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 Float256Vector extends FloatVector {
 43     static final FloatSpecies VSPECIES =
 44         (FloatSpecies) FloatVector.SPECIES_256;
 45 
 46     static final VectorShape VSHAPE =
 47         VSPECIES.vectorShape();
 48 
 49     static final Class<Float256Vector> VCLASS = Float256Vector.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<Float> ETYPE = float.class; // used by the JVM
 56 
 57     Float256Vector(float[] v) {
 58         super(v);
 59     }
 60 
 61     // For compatibility as Float256Vector::new,
 62     // stored into species.vectorFactory.
 63     Float256Vector(Object v) {
 64         this((float[]) v);
 65     }
 66 
 67     static final Float256Vector ZERO = new Float256Vector(new float[VLENGTH]);
 68     static final Float256Vector IOTA = new Float256Vector(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 FloatSpecies 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<Float> elementType() { return float.class; }
 92 
 93     @ForceInline
 94     @Override
 95     public final int elementSize() { return Float.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     float[] vec() {
117         return (float[])getPayload();
118     }
119 
120     // Virtualized constructors
121 
122     @Override
123     @ForceInline
124     public final Float256Vector broadcast(float e) {
125         return (Float256Vector) super.broadcastTemplate(e);  // specialize
126     }
127 
128     @Override
129     @ForceInline
130     public final Float256Vector broadcast(long e) {
131         return (Float256Vector) super.broadcastTemplate(e);  // specialize
132     }
133 
134     @Override
135     @ForceInline
136     Float256Mask maskFromArray(boolean[] bits) {
137         return new Float256Mask(bits);
138     }
139 
140     @Override
141     @ForceInline
142     Float256Shuffle iotaShuffle() { return Float256Shuffle.IOTA; }
143 
144     @ForceInline
145     Float256Shuffle iotaShuffle(int start, int step, boolean wrap) {
146       if (wrap) {
147         return (Float256Shuffle)VectorSupport.shuffleIota(ETYPE, Float256Shuffle.class, VSPECIES, VLENGTH, start, step, 1,
148                 (l, lstart, lstep, s) -> s.shuffleFromOp(i -> (VectorIntrinsics.wrapToRange(i*lstep + lstart, l))));
149       } else {
150         return (Float256Shuffle)VectorSupport.shuffleIota(ETYPE, Float256Shuffle.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     Float256Shuffle shuffleFromBytes(byte[] reorder) { return new Float256Shuffle(reorder); }
158 
159     @Override
160     @ForceInline
161     Float256Shuffle shuffleFromArray(int[] indexes, int i) { return new Float256Shuffle(indexes, i); }
162 
163     @Override
164     @ForceInline
165     Float256Shuffle shuffleFromOp(IntUnaryOperator fn) { return new Float256Shuffle(fn); }
166 
167     // Make a vector of the same species but the given elements:
168     @ForceInline
169     final @Override
170     Float256Vector vectorFactory(float[] vec) {
171         return new Float256Vector(vec);
172     }
173 
174     @ForceInline
175     final @Override
176     Byte256Vector asByteVectorRaw() {
177         return (Byte256Vector) 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     Float256Vector uOp(FUnOp f) {
191         return (Float256Vector) super.uOpTemplate(f);  // specialize
192     }
193 
194     @ForceInline
195     final @Override
196     Float256Vector uOp(VectorMask<Float> m, FUnOp f) {
197         return (Float256Vector)
198             super.uOpTemplate((Float256Mask)m, f);  // specialize
199     }
200 
201     // Binary operator
202 
203     @ForceInline
204     final @Override
205     Float256Vector bOp(Vector<Float> v, FBinOp f) {
206         return (Float256Vector) super.bOpTemplate((Float256Vector)v, f);  // specialize
207     }
208 
209     @ForceInline
210     final @Override
211     Float256Vector bOp(Vector<Float> v,
212                      VectorMask<Float> m, FBinOp f) {
213         return (Float256Vector)
214             super.bOpTemplate((Float256Vector)v, (Float256Mask)m,
215                               f);  // specialize
216     }
217 
218     // Ternary operator
219 
220     @ForceInline
221     final @Override
222     Float256Vector tOp(Vector<Float> v1, Vector<Float> v2, FTriOp f) {
