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 Int128Vector extends IntVector {
 43     static final IntSpecies VSPECIES =
 44         (IntSpecies) IntVector.SPECIES_128;
 45 
 46     static final VectorShape VSHAPE =
 47         VSPECIES.vectorShape();
 48 
 49     static final Class<Int128Vector> VCLASS = Int128Vector.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     Int128Vector(int[] v) {
 58         super(v);
 59     }
 60 
 61     // For compatibility as Int128Vector::new,
 62     // stored into species.vectorFactory.
 63     Int128Vector(Object v) {
 64         this((int[]) v);
 65     }
 66 
 67     static final Int128Vector ZERO = new Int128Vector(new int[VLENGTH]);
 68     static final Int128Vector IOTA = new Int128Vector(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 Int128Vector broadcast(int e) {
125         return (Int128Vector) super.broadcastTemplate(e);  // specialize
126     }
127 
128     @Override
129     @ForceInline
130     public final Int128Vector broadcast(long e) {
131         return (Int128Vector) super.broadcastTemplate(e);  // specialize
132     }
133 
134     @Override
135     @ForceInline
136     Int128Mask maskFromArray(boolean[] bits) {
137         return new Int128Mask(bits);
138     }
139 
140     @Override
141     @ForceInline
142     Int128Shuffle iotaShuffle() { return Int128Shuffle.IOTA; }
143 
144     @ForceInline
145     Int128Shuffle iotaShuffle(int start, int step, boolean wrap) {
146       if (wrap) {
147         return (Int128Shuffle)VectorSupport.shuffleIota(ETYPE, Int128Shuffle.class, VSPECIES, VLENGTH, start, step, 1,
148                 (l, lstart, lstep, s) -> s.shuffleFromOp(i -> (VectorIntrinsics.wrapToRange(i*lstep + lstart, l))));
149       } else {
150         return (Int128Shuffle)VectorSupport.shuffleIota(ETYPE, Int128Shuffle.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     Int128Shuffle shuffleFromBytes(byte[] reorder) { return new Int128Shuffle(reorder); }
158 
159     @Override
160     @ForceInline
161     Int128Shuffle shuffleFromArray(int[] indexes, int i) { return new Int128Shuffle(indexes, i); }
162 
163     @Override
164     @ForceInline
165     Int128Shuffle shuffleFromOp(IntUnaryOperator fn) { return new Int128Shuffle(fn); }
166 
167     // Make a vector of the same species but the given elements:
168     @ForceInline
169     final @Override
170     Int128Vector vectorFactory(int[] vec) {
171         return new Int128Vector(vec);
172     }
173 
174     @ForceInline
175     final @Override
176     Byte128Vector asByteVectorRaw() {
177         return (Byte128Vector) 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     Int128Vector uOp(FUnOp f) {
191         return (Int128Vector) super.uOpTemplate(f);  // specialize
192     }
193 
194     @ForceInline
195     final @Override
196     Int128Vector uOp(VectorMask<Integer> m, FUnOp f) {
197         return (Int128Vector)
198             super.uOpTemplate((Int128Mask)m, f);  // specialize
199     }
200 
201     // Binary operator
202 
203     @ForceInline
204     final @Override
205     Int128Vector bOp(Vector<Integer> v, FBinOp f) {
206         return (Int128Vector) super.bOpTemplate((Int128Vector)v, f);  // specialize
207     }
208 
209     @ForceInline
210     final @Override
211     Int128Vector bOp(Vector<Integer> v,
212                      VectorMask<Integer> m, FBinOp f) {
213         return (Int128Vector)
214             super.bOpTemplate((Int128Vector)v, (Int128Mask)m,
215                               f);  // specialize
216     }
217 
218     // Ternary operator
219 
220     @ForceInline
221     final @Override
222     Int128Vector tOp(Vector<Integer> v1, Vector<Integer> v2, FTriOp f) {
223         return (Int128Vector)
224             super.tOpTemplate((Int128Vector)v1, (Int128Vector)v2,
225                               f);  // specialize
226     }
227 
228     @ForceInline
229     final @Override
230     Int128Vector tOp(Vector<Integer> v1, Vector<Integer> v2,
