1 /*
  2  * Copyright (c) 2017, 2021, Oracle and/or its affiliates. All rights reserved.
  3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  4  *
  5  * This code is free software; you can redistribute it and/or modify it
  6  * under the terms of the GNU General Public License version 2 only, as
  7  * published by the Free Software Foundation.  Oracle designates this
  8  * particular file as subject to the "Classpath" exception as provided
  9  * by Oracle in the LICENSE file that accompanied this code.
 10  *
 11  * This code is distributed in the hope that it will be useful, but WITHOUT
 12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 14  * version 2 for more details (a copy is included in the LICENSE file that
 15  * accompanied this code).
 16  *
 17  * You should have received a copy of the GNU General Public License version
 18  * 2 along with this work; if not, write to the Free Software Foundation,
 19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 20  *
 21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 22  * or visit www.oracle.com if you need additional information or have any
 23  * questions.
 24  */
 25 package jdk.incubator.vector;
 26 
 27 import java.nio.ByteBuffer;
 28 import java.util.Arrays;
 29 import java.util.Objects;
 30 import java.util.function.IntUnaryOperator;
 31 
 32 import jdk.internal.vm.annotation.ForceInline;
 33 import jdk.internal.vm.vector.VectorSupport;
 34 
 35 import static jdk.internal.vm.vector.VectorSupport.*;
 36 
 37 import static jdk.incubator.vector.VectorOperators.*;
 38 
 39 // -- This file was mechanically generated: Do not edit! -- //
 40 
 41 @SuppressWarnings("cast")  // warning: redundant cast
 42 final class Long64Vector extends LongVector {
 43     static final LongSpecies VSPECIES =
 44         (LongSpecies) LongVector.SPECIES_64;
 45 
 46     static final VectorShape VSHAPE =
 47         VSPECIES.vectorShape();
 48 
 49     static final Class<Long64Vector> VCLASS = Long64Vector.class;
 50 
 51     static final int VSIZE = VSPECIES.vectorBitSize();
 52 
 53     static final int VLENGTH = VSPECIES.laneCount(); // used by the JVM
 54 
 55     static final Class<Long> ETYPE = long.class; // used by the JVM
 56 
 57     Long64Vector(long[] v) {
 58         super(v);
 59     }
 60 
 61     // For compatibility as Long64Vector::new,
 62     // stored into species.vectorFactory.
 63     Long64Vector(Object v) {
 64         this((long[]) v);
 65     }
 66 
 67     static final Long64Vector ZERO = new Long64Vector(new long[VLENGTH]);
 68     static final Long64Vector IOTA = new Long64Vector(VSPECIES.iotaArray());
 69 
 70     static {
 71         // Warm up a few species caches.
 72         // If we do this too much we will
 73         // get NPEs from bootstrap circularity.
 74         VSPECIES.dummyVector();
 75         VSPECIES.withLanes(LaneType.BYTE);
 76     }
 77 
 78     // Specialized extractors
 79 
 80     @ForceInline
 81     final @Override
 82     public LongSpecies vspecies() {
 83         // ISSUE:  This should probably be a @Stable
 84         // field inside AbstractVector, rather than
 85         // a megamorphic method.
