clang  11.0.0git
Macros | Enumerations | Functions | Variables
CGExpr.cpp File Reference
#include "CGCXXABI.h"
#include "CGCall.h"
#include "CGCleanup.h"
#include "CGDebugInfo.h"
#include "CGObjCRuntime.h"
#include "CGOpenMPRuntime.h"
#include "CGRecordLayout.h"
#include "CodeGenFunction.h"
#include "CodeGenModule.h"
#include "ConstantEmitter.h"
#include "TargetInfo.h"
#include "clang/AST/ASTContext.h"
#include "clang/AST/Attr.h"
#include "clang/AST/DeclObjC.h"
#include "clang/AST/NSAPI.h"
#include "clang/Basic/Builtins.h"
#include "clang/Basic/CodeGenOptions.h"
#include "clang/Basic/SourceManager.h"
#include "llvm/ADT/Hashing.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/IR/Intrinsics.h"
#include "llvm/IR/LLVMContext.h"
#include "llvm/IR/MDBuilder.h"
#include "llvm/Support/ConvertUTF.h"
#include "llvm/Support/MathExtras.h"
#include "llvm/Support/Path.h"
#include "llvm/Transforms/Utils/SanitizerStats.h"
#include <string>
Include dependency graph for CGExpr.cpp:

Go to the source code of this file.

Macros

#define SANITIZER_CHECK(Enum, Name, Version)   {#Name, Version},
 

Enumerations

enum  ConstantEmissionKind { CEK_None, CEK_AsReferenceOnly, CEK_AsValueOrReference, CEK_AsValueOnly }
 Can we constant-emit a load of a reference to a variable of the given type? This is different from predicates like Decl::mightBeUsableInConstantExpressions because we do want it to apply in situations that don't necessarily satisfy the language's rules for this (e.g. More...
 
enum  CheckRecoverableKind
 Specify under what conditions this check can be recovered. More...
 

Functions

static void pushTemporaryCleanup (CodeGenFunction &CGF, const MaterializeTemporaryExpr *M, const Expr *E, Address ReferenceTemporary)
 
static Address createReferenceTemporary (CodeGenFunction &CGF, const MaterializeTemporaryExpr *M, const Expr *Inner, Address *Alloca=nullptr)
 
static bool isAAPCS (const TargetInfo &TargetInfo)
 Helper method to check if the underlying ABI is AAPCS. More...
 
static llvm::Value * emitHash16Bytes (CGBuilderTy &Builder, llvm::Value *Low, llvm::Value *High)
 Emit the hash_16_bytes function from include/llvm/ADT/Hashing.h. More...
 
static bool isFlexibleArrayMemberExpr (const Expr *E)
 Determine whether this expression refers to a flexible array member in a struct. More...
 
static llvm::Value * getArrayIndexingBound (CodeGenFunction &CGF, const Expr *Base, QualType &IndexedType)
 If Base is known to point to the start of an array, return the length of that array. More...
 
static bool isConstantEmittableObjectType (QualType type)
 Given an object of the given canonical type, can we safely copy a value out of it based on its initializer? More...
 
static ConstantEmissionKind checkVarTypeForConstantEmission (QualType type)
 
static DeclRefExpr * tryToConvertMemberExprToDeclRefExpr (CodeGenFunction &CGF, const MemberExpr *ME)
 
static bool hasBooleanRepresentation (QualType Ty)
 
static bool getRangeForType (CodeGenFunction &CGF, QualType Ty, llvm::APInt &Min, llvm::APInt &End, bool StrictEnums, bool IsBool)
 
static Address MaybeConvertMatrixAddress (Address Addr, CodeGenFunction &CGF, bool IsVector=true)
 
static void EmitStoreOfMatrixScalar (llvm::Value *value, LValue lvalue, bool isInit, CodeGenFunction &CGF)
 
static RValue EmitLoadOfMatrixLValue (LValue LV, SourceLocation Loc, CodeGenFunction &CGF)
 
static void setObjCGCLValueClass (const ASTContext &Ctx, const Expr *E, LValue &LV, bool IsMemberAccess=false)
 
static llvm::Value * EmitBitCastOfLValueToProperType (CodeGenFunction &CGF, llvm::Value *V, llvm::Type *IRType, StringRef Name=StringRef())
 
static LValue EmitThreadPrivateVarDeclLValue (CodeGenFunction &CGF, const VarDecl *VD, QualType T, Address Addr, llvm::Type *RealVarTy, SourceLocation Loc)
 
static Address emitDeclTargetVarDeclLValue (CodeGenFunction &CGF, const VarDecl *VD, QualType T)
 
static LValue EmitGlobalVarDeclLValue (CodeGenFunction &CGF, const Expr *E, const VarDecl *VD)
 
static llvm::Constant * EmitFunctionDeclPointer (CodeGenModule &CGM, GlobalDecl GD)
 
static LValue EmitFunctionDeclLValue (CodeGenFunction &CGF, const Expr *E, GlobalDecl GD)
 
static LValue EmitCapturedFieldLValue (CodeGenFunction &CGF, const FieldDecl *FD, llvm::Value *ThisValue)
 
static LValue EmitGlobalNamedRegister (const VarDecl *VD, CodeGenModule &CGM)
 Named Registers are named metadata pointing to the register name which will be read from/written to as an argument to the intrinsic .read/write_register. More...
 
