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 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     // Specialized comparisons
374 
375     @Override
376     @ForceInline
377     public final Int64Mask compare(Comparison op, Vector<Integer> v) {
378         return super.compareTemplate(Int64Mask.class, op, v);  // specialize
379     }
380 
381     @Override
382     @ForceInline
383     public final Int64Mask compare(Comparison op, int s) {
384         return super.compareTemplate(Int64Mask.class, op, s);  // specialize
385     }
386 
387     @Override
388     @ForceInline
389     public final Int64Mask compare(Comparison op, long s) {
390         return super.compareTemplate(Int64Mask.class, op, s);  // specialize
391     }
392 
393     @Override
394     @ForceInline
395     public final Int64Mask compare(Comparison op, Vector<Integer> v, VectorMask<Integer> m) {
396         return super.compareTemplate(Int64Mask.class, op, v, (Int64Mask) m);
397     }
398 
399 
400     @Override
401     @ForceInline
402     public Int64Vector blend(Vector<Integer> v, VectorMask<Integer> m) {
403         return (Int64Vector)
404             super.blendTemplate(Int64Mask.class,
405                                 (Int64Vector) v,
406                                 (Int64Mask) m);  // specialize
407     }
408 
409     @Override
410     @ForceInline
411     public Int64Vector slice(int origin, Vector<Integer> v) {
412         return (Int64Vector) super.sliceTemplate(origin, v);  // specialize
413     }
414 
415     @Override
416     @ForceInline
417     public Int64Vector slice(int origin) {
418         return (Int64Vector) super.sliceTemplate(origin);  // specialize
419     }
420 
421     @Override
422     @ForceInline
423     public Int64Vector unslice(int origin, Vector<Integer> w, int part) {
424         return (Int64Vector) super.unsliceTemplate(origin, w, part);  // specialize
425     }
426 
427     @Override
428     @ForceInline
429     public Int64Vector unslice(int origin, Vector<Integer> w, int part, VectorMask<Integer> m) {
430         return (Int64Vector)
431             super.unsliceTemplate(Int64Mask.class,
432                                   origin, w, part,
433                                   (Int64Mask) m);  // specialize
434     }
435 
436     @Override
437     @ForceInline
438     public Int64Vector unslice(int origin) {
439         return (Int64Vector) super.unsliceTemplate(origin);  // specialize
440     }
441 
442     @Override
443     @ForceInline
444     public Int64Vector rearrange(VectorShuffle<Integer> s) {
445         return (Int64Vector)
446             super.rearrangeTemplate(Int64Shuffle.class,
447                                     (Int64Shuffle) s);  // specialize
448     }
449 
450     @Override
451     @ForceInline
452     public Int64Vector rearrange(VectorShuffle<Integer> shuffle,
453                                   VectorMask<Integer> m) {
454         return (Int64Vector)
455             super.rearrangeTemplate(Int64Shuffle.class,
456                                     Int64Mask.class,
457                                     (Int64Shuffle) shuffle,
458                                     (Int64Mask) m);  // specialize
459     }
460 
461     @Override
462     @ForceInline
463     public Int64Vector rearrange(VectorShuffle<Integer> s,
464                                   Vector<Integer> v) {
465         return (Int64Vector)
466             super.rearrangeTemplate(Int64Shuffle.class,
467                                     (Int64Shuffle) s,
468                                     (Int64Vector) v);  // specialize
469     }
470 
471     @Override
472     @ForceInline
473     public Int64Vector compress(VectorMask<Integer> m) {
474         return (Int64Vector)
475             super.compressTemplate(Int64Mask.class,
476                                    (Int64Mask) m);  // specialize
477     }
478 
479     @Override
480     @ForceInline
481     public Int64Vector expand(VectorMask<Integer> m) {
482         return (Int64Vector)
483             super.expandTemplate(Int64Mask.class,
484                                    (Int64Mask) m);  // specialize
485     }
486 
487     @Override
488     @ForceInline
489     public Int64Vector selectFrom(Vector<Integer> v) {
490         return (Int64Vector)
491             super.selectFromTemplate((Int64Vector) v);  // specialize
492     }
493 
494     @Override
495     @ForceInline
496     public Int64Vector selectFrom(Vector<Integer> v,