231                      VectorMask<Integer> m, FTriOp f) {
232         return (Int128Vector)
233             super.tOpTemplate((Int128Vector)v1, (Int128Vector)v2,
234                               (Int128Mask)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 Int128Vector lanewise(Unary op) {
273         return (Int128Vector) super.lanewiseTemplate(op);  // specialize
274     }
275 
276     @Override
277     @ForceInline
278     public Int128Vector lanewise(Unary op, VectorMask<Integer> m) {
279         return (Int128Vector) super.lanewiseTemplate(op, Int128Mask.class, (Int128Mask) m);  // specialize
280     }
281 
282     @Override
283     @ForceInline
284     public Int128Vector lanewise(Binary op, Vector<Integer> v) {
285         return (Int128Vector) super.lanewiseTemplate(op, v);  // specialize
286     }
287 
288     @Override
289     @ForceInline
290     public Int128Vector lanewise(Binary op, Vector<Integer> v, VectorMask<Integer> m) {
291         return (Int128Vector) super.lanewiseTemplate(op, Int128Mask.class, v, (Int128Mask) m);  // specialize
292     }
293 
294     /*package-private*/
295     @Override
296     @ForceInline Int128Vector
297     lanewiseShift(VectorOperators.Binary op, int e) {
298         return (Int128Vector) super.lanewiseShiftTemplate(op, e);  // specialize
299     }
300 
301     /*package-private*/
302     @Override
303     @ForceInline Int128Vector
304     lanewiseShift(VectorOperators.Binary op, int e, VectorMask<Integer> m) {
305         return (Int128Vector) super.lanewiseShiftTemplate(op, Int128Mask.class, e, (Int128Mask) m);  // specialize
306     }
307 
308     /*package-private*/
309     @Override
310     @ForceInline
311     public final
312     Int128Vector
313     lanewise(Ternary op, Vector<Integer> v1, Vector<Integer> v2) {
314         return (Int128Vector) super.lanewiseTemplate(op, v1, v2);  // specialize
315     }
316 
317     @Override
318     @ForceInline
319     public final
320     Int128Vector
321     lanewise(Ternary op, Vector<Integer> v1, Vector<Integer> v2, VectorMask<Integer> m) {
322         return (Int128Vector) super.lanewiseTemplate(op, Int128Mask.class, v1, v2, (Int128Mask) m);  // specialize
323     }
324 
325     @Override
326     @ForceInline
327     public final
328     Int128Vector addIndex(int scale) {
329         return (Int128Vector) 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, Int128Mask.class, (Int128Mask) 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, Int128Mask.class, (Int128Mask) m);  // specialized
358     }
359 
360     @ForceInline
361     public VectorShuffle<Integer> toShuffle() {
362         return super.toShuffleTemplate(Int128Shuffle.class); // specialize
363     }
364 
365     // Specialized unary testing
366 
367     @Override
368     @ForceInline
369     public final Int128Mask test(Test op) {
370         return super.testTemplate(Int128Mask.class, op);  // specialize
371     }
372 
373     // Specialized comparisons
374 
375     @Override
376     @ForceInline
377     public final Int128Mask compare(Comparison op, Vector<Integer> v) {
378         return super.compareTemplate(Int128Mask.class, op, v);  // specialize
379     }
380 
381     @Override
382     @ForceInline
383     public final Int128Mask compare(Comparison op, int s) {
384         return super.compareTemplate(Int128Mask.class, op, s);  // specialize
385     }
386 
387     @Override
388     @ForceInline
389     public final Int128Mask compare(Comparison op, long s) {
390         return super.compareTemplate(Int128Mask.class, op, s);  // specialize
391     }
392 
393     @Override
394     @ForceInline
395     public final Int128Mask compare(Comparison op, Vector<Integer> v, VectorMask<Integer> m) {
396         return super.compareTemplate(Int128Mask.class, op, v, (Int128Mask) m);
397     }
398 
399 
400     @Override
401     @ForceInline
402     public Int128Vector blend(Vector<Integer> v, VectorMask<Integer> m) {
403         return (Int128Vector)
404             super.blendTemplate(Int128Mask.class,
