com.oracle.graal.hotspot.replacements.arraycopy

Class UnsafeArrayCopyNode

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.extended.ArrayRangeWriteNode

com.oracle.graal.hotspot.replacements.arraycopy.UnsafeArrayCopyNode

All Implemented Interfaces:

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

public final class UnsafeArrayCopyNode
extends ArrayRangeWriteNode
implements Lowerable, MemoryCheckpoint.Single, MemoryAccess

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

Field Summary

Fields

Modifier and Type	Field and Description
(package private) ValueNode	dest
(package private) ValueNode	destPos
protected Kind	elementKind
(package private) MemoryNode	lastLocationAccess
(package private) ValueNode	layoutHelper
(package private) ValueNode	length
(package private) ValueNode	src
(package private) ValueNode	srcPos
static NodeClass<UnsafeArrayCopyNode>	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
UnsafeArrayCopyNode(ValueNode src, ValueNode srcPos, ValueNode dest, ValueNode destPos, ValueNode length, Kind elementKind)
UnsafeArrayCopyNode(ValueNode src, ValueNode srcPos, ValueNode dest, ValueNode destPos, ValueNode length, ValueNode layoutHelper)
UnsafeArrayCopyNode(ValueNode src, ValueNode srcPos, ValueNode dest, ValueNode destPos, ValueNode length, ValueNode layoutHelper, Kind elementKind)

Method Summary

Modifier and Type	Method and Description
void	addSnippetArguments(SnippetTemplate.Arguments args)
static void	arraycopy(Object src, int srcPos, Object dest, int destPos, int length, Kind elementKind)
static void	arraycopyPrimitive(Object src, int srcPos, Object dest, int destPos, int length, int layoutHelper)
ValueNode	getArray() The array that is written to.
Kind	getElementKind()
ValueNode	getIndex() The first modified index.
MemoryNode	getLastLocationAccess()
ValueNode	getLength() The length of the modified range.
LocationIdentity	getLocationIdentity() This method is used to determine which memory location is killed by this node.
boolean	isInitialization() Returns whether this write is the initialization of the written location.
boolean	isObjectArray() Return true if the written array is an object array, false if it is a primitive array.
void	lower(LoweringTool tool) Expand this node into lower level nodes expressing the same semantics.
void	setLastLocationAccess(MemoryNode lla)

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.spi.Lowerable

asNode

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

asNode

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

states

Field Detail

TYPE

public static final NodeClass<UnsafeArrayCopyNode> TYPE

src

ValueNode src

srcPos

ValueNode srcPos

dest

ValueNode dest

destPos

ValueNode destPos

length

ValueNode length

layoutHelper

ValueNode layoutHelper

lastLocationAccess

MemoryNode lastLocationAccess

elementKind

protected Kind elementKind

Constructor Detail

UnsafeArrayCopyNode

public UnsafeArrayCopyNode(ValueNode src,
                           ValueNode srcPos,
                           ValueNode dest,
                           ValueNode destPos,
                           ValueNode length,
                           ValueNode layoutHelper,
                           Kind elementKind)

UnsafeArrayCopyNode

public UnsafeArrayCopyNode(ValueNode src,
                           ValueNode srcPos,
                           ValueNode dest,
                           ValueNode destPos,
                           ValueNode length,
                           Kind elementKind)

UnsafeArrayCopyNode

public UnsafeArrayCopyNode(ValueNode src,
                           ValueNode srcPos,
                           ValueNode dest,
                           ValueNode destPos,
                           ValueNode length,
                           ValueNode layoutHelper)

Method Detail

getArray

public ValueNode getArray()

Description copied from class: ArrayRangeWriteNode

The array that is written to.

Specified by:

getArray in class ArrayRangeWriteNode

getIndex

public ValueNode getIndex()

Description copied from class: ArrayRangeWriteNode

The first modified index.

Specified by:

getIndex in class ArrayRangeWriteNode

getLength

public ValueNode getLength()

Description copied from class: ArrayRangeWriteNode

The length of the modified range.

Specified by:

getLength in class ArrayRangeWriteNode

isObjectArray

public boolean isObjectArray()

Description copied from class: ArrayRangeWriteNode

Return true if the written array is an object array, false if it is a primitive array.

Specified by:

isObjectArray in class ArrayRangeWriteNode

isInitialization

public boolean isInitialization()

Description copied from class: ArrayRangeWriteNode

Returns whether this write is the initialization of the written location. If it is true, the old value of the memory location is either uninitialized or zero. If it is false, the memory location is guaranteed to contain a valid value or zero.

Specified by:

isInitialization in class ArrayRangeWriteNode

getElementKind

public Kind getElementKind()

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

addSnippetArguments

public void addSnippetArguments(SnippetTemplate.Arguments args)

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

arraycopy

public static void arraycopy(Object src,
                             int srcPos,
                             Object dest,
                             int destPos,
                             int length,
                             Kind elementKind)

arraycopyPrimitive

public static void arraycopyPrimitive(Object src,
                                      int srcPos,
                                      Object dest,
                                      int destPos,
                                      int length,
                                      int layoutHelper)