com.oracle.graal.phases.common

Class FrameStateAssignmentPhase

java.lang.Object

com.oracle.graal.phases.BasePhase<Object>

com.oracle.graal.phases.Phase

com.oracle.graal.phases.common.FrameStateAssignmentPhase

public class FrameStateAssignmentPhase
extends Phase

This phase transfers FrameState nodes from StateSplit nodes to DeoptimizingNodes. This allow to enter the AFTER_FSA stage of the graph where no new node that may cause deoptimization can be introduced anymore.

This Phase processes the graph in post order, assigning the FrameState from the last StateSplit node to DeoptimizingNodes.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
private static class	FrameStateAssignmentPhase.FrameStateAssignmentClosure

Field Summary

Fields inherited from class com.oracle.graal.phases.BasePhase

BEFORE_PHASE_DUMP_LEVEL, PHASE_DUMP_LEVEL

Constructor Summary

Constructors

Constructor and Description
FrameStateAssignmentPhase()

Method Summary

Modifier and Type	Method and Description
private static boolean	checkFixedDeopts(StructuredGraph graph)
protected void	run(StructuredGraph graph)
private static FrameState	singleFrameState(List<FrameState> states)

Methods inherited from class com.oracle.graal.phases.Phase

apply, apply, run

Methods inherited from class com.oracle.graal.phases.BasePhase

apply, apply, createName, getName

Methods inherited from class java.lang.Object

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

Constructor Detail

FrameStateAssignmentPhase

public FrameStateAssignmentPhase()

Method Detail

run

protected void run(StructuredGraph graph)

Specified by:

run in class Phase

checkFixedDeopts

private static boolean checkFixedDeopts(StructuredGraph graph)

singleFrameState

private static FrameState singleFrameState(List<FrameState> states)