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 Short64Vector extends ShortVector {
 43     static final ShortSpecies VSPECIES =
 44         (ShortSpecies) ShortVector.SPECIES_64;
 45 
 46     static final VectorShape VSHAPE =
 47         VSPECIES.vectorShape();
 48 
 49     static final Class<Short64Vector> VCLASS = Short64Vector.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<Short> ETYPE = short.class; // used by the JVM
 56 
 57     Short64Vector(short[] v) {
 58         super(v);
 59     }
 60 
 61     // For compatibility as Short64Vector::new,
 62     // stored into species.vectorFactory.
 63     Short64Vector(Object v) {
 64         this((short[]) v);
 65     }
 66 
 67     static final Short64Vector ZERO = new Short64Vector(new short[VLENGTH]);
 68     static final Short64Vector IOTA = new Short64Vector(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 ShortSpecies 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<Short> elementType() { return short.class; }
 92 
 93     @ForceInline
 94     @Override
 95     public final int elementSize() { return Short.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     short[] vec() {
117         return (short[])getPayload();
118     }
119 
120     // Virtualized constructors
121 
122     @Override
123     @ForceInline
124     public final Short64Vector broadcast(short e) {
125         return (Short64Vector) super.broadcastTemplate(e);  // specialize
126     }
127 
128     @Override
129     @ForceInline
130     public final Short64Vector broadcast(long e) {
131         return (Short64Vector) super.broadcastTemplate(e);  // specialize
132     }
133 
134     @Override
135     @ForceInline
136     Short64Mask maskFromArray(boolean[] bits) {
137         return new Short64Mask(bits);
138     }
139 
140     @Override
141     @ForceInline
142     Short64Shuffle iotaShuffle() { return Short64Shuffle.IOTA; }
143 
144     @ForceInline
145     Short64Shuffle iotaShuffle(int start, int step, boolean wrap) {
146       if (wrap) {
147         return (Short64Shuffle)VectorSupport.shuffleIota(ETYPE, Short64Shuffle.class, VSPECIES, VLENGTH, start, step, 1,
148                 (l, lstart, lstep, s) -> s.shuffleFromOp(i -> (VectorIntrinsics.wrapToRange(i*lstep + lstart, l))));
149       } else {
150         return (Short64Shuffle)VectorSupport.shuffleIota(ETYPE, Short64Shuffle.class, VSPECIES, VLENGTH, start, step, 0,
151                 (l, lstart, lstep, s) -> s.shuffleFromOp(i -> (i*lstep + lstart)));
152       }
153     }
154 
155     @Override
156     @ForceInline
157     Short64Shuffle shuffleFromBytes(byte[] reorder) { return new Short64Shuffle(reorder); }
158 
159     @Override
160     @ForceInline
161     Short64Shuffle shuffleFromArray(int[] indexes, int i) { return new Short64Shuffle(indexes, i); }
162 
163     @Override
164     @ForceInline
165     Short64Shuffle shuffleFromOp(IntUnaryOperator fn) { return new Short64Shuffle(fn); }
166 
167     // Make a vector of the same species but the given elements:
168     @ForceInline
169     final @Override
170     Short64Vector vectorFactory(short[] vec) {
171         return new Short64Vector(vec);
172     }
173 
174     @ForceInline
175     final @Override
176     Byte64Vector asByteVectorRaw() {
177         return (Byte64Vector) super.asByteVectorRawTemplate();  // specialize
178     }
179 
180     @ForceInline
181     final @Override
182     AbstractVector<?> asVectorRaw(LaneType laneType) {
183         return super.asVectorRawTemplate(laneType);  // specialize
184     }
185 
186     // Unary operator
187 
188     @ForceInline
189     final @Override
190     Short64Vector uOp(FUnOp f) {
191         return (Short64Vector) super.uOpTemplate(f);  // specialize
192     }
193 
194     @ForceInline
195     final @Override
196     Short64Vector uOp(VectorMask<Short> m, FUnOp f) {
197         return (Short64Vector)
198             super.uOpTemplate((Short64Mask)m, f);  // specialize
199     }
200 
201     // Binary operator
202 
203     @ForceInline
204     final @Override
205     Short64Vector bOp(Vector<Short> v, FBinOp f) {
206         return (Short64Vector) super.bOpTemplate((Short64Vector)v, f);  // specialize
207     }
208 
209     @ForceInline
210     final @Override
211     Short64Vector bOp(Vector<Short> v,
212                      VectorMask<Short> m, FBinOp f) {