 86         return VSPECIES;
 87     }
 88 
 89     @ForceInline
 90     @Override
 91     public final Class<Long> elementType() { return long.class; }
 92 
 93     @ForceInline
 94     @Override
 95     public final int elementSize() { return Long.SIZE; }
 96 
 97     @ForceInline
 98     @Override
 99     public final VectorShape shape() { return VSHAPE; }
100 
101     @ForceInline
102     @Override
103     public final int length() { return VLENGTH; }
104 
105     @ForceInline
106     @Override
107     public final int bitSize() { return VSIZE; }
108 
109     @ForceInline
110     @Override
111     public final int byteSize() { return VSIZE / Byte.SIZE; }
112 
113     /*package-private*/
114     @ForceInline
115     final @Override
116     long[] vec() {
117         return (long[])getPayload();
118     }
119 
120     // Virtualized constructors
121 
122     @Override
123     @ForceInline
124     public final Long64Vector broadcast(long e) {
125         return (Long64Vector) super.broadcastTemplate(e);  // specialize
126     }
127 
128 
129     @Override
130     @ForceInline
131     Long64Mask maskFromArray(boolean[] bits) {
132         return new Long64Mask(bits);
133     }
134 
135     @Override
136     @ForceInline
137     Long64Shuffle iotaShuffle() { return Long64Shuffle.IOTA; }
138 
139     @ForceInline
140     Long64Shuffle iotaShuffle(int start, int step, boolean wrap) {
141       if (wrap) {
142         return (Long64Shuffle)VectorSupport.shuffleIota(ETYPE, Long64Shuffle.class, VSPECIES, VLENGTH, start, step, 1,
143                 (l, lstart, lstep, s) -> s.shuffleFromOp(i -> (VectorIntrinsics.wrapToRange(i*lstep + lstart, l))));
144       } else {
145         return (Long64Shuffle)VectorSupport.shuffleIota(ETYPE, Long64Shuffle.class, VSPECIES, VLENGTH, start, step, 0,
146                 (l, lstart, lstep, s) -> s.shuffleFromOp(i -> (i*lstep + lstart)));
147       }
148     }
149 
150     @Override
151     @ForceInline
152     Long64Shuffle shuffleFromBytes(byte[] reorder) { return new Long64Shuffle(reorder); }
153 
154     @Override
155     @ForceInline
156     Long64Shuffle shuffleFromArray(int[] indexes, int i) { return new Long64Shuffle(indexes, i); }
157 
158     @Override
159     @ForceInline
160     Long64Shuffle shuffleFromOp(IntUnaryOperator fn) { return new Long64Shuffle(fn); }
161 
162     // Make a vector of the same species but the given elements:
163     @ForceInline
164     final @Override
165     Long64Vector vectorFactory(long[] vec) {
166         return new Long64Vector(vec);
167     }
168 
169     @ForceInline
170     final @Override
171     Byte64Vector asByteVectorRaw() {
172         return (Byte64Vector) super.asByteVectorRawTemplate();  // specialize
173     }
174 
175     @ForceInline
176     final @Override
177     AbstractVector<?> asVectorRaw(LaneType laneType) {
