ItaniumCXXABI.cpp File Reference

#include "CGCXXABI.h"
#include "CGCleanup.h"
#include "CGDebugInfo.h"
#include "CGRecordLayout.h"
#include "CGVTables.h"
#include "CodeGenFunction.h"
#include "CodeGenModule.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/ConvertEBCDIC.h"
#include "llvm/Support/ScopedPrinter.h"
#include <optional>
#include "clang/Basic/OpenCLImageTypes.def"
#include "clang/Basic/OpenCLExtensionTypes.def"
#include "clang/Basic/AArch64ACLETypes.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)
#define	EXT_OPAQUE_TYPE(ExtType, Id, Ext)
#define	SVE_TYPE(Name, Id, SingletonId)
#define	PPC_VECTOR_TYPE(Name, Id, Size)
#define	RVV_TYPE(Name, Id, SingletonId)
#define	WASM_TYPE(Name, Id, SingletonId)
#define	AMDGPU_TYPE(Name, Id, SingletonId, Width, Align)
#define	HLSL_INTANGIBLE_TYPE(Name, Id, SingletonId)
#define	BUILTIN_TYPE(Id, SingletonId)
#define	PLACEHOLDER_TYPE(Id, SingletonId)
#define	TYPE(Class, Base)
#define	ABSTRACT_TYPE(Class, Base)
#define	NON_CANONICAL_UNLESS_DEPENDENT_TYPE(Class, Base)
#define	NON_CANONICAL_TYPE(Class, Base)
#define	DEPENDENT_TYPE(Class, Base)
#define	TYPE(Class, Base)
#define	ABSTRACT_TYPE(Class, Base)
#define	NON_CANONICAL_UNLESS_DEPENDENT_TYPE(Class, Base)
#define	NON_CANONICAL_TYPE(Class, Base)
#define	DEPENDENT_TYPE(Class, Base)

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,
			Width,
			Align )

Value:

case BuiltinType::Id:

BUILTIN_TYPE

#define BUILTIN_TYPE	(		Id,
			SingletonId )

DEPENDENT_TYPE [1/2]

#define DEPENDENT_TYPE	(		Class,
			Base )

Value:

case Type::Class:

DEPENDENT_TYPE [2/2]

#define DEPENDENT_TYPE	(		Class,
			Base )

Value:

case Type::Class:

EXT_OPAQUE_TYPE

#define EXT_OPAQUE_TYPE	(		ExtType,
			Id,
			Ext )

Value:

    case BuiltinType::Id:

HLSL_INTANGIBLE_TYPE

#define HLSL_INTANGIBLE_TYPE	(		Name,
			Id,
			SingletonId )

Value:

case BuiltinType::Id:

IMAGE_TYPE

#define IMAGE_TYPE	(		ImgType,
			Id,
			SingletonId,
			Access,
			Suffix )

Value:

    case BuiltinType::Id:

NON_CANONICAL_TYPE [1/2]

#define NON_CANONICAL_TYPE	(		Class,
			Base )

Value:

case Type::Class:

NON_CANONICAL_TYPE [2/2]

#define NON_CANONICAL_TYPE	(		Class,
			Base )

Value:

case Type::Class:

NON_CANONICAL_UNLESS_DEPENDENT_TYPE [1/2]

#define NON_CANONICAL_UNLESS_DEPENDENT_TYPE	(		Class,
			Base )

Value:

case Type::Class:

NON_CANONICAL_UNLESS_DEPENDENT_TYPE [2/2]

#define NON_CANONICAL_UNLESS_DEPENDENT_TYPE	(		Class,
			Base )

Value:

case Type::Class:

PLACEHOLDER_TYPE

#define PLACEHOLDER_TYPE	(		Id,
			SingletonId )

Value:

    case BuiltinType::Id:

PPC_VECTOR_TYPE

#define PPC_VECTOR_TYPE	(		Name,
			Id,
			Size )

Value:

    case BuiltinType::Id:

RVV_TYPE

#define RVV_TYPE	(		Name,
			Id,
			SingletonId )

Value:

case BuiltinType::Id:

SVE_TYPE

#define SVE_TYPE	(		Name,
			Id,
			SingletonId )

Value:

    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 )

Value:

case BuiltinType::Id:

Function Documentation

CallBeginCatch()

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 4950 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()

bool CanUseSingleInheritance ( const CXXRecordDecl * RD )

static

Definition at line 3940 of file ItaniumCXXABI.cpp.

