IC Class Reference

#include <ic.h>

Inheritance diagram for IC:

Public Types
enum	UtilityId { kUtilityCount }
enum	FrameDepth { NO_EXTRA_FRAME = 0, EXTRA_CALL_FRAME = 1 }
typedef InlineCacheState	State

Public Member Functions
	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 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
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())
virtual Handle< Code >	CompileHandler (LookupResult *lookup, Handle< Object > object, Handle< String > name, Handle< Object > value, InlineCacheHolderFlag cache_holder)
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 Code::Kind	kind () const
virtual Handle< Code >	slow_stub () const
virtual Handle< Code >	megamorphic_stub ()
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 ()

Static Protected Member Functions
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 66 of file ic.h.

Member Typedef Documentation

typedef InlineCacheState State

Definition at line 80 of file ic.h.

Member Enumeration Documentation

enum FrameDepth

Enumerator
NO_EXTRA_FRAME
EXTRA_CALL_FRAME

Definition at line 84 of file ic.h.

enum UtilityId

Enumerator
kUtilityCount

Definition at line 69 of file ic.h.

Constructor & Destructor Documentation

IC	(	FrameDepth	depth,
		Isolate *	isolate
	)

Definition at line 122 of file ic.cc.

References Memory::Address_at(), StackFrameIterator::Advance(), ASSERT, Isolate::c_entry_fp(), ConstantPoolArray::cast(), IC::EXTRA_CALL_FRAME, IC::fp(), StackFrameIterator::frame(), v8::internal::handle(), ExitFrameConstants::kCallerFPOffset, StandardFrameConstants::kCallerFPOffset, ExitFrameConstants::kCallerPCOffset, StandardFrameConstants::kCallerPCOffset, ExitFrameConstants::kConstantPoolOffset, StandardFrameConstants::kConstantPoolOffset, v8::internal::NULL, and Isolate::thread_local_top().

virtual ~IC ( )

inlinevirtual

Definition at line 92 of file ic.h.

Member Function Documentation

Address address ( ) const

inline

Definition at line 41 of file ic-inl.h.

References v8::internal::code(), Code::instruction_start(), IC::isolate(), IC::pc(), Assembler::target_address_at(), and Assembler::target_address_from_return_address().

Referenced by IC::set_target(), BinaryOpIC::Transition(), and CompareIC::UpdateCaches().

Address AddressFromUtilityId ( IC::UtilityId  id )

static

Definition at line 2838 of file ic.cc.

void Clear ( Isolate *  isolate, Address  address, ConstantPoolArray *  constant_pool  )

static

Definition at line 429 of file ic.cc.

References CompareNilIC::Clear(), IC::GetTargetAtAddress(), Code::is_debug_stub(), Code::kind(), IC::target(), and UNREACHABLE.

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

inlineprotectedvirtual

Reimplemented in StoreIC, and LoadIC.

Definition at line 200 of file ic.h.

References Handle< T >::null(), and UNREACHABLE.

Referenced by IC::ComputeHandler().

Handle< Code > ComputeHandler ( LookupResult *  lookup, Handle< Object >  object, Handle< String >  name, Handle< Object >  value = Handle<Code>::null()  )

protected

Definition at line 852 of file ic.cc.

References ASSERT, v8::internal::code(), IC::CompileHandler(), Code::FAST, StubCache::FindHandler(), IC::GetCodeCacheForObject(), IC::GetCodeCacheHolder(), v8::internal::handle(), Handle< T >::is_null(), IC::isolate(), IC::kind(), Code::NORMAL, Isolate::stub_cache(), and HeapObject::UpdateMapCodeCache().

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

void CopyICToMegamorphicCache ( Handle< String >  name )

protected

Definition at line 727 of file ic.cc.

References List< T, P >::at(), v8::internal::name, IC::target(), and IC::UpdateMegamorphicCache().

Referenced by IC::PatchCache().

Handle< HeapType > CurrentTypeOf ( Handle< Object >  object, Isolate *  isolate  )

static

Definition at line 676 of file ic.cc.

References TypeImpl< class >::Constant(), and TypeImpl< class >::OfCurrently().

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

ExtraICState extra_ic_state ( ) const

inlineprotected

Definition at line 245 of file ic.h.

Referenced by LoadIC::contextual_mode(), StoreIC::generic_stub(), LoadIC::megamorphic_stub(), StoreIC::megamorphic_stub(), KeyedStoreIC::StoreElementStub(), StoreIC::strict_mode(), ToBooleanIC::ToBoolean(), BinaryOpIC::Transition(), IC::UpdateMonomorphicIC(), and IC::UpdatePolymorphicIC().

Address fp ( ) const

inlineprotected

Definition at line 155 of file ic.h.

Referenced by IC::IC().

virtual Handle<Code> generic_stub ( ) const

inlineprotectedvirtual

Reimplemented in StoreIC, and KeyedLoadIC.

