com.oracle.graal.virtual.phases.ea

Class PEReadEliminationClosure.ReadEliminationMergeProcessor

java.lang.Object

com.oracle.graal.virtual.phases.ea.EffectsClosure.MergeProcessor

com.oracle.graal.virtual.phases.ea.PartialEscapeClosure.MergeProcessor

com.oracle.graal.virtual.phases.ea.PEReadEliminationClosure.ReadEliminationMergeProcessor

Enclosing class:

PEReadEliminationClosure

private class PEReadEliminationClosure.ReadEliminationMergeProcessor
extends PartialEscapeClosure.MergeProcessor

Field Summary

Fields inherited from class com.oracle.graal.virtual.phases.ea.EffectsClosure.MergeProcessor

afterMergeEffects, mergeEffects, newState

Constructor Summary

Constructors

Constructor and Description
ReadEliminationMergeProcessor(Block mergeBlock)

Method Summary

Modifier and Type	Method and Description
protected void	merge(List<PEReadEliminationBlockState> states) Merge all predecessor block states into one block state.
private void	mergeReadCache(List<PEReadEliminationBlockState> states)
private void	mergeReadCachePhi(PhiNode phi, LocationIdentity identity, int index, List<PEReadEliminationBlockState> states)

Methods inherited from class com.oracle.graal.virtual.phases.ea.PartialEscapeClosure.MergeProcessor

getPhi

Methods inherited from class com.oracle.graal.virtual.phases.ea.EffectsClosure.MergeProcessor

commitEnds, createValuePhi, getPhis, getPhiValueAt, getPredecessor, getStateIndex, graph, setPhiInput, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

ReadEliminationMergeProcessor

public ReadEliminationMergeProcessor(Block mergeBlock)

Method Detail

merge

protected void merge(List<PEReadEliminationBlockState> states)

Description copied from class: PartialEscapeClosure.MergeProcessor

Merge all predecessor block states into one block state. This is an iterative process, because merging states can lead to materializations which make previous parts of the merging operation invalid. The merging process is executed until a stable state has been reached. This method needs to be careful to place the effects of the merging operation into the correct blocks.

Overrides:

merge in class PartialEscapeClosure.MergeProcessor

Parameters:

states - the predecessor block states of the merge

mergeReadCache

private void mergeReadCache(List<PEReadEliminationBlockState> states)

mergeReadCachePhi

private void mergeReadCachePhi(PhiNode phi,
                               LocationIdentity identity,
                               int index,
                               List<PEReadEliminationBlockState> states)