1 /*
  2  * Copyright (c) 2017, 2022, 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.util.Arrays;
 28 import java.util.Objects;
 29 import java.util.function.IntUnaryOperator;
 30 
 31 import jdk.incubator.foreign.MemorySegment;
 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 Long128Vector extends LongVector {
 43     static final LongSpecies VSPECIES =
 44         (LongSpecies) LongVector.SPECIES_128;
 45 
 46     static final VectorShape VSHAPE =
 47         VSPECIES.vectorShape();
 48 
 49     static final Class<Long128Vector> VCLASS = Long128Vector.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     Long128Vector(long[] v) {
 58         super(v);
 59     }
 60 
 61     // For compatibility as Long128Vector::new,
 62     // stored into species.vectorFactory.
 63     Long128Vector(Object v) {
 64         this((long[]) v);
 65     }
 66 
 67     static final Long128Vector ZERO = new Long128Vector(new long[VLENGTH]);
 68     static final Long128Vector IOTA = new Long128Vector(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 Long128Vector broadcast(long e) {
125         return (Long128Vector) super.broadcastTemplate(e);  // specialize
126     }
127 
128 
129     @Override
130     @ForceInline
131     Long128Mask maskFromArray(boolean[] bits) {
132         return new Long128Mask(bits);
133     }
134 
135     @Override
136     @ForceInline
137     Long128Shuffle iotaShuffle() { return Long128Shuffle.IOTA; }
138 
139     @ForceInline
140     Long128Shuffle iotaShuffle(int start, int step, boolean wrap) {
141       if (wrap) {
142         return (Long128Shuffle)VectorSupport.shuffleIota(ETYPE, Long128Shuffle.class, VSPECIES, VLENGTH, start, step, 1,
143                 (l, lstart, lstep, s) -> s.shuffleFromOp(i -> (VectorIntrinsics.wrapToRange(i*lstep + lstart, l))));
144       } else {
145         return (Long128Shuffle)VectorSupport.shuffleIota(ETYPE, Long128Shuffle.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     Long128Shuffle shuffleFromBytes(byte[] reorder) { return new Long128Shuffle(reorder); }
153 
154     @Override
155     @ForceInline
156     Long128Shuffle shuffleFromArray(int[] indexes, int i) { return new Long128Shuffle(indexes, i); }
157 
158     @Override
159     @ForceInline
160     Long128Shuffle shuffleFromOp(IntUnaryOperator fn) { return new Long128Shuffle(fn); }
161 
162     // Make a vector of the same species but the given elements:
163     @ForceInline
164     final @Override
165     Long128Vector vectorFactory(long[] vec) {
166         return new Long128Vector(vec);
167     }
168 
169     @ForceInline
170     final @Override
171     Byte128Vector asByteVectorRaw() {
172         return (Byte128Vector) 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     Long128Vector uOp(FUnOp f) {
186         return (Long128Vector) super.uOpTemplate(f);  // specialize
187     }
188 
189     @ForceInline
190     final @Override
191     Long128Vector uOp(VectorMask<Long> m, FUnOp f) {
192         return (Long128Vector)
193             super.uOpTemplate((Long128Mask)m, f);  // specialize
194     }
195 
196     // Binary operator
197 
198     @ForceInline
199     final @Override
200     Long128Vector bOp(Vector<Long> v, FBinOp f) {
201         return (Long128Vector) super.bOpTemplate((Long128Vector)v, f);  // specialize
202     }
203 
204     @ForceInline
205     final @Override
206     Long128Vector bOp(Vector<Long> v,
207                      VectorMask<Long> m, FBinOp f) {
208         return (Long128Vector)
209             super.bOpTemplate((Long128Vector)v, (Long128Mask)m,
210                               f);  // specialize
211     }
212 
213     // Ternary operator
214 
215     @ForceInline
216     final @Override
217     Long128Vector tOp(Vector<Long> v1, Vector<Long> v2, FTriOp f) {
218         return (Long128Vector)
219             super.tOpTemplate((Long128Vector)v1, (Long128Vector)v2,
220                               f);  // specialize
221     }
