org.graalvm.compiler.lir.amd64.phases

Class StackMoveOptimizationPhase

java.lang.Object

org.graalvm.compiler.lir.phases.LIRPhase<PostAllocationOptimizationPhase.PostAllocationOptimizationContext>

org.graalvm.compiler.lir.phases.PostAllocationOptimizationPhase

org.graalvm.compiler.lir.amd64.phases.StackMoveOptimizationPhase

public class StackMoveOptimizationPhase
extends PostAllocationOptimizationPhase

Replaces sequential AMD64Move.AMD64StackMoves of the same type with a single AMD64Move.AMD64MultiStackMove to avoid storing/restoring the scratch register multiple times. Note: this phase must be inserted after RedundantMoveElimination phase because AMD64Move.AMD64MultiStackMove are not probably detected.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	StackMoveOptimizationPhase.Options

Nested classes/interfaces inherited from class org.graalvm.compiler.lir.phases.PostAllocationOptimizationPhase

PostAllocationOptimizationPhase.PostAllocationOptimizationContext

Nested classes/interfaces inherited from class org.graalvm.compiler.lir.phases.LIRPhase

LIRPhase.LIRPhaseStatistics

Field Summary

Fields inherited from class org.graalvm.compiler.lir.phases.LIRPhase

statisticsClassValue

Constructor Summary

Constructors

Constructor and Description
StackMoveOptimizationPhase()

Method Summary

Modifier and Type	Method and Description
protected void	run(TargetDescription target, LIRGenerationResult lirGenRes, PostAllocationOptimizationPhase.PostAllocationOptimizationContext context)

Methods inherited from class org.graalvm.compiler.lir.phases.LIRPhase

apply, apply, createName, createName, getLIRPhaseStatistics, getName

Methods inherited from class java.lang.Object

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

Constructor Detail

StackMoveOptimizationPhase

public StackMoveOptimizationPhase()

Method Detail

run

protected void run(TargetDescription target,
                   LIRGenerationResult lirGenRes,
                   PostAllocationOptimizationPhase.PostAllocationOptimizationContext context)

Specified by:

run in class LIRPhase<PostAllocationOptimizationPhase.PostAllocationOptimizationContext>