#include <feedback-vector.h>

Inheritance diagram for v8::internal::FeedbackMetadata:

Collaboration diagram for v8::internal::FeedbackMetadata:

Classes
class	BodyDescriptor

Public Member Functions
int32_t	slot_count (AcquireLoadTag) const

int32_t	create_closure_slot_count (AcquireLoadTag) const

bool	SpecDiffersFrom (const FeedbackVectorSpec *other_spec) const

bool	is_empty () const

V8_EXPORT_PRIVATE FeedbackSlotKind	GetKind (FeedbackSlot slot) const

V8_EXPORT_PRIVATE uint16_t	GetCreateClosureParameterCount (int index) const

int	AllocatedSize ()

template<typename IsolateT >
Handle< FeedbackMetadata >	New (IsolateT isolate, const FeedbackVectorSpec spec)

Public Member Functions inherited from v8::internal::HeapObject
constexpr	HeapObject ()=default

void	set_map (Isolate *isolate, Tagged< Map > value)

template<typename IsolateT >
void	set_map_safe_transition (IsolateT *isolate, Tagged< Map > value)

ObjectSlot	map_slot () const

void	set_map_no_write_barrier (Isolate *isolate, Tagged< Map > value, RelaxedStoreTag=kRelaxedStore)

void	set_map_no_write_barrier (Isolate *isolate, Tagged< Map > value, ReleaseStoreTag)

void	set_map_safe_transition_no_write_barrier (Isolate *isolate, Tagged< Map > value, RelaxedStoreTag=kRelaxedStore)

void	set_map_safe_transition_no_write_barrier (Isolate *isolate, Tagged< Map > value, ReleaseStoreTag)

template<typename IsolateT >
void	set_map (IsolateT *isolate, Tagged< Map > value, ReleaseStoreTag)

template<typename IsolateT >
void	set_map_safe_transition (IsolateT *isolate, Tagged< Map > value, ReleaseStoreTag)

bool	release_compare_and_swap_map_word_forwarded (MapWord old_map_word, Tagged< HeapObject > new_target_object)

bool	relaxed_compare_and_swap_map_word_forwarded (MapWord old_map_word, Tagged< HeapObject > new_target_object)

template<typename IsolateT >
void	set_map_after_allocation (IsolateT *isolate, Tagged< Map > value, WriteBarrierMode mode=UPDATE_WRITE_BARRIER)

void	set_map_word (Tagged< Map > map, RelaxedStoreTag)

void	set_map_word_forwarded (Tagged< HeapObject > target_object, RelaxedStoreTag)

void	set_map_word (Tagged< Map > map, ReleaseStoreTag)

void	set_map_word_forwarded (Tagged< HeapObject > target_object, ReleaseStoreTag)

ReadOnlyRoots	EarlyGetReadOnlyRoots () const

Address	address () const

V8_EXPORT_PRIVATE int	SizeFromMap (Tagged< Map > map) const

template<class T > requires (std::is_arithmetic_v<T> \|\| std::is_enum_v<T> \|\| std::is_pointer_v<T>)
T	ReadField (size_t offset) const

template<class T > requires (std::is_arithmetic_v<T> \|\| std::is_enum_v<T> \|\| std::is_pointer_v<T>)
void	WriteField (size_t offset, T value) const

template<class T > requires ((std::is_arithmetic_v<T> \|\| std::is_enum_v<T>) && !std::is_floating_point_v<T>)
T	Relaxed_ReadField (size_t offset) const

template<class T > requires ((std::is_arithmetic_v<T> \|\| std::is_enum_v<T>) && !std::is_floating_point_v<T>)
void	Relaxed_WriteField (size_t offset, T value)

template<class T > requires ((std::is_arithmetic_v<T> \|\| std::is_enum_v<T>) && !std::is_floating_point_v<T>)
T	Acquire_ReadField (size_t offset) const

