#include <il.h>

Inheritance diagram for dart::BinaryIntegerOpInstr:

Public Member Functions
	BinaryIntegerOpInstr (Token::Kind op_kind, Value left, Value right, intptr_t deopt_id)

Token::Kind	op_kind () const

Value *	left () const

Value *	right () const

bool	can_overflow () const

void	set_can_overflow (bool overflow)

bool	is_truncating () const

void	mark_truncating ()

bool	RightIsNonZero () const

bool	RightIsPowerOfTwoConstant () const

virtual Definition *	Canonicalize (FlowGraph *flow_graph)

virtual bool	AttributesEqual (const Instruction &other) const

virtual intptr_t	DeoptimizationTarget () const

virtual void	InferRange (RangeAnalysis analysis, Range range)

Public Member Functions inherited from dart::TemplateDefinition< 2, 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)

Static Public Member Functions
static BinaryIntegerOpInstr *	Make (Representation representation, Token::Kind op_kind, Value left, Value right, intptr_t deopt_id, SpeculativeMode speculative_mode=kGuardInputs)

static BinaryIntegerOpInstr *	Make (Representation representation, Token::Kind op_kind, Value left, Value right, intptr_t deopt_id, bool can_overflow, bool is_truncating, Range *range, SpeculativeMode speculative_mode=kGuardInputs)

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::TemplateDefinition< 2, 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 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< 2, NoThrow, Pure >
EmbeddedArray< Value *, N >	inputs_

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

Detailed Description

Definition at line 9363 of file il.h.

Constructor & Destructor Documentation

◆ BinaryIntegerOpInstr()

dart::BinaryIntegerOpInstr::BinaryIntegerOpInstr	(	Token::Kind	op_kind,
		Value *	left,
		Value *	right,
		intptr_t	deopt_id
	)

inline

Definition at line 9365 of file il.h.

      : TemplateDefinition(deopt_id),
        op_kind_(op_kind),
        can_overflow_(true),
        is_truncating_(false) {
    SetInputAt(0, left);
    SetInputAt(1, right);
  }

Member Function Documentation

◆ AttributesEqual()

bool dart::BinaryIntegerOpInstr::AttributesEqual ( const Instruction & other ) const

virtual

Reimplemented from dart::Instruction.

Reimplemented in dart::BinaryInt64OpInstr.

Definition at line 1113 of file il.cc.

                                                                         {
  ASSERT(other.tag() == tag());
  auto const other_op = other.AsBinaryIntegerOp();
  return (op_kind() == other_op->op_kind()) &&
         (can_overflow() == other_op->can_overflow()) &&
         (is_truncating() == other_op->is_truncating());
}

◆ can_overflow()

bool dart::BinaryIntegerOpInstr::can_overflow ( ) const

inline

Definition at line 9400 of file il.h.

9400{ return can_overflow_; }

◆ Canonicalize()

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

virtual

Reimplemented from dart::Definition.

Definition at line 2409 of file il.cc.

                                                                    {
  // If range analysis has already determined a single possible value for
  // this operation, then replace it if possible.
  if (RangeUtils::IsSingleton(range()) && CanReplaceWithConstant()) {
    const auto& value =
        Integer::Handle(Integer::NewCanonical(range()->Singleton()));
    auto* const replacement =
        flow_graph->TryCreateConstantReplacementFor(this, value);
    if (replacement != this) {
      return replacement;
    }
  }
 
  // If both operands are constants evaluate this expression. Might
  // occur due to load forwarding after constant propagation pass
  // have already been run.
 
  if (left()->BindsToConstant() && right()->BindsToConstant()) {
    const Integer& result = Integer::Handle(Evaluator::BinaryIntegerEvaluate(
        left()->BoundConstant(), right()->BoundConstant(), op_kind(),
        is_truncating(), representation(), Thread::Current()));
 
    if (!result.IsNull()) {
      return flow_graph->TryCreateConstantReplacementFor(this, result);
    }
  }
 
  if (left()->BindsToConstant() && !right()->BindsToConstant() &&
      IsCommutative(op_kind())) {
    Value* l = left();
    Value* r = right();
    SetInputAt(0, r);
    SetInputAt(1, l);
  }
 
  int64_t rhs;
  if (!Evaluator::ToIntegerConstant(right(), &rhs)) {
    return this;
  }
 
