org.graalvm.compiler.nodes.memory

Class FixedAccessNode

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

All Implemented Interfaces:

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

Direct Known Subclasses:

AbstractCompareAndSwapNode, AbstractWriteNode, FloatableAccessNode, JavaReadNode, LoweredAtomicReadAndAddNode, LoweredAtomicReadAndWriteNode, ZeroMemoryNode

public abstract class FixedAccessNode
extends ImplicitNullCheckNode
implements AddressableMemoryAccess, GuardedMemoryAccess, OnHeapMemoryAccess, IterableNodeType

Accesses a value at a memory address specified by an address. The access does not include a null check on the object.

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

Method Summary

Modifier and Type	Method and Description
boolean	canDeoptimize() Determines if this node needs deoptimization information.
AddressNode	getAddress()
OnHeapMemoryAccess.BarrierType	getBarrierType() Gets the write barrier type for that particular access.
GuardingNode	getGuard()
MemoryKill	getLastLocationAccess()
org.graalvm.word.LocationIdentity	getLocationIdentity()
boolean	getUsedAsNullCheck()
void	setAddress(AddressNode address)
void	setGuard(GuardingNode guard)
void	setLastLocationAccess(MemoryKill lla)
void	setUsedAsNullCheck(boolean check)

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<FixedAccessNode> TYPE

guard

protected GuardingNode guard

location

protected final org.graalvm.word.LocationIdentity location

usedAsNullCheck

protected boolean usedAsNullCheck

barrierType

protected OnHeapMemoryAccess.BarrierType barrierType

Constructor Detail

FixedAccessNode

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

FixedAccessNode

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

FixedAccessNode

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

Method Detail

getAddress

public AddressNode getAddress()

Specified by:

getAddress in interface AddressableMemoryAccess

setAddress

public void setAddress(AddressNode address)

Specified by:

setAddress in interface AddressableMemoryAccess

getLocationIdentity

public org.graalvm.word.LocationIdentity getLocationIdentity()

Specified by:

getLocationIdentity in interface MemoryAccess

getUsedAsNullCheck

public boolean getUsedAsNullCheck()

setUsedAsNullCheck

public void setUsedAsNullCheck(boolean check)

canDeoptimize

public boolean canDeoptimize()

Description copied from interface: DeoptimizingNode

Determines if this node needs deoptimization information.

Specified by:

canDeoptimize in interface DeoptimizingNode

getGuard

public GuardingNode getGuard()

Specified by:

getGuard in interface GuardedNode

setGuard

public void setGuard(GuardingNode guard)

Specified by:

setGuard in interface GuardedNode

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()

getBarrierType

public OnHeapMemoryAccess.BarrierType getBarrierType()

Description copied from interface: OnHeapMemoryAccess

Gets the write barrier type for that particular access.

Specified by:

getBarrierType in interface OnHeapMemoryAccess