Definition at line 236 of file ic.h.

References Handle< T >::null(), and UNREACHABLE.

Referenced by LoadIC::Load().

InlineCacheHolderFlag GetCodeCacheFlag ( HeapType *  type )

inlinestatic

Definition at line 170 of file ic-inl.h.

References TypeImpl< class >::Is(), v8::internal::OWN_MAP, and v8::internal::PROTOTYPE_MAP.

InlineCacheHolderFlag GetCodeCacheForObject ( Object *  object )

inlinestatic

Definition at line 150 of file ic-inl.h.

References ASSERT, v8::internal::OWN_MAP, and v8::internal::PROTOTYPE_MAP.

Referenced by IC::ComputeHandler().

HeapObject * GetCodeCacheHolder ( Isolate *  isolate, Object *  object, InlineCacheHolderFlag  holder  )

inlinestatic

Definition at line 160 of file ic-inl.h.

References HeapObject::cast(), v8::internal::OWN_MAP, and v8::internal::PROTOTYPE_MAP.

Referenced by LoadIC::CompileHandler(), IC::ComputeHandler(), and IC::TryRemoveInvalidPrototypeDependentStub().

Handle< Map > GetCodeCacheHolder ( InlineCacheHolderFlag  flag, HeapType *  type, Isolate *  isolate  )

inlinestatic

Definition at line 181 of file ic-inl.h.

References ASSERT, JSObject::cast(), Isolate::context(), v8::internal::handle(), JSFunction::instance_prototype(), TypeImpl< class >::Is(), v8::internal::map, Context::native_context(), v8::internal::PROTOTYPE_MAP, and IC::TypeToMap().

Code * GetTargetAtAddress ( Address  address, ConstantPoolArray *  constant_pool  )

inlinestaticprotected

Definition at line 112 of file ic-inl.h.

References ASSERT, Code::GetCodeFromTargetAddress(), Code::is_inline_cache_stub(), and Assembler::target_address_at().

Referenced by IC::Clear(), and IC::SetTargetAtAddress().

bool is_target_set ( )

inlineprotected

Definition at line 174 of file ic.h.

Referenced by KeyedLoadIC::Load(), and KeyedStoreIC::Store().

static bool IsCleared ( Code *  code )

inlinestatic

Definition at line 133 of file ic.h.

References Code::ic_state(), v8::internal::PREMONOMORPHIC, IC::state(), and v8::internal::UNINITIALIZED.

Referenced by CompareNilIC::Clear(), and TEST().

Isolate* isolate ( ) const

inlineprotected

Definition at line 157 of file ic.h.

Referenced by IC::address(), CompareNilIC::CompareNil(), LoadIC::CompileHandler(), StoreIC::CompileHandler(), IC::ComputeHandler(), KeyedLoadIC::generic_stub(), StoreIC::generic_stub(), LoadIC::Load(), KeyedLoadIC::Load(), KeyedLoadIC::LoadElementStub(), LoadIC::megamorphic_stub(), KeyedLoadIC::megamorphic_stub(), StoreIC::megamorphic_stub(), KeyedStoreIC::megamorphic_stub(), IC::PostPatching(), StoreIC::pre_monomorphic_stub(), KeyedStoreIC::pre_monomorphic_stub(), IC::ReferenceError(), LoadIC::slow_stub(), KeyedLoadIC::slow_stub(), StoreIC::slow_stub(), KeyedStoreIC::slow_stub(), StoreIC::Store(), KeyedStoreIC::Store(), KeyedStoreIC::StoreElementStub(), ToBooleanIC::ToBoolean(), BinaryOpIC::Transition(), IC::TryRemoveInvalidPrototypeDependentStub(), IC::TypeError(), LoadIC::UpdateCaches(), StoreIC::UpdateCaches(), CompareIC::UpdateCaches(), IC::UpdateMegamorphicCache(), IC::UpdateMonomorphicIC(), and IC::UpdatePolymorphicIC().

bool IsTransitionOfMonomorphicTarget ( Map *  source_map, Map *  target_map  )

protected

Definition at line 738 of file ic.cc.

References Map::elements_kind(), v8::internal::IsMoreGeneralElementsKindTransition(), Map::LookupElementsTransitionMap(), and v8::internal::NULL.

Referenced by KeyedStoreIC::StoreElementStub(), and IC::UpdatePolymorphicIC().

virtual Code::Kind kind ( ) const

inlineprotectedvirtual

Reimplemented in KeyedStoreIC, StoreIC, KeyedLoadIC, and LoadIC.

Definition at line 224 of file ic.h.

References v8::internal::STUB, and UNREACHABLE.

