ItaniumCXXABI.cpp File Reference

#include "CGCXXABI.h"
#include "CGCleanup.h"
#include "CGRecordLayout.h"
#include "CGVTables.h"
#include "CodeGenFunction.h"
#include "CodeGenModule.h"
#include "ConstantEmitter.h"
#include "TargetInfo.h"
#include "clang/AST/Attr.h"
#include "clang/AST/Mangle.h"
#include "clang/AST/StmtCXX.h"
#include "clang/AST/Type.h"
#include "clang/CodeGen/ConstantInitBuilder.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/IR/GlobalValue.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/Intrinsics.h"
#include "llvm/IR/Value.h"
#include "llvm/Support/ScopedPrinter.h"
#include <optional>
#include "clang/Basic/OpenCLImageTypes.def"
#include "clang/Basic/OpenCLExtensionTypes.def"
#include "clang/Basic/AArch64SVEACLETypes.def"
#include "clang/Basic/PPCTypes.def"
#include "clang/Basic/RISCVVTypes.def"
#include "clang/Basic/WebAssemblyReferenceTypes.def"
#include "clang/Basic/AMDGPUTypes.def"
#include "clang/Basic/HLSLIntangibleTypes.def"
#include "clang/AST/BuiltinTypes.def"
#include "clang/AST/TypeNodes.inc"

Go to the source code of this file.

Macros
#define	IMAGE_TYPE(ImgType, Id, SingletonId, Access, Suffix)    case BuiltinType::Id:
#define	EXT_OPAQUE_TYPE(ExtType, Id, Ext)    case BuiltinType::Id:
#define	SVE_TYPE(Name, Id, SingletonId)    case BuiltinType::Id:
#define	PPC_VECTOR_TYPE(Name, Id, Size)    case BuiltinType::Id:
#define	RVV_TYPE(Name, Id, SingletonId)   case BuiltinType::Id:
#define	WASM_TYPE(Name, Id, SingletonId)   case BuiltinType::Id:
#define	AMDGPU_TYPE(Name, Id, SingletonId)   case BuiltinType::Id:
#define	HLSL_INTANGIBLE_TYPE(Name, Id, SingletonId)   case BuiltinType::Id:
#define	BUILTIN_TYPE(Id, SingletonId)
#define	PLACEHOLDER_TYPE(Id, SingletonId)    case BuiltinType::Id:
#define	TYPE(Class, Base)
#define	ABSTRACT_TYPE(Class, Base)
#define	NON_CANONICAL_UNLESS_DEPENDENT_TYPE(Class, Base)   case Type::Class:
#define	NON_CANONICAL_TYPE(Class, Base)   case Type::Class:
#define	DEPENDENT_TYPE(Class, Base)   case Type::Class:
#define	TYPE(Class, Base)
#define	ABSTRACT_TYPE(Class, Base)
#define	NON_CANONICAL_UNLESS_DEPENDENT_TYPE(Class, Base)   case Type::Class:
#define	NON_CANONICAL_TYPE(Class, Base)   case Type::Class:
#define	DEPENDENT_TYPE(Class, Base)   case Type::Class:

Functions
static llvm::Constant *	pointerAuthResignConstant (llvm::Value *Ptr, const CGPointerAuthInfo &CurAuthInfo, const CGPointerAuthInfo &NewAuthInfo, CodeGenModule &CGM)
static llvm::Constant *	pointerAuthResignMemberFunctionPointer (llvm::Constant *Src, QualType DestType, QualType SrcType, CodeGenModule &CGM)
static llvm::FunctionCallee	getAllocateExceptionFn (CodeGenModule &CGM)
static llvm::FunctionCallee	getThrowFn (CodeGenModule &CGM)
static llvm::FunctionCallee	getItaniumDynamicCastFn (CodeGenFunction &CGF)
static llvm::FunctionCallee	getBadCastFn (CodeGenFunction &CGF)
static CharUnits	computeOffsetHint (ASTContext &Context, const CXXRecordDecl *Src, const CXXRecordDecl *Dst)
	Compute the src2dst_offset hint as described in the Itanium C++ ABI [2.9.7].
static llvm::FunctionCallee	getBadTypeidFn (CodeGenFunction &CGF)
template<typename T >
static bool	CXXRecordNonInlineHasAttr (const CXXRecordDecl *RD)
static void	setVTableSelectiveDLLImportExport (CodeGenModule &CGM, llvm::GlobalVariable *VTable, const CXXRecordDecl *RD)
static llvm::Value *	performTypeAdjustment (CodeGenFunction &CGF, Address InitialPtr, const CXXRecordDecl *UnadjustedClass, int64_t NonVirtualAdjustment, int64_t VirtualAdjustment, bool IsReturnAdjustment)
static llvm::FunctionCallee	getGuardAcquireFn (CodeGenModule &CGM, llvm::PointerType *GuardPtrTy)
static llvm::FunctionCallee	getGuardReleaseFn (CodeGenModule &CGM, llvm::PointerType *GuardPtrTy)
static llvm::FunctionCallee	getGuardAbortFn (CodeGenModule &CGM, llvm::PointerType *GuardPtrTy)
static void	emitGlobalDtorWithCXAAtExit (CodeGenFunction &CGF, llvm::FunctionCallee dtor, llvm::Constant *addr, bool TLS)
	Register a global destructor using __cxa_atexit.
static llvm::Function *	createGlobalInitOrCleanupFn (CodeGen::CodeGenModule &CGM, StringRef FnName)
static bool	isThreadWrapperReplaceable (const VarDecl *VD, CodeGen::CodeGenModule &CGM)
static llvm::GlobalValue::LinkageTypes	getThreadLocalWrapperLinkage (const VarDecl *VD, CodeGen::CodeGenModule &CGM)
	Get the appropriate linkage for the wrapper function.
static bool	TypeInfoIsInStandardLibrary (const BuiltinType *Ty)
	TypeInfoIsInStandardLibrary - Given a builtin type, returns whether the type info for that type is defined in the standard library.
static bool	TypeInfoIsInStandardLibrary (const PointerType *PointerTy)
static bool	IsStandardLibraryRTTIDescriptor (QualType Ty)
	IsStandardLibraryRTTIDescriptor - Returns whether the type information for the given type exists in the standard library.
static bool	ShouldUseExternalRTTIDescriptor (CodeGenModule &CGM, QualType Ty)
	ShouldUseExternalRTTIDescriptor - Returns whether the type information for the given type exists somewhere else, and that we should not emit the type information in this translation unit.
static bool	IsIncompleteClassType (const RecordType *RecordTy)
	IsIncompleteClassType - Returns whether the given record type is incomplete.
static bool	ContainsIncompleteClassType (QualType Ty)
	ContainsIncompleteClassType - Returns whether the given type contains an incomplete class type.
static bool	CanUseSingleInheritance (const CXXRecordDecl *RD)
static llvm::GlobalVariable::LinkageTypes	getTypeInfoLinkage (CodeGenModule &CGM, QualType Ty)
	Return the linkage that the type info and type info name constants should have for the given type.
static unsigned	ComputeVMIClassTypeInfoFlags (const CXXBaseSpecifier *Base, SeenBases &Bases)
	ComputeVMIClassTypeInfoFlags - Compute the value of the flags member in abi::__vmi_class_type_info.
static unsigned	ComputeVMIClassTypeInfoFlags (const CXXRecordDecl *RD)
static unsigned	extractPBaseFlags (ASTContext &Ctx, QualType &Type)
	Compute the flags for a __pbase_type_info, and remove the corresponding pieces from Type.
static StructorCodegen	getCodegenToUse (CodeGenModule &CGM, const CXXMethodDecl *MD)
static void	emitConstructorDestructorAlias (CodeGenModule &CGM, GlobalDecl AliasDecl, GlobalDecl TargetDecl)
static llvm::FunctionCallee	getBeginCatchFn (CodeGenModule &CGM)
static llvm::FunctionCallee	getEndCatchFn (CodeGenModule &CGM)
static llvm::FunctionCallee	getGetExceptionPtrFn (CodeGenModule &CGM)
static llvm::Value *	CallBeginCatch (CodeGenFunction &CGF, llvm::Value *Exn, bool EndMightThrow)
	Emits a call to __cxa_begin_catch and enters a cleanup to call __cxa_end_catch.
static void	InitCatchParam (CodeGenFunction &CGF, const VarDecl &CatchParam, Address ParamAddr, SourceLocation Loc)
	A "special initializer" callback for initializing a catch parameter during catch initialization.
static llvm::FunctionCallee	getClangCallTerminateFn (CodeGenModule &CGM)
	Get or define the following function: void @__clang_call_terminate(i8* exn) nounwind noreturn This code is used only in C++.