  if (is_truncating()) {
    switch (op_kind()) {
      case Token::kMUL:
      case Token::kSUB:
      case Token::kADD:
      case Token::kBIT_AND:
      case Token::kBIT_OR:
      case Token::kBIT_XOR:
        rhs = Evaluator::TruncateTo(rhs, representation());
        break;
      default:
        break;
    }
  }
 
  if (IsBinaryUint32Op() && HasUnmatchedInputRepresentations()) {
    // Canonicalization may eliminate instruction and loose truncation,
    // so it is illegal to canonicalize truncating uint32 instruction
    // until all conversions for its inputs are inserted.
    return this;
  }
 
  switch (op_kind()) {
    case Token::kMUL:
      if (rhs == 1) {
        return left()->definition();
      } else if (rhs == 0) {
        return right()->definition();
      } else if ((rhs > 0) && Utils::IsPowerOfTwo(rhs)) {
        const int64_t shift_amount = Utils::ShiftForPowerOfTwo(rhs);
        const Representation shift_amount_rep =
            (SpeculativeModeOfInputs() == kNotSpeculative) ? kUnboxedInt64
                                                           : kTagged;
        ConstantInstr* constant_shift_amount = flow_graph->GetConstant(
            Smi::Handle(Smi::New(shift_amount)), shift_amount_rep);
        BinaryIntegerOpInstr* shift = BinaryIntegerOpInstr::Make(
            representation(), Token::kSHL, left()->CopyWithType(),
            new Value(constant_shift_amount), GetDeoptId(), can_overflow(),
            is_truncating(), range(), SpeculativeModeOfInputs());
        if (shift != nullptr) {
          // Assign a range to the shift factor, just in case range
          // analysis no longer runs after this rewriting.
          if (auto shift_with_range = shift->AsShiftIntegerOp()) {
            shift_with_range->set_shift_range(
                new Range(RangeBoundary::FromConstant(shift_amount),
                          RangeBoundary::FromConstant(shift_amount)));
          }
          if (!MayThrow()) {
            ASSERT(!shift->MayThrow());
          }
          if (!CanDeoptimize()) {
            ASSERT(!shift->CanDeoptimize());
          }
          flow_graph->InsertBefore(this, shift, env(), FlowGraph::kValue);
          return shift;
        }
      }
 
      break;
    case Token::kADD:
      if (rhs == 0) {
        return left()->definition();
      }
      break;
    case Token::kBIT_AND:
      if (rhs == 0) {
        return right()->definition();
      } else if (rhs == RepresentationMask(representation())) {
        return left()->definition();
      }
      break;
    case Token::kBIT_OR:
      if (rhs == 0) {
        return left()->definition();
      } else if (rhs == RepresentationMask(representation())) {
        return right()->definition();
      }
      break;
    case Token::kBIT_XOR:
      if (rhs == 0) {
        return left()->definition();
      } else if (rhs == RepresentationMask(representation())) {
        UnaryIntegerOpInstr* bit_not = UnaryIntegerOpInstr::Make(
            representation(), Token::kBIT_NOT, left()->CopyWithType(),
            GetDeoptId(), SpeculativeModeOfInputs(), range());
        if (bit_not != nullptr) {
          flow_graph->InsertBefore(this, bit_not, env(), FlowGraph::kValue);
          return bit_not;
        }
      }
      break;
 
    case Token::kSUB:
      if (rhs == 0) {
        return left()->definition();
      }
      break;
 
    case Token::kTRUNCDIV:
      if (rhs == 1) {
        return left()->definition();
      } else if (rhs == -1) {
        UnaryIntegerOpInstr* negation = UnaryIntegerOpInstr::Make(
            representation(), Token::kNEGATE, left()->CopyWithType(),
            GetDeoptId(), SpeculativeModeOfInputs(), range());
        if (negation != nullptr) {
          flow_graph->InsertBefore(this, negation, env(), FlowGraph::kValue);
          return negation;
        }
      }
      break;
 
    case Token::kMOD:
      if ((rhs == -1) || (rhs == 1)) {
        return flow_graph->TryCreateConstantReplacementFor(this,
                                                           Object::smi_zero());
      }
      break;
 
