org.graalvm.compiler.hotspot.replacements

Class HotSpotReplacementsUtil

java.lang.Object

org.graalvm.compiler.hotspot.replacements.HotSpotReplacementsUtil

public class HotSpotReplacementsUtil
extends Object

A collection of methods used in HotSpot snippets, substitutions and stubs.

Field Summary

Fields

Modifier and Type	Field and Description
static org.graalvm.word.LocationIdentity	ARRAY_KLASS_COMPONENT_MIRROR
static org.graalvm.word.LocationIdentity	CLASS_ARRAY_KLASS_LOCATION
static org.graalvm.word.LocationIdentity	CLASS_KLASS_LOCATION
static org.graalvm.word.LocationIdentity	CLASS_MIRROR_LOCATION
static org.graalvm.word.LocationIdentity	COMPRESSED_HUB_LOCATION
static org.graalvm.word.LocationIdentity	DISPLACED_MARK_WORD_LOCATION
static org.graalvm.word.LocationIdentity	EXCEPTION_OOP_LOCATION
static org.graalvm.word.LocationIdentity	EXCEPTION_PC_LOCATION
static org.graalvm.word.LocationIdentity	HOTSPOT_OOP_HANDLE_LOCATION This represents the contents of OopHandles used for some internal fields.
static org.graalvm.word.LocationIdentity	HUB_LOCATION
static org.graalvm.word.LocationIdentity	HUB_WRITE_LOCATION
static org.graalvm.word.LocationIdentity	JAVA_THREAD_OSTHREAD_LOCATION
static org.graalvm.word.LocationIdentity	JAVA_THREAD_THREAD_OBJECT_LOCATION
static org.graalvm.word.LocationIdentity	KLASS_ACCESS_FLAGS_LOCATION
static org.graalvm.word.LocationIdentity	KLASS_LAYOUT_HELPER_LOCATION
static org.graalvm.word.LocationIdentity	KLASS_MODIFIER_FLAGS_LOCATION
static org.graalvm.word.LocationIdentity	KLASS_SUPER_CHECK_OFFSET_LOCATION
static org.graalvm.word.LocationIdentity	KLASS_SUPER_KLASS_LOCATION
static org.graalvm.word.LocationIdentity	MARK_WORD_LOCATION
static org.graalvm.word.LocationIdentity	METASPACE_ARRAY_LENGTH_LOCATION
static org.graalvm.word.LocationIdentity	OBJ_ARRAY_KLASS_ELEMENT_KLASS_LOCATION
static org.graalvm.word.LocationIdentity	OBJECT_MONITOR_CXQ_LOCATION
static org.graalvm.word.LocationIdentity	OBJECT_MONITOR_ENTRY_LIST_LOCATION
static org.graalvm.word.LocationIdentity	OBJECT_MONITOR_OWNER_LOCATION
static org.graalvm.word.LocationIdentity	OBJECT_MONITOR_RECURSION_LOCATION
static org.graalvm.word.LocationIdentity	OBJECT_MONITOR_SUCC_LOCATION
static org.graalvm.word.LocationIdentity	PENDING_EXCEPTION_LOCATION
static org.graalvm.word.LocationIdentity	PRIMARY_SUPERS_LOCATION
static org.graalvm.word.LocationIdentity	PROTOTYPE_MARK_WORD_LOCATION
static org.graalvm.word.LocationIdentity	SECONDARY_SUPER_CACHE_LOCATION
static org.graalvm.word.LocationIdentity	SECONDARY_SUPERS_ELEMENT_LOCATION
static org.graalvm.word.LocationIdentity	SECONDARY_SUPERS_LOCATION
static org.graalvm.word.LocationIdentity	TLAB_END_LOCATION
static org.graalvm.word.LocationIdentity	TLAB_TOP_LOCATION

Constructor Summary

Constructors

Constructor and Description
HotSpotReplacementsUtil()