static bool canEmitSpuriousReferenceToVariable (CodeGenFunction &CGF, const DeclRefExpr *E, const VarDecl *VD, bool IsConstant)
 Determine whether we can emit a reference to VD from the current context, despite not necessarily having seen an odr-use of the variable in this context. More...
 
static CheckRecoverableKind getRecoverableKind (SanitizerMask Kind)
 
static void emitCheckHandlerCall (CodeGenFunction &CGF, llvm::FunctionType *FnType, ArrayRef< llvm::Value *> FnArgs, SanitizerHandler CheckHandler, CheckRecoverableKind RecoverKind, bool IsFatal, llvm::BasicBlock *ContBB)
 
static const Expr * isSimpleArrayDecayOperand (const Expr *E)
 isSimpleArrayDecayOperand - If the specified expr is a simple decay from an array to pointer, return the array subexpression. More...
 
static llvm::Value * emitArraySubscriptGEP (CodeGenFunction &CGF, llvm::Value *ptr, ArrayRef< llvm::Value *> indices, bool inbounds, bool signedIndices, SourceLocation loc, const llvm::Twine &name="arrayidx")
 
static CharUnits getArrayElementAlign (CharUnits arrayAlign, llvm::Value *idx, CharUnits eltSize)
 
static QualType getFixedSizeElementType (const ASTContext &ctx, const VariableArrayType *vla)
 
static bool IsPreserveAIArrayBase (CodeGenFunction &CGF, const Expr *ArrayBase)
 Given an array base, check whether its member access belongs to a record with preserve_access_index attribute or not. More...
 
static Address emitArraySubscriptGEP (CodeGenFunction &CGF, Address addr, ArrayRef< llvm::Value *> indices, QualType eltType, bool inbounds, bool signedIndices, SourceLocation loc, QualType *arrayType=nullptr, const Expr *Base=nullptr, const llvm::Twine &name="arrayidx")
 
static Address emitOMPArraySectionBase (CodeGenFunction &CGF, const Expr *Base, LValueBaseInfo &BaseInfo, TBAAAccessInfo &TBAAInfo, QualType BaseTy, QualType ElTy, bool IsLowerBound)
 
static Address emitAddrOfZeroSizeField (CodeGenFunction &CGF, Address Base, const FieldDecl *Field)
 Get the address of a zero-sized field within a record. More...
 
static Address emitAddrOfFieldStorage (CodeGenFunction &CGF, Address base, const FieldDecl *field)
 Drill down to the storage of a field without walking into reference types. More...
 
static Address emitPreserveStructAccess (CodeGenFunction &CGF, LValue base, Address addr, const FieldDecl *field)
 
static bool hasAnyVptr (const QualType Type, const ASTContext &Context)
 
static Optional< LValue > EmitLValueOrThrowExpression (CodeGenFunction &CGF, const Expr *Operand)
 Emit the operand of a glvalue conditional operator. More...
 
static CGCallee EmitDirectCallee (CodeGenFunction &CGF, GlobalDecl GD)
 
static LValueOrRValue emitPseudoObjectExpr (CodeGenFunction &CGF, const PseudoObjectExpr *E, bool forLValue, AggValueSlot slot)
 

Variables

const SanitizerHandlerInfo SanitizerHandlers []
 

Macro Definition Documentation

◆ SANITIZER_CHECK

#define SANITIZER_CHECK (   Enum,
  Name,
  Version 
)    {#Name, Version},

Enumeration Type Documentation

◆ CheckRecoverableKind

enum CheckRecoverableKind
strong

Specify under what conditions this check can be recovered.

Definition at line 3059 of file CGExpr.cpp.

◆ ConstantEmissionKind

enum ConstantEmissionKind

Can we constant-emit a load of a reference to a variable of the given type? This is different from predicates like Decl::mightBeUsableInConstantExpressions because we do want it to apply in situations that don't necessarily satisfy the language's rules for this (e.g.

C++'s ODR-use rules). For example, we want to able to do this with const float variables even if those variables aren't marked 'constexpr'.

Enumerator
CEK_None 
CEK_AsReferenceOnly 
CEK_AsValueOrReference 
CEK_AsValueOnly 

Definition at line 1446 of file CGExpr.cpp.

Function Documentation

◆ canEmitSpuriousReferenceToVariable()

static bool canEmitSpuriousReferenceToVariable ( CodeGenFunction &  CGF,
const DeclRefExpr *  E,
const VarDecl *  VD,
bool  IsConstant 
)
static

Determine whether we can emit a reference to VD from the current context, despite not necessarily having seen an odr-use of the variable in this context.

Definition at line 2580 of file CGExpr.cpp.

References clang::CodeGen::CodeGenFunction::CGM, clang::CodeGen::CodeGenFunction::CurCodeDecl, clang::ExternalLinkage, clang::CodeGen::CodeGenFunction::getContext(), clang::Decl::getDeclContext(), clang::VarDecl::getDefinition(), clang::CodeGen::CodeGenFunction::getLangOpts(), clang::CodeGen::CodeGenModule::getLLVMLinkageVarDefinition(), clang::VarDecl::hasLocalStorage(), clang::InternalLinkage, and clang::DeclRefExpr::refersToEnclosingVariableOrCapture().

