v8::internal::Representation Class Reference

#include <property-details.h>

Collaboration diagram for v8::internal::Representation:

Public Types
enum	Kind {   kNone , kInteger8 , kUInteger8 , kInteger16 ,   kUInteger16 , kSmi , kInteger32 , kDouble ,   kHeapObject , kTagged , kExternal , kNumRepresentations }

Public Member Functions
	Representation ()
bool	Equals (const Representation &other) const
bool	IsCompatibleForLoad (const Representation &other) const
bool	IsCompatibleForStore (const Representation &other) const
bool	is_more_general_than (const Representation &other) const
bool	fits_into (const Representation &other) const
Representation	generalize (Representation other)
int	size () const
Kind	kind () const
bool	IsNone () const
bool	IsInteger8 () const
bool	IsUInteger8 () const
bool	IsInteger16 () const
bool	IsUInteger16 () const
bool	IsTagged () const
bool	IsSmi () const
bool	IsSmiOrTagged () const
bool	IsInteger32 () const
bool	IsSmiOrInteger32 () const
bool	IsDouble () const
bool	IsHeapObject () const
bool	IsExternal () const
bool	IsSpecialization () const
const char *	Mnemonic () const

Static Public Member Functions
static Representation	None ()
static Representation	Tagged ()
static Representation	Integer8 ()
static Representation	UInteger8 ()
static Representation	Integer16 ()
static Representation	UInteger16 ()
static Representation	Smi ()
static Representation	Integer32 ()
static Representation	Double ()
static Representation	HeapObject ()
static Representation	External ()
static Representation	FromKind (Kind kind)
static Representation	FromType (Type *type)

Private Member Functions
	Representation (Kind k)
	STATIC_ASSERT (kNumRepresentations<=(1<< kBitsPerByte))

Private Attributes
int8_t	kind_

Detailed Description

Definition at line 57 of file property-details.h.

Member Enumeration Documentation

Kind

enum v8::internal::Representation::Kind

Enumerator
kNone
kInteger8
kUInteger8
kInteger16
kUInteger16
kSmi
kInteger32
kDouble
kHeapObject
kTagged
kExternal
kNumRepresentations

Definition at line 59 of file property-details.h.

            {
    kNone,
    kInteger8,
    kUInteger8,
    kInteger16,
    kUInteger16,
    kSmi,
    kInteger32,
    kDouble,
    kHeapObject,
    kTagged,
    kExternal,
    kNumRepresentations
  };

Constructor & Destructor Documentation

Representation() [1/2]

v8::internal::Representation::Representation ( )

inline

Definition at line 74 of file property-details.h.

: kind_(kNone) { }

Referenced by Double(), External(), FromKind(), HeapObject(), Integer16(), Integer32(), Integer8(), None(), Smi(), Tagged(), UInteger16(), and UInteger8().

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Representation() [2/2]

v8::internal::Representation::Representation ( Kind  k )

inlineexplicitprivate

Definition at line 164 of file property-details.h.

: kind_(k) { }

Member Function Documentation

Double()

static Representation v8::internal::Representation::Double ( )

inlinestatic

Definition at line 84 of file property-details.h.

{ return Representation(kDouble); }

References kDouble, and Representation().

Referenced by v8::internal::HOptimizedGraphBuilder::BuildArrayIndexOf(), v8::internal::CodeStubGraphBuilderBase::BuildLoadNamedField(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::ForHeapNumberValue(), FromType(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HConstructDouble(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HLoadKeyed(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HPower(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HUnaryMathOperation(), v8::internal::HValue::KnownOptimalRepresentation(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::KnownOptimalRepresentation(), v8::internal::Object::OptimalRepresentation(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::RepresentationFromInputs(), v8::internal::HValue::RepresentationFromUses(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::RequiredInputRepresentation(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::RequiredValueRepresentation(), v8::internal::HInferRepresentationPhase::Run(), and v8::internal::RUNTIME_FUNCTION().

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Equals()

bool v8::internal::Representation::Equals ( const Representation &  other ) const

inline

Definition at line 92 of file property-details.h.

                                                 {
    return kind_ == other.kind_;
  }

References kind_.