    case Token::kUSHR:
      if (rhs >= kBitsPerInt64) {
        return flow_graph->TryCreateConstantReplacementFor(this,
                                                           Object::smi_zero());
      }
      FALL_THROUGH;
    case Token::kSHR:
      if (rhs == 0) {
        return left()->definition();
      } else if (rhs < 0) {
        // Instruction will always throw on negative rhs operand.
        if (!CanDeoptimize()) {
          // For non-speculative operations (no deopt), let
          // the code generator deal with throw on slowpath.
          break;
        }
        ASSERT(GetDeoptId() != DeoptId::kNone);
        DeoptimizeInstr* deopt =
            new DeoptimizeInstr(ICData::kDeoptBinarySmiOp, GetDeoptId());
        flow_graph->InsertBefore(this, deopt, env(), FlowGraph::kEffect);
        // Replace with zero since it always throws.
        return flow_graph->TryCreateConstantReplacementFor(this,
                                                           Object::smi_zero());
      }
      break;
 
    case Token::kSHL: {
      const intptr_t result_bits = RepresentationBits(representation());
      if (rhs == 0) {
        return left()->definition();
      } else if ((rhs >= kBitsPerInt64) ||
                 ((rhs >= result_bits) && is_truncating())) {
        return flow_graph->TryCreateConstantReplacementFor(this,
                                                           Object::smi_zero());
      } else if ((rhs < 0) || ((rhs >= result_bits) && !is_truncating())) {
        // Instruction will always throw on negative rhs operand or
        // deoptimize on large rhs operand.
        if (!CanDeoptimize()) {
          // For non-speculative operations (no deopt), let
          // the code generator deal with throw on slowpath.
          break;
        }
        ASSERT(GetDeoptId() != DeoptId::kNone);
        DeoptimizeInstr* deopt =
            new DeoptimizeInstr(ICData::kDeoptBinarySmiOp, GetDeoptId());
        flow_graph->InsertBefore(this, deopt, env(), FlowGraph::kEffect);
        // Replace with zero since it overshifted or always throws.
        return flow_graph->TryCreateConstantReplacementFor(this,
                                                           Object::smi_zero());
      }
      break;
    }
 
    default:
      break;
  }
 
  return this;
}

◆ DeoptimizationTarget()

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

inlinevirtual

Reimplemented from dart::Instruction.

Definition at line 9424 of file il.h.

9424{ return GetDeoptId(); }

◆ InferRange()

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

virtual

Reimplemented from dart::Definition.

Reimplemented in dart::BinarySmiOpInstr, and dart::ShiftIntegerOpInstr.

Definition at line 3039 of file range_analysis.cc.

                                                                           {
  auto const left_size =
      RepresentationToRangeSize(RequiredInputRepresentation(0));
  auto const right_size =
      RepresentationToRangeSize(RequiredInputRepresentation(1));
  InferRangeHelper(GetInputRange(analysis, left_size, left()),
                   GetInputRange(analysis, right_size, right()), range);
}

◆ is_truncating()

bool dart::BinaryIntegerOpInstr::is_truncating ( ) const

inline

Definition at line 9406 of file il.h.

9406{ return is_truncating_; }

◆ left()

Value * dart::BinaryIntegerOpInstr::left ( ) const

inline

Definition at line 9397 of file il.h.

9397{ return inputs_[0]; }

dart::TemplateDefinition< 2, NoThrow, Pure >::inputs_

EmbeddedArray< Value *, N > inputs_

Definition: il.h:2762

◆ Make() [1/2]

BinaryIntegerOpInstr * dart::BinaryIntegerOpInstr::Make	(	Representation	representation,
		Token::Kind	op_kind,
		Value *	left,
		Value *	right,
		intptr_t	deopt_id,
		bool	can_overflow,
		bool	is_truncating,
		Range *	range,
		SpeculativeMode	speculative_mode = `kGuardInputs`
	)

static

Definition at line 2366 of file il.cc.

                                      {
  BinaryIntegerOpInstr* op = BinaryIntegerOpInstr::Make(
      representation, op_kind, left, right, deopt_id, speculative_mode);
  if (op == nullptr) {
    return nullptr;
  }
  if (!Range::IsUnknown(range)) {
    op->set_range(*range);
  }
 
  op->set_can_overflow(can_overflow);
  if (is_truncating) {
    op->mark_truncating();
  }
 
  return op;
}

◆ Make() [2/2]

BinaryIntegerOpInstr * dart::BinaryIntegerOpInstr::Make	(	Representation	representation,
		Token::Kind	op_kind,
		Value *	left,
		Value *	right,
		intptr_t	deopt_id,
		SpeculativeMode	speculative_mode = `kGuardInputs`
	)

static

Definition at line 2293 of file il.cc.