405                                 (Int128Vector) v,
406                                 (Int128Mask) m);  // specialize
407     }
408 
409     @Override
410     @ForceInline
411     public Int128Vector slice(int origin, Vector<Integer> v) {
412         return (Int128Vector) super.sliceTemplate(origin, v);  // specialize
413     }
414 
415     @Override
416     @ForceInline
417     public Int128Vector slice(int origin) {
418         return (Int128Vector) super.sliceTemplate(origin);  // specialize
419     }
420 
421     @Override
422     @ForceInline
423     public Int128Vector unslice(int origin, Vector<Integer> w, int part) {
424         return (Int128Vector) super.unsliceTemplate(origin, w, part);  // specialize
425     }
426 
427     @Override
428     @ForceInline
429     public Int128Vector unslice(int origin, Vector<Integer> w, int part, VectorMask<Integer> m) {
430         return (Int128Vector)
431             super.unsliceTemplate(Int128Mask.class,
432                                   origin, w, part,
433                                   (Int128Mask) m);  // specialize
434     }
435 
436     @Override
437     @ForceInline
438     public Int128Vector unslice(int origin) {
439         return (Int128Vector) super.unsliceTemplate(origin);  // specialize
440     }
441 
442     @Override
443     @ForceInline
444     public Int128Vector rearrange(VectorShuffle<Integer> s) {
445         return (Int128Vector)
446             super.rearrangeTemplate(Int128Shuffle.class,
447                                     (Int128Shuffle) s);  // specialize
448     }
449 
450     @Override
451     @ForceInline
452     public Int128Vector rearrange(VectorShuffle<Integer> shuffle,
453                                   VectorMask<Integer> m) {
454         return (Int128Vector)
455             super.rearrangeTemplate(Int128Shuffle.class,
456                                     Int128Mask.class,
457                                     (Int128Shuffle) shuffle,
458                                     (Int128Mask) m);  // specialize
459     }
460 
461     @Override
462     @ForceInline
463     public Int128Vector rearrange(VectorShuffle<Integer> s,
464                                   Vector<Integer> v) {
465         return (Int128Vector)
466             super.rearrangeTemplate(Int128Shuffle.class,
467                                     (Int128Shuffle) s,
468                                     (Int128Vector) v);  // specialize
469     }
470 
471     @Override
472     @ForceInline
473     public Int128Vector compress(VectorMask<Integer> m) {
474         return (Int128Vector)
475             super.compressTemplate(Int128Mask.class,
476                                    (Int128Mask) m);  // specialize
477     }
478 
479     @Override
480     @ForceInline
481     public Int128Vector expand(VectorMask<Integer> m) {
482         return (Int128Vector)
483             super.expandTemplate(Int128Mask.class,
484                                    (Int128Mask) m);  // specialize
485     }
486 
487     @Override
488     @ForceInline
489     public Int128Vector selectFrom(Vector<Integer> v) {
490         return (Int128Vector)
491             super.selectFromTemplate((Int128Vector) v);  // specialize
492     }
493 
494     @Override
495     @ForceInline
496     public Int128Vector selectFrom(Vector<Integer> v,
497                                    VectorMask<Integer> m) {
498         return (Int128Vector)
499             super.selectFromTemplate((Int128Vector) v,
500                                      (Int128Mask) 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             case 2: return laneHelper(2);
511             case 3: return laneHelper(3);
512             default: throw new IllegalArgumentException("Index " + i + " must be zero or positive, and less than " + VLENGTH);
513         }
514     }
515 
516     public int laneHelper(int i) {
517         return (int) VectorSupport.extract(
518                                 VCLASS, ETYPE, VLENGTH,
