1 /*
  2  * Copyright (c) 2017, 2022, Oracle and/or its affiliates. All rights reserved.
  3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  4  *
  5  * This code is free software; you can redistribute it and/or modify it
  6  * under the terms of the GNU General Public License version 2 only, as
  7  * published by the Free Software Foundation.  Oracle designates this
  8  * particular file as subject to the "Classpath" exception as provided
  9  * by Oracle in the LICENSE file that accompanied this code.
 10  *
 11  * This code is distributed in the hope that it will be useful, but WITHOUT
 12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 14  * version 2 for more details (a copy is included in the LICENSE file that
 15  * accompanied this code).
 16  *
 17  * You should have received a copy of the GNU General Public License version
 18  * 2 along with this work; if not, write to the Free Software Foundation,
 19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 20  *
 21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 22  * or visit www.oracle.com if you need additional information or have any
 23  * questions.
 24  */
 25 package jdk.incubator.vector;
 26 
 27 import java.nio.ByteBuffer;
 28 import java.util.Arrays;
 29 import java.util.Objects;
 30 import java.util.function.IntUnaryOperator;
 31 
 32 import jdk.internal.vm.annotation.ForceInline;
 33 import jdk.internal.vm.vector.VectorSupport;
 34 
 35 import static jdk.internal.vm.vector.VectorSupport.*;
 36 
 37 import static jdk.incubator.vector.VectorOperators.*;
 38 
 39 // -- This file was mechanically generated: Do not edit! -- //
 40 
 41 @SuppressWarnings("cast")  // warning: redundant cast
 42 final class Byte64Vector extends ByteVector {
 43     static final ByteSpecies VSPECIES =
 44         (ByteSpecies) ByteVector.SPECIES_64;
 45 
 46     static final VectorShape VSHAPE =
 47         VSPECIES.vectorShape();
 48 
 49     static final Class<Byte64Vector> VCLASS = Byte64Vector.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<Byte> ETYPE = byte.class; // used by the JVM
 56 
 57     Byte64Vector(byte[] v) {
 58         super(v);
 59     }
 60 
 61     // For compatibility as Byte64Vector::new,
 62     // stored into species.vectorFactory.
 63     Byte64Vector(Object v) {
 64         this((byte[]) v);
 65     }
 66 
 67     static final Byte64Vector ZERO = new Byte64Vector(new byte[VLENGTH]);
 68     static final Byte64Vector IOTA = new Byte64Vector(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 ByteSpecies 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<Byte> elementType() { return byte.class; }
 92 
 93     @ForceInline
 94     @Override
 95     public final int elementSize() { return Byte.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     byte[] vec() {
117         return (byte[])getPayload();
118     }
119 
120     // Virtualized constructors
121 
122     @Override
123     @ForceInline
124     public final Byte64Vector broadcast(byte e) {
125         return (Byte64Vector) super.broadcastTemplate(e);  // specialize
126     }
127 
128     @Override
129     @ForceInline
130     public final Byte64Vector broadcast(long e) {
131         return (Byte64Vector) super.broadcastTemplate(e);  // specialize
132     }
133 
134     @Override
135     @ForceInline
136     Byte64Mask maskFromArray(boolean[] bits) {
137         return new Byte64Mask(bits);
138     }
139 
140     @Override
141     @ForceInline
142     Byte64Shuffle iotaShuffle() { return Byte64Shuffle.IOTA; }
143 
144     @ForceInline
145     Byte64Shuffle iotaShuffle(int start, int step, boolean wrap) {
146       if (wrap) {
147         return (Byte64Shuffle)VectorSupport.shuffleIota(ETYPE, Byte64Shuffle.class, VSPECIES, VLENGTH, start, step, 1,
148                 (l, lstart, lstep, s) -> s.shuffleFromOp(i -> (VectorIntrinsics.wrapToRange(i*lstep + lstart, l))));
149       } else {
150         return (Byte64Shuffle)VectorSupport.shuffleIota(ETYPE, Byte64Shuffle.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     Byte64Shuffle shuffleFromBytes(byte[] reorder) { return new Byte64Shuffle(reorder); }
158 
159     @Override
160     @ForceInline
161     Byte64Shuffle shuffleFromArray(int[] indexes, int i) { return new Byte64Shuffle(indexes, i); }
162 
163     @Override
164     @ForceInline
165     Byte64Shuffle shuffleFromOp(IntUnaryOperator fn) { return new Byte64Shuffle(fn); }
