#include <hydrogen-instructions.h>

Inheritance diagram for HValue:

Collaboration diagram for HValue:

Public Types
enum	Flag { kFlexibleRepresentation, kCannotBeTagged, kUseGVN, kTrackSideEffectDominators, kCanOverflow, kBailoutOnMinusZero, kCanBeDivByZero, kLeftCanBeMinInt, kLeftCanBeNegative, kLeftCanBePositive, kAllowUndefinedAsNaN, kIsArguments, kTruncatingToInt32, kAllUsesTruncatingToInt32, kTruncatingToSmi, kAllUsesTruncatingToSmi, kIsDead, kUint32, kHasNoObservableSideEffects, kIsLive, kEndsLiveRange = kIsLive, kLastFlag = kIsLive }

enum	Opcode { kPhi }

Public Member Functions
	STATIC_ASSERT (kLastFlag< kBitsPerInt)

virtual Opcode	opcode () const =0

bool	IsPhi () const

	HValue (HType type=HType::Tagged())

virtual	~HValue ()

virtual HSourcePosition	position () const

virtual HSourcePosition	operand_position (int index) const

HBasicBlock *	block () const

void	SetBlock (HBasicBlock *block)

Isolate *	isolate () const

int	id () const

void	set_id (int id)

HUseIterator	uses () const

virtual bool	EmitAtUses ()

Representation	representation () const

void	ChangeRepresentation (Representation r)

virtual void	AssumeRepresentation (Representation r)

virtual Representation	KnownOptimalRepresentation ()

HType	type () const

void	set_type (HType new_type)

bool	IsHeapObject ()

virtual int	RedefinedOperandIndex ()

bool	IsInformativeDefinition ()

HValue *	RedefinedOperand ()

bool	CanReplaceWithDummyUses ()

virtual int	argument_delta () const

virtual bool	IsPurelyInformativeDefinition ()

HValue *	ActualValue ()

bool	IsInteger32Constant ()

int32_t	GetInteger32Constant ()

bool	EqualsInteger32Constant (int32_t value)

bool	IsDefinedAfter (HBasicBlock *other) const

virtual int	OperandCount ()=0

virtual HValue *	OperandAt (int index) const =0

void	SetOperandAt (int index, HValue *value)

void	DeleteAndReplaceWith (HValue *other)

void	ReplaceAllUsesWith (HValue *other)

bool	HasNoUses () const

bool	HasMultipleUses () const

int	UseCount () const

void	Kill ()

int	flags () const

void	SetFlag (Flag f)

void	ClearFlag (Flag f)

bool	CheckFlag (Flag f) const

void	CopyFlag (Flag f, HValue *other)

bool	CheckUsesForFlag (Flag f) const

bool	CheckUsesForFlag (Flag f, HValue **value) const

bool	HasAtLeastOneUseWithFlagAndNoneWithout (Flag f) const

GVNFlagSet	ChangesFlags () const

GVNFlagSet	DependsOnFlags () const

void	SetChangesFlag (GVNFlag f)

void	SetDependsOnFlag (GVNFlag f)

void	ClearChangesFlag (GVNFlag f)

void	ClearDependsOnFlag (GVNFlag f)

bool	CheckChangesFlag (GVNFlag f) const

bool	CheckDependsOnFlag (GVNFlag f) const

void	SetAllSideEffects ()

void	ClearAllSideEffects ()

bool	HasSideEffects () const

bool	HasObservableSideEffects () const

GVNFlagSet	SideEffectFlags () const

GVNFlagSet	ObservableChangesFlags () const

Range *	range () const

bool	HasRange () const

void	AddNewRange (Range r, Zone zone)

void	RemoveLastAddedRange ()

void	ComputeInitialRange (Zone *zone)

virtual bool	HasEscapingOperandAt (int index)

virtual bool	HasOutOfBoundsAccess (int size)

virtual Representation	observed_input_representation (int index)

virtual Representation	RequiredInputRepresentation (int index)=0

virtual void	InferRepresentation (HInferRepresentationPhase *h_infer)

virtual HValue *	Canonicalize ()

bool	Equals (HValue *other)

virtual intptr_t	Hashcode ()

virtual void	FinalizeUniqueness ()

virtual void	PrintTo (StringStream *stream)=0

void	PrintNameTo (StringStream *stream)

void	PrintTypeTo (StringStream *stream)

void	PrintRangeTo (StringStream *stream)

void	PrintChangesTo (StringStream *stream)

const char *	Mnemonic () const

bool	HasMonomorphicJSObjectType ()

virtual Handle< Map >	GetMonomorphicJSObjectMap ()

bool	UpdateInferredType ()

virtual HType	CalculateInferredType ()

virtual bool	HandleSideEffectDominator (GVNFlag side_effect, HValue *dominator)

bool	CannotBeEliminated () const

virtual bool	TryDecompose (DecompositionResult *decomposition)

bool	ToStringCanBeObserved () const

bool	ToNumberCanBeObserved () const

MinusZeroMode	GetMinusZeroMode ()

Public Member Functions inherited from ZoneObject
	INLINE (void operator new(size_t size, Zone zone))

void	operator delete (void *, size_t)

void	operator delete (void pointer, Zone zone)

Static Public Member Functions
static HValue *	cast (HValue *value)

Static Public Attributes
static const int	kNoNumber = -1

static const int	kNoRedefinedOperand = -1

Protected Member Functions
virtual bool	DataEquals (HValue *other)

virtual Representation	RepresentationFromInputs ()

Representation	RepresentationFromUses ()

Representation	RepresentationFromUseRequirements ()

bool	HasNonSmiUse ()

virtual void	UpdateRepresentation (Representation new_rep, HInferRepresentationPhase h_infer, const char reason)

void	AddDependantsToWorklist (HInferRepresentationPhase *h_infer)

virtual void	RepresentationChanged (Representation to)

virtual Range *	InferRange (Zone *zone)

virtual void	DeleteFromGraph ()=0

virtual void	InternalSetOperandAt (int index, HValue *value)=0

void	clear_block ()

void	set_representation (Representation r)

HUseListNode *	RemoveUse (HValue *value, int index)

void	RegisterUse (int index, HValue *new_value)

Static Protected Member Functions
static GVNFlagSet	AllFlagSet ()

static GVNFlagSet	AllSideEffectsFlagSet ()

static GVNFlagSet	AllObservableSideEffectsFlagSet ()

Protected Attributes
HBasicBlock *	block_

int	id_

Representation	representation_

HType	type_

HUseListNode *	use_list_

Range *	range_

int	flags_

GVNFlagSet	changes_flags_

GVNFlagSet	depends_on_flags_

Detailed Description

Definition at line 606 of file hydrogen-instructions.h.

