com.oracle.svm.core.genscavenge.graal

Class SubstrateCardTableBarrierSet

java.lang.Object

org.graalvm.compiler.nodes.gc.CardTableBarrierSet

com.oracle.svm.core.genscavenge.graal.SubstrateCardTableBarrierSet

All Implemented Interfaces:

org.graalvm.compiler.nodes.gc.BarrierSet

public class SubstrateCardTableBarrierSet
extends org.graalvm.compiler.nodes.gc.CardTableBarrierSet

Static fields in SVM are represented as two arrays in the native image heap: one for Object fields and one for all primitive fields (see StaticFieldsSupport). Therefore, we must emit array write barriers for static fields.

Constructor Summary

Constructors

Constructor and Description
SubstrateCardTableBarrierSet(jdk.vm.ci.meta.ResolvedJavaType objectArrayType)

Method Summary

Modifier and Type	Method and Description
org.graalvm.compiler.nodes.memory.OnHeapMemoryAccess.BarrierType	fieldStoreBarrierType(jdk.vm.ci.meta.ResolvedJavaField field, jdk.vm.ci.meta.JavaKind storageKind)

Methods inherited from class org.graalvm.compiler.nodes.gc.CardTableBarrierSet

addArrayRangeBarriers, addBarriers, arrayStoreBarrierType, fieldLoadBarrierType, guessStoreBarrierType, hasBarrier, isMatchingBarrier, mayNeedPreWriteBarrier, needsBarrier, needsWriteBarrier, needsWriteBarrier, readBarrierType, storeBarrierType, writeRequiresBarrier

Methods inherited from class java.lang.Object

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

Constructor Detail

SubstrateCardTableBarrierSet

public SubstrateCardTableBarrierSet(jdk.vm.ci.meta.ResolvedJavaType objectArrayType)

Method Detail

fieldStoreBarrierType

public org.graalvm.compiler.nodes.memory.OnHeapMemoryAccess.BarrierType fieldStoreBarrierType(jdk.vm.ci.meta.ResolvedJavaField field,
                                                                                              jdk.vm.ci.meta.JavaKind storageKind)

Specified by:

fieldStoreBarrierType in interface org.graalvm.compiler.nodes.gc.BarrierSet

Overrides:

fieldStoreBarrierType in class org.graalvm.compiler.nodes.gc.CardTableBarrierSet