org.graalvm.compiler.nodes.gc

Class G1BarrierSet

java.lang.Object

org.graalvm.compiler.nodes.gc.G1BarrierSet

All Implemented Interfaces:

BarrierSet

public class G1BarrierSet
extends Object
implements BarrierSet

Constructor Summary

Constructors

Constructor and Description
G1BarrierSet(ResolvedJavaType objectArrayType, ResolvedJavaField referentField)

Method Summary

Modifier and Type	Method and Description
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	mayNeedPreWriteBarrier(JavaKind storageKind) Determine whether writes of the given storageKind may ever need a pre-write barrier.
OnHeapMemoryAccess.BarrierType	readBarrierType(RawLoadNode load)
OnHeapMemoryAccess.BarrierType	storeBarrierType(RawStoreNode store)
protected boolean	writeRequiresPostBarrier(FixedAccessNode node, ValueNode writtenValue)

Methods inherited from class java.lang.Object

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

Constructor Detail

G1BarrierSet

public G1BarrierSet(ResolvedJavaType objectArrayType,
                    ResolvedJavaField referentField)

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

writeRequiresPostBarrier

protected boolean writeRequiresPostBarrier(FixedAccessNode node,
                                           ValueNode writtenValue)

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.