com.oracle.graal.nodes

Enum StructuredGraph.GuardsStage

java.lang.Object

java.lang.Enum<StructuredGraph.GuardsStage>

com.oracle.graal.nodes.StructuredGraph.GuardsStage

All Implemented Interfaces:

Serializable, Comparable<StructuredGraph.GuardsStage>

Enclosing class:

StructuredGraph

public static enum StructuredGraph.GuardsStage
extends Enum<StructuredGraph.GuardsStage>

The different stages of the compilation of a Graph regarding the status of guards, deoptimizations and framestates. The stage of a graph progresses monotonously.

Enum Constant Summary

Enum Constants

Enum Constant and Description
AFTER_FSA During this stage, all DeoptimizingNodes must be fixed.
FIXED_DEOPTS During this stage, all DeoptimizingNodes must be fixed but new DeoptimizingNodes can still be introduced.
FLOATING_GUARDS During this stage, there can be floating DeoptimizingNode such as GuardNodes.

Method Summary

Modifier and Type	Method and Description
boolean	allowsFloatingGuards()
boolean	areDeoptsFixed()
boolean	areFrameStatesAtDeopts()
boolean	areFrameStatesAtSideEffects()
static StructuredGraph.GuardsStage	valueOf(String name) Returns the enum constant of this type with the specified name.
static StructuredGraph.GuardsStage[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

FLOATING_GUARDS

public static final StructuredGraph.GuardsStage FLOATING_GUARDS

During this stage, there can be floating DeoptimizingNode such as GuardNodes. New DeoptimizingNodes can be introduced without constraints. FrameState nodes are associated with StateSplit nodes.

FIXED_DEOPTS

public static final StructuredGraph.GuardsStage FIXED_DEOPTS

During this stage, all DeoptimizingNodes must be fixed but new DeoptimizingNodes can still be introduced. FrameState nodes are still associated with StateSplit nodes.

AFTER_FSA

public static final StructuredGraph.GuardsStage AFTER_FSA

During this stage, all DeoptimizingNodes must be fixed. New DeoptimizingNodes can not be introduced any more. FrameState nodes are now associated with DeoptimizingNode nodes.

Method Detail

values

public static StructuredGraph.GuardsStage[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (StructuredGraph.GuardsStage c : StructuredGraph.GuardsStage.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static StructuredGraph.GuardsStage valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null

allowsFloatingGuards

public boolean allowsFloatingGuards()

areFrameStatesAtDeopts

public boolean areFrameStatesAtDeopts()

areFrameStatesAtSideEffects

public boolean areFrameStatesAtSideEffects()

areDeoptsFixed

public boolean areDeoptsFixed()