Method Summary

Modifier and Type	Method and Description
static int	ageMaskInPlace(GraalHotSpotVMConfig config)
static int	allocateInstancePrefetchLines(GraalHotSpotVMConfig config)
static int	allocatePrefetchDistance(GraalHotSpotVMConfig config)
static int	allocatePrefetchLines(GraalHotSpotVMConfig config)
static int	allocatePrefetchStepSize(GraalHotSpotVMConfig config)
static int	allocatePrefetchStyle(GraalHotSpotVMConfig config)
static int	arrayClassElementOffset(GraalHotSpotVMConfig config)
static int	arrayKlassOffset(GraalHotSpotVMConfig config)
static int	arrayLengthOffset(GraalHotSpotVMConfig config)
static Word	arrayStart(int[] a)
static int	backedgeCounterOffset(GraalHotSpotVMConfig config)
static int	biasedLockMaskInPlace(GraalHotSpotVMConfig config) Mask for a biasable, locked or unlocked mark word.
static int	biasedLockPattern(GraalHotSpotVMConfig config) Pattern for a biasable, unlocked mark word.
static int	cardTableShift(GraalHotSpotVMConfig config)
static long	cardTableStart(GraalHotSpotVMConfig config)
static Object	clearPendingException(Word thread) Clears the pending exception for the given thread.
static long	defaultPrototypeMarkWord(GraalHotSpotVMConfig config)
static boolean	diagnoseSyncOnValueBasedClasses(GraalHotSpotVMConfig config)
static byte	dirtyCardValue(GraalHotSpotVMConfig config)
static int	doingUnsafeAccessOffset(GraalHotSpotVMConfig config)
static int	epochMaskInPlace(GraalHotSpotVMConfig config)
static int	g1CardQueueBufferOffset(GraalHotSpotVMConfig config)
static int	g1CardQueueIndexOffset(GraalHotSpotVMConfig config)
static int	g1SATBQueueBufferOffset(GraalHotSpotVMConfig config)
static int	g1SATBQueueIndexOffset(GraalHotSpotVMConfig config)
static int	g1SATBQueueMarkingActiveOffset(GraalHotSpotVMConfig config)
static byte	g1YoungCardValue(GraalHotSpotVMConfig config)
static long	gcTotalCollectionsAddress(GraalHotSpotVMConfig config)
static ResolvedJavaField	getField(ResolvedJavaType type, String fieldName)
static int	getFieldOffset(ResolvedJavaType type, String fieldName)
static int	getHeapWordSize(GraalHotSpotVMConfig injectedVMConfig)
static Object	getPendingException(Word thread) Gets the pending exception for the given thread.
static ResolvedJavaType	getType(ResolvedJavaType accessingClass, String typeName)
static JavaKind	getWordKind()
static int	identityHashCode(ForeignCallDescriptor descriptor, Object object)
static void	initializeObjectHeader(Word memory, Word markWord, KlassPointer hub)
static int	instanceHeaderSize(GraalHotSpotVMConfig config)
static int	instanceKlassStateBeingInitialized(GraalHotSpotVMConfig config)
static int	instanceKlassStateFullyInitialized(GraalHotSpotVMConfig config)
static int	invocationCounterIncrement(GraalHotSpotVMConfig config)
static int	invocationCounterOffset(GraalHotSpotVMConfig config)
static int	invocationCounterShift(GraalHotSpotVMConfig config)
static boolean	isInstanceKlassFullyInitialized(KlassPointer hub)
static int	jvmAccHasFinalizer(GraalHotSpotVMConfig config)
static int	jvmAccIsValueBasedClass(GraalHotSpotVMConfig config)
static int	klassAccessFlagsOffset(GraalHotSpotVMConfig config)
static boolean	klassIsArray(KlassPointer klassNonNull) Checks if class klass is an array.
static int	klassLayoutHelperNeutralValue(GraalHotSpotVMConfig config)
static int	klassModifierFlagsOffset(GraalHotSpotVMConfig config)
static int	layoutHelperHeaderSizeMask(GraalHotSpotVMConfig config)
