#include <il.h>

Inheritance diagram for dart::IfThenElseInstr:

Public Member Functions
	IfThenElseInstr (ComparisonInstr comparison, Value if_true, Value *if_false, intptr_t deopt_id)

intptr_t	InputCount () const

Value *	InputAt (intptr_t i) const

virtual bool	ComputeCanDeoptimize () const

virtual bool	CanBecomeDeoptimizationTarget () const

virtual intptr_t	DeoptimizationTarget () const

virtual Representation	RequiredInputRepresentation (intptr_t i) const

virtual CompileType	ComputeType () const

virtual void	InferRange (RangeAnalysis analysis, Range range)

ComparisonInstr *	comparison () const

intptr_t	if_true () const

intptr_t	if_false () const

virtual bool	AllowsCSE () const

virtual bool	HasUnknownSideEffects () const

virtual bool	CanCallDart () const

virtual bool	AttributesEqual (const Instruction &other) const

virtual bool	MayThrow () const

virtual void	CopyDeoptIdFrom (const Instruction &instr)

	DECLARE_INSTRUCTION_SERIALIZABLE_FIELDS (IfThenElseInstr, Definition, FIELD_LIST) DECLARE_EXTRA_SERIALIZATION private

	DISALLOW_COPY_AND_ASSIGN (IfThenElseInstr)

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 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 ()

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

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	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

SpeculativeMode	SpeculativeModeOfInputs () const

virtual SpeculativeMode	SpeculativeModeOfInput (intptr_t index) const

virtual Representation	representation () const

bool	WasEliminated () const

void	InsertBefore (Instruction *next)

void	InsertAfter (Instruction *prev)

Instruction *	AppendInstruction (Instruction *tail)

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

void	InheritDeoptTarget (Zone zone, Instruction other)

bool	NeedsEnvironment () const

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

virtual bool	MayHaveVisibleEffect () 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)

Static Public Member Functions
static bool	Supports (ComparisonInstr comparison, Value v1, Value *v2)

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)

Additional Inherited Members
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 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

void	WriteExtraWithoutInputs (FlowGraphSerializer *s)

void	ReadExtraWithoutInputs (FlowGraphDeserializer *d)

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

Detailed Description

Definition at line 5387 of file il.h.

Constructor & Destructor Documentation

◆ IfThenElseInstr()

dart::IfThenElseInstr::IfThenElseInstr	(	ComparisonInstr *	comparison,
		Value *	if_true,
		Value *	if_false,
		intptr_t	deopt_id
	)

inline

Definition at line 5389 of file il.h.

      : Definition(deopt_id),
        comparison_(comparison),
        if_true_(Smi::Cast(if_true->BoundConstant()).Value()),
        if_false_(Smi::Cast(if_false->BoundConstant()).Value()) {
    // Adjust uses at the comparison.
    ASSERT(comparison->env() == nullptr);
    for (intptr_t i = comparison->InputCount() - 1; i >= 0; --i) {
      comparison->InputAt(i)->set_instruction(this);
    }
  }

Member Function Documentation

◆ AllowsCSE()

virtual bool dart::IfThenElseInstr::AllowsCSE ( ) const

inlinevirtual

Reimplemented from dart::Instruction.

Definition at line 5438 of file il.h.

5438{ return comparison()->AllowsCSE(); }

dart::Instruction::AllowsCSE

virtual bool AllowsCSE() const

Definition il.h:1285

◆ AttributesEqual()

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

inlinevirtual

Reimplemented from dart::Instruction.

Definition at line 5444 of file il.h.

                                                               {
    auto const other_if_then_else = other.AsIfThenElse();
    return (comparison()->tag() == other_if_then_else->comparison()->tag()) &&
           comparison()->AttributesEqual(*other_if_then_else->comparison()) &&
           (if_true_ == other_if_then_else->if_true_) &&
           (if_false_ == other_if_then_else->if_false_);
  }

◆ CanBecomeDeoptimizationTarget()

virtual bool dart::IfThenElseInstr::CanBecomeDeoptimizationTarget ( ) const

inlinevirtual

Reimplemented from dart::Instruction.

Definition at line 5418 of file il.h.

                                                     {
    return comparison()->CanBecomeDeoptimizationTarget();
  }

◆ CanCallDart()

virtual bool dart::IfThenElseInstr::CanCallDart ( ) const

inlinevirtual

Reimplemented from dart::Instruction.

Definition at line 5442 of file il.h.

5442{ return comparison()->CanCallDart(); }

dart::Instruction::CanCallDart

virtual bool CanCallDart() const

Definition il.h:1298

◆ comparison()

ComparisonInstr * dart::IfThenElseInstr::comparison ( ) const

inline

Definition at line 5434 of file il.h.

5434{ return comparison_; }

◆ ComputeCanDeoptimize()

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

inlinevirtual

Implements dart::Instruction.

Definition at line 5414 of file il.h.

                                            {
    return comparison()->ComputeCanDeoptimize();
  }

◆ ComputeType()

CompileType dart::IfThenElseInstr::ComputeType ( ) const

virtual

Reimplemented from dart::Definition.

Definition at line 1191 of file type_propagator.cc.

