#include <il.h>

Inheritance diagram for dart::EqualityCompareInstr:

Public Member Functions
	EqualityCompareInstr (const InstructionSource &source, Token::Kind kind, Value left, Value right, intptr_t cid, intptr_t deopt_id, bool null_aware=false, SpeculativeMode speculative_mode=kGuardInputs)

virtual ComparisonInstr *	CopyWithNewOperands (Value left, Value right)

virtual CompileType	ComputeType () const

virtual bool	ComputeCanDeoptimize () const

bool	is_null_aware () const

void	set_null_aware (bool value)

virtual Representation	RequiredInputRepresentation (intptr_t idx) const

virtual SpeculativeMode	SpeculativeModeOfInput (intptr_t index) const

virtual bool	AttributesEqual (const Instruction &other) const

virtual Definition *	Canonicalize (FlowGraph *flow_graph)

Public Member Functions inherited from dart::TemplateComparison< 2, NoThrow, Pure >
	TemplateComparison (const InstructionSource &source, Token::Kind kind, intptr_t deopt_id=DeoptId::kNone)

virtual intptr_t	InputCount () const

virtual Value *	InputAt (intptr_t i) const

virtual bool	MayThrow () const

Public Member Functions inherited from dart::PureDefinition
	PureDefinition (intptr_t deopt_id)

	PureDefinition (const InstructionSource &source, intptr_t deopt_id)

virtual bool	AllowsCSE () const

virtual bool	HasUnknownSideEffects () const

Public Member Functions inherited from dart::Definition
	Definition (intptr_t deopt_id=DeoptId::kNone)

	Definition (const InstructionSource &source, intptr_t deopt_id=DeoptId::kNone)

virtual intptr_t	CallCount () const

intptr_t	temp_index () const

void	set_temp_index (intptr_t index)

void	ClearTempIndex ()

bool	HasTemp () const

intptr_t	ssa_temp_index () const

void	set_ssa_temp_index (intptr_t index)

bool	HasSSATemp () const

void	ClearSSATempIndex ()

intptr_t	vreg (intptr_t index) const

intptr_t	location_count () const

bool	HasPairRepresentation () const

CompileType *	Type ()

bool	HasType () const

bool	IsInt64Definition ()

bool	IsInt32Definition ()

virtual CompileType	ComputeType () const

virtual bool	RecomputeType ()

PRINT_OPERANDS_TO_SUPPORT PRINT_TO_SUPPORT bool	UpdateType (CompileType new_type)

bool	HasUses () const

bool	HasOnlyUse (Value *use) const

bool	HasOnlyInputUse (Value *use) const

Value *	input_use_list () const

void	set_input_use_list (Value *head)

Value *	env_use_list () const

void	set_env_use_list (Value *head)

ValueListIterable	input_uses () const

void	AddInputUse (Value *value)

void	AddEnvUse (Value *value)

virtual bool	MayCreateUnsafeUntaggedPointer () const

virtual bool	CanReplaceWithConstant () const

virtual bool	CanEliminate (const BlockEntryInstr *block) const

void	ReplaceUsesWith (Definition *other)

void	ReplaceWithResult (Instruction replacement, Definition replacement_for_uses, ForwardInstructionIterator *iterator)

void	ReplaceWith (Definition other, ForwardInstructionIterator iterator)

Object &	constant_value ()

virtual void	InferRange (RangeAnalysis analysis, Range range)

Range *	range () const

void	set_range (const Range &)

virtual Definition *	Canonicalize (FlowGraph *flow_graph)

Definition *	Replacement ()

void	SetReplacement (Definition *other)

virtual AliasIdentity	Identity () const

virtual void	SetIdentity (AliasIdentity identity)

Definition *	OriginalDefinition ()

virtual Value *	RedefinedValue () const

Definition *	OriginalDefinitionIgnoreBoxingAndConstraints ()

virtual Definition *	AsDefinition ()

virtual const Definition *	AsDefinition () const

Public Member Functions inherited from dart::Instruction
	Instruction (const InstructionSource &source, intptr_t deopt_id=DeoptId::kNone)