178         return super.asVectorRawTemplate(laneType);  // specialize
179     }
180 
181     // Unary operator
182 
183     @ForceInline
184     final @Override
185     Long64Vector uOp(FUnOp f) {
186         return (Long64Vector) super.uOpTemplate(f);  // specialize
187     }
188 
189     @ForceInline
190     final @Override
191     Long64Vector uOp(VectorMask<Long> m, FUnOp f) {
192         return (Long64Vector)
193             super.uOpTemplate((Long64Mask)m, f);  // specialize
194     }
195 
196     // Binary operator
197 
198     @ForceInline
199     final @Override
200     Long64Vector bOp(Vector<Long> v, FBinOp f) {
201         return (Long64Vector) super.bOpTemplate((Long64Vector)v, f);  // specialize
202     }
203 
204     @ForceInline
205     final @Override
206     Long64Vector bOp(Vector<Long> v,
207                      VectorMask<Long> m, FBinOp f) {
208         return (Long64Vector)
209             super.bOpTemplate((Long64Vector)v, (Long64Mask)m,
210                               f);  // specialize
211     }
212 
213     // Ternary operator
214 
215     @ForceInline
216     final @Override
217     Long64Vector tOp(Vector<Long> v1, Vector<Long> v2, FTriOp f) {
218         return (Long64Vector)
219             super.tOpTemplate((Long64Vector)v1, (Long64Vector)v2,
220                               f);  // specialize
221     }
222 
223     @ForceInline
224     final @Override
225     Long64Vector tOp(Vector<Long> v1, Vector<Long> v2,
226                      VectorMask<Long> m, FTriOp f) {
227         return (Long64Vector)
228             super.tOpTemplate((Long64Vector)v1, (Long64Vector)v2,
229                               (Long64Mask)m, f);  // specialize
230     }
231 
232     @ForceInline
233     final @Override
234     long rOp(long v, FBinOp f) {
235         return super.rOpTemplate(v, f);  // specialize
236     }
237 
238     @Override
239     @ForceInline
240     public final <F>
241     Vector<F> convertShape(VectorOperators.Conversion<Long,F> conv,
242                            VectorSpecies<F> rsp, int part) {
243         return super.convertShapeTemplate(conv, rsp, part);  // specialize
244     }
245 
246     @Override
247     @ForceInline
248     public final <F>
249     Vector<F> reinterpretShape(VectorSpecies<F> toSpecies, int part) {
250         return super.reinterpretShapeTemplate(toSpecies, part);  // specialize
251     }
252 
253     // Specialized algebraic operations:
254 
255     // The following definition forces a specialized version of this
256     // crucial method into the v-table of this class.  A call to add()
257     // will inline to a call to lanewise(ADD,), at which point the JIT
258     // intrinsic will have the opcode of ADD, plus all the metadata
259     // for this particular class, enabling it to generate precise
260     // code.