Referenced by IC::ComputeHandler(), IC::UpdateMonomorphicIC(), and IC::UpdatePolymorphicIC().

template Handle< HeapType > MapToType< HeapType > ( Handle< Map >  map, typename T::Region *  region  )

static

Definition at line 696 of file ic.cc.

References v8::internal::HEAP_NUMBER_TYPE, and v8::internal::ODDBALL_TYPE.

void MarkMonomorphicPrototypeFailure ( )

inline

Definition at line 99 of file ic.h.

References v8::internal::MONOMORPHIC_PROTOTYPE_FAILURE.

Referenced by IC::UpdateState().

virtual Handle<Code> megamorphic_stub ( )

inlineprotectedvirtual

Reimplemented in KeyedStoreIC, StoreIC, KeyedLoadIC, and LoadIC.

Definition at line 232 of file ic.h.

References Handle< T >::null(), and UNREACHABLE.

Referenced by IC::PatchCache().

void PatchCache ( Handle< HeapType >  type, Handle< String >  name, Handle< Code >  code  )

protected

Definition at line 753 of file ic.cc.

References IC::CopyICToMegamorphicCache(), v8::internal::DEBUG_STUB, v8::internal::GENERIC, v8::internal::MEGAMORPHIC, IC::megamorphic_stub(), v8::internal::MONOMORPHIC, v8::internal::MONOMORPHIC_PROTOTYPE_FAILURE, v8::internal::POLYMORPHIC, v8::internal::PREMONOMORPHIC, IC::set_target(), IC::state(), IC::target(), v8::internal::UNINITIALIZED, UNREACHABLE, IC::UpdateMegamorphicCache(), IC::UpdateMonomorphicIC(), and IC::UpdatePolymorphicIC().

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

Address pc ( ) const

inlineprotected

Definition at line 156 of file ic.h.

Referenced by IC::address().

void PostPatching ( Address  address, Code *  target, Code *  old_target  )

staticprotected

Definition at line 398 of file ic.cc.

References TypeFeedbackInfo::cast(), TypeFeedbackInfo::change_ic_with_type_info_count(), TypeFeedbackInfo::change_own_type_change_checksum(), HeapObject::GetHeap(), Code::ic_state(), v8::internal::info, Code::is_inline_cache_stub(), IC::isolate(), Heap::isolate(), Code::kind(), RuntimeProfiler::NotifyICChanged(), Isolate::runtime_profiler(), Code::set_profiler_ticks(), and Code::type_feedback_info().

Referenced by IC::SetTargetAtAddress().

Failure * ReferenceError ( const char *  type, Handle< String >  name  )

protected

Definition at line 380 of file ic.cc.

References Isolate::factory(), v8::internal::HandleVector(), IC::isolate(), Factory::NewReferenceError(), and Isolate::Throw().

Referenced by LoadIC::Load(), and StoreIC::Store().

void set_extra_ic_state ( ExtraICState  state )

inlineprotected

Definition at line 246 of file ic.h.

References IC::state().

void set_target ( Code *  code )

inlineprotected

Definition at line 169 of file ic.h.

References IC::address(), and IC::SetTargetAtAddress().

Referenced by CompareNilIC::CompareNil(), IC::PatchCache(), LoadIC::set_target(), ToBooleanIC::ToBoolean(), BinaryOpIC::Transition(), CompareIC::UpdateCaches(), IC::UpdateMonomorphicIC(), and IC::UpdatePolymorphicIC().

void SetTargetAtAddress ( Address  address, Code *  target, ConstantPoolArray *  constant_pool  )

inlinestaticprotected

Definition at line 124 of file ic-inl.h.

References ASSERT, Code::extra_ic_state(), HeapObject::GetHeap(), StoreIC::GetStrictMode(), IC::GetTargetAtAddress(), Code::instruction_start(), Code::is_compare_ic_stub(), Code::is_inline_cache_stub(), Code::kind(), Heap::MARK_COMPACT, IC::PostPatching(), and Assembler::set_target_address_at().

Referenced by CompareNilIC::Clear(), and IC::set_target().

virtual Handle<Code> slow_stub ( ) const

inlineprotectedvirtual

Reimplemented in KeyedStoreIC, StoreIC, KeyedLoadIC, and LoadIC.

Definition at line 228 of file ic.h.

References Handle< T >::null(), and UNREACHABLE.

State state ( ) const

inline

Definition at line 94 of file ic.h.

Referenced by IC::IsCleared(), LoadIC::Load(), KeyedLoadIC::Load(), KeyedLoadIC::LoadElementStub(), IC::PatchCache(), IC::set_extra_ic_state(), StoreIC::Store(), KeyedStoreIC::StoreElementStub(), BinaryOpIC::Transition(), LoadIC::UpdateCaches(), and IC::UpdateState().

Handle<Code> target ( ) const

inlineprotected

Definition at line 153 of file ic.h.

