com.oracle.graal.nodes.extended

Class UnsafeLoadNode

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.UnsafeAccessNode

com.oracle.graal.nodes.extended.UnsafeLoadNode

All Implemented Interfaces:

NodeInterface, Canonicalizable, Lowerable, Virtualizable, Cloneable, Formattable, KindProvider

public final class UnsafeLoadNode
extends UnsafeAccessNode
implements Lowerable, Virtualizable

Load of a value from a location specified as an offset relative to an object. No null check is performed before the load.

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) LogicNode	guardingCondition
static NodeClass<UnsafeLoadNode>	TYPE

Fields inherited from class com.oracle.graal.nodes.extended.UnsafeAccessNode

accessKind, locationIdentity, object, offset

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
UnsafeLoadNode(ValueNode object, ValueNode offset, Kind accessKind, LocationIdentity locationIdentity)
UnsafeLoadNode(ValueNode object, ValueNode offset, Kind accessKind, LocationIdentity locationIdentity, LogicNode condition)

Method Summary

Modifier and Type	Method and Description
protected ValueNode	cloneAsArrayAccess(ValueNode location, LocationIdentity identity)
protected ValueNode	cloneAsFieldAccess(ResolvedJavaField field)
LogicNode	getGuardingCondition()
static Object	load(Object object, long offset, Kind kind, LocationIdentity locationIdentity)
void	lower(LoweringTool tool) Expand this node into lower level nodes expressing the same semantics.
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.extended.UnsafeAccessNode

accessKind, canonical, getLocationIdentity, object, offset

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<UnsafeLoadNode> TYPE

guardingCondition

LogicNode guardingCondition

Constructor Detail

UnsafeLoadNode

public UnsafeLoadNode(ValueNode object,
                      ValueNode offset,
                      Kind accessKind,
                      LocationIdentity locationIdentity)

UnsafeLoadNode

public UnsafeLoadNode(ValueNode object,
                      ValueNode offset,
                      Kind accessKind,
                      LocationIdentity locationIdentity,
                      LogicNode condition)

Method Detail

getGuardingCondition

public LogicNode getGuardingCondition()

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

cloneAsFieldAccess

protected ValueNode cloneAsFieldAccess(ResolvedJavaField field)

Specified by:

cloneAsFieldAccess in class UnsafeAccessNode

cloneAsArrayAccess

protected ValueNode cloneAsArrayAccess(ValueNode location,
                                       LocationIdentity identity)

Specified by:

cloneAsArrayAccess in class UnsafeAccessNode

load

public static Object load(Object object,
                          long offset,
                          Kind kind,
                          LocationIdentity locationIdentity)