213         return (Short64Vector)
214             super.bOpTemplate((Short64Vector)v, (Short64Mask)m,
215                               f);  // specialize
216     }
217 
218     // Ternary operator
219 
220     @ForceInline
221     final @Override
222     Short64Vector tOp(Vector<Short> v1, Vector<Short> v2, FTriOp f) {
223         return (Short64Vector)
224             super.tOpTemplate((Short64Vector)v1, (Short64Vector)v2,
225                               f);  // specialize
226     }
227 
228     @ForceInline
229     final @Override
230     Short64Vector tOp(Vector<Short> v1, Vector<Short> v2,
231                      VectorMask<Short> m, FTriOp f) {
232         return (Short64Vector)
233             super.tOpTemplate((Short64Vector)v1, (Short64Vector)v2,
234                               (Short64Mask)m, f);  // specialize
235     }
236 
237     @ForceInline
238     final @Override
239     short rOp(short v, FBinOp f) {
240         return super.rOpTemplate(v, f);  // specialize
241     }
242 
243     @Override
244     @ForceInline
245     public final <F>
246     Vector<F> convertShape(VectorOperators.Conversion<Short,F> conv,
247                            VectorSpecies<F> rsp, int part) {
248         return super.convertShapeTemplate(conv, rsp, part);  // specialize
249     }
250 
251     @Override
252     @ForceInline
253     public final <F>
254     Vector<F> reinterpretShape(VectorSpecies<F> toSpecies, int part) {
255         return super.reinterpretShapeTemplate(toSpecies, part);  // specialize
256     }
257 
258     // Specialized algebraic operations:
259 
260     // The following definition forces a specialized version of this
261     // crucial method into the v-table of this class.  A call to add()
262     // will inline to a call to lanewise(ADD,), at which point the JIT
263     // intrinsic will have the opcode of ADD, plus all the metadata
264     // for this particular class, enabling it to generate precise
265     // code.
266     //
267     // There is probably no benefit to the JIT to specialize the
268     // masked or broadcast versions of the lanewise method.
269 
270     @Override
271     @ForceInline
272     public Short64Vector lanewise(Unary op) {
273         return (Short64Vector) super.lanewiseTemplate(op);  // specialize
274     }
275 
276     @Override
277     @ForceInline
278     public Short64Vector lanewise(Binary op, Vector<Short> v) {
279         return (Short64Vector) super.lanewiseTemplate(op, v);  // specialize
280     }
281 
282     /*package-private*/
283     @Override
284     @ForceInline Short64Vector
285     lanewiseShift(VectorOperators.Binary op, int e) {
286         return (Short64Vector) super.lanewiseShiftTemplate(op, e);  // specialize
287     }
288 
289     /*package-private*/
290     @Override
291     @ForceInline
292     public final
293     Short64Vector
294     lanewise(VectorOperators.Ternary op, Vector<Short> v1, Vector<Short> v2) {
295         return (Short64Vector) super.lanewiseTemplate(op, v1, v2);  // specialize
296     }
297 
298     @Override
299     @ForceInline
300     public final
301     Short64Vector addIndex(int scale) {
302         return (Short64Vector) super.addIndexTemplate(scale);  // specialize
303     }
304 
305     // Type specific horizontal reductions
306 
307     @Override
308     @ForceInline
309     public final short reduceLanes(VectorOperators.Associative op) {
310         return super.reduceLanesTemplate(op);  // specialized
311     }
312 
313     @Override
314     @ForceInline
315     public final short reduceLanes(VectorOperators.Associative op,
316                                     VectorMask<Short> m) {
317         return super.reduceLanesTemplate(op, m);  // specialized
318     }
319 
320     @Override
321     @ForceInline
322     public final long reduceLanesToLong(VectorOperators.Associative op) {
323         return (long) super.reduceLanesTemplate(op);  // specialized
324     }
325 
326     @Override
327     @ForceInline
328     public final long reduceLanesToLong(VectorOperators.Associative op,
329                                         VectorMask<Short> m) {
330         return (long) super.reduceLanesTemplate(op, m);  // specialized
331     }
332 
333     @ForceInline
334     public VectorShuffle<Short> toShuffle() {
335         return super.toShuffleTemplate(Short64Shuffle.class); // specialize