519                                 this, i,
520                                 (vec, ix) -> {
521                                     int[] vecarr = vec.vec();
522                                     return (long)vecarr[ix];
523                                 });
524     }
525 
526     @ForceInline
527     @Override
528     public Int128Vector withLane(int i, int e) {
529         switch (i) {
530             case 0: return withLaneHelper(0, e);
531             case 1: return withLaneHelper(1, e);
532             case 2: return withLaneHelper(2, e);
533             case 3: return withLaneHelper(3, e);
534             default: throw new IllegalArgumentException("Index " + i + " must be zero or positive, and less than " + VLENGTH);
535         }
536     }
537 
538     public Int128Vector withLaneHelper(int i, int e) {
539         return VectorSupport.insert(
540                                 VCLASS, ETYPE, VLENGTH,
541                                 this, i, (long)e,
542                                 (v, ix, bits) -> {
543                                     int[] res = v.vec().clone();
544                                     res[ix] = (int)bits;
545                                     return v.vectorFactory(res);
546                                 });
547     }
548 
549     // Mask
550 
551     static final class Int128Mask extends AbstractMask<Integer> {
552         static final int VLENGTH = VSPECIES.laneCount();    // used by the JVM
553         static final Class<Integer> ETYPE = int.class; // used by the JVM
554 
555         Int128Mask(boolean[] bits) {
556             this(bits, 0);
557         }
558 
559         Int128Mask(boolean[] bits, int offset) {
560             super(prepare(bits, offset));
561         }
562 
563         Int128Mask(boolean val) {
564             super(prepare(val));
565         }
566 
567         private static boolean[] prepare(boolean[] bits, int offset) {
568             boolean[] newBits = new boolean[VSPECIES.laneCount()];
569             for (int i = 0; i < newBits.length; i++) {
570                 newBits[i] = bits[offset + i];
571             }
572             return newBits;
573         }
574 
575         private static boolean[] prepare(boolean val) {
576             boolean[] bits = new boolean[VSPECIES.laneCount()];
577             Arrays.fill(bits, val);
578             return bits;
579         }
580 
581         @ForceInline
582         final @Override
583         public IntSpecies vspecies() {
584             // ISSUE:  This should probably be a @Stable
585             // field inside AbstractMask, rather than
586             // a megamorphic method.
587             return VSPECIES;
588         }
589 
590         @ForceInline
591         boolean[] getBits() {
592             return (boolean[])getPayload();
593         }
594 
595         @Override
596         Int128Mask uOp(MUnOp f) {
597             boolean[] res = new boolean[vspecies().laneCount()];
598             boolean[] bits = getBits();
599             for (int i = 0; i < res.length; i++) {
600                 res[i] = f.apply(i, bits[i]);
601             }
602             return new Int128Mask(res);
603         }
604 
605         @Override
606         Int128Mask bOp(VectorMask<Integer> m, MBinOp f) {
607             boolean[] res = new boolean[vspecies().laneCount()];
608             boolean[] bits = getBits();
609             boolean[] mbits = ((Int128Mask)m).getBits();
610             for (int i = 0; i < res.length; i++) {
611                 res[i] = f.apply(i, bits[i], mbits[i]);
612             }
613             return new Int128Mask(res);
614         }
615 
616         @ForceInline
617         @Override
618         public final
619         Int128Vector toVector() {
620             return (Int128Vector) super.toVectorTemplate();  // specialize
621         }
622 
623         /**
624          * Helper function for lane-wise mask conversions.
625          * This function kicks in after intrinsic failure.