Referenced by v8::internal::HValue::Equals(), fits_into(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HChange(), v8::internal::HRepresentationChangesPhase::InsertRepresentationChangesForValue(), IsCompatibleForStore(), v8::internal::JSObject::PrintInstanceMigration(), v8::internal::HValue::RepresentationFromUseRequirements(), and v8::internal::HRangeAnalysisPhase::Run().

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External()

static Representation v8::internal::Representation::External ( )

inlinestatic

Definition at line 86 of file property-details.h.

{ return Representation(kExternal); }

References kExternal, and Representation().

Referenced by v8::internal::FINAL< kOperandKind, kNumCachedOperands >::ForExternalArrayExternalPointer(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::ForJSArrayBufferBackingStore(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::KnownOptimalRepresentation(), and v8::internal::FINAL< kOperandKind, kNumCachedOperands >::RequiredInputRepresentation().

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fits_into()

bool v8::internal::Representation::fits_into ( const Representation &  other ) const

inline

Definition at line 118 of file property-details.h.

                                                    {
    return other.is_more_general_than(*this) || other.Equals(*this);
  }

References Equals(), and is_more_general_than().

Referenced by generalize(), and v8::internal::Map::GeneralizeRepresentation().

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FromKind()

static Representation v8::internal::Representation::FromKind ( Kind  kind )

inlinestatic

Definition at line 88 of file property-details.h.

{ return Representation(kind); }

References kind(), and Representation().

Referenced by v8::internal::BASE_EMBEDDED< Visitor >::DecodeRepresentation(), v8::internal::StoreGlobalStub::representation(), and v8::internal::FINAL< kOperandKind, kNumCachedOperands >::representation().

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FromType()

Representation v8::internal::Representation::FromType ( Type *  type )

static

Definition at line 16 of file property-details-inl.h.

                                                  {
  DisallowHeapAllocation no_allocation;
  if (type->Is(Type::None())) return Representation::None();
  if (type->Is(Type::SignedSmall())) return Representation::Smi();
  if (type->Is(Type::Signed32())) return Representation::Integer32();
  if (type->Is(Type::Number())) return Representation::Double();
  return Representation::Tagged();
}

References Double(), Integer32(), v8::internal::TypeImpl< Config >::Is(), v8::None, None(), Smi(), and Tagged().

Referenced by v8::internal::HGraphBuilder::BuildBinaryOperation(), v8::internal::HOptimizedGraphBuilder::BuildCompareInstruction(), and v8::internal::HOptimizedGraphBuilder::BuildIncrement().

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generalize()

Representation v8::internal::Representation::generalize ( Representation  other )

inline

Definition at line 122 of file property-details.h.

                                                  {
    if (other.fits_into(*this)) return *this;
    if (other.is_more_general_than(*this)) return other;
    return Representation::Tagged();
  }

References fits_into(), is_more_general_than(), and Tagged().

Referenced by v8::internal::Map::GeneralizeRepresentation(), v8::internal::HCompareNumericAndBranch::InferRepresentation(), v8::internal::HBinaryOperation::RepresentationFromInputs(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::RepresentationFromInputs(), and v8::internal::HValue::RepresentationFromUseRequirements().

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HeapObject()

static Representation v8::internal::Representation::HeapObject ( )

inlinestatic

Definition at line 85 of file property-details.h.

{ return Representation(kHeapObject); }

References kHeapObject, and Representation().

Referenced by v8::internal::Object::OptimalRepresentation().

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Integer16()

static Representation v8::internal::Representation::Integer16 ( )

inlinestatic

Definition at line 80 of file property-details.h.

{ return Representation(kInteger16); }

References kInteger16, and Representation().

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Integer32()

static Representation v8::internal::Representation::Integer32 ( )

inlinestatic

Definition at line 83 of file property-details.h.

{ return Representation(kInteger32); }

References kInteger32, and Representation().

