1 /*
   2  * Copyright (c) 2017, 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
  23  * questions.
  24  */
  25 package jdk.incubator.vector;
  26 
  27 import java.nio.ByteBuffer;
  28 import java.nio.ByteOrder;
  29 import java.nio.ShortBuffer;
  30 import java.nio.ReadOnlyBufferException;
  31 import java.util.Arrays;
  32 import java.util.Objects;
  33 import java.util.function.IntUnaryOperator;
  34 
  35 import jdk.internal.misc.Unsafe;
  36 import jdk.internal.vm.annotation.ForceInline;
  37 import static jdk.incubator.vector.VectorIntrinsics.*;
  38 
  39 @SuppressWarnings("cast")
  40 final class Short256Vector extends ShortVector {
  41     private static final Species<Short> SPECIES = ShortVector.SPECIES_256;
  42 
  43     static final Short256Vector ZERO = new Short256Vector();
  44 
  45     static final int LENGTH = SPECIES.length();
  46 
  47     private final short[] vec; // Don't access directly, use getElements() instead.
  48 
  49     private short[] getElements() {
  50         return VectorIntrinsics.maybeRebox(this).vec;
  51     }
  52 
  53     Short256Vector() {
  54         vec = new short[SPECIES.length()];
  55     }
  56 
  57     Short256Vector(short[] v) {
  58         vec = v;
  59     }
  60 
  61     @Override
  62     public int length() { return LENGTH; }
  63 
  64     // Unary operator
  65 
  66     @Override
  67     Short256Vector uOp(FUnOp f) {
  68         short[] vec = getElements();
  69         short[] res = new short[length()];
  70         for (int i = 0; i < length(); i++) {
  71             res[i] = f.apply(i, vec[i]);
  72         }
  73         return new Short256Vector(res);
  74     }
  75 
  76     @Override
  77     Short256Vector uOp(Mask<Short> o, FUnOp f) {
  78         short[] vec = getElements();
  79         short[] res = new short[length()];
  80         boolean[] mbits = ((Short256Mask)o).getBits();
  81         for (int i = 0; i < length(); i++) {
  82             res[i] = mbits[i] ? f.apply(i, vec[i]) : vec[i];
  83         }
  84         return new Short256Vector(res);
  85     }
  86 
  87     // Binary operator
  88 
  89     @Override
  90     Short256Vector bOp(Vector<Short> o, FBinOp f) {
  91         short[] res = new short[length()];
  92         short[] vec1 = this.getElements();
  93         short[] vec2 = ((Short256Vector)o).getElements();
  94         for (int i = 0; i < length(); i++) {
  95             res[i] = f.apply(i, vec1[i], vec2[i]);
  96         }
  97         return new Short256Vector(res);
  98     }
  99 
 100     @Override
 101     Short256Vector bOp(Vector<Short> o1, Mask<Short> o2, FBinOp f) {
 102         short[] res = new short[length()];
 103         short[] vec1 = this.getElements();
 104         short[] vec2 = ((Short256Vector)o1).getElements();
 105         boolean[] mbits = ((Short256Mask)o2).getBits();
 106         for (int i = 0; i < length(); i++) {
 107             res[i] = mbits[i] ? f.apply(i, vec1[i], vec2[i]) : vec1[i];
 108         }
 109         return new Short256Vector(res);
 110     }
 111 
 112     // Trinary operator
 113 
 114     @Override
 115     Short256Vector tOp(Vector<Short> o1, Vector<Short> o2, FTriOp f) {
 116         short[] res = new short[length()];
 117         short[] vec1 = this.getElements();
 118         short[] vec2 = ((Short256Vector)o1).getElements();
 119         short[] vec3 = ((Short256Vector)o2).getElements();
 120         for (int i = 0; i < length(); i++) {
 121             res[i] = f.apply(i, vec1[i], vec2[i], vec3[i]);
 122         }
 123         return new Short256Vector(res);
 124     }
 125 
 126     @Override
 127     Short256Vector tOp(Vector<Short> o1, Vector<Short> o2, Mask<Short> o3, FTriOp f) {
 128         short[] res = new short[length()];
 129         short[] vec1 = getElements();
 130         short[] vec2 = ((Short256Vector)o1).getElements();
 131         short[] vec3 = ((Short256Vector)o2).getElements();
 132         boolean[] mbits = ((Short256Mask)o3).getBits();
 133         for (int i = 0; i < length(); i++) {
 134             res[i] = mbits[i] ? f.apply(i, vec1[i], vec2[i], vec3[i]) : vec1[i];
 135         }
 136         return new Short256Vector(res);
 137     }
 138 
 139     @Override
 140     short rOp(short v, FBinOp f) {
 141         short[] vec = getElements();
 142         for (int i = 0; i < length(); i++) {
 143             v = f.apply(i, v, vec[i]);
 144         }
 145         return v;
 146     }
 147 
 148     @Override
 149     @ForceInline
 150     public <F> Vector<F> cast(Species<F> s) {
 151         Objects.requireNonNull(s);
 152         if (s.length() != LENGTH)
 153             throw new IllegalArgumentException("Vector length this species length differ");
 154 
 155         return VectorIntrinsics.cast(
 156             Short256Vector.class,
 157             short.class, LENGTH,
 158             s.boxType(),
 159             s.elementType(), LENGTH,
 160             this, s,
 161             (species, vector) -> vector.castDefault(species)
 162         );
 163     }
 164 
 165     @SuppressWarnings("unchecked")
 166     @ForceInline
 167     private <F> Vector<F> castDefault(Species<F> s) {
 168         int limit = s.length();
 169 
 170         Class<?> stype = s.elementType();
 171         if (stype == byte.class) {
 172             byte[] a = new byte[limit];
 173             for (int i = 0; i < limit; i++) {
 174                 a[i] = (byte) this.get(i);
 175             }
 176             return (Vector) ByteVector.fromArray((Species<Byte>) s, a, 0);
 177         } else if (stype == short.class) {
 178             short[] a = new short[limit];
 179             for (int i = 0; i < limit; i++) {
 180                 a[i] = (short) this.get(i);
 181             }
 182             return (Vector) ShortVector.fromArray((Species<Short>) s, a, 0);
 183         } else if (stype == int.class) {