497                                    VectorMask<Integer> m) {
498         return (Int64Vector)
499             super.selectFromTemplate((Int64Vector) v,
500                                      (Int64Mask) m);  // specialize
501     }
502 
503 
504     @ForceInline
505     @Override
506     public int lane(int i) {
507         switch(i) {
508             case 0: return laneHelper(0);
509             case 1: return laneHelper(1);
510             default: throw new IllegalArgumentException("Index " + i + " must be zero or positive, and less than " + VLENGTH);
511         }
512     }
513 
514     public int laneHelper(int i) {
515         return (int) VectorSupport.extract(
516                                 VCLASS, ETYPE, VLENGTH,
517                                 this, i,
518                                 (vec, ix) -> {
519                                     int[] vecarr = vec.vec();
520                                     return (long)vecarr[ix];
521                                 });
522     }
523 
524     @ForceInline
525     @Override
526     public Int64Vector withLane(int i, int e) {
527         switch (i) {
528             case 0: return withLaneHelper(0, e);
529             case 1: return withLaneHelper(1, e);
530             default: throw new IllegalArgumentException("Index " + i + " must be zero or positive, and less than " + VLENGTH);
531         }
532     }
533 
534     public Int64Vector withLaneHelper(int i, int e) {
535         return VectorSupport.insert(
536                                 VCLASS, ETYPE, VLENGTH,
537                                 this, i, (long)e,
538                                 (v, ix, bits) -> {
539                                     int[] res = v.vec().clone();
540                                     res[ix] = (int)bits;
541                                     return v.vectorFactory(res);
542                                 });
543     }
544 
545     // Mask
546 
547     static final class Int64Mask extends AbstractMask<Integer> {
548         static final int VLENGTH = VSPECIES.laneCount();    // used by the JVM
549         static final Class<Integer> ETYPE = int.class; // used by the JVM
550 
551         Int64Mask(boolean[] bits) {
552             this(bits, 0);
553         }
554 
555         Int64Mask(boolean[] bits, int offset) {
556             super(prepare(bits, offset));
557         }
558 
559         Int64Mask(boolean val) {
560             super(prepare(val));
561         }
562 
563         private static boolean[] prepare(boolean[] bits, int offset) {
564             boolean[] newBits = new boolean[VSPECIES.laneCount()];
565             for (int i = 0; i < newBits.length; i++) {
566                 newBits[i] = bits[offset + i];
567             }
568             return newBits;
569         }
570 
571         private static boolean[] prepare(boolean val) {
572             boolean[] bits = new boolean[VSPECIES.laneCount()];
573             Arrays.fill(bits, val);
574             return bits;
575         }
576 
577         @ForceInline
578         final @Override
579         public IntSpecies vspecies() {
580             // ISSUE:  This should probably be a @Stable
581             // field inside AbstractMask, rather than
582             // a megamorphic method.
583             return VSPECIES;
584         }
585 
586         @ForceInline
587         boolean[] getBits() {
588             return (boolean[])getPayload();
589         }
590 
591         @Override
592         Int64Mask uOp(MUnOp f) {
593             boolean[] res = new boolean[vspecies().laneCount()];
594             boolean[] bits = getBits();
595             for (int i = 0; i < res.length; i++) {
596                 res[i] = f.apply(i, bits[i]);
597             }
598             return new Int64Mask(res);
599         }
600 
601         @Override
602         Int64Mask bOp(VectorMask<Integer> m, MBinOp f) {
603             boolean[] res = new boolean[vspecies().laneCount()];
604             boolean[] bits = getBits();
605             boolean[] mbits = ((Int64Mask)m).getBits();
606             for (int i = 0; i < res.length; i++) {
607                 res[i] = f.apply(i, bits[i], mbits[i]);
608             }
609             return new Int64Mask(res);
610         }
611 
612         @ForceInline
613         @Override
614         public final
615         Int64Vector toVector() {
616             return (Int64Vector) super.toVectorTemplate();  // specialize
617         }
618 
619         /**
620          * Helper function for lane-wise mask conversions.
