1 /*
  2  * Copyright (c) 2017, 2022, Oracle and/or its affiliates. All rights reserved.
  3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  4  *
  5  * This code is free software; you can redistribute it and/or modify it
  6  * under the terms of the GNU General Public License version 2 only, as
  7  * published by the Free Software Foundation.  Oracle designates this
  8  * particular file as subject to the "Classpath" exception as provided
  9  * by Oracle in the LICENSE file that accompanied this code.
 10  *
 11  * This code is distributed in the hope that it will be useful, but WITHOUT
 12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 14  * version 2 for more details (a copy is included in the LICENSE file that
 15  * accompanied this code).
 16  *
 17  * You should have received a copy of the GNU General Public License version
 18  * 2 along with this work; if not, write to the Free Software Foundation,
 19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 20  *
 21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 22  * or visit www.oracle.com if you need additional information or have any
 23  * questions.
 24  */
 25 package jdk.incubator.vector;
 26 
 27 import java.util.Arrays;
 28 import java.util.Objects;
 29 import java.util.function.IntUnaryOperator;
 30 
 31 import jdk.incubator.foreign.MemorySegment;
 32 import jdk.internal.vm.annotation.ForceInline;
 33 import jdk.internal.vm.vector.VectorSupport;
 34 
 35 import static jdk.internal.vm.vector.VectorSupport.*;
 36 
 37 import static jdk.incubator.vector.VectorOperators.*;
 38 
 39 // -- This file was mechanically generated: Do not edit! -- //
 40 
 41 @SuppressWarnings("cast")  // warning: redundant cast
 42 final class IntMaxVector extends IntVector {
 43     static final IntSpecies VSPECIES =
 44         (IntSpecies) IntVector.SPECIES_MAX;
 45 
 46     static final VectorShape VSHAPE =
 47         VSPECIES.vectorShape();
 48 
 49     static final Class<IntMaxVector> VCLASS = IntMaxVector.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     IntMaxVector(int[] v) {
 58         super(v);
 59     }
 60 
 61     // For compatibility as IntMaxVector::new,
 62     // stored into species.vectorFactory.
 63     IntMaxVector(Object v) {
 64         this((int[]) v);
 65     }
 66 
 67     static final IntMaxVector ZERO = new IntMaxVector(new int[VLENGTH]);
 68     static final IntMaxVector IOTA = new IntMaxVector(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 IntMaxVector broadcast(int e) {
125         return (IntMaxVector) super.broadcastTemplate(e);  // specialize
126     }
127 
128     @Override
129     @ForceInline
130     public final IntMaxVector broadcast(long e) {
131         return (IntMaxVector) super.broadcastTemplate(e);  // specialize
132     }
133 
134     @Override
135     @ForceInline
136     IntMaxMask maskFromArray(boolean[] bits) {
137         return new IntMaxMask(bits);
138     }
139 
140     @Override
141     @ForceInline
142     IntMaxShuffle iotaShuffle() { return IntMaxShuffle.IOTA; }
143 
144     @ForceInline
145     IntMaxShuffle iotaShuffle(int start, int step, boolean wrap) {
146       if (wrap) {
147         return (IntMaxShuffle)VectorSupport.shuffleIota(ETYPE, IntMaxShuffle.class, VSPECIES, VLENGTH, start, step, 1,
148                 (l, lstart, lstep, s) -> s.shuffleFromOp(i -> (VectorIntrinsics.wrapToRange(i*lstep + lstart, l))));
149       } else {
150         return (IntMaxShuffle)VectorSupport.shuffleIota(ETYPE, IntMaxShuffle.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     IntMaxShuffle shuffleFromBytes(byte[] reorder) { return new IntMaxShuffle(reorder); }
158 
159     @Override
160     @ForceInline
161     IntMaxShuffle shuffleFromArray(int[] indexes, int i) { return new IntMaxShuffle(indexes, i); }
162 
163     @Override
164     @ForceInline
165     IntMaxShuffle shuffleFromOp(IntUnaryOperator fn) { return new IntMaxShuffle(fn); }
166 
167     // Make a vector of the same species but the given elements:
