org.graalvm.compiler.nodes.virtual

Class VirtualArrayNode

java.lang.Object

org.graalvm.compiler.graph.Node

org.graalvm.compiler.nodes.ValueNode

org.graalvm.compiler.nodes.virtual.VirtualObjectNode

org.graalvm.compiler.nodes.virtual.VirtualArrayNode

All Implemented Interfaces:

Cloneable, Formattable, IterableNodeType, ArrayLengthProvider, LIRLowerable, ValueNodeInterface

public class VirtualArrayNode
extends VirtualObjectNode
implements ArrayLengthProvider

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.spi.ArrayLengthProvider

ArrayLengthProvider.FindLengthMode

Field Summary

Fields

Modifier and Type	Field and Description
protected ResolvedJavaType	componentType
protected int	length
static NodeClass<VirtualArrayNode>	TYPE

Fields inherited from class org.graalvm.compiler.nodes.virtual.VirtualObjectNode

hasIdentity

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

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	VirtualArrayNode(NodeClass<? extends VirtualObjectNode> c, ResolvedJavaType componentType, int length)
	VirtualArrayNode(ResolvedJavaType componentType, int length)

Method Summary

Modifier and Type	Method and Description
int	byteArrayEntryByteCount(int index, VirtualizerTool tool) Returns the number of bytes that the entry at a given index actually occupies.
ResolvedJavaType	componentType()
VirtualArrayNode	duplicate() Returns an exact duplicate of this virtual object node, which has not been added to the graph yet.
int	entryCount() The number of entries this virtual object has.
int	entryIndexForOffset(MetaAccessProvider metaAccess, long constantOffset, JavaKind expectedEntryKind) If the given index denotes an entry in this virtual object, the index of this entry is returned.
static int	entryIndexForOffset(MetaAccessProvider metaAccess, long constantOffset, JavaKind expectedEntryKind, ResolvedJavaType componentType, int length)
JavaKind	entryKind(MetaAccessExtensionProvider metaAccessExtensionProvider, int index) Returns the JavaKind of the entry at the given index.
String	entryName(int index) Returns the name of the entry at the given index.
ValueNode	findLength(ArrayLengthProvider.FindLengthMode mode, ConstantReflectionProvider constantReflection) Returns the length of the array described by this node, or null if it is not available.
void	generate(NodeLIRBuilderTool gen)
ValueNode	getMaterializedRepresentation(FixedNode fixed, ValueNode[] entries, LockState locks) Returns a node that can be used to materialize this virtual object.
String	toString(Verbosity verbosity) Creates a String representation for this with a given Verbosity.
ResolvedJavaType	type() The type of object described by this VirtualObjectNode.
static ValueNode	virtualizeByteArrayRead(ValueNode entry, JavaKind accessKind, Stamp targetStamp) Performs some sanity checks.

Methods inherited from class org.graalvm.compiler.nodes.virtual.VirtualObjectNode

afterClone, canVirtualizeLargeByteArrayUnsafeRead, getObjectId, hasIdentity, isVirtualByteArray, isVirtualByteArrayAccess, resetObjectId, setIdentity, setObjectId

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

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, updateNodeSourcePosition, updatePredecessor, updateUsages, usages, valueEquals, verify, verifyEdges, verifyInputs, verifySourcePosition, withNodeSourcePosition

Methods inherited from class java.lang.Object

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

Field Detail

TYPE

public static final NodeClass<VirtualArrayNode> TYPE

componentType

protected final ResolvedJavaType componentType

length

protected final int length

Constructor Detail

VirtualArrayNode

public VirtualArrayNode(ResolvedJavaType componentType,
                        int length)

VirtualArrayNode

protected VirtualArrayNode(NodeClass<? extends VirtualObjectNode> c,
                           ResolvedJavaType componentType,
                           int length)

Method Detail

type

public ResolvedJavaType type()

Description copied from class: VirtualObjectNode

The type of object described by this VirtualObjectNode. In case of arrays, this is the array type (and not the component type).

Specified by:

type in class VirtualObjectNode

componentType

public ResolvedJavaType componentType()

entryCount

public int entryCount()

Description copied from class: VirtualObjectNode

The number of entries this virtual object has. Either the number of fields or the number of array elements.

Specified by:

entryCount in class VirtualObjectNode

generate

public void generate(NodeLIRBuilderTool gen)

Specified by:

generate in interface LIRLowerable

Overrides:

generate in class VirtualObjectNode

toString

public String toString(Verbosity verbosity)

Description copied from class: Node

Creates a String representation for this with a given Verbosity.

Overrides:

toString in class Node

entryName

public String entryName(int index)

Description copied from class: VirtualObjectNode

Returns the name of the entry at the given index. Only used for debugging purposes.

Specified by:

entryName in class VirtualObjectNode

entryIndexForOffset

public int entryIndexForOffset(MetaAccessProvider metaAccess,
                               long constantOffset,
                               JavaKind expectedEntryKind)

Description copied from class: VirtualObjectNode

If the given index denotes an entry in this virtual object, the index of this entry is returned. If no such entry can be found, this method returns -1.

Specified by:

entryIndexForOffset in class VirtualObjectNode

constantOffset - offset, where the value is placed.

expectedEntryKind - Specifies which type is expected at this offset (Is important when

entryIndexForOffset

public static int entryIndexForOffset(MetaAccessProvider metaAccess,
                                      long constantOffset,
                                      JavaKind expectedEntryKind,
                                      ResolvedJavaType componentType,
                                      int length)

entryKind

public JavaKind entryKind(MetaAccessExtensionProvider metaAccessExtensionProvider,
                          int index)

Description copied from class: VirtualObjectNode

Returns the JavaKind of the entry at the given index.

Specified by:

entryKind in class VirtualObjectNode

duplicate

public VirtualArrayNode duplicate()

Description copied from class: VirtualObjectNode

Returns an exact duplicate of this virtual object node, which has not been added to the graph yet.

Specified by:

duplicate in class VirtualObjectNode

getMaterializedRepresentation

public ValueNode getMaterializedRepresentation(FixedNode fixed,
                                               ValueNode[] entries,
                                               LockState locks)

Description copied from class: VirtualObjectNode

Returns a node that can be used to materialize this virtual object. If this returns an AllocatedObjectNode then this node will be attached to a CommitAllocationNode , otherwise the node will just be added to the graph.

Specified by:

getMaterializedRepresentation in class VirtualObjectNode

findLength

public ValueNode findLength(ArrayLengthProvider.FindLengthMode mode,
                            ConstantReflectionProvider constantReflection)

Description copied from interface: ArrayLengthProvider

Returns the length of the array described by this node, or null if it is not available. Details of the different modes are documented in ArrayLengthProvider.FindLengthMode. This method should not be called directly. Use GraphUtil.arrayLength(org.graalvm.compiler.nodes.ValueNode, org.graalvm.compiler.nodes.spi.ArrayLengthProvider.FindLengthMode, ConstantReflectionProvider) instead.

Specified by:

findLength in interface ArrayLengthProvider

byteArrayEntryByteCount

public int byteArrayEntryByteCount(int index,
                                   VirtualizerTool tool)

Returns the number of bytes that the entry at a given index actually occupies.

virtualizeByteArrayRead

public static ValueNode virtualizeByteArrayRead(ValueNode entry,
                                                JavaKind accessKind,
                                                Stamp targetStamp)

Performs some sanity checks.