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

◆ checkVarTypeForConstantEmission()

static ConstantEmissionKind checkVarTypeForConstantEmission ( QualType  type)
static

Definition at line 1452 of file CGExpr.cpp.

References CEK_AsReferenceOnly, CEK_AsValueOnly, CEK_AsValueOrReference, CEK_None, clang::QualType::getCanonicalType(), and isConstantEmittableObjectType().

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

◆ createReferenceTemporary()

static Address createReferenceTemporary ( CodeGenFunction &  CGF,
const MaterializeTemporaryExpr *  M,
const Expr *  Inner,
Address *  Alloca = nullptr 
)
static

Definition at line 382 of file CGExpr.cpp.

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

◆ emitAddrOfFieldStorage()

static Address emitAddrOfFieldStorage ( CodeGenFunction &  CGF,
Address  base,
const FieldDecl *  field 
)
static

Drill down to the storage of a field without walking into reference types.

The resulting address doesn't necessarily have the right type.

Definition at line 4146 of file CGExpr.cpp.

References clang::CodeGen::CodeGenFunction::Builder, clang::CodeGen::CodeGenFunction::CGM, clang::CodeGen::CGBuilderTy::CreateStructGEP(), emitAddrOfZeroSizeField(), clang::CodeGen::CodeGenTypes::getCGRecordLayout(), clang::CodeGen::CodeGenFunction::getContext(), clang::CodeGen::CGRecordLayout::getLLVMFieldNo(), clang::NamedDecl::getName(), clang::FieldDecl::getParent(), clang::CodeGen::CodeGenModule::getTypes(), and clang::FieldDecl::isZeroSize().

Referenced by clang::CodeGen::CodeGenFunction::EmitLValueForField(), and clang::CodeGen::CodeGenFunction::EmitLValueForFieldInitialization().

◆ emitAddrOfZeroSizeField()

static Address emitAddrOfZeroSizeField ( CodeGenFunction &  CGF,
Address  Base,
const FieldDecl *  Field 
)
static

Get the address of a zero-sized field within a record.

The resulting address doesn't necessarily have the right type.

Definition at line 4132 of file CGExpr.cpp.

References clang::CodeGen::CodeGenFunction::Builder, clang::CodeGen::CGBuilderTy::CreateConstInBoundsByteGEP(), clang::CodeGen::CGBuilderTy::CreateElementBitCast(), clang::CodeGen::CodeGenFunction::getContext(), clang::ASTContext::getFieldOffset(), clang::CodeGen::CodeGenTypeCache::Int8Ty, clang::CharUnits::isZero(), Offset, and clang::ASTContext::toCharUnitsFromBits().

Referenced by emitAddrOfFieldStorage().

◆ emitArraySubscriptGEP() [1/2]

static llvm::Value* emitArraySubscriptGEP ( CodeGenFunction &  CGF,
llvm::Value *  ptr,
ArrayRef< llvm::Value *>  indices,
bool  inbounds,
bool  signedIndices,
SourceLocation  loc,
const llvm::Twine &  name = "arrayidx" 
)
static

Definition at line 3504 of file CGExpr.cpp.

References clang::CodeGen::CodeGenFunction::Builder, clang::CodeGen::CodeGenFunction::EmitCheckedInBoundsGEP(), clang::transformer::name(), and clang::CodeGen::CodeGenFunction::NotSubtraction.

Referenced by clang::CodeGen::CodeGenFunction::EmitArraySubscriptExpr(), emitArraySubscriptGEP(), and clang::CodeGen::CodeGenFunction::EmitOMPArraySectionExpr().

◆ emitArraySubscriptGEP() [2/2]

static Address emitArraySubscriptGEP ( CodeGenFunction &  CGF,
Address  addr,
ArrayRef< llvm::Value *>  indices,
QualType  eltType,
bool  inbounds,
bool  signedIndices,
SourceLocation  loc,
QualType *  arrayType = nullptr,
const Expr *  Base = nullptr,
const llvm::Twine &  name = "arrayidx" 
)
static

Definition at line 3580 of file CGExpr.cpp.

References clang::ast_matchers::arrayType, clang::CodeGen::CodeGenFunction::Builder, emitArraySubscriptGEP(), clang::CodeGen::Address::getAlignment(), getArrayElementAlign(), clang::ASTContext::getAsVariableArrayType(), clang::CodeGen::CodeGenFunction::getContext(), clang::CodeGen::CodeGenFunction::getDebugInfo(), clang::CodeGen::Address::getElementType(), getFixedSizeElementType(), clang::CodeGen::CGDebugInfo::getOrCreateStandaloneType(), clang::CodeGen::Address::getPointer(), clang::ASTContext::getTypeSizeInChars(), clang::CodeGen::CodeGenFunction::IsInPreservedAIRegion, IsPreserveAIArrayBase(), and clang::transformer::name().