166 
167     // Make a vector of the same species but the given elements:
168     @ForceInline
169     final @Override
170     Byte64Vector vectorFactory(byte[] vec) {
171         return new Byte64Vector(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     Byte64Vector uOp(FUnOp f) {
191         return (Byte64Vector) super.uOpTemplate(f);  // specialize
192     }
193 
194     @ForceInline
195     final @Override
196     Byte64Vector uOp(VectorMask<Byte> m, FUnOp f) {
197         return (Byte64Vector)
198             super.uOpTemplate((Byte64Mask)m, f);  // specialize
199     }
200 
201     // Binary operator
202 
203     @ForceInline
204     final @Override
205     Byte64Vector bOp(Vector<Byte> v, FBinOp f) {
206         return (Byte64Vector) super.bOpTemplate((Byte64Vector)v, f);  // specialize
207     }
208 
209     @ForceInline
210     final @Override
211     Byte64Vector bOp(Vector<Byte> v,
212                      VectorMask<Byte> m, FBinOp f) {
213         return (Byte64Vector)
214             super.bOpTemplate((Byte64Vector)v, (Byte64Mask)m,
215                               f);  // specialize
216     }
217 
218     // Ternary operator
219 
220     @ForceInline
221     final @Override
222     Byte64Vector tOp(Vector<Byte> v1, Vector<Byte> v2, FTriOp f) {
223         return (Byte64Vector)
224             super.tOpTemplate((Byte64Vector)v1, (Byte64Vector)v2,
225                               f);  // specialize
226     }
227 
228     @ForceInline
229     final @Override
230     Byte64Vector tOp(Vector<Byte> v1, Vector<Byte> v2,
231                      VectorMask<Byte> m, FTriOp f) {
232         return (Byte64Vector)
233             super.tOpTemplate((Byte64Vector)v1, (Byte64Vector)v2,
234                               (Byte64Mask)m, f);  // specialize
235     }
236 
237     @ForceInline
238     final @Override
239     byte rOp(byte v, VectorMask<Byte> 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<Byte,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 Byte64Vector lanewise(Unary op) {
273         return (Byte64Vector) super.lanewiseTemplate(op);  // specialize
274     }
275 
276     @Override
277     @ForceInline
278     public Byte64Vector lanewise(Unary op, VectorMask<Byte> m) {
279         return (Byte64Vector) super.lanewiseTemplate(op, Byte64Mask.class, (Byte64Mask) m);  // specialize
280     }
281 
282     @Override
283     @ForceInline
284     public Byte64Vector lanewise(Binary op, Vector<Byte> v) {
285         return (Byte64Vector) super.lanewiseTemplate(op, v);  // specialize
286     }
287 
288     @Override
289     @ForceInline
290     public Byte64Vector lanewise(Binary op, Vector<Byte> v, VectorMask<Byte> m) {
291         return (Byte64Vector) super.lanewiseTemplate(op, Byte64Mask.class, v, (Byte64Mask) m);  // specialize
292     }
293 
294     /*package-private*/
295     @Override
296     @ForceInline Byte64Vector
297     lanewiseShift(VectorOperators.Binary op, int e) {
298         return (Byte64Vector) super.lanewiseShiftTemplate(op, e);  // specialize
299     }
300 
301     /*package-private*/
302     @Override
303     @ForceInline Byte64Vector
304     lanewiseShift(VectorOperators.Binary op, int e, VectorMask<Byte> m) {
305         return (Byte64Vector) super.lanewiseShiftTemplate(op, Byte64Mask.class, e, (Byte64Mask) m);  // specialize
306     }
307 
308     /*package-private*/
309     @Override
310     @ForceInline
311     public final
312     Byte64Vector
313     lanewise(Ternary op, Vector<Byte> v1, Vector<Byte> v2) {
314         return (Byte64Vector) super.lanewiseTemplate(op, v1, v2);  // specialize
315     }
316 
317     @Override
318     @ForceInline
319     public final
320     Byte64Vector
321     lanewise(Ternary op, Vector<Byte> v1, Vector<Byte> v2, VectorMask<Byte> m) {
322         return (Byte64Vector) super.lanewiseTemplate(op, Byte64Mask.class, v1, v2, (Byte64Mask) m);  // specialize
323     }
324 
325     @Override
326     @ForceInline
327     public final
328     Byte64Vector addIndex(int scale) {
329         return (Byte64Vector) super.addIndexTemplate(scale);  // specialize
330     }
331 
332     // Type specific horizontal reductions
333 
334     @Override
335     @ForceInline
336     public final byte reduceLanes(VectorOperators.Associative op) {
337         return super.reduceLanesTemplate(op);  // specialized
