org.jikesrvm.compilers.opt.controlflow

Class DominatorOperator

java.lang.Object

org.jikesrvm.compilers.opt.dfsolver.DF_Operator

org.jikesrvm.compilers.opt.controlflow.DominatorOperator

class DominatorOperator
extends DF_Operator

This class implements the MEET operation for the dataflow equations for the dominator calculation.

Field Summary

Fields

Modifier and Type	Field and Description
(package private) static DominatorOperator	MEET A singleton instance of this class.

Constructor Summary

Constructors

Constructor and Description
DominatorOperator()

Method Summary

Modifier and Type	Method and Description
boolean	evaluate(DF_LatticeCell[] operands) Evaluate an equation with the MEET operation
String	toString() Return a String representation of the operator

Methods inherited from class java.lang.Object

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

Field Detail

MEET

static final DominatorOperator MEET

A singleton instance of this class.

Constructor Detail

DominatorOperator

DominatorOperator()

Method Detail

evaluate

public boolean evaluate(DF_LatticeCell[] operands)

Evaluate an equation with the MEET operation

Specified by:

evaluate in class DF_Operator

Parameters:

operands - the lhs(operands[0]) and rhs(operands[1]) of the equation.

Returns:

true if the value of the lhs changes. false otherwise

toString

public String toString()

Return a String representation of the operator

Overrides:

toString in class Object

Returns:

"MEET"