Macro Definition Documentation

ABSTRACT_TYPE [1/2]

#define ABSTRACT_TYPE	(		Class,
			Base
	)

ABSTRACT_TYPE [2/2]

#define ABSTRACT_TYPE	(		Class,
			Base
	)

AMDGPU_TYPE

#define AMDGPU_TYPE	(		Name,
			Id,
			SingletonId
	)		case BuiltinType::Id:

BUILTIN_TYPE

#define BUILTIN_TYPE	(		Id,
			SingletonId
	)

DEPENDENT_TYPE [1/2]

#define DEPENDENT_TYPE	(		Class,
			Base
	)		case Type::Class:

DEPENDENT_TYPE [2/2]

#define DEPENDENT_TYPE	(		Class,
			Base
	)		case Type::Class:

EXT_OPAQUE_TYPE

#define EXT_OPAQUE_TYPE	(		ExtType,
			Id,
			Ext
	)		case BuiltinType::Id:

HLSL_INTANGIBLE_TYPE

#define HLSL_INTANGIBLE_TYPE	(		Name,
			Id,
			SingletonId
	)		case BuiltinType::Id:

IMAGE_TYPE

#define IMAGE_TYPE	(		ImgType,
			Id,
			SingletonId,
			Access,
			Suffix
	)		case BuiltinType::Id:

NON_CANONICAL_TYPE [1/2]

#define NON_CANONICAL_TYPE	(		Class,
			Base
	)		case Type::Class:

NON_CANONICAL_TYPE [2/2]

#define NON_CANONICAL_TYPE	(		Class,
			Base
	)		case Type::Class:

NON_CANONICAL_UNLESS_DEPENDENT_TYPE [1/2]

#define NON_CANONICAL_UNLESS_DEPENDENT_TYPE	(		Class,
			Base
	)		case Type::Class:

NON_CANONICAL_UNLESS_DEPENDENT_TYPE [2/2]

#define NON_CANONICAL_UNLESS_DEPENDENT_TYPE	(		Class,
			Base
	)		case Type::Class:

PLACEHOLDER_TYPE

#define PLACEHOLDER_TYPE	(		Id,
			SingletonId
	)		case BuiltinType::Id:

PPC_VECTOR_TYPE

#define PPC_VECTOR_TYPE	(		Name,
			Id,
			Size
	)		case BuiltinType::Id:

RVV_TYPE

#define RVV_TYPE	(		Name,
			Id,
			SingletonId
	)		case BuiltinType::Id:

SVE_TYPE

#define SVE_TYPE	(		Name,
			Id,
			SingletonId
	)		case BuiltinType::Id:

TYPE [1/2]

#define TYPE	(		Class,
			Base
	)

TYPE [2/2]

#define TYPE	(		Class,
			Base
	)

WASM_TYPE

#define WASM_TYPE	(		Name,
			Id,
			SingletonId
	)		case BuiltinType::Id:

Function Documentation

CallBeginCatch()

static llvm::Value * CallBeginCatch ( CodeGenFunction &  CGF, llvm::Value *  Exn, bool  EndMightThrow  )

static

Emits a call to __cxa_begin_catch and enters a cleanup to call __cxa_end_catch.

If -fassume-nothrow-exception-dtor is specified, we assume that the exception object's dtor is nothrow, therefore the __cxa_end_catch call can be marked as nounwind even if EndMightThrow is true.

Parameters

EndMightThrow

- true if __cxa_end_catch might throw

Definition at line 4791 of file ItaniumCXXABI.cpp.

References clang::CodeGen::CodeGenFunction::CGM, clang::CodeGen::CodeGenFunction::EHStack, clang::CodeGen::CodeGenFunction::EmitNounwindRuntimeCall(), getBeginCatchFn(), clang::CodeGen::CodeGenModule::getLangOpts(), and clang::CodeGen::NormalAndEHCleanup.

Referenced by InitCatchParam().

CanUseSingleInheritance()

static bool CanUseSingleInheritance ( const CXXRecordDecl *  RD )

static

Definition at line 3791 of file ItaniumCXXABI.cpp.

References clang::AS_public, clang::CXXRecordDecl::bases_begin(), clang::RecordType::getDecl(), clang::CXXRecordDecl::getNumBases(), and clang::CXXRecordDecl::isDynamicClass().

computeOffsetHint()

static CharUnits computeOffsetHint ( ASTContext &  Context, const CXXRecordDecl *  Src, const CXXRecordDecl *  Dst  )

static

Compute the src2dst_offset hint as described in the Itanium C++ ABI [2.9.7].

Definition at line 1515 of file ItaniumCXXABI.cpp.

References clang::AS_public, clang::CharUnits::fromQuantity(), clang::ASTContext::getASTRecordLayout(), clang::ASTRecordLayout::getBaseClassOffset(), clang::CXXRecordDecl::isDerivedFrom(), and Path.

ComputeVMIClassTypeInfoFlags() [1/2]

static unsigned ComputeVMIClassTypeInfoFlags ( const CXXBaseSpecifier *  Base, SeenBases &  Bases  )

static

ComputeVMIClassTypeInfoFlags - Compute the value of the flags member in abi::__vmi_class_type_info.