168     @ForceInline
169     final @Override
170     IntMaxVector vectorFactory(int[] vec) {
171         return new IntMaxVector(vec);
172     }
173 
174     @ForceInline
175     final @Override
176     ByteMaxVector asByteVectorRaw() {
177         return (ByteMaxVector) 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     IntMaxVector uOp(FUnOp f) {
191         return (IntMaxVector) super.uOpTemplate(f);  // specialize
192     }
193 
194     @ForceInline
195     final @Override
196     IntMaxVector uOp(VectorMask<Integer> m, FUnOp f) {
197         return (IntMaxVector)
198             super.uOpTemplate((IntMaxMask)m, f);  // specialize
199     }
200 
201     // Binary operator
202 
203     @ForceInline
204     final @Override
205     IntMaxVector bOp(Vector<Integer> v, FBinOp f) {
206         return (IntMaxVector) super.bOpTemplate((IntMaxVector)v, f);  // specialize
207     }
208 
209     @ForceInline
210     final @Override
211     IntMaxVector bOp(Vector<Integer> v,
212                      VectorMask<Integer> m, FBinOp f) {
213         return (IntMaxVector)
214             super.bOpTemplate((IntMaxVector)v, (IntMaxMask)m,
215                               f);  // specialize
216     }
217 
218     // Ternary operator
219 
220     @ForceInline
221     final @Override
222     IntMaxVector tOp(Vector<Integer> v1, Vector<Integer> v2, FTriOp f) {
223         return (IntMaxVector)
224             super.tOpTemplate((IntMaxVector)v1, (IntMaxVector)v2,
225                               f);  // specialize
226     }
227 
228     @ForceInline
229     final @Override
230     IntMaxVector tOp(Vector<Integer> v1, Vector<Integer> v2,
231                      VectorMask<Integer> m, FTriOp f) {
232         return (IntMaxVector)
233             super.tOpTemplate((IntMaxVector)v1, (IntMaxVector)v2,
234                               (IntMaxMask)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 IntMaxVector lanewise(Unary op) {
273         return (IntMaxVector) super.lanewiseTemplate(op);  // specialize
274     }
275 
276     @Override
277     @ForceInline
278     public IntMaxVector lanewise(Unary op, VectorMask<Integer> m) {
279         return (IntMaxVector) super.lanewiseTemplate(op, IntMaxMask.class, (IntMaxMask) m);  // specialize
280     }
281 
282     @Override
283     @ForceInline
284     public IntMaxVector lanewise(Binary op, Vector<Integer> v) {
285         return (IntMaxVector) super.lanewiseTemplate(op, v);  // specialize
286     }
287 
288     @Override
289     @ForceInline
290     public IntMaxVector lanewise(Binary op, Vector<Integer> v, VectorMask<Integer> m) {
291         return (IntMaxVector) super.lanewiseTemplate(op, IntMaxMask.class, v, (IntMaxMask) m);  // specialize
292     }
293 
294     /*package-private*/
295     @Override
296     @ForceInline IntMaxVector
297     lanewiseShift(VectorOperators.Binary op, int e) {
298         return (IntMaxVector) super.lanewiseShiftTemplate(op, e);  // specialize
299     }
300 
301     /*package-private*/
302     @Override
303     @ForceInline IntMaxVector
304     lanewiseShift(VectorOperators.Binary op, int e, VectorMask<Integer> m) {
305         return (IntMaxVector) super.lanewiseShiftTemplate(op, IntMaxMask.class, e, (IntMaxMask) m);  // specialize
306     }
307 
308     /*package-private*/
309     @Override
310     @ForceInline
311     public final
312     IntMaxVector
313     lanewise(Ternary op, Vector<Integer> v1, Vector<Integer> v2) {
314         return (IntMaxVector) super.lanewiseTemplate(op, v1, v2);  // specialize
315     }
316 
317     @Override
318     @ForceInline
319     public final
320     IntMaxVector
321     lanewise(Ternary op, Vector<Integer> v1, Vector<Integer> v2, VectorMask<Integer> m) {
322         return (IntMaxVector) super.lanewiseTemplate(op, IntMaxMask.class, v1, v2, (IntMaxMask) m);  // specialize
323     }
324 
325     @Override
326     @ForceInline
327     public final
328     IntMaxVector addIndex(int scale) {