626          */
627         @ForceInline
628         private final <E>
629         VectorMask<E> defaultMaskCast(AbstractSpecies<E> dsp) {
630             if (length() != dsp.laneCount())
631                 throw new IllegalArgumentException("VectorMask length and species length differ");
632             boolean[] maskArray = toArray();
633             return  dsp.maskFactory(maskArray).check(dsp);
634         }
635 
636         @Override
637         @ForceInline
638         public <E> VectorMask<E> cast(VectorSpecies<E> dsp) {
639             AbstractSpecies<E> species = (AbstractSpecies<E>) dsp;
640             if (length() != species.laneCount())
641                 throw new IllegalArgumentException("VectorMask length and species length differ");
642 
643             return VectorSupport.convert(VectorSupport.VECTOR_OP_CAST,
644                 this.getClass(), ETYPE, VLENGTH,
645                 species.maskType(), species.elementType(), VLENGTH,
646                 this, species,
647                 (m, s) -> s.maskFactory(m.toArray()).check(s));
648         }
649 
650         @Override
651         @ForceInline
652         public Int128Mask eq(VectorMask<Integer> mask) {
653             Objects.requireNonNull(mask);
654             Int128Mask m = (Int128Mask)mask;
655             return xor(m.not());
656         }
657 
658         // Unary operations
659 
660         @Override
661         @ForceInline
662         public Int128Mask not() {
663             return xor(maskAll(true));
664         }
665 
666         @Override
667         @ForceInline
668         public Int128Mask compress() {
669             return (Int128Mask)VectorSupport.comExpOp(VectorSupport.VECTOR_OP_MASK_COMPRESS,
670                 Int128Vector.class, Int128Mask.class, ETYPE, VLENGTH, null, this,
671                 (v1, m1) -> VSPECIES.iota().compare(VectorOperators.LT, m1.trueCount()));
672         }
673 
674 
675         // Binary operations
676 
677         @Override
678         @ForceInline
679         public Int128Mask and(VectorMask<Integer> mask) {
680             Objects.requireNonNull(mask);
681             Int128Mask m = (Int128Mask)mask;
682             return VectorSupport.binaryOp(VECTOR_OP_AND, Int128Mask.class, null, int.class, VLENGTH,
683                                           this, m, null,
684                                           (m1, m2, vm) -> m1.bOp(m2, (i, a, b) -> a & b));
685         }
686 
687         @Override
688         @ForceInline
689         public Int128Mask or(VectorMask<Integer> mask) {
690             Objects.requireNonNull(mask);
691             Int128Mask m = (Int128Mask)mask;
692             return VectorSupport.binaryOp(VECTOR_OP_OR, Int128Mask.class, null, int.class, VLENGTH,
693                                           this, m, null,
694                                           (m1, m2, vm) -> m1.bOp(m2, (i, a, b) -> a | b));
695         }
696 
697         @ForceInline
698         /* package-private */
699         Int128Mask xor(VectorMask<Integer> mask) {
700             Objects.requireNonNull(mask);
701             Int128Mask m = (Int128Mask)mask;
702             return VectorSupport.binaryOp(VECTOR_OP_XOR, Int128Mask.class, null, int.class, VLENGTH,
703                                           this, m, null,
704                                           (m1, m2, vm) -> m1.bOp(m2, (i, a, b) -> a ^ b));
705         }
706 
707         // Mask Query operations
708 
709         @Override
710         @ForceInline
711         public int trueCount() {
712             return (int) VectorSupport.maskReductionCoerced(VECTOR_OP_MASK_TRUECOUNT, Int128Mask.class, int.class, VLENGTH, this,
713                                                       (m) -> trueCountHelper(m.getBits()));
714         }
715 
716         @Override
717         @ForceInline
718         public int firstTrue() {
719             return (int) VectorSupport.maskReductionCoerced(VECTOR_OP_MASK_FIRSTTRUE, Int128Mask.class, int.class, VLENGTH, this,
720                                                       (m) -> firstTrueHelper(m.getBits()));
721         }
722 
723         @Override
724         @ForceInline
725         public int lastTrue() {
726             return (int) VectorSupport.maskReductionCoerced(VECTOR_OP_MASK_LASTTRUE, Int128Mask.class, int.class, VLENGTH, this,
727                                                       (m) -> lastTrueHelper(m.getBits()));
728         }
729 
730         @Override
731         @ForceInline