Definition at line 4310 of file ItaniumCXXABI.cpp.

References ComputeVMIClassTypeInfoFlags(), and clang::RecordType::getDecl().

Referenced by ComputeVMIClassTypeInfoFlags().

ComputeVMIClassTypeInfoFlags() [2/2]

static unsigned ComputeVMIClassTypeInfoFlags ( const CXXRecordDecl *  RD )

static

Definition at line 4347 of file ItaniumCXXABI.cpp.

References clang::CXXRecordDecl::bases(), and ComputeVMIClassTypeInfoFlags().

ContainsIncompleteClassType()

static bool ContainsIncompleteClassType ( QualType  Ty )

static

ContainsIncompleteClassType - Returns whether the given type contains an incomplete class type.

This is true if

• The given type is an incomplete class type.
• The given type is a pointer type whose pointee type contains an incomplete class type.
• The given type is a member pointer type whose class is an incomplete class type.
• The given type is a member pointer type whoise pointee type contains an incomplete class type. is an indirect or direct pointer to an incomplete class type.

Definition at line 3766 of file ItaniumCXXABI.cpp.

References ContainsIncompleteClassType(), and IsIncompleteClassType().

Referenced by ContainsIncompleteClassType(), extractPBaseFlags(), and getTypeInfoLinkage().

createGlobalInitOrCleanupFn()

static llvm::Function * createGlobalInitOrCleanupFn ( CodeGen::CodeGenModule &  CGM, StringRef  FnName  )

static

Definition at line 2871 of file ItaniumCXXABI.cpp.

References clang::CodeGen::CodeGenTypes::arrangeNullaryFunction(), clang::CodeGen::CodeGenModule::CreateGlobalInitOrCleanUpFunction(), clang::CodeGen::CodeGenModule::getTypes(), and clang::CodeGen::CodeGenTypeCache::VoidTy.

CXXRecordNonInlineHasAttr()

template<typename T >

static bool CXXRecordNonInlineHasAttr ( const CXXRecordDecl *  RD )

static

Definition at line 1959 of file ItaniumCXXABI.cpp.

References D, clang::Decl::hasAttr(), clang::DeclContext::noload_decls(), and clang::T.

emitConstructorDestructorAlias()

static void emitConstructorDestructorAlias ( CodeGenModule &  CGM, GlobalDecl  AliasDecl, GlobalDecl  TargetDecl  )

static

Definition at line 4635 of file ItaniumCXXABI.cpp.

References clang::AliasDecl, clang::CodeGen::CodeGenModule::GetAddrOfGlobal(), clang::CodeGen::CodeGenModule::getFunctionLinkage(), clang::CodeGen::CodeGenModule::GetGlobalValue(), clang::CodeGen::CodeGenModule::getMangledName(), and clang::CodeGen::CodeGenModule::SetCommonAttributes().

emitGlobalDtorWithCXAAtExit()

static void emitGlobalDtorWithCXAAtExit ( CodeGenFunction &  CGF, llvm::FunctionCallee  dtor, llvm::Constant *  addr, bool  TLS  )

static

Register a global destructor using __cxa_atexit.

Definition at line 2814 of file ItaniumCXXABI.cpp.

References clang::CodeGen::CodeGenFunction::CGM, clang::CodeGen::CodeGenModule::CreateRuntimeFunction(), clang::CodeGen::CodeGenModule::CreateRuntimeVariable(), dtorTy(), clang::CodeGen::CodeGenFunction::EmitNounwindRuntimeCall(), clang::CodeGen::CodeGenTypes::getCodeGenOpts(), clang::CodeGen::CodeGenModule::getContext(), clang::ASTContext::getDefaultCallingConvention(), clang::CodeGen::CodeGenModule::getFunctionPointer(), clang::ASTContext::getFunctionType(), clang::CodeGen::CodeGenFunction::getLLVMContext(), clang::CodeGen::CodeGenFunction::getTarget(), clang::TargetInfo::getTriple(), clang::CodeGen::CodeGenFunction::getTypes(), clang::CodeGen::CodeGenTypeCache::Int8PtrTy, clang::CodeGen::CodeGenTypeCache::Int8Ty, clang::CodeGen::CodeGenTypeCache::IntTy, clang::T, clang::CodeGen::CodeGenTypeCache::UnqualPtrTy, and clang::ASTContext::VoidTy.

extractPBaseFlags()

static unsigned extractPBaseFlags ( ASTContext &  Ctx, QualType &  Type  )

static

Compute the flags for a __pbase_type_info, and remove the corresponding pieces from Type.

