harpoon.IR.Tree
Class TEMP

java.lang.Object
  harpoon.IR.Tree.Tree
      harpoon.IR.Tree.Exp
          harpoon.IR.Tree.TEMP

All Implemented Interfaces:

HCodeElement, Typed

public class TEMP
extends Exp

TEMP objects are expressions which stand for a value in a virtual register.

Version:

$Id: TEMP.java,v 1.4 2002/04/10 03:05:45 cananian Exp $

Author:

C. Scott Ananian <cananian@alumni.princeton.edu>, based on Modern Compiler Implementation in Java by Andrew Appel.

Nested Class Summary

Nested classes/interfaces inherited from class harpoon.IR.Tree.Tree

Tree.CloneCallback

Field Summary

Temp	temp The Temp which this TEMP refers to.
int	type The type of this Temp expression.

Fields inherited from class harpoon.IR.Tree.Tree

arrayFactory, child

Fields inherited from interface harpoon.IR.Tree.Typed

DOUBLE, FLOAT, INT, LONG, POINTER

Constructor Summary

TEMP(TreeFactory tf, HCodeElement source, int type, Temp temp)
Constructor.

Method Summary

void	accept(TreeVisitor v) Accept a visitor
Exp	build(TreeFactory tf, ExpList kids)
int	kind() Return an integer enumeration of the kind of this Tree.
Tree	rename(TreeFactory tf, TempMap tm, Tree.CloneCallback cb) Rename while cloning a subtree.
String	toString()
int	type() Result type.

Methods inherited from class harpoon.IR.Tree.Exp

build, isDoubleWord, isFloatingPoint

Methods inherited from class harpoon.IR.Tree.Tree

clone, clone, getChild, getFactory, getFirstChild, getID, getLineNumber, getParent, getSibling, getSourceFile, hashCode, kids, rename, replace, setChild, unlink

Methods inherited from class java.lang.Object

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

Field Detail

temp

public final Temp temp

The Temp which this TEMP refers to.

type

public final int type

The type of this Temp expression.

Constructor Detail

TEMP

public TEMP(TreeFactory tf,
            HCodeElement source,
            int type,
            Temp temp)

Constructor.

Method Detail

kind

public int kind()

Description copied from class: Tree

Return an integer enumeration of the kind of this Tree. The enumerated values are defined in TreeKind.

Specified by:

kind in class Tree

build

public Exp build(TreeFactory tf,
                 ExpList kids)

Specified by:

build in class Exp

type

public int type()

Description copied from class: Exp

Result type.

Specified by:

type in interface Typed

Specified by:

type in class Exp

accept

public void accept(TreeVisitor v)

Accept a visitor

Specified by:

accept in class Tree

rename

public Tree rename(TreeFactory tf,
                   TempMap tm,
                   Tree.CloneCallback cb)

Description copied from class: Tree

Rename while cloning a subtree. This node and all child nodes are cloned; the 'temp' information of all TEMP nodes are renamed according to the supplied TempMap. Note that Temps not belonging to this.getFactory().tempFactory() are not affected. The callback() method of the supplied CloneCallback is invoked once on each subtree cloned, starting from the leaves and working back to the root in a post-order depth-first manner.

Specified by:

rename in class Tree

toString

public String toString()

Overrides:

toString in class Object