927 | const auto *CE = cast<CXXConstructExpr>(E); | |||
3928 | if (!CE->isListInitialization() || CE->isStdInitListInitialization()) { | |||
3929 | assert(((CE->getNumArgs() >= 1 && (CE->getNumArgs() == 1 || isa<CXXDefaultArgExpr>(CE->getArg(1))) && "implicit CXXConstructExpr must have one argument") ? static_cast <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-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 3932, __PRETTY_FUNCTION__)) | |||
3930 | CE->getNumArgs() >= 1 &&((CE->getNumArgs() >= 1 && (CE->getNumArgs() == 1 || isa<CXXDefaultArgExpr>(CE->getArg(1))) && "implicit CXXConstructExpr must have one argument") ? static_cast <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-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 3932, __PRETTY_FUNCTION__)) | |||
3931 | (CE->getNumArgs() == 1 || isa<CXXDefaultArgExpr>(CE->getArg(1))) &&((CE->getNumArgs() >= 1 && (CE->getNumArgs() == 1 || isa<CXXDefaultArgExpr>(CE->getArg(1))) && "implicit CXXConstructExpr must have one argument") ? static_cast <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-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 3932, __PRETTY_FUNCTION__)) | |||
3932 | "implicit CXXConstructExpr must have one argument")((CE->getNumArgs() >= 1 && (CE->getNumArgs() == 1 || isa<CXXDefaultArgExpr>(CE->getArg(1))) && "implicit CXXConstructExpr must have one argument") ? static_cast <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-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 3932, __PRETTY_FUNCTION__)); | |||
3933 | return mangleExpression(cast<CXXConstructExpr>(E)->getArg(0)); | |||
3934 | } | |||
3935 | Out << "il"; | |||
3936 | for (auto *E : CE->arguments()) | |||
3937 | mangleExpression(E); | |||
3938 | Out << "E"; | |||
3939 | break; | |||
3940 | } | |||
3941 | ||||
3942 | case Expr::CXXTemporaryObjectExprClass: { | |||
3943 | const auto *CE = cast<CXXTemporaryObjectExpr>(E); | |||
3944 | unsigned N = CE->getNumArgs(); | |||
3945 | bool List = CE->isListInitialization(); | |||
3946 | ||||
3947 | if (List) | |||
3948 | Out << "tl"; | |||
3949 | else | |||
3950 | Out << "cv"; | |||
3951 | mangleType(CE->getType()); | |||
3952 | if (!List && N != 1) | |||
3953 | Out << '_'; | |||
3954 | if (CE->isStdInitListInitialization()) { | |||
3955 | // We implicitly created a std::initializer_list<T> for the first argument | |||
3956 | // of a constructor of type U in an expression of the form U{a, b, c}. | |||
3957 | // Strip all the semantic gunk off the initializer list. | |||
3958 | auto *SILE = | |||
3959 | cast<CXXStdInitializerListExpr>(CE->getArg(0)->IgnoreImplicit()); | |||
3960 | auto *ILE = cast<InitListExpr>(SILE->getSubExpr()->IgnoreImplicit()); | |||
3961 | mangleInitListElements(ILE); | |||
3962 | } else { | |||
3963 | for (auto *E : CE->arguments()) | |||
3964 | mangleExpression(E); | |||
3965 | } | |||
3966 | if (List || N != 1) | |||
3967 | Out << 'E'; | |||
3968 | break; | |||
3969 | } | |||
3970 | ||||
3971 | case Expr::CXXScalarValueInitExprClass: | |||
3972 | Out << "cv"; | |||
3973 | mangleType(E->getType()); | |||
3974 | Out << "_E"; | |||
3975 | break; | |||
3976 | ||||
3977 | case Expr::CXXNoexceptExprClass: | |||
3978 | Out << "nx"; | |||
3979 | mangleExpression(cast<CXXNoexceptExpr>(E)->getOperand()); | |||
3980 | break; | |||
3981 | ||||
3982 | case Expr::UnaryExprOrTypeTraitExprClass: { | |||
3983 | const UnaryExprOrTypeTraitExpr *SAE = cast<UnaryExprOrTypeTraitExpr>(E); | |||
3984 | ||||
3985 | if (!SAE->isInstantiationDependent()) { | |||
3986 | // Itanium C++ ABI: | |||
3987 | // If the operand of a sizeof or alignof operator is not | |||
3988 | // instantiation-dependent it is encoded as an integer literal | |||
3989 | // reflecting the result of the operator. | |||
3990 | // | |||
3991 | // If the result of the operator is implicitly converted to a known | |||
3992 | // integer type, that type is used for the literal; otherwise, the type | |||
3993 | // of std::size_t or std::ptrdiff_t is used. | |||
3994 | QualType T = (ImplicitlyConvertedToType.isNull() || | |||
3995 | !ImplicitlyConvertedToType->isIntegerType())? SAE->getType() | |||
3996 | : ImplicitlyConvertedToType; | |||
3997 | llvm::APSInt V = SAE->EvaluateKnownConstInt(Context.getASTContext()); | |||
3998 | mangleIntegerLiteral(T, V); | |||
3999 | break; | |||
4000 | } | |||
4001 | ||||
4002 | switch(SAE->getKind()) { | |||
4003 | case UETT_SizeOf: | |||
4004 | Out << 's'; | |||
4005 | break; | |||
4006 | case UETT_PreferredAlignOf: | |||
4007 | case UETT_AlignOf: | |||
4008 | Out << 'a'; | |||
4009 | break; | |||
4010 | case UETT_VecStep: { | |||
4011 | DiagnosticsEngine &Diags = Context.getDiags(); | |||
4012 | unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, | |||
4013 | "cannot yet mangle vec_step expression"); | |||
4014 | Diags.Report(DiagID); | |||
4015 | return; | |||
4016 | } | |||
4017 | case UETT_OpenMPRequiredSimdAlign: { | |||
4018 | DiagnosticsEngine &Diags = Context.getDiags(); | |||
4019 | unsigned DiagID = Diags.getCustomDiagID( | |||
4020 | DiagnosticsEngine::Error, | |||
4021 | "cannot yet mangle __builtin_omp_required_simd_align expression"); | |||
4022 | Diags.Report(DiagID); | |||
4023 | return; | |||
4024 | } | |||
4025 | } | |||
4026 | if (SAE->isArgumentType()) { | |||
4027 | Out << 't'; | |||
4028 | mangleType(SAE->getArgumentType()); | |||
4029 | } else { | |||
4030 | Out << 'z'; | |||
4031 | mangleExpression(SAE->getArgumentExpr()); | |||
4032 | } | |||
4033 | break; | |||
4034 | } | |||
4035 | ||||
4036 | case Expr::CXXThrowExprClass: { | |||
4037 | const CXXThrowExpr *TE = cast<CXXThrowExpr>(E); | |||
4038 | // <expression> ::= tw <expression> # throw expression | |||
4039 | // ::= tr # rethrow | |||
4040 | if (TE->getSubExpr()) { | |||
4041 | Out << "tw"; | |||
4042 | mangleExpression(TE->getSubExpr()); | |||
4043 | } else { | |||
4044 | Out << "tr"; | |||
4045 | } | |||
4046 | break; | |||
4047 | } | |||
4048 | ||||
4049 | case Expr::CXXTypeidExprClass: { | |||
4050 | const CXXTypeidExpr *TIE = cast<CXXTypeidExpr>(E); | |||
4051 | // <expression> ::= ti <type> # typeid (type) | |||
4052 | // ::= te <expression> # typeid (expression) | |||
4053 | if (TIE->isTypeOperand()) { | |||
4054 | Out << "ti"; | |||
4055 | mangleType(TIE->getTypeOperand(Context.getASTContext())); | |||
4056 | } else { | |||
4057 | Out << "te"; | |||
4058 | mangleExpression(TIE->getExprOperand()); | |||
4059 | } | |||
4060 | break; | |||
4061 | } | |||
4062 | ||||
4063 | case Expr::CXXDeleteExprClass: { | |||
4064 | const CXXDeleteExpr *DE = cast<CXXDeleteExpr>(E); | |||
4065 | // <expression> ::= [gs] dl <expression> # [::] delete expr | |||
4066 | // ::= [gs] da <expression> # [::] delete [] expr | |||
4067 | if (DE->isGlobalDelete()) Out << "gs"; | |||
4068 | Out << (DE->isArrayForm() ? "da" : "dl"); | |||
4069 | mangleExpression(DE->getArgument()); | |||
4070 | break; | |||
4071 | } | |||
4072 | ||||
4073 | case Expr::UnaryOperatorClass: { | |||
4074 | const UnaryOperator *UO = cast<UnaryOperator>(E); | |||
4075 | mangleOperatorName(UnaryOperator::getOverloadedOperator(UO->getOpcode()), | |||
4076 | /*Arity=*/1); | |||
