forked from OSchip/llvm-project
4719 lines
158 KiB
C++
4719 lines
158 KiB
C++
//===--- ItaniumMangle.cpp - Itanium C++ Name Mangling ----------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// Implements C++ name mangling according to the Itanium C++ ABI,
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// which is used in GCC 3.2 and newer (and many compilers that are
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// ABI-compatible with GCC):
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//
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// http://mentorembedded.github.io/cxx-abi/abi.html#mangling
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//
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//===----------------------------------------------------------------------===//
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#include "clang/AST/Mangle.h"
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#include "clang/AST/ASTContext.h"
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#include "clang/AST/Attr.h"
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#include "clang/AST/Decl.h"
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#include "clang/AST/DeclCXX.h"
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#include "clang/AST/DeclObjC.h"
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#include "clang/AST/DeclOpenMP.h"
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#include "clang/AST/DeclTemplate.h"
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#include "clang/AST/Expr.h"
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#include "clang/AST/ExprCXX.h"
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#include "clang/AST/ExprObjC.h"
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#include "clang/AST/TypeLoc.h"
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#include "clang/Basic/ABI.h"
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#include "clang/Basic/SourceManager.h"
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#include "clang/Basic/TargetInfo.h"
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#include "llvm/ADT/StringExtras.h"
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#include "llvm/Support/ErrorHandling.h"
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#include "llvm/Support/raw_ostream.h"
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#define MANGLE_CHECKER 0
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#if MANGLE_CHECKER
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#include <cxxabi.h>
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#endif
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using namespace clang;
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namespace {
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/// Retrieve the declaration context that should be used when mangling the given
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/// declaration.
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static const DeclContext *getEffectiveDeclContext(const Decl *D) {
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// The ABI assumes that lambda closure types that occur within
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// default arguments live in the context of the function. However, due to
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// the way in which Clang parses and creates function declarations, this is
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// not the case: the lambda closure type ends up living in the context
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// where the function itself resides, because the function declaration itself
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// had not yet been created. Fix the context here.
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if (const CXXRecordDecl *RD = dyn_cast<CXXRecordDecl>(D)) {
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if (RD->isLambda())
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if (ParmVarDecl *ContextParam
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= dyn_cast_or_null<ParmVarDecl>(RD->getLambdaContextDecl()))
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return ContextParam->getDeclContext();
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}
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// Perform the same check for block literals.
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if (const BlockDecl *BD = dyn_cast<BlockDecl>(D)) {
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if (ParmVarDecl *ContextParam
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= dyn_cast_or_null<ParmVarDecl>(BD->getBlockManglingContextDecl()))
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return ContextParam->getDeclContext();
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}
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const DeclContext *DC = D->getDeclContext();
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if (isa<CapturedDecl>(DC) || isa<OMPDeclareReductionDecl>(DC)) {
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return getEffectiveDeclContext(cast<Decl>(DC));
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}
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if (const auto *VD = dyn_cast<VarDecl>(D))
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if (VD->isExternC())
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return VD->getASTContext().getTranslationUnitDecl();
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if (const auto *FD = dyn_cast<FunctionDecl>(D))
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if (FD->isExternC())
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return FD->getASTContext().getTranslationUnitDecl();
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return DC->getRedeclContext();
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}
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static const DeclContext *getEffectiveParentContext(const DeclContext *DC) {
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return getEffectiveDeclContext(cast<Decl>(DC));
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}
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static bool isLocalContainerContext(const DeclContext *DC) {
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return isa<FunctionDecl>(DC) || isa<ObjCMethodDecl>(DC) || isa<BlockDecl>(DC);
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}
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static const RecordDecl *GetLocalClassDecl(const Decl *D) {
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const DeclContext *DC = getEffectiveDeclContext(D);
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while (!DC->isNamespace() && !DC->isTranslationUnit()) {
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if (isLocalContainerContext(DC))
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return dyn_cast<RecordDecl>(D);
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D = cast<Decl>(DC);
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DC = getEffectiveDeclContext(D);
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}
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return nullptr;
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}
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static const FunctionDecl *getStructor(const FunctionDecl *fn) {
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if (const FunctionTemplateDecl *ftd = fn->getPrimaryTemplate())
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return ftd->getTemplatedDecl();
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return fn;
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}
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static const NamedDecl *getStructor(const NamedDecl *decl) {
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const FunctionDecl *fn = dyn_cast_or_null<FunctionDecl>(decl);
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return (fn ? getStructor(fn) : decl);
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}
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static bool isLambda(const NamedDecl *ND) {
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const CXXRecordDecl *Record = dyn_cast<CXXRecordDecl>(ND);
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if (!Record)
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return false;
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return Record->isLambda();
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}
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static const unsigned UnknownArity = ~0U;
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class ItaniumMangleContextImpl : public ItaniumMangleContext {
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typedef std::pair<const DeclContext*, IdentifierInfo*> DiscriminatorKeyTy;
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llvm::DenseMap<DiscriminatorKeyTy, unsigned> Discriminator;
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llvm::DenseMap<const NamedDecl*, unsigned> Uniquifier;
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public:
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explicit ItaniumMangleContextImpl(ASTContext &Context,
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DiagnosticsEngine &Diags)
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: ItaniumMangleContext(Context, Diags) {}
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/// @name Mangler Entry Points
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/// @{
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bool shouldMangleCXXName(const NamedDecl *D) override;
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bool shouldMangleStringLiteral(const StringLiteral *) override {
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return false;
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}
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void mangleCXXName(const NamedDecl *D, raw_ostream &) override;
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void mangleThunk(const CXXMethodDecl *MD, const ThunkInfo &Thunk,
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raw_ostream &) override;
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void mangleCXXDtorThunk(const CXXDestructorDecl *DD, CXXDtorType Type,
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const ThisAdjustment &ThisAdjustment,
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raw_ostream &) override;
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void mangleReferenceTemporary(const VarDecl *D, unsigned ManglingNumber,
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raw_ostream &) override;
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void mangleCXXVTable(const CXXRecordDecl *RD, raw_ostream &) override;
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void mangleCXXVTT(const CXXRecordDecl *RD, raw_ostream &) override;
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void mangleCXXCtorVTable(const CXXRecordDecl *RD, int64_t Offset,
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const CXXRecordDecl *Type, raw_ostream &) override;
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void mangleCXXRTTI(QualType T, raw_ostream &) override;
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void mangleCXXRTTIName(QualType T, raw_ostream &) override;
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void mangleTypeName(QualType T, raw_ostream &) override;
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void mangleCXXCtor(const CXXConstructorDecl *D, CXXCtorType Type,
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raw_ostream &) override;
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void mangleCXXDtor(const CXXDestructorDecl *D, CXXDtorType Type,
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raw_ostream &) override;
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void mangleCXXCtorComdat(const CXXConstructorDecl *D, raw_ostream &) override;
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void mangleCXXDtorComdat(const CXXDestructorDecl *D, raw_ostream &) override;
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void mangleStaticGuardVariable(const VarDecl *D, raw_ostream &) override;
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void mangleDynamicInitializer(const VarDecl *D, raw_ostream &Out) override;
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void mangleDynamicAtExitDestructor(const VarDecl *D,
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raw_ostream &Out) override;
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void mangleSEHFilterExpression(const NamedDecl *EnclosingDecl,
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raw_ostream &Out) override;
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void mangleSEHFinallyBlock(const NamedDecl *EnclosingDecl,
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raw_ostream &Out) override;
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void mangleItaniumThreadLocalInit(const VarDecl *D, raw_ostream &) override;
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void mangleItaniumThreadLocalWrapper(const VarDecl *D,
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raw_ostream &) override;
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void mangleStringLiteral(const StringLiteral *, raw_ostream &) override;
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bool getNextDiscriminator(const NamedDecl *ND, unsigned &disc) {
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// Lambda closure types are already numbered.
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if (isLambda(ND))
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return false;
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// Anonymous tags are already numbered.
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if (const TagDecl *Tag = dyn_cast<TagDecl>(ND)) {
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if (Tag->getName().empty() && !Tag->getTypedefNameForAnonDecl())
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return false;
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}
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// Use the canonical number for externally visible decls.
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if (ND->isExternallyVisible()) {
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unsigned discriminator = getASTContext().getManglingNumber(ND);
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if (discriminator == 1)
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return false;
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disc = discriminator - 2;
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return true;
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}
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// Make up a reasonable number for internal decls.
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unsigned &discriminator = Uniquifier[ND];
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if (!discriminator) {
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const DeclContext *DC = getEffectiveDeclContext(ND);
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discriminator = ++Discriminator[std::make_pair(DC, ND->getIdentifier())];
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}
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if (discriminator == 1)
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return false;
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disc = discriminator-2;
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return true;
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}
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/// @}
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};
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/// Manage the mangling of a single name.
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class CXXNameMangler {
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ItaniumMangleContextImpl &Context;
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raw_ostream &Out;
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bool NullOut = false;
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/// In the "DisableDerivedAbiTags" mode derived ABI tags are not calculated.
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/// This mode is used when mangler creates another mangler recursively to
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/// calculate ABI tags for the function return value or the variable type.
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/// Also it is required to avoid infinite recursion in some cases.
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bool DisableDerivedAbiTags = false;
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/// The "structor" is the top-level declaration being mangled, if
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/// that's not a template specialization; otherwise it's the pattern
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/// for that specialization.
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const NamedDecl *Structor;
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unsigned StructorType;
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/// The next substitution sequence number.
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unsigned SeqID;
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class FunctionTypeDepthState {
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unsigned Bits;
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enum { InResultTypeMask = 1 };
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public:
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FunctionTypeDepthState() : Bits(0) {}
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/// The number of function types we're inside.
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unsigned getDepth() const {
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return Bits >> 1;
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}
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/// True if we're in the return type of the innermost function type.
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bool isInResultType() const {
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return Bits & InResultTypeMask;
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}
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FunctionTypeDepthState push() {
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FunctionTypeDepthState tmp = *this;
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Bits = (Bits & ~InResultTypeMask) + 2;
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return tmp;
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}
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void enterResultType() {
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Bits |= InResultTypeMask;
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}
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void leaveResultType() {
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Bits &= ~InResultTypeMask;
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}
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void pop(FunctionTypeDepthState saved) {
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assert(getDepth() == saved.getDepth() + 1);
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Bits = saved.Bits;
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}
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} FunctionTypeDepth;
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// abi_tag is a gcc attribute, taking one or more strings called "tags".
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// The goal is to annotate against which version of a library an object was
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// built and to be able to provide backwards compatibility ("dual abi").
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// For more information see docs/ItaniumMangleAbiTags.rst.
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typedef SmallVector<StringRef, 4> AbiTagList;
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// State to gather all implicit and explicit tags used in a mangled name.
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// Must always have an instance of this while emitting any name to keep
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// track.
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class AbiTagState final {
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public:
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explicit AbiTagState(AbiTagState *&Head) : LinkHead(Head) {
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Parent = LinkHead;
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LinkHead = this;
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}
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// No copy, no move.
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AbiTagState(const AbiTagState &) = delete;
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AbiTagState &operator=(const AbiTagState &) = delete;
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~AbiTagState() { pop(); }
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void write(raw_ostream &Out, const NamedDecl *ND,
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const AbiTagList *AdditionalAbiTags) {
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ND = cast<NamedDecl>(ND->getCanonicalDecl());
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if (!isa<FunctionDecl>(ND) && !isa<VarDecl>(ND)) {
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assert(
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!AdditionalAbiTags &&
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"only function and variables need a list of additional abi tags");
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if (const auto *NS = dyn_cast<NamespaceDecl>(ND)) {
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if (const auto *AbiTag = NS->getAttr<AbiTagAttr>()) {
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UsedAbiTags.insert(UsedAbiTags.end(), AbiTag->tags().begin(),
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AbiTag->tags().end());
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}
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// Don't emit abi tags for namespaces.
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return;
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}
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}
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AbiTagList TagList;
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if (const auto *AbiTag = ND->getAttr<AbiTagAttr>()) {
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UsedAbiTags.insert(UsedAbiTags.end(), AbiTag->tags().begin(),
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AbiTag->tags().end());
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TagList.insert(TagList.end(), AbiTag->tags().begin(),
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AbiTag->tags().end());
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}
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if (AdditionalAbiTags) {
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UsedAbiTags.insert(UsedAbiTags.end(), AdditionalAbiTags->begin(),
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AdditionalAbiTags->end());
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TagList.insert(TagList.end(), AdditionalAbiTags->begin(),
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AdditionalAbiTags->end());
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}
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std::sort(TagList.begin(), TagList.end());
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TagList.erase(std::unique(TagList.begin(), TagList.end()), TagList.end());
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writeSortedUniqueAbiTags(Out, TagList);
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}
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const AbiTagList &getUsedAbiTags() const { return UsedAbiTags; }
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void setUsedAbiTags(const AbiTagList &AbiTags) {
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UsedAbiTags = AbiTags;
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}
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const AbiTagList &getEmittedAbiTags() const {
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return EmittedAbiTags;
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}
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const AbiTagList &getSortedUniqueUsedAbiTags() {
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std::sort(UsedAbiTags.begin(), UsedAbiTags.end());
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UsedAbiTags.erase(std::unique(UsedAbiTags.begin(), UsedAbiTags.end()),
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UsedAbiTags.end());
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return UsedAbiTags;
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}
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private:
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//! All abi tags used implicitly or explicitly.
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AbiTagList UsedAbiTags;
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//! All explicit abi tags (i.e. not from namespace).
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AbiTagList EmittedAbiTags;
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AbiTagState *&LinkHead;
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AbiTagState *Parent = nullptr;
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void pop() {
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assert(LinkHead == this &&
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"abi tag link head must point to us on destruction");
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if (Parent) {
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Parent->UsedAbiTags.insert(Parent->UsedAbiTags.end(),
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UsedAbiTags.begin(), UsedAbiTags.end());
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Parent->EmittedAbiTags.insert(Parent->EmittedAbiTags.end(),
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EmittedAbiTags.begin(),
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EmittedAbiTags.end());
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}
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LinkHead = Parent;
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}
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void writeSortedUniqueAbiTags(raw_ostream &Out, const AbiTagList &AbiTags) {
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for (const auto &Tag : AbiTags) {
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EmittedAbiTags.push_back(Tag);
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Out << "B";
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Out << Tag.size();
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Out << Tag;
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}
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}
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};
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AbiTagState *AbiTags = nullptr;
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AbiTagState AbiTagsRoot;
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llvm::DenseMap<uintptr_t, unsigned> Substitutions;
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ASTContext &getASTContext() const { return Context.getASTContext(); }
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public:
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CXXNameMangler(ItaniumMangleContextImpl &C, raw_ostream &Out_,
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const NamedDecl *D = nullptr, bool NullOut_ = false)
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: Context(C), Out(Out_), NullOut(NullOut_), Structor(getStructor(D)),
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StructorType(0), SeqID(0), AbiTagsRoot(AbiTags) {
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// These can't be mangled without a ctor type or dtor type.
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assert(!D || (!isa<CXXDestructorDecl>(D) &&
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!isa<CXXConstructorDecl>(D)));
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}
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CXXNameMangler(ItaniumMangleContextImpl &C, raw_ostream &Out_,
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const CXXConstructorDecl *D, CXXCtorType Type)
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: Context(C), Out(Out_), Structor(getStructor(D)), StructorType(Type),
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SeqID(0), AbiTagsRoot(AbiTags) { }
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CXXNameMangler(ItaniumMangleContextImpl &C, raw_ostream &Out_,
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const CXXDestructorDecl *D, CXXDtorType Type)
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: Context(C), Out(Out_), Structor(getStructor(D)), StructorType(Type),
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SeqID(0), AbiTagsRoot(AbiTags) { }
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CXXNameMangler(CXXNameMangler &Outer, raw_ostream &Out_)
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: Context(Outer.Context), Out(Out_), NullOut(false),
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Structor(Outer.Structor), StructorType(Outer.StructorType),
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SeqID(Outer.SeqID), FunctionTypeDepth(Outer.FunctionTypeDepth),
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AbiTagsRoot(AbiTags), Substitutions(Outer.Substitutions) {}
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CXXNameMangler(CXXNameMangler &Outer, llvm::raw_null_ostream &Out_)
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: Context(Outer.Context), Out(Out_), NullOut(true),
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Structor(Outer.Structor), StructorType(Outer.StructorType),
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SeqID(Outer.SeqID), FunctionTypeDepth(Outer.FunctionTypeDepth),
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AbiTagsRoot(AbiTags), Substitutions(Outer.Substitutions) {}
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#if MANGLE_CHECKER
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~CXXNameMangler() {
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if (Out.str()[0] == '\01')
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return;
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int status = 0;
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char *result = abi::__cxa_demangle(Out.str().str().c_str(), 0, 0, &status);
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assert(status == 0 && "Could not demangle mangled name!");
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free(result);
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}
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#endif
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raw_ostream &getStream() { return Out; }
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void disableDerivedAbiTags() { DisableDerivedAbiTags = true; }
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static bool shouldHaveAbiTags(ItaniumMangleContextImpl &C, const VarDecl *VD);
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void mangle(const NamedDecl *D);
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void mangleCallOffset(int64_t NonVirtual, int64_t Virtual);
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void mangleNumber(const llvm::APSInt &I);
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void mangleNumber(int64_t Number);
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void mangleFloat(const llvm::APFloat &F);
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void mangleFunctionEncoding(const FunctionDecl *FD);
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void mangleSeqID(unsigned SeqID);
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void mangleName(const NamedDecl *ND);
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void mangleType(QualType T);
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void mangleNameOrStandardSubstitution(const NamedDecl *ND);
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private:
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bool mangleSubstitution(const NamedDecl *ND);
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bool mangleSubstitution(QualType T);
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bool mangleSubstitution(TemplateName Template);
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bool mangleSubstitution(uintptr_t Ptr);
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void mangleExistingSubstitution(TemplateName name);
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bool mangleStandardSubstitution(const NamedDecl *ND);
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void addSubstitution(const NamedDecl *ND) {
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ND = cast<NamedDecl>(ND->getCanonicalDecl());
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addSubstitution(reinterpret_cast<uintptr_t>(ND));
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}
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void addSubstitution(QualType T);
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void addSubstitution(TemplateName Template);
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void addSubstitution(uintptr_t Ptr);
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// Destructive copy substitutions from other mangler.
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void extendSubstitutions(CXXNameMangler* Other);
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void mangleUnresolvedPrefix(NestedNameSpecifier *qualifier,
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bool recursive = false);
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void mangleUnresolvedName(NestedNameSpecifier *qualifier,
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DeclarationName name,
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unsigned KnownArity = UnknownArity);
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void mangleFunctionEncodingBareType(const FunctionDecl *FD);
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void mangleNameWithAbiTags(const NamedDecl *ND,
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const AbiTagList *AdditionalAbiTags);
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void mangleTemplateName(const TemplateDecl *TD,
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const TemplateArgument *TemplateArgs,
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unsigned NumTemplateArgs);
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void mangleUnqualifiedName(const NamedDecl *ND,
|
|
const AbiTagList *AdditionalAbiTags) {
|
|
mangleUnqualifiedName(ND, ND->getDeclName(), UnknownArity,
|
|
AdditionalAbiTags);
|
|
}
|
|
void mangleUnqualifiedName(const NamedDecl *ND, DeclarationName Name,
|
|
unsigned KnownArity,
|
|
const AbiTagList *AdditionalAbiTags);
|
|
void mangleUnscopedName(const NamedDecl *ND,
|
|
const AbiTagList *AdditionalAbiTags);
|
|
void mangleUnscopedTemplateName(const TemplateDecl *ND,
|
|
const AbiTagList *AdditionalAbiTags);
|
|
void mangleUnscopedTemplateName(TemplateName,
|
|
const AbiTagList *AdditionalAbiTags);
|
|
void mangleSourceName(const IdentifierInfo *II);
|
|
void mangleSourceNameWithAbiTags(
|
|
const NamedDecl *ND, const AbiTagList *AdditionalAbiTags = nullptr);
|
|
void mangleLocalName(const Decl *D,
|
|
const AbiTagList *AdditionalAbiTags);
|
|
void mangleBlockForPrefix(const BlockDecl *Block);
|
|
void mangleUnqualifiedBlock(const BlockDecl *Block);
|
|
void mangleLambda(const CXXRecordDecl *Lambda);
|
|
void mangleNestedName(const NamedDecl *ND, const DeclContext *DC,
|
|
const AbiTagList *AdditionalAbiTags,
|
|
bool NoFunction=false);
|
|
void mangleNestedName(const TemplateDecl *TD,
|
|
const TemplateArgument *TemplateArgs,
|
|
unsigned NumTemplateArgs);
|
|
void manglePrefix(NestedNameSpecifier *qualifier);
|
|
void manglePrefix(const DeclContext *DC, bool NoFunction=false);
|
|
void manglePrefix(QualType type);
|
|
void mangleTemplatePrefix(const TemplateDecl *ND, bool NoFunction=false);
|
|
void mangleTemplatePrefix(TemplateName Template);
|
|
bool mangleUnresolvedTypeOrSimpleId(QualType DestroyedType,
|
|
StringRef Prefix = "");
|
|
void mangleOperatorName(DeclarationName Name, unsigned Arity);
|
|
void mangleOperatorName(OverloadedOperatorKind OO, unsigned Arity);
|
|
void mangleVendorQualifier(StringRef qualifier);
|
|
void mangleQualifiers(Qualifiers Quals);
|
|
void mangleRefQualifier(RefQualifierKind RefQualifier);
|
|
|
|
void mangleObjCMethodName(const ObjCMethodDecl *MD);
|
|
|
|
// Declare manglers for every type class.
|
|
#define ABSTRACT_TYPE(CLASS, PARENT)
|
|
#define NON_CANONICAL_TYPE(CLASS, PARENT)
|
|
#define TYPE(CLASS, PARENT) void mangleType(const CLASS##Type *T);
|
|
#include "clang/AST/TypeNodes.def"
|
|
|
|
void mangleType(const TagType*);
|
|
void mangleType(TemplateName);
|
|
static StringRef getCallingConvQualifierName(CallingConv CC);
|
|
void mangleExtParameterInfo(FunctionProtoType::ExtParameterInfo info);
|
|
void mangleExtFunctionInfo(const FunctionType *T);
|
|
void mangleBareFunctionType(const FunctionProtoType *T, bool MangleReturnType,
|
|
const FunctionDecl *FD = nullptr);
|
|
void mangleNeonVectorType(const VectorType *T);
|
|
void mangleAArch64NeonVectorType(const VectorType *T);
|
|
|
|
void mangleIntegerLiteral(QualType T, const llvm::APSInt &Value);
|
|
void mangleMemberExprBase(const Expr *base, bool isArrow);
|
|
void mangleMemberExpr(const Expr *base, bool isArrow,
|
|
NestedNameSpecifier *qualifier,
|
|
NamedDecl *firstQualifierLookup,
|
|
DeclarationName name,
|
|
unsigned knownArity);
|
|
void mangleCastExpression(const Expr *E, StringRef CastEncoding);
|
|
void mangleInitListElements(const InitListExpr *InitList);
|
|
void mangleExpression(const Expr *E, unsigned Arity = UnknownArity);
|
|
void mangleCXXCtorType(CXXCtorType T, const CXXRecordDecl *InheritedFrom);
|
|
void mangleCXXDtorType(CXXDtorType T);
|
|
|
|
void mangleTemplateArgs(const TemplateArgumentLoc *TemplateArgs,
|
|
unsigned NumTemplateArgs);
|
|
void mangleTemplateArgs(const TemplateArgument *TemplateArgs,
|
|
unsigned NumTemplateArgs);
|
|
void mangleTemplateArgs(const TemplateArgumentList &AL);
|
|
void mangleTemplateArg(TemplateArgument A);
|
|
|
|
void mangleTemplateParameter(unsigned Index);
|
|
|
|
void mangleFunctionParam(const ParmVarDecl *parm);
|
|
|
|
void writeAbiTags(const NamedDecl *ND,
|
|
const AbiTagList *AdditionalAbiTags);
|
|
|
|
// Returns sorted unique list of ABI tags.
|
|
AbiTagList makeFunctionReturnTypeTags(const FunctionDecl *FD);
|
|
// Returns sorted unique list of ABI tags.
|
|
AbiTagList makeVariableTypeTags(const VarDecl *VD);
|
|
};
|
|
|
|
}
|
|
|
|
bool ItaniumMangleContextImpl::shouldMangleCXXName(const NamedDecl *D) {
|
|
const FunctionDecl *FD = dyn_cast<FunctionDecl>(D);
|
|
if (FD) {
|
|
LanguageLinkage L = FD->getLanguageLinkage();
|
|
// Overloadable functions need mangling.
|
|
if (FD->hasAttr<OverloadableAttr>())
|
|
return true;
|
|
|
|
// "main" is not mangled.
|
|
if (FD->isMain())
|
|
return false;
|
|
|
|
// C++ functions and those whose names are not a simple identifier need
|
|
// mangling.
|
|
if (!FD->getDeclName().isIdentifier() || L == CXXLanguageLinkage)
|
|
return true;
|
|
|
|
// C functions are not mangled.
|
|
if (L == CLanguageLinkage)
|
|
return false;
|
|
}
|
|
|
|
// Otherwise, no mangling is done outside C++ mode.
|
|
if (!getASTContext().getLangOpts().CPlusPlus)
|
|
return false;
|
|
|
|
const VarDecl *VD = dyn_cast<VarDecl>(D);
|
|
if (VD && !isa<DecompositionDecl>(D)) {
|
|
// C variables are not mangled.
|
|
if (VD->isExternC())
|
|
return false;
|
|
|
|
// Variables at global scope with non-internal linkage are not mangled
|
|
const DeclContext *DC = getEffectiveDeclContext(D);
|
|
// Check for extern variable declared locally.
