harpoon.IR.LowQuad
Class PPTR

java.lang.Object
  harpoon.IR.Quads.Quad
      harpoon.IR.LowQuad.LowQuad
          harpoon.IR.LowQuad.PPTR

All Implemented Interfaces:

HCodeElement, CFGraphable<Quad,Edge>, UseDefable, Graph.Node<Quad,Edge>, Serializable, Cloneable, Comparable<Quad>

Direct Known Subclasses:

PARRAY, PFIELD, PMETHOD

public abstract class PPTR
extends LowQuad

PPTR is an abstract superclass of the LowQuads that convert object references into POINTER types. We allow arithmetic only on POINTERs.

Version:

$Id: PPTR.java,v 1.4 2002/04/10 03:04:57 cananian Exp $

Author:

C. Scott Ananian <cananian@alumni.princeton.edu>

See Also:

Serialized Form

Field Summary

protected Temp	dst The Temp in which to store the computed POINTER value.
protected Temp	objectref The Temp holding the object reference to convert.

Fields inherited from class harpoon.IR.Quads.Quad

arrayFactory

Constructor Summary

PPTR(LowQuadFactory qf, HCodeElement source, Temp dst, Temp objectref)
Creates a PPTR.

Method Summary

Temp[]	def() Return all the Temps defined by this Quad.
Temp	dst() Returns the Temp in which to store the computed POINTER value.
Temp	objectref() Returns the Temp containing the object reference to convert into a POINTER.
Temp[]	use() Return all the Temps used by this Quad.

Methods inherited from class harpoon.IR.LowQuad.LowQuad

accept, accept

Methods inherited from class harpoon.IR.Quads.Quad

addEdge, addEdges, addHandlers, clone, clone, clone, compareTo, defC, edgeC, edges, getFactory, getID, getLineNumber, getSourceFile, handlers, hashCode, isPred, isSucc, kind, map, map, map, next, next, nextEdge, nextEdge, nextLength, pred, predC, prev, prev, prevEdge, prevEdge, prevLength, remove, removeHandlers, rename, rename, replace, succ, succC, toLongString, toString, transferHandlers, useC

Methods inherited from class java.lang.Object

equals, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

dst

protected final Temp dst

The Temp in which to store the computed POINTER value.

objectref

protected final Temp objectref

The Temp holding the object reference to convert.

Constructor Detail

PPTR

public PPTR(LowQuadFactory qf,
            HCodeElement source,
            Temp dst,
            Temp objectref)

Creates a PPTR.

Method Detail

dst

public Temp dst()

Returns the Temp in which to store the computed POINTER value.

objectref

public Temp objectref()

Returns the Temp containing the object reference to convert into a POINTER.

use

public Temp[] use()

Description copied from class: Quad

Return all the Temps used by this Quad.

Specified by:

use in interface UseDefable

Overrides:

use in class Quad

def

public Temp[] def()

Description copied from class: Quad

Return all the Temps defined by this Quad.

Specified by:

def in interface UseDefable

Overrides:

def in class Quad