com.oracle.graal.nodes

Class ValuePhiNode

java.lang.Object

com.oracle.graal.graph.Node

com.oracle.graal.nodes.ValueNode

com.oracle.graal.nodes.calc.FloatingNode

com.oracle.graal.nodes.PhiNode

com.oracle.graal.nodes.ValuePhiNode

All Implemented Interfaces:

Node.ValueNumberable, Simplifiable, ArrayLengthProvider, Cloneable, Formattable, KindProvider

public class ValuePhiNode
extends PhiNode
implements ArrayLengthProvider

Value PhiNodes merge data flow values at control flow merges.

Nested Class Summary

Nested classes/interfaces inherited from class com.oracle.graal.nodes.PhiNode

PhiNode.MultipleValuesNode

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
static NodeClass<ValuePhiNode>	TYPE
protected NodeInputList<ValueNode>	values

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

merge, MULTIPLE_VALUES

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

Modifier	Constructor and Description
protected	ValuePhiNode(NodeClass<? extends ValuePhiNode> c, Stamp stamp, AbstractMergeNode merge)
	ValuePhiNode(Stamp stamp, AbstractMergeNode merge)
	ValuePhiNode(Stamp stamp, AbstractMergeNode merge, ValueNode[] values)

Method Summary

Modifier and Type	Method and Description
boolean	inferStamp() This method can be overridden by subclasses of ValueNode if they need to recompute their stamp if their inputs change.
ValueNode	length()
NodeInputList<ValueNode>	values()

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

addInput, clearValues, firstValue, initializeValueAt, isLoopPhi, merge, removeInput, setMerge, setValueAt, setValueAt, simplify, singleBackValue, singleValue, toString, valueAt, valueAt, valueCount, verify

Methods inherited from class com.oracle.graal.nodes.calc.FloatingNode

asNode

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

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

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

acceptInputs, acceptSuccessors, afterClone, assertFalse, assertTrue, cfgPredecessors, cfgSuccessors, 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, successors, 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<ValuePhiNode> TYPE

values

protected NodeInputList<ValueNode> values

Constructor Detail

ValuePhiNode

public ValuePhiNode(Stamp stamp,
                    AbstractMergeNode merge)

ValuePhiNode

protected ValuePhiNode(NodeClass<? extends ValuePhiNode> c,
                       Stamp stamp,
                       AbstractMergeNode merge)

ValuePhiNode

public ValuePhiNode(Stamp stamp,
                    AbstractMergeNode merge,
                    ValueNode[] values)

Method Detail

values

public NodeInputList<ValueNode> values()

Specified by:

values in class PhiNode

inferStamp

public boolean inferStamp()

Description copied from class: ValueNode

This method can be overridden by subclasses of ValueNode if they need to recompute their stamp if their inputs change. A typical implementation will compute the stamp and pass it to ValueNode.updateStamp(Stamp), whose return value can be used as the result of this method.

Overrides:

inferStamp in class ValueNode

Returns:

true if the stamp has changed, false otherwise.

length

public ValueNode length()

Specified by:

length in interface ArrayLengthProvider

Returns:

the length of the array described by this node, or null if it is not available