1 /*
  2  * Copyright (c) 2017, 2022, Oracle and/or its affiliates. All rights reserved.
  3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  4  *
  5  * This code is free software; you can redistribute it and/or modify it
  6  * under the terms of the GNU General Public License version 2 only, as
  7  * published by the Free Software Foundation.  Oracle designates this
  8  * particular file as subject to the "Classpath" exception as provided
  9  * by Oracle in the LICENSE file that accompanied this code.
 10  *
 11  * This code is distributed in the hope that it will be useful, but WITHOUT
 12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 14  * version 2 for more details (a copy is included in the LICENSE file that
 15  * accompanied this code).
 16  *
 17  * You should have received a copy of the GNU General Public License version
 18  * 2 along with this work; if not, write to the Free Software Foundation,
 19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 20  *
 21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 22  * or visit www.oracle.com if you need additional information or have any
 23  * questions.
 24  */
 25 package jdk.incubator.vector;
 26 
 27 import java.util.Arrays;
 28 import java.util.Objects;
 29 import java.util.function.IntUnaryOperator;
 30 
 31 import jdk.incubator.foreign.MemorySegment;
 32 import jdk.internal.vm.annotation.ForceInline;
 33 import jdk.internal.vm.vector.VectorSupport;
 34 
 35 import static jdk.internal.vm.vector.VectorSupport.*;
 36 
 37 import static jdk.incubator.vector.VectorOperators.*;
 38 
 39 // -- This file was mechanically generated: Do not edit! -- //
 40 
 41 @SuppressWarnings("cast")  // warning: redundant cast
 42 final class 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 compress(VectorMask<Float> m) {
467         return (Float256Vector)
468             super.compressTemplate(Float256Mask.class,
469                                    (Float256Mask) m);  // specialize
470     }
471 
472     @Override
473     @ForceInline
474     public Float256Vector expand(VectorMask<Float> m) {
475         return (Float256Vector)
476             super.expandTemplate(Float256Mask.class,
477                                    (Float256Mask) m);  // specialize
478     }
479 
480     @Override
481     @ForceInline
482     public Float256Vector selectFrom(Vector<Float> v) {
483         return (Float256Vector)
484             super.selectFromTemplate((Float256Vector) v);  // specialize
485     }
486 
487     @Override
488     @ForceInline
489     public Float256Vector selectFrom(Vector<Float> v,
490                                    VectorMask<Float> m) {
491         return (Float256Vector)
492             super.selectFromTemplate((Float256Vector) v,
493                                      (Float256Mask) m);  // specialize
494     }
495 
496 
497     @ForceInline
498     @Override
499     public float lane(int i) {
500         int bits;
501         switch(i) {
502             case 0: bits = laneHelper(0); break;
503             case 1: bits = laneHelper(1); break;
504             case 2: bits = laneHelper(2); break;
505             case 3: bits = laneHelper(3); break;
506             case 4: bits = laneHelper(4); break;
507             case 5: bits = laneHelper(5); break;
508             case 6: bits = laneHelper(6); break;
509             case 7: bits = laneHelper(7); break;
510             default: throw new IllegalArgumentException("Index " + i + " must be zero or positive, and less than " + VLENGTH);
511         }
512         return Float.intBitsToFloat(bits);
513     }
514 
515     public int laneHelper(int i) {
516         return (int) VectorSupport.extract(
517                      VCLASS, ETYPE, VLENGTH,
518                      this, i,
519                      (vec, ix) -> {
520                      float[] vecarr = vec.vec();
521                      return (long)Float.floatToIntBits(vecarr[ix]);
522                      });
523     }
524 
525     @ForceInline
526     @Override
527     public Float256Vector withLane(int i, float e) {
528         switch(i) {
529             case 0: return withLaneHelper(0, e);
530             case 1: return withLaneHelper(1, e);
531             case 2: return withLaneHelper(2, e);
532             case 3: return withLaneHelper(3, e);
533             case 4: return withLaneHelper(4, e);
534             case 5: return withLaneHelper(5, e);
535             case 6: return withLaneHelper(6, e);
536             case 7: return withLaneHelper(7, e);
537             default: throw new IllegalArgumentException("Index " + i + " must be zero or positive, and less than " + VLENGTH);
538         }
539     }
540 
541     public Float256Vector withLaneHelper(int i, float e) {
542         return VectorSupport.insert(
543                                 VCLASS, ETYPE, VLENGTH,
544                                 this, i, (long)Float.floatToIntBits(e),
545                                 (v, ix, bits) -> {
546                                     float[] res = v.vec().clone();
547                                     res[ix] = Float.intBitsToFloat((int)bits);