223         return (Float256Vector)
224             super.tOpTemplate((Float256Vector)v1, (Float256Vector)v2,
225                               f);  // specialize
226     }
227 
228     @ForceInline
229     final @Override
230     Float256Vector tOp(Vector<Float> v1, Vector<Float> v2,
231                      VectorMask<Float> m, FTriOp f) {
232         return (Float256Vector)
233             super.tOpTemplate((Float256Vector)v1, (Float256Vector)v2,
234                               (Float256Mask)m, f);  // specialize
235     }
236 
237     @ForceInline
238     final @Override
239     float rOp(float v, VectorMask<Float> 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<Float,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 Float256Vector lanewise(Unary op) {
273         return (Float256Vector) super.lanewiseTemplate(op);  // specialize
274     }
275 
276     @Override
277     @ForceInline
278     public Float256Vector lanewise(Unary op, VectorMask<Float> m) {
279         return (Float256Vector) super.lanewiseTemplate(op, Float256Mask.class, (Float256Mask) m);  // specialize
280     }
281 
282     @Override
283     @ForceInline
284     public Float256Vector lanewise(Binary op, Vector<Float> v) {
285         return (Float256Vector) super.lanewiseTemplate(op, v);  // specialize
286     }
287 
288     @Override
289     @ForceInline
290     public Float256Vector lanewise(Binary op, Vector<Float> v, VectorMask<Float> m) {
291         return (Float256Vector) super.lanewiseTemplate(op, Float256Mask.class, v, (Float256Mask) m);  // specialize
292     }
293 
294 
295     /*package-private*/
296     @Override
297     @ForceInline
298     public final
299     Float256Vector
300     lanewise(Ternary op, Vector<Float> v1, Vector<Float> v2) {
301         return (Float256Vector) super.lanewiseTemplate(op, v1, v2);  // specialize
302     }
303 
304     @Override
305     @ForceInline
306     public final
307     Float256Vector
308     lanewise(Ternary op, Vector<Float> v1, Vector<Float> v2, VectorMask<Float> m) {
309         return (Float256Vector) super.lanewiseTemplate(op, Float256Mask.class, v1, v2, (Float256Mask) m);  // specialize
310     }
311 
312     @Override
313     @ForceInline
314     public final
315     Float256Vector addIndex(int scale) {
316         return (Float256Vector) super.addIndexTemplate(scale);  // specialize
317     }
318 
319     // Type specific horizontal reductions
320 
321     @Override
322     @ForceInline
323     public final float reduceLanes(VectorOperators.Associative op) {
324         return super.reduceLanesTemplate(op);  // specialized
325     }
326 
327     @Override
328     @ForceInline
329     public final float reduceLanes(VectorOperators.Associative op,
330                                     VectorMask<Float> m) {
331         return super.reduceLanesTemplate(op, Float256Mask.class, (Float256Mask) 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<Float> m) {
344         return (long) super.reduceLanesTemplate(op, Float256Mask.class, (Float256Mask) m);  // specialized
345     }
346 
347     @ForceInline
348     public VectorShuffle<Float> toShuffle() {
349         return super.toShuffleTemplate(Float256Shuffle.class); // specialize
350     }
351 
352     // Specialized unary testing
353 
354     @Override
355     @ForceInline
356     public final Float256Mask test(Test op) {
357         return super.testTemplate(Float256Mask.class, op);  // specialize
358     }
359 
360     @Override
361     @ForceInline
362     public final Float256Mask test(Test op, VectorMask<Float> m) {
363         return super.testTemplate(Float256Mask.class, op, (Float256Mask) m);  // specialize
364     }
365 
366     // Specialized comparisons
367 
368     @Override
369     @ForceInline
370     public final Float256Mask compare(Comparison op, Vector<Float> v) {
371         return super.compareTemplate(Float256Mask.class, op, v);  // specialize
372     }
373 
374     @Override
375     @ForceInline
376     public final Float256Mask compare(Comparison op, float s) {
377         return super.compareTemplate(Float256Mask.class, op, s);  // specialize
378     }
379 
380     @Override
381     @ForceInline
382     public final Float256Mask compare(Comparison op, long s) {
383         return super.compareTemplate(Float256Mask.class, op, s);  // specialize