 184             int[] a = new int[limit];
 185             for (int i = 0; i < limit; i++) {
 186                 a[i] = (int) this.get(i);
 187             }
 188             return (Vector) IntVector.fromArray((Species<Integer>) s, a, 0);
 189         } else if (stype == long.class) {
 190             long[] a = new long[limit];
 191             for (int i = 0; i < limit; i++) {
 192                 a[i] = (long) this.get(i);
 193             }
 194             return (Vector) LongVector.fromArray((Species<Long>) s, a, 0);
 195         } else if (stype == float.class) {
 196             float[] a = new float[limit];
 197             for (int i = 0; i < limit; i++) {
 198                 a[i] = (float) this.get(i);
 199             }
 200             return (Vector) FloatVector.fromArray((Species<Float>) s, a, 0);
 201         } else if (stype == double.class) {
 202             double[] a = new double[limit];
 203             for (int i = 0; i < limit; i++) {
 204                 a[i] = (double) this.get(i);
 205             }
 206             return (Vector) DoubleVector.fromArray((Species<Double>) s, a, 0);
 207         } else {
 208             throw new UnsupportedOperationException("Bad lane type for casting.");
 209         }
 210     }
 211 
 212     @Override
 213     @ForceInline
 214     @SuppressWarnings("unchecked")
 215     public <F> Vector<F> reinterpret(Species<F> s) {
 216         Objects.requireNonNull(s);
 217 
 218         if(s.elementType().equals(short.class)) {
 219             return (Vector<F>) reshape((Species<Short>)s);
 220         }
 221         if(s.bitSize() == bitSize()) {
 222             return reinterpretType(s);
 223         }
 224 
 225         return defaultReinterpret(s);
 226     }
 227 
 228     @ForceInline
 229     private <F> Vector<F> reinterpretType(Species<F> s) {
 230         Objects.requireNonNull(s);
 231 
 232         Class<?> stype = s.elementType();
 233         if (stype == byte.class) {
 234             return VectorIntrinsics.reinterpret(
 235                 Short256Vector.class,
 236                 short.class, LENGTH,
 237                 Byte256Vector.class,
 238                 byte.class, Byte256Vector.LENGTH,
 239                 this, s,
 240                 (species, vector) -> vector.defaultReinterpret(species)
 241             );
 242         } else if (stype == short.class) {
 243             return VectorIntrinsics.reinterpret(
 244                 Short256Vector.class,
 245                 short.class, LENGTH,
 246                 Short256Vector.class,
 247                 short.class, Short256Vector.LENGTH,
 248                 this, s,
 249                 (species, vector) -> vector.defaultReinterpret(species)
 250             );
 251         } else if (stype == int.class) {
 252             return VectorIntrinsics.reinterpret(
 253                 Short256Vector.class,
 254                 short.class, LENGTH,
 255                 Int256Vector.class,
 256                 int.class, Int256Vector.LENGTH,
 257                 this, s,
 258                 (species, vector) -> vector.defaultReinterpret(species)
 259             );
 260         } else if (stype == long.class) {
 261             return VectorIntrinsics.reinterpret(
 262                 Short256Vector.class,
 263                 short.class, LENGTH,
 264                 Long256Vector.class,
 265                 long.class, Long256Vector.LENGTH,
 266                 this, s,
 267                 (species, vector) -> vector.defaultReinterpret(species)
 268             );
 269         } else if (stype == float.class) {
 270             return VectorIntrinsics.reinterpret(
 271                 Short256Vector.class,
 272                 short.class, LENGTH,
 273                 Float256Vector.class,
 274                 float.class, Float256Vector.LENGTH,
 275                 this, s,
 276                 (species, vector) -> vector.defaultReinterpret(species)
 277             );
 278         } else if (stype == double.class) {
 279             return VectorIntrinsics.reinterpret(
 280                 Short256Vector.class,
 281                 short.class, LENGTH,
 282                 Double256Vector.class,
 283                 double.class, Double256Vector.LENGTH,
 284                 this, s,
 285                 (species, vector) -> vector.defaultReinterpret(species)
 286             );
 287         } else {
 288             throw new UnsupportedOperationException("Bad lane type for casting.");
 289         }
 290     }
 291 
 292     @Override
 293     @ForceInline
 294     public ShortVector reshape(Species<Short> s) {
 295         Objects.requireNonNull(s);
 296         if (s.bitSize() == 64 && (s.boxType() == Short64Vector.class)) {
 297             return VectorIntrinsics.reinterpret(
 298                 Short256Vector.class,
 299                 short.class, LENGTH,
 300                 Short64Vector.class,
 301                 short.class, Short64Vector.LENGTH,
 302                 this, s,
 303                 (species, vector) -> (ShortVector) vector.defaultReinterpret(species)
 304             );
 305         } else if (s.bitSize() == 128 && (s.boxType() == Short128Vector.class)) {
 306             return VectorIntrinsics.reinterpret(
 307                 Short256Vector.class,
 308                 short.class, LENGTH,
 309                 Short128Vector.class,
 310                 short.class, Short128Vector.LENGTH,
 311                 this, s,
 312                 (species, vector) -> (ShortVector) vector.defaultReinterpret(species)
 313             );
 314         } else if (s.bitSize() == 256 && (s.boxType() == Short256Vector.class)) {
 315             return VectorIntrinsics.reinterpret(
 316                 Short256Vector.class,
 317                 short.class, LENGTH,
 318                 Short256Vector.class,
 319                 short.class, Short256Vector.LENGTH,