static int	layoutHelperHeaderSizeShift(GraalHotSpotVMConfig config)
static int	layoutHelperLog2ElementSizeMask(GraalHotSpotVMConfig config)
static int	layoutHelperLog2ElementSizeShift(GraalHotSpotVMConfig config)
static KlassPointer	loadHub(Object object) Loads the hub of an object (without null checking it first).
static KlassPointer	loadHubIntrinsic(Object object)
static KlassPointer	loadHubOrNullIntrinsic(Object object)
static KlassPointer	loadKlassFromObject(Object object, int offset, org.graalvm.word.LocationIdentity identity)
static Word	loadWordFromObject(Object object, int offset)
static Word	loadWordFromObject(Object object, int offset, org.graalvm.word.LocationIdentity identity)
static int	lockDisplacedMarkOffset(GraalHotSpotVMConfig config)
static int	logOfHeapRegionGrainBytes(GraalHotSpotVMConfig config)
static int	markOffset(GraalHotSpotVMConfig config)
static int	metaspaceArrayBaseOffset(GraalHotSpotVMConfig config)
static int	metaspaceArrayLengthOffset(GraalHotSpotVMConfig config)
static int	monitorMask(GraalHotSpotVMConfig config)
static int	objectAlignment(GraalHotSpotVMConfig config) Idiom for making GraalHotSpotVMConfig a constant.
static int	objectMonitorCxqOffset(GraalHotSpotVMConfig config)
static int	objectMonitorEntryListOffset(GraalHotSpotVMConfig config)
static int	objectMonitorOwnerOffset(GraalHotSpotVMConfig config)
static int	objectMonitorRecursionsOffset(GraalHotSpotVMConfig config)
static int	objectMonitorSuccOffset(GraalHotSpotVMConfig config)
static int	pageSize(GraalHotSpotVMConfig config)
static int	prototypeMarkWordOffset(GraalHotSpotVMConfig config)
static Object	readExceptionOop(Word thread)
static Word	readExceptionPc(Word thread)
static int	readLayoutHelper(KlassPointer object)
static Word	readTlabEnd(Word thread)
static Word	readTlabTop(Word thread)
static ResolvedJavaType	referenceType(MetaAccessProvider metaAccessProvider)
static ResolvedJavaField	referentField(MetaAccessProvider metaAccessProvider)
static String	referentFieldName()
static long	referentOffset(MetaAccessProvider metaAccessProvider)
static Word	registerAsWord(Register register) Reads the value of a given register.
static Word	registerAsWord(Register register, boolean directUse, boolean incoming)
static HotSpotJVMCIRuntime	runtime()
static int	secondarySuperCacheOffset(GraalHotSpotVMConfig config)
static int	secondarySupersOffset(GraalHotSpotVMConfig config)
static int	stackBias(GraalHotSpotVMConfig config)
static int	superCheckOffsetOffset(GraalHotSpotVMConfig config)
static int	threadExceptionOopOffset(GraalHotSpotVMConfig config)
static int	threadExceptionPcOffset(GraalHotSpotVMConfig config)
static int	threadTlabTopOffset(GraalHotSpotVMConfig config)
static int	unlockedMask(GraalHotSpotVMConfig config)
static boolean	useBiasedLocking(GraalHotSpotVMConfig config)
static boolean	useG1GC(GraalHotSpotVMConfig config)
static boolean	useTLAB(GraalHotSpotVMConfig config)
static boolean	verifyBeforeOrAfterGC(GraalHotSpotVMConfig config)
static Object	verifyOop(Object object)
static long	verifyOopBits(GraalHotSpotVMConfig config)
static long	verifyOopCounterAddress(GraalHotSpotVMConfig config)
static long	verifyOopMask(GraalHotSpotVMConfig config)
static boolean	verifyOops(GraalHotSpotVMConfig config)
static int	wordSize()
static void	writeExceptionOop(Word thread, Object value)
static void	writeExceptionPc(Word thread, Word value)
static void	writeTlabTop(Word thread, Word top)