Member Enumeration Documentation

enum Flag

Enumerator
kFlexibleRepresentation
kCannotBeTagged
kUseGVN
kTrackSideEffectDominators
kCanOverflow
kBailoutOnMinusZero
kCanBeDivByZero
kLeftCanBeMinInt
kLeftCanBeNegative
kLeftCanBePositive
kAllowUndefinedAsNaN
kIsArguments
kTruncatingToInt32
kAllUsesTruncatingToInt32
kTruncatingToSmi
kAllUsesTruncatingToSmi
kIsDead
kUint32
kHasNoObservableSideEffects
kIsLive
kEndsLiveRange
kLastFlag

Definition at line 610 of file hydrogen-instructions.h.

enum Opcode

Enumerator
kPhi

Definition at line 659 of file hydrogen-instructions.h.

Constructor & Destructor Documentation

HValue ( HType type = HType::Tagged() )

inline

Definition at line 681 of file hydrogen-instructions.h.

virtual ~HValue ( )

inlinevirtual

Definition at line 688 of file hydrogen-instructions.h.

Member Function Documentation

HValue* ActualValue ( )

inline

Definition at line 774 of file hydrogen-instructions.h.

References HValue::kNoRedefinedOperand, HValue::OperandAt(), and HValue::RedefinedOperandIndex().

Referenced by HLoadEliminationTable::Process().

void AddDependantsToWorklist ( HInferRepresentationPhase * h_infer )

protected

Definition at line 137 of file hydrogen-instructions.cc.

References HInferRepresentationPhase::AddToWorklist(), HValue::OperandAt(), HValue::OperandCount(), and HValue::uses().

Referenced by HValue::UpdateRepresentation().

void AddNewRange	(	Range *	r,
		Zone *	zone
	)

Definition at line 663 of file hydrogen-instructions.cc.

References ASSERT, HValue::ComputeInitialRange(), HValue::HasRange(), and HValue::range_.

static GVNFlagSet AllFlagSet ( )

inlinestaticprotected

Definition at line 988 of file hydrogen-instructions.h.

References ADD_FLAG, GVN_TRACKED_FLAG_LIST, and GVN_UNTRACKED_FLAG_LIST.

Referenced by HValue::AllObservableSideEffectsFlagSet(), and HValue::AllSideEffectsFlagSet().

static GVNFlagSet AllObservableSideEffectsFlagSet ( )

inlinestaticprotected

Definition at line 1006 of file hydrogen-instructions.h.

References HValue::AllFlagSet(), and EnumSet< E, T >::Remove().

Referenced by HValue::HasObservableSideEffects(), and HValue::ObservableChangesFlags().

static GVNFlagSet AllSideEffectsFlagSet ( )

inlinestaticprotected

Definition at line 998 of file hydrogen-instructions.h.

References HValue::AllFlagSet(), and EnumSet< E, T >::Remove().

Referenced by HValue::ClearAllSideEffects(), HValue::HasSideEffects(), HValue::PrintChangesTo(), HValue::SetAllSideEffects(), and HValue::SideEffectFlags().

virtual int argument_delta ( ) const

inlinevirtual

Reimplemented in V8_FINAL< kOperandKind, kNumCachedOperands >, V8_FINAL< kOperandKind, kNumCachedOperands >, HCall< V >, HCall< 1 >, HCall< 2 >, V8_FINAL< kOperandKind, kNumCachedOperands >, and V8_FINAL< kOperandKind, kNumCachedOperands >.

Definition at line 765 of file hydrogen-instructions.h.

void AssumeRepresentation ( Representation r )

virtual

Reimplemented in HBinaryOperation.

Definition at line 66 of file hydrogen-instructions.cc.

References HValue::ChangeRepresentation(), HValue::CheckFlag(), HValue::ClearFlag(), and HValue::kFlexibleRepresentation.

Referenced by HBinaryOperation::AssumeRepresentation().

HBasicBlock* block ( ) const

inline

Definition at line 697 of file hydrogen-instructions.h.

References HValue::block_.

Referenced by HValue::CanReplaceWithDummyUses(), HInstruction::InsertAfter(), HInstruction::InsertBefore(), HValue::IsDefinedAfter(), HInstruction::IsLinked(), HValue::isolate(), BASE_EMBEDDED< Visitor >::ProcessRelatedChecks(), HValue::RegisterUse(), HValue::RemoveUse(), HValue::ReplaceAllUsesWith(), HValue::SetBlock(), HTemplateControlInstruction< 0, 0 >::SetSuccessorAt(), and HInstruction::Unlink().

HType CalculateInferredType ( )

virtual

Reimplemented in V8_FINAL< kOperandKind, kNumCachedOperands >, V8_FINAL< kOperandKind, kNumCachedOperands >, V8_FINAL< kOperandKind, kNumCachedOperands >, V8_FINAL< kOperandKind, kNumCachedOperands >, V8_FINAL< kOperandKind, kNumCachedOperands >, V8_FINAL< kOperandKind, kNumCachedOperands >, HCall< V >, HCall< 1 >, HCall< 2 >, and V8_FINAL< kOperandKind, kNumCachedOperands >.