338     }
339 
340     @Override
341     @ForceInline
342     public final byte reduceLanes(VectorOperators.Associative op,
343                                     VectorMask<Byte> m) {
344         return super.reduceLanesTemplate(op, Byte64Mask.class, (Byte64Mask) 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<Byte> m) {
357         return (long) super.reduceLanesTemplate(op, Byte64Mask.class, (Byte64Mask) m);  // specialized
358     }
359 
360     @ForceInline
361     public VectorShuffle<Byte> toShuffle() {
362         return super.toShuffleTemplate(Byte64Shuffle.class); // specialize
363     }
364 
365     // Specialized unary testing
366 
367     @Override
368     @ForceInline
369     public final Byte64Mask test(Test op) {
370         return super.testTemplate(Byte64Mask.class, op);  // specialize
371     }
372 
373     @Override
374     @ForceInline
375     public final Byte64Mask test(Test op, VectorMask<Byte> m) {
376         return super.testTemplate(Byte64Mask.class, op, (Byte64Mask) m);  // specialize
377     }
378 
379     // Specialized comparisons
380 
381     @Override
382     @ForceInline
383     public final Byte64Mask compare(Comparison op, Vector<Byte> v) {
384         return super.compareTemplate(Byte64Mask.class, op, v);  // specialize
385     }
386 
387     @Override
388     @ForceInline
389     public final Byte64Mask compare(Comparison op, byte s) {
390         return super.compareTemplate(Byte64Mask.class, op, s);  // specialize
391     }
392 
393     @Override
394     @ForceInline
395     public final Byte64Mask compare(Comparison op, long s) {
396         return super.compareTemplate(Byte64Mask.class, op, s);  // specialize
397     }
398 
399     @Override
400     @ForceInline
401     public final Byte64Mask compare(Comparison op, Vector<Byte> v, VectorMask<Byte> m) {
402         return super.compareTemplate(Byte64Mask.class, op, v, (Byte64Mask) m);
403     }
404 
405 
406     @Override
407     @ForceInline
408     public Byte64Vector blend(Vector<Byte> v, VectorMask<Byte> m) {
409         return (Byte64Vector)
410             super.blendTemplate(Byte64Mask.class,
411                                 (Byte64Vector) v,
412                                 (Byte64Mask) m);  // specialize
413     }
414 
415     @Override
416     @ForceInline
417     public Byte64Vector slice(int origin, Vector<Byte> v) {
418         return (Byte64Vector) super.sliceTemplate(origin, v);  // specialize
419     }
420 
421     @Override
422     @ForceInline
423     public Byte64Vector slice(int origin) {
424         return (Byte64Vector) super.sliceTemplate(origin);  // specialize
425     }
426 
427     @Override
428     @ForceInline
429     public Byte64Vector unslice(int origin, Vector<Byte> w, int part) {
430         return (Byte64Vector) super.unsliceTemplate(origin, w, part);  // specialize
431     }
432 
433     @Override
434     @ForceInline
435     public Byte64Vector unslice(int origin, Vector<Byte> w, int part, VectorMask<Byte> m) {
436         return (Byte64Vector)
437             super.unsliceTemplate(Byte64Mask.class,
438                                   origin, w, part,
439                                   (Byte64Mask) m);  // specialize
440     }
441 
442     @Override
443     @ForceInline
444     public Byte64Vector unslice(int origin) {
445         return (Byte64Vector) super.unsliceTemplate(origin);  // specialize
446     }
447 
448     @Override
449     @ForceInline
450     public Byte64Vector rearrange(VectorShuffle<Byte> s) {
451         return (Byte64Vector)
452             super.rearrangeTemplate(Byte64Shuffle.class,
453                                     (Byte64Shuffle) s);  // specialize
454     }
455 
456     @Override
457     @ForceInline
458     public Byte64Vector rearrange(VectorShuffle<Byte> shuffle,
459                                   VectorMask<Byte> m) {
460         return (Byte64Vector)
461             super.rearrangeTemplate(Byte64Shuffle.class,
462                                     Byte64Mask.class,
463                                     (Byte64Shuffle) shuffle,
464                                     (Byte64Mask) m);  // specialize
465     }
466 
467     @Override
468     @ForceInline
469     public Byte64Vector rearrange(VectorShuffle<Byte> s,
470                                   Vector<Byte> v) {
471         return (Byte64Vector)