732         public long toLong() {
733             if (length() > Long.SIZE) {
734                 throw new UnsupportedOperationException("too many lanes for one long");
735             }
736             return VectorSupport.maskReductionCoerced(VECTOR_OP_MASK_TOLONG, Int128Mask.class, int.class, VLENGTH, this,
737                                                       (m) -> toLongHelper(m.getBits()));
738         }
739 
740         // Reductions
741 
742         @Override
743         @ForceInline
744         public boolean anyTrue() {
745             return VectorSupport.test(BT_ne, Int128Mask.class, int.class, VLENGTH,
746                                          this, vspecies().maskAll(true),
747                                          (m, __) -> anyTrueHelper(((Int128Mask)m).getBits()));
748         }
749 
750         @Override
751         @ForceInline
752         public boolean allTrue() {
753             return VectorSupport.test(BT_overflow, Int128Mask.class, int.class, VLENGTH,
754                                          this, vspecies().maskAll(true),
755                                          (m, __) -> allTrueHelper(((Int128Mask)m).getBits()));
756         }
757 
758         @ForceInline
759         /*package-private*/
760         static Int128Mask maskAll(boolean bit) {
761             return VectorSupport.fromBitsCoerced(Int128Mask.class, int.class, VLENGTH,
762                                                  (bit ? -1 : 0), MODE_BROADCAST, null,
763                                                  (v, __) -> (v != 0 ? TRUE_MASK : FALSE_MASK));
764         }
765         private static final Int128Mask  TRUE_MASK = new Int128Mask(true);
766         private static final Int128Mask FALSE_MASK = new Int128Mask(false);
767 
768     }
769 
770     // Shuffle
771 
772     static final class Int128Shuffle extends AbstractShuffle<Integer> {
773         static final int VLENGTH = VSPECIES.laneCount();    // used by the JVM
774         static final Class<Integer> ETYPE = int.class; // used by the JVM
775 
776         Int128Shuffle(byte[] reorder) {
777             super(VLENGTH, reorder);
778         }
779 
780         public Int128Shuffle(int[] reorder) {
781             super(VLENGTH, reorder);
782         }
783 
784         public Int128Shuffle(int[] reorder, int i) {
785             super(VLENGTH, reorder, i);
786         }
787 
788         public Int128Shuffle(IntUnaryOperator fn) {
789             super(VLENGTH, fn);
790         }
791 
792         @Override
793         public IntSpecies vspecies() {
794             return VSPECIES;
795         }
796 
797         static {
798             // There must be enough bits in the shuffle lanes to encode
799             // VLENGTH valid indexes and VLENGTH exceptional ones.
800             assert(VLENGTH < Byte.MAX_VALUE);
801             assert(Byte.MIN_VALUE <= -VLENGTH);
802         }
803         static final Int128Shuffle IOTA = new Int128Shuffle(IDENTITY);
804 
805         @Override
806         @ForceInline
807         public Int128Vector toVector() {
808             return VectorSupport.shuffleToVector(VCLASS, ETYPE, Int128Shuffle.class, this, VLENGTH,
809                                                     (s) -> ((Int128Vector)(((AbstractShuffle<Integer>)(s)).toVectorTemplate())));
810         }
811 
812         @Override
813         @ForceInline
814         public <F> VectorShuffle<F> cast(VectorSpecies<F> s) {
815             AbstractSpecies<F> species = (AbstractSpecies<F>) s;
816             if (length() != species.laneCount())
817                 throw new IllegalArgumentException("VectorShuffle length and species length differ");
818             int[] shuffleArray = toArray();
819             return s.shuffleFromArray(shuffleArray, 0).check(s);
820         }
821 
822         @ForceInline
823         @Override
824         public Int128Shuffle rearrange(VectorShuffle<Integer> shuffle) {
825             Int128Shuffle s = (Int128Shuffle) shuffle;
826             byte[] reorder1 = reorder();
827             byte[] reorder2 = s.reorder();
828             byte[] r = new byte[reorder1.length];
829             for (int i = 0; i < reorder1.length; i++) {
830                 int ssi = reorder2[i];
831                 r[i] = reorder1[ssi];  // throws on exceptional index
832             }
833             return new Int128Shuffle(r);
834         }
835     }
836 
837     // ================================================
838 
839     // Specialized low-level memory operations.
