org.jikesrvm.compilers.opt.dfsolver

Class DF_Operator

java.lang.Object

org.jikesrvm.compilers.opt.dfsolver.DF_Operator

Direct Known Subclasses:

DominatorOperator, IndexPropagationSystem.MeetOperator, IndexPropagationSystem.UpdateDefArrayOperator, IndexPropagationSystem.UpdateDefObjectOperator, IndexPropagationSystem.UpdateUseArrayOperator, IndexPropagationSystem.UpdateUseObjectOperator

public abstract class DF_Operator
extends Object

Represents a function for DF_LatticeCell values.

Constructor Summary

Constructors

Constructor and Description
DF_Operator()

Method Summary

Modifier and Type	Method and Description
abstract boolean	evaluate(DF_LatticeCell[] operands) Evaluate this equation, setting a new value for the left-hand side.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DF_Operator

public DF_Operator()

Method Detail

evaluate

public abstract boolean evaluate(DF_LatticeCell[] operands)

Evaluate this equation, setting a new value for the left-hand side.

Parameters:

operands - The operands for this operator. operands[0] is the left-hand side.

Returns:

true if the lhs value changes. false otherwise.