com.oracle.svm.core.graal.snippets

Class SubstrateAllocationSnippets

java.lang.Object

org.graalvm.compiler.replacements.AllocationSnippets

com.oracle.svm.core.graal.snippets.SubstrateAllocationSnippets

All Implemented Interfaces:

org.graalvm.compiler.replacements.Snippets

public abstract class SubstrateAllocationSnippets
extends org.graalvm.compiler.replacements.AllocationSnippets

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	SubstrateAllocationSnippets.SubstrateAllocationProfilingData
static class	SubstrateAllocationSnippets.Templates

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

org.graalvm.compiler.replacements.AllocationSnippets.AllocationProfilingData, org.graalvm.compiler.replacements.AllocationSnippets.AllocationSnippetCounters, org.graalvm.compiler.replacements.AllocationSnippets.FillContent

Field Summary

Fields

Modifier and Type	Field and Description
static Object[]	ALLOCATION_LOCATIONS
static org.graalvm.word.LocationIdentity	TLAB_END_IDENTITY
static org.graalvm.word.LocationIdentity[]	TLAB_LOCATIONS
static org.graalvm.word.LocationIdentity	TLAB_TOP_IDENTITY

Constructor Summary

Constructors

Constructor and Description
SubstrateAllocationSnippets()

Method Summary

Modifier and Type	Method and Description
protected static int	afterArrayLengthOffset()
Object	allocateArray(DynamicHub hub, int length, int arrayBaseOffset, int log2ElementSize, org.graalvm.compiler.replacements.AllocationSnippets.FillContent fillContents, int fillStartOffset, boolean emitMemoryBarrier, boolean maybeUnroll, boolean supportsBulkZeroing, boolean supportsOptimizedFilling, org.graalvm.compiler.replacements.AllocationSnippets.AllocationProfilingData profilingData)
Object	allocateArrayDynamic(DynamicHub elementType, int length, org.graalvm.compiler.replacements.AllocationSnippets.FillContent fillContents, boolean emitMemoryBarrier, boolean supportsBulkZeroing, boolean supportsOptimizedFilling, org.graalvm.compiler.replacements.AllocationSnippets.AllocationProfilingData profilingData)
protected Object	allocateInstance(DynamicHub hub, long size, org.graalvm.compiler.replacements.AllocationSnippets.FillContent fillContents, boolean emitMemoryBarrier, org.graalvm.compiler.replacements.AllocationSnippets.AllocationProfilingData profilingData)
Object	allocateInstanceDynamic(DynamicHub hub, org.graalvm.compiler.replacements.AllocationSnippets.FillContent fillContents, boolean emitMemoryBarrier, org.graalvm.compiler.replacements.AllocationSnippets.AllocationProfilingData profilingData)
protected Object	allocateStoredContinuationInstance(DynamicHub hub, long size, org.graalvm.compiler.replacements.AllocationSnippets.AllocationProfilingData profilingData)
int	arrayLengthOffset()
protected Object	callNewArrayStub(org.graalvm.compiler.word.Word objectHeader, int length, int fillStartOffset)
protected Object	callNewInstanceStub(org.graalvm.compiler.word.Word objectHeader)
protected Object	callNewInstanceStub(org.graalvm.compiler.word.Word objectHeader, org.graalvm.word.UnsignedWord size)
protected Object	callNewMultiArrayStub(org.graalvm.compiler.word.Word objectHeader, int rank, org.graalvm.compiler.word.Word dims)
static org.graalvm.compiler.word.Word	encodeAsTLABObjectHeader(DynamicHub hub)
static DynamicHub	ensureMarkedAsInstantiated(DynamicHub hub) Verify that we do not need to check at run time if a type coming from a NewInstanceNode or NewArrayNode is instantiated.
protected static int	getArrayBaseOffset(int layoutEncoding)
protected int	getMinimalBulkZeroingSize()
protected int	getPrefetchDistance()
protected int	getPrefetchLines(boolean isArray)
protected int	getPrefetchStepSize()
protected int	getPrefetchStyle()
protected abstract SnippetRuntime.SubstrateForeignCallDescriptor	getSlowNewArrayStub()
protected abstract SnippetRuntime.SubstrateForeignCallDescriptor	getSlowNewInstanceStub()
protected int	instanceHeaderSize()
protected Object	newmultiarray(DynamicHub hub, int rank, int[] dimensions)
protected int	objectAlignment()
protected void	profileAllocation(org.graalvm.compiler.replacements.AllocationSnippets.AllocationProfilingData profilingData, org.graalvm.word.UnsignedWord size)
static void	registerForeignCalls(SubstrateForeignCallsProvider foreignCalls)
protected Object	verifyOop(Object obj)

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

allocateArrayImpl, allocateInstanceImpl, arrayAllocationSize, emitPrefetchAllocate, fillMemoryAligned, fillMemoryAlignedUnrollable, formatArray, formatObject, getTLABInfo, initializeObjectHeader, newMultiArrayImpl, readTlabEnd, readTlabTop, shouldAllocateInTLAB, useTLAB, writeTlabTop

Methods inherited from class java.lang.Object

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

Field Detail

TLAB_TOP_IDENTITY

public static final org.graalvm.word.LocationIdentity TLAB_TOP_IDENTITY

TLAB_END_IDENTITY

public static final org.graalvm.word.LocationIdentity TLAB_END_IDENTITY

ALLOCATION_LOCATIONS

public static final Object[] ALLOCATION_LOCATIONS

TLAB_LOCATIONS

public static final org.graalvm.word.LocationIdentity[] TLAB_LOCATIONS

Constructor Detail

SubstrateAllocationSnippets

public SubstrateAllocationSnippets()

