CGExprCXX.cpp File Reference

#include "CGCUDARuntime.h"
#include "CGCXXABI.h"
#include "CGDebugInfo.h"
#include "CGObjCRuntime.h"
#include "CodeGenFunction.h"
#include "ConstantEmitter.h"
#include "TargetInfo.h"
#include "clang/Basic/CodeGenOptions.h"
#include "clang/CodeGen/CGFunctionInfo.h"
#include "llvm/IR/Intrinsics.h"

Go to the source code of this file.

Functions
static MemberCallInfo	commonEmitCXXMemberOrOperatorCall (CodeGenFunction &CGF, GlobalDecl GD, llvm::Value *This, llvm::Value *ImplicitParam, QualType ImplicitParamTy, const CallExpr *CE, CallArgList &Args, CallArgList *RtlArgs)
static CXXRecordDecl *	getCXXRecord (const Expr *E)
static void	EmitNullBaseClassInitialization (CodeGenFunction &CGF, Address DestPtr, const CXXRecordDecl *Base)
static CharUnits	CalculateCookiePadding (CodeGenFunction &CGF, const CXXNewExpr *E)
static llvm::Value *	EmitCXXNewAllocSize (CodeGenFunction &CGF, const CXXNewExpr *e, unsigned minElements, llvm::Value *&numElements, llvm::Value *&sizeWithoutCookie)
static void	StoreAnyExprIntoOneUnit (CodeGenFunction &CGF, const Expr *Init, QualType AllocType, Address NewPtr, AggValueSlot::Overlap_t MayOverlap)
static void	EmitNewInitializer (CodeGenFunction &CGF, const CXXNewExpr *E, QualType ElementType, llvm::Type *ElementTy, Address NewPtr, llvm::Value *NumElements, llvm::Value *AllocSizeWithoutCookie)
static RValue	EmitNewDeleteCall (CodeGenFunction &CGF, const FunctionDecl *CalleeDecl, const FunctionProtoType *CalleeType, const CallArgList &Args)
	Emit a call to an operator new or operator delete function, as implicitly created by new-expressions and delete-expressions.
static UsualDeleteParams	getUsualDeleteParams (const FunctionDecl *FD)
static void	EnterNewDeleteCleanup (CodeGenFunction &CGF, const CXXNewExpr *E, RValue TypeIdentity, Address NewPtr, llvm::Value *AllocSize, CharUnits AllocAlign, const CallArgList &NewArgs)
	Enter a cleanup to call 'operator delete' if the initializer in a new-expression throws.
static void	EmitDestroyingObjectDelete (CodeGenFunction &CGF, const CXXDeleteExpr *DE, Address Ptr, QualType ElementType)
	Emit the code for deleting a single object with a destroying operator delete.
static bool	EmitObjectDelete (CodeGenFunction &CGF, const CXXDeleteExpr *DE, Address Ptr, QualType ElementType, llvm::BasicBlock *UnconditionalDeleteBlock)
	Emit the code for deleting a single object.
static void	EmitArrayDelete (CodeGenFunction &CGF, const CXXDeleteExpr *E, Address deletedPtr, QualType elementType)
	Emit the code for deleting an array of objects.
static llvm::Value *	EmitTypeidFromVTable (CodeGenFunction &CGF, const Expr *E, llvm::Type *StdTypeInfoPtrTy, bool HasNullCheck)
static llvm::Value *	EmitDynamicCastToNull (CodeGenFunction &CGF, QualType DestTy)

Function Documentation

CalculateCookiePadding()

CharUnits CalculateCookiePadding ( CodeGenFunction & CGF, const CXXNewExpr * E )

static

Definition at line 695 of file CGExprCXX.cpp.

References clang::CodeGen::CodeGenFunction::CGM, clang::CodeGen::CGCXXABI::GetArrayCookieSize(), clang::CodeGen::CodeGenModule::getCXXABI(), clang::CXXNewExpr::getOperatorNew(), clang::CXXNewExpr::isArray(), clang::FunctionDecl::isReservedGlobalPlacementOperator(), and clang::CharUnits::Zero().