|
|
if (DC->isFunctionOrMethod() && D->hasLinkage())
|
|
while (!DC->isNamespace() && !DC->isTranslationUnit())
|
|
DC = getEffectiveParentContext(DC);
|
|
if (DC->isTranslationUnit() && D->getFormalLinkage() != InternalLinkage &&
|
|
!CXXNameMangler::shouldHaveAbiTags(*this, VD) &&
|
|
!isa<VarTemplateSpecializationDecl>(D))
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
void CXXNameMangler::writeAbiTags(const NamedDecl *ND,
|
|
const AbiTagList *AdditionalAbiTags) {
|
|
assert(AbiTags && "require AbiTagState");
|
|
AbiTags->write(Out, ND, DisableDerivedAbiTags ? nullptr : AdditionalAbiTags);
|
|
}
|
|
|
|
void CXXNameMangler::mangleSourceNameWithAbiTags(
|
|
const NamedDecl *ND, const AbiTagList *AdditionalAbiTags) {
|
|
mangleSourceName(ND->getIdentifier());
|
|
writeAbiTags(ND, AdditionalAbiTags);
|
|
}
|
|
|
|
void CXXNameMangler::mangle(const NamedDecl *D) {
|
|
// <mangled-name> ::= _Z <encoding>
|
|
// ::= <data name>
|
|
// ::= <special-name>
|
|
Out << "_Z";
|
|
if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(D))
|
|
mangleFunctionEncoding(FD);
|
|
else if (const VarDecl *VD = dyn_cast<VarDecl>(D))
|
|
mangleName(VD);
|
|
else if (const IndirectFieldDecl *IFD = dyn_cast<IndirectFieldDecl>(D))
|
|
mangleName(IFD->getAnonField());
|
|
else
|
|
mangleName(cast<FieldDecl>(D));
|
|
}
|
|
|
|
void CXXNameMangler::mangleFunctionEncoding(const FunctionDecl *FD) {
|
|
// <encoding> ::= <function name> <bare-function-type>
|
|
|
|
// Don't mangle in the type if this isn't a decl we should typically mangle.
|
|
if (!Context.shouldMangleDeclName(FD)) {
|
|
mangleName(FD);
|
|
return;
|
|
}
|
|
|
|
AbiTagList ReturnTypeAbiTags = makeFunctionReturnTypeTags(FD);
|
|
if (ReturnTypeAbiTags.empty()) {
|
|
// There are no tags for return type, the simplest case.
|
|
mangleName(FD);
|
|
mangleFunctionEncodingBareType(FD);
|
|
return;
|
|
}
|
|
|
|
// Mangle function name and encoding to temporary buffer.
|
|
// We have to output name and encoding to the same mangler to get the same
|
|
// substitution as it will be in final mangling.
|
|
SmallString<256> FunctionEncodingBuf;
|
|
llvm::raw_svector_ostream FunctionEncodingStream(FunctionEncodingBuf);
|
|
CXXNameMangler FunctionEncodingMangler(*this, FunctionEncodingStream);
|
|
// Output name of the function.
|
|
FunctionEncodingMangler.disableDerivedAbiTags();
|
|
FunctionEncodingMangler.mangleNameWithAbiTags(FD, nullptr);
|
|
|
|
// Remember length of the function name in the buffer.
|
|
size_t EncodingPositionStart = FunctionEncodingStream.str().size();
|
|
FunctionEncodingMangler.mangleFunctionEncodingBareType(FD);
|
|
|
|
// Get tags from return type that are not present in function name or
|
|
// encoding.
|
|
const AbiTagList &UsedAbiTags =
|
|
FunctionEncodingMangler.AbiTagsRoot.getSortedUniqueUsedAbiTags();
|
|
AbiTagList AdditionalAbiTags(ReturnTypeAbiTags.size());
|
|
AdditionalAbiTags.erase(
|
|
std::set_difference(ReturnTypeAbiTags.begin(), ReturnTypeAbiTags.end(),
|
|
UsedAbiTags.begin(), UsedAbiTags.end(),
|
|
AdditionalAbiTags.begin()),
|
|
AdditionalAbiTags.end());
|
|
|
|
// Output name with implicit tags and function encoding from temporary buffer.
|
|
mangleNameWithAbiTags(FD, &AdditionalAbiTags);
|
|
Out << FunctionEncodingStream.str().substr(EncodingPositionStart);
|
|
|
|
// Function encoding could create new substitutions so we have to add
|
|
// temp mangled substitutions to main mangler.
|
|
extendSubstitutions(&FunctionEncodingMangler);
|
|
}
|
|
|
|
void CXXNameMangler::mangleFunctionEncodingBareType(const FunctionDecl *FD) {
|
|
if (FD->hasAttr<EnableIfAttr>()) {
|
|
FunctionTypeDepthState Saved = FunctionTypeDepth.push();
|
|
Out << "Ua9enable_ifI";
|
|
// FIXME: specific_attr_iterator iterates in reverse order. Fix that and use
|
|
// it here.
|
|
for (AttrVec::const_reverse_iterator I = FD->getAttrs().rbegin(),
|
|
E = FD->getAttrs().rend();
|
|
I != E; ++I) {
|
|
EnableIfAttr *EIA = dyn_cast<EnableIfAttr>(*I);
|
|
if (!EIA)
|
|
continue;
|
|
Out << 'X';
|
|
mangleExpression(EIA->getCond());
|
|
Out << 'E';
|
|
}
|
|
Out << 'E';
|
|
FunctionTypeDepth.pop(Saved);
|
|
}
|
|
|
|
// When mangling an inheriting constructor, the bare function type used is
|
|
// that of the inherited constructor.
|
|
if (auto *CD = dyn_cast<CXXConstructorDecl>(FD))
|
|
if (auto Inherited = CD->getInheritedConstructor())
|
|
FD = Inherited.getConstructor();
|
|
|
|
// Whether the mangling of a function type includes the return type depends on
|
|
// the context and the nature of the function. The rules for deciding whether
|
|
// the return type is included are:
|
|
//
|
|
// 1. Template functions (names or types) have return types encoded, with
|
|
// the exceptions listed below.
|
|
// 2. Function types not appearing as part of a function name mangling,
|
|
// e.g. parameters, pointer types, etc., have return type encoded, with the
|
|
// exceptions listed below.
|
|
// 3. Non-template function names do not have return types encoded.
|
|
//
|
|
// The exceptions mentioned in (1) and (2) above, for which the return type is
|
|
// never included, are
|
|
// 1. Constructors.
|
|
// 2. Destructors.
|
|
// 3. Conversion operator functions, e.g. operator int.
|
|
bool MangleReturnType = false;
|
|
if (FunctionTemplateDecl *PrimaryTemplate = FD->getPrimaryTemplate()) {
|
|
if (!(isa<CXXConstructorDecl>(FD) || isa<CXXDestructorDecl>(FD) ||
|
|
isa<CXXConversionDecl>(FD)))
|
|
MangleReturnType = true;
|
|
|
|
// Mangle the type of the primary template.
|
|
FD = PrimaryTemplate->getTemplatedDecl();
|
|
}
|
|
|
|
mangleBareFunctionType(FD->getType()->castAs<FunctionProtoType>(),
|
|
MangleReturnType, FD);
|
|
}
|
|
|
|
static const DeclContext *IgnoreLinkageSpecDecls(const DeclContext *DC) {
|
|
while (isa<LinkageSpecDecl>(DC)) {
|
|
DC = getEffectiveParentContext(DC);
|
|
}
|
|
|
|
return DC;
|
|
}
|
|
|
|
/// Return whether a given namespace is the 'std' namespace.
|
|
static bool isStd(const NamespaceDecl *NS) {
|
|
if (!IgnoreLinkageSpecDecls(getEffectiveParentContext(NS))
|
|
->isTranslationUnit())
|
|
return false;
|
|
|
|
const IdentifierInfo *II = NS->getOriginalNamespace()->getIdentifier();
|
|
return II && II->isStr("std");
|
|
}
|
|
|
|
// isStdNamespace - Return whether a given decl context is a toplevel 'std'
|
|
// namespace.
|
|
static bool isStdNamespace(const DeclContext *DC) {
|
|
if (!DC->isNamespace())
|
|
return false;
|
|
|
|
return isStd(cast<NamespaceDecl>(DC));
|
|
}
|
|
|
|
static const TemplateDecl *
|
|
isTemplate(const NamedDecl *ND, const TemplateArgumentList *&TemplateArgs) {
|
|
// Check if we have a function template.
|
|
if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(ND)) {
|
|
if (const TemplateDecl *TD = FD->getPrimaryTemplate()) {
|
|
TemplateArgs = FD->getTemplateSpecializationArgs();
|
|
return TD;
|
|
}
|
|
}
|
|
|
|
// Check if we have a class template.
|
|
if (const ClassTemplateSpecializationDecl *Spec =
|
|
dyn_cast<ClassTemplateSpecializationDecl>(ND)) {
|
|
TemplateArgs = &Spec->getTemplateArgs();
|
|
return Spec->getSpecializedTemplate();
|
|
}
|
|
|
|
// Check if we have a variable template.
|
|
if (const VarTemplateSpecializationDecl *Spec =
|
|
dyn_cast<VarTemplateSpecializationDecl>(ND)) {
|
|
TemplateArgs = &Spec->getTemplateArgs();
|
|
return Spec->getSpecializedTemplate();
|
|
}
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
void CXXNameMangler::mangleName(const NamedDecl *ND) {
|
|
if (const VarDecl *VD = dyn_cast<VarDecl>(ND)) {
|
|
// Variables should have implicit tags from its type.
|
|
AbiTagList VariableTypeAbiTags = makeVariableTypeTags(VD);
|
|
if (VariableTypeAbiTags.empty()) {
|
|
// Simple case no variable type tags.
|
|
mangleNameWithAbiTags(VD, nullptr);
|
|
return;
|
|
}
|
|
|
|
// Mangle variable name to null stream to collect tags.
|
|
llvm::raw_null_ostream NullOutStream;
|
|
CXXNameMangler VariableNameMangler(*this, NullOutStream);
|
|
VariableNameMangler.disableDerivedAbiTags();
|
|
VariableNameMangler.mangleNameWithAbiTags(VD, nullptr);
|
|
|
|
// Get tags from variable type that are not present in its name.
|
|
const AbiTagList &UsedAbiTags =
|
|
VariableNameMangler.AbiTagsRoot.getSortedUniqueUsedAbiTags();
|
|
AbiTagList AdditionalAbiTags(VariableTypeAbiTags.size());
|
|
AdditionalAbiTags.erase(
|
|
std::set_difference(VariableTypeAbiTags.begin(),
|
|
VariableTypeAbiTags.end(), UsedAbiTags.begin(),
|
|
UsedAbiTags.end(), AdditionalAbiTags.begin()),
|
|
AdditionalAbiTags.end());
|
|
|
|
// Output name with implicit tags.
|
|
mangleNameWithAbiTags(VD, &AdditionalAbiTags);
|
|
} else {
|
|
mangleNameWithAbiTags(ND, nullptr);
|
|
}
|
|
}
|
|
|
|
void CXXNameMangler::mangleNameWithAbiTags(const NamedDecl *ND,
|
|
const AbiTagList *AdditionalAbiTags) {
|
|
// <name> ::= <nested-name>
|
|
// ::= <unscoped-name>
|
|
// ::= <unscoped-template-name> <template-args>
|
|
// ::= <local-name>
|
|
//
|
|
const DeclContext *DC = getEffectiveDeclContext(ND);
|
|
|
|
// If this is an extern variable declared locally, the relevant DeclContext
|
|
// is that of the containing namespace, or the translation unit.
|
|
// FIXME: This is a hack; extern variables declared locally should have
|
|
// a proper semantic declaration context!
|
|
if (isLocalContainerContext(DC) && ND->hasLinkage() && !isLambda(ND))
|
|
while (!DC->isNamespace() && !DC->isTranslationUnit())
|
|
DC = getEffectiveParentContext(DC);
|
|
else if (GetLocalClassDecl(ND)) {
|
|
mangleLocalName(ND, AdditionalAbiTags);
|
|
return;
|
|
}
|
|
|
|
DC = IgnoreLinkageSpecDecls(DC);
|
|
|
|
if (DC->isTranslationUnit() || isStdNamespace(DC)) {
|
|
// Check if we have a template.
|
|
const TemplateArgumentList *TemplateArgs = nullptr;
|
|
if (const TemplateDecl *TD = isTemplate(ND, TemplateArgs)) {
|
|
mangleUnscopedTemplateName(TD, AdditionalAbiTags);
|
|
mangleTemplateArgs(*TemplateArgs);
|
|
return;
|
|
}
|
|
|
|
mangleUnscopedName(ND, AdditionalAbiTags);
|
|
return;
|
|
}
|
|
|
|
if (isLocalContainerContext(DC)) {
|
|
mangleLocalName(ND, AdditionalAbiTags);
|
|
return;
|
|
}
|
|
|
|
mangleNestedName(ND, DC, AdditionalAbiTags);
|
|
}
|
|
|
|
void CXXNameMangler::mangleTemplateName(const TemplateDecl *TD,
|
|
const TemplateArgument *TemplateArgs,
|
|
unsigned NumTemplateArgs) {
|
|
const DeclContext *DC = IgnoreLinkageSpecDecls(getEffectiveDeclContext(TD));
|
|
|
|
if (DC->isTranslationUnit() || isStdNamespace(DC)) {
|
|
mangleUnscopedTemplateName(TD, nullptr);
|
|
mangleTemplateArgs(TemplateArgs, NumTemplateArgs);
|
|
} else {
|
|
mangleNestedName(TD, TemplateArgs, NumTemplateArgs);
|
|
}
|
|
}
|
|
|
|
void CXXNameMangler::mangleUnscopedName(const NamedDecl *ND,
|
|
const AbiTagList *AdditionalAbiTags) {
|
|
// <unscoped-name> ::= <unqualified-name>
|
|
// ::= St <unqualified-name> # ::std::
|
|
|
|
if (isStdNamespace(IgnoreLinkageSpecDecls(getEffectiveDeclContext(ND))))
|
|
Out << "St";
|
|
|
|
mangleUnqualifiedName(ND, AdditionalAbiTags);
|
|
}
|
|
|
|
void CXXNameMangler::mangleUnscopedTemplateName(
|
|
const TemplateDecl *ND, const AbiTagList *AdditionalAbiTags) {
|
|
// <unscoped-template-name> ::= <unscoped-name>
|
|
// ::= <substitution>
|
|
if (mangleSubstitution(ND))
|
|
return;
|
|
|
|
// <template-template-param> ::= <template-param>
|
|
if (const auto *TTP = dyn_cast<TemplateTemplateParmDecl>(ND)) {
|
|
assert(!AdditionalAbiTags &&
|
|
"template template param cannot have abi tags");
|
|
mangleTemplateParameter(TTP->getIndex());
|
|
} else if (isa<BuiltinTemplateDecl>(ND)) {
|
|
mangleUnscopedName(ND, AdditionalAbiTags);
|
|
} else {
|
|
mangleUnscopedName(ND->getTemplatedDecl(), AdditionalAbiTags);
|
|
}
|
|
|
|
addSubstitution(ND);
|
|
}
|
|
|
|
void CXXNameMangler::mangleUnscopedTemplateName(
|
|
TemplateName Template, const AbiTagList *AdditionalAbiTags) {
|
|
// <unscoped-template-name> ::= <unscoped-name>
|
|
// ::= <substitution>
|
|
if (TemplateDecl *TD = Template.getAsTemplateDecl())
|
|
return mangleUnscopedTemplateName(TD, AdditionalAbiTags);
|
|
|
|
if (mangleSubstitution(Template))
|
|
return;
|
|
|
|
assert(!AdditionalAbiTags &&
|
|
"dependent template name cannot have abi tags");
|
|
|
|
DependentTemplateName *Dependent = Template.getAsDependentTemplateName();
|
|
assert(Dependent && "Not a dependent template name?");
|
|
if (const IdentifierInfo *Id = Dependent->getIdentifier())
|
|
mangleSourceName(Id);
|
|
else
|
|
mangleOperatorName(Dependent->getOperator(), UnknownArity);
|
|
|
|
addSubstitution(Template);
|
|
}
|
|
|
|
void CXXNameMangler::mangleFloat(const llvm::APFloat &f) {
|
|
// ABI:
|
|
// Floating-point literals are encoded using a fixed-length
|
|
// lowercase hexadecimal string corresponding to the internal
|
|
// representation (IEEE on Itanium), high-order bytes first,
|
|
// without leading zeroes. For example: "Lf bf800000 E" is -1.0f
|
|
// on Itanium.
|
|
// The 'without leading zeroes' thing seems to be an editorial
|
|
// mistake; see the discussion on cxx-abi-dev beginning on
|
|
// 2012-01-16.
|
|
|
|
// Our requirements here are just barely weird enough to justify
|
|
// using a custom algorithm instead of post-processing APInt::toString().
|
|
|
|
llvm::APInt valueBits = f.bitcastToAPInt();
|
|
unsigned numCharacters = (valueBits.getBitWidth() + 3) / 4;
|
|
assert(numCharacters != 0);
|
|
|
|
// Allocate a buffer of the right number of characters.
|
|
SmallVector<char, 20> buffer(numCharacters);
|
|
|
|
// Fill the buffer left-to-right.
|
|
for (unsigned stringIndex = 0; stringIndex != numCharacters; ++stringIndex) {
|
|
// The bit-index of the next hex digit.
|
|
unsigned digitBitIndex = 4 * (numCharacters - stringIndex - 1);
|
|
|
|
// Project out 4 bits starting at 'digitIndex'.
|
|
llvm::integerPart hexDigit
|
|
= valueBits.getRawData()[digitBitIndex / llvm::integerPartWidth];
|
|
hexDigit >>= (digitBitIndex % llvm::integerPartWidth);
|
|
hexDigit &= 0xF;
|
|
|
|
// Map that over to a lowercase hex digit.
|
|
static const char charForHex[16] = {
|
|
'0', '1', '2', '3', '4', '5', '6', '7',
|
|
'8', '9', 'a', 'b', 'c', 'd', 'e', 'f'
|
|
};
|
|
buffer[stringIndex] = charForHex[hexDigit];
|
|
}
|
|
|
|
Out.write(buffer.data(), numCharacters);
|
|
}
|
|
|
|
void CXXNameMangler::mangleNumber(const llvm::APSInt &Value) {
|
|
if (Value.isSigned() && Value.isNegative()) {
|
|
Out << 'n';
|
|
Value.abs().print(Out, /*signed*/ false);
|
|
} else {
|
|
Value.print(Out, /*signed*/ false);
|
|
}
|
|
}
|
|
|
|
void CXXNameMangler::mangleNumber(int64_t Number) {
|
|
// <number> ::= [n] <non-negative decimal integer>
|
|
if (Number < 0) {
|
|
Out << 'n';
|
|
Number = -Number;
|
|
}
|
|
|
|
Out << Number;
|
|
}
|
|
|
|
void CXXNameMangler::mangleCallOffset(int64_t NonVirtual, int64_t Virtual) {
|
|
// <call-offset> ::= h <nv-offset> _
|
|
// ::= v <v-offset> _
|
|
// <nv-offset> ::= <offset number> # non-virtual base override
|
|
// <v-offset> ::= <offset number> _ <virtual offset number>
|
|
// # virtual base override, with vcall offset
|
|
if (!Virtual) {
|
|
Out << 'h';
|
|
mangleNumber(NonVirtual);
|
|
Out << '_';
|
|
return;
|
|
}
|
|
|
|
Out << 'v';
|
|
mangleNumber(NonVirtual);
|
|
Out << '_';
|
|
mangleNumber(Virtual);
|
|
Out << '_';
|
|
}
|
|
|
|
void CXXNameMangler::manglePrefix(QualType type) {
|
|
if (const auto *TST = type->getAs<TemplateSpecializationType>()) {
|
|
if (!mangleSubstitution(QualType(TST, 0))) {
|
|
mangleTemplatePrefix(TST->getTemplateName());
|
|
|
|
// FIXME: GCC does not appear to mangle the template arguments when
|
|
// the template in question is a dependent template name. Should we
|
|
// emulate that badness?
|
|
mangleTemplateArgs(TST->getArgs(), TST->getNumArgs());
|
|
addSubstitution(QualType(TST, 0));
|
|
}
|
|
} else if (const auto *DTST =
|
|
type->getAs<DependentTemplateSpecializationType>()) {
|
|
if (!mangleSubstitution(QualType(DTST, 0))) {
|
|
TemplateName Template = getASTContext().getDependentTemplateName(
|
|
DTST->getQualifier(), DTST->getIdentifier());
|
|
mangleTemplatePrefix(Template);
|
|
|
|
// FIXME: GCC does not appear to mangle the template arguments when
|
|
// the template in question is a dependent template name. Should we
|
|
// emulate that badness?
|
|
mangleTemplateArgs(DTST->getArgs(), DTST->getNumArgs());
|
|
addSubstitution(QualType(DTST, 0));
|
|
}
|
|
} else {
|
|
// We use the QualType mangle type variant here because it handles
|
|
// substitutions.
|
|
mangleType(type);
|
|
}
|
|
}
|
|
|
|
/// Mangle everything prior to the base-unresolved-name in an unresolved-name.
|
|
///
|
|
/// \param recursive - true if this is being called recursively,
|
|
/// i.e. if there is more prefix "to the right".
|
|
void CXXNameMangler::mangleUnresolvedPrefix(NestedNameSpecifier *qualifier,
|
|
bool recursive) {
|
|
|
|
// x, ::x
|
|
// <unresolved-name> ::= [gs] <base-unresolved-name>
|
|
|
|
// T::x / decltype(p)::x
|
|
// <unresolved-name> ::= sr <unresolved-type> <base-unresolved-name>
|
|
|
|
// T::N::x /decltype(p)::N::x
|
|
// <unresolved-name> ::= srN <unresolved-type> <unresolved-qualifier-level>+ E
|
|
// <base-unresolved-name>
|
|
|
|
// A::x, N::y, A<T>::z; "gs" means leading "::"
|
|
// <unresolved-name> ::= [gs] sr <unresolved-qualifier-level>+ E
|
|
// <base-unresolved-name>
|
|
|
|
switch (qualifier->getKind()) {
|
|
case NestedNameSpecifier::Global:
|
|
Out << "gs";
|
|
|
|
// We want an 'sr' unless this is the entire NNS.
|
|
if (recursive)
|
|
Out << "sr";
|
|
|
|
// We never want an 'E' here.
|
|
return;
|
|
|
|
case NestedNameSpecifier::Super:
|
|
llvm_unreachable("Can't mangle __super specifier");
|
|
|
|
case NestedNameSpecifier::Namespace:
|
|
if (qualifier->getPrefix())
|
|
mangleUnresolvedPrefix(qualifier->getPrefix(),
|
|
/*recursive*/ true);
|
|
else
|
|
Out << "sr";
|
|
mangleSourceNameWithAbiTags(qualifier->getAsNamespace());
|
|
break;
|
|
case NestedNameSpecifier::NamespaceAlias:
|
|
if (qualifier->getPrefix())
|
|
mangleUnresolvedPrefix(qualifier->getPrefix(),
|
|
/*recursive*/ true);
|
|
else
|
|
Out << "sr";
|
|
mangleSourceNameWithAbiTags(qualifier->getAsNamespaceAlias());
|
|
break;
|
|
|
|
case NestedNameSpecifier::TypeSpec:
|
|
case NestedNameSpecifier::TypeSpecWithTemplate: {
|
|
const Type *type = qualifier->getAsType();
|
|
|
|
// We only want to use an unresolved-type encoding if this is one of:
|
|
// - a decltype
|
|
// - a template type parameter
|
|
// - a template template parameter with arguments
|
|
// In all of these cases, we should have no prefix.
|
|
if (qualifier->getPrefix()) {
|
|
mangleUnresolvedPrefix(qualifier->getPrefix(),
|
|
/*recursive*/ true);
|
|
} else {
|
|
// Otherwise, all the cases want this.
|
|
Out << "sr";
|
|
}
|
|
|
|
if (mangleUnresolvedTypeOrSimpleId(QualType(type, 0), recursive ? "N" : ""))
|
|
return;
|
|
|
|
break;
|
|
}
|
|
|
|
case NestedNameSpecifier::Identifier:
|
|
// Member expressions can have these without prefixes.
|
|
if (qualifier->getPrefix())
|
|
mangleUnresolvedPrefix(qualifier->getPrefix(),
|
|
/*recursive*/ true);
|
|
else
|
|
Out << "sr";
|
|
|
|
mangleSourceName(qualifier->getAsIdentifier());
|
|
// An Identifier has no type information, so we can't emit abi tags for it.
|
|
break;
|
|
}
|
|
|
|
// If this was the innermost part of the NNS, and we fell out to
|
|
// here, append an 'E'.
|
|
if (!recursive)
|
|
Out << 'E';
|
|
}
|
|
|
|
/// Mangle an unresolved-name, which is generally used for names which
|
|
/// weren't resolved to specific entities.