329         return (IntMaxVector) 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, IntMaxMask.class, (IntMaxMask) 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, IntMaxMask.class, (IntMaxMask) m);  // specialized
358     }
359 
360     @ForceInline
361     public VectorShuffle<Integer> toShuffle() {
362         return super.toShuffleTemplate(IntMaxShuffle.class); // specialize
363     }
364 
365     // Specialized unary testing
366 
367     @Override
368     @ForceInline
369     public final IntMaxMask test(Test op) {
370         return super.testTemplate(IntMaxMask.class, op);  // specialize
371     }
372 
373     @Override
374     @ForceInline
375     public final IntMaxMask test(Test op, VectorMask<Integer> m) {
376         return super.testTemplate(IntMaxMask.class, op, (IntMaxMask) m);  // specialize
377     }
378 
379     // Specialized comparisons
380 
381     @Override
382     @ForceInline
383     public final IntMaxMask compare(Comparison op, Vector<Integer> v) {
384         return super.compareTemplate(IntMaxMask.class, op, v);  // specialize
385     }
386 
387     @Override
388     @ForceInline
389     public final IntMaxMask compare(Comparison op, int s) {
390         return super.compareTemplate(IntMaxMask.class, op, s);  // specialize
391     }
392 
393     @Override
394     @ForceInline
395     public final IntMaxMask compare(Comparison op, long s) {
396         return super.compareTemplate(IntMaxMask.class, op, s);  // specialize
397     }
398 
399     @Override
400     @ForceInline
401     public final IntMaxMask compare(Comparison op, Vector<Integer> v, VectorMask<Integer> m) {
402         return super.compareTemplate(IntMaxMask.class, op, v, (IntMaxMask) m);
403     }
404 
405 
406     @Override
407     @ForceInline
408     public IntMaxVector blend(Vector<Integer> v, VectorMask<Integer> m) {
409         return (IntMaxVector)
410             super.blendTemplate(IntMaxMask.class,
411                                 (IntMaxVector) v,
412                                 (IntMaxMask) m);  // specialize
413     }
414 
415     @Override
416     @ForceInline
417     public IntMaxVector slice(int origin, Vector<Integer> v) {
418         return (IntMaxVector) super.sliceTemplate(origin, v);  // specialize
419     }
420 
421     @Override
422     @ForceInline
423     public IntMaxVector slice(int origin) {
424         return (IntMaxVector) super.sliceTemplate(origin);  // specialize
425     }
426 
427     @Override
428     @ForceInline
429     public IntMaxVector unslice(int origin, Vector<Integer> w, int part) {
430         return (IntMaxVector) super.unsliceTemplate(origin, w, part);  // specialize
431     }
432 
433     @Override
434     @ForceInline
435     public IntMaxVector unslice(int origin, Vector<Integer> w, int part, VectorMask<Integer> m) {
436         return (IntMaxVector)
437             super.unsliceTemplate(IntMaxMask.class,
438                                   origin, w, part,
439                                   (IntMaxMask) m);  // specialize
440     }
441 
442     @Override
443     @ForceInline
444     public IntMaxVector unslice(int origin) {
445         return (IntMaxVector) super.unsliceTemplate(origin);  // specialize
446     }
447 
448     @Override
449     @ForceInline
450     public IntMaxVector rearrange(VectorShuffle<Integer> s) {
451         return (IntMaxVector)
452             super.rearrangeTemplate(IntMaxShuffle.class,
453                                     (IntMaxShuffle) s);  // specialize
454     }
455 
456     @Override
457     @ForceInline
458     public IntMaxVector rearrange(VectorShuffle<Integer> shuffle,
459                                   VectorMask<Integer> m) {
460         return (IntMaxVector)
461             super.rearrangeTemplate(IntMaxShuffle.class,
462                                     IntMaxMask.class,
463                                     (IntMaxShuffle) shuffle,
464                                     (IntMaxMask) m);  // specialize