 320                 this, s,
 321                 (species, vector) -> (ShortVector) vector.defaultReinterpret(species)
 322             );
 323         } else if (s.bitSize() == 512 && (s.boxType() == Short512Vector.class)) {
 324             return VectorIntrinsics.reinterpret(
 325                 Short256Vector.class,
 326                 short.class, LENGTH,
 327                 Short512Vector.class,
 328                 short.class, Short512Vector.LENGTH,
 329                 this, s,
 330                 (species, vector) -> (ShortVector) vector.defaultReinterpret(species)
 331             );
 332         } else if ((s.bitSize() > 0) && (s.bitSize() <= 2048)
 333                 && (s.bitSize() % 128 == 0) && (s.boxType() == ShortMaxVector.class)) {
 334             return VectorIntrinsics.reinterpret(
 335                 Short256Vector.class,
 336                 short.class, LENGTH,
 337                 ShortMaxVector.class,
 338                 short.class, ShortMaxVector.LENGTH,
 339                 this, s,
 340                 (species, vector) -> (ShortVector) vector.defaultReinterpret(species)
 341             );
 342         } else {
 343             throw new InternalError("Unimplemented size");
 344         }
 345     }
 346 
 347     // Binary operations with scalars
 348 
 349     @Override
 350     @ForceInline
 351     public ShortVector add(short o) {
 352         return add((Short256Vector)ShortVector.broadcast(SPECIES, o));
 353     }
 354 
 355     @Override
 356     @ForceInline
 357     public ShortVector add(short o, Mask<Short> m) {
 358         return add((Short256Vector)ShortVector.broadcast(SPECIES, o), m);
 359     }
 360 
 361     @Override
 362     @ForceInline
 363     public ShortVector sub(short o) {
 364         return sub((Short256Vector)ShortVector.broadcast(SPECIES, o));
 365     }
 366 
 367     @Override
 368     @ForceInline
 369     public ShortVector sub(short o, Mask<Short> m) {
 370         return sub((Short256Vector)ShortVector.broadcast(SPECIES, o), m);
 371     }
 372 
 373     @Override
 374     @ForceInline
 375     public ShortVector mul(short o) {
 376         return mul((Short256Vector)ShortVector.broadcast(SPECIES, o));
 377     }
 378 
 379     @Override
 380     @ForceInline
 381     public ShortVector mul(short o, Mask<Short> m) {
 382         return mul((Short256Vector)ShortVector.broadcast(SPECIES, o), m);
 383     }
 384 
 385     @Override
 386     @ForceInline
 387     public ShortVector min(short o) {
 388         return min((Short256Vector)ShortVector.broadcast(SPECIES, o));
 389     }
 390 
 391     @Override
 392     @ForceInline
 393     public ShortVector max(short o) {
 394         return max((Short256Vector)ShortVector.broadcast(SPECIES, o));
 395     }
 396 
 397     @Override
 398     @ForceInline
 399     public Mask<Short> equal(short o) {
 400         return equal((Short256Vector)ShortVector.broadcast(SPECIES, o));
 401     }
 402 
 403     @Override
 404     @ForceInline
 405     public Mask<Short> notEqual(short o) {
 406         return notEqual((Short256Vector)ShortVector.broadcast(SPECIES, o));
 407     }
 408 
 409     @Override
 410     @ForceInline
 411     public Mask<Short> lessThan(short o) {
 412         return lessThan((Short256Vector)ShortVector.broadcast(SPECIES, o));
 413     }
 414 
 415     @Override
 416     @ForceInline
 417     public Mask<Short> lessThanEq(short o) {
 418         return lessThanEq((Short256Vector)ShortVector.broadcast(SPECIES, o));
 419     }
 420 
 421     @Override
 422     @ForceInline
 423     public Mask<Short> greaterThan(short o) {
 424         return greaterThan((Short256Vector)ShortVector.broadcast(SPECIES, o));
 425     }
 426 
 427     @Override
 428     @ForceInline
 429     public Mask<Short> greaterThanEq(short o) {
 430         return greaterThanEq((Short256Vector)ShortVector.broadcast(SPECIES, o));
 431     }
 432 
 433     @Override
 434     @ForceInline
 435     public ShortVector blend(short o, Mask<Short> m) {
 436         return blend((Short256Vector)ShortVector.broadcast(SPECIES, o), m);
 437     }
 438 
 439 
 440     @Override
 441     @ForceInline
 442     public ShortVector and(short o) {
 443         return and((Short256Vector)ShortVector.broadcast(SPECIES, o));
 444     }
 445 
 446     @Override
 447     @ForceInline
 448     public ShortVector and(short o, Mask<Short> m) {
 449         return and((Short256Vector)ShortVector.broadcast(SPECIES, o), m);
 450     }
 451 
 452     @Override
 453     @ForceInline
 454     public ShortVector or(short o) {
 455         return or((Short256Vector)ShortVector.broadcast(SPECIES, o));
 456     }
 457 
 458     @Override
 459     @ForceInline
 460     public ShortVector or(short o, Mask<Short> m) {
 461         return or((Short256Vector)ShortVector.broadcast(SPECIES, o), m);
 462     }
 463 
 464     @Override
 465     @ForceInline
 466     public ShortVector xor(short o) {
 467         return xor((Short256Vector)ShortVector.broadcast(SPECIES, o));
 468     }
 469 
 470     @Override
 471     @ForceInline
 472     public ShortVector xor(short o, Mask<Short> m) {
 473         return xor((Short256Vector)ShortVector.broadcast(SPECIES, o), m);
 474     }
 475 
 476     @Override
 477     @ForceInline
 478     public Short256Vector neg() {
 479         return (Short256Vector)zero(SPECIES).sub(this);
 480     }
 481 
 482     // Unary operations
 483 
 484     @ForceInline
 485     @Override
 486     public Short256Vector neg(Mask<Short> m) {
 487         return blend(neg(), m);
 488     }
 489 
 490     @Override
 491     @ForceInline
 492     public Short256Vector abs() {
 493         return VectorIntrinsics.unaryOp(
 494             VECTOR_OP_ABS, Short256Vector.class, short.class, LENGTH,
 495             this,
 496             v1 -> v1.uOp((i, a) -> (short) Math.abs(a)));
 497     }