Referenced by EmitCXXNewAllocSize(), and clang::CodeGen::CodeGenFunction::EmitCXXNewExpr().

commonEmitCXXMemberOrOperatorCall()

MemberCallInfo commonEmitCXXMemberOrOperatorCall ( CodeGenFunction & CGF, GlobalDecl GD, llvm::Value * This, llvm::Value * ImplicitParam, QualType ImplicitParamTy, const CallExpr * CE, CallArgList & Args, CallArgList * RtlArgs )

static

Definition at line 36 of file CGExprCXX.cpp.

References clang::CodeGen::CallArgList::add(), clang::CodeGen::CallArgList::addFrom(), clang::CallExpr::arguments(), clang::cast(), clang::Type::castAs(), clang::CodeGen::CodeGenFunction::CGM, clang::CodeGen::CodeGenTypes::DeriveThisType(), clang::CodeGen::CodeGenFunction::EmitCallArgs(), clang::CodeGen::RequiredArgs::forPrototypePlus(), clang::CodeGen::RValue::get(), clang::CodeGen::CodeGenModule::getCXXABI(), clang::GlobalDecl::getDecl(), clang::CallExpr::getDirectCallee(), clang::FunctionProtoType::getNumParams(), clang::CodeGen::CGCXXABI::getThisArgumentTypeForMethod(), clang::CodeGen::CodeGenFunction::getTypes(), and clang::isa().

Referenced by clang::CodeGen::CodeGenFunction::EmitCXXDestructorCall(), clang::CodeGen::CodeGenFunction::EmitCXXMemberOrOperatorCall(), and clang::CodeGen::CodeGenFunction::EmitCXXMemberOrOperatorMemberCallExpr().

EmitArrayDelete()

void EmitArrayDelete ( CodeGenFunction & CGF, const CXXDeleteExpr * E, Address deletedPtr, QualType elementType )

static

Emit the code for deleting an array of objects.

Definition at line 2073 of file CGExprCXX.cpp.

References clang::CharUnits::alignmentOfArrayElement(), clang::CodeGen::CodeGenFunction::Builder, clang::CodeGen::CodeGenFunction::CGM, clang::CodeGen::CGBuilderTy::CreateInBoundsGEP(), clang::CodeGen::CodeGenFunction::EHStack, clang::CodeGen::CodeGenFunction::emitArrayDestroy(), clang::CodeGen::Address::emitRawPointer(), clang::CodeGen::Address::getAlignment(), clang::CodeGen::CodeGenFunction::getContext(), clang::CodeGen::CodeGenModule::getCXXABI(), clang::CodeGen::CodeGenFunction::getDestroyer(), clang::CodeGen::Address::getElementType(), clang::CXXDeleteExpr::getOperatorDelete(), clang::ASTContext::getTypeSizeInChars(), clang::QualType::isDestructedType(), clang::CodeGen::CodeGenFunction::needsEHCleanup(), clang::CodeGen::NormalAndEHCleanup, clang::CodeGen::CodeGenFunction::PopCleanupBlock(), and clang::CodeGen::CGCXXABI::ReadArrayCookie().

Referenced by clang::CodeGen::CodeGenFunction::EmitCXXDeleteExpr().

EmitCXXNewAllocSize()

llvm::Value * EmitCXXNewAllocSize ( CodeGenFunction & CGF, const CXXNewExpr * e, unsigned minElements, llvm::Value *& numElements, llvm::Value *& sizeWithoutCookie )

static

Definition at line 708 of file CGExprCXX.cpp.

References clang::CodeGen::CodeGenFunction::Builder, CalculateCookiePadding(), clang::cast(), clang::CodeGen::CodeGenFunction::CGM, clang::CodeGen::CodeGenFunction::EmitScalarExpr(), clang::CXXNewExpr::getAllocatedType(), clang::CXXNewExpr::getArraySize(), clang::ASTContext::getAsConstantArrayType(), clang::CodeGen::CodeGenFunction::getContext(), clang::CodeGen::CodeGenModule::getIntrinsic(), clang::CharUnits::getQuantity(), clang::ASTContext::getTypeSizeInChars(), clang::isa(), clang::CXXNewExpr::isArray(), clang::CharUnits::isOne(), clang::CodeGen::CodeGenTypeCache::SizeTy, clang::CodeGen::ConstantEmitter::tryEmitAbstract(), and clang::ast_matchers::type.

Referenced by clang::CodeGen::CodeGenFunction::EmitCXXNewExpr().

