LoadIC Class Reference

#include <ic.h>

Inheritance diagram for LoadIC:

Collaboration diagram for LoadIC:

Data Structures
class	ContextualModeBits

Public Member Functions
	STATIC_ASSERT (static_cast< int >(NOT_CONTEXTUAL)==0)
ContextualMode	contextual_mode () const
	LoadIC (FrameDepth depth, Isolate *isolate)
bool	IsUndeclaredGlobal (Handle< Object > receiver)
MUST_USE_RESULT MaybeObject *	Load (Handle< Object > object, Handle< String > name)
Public Member Functions inherited from IC
	IC (FrameDepth depth, Isolate *isolate)
virtual	~IC ()
State	state () const
Address	address () const
void	UpdateState (Handle< Object > receiver, Handle< Object > name)
void	MarkMonomorphicPrototypeFailure ()

Static Public Member Functions
static ExtraICState	ComputeExtraICState (ContextualMode contextual_mode)
static ContextualMode	GetContextualMode (ExtraICState state)
static void	GenerateInitialize (MacroAssembler *masm)
static void	GeneratePreMonomorphic (MacroAssembler *masm)
static void	GenerateMiss (MacroAssembler *masm)
static void	GenerateMegamorphic (MacroAssembler *masm)
static void	GenerateNormal (MacroAssembler *masm)
static void	GenerateRuntimeGetProperty (MacroAssembler *masm)
static Handle< Code >	initialize_stub (Isolate *isolate, ExtraICState extra_state)
Static Public Member Functions inherited from IC
static Address	AddressFromUtilityId (UtilityId id)
static void	Clear (Isolate *isolate, Address address, ConstantPoolArray *constant_pool)
static InlineCacheHolderFlag	GetCodeCacheForObject (Object *object)
static HeapObject *	GetCodeCacheHolder (Isolate *isolate, Object *object, InlineCacheHolderFlag holder)
static InlineCacheHolderFlag	GetCodeCacheFlag (HeapType *type)
static Handle< Map >	GetCodeCacheHolder (InlineCacheHolderFlag flag, HeapType *type, Isolate *isolate)
static bool	IsCleared (Code *code)
static Handle< Map >	TypeToMap (HeapType *type, Isolate *isolate)
template<class T >
static T::TypeHandle	MapToType (Handle< Map > map, typename T::Region *region)
static Handle< HeapType >	CurrentTypeOf (Handle< Object > object, Isolate *isolate)

Protected Member Functions
virtual Code::Kind	kind () const
void	set_target (Code *code)
virtual Handle< Code >	slow_stub () const
virtual Handle< Code >	megamorphic_stub ()
void	UpdateCaches (LookupResult *lookup, Handle< Object > object, Handle< String > name)
virtual Handle< Code >	CompileHandler (LookupResult *lookup, Handle< Object > object, Handle< String > name, Handle< Object > unused, InlineCacheHolderFlag cache_holder)
Protected Member Functions inherited from IC
Handle< Code >	target () const
Address	fp () const
Address	pc () const
Isolate *	isolate () const
void	set_target (Code *code)
bool	is_target_set ()
Failure *	TypeError (const char *type, Handle< Object > object, Handle< Object > key)
Failure *	ReferenceError (const char *type, Handle< String > name)
Handle< Code >	ComputeHandler (LookupResult *lookup, Handle< Object > object, Handle< String > name, Handle< Object > value=Handle< Code >::null())
void	UpdateMonomorphicIC (Handle< HeapType > type, Handle< Code > handler, Handle< String > name)
bool	UpdatePolymorphicIC (Handle< HeapType > type, Handle< String > name, Handle< Code > code)
virtual void	UpdateMegamorphicCache (HeapType *type, Name *name, Code *code)
void	CopyICToMegamorphicCache (Handle< String > name)
bool	IsTransitionOfMonomorphicTarget (Map *source_map, Map *target_map)
void	PatchCache (Handle< HeapType > type, Handle< String > name, Handle< Code > code)
virtual Handle< Code >	generic_stub () const
bool	TryRemoveInvalidPrototypeDependentStub (Handle< Object > receiver, Handle< String > name)
void	TryRemoveInvalidHandlers (Handle< Map > map, Handle< String > name)
ExtraICState	extra_ic_state () const
void	set_extra_ic_state (ExtraICState state)
void	UpdateTarget ()

Friends
class	IC

Additional Inherited Members
Public Types inherited from IC
enum	UtilityId { kUtilityCount }
enum	FrameDepth { NO_EXTRA_FRAME = 0, EXTRA_CALL_FRAME = 1 }
typedef InlineCacheState	State
Static Protected Member Functions inherited from IC
static Code *	GetTargetAtAddress (Address address, ConstantPoolArray *constant_pool)
static void	SetTargetAtAddress (Address address, Code *target, ConstantPoolArray *constant_pool)
static void	PostPatching (Address address, Code *target, Code *old_target)

Detailed Description

Definition at line 304 of file ic.h.

Constructor & Destructor Documentation

LoadIC ( FrameDepth  depth, Isolate *  isolate  )

inlineexplicit

Definition at line 322 of file ic.h.

References ASSERT.

Member Function Documentation

Handle< Code > CompileHandler ( LookupResult *  lookup, Handle< Object >  object, Handle< String >  name, Handle< Object >  unused, InlineCacheHolderFlag  cache_holder  )

protectedvirtual

Reimplemented from IC.

Definition at line 878 of file ic.cc.