Address	ReadSandboxedPointerField (size_t offset, PtrComprCageBase cage_base) const

void	WriteSandboxedPointerField (size_t offset, PtrComprCageBase cage_base, Address value)

void	WriteSandboxedPointerField (size_t offset, Isolate *isolate, Address value)

size_t	ReadBoundedSizeField (size_t offset) const

void	WriteBoundedSizeField (size_t offset, size_t value)

template<ExternalPointerTag tag>
void	InitExternalPointerField (size_t offset, IsolateForSandbox isolate, Address value, WriteBarrierMode mode=UPDATE_WRITE_BARRIER)

template<ExternalPointerTagRange tag_range>
Address	ReadExternalPointerField (size_t offset, IsolateForSandbox isolate) const

template<CppHeapPointerTag lower_bound, CppHeapPointerTag upper_bound>
Address	ReadCppHeapPointerField (size_t offset, IsolateForPointerCompression isolate) const

Address	ReadCppHeapPointerField (size_t offset, IsolateForPointerCompression isolate, CppHeapPointerTagRange tag_range) const

template<ExternalPointerTag tag>
void	WriteExternalPointerField (size_t offset, IsolateForSandbox isolate, Address value)

void	SetupLazilyInitializedExternalPointerField (size_t offset)

bool	IsLazilyInitializedExternalPointerFieldInitialized (size_t offset) const

template<ExternalPointerTag tag>
void	WriteLazilyInitializedExternalPointerField (size_t offset, IsolateForSandbox isolate, Address value)

void	SetupLazilyInitializedCppHeapPointerField (size_t offset)

template<CppHeapPointerTag tag>
void	WriteLazilyInitializedCppHeapPointerField (size_t offset, IsolateForPointerCompression isolate, Address value)

void	WriteLazilyInitializedCppHeapPointerField (size_t offset, IsolateForPointerCompression isolate, Address value, CppHeapPointerTag tag)

template<IndirectPointerTag tag>
Tagged< ExposedTrustedObject >	ReadTrustedPointerField (size_t offset, IsolateForSandbox isolate) const

template<IndirectPointerTag tag>
Tagged< ExposedTrustedObject >	ReadTrustedPointerField (size_t offset, IsolateForSandbox isolate, AcquireLoadTag) const

template<IndirectPointerTag tag>
Tagged< Object >	ReadMaybeEmptyTrustedPointerField (size_t offset, IsolateForSandbox isolate, AcquireLoadTag) const

template<IndirectPointerTag tag>
void	WriteTrustedPointerField (size_t offset, Tagged< ExposedTrustedObject > value)

bool	IsTrustedPointerFieldEmpty (size_t offset) const

bool	IsTrustedPointerFieldUnpublished (size_t offset, IndirectPointerTag tag, IsolateForSandbox isolate) const

void	ClearTrustedPointerField (size_t offest)

void	ClearTrustedPointerField (size_t offest, ReleaseStoreTag)

Tagged< Code >	ReadCodePointerField (size_t offset, IsolateForSandbox isolate) const

void	WriteCodePointerField (size_t offset, Tagged< Code > value)

bool	IsCodePointerFieldEmpty (size_t offset) const

void	ClearCodePointerField (size_t offest)

Address	ReadCodeEntrypointViaCodePointerField (size_t offset, CodeEntrypointTag tag) const

void	WriteCodeEntrypointViaCodePointerField (size_t offset, Address value, CodeEntrypointTag tag)

ObjectSlot	RawField (int byte_offset) const

MaybeObjectSlot	RawMaybeWeakField (int byte_offset) const

InstructionStreamSlot	RawInstructionStreamField (int byte_offset) const

ExternalPointerSlot	RawExternalPointerField (int byte_offset, ExternalPointerTagRange tag_range) const

CppHeapPointerSlot	RawCppHeapPointerField (int byte_offset) const

IndirectPointerSlot	RawIndirectPointerField (int byte_offset, IndirectPointerTag tag) const