|
|
void CXXNameMangler::mangleUnresolvedName(NestedNameSpecifier *qualifier,
|
|
DeclarationName name,
|
|
unsigned knownArity) {
|
|
if (qualifier) mangleUnresolvedPrefix(qualifier);
|
|
switch (name.getNameKind()) {
|
|
// <base-unresolved-name> ::= <simple-id>
|
|
case DeclarationName::Identifier:
|
|
mangleSourceName(name.getAsIdentifierInfo());
|
|
break;
|
|
// <base-unresolved-name> ::= dn <destructor-name>
|
|
case DeclarationName::CXXDestructorName:
|
|
Out << "dn";
|
|
mangleUnresolvedTypeOrSimpleId(name.getCXXNameType());
|
|
break;
|
|
// <base-unresolved-name> ::= on <operator-name>
|
|
case DeclarationName::CXXConversionFunctionName:
|
|
case DeclarationName::CXXLiteralOperatorName:
|
|
case DeclarationName::CXXOperatorName:
|
|
Out << "on";
|
|
mangleOperatorName(name, knownArity);
|
|
break;
|
|
case DeclarationName::CXXConstructorName:
|
|
llvm_unreachable("Can't mangle a constructor name!");
|
|
case DeclarationName::CXXUsingDirective:
|
|
llvm_unreachable("Can't mangle a using directive name!");
|
|
case DeclarationName::ObjCMultiArgSelector:
|
|
case DeclarationName::ObjCOneArgSelector:
|
|
case DeclarationName::ObjCZeroArgSelector:
|
|
llvm_unreachable("Can't mangle Objective-C selector names here!");
|
|
}
|
|
}
|
|
|
|
void CXXNameMangler::mangleUnqualifiedName(const NamedDecl *ND,
|
|
DeclarationName Name,
|
|
unsigned KnownArity,
|
|
const AbiTagList *AdditionalAbiTags) {
|
|
unsigned Arity = KnownArity;
|
|
// <unqualified-name> ::= <operator-name>
|
|
// ::= <ctor-dtor-name>
|
|
// ::= <source-name>
|
|
switch (Name.getNameKind()) {
|
|
case DeclarationName::Identifier: {
|
|
const IdentifierInfo *II = Name.getAsIdentifierInfo();
|
|
|
|
// We mangle decomposition declarations as the names of their bindings.
|
|
if (auto *DD = dyn_cast<DecompositionDecl>(ND)) {
|
|
// FIXME: Non-standard mangling for decomposition declarations:
|
|
//
|
|
// <unqualified-name> ::= DC <source-name>* E
|
|
//
|
|
// These can never be referenced across translation units, so we do
|
|
// not need a cross-vendor mangling for anything other than demanglers.
|
|
// Proposed on cxx-abi-dev on 2016-08-12
|
|
Out << "DC";
|
|
for (auto *BD : DD->bindings())
|
|
mangleSourceName(BD->getDeclName().getAsIdentifierInfo());
|
|
Out << 'E';
|
|
writeAbiTags(ND, AdditionalAbiTags);
|
|
break;
|
|
}
|
|
|
|
if (II) {
|
|
// We must avoid conflicts between internally- and externally-
|
|
// linked variable and function declaration names in the same TU:
|
|
// void test() { extern void foo(); }
|
|
// static void foo();
|
|
// This naming convention is the same as that followed by GCC,
|
|
// though it shouldn't actually matter.
|
|
if (ND && ND->getFormalLinkage() == InternalLinkage &&
|
|
getEffectiveDeclContext(ND)->isFileContext())
|
|
Out << 'L';
|
|
|
|
mangleSourceName(II);
|
|
writeAbiTags(ND, AdditionalAbiTags);
|
|
break;
|
|
}
|
|
|
|
// Otherwise, an anonymous entity. We must have a declaration.
|
|
assert(ND && "mangling empty name without declaration");
|
|
|
|
if (const NamespaceDecl *NS = dyn_cast<NamespaceDecl>(ND)) {
|
|
if (NS->isAnonymousNamespace()) {
|
|
// This is how gcc mangles these names.
|
|
Out << "12_GLOBAL__N_1";
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (const VarDecl *VD = dyn_cast<VarDecl>(ND)) {
|
|
// We must have an anonymous union or struct declaration.
|
|
const RecordDecl *RD =
|
|
cast<RecordDecl>(VD->getType()->getAs<RecordType>()->getDecl());
|
|
|
|
// Itanium C++ ABI 5.1.2:
|
|
//
|
|
// For the purposes of mangling, the name of an anonymous union is
|
|
// considered to be the name of the first named data member found by a
|
|
// pre-order, depth-first, declaration-order walk of the data members of
|
|
// the anonymous union. If there is no such data member (i.e., if all of
|
|
// the data members in the union are unnamed), then there is no way for
|
|
// a program to refer to the anonymous union, and there is therefore no
|
|
// need to mangle its name.
|
|
assert(RD->isAnonymousStructOrUnion()
|
|
&& "Expected anonymous struct or union!");
|
|
const FieldDecl *FD = RD->findFirstNamedDataMember();
|
|
|
|
// It's actually possible for various reasons for us to get here
|
|
// with an empty anonymous struct / union. Fortunately, it
|
|
// doesn't really matter what name we generate.
|
|
if (!FD) break;
|
|
assert(FD->getIdentifier() && "Data member name isn't an identifier!");
|
|
|
|
mangleSourceName(FD->getIdentifier());
|
|
// Not emitting abi tags: internal name anyway.
|
|
break;
|
|
}
|
|
|
|
// Class extensions have no name as a category, and it's possible
|
|
// for them to be the semantic parent of certain declarations
|
|
// (primarily, tag decls defined within declarations). Such
|
|
// declarations will always have internal linkage, so the name
|
|
// doesn't really matter, but we shouldn't crash on them. For
|
|
// safety, just handle all ObjC containers here.
|
|
if (isa<ObjCContainerDecl>(ND))
|
|
break;
|
|
|
|
// We must have an anonymous struct.
|
|
const TagDecl *TD = cast<TagDecl>(ND);
|
|
if (const TypedefNameDecl *D = TD->getTypedefNameForAnonDecl()) {
|
|
assert(TD->getDeclContext() == D->getDeclContext() &&
|
|
"Typedef should not be in another decl context!");
|
|
assert(D->getDeclName().getAsIdentifierInfo() &&
|
|
"Typedef was not named!");
|
|
mangleSourceName(D->getDeclName().getAsIdentifierInfo());
|
|
assert(!AdditionalAbiTags && "Type cannot have additional abi tags");
|
|
// Explicit abi tags are still possible; take from underlying type, not
|
|
// from typedef.
|
|
writeAbiTags(TD, nullptr);
|
|
break;
|
|
}
|
|
|
|
// <unnamed-type-name> ::= <closure-type-name>
|
|
//
|
|
// <closure-type-name> ::= Ul <lambda-sig> E [ <nonnegative number> ] _
|
|
// <lambda-sig> ::= <parameter-type>+ # Parameter types or 'v' for 'void'.
|
|
if (const CXXRecordDecl *Record = dyn_cast<CXXRecordDecl>(TD)) {
|
|
if (Record->isLambda() && Record->getLambdaManglingNumber()) {
|
|
assert(!AdditionalAbiTags &&
|
|
"Lambda type cannot have additional abi tags");
|
|
mangleLambda(Record);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (TD->isExternallyVisible()) {
|
|
unsigned UnnamedMangle = getASTContext().getManglingNumber(TD);
|
|
Out << "Ut";
|
|
if (UnnamedMangle > 1)
|
|
Out << UnnamedMangle - 2;
|
|
Out << '_';
|
|
writeAbiTags(TD, AdditionalAbiTags);
|
|
break;
|
|
}
|
|
|
|
// Get a unique id for the anonymous struct. If it is not a real output
|
|
// ID doesn't matter so use fake one.
|
|
unsigned AnonStructId = NullOut ? 0 : Context.getAnonymousStructId(TD);
|
|
|
|
// Mangle it as a source name in the form
|
|
// [n] $_<id>
|
|
// where n is the length of the string.
|
|
SmallString<8> Str;
|
|
Str += "$_";
|
|
Str += llvm::utostr(AnonStructId);
|
|
|
|
Out << Str.size();
|
|
Out << Str;
|
|
break;
|
|
}
|
|
|
|
case DeclarationName::ObjCZeroArgSelector:
|
|
case DeclarationName::ObjCOneArgSelector:
|
|
case DeclarationName::ObjCMultiArgSelector:
|
|
llvm_unreachable("Can't mangle Objective-C selector names here!");
|
|
|
|
case DeclarationName::CXXConstructorName: {
|
|
const CXXRecordDecl *InheritedFrom = nullptr;
|
|
const TemplateArgumentList *InheritedTemplateArgs = nullptr;
|
|
if (auto Inherited =
|
|
cast<CXXConstructorDecl>(ND)->getInheritedConstructor()) {
|
|
InheritedFrom = Inherited.getConstructor()->getParent();
|
|
InheritedTemplateArgs =
|
|
Inherited.getConstructor()->getTemplateSpecializationArgs();
|
|
}
|
|
|
|
if (ND == Structor)
|
|
// If the named decl is the C++ constructor we're mangling, use the type
|
|
// we were given.
|
|
mangleCXXCtorType(static_cast<CXXCtorType>(StructorType), InheritedFrom);
|
|
else
|
|
// Otherwise, use the complete constructor name. This is relevant if a
|
|
// class with a constructor is declared within a constructor.
|
|
mangleCXXCtorType(Ctor_Complete, InheritedFrom);
|
|
|
|
// FIXME: The template arguments are part of the enclosing prefix or
|
|
// nested-name, but it's more convenient to mangle them here.
|
|
if (InheritedTemplateArgs)
|
|
mangleTemplateArgs(*InheritedTemplateArgs);
|
|
|
|
writeAbiTags(ND, AdditionalAbiTags);
|
|
break;
|
|
}
|
|
|
|
case DeclarationName::CXXDestructorName:
|
|
if (ND == Structor)
|
|
// If the named decl is the C++ destructor we're mangling, use the type we
|
|
// were given.
|
|
mangleCXXDtorType(static_cast<CXXDtorType>(StructorType));
|
|
else
|
|
// Otherwise, use the complete destructor name. This is relevant if a
|
|
// class with a destructor is declared within a destructor.
|
|
mangleCXXDtorType(Dtor_Complete);
|
|
writeAbiTags(ND, AdditionalAbiTags);
|
|
break;
|
|
|
|
case DeclarationName::CXXOperatorName:
|
|
if (ND && Arity == UnknownArity) {
|
|
Arity = cast<FunctionDecl>(ND)->getNumParams();
|
|
|
|
// If we have a member function, we need to include the 'this' pointer.
|
|
if (const auto *MD = dyn_cast<CXXMethodDecl>(ND))
|
|
if (!MD->isStatic())
|
|
Arity++;
|
|
}
|
|
// FALLTHROUGH
|
|
case DeclarationName::CXXConversionFunctionName:
|
|
case DeclarationName::CXXLiteralOperatorName:
|
|
mangleOperatorName(Name, Arity);
|
|
writeAbiTags(ND, AdditionalAbiTags);
|
|
break;
|
|
|
|
case DeclarationName::CXXUsingDirective:
|
|
llvm_unreachable("Can't mangle a using directive name!");
|
|
}
|
|
}
|
|
|
|
void CXXNameMangler::mangleSourceName(const IdentifierInfo *II) {
|
|
// <source-name> ::= <positive length number> <identifier>
|
|
// <number> ::= [n] <non-negative decimal integer>
|
|
// <identifier> ::= <unqualified source code identifier>
|
|
Out << II->getLength() << II->getName();
|
|
}
|
|
|
|
void CXXNameMangler::mangleNestedName(const NamedDecl *ND,
|
|
const DeclContext *DC,
|
|
const AbiTagList *AdditionalAbiTags,
|
|
bool NoFunction) {
|
|
// <nested-name>
|
|
// ::= N [<CV-qualifiers>] [<ref-qualifier>] <prefix> <unqualified-name> E
|
|
// ::= N [<CV-qualifiers>] [<ref-qualifier>] <template-prefix>
|
|
// <template-args> E
|
|
|
|
Out << 'N';
|
|
if (const CXXMethodDecl *Method = dyn_cast<CXXMethodDecl>(ND)) {
|
|
Qualifiers MethodQuals =
|
|
Qualifiers::fromCVRMask(Method->getTypeQualifiers());
|
|
// We do not consider restrict a distinguishing attribute for overloading
|
|
// purposes so we must not mangle it.
|
|
MethodQuals.removeRestrict();
|
|
mangleQualifiers(MethodQuals);
|
|
mangleRefQualifier(Method->getRefQualifier());
|
|
}
|
|
|
|
// Check if we have a template.
|
|
const TemplateArgumentList *TemplateArgs = nullptr;
|
|
if (const TemplateDecl *TD = isTemplate(ND, TemplateArgs)) {
|
|
mangleTemplatePrefix(TD, NoFunction);
|
|
mangleTemplateArgs(*TemplateArgs);
|
|
}
|
|
else {
|
|
manglePrefix(DC, NoFunction);
|
|
mangleUnqualifiedName(ND, AdditionalAbiTags);
|
|
}
|
|
|
|
Out << 'E';
|
|
}
|
|
void CXXNameMangler::mangleNestedName(const TemplateDecl *TD,
|
|
const TemplateArgument *TemplateArgs,
|
|
unsigned NumTemplateArgs) {
|
|
// <nested-name> ::= N [<CV-qualifiers>] <template-prefix> <template-args> E
|
|
|
|
Out << 'N';
|
|
|
|
mangleTemplatePrefix(TD);
|
|
mangleTemplateArgs(TemplateArgs, NumTemplateArgs);
|
|
|
|
Out << 'E';
|
|
}
|
|
|
|
void CXXNameMangler::mangleLocalName(const Decl *D,
|
|
const AbiTagList *AdditionalAbiTags) {
|
|
// <local-name> := Z <function encoding> E <entity name> [<discriminator>]
|
|
// := Z <function encoding> E s [<discriminator>]
|
|
// <local-name> := Z <function encoding> E d [ <parameter number> ]
|
|
// _ <entity name>
|
|
// <discriminator> := _ <non-negative number>
|
|
assert(isa<NamedDecl>(D) || isa<BlockDecl>(D));
|
|
const RecordDecl *RD = GetLocalClassDecl(D);
|
|
const DeclContext *DC = getEffectiveDeclContext(RD ? RD : D);
|
|
|
|
Out << 'Z';
|
|
|
|
{
|
|
AbiTagState LocalAbiTags(AbiTags);
|
|
|
|
if (const ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(DC))
|
|
mangleObjCMethodName(MD);
|
|
else if (const BlockDecl *BD = dyn_cast<BlockDecl>(DC))
|
|
mangleBlockForPrefix(BD);
|
|
else
|
|
mangleFunctionEncoding(cast<FunctionDecl>(DC));
|
|
|
|
// Implicit ABI tags (from namespace) are not available in the following
|
|
// entity; reset to actually emitted tags, which are available.
|
|
LocalAbiTags.setUsedAbiTags(LocalAbiTags.getEmittedAbiTags());
|
|
}
|
|
|
|
Out << 'E';
|
|
|
|
// GCC 5.3.0 doesn't emit derived ABI tags for local names but that seems to
|
|
// be a bug that is fixed in trunk.
|
|
|
|
if (RD) {
|
|
// The parameter number is omitted for the last parameter, 0 for the
|
|
// second-to-last parameter, 1 for the third-to-last parameter, etc. The
|
|
// <entity name> will of course contain a <closure-type-name>: Its
|
|
// numbering will be local to the particular argument in which it appears
|
|
// -- other default arguments do not affect its encoding.
|
|
const CXXRecordDecl *CXXRD = dyn_cast<CXXRecordDecl>(RD);
|
|
if (CXXRD && CXXRD->isLambda()) {
|
|
if (const ParmVarDecl *Parm
|
|
= dyn_cast_or_null<ParmVarDecl>(CXXRD->getLambdaContextDecl())) {
|
|
if (const FunctionDecl *Func
|
|
= dyn_cast<FunctionDecl>(Parm->getDeclContext())) {
|
|
Out << 'd';
|
|
unsigned Num = Func->getNumParams() - Parm->getFunctionScopeIndex();
|
|
if (Num > 1)
|
|
mangleNumber(Num - 2);
|
|
Out << '_';
|
|
}
|
|
}
|
|
}
|
|
|
|
// Mangle the name relative to the closest enclosing function.
|
|
// equality ok because RD derived from ND above
|
|
if (D == RD) {
|
|
mangleUnqualifiedName(RD, AdditionalAbiTags);
|
|
} else if (const BlockDecl *BD = dyn_cast<BlockDecl>(D)) {
|
|
manglePrefix(getEffectiveDeclContext(BD), true /*NoFunction*/);
|
|
assert(!AdditionalAbiTags && "Block cannot have additional abi tags");
|
|
mangleUnqualifiedBlock(BD);
|
|
} else {
|
|
const NamedDecl *ND = cast<NamedDecl>(D);
|
|
mangleNestedName(ND, getEffectiveDeclContext(ND), AdditionalAbiTags,
|
|
true /*NoFunction*/);
|
|
}
|
|
} else if (const BlockDecl *BD = dyn_cast<BlockDecl>(D)) {
|
|
// Mangle a block in a default parameter; see above explanation for
|
|
// lambdas.
|
|
if (const ParmVarDecl *Parm
|
|
= dyn_cast_or_null<ParmVarDecl>(BD->getBlockManglingContextDecl())) {
|
|
if (const FunctionDecl *Func
|
|
= dyn_cast<FunctionDecl>(Parm->getDeclContext())) {
|
|
Out << 'd';
|
|
unsigned Num = Func->getNumParams() - Parm->getFunctionScopeIndex();
|
|
if (Num > 1)
|
|
mangleNumber(Num - 2);
|
|
Out << '_';
|
|
}
|
|
}
|
|
|
|
assert(!AdditionalAbiTags && "Block cannot have additional abi tags");
|
|
mangleUnqualifiedBlock(BD);
|
|
} else {
|
|
mangleUnqualifiedName(cast<NamedDecl>(D), AdditionalAbiTags);
|
|
}
|
|
|
|
if (const NamedDecl *ND = dyn_cast<NamedDecl>(RD ? RD : D)) {
|
|
unsigned disc;
|
|
if (Context.getNextDiscriminator(ND, disc)) {
|
|
if (disc < 10)
|
|
Out << '_' << disc;
|
|
else
|
|
Out << "__" << disc << '_';
|
|
}
|
|
}
|
|
}
|
|
|
|
void CXXNameMangler::mangleBlockForPrefix(const BlockDecl *Block) {
|
|
if (GetLocalClassDecl(Block)) {
|
|
mangleLocalName(Block, /* AdditionalAbiTags */ nullptr);
|
|
return;
|
|
}
|
|
const DeclContext *DC = getEffectiveDeclContext(Block);
|
|
if (isLocalContainerContext(DC)) {
|
|
mangleLocalName(Block, /* AdditionalAbiTags */ nullptr);
|
|
return;
|
|
}
|
|
manglePrefix(getEffectiveDeclContext(Block));
|
|
mangleUnqualifiedBlock(Block);
|
|
}
|
|
|
|
void CXXNameMangler::mangleUnqualifiedBlock(const BlockDecl *Block) {
|
|
if (Decl *Context = Block->getBlockManglingContextDecl()) {
|
|
if ((isa<VarDecl>(Context) || isa<FieldDecl>(Context)) &&
|
|
Context->getDeclContext()->isRecord()) {
|
|
const auto *ND = cast<NamedDecl>(Context);
|
|
if (ND->getIdentifier()) {
|
|
mangleSourceNameWithAbiTags(ND);
|
|
Out << 'M';
|
|
}
|
|
}
|
|
}
|
|
|
|
// If we have a block mangling number, use it.
|
|
unsigned Number = Block->getBlockManglingNumber();
|
|
// Otherwise, just make up a number. It doesn't matter what it is because
|
|
// the symbol in question isn't externally visible.
|
|
if (!Number)
|
|
Number = Context.getBlockId(Block, false);
|
|
Out << "Ub";
|
|
if (Number > 0)
|
|
Out << Number - 1;
|
|
Out << '_';
|
|
}
|
|
|
|
void CXXNameMangler::mangleLambda(const CXXRecordDecl *Lambda) {
|
|
// If the context of a closure type is an initializer for a class member
|
|
// (static or nonstatic), it is encoded in a qualified name with a final
|
|
// <prefix> of the form:
|
|
//
|
|
// <data-member-prefix> := <member source-name> M
|
|
//
|
|
// Technically, the data-member-prefix is part of the <prefix>. However,
|
|
// since a closure type will always be mangled with a prefix, it's easier
|
|
// to emit that last part of the prefix here.
|
|
if (Decl *Context = Lambda->getLambdaContextDecl()) {
|
|
if ((isa<VarDecl>(Context) || isa<FieldDecl>(Context)) &&
|
|
Context->getDeclContext()->isRecord()) {
|
|
if (const IdentifierInfo *Name
|
|
= cast<NamedDecl>(Context)->getIdentifier()) {
|
|
mangleSourceName(Name);
|
|
Out << 'M';
|
|
}
|
|
}
|
|
}
|
|
|
|
Out << "Ul";
|
|
const FunctionProtoType *Proto = Lambda->getLambdaTypeInfo()->getType()->
|
|
getAs<FunctionProtoType>();
|
|
mangleBareFunctionType(Proto, /*MangleReturnType=*/false,
|
|
Lambda->getLambdaStaticInvoker());
|
|
Out << "E";
|
|
|
|
// The number is omitted for the first closure type with a given
|
|
// <lambda-sig> in a given context; it is n-2 for the nth closure type
|
|
// (in lexical order) with that same <lambda-sig> and context.
|
|
//
|
|
// The AST keeps track of the number for us.
|
|
unsigned Number = Lambda->getLambdaManglingNumber();
|
|
assert(Number > 0 && "Lambda should be mangled as an unnamed class");
|
|
if (Number > 1)
|
|
mangleNumber(Number - 2);
|
|
Out << '_';
|
|
}
|
|
|
|
void CXXNameMangler::manglePrefix(NestedNameSpecifier *qualifier) {
|
|
switch (qualifier->getKind()) {
|
|
case NestedNameSpecifier::Global:
|
|
// nothing
|
|
return;
|
|
|
|
case NestedNameSpecifier::Super:
|
|
llvm_unreachable("Can't mangle __super specifier");
|
|
|
|
case NestedNameSpecifier::Namespace:
|
|
mangleName(qualifier->getAsNamespace());
|
|
return;
|
|
|
|
case NestedNameSpecifier::NamespaceAlias:
|
|
mangleName(qualifier->getAsNamespaceAlias()->getNamespace());
|
|
return;
|
|
|
|
case NestedNameSpecifier::TypeSpec:
|
|
case NestedNameSpecifier::TypeSpecWithTemplate:
|
|
manglePrefix(QualType(qualifier->getAsType(), 0));
|
|
return;
|
|
|
|
case NestedNameSpecifier::Identifier:
|
|
// Member expressions can have these without prefixes, but that
|
|
// should end up in mangleUnresolvedPrefix instead.
|
|
assert(qualifier->getPrefix());
|
|
manglePrefix(qualifier->getPrefix());
|
|
|
|
mangleSourceName(qualifier->getAsIdentifier());
|
|
return;
|
|
}
|
|
|
|
llvm_unreachable("unexpected nested name specifier");
|
|
}
|
|
|
|
void CXXNameMangler::manglePrefix(const DeclContext *DC, bool NoFunction) {
|
|
// <prefix> ::= <prefix> <unqualified-name>
|
|
// ::= <template-prefix> <template-args>
|
|
// ::= <template-param>
|
|
// ::= # empty
|
|
// ::= <substitution>
|
|
|
|
DC = IgnoreLinkageSpecDecls(DC);
|
|
|
|
if (DC->isTranslationUnit())
|
|
return;
|
|
|
|
if (NoFunction && isLocalContainerContext(DC))
|
|
return;
|
|
|
|
assert(!isLocalContainerContext(DC));
|
|
|
|
const NamedDecl *ND = cast<NamedDecl>(DC);
|
|
if (mangleSubstitution(ND))
|
|
return;
|
|
|
|
// Check if we have a template.
|
|
const TemplateArgumentList *TemplateArgs = nullptr;
|
|
if (const TemplateDecl *TD = isTemplate(ND, TemplateArgs)) {
|
|
mangleTemplatePrefix(TD);
|
|
mangleTemplateArgs(*TemplateArgs);
|
|
} else {
|
|
manglePrefix(getEffectiveDeclContext(ND), NoFunction);
|
|
mangleUnqualifiedName(ND, nullptr);
|
|
}
|
|
|
|
addSubstitution(ND);
|
|
}
|
|
|
|
void CXXNameMangler::mangleTemplatePrefix(TemplateName Template) {
|
|
// <template-prefix> ::= <prefix> <template unqualified-name>
|
|
// ::= <template-param>
|
|
// ::= <substitution>
|
|
if (TemplateDecl *TD = Template.getAsTemplateDecl())
|
|
return mangleTemplatePrefix(TD);
|
|
|
|
if (QualifiedTemplateName *Qualified = Template.getAsQualifiedTemplateName())
|
|
manglePrefix(Qualified->getQualifier());
|
|
|
|
if (OverloadedTemplateStorage *Overloaded
|
|
= Template.getAsOverloadedTemplate()) {
|
|
mangleUnqualifiedName(nullptr, (*Overloaded->begin())->getDeclName(),
|
|
UnknownArity, nullptr);
|
|
return;
|
|
}
|
|
|
|
DependentTemplateName *Dependent = Template.getAsDependentTemplateName();
|
|
assert(Dependent && "Unknown template name kind?");
|
|
if (NestedNameSpecifier *Qualifier = Dependent->getQualifier())
|
|
manglePrefix(Qualifier);
|
|
mangleUnscopedTemplateName(Template, /* AdditionalAbiTags */ nullptr);
|
|
}
|
|
|
|
void CXXNameMangler::mangleTemplatePrefix(const TemplateDecl *ND,
|
|
bool NoFunction) {
|
|
// <template-prefix> ::= <prefix> <template unqualified-name>
|
|
// ::= <template-param>
|
|
// ::= <substitution>
|
|
// <template-template-param> ::= <template-param>
|
|
// <substitution>
|
|
|
|
if (mangleSubstitution(ND))
|
|
return;
|
|
|
|
// <template-template-param> ::= <template-param>
|
|
if (const auto *TTP = dyn_cast<TemplateTemplateParmDecl>(ND)) {
|
|
mangleTemplateParameter(TTP->getIndex());
|
|
} else {
|
|
manglePrefix(getEffectiveDeclContext(ND), NoFunction);
|
|
if (isa<BuiltinTemplateDecl>(ND))
|
|
mangleUnqualifiedName(ND, nullptr);
|
|
else
|
|
mangleUnqualifiedName(ND->getTemplatedDecl(), nullptr);
|
|
}
|
|
|
|
addSubstitution(ND);
|
|
}
|
|
|
|
/// Mangles a template name under the production <type>. Required for
|
|
/// template template arguments.