548                                     return v.vectorFactory(res);
549                                 });
550     }
551 
552     // Mask
553 
554     static final class Float256Mask extends AbstractMask<Float> {
555         static final int VLENGTH = VSPECIES.laneCount();    // used by the JVM
556         static final Class<Float> ETYPE = float.class; // used by the JVM
557 
558         Float256Mask(boolean[] bits) {
559             this(bits, 0);
560         }
561 
562         Float256Mask(boolean[] bits, int offset) {
563             super(prepare(bits, offset));
564         }
565 
566         Float256Mask(boolean val) {
567             super(prepare(val));
568         }
569 
570         private static boolean[] prepare(boolean[] bits, int offset) {
571             boolean[] newBits = new boolean[VSPECIES.laneCount()];
572             for (int i = 0; i < newBits.length; i++) {
573                 newBits[i] = bits[offset + i];
574             }
575             return newBits;
576         }
577 
578         private static boolean[] prepare(boolean val) {
579             boolean[] bits = new boolean[VSPECIES.laneCount()];
580             Arrays.fill(bits, val);
581             return bits;
582         }
583 
584         @ForceInline
585         final @Override
586         public FloatSpecies vspecies() {
587             // ISSUE:  This should probably be a @Stable
588             // field inside AbstractMask, rather than
589             // a megamorphic method.
590             return VSPECIES;
591         }
592 
593         @ForceInline
594         boolean[] getBits() {
595             return (boolean[])getPayload();
596         }
597 
598         @Override
599         Float256Mask uOp(MUnOp f) {
600             boolean[] res = new boolean[vspecies().laneCount()];
601             boolean[] bits = getBits();
602             for (int i = 0; i < res.length; i++) {
603                 res[i] = f.apply(i, bits[i]);
604             }
605             return new Float256Mask(res);
606         }
607 
608         @Override
609         Float256Mask bOp(VectorMask<Float> m, MBinOp f) {
610             boolean[] res = new boolean[vspecies().laneCount()];
611             boolean[] bits = getBits();
612             boolean[] mbits = ((Float256Mask)m).getBits();
613             for (int i = 0; i < res.length; i++) {
614                 res[i] = f.apply(i, bits[i], mbits[i]);
615             }
616             return new Float256Mask(res);
617         }
618 
619         @ForceInline
620         @Override
621         public final
622         Float256Vector toVector() {
623             return (Float256Vector) super.toVectorTemplate();  // specialize
624         }
625 
626         /**
627          * Helper function for lane-wise mask conversions.
628          * This function kicks in after intrinsic failure.
629          */
630         @ForceInline
631         private final <E>
632         VectorMask<E> defaultMaskCast(AbstractSpecies<E> dsp) {
633             if (length() != dsp.laneCount())
634                 throw new IllegalArgumentException("VectorMask length and species length differ");
635             boolean[] maskArray = toArray();
636             return  dsp.maskFactory(maskArray).check(dsp);
637         }
638 
639         @Override
640         @ForceInline
641         public <E> VectorMask<E> cast(VectorSpecies<E> dsp) {
642             AbstractSpecies<E> species = (AbstractSpecies<E>) dsp;
643             if (length() != species.laneCount())
644                 throw new IllegalArgumentException("VectorMask length and species length differ");
645 
646             return VectorSupport.convert(VectorSupport.VECTOR_OP_CAST,
647                 this.getClass(), ETYPE, VLENGTH,
648                 species.maskType(), species.elementType(), VLENGTH,
649                 this, species,
650                 (m, s) -> s.maskFactory(m.toArray()).check(s));
651         }
652 
653         @Override
654         @ForceInline
655         public Float256Mask eq(VectorMask<Float> mask) {
656             Objects.requireNonNull(mask);
657             Float256Mask m = (Float256Mask)mask;
658             return xor(m.not());
659         }
660 
661         // Unary operations
662 
663         @Override
664         @ForceInline
665         public Float256Mask not() {
666             return xor(maskAll(true));
667         }
668 
669         @Override
670         @ForceInline
671         public Float256Mask compress() {
672             return (Float256Mask)VectorSupport.comExpOp(VectorSupport.VECTOR_OP_MASK_COMPRESS,
673                 Float256Vector.class, Float256Mask.class, ETYPE, VLENGTH, null, this,
674                 (v1, m1) -> VSPECIES.iota().compare(VectorOperators.LT, m1.trueCount()));
675         }
676 
677 
678         // Binary operations
679 
680         @Override
681         @ForceInline
682         public Float256Mask and(VectorMask<Float> mask) {
683             Objects.requireNonNull(mask);
684             Float256Mask m = (Float256Mask)mask;
685             return VectorSupport.binaryOp(VECTOR_OP_AND, Float256Mask.class, null, int.class, VLENGTH,