 498 
 499     @ForceInline
 500     @Override
 501     public Short256Vector abs(Mask<Short> m) {
 502         return blend(abs(), m);
 503     }
 504 
 505 
 506     @Override
 507     @ForceInline
 508     public Short256Vector not() {
 509         return VectorIntrinsics.unaryOp(
 510             VECTOR_OP_NOT, Short256Vector.class, short.class, LENGTH,
 511             this,
 512             v1 -> v1.uOp((i, a) -> (short) ~a));
 513     }
 514 
 515     @ForceInline
 516     @Override
 517     public Short256Vector not(Mask<Short> m) {
 518         return blend(not(), m);
 519     }
 520     // Binary operations
 521 
 522     @Override
 523     @ForceInline
 524     public Short256Vector add(Vector<Short> o) {
 525         Objects.requireNonNull(o);
 526         Short256Vector v = (Short256Vector)o;
 527         return VectorIntrinsics.binaryOp(
 528             VECTOR_OP_ADD, Short256Vector.class, short.class, LENGTH,
 529             this, v,
 530             (v1, v2) -> v1.bOp(v2, (i, a, b) -> (short)(a + b)));
 531     }
 532 
 533     @Override
 534     @ForceInline
 535     public Short256Vector add(Vector<Short> v, Mask<Short> m) {
 536         return blend(add(v), m);
 537     }
 538 
 539     @Override
 540     @ForceInline
 541     public Short256Vector sub(Vector<Short> o) {
 542         Objects.requireNonNull(o);
 543         Short256Vector v = (Short256Vector)o;
 544         return VectorIntrinsics.binaryOp(
 545             VECTOR_OP_SUB, Short256Vector.class, short.class, LENGTH,
 546             this, v,
 547             (v1, v2) -> v1.bOp(v2, (i, a, b) -> (short)(a - b)));
 548     }
 549 
 550     @Override
 551     @ForceInline
 552     public Short256Vector sub(Vector<Short> v, Mask<Short> m) {
 553         return blend(sub(v), m);
 554     }
 555 
 556     @Override
 557     @ForceInline
 558     public Short256Vector mul(Vector<Short> o) {
 559         Objects.requireNonNull(o);
 560         Short256Vector v = (Short256Vector)o;
 561         return VectorIntrinsics.binaryOp(
 562             VECTOR_OP_MUL, Short256Vector.class, short.class, LENGTH,
 563             this, v,
 564             (v1, v2) -> v1.bOp(v2, (i, a, b) -> (short)(a * b)));
 565     }
 566 
 567     @Override
 568     @ForceInline
 569     public Short256Vector mul(Vector<Short> v, Mask<Short> m) {
 570         return blend(mul(v), m);
 571     }
 572 
 573     @Override
 574     @ForceInline
 575     public Short256Vector min(Vector<Short> o) {
 576         Objects.requireNonNull(o);
 577         Short256Vector v = (Short256Vector)o;
 578         return (Short256Vector) VectorIntrinsics.binaryOp(
 579             VECTOR_OP_MIN, Short256Vector.class, short.class, LENGTH,
 580             this, v,
 581             (v1, v2) -> v1.bOp(v2, (i, a, b) -> (short) Math.min(a, b)));
 582     }
 583 
 584     @Override
 585     @ForceInline
 586     public Short256Vector min(Vector<Short> v, Mask<Short> m) {
 587         return blend(min(v), m);
 588     }
 589 
 590     @Override
 591     @ForceInline
 592     public Short256Vector max(Vector<Short> o) {
 593         Objects.requireNonNull(o);
 594         Short256Vector v = (Short256Vector)o;
 595         return VectorIntrinsics.binaryOp(
 596             VECTOR_OP_MAX, Short256Vector.class, short.class, LENGTH,
 597             this, v,
 598             (v1, v2) -> v1.bOp(v2, (i, a, b) -> (short) Math.max(a, b)));
 599         }
 600 
 601     @Override
 602     @ForceInline
 603     public Short256Vector max(Vector<Short> v, Mask<Short> m) {
 604         return blend(max(v), m);
 605     }
 606 
 607     @Override
 608     @ForceInline
 609     public Short256Vector and(Vector<Short> o) {
 610         Objects.requireNonNull(o);
 611         Short256Vector v = (Short256Vector)o;
 612         return VectorIntrinsics.binaryOp(
 613             VECTOR_OP_AND, Short256Vector.class, short.class, LENGTH,
 614             this, v,
 615             (v1, v2) -> v1.bOp(v2, (i, a, b) -> (short)(a & b)));
 616     }
 617 
 618     @Override
 619     @ForceInline
 620     public Short256Vector or(Vector<Short> o) {
 621         Objects.requireNonNull(o);
 622         Short256Vector v = (Short256Vector)o;
 623         return VectorIntrinsics.binaryOp(
 624             VECTOR_OP_OR, Short256Vector.class, short.class, LENGTH,
 625             this, v,
 626             (v1, v2) -> v1.bOp(v2, (i, a, b) -> (short)(a | b)));
 627     }
 628 
 629     @Override
 630     @ForceInline
 631     public Short256Vector xor(Vector<Short> o) {
 632         Objects.requireNonNull(o);
 633         Short256Vector v = (Short256Vector)o;
 634         return VectorIntrinsics.binaryOp(
 635             VECTOR_OP_XOR, Short256Vector.class, short.class, LENGTH,
 636             this, v,
 637             (v1, v2) -> v1.bOp(v2, (i, a, b) -> (short)(a ^ b)));
 638     }
 639 
 640     @Override
 641     @ForceInline
 642     public Short256Vector and(Vector<Short> v, Mask<Short> m) {
 643         return blend(and(v), m);
 644     }
 645 
 646     @Override
 647     @ForceInline
 648     public Short256Vector or(Vector<Short> v, Mask<Short> m) {
 649         return blend(or(v), m);
 650     }
 651 
 652     @Override
 653     @ForceInline
 654     public Short256Vector xor(Vector<Short> v, Mask<Short> m) {
 655         return blend(xor(v), m);
 656     }
 657 
 658     @Override
 659     @ForceInline
 660     public Short256Vector shiftL(int s) {
 661         return VectorIntrinsics.broadcastInt(
 662             VECTOR_OP_LSHIFT, Short256Vector.class, short.class, LENGTH,
 663             this, s,
 664             (v, i) -> v.uOp((__, a) -> (short) (a << (i & 15))));
 665     }
 666 
 667     @Override
 668     @ForceInline
 669     public Short256Vector shiftL(int s, Mask<Short> m) {
 670         return blend(shiftL(s), m);
 671     }
 672 
 673     @Override
 674     @ForceInline