Definition at line 3652 of file hydrogen-instructions.cc.

References HValue::type_.

Referenced by HValue::UpdateInferredType().

bool CannotBeEliminated ( ) const

inline

Definition at line 921 of file hydrogen-instructions.h.

References HValue::HasObservableSideEffects().

virtual HValue* Canonicalize ( )

inlinevirtual

Definition at line 879 of file hydrogen-instructions.h.

Referenced by HCanonicalizePhase::Run().

bool CanReplaceWithDummyUses ( )

Definition at line 507 of file hydrogen-instructions.cc.

References HValue::block().

static HValue* cast ( HValue * value )

inlinestatic

Definition at line 657 of file hydrogen-instructions.h.

Referenced by HGraphBuilder::BuildBinaryOperation(), HCheckTable::Process(), HRangeAnalysisPhase::Run(), and HOptimizedGraphBuilder::VisitArithmeticExpression().

void ChangeRepresentation ( Representation r )

inline

Definition at line 711 of file hydrogen-instructions.h.

References ASSERT, HValue::CheckFlag(), HValue::ClearFlag(), Representation::IsTagged(), HValue::kCannotBeTagged, HValue::kFlexibleRepresentation, HValue::representation_, and HValue::RepresentationChanged().

Referenced by HValue::AssumeRepresentation(), HGraphBuilder::BuildUncheckedDictionaryElementLoad(), HCompareNumericAndBranch::InferRepresentation(), HInferRepresentationPhase::Run(), and HValue::UpdateRepresentation().

GVNFlagSet ChangesFlags ( ) const

inline

Definition at line 821 of file hydrogen-instructions.h.

References HValue::changes_flags_.

Referenced by HValue::ObservableChangesFlags(), HValue::PrintChangesTo(), HLoadEliminationEffects::Process(), V8_FINAL< kOperandKind, kNumCachedOperands >::ReuseSideEffectsFromStore(), and HValue::SideEffectFlags().

bool CheckChangesFlag ( GVNFlag f ) const

inline

Definition at line 827 of file hydrogen-instructions.h.

References HValue::changes_flags_, and EnumSet< E, T >::Contains().

Referenced by HCheckTable::Process(), HLoadEliminationTable::Process(), and HCheckMapsEffects::Process().

bool CheckDependsOnFlag ( GVNFlag f ) const

inline

Definition at line 830 of file hydrogen-instructions.h.

References EnumSet< E, T >::Contains(), and HValue::depends_on_flags_.

bool CheckUsesForFlag ( Flag f ) const

Definition at line 386 of file hydrogen-instructions.cc.

References HValue::uses().

bool CheckUsesForFlag	(	Flag	f,
		HValue **	value
	)		const

Definition at line 395 of file hydrogen-instructions.cc.

References HValue::uses().

void clear_block ( )

inlineprotected

Definition at line 978 of file hydrogen-instructions.h.

References ASSERT, HValue::block_, and v8::internal::NULL.

Referenced by HInstruction::Unlink().

void ClearAllSideEffects ( )

inline

Definition at line 834 of file hydrogen-instructions.h.

References HValue::AllSideEffectsFlagSet(), HValue::changes_flags_, and EnumSet< E, T >::Remove().

void ClearChangesFlag ( GVNFlag f )

inline

Definition at line 825 of file hydrogen-instructions.h.

References HValue::changes_flags_, and EnumSet< E, T >::Remove().

void ClearDependsOnFlag ( GVNFlag f )

inline

Definition at line 826 of file hydrogen-instructions.h.

References HValue::depends_on_flags_, and EnumSet< E, T >::Remove().

Referenced by HGraphBuilder::BuildUncheckedMonomorphicElementAccess().

void ClearFlag ( Flag f )

inline

Definition at line 807 of file hydrogen-instructions.h.

References HValue::flags_.

Referenced by HGraphBuilder::AddIncrementCounter(), HValue::AssumeRepresentation(), HGraphBuilder::BuildAllocateElements(), HGraphBuilder::BuildCheckForCapacityGrow(), HGraphBuilder::BuildCreateAllocationMemento(), CodeStubGraphBuilderBase::BuildGraph(), HGraphBuilder::BuildNewElementsCapacity(), HGraphBuilder::BuildObjectSizeAlignment(), HGraphBuilder::BuildUncheckedStringAdd(), HValue::ChangeRepresentation(), and HRepresentationChangesPhase::Run().

void ComputeInitialRange ( Zone * zone )

Definition at line 679 of file hydrogen-instructions.cc.

References ASSERT, HValue::HasRange(), HValue::InferRange(), and HValue::range_.

Referenced by HValue::AddNewRange().

void CopyFlag	(	Flag	f,
		HValue *	other
	)

inline

Definition at line 809 of file hydrogen-instructions.h.

References HValue::CheckFlag(), and HValue::SetFlag().

Referenced by HGraphBuilder::BuildBinaryOperation().

virtual bool DataEquals ( HValue * other )

inlineprotectedvirtual

Definition at line 957 of file hydrogen-instructions.h.

References UNREACHABLE.

Referenced by HValue::Equals().

void DeleteAndReplaceWith ( HValue * other )

Definition at line 539 of file hydrogen-instructions.cc.

References HValue::DeleteFromGraph(), HValue::Kill(), v8::internal::NULL, and HValue::ReplaceAllUsesWith().

Referenced by HLoadEliminationTable::Process(), and HCanonicalizePhase::Run().

virtual void DeleteFromGraph ( )

protectedpure virtual

Implemented in V8_FINAL< kOperandKind, kNumCachedOperands >, and HInstruction.

Referenced by HValue::DeleteAndReplaceWith().

GVNFlagSet DependsOnFlags ( ) const

inline

Definition at line 822 of file hydrogen-instructions.h.

References HValue::depends_on_flags_.

virtual bool EmitAtUses ( )

inlinevirtual

Reimplemented in V8_FINAL< kOperandKind, kNumCachedOperands >.