384     }
385 
386     @Override
387     @ForceInline
388     public final Float256Mask compare(Comparison op, Vector<Float> v, VectorMask<Float> m) {
389         return super.compareTemplate(Float256Mask.class, op, v, (Float256Mask) m);
390     }
391 
392 
393     @Override
394     @ForceInline
395     public Float256Vector blend(Vector<Float> v, VectorMask<Float> m) {
396         return (Float256Vector)
397             super.blendTemplate(Float256Mask.class,
398                                 (Float256Vector) v,
399                                 (Float256Mask) m);  // specialize
400     }
401 
402     @Override
403     @ForceInline
404     public Float256Vector slice(int origin, Vector<Float> v) {
405         return (Float256Vector) super.sliceTemplate(origin, v);  // specialize
406     }
407 
408     @Override
409     @ForceInline
410     public Float256Vector slice(int origin) {
411         return (Float256Vector) super.sliceTemplate(origin);  // specialize
412     }
413 
414     @Override
415     @ForceInline
416     public Float256Vector unslice(int origin, Vector<Float> w, int part) {
417         return (Float256Vector) super.unsliceTemplate(origin, w, part);  // specialize
418     }
419 
420     @Override
421     @ForceInline
422     public Float256Vector unslice(int origin, Vector<Float> w, int part, VectorMask<Float> m) {
423         return (Float256Vector)
424             super.unsliceTemplate(Float256Mask.class,
425                                   origin, w, part,
426                                   (Float256Mask) m);  // specialize
427     }
428 
429     @Override
430     @ForceInline
431     public Float256Vector unslice(int origin) {
432         return (Float256Vector) super.unsliceTemplate(origin);  // specialize
433     }
434 
435     @Override
436     @ForceInline
437     public Float256Vector rearrange(VectorShuffle<Float> s) {
438         return (Float256Vector)
439             super.rearrangeTemplate(Float256Shuffle.class,
440                                     (Float256Shuffle) s);  // specialize
441     }
442 
443     @Override
444     @ForceInline
445     public Float256Vector rearrange(VectorShuffle<Float> shuffle,
446                                   VectorMask<Float> m) {
447         return (Float256Vector)
448             super.rearrangeTemplate(Float256Shuffle.class,
449                                     Float256Mask.class,
450                                     (Float256Shuffle) shuffle,
451                                     (Float256Mask) m);  // specialize
452     }
453 
454     @Override
455     @ForceInline
456     public Float256Vector rearrange(VectorShuffle<Float> s,
457                                   Vector<Float> v) {
458         return (Float256Vector)
459             super.rearrangeTemplate(Float256Shuffle.class,
460                                     (Float256Shuffle) s,
461                                     (Float256Vector) v);  // specialize
462     }
463 
464     @Override
465     @ForceInline
466     public Float256Vector selectFrom(Vector<Float> v) {
467         return (Float256Vector)
468             super.selectFromTemplate((Float256Vector) v);  // specialize
469     }
470 
471     @Override
472     @ForceInline
473     public Float256Vector selectFrom(Vector<Float> v,
474                                    VectorMask<Float> m) {
475         return (Float256Vector)
476             super.selectFromTemplate((Float256Vector) v,
477                                      (Float256Mask) m);  // specialize
478     }
479 
480 
481     @ForceInline
482     @Override
483     public float lane(int i) {
484         int bits;
485         switch(i) {
486             case 0: bits = laneHelper(0); break;
487             case 1: bits = laneHelper(1); break;
488             case 2: bits = laneHelper(2); break;
489             case 3: bits = laneHelper(3); break;
490             case 4: bits = laneHelper(4); break;
491             case 5: bits = laneHelper(5); break;
492             case 6: bits = laneHelper(6); break;
493             case 7: bits = laneHelper(7); break;
494             default: throw new IllegalArgumentException("Index " + i + " must be zero or positive, and less than " + VLENGTH);
495         }
496         return Float.intBitsToFloat(bits);
497     }
498 