4077 | mangleExpression(UO->getSubExpr()); | |||
4078 | break; | |||
4079 | } | |||
4080 | ||||
4081 | case Expr::ArraySubscriptExprClass: { | |||
4082 | const ArraySubscriptExpr *AE = cast<ArraySubscriptExpr>(E); | |||
4083 | ||||
4084 | // Array subscript is treated as a syntactically weird form of | |||
4085 | // binary operator. | |||
4086 | Out << "ix"; | |||
4087 | mangleExpression(AE->getLHS()); | |||
4088 | mangleExpression(AE->getRHS()); | |||
4089 | break; | |||
4090 | } | |||
4091 | ||||
4092 | case Expr::CompoundAssignOperatorClass: // fallthrough | |||
4093 | case Expr::BinaryOperatorClass: { | |||
4094 | const BinaryOperator *BO = cast<BinaryOperator>(E); | |||
4095 | if (BO->getOpcode() == BO_PtrMemD) | |||
4096 | Out << "ds"; | |||
4097 | else | |||
4098 | mangleOperatorName(BinaryOperator::getOverloadedOperator(BO->getOpcode()), | |||
4099 | /*Arity=*/2); | |||
4100 | mangleExpression(BO->getLHS()); | |||
4101 | mangleExpression(BO->getRHS()); | |||
4102 | break; | |||
4103 | } | |||
4104 | ||||
4105 | case Expr::CXXRewrittenBinaryOperatorClass: { | |||
4106 | // The mangled form represents the original syntax. | |||
4107 | CXXRewrittenBinaryOperator::DecomposedForm Decomposed = | |||
4108 | cast<CXXRewrittenBinaryOperator>(E)->getDecomposedForm(); | |||
4109 | mangleOperatorName(BinaryOperator::getOverloadedOperator(Decomposed.Opcode), | |||
4110 | /*Arity=*/2); | |||
4111 | mangleExpression(Decomposed.LHS); | |||
4112 | mangleExpression(Decomposed.RHS); | |||
4113 | break; | |||
4114 | } | |||
4115 | ||||
4116 | case Expr::ConditionalOperatorClass: { | |||
4117 | const ConditionalOperator *CO = cast<ConditionalOperator>(E); | |||
4118 | mangleOperatorName(OO_Conditional, /*Arity=*/3); | |||
4119 | mangleExpression(CO->getCond()); | |||
4120 | mangleExpression(CO->getLHS(), Arity); | |||
4121 | mangleExpression(CO->getRHS(), Arity); | |||
4122 | break; | |||
4123 | } | |||
4124 | ||||
4125 | case Expr::ImplicitCastExprClass: { | |||
4126 | ImplicitlyConvertedToType = E->getType(); | |||
4127 | E = cast<ImplicitCastExpr>(E)->getSubExpr(); | |||
4128 | goto recurse; | |||
4129 | } | |||
4130 | ||||
4131 | case Expr::ObjCBridgedCastExprClass: { | |||
4132 | // Mangle ownership casts as a vendor extended operator __bridge, | |||
4133 | // __bridge_transfer, or __bridge_retain. | |||
4134 | StringRef Kind = cast<ObjCBridgedCastExpr>(E)->getBridgeKindName(); | |||
4135 | Out << "v1U" << Kind.size() << Kind; | |||
4136 | } | |||
4137 | // Fall through to mangle the cast itself. | |||
4138 | LLVM_FALLTHROUGH[[gnu::fallthrough]]; | |||
4139 | ||||
4140 | case Expr::CStyleCastExprClass: | |||
4141 | mangleCastExpression(E, "cv"); | |||
4142 | break; | |||
4143 | ||||
4144 | case Expr::CXXFunctionalCastExprClass: { | |||
4145 | auto *Sub = cast<ExplicitCastExpr>(E)->getSubExpr()->IgnoreImplicit(); | |||
4146 | // FIXME: Add isImplicit to CXXConstructExpr. | |||
4147 | if (auto *CCE = dyn_cast<CXXConstructExpr>(Sub)) | |||
4148 | if (CCE->getParenOrBraceRange().isInvalid()) | |||
4149 | Sub = CCE->getArg(0)->IgnoreImplicit(); | |||
4150 | if (auto *StdInitList = dyn_cast<CXXStdInitializerListExpr>(Sub)) | |||
4151 | Sub = StdInitList->getSubExpr()->IgnoreImplicit(); | |||
4152 | if (auto *IL = dyn_cast<InitListExpr>(Sub)) { | |||
4153 | Out << "tl"; | |||
4154 | mangleType(E->getType()); | |||
4155 | mangleInitListElements(IL); | |||
4156 | Out << "E"; | |||
4157 | } else { | |||
4158 | mangleCastExpression(E, "cv"); | |||
4159 | } | |||
4160 | break; | |||
4161 | } | |||
4162 | ||||
4163 | case Expr::CXXStaticCastExprClass: | |||
4164 | mangleCastExpression(E, "sc"); | |||
4165 | break; | |||
4166 | case Expr::CXXDynamicCastExprClass: | |||
4167 | mangleCastExpression(E, "dc"); | |||
4168 | break; | |||
4169 | case Expr::CXXReinterpretCastExprClass: | |||
4170 | mangleCastExpression(E, "rc"); | |||
4171 | break; | |||
4172 | case Expr::CXXConstCastExprClass: | |||
4173 | mangleCastExpression(E, "cc"); | |||
4174 | break; | |||
4175 | ||||
4176 | case Expr::CXXOperatorCallExprClass: { | |||
4177 | const CXXOperatorCallExpr *CE = cast<CXXOperatorCallExpr>(E); | |||
4178 | unsigned NumArgs = CE->getNumArgs(); | |||
4179 | // A CXXOperatorCallExpr for OO_Arrow models only semantics, not syntax | |||
4180 | // (the enclosing MemberExpr covers the syntactic portion). | |||
4181 | if (CE->getOperator() != OO_Arrow) | |||
4182 | mangleOperatorName(CE->getOperator(), /*Arity=*/NumArgs); | |||
4183 | // Mangle the arguments. | |||
4184 | for (unsigned i = 0; i != NumArgs; ++i) | |||
4185 | mangleExpression(CE->getArg(i)); | |||
4186 | break; | |||
4187 | } | |||
4188 | ||||
4189 | case Expr::ParenExprClass: | |||
4190 | mangleExpression(cast<ParenExpr>(E)->getSubExpr(), Arity); | |||
4191 | break; | |||
4192 | ||||
4193 | ||||
4194 | case Expr::ConceptSpecializationExprClass: { | |||
4195 | // <expr-primary> ::= L <mangled-name> E # external name | |||
4196 | Out << "L_Z"; | |||
4197 | auto *CSE = cast<ConceptSpecializationExpr>(E); | |||
4198 | mangleTemplateName(CSE->getNamedConcept(), | |||
4199 | CSE->getTemplateArguments().data(), | |||
4200 | CSE->getTemplateArguments().size()); | |||
4201 | Out << 'E'; | |||
4202 | break; | |||
4203 | } | |||
4204 | ||||
4205 | case Expr::DeclRefExprClass: | |||
4206 | mangleDeclRefExpr(cast<DeclRefExpr>(E)->getDecl()); | |||
4207 | break; | |||
4208 | ||||
4209 | case Expr::SubstNonTypeTemplateParmPackExprClass: | |||
4210 | // FIXME: not clear how to mangle this! | |||
4211 | // template <unsigned N...> class A { | |||
4212 | // template <class U...> void foo(U (&x)[N]...); | |||
4213 | // }; | |||
4214 | Out << "_SUBSTPACK_"; | |||
4215 | break; | |||
4216 | ||||
4217 | case Expr::FunctionParmPackExprClass: { | |||
4218 | // FIXME: not clear how to mangle this! | |||
4219 | const FunctionParmPackExpr *FPPE = cast<FunctionParmPackExpr>(E); | |||
4220 | Out << "v110_SUBSTPACK"; | |||
4221 | mangleDeclRefExpr(FPPE->getParameterPack()); | |||
4222 | break; | |||
4223 | } | |||
4224 | ||||
4225 | case Expr::DependentScopeDeclRefExprClass: { | |||
4226 | const DependentScopeDeclRefExpr *DRE = cast<DependentScopeDeclRefExpr>(E); | |||
4227 | mangleUnresolvedName(DRE->getQualifier(), DRE->getDeclName(), | |||
4228 | DRE->getTemplateArgs(), DRE->getNumTemplateArgs(), | |||
4229 | Arity); | |||
4230 | break; | |||
4231 | } | |||
4232 | ||||
4233 | case Expr::CXXBindTemporaryExprClass: | |||
4234 | mangleExpression(cast<CXXBindTemporaryExpr>(E)->getSubExpr()); | |||
4235 | break; | |||
4236 | ||||
4237 | case Expr::ExprWithCleanupsClass: | |||
4238 | mangleExpression(cast<ExprWithCleanups>(E)->getSubExpr(), Arity); | |||
4239 | break; | |||
4240 | ||||
4241 | case Expr::FloatingLiteralClass: { | |||
4242 | const FloatingLiteral *FL = cast<FloatingLiteral>(E); | |||
4243 | Out << 'L'; | |||
4244 | mangleType(FL->getType()); | |||
4245 | mangleFloat(FL->getValue()); | |||
4246 | Out << 'E'; | |||
4247 | break; | |||
4248 | } | |||
4249 | ||||
4250 | case Expr::CharacterLiteralClass: | |||
4251 | Out << 'L'; | |||
4252 | mangleType(E->getType()); | |||
4253 | Out << cast<CharacterLiteral>(E)->getValue(); | |||