Definition at line 708 of file hydrogen-instructions.h.

bool Equals ( HValue * other )

Definition at line 471 of file hydrogen-instructions.cc.

References ASSERT, HValue::DataEquals(), Representation::Equals(), HValue::flags(), HValue::Hashcode(), HValue::id(), HValue::opcode(), HValue::OperandAt(), HValue::OperandCount(), HValue::representation(), and HValue::type_.

Referenced by HValue::PrintTypeTo(), and HAliasAnalyzer::Query().

bool EqualsInteger32Constant ( int32_t value )

Definition at line 528 of file hydrogen-instructions.cc.

References HValue::GetInteger32Constant(), and HValue::IsInteger32Constant().

Referenced by HGraphBuilder::BuildBinaryOperation().

virtual void FinalizeUniqueness ( )

inlinevirtual

Reimplemented in V8_FINAL< kOperandKind, kNumCachedOperands >, V8_FINAL< kOperandKind, kNumCachedOperands >, V8_FINAL< kOperandKind, kNumCachedOperands >, V8_FINAL< kOperandKind, kNumCachedOperands >, V8_FINAL< kOperandKind, kNumCachedOperands >, and V8_FINAL< kOperandKind, kNumCachedOperands >.

Definition at line 885 of file hydrogen-instructions.h.

int flags ( ) const

inline

Definition at line 805 of file hydrogen-instructions.h.

References HValue::flags_.

Referenced by HValue::Equals().

int32_t GetInteger32Constant ( )

Definition at line 523 of file hydrogen-instructions.cc.

Referenced by HGraphBuilder::BuildFillElementsWithHole(), HValue::EqualsInteger32Constant(), BASE_EMBEDDED< Visitor >::ProcessRelatedChecks(), HBinaryOperation::RightIsPowerOf2(), and V8_FINAL< kOperandKind, kNumCachedOperands >::UpdateRepresentation().

MinusZeroMode GetMinusZeroMode ( )

inline

Definition at line 949 of file hydrogen-instructions.h.

References HValue::CheckFlag(), v8::internal::FAIL_ON_MINUS_ZERO, HValue::kBailoutOnMinusZero, and v8::internal::TREAT_MINUS_ZERO_AS_ZERO.

virtual Handle<Map> GetMonomorphicJSObjectMap ( )

inlinevirtual

Reimplemented in V8_FINAL< kOperandKind, kNumCachedOperands >.

Definition at line 902 of file hydrogen-instructions.h.

Referenced by HValue::HasMonomorphicJSObjectType().

virtual bool HandleSideEffectDominator	(	GVNFlag	side_effect,
		HValue *	dominator
	)

inlinevirtual

Reimplemented in V8_FINAL< kOperandKind, kNumCachedOperands >, V8_FINAL< kOperandKind, kNumCachedOperands >, V8_FINAL< kOperandKind, kNumCachedOperands >, and V8_FINAL< kOperandKind, kNumCachedOperands >.

Definition at line 914 of file hydrogen-instructions.h.

References UNREACHABLE.

bool HasAtLeastOneUseWithFlagAndNoneWithout ( Flag f ) const

Definition at line 407 of file hydrogen-instructions.cc.

References HValue::uses().

Referenced by HCanonicalizePhase::Run().

virtual bool HasEscapingOperandAt ( int index )

inlinevirtual

Reimplemented in V8_FINAL< kOperandKind, kNumCachedOperands >, V8_FINAL< kOperandKind, kNumCachedOperands >, HDematerializedObject, V8_FINAL< kOperandKind, kNumCachedOperands >, V8_FINAL< kOperandKind, kNumCachedOperands >, V8_FINAL< kOperandKind, kNumCachedOperands >, and V8_FINAL< kOperandKind, kNumCachedOperands >.

Definition at line 865 of file hydrogen-instructions.h.

intptr_t Hashcode ( )

virtual

Reimplemented in V8_FINAL< kOperandKind, kNumCachedOperands >, and V8_FINAL< kOperandKind, kNumCachedOperands >.

Definition at line 486 of file hydrogen-instructions.cc.

References HValue::id(), HValue::opcode(), HValue::OperandAt(), and HValue::OperandCount().

Referenced by HValue::Equals(), and BoundsCheckKey::Hash().

bool HasMonomorphicJSObjectType ( )

Definition at line 629 of file hydrogen-instructions.cc.

References HValue::GetMonomorphicJSObjectMap().

bool HasMultipleUses ( ) const

inline

Definition at line 797 of file hydrogen-instructions.h.

References v8::internal::NULL, HUseListNode::tail(), and HValue::use_list_.

bool HasNonSmiUse ( )

protected

Definition at line 4426 of file hydrogen-instructions.cc.

References Representation::IsNone(), Representation::IsSmi(), Representation::IsTagged(), and HValue::uses().

Referenced by HValue::InferRepresentation(), and HBinaryOperation::InferRepresentation().

bool HasNoUses ( ) const

inline

Definition at line 796 of file hydrogen-instructions.h.

References v8::internal::NULL, and HValue::use_list_.

Referenced by HValue::RepresentationFromUses().

bool HasObservableSideEffects ( ) const

inline

Definition at line 840 of file hydrogen-instructions.h.

References HValue::AllObservableSideEffectsFlagSet(), HValue::changes_flags_, HValue::CheckFlag(), EnumSet< E, T >::ContainsAnyOf(), and HValue::kHasNoObservableSideEffects.

Referenced by HValue::CannotBeEliminated(), HInstruction::InsertAfter(), and V8_FINAL< kOperandKind, kNumCachedOperands >::ReuseSideEffectsFromStore().

virtual bool HasOutOfBoundsAccess ( int size )

inlinevirtual

Reimplemented in V8_FINAL< kOperandKind, kNumCachedOperands >, and V8_FINAL< kOperandKind, kNumCachedOperands >.