222 
223     @ForceInline
224     final @Override
225     Long128Vector tOp(Vector<Long> v1, Vector<Long> v2,
226                      VectorMask<Long> m, FTriOp f) {
227         return (Long128Vector)
228             super.tOpTemplate((Long128Vector)v1, (Long128Vector)v2,
229                               (Long128Mask)m, f);  // specialize
230     }
231 
232     @ForceInline
233     final @Override
234     long rOp(long v, VectorMask<Long> m, FBinOp f) {
235         return super.rOpTemplate(v, m, 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 Long128Vector lanewise(Unary op) {
268         return (Long128Vector) super.lanewiseTemplate(op);  // specialize
269     }
270 
271     @Override
272     @ForceInline
273     public Long128Vector lanewise(Unary op, VectorMask<Long> m) {
274         return (Long128Vector) super.lanewiseTemplate(op, Long128Mask.class, (Long128Mask) m);  // specialize
275     }
276 
277     @Override
278     @ForceInline
279     public Long128Vector lanewise(Binary op, Vector<Long> v) {
280         return (Long128Vector) super.lanewiseTemplate(op, v);  // specialize
281     }
282 
283     @Override
284     @ForceInline
285     public Long128Vector lanewise(Binary op, Vector<Long> v, VectorMask<Long> m) {
286         return (Long128Vector) super.lanewiseTemplate(op, Long128Mask.class, v, (Long128Mask) m);  // specialize
287     }
288 
289     /*package-private*/
290     @Override
291     @ForceInline Long128Vector
292     lanewiseShift(VectorOperators.Binary op, int e) {
293         return (Long128Vector) super.lanewiseShiftTemplate(op, e);  // specialize
294     }
295 
296     /*package-private*/
297     @Override
298     @ForceInline Long128Vector
299     lanewiseShift(VectorOperators.Binary op, int e, VectorMask<Long> m) {
300         return (Long128Vector) super.lanewiseShiftTemplate(op, Long128Mask.class, e, (Long128Mask) m);  // specialize
301     }
302 
303     /*package-private*/
304     @Override
305     @ForceInline
306     public final
307     Long128Vector
308     lanewise(Ternary op, Vector<Long> v1, Vector<Long> v2) {
309         return (Long128Vector) super.lanewiseTemplate(op, v1, v2);  // specialize
310     }
311 
312     @Override
313     @ForceInline
314     public final
315     Long128Vector
316     lanewise(Ternary op, Vector<Long> v1, Vector<Long> v2, VectorMask<Long> m) {
317         return (Long128Vector) super.lanewiseTemplate(op, Long128Mask.class, v1, v2, (Long128Mask) m);  // specialize
318     }
319 
320     @Override
321     @ForceInline
322     public final
323     Long128Vector addIndex(int scale) {
324         return (Long128Vector) super.addIndexTemplate(scale);  // specialize
325     }
326 
327     // Type specific horizontal reductions
328 
329     @Override
330     @ForceInline
331     public final long reduceLanes(VectorOperators.Associative op) {
332         return super.reduceLanesTemplate(op);  // specialized
333     }
334 
335     @Override
336     @ForceInline
337     public final long reduceLanes(VectorOperators.Associative op,
338                                     VectorMask<Long> m) {
339         return super.reduceLanesTemplate(op, Long128Mask.class, (Long128Mask) m);  // specialized
340     }
341 
342     @Override
343     @ForceInline
344     public final long reduceLanesToLong(VectorOperators.Associative op) {
345         return (long) super.reduceLanesTemplate(op);  // specialized
346     }
347 
348     @Override
349     @ForceInline
350     public final long reduceLanesToLong(VectorOperators.Associative op,
351                                         VectorMask<Long> m) {
352         return (long) super.reduceLanesTemplate(op, Long128Mask.class, (Long128Mask) m);  // specialized
353     }
354 
355     @ForceInline
356     public VectorShuffle<Long> toShuffle() {
357         return super.toShuffleTemplate(Long128Shuffle.class); // specialize
358     }
359 
360     // Specialized unary testing
361 
362     @Override