Methods inherited from class java.lang.Object

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

Field Detail

EXCEPTION_OOP_LOCATION

public static final org.graalvm.word.LocationIdentity EXCEPTION_OOP_LOCATION

EXCEPTION_PC_LOCATION

public static final org.graalvm.word.LocationIdentity EXCEPTION_PC_LOCATION

TLAB_TOP_LOCATION

public static final org.graalvm.word.LocationIdentity TLAB_TOP_LOCATION

TLAB_END_LOCATION

public static final org.graalvm.word.LocationIdentity TLAB_END_LOCATION

PENDING_EXCEPTION_LOCATION

public static final org.graalvm.word.LocationIdentity PENDING_EXCEPTION_LOCATION

JAVA_THREAD_THREAD_OBJECT_LOCATION

public static final org.graalvm.word.LocationIdentity JAVA_THREAD_THREAD_OBJECT_LOCATION

JAVA_THREAD_OSTHREAD_LOCATION

public static final org.graalvm.word.LocationIdentity JAVA_THREAD_OSTHREAD_LOCATION

PROTOTYPE_MARK_WORD_LOCATION

public static final org.graalvm.word.LocationIdentity PROTOTYPE_MARK_WORD_LOCATION

KLASS_ACCESS_FLAGS_LOCATION

public static final org.graalvm.word.LocationIdentity KLASS_ACCESS_FLAGS_LOCATION

KLASS_LAYOUT_HELPER_LOCATION

public static final org.graalvm.word.LocationIdentity KLASS_LAYOUT_HELPER_LOCATION

ARRAY_KLASS_COMPONENT_MIRROR

public static final org.graalvm.word.LocationIdentity ARRAY_KLASS_COMPONENT_MIRROR

KLASS_SUPER_KLASS_LOCATION

public static final org.graalvm.word.LocationIdentity KLASS_SUPER_KLASS_LOCATION

MARK_WORD_LOCATION

public static final org.graalvm.word.LocationIdentity MARK_WORD_LOCATION

HUB_WRITE_LOCATION

public static final org.graalvm.word.LocationIdentity HUB_WRITE_LOCATION

HUB_LOCATION

public static final org.graalvm.word.LocationIdentity HUB_LOCATION

COMPRESSED_HUB_LOCATION

public static final org.graalvm.word.LocationIdentity COMPRESSED_HUB_LOCATION

KLASS_SUPER_CHECK_OFFSET_LOCATION

public static final org.graalvm.word.LocationIdentity KLASS_SUPER_CHECK_OFFSET_LOCATION

SECONDARY_SUPER_CACHE_LOCATION

public static final org.graalvm.word.LocationIdentity SECONDARY_SUPER_CACHE_LOCATION

SECONDARY_SUPERS_LOCATION

public static final org.graalvm.word.LocationIdentity SECONDARY_SUPERS_LOCATION

DISPLACED_MARK_WORD_LOCATION

public static final org.graalvm.word.LocationIdentity DISPLACED_MARK_WORD_LOCATION

OBJECT_MONITOR_OWNER_LOCATION

public static final org.graalvm.word.LocationIdentity OBJECT_MONITOR_OWNER_LOCATION

OBJECT_MONITOR_RECURSION_LOCATION

public static final org.graalvm.word.LocationIdentity OBJECT_MONITOR_RECURSION_LOCATION

OBJECT_MONITOR_CXQ_LOCATION

public static final org.graalvm.word.LocationIdentity OBJECT_MONITOR_CXQ_LOCATION

OBJECT_MONITOR_ENTRY_LIST_LOCATION

public static final org.graalvm.word.LocationIdentity OBJECT_MONITOR_ENTRY_LIST_LOCATION

OBJECT_MONITOR_SUCC_LOCATION

public static final org.graalvm.word.LocationIdentity OBJECT_MONITOR_SUCC_LOCATION

KLASS_MODIFIER_FLAGS_LOCATION

public static final org.graalvm.word.LocationIdentity KLASS_MODIFIER_FLAGS_LOCATION

CLASS_KLASS_LOCATION

public static final org.graalvm.word.LocationIdentity CLASS_KLASS_LOCATION

CLASS_ARRAY_KLASS_LOCATION

public static final org.graalvm.word.LocationIdentity CLASS_ARRAY_KLASS_LOCATION

CLASS_MIRROR_LOCATION

public static final org.graalvm.word.LocationIdentity CLASS_MIRROR_LOCATION

HOTSPOT_OOP_HANDLE_LOCATION

public static final org.graalvm.word.LocationIdentity HOTSPOT_OOP_HANDLE_LOCATION

This represents the contents of OopHandles used for some internal fields.

