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 Double64Vector extends DoubleVector {
 43     static final DoubleSpecies VSPECIES =
 44         (DoubleSpecies) DoubleVector.SPECIES_64;
 45 
 46     static final VectorShape VSHAPE =
 47         VSPECIES.vectorShape();
 48 
 49     static final Class<Double64Vector> VCLASS = Double64Vector.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<Double> ETYPE = double.class; // used by the JVM
 56 
 57     Double64Vector(double[] v) {
 58         super(v);
 59     }
 60 
 61     // For compatibility as Double64Vector::new,
 62     // stored into species.vectorFactory.
 63     Double64Vector(Object v) {
 64         this((double[]) v);
 65     }
 66 
 67     static final Double64Vector ZERO = new Double64Vector(new double[VLENGTH]);
 68     static final Double64Vector IOTA = new Double64Vector(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 DoubleSpecies 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<Double> elementType() { return double.class; }
 92 
 93     @ForceInline
 94     @Override
 95     public final int elementSize() { return Double.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     double[] vec() {
117         return (double[])getPayload();
118     }
119 
120     // Virtualized constructors
121 
122     @Override
123     @ForceInline
124     public final Double64Vector broadcast(double e) {
125         return (Double64Vector) super.broadcastTemplate(e);  // specialize
126     }
127 
128     @Override
129     @ForceInline
130     public final Double64Vector broadcast(long e) {
131         return (Double64Vector) super.broadcastTemplate(e);  // specialize
132     }
133 
134     @Override
135     @ForceInline
136     Double64Mask maskFromArray(boolean[] bits) {
137         return new Double64Mask(bits);
138     }
139 
140     @Override
141     @ForceInline
142     Double64Shuffle iotaShuffle() { return Double64Shuffle.IOTA; }
143 
144     @ForceInline
145     Double64Shuffle iotaShuffle(int start, int step, boolean wrap) {
146       if (wrap) {
147         return (Double64Shuffle)VectorSupport.shuffleIota(ETYPE, Double64Shuffle.class, VSPECIES, VLENGTH, start, step, 1,
148                 (l, lstart, lstep, s) -> s.shuffleFromOp(i -> (VectorIntrinsics.wrapToRange(i*lstep + lstart, l))));
149       } else {
150         return (Double64Shuffle)VectorSupport.shuffleIota(ETYPE, Double64Shuffle.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     Double64Shuffle shuffleFromBytes(byte[] reorder) { return new Double64Shuffle(reorder); }
158 
159     @Override
160     @ForceInline
161     Double64Shuffle shuffleFromArray(int[] indexes, int i) { return new Double64Shuffle(indexes, i); }
162 
163     @Override
164     @ForceInline
165     Double64Shuffle shuffleFromOp(IntUnaryOperator fn) { return new Double64Shuffle(fn); }
166 
167     // Make a vector of the same species but the given elements:
168     @ForceInline
169     final @Override
170     Double64Vector vectorFactory(double[] vec) {
171         return new Double64Vector(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     Double64Vector uOp(FUnOp f) {
191         return (Double64Vector) super.uOpTemplate(f);  // specialize
192     }
193 
194     @ForceInline
195     final @Override
196     Double64Vector uOp(VectorMask<Double> m, FUnOp f) {
197         return (Double64Vector)
198             super.uOpTemplate((Double64Mask)m, f);  // specialize
199     }
200 
201     // Binary operator
202 
203     @ForceInline
204     final @Override
205     Double64Vector bOp(Vector<Double> v, FBinOp f) {
206         return (Double64Vector) super.bOpTemplate((Double64Vector)v, f);  // specialize
207     }
208 
209     @ForceInline
210     final @Override
211     Double64Vector bOp(Vector<Double> v,
212                      VectorMask<Double> m, FBinOp f) {
213         return (Double64Vector)
214             super.bOpTemplate((Double64Vector)v, (Double64Mask)m,
215                               f);  // specialize
216     }
217 
218     // Ternary operator
219 
220     @ForceInline
221     final @Override
222     Double64Vector tOp(Vector<Double> v1, Vector<Double> v2, FTriOp f) {