EmitDestroyingObjectDelete()

void EmitDestroyingObjectDelete ( CodeGenFunction & CGF, const CXXDeleteExpr * DE, Address Ptr, QualType ElementType )

static

Emit the code for deleting a single object with a destroying operator delete.

If the element type has a non-virtual destructor, Ptr has already been converted to the type of the parameter of 'operator delete'. Otherwise Ptr points to an object of the static type.

Definition at line 1939 of file CGExprCXX.cpp.

References clang::CodeGen::CodeGenFunction::CGM, clang::CodeGen::CodeGenFunction::EmitDeleteCall(), clang::CodeGen::Address::emitRawPointer(), clang::CodeGen::CGCXXABI::emitVirtualObjectDelete(), clang::Type::getAsCXXRecordDecl(), clang::CodeGen::CodeGenModule::getCXXABI(), clang::CXXRecordDecl::getDestructor(), and clang::CXXDeleteExpr::getOperatorDelete().

Referenced by clang::CodeGen::CodeGenFunction::EmitCXXDeleteExpr().

EmitDynamicCastToNull()

llvm::Value * EmitDynamicCastToNull ( CodeGenFunction & CGF, QualType DestTy )

static

C++ [expr.dynamic.cast]p9: A failed cast to reference type throws std::bad_cast

Definition at line 2231 of file CGExprCXX.cpp.

References clang::CodeGen::CodeGenFunction::Builder, clang::CodeGen::CodeGenFunction::CGM, clang::CodeGen::CodeGenFunction::ConvertType(), clang::CodeGen::CGCXXABI::EmitBadCastCall(), clang::CodeGen::CodeGenModule::getCXXABI(), and clang::Type::isPointerType().

Referenced by clang::CodeGen::CodeGenFunction::EmitDynamicCast().

EmitNewDeleteCall()

RValue EmitNewDeleteCall ( CodeGenFunction & CGF, const FunctionDecl * CalleeDecl, const FunctionProtoType * CalleeType, const CallArgList & Args )

static

Emit a call to an operator new or operator delete function, as implicitly created by new-expressions and delete-expressions.

C++1y [expr.new]p10: [In a new-expression,] an implementation is allowed to omit a call to a replaceable global allocation function.

We model such elidable calls with the 'builtin' attribute.

Definition at line 1336 of file CGExprCXX.cpp.

References clang::CodeGen::CodeGenTypes::arrangeFreeFunctionCall(), clang::CodeGen::CodeGenFunction::CGM, clang::CodeGen::CodeGenFunction::EmitCall(), clang::CodeGen::CGCallee::forDirect(), clang::CodeGen::CodeGenModule::GetAddrOfFunction(), clang::CodeGen::CodeGenModule::getTypes(), and clang::FunctionDecl::isReplaceableGlobalAllocationFunction().

Referenced by clang::CodeGen::CodeGenFunction::EmitBuiltinNewDeleteCall(), clang::CodeGen::CodeGenFunction::EmitCXXNewExpr(), and clang::CodeGen::CodeGenFunction::EmitDeleteCall().

EmitNewInitializer()

void EmitNewInitializer ( CodeGenFunction & CGF, const CXXNewExpr * E, QualType ElementType, llvm::Type * ElementTy, Address NewPtr, llvm::Value * NumElements, llvm::Value * AllocSizeWithoutCookie )

static

Definition at line 1321 of file CGExprCXX.cpp.

References clang::CodeGen::AggValueSlot::DoesNotOverlap, clang::CodeGen::CodeGenFunction::EmitNewArrayInitializer(), clang::CXXNewExpr::getAllocatedType(), clang::CXXNewExpr::getInitializer(), clang::Init, clang::CXXNewExpr::isArray(), and StoreAnyExprIntoOneUnit().

Referenced by clang::CodeGen::CodeGenFunction::EmitCXXNewExpr().

EmitNullBaseClassInitialization()

void EmitNullBaseClassInitialization ( CodeGenFunction & CGF, Address DestPtr, const CXXRecordDecl * Base )

static

Definition at line 510 of file CGExprCXX.cpp.