Referenced by v8::internal::HGraphBuilder::EnforceNumberType(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::ForCounter(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::ForHeapNumberValueHighestBits(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::ForHeapNumberValueLowestBits(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::ForMapAsInteger32(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::ForNameHashField(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::ForStringHashField(), FromType(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HArgumentsLength(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HClampToUint8(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HDoubleBits(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HLoadKeyed(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HLoadNamedField(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HMathFloorOfDiv(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HRor(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HSeqStringGetChar(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HStringCharCodeAt(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HUnaryMathOperation(), v8::internal::HValue::InferRepresentation(), v8::internal::HBitwiseBinaryOperation::initialize_output_representation(), v8::internal::ArrayInstructionInterface::KeyedAccessIndexRequirement(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::KnownOptimalRepresentation(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::NewImul(), v8::internal::HBitwiseBinaryOperation::observed_input_representation(), v8::internal::HValue::RepresentationFromUses(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::RequiredInputRepresentation(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::RequiredValueRepresentation(), v8::internal::LCodeGen::ToInteger32(), v8::internal::HBinaryOperation::UpdateRepresentation(), v8::internal::HBitwiseBinaryOperation::UpdateRepresentation(), and v8::internal::FINAL< kOperandKind, kNumCachedOperands >::UpdateRepresentation().

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Integer8()

static Representation v8::internal::Representation::Integer8 ( )

inlinestatic

Definition at line 78 of file property-details.h.

{ return Representation(kInteger8); }

References kInteger8, and Representation().

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is_more_general_than()

bool v8::internal::Representation::is_more_general_than ( const Representation &  other ) const

inline

Definition at line 105 of file property-details.h.

                                                               {
    if (kind_ == kExternal && other.kind_ == kNone) return true;
    if (kind_ == kExternal && other.kind_ == kExternal) return false;
    if (kind_ == kNone && other.kind_ == kExternal) return false;
 
    DCHECK(kind_ != kExternal);
    DCHECK(other.kind_ != kExternal);
    if (IsHeapObject()) return other.IsNone();
    if (kind_ == kUInteger8 && other.kind_ == kInteger8) return false;
    if (kind_ == kUInteger16 && other.kind_ == kInteger16) return false;
    return kind_ > other.kind_;
  }

References DCHECK, IsHeapObject(), IsNone(), kExternal, kind_, kInteger16, kInteger8, kNone, kUInteger16, and kUInteger8.

Referenced by fits_into(), generalize(), and v8::internal::HValue::UpdateRepresentation().

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IsCompatibleForLoad()

bool v8::internal::Representation::IsCompatibleForLoad ( const Representation &  other ) const

inline

Definition at line 96 of file property-details.h.

                                                              {
    return (IsDouble() && other.IsDouble()) ||
        (!IsDouble() && !other.IsDouble());
  }

References IsDouble().

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IsCompatibleForStore()

bool v8::internal::Representation::IsCompatibleForStore ( const Representation &  other ) const

inline

Definition at line 101 of file property-details.h.

                                                               {
    return Equals(other);
  }

References Equals().

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IsDouble()

bool v8::internal::Representation::IsDouble ( ) const

inline

Definition at line 153 of file property-details.h.

{ return kind_ == kDouble; }

References kDouble, and kind_.

Referenced by v8::internal::HOptimizedGraphBuilder::BuildEmitInObjectProperties(), v8::internal::HOptimizedGraphBuilder::BuildIncrement(), v8::internal::CodeStubGraphBuilderBase::BuildStoreNamedField(), v8::internal::LCodeGen::EmitLoadDoubleRegister(), v8::internal::LCodeGen::EmitLoadRegister(), v8::internal::V8HeapExplorer::ExtractPropertyReferences(), v8::internal::Object::FitsRepresentation(), v8::internal::Map::GeneralizeRepresentation(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HLoadNamedField(), v8::internal::HCompareNumericAndBranch::InferRepresentation(), v8::internal::HBitwiseBinaryOperation::initialize_output_representation(), IsCompatibleForLoad(), IsSpecialization(), v8::internal::HEscapeAnalysisPhase::NewLoadReplacement(), v8::internal::Object::NewStorageFor(), v8::internal::HBitwiseBinaryOperation::observed_input_representation(), v8::internal::LCodeGen::ToOperand(), v8::internal::HValue::ToStringOrToNumberCanBeObserved(), and v8::internal::Object::WrapForRead().

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IsExternal()

bool v8::internal::Representation::IsExternal ( ) const

inline

Definition at line 155 of file property-details.h.

{ return kind_ == kExternal; }

References kExternal, and kind_.

Referenced by v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HLoadNamedField().

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IsHeapObject()

bool v8::internal::Representation::IsHeapObject ( ) const

inline

Definition at line 154 of file property-details.h.

{ return kind_ == kHeapObject; }

References kHeapObject, and kind_.