|
|
/// <type> ::= <class-enum-type>
|
|
/// ::= <template-param>
|
|
/// ::= <substitution>
|
|
void CXXNameMangler::mangleType(TemplateName TN) {
|
|
if (mangleSubstitution(TN))
|
|
return;
|
|
|
|
TemplateDecl *TD = nullptr;
|
|
|
|
switch (TN.getKind()) {
|
|
case TemplateName::QualifiedTemplate:
|
|
TD = TN.getAsQualifiedTemplateName()->getTemplateDecl();
|
|
goto HaveDecl;
|
|
|
|
case TemplateName::Template:
|
|
TD = TN.getAsTemplateDecl();
|
|
goto HaveDecl;
|
|
|
|
HaveDecl:
|
|
if (isa<TemplateTemplateParmDecl>(TD))
|
|
mangleTemplateParameter(cast<TemplateTemplateParmDecl>(TD)->getIndex());
|
|
else
|
|
mangleName(TD);
|
|
break;
|
|
|
|
case TemplateName::OverloadedTemplate:
|
|
llvm_unreachable("can't mangle an overloaded template name as a <type>");
|
|
|
|
case TemplateName::DependentTemplate: {
|
|
const DependentTemplateName *Dependent = TN.getAsDependentTemplateName();
|
|
assert(Dependent->isIdentifier());
|
|
|
|
// <class-enum-type> ::= <name>
|
|
// <name> ::= <nested-name>
|
|
mangleUnresolvedPrefix(Dependent->getQualifier());
|
|
mangleSourceName(Dependent->getIdentifier());
|
|
break;
|
|
}
|
|
|
|
case TemplateName::SubstTemplateTemplateParm: {
|
|
// Substituted template parameters are mangled as the substituted
|
|
// template. This will check for the substitution twice, which is
|
|
// fine, but we have to return early so that we don't try to *add*
|
|
// the substitution twice.
|
|
SubstTemplateTemplateParmStorage *subst
|
|
= TN.getAsSubstTemplateTemplateParm();
|
|
mangleType(subst->getReplacement());
|
|
return;
|
|
}
|
|
|
|
case TemplateName::SubstTemplateTemplateParmPack: {
|
|
// FIXME: not clear how to mangle this!
|
|
// template <template <class> class T...> class A {
|
|
// template <template <class> class U...> void foo(B<T,U> x...);
|
|
// };
|
|
Out << "_SUBSTPACK_";
|
|
break;
|
|
}
|
|
}
|
|
|
|
addSubstitution(TN);
|
|
}
|
|
|
|
bool CXXNameMangler::mangleUnresolvedTypeOrSimpleId(QualType Ty,
|
|
StringRef Prefix) {
|
|
// Only certain other types are valid as prefixes; enumerate them.
|
|
switch (Ty->getTypeClass()) {
|
|
case Type::Builtin:
|
|
case Type::Complex:
|
|
case Type::Adjusted:
|
|
case Type::Decayed:
|
|
case Type::Pointer:
|
|
case Type::BlockPointer:
|
|
case Type::LValueReference:
|
|
case Type::RValueReference:
|
|
case Type::MemberPointer:
|
|
case Type::ConstantArray:
|
|
case Type::IncompleteArray:
|
|
case Type::VariableArray:
|
|
case Type::DependentSizedArray:
|
|
case Type::DependentSizedExtVector:
|
|
case Type::Vector:
|
|
case Type::ExtVector:
|
|
case Type::FunctionProto:
|
|
case Type::FunctionNoProto:
|
|
case Type::Paren:
|
|
case Type::Attributed:
|
|
case Type::Auto:
|
|
case Type::PackExpansion:
|
|
case Type::ObjCObject:
|
|
case Type::ObjCInterface:
|
|
case Type::ObjCObjectPointer:
|
|
case Type::ObjCTypeParam:
|
|
case Type::Atomic:
|
|
case Type::Pipe:
|
|
llvm_unreachable("type is illegal as a nested name specifier");
|
|
|
|
case Type::SubstTemplateTypeParmPack:
|
|
// FIXME: not clear how to mangle this!
|
|
// template <class T...> class A {
|
|
// template <class U...> void foo(decltype(T::foo(U())) x...);
|
|
// };
|
|
Out << "_SUBSTPACK_";
|
|
break;
|
|
|
|
// <unresolved-type> ::= <template-param>
|
|
// ::= <decltype>
|
|
// ::= <template-template-param> <template-args>
|
|
// (this last is not official yet)
|
|
case Type::TypeOfExpr:
|
|
case Type::TypeOf:
|
|
case Type::Decltype:
|
|
case Type::TemplateTypeParm:
|
|
case Type::UnaryTransform:
|
|
case Type::SubstTemplateTypeParm:
|
|
unresolvedType:
|
|
// Some callers want a prefix before the mangled type.
|
|
Out << Prefix;
|
|
|
|
// This seems to do everything we want. It's not really
|
|
// sanctioned for a substituted template parameter, though.
|
|
mangleType(Ty);
|
|
|
|
// We never want to print 'E' directly after an unresolved-type,
|
|
// so we return directly.
|
|
return true;
|
|
|
|
case Type::Typedef:
|
|
mangleSourceNameWithAbiTags(cast<TypedefType>(Ty)->getDecl());
|
|
break;
|
|
|
|
case Type::UnresolvedUsing:
|
|
mangleSourceNameWithAbiTags(
|
|
cast<UnresolvedUsingType>(Ty)->getDecl());
|
|
break;
|
|
|
|
case Type::Enum:
|
|
case Type::Record:
|
|
mangleSourceNameWithAbiTags(cast<TagType>(Ty)->getDecl());
|
|
break;
|
|
|
|
case Type::TemplateSpecialization: {
|
|
const TemplateSpecializationType *TST =
|
|
cast<TemplateSpecializationType>(Ty);
|
|
TemplateName TN = TST->getTemplateName();
|
|
switch (TN.getKind()) {
|
|
case TemplateName::Template:
|
|
case TemplateName::QualifiedTemplate: {
|
|
TemplateDecl *TD = TN.getAsTemplateDecl();
|
|
|
|
// If the base is a template template parameter, this is an
|
|
// unresolved type.
|
|
assert(TD && "no template for template specialization type");
|
|
if (isa<TemplateTemplateParmDecl>(TD))
|
|
goto unresolvedType;
|
|
|
|
mangleSourceNameWithAbiTags(TD);
|
|
break;
|
|
}
|
|
|
|
case TemplateName::OverloadedTemplate:
|
|
case TemplateName::DependentTemplate:
|
|
llvm_unreachable("invalid base for a template specialization type");
|
|
|
|
case TemplateName::SubstTemplateTemplateParm: {
|
|
SubstTemplateTemplateParmStorage *subst =
|
|
TN.getAsSubstTemplateTemplateParm();
|
|
mangleExistingSubstitution(subst->getReplacement());
|
|
break;
|
|
}
|
|
|
|
case TemplateName::SubstTemplateTemplateParmPack: {
|
|
// FIXME: not clear how to mangle this!
|
|
// template <template <class U> class T...> class A {
|
|
// template <class U...> void foo(decltype(T<U>::foo) x...);
|
|
// };
|
|
Out << "_SUBSTPACK_";
|
|
break;
|
|
}
|
|
}
|
|
|
|
mangleTemplateArgs(TST->getArgs(), TST->getNumArgs());
|
|
break;
|
|
}
|
|
|
|
case Type::InjectedClassName:
|
|
mangleSourceNameWithAbiTags(
|
|
cast<InjectedClassNameType>(Ty)->getDecl());
|
|
break;
|
|
|
|
case Type::DependentName:
|
|
mangleSourceName(cast<DependentNameType>(Ty)->getIdentifier());
|
|
break;
|
|
|
|
case Type::DependentTemplateSpecialization: {
|
|
const DependentTemplateSpecializationType *DTST =
|
|
cast<DependentTemplateSpecializationType>(Ty);
|
|
mangleSourceName(DTST->getIdentifier());
|
|
mangleTemplateArgs(DTST->getArgs(), DTST->getNumArgs());
|
|
break;
|
|
}
|
|
|
|
case Type::Elaborated:
|
|
return mangleUnresolvedTypeOrSimpleId(
|
|
cast<ElaboratedType>(Ty)->getNamedType(), Prefix);
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
void CXXNameMangler::mangleOperatorName(DeclarationName Name, unsigned Arity) {
|
|
switch (Name.getNameKind()) {
|
|
case DeclarationName::CXXConstructorName:
|
|
case DeclarationName::CXXDestructorName:
|
|
case DeclarationName::CXXUsingDirective:
|
|
case DeclarationName::Identifier:
|
|
case DeclarationName::ObjCMultiArgSelector:
|
|
case DeclarationName::ObjCOneArgSelector:
|
|
case DeclarationName::ObjCZeroArgSelector:
|
|
llvm_unreachable("Not an operator name");
|
|
|
|
case DeclarationName::CXXConversionFunctionName:
|
|
// <operator-name> ::= cv <type> # (cast)
|
|
Out << "cv";
|
|
mangleType(Name.getCXXNameType());
|
|
break;
|
|
|
|
case DeclarationName::CXXLiteralOperatorName:
|
|
Out << "li";
|
|
mangleSourceName(Name.getCXXLiteralIdentifier());
|
|
return;
|
|
|
|
case DeclarationName::CXXOperatorName:
|
|
mangleOperatorName(Name.getCXXOverloadedOperator(), Arity);
|
|
break;
|
|
}
|
|
}
|
|
|
|
void
|
|
CXXNameMangler::mangleOperatorName(OverloadedOperatorKind OO, unsigned Arity) {
|
|
switch (OO) {
|
|
// <operator-name> ::= nw # new
|
|
case OO_New: Out << "nw"; break;
|
|
// ::= na # new[]
|
|
case OO_Array_New: Out << "na"; break;
|
|
// ::= dl # delete
|
|
case OO_Delete: Out << "dl"; break;
|
|
// ::= da # delete[]
|
|
case OO_Array_Delete: Out << "da"; break;
|
|
// ::= ps # + (unary)
|
|
// ::= pl # + (binary or unknown)
|
|
case OO_Plus:
|
|
Out << (Arity == 1? "ps" : "pl"); break;
|
|
// ::= ng # - (unary)
|
|
// ::= mi # - (binary or unknown)
|
|
case OO_Minus:
|
|
Out << (Arity == 1? "ng" : "mi"); break;
|
|
// ::= ad # & (unary)
|
|
// ::= an # & (binary or unknown)
|
|
case OO_Amp:
|
|
Out << (Arity == 1? "ad" : "an"); break;
|
|
// ::= de # * (unary)
|
|
// ::= ml # * (binary or unknown)
|
|
case OO_Star:
|
|
// Use binary when unknown.
|
|
Out << (Arity == 1? "de" : "ml"); break;
|
|
// ::= co # ~
|
|
case OO_Tilde: Out << "co"; break;
|
|
// ::= dv # /
|
|
case OO_Slash: Out << "dv"; break;
|
|
// ::= rm # %
|
|
case OO_Percent: Out << "rm"; break;
|
|
// ::= or # |
|
|
case OO_Pipe: Out << "or"; break;
|
|
// ::= eo # ^
|
|
case OO_Caret: Out << "eo"; break;
|
|
// ::= aS # =
|
|
case OO_Equal: Out << "aS"; break;
|
|
// ::= pL # +=
|
|
case OO_PlusEqual: Out << "pL"; break;
|
|
// ::= mI # -=
|
|
case OO_MinusEqual: Out << "mI"; break;
|
|
// ::= mL # *=
|
|
case OO_StarEqual: Out << "mL"; break;
|
|
// ::= dV # /=
|
|
case OO_SlashEqual: Out << "dV"; break;
|
|
// ::= rM # %=
|
|
case OO_PercentEqual: Out << "rM"; break;
|
|
// ::= aN # &=
|
|
case OO_AmpEqual: Out << "aN"; break;
|
|
// ::= oR # |=
|
|
case OO_PipeEqual: Out << "oR"; break;
|
|
// ::= eO # ^=
|
|
case OO_CaretEqual: Out << "eO"; break;
|
|
// ::= ls # <<
|
|
case OO_LessLess: Out << "ls"; break;
|
|
// ::= rs # >>
|
|
case OO_GreaterGreater: Out << "rs"; break;
|
|
// ::= lS # <<=
|
|
case OO_LessLessEqual: Out << "lS"; break;
|
|
// ::= rS # >>=
|
|
case OO_GreaterGreaterEqual: Out << "rS"; break;
|
|
// ::= eq # ==
|
|
case OO_EqualEqual: Out << "eq"; break;
|
|
// ::= ne # !=
|
|
case OO_ExclaimEqual: Out << "ne"; break;
|
|
// ::= lt # <
|
|
case OO_Less: Out << "lt"; break;
|
|
// ::= gt # >
|
|
case OO_Greater: Out << "gt"; break;
|
|
// ::= le # <=
|
|
case OO_LessEqual: Out << "le"; break;
|
|
// ::= ge # >=
|
|
case OO_GreaterEqual: Out << "ge"; break;
|
|
// ::= nt # !
|
|
case OO_Exclaim: Out << "nt"; break;
|
|
// ::= aa # &&
|
|
case OO_AmpAmp: Out << "aa"; break;
|
|
// ::= oo # ||
|
|
case OO_PipePipe: Out << "oo"; break;
|
|
// ::= pp # ++
|
|
case OO_PlusPlus: Out << "pp"; break;
|
|
// ::= mm # --
|
|
case OO_MinusMinus: Out << "mm"; break;
|
|
// ::= cm # ,
|
|
case OO_Comma: Out << "cm"; break;
|
|
// ::= pm # ->*
|
|
case OO_ArrowStar: Out << "pm"; break;
|
|
// ::= pt # ->
|
|
case OO_Arrow: Out << "pt"; break;
|
|
// ::= cl # ()
|
|
case OO_Call: Out << "cl"; break;
|
|
// ::= ix # []
|
|
case OO_Subscript: Out << "ix"; break;
|
|
|
|
// ::= qu # ?
|
|
// The conditional operator can't be overloaded, but we still handle it when
|
|
// mangling expressions.
|
|
case OO_Conditional: Out << "qu"; break;
|
|
// Proposal on cxx-abi-dev, 2015-10-21.
|
|
// ::= aw # co_await
|
|
case OO_Coawait: Out << "aw"; break;
|
|
|
|
case OO_None:
|
|
case NUM_OVERLOADED_OPERATORS:
|
|
llvm_unreachable("Not an overloaded operator");
|
|
}
|
|
}
|
|
|
|
void CXXNameMangler::mangleQualifiers(Qualifiers Quals) {
|
|
// Vendor qualifiers come first.
|
|
|
|
// Address space qualifiers start with an ordinary letter.
|
|
if (Quals.hasAddressSpace()) {
|
|
// Address space extension:
|
|
//
|
|
// <type> ::= U <target-addrspace>
|
|
// <type> ::= U <OpenCL-addrspace>
|
|
// <type> ::= U <CUDA-addrspace>
|
|
|
|
SmallString<64> ASString;
|
|
unsigned AS = Quals.getAddressSpace();
|
|
|
|
if (Context.getASTContext().addressSpaceMapManglingFor(AS)) {
|
|
// <target-addrspace> ::= "AS" <address-space-number>
|
|
unsigned TargetAS = Context.getASTContext().getTargetAddressSpace(AS);
|
|
ASString = "AS" + llvm::utostr(TargetAS);
|
|
} else {
|
|
switch (AS) {
|
|
default: llvm_unreachable("Not a language specific address space");
|
|
// <OpenCL-addrspace> ::= "CL" [ "global" | "local" | "constant" ]
|
|
case LangAS::opencl_global: ASString = "CLglobal"; break;
|
|
case LangAS::opencl_local: ASString = "CLlocal"; break;
|
|
case LangAS::opencl_constant: ASString = "CLconstant"; break;
|
|
// <CUDA-addrspace> ::= "CU" [ "device" | "constant" | "shared" ]
|
|
case LangAS::cuda_device: ASString = "CUdevice"; break;
|
|
case LangAS::cuda_constant: ASString = "CUconstant"; break;
|
|
case LangAS::cuda_shared: ASString = "CUshared"; break;
|
|
}
|
|
}
|
|
mangleVendorQualifier(ASString);
|
|
}
|
|
|
|
// The ARC ownership qualifiers start with underscores.
|
|
switch (Quals.getObjCLifetime()) {
|
|
// Objective-C ARC Extension:
|
|
//
|
|
// <type> ::= U "__strong"
|
|
// <type> ::= U "__weak"
|
|
// <type> ::= U "__autoreleasing"
|
|
case Qualifiers::OCL_None:
|
|
break;
|
|
|
|
case Qualifiers::OCL_Weak:
|
|
mangleVendorQualifier("__weak");
|
|
break;
|
|
|
|
case Qualifiers::OCL_Strong:
|
|
mangleVendorQualifier("__strong");
|
|
break;
|
|
|
|
case Qualifiers::OCL_Autoreleasing:
|
|
mangleVendorQualifier("__autoreleasing");
|
|
break;
|
|
|
|
case Qualifiers::OCL_ExplicitNone:
|
|
// The __unsafe_unretained qualifier is *not* mangled, so that
|
|
// __unsafe_unretained types in ARC produce the same manglings as the
|
|
// equivalent (but, naturally, unqualified) types in non-ARC, providing
|
|
// better ABI compatibility.
|
|
//
|
|
// It's safe to do this because unqualified 'id' won't show up
|
|
// in any type signatures that need to be mangled.
|
|
break;
|
|
}
|
|
|
|
// <CV-qualifiers> ::= [r] [V] [K] # restrict (C99), volatile, const
|
|
if (Quals.hasRestrict())
|
|
Out << 'r';
|
|
if (Quals.hasVolatile())
|
|
Out << 'V';
|
|
if (Quals.hasConst())
|
|
Out << 'K';
|
|
}
|
|
|
|
void CXXNameMangler::mangleVendorQualifier(StringRef name) {
|
|
Out << 'U' << name.size() << name;
|
|
}
|
|
|
|
void CXXNameMangler::mangleRefQualifier(RefQualifierKind RefQualifier) {
|
|
// <ref-qualifier> ::= R # lvalue reference
|
|
// ::= O # rvalue-reference
|
|
switch (RefQualifier) {
|
|
case RQ_None:
|
|
break;
|
|
|
|
case RQ_LValue:
|
|
Out << 'R';
|
|
break;
|
|
|
|
case RQ_RValue:
|
|
Out << 'O';
|
|
break;
|
|
}
|
|
}
|
|
|
|
void CXXNameMangler::mangleObjCMethodName(const ObjCMethodDecl *MD) {
|
|
Context.mangleObjCMethodName(MD, Out);
|
|
}
|
|
|
|
static bool isTypeSubstitutable(Qualifiers Quals, const Type *Ty) {
|
|
if (Quals)
|
|
return true;
|
|
if (Ty->isSpecificBuiltinType(BuiltinType::ObjCSel))
|
|
return true;
|
|
if (Ty->isOpenCLSpecificType())
|
|
return true;
|
|
if (Ty->isBuiltinType())
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
void CXXNameMangler::mangleType(QualType T) {
|
|
// If our type is instantiation-dependent but not dependent, we mangle
|
|
// it as it was written in the source, removing any top-level sugar.
|
|
// Otherwise, use the canonical type.
|
|
//
|
|
// FIXME: This is an approximation of the instantiation-dependent name
|
|
// mangling rules, since we should really be using the type as written and
|
|
// augmented via semantic analysis (i.e., with implicit conversions and
|
|
// default template arguments) for any instantiation-dependent type.
|
|
// Unfortunately, that requires several changes to our AST:
|
|
// - Instantiation-dependent TemplateSpecializationTypes will need to be
|
|
// uniqued, so that we can handle substitutions properly
|
|
// - Default template arguments will need to be represented in the
|
|
// TemplateSpecializationType, since they need to be mangled even though
|
|
// they aren't written.
|
|
// - Conversions on non-type template arguments need to be expressed, since
|
|
// they can affect the mangling of sizeof/alignof.
|
|
if (!T->isInstantiationDependentType() || T->isDependentType())
|
|
T = T.getCanonicalType();
|
|
else {
|
|
// Desugar any types that are purely sugar.
|
|
do {
|
|
// Don't desugar through template specialization types that aren't
|
|
// type aliases. We need to mangle the template arguments as written.
|
|
if (const TemplateSpecializationType *TST
|
|
= dyn_cast<TemplateSpecializationType>(T))
|
|
if (!TST->isTypeAlias())
|
|
break;
|
|
|
|
QualType Desugared
|
|
= T.getSingleStepDesugaredType(Context.getASTContext());
|
|
if (Desugared == T)
|
|
break;
|
|
|
|
T = Desugared;
|
|
} while (true);
|
|
}
|
|
SplitQualType split = T.split();
|
|
Qualifiers quals = split.Quals;
|
|
const Type *ty = split.Ty;
|
|
|
|
bool isSubstitutable = isTypeSubstitutable(quals, ty);
|
|
if (isSubstitutable && mangleSubstitution(T))
|
|
return;
|
|
|
|
// If we're mangling a qualified array type, push the qualifiers to
|
|
// the element type.
|
|
if (quals && isa<ArrayType>(T)) {
|
|
ty = Context.getASTContext().getAsArrayType(T);
|
|
quals = Qualifiers();
|
|
|
|
// Note that we don't update T: we want to add the
|
|
// substitution at the original type.
|
|
}
|
|
|
|
if (quals) {
|
|
mangleQualifiers(quals);
|
|
// Recurse: even if the qualified type isn't yet substitutable,
|
|
// the unqualified type might be.
|
|
mangleType(QualType(ty, 0));
|
|
} else {
|
|
switch (ty->getTypeClass()) {
|
|
#define ABSTRACT_TYPE(CLASS, PARENT)
|
|
#define NON_CANONICAL_TYPE(CLASS, PARENT) \
|
|
case Type::CLASS: \
|
|
llvm_unreachable("can't mangle non-canonical type " #CLASS "Type"); \
|
|
return;
|
|
#define TYPE(CLASS, PARENT) \
|
|
case Type::CLASS: \
|
|
mangleType(static_cast<const CLASS##Type*>(ty)); \
|
|
break;
|
|
#include "clang/AST/TypeNodes.def"
|
|
}
|
|
}
|
|
|
|
// Add the substitution.
