diff options
Diffstat (limited to 'clang/lib/CodeGen')
-rw-r--r-- | clang/lib/CodeGen/CGBlocks.cpp | 2 | ||||
-rw-r--r-- | clang/lib/CodeGen/CGCXX.cpp | 2 | ||||
-rw-r--r-- | clang/lib/CodeGen/CGCXX.h | 36 | ||||
-rw-r--r-- | clang/lib/CodeGen/CGCXXABI.h | 10 | ||||
-rw-r--r-- | clang/lib/CodeGen/CGDecl.cpp | 2 | ||||
-rw-r--r-- | clang/lib/CodeGen/CGObjC.cpp | 2 | ||||
-rw-r--r-- | clang/lib/CodeGen/CGVTables.h | 89 | ||||
-rw-r--r-- | clang/lib/CodeGen/CMakeLists.txt | 1 | ||||
-rw-r--r-- | clang/lib/CodeGen/CodeGenFunction.h | 2 | ||||
-rw-r--r-- | clang/lib/CodeGen/CodeGenModule.cpp | 20 | ||||
-rw-r--r-- | clang/lib/CodeGen/CodeGenModule.h | 9 | ||||
-rw-r--r-- | clang/lib/CodeGen/CodeGenTBAA.cpp | 2 | ||||
-rw-r--r-- | clang/lib/CodeGen/CodeGenTBAA.h | 2 | ||||
-rw-r--r-- | clang/lib/CodeGen/GlobalDecl.h | 2 | ||||
-rw-r--r-- | clang/lib/CodeGen/ItaniumCXXABI.cpp | 10 | ||||
-rw-r--r-- | clang/lib/CodeGen/Mangle.cpp | 2615 | ||||
-rw-r--r-- | clang/lib/CodeGen/Mangle.h | 179 | ||||
-rw-r--r-- | clang/lib/CodeGen/MicrosoftCXXABI.cpp | 1158 |
18 files changed, 39 insertions, 4104 deletions
diff --git a/clang/lib/CodeGen/CGBlocks.cpp b/clang/lib/CodeGen/CGBlocks.cpp index 36767711b48..daa9052fdac 100644 --- a/clang/lib/CodeGen/CGBlocks.cpp +++ b/clang/lib/CodeGen/CGBlocks.cpp @@ -799,7 +799,7 @@ CodeGenFunction::GenerateBlockFunction(GlobalDecl GD, const BlockExpr *BExpr, const llvm::FunctionType *LTy = Types.GetFunctionType(FI, IsVariadic); MangleBuffer Name; - CGM.getMangledName(GD, Name, BD); + CGM.getBlockMangledName(GD, Name, BD); llvm::Function *Fn = llvm::Function::Create(LTy, llvm::GlobalValue::InternalLinkage, Name.getString(), &CGM.getModule()); diff --git a/clang/lib/CodeGen/CGCXX.cpp b/clang/lib/CodeGen/CGCXX.cpp index b734e62205c..bb217fbcc9d 100644 --- a/clang/lib/CodeGen/CGCXX.cpp +++ b/clang/lib/CodeGen/CGCXX.cpp @@ -16,12 +16,12 @@ #include "CGCXXABI.h" #include "CodeGenFunction.h" #include "CodeGenModule.h" -#include "Mangle.h" #include "clang/AST/ASTContext.h" #include "clang/AST/RecordLayout.h" #include "clang/AST/Decl.h" #include "clang/AST/DeclCXX.h" #include "clang/AST/DeclObjC.h" +#include "clang/AST/Mangle.h" #include "clang/AST/StmtCXX.h" #include "clang/Frontend/CodeGenOptions.h" #include "llvm/ADT/StringExtras.h" diff --git a/clang/lib/CodeGen/CGCXX.h b/clang/lib/CodeGen/CGCXX.h deleted file mode 100644 index 1e6adb05a0d..00000000000 --- a/clang/lib/CodeGen/CGCXX.h +++ /dev/null @@ -1,36 +0,0 @@ -//===----- CGCXX.h - C++ related code CodeGen declarations ------*- C++ -*-===// -// -// The LLVM Compiler Infrastructure -// -// This file is distributed under the University of Illinois Open Source -// License. See LICENSE.TXT for details. -// -//===----------------------------------------------------------------------===// -// -// These classes wrap the information about a call or function -// definition used to handle ABI compliancy. -// -//===----------------------------------------------------------------------===// - -#ifndef CLANG_CODEGEN_CGCXX_H -#define CLANG_CODEGEN_CGCXX_H - -namespace clang { - -/// CXXCtorType - C++ constructor types -enum CXXCtorType { - Ctor_Complete, // Complete object ctor - Ctor_Base, // Base object ctor - Ctor_CompleteAllocating // Complete object allocating ctor -}; - -/// CXXDtorType - C++ destructor types -enum CXXDtorType { - Dtor_Deleting, // Deleting dtor - Dtor_Complete, // Complete object dtor - Dtor_Base // Base object dtor -}; - -} // end namespace clang - -#endif // CLANG_CODEGEN_CGCXX_H diff --git a/clang/lib/CodeGen/CGCXXABI.h b/clang/lib/CodeGen/CGCXXABI.h index 56c4ea98ae4..8bc1385d7f8 100644 --- a/clang/lib/CodeGen/CGCXXABI.h +++ b/clang/lib/CodeGen/CGCXXABI.h @@ -32,18 +32,20 @@ namespace clang { class CXXMethodDecl; class CXXRecordDecl; class FieldDecl; + class MangleContext; namespace CodeGen { class CodeGenFunction; class CodeGenModule; - class MangleContext; /// Implements C++ ABI-specific code generation functions. class CGCXXABI { protected: CodeGenModule &CGM; + llvm::OwningPtr<MangleContext> MangleCtx; - CGCXXABI(CodeGenModule &CGM) : CGM(CGM) {} + CGCXXABI(CodeGenModule &CGM) + : CGM(CGM), MangleCtx(CGM.getContext().createMangleContext()) {} protected: ImplicitParamDecl *&getThisDecl(CodeGenFunction &CGF) { @@ -74,7 +76,9 @@ public: virtual ~CGCXXABI(); /// Gets the mangle context. - virtual MangleContext &getMangleContext() = 0; + MangleContext &getMangleContext() { + return *MangleCtx; + } /// Find the LLVM type used to represent the given member pointer /// type. diff --git a/clang/lib/CodeGen/CGDecl.cpp b/clang/lib/CodeGen/CGDecl.cpp index 77984b11cca..16a3a196bbb 100644 --- a/clang/lib/CodeGen/CGDecl.cpp +++ b/clang/lib/CodeGen/CGDecl.cpp @@ -148,7 +148,7 @@ static std::string GetStaticDeclName(CodeGenFunction &CGF, const VarDecl &D, const DeclContext *DC = ND->getDeclContext(); if (const BlockDecl *BD = dyn_cast<BlockDecl>(DC)) { MangleBuffer Name; - CGM.getMangledName(GlobalDecl(), Name, BD); + CGM.getBlockMangledName(GlobalDecl(), Name, BD); ContextName = Name.getString(); } else diff --git a/clang/lib/CodeGen/CGObjC.cpp b/clang/lib/CodeGen/CGObjC.cpp index 3574ba2c185..c7e0837b3dc 100644 --- a/clang/lib/CodeGen/CGObjC.cpp +++ b/clang/lib/CodeGen/CGObjC.cpp @@ -137,6 +137,8 @@ void CodeGenFunction::StartObjCMethod(const ObjCMethodDecl *OMD, E = OMD->param_end(); PI != E; ++PI) Args.push_back(std::make_pair(*PI, (*PI)->getType())); + CurGD = OMD; + StartFunction(OMD, OMD->getResultType(), Fn, Args, OMD->getLocStart()); } diff --git a/clang/lib/CodeGen/CGVTables.h b/clang/lib/CodeGen/CGVTables.h index 1d2e8c1e044..3e3cd4b165a 100644 --- a/clang/lib/CodeGen/CGVTables.h +++ b/clang/lib/CodeGen/CGVTables.h @@ -16,6 +16,7 @@ #include "llvm/ADT/DenseMap.h" #include "llvm/GlobalVariable.h" +#include "clang/Basic/ABI.h" #include "GlobalDecl.h" namespace clang { @@ -24,94 +25,6 @@ namespace clang { namespace CodeGen { class CodeGenModule; -/// ReturnAdjustment - A return adjustment. -struct ReturnAdjustment { - /// NonVirtual - The non-virtual adjustment from the derived object to its - /// nearest virtual base. - int64_t NonVirtual; - - /// VBaseOffsetOffset - The offset (in bytes), relative to the address point - /// of the virtual base class offset. - int64_t VBaseOffsetOffset; - - ReturnAdjustment() : NonVirtual(0), VBaseOffsetOffset(0) { } - - bool isEmpty() const { return !NonVirtual && !VBaseOffsetOffset; } - - friend bool operator==(const ReturnAdjustment &LHS, - const ReturnAdjustment &RHS) { - return LHS.NonVirtual == RHS.NonVirtual && - LHS.VBaseOffsetOffset == RHS.VBaseOffsetOffset; - } - - friend bool operator<(const ReturnAdjustment &LHS, - const ReturnAdjustment &RHS) { - if (LHS.NonVirtual < RHS.NonVirtual) - return true; - - return LHS.NonVirtual == RHS.NonVirtual && - LHS.VBaseOffsetOffset < RHS.VBaseOffsetOffset; - } -}; - -/// ThisAdjustment - A 'this' pointer adjustment. -struct ThisAdjustment { - /// NonVirtual - The non-virtual adjustment from the derived object to its - /// nearest virtual base. - int64_t NonVirtual; - - /// VCallOffsetOffset - The offset (in bytes), relative to the address point, - /// of the virtual call offset. - int64_t VCallOffsetOffset; - - ThisAdjustment() : NonVirtual(0), VCallOffsetOffset(0) { } - - bool isEmpty() const { return !NonVirtual && !VCallOffsetOffset; } - - friend bool operator==(const ThisAdjustment &LHS, - const ThisAdjustment &RHS) { - return LHS.NonVirtual == RHS.NonVirtual && - LHS.VCallOffsetOffset == RHS.VCallOffsetOffset; - } - - friend bool operator<(const ThisAdjustment &LHS, - const ThisAdjustment &RHS) { - if (LHS.NonVirtual < RHS.NonVirtual) - return true; - - return LHS.NonVirtual == RHS.NonVirtual && - LHS.VCallOffsetOffset < RHS.VCallOffsetOffset; - } -}; - -/// ThunkInfo - The 'this' pointer adjustment as well as an optional return -/// adjustment for a thunk. -struct ThunkInfo { - /// This - The 'this' pointer adjustment. - ThisAdjustment This; - - /// Return - The return adjustment. - ReturnAdjustment Return; - - ThunkInfo() { } - - ThunkInfo(const ThisAdjustment &This, const ReturnAdjustment &Return) - : This(This), Return(Return) { } - - friend bool operator==(const ThunkInfo &LHS, const ThunkInfo &RHS) { - return LHS.This == RHS.This && LHS.Return == RHS.Return; - } - - friend bool operator<(const ThunkInfo &LHS, const ThunkInfo &RHS) { - if (LHS.This < RHS.This) - return true; - - return LHS.This == RHS.This && LHS.Return < RHS.Return; - } - - bool isEmpty() const { return This.isEmpty() && Return.isEmpty(); } -}; - // BaseSubobject - Uniquely identifies a direct or indirect base class. // Stores both the base class decl and the offset from the most derived class to // the base class. diff --git a/clang/lib/CodeGen/CMakeLists.txt b/clang/lib/CodeGen/CMakeLists.txt index b985d685045..1f336789935 100644 --- a/clang/lib/CodeGen/CMakeLists.txt +++ b/clang/lib/CodeGen/CMakeLists.txt @@ -35,7 +35,6 @@ add_clang_library(clangCodeGen CodeGenTBAA.cpp CodeGenTypes.cpp ItaniumCXXABI.cpp - Mangle.cpp MicrosoftCXXABI.cpp ModuleBuilder.cpp TargetInfo.cpp diff --git a/clang/lib/CodeGen/CodeGenFunction.h b/clang/lib/CodeGen/CodeGenFunction.h index 7077b89ec2c..5f21d9fa434 100644 --- a/clang/lib/CodeGen/CodeGenFunction.h +++ b/clang/lib/CodeGen/CodeGenFunction.h @@ -18,6 +18,7 @@ #include "clang/AST/ExprCXX.h" #include "clang/AST/ExprObjC.h" #include "clang/AST/CharUnits.h" +#include "clang/Basic/ABI.h" #include "clang/Basic/TargetInfo.h" #include "llvm/ADT/DenseMap.h" #include "llvm/ADT/SmallVector.h" @@ -26,7 +27,6 @@ #include "CGBlocks.h" #include "CGBuilder.h" #include "CGCall.h" -#include "CGCXX.h" #include "CGValue.h" namespace llvm { diff --git a/clang/lib/CodeGen/CodeGenModule.cpp b/clang/lib/CodeGen/CodeGenModule.cpp index 9ed3150ff56..df90011104c 100644 --- a/clang/lib/CodeGen/CodeGenModule.cpp +++ b/clang/lib/CodeGen/CodeGenModule.cpp @@ -18,7 +18,6 @@ #include "CGCall.h" #include "CGCXXABI.h" #include "CGObjCRuntime.h" -#include "Mangle.h" #include "TargetInfo.h" #include "clang/Frontend/CodeGenOptions.h" #include "clang/AST/ASTContext.h" @@ -26,6 +25,7 @@ #include "clang/AST/DeclObjC.h" #include "clang/AST/DeclCXX.h" #include "clang/AST/DeclTemplate.h" +#include "clang/AST/Mangle.h" #include "clang/AST/RecordLayout.h" #include "clang/Basic/Builtins.h" #include "clang/Basic/Diagnostic.h" @@ -275,7 +275,7 @@ llvm::StringRef CodeGenModule::getMangledName(GlobalDecl GD) { else if (const CXXDestructorDecl *D = dyn_cast<CXXDestructorDecl>(ND)) getCXXABI().getMangleContext().mangleCXXDtor(D, GD.getDtorType(), Buffer); else if (const BlockDecl *BD = dyn_cast<BlockDecl>(ND)) - getCXXABI().getMangleContext().mangleBlock(GD, BD, Buffer); + getCXXABI().getMangleContext().mangleBlock(BD, Buffer); else getCXXABI().getMangleContext().mangleName(ND, Buffer); @@ -289,9 +289,18 @@ llvm::StringRef CodeGenModule::getMangledName(GlobalDecl GD) { return Str; } -void CodeGenModule::getMangledName(GlobalDecl GD, MangleBuffer &Buffer, - const BlockDecl *BD) { - getCXXABI().getMangleContext().mangleBlock(GD, BD, Buffer.getBuffer()); +void CodeGenModule::getBlockMangledName(GlobalDecl GD, MangleBuffer &Buffer, + const BlockDecl *BD) { + MangleContext &MangleCtx = getCXXABI().getMangleContext(); + const Decl *D = GD.getDecl(); + if (D == 0) + MangleCtx.mangleGlobalBlock(BD, Buffer.getBuffer()); + else if (const CXXConstructorDecl *CD = dyn_cast<CXXConstructorDecl>(D)) + MangleCtx.mangleCtorBlock(CD, GD.getCtorType(), BD, Buffer.getBuffer()); + else if (const CXXDestructorDecl *DD = dyn_cast<CXXDestructorDecl>(D)) + MangleCtx.mangleDtorBlock(DD, GD.getDtorType(), BD, Buffer.getBuffer()); + else + MangleCtx.mangleBlock(cast<DeclContext>(D), BD, Buffer.getBuffer()); } llvm::GlobalValue *CodeGenModule::GetGlobalValue(llvm::StringRef Name) { @@ -1304,7 +1313,6 @@ static void ReplaceUsesOfNonProtoTypeWithRealFunction(llvm::GlobalValue *Old, void CodeGenModule::EmitGlobalFunctionDefinition(GlobalDecl GD) { const FunctionDecl *D = cast<FunctionDecl>(GD.getDecl()); const llvm::FunctionType *Ty = getTypes().GetFunctionType(GD); - getCXXABI().getMangleContext().mangleInitDiscriminator(); // Get or create the prototype for the function. llvm::Constant *Entry = GetAddrOfFunction(GD, Ty); diff --git a/clang/lib/CodeGen/CodeGenModule.h b/clang/lib/CodeGen/CodeGenModule.h index 14a0e497a00..b1395be8c54 100644 --- a/clang/lib/CodeGen/CodeGenModule.h +++ b/clang/lib/CodeGen/CodeGenModule.h @@ -14,17 +14,17 @@ #ifndef CLANG_CODEGEN_CODEGENMODULE_H #define CLANG_CODEGEN_CODEGENMODULE_H +#include "clang/Basic/ABI.h" #include "clang/Basic/LangOptions.h" #include "clang/AST/Attr.h" #include "clang/AST/DeclCXX.h" #include "clang/AST/DeclObjC.h" +#include "clang/AST/Mangle.h" #include "CGBlocks.h" #include "CGCall.h" -#include "CGCXX.h" #include "CGVTables.h" #include "CodeGenTypes.h" #include "GlobalDecl.h" -#include "Mangle.h" #include "llvm/Module.h" #include "llvm/ADT/DenseMap.h" #include "llvm/ADT/StringMap.h" @@ -66,6 +66,7 @@ namespace clang { class Diagnostic; class AnnotateAttr; class CXXDestructorDecl; + class MangleBuffer; namespace CodeGen { @@ -74,7 +75,6 @@ namespace CodeGen { class CGCXXABI; class CGDebugInfo; class CGObjCRuntime; - class MangleBuffer; struct OrderGlobalInits { unsigned int priority; @@ -480,7 +480,8 @@ public: unsigned &CallingConv); llvm::StringRef getMangledName(GlobalDecl GD); - void getMangledName(GlobalDecl GD, MangleBuffer &Buffer, const BlockDecl *BD); + void getBlockMangledName(GlobalDecl GD, MangleBuffer &Buffer, + const BlockDecl *BD); void EmitTentativeDefinition(const VarDecl *D); diff --git a/clang/lib/CodeGen/CodeGenTBAA.cpp b/clang/lib/CodeGen/CodeGenTBAA.cpp index 61dc41ed450..71b43010e63 100644 --- a/clang/lib/CodeGen/CodeGenTBAA.cpp +++ b/clang/lib/CodeGen/CodeGenTBAA.cpp @@ -16,8 +16,8 @@ //===----------------------------------------------------------------------===// #include "CodeGenTBAA.h" -#include "Mangle.h" #include "clang/AST/ASTContext.h" +#include "clang/AST/Mangle.h" #include "llvm/LLVMContext.h" #include "llvm/Metadata.h" #include "llvm/Constants.h" diff --git a/clang/lib/CodeGen/CodeGenTBAA.h b/clang/lib/CodeGen/CodeGenTBAA.h index 29f7f544d31..c4583473a0e 100644 --- a/clang/lib/CodeGen/CodeGenTBAA.h +++ b/clang/lib/CodeGen/CodeGenTBAA.h @@ -26,11 +26,11 @@ namespace llvm { namespace clang { class ASTContext; class LangOptions; + class MangleContext; class QualType; class Type; namespace CodeGen { - class MangleContext; class CGRecordLayout; /// CodeGenTBAA - This class organizes the cross-module state that is used diff --git a/clang/lib/CodeGen/GlobalDecl.h b/clang/lib/CodeGen/GlobalDecl.h index 26dea402f4b..ab3e2019a6a 100644 --- a/clang/lib/CodeGen/GlobalDecl.h +++ b/clang/lib/CodeGen/GlobalDecl.h @@ -15,9 +15,9 @@ #ifndef CLANG_CODEGEN_GLOBALDECL_H #define CLANG_CODEGEN_GLOBALDECL_H -#include "CGCXX.h" #include "clang/AST/DeclCXX.h" #include "clang/AST/DeclObjC.h" +#include "clang/Basic/ABI.h" namespace clang { diff --git a/clang/lib/CodeGen/ItaniumCXXABI.cpp b/clang/lib/CodeGen/ItaniumCXXABI.cpp index 99575dfc8f5..554d2403c01 100644 --- a/clang/lib/CodeGen/ItaniumCXXABI.cpp +++ b/clang/lib/CodeGen/ItaniumCXXABI.cpp @@ -22,7 +22,7 @@ #include "CGRecordLayout.h" #include "CodeGenFunction.h" #include "CodeGenModule.h" -#include "Mangle.h" +#include <clang/AST/Mangle.h> #include <clang/AST/Type.h> #include <llvm/Target/TargetData.h> #include <llvm/Value.h> @@ -35,7 +35,6 @@ class ItaniumCXXABI : public CodeGen::CGCXXABI { private: const llvm::IntegerType *PtrDiffTy; protected: - CodeGen::MangleContext MangleCtx; bool IsARM; // It's a little silly for us to cache this. @@ -52,12 +51,7 @@ protected: public: ItaniumCXXABI(CodeGen::CodeGenModule &CGM, bool IsARM = false) : - CGCXXABI(CGM), PtrDiffTy(0), MangleCtx(getContext(), CGM.getDiags()), - IsARM(IsARM) { } - - CodeGen::MangleContext &getMangleContext() { - return MangleCtx; - } + CGCXXABI(CGM), PtrDiffTy(0), IsARM(IsARM) { } bool isZeroInitializable(const MemberPointerType *MPT); diff --git a/clang/lib/CodeGen/Mangle.cpp b/clang/lib/CodeGen/Mangle.cpp deleted file mode 100644 index b8ae1e7e41b..00000000000 --- a/clang/lib/CodeGen/Mangle.cpp +++ /dev/null @@ -1,2615 +0,0 @@ -//===--- Mangle.cpp - Mangle C++ Names --------------------------*- C++ -*-===// -// -// The LLVM Compiler Infrastructure -// -// This file is distributed under the University of Illinois Open Source -// License. See LICENSE.TXT for details. -// -//===----------------------------------------------------------------------===// -// -// Implements C++ name mangling according to the Itanium C++ ABI, -// which is used in GCC 3.2 and newer (and many compilers that are -// ABI-compatible with GCC): -// -// http://www.codesourcery.com/public/cxx-abi/abi.html -// -//===----------------------------------------------------------------------===// -#include "Mangle.h" -#include "clang/AST/ASTContext.h" -#include "clang/AST/Decl.h" -#include "clang/AST/DeclCXX.h" -#include "clang/AST/DeclObjC.h" -#include "clang/AST/DeclTemplate.h" -#include "clang/AST/ExprCXX.h" -#include "clang/Basic/SourceManager.h" -#include "llvm/ADT/StringExtras.h" -#include "llvm/Support/raw_ostream.h" -#include "llvm/Support/ErrorHandling.h" -#include "CGVTables.h" - -#define MANGLE_CHECKER 0 - -#if MANGLE_CHECKER -#include <cxxabi.h> -#endif - -using namespace clang; -using namespace CodeGen; - -MiscNameMangler::MiscNameMangler(MangleContext &C, - llvm::SmallVectorImpl<char> &Res) - : Context(C), Out(Res) { } - -void MiscNameMangler::mangleBlock(GlobalDecl GD, const BlockDecl *BD) { - // Mangle the context of the block. - // FIXME: We currently mimic GCC's mangling scheme, which leaves much to be - // desired. Come up with a better mangling scheme. - const DeclContext *DC = BD->getDeclContext(); - while (isa<BlockDecl>(DC) || isa<EnumDecl>(DC)) - DC = DC->getParent(); - if (DC->isFunctionOrMethod()) { - Out << "__"; - if (const ObjCMethodDecl *Method = dyn_cast<ObjCMethodDecl>(DC)) - mangleObjCMethodName(Method); - else { - const NamedDecl *ND = cast<NamedDecl>(DC); - if (IdentifierInfo *II = ND->getIdentifier()) - Out << II->getName(); - else if (const CXXDestructorDecl *D = dyn_cast<CXXDestructorDecl>(ND)) { - llvm::SmallString<64> Buffer; - Context.mangleCXXDtor(D, GD.getDtorType(), Buffer); - Out << Buffer; - } - else if (const CXXConstructorDecl *D = dyn_cast<CXXConstructorDecl>(ND)) { - llvm::SmallString<64> Buffer; - Context.mangleCXXCtor(D, GD.getCtorType(), Buffer); - Out << Buffer; - } - else { - // FIXME: We were doing a mangleUnqualifiedName() before, but that's - // a private member of a class that will soon itself be private to the - // Itanium C++ ABI object. What should we do now? Right now, I'm just - // calling the mangleName() method on the MangleContext; is there a - // better way? - llvm::SmallString<64> Buffer; - Context.mangleName(ND, Buffer); - Out << Buffer; - } - } - Out << "_block_invoke_" << Context.getBlockId(BD, true); - } else { - Out << "__block_global_" << Context.getBlockId(BD, false); - } -} - -void MiscNameMangler::mangleObjCMethodName(const ObjCMethodDecl *MD) { - llvm::SmallString<64> Name; - llvm::raw_svector_ostream OS(Name); - - const ObjCContainerDecl *CD = - dyn_cast<ObjCContainerDecl>(MD->getDeclContext()); - assert (CD && "Missing container decl in GetNameForMethod"); - OS << (MD->isInstanceMethod() ? '-' : '+') << '[' << CD->getName(); - if (const ObjCCategoryImplDecl *CID = dyn_cast<ObjCCategoryImplDecl>(CD)) - OS << '(' << CID << ')'; - OS << ' ' << MD->getSelector().getAsString() << ']'; - - Out << OS.str().size() << OS.str(); -} - -namespace { - -static const CXXRecordDecl *GetLocalClassDecl(const NamedDecl *ND) { - const DeclContext *DC = dyn_cast<DeclContext>(ND); - if (!DC) - DC = ND->getDeclContext(); - while (!DC->isNamespace() && !DC->isTranslationUnit()) { - if (isa<FunctionDecl>(DC->getParent())) - return dyn_cast<CXXRecordDecl>(DC); - DC = DC->getParent(); - } - return 0; -} - -static const CXXMethodDecl *getStructor(const CXXMethodDecl *MD) { - assert((isa<CXXConstructorDecl>(MD) || isa<CXXDestructorDecl>(MD)) && - "Passed in decl is not a ctor or dtor!"); - - if (const TemplateDecl *TD = MD->getPrimaryTemplate()) { - MD = cast<CXXMethodDecl>(TD->getTemplatedDecl()); - - assert((isa<CXXConstructorDecl>(MD) || isa<CXXDestructorDecl>(MD)) && - "Templated decl is not a ctor or dtor!"); - } - - return MD; -} - -static const unsigned UnknownArity = ~0U; - -/// CXXNameMangler - Manage the mangling of a single name. -class CXXNameMangler { - MangleContext &Context; - llvm::raw_svector_ostream Out; - - const CXXMethodDecl *Structor; - unsigned StructorType; - - /// SeqID - The next subsitution sequence number. - unsigned SeqID; - - llvm::DenseMap<uintptr_t, unsigned> Substitutions; - - ASTContext &getASTContext() const { return Context.getASTContext(); } - -public: - CXXNameMangler(MangleContext &C, llvm::SmallVectorImpl<char> &Res) - : Context(C), Out(Res), Structor(0), StructorType(0), SeqID(0) { } - CXXNameMangler(MangleContext &C, llvm::SmallVectorImpl<char> &Res, - const CXXConstructorDecl *D, CXXCtorType Type) - : Context(C), Out(Res), Structor(getStructor(D)), StructorType(Type), - SeqID(0) { } - CXXNameMangler(MangleContext &C, llvm::SmallVectorImpl<char> &Res, - const CXXDestructorDecl *D, CXXDtorType Type) - : Context(C), Out(Res), Structor(getStructor(D)), StructorType(Type), - SeqID(0) { } - -#if MANGLE_CHECKER - ~CXXNameMangler() { - if (Out.str()[0] == '\01') - return; - - int status = 0; - char *result = abi::__cxa_demangle(Out.str().str().c_str(), 0, 0, &status); - assert(status == 0 && "Could not demangle mangled name!"); - free(result); - } -#endif - llvm::raw_svector_ostream &getStream() { return Out; } - - void mangle(const NamedDecl *D, llvm::StringRef Prefix = "_Z"); - void mangleCallOffset(int64_t NonVirtual, int64_t Virtual); - void mangleNumber(const llvm::APSInt &I); - void mangleNumber(int64_t Number); - void mangleFloat(const llvm::APFloat &F); - void mangleFunctionEncoding(const FunctionDecl *FD); - void mangleName(const NamedDecl *ND); - void mangleType(QualType T); - void mangleNameOrStandardSubstitution(const NamedDecl *ND); - -private: - bool mangleSubstitution(const NamedDecl *ND); - bool mangleSubstitution(QualType T); - bool mangleSubstitution(TemplateName Template); - bool mangleSubstitution(uintptr_t Ptr); - - bool mangleStandardSubstitution(const NamedDecl *ND); - - void addSubstitution(const NamedDecl *ND) { - ND = cast<NamedDecl>(ND->getCanonicalDecl()); - - addSubstitution(reinterpret_cast<uintptr_t>(ND)); - } - void addSubstitution(QualType T); - void addSubstitution(TemplateName Template); - void addSubstitution(uintptr_t Ptr); - - void mangleUnresolvedScope(NestedNameSpecifier *Qualifier); - void mangleUnresolvedName(NestedNameSpecifier *Qualifier, - DeclarationName Name, - unsigned KnownArity = UnknownArity); - - void mangleName(const TemplateDecl *TD, - const TemplateArgument *TemplateArgs, - unsigned NumTemplateArgs); - void mangleUnqualifiedName(const NamedDecl *ND) { - mangleUnqualifiedName(ND, ND->getDeclName(), UnknownArity); - } - void mangleUnqualifiedName(const NamedDecl *ND, DeclarationName Name, - unsigned KnownArity); - void mangleUnscopedName(const NamedDecl *ND); - void mangleUnscopedTemplateName(const TemplateDecl *ND); - void mangleUnscopedTemplateName(TemplateName); - void mangleSourceName(const IdentifierInfo *II); - void mangleLocalName(const NamedDecl *ND); - void mangleNestedName(const NamedDecl *ND, const DeclContext *DC, - bool NoFunction=false); - void mangleNestedName(const TemplateDecl *TD, - const TemplateArgument *TemplateArgs, - unsigned NumTemplateArgs); - void manglePrefix(const DeclContext *DC, bool NoFunction=false); - void mangleTemplatePrefix(const TemplateDecl *ND); - void mangleTemplatePrefix(TemplateName Template); - void mangleOperatorName(OverloadedOperatorKind OO, unsigned Arity); - void mangleQualifiers(Qualifiers Quals); - - 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); - void mangleBareFunctionType(const FunctionType *T, - bool MangleReturnType); - void mangleNeonVectorType(const VectorType *T); - - void mangleIntegerLiteral(QualType T, const llvm::APSInt &Value); - void mangleMemberExpr(const Expr *Base, bool IsArrow, - NestedNameSpecifier *Qualifier, - DeclarationName Name, - unsigned KnownArity); - void mangleExpression(const Expr *E, unsigned Arity = UnknownArity); - void mangleCXXCtorType(CXXCtorType T); - void mangleCXXDtorType(CXXDtorType T); - - void mangleTemplateArgs(const ExplicitTemplateArgumentList &TemplateArgs); - void mangleTemplateArgs(TemplateName Template, - const TemplateArgument *TemplateArgs, - unsigned NumTemplateArgs); - void mangleTemplateArgs(const TemplateParameterList &PL, - const TemplateArgument *TemplateArgs, - unsigned NumTemplateArgs); - void mangleTemplateArgs(const TemplateParameterList &PL, - const TemplateArgumentList &AL); - void mangleTemplateArg(const NamedDecl *P, const TemplateArgument &A); - - void mangleTemplateParameter(unsigned Index); -}; -} - -static bool isInCLinkageSpecification(const Decl *D) { - D = D->getCanonicalDecl(); - for (const DeclContext *DC = D->getDeclContext(); - !DC->isTranslationUnit(); DC = DC->getParent()) { - if (const LinkageSpecDecl *Linkage = dyn_cast<LinkageSpecDecl>(DC)) - return Linkage->getLanguage() == LinkageSpecDecl::lang_c; - } - - return false; -} - -bool MangleContext::shouldMangleDeclName(const NamedDecl *D) { - // In C, functions with no attributes never need to be mangled. Fastpath them. - if (!getASTContext().getLangOptions().CPlusPlus && !D->hasAttrs()) - return false; - - // Any decl can be declared with __asm("foo") on it, and this takes precedence - // over all other naming in the .o file. - if (D->hasAttr<AsmLabelAttr>()) - return true; - - // Clang's "overloadable" attribute extension to C/C++ implies name mangling - // (always) as does passing a C++ member function and a function - // whose name is not a simple identifier. - const FunctionDecl *FD = dyn_cast<FunctionDecl>(D); - if (FD && (FD->hasAttr<OverloadableAttr>() || isa<CXXMethodDecl>(FD) || - !FD->getDeclName().isIdentifier())) - return true; - - // Otherwise, no mangling is done outside C++ mode. - if (!getASTContext().getLangOptions().CPlusPlus) - return false; - - // Variables at global scope with non-internal linkage are not mangled - if (!FD) { - const DeclContext *DC = D->getDeclContext(); - // Check for extern variable declared locally. - if (DC->isFunctionOrMethod() && D->hasLinkage()) - while (!DC->isNamespace() && !DC->isTranslationUnit()) - DC = DC->getParent(); - if (DC->isTranslationUnit() && D->getLinkage() != InternalLinkage) - return false; - } - - // Class members are always mangled. - if (D->getDeclContext()->isRecord()) - return true; - - // C functions and "main" are not mangled. - if ((FD && FD->isMain()) || isInCLinkageSpecification(D)) - return false; - - return true; -} - -void CXXNameMangler::mangle(const NamedDecl *D, llvm::StringRef Prefix) { - // Any decl can be declared with __asm("foo") on it, and this takes precedence - // over all other naming in the .o file. - if (const AsmLabelAttr *ALA = D->getAttr<AsmLabelAttr>()) { - // If we have an asm name, then we use it as the mangling. - Out << '\01'; // LLVM IR Marker for __asm("foo") - Out << ALA->getLabel(); - return; - } - - // <mangled-name> ::= _Z <encoding> - // ::= <data name> - // ::= <special-name> - Out << Prefix; - if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) - mangleFunctionEncoding(FD); - else if (const VarDecl *VD = dyn_cast<VarDecl>(D)) - mangleName(VD); - else - mangleName(cast<FieldDecl>(D)); -} - -void CXXNameMangler::mangleFunctionEncoding(const FunctionDecl *FD) { - // <encoding> ::= <function name> <bare-function-type> - mangleName(FD); - - // Don't mangle in the type if this isn't a decl we should typically mangle. - if (!Context.shouldMangleDeclName(FD)) - return; - - // 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(); - } - - // Do the canonicalization out here because parameter types can - // undergo additional canonicalization (e.g. array decay). - FunctionType *FT = cast<FunctionType>(Context.getASTContext() - .getCanonicalType(FD->getType())); - - mangleBareFunctionType(FT, MangleReturnType); -} - -static const DeclContext *IgnoreLinkageSpecDecls(const DeclContext *DC) { - while (isa<LinkageSpecDecl>(DC)) { - DC = DC->getParent(); - } - - return DC; -} - -/// isStd - Return whether a given namespace is the 'std' namespace. -static bool isStd(const NamespaceDecl *NS) { - if (!IgnoreLinkageSpecDecls(NS->getParent())->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(); - } - - return 0; -} - -void CXXNameMangler::mangleName(const NamedDecl *ND) { - // <name> ::= <nested-name> - // ::= <unscoped-name> - // ::= <unscoped-template-name> <template-args> - // ::= <local-name> - // - const DeclContext *DC = ND->getDeclContext(); - - // If this is an extern variable declared locally, the relevant DeclContext - // is that of the containing namespace, or the translation unit. - if (isa<FunctionDecl>(DC) && ND->hasLinkage()) - while (!DC->isNamespace() && !DC->isTranslationUnit()) - DC = DC->getParent(); - else if (GetLocalClassDecl(ND)) { - mangleLocalName(ND); - return; - } - - while (isa<LinkageSpecDecl>(DC)) - DC = DC->getParent(); - - if (DC->isTranslationUnit() || isStdNamespace(DC)) { - // Check if we have a template. - const TemplateArgumentList *TemplateArgs = 0; - if (const TemplateDecl *TD = isTemplate(ND, TemplateArgs)) { - mangleUnscopedTemplateName(TD); - TemplateParameterList *TemplateParameters = TD->getTemplateParameters(); - mangleTemplateArgs(*TemplateParameters, *TemplateArgs); - return; - } - - mangleUnscopedName(ND); - return; - } - - if (isa<FunctionDecl>(DC) || isa<ObjCMethodDecl>(DC)) { - mangleLocalName(ND); - return; - } - - mangleNestedName(ND, DC); -} -void CXXNameMangler::mangleName(const TemplateDecl *TD, - const TemplateArgument *TemplateArgs, - unsigned NumTemplateArgs) { - const DeclContext *DC = IgnoreLinkageSpecDecls(TD->getDeclContext()); - - if (DC->isTranslationUnit() || isStdNamespace(DC)) { - mangleUnscopedTemplateName(TD); - TemplateParameterList *TemplateParameters = TD->getTemplateParameters(); - mangleTemplateArgs(*TemplateParameters, TemplateArgs, NumTemplateArgs); - } else { - mangleNestedName(TD, TemplateArgs, NumTemplateArgs); - } -} - -void CXXNameMangler::mangleUnscopedName(const NamedDecl *ND) { - // <unscoped-name> ::= <unqualified-name> - // ::= St <unqualified-name> # ::std:: - if (isStdNamespace(ND->getDeclContext())) - Out << "St"; - - mangleUnqualifiedName(ND); -} - -void CXXNameMangler::mangleUnscopedTemplateName(const TemplateDecl *ND) { - // <unscoped-template-name> ::= <unscoped-name> - // ::= <substitution> - if (mangleSubstitution(ND)) - return; - - // <template-template-param> ::= <template-param> - if (const TemplateTemplateParmDecl *TTP - = dyn_cast<TemplateTemplateParmDecl>(ND)) { - mangleTemplateParameter(TTP->getIndex()); - return; - } - - mangleUnscopedName(ND->getTemplatedDecl()); - addSubstitution(ND); -} - -void CXXNameMangler::mangleUnscopedTemplateName(TemplateName Template) { - // <unscoped-template-name> ::= <unscoped-name> - // ::= <substitution> - if (TemplateDecl *TD = Template.getAsTemplateDecl()) - return mangleUnscopedTemplateName(TD); - - if (mangleSubstitution(Template)) - return; - - // FIXME: How to cope with operators here? - DependentTemplateName *Dependent = Template.getAsDependentTemplateName(); - assert(Dependent && "Not a dependent template name?"); - if (!Dependent->isIdentifier()) { - // FIXME: We can't possibly know the arity of the operator here! - Diagnostic &Diags = Context.getDiags(); - unsigned DiagID = Diags.getCustomDiagID(Diagnostic::Error, - "cannot mangle dependent operator name"); - Diags.Report(DiagID); - return; - } - - mangleSourceName(Dependent->getIdentifier()); - addSubstitution(Template); -} - -void CXXNameMangler::mangleFloat(const llvm::APFloat &F) { - // TODO: avoid this copy with careful stream management. - llvm::SmallString<20> Buffer; - F.bitcastToAPInt().toString(Buffer, 16, false); - Out.write(Buffer.data(), Buffer.size()); -} - -void CXXNameMangler::mangleNumber(const llvm::APSInt &Value) { - if (Value.isSigned() && Value.isNegative()) { - Out << 'n'; - Value.abs().print(Out, true); - } else - Value.print(Out, Value.isSigned()); -} - -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::mangleUnresolvedScope(NestedNameSpecifier *Qualifier) { - Qualifier = getASTContext().getCanonicalNestedNameSpecifier(Qualifier); - switch (Qualifier->getKind()) { - case NestedNameSpecifier::Global: - // nothing - break; - case NestedNameSpecifier::Namespace: - mangleName(Qualifier->getAsNamespace()); - break; - case NestedNameSpecifier::TypeSpec: - case NestedNameSpecifier::TypeSpecWithTemplate: { - const Type *QTy = Qualifier->getAsType(); - - if (const TemplateSpecializationType *TST = - dyn_cast<TemplateSpecializationType>(QTy)) { - 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->getTemplateName(), TST->getArgs(), - TST->getNumArgs()); - addSubstitution(QualType(TST, 0)); - } - } else { - // We use the QualType mangle type variant here because it handles - // substitutions. - mangleType(QualType(QTy, 0)); - } - } - break; - case NestedNameSpecifier::Identifier: - // Member expressions can have these without prefixes. - if (Qualifier->getPrefix()) - mangleUnresolvedScope(Qualifier->getPrefix()); - mangleSourceName(Qualifier->getAsIdentifier()); - break; - } -} - -/// Mangles a name which was not resolved to a specific entity. -void CXXNameMangler::mangleUnresolvedName(NestedNameSpecifier *Qualifier, - DeclarationName Name, - unsigned KnownArity) { - if (Qualifier) - mangleUnresolvedScope(Qualifier); - // FIXME: ambiguity of unqualified lookup with :: - - mangleUnqualifiedName(0, Name, KnownArity); -} - -static const FieldDecl *FindFirstNamedDataMember(const RecordDecl *RD) { - assert(RD->isAnonymousStructOrUnion() && - "Expected anonymous struct or union!"); - - for (RecordDecl::field_iterator I = RD->field_begin(), E = RD->field_end(); - I != E; ++I) { - const FieldDecl *FD = *I; - - if (FD->getIdentifier()) - return FD; - - if (const RecordType *RT = FD->getType()->getAs<RecordType>()) { - if (const FieldDecl *NamedDataMember = - FindFirstNamedDataMember(RT->getDecl())) - return NamedDataMember; - } - } - - // We didn't find a named data member. - return 0; -} - -void CXXNameMangler::mangleUnqualifiedName(const NamedDecl *ND, - DeclarationName Name, - unsigned KnownArity) { - // <unqualified-name> ::= <operator-name> - // ::= <ctor-dtor-name> - // ::= <source-name> - switch (Name.getNameKind()) { - case DeclarationName::Identifier: { - if (const IdentifierInfo *II = Name.getAsIdentifierInfo()) { - // We must avoid conflicts between internally- and externally- - // linked variable declaration names in the same TU. - // This naming convention is the same as that followed by GCC, though it - // shouldn't actually matter. - if (ND && isa<VarDecl>(ND) && ND->getLinkage() == InternalLinkage && - ND->getDeclContext()->isFileContext()) - Out << 'L'; - - mangleSourceName(II); - 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. - const FieldDecl *FD = FindFirstNamedDataMember(RD); - - // 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()); - break; - } - - // We must have an anonymous struct. - const TagDecl *TD = cast<TagDecl>(ND); - if (const TypedefDecl *D = TD->getTypedefForAnonDecl()) { - 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()); - break; - } - - // Get a unique id for the anonymous struct. - uint64_t AnonStructId = Context.getAnonymousStructId(TD); - - // Mangle it as a source name in the form - // [n] $_<id> - // where n is the length of the string. - llvm::SmallString<8> Str; - Str += "$_"; - Str += llvm::utostr(AnonStructId); - - Out << Str.size(); - Out << Str.str(); - break; - } - - case DeclarationName::ObjCZeroArgSelector: - case DeclarationName::ObjCOneArgSelector: - case DeclarationName::ObjCMultiArgSelector: - assert(false && "Can't mangle Objective-C selector names here!"); - break; - - case DeclarationName::CXXConstructorName: - 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)); - else - // Otherwise, use the complete constructor name. This is relevant if a - // class with a constructor is declared within a constructor. - mangleCXXCtorType(Ctor_Complete); - 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); - break; - - case DeclarationName::CXXConversionFunctionName: - // <operator-name> ::= cv <type> # (cast) - Out << "cv"; - mangleType(Context.getASTContext().getCanonicalType(Name.getCXXNameType())); - break; - - case DeclarationName::CXXOperatorName: { - unsigned Arity; - if (ND) { - Arity = cast<FunctionDecl>(ND)->getNumParams(); - - // If we have a C++ member function, we need to include the 'this' pointer. - // FIXME: This does not make sense for operators that are static, but their - // names stay the same regardless of the arity (operator new for instance). - if (isa<CXXMethodDecl>(ND)) - Arity++; - } else - Arity = KnownArity; - - mangleOperatorName(Name.getCXXOverloadedOperator(), Arity); - break; - } - - case DeclarationName::CXXLiteralOperatorName: - // FIXME: This mangling is not yet official. - Out << "li"; - mangleSourceName(Name.getCXXLiteralIdentifier()); - break; - - case DeclarationName::CXXUsingDirective: - assert(false && "Can't mangle a using directive name!"); - break; - } -} - -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, - bool NoFunction) { - // <nested-name> ::= N [<CV-qualifiers>] <prefix> <unqualified-name> E - // ::= N [<CV-qualifiers>] <template-prefix> <template-args> E - - Out << 'N'; - if (const CXXMethodDecl *Method = dyn_cast<CXXMethodDecl>(ND)) - mangleQualifiers(Qualifiers::fromCVRMask(Method->getTypeQualifiers())); - - // Check if we have a template. - const TemplateArgumentList *TemplateArgs = 0; - if (const TemplateDecl *TD = isTemplate(ND, TemplateArgs)) { - mangleTemplatePrefix(TD); - TemplateParameterList *TemplateParameters = TD->getTemplateParameters(); - mangleTemplateArgs(*TemplateParameters, *TemplateArgs); - } - else { - manglePrefix(DC, NoFunction); - mangleUnqualifiedName(ND); - } - - 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); - TemplateParameterList *TemplateParameters = TD->getTemplateParameters(); - mangleTemplateArgs(*TemplateParameters, TemplateArgs, NumTemplateArgs); - - Out << 'E'; -} - -void CXXNameMangler::mangleLocalName(const NamedDecl *ND) { - // <local-name> := Z <function encoding> E <entity name> [<discriminator>] - // := Z <function encoding> E s [<discriminator>] - // <discriminator> := _ <non-negative number> - const DeclContext *DC = ND->getDeclContext(); - Out << 'Z'; - - if (const ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(DC)) { - mangleObjCMethodName(MD); - } else if (const CXXRecordDecl *RD = GetLocalClassDecl(ND)) { - mangleFunctionEncoding(cast<FunctionDecl>(RD->getDeclContext())); - Out << 'E'; - - // Mangle the name relative to the closest enclosing function. - if (ND == RD) // equality ok because RD derived from ND above - mangleUnqualifiedName(ND); - else - mangleNestedName(ND, DC, true /*NoFunction*/); - - unsigned disc; - if (Context.getNextDiscriminator(RD, disc)) { - if (disc < 10) - Out << '_' << disc; - else - Out << "__" << disc << '_'; - } - - return; - } - else - mangleFunctionEncoding(cast<FunctionDecl>(DC)); - - Out << 'E'; - mangleUnqualifiedName(ND); -} - -void CXXNameMangler::manglePrefix(const DeclContext *DC, bool NoFunction) { - // <prefix> ::= <prefix> <unqualified-name> - // ::= <template-prefix> <template-args> - // ::= <template-param> - // ::= # empty - // ::= <substitution> - - while (isa<LinkageSpecDecl>(DC)) - DC = DC->getParent(); - - if (DC->isTranslationUnit()) - return; - - if (const BlockDecl *Block = dyn_cast<BlockDecl>(DC)) { - manglePrefix(DC->getParent(), NoFunction); - llvm::SmallString<64> Name; - Context.mangleBlock(GlobalDecl(), Block, Name); - Out << Name.size() << Name; - return; - } - - if (mangleSubstitution(cast<NamedDecl>(DC))) - return; - - // Check if we have a template. - const TemplateArgumentList *TemplateArgs = 0; - if (const TemplateDecl *TD = isTemplate(cast<NamedDecl>(DC), TemplateArgs)) { - mangleTemplatePrefix(TD); - TemplateParameterList *TemplateParameters = TD->getTemplateParameters(); - mangleTemplateArgs(*TemplateParameters, *TemplateArgs); - } - else if(NoFunction && (isa<FunctionDecl>(DC) || isa<ObjCMethodDecl>(DC))) - return; - else if (const ObjCMethodDecl *Method = dyn_cast<ObjCMethodDecl>(DC)) - mangleObjCMethodName(Method); - else { - manglePrefix(DC->getParent(), NoFunction); - mangleUnqualifiedName(cast<NamedDecl>(DC)); - } - - addSubstitution(cast<NamedDecl>(DC)); -} - -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()) - mangleUnresolvedScope(Qualified->getQualifier()); - - if (OverloadedTemplateStorage *Overloaded - = Template.getAsOverloadedTemplate()) { - mangleUnqualifiedName(0, (*Overloaded->begin())->getDeclName(), - UnknownArity); - return; - } - - DependentTemplateName *Dependent = Template.getAsDependentTemplateName(); - assert(Dependent && "Unknown template name kind?"); - mangleUnresolvedScope(Dependent->getQualifier()); - mangleUnscopedTemplateName(Template); -} - -void CXXNameMangler::mangleTemplatePrefix(const TemplateDecl *ND) { - // <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 TemplateTemplateParmDecl *TTP - = dyn_cast<TemplateTemplateParmDecl>(ND)) { - mangleTemplateParameter(TTP->getIndex()); - return; - } - - manglePrefix(ND->getDeclContext()); - mangleUnqualifiedName(ND->getTemplatedDecl()); - 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 = 0; - - 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>"); - break; - - case TemplateName::DependentTemplate: { - const DependentTemplateName *Dependent = TN.getAsDependentTemplateName(); - assert(Dependent->isIdentifier()); - - // <class-enum-type> ::= <name> - // <name> ::= <nested-name> - mangleUnresolvedScope(Dependent->getQualifier()); - mangleSourceName(Dependent->getIdentifier()); - break; - } - - } - - addSubstitution(TN); -} - -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; - - case OO_None: - case NUM_OVERLOADED_OPERATORS: - assert(false && "Not an overloaded operator"); - break; - } -} - -void CXXNameMangler::mangleQualifiers(Qualifiers Quals) { - // <CV-qualifiers> ::= [r] [V] [K] # restrict (C99), volatile, const - if (Quals.hasRestrict()) - Out << 'r'; - if (Quals.hasVolatile()) - Out << 'V'; - if (Quals.hasConst()) - Out << 'K'; - - if (Quals.hasAddressSpace()) { - // Extension: - // - // <type> ::= U <address-space-number> - // - // where <address-space-number> is a source name consisting of 'AS' - // followed by the address space <number>. - llvm::SmallString<64> ASString; - ASString = "AS" + llvm::utostr_32(Quals.getAddressSpace()); - Out << 'U' << ASString.size() << ASString; - } - - // FIXME: For now, just drop all extension qualifiers on the floor. -} - -void CXXNameMangler::mangleObjCMethodName(const ObjCMethodDecl *MD) { - llvm::SmallString<64> Buffer; - MiscNameMangler(Context, Buffer).mangleObjCMethodName(MD); - Out << Buffer; -} - -void CXXNameMangler::mangleType(QualType T) { - // Only operate on the canonical type! - T = Context.getASTContext().getCanonicalType(T); - - bool IsSubstitutable = T.hasLocalQualifiers() || !isa<BuiltinType>(T); - if (IsSubstitutable && mangleSubstitution(T)) - return; - - if (Qualifiers Quals = T.getLocalQualifiers()) { - mangleQualifiers(Quals); - // Recurse: even if the qualified type isn't yet substitutable, - // the unqualified type might be. - mangleType(T.getLocalUnqualifiedType()); - } else { - switch (T->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*>(T.getTypePtr())); \ - 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 - // UNSUPPORTED: ::= o # unsigned __int128 - // ::= f # float - // ::= d # double - // ::= e # long double, __float80 - // UNSUPPORTED: ::= 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) - // UNSUPPORTED: ::= 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 - 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::Float: Out << 'f'; break; - case BuiltinType::Double: Out << 'd'; break; - case BuiltinType::LongDouble: Out << 'e'; break; - case BuiltinType::NullPtr: Out << "Dn"; break; - - case BuiltinType::Overload: - case BuiltinType::Dependent: - assert(false && - "Overloaded and dependent types shouldn't get to name mangling"); - break; - case BuiltinType::UndeducedAuto: - assert(0 && "Should not see undeduced auto here"); - break; - case BuiltinType::ObjCId: Out << "11objc_object"; break; - case BuiltinType::ObjCClass: Out << "10objc_class"; break; - case BuiltinType::ObjCSel: Out << "13objc_selector"; break; - } -} - -// <type> ::= <function-type> -// <function-type> ::= F [Y] <bare-function-type> E -void CXXNameMangler::mangleType(const FunctionProtoType *T) { - 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); - Out << 'E'; -} -void CXXNameMangler::mangleType(const FunctionNoProtoType *T) { - llvm_unreachable("Can't mangle K&R function prototypes"); -} -void CXXNameMangler::mangleBareFunctionType(const FunctionType *T, - bool MangleReturnType) { - // We should never be mangling something without a prototype. - const FunctionProtoType *Proto = cast<FunctionProtoType>(T); - - // <bare-function-type> ::= <signature type>+ - if (MangleReturnType) - mangleType(Proto->getResultType()); - - if (Proto->getNumArgs() == 0 && !Proto->isVariadic()) { - // <builtin-type> ::= v # void - Out << 'v'; - return; - } - - for (FunctionProtoType::arg_type_iterator Arg = Proto->arg_type_begin(), - ArgEnd = Proto->arg_type_end(); - Arg != ArgEnd; ++Arg) - mangleType(*Arg); - - // <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)) { - mangleQualifiers(Qualifiers::fromCVRMask(FPT->getTypeQuals())); - 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. - - // We increment the SeqID here to emulate adding an entry to the - // substitution table. We can't actually add it because we don't want this - // particular function type to be substituted. - ++SeqID; - } else - mangleType(PointeeType); -} - -// <type> ::= <template-param> -void CXXNameMangler::mangleType(const TemplateTypeParmType *T) { - mangleTemplateParameter(T->getIndex()); -} - -// <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 = 0; - if (T->getVectorKind() == VectorType::NeonPolyVector) { - switch (cast<BuiltinType>(EltType)->getKind()) { - case BuiltinType::SChar: EltName = "poly8_t"; break; - case BuiltinType::Short: EltName = "poly16_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::Float: EltName = "float32_t"; break; - default: llvm_unreachable("unexpected Neon vector element type"); - } - } - const char *BaseName = 0; - 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; -} - -// 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 -void CXXNameMangler::mangleType(const VectorType *T) { - if ((T->getVectorKind() == VectorType::NeonVector || - T->getVectorKind() == VectorType::NeonPolyVector)) { - 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) { - // We don't allow overloading by different protocol qualification, - // so mangling them isn't necessary. - mangleType(T->getBaseType()); -} - -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()) { - mangleName(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->getTemplateName(), T->getArgs(), T->getNumArgs()); - addSubstitution(QualType(T, 0)); - } -} - -void CXXNameMangler::mangleType(const DependentNameType *T) { - // Typename types are always nested - Out << 'N'; - mangleUnresolvedScope(T->getQualifier()); - mangleSourceName(T->getIdentifier()); - Out << 'E'; -} - -void CXXNameMangler::mangleType(const DependentTemplateSpecializationType *T) { - // Dependently-scoped template types are always nested - 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(Prefix, 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::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'; - -} - -/// Mangles a member expression. Implicit accesses are not handled, -/// but that should be okay, because you shouldn't be able to -/// make an implicit access in a function template declaration. -void CXXNameMangler::mangleMemberExpr(const Expr *Base, - bool IsArrow, - NestedNameSpecifier *Qualifier, - DeclarationName Member, - unsigned Arity) { - // gcc-4.4 uses 'dt' for dot expressions, which is reasonable. - // OTOH, gcc also mangles the name as an expression. - Out << (IsArrow ? "pt" : "dt"); - mangleExpression(Base); - mangleUnresolvedName(Qualifier, Member, Arity); -} - -void CXXNameMangler::mangleExpression(const Expr *E, unsigned Arity) { - // <expression> ::= <unary operator-name> <expression> - // ::= <binary operator-name> <expression> <expression> - // ::= <trinary operator-name> <expression> <expression> <expression> - // ::= cl <expression>* E # call - // ::= cv <type> expression # conversion with one argument - // ::= cv <type> _ <expression>* E # conversion with a different number of arguments - // ::= 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 - // ::= 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 - switch (E->getStmtClass()) { - case Expr::NoStmtClass: -#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::BlockDeclRefExprClass: - case Expr::CXXThisExprClass: - case Expr::DesignatedInitExprClass: - case Expr::ImplicitValueInitExprClass: - case Expr::InitListExprClass: - case Expr::ParenListExprClass: - case Expr::CXXScalarValueInitExprClass: - llvm_unreachable("unexpected statement kind"); - break; - - // FIXME: invent manglings for all these. - case Expr::BlockExprClass: - case Expr::CXXPseudoDestructorExprClass: - case Expr::ChooseExprClass: - case Expr::CompoundLiteralExprClass: - case Expr::ExtVectorElementExprClass: - 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::OffsetOfExprClass: - case Expr::PredefinedExprClass: - case Expr::ShuffleVectorExprClass: - case Expr::StmtExprClass: - case Expr::UnaryTypeTraitExprClass: - case Expr::BinaryTypeTraitExprClass: - case Expr::VAArgExprClass: - case Expr::CXXUuidofExprClass: - case Expr::CXXNoexceptExprClass: { - // As bad as this diagnostic is, it's better than crashing. - Diagnostic &Diags = Context.getDiags(); - unsigned DiagID = Diags.getCustomDiagID(Diagnostic::Error, - "cannot yet mangle expression type %0"); - Diags.Report(E->getExprLoc(), DiagID) - << E->getStmtClassName() << E->getSourceRange(); - break; - } - - case Expr::OpaqueValueExprClass: - llvm_unreachable("cannot mangle opaque value; mangling wrong thing?"); - - case Expr::CXXDefaultArgExprClass: - mangleExpression(cast<CXXDefaultArgExpr>(E)->getExpr(), Arity); - break; - - case Expr::CXXMemberCallExprClass: // fallthrough - case Expr::CallExprClass: { - const CallExpr *CE = cast<CallExpr>(E); - Out << "cl"; - mangleExpression(CE->getCallee(), CE->getNumArgs()); - for (unsigned I = 0, N = CE->getNumArgs(); I != N; ++I) - mangleExpression(CE->getArg(I)); - Out << 'E'; - break; - } - - case Expr::CXXNewExprClass: { - // Proposal from David Vandervoorde, 2010.06.30 - 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()) { - Out << "pi"; - for (CXXNewExpr::const_arg_iterator I = New->constructor_arg_begin(), - E = New->constructor_arg_end(); I != E; ++I) - mangleExpression(*I); - } - Out << 'E'; - break; - } - - case Expr::MemberExprClass: { - const MemberExpr *ME = cast<MemberExpr>(E); - mangleMemberExpr(ME->getBase(), ME->isArrow(), - ME->getQualifier(), ME->getMemberDecl()->getDeclName(), - Arity); - break; - } - - case Expr::UnresolvedMemberExprClass: { - const UnresolvedMemberExpr *ME = cast<UnresolvedMemberExpr>(E); - mangleMemberExpr(ME->getBase(), ME->isArrow(), - ME->getQualifier(), ME->getMemberName(), - Arity); - if (ME->hasExplicitTemplateArgs()) - mangleTemplateArgs(ME->getExplicitTemplateArgs()); - break; - } - - case Expr::CXXDependentScopeMemberExprClass: { - const CXXDependentScopeMemberExpr *ME - = cast<CXXDependentScopeMemberExpr>(E); - mangleMemberExpr(ME->getBase(), ME->isArrow(), - ME->getQualifier(), ME->getMember(), - Arity); - if (ME->hasExplicitTemplateArgs()) - mangleTemplateArgs(ME->getExplicitTemplateArgs()); - break; - } - - case Expr::UnresolvedLookupExprClass: { - // The ABI doesn't cover how to mangle overload sets, so we mangle - // using something as close as possible to the original lookup - // expression. - const UnresolvedLookupExpr *ULE = cast<UnresolvedLookupExpr>(E); - mangleUnresolvedName(ULE->getQualifier(), ULE->getName(), Arity); - if (ULE->hasExplicitTemplateArgs()) - mangleTemplateArgs(ULE->getExplicitTemplateArgs()); - 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::CXXTemporaryObjectExprClass: - case Expr::CXXConstructExprClass: { - const CXXConstructExpr *CE = cast<CXXConstructExpr>(E); - unsigned N = CE->getNumArgs(); - - 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::SizeOfAlignOfExprClass: { - const SizeOfAlignOfExpr *SAE = cast<SizeOfAlignOfExpr>(E); - if (SAE->isSizeOf()) Out << 's'; - else Out << 'a'; - if (SAE->isArgumentType()) { - Out << 't'; - mangleType(SAE->getArgumentType()); - } else { - Out << 'z'; - mangleExpression(SAE->getArgumentExpr()); - } - break; - } - - case Expr::CXXThrowExprClass: { - const CXXThrowExpr *TE = cast<CXXThrowExpr>(E); - - // Proposal from David Vandervoorde, 2010.06.30 - if (TE->getSubExpr()) { - Out << "tw"; - mangleExpression(TE->getSubExpr()); - } else { - Out << "tr"; - } - break; - } - - case Expr::CXXTypeidExprClass: { - const CXXTypeidExpr *TIE = cast<CXXTypeidExpr>(E); - - // Proposal from David Vandervoorde, 2010.06.30 - if (TIE->isTypeOperand()) { - Out << "ti"; - mangleType(TIE->getTypeOperand()); - } else { - Out << "te"; - mangleExpression(TIE->getExprOperand()); - } - break; - } - - case Expr::CXXDeleteExprClass: { - const CXXDeleteExpr *DE = cast<CXXDeleteExpr>(E); - - // Proposal from David Vandervoorde, 2010.06.30 - 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 wierd 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); - 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: { - mangleExpression(cast<ImplicitCastExpr>(E)->getSubExpr(), Arity); - break; - } - - case Expr::CStyleCastExprClass: - case Expr::CXXStaticCastExprClass: - case Expr::CXXDynamicCastExprClass: - case Expr::CXXReinterpretCastExprClass: - case Expr::CXXConstCastExprClass: - case Expr::CXXFunctionalCastExprClass: { - const ExplicitCastExpr *ECE = cast<ExplicitCastExpr>(E); - Out << "cv"; - mangleType(ECE->getType()); - mangleExpression(ECE->getSubExpr()); - 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, "_Z"); - Out << 'E'; - 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::DependentScopeDeclRefExprClass: { - const DependentScopeDeclRefExpr *DRE = cast<DependentScopeDeclRefExpr>(E); - NestedNameSpecifier *NNS = DRE->getQualifier(); - const Type *QTy = NNS->getAsType(); - - // When we're dealing with a nested-name-specifier that has just a - // dependent identifier in it, mangle that as a typename. FIXME: - // It isn't clear that we ever actually want to have such a - // nested-name-specifier; why not just represent it as a typename type? - if (!QTy && NNS->getAsIdentifier() && NNS->getPrefix()) { - QTy = getASTContext().getDependentNameType(ETK_Typename, - NNS->getPrefix(), - NNS->getAsIdentifier()) - .getTypePtr(); - } - assert(QTy && "Qualifier was not type!"); - - // ::= sr <type> <unqualified-name> # dependent name - // ::= sr <type> <unqualified-name> <template-args> # dependent template-id - Out << "sr"; - mangleType(QualType(QTy, 0)); - mangleUnqualifiedName(0, DRE->getDeclName(), Arity); - if (DRE->hasExplicitTemplateArgs()) - mangleTemplateArgs(DRE->getExplicitTemplateArgs()); - - 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; - - 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: { - // Proposal from David Vandervoorde, 2010.06.30, as - // modified by ABI list discussion. - Out << "LDnE"; - break; - } - - case Expr::PackExpansionExprClass: - Out << "sp"; - mangleExpression(cast<PackExpansionExpr>(E)->getPattern()); - break; - - case Expr::SizeOfPackExprClass: { - Out << "sZ"; - const NamedDecl *Pack = cast<SizeOfPackExpr>(E)->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 { - // Note: proposed by Mike Herrick on 11/30/10 - // <expression> ::= sZ <function-param> # size of function parameter pack - Diagnostic &Diags = Context.getDiags(); - unsigned DiagID = Diags.getCustomDiagID(Diagnostic::Error, - "cannot mangle sizeof...