Referenced by v8::internal::CodeStubGraphBuilderBase::BuildStoreNamedField(), v8::internal::Object::FitsRepresentation(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HLoadNamedField(), is_more_general_than(), and v8::internal::Object::OptimalType().

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IsInteger16()

bool v8::internal::Representation::IsInteger16 ( ) const

inline

Definition at line 146 of file property-details.h.

{ return kind_ == kInteger16; }

References kind_, and kInteger16.

Referenced by v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HLoadNamedField(), IsSpecialization(), and size().

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IsInteger32()

bool v8::internal::Representation::IsInteger32 ( ) const

inline

Definition at line 151 of file property-details.h.

{ return kind_ == kInteger32; }

References kind_, and kInteger32.

Referenced by v8::internal::LCodeGen::EmitLoadDoubleRegister(), v8::internal::LCodeGen::EmitLoadRegister(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HLoadNamedField(), v8::internal::HBinaryOperation::IgnoreObservedOutputRepresentation(), v8::internal::IsNonDeoptingIntToSmiChange(), IsSmiOrInteger32(), IsSpecialization(), v8::internal::ArrayInstructionInterface::KeyedAccessIndexRequirement(), v8::internal::LCodeGen::PrepareKeyedArrayOperand(), v8::internal::HValue::RepresentationFromUseRequirements(), v8::internal::HCanonicalizePhase::Run(), v8::internal::HUint32AnalysisPhase::Run(), size(), v8::internal::LCodeGen::ToOperand(), v8::internal::LCodeGen::ToOperand32(), v8::internal::LCodeGen::ToRepresentation(), and v8::internal::LCodeGen::ToRepresentation_donotuse().

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IsInteger8()

bool v8::internal::Representation::IsInteger8 ( ) const

inline

Definition at line 144 of file property-details.h.

{ return kind_ == kInteger8; }

References kind_, and kInteger8.

Referenced by v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HLoadNamedField(), IsSpecialization(), and size().

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IsNone()

bool v8::internal::Representation::IsNone ( ) const

inline

Definition at line 143 of file property-details.h.

{ return kind_ == kNone; }

References kind_, and kNone.

Referenced by v8::internal::HOptimizedGraphBuilder::BuildCompareInstruction(), v8::internal::HOptimizedGraphBuilder::BuildIncrement(), v8::internal::Object::FitsRepresentation(), v8::internal::Map::GeneralizeRepresentation(), v8::internal::HValue::HasNonSmiUse(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HChange(), v8::internal::HRangeAnalysisPhase::InferRange(), v8::internal::HCompareNumericAndBranch::InferRepresentation(), v8::internal::HRepresentationChangesPhase::InsertRepresentationChangesForValue(), is_more_general_than(), v8::internal::Object::OptimalType(), v8::internal::HValue::RepresentationFromUseRequirements(), v8::internal::HValue::RepresentationFromUses(), v8::internal::HInferRepresentationPhase::Run(), v8::internal::HValue::set_representation(), v8::internal::DescriptorArray::SetRepresentation(), and size().

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IsSmi()

bool v8::internal::Representation::IsSmi ( ) const

inline

Definition at line 149 of file property-details.h.

{ return kind_ == kSmi; }

References kind_, and kSmi.

Referenced by v8::internal::HGraphBuilder::BuildBinaryOperation(), v8::internal::HOptimizedGraphBuilder::BuildEmitInObjectProperties(), v8::internal::ConvertAndSetOverflow(), v8::internal::ExternalArrayOpRequiresTemp(), v8::internal::V8HeapExplorer::ExtractPropertyReferences(), v8::internal::Object::FitsRepresentation(), v8::internal::HValue::HasNonSmiUse(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HBitwise(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HChange(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HLoadNamedField(), v8::internal::HBinaryOperation::IgnoreObservedOutputRepresentation(), v8::internal::IsNonDeoptingIntToSmiChange(), IsSmiOrInteger32(), IsSmiOrTagged(), IsSpecialization(), v8::internal::Object::NewStorageFor(), v8::internal::HCanonicalizePhase::Run(), v8::internal::HRepresentationChangesPhase::Run(), v8::internal::LCodeGen::ToOperand(), and v8::internal::HBinaryOperation::UpdateRepresentation().