OBJ_ARRAY_KLASS_ELEMENT_KLASS_LOCATION

public static final org.graalvm.word.LocationIdentity OBJ_ARRAY_KLASS_ELEMENT_KLASS_LOCATION

PRIMARY_SUPERS_LOCATION

public static final org.graalvm.word.LocationIdentity PRIMARY_SUPERS_LOCATION

METASPACE_ARRAY_LENGTH_LOCATION

public static final org.graalvm.word.LocationIdentity METASPACE_ARRAY_LENGTH_LOCATION

SECONDARY_SUPERS_ELEMENT_LOCATION

public static final org.graalvm.word.LocationIdentity SECONDARY_SUPERS_ELEMENT_LOCATION

Constructor Detail

HotSpotReplacementsUtil

public HotSpotReplacementsUtil()

Method Detail

getType

public static ResolvedJavaType getType(ResolvedJavaType accessingClass,
                                       String typeName)

getFieldOffset

public static int getFieldOffset(ResolvedJavaType type,
                                 String fieldName)

getField

public static ResolvedJavaField getField(ResolvedJavaType type,
                                         String fieldName)

runtime

public static HotSpotJVMCIRuntime runtime()

getHeapWordSize

public static int getHeapWordSize(GraalHotSpotVMConfig injectedVMConfig)

klassLayoutHelperNeutralValue

public static int klassLayoutHelperNeutralValue(GraalHotSpotVMConfig config)

useTLAB

public static boolean useTLAB(GraalHotSpotVMConfig config)

useG1GC

public static boolean useG1GC(GraalHotSpotVMConfig config)

doingUnsafeAccessOffset

public static int doingUnsafeAccessOffset(GraalHotSpotVMConfig config)

See Also:

GraalHotSpotVMConfig.doingUnsafeAccessOffset

threadExceptionOopOffset

public static int threadExceptionOopOffset(GraalHotSpotVMConfig config)

See Also:

GraalHotSpotVMConfig.threadExceptionOopOffset

threadExceptionPcOffset

public static int threadExceptionPcOffset(GraalHotSpotVMConfig config)

threadTlabTopOffset

public static int threadTlabTopOffset(GraalHotSpotVMConfig config)

readExceptionOop

public static Object readExceptionOop(Word thread)

See Also:

GraalHotSpotVMConfig.threadExceptionOopOffset

readExceptionPc

public static Word readExceptionPc(Word thread)

writeExceptionOop

public static void writeExceptionOop(Word thread,
                                     Object value)

See Also:

GraalHotSpotVMConfig.threadExceptionOopOffset

writeExceptionPc

public static void writeExceptionPc(Word thread,
                                    Word value)

readTlabTop

public static Word readTlabTop(Word thread)

readTlabEnd

public static Word readTlabEnd(Word thread)

writeTlabTop

public static void writeTlabTop(Word thread,
                                Word top)

clearPendingException

public static Object clearPendingException(Word thread)

Clears the pending exception for the given thread.

Returns:

the pending exception, or null if there was none

getPendingException

public static Object getPendingException(Word thread)

Gets the pending exception for the given thread.

Returns:

the pending exception, or null if there was none

getWordKind

public static JavaKind getWordKind()

wordSize

public static int wordSize()

pageSize

public static int pageSize(GraalHotSpotVMConfig config)

prototypeMarkWordOffset

public static int prototypeMarkWordOffset(GraalHotSpotVMConfig config)

klassAccessFlagsOffset

public static int klassAccessFlagsOffset(GraalHotSpotVMConfig config)

jvmAccHasFinalizer

public static int jvmAccHasFinalizer(GraalHotSpotVMConfig config)

allocatePrefetchStyle

public static int allocatePrefetchStyle(GraalHotSpotVMConfig config)

allocatePrefetchLines

public static int allocatePrefetchLines(GraalHotSpotVMConfig config)

allocatePrefetchDistance

public static int allocatePrefetchDistance(GraalHotSpotVMConfig config)

allocateInstancePrefetchLines

public static int allocateInstancePrefetchLines(GraalHotSpotVMConfig config)

allocatePrefetchStepSize

public static int allocatePrefetchStepSize(GraalHotSpotVMConfig config)

invocationCounterIncrement

public static int invocationCounterIncrement(GraalHotSpotVMConfig config)

invocationCounterOffset

public static int invocationCounterOffset(GraalHotSpotVMConfig config)

backedgeCounterOffset

public static int backedgeCounterOffset(GraalHotSpotVMConfig config)

invocationCounterShift

public static int invocationCounterShift(GraalHotSpotVMConfig config)

stackBias

public static int stackBias(GraalHotSpotVMConfig config)

readLayoutHelper

public static int readLayoutHelper(KlassPointer object)

klassIsArray

public static boolean klassIsArray(KlassPointer klassNonNull)