472             super.rearrangeTemplate(Byte64Shuffle.class,
473                                     (Byte64Shuffle) s,
474                                     (Byte64Vector) v);  // specialize
475     }
476 
477     @Override
478     @ForceInline
479     public Byte64Vector selectFrom(Vector<Byte> v) {
480         return (Byte64Vector)
481             super.selectFromTemplate((Byte64Vector) v);  // specialize
482     }
483 
484     @Override
485     @ForceInline
486     public Byte64Vector selectFrom(Vector<Byte> v,
487                                    VectorMask<Byte> m) {
488         return (Byte64Vector)
489             super.selectFromTemplate((Byte64Vector) v,
490                                      (Byte64Mask) m);  // specialize
491     }
492 
493 
494     @ForceInline
495     @Override
496     public byte lane(int i) {
497         switch(i) {
498             case 0: return laneHelper(0);
499             case 1: return laneHelper(1);
500             case 2: return laneHelper(2);
501             case 3: return laneHelper(3);
502             case 4: return laneHelper(4);
503             case 5: return laneHelper(5);
504             case 6: return laneHelper(6);
505             case 7: return laneHelper(7);
506             default: throw new IllegalArgumentException("Index " + i + " must be zero or positive, and less than " + VLENGTH);
507         }
508     }
509 
510     public byte laneHelper(int i) {
511         return (byte) VectorSupport.extract(
512                                 VCLASS, ETYPE, VLENGTH,
513                                 this, i,
514                                 (vec, ix) -> {
515                                     byte[] vecarr = vec.vec();
516                                     return (long)vecarr[ix];
517                                 });
518     }
519 
520     @ForceInline
521     @Override
522     public Byte64Vector withLane(int i, byte e) {
523         switch (i) {
524             case 0: return withLaneHelper(0, e);
525             case 1: return withLaneHelper(1, e);
526             case 2: return withLaneHelper(2, e);
527             case 3: return withLaneHelper(3, e);
528             case 4: return withLaneHelper(4, e);
529             case 5: return withLaneHelper(5, e);
530             case 6: return withLaneHelper(6, e);
531             case 7: return withLaneHelper(7, e);
532             default: throw new IllegalArgumentException("Index " + i + " must be zero or positive, and less than " + VLENGTH);
533         }
534     }
535 
536     public Byte64Vector withLaneHelper(int i, byte e) {
537         return VectorSupport.insert(
538                                 VCLASS, ETYPE, VLENGTH,
539                                 this, i, (long)e,
540                                 (v, ix, bits) -> {
541                                     byte[] res = v.vec().clone();
542                                     res[ix] = (byte)bits;
543                                     return v.vectorFactory(res);
544                                 });
545     }
546 
547     // Mask
548 
549     static final class Byte64Mask extends AbstractMask<Byte> {
550         static final int VLENGTH = VSPECIES.laneCount();    // used by the JVM
551         static final Class<Byte> ETYPE = byte.class; // used by the JVM
552 
553         Byte64Mask(boolean[] bits) {
554             this(bits, 0);
555         }
556 
557         Byte64Mask(boolean[] bits, int offset) {
558             super(prepare(bits, offset));
559         }
560 
561         Byte64Mask(boolean val) {
562             super(prepare(val));
563         }
564 
565         private static boolean[] prepare(boolean[] bits, int offset) {
566             boolean[] newBits = new boolean[VSPECIES.laneCount()];
567             for (int i = 0; i < newBits.length; i++) {
568                 newBits[i] = bits[offset + i];
569             }
570             return newBits;
571         }
572 
573         private static boolean[] prepare(boolean val) {
574             boolean[] bits = new boolean[VSPECIES.laneCount()];
575             Arrays.fill(bits, val);
576             return bits;
577         }
578 
579         @ForceInline
580         final @Override
581         public ByteSpecies vspecies() {
582             // ISSUE:  This should probably be a @Stable
583             // field inside AbstractMask, rather than
584             // a megamorphic method.
