ValueGraphEdge (Jikes RVM API)

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org.jikesrvm.compilers.opt.ssa
Class ValueGraphEdge

java.lang.Object
  org.jikesrvm.compilers.opt.util.SpaceEffGraphEdge
      org.jikesrvm.compilers.opt.ssa.ValueGraphEdge

All Implemented Interfaces:: GraphEdge

final class ValueGraphEdge
extends SpaceEffGraphEdge
extends SpaceEffGraphEdge

This class implements an edge in the value graph used in global value numbering ala Alpern, Wegman and Zadeck. See Muchnick p.348 for a nice discussion.

Field Summary

Fields inherited from class org.jikesrvm.compilers.opt.util.SpaceEffGraphEdge
`_fromNode, _toNode, nextIn, nextOut, scratch`

Constructor Summary
`ValueGraphEdge(ValueGraphVertex src, ValueGraphVertex target)`

Method Summary
`String`	`toString()`

Methods inherited from class org.jikesrvm.compilers.opt.util.SpaceEffGraphEdge
`backEdge, clearBackEdge, clearDominatorEdge, clearVisited, dominatorEdge, from, fromNode, fromNodeString, getInfo, getNextIn, getNextOut, getTypeString, setBackEdge, setDominatorEdge, setInfo, setVisited, to, toNode, toNodeString, visited`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

Constructor Detail

ValueGraphEdge

ValueGraphEdge(ValueGraphVertex src,
               ValueGraphVertex target)

Method Detail

toString

public String toString()

Overrides:: toString in class Object