	Instruction (intptr_t deopt_id=DeoptId::kNone)

virtual	~Instruction ()

virtual Tag	tag () const =0

virtual intptr_t	statistics_tag () const

intptr_t	deopt_id () const

virtual TokenPosition	token_pos () const

InstructionSource	source () const

virtual intptr_t	InputCount () const =0

virtual Value *	InputAt (intptr_t i) const =0

void	SetInputAt (intptr_t i, Value *value)

InputsIterable	inputs ()

void	UnuseAllInputs ()

virtual intptr_t	ArgumentCount () const

Value *	ArgumentValueAt (intptr_t index) const

Definition *	ArgumentAt (intptr_t index) const

virtual void	SetMoveArguments (MoveArgumentsArray *move_arguments)

virtual MoveArgumentsArray *	GetMoveArguments () const

virtual void	ReplaceInputsWithMoveArguments (MoveArgumentsArray *move_arguments)

bool	HasMoveArguments () const

void	RepairArgumentUsesInEnvironment () const

virtual bool	ComputeCanDeoptimize () const =0

virtual bool	ComputeCanDeoptimizeAfterCall () const

bool	CanDeoptimize () const

virtual void	Accept (InstructionVisitor *visitor)=0

Instruction *	previous () const

void	set_previous (Instruction *instr)

Instruction *	next () const

void	set_next (Instruction *instr)

void	LinkTo (Instruction *next)

Instruction *	RemoveFromGraph (bool return_previous=true)

virtual intptr_t	SuccessorCount () const

virtual BlockEntryInstr *	SuccessorAt (intptr_t index) const

SuccessorsIterable	successors () const

void	Goto (JoinEntryInstr *entry)

virtual const char *	DebugName () const =0

void	CheckField (const Field &field) const

const char *	ToCString () const

	DECLARE_INSTRUCTION_TYPE_CHECK (BlockEntryWithInitialDefs, BlockEntryWithInitialDefs) template< typename T > T *Cast()

template<typename T >
const T *	Cast () const

LocationSummary *	locs ()

bool	HasLocs () const

virtual LocationSummary *	MakeLocationSummary (Zone *zone, bool is_optimizing) const =0

void	InitializeLocationSummary (Zone *zone, bool optimizing)

virtual void	EmitNativeCode (FlowGraphCompiler *compiler)

Environment *	env () const

void	SetEnvironment (Environment *deopt_env)

void	RemoveEnvironment ()

void	ReplaceInEnvironment (Definition current, Definition replacement)

virtual intptr_t	NumberOfInputsConsumedBeforeCall () const

intptr_t	GetPassSpecificId (CompilerPass::Id pass) const

void	SetPassSpecificId (CompilerPass::Id pass, intptr_t id)

bool	HasPassSpecificId (CompilerPass::Id pass) const

bool	HasUnmatchedInputRepresentations () const

virtual Representation	RequiredInputRepresentation (intptr_t idx) const

SpeculativeMode	SpeculativeModeOfInputs () const

virtual SpeculativeMode	SpeculativeModeOfInput (intptr_t index) const

virtual Representation	representation () const

bool	WasEliminated () const

virtual intptr_t	DeoptimizationTarget () const

virtual Instruction *	Canonicalize (FlowGraph *flow_graph)

void	InsertBefore (Instruction *next)

void	InsertAfter (Instruction *prev)

Instruction *	AppendInstruction (Instruction *tail)

virtual bool	AllowsCSE () const

virtual bool	HasUnknownSideEffects () const =0

virtual bool	CanCallDart () const

virtual bool	CanTriggerGC () const

virtual BlockEntryInstr *	GetBlock ()

virtual intptr_t	inlining_id () const

virtual void	set_inlining_id (intptr_t value)

virtual bool	has_inlining_id () const

virtual uword	Hash () const

bool	Equals (const Instruction &other) const

virtual bool	AttributesEqual (const Instruction &other) const

void	InheritDeoptTarget (Zone zone, Instruction other)

bool	NeedsEnvironment () const

virtual bool	CanBecomeDeoptimizationTarget () const

void	InheritDeoptTargetAfter (FlowGraph flow_graph, Definition call, Definition *result)

virtual bool	MayThrow () const =0

virtual bool	MayHaveVisibleEffect () const

virtual bool	CanEliminate (const BlockEntryInstr *block) const

bool	CanEliminate ()

bool	IsDominatedBy (Instruction *dom)

void	ClearEnv ()

void	Unsupported (FlowGraphCompiler *compiler)

virtual bool	UseSharedSlowPathStub (bool is_optimizing) const

Location::Kind	RegisterKindForResult () const

Public Member Functions inherited from dart::ZoneAllocated
	ZoneAllocated ()

void *	operator new (size_t size)

void *	operator new (size_t size, Zone *zone)

void	operator delete (void *pointer)

