org.graalvm.compiler.nodes

Enum GraphDecoder.LoopScopeTrigger

java.lang.Object

java.lang.Enum<GraphDecoder.LoopScopeTrigger>

org.graalvm.compiler.nodes.GraphDecoder.LoopScopeTrigger

All Implemented Interfaces:

Serializable, Comparable<GraphDecoder.LoopScopeTrigger>

Enclosing class:

GraphDecoder

public static enum GraphDecoder.LoopScopeTrigger
extends Enum<GraphDecoder.LoopScopeTrigger>

Marker to distinguish the reasons for the creation of a loop scope during partial evaluation.

Enum Constant Summary

Enum Constants

Enum Constant and Description
LOOP_BEGIN_UNROLLING Loop scope created for the next iteration of a loop if unrolling is enabled in the loop explosion mode.
LOOP_END_DUPLICATION Loop scope created for the next iteration of a loop along a particular loop end node if LoopExplosionPlugin.LoopExplosionKind.duplicateLoopEnds() is enabled and loops are exploded.
LOOP_EXIT_DUPLICATION Loop scope created for a loop exit node if LoopExplosionPlugin.LoopExplosionKind.duplicateLoopExits() is enabled, i.e., code after a loop exit is duplicated per loop exit node.
START Start loop scope: creation triggered manually at the beginning of partial evaluation.

Method Summary

Modifier and Type	Method and Description
static GraphDecoder.LoopScopeTrigger	valueOf(String name) Returns the enum constant of this type with the specified name.
static GraphDecoder.LoopScopeTrigger[]	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

START

public static final GraphDecoder.LoopScopeTrigger START

Start loop scope: creation triggered manually at the beginning of partial evaluation.

LOOP_BEGIN_UNROLLING

public static final GraphDecoder.LoopScopeTrigger LOOP_BEGIN_UNROLLING

Loop scope created for the next iteration of a loop if unrolling is enabled in the loop explosion mode. See LoopExplosionPlugin.LoopExplosionKind.unrollLoops() for details. Loop unrolling will merge loop end nodes for each iteration of the original loop.

LOOP_END_DUPLICATION

public static final GraphDecoder.LoopScopeTrigger LOOP_END_DUPLICATION

Loop scope created for the next iteration of a loop along a particular loop end node if LoopExplosionPlugin.LoopExplosionKind.duplicateLoopEnds() is enabled and loops are exploded. This means for every loop end we duplicate the next loop iteration of the original loop.

LOOP_EXIT_DUPLICATION

public static final GraphDecoder.LoopScopeTrigger LOOP_EXIT_DUPLICATION

Loop scope created for a loop exit node if LoopExplosionPlugin.LoopExplosionKind.duplicateLoopExits() is enabled, i.e., code after a loop exit is duplicated per loop exit node. Special case nested loops: For compilation units with nested loops where inner loops continue loops at a level n -1 the partial evaluation algorithm will merge outer loops to avoid loop explosion along loop end nodes (which would be the same as GraphDecoder.LoopScopeTrigger.LOOP_END_DUPLICATION.

Method Detail

values

public static GraphDecoder.LoopScopeTrigger[] values()

Returns:

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

valueOf

public static GraphDecoder.LoopScopeTrigger valueOf(String name)

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