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

computeOffsetHint()

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 1554 of file ItaniumCXXABI.cpp.

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

ComputeVMIClassTypeInfoFlags() [1/2]

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 4473 of file ItaniumCXXABI.cpp.

References ComputeVMIClassTypeInfoFlags().

Referenced by ComputeVMIClassTypeInfoFlags(), and ComputeVMIClassTypeInfoFlags().

ComputeVMIClassTypeInfoFlags() [2/2]

unsigned ComputeVMIClassTypeInfoFlags ( const CXXRecordDecl * RD )

static

Definition at line 4508 of file ItaniumCXXABI.cpp.

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

ContainsIncompleteClassType()

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 3916 of file ItaniumCXXABI.cpp.

References ContainsIncompleteClassType(), and IsIncompleteClassType().

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

createGlobalInitOrCleanupFn()

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

static

Definition at line 3002 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>

bool CXXRecordNonInlineHasAttr ( const CXXRecordDecl * RD )

static

Definition at line 2051 of file ItaniumCXXABI.cpp.

References clang::FunctionDecl::doesThisDeclarationHaveABody(), clang::Decl::hasAttr(), clang::FunctionDecl::isInlined(), clang::FunctionDecl::isPureVirtual(), and clang::DeclContext::noload_decls().

Referenced by setVTableSelectiveDLLImportExport().

emitConstructorDestructorAlias()

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

static

Definition at line 4794 of file ItaniumCXXABI.cpp.

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

emitGlobalDtorWithCXAAtExit()

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

static

Register a global destructor using __cxa_atexit.

Definition at line 2941 of file ItaniumCXXABI.cpp.

References clang::cast(), clang::CodeGen::CodeGenFunction::CGM, clang::CodeGen::CodeGenModule::CreateRuntimeFunction(), clang::CodeGen::CodeGenModule::CreateRuntimeVariable(), clang::CodeGen::CodeGenTypeCache::DefaultPtrTy, dtorTy(), clang::CodeGen::CodeGenFunction::EmitNounwindRuntimeCall(), clang::CodeGen::CodeGenTypes::getCodeGenOpts(), clang::CodeGen::CodeGenModule::getContext(), clang::CodeGen::CodeGenModule::getFunctionPointer(), 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, and clang::CodeGen::CodeGenFunction::performAddrSpaceCast().

extractPBaseFlags()

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 4607 of file ItaniumCXXABI.cpp.

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

getAllocateExceptionFn()

llvm::FunctionCallee getAllocateExceptionFn ( CodeGenModule & CGM )

static

Definition at line 1460 of file ItaniumCXXABI.cpp.

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

getBadCastFn()

llvm::FunctionCallee getBadCastFn ( CodeGenFunction & CGF )

static

Definition at line 1546 of file ItaniumCXXABI.cpp.

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

getBadTypeidFn()

llvm::FunctionCallee getBadTypeidFn ( CodeGenFunction & CGF )

static

Definition at line 1604 of file ItaniumCXXABI.cpp.

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

getBeginCatchFn()

llvm::FunctionCallee getBeginCatchFn ( CodeGenModule & CGM )

static

Definition at line 4892 of file ItaniumCXXABI.cpp.

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

Referenced by CallBeginCatch(), and getClangCallTerminateFn().

getClangCallTerminateFn()

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 5188 of file ItaniumCXXABI.cpp.

References clang::CodeGen::CodeGenTypes::arrangeBuiltinFunctionDeclaration(), clang::C, clang::cast(), 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()

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

static

Definition at line 4757 of file ItaniumCXXABI.cpp.

References clang::AliasDecl, clang::cast(), 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()

llvm::FunctionCallee getEndCatchFn ( CodeGenModule & CGM )

static

Definition at line 4900 of file ItaniumCXXABI.cpp.

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

getGetExceptionPtrFn()

llvm::FunctionCallee getGetExceptionPtrFn ( CodeGenModule & CGM )

static

Definition at line 4908 of file ItaniumCXXABI.cpp.

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

Referenced by InitCatchParam().

getGuardAbortFn()

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

static

Definition at line 2697 of file ItaniumCXXABI.cpp.