465     }
466 
467     @Override
468     @ForceInline
469     public IntMaxVector rearrange(VectorShuffle<Integer> s,
470                                   Vector<Integer> v) {
471         return (IntMaxVector)
472             super.rearrangeTemplate(IntMaxShuffle.class,
473                                     (IntMaxShuffle) s,
474                                     (IntMaxVector) v);  // specialize
475     }
476 
477     @Override
478     @ForceInline
479     public IntMaxVector compress(VectorMask<Integer> m) {
480         return (IntMaxVector)
481             super.compressTemplate(IntMaxMask.class,
482                                    (IntMaxMask) m);  // specialize
483     }
484 
485     @Override
486     @ForceInline
487     public IntMaxVector expand(VectorMask<Integer> m) {
488         return (IntMaxVector)
489             super.expandTemplate(IntMaxMask.class,
490                                    (IntMaxMask) m);  // specialize
491     }
492 
493     @Override
494     @ForceInline
495     public IntMaxVector selectFrom(Vector<Integer> v) {
496         return (IntMaxVector)
497             super.selectFromTemplate((IntMaxVector) v);  // specialize
498     }
499 
500     @Override
501     @ForceInline
502     public IntMaxVector selectFrom(Vector<Integer> v,
503                                    VectorMask<Integer> m) {
504         return (IntMaxVector)
505             super.selectFromTemplate((IntMaxVector) v,
506                                      (IntMaxMask) m);  // specialize
507     }
508 
509 
510     @ForceInline
511     @Override
512     public int lane(int i) {
513         if (i < 0 || i >= VLENGTH) {
514             throw new IllegalArgumentException("Index " + i + " must be zero or positive, and less than " + VLENGTH);
515         }
516         return laneHelper(i);
517     }
518 
519     public int laneHelper(int i) {
520         return (int) VectorSupport.extract(
521                                 VCLASS, ETYPE, VLENGTH,
522                                 this, i,
523                                 (vec, ix) -> {
524                                     int[] vecarr = vec.vec();
525                                     return (long)vecarr[ix];
526                                 });
527     }
528 
529     @ForceInline
530     @Override
531     public IntMaxVector withLane(int i, int e) {
532         if (i < 0 || i >= VLENGTH) {
533             throw new IllegalArgumentException("Index " + i + " must be zero or positive, and less than " + VLENGTH);
534         }
535         return withLaneHelper(i, e);
536     }
537 
538     public IntMaxVector 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 IntMaxMask 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         IntMaxMask(boolean[] bits) {
556             this(bits, 0);
557         }
558 
559         IntMaxMask(boolean[] bits, int offset) {
560             super(prepare(bits, offset));
561         }
562 
563         IntMaxMask(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         IntMaxMask 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 IntMaxMask(res);
603         }
604 
605         @Override
606         IntMaxMask bOp(VectorMask<Integer> m, MBinOp f) {
607             boolean[] res = new boolean[vspecies().laneCount()];
608             boolean[] bits = getBits();
609             boolean[] mbits = ((IntMaxMask)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 IntMaxMask(res);
614         }
615 
616         @ForceInline
617         @Override
618         public final
619         IntMaxVector toVector() {
620             return (IntMaxVector) 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 IntMaxMask eq(VectorMask<Integer> mask) {
653             Objects.requireNonNull(mask);
654             IntMaxMask m = (IntMaxMask)mask;
655             return xor(m.not());
656         }
657 
658         // Unary operations
659 
660         @Override
661         @ForceInline
662         public IntMaxMask not() {
