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 Long256Vector extends LongVector {
 43     static final LongSpecies VSPECIES =
 44         (LongSpecies) LongVector.SPECIES_256;
 45 
 46     static final VectorShape VSHAPE =
 47         VSPECIES.vectorShape();
 48 
 49     static final Class<Long256Vector> VCLASS = Long256Vector.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     Long256Vector(long[] v) {
 58         super(v);
 59     }
 60 
 61     // For compatibility as Long256Vector::new,
 62     // stored into species.vectorFactory.
 63     Long256Vector(Object v) {
 64         this((long[]) v);
 65     }
 66 
 67     static final Long256Vector ZERO = new Long256Vector(new long[VLENGTH]);
 68     static final Long256Vector IOTA = new Long256Vector(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 Long256Vector broadcast(long e) {
125         return (Long256Vector) super.broadcastTemplate(e);  // specialize
126     }
127 
128 
129     @Override
130     @ForceInline
131     Long256Mask maskFromArray(boolean[] bits) {
132         return new Long256Mask(bits);
133     }
134 
135     @Override
136     @ForceInline
137     Long256Shuffle iotaShuffle() { return Long256Shuffle.IOTA; }
138 
139     @ForceInline
140     Long256Shuffle iotaShuffle(int start, int step, boolean wrap) {
141       if (wrap) {
142         return (Long256Shuffle)VectorSupport.shuffleIota(ETYPE, Long256Shuffle.class, VSPECIES, VLENGTH, start, step, 1,
143                 (l, lstart, lstep, s) -> s.shuffleFromOp(i -> (VectorIntrinsics.wrapToRange(i*lstep + lstart, l))));
144       } else {
145         return (Long256Shuffle)VectorSupport.shuffleIota(ETYPE, Long256Shuffle.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     Long256Shuffle shuffleFromBytes(byte[] reorder) { return new Long256Shuffle(reorder); }
153 
154     @Override
155     @ForceInline
156     Long256Shuffle shuffleFromArray(int[] indexes, int i) { return new Long256Shuffle(indexes, i); }
157 
158     @Override
159     @ForceInline
160     Long256Shuffle shuffleFromOp(IntUnaryOperator fn) { return new Long256Shuffle(fn); }
161 
162     // Make a vector of the same species but the given elements:
163     @ForceInline
164     final @Override
165     Long256Vector vectorFactory(long[] vec) {
166         return new Long256Vector(vec);
167     }
168 
169     @ForceInline
170     final @Override
171     Byte256Vector asByteVectorRaw() {
172         return (Byte256Vector) 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     Long256Vector uOp(FUnOp f) {
186         return (Long256Vector) super.uOpTemplate(f);  // specialize
187     }
188 
189     @ForceInline
190     final @Override
191     Long256Vector uOp(VectorMask<Long> m, FUnOp f) {
192         return (Long256Vector)
193             super.uOpTemplate((Long256Mask)m, f);  // specialize
194     }
195 
196     // Binary operator
197 
198     @ForceInline
199     final @Override
200     Long256Vector bOp(Vector<Long> v, FBinOp f) {
201         return (Long256Vector) super.bOpTemplate((Long256Vector)v, f);  // specialize
202     }
203 
204     @ForceInline
205     final @Override
206     Long256Vector bOp(Vector<Long> v,
207                      VectorMask<Long> m, FBinOp f) {
208         return (Long256Vector)
209             super.bOpTemplate((Long256Vector)v, (Long256Mask)m,
210                               f);  // specialize
211     }
212 
213     // Ternary operator
214 
215     @ForceInline
216     final @Override
217     Long256Vector tOp(Vector<Long> v1, Vector<Long> v2, FTriOp f) {
218         return (Long256Vector)
219             super.tOpTemplate((Long256Vector)v1, (Long256Vector)v2,
220                               f);  // specialize
221     }
222 
223     @ForceInline
224     final @Override
225     Long256Vector tOp(Vector<Long> v1, Vector<Long> v2,
226                      VectorMask<Long> m, FTriOp f) {
227         return (Long256Vector)
228             super.tOpTemplate((Long256Vector)v1, (Long256Vector)v2,
229                               (Long256Mask)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 Long256Vector lanewise(Unary op) {
268         return (Long256Vector) super.lanewiseTemplate(op);  // specialize
269     }
270 
271     @Override
272     @ForceInline
273     public Long256Vector lanewise(Unary op, VectorMask<Long> m) {
274         return (Long256Vector) super.lanewiseTemplate(op, Long256Mask.class, (Long256Mask) m);  // specialize
275     }
276 
277     @Override
278     @ForceInline
279     public Long256Vector lanewise(Binary op, Vector<Long> v) {
280         return (Long256Vector) super.lanewiseTemplate(op, v);  // specialize
281     }
282 
283     @Override
284     @ForceInline
285     public Long256Vector lanewise(Binary op, Vector<Long> v, VectorMask<Long> m) {
286         return (Long256Vector) super.lanewiseTemplate(op, Long256Mask.class, v, (Long256Mask) m);  // specialize
287     }
288 
289     /*package-private*/
290     @Override
291     @ForceInline Long256Vector
292     lanewiseShift(VectorOperators.Binary op, int e) {
293         return (Long256Vector) super.lanewiseShiftTemplate(op, e);  // specialize
294     }
295 
296     /*package-private*/
297     @Override
298     @ForceInline Long256Vector
299     lanewiseShift(VectorOperators.Binary op, int e, VectorMask<Long> m) {
300         return (Long256Vector) super.lanewiseShiftTemplate(op, Long256Mask.class, e, (Long256Mask) m);  // specialize
301     }
302 
303     /*package-private*/
304     @Override
305     @ForceInline
306     public final
307     Long256Vector
308     lanewise(Ternary op, Vector<Long> v1, Vector<Long> v2) {
309         return (Long256Vector) super.lanewiseTemplate(op, v1, v2);  // specialize
310     }
311 
312     @Override
313     @ForceInline
314     public final
315     Long256Vector
316     lanewise(Ternary op, Vector<Long> v1, Vector<Long> v2, VectorMask<Long> m) {
317         return (Long256Vector) super.lanewiseTemplate(op, Long256Mask.class, v1, v2, (Long256Mask) m);  // specialize
318     }
319 
320     @Override
321     @ForceInline
322     public final
323     Long256Vector addIndex(int scale) {
324         return (Long256Vector) 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, Long256Mask.class, (Long256Mask) 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, Long256Mask.class, (Long256Mask) m);  // specialized
353     }
354 
355     @ForceInline
356     public VectorShuffle<Long> toShuffle() {
357         return super.toShuffleTemplate(Long256Shuffle.class); // specialize
358     }
359 
360     // Specialized unary testing
361 
362     @Override
363     @ForceInline
364     public final Long256Mask test(Test op) {
365         return super.testTemplate(Long256Mask.class, op);  // specialize
366     }
367 
368     // Specialized comparisons
369 
370     @Override
371     @ForceInline
372     public final Long256Mask compare(Comparison op, Vector<Long> v) {
373         return super.compareTemplate(Long256Mask.class, op, v);  // specialize
374     }
375 
376     @Override
377     @ForceInline
378     public final Long256Mask compare(Comparison op, long s) {
379         return super.compareTemplate(Long256Mask.class, op, s);  // specialize
380     }
381 
382 
383     @Override
384     @ForceInline
385     public final Long256Mask compare(Comparison op, Vector<Long> v, VectorMask<Long> m) {
386         return super.compareTemplate(Long256Mask.class, op, v, (Long256Mask) m);
387     }
388 
389 
390     @Override
391     @ForceInline
392     public Long256Vector blend(Vector<Long> v, VectorMask<Long> m) {
393         return (Long256Vector)
394             super.blendTemplate(Long256Mask.class,
395                                 (Long256Vector) v,
396                                 (Long256Mask) m);  // specialize
397     }
398 
399     @Override
400     @ForceInline
401     public Long256Vector slice(int origin, Vector<Long> v) {
402         return (Long256Vector) super.sliceTemplate(origin, v);  // specialize
403     }
404 
405     @Override
406     @ForceInline
407     public Long256Vector slice(int origin) {
408         return (Long256Vector) super.sliceTemplate(origin);  // specialize
409     }
410 
411     @Override
412     @ForceInline
413     public Long256Vector unslice(int origin, Vector<Long> w, int part) {
414         return (Long256Vector) super.unsliceTemplate(origin, w, part);  // specialize
415     }
416 
417     @Override
418     @ForceInline
419     public Long256Vector unslice(int origin, Vector<Long> w, int part, VectorMask<Long> m) {
420         return (Long256Vector)
421             super.unsliceTemplate(Long256Mask.class,
422                                   origin, w, part,
423                                   (Long256Mask) m);  // specialize
424     }
425 
426     @Override
427     @ForceInline
428     public Long256Vector unslice(int origin) {
429         return (Long256Vector) super.unsliceTemplate(origin);  // specialize
430     }
431 
432     @Override
433     @ForceInline
434     public Long256Vector rearrange(VectorShuffle<Long> s) {
435         return (Long256Vector)
436             super.rearrangeTemplate(Long256Shuffle.class,
437                                     (Long256Shuffle) s);  // specialize
438     }
439 
440     @Override
441     @ForceInline
442     public Long256Vector rearrange(VectorShuffle<Long> shuffle,
443                                   VectorMask<Long> m) {
444         return (Long256Vector)
445             super.rearrangeTemplate(Long256Shuffle.class,
446                                     Long256Mask.class,
447                                     (Long256Shuffle) shuffle,
448                                     (Long256Mask) m);  // specialize
449     }
450 
451     @Override
452     @ForceInline
453     public Long256Vector rearrange(VectorShuffle<Long> s,
454                                   Vector<Long> v) {
455         return (Long256Vector)
456             super.rearrangeTemplate(Long256Shuffle.class,
457                                     (Long256Shuffle) s,
458                                     (Long256Vector) v);  // specialize
459     }
460 
461     @Override
462     @ForceInline
463     public Long256Vector selectFrom(Vector<Long> v) {
464         return (Long256Vector)
465             super.selectFromTemplate((Long256Vector) v);  // specialize
466     }
467 
468     @Override
469     @ForceInline
470     public Long256Vector selectFrom(Vector<Long> v,
471                                    VectorMask<Long> m) {
472         return (Long256Vector)
473             super.selectFromTemplate((Long256Vector) v,
474                                      (Long256Mask) m);  // specialize
475     }
476 
477 
478     @ForceInline
479     @Override
480     public long lane(int i) {
481         switch(i) {
482             case 0: return laneHelper(0);
483             case 1: return laneHelper(1);
484             case 2: return laneHelper(2);
485             case 3: return laneHelper(3);
486             default: throw new IllegalArgumentException("Index " + i + " must be zero or positive, and less than " + VLENGTH);
487         }
488     }
489 
490     public long laneHelper(int i) {
491         return (long) VectorSupport.extract(
492                                 VCLASS, ETYPE, VLENGTH,
493                                 this, i,
494                                 (vec, ix) -> {
495                                     long[] vecarr = vec.vec();
496                                     return (long)vecarr[ix];
497                                 });
498     }
499 
500     @ForceInline
501     @Override
502     public Long256Vector withLane(int i, long e) {
503         switch (i) {
504             case 0: return withLaneHelper(0, e);
505             case 1: return withLaneHelper(1, e);
506             case 2: return withLaneHelper(2, e);
507             case 3: return withLaneHelper(3, e);
508             default: throw new IllegalArgumentException("Index " + i + " must be zero or positive, and less than " + VLENGTH);
509         }
510     }
511 
512     public Long256Vector withLaneHelper(int i, long e) {
513         return VectorSupport.insert(
514                                 VCLASS, ETYPE, VLENGTH,
515                                 this, i, (long)e,
516                                 (v, ix, bits) -> {
517                                     long[] res = v.vec().clone();
518                                     res[ix] = (long)bits;
519                                     return v.vectorFactory(res);
520                                 });
521     }
522 
523     // Mask
524 
525     static final class Long256Mask extends AbstractMask<Long> {
526         static final int VLENGTH = VSPECIES.laneCount();    // used by the JVM
527         static final Class<Long> ETYPE = long.class; // used by the JVM
528 
529         Long256Mask(boolean[] bits) {
530             this(bits, 0);
531         }
532 
533         Long256Mask(boolean[] bits, int offset) {
534             super(prepare(bits, offset));
535         }
536 
537         Long256Mask(boolean val) {
538             super(prepare(val));
539         }
540 
541         private static boolean[] prepare(boolean[] bits, int offset) {
542             boolean[] newBits = new boolean[VSPECIES.laneCount()];
543             for (int i = 0; i < newBits.length; i++) {
544                 newBits[i] = bits[offset + i];
545             }
546             return newBits;
547         }
548 
549         private static boolean[] prepare(boolean val) {
550             boolean[] bits = new boolean[VSPECIES.laneCount()];
551             Arrays.fill(bits, val);
552             return bits;
553         }
554 
555         @ForceInline
556         final @Override
557         public LongSpecies vspecies() {
558             // ISSUE:  This should probably be a @Stable
559             // field inside AbstractMask, rather than
560             // a megamorphic method.
561             return VSPECIES;
562         }
563 
564         @ForceInline
565         boolean[] getBits() {
566             return (boolean[])getPayload();
567         }
568 
569         @Override
570         Long256Mask uOp(MUnOp f) {
571             boolean[] res = new boolean[vspecies().laneCount()];
572             boolean[] bits = getBits();
573             for (int i = 0; i < res.length; i++) {
574                 res[i] = f.apply(i, bits[i]);
575             }
576             return new Long256Mask(res);
577         }
578 
579         @Override
580         Long256Mask bOp(VectorMask<Long> m, MBinOp f) {
581             boolean[] res = new boolean[vspecies().laneCount()];
582             boolean[] bits = getBits();
583             boolean[] mbits = ((Long256Mask)m).getBits();
584             for (int i = 0; i < res.length; i++) {
585                 res[i] = f.apply(i, bits[i], mbits[i]);
586             }
587             return new Long256Mask(res);
588         }
589 
590         @ForceInline
591         @Override
592         public final
593         Long256Vector toVector() {
594             return (Long256Vector) super.toVectorTemplate();  // specialize
595         }
596 
597         /**
598          * Helper function for lane-wise mask conversions.
599          * This function kicks in after intrinsic failure.
600          */
601         @ForceInline
602         private final <E>
603         VectorMask<E> defaultMaskCast(AbstractSpecies<E> dsp) {
604             if (length() != dsp.laneCount())
605                 throw new IllegalArgumentException("VectorMask length and species length differ");
606             boolean[] maskArray = toArray();
607             return  dsp.maskFactory(maskArray).check(dsp);
608         }
609 
610         @Override
611         @ForceInline
612         public <E> VectorMask<E> cast(VectorSpecies<E> dsp) {
613             AbstractSpecies<E> species = (AbstractSpecies<E>) dsp;
614             if (length() != species.laneCount())
615                 throw new IllegalArgumentException("VectorMask length and species length differ");
616 
617             return VectorSupport.convert(VectorSupport.VECTOR_OP_CAST,
618                 this.getClass(), ETYPE, VLENGTH,
619                 species.maskType(), species.elementType(), VLENGTH,
620                 this, species,
621                 (m, s) -> s.maskFactory(m.toArray()).check(s));
622         }
623 
624         @Override
625         @ForceInline
626         public Long256Mask eq(VectorMask<Long> mask) {
627             Objects.requireNonNull(mask);
628             Long256Mask m = (Long256Mask)mask;
629             return xor(m.not());
630         }
631 
632         // Unary operations
633 
634         @Override
635         @ForceInline
636         public Long256Mask not() {
637             return xor(maskAll(true));
638         }
639 
640         // Binary operations
641 
642         @Override
643         @ForceInline
644         public Long256Mask and(VectorMask<Long> mask) {
645             Objects.requireNonNull(mask);
646             Long256Mask m = (Long256Mask)mask;
647             return VectorSupport.binaryOp(VECTOR_OP_AND, Long256Mask.class, null, long.class, VLENGTH,
648                                           this, m, null,
649                                           (m1, m2, vm) -> m1.bOp(m2, (i, a, b) -> a & b));
650         }
651 
652         @Override
653         @ForceInline
654         public Long256Mask or(VectorMask<Long> mask) {
655             Objects.requireNonNull(mask);
656             Long256Mask m = (Long256Mask)mask;
657             return VectorSupport.binaryOp(VECTOR_OP_OR, Long256Mask.class, null, long.class, VLENGTH,
658                                           this, m, null,
659                                           (m1, m2, vm) -> m1.bOp(m2, (i, a, b) -> a | b));
660         }
661 
662         @ForceInline
663         /* package-private */
664         Long256Mask xor(VectorMask<Long> mask) {
665             Objects.requireNonNull(mask);
666             Long256Mask m = (Long256Mask)mask;
667             return VectorSupport.binaryOp(VECTOR_OP_XOR, Long256Mask.class, null, long.class, VLENGTH,
668                                           this, m, null,
669                                           (m1, m2, vm) -> m1.bOp(m2, (i, a, b) -> a ^ b));
670         }
671 
672         // Mask Query operations
673 
674         @Override
675         @ForceInline
676         public int trueCount() {
677             return (int) VectorSupport.maskReductionCoerced(VECTOR_OP_MASK_TRUECOUNT, Long256Mask.class, long.class, VLENGTH, this,
678                                                       (m) -> trueCountHelper(m.getBits()));
679         }
680 
681         @Override
682         @ForceInline
683         public int firstTrue() {
684             return (int) VectorSupport.maskReductionCoerced(VECTOR_OP_MASK_FIRSTTRUE, Long256Mask.class, long.class, VLENGTH, this,
685                                                       (m) -> firstTrueHelper(m.getBits()));
686         }
687 
688         @Override
689         @ForceInline
690         public int lastTrue() {
691             return (int) VectorSupport.maskReductionCoerced(VECTOR_OP_MASK_LASTTRUE, Long256Mask.class, long.class, VLENGTH, this,
692                                                       (m) -> lastTrueHelper(m.getBits()));
693         }
694 
695         @Override
696         @ForceInline
697         public long toLong() {
698             if (length() > Long.SIZE) {
699                 throw new UnsupportedOperationException("too many lanes for one long");
700             }
701             return VectorSupport.maskReductionCoerced(VECTOR_OP_MASK_TOLONG, Long256Mask.class, long.class, VLENGTH, this,
702                                                       (m) -> toLongHelper(m.getBits()));
703         }
704 
705         // Reductions
706 
707         @Override
708         @ForceInline
709         public boolean anyTrue() {
710             return VectorSupport.test(BT_ne, Long256Mask.class, long.class, VLENGTH,
711                                          this, vspecies().maskAll(true),
712                                          (m, __) -> anyTrueHelper(((Long256Mask)m).getBits()));
713         }
714 
715         @Override
716         @ForceInline
717         public boolean allTrue() {
718             return VectorSupport.test(BT_overflow, Long256Mask.class, long.class, VLENGTH,
719                                          this, vspecies().maskAll(true),
720                                          (m, __) -> allTrueHelper(((Long256Mask)m).getBits()));
721         }
722 
723         @ForceInline
724         /*package-private*/
725         static Long256Mask maskAll(boolean bit) {
726             return VectorSupport.broadcastCoerced(Long256Mask.class, long.class, VLENGTH,
727                                                   (bit ? -1 : 0), null,
728                                                   (v, __) -> (v != 0 ? TRUE_MASK : FALSE_MASK));
729         }
730         private static final Long256Mask  TRUE_MASK = new Long256Mask(true);
731         private static final Long256Mask FALSE_MASK = new Long256Mask(false);
732 
733     }
734 
735     // Shuffle
736 
737     static final class Long256Shuffle extends AbstractShuffle<Long> {
738         static final int VLENGTH = VSPECIES.laneCount();    // used by the JVM
739         static final Class<Long> ETYPE = long.class; // used by the JVM
740 
741         Long256Shuffle(byte[] reorder) {
742             super(VLENGTH, reorder);
743         }
744 
745         public Long256Shuffle(int[] reorder) {
746             super(VLENGTH, reorder);
747         }
748 
749         public Long256Shuffle(int[] reorder, int i) {
750             super(VLENGTH, reorder, i);
751         }
752 
753         public Long256Shuffle(IntUnaryOperator fn) {
754             super(VLENGTH, fn);
755         }
756 
757         @Override
758         public LongSpecies vspecies() {
759             return VSPECIES;
760         }
761 
762         static {
763             // There must be enough bits in the shuffle lanes to encode
764             // VLENGTH valid indexes and VLENGTH exceptional ones.
765             assert(VLENGTH < Byte.MAX_VALUE);
766             assert(Byte.MIN_VALUE <= -VLENGTH);
767         }
768         static final Long256Shuffle IOTA = new Long256Shuffle(IDENTITY);
769 
770         @Override
771         @ForceInline
772         public Long256Vector toVector() {
773             return VectorSupport.shuffleToVector(VCLASS, ETYPE, Long256Shuffle.class, this, VLENGTH,
774                                                     (s) -> ((Long256Vector)(((AbstractShuffle<Long>)(s)).toVectorTemplate())));
775         }
776 
777         @Override
778         @ForceInline
779         public <F> VectorShuffle<F> cast(VectorSpecies<F> s) {
780             AbstractSpecies<F> species = (AbstractSpecies<F>) s;
781             if (length() != species.laneCount())
782                 throw new IllegalArgumentException("VectorShuffle length and species length differ");
783             int[] shuffleArray = toArray();
784             return s.shuffleFromArray(shuffleArray, 0).check(s);
785         }
786 
787         @ForceInline
788         @Override
789         public Long256Shuffle rearrange(VectorShuffle<Long> shuffle) {
790             Long256Shuffle s = (Long256Shuffle) shuffle;
791             byte[] reorder1 = reorder();
792             byte[] reorder2 = s.reorder();
793             byte[] r = new byte[reorder1.length];
794             for (int i = 0; i < reorder1.length; i++) {
795                 int ssi = reorder2[i];
796                 r[i] = reorder1[ssi];  // throws on exceptional index
797             }
798             return new Long256Shuffle(r);
799         }
800     }
801 
802     // ================================================
803 
804     // Specialized low-level memory operations.
805 
806     @ForceInline
807     @Override
808     final
809     LongVector fromArray0(long[] a, int offset) {
810         return super.fromArray0Template(a, offset);  // specialize
811     }
812 
813     @ForceInline
814     @Override
815     final
816     LongVector fromArray0(long[] a, int offset, VectorMask<Long> m) {
817         return super.fromArray0Template(Long256Mask.class, a, offset, (Long256Mask) m);  // specialize
818     }
819 
820     @ForceInline
821     @Override
822     final
823     LongVector fromArray0(long[] a, int offset, int[] indexMap, int mapOffset, VectorMask<Long> m) {
824         return super.fromArray0Template(Long256Mask.class, a, offset, indexMap, mapOffset, (Long256Mask) m);
825     }
826 
827 
828 
829     @ForceInline
830     @Override
831     final
832     LongVector fromByteArray0(byte[] a, int offset) {
833         return super.fromByteArray0Template(a, offset);  // specialize
834     }
835 
836     @ForceInline
837     @Override
838     final
839     LongVector fromByteArray0(byte[] a, int offset, VectorMask<Long> m) {
840         return super.fromByteArray0Template(Long256Mask.class, a, offset, (Long256Mask) m);  // specialize
841     }
842 
843     @ForceInline
844     @Override
845     final
846     LongVector fromByteBuffer0(ByteBuffer bb, int offset) {
847         return super.fromByteBuffer0Template(bb, offset);  // specialize
848     }
849 
850     @ForceInline
851     @Override
852     final
853     LongVector fromByteBuffer0(ByteBuffer bb, int offset, VectorMask<Long> m) {
854         return super.fromByteBuffer0Template(Long256Mask.class, bb, offset, (Long256Mask) m);  // specialize
855     }
856 
857     @ForceInline
858     @Override
859     final
860     void intoArray0(long[] a, int offset) {
861         super.intoArray0Template(a, offset);  // specialize
862     }
863 
864     @ForceInline
865     @Override
866     final
867     void intoArray0(long[] a, int offset, VectorMask<Long> m) {
868         super.intoArray0Template(Long256Mask.class, a, offset, (Long256Mask) m);
869     }
870 
871     @ForceInline
872     @Override
873     final
874     void intoArray0(long[] a, int offset, int[] indexMap, int mapOffset, VectorMask<Long> m) {
875         super.intoArray0Template(Long256Mask.class, a, offset, indexMap, mapOffset, (Long256Mask) m);
876     }
877 
878 
879     @ForceInline
880     @Override
881     final
882     void intoByteArray0(byte[] a, int offset) {
883         super.intoByteArray0Template(a, offset);  // specialize
884     }
885 
886     @ForceInline
887     @Override
888     final
889     void intoByteArray0(byte[] a, int offset, VectorMask<Long> m) {
890         super.intoByteArray0Template(Long256Mask.class, a, offset, (Long256Mask) m);  // specialize
891     }
892 
893     @ForceInline
894     @Override
895     final
896     void intoByteBuffer0(ByteBuffer bb, int offset, VectorMask<Long> m) {
897         super.intoByteBuffer0Template(Long256Mask.class, bb, offset, (Long256Mask) m);
898     }
899 
900 
901     // End of specialized low-level memory operations.
902 
903     // ================================================
904 
905 }