References clang::CodeGen::CodeGenFunction::Builder, clang::CodeGen::CodeGenFunction::CGM, clang::CodeGen::CGBuilderTy::CreateConstInBoundsByteGEP(), clang::CodeGen::CGBuilderTy::CreateMemCpy(), clang::CodeGen::CGBuilderTy::CreateMemSet(), clang::CodeGen::CodeGenModule::EmitNullConstantForBase(), clang::CodeGen::Address::getAlignment(), clang::CharUnits::getAsAlign(), clang::ASTContext::getASTRecordLayout(), clang::CodeGen::CodeGenFunction::getContext(), clang::CodeGen::CodeGenModule::getCXXABI(), clang::CodeGen::CodeGenModule::getModule(), clang::ASTRecordLayout::getNonVirtualAlignment(), clang::ASTRecordLayout::getNonVirtualSize(), clang::CodeGen::CodeGenTypeCache::getPointerSize(), clang::CodeGen::CodeGenModule::getSize(), clang::CodeGen::CGCXXABI::getVBPtrOffsets(), clang::CodeGen::CodeGenTypeCache::Int8Ty, clang::CharUnits::isNegative(), clang::CharUnits::isZero(), clang::CodeGen::Address::withElementType(), and clang::CharUnits::Zero().

Referenced by clang::CodeGen::CodeGenFunction::EmitCXXConstructExpr().

EmitObjectDelete()

bool EmitObjectDelete ( CodeGenFunction & CGF, const CXXDeleteExpr * DE, Address Ptr, QualType ElementType, llvm::BasicBlock * UnconditionalDeleteBlock )

static

Emit the code for deleting a single object.

Returns

true if we started emitting UnconditionalDeleteBlock, false if not.

Definition at line 1954 of file CGExprCXX.cpp.

References clang::CodeGen::ARCPreciseLifetime, clang::CodeGen::CodeGenFunction::CGM, clang::declaresSameEntity(), clang::Dtor_Complete, clang::CodeGen::CodeGenFunction::EHStack, clang::CodeGen::CodeGenFunction::EmitARCDestroyStrong(), clang::CodeGen::CodeGenFunction::EmitARCDestroyWeak(), clang::CodeGen::CodeGenFunction::EmitBlock(), clang::CodeGen::CodeGenFunction::EmitCXXDestructorCall(), clang::CodeGen::Address::emitRawPointer(), clang::CodeGen::CodeGenFunction::EmitTypeCheck(), clang::CodeGen::CGCXXABI::emitVirtualObjectDelete(), clang::CXXDeleteExpr::getArgument(), clang::Type::getAsCXXRecordDecl(), clang::CodeGen::CodeGenModule::getCodeGenOpts(), clang::CodeGen::CodeGenModule::getCXXABI(), getCXXRecord(), clang::CXXMethodDecl::getDevirtualizedMethod(), clang::Expr::getExprLoc(), clang::CodeGen::CodeGenModule::getLangOpts(), clang::QualType::getObjCLifetime(), clang::CXXDeleteExpr::getOperatorDelete(), clang::DeclContext::getParent(), clang::CXXMethodDecl::isVirtual(), clang::CodeGen::NormalAndEHCleanup, clang::Qualifiers::OCL_Autoreleasing, clang::Qualifiers::OCL_ExplicitNone, clang::Qualifiers::OCL_None, clang::Qualifiers::OCL_Strong, clang::Qualifiers::OCL_Weak, clang::CodeGen::CodeGenFunction::PopCleanupBlock(), and clang::CodeGen::CodeGenFunction::TCK_MemberCall.

Referenced by clang::CodeGen::CodeGenFunction::EmitCXXDeleteExpr().

EmitTypeidFromVTable()

llvm::Value * EmitTypeidFromVTable ( CodeGenFunction & CGF, const Expr * E, llvm::Type * StdTypeInfoPtrTy, bool HasNullCheck )

static

Definition at line 2160 of file CGExprCXX.cpp.