499     public int laneHelper(int i) {
500         return (int) VectorSupport.extract(
501                      VCLASS, ETYPE, VLENGTH,
502                      this, i,
503                      (vec, ix) -> {
504                      float[] vecarr = vec.vec();
505                      return (long)Float.floatToIntBits(vecarr[ix]);
506                      });
507     }
508 
509     @ForceInline
510     @Override
511     public Float256Vector withLane(int i, float e) {
512         switch(i) {
513             case 0: return withLaneHelper(0, e);
514             case 1: return withLaneHelper(1, e);
515             case 2: return withLaneHelper(2, e);
516             case 3: return withLaneHelper(3, e);
517             case 4: return withLaneHelper(4, e);
518             case 5: return withLaneHelper(5, e);
519             case 6: return withLaneHelper(6, e);
520             case 7: return withLaneHelper(7, e);
521             default: throw new IllegalArgumentException("Index " + i + " must be zero or positive, and less than " + VLENGTH);
522         }
523     }
524 
525     public Float256Vector withLaneHelper(int i, float e) {
526         return VectorSupport.insert(
527                                 VCLASS, ETYPE, VLENGTH,
528                                 this, i, (long)Float.floatToIntBits(e),
529                                 (v, ix, bits) -> {
530                                     float[] res = v.vec().clone();
531                                     res[ix] = Float.intBitsToFloat((int)bits);
532                                     return v.vectorFactory(res);
533                                 });
534     }
535 
536     // Mask
537 
538     static final class Float256Mask extends AbstractMask<Float> {
539         static final int VLENGTH = VSPECIES.laneCount();    // used by the JVM
540         static final Class<Float> ETYPE = float.class; // used by the JVM
541 
542         Float256Mask(boolean[] bits) {
543             this(bits, 0);
544         }
545 
546         Float256Mask(boolean[] bits, int offset) {
547             super(prepare(bits, offset));
548         }
549 
550         Float256Mask(boolean val) {
551             super(prepare(val));
552         }
553 
554         private static boolean[] prepare(boolean[] bits, int offset) {
555             boolean[] newBits = new boolean[VSPECIES.laneCount()];
556             for (int i = 0; i < newBits.length; i++) {
557                 newBits[i] = bits[offset + i];
558             }
559             return newBits;
560         }
561 
562         private static boolean[] prepare(boolean val) {
563             boolean[] bits = new boolean[VSPECIES.laneCount()];
564             Arrays.fill(bits, val);
565             return bits;
566         }
567 
568         @ForceInline
569         final @Override
570         public FloatSpecies vspecies() {
571             // ISSUE:  This should probably be a @Stable
572             // field inside AbstractMask, rather than
573             // a megamorphic method.
574             return VSPECIES;
575         }
576 
577         @ForceInline
578         boolean[] getBits() {
579             return (boolean[])getPayload();
580         }
581 
582         @Override
583         Float256Mask uOp(MUnOp f) {
584             boolean[] res = new boolean[vspecies().laneCount()];
585             boolean[] bits = getBits();
586             for (int i = 0; i < res.length; i++) {
587                 res[i] = f.apply(i, bits[i]);
588             }
589             return new Float256Mask(res);
590         }
591 
592         @Override
593         Float256Mask bOp(VectorMask<Float> m, MBinOp f) {
594             boolean[] res = new boolean[vspecies().laneCount()];
595             boolean[] bits = getBits();
596             boolean[] mbits = ((Float256Mask)m).getBits();
597             for (int i = 0; i < res.length; i++) {
598                 res[i] = f.apply(i, bits[i], mbits[i]);
599             }
600             return new Float256Mask(res);
601         }
602 
603         @ForceInline
604         @Override
605         public final
606         Float256Vector toVector() {
607             return (Float256Vector) super.toVectorTemplate();  // specialize
608         }
609 
610         /**
611          * Helper function for lane-wise mask conversions.