223         return (Double64Vector)
224             super.tOpTemplate((Double64Vector)v1, (Double64Vector)v2,
225                               f);  // specialize
226     }
227 
228     @ForceInline
229     final @Override
230     Double64Vector tOp(Vector<Double> v1, Vector<Double> v2,
231                      VectorMask<Double> m, FTriOp f) {
232         return (Double64Vector)
233             super.tOpTemplate((Double64Vector)v1, (Double64Vector)v2,
234                               (Double64Mask)m, f);  // specialize
235     }
236 
237     @ForceInline
238     final @Override
239     double rOp(double v, VectorMask<Double> 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<Double,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 Double64Vector lanewise(Unary op) {
273         return (Double64Vector) super.lanewiseTemplate(op);  // specialize
274     }
275 
276     @Override
277     @ForceInline
278     public Double64Vector lanewise(Unary op, VectorMask<Double> m) {
279         return (Double64Vector) super.lanewiseTemplate(op, Double64Mask.class, (Double64Mask) m);  // specialize
280     }
281 
282     @Override
283     @ForceInline
284     public Double64Vector lanewise(Binary op, Vector<Double> v) {
285         return (Double64Vector) super.lanewiseTemplate(op, v);  // specialize
286     }
287 
288     @Override
289     @ForceInline
290     public Double64Vector lanewise(Binary op, Vector<Double> v, VectorMask<Double> m) {
291         return (Double64Vector) super.lanewiseTemplate(op, Double64Mask.class, v, (Double64Mask) m);  // specialize
292     }
293 
294 
295     /*package-private*/
296     @Override
297     @ForceInline
298     public final
299     Double64Vector
300     lanewise(Ternary op, Vector<Double> v1, Vector<Double> v2) {
301         return (Double64Vector) super.lanewiseTemplate(op, v1, v2);  // specialize
302     }
303 
304     @Override
305     @ForceInline
306     public final
307     Double64Vector
308     lanewise(Ternary op, Vector<Double> v1, Vector<Double> v2, VectorMask<Double> m) {
309         return (Double64Vector) super.lanewiseTemplate(op, Double64Mask.class, v1, v2, (Double64Mask) m);  // specialize
310     }
311 
312     @Override
313     @ForceInline
314     public final
315     Double64Vector addIndex(int scale) {
316         return (Double64Vector) super.addIndexTemplate(scale);  // specialize
317     }
318 
319     // Type specific horizontal reductions
320 
321     @Override
322     @ForceInline
323     public final double reduceLanes(VectorOperators.Associative op) {
324         return super.reduceLanesTemplate(op);  // specialized
325     }
326 
327     @Override
328     @ForceInline
329     public final double reduceLanes(VectorOperators.Associative op,
330                                     VectorMask<Double> m) {
331         return super.reduceLanesTemplate(op, Double64Mask.class, (Double64Mask) m);  // specialized
332     }
333 
334     @Override
335     @ForceInline
336     public final long reduceLanesToLong(VectorOperators.Associative op) {
337         return (long) super.reduceLanesTemplate(op);  // specialized
338     }
339 
340     @Override
341     @ForceInline
342     public final long reduceLanesToLong(VectorOperators.Associative op,
343                                         VectorMask<Double> m) {
344         return (long) super.reduceLanesTemplate(op, Double64Mask.class, (Double64Mask) m);  // specialized
345     }
346 
347     @ForceInline
348     public VectorShuffle<Double> toShuffle() {
349         return super.toShuffleTemplate(Double64Shuffle.class); // specialize
350     }
351 
352     // Specialized unary testing
353 
354     @Override
355     @ForceInline
356     public final Double64Mask test(Test op) {
357         return super.testTemplate(Double64Mask.class, op);  // specialize
358     }
359 
360     // Specialized comparisons
361 
362     @Override
363     @ForceInline
364     public final Double64Mask compare(Comparison op, Vector<Double> v) {
365         return super.compareTemplate(Double64Mask.class, op, v);  // specialize
366     }
367 
368     @Override