585             return VSPECIES;
586         }
587 
588         @ForceInline
589         boolean[] getBits() {
590             return (boolean[])getPayload();
591         }
592 
593         @Override
594         Byte64Mask uOp(MUnOp f) {
595             boolean[] res = new boolean[vspecies().laneCount()];
596             boolean[] bits = getBits();
597             for (int i = 0; i < res.length; i++) {
598                 res[i] = f.apply(i, bits[i]);
599             }
600             return new Byte64Mask(res);
601         }
602 
603         @Override
604         Byte64Mask bOp(VectorMask<Byte> m, MBinOp f) {
605             boolean[] res = new boolean[vspecies().laneCount()];
606             boolean[] bits = getBits();
607             boolean[] mbits = ((Byte64Mask)m).getBits();
608             for (int i = 0; i < res.length; i++) {
609                 res[i] = f.apply(i, bits[i], mbits[i]);
610             }
611             return new Byte64Mask(res);
612         }
613 
614         @ForceInline
615         @Override
616         public final
617         Byte64Vector toVector() {
618             return (Byte64Vector) super.toVectorTemplate();  // specialize
619         }
620 
621         /**
622          * Helper function for lane-wise mask conversions.
623          * This function kicks in after intrinsic failure.
624          */
625         @ForceInline
626         private final <E>
627         VectorMask<E> defaultMaskCast(AbstractSpecies<E> dsp) {
628             if (length() != dsp.laneCount())
629                 throw new IllegalArgumentException("VectorMask length and species length differ");
630             boolean[] maskArray = toArray();
631             return  dsp.maskFactory(maskArray).check(dsp);
632         }
633 
634         @Override
635         @ForceInline
636         public <E> VectorMask<E> cast(VectorSpecies<E> dsp) {
637             AbstractSpecies<E> species = (AbstractSpecies<E>) dsp;
638             if (length() != species.laneCount())
639                 throw new IllegalArgumentException("VectorMask length and species length differ");
640 
641             return VectorSupport.convert(VectorSupport.VECTOR_OP_CAST,
642                 this.getClass(), ETYPE, VLENGTH,
643                 species.maskType(), species.elementType(), VLENGTH,
644                 this, species,
645                 (m, s) -> s.maskFactory(m.toArray()).check(s));
646         }
647 
648         @Override
649         @ForceInline
650         public Byte64Mask eq(VectorMask<Byte> mask) {
651             Objects.requireNonNull(mask);
652             Byte64Mask m = (Byte64Mask)mask;
653             return xor(m.not());
654         }
655 
656         // Unary operations
657 
658         @Override
659         @ForceInline
660         public Byte64Mask not() {
661             return xor(maskAll(true));
662         }
663 
664         // Binary operations
665 
666         @Override
667         @ForceInline
668         public Byte64Mask and(VectorMask<Byte> mask) {
669             Objects.requireNonNull(mask);
670             Byte64Mask m = (Byte64Mask)mask;
671             return VectorSupport.binaryOp(VECTOR_OP_AND, Byte64Mask.class, null, byte.class, VLENGTH,
672                                           this, m, null,
673                                           (m1, m2, vm) -> m1.bOp(m2, (i, a, b) -> a & b));
674         }
675 
676         @Override
677         @ForceInline
678         public Byte64Mask or(VectorMask<Byte> mask) {
679             Objects.requireNonNull(mask);
680             Byte64Mask m = (Byte64Mask)mask;
681             return VectorSupport.binaryOp(VECTOR_OP_OR, Byte64Mask.class, null, byte.class, VLENGTH,
682                                           this, m, null,
683                                           (m1, m2, vm) -> m1.bOp(m2, (i, a, b) -> a | b));
684         }
685 
686         @ForceInline
687         /* package-private */
688         Byte64Mask xor(VectorMask<Byte> mask) {
689             Objects.requireNonNull(mask);
690             Byte64Mask m = (Byte64Mask)mask;
