v8::internal::maglev::ValueNode Class Reference

#include <maglev-ir.h>

Inheritance diagram for v8::internal::maglev::ValueNode:

Collaboration diagram for v8::internal::maglev::ValueNode:

Classes
struct	LiveRange

Public Member Functions
ValueLocation &	result ()
const ValueLocation &	result () const
int	use_count () const
bool	is_used () const
bool	unused_inputs_were_visited () const
void	add_use ()
void	remove_use ()
void	mark_unused_inputs_visited ()
void	SetHint (compiler::InstructionOperand hint)
void	ClearHint ()
bool	has_hint ()
template<typename RegisterT >
RegisterT	GetRegisterHint ()
const compiler::InstructionOperand &	hint () const
bool	is_loadable () const
bool	is_spilled () const
void	SetNoSpill ()
void	SetConstantLocation ()
void	LoadToRegister (MaglevAssembler *, Register)
void	LoadToRegister (MaglevAssembler *, DoubleRegister)
void	DoLoadToRegister (MaglevAssembler *, Register)
void	DoLoadToRegister (MaglevAssembler *, DoubleRegister)
DirectHandle< Object >	Reify (LocalIsolate *isolate) const
void	Spill (compiler::AllocatedOperand operand)
compiler::AllocatedOperand	spill_slot () const
compiler::InstructionOperand	loadable_slot () const
void	record_next_use (NodeIdT id, InputLocation *input_location)
bool	has_valid_live_range () const
LiveRange	live_range () const
NodeIdT	current_next_use () const
void	advance_next_use (NodeIdT use)
bool	has_no_more_uses () const
constexpr bool	use_double_register () const
constexpr bool	is_tagged () const
constexpr bool	decompresses_tagged_result () const
constexpr ValueRepresentation	value_representation () const
constexpr MachineRepresentation	GetMachineRepresentation () const
void	InitializeRegisterData ()
void	AddRegister (Register reg)
void	AddRegister (DoubleRegister reg)
void	RemoveRegister (Register reg)
void	RemoveRegister (DoubleRegister reg)
template<typename T >
RegListBase< T >	ClearRegisters ()
int	num_registers () const
bool	has_register () const
bool	is_in_register (Register reg) const
bool	is_in_register (DoubleRegister reg) const
template<typename T >
RegListBase< T >	result_registers ()
compiler::InstructionOperand	allocation () const
template<>
RegList	ClearRegisters ()
template<>
DoubleRegList	ClearRegisters ()
Public Member Functions inherited from v8::internal::maglev::Node
ValueLocation &	result ()
Public Member Functions inherited from v8::internal::maglev::NodeBase
constexpr Opcode	opcode () const
constexpr OpProperties	properties () const
void	set_properties (OpProperties properties)
void	set_input (int index, ValueNode *node)
template<class T >
constexpr bool	Is () const
template<class T >
constexpr T *	Cast ()
template<class T >
constexpr const T *	Cast () const
template<class T >
constexpr T *	TryCast ()
template<class T >
constexpr const T *	TryCast () const
constexpr bool	has_inputs () const
constexpr int	input_count () const
constexpr Input &	input (int index)
constexpr const Input &	input (int index) const
std::optional< int32_t >	TryGetInt32ConstantInput (int index)
constexpr auto	begin ()
constexpr auto	end ()
constexpr bool	has_id () const
constexpr NodeIdT	id () const
void	set_id (NodeIdT id)
template<typename RegisterT >
uint8_t	num_temporaries_needed () const
template<typename RegisterT >
RegListBase< RegisterT > &	temporaries ()
RegList &	general_temporaries ()
DoubleRegList &	double_temporaries ()
template<typename RegisterT >
void	assign_temporaries (RegListBase< RegisterT > list)
template<typename Function >
void	ForAllInputsInRegallocAssignmentOrder (Function &&f)
void	Print (std::ostream &os, MaglevGraphLabeller *, bool skip_targets=false) const
void	Print () const
EagerDeoptInfo *	eager_deopt_info ()
LazyDeoptInfo *	lazy_deopt_info ()
const RegisterSnapshot &	register_snapshot () const
ExceptionHandlerInfo *	exception_handler_info ()
void	set_register_snapshot (RegisterSnapshot snapshot)
void	change_input (int index, ValueNode *node)
void	change_representation (ValueRepresentation new_repr)
void	set_opcode (Opcode new_opcode)
void	CopyEagerDeoptInfoOf (NodeBase *other, Zone *zone)
void	SetEagerDeoptInfo (Zone *zone, DeoptFrame deopt_frame, compiler::FeedbackSource feedback_to_update=compiler::FeedbackSource())
template<typename NodeT >
void	OverwriteWith ()
void	OverwriteWith (Opcode new_opcode, std::optional< OpProperties > maybe_new_properties=std::nullopt)
void	OverwriteWithIdentityTo (ValueNode *node)
auto	options () const
void	ClearUnstableNodeAspects (KnownNodeAspects &)
void	ClearElementsProperties (KnownNodeAspects &)
void	set_owner (BasicBlock *block)
BasicBlock *	owner () const
void	InitTemporaries ()
template<>
constexpr bool	Is () const
template<>
constexpr bool	Is () const
template<>
constexpr bool	Is () const
template<>
constexpr bool	Is () const
template<>
constexpr bool	Is () const
template<>
constexpr bool	Is () const
Public Member Functions inherited from v8::internal::ZoneObject
void *	operator new (size_t, Zone *)=delete
void *	operator new (size_t size, void *ptr)
void	operator delete (void *, size_t)
void	operator delete (void *pointer, Zone *zone)=delete