 675     public Short256Vector shiftR(int s) {
 676         return VectorIntrinsics.broadcastInt(
 677             VECTOR_OP_URSHIFT, Short256Vector.class, short.class, LENGTH,
 678             this, s,
 679             (v, i) -> v.uOp((__, a) -> (short) ((a & 0xFFFF) >>> (i & 15))));
 680     }
 681 
 682     @Override
 683     @ForceInline
 684     public Short256Vector shiftR(int s, Mask<Short> m) {
 685         return blend(shiftR(s), m);
 686     }
 687 
 688     @Override
 689     @ForceInline
 690     public Short256Vector aShiftR(int s) {
 691         return VectorIntrinsics.broadcastInt(
 692             VECTOR_OP_RSHIFT, Short256Vector.class, short.class, LENGTH,
 693             this, s,
 694             (v, i) -> v.uOp((__, a) -> (short) (a >> (i & 15))));
 695     }
 696 
 697     @Override
 698     @ForceInline
 699     public Short256Vector aShiftR(int s, Mask<Short> m) {
 700         return blend(aShiftR(s), m);
 701     }
 702     // Ternary operations
 703 
 704 
 705     // Type specific horizontal reductions
 706 
 707     @Override
 708     @ForceInline
 709     public short addAll() {
 710         return (short) VectorIntrinsics.reductionCoerced(
 711             VECTOR_OP_ADD, Short256Vector.class, short.class, LENGTH,
 712             this,
 713             v -> (long) v.rOp((short) 0, (i, a, b) -> (short) (a + b)));
 714     }
 715 
 716     @Override
 717     @ForceInline
 718     public short andAll() {
 719         return (short) VectorIntrinsics.reductionCoerced(
 720             VECTOR_OP_AND, Short256Vector.class, short.class, LENGTH,
 721             this,
 722             v -> (long) v.rOp((short) -1, (i, a, b) -> (short) (a & b)));
 723     }
 724 
 725     @Override
 726     @ForceInline
 727     public short andAll(Mask<Short> m) {
 728         return blend((Short256Vector)ShortVector.broadcast(SPECIES, (short) -1), m).andAll();
 729     }
 730 
 731     @Override
 732     @ForceInline
 733     public short minAll() {
 734         return (short) VectorIntrinsics.reductionCoerced(
 735             VECTOR_OP_MIN, Short256Vector.class, short.class, LENGTH,
 736             this,
 737             v -> (long) v.rOp(Short.MAX_VALUE , (i, a, b) -> (short) Math.min(a, b)));
 738     }
 739 
 740     @Override
 741     @ForceInline
 742     public short maxAll() {
 743         return (short) VectorIntrinsics.reductionCoerced(
 744             VECTOR_OP_MAX, Short256Vector.class, short.class, LENGTH,
 745             this,
 746             v -> (long) v.rOp(Short.MIN_VALUE , (i, a, b) -> (short) Math.max(a, b)));
 747     }
 748 
 749     @Override
 750     @ForceInline
 751     public short mulAll() {
 752         return (short) VectorIntrinsics.reductionCoerced(
 753             VECTOR_OP_MUL, Short256Vector.class, short.class, LENGTH,
 754             this,
 755             v -> (long) v.rOp((short) 1, (i, a, b) -> (short) (a * b)));
 756     }
 757 
 758     @Override
 759     @ForceInline
 760     public short orAll() {
 761         return (short) VectorIntrinsics.reductionCoerced(
 762             VECTOR_OP_OR, Short256Vector.class, short.class, LENGTH,
 763             this,
 764             v -> (long) v.rOp((short) 0, (i, a, b) -> (short) (a | b)));
 765     }
 766 
 767     @Override
 768     @ForceInline
 769     public short orAll(Mask<Short> m) {
 770         return blend((Short256Vector)ShortVector.broadcast(SPECIES, (short) 0), m).orAll();
 771     }
 772 
 773     @Override
 774     @ForceInline
 775     public short xorAll() {
 776         return (short) VectorIntrinsics.reductionCoerced(
 777             VECTOR_OP_XOR, Short256Vector.class, short.class, LENGTH,
 778             this,
 779             v -> (long) v.rOp((short) 0, (i, a, b) -> (short) (a ^ b)));
 780     }
 781 
 782     @Override
 783     @ForceInline
 784     public short xorAll(Mask<Short> m) {
 785         return blend((Short256Vector)ShortVector.broadcast(SPECIES, (short) 0), m).xorAll();
 786     }
 787 
 788 
 789     @Override
 790     @ForceInline
 791     public short addAll(Mask<Short> m) {
 792         return blend((Short256Vector)ShortVector.broadcast(SPECIES, (short) 0), m).addAll();
 793     }
 794 
 795 
 796     @Override
 797     @ForceInline
 798     public short mulAll(Mask<Short> m) {
 799         return blend((Short256Vector)ShortVector.broadcast(SPECIES, (short) 1), m).mulAll();
 800     }
 801 
 802     @Override
 803     @ForceInline
 804     public short minAll(Mask<Short> m) {
 805         return blend((Short256Vector)ShortVector.broadcast(SPECIES, Short.MAX_VALUE), m).minAll();
 806     }
 807 
 808     @Override
 809     @ForceInline
 810     public short maxAll(Mask<Short> m) {
 811         return blend((Short256Vector)ShortVector.broadcast(SPECIES, Short.MIN_VALUE), m).maxAll();
 812     }
 813 
 814     @Override
 815     @ForceInline
 816     public Shuffle<Short> toShuffle() {
 817         short[] a = toArray();
 818         int[] sa = new int[a.length];
 819         for (int i = 0; i < a.length; i++) {
 820             sa[i] = (int) a[i];
 821         }
 822         return Shuffle.fromArray(SPECIES, sa, 0);
 823     }
 824 
 825     // Memory operations
 826 
 827     private static final int ARRAY_SHIFT         = 31 - Integer.numberOfLeadingZeros(Unsafe.ARRAY_SHORT_INDEX_SCALE);
 828     private static final int BOOLEAN_ARRAY_SHIFT = 31 - Integer.numberOfLeadingZeros(Unsafe.ARRAY_BOOLEAN_INDEX_SCALE);
 829 
 830     @Override
 831     @ForceInline
 832     public void intoArray(short[] a, int ix) {
 833         Objects.requireNonNull(a);
 834         ix = VectorIntrinsics.checkIndex(ix, a.length, LENGTH);
 835         VectorIntrinsics.store(Short256Vector.class, short.class, LENGTH,
 836                                a, (((long) ix) << ARRAY_SHIFT) + Unsafe.ARRAY_SHORT_BASE_OFFSET,
 837                                this,
 838                                a, ix,