                                               {
  return CompileType::FromCid(kSmiCid);
}

◆ CopyDeoptIdFrom()

virtual void dart::IfThenElseInstr::CopyDeoptIdFrom ( const Instruction & instr )

inlinevirtual

Reimplemented from dart::Instruction.

Definition at line 5454 of file il.h.

                                                         {
    Definition::CopyDeoptIdFrom(instr);
    comparison()->CopyDeoptIdFrom(instr);
  }

◆ DECLARE_INSTRUCTION_SERIALIZABLE_FIELDS()

dart::IfThenElseInstr::DECLARE_INSTRUCTION_SERIALIZABLE_FIELDS	(	IfThenElseInstr	,
		Definition	,
		FIELD_LIST
	)

inline

Definition at line 5466 of file il.h.

        :
  virtual void RawSetInputAt(intptr_t i, Value* value) {
    comparison()->RawSetInputAt(i, value);
  }

◆ DeoptimizationTarget()

virtual intptr_t dart::IfThenElseInstr::DeoptimizationTarget ( ) const

inlinevirtual

Reimplemented from dart::Instruction.

Definition at line 5422 of file il.h.

                                                {
    return comparison()->DeoptimizationTarget();
  }

◆ DISALLOW_COPY_AND_ASSIGN()

dart::IfThenElseInstr::DISALLOW_COPY_AND_ASSIGN ( IfThenElseInstr )

◆ HasUnknownSideEffects()

virtual bool dart::IfThenElseInstr::HasUnknownSideEffects ( ) const

inlinevirtual

Implements dart::Instruction.

Definition at line 5439 of file il.h.

                                             {
    return comparison()->HasUnknownSideEffects();
  }

◆ if_false()

intptr_t dart::IfThenElseInstr::if_false ( ) const

inline

Definition at line 5436 of file il.h.

5436{ return if_false_; }

◆ if_true()

intptr_t dart::IfThenElseInstr::if_true ( ) const

inline

Definition at line 5435 of file il.h.

5435{ return if_true_; }

◆ InferRange()

void dart::IfThenElseInstr::InferRange	(	RangeAnalysis *	analysis,
		Range *	range
	)

virtual

Reimplemented from dart::Definition.

Definition at line 2986 of file range_analysis.cc.

                                                                      {
  const intptr_t min = Utils::Minimum(if_true_, if_false_);
  const intptr_t max = Utils::Maximum(if_true_, if_false_);
  *range =
      Range(RangeBoundary::FromConstant(min), RangeBoundary::FromConstant(max));
}

◆ InputAt()

Value * dart::IfThenElseInstr::InputAt ( intptr_t i ) const

inlinevirtual

Implements dart::Instruction.

Definition at line 5412 of file il.h.

5412{ return comparison()->InputAt(i); }

◆ InputCount()

intptr_t dart::IfThenElseInstr::InputCount ( ) const

inlinevirtual

Implements dart::Instruction.

Definition at line 5410 of file il.h.

5410{ return comparison()->InputCount(); }

◆ MayThrow()

virtual bool dart::IfThenElseInstr::MayThrow ( ) const

inlinevirtual

Implements dart::Instruction.

Definition at line 5452 of file il.h.

5452{ return comparison()->MayThrow(); }

dart::Instruction::MayThrow

virtual bool MayThrow() const =0

◆ RequiredInputRepresentation()

virtual Representation dart::IfThenElseInstr::RequiredInputRepresentation ( intptr_t i ) const

inlinevirtual

Reimplemented from dart::Instruction.

Definition at line 5426 of file il.h.

                                                                       {
    return comparison()->RequiredInputRepresentation(i);
  }

◆ Supports()

bool dart::IfThenElseInstr::Supports	(	ComparisonInstr *	comparison,
		Value *	v1,
		Value *	v2
	)

static

Definition at line 6620 of file il.cc.

                                          {
  bool is_smi_result = v1->BindsToSmiConstant() && v2->BindsToSmiConstant();
  if (comparison->IsStrictCompare()) {
    // Strict comparison with number checks calls a stub and is not supported
    // by if-conversion.
    return is_smi_result &&
           !comparison->AsStrictCompare()->needs_number_check();
  }
  if (comparison->operation_cid() != kSmiCid) {
    // Non-smi comparisons are not supported by if-conversion.
    return false;
  }
  return is_smi_result;
}

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

Public Member Functions

Static Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ IfThenElseInstr()

Member Function Documentation

◆ AllowsCSE()

◆ AttributesEqual()

◆ CanBecomeDeoptimizationTarget()

◆ CanCallDart()

◆ comparison()

◆ ComputeCanDeoptimize()

◆ ComputeType()

◆ CopyDeoptIdFrom()

◆ DECLARE_INSTRUCTION_SERIALIZABLE_FIELDS()

◆ DeoptimizationTarget()

◆ DISALLOW_COPY_AND_ASSIGN()

◆ HasUnknownSideEffects()

◆ if_false()

◆ if_true()

◆ InferRange()

◆ InputAt()

◆ InputCount()

◆ MayThrow()

◆ RequiredInputRepresentation()

◆ Supports()