369     @ForceInline
370     public final Double64Mask compare(Comparison op, double s) {
371         return super.compareTemplate(Double64Mask.class, op, s);  // specialize
372     }
373 
374     @Override
375     @ForceInline
376     public final Double64Mask compare(Comparison op, long s) {
377         return super.compareTemplate(Double64Mask.class, op, s);  // specialize
378     }
379 
380     @Override
381     @ForceInline
382     public final Double64Mask compare(Comparison op, Vector<Double> v, VectorMask<Double> m) {
383         return super.compareTemplate(Double64Mask.class, op, v, (Double64Mask) m);
384     }
385 
386 
387     @Override
388     @ForceInline
389     public Double64Vector blend(Vector<Double> v, VectorMask<Double> m) {
390         return (Double64Vector)
391             super.blendTemplate(Double64Mask.class,
392                                 (Double64Vector) v,
393                                 (Double64Mask) m);  // specialize
394     }
395 
396     @Override
397     @ForceInline
398     public Double64Vector slice(int origin, Vector<Double> v) {
399         return (Double64Vector) super.sliceTemplate(origin, v);  // specialize
400     }
401 
402     @Override
403     @ForceInline
404     public Double64Vector slice(int origin) {
405         return (Double64Vector) super.sliceTemplate(origin);  // specialize
406     }
407 
408     @Override
409     @ForceInline
410     public Double64Vector unslice(int origin, Vector<Double> w, int part) {
411         return (Double64Vector) super.unsliceTemplate(origin, w, part);  // specialize
412     }
413 
414     @Override
415     @ForceInline
416     public Double64Vector unslice(int origin, Vector<Double> w, int part, VectorMask<Double> m) {
417         return (Double64Vector)
418             super.unsliceTemplate(Double64Mask.class,
419                                   origin, w, part,
420                                   (Double64Mask) m);  // specialize
421     }
422 
423     @Override
424     @ForceInline
425     public Double64Vector unslice(int origin) {
426         return (Double64Vector) super.unsliceTemplate(origin);  // specialize
427     }
428 
429     @Override
430     @ForceInline
431     public Double64Vector rearrange(VectorShuffle<Double> s) {
432         return (Double64Vector)
433             super.rearrangeTemplate(Double64Shuffle.class,
434                                     (Double64Shuffle) s);  // specialize
435     }
436 
437     @Override
438     @ForceInline
439     public Double64Vector rearrange(VectorShuffle<Double> shuffle,
440                                   VectorMask<Double> m) {
441         return (Double64Vector)
442             super.rearrangeTemplate(Double64Shuffle.class,
443                                     Double64Mask.class,
444                                     (Double64Shuffle) shuffle,
445                                     (Double64Mask) m);  // specialize
446     }
447 
448     @Override
449     @ForceInline
450     public Double64Vector rearrange(VectorShuffle<Double> s,
451                                   Vector<Double> v) {
452         return (Double64Vector)
453             super.rearrangeTemplate(Double64Shuffle.class,
454                                     (Double64Shuffle) s,
455                                     (Double64Vector) v);  // specialize
456     }
457 
458     @Override
459     @ForceInline
460     public Double64Vector selectFrom(Vector<Double> v) {
461         return (Double64Vector)
462             super.selectFromTemplate((Double64Vector) v);  // specialize
463     }
464 
465     @Override
466     @ForceInline
467     public Double64Vector selectFrom(Vector<Double> v,
468                                    VectorMask<Double> m) {
469         return (Double64Vector)
470             super.selectFromTemplate((Double64Vector) v,
471                                      (Double64Mask) m);  // specialize
472     }
473 
474 
475     @ForceInline
476     @Override
477     public double lane(int i) {
478         long bits;
479         switch(i) {
480             case 0: bits = laneHelper(0); break;