336     }
337 
338     // Specialized unary testing
339 
340     @Override
341     @ForceInline
342     public final Short64Mask test(Test op) {
343         return super.testTemplate(Short64Mask.class, op);  // specialize
344     }
345 
346     // Specialized comparisons
347 
348     @Override
349     @ForceInline
350     public final Short64Mask compare(Comparison op, Vector<Short> v) {
351         return super.compareTemplate(Short64Mask.class, op, v);  // specialize
352     }
353 
354     @Override
355     @ForceInline
356     public final Short64Mask compare(Comparison op, short s) {
357         return super.compareTemplate(Short64Mask.class, op, s);  // specialize
358     }
359 
360     @Override
361     @ForceInline
362     public final Short64Mask compare(Comparison op, long s) {
363         return super.compareTemplate(Short64Mask.class, op, s);  // specialize
364     }
365 
366     @Override
367     @ForceInline
368     public Short64Vector blend(Vector<Short> v, VectorMask<Short> m) {
369         return (Short64Vector)
370             super.blendTemplate(Short64Mask.class,
371                                 (Short64Vector) v,
372                                 (Short64Mask) m);  // specialize
373     }
374 
375     @Override
376     @ForceInline
377     public Short64Vector slice(int origin, Vector<Short> v) {
378         return (Short64Vector) super.sliceTemplate(origin, v);  // specialize
379     }
380 
381     @Override
382     @ForceInline
383     public Short64Vector slice(int origin) {
384         return (Short64Vector) super.sliceTemplate(origin);  // specialize
385     }
386 
387     @Override
388     @ForceInline
389     public Short64Vector unslice(int origin, Vector<Short> w, int part) {
390         return (Short64Vector) super.unsliceTemplate(origin, w, part);  // specialize
391     }
392 
393     @Override
394     @ForceInline
395     public Short64Vector unslice(int origin, Vector<Short> w, int part, VectorMask<Short> m) {
396         return (Short64Vector)
397             super.unsliceTemplate(Short64Mask.class,
398                                   origin, w, part,
399                                   (Short64Mask) m);  // specialize
400     }
401 
402     @Override
403     @ForceInline
404     public Short64Vector unslice(int origin) {
405         return (Short64Vector) super.unsliceTemplate(origin);  // specialize
406     }
407 
408     @Override
409     @ForceInline
410     public Short64Vector rearrange(VectorShuffle<Short> s) {
411         return (Short64Vector)
412             super.rearrangeTemplate(Short64Shuffle.class,
413                                     (Short64Shuffle) s);  // specialize
414     }
415 
416     @Override
417     @ForceInline
418     public Short64Vector rearrange(VectorShuffle<Short> shuffle,
419                                   VectorMask<Short> m) {
420         return (Short64Vector)
421             super.rearrangeTemplate(Short64Shuffle.class,
422                                     (Short64Shuffle) shuffle,
423                                     (Short64Mask) m);  // specialize
424     }
425 
426     @Override
427     @ForceInline
428     public Short64Vector rearrange(VectorShuffle<Short> s,
429                                   Vector<Short> v) {
430         return (Short64Vector)
431             super.rearrangeTemplate(Short64Shuffle.class,
432                                     (Short64Shuffle) s,
433                                     (Short64Vector) v);  // specialize
434     }
435 
436     @Override
437     @ForceInline
438     public Short64Vector selectFrom(Vector<Short> v) {
439         return (Short64Vector)
440             super.selectFromTemplate((Short64Vector) v);  // specialize
441     }
442 
443     @Override
444     @ForceInline
445     public Short64Vector selectFrom(Vector<Short> v,
446                                    VectorMask<Short> m) {
447         return (Short64Vector)
448             super.selectFromTemplate((Short64Vector) v,
449                                      (Short64Mask) m);  // specialize
450     }
451 
452 
453     @ForceInline
454     @Override
455     public short lane(int i) {
456         switch(i) {
457             case 0: return laneHelper(0);
458             case 1: return laneHelper(1);
459             case 2: return laneHelper(2);
