com.oracle.graal.nodes.extended

Class LoadMethodNode

java.lang.Object

com.oracle.graal.graph.Node

com.oracle.graal.nodes.ValueNode

com.oracle.graal.nodes.FixedNode

com.oracle.graal.nodes.FixedWithNextNode

com.oracle.graal.nodes.extended.LoadMethodNode

All Implemented Interfaces:

NodeInterface, Canonicalizable, Lowerable, Cloneable, Formattable, KindProvider

public final class LoadMethodNode
extends FixedWithNextNode
implements Lowerable, Canonicalizable

Loads a method from the virtual method table of a given hub.

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

Nested classes/interfaces inherited from interface com.oracle.graal.graph.spi.Canonicalizable

Canonicalizable.Binary<T extends Node>, Canonicalizable.BinaryCommutative<T extends Node>, Canonicalizable.Unary<T extends Node>

Field Summary

Fields

Modifier and Type	Field and Description
(package private) ValueNode	hub
protected ResolvedJavaMethod	method
protected ResolvedJavaType	receiverType
static NodeClass<LoadMethodNode>	TYPE

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

next

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
LoadMethodNode(Stamp stamp, ResolvedJavaMethod method, ResolvedJavaType receiverType, ValueNode hub)

Method Summary

Modifier and Type	Method and Description
Node	canonical(CanonicalizerTool tool) Implementations of this method can provide local optimizations like constant folding and strength reduction.
ValueNode	getHub()
ResolvedJavaMethod	getMethod()
ResolvedJavaType	getReceiverType()
void	lower(LoweringTool tool) Expand this node into lower level nodes expressing the same semantics.
private Node	resolveExactMethod(CanonicalizerTool tool, ResolvedJavaType type) Find the method which would be loaded.

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

asNode, next, setNext

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

verify

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, 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, 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

Methods inherited from interface com.oracle.graal.nodes.spi.Lowerable

asNode

Field Detail

TYPE

public static final NodeClass<LoadMethodNode> TYPE

hub

ValueNode hub

method

protected final ResolvedJavaMethod method

receiverType

protected final ResolvedJavaType receiverType

Constructor Detail

LoadMethodNode

public LoadMethodNode(Stamp stamp,
                      ResolvedJavaMethod method,
                      ResolvedJavaType receiverType,
                      ValueNode hub)

Method Detail

getHub

public ValueNode getHub()

lower

public void lower(LoweringTool tool)

Description copied from interface: Lowerable

Expand this node into lower level nodes expressing the same semantics. If the introduced nodes are themselves lowerable, they should be recursively lowered as part of this call.

Specified by:

lower in interface Lowerable

canonical

public Node canonical(CanonicalizerTool tool)

Description copied from interface: Canonicalizable

Implementations of this method can provide local optimizations like constant folding and strength reduction. Implementations should look at the properties and inputs of the current node and determine if there is a more optimal and always semantically correct replacement.
The return value determines the effect that the canonicalization will have:

• Returning an pre-existing node will replace the current node with the given one.
• Returning a newly created node (that was not yet added to the graph) will replace the current node with the given one, after adding it to the graph. If both the replacement and the replacee are anchored in control flow (fixed nodes), the replacement will be added to the control flow. It is invalid to replace a non-fixed node with a newly created fixed node (because its placement in the control flow cannot be determined without scheduling).
• Returning null will delete the current node and replace it with null at all usages. Note that it is not necessary to delete floating nodes that have no more usages this way - they will be deleted automatically.

Specified by:

canonical in interface Canonicalizable

Parameters:

tool - provides access to runtime interfaces like MetaAccessProvider

resolveExactMethod

private Node resolveExactMethod(CanonicalizerTool tool,
                                ResolvedJavaType type)

Find the method which would be loaded.

Parameters:

tool -

type - the exact type of object being loaded from

Returns:

the method which would be invoked for type or null if it doesn't implement the method

getMethod

public ResolvedJavaMethod getMethod()

getReceiverType

public ResolvedJavaType getReceiverType()