481             default: throw new IllegalArgumentException("Index " + i + " must be zero or positive, and less than " + VLENGTH);
482         }
483         return Double.longBitsToDouble(bits);
484     }
485 
486     public long laneHelper(int i) {
487         return (long) VectorSupport.extract(
488                      VCLASS, ETYPE, VLENGTH,
489                      this, i,
490                      (vec, ix) -> {
491                      double[] vecarr = vec.vec();
492                      return (long)Double.doubleToLongBits(vecarr[ix]);
493                      });
494     }
495 
496     @ForceInline
497     @Override
498     public Double64Vector withLane(int i, double e) {
499         switch(i) {
500             case 0: return withLaneHelper(0, e);
501             default: throw new IllegalArgumentException("Index " + i + " must be zero or positive, and less than " + VLENGTH);
502         }
503     }
504 
505     public Double64Vector withLaneHelper(int i, double e) {
506         return VectorSupport.insert(
507                                 VCLASS, ETYPE, VLENGTH,
508                                 this, i, (long)Double.doubleToLongBits(e),
509                                 (v, ix, bits) -> {
510                                     double[] res = v.vec().clone();
511                                     res[ix] = Double.longBitsToDouble((long)bits);
512                                     return v.vectorFactory(res);
513                                 });
514     }
515 
516     // Mask
517 
518     static final class Double64Mask extends AbstractMask<Double> {
519         static final int VLENGTH = VSPECIES.laneCount();    // used by the JVM
520         static final Class<Double> ETYPE = double.class; // used by the JVM
521 
522         Double64Mask(boolean[] bits) {
523             this(bits, 0);
524         }
525 
526         Double64Mask(boolean[] bits, int offset) {
527             super(prepare(bits, offset));
528         }
529 
530         Double64Mask(boolean val) {
531             super(prepare(val));
532         }
533 
534         private static boolean[] prepare(boolean[] bits, int offset) {
535             boolean[] newBits = new boolean[VSPECIES.laneCount()];
536             for (int i = 0; i < newBits.length; i++) {
537                 newBits[i] = bits[offset + i];
538             }
539             return newBits;
540         }
541 
542         private static boolean[] prepare(boolean val) {
543             boolean[] bits = new boolean[VSPECIES.laneCount()];
544             Arrays.fill(bits, val);
545             return bits;
546         }
547 
548         @ForceInline
549         final @Override
550         public DoubleSpecies vspecies() {
551             // ISSUE:  This should probably be a @Stable
552             // field inside AbstractMask, rather than
553             // a megamorphic method.
554             return VSPECIES;
555         }
556 
557         @ForceInline
558         boolean[] getBits() {
559             return (boolean[])getPayload();
560         }
561 
562         @Override
563         Double64Mask uOp(MUnOp f) {
564             boolean[] res = new boolean[vspecies().laneCount()];
565             boolean[] bits = getBits();
566             for (int i = 0; i < res.length; i++) {
567                 res[i] = f.apply(i, bits[i]);
568             }
569             return new Double64Mask(res);
570         }
571 
572         @Override
573         Double64Mask bOp(VectorMask<Double> m, MBinOp f) {
574             boolean[] res = new boolean[vspecies().laneCount()];
575             boolean[] bits = getBits();
576             boolean[] mbits = ((Double64Mask)m).getBits();
577             for (int i = 0; i < res.length; i++) {
578                 res[i] = f.apply(i, bits[i], mbits[i]);
579             }
580             return new Double64Mask(res);
581         }
582 
583         @ForceInline
584         @Override
585         public final
586         Double64Vector toVector() {
587             return (Double64Vector) super.toVectorTemplate();  // specialize
588         }
589 
590         /**
591          * Helper function for lane-wise mask conversions.