460             case 3: return laneHelper(3);
461             default: throw new IllegalArgumentException("Index " + i + " must be zero or positive, and less than " + VLENGTH);
462         }
463     }
464 
465     public short laneHelper(int i) {
466         return (short) VectorSupport.extract(
467                                 VCLASS, ETYPE, VLENGTH,
468                                 this, i,
469                                 (vec, ix) -> {
470                                     short[] vecarr = vec.vec();
471                                     return (long)vecarr[ix];
472                                 });
473     }
474 
475     @ForceInline
476     @Override
477     public Short64Vector withLane(int i, short e) {
478         switch (i) {
479             case 0: return withLaneHelper(0, e);
480             case 1: return withLaneHelper(1, e);
481             case 2: return withLaneHelper(2, e);
482             case 3: return withLaneHelper(3, e);
483             default: throw new IllegalArgumentException("Index " + i + " must be zero or positive, and less than " + VLENGTH);
484         }
485     }
486 
487     public Short64Vector withLaneHelper(int i, short e) {
488         return VectorSupport.insert(
489                                 VCLASS, ETYPE, VLENGTH,
490                                 this, i, (long)e,
491                                 (v, ix, bits) -> {
492                                     short[] res = v.vec().clone();
493                                     res[ix] = (short)bits;
494                                     return v.vectorFactory(res);
495                                 });
496     }
497 
498     // Mask
499 
500     static final class Short64Mask extends AbstractMask<Short> {
501         static final int VLENGTH = VSPECIES.laneCount();    // used by the JVM
502         static final Class<Short> ETYPE = short.class; // used by the JVM
503 
504         Short64Mask(boolean[] bits) {
505             this(bits, 0);
506         }
507 
508         Short64Mask(boolean[] bits, int offset) {
509             super(prepare(bits, offset));
510         }
511 
512         Short64Mask(boolean val) {
513             super(prepare(val));
514         }
515 
516         private static boolean[] prepare(boolean[] bits, int offset) {
517             boolean[] newBits = new boolean[VSPECIES.laneCount()];
518             for (int i = 0; i < newBits.length; i++) {
519                 newBits[i] = bits[offset + i];
520             }
521             return newBits;
522         }
523 
524         private static boolean[] prepare(boolean val) {
525             boolean[] bits = new boolean[VSPECIES.laneCount()];
526             Arrays.fill(bits, val);
527             return bits;
528         }
529 
530         @ForceInline
531         final @Override
532         public ShortSpecies vspecies() {
533             // ISSUE:  This should probably be a @Stable
534             // field inside AbstractMask, rather than
535             // a megamorphic method.
536             return VSPECIES;
537         }
538 
539         @ForceInline
540         boolean[] getBits() {
541             return (boolean[])getPayload();
542         }
543 
544         @Override
545         Short64Mask uOp(MUnOp f) {
546             boolean[] res = new boolean[vspecies().laneCount()];
547             boolean[] bits = getBits();
548             for (int i = 0; i < res.length; i++) {
549                 res[i] = f.apply(i, bits[i]);
550             }
551             return new Short64Mask(res);
552         }
553 
554         @Override
555         Short64Mask bOp(VectorMask<Short> m, MBinOp f) {
556             boolean[] res = new boolean[vspecies().laneCount()];
557             boolean[] bits = getBits();
558             boolean[] mbits = ((Short64Mask)m).getBits();
559             for (int i = 0; i < res.length; i++) {
560                 res[i] = f.apply(i, bits[i], mbits[i]);
561             }
562             return new Short64Mask(res);
563         }
564 
565         @ForceInline
566         @Override
567         public final
568         Short64Vector toVector() {
569             return (Short64Vector) super.toVectorTemplate();  // specialize
570         }
571 
572         /**
573          * Helper function for lane-wise mask conversions.
574          * This function kicks in after intrinsic failure.
575          */
576         @ForceInline
577         private final <E>
578         VectorMask<E> defaultMaskCast(AbstractSpecies<E> dsp) {
579             if (length() != dsp.laneCount())
580                 throw new IllegalArgumentException("VectorMask length and species length differ");
581             boolean[] maskArray = toArray();
582             return  dsp.maskFactory(maskArray).check(dsp);
583         }
584 
585         @Override
586         @ForceInline
587         public <E> VectorMask<E> cast(VectorSpecies<E> dsp) {
588             AbstractSpecies<E> species = (AbstractSpecies<E>) dsp;
589             if (length() != species.laneCount())
590                 throw new IllegalArgumentException("VectorMask length and species length differ");
591             if (VSIZE == species.vectorBitSize()) {
592                 Class<?> dtype = species.elementType();
593                 Class<?> dmtype = species.maskType();
594                 return VectorSupport.convert(VectorSupport.VECTOR_OP_REINTERPRET,
595                     this.getClass(), ETYPE, VLENGTH,
596                     dmtype, dtype, VLENGTH,
597                     this, species,
598                     Short64Mask::defaultMaskCast);
599             }
600             return this.defaultMaskCast(species);
601         }
602 
603         @Override
604         @ForceInline
605         public Short64Mask eq(VectorMask<Short> mask) {
606             Objects.requireNonNull(mask);
607             Short64Mask m = (Short64Mask)mask;
608             return xor(m.not());
609         }
610 
611         // Unary operations
612 
613         @Override
614         @ForceInline
615         public Short64Mask not() {
616             return xor(maskAll(true));
617         }
618 
619         // Binary operations
620 
621         @Override
622         @ForceInline
623         public Short64Mask and(VectorMask<Short> mask) {
624             Objects.requireNonNull(mask);
625             Short64Mask m = (Short64Mask)mask;
626             return VectorSupport.binaryOp(VECTOR_OP_AND, Short64Mask.class, short.class, VLENGTH,
627                                              this, m,
628                                              (m1, m2) -> m1.bOp(m2, (i, a, b) -> a & b));
629         }
630 
631         @Override
632         @ForceInline
633         public Short64Mask or(VectorMask<Short> mask) {
634             Objects.requireNonNull(mask);
635             Short64Mask m = (Short64Mask)mask;
636             return VectorSupport.binaryOp(VECTOR_OP_OR, Short64Mask.class, short.class, VLENGTH,
637                                              this, m,
638                                              (m1, m2) -> m1.bOp(m2, (i, a, b) -> a | b));
639         }
640 
641         @ForceInline
642         /* package-private */
643         Short64Mask xor(VectorMask<Short> mask) {
644             Objects.requireNonNull(mask);
645             Short64Mask m = (Short64Mask)mask;
646             return VectorSupport.binaryOp(VECTOR_OP_XOR, Short64Mask.class, short.class, VLENGTH,
647                                           this, m,
648                                           (m1, m2) -> m1.bOp(m2, (i, a, b) -> a ^ b));
649         }
650 
651         // Mask Query operations
652 
653         @Override
654         @ForceInline
655         public int trueCount() {
656             return VectorSupport.maskReductionCoerced(VECTOR_OP_MASK_TRUECOUNT, Short64Mask.class, short.class, VLENGTH, this,
657                                                       (m) -> trueCountHelper(((Short64Mask)m).getBits()));
658         }
659 
660         @Override
661         @ForceInline
662         public int firstTrue() {
663             return VectorSupport.maskReductionCoerced(VECTOR_OP_MASK_FIRSTTRUE, Short64Mask.class, short.class, VLENGTH, this,
664                                                       (m) -> firstTrueHelper(((Short64Mask)m).getBits()));
665         }
666 
667         @Override
668         @ForceInline
669         public int lastTrue() {
670             return VectorSupport.maskReductionCoerced(VECTOR_OP_MASK_LASTTRUE, Short64Mask.class, short.class, VLENGTH, this,
671                                                       (m) -> lastTrueHelper(((Short64Mask)m).getBits()));
672         }
673 
674         // Reductions
675 
676         @Override
677         @ForceInline
678         public boolean anyTrue() {
679             return VectorSupport.test(BT_ne, Short64Mask.class, short.class, VLENGTH,
680                                          this, vspecies().maskAll(true),
681                                          (m, __) -> anyTrueHelper(((Short64Mask)m).getBits()));
682         }
683 
684         @Override
685         @ForceInline
686         public boolean allTrue() {
687             return VectorSupport.test(BT_overflow, Short64Mask.class, short.class, VLENGTH,
688                                          this, vspecies().maskAll(true),
689                                          (m, __) -> allTrueHelper(((Short64Mask)m).getBits()));
690         }
691 
692         @ForceInline
693         /*package-private*/
694         static Short64Mask maskAll(boolean bit) {
695             return VectorSupport.broadcastCoerced(Short64Mask.class, short.class, VLENGTH,
696                                                   (bit ? -1 : 0), null,
697                                                   (v, __) -> (v != 0 ? TRUE_MASK : FALSE_MASK));
698         }
699         private static final Short64Mask  TRUE_MASK = new Short64Mask(true);
700         private static final Short64Mask FALSE_MASK = new Short64Mask(false);
701 
702     }
703 
704     // Shuffle
705 
706     static final class Short64Shuffle extends AbstractShuffle<Short> {
707         static final int VLENGTH = VSPECIES.laneCount();    // used by the JVM
708         static final Class<Short> ETYPE = short.class; // used by the JVM
709 
710         Short64Shuffle(byte[] reorder) {
711             super(VLENGTH, reorder);
712         }
713 
714         public Short64Shuffle(int[] reorder) {
715             super(VLENGTH, reorder);
716         }
717 
718         public Short64Shuffle(int[] reorder, int i) {
719             super(VLENGTH, reorder, i);
720         }
721 
722         public Short64Shuffle(IntUnaryOperator fn) {
723             super(VLENGTH, fn);
724         }
725 
726         @Override
727         public ShortSpecies vspecies() {
728             return VSPECIES;
729         }
730 
731         static {
732             // There must be enough bits in the shuffle lanes to encode
733             // VLENGTH valid indexes and VLENGTH exceptional ones.
734             assert(VLENGTH < Byte.MAX_VALUE);
735             assert(Byte.MIN_VALUE <= -VLENGTH);
736         }
737         static final Short64Shuffle IOTA = new Short64Shuffle(IDENTITY);
738 
739         @Override
740         @ForceInline
741         public Short64Vector toVector() {
742             return VectorSupport.shuffleToVector(VCLASS, ETYPE, Short64Shuffle.class, this, VLENGTH,
743                                                     (s) -> ((Short64Vector)(((AbstractShuffle<Short>)(s)).toVectorTemplate())));
744         }
745 
746         @Override
747         @ForceInline
748         public <F> VectorShuffle<F> cast(VectorSpecies<F> s) {
749             AbstractSpecies<F> species = (AbstractSpecies<F>) s;
750             if (length() != species.laneCount())
751                 throw new IllegalArgumentException("VectorShuffle length and species length differ");
752             int[] shuffleArray = toArray();
753             return s.shuffleFromArray(shuffleArray, 0).check(s);
754         }
755 
756         @ForceInline
757         @Override
758         public Short64Shuffle rearrange(VectorShuffle<Short> shuffle) {
759             Short64Shuffle s = (Short64Shuffle) shuffle;
760             byte[] reorder1 = reorder();
761             byte[] reorder2 = s.reorder();
762             byte[] r = new byte[reorder1.length];
763             for (int i = 0; i < reorder1.length; i++) {
764                 int ssi = reorder2[i];
765                 r[i] = reorder1[ssi];  // throws on exceptional index
766             }
767             return new Short64Shuffle(r);
768         }
769     }
770 
771     // ================================================
772 
773     // Specialized low-level memory operations.
774 
775     @ForceInline
776     @Override
777     final
778     ShortVector fromArray0(short[] a, int offset) {
779         return super.fromArray0Template(a, offset);  // specialize
780     }
781 
782     @ForceInline
783     @Override
784     final
785     ShortVector fromCharArray0(char[] a, int offset) {
786         return super.fromCharArray0Template(a, offset);  // specialize
787     }
788 
789 
790     @ForceInline
791     @Override
792     final
793     ShortVector fromByteArray0(byte[] a, int offset) {
794         return super.fromByteArray0Template(a, offset);  // specialize
795     }
796 
797     @ForceInline
798     @Override
799     final
800     ShortVector fromByteBuffer0(ByteBuffer bb, int offset) {
801         return super.fromByteBuffer0Template(bb, offset);  // specialize
802     }
803 
804     @ForceInline
805     @Override
806     final
807     void intoArray0(short[] a, int offset) {
808         super.intoArray0Template(a, offset);  // specialize
809     }
810 
811     @ForceInline
812     @Override
813     final
814     void intoByteArray0(byte[] a, int offset) {
815         super.intoByteArray0Template(a, offset);  // specialize
816     }
817 
818     // End of specialized low-level memory operations.
819 
820     // ================================================
821 
822 }