621          * This function kicks in after intrinsic failure.
622          */
623         @ForceInline
624         private final <E>
625         VectorMask<E> defaultMaskCast(AbstractSpecies<E> dsp) {
626             if (length() != dsp.laneCount())
627                 throw new IllegalArgumentException("VectorMask length and species length differ");
628             boolean[] maskArray = toArray();
629             return  dsp.maskFactory(maskArray).check(dsp);
630         }
631 
632         @Override
633         @ForceInline
634         public <E> VectorMask<E> cast(VectorSpecies<E> dsp) {
635             AbstractSpecies<E> species = (AbstractSpecies<E>) dsp;
636             if (length() != species.laneCount())
637                 throw new IllegalArgumentException("VectorMask length and species length differ");
638 
639             return VectorSupport.convert(VectorSupport.VECTOR_OP_CAST,
640                 this.getClass(), ETYPE, VLENGTH,
641                 species.maskType(), species.elementType(), VLENGTH,
642                 this, species,
643                 (m, s) -> s.maskFactory(m.toArray()).check(s));
644         }
645 
646         @Override
647         @ForceInline
648         public Int64Mask eq(VectorMask<Integer> mask) {
649             Objects.requireNonNull(mask);
650             Int64Mask m = (Int64Mask)mask;
651             return xor(m.not());
652         }
653 
654         // Unary operations
655 
656         @Override
657         @ForceInline
658         public Int64Mask not() {
659             return xor(maskAll(true));
660         }
661 
662         @Override
663         @ForceInline
664         public Int64Mask compress() {
665             return (Int64Mask)VectorSupport.comExpOp(VectorSupport.VECTOR_OP_MASK_COMPRESS,
666                 Int64Vector.class, Int64Mask.class, ETYPE, VLENGTH, null, this,
667                 (v1, m1) -> VSPECIES.iota().compare(VectorOperators.LT, m1.trueCount()));
668         }
669 
670 
671         // Binary operations
672 
673         @Override
674         @ForceInline
675         public Int64Mask and(VectorMask<Integer> mask) {
676             Objects.requireNonNull(mask);
677             Int64Mask m = (Int64Mask)mask;
678             return VectorSupport.binaryOp(VECTOR_OP_AND, Int64Mask.class, null, int.class, VLENGTH,
679                                           this, m, null,
680                                           (m1, m2, vm) -> m1.bOp(m2, (i, a, b) -> a & b));
681         }
682 
683         @Override
684         @ForceInline
685         public Int64Mask or(VectorMask<Integer> mask) {
686             Objects.requireNonNull(mask);
687             Int64Mask m = (Int64Mask)mask;
688             return VectorSupport.binaryOp(VECTOR_OP_OR, Int64Mask.class, null, int.class, VLENGTH,
689                                           this, m, null,
690                                           (m1, m2, vm) -> m1.bOp(m2, (i, a, b) -> a | b));
691         }
692 
693         @ForceInline
694         /* package-private */
695         Int64Mask xor(VectorMask<Integer> mask) {
696             Objects.requireNonNull(mask);
697             Int64Mask m = (Int64Mask)mask;
698             return VectorSupport.binaryOp(VECTOR_OP_XOR, Int64Mask.class, null, int.class, VLENGTH,
699                                           this, m, null,
700                                           (m1, m2, vm) -> m1.bOp(m2, (i, a, b) -> a ^ b));
701         }
702 
703         // Mask Query operations
704 
705         @Override
706         @ForceInline
707         public int trueCount() {
708             return (int) VectorSupport.maskReductionCoerced(VECTOR_OP_MASK_TRUECOUNT, Int64Mask.class, int.class, VLENGTH, this,
709                                                       (m) -> trueCountHelper(m.getBits()));
710         }
711 
712         @Override
713         @ForceInline
714         public int firstTrue() {
715             return (int) VectorSupport.maskReductionCoerced(VECTOR_OP_MASK_FIRSTTRUE, Int64Mask.class, int.class, VLENGTH, this,
716                                                       (m) -> firstTrueHelper(m.getBits()));
717         }
718 
719         @Override
720         @ForceInline
721         public int lastTrue() {
722             return (int) VectorSupport.maskReductionCoerced(VECTOR_OP_MASK_LASTTRUE, Int64Mask.class, int.class, VLENGTH, this,
723                                                       (m) -> lastTrueHelper(m.getBits()));
724         }
725 
726         @Override