Method Detail

registerForeignCalls

public static void registerForeignCalls(SubstrateForeignCallsProvider foreignCalls)

allocateInstance

protected Object allocateInstance(DynamicHub hub,
                                  long size,
                                  org.graalvm.compiler.replacements.AllocationSnippets.FillContent fillContents,
                                  boolean emitMemoryBarrier,
                                  org.graalvm.compiler.replacements.AllocationSnippets.AllocationProfilingData profilingData)

allocateStoredContinuationInstance

protected Object allocateStoredContinuationInstance(DynamicHub hub,
                                                    long size,
                                                    org.graalvm.compiler.replacements.AllocationSnippets.AllocationProfilingData profilingData)

allocateArray

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

allocateInstanceDynamic

public Object allocateInstanceDynamic(DynamicHub hub,
                                      org.graalvm.compiler.replacements.AllocationSnippets.FillContent fillContents,
                                      boolean emitMemoryBarrier,
                                      org.graalvm.compiler.replacements.AllocationSnippets.AllocationProfilingData profilingData)

allocateArrayDynamic

public Object allocateArrayDynamic(DynamicHub elementType,
                                   int length,
                                   org.graalvm.compiler.replacements.AllocationSnippets.FillContent fillContents,
                                   boolean emitMemoryBarrier,
                                   boolean supportsBulkZeroing,
                                   boolean supportsOptimizedFilling,
                                   org.graalvm.compiler.replacements.AllocationSnippets.AllocationProfilingData profilingData)

newmultiarray

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

getPrefetchStyle

protected final int getPrefetchStyle()

Specified by:

getPrefetchStyle in class org.graalvm.compiler.replacements.AllocationSnippets

getPrefetchLines

protected int getPrefetchLines(boolean isArray)

Specified by:

getPrefetchLines in class org.graalvm.compiler.replacements.AllocationSnippets

getPrefetchStepSize

protected final int getPrefetchStepSize()

Specified by:

getPrefetchStepSize in class org.graalvm.compiler.replacements.AllocationSnippets

getPrefetchDistance

protected final int getPrefetchDistance()

Specified by:

getPrefetchDistance in class org.graalvm.compiler.replacements.AllocationSnippets

instanceHeaderSize

protected final int instanceHeaderSize()

Specified by:

instanceHeaderSize in class org.graalvm.compiler.replacements.AllocationSnippets

afterArrayLengthOffset

protected static int afterArrayLengthOffset()

profileAllocation

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

Specified by:

profileAllocation in class org.graalvm.compiler.replacements.AllocationSnippets

getMinimalBulkZeroingSize

protected int getMinimalBulkZeroingSize()

Specified by:

getMinimalBulkZeroingSize in class org.graalvm.compiler.replacements.AllocationSnippets

verifyOop

protected final Object verifyOop(Object obj)

Specified by:

verifyOop in class org.graalvm.compiler.replacements.AllocationSnippets

arrayLengthOffset

public final int arrayLengthOffset()

Specified by:

arrayLengthOffset in class org.graalvm.compiler.replacements.AllocationSnippets

objectAlignment

protected final int objectAlignment()

Specified by:

objectAlignment in class org.graalvm.compiler.replacements.AllocationSnippets

getArrayBaseOffset

protected static int getArrayBaseOffset(int layoutEncoding)

encodeAsTLABObjectHeader

public static org.graalvm.compiler.word.Word encodeAsTLABObjectHeader(DynamicHub hub)

callNewInstanceStub

protected final Object callNewInstanceStub(org.graalvm.compiler.word.Word objectHeader,
                                           org.graalvm.word.UnsignedWord size)

Overrides:

callNewInstanceStub in class org.graalvm.compiler.replacements.AllocationSnippets

callNewInstanceStub

protected final Object callNewInstanceStub(org.graalvm.compiler.word.Word objectHeader)

Specified by:

callNewInstanceStub in class org.graalvm.compiler.replacements.AllocationSnippets

callNewArrayStub

protected final Object callNewArrayStub(org.graalvm.compiler.word.Word objectHeader,
                                        int length,
                                        int fillStartOffset)

Specified by:

callNewArrayStub in class org.graalvm.compiler.replacements.AllocationSnippets

callNewMultiArrayStub

protected final Object callNewMultiArrayStub(org.graalvm.compiler.word.Word objectHeader,
                                             int rank,
                                             org.graalvm.compiler.word.Word dims)

Specified by:

callNewMultiArrayStub in class org.graalvm.compiler.replacements.AllocationSnippets

getSlowNewInstanceStub

protected abstract SnippetRuntime.SubstrateForeignCallDescriptor getSlowNewInstanceStub()

getSlowNewArrayStub

protected abstract SnippetRuntime.SubstrateForeignCallDescriptor getSlowNewArrayStub()

ensureMarkedAsInstantiated

public static DynamicHub ensureMarkedAsInstantiated(DynamicHub hub)

Verify that we do not need to check at run time if a type coming from a NewInstanceNode or NewArrayNode is instantiated. All allocations with a constant type before static analysis result in the type being marked as instantiated. DynamicNewInstanceNode and DynamicNewArrayNode whose type gets folded to a constant late during compilation remain a dynamic allocation because MetaAccessExtensionProvider.canConstantFoldDynamicAllocation(jdk.vm.ci.meta.ResolvedJavaType) returns false.