686                                           this, m, null,
687                                           (m1, m2, vm) -> m1.bOp(m2, (i, a, b) -> a & b));
688         }
689 
690         @Override
691         @ForceInline
692         public Float256Mask or(VectorMask<Float> mask) {
693             Objects.requireNonNull(mask);
694             Float256Mask m = (Float256Mask)mask;
695             return VectorSupport.binaryOp(VECTOR_OP_OR, Float256Mask.class, null, int.class, VLENGTH,
696                                           this, m, null,
697                                           (m1, m2, vm) -> m1.bOp(m2, (i, a, b) -> a | b));
698         }
699 
700         @ForceInline
701         /* package-private */
702         Float256Mask xor(VectorMask<Float> mask) {
703             Objects.requireNonNull(mask);
704             Float256Mask m = (Float256Mask)mask;
705             return VectorSupport.binaryOp(VECTOR_OP_XOR, Float256Mask.class, null, int.class, VLENGTH,
706                                           this, m, null,
707                                           (m1, m2, vm) -> m1.bOp(m2, (i, a, b) -> a ^ b));
708         }
709 
710         // Mask Query operations
711 
712         @Override
713         @ForceInline
714         public int trueCount() {
715             return (int) VectorSupport.maskReductionCoerced(VECTOR_OP_MASK_TRUECOUNT, Float256Mask.class, int.class, VLENGTH, this,
716                                                       (m) -> trueCountHelper(m.getBits()));
717         }
718 
719         @Override
720         @ForceInline
721         public int firstTrue() {
722             return (int) VectorSupport.maskReductionCoerced(VECTOR_OP_MASK_FIRSTTRUE, Float256Mask.class, int.class, VLENGTH, this,
723                                                       (m) -> firstTrueHelper(m.getBits()));
724         }
725 
726         @Override
727         @ForceInline
728         public int lastTrue() {
729             return (int) VectorSupport.maskReductionCoerced(VECTOR_OP_MASK_LASTTRUE, Float256Mask.class, int.class, VLENGTH, this,
730                                                       (m) -> lastTrueHelper(m.getBits()));
731         }
732 
733         @Override
734         @ForceInline
735         public long toLong() {
736             if (length() > Long.SIZE) {
737                 throw new UnsupportedOperationException("too many lanes for one long");
738             }
739             return VectorSupport.maskReductionCoerced(VECTOR_OP_MASK_TOLONG, Float256Mask.class, int.class, VLENGTH, this,
740                                                       (m) -> toLongHelper(m.getBits()));
741         }
742 
743         // Reductions
744 
745         @Override
746         @ForceInline
747         public boolean anyTrue() {
748             return VectorSupport.test(BT_ne, Float256Mask.class, int.class, VLENGTH,
749                                          this, vspecies().maskAll(true),
750                                          (m, __) -> anyTrueHelper(((Float256Mask)m).getBits()));
751         }
752 
753         @Override
754         @ForceInline
755         public boolean allTrue() {
756             return VectorSupport.test(BT_overflow, Float256Mask.class, int.class, VLENGTH,
757                                          this, vspecies().maskAll(true),
758                                          (m, __) -> allTrueHelper(((Float256Mask)m).getBits()));
759         }
760 
761         @ForceInline
762         /*package-private*/
763         static Float256Mask maskAll(boolean bit) {
764             return VectorSupport.fromBitsCoerced(Float256Mask.class, int.class, VLENGTH,
765                                                  (bit ? -1 : 0), MODE_BROADCAST, null,
766                                                  (v, __) -> (v != 0 ? TRUE_MASK : FALSE_MASK));
767         }
768         private static final Float256Mask  TRUE_MASK = new Float256Mask(true);
769         private static final Float256Mask FALSE_MASK = new Float256Mask(false);
770 
771     }
772 
773     // Shuffle
774 
775     static final class Float256Shuffle extends AbstractShuffle<Float> {
776         static final int VLENGTH = VSPECIES.laneCount();    // used by the JVM
777         static final Class<Float> ETYPE = float.class; // used by the JVM
778 
779         Float256Shuffle(byte[] reorder) {
780             super(VLENGTH, reorder);
781         }
782 
783         public Float256Shuffle(int[] reorder) {
784             super(VLENGTH, reorder);
785         }
786 
787         public Float256Shuffle(int[] reorder, int i) {
788             super(VLENGTH, reorder, i);
789         }
790 
791         public Float256Shuffle(IntUnaryOperator fn) {
792             super(VLENGTH, fn);
793         }
794 
795         @Override
796         public FloatSpecies vspecies() {
797             return VSPECIES;
798         }
799 
800         static {
801             // There must be enough bits in the shuffle lanes to encode
802             // VLENGTH valid indexes and VLENGTH exceptional ones.
