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/Basic/PointerAuthOptions.h"
#include "clang/CodeGen/ConstantInitBuilder.h"
#include "clang/CodeGenUtils/ItaniumCXXABIUtils.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/AST/TypeNodes.inc"

Go to the source code of this file.

Macros
#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 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	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 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 llvm::GlobalValue::VisibilityTypes	getRTTIVisibility (llvm::GlobalValue::VisibilityTypes Visibility, llvm::GlobalValue::DLLStorageClassTypes DLLStorageClass)
	A dllexported global must not be hidden, so dllexport takes precedence over the visibility implied by -fvisibility=hidden, as elsewhere in CodeGen.
static bool	structorSymbolMustBeRetained (CodeGenModule &CGM, const CXXMethodDecl *MD, llvm::GlobalValue::LinkageTypes Linkage)
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 )

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:

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:

TYPE [1/2]

#define TYPE	(		Class,
			Base )

TYPE [2/2]

#define TYPE	(		Class,
			Base )

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 4601 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().

createGlobalInitOrCleanupFn()

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

static

Definition at line 2962 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 2006 of file ItaniumCXXABI.cpp.

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

Referenced by setVTableSelectiveDLLImportExport().

emitConstructorDestructorAlias()

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

static

Definition at line 4445 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 2901 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, clang::CodeGen::CodeGenFunction::performAddrSpaceCast(), and clang::T.

getAllocateExceptionFn()

llvm::FunctionCallee getAllocateExceptionFn ( CodeGenModule & CGM )

static

Definition at line 1466 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 1552 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 1558 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 4543 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 4839 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 4407 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(), clang::TargetInfo::getTriple(), and structorSymbolMustBeRetained().

getEndCatchFn()

llvm::FunctionCallee getEndCatchFn ( CodeGenModule & CGM )

static

Definition at line 4551 of file ItaniumCXXABI.cpp.

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

getGetExceptionPtrFn()

llvm::FunctionCallee getGetExceptionPtrFn ( CodeGenModule & CGM )

static

Definition at line 4559 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 2657 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 2632 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 2645 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 1526 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.

getRTTIVisibility()

llvm::GlobalValue::VisibilityTypes getRTTIVisibility ( llvm::GlobalValue::VisibilityTypes Visibility, llvm::GlobalValue::DLLStorageClassTypes DLLStorageClass )

static

A dllexported global must not be hidden, so dllexport takes precedence over the visibility implied by -fvisibility=hidden, as elsewhere in CodeGen.

Definition at line 3889 of file ItaniumCXXABI.cpp.

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 3118 of file ItaniumCXXABI.cpp.

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

getThrowFn()

llvm::FunctionCallee getThrowFn ( CodeGenModule & CGM )

static

Definition at line 1475 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 3834 of file ItaniumCXXABI.cpp.

References clang::cast(), clang::CodeGenUtils::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 4616 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.

isThreadWrapperReplaceable()

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

static

Definition at line 3105 of file ItaniumCXXABI.cpp.

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

performTypeAdjustment()

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

static

Definition at line 2414 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 916 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 1056 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 2020 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 3630 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().

structorSymbolMustBeRetained()

bool structorSymbolMustBeRetained ( CodeGenModule & CGM, const CXXMethodDecl * MD, llvm::GlobalValue::LinkageTypes Linkage )

static

Definition at line 4399 of file ItaniumCXXABI.cpp.

References clang::CodeGen::CodeGenModule::getCodeGenOpts(), clang::Decl::hasAttr(), and clang::FunctionDecl::isInlined().

Referenced by getCodegenToUse().