Checks if class klass is an array. See: Klass::layout_helper_is_array

Parameters:

klassNonNull - the class to be checked

Returns:

true if klassNonNull is an array, false otherwise

markOffset

public static int markOffset(GraalHotSpotVMConfig config)

initializeObjectHeader

public static void initializeObjectHeader(Word memory,
                                          Word markWord,
                                          KlassPointer hub)

unlockedMask

public static int unlockedMask(GraalHotSpotVMConfig config)

monitorMask

public static int monitorMask(GraalHotSpotVMConfig config)

objectMonitorOwnerOffset

public static int objectMonitorOwnerOffset(GraalHotSpotVMConfig config)

objectMonitorRecursionsOffset

public static int objectMonitorRecursionsOffset(GraalHotSpotVMConfig config)

objectMonitorCxqOffset

public static int objectMonitorCxqOffset(GraalHotSpotVMConfig config)

objectMonitorEntryListOffset

public static int objectMonitorEntryListOffset(GraalHotSpotVMConfig config)

objectMonitorSuccOffset

public static int objectMonitorSuccOffset(GraalHotSpotVMConfig config)

biasedLockMaskInPlace

public static int biasedLockMaskInPlace(GraalHotSpotVMConfig config)

Mask for a biasable, locked or unlocked mark word.

 +----------------------------------+-+-+
 |                                 1|1|1|
 +----------------------------------+-+-+
 

epochMaskInPlace

public static int epochMaskInPlace(GraalHotSpotVMConfig config)

biasedLockPattern

public static int biasedLockPattern(GraalHotSpotVMConfig config)

Pattern for a biasable, unlocked mark word.

 +----------------------------------+-+-+
 |                                 1|0|1|
 +----------------------------------+-+-+
 

ageMaskInPlace

public static int ageMaskInPlace(GraalHotSpotVMConfig config)

metaspaceArrayLengthOffset

public static int metaspaceArrayLengthOffset(GraalHotSpotVMConfig config)

metaspaceArrayBaseOffset

public static int metaspaceArrayBaseOffset(GraalHotSpotVMConfig config)

arrayLengthOffset

public static int arrayLengthOffset(GraalHotSpotVMConfig config)

arrayStart

public static Word arrayStart(int[] a)

verifyBeforeOrAfterGC

public static boolean verifyBeforeOrAfterGC(GraalHotSpotVMConfig config)

objectAlignment

public static int objectAlignment(GraalHotSpotVMConfig config)

Idiom for making GraalHotSpotVMConfig a constant.

instanceHeaderSize

public static int instanceHeaderSize(GraalHotSpotVMConfig config)

dirtyCardValue

public static byte dirtyCardValue(GraalHotSpotVMConfig config)

g1YoungCardValue

public static byte g1YoungCardValue(GraalHotSpotVMConfig config)

cardTableShift

public static int cardTableShift(GraalHotSpotVMConfig config)

cardTableStart

public static long cardTableStart(GraalHotSpotVMConfig config)

g1CardQueueIndexOffset

public static int g1CardQueueIndexOffset(GraalHotSpotVMConfig config)

g1CardQueueBufferOffset

public static int g1CardQueueBufferOffset(GraalHotSpotVMConfig config)

logOfHeapRegionGrainBytes

public static int logOfHeapRegionGrainBytes(GraalHotSpotVMConfig config)

g1SATBQueueMarkingActiveOffset

public static int g1SATBQueueMarkingActiveOffset(GraalHotSpotVMConfig config)

g1SATBQueueIndexOffset

public static int g1SATBQueueIndexOffset(GraalHotSpotVMConfig config)

g1SATBQueueBufferOffset

public static int g1SATBQueueBufferOffset(GraalHotSpotVMConfig config)

