org.graalvm.compiler.hotspot.replacements

Class HotSpotAllocationSnippets

java.lang.Object

org.graalvm.compiler.replacements.AllocationSnippets

org.graalvm.compiler.hotspot.replacements.HotSpotAllocationSnippets

All Implemented Interfaces:

Snippets

public class HotSpotAllocationSnippets
extends AllocationSnippets

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	HotSpotAllocationSnippets.Templates

Nested classes/interfaces inherited from class org.graalvm.compiler.replacements.AllocationSnippets

AllocationSnippets.AllocationProfilingData, AllocationSnippets.AllocationSnippetCounters, AllocationSnippets.FillContent

Field Summary

Fields

Modifier and Type	Field and Description
static HotSpotForeignCallDescriptor	DYNAMIC_NEW_INSTANCE New dynamic array stub that throws an OutOfMemoryError on allocation failure.
static HotSpotForeignCallDescriptor	DYNAMIC_NEW_INSTANCE_OR_NULL New dynamic array stub that returns null on allocation failure.

Constructor Summary

Constructors

Constructor and Description
HotSpotAllocationSnippets(GraalHotSpotVMConfig config, HotSpotRegistersProvider registers)

Method Summary

Modifier and Type	Method and Description
Object	allocateArray(KlassPointer hub, int length, int arrayBaseOffset, int log2ElementSize, AllocationSnippets.FillContent fillContents, int fillStartOffset, boolean emitMemoryBarrier, boolean maybeUnroll, boolean supportsBulkZeroing, boolean supportsOptimizedFilling, org.graalvm.compiler.hotspot.replacements.HotSpotAllocationSnippets.HotSpotAllocationProfilingData profilingData)
Object	allocateArrayDynamic(Class<?> elementType, Class<?> voidClass, int length, AllocationSnippets.FillContent fillContents, boolean emitMemoryBarrier, JavaKind knownElementKind, int knownLayoutHelper, boolean supportsBulkZeroing, boolean supportsOptimizedFilling, org.graalvm.compiler.hotspot.replacements.HotSpotAllocationSnippets.HotSpotAllocationProfilingData profilingData)
protected Object	allocateInstance(KlassPointer hub, long size, AllocationSnippets.FillContent fillContents, boolean emitMemoryBarrier, org.graalvm.compiler.hotspot.replacements.HotSpotAllocationSnippets.HotSpotAllocationProfilingData profilingData)
Object	allocateInstanceDynamic(Class<?> type, AllocationSnippets.FillContent fillContents, boolean emitMemoryBarrier, org.graalvm.compiler.hotspot.replacements.HotSpotAllocationSnippets.HotSpotAllocationProfilingData profilingData)
int	arrayLengthOffset()
protected Object	callNewArrayStub(Word hub, int length, int fillStartOffset)
protected Object	callNewInstanceStub(Word hub)
protected Object	callNewMultiArrayStub(Word hub, int rank, Word dims)
static Object	dynamicNewInstance(ForeignCallDescriptor descriptor, Class<?> elementType)
static Object	dynamicNewInstanceOrNull(ForeignCallDescriptor descriptor, Class<?> elementType)
static Object	dynamicNewInstanceStub(Class<?> elementType)
protected int	getMinimalBulkZeroingSize()
protected int	getPrefetchDistance()
protected int	getPrefetchLines(boolean isArray)
protected int	getPrefetchStepSize()
protected int	getPrefetchStyle()
Word	getTLABInfo()
void	initializeObjectHeader(Word memory, Word hub, boolean isArray)
protected int	instanceHeaderSize()
protected Object	newmultiarray(KlassPointer hub, int rank, int[] dimensions)
protected int	objectAlignment()
protected void	profileAllocation(AllocationSnippets.AllocationProfilingData profilingData, org.graalvm.word.UnsignedWord size)
Word	readTlabEnd(Word thread)
Word	readTlabTop(Word thread)
protected boolean	shouldAllocateInTLAB(org.graalvm.word.UnsignedWord allocationSize, boolean isArray)
boolean	useTLAB()
protected Object	verifyOop(Object obj)
void	writeTlabTop(Word thread, Word newTop)

Methods inherited from class org.graalvm.compiler.replacements.AllocationSnippets

allocateArrayImpl, allocateInstanceImpl, arrayAllocationSize, arrayAllocationSize, emitMemoryBarrierIf, emitPrefetchAllocate, fillMemoryAligned, fillMemoryAlignedUnrollable, formatArray, formatObject, newMultiArrayImpl

Methods inherited from class java.lang.Object

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

Field Detail

DYNAMIC_NEW_INSTANCE

public static final HotSpotForeignCallDescriptor DYNAMIC_NEW_INSTANCE

New dynamic array stub that throws an OutOfMemoryError on allocation failure.

DYNAMIC_NEW_INSTANCE_OR_NULL

public static final HotSpotForeignCallDescriptor DYNAMIC_NEW_INSTANCE_OR_NULL

New dynamic array stub that returns null on allocation failure.

