org.jikesrvm.compilers.opt.ssa

Class SSATuneUp

java.lang.Object

org.jikesrvm.compilers.opt.driver.OptimizationPlanElement

org.jikesrvm.compilers.opt.driver.OptimizationPlanCompositeElement

org.jikesrvm.compilers.opt.ssa.SSATuneUp

public final class SSATuneUp
extends OptimizationPlanCompositeElement

This phase puts the IR in SSA form and performs a set of simple optimizations to clean up.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
private static class	SSATuneUp.FoldingDriver This class drives expression folding.
static class	SSATuneUp.TuneUpPreparation This class sets up the IR state prior to entering SSA.

Constructor Summary

Constructors

Constructor and Description
SSATuneUp() Build this phase as a composite of others.

Method Summary

Modifier and Type	Method and Description
boolean	shouldPerform(OptOptions options) Determine, possibly by consulting the passed options object, if this optimization plan element should be performed.

Methods inherited from class org.jikesrvm.compilers.opt.driver.OptimizationPlanCompositeElement

compose, elapsedTime, getName, initializeForMeasureCompilation, perform, printingEnabled, reportStats

Methods inherited from class org.jikesrvm.compilers.opt.driver.OptimizationPlanElement

prettyPrintTime

Methods inherited from class java.lang.Object

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

Constructor Detail

SSATuneUp

public SSATuneUp()

Build this phase as a composite of others.

Method Detail

shouldPerform

public boolean shouldPerform(OptOptions options)

Description copied from class: OptimizationPlanElement

Determine, possibly by consulting the passed options object, if this optimization plan element should be performed.

Overrides:

shouldPerform in class OptimizationPlanCompositeElement

Parameters:

options - The Options object for the current compilation.

Returns:

true if the plan element should be performed.