363     @ForceInline
364     public final Long128Mask test(Test op) {
365         return super.testTemplate(Long128Mask.class, op);  // specialize
366     }
367 
368     @Override
369     @ForceInline
370     public final Long128Mask test(Test op, VectorMask<Long> m) {
371         return super.testTemplate(Long128Mask.class, op, (Long128Mask) m);  // specialize
372     }
373 
374     // Specialized comparisons
375 
376     @Override
377     @ForceInline
378     public final Long128Mask compare(Comparison op, Vector<Long> v) {
379         return super.compareTemplate(Long128Mask.class, op, v);  // specialize
380     }
381 
382     @Override
383     @ForceInline
384     public final Long128Mask compare(Comparison op, long s) {
385         return super.compareTemplate(Long128Mask.class, op, s);  // specialize
386     }
387 
388 
389     @Override
390     @ForceInline
391     public final Long128Mask compare(Comparison op, Vector<Long> v, VectorMask<Long> m) {
392         return super.compareTemplate(Long128Mask.class, op, v, (Long128Mask) m);
393     }
394 
395 
396     @Override
397     @ForceInline
398     public Long128Vector blend(Vector<Long> v, VectorMask<Long> m) {
399         return (Long128Vector)
400             super.blendTemplate(Long128Mask.class,
401                                 (Long128Vector) v,
402                                 (Long128Mask) m);  // specialize
403     }
404 
405     @Override
406     @ForceInline
407     public Long128Vector slice(int origin, Vector<Long> v) {
408         return (Long128Vector) super.sliceTemplate(origin, v);  // specialize
409     }
410 
411     @Override
412     @ForceInline
413     public Long128Vector slice(int origin) {
414         return (Long128Vector) super.sliceTemplate(origin);  // specialize
415     }
416 
417     @Override
418     @ForceInline
419     public Long128Vector unslice(int origin, Vector<Long> w, int part) {
420         return (Long128Vector) super.unsliceTemplate(origin, w, part);  // specialize
421     }
422 
423     @Override
424     @ForceInline
425     public Long128Vector unslice(int origin, Vector<Long> w, int part, VectorMask<Long> m) {
426         return (Long128Vector)
427             super.unsliceTemplate(Long128Mask.class,
428                                   origin, w, part,
429                                   (Long128Mask) m);  // specialize
430     }
431 
432     @Override
433     @ForceInline
434     public Long128Vector unslice(int origin) {
435         return (Long128Vector) super.unsliceTemplate(origin);  // specialize
436     }
437 
438     @Override
439     @ForceInline
440     public Long128Vector rearrange(VectorShuffle<Long> s) {
441         return (Long128Vector)
442             super.rearrangeTemplate(Long128Shuffle.class,
443                                     (Long128Shuffle) s);  // specialize
444     }
445 
446     @Override
447     @ForceInline
448     public Long128Vector rearrange(VectorShuffle<Long> shuffle,
449                                   VectorMask<Long> m) {
450         return (Long128Vector)
451             super.rearrangeTemplate(Long128Shuffle.class,
452                                     Long128Mask.class,
453                                     (Long128Shuffle) shuffle,
454                                     (Long128Mask) m);  // specialize
455     }
456 
457     @Override
458     @ForceInline
459     public Long128Vector rearrange(VectorShuffle<Long> s,
460                                   Vector<Long> v) {
461         return (Long128Vector)
462             super.rearrangeTemplate(Long128Shuffle.class,
463                                     (Long128Shuffle) s,
464                                     (Long128Vector) v);  // specialize
465     }
466 
467     @Override
468     @ForceInline
469     public Long128Vector compress(VectorMask<Long> m) {
470         return (Long128Vector)
471             super.compressTemplate(Long128Mask.class,