Protected Types
using	ReservedField = void
Protected Types inherited from v8::internal::maglev::NodeBase
using	ReservedField = InputCountField::Next<bool, 1>
template<class T , int size>
using	NextBitField = ReservedField::Next<T, size>

Protected Member Functions
	ValueNode (uint64_t bitfield)
int	FirstRegisterCode () const
NodeIdT	start_id () const
Protected Member Functions inherited from v8::internal::maglev::Node
	NodeBase (uint64_t bitfield)
Protected Member Functions inherited from v8::internal::maglev::NodeBase
	NodeBase (uint64_t bitfield)
constexpr uint64_t	bitfield () const
void	set_bitfield (uint64_t new_bitfield)
constexpr Input *	input_base ()
constexpr const Input *	input_base () const
Input *	last_input ()
const Input *	last_input () const
Address	last_input_address () const
void	initialize_input_null (int index)
void	reduce_input_count (int num=1)
void	set_temporaries_needed (uint8_t value)
void	set_double_temporaries_needed (uint8_t value)
void	RequireSpecificTemporary (Register reg)
void	RequireSpecificDoubleTemporary (DoubleRegister reg)

Protected Attributes
NodeIdT	end_id_ = kInvalidNodeId
NodeIdT	next_use_ = kInvalidNodeId
ValueLocation	result_
union {
RegList   registers_with_result_
DoubleRegList   double_registers_with_result_
};
union {
NodeIdT *   last_uses_next_use_id_
compiler::InstructionOperand   spill_
};
compiler::InstructionOperand	hint_
int	use_count_