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IsSmiOrInteger32()

bool v8::internal::Representation::IsSmiOrInteger32 ( ) const

inline

Definition at line 152 of file property-details.h.

{ return IsSmi() || IsInteger32(); }

References IsInteger32(), and IsSmi().

Referenced by v8::internal::DehoistArrayIndex(), v8::internal::HRangeAnalysisPhase::InferControlFlowRange(), v8::internal::HCompareNumericAndBranch::InferRepresentation(), v8::internal::HEscapeAnalysisPhase::NewLoadReplacement(), v8::internal::HRangeAnalysisPhase::Run(), v8::internal::HRepresentationChangesPhase::Run(), and v8::internal::HValue::ToStringOrToNumberCanBeObserved().

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IsSmiOrTagged()

bool v8::internal::Representation::IsSmiOrTagged ( ) const

inline

Definition at line 150 of file property-details.h.

{ return IsSmi() || IsTagged(); }

References IsSmi(), and IsTagged().

Referenced by v8::internal::FINAL< kOperandKind, kNumCachedOperands >::AddValue(), v8::internal::LCodeGen::EmitLoadRegister(), v8::internal::LCodeGen::ToRepresentation(), and v8::internal::LCodeGen::ToRepresentation_donotuse().

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IsSpecialization()

bool v8::internal::Representation::IsSpecialization ( ) const

inline

Definition at line 156 of file property-details.h.

                                {
    return IsInteger8() || IsUInteger8() ||
      IsInteger16() || IsUInteger16() ||
      IsSmi() || IsInteger32() || IsDouble();
  }

References IsDouble(), IsInteger16(), IsInteger32(), IsInteger8(), IsSmi(), IsUInteger16(), and IsUInteger8().

Referenced by v8::internal::IsIdentityOperation().

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IsTagged()

bool v8::internal::Representation::IsTagged ( ) const

inline

Definition at line 148 of file property-details.h.

{ return kind_ == kTagged; }

References kind_, and kTagged.

Referenced by v8::internal::HInferRepresentationPhase::AddToWorklist(), v8::internal::HGraphBuilder::BuildBinaryOperation(), v8::internal::HOptimizedGraphBuilder::BuildCompareInstruction(), v8::internal::HOptimizedGraphBuilder::BuildIncrement(), v8::internal::HValue::ChangeRepresentation(), v8::internal::LCodeGen::EmitLoadDoubleRegister(), v8::internal::HValue::HasNonSmiUse(), v8::internal::HCompareNumericAndBranch::InferRepresentation(), IsSmiOrTagged(), v8::internal::HValue::KnownOptimalRepresentation(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::observed_input_representation(), v8::internal::operator<<(), v8::internal::HBinaryOperation::RepresentationFromInputs(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::RepresentationFromInputs(), v8::internal::LCodeGen::ToOperand(), and v8::internal::HValue::UpdateRepresentation().

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IsUInteger16()

bool v8::internal::Representation::IsUInteger16 ( ) const

inline

Definition at line 147 of file property-details.h.

{ return kind_ == kUInteger16; }

References kind_, and kUInteger16.

Referenced by v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HLoadNamedField(), IsSpecialization(), and size().

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IsUInteger8()

bool v8::internal::Representation::IsUInteger8 ( ) const

inline

Definition at line 145 of file property-details.h.

{ return kind_ == kUInteger8; }

References kind_, and kUInteger8.

Referenced by v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HLoadNamedField(), IsSpecialization(), and size().

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kind()

Kind v8::internal::Representation::kind ( ) const

inline

Definition at line 142 of file property-details.h.

{ return static_cast<Kind>(kind_); }

References kind_.

Referenced by v8::internal::BASE_EMBEDDED< Visitor >::EncodeRepresentation(), FromKind(), v8::internal::HValue::RepresentationFromUses(), and v8::internal::StoreGlobalStub::set_representation().

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Mnemonic()

const char * v8::internal::Representation::Mnemonic

(

)

const

Definition at line 1828 of file objects.cc.

                                           {
  switch (kind_) {
    case kNone: return "v";
    case kTagged: return "t";
    case kSmi: return "s";
    case kDouble: return "d";
    case kInteger32: return "i";
    case kHeapObject: return "h";
    case kExternal: return "x";
    default:
      UNREACHABLE();
      return NULL;
  }
}

Referenced by v8::internal::operator<<(), v8::internal::Map::PrintGeneralization(), v8::internal::JSObject::PrintInstanceMigration(), v8::internal::HValue::RepresentationFromUses(), and v8::internal::HValue::UpdateRepresentation().