691             return VectorSupport.binaryOp(VECTOR_OP_XOR, Byte64Mask.class, null, byte.class, VLENGTH,
692                                           this, m, null,
693                                           (m1, m2, vm) -> m1.bOp(m2, (i, a, b) -> a ^ b));
694         }
695 
696         // Mask Query operations
697 
698         @Override
699         @ForceInline
700         public int trueCount() {
701             return (int) VectorSupport.maskReductionCoerced(VECTOR_OP_MASK_TRUECOUNT, Byte64Mask.class, byte.class, VLENGTH, this,
702                                                       (m) -> trueCountHelper(m.getBits()));
703         }
704 
705         @Override
706         @ForceInline
707         public int firstTrue() {
708             return (int) VectorSupport.maskReductionCoerced(VECTOR_OP_MASK_FIRSTTRUE, Byte64Mask.class, byte.class, VLENGTH, this,
709                                                       (m) -> firstTrueHelper(m.getBits()));
710         }
711 
712         @Override
713         @ForceInline
714         public int lastTrue() {
715             return (int) VectorSupport.maskReductionCoerced(VECTOR_OP_MASK_LASTTRUE, Byte64Mask.class, byte.class, VLENGTH, this,
716                                                       (m) -> lastTrueHelper(m.getBits()));
717         }
718 
719         @Override
720         @ForceInline
721         public long toLong() {
722             if (length() > Long.SIZE) {
723                 throw new UnsupportedOperationException("too many lanes for one long");
724             }
725             return VectorSupport.maskReductionCoerced(VECTOR_OP_MASK_TOLONG, Byte64Mask.class, byte.class, VLENGTH, this,
726                                                       (m) -> toLongHelper(m.getBits()));
727         }
728 
729         // Reductions
730 
731         @Override
732         @ForceInline
733         public boolean anyTrue() {
734             return VectorSupport.test(BT_ne, Byte64Mask.class, byte.class, VLENGTH,
735                                          this, vspecies().maskAll(true),
736                                          (m, __) -> anyTrueHelper(((Byte64Mask)m).getBits()));
737         }
738 
739         @Override
740         @ForceInline
741         public boolean allTrue() {
742             return VectorSupport.test(BT_overflow, Byte64Mask.class, byte.class, VLENGTH,
743                                          this, vspecies().maskAll(true),
744                                          (m, __) -> allTrueHelper(((Byte64Mask)m).getBits()));
745         }
746 
747         @ForceInline
748         /*package-private*/
749         static Byte64Mask maskAll(boolean bit) {
750             return VectorSupport.fromBitsCoerced(Byte64Mask.class, byte.class, VLENGTH,
751                                                  (bit ? -1 : 0), MODE_BROADCAST, null,
752                                                  (v, __) -> (v != 0 ? TRUE_MASK : FALSE_MASK));
753         }
754         private static final Byte64Mask  TRUE_MASK = new Byte64Mask(true);
755         private static final Byte64Mask FALSE_MASK = new Byte64Mask(false);
756 
757     }
758 
759     // Shuffle
760 
761     static final class Byte64Shuffle extends AbstractShuffle<Byte> {
762         static final int VLENGTH = VSPECIES.laneCount();    // used by the JVM
763         static final Class<Byte> ETYPE = byte.class; // used by the JVM
764 
765         Byte64Shuffle(byte[] reorder) {
766             super(VLENGTH, reorder);
767         }
768 
769         public Byte64Shuffle(int[] reorder) {
770             super(VLENGTH, reorder);
771         }
772 
773         public Byte64Shuffle(int[] reorder, int i) {
774             super(VLENGTH, reorder, i);
775         }
776 
777         public Byte64Shuffle(IntUnaryOperator fn) {
778             super(VLENGTH, fn);
779         }
780 
781         @Override
782         public ByteSpecies vspecies() {
783             return VSPECIES;
784         }
785 
786         static {
787             // There must be enough bits in the shuffle lanes to encode
788             // VLENGTH valid indexes and VLENGTH exceptional ones.