Definition at line 866 of file hydrogen-instructions.h.

bool HasRange ( ) const

inline

Definition at line 859 of file hydrogen-instructions.h.

References v8::internal::NULL, and HValue::range_.

Referenced by HValue::AddNewRange(), HValue::ComputeInitialRange(), and HValue::RemoveLastAddedRange().

bool HasSideEffects ( ) const

inline

Definition at line 837 of file hydrogen-instructions.h.

References HValue::AllSideEffectsFlagSet(), HValue::changes_flags_, and EnumSet< E, T >::ContainsAnyOf().

int id ( ) const

inline

Definition at line 703 of file hydrogen-instructions.h.

References HValue::id_.

Referenced by HInferRepresentationPhase::AddToWorklist(), HValue::Equals(), HValue::Hashcode(), V8_FINAL< kOperandKind, kNumCachedOperands >::IsDehoistedKey(), HValue::PrintNameTo(), HLoadEliminationTable::Process(), HValue::RepresentationFromUses(), HRepresentationChangesPhase::Run(), HInferRepresentationPhase::Run(), HValue::set_id(), HOptimizedGraphBuilder::VisitDelete(), and HOptimizedGraphBuilder::VisitTypeof().

Range * InferRange ( Zone * zone )

protectedvirtual

Definition at line 1753 of file hydrogen-instructions.cc.

References HValue::CheckFlag(), HValue::kAllUsesTruncatingToInt32, Smi::kMaxValue, Smi::kMinValue, HValue::representation(), and HValue::type().

Referenced by HValue::ComputeInitialRange().

void InferRepresentation ( HInferRepresentationPhase * h_infer )

virtual

Reimplemented in V8_FINAL< kOperandKind, kNumCachedOperands >, V8_FINAL< kOperandKind, kNumCachedOperands >, V8_FINAL< kOperandKind, kNumCachedOperands >, HCompareNumericAndBranch, V8_FINAL< kOperandKind, kNumCachedOperands >, HBinaryOperation, and V8_FINAL< kOperandKind, kNumCachedOperands >.

Definition at line 76 of file hydrogen-instructions.cc.

References ASSERT, HValue::CheckFlag(), HValue::HasNonSmiUse(), Representation::Integer32(), HValue::kFlexibleRepresentation, HValue::representation(), HValue::RepresentationFromInputs(), HValue::RepresentationFromUses(), and HValue::UpdateRepresentation().

Referenced by HInferRepresentationPhase::Run().

virtual void InternalSetOperandAt	(	int	index,
		HValue *	value
	)

protectedpure virtual

Referenced by HValue::ReplaceAllUsesWith(), and HValue::SetOperandAt().

bool IsDefinedAfter ( HBasicBlock * other ) const

Definition at line 372 of file hydrogen-instructions.cc.

References HValue::block().

bool IsHeapObject ( )

inline

Definition at line 741 of file hydrogen-instructions.h.

References Representation::IsHeapObject(), HValue::representation_, and HValue::type_.

bool IsInformativeDefinition ( )

inline

Definition at line 755 of file hydrogen-instructions.h.

References HValue::kNoRedefinedOperand, and HValue::RedefinedOperandIndex().

bool IsInteger32Constant ( )

Definition at line 518 of file hydrogen-instructions.cc.

Referenced by HGraphBuilder::BuildFillElementsWithHole(), HValue::EqualsInteger32Constant(), BASE_EMBEDDED< Visitor >::ProcessRelatedChecks(), and V8_FINAL< kOperandKind, kNumCachedOperands >::UpdateRepresentation().

Isolate * isolate ( ) const

Definition at line 60 of file hydrogen-instructions.cc.

References ASSERT, HValue::block(), and v8::internal::NULL.

bool IsPhi ( ) const

inline

Definition at line 673 of file hydrogen-instructions.h.

References HValue::kPhi, and HValue::opcode().

Referenced by V8_FINAL< kOperandKind, kNumCachedOperands >::cast(), HValue::RepresentationFromUses(), HRepresentationChangesPhase::Run(), and HInferRepresentationPhase::Run().

virtual bool IsPurelyInformativeDefinition ( )

inlinevirtual

Reimplemented in V8_FINAL< kOperandKind, kNumCachedOperands >, and V8_FINAL< kOperandKind, kNumCachedOperands >.

Definition at line 770 of file hydrogen-instructions.h.

void Kill ( )

Definition at line 560 of file hydrogen-instructions.cc.

References HValue::CheckFlag(), HValue::kIsDead, v8::internal::NULL, HValue::OperandAt(), HValue::OperandCount(), HValue::SetFlag(), HUseListNode::tail(), HValue::use_list_, and HUseListNode::value().

Referenced by HValue::DeleteAndReplaceWith().

virtual Representation KnownOptimalRepresentation ( )

inlinevirtual

Reimplemented in V8_FINAL< kOperandKind, kNumCachedOperands >, V8_FINAL< kOperandKind, kNumCachedOperands >, and V8_FINAL< kOperandKind, kNumCachedOperands >.

Definition at line 723 of file hydrogen-instructions.h.

References Representation::Double(), Representation::IsTagged(), Representation::None(), HValue::representation(), Representation::Smi(), and HValue::type().

const char * Mnemonic ( ) const

Definition at line 496 of file hydrogen-instructions.cc.

References HYDROGEN_CONCRETE_INSTRUCTION_LIST, HValue::kPhi, MAKE_CASE, and HValue::opcode().

Referenced by HValue::RepresentationFromUses(), HRepresentationChangesPhase::Run(), and HValue::UpdateRepresentation().

GVNFlagSet ObservableChangesFlags ( ) const

inline

Definition at line 851 of file hydrogen-instructions.h.

