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.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 Int64Vector extends IntVector {
 43     static final IntSpecies VSPECIES =
 44         (IntSpecies) IntVector.SPECIES_64;
 45 
 46     static final VectorShape VSHAPE =
 47         VSPECIES.vectorShape();
 48 
 49     static final Class<Int64Vector> VCLASS = Int64Vector.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<Integer> ETYPE = int.class; // used by the JVM
 56 
 57     Int64Vector(int[] v) {
 58         super(v);
 59     }
 60 
 61     // For compatibility as Int64Vector::new,
 62     // stored into species.vectorFactory.
 63     Int64Vector(Object v) {
 64         this((int[]) v);
 65     }
 66 
 67     static final Int64Vector ZERO = new Int64Vector(new int[VLENGTH]);
 68     static final Int64Vector IOTA = new Int64Vector(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 IntSpecies 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<Integer> elementType() { return int.class; }
 92 
 93     @ForceInline
 94     @Override
 95     public final int elementSize() { return Integer.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     int[] vec() {
117         return (int[])getPayload();
118     }
119 
120     // Virtualized constructors
121 
122     @Override
123     @ForceInline
124     public final Int64Vector broadcast(int e) {
125         return (Int64Vector) super.broadcastTemplate(e);  // specialize
126     }
127 
128     @Override
129     @ForceInline
130     public final Int64Vector broadcast(long e) {
131         return (Int64Vector) super.broadcastTemplate(e);  // specialize
132     }
133 
134     @Override
135     @ForceInline
136     Int64Mask maskFromArray(boolean[] bits) {
137         return new Int64Mask(bits);
138     }
139 
140     @Override
141     @ForceInline
142     Int64Shuffle iotaShuffle() { return Int64Shuffle.IOTA; }
143 
144     @ForceInline
145     Int64Shuffle iotaShuffle(int start, int step, boolean wrap) {
146       if (wrap) {
147         return (Int64Shuffle)VectorSupport.shuffleIota(ETYPE, Int64Shuffle.class, VSPECIES, VLENGTH, start, step, 1,
148                 (l, lstart, lstep, s) -> s.shuffleFromOp(i -> (VectorIntrinsics.wrapToRange(i*lstep + lstart, l))));
149       } else {
150         return (Int64Shuffle)VectorSupport.shuffleIota(ETYPE, Int64Shuffle.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     Int64Shuffle shuffleFromBytes(byte[] reorder) { return new Int64Shuffle(reorder); }
158 
159     @Override
160     @ForceInline
161     Int64Shuffle shuffleFromArray(int[] indexes, int i) { return new Int64Shuffle(indexes, i); }
162 
163     @Override
164     @ForceInline
165     Int64Shuffle shuffleFromOp(IntUnaryOperator fn) { return new Int64Shuffle(fn); }
166 
167     // Make a vector of the same species but the given elements:
168     @ForceInline
169     final @Override
170     Int64Vector vectorFactory(int[] vec) {
171         return new Int64Vector(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     Int64Vector uOp(FUnOp f) {
191         return (Int64Vector) super.uOpTemplate(f);  // specialize
192     }
193 
194     @ForceInline
195     final @Override
196     Int64Vector uOp(VectorMask<Integer> m, FUnOp f) {
197         return (Int64Vector)
198             super.uOpTemplate((Int64Mask)m, f);  // specialize
199     }
200 
201     // Binary operator
202 
203     @ForceInline
204     final @Override
205     Int64Vector bOp(Vector<Integer> v, FBinOp f) {
206         return (Int64Vector) super.bOpTemplate((Int64Vector)v, f);  // specialize
207     }
208 
209     @ForceInline
210     final @Override
211     Int64Vector bOp(Vector<Integer> v,
212                      VectorMask<Integer> m, FBinOp f) {
213         return (Int64Vector)
214             super.bOpTemplate((Int64Vector)v, (Int64Mask)m,
215                               f);  // specialize
216     }
217 
218     // Ternary operator
219 
220     @ForceInline
221     final @Override
222     Int64Vector tOp(Vector<Integer> v1, Vector<Integer> v2, FTriOp f) {
223         return (Int64Vector)
224             super.tOpTemplate((Int64Vector)v1, (Int64Vector)v2,
225                               f);  // specialize
226     }
227 
228     @ForceInline
229     final @Override
230     Int64Vector tOp(Vector<Integer> v1, Vector<Integer> v2,
231                      VectorMask<Integer> m, FTriOp f) {
232         return (Int64Vector)
233             super.tOpTemplate((Int64Vector)v1, (Int64Vector)v2,
234                               (Int64Mask)m, f);  // specialize
235     }
236 
237     @ForceInline
238     final @Override
239     int rOp(int v, VectorMask<Integer> 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<Integer,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 Int64Vector lanewise(Unary op) {
273         return (Int64Vector) super.lanewiseTemplate(op);  // specialize
274     }
275 
276     @Override
277     @ForceInline
278     public Int64Vector lanewise(Unary op, VectorMask<Integer> m) {
279         return (Int64Vector) super.lanewiseTemplate(op, Int64Mask.class, (Int64Mask) m);  // specialize
280     }
281 
282     @Override
283     @ForceInline
284     public Int64Vector lanewise(Binary op, Vector<Integer> v) {
285         return (Int64Vector) super.lanewiseTemplate(op, v);  // specialize
286     }
287 
288     @Override
289     @ForceInline
290     public Int64Vector lanewise(Binary op, Vector<Integer> v, VectorMask<Integer> m) {
291         return (Int64Vector) super.lanewiseTemplate(op, Int64Mask.class, v, (Int64Mask) m);  // specialize
292     }
293 
294     /*package-private*/
295     @Override
296     @ForceInline Int64Vector
297     lanewiseShift(VectorOperators.Binary op, int e) {
298         return (Int64Vector) super.lanewiseShiftTemplate(op, e);  // specialize
299     }
300 
301     /*package-private*/
302     @Override
303     @ForceInline Int64Vector
304     lanewiseShift(VectorOperators.Binary op, int e, VectorMask<Integer> m) {
305         return (Int64Vector) super.lanewiseShiftTemplate(op, Int64Mask.class, e, (Int64Mask) m);  // specialize
306     }
307 
308     /*package-private*/
309     @Override
310     @ForceInline
311     public final
312     Int64Vector
313     lanewise(Ternary op, Vector<Integer> v1, Vector<Integer> v2) {
314         return (Int64Vector) super.lanewiseTemplate(op, v1, v2);  // specialize
315     }
316 
317     @Override
318     @ForceInline
319     public final
320     Int64Vector
321     lanewise(Ternary op, Vector<Integer> v1, Vector<Integer> v2, VectorMask<Integer> m) {
322         return (Int64Vector) super.lanewiseTemplate(op, Int64Mask.class, v1, v2, (Int64Mask) m);  // specialize
323     }
324 
325     @Override
326     @ForceInline
327     public final
328     Int64Vector addIndex(int scale) {
329         return (Int64Vector) super.addIndexTemplate(scale);  // specialize
330     }
331 
332     // Type specific horizontal reductions
333 
334     @Override
335     @ForceInline
336     public final int reduceLanes(VectorOperators.Associative op) {
337         return super.reduceLanesTemplate(op);  // specialized
338     }
339 
340     @Override
341     @ForceInline
342     public final int reduceLanes(VectorOperators.Associative op,
343                                     VectorMask<Integer> m) {
344         return super.reduceLanesTemplate(op, Int64Mask.class, (Int64Mask) 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<Integer> m) {
357         return (long) super.reduceLanesTemplate(op, Int64Mask.class, (Int64Mask) m);  // specialized
358     }
359 
360     @ForceInline
361     public VectorShuffle<Integer> toShuffle() {
362         return super.toShuffleTemplate(Int64Shuffle.class); // specialize
363     }
364 
365     // Specialized unary testing
366 
367     @Override
368     @ForceInline
369     public final Int64Mask test(Test op) {
370         return super.testTemplate(Int64Mask.class, op);  // specialize
371     }
372 
373     @Override
374     @ForceInline
375     public final Int64Mask test(Test op, VectorMask<Integer> m) {
376         return super.testTemplate(Int64Mask.class, op, (Int64Mask) m);  // specialize
377     }
378 
379     // Specialized comparisons
380 
381     @Override
382     @ForceInline
383     public final Int64Mask compare(Comparison op, Vector<Integer> v) {
384         return super.compareTemplate(Int64Mask.class, op, v);  // specialize
385     }
386 
387     @Override
388     @ForceInline
389     public final Int64Mask compare(Comparison op, int s) {
390         return super.compareTemplate(Int64Mask.class, op, s);  // specialize
391     }
392 
393     @Override
394     @ForceInline
395     public final Int64Mask compare(Comparison op, long s) {
396         return super.compareTemplate(Int64Mask.class, op, s);  // specialize
397     }
398 
399     @Override
400     @ForceInline
401     public final Int64Mask compare(Comparison op, Vector<Integer> v, VectorMask<Integer> m) {
402         return super.compareTemplate(Int64Mask.class, op, v, (Int64Mask) m);
403     }
404 
405 
406     @Override
407     @ForceInline
408     public Int64Vector blend(Vector<Integer> v, VectorMask<Integer> m) {
409         return (Int64Vector)
410             super.blendTemplate(Int64Mask.class,
411                                 (Int64Vector) v,
412                                 (Int64Mask) m);  // specialize
413     }
414 
415     @Override
416     @ForceInline
417     public Int64Vector slice(int origin, Vector<Integer> v) {
418         return (Int64Vector) super.sliceTemplate(origin, v);  // specialize
419     }
420 
421     @Override
422     @ForceInline
423     public Int64Vector slice(int origin) {
424         return (Int64Vector) super.sliceTemplate(origin);  // specialize
425     }
426 
427     @Override
428     @ForceInline
429     public Int64Vector unslice(int origin, Vector<Integer> w, int part) {
430         return (Int64Vector) super.unsliceTemplate(origin, w, part);  // specialize
431     }
432 
433     @Override
434     @ForceInline
435     public Int64Vector unslice(int origin, Vector<Integer> w, int part, VectorMask<Integer> m) {
436         return (Int64Vector)
437             super.unsliceTemplate(Int64Mask.class,
438                                   origin, w, part,
439                                   (Int64Mask) m);  // specialize
440     }
441 
442     @Override
443     @ForceInline
444     public Int64Vector unslice(int origin) {
445         return (Int64Vector) super.unsliceTemplate(origin);  // specialize
446     }
447 
448     @Override
449     @ForceInline
450     public Int64Vector rearrange(VectorShuffle<Integer> s) {
451         return (Int64Vector)
452             super.rearrangeTemplate(Int64Shuffle.class,
453                                     (Int64Shuffle) s);  // specialize
454     }
455 
456     @Override
457     @ForceInline
458     public Int64Vector rearrange(VectorShuffle<Integer> shuffle,
459                                   VectorMask<Integer> m) {
460         return (Int64Vector)
461             super.rearrangeTemplate(Int64Shuffle.class,
462                                     Int64Mask.class,
463                                     (Int64Shuffle) shuffle,
464                                     (Int64Mask) m);  // specialize
465     }
466 
467     @Override
468     @ForceInline
469     public Int64Vector rearrange(VectorShuffle<Integer> s,
470                                   Vector<Integer> v) {
471         return (Int64Vector)
472             super.rearrangeTemplate(Int64Shuffle.class,
473                                     (Int64Shuffle) s,
474                                     (Int64Vector) v);  // specialize
475     }
476 
477     @Override
478     @ForceInline
479     public Int64Vector selectFrom(Vector<Integer> v) {
480         return (Int64Vector)
481             super.selectFromTemplate((Int64Vector) v);  // specialize
482     }
483 
484     @Override
485     @ForceInline
486     public Int64Vector selectFrom(Vector<Integer> v,
487                                    VectorMask<Integer> m) {
488         return (Int64Vector)
489             super.selectFromTemplate((Int64Vector) v,
490                                      (Int64Mask) m);  // specialize
491     }
492 
493 
494     @ForceInline
495     @Override
496     public int lane(int i) {
497         switch(i) {
498             case 0: return laneHelper(0);
499             case 1: return laneHelper(1);
500             default: throw new IllegalArgumentException("Index " + i + " must be zero or positive, and less than " + VLENGTH);
501         }
502     }
503 
504     public int laneHelper(int i) {
505         return (int) VectorSupport.extract(
506                                 VCLASS, ETYPE, VLENGTH,
507                                 this, i,
508                                 (vec, ix) -> {
509                                     int[] vecarr = vec.vec();
510                                     return (long)vecarr[ix];
511                                 });
512     }
513 
514     @ForceInline
515     @Override
516     public Int64Vector withLane(int i, int e) {
517         switch (i) {
518             case 0: return withLaneHelper(0, e);
519             case 1: return withLaneHelper(1, e);
520             default: throw new IllegalArgumentException("Index " + i + " must be zero or positive, and less than " + VLENGTH);
521         }
522     }
523 
524     public Int64Vector withLaneHelper(int i, int e) {
525         return VectorSupport.insert(
526                                 VCLASS, ETYPE, VLENGTH,
527                                 this, i, (long)e,
528                                 (v, ix, bits) -> {
529                                     int[] res = v.vec().clone();
530                                     res[ix] = (int)bits;
531                                     return v.vectorFactory(res);
532                                 });
533     }
534 
535     // Mask
536 
537     static final class Int64Mask extends AbstractMask<Integer> {
538         static final int VLENGTH = VSPECIES.laneCount();    // used by the JVM
539         static final Class<Integer> ETYPE = int.class; // used by the JVM
540 
541         Int64Mask(boolean[] bits) {
542             this(bits, 0);
543         }
544 
545         Int64Mask(boolean[] bits, int offset) {
546             super(prepare(bits, offset));
547         }
548 
549         Int64Mask(boolean val) {
550             super(prepare(val));
551         }
552 
553         private static boolean[] prepare(boolean[] bits, int offset) {
554             boolean[] newBits = new boolean[VSPECIES.laneCount()];
555             for (int i = 0; i < newBits.length; i++) {
556                 newBits[i] = bits[offset + i];
557             }
558             return newBits;
559         }
560 
561         private static boolean[] prepare(boolean val) {
562             boolean[] bits = new boolean[VSPECIES.laneCount()];
563             Arrays.fill(bits, val);
564             return bits;
565         }
566 
567         @ForceInline
568         final @Override
569         public IntSpecies vspecies() {
570             // ISSUE:  This should probably be a @Stable
571             // field inside AbstractMask, rather than
572             // a megamorphic method.
573             return VSPECIES;
574         }
575 
576         @ForceInline
577         boolean[] getBits() {
578             return (boolean[])getPayload();
579         }
580 
581         @Override
582         Int64Mask uOp(MUnOp f) {
583             boolean[] res = new boolean[vspecies().laneCount()];
584             boolean[] bits = getBits();
585             for (int i = 0; i < res.length; i++) {
586                 res[i] = f.apply(i, bits[i]);
587             }
588             return new Int64Mask(res);
589         }
590 
591         @Override
592         Int64Mask bOp(VectorMask<Integer> m, MBinOp f) {
593             boolean[] res = new boolean[vspecies().laneCount()];
594             boolean[] bits = getBits();
595             boolean[] mbits = ((Int64Mask)m).getBits();
596             for (int i = 0; i < res.length; i++) {
597                 res[i] = f.apply(i, bits[i], mbits[i]);
598             }
599             return new Int64Mask(res);
600         }
601 
602         @ForceInline
603         @Override
604         public final
605         Int64Vector toVector() {
606             return (Int64Vector) super.toVectorTemplate();  // specialize
607         }
608 
609         /**
610          * Helper function for lane-wise mask conversions.
611          * This function kicks in after intrinsic failure.
612          */
613         @ForceInline
614         private final <E>
615         VectorMask<E> defaultMaskCast(AbstractSpecies<E> dsp) {
616             if (length() != dsp.laneCount())
617                 throw new IllegalArgumentException("VectorMask length and species length differ");
618             boolean[] maskArray = toArray();
619             return  dsp.maskFactory(maskArray).check(dsp);
620         }
621 
622         @Override
623         @ForceInline
624         public <E> VectorMask<E> cast(VectorSpecies<E> dsp) {
625             AbstractSpecies<E> species = (AbstractSpecies<E>) dsp;
626             if (length() != species.laneCount())
627                 throw new IllegalArgumentException("VectorMask length and species length differ");
628 
629             return VectorSupport.convert(VectorSupport.VECTOR_OP_CAST,
630                 this.getClass(), ETYPE, VLENGTH,
631                 species.maskType(), species.elementType(), VLENGTH,
632                 this, species,
633                 (m, s) -> s.maskFactory(m.toArray()).check(s));
634         }
635 
636         @Override
637         @ForceInline
638         public Int64Mask eq(VectorMask<Integer> mask) {
639             Objects.requireNonNull(mask);
640             Int64Mask m = (Int64Mask)mask;
641             return xor(m.not());
642         }
643 
644         // Unary operations
645 
646         @Override
647         @ForceInline
648         public Int64Mask not() {
649             return xor(maskAll(true));
650         }
651 
652         // Binary operations
653 
654         @Override
655         @ForceInline
656         public Int64Mask and(VectorMask<Integer> mask) {
657             Objects.requireNonNull(mask);
658             Int64Mask m = (Int64Mask)mask;
659             return VectorSupport.binaryOp(VECTOR_OP_AND, Int64Mask.class, null, int.class, VLENGTH,
660                                           this, m, null,
661                                           (m1, m2, vm) -> m1.bOp(m2, (i, a, b) -> a & b));
662         }
663 
664         @Override
665         @ForceInline
666         public Int64Mask or(VectorMask<Integer> mask) {
667             Objects.requireNonNull(mask);
668             Int64Mask m = (Int64Mask)mask;
669             return VectorSupport.binaryOp(VECTOR_OP_OR, Int64Mask.class, null, int.class, VLENGTH,
670                                           this, m, null,
671                                           (m1, m2, vm) -> m1.bOp(m2, (i, a, b) -> a | b));
672         }
673 
674         @ForceInline
675         /* package-private */
676         Int64Mask xor(VectorMask<Integer> mask) {
677             Objects.requireNonNull(mask);
678             Int64Mask m = (Int64Mask)mask;
679             return VectorSupport.binaryOp(VECTOR_OP_XOR, Int64Mask.class, null, int.class, VLENGTH,
680                                           this, m, null,
681                                           (m1, m2, vm) -> m1.bOp(m2, (i, a, b) -> a ^ b));
682         }
683 
684         // Mask Query operations
685 
686         @Override
687         @ForceInline
688         public int trueCount() {
689             return (int) VectorSupport.maskReductionCoerced(VECTOR_OP_MASK_TRUECOUNT, Int64Mask.class, int.class, VLENGTH, this,
690                                                       (m) -> trueCountHelper(m.getBits()));
691         }
692 
693         @Override
694         @ForceInline
695         public int firstTrue() {
696             return (int) VectorSupport.maskReductionCoerced(VECTOR_OP_MASK_FIRSTTRUE, Int64Mask.class, int.class, VLENGTH, this,
697                                                       (m) -> firstTrueHelper(m.getBits()));
698         }
699 
700         @Override
701         @ForceInline
702         public int lastTrue() {
703             return (int) VectorSupport.maskReductionCoerced(VECTOR_OP_MASK_LASTTRUE, Int64Mask.class, int.class, VLENGTH, this,
704                                                       (m) -> lastTrueHelper(m.getBits()));
705         }
706 
707         @Override
708         @ForceInline
709         public long toLong() {
710             if (length() > Long.SIZE) {
711                 throw new UnsupportedOperationException("too many lanes for one long");
712             }
713             return VectorSupport.maskReductionCoerced(VECTOR_OP_MASK_TOLONG, Int64Mask.class, int.class, VLENGTH, this,
714                                                       (m) -> toLongHelper(m.getBits()));
715         }
716 
717         // Reductions
718 
719         @Override
720         @ForceInline
721         public boolean anyTrue() {
722             return VectorSupport.test(BT_ne, Int64Mask.class, int.class, VLENGTH,
723                                          this, vspecies().maskAll(true),
724                                          (m, __) -> anyTrueHelper(((Int64Mask)m).getBits()));
725         }
726 
727         @Override
728         @ForceInline
729         public boolean allTrue() {
730             return VectorSupport.test(BT_overflow, Int64Mask.class, int.class, VLENGTH,
731                                          this, vspecies().maskAll(true),
732                                          (m, __) -> allTrueHelper(((Int64Mask)m).getBits()));
733         }
734 
735         @ForceInline
736         /*package-private*/
737         static Int64Mask maskAll(boolean bit) {
738             return VectorSupport.fromBitsCoerced(Int64Mask.class, int.class, VLENGTH,
739                                                  (bit ? -1 : 0), MODE_BROADCAST, null,
740                                                  (v, __) -> (v != 0 ? TRUE_MASK : FALSE_MASK));
741         }
742         private static final Int64Mask  TRUE_MASK = new Int64Mask(true);
743         private static final Int64Mask FALSE_MASK = new Int64Mask(false);
744 
745     }
746 
747     // Shuffle
748 
749     static final class Int64Shuffle extends AbstractShuffle<Integer> {
750         static final int VLENGTH = VSPECIES.laneCount();    // used by the JVM
751         static final Class<Integer> ETYPE = int.class; // used by the JVM
752 
753         Int64Shuffle(byte[] reorder) {
754             super(VLENGTH, reorder);
755         }
756 
757         public Int64Shuffle(int[] reorder) {
758             super(VLENGTH, reorder);
759         }
760 
761         public Int64Shuffle(int[] reorder, int i) {
762             super(VLENGTH, reorder, i);
763         }
764 
765         public Int64Shuffle(IntUnaryOperator fn) {
766             super(VLENGTH, fn);
767         }
768 
769         @Override
770         public IntSpecies vspecies() {
771             return VSPECIES;
772         }
773 
774         static {
775             // There must be enough bits in the shuffle lanes to encode
776             // VLENGTH valid indexes and VLENGTH exceptional ones.
777             assert(VLENGTH < Byte.MAX_VALUE);
778             assert(Byte.MIN_VALUE <= -VLENGTH);
779         }
780         static final Int64Shuffle IOTA = new Int64Shuffle(IDENTITY);
781 
782         @Override
783         @ForceInline
784         public Int64Vector toVector() {
785             return VectorSupport.shuffleToVector(VCLASS, ETYPE, Int64Shuffle.class, this, VLENGTH,
786                                                     (s) -> ((Int64Vector)(((AbstractShuffle<Integer>)(s)).toVectorTemplate())));
787         }
788 
789         @Override
790         @ForceInline
791         public <F> VectorShuffle<F> cast(VectorSpecies<F> s) {
792             AbstractSpecies<F> species = (AbstractSpecies<F>) s;
793             if (length() != species.laneCount())
794                 throw new IllegalArgumentException("VectorShuffle length and species length differ");
795             int[] shuffleArray = toArray();
796             return s.shuffleFromArray(shuffleArray, 0).check(s);
797         }
798 
799         @ForceInline
800         @Override
801         public Int64Shuffle rearrange(VectorShuffle<Integer> shuffle) {
802             Int64Shuffle s = (Int64Shuffle) shuffle;
803             byte[] reorder1 = reorder();
804             byte[] reorder2 = s.reorder();
805             byte[] r = new byte[reorder1.length];
806             for (int i = 0; i < reorder1.length; i++) {
807                 int ssi = reorder2[i];
808                 r[i] = reorder1[ssi];  // throws on exceptional index
809             }
810             return new Int64Shuffle(r);
811         }
812     }
813 
814     // ================================================
815 
816     // Specialized low-level memory operations.
817 
818     @ForceInline
819     @Override
820     final
821     IntVector fromArray0(int[] a, int offset) {
822         return super.fromArray0Template(a, offset);  // specialize
823     }
824 
825     @ForceInline
826     @Override
827     final
828     IntVector fromArray0(int[] a, int offset, VectorMask<Integer> m) {
829         return super.fromArray0Template(Int64Mask.class, a, offset, (Int64Mask) m);  // specialize
830     }
831 
832     @ForceInline
833     @Override
834     final
835     IntVector fromArray0(int[] a, int offset, int[] indexMap, int mapOffset, VectorMask<Integer> m) {
836         return super.fromArray0Template(Int64Mask.class, a, offset, indexMap, mapOffset, (Int64Mask) m);
837     }
838 
839 
840 
841     @ForceInline
842     @Override
843     final
844     IntVector fromByteArray0(byte[] a, int offset) {
845         return super.fromByteArray0Template(a, offset);  // specialize
846     }
847 
848     @ForceInline
849     @Override
850     final
851     IntVector fromByteArray0(byte[] a, int offset, VectorMask<Integer> m) {
852         return super.fromByteArray0Template(Int64Mask.class, a, offset, (Int64Mask) m);  // specialize
853     }
854 
855     @ForceInline
856     @Override
857     final
858     IntVector fromByteBuffer0(ByteBuffer bb, int offset) {
859         return super.fromByteBuffer0Template(bb, offset);  // specialize
860     }
861 
862     @ForceInline
863     @Override
864     final
865     IntVector fromByteBuffer0(ByteBuffer bb, int offset, VectorMask<Integer> m) {
866         return super.fromByteBuffer0Template(Int64Mask.class, bb, offset, (Int64Mask) m);  // specialize
867     }
868 
869     @ForceInline
870     @Override
871     final
872     void intoArray0(int[] a, int offset) {
873         super.intoArray0Template(a, offset);  // specialize
874     }
875 
876     @ForceInline
877     @Override
878     final
879     void intoArray0(int[] a, int offset, VectorMask<Integer> m) {
880         super.intoArray0Template(Int64Mask.class, a, offset, (Int64Mask) m);
881     }
882 
883     @ForceInline
884     @Override
885     final
886     void intoArray0(int[] a, int offset, int[] indexMap, int mapOffset, VectorMask<Integer> m) {
887         super.intoArray0Template(Int64Mask.class, a, offset, indexMap, mapOffset, (Int64Mask) m);
888     }
889 
890 
891     @ForceInline
892     @Override
893     final
894     void intoByteArray0(byte[] a, int offset) {
895         super.intoByteArray0Template(a, offset);  // specialize
896     }
897 
898     @ForceInline
899     @Override
900     final
901     void intoByteArray0(byte[] a, int offset, VectorMask<Integer> m) {
902         super.intoByteArray0Template(Int64Mask.class, a, offset, (Int64Mask) m);  // specialize
903     }
904 
905     @ForceInline
906     @Override
907     final
908     void intoByteBuffer0(ByteBuffer bb, int offset, VectorMask<Integer> m) {
909         super.intoByteBuffer0Template(Int64Mask.class, bb, offset, (Int64Mask) m);
910     }
911 
912 
913     // End of specialized low-level memory operations.
914 
915     // ================================================
916 
917 }