HGraph Class Reference

#include <hydrogen.h>

Inheritance diagram for HGraph:

Collaboration diagram for HGraph:

Public Member Functions
	HGraph (CompilationInfo *info, Zone *zone)
Isolate *	isolate ()
Zone *	zone () const
const ZoneList< HBasicBlock * > *	blocks () const
const ZoneList< HPhi * > *	phi_list () const
HBasicBlock *	entry_block () const
HEnvironment *	start_environment () const
void	InitializeInferredTypes ()
void	InsertTypeConversions ()
void	InsertRepresentationChanges ()
void	MarkDeoptimizeOnUndefined ()
void	ComputeMinusZeroChecks ()
bool	ProcessArgumentsObject ()
void	EliminateRedundantPhis ()
void	EliminateUnreachablePhis ()
void	Canonicalize ()
void	OrderBlocks ()
void	AssignDominators ()
void	ReplaceCheckedValues ()
void	EliminateRedundantBoundsChecks ()
void	DehoistSimpleArrayIndexComputations ()
void	PropagateDeoptimizingMark ()
bool	CheckArgumentsPhiUses ()
bool	CheckConstPhiUses ()
void	CollectPhis ()
Handle< Code >	Compile (CompilationInfo *info, Zone *zone)
void	set_undefined_constant (HConstant *constant)
HConstant *	GetConstantUndefined () const
HConstant *	GetConstant1 ()
HConstant *	GetConstantMinus1 ()
HConstant *	GetConstantTrue ()
HConstant *	GetConstantFalse ()
HConstant *	GetConstantHole ()
HBasicBlock *	CreateBasicBlock ()
HArgumentsObject *	GetArgumentsObject () const
void	SetArgumentsObject (HArgumentsObject *object)
int	GetMaximumValueID () const
int	GetNextBlockID ()
int	GetNextValueID (HValue *value)
HValue *	LookupValue (int id) const
bool	has_osr_loop_entry ()
HBasicBlock *	osr_loop_entry ()
void	set_osr_loop_entry (HBasicBlock *entry)
ZoneList< HUnknownOSRValue * > *	osr_values ()
void	set_osr_values (ZoneList< HUnknownOSRValue * > *values)
void	MarkRecursive ()
bool	is_recursive () const
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)

Detailed Description

Definition at line 245 of file hydrogen.h.

Constructor & Destructor Documentation

HGraph	(	CompilationInfo *	info,
		Zone *	zone
	)

Definition at line 677 of file hydrogen.cc.

References HGraph::CreateBasicBlock(), AstNode::kFunctionEntryId, v8::internal::NULL, HEnvironment::set_ast_id(), HBasicBlock::SetInitialEnvironment(), and HGraph::zone().

Member Function Documentation

void AssignDominators

(

)

Definition at line 818 of file hydrogen.cc.

References HBasicBlock::AssignCommonDominator(), HBasicBlock::AssignLoopSuccessorDominators(), HBasicBlock::IsLoopHeader(), and HBasicBlock::predecessors().

Referenced by HGraphBuilder::CreateGraph().

const ZoneList<HBasicBlock*>* blocks ( ) const

inline

Definition at line 252 of file hydrogen.h.

Referenced by HBasicBlock::AssignLoopSuccessorDominators(), HGraph::Canonicalize(), HGraph::DehoistSimpleArrayIndexComputations(), and LChunk::MarkEmptyBlocks().

void Canonicalize

(

)

Definition at line 742 of file hydrogen.cc.

References HGraph::blocks(), HValue::Canonicalize(), HValue::DeleteAndReplaceWith(), HInstruction::next(), and v8::internal::NULL.

Referenced by HGraphBuilder::CreateGraph().

bool CheckArgumentsPhiUses

(

)

Definition at line 928 of file hydrogen.cc.

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

bool CheckConstPhiUses

(

)

Definition at line 941 of file hydrogen.cc.

References HGraph::GetConstantHole(), HPhi::OperandAt(), and HPhi::OperandCount().

void CollectPhis

(

)

Definition at line 956 of file hydrogen.cc.

References HGraph::zone().

Referenced by HGraphBuilder::CreateGraph().

Handle< Code > Compile	(	CompilationInfo *	info,
		Zone *	zone
	)

Definition at line 694 of file hydrogen.cc.