                                      {
  BinaryIntegerOpInstr* op = nullptr;
  Range* right_range = nullptr;
  switch (op_kind) {
    case Token::kMOD:
    case Token::kTRUNCDIV:
      if (representation != kTagged) break;
      FALL_THROUGH;
    case Token::kSHL:
    case Token::kSHR:
    case Token::kUSHR:
      if (auto const const_def = right->definition()->AsConstant()) {
        right_range = new Range();
        const_def->InferRange(nullptr, right_range);
      }
      break;
    default:
      break;
  }
  switch (representation) {
    case kTagged:
      op = new BinarySmiOpInstr(op_kind, left, right, deopt_id, right_range);
      break;
    case kUnboxedInt32:
      if (!BinaryInt32OpInstr::IsSupported(op_kind, left, right)) {
        return nullptr;
      }
      op = new BinaryInt32OpInstr(op_kind, left, right, deopt_id);
      break;
    case kUnboxedUint32:
      if ((op_kind == Token::kSHL) || (op_kind == Token::kSHR) ||
          (op_kind == Token::kUSHR)) {
        if (speculative_mode == kNotSpeculative) {
          op = new ShiftUint32OpInstr(op_kind, left, right, deopt_id,
                                      right_range);
        } else {
          op = new SpeculativeShiftUint32OpInstr(op_kind, left, right, deopt_id,
                                                 right_range);
        }
      } else {
        op = new BinaryUint32OpInstr(op_kind, left, right, deopt_id);
      }
      break;
    case kUnboxedInt64:
      if ((op_kind == Token::kSHL) || (op_kind == Token::kSHR) ||
          (op_kind == Token::kUSHR)) {
        if (speculative_mode == kNotSpeculative) {
          op = new ShiftInt64OpInstr(op_kind, left, right, deopt_id,
                                     right_range);
        } else {
          op = new SpeculativeShiftInt64OpInstr(op_kind, left, right, deopt_id,
                                                right_range);
        }
      } else {
        op = new BinaryInt64OpInstr(op_kind, left, right, deopt_id,
                                    speculative_mode);
      }
      break;
    default:
      UNREACHABLE();
      return nullptr;
  }
 
  ASSERT(op->representation() == representation);
  return op;
}

◆ mark_truncating()

void dart::BinaryIntegerOpInstr::mark_truncating ( )

inline

Definition at line 9407 of file il.h.

                         {
    is_truncating_ = true;
    set_can_overflow(false);
  }

◆ op_kind()

Token::Kind dart::BinaryIntegerOpInstr::op_kind ( ) const

inline

Definition at line 9396 of file il.h.

9396{ return op_kind_; }

◆ right()

Value * dart::BinaryIntegerOpInstr::right ( ) const

inline

Definition at line 9398 of file il.h.

9398{ return inputs_[1]; }

◆ RightIsNonZero()

bool dart::BinaryIntegerOpInstr::RightIsNonZero ( ) const

Definition at line 2116 of file il.cc.

                                                {
  if (right()->BindsToConstant()) {
    const auto& constant = right()->BoundConstant();
    if (!constant.IsInteger()) return false;
    return Integer::Cast(constant).AsInt64Value() != 0;
  }
  return !RangeUtils::CanBeZero(right()->definition()->range());
}

◆ RightIsPowerOfTwoConstant()

bool dart::BinaryIntegerOpInstr::RightIsPowerOfTwoConstant ( ) const

Definition at line 2125 of file il.cc.

                                                           {
  if (!right()->BindsToConstant()) return false;
  const Object& constant = right()->BoundConstant();
  if (!constant.IsSmi()) return false;
  const intptr_t int_value = Smi::Cast(constant).Value();
  ASSERT(int_value != kIntptrMin);
  return Utils::IsPowerOfTwo(Utils::Abs(int_value));
}

◆ set_can_overflow()

void dart::BinaryIntegerOpInstr::set_can_overflow ( bool overflow )

inline

Definition at line 9401 of file il.h.

                                       {
    ASSERT(!is_truncating_ || !overflow);
    can_overflow_ = overflow;
  }

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

Public Member Functions

Static Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ BinaryIntegerOpInstr()

Member Function Documentation

◆ AttributesEqual()

◆ can_overflow()

◆ Canonicalize()

◆ DeoptimizationTarget()

◆ InferRange()

◆ is_truncating()

◆ left()

◆ Make() [1/2]

◆ Make() [2/2]

◆ mark_truncating()

◆ op_kind()

◆ right()

◆ RightIsNonZero()

◆ RightIsPowerOfTwoConstant()

◆ set_can_overflow()