592          * This function kicks in after intrinsic failure.
593          */
594         @ForceInline
595         private final <E>
596         VectorMask<E> defaultMaskCast(AbstractSpecies<E> dsp) {
597             if (length() != dsp.laneCount())
598                 throw new IllegalArgumentException("VectorMask length and species length differ");
599             boolean[] maskArray = toArray();
600             return  dsp.maskFactory(maskArray).check(dsp);
601         }
602 
603         @Override
604         @ForceInline
605         public <E> VectorMask<E> cast(VectorSpecies<E> dsp) {
606             AbstractSpecies<E> species = (AbstractSpecies<E>) dsp;
607             if (length() != species.laneCount())
608                 throw new IllegalArgumentException("VectorMask length and species length differ");
609 
610             return VectorSupport.convert(VectorSupport.VECTOR_OP_CAST,
611                 this.getClass(), ETYPE, VLENGTH,
612                 species.maskType(), species.elementType(), VLENGTH,
613                 this, species,
614                 (m, s) -> s.maskFactory(m.toArray()).check(s));
615         }
616 
617         @Override
618         @ForceInline
619         public Double64Mask eq(VectorMask<Double> mask) {
620             Objects.requireNonNull(mask);
621             Double64Mask m = (Double64Mask)mask;
622             return xor(m.not());
623         }
624 
625         // Unary operations
626 
627         @Override
628         @ForceInline
629         public Double64Mask not() {
630             return xor(maskAll(true));
631         }
632 
633         // Binary operations
634 
635         @Override
636         @ForceInline
637         public Double64Mask and(VectorMask<Double> mask) {
638             Objects.requireNonNull(mask);
639             Double64Mask m = (Double64Mask)mask;
640             return VectorSupport.binaryOp(VECTOR_OP_AND, Double64Mask.class, null, long.class, VLENGTH,
641                                           this, m, null,
642                                           (m1, m2, vm) -> m1.bOp(m2, (i, a, b) -> a & b));
643         }
644 
645         @Override
646         @ForceInline
647         public Double64Mask or(VectorMask<Double> mask) {
648             Objects.requireNonNull(mask);
649             Double64Mask m = (Double64Mask)mask;
650             return VectorSupport.binaryOp(VECTOR_OP_OR, Double64Mask.class, null, long.class, VLENGTH,
651                                           this, m, null,
652                                           (m1, m2, vm) -> m1.bOp(m2, (i, a, b) -> a | b));
653         }
654 
655         @ForceInline
656         /* package-private */
657         Double64Mask xor(VectorMask<Double> mask) {
658             Objects.requireNonNull(mask);
659             Double64Mask m = (Double64Mask)mask;
660             return VectorSupport.binaryOp(VECTOR_OP_XOR, Double64Mask.class, null, long.class, VLENGTH,
661                                           this, m, null,
662                                           (m1, m2, vm) -> m1.bOp(m2, (i, a, b) -> a ^ b));
663         }
664 
665         // Mask Query operations
666 
667         @Override
668         @ForceInline
669         public int trueCount() {
670             return (int) VectorSupport.maskReductionCoerced(VECTOR_OP_MASK_TRUECOUNT, Double64Mask.class, long.class, VLENGTH, this,
671                                                       (m) -> trueCountHelper(m.getBits()));
672         }
673 
674         @Override
675         @ForceInline
676         public int firstTrue() {
677             return (int) VectorSupport.maskReductionCoerced(VECTOR_OP_MASK_FIRSTTRUE, Double64Mask.class, long.class, VLENGTH, this,
678                                                       (m) -> firstTrueHelper(m.getBits()));
679         }
680 
681         @Override
682         @ForceInline
683         public int lastTrue() {
684             return (int) VectorSupport.maskReductionCoerced(VECTOR_OP_MASK_LASTTRUE, Double64Mask.class, long.class, VLENGTH, this,
685                                                       (m) -> lastTrueHelper(m.getBits()));
686         }
687 
688         @Override
689         @ForceInline
690         public long toLong() {
691             if (length() > Long.SIZE) {
692                 throw new UnsupportedOperationException("too many lanes for one long");