4254 | Out << 'E'; | |||
4255 | break; | |||
4256 | ||||
4257 | // FIXME. __objc_yes/__objc_no are mangled same as true/false | |||
4258 | case Expr::ObjCBoolLiteralExprClass: | |||
4259 | Out << "Lb"; | |||
4260 | Out << (cast<ObjCBoolLiteralExpr>(E)->getValue() ? '1' : '0'); | |||
4261 | Out << 'E'; | |||
4262 | break; | |||
4263 | ||||
4264 | case Expr::CXXBoolLiteralExprClass: | |||
4265 | Out << "Lb"; | |||
4266 | Out << (cast<CXXBoolLiteralExpr>(E)->getValue() ? '1' : '0'); | |||
4267 | Out << 'E'; | |||
4268 | break; | |||
4269 | ||||
4270 | case Expr::IntegerLiteralClass: { | |||
4271 | llvm::APSInt Value(cast<IntegerLiteral>(E)->getValue()); | |||
4272 | if (E->getType()->isSignedIntegerType()) | |||
4273 | Value.setIsSigned(true); | |||
4274 | mangleIntegerLiteral(E->getType(), Value); | |||
4275 | break; | |||
4276 | } | |||
4277 | ||||
4278 | case Expr::ImaginaryLiteralClass: { | |||
4279 | const ImaginaryLiteral *IE = cast<ImaginaryLiteral>(E); | |||
4280 | // Mangle as if a complex literal. | |||
4281 | // Proposal from David Vandevoorde, 2010.06.30. | |||
4282 | Out << 'L'; | |||
4283 | mangleType(E->getType()); | |||
4284 | if (const FloatingLiteral *Imag = | |||
4285 | dyn_cast<FloatingLiteral>(IE->getSubExpr())) { | |||
4286 | // Mangle a floating-point zero of the appropriate type. | |||
4287 | mangleFloat(llvm::APFloat(Imag->getValue().getSemantics())); | |||
4288 | Out << '_'; | |||
4289 | mangleFloat(Imag->getValue()); | |||
4290 | } else { | |||
4291 | Out << "0_"; | |||
4292 | llvm::APSInt Value(cast<IntegerLiteral>(IE->getSubExpr())->getValue()); | |||
4293 | if (IE->getSubExpr()->getType()->isSignedIntegerType()) | |||
4294 | Value.setIsSigned(true); | |||
4295 | mangleNumber(Value); | |||
4296 | } | |||
4297 | Out << 'E'; | |||
4298 | break; | |||
4299 | } | |||
4300 | ||||
4301 | case Expr::StringLiteralClass: { | |||
4302 | // Revised proposal from David Vandervoorde, 2010.07.15. | |||
4303 | Out << 'L'; | |||
4304 | assert(isa<ConstantArrayType>(E->getType()))((isa<ConstantArrayType>(E->getType())) ? static_cast <void> (0) : __assert_fail ("isa<ConstantArrayType>(E->getType())" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 4304, __PRETTY_FUNCTION__)); | |||
4305 | mangleType(E->getType()); | |||
4306 | Out << 'E'; | |||
4307 | break; | |||
4308 | } | |||
4309 | ||||
4310 | case Expr::GNUNullExprClass: | |||
4311 | // Mangle as if an integer literal 0. | |||
4312 | Out << 'L'; | |||
4313 | mangleType(E->getType()); | |||
4314 | Out << "0E"; | |||
4315 | break; | |||
4316 | ||||
4317 | case Expr::CXXNullPtrLiteralExprClass: { | |||
4318 | Out << "LDnE"; | |||
4319 | break; | |||
4320 | } | |||
4321 | ||||
4322 | case Expr::PackExpansionExprClass: | |||
4323 | Out << "sp"; | |||
4324 | mangleExpression(cast<PackExpansionExpr>(E)->getPattern()); | |||
4325 | break; | |||
4326 | ||||
4327 | case Expr::SizeOfPackExprClass: { | |||
4328 | auto *SPE = cast<SizeOfPackExpr>(E); | |||
4329 | if (SPE->isPartiallySubstituted()) { | |||
4330 | Out << "sP"; | |||
4331 | for (const auto &A : SPE->getPartialArguments()) | |||
4332 | mangleTemplateArg(A); | |||
4333 | Out << "E"; | |||
4334 | break; | |||
4335 | } | |||
4336 | ||||
4337 | Out << "sZ"; | |||
4338 | const NamedDecl *Pack = SPE->getPack(); | |||
4339 | if (const TemplateTypeParmDecl *TTP = dyn_cast<TemplateTypeParmDecl>(Pack)) | |||
4340 | mangleTemplateParameter(TTP->getDepth(), TTP->getIndex()); | |||
4341 | else if (const NonTypeTemplateParmDecl *NTTP | |||
4342 | = dyn_cast<NonTypeTemplateParmDecl>(Pack)) | |||
4343 | mangleTemplateParameter(NTTP->getDepth(), NTTP->getIndex()); | |||
4344 | else if (const TemplateTemplateParmDecl *TempTP | |||
4345 | = dyn_cast<TemplateTemplateParmDecl>(Pack)) | |||
4346 | mangleTemplateParameter(TempTP->getDepth(), TempTP->getIndex()); | |||
4347 | else | |||
4348 | mangleFunctionParam(cast<ParmVarDecl>(Pack)); | |||
4349 | break; | |||
4350 | } | |||
4351 | ||||
4352 | case Expr::MaterializeTemporaryExprClass: { | |||
4353 | mangleExpression(cast<MaterializeTemporaryExpr>(E)->getSubExpr()); | |||
4354 | break; | |||
4355 | } | |||
4356 | ||||
4357 | case Expr::CXXFoldExprClass: { | |||
4358 | auto *FE = cast<CXXFoldExpr>(E); | |||
4359 | if (FE->isLeftFold()) | |||
4360 | Out << (FE->getInit() ? "fL" : "fl"); | |||
4361 | else | |||
4362 | Out << (FE->getInit() ? "fR" : "fr"); | |||
4363 | ||||
4364 | if (FE->getOperator() == BO_PtrMemD) | |||
4365 | Out << "ds"; | |||
4366 | else | |||
4367 | mangleOperatorName( | |||
4368 | BinaryOperator::getOverloadedOperator(FE->getOperator()), | |||
4369 | /*Arity=*/2); | |||
4370 | ||||
4371 | if (FE->getLHS()) | |||
4372 | mangleExpression(FE->getLHS()); | |||
4373 | if (FE->getRHS()) | |||
4374 | mangleExpression(FE->getRHS()); | |||
4375 | break; | |||
4376 | } | |||
4377 | ||||
4378 | case Expr::CXXThisExprClass: | |||
4379 | Out << "fpT"; | |||
4380 | break; | |||
4381 | ||||
4382 | case Expr::CoawaitExprClass: | |||
4383 | // FIXME: Propose a non-vendor mangling. | |||
4384 | Out << "v18co_await"; | |||
4385 | mangleExpression(cast<CoawaitExpr>(E)->getOperand()); | |||
4386 | break; | |||
4387 | ||||
4388 | case Expr::DependentCoawaitExprClass: | |||
4389 | // FIXME: Propose a non-vendor mangling. | |||
4390 | Out << "v18co_await"; | |||
4391 | mangleExpression(cast<DependentCoawaitExpr>(E)->getOperand()); | |||
4392 | break; | |||
4393 | ||||
4394 | case Expr::CoyieldExprClass: | |||
4395 | // FIXME: Propose a non-vendor mangling. | |||
4396 | Out << "v18co_yield"; | |||
4397 | mangleExpression(cast<CoawaitExpr>(E)->getOperand()); | |||
4398 | break; | |||
4399 | } | |||
4400 | } | |||
4401 | ||||
4402 | /// Mangle an expression which refers to a parameter variable. | |||
4403 | /// | |||
4404 | /// <expression> ::= <function-param> | |||
4405 | /// <function-param> ::= fp <top-level CV-qualifiers> _ # L == 0, I == 0 | |||
4406 | /// <function-param> ::= fp <top-level CV-qualifiers> | |||
4407 | /// <parameter-2 non-negative number> _ # L == 0, I > 0 | |||
4408 | /// <function-param> ::= fL <L-1 non-negative number> | |||
4409 | /// p <top-level CV-qualifiers> _ # L > 0, I == 0 | |||
4410 | /// <function-param> ::= fL <L-1 non-negative number> | |||
4411 | /// p <top-level CV-qualifiers> | |||
4412 | /// <I-1 non-negative number> _ # L > 0, I > 0 | |||
4413 | /// | |||
4414 | /// L is the nesting depth of the parameter, defined as 1 if the | |||
4415 | /// parameter comes from the innermost function prototype scope | |||
4416 | /// enclosing the current context, 2 if from the next enclosing | |||
4417 | /// function prototype scope, and so on, with one special case: if | |||
4418 | /// we've processed the full parameter clause for the innermost | |||
4419 | /// function type, then L is one less. This definition conveniently | |||
4420 | /// makes it irrelevant whether a function's result type was written | |||
4421 | /// trailing or leading, but is otherwise overly complicated; the | |||
4422 | /// numbering was first designed without considering references to | |||
4423 | /// parameter in locations other than return types, and then the | |||