References HValue::AllObservableSideEffectsFlagSet(), HValue::ChangesFlags(), and EnumSet< E, T >::Intersect().

virtual Representation observed_input_representation ( int index )

inlinevirtual

Reimplemented in V8_FINAL< kOperandKind, kNumCachedOperands >, V8_FINAL< kOperandKind, kNumCachedOperands >, V8_FINAL< kOperandKind, kNumCachedOperands >, V8_FINAL< kOperandKind, kNumCachedOperands >, HCompareObjectEqAndBranch, HCompareNumericAndBranch, HBitwiseBinaryOperation, HBinaryOperation, and V8_FINAL< kOperandKind, kNumCachedOperands >.

Definition at line 869 of file hydrogen-instructions.h.

References Representation::None().

Referenced by HValue::RepresentationFromUses().

virtual Opcode opcode ( ) const

pure virtual

virtual HSourcePosition operand_position ( int index ) const

inlinevirtual

Reimplemented in HInstruction.

Definition at line 693 of file hydrogen-instructions.h.

References HValue::position().

virtual HValue* OperandAt ( int index ) const

pure virtual

Referenced by HValue::ActualValue(), HValue::AddDependantsToWorklist(), HInstruction::CanDeoptimize(), HValue::Equals(), HValue::Hashcode(), HValue::Kill(), HInstruction::PrintDataTo(), HValue::RedefinedOperand(), HValue::RegisterUse(), and HRepresentationChangesPhase::Run().

virtual int OperandCount ( )

pure virtual

Referenced by HValue::AddDependantsToWorklist(), HInstruction::CanDeoptimize(), HValue::Equals(), HValue::Hashcode(), HValue::Kill(), HInstruction::PrintDataTo(), and HInstruction::set_operand_position().

virtual HSourcePosition position ( ) const

inlinevirtual

Reimplemented in V8_FINAL< kOperandKind, kNumCachedOperands >, and HInstruction.

Definition at line 690 of file hydrogen-instructions.h.

References HSourcePosition::Unknown().

Referenced by HValue::operand_position().

void PrintChangesTo ( StringStream * stream )

Definition at line 602 of file hydrogen-instructions.cc.

References StringStream::Add(), HValue::AllSideEffectsFlagSet(), HValue::ChangesFlags(), GVN_TRACKED_FLAG_LIST, GVN_UNTRACKED_FLAG_LIST, EnumSet< E, T >::IsEmpty(), and PRINT_DO.

Referenced by HInstruction::PrintTo().

void PrintNameTo ( StringStream * stream )

Definition at line 624 of file hydrogen-instructions.cc.

References StringStream::Add(), HValue::id(), Representation::Mnemonic(), and HValue::representation_.

Referenced by HInstruction::PrintDataTo(), HUnaryControlInstruction::PrintDataTo(), HUnaryOperation::PrintDataTo(), HUnaryCall::PrintDataTo(), HBinaryCall::PrintDataTo(), HBinaryOperation::PrintDataTo(), HCompareNumericAndBranch::PrintDataTo(), and HCompareObjectEqAndBranch::PrintDataTo().

void PrintRangeTo ( StringStream * stream )

Definition at line 591 of file hydrogen-instructions.cc.

References StringStream::Add(), v8::internal::NULL, and HValue::range().

Referenced by HInstruction::PrintTo().

virtual void PrintTo ( StringStream * stream )

pure virtual

Implemented in V8_FINAL< kOperandKind, kNumCachedOperands >, HInstruction, V8_FINAL< kOperandKind, kNumCachedOperands >, V8_FINAL< kOperandKind, kNumCachedOperands >, and V8_FINAL< kOperandKind, kNumCachedOperands >.

void PrintTypeTo ( StringStream * stream )

Definition at line 585 of file hydrogen-instructions.cc.

References StringStream::Add(), HValue::Equals(), HValue::representation(), and HValue::type().

Referenced by HInstruction::PrintTo().

Range* range ( ) const

inline

Definition at line 857 of file hydrogen-instructions.h.

References HValue::range_.

Referenced by HValue::PrintRangeTo().

HValue* RedefinedOperand ( )

inline

Definition at line 758 of file hydrogen-instructions.h.

References HValue::kNoRedefinedOperand, v8::internal::NULL, HValue::OperandAt(), and HValue::RedefinedOperandIndex().

Referenced by HValue::TryDecompose().

virtual int RedefinedOperandIndex ( )

inlinevirtual

Reimplemented in V8_FINAL< kOperandKind, kNumCachedOperands >, V8_FINAL< kOperandKind, kNumCachedOperands >, V8_FINAL< kOperandKind, kNumCachedOperands >, V8_FINAL< kOperandKind, kNumCachedOperands >, V8_FINAL< kOperandKind, kNumCachedOperands >, V8_FINAL< kOperandKind, kNumCachedOperands >, V8_FINAL< kOperandKind, kNumCachedOperands >, V8_FINAL< kOperandKind, kNumCachedOperands >, and V8_FINAL< kOperandKind, kNumCachedOperands >.

Definition at line 754 of file hydrogen-instructions.h.

References HValue::kNoRedefinedOperand.

Referenced by HValue::ActualValue(), HValue::IsInformativeDefinition(), and HValue::RedefinedOperand().

void RegisterUse	(	int	index,
		HValue *	new_value
	)

protected

Definition at line 642 of file hydrogen-instructions.cc.

References HValue::block(), v8::internal::NULL, HValue::OperandAt(), HValue::RemoveUse(), HUseListNode::set_tail(), and HValue::use_list_.

Referenced by HValue::SetOperandAt().

void RemoveLastAddedRange ( )

Definition at line 672 of file hydrogen-instructions.cc.

References ASSERT, HValue::HasRange(), v8::internal::NULL, and HValue::range_.

HUseListNode * RemoveUse	(	HValue *	value,
		int	index
	)

protected

Definition at line 440 of file hydrogen-instructions.cc.

References HValue::block(), HUseListNode::index(), v8::internal::NULL, HUseListNode::set_tail(), HUseListNode::tail(), HValue::use_list_, and HUseListNode::value().