References ASSERT, Isolate::builtins(), v8::internal::CALLBACKS, Handle< T >::cast(), v8::internal::code(), v8::internal::CONSTANT, IC::CurrentTypeOf(), v8::internal::FIELD, IC::GetCodeCacheHolder(), v8::internal::handle(), v8::internal::info, v8::internal::INTERCEPTOR, PropertyIndex::is_inobject(), IC::isolate(), Value::IsString(), LoadIC::kind(), String::kLengthOffset, v8::internal::kPointerSize, v8::internal::NORMAL, v8::internal::SLOPPY, LoadIC::slow_stub(), PropertyIndex::translate(), and HeapObject::UpdateMapCodeCache().

static ExtraICState ComputeExtraICState ( ContextualMode  contextual_mode )

inlinestatic

Definition at line 310 of file ic.h.

References BitFieldBase< ContextualMode, shift, size, uint32_t >::encode().

ContextualMode contextual_mode ( ) const

inline

Definition at line 318 of file ic.h.

References BitFieldBase< ContextualMode, shift, size, uint32_t >::decode(), and IC::extra_ic_state().

Referenced by LoadIC::IsUndeclaredGlobal().

static void GenerateInitialize ( MacroAssembler *  masm )

inlinestatic

Definition at line 339 of file ic.h.

References LoadIC::GenerateMiss().

static void GenerateMegamorphic ( MacroAssembler *  masm )

static

static void GenerateMiss ( MacroAssembler *  masm )

static

Referenced by LoadIC::GenerateInitialize(), and LoadIC::GeneratePreMonomorphic().

static void GenerateNormal ( MacroAssembler *  masm )

static

static void GeneratePreMonomorphic ( MacroAssembler *  masm )

inlinestatic

Definition at line 340 of file ic.h.

References LoadIC::GenerateMiss().

static void GenerateRuntimeGetProperty ( MacroAssembler *  masm )

static

static ContextualMode GetContextualMode ( ExtraICState  state )

inlinestatic

Definition at line 314 of file ic.h.

References BitFieldBase< ContextualMode, shift, size, uint32_t >::decode().

Referenced by LoadStubCompiler::contextual_mode(), and LoadIC::set_target().

Handle< Code > initialize_stub ( Isolate *  isolate, ExtraICState  extra_state  )

static

Definition at line 782 of file ic.cc.

References StubCache::ComputeLoad(), Isolate::stub_cache(), and v8::internal::UNINITIALIZED.

Referenced by TEST().

bool IsUndeclaredGlobal ( Handle< Object >  receiver )

inline

Definition at line 329 of file ic.h.

References ASSERT, v8::internal::CONTEXTUAL, and LoadIC::contextual_mode().

Referenced by LoadIC::Load().

virtual Code::Kind kind ( ) const

inlineprotectedvirtual

Reimplemented from IC.

Reimplemented in KeyedLoadIC.

Definition at line 355 of file ic.h.

Referenced by LoadIC::CompileHandler(), LoadIC::Load(), and LoadIC::UpdateCaches().

MaybeObject * Load	(	Handle< Object >	object,
		Handle< String >	name
	)

Definition at line 530 of file ic.cc.

References ABSENT, ASSERT, Handle< T >::cast(), Accessors::FunctionGetPrototype(), v8::internal::GENERIC, IC::generic_stub(), Runtime::GetElementOrCharAt(), Object::GetProperty(), Handle< T >::is_null(), IC::isolate(), LoadIC::IsUndeclaredGlobal(), Value::IsUndefined(), LoadIC::kind(), LOG, v8::internal::MEGAMORPHIC, LoadIC::megamorphic_stub(), v8::internal::PREMONOMORPHIC, v8::internal::PrintF(), IC::ReferenceError(), RETURN_IF_EMPTY_HANDLE, LoadIC::set_target(), IC::state(), IC::TypeError(), v8::internal::UNINITIALIZED, and LoadIC::UpdateCaches().

Referenced by KeyedLoadIC::Load().

Handle< Code > megamorphic_stub ( )

protectedvirtual

Reimplemented from IC.

Reimplemented in KeyedLoadIC.

Definition at line 794 of file ic.cc.

References StubCache::ComputeLoad(), IC::extra_ic_state(), IC::isolate(), v8::internal::MEGAMORPHIC, and Isolate::stub_cache().

Referenced by LoadIC::Load().

void set_target ( Code *  code )

inlineprotected

Definition at line 357 of file ic.h.

References ASSERT, Code::extra_ic_state(), LoadIC::GetContextualMode(), IC::set_target(), and IC::target().

Referenced by LoadIC::Load(), KeyedLoadIC::Load(), and LoadIC::UpdateCaches().

virtual Handle<Code> slow_stub ( ) const

inlineprotectedvirtual

Reimplemented from IC.

Reimplemented in KeyedLoadIC.

Definition at line 365 of file ic.h.

References Isolate::builtins(), and IC::isolate().

Referenced by LoadIC::CompileHandler(), and LoadIC::UpdateCaches().

STATIC_ASSERT

(

static_cast< int >

NOT_CONTEXTUAL = =0

)

void UpdateCaches ( LookupResult *  lookup, Handle< Object >  object, Handle< String >  name  )

protected

Definition at line 812 of file ic.cc.

References v8::internal::code(), IC::ComputeHandler(), StubCache::ComputeLoadNonexistent(), IC::CurrentTypeOf(), IC::isolate(), LoadIC::kind(), IC::PatchCache(), LoadIC::set_target(), LoadIC::slow_stub(), IC::state(), Isolate::stub_cache(), TRACE_IC, and v8::internal::UNINITIALIZED.

Referenced by LoadIC::Load().

Friends And Related Function Documentation

friend class IC

friend

Definition at line 402 of file ic.h.

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

• src/ic.h
• src/ic.cc