840 
841     @ForceInline
842     @Override
843     final
844     IntVector fromArray0(int[] a, int offset) {
845         return super.fromArray0Template(a, offset);  // specialize
846     }
847 
848     @ForceInline
849     @Override
850     final
851     IntVector fromArray0(int[] a, int offset, VectorMask<Integer> m) {
852         return super.fromArray0Template(Int128Mask.class, a, offset, (Int128Mask) m);  // specialize
853     }
854 
855     @ForceInline
856     @Override
857     final
858     IntVector fromArray0(int[] a, int offset, int[] indexMap, int mapOffset, VectorMask<Integer> m) {
859         return super.fromArray0Template(Int128Mask.class, a, offset, indexMap, mapOffset, (Int128Mask) m);
860     }
861 
862 
863 
864     @ForceInline
865     @Override
866     final
867     IntVector fromByteArray0(byte[] a, int offset) {
868         return super.fromByteArray0Template(a, offset);  // specialize
869     }
870 
871     @ForceInline
872     @Override
873     final
874     IntVector fromByteArray0(byte[] a, int offset, VectorMask<Integer> m) {
875         return super.fromByteArray0Template(Int128Mask.class, a, offset, (Int128Mask) m);  // specialize
876     }
877 
878     @ForceInline
879     @Override
880     final
881     IntVector fromByteBuffer0(ByteBuffer bb, int offset) {
882         return super.fromByteBuffer0Template(bb, offset);  // specialize
883     }
884 
885     @ForceInline
886     @Override
887     final
888     IntVector fromByteBuffer0(ByteBuffer bb, int offset, VectorMask<Integer> m) {
889         return super.fromByteBuffer0Template(Int128Mask.class, bb, offset, (Int128Mask) m);  // specialize
890     }
891 
892     @ForceInline
893     @Override
894     final
895     void intoArray0(int[] a, int offset) {
896         super.intoArray0Template(a, offset);  // specialize
897     }
898 
899     @ForceInline
900     @Override
901     final
902     void intoArray0(int[] a, int offset, VectorMask<Integer> m) {
903         super.intoArray0Template(Int128Mask.class, a, offset, (Int128Mask) m);
904     }
905 
906     @ForceInline
907     @Override
908     final
909     void intoArray0(int[] a, int offset, int[] indexMap, int mapOffset, VectorMask<Integer> m) {
910         super.intoArray0Template(Int128Mask.class, a, offset, indexMap, mapOffset, (Int128Mask) m);
911     }
912 
913 
914     @ForceInline
915     @Override
916     final
917     void intoByteArray0(byte[] a, int offset) {
918         super.intoByteArray0Template(a, offset);  // specialize
919     }
920 
921     @ForceInline
922     @Override
923     final
924     void intoByteArray0(byte[] a, int offset, VectorMask<Integer> m) {
925         super.intoByteArray0Template(Int128Mask.class, a, offset, (Int128Mask) m);  // specialize
926     }
927 
928     @ForceInline
929     @Override
930     final
931     void intoByteBuffer0(ByteBuffer bb, int offset, VectorMask<Integer> m) {
932         super.intoByteBuffer0Template(Int128Mask.class, bb, offset, (Int128Mask) m);
933     }
934 
935 
936     // End of specialized low-level memory operations.
937 
938     // ================================================
939 
940 }