803             assert(VLENGTH < Byte.MAX_VALUE);
804             assert(Byte.MIN_VALUE <= -VLENGTH);
805         }
806         static final Float256Shuffle IOTA = new Float256Shuffle(IDENTITY);
807 
808         @Override
809         @ForceInline
810         public Float256Vector toVector() {
811             return VectorSupport.shuffleToVector(VCLASS, ETYPE, Float256Shuffle.class, this, VLENGTH,
812                                                     (s) -> ((Float256Vector)(((AbstractShuffle<Float>)(s)).toVectorTemplate())));
813         }
814 
815         @Override
816         @ForceInline
817         public <F> VectorShuffle<F> cast(VectorSpecies<F> s) {
818             AbstractSpecies<F> species = (AbstractSpecies<F>) s;
819             if (length() != species.laneCount())
820                 throw new IllegalArgumentException("VectorShuffle length and species length differ");
821             int[] shuffleArray = toArray();
822             return s.shuffleFromArray(shuffleArray, 0).check(s);
823         }
824 
825         @ForceInline
826         @Override
827         public Float256Shuffle rearrange(VectorShuffle<Float> shuffle) {
828             Float256Shuffle s = (Float256Shuffle) shuffle;
829             byte[] reorder1 = reorder();
830             byte[] reorder2 = s.reorder();
831             byte[] r = new byte[reorder1.length];
832             for (int i = 0; i < reorder1.length; i++) {
833                 int ssi = reorder2[i];
834                 r[i] = reorder1[ssi];  // throws on exceptional index
835             }
836             return new Float256Shuffle(r);
837         }
838     }
839 
840     // ================================================
841 
842     // Specialized low-level memory operations.
843 
844     @ForceInline
845     @Override
846     final
847     FloatVector fromArray0(float[] a, int offset) {
848         return super.fromArray0Template(a, offset);  // specialize
849     }
850 
851     @ForceInline
852     @Override
853     final
854     FloatVector fromArray0(float[] a, int offset, VectorMask<Float> m) {
855         return super.fromArray0Template(Float256Mask.class, a, offset, (Float256Mask) m);  // specialize
856     }
857 
858     @ForceInline
859     @Override
860     final
861     FloatVector fromArray0(float[] a, int offset, int[] indexMap, int mapOffset, VectorMask<Float> m) {
862         return super.fromArray0Template(Float256Mask.class, a, offset, indexMap, mapOffset, (Float256Mask) m);
863     }
864 
865 
866 
867     @ForceInline
868     @Override
869     final
870     FloatVector fromMemorySegment0(MemorySegment ms, long offset) {
871         return super.fromMemorySegment0Template(ms, offset);  // specialize
872     }
873 
874     @ForceInline
875     @Override
876     final
877     FloatVector fromMemorySegment0(MemorySegment ms, long offset, VectorMask<Float> m) {
878         return super.fromMemorySegment0Template(Float256Mask.class, ms, offset, (Float256Mask) m);  // specialize
879     }
880 
881     @ForceInline
882     @Override
883     final
884     void intoArray0(float[] a, int offset) {
885         super.intoArray0Template(a, offset);  // specialize
886     }
887 
888     @ForceInline
889     @Override
890     final
891     void intoArray0(float[] a, int offset, VectorMask<Float> m) {
892         super.intoArray0Template(Float256Mask.class, a, offset, (Float256Mask) m);
893     }
894 
895     @ForceInline
896     @Override
897     final
898     void intoArray0(float[] a, int offset, int[] indexMap, int mapOffset, VectorMask<Float> m) {
899         super.intoArray0Template(Float256Mask.class, a, offset, indexMap, mapOffset, (Float256Mask) m);
900     }
901 
902 
903     @ForceInline
904     @Override
905     final
906     void intoMemorySegment0(MemorySegment ms, long offset, VectorMask<Float> m) {
907         super.intoMemorySegment0Template(Float256Mask.class, ms, offset, (Float256Mask) m);
908     }
909 
910 
911     // End of specialized low-level memory operations.
912 
913     // ================================================
914 
915 }