4424 | /// mangling had to be generalized without changing the existing | |||
4425 | /// manglings. | |||
4426 | /// | |||
4427 | /// I is the zero-based index of the parameter within its parameter | |||
4428 | /// declaration clause. Note that the original ABI document describes | |||
4429 | /// this using 1-based ordinals. | |||
4430 | void CXXNameMangler::mangleFunctionParam(const ParmVarDecl *parm) { | |||
4431 | unsigned parmDepth = parm->getFunctionScopeDepth(); | |||
4432 | unsigned parmIndex = parm->getFunctionScopeIndex(); | |||
4433 | ||||
4434 | // Compute 'L'. | |||
4435 | // parmDepth does not include the declaring function prototype. | |||
4436 | // FunctionTypeDepth does account for that. | |||
4437 | assert(parmDepth < FunctionTypeDepth.getDepth())((parmDepth < FunctionTypeDepth.getDepth()) ? static_cast< void> (0) : __assert_fail ("parmDepth < FunctionTypeDepth.getDepth()" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 4437, __PRETTY_FUNCTION__)); | |||
4438 | unsigned nestingDepth = FunctionTypeDepth.getDepth() - parmDepth; | |||
4439 | if (FunctionTypeDepth.isInResultType()) | |||
4440 | nestingDepth--; | |||
4441 | ||||
4442 | if (nestingDepth == 0) { | |||
4443 | Out << "fp"; | |||
4444 | } else { | |||
4445 | Out << "fL" << (nestingDepth - 1) << 'p'; | |||
4446 | } | |||
4447 | ||||
4448 | // Top-level qualifiers. We don't have to worry about arrays here, | |||
4449 | // because parameters declared as arrays should already have been | |||
4450 | // transformed to have pointer type. FIXME: apparently these don't | |||
4451 | // get mangled if used as an rvalue of a known non-class type? | |||
4452 | assert(!parm->getType()->isArrayType()((!parm->getType()->isArrayType() && "parameter's type is still an array type?" ) ? static_cast<void> (0) : __assert_fail ("!parm->getType()->isArrayType() && \"parameter's type is still an array type?\"" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 4453, __PRETTY_FUNCTION__)) | |||
4453 | && "parameter's type is still an array type?")((!parm->getType()->isArrayType() && "parameter's type is still an array type?" ) ? static_cast<void> (0) : __assert_fail ("!parm->getType()->isArrayType() && \"parameter's type is still an array type?\"" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 4453, __PRETTY_FUNCTION__)); | |||
4454 | ||||
4455 | if (const DependentAddressSpaceType *DAST = | |||
4456 | dyn_cast<DependentAddressSpaceType>(parm->getType())) { | |||
4457 | mangleQualifiers(DAST->getPointeeType().getQualifiers(), DAST); | |||
4458 | } else { | |||
4459 | mangleQualifiers(parm->getType().getQualifiers()); | |||
4460 | } | |||
4461 | ||||
4462 | // Parameter index. | |||
4463 | if (parmIndex != 0) { | |||
4464 | Out << (parmIndex - 1); | |||
4465 | } | |||
4466 | Out << '_'; | |||
4467 | } | |||
4468 | ||||
4469 | void CXXNameMangler::mangleCXXCtorType(CXXCtorType T, | |||
4470 | const CXXRecordDecl *InheritedFrom) { | |||
4471 | // <ctor-dtor-name> ::= C1 # complete object constructor | |||
4472 | // ::= C2 # base object constructor | |||
4473 | // ::= CI1 <type> # complete inheriting constructor | |||
4474 | // ::= CI2 <type> # base inheriting constructor | |||
4475 | // | |||
4476 | // In addition, C5 is a comdat name with C1 and C2 in it. | |||
4477 | Out << 'C'; | |||
4478 | if (InheritedFrom) | |||
4479 | Out << 'I'; | |||
4480 | switch (T) { | |||
4481 | case Ctor_Complete: | |||
4482 | Out << '1'; | |||
4483 | break; | |||
4484 | case Ctor_Base: | |||
4485 | Out << '2'; | |||
4486 | break; | |||
4487 | case Ctor_Comdat: | |||
4488 | Out << '5'; | |||
4489 | break; | |||
4490 | case Ctor_DefaultClosure: | |||
4491 | case Ctor_CopyingClosure: | |||
4492 | 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-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 4492); | |||
4493 | } | |||
4494 | if (InheritedFrom) | |||
4495 | mangleName(InheritedFrom); | |||
4496 | } | |||
4497 | ||||
4498 | void CXXNameMangler::mangleCXXDtorType(CXXDtorType T) { | |||
4499 | // <ctor-dtor-name> ::= D0 # deleting destructor | |||
4500 | // ::= D1 # complete object destructor | |||
4501 | // ::= D2 # base object destructor | |||
4502 | // | |||
4503 | // In addition, D5 is a comdat name with D1, D2 and, if virtual, D0 in it. | |||
4504 | switch (T) { | |||
4505 | case Dtor_Deleting: | |||
4506 | Out << "D0"; | |||
4507 | break; | |||
4508 | case Dtor_Complete: | |||
4509 | Out << "D1"; | |||
4510 | break; | |||
4511 | case Dtor_Base: | |||
4512 | Out << "D2"; | |||
4513 | break; | |||
4514 | case Dtor_Comdat: | |||
4515 | Out << "D5"; | |||
4516 | break; | |||
4517 | } | |||
4518 | } | |||
4519 | ||||
4520 | void CXXNameMangler::mangleTemplateArgs(const TemplateArgumentLoc *TemplateArgs, | |||
4521 | unsigned NumTemplateArgs) { | |||
4522 | // <template-args> ::= I <template-arg>+ E | |||
4523 | Out << 'I'; | |||
4524 | for (unsigned i = 0; i != NumTemplateArgs; ++i) | |||
4525 | mangleTemplateArg(TemplateArgs[i].getArgument()); | |||
4526 | Out << 'E'; | |||
4527 | } | |||
4528 | ||||
4529 | void CXXNameMangler::mangleTemplateArgs(const TemplateArgumentList &AL) { | |||
4530 | // <template-args> ::= I <template-arg>+ E | |||
4531 | Out << 'I'; | |||
4532 | for (unsigned i = 0, e = AL.size(); i != e; ++i) | |||
4533 | mangleTemplateArg(AL[i]); | |||
4534 | Out << 'E'; | |||
4535 | } | |||
4536 | ||||
4537 | void CXXNameMangler::mangleTemplateArgs(const TemplateArgument *TemplateArgs, | |||
4538 | unsigned NumTemplateArgs) { | |||
4539 | // <template-args> ::= I <template-arg>+ E | |||
4540 | Out << 'I'; | |||
4541 | for (unsigned i = 0; i != NumTemplateArgs; ++i) | |||
4542 | mangleTemplateArg(TemplateArgs[i]); | |||
4543 | Out << 'E'; | |||
4544 | } | |||
4545 | ||||
4546 | void CXXNameMangler::mangleTemplateArg(TemplateArgument A) { | |||
4547 | // <template-arg> ::= <type> # type or template | |||
4548 | // ::= X <expression> E # expression | |||
4549 | // ::= <expr-primary> # simple expressions | |||
4550 | // ::= J <template-arg>* E # argument pack | |||
4551 | if (!A.isInstantiationDependent() || A.isDependent()) | |||
4552 | A = Context.getASTContext().getCanonicalTemplateArgument(A); | |||
4553 | ||||
4554 | switch (A.getKind()) { | |||
4555 | case TemplateArgument::Null: | |||
4556 | llvm_unreachable("Cannot mangle NULL template argument")::llvm::llvm_unreachable_internal("Cannot mangle NULL template argument" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 4556); | |||
4557 | ||||
4558 | case TemplateArgument::Type: | |||
4559 | mangleType(A.getAsType()); | |||
4560 | break; | |||
4561 | case TemplateArgument::Template: | |||
4562 | // This is mangled as <type>. | |||
4563 | mangleType(A.getAsTemplate()); | |||
4564 | break; | |||
4565 | case TemplateArgument::TemplateExpansion: | |||
4566 | // <type> ::= Dp <type> # pack expansion (C++0x) | |||
4567 | Out << "Dp"; | |||
4568 | mangleType(A.getAsTemplateOrTemplatePattern()); | |||
4569 | break; | |||
4570 | case TemplateArgument::Expression: { | |||
4571 | // It's possible to end up with a DeclRefExpr here in certain | |||
4572 | // dependent cases, in which case we should mangle as a | |||