Definition at line 4448 of file ItaniumCXXABI.cpp.

References ContainsIncompleteClassType(), clang::EST_None, clang::Type::getAs(), and clang::ASTContext::getFunctionTypeWithExceptionSpec().

getAllocateExceptionFn()

static llvm::FunctionCallee getAllocateExceptionFn ( CodeGenModule &  CGM )

static

Definition at line 1419 of file ItaniumCXXABI.cpp.

References clang::CodeGen::CodeGenModule::CreateRuntimeFunction(), clang::CodeGen::CodeGenTypeCache::Int8PtrTy, and clang::CodeGen::CodeGenTypeCache::SizeTy.

getBadCastFn()

static llvm::FunctionCallee getBadCastFn ( CodeGenFunction &  CGF )

static

Definition at line 1507 of file ItaniumCXXABI.cpp.

References clang::CodeGen::CodeGenFunction::CGM, clang::CodeGen::CodeGenModule::CreateRuntimeFunction(), and clang::CodeGen::CodeGenTypeCache::VoidTy.

getBadTypeidFn()

static llvm::FunctionCallee getBadTypeidFn ( CodeGenFunction &  CGF )

static

Definition at line 1565 of file ItaniumCXXABI.cpp.

References clang::CodeGen::CodeGenFunction::CGM, clang::CodeGen::CodeGenModule::CreateRuntimeFunction(), and clang::CodeGen::CodeGenTypeCache::VoidTy.

getBeginCatchFn()

static llvm::FunctionCallee getBeginCatchFn ( CodeGenModule &  CGM )

static

Definition at line 4733 of file ItaniumCXXABI.cpp.

References clang::CodeGen::CodeGenModule::CreateRuntimeFunction(), and clang::CodeGen::CodeGenTypeCache::Int8PtrTy.

Referenced by CallBeginCatch(), and getClangCallTerminateFn().

getClangCallTerminateFn()

static llvm::FunctionCallee getClangCallTerminateFn ( CodeGenModule &  CGM )

static

Get or define the following function: void @__clang_call_terminate(i8* exn) nounwind noreturn This code is used only in C++.

Definition at line 5025 of file ItaniumCXXABI.cpp.

References clang::CodeGen::CodeGenTypes::arrangeBuiltinFunctionDeclaration(), clang::C, clang::CodeGen::CodeGenModule::CreateRuntimeFunction(), getBeginCatchFn(), clang::CodeGen::CodeGenModule::getContext(), clang::CodeGen::CodeGenTypes::GetFunctionType(), clang::CodeGen::CodeGenModule::getLLVMContext(), clang::CodeGen::CodeGenModule::getModule(), clang::CodeGen::CodeGenTypeCache::getRuntimeCC(), clang::CodeGen::CodeGenModule::getTerminateFn(), clang::CodeGen::CodeGenModule::getTypes(), clang::CodeGen::CodeGenModule::SetLLVMFunctionAttributes(), clang::CodeGen::CodeGenModule::SetLLVMFunctionAttributesForDefinition(), and clang::CodeGen::CodeGenModule::supportsCOMDAT().

getCodegenToUse()

static StructorCodegen getCodegenToUse ( CodeGenModule &  CGM, const CXXMethodDecl *  MD  )

static

Definition at line 4598 of file ItaniumCXXABI.cpp.

References clang::AliasDecl, clang::Ctor_Complete, clang::Dtor_Complete, clang::CodeGen::CodeGenModule::getCodeGenOpts(), clang::CodeGen::CodeGenModule::getFunctionLinkage(), clang::CXXRecordDecl::getNumVBases(), clang::CXXMethodDecl::getParent(), clang::CodeGen::CodeGenModule::getTarget(), and clang::TargetInfo::getTriple().

getEndCatchFn()

static llvm::FunctionCallee getEndCatchFn ( CodeGenModule &  CGM )

static

Definition at line 4741 of file ItaniumCXXABI.cpp.

References clang::CodeGen::CodeGenModule::CreateRuntimeFunction(), and clang::CodeGen::CodeGenTypeCache::VoidTy.

getGetExceptionPtrFn()

static llvm::FunctionCallee getGetExceptionPtrFn ( CodeGenModule &  CGM )

static

Definition at line 4749 of file ItaniumCXXABI.cpp.

References clang::CodeGen::CodeGenModule::CreateRuntimeFunction(), and clang::CodeGen::CodeGenTypeCache::Int8PtrTy.

Referenced by InitCatchParam().

getGuardAbortFn()

static llvm::FunctionCallee getGuardAbortFn ( CodeGenModule &  CGM, llvm::PointerType *  GuardPtrTy  )

static

Definition at line 2570 of file ItaniumCXXABI.cpp.