612          * This function kicks in after intrinsic failure.
613          */
614         @ForceInline
615         private final <E>
616         VectorMask<E> defaultMaskCast(AbstractSpecies<E> dsp) {
617             if (length() != dsp.laneCount())
618                 throw new IllegalArgumentException("VectorMask length and species length differ");
619             boolean[] maskArray = toArray();
620             return  dsp.maskFactory(maskArray).check(dsp);
621         }
622 
623         @Override
624         @ForceInline
625         public <E> VectorMask<E> cast(VectorSpecies<E> dsp) {
626             AbstractSpecies<E> species = (AbstractSpecies<E>) dsp;
627             if (length() != species.laneCount())
628                 throw new IllegalArgumentException("VectorMask length and species length differ");
629 
630             return VectorSupport.convert(VectorSupport.VECTOR_OP_CAST,
631                 this.getClass(), ETYPE, VLENGTH,
632                 species.maskType(), species.elementType(), VLENGTH,
633                 this, species,
634                 (m, s) -> s.maskFactory(m.toArray()).check(s));
635         }
636 
637         @Override
638         @ForceInline
639         public Float256Mask eq(VectorMask<Float> mask) {
640             Objects.requireNonNull(mask);
641             Float256Mask m = (Float256Mask)mask;
642             return xor(m.not());
643         }
644 
645         // Unary operations
646 
647         @Override
648         @ForceInline
649         public Float256Mask not() {
650             return xor(maskAll(true));
651         }
652 
653         // Binary operations
654 
655         @Override
656         @ForceInline
657         public Float256Mask and(VectorMask<Float> mask) {
658             Objects.requireNonNull(mask);
659             Float256Mask m = (Float256Mask)mask;
660             return VectorSupport.binaryOp(VECTOR_OP_AND, Float256Mask.class, null, int.class, VLENGTH,
661                                           this, m, null,
662                                           (m1, m2, vm) -> m1.bOp(m2, (i, a, b) -> a & b));
663         }
664 
665         @Override
666         @ForceInline
667         public Float256Mask or(VectorMask<Float> mask) {
668             Objects.requireNonNull(mask);
669             Float256Mask m = (Float256Mask)mask;
670             return VectorSupport.binaryOp(VECTOR_OP_OR, Float256Mask.class, null, int.class, VLENGTH,
671                                           this, m, null,
672                                           (m1, m2, vm) -> m1.bOp(m2, (i, a, b) -> a | b));
673         }
674 
675         @ForceInline
676         /* package-private */
677         Float256Mask xor(VectorMask<Float> mask) {
678             Objects.requireNonNull(mask);
679             Float256Mask m = (Float256Mask)mask;
680             return VectorSupport.binaryOp(VECTOR_OP_XOR, Float256Mask.class, null, int.class, VLENGTH,
681                                           this, m, null,
682                                           (m1, m2, vm) -> m1.bOp(m2, (i, a, b) -> a ^ b));
683         }
684 
685         // Mask Query operations
686 
687         @Override
688         @ForceInline
689         public int trueCount() {
690             return (int) VectorSupport.maskReductionCoerced(VECTOR_OP_MASK_TRUECOUNT, Float256Mask.class, int.class, VLENGTH, this,
691                                                       (m) -> trueCountHelper(m.getBits()));
692         }
693 
694         @Override
695         @ForceInline
696         public int firstTrue() {
697             return (int) VectorSupport.maskReductionCoerced(VECTOR_OP_MASK_FIRSTTRUE, Float256Mask.class, int.class, VLENGTH, this,
698                                                       (m) -> firstTrueHelper(m.getBits()));
699         }
700 
701         @Override
702         @ForceInline
703         public int lastTrue() {
704             return (int) VectorSupport.maskReductionCoerced(VECTOR_OP_MASK_LASTTRUE, Float256Mask.class, int.class, VLENGTH, this,
705                                                       (m) -> lastTrueHelper(m.getBits()));
706         }
707 
708         @Override
709         @ForceInline
710         public long toLong() {
711             if (length() > Long.SIZE) {
712                 throw new UnsupportedOperationException("too many lanes for one long");
713             }
