com.oracle.graal.nodes

Class LoopEndNode

java.lang.Object

com.oracle.graal.graph.Node

com.oracle.graal.nodes.ValueNode

com.oracle.graal.nodes.FixedNode

com.oracle.graal.nodes.AbstractEndNode

com.oracle.graal.nodes.LoopEndNode

All Implemented Interfaces:

IterableNodeType, LIRLowerable, Cloneable, Formattable, KindProvider

public final class LoopEndNode
extends AbstractEndNode

LoopEnd nodes represent a loop back-edge. When a LoopEnd is reached, execution continues at the loop header.

Nested Class Summary

Nested classes/interfaces inherited from class com.oracle.graal.graph.Node

Node.ConstantNodeParameter, Node.InjectedNodeParameter, Node.Input, Node.NodeIntrinsic, Node.OptionalInput, Node.Successor, Node.ValueNumberable

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	canSafepoint
protected int	endIndex
(package private) LoopBeginNode	loopBegin
static NodeClass<LoopEndNode>	TYPE

Fields inherited from class com.oracle.graal.nodes.ValueNode

stamp

Fields inherited from class com.oracle.graal.graph.Node

NODE_LIST, NOT_ITERABLE, USE_UNSAFE_TO_CLONE, WithAllEdges, WithNoEdges, WithOnlyInputEdges, WithOnlySucessorEdges

Constructor Summary

Constructors

Constructor and Description
LoopEndNode(LoopBeginNode begin)

Method Summary

Modifier and Type	Method and Description
boolean	canSafepoint()
Iterable<? extends Node>	cfgSuccessors() Returns an iterator that will provide all control-flow successors of this node.
void	disableSafepoint()
(package private) int	endIndex() Returns the index of this loop end amongst its LoopBeginNode's loop ends. Since a LoopBeginNode also has forward ends, this is not the index into PhiNode values at the loop begin.
void	generate(NodeLIRBuilderTool gen)
LoopBeginNode	loopBegin()
AbstractMergeNode	merge()
(package private) void	setEndIndex(int idx)
void	setLoopBegin(LoopBeginNode x)
boolean	verify()

Methods inherited from class com.oracle.graal.nodes.FixedNode

asNode

Methods inherited from class com.oracle.graal.nodes.ValueNode

asConstant, asJavaConstant, getKind, graph, inferStamp, isAllowedUsageType, isConstant, isConstantPredicate, isNullConstant, setStamp, stamp, updateStamp

Methods inherited from class com.oracle.graal.graph.Node

acceptInputs, acceptSuccessors, afterClone, assertFalse, assertTrue, cfgPredecessors, clearInputs, clearSuccessors, copyWithInputs, copyWithInputs, equals, fail, formatTo, getDebugProperties, getDebugProperties, getId, getNodeClass, getUsageAt, getUsageCount, hashCode, hasNoUsages, hasUsages, inputs, isAlive, isDeleted, markDeleted, modCount, newIdentityMap, newIdentityMap, newIdentityMap, newMap, newMap, newMap, newSet, newSet, predecessor, pushInputs, removeUsage, replaceAndDelete, replaceAtMatchingUsages, replaceAtPredecessor, replaceAtUsages, replaceAtUsages, replaceAtUsages, replaceFirstInput, replaceFirstSuccessor, safeDelete, simplify, successors, toString, toString, updatePredecessor, updateUsages, updateUsagesInterface, usages, valueEquals, verifyEdges, verifyInputs

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

TYPE

public static final NodeClass<LoopEndNode> TYPE

loopBegin

LoopBeginNode loopBegin

canSafepoint

protected boolean canSafepoint

endIndex

protected int endIndex

Constructor Detail

LoopEndNode

public LoopEndNode(LoopBeginNode begin)

Method Detail

merge

public AbstractMergeNode merge()

Overrides:

merge in class AbstractEndNode

loopBegin

public LoopBeginNode loopBegin()

setLoopBegin

public void setLoopBegin(LoopBeginNode x)

disableSafepoint

public void disableSafepoint()

canSafepoint

public boolean canSafepoint()

generate

public void generate(NodeLIRBuilderTool gen)

Specified by:

generate in interface LIRLowerable

Overrides:

generate in class AbstractEndNode

verify

public boolean verify()

Overrides:

verify in class AbstractEndNode

endIndex

int endIndex()

Returns the index of this loop end amongst its LoopBeginNode's loop ends.
Since a LoopBeginNode also has forward ends, this is not the index into PhiNode values at the loop begin. Use LoopBeginNode.phiPredecessorIndex(AbstractEndNode) for this purpose.

setEndIndex

void setEndIndex(int idx)

cfgSuccessors

public Iterable<? extends Node> cfgSuccessors()

Description copied from class: Node

Returns an iterator that will provide all control-flow successors of this node. Normally this will be the contents of all fields marked as NodeSuccessor, but some node classes (like EndNode) may return different nodes. Note that the iterator may generate null values if the fields contain them.

Overrides:

cfgSuccessors in class AbstractEndNode