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 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, VectorMask<Short> m, FBinOp f) {
240         return super.rOpTemplate(v, m, 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(Unary op, VectorMask<Short> m) {
279         return (Short64Vector) super.lanewiseTemplate(op, Short64Mask.class, (Short64Mask) m);  // specialize
280     }
281 
282     @Override
283     @ForceInline
284     public Short64Vector lanewise(Binary op, Vector<Short> v) {
285         return (Short64Vector) super.lanewiseTemplate(op, v);  // specialize
286     }
287 
288     @Override
289     @ForceInline
290     public Short64Vector lanewise(Binary op, Vector<Short> v, VectorMask<Short> m) {
291         return (Short64Vector) super.lanewiseTemplate(op, Short64Mask.class, v, (Short64Mask) m);  // specialize
292     }
293 
294     /*package-private*/
295     @Override
296     @ForceInline Short64Vector
297     lanewiseShift(VectorOperators.Binary op, int e) {
298         return (Short64Vector) super.lanewiseShiftTemplate(op, e);  // specialize
299     }
300 
301     /*package-private*/
302     @Override
303     @ForceInline Short64Vector
304     lanewiseShift(VectorOperators.Binary op, int e, VectorMask<Short> m) {
305         return (Short64Vector) super.lanewiseShiftTemplate(op, Short64Mask.class, e, (Short64Mask) m);  // specialize
306     }
307 
308     /*package-private*/
309     @Override
310     @ForceInline
311     public final
312     Short64Vector
313     lanewise(Ternary op, Vector<Short> v1, Vector<Short> v2) {
314         return (Short64Vector) super.lanewiseTemplate(op, v1, v2);  // specialize
315     }
316 
317     @Override
318     @ForceInline
319     public final
320     Short64Vector
321     lanewise(Ternary op, Vector<Short> v1, Vector<Short> v2, VectorMask<Short> m) {
322         return (Short64Vector) super.lanewiseTemplate(op, Short64Mask.class, v1, v2, (Short64Mask) m);  // specialize
323     }
324 
325     @Override
326     @ForceInline
327     public final
328     Short64Vector addIndex(int scale) {
329         return (Short64Vector) super.addIndexTemplate(scale);  // specialize
330     }
331 
332     // Type specific horizontal reductions
333 
334     @Override
335     @ForceInline
336     public final short reduceLanes(VectorOperators.Associative op) {
337         return super.reduceLanesTemplate(op);  // specialized
338     }
339 
340     @Override
341     @ForceInline
342     public final short reduceLanes(VectorOperators.Associative op,
343                                     VectorMask<Short> m) {
344         return super.reduceLanesTemplate(op, Short64Mask.class, (Short64Mask) m);  // specialized
345     }
346 
347     @Override
348     @ForceInline
349     public final long reduceLanesToLong(VectorOperators.Associative op) {
350         return (long) super.reduceLanesTemplate(op);  // specialized
351     }
352 
353     @Override
354     @ForceInline
355     public final long reduceLanesToLong(VectorOperators.Associative op,
356                                         VectorMask<Short> m) {
357         return (long) super.reduceLanesTemplate(op, Short64Mask.class, (Short64Mask) m);  // specialized
358     }
359 
360     @ForceInline
361     public VectorShuffle<Short> toShuffle() {
362         return super.toShuffleTemplate(Short64Shuffle.class); // specialize
363     }
364 
365     // Specialized unary testing
366 
367     @Override
368     @ForceInline
369     public final Short64Mask test(Test op) {
370         return super.testTemplate(Short64Mask.class, op);  // specialize
371     }
372 
373     @Override
374     @ForceInline
375     public final Short64Mask test(Test op, VectorMask<Short> m) {
376         return super.testTemplate(Short64Mask.class, op, (Short64Mask) m);  // specialize
377     }
378 
379     // Specialized comparisons
380 
381     @Override
382     @ForceInline
383     public final Short64Mask compare(Comparison op, Vector<Short> v) {
384         return super.compareTemplate(Short64Mask.class, op, v);  // specialize
385     }
386 
387     @Override
388     @ForceInline
389     public final Short64Mask compare(Comparison op, short s) {
390         return super.compareTemplate(Short64Mask.class, op, s);  // specialize
391     }
392 
393     @Override
394     @ForceInline
395     public final Short64Mask compare(Comparison op, long s) {
396         return super.compareTemplate(Short64Mask.class, op, s);  // specialize
397     }
398 
399     @Override
400     @ForceInline
401     public final Short64Mask compare(Comparison op, Vector<Short> v, VectorMask<Short> m) {
402         return super.compareTemplate(Short64Mask.class, op, v, (Short64Mask) m);
403     }
404 
405 
406     @Override
407     @ForceInline
408     public Short64Vector blend(Vector<Short> v, VectorMask<Short> m) {
409         return (Short64Vector)
410             super.blendTemplate(Short64Mask.class,
411                                 (Short64Vector) v,
412                                 (Short64Mask) m);  // specialize
413     }
414 
415     @Override
416     @ForceInline
417     public Short64Vector slice(int origin, Vector<Short> v) {
418         return (Short64Vector) super.sliceTemplate(origin, v);  // specialize
419     }
420 
421     @Override
422     @ForceInline
423     public Short64Vector slice(int origin) {
424         return (Short64Vector) super.sliceTemplate(origin);  // specialize
425     }
426 
427     @Override
428     @ForceInline
429     public Short64Vector unslice(int origin, Vector<Short> w, int part) {
430         return (Short64Vector) super.unsliceTemplate(origin, w, part);  // specialize
431     }
432 
433     @Override
434     @ForceInline
435     public Short64Vector unslice(int origin, Vector<Short> w, int part, VectorMask<Short> m) {
436         return (Short64Vector)
437             super.unsliceTemplate(Short64Mask.class,
438                                   origin, w, part,
439                                   (Short64Mask) m);  // specialize
440     }
441 
442     @Override
443     @ForceInline
444     public Short64Vector unslice(int origin) {
445         return (Short64Vector) super.unsliceTemplate(origin);  // specialize
446     }
447 
448     @Override
449     @ForceInline
450     public Short64Vector rearrange(VectorShuffle<Short> s) {
451         return (Short64Vector)
452             super.rearrangeTemplate(Short64Shuffle.class,
453                                     (Short64Shuffle) s);  // specialize
454     }
455 
456     @Override
457     @ForceInline
458     public Short64Vector rearrange(VectorShuffle<Short> shuffle,
459                                   VectorMask<Short> m) {
460         return (Short64Vector)
461             super.rearrangeTemplate(Short64Shuffle.class,
462                                     Short64Mask.class,
463                                     (Short64Shuffle) shuffle,
464                                     (Short64Mask) m);  // specialize
465     }
466 
467     @Override
468     @ForceInline
469     public Short64Vector rearrange(VectorShuffle<Short> s,
470                                   Vector<Short> v) {
471         return (Short64Vector)
472             super.rearrangeTemplate(Short64Shuffle.class,
473                                     (Short64Shuffle) s,
474                                     (Short64Vector) v);  // specialize
475     }
476 
477     @Override
478     @ForceInline
479     public Short64Vector compress(VectorMask<Short> m) {
480         return (Short64Vector)
481             super.compressTemplate(Short64Mask.class,
482                                    (Short64Mask) m);  // specialize
483     }
484 
485     @Override
486     @ForceInline
487     public Short64Vector expand(VectorMask<Short> m) {
488         return (Short64Vector)
489             super.expandTemplate(Short64Mask.class,
490                                    (Short64Mask) m);  // specialize
491     }
492 
493     @Override
494     @ForceInline
495     public Short64Vector selectFrom(Vector<Short> v) {
496         return (Short64Vector)
497             super.selectFromTemplate((Short64Vector) v);  // specialize
498     }
499 
500     @Override
501     @ForceInline
502     public Short64Vector selectFrom(Vector<Short> v,
503                                    VectorMask<Short> m) {
504         return (Short64Vector)
505             super.selectFromTemplate((Short64Vector) v,
506                                      (Short64Mask) m);  // specialize
507     }
508 
509 
510     @ForceInline
511     @Override
512     public short lane(int i) {
513         switch(i) {
514             case 0: return laneHelper(0);
515             case 1: return laneHelper(1);
516             case 2: return laneHelper(2);
517             case 3: return laneHelper(3);
518             default: throw new IllegalArgumentException("Index " + i + " must be zero or positive, and less than " + VLENGTH);
519         }
520     }
521 
522     public short laneHelper(int i) {
523         return (short) VectorSupport.extract(
524                                 VCLASS, ETYPE, VLENGTH,
525                                 this, i,
526                                 (vec, ix) -> {
527                                     short[] vecarr = vec.vec();
528                                     return (long)vecarr[ix];
529                                 });
530     }
531 
532     @ForceInline
533     @Override
534     public Short64Vector withLane(int i, short e) {
535         switch (i) {
536             case 0: return withLaneHelper(0, e);
537             case 1: return withLaneHelper(1, e);
538             case 2: return withLaneHelper(2, e);
539             case 3: return withLaneHelper(3, e);
540             default: throw new IllegalArgumentException("Index " + i + " must be zero or positive, and less than " + VLENGTH);
541         }
542     }
543 
544     public Short64Vector withLaneHelper(int i, short e) {
545         return VectorSupport.insert(
546                                 VCLASS, ETYPE, VLENGTH,
547                                 this, i, (long)e,
548                                 (v, ix, bits) -> {
549                                     short[] res = v.vec().clone();
550                                     res[ix] = (short)bits;
551                                     return v.vectorFactory(res);
552                                 });
553     }
554 
555     // Mask
556 
557     static final class Short64Mask extends AbstractMask<Short> {
558         static final int VLENGTH = VSPECIES.laneCount();    // used by the JVM
559         static final Class<Short> ETYPE = short.class; // used by the JVM
560 
561         Short64Mask(boolean[] bits) {
562             this(bits, 0);
563         }
564 
565         Short64Mask(boolean[] bits, int offset) {
566             super(prepare(bits, offset));
567         }
568 
569         Short64Mask(boolean val) {
570             super(prepare(val));
571         }
572 
573         private static boolean[] prepare(boolean[] bits, int offset) {
574             boolean[] newBits = new boolean[VSPECIES.laneCount()];
575             for (int i = 0; i < newBits.length; i++) {
576                 newBits[i] = bits[offset + i];
577             }
578             return newBits;
579         }
580 
581         private static boolean[] prepare(boolean val) {
582             boolean[] bits = new boolean[VSPECIES.laneCount()];
583             Arrays.fill(bits, val);
584             return bits;
585         }
586 
587         @ForceInline
588         final @Override
589         public ShortSpecies vspecies() {
590             // ISSUE:  This should probably be a @Stable
591             // field inside AbstractMask, rather than
592             // a megamorphic method.
593             return VSPECIES;
594         }
595 
596         @ForceInline
597         boolean[] getBits() {
598             return (boolean[])getPayload();
599         }
600 
601         @Override
602         Short64Mask uOp(MUnOp f) {
603             boolean[] res = new boolean[vspecies().laneCount()];
604             boolean[] bits = getBits();
605             for (int i = 0; i < res.length; i++) {
606                 res[i] = f.apply(i, bits[i]);
607             }
608             return new Short64Mask(res);
609         }
610 
611         @Override
612         Short64Mask bOp(VectorMask<Short> m, MBinOp f) {
613             boolean[] res = new boolean[vspecies().laneCount()];
614             boolean[] bits = getBits();
615             boolean[] mbits = ((Short64Mask)m).getBits();
616             for (int i = 0; i < res.length; i++) {
617                 res[i] = f.apply(i, bits[i], mbits[i]);
618             }
619             return new Short64Mask(res);
620         }
621 
622         @ForceInline
623         @Override
624         public final
625         Short64Vector toVector() {
626             return (Short64Vector) super.toVectorTemplate();  // specialize
627         }
628 
629         /**
630          * Helper function for lane-wise mask conversions.
631          * This function kicks in after intrinsic failure.
632          */
633         @ForceInline
634         private final <E>
635         VectorMask<E> defaultMaskCast(AbstractSpecies<E> dsp) {
636             if (length() != dsp.laneCount())
637                 throw new IllegalArgumentException("VectorMask length and species length differ");
638             boolean[] maskArray = toArray();
639             return  dsp.maskFactory(maskArray).check(dsp);
640         }
641 
642         @Override
643         @ForceInline
644         public <E> VectorMask<E> cast(VectorSpecies<E> dsp) {
645             AbstractSpecies<E> species = (AbstractSpecies<E>) dsp;
646             if (length() != species.laneCount())
647                 throw new IllegalArgumentException("VectorMask length and species length differ");
648 
649             return VectorSupport.convert(VectorSupport.VECTOR_OP_CAST,
650                 this.getClass(), ETYPE, VLENGTH,
651                 species.maskType(), species.elementType(), VLENGTH,
652                 this, species,
653                 (m, s) -> s.maskFactory(m.toArray()).check(s));
654         }
655 
656         @Override
657         @ForceInline
658         public Short64Mask eq(VectorMask<Short> mask) {
659             Objects.requireNonNull(mask);
660             Short64Mask m = (Short64Mask)mask;
661             return xor(m.not());
662         }
663 
664         // Unary operations
665 
666         @Override
667         @ForceInline
668         public Short64Mask not() {
669             return xor(maskAll(true));
670         }
671 
672         @Override
673         @ForceInline
674         public Short64Mask compress() {
675             return (Short64Mask)VectorSupport.comExpOp(VectorSupport.VECTOR_OP_MASK_COMPRESS,
676                 Short64Vector.class, Short64Mask.class, ETYPE, VLENGTH, null, this,
677                 (v1, m1) -> VSPECIES.iota().compare(VectorOperators.LT, m1.trueCount()));
678         }
679 
680 
681         // Binary operations
682 
683         @Override
684         @ForceInline
685         public Short64Mask and(VectorMask<Short> mask) {
686             Objects.requireNonNull(mask);
687             Short64Mask m = (Short64Mask)mask;
688             return VectorSupport.binaryOp(VECTOR_OP_AND, Short64Mask.class, null, short.class, VLENGTH,
689                                           this, m, null,
690                                           (m1, m2, vm) -> m1.bOp(m2, (i, a, b) -> a & b));
691         }
692 
693         @Override
694         @ForceInline
695         public Short64Mask or(VectorMask<Short> mask) {
696             Objects.requireNonNull(mask);
697             Short64Mask m = (Short64Mask)mask;
698             return VectorSupport.binaryOp(VECTOR_OP_OR, Short64Mask.class, null, short.class, VLENGTH,
699                                           this, m, null,
700                                           (m1, m2, vm) -> m1.bOp(m2, (i, a, b) -> a | b));
701         }
702 
703         @ForceInline
704         /* package-private */
705         Short64Mask xor(VectorMask<Short> mask) {
706             Objects.requireNonNull(mask);
707             Short64Mask m = (Short64Mask)mask;
708             return VectorSupport.binaryOp(VECTOR_OP_XOR, Short64Mask.class, null, short.class, VLENGTH,
709                                           this, m, null,
710                                           (m1, m2, vm) -> m1.bOp(m2, (i, a, b) -> a ^ b));
711         }
712 
713         // Mask Query operations
714 
715         @Override
716         @ForceInline
717         public int trueCount() {
718             return (int) VectorSupport.maskReductionCoerced(VECTOR_OP_MASK_TRUECOUNT, Short64Mask.class, short.class, VLENGTH, this,
719                                                       (m) -> trueCountHelper(m.getBits()));
720         }
721 
722         @Override
723         @ForceInline
724         public int firstTrue() {
725             return (int) VectorSupport.maskReductionCoerced(VECTOR_OP_MASK_FIRSTTRUE, Short64Mask.class, short.class, VLENGTH, this,
726                                                       (m) -> firstTrueHelper(m.getBits()));
727         }
728 
729         @Override
730         @ForceInline
731         public int lastTrue() {
732             return (int) VectorSupport.maskReductionCoerced(VECTOR_OP_MASK_LASTTRUE, Short64Mask.class, short.class, VLENGTH, this,
733                                                       (m) -> lastTrueHelper(m.getBits()));
734         }
735 
736         @Override
737         @ForceInline
738         public long toLong() {
739             if (length() > Long.SIZE) {
740                 throw new UnsupportedOperationException("too many lanes for one long");
741             }
742             return VectorSupport.maskReductionCoerced(VECTOR_OP_MASK_TOLONG, Short64Mask.class, short.class, VLENGTH, this,
743                                                       (m) -> toLongHelper(m.getBits()));
744         }
745 
746         // Reductions
747 
748         @Override
749         @ForceInline
750         public boolean anyTrue() {
751             return VectorSupport.test(BT_ne, Short64Mask.class, short.class, VLENGTH,
752                                          this, vspecies().maskAll(true),
753                                          (m, __) -> anyTrueHelper(((Short64Mask)m).getBits()));
754         }
755 
756         @Override
757         @ForceInline
758         public boolean allTrue() {
759             return VectorSupport.test(BT_overflow, Short64Mask.class, short.class, VLENGTH,
760                                          this, vspecies().maskAll(true),
761                                          (m, __) -> allTrueHelper(((Short64Mask)m).getBits()));
762         }
763 
764         @ForceInline
765         /*package-private*/
766         static Short64Mask maskAll(boolean bit) {
767             return VectorSupport.fromBitsCoerced(Short64Mask.class, short.class, VLENGTH,
768                                                  (bit ? -1 : 0), MODE_BROADCAST, null,
769                                                  (v, __) -> (v != 0 ? TRUE_MASK : FALSE_MASK));
770         }
771         private static final Short64Mask  TRUE_MASK = new Short64Mask(true);
772         private static final Short64Mask FALSE_MASK = new Short64Mask(false);
773 
774     }
775 
776     // Shuffle
777 
778     static final class Short64Shuffle extends AbstractShuffle<Short> {
779         static final int VLENGTH = VSPECIES.laneCount();    // used by the JVM
780         static final Class<Short> ETYPE = short.class; // used by the JVM
781 
782         Short64Shuffle(byte[] reorder) {
783             super(VLENGTH, reorder);
784         }
785 
786         public Short64Shuffle(int[] reorder) {
787             super(VLENGTH, reorder);
788         }
789 
790         public Short64Shuffle(int[] reorder, int i) {
791             super(VLENGTH, reorder, i);
792         }
793 
794         public Short64Shuffle(IntUnaryOperator fn) {
795             super(VLENGTH, fn);
796         }
797 
798         @Override
799         public ShortSpecies vspecies() {
800             return VSPECIES;
801         }
802 
803         static {
804             // There must be enough bits in the shuffle lanes to encode
805             // VLENGTH valid indexes and VLENGTH exceptional ones.
806             assert(VLENGTH < Byte.MAX_VALUE);
807             assert(Byte.MIN_VALUE <= -VLENGTH);
808         }
809         static final Short64Shuffle IOTA = new Short64Shuffle(IDENTITY);
810 
811         @Override
812         @ForceInline
813         public Short64Vector toVector() {
814             return VectorSupport.shuffleToVector(VCLASS, ETYPE, Short64Shuffle.class, this, VLENGTH,
815                                                     (s) -> ((Short64Vector)(((AbstractShuffle<Short>)(s)).toVectorTemplate())));
816         }
817 
818         @Override
819         @ForceInline
820         public <F> VectorShuffle<F> cast(VectorSpecies<F> s) {
821             AbstractSpecies<F> species = (AbstractSpecies<F>) s;
822             if (length() != species.laneCount())
823                 throw new IllegalArgumentException("VectorShuffle length and species length differ");
824             int[] shuffleArray = toArray();
825             return s.shuffleFromArray(shuffleArray, 0).check(s);
826         }
827 
828         @ForceInline
829         @Override
830         public Short64Shuffle rearrange(VectorShuffle<Short> shuffle) {
831             Short64Shuffle s = (Short64Shuffle) shuffle;
832             byte[] reorder1 = reorder();
833             byte[] reorder2 = s.reorder();
834             byte[] r = new byte[reorder1.length];
835             for (int i = 0; i < reorder1.length; i++) {
836                 int ssi = reorder2[i];
837                 r[i] = reorder1[ssi];  // throws on exceptional index
838             }
839             return new Short64Shuffle(r);
840         }
841     }
842 
843     // ================================================
844 
845     // Specialized low-level memory operations.
846 
847     @ForceInline
848     @Override
849     final
850     ShortVector fromArray0(short[] a, int offset) {
851         return super.fromArray0Template(a, offset);  // specialize
852     }
853 
854     @ForceInline
855     @Override
856     final
857     ShortVector fromArray0(short[] a, int offset, VectorMask<Short> m) {
858         return super.fromArray0Template(Short64Mask.class, a, offset, (Short64Mask) m);  // specialize
859     }
860 
861 
862     @ForceInline
863     @Override
864     final
865     ShortVector fromCharArray0(char[] a, int offset) {
866         return super.fromCharArray0Template(a, offset);  // specialize
867     }
868 
869     @ForceInline
870     @Override
871     final
872     ShortVector fromCharArray0(char[] a, int offset, VectorMask<Short> m) {
873         return super.fromCharArray0Template(Short64Mask.class, a, offset, (Short64Mask) m);  // specialize
874     }
875 
876 
877     @ForceInline
878     @Override
879     final
880     ShortVector fromMemorySegment0(MemorySegment ms, long offset) {
881         return super.fromMemorySegment0Template(ms, offset);  // specialize
882     }
883 
884     @ForceInline
885     @Override
886     final
887     ShortVector fromMemorySegment0(MemorySegment ms, long offset, VectorMask<Short> m) {
888         return super.fromMemorySegment0Template(Short64Mask.class, ms, offset, (Short64Mask) m);  // specialize
889     }
890 
891     @ForceInline
892     @Override
893     final
894     void intoArray0(short[] a, int offset) {
895         super.intoArray0Template(a, offset);  // specialize
896     }
897 
898     @ForceInline
899     @Override
900     final
901     void intoArray0(short[] a, int offset, VectorMask<Short> m) {
902         super.intoArray0Template(Short64Mask.class, a, offset, (Short64Mask) m);
903     }
904 
905 
906 
907     @ForceInline
908     @Override
909     final
910     void intoMemorySegment0(MemorySegment ms, long offset, VectorMask<Short> m) {
911         super.intoMemorySegment0Template(Short64Mask.class, ms, offset, (Short64Mask) m);
912     }
913 
914     @ForceInline
915     @Override
916     final
917     void intoCharArray0(char[] a, int offset, VectorMask<Short> m) {
918         super.intoCharArray0Template(Short64Mask.class, a, offset, (Short64Mask) m);
919     }
920 
921     // End of specialized low-level memory operations.
922 
923     // ================================================
924 
925 }