org.graalvm.compiler.replacements.nodes

Class BasicArrayCopyNode

java.lang.Object

org.graalvm.compiler.graph.Node

org.graalvm.compiler.nodes.ValueNode

org.graalvm.compiler.nodes.FixedNode

org.graalvm.compiler.nodes.ControlSplitNode

org.graalvm.compiler.nodes.WithExceptionNode

org.graalvm.compiler.replacements.nodes.BasicArrayCopyNode

All Implemented Interfaces:

Cloneable, Formattable, MemoryKillMarker, DeoptBciSupplier, DeoptimizingNode, DeoptimizingNode.DeoptDuring, FixedNodeInterface, MemoryAccess, MemoryKill, SingleMemoryKill, Lowerable, NodeWithState, Virtualizable, StateSplit, ValueNodeInterface

Direct Known Subclasses:

ArrayCopyNode, ArrayCopyWithDelayedLoweringNode

public abstract class BasicArrayCopyNode
extends WithExceptionNode
implements DeoptBciSupplier, StateSplit, Virtualizable, SingleMemoryKill, MemoryAccess, Lowerable, DeoptimizingNode.DeoptDuring

Base class for nodes that intrinsify System.arraycopy(java.lang.Object, int, java.lang.Object, int, int).

Nested Class Summary

Nested classes/interfaces inherited from class org.graalvm.compiler.graph.Node

Node.ConstantNodeParameter, Node.EdgeVisitor, Node.IndirectCanonicalization, Node.InjectedNodeParameter, Node.Input, Node.NodeInsertionStackTrace, Node.NodeIntrinsic, Node.NodeIntrinsicFactory, Node.OptionalInput, Node.Successor, Node.ValueNumberable

Nested classes/interfaces inherited from interface org.graalvm.compiler.nodes.memory.MemoryKill

MemoryKill.NoLocation

Nested classes/interfaces inherited from interface org.graalvm.compiler.nodes.DeoptimizingNode

DeoptimizingNode.DeoptAfter, DeoptimizingNode.DeoptBefore, DeoptimizingNode.DeoptDuring

Field Summary

Fields

Modifier and Type	Field and Description
protected int	bci
protected JavaKind	elementKind
protected MemoryKill	lastLocationAccess
protected FrameState	stateAfter
static NodeClass<BasicArrayCopyNode>	TYPE

Fields inherited from class org.graalvm.compiler.nodes.WithExceptionNode

exceptionEdge, next

Fields inherited from class org.graalvm.compiler.nodes.ValueNode

EMPTY_ARRAY, stamp

Fields inherited from class org.graalvm.compiler.graph.Node

NODE_LIST, NOT_ITERABLE, TRACK_CREATION_POSITION, WithAllEdges, WithNoEdges, WithOnlyInputEdges, WithOnlySucessorEdges

Fields inherited from interface org.graalvm.compiler.nodes.memory.MemoryKill

MULTI_KILL_NO_LOCATION, NO_LOCATION

Constructor Summary

Constructors

Constructor and Description
BasicArrayCopyNode(NodeClass<? extends BasicArrayCopyNode> type, ValueNode src, ValueNode srcPos, ValueNode dest, ValueNode destPos, ValueNode length, JavaKind elementKind)
BasicArrayCopyNode(NodeClass<? extends BasicArrayCopyNode> type, ValueNode src, ValueNode srcPos, ValueNode dest, ValueNode destPos, ValueNode length, JavaKind elementKind, int bci)

Method Summary

Modifier and Type	Method and Description
int	bci()
boolean	canDeoptimize() Determines if this node needs deoptimization information.
static boolean	checkBounds(int position, int length, VirtualObjectNode virtualObject)
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.
ValueNode	getDestination()
ValueNode	getDestinationPosition()
JavaKind	getElementKind()
org.graalvm.word.LocationIdentity	getKilledLocationIdentity() This method is used to determine which memory location is killed by this node.
MemoryKill	getLastLocationAccess()
ValueNode	getLength()
org.graalvm.word.LocationIdentity	getLocationIdentity()
ValueNode	getSource()
ValueNode	getSourcePosition()
boolean	hasSideEffect() Determines if this node has a side-effect.
boolean	isExact()
static JavaKind	selectComponentKind(BasicArrayCopyNode arraycopy)
void	setBci(int bci) Remember the byte code index (BCI) for code generation or lowering purposes.
void	setLastLocationAccess(MemoryKill lla)
void	setSource(ValueNode value)
void	setSourcePosition(ValueNode value)
void	setStateAfter(FrameState x) Sets the FrameState corresponding to the state of the JVM after execution of this node.
void	setStateDuring(FrameState stateDuring) Sets the FrameState describing the program state during the execution of this node.
FrameState	stateAfter() Gets the FrameState corresponding to the state of the JVM after 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 org.graalvm.compiler.nodes.WithExceptionNode

exceptionEdge, getPrimarySuccessor, getProfileData, getSuccessorCount, killExceptionEdge, next, probability, replaceWithNonThrowing, setExceptionEdge, setNext, setProbability

Methods inherited from class org.graalvm.compiler.nodes.ControlSplitNode

successorProbabilities

Methods inherited from class org.graalvm.compiler.nodes.FixedNode

asFixedNode, verify

Methods inherited from class org.graalvm.compiler.nodes.ValueNode

asConstant, asJavaConstant, asNode, asSerializableConstant, checkReplaceAtUsagesInvariants, getStackKind, graph, hasUsagesOtherThan, inferStamp, isAllowedUsageType, isConstant, isConstantPredicate, isDefaultConstant, isIllegalConstant, isJavaConstant, isNullConstant, isSerializableConstant, recursivelyDataFlowEqualsUpTo, setStamp, stamp, updateStamp, updateUsagesInterface