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None()

static Representation v8::internal::Representation::None ( )

inlinestatic

Definition at line 76 of file property-details.h.

{ return Representation(kNone); }

References kNone, and Representation().

Referenced by FromType(), v8::internal::HBinaryOperation::HBinaryOperation(), v8::internal::Runtime::InitializeIntrinsicFunctionNames(), v8::internal::HValue::KnownOptimalRepresentation(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::KnownOptimalRepresentation(), v8::internal::BASE_EMBEDDED< Visitor >::NotFound(), v8::internal::HValue::observed_input_representation(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::observed_input_representation(), v8::internal::Object::OptimalRepresentation(), v8::internal::HValue::RepresentationFromUses(), v8::internal::HDematerializedObject::RequiredInputRepresentation(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::RequiredInputRepresentation(), v8::internal::HIsConstructCallAndBranch::RequiredInputRepresentation(), v8::internal::RUNTIME_FUNCTION(), and v8::internal::Map::Update().

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size()

int v8::internal::Representation::size ( ) const

inline

Definition at line 128 of file property-details.h.

                   {
    DCHECK(!IsNone());
    if (IsInteger8() || IsUInteger8()) {
      return sizeof(uint8_t);
    }
    if (IsInteger16() || IsUInteger16()) {
      return sizeof(uint16_t);
    }
    if (IsInteger32()) {
      return sizeof(uint32_t);
    }
    return kPointerSize;
  }

References DCHECK, IsInteger16(), IsInteger32(), IsInteger8(), IsNone(), IsUInteger16(), IsUInteger8(), and v8::internal::kPointerSize.

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Smi()

static Representation v8::internal::Representation::Smi ( )

inlinestatic

Definition at line 82 of file property-details.h.

{ return Representation(kSmi); }

References kSmi, and Representation().

Referenced by v8::internal::HOptimizedGraphBuilder::BuildAllocateExternalElements(), v8::internal::HOptimizedGraphBuilder::BuildAllocateFixedTypedArray(), v8::internal::HOptimizedGraphBuilder::BuildArrayIndexOf(), v8::internal::CodeStubGraphBuilder< Stub >::BuildCodeStub(), v8::internal::HOptimizedGraphBuilder::BuildIncrement(), v8::internal::HGraphBuilder::EnforceNumberType(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::ForArrayLength(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::ForFixedArrayLength(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::ForStringLength(), FromType(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HCheckSmi(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HLoadKeyed(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HMapEnumLength(), v8::internal::ArrayInstructionInterface::KeyedAccessIndexRequirement(), v8::internal::HValue::KnownOptimalRepresentation(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::KnownOptimalRepresentation(), v8::internal::Object::OptimalRepresentation(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::RepresentationFromInputs(), v8::internal::HValue::RepresentationFromUses(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::RequiredInputRepresentation(), and v8::internal::FINAL< kOperandKind, kNumCachedOperands >::RequiredValueRepresentation().

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STATIC_ASSERT()

v8::internal::Representation::STATIC_ASSERT ( kNumRepresentations<=  1<< kBitsPerByte )

private

Tagged()

static Representation v8::internal::Representation::Tagged ( )

inlinestatic

Definition at line 77 of file property-details.h.

{ return Representation(kTagged); }

References kTagged, and Representation().