◆ EmitBitCastOfLValueToProperType()

static llvm::Value* EmitBitCastOfLValueToProperType ( CodeGenFunction &  CGF,
llvm::Value *  V,
llvm::Type *  IRType,
StringRef  Name = StringRef() 
)
static

Definition at line 2391 of file CGExpr.cpp.

Referenced by EmitGlobalVarDeclLValue().

◆ EmitCapturedFieldLValue()

static LValue EmitCapturedFieldLValue ( CodeGenFunction &  CGF,
const FieldDecl *  FD,
llvm::Value *  ThisValue 
)
static

Definition at line 2542 of file CGExpr.cpp.

References clang::CodeGen::CodeGenFunction::EmitLValueForField(), clang::CodeGen::CodeGenFunction::getContext(), clang::FieldDecl::getParent(), clang::ASTContext::getTagDeclType(), and clang::CodeGen::CodeGenFunction::MakeNaturalAlignAddrLValue().

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

◆ emitCheckHandlerCall()

static void emitCheckHandlerCall ( CodeGenFunction &  CGF,
llvm::FunctionType *  FnType,
ArrayRef< llvm::Value *>  FnArgs,
SanitizerHandler  CheckHandler,
CheckRecoverableKind  RecoverKind,
bool  IsFatal,
llvm::BasicBlock *  ContBB 
)
static

Definition at line 3093 of file CGExpr.cpp.

References AlwaysRecoverable, clang::CodeGen::CodeGenFunction::Builder, clang::CodeGen::CodeGenFunction::CGM, clang::CodeGen::CodeGenModule::CreateRuntimeFunction(), clang::CodeGen::CodeGenFunction::EmitNounwindRuntimeCall(), clang::CodeGen::CodeGenModule::getCodeGenOpts(), clang::CodeGen::CodeGenFunction::getLLVMContext(), and Unrecoverable.

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

◆ emitDeclTargetVarDeclLValue()

static Address emitDeclTargetVarDeclLValue ( CodeGenFunction &  CGF,
const VarDecl *  VD,
QualType  T 
)
static

Definition at line 2412 of file CGExpr.cpp.

References clang::CodeGen::CodeGenFunction::CGM, clang::CodeGen::CodeGenFunction::EmitLoadOfPointer(), clang::CodeGen::CodeGenFunction::getContext(), clang::CodeGen::CodeGenModule::getOpenMPRuntime(), clang::ASTContext::getPointerType(), clang::ValueDecl::getType(), and clang::CodeGen::Address::invalid().

Referenced by EmitGlobalVarDeclLValue().

◆ EmitDirectCallee()

static CGCallee EmitDirectCallee ( CodeGenFunction &  CGF,
GlobalDecl  GD 
)
static

Definition at line 4777 of file CGExpr.cpp.

References clang::CodeGen::CodeGenFunction::CGM, clang::CodeGen::CodeGenFunction::CurFn, EmitFunctionDeclPointer(), clang::CodeGen::CGCallee::forBuiltin(), clang::CodeGen::CGCallee::forDirect(), clang::FunctionDecl::getBuiltinID(), clang::GlobalDecl::getDecl(), clang::NamedDecl::getName(), and clang::FunctionDecl::isInlineBuiltinDeclaration().

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

◆ EmitFunctionDeclLValue()

static LValue EmitFunctionDeclLValue ( CodeGenFunction &  CGF,
const Expr *  E,
GlobalDecl  GD 
)
static

Definition at line 2533 of file CGExpr.cpp.

References clang::CodeGen::CodeGenFunction::CGM, clang::CodeGen::Decl, EmitFunctionDeclPointer(), clang::CodeGen::CodeGenFunction::getContext(), clang::GlobalDecl::getDecl(), clang::ASTContext::getDeclAlign(), clang::Expr::getType(), and clang::CodeGen::CodeGenFunction::MakeAddrLValue().

Referenced by clang::CodeGen::CodeGenFunction::EmitDeclRefLValue(), and clang::CodeGen::CodeGenFunction::EmitMemberExpr().

◆ EmitFunctionDeclPointer()

static llvm::Constant* EmitFunctionDeclPointer ( CodeGenModule &  CGM,
GlobalDecl  GD 
)
static

Definition at line 2508 of file CGExpr.cpp.

References clang::CodeGen::CodeGenTypes::ConvertType(), clang::CodeGen::CodeGenModule::GetAddrOfFunction(), clang::Type::getAs(), clang::CodeGen::CodeGenModule::getContext(), clang::GlobalDecl::getDecl(), clang::ASTContext::getFunctionNoProtoType(), clang::CodeGen::ConstantAddress::getPointer(), clang::ASTContext::getPointerType(), clang::ValueDecl::getType(), clang::CodeGen::CodeGenModule::getTypes(), clang::CodeGen::CodeGenModule::GetWeakRefReference(), clang::Decl::hasAttr(), clang::FunctionDecl::hasPrototype(), and V.

Referenced by EmitDirectCallee(), and EmitFunctionDeclLValue().

◆ EmitGlobalNamedRegister()

static LValue EmitGlobalNamedRegister ( const VarDecl *  VD,
CodeGenModule &  CGM 
)
static

Named Registers are named metadata pointing to the register name which will be read from/written to as an argument to the intrinsic .read/write_register.