 839                                (arr, idx, v) -> v.forEach((i, e) -> arr[idx + i] = e));
 840     }
 841 
 842     @Override
 843     @ForceInline
 844     public final void intoArray(short[] a, int ax, Mask<Short> m) {
 845         ShortVector oldVal = ShortVector.fromArray(SPECIES, a, ax);
 846         ShortVector newVal = oldVal.blend(this, m);
 847         newVal.intoArray(a, ax);
 848     }
 849 
 850     @Override
 851     @ForceInline
 852     public void intoByteArray(byte[] a, int ix) {
 853         Objects.requireNonNull(a);
 854         ix = VectorIntrinsics.checkIndex(ix, a.length, bitSize() / Byte.SIZE);
 855         VectorIntrinsics.store(Short256Vector.class, short.class, LENGTH,
 856                                a, ((long) ix) + Unsafe.ARRAY_BYTE_BASE_OFFSET,
 857                                this,
 858                                a, ix,
 859                                (c, idx, v) -> {
 860                                    ByteBuffer bbc = ByteBuffer.wrap(c, idx, c.length - idx).order(ByteOrder.nativeOrder());
 861                                    ShortBuffer tb = bbc.asShortBuffer();
 862                                    v.forEach((i, e) -> tb.put(e));
 863                                });
 864     }
 865 
 866     @Override
 867     @ForceInline
 868     public final void intoByteArray(byte[] a, int ix, Mask<Short> m) {
 869         Short256Vector oldVal = (Short256Vector) ShortVector.fromByteArray(SPECIES, a, ix);
 870         Short256Vector newVal = oldVal.blend(this, m);
 871         newVal.intoByteArray(a, ix);
 872     }
 873 
 874     @Override
 875     @ForceInline
 876     public void intoByteBuffer(ByteBuffer bb, int ix) {
 877         if (bb.order() != ByteOrder.nativeOrder()) {
 878             throw new IllegalArgumentException();
 879         }
 880         if (bb.isReadOnly()) {
 881             throw new ReadOnlyBufferException();
 882         }
 883         ix = VectorIntrinsics.checkIndex(ix, bb.limit(), bitSize() / Byte.SIZE);
 884         VectorIntrinsics.store(Short256Vector.class, short.class, LENGTH,
 885                                U.getReference(bb, BYTE_BUFFER_HB), ix + U.getLong(bb, BUFFER_ADDRESS),
 886                                this,
 887                                bb, ix,
 888                                (c, idx, v) -> {
 889                                    ByteBuffer bbc = c.duplicate().position(idx).order(ByteOrder.nativeOrder());
 890                                    ShortBuffer tb = bbc.asShortBuffer();
 891                                    v.forEach((i, e) -> tb.put(e));
 892                                });
 893     }
 894 
 895     @Override
 896     @ForceInline
 897     public void intoByteBuffer(ByteBuffer bb, int ix, Mask<Short> m) {
 898         Short256Vector oldVal = (Short256Vector) ShortVector.fromByteBuffer(SPECIES, bb, ix);
 899         Short256Vector newVal = oldVal.blend(this, m);
 900         newVal.intoByteBuffer(bb, ix);
 901     }
 902 
 903     //
 904 
 905     @Override
 906     public String toString() {
 907         return Arrays.toString(getElements());
 908     }
 909 
 910     @Override
 911     public boolean equals(Object o) {
 912         if (this == o) return true;
 913         if (o == null || this.getClass() != o.getClass()) return false;
 914 
 915         Short256Vector that = (Short256Vector) o;
 916         return this.equal(that).allTrue();
 917     }
 918 
 919     @Override
 920     public int hashCode() {
 921         return Arrays.hashCode(vec);
 922     }
 923 
 924     // Binary test
 925 
 926     @Override
 927     Short256Mask bTest(Vector<Short> o, FBinTest f) {
 928         short[] vec1 = getElements();
 929         short[] vec2 = ((Short256Vector)o).getElements();
 930         boolean[] bits = new boolean[length()];
 931         for (int i = 0; i < length(); i++){
 932             bits[i] = f.apply(i, vec1[i], vec2[i]);
 933         }
 934         return new Short256Mask(bits);
 935     }
 936 
 937     // Comparisons
 938 
 939     @Override
 940     @ForceInline
 941     public Short256Mask equal(Vector<Short> o) {
 942         Objects.requireNonNull(o);
 943         Short256Vector v = (Short256Vector)o;
 944 
 945         return VectorIntrinsics.compare(
 946             BT_eq, Short256Vector.class, Short256Mask.class, short.class, LENGTH,
 947             this, v,
 948             (v1, v2) -> v1.bTest(v2, (i, a, b) -> a == b));
 949     }
 950 
 951     @Override
 952     @ForceInline
 953     public Short256Mask notEqual(Vector<Short> o) {
 954         Objects.requireNonNull(o);
 955         Short256Vector v = (Short256Vector)o;
 956 
 957         return VectorIntrinsics.compare(
 958             BT_ne, Short256Vector.class, Short256Mask.class, short.class, LENGTH,
 959             this, v,
 960             (v1, v2) -> v1.bTest(v2, (i, a, b) -> a != b));
 961     }
 962 
 963     @Override
 964     @ForceInline
 965     public Short256Mask lessThan(Vector<Short> o) {
 966         Objects.requireNonNull(o);
 967         Short256Vector v = (Short256Vector)o;
 968 
 969         return VectorIntrinsics.compare(
 970             BT_lt, Short256Vector.class, Short256Mask.class, short.class, LENGTH,
 971             this, v,
 972             (v1, v2) -> v1.bTest(v2, (i, a, b) -> a < b));
 973     }
 974 
 975     @Override
 976     @ForceInline
 977     public Short256Mask lessThanEq(Vector<Short> o) {
 978         Objects.requireNonNull(o);
 979         Short256Vector v = (Short256Vector)o;
 980 
 981         return VectorIntrinsics.compare(
 982             BT_le, Short256Vector.class, Short256Mask.class, short.class, LENGTH,
 983             this, v,
 984             (v1, v2) -> v1.bTest(v2, (i, a, b) -> a <= b));
 985     }
 986 
 987     @Override
 988     @ForceInline
 989     public Short256Mask greaterThan(Vector<Short> o) {