727         @ForceInline
728         public long toLong() {
729             if (length() > Long.SIZE) {
730                 throw new UnsupportedOperationException("too many lanes for one long");
731             }
732             return VectorSupport.maskReductionCoerced(VECTOR_OP_MASK_TOLONG, Int64Mask.class, int.class, VLENGTH, this,
733                                                       (m) -> toLongHelper(m.getBits()));
734         }
735 
736         // Reductions
737 
738         @Override
739         @ForceInline
740         public boolean anyTrue() {
741             return VectorSupport.test(BT_ne, Int64Mask.class, int.class, VLENGTH,
742                                          this, vspecies().maskAll(true),
743                                          (m, __) -> anyTrueHelper(((Int64Mask)m).getBits()));
744         }
745 
746         @Override
747         @ForceInline
748         public boolean allTrue() {
749             return VectorSupport.test(BT_overflow, Int64Mask.class, int.class, VLENGTH,
750                                          this, vspecies().maskAll(true),
751                                          (m, __) -> allTrueHelper(((Int64Mask)m).getBits()));
752         }
753 
754         @ForceInline
755         /*package-private*/
756         static Int64Mask maskAll(boolean bit) {
757             return VectorSupport.fromBitsCoerced(Int64Mask.class, int.class, VLENGTH,
758                                                  (bit ? -1 : 0), MODE_BROADCAST, null,
759                                                  (v, __) -> (v != 0 ? TRUE_MASK : FALSE_MASK));
760         }
761         private static final Int64Mask  TRUE_MASK = new Int64Mask(true);
762         private static final Int64Mask FALSE_MASK = new Int64Mask(false);
763 
764     }
765 
766     // Shuffle
767 
768     static final class Int64Shuffle extends AbstractShuffle<Integer> {
769         static final int VLENGTH = VSPECIES.laneCount();    // used by the JVM
770         static final Class<Integer> ETYPE = int.class; // used by the JVM
771 
772         Int64Shuffle(byte[] reorder) {
773             super(VLENGTH, reorder);
774         }
775 
776         public Int64Shuffle(int[] reorder) {
777             super(VLENGTH, reorder);
778         }
779 
780         public Int64Shuffle(int[] reorder, int i) {
781             super(VLENGTH, reorder, i);
782         }
783 
784         public Int64Shuffle(IntUnaryOperator fn) {
785             super(VLENGTH, fn);
786         }
787 
788         @Override
789         public IntSpecies vspecies() {
790             return VSPECIES;
791         }
792 
793         static {
794             // There must be enough bits in the shuffle lanes to encode
795             // VLENGTH valid indexes and VLENGTH exceptional ones.
796             assert(VLENGTH < Byte.MAX_VALUE);
797             assert(Byte.MIN_VALUE <= -VLENGTH);
798         }
799         static final Int64Shuffle IOTA = new Int64Shuffle(IDENTITY);
800 
801         @Override
802         @ForceInline
803         public Int64Vector toVector() {
804             return VectorSupport.shuffleToVector(VCLASS, ETYPE, Int64Shuffle.class, this, VLENGTH,
805                                                     (s) -> ((Int64Vector)(((AbstractShuffle<Integer>)(s)).toVectorTemplate())));
806         }
807 
808         @Override
809         @ForceInline
810         public <F> VectorShuffle<F> cast(VectorSpecies<F> s) {
811             AbstractSpecies<F> species = (AbstractSpecies<F>) s;
812             if (length() != species.laneCount())
813                 throw new IllegalArgumentException("VectorShuffle length and species length differ");
814             int[] shuffleArray = toArray();
815             return s.shuffleFromArray(shuffleArray, 0).check(s);
816         }
817 
818         @ForceInline
819         @Override
820         public Int64Shuffle rearrange(VectorShuffle<Integer> shuffle) {
821             Int64Shuffle s = (Int64Shuffle) shuffle;
822             byte[] reorder1 = reorder();
823             byte[] reorder2 = s.reorder();
824             byte[] r = new byte[reorder1.length];
825             for (int i = 0; i < reorder1.length; i++) {
826                 int ssi = reorder2[i];
827                 r[i] = reorder1[ssi];  // throws on exceptional index
828             }
829             return new Int64Shuffle(r);
830         }
831     }
832 
833     // ================================================
834 
835     // Specialized low-level memory operations.