4573 | // declaration. | |||
4574 | const Expr *E = A.getAsExpr()->IgnoreParenImpCasts(); | |||
4575 | if (const DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(E)) { | |||
4576 | const ValueDecl *D = DRE->getDecl(); | |||
4577 | if (isa<VarDecl>(D) || isa<FunctionDecl>(D)) { | |||
4578 | Out << 'L'; | |||
4579 | mangle(D); | |||
4580 | Out << 'E'; | |||
4581 | break; | |||
4582 | } | |||
4583 | } | |||
4584 | ||||
4585 | Out << 'X'; | |||
4586 | mangleExpression(E); | |||
4587 | Out << 'E'; | |||
4588 | break; | |||
4589 | } | |||
4590 | case TemplateArgument::Integral: | |||
4591 | mangleIntegerLiteral(A.getIntegralType(), A.getAsIntegral()); | |||
4592 | break; | |||
4593 | case TemplateArgument::Declaration: { | |||
4594 | // <expr-primary> ::= L <mangled-name> E # external name | |||
4595 | // Clang produces AST's where pointer-to-member-function expressions | |||
4596 | // and pointer-to-function expressions are represented as a declaration not | |||
4597 | // an expression. We compensate for it here to produce the correct mangling. | |||
4598 | ValueDecl *D = A.getAsDecl(); | |||
4599 | bool compensateMangling = !A.getParamTypeForDecl()->isReferenceType(); | |||
4600 | if (compensateMangling) { | |||
4601 | Out << 'X'; | |||
4602 | mangleOperatorName(OO_Amp, 1); | |||
4603 | } | |||
4604 | ||||
4605 | Out << 'L'; | |||
4606 | // References to external entities use the mangled name; if the name would | |||
4607 | // not normally be mangled then mangle it as unqualified. | |||
4608 | mangle(D); | |||
4609 | Out << 'E'; | |||
4610 | ||||
4611 | if (compensateMangling) | |||
4612 | Out << 'E'; | |||
4613 | ||||
4614 | break; | |||
4615 | } | |||
4616 | case TemplateArgument::NullPtr: { | |||
4617 | // <expr-primary> ::= L <type> 0 E | |||
4618 | Out << 'L'; | |||
4619 | mangleType(A.getNullPtrType()); | |||
4620 | Out << "0E"; | |||
4621 | break; | |||
4622 | } | |||
4623 | case TemplateArgument::Pack: { | |||
4624 | // <template-arg> ::= J <template-arg>* E | |||
4625 | Out << 'J'; | |||
4626 | for (const auto &P : A.pack_elements()) | |||
4627 | mangleTemplateArg(P); | |||
4628 | Out << 'E'; | |||
4629 | } | |||
4630 | } | |||
4631 | } | |||
4632 | ||||
4633 | void CXXNameMangler::mangleTemplateParameter(unsigned Depth, unsigned Index) { | |||
4634 | // <template-param> ::= T_ # first template parameter | |||
4635 | // ::= T <parameter-2 non-negative number> _ | |||
4636 | // ::= TL <L-1 non-negative number> __ | |||
4637 | // ::= TL <L-1 non-negative number> _ | |||
4638 | // <parameter-2 non-negative number> _ | |||
4639 | // | |||
4640 | // The latter two manglings are from a proposal here: | |||
4641 | // https://github.com/itanium-cxx-abi/cxx-abi/issues/31#issuecomment-528122117 | |||
4642 | Out << 'T'; | |||
4643 | if (Depth != 0) | |||
4644 | Out << 'L' << (Depth - 1) << '_'; | |||
4645 | if (Index != 0) | |||
4646 | Out << (Index - 1); | |||
4647 | Out << '_'; | |||
4648 | } | |||
4649 | ||||
4650 | void CXXNameMangler::mangleSeqID(unsigned SeqID) { | |||
4651 | if (SeqID == 1) | |||
4652 | Out << '0'; | |||
4653 | else if (SeqID > 1) { | |||
4654 | SeqID--; | |||
4655 | ||||
4656 | // <seq-id> is encoded in base-36, using digits and upper case letters. | |||
4657 | char Buffer[7]; // log(2**32) / log(36) ~= 7 | |||
4658 | MutableArrayRef<char> BufferRef(Buffer); | |||
4659 | MutableArrayRef<char>::reverse_iterator I = BufferRef.rbegin(); | |||
4660 | ||||
4661 | for (; SeqID != 0; SeqID /= 36) { | |||
4662 | unsigned C = SeqID % 36; | |||
4663 | *I++ = (C < 10 ? '0' + C : 'A' + C - 10); | |||
4664 | } | |||
4665 | ||||
4666 | Out.write(I.base(), I - BufferRef.rbegin()); | |||
4667 | } | |||
4668 | Out << '_'; | |||
4669 | } | |||
4670 | ||||
4671 | void CXXNameMangler::mangleExistingSubstitution(TemplateName tname) { | |||
4672 | bool result = mangleSubstitution(tname); | |||
4673 | assert(result && "no existing substitution for template name")((result && "no existing substitution for template name" ) ? static_cast<void> (0) : __assert_fail ("result && \"no existing substitution for template name\"" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 4673, __PRETTY_FUNCTION__)); | |||
4674 | (void) result; | |||
4675 | } | |||
4676 | ||||
4677 | // <substitution> ::= S <seq-id> _ | |||
4678 | // ::= S_ | |||
4679 | bool CXXNameMangler::mangleSubstitution(const NamedDecl *ND) { | |||
4680 | // Try one of the standard substitutions first. | |||
4681 | if (mangleStandardSubstitution(ND)) | |||
4682 | return true; | |||
4683 | ||||
4684 | ND = cast<NamedDecl>(ND->getCanonicalDecl()); | |||
4685 | return mangleSubstitution(reinterpret_cast<uintptr_t>(ND)); | |||
4686 | } | |||
4687 | ||||
4688 | /// Determine whether the given type has any qualifiers that are relevant for | |||
4689 | /// substitutions. | |||
4690 | static bool hasMangledSubstitutionQualifiers(QualType T) { | |||
4691 | Qualifiers Qs = T.getQualifiers(); | |||
4692 | return Qs.getCVRQualifiers() || Qs.hasAddressSpace() || Qs.hasUnaligned(); | |||
4693 | } | |||
4694 | ||||
4695 | bool CXXNameMangler::mangleSubstitution(QualType T) { | |||
4696 | if (!hasMangledSubstitutionQualifiers(T)) { | |||
4697 | if (const RecordType *RT = T->getAs<RecordType>()) | |||
4698 | return mangleSubstitution(RT->getDecl()); | |||
4699 | } | |||
4700 | ||||
4701 | uintptr_t TypePtr = reinterpret_cast<uintptr_t>(T.getAsOpaquePtr()); | |||
4702 | ||||
4703 | return mangleSubstitution(TypePtr); | |||
4704 | } | |||
4705 | ||||
4706 | bool CXXNameMangler::mangleSubstitution(TemplateName Template) { | |||
4707 | if (TemplateDecl *TD = Template.getAsTemplateDecl()) | |||
4708 | return mangleSubstitution(TD); | |||
4709 | ||||
4710 | Template = Context.getASTContext().getCanonicalTemplateName(Template); | |||
4711 | return mangleSubstitution( | |||
4712 | reinterpret_cast<uintptr_t>(Template.getAsVoidPointer())); | |||
4713 | } | |||
4714 | ||||
4715 | bool CXXNameMangler::mangleSubstitution(uintptr_t Ptr) { | |||
4716 | llvm::DenseMap<uintptr_t, unsigned>::iterator I = Substitutions.find(Ptr); | |||
4717 | if (I == Substitutions.end()) | |||
4718 | return false; | |||
4719 | ||||
4720 | unsigned SeqID = I->second; | |||
4721 | Out << 'S'; | |||
4722 | mangleSeqID(SeqID); | |||
4723 | ||||
4724 | return true; | |||
4725 | } | |||
4726 | ||||
4727 | static bool isCharType(QualType T) { | |||
4728 | if (T.isNull()) | |||
4729 | return false; | |||
4730 | ||||
4731 | return T->isSpecificBuiltinType(BuiltinType::Char_S) || | |||
4732 | T->isSpecificBuiltinType(BuiltinType::Char_U); | |||
4733 | } | |||
4734 | ||||
4735 | /// Returns whether a given type is a template specialization of a given name | |||
4736 | /// with a single argument of type char. | |||
4737 | static bool isCharSpecialization(QualType T, const char *Name) { | |||
4738 | if (T.isNull()) | |||
4739 | return false; | |||
4740 | ||||
4741 | const RecordType *RT = T->getAs<RecordType>(); | |||
4742 | if (!RT) | |||
4743 | return false; | |||
4744 | ||||
4745 | const ClassTemplateSpecializationDecl *SD = | |||
4746 | dyn_cast<ClassTemplateSpecializationDecl>(RT->getDecl()); | |||