 990         Objects.requireNonNull(o);
 991         Short256Vector v = (Short256Vector)o;
 992 
 993         return (Short256Mask) VectorIntrinsics.compare(
 994             BT_gt, Short256Vector.class, Short256Mask.class, short.class, LENGTH,
 995             this, v,
 996             (v1, v2) -> v1.bTest(v2, (i, a, b) -> a > b));
 997     }
 998 
 999     @Override
1000     @ForceInline
1001     public Short256Mask greaterThanEq(Vector<Short> o) {
1002         Objects.requireNonNull(o);
1003         Short256Vector v = (Short256Vector)o;
1004 
1005         return VectorIntrinsics.compare(
1006             BT_ge, Short256Vector.class, Short256Mask.class, short.class, LENGTH,
1007             this, v,
1008             (v1, v2) -> v1.bTest(v2, (i, a, b) -> a >= b));
1009     }
1010 
1011     // Foreach
1012 
1013     @Override
1014     void forEach(FUnCon f) {
1015         short[] vec = getElements();
1016         for (int i = 0; i < length(); i++) {
1017             f.apply(i, vec[i]);
1018         }
1019     }
1020 
1021     @Override
1022     void forEach(Mask<Short> o, FUnCon f) {
1023         boolean[] mbits = ((Short256Mask)o).getBits();
1024         forEach((i, a) -> {
1025             if (mbits[i]) { f.apply(i, a); }
1026         });
1027     }
1028 
1029 
1030 
1031     @Override
1032     public Short256Vector rotateEL(int j) {
1033         short[] vec = getElements();
1034         short[] res = new short[length()];
1035         for (int i = 0; i < length(); i++){
1036             res[(j + i) % length()] = vec[i];
1037         }
1038         return new Short256Vector(res);
1039     }
1040 
1041     @Override
1042     public Short256Vector rotateER(int j) {
1043         short[] vec = getElements();
1044         short[] res = new short[length()];
1045         for (int i = 0; i < length(); i++){
1046             int z = i - j;
1047             if(j < 0) {
1048                 res[length() + z] = vec[i];
1049             } else {
1050                 res[z] = vec[i];
1051             }
1052         }
1053         return new Short256Vector(res);
1054     }
1055 
1056     @Override
1057     public Short256Vector shiftEL(int j) {
1058         short[] vec = getElements();
1059         short[] res = new short[length()];
1060         for (int i = 0; i < length() - j; i++) {
1061             res[i] = vec[i + j];
1062         }
1063         return new Short256Vector(res);
1064     }
1065 
1066     @Override
1067     public Short256Vector shiftER(int j) {
1068         short[] vec = getElements();
1069         short[] res = new short[length()];
1070         for (int i = 0; i < length() - j; i++){
1071             res[i + j] = vec[i];
1072         }
1073         return new Short256Vector(res);
1074     }
1075 
1076     @Override
1077     @ForceInline
1078     public Short256Vector rearrange(Vector<Short> v,
1079                                   Shuffle<Short> s, Mask<Short> m) {
1080         return this.rearrange(s).blend(v.rearrange(s), m);
1081     }
1082 
1083     @Override
1084     @ForceInline
1085     public Short256Vector rearrange(Shuffle<Short> o1) {
1086         Objects.requireNonNull(o1);
1087         Short256Shuffle s =  (Short256Shuffle)o1;
1088 
1089         return VectorIntrinsics.rearrangeOp(
1090             Short256Vector.class, Short256Shuffle.class, short.class, LENGTH,
1091             this, s,
1092             (v1, s_) -> v1.uOp((i, a) -> {
1093                 int ei = s_.getElement(i);
1094                 return v1.get(ei);
1095             }));
1096     }
1097 
1098     @Override
1099     @ForceInline
1100     public Short256Vector blend(Vector<Short> o1, Mask<Short> o2) {
1101         Objects.requireNonNull(o1);
1102         Objects.requireNonNull(o2);
1103         Short256Vector v = (Short256Vector)o1;
1104         Short256Mask   m = (Short256Mask)o2;
1105 
1106         return VectorIntrinsics.blend(
1107             Short256Vector.class, Short256Mask.class, short.class, LENGTH,
1108             this, v, m,
1109             (v1, v2, m_) -> v1.bOp(v2, (i, a, b) -> m_.getElement(i) ? b : a));
1110     }
1111 
1112     // Accessors
1113 
1114     @Override
1115     public short get(int i) {
1116         if (i < 0 || i >= LENGTH) {
1117             throw new IllegalArgumentException("Index " + i + " must be zero or positive, and less than " + LENGTH);
1118         }
1119         return (short) VectorIntrinsics.extract(
1120                                 Short256Vector.class, short.class, LENGTH,
1121                                 this, i,
1122                                 (vec, ix) -> {
1123                                     short[] vecarr = vec.getElements();
1124                                     return (long)vecarr[ix];
1125                                 });
1126     }
1127 
1128     @Override
1129     public Short256Vector with(int i, short e) {
1130         if (i < 0 || i >= LENGTH) {
1131             throw new IllegalArgumentException("Index " + i + " must be zero or positive, and less than " + LENGTH);
1132         }
1133         return VectorIntrinsics.insert(
1134                                 Short256Vector.class, short.class, LENGTH,
1135                                 this, i, (long)e,
1136                                 (v, ix, bits) -> {
1137                                     short[] res = v.getElements().clone();
1138                                     res[ix] = (short)bits;
1139                                     return new Short256Vector(res);
1140                                 });
1141     }
1142 
1143     // Mask
1144 
1145     static final class Short256Mask extends AbstractMask<Short> {
1146         static final Short256Mask TRUE_MASK = new Short256Mask(true);
1147         static final Short256Mask FALSE_MASK = new Short256Mask(false);
1148 
1149         private final boolean[] bits; // Don't access directly, use getBits() instead.
