com.oracle.graal.nodes.java

Class MonitorExitNode

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.AbstractStateSplit

com.oracle.graal.nodes.memory.AbstractMemoryCheckpoint

com.oracle.graal.nodes.java.AccessMonitorNode

com.oracle.graal.nodes.java.MonitorExitNode

All Implemented Interfaces:

IterableNodeType, NodeInterface, Simplifiable, DeoptimizingNode, DeoptimizingNode.DeoptAfter, DeoptimizingNode.DeoptBefore, MonitorExit, MemoryCheckpoint, MemoryCheckpoint.Single, MemoryNode, Lowerable, NodeWithState, Virtualizable, StateSplit, Cloneable, Formattable, KindProvider

public final class MonitorExitNode
extends AccessMonitorNode
implements Virtualizable, Simplifiable, Lowerable, IterableNodeType, MonitorExit, MemoryCheckpoint.Single

The MonitorExitNode represents a monitor release. If it is the release of the monitor of a synchronized method, then the return value of the method will be referenced, so that it will be materialized before releasing the monitor.

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.nodes.memory.MemoryCheckpoint

MemoryCheckpoint.Multi, MemoryCheckpoint.Single, MemoryCheckpoint.TypeAssertion

Nested classes/interfaces inherited from interface com.oracle.graal.nodes.DeoptimizingNode

DeoptimizingNode.DeoptAfter, DeoptimizingNode.DeoptBefore, DeoptimizingNode.DeoptDuring

Field Summary

Fields

Modifier and Type	Field and Description
(package private) ValueNode	escapedReturnValue
static NodeClass<MonitorExitNode>	TYPE

Fields inherited from class com.oracle.graal.nodes.java.AccessMonitorNode

monitorId, object, stateBefore

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

stateAfter

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
MonitorExitNode(ValueNode object, MonitorIdNode monitorId, ValueNode escapedReturnValue)

Method Summary

Modifier and Type	Method and Description
ValueNode	getEscapedReturnValue()
LocationIdentity	getLocationIdentity() This method is used to determine which memory location is killed by this node.
void	lower(LoweringTool tool) Expand this node into lower level nodes expressing the same semantics.
void	setEscapedReturnValue(ValueNode x)
void	simplify(SimplifierTool tool) Must be overridden by subclasses that implement Simplifiable.
void	virtualize(VirtualizerTool tool) A node class can implement this method to convey information about what its effect would be if some of its inputs were virtualized.

Methods inherited from class com.oracle.graal.nodes.java.AccessMonitorNode

canDeoptimize, getMonitorId, object, setStateBefore, stateBefore

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

hasSideEffect, setStateAfter, stateAfter

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, 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

Methods inherited from interface com.oracle.graal.nodes.StateSplit

hasSideEffect, setStateAfter, stateAfter

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

states

Field Detail

TYPE

public static final NodeClass<MonitorExitNode> TYPE

escapedReturnValue

ValueNode escapedReturnValue

Constructor Detail

MonitorExitNode

public MonitorExitNode(ValueNode object,
                       MonitorIdNode monitorId,
                       ValueNode escapedReturnValue)

Method Detail

getEscapedReturnValue

public ValueNode getEscapedReturnValue()

setEscapedReturnValue

public void setEscapedReturnValue(ValueNode x)

getLocationIdentity

public LocationIdentity getLocationIdentity()

Description copied from interface: MemoryCheckpoint.Single

This method is used to determine which memory location is killed by this node. Returning the special value LocationIdentity.any() will kill all memory locations.

Specified by:

getLocationIdentity in interface MemoryCheckpoint.Single

Returns:

the identity of the location killed by this node.

simplify

public void simplify(SimplifierTool tool)

Description copied from class: Node

Must be overridden by subclasses that implement Simplifiable. The implementation in Node exists to obviate the need to cast a node before invoking Simplifiable.simplify(SimplifierTool).

Specified by:

simplify in interface Simplifiable

Overrides:

simplify in class Node

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

virtualize

public void virtualize(VirtualizerTool tool)

Description copied from interface: Virtualizable

A node class can implement this method to convey information about what its effect would be if some of its inputs were virtualized. All modifications must be made through the supplied tool, and not directly on the node, because by the time this method is called the virtualized/non-virtualized state is still speculative and might not hold because of loops, etc.

Specified by:

virtualize in interface Virtualizable

Parameters:

tool - the tool used to describe the effects of this node