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.

DF_Operator

public DF_Operator()

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.