4747 | if (!SD) | |||
4748 | return false; | |||
4749 | ||||
4750 | if (!isStdNamespace(getEffectiveDeclContext(SD))) | |||
4751 | return false; | |||
4752 | ||||
4753 | const TemplateArgumentList &TemplateArgs = SD->getTemplateArgs(); | |||
4754 | if (TemplateArgs.size() != 1) | |||
4755 | return false; | |||
4756 | ||||
4757 | if (!isCharType(TemplateArgs[0].getAsType())) | |||
4758 | return false; | |||
4759 | ||||
4760 | return SD->getIdentifier()->getName() == Name; | |||
4761 | } | |||
4762 | ||||
4763 | template <std::size_t StrLen> | |||
4764 | static bool isStreamCharSpecialization(const ClassTemplateSpecializationDecl*SD, | |||
4765 | const char (&Str)[StrLen]) { | |||
4766 | if (!SD->getIdentifier()->isStr(Str)) | |||
4767 | return false; | |||
4768 | ||||
4769 | const TemplateArgumentList &TemplateArgs = SD->getTemplateArgs(); | |||
4770 | if (TemplateArgs.size() != 2) | |||
4771 | return false; | |||
4772 | ||||
4773 | if (!isCharType(TemplateArgs[0].getAsType())) | |||
4774 | return false; | |||
4775 | ||||
4776 | if (!isCharSpecialization(TemplateArgs[1].getAsType(), "char_traits")) | |||
4777 | return false; | |||
4778 | ||||
4779 | return true; | |||
4780 | } | |||
4781 | ||||
4782 | bool CXXNameMangler::mangleStandardSubstitution(const NamedDecl *ND) { | |||
4783 | // <substitution> ::= St # ::std:: | |||
4784 | if (const NamespaceDecl *NS = dyn_cast<NamespaceDecl>(ND)) { | |||
4785 | if (isStd(NS)) { | |||
4786 | Out << "St"; | |||
4787 | return true; | |||
4788 | } | |||
4789 | } | |||
4790 | ||||
4791 | if (const ClassTemplateDecl *TD = dyn_cast<ClassTemplateDecl>(ND)) { | |||
4792 | if (!isStdNamespace(getEffectiveDeclContext(TD))) | |||
4793 | return false; | |||
4794 | ||||
4795 | // <substitution> ::= Sa # ::std::allocator | |||
4796 | if (TD->getIdentifier()->isStr("allocator")) { | |||
4797 | Out << "Sa"; | |||
4798 | return true; | |||
4799 | } | |||
4800 | ||||
4801 | // <<substitution> ::= Sb # ::std::basic_string | |||
4802 | if (TD->getIdentifier()->isStr("basic_string")) { | |||
4803 | Out << "Sb"; | |||
4804 | return true; | |||
4805 | } | |||
4806 | } | |||
4807 | ||||
4808 | if (const ClassTemplateSpecializationDecl *SD = | |||
4809 | dyn_cast<ClassTemplateSpecializationDecl>(ND)) { | |||
4810 | if (!isStdNamespace(getEffectiveDeclContext(SD))) | |||
4811 | return false; | |||
4812 | ||||
4813 | // <substitution> ::= Ss # ::std::basic_string<char, | |||
4814 | // ::std::char_traits<char>, | |||
4815 | // ::std::allocator<char> > | |||
4816 | if (SD->getIdentifier()->isStr("basic_string")) { | |||
4817 | const TemplateArgumentList &TemplateArgs = SD->getTemplateArgs(); | |||
4818 | ||||
4819 | if (TemplateArgs.size() != 3) | |||
4820 | return false; | |||
4821 | ||||
4822 | if (!isCharType(TemplateArgs[0].getAsType())) | |||
4823 | return false; | |||
4824 | ||||
4825 | if (!isCharSpecialization(TemplateArgs[1].getAsType(), "char_traits")) | |||
4826 | return false; | |||
4827 | ||||
4828 | if (!isCharSpecialization(TemplateArgs[2].getAsType(), "allocator")) | |||
4829 | return false; | |||
4830 | ||||
4831 | Out << "Ss"; | |||
4832 | return true; | |||
4833 | } | |||
4834 | ||||
4835 | // <substitution> ::= Si # ::std::basic_istream<char, | |||
4836 | // ::std::char_traits<char> > | |||
4837 | if (isStreamCharSpecialization(SD, "basic_istream")) { | |||
4838 | Out << "Si"; | |||
4839 | return true; | |||
4840 | } | |||
4841 | ||||
4842 | // <substitution> ::= So # ::std::basic_ostream<char, | |||
4843 | // ::std::char_traits<char> > | |||
4844 | if (isStreamCharSpecialization(SD, "basic_ostream")) { | |||
4845 | Out << "So"; | |||
4846 | return true; | |||
4847 | } | |||
4848 | ||||
4849 | // <substitution> ::= Sd # ::std::basic_iostream<char, | |||
4850 | // ::std::char_traits<char> > | |||
4851 | if (isStreamCharSpecialization(SD, "basic_iostream")) { | |||
4852 | Out << "Sd"; | |||
4853 | return true; | |||
4854 | } | |||
4855 | } | |||
4856 | return false; | |||
4857 | } | |||
4858 | ||||
4859 | void CXXNameMangler::addSubstitution(QualType T) { | |||
4860 | if (!hasMangledSubstitutionQualifiers(T)) { | |||
4861 | if (const RecordType *RT = T->getAs<RecordType>()) { | |||
4862 | addSubstitution(RT->getDecl()); | |||
4863 | return; | |||
4864 | } | |||
4865 | } | |||
4866 | ||||
4867 | uintptr_t TypePtr = reinterpret_cast<uintptr_t>(T.getAsOpaquePtr()); | |||
4868 | addSubstitution(TypePtr); | |||
4869 | } | |||
4870 | ||||
4871 | void CXXNameMangler::addSubstitution(TemplateName Template) { | |||
4872 | if (TemplateDecl *TD = Template.getAsTemplateDecl()) | |||
4873 | return addSubstitution(TD); | |||
4874 | ||||
4875 | Template = Context.getASTContext().getCanonicalTemplateName(Template); | |||
4876 | addSubstitution(reinterpret_cast<uintptr_t>(Template.getAsVoidPointer())); | |||
4877 | } | |||
4878 | ||||
4879 | void CXXNameMangler::addSubstitution(uintptr_t Ptr) { | |||
4880 | assert(!Substitutions.count(Ptr) && "Substitution already exists!")((!Substitutions.count(Ptr) && "Substitution already exists!" ) ? static_cast<void> (0) : __assert_fail ("!Substitutions.count(Ptr) && \"Substitution already exists!\"" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 4880, __PRETTY_FUNCTION__)); | |||
4881 | Substitutions[Ptr] = SeqID++; | |||
4882 | } | |||
4883 | ||||
4884 | void CXXNameMangler::extendSubstitutions(CXXNameMangler* Other) { | |||
4885 | assert(Other->SeqID >= SeqID && "Must be superset of substitutions!")((Other->SeqID >= SeqID && "Must be superset of substitutions!" ) ? static_cast<void> (0) : __assert_fail ("Other->SeqID >= SeqID && \"Must be superset of substitutions!\"" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 4885, __PRETTY_FUNCTION__)); | |||
4886 | if (Other->SeqID > SeqID) { | |||
4887 | Substitutions.swap(Other->Substitutions); | |||
4888 | SeqID = Other->SeqID; | |||
4889 | } | |||
4890 | } | |||
4891 | ||||
4892 | CXXNameMangler::AbiTagList | |||
4893 | CXXNameMangler::makeFunctionReturnTypeTags(const FunctionDecl *FD) { | |||
4894 | // When derived abi tags are disabled there is no need to make any list. | |||
4895 | if (DisableDerivedAbiTags) | |||
4896 | return AbiTagList(); | |||
4897 | ||||
4898 | llvm::raw_null_ostream NullOutStream; | |||
4899 | CXXNameMangler TrackReturnTypeTags(*this, NullOutStream); | |||
4900 | TrackReturnTypeTags.disableDerivedAbiTags(); | |||
4901 | ||||
4902 | const FunctionProtoType *Proto = | |||
4903 | cast<FunctionProtoType>(FD->getType()->getAs<FunctionType>()); | |||
4904 | FunctionTypeDepthState saved = TrackReturnTypeTags.FunctionTypeDepth.push(); | |||
4905 | TrackReturnTypeTags.FunctionTypeDepth.enterResultType(); | |||
4906 | TrackReturnTypeTags.mangleType(Proto->getReturnType()); | |||
4907 | TrackReturnTypeTags.FunctionTypeDepth.leaveResultType(); | |||
4908 | TrackReturnTypeTags.FunctionTypeDepth.pop(saved); | |||
4909 | ||||
4910 | return TrackReturnTypeTags.AbiTagsRoot.getSortedUniqueUsedAbiTags(); | |||
4911 | } | |||
4912 | ||||
4913 | CXXNameMangler::AbiTagList | |||
4914 | CXXNameMangler::makeVariableTypeTags(const VarDecl *VD) { | |||
4915 | // When derived abi tags are disabled there is no need to make any list. | |||