472                                    (Long128Mask) m);  // specialize
473     }
474 
475     @Override
476     @ForceInline
477     public Long128Vector expand(VectorMask<Long> m) {
478         return (Long128Vector)
479             super.expandTemplate(Long128Mask.class,
480                                    (Long128Mask) m);  // specialize
481     }
482 
483     @Override
484     @ForceInline
485     public Long128Vector selectFrom(Vector<Long> v) {
486         return (Long128Vector)
487             super.selectFromTemplate((Long128Vector) v);  // specialize
488     }
489 
490     @Override
491     @ForceInline
492     public Long128Vector selectFrom(Vector<Long> v,
493                                    VectorMask<Long> m) {
494         return (Long128Vector)
495             super.selectFromTemplate((Long128Vector) v,
496                                      (Long128Mask) m);  // specialize
497     }
498 
499 
500     @ForceInline
501     @Override
502     public long lane(int i) {
503         switch(i) {
504             case 0: return laneHelper(0);
505             case 1: return laneHelper(1);
506             default: throw new IllegalArgumentException("Index " + i + " must be zero or positive, and less than " + VLENGTH);
507         }
508     }
509 
510     public long laneHelper(int i) {
511         return (long) VectorSupport.extract(
512                                 VCLASS, ETYPE, VLENGTH,
513                                 this, i,
514                                 (vec, ix) -> {
515                                     long[] vecarr = vec.vec();
516                                     return (long)vecarr[ix];
517                                 });
518     }
519 
520     @ForceInline
521     @Override
522     public Long128Vector withLane(int i, long e) {
523         switch (i) {
524             case 0: return withLaneHelper(0, e);
525             case 1: return withLaneHelper(1, e);
526             default: throw new IllegalArgumentException("Index " + i + " must be zero or positive, and less than " + VLENGTH);
527         }
528     }
529 
530     public Long128Vector withLaneHelper(int i, long e) {
531         return VectorSupport.insert(
532                                 VCLASS, ETYPE, VLENGTH,
533                                 this, i, (long)e,
534                                 (v, ix, bits) -> {
535                                     long[] res = v.vec().clone();
536                                     res[ix] = (long)bits;
537                                     return v.vectorFactory(res);
538                                 });
539     }
540 
541     // Mask
542 
543     static final class Long128Mask extends AbstractMask<Long> {
544         static final int VLENGTH = VSPECIES.laneCount();    // used by the JVM
545         static final Class<Long> ETYPE = long.class; // used by the JVM
546 
547         Long128Mask(boolean[] bits) {
548             this(bits, 0);
549         }
550 
551         Long128Mask(boolean[] bits, int offset) {
552             super(prepare(bits, offset));
553         }
554 
555         Long128Mask(boolean val) {
556             super(prepare(val));
557         }
558 
559         private static boolean[] prepare(boolean[] bits, int offset) {
560             boolean[] newBits = new boolean[VSPECIES.laneCount()];
561             for (int i = 0; i < newBits.length; i++) {
562                 newBits[i] = bits[offset + i];
563             }
564             return newBits;
565         }
566 
567         private static boolean[] prepare(boolean val) {
568             boolean[] bits = new boolean[VSPECIES.laneCount()];
569             Arrays.fill(bits, val);
570             return bits;
571         }
572 
573         @ForceInline
574         final @Override
575         public LongSpecies vspecies() {
576             // ISSUE:  This should probably be a @Stable
577             // field inside AbstractMask, rather than
578             // a megamorphic method.
