com.oracle.graal.lir.alloc.lsra

Class OptimizingLinearScanWalker

java.lang.Object

com.oracle.graal.lir.alloc.lsra.IntervalWalker

com.oracle.graal.lir.alloc.lsra.LinearScanWalker

com.oracle.graal.lir.alloc.lsra.OptimizingLinearScanWalker

public class OptimizingLinearScanWalker
extends LinearScanWalker

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	OptimizingLinearScanWalker.Options

Field Summary

Fields inherited from class com.oracle.graal.lir.alloc.lsra.LinearScanWalker

availableRegs, blockPos, spillIntervals, usePos

Fields inherited from class com.oracle.graal.lir.alloc.lsra.IntervalWalker

activeLists, allocator, currentBinding, currentPosition, inactiveLists, unhandledLists

Constructor Summary

Constructors

Constructor and Description
OptimizingLinearScanWalker(LinearScan allocator, Interval unhandledFixedFirst, Interval unhandledAnyFirst)

Method Summary

Modifier and Type	Method and Description
protected void	handleSpillSlot(Interval interval) This is called for every interval that is assigned to a stack slot.
private boolean	optimize(int currentPos, AbstractBlockBase<?> currentBlock, Interval currentInterval, Interval.RegisterBinding binding)
private void	optimizeBlock(AbstractBlockBase<?> block)
private static void	printRegisterBindingList(Interval.RegisterBindingLists list, Interval.RegisterBinding binding)
private void	splitRegisterInterval(Interval interval, Register reg)
(package private) void	walk()

Methods inherited from class com.oracle.graal.lir.alloc.lsra.LinearScanWalker

activateCurrent, allocFreeRegister, allocLockedRegister, blockAt, blockCount, blockOfOpWithId, combineSpilledIntervals, excludeFromUse, findOptimalSplitPos, findOptimalSplitPos, finishAllocation, freeCollectInactiveAny, freeCollectInactiveFixed, freeCollectUnhandled, freeExcludeActiveAny, freeExcludeActiveFixed, initUseLists, initVarsForAlloc, insertMove, isMove, isRegisterInRange, maxRegisterNumber, minRegisterNumber, noAllocationPossible, printRegisterState, setBlockPos, setUsePos, spillBlockInactiveFixed, spillBlockUnhandledFixed, spillCollectActiveAny, spillCollectInactiveAny, spillExcludeActiveFixed, splitAndSpillIntersectingIntervals, splitAndSpillInterval, splitBeforeUsage, splitForSpilling, splitStackInterval, splitWhenPartialRegisterAvailable

Methods inherited from class com.oracle.graal.lir.alloc.lsra.IntervalWalker

removeFromList, walkBefore, walkTo

Methods inherited from class java.lang.Object

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

Constructor Detail

OptimizingLinearScanWalker

OptimizingLinearScanWalker(LinearScan allocator,
                           Interval unhandledFixedFirst,
                           Interval unhandledAnyFirst)

Method Detail

handleSpillSlot

protected void handleSpillSlot(Interval interval)

Description copied from class: LinearScanWalker

This is called for every interval that is assigned to a stack slot.

Overrides:

handleSpillSlot in class LinearScanWalker

printRegisterBindingList

private static void printRegisterBindingList(Interval.RegisterBindingLists list,
                                             Interval.RegisterBinding binding)

walk

void walk()

Overrides:

walk in class IntervalWalker

optimizeBlock

private void optimizeBlock(AbstractBlockBase<?> block)

optimize

private boolean optimize(int currentPos,
                         AbstractBlockBase<?> currentBlock,
                         Interval currentInterval,
                         Interval.RegisterBinding binding)

splitRegisterInterval

private void splitRegisterInterval(Interval interval,
                                   Register reg)