4916 | if (DisableDerivedAbiTags) | |||
4917 | return AbiTagList(); | |||
4918 | ||||
4919 | llvm::raw_null_ostream NullOutStream; | |||
4920 | CXXNameMangler TrackVariableType(*this, NullOutStream); | |||
4921 | TrackVariableType.disableDerivedAbiTags(); | |||
4922 | ||||
4923 | TrackVariableType.mangleType(VD->getType()); | |||
4924 | ||||
4925 | return TrackVariableType.AbiTagsRoot.getSortedUniqueUsedAbiTags(); | |||
4926 | } | |||
4927 | ||||
4928 | bool CXXNameMangler::shouldHaveAbiTags(ItaniumMangleContextImpl &C, | |||
4929 | const VarDecl *VD) { | |||
4930 | llvm::raw_null_ostream NullOutStream; | |||
4931 | CXXNameMangler TrackAbiTags(C, NullOutStream, nullptr, true); | |||
4932 | TrackAbiTags.mangle(VD); | |||
4933 | return TrackAbiTags.AbiTagsRoot.getUsedAbiTags().size(); | |||
4934 | } | |||
4935 | ||||
4936 | // | |||
4937 | ||||
4938 | /// Mangles the name of the declaration D and emits that name to the given | |||
4939 | /// output stream. | |||
4940 | /// | |||
4941 | /// If the declaration D requires a mangled name, this routine will emit that | |||
4942 | /// mangled name to \p os and return true. Otherwise, \p os will be unchanged | |||
4943 | /// and this routine will return false. In this case, the caller should just | |||
4944 | /// emit the identifier of the declaration (\c D->getIdentifier()) as its | |||
4945 | /// name. | |||
4946 | void ItaniumMangleContextImpl::mangleCXXName(const NamedDecl *D, | |||
4947 | raw_ostream &Out) { | |||
4948 | assert((isa<FunctionDecl>(D) || isa<VarDecl>(D)) &&(((isa<FunctionDecl>(D) || isa<VarDecl>(D)) && "Invalid mangleName() call, argument is not a variable or function!" ) ? static_cast<void> (0) : __assert_fail ("(isa<FunctionDecl>(D) || isa<VarDecl>(D)) && \"Invalid mangleName() call, argument is not a variable or function!\"" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 4949, __PRETTY_FUNCTION__)) | |||
4949 | "Invalid mangleName() call, argument is not a variable or function!")(((isa<FunctionDecl>(D) || isa<VarDecl>(D)) && "Invalid mangleName() call, argument is not a variable or function!" ) ? static_cast<void> (0) : __assert_fail ("(isa<FunctionDecl>(D) || isa<VarDecl>(D)) && \"Invalid mangleName() call, argument is not a variable or function!\"" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 4949, __PRETTY_FUNCTION__)); | |||
4950 | assert(!isa<CXXConstructorDecl>(D) && !isa<CXXDestructorDecl>(D) &&((!isa<CXXConstructorDecl>(D) && !isa<CXXDestructorDecl >(D) && "Invalid mangleName() call on 'structor decl!" ) ? static_cast<void> (0) : __assert_fail ("!isa<CXXConstructorDecl>(D) && !isa<CXXDestructorDecl>(D) && \"Invalid mangleName() call on 'structor decl!\"" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 4951, __PRETTY_FUNCTION__)) | |||
4951 | "Invalid mangleName() call on 'structor decl!")((!isa<CXXConstructorDecl>(D) && !isa<CXXDestructorDecl >(D) && "Invalid mangleName() call on 'structor decl!" ) ? static_cast<void> (0) : __assert_fail ("!isa<CXXConstructorDecl>(D) && !isa<CXXDestructorDecl>(D) && \"Invalid mangleName() call on 'structor decl!\"" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 4951, __PRETTY_FUNCTION__)); | |||
4952 | ||||
4953 | PrettyStackTraceDecl CrashInfo(D, SourceLocation(), | |||
4954 | getASTContext().getSourceManager(), | |||
4955 | "Mangling declaration"); | |||
4956 | ||||
4957 | CXXNameMangler Mangler(*this, Out, D); | |||
4958 | Mangler.mangle(D); | |||
4959 | } | |||
4960 | ||||
4961 | void ItaniumMangleContextImpl::mangleCXXCtor(const CXXConstructorDecl *D, | |||
4962 | CXXCtorType Type, | |||
4963 | raw_ostream &Out) { | |||
4964 | CXXNameMangler Mangler(*this, Out, D, Type); | |||
4965 | Mangler.mangle(D); | |||
4966 | } | |||
4967 | ||||
4968 | void ItaniumMangleContextImpl::mangleCXXDtor(const CXXDestructorDecl *D, | |||
4969 | CXXDtorType Type, | |||
4970 | raw_ostream &Out) { | |||
4971 | CXXNameMangler Mangler(*this, Out, D, Type); | |||
4972 | Mangler.mangle(D); | |||
4973 | } | |||
4974 | ||||
4975 | void ItaniumMangleContextImpl::mangleCXXCtorComdat(const CXXConstructorDecl *D, | |||
4976 | raw_ostream &Out) { | |||
4977 | CXXNameMangler Mangler(*this, Out, D, Ctor_Comdat); | |||
4978 | Mangler.mangle(D); | |||
4979 | } | |||
4980 | ||||
4981 | void ItaniumMangleContextImpl::mangleCXXDtorComdat(const CXXDestructorDecl *D, | |||
4982 | raw_ostream &Out) { | |||
4983 | CXXNameMangler Mangler(*this, Out, D, Dtor_Comdat); | |||
4984 | Mangler.mangle(D); | |||
4985 | } | |||
4986 | ||||
4987 | void ItaniumMangleContextImpl::mangleThunk(const CXXMethodDecl *MD, | |||
4988 | const ThunkInfo &Thunk, | |||
4989 | raw_ostream &Out) { | |||
4990 | // <special-name> ::= T <call-offset> <base encoding> | |||
4991 | // # base is the nominal target function of thunk | |||
4992 | // <special-name> ::= Tc <call-offset> <call-offset> <base encoding> | |||
4993 | // # base is the nominal target function of thunk | |||
4994 | // # first call-offset is 'this' adjustment | |||
4995 | // # second call-offset is result adjustment | |||
4996 | ||||
4997 | assert(!isa<CXXDestructorDecl>(MD) &&((!isa<CXXDestructorDecl>(MD) && "Use mangleCXXDtor for destructor decls!" ) ? static_cast<void> (0) : __assert_fail ("!isa<CXXDestructorDecl>(MD) && \"Use mangleCXXDtor for destructor decls!\"" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 4998, __PRETTY_FUNCTION__)) | |||
4998 | "Use mangleCXXDtor for destructor decls!")((!isa<CXXDestructorDecl>(MD) && "Use mangleCXXDtor for destructor decls!" ) ? static_cast<void> (0) : __assert_fail ("!isa<CXXDestructorDecl>(MD) && \"Use mangleCXXDtor for destructor decls!\"" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 4998, __PRETTY_FUNCTION__)); | |||
4999 | CXXNameMangler Mangler(*this, Out); | |||
5000 | Mangler.getStream() << "_ZT"; | |||
5001 | if (!Thunk.Return.isEmpty()) | |||
5002 | Mangler.getStream() << 'c'; | |||
5003 | ||||
5004 | // Mangle the 'this' pointer adjustment. | |||
5005 | Mangler.mangleCallOffset(Thunk.This.NonVirtual, | |||
5006 | Thunk.This.Virtual.Itanium.VCallOffsetOffset); | |||
5007 | ||||
5008 | // Mangle the return pointer adjustment if there is one. | |||
5009 | if (!Thunk.Return.isEmpty()) | |||
5010 | Mangler.mangleCallOffset(Thunk.Return.NonVirtual, | |||
5011 | Thunk.Return.Virtual.Itanium.VBaseOffsetOffset); | |||
5012 | ||||
5013 | Mangler.mangleFunctionEncoding(MD); | |||
5014 | } | |||
5015 | ||||
5016 | void ItaniumMangleContextImpl::mangleCXXDtorThunk( | |||
5017 | const CXXDestructorDecl *DD, CXXDtorType Type, | |||
5018 | const ThisAdjustment &ThisAdjustment, raw_ostream &Out) { | |||
5019 | // <special-name> ::= T <call-offset> <base encoding> | |||
5020 | // # base is the nominal target function of thunk | |||
5021 | CXXNameMangler Mangler(*this, Out, DD, Type); | |||
5022 | Mangler.getStream() << "_ZT"; | |||
5023 | ||||
5024 | // Mangle the 'this' pointer adjustment. | |||
5025 | Mangler.mangleCallOffset(ThisAdjustment.NonVirtual, | |||
5026 | ThisAdjustment.Virtual.Itanium.VCallOffsetOffset); | |||
5027 | ||||
5028 | Mangler.mangleFunctionEncoding(DD); | |||
5029 | } | |||
5030 | ||||