References Code::ComputeFlags(), v8::internal::flags, HGraph::GetMaximumValueID(), LUnallocated::kMaxVirtualRegisters, CodeGenerator::MakeCodeEpilogue(), CodeGenerator::MakeCodePrologue(), LChunk::MarkEmptyBlocks(), Handle< T >::null(), v8::internal::NULL, Code::OPTIMIZED_FUNCTION, CodeGenerator::PrintCode(), and v8::internal::PrintF().

void ComputeMinusZeroChecks

(

)

Definition at line 2495 of file hydrogen.cc.

References ASSERT, HUnaryOperation::cast(), BitVector::Clear(), Representation::Equals(), HChange::from(), HGraph::GetMaximumValueID(), Representation::IsDouble(), BitVector::IsEmpty(), Representation::IsInteger32(), Representation::IsTagged(), v8::internal::NULL, HValue::representation(), HChange::to(), HUnaryOperation::value(), and HGraph::zone().

Referenced by HGraphBuilder::CreateGraph().

HBasicBlock * CreateBasicBlock

(

)

Definition at line 735 of file hydrogen.cc.

References HGraph::zone().

Referenced by HGraphBuilder::CreateJoin(), FunctionState::FunctionState(), HGraph::HGraph(), EffectContext::ReturnControl(), ValueContext::ReturnControl(), and TestContext::ReturnControl().

void DehoistSimpleArrayIndexComputations

(

)

Definition at line 3293 of file hydrogen.cc.

References HGraph::blocks(), HValue::cast(), and v8::internal::NULL.

Referenced by HGraphBuilder::CreateGraph().

void EliminateRedundantBoundsChecks

(

)

Definition at line 3238 of file hydrogen.cc.

References HGraph::entry_block(), and HGraph::zone().

Referenced by HGraphBuilder::CreateGraph().

void EliminateRedundantPhis

(

)

Definition at line 850 of file hydrogen.cc.

References List< T, P >::AddAll(), HValue::block(), HPhi::cast(), HPhi::GetRedundantReplacement(), HValue::IsPhi(), v8::internal::NULL, HBasicBlock::RemovePhi(), HValue::SetOperandAt(), HValue::uses(), and HGraph::zone().

Referenced by HGraphBuilder::CreateGraph().

void EliminateUnreachablePhis

(

)

Definition at line 884 of file hydrogen.cc.

References HValue::block(), HPhi::cast(), HPhi::HasRealUses(), HPhi::is_live(), HValue::IsPhi(), HPhi::IsReceiver(), HPhi::merged_index(), HPhi::OperandAt(), HPhi::OperandCount(), HGraph::phi_list(), HBasicBlock::RecordDeletedPhi(), HBasicBlock::RemovePhi(), HPhi::set_is_live(), and HGraph::zone().

Referenced by HGraphBuilder::CreateGraph().

HBasicBlock* entry_block ( ) const

inline

Definition at line 254 of file hydrogen.h.

Referenced by HGraphBuilder::CreateGraph(), HGraph::EliminateRedundantBoundsChecks(), and HGraph::PropagateDeoptimizingMark().

HArgumentsObject* GetArgumentsObject ( ) const

inline

Definition at line 296 of file hydrogen.h.

HConstant * GetConstant1

(

)

Definition at line 582 of file hydrogen.cc.

References Smi::FromInt().

HConstant * GetConstantFalse

(

)

Definition at line 597 of file hydrogen.cc.

References HGraph::isolate().

HConstant * GetConstantHole

(

)

Definition at line 602 of file hydrogen.cc.

References HGraph::isolate().

Referenced by HGraph::CheckConstPhiUses().

HConstant * GetConstantMinus1

(

)

Definition at line 587 of file hydrogen.cc.

References Smi::FromInt().

HConstant * GetConstantTrue

(

)

Definition at line 592 of file hydrogen.cc.

References HGraph::isolate().

HConstant* GetConstantUndefined ( ) const

inline

Definition at line 288 of file hydrogen.h.

Referenced by HGraphBuilder::CreateGraph().

int GetMaximumValueID ( ) const

inline

Definition at line 304 of file hydrogen.h.

