com.oracle.graal.hotspot.replacements.arraycopy

Class ArrayCopySnippets

java.lang.Object

com.oracle.graal.hotspot.replacements.arraycopy.ArrayCopySnippets

All Implemented Interfaces:

Snippets

public class ArrayCopySnippets
extends Object
implements Snippets

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ArrayCopySnippets.Templates

Field Summary

Fields

Modifier and Type	Field and Description
private static EnumMap<Kind,SnippetCounter>	arraycopyCallCopiedCounters
private static EnumMap<Kind,SnippetCounter>	arraycopyCallCounters
private static EnumMap<Kind,SnippetCounter>	arraycopyCopiedCounters
private static EnumMap<Kind,SnippetCounter>	arraycopyCounters
private static SnippetCounter	checkAIOOBECounter
private static SnippetCounter.Group	checkCounters
private static SnippetCounter	checkSuccessCounter
private static SnippetCounter.Group	copiedCounters
private static SnippetCounter.Group	counters
private static SnippetCounter	genericObjectExactCallCopiedCounter
private static SnippetCounter	genericObjectExactCallCounter
private static SnippetCounter	genericPrimitiveCallCopiedCounter
private static SnippetCounter	genericPrimitiveCallCounter
private static SnippetCounter.Group	lengthCounters
private static SnippetCounter	nonZeroLengthDynamicCopiedCounter
private static SnippetCounter	nonZeroLengthDynamicCounter
private static SnippetCounter	objectCheckcastCopiedCounter
private static SnippetCounter	objectCheckcastCounter
private static SnippetCounter	objectCheckcastSameTypeCopiedCounter
private static SnippetCounter	objectCheckcastSameTypeCounter
private static SnippetCounter	predictedObjectArrayCopyFastPathCopiedCounter
private static SnippetCounter	predictedObjectArrayCopyFastPathCounter
private static SnippetCounter	predictedObjectArrayCopySlowPathCopiedCounter
private static SnippetCounter	predictedObjectArrayCopySlowPathCounter
private static SnippetCounter	SystemArraycopyCopiedCounter
private static SnippetCounter	SystemArraycopyCounter
private static SnippetCounter	zeroLengthDynamicCounter
private static SnippetCounter	zeroLengthStaticCounter

Constructor Summary

Constructors

Constructor and Description
ArrayCopySnippets()

Method Summary

Modifier and Type	Method and Description
static void	arraycopyExactIntrinsic(Object src, int srcPos, Object dest, int destPos, int length, Kind elementKind, SnippetCounter counter, SnippetCounter copiedCounter)
static void	arraycopyGeneric(Object src, int srcPos, Object dest, int destPos, int length)
static void	arraycopyPredictedExactIntrinsic(Object src, int srcPos, Object dest, int destPos, int length, Kind elementKind, SnippetCounter counter, SnippetCounter copiedCounter) This intrinsic is useful for the case where we know something statically about one of the inputs but not the other.
static void	arraycopyPredictedObjectWork(Object nonNullSrc, int srcPos, Object nonNullDest, int destPos, int length, KlassPointer objectArrayKlass, SnippetCounter counter, SnippetCounter copiedCounter)
static void	arraycopySlowPathIntrinsic(Object src, int srcPos, Object dest, int destPos, int length, Kind elementKind, SnippetTemplate.SnippetInfo slowPath, Object slowPathArgument) This is the basic template for the full arraycopy checks, including a check that the underlying type is really an array type.
static void	arraycopyUnrolledIntrinsic(Object src, int srcPos, Object dest, int destPos, int length, int unrolledLength, Kind elementKind) Snippet for unrolled arraycopy.
static void	arraycopyUnrolledWork(Object nonNullSrc, int srcPos, Object nonNullDest, int destPos, int length, Kind elementKind)
static void	arraycopyZeroLengthIntrinsic(Object src, int srcPos, Object dest, int destPos, int length)
private static int	checkArrayType(KlassPointer hub)
static void	checkcastArraycopyWork(Object nonNullSrc, int srcPos, Object nonNullDest, int destPos, int length)
private static void	checkLimits(Object src, int srcPos, Object dest, int destPos, int length)
(package private) static void	createArraycopyCounter(Kind kind)
private static LocationIdentity	getArrayLocation(Kind kind)