714             return VectorSupport.maskReductionCoerced(VECTOR_OP_MASK_TOLONG, Float256Mask.class, int.class, VLENGTH, this,
715                                                       (m) -> toLongHelper(m.getBits()));
716         }
717 
718         // Reductions
719 
720         @Override
721         @ForceInline
722         public boolean anyTrue() {
723             return VectorSupport.test(BT_ne, Float256Mask.class, int.class, VLENGTH,
724                                          this, vspecies().maskAll(true),
725                                          (m, __) -> anyTrueHelper(((Float256Mask)m).getBits()));
726         }
727 
728         @Override
729         @ForceInline
730         public boolean allTrue() {
731             return VectorSupport.test(BT_overflow, Float256Mask.class, int.class, VLENGTH,
732                                          this, vspecies().maskAll(true),
733                                          (m, __) -> allTrueHelper(((Float256Mask)m).getBits()));
734         }
735 
736         @ForceInline
737         /*package-private*/
738         static Float256Mask maskAll(boolean bit) {
739             return VectorSupport.fromBitsCoerced(Float256Mask.class, int.class, VLENGTH,
740                                                  (bit ? -1 : 0), MODE_BROADCAST, null,
741                                                  (v, __) -> (v != 0 ? TRUE_MASK : FALSE_MASK));
742         }
743         private static final Float256Mask  TRUE_MASK = new Float256Mask(true);
744         private static final Float256Mask FALSE_MASK = new Float256Mask(false);
745 
746     }
747 
748     // Shuffle
749 
750     static final class Float256Shuffle extends AbstractShuffle<Float> {
751         static final int VLENGTH = VSPECIES.laneCount();    // used by the JVM
752         static final Class<Float> ETYPE = float.class; // used by the JVM
753 
754         Float256Shuffle(byte[] reorder) {
755             super(VLENGTH, reorder);
756         }
757 
758         public Float256Shuffle(int[] reorder) {
759             super(VLENGTH, reorder);
760         }
761 
762         public Float256Shuffle(int[] reorder, int i) {
763             super(VLENGTH, reorder, i);
764         }
765 
766         public Float256Shuffle(IntUnaryOperator fn) {
767             super(VLENGTH, fn);
768         }
769 
770         @Override
771         public FloatSpecies vspecies() {
772             return VSPECIES;
773         }
774 
775         static {
776             // There must be enough bits in the shuffle lanes to encode
777             // VLENGTH valid indexes and VLENGTH exceptional ones.
778             assert(VLENGTH < Byte.MAX_VALUE);
779             assert(Byte.MIN_VALUE <= -VLENGTH);
780         }
781         static final Float256Shuffle IOTA = new Float256Shuffle(IDENTITY);
782 
783         @Override
784         @ForceInline
785         public Float256Vector toVector() {
786             return VectorSupport.shuffleToVector(VCLASS, ETYPE, Float256Shuffle.class, this, VLENGTH,
787                                                     (s) -> ((Float256Vector)(((AbstractShuffle<Float>)(s)).toVectorTemplate())));
788         }
789 
790         @Override
791         @ForceInline
792         public <F> VectorShuffle<F> cast(VectorSpecies<F> s) {
793             AbstractSpecies<F> species = (AbstractSpecies<F>) s;
794             if (length() != species.laneCount())
795                 throw new IllegalArgumentException("VectorShuffle length and species length differ");
796             int[] shuffleArray = toArray();
797             return s.shuffleFromArray(shuffleArray, 0).check(s);
798         }
799 
800         @ForceInline
801         @Override
802         public Float256Shuffle rearrange(VectorShuffle<Float> shuffle) {
803             Float256Shuffle s = (Float256Shuffle) shuffle;
804             byte[] reorder1 = reorder();
805             byte[] reorder2 = s.reorder();
806             byte[] r = new byte[reorder1.length];
807             for (int i = 0; i < reorder1.length; i++) {
808                 int ssi = reorder2[i];
809                 r[i] = reorder1[ssi];  // throws on exceptional index
810             }
811             return new Float256Shuffle(r);
812         }
813     }
814 
815     // ================================================
816 
817     // Specialized low-level memory operations.