Referenced by HValue::RegisterUse().

void ReplaceAllUsesWith ( HValue * other )

Definition at line 547 of file hydrogen-instructions.cc.

References ASSERT, HValue::block(), HUseListNode::index(), HValue::InternalSetOperandAt(), v8::internal::NULL, HUseListNode::set_tail(), HUseListNode::tail(), HValue::use_list_, and HUseListNode::value().

Referenced by HValue::DeleteAndReplaceWith().

Representation representation ( ) const

inline

Definition at line 710 of file hydrogen-instructions.h.

References HValue::representation_.

Referenced by HInferRepresentationPhase::AddToWorklist(), HValue::Equals(), V8_FINAL< kOperandKind, kNumCachedOperands >::from(), V8_FINAL< kOperandKind, kNumCachedOperands >::HChange(), HValue::InferRange(), HValue::InferRepresentation(), HBinaryOperation::InferRepresentation(), HCompareNumericAndBranch::InferRepresentation(), HValue::KnownOptimalRepresentation(), HValue::PrintTypeTo(), HLoadEliminationTable::Process(), BASE_EMBEDDED< Visitor >::ProcessRelatedChecks(), HValue::RepresentationFromInputs(), HBinaryOperation::RepresentationFromInputs(), V8_FINAL< kOperandKind, kNumCachedOperands >::RepresentationFromInputs(), HBinaryOperation::RepresentationFromOutput(), HCanonicalizePhase::Run(), HRepresentationChangesPhase::Run(), HInferRepresentationPhase::Run(), HUint32AnalysisPhase::Run(), HValue::ToNumberCanBeObserved(), HValue::ToStringCanBeObserved(), and HValue::UpdateRepresentation().

virtual void RepresentationChanged ( Representation to )

inlineprotectedvirtual

Reimplemented in V8_FINAL< kOperandKind, kNumCachedOperands >, HArithmeticBinaryOperation, and HBitwiseBinaryOperation.

Definition at line 973 of file hydrogen-instructions.h.

Referenced by HValue::ChangeRepresentation().

virtual Representation RepresentationFromInputs ( )

inlineprotectedvirtual

Reimplemented in V8_FINAL< kOperandKind, kNumCachedOperands >, V8_FINAL< kOperandKind, kNumCachedOperands >, HBinaryOperation, V8_FINAL< kOperandKind, kNumCachedOperands >, and V8_FINAL< kOperandKind, kNumCachedOperands >.

Definition at line 962 of file hydrogen-instructions.h.

References HValue::representation().

Referenced by HValue::InferRepresentation().

Representation RepresentationFromUseRequirements ( )

protected

Definition at line 4402 of file hydrogen-instructions.cc.

References Representation::Equals(), Representation::generalize(), Representation::Integer32(), Representation::IsInteger32(), Representation::IsNone(), Representation::None(), and HValue::uses().

Representation RepresentationFromUses ( )

protected

virtual Representation RequiredInputRepresentation ( int index )

pure virtual

void set_id ( int id )

inline

Definition at line 704 of file hydrogen-instructions.h.

References HValue::id(), and HValue::id_.

void set_representation ( Representation r )

inlineprotected

Definition at line 983 of file hydrogen-instructions.h.

References ASSERT, Representation::IsNone(), and HValue::representation_.

void set_type ( HType new_type )

inline

Definition at line 736 of file hydrogen-instructions.h.

References ASSERT, and HValue::type_.

Referenced by HGraphBuilder::BuildUncheckedMonomorphicElementAccess().

void SetAllSideEffects ( )

inline

Definition at line 833 of file hydrogen-instructions.h.

References EnumSet< E, T >::Add(), HValue::AllSideEffectsFlagSet(), and HValue::changes_flags_.

void SetBlock ( HBasicBlock * block )

Definition at line 576 of file hydrogen-instructions.cc.

References ASSERT, HValue::block(), HValue::block_, HValue::id_, HValue::kNoNumber, and v8::internal::NULL.

Referenced by HInstruction::InsertAfter(), and HInstruction::InsertBefore().

void SetChangesFlag ( GVNFlag f )

inline

Definition at line 823 of file hydrogen-instructions.h.

References EnumSet< E, T >::Add(), and HValue::changes_flags_.

void SetDependsOnFlag ( GVNFlag f )

inline

Definition at line 824 of file hydrogen-instructions.h.

References EnumSet< E, T >::Add(), and HValue::depends_on_flags_.

Referenced by HInstruction::HInstruction().

void SetFlag ( Flag f )

inline

Definition at line 806 of file hydrogen-instructions.h.

References HValue::flags_.

Referenced by HGraphBuilder::AddInstruction(), HGraphBuilder::BuildBinaryOperation(), HGraphBuilder::BuildUncheckedStringAdd(), HValue::CopyFlag(), HCompareNumericAndBranch::InferRepresentation(), HValue::Kill(), HCanonicalizePhase::Run(), HUint32AnalysisPhase::Run(), and HComputeChangeUndefinedToNaN::Run().

void SetOperandAt	(	int	index,
		HValue *	value
	)

Definition at line 533 of file hydrogen-instructions.cc.

References HValue::InternalSetOperandAt(), and HValue::RegisterUse().

Referenced by HUnaryControlInstruction::HUnaryControlInstruction(), and HUnaryOperation::HUnaryOperation().

GVNFlagSet SideEffectFlags ( ) const

inline

Definition at line 845 of file hydrogen-instructions.h.

References HValue::AllSideEffectsFlagSet(), HValue::ChangesFlags(), and EnumSet< E, T >::Intersect().

STATIC_ASSERT ( )

bool ToNumberCanBeObserved ( ) const

inline

Definition at line 945 of file hydrogen-instructions.h.

References HValue::representation(), and HValue::type().