Referenced by IC::Clear(), CompareNilIC::CompareNil(), IC::CopyICToMegamorphicCache(), KeyedLoadIC::KeyedLoadIC(), KeyedStoreIC::KeyedStoreIC(), KeyedLoadIC::Load(), KeyedLoadIC::LoadElementStub(), IC::PatchCache(), LoadIC::set_target(), KeyedStoreIC::Store(), KeyedStoreIC::StoreElementStub(), ToBooleanIC::ToBoolean(), BinaryOpIC::Transition(), IC::TryRemoveInvalidHandlers(), IC::TryRemoveInvalidPrototypeDependentStub(), CompareIC::UpdateCaches(), and IC::UpdatePolymorphicIC().

void TryRemoveInvalidHandlers ( Handle< Map >  map, Handle< String >  name  )

protected

Definition at line 325 of file ic.cc.

References List< T, P >::at(), and IC::target().

Referenced by IC::TryRemoveInvalidPrototypeDependentStub(), and IC::UpdateState().

bool TryRemoveInvalidPrototypeDependentStub ( Handle< Object >  receiver, Handle< String >  name  )

protected

Definition at line 249 of file ic.cc.

References GlobalObject::cast(), Map::elements_kind(), Code::ExtractCacheHolderFromFlags(), v8::internal::flags, IC::GetCodeCacheHolder(), GlobalObject::GetPropertyCell(), Object::GetPrototype(), Map::is_deprecated(), TypeImpl< class >::IsConstant(), v8::internal::IsMoreGeneralElementsKindTransition(), IC::isolate(), JSObject::LocalLookupRealNamedProperty(), v8::internal::map, v8::internal::NULL, v8::internal::OWN_MAP, v8::internal::PROTOTYPE_MAP, IC::target(), IC::TryRemoveInvalidHandlers(), and PropertyCell::type().

Referenced by IC::UpdateState().

Failure * TypeError ( const char *  type, Handle< Object >  object, Handle< Object >  key  )

protected

Definition at line 369 of file ic.cc.

References Isolate::factory(), v8::internal::HandleVector(), IC::isolate(), Factory::NewTypeError(), and Isolate::Throw().

Referenced by LoadIC::Load(), and StoreIC::Store().

Handle< Map > TypeToMap ( HeapType *  type, Isolate *  isolate  )

static

Definition at line 683 of file ic.cc.

References TypeImpl< class >::AsClass(), TypeImpl< class >::AsConstant(), ASSERT, Isolate::factory(), v8::internal::handle(), TypeImpl< class >::Is(), TypeImpl< class >::IsClass(), TypeImpl< class >::IsConstant(), and v8::internal::map.

Referenced by IC::GetCodeCacheHolder(), and IC::UpdateMegamorphicCache().

void UpdateMegamorphicCache ( HeapType *  type, Name *  name, Code *  code  )

protectedvirtual

Reimplemented in KeyedStoreIC, and KeyedLoadIC.

Definition at line 844 of file ic.cc.

References IC::isolate(), v8::internal::map, StubCache::Set(), Isolate::stub_cache(), and IC::TypeToMap().

Referenced by IC::CopyICToMegamorphicCache(), and IC::PatchCache().

void UpdateMonomorphicIC ( Handle< HeapType >  type, Handle< Code >  handler, Handle< String >  name  )

protected

Definition at line 717 of file ic.cc.

References StubCache::ComputeMonomorphicIC(), IC::extra_ic_state(), IC::isolate(), IC::kind(), IC::set_target(), and Isolate::stub_cache().

Referenced by IC::PatchCache().

bool UpdatePolymorphicIC ( Handle< HeapType >  type, Handle< String >  name, Handle< Code >  code  )

protected

Definition at line 620 of file ic.cc.

References List< T, P >::Add(), List< T, P >::at(), StubCache::ComputePolymorphicIC(), IC::extra_ic_state(), IC::isolate(), IC::IsTransitionOfMonomorphicTarget(), IC::kind(), List< T, P >::Set(), IC::set_target(), Isolate::stub_cache(), and IC::target().

Referenced by IC::PatchCache().

void UpdateState	(	Handle< Object >	receiver,
		Handle< Object >	name
	)

Definition at line 339 of file ic.cc.

References v8::internal::handle(), Value::IsNull(), Value::IsString(), Value::IsUndefined(), v8::internal::map, IC::MarkMonomorphicPrototypeFailure(), v8::internal::MONOMORPHIC, v8::internal::POLYMORPHIC, IC::state(), IC::TryRemoveInvalidHandlers(), IC::TryRemoveInvalidPrototypeDependentStub(), and v8::internal::UNINITIALIZED.

void UpdateTarget ( )

inlineprotected

Definition at line 251 of file ic.h.

References v8::internal::handle().

Referenced by BinaryOpIC::Transition().

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

• src/ic.h
• src/ic-inl.h
• src/ic.cc