dart::IndirectGotoInstr Class Reference

#include <il.h>

Inheritance diagram for dart::IndirectGotoInstr:

Public Member Functions
	IndirectGotoInstr (intptr_t target_count, Value *target_index)
virtual Representation	RequiredInputRepresentation (intptr_t idx) const
void	AddSuccessor (TargetEntryInstr *successor)
virtual intptr_t	SuccessorCount () const
virtual TargetEntryInstr *	SuccessorAt (intptr_t index) const
virtual bool	ComputeCanDeoptimize () const
virtual bool	CanBecomeDeoptimizationTarget () const
virtual bool	HasUnknownSideEffects () const
Value *	offset () const
void	ComputeOffsetTable (FlowGraphCompiler *compiler)
Public Member Functions inherited from dart::TemplateInstruction< 1, NoThrow >
	TemplateInstruction (intptr_t deopt_id=DeoptId::kNone)
	TemplateInstruction (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

Additional Inherited Members
Public Types inherited from dart::TemplateInstruction< 1, NoThrow >
using	BaseClass = typename NoCSE< Instruction, PureInstruction >::Base
Protected Attributes inherited from dart::TemplateInstruction< 1, NoThrow >
EmbeddedArray< Value *, N >	inputs_

Detailed Description

Definition at line 3778 of file il.h.

Constructor & Destructor Documentation

IndirectGotoInstr()

dart::IndirectGotoInstr::IndirectGotoInstr ( intptr_t  target_count, Value *  target_index  )

inline

Definition at line 3780 of file il.h.

      : offsets_(TypedData::ZoneHandle(TypedData::New(kTypedDataInt32ArrayCid,
                                                      target_count,
                                                      Heap::kOld))) {
    SetInputAt(0, target_index);
  }

Member Function Documentation

AddSuccessor()

void dart::IndirectGotoInstr::AddSuccessor ( TargetEntryInstr *  successor )

inline

Definition at line 3794 of file il.h.

                                                 {
    ASSERT(successor->next()->IsGoto());
    ASSERT(successor->next()->AsGoto()->successor()->IsIndirectEntry());
    successors_.Add(successor);
  }

CanBecomeDeoptimizationTarget()

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

inlinevirtual

Definition at line 3807 of file il.h.

{ return false; }

ComputeCanDeoptimize()

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

inlinevirtual

Definition at line 3806 of file il.h.

{ return false; }

ComputeOffsetTable()

void dart::IndirectGotoInstr::ComputeOffsetTable

(

FlowGraphCompiler *

compiler

)

Definition at line 4499 of file il.cc.

                                                                      {
  ASSERT(SuccessorCount() == offsets_.Length());
  intptr_t element_size = offsets_.ElementSizeInBytes();
  for (intptr_t i = 0; i < SuccessorCount(); i++) {
    TargetEntryInstr* target = SuccessorAt(i);
    auto* label = compiler->GetJumpLabel(target);
    RELEASE_ASSERT(label != nullptr);
    RELEASE_ASSERT(label->IsBound());
    intptr_t offset = label->Position();
    RELEASE_ASSERT(offset > 0);
    offsets_.SetInt32(i * element_size, offset);
  }
}

HasUnknownSideEffects()

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

inlinevirtual

Definition at line 3809 of file il.h.

{ return false; }

offset()

Value * dart::IndirectGotoInstr::offset ( ) const

inline

Definition at line 3811 of file il.h.

{ return inputs_[0]; }

RequiredInputRepresentation()

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

inlinevirtual

Definition at line 3789 of file il.h.

                                                                         {
    ASSERT(idx == 0);
    return kTagged;
  }

SuccessorAt()

virtual TargetEntryInstr * dart::IndirectGotoInstr::SuccessorAt ( intptr_t  index ) const

inlinevirtual

Definition at line 3801 of file il.h.

                                                              {
    ASSERT(index < SuccessorCount());
    return successors_[index];
  }

SuccessorCount()

virtual intptr_t dart::IndirectGotoInstr::SuccessorCount ( ) const

inlinevirtual

Definition at line 3800 of file il.h.

{ return successors_.length(); }

---

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/il_serializer.cc