818 
819     @ForceInline
820     @Override
821     final
822     FloatVector fromArray0(float[] a, int offset) {
823         return super.fromArray0Template(a, offset);  // specialize
824     }
825 
826     @ForceInline
827     @Override
828     final
829     FloatVector fromArray0(float[] a, int offset, VectorMask<Float> m) {
830         return super.fromArray0Template(Float256Mask.class, a, offset, (Float256Mask) m);  // specialize
831     }
832 
833     @ForceInline
834     @Override
835     final
836     FloatVector fromArray0(float[] a, int offset, int[] indexMap, int mapOffset, VectorMask<Float> m) {
837         return super.fromArray0Template(Float256Mask.class, a, offset, indexMap, mapOffset, (Float256Mask) m);
838     }
839 
840 
841 
842     @ForceInline
843     @Override
844     final
845     FloatVector fromByteArray0(byte[] a, int offset) {
846         return super.fromByteArray0Template(a, offset);  // specialize
847     }
848 
849     @ForceInline
850     @Override
851     final
852     FloatVector fromByteArray0(byte[] a, int offset, VectorMask<Float> m) {
853         return super.fromByteArray0Template(Float256Mask.class, a, offset, (Float256Mask) m);  // specialize
854     }
855 
856     @ForceInline
857     @Override
858     final
859     FloatVector fromByteBuffer0(ByteBuffer bb, int offset) {
860         return super.fromByteBuffer0Template(bb, offset);  // specialize
861     }
862 
863     @ForceInline
864     @Override
865     final
866     FloatVector fromByteBuffer0(ByteBuffer bb, int offset, VectorMask<Float> m) {
867         return super.fromByteBuffer0Template(Float256Mask.class, bb, offset, (Float256Mask) m);  // specialize
868     }
869 
870     @ForceInline
871     @Override
872     final
873     void intoArray0(float[] a, int offset) {
874         super.intoArray0Template(a, offset);  // specialize
875     }
876 
877     @ForceInline
878     @Override
879     final
880     void intoArray0(float[] a, int offset, VectorMask<Float> m) {
881         super.intoArray0Template(Float256Mask.class, a, offset, (Float256Mask) m);
882     }
883 
884     @ForceInline
885     @Override
886     final
887     void intoArray0(float[] a, int offset, int[] indexMap, int mapOffset, VectorMask<Float> m) {
888         super.intoArray0Template(Float256Mask.class, a, offset, indexMap, mapOffset, (Float256Mask) m);
889     }
890 
891 
892     @ForceInline
893     @Override
894     final
895     void intoByteArray0(byte[] a, int offset) {
896         super.intoByteArray0Template(a, offset);  // specialize
897     }
898 
899     @ForceInline
900     @Override
901     final
902     void intoByteArray0(byte[] a, int offset, VectorMask<Float> m) {
903         super.intoByteArray0Template(Float256Mask.class, a, offset, (Float256Mask) m);  // specialize
904     }
905 
906     @ForceInline
907     @Override
908     final
909     void intoByteBuffer0(ByteBuffer bb, int offset, VectorMask<Float> m) {
910         super.intoByteBuffer0Template(Float256Mask.class, bb, offset, (Float256Mask) m);
911     }
912 
913 
914     // End of specialized low-level memory operations.
915 
916     // ================================================
917 
918 }