So far, only the name is being passed down, but other options such as register type, allocation type or even optimization options could be passed down via the metadata node.

Definition at line 2555 of file CGExpr.cpp.

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

◆ EmitGlobalVarDeclLValue()

static LValue EmitGlobalVarDeclLValue ( CodeGenFunction &  CGF,
const Expr *  E,
const VarDecl *  VD 
)
static

Definition at line 2472 of file CGExpr.cpp.

References clang::CodeGen::CodeGenFunction::CGM, clang::CodeGen::CodeGenTypes::ConvertTypeForMem(), clang::CodeGen::Decl, EmitBitCastOfLValueToProperType(), emitDeclTargetVarDeclLValue(), clang::CodeGen::CodeGenFunction::EmitLoadOfReferenceLValue(), clang::CodeGen::CGCXXABI::EmitThreadLocalVarDeclLValue(), EmitThreadPrivateVarDeclLValue(), clang::CodeGen::CodeGenModule::GetAddrOfGlobalVar(), clang::CodeGen::CodeGenFunction::getContext(), clang::CodeGen::CodeGenModule::getCXXABI(), clang::ASTContext::getDeclAlign(), clang::Expr::getExprLoc(), clang::CodeGen::CodeGenFunction::getLangOpts(), clang::VarDecl::getTLSKind(), clang::Expr::getType(), clang::ValueDecl::getType(), clang::CodeGen::CodeGenFunction::getTypes(), clang::Decl::hasAttr(), clang::Type::isReferenceType(), clang::CodeGen::Address::isValid(), clang::CodeGen::CodeGenFunction::MakeAddrLValue(), setObjCGCLValueClass(), clang::VarDecl::TLS_Dynamic, clang::CodeGen::Type, and clang::CodeGen::CGCXXABI::usesThreadWrapperFunction().

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

◆ emitHash16Bytes()

static llvm::Value* emitHash16Bytes ( CGBuilderTy &  Builder,
llvm::Value *  Low,
llvm::Value *  High 
)
static

Emit the hash_16_bytes function from include/llvm/ADT/Hashing.h.

Definition at line 639 of file CGExpr.cpp.

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

◆ EmitLoadOfMatrixLValue()

static RValue EmitLoadOfMatrixLValue ( LValue  LV,
SourceLocation  Loc,
CodeGenFunction &  CGF 
)
static

Definition at line 1848 of file CGExpr.cpp.

References clang::CodeGen::CodeGenFunction::EmitLoadOfScalar(), clang::CodeGen::RValue::get(), clang::CodeGen::LValue::getAddress(), clang::CodeGen::LValue::getType(), clang::Type::isConstantMatrixType(), MaybeConvertMatrixAddress(), and clang::CodeGen::LValue::setAddress().

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

◆ EmitLValueOrThrowExpression()

static Optional<LValue> EmitLValueOrThrowExpression ( CodeGenFunction &  CGF,
const Expr *  Operand 
)
static

Emit the operand of a glvalue conditional operator.

This is either a glvalue or a (possibly-parenthesized) throw-expression. If this is a throw, no LValue is returned and the current block has been terminated.

Definition at line 4411 of file CGExpr.cpp.

References clang::CodeGen::CodeGenFunction::EmitConditionalOperatorLValue(), clang::CodeGen::CodeGenFunction::EmitCXXThrowExpr(), clang::CodeGen::CodeGenFunction::EmitLValue(), and clang::Expr::IgnoreParens().

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

◆ emitOMPArraySectionBase()

static Address emitOMPArraySectionBase ( CodeGenFunction &  CGF,
const Expr *  Base,
LValueBaseInfo &  BaseInfo,
TBAAAccessInfo &  TBAAInfo,
QualType  BaseTy,
QualType  ElTy,
bool  IsLowerBound 
)
static

Definition at line 3804 of file CGExpr.cpp.

References clang::CodeGen::CodeGenFunction::Builder, clang::CodeGen::CodeGenFunction::CGM, clang::CodeGen::CodeGenFunction::ConvertType(), clang::CodeGen::CodeGenFunction::ConvertTypeForMem(), clang::CodeGen::CGBuilderTy::CreateConstArrayGEP(), clang::CodeGen::CGBuilderTy::CreateElementBitCast(), clang::CodeGen::CGBuilderTy::CreateLoad(), clang::CodeGen::CodeGenFunction::EmitOMPArraySectionExpr(), clang::CodeGen::CodeGenFunction::EmitPointerWithAlignment(), clang::CodeGen::LValue::getAddress(), clang::CodeGen::LValue::getBaseInfo(), clang::CodeGen::Address::getElementType(), clang::CodeGen::CodeGenModule::getNaturalTypeAlignment(), clang::Expr::IgnoreParenImpCasts(), clang::Type::isArrayType(), clang::Type::isVariableArrayType(), clang::CodeGen::LValueBaseInfo::mergeForCast(), clang::CodeGen::CodeGenModule::mergeTBAAInfoForCast(), and clang::CodeGen::Type.