References clang::CodeGen::CodeGenModule::CreateRuntimeFunction(), clang::CodeGen::CodeGenModule::getLLVMContext(), and clang::CodeGen::CodeGenTypeCache::VoidTy.

getGuardAcquireFn()

static llvm::FunctionCallee getGuardAcquireFn ( CodeGenModule &  CGM, llvm::PointerType *  GuardPtrTy  )

static

Definition at line 2545 of file ItaniumCXXABI.cpp.

References clang::CodeGen::CodeGenTypes::ConvertType(), clang::CodeGen::CodeGenModule::CreateRuntimeFunction(), clang::CodeGen::CodeGenModule::getContext(), clang::CodeGen::CodeGenModule::getLLVMContext(), clang::CodeGen::CodeGenModule::getTypes(), and clang::ASTContext::IntTy.

getGuardReleaseFn()

static llvm::FunctionCallee getGuardReleaseFn ( CodeGenModule &  CGM, llvm::PointerType *  GuardPtrTy  )

static

Definition at line 2558 of file ItaniumCXXABI.cpp.

References clang::CodeGen::CodeGenModule::CreateRuntimeFunction(), clang::CodeGen::CodeGenModule::getLLVMContext(), and clang::CodeGen::CodeGenTypeCache::VoidTy.

getItaniumDynamicCastFn()

static llvm::FunctionCallee getItaniumDynamicCastFn ( CodeGenFunction &  CGF )

static

Definition at line 1481 of file ItaniumCXXABI.cpp.

References clang::CodeGen::CodeGenFunction::CGM, clang::CodeGen::CodeGenFunction::ConvertType(), clang::CodeGen::CodeGenModule::CreateRuntimeFunction(), clang::CodeGen::CodeGenFunction::getContext(), clang::CodeGen::CodeGenFunction::getLLVMContext(), clang::ASTContext::getPointerDiffType(), clang::CodeGen::CodeGenTypeCache::GlobalsInt8PtrTy, and clang::CodeGen::CodeGenTypeCache::Int8PtrTy.

getThreadLocalWrapperLinkage()

static llvm::GlobalValue::LinkageTypes getThreadLocalWrapperLinkage ( const VarDecl *  VD, CodeGen::CodeGenModule &  CGM  )

static

Get the appropriate linkage for the wrapper function.

This is essentially the weak form of the variable's linkage; every translation unit which needs the wrapper emits a copy, and we want the linker to merge them.

Definition at line 3023 of file ItaniumCXXABI.cpp.

References clang::CodeGen::CodeGenModule::getLLVMLinkageVarDefinition(), and isThreadWrapperReplaceable().

getThrowFn()

static llvm::FunctionCallee getThrowFn ( CodeGenModule &  CGM )

static

Definition at line 1428 of file ItaniumCXXABI.cpp.

References clang::CodeGen::CodeGenModule::CreateRuntimeFunction(), clang::CodeGen::CodeGenTypeCache::GlobalsInt8PtrTy, clang::CodeGen::CodeGenTypeCache::Int8PtrTy, and clang::CodeGen::CodeGenTypeCache::VoidTy.

getTypeInfoLinkage()

static llvm::GlobalVariable::LinkageTypes getTypeInfoLinkage ( CodeGenModule &  CGM, QualType  Ty  )

static

Return the linkage that the type info and type info name constants should have for the given type.

Definition at line 3970 of file ItaniumCXXABI.cpp.

References ContainsIncompleteClassType(), clang::External, clang::CodeGen::CodeGenModule::getContext(), clang::CodeGen::CodeGenModule::getLangOpts(), clang::Type::getLinkage(), clang::ASTContext::getTargetInfo(), clang::TargetInfo::getTriple(), clang::CodeGen::CodeGenModule::getTriple(), clang::CodeGen::CodeGenModule::getVTableLinkage(), clang::Decl::hasAttr(), clang::Internal, clang::Invalid, clang::CXXRecordDecl::isDynamicClass(), clang::Module, clang::None, ShouldUseExternalRTTIDescriptor(), clang::UniqueExternal, and clang::VisibleNone.

InitCatchParam()

static void InitCatchParam ( CodeGenFunction &  CGF, const VarDecl &  CatchParam, Address  ParamAddr, SourceLocation  Loc  )

static

A "special initializer" callback for initializing a catch parameter during catch initialization.

Definition at line 4806 of file ItaniumCXXABI.cpp.