References clang::CodeGen::CodeGenFunction::Builder, clang::CodeGen::CodeGenFunction::CGM, clang::CodeGen::CodeGenFunction::createBasicBlock(), clang::CodeGen::CGBuilderTy::CreateIsNull(), clang::CodeGen::CGCXXABI::EmitBadTypeidCall(), clang::CodeGen::CodeGenFunction::EmitBlock(), clang::CodeGen::CodeGenFunction::EmitLValue(), clang::CodeGen::CodeGenFunction::EmitTypeCheck(), clang::CodeGen::CGCXXABI::EmitTypeid(), clang::CodeGen::LValue::getAddress(), clang::CodeGen::CodeGenModule::getCXXABI(), clang::Expr::getExprLoc(), clang::Expr::getType(), IsNull, clang::CodeGen::CGCXXABI::shouldTypeidBeNullChecked(), and clang::CodeGen::CodeGenFunction::TCK_DynamicOperation.

Referenced by clang::CodeGen::CodeGenFunction::EmitCXXTypeidExpr().

EnterNewDeleteCleanup()

void EnterNewDeleteCleanup ( CodeGenFunction & CGF, const CXXNewExpr * E, RValue TypeIdentity, Address NewPtr, llvm::Value * AllocSize, CharUnits AllocAlign, const CallArgList & NewArgs )

static

Enter a cleanup to call 'operator delete' if the initializer in a new-expression throws.

Definition at line 1542 of file CGExprCXX.cpp.

References clang::CodeGen::EHCleanup, clang::CodeGen::CodeGenFunction::EHStack, clang::CodeGen::Address::emitRawPointer(), clang::CodeGen::RValue::get(), clang::CXXNewExpr::getNumImplicitArgs(), clang::CXXNewExpr::getNumPlacementArgs(), clang::CXXNewExpr::getOperatorDelete(), clang::CXXNewExpr::implicitAllocationParameters(), clang::CodeGen::CodeGenFunction::initFullExprCleanup(), clang::CodeGen::CodeGenFunction::isInConditionalBranch(), clang::CodeGen::EHScopeStack::pushCleanupWithExtra(), clang::CodeGen::InvariantValue< T >::save(), and V.

Referenced by clang::CodeGen::CodeGenFunction::EmitCXXNewExpr().

getCXXRecord()

CXXRecordDecl * getCXXRecord ( const Expr * E )

static

Definition at line 179 of file CGExprCXX.cpp.

References clang::Expr::getType(), and clang::T.

Referenced by clang::CodeGen::CodeGenFunction::EmitCXXMemberOrOperatorMemberCallExpr(), and EmitObjectDelete().

getUsualDeleteParams()

UsualDeleteParams getUsualDeleteParams ( const FunctionDecl * FD )

static

Definition at line 1389 of file CGExprCXX.cpp.

References clang::Type::castAs(), clang::ValueDecl::getType(), clang::Type::isAlignValT(), clang::FunctionDecl::isDestroyingOperatorDelete(), clang::Type::isIntegerType(), clang::isTypeAwareAllocation(), clang::FunctionDecl::isTypeAwareOperatorNewOrDelete(), clang::FunctionProtoType::param_type_begin(), clang::FunctionProtoType::param_type_end(), and clang::Yes.

Referenced by clang::CodeGen::CodeGenFunction::EmitDeleteCall().

StoreAnyExprIntoOneUnit()

void StoreAnyExprIntoOneUnit ( CodeGenFunction & CGF, const Expr * Init, QualType AllocType, Address NewPtr, AggValueSlot::Overlap_t MayOverlap )

static

Definition at line 970 of file CGExprCXX.cpp.

References clang::CodeGen::AggValueSlot::DoesNotNeedGCBarriers, clang::CodeGen::CodeGenFunction::EmitAggExpr(), clang::CodeGen::CodeGenFunction::EmitComplexExprIntoLValue(), clang::CodeGen::CodeGenFunction::EmitScalarInit(), clang::CodeGen::AggValueSlot::forAddr(), clang::CodeGen::CodeGenFunction::getEvaluationKind(), clang::QualType::getQualifiers(), clang::Init, clang::CodeGen::AggValueSlot::IsDestructed, clang::CodeGen::AggValueSlot::IsNotAliased, clang::CodeGen::AggValueSlot::IsNotZeroed, clang::CodeGen::AggValueSlot::IsSanitizerChecked, clang::CodeGen::CodeGenFunction::MakeAddrLValue(), clang::CodeGen::TEK_Aggregate, clang::CodeGen::TEK_Complex, and clang::CodeGen::TEK_Scalar.

Referenced by clang::CodeGen::CodeGenFunction::EmitNewArrayInitializer(), and EmitNewInitializer().