com.oracle.graal.hotspot.sparc

Class SPARCHotSpotBackend.LIRDependencyAccumulator

java.lang.Object

com.oracle.graal.hotspot.sparc.SPARCHotSpotBackend.LIRDependencyAccumulator

Enclosing class:

SPARCHotSpotBackend

private static class SPARCHotSpotBackend.LIRDependencyAccumulator
extends Object

Accumulates inputs/outputs/temp/alive in a set along we walk back the LIRInstructions and detects, if there is any overlap. In this way LIRInstructions can be detected, which can be moved nearer to the DelayedControlTransfer instruction.

Field Summary

Fields

Modifier and Type	Field and Description
private Set<Object>	inputs
private boolean	overlap
private InstructionValueConsumer	valueConsumer

Constructor Summary

Constructors

Modifier	Constructor and Description
private	LIRDependencyAccumulator()

Method Summary

Modifier and Type	Method and Description
boolean	add(LIRInstruction inst) Adds the inputs of lir instruction to the accumulator and returns, true if there was any overlap of parameters.
void	start(LIRInstruction initial)

Methods inherited from class java.lang.Object

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

Field Detail

inputs

private final Set<Object> inputs

overlap

private boolean overlap

valueConsumer

private final InstructionValueConsumer valueConsumer

Constructor Detail

LIRDependencyAccumulator

private LIRDependencyAccumulator()

Method Detail

start

public void start(LIRInstruction initial)

add

public boolean add(LIRInstruction inst)

Adds the inputs of lir instruction to the accumulator and returns, true if there was any overlap of parameters.

Parameters:

inst -

Returns:

true if an overlap was found