261     //
262     // There is probably no benefit to the JIT to specialize the
263     // masked or broadcast versions of the lanewise method.
264 
265     @Override
266     @ForceInline
267     public Long64Vector lanewise(Unary op) {
268         return (Long64Vector) super.lanewiseTemplate(op);  // specialize
269     }
270 
271     @Override
272     @ForceInline
273     public Long64Vector lanewise(Binary op, Vector<Long> v) {
274         return (Long64Vector) super.lanewiseTemplate(op, v);  // specialize
275     }
276 
277     /*package-private*/
278     @Override
279     @ForceInline Long64Vector
280     lanewiseShift(VectorOperators.Binary op, int e) {
281         return (Long64Vector) super.lanewiseShiftTemplate(op, e);  // specialize
282     }
283 
284     /*package-private*/
285     @Override
286     @ForceInline
287     public final
288     Long64Vector
289     lanewise(VectorOperators.Ternary op, Vector<Long> v1, Vector<Long> v2) {
290         return (Long64Vector) super.lanewiseTemplate(op, v1, v2);  // specialize
291     }
292 
293     @Override
294     @ForceInline
295     public final
296     Long64Vector addIndex(int scale) {
297         return (Long64Vector) super.addIndexTemplate(scale);  // specialize
298     }
299 
300     // Type specific horizontal reductions
301 
302     @Override
303     @ForceInline
304     public final long reduceLanes(VectorOperators.Associative op) {
305         return super.reduceLanesTemplate(op);  // specialized
306     }
307 
308     @Override
309     @ForceInline
310     public final long reduceLanes(VectorOperators.Associative op,
311                                     VectorMask<Long> m) {
312         return super.reduceLanesTemplate(op, m);  // specialized
313     }
314 
315     @Override
316     @ForceInline
317     public final long reduceLanesToLong(VectorOperators.Associative op) {
318         return (long) super.reduceLanesTemplate(op);  // specialized
319     }
320 
321     @Override
322     @ForceInline
323     public final long reduceLanesToLong(VectorOperators.Associative op,
324                                         VectorMask<Long> m) {
325         return (long) super.reduceLanesTemplate(op, m);  // specialized
326     }
327 
328     @ForceInline
329     public VectorShuffle<Long> toShuffle() {
330         return super.toShuffleTemplate(Long64Shuffle.class); // specialize
331     }
332 
333     // Specialized unary testing
334 
335     @Override
336     @ForceInline
337     public final Long64Mask test(Test op) {
338         return super.testTemplate(Long64Mask.class, op);  // specialize
339     }
340 
341     // Specialized comparisons
342 
343     @Override
344     @ForceInline
345     public final Long64Mask compare(Comparison op, Vector<Long> v) {
346         return super.compareTemplate(Long64Mask.class, op, v);  // specialize
347     }
348 
349     @Override
350     @ForceInline
351     public final Long64Mask compare(Comparison op, long s) {
352         return super.compareTemplate(Long64Mask.class, op, s);  // specialize
353     }
354 
355 
356     @Override
357     @ForceInline
358     public Long64Vector blend(Vector<Long> v, VectorMask<Long> m) {
359         return (Long64Vector)
360             super.blendTemplate(Long64Mask.class,
361                                 (Long64Vector) v,
362                                 (Long64Mask) m);  // specialize
363     }
364 
365     @Override
366     @ForceInline
367     public Long64Vector slice(int origin, Vector<Long> v) {
368         return (Long64Vector) super.sliceTemplate(origin, v);  // specialize
369     }
370 
371     @Override
372     @ForceInline
373     public Long64Vector slice(int origin) {
374         return (Long64Vector) super.sliceTemplate(origin);  // specialize
375     }
376 
377     @Override
378     @ForceInline
379     public Long64Vector unslice(int origin, Vector<Long> w, int part) {
380         return (Long64Vector) super.unsliceTemplate(origin, w, part);  // specialize
381     }
382 
383     @Override
384     @ForceInline
385     public Long64Vector unslice(int origin, Vector<Long> w, int part, VectorMask<Long> m) {
386         return (Long64Vector)
387             super.unsliceTemplate(Long64Mask.class,
388                                   origin, w, part,
389                                   (Long64Mask) m);  // specialize
390     }
391 
392     @Override
393     @ForceInline
394     public Long64Vector unslice(int origin) {
395         return (Long64Vector) super.unsliceTemplate(origin);  // specialize
396     }
397 
398     @Override
399     @ForceInline
400     public Long64Vector rearrange(VectorShuffle<Long> s) {
401         return (Long64Vector)
402             super.rearrangeTemplate(Long64Shuffle.class,
403                                     (Long64Shuffle) s);  // specialize
404     }
405 
406     @Override
407     @ForceInline
408     public Long64Vector rearrange(VectorShuffle<Long> shuffle,
409                                   VectorMask<Long> m) {
410         return (Long64Vector)
411             super.rearrangeTemplate(Long64Shuffle.class,
412                                     (Long64Shuffle) shuffle,
413                                     (Long64Mask) m);  // specialize
414     }