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

◆ emitPreserveStructAccess()

static Address emitPreserveStructAccess ( CodeGenFunction &  CGF,
LValue  base,
Address  addr,
const FieldDecl *  field 
)
static

Definition at line 4159 of file CGExpr.cpp.

References clang::CodeGen::CodeGenFunction::Builder, clang::CodeGen::CodeGenFunction::CGM, clang::CodeGen::CGBuilderTy::CreatePreserveStructAccessIndex(), clang::CodeGen::CodeGenTypes::getCGRecordLayout(), clang::CodeGen::CodeGenFunction::getDebugInfo(), clang::CodeGen::CodeGenFunction::getDebugInfoFIndex(), clang::FieldDecl::getFieldIndex(), clang::CodeGen::CGRecordLayout::getLLVMFieldNo(), clang::Decl::getLocation(), clang::CodeGen::CGDebugInfo::getOrCreateStandaloneType(), clang::FieldDecl::getParent(), clang::CodeGen::LValue::getType(), and clang::CodeGen::CodeGenModule::getTypes().

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

◆ emitPseudoObjectExpr()

static LValueOrRValue emitPseudoObjectExpr ( CodeGenFunction &  CGF,
const PseudoObjectExpr *  E,
bool  forLValue,
AggValueSlot  slot 
)
static

Definition at line 5256 of file CGExpr.cpp.

References clang::CodeGen::AggValueSlot::asRValue(), clang::CodeGen::Decl, clang::CodeGen::CodeGenFunction::EmitAggExpr(), clang::CodeGen::CodeGenFunction::EmitAnyExpr(), clang::CodeGen::CodeGenFunction::EmitIgnoredExpr(), clang::CodeGen::CodeGenFunction::EmitLValue(), clang::CodeGen::AggValueSlot::getAddress(), clang::PseudoObjectExpr::getResultExpr(), clang::CodeGen::Address::getType(), clang::CodeGen::CodeGenFunction::hasAggregateEvaluationKind(), clang::Expr::isRValue(), clang::CodeGen::CodeGenFunction::MakeAddrLValue(), clang::PseudoObjectExpr::semantics_begin(), and clang::PseudoObjectExpr::semantics_end().

Referenced by clang::CodeGen::CodeGenFunction::EmitPseudoObjectLValue(), and clang::CodeGen::CodeGenFunction::EmitPseudoObjectRValue().

◆ EmitStoreOfMatrixScalar()

static void EmitStoreOfMatrixScalar ( llvm::Value *  value,
LValue  lvalue,
bool  isInit,
CodeGenFunction &  CGF 
)
static

Definition at line 1780 of file CGExpr.cpp.

References clang::CodeGen::CodeGenFunction::EmitStoreOfScalar(), clang::CodeGen::LValue::getAddress(), clang::CodeGen::LValue::getBaseInfo(), clang::CodeGen::LValue::getTBAAInfo(), clang::CodeGen::LValue::getType(), clang::CodeGen::LValue::isNontemporal(), clang::CodeGen::LValue::isVolatile(), and MaybeConvertMatrixAddress().

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

◆ EmitThreadPrivateVarDeclLValue()

static LValue EmitThreadPrivateVarDeclLValue ( CodeGenFunction &  CGF,
const VarDecl *  VD,
QualType  T,
Address  Addr,
llvm::Type *  RealVarTy,
SourceLocation  Loc 
)
static

Definition at line 2398 of file CGExpr.cpp.

References clang::CodeGen::CodeGenFunction::Builder, clang::CodeGen::CodeGenFunction::CGM, clang::CodeGen::CGBuilderTy::CreateElementBitCast(), clang::CodeGen::Decl, clang::CodeGen::CodeGenFunction::OMPBuilderCBHelpers::getAddrOfThreadPrivate(), clang::CodeGen::CodeGenModule::getOpenMPIRBuilder(), clang::CodeGen::CodeGenModule::getOpenMPRuntime(), and clang::CodeGen::CodeGenFunction::MakeAddrLValue().

Referenced by clang::CodeGen::CodeGenFunction::EmitDeclRefLValue(), and EmitGlobalVarDeclLValue().

◆ getArrayElementAlign()

static CharUnits getArrayElementAlign ( CharUnits  arrayAlign,
llvm::Value *  idx,
CharUnits  eltSize 
)
static

Definition at line 3520 of file CGExpr.cpp.

References clang::CharUnits::alignmentAtOffset(), and clang::CharUnits::alignmentOfArrayElement().

Referenced by clang::CodeGen::CodeGenFunction::EmitArraySubscriptExpr(), and emitArraySubscriptGEP().

◆ getArrayIndexingBound()

static llvm::Value* getArrayIndexingBound ( CodeGenFunction &  CGF,
const Expr *  Base,
QualType &  IndexedType 
)
static

If Base is known to point to the start of an array, return the length of that array.

Return 0 if the length cannot be determined.

Definition at line 954 of file CGExpr.cpp.

References clang::CodeGen::CodeGenFunction::Builder, clang::Type::castAsArrayTypeUnsafe(), clang::Type::getAs(), clang::Type::getPointeeOrArrayElementType(), clang::Expr::getType(), clang::CodeGen::CodeGenFunction::getVLASize(), clang::Expr::IgnoreParens(), isFlexibleArrayMemberExpr(), clang::CodeGen::CodeGenFunction::LoadPassedObjectSize(), and clang::CodeGen::CodeGenFunction::VlaSizePair::NumElts.

