dart::DeoptPcMarkerInstr Class Reference

Inheritance diagram for dart::DeoptPcMarkerInstr:

Public Member Functions
	DeoptPcMarkerInstr (intptr_t object_table_index)
virtual intptr_t	source_index () const
virtual DeoptInstr::Kind	kind () const
virtual const char *	ArgumentsToCString () const
void	Execute (DeoptContext *deopt_context, intptr_t *dest_addr)
Public Member Functions inherited from dart::DeoptInstr
	DeoptInstr ()
virtual	~DeoptInstr ()
virtual const char *	ToCString () const
virtual CatchEntryMove	ToCatchEntryMove (DeoptContext *deopt_context, intptr_t dest_slot)
bool	Equals (const DeoptInstr &other) 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::DeoptInstr
enum	Kind {   kRetAddress , kConstant , kWord , kFloat ,   kDouble , kFloat32x4 , kFloat64x2 , kInt32x4 ,   kMintPair , kMint , kInt32 , kUint32 ,   kPcMarker , kPp , kCallerFp , kCallerPp ,   kCallerPc , kMaterializedObjectRef , kMaterializeObject }
Static Public Member Functions inherited from dart::DeoptInstr
static DeoptInstr *	Create (intptr_t kind_as_int, intptr_t source_index)
static uword	GetRetAddress (DeoptInstr *instr, const ObjectPool &object_pool, Code *code)
static intptr_t	GetFieldCount (DeoptInstr *instr)

Detailed Description

Definition at line 701 of file deopt_instructions.cc.

Constructor & Destructor Documentation

DeoptPcMarkerInstr()

dart::DeoptPcMarkerInstr::DeoptPcMarkerInstr ( intptr_t  object_table_index )

inlineexplicit

Definition at line 703 of file deopt_instructions.cc.

      : object_table_index_(object_table_index) {
    ASSERT(object_table_index >= 0);
  }

Member Function Documentation

ArgumentsToCString()

virtual const char * dart::DeoptPcMarkerInstr::ArgumentsToCString ( ) const

inlinevirtual

Reimplemented from dart::DeoptInstr.

Definition at line 711 of file deopt_instructions.cc.

                                                 {
    return Thread::Current()->zone()->PrintToString("%" Pd "",
                                                    object_table_index_);
  }

Execute()

void dart::DeoptPcMarkerInstr::Execute ( DeoptContext *  deopt_context, intptr_t *  dest_addr  )

inlinevirtual

Implements dart::DeoptInstr.

Definition at line 716 of file deopt_instructions.cc.

                                                                 {
    Function& function = Function::Handle(deopt_context->zone());
    function ^= deopt_context->ObjectAt(object_table_index_);
    if (function.IsNull()) {
      *reinterpret_cast<ObjectPtr*>(dest_addr) =
          deopt_context->is_lazy_deopt()
              ? StubCode::DeoptimizeLazyFromReturn().ptr()
              : StubCode::Deoptimize().ptr();
      return;
    }
 
    // We don't always have the Code object for the frame's corresponding
    // unoptimized code as it may have been collected. Use a stub as the pc
    // marker until we can recreate that Code object during deferred
    // materialization to maintain the invariant that Dart frames always have
    // a pc marker.
    *reinterpret_cast<ObjectPtr*>(dest_addr) =
        StubCode::FrameAwaitingMaterialization().ptr();
    deopt_context->DeferPcMarkerMaterialization(object_table_index_, dest_addr);
  }

kind()

virtual DeoptInstr::Kind dart::DeoptPcMarkerInstr::kind ( ) const

inlinevirtual

Implements dart::DeoptInstr.

Definition at line 709 of file deopt_instructions.cc.

{ return kPcMarker; }

source_index()

virtual intptr_t dart::DeoptPcMarkerInstr::source_index ( ) const

inlinevirtual

Implements dart::DeoptInstr.

Definition at line 708 of file deopt_instructions.cc.

{ return object_table_index_; }

---

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

• third_party/dart-lang/sdk/runtime/vm/deopt_instructions.cc