WriteBarrierMode	GetWriteBarrierMode (const DisallowGarbageCollection &promise)

void	HeapObjectShortPrint (std::ostream &os)

void	Print ()

bool	CheckRequiredAlignment (PtrComprCageBase cage_base) const

bool	NeedsRehashing (InstanceType instance_type) const

bool	NeedsRehashing (PtrComprCageBase cage_base) const

bool	CanBeRehashed (PtrComprCageBase cage_base) const

template<typename IsolateT >
void	RehashBasedOnMap (IsolateT *isolate)

Address	GetFieldAddress (int field_offset) const

HeapObject *	operator-> ()

const HeapObject *	operator-> () const

template<HeapObject::EmitWriteBarrier emit_write_barrier, typename MemoryOrder , typename IsolateT >
void	set_map (IsolateT *isolate, Tagged< Map > value, MemoryOrder order, VerificationMode mode)

Public Member Functions inherited from v8::internal::TaggedImpl< HeapObjectReferenceType::STRONG, Address >
V8_INLINE constexpr	TaggedImpl ()

V8_INLINE constexpr	TaggedImpl (Address ptr)

	operator bool () const=delete

constexpr bool	operator== (TaggedImpl< kOtherRefType, U > other) const

constexpr bool	operator!= (TaggedImpl< kOtherRefType, U > other) const

constexpr bool	SafeEquals (TaggedImpl< kOtherRefType, Address > other) const

constexpr bool	operator< (TaggedImpl other) const

V8_INLINE constexpr Address	ptr () const

constexpr bool	IsObject () const

constexpr bool	IsSmi () const

bool	ToSmi (Tagged< Smi > *value) const

Tagged< Smi >	ToSmi () const

constexpr bool	IsHeapObject () const

constexpr bool	IsCleared () const

constexpr bool	IsStrongOrWeak () const

constexpr bool	IsStrong () const

constexpr bool	IsStrongOrSmi () const

constexpr bool	IsWeak () const

constexpr bool	IsWeakOrCleared () const

bool	GetHeapObjectIfStrong (Tagged< HeapObject > *result) const

bool	GetHeapObjectIfStrong (Isolate isolate, Tagged< HeapObject > result) const

Tagged< HeapObject >	GetHeapObjectAssumeStrong () const

Tagged< HeapObject >	GetHeapObjectAssumeStrong (Isolate *isolate) const

bool	GetHeapObjectIfWeak (Tagged< HeapObject > *result) const

bool	GetHeapObjectIfWeak (Isolate isolate, Tagged< HeapObject > result) const

Tagged< HeapObject >	GetHeapObjectAssumeWeak () const

Tagged< HeapObject >	GetHeapObjectAssumeWeak (Isolate *isolate) const

bool	GetHeapObject (Tagged< HeapObject > *result) const

bool	GetHeapObject (Isolate isolate, Tagged< HeapObject > result) const

bool	GetHeapObject (Tagged< HeapObject > result, HeapObjectReferenceType reference_type) const

bool	GetHeapObject (Isolate isolate, Tagged< HeapObject > result, HeapObjectReferenceType *reference_type) const

Tagged< HeapObject >	GetHeapObject () const

Tagged< HeapObject >	GetHeapObject (Isolate *isolate) const

Tagged< Object >	GetHeapObjectOrSmi () const

Tagged< Object >	GetHeapObjectOrSmi (Isolate *isolate) const

Tagged< T >	cast () const

Static Public Member Functions
static int	GetSlotSize (FeedbackSlotKind kind)

template<typename IsolateT >
static V8_EXPORT_PRIVATE Handle< FeedbackMetadata >	New (IsolateT isolate, const FeedbackVectorSpec spec)

static const char *	Kind2String (FeedbackSlotKind kind)

static int	SizeFor (int slot_count, int create_closure_slot_count)