789             assert(VLENGTH < Byte.MAX_VALUE);
790             assert(Byte.MIN_VALUE <= -VLENGTH);
791         }
792         static final Byte64Shuffle IOTA = new Byte64Shuffle(IDENTITY);
793 
794         @Override
795         @ForceInline
796         public Byte64Vector toVector() {
797             return VectorSupport.shuffleToVector(VCLASS, ETYPE, Byte64Shuffle.class, this, VLENGTH,
798                                                     (s) -> ((Byte64Vector)(((AbstractShuffle<Byte>)(s)).toVectorTemplate())));
799         }
800 
801         @Override
802         @ForceInline
803         public <F> VectorShuffle<F> cast(VectorSpecies<F> s) {
804             AbstractSpecies<F> species = (AbstractSpecies<F>) s;
805             if (length() != species.laneCount())
806                 throw new IllegalArgumentException("VectorShuffle length and species length differ");
807             int[] shuffleArray = toArray();
808             return s.shuffleFromArray(shuffleArray, 0).check(s);
809         }
810 
811         @ForceInline
812         @Override
813         public Byte64Shuffle rearrange(VectorShuffle<Byte> shuffle) {
814             Byte64Shuffle s = (Byte64Shuffle) shuffle;
815             byte[] reorder1 = reorder();
816             byte[] reorder2 = s.reorder();
817             byte[] r = new byte[reorder1.length];
818             for (int i = 0; i < reorder1.length; i++) {
819                 int ssi = reorder2[i];
820                 r[i] = reorder1[ssi];  // throws on exceptional index
821             }
822             return new Byte64Shuffle(r);
823         }
824     }
825 
826     // ================================================
827 
828     // Specialized low-level memory operations.
829 
830     @ForceInline
831     @Override
832     final
833     ByteVector fromArray0(byte[] a, int offset) {
834         return super.fromArray0Template(a, offset);  // specialize
835     }
836 
837     @ForceInline
838     @Override
839     final
840     ByteVector fromArray0(byte[] a, int offset, VectorMask<Byte> m) {
841         return super.fromArray0Template(Byte64Mask.class, a, offset, (Byte64Mask) m);  // specialize
842     }
843 
844 
845 
846     @ForceInline
847     @Override
848     final
849     ByteVector fromBooleanArray0(boolean[] a, int offset) {
850         return super.fromBooleanArray0Template(a, offset);  // specialize
851     }
852 
853     @ForceInline
854     @Override
855     final
856     ByteVector fromBooleanArray0(boolean[] a, int offset, VectorMask<Byte> m) {
857         return super.fromBooleanArray0Template(Byte64Mask.class, a, offset, (Byte64Mask) m);  // specialize
858     }
859 
860     @ForceInline
861     @Override
862     final
863     ByteVector fromByteArray0(byte[] a, int offset) {
864         return super.fromByteArray0Template(a, offset);  // specialize
865     }
866 
867     @ForceInline
868     @Override
869     final
870     ByteVector fromByteArray0(byte[] a, int offset, VectorMask<Byte> m) {
871         return super.fromByteArray0Template(Byte64Mask.class, a, offset, (Byte64Mask) m);  // specialize
872     }
873 
874     @ForceInline
875     @Override
876     final
877     ByteVector fromByteBuffer0(ByteBuffer bb, int offset) {
878         return super.fromByteBuffer0Template(bb, offset);  // specialize
879     }
880 
881     @ForceInline
882     @Override
883     final
884     ByteVector fromByteBuffer0(ByteBuffer bb, int offset, VectorMask<Byte> m) {
885         return super.fromByteBuffer0Template(Byte64Mask.class, bb, offset, (Byte64Mask) m);  // specialize
886     }
887 
888     @ForceInline
889     @Override
890     final
891     void intoArray0(byte[] a, int offset) {
892         super.intoArray0Template(a, offset);  // specialize
893     }
894 
895     @ForceInline
896     @Override
897     final
898     void intoArray0(byte[] a, int offset, VectorMask<Byte> m) {
899         super.intoArray0Template(Byte64Mask.class, a, offset, (Byte64Mask) m);
900     }
901 
902 
903     @ForceInline
904     @Override
905     final
906     void intoBooleanArray0(boolean[] a, int offset, VectorMask<Byte> m) {
907         super.intoBooleanArray0Template(Byte64Mask.class, a, offset, (Byte64Mask) m);
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<Byte> m) {
921         super.intoByteArray0Template(Byte64Mask.class, a, offset, (Byte64Mask) m);  // specialize
922     }
923 
924     @ForceInline
925     @Override
926     final
927     void intoByteBuffer0(ByteBuffer bb, int offset, VectorMask<Byte> m) {
928         super.intoByteBuffer0Template(Byte64Mask.class, bb, offset, (Byte64Mask) m);
929     }
930 
931 
932     // End of specialized low-level memory operations.
933 
934     // ================================================
935 
936 }