References clang::CodeGen::CodeGenFunction::Builder, CallBeginCatch(), clang::CodeGen::CodeGenFunction::CGM, clang::CodeGen::CodeGenFunction::ConvertTypeForMem(), clang::CodeGen::CGBuilderTy::CreateStore(), clang::CodeGen::CodeGenFunction::CreateTempAlloca(), clang::CodeGen::AggValueSlot::DoesNotNeedGCBarriers, clang::CodeGen::AggValueSlot::DoesNotOverlap, clang::CodeGen::CodeGenFunction::EHStack, clang::CodeGen::CodeGenFunction::EmitAggExpr(), clang::CodeGen::CodeGenFunction::EmitAggregateCopy(), clang::CodeGen::CodeGenFunction::EmitARCInitWeak(), clang::CodeGen::CodeGenFunction::EmitARCRetainNonBlock(), clang::CodeGen::CodeGenFunction::EmitLoadOfComplex(), clang::CodeGen::CodeGenFunction::EmitLoadOfScalar(), clang::CodeGen::CodeGenFunction::EmitNounwindRuntimeCall(), clang::CodeGen::Address::emitRawPointer(), clang::CodeGen::CodeGenFunction::EmitStoreOfComplex(), clang::CodeGen::CodeGenFunction::EmitStoreOfScalar(), clang::OpaqueValueExpr::findInCopyConstruct(), clang::CodeGen::AggValueSlot::forAddr(), clang::ASTContext::getCanonicalType(), clang::CodeGen::CodeGenModule::getClassPointerAlignment(), clang::CodeGen::CodeGenModule::getContext(), clang::CodeGen::CodeGenFunction::getEvaluationKind(), clang::CodeGen::CodeGenFunction::getExceptionFromSlot(), getGetExceptionPtrFn(), clang::VarDecl::getInit(), clang::Qualifiers::getObjCLifetime(), clang::Type::getPointeeType(), clang::CodeGen::CodeGenTypeCache::getPointerAlign(), clang::CanQual< T >::getQualifiers(), clang::CodeGen::TargetCodeGenInfo::getSizeOfUnwindException(), clang::CodeGen::CodeGenModule::getTargetCodeGenInfo(), clang::ValueDecl::getType(), clang::CodeGen::CodeGenTypeCache::Int8Ty, clang::CodeGen::AggValueSlot::IsNotAliased, clang::CodeGen::AggValueSlot::IsNotDestructed, clang::Type::isRecordType(), Loc, clang::CodeGen::CodeGenFunction::MakeAddrLValue(), clang::CodeGen::CodeGenFunction::MakeNaturalAlignAddrLValue(), clang::Qualifiers::OCL_Autoreleasing, clang::Qualifiers::OCL_ExplicitNone, clang::Qualifiers::OCL_None, clang::Qualifiers::OCL_Strong, clang::Qualifiers::OCL_Weak, clang::CodeGen::EHScopeStack::popTerminate(), clang::CodeGen::EHScopeStack::pushTerminate(), clang::CodeGen::TEK_Aggregate, clang::CodeGen::TEK_Complex, clang::CodeGen::TEK_Scalar, and clang::CodeGen::CodeGenTypeCache::UnqualPtrTy.

IsIncompleteClassType()

static bool IsIncompleteClassType ( const RecordType *  RecordTy )

static

IsIncompleteClassType - Returns whether the given record type is incomplete.

Definition at line 3751 of file ItaniumCXXABI.cpp.

References clang::RecordType::getDecl(), and clang::TagDecl::isCompleteDefinition().

Referenced by ContainsIncompleteClassType().

IsStandardLibraryRTTIDescriptor()

static bool IsStandardLibraryRTTIDescriptor ( QualType  Ty )

static

IsStandardLibraryRTTIDescriptor - Returns whether the type information for the given type exists in the standard library.

Definition at line 3692 of file ItaniumCXXABI.cpp.

References TypeInfoIsInStandardLibrary().

isThreadWrapperReplaceable()

static bool isThreadWrapperReplaceable ( const VarDecl *  VD, CodeGen::CodeGenModule &  CGM  )

static

Definition at line 3010 of file ItaniumCXXABI.cpp.

References clang::CodeGen::CodeGenModule::getTarget(), clang::VarDecl::getTLSKind(), clang::TargetInfo::getTriple(), clang::VarDecl::isStaticLocal(), and clang::VarDecl::TLS_Dynamic.

Referenced by getThreadLocalWrapperLinkage().

performTypeAdjustment()

static llvm::Value * performTypeAdjustment ( CodeGenFunction &  CGF, Address  InitialPtr, const CXXRecordDecl *  UnadjustedClass, int64_t  NonVirtualAdjustment, int64_t  VirtualAdjustment, bool  IsReturnAdjustment  )

static

Definition at line 2327 of file ItaniumCXXABI.cpp.