415 
416     @Override
417     @ForceInline
418     public Long64Vector rearrange(VectorShuffle<Long> s,
419                                   Vector<Long> v) {
420         return (Long64Vector)
421             super.rearrangeTemplate(Long64Shuffle.class,
422                                     (Long64Shuffle) s,
423                                     (Long64Vector) v);  // specialize
424     }
425 
426     @Override
427     @ForceInline
428     public Long64Vector selectFrom(Vector<Long> v) {
429         return (Long64Vector)
430             super.selectFromTemplate((Long64Vector) v);  // specialize
431     }
432 
433     @Override
434     @ForceInline
435     public Long64Vector selectFrom(Vector<Long> v,
436                                    VectorMask<Long> m) {
437         return (Long64Vector)
438             super.selectFromTemplate((Long64Vector) v,
439                                      (Long64Mask) m);  // specialize
440     }
441 
442 
443     @ForceInline
444     @Override
445     public long lane(int i) {
446         switch(i) {
447             case 0: return laneHelper(0);
448             default: throw new IllegalArgumentException("Index " + i + " must be zero or positive, and less than " + VLENGTH);
449         }
450     }
451 
452     public long laneHelper(int i) {
453         return (long) VectorSupport.extract(
454                                 VCLASS, ETYPE, VLENGTH,
455                                 this, i,
456                                 (vec, ix) -> {
457                                     long[] vecarr = vec.vec();
458                                     return (long)vecarr[ix];
459                                 });
460     }
461 
462     @ForceInline
463     @Override
464     public Long64Vector withLane(int i, long e) {
465         switch (i) {
466             case 0: return withLaneHelper(0, e);
467             default: throw new IllegalArgumentException("Index " + i + " must be zero or positive, and less than " + VLENGTH);
468         }
469     }
470 
471     public Long64Vector withLaneHelper(int i, long e) {
472         return VectorSupport.insert(
473                                 VCLASS, ETYPE, VLENGTH,
474                                 this, i, (long)e,
475                                 (v, ix, bits) -> {
476                                     long[] res = v.vec().clone();
477                                     res[ix] = (long)bits;
478                                     return v.vectorFactory(res);
479                                 });
480     }
481 
482     // Mask
483 
484     static final class Long64Mask extends AbstractMask<Long> {
485         static final int VLENGTH = VSPECIES.laneCount();    // used by the JVM
486         static final Class<Long> ETYPE = long.class; // used by the JVM
487 
488         Long64Mask(boolean[] bits) {
489             this(bits, 0);
490         }
491 
492         Long64Mask(boolean[] bits, int offset) {
493             super(prepare(bits, offset));
494         }
495 
496         Long64Mask(boolean val) {
497             super(prepare(val));
498         }
499 
500         private static boolean[] prepare(boolean[] bits, int offset) {
501             boolean[] newBits = new boolean[VSPECIES.laneCount()];
502             for (int i = 0; i < newBits.length; i++) {
503                 newBits[i] = bits[offset + i];
504             }
505             return newBits;
506         }
507 
508         private static boolean[] prepare(boolean val) {
509             boolean[] bits = new boolean[VSPECIES.laneCount()];
510             Arrays.fill(bits, val);
511             return bits;
512         }
513 
514         @ForceInline
515         final @Override
516         public LongSpecies vspecies() {
517             // ISSUE:  This should probably be a @Stable
518             // field inside AbstractMask, rather than
519             // a megamorphic method.
520             return VSPECIES;
521         }
522 
523         @ForceInline
524         boolean[] getBits() {
525             return (boolean[])getPayload();
526         }
527 
528         @Override
529         Long64Mask uOp(MUnOp f) {
530             boolean[] res = new boolean[vspecies().laneCount()];
531             boolean[] bits = getBits();
532             for (int i = 0; i < res.length; i++) {
533                 res[i] = f.apply(i, bits[i]);
534             }
535             return new Long64Mask(res);
536         }
537 
538         @Override
539         Long64Mask bOp(VectorMask<Long> m, MBinOp f) {
540             boolean[] res = new boolean[vspecies().laneCount()];
541             boolean[] bits = getBits();
542             boolean[] mbits = ((Long64Mask)m).getBits();
543             for (int i = 0; i < res.length; i++) {
544                 res[i] = f.apply(i, bits[i], mbits[i]);
545             }
546             return new Long64Mask(res);
547         }
548 
549         @ForceInline
550         @Override
551         public final
552         Long64Vector toVector() {
553             return (Long64Vector) super.toVectorTemplate();  // specialize
554         }
555 
556         /**
557          * Helper function for lane-wise mask conversions.
558          * This function kicks in after intrinsic failure.