Private Types
using	TaggedResultNeedsDecompressField = NodeBase::ReservedField

Additional Inherited Members
Public Types inherited from v8::internal::maglev::NodeBase
enum class	InputAllocationPolicy { kFixedRegister , kArbitraryRegister , kAny }
Static Public Member Functions inherited from v8::internal::maglev::Node
static constexpr bool	participate_in_cse (Opcode op)
static constexpr bool	needs_epoch_check (Opcode op)
Static Public Member Functions inherited from v8::internal::maglev::NodeBase
template<class Derived , typename... Args>
static Derived *	New (Zone *zone, std::initializer_list< ValueNode * > inputs, Args &&... args)
template<class Derived , typename... Args>
static Derived *	New (Zone *zone, size_t input_count, Args &&... args)
Static Public Attributes inherited from v8::internal::maglev::NodeBase
template<class T >
static constexpr Opcode	opcode_of = detail::opcode_of_helper<T>::value
static constexpr OpProperties	kProperties
Static Protected Attributes inherited from v8::internal::maglev::NodeBase
static constexpr int	kMaxInputs = InputCountField::kMax

Detailed Description

Definition at line 2418 of file maglev-ir.h.

Member Typedef Documentation

ReservedField

using v8::internal::maglev::ValueNode::ReservedField = void

protected

Definition at line 2423 of file maglev-ir.h.

TaggedResultNeedsDecompressField

using v8::internal::maglev::ValueNode::TaggedResultNeedsDecompressField = NodeBase::ReservedField

private

Definition at line 2420 of file maglev-ir.h.

Constructor & Destructor Documentation

ValueNode()

v8::internal::maglev::ValueNode::ValueNode ( uint64_t bitfield )

inlineexplicitprotected

Definition at line 2669 of file maglev-ir.h.

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Member Function Documentation

add_use()

void v8::internal::maglev::ValueNode::add_use ( )

inline

Definition at line 2436 of file maglev-ir.h.

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AddRegister() [1/2]

void v8::internal::maglev::ValueNode::AddRegister ( DoubleRegister reg )

inline

Definition at line 2609 of file maglev-ir.h.

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AddRegister() [2/2]

void v8::internal::maglev::ValueNode::AddRegister ( Register reg )

inline

Definition at line 2605 of file maglev-ir.h.

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advance_next_use()

void v8::internal::maglev::ValueNode::advance_next_use ( NodeIdT use )

inline

Definition at line 2538 of file maglev-ir.h.

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allocation()

compiler::InstructionOperand v8::internal::maglev::ValueNode::allocation ( ) const

inline

Definition at line 2658 of file maglev-ir.h.

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ClearHint()

void v8::internal::maglev::ValueNode::ClearHint ( )

inline

Definition at line 2455 of file maglev-ir.h.

ClearRegisters() [1/3]

template<typename T >

RegListBase< T > v8::internal::maglev::ValueNode::ClearRegisters ( )

inline

ClearRegisters() [2/3]

template<>

RegList v8::internal::maglev::ValueNode::ClearRegisters ( )

inline

Definition at line 2738 of file maglev-ir.h.

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ClearRegisters() [3/3]

template<>

DoubleRegList v8::internal::maglev::ValueNode::ClearRegisters ( )

inline

Definition at line 2744 of file maglev-ir.h.

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current_next_use()

NodeIdT v8::internal::maglev::ValueNode::current_next_use ( ) const

inline

Definition at line 2534 of file maglev-ir.h.

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decompresses_tagged_result()

bool v8::internal::maglev::ValueNode::decompresses_tagged_result ( ) const

inlineconstexpr

Definition at line 2574 of file maglev-ir.h.

DoLoadToRegister() [1/2]

void v8::internal::maglev::ValueNode::DoLoadToRegister	(	MaglevAssembler *	,
		DoubleRegister	)

DoLoadToRegister() [2/2]

void v8::internal::maglev::ValueNode::DoLoadToRegister	(	MaglevAssembler *	,
		Register	)

FirstRegisterCode()

int v8::internal::maglev::ValueNode::FirstRegisterCode ( ) const

inlineprotected

Definition at line 2682 of file maglev-ir.h.

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GetMachineRepresentation()

MachineRepresentation v8::internal::maglev::ValueNode::GetMachineRepresentation ( ) const

inlineconstexpr

Definition at line 2581 of file maglev-ir.h.

