org.graalvm.compiler.nodes

Class DynamicPiNode

java.lang.Object

org.graalvm.compiler.graph.Node

org.graalvm.compiler.nodes.ValueNode

org.graalvm.compiler.nodes.calc.FloatingNode

org.graalvm.compiler.nodes.FloatingGuardedNode

org.graalvm.compiler.nodes.PiNode

org.graalvm.compiler.nodes.DynamicPiNode

All Implemented Interfaces:

Cloneable, Formattable, Node.ValueNumberable, CanonicalizableMarker, GuardedNode, Canonicalizable, LimitedValueProxy, LIRLowerable, Proxy, ValueProxy, Virtualizable, ValueNodeInterface

public final class DynamicPiNode
extends PiNode

A PiNode where the type is not yet known. If the type becomes known at a later point in the compilation, this can canonicalize to a regular PiNode.

Nested Class Summary

Nested classes/interfaces inherited from class org.graalvm.compiler.nodes.PiNode

PiNode.IntrinsifyOp, PiNode.Placeholder, PiNode.PlaceholderStamp

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.Canonicalizable

Canonicalizable.Binary<T extends Node>, Canonicalizable.BinaryCommutative<T extends Node>, Canonicalizable.Ternary<T extends Node>, Canonicalizable.Unary<T extends Node>

Field Summary

Fields

Modifier and Type	Field and Description
static NodeClass<DynamicPiNode>	TYPE

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

piStamp

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

guard

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	DynamicPiNode(ValueNode object, GuardingNode guard, ValueNode typeMirror, boolean allowsNull, boolean exact)

Method Summary

Modifier and Type	Method and Description
Node	canonical(CanonicalizerTool tool) Implementations of this method can provide local optimizations like constant folding and strength reduction.
static ValueNode	create(Assumptions assumptions, ConstantReflectionProvider constantReflection, ValueNode object, GuardingNode guard, ValueNode typeMirror)
static ValueNode	create(Assumptions assumptions, ConstantReflectionProvider constantReflection, ValueNode object, GuardingNode guard, ValueNode typeMirror, boolean allowsNull, boolean exact)
boolean	isExact()

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

asNonNullClass, asNonNullObject, canonical, create, create, create, generate, getOriginalNode, inferStamp, intrinsify, intrinsify, object, piCast, piCastNonNull, piCastNonNull, piCastNonNullClass, piCastNonZero, piCastNonZero, piCastPositive, piCastToSnippetReplaceeStamp, piStamp, setOriginalNode, strengthenPiStamp, virtualize

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

getGuard, setGuard

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

asConstant, asJavaConstant, asNode, asSerializableConstant, checkReplaceAtUsagesInvariants, getStackKind, graph, hasUsagesOtherThan, 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, verify, 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.spi.ValueProxy

getGuard

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

asNode

Field Detail

TYPE

public static final NodeClass<DynamicPiNode> TYPE

Constructor Detail

DynamicPiNode

protected DynamicPiNode(ValueNode object,
                        GuardingNode guard,
                        ValueNode typeMirror,
                        boolean allowsNull,
                        boolean exact)

Method Detail

create

public static ValueNode create(Assumptions assumptions,
                               ConstantReflectionProvider constantReflection,
                               ValueNode object,
                               GuardingNode guard,
                               ValueNode typeMirror,
                               boolean allowsNull,
                               boolean exact)

create

public static ValueNode create(Assumptions assumptions,
                               ConstantReflectionProvider constantReflection,
                               ValueNode object,
                               GuardingNode guard,
                               ValueNode typeMirror)

isExact

public boolean isExact()

canonical

public Node canonical(CanonicalizerTool tool)

Description copied from interface: Canonicalizable

Implementations of this method can provide local optimizations like constant folding and strength reduction. Implementations should look at the properties and inputs of the current node and determine if there is a more optimal and always semantically correct replacement.
The return value determines the effect that the canonicalization will have:

• Returning an pre-existing node will replace the current node with the given one.
• Returning a newly created node (that was not yet added to the graph) will replace the current node with the given one, after adding it to the graph. If both the replacement and the replacee are anchored in control flow (fixed nodes), the replacement will be added to the control flow. It is invalid to replace a non-fixed node with a newly created fixed node (because its placement in the control flow cannot be determined without scheduling).
• Returning null will delete the current node and replace it with null at all usages. Note that it is not necessary to delete floating nodes that have no more usages this way - they will be deleted automatically.

Specified by:

canonical in interface Canonicalizable

Overrides:

canonical in class PiNode

Parameters:

tool - provides access to runtime interfaces like MetaAccessProvider