559          */
560         @ForceInline
561         private final <E>
562         VectorMask<E> defaultMaskCast(AbstractSpecies<E> dsp) {
563             if (length() != dsp.laneCount())
564                 throw new IllegalArgumentException("VectorMask length and species length differ");
565             boolean[] maskArray = toArray();
566             return  dsp.maskFactory(maskArray).check(dsp);
567         }
568 
569         @Override
570         @ForceInline
571         public <E> VectorMask<E> cast(VectorSpecies<E> dsp) {
572             AbstractSpecies<E> species = (AbstractSpecies<E>) dsp;
573             if (length() != species.laneCount())
574                 throw new IllegalArgumentException("VectorMask length and species length differ");
575             if (VSIZE == species.vectorBitSize()) {
576                 Class<?> dtype = species.elementType();
577                 Class<?> dmtype = species.maskType();
578                 return VectorSupport.convert(VectorSupport.VECTOR_OP_REINTERPRET,
579                     this.getClass(), ETYPE, VLENGTH,
580                     dmtype, dtype, VLENGTH,
581                     this, species,
582                     Long64Mask::defaultMaskCast);
583             }
584             return this.defaultMaskCast(species);
585         }
586 
587         @Override
588         @ForceInline
589         public Long64Mask eq(VectorMask<Long> mask) {
590             Objects.requireNonNull(mask);
591             Long64Mask m = (Long64Mask)mask;
592             return xor(m.not());
593         }
594 
595         // Unary operations
596 
597         @Override
598         @ForceInline
599         public Long64Mask not() {
600             return xor(maskAll(true));
601         }
602 
603         // Binary operations
604 
605         @Override
606         @ForceInline
607         public Long64Mask and(VectorMask<Long> mask) {
608             Objects.requireNonNull(mask);
609             Long64Mask m = (Long64Mask)mask;
610             return VectorSupport.binaryOp(VECTOR_OP_AND, Long64Mask.class, long.class, VLENGTH,
611                                              this, m,
612                                              (m1, m2) -> m1.bOp(m2, (i, a, b) -> a & b));
613         }
614 
615         @Override
616         @ForceInline
617         public Long64Mask or(VectorMask<Long> mask) {
618             Objects.requireNonNull(mask);
619             Long64Mask m = (Long64Mask)mask;
620             return VectorSupport.binaryOp(VECTOR_OP_OR, Long64Mask.class, long.class, VLENGTH,
621                                              this, m,
622                                              (m1, m2) -> m1.bOp(m2, (i, a, b) -> a | b));
623         }
624 
625         @ForceInline
626         /* package-private */
627         Long64Mask xor(VectorMask<Long> mask) {
628             Objects.requireNonNull(mask);
629             Long64Mask m = (Long64Mask)mask;
630             return VectorSupport.binaryOp(VECTOR_OP_XOR, Long64Mask.class, long.class, VLENGTH,
631                                           this, m,
632                                           (m1, m2) -> m1.bOp(m2, (i, a, b) -> a ^ b));
633         }
634 
635         // Mask Query operations
636 
637         @Override
638         @ForceInline
639         public int trueCount() {
640             return VectorSupport.maskReductionCoerced(VECTOR_OP_MASK_TRUECOUNT, Long64Mask.class, long.class, VLENGTH, this,
641                                                       (m) -> trueCountHelper(((Long64Mask)m).getBits()));
642         }
643 
644         @Override
645         @ForceInline
646         public int firstTrue() {
647             return VectorSupport.maskReductionCoerced(VECTOR_OP_MASK_FIRSTTRUE, Long64Mask.class, long.class, VLENGTH, this,
648                                                       (m) -> firstTrueHelper(((Long64Mask)m).getBits()));
649         }
650 
651         @Override
652         @ForceInline
653         public int lastTrue() {
654             return VectorSupport.maskReductionCoerced(VECTOR_OP_MASK_LASTTRUE, Long64Mask.class, long.class, VLENGTH, this,
655                                                       (m) -> lastTrueHelper(((Long64Mask)m).getBits()));
656         }
657 
658         // Reductions
659 
660         @Override
661         @ForceInline
662         public boolean anyTrue() {
663             return VectorSupport.test(BT_ne, Long64Mask.class, long.class, VLENGTH,
664                                          this, vspecies().maskAll(true),
665                                          (m, __) -> anyTrueHelper(((Long64Mask)m).getBits()));
666         }
667 
668         @Override
669         @ForceInline