Static Public Member Functions inherited from v8::internal::HeapObject
static void	SetFillerMap (const WritableFreeSpace &writable_page, Tagged< Map > value)

static Tagged< HeapObject >	FromAddress (Address address)

template<typename CompareAndSwapImpl >
static Tagged< Object >	SeqCst_CompareAndSwapField (Tagged< Object > expected_value, Tagged< Object > new_value, CompareAndSwapImpl compare_and_swap_impl)

template<typename ObjectType >
static JSDispatchHandle	AllocateAndInstallJSDispatchHandle (ObjectType host, size_t offset, Isolate *isolate, uint16_t parameter_count, DirectHandle< Code > code, WriteBarrierMode mode=WriteBarrierMode::UPDATE_WRITE_BARRIER)

static void	Print (Tagged< Object > obj)

static void	Print (Tagged< Object > obj, std::ostream &os)

static AllocationAlignment	RequiredAlignment (Tagged< Map > map)

Private Types
using	VectorICComputer

Private Member Functions
int32_t	get (int index) const

void	set (int index, int32_t value)

int	word_count () const

void	SetKind (FeedbackSlot slot, FeedbackSlotKind kind)

void	SetCreateClosureParameterCount (int index, uint16_t parameter_count)

	OBJECT_CONSTRUCTORS (FeedbackMetadata, HeapObject)

Static Private Member Functions
static int	word_count (int slot_count)

Static Private Attributes
static const int	kFeedbackSlotKindBits = 5

Friends
class	AccessorAssembler

Additional Inherited Members
Public Types inherited from v8::internal::HeapObject
using	MapField = TaggedField<MapWord, HeapObject::kMapOffset>

Static Public Attributes inherited from v8::internal::HeapObject
static constexpr int	kMapOffset = offsetof(HeapObjectLayout, map_)

static constexpr int	kHeaderSize = sizeof(HeapObjectLayout)

Static Public Attributes inherited from v8::internal::TaggedImpl< HeapObjectReferenceType::STRONG, Address >
static const bool	kIsFull

static const bool	kCanBeWeak

Protected Member Functions inherited from v8::internal::HeapObject
V8_INLINE constexpr	HeapObject (Address ptr, HeapObject::SkipTypeCheckTag)

	HeapObject (Address ptr)

Address	field_address (size_t offset) const

Protected Member Functions inherited from v8::internal::TaggedImpl< HeapObjectReferenceType::STRONG, Address >
Address *	ptr_location ()

const Address *	ptr_location () const

Static Protected Member Functions inherited from v8::internal::HeapObject
template<typename T >
static bool	IsSmi (T obj)

template<typename T >
static bool	IsHeapObject (T obj)

Detailed Description

Definition at line 726 of file feedback-vector.h.

Member Typedef Documentation

◆ VectorICComputer

using v8::internal::FeedbackMetadata::VectorICComputer

private

Initial value:

 
      base::BitSetComputer<FeedbackSlotKind, kFeedbackSlotKindBits,
                           kInt32Size * kBitsPerByte, uint32_t>

Definition at line 809 of file feedback-vector.h.

Member Function Documentation

◆ AllocatedSize()

int v8::internal::FeedbackMetadata::AllocatedSize ( )

inline

Definition at line 83 of file feedback-vector-inl.h.

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◆ create_closure_slot_count()

int32_t v8::internal::FeedbackMetadata::create_closure_slot_count ( AcquireLoadTag ) const

inline

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◆ get()

int32_t v8::internal::FeedbackMetadata::get ( int index ) const

inlineprivate

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◆ GetCreateClosureParameterCount()

uint16_t v8::internal::FeedbackMetadata::GetCreateClosureParameterCount ( int index ) const

Definition at line 68 of file feedback-vector.cc.

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◆ GetKind()

FeedbackSlotKind v8::internal::FeedbackMetadata::GetKind ( FeedbackSlot slot ) const

Definition at line 55 of file feedback-vector.cc.

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◆ GetSlotSize()

int v8::internal::FeedbackMetadata::GetSlotSize ( FeedbackSlotKind kind )

inlinestatic

Definition at line 92 of file feedback-vector-inl.h.

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◆ is_empty()

bool v8::internal::FeedbackMetadata::is_empty ( ) const

inline

Definition at line 78 of file feedback-vector-inl.h.