693             }
694             return VectorSupport.maskReductionCoerced(VECTOR_OP_MASK_TOLONG, Double64Mask.class, long.class, VLENGTH, this,
695                                                       (m) -> toLongHelper(m.getBits()));
696         }
697 
698         // Reductions
699 
700         @Override
701         @ForceInline
702         public boolean anyTrue() {
703             return VectorSupport.test(BT_ne, Double64Mask.class, long.class, VLENGTH,
704                                          this, vspecies().maskAll(true),
705                                          (m, __) -> anyTrueHelper(((Double64Mask)m).getBits()));
706         }
707 
708         @Override
709         @ForceInline
710         public boolean allTrue() {
711             return VectorSupport.test(BT_overflow, Double64Mask.class, long.class, VLENGTH,
712                                          this, vspecies().maskAll(true),
713                                          (m, __) -> allTrueHelper(((Double64Mask)m).getBits()));
714         }
715 
716         @ForceInline
717         /*package-private*/
718         static Double64Mask maskAll(boolean bit) {
719             return VectorSupport.broadcastCoerced(Double64Mask.class, long.class, VLENGTH,
720                                                   (bit ? -1 : 0), null,
721                                                   (v, __) -> (v != 0 ? TRUE_MASK : FALSE_MASK));
722         }
723         private static final Double64Mask  TRUE_MASK = new Double64Mask(true);
724         private static final Double64Mask FALSE_MASK = new Double64Mask(false);
725 
726     }
727 
728     // Shuffle
729 
730     static final class Double64Shuffle extends AbstractShuffle<Double> {
731         static final int VLENGTH = VSPECIES.laneCount();    // used by the JVM
732         static final Class<Double> ETYPE = double.class; // used by the JVM
733 
734         Double64Shuffle(byte[] reorder) {
735             super(VLENGTH, reorder);
736         }
737 
738         public Double64Shuffle(int[] reorder) {
739             super(VLENGTH, reorder);
740         }
741 
742         public Double64Shuffle(int[] reorder, int i) {
743             super(VLENGTH, reorder, i);
744         }
745 
746         public Double64Shuffle(IntUnaryOperator fn) {
747             super(VLENGTH, fn);
748         }
749 
750         @Override
751         public DoubleSpecies vspecies() {
752             return VSPECIES;
753         }
754 
755         static {
756             // There must be enough bits in the shuffle lanes to encode
757             // VLENGTH valid indexes and VLENGTH exceptional ones.
758             assert(VLENGTH < Byte.MAX_VALUE);
759             assert(Byte.MIN_VALUE <= -VLENGTH);
760         }
761         static final Double64Shuffle IOTA = new Double64Shuffle(IDENTITY);
762 
763         @Override
764         @ForceInline
765         public Double64Vector toVector() {
766             return VectorSupport.shuffleToVector(VCLASS, ETYPE, Double64Shuffle.class, this, VLENGTH,
767                                                     (s) -> ((Double64Vector)(((AbstractShuffle<Double>)(s)).toVectorTemplate())));
768         }
769 
770         @Override
771         @ForceInline
772         public <F> VectorShuffle<F> cast(VectorSpecies<F> s) {
773             AbstractSpecies<F> species = (AbstractSpecies<F>) s;
774             if (length() != species.laneCount())
775                 throw new IllegalArgumentException("VectorShuffle length and species length differ");
776             int[] shuffleArray = toArray();
777             return s.shuffleFromArray(shuffleArray, 0).check(s);
778         }
779 
780         @ForceInline
781         @Override
782         public Double64Shuffle rearrange(VectorShuffle<Double> shuffle) {
783             Double64Shuffle s = (Double64Shuffle) shuffle;
784             byte[] reorder1 = reorder();
785             byte[] reorder2 = s.reorder();
786             byte[] r = new byte[reorder1.length];
787             for (int i = 0; i < reorder1.length; i++) {
788                 int ssi = reorder2[i];
789                 r[i] = reorder1[ssi];  // throws on exceptional index
790             }
791             return new Double64Shuffle(r);
792         }
793     }
794 
795     // ================================================
796 
797     // Specialized low-level memory operations.