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GetRegisterHint()

template<typename RegisterT >

RegisterT v8::internal::maglev::ValueNode::GetRegisterHint ( )

inline

Definition at line 2460 of file maglev-ir.h.

has_hint()

bool v8::internal::maglev::ValueNode::has_hint ( )

inline

Definition at line 2457 of file maglev-ir.h.

has_no_more_uses()

bool v8::internal::maglev::ValueNode::has_no_more_uses ( ) const

inline

Definition at line 2540 of file maglev-ir.h.

has_register()

bool v8::internal::maglev::ValueNode::has_register ( ) const

inline

Definition at line 2632 of file maglev-ir.h.

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has_valid_live_range()

bool v8::internal::maglev::ValueNode::has_valid_live_range ( ) const

inline

Definition at line 2532 of file maglev-ir.h.

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hint()

const compiler::InstructionOperand & v8::internal::maglev::ValueNode::hint ( ) const

inline

Definition at line 2466 of file maglev-ir.h.

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InitializeRegisterData()

void v8::internal::maglev::ValueNode::InitializeRegisterData ( )

inline

Definition at line 2597 of file maglev-ir.h.

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is_in_register() [1/2]

bool v8::internal::maglev::ValueNode::is_in_register ( DoubleRegister reg ) const

inline

Definition at line 2642 of file maglev-ir.h.

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is_in_register() [2/2]

bool v8::internal::maglev::ValueNode::is_in_register ( Register reg ) const

inline

Definition at line 2638 of file maglev-ir.h.

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is_loadable()

bool v8::internal::maglev::ValueNode::is_loadable ( ) const

inline

Definition at line 2471 of file maglev-ir.h.

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is_spilled()

bool v8::internal::maglev::ValueNode::is_spilled ( ) const

inline

Definition at line 2476 of file maglev-ir.h.

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is_tagged()

bool v8::internal::maglev::ValueNode::is_tagged ( ) const

inlineconstexpr

Definition at line 2546 of file maglev-ir.h.

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is_used()

bool v8::internal::maglev::ValueNode::is_used ( ) const

inline

Definition at line 2434 of file maglev-ir.h.

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live_range()

LiveRange v8::internal::maglev::ValueNode::live_range ( ) const

inline

Definition at line 2533 of file maglev-ir.h.

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loadable_slot()

compiler::InstructionOperand v8::internal::maglev::ValueNode::loadable_slot ( ) const

inline

Definition at line 2510 of file maglev-ir.h.

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LoadToRegister() [1/2]

void v8::internal::maglev::ValueNode::LoadToRegister	(	MaglevAssembler *	,
		DoubleRegister	)

LoadToRegister() [2/2]

void v8::internal::maglev::ValueNode::LoadToRegister	(	MaglevAssembler *	,
		Register	)

mark_unused_inputs_visited()

void v8::internal::maglev::ValueNode::mark_unused_inputs_visited ( )

inline

Definition at line 2448 of file maglev-ir.h.

num_registers()

int v8::internal::maglev::ValueNode::num_registers ( ) const

inline

Definition at line 2626 of file maglev-ir.h.

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record_next_use()

void v8::internal::maglev::ValueNode::record_next_use ( NodeIdT id, InputLocation * input_location )

inline

Definition at line 2516 of file maglev-ir.h.

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Reify()

DirectHandle< Object > v8::internal::maglev::ValueNode::Reify

(

LocalIsolate *

isolate

)

const

Definition at line 860 of file maglev-ir.cc.

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remove_use()

void v8::internal::maglev::ValueNode::remove_use ( )

inline

Definition at line 2441 of file maglev-ir.h.

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RemoveRegister() [1/2]

void v8::internal::maglev::ValueNode::RemoveRegister ( DoubleRegister reg )

inline

Definition at line 2618 of file maglev-ir.h.