◆ getFixedSizeElementType()

static QualType getFixedSizeElementType ( const ASTContext &  ctx,
const VariableArrayType *  vla 
)
static

Definition at line 3535 of file CGExpr.cpp.

References clang::ASTContext::getAsVariableArrayType(), and clang::ArrayType::getElementType().

Referenced by emitArraySubscriptGEP().

◆ getRangeForType()

static bool getRangeForType ( CodeGenFunction &  CGF,
QualType  Ty,
llvm::APInt &  Min,
llvm::APInt &  End,
bool  StrictEnums,
bool  IsBool 
)
static

Definition at line 1582 of file CGExpr.cpp.

References clang::CodeGen::CodeGenFunction::CGM, clang::CodeGen::CodeGenFunction::ConvertTypeForMem(), End, clang::Type::getAs(), clang::CodeGen::CodeGenModule::getCodeGenOpts(), clang::CodeGen::CodeGenFunction::getContext(), clang::EnumType::getDecl(), clang::EnumDecl::getIntegerType(), clang::CodeGen::CodeGenFunction::getLangOpts(), clang::CodeGen::CodeGenFunction::getLLVMContext(), clang::EnumDecl::getNumNegativeBits(), clang::EnumDecl::getNumPositiveBits(), clang::ASTContext::getTypeSize(), hasBooleanRepresentation(), clang::EnumDecl::isFixed(), max(), and clang::CodeGen::Type.

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

◆ getRecoverableKind()

static CheckRecoverableKind getRecoverableKind ( SanitizerMask  Kind)
static

Definition at line 3070 of file CGExpr.cpp.

References AlwaysRecoverable, clang::SanitizerMask::countPopulation(), and Unrecoverable.

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

◆ hasAnyVptr()

static bool hasAnyVptr ( const QualType  Type,
const ASTContext &  Context 
)
static

Definition at line 4172 of file CGExpr.cpp.

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

◆ hasBooleanRepresentation()

static bool hasBooleanRepresentation ( QualType  Ty)
static

Definition at line 1569 of file CGExpr.cpp.

References clang::Type::getAs(), and clang::Type::isBooleanType().

Referenced by clang::CodeGen::CodeGenFunction::EmitFromMemory(), clang::CodeGen::CodeGenFunction::EmitScalarRangeCheck(), clang::CodeGen::CodeGenFunction::EmitStoreThroughBitfieldLValue(), clang::CodeGen::CodeGenFunction::EmitToMemory(), and getRangeForType().

◆ isAAPCS()

static bool isAAPCS ( const TargetInfo &  TargetInfo)
static

Helper method to check if the underlying ABI is AAPCS.

Definition at line 431 of file CGExpr.cpp.

References clang::CodeGen::CodeGenFunction::EmitMaterializeTemporaryExpr(), and clang::TargetInfo::getABI().

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

◆ isConstantEmittableObjectType()

static bool isConstantEmittableObjectType ( QualType  type)
static

Given an object of the given canonical type, can we safely copy a value out of it based on its initializer?

Definition at line 1421 of file CGExpr.cpp.

References clang::QualType::getLocalQualifiers(), clang::QualType::isCanonical(), and clang::Type::isReferenceType().

Referenced by checkVarTypeForConstantEmission().

◆ isFlexibleArrayMemberExpr()

static bool isFlexibleArrayMemberExpr ( const Expr *  E)
static

Determine whether this expression refers to a flexible array member in a struct.

We disable array bounds checks for such members.

Definition at line 877 of file CGExpr.cpp.

References clang::Type::castAsArrayTypeUnsafe(), clang::Expr::getType(), and clang::Expr::IgnoreParens().

Referenced by getArrayIndexingBound().

◆ IsPreserveAIArrayBase()

static bool IsPreserveAIArrayBase ( CodeGenFunction &  CGF,
const Expr *  ArrayBase 
)
static

Given an array base, check whether its member access belongs to a record with preserve_access_index attribute or not.

Definition at line 3546 of file CGExpr.cpp.

References clang::Type::getAs(), clang::CodeGen::CodeGenFunction::getDebugInfo(), clang::PointerType::getPointeeType(), clang::ValueDecl::getType(), clang::Type::getUnqualifiedDesugaredType(), clang::Type::hasAttr(), and clang::Expr::IgnoreImpCasts().

Referenced by emitArraySubscriptGEP().

◆ isSimpleArrayDecayOperand()

static const Expr* isSimpleArrayDecayOperand ( const Expr *  E)
static

isSimpleArrayDecayOperand - If the specified expr is a simple decay from an array to pointer, return the array subexpression.

Definition at line 3490 of file CGExpr.cpp.

References clang::Expr::getType(), and clang::Type::isVariableArrayType().

Referenced by clang::CodeGen::CodeGenFunction::EmitArraySubscriptExpr(), and clang::CodeGen::CodeGenFunction::EmitOMPArraySectionExpr().

