org.graalvm.compiler.nodes.gc

Class CardTableBarrierSet

java.lang.Object

org.graalvm.compiler.nodes.gc.CardTableBarrierSet

All Implemented Interfaces:

BarrierSet

public class CardTableBarrierSet
extends Object
implements BarrierSet

Constructor Summary

Constructors

Constructor and Description
CardTableBarrierSet(ResolvedJavaType objectArrayType)

Method Summary

Modifier and Type	Method and Description
void	addArrayRangeBarriers(ArrayRangeWrite write)
void	addBarriers(FixedAccessNode n)
OnHeapMemoryAccess.BarrierType	arrayStoreBarrierType(JavaKind storageKind)
OnHeapMemoryAccess.BarrierType	fieldLoadBarrierType(ResolvedJavaField field, JavaKind storageKind)
OnHeapMemoryAccess.BarrierType	fieldStoreBarrierType(ResolvedJavaField field, JavaKind storageKind)
OnHeapMemoryAccess.BarrierType	guessStoreBarrierType(ValueNode object, ValueNode value)
boolean	hasBarrier(FixedAccessNode n)
boolean	isMatchingBarrier(FixedAccessNode n, WriteBarrier barrier)
boolean	mayNeedPreWriteBarrier(JavaKind storageKind) Determine whether writes of the given storageKind may ever need a pre-write barrier.
boolean	needsBarrier(FixedAccessNode n)
static boolean	needsWriteBarrier(ArrayRangeWrite write)
boolean	needsWriteBarrier(FixedAccessNode node, ValueNode writtenValue)
OnHeapMemoryAccess.BarrierType	readBarrierType(RawLoadNode load)
OnHeapMemoryAccess.BarrierType	storeBarrierType(RawStoreNode store)
protected boolean	writeRequiresBarrier(FixedAccessNode node, ValueNode writtenValue)

Methods inherited from class java.lang.Object

clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

CardTableBarrierSet

public CardTableBarrierSet(ResolvedJavaType objectArrayType)

Method Detail

readBarrierType

public OnHeapMemoryAccess.BarrierType readBarrierType(RawLoadNode load)

Specified by:

readBarrierType in interface BarrierSet

storeBarrierType

public OnHeapMemoryAccess.BarrierType storeBarrierType(RawStoreNode store)

Specified by:

storeBarrierType in interface BarrierSet

fieldLoadBarrierType

public OnHeapMemoryAccess.BarrierType fieldLoadBarrierType(ResolvedJavaField field,
                                                           JavaKind storageKind)

Specified by:

fieldLoadBarrierType in interface BarrierSet

fieldStoreBarrierType

public OnHeapMemoryAccess.BarrierType fieldStoreBarrierType(ResolvedJavaField field,
                                                            JavaKind storageKind)

Specified by:

fieldStoreBarrierType in interface BarrierSet

arrayStoreBarrierType

public OnHeapMemoryAccess.BarrierType arrayStoreBarrierType(JavaKind storageKind)

Specified by:

arrayStoreBarrierType in interface BarrierSet

guessStoreBarrierType

public OnHeapMemoryAccess.BarrierType guessStoreBarrierType(ValueNode object,
                                                            ValueNode value)

Specified by:

guessStoreBarrierType in interface BarrierSet

addBarriers

public void addBarriers(FixedAccessNode n)

Specified by:

addBarriers in interface BarrierSet

needsBarrier

public boolean needsBarrier(FixedAccessNode n)

hasBarrier

public boolean hasBarrier(FixedAccessNode n)

isMatchingBarrier

public boolean isMatchingBarrier(FixedAccessNode n,
                                 WriteBarrier barrier)

addArrayRangeBarriers

public void addArrayRangeBarriers(ArrayRangeWrite write)

needsWriteBarrier

public boolean needsWriteBarrier(FixedAccessNode node,
                                 ValueNode writtenValue)

writeRequiresBarrier

protected boolean writeRequiresBarrier(FixedAccessNode node,
                                       ValueNode writtenValue)

needsWriteBarrier

public static boolean needsWriteBarrier(ArrayRangeWrite write)

mayNeedPreWriteBarrier

public boolean mayNeedPreWriteBarrier(JavaKind storageKind)

Description copied from interface: BarrierSet

Determine whether writes of the given storageKind may ever need a pre-write barrier.

Specified by:

mayNeedPreWriteBarrier in interface BarrierSet

Returns:

false if no writes of storageKind ever need a pre-write barrier; true if writes of storageKind may need a pre-write barrier at least under certain circumstances.