(function parameter pack)"); - Diags.Report(DiagID); - return; - } - } - } -} - -void CXXNameMangler::mangleCXXCtorType(CXXCtorType T) { - // <ctor-dtor-name> ::= C1 # complete object constructor - // ::= C2 # base object constructor - // ::= C3 # complete object allocating constructor - // - switch (T) { - case Ctor_Complete: - Out << "C1"; - break; - case Ctor_Base: - Out << "C2"; - break; - case Ctor_CompleteAllocating: - Out << "C3"; - break; - } -} - -void CXXNameMangler::mangleCXXDtorType(CXXDtorType T) { - // <ctor-dtor-name> ::= D0 # deleting destructor - // ::= D1 # complete object destructor - // ::= D2 # base object destructor - // - switch (T) { - case Dtor_Deleting: - Out << "D0"; - break; - case Dtor_Complete: - Out << "D1"; - break; - case Dtor_Base: - Out << "D2"; - break; - } -} - -void CXXNameMangler::mangleTemplateArgs( - const ExplicitTemplateArgumentList &TemplateArgs) { - // <template-args> ::= I <template-arg>+ E - Out << 'I'; - for (unsigned I = 0, E = TemplateArgs.NumTemplateArgs; I != E; ++I) - mangleTemplateArg(0, TemplateArgs.getTemplateArgs()[I].getArgument()); - Out << 'E'; -} - -void CXXNameMangler::mangleTemplateArgs(TemplateName Template, - const TemplateArgument *TemplateArgs, - unsigned NumTemplateArgs) { - if (TemplateDecl *TD = Template.getAsTemplateDecl()) - return mangleTemplateArgs(*TD->getTemplateParameters(), TemplateArgs, - NumTemplateArgs); - - // <template-args> ::= I <template-arg>+ E - Out << 'I'; - for (unsigned i = 0; i != NumTemplateArgs; ++i) - mangleTemplateArg(0, TemplateArgs[i]); - Out << 'E'; -} - -void CXXNameMangler::mangleTemplateArgs(const TemplateParameterList &PL, - const TemplateArgumentList &AL) { - // <template-args> ::= I <template-arg>+ E - Out << 'I'; - for (unsigned i = 0, e = AL.size(); i != e; ++i) - mangleTemplateArg(PL.getParam(i), AL[i]); - Out << 'E'; -} - -void CXXNameMangler::mangleTemplateArgs(const TemplateParameterList &PL, - const TemplateArgument *TemplateArgs, - unsigned NumTemplateArgs) { - // <template-args> ::= I <template-arg>+ E - Out << 'I'; - for (unsigned i = 0; i != NumTemplateArgs; ++i) - mangleTemplateArg(PL.getParam(i), TemplateArgs[i]); - Out << 'E'; -} - -void CXXNameMangler::mangleTemplateArg(const NamedDecl *P, - const TemplateArgument &A) { - // <template-arg> ::= <type> # type or template - // ::= X <expression> E # expression - // ::= <expr-primary> # simple expressions - // ::= J <template-arg>* E # argument pack - // ::= sp <expression> # pack expansion of (C++0x) - 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: - Out << 'X'; - mangleExpression(A.getAsExpr()); - Out << 'E'; - break; - case TemplateArgument::Integral: - mangleIntegerLiteral(A.getIntegralType(), *A.getAsIntegral()); - break; - case TemplateArgument::Declaration: { - assert(P && "Missing template parameter for declaration argument"); - // <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. - NamedDecl *D = cast<NamedDecl>(A.getAsDecl()); - const NonTypeTemplateParmDecl *Parameter = cast<NonTypeTemplateParmDecl>(P); - bool compensateMangling = D->isCXXClassMember() && - !Parameter->getType()->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 manged then mangle it as unqualified. - // - // FIXME: The ABI specifies that external names here should have _Z, but - // gcc leaves this off. - if (compensateMangling) - mangle(D, "_Z"); - else - mangle(D, "Z"); - Out << 'E'; - - if (compensateMangling) - Out << 'E'; - - break; - } - - case TemplateArgument::Pack: { - // Note: proposal by Mike Herrick on 12/20/10 - Out << 'J'; - for (TemplateArgument::pack_iterator PA = A.pack_begin(), - PAEnd = A.pack_end(); - PA != PAEnd; ++PA) - mangleTemplateArg(P, *PA); - 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) << '_'; -} - -// <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)); -} - -bool CXXNameMangler::mangleSubstitution(QualType T) { - if (!T.getCVRQualifiers()) { - 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; - if (SeqID == 0) - Out << "S_"; - else { - SeqID--; - - // <seq-id> is encoded in base-36, using digits and upper case letters. - char Buffer[10]; - char *BufferPtr = llvm::array_endof(Buffer); - - if (SeqID == 0) *--BufferPtr = '0'; - - while (SeqID) { - assert(BufferPtr > Buffer && "Buffer overflow!"); - - char c = static_cast<char>(SeqID % 36); - - *--BufferPtr = (c < 10 ? '0' + c : 'A' + c - 10); - SeqID /= 36; - } - - Out << 'S' - << llvm::StringRef(BufferPtr, llvm::array_endof(Buffer)-BufferPtr) - << '_'; - } - - return true; -} - -static bool isCharType(QualType T) { - if (T.isNull()) - return false; - - return T->isSpecificBuiltinType(BuiltinType::Char_S) || - T->isSpecificBuiltinType(BuiltinType::Char_U); -} - -/// isCharSpecialization - 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(SD->getDeclContext())) - 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(TD->getDeclContext())) - 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(SD->getDeclContext())) - 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 (!T.getCVRQualifiers()) { - 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++; -} - -// - -/// \brief 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 MangleContext::mangleName(const NamedDecl *D, - llvm::SmallVectorImpl<char> &Res) { - 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, Res); - return Mangler.mangle(D); -} - -void MangleContext::mangleCXXCtor(const CXXConstructorDecl *D, CXXCtorType Type, - llvm::SmallVectorImpl<char> &Res) { - CXXNameMangler Mangler(*this, Res, D, Type); - Mangler.mangle(D); -} - -void MangleContext::mangleCXXDtor(const CXXDestructorDecl *D, CXXDtorType Type, - llvm::SmallVectorImpl<char> &Res) { - CXXNameMangler Mangler(*this, Res, D, Type); - Mangler.mangle(D); -} - -void MangleContext::mangleBlock(GlobalDecl GD, const BlockDecl *BD, - llvm::SmallVectorImpl<char> &Res) { - MiscNameMangler Mangler(*this, Res); - Mangler.mangleBlock(GD, BD); -} - -void MangleContext::mangleThunk(const CXXMethodDecl *MD, - const ThunkInfo &Thunk, - llvm::SmallVectorImpl<char> &Res) { - // <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, Res); - Mangler.getStream() << "_ZT"; - if (!Thunk.Return.isEmpty()) - Mangler.getStream() << 'c'; - - // Mangle the 'this' pointer adjustment. - Mangler.mangleCallOffset(Thunk.This.NonVirtual, Thunk.This.VCallOffsetOffset); - - // Mangle the return pointer adjustment if there is one. - if (!Thunk.Return.isEmpty()) - Mangler.mangleCallOffset(Thunk.Return.NonVirtual, - Thunk.Return.VBaseOffsetOffset); - - Mangler.mangleFunctionEncoding(MD); -} - -void -MangleContext::mangleCXXDtorThunk(const CXXDestructorDecl *DD, CXXDtorType Type, - const ThisAdjustment &ThisAdjustment, - llvm::SmallVectorImpl<char> &Res) { - // <special-name> ::= T <call-offset> <base encoding> - // # base is the nominal target function of thunk - - CXXNameMangler Mangler(*this, Res, DD, Type); - Mangler.getStream() << "_ZT"; - - // Mangle the 'this' pointer adjustment. - Mangler.mangleCallOffset(ThisAdjustment.NonVirtual, - ThisAdjustment.VCallOffsetOffset); - - Mangler.mangleFunctionEncoding(DD); -} - -/// mangleGuardVariable - Returns the mangled name for a guard variable -/// for the passed in VarDecl. -void MangleContext::mangleItaniumGuardVariable(const VarDecl *D, - llvm::SmallVectorImpl<char> &Res) { - // <special-name> ::= GV <object name> # Guard variable for one-time - // # initialization - CXXNameMangler Mangler(*this, Res); - Mangler.getStream() << "_ZGV"; - Mangler.mangleName(D); -} - -void MangleContext::mangleReferenceTemporary(const VarDecl *D, - llvm::SmallVectorImpl<char> &Res) { - // We match the GCC mangling here. - // <special-name> ::= GR <object name> - CXXNameMangler Mangler(*this, Res); - Mangler.getStream() << "_ZGR"; - Mangler.mangleName(D); -} - -void MangleContext::mangleCXXVTable(const CXXRecordDecl *RD, - llvm::SmallVectorImpl<char> &Res) { - // <special-name> ::= TV <type> # virtual table - CXXNameMangler Mangler(*this, Res); - Mangler.getStream() << "_ZTV"; - Mangler.mangleNameOrStandardSubstitution(RD); -} - -void MangleContext::mangleCXXVTT(const CXXRecordDecl *RD, - llvm::SmallVectorImpl<char> &Res) { - // <special-name> ::= TT <type> # VTT structure - CXXNameMangler Mangler(*this, Res); - Mangler.getStream() << "_ZTT"; - Mangler.mangleNameOrStandardSubstitution(RD); -} - -void MangleContext::mangleCXXCtorVTable(const CXXRecordDecl *RD, int64_t Offset, - const CXXRecordDecl *Type, - llvm::SmallVectorImpl<char> &Res) { - // <special-name> ::= TC <type> <offset number> _ <base type> - CXXNameMangler Mangler(*this, Res); - Mangler.getStream() << "_ZTC"; - Mangler.mangleNameOrStandardSubstitution(RD); - Mangler.getStream() << Offset; - Mangler.getStream() << '_'; - Mangler.mangleNameOrStandardSubstitution(Type); -} - -void MangleContext::mangleCXXRTTI(QualType Ty, - llvm::SmallVectorImpl<char> &Res) { - // <special-name> ::= TI <type> # typeinfo structure - assert(!Ty.hasQualifiers() && "RTTI info cannot have top-level qualifiers"); - CXXNameMangler Mangler(*this, Res); - Mangler.getStream() << "_ZTI"; - Mangler.mangleType(Ty); -} - -void MangleContext::mangleCXXRTTIName(QualType Ty, - llvm::SmallVectorImpl<char> &Res) { - // <special-name> ::= TS <type> # typeinfo name (null terminated byte string) - CXXNameMangler Mangler(*this, Res); - Mangler.getStream() << "_ZTS"; - Mangler.mangleType(Ty); -} diff --git a/clang/lib/CodeGen/Mangle.h b/clang/lib/CodeGen/Mangle.h deleted file mode 100644 index 402a9b8cc35..00000000000 --- a/clang/lib/CodeGen/Mangle.h +++ /dev/null @@ -1,179 +0,0 @@ -//===--- Mangle.h - Mangle C++ Names ----------------------------*- C++ -*-===// -// -// The LLVM Compiler Infrastructure -// -// This file is distributed under the University of Illinois Open Source -// License. See LICENSE.TXT for details. -// -//===----------------------------------------------------------------------===// -// -// Implements C++ name mangling according to the Itanium C++ ABI, -// which is used in GCC 3.2 and newer (and many compilers that are -// ABI-compatible with GCC): -// -// http://www.codesourcery.com/public/cxx-abi/abi.html -// -//===----------------------------------------------------------------------===// - -#ifndef LLVM_CLANG_CODEGEN_MANGLE_H -#define LLVM_CLANG_CODEGEN_MANGLE_H - -#include "CGCXX.h" -#include "GlobalDecl.h" -#include "clang/AST/Type.h" -#include "llvm/ADT/DenseMap.h" -#include "llvm/ADT/StringRef.h" -#include "llvm/ADT/SmallString.h" -#include "llvm/Support/raw_ostream.h" - -namespace clang { - class ASTContext; - class BlockDecl; - class CXXConstructorDecl; - class CXXDestructorDecl; - class CXXMethodDecl; - class FunctionDecl; - class NamedDecl; - class ObjCMethodDecl; - class VarDecl; - -namespace CodeGen { - struct ThisAdjustment; - struct ThunkInfo; - -/// MangleBuffer - a convenient class for storing a name which is -/// either the result of a mangling or is a constant string with -/// external memory ownership. -class MangleBuffer { -public: - void setString(llvm::StringRef Ref) { - String = Ref; - } - - llvm::SmallVectorImpl<char> &getBuffer() { - return Buffer; - } - - llvm::StringRef getString() const { - if (!String.empty()) return String; - return Buffer.str(); - } - - operator llvm::StringRef() const { - return getString(); - } - -private: - llvm::StringRef String; - llvm::SmallString<256> Buffer; -}; - -/// MangleContext - Context for tracking state which persists across multiple -/// calls to the C++ name mangler. -class MangleContext { - ASTContext &Context; - Diagnostic &Diags; - - llvm::DenseMap<const TagDecl *, uint64_t> AnonStructIds; - unsigned Discriminator; - llvm::DenseMap<const NamedDecl*, unsigned> Uniquifier; - llvm::DenseMap<const BlockDecl*, unsigned> GlobalBlockIds; - llvm::DenseMap<const BlockDecl*, unsigned> LocalBlockIds; - -public: - explicit MangleContext(ASTContext &Context, - Diagnostic &Diags) - : Context(Context), Diags(Diags) { } - - virtual ~MangleContext() { } - - ASTContext &getASTContext() const { return Context; } - - Diagnostic &getDiags() const { return Diags; } - - void startNewFunction() { LocalBlockIds.clear(); } - - uint64_t getAnonymousStructId(const TagDecl *TD) { - std::pair<llvm::DenseMap<const TagDecl *, - uint64_t>::iterator, bool> Result = - AnonStructIds.insert(std::make_pair(TD, AnonStructIds.size())); - return Result.first->second; - } - - unsigned getBlockId(const BlockDecl *BD, bool Local) { - llvm::DenseMap<const BlockDecl *, unsigned> &BlockIds - = Local? LocalBlockIds : GlobalBlockIds; - std::pair<llvm::DenseMap<const BlockDecl *, unsigned>::iterator, bool> - Result = BlockIds.insert(std::make_pair(BD, BlockIds.size())); - return Result.first->second; - } - - /// @name Mangler Entry Points - /// @{ - - virtual bool shouldMangleDeclName(const NamedDecl *D); - virtual void mangleName(const NamedDecl *D, llvm::SmallVectorImpl<char> &); - virtual void mangleThunk(const CXXMethodDecl *MD, - const ThunkInfo &Thunk, - llvm::SmallVectorImpl<char> &); - virtual void mangleCXXDtorThunk(const CXXDestructorDecl *DD, CXXDtorType Type, - const ThisAdjustment &ThisAdjustment, - llvm::SmallVectorImpl<char> &); - virtual void mangleReferenceTemporary(const VarDecl *D, - llvm::SmallVectorImpl<char> &); - virtual void mangleCXXVTable(const CXXRecordDecl *RD, - llvm::SmallVectorImpl<char> &); - virtual void mangleCXXVTT(const CXXRecordDecl *RD, - llvm::SmallVectorImpl<char> &); - virtual void mangleCXXCtorVTable(const CXXRecordDecl *RD, int64_t Offset, - const CXXRecordDecl *Type, - llvm::SmallVectorImpl<char> &); - virtual void mangleCXXRTTI(QualType T, llvm::SmallVectorImpl<char> &); - virtual void mangleCXXRTTIName(QualType T, llvm::SmallVectorImpl<char> &); - virtual void mangleCXXCtor(const CXXConstructorDecl *D, CXXCtorType Type, - llvm::SmallVectorImpl<char> &); - virtual void mangleCXXDtor(const CXXDestructorDecl *D, CXXDtorType Type, - llvm::SmallVectorImpl<char> &); - void mangleBlock(GlobalDecl GD, - const BlockDecl *BD, llvm::SmallVectorImpl<char> &); - - // This is pretty lame. - void mangleItaniumGuardVariable(const VarDecl *D, - llvm::SmallVectorImpl<char> &); - - void mangleInitDiscriminator() { - Discriminator = 0; - } - - bool getNextDiscriminator(const NamedDecl *ND, unsigned &disc) { - unsigned &discriminator = Uniquifier[ND]; - if (!discriminator) - discriminator = ++Discriminator; - if (discriminator == 1) - return false; - disc = discriminator-2; - return true; - } - /// @} -}; - -/// MiscNameMangler - Mangles Objective-C method names and blocks. -class MiscNameMangler { - MangleContext &Context; - llvm::raw_svector_ostream Out; - - ASTContext &getASTContext() const { return Context.getASTContext(); } - -public: - MiscNameMangler(MangleContext &C, llvm::SmallVectorImpl<char> &Res); - - llvm::raw_svector_ostream &getStream() { return Out; } - - void mangleBlock(GlobalDecl GD, const BlockDecl *BD); - void mangleObjCMethodName(const ObjCMethodDecl *MD); -}; - -} -} - -#endif diff --git a/clang/lib/CodeGen/MicrosoftCXXABI.cpp b/clang/lib/CodeGen/MicrosoftCXXABI.cpp index 875c66c2a47..ea2e55fcb28 100644 --- a/clang/lib/CodeGen/MicrosoftCXXABI.cpp +++ b/clang/lib/CodeGen/MicrosoftCXXABI.cpp @@ -16,105 +16,17 @@ #include "CGCXXABI.h" #include "CodeGenModule.h" -#include "Mangle.h" -#include "clang/AST/ASTContext.h" #include "clang/AST/Decl.h" #include "clang/AST/DeclCXX.h" -#include "clang/AST/DeclTemplate.h" -#include "clang/AST/ExprCXX.h" -#include "CGVTables.h" using namespace clang; using namespace CodeGen; namespace { -/// MicrosoftCXXNameMangler - Manage the mangling of a single name for the -/// Microsoft Visual C++ ABI. -class MicrosoftCXXNameMangler { - MangleContext &Context; - llvm::raw_svector_ostream Out; - - ASTContext &getASTContext() const { return Context.getASTContext(); } - -public: - MicrosoftCXXNameMangler(MangleContext &C, llvm::SmallVectorImpl<char> &Res) - : Context(C), Out(Res) { } - - void mangle(const NamedDecl *D, llvm::StringRef Prefix = "?"); - void mangleName(const NamedDecl *ND); - void mangleFunctionEncoding(const FunctionDecl *FD); - void mangleVariableEncoding(const VarDecl *VD); - void mangleNumber(int64_t Number); - void mangleType(QualType T); - -private: - void mangleUnqualifiedName(const NamedDecl *ND) { - mangleUnqualifiedName(ND, ND->getDeclName()); - } - void mangleUnqualifiedName(const NamedDecl *ND, DeclarationName Name); - void mangleSourceName(const IdentifierInfo *II); - void manglePostfix(const DeclContext *DC, bool NoFunction=false); - void mangleOperatorName(OverloadedOperatorKind OO); - void mangleQualifiers(Qualifiers Quals, bool IsMember); - - 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(const FunctionType *T, const FunctionDecl *D, - bool IsStructor, bool IsInstMethod); - void mangleType(const ArrayType *T, bool IsGlobal); - void mangleExtraDimensions(QualType T); - void mangleFunctionClass(const FunctionDecl *FD); - void mangleCallingConvention(const FunctionType *T, bool IsInstMethod = false); - void mangleThrowSpecification(const FunctionProtoType *T); - -}; - -/// MicrosoftMangleContext - Overrides the default MangleContext for the -/// Microsoft Visual C++ ABI. -class MicrosoftMangleContext : public MangleContext { -public: - MicrosoftMangleContext(ASTContext &Context, - Diagnostic &Diags) : MangleContext(Context, Diags) { } - virtual bool shouldMangleDeclName(const NamedDecl *D); - virtual void mangleName(const NamedDecl *D, llvm::SmallVectorImpl<char> &); - virtual void mangleThunk(const CXXMethodDecl *MD, - const ThunkInfo &Thunk, - llvm::SmallVectorImpl<char> &); - virtual void mangleCXXDtorThunk(const CXXDestructorDecl *DD, CXXDtorType Type, - const ThisAdjustment &ThisAdjustment, - llvm::SmallVectorImpl<char> &); - virtual void mangleCXXVTable(const CXXRecordDecl *RD, - llvm::SmallVectorImpl<char> &); - virtual void mangleCXXVTT(const CXXRecordDecl *RD, - llvm::SmallVectorImpl<char> &); - virtual void mangleCXXCtorVTable(const CXXRecordDecl *RD, int64_t Offset, - const CXXRecordDecl *Type, - llvm::SmallVectorImpl<char> &); - virtual void mangleCXXRTTI(QualType T, llvm::SmallVectorImpl<char> &); - virtual void mangleCXXRTTIName(QualType T, llvm::SmallVectorImpl<char> &); - virtual void mangleCXXCtor(const CXXConstructorDecl *D, CXXCtorType Type, - llvm::SmallVectorImpl<char> &); - virtual void mangleCXXDtor(const CXXDestructorDecl *D, CXXDtorType Type, - llvm::SmallVectorImpl<char> &); -}; - class MicrosoftCXXABI : public CGCXXABI { - MicrosoftMangleContext MangleCtx; public: - MicrosoftCXXABI(CodeGenModule &CGM) - : CGCXXABI(CGM), MangleCtx(CGM.getContext(), CGM.getDiags()) {} - - MicrosoftMangleContext &getMangleContext() { - return MangleCtx; - } + MicrosoftCXXABI(CodeGenModule &CGM) : CGCXXABI(CGM) {} void BuildConstructorSignature(const CXXConstructorDecl *Ctor, CXXCtorType Type, @@ -147,1074 +59,6 @@ public: } -static bool isInCLinkageSpecification(const Decl *D) { - D = D->getCanonicalDecl(); - for (const DeclContext *DC = D->getDeclContext(); - !DC->isTranslationUnit(); DC = DC->getParent()) { - if (const LinkageSpecDecl *Linkage = dyn_cast<LinkageSpecDecl>(DC)) - return Linkage->getLanguage() == LinkageSpecDecl::lang_c; - } - - return false; -} - -bool MicrosoftMangleContext::shouldMangleDeclName(const NamedDecl *D) { - // In C, functions with no attributes never need to be mangled. Fastpath them. - if (!getASTContext().getLangOptions().CPlusPlus && !D->hasAttrs()) - return false; - - // Any decl can be declared with __asm("foo") on it, and this takes precedence - // over all other naming in the .o file. - if (D->hasAttr<AsmLabelAttr>()) - return true; - - // Clang's "overloadable" attribute extension to C/C++ implies name mangling - // (always) as does passing a C++ member function and a function - // whose name is not a simple identifier. - const FunctionDecl *FD = dyn_cast<FunctionDecl>(D); - if (FD && (FD->hasAttr<OverloadableAttr>() || isa<CXXMethodDecl>(FD) || - !FD->getDeclName().isIdentifier())) - return true; - - // Otherwise, no mangling is done outside C++ mode. - if (!getASTContext().getLangOptions().CPlusPlus) - return false; - - // Variables at global scope with internal linkage are not mangled. - if (!FD) { - const DeclContext *DC = D->getDeclContext(); - if (DC->isTranslationUnit() && D->getLinkage() == InternalLinkage) - return false; - } - - // C functions and "main" are not mangled. - if ((FD && FD->isMain()) || isInCLinkageSpecification(D)) - return false; - - return true; -} - -void MicrosoftCXXNameMangler::mangle(const NamedDecl *D, - llvm::StringRef Prefix) { - // MSVC doesn't mangle C++ names the same way it mangles extern "C" names. - // Therefore it's really important that we don't decorate the - // name with leading underscores or leading/trailing at signs. So, emit a - // asm marker at the start so we get the name right. - Out << '\01'; // LLVM IR Marker for __asm("foo") - - // Any decl can be declared with __asm("foo") on it, and this takes precedence - // over all other naming in the .o file. - if (const AsmLabelAttr *ALA = D->getAttr<AsmLabelAttr>()) { - // If we have an asm name, then we use it as the mangling. - Out << ALA->getLabel(); - return; - } - - // <mangled-name> ::= ? <name> <type-encoding> - Out << Prefix; - mangleName(D); - if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) - mangleFunctionEncoding(FD); - else if (const VarDecl *VD = dyn_cast<VarDecl>(D)) - mangleVariableEncoding(VD); - // TODO: Fields? Can MSVC even mangle them? -} - -void MicrosoftCXXNameMangler::mangleFunctionEncoding(const FunctionDecl *FD) { - // <type-encoding> ::= <function-class> <function-type> - - // Don't mangle in the type if this isn't a decl we should typically mangle. - if (!Context.shouldMangleDeclName(FD)) - return; - - // We should never ever see a FunctionNoProtoType at this point. - // We don't even know how to mangle their types anyway :). - const FunctionProtoType *FT = cast<FunctionProtoType>(FD->getType()); - - bool InStructor = false, InInstMethod = false; - const CXXMethodDecl *MD = dyn_cast<CXXMethodDecl>(FD); - if (MD) { - if (MD->isInstance()) - InInstMethod = true; - if (isa<CXXConstructorDecl>(MD) || isa<CXXDestructorDecl>(MD)) - InStructor = true; - } - - // First, the function class. - mangleFunctionClass(FD); - - mangleType(FT, FD, InStructor, InInstMethod); -} - -void MicrosoftCXXNameMangler::mangleVariableEncoding(const VarDecl *VD) { - // <type-encoding> ::= <storage-class> <variable-type> - // <storage-class> ::= 0 # private static member - // ::= 1 # protected static member - // ::= 2 # public static member - // ::= 3 # global - // ::= 4 # static local - - // The first character in the encoding (after the name) is the storage class. - if (VD->isStaticDataMember()) { - // If it's a static member, it also encodes the access level. - switch (VD->getAccess()) { - default: - case AS_private: Out << '0'; break; - case AS_protected: Out << '1'; break; - case AS_public: Out << '2'; break; - } - } - else if (!VD->isStaticLocal()) - Out << '3'; - else - Out << '4'; - // Now mangle the type. - // <variable-type> ::= <type> <cvr-qualifiers> - // ::= <type> A # pointers, references, arrays - // Pointers and references are odd. The type of 'int * const foo;' gets - // mangled as 'QAHA' instead of 'PAHB', for example. - QualType Ty = VD->getType(); - if (Ty->isPointerType() || Ty->isReferenceType()) { - mangleType(Ty); - Out << 'A'; - } else if (Ty->isArrayType()) { - // Global arrays are funny, too. - mangleType(static_cast<ArrayType *>(Ty.getTypePtr()), true); - Out << 'A'; - } else { - mangleType(Ty.getLocalUnqualifiedType()); - mangleQualifiers(Ty.getLocalQualifiers(), false); - } -} - -void MicrosoftCXXNameMangler::mangleName(const NamedDecl *ND) { - // <name> ::= <unscoped-name> {[<named-scope>]+ | [<nested-name>]}? @ - const DeclContext *DC = ND->getDeclContext(); - - // Always start with the unqualified name. - mangleUnqualifiedName(ND); - - // If this is an extern variable declared locally, the relevant DeclContext - // is that of the containing namespace, or the translation unit. - if (isa<FunctionDecl>(DC) && ND->hasLinkage()) - while (!DC->isNamespace() && !DC->isTranslationUnit()) - DC = DC->getParent(); - - manglePostfix(DC); - - // Terminate the whole name with an '@'. - Out << '@'; -} - -void MicrosoftCXXNameMangler::mangleNumber(int64_t Number) { - // <number> ::= [?] <decimal digit> # <= 9 - // ::= [?] <hex digit>+ @ # > 9; A = 0, B = 1, etc... - if (Number < 0) { - Out << '?'; - Number = -Number; - } - if (Number >= 1 && Number <= 10) { - Out << Number-1; - } else { - // We have to build up the encoding in reverse order, so it will come - // out right when we write it out. - char Encoding[16]; - char *EndPtr = Encoding+sizeof(Encoding); - char *CurPtr = EndPtr; - while (Number) { - *--CurPtr = 'A' + (Number % 16); - Number /= 16; - } - Out.write(CurPtr, EndPtr-CurPtr); - Out << '@'; - } -} - -void -MicrosoftCXXNameMangler::mangleUnqualifiedName(const NamedDecl *ND, - DeclarationName Name) { - // <unqualified-name> ::= <operator-name> - // ::= <ctor-dtor-name> - // ::= <source-name> - switch (Name.getNameKind()) { - case DeclarationName::Identifier: { - if (const IdentifierInfo *II = Name.getAsIdentifierInfo()) { - mangleSourceName(II); - 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()) { - Out << "?A"; - break; - } - } - - // We must have an anonymous struct. - const TagDecl *TD = cast<TagDecl>(ND); - if (const TypedefDecl *D = TD->getTypedefForAnonDecl()) { - 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()); - break; - } - - // When VC encounters an anonymous type with no tag and no typedef, - // it literally emits '<unnamed-tag>'. - Out << "<unnamed-tag>"; - break; - } - - case DeclarationName::ObjCZeroArgSelector: - case DeclarationName::ObjCOneArgSelector: - case DeclarationName::ObjCMultiArgSelector: - assert(false && "Can't mangle Objective-C selector names here!"); - break; - - case DeclarationName::CXXConstructorName: - assert(false && "Can't mangle constructors yet!"); - break; - - case DeclarationName::CXXDestructorName: - assert(false && "Can't mangle destructors yet!"); - break; - - case DeclarationName::CXXConversionFunctionName: - // <operator-name> ::= ?B # (cast) - // The target type is encoded as the return type. - Out << "?B"; - break; - - case DeclarationName::CXXOperatorName: - mangleOperatorName(Name.getCXXOverloadedOperator()); - break; - - case DeclarationName::CXXLiteralOperatorName: - // FIXME: Was this added in VS2010? Does MS even know how to mangle this? - assert(false && "Don't know how to mangle literal operators yet!"); - break; - - case DeclarationName::CXXUsingDirective: - assert(false && "Can't mangle a using directive name!"); - break; - } -} - -void MicrosoftCXXNameMangler::manglePostfix(const DeclContext *DC, - bool NoFunction) { - // <postfix> ::= <unqualified-name> [<postfix>] - // ::= <template-postfix> <template-args> [<postfix>] - // ::= <template-param> - // ::= <substitution> [<postfix>] - - if (!DC) return; - - while (isa<LinkageSpecDecl>(DC)) - DC = DC->getParent(); - - if (DC->isTranslationUnit()) - return; - - if (const BlockDecl *BD = dyn_cast<BlockDecl>(DC)) { - llvm::SmallString<64> Name; - Context.mangleBlock(GlobalDecl(), BD, Name); - Out << Name << '@'; - return manglePostfix(DC->getParent(), NoFunction); - } - - if (NoFunction && (isa<FunctionDecl>(DC) || isa<ObjCMethodDecl>(DC))) - return; - else if (const ObjCMethodDecl *Method = dyn_cast<ObjCMethodDecl>(DC)) - mangleObjCMethodName(Method); - else { - mangleUnqualifiedName(cast<NamedDecl>(DC)); - manglePostfix(DC->getParent(), NoFunction); - } -} - -void MicrosoftCXXNameMangler::mangleOperatorName(OverloadedOperatorKind OO) { - switch (OO) { - // ?0 # constructor - // ?1 # destructor - // <operator-name> ::= ?2 # new - case OO_New: Out << "?2"; break; - // <operator-name> ::= ?3 # delete - case OO_Delete: Out << "?3"; break; - // <operator-name> ::= ?4 # = - case OO_Equal: Out << "?4"; break; - // <operator-name> ::= ?5 # >> - case OO_GreaterGreater: Out << "?5"; break; - // <operator-name> ::= ?6 # << - case OO_LessLess: Out << "?6"; break; - // <operator-name> ::= ?7 # ! - case OO_Exclaim: Out << "?7"; break; - // <operator-name> ::= ?8 # == - case OO_EqualEqual: Out << "?8"; break; - // <operator-name> ::= ?9 # != - case OO_ExclaimEqual: Out << "?9"; break; - // <operator-name> ::= ?A # [] - case OO_Subscript: Out << "?A"; break; - // ?B # conversion - // <operator-name> ::= ?C # -> - case OO_Arrow: Out << "?C"; break; - // <operator-name> ::= ?D # * - case OO_Star: Out << "?D"; break; - // <operator-name> ::= ?E # ++ - case OO_PlusPlus: Out << "?E"; break; - // <operator-name> ::= ?F # -- - case OO_MinusMinus: Out << "?F"; break; - // <operator-name> ::= ?G # - - case OO_Minus: Out << "?G"; break; - // <operator-name> ::= ?H # + - case OO_Plus: Out << "?H"; break; - // <operator-name> ::= ?I # & - case OO_Amp: Out << "?I"; break; - // <operator-name> ::= ?J # ->* - case OO_ArrowStar: Out << "?J"; break; - // <operator-name> ::= ?K # / - case OO_Slash: Out << "?K"; break; - // <operator-name> ::= ?L # % - case OO_Percent: Out << "?L"; break; - // <operator-name> ::= ?M # < - case OO_Less: Out << "?M"; break; - // <operator-name> ::= ?N # <= - case OO_LessEqual: Out << "?N"; break; - // <operator-name> ::= ?O # > - case OO_Greater: Out << "?O"; break; - // <operator-name> ::= ?P # >= - case OO_GreaterEqual: Out << "?P"; break; - // <operator-name> ::= ?Q # , - case OO_Comma: Out << "?Q"; break; - // <operator-name> ::= ?R # () - case OO_Call: Out << "?R"; break; - // <operator-name> ::= ?S # ~ - case OO_Tilde: Out << "?S"; break; - // <operator-name> ::= ?T # ^ - case OO_Caret: Out << "?T"; break; - // <operator-name> ::= ?U # | - case OO_Pipe: Out << "?U"; break; - // <operator-name> ::= ?V # && - case OO_AmpAmp: Out << "?V"; break; - // <operator-name> ::= ?W # || - case OO_PipePipe: Out << "?W"; break; - // <operator-name> ::= ?X # *= - case OO_StarEqual: Out << "?X"; break; - // <operator-name> ::= ?Y # += - case OO_PlusEqual: Out << "?Y"; break; - // <operator-name> ::= ?Z # -= - case OO_MinusEqual: Out << "?Z"; break; - // <operator-name> ::= ?_0 # /= - case OO_SlashEqual: Out << "?_0"; break; - // <operator-name> ::= ?_1 # %= - case OO_PercentEqual: Out << "?_1"; break; - // <operator-name> ::= ?_2 # >>= - case OO_GreaterGreaterEqual: Out << "?_2"; break; - // <operator-name> ::= ?_3 # <<= - case OO_LessLessEqual: Out << "?_3"; break; - // <operator-name> ::= ?_4 # &= - case OO_AmpEqual: Out << "?_4"; break; - // <operator-name> ::= ?_5 # |= - case OO_PipeEqual: Out << "?_5"; break; - // <operator-name> ::= ?_6 # ^= - case OO_CaretEqual: Out << "?_6"; break; - // ?_7 # vftable - // ?_8 # vbtable - // ?_9 # vcall - // ?_A # typeof - // ?_B # local static guard - // ?_C # string - // ?_D # vbase destructor - // ?_E # vector deleting destructor - // ?_F # default constructor closure - // ?_G # scalar deleting destructor - // ?_H # vector constructor iterator - // ?_I # vector destructor iterator - // ?_J # vector vbase constructor iterator - // ?_K # virtual displacement map - // ?_L # eh vector constructor iterator - // ?_M # eh vector destructor iterator - // ?_N # eh vector vbase constructor iterator - // ?_O # copy constructor closure - // ?_P<name> # udt returning <name> - // ?_Q # <unknown> - // ?_R0 # RTTI Type Descriptor - // ?_R1 # RTTI Base Class Descriptor at (a,b,c,d) - // ?_R2 # RTTI Base Class Array - // ?_R3 # RTTI Class Hierarchy Descriptor - // ?_R4 # RTTI Complete Object Locator - // ?_S # local vftable - // ?_T # local vftable constructor closure - // <operator-name> ::= ?_U # new[] - case OO_Array_New: Out << "?_U"; break; - // <operator-name> ::= ?_V # delete[] - case OO_Array_Delete: Out << "?_V"; break; - - case OO_Conditional: - assert(false && "Don't know how to mangle ?:"); - break; - - case OO_None: - case NUM_OVERLOADED_OPERATORS: - assert(false && "Not an overloaded operator"); - break; - } -} - -void MicrosoftCXXNameMangler::mangleSourceName(const IdentifierInfo *II) { - // <source name> ::= <identifier> @ - Out << II->getName() << '@'; -} - -void MicrosoftCXXNameMangler::mangleObjCMethodName(const ObjCMethodDecl *MD) { - llvm::SmallString<64> Buffer; - MiscNameMangler(Context, Buffer).mangleObjCMethodName(MD); - Out << Buffer; -} - -void MicrosoftCXXNameMangler::mangleQualifiers(Qualifiers Quals, - bool IsMember) { - // <cvr-qualifiers> ::= [E] [F] [I] <base-cvr-qualifiers> - // 'E' means __ptr64 (32-bit only); 'F' means __unaligned (32/64-bit only); - // 'I' means __restrict (32/64-bit). - // Note that the MSVC __restrict keyword isn't the same as the C99 restrict - // keyword! - // <base-cvr-qualifiers> ::= A # near - // ::= B # near const - // ::= C # near volatile - // ::= D # near const volatile - // ::= E # far (16-bit) - // ::= F # far const (16-bit) - // ::= G # far volatile (16-bit) - // ::= H # far const volatile (16-bit) - // ::= I # huge (16-bit) - // ::= J # huge const (16-bit) - // ::= K # huge volatile (16-bit) - // ::= L # huge const volatile (16-bit) - // ::= M <basis> # based - // ::= N <basis> # based const - // ::= O <basis> # based volatile - // ::= P <basis> # based const volatile - // ::= Q # near member - // ::= R # near const member - // ::= S # near volatile member - // ::= T # near const volatile member - // ::= U # far member (16-bit) - // ::= V # far const member (16-bit) - // ::= W # far volatile member (16-bit) - // ::= X # far const volatile member (16-bit) - // ::= Y # huge member (16-bit) - // ::= Z # huge const member (16-bit) - // ::= 0 # huge volatile member (16-bit) - // ::= 1 # huge const volatile member (16-bit) - // ::= 2 <basis> # based member - // ::= 3 <basis> # based const member - // ::= 4 <basis> # based volatile member - // ::= 5 <basis> # based const volatile member - // ::= 6 # near function (pointers only) - // ::= 7 # far function (pointers only) - // ::= 8 # near method (pointers only) - // ::= 9 # far method (pointers only) - // ::= _A <basis> # based function (pointers only) - // ::= _B <basis> # based function (far?) (pointers only) - // ::= _C <basis> # based method (pointers only) - // ::= _D <basis> # based method (far?) (pointers only) - // ::= _E # block (Clang) - // <basis> ::= 0 # __based(void) - // ::= 1 # __based(segment)? - // ::= 2 <name> # __based(name) - // ::= 3 # ? - // ::= 4 # ? - // ::= 5 # not really based - if (!IsMember) { - if (!Quals.hasVolatile()) { - if (!Quals.hasConst()) - Out << 'A'; - else - Out << 'B'; - } else { - if (!Quals.hasConst()) - Out << 'C'; - else - Out << 'D'; - } - } else { - if (!Quals.hasVolatile()) { - if (!Quals.hasConst()) - Out << 'Q'; - else - Out << 'R'; - } else { - if (!Quals.hasConst()) - Out << 'S'; - else - Out << 'T'; - } - } - - // FIXME: For now, just drop all extension qualifiers on the floor. -} - -void MicrosoftCXXNameMangler::mangleType(QualType T) { - // Only operate on the canonical type! - T = getASTContext().getCanonicalType(T); - - Qualifiers Quals = T.getLocalQualifiers(); - if (Quals) { - // We have to mangle these now, while we still have enough information. - // <pointer-cvr-qualifiers> ::= P # pointer - // ::= Q # const pointer - // ::= R # volatile pointer - // ::= S # const volatile pointer - if (T->isAnyPointerType() || T->isMemberPointerType() || - T->isBlockPointerType()) { - if (!Quals.hasVolatile()) - Out << 'Q'; - else { - if (!Quals.hasConst()) - Out << 'R'; - else - Out << 'S'; - } - } else - // Just emit qualifiers like normal. - // NB: When we mangle a pointer/reference type, and the pointee - // type has no qualifiers, the lack of qualifier gets mangled - // in there. - mangleQualifiers(Quals, false); - } else if (T->isAnyPointerType() || T->isMemberPointerType() || - T->isBlockPointerType()) { - Out << 'P'; - } - switch (T->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*>(T.getTypePtr())); \ -break; -#include "clang/AST/TypeNodes.def" - } -} - -void MicrosoftCXXNameMangler::mangleType(const BuiltinType *T) { - // <type> ::= <builtin-type> - // <builtin-type> ::= X # void - // ::= C # signed char - // ::= D # char - // ::= E # unsigned char - // ::= F # short - // ::= G # unsigned short (or wchar_t if it's not a builtin) - // ::= H # int - // ::= I # unsigned int - // ::= J # long - // ::= K # unsigned long - // L # <none> - // ::= M # float - // ::= N # double - // ::= O # long double (__float80 is mangled differently) - // ::= _D # __int8 (yup, it's a distinct type in MSVC) - // ::= _E # unsigned __int8 - // ::= _F # __int16 - // ::= _G # unsigned __int16 - // ::= _H # __int32 - // ::= _I # unsigned __int32 - // ::= _J # long long, __int64 - // ::= _K # unsigned long long, __int64 - // ::= _L # __int128 - // ::= _M # unsigned __int128 - // ::= _N # bool - // _O # <array in parameter> - // ::= _T # __float80 (Intel) - // ::= _W # wchar_t - // ::= _Z # __float80 (Digital Mars) - switch (T->getKind()) { - case BuiltinType::Void: Out << 'X'; break; - case BuiltinType::SChar: Out << 'C'; break; - case BuiltinType::Char_U: case BuiltinType::Char_S: Out << 'D'; break; - case BuiltinType::UChar: Out << 'E'; break; - case BuiltinType::Short: Out << 'F'; break; - case BuiltinType::UShort: Out << 'G'; break; - case BuiltinType::Int: Out << 'H'; break; - case BuiltinType::UInt: Out << 'I'; break; - case BuiltinType::Long: Out << 'J'; break; - case BuiltinType::ULong: Out << 'K'; break; - case BuiltinType::Float: Out << 'M'; break; - case BuiltinType::Double: Out << 'N'; break; - // TODO: Determine size and mangle accordingly - case BuiltinType::LongDouble: Out << 'O'; break; - // TODO: __int8 and friends - case BuiltinType::LongLong: Out << "_J"; break; - case BuiltinType::ULongLong: Out << "_K"; break; - case BuiltinType::Int128: Out << "_L"; break; - case BuiltinType::UInt128: Out << "_M"; break; - case BuiltinType::Bool: Out << "_N"; break; - case BuiltinType::WChar_S: - case BuiltinType::WChar_U: Out << "_W"; break; - - case BuiltinType::Overload: - case BuiltinType::Dependent: - assert(false && - "Overloaded and dependent types shouldn't get to name mangling"); - break; - case BuiltinType::UndeducedAuto: - assert(0 && "Should not see undeduced auto here"); - break; - case BuiltinType::ObjCId: Out << "PAUobjc_object@@"; break; - case BuiltinType::ObjCClass: Out << "PAUobjc_class@@"; break; - case BuiltinType::ObjCSel: Out << "PAUobjc_selector@@"; break; - - case BuiltinType::Char16: - case BuiltinType::Char32: - case BuiltinType::NullPtr: - assert(false && "Don't know how to mangle this type"); - break; - } -} - -// <type> ::= <function-type> -void MicrosoftCXXNameMangler::mangleType(const FunctionProtoType *T) { - // Structors only appear in decls, so at this point we know it's not a - // structor type. - // I'll probably have mangleType(MemberPointerType) call the mangleType() - // method directly. - mangleType(T, NULL, false, false); -} -void MicrosoftCXXNameMangler::mangleType(const FunctionNoProtoType *T) { - llvm_unreachable("Can't mangle K&R function prototypes"); -} - -void MicrosoftCXXNameMangler::mangleType(const FunctionType *T, - const FunctionDecl *D, - bool IsStructor, - bool IsInstMethod) { - // <function-type> ::= <this-cvr-qualifiers> <calling-convention> - // <return-type> <argument-list> <throw-spec> - const FunctionProtoType *Proto = cast<FunctionProtoType>(T); - - // If this is a C++ instance method, mangle the CVR qualifiers for the - // this pointer. - if (IsInstMethod) - mangleQualifiers(Qualifiers::fromCVRMask(Proto->getTypeQuals()), false); - - mangleCallingConvention(T, IsInstMethod); - - // <return-type> ::= <type> - // ::= @ # structors (they have no declared return type) - if (IsStructor) - Out << '@'; - else - mangleType(Proto->getResultType()); - - // <argument-list> ::= X # void - // ::= <type>+ @ - // ::= <type>* Z # varargs - if (Proto->getNumArgs() == 0 && !Proto->isVariadic()) { - Out << 'X'; - } else { - if (D) { - // If we got a decl, use the "types-as-written" to make sure arrays - // get mangled right. - for (FunctionDecl::param_const_iterator Parm = D->param_begin(), - ParmEnd = D->param_end(); - Parm != ParmEnd; ++Parm) - mangleType((*Parm)->getTypeSourceInfo()->getType()); - } else { - for (FunctionProtoType::arg_type_iterator Arg = Proto->arg_type_begin(), - ArgEnd = Proto->arg_type_end(); - Arg != ArgEnd; ++Arg) - mangleType(*Arg); - } - // <builtin-type> ::= Z # ellipsis - if (Proto->isVariadic()) - Out << 'Z'; - else - Out << '@'; - } - - mangleThrowSpecification(Proto); -} - -void MicrosoftCXXNameMangler::mangleFunctionClass(const FunctionDecl *FD) { - // <function-class> ::= A # private: near - // ::= B # private: far - // ::= C # private: static near - // ::= D # private: static far - // ::= E # private: virtual near - // ::= F # private: virtual far - // ::= G # private: thunk near - // ::= H # private: thunk far - // ::= I # protected: near - // ::= J # protected: far - // ::= K # protected: static near - // ::= L # protected: static far - // ::= M # protected: virtual near - // ::= N # protected: virtual far - // ::= O # protected: thunk near - // ::= P # protected: thunk far - // ::= Q # public: near - // ::= R # public: far - // ::= S # public: static near - // ::= T # public: static far - // ::= U # public: virtual near - // ::= V # public: virtual far - // ::= W # public: thunk near - // ::= X # public: thunk far - // ::= Y # global near - // ::= Z # global far - if (const CXXMethodDecl *MD = dyn_cast<CXXMethodDecl>(FD)) { - switch (MD->getAccess()) { - default: - case AS_private: - if (MD->isStatic()) - Out << 'C'; - else if (MD->isVirtual()) - Out << 'E'; - else - Out << 'A'; - break; - case AS_protected: - if (MD->isStatic()) - Out << 'K'; - else if (MD->isVirtual()) - Out << 'M'; - else - Out << 'I'; - break; - case AS_public: - if (MD->isStatic()) - Out << 'S'; - else if (MD->isVirtual()) - Out << 'U'; - else - Out << 'Q'; - } - } else - Out << 'Y'; -} -void MicrosoftCXXNameMangler::mangleCallingConvention(const FunctionType *T, - bool IsInstMethod) { - // <calling-convention> ::= A # __cdecl - // ::= B # __export __cdecl - // ::= C # __pascal - // ::= D # __export __pascal - // ::= E # __thiscall - // ::= F # __export __thiscall - // ::= G # __stdcall - // ::= H # __export __stdcall - // ::= I # __fastcall - // ::= J # __export __fastcall - // The 'export' calling conventions are from a bygone era - // (*cough*Win16*cough*) when functions were declared for export with - // that keyword. (It didn't actually export them, it just made them so - // that they could be in a DLL and somebody from another module could call - // them.) - CallingConv CC = T->getCallConv(); - if (CC == CC_Default) - CC = IsInstMethod ? getASTContext().getDefaultMethodCallConv() : CC_C; - switch (CC) { - case CC_Default: - case CC_C: Out << 'A'; break; - case CC_X86Pascal: Out << 'C'; break; - case CC_X86ThisCall: Out << 'E'; break; - case CC_X86StdCall: Out << 'G'; break; - case CC_X86FastCall: Out << 'I'; break; - } -} -void MicrosoftCXXNameMangler::mangleThrowSpecification( - const FunctionProtoType *FT) { - // <throw-spec> ::= Z # throw(...) (default) - // ::= @ # throw() or __declspec/__attribute__((nothrow)) - // ::= <type>+ - // NOTE: Since the Microsoft compiler ignores throw specifications, they are - // all actually mangled as 'Z'. (They're ignored because their associated - // functionality isn't implemented, and probably never will be.) - Out << 'Z'; -} - -void MicrosoftCXXNameMangler::mangleType(const UnresolvedUsingType *T) { - assert(false && "Don't know how to mangle UnresolvedUsingTypes yet!"); -} - -// <type> ::= <union-type> | <struct-type> | <class-type> | <enum-type> -// <union-type> ::= T <name> -// <struct-type> ::= U <name> -// <class-type> ::= V <name> -// <enum-type> ::= W <size> <name> -void MicrosoftCXXNameMangler::mangleType(const EnumType *T) { - mangleType(static_cast<const TagType*>(T)); -} -void MicrosoftCXXNameMangler::mangleType(const RecordType *T) { - mangleType(static_cast<const TagType*>(T)); -} -void MicrosoftCXXNameMangler::mangleType(const TagType *T) { - switch (T->getDecl()->getTagKind()) { - case TTK_Union: - Out << 'T'; - break; - case TTK_Struct: - Out << 'U'; - break; - case TTK_Class: - Out << 'V'; - break; - case TTK_Enum: - Out << 'W'; - Out << getASTContext().getTypeSizeInChars( - cast<EnumDecl>(T->getDecl())->getIntegerType()).getQuantity(); - break; - } - mangleName(T->getDecl()); -} - -// <type> ::= <array-type> -// <array-type> ::= P <cvr-qualifiers> [Y <dimension-count> <dimension>+] -// <element-type> # as global -// ::= Q <cvr-qualifiers> [Y <dimension-count> <dimension>+] -// <element-type> # as param -// It's supposed to be the other way around, but for some strange reason, it -// isn't. Today this behavior is retained for the sole purpose of backwards -// compatibility. -void MicrosoftCXXNameMangler::mangleType(const ArrayType *T, bool IsGlobal) { - // This isn't a recursive mangling, so now we have to do it all in this - // one call. - if (IsGlobal) - Out << 'P'; - else - Out << 'Q'; - mangleExtraDimensions(T->getElementType()); -} -void MicrosoftCXXNameMangler::mangleType(const ConstantArrayType *T) { - mangleType(static_cast<const ArrayType *>(T), false); -} -void MicrosoftCXXNameMangler::mangleType(const VariableArrayType *T) { - mangleType(static_cast<const ArrayType *>(T), false); -} -void MicrosoftCXXNameMangler::mangleType(const DependentSizedArrayType *T) { - mangleType(static_cast<const ArrayType *>(T), false); -} -void MicrosoftCXXNameMangler::mangleType(const IncompleteArrayType *T) { - mangleType(static_cast<const ArrayType *>(T), false); -} -void MicrosoftCXXNameMangler::mangleExtraDimensions(QualType ElementTy) { - llvm::SmallVector<llvm::APInt, 3> Dimensions; - for (;;) { - if (ElementTy->isConstantArrayType()) { - const ConstantArrayType *CAT = - static_cast<const ConstantArrayType *>(ElementTy.getTypePtr()); - Dimensions.push_back(CAT->getSize()); - ElementTy = CAT->getElementType(); - } else if (ElementTy->isVariableArrayType()) { - assert(false && "Don't know how to mangle VLAs!"); - } else if (ElementTy->isDependentSizedArrayType()) { - // The dependent expression has to be folded into a constant (TODO). - assert(false && "Don't know how to mangle dependent-sized arrays!"); - } else if (ElementTy->isIncompleteArrayType()) continue; - else break; - } - mangleQualifiers(ElementTy.getQualifiers(), false); - // If there are any additional dimensions, mangle them now. - if (Dimensions.size() > 0) { - Out << 'Y'; - // <dimension-count> ::= <number> # number of extra dimensions - mangleNumber(Dimensions.size()); - for (unsigned Dim = 0; Dim < Dimensions.size(); ++Dim) { - mangleNumber(Dimensions[Dim].getLimitedValue()); - } - } - mangleType(ElementTy.getLocalUnqualifiedType()); -} - -// <type> ::= <pointer-to-member-type> -// <pointer-to-member-type> ::= <pointer-cvr-qualifiers> <cvr-qualifiers> -// <class name> <type> -void MicrosoftCXXNameMangler::mangleType(const MemberPointerType *T) { - QualType PointeeType = T->getPointeeType(); - if (const FunctionProtoType *FPT = dyn_cast<FunctionProtoType>(PointeeType)) { - Out << '8'; - mangleName(cast<RecordType>(T->getClass())->getDecl()); - mangleType(FPT, NULL, false, true); - } else { - mangleQualifiers(PointeeType.getQualifiers(), true); - mangleName(cast<RecordType>(T->getClass())->getDecl()); - mangleType(PointeeType.getLocalUnqualifiedType()); - } -} - -void MicrosoftCXXNameMangler::mangleType(const TemplateTypeParmType *T) { - assert(false && "Don't know how to mangle TemplateTypeParmTypes yet!"); -} - -// <type> ::= <pointer-type> -// <pointer-type> ::= <pointer-cvr-qualifiers> <cvr-qualifiers> <type> -void MicrosoftCXXNameMangler::mangleType(const PointerType *T) { - QualType PointeeTy = T->getPointeeType(); - if (PointeeTy->isArrayType()) { - // Pointers to arrays are mangled like arrays. - mangleExtraDimensions(T->getPointeeType()); - } else if (PointeeTy->isFunctionType()) { - // Function pointers are special. - Out << '6'; - mangleType(static_cast<const FunctionType *>(PointeeTy.getTypePtr()), - NULL, false, false); - } else { - if (!PointeeTy.hasQualifiers()) - // Lack of qualifiers is mangled as 'A'. - Out << 'A'; - mangleType(PointeeTy); - } -} -void MicrosoftCXXNameMangler::mangleType(const ObjCObjectPointerType *T) { - // Object pointers never have qualifiers. - Out << 'A'; - mangleType(T->getPointeeType()); -} - -// <type> ::= <reference-type> -// <reference-type> ::= A <cvr-qualifiers> <type> -void MicrosoftCXXNameMangler::mangleType(const LValueReferenceType *T) { - Out << 'A'; - QualType PointeeTy = T->getPointeeType(); - if (!PointeeTy.hasQualifiers()) - // Lack of qualifiers is mangled as 'A'. - Out << 'A'; - mangleType(PointeeTy); -} - -void MicrosoftCXXNameMangler::mangleType(const RValueReferenceType *T) { - assert(false && "Don't know how to mangle RValueReferenceTypes yet!"); -} - -void MicrosoftCXXNameMangler::mangleType(const ComplexType *T) { - assert(false && "Don't know how to mangle ComplexTypes yet!"); -} - -void MicrosoftCXXNameMangler::mangleType(const VectorType *T) { - assert(false && "Don't know how to mangle VectorTypes yet!"); -} -void MicrosoftCXXNameMangler::mangleType(const ExtVectorType *T) { - assert(false && "Don't know how to mangle ExtVectorTypes yet!"); -} -void MicrosoftCXXNameMangler::mangleType(const DependentSizedExtVectorType *T) { - assert(false && "Don't know how to mangle DependentSizedExtVectorTypes yet!"); -} - -void MicrosoftCXXNameMangler::mangleType(const ObjCInterfaceType *T) { - // ObjC interfaces have structs underlying them. - Out << 'U'; - mangleName(T->getDecl()); -} - -void MicrosoftCXXNameMangler::mangleType(const ObjCObjectType *T) { - // We don't allow overloading by different protocol qualification, - // so mangling them isn't necessary. - mangleType(T->getBaseType()); -} - -void MicrosoftCXXNameMangler::mangleType(const BlockPointerType *T) { - Out << "_E"; - mangleType(T->getPointeeType()); -} - -void MicrosoftCXXNameMangler::mangleType(const InjectedClassNameType *T) { - assert(false && "Don't know how to mangle InjectedClassNameTypes yet!"); -} - -void MicrosoftCXXNameMangler::mangleType(const TemplateSpecializationType *T) { - assert(false && "Don't know how to mangle TemplateSpecializationTypes yet!"); -} - -void MicrosoftCXXNameMangler::mangleType(const DependentNameType *T) { - assert(false && "Don't know how to mangle DependentNameTypes yet!"); -} - -void MicrosoftCXXNameMangler::mangleType( - const DependentTemplateSpecializationType *T) { - assert(false && - "Don't know how to mangle DependentTemplateSpecializationTypes yet!"); -} - -void MicrosoftCXXNameMangler::mangleType(const PackExpansionType *T) { - assert(false && "Don't know how to mangle PackExpansionTypes yet!"); -} - -void MicrosoftCXXNameMangler::mangleType(const TypeOfType *T) { - assert(false && "Don't know how to mangle TypeOfTypes yet!"); -} - -void MicrosoftCXXNameMangler::mangleType(const TypeOfExprType *T) { - assert(false && "Don't know how to mangle TypeOfExprTypes yet!"); -} - -void MicrosoftCXXNameMangler::mangleType(const DecltypeType *T) { - assert(false && "Don't know how to mangle DecltypeTypes yet!"); -} - -void MicrosoftMangleContext::mangleName(const NamedDecl *D, - llvm::SmallVectorImpl<char> &Name) { - 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"); - - MicrosoftCXXNameMangler Mangler(*this, Name); - return Mangler.mangle(D); -} -void MicrosoftMangleContext::mangleThunk(const CXXMethodDecl *MD, - const ThunkInfo &Thunk, - llvm::SmallVectorImpl<char> &) { - assert(false && "Can't yet mangle thunks!"); -} -void MicrosoftMangleContext::mangleCXXDtorThunk(const CXXDestructorDecl *DD, - CXXDtorType Type, - const ThisAdjustment &, - llvm::SmallVectorImpl<char> &) { - assert(false && "Can't yet mangle destructor thunks!"); -} -void MicrosoftMangleContext::mangleCXXVTable(const CXXRecordDecl *RD, - llvm::SmallVectorImpl<char> &) { - assert(false && "Can't yet mangle virtual tables!"); -} -void MicrosoftMangleContext::mangleCXXVTT(const CXXRecordDecl *RD, - llvm::SmallVectorImpl<char> &) { - llvm_unreachable("The MS C++ ABI does not have virtual table tables!"); -} -void MicrosoftMangleContext::mangleCXXCtorVTable(const CXXRecordDecl *RD, - int64_t Offset, - const CXXRecordDecl *Type, - llvm::SmallVectorImpl<char> &) { - llvm_unreachable("The MS C++ ABI does not have constructor vtables!"); -} -void MicrosoftMangleContext::mangleCXXRTTI(QualType T, - llvm::SmallVectorImpl<char> &) { - assert(false && "Can't yet mangle RTTI!"); -} -void MicrosoftMangleContext::mangleCXXRTTIName(QualType T, - llvm::SmallVectorImpl<char> &) { - assert(false && "Can't yet mangle RTTI names!"); -} -void MicrosoftMangleContext::mangleCXXCtor(const CXXConstructorDecl *D, - CXXCtorType Type, - llvm::SmallVectorImpl<char> &) { - assert(false && "Can't yet mangle constructors!"); -} -void MicrosoftMangleContext::mangleCXXDtor(const CXXDestructorDecl *D, - CXXDtorType Type, - llvm::SmallVectorImpl<char> &) { - assert(false && "Can't yet mangle destructors!"); -} - CGCXXABI *clang::CodeGen::CreateMicrosoftCXXABI(CodeGenModule &CGM) { return new MicrosoftCXXABI(CGM); } |