1150 
1151         public Short256Mask(boolean[] bits) {
1152             this(bits, 0);
1153         }
1154 
1155         public Short256Mask(boolean[] bits, int offset) {
1156             boolean[] a = new boolean[species().length()];
1157             for (int i = 0; i < a.length; i++) {
1158                 a[i] = bits[offset + i];
1159             }
1160             this.bits = a;
1161         }
1162 
1163         public Short256Mask(boolean val) {
1164             boolean[] bits = new boolean[species().length()];
1165             Arrays.fill(bits, val);
1166             this.bits = bits;
1167         }
1168 
1169         boolean[] getBits() {
1170             return VectorIntrinsics.maybeRebox(this).bits;
1171         }
1172 
1173         @Override
1174         Short256Mask uOp(MUnOp f) {
1175             boolean[] res = new boolean[species().length()];
1176             boolean[] bits = getBits();
1177             for (int i = 0; i < species().length(); i++) {
1178                 res[i] = f.apply(i, bits[i]);
1179             }
1180             return new Short256Mask(res);
1181         }
1182 
1183         @Override
1184         Short256Mask bOp(Mask<Short> o, MBinOp f) {
1185             boolean[] res = new boolean[species().length()];
1186             boolean[] bits = getBits();
1187             boolean[] mbits = ((Short256Mask)o).getBits();
1188             for (int i = 0; i < species().length(); i++) {
1189                 res[i] = f.apply(i, bits[i], mbits[i]);
1190             }
1191             return new Short256Mask(res);
1192         }
1193 
1194         @Override
1195         public Species<Short> species() {
1196             return SPECIES;
1197         }
1198 
1199         @Override
1200         public Short256Vector toVector() {
1201             short[] res = new short[species().length()];
1202             boolean[] bits = getBits();
1203             for (int i = 0; i < species().length(); i++) {
1204                 // -1 will result in the most significant bit being set in
1205                 // addition to some or all other bits
1206                 res[i] = (short) (bits[i] ? -1 : 0);
1207             }
1208             return new Short256Vector(res);
1209         }
1210 
1211         @Override
1212         @ForceInline
1213         @SuppressWarnings("unchecked")
1214         public <E> Mask<E> cast(Species<E> species) {
1215             if (length() != species.length())
1216                 throw new IllegalArgumentException("Mask length and species length differ");
1217             Class<?> stype = species.elementType();
1218             boolean [] maskArray = toArray();
1219             if (stype == byte.class) {
1220                 return (Mask <E>) new Byte256Vector.Byte256Mask(maskArray);
1221             } else if (stype == short.class) {
1222                 return (Mask <E>) new Short256Vector.Short256Mask(maskArray);
1223             } else if (stype == int.class) {
1224                 return (Mask <E>) new Int256Vector.Int256Mask(maskArray);
1225             } else if (stype == long.class) {
1226                 return (Mask <E>) new Long256Vector.Long256Mask(maskArray);
1227             } else if (stype == float.class) {
1228                 return (Mask <E>) new Float256Vector.Float256Mask(maskArray);
1229             } else if (stype == double.class) {
1230                 return (Mask <E>) new Double256Vector.Double256Mask(maskArray);
1231             } else {
1232                 throw new UnsupportedOperationException("Bad lane type for casting.");
1233             }
1234         }
1235 
1236         // Unary operations
1237 
1238         @Override
1239         @ForceInline
1240         public Short256Mask not() {
1241             return (Short256Mask) VectorIntrinsics.unaryOp(
1242                                              VECTOR_OP_NOT, Short256Mask.class, short.class, LENGTH,
1243                                              this,
1244                                              (m1) -> m1.uOp((i, a) -> !a));
1245         }
1246 
1247         // Binary operations
1248 
1249         @Override
1250         @ForceInline
1251         public Short256Mask and(Mask<Short> o) {
1252             Objects.requireNonNull(o);
1253             Short256Mask m = (Short256Mask)o;
1254             return VectorIntrinsics.binaryOp(VECTOR_OP_AND, Short256Mask.class, short.class, LENGTH,
1255                                              this, m,
1256                                              (m1, m2) -> m1.bOp(m2, (i, a, b) -> a & b));
1257         }
1258 
1259         @Override
1260         @ForceInline
1261         public Short256Mask or(Mask<Short> o) {
1262             Objects.requireNonNull(o);
1263             Short256Mask m = (Short256Mask)o;
1264             return VectorIntrinsics.binaryOp(VECTOR_OP_OR, Short256Mask.class, short.class, LENGTH,
1265                                              this, m,
1266                                              (m1, m2) -> m1.bOp(m2, (i, a, b) -> a | b));
1267         }
1268 
1269         // Reductions
1270 
1271         @Override
1272         @ForceInline
1273         public boolean anyTrue() {
1274             return VectorIntrinsics.test(BT_ne, Short256Mask.class, short.class, LENGTH,
1275                                          this, this,
1276                                          (m, __) -> anyTrueHelper(((Short256Mask)m).getBits()));
1277         }
1278 
1279         @Override
1280         @ForceInline
1281         public boolean allTrue() {
1282             return VectorIntrinsics.test(BT_overflow, Short256Mask.class, short.class, LENGTH,
1283                                          this, Mask.maskAllTrue(species()),
1284                                          (m, __) -> allTrueHelper(((Short256Mask)m).getBits()));
1285         }
1286     }
1287 
1288     // Shuffle
1289 
1290     static final class Short256Shuffle extends AbstractShuffle<Short> {
1291         Short256Shuffle(byte[] reorder) {
1292             super(reorder);
1293         }
1294 
1295         public Short256Shuffle(int[] reorder) {
1296             super(reorder);
1297         }
1298 
1299         public Short256Shuffle(int[] reorder, int i) {
1300             super(reorder, i);
1301         }
1302 
1303         public Short256Shuffle(IntUