org.graalvm.compiler.replacements.gc

Class G1WriteBarrierSnippets

java.lang.Object

org.graalvm.compiler.replacements.gc.WriteBarrierSnippets

org.graalvm.compiler.replacements.gc.G1WriteBarrierSnippets

All Implemented Interfaces:

Snippets

Direct Known Subclasses:

HotSpotG1WriteBarrierSnippets

public abstract class G1WriteBarrierSnippets
extends WriteBarrierSnippets
implements Snippets

Implementation of the write barriers for the G1 garbage collector.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	G1WriteBarrierSnippets.Counters
static class	G1WriteBarrierSnippets.G1WriteBarrierLowerer

Field Summary

Fields

Modifier and Type	Field and Description
static org.graalvm.word.LocationIdentity	CARD_QUEUE_BUFFER_LOCATION
static org.graalvm.word.LocationIdentity	CARD_QUEUE_INDEX_LOCATION
static org.graalvm.word.LocationIdentity	CARD_QUEUE_LOG_LOCATION
protected static org.graalvm.word.LocationIdentity[]	KILLED_POST_WRITE_BARRIER_STUB_LOCATIONS
protected static org.graalvm.word.LocationIdentity[]	KILLED_PRE_WRITE_BARRIER_STUB_LOCATIONS
static org.graalvm.word.LocationIdentity	SATB_QUEUE_BUFFER_LOCATION
static org.graalvm.word.LocationIdentity	SATB_QUEUE_INDEX_LOCATION
static org.graalvm.word.LocationIdentity	SATB_QUEUE_LOG_LOCATION
static org.graalvm.word.LocationIdentity	SATB_QUEUE_MARKING_ACTIVE_LOCATION

Fields inherited from class org.graalvm.compiler.replacements.gc.WriteBarrierSnippets

GC_CARD_LOCATION

Constructor Summary

Constructors

Constructor and Description
G1WriteBarrierSnippets()

Method Summary

Modifier and Type	Method and Description
protected abstract int	cardQueueBufferOffset()
protected abstract int	cardQueueIndexOffset()
protected abstract Word	cardTableAddress(org.graalvm.word.Pointer oop)
protected abstract byte	dirtyCardValue()
void	g1ArrayRangePostWriteBarrier(AddressNode.Address address, long length, int elementStride)
void	g1ArrayRangePreWriteBarrier(AddressNode.Address address, long length, int elementStride)
void	g1PostWriteBarrier(AddressNode.Address address, Object object, Object value, boolean usePrecise, int traceStartCycle, G1WriteBarrierSnippets.Counters counters)
void	g1PreWriteBarrier(AddressNode.Address address, Object object, Object expectedObject, boolean doLoad, boolean nullCheck, int traceStartCycle, G1WriteBarrierSnippets.Counters counters)
void	g1ReferentReadBarrier(AddressNode.Address address, Object object, Object expectedObject, int traceStartCycle, G1WriteBarrierSnippets.Counters counters)
protected abstract long	gcTotalCollectionsAddress()
protected abstract Word	getThread()
protected abstract int	logOfHeapRegionGrainBytes()
protected abstract int	objectArrayIndexScale()
protected abstract ForeignCallDescriptor	postWriteBarrierCallDescriptor()
protected abstract ForeignCallDescriptor	preWriteBarrierCallDescriptor()
protected abstract ForeignCallDescriptor	printfCallDescriptor()
protected abstract ResolvedJavaType	referenceType()
protected abstract long	referentOffset()
protected abstract int	satbQueueBufferOffset()
protected abstract int	satbQueueIndexOffset()
protected abstract int	satbQueueMarkingActiveOffset()
protected abstract ForeignCallDescriptor	validateObjectCallDescriptor()
protected abstract boolean	verifyBarrier()
protected abstract ForeignCallDescriptor	verifyOopCallDescriptor()
protected abstract boolean	verifyOops()
protected abstract int	wordSize()
protected abstract byte	youngCardValue()

Methods inherited from class org.graalvm.compiler.replacements.gc.WriteBarrierSnippets

getPointerToFirstArrayElement, getPointerToLastArrayElement, verifyNotArray

Methods inherited from class java.lang.Object

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

Field Detail

SATB_QUEUE_MARKING_ACTIVE_LOCATION

public static final org.graalvm.word.LocationIdentity SATB_QUEUE_MARKING_ACTIVE_LOCATION

SATB_QUEUE_BUFFER_LOCATION

public static final org.graalvm.word.LocationIdentity SATB_QUEUE_BUFFER_LOCATION

SATB_QUEUE_LOG_LOCATION

public static final org.graalvm.word.LocationIdentity SATB_QUEUE_LOG_LOCATION

SATB_QUEUE_INDEX_LOCATION

public static final org.graalvm.word.LocationIdentity SATB_QUEUE_INDEX_LOCATION

CARD_QUEUE_BUFFER_LOCATION

public static final org.graalvm.word.LocationIdentity CARD_QUEUE_BUFFER_LOCATION

CARD_QUEUE_LOG_LOCATION

public static final org.graalvm.word.LocationIdentity CARD_QUEUE_LOG_LOCATION

CARD_QUEUE_INDEX_LOCATION

public static final org.graalvm.word.LocationIdentity CARD_QUEUE_INDEX_LOCATION

KILLED_PRE_WRITE_BARRIER_STUB_LOCATIONS

protected static final org.graalvm.word.LocationIdentity[] KILLED_PRE_WRITE_BARRIER_STUB_LOCATIONS

KILLED_POST_WRITE_BARRIER_STUB_LOCATIONS

protected static final org.graalvm.word.LocationIdentity[] KILLED_POST_WRITE_BARRIER_STUB_LOCATIONS

Constructor Detail

G1WriteBarrierSnippets

public G1WriteBarrierSnippets()

Method Detail

g1PreWriteBarrier

public void g1PreWriteBarrier(AddressNode.Address address,
                              Object object,
                              Object expectedObject,
                              boolean doLoad,
                              boolean nullCheck,
                              int traceStartCycle,
                              G1WriteBarrierSnippets.Counters counters)

g1ReferentReadBarrier

public void g1ReferentReadBarrier(AddressNode.Address address,
                                  Object object,
                                  Object expectedObject,
                                  int traceStartCycle,
                                  G1WriteBarrierSnippets.Counters counters)

g1PostWriteBarrier

public void g1PostWriteBarrier(AddressNode.Address address,
                               Object object,
                               Object value,
                               boolean usePrecise,
                               int traceStartCycle,
                               G1WriteBarrierSnippets.Counters counters)

g1ArrayRangePreWriteBarrier

public void g1ArrayRangePreWriteBarrier(AddressNode.Address address,
                                        long length,
                                        int elementStride)

g1ArrayRangePostWriteBarrier

public void g1ArrayRangePostWriteBarrier(AddressNode.Address address,
                                         long length,
                                         int elementStride)

getThread

protected abstract Word getThread()

wordSize

protected abstract int wordSize()

objectArrayIndexScale

protected abstract int objectArrayIndexScale()

satbQueueMarkingActiveOffset

protected abstract int satbQueueMarkingActiveOffset()

satbQueueBufferOffset

protected abstract int satbQueueBufferOffset()

satbQueueIndexOffset

protected abstract int satbQueueIndexOffset()

cardQueueBufferOffset

protected abstract int cardQueueBufferOffset()

cardQueueIndexOffset

protected abstract int cardQueueIndexOffset()

dirtyCardValue

protected abstract byte dirtyCardValue()

youngCardValue

protected abstract byte youngCardValue()

cardTableAddress

protected abstract Word cardTableAddress(org.graalvm.word.Pointer oop)

logOfHeapRegionGrainBytes

protected abstract int logOfHeapRegionGrainBytes()

preWriteBarrierCallDescriptor

protected abstract ForeignCallDescriptor preWriteBarrierCallDescriptor()

postWriteBarrierCallDescriptor

protected abstract ForeignCallDescriptor postWriteBarrierCallDescriptor()

verifyOops

protected abstract boolean verifyOops()

verifyBarrier

protected abstract boolean verifyBarrier()

gcTotalCollectionsAddress

protected abstract long gcTotalCollectionsAddress()

verifyOopCallDescriptor

protected abstract ForeignCallDescriptor verifyOopCallDescriptor()

validateObjectCallDescriptor

protected abstract ForeignCallDescriptor validateObjectCallDescriptor()

printfCallDescriptor

protected abstract ForeignCallDescriptor printfCallDescriptor()

referenceType

protected abstract ResolvedJavaType referenceType()

referentOffset

protected abstract long referentOffset()