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

getGuardAcquireFn()

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

static

Definition at line 2672 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()

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

static

Definition at line 2685 of file ItaniumCXXABI.cpp.

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

getItaniumDynamicCastFn()

llvm::FunctionCallee getItaniumDynamicCastFn ( CodeGenFunction & CGF )

static

Definition at line 1520 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()

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 3158 of file ItaniumCXXABI.cpp.

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

getThrowFn()

llvm::FunctionCallee getThrowFn ( CodeGenModule & CGM )

static

Definition at line 1469 of file ItaniumCXXABI.cpp.

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

getTypeInfoLinkage()

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 4126 of file ItaniumCXXABI.cpp.

References clang::cast(), ContainsIncompleteClassType(), clang::External, clang::CodeGen::CodeGenModule::getContext(), clang::CodeGen::CodeGenModule::getLangOpts(), clang::Type::getLinkage(), clang::ASTContext::getTargetInfo(), clang::CodeGen::CodeGenModule::getTriple(), clang::TargetInfo::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()

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 4965 of file ItaniumCXXABI.cpp.

References clang::CodeGen::CodeGenFunction::Builder, CallBeginCatch(), clang::cast(), clang::CodeGen::CodeGenFunction::CGM, clang::CodeGen::CodeGenFunction::ConvertTypeForMem(), clang::CodeGen::CGBuilderTy::CreateStore(), clang::CodeGen::CodeGenFunction::CreateTempAlloca(), clang::CodeGen::CodeGenTypeCache::DefaultPtrTy, 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::isa(), clang::CodeGen::AggValueSlot::IsNotAliased, clang::CodeGen::AggValueSlot::IsNotDestructed, clang::Type::isRecordType(), 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::CodeGenFunction::OpaqueValueMapping::pop(), clang::CodeGen::EHScopeStack::popTerminate(), clang::CodeGen::EHScopeStack::pushTerminate(), clang::CodeGen::TEK_Aggregate, clang::CodeGen::TEK_Complex, and clang::CodeGen::TEK_Scalar.

IsIncompleteClassType()

bool IsIncompleteClassType ( const RecordType * RecordTy )

static

IsIncompleteClassType - Returns whether the given record type is incomplete.

Definition at line 3901 of file ItaniumCXXABI.cpp.

Referenced by ContainsIncompleteClassType().

IsStandardLibraryRTTIDescriptor()

bool IsStandardLibraryRTTIDescriptor ( QualType Ty )

static

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

Definition at line 3841 of file ItaniumCXXABI.cpp.

References TypeInfoIsInStandardLibrary().

isThreadWrapperReplaceable()

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

static

Definition at line 3145 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()

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

static

Definition at line 2454 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::getLangOpts(), clang::CodeGen::CodeGenTypeCache::getPointerAlign(), clang::ASTContext::getPointerDiffType(), clang::CodeGen::CodeGenFunction::GetVTablePtr(), clang::CodeGen::CodeGenTypeCache::Int32Ty, clang::CodeGen::CodeGenTypeCache::Int8PtrTy, clang::CodeGen::CodeGenTypeCache::Int8Ty, V, and clang::CodeGen::Address::withElementType().

pointerAuthResignConstant()

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

static

Definition at line 910 of file ItaniumCXXABI.cpp.

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

Referenced by pointerAuthResignMemberFunctionPointer().

pointerAuthResignMemberFunctionPointer()

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

static

Definition at line 1050 of file ItaniumCXXABI.cpp.

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

setVTableSelectiveDLLImportExport()

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

static

Definition at line 2065 of file ItaniumCXXABI.cpp.

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

ShouldUseExternalRTTIDescriptor()

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 3858 of file ItaniumCXXABI.cpp.

References clang::cast(), false, clang::CodeGen::CodeGenModule::getContext(), 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]

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 3708 of file ItaniumCXXABI.cpp.

References clang::BuiltinType::getKind().

Referenced by IsStandardLibraryRTTIDescriptor(), and TypeInfoIsInStandardLibrary().

TypeInfoIsInStandardLibrary() [2/2]

bool TypeInfoIsInStandardLibrary ( const PointerType * PointerTy )

static

Definition at line 3823 of file ItaniumCXXABI.cpp.

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