Referenced by HBitwiseBinaryOperation::RepresentationChanged(), HArithmeticBinaryOperation::RepresentationChanged(), and V8_FINAL< kOperandKind, kNumCachedOperands >::RepresentationChanged().

bool ToStringCanBeObserved ( ) const

inline

Definition at line 939 of file hydrogen-instructions.h.

References HValue::representation(), and HValue::type().

Referenced by V8_FINAL< kOperandKind, kNumCachedOperands >::RepresentationChanged().

virtual bool TryDecompose ( DecompositionResult * decomposition )

inlinevirtual

Reimplemented in V8_FINAL< kOperandKind, kNumCachedOperands >, V8_FINAL< kOperandKind, kNumCachedOperands >, V8_FINAL< kOperandKind, kNumCachedOperands >, and V8_FINAL< kOperandKind, kNumCachedOperands >.

Definition at line 929 of file hydrogen-instructions.h.

References v8::internal::NULL, HValue::RedefinedOperand(), and HValue::TryDecompose().

Referenced by HValue::TryDecompose(), and V8_FINAL< kOperandKind, kNumCachedOperands >::TryDecompose().

HType type ( ) const

inline

Definition at line 735 of file hydrogen-instructions.h.

References HValue::type_.

Referenced by HGraphBuilder::BuildCheckHeapObject(), HGraphBuilder::BuildCheckString(), HGraphBuilder::BuildUncheckedMonomorphicElementAccess(), HGraphBuilder::BuildWrapReceiver(), V8_FINAL< kOperandKind, kNumCachedOperands >::Canonicalize(), V8_FINAL< kOperandKind, kNumCachedOperands >::HChange(), HValue::InferRange(), HValue::KnownOptimalRepresentation(), HValue::PrintTypeTo(), HLoadEliminationTable::Process(), v8::internal::StoringValueNeedsWriteBarrier(), HValue::ToNumberCanBeObserved(), HValue::ToStringCanBeObserved(), and HValue::UpdateInferredType().

bool UpdateInferredType ( )

Definition at line 634 of file hydrogen-instructions.cc.

References HValue::CalculateInferredType(), HValue::type(), and HValue::type_.

void UpdateRepresentation	(	Representation	new_rep,
		HInferRepresentationPhase *	h_infer,
		const char *	reason
	)

protectedvirtual

int UseCount ( ) const

Definition at line 433 of file hydrogen-instructions.cc.

References HValue::uses().

Referenced by HBinaryOperation::AreOperandsBetterSwitched().

HUseIterator uses ( ) const

inline

Definition at line 706 of file hydrogen-instructions.h.

References HValue::use_list_.

Referenced by HValue::AddDependantsToWorklist(), HValue::CheckUsesForFlag(), HValue::HasAtLeastOneUseWithFlagAndNoneWithout(), HValue::HasNonSmiUse(), HValue::RepresentationFromUseRequirements(), HValue::RepresentationFromUses(), and HValue::UseCount().

Field Documentation

HBasicBlock* block_

protected

Definition at line 1021 of file hydrogen-instructions.h.

Referenced by HValue::block(), HValue::clear_block(), and HValue::SetBlock().

GVNFlagSet changes_flags_

protected

Definition at line 1032 of file hydrogen-instructions.h.

Referenced by HValue::ChangesFlags(), HValue::CheckChangesFlag(), HValue::ClearAllSideEffects(), HValue::ClearChangesFlag(), HValue::HasObservableSideEffects(), HValue::HasSideEffects(), HValue::SetAllSideEffects(), and HValue::SetChangesFlag().

GVNFlagSet depends_on_flags_

protected

Definition at line 1033 of file hydrogen-instructions.h.

Referenced by HValue::CheckDependsOnFlag(), HValue::ClearDependsOnFlag(), HValue::DependsOnFlags(), and HValue::SetDependsOnFlag().

int flags_

protected

Definition at line 1031 of file hydrogen-instructions.h.

Referenced by HValue::CheckFlag(), HValue::ClearFlag(), HValue::flags(), and HValue::SetFlag().

int id_

protected

Definition at line 1025 of file hydrogen-instructions.h.

Referenced by HValue::id(), HValue::set_id(), and HValue::SetBlock().

const int kNoNumber = -1

static

Definition at line 608 of file hydrogen-instructions.h.

Referenced by HValue::SetBlock().

const int kNoRedefinedOperand = -1

static

Definition at line 753 of file hydrogen-instructions.h.

Referenced by HValue::ActualValue(), HValue::IsInformativeDefinition(), HValue::RedefinedOperand(), and HValue::RedefinedOperandIndex().

Range* range_

protected

Definition at line 1030 of file hydrogen-instructions.h.

Referenced by HValue::AddNewRange(), HValue::ComputeInitialRange(), HValue::HasRange(), HValue::range(), and HValue::RemoveLastAddedRange().

Representation representation_

protected

Definition at line 1027 of file hydrogen-instructions.h.

Referenced by HValue::ChangeRepresentation(), HValue::IsHeapObject(), HValue::PrintNameTo(), HValue::representation(), and HValue::set_representation().

HType type_

protected

Definition at line 1028 of file hydrogen-instructions.h.

Referenced by HValue::CalculateInferredType(), HValue::Equals(), HValue::IsHeapObject(), HValue::set_type(), HValue::type(), and HValue::UpdateInferredType().

HUseListNode* use_list_

protected

Definition at line 1029 of file hydrogen-instructions.h.

Referenced by HValue::HasMultipleUses(), HValue::HasNoUses(), HValue::Kill(), HValue::RegisterUse(), HValue::RemoveUse(), HValue::ReplaceAllUsesWith(), and HValue::uses().

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

src/hydrogen-instructions.h
src/hydrogen-instructions.cc

Public Types

Public Member Functions

Static Public Member Functions

Static Public Attributes

Protected Member Functions

Static Protected Member Functions

Protected Attributes

Detailed Description

Member Enumeration Documentation

Constructor & Destructor Documentation

Member Function Documentation

Field Documentation