Additional Inherited Members
Public Types inherited from dart::TemplateComparison< 2, NoThrow, Pure >
using	BaseClass = typename Pure< ComparisonInstr, PureComparison >::Base

Public Types inherited from dart::Instruction
enum	Tag { FOR_EACH_INSTRUCTION =(DECLARE_TAG) kNumInstructions }

enum	SpeculativeMode { kGuardInputs , kNotSpeculative }

using	InputsIterable = InstructionIndexedPropertyIterable< InputsTrait >

using	SuccessorsIterable = InstructionIndexedPropertyIterable< SuccessorsTrait >

Static Public Member Functions inherited from dart::Definition
static bool	IsArrayLength (Definition *def)

Static Public Member Functions inherited from dart::Instruction
static const ICData *	GetICData (const ZoneGrowableArray< const ICData * > &ic_data_array, intptr_t deopt_id, bool is_static_call)

static LocationSummary *	MakeCallSummary (Zone zone, const Instruction instr, LocationSummary *locs=nullptr)

static bool	SlowPathSharingSupported (bool is_optimizing)

Static Public Attributes inherited from dart::Definition
static constexpr intptr_t	kReplacementMarker = -2

Static Public Attributes inherited from dart::Instruction
static const intptr_t	kInstructionAttrs [kNumInstructions]

Protected Member Functions inherited from dart::Definition
void	set_type (CompileType *type)

Protected Member Functions inherited from dart::Instruction
intptr_t	GetDeoptId () const

virtual void	CopyDeoptIdFrom (const Instruction &instr)

void	WriteExtraWithoutInputs (FlowGraphSerializer *s)

void	ReadExtraWithoutInputs (FlowGraphDeserializer *d)

Protected Attributes inherited from dart::TemplateComparison< 2, NoThrow, Pure >
EmbeddedArray< Value *, N >	inputs_

Protected Attributes inherited from dart::Definition
Range *	range_ = nullptr

Detailed Description

Definition at line 5314 of file il.h.

Constructor & Destructor Documentation

◆ EqualityCompareInstr()

dart::EqualityCompareInstr::EqualityCompareInstr	(	const InstructionSource &	source,
		Token::Kind	kind,
		Value *	left,
		Value *	right,
		intptr_t	cid,
		intptr_t	deopt_id,
		bool	null_aware = `false`,
		SpeculativeMode	speculative_mode = `kGuardInputs`
	)

inline

Definition at line 5316 of file il.h.

      : TemplateComparison(source, kind, deopt_id),
        null_aware_(null_aware),
        speculative_mode_(speculative_mode) {
    ASSERT(Token::IsEqualityOperator(kind));
    SetInputAt(0, left);
    SetInputAt(1, right);
    set_operation_cid(cid);
  }

Member Function Documentation

◆ AttributesEqual()

virtual bool dart::EqualityCompareInstr::AttributesEqual ( const Instruction & other ) const

inlinevirtual

Reimplemented from dart::Instruction.

Definition at line 5357 of file il.h.

                                                               {
    return ComparisonInstr::AttributesEqual(other) &&
           (null_aware_ == other.AsEqualityCompare()->null_aware_) &&
           (speculative_mode_ == other.AsEqualityCompare()->speculative_mode_);
  }

◆ Canonicalize()

Definition * dart::EqualityCompareInstr::Canonicalize ( FlowGraph * flow_graph )

virtual

Reimplemented from dart::Definition.

Definition at line 3752 of file il.cc.

