#include <il.h>

Inheritance diagram for dart::LoadClassIdInstr:

Public Member Functions
	LoadClassIdInstr (Value *object, Representation representation=kTagged, bool input_can_be_smi=true)

virtual Representation	representation () const

virtual CompileType	ComputeType () const

virtual Definition *	Canonicalize (FlowGraph *flow_graph)

Value *	object () const

virtual bool	ComputeCanDeoptimize () const

virtual bool	AttributesEqual (const Instruction &other) const

void	InferRange (uword lower, uword upper)

virtual void	InferRange (RangeAnalysis analysis, Range range)

Public Member Functions inherited from dart::TemplateDefinition< 1, NoThrow, Pure >
	TemplateDefinition (intptr_t deopt_id=DeoptId::kNone)

	TemplateDefinition (const InstructionSource &source, 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::TemplateDefinition< 1, NoThrow, Pure >
using	BaseClass = typename Pure< Definition, PureDefinition >::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::TemplateDefinition< 1, NoThrow, Pure >
EmbeddedArray< Value *, N >	inputs_

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

Detailed Description

Definition at line 8050 of file il.h.

Constructor & Destructor Documentation

◆ LoadClassIdInstr()

dart::LoadClassIdInstr::LoadClassIdInstr	(	Value *	object,
		Representation	representation = `kTagged`,
		bool	input_can_be_smi = `true`
	)

inlineexplicit

Definition at line 8052 of file il.h.

      : representation_(representation), input_can_be_smi_(input_can_be_smi) {
    ASSERT(representation == kTagged || representation == kUnboxedUword);
    SetInputAt(0, object);
  }

Member Function Documentation

◆ AttributesEqual()

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

inlinevirtual

Reimplemented from dart::Instruction.

Definition at line 8070 of file il.h.

                                                               {
    auto const other_load = other.AsLoadClassId();
    return other_load->representation_ == representation_ &&
           other_load->input_can_be_smi_ == input_can_be_smi_;
  }

◆ Canonicalize()

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

virtual

Reimplemented from dart::Definition.

Definition at line 3809 of file il.cc.

                                                                {
  if (!HasUses()) return nullptr;
 
  const intptr_t cid = object()->Type()->ToCid();
  if (cid != kDynamicCid) {
    const auto& smi = Smi::ZoneHandle(flow_graph->zone(), Smi::New(cid));
    return flow_graph->GetConstant(smi, representation());
  }
  return this;
}

◆ ComputeCanDeoptimize()

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

inlinevirtual

Implements dart::Instruction.

Definition at line 8068 of file il.h.

8068{ return false; }

◆ ComputeType()

CompileType dart::LoadClassIdInstr::ComputeType ( ) const

virtual

Reimplemented from dart::Definition.

Definition at line 1697 of file type_propagator.cc.

                                                {
  return CompileType::FromCid(kSmiCid);
}

◆ InferRange() [1/2]

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

virtual

Reimplemented from dart::Definition.

Definition at line 2955 of file range_analysis.cc.

                                                                       {
  uword lower, upper;
  InferRange(&lower, &upper);
  *range = Range(RangeBoundary::FromConstant(lower),
                 RangeBoundary::FromConstant(upper));
}

◆ InferRange() [2/2]

void dart::LoadClassIdInstr::InferRange	(	uword *	lower,
		uword *	upper
	)

Definition at line 2920 of file range_analysis.cc.

                                                            {
  ASSERT(kIllegalCid == 0);
  *lower = 1;
  *upper = kClassIdTagMax;
 
  CompileType* ctype = object()->Type();
  intptr_t cid = ctype->ToCid();
  if (cid != kDynamicCid) {
    *lower = *upper = cid;
  } else if (CompilerState::Current().is_aot()) {
    IsolateGroup* isolate_group = IsolateGroup::Current();
    *upper = isolate_group->has_dynamically_extendable_classes()
                 ? kClassIdTagMax
                 : isolate_group->class_table()->NumCids();
 
    HierarchyInfo* hi = Thread::Current()->hierarchy_info();
    if (hi != nullptr) {
      const auto& type = *ctype->ToAbstractType();
      if (type.IsType() && !type.IsFutureOrType() &&
          !Instance::NullIsAssignableTo(type)) {
        const auto& type_class = Class::Handle(type.type_class());
        if (!type_class.has_dynamically_extendable_subtypes()) {
          const auto& ranges =
              hi->SubtypeRangesForClass(type_class, /*include_abstract=*/false,
                                        /*exclude_null=*/true);
          if (ranges.length() > 0) {
            *lower = ranges[0].cid_start;
            *upper = ranges[ranges.length() - 1].cid_end;
          }
        }
      }
    }
  }
}

◆ object()

Value * dart::LoadClassIdInstr::object ( ) const

inline

Definition at line 8066 of file il.h.

8066{ return inputs_[0]; }

dart::TemplateDefinition< 1, NoThrow, Pure >::inputs_

EmbeddedArray< Value *, N > inputs_

Definition: il.h:2762

◆ representation()

virtual Representation dart::LoadClassIdInstr::representation ( ) const

inlinevirtual

Reimplemented from dart::Instruction.

Definition at line 8060 of file il.h.

8060{ return representation_; }

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

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ LoadClassIdInstr()

Member Function Documentation

◆ AttributesEqual()

◆ Canonicalize()

◆ ComputeCanDeoptimize()

◆ ComputeType()

◆ InferRange() [1/2]

◆ InferRange() [2/2]

◆ object()

◆ representation()