org.graalvm.compiler.nodes.memory

Class FloatableAccessNode

java.lang.Object

org.graalvm.compiler.graph.Node

org.graalvm.compiler.nodes.ValueNode

org.graalvm.compiler.nodes.FixedNode

org.graalvm.compiler.nodes.FixedWithNextNode

org.graalvm.compiler.nodes.DeoptimizingFixedWithNextNode

org.graalvm.compiler.nodes.ImplicitNullCheckNode

org.graalvm.compiler.nodes.memory.FixedAccessNode

org.graalvm.compiler.nodes.memory.FloatableAccessNode

All Implemented Interfaces:

Cloneable, Formattable, IterableNodeType, DeoptimizingNode, DeoptimizingNode.DeoptBefore, GuardedNode, FixedNodeInterface, FixedWithNextNodeInterface, AddressableMemoryAccess, GuardedMemoryAccess, MemoryAccess, OnHeapMemoryAccess, NodeWithState, ValueNodeInterface

Direct Known Subclasses:

ReadNode

public abstract class FloatableAccessNode
extends FixedAccessNode

An FixedAccessNode that can be converted to a FloatingAccessNode.

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.OnHeapMemoryAccess

OnHeapMemoryAccess.BarrierType

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 boolean	forceFixed
static NodeClass<FloatableAccessNode>	TYPE

Fields inherited from class org.graalvm.compiler.nodes.memory.FixedAccessNode

barrierType, guard, location, usedAsNullCheck

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

deoptReasonAndAction, deoptSpeculation

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

stateBefore

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

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

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	FloatableAccessNode(NodeClass<? extends FloatableAccessNode> c, AddressNode address, org.graalvm.word.LocationIdentity location, Stamp stamp)
protected	FloatableAccessNode(NodeClass<? extends FloatableAccessNode> c, AddressNode address, org.graalvm.word.LocationIdentity location, Stamp stamp, GuardingNode guard, OnHeapMemoryAccess.BarrierType barrierType)
protected	FloatableAccessNode(NodeClass<? extends FloatableAccessNode> c, AddressNode address, org.graalvm.word.LocationIdentity location, Stamp stamp, GuardingNode guard, OnHeapMemoryAccess.BarrierType barrierType, boolean nullCheck, FrameState stateBefore)

Method Summary

Modifier and Type	Method and Description
abstract FloatingAccessNode	asFloatingNode()
boolean	canFloat() AccessNodes can float only if their location identities are not ANY_LOCATION.
void	setForceFixed(boolean flag)

Methods inherited from class org.graalvm.compiler.nodes.memory.FixedAccessNode

canDeoptimize, getAddress, getBarrierType, getGuard, getLastLocationAccess, getLocationIdentity, getUsedAsNullCheck, setAddress, setGuard, setLastLocationAccess, setUsedAsNullCheck

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

getDeoptReasonAndAction, getDeoptSpeculation, setImplicitDeoptimization

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

setStateBefore, stateBefore

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

asFixedWithNextNode, next, setNext

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.AddressableMemoryAccess

canNullCheck

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

asNode

Methods inherited from interface org.graalvm.compiler.nodes.DeoptimizingNode.DeoptBefore

canUseAsStateDuring

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

states

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

asFixedNode

Field Detail

TYPE

public static final NodeClass<FloatableAccessNode> TYPE

forceFixed

protected boolean forceFixed

Constructor Detail

FloatableAccessNode

protected FloatableAccessNode(NodeClass<? extends FloatableAccessNode> c,
                              AddressNode address,
                              org.graalvm.word.LocationIdentity location,
                              Stamp stamp)

FloatableAccessNode

protected FloatableAccessNode(NodeClass<? extends FloatableAccessNode> c,
                              AddressNode address,
                              org.graalvm.word.LocationIdentity location,
                              Stamp stamp,
                              GuardingNode guard,
                              OnHeapMemoryAccess.BarrierType barrierType)

FloatableAccessNode

protected FloatableAccessNode(NodeClass<? extends FloatableAccessNode> c,
                              AddressNode address,
                              org.graalvm.word.LocationIdentity location,
                              Stamp stamp,
                              GuardingNode guard,
                              OnHeapMemoryAccess.BarrierType barrierType,
                              boolean nullCheck,
                              FrameState stateBefore)

Method Detail

asFloatingNode

public abstract FloatingAccessNode asFloatingNode()

setForceFixed

public void setForceFixed(boolean flag)

canFloat

public boolean canFloat()

AccessNodes can float only if their location identities are not ANY_LOCATION. Furthermore, in case G1 is enabled any access (read) to the java.lang.ref.Reference.referent field which has an attached write barrier with pre-semantics can not also float.