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◆ Kind2String()

const char * v8::internal::FeedbackMetadata::Kind2String ( FeedbackSlotKind kind )

static

Definition at line 148 of file feedback-vector.cc.

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◆ New() [1/2]

template<typename IsolateT >

Handle< FeedbackMetadata > v8::internal::FeedbackMetadata::New	(	IsolateT *	isolate,
		const FeedbackVectorSpec *	spec )

Definition at line 83 of file feedback-vector.cc.

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◆ New() [2/2]

template<typename IsolateT >

static V8_EXPORT_PRIVATE Handle< FeedbackMetadata > v8::internal::FeedbackMetadata::New	(	IsolateT *	isolate,
		const FeedbackVectorSpec *	spec )

static

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◆ OBJECT_CONSTRUCTORS()

v8::internal::FeedbackMetadata::OBJECT_CONSTRUCTORS	(	FeedbackMetadata	,
		HeapObject	)

private

◆ set()

void v8::internal::FeedbackMetadata::set	(	int	index,
		int32_t	value )

inlineprivate

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◆ SetCreateClosureParameterCount()

void v8::internal::FeedbackMetadata::SetCreateClosureParameterCount	(	int	index,
		uint16_t	parameter_count )

private

Definition at line 74 of file feedback-vector.cc.

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◆ SetKind()

void v8::internal::FeedbackMetadata::SetKind	(	FeedbackSlot	slot,
		FeedbackSlotKind	kind )

private

Definition at line 61 of file feedback-vector.cc.

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◆ SizeFor()

static int v8::internal::FeedbackMetadata::SizeFor	(	int	slot_count,
		int	create_closure_slot_count )

inlinestatic

Definition at line 772 of file feedback-vector.h.

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◆ slot_count()

int32_t v8::internal::FeedbackMetadata::slot_count ( AcquireLoadTag ) const

inline

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◆ SpecDiffersFrom()

bool v8::internal::FeedbackMetadata::SpecDiffersFrom ( const FeedbackVectorSpec * other_spec ) const

Definition at line 128 of file feedback-vector.cc.

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◆ word_count() [1/2]

int v8::internal::FeedbackMetadata::word_count ( ) const

inlineprivate

Definition at line 88 of file feedback-vector-inl.h.

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◆ word_count() [2/2]

static int v8::internal::FeedbackMetadata::word_count ( int slot_count )

inlinestaticprivate

Definition at line 797 of file feedback-vector.h.

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Friends And Related Symbol Documentation

◆ AccessorAssembler

friend class AccessorAssembler

friend

Definition at line 789 of file feedback-vector.h.

Member Data Documentation

◆ kFeedbackSlotKindBits

const int v8::internal::FeedbackMetadata::kFeedbackSlotKindBits = 5

staticprivate

Definition at line 802 of file feedback-vector.h.

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

src/objects/feedback-vector.h
src/objects/feedback-vector-inl.h
src/objects/feedback-vector.cc

Classes

Public Member Functions

Static Public Member Functions

Private Types

Private Member Functions

Static Private Member Functions

Static Private Attributes

Friends

Additional Inherited Members

Detailed Description

Member Typedef Documentation

◆ VectorICComputer

Member Function Documentation

◆ AllocatedSize()

◆ create_closure_slot_count()

◆ get()

◆ GetCreateClosureParameterCount()

◆ GetKind()

◆ GetSlotSize()

◆ is_empty()

◆ Kind2String()

◆ New() [1/2]

◆ New() [2/2]

◆ OBJECT_CONSTRUCTORS()

◆ set()

◆ SetCreateClosureParameterCount()

◆ SetKind()

◆ SizeFor()

◆ slot_count()

◆ SpecDiffersFrom()

◆ word_count() [1/2]

◆ word_count() [2/2]

Friends And Related Symbol Documentation

◆ AccessorAssembler

Member Data Documentation

◆ kFeedbackSlotKindBits