org.jikesrvm.compilers.opt.regalloc

Class BlockCountSpillCost

java.lang.Object

org.jikesrvm.compilers.opt.regalloc.SpillCostEstimator

org.jikesrvm.compilers.opt.regalloc.BlockCountSpillCost

final class BlockCountSpillCost
extends SpillCostEstimator

An object that returns an estimate of the relative cost of spilling a symbolic register, based on basic block frequencies.

Constructor Summary

Constructors

Constructor and Description
BlockCountSpillCost(IR ir)

Method Summary

Modifier and Type	Method and Description
(package private) void	calculate(IR ir) Calculates the estimated cost for each register.

Methods inherited from class org.jikesrvm.compilers.opt.regalloc.SpillCostEstimator

getCost, update

Methods inherited from class java.lang.Object

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

Constructor Detail

BlockCountSpillCost

BlockCountSpillCost(IR ir)

Method Detail

calculate

void calculate(IR ir)

Description copied from class: SpillCostEstimator

Calculates the estimated cost for each register.

Specified by:

calculate in class SpillCostEstimator

Parameters:

ir - the IR object