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RemoveRegister() [2/2]

void v8::internal::maglev::ValueNode::RemoveRegister ( Register reg )

inline

Definition at line 2614 of file maglev-ir.h.

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result() [1/2]

ValueLocation & v8::internal::maglev::ValueNode::result ( )

inline

Definition at line 2426 of file maglev-ir.h.

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result() [2/2]

const ValueLocation & v8::internal::maglev::ValueNode::result ( ) const

inline

Definition at line 2427 of file maglev-ir.h.

result_registers()

template<typename T >

RegListBase< T > v8::internal::maglev::ValueNode::result_registers ( )

inline

Definition at line 2648 of file maglev-ir.h.

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SetConstantLocation()

void v8::internal::maglev::ValueNode::SetConstantLocation

(

)

Definition at line 492 of file maglev-ir.cc.

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SetHint()

void v8::internal::maglev::ValueNode::SetHint

(

compiler::InstructionOperand

hint

)

Definition at line 466 of file maglev-ir.cc.

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SetNoSpill()

void v8::internal::maglev::ValueNode::SetNoSpill

(

)

Definition at line 484 of file maglev-ir.cc.

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Spill()

void v8::internal::maglev::ValueNode::Spill ( compiler::AllocatedOperand operand )

inline

Definition at line 2491 of file maglev-ir.h.

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spill_slot()

compiler::AllocatedOperand v8::internal::maglev::ValueNode::spill_slot ( ) const

inline

Definition at line 2505 of file maglev-ir.h.

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start_id()

NodeIdT v8::internal::maglev::ValueNode::start_id ( ) const

inlineprotected

Definition at line 2690 of file maglev-ir.h.

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unused_inputs_were_visited()

bool v8::internal::maglev::ValueNode::unused_inputs_were_visited ( ) const

inline

Definition at line 2435 of file maglev-ir.h.

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use_count()

int v8::internal::maglev::ValueNode::use_count ( ) const

inline

Definition at line 2429 of file maglev-ir.h.

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use_double_register()

bool v8::internal::maglev::ValueNode::use_double_register ( ) const

inlineconstexpr

Definition at line 2542 of file maglev-ir.h.

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value_representation()

ValueRepresentation v8::internal::maglev::ValueNode::value_representation ( ) const

inlineconstexpr

Definition at line 2577 of file maglev-ir.h.

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Member Data Documentation

[union]

union { ... } v8::internal::maglev::ValueNode

[union]

union { ... } v8::internal::maglev::ValueNode

double_registers_with_result_

DoubleRegList v8::internal::maglev::ValueNode::double_registers_with_result_

Definition at line 2697 of file maglev-ir.h.

end_id_

NodeIdT v8::internal::maglev::ValueNode::end_id_ = kInvalidNodeId

protected

Definition at line 2692 of file maglev-ir.h.

hint_

compiler::InstructionOperand v8::internal::maglev::ValueNode::hint_

protected

Definition at line 2706 of file maglev-ir.h.

last_uses_next_use_id_

NodeIdT* v8::internal::maglev::ValueNode::last_uses_next_use_id_

Definition at line 2703 of file maglev-ir.h.

next_use_

NodeIdT v8::internal::maglev::ValueNode::next_use_ = kInvalidNodeId

protected

Definition at line 2693 of file maglev-ir.h.

registers_with_result_

RegList v8::internal::maglev::ValueNode::registers_with_result_

Definition at line 2696 of file maglev-ir.h.

result_

ValueLocation v8::internal::maglev::ValueNode::result_

protected

Definition at line 2694 of file maglev-ir.h.

spill_

compiler::InstructionOperand v8::internal::maglev::ValueNode::spill_

Definition at line 2704 of file maglev-ir.h.

use_count_

int v8::internal::maglev::ValueNode::use_count_

protected

Definition at line 2708 of file maglev-ir.h.

---

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

• src/maglev/maglev-ir.h
• src/maglev/maglev-ir.cc