798 
799     @ForceInline
800     @Override
801     final
802     DoubleVector fromArray0(double[] a, int offset) {
803         return super.fromArray0Template(a, offset);  // specialize
804     }
805 
806     @ForceInline
807     @Override
808     final
809     DoubleVector fromArray0(double[] a, int offset, VectorMask<Double> m) {
810         return super.fromArray0Template(Double64Mask.class, a, offset, (Double64Mask) m);  // specialize
811     }
812 
813     @ForceInline
814     @Override
815     final
816     DoubleVector fromArray0(double[] a, int offset, int[] indexMap, int mapOffset, VectorMask<Double> m) {
817         return super.fromArray0Template(Double64Mask.class, a, offset, indexMap, mapOffset, (Double64Mask) m);
818     }
819 
820 
821 
822     @ForceInline
823     @Override
824     final
825     DoubleVector fromByteArray0(byte[] a, int offset) {
826         return super.fromByteArray0Template(a, offset);  // specialize
827     }
828 
829     @ForceInline
830     @Override
831     final
832     DoubleVector fromByteArray0(byte[] a, int offset, VectorMask<Double> m) {
833         return super.fromByteArray0Template(Double64Mask.class, a, offset, (Double64Mask) m);  // specialize
834     }
835 
836     @ForceInline
837     @Override
838     final
839     DoubleVector fromByteBuffer0(ByteBuffer bb, int offset) {
840         return super.fromByteBuffer0Template(bb, offset);  // specialize
841     }
842 
843     @ForceInline
844     @Override
845     final
846     DoubleVector fromByteBuffer0(ByteBuffer bb, int offset, VectorMask<Double> m) {
847         return super.fromByteBuffer0Template(Double64Mask.class, bb, offset, (Double64Mask) m);  // specialize
848     }
849 
850     @ForceInline
851     @Override
852     final
853     void intoArray0(double[] a, int offset) {
854         super.intoArray0Template(a, offset);  // specialize
855     }
856 
857     @ForceInline
858     @Override
859     final
860     void intoArray0(double[] a, int offset, VectorMask<Double> m) {
861         super.intoArray0Template(Double64Mask.class, a, offset, (Double64Mask) m);
862     }
863 
864     @ForceInline
865     @Override
866     final
867     void intoArray0(double[] a, int offset, int[] indexMap, int mapOffset, VectorMask<Double> m) {
868         super.intoArray0Template(Double64Mask.class, a, offset, indexMap, mapOffset, (Double64Mask) m);
869     }
870 
871 
872     @ForceInline
873     @Override
874     final
875     void intoByteArray0(byte[] a, int offset) {
876         super.intoByteArray0Template(a, offset);  // specialize
877     }
878 
879     @ForceInline
880     @Override
881     final
882     void intoByteArray0(byte[] a, int offset, VectorMask<Double> m) {
883         super.intoByteArray0Template(Double64Mask.class, a, offset, (Double64Mask) m);  // specialize
884     }
885 
886     @ForceInline
887     @Override
888     final
889     void intoByteBuffer0(ByteBuffer bb, int offset, VectorMask<Double> m) {
890         super.intoByteBuffer0Template(Double64Mask.class, bb, offset, (Double64Mask) m);
891     }
892 
893 
894     // End of specialized low-level memory operations.
895 
896     // ================================================
897 
898 }