superCheckOffsetOffset

public static int superCheckOffsetOffset(GraalHotSpotVMConfig config)

secondarySuperCacheOffset

public static int secondarySuperCacheOffset(GraalHotSpotVMConfig config)

secondarySupersOffset

public static int secondarySupersOffset(GraalHotSpotVMConfig config)

lockDisplacedMarkOffset

public static int lockDisplacedMarkOffset(GraalHotSpotVMConfig config)

useBiasedLocking

public static boolean useBiasedLocking(GraalHotSpotVMConfig config)

diagnoseSyncOnValueBasedClasses

public static boolean diagnoseSyncOnValueBasedClasses(GraalHotSpotVMConfig config)

jvmAccIsValueBasedClass

public static int jvmAccIsValueBasedClass(GraalHotSpotVMConfig config)

defaultPrototypeMarkWord

public static long defaultPrototypeMarkWord(GraalHotSpotVMConfig config)

loadHub

public static KlassPointer loadHub(Object object)

Loads the hub of an object (without null checking it first).

verifyOops

public static boolean verifyOops(GraalHotSpotVMConfig config)

verifyOop

public static Object verifyOop(Object object)

verifyOopBits

public static long verifyOopBits(GraalHotSpotVMConfig config)

verifyOopMask

public static long verifyOopMask(GraalHotSpotVMConfig config)

verifyOopCounterAddress

public static long verifyOopCounterAddress(GraalHotSpotVMConfig config)

loadWordFromObject

public static Word loadWordFromObject(Object object,
                                      int offset)

loadWordFromObject

public static Word loadWordFromObject(Object object,
                                      int offset,
                                      org.graalvm.word.LocationIdentity identity)

loadKlassFromObject

public static KlassPointer loadKlassFromObject(Object object,
                                               int offset,
                                               org.graalvm.word.LocationIdentity identity)

registerAsWord

public static Word registerAsWord(Register register)

Reads the value of a given register.

Parameters:

register - a register which must not be available to the register allocator

Returns:

the value of register as a word

registerAsWord

public static Word registerAsWord(Register register,
                                  boolean directUse,
                                  boolean incoming)

loadHubIntrinsic

public static KlassPointer loadHubIntrinsic(Object object)

loadHubOrNullIntrinsic

public static KlassPointer loadHubOrNullIntrinsic(Object object)

instanceKlassStateFullyInitialized

public static int instanceKlassStateFullyInitialized(GraalHotSpotVMConfig config)

instanceKlassStateBeingInitialized

public static int instanceKlassStateBeingInitialized(GraalHotSpotVMConfig config)

isInstanceKlassFullyInitialized

public static boolean isInstanceKlassFullyInitialized(KlassPointer hub)

Parameters:

hub - the hub of an InstanceKlass

Returns:

true is the InstanceKlass represented by hub is fully initialized

klassModifierFlagsOffset

public static int klassModifierFlagsOffset(GraalHotSpotVMConfig config)

arrayKlassOffset

public static int arrayKlassOffset(GraalHotSpotVMConfig config)

layoutHelperHeaderSizeShift

public static int layoutHelperHeaderSizeShift(GraalHotSpotVMConfig config)

layoutHelperHeaderSizeMask

public static int layoutHelperHeaderSizeMask(GraalHotSpotVMConfig config)

layoutHelperLog2ElementSizeShift

public static int layoutHelperLog2ElementSizeShift(GraalHotSpotVMConfig config)

layoutHelperLog2ElementSizeMask

public static int layoutHelperLog2ElementSizeMask(GraalHotSpotVMConfig config)

identityHashCode

public static int identityHashCode(ForeignCallDescriptor descriptor,
                                   Object object)

gcTotalCollectionsAddress

public static long gcTotalCollectionsAddress(GraalHotSpotVMConfig config)

referentFieldName

public static String referentFieldName()

referentOffset

public static long referentOffset(MetaAccessProvider metaAccessProvider)

referentField

public static ResolvedJavaField referentField(MetaAccessProvider metaAccessProvider)

referenceType

public static ResolvedJavaType referenceType(MetaAccessProvider metaAccessProvider)

arrayClassElementOffset

public static int arrayClassElementOffset(GraalHotSpotVMConfig config)