References clang::CodeGen::CodeGenFunction::Builder, clang::CodeGen::CodeGenFunction::CGM, clang::CodeGen::CodeGenFunction::ConvertType(), clang::CodeGen::CGBuilderTy::CreateAlignedLoad(), clang::CodeGen::CGBuilderTy::CreateConstInBoundsByteGEP(), clang::CodeGen::CGBuilderTy::CreateInBoundsGEP(), clang::CodeGen::Address::emitRawPointer(), clang::CharUnits::fromQuantity(), clang::CodeGen::CodeGenFunction::getContext(), clang::CodeGen::CodeGenModule::getItaniumVTableContext(), clang::CodeGen::CodeGenTypeCache::getPointerAlign(), clang::ASTContext::getPointerDiffType(), clang::CodeGen::CodeGenFunction::GetVTablePtr(), clang::CodeGen::CodeGenTypeCache::Int32Ty, clang::CodeGen::CodeGenTypeCache::Int8PtrTy, clang::CodeGen::CodeGenTypeCache::Int8Ty, clang::ItaniumVTableContext::isRelativeLayout(), V, and clang::CodeGen::Address::withElementType().

pointerAuthResignConstant()

static llvm::Constant * pointerAuthResignConstant ( llvm::Value *  Ptr, const CGPointerAuthInfo &  CurAuthInfo, const CGPointerAuthInfo &  NewAuthInfo, CodeGenModule &  CGM  )

static

Definition at line 874 of file ItaniumCXXABI.cpp.

References clang::CodeGen::CodeGenModule::getConstantSignedPointer(), clang::CodeGen::CGPointerAuthInfo::getDiscriminator(), and clang::CodeGen::CGPointerAuthInfo::getKey().

Referenced by pointerAuthResignMemberFunctionPointer().

pointerAuthResignMemberFunctionPointer()

static llvm::Constant * pointerAuthResignMemberFunctionPointer ( llvm::Constant *  Src, QualType  DestType, QualType  SrcType, CodeGenModule &  CGM  )

static

Definition at line 1014 of file ItaniumCXXABI.cpp.

References clang::CodeGen::CodeGenModule::getMemberFunctionPointerAuthInfo(), clang::Type::isMemberFunctionPointerType(), and pointerAuthResignConstant().

setVTableSelectiveDLLImportExport()

static void setVTableSelectiveDLLImportExport ( CodeGenModule &  CGM, llvm::GlobalVariable *  VTable, const CXXRecordDecl *  RD  )

static

Definition at line 1973 of file ItaniumCXXABI.cpp.

References clang::CodeGen::CodeGenModule::getVTables(), clang::Decl::hasAttr(), and clang::CodeGen::CodeGenVTables::isVTableExternal().

ShouldUseExternalRTTIDescriptor()

static bool ShouldUseExternalRTTIDescriptor ( CodeGenModule &  CGM, QualType  Ty  )

static

ShouldUseExternalRTTIDescriptor - Returns whether the type information for the given type exists somewhere else, and that we should not emit the type information in this translation unit.

Assumes that it is not a standard-library type.

Definition at line 3709 of file ItaniumCXXABI.cpp.

References false, clang::CodeGen::CodeGenModule::getContext(), clang::ASTContext::getLangOpts(), clang::CodeGen::CodeGenModule::getTarget(), clang::CodeGen::CodeGenModule::getTriple(), clang::CodeGen::CodeGenModule::getVTables(), clang::Decl::hasAttr(), clang::CXXRecordDecl::hasDefinition(), clang::TargetInfo::hasPS4DLLImportExport(), clang::CXXRecordDecl::isDynamicClass(), and clang::CodeGen::CodeGenVTables::isVTableExternal().

Referenced by getTypeInfoLinkage().

TypeInfoIsInStandardLibrary() [1/2]

static bool TypeInfoIsInStandardLibrary ( const BuiltinType *  Ty )

static

TypeInfoIsInStandardLibrary - Given a builtin type, returns whether the type info for that type is defined in the standard library.

Definition at line 3559 of file ItaniumCXXABI.cpp.

References clang::BuiltinType::getKind().

Referenced by IsStandardLibraryRTTIDescriptor(), and TypeInfoIsInStandardLibrary().

TypeInfoIsInStandardLibrary() [2/2]

static bool TypeInfoIsInStandardLibrary ( const PointerType *  PointerTy )

static

Definition at line 3674 of file ItaniumCXXABI.cpp.

References clang::Qualifiers::empty(), clang::PointerType::getPointeeType(), clang::QualType::getQualifiers(), clang::Qualifiers::removeConst(), and TypeInfoIsInStandardLibrary().