Referenced by HGraph::Compile(), and HGraph::ComputeMinusZeroChecks().

int GetNextBlockID ( )

inline

Definition at line 305 of file hydrogen.h.

int GetNextValueID ( HValue *  value )

inline

Definition at line 306 of file hydrogen.h.

References HGraph::zone().

Referenced by HValue::SetBlock().

bool has_osr_loop_entry ( )

inline

Definition at line 319 of file hydrogen.h.

void InitializeInferredTypes

(

)

Definition at line 2280 of file hydrogen.cc.

Referenced by HGraphBuilder::CreateGraph().

void InsertRepresentationChanges

(

)

Definition at line 2417 of file hydrogen.cc.

References List< T, ZoneAllocationPolicy >::at(), HValue::CheckFlag(), HValue::CheckUsesForFlag(), HValue::ClearFlag(), Representation::IsInteger32(), HValue::kTruncatingToInt32, HInstruction::next(), v8::internal::NULL, HGraph::phi_list(), HValue::representation(), and HValue::SetFlag().

Referenced by HGraphBuilder::CreateGraph().

void InsertTypeConversions

(

)

bool is_recursive ( ) const

inline

Definition at line 343 of file hydrogen.h.

Isolate* isolate ( )

inline

Definition at line 249 of file hydrogen.h.

Referenced by HGraph::GetConstantFalse(), HGraph::GetConstantHole(), and HGraph::GetConstantTrue().

HValue* LookupValue ( int  id ) const

inline

Definition at line 310 of file hydrogen.h.

References v8::internal::NULL.

Referenced by LChunk::LookupLiteral(), and LChunk::LookupLiteralRepresentation().

void MarkDeoptimizeOnUndefined

(

)

Definition at line 2473 of file hydrogen.cc.

References Representation::IsDouble(), HValue::kDeoptimizeOnUndefined, HGraph::phi_list(), HValue::representation(), and HValue::uses().

Referenced by HGraphBuilder::CreateGraph().

void MarkRecursive ( )

inline

Definition at line 339 of file hydrogen.h.

void OrderBlocks

(

)

Definition at line 756 of file hydrogen.cc.

References v8::internal::NULL, HBasicBlock::set_block_id(), and HGraph::zone().

Referenced by HGraphBuilder::CreateGraph().

HBasicBlock* osr_loop_entry ( )

inline

Definition at line 323 of file hydrogen.h.

Referenced by HGraphBuilder::CreateGraph().

ZoneList<HUnknownOSRValue*>* osr_values ( )

inline

Definition at line 331 of file hydrogen.h.

Referenced by HGraphBuilder::CreateGraph().

const ZoneList<HPhi*>* phi_list ( ) const

inline

Definition at line 253 of file hydrogen.h.

Referenced by HGraph::EliminateUnreachablePhis(), HGraph::InsertRepresentationChanges(), and HGraph::MarkDeoptimizeOnUndefined().

bool ProcessArgumentsObject

(

)

void PropagateDeoptimizingMark

(

)

Definition at line 837 of file hydrogen.cc.

References HGraph::entry_block().

Referenced by HGraphBuilder::CreateGraph().

void ReplaceCheckedValues

(

)

void set_osr_loop_entry ( HBasicBlock *  entry )

inline

Definition at line 327 of file hydrogen.h.

void set_osr_values ( ZoneList< HUnknownOSRValue * > *  values )

inline

Definition at line 335 of file hydrogen.h.

void set_undefined_constant ( HConstant *  constant )

inline

Definition at line 285 of file hydrogen.h.

void SetArgumentsObject ( HArgumentsObject *  object )

inline

Definition at line 300 of file hydrogen.h.

HEnvironment* start_environment ( ) const

inline

Definition at line 255 of file hydrogen.h.

Zone* zone ( ) const

inline

Definition at line 250 of file hydrogen.h.

Referenced by LChunk::AddInstruction(), HGraph::CollectPhis(), HGraph::ComputeMinusZeroChecks(), HGraph::CreateBasicBlock(), HGraph::EliminateRedundantBoundsChecks(), HGraph::EliminateRedundantPhis(), HGraph::EliminateUnreachablePhis(), HGraph::GetNextValueID(), HGraph::HGraph(), HGraph::OrderBlocks(), and HBasicBlock::zone().

---

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

• src/hydrogen.h
• src/hydrogen.cc