                                                                    {
  if (is_null_aware()) {
    ASSERT(operation_cid() == kMintCid);
    // Select more efficient instructions based on operand types.
    CompileType* left_type = left()->Type();
    CompileType* right_type = right()->Type();
    if (left_type->IsNull() || left_type->IsNullableSmi() ||
        right_type->IsNull() || right_type->IsNullableSmi()) {
      auto replacement = new StrictCompareInstr(
          source(),
          (kind() == Token::kEQ) ? Token::kEQ_STRICT : Token::kNE_STRICT,
          left()->CopyWithType(), right()->CopyWithType(),
          /*needs_number_check=*/false, DeoptId::kNone);
      flow_graph->InsertBefore(this, replacement, env(), FlowGraph::kValue);
      return replacement;
    } else {
      // Null-aware EqualityCompare takes boxed inputs, so make sure
      // unmatched representations are still allowed when converting
      // EqualityCompare to the unboxed instruction.
      if (!left_type->is_nullable() && !right_type->is_nullable() &&
          flow_graph->unmatched_representations_allowed()) {
        set_null_aware(false);
      }
    }
  } else {
    if ((operation_cid() == kMintCid) && IsSingleUseUnboxOrConstant(left()) &&
        IsSingleUseUnboxOrConstant(right()) &&
        (left()->Type()->IsNullableSmi() || right()->Type()->IsNullableSmi()) &&
        flow_graph->unmatched_representations_allowed()) {
      auto replacement = new StrictCompareInstr(
          source(),
          (kind() == Token::kEQ) ? Token::kEQ_STRICT : Token::kNE_STRICT,
          left()->CopyWithType(), right()->CopyWithType(),
          /*needs_number_check=*/false, DeoptId::kNone);
      flow_graph->InsertBefore(this, replacement, env(), FlowGraph::kValue);
      return replacement;
    }
  }
  return this;
}

◆ ComputeCanDeoptimize()

virtual bool dart::EqualityCompareInstr::ComputeCanDeoptimize ( ) const

inlinevirtual

Implements dart::Instruction.

Definition at line 5339 of file il.h.

5339{ return false; }

◆ ComputeType()

CompileType dart::EqualityCompareInstr::ComputeType ( ) const

virtual

Reimplemented from dart::Definition.

Definition at line 1424 of file type_propagator.cc.

                                                    {
  // Used for numeric comparisons only.
  return CompileType::Bool();
}

◆ CopyWithNewOperands()

ComparisonInstr * dart::EqualityCompareInstr::CopyWithNewOperands	(	Value *	left,
		Value *	right
	)

virtual

Definition at line 6550 of file il.cc.

                                                                             {
  return new EqualityCompareInstr(source(), kind(), new_left, new_right,
                                  operation_cid(), deopt_id(), is_null_aware(),
                                  speculative_mode_);
}

◆ is_null_aware()

bool dart::EqualityCompareInstr::is_null_aware ( ) const

inline

Definition at line 5341 of file il.h.

5341{ return null_aware_; }

◆ RequiredInputRepresentation()

virtual Representation dart::EqualityCompareInstr::RequiredInputRepresentation ( intptr_t idx ) const

inlinevirtual

Reimplemented from dart::Instruction.

Definition at line 5344 of file il.h.

                                                                         {
    ASSERT((idx == 0) || (idx == 1));
    if (is_null_aware()) return kTagged;
    if (operation_cid() == kDoubleCid) return kUnboxedDouble;
    if (operation_cid() == kMintCid) return kUnboxedInt64;
    if (operation_cid() == kIntegerCid) return kUnboxedUword;
    return kTagged;
  }

◆ set_null_aware()

void dart::EqualityCompareInstr::set_null_aware ( bool value )

inline

Definition at line 5342 of file il.h.

5342{ null_aware_ = value; }

value

uint8_t value

Definition: fl_standard_message_codec.cc:36

◆ SpeculativeModeOfInput()

virtual SpeculativeMode dart::EqualityCompareInstr::SpeculativeModeOfInput ( intptr_t index ) const

inlinevirtual

Reimplemented from dart::Instruction.

Definition at line 5353 of file il.h.

                                                                       {
    return speculative_mode_;
  }

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

third_party/dart-lang/sdk/runtime/vm/compiler/backend/il.h
third_party/dart-lang/sdk/runtime/vm/compiler/backend/il.cc
third_party/dart-lang/sdk/runtime/vm/compiler/backend/type_propagator.cc

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ EqualityCompareInstr()

Member Function Documentation

◆ AttributesEqual()

◆ Canonicalize()

◆ ComputeCanDeoptimize()

◆ ComputeType()

◆ CopyWithNewOperands()

◆ is_null_aware()

◆ RequiredInputRepresentation()

◆ set_null_aware()

◆ SpeculativeModeOfInput()