Methods inherited from class java.lang.Object

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

Field Detail

checkCounters

private static final SnippetCounter.Group checkCounters

checkSuccessCounter

private static final SnippetCounter checkSuccessCounter

checkAIOOBECounter

private static final SnippetCounter checkAIOOBECounter

counters

private static final SnippetCounter.Group counters

objectCheckcastCounter

private static final SnippetCounter objectCheckcastCounter

objectCheckcastSameTypeCounter

private static final SnippetCounter objectCheckcastSameTypeCounter

predictedObjectArrayCopySlowPathCounter

private static final SnippetCounter predictedObjectArrayCopySlowPathCounter

predictedObjectArrayCopyFastPathCounter

private static final SnippetCounter predictedObjectArrayCopyFastPathCounter

arraycopyCallCounters

private static final EnumMap<Kind,SnippetCounter> arraycopyCallCounters

arraycopyCounters

private static final EnumMap<Kind,SnippetCounter> arraycopyCounters

arraycopyCallCopiedCounters

private static final EnumMap<Kind,SnippetCounter> arraycopyCallCopiedCounters

arraycopyCopiedCounters

private static final EnumMap<Kind,SnippetCounter> arraycopyCopiedCounters

genericPrimitiveCallCounter

private static final SnippetCounter genericPrimitiveCallCounter

genericObjectExactCallCounter

private static final SnippetCounter genericObjectExactCallCounter

SystemArraycopyCounter

private static final SnippetCounter SystemArraycopyCounter

lengthCounters

private static final SnippetCounter.Group lengthCounters

zeroLengthStaticCounter

private static final SnippetCounter zeroLengthStaticCounter

zeroLengthDynamicCounter

private static final SnippetCounter zeroLengthDynamicCounter

nonZeroLengthDynamicCounter

private static final SnippetCounter nonZeroLengthDynamicCounter

copiedCounters

private static final SnippetCounter.Group copiedCounters

nonZeroLengthDynamicCopiedCounter

private static final SnippetCounter nonZeroLengthDynamicCopiedCounter

genericPrimitiveCallCopiedCounter

private static final SnippetCounter genericPrimitiveCallCopiedCounter

genericObjectExactCallCopiedCounter

private static final SnippetCounter genericObjectExactCallCopiedCounter

SystemArraycopyCopiedCounter

private static final SnippetCounter SystemArraycopyCopiedCounter

objectCheckcastCopiedCounter

private static final SnippetCounter objectCheckcastCopiedCounter

objectCheckcastSameTypeCopiedCounter

private static final SnippetCounter objectCheckcastSameTypeCopiedCounter

predictedObjectArrayCopySlowPathCopiedCounter

private static final SnippetCounter predictedObjectArrayCopySlowPathCopiedCounter

predictedObjectArrayCopyFastPathCopiedCounter

private static final SnippetCounter predictedObjectArrayCopyFastPathCopiedCounter

Constructor Detail

ArrayCopySnippets

public ArrayCopySnippets()

Method Detail

checkArrayType

private static int checkArrayType(KlassPointer hub)

checkLimits

private static void checkLimits(Object src,
                                int srcPos,
                                Object dest,
                                int destPos,
                                int length)

arraycopyZeroLengthIntrinsic

public static void arraycopyZeroLengthIntrinsic(Object src,
                                                int srcPos,
                                                Object dest,
                                                int destPos,
                                                int length)

arraycopyExactIntrinsic

public static void arraycopyExactIntrinsic(Object src,
                                           int srcPos,
                                           Object dest,
                                           int destPos,
                                           int length,
                                           Kind elementKind,
                                           SnippetCounter counter,
                                           SnippetCounter copiedCounter)

arraycopyPredictedExactIntrinsic

public static void arraycopyPredictedExactIntrinsic(Object src,
                                                    int srcPos,
                                                    Object dest,
                                                    int destPos,
                                                    int length,
                                                    Kind elementKind,
                                                    SnippetCounter counter,
                                                    SnippetCounter copiedCounter)

This intrinsic is useful for the case where we know something statically about one of the inputs but not the other.

arraycopyPredictedObjectWork

public static void arraycopyPredictedObjectWork(Object nonNullSrc,
                                                int srcPos,
                                                Object nonNullDest,
                                                int destPos,
                                                int length,
                                                KlassPointer objectArrayKlass,
                                                SnippetCounter counter,
                                                SnippetCounter copiedCounter)

arraycopySlowPathIntrinsic

public static void arraycopySlowPathIntrinsic(Object src,
                                              int srcPos,
                                              Object dest,
                                              int destPos,
                                              int length,
                                              Kind elementKind,
                                              SnippetTemplate.SnippetInfo slowPath,
                                              Object slowPathArgument)

This is the basic template for the full arraycopy checks, including a check that the underlying type is really an array type.

arraycopyUnrolledIntrinsic

public static void arraycopyUnrolledIntrinsic(Object src,
                                              int srcPos,
                                              Object dest,
                                              int destPos,
                                              int length,
                                              int unrolledLength,
                                              Kind elementKind)

Snippet for unrolled arraycopy.

checkcastArraycopyWork

public static void checkcastArraycopyWork(Object nonNullSrc,
                                          int srcPos,
                                          Object nonNullDest,
                                          int destPos,
                                          int length)

arraycopyGeneric

public static void arraycopyGeneric(Object src,
                                    int srcPos,
                                    Object dest,
                                    int destPos,
                                    int length)

getArrayLocation

private static LocationIdentity getArrayLocation(Kind kind)

arraycopyUnrolledWork

public static void arraycopyUnrolledWork(Object nonNullSrc,
                                         int srcPos,
                                         Object nonNullDest,
                                         int destPos,
                                         int length,
                                         Kind elementKind)

createArraycopyCounter

static void createArraycopyCounter(Kind kind)