com.oracle.graal.lir.alloc.lsra

Class LinearScanOptimizeSpillPositionPhase

java.lang.Object

com.oracle.graal.lir.phases.LIRPhase<AllocationPhase.AllocationContext>

com.oracle.graal.lir.phases.AllocationPhase

com.oracle.graal.lir.alloc.lsra.LinearScanOptimizeSpillPositionPhase

public final class LinearScanOptimizeSpillPositionPhase
extends AllocationPhase

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
private class	LinearScanOptimizeSpillPositionPhase.IntervalBlockIterator Iterate over all blocks of an interval.

Nested classes/interfaces inherited from class com.oracle.graal.lir.phases.AllocationPhase

AllocationPhase.AllocationContext

Nested classes/interfaces inherited from class com.oracle.graal.lir.phases.LIRPhase

LIRPhase.Options

Field Summary

Fields

Modifier and Type	Field and Description
private LinearScan	allocator
private static DebugMetric	betterSpillPos
private static DebugMetric	betterSpillPosWithLowerProbability

Constructor Summary

Constructors

Constructor and Description
LinearScanOptimizeSpillPositionPhase(LinearScan allocator)

Method Summary

Modifier and Type	Method and Description
private Iterable<AbstractBlockBase<?>>	blocksForInterval(Interval interval)
private static AbstractBlockBase<?>	moveSpillOutOfLoop(AbstractBlockBase<?> defBlock, AbstractBlockBase<?> spillBlock)
private void	optimizeInterval(LIRInsertionBuffer[] insertionBuffers, Interval interval)
private void	optimizeSpillPosition()
protected <B extends AbstractBlockBase<B>> void	run(TargetDescription target, LIRGenerationResult lirGenRes, List<B> codeEmittingOrder, List<B> linearScanOrder, LIRGeneratorTool.SpillMoveFactory spillMoveFactory, RegisterAllocationConfig registerAllocationConfig)

Methods inherited from class com.oracle.graal.lir.phases.AllocationPhase

run

Methods inherited from class com.oracle.graal.lir.phases.LIRPhase

apply, apply, createName, getName

Methods inherited from class java.lang.Object

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

Field Detail

betterSpillPos

private static final DebugMetric betterSpillPos

betterSpillPosWithLowerProbability

private static final DebugMetric betterSpillPosWithLowerProbability

allocator

private final LinearScan allocator

Constructor Detail

LinearScanOptimizeSpillPositionPhase

LinearScanOptimizeSpillPositionPhase(LinearScan allocator)

Method Detail

run

protected <B extends AbstractBlockBase<B>> void run(TargetDescription target,
                                                    LIRGenerationResult lirGenRes,
                                                    List<B> codeEmittingOrder,
                                                    List<B> linearScanOrder,
                                                    LIRGeneratorTool.SpillMoveFactory spillMoveFactory,
                                                    RegisterAllocationConfig registerAllocationConfig)

Specified by:

run in class AllocationPhase

optimizeSpillPosition

private void optimizeSpillPosition()

optimizeInterval

private void optimizeInterval(LIRInsertionBuffer[] insertionBuffers,
                              Interval interval)

blocksForInterval

private Iterable<AbstractBlockBase<?>> blocksForInterval(Interval interval)

moveSpillOutOfLoop

private static AbstractBlockBase<?> moveSpillOutOfLoop(AbstractBlockBase<?> defBlock,
                                                       AbstractBlockBase<?> spillBlock)