Referenced by v8::internal::CodeStubGraphBuilder< Stub >::BuildCodeStub(), v8::internal::CodeStubGraphBuilderBase::BuildLoadNamedField(), v8::internal::HOptimizedGraphBuilder::BuildLoadNamedField(), v8::internal::CodeStubGraphBuilderBase::BuildStoreNamedField(), v8::internal::HOptimizedGraphBuilder::BuildStoreNamedField(), v8::internal::Map::CopyGeneralizeAllRepresentations(), v8::internal::Map::CopyReplaceDescriptors(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::CreateAndInsertAfter(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::CreateAndInsertBefore(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::ForAllocationSiteList(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::ForArrayLength(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::ForJSArrayBufferByteLength(), FromType(), generalize(), v8::internal::Map::GeneralizeAllFieldRepresentations(), v8::internal::JSObject::GetHiddenPropertiesHashTable(), v8::internal::HStringCompareAndBranch::GetInputRepresentation(), v8::internal::CallInterfaceDescriptor::GetParameterRepresentation(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HAccessArgumentsAt(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HAllocate(), v8::internal::HAllocateBlockContext::HAllocateBlockContext(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HApplyArguments(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HArgumentsElements(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HArgumentsObject(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HCallWithDescriptor(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HCapturedObject(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HCheckHeapObject(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HCheckInstanceType(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HCheckMaps(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HCheckMapValue(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HCheckValue(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HCompareGeneric(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HCompareMap(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HContext(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HDateField(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HDeclareGlobals(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HDummyUse(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HForInCacheArray(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HForInPrepareMap(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HFunctionLiteral(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HGetCachedArrayIndex(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HInnerAllocatedObject(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HInstanceOf(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HInstanceOfKnownGlobal(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HIsSmiAndBranch(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HLoadContextSlot(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HLoadFieldByIndex(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HLoadFunctionPrototype(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HLoadGlobalCell(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HLoadGlobalGeneric(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HLoadKeyed(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HLoadKeyedGeneric(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HLoadNamedField(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HLoadNamedGeneric(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HParameter(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HPushArguments(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HSeqStringSetChar(), v8::internal::HStoreFrameContext::HStoreFrameContext(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HStringAdd(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HStringCharFromCode(), v8::internal::HStringCompareAndBranch::HStringCompareAndBranch(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HThisFunction(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HToFastProperties(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HTransitionElementsKind(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HTypeof(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HUnknownOSRValue(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::HWrapReceiver(), v8::internal::CallInterfaceDescriptorData::Initialize(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::KnownOptimalRepresentation(), v8::internal::JSObject::MigrateSlowToFast(), v8::internal::HBinaryOperation::observed_input_representation(), v8::internal::HCompareObjectEqAndBranch::observed_input_representation(), v8::internal::Object::OptimalRepresentation(), v8::internal::HValue::RepresentationFromUses(), v8::internal::HStoreFrameContext::RequiredInputRepresentation(), v8::internal::HAllocateBlockContext::RequiredInputRepresentation(), v8::internal::HUnaryCall::RequiredInputRepresentation(), v8::internal::HBinaryCall::RequiredInputRepresentation(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::RequiredInputRepresentation(), v8::internal::HBinaryOperation::RequiredInputRepresentation(), v8::internal::HCompareObjectEqAndBranch::RequiredInputRepresentation(), v8::internal::HStringCompareAndBranch::RequiredInputRepresentation(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::RequiredValueRepresentation(), and v8::internal::HInferRepresentationPhase::Run().

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UInteger16()

static Representation v8::internal::Representation::UInteger16 ( )

inlinestatic

Definition at line 81 of file property-details.h.

{ return Representation(kUInteger16); }

References kUInteger16, and Representation().

Referenced by v8::internal::FINAL< kOperandKind, kNumCachedOperands >::ForMapInstanceTypeAndBitField().

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UInteger8()

static Representation v8::internal::Representation::UInteger8 ( )

inlinestatic

Definition at line 79 of file property-details.h.

{ return Representation(kUInteger8); }

References kUInteger8, and Representation().

Referenced by v8::internal::FINAL< kOperandKind, kNumCachedOperands >::ForExternalUInteger8(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::ForMapBitField(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::ForMapBitField2(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::ForMapInObjectProperties(), v8::internal::FINAL< kOperandKind, kNumCachedOperands >::ForMapInstanceSize(), and v8::internal::FINAL< kOperandKind, kNumCachedOperands >::ForMapInstanceType().

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Member Data Documentation

kind_

int8_t v8::internal::Representation::kind_

private

Definition at line 169 of file property-details.h.

Referenced by Equals(), is_more_general_than(), IsDouble(), IsExternal(), IsHeapObject(), IsInteger16(), IsInteger32(), IsInteger8(), IsNone(), IsSmi(), IsTagged(), IsUInteger16(), IsUInteger8(), and kind().

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The documentation for this class was generated from the following files:

• /mnt/V8SourceCode/src/property-details.h
• /mnt/V8SourceCode/src/objects.cc
• /mnt/V8SourceCode/src/property-details-inl.h