670         public boolean allTrue() {
671             return VectorSupport.test(BT_overflow, Long64Mask.class, long.class, VLENGTH,
672                                          this, vspecies().maskAll(true),
673                                          (m, __) -> allTrueHelper(((Long64Mask)m).getBits()));
674         }
675 
676         @ForceInline
677         /*package-private*/
678         static Long64Mask maskAll(boolean bit) {
679             return VectorSupport.broadcastCoerced(Long64Mask.class, long.class, VLENGTH,
680                                                   (bit ? -1 : 0), null,
681                                                   (v, __) -> (v != 0 ? TRUE_MASK : FALSE_MASK));
682         }
683         private static final Long64Mask  TRUE_MASK = new Long64Mask(true);
684         private static final Long64Mask FALSE_MASK = new Long64Mask(false);
685 
686     }
687 
688     // Shuffle
689 
690     static final class Long64Shuffle extends AbstractShuffle<Long> {
691         static final int VLENGTH = VSPECIES.laneCount();    // used by the JVM
692         static final Class<Long> ETYPE = long.class; // used by the JVM
693 
694         Long64Shuffle(byte[] reorder) {
695             super(VLENGTH, reorder);
696         }
697 
698         public Long64Shuffle(int[] reorder) {
699             super(VLENGTH, reorder);
700         }
701 
702         public Long64Shuffle(int[] reorder, int i) {
703             super(VLENGTH, reorder, i);
704         }
705 
706         public Long64Shuffle(IntUnaryOperator fn) {
707             super(VLENGTH, fn);
708         }
709 
710         @Override
711         public LongSpecies vspecies() {
712             return VSPECIES;
713         }
714 
715         static {
716             // There must be enough bits in the shuffle lanes to encode
717             // VLENGTH valid indexes and VLENGTH exceptional ones.
718             assert(VLENGTH < Byte.MAX_VALUE);
719             assert(Byte.MIN_VALUE <= -VLENGTH);
720         }
721         static final Long64Shuffle IOTA = new Long64Shuffle(IDENTITY);
722 
723         @Override
724         @ForceInline
725         public Long64Vector toVector() {
726             return VectorSupport.shuffleToVector(VCLASS, ETYPE, Long64Shuffle.class, this, VLENGTH,
727                                                     (s) -> ((Long64Vector)(((AbstractShuffle<Long>)(s)).toVectorTemplate())));
728         }
729 
730         @Override
731         @ForceInline
732         public <F> VectorShuffle<F> cast(VectorSpecies<F> s) {
733             AbstractSpecies<F> species = (AbstractSpecies<F>) s;
734             if (length() != species.laneCount())
735                 throw new IllegalArgumentException("VectorShuffle length and species length differ");
736             int[] shuffleArray = toArray();
737             return s.shuffleFromArray(shuffleArray, 0).check(s);
738         }
739 
740         @ForceInline
741         @Override
742         public Long64Shuffle rearrange(VectorShuffle<Long> shuffle) {
743             Long64Shuffle s = (Long64Shuffle) shuffle;
744             byte[] reorder1 = reorder();
745             byte[] reorder2 = s.reorder();
746             byte[] r = new byte[reorder1.length];
747             for (int i = 0; i < reorder1.length; i++) {
748                 int ssi = reorder2[i];
749                 r[i] = reorder1[ssi];  // throws on exceptional index
750             }
751             return new Long64Shuffle(r);
752         }
753     }
754 
755     // ================================================
756 
757     // Specialized low-level memory operations.
758 
759     @ForceInline
760     @Override
761     final
762     LongVector fromArray0(long[] a, int offset) {
763         return super.fromArray0Template(a, offset);  // specialize
764     }
765 
766 
767 
768     @ForceInline
769     @Override
770     final
771     LongVector fromByteArray0(byte[] a, int offset) {
772         return super.fromByteArray0Template(a, offset);  // specialize
773     }
774 
775     @ForceInline
776     @Override
777     final
778     LongVector fromByteBuffer0(ByteBuffer bb, int offset) {
779         return super.fromByteBuffer0Template(bb, offset);  // specialize
780     }
781 
782     @ForceInline
783     @Override
784     final
785     void intoArray0(long[] a, int offset) {
786         super.intoArray0Template(a, offset);  // specialize
787     }
788 
789     @ForceInline
790     @Override
791     final
792     void intoByteArray0(byte[] a, int offset) {
793         super.intoByteArray0Template(a, offset);  // specialize
794     }
795 
796     // End of specialized low-level memory operations.
797 
798     // ================================================
799 
800 }