Constructor Detail

HotSpotAllocationSnippets

public HotSpotAllocationSnippets(GraalHotSpotVMConfig config,
                                 HotSpotRegistersProvider registers)

Method Detail

allocateInstance

protected Object allocateInstance(KlassPointer hub,
                                  long size,
                                  AllocationSnippets.FillContent fillContents,
                                  boolean emitMemoryBarrier,
                                  org.graalvm.compiler.hotspot.replacements.HotSpotAllocationSnippets.HotSpotAllocationProfilingData profilingData)

allocateArray

public Object allocateArray(KlassPointer hub,
                            int length,
                            int arrayBaseOffset,
                            int log2ElementSize,
                            AllocationSnippets.FillContent fillContents,
                            int fillStartOffset,
                            boolean emitMemoryBarrier,
                            boolean maybeUnroll,
                            boolean supportsBulkZeroing,
                            boolean supportsOptimizedFilling,
                            org.graalvm.compiler.hotspot.replacements.HotSpotAllocationSnippets.HotSpotAllocationProfilingData profilingData)

allocateInstanceDynamic

public Object allocateInstanceDynamic(Class<?> type,
                                      AllocationSnippets.FillContent fillContents,
                                      boolean emitMemoryBarrier,
                                      org.graalvm.compiler.hotspot.replacements.HotSpotAllocationSnippets.HotSpotAllocationProfilingData profilingData)

allocateArrayDynamic

public Object allocateArrayDynamic(Class<?> elementType,
                                   Class<?> voidClass,
                                   int length,
                                   AllocationSnippets.FillContent fillContents,
                                   boolean emitMemoryBarrier,
                                   JavaKind knownElementKind,
                                   int knownLayoutHelper,
                                   boolean supportsBulkZeroing,
                                   boolean supportsOptimizedFilling,
                                   org.graalvm.compiler.hotspot.replacements.HotSpotAllocationSnippets.HotSpotAllocationProfilingData profilingData)

newmultiarray

protected Object newmultiarray(KlassPointer hub,
                               int rank,
                               int[] dimensions)

getPrefetchStyle

protected final int getPrefetchStyle()

Specified by:

getPrefetchStyle in class AllocationSnippets

getPrefetchLines

protected final int getPrefetchLines(boolean isArray)

Specified by:

getPrefetchLines in class AllocationSnippets

getPrefetchStepSize

protected final int getPrefetchStepSize()

Specified by:

getPrefetchStepSize in class AllocationSnippets

getPrefetchDistance

protected final int getPrefetchDistance()

Specified by:

getPrefetchDistance in class AllocationSnippets

callNewInstanceStub

protected final Object callNewInstanceStub(Word hub)

Specified by:

callNewInstanceStub in class AllocationSnippets

callNewArrayStub

protected final Object callNewArrayStub(Word hub,
                                        int length,
                                        int fillStartOffset)

Specified by:

callNewArrayStub in class AllocationSnippets

dynamicNewInstanceStub

public static Object dynamicNewInstanceStub(Class<?> elementType)

dynamicNewInstance

public static Object dynamicNewInstance(ForeignCallDescriptor descriptor,
                                        Class<?> elementType)

dynamicNewInstanceOrNull

public static Object dynamicNewInstanceOrNull(ForeignCallDescriptor descriptor,
                                              Class<?> elementType)

callNewMultiArrayStub

protected final Object callNewMultiArrayStub(Word hub,
                                             int rank,
                                             Word dims)

Specified by:

callNewMultiArrayStub in class AllocationSnippets

getMinimalBulkZeroingSize

protected final int getMinimalBulkZeroingSize()

Specified by:

getMinimalBulkZeroingSize in class AllocationSnippets

initializeObjectHeader

public final void initializeObjectHeader(Word memory,
                                         Word hub,
                                         boolean isArray)

Specified by:

initializeObjectHeader in class AllocationSnippets

instanceHeaderSize

protected final int instanceHeaderSize()

Specified by:

instanceHeaderSize in class AllocationSnippets

arrayLengthOffset

public final int arrayLengthOffset()

Specified by:

arrayLengthOffset in class AllocationSnippets

objectAlignment

protected final int objectAlignment()

Specified by:

objectAlignment in class AllocationSnippets

useTLAB

public final boolean useTLAB()

Specified by:

useTLAB in class AllocationSnippets

shouldAllocateInTLAB

protected final boolean shouldAllocateInTLAB(org.graalvm.word.UnsignedWord allocationSize,
                                             boolean isArray)

Specified by:

shouldAllocateInTLAB in class AllocationSnippets

getTLABInfo

public final Word getTLABInfo()

Specified by:

getTLABInfo in class AllocationSnippets

readTlabEnd

public final Word readTlabEnd(Word thread)

Specified by:

readTlabEnd in class AllocationSnippets

readTlabTop

public final Word readTlabTop(Word thread)

Specified by:

readTlabTop in class AllocationSnippets

writeTlabTop

public final void writeTlabTop(Word thread,
                               Word newTop)

Specified by:

writeTlabTop in class AllocationSnippets

verifyOop

protected final Object verifyOop(Object obj)

Specified by:

verifyOop in class AllocationSnippets

profileAllocation

protected final void profileAllocation(AllocationSnippets.AllocationProfilingData profilingData,
                                       org.graalvm.word.UnsignedWord size)

Specified by:

profileAllocation in class AllocationSnippets