663             return xor(maskAll(true));
664         }
665 
666         @Override
667         @ForceInline
668         public IntMaxMask compress() {
669             return (IntMaxMask)VectorSupport.comExpOp(VectorSupport.VECTOR_OP_MASK_COMPRESS,
670                 IntMaxVector.class, IntMaxMask.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 IntMaxMask and(VectorMask<Integer> mask) {
680             Objects.requireNonNull(mask);
681             IntMaxMask m = (IntMaxMask)mask;
682             return VectorSupport.binaryOp(VECTOR_OP_AND, IntMaxMask.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 IntMaxMask or(VectorMask<Integer> mask) {
690             Objects.requireNonNull(mask);
691             IntMaxMask m = (IntMaxMask)mask;
692             return VectorSupport.binaryOp(VECTOR_OP_OR, IntMaxMask.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         IntMaxMask xor(VectorMask<Integer> mask) {
700             Objects.requireNonNull(mask);
701             IntMaxMask m = (IntMaxMask)mask;
702             return VectorSupport.binaryOp(VECTOR_OP_XOR, IntMaxMask.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, IntMaxMask.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, IntMaxMask.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, IntMaxMask.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, IntMaxMask.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, IntMaxMask.class, int.class, VLENGTH,
746                                          this, vspecies().maskAll(true),
747                                          (m, __) -> anyTrueHelper(((IntMaxMask)m).getBits()));
748         }
749 
750         @Override
751         @ForceInline
752         public boolean allTrue() {
753             return VectorSupport.test(BT_overflow, IntMaxMask.class, int.class, VLENGTH,
754                                          this, vspecies().maskAll(true),
755                                          (m, __) -> allTrueHelper(((IntMaxMask)m).getBits()));
756         }
757 
758         @ForceInline
759         /*package-private*/
760         static IntMaxMask maskAll(boolean bit) {
761             return VectorSupport.fromBitsCoerced(IntMaxMask.class, int.class, VLENGTH,
762                                                  (bit ? -1 : 0), MODE_BROADCAST, null,
763                                                  (v, __) -> (v != 0 ? TRUE_MASK : FALSE_MASK));
764         }
765         private static final IntMaxMask  TRUE_MASK = new IntMaxMask(true);
766         private static final IntMaxMask FALSE_MASK = new IntMaxMask(false);
767 
768 
769         static boolean[] maskLowerHalf() {
770             boolean[] a = new boolean[VLENGTH];
771             int len = a.length >> 1;
772             for (int i = 0; i < len; i++) {
773                 a[i] = true;
774             }
775             return a;
776         }
777 
778         static final IntMaxMask LOWER_HALF_TRUE_MASK = new IntMaxMask(maskLowerHalf());
779     }
780 
781     // Shuffle
782 
783     static final class IntMaxShuffle extends AbstractShuffle<Integer> {
784         static final int VLENGTH = VSPECIES.laneCount();    // used by the JVM
785         static final Class<Integer> ETYPE = int.class; // used by the JVM
786 
787         IntMaxShuffle(byte[] reorder) {
788             super(VLENGTH, reorder);
789         }
790 
791         public IntMaxShuffle(int[] reorder) {
792             super(VLENGTH, reorder);
793         }
794 
795         public IntMaxShuffle(int[] reorder, int i) {
796             super(VLENGTH, reorder, i);
797         }
798 
799         public IntMaxShuffle(IntUnaryOperator fn) {
800             super(VLENGTH, fn);
801         }
802 
803         @Override
804         public IntSpecies vspecies() {
805             return VSPECIES;
806         }
807 
808         static {
809             // There must be enough bits in the shuffle lanes to encode
810             // VLENGTH valid indexes and VLENGTH exceptional ones.