|
|
if (isSubstitutable)
|
|
addSubstitution(T);
|
|
}
|
|
|
|
void CXXNameMangler::mangleNameOrStandardSubstitution(const NamedDecl *ND) {
|
|
if (!mangleStandardSubstitution(ND))
|
|
mangleName(ND);
|
|
}
|
|
|
|
void CXXNameMangler::mangleType(const BuiltinType *T) {
|
|
// <type> ::= <builtin-type>
|
|
// <builtin-type> ::= v # void
|
|
// ::= w # wchar_t
|
|
// ::= b # bool
|
|
// ::= c # char
|
|
// ::= a # signed char
|
|
// ::= h # unsigned char
|
|
// ::= s # short
|
|
// ::= t # unsigned short
|
|
// ::= i # int
|
|
// ::= j # unsigned int
|
|
// ::= l # long
|
|
// ::= m # unsigned long
|
|
// ::= x # long long, __int64
|
|
// ::= y # unsigned long long, __int64
|
|
// ::= n # __int128
|
|
// ::= o # unsigned __int128
|
|
// ::= f # float
|
|
// ::= d # double
|
|
// ::= e # long double, __float80
|
|
// ::= g # __float128
|
|
// UNSUPPORTED: ::= Dd # IEEE 754r decimal floating point (64 bits)
|
|
// UNSUPPORTED: ::= De # IEEE 754r decimal floating point (128 bits)
|
|
// UNSUPPORTED: ::= Df # IEEE 754r decimal floating point (32 bits)
|
|
// ::= Dh # IEEE 754r half-precision floating point (16 bits)
|
|
// ::= Di # char32_t
|
|
// ::= Ds # char16_t
|
|
// ::= Dn # std::nullptr_t (i.e., decltype(nullptr))
|
|
// ::= u <source-name> # vendor extended type
|
|
std::string type_name;
|
|
switch (T->getKind()) {
|
|
case BuiltinType::Void:
|
|
Out << 'v';
|
|
break;
|
|
case BuiltinType::Bool:
|
|
Out << 'b';
|
|
break;
|
|
case BuiltinType::Char_U:
|
|
case BuiltinType::Char_S:
|
|
Out << 'c';
|
|
break;
|
|
case BuiltinType::UChar:
|
|
Out << 'h';
|
|
break;
|
|
case BuiltinType::UShort:
|
|
Out << 't';
|
|
break;
|
|
case BuiltinType::UInt:
|
|
Out << 'j';
|
|
break;
|
|
case BuiltinType::ULong:
|
|
Out << 'm';
|
|
break;
|
|
case BuiltinType::ULongLong:
|
|
Out << 'y';
|
|
break;
|
|
case BuiltinType::UInt128:
|
|
Out << 'o';
|
|
break;
|
|
case BuiltinType::SChar:
|
|
Out << 'a';
|
|
break;
|
|
case BuiltinType::WChar_S:
|
|
case BuiltinType::WChar_U:
|
|
Out << 'w';
|
|
break;
|
|
case BuiltinType::Char16:
|
|
Out << "Ds";
|
|
break;
|
|
case BuiltinType::Char32:
|
|
Out << "Di";
|
|
break;
|
|
case BuiltinType::Short:
|
|
Out << 's';
|
|
break;
|
|
case BuiltinType::Int:
|
|
Out << 'i';
|
|
break;
|
|
case BuiltinType::Long:
|
|
Out << 'l';
|
|
break;
|
|
case BuiltinType::LongLong:
|
|
Out << 'x';
|
|
break;
|
|
case BuiltinType::Int128:
|
|
Out << 'n';
|
|
break;
|
|
case BuiltinType::Half:
|
|
Out << "Dh";
|
|
break;
|
|
case BuiltinType::Float:
|
|
Out << 'f';
|
|
break;
|
|
case BuiltinType::Double:
|
|
Out << 'd';
|
|
break;
|
|
case BuiltinType::LongDouble:
|
|
Out << (getASTContext().getTargetInfo().useFloat128ManglingForLongDouble()
|
|
? 'g'
|
|
: 'e');
|
|
break;
|
|
case BuiltinType::Float128:
|
|
if (getASTContext().getTargetInfo().useFloat128ManglingForLongDouble())
|
|
Out << "U10__float128"; // Match the GCC mangling
|
|
else
|
|
Out << 'g';
|
|
break;
|
|
case BuiltinType::NullPtr:
|
|
Out << "Dn";
|
|
break;
|
|
|
|
#define BUILTIN_TYPE(Id, SingletonId)
|
|
#define PLACEHOLDER_TYPE(Id, SingletonId) \
|
|
case BuiltinType::Id:
|
|
#include "clang/AST/BuiltinTypes.def"
|
|
case BuiltinType::Dependent:
|
|
if (!NullOut)
|
|
llvm_unreachable("mangling a placeholder type");
|
|
break;
|
|
case BuiltinType::ObjCId:
|
|
Out << "11objc_object";
|
|
break;
|
|
case BuiltinType::ObjCClass:
|
|
Out << "10objc_class";
|
|
break;
|
|
case BuiltinType::ObjCSel:
|
|
Out << "13objc_selector";
|
|
break;
|
|
#define IMAGE_TYPE(ImgType, Id, SingletonId, Access, Suffix) \
|
|
case BuiltinType::Id: \
|
|
type_name = "ocl_" #ImgType "_" #Suffix; \
|
|
Out << type_name.size() << type_name; \
|
|
break;
|
|
#include "clang/Basic/OpenCLImageTypes.def"
|
|
case BuiltinType::OCLSampler:
|
|
Out << "11ocl_sampler";
|
|
break;
|
|
case BuiltinType::OCLEvent:
|
|
Out << "9ocl_event";
|
|
break;
|
|
case BuiltinType::OCLClkEvent:
|
|
Out << "12ocl_clkevent";
|
|
break;
|
|
case BuiltinType::OCLQueue:
|
|
Out << "9ocl_queue";
|
|
break;
|
|
case BuiltinType::OCLNDRange:
|
|
Out << "11ocl_ndrange";
|
|
break;
|
|
case BuiltinType::OCLReserveID:
|
|
Out << "13ocl_reserveid";
|
|
break;
|
|
}
|
|
}
|
|
|
|
StringRef CXXNameMangler::getCallingConvQualifierName(CallingConv CC) {
|
|
switch (CC) {
|
|
case CC_C:
|
|
return "";
|
|
|
|
case CC_X86StdCall:
|
|
case CC_X86FastCall:
|
|
case CC_X86ThisCall:
|
|
case CC_X86VectorCall:
|
|
case CC_X86Pascal:
|
|
case CC_X86_64Win64:
|
|
case CC_X86_64SysV:
|
|
case CC_AAPCS:
|
|
case CC_AAPCS_VFP:
|
|
case CC_IntelOclBicc:
|
|
case CC_SpirFunction:
|
|
case CC_OpenCLKernel:
|
|
case CC_PreserveMost:
|
|
case CC_PreserveAll:
|
|
// FIXME: we should be mangling all of the above.
|
|
return "";
|
|
|
|
case CC_Swift:
|
|
return "swiftcall";
|
|
}
|
|
llvm_unreachable("bad calling convention");
|
|
}
|
|
|
|
void CXXNameMangler::mangleExtFunctionInfo(const FunctionType *T) {
|
|
// Fast path.
|
|
if (T->getExtInfo() == FunctionType::ExtInfo())
|
|
return;
|
|
|
|
// Vendor-specific qualifiers are emitted in reverse alphabetical order.
|
|
// This will get more complicated in the future if we mangle other
|
|
// things here; but for now, since we mangle ns_returns_retained as
|
|
// a qualifier on the result type, we can get away with this:
|
|
StringRef CCQualifier = getCallingConvQualifierName(T->getExtInfo().getCC());
|
|
if (!CCQualifier.empty())
|
|
mangleVendorQualifier(CCQualifier);
|
|
|
|
// FIXME: regparm
|
|
// FIXME: noreturn
|
|
}
|
|
|
|
void
|
|
CXXNameMangler::mangleExtParameterInfo(FunctionProtoType::ExtParameterInfo PI) {
|
|
// Vendor-specific qualifiers are emitted in reverse alphabetical order.
|
|
|
|
// Note that these are *not* substitution candidates. Demanglers might
|
|
// have trouble with this if the parameter type is fully substituted.
|
|
|
|
switch (PI.getABI()) {
|
|
case ParameterABI::Ordinary:
|
|
break;
|
|
|
|
// All of these start with "swift", so they come before "ns_consumed".
|
|
case ParameterABI::SwiftContext:
|
|
case ParameterABI::SwiftErrorResult:
|
|
case ParameterABI::SwiftIndirectResult:
|
|
mangleVendorQualifier(getParameterABISpelling(PI.getABI()));
|
|
break;
|
|
}
|
|
|
|
if (PI.isConsumed())
|
|
mangleVendorQualifier("ns_consumed");
|
|
}
|
|
|
|
// <type> ::= <function-type>
|
|
// <function-type> ::= [<CV-qualifiers>] F [Y]
|
|
// <bare-function-type> [<ref-qualifier>] E
|
|
void CXXNameMangler::mangleType(const FunctionProtoType *T) {
|
|
mangleExtFunctionInfo(T);
|
|
|
|
// Mangle CV-qualifiers, if present. These are 'this' qualifiers,
|
|
// e.g. "const" in "int (A::*)() const".
|
|
mangleQualifiers(Qualifiers::fromCVRMask(T->getTypeQuals()));
|
|
|
|
Out << 'F';
|
|
|
|
// FIXME: We don't have enough information in the AST to produce the 'Y'
|
|
// encoding for extern "C" function types.
|
|
mangleBareFunctionType(T, /*MangleReturnType=*/true);
|
|
|
|
// Mangle the ref-qualifier, if present.
|
|
mangleRefQualifier(T->getRefQualifier());
|
|
|
|
Out << 'E';
|
|
}
|
|
|
|
void CXXNameMangler::mangleType(const FunctionNoProtoType *T) {
|
|
// Function types without prototypes can arise when mangling a function type
|
|
// within an overloadable function in C. We mangle these as the absence of any
|
|
// parameter types (not even an empty parameter list).
|
|
Out << 'F';
|
|
|
|
FunctionTypeDepthState saved = FunctionTypeDepth.push();
|
|
|
|
FunctionTypeDepth.enterResultType();
|
|
mangleType(T->getReturnType());
|
|
FunctionTypeDepth.leaveResultType();
|
|
|
|
FunctionTypeDepth.pop(saved);
|
|
Out << 'E';
|
|
}
|
|
|
|
void CXXNameMangler::mangleBareFunctionType(const FunctionProtoType *Proto,
|
|
bool MangleReturnType,
|
|
const FunctionDecl *FD) {
|
|
// Record that we're in a function type. See mangleFunctionParam
|
|
// for details on what we're trying to achieve here.
|
|
FunctionTypeDepthState saved = FunctionTypeDepth.push();
|
|
|
|
// <bare-function-type> ::= <signature type>+
|
|
if (MangleReturnType) {
|
|
FunctionTypeDepth.enterResultType();
|
|
|
|
// Mangle ns_returns_retained as an order-sensitive qualifier here.
|
|
if (Proto->getExtInfo().getProducesResult() && FD == nullptr)
|
|
mangleVendorQualifier("ns_returns_retained");
|
|
|
|
// Mangle the return type without any direct ARC ownership qualifiers.
|
|
QualType ReturnTy = Proto->getReturnType();
|
|
if (ReturnTy.getObjCLifetime()) {
|
|
auto SplitReturnTy = ReturnTy.split();
|
|
SplitReturnTy.Quals.removeObjCLifetime();
|
|
ReturnTy = getASTContext().getQualifiedType(SplitReturnTy);
|
|
}
|
|
mangleType(ReturnTy);
|
|
|
|
FunctionTypeDepth.leaveResultType();
|
|
}
|
|
|
|
if (Proto->getNumParams() == 0 && !Proto->isVariadic()) {
|
|
// <builtin-type> ::= v # void
|
|
Out << 'v';
|
|
|
|
FunctionTypeDepth.pop(saved);
|
|
return;
|
|
}
|
|
|
|
assert(!FD || FD->getNumParams() == Proto->getNumParams());
|
|
for (unsigned I = 0, E = Proto->getNumParams(); I != E; ++I) {
|
|
// Mangle extended parameter info as order-sensitive qualifiers here.
|
|
if (Proto->hasExtParameterInfos() && FD == nullptr) {
|
|
mangleExtParameterInfo(Proto->getExtParameterInfo(I));
|
|
}
|
|
|
|
// Mangle the type.
|
|
QualType ParamTy = Proto->getParamType(I);
|
|
mangleType(Context.getASTContext().getSignatureParameterType(ParamTy));
|
|
|
|
if (FD) {
|
|
if (auto *Attr = FD->getParamDecl(I)->getAttr<PassObjectSizeAttr>()) {
|
|
// Attr can only take 1 character, so we can hardcode the length below.
|
|
assert(Attr->getType() <= 9 && Attr->getType() >= 0);
|
|
Out << "U17pass_object_size" << Attr->getType();
|
|
}
|
|
}
|
|
}
|
|
|
|
FunctionTypeDepth.pop(saved);
|
|
|
|
// <builtin-type> ::= z # ellipsis
|
|
if (Proto->isVariadic())
|
|
Out << 'z';
|
|
}
|
|
|
|
// <type> ::= <class-enum-type>
|
|
// <class-enum-type> ::= <name>
|
|
void CXXNameMangler::mangleType(const UnresolvedUsingType *T) {
|
|
mangleName(T->getDecl());
|
|
}
|
|
|
|
// <type> ::= <class-enum-type>
|
|
// <class-enum-type> ::= <name>
|
|
void CXXNameMangler::mangleType(const EnumType *T) {
|
|
mangleType(static_cast<const TagType*>(T));
|
|
}
|
|
void CXXNameMangler::mangleType(const RecordType *T) {
|
|
mangleType(static_cast<const TagType*>(T));
|
|
}
|
|
void CXXNameMangler::mangleType(const TagType *T) {
|
|
mangleName(T->getDecl());
|
|
}
|
|
|
|
// <type> ::= <array-type>
|
|
// <array-type> ::= A <positive dimension number> _ <element type>
|
|
// ::= A [<dimension expression>] _ <element type>
|
|
void CXXNameMangler::mangleType(const ConstantArrayType *T) {
|
|
Out << 'A' << T->getSize() << '_';
|
|
mangleType(T->getElementType());
|
|
}
|
|
void CXXNameMangler::mangleType(const VariableArrayType *T) {
|
|
Out << 'A';
|
|
// decayed vla types (size 0) will just be skipped.
|
|
if (T->getSizeExpr())
|
|
mangleExpression(T->getSizeExpr());
|
|
Out << '_';
|
|
mangleType(T->getElementType());
|
|
}
|
|
void CXXNameMangler::mangleType(const DependentSizedArrayType *T) {
|
|
Out << 'A';
|
|
mangleExpression(T->getSizeExpr());
|
|
Out << '_';
|
|
mangleType(T->getElementType());
|
|
}
|
|
void CXXNameMangler::mangleType(const IncompleteArrayType *T) {
|
|
Out << "A_";
|
|
mangleType(T->getElementType());
|
|
}
|
|
|
|
// <type> ::= <pointer-to-member-type>
|
|
// <pointer-to-member-type> ::= M <class type> <member type>
|
|
void CXXNameMangler::mangleType(const MemberPointerType *T) {
|
|
Out << 'M';
|
|
mangleType(QualType(T->getClass(), 0));
|
|
QualType PointeeType = T->getPointeeType();
|
|
if (const FunctionProtoType *FPT = dyn_cast<FunctionProtoType>(PointeeType)) {
|
|
mangleType(FPT);
|
|
|
|
// Itanium C++ ABI 5.1.8:
|
|
//
|
|
// The type of a non-static member function is considered to be different,
|
|
// for the purposes of substitution, from the type of a namespace-scope or
|
|
// static member function whose type appears similar. The types of two
|
|
// non-static member functions are considered to be different, for the
|
|
// purposes of substitution, if the functions are members of different
|
|
// classes. In other words, for the purposes of substitution, the class of
|
|
// which the function is a member is considered part of the type of
|
|
// function.
|
|
|
|
// Given that we already substitute member function pointers as a
|
|
// whole, the net effect of this rule is just to unconditionally
|
|
// suppress substitution on the function type in a member pointer.
|
|
// We increment the SeqID here to emulate adding an entry to the
|
|
// substitution table.
|
|
++SeqID;
|
|
} else
|
|
mangleType(PointeeType);
|
|
}
|
|
|
|
// <type> ::= <template-param>
|
|
void CXXNameMangler::mangleType(const TemplateTypeParmType *T) {
|
|
mangleTemplateParameter(T->getIndex());
|
|
}
|
|
|
|
// <type> ::= <template-param>
|
|
void CXXNameMangler::mangleType(const SubstTemplateTypeParmPackType *T) {
|
|
// FIXME: not clear how to mangle this!
|
|
// template <class T...> class A {
|
|
// template <class U...> void foo(T(*)(U) x...);
|
|
// };
|
|
Out << "_SUBSTPACK_";
|
|
}
|
|
|
|
// <type> ::= P <type> # pointer-to
|
|
void CXXNameMangler::mangleType(const PointerType *T) {
|
|
Out << 'P';
|
|
mangleType(T->getPointeeType());
|
|
}
|
|
void CXXNameMangler::mangleType(const ObjCObjectPointerType *T) {
|
|
Out << 'P';
|
|
mangleType(T->getPointeeType());
|
|
}
|
|
|
|
// <type> ::= R <type> # reference-to
|
|
void CXXNameMangler::mangleType(const LValueReferenceType *T) {
|
|
Out << 'R';
|
|
mangleType(T->getPointeeType());
|
|
}
|
|
|
|
// <type> ::= O <type> # rvalue reference-to (C++0x)
|
|
void CXXNameMangler::mangleType(const RValueReferenceType *T) {
|
|
Out << 'O';
|
|
mangleType(T->getPointeeType());
|
|
}
|
|
|
|
// <type> ::= C <type> # complex pair (C 2000)
|
|
void CXXNameMangler::mangleType(const ComplexType *T) {
|
|
Out << 'C';
|
|
mangleType(T->getElementType());
|
|
}
|
|
|
|
// ARM's ABI for Neon vector types specifies that they should be mangled as
|
|
// if they are structs (to match ARM's initial implementation). The
|
|
// vector type must be one of the special types predefined by ARM.
|
|
void CXXNameMangler::mangleNeonVectorType(const VectorType *T) {
|
|
QualType EltType = T->getElementType();
|
|
assert(EltType->isBuiltinType() && "Neon vector element not a BuiltinType");
|
|
const char *EltName = nullptr;
|
|
if (T->getVectorKind() == VectorType::NeonPolyVector) {
|
|
switch (cast<BuiltinType>(EltType)->getKind()) {
|
|
case BuiltinType::SChar:
|
|
case BuiltinType::UChar:
|
|
EltName = "poly8_t";
|
|
break;
|
|
case BuiltinType::Short:
|
|
case BuiltinType::UShort:
|
|
EltName = "poly16_t";
|
|
break;
|
|
case BuiltinType::ULongLong:
|
|
EltName = "poly64_t";
|
|
break;
|
|
default: llvm_unreachable("unexpected Neon polynomial vector element type");
|
|
}
|
|
} else {
|
|
switch (cast<BuiltinType>(EltType)->getKind()) {
|
|
case BuiltinType::SChar: EltName = "int8_t"; break;
|
|
case BuiltinType::UChar: EltName = "uint8_t"; break;
|
|
case BuiltinType::Short: EltName = "int16_t"; break;
|
|
case BuiltinType::UShort: EltName = "uint16_t"; break;
|
|
case BuiltinType::Int: EltName = "int32_t"; break;
|
|
case BuiltinType::UInt: EltName = "uint32_t"; break;
|
|
case BuiltinType::LongLong: EltName = "int64_t"; break;
|
|
case BuiltinType::ULongLong: EltName = "uint64_t"; break;
|
|
case BuiltinType::Double: EltName = "float64_t"; break;
|
|
case BuiltinType::Float: EltName = "float32_t"; break;
|
|
case BuiltinType::Half: EltName = "float16_t";break;
|
|
default:
|
|
llvm_unreachable("unexpected Neon vector element type");
|
|
}
|
|
}
|
|
const char *BaseName = nullptr;
|
|
unsigned BitSize = (T->getNumElements() *
|
|
getASTContext().getTypeSize(EltType));
|
|
if (BitSize == 64)
|
|
BaseName = "__simd64_";
|
|
else {
|
|
assert(BitSize == 128 && "Neon vector type not 64 or 128 bits");
|
|
BaseName = "__simd128_";
|
|
}
|
|
Out << strlen(BaseName) + strlen(EltName);
|
|
Out << BaseName << EltName;
|
|
}
|
|
|
|
static StringRef mangleAArch64VectorBase(const BuiltinType *EltType) {
|
|
switch (EltType->getKind()) {
|
|
case BuiltinType::SChar:
|
|
return "Int8";
|
|
case BuiltinType::Short:
|
|
return "Int16";
|
|
case BuiltinType::Int:
|
|
return "Int32";
|
|
case BuiltinType::Long:
|
|
case BuiltinType::LongLong:
|
|
return "Int64";
|
|
case BuiltinType::UChar:
|
|
return "Uint8";
|
|
case BuiltinType::UShort:
|
|
return "Uint16";
|
|
case BuiltinType::UInt:
|
|
return "Uint32";
|
|
case BuiltinType::ULong:
|
|
case BuiltinType::ULongLong:
|
|
return "Uint64";
|
|
case BuiltinType::Half:
|
|
return "Float16";
|
|
case BuiltinType::Float:
|
|
return "Float32";
|
|
case BuiltinType::Double:
|
|
return "Float64";
|
|
default:
|
|
llvm_unreachable("Unexpected vector element base type");
|
|
}
|
|
}
|
|
|
|
// AArch64's ABI for Neon vector types specifies that they should be mangled as
|
|
// the equivalent internal name. The vector type must be one of the special
|
|
// types predefined by ARM.
|
|
void CXXNameMangler::mangleAArch64NeonVectorType(const VectorType *T) {
|
|
QualType EltType = T->getElementType();
|
|
assert(EltType->isBuiltinType() && "Neon vector element not a BuiltinType");
|
|
unsigned BitSize =
|
|
(T->getNumElements() * getASTContext().getTypeSize(EltType));
|
|
(void)BitSize; // Silence warning.
|
|
|
|
assert((BitSize == 64 || BitSize == 128) &&
|
|
"Neon vector type not 64 or 128 bits");
|
|
|
|
StringRef EltName;
|
|
if (T->getVectorKind() == VectorType::NeonPolyVector) {
|
|
switch (cast<BuiltinType>(EltType)->getKind()) {
|
|
case BuiltinType::UChar:
|
|
EltName = "Poly8";
|
|
break;
|
|
case BuiltinType::UShort:
|
|
EltName = "Poly16";
|
|
break;
|
|
case BuiltinType::ULong:
|
|
case BuiltinType::ULongLong:
|
|
EltName = "Poly64";
|
|
break;
|
|
default:
|
|
llvm_unreachable("unexpected Neon polynomial vector element type");
|
|
}
|
|
} else
|
|
EltName = mangleAArch64VectorBase(cast<BuiltinType>(EltType));
|
|
|
|
std::string TypeName =
|
|
("__" + EltName + "x" + Twine(T->getNumElements()) + "_t").str();
|
|
Out << TypeName.length() << TypeName;
|
|
}
|
|
|
|
// GNU extension: vector types
|
|
// <type> ::= <vector-type>
|
|
// <vector-type> ::= Dv <positive dimension number> _
|
|
// <extended element type>
|
|
// ::= Dv [<dimension expression>] _ <element type>
|
|
// <extended element type> ::= <element type>
|
|
// ::= p # AltiVec vector pixel
|
|
// ::= b # Altivec vector bool
|
|
void CXXNameMangler::mangleType(const VectorType *T) {
|
|
if ((T->getVectorKind() == VectorType::NeonVector ||
|
|
T->getVectorKind() == VectorType::NeonPolyVector)) {
|
|
llvm::Triple Target = getASTContext().getTargetInfo().getTriple();
|
|
llvm::Triple::ArchType Arch =
|
|
getASTContext().getTargetInfo().getTriple().getArch();
|
|
if ((Arch == llvm::Triple::aarch64 ||
|
|
Arch == llvm::Triple::aarch64_be) && !Target.isOSDarwin())
|
|
mangleAArch64NeonVectorType(T);
|
|
else
|
|
mangleNeonVectorType(T);
|
|
return;
|
|
}
|
|
Out << "Dv" << T->getNumElements() << '_';
|
|
if (T->getVectorKind() == VectorType::AltiVecPixel)
|
|
Out << 'p';
|
|
else if (T->getVectorKind() == VectorType::AltiVecBool)
|
|
Out << 'b';
|
|
else
|
|
mangleType(T->getElementType());
|
|
}
|
|
void CXXNameMangler::mangleType(const ExtVectorType *T) {
|
|
mangleType(static_cast<const VectorType*>(T));
|
|
}
|
|
void CXXNameMangler::mangleType(const DependentSizedExtVectorType *T) {
|
|
Out << "Dv";
|
|
mangleExpression(T->getSizeExpr());
|
|
Out << '_';
|
|
mangleType(T->getElementType());
|
|
}
|
|
|
|
void CXXNameMangler::mangleType(const PackExpansionType *T) {
|
|
// <type> ::= Dp <type> # pack expansion (C++0x)
|
|
Out << "Dp";
|
|
mangleType(T->getPattern());
|
|
}
|
|
|
|
void CXXNameMangler::mangleType(const ObjCInterfaceType *T) {
|
|
mangleSourceName(T->getDecl()->getIdentifier());
|
|
}
|
|
|
|
void CXXNameMangler::mangleType(const ObjCObjectType *T) {
|
|
// Treat __kindof as a vendor extended type qualifier.
|
|
if (T->isKindOfType())
|
|
Out << "U8__kindof";
|
|
|
|
if (!T->qual_empty()) {
|
|
// Mangle protocol qualifiers.
|
|
SmallString<64> QualStr;
|
|
llvm::raw_svector_ostream QualOS(QualStr);
|
|
QualOS << "objcproto";
|
|
for (const auto *I : T->quals()) {
|
|
StringRef name = I->getName();
|
|
QualOS << name.size() << name;
|
|
}
|
|
Out << 'U' << QualStr.size() << QualStr;
|
|
}
|
|
|
|
mangleType(T->getBaseType());
|
|
|
|
if (T->isSpecialized()) {
|
|
// Mangle type arguments as I <type>+ E
|
|
Out << 'I';
|
|
for (auto typeArg : T->getTypeArgs())
|
|
mangleType(typeArg);
|
|
Out << 'E';
|
|
}
|
|
}
|
|
|
|
void CXXNameMangler::mangleType(const BlockPointerType *T) {
|
|
Out << "U13block_pointer";
|
|
mangleType(T->getPointeeType());
|
|
}
|
|
|
|
void CXXNameMangler::mangleType(const InjectedClassNameType *T) {
|
|
// Mangle injected class name types as if the user had written the
|
|
// specialization out fully. It may not actually be possible to see
|
|
// this mangling, though.
|
|
mangleType(T->getInjectedSpecializationType());
|
|
}
|
|
|
|
void CXXNameMangler::mangleType(const TemplateSpecializationType *T) {
|
|
if (TemplateDecl *TD = T->getTemplateName().getAsTemplateDecl()) {
|
|
mangleTemplateName(TD, T->getArgs(), T->getNumArgs());
|
|
} else {
|
|
if (mangleSubstitution(QualType(T, 0)))
|
|
return;
|
|
|
|
mangleTemplatePrefix(T->getTemplateName());
|
|
|
|
// FIXME: GCC does not appear to mangle the template arguments when
|
|
// the template in question is a dependent template name. Should we
|
|
// emulate that badness?