Methods inherited from class org.graalvm.compiler.graph.Node

afterClone, applyInputs, applySuccessors, assertFalse, assertTrue, cfgPredecessors, cfgSuccessors, clearInputs, clearNodeSourcePosition, clearSuccessors, copyWithInputs, copyWithInputs, dataFlowEquals, dynamicNodeSizeEstimate, estimatedNodeCycles, estimatedNodeSize, fail, formatTo, getCreationPosition, getDebug, getDebugProperties, getDebugProperties, getInsertionPosition, getNodeClass, getNodeSourcePosition, getOptions, getUsageCount, hasExactlyOneUsage, hashCode, hasMoreThanOneUsage, hasNoUsages, hasOnlyUsagesOfType, hasUsages, hasUsagesOfType, inputPositions, inputs, isAlive, isDeleted, isUnregistered, markDeleted, maybeNotifyZeroUsages, modCount, predecessor, pushInputs, removeUsage, replaceAllInputs, replaceAndDelete, replaceAtAllUsages, replaceAtMatchingUsages, replaceAtPredecessor, replaceAtUsages, replaceAtUsages, replaceAtUsages, replaceAtUsages, replaceAtUsages, replaceAtUsagesAndDelete, replaceAtUsagesAndDelete, replaceFirstInput, replaceFirstSuccessor, safeDelete, setCreationPosition, setInsertionPosition, setNodeSourcePosition, singleUsage, successorPositions, successors, toString, toString, updateNodeSourcePosition, updatePredecessor, updateUsages, usages, valueEquals, verifyEdges, verifyInputs, verifySourcePosition, withNodeSourcePosition

Methods inherited from class java.lang.Object

clone, equals, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.graalvm.compiler.nodes.memory.MemoryKill

asMultiMemoryKill, asSingleMemoryKill, isMemoryKill, isMultiMemoryKill, isSingleMemoryKill

Methods inherited from interface org.graalvm.compiler.nodes.spi.Lowerable

lower

Methods inherited from interface org.graalvm.compiler.nodes.spi.NodeWithState

states

Methods inherited from interface org.graalvm.compiler.nodes.FixedNodeInterface

asFixedNode

Methods inherited from interface org.graalvm.compiler.nodes.ValueNodeInterface

asNode

Field Detail

TYPE

public static final NodeClass<BasicArrayCopyNode> TYPE

lastLocationAccess

protected MemoryKill lastLocationAccess

stateAfter

protected FrameState stateAfter

elementKind

protected JavaKind elementKind

bci

protected int bci

Constructor Detail

BasicArrayCopyNode

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

BasicArrayCopyNode

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

Method Detail

bci

public int bci()

Specified by:

bci in interface DeoptBciSupplier

Returns:

the byte code index (BCI) associated with the node implementing this interface

setBci

public void setBci(int bci)

Description copied from interface: DeoptBciSupplier

Remember the byte code index (BCI) for code generation or lowering purposes. For example, nodes lowering to foreign calls that can safepoint require a valid BCI for computations of the during-state of such a foreign call.

Specified by:

setBci in interface DeoptBciSupplier

getElementKind

public JavaKind getElementKind()

getLocationIdentity

public org.graalvm.word.LocationIdentity getLocationIdentity()

Specified by:

getLocationIdentity in interface MemoryAccess

getKilledLocationIdentity

public org.graalvm.word.LocationIdentity getKilledLocationIdentity()

Description copied from interface: SingleMemoryKill

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:

getKilledLocationIdentity in interface SingleMemoryKill

Returns:

the identity of the location killed by this node.

getLastLocationAccess

public MemoryKill getLastLocationAccess()

Specified by:

getLastLocationAccess in interface MemoryAccess

Returns:

a MemoryKill that represents the last memory state in the memory graph for the LocationIdentity returned by MemoryAccess.getLocationIdentity()

setLastLocationAccess

public void setLastLocationAccess(MemoryKill lla)

Specified by:

setLastLocationAccess in interface MemoryAccess

Parameters:

lla - the MemoryKill that represents the last kill of the LocationIdentity returned by MemoryAccess.getLocationIdentity()

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

stateAfter

public FrameState stateAfter()

Description copied from interface: StateSplit

Gets the FrameState corresponding to the state of the JVM after execution of this node.

Specified by:

stateAfter in interface StateSplit

setStateAfter

public void setStateAfter(FrameState x)

Description copied from interface: StateSplit

Sets the FrameState corresponding to the state of the JVM after execution of this node.

Specified by:

setStateAfter in interface StateSplit

hasSideEffect

public boolean hasSideEffect()

Description copied from interface: StateSplit

Determines if this node has a side-effect. Such nodes cannot be safely re-executed because they modify state which is visible to other threads or modify state beyond what is captured in FrameState nodes.

Specified by:

hasSideEffect in interface StateSplit

selectComponentKind

public static JavaKind selectComponentKind(BasicArrayCopyNode arraycopy)

getSource

public ValueNode getSource()

getSourcePosition

public ValueNode getSourcePosition()

getDestination

public ValueNode getDestination()

getDestinationPosition

public ValueNode getDestinationPosition()

getLength

public ValueNode getLength()

setSource

public void setSource(ValueNode value)

setSourcePosition

public void setSourcePosition(ValueNode value)

checkBounds

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

checkEntryTypes

public 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

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