5031 | /// Returns the mangled name for a guard variable for the passed in VarDecl. | |||
5032 | void ItaniumMangleContextImpl::mangleStaticGuardVariable(const VarDecl *D, | |||
5033 | raw_ostream &Out) { | |||
5034 | // <special-name> ::= GV <object name> # Guard variable for one-time | |||
5035 | // # initialization | |||
5036 | CXXNameMangler Mangler(*this, Out); | |||
5037 | // GCC 5.3.0 doesn't emit derived ABI tags for local names but that seems to | |||
5038 | // be a bug that is fixed in trunk. | |||
5039 | Mangler.getStream() << "_ZGV"; | |||
5040 | Mangler.mangleName(D); | |||
5041 | } | |||
5042 | ||||
5043 | void ItaniumMangleContextImpl::mangleDynamicInitializer(const VarDecl *MD, | |||
5044 | raw_ostream &Out) { | |||
5045 | // These symbols are internal in the Itanium ABI, so the names don't matter. | |||
5046 | // Clang has traditionally used this symbol and allowed LLVM to adjust it to | |||
5047 | // avoid duplicate symbols. | |||
5048 | Out << "__cxx_global_var_init"; | |||
5049 | } | |||
5050 | ||||
5051 | void ItaniumMangleContextImpl::mangleDynamicAtExitDestructor(const VarDecl *D, | |||
5052 | raw_ostream &Out) { | |||
5053 | // Prefix the mangling of D with __dtor_. | |||
5054 | CXXNameMangler Mangler(*this, Out); | |||
5055 | Mangler.getStream() << "__dtor_"; | |||
5056 | if (shouldMangleDeclName(D)) | |||
5057 | Mangler.mangle(D); | |||
5058 | else | |||
5059 | Mangler.getStream() << D->getName(); | |||
5060 | } | |||
5061 | ||||
5062 | void ItaniumMangleContextImpl::mangleSEHFilterExpression( | |||
5063 | const NamedDecl *EnclosingDecl, raw_ostream &Out) { | |||
5064 | CXXNameMangler Mangler(*this, Out); | |||
5065 | Mangler.getStream() << "__filt_"; | |||
5066 | if (shouldMangleDeclName(EnclosingDecl)) | |||
5067 | Mangler.mangle(EnclosingDecl); | |||
5068 | else | |||
5069 | Mangler.getStream() << EnclosingDecl->getName(); | |||
5070 | } | |||
5071 | ||||
5072 | void ItaniumMangleContextImpl::mangleSEHFinallyBlock( | |||
5073 | const NamedDecl *EnclosingDecl, raw_ostream &Out) { | |||
5074 | CXXNameMangler Mangler(*this, Out); | |||
5075 | Mangler.getStream() << "__fin_"; | |||
5076 | if (shouldMangleDeclName(EnclosingDecl)) | |||
5077 | Mangler.mangle(EnclosingDecl); | |||
5078 | else | |||
5079 | Mangler.getStream() << EnclosingDecl->getName(); | |||
5080 | } | |||
5081 | ||||
5082 | void ItaniumMangleContextImpl::mangleItaniumThreadLocalInit(const VarDecl *D, | |||
5083 | raw_ostream &Out) { | |||
5084 | // <special-name> ::= TH <object name> | |||
5085 | CXXNameMangler Mangler(*this, Out); | |||
5086 | Mangler.getStream() << "_ZTH"; | |||
5087 | Mangler.mangleName(D); | |||
5088 | } | |||
5089 | ||||
5090 | void | |||
5091 | ItaniumMangleContextImpl::mangleItaniumThreadLocalWrapper(const VarDecl *D, | |||
5092 | raw_ostream &Out) { | |||
5093 | // <special-name> ::= TW <object name> | |||
5094 | CXXNameMangler Mangler(*this, Out); | |||
5095 | Mangler.getStream() << "_ZTW"; | |||
5096 | Mangler.mangleName(D); | |||
5097 | } | |||
5098 | ||||
5099 | void ItaniumMangleContextImpl::mangleReferenceTemporary(const VarDecl *D, | |||
5100 | unsigned ManglingNumber, | |||
5101 | raw_ostream &Out) { | |||
5102 | // We match the GCC mangling here. | |||
5103 | // <special-name> ::= GR <object name> | |||
5104 | CXXNameMangler Mangler(*this, Out); | |||
5105 | Mangler.getStream() << "_ZGR"; | |||
5106 | Mangler.mangleName(D); | |||
5107 | assert(ManglingNumber > 0 && "Reference temporary mangling number is zero!")((ManglingNumber > 0 && "Reference temporary mangling number is zero!" ) ? static_cast<void> (0) : __assert_fail ("ManglingNumber > 0 && \"Reference temporary mangling number is zero!\"" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 5107, __PRETTY_FUNCTION__)); | |||
5108 | Mangler.mangleSeqID(ManglingNumber - 1); | |||
5109 | } | |||
5110 | ||||
5111 | void ItaniumMangleContextImpl::mangleCXXVTable(const CXXRecordDecl *RD, | |||
5112 | raw_ostream &Out) { | |||
5113 | // <special-name> ::= TV <type> # virtual table | |||
5114 | CXXNameMangler Mangler(*this, Out); | |||
5115 | Mangler.getStream() << "_ZTV"; | |||
5116 | Mangler.mangleNameOrStandardSubstitution(RD); | |||
5117 | } | |||
5118 | ||||
5119 | void ItaniumMangleContextImpl::mangleCXXVTT(const CXXRecordDecl *RD, | |||
5120 | raw_ostream &Out) { | |||
5121 | // <special-name> ::= TT <type> # VTT structure | |||
5122 | CXXNameMangler Mangler(*this, Out); | |||
5123 | Mangler.getStream() << "_ZTT"; | |||
5124 | Mangler.mangleNameOrStandardSubstitution(RD); | |||
5125 | } | |||
5126 | ||||
5127 | void ItaniumMangleContextImpl::mangleCXXCtorVTable(const CXXRecordDecl *RD, | |||
5128 | int64_t Offset, | |||
5129 | const CXXRecordDecl *Type, | |||
5130 | raw_ostream &Out) { | |||
5131 | // <special-name> ::= TC <type> <offset number> _ <base type> | |||
5132 | CXXNameMangler Mangler(*this, Out); | |||
5133 | Mangler.getStream() << "_ZTC"; | |||
5134 | Mangler.mangleNameOrStandardSubstitution(RD); | |||
5135 | Mangler.getStream() << Offset; | |||
5136 | Mangler.getStream() << '_'; | |||
5137 | Mangler.mangleNameOrStandardSubstitution(Type); | |||
5138 | } | |||
5139 | ||||
5140 | void ItaniumMangleContextImpl::mangleCXXRTTI(QualType Ty, raw_ostream &Out) { | |||
5141 | // <special-name> ::= TI <type> # typeinfo structure | |||
5142 | assert(!Ty.hasQualifiers() && "RTTI info cannot have top-level qualifiers")((!Ty.hasQualifiers() && "RTTI info cannot have top-level qualifiers" ) ? static_cast<void> (0) : __assert_fail ("!Ty.hasQualifiers() && \"RTTI info cannot have top-level qualifiers\"" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 5142, __PRETTY_FUNCTION__)); | |||
5143 | CXXNameMangler Mangler(*this, Out); | |||
5144 | Mangler.getStream() << "_ZTI"; | |||
5145 | Mangler.mangleType(Ty); | |||
5146 | } | |||
5147 | ||||
5148 | void ItaniumMangleContextImpl::mangleCXXRTTIName(QualType Ty, | |||
5149 | raw_ostream &Out) { | |||
5150 | // <special-name> ::= TS <type> # typeinfo name (null terminated byte string) | |||
5151 | CXXNameMangler Mangler(*this, Out); | |||
5152 | Mangler.getStream() << "_ZTS"; | |||
5153 | Mangler.mangleType(Ty); | |||
5154 | } | |||
5155 | ||||
5156 | void ItaniumMangleContextImpl::mangleTypeName(QualType Ty, raw_ostream &Out) { | |||
5157 | mangleCXXRTTIName(Ty, Out); | |||
5158 | } | |||
5159 | ||||
5160 | void ItaniumMangleContextImpl::mangleStringLiteral(const StringLiteral *, raw_ostream &) { | |||
5161 | llvm_unreachable("Can't mangle string literals")::llvm::llvm_unreachable_internal("Can't mangle string literals" , "/build/llvm-toolchain-snapshot-11~++20200304121622+a8706b22a62/clang/lib/AST/ItaniumMangle.cpp" , 5161); | |||
5162 | } | |||
5163 | ||||
5164 | void ItaniumMangleContextImpl::mangleLambdaSig(const CXXRecordDecl *Lambda, | |||
5165 | raw_ostream &Out) { | |||
5166 | CXXNameMangler Mangler(*this, Out); | |||
5167 | Mangler.mangleLambdaSig(Lambda); | |||
| ||||
5168 | } | |||
5169 | ||||
5170 | ItaniumMangleContext * | |||
5171 | ItaniumMangleContext::create(ASTContext &Context, DiagnosticsEngine &Diags) { | |||
5172 | return new ItaniumMangleContextImpl(Context, Diags); | |||
5173 | } |