|
|
mangleTemplateArgs(T->getArgs(), T->getNumArgs());
|
|
addSubstitution(QualType(T, 0));
|
|
}
|
|
}
|
|
|
|
void CXXNameMangler::mangleType(const DependentNameType *T) {
|
|
// Proposal by cxx-abi-dev, 2014-03-26
|
|
// <class-enum-type> ::= <name> # non-dependent or dependent type name or
|
|
// # dependent elaborated type specifier using
|
|
// # 'typename'
|
|
// ::= Ts <name> # dependent elaborated type specifier using
|
|
// # 'struct' or 'class'
|
|
// ::= Tu <name> # dependent elaborated type specifier using
|
|
// # 'union'
|
|
// ::= Te <name> # dependent elaborated type specifier using
|
|
// # 'enum'
|
|
switch (T->getKeyword()) {
|
|
case ETK_Typename:
|
|
break;
|
|
case ETK_Struct:
|
|
case ETK_Class:
|
|
case ETK_Interface:
|
|
Out << "Ts";
|
|
break;
|
|
case ETK_Union:
|
|
Out << "Tu";
|
|
break;
|
|
case ETK_Enum:
|
|
Out << "Te";
|
|
break;
|
|
default:
|
|
llvm_unreachable("unexpected keyword for dependent type name");
|
|
}
|
|
// Typename types are always nested
|
|
Out << 'N';
|
|
manglePrefix(T->getQualifier());
|
|
mangleSourceName(T->getIdentifier());
|
|
Out << 'E';
|
|
}
|
|
|
|
void CXXNameMangler::mangleType(const DependentTemplateSpecializationType *T) {
|
|
// Dependently-scoped template types are nested if they have a prefix.
|
|
Out << 'N';
|
|
|
|
// TODO: avoid making this TemplateName.
|
|
TemplateName Prefix =
|
|
getASTContext().getDependentTemplateName(T->getQualifier(),
|
|
T->getIdentifier());
|
|
mangleTemplatePrefix(Prefix);
|
|
|
|
// FIXME: GCC does not appear to mangle the template arguments when
|
|
// the template in question is a dependent template name. Should we
|
|
// emulate that badness?
|
|
mangleTemplateArgs(T->getArgs(), T->getNumArgs());
|
|
Out << 'E';
|
|
}
|
|
|
|
void CXXNameMangler::mangleType(const TypeOfType *T) {
|
|
// FIXME: this is pretty unsatisfactory, but there isn't an obvious
|
|
// "extension with parameters" mangling.
|
|
Out << "u6typeof";
|
|
}
|
|
|
|
void CXXNameMangler::mangleType(const TypeOfExprType *T) {
|
|
// FIXME: this is pretty unsatisfactory, but there isn't an obvious
|
|
// "extension with parameters" mangling.
|
|
Out << "u6typeof";
|
|
}
|
|
|
|
void CXXNameMangler::mangleType(const DecltypeType *T) {
|
|
Expr *E = T->getUnderlyingExpr();
|
|
|
|
// type ::= Dt <expression> E # decltype of an id-expression
|
|
// # or class member access
|
|
// ::= DT <expression> E # decltype of an expression
|
|
|
|
// This purports to be an exhaustive list of id-expressions and
|
|
// class member accesses. Note that we do not ignore parentheses;
|
|
// parentheses change the semantics of decltype for these
|
|
// expressions (and cause the mangler to use the other form).
|
|
if (isa<DeclRefExpr>(E) ||
|
|
isa<MemberExpr>(E) ||
|
|
isa<UnresolvedLookupExpr>(E) ||
|
|
isa<DependentScopeDeclRefExpr>(E) ||
|
|
isa<CXXDependentScopeMemberExpr>(E) ||
|
|
isa<UnresolvedMemberExpr>(E))
|
|
Out << "Dt";
|
|
else
|
|
Out << "DT";
|
|
mangleExpression(E);
|
|
Out << 'E';
|
|
}
|
|
|
|
void CXXNameMangler::mangleType(const UnaryTransformType *T) {
|
|
// If this is dependent, we need to record that. If not, we simply
|
|
// mangle it as the underlying type since they are equivalent.
|
|
if (T->isDependentType()) {
|
|
Out << 'U';
|
|
|
|
switch (T->getUTTKind()) {
|
|
case UnaryTransformType::EnumUnderlyingType:
|
|
Out << "3eut";
|
|
break;
|
|
}
|
|
}
|
|
|
|
mangleType(T->getBaseType());
|
|
}
|
|
|
|
void CXXNameMangler::mangleType(const AutoType *T) {
|
|
QualType D = T->getDeducedType();
|
|
// <builtin-type> ::= Da # dependent auto
|
|
if (D.isNull()) {
|
|
assert(T->getKeyword() != AutoTypeKeyword::GNUAutoType &&
|
|
"shouldn't need to mangle __auto_type!");
|
|
Out << (T->isDecltypeAuto() ? "Dc" : "Da");
|
|
} else
|
|
mangleType(D);
|
|
}
|
|
|
|
void CXXNameMangler::mangleType(const AtomicType *T) {
|
|
// <type> ::= U <source-name> <type> # vendor extended type qualifier
|
|
// (Until there's a standardized mangling...)
|
|
Out << "U7_Atomic";
|
|
mangleType(T->getValueType());
|
|
}
|
|
|
|
void CXXNameMangler::mangleType(const PipeType *T) {
|
|
// Pipe type mangling rules are described in SPIR 2.0 specification
|
|
// A.1 Data types and A.3 Summary of changes
|
|
// <type> ::= 8ocl_pipe
|
|
Out << "8ocl_pipe";
|
|
}
|
|
|
|
void CXXNameMangler::mangleIntegerLiteral(QualType T,
|
|
const llvm::APSInt &Value) {
|
|
// <expr-primary> ::= L <type> <value number> E # integer literal
|
|
Out << 'L';
|
|
|
|
mangleType(T);
|
|
if (T->isBooleanType()) {
|
|
// Boolean values are encoded as 0/1.
|
|
Out << (Value.getBoolValue() ? '1' : '0');
|
|
} else {
|
|
mangleNumber(Value);
|
|
}
|
|
Out << 'E';
|
|
|
|
}
|
|
|
|
void CXXNameMangler::mangleMemberExprBase(const Expr *Base, bool IsArrow) {
|
|
// Ignore member expressions involving anonymous unions.
|
|
while (const auto *RT = Base->getType()->getAs<RecordType>()) {
|
|
if (!RT->getDecl()->isAnonymousStructOrUnion())
|
|
break;
|
|
const auto *ME = dyn_cast<MemberExpr>(Base);
|
|
if (!ME)
|
|
break;
|
|
Base = ME->getBase();
|
|
IsArrow = ME->isArrow();
|
|
}
|
|
|
|
if (Base->isImplicitCXXThis()) {
|
|
// Note: GCC mangles member expressions to the implicit 'this' as
|
|
// *this., whereas we represent them as this->. The Itanium C++ ABI
|
|
// does not specify anything here, so we follow GCC.
|
|
Out << "dtdefpT";
|
|
} else {
|
|
Out << (IsArrow ? "pt" : "dt");
|
|
mangleExpression(Base);
|
|
}
|
|
}
|
|
|
|
/// Mangles a member expression.
|
|
void CXXNameMangler::mangleMemberExpr(const Expr *base,
|
|
bool isArrow,
|
|
NestedNameSpecifier *qualifier,
|
|
NamedDecl *firstQualifierLookup,
|
|
DeclarationName member,
|
|
unsigned arity) {
|
|
// <expression> ::= dt <expression> <unresolved-name>
|
|
// ::= pt <expression> <unresolved-name>
|
|
if (base)
|
|
mangleMemberExprBase(base, isArrow);
|
|
mangleUnresolvedName(qualifier, member, arity);
|
|
}
|
|
|
|
/// Look at the callee of the given call expression and determine if
|
|
/// it's a parenthesized id-expression which would have triggered ADL
|
|
/// otherwise.
|
|
static bool isParenthesizedADLCallee(const CallExpr *call) {
|
|
const Expr *callee = call->getCallee();
|
|
const Expr *fn = callee->IgnoreParens();
|
|
|
|
// Must be parenthesized. IgnoreParens() skips __extension__ nodes,
|
|
// too, but for those to appear in the callee, it would have to be
|
|
// parenthesized.
|
|
if (callee == fn) return false;
|
|
|
|
// Must be an unresolved lookup.
|
|
const UnresolvedLookupExpr *lookup = dyn_cast<UnresolvedLookupExpr>(fn);
|
|
if (!lookup) return false;
|
|
|
|
assert(!lookup->requiresADL());
|
|
|
|
// Must be an unqualified lookup.
|
|
if (lookup->getQualifier()) return false;
|
|
|
|
// Must not have found a class member. Note that if one is a class
|
|
// member, they're all class members.
|
|
if (lookup->getNumDecls() > 0 &&
|
|
(*lookup->decls_begin())->isCXXClassMember())
|
|
return false;
|
|
|
|
// Otherwise, ADL would have been triggered.
|
|
return true;
|
|
}
|
|
|
|
void CXXNameMangler::mangleCastExpression(const Expr *E, StringRef CastEncoding) {
|
|
const ExplicitCastExpr *ECE = cast<ExplicitCastExpr>(E);
|
|
Out << CastEncoding;
|
|
mangleType(ECE->getType());
|
|
mangleExpression(ECE->getSubExpr());
|
|
}
|
|
|
|
void CXXNameMangler::mangleInitListElements(const InitListExpr *InitList) {
|
|
if (auto *Syntactic = InitList->getSyntacticForm())
|
|
InitList = Syntactic;
|
|
for (unsigned i = 0, e = InitList->getNumInits(); i != e; ++i)
|
|
mangleExpression(InitList->getInit(i));
|
|
}
|
|
|
|
void CXXNameMangler::mangleExpression(const Expr *E, unsigned Arity) {
|
|
// <expression> ::= <unary operator-name> <expression>
|
|
// ::= <binary operator-name> <expression> <expression>
|
|
// ::= <trinary operator-name> <expression> <expression> <expression>
|
|
// ::= cv <type> expression # conversion with one argument
|
|
// ::= cv <type> _ <expression>* E # conversion with a different number of arguments
|
|
// ::= dc <type> <expression> # dynamic_cast<type> (expression)
|
|
// ::= sc <type> <expression> # static_cast<type> (expression)
|
|
// ::= cc <type> <expression> # const_cast<type> (expression)
|
|
// ::= rc <type> <expression> # reinterpret_cast<type> (expression)
|
|
// ::= st <type> # sizeof (a type)
|
|
// ::= at <type> # alignof (a type)
|
|
// ::= <template-param>
|
|
// ::= <function-param>
|
|
// ::= sr <type> <unqualified-name> # dependent name
|
|
// ::= sr <type> <unqualified-name> <template-args> # dependent template-id
|
|
// ::= ds <expression> <expression> # expr.*expr
|
|
// ::= sZ <template-param> # size of a parameter pack
|
|
// ::= sZ <function-param> # size of a function parameter pack
|
|
// ::= <expr-primary>
|
|
// <expr-primary> ::= L <type> <value number> E # integer literal
|
|
// ::= L <type <value float> E # floating literal
|
|
// ::= L <mangled-name> E # external name
|
|
// ::= fpT # 'this' expression
|
|
QualType ImplicitlyConvertedToType;
|
|
|
|
recurse:
|
|
switch (E->getStmtClass()) {
|
|
case Expr::NoStmtClass:
|
|
#define ABSTRACT_STMT(Type)
|
|
#define EXPR(Type, Base)
|
|
#define STMT(Type, Base) \
|
|
case Expr::Type##Class:
|
|
#include "clang/AST/StmtNodes.inc"
|
|
// fallthrough
|
|
|
|
// These all can only appear in local or variable-initialization
|
|
// contexts and so should never appear in a mangling.
|
|
case Expr::AddrLabelExprClass:
|
|
case Expr::DesignatedInitUpdateExprClass:
|
|
case Expr::ImplicitValueInitExprClass:
|
|
case Expr::NoInitExprClass:
|
|
case Expr::ParenListExprClass:
|
|
case Expr::LambdaExprClass:
|
|
case Expr::MSPropertyRefExprClass:
|
|
case Expr::MSPropertySubscriptExprClass:
|
|
case Expr::TypoExprClass: // This should no longer exist in the AST by now.
|
|
case Expr::OMPArraySectionExprClass:
|
|
case Expr::CXXInheritedCtorInitExprClass:
|
|
llvm_unreachable("unexpected statement kind");
|
|
|
|
// FIXME: invent manglings for all these.
|
|
case Expr::BlockExprClass:
|
|
case Expr::ChooseExprClass:
|
|
case Expr::CompoundLiteralExprClass:
|
|
case Expr::DesignatedInitExprClass:
|
|
case Expr::ExtVectorElementExprClass:
|
|
case Expr::GenericSelectionExprClass:
|
|
case Expr::ObjCEncodeExprClass:
|
|
case Expr::ObjCIsaExprClass:
|
|
case Expr::ObjCIvarRefExprClass:
|
|
case Expr::ObjCMessageExprClass:
|
|
case Expr::ObjCPropertyRefExprClass:
|
|
case Expr::ObjCProtocolExprClass:
|
|
case Expr::ObjCSelectorExprClass:
|
|
case Expr::ObjCStringLiteralClass:
|
|
case Expr::ObjCBoxedExprClass:
|
|
case Expr::ObjCArrayLiteralClass:
|
|
case Expr::ObjCDictionaryLiteralClass:
|
|
case Expr::ObjCSubscriptRefExprClass:
|
|
case Expr::ObjCIndirectCopyRestoreExprClass:
|
|
case Expr::ObjCAvailabilityCheckExprClass:
|
|
case Expr::OffsetOfExprClass:
|
|
case Expr::PredefinedExprClass:
|
|
case Expr::ShuffleVectorExprClass:
|
|
case Expr::ConvertVectorExprClass:
|
|
case Expr::StmtExprClass:
|
|
case Expr::TypeTraitExprClass:
|
|
case Expr::ArrayTypeTraitExprClass:
|
|
case Expr::ExpressionTraitExprClass:
|
|
case Expr::VAArgExprClass:
|
|
case Expr::CUDAKernelCallExprClass:
|
|
case Expr::AsTypeExprClass:
|
|
case Expr::PseudoObjectExprClass:
|
|
case Expr::AtomicExprClass:
|
|
{
|
|
if (!NullOut) {
|
|
// As bad as this diagnostic is, it's better than crashing.
|
|
DiagnosticsEngine &Diags = Context.getDiags();
|
|
unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error,
|
|
"cannot yet mangle expression type %0");
|
|
Diags.Report(E->getExprLoc(), DiagID)
|
|
<< E->getStmtClassName() << E->getSourceRange();
|
|
}
|
|
break;
|
|
}
|
|
|
|
case Expr::CXXUuidofExprClass: {
|
|
const CXXUuidofExpr *UE = cast<CXXUuidofExpr>(E);
|
|
if (UE->isTypeOperand()) {
|
|
QualType UuidT = UE->getTypeOperand(Context.getASTContext());
|
|
Out << "u8__uuidoft";
|
|
mangleType(UuidT);
|
|
} else {
|
|
Expr *UuidExp = UE->getExprOperand();
|
|
Out << "u8__uuidofz";
|
|
mangleExpression(UuidExp, Arity);
|
|
}
|
|
break;
|
|
}
|
|
|
|
// Even gcc-4.5 doesn't mangle this.
|
|
case Expr::BinaryConditionalOperatorClass: {
|
|
DiagnosticsEngine &Diags = Context.getDiags();
|
|
unsigned DiagID =
|
|
Diags.getCustomDiagID(DiagnosticsEngine::Error,
|
|
"?: operator with omitted middle operand cannot be mangled");
|
|
Diags.Report(E->getExprLoc(), DiagID)
|
|
<< E->getStmtClassName() << E->getSourceRange();
|
|
break;
|
|
}
|
|
|
|
// These are used for internal purposes and cannot be meaningfully mangled.
|
|
case Expr::OpaqueValueExprClass:
|
|
llvm_unreachable("cannot mangle opaque value; mangling wrong thing?");
|
|
|
|
case Expr::InitListExprClass: {
|
|
Out << "il";
|
|
mangleInitListElements(cast<InitListExpr>(E));
|
|
Out << "E";
|
|
break;
|
|
}
|
|
|
|
case Expr::CXXDefaultArgExprClass:
|
|
mangleExpression(cast<CXXDefaultArgExpr>(E)->getExpr(), Arity);
|
|
break;
|
|
|
|
case Expr::CXXDefaultInitExprClass:
|
|
mangleExpression(cast<CXXDefaultInitExpr>(E)->getExpr(), Arity);
|
|
break;
|
|
|
|
case Expr::CXXStdInitializerListExprClass:
|
|
mangleExpression(cast<CXXStdInitializerListExpr>(E)->getSubExpr(), Arity);
|
|
break;
|
|
|
|
case Expr::SubstNonTypeTemplateParmExprClass:
|
|
mangleExpression(cast<SubstNonTypeTemplateParmExpr>(E)->getReplacement(),
|
|
Arity);
|
|
break;
|
|
|
|
case Expr::UserDefinedLiteralClass:
|
|
// We follow g++'s approach of mangling a UDL as a call to the literal
|
|
// operator.
|
|
case Expr::CXXMemberCallExprClass: // fallthrough
|
|
case Expr::CallExprClass: {
|
|
const CallExpr *CE = cast<CallExpr>(E);
|
|
|
|
// <expression> ::= cp <simple-id> <expression>* E
|
|
// We use this mangling only when the call would use ADL except
|
|
// for being parenthesized. Per discussion with David
|
|
// Vandervoorde, 2011.04.25.
|
|
if (isParenthesizedADLCallee(CE)) {
|
|
Out << "cp";
|
|
// The callee here is a parenthesized UnresolvedLookupExpr with
|
|
// no qualifier and should always get mangled as a <simple-id>
|
|
// anyway.
|
|
|
|
// <expression> ::= cl <expression>* E
|
|
} else {
|
|
Out << "cl";
|
|
}
|
|
|
|
unsigned CallArity = CE->getNumArgs();
|
|
for (const Expr *Arg : CE->arguments())
|
|
if (isa<PackExpansionExpr>(Arg))
|
|
CallArity = UnknownArity;
|
|
|
|
mangleExpression(CE->getCallee(), CallArity);
|
|
for (const Expr *Arg : CE->arguments())
|
|
mangleExpression(Arg);
|
|
Out << 'E';
|
|
break;
|
|
}
|
|
|
|
case Expr::CXXNewExprClass: {
|
|
const CXXNewExpr *New = cast<CXXNewExpr>(E);
|
|
if (New->isGlobalNew()) Out << "gs";
|
|
Out << (New->isArray() ? "na" : "nw");
|
|
for (CXXNewExpr::const_arg_iterator I = New->placement_arg_begin(),
|
|
E = New->placement_arg_end(); I != E; ++I)
|
|
mangleExpression(*I);
|
|
Out << '_';
|
|
mangleType(New->getAllocatedType());
|
|
if (New->hasInitializer()) {
|
|
if (New->getInitializationStyle() == CXXNewExpr::ListInit)
|
|
Out << "il";
|
|
else
|
|
Out << "pi";
|
|
const Expr *Init = New->getInitializer();
|
|
if (const CXXConstructExpr *CCE = dyn_cast<CXXConstructExpr>(Init)) {
|
|
// Directly inline the initializers.
|
|
for (CXXConstructExpr::const_arg_iterator I = CCE->arg_begin(),
|
|
E = CCE->arg_end();
|
|
I != E; ++I)
|
|
mangleExpression(*I);
|
|
} else if (const ParenListExpr *PLE = dyn_cast<ParenListExpr>(Init)) {
|
|
for (unsigned i = 0, e = PLE->getNumExprs(); i != e; ++i)
|
|
mangleExpression(PLE->getExpr(i));
|
|
} else if (New->getInitializationStyle() == CXXNewExpr::ListInit &&
|
|
isa<InitListExpr>(Init)) {
|
|
// Only take InitListExprs apart for list-initialization.
|
|
mangleInitListElements(cast<InitListExpr>(Init));
|
|
} else
|
|
mangleExpression(Init);
|
|
}
|
|
Out << 'E';
|
|
break;
|
|
}
|
|
|
|
case Expr::CXXPseudoDestructorExprClass: {
|
|
const auto *PDE = cast<CXXPseudoDestructorExpr>(E);
|
|
if (const Expr *Base = PDE->getBase())
|
|
mangleMemberExprBase(Base, PDE->isArrow());
|
|
NestedNameSpecifier *Qualifier = PDE->getQualifier();
|
|
QualType ScopeType;
|
|
if (TypeSourceInfo *ScopeInfo = PDE->getScopeTypeInfo()) {
|
|
if (Qualifier) {
|
|
mangleUnresolvedPrefix(Qualifier,
|
|
/*Recursive=*/true);
|
|
mangleUnresolvedTypeOrSimpleId(ScopeInfo->getType());
|
|
Out << 'E';
|
|
} else {
|
|
Out << "sr";
|
|
if (!mangleUnresolvedTypeOrSimpleId(ScopeInfo->getType()))
|
|
Out << 'E';
|
|
}
|
|
} else if (Qualifier) {
|
|
mangleUnresolvedPrefix(Qualifier);
|
|
}
|
|
// <base-unresolved-name> ::= dn <destructor-name>
|
|
Out << "dn";
|
|
QualType DestroyedType = PDE->getDestroyedType();
|
|
mangleUnresolvedTypeOrSimpleId(DestroyedType);
|
|
break;
|
|
}
|
|
|
|
case Expr::MemberExprClass: {
|
|
const MemberExpr *ME = cast<MemberExpr>(E);
|
|
mangleMemberExpr(ME->getBase(), ME->isArrow(),
|
|
ME->getQualifier(), nullptr,
|
|
ME->getMemberDecl()->getDeclName(), Arity);
|
|
break;
|
|
}
|
|
|
|
case Expr::UnresolvedMemberExprClass: {
|
|
const UnresolvedMemberExpr *ME = cast<UnresolvedMemberExpr>(E);
|
|
mangleMemberExpr(ME->isImplicitAccess() ? nullptr : ME->getBase(),
|
|
ME->isArrow(), ME->getQualifier(), nullptr,
|
|
ME->getMemberName(), Arity);
|
|
if (ME->hasExplicitTemplateArgs())
|
|
mangleTemplateArgs(ME->getTemplateArgs(), ME->getNumTemplateArgs());
|
|
break;
|
|
}
|
|
|
|
case Expr::CXXDependentScopeMemberExprClass: {
|
|
const CXXDependentScopeMemberExpr *ME
|
|
= cast<CXXDependentScopeMemberExpr>(E);
|
|
mangleMemberExpr(ME->isImplicitAccess() ? nullptr : ME->getBase(),
|
|
ME->isArrow(), ME->getQualifier(),
|
|
ME->getFirstQualifierFoundInScope(),
|
|
ME->getMember(), Arity);
|
|
if (ME->hasExplicitTemplateArgs())
|
|
mangleTemplateArgs(ME->getTemplateArgs(), ME->getNumTemplateArgs());
|
|
break;
|
|
}
|
|
|
|
case Expr::UnresolvedLookupExprClass: {
|
|
const UnresolvedLookupExpr *ULE = cast<UnresolvedLookupExpr>(E);
|
|
mangleUnresolvedName(ULE->getQualifier(), ULE->getName(), Arity);
|
|
|
|
// All the <unresolved-name> productions end in a
|
|
// base-unresolved-name, where <template-args> are just tacked
|
|
// onto the end.
|
|
if (ULE->hasExplicitTemplateArgs())
|
|
mangleTemplateArgs(ULE->getTemplateArgs(), ULE->getNumTemplateArgs());
|
|
break;
|
|
}
|
|
|
|
case Expr::CXXUnresolvedConstructExprClass: {
|
|
const CXXUnresolvedConstructExpr *CE = cast<CXXUnresolvedConstructExpr>(E);
|
|
unsigned N = CE->arg_size();
|
|
|
|
Out << "cv";
|
|
mangleType(CE->getType());
|
|
if (N != 1) Out << '_';
|
|
for (unsigned I = 0; I != N; ++I) mangleExpression(CE->getArg(I));
|
|
if (N != 1) Out << 'E';
|
|
break;
|
|
}
|
|
|
|
case Expr::CXXConstructExprClass: {
|
|
const auto *CE = cast<CXXConstructExpr>(E);
|
|
if (!CE->isListInitialization() || CE->isStdInitListInitialization()) {
|
|
assert(
|
|
CE->getNumArgs() >= 1 &&
|
|
(CE->getNumArgs() == 1 || isa<CXXDefaultArgExpr>(CE->getArg(1))) &&
|
|
"implicit CXXConstructExpr must have one argument");
|
|
return mangleExpression(cast<CXXConstructExpr>(E)->getArg(0));
|
|
}
|
|
Out << "il";
|
|
for (auto *E : CE->arguments())
|
|
mangleExpression(E);
|
|
Out << "E";
|
|
break;
|
|
}
|
|
|
|
case Expr::CXXTemporaryObjectExprClass: {
|
|
const auto *CE = cast<CXXTemporaryObjectExpr>(E);
|
|
unsigned N = CE->getNumArgs();
|
|
bool List = CE->isListInitialization();
|
|
|
|
if (List)
|
|
Out << "tl";
|
|
else
|
|
Out << "cv";
|
|
mangleType(CE->getType());
|
|
if (!List && N != 1)
|
|
Out << '_';
|
|
if (CE->isStdInitListInitialization()) {
|
|
// We implicitly created a std::initializer_list<T> for the first argument
|
|
// of a constructor of type U in an expression of the form U{a, b, c}.
|
|
// Strip all the semantic gunk off the initializer list.