◆ MaybeConvertMatrixAddress()

static Address MaybeConvertMatrixAddress ( Address  Addr,
CodeGenFunction &  CGF,
bool  IsVector = true 
)
static

Definition at line 1755 of file CGExpr.cpp.

References clang::CodeGen::CodeGenFunction::Builder, clang::CodeGen::CGBuilderTy::CreateElementBitCast(), and clang::CodeGen::Address::getPointer().

Referenced by EmitLoadOfMatrixLValue(), clang::CodeGen::CodeGenFunction::EmitMatrixSubscriptExpr(), and EmitStoreOfMatrixScalar().

◆ pushTemporaryCleanup()

static void pushTemporaryCleanup ( CodeGenFunction &  CGF,
const MaterializeTemporaryExpr *  M,
const Expr *  E,
Address  ReferenceTemporary 
)
static

Definition at line 266 of file CGExpr.cpp.

References clang::CodeGen::CodeGenFunction::CGM, clang::interp::Destroy(), clang::CodeGen::CodeGenFunction::destroyARCStrongImprecise, clang::CodeGen::CodeGenFunction::destroyARCStrongPrecise, clang::CodeGen::CodeGenFunction::destroyARCWeak, clang::CodeGen::CodeGenFunction::destroyCXXObject, clang::Dtor_Complete, clang::CodeGen::EHCleanup, clang::CodeGen::CodeGenFunction::generateDestroyHelper(), clang::CodeGen::CodeGenModule::getAddrAndTypeOfCXXStructor(), clang::CodeGen::CodeGenFunction::getARCCleanupKind(), clang::Type::getAs(), clang::Type::getBaseElementTypeUnsafe(), clang::CodeGen::CodeGenModule::getCXXABI(), clang::MaterializeTemporaryExpr::getExtendingDecl(), clang::CodeGen::CodeGenFunction::getLangOpts(), clang::QualType::getObjCLifetime(), clang::CodeGen::Address::getPointer(), clang::MaterializeTemporaryExpr::getStorageDuration(), clang::Expr::getType(), clang::Decl::hasAttr(), clang::CodeGen::CodeGenTypeCache::Int8PtrTy, clang::Type::isArrayType(), 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::pushDestroy(), clang::CodeGen::CodeGenFunction::pushLifetimeExtendedDestroy(), clang::CodeGen::CGCXXABI::registerGlobalDtor(), clang::SD_Automatic, clang::SD_Dynamic, clang::SD_FullExpression, clang::SD_Static, and clang::SD_Thread.

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

◆ setObjCGCLValueClass()

static void setObjCGCLValueClass ( const ASTContext &  Ctx,
const Expr *  E,
LValue &  LV,
bool  IsMemberAccess = false 
)
static

Definition at line 2293 of file CGExpr.cpp.

References clang::Type::castAs(), clang::ASTContext::getLangOpts(), clang::PointerType::getPointeeType(), clang::Expr::getType(), clang::Type::isArrayType(), clang::CodeGen::LValue::isGlobalObjCRef(), clang::CodeGen::LValue::isObjCArray(), clang::CodeGen::LValue::isObjCIvar(), clang::Type::isPointerType(), clang::Type::isRecordType(), clang::LangOptions::NonGC, clang::CodeGen::LValue::setBaseIvarExp(), clang::CodeGen::LValue::setGlobalObjCRef(), clang::CodeGen::LValue::setObjCArray(), clang::CodeGen::LValue::setObjCIvar(), clang::CodeGen::LValue::setThreadLocalRef(), and clang::VarDecl::TLS_None.

Referenced by clang::CodeGen::CodeGenFunction::EmitArraySubscriptExpr(), clang::CodeGen::CodeGenFunction::EmitDeclRefLValue(), EmitGlobalVarDeclLValue(), clang::CodeGen::CodeGenFunction::EmitMemberExpr(), and clang::CodeGen::CodeGenFunction::EmitObjCIvarRefLValue().

◆ tryToConvertMemberExprToDeclRefExpr()

static DeclRefExpr* tryToConvertMemberExprToDeclRefExpr ( CodeGenFunction &  CGF,
const MemberExpr *  ME 
)
static

Definition at line 1533 of file CGExpr.cpp.

References clang::DeclRefExpr::Create(), clang::CodeGen::CodeGenFunction::getContext(), clang::MemberExpr::getExprLoc(), clang::MemberExpr::getMemberDecl(), clang::Expr::getType(), clang::Expr::getValueKind(), and clang::MemberExpr::isNonOdrUse().

Referenced by clang::CodeGen::CodeGenFunction::EmitMemberExpr(), and clang::CodeGen::CodeGenFunction::tryEmitAsConstant().

Variable Documentation

◆ SanitizerHandlers

const SanitizerHandlerInfo SanitizerHandlers[]
Initial value:
= {
#define SANITIZER_CHECK(Enum, Name, Version)
LIST_SANITIZER_CHECKS
}
LIST_SANITIZER_CHECKS
#define LIST_SANITIZER_CHECKS
Definition: CodeGenFunction.h:117

Definition at line 3087 of file CGExpr.cpp.

Generated on Thu Jul 2 2020 00:59:57 for clang by   doxygen 1.8.13