com.oracle.graal.nodes.memory

Class WriteNode

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.DeoptimizingFixedWithNextNode

com.oracle.graal.nodes.memory.FixedAccessNode

com.oracle.graal.nodes.memory.AbstractWriteNode

com.oracle.graal.nodes.memory.WriteNode

All Implemented Interfaces:

NodeInterface, Simplifiable, DeoptimizingNode, DeoptimizingNode.DeoptBefore, GuardedNode, GuardingNode, Access, HeapAccess, MemoryAccess, MemoryCheckpoint, MemoryCheckpoint.Single, MemoryNode, LIRLowerable, NodeWithState, Virtualizable, StateSplit, Cloneable, Formattable, KindProvider

public final class WriteNode
extends AbstractWriteNode
implements LIRLowerable, Simplifiable, Virtualizable

Writes a given value a memory location.

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.memory.HeapAccess

HeapAccess.BarrierType

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
static NodeClass<WriteNode>	TYPE

Fields inherited from class com.oracle.graal.nodes.memory.AbstractWriteNode

initialization, lastLocationAccess, stateAfter, value

Fields inherited from class com.oracle.graal.nodes.memory.FixedAccessNode

address, barrierType, guard, location, nullCheck

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

stateBefore

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

Modifier	Constructor and Description
	WriteNode(AddressNode address, LocationIdentity location, ValueNode value, HeapAccess.BarrierType barrierType)
	WriteNode(AddressNode address, LocationIdentity location, ValueNode value, HeapAccess.BarrierType barrierType, boolean initialization)
	WriteNode(AddressNode address, LocationIdentity location, ValueNode value, HeapAccess.BarrierType barrierType, GuardingNode guard, boolean initialization)
private	WriteNode(ValueNode address, LocationIdentity location, ValueNode value, HeapAccess.BarrierType barrierType)

Method Summary

Modifier and Type	Method and Description
boolean	canNullCheck()
void	generate(NodeLIRBuilderTool gen)
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.
static void	writeMemory(AddressNode.Address address, LocationIdentity location, Object value, HeapAccess.BarrierType barrierType)

Methods inherited from class com.oracle.graal.nodes.memory.AbstractWriteNode

getLastLocationAccess, hasSideEffect, isAllowedUsageType, isInitialization, setLastLocationAccess, setStateAfter, stateAfter, value

Methods inherited from class com.oracle.graal.nodes.memory.FixedAccessNode

canDeoptimize, getAddress, getBarrierType, getGuard, getLocationIdentity, getNullCheck, setAddress, setGuard, setNullCheck

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

setStateBefore, stateBefore

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, 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.StateSplit

asNode

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

states

Methods inherited from interface com.oracle.graal.nodes.memory.MemoryCheckpoint.Single

getLocationIdentity

Methods inherited from interface com.oracle.graal.nodes.memory.MemoryAccess

getLocationIdentity

Methods inherited from interface com.oracle.graal.nodes.extended.GuardingNode

asNode

Methods inherited from interface com.oracle.graal.nodes.extended.GuardedNode

asNode

Field Detail

TYPE

public static final NodeClass<WriteNode> TYPE

Constructor Detail

WriteNode

private WriteNode(ValueNode address,
                  LocationIdentity location,
                  ValueNode value,
                  HeapAccess.BarrierType barrierType)

WriteNode

public WriteNode(AddressNode address,
                 LocationIdentity location,
                 ValueNode value,
                 HeapAccess.BarrierType barrierType)

WriteNode

public WriteNode(AddressNode address,
                 LocationIdentity location,
                 ValueNode value,
                 HeapAccess.BarrierType barrierType,
                 boolean initialization)

WriteNode

public WriteNode(AddressNode address,
                 LocationIdentity location,
                 ValueNode value,
                 HeapAccess.BarrierType barrierType,
                 GuardingNode guard,
                 boolean initialization)

Method Detail

generate

public void generate(NodeLIRBuilderTool gen)

Specified by:

generate in interface LIRLowerable

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

writeMemory

public static void writeMemory(AddressNode.Address address,
                               LocationIdentity location,
                               Object value,
                               HeapAccess.BarrierType barrierType)

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

canNullCheck

public boolean canNullCheck()

Specified by:

canNullCheck in interface Access