|
|
auto *SILE =
|
|
cast<CXXStdInitializerListExpr>(CE->getArg(0)->IgnoreImplicit());
|
|
auto *ILE = cast<InitListExpr>(SILE->getSubExpr()->IgnoreImplicit());
|
|
mangleInitListElements(ILE);
|
|
} else {
|
|
for (auto *E : CE->arguments())
|
|
mangleExpression(E);
|
|
}
|
|
if (List || N != 1)
|
|
Out << 'E';
|
|
break;
|
|
}
|
|
|
|
case Expr::CXXScalarValueInitExprClass:
|
|
Out << "cv";
|
|
mangleType(E->getType());
|
|
Out << "_E";
|
|
break;
|
|
|
|
case Expr::CXXNoexceptExprClass:
|
|
Out << "nx";
|
|
mangleExpression(cast<CXXNoexceptExpr>(E)->getOperand());
|
|
break;
|
|
|
|
case Expr::UnaryExprOrTypeTraitExprClass: {
|
|
const UnaryExprOrTypeTraitExpr *SAE = cast<UnaryExprOrTypeTraitExpr>(E);
|
|
|
|
if (!SAE->isInstantiationDependent()) {
|
|
// Itanium C++ ABI:
|
|
// If the operand of a sizeof or alignof operator is not
|
|
// instantiation-dependent it is encoded as an integer literal
|
|
// reflecting the result of the operator.
|
|
//
|
|
// If the result of the operator is implicitly converted to a known
|
|
// integer type, that type is used for the literal; otherwise, the type
|
|
// of std::size_t or std::ptrdiff_t is used.
|
|
QualType T = (ImplicitlyConvertedToType.isNull() ||
|
|
!ImplicitlyConvertedToType->isIntegerType())? SAE->getType()
|
|
: ImplicitlyConvertedToType;
|
|
llvm::APSInt V = SAE->EvaluateKnownConstInt(Context.getASTContext());
|
|
mangleIntegerLiteral(T, V);
|
|
break;
|
|
}
|
|
|
|
switch(SAE->getKind()) {
|
|
case UETT_SizeOf:
|
|
Out << 's';
|
|
break;
|
|
case UETT_AlignOf:
|
|
Out << 'a';
|
|
break;
|
|
case UETT_VecStep: {
|
|
DiagnosticsEngine &Diags = Context.getDiags();
|
|
unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error,
|
|
"cannot yet mangle vec_step expression");
|
|
Diags.Report(DiagID);
|
|
return;
|
|
}
|
|
case UETT_OpenMPRequiredSimdAlign:
|
|
DiagnosticsEngine &Diags = Context.getDiags();
|
|
unsigned DiagID = Diags.getCustomDiagID(
|
|
DiagnosticsEngine::Error,
|
|
"cannot yet mangle __builtin_omp_required_simd_align expression");
|
|
Diags.Report(DiagID);
|
|
return;
|
|
}
|
|
if (SAE->isArgumentType()) {
|
|
Out << 't';
|
|
mangleType(SAE->getArgumentType());
|
|
} else {
|
|
Out << 'z';
|
|
mangleExpression(SAE->getArgumentExpr());
|
|
}
|
|
break;
|
|
}
|
|
|
|
case Expr::CXXThrowExprClass: {
|
|
const CXXThrowExpr *TE = cast<CXXThrowExpr>(E);
|
|
// <expression> ::= tw <expression> # throw expression
|
|
// ::= tr # rethrow
|
|
if (TE->getSubExpr()) {
|
|
Out << "tw";
|
|
mangleExpression(TE->getSubExpr());
|
|
} else {
|
|
Out << "tr";
|
|
}
|
|
break;
|
|
}
|
|
|
|
case Expr::CXXTypeidExprClass: {
|
|
const CXXTypeidExpr *TIE = cast<CXXTypeidExpr>(E);
|
|
// <expression> ::= ti <type> # typeid (type)
|
|
// ::= te <expression> # typeid (expression)
|
|
if (TIE->isTypeOperand()) {
|
|
Out << "ti";
|
|
mangleType(TIE->getTypeOperand(Context.getASTContext()));
|
|
} else {
|
|
Out << "te";
|
|
mangleExpression(TIE->getExprOperand());
|
|
}
|
|
break;
|
|
}
|
|
|
|
case Expr::CXXDeleteExprClass: {
|
|
const CXXDeleteExpr *DE = cast<CXXDeleteExpr>(E);
|
|
// <expression> ::= [gs] dl <expression> # [::] delete expr
|
|
// ::= [gs] da <expression> # [::] delete [] expr
|
|
if (DE->isGlobalDelete()) Out << "gs";
|
|
Out << (DE->isArrayForm() ? "da" : "dl");
|
|
mangleExpression(DE->getArgument());
|
|
break;
|
|
}
|
|
|
|
case Expr::UnaryOperatorClass: {
|
|
const UnaryOperator *UO = cast<UnaryOperator>(E);
|
|
mangleOperatorName(UnaryOperator::getOverloadedOperator(UO->getOpcode()),
|
|
/*Arity=*/1);
|
|
mangleExpression(UO->getSubExpr());
|
|
break;
|
|
}
|
|
|
|
case Expr::ArraySubscriptExprClass: {
|
|
const ArraySubscriptExpr *AE = cast<ArraySubscriptExpr>(E);
|
|
|
|
// Array subscript is treated as a syntactically weird form of
|
|
// binary operator.
|
|
Out << "ix";
|
|
mangleExpression(AE->getLHS());
|
|
mangleExpression(AE->getRHS());
|
|
break;
|
|
}
|
|
|
|
case Expr::CompoundAssignOperatorClass: // fallthrough
|
|
case Expr::BinaryOperatorClass: {
|
|
const BinaryOperator *BO = cast<BinaryOperator>(E);
|
|
if (BO->getOpcode() == BO_PtrMemD)
|
|
Out << "ds";
|
|
else
|
|
mangleOperatorName(BinaryOperator::getOverloadedOperator(BO->getOpcode()),
|
|
/*Arity=*/2);
|
|
mangleExpression(BO->getLHS());
|
|
mangleExpression(BO->getRHS());
|
|
break;
|
|
}
|
|
|
|
case Expr::ConditionalOperatorClass: {
|
|
const ConditionalOperator *CO = cast<ConditionalOperator>(E);
|
|
mangleOperatorName(OO_Conditional, /*Arity=*/3);
|
|
mangleExpression(CO->getCond());
|
|
mangleExpression(CO->getLHS(), Arity);
|
|
mangleExpression(CO->getRHS(), Arity);
|
|
break;
|
|
}
|
|
|
|
case Expr::ImplicitCastExprClass: {
|
|
ImplicitlyConvertedToType = E->getType();
|
|
E = cast<ImplicitCastExpr>(E)->getSubExpr();
|
|
goto recurse;
|
|
}
|
|
|
|
case Expr::ObjCBridgedCastExprClass: {
|
|
// Mangle ownership casts as a vendor extended operator __bridge,
|
|
// __bridge_transfer, or __bridge_retain.
|
|
StringRef Kind = cast<ObjCBridgedCastExpr>(E)->getBridgeKindName();
|
|
Out << "v1U" << Kind.size() << Kind;
|
|
}
|
|
// Fall through to mangle the cast itself.
|
|
|
|
case Expr::CStyleCastExprClass:
|
|
mangleCastExpression(E, "cv");
|
|
break;
|
|
|
|
case Expr::CXXFunctionalCastExprClass: {
|
|
auto *Sub = cast<ExplicitCastExpr>(E)->getSubExpr()->IgnoreImplicit();
|
|
// FIXME: Add isImplicit to CXXConstructExpr.
|
|
if (auto *CCE = dyn_cast<CXXConstructExpr>(Sub))
|
|
if (CCE->getParenOrBraceRange().isInvalid())
|
|
Sub = CCE->getArg(0)->IgnoreImplicit();
|
|
if (auto *StdInitList = dyn_cast<CXXStdInitializerListExpr>(Sub))
|
|
Sub = StdInitList->getSubExpr()->IgnoreImplicit();
|
|
if (auto *IL = dyn_cast<InitListExpr>(Sub)) {
|
|
Out << "tl";
|
|
mangleType(E->getType());
|
|
mangleInitListElements(IL);
|
|
Out << "E";
|
|
} else {
|
|
mangleCastExpression(E, "cv");
|
|
}
|
|
break;
|
|
}
|
|
|
|
case Expr::CXXStaticCastExprClass:
|
|
mangleCastExpression(E, "sc");
|
|
break;
|
|
case Expr::CXXDynamicCastExprClass:
|
|
mangleCastExpression(E, "dc");
|
|
break;
|
|
case Expr::CXXReinterpretCastExprClass:
|
|
mangleCastExpression(E, "rc");
|
|
break;
|
|
case Expr::CXXConstCastExprClass:
|
|
mangleCastExpression(E, "cc");
|
|
break;
|
|
|
|
case Expr::CXXOperatorCallExprClass: {
|
|
const CXXOperatorCallExpr *CE = cast<CXXOperatorCallExpr>(E);
|
|
unsigned NumArgs = CE->getNumArgs();
|
|
mangleOperatorName(CE->getOperator(), /*Arity=*/NumArgs);
|
|
// Mangle the arguments.
|
|
for (unsigned i = 0; i != NumArgs; ++i)
|
|
mangleExpression(CE->getArg(i));
|
|
break;
|
|
}
|
|
|
|
case Expr::ParenExprClass:
|
|
mangleExpression(cast<ParenExpr>(E)->getSubExpr(), Arity);
|
|
break;
|
|
|
|
case Expr::DeclRefExprClass: {
|
|
const NamedDecl *D = cast<DeclRefExpr>(E)->getDecl();
|
|
|
|
switch (D->getKind()) {
|
|
default:
|
|
// <expr-primary> ::= L <mangled-name> E # external name
|
|
Out << 'L';
|
|
mangle(D);
|
|
Out << 'E';
|
|
break;
|
|
|
|
case Decl::ParmVar:
|
|
mangleFunctionParam(cast<ParmVarDecl>(D));
|
|
break;
|
|
|
|
case Decl::EnumConstant: {
|
|
const EnumConstantDecl *ED = cast<EnumConstantDecl>(D);
|
|
mangleIntegerLiteral(ED->getType(), ED->getInitVal());
|
|
break;
|
|
}
|
|
|
|
case Decl::NonTypeTemplateParm: {
|
|
const NonTypeTemplateParmDecl *PD = cast<NonTypeTemplateParmDecl>(D);
|
|
mangleTemplateParameter(PD->getIndex());
|
|
break;
|
|
}
|
|
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
case Expr::SubstNonTypeTemplateParmPackExprClass:
|
|
// FIXME: not clear how to mangle this!
|
|
// template <unsigned N...> class A {
|
|
// template <class U...> void foo(U (&x)[N]...);
|
|
// };
|
|
Out << "_SUBSTPACK_";
|
|
break;
|
|
|
|
case Expr::FunctionParmPackExprClass: {
|
|
// FIXME: not clear how to mangle this!
|
|
const FunctionParmPackExpr *FPPE = cast<FunctionParmPackExpr>(E);
|
|
Out << "v110_SUBSTPACK";
|
|
mangleFunctionParam(FPPE->getParameterPack());
|
|
break;
|
|
}
|
|
|
|
case Expr::DependentScopeDeclRefExprClass: {
|
|
const DependentScopeDeclRefExpr *DRE = cast<DependentScopeDeclRefExpr>(E);
|
|
mangleUnresolvedName(DRE->getQualifier(), DRE->getDeclName(), Arity);
|
|
|
|
// All the <unresolved-name> productions end in a
|
|
// base-unresolved-name, where <template-args> are just tacked
|
|
// onto the end.
|
|
if (DRE->hasExplicitTemplateArgs())
|
|
mangleTemplateArgs(DRE->getTemplateArgs(), DRE->getNumTemplateArgs());
|
|
break;
|
|
}
|
|
|
|
case Expr::CXXBindTemporaryExprClass:
|
|
mangleExpression(cast<CXXBindTemporaryExpr>(E)->getSubExpr());
|
|
break;
|
|
|
|
case Expr::ExprWithCleanupsClass:
|
|
mangleExpression(cast<ExprWithCleanups>(E)->getSubExpr(), Arity);
|
|
break;
|
|
|
|
case Expr::FloatingLiteralClass: {
|
|
const FloatingLiteral *FL = cast<FloatingLiteral>(E);
|
|
Out << 'L';
|
|
mangleType(FL->getType());
|
|
mangleFloat(FL->getValue());
|
|
Out << 'E';
|
|
break;
|
|
}
|
|
|
|
case Expr::CharacterLiteralClass:
|
|
Out << 'L';
|
|
mangleType(E->getType());
|
|
Out << cast<CharacterLiteral>(E)->getValue();
|
|
Out << 'E';
|
|
break;
|
|
|
|
// FIXME. __objc_yes/__objc_no are mangled same as true/false
|
|
case Expr::ObjCBoolLiteralExprClass:
|
|
Out << "Lb";
|
|
Out << (cast<ObjCBoolLiteralExpr>(E)->getValue() ? '1' : '0');
|
|
Out << 'E';
|
|
break;
|
|
|
|
case Expr::CXXBoolLiteralExprClass:
|
|
Out << "Lb";
|
|
Out << (cast<CXXBoolLiteralExpr>(E)->getValue() ? '1' : '0');
|
|
Out << 'E';
|
|
break;
|
|
|
|
case Expr::IntegerLiteralClass: {
|
|
llvm::APSInt Value(cast<IntegerLiteral>(E)->getValue());
|
|
if (E->getType()->isSignedIntegerType())
|
|
Value.setIsSigned(true);
|
|
mangleIntegerLiteral(E->getType(), Value);
|
|
break;
|
|
}
|
|
|
|
case Expr::ImaginaryLiteralClass: {
|
|
const ImaginaryLiteral *IE = cast<ImaginaryLiteral>(E);
|
|
// Mangle as if a complex literal.
|
|
// Proposal from David Vandevoorde, 2010.06.30.
|
|
Out << 'L';
|
|
mangleType(E->getType());
|
|
if (const FloatingLiteral *Imag =
|
|
dyn_cast<FloatingLiteral>(IE->getSubExpr())) {
|
|
// Mangle a floating-point zero of the appropriate type.
|
|
mangleFloat(llvm::APFloat(Imag->getValue().getSemantics()));
|
|
Out << '_';
|
|
mangleFloat(Imag->getValue());
|
|
} else {
|
|
Out << "0_";
|
|
llvm::APSInt Value(cast<IntegerLiteral>(IE->getSubExpr())->getValue());
|
|
if (IE->getSubExpr()->getType()->isSignedIntegerType())
|
|
Value.setIsSigned(true);
|
|
mangleNumber(Value);
|
|
}
|
|
Out << 'E';
|
|
break;
|
|
}
|
|
|
|
case Expr::StringLiteralClass: {
|
|
// Revised proposal from David Vandervoorde, 2010.07.15.
|
|
Out << 'L';
|
|
assert(isa<ConstantArrayType>(E->getType()));
|
|
mangleType(E->getType());
|
|
Out << 'E';
|
|
break;
|
|
}
|
|
|
|
case Expr::GNUNullExprClass:
|
|
// FIXME: should this really be mangled the same as nullptr?
|
|
// fallthrough
|
|
|
|
case Expr::CXXNullPtrLiteralExprClass: {
|
|
Out << "LDnE";
|
|
break;
|
|
}
|
|
|
|
case Expr::PackExpansionExprClass:
|
|
Out << "sp";
|
|
mangleExpression(cast<PackExpansionExpr>(E)->getPattern());
|
|
break;
|
|
|
|
case Expr::SizeOfPackExprClass: {
|
|
auto *SPE = cast<SizeOfPackExpr>(E);
|
|
if (SPE->isPartiallySubstituted()) {
|
|
Out << "sP";
|
|
for (const auto &A : SPE->getPartialArguments())
|
|
mangleTemplateArg(A);
|
|
Out << "E";
|
|
break;
|
|
}
|
|
|
|
Out << "sZ";
|
|
const NamedDecl *Pack = SPE->getPack();
|
|
if (const TemplateTypeParmDecl *TTP = dyn_cast<TemplateTypeParmDecl>(Pack))
|
|
mangleTemplateParameter(TTP->getIndex());
|
|
else if (const NonTypeTemplateParmDecl *NTTP
|
|
= dyn_cast<NonTypeTemplateParmDecl>(Pack))
|
|
mangleTemplateParameter(NTTP->getIndex());
|
|
else if (const TemplateTemplateParmDecl *TempTP
|
|
= dyn_cast<TemplateTemplateParmDecl>(Pack))
|
|
mangleTemplateParameter(TempTP->getIndex());
|
|
else
|
|
mangleFunctionParam(cast<ParmVarDecl>(Pack));
|
|
break;
|
|
}
|
|
|
|
case Expr::MaterializeTemporaryExprClass: {
|
|
mangleExpression(cast<MaterializeTemporaryExpr>(E)->GetTemporaryExpr());
|
|
break;
|
|
}
|
|
|
|
case Expr::CXXFoldExprClass: {
|
|
auto *FE = cast<CXXFoldExpr>(E);
|
|
if (FE->isLeftFold())
|
|
Out << (FE->getInit() ? "fL" : "fl");
|
|
else
|
|
Out << (FE->getInit() ? "fR" : "fr");
|
|
|
|
if (FE->getOperator() == BO_PtrMemD)
|
|
Out << "ds";
|
|
else
|
|
mangleOperatorName(
|
|
BinaryOperator::getOverloadedOperator(FE->getOperator()),
|
|
/*Arity=*/2);
|
|
|
|
if (FE->getLHS())
|
|
mangleExpression(FE->getLHS());
|
|
if (FE->getRHS())
|
|
mangleExpression(FE->getRHS());
|
|
break;
|
|
}
|
|
|
|
case Expr::CXXThisExprClass:
|
|
Out << "fpT";
|
|
break;
|
|
|
|
case Expr::CoawaitExprClass:
|
|
// FIXME: Propose a non-vendor mangling.
|
|
Out << "v18co_await";
|
|
mangleExpression(cast<CoawaitExpr>(E)->getOperand());
|
|
break;
|
|
|
|
case Expr::CoyieldExprClass:
|
|
// FIXME: Propose a non-vendor mangling.
|
|
Out << "v18co_yield";
|
|
mangleExpression(cast<CoawaitExpr>(E)->getOperand());
|
|
break;
|
|
}
|
|
}
|
|
|
|
/// Mangle an expression which refers to a parameter variable.
|
|
///
|
|
/// <expression> ::= <function-param>
|
|
/// <function-param> ::= fp <top-level CV-qualifiers> _ # L == 0, I == 0
|
|
/// <function-param> ::= fp <top-level CV-qualifiers>
|
|
/// <parameter-2 non-negative number> _ # L == 0, I > 0
|
|
/// <function-param> ::= fL <L-1 non-negative number>
|
|
/// p <top-level CV-qualifiers> _ # L > 0, I == 0
|
|
/// <function-param> ::= fL <L-1 non-negative number>
|
|
/// p <top-level CV-qualifiers>
|
|
/// <I-1 non-negative number> _ # L > 0, I > 0
|
|
///
|
|
/// L is the nesting depth of the parameter, defined as 1 if the
|
|
/// parameter comes from the innermost function prototype scope
|
|
/// enclosing the current context, 2 if from the next enclosing
|
|
/// function prototype scope, and so on, with one special case: if
|
|
/// we've processed the full parameter clause for the innermost
|
|
/// function type, then L is one less. This definition conveniently
|
|
/// makes it irrelevant whether a function's result type was written
|
|
/// trailing or leading, but is otherwise overly complicated; the
|
|
/// numbering was first designed without considering references to
|
|
/// parameter in locations other than return types, and then the
|
|
/// mangling had to be generalized without changing the existing
|
|
/// manglings.
|
|
///
|
|
/// I is the zero-based index of the parameter within its parameter
|
|
/// declaration clause. Note that the original ABI document describes
|
|
/// this using 1-based ordinals.
|
|
void CXXNameMangler::mangleFunctionParam(const ParmVarDecl *parm) {
|
|
unsigned parmDepth = parm->getFunctionScopeDepth();
|
|
unsigned parmIndex = parm->getFunctionScopeIndex();
|
|
|
|
// Compute 'L'.
|
|
// parmDepth does not include the declaring function prototype.
|
|
// FunctionTypeDepth does account for that.
|
|
assert(parmDepth < FunctionTypeDepth.getDepth());
|
|
unsigned nestingDepth = FunctionTypeDepth.getDepth() - parmDepth;
|
|
if (FunctionTypeDepth.isInResultType())
|
|
nestingDepth--;
|
|
|
|
if (nestingDepth == 0) {
|
|
Out << "fp";
|
|
} else {
|
|
Out << "fL" << (nestingDepth - 1) << 'p';
|
|
}
|
|
|
|
// Top-level qualifiers. We don't have to worry about arrays here,
|
|
// because parameters declared as arrays should already have been
|
|
// transformed to have pointer type. FIXME: apparently these don't
|
|
// get mangled if used as an rvalue of a known non-class type?
|
|
assert(!parm->getType()->isArrayType()
|
|
&& "parameter's type is still an array type?");
|
|
mangleQualifiers(parm->getType().getQualifiers());
|
|
|
|
// Parameter index.
|
|
if (parmIndex != 0) {
|
|
Out << (parmIndex - 1);
|
|
}
|
|
Out << '_';
|
|
}
|
|
|
|
void CXXNameMangler::mangleCXXCtorType(CXXCtorType T,
|
|
const CXXRecordDecl *InheritedFrom) {
|
|
// <ctor-dtor-name> ::= C1 # complete object constructor
|
|
// ::= C2 # base object constructor
|
|
// ::= CI1 <type> # complete inheriting constructor
|
|
// ::= CI2 <type> # base inheriting constructor
|
|
//
|
|
// In addition, C5 is a comdat name with C1 and C2 in it.
|
|
Out << 'C';
|
|
if (InheritedFrom)
|
|
Out << 'I';
|
|
switch (T) {
|
|
case Ctor_Complete:
|
|
Out << '1';
|
|
break;
|
|
case Ctor_Base:
|
|
Out << '2';
|
|
break;
|
|
case Ctor_Comdat:
|
|
Out << '5';
|
|
break;
|
|
case Ctor_DefaultClosure:
|
|
case Ctor_CopyingClosure:
|
|
llvm_unreachable("closure constructors don't exist for the Itanium ABI!");
|
|
}
|
|
if (InheritedFrom)
|
|
mangleName(InheritedFrom);
|
|
}
|
|
|
|
void CXXNameMangler::mangleCXXDtorType(CXXDtorType T) {
|
|
// <ctor-dtor-name> ::= D0 # deleting destructor
|
|
// ::= D1 # complete object destructor
|
|
// ::= D2 # base object destructor
|
|
//
|
|
// In addition, D5 is a comdat name with D1, D2 and, if virtual, D0 in it.
|
|
switch (T) {
|
|
case Dtor_Deleting:
|
|
Out << "D0";
|
|
break;
|
|
case Dtor_Complete:
|
|
Out << "D1";
|
|
break;
|
|
case Dtor_Base:
|
|
Out << "D2";
|
|
break;
|
|
case Dtor_Comdat:
|
|
Out << "D5";
|
|
break;
|
|
}
|
|
}
|
|
|
|
void CXXNameMangler::mangleTemplateArgs(const TemplateArgumentLoc *TemplateArgs,
|
|
unsigned NumTemplateArgs) {
|
|
// <template-args> ::= I <template-arg>+ E
|
|
Out << 'I';
|
|
for (unsigned i = 0; i != NumTemplateArgs; ++i)
|
|
mangleTemplateArg(TemplateArgs[i].getArgument());
|
|
Out << 'E';
|
|
}
|
|
|
|
void CXXNameMangler::mangleTemplateArgs(const TemplateArgumentList &AL) {
|
|
// <template-args> ::= I <template-arg>+ E
|
|
Out << 'I';
|
|
for (unsigned i = 0, e = AL.size(); i != e; ++i)
|
|
mangleTemplateArg(AL[i]);
|
|
Out << 'E';
|
|
}
|
|
|
|
void CXXNameMangler::mangleTemplateArgs(const TemplateArgument *TemplateArgs,
|
|
unsigned NumTemplateArgs) {
|
|
// <template-args> ::= I <template-arg>+ E
|
|
Out << 'I';
|
|
for (unsigned i = 0; i != NumTemplateArgs; ++i)
|
|
mangleTemplateArg(TemplateArgs[i]);
|
|
Out << 'E';
|
|
}
|
|
|
|
void CXXNameMangler::mangleTemplateArg(TemplateArgument A) {
|
|
// <template-arg> ::= <type> # type or template
|
|
// ::= X <expression> E # expression
|
|
// ::= <expr-primary> # simple expressions
|
|
// ::= J <template-arg>* E # argument pack
|
|
if (!A.isInstantiationDependent() || A.isDependent())
|
|
A = Context.getASTContext().getCanonicalTemplateArgument(A);
|
|
|
|
switch (A.getKind()) {
|
|
case TemplateArgument::Null:
|
|
llvm_unreachable("Cannot mangle NULL template argument");
|
|
|
|
case TemplateArgument::Type:
|
|
mangleType(A.getAsType());
|
|
break;
|
|
case TemplateArgument::Template:
|
|
// This is mangled as <type>.
|
|
mangleType(A.getAsTemplate());
|
|
break;
|
|
case TemplateArgument::TemplateExpansion:
|
|
// <type> ::= Dp <type> # pack expansion (C++0x)
|
|
Out << "Dp";
|
|
mangleType(A.getAsTemplateOrTemplatePattern());
|
|
break;
|
|
case TemplateArgument::Expression: {
|
|
// It's possible to end up with a DeclRefExpr here in certain
|
|
// dependent cases, in which case we should mangle as a
|
|
// declaration.
|
|
const Expr *E = A.getAsExpr()->IgnoreParens();
|
|
if (const DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(E)) {
|
|
const ValueDecl *D = DRE->getDecl();
|
|
if (isa<VarDecl>(D) || isa<FunctionDecl>(D)) {
|
|
Out << 'L';
|
|
mangle(D);
|
|
Out << 'E';
|
|
break;
|
|
}
|
|
}
|
|
|
|
Out << 'X';
|
|
mangleExpression(E);
|
|
Out << 'E';
|
|
break;
|
|
}
|
|
case TemplateArgument::Integral:
|
|
mangleIntegerLiteral(A.getIntegralType(), A.getAsIntegral());
|
|
break;
|
|
case TemplateArgument::Declaration: {
|
|
// <expr-primary> ::= L <mangled-name> E # external name
|
|
// Clang produces AST's where pointer-to-member-function expressions
|
|
// and pointer-to-function expressions are represented as a declaration not
|
|
// an expression. We compensate for it here to produce the correct mangling.
|
|
ValueDecl *D = A.getAsDecl();
|
|
bool compensateMangling = !A.getParamTypeForDecl()->isReferenceType();
|
|
if (compensateMangling) {
|
|
Out << 'X';
|
|
mangleOperatorName(OO_Amp, 1);
|
|
}
|
|
|
|
Out << 'L';
|
|
// References to external entities use the mangled name; if the name would
|
|
// not normally be mangled then mangle it as unqualified.
|
|
mangle(D);
|
|
Out << 'E';
|
|
|
|
if (compensateMangling)
|
|
Out << 'E';
|
|
|
|
break;
|
|
}
|
|
case TemplateArgument::NullPtr: {
|
|
// <expr-primary> ::= L <type> 0 E
|
|
Out << 'L';
|
|
mangleType(A.getNullPtrType());
|
|
Out << "0E";
|
|
break;
|
|
}
|
|
case TemplateArgument::Pack: {
|
|
// <template-arg> ::= J <template-arg>* E
|
|
Out << 'J';
|
|
for (const auto &P : A.pack_elements())
|
|
mangleTemplateArg(P);
|
|
Out << 'E';
|
|
}
|
|
}
|
|
}
|
|
|
|
void CXXNameMangler::mangleTemplateParameter(unsigned Index) {
|
|
// <template-param> ::= T_ # first template parameter
|
|
// ::= T <parameter-2 non-negative number> _
|
|
if (Index == 0)
|
|
Out << "T_";
|
|
else
|
|
Out << 'T' << (Index - 1) << '_';
|
|
}
|
|
|
|
void CXXNameMangler::mangleSeqID(unsigned SeqID) {
|
|
if (SeqID == 1)
|
|
Out << '0';
|
|
else if (SeqID > 1) {
|
|
SeqID--;
|
|
|
|
// <seq-id> is encoded in base-36, using digits and upper case letters.
|
|
char Buffer[7]; // log(2**32) / log(36) ~= 7
|
|
MutableArrayRef<char> BufferRef(Buffer);
|
|
MutableArrayRef<char>::reverse_iterator I = BufferRef.rbegin();
|
|
|
|
for (; SeqID != 0; SeqID /= 36) {
|
|
unsigned C = SeqID % 36;
|
|
*I++ = (C < 10 ? '0' + C : 'A' + C - 10);
|
|
}
|
|
|
|
Out.write(I.base(), I - BufferRef.rbegin());
|
|
}
|
|
Out << '_';
|
|
}
|
|
|
|
void CXXNameMangler::mangleExistingSubstitution(TemplateName tname) {
|
|
bool result = mangleSubstitution(tname);
|
|
assert(result && "no existing substitution for template name");
|
|
(void) result;
|
|
}
|
|
|
|
// <substitution> ::= S <seq-id> _
|
|
// ::= S_
|
|
bool CXXNameMangler::mangleSubstitution(const NamedDecl *ND) {
|
|
// Try one of the standard substitutions first.
|
|
if (mangleStandardSubstitution(ND))
|
|
return true;
|
|
|
|
ND = cast<NamedDecl>(ND->getCanonicalDecl());
|
|
return mangleSubstitution(reinterpret_cast<uintptr_t>(ND));
|
|
}
|
|
|
|
/// Determine whether the given type has any qualifiers that are relevant for
|
|
/// substitutions.
|
|
static bool hasMangledSubstitutionQualifiers(QualType T) {
|
|
Qualifiers Qs = T.getQualifiers();
|
|
return Qs.getCVRQualifiers() || Qs.hasAddressSpace();
|
|
}
|
|
|
|
bool CXXNameMangler::mangleSubstitution(QualType T) {
|
|
if (!hasMangledSubstitutionQualifiers(T)) {
|
|
if (const RecordType *RT = T->getAs<RecordType>())
|
|
return mangleSubstitution(RT->getDecl());
|
|
}
|
|
|
|
uintptr_t TypePtr = reinterpret_cast<uintptr_t>(T.getAsOpaquePtr());
|
|
|
|
return mangleSubstitution(TypePtr);
|
|
}
|
|
|
|
bool CXXNameMangler::mangleSubstitution(TemplateName Template) {
|
|
if (TemplateDecl *TD = Template.getAsTemplateDecl())
|
|
return mangleSubstitution(TD);
|
|
|
|
Template = Context.getASTContext().getCanonicalTemplateName(Template);
|
|
return mangleSubstitution(
|
|
reinterpret_cast<uintptr_t>(Template.getAsVoidPointer()));
|
|
}
|
|
|
|
bool CXXNameMangler::mangleSubstitution(uintptr_t Ptr) {
|
|
llvm::DenseMap<uintptr_t, unsigned>::iterator I = Substitutions.find(Ptr);
|
|
if (I == Substitutions.end())
|
|
return false;
|
|
|
|
unsigned SeqID = I->second;
|
|
Out << 'S';
|
|
mangleSeqID(SeqID);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool isCharType(QualType T) {
|
|
if (T.isNull())
|
|
return false;
|
|
|
|
return T->isSpecificBuiltinType(BuiltinType::Char_S) ||
|
|
T->isSpecificBuiltinType(BuiltinType::Char_U);
|
|
}
|
|
|
|
/// Returns whether a given type is a template specialization of a given name
|
|
/// with a single argument of type char.
|
|
static bool isCharSpecialization(QualType T, const char *Name) {
|
|
if (T.isNull())
|
|
return false;
|
|
|
|
const RecordType *RT = T->getAs<RecordType>();
|
|
if (!RT)
|
|
return false;
|
|
|
|
const ClassTemplateSpecializationDecl *SD =
|
|
dyn_cast<ClassTemplateSpecializationDecl>(RT->getDecl());
|
|
if (!SD)
|
|
return false;
|
|
|
|
if (!isStdNamespace(getEffectiveDeclContext(SD)))
|
|
return false;
|
|
|
|
const TemplateArgumentList &TemplateArgs = SD->getTemplateArgs();
|
|
if (TemplateArgs.size() != 1)
|
|
return false;
|
|
|
|
if (!isCharType(TemplateArgs[0].getAsType()))
|
|
return false;
|
|
|
|
return SD->getIdentifier()->getName() == Name;
|
|
}
|
|
|
|
template <std::size_t StrLen>
|
|
static bool isStreamCharSpecialization(const ClassTemplateSpecializationDecl*SD,
|
|
const char (&Str)[StrLen]) {
|
|
if (!SD->getIdentifier()->isStr(Str))
|
|
return false;
|
|
|
|
const TemplateArgumentList &TemplateArgs = SD->getTemplateArgs();
|
|
if (TemplateArgs.size() != 2)
|
|
return false;
|
|
|
|
if (!isCharType(TemplateArgs[0].getAsType()))
|
|
return false;
|
|
|
|
if (!isCharSpecialization(TemplateArgs[1].getAsType(), "char_traits"))
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
bool CXXNameMangler::mangleStandardSubstitution(const NamedDecl *ND) {
|
|
// <substitution> ::= St # ::std::
|
|
if (const NamespaceDecl *NS = dyn_cast<NamespaceDecl>(ND)) {
|
|
if (isStd(NS)) {
|
|
Out << "St";
|
|
return true;
|
|
}
|
|
}
|
|
|
|
if (const ClassTemplateDecl *TD = dyn_cast<ClassTemplateDecl>(ND)) {
|
|
if (!isStdNamespace(getEffectiveDeclContext(TD)))
|
|
return false;
|
|
|
|
// <substitution> ::= Sa # ::std::allocator
|
|
if (TD->getIdentifier()->isStr("allocator")) {
|
|
Out << "Sa";
|
|
return true;
|
|
}
|
|
|
|
// <<substitution> ::= Sb # ::std::basic_string
|
|
if (TD->getIdentifier()->isStr("basic_string")) {
|
|
Out << "Sb";
|
|
return true;
|
|
}
|
|
}
|
|
|
|
if (const ClassTemplateSpecializationDecl *SD =
|
|
dyn_cast<ClassTemplateSpecializationDecl>(ND)) {
|
|
if (!isStdNamespace(getEffectiveDeclContext(SD)))
|
|
return false;
|
|
|
|
// <substitution> ::= Ss # ::std::basic_string<char,
|
|
// ::std::char_traits<char>,
|
|
// ::std::allocator<char> >
|
|
if (SD->getIdentifier()->isStr("basic_string")) {
|
|
const TemplateArgumentList &TemplateArgs = SD->getTemplateArgs();
|
|
|
|
if (TemplateArgs.size() != 3)
|
|
return false;
|
|
|
|
if (!isCharType(TemplateArgs[0].getAsType()))
|
|
return false;
|
|
|
|
if (!isCharSpecialization(TemplateArgs[1].getAsType(), "char_traits"))
|
|
return false;
|
|
|
|
if (!isCharSpecialization(TemplateArgs[2].getAsType(), "allocator"))
|
|
return false;
|
|
|
|
Out << "Ss";
|
|
return true;
|
|
}
|
|
|
|
// <substitution> ::= Si # ::std::basic_istream<char,
|
|
// ::std::char_traits<char> >
|
|
if (isStreamCharSpecialization(SD, "basic_istream")) {
|
|
Out << "Si";
|
|
return true;
|
|
}
|
|
|
|
// <substitution> ::= So # ::std::basic_ostream<char,
|
|
// ::std::char_traits<char> >
|
|
if (isStreamCharSpecialization(SD, "basic_ostream")) {
|
|
Out << "So";
|
|
return true;
|
|
}
|
|
|
|
// <substitution> ::= Sd # ::std::basic_iostream<char,
|
|
// ::std::char_traits<char> >
|
|
if (isStreamCharSpecialization(SD, "basic_iostream")) {
|
|
Out << "Sd";
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void CXXNameMangler::addSubstitution(QualType T) {
|
|
if (!hasMangledSubstitutionQualifiers(T)) {
|
|
if (const RecordType *RT = T->getAs<RecordType>()) {
|
|
addSubstitution(RT->getDecl());
|
|
return;
|
|
}
|
|
}
|
|
|
|
uintptr_t TypePtr = reinterpret_cast<uintptr_t>(T.getAsOpaquePtr());
|
|
addSubstitution(TypePtr);
|
|
}
|
|
|
|
void CXXNameMangler::addSubstitution(TemplateName Template) {
|
|
if (TemplateDecl *TD = Template.getAsTemplateDecl())
|
|
return addSubstitution(TD);
|
|
|
|
Template = Context.getASTContext().getCanonicalTemplateName(Template);
|
|
addSubstitution(reinterpret_cast<uintptr_t>(Template.getAsVoidPointer()));
|
|
}
|
|
|
|
void CXXNameMangler::addSubstitution(uintptr_t Ptr) {
|
|
assert(!Substitutions.count(Ptr) && "Substitution already exists!");
|
|
Substitutions[Ptr] = SeqID++;
|
|
}
|
|
|
|
void CXXNameMangler::extendSubstitutions(CXXNameMangler* Other) {
|
|
assert(Other->SeqID >= SeqID && "Must be superset of substitutions!");
|
|
if (Other->SeqID > SeqID) {
|
|
Substitutions.swap(Other->Substitutions);
|
|
SeqID = Other->SeqID;
|
|
}
|
|
}
|
|
|
|
CXXNameMangler::AbiTagList
|
|
CXXNameMangler::makeFunctionReturnTypeTags(const FunctionDecl *FD) {
|
|
// When derived abi tags are disabled there is no need to make any list.
|
|
if (DisableDerivedAbiTags)
|
|
return AbiTagList();
|
|
|
|
llvm::raw_null_ostream NullOutStream;
|
|
CXXNameMangler TrackReturnTypeTags(*this, NullOutStream);
|
|
TrackReturnTypeTags.disableDerivedAbiTags();
|
|
|
|
const FunctionProtoType *Proto =
|
|
cast<FunctionProtoType>(FD->getType()->getAs<FunctionType>());
|
|
TrackReturnTypeTags.FunctionTypeDepth.enterResultType();
|
|
TrackReturnTypeTags.mangleType(Proto->getReturnType());
|
|
TrackReturnTypeTags.FunctionTypeDepth.leaveResultType();
|
|
|
|
return TrackReturnTypeTags.AbiTagsRoot.getSortedUniqueUsedAbiTags();
|
|
}
|
|
|
|
CXXNameMangler::AbiTagList
|
|
CXXNameMangler::makeVariableTypeTags(const VarDecl *VD) {
|
|
// When derived abi tags are disabled there is no need to make any list.
|
|
if (DisableDerivedAbiTags)
|
|
return AbiTagList();
|
|
|
|
llvm::raw_null_ostream NullOutStream;
|
|
CXXNameMangler TrackVariableType(*this, NullOutStream);
|
|
TrackVariableType.disableDerivedAbiTags();
|
|
|
|
TrackVariableType.mangleType(VD->getType());
|
|
|
|
return TrackVariableType.AbiTagsRoot.getSortedUniqueUsedAbiTags();
|
|
}
|
|
|
|
bool CXXNameMangler::shouldHaveAbiTags(ItaniumMangleContextImpl &C,
|
|
const VarDecl *VD) {
|
|
llvm::raw_null_ostream NullOutStream;
|
|
CXXNameMangler TrackAbiTags(C, NullOutStream, nullptr, true);
|
|
TrackAbiTags.mangle(VD);
|
|
return TrackAbiTags.AbiTagsRoot.getUsedAbiTags().size();
|
|
}
|
|
|
|
//
|
|
|
|
/// Mangles the name of the declaration D and emits that name to the given
|
|
/// output stream.
|
|
///
|
|
/// If the declaration D requires a mangled name, this routine will emit that
|
|
/// mangled name to \p os and return true. Otherwise, \p os will be unchanged
|
|
/// and this routine will return false. In this case, the caller should just
|
|
/// emit the identifier of the declaration (\c D->getIdentifier()) as its
|
|
/// name.
|
|
void ItaniumMangleContextImpl::mangleCXXName(const NamedDecl *D,
|
|
raw_ostream &Out) {
|
|
assert((isa<FunctionDecl>(D) || isa<VarDecl>(D)) &&
|
|
"Invalid mangleName() call, argument is not a variable or function!");
|
|
assert(!isa<CXXConstructorDecl>(D) && !isa<CXXDestructorDecl>(D) &&
|
|
"Invalid mangleName() call on 'structor decl!");
|
|
|
|
PrettyStackTraceDecl CrashInfo(D, SourceLocation(),
|
|
getASTContext().getSourceManager(),
|
|
"Mangling declaration");
|
|
|
|
CXXNameMangler Mangler(*this, Out, D);
|
|
Mangler.mangle(D);
|
|
}
|
|
|
|
void ItaniumMangleContextImpl::mangleCXXCtor(const CXXConstructorDecl *D,
|
|
CXXCtorType Type,
|
|
raw_ostream &Out) {
|
|
CXXNameMangler Mangler(*this, Out, D, Type);
|
|
Mangler.mangle(D);
|
|
}
|
|
|
|
void ItaniumMangleContextImpl::mangleCXXDtor(const CXXDestructorDecl *D,
|
|
CXXDtorType Type,
|
|
raw_ostream &Out) {
|
|
CXXNameMangler Mangler(*this, Out, D, Type);
|
|
Mangler.mangle(D);
|
|
}
|
|
|
|
void ItaniumMangleContextImpl::mangleCXXCtorComdat(const CXXConstructorDecl *D,
|
|
raw_ostream &Out) {
|
|
CXXNameMangler Mangler(*this, Out, D, Ctor_Comdat);
|
|
Mangler.mangle(D);
|
|
}
|
|
|
|
void ItaniumMangleContextImpl::mangleCXXDtorComdat(const CXXDestructorDecl *D,
|
|
raw_ostream &Out) {
|
|
CXXNameMangler Mangler(*this, Out, D, Dtor_Comdat);
|
|
Mangler.mangle(D);
|
|
}
|
|
|
|
void ItaniumMangleContextImpl::mangleThunk(const CXXMethodDecl *MD,
|
|
const ThunkInfo &Thunk,
|
|
raw_ostream &Out) {
|
|
// <special-name> ::= T <call-offset> <base encoding>
|
|
// # base is the nominal target function of thunk
|
|
// <special-name> ::= Tc <call-offset> <call-offset> <base encoding>
|
|
// # base is the nominal target function of thunk
|
|
// # first call-offset is 'this' adjustment
|
|
// # second call-offset is result adjustment
|
|
|
|
assert(!isa<CXXDestructorDecl>(MD) &&
|
|
"Use mangleCXXDtor for destructor decls!");
|
|
CXXNameMangler Mangler(*this, Out);
|
|
Mangler.getStream() << "_ZT";
|
|
if (!Thunk.Return.isEmpty())
|
|
Mangler.getStream() << 'c';
|
|
|
|
// Mangle the 'this' pointer adjustment.
|
|
Mangler.mangleCallOffset(Thunk.This.NonVirtual,
|
|
Thunk.This.Virtual.Itanium.VCallOffsetOffset);
|
|
|
|
// Mangle the return pointer adjustment if there is one.
|
|
if (!Thunk.Return.isEmpty())
|
|
Mangler.mangleCallOffset(Thunk.Return.NonVirtual,
|
|
Thunk.Return.Virtual.Itanium.VBaseOffsetOffset);
|
|
|
|
Mangler.mangleFunctionEncoding(MD);
|
|
}
|
|
|
|
void ItaniumMangleContextImpl::mangleCXXDtorThunk(
|
|
const CXXDestructorDecl *DD, CXXDtorType Type,
|
|
const ThisAdjustment &ThisAdjustment, raw_ostream &Out) {
|
|
// <special-name> ::= T <call-offset> <base encoding>
|
|
// # base is the nominal target function of thunk
|
|
CXXNameMangler Mangler(*this, Out, DD, Type);
|
|
Mangler.getStream() << "_ZT";
|
|
|
|
// Mangle the 'this' pointer adjustment.
|
|
Mangler.mangleCallOffset(ThisAdjustment.NonVirtual,
|
|
ThisAdjustment.Virtual.Itanium.VCallOffsetOffset);
|
|
|
|
Mangler.mangleFunctionEncoding(DD);
|
|
}
|
|
|
|
/// Returns the mangled name for a guard variable for the passed in VarDecl.
|
|
void ItaniumMangleContextImpl::mangleStaticGuardVariable(const VarDecl *D,
|
|
raw_ostream &Out) {
|
|
// <special-name> ::= GV <object name> # Guard variable for one-time
|
|
// # initialization
|
|
CXXNameMangler Mangler(*this, Out);
|
|
// GCC 5.3.0 doesn't emit derived ABI tags for local names but that seems to
|
|
// be a bug that is fixed in trunk.
|
|
Mangler.getStream() << "_ZGV";
|
|
Mangler.mangleName(D);
|
|
}
|
|
|
|
void ItaniumMangleContextImpl::mangleDynamicInitializer(const VarDecl *MD,
|
|
raw_ostream &Out) {
|
|
// These symbols are internal in the Itanium ABI, so the names don't matter.
|
|
// Clang has traditionally used this symbol and allowed LLVM to adjust it to
|
|
// avoid duplicate symbols.
|
|
Out << "__cxx_global_var_init";
|
|
}
|
|
|
|
void ItaniumMangleContextImpl::mangleDynamicAtExitDestructor(const VarDecl *D,
|
|
raw_ostream &Out) {
|
|
// Prefix the mangling of D with __dtor_.
|
|
CXXNameMangler Mangler(*this, Out);
|
|
Mangler.getStream() << "__dtor_";
|
|
if (shouldMangleDeclName(D))
|
|
Mangler.mangle(D);
|
|
else
|
|
Mangler.getStream() << D->getName();
|
|
}
|
|
|
|
void ItaniumMangleContextImpl::mangleSEHFilterExpression(
|
|
const NamedDecl *EnclosingDecl, raw_ostream &Out) {
|
|
CXXNameMangler Mangler(*this, Out);
|
|
Mangler.getStream() << "__filt_";
|
|
if (shouldMangleDeclName(EnclosingDecl))
|
|
Mangler.mangle(EnclosingDecl);
|
|
else
|
|
Mangler.getStream() << EnclosingDecl->getName();
|
|
}
|
|
|
|
void ItaniumMangleContextImpl::mangleSEHFinallyBlock(
|
|
const NamedDecl *EnclosingDecl, raw_ostream &Out) {
|
|
CXXNameMangler Mangler(*this, Out);
|
|
Mangler.getStream() << "__fin_";
|
|
if (shouldMangleDeclName(EnclosingDecl))
|
|
Mangler.mangle(EnclosingDecl);
|
|
else
|
|
Mangler.getStream() << EnclosingDecl->getName();
|
|
}
|
|
|
|
void ItaniumMangleContextImpl::mangleItaniumThreadLocalInit(const VarDecl *D,
|
|
raw_ostream &Out) {
|
|
// <special-name> ::= TH <object name>
|
|
CXXNameMangler Mangler(*this, Out);
|
|
Mangler.getStream() << "_ZTH";
|
|
Mangler.mangleName(D);
|
|
}
|
|
|
|
void
|
|
ItaniumMangleContextImpl::mangleItaniumThreadLocalWrapper(const VarDecl *D,
|
|
raw_ostream &Out) {
|
|
// <special-name> ::= TW <object name>
|
|
CXXNameMangler Mangler(*this, Out);
|
|
Mangler.getStream() << "_ZTW";
|
|
Mangler.mangleName(D);
|
|
}
|
|
|
|
void ItaniumMangleContextImpl::mangleReferenceTemporary(const VarDecl *D,
|
|
unsigned ManglingNumber,
|
|
raw_ostream &Out) {
|
|
// We match the GCC mangling here.
|
|
// <special-name> ::= GR <object name>
|
|
CXXNameMangler Mangler(*this, Out);
|
|
Mangler.getStream() << "_ZGR";
|
|
Mangler.mangleName(D);
|
|
assert(ManglingNumber > 0 && "Reference temporary mangling number is zero!");
|
|
Mangler.mangleSeqID(ManglingNumber - 1);
|
|
}
|
|
|
|
void ItaniumMangleContextImpl::mangleCXXVTable(const CXXRecordDecl *RD,
|
|
raw_ostream &Out) {
|
|
// <special-name> ::= TV <type> # virtual table
|
|
CXXNameMangler Mangler(*this, Out);
|
|
Mangler.getStream() << "_ZTV";
|
|
Mangler.mangleNameOrStandardSubstitution(RD);
|
|
}
|
|
|
|
void ItaniumMangleContextImpl::mangleCXXVTT(const CXXRecordDecl *RD,
|
|
raw_ostream &Out) {
|
|
// <special-name> ::= TT <type> # VTT structure
|
|
CXXNameMangler Mangler(*this, Out);
|
|
Mangler.getStream() << "_ZTT";
|
|
Mangler.mangleNameOrStandardSubstitution(RD);
|
|
}
|
|
|
|
void ItaniumMangleContextImpl::mangleCXXCtorVTable(const CXXRecordDecl *RD,
|
|
int64_t Offset,
|
|
const CXXRecordDecl *Type,
|
|
raw_ostream &Out) {
|
|
// <special-name> ::= TC <type> <offset number> _ <base type>
|
|
CXXNameMangler Mangler(*this, Out);
|
|
Mangler.getStream() << "_ZTC";
|
|
Mangler.mangleNameOrStandardSubstitution(RD);
|
|
Mangler.getStream() << Offset;
|
|
Mangler.getStream() << '_';
|
|
Mangler.mangleNameOrStandardSubstitution(Type);
|
|
}
|
|
|
|
void ItaniumMangleContextImpl::mangleCXXRTTI(QualType Ty, raw_ostream &Out) {
|
|
// <special-name> ::= TI <type> # typeinfo structure
|
|
assert(!Ty.hasQualifiers() && "RTTI info cannot have top-level qualifiers");
|
|
CXXNameMangler Mangler(*this, Out);
|
|
Mangler.getStream() << "_ZTI";
|
|
Mangler.mangleType(Ty);
|
|
}
|
|
|
|
void ItaniumMangleContextImpl::mangleCXXRTTIName(QualType Ty,
|
|
raw_ostream &Out) {
|
|
// <special-name> ::= TS <type> # typeinfo name (null terminated byte string)
|
|
CXXNameMangler Mangler(*this, Out);
|
|
Mangler.getStream() << "_ZTS";
|
|
Mangler.mangleType(Ty);
|
|
}
|
|
|
|
void ItaniumMangleContextImpl::mangleTypeName(QualType Ty, raw_ostream &Out) {
|
|
mangleCXXRTTIName(Ty, Out);
|
|
}
|
|
|
|
void ItaniumMangleContextImpl::mangleStringLiteral(const StringLiteral *, raw_ostream &) {
|
|
llvm_unreachable("Can't mangle string literals");
|
|
}
|
|
|
|
ItaniumMangleContext *
|
|
ItaniumMangleContext::create(ASTContext &Context, DiagnosticsEngine &Diags) {
|
|
return new ItaniumMangleContextImpl(Context, Diags);
|
|
}
|