811             assert(VLENGTH < Byte.MAX_VALUE);
812             assert(Byte.MIN_VALUE <= -VLENGTH);
813         }
814         static final IntMaxShuffle IOTA = new IntMaxShuffle(IDENTITY);
815 
816         @Override
817         @ForceInline
818         public IntMaxVector toVector() {
819             return VectorSupport.shuffleToVector(VCLASS, ETYPE, IntMaxShuffle.class, this, VLENGTH,
820                                                     (s) -> ((IntMaxVector)(((AbstractShuffle<Integer>)(s)).toVectorTemplate())));
821         }
822 
823         @Override
824         @ForceInline
825         public <F> VectorShuffle<F> cast(VectorSpecies<F> s) {
826             AbstractSpecies<F> species = (AbstractSpecies<F>) s;
827             if (length() != species.laneCount())
828                 throw new IllegalArgumentException("VectorShuffle length and species length differ");
829             int[] shuffleArray = toArray();
830             return s.shuffleFromArray(shuffleArray, 0).check(s);
831         }
832 
833         @ForceInline
834         @Override
835         public IntMaxShuffle rearrange(VectorShuffle<Integer> shuffle) {
836             IntMaxShuffle s = (IntMaxShuffle) shuffle;
837             byte[] reorder1 = reorder();
838             byte[] reorder2 = s.reorder();
839             byte[] r = new byte[reorder1.length];
840             for (int i = 0; i < reorder1.length; i++) {
841                 int ssi = reorder2[i];
842                 r[i] = reorder1[ssi];  // throws on exceptional index
843             }
844             return new IntMaxShuffle(r);
845         }
846     }
847 
848     // ================================================
849 
850     // Specialized low-level memory operations.
851 
852     @ForceInline
853     @Override
854     final
855     IntVector fromArray0(int[] a, int offset) {
856         return super.fromArray0Template(a, offset);  // specialize
857     }
858 
859     @ForceInline
860     @Override
861     final
862     IntVector fromArray0(int[] a, int offset, VectorMask<Integer> m) {
863         return super.fromArray0Template(IntMaxMask.class, a, offset, (IntMaxMask) m);  // specialize
864     }
865 
866     @ForceInline
867     @Override
868     final
869     IntVector fromArray0(int[] a, int offset, int[] indexMap, int mapOffset, VectorMask<Integer> m) {
870         return super.fromArray0Template(IntMaxMask.class, a, offset, indexMap, mapOffset, (IntMaxMask) m);
871     }
872 
873 
874 
875     @ForceInline
876     @Override
877     final
878     IntVector fromMemorySegment0(MemorySegment ms, long offset) {
879         return super.fromMemorySegment0Template(ms, offset);  // specialize
880     }
881 
882     @ForceInline
883     @Override
884     final
885     IntVector fromMemorySegment0(MemorySegment ms, long offset, VectorMask<Integer> m) {
886         return super.fromMemorySegment0Template(IntMaxMask.class, ms, offset, (IntMaxMask) m);  // specialize
887     }
888 
889     @ForceInline
890     @Override
891     final
892     void intoArray0(int[] a, int offset) {
893         super.intoArray0Template(a, offset);  // specialize
894     }
895 
896     @ForceInline
897     @Override
898     final
899     void intoArray0(int[] a, int offset, VectorMask<Integer> m) {
900         super.intoArray0Template(IntMaxMask.class, a, offset, (IntMaxMask) m);
901     }
902 
903     @ForceInline
904     @Override
905     final
906     void intoArray0(int[] a, int offset, int[] indexMap, int mapOffset, VectorMask<Integer> m) {
907         super.intoArray0Template(IntMaxMask.class, a, offset, indexMap, mapOffset, (IntMaxMask) m);
908     }
909 
910 
911     @ForceInline
912     @Override
913     final
914     void intoMemorySegment0(MemorySegment ms, long offset, VectorMask<Integer> m) {
915         super.intoMemorySegment0Template(IntMaxMask.class, ms, offset, (IntMaxMask) m);
916     }
917 
918 
919     // End of specialized low-level memory operations.
920 
921     // ================================================
922 
923 }