LoopExplosionPlugin.LoopExplosionKind

java.lang.Object
- java.lang.Enum<LoopExplosionPlugin.LoopExplosionKind>
- - org.graalvm.compiler.nodes.graphbuilderconf.LoopExplosionPlugin.LoopExplosionKind

All Implemented Interfaces:

Serializable, Comparable<LoopExplosionPlugin.LoopExplosionKind>

Enclosing interface:

LoopExplosionPlugin
```
public static enum LoopExplosionPlugin.LoopExplosionKind
extends Enum<LoopExplosionPlugin.LoopExplosionKind>
```

Enum Constant Summary

Enum Constants
Enum Constant and Description
`FULL_EXPLODE` Fully explode all loops.
`FULL_EXPLODE_UNTIL_RETURN` Like `LoopExplosionPlugin.LoopExplosionKind.FULL_EXPLODE`, but in addition explosion does not stop at loop exits.
`FULL_UNROLL` Fully unroll all loops.
`FULL_UNROLL_UNTIL_RETURN` Like `LoopExplosionPlugin.LoopExplosionKind.FULL_UNROLL`, but in addition loop unrolling duplicates loop exits in every iteration instead of merging them.
`MERGE_EXPLODE` like `LoopExplosionPlugin.LoopExplosionKind.FULL_EXPLODE`, but copies of the loop body that have the exact same state (all local variables have the same value) are merged.
`NONE` No loop explosion.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`boolean`	`duplicateLoopEnds()`
`boolean`	`duplicateLoopExits()`
`boolean`	`isNoExplosion()`
`boolean`	`mergeLoops()`
`boolean`	`unrollLoops()`
`boolean`	`useExplosion()`
`static LoopExplosionPlugin.LoopExplosionKind`	`valueOf(String name)` Returns the enum constant of this type with the specified name.
`static LoopExplosionPlugin.LoopExplosionKind[]`	`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
  - NONE
```
public static final LoopExplosionPlugin.LoopExplosionKind NONE
```
    No loop explosion.
  - FULL_UNROLL
```
public static final LoopExplosionPlugin.LoopExplosionKind FULL_UNROLL
```
    Fully unroll all loops. The loops must have a known finite number of iterations. If a loop has multiple loop ends, they are merged so that the subsequent loop iteration is processed only once. For example, a loop with 4 iterations and 2 loop ends leads to 1+1+1+1 = 4 copies of the loop body.
  - FULL_UNROLL_UNTIL_RETURN
```
public static final LoopExplosionPlugin.LoopExplosionKind FULL_UNROLL_UNTIL_RETURN
```
    Like LoopExplosionPlugin.LoopExplosionKind.FULL_UNROLL, but in addition loop unrolling duplicates loop exits in every iteration instead of merging them. Code after a loop exit is duplicated for every loop exit and every loop iteration. For example, a loop with 4 iterations and 2 loop exits (exit1 and exit2, where exit1 is an early return inside a loop) leads to 4 copies of the loop body and 4 copies of exit1 and 1 copy if exit2. After each exit all code until a return is duplicated per iteration. Beware of break statements inside loops since they cause additional loop exits leading to code duplication along exit2.
  - FULL_EXPLODE
```
public static final LoopExplosionPlugin.LoopExplosionKind FULL_EXPLODE
```
    Fully explode all loops. The loops must have a known finite number of iterations. If a loop has multiple loop ends, they are not merged so that subsequent loop iterations are processed multiple times. For example, a loop with 4 iterations and 2 loop ends leads to 1+2+4+8 = 15 copies of the loop body.
  - FULL_EXPLODE_UNTIL_RETURN
```
public static final LoopExplosionPlugin.LoopExplosionKind FULL_EXPLODE_UNTIL_RETURN
```
    Like LoopExplosionPlugin.LoopExplosionKind.FULL_EXPLODE, but in addition explosion does not stop at loop exits. Code after the loop is duplicated for every loop exit of every loop iteration. For example, a loop with 4 iterations and 2 loop exits leads to 4 * 2 = 8 copies of the code after the loop.
  - MERGE_EXPLODE
```
public static final LoopExplosionPlugin.LoopExplosionKind MERGE_EXPLODE
```
    like LoopExplosionPlugin.LoopExplosionKind.FULL_EXPLODE, but copies of the loop body that have the exact same state (all local variables have the same value) are merged. This reduces the number of copies necessary, but can introduce loops again. This kind is useful for bytecode interpreter loops.
- Method Detail
  - values
```
public static LoopExplosionPlugin.LoopExplosionKind[] values()
```
    Returns:
    
    an array containing the constants of this enum type, in the order they are declared
  - valueOf
```
public static LoopExplosionPlugin.LoopExplosionKind 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
  - unrollLoops
```
public boolean unrollLoops()
```
  - duplicateLoopExits
```
public boolean duplicateLoopExits()
```
  - duplicateLoopEnds
```
public boolean duplicateLoopEnds()
```
  - mergeLoops
```
public boolean mergeLoops()
```
  - useExplosion
```
public boolean useExplosion()
```
  - isNoExplosion
```
public boolean isNoExplosion()
```

Enum LoopExplosionPlugin.LoopExplosionKind

Enum Constant Summary

Method Summary

Methods inherited from class java.lang.Enum

Methods inherited from class java.lang.Object

Enum Constant Detail

NONE

FULL_UNROLL

FULL_UNROLL_UNTIL_RETURN

FULL_EXPLODE

FULL_EXPLODE_UNTIL_RETURN

MERGE_EXPLODE

Method Detail

values

valueOf

unrollLoops

duplicateLoopExits

duplicateLoopEnds

mergeLoops

useExplosion

isNoExplosion