579             return VSPECIES;
580         }
581 
582         @ForceInline
583         boolean[] getBits() {
584             return (boolean[])getPayload();
585         }
586 
587         @Override
588         Long128Mask uOp(MUnOp f) {
589             boolean[] res = new boolean[vspecies().laneCount()];
590             boolean[] bits = getBits();
591             for (int i = 0; i < res.length; i++) {
592                 res[i] = f.apply(i, bits[i]);
593             }
594             return new Long128Mask(res);
595         }
596 
597         @Override
598         Long128Mask bOp(VectorMask<Long> m, MBinOp f) {
599             boolean[] res = new boolean[vspecies().laneCount()];
600             boolean[] bits = getBits();
601             boolean[] mbits = ((Long128Mask)m).getBits();
602             for (int i = 0; i < res.length; i++) {
603                 res[i] = f.apply(i, bits[i], mbits[i]);
604             }
605             return new Long128Mask(res);
606         }
607 
608         @ForceInline
609         @Override
610         public final
611         Long128Vector toVector() {
612             return (Long128Vector) super.toVectorTemplate();  // specialize
613         }
614 
615         /**
616          * Helper function for lane-wise mask conversions.
617          * This function kicks in after intrinsic failure.
618          */
619         @ForceInline
620         private final <E>
621         VectorMask<E> defaultMaskCast(AbstractSpecies<E> dsp) {
622             if (length() != dsp.laneCount())
623                 throw new IllegalArgumentException("VectorMask length and species length differ");
624             boolean[] maskArray = toArray();
625             return  dsp.maskFactory(maskArray).check(dsp);
626         }
627 
628         @Override
629         @ForceInline
630         public <E> VectorMask<E> cast(VectorSpecies<E> dsp) {
631             AbstractSpecies<E> species = (AbstractSpecies<E>) dsp;
632             if (length() != species.laneCount())
633                 throw new IllegalArgumentException("VectorMask length and species length differ");
634 
635             return VectorSupport.convert(VectorSupport.VECTOR_OP_CAST,
636                 this.getClass(), ETYPE, VLENGTH,
637                 species.maskType(), species.elementType(), VLENGTH,
638                 this, species,
639                 (m, s) -> s.maskFactory(m.toArray()).check(s));
640         }
641 
642         @Override
643         @ForceInline
644         public Long128Mask eq(VectorMask<Long> mask) {
645             Objects.requireNonNull(mask);
646             Long128Mask m = (Long128Mask)mask;
647             return xor(m.not());
648         }
649 
650         // Unary operations
651 
652         @Override
653         @ForceInline
654         public Long128Mask not() {
655             return xor(maskAll(true));
656         }
657 
658         @Override
659         @ForceInline
660         public Long128Mask compress() {
661             return (Long128Mask)VectorSupport.comExpOp(VectorSupport.VECTOR_OP_MASK_COMPRESS,
662                 Long128Vector.class, Long128Mask.class, ETYPE, VLENGTH, null, this,
663                 (v1, m1) -> VSPECIES.iota().compare(VectorOperators.LT, m1.trueCount()));
664         }
665 
666 
667         // Binary operations
668 
669         @Override
670         @ForceInline
671         public Long128Mask and(VectorMask<Long> mask) {
672             Objects.requireNonNull(mask);
673             Long128Mask m = (Long128Mask)mask;
674             return VectorSupport.binaryOp(VECTOR_OP_AND, Long128Mask.class, null, long.class, VLENGTH,
675                                           this, m, null,
676                                           (m1, m2, vm) -> m1.bOp(m2, (i, a, b) -> a & b));
677         }
678 
679         @Override
680         @ForceInline
681         public Long128Mask or(VectorMask<Long> mask) {
682             Objects.requireNonNull(mask);
683             Long128Mask m = (Long128Mask)mask;
684             return VectorSupport.binaryOp(VECTOR_OP_OR, Long128Mask.class, null, long.class, VLENGTH,
685                                           this, m, null,
686                                           (m1, m2, vm) -> m1.bOp(m2, (i, a, b) -> a | b));
687         }
688 
689         @ForceInline
690         /* package-private */
691         Long128Mask xor(VectorMask<Long> mask) {
692             Objects.requireNonNull(mask);
693             Long128Mask m = (Long128Mask)mask;
694             return VectorSupport.binaryOp(VECTOR_OP_XOR, Long128Mask.class, null, long.class, VLENGTH,
695                                           this, m, null,
696                                           (m1, m2, vm) -> m1.bOp(m2, (i, a, b) -> a ^ b));
697         }
698 
699         // Mask Query operations
700 
701         @Override
702         @ForceInline
703         public int trueCount() {
704             return (int) VectorSupport.maskReductionCoerced(VECTOR_OP_MASK_TRUECOUNT, Long128Mask.class, long.class, VLENGTH, this,
705                                                       (m) -> trueCountHelper(m.getBits()));
706         }
707 
708         @Override
709         @ForceInline
710         public int firstTrue() {
711             return (int) VectorSupport.maskReductionCoerced(VECTOR_OP_MASK_FIRSTTRUE, Long128Mask.class, long.class, VLENGTH, this,
712                                                       (m) -> firstTrueHelper(m.getBits()));
713         }
714 
715         @Override
716         @ForceInline
717         public int lastTrue() {
718             return (int) VectorSupport.maskReductionCoerced(VECTOR_OP_MASK_LASTTRUE, Long128Mask.class, long.class, VLENGTH, this,
719                                                       (m) -> lastTrueHelper(m.getBits()));
720         }
721 
722         @Override
723         @ForceInline
724         public long toLong() {
725             if (length() > Long.SIZE) {
726                 throw new UnsupportedOperationException("too many lanes for one long");
727             }
728             return VectorSupport.maskReductionCoerced(VECTOR_OP_MASK_TOLONG, Long128Mask.class, long.class, VLENGTH, this,
729                                                       (m) -> toLongHelper(m.getBits()));
730         }
731 
732         // Reductions
733 
734         @Override
735         @ForceInline
736         public boolean anyTrue() {
737             return VectorSupport.test(BT_ne, Long128Mask.class, long.class, VLENGTH,
738                                          this, vspecies().maskAll(true),
739                                          (m, __) -> anyTrueHelper(((Long128Mask)m).getBits()));
740         }
741 
742         @Override
743         @ForceInline
744         public boolean allTrue() {
745             return VectorSupport.test(BT_overflow, Long128Mask.class, long.class, VLENGTH,
746                                          this, vspecies().maskAll(true),
747                                          (m, __) -> allTrueHelper(((Long128Mask)m).getBits()));
748         }
749 
750         @ForceInline
751         /*package-private*/
752         static Long128Mask maskAll(boolean bit) {
753             return VectorSupport.fromBitsCoerced(Long128Mask.class, long.class, VLENGTH,
754                                                  (bit ? -1 : 0), MODE_BROADCAST, null,
755                                                  (v, __) -> (v != 0 ? TRUE_MASK : FALSE_MASK));
756         }
757         private static final Long128Mask  TRUE_MASK = new Long128Mask(true);
758         private static final Long128Mask FALSE_MASK = new Long128Mask(false);
759 
760     }
761 
762     // Shuffle
763 
764     static final class Long128Shuffle extends AbstractShuffle<Long> {
765         static final int VLENGTH = VSPECIES.laneCount();    // used by the JVM
766         static final Class<Long> ETYPE = long.class; // used by the JVM
767 
768         Long128Shuffle(byte[] reorder) {
769             super(VLENGTH, reorder);
770         }
771 
772         public Long128Shuffle(int[] reorder) {
773             super(VLENGTH, reorder);
774         }
775 
776         public Long128Shuffle(int[] reorder, int i) {
777             super(VLENGTH, reorder, i);
778         }
779 
780         public Long128Shuffle(IntUnaryOperator fn) {
781             super(VLENGTH, fn);
782         }
783 
784         @Override
785         public LongSpecies vspecies() {
786             return VSPECIES;
787         }
788 
789         static {
790             // There must be enough bits in the shuffle lanes to encode
791             // VLENGTH valid indexes and VLENGTH exceptional ones.
792             assert(VLENGTH < Byte.MAX_VALUE);
793             assert(Byte.MIN_VALUE <= -VLENGTH);
794         }
795         static final Long128Shuffle IOTA = new Long128Shuffle(IDENTITY);
796 
797         @Override
798         @ForceInline
799         public Long128Vector toVector() {
800             return VectorSupport.shuffleToVector(VCLASS, ETYPE, Long128Shuffle.class, this, VLENGTH,
801                                                     (s) -> ((Long128Vector)(((AbstractShuffle<Long>)(s)).toVectorTemplate())));
802         }
803 
804         @Override
805         @ForceInline
806         public <F> VectorShuffle<F> cast(VectorSpecies<F> s) {
807             AbstractSpecies<F> species = (AbstractSpecies<F>) s;
808             if (length() != species.laneCount())
809                 throw new IllegalArgumentException("VectorShuffle length and species length differ");
810             int[] shuffleArray = toArray();
811             return s.shuffleFromArray(shuffleArray, 0).check(s);
812         }
813 
814         @ForceInline
815         @Override
816         public Long128Shuffle rearrange(VectorShuffle<Long> shuffle) {
817             Long128Shuffle s = (Long128Shuffle) shuffle;
818             byte[] reorder1 = reorder();
819             byte[] reorder2 = s.reorder();
820             byte[] r = new byte[reorder1.length];
821             for (int i = 0; i < reorder1.length; i++) {
822                 int ssi = reorder2[i];
823                 r[i] = reorder1[ssi];  // throws on exceptional index
824             }
825             return new Long128Shuffle(r);
826         }
827     }
828 
829     // ================================================
830 
831     // Specialized low-level memory operations.
832 
833     @ForceInline
834     @Override
835     final
836     LongVector fromArray0(long[] a, int offset) {
837         return super.fromArray0Template(a, offset);  // specialize
838     }
839 
840     @ForceInline
841     @Override
842     final
843     LongVector fromArray0(long[] a, int offset, VectorMask<Long> m) {
844         return super.fromArray0Template(Long128Mask.class, a, offset, (Long128Mask) m);  // specialize
845     }
846 
847     @ForceInline
848     @Override
849     final
850     LongVector fromArray0(long[] a, int offset, int[] indexMap, int mapOffset, VectorMask<Long> m) {
851         return super.fromArray0Template(Long128Mask.class, a, offset, indexMap, mapOffset, (Long128Mask) m);
852     }
853 
854 
855 
856     @ForceInline
857     @Override
858     final
859     LongVector fromMemorySegment0(MemorySegment ms, long offset) {
860         return super.fromMemorySegment0Template(ms, offset);  // specialize
861     }
862 
863     @ForceInline
864     @Override
865     final
866     LongVector fromMemorySegment0(MemorySegment ms, long offset, VectorMask<Long> m) {
867         return super.fromMemorySegment0Template(Long128Mask.class, ms, offset, (Long128Mask) m);  // specialize
868     }
869 
870     @ForceInline
871     @Override
872     final
873     void intoArray0(long[] a, int offset) {
874         super.intoArray0Template(a, offset);  // specialize
875     }
876 
877     @ForceInline
878     @Override
879     final
880     void intoArray0(long[] a, int offset, VectorMask<Long> m) {
881         super.intoArray0Template(Long128Mask.class, a, offset, (Long128Mask) m);
882     }
883 
884     @ForceInline
885     @Override
886     final
887     void intoArray0(long[] a, int offset, int[] indexMap, int mapOffset, VectorMask<Long> m) {
888         super.intoArray0Template(Long128Mask.class, a, offset, indexMap, mapOffset, (Long128Mask) m);
889     }
890 
891 
892     @ForceInline
893     @Override
894     final
895     void intoMemorySegment0(MemorySegment ms, long offset, VectorMask<Long> m) {
896         super.intoMemorySegment0Template(Long128Mask.class, ms, offset, (Long128Mask) m);
897     }
898 
899 
900     // End of specialized low-level memory operations.
901 
902     // ================================================
903 
904 }