com.oracle.graal.lir.alloc.lsra

Class LinearScanEliminateSpillMovePhase

java.lang.Object

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

com.oracle.graal.lir.phases.AllocationPhase

com.oracle.graal.lir.alloc.lsra.LinearScanEliminateSpillMovePhase

Direct Known Subclasses:

SSALinearScanEliminateSpillMovePhase, SSILinearScanEliminateSpillMovePhase

public class LinearScanEliminateSpillMovePhase
extends AllocationPhase

Nested Class Summary

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
protected LinearScan	allocator
private static LinearScan.IntervalPredicate	mustStoreAtDefinition

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	LinearScanEliminateSpillMovePhase(LinearScan allocator)

Method Summary

Modifier and Type	Method and Description
protected boolean	canEliminateSpillMove(AbstractBlockBase<?> block, StandardOp.MoveOp move)
private static void	checkIntervals(Interval interval)
(package private) void	eliminateSpillMoves()
protected int	firstInstructionOfInterest()
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

mustStoreAtDefinition

private static final LinearScan.IntervalPredicate mustStoreAtDefinition

allocator

protected final LinearScan allocator

Constructor Detail

LinearScanEliminateSpillMovePhase

protected LinearScanEliminateSpillMovePhase(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

firstInstructionOfInterest

protected int firstInstructionOfInterest()

Returns:

the index of the first instruction that is of interest for eliminateSpillMoves()

eliminateSpillMoves

void eliminateSpillMoves()

canEliminateSpillMove

protected boolean canEliminateSpillMove(AbstractBlockBase<?> block,
                                        StandardOp.MoveOp move)

Parameters:

block - The block move is located in.

move - Spill move.

checkIntervals

private static void checkIntervals(Interval interval)