836 
837     @ForceInline
838     @Override
839     final
840     IntVector fromArray0(int[] a, int offset) {
841         return super.fromArray0Template(a, offset);  // specialize
842     }
843 
844     @ForceInline
845     @Override
846     final
847     IntVector fromArray0(int[] a, int offset, VectorMask<Integer> m) {
848         return super.fromArray0Template(Int64Mask.class, a, offset, (Int64Mask) m);  // specialize
849     }
850 
851     @ForceInline
852     @Override
853     final
854     IntVector fromArray0(int[] a, int offset, int[] indexMap, int mapOffset, VectorMask<Integer> m) {
855         return super.fromArray0Template(Int64Mask.class, a, offset, indexMap, mapOffset, (Int64Mask) m);
856     }
857 
858 
859 
860     @ForceInline
861     @Override
862     final
863     IntVector fromByteArray0(byte[] a, int offset) {
864         return super.fromByteArray0Template(a, offset);  // specialize
865     }
866 
867     @ForceInline
868     @Override
869     final
870     IntVector fromByteArray0(byte[] a, int offset, VectorMask<Integer> m) {
871         return super.fromByteArray0Template(Int64Mask.class, a, offset, (Int64Mask) m);  // specialize
872     }
873 
874     @ForceInline
875     @Override
876     final
877     IntVector fromByteBuffer0(ByteBuffer bb, int offset) {
878         return super.fromByteBuffer0Template(bb, offset);  // specialize
879     }
880 
881     @ForceInline
882     @Override
883     final
884     IntVector fromByteBuffer0(ByteBuffer bb, int offset, VectorMask<Integer> m) {
885         return super.fromByteBuffer0Template(Int64Mask.class, bb, offset, (Int64Mask) m);  // specialize
886     }
887 
888     @ForceInline
889     @Override
890     final
891     void intoArray0(int[] a, int offset) {
892         super.intoArray0Template(a, offset);  // specialize
893     }
894 
895     @ForceInline
896     @Override
897     final
898     void intoArray0(int[] a, int offset, VectorMask<Integer> m) {
899         super.intoArray0Template(Int64Mask.class, a, offset, (Int64Mask) m);
900     }
901 
902     @ForceInline
903     @Override
904     final
905     void intoArray0(int[] a, int offset, int[] indexMap, int mapOffset, VectorMask<Integer> m) {
906         super.intoArray0Template(Int64Mask.class, a, offset, indexMap, mapOffset, (Int64Mask) m);
907     }
908 
909 
910     @ForceInline
911     @Override
912     final
913     void intoByteArray0(byte[] a, int offset) {
914         super.intoByteArray0Template(a, offset);  // specialize
915     }
916 
917     @ForceInline
918     @Override
919     final
920     void intoByteArray0(byte[] a, int offset, VectorMask<Integer> m) {
921         super.intoByteArray0Template(Int64Mask.class, a, offset, (Int64Mask) m);  // specialize
922     }
923 
924     @ForceInline
925     @Override
926     final
927     void intoByteBuffer0(ByteBuffer bb, int offset, VectorMask<Integer> m) {
928         super.intoByteBuffer0Template(Int64Mask.class, bb, offset, (Int64Mask) m);
929     }
930 
931 
932     // End of specialized low-level memory operations.
933 
934     // ================================================
935 
936 }