com.oracle.graal.replacements.nodes

Class BasicArrayCopyNode

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.replacements.nodes.BasicArrayCopyNode

All Implemented Interfaces:

NodeInterface, DeoptimizingNode, DeoptimizingNode.DeoptDuring, MemoryAccess, MemoryCheckpoint, MemoryCheckpoint.Single, MemoryNode, Lowerable, NodeWithState, Virtualizable, StateSplit, Cloneable, Formattable, KindProvider

Direct Known Subclasses:

ArrayCopyNode, ArrayCopySlowPathNode

public class BasicArrayCopyNode
extends AbstractMemoryCheckpoint
implements Virtualizable, MemoryCheckpoint.Single, MemoryAccess, Lowerable, DeoptimizingNode.DeoptDuring

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
protected int	bci
protected ValueNode	dest
protected ValueNode	destPos
protected Kind	elementKind
protected MemoryNode	lastLocationAccess
protected ValueNode	length
protected ValueNode	src
protected ValueNode	srcPos
(package private) FrameState	stateDuring
static NodeClass<BasicArrayCopyNode>	TYPE

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
BasicArrayCopyNode(NodeClass<? extends AbstractMemoryCheckpoint> type, ValueNode src, ValueNode srcPos, ValueNode dest, ValueNode destPos, ValueNode length, Kind elementKind)
BasicArrayCopyNode(NodeClass<? extends AbstractMemoryCheckpoint> type, ValueNode src, ValueNode srcPos, ValueNode dest, ValueNode destPos, ValueNode length, Kind elementKind, int bci)

Method Summary

Modifier and Type	Method and Description
boolean	canDeoptimize() Determines if this node needs deoptimization information.
private static boolean	checkBounds(int position, int length, VirtualObjectNode virtualObject)
private static boolean	checkEntryTypes(int srcPos, int length, VirtualObjectNode src, ResolvedJavaType destComponentType, VirtualizerTool tool)
void	computeStateDuring(FrameState currentStateAfter) Compute the FrameState describing the program state during the execution of this node from an input FrameState describing the program state after finishing the execution of this node.
int	getBci()
ValueNode	getDestination()
ValueNode	getDestinationPosition()
Kind	getElementKind()
MemoryNode	getLastLocationAccess()
ValueNode	getLength()
LocationIdentity	getLocationIdentity() This method is used to determine which memory location is killed by this node.
ValueNode	getSource()
ValueNode	getSourcePosition()
boolean	isExact()
void	lower(LoweringTool tool) Expand this node into lower level nodes expressing the same semantics.
void	setLastLocationAccess(MemoryNode lla)
void	setStateDuring(FrameState stateDuring) Sets the FrameState describing the program state during the execution of this node.
FrameState	stateDuring()
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.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, 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.memory.MemoryCheckpoint

asNode

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<BasicArrayCopyNode> TYPE

src

protected ValueNode src

srcPos

protected ValueNode srcPos

dest

protected ValueNode dest

destPos

protected ValueNode destPos

length

protected ValueNode length

stateDuring

FrameState stateDuring

lastLocationAccess

protected MemoryNode lastLocationAccess

elementKind

protected Kind elementKind

bci

protected int bci

Constructor Detail

BasicArrayCopyNode

public BasicArrayCopyNode(NodeClass<? extends AbstractMemoryCheckpoint> type,
                          ValueNode src,
                          ValueNode srcPos,
                          ValueNode dest,
                          ValueNode destPos,
                          ValueNode length,
                          Kind elementKind,
                          int bci)

BasicArrayCopyNode

public BasicArrayCopyNode(NodeClass<? extends AbstractMemoryCheckpoint> type,
                          ValueNode src,
                          ValueNode srcPos,
                          ValueNode dest,
                          ValueNode destPos,
                          ValueNode length,
                          Kind elementKind)

Method Detail

getSource

public ValueNode getSource()

getSourcePosition

public ValueNode getSourcePosition()

getDestination

public ValueNode getDestination()

getDestinationPosition

public ValueNode getDestinationPosition()

getLength

public ValueNode getLength()

getBci

public int getBci()

getElementKind

public Kind getElementKind()

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 MemoryAccess

Specified by:

getLocationIdentity in interface MemoryCheckpoint.Single

Returns:

the identity of the location killed by this node.

getLastLocationAccess

public MemoryNode getLastLocationAccess()

Specified by:

getLastLocationAccess in interface MemoryAccess

setLastLocationAccess

public void setLastLocationAccess(MemoryNode lla)

Specified by:

setLastLocationAccess in interface MemoryAccess

Parameters:

lla - the MemoryNode that represents the last kill of the location

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

checkBounds

private static boolean checkBounds(int position,
                                   int length,
                                   VirtualObjectNode virtualObject)

checkEntryTypes

private static boolean checkEntryTypes(int srcPos,
                                       int length,
                                       VirtualObjectNode src,
                                       ResolvedJavaType destComponentType,
                                       VirtualizerTool tool)

isExact

public boolean isExact()

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

canDeoptimize

public boolean canDeoptimize()

Description copied from interface: DeoptimizingNode

Determines if this node needs deoptimization information.

Specified by:

canDeoptimize in interface DeoptimizingNode

stateDuring

public FrameState stateDuring()

Specified by:

stateDuring in interface DeoptimizingNode.DeoptDuring

setStateDuring

public void setStateDuring(FrameState stateDuring)

Description copied from interface: DeoptimizingNode.DeoptDuring

Sets the FrameState describing the program state during the execution of this node.

Specified by:

setStateDuring in interface DeoptimizingNode.DeoptDuring

computeStateDuring

public void computeStateDuring(FrameState currentStateAfter)

Description copied from interface: DeoptimizingNode.DeoptDuring

Compute the FrameState describing the program state during the execution of this node from an input FrameState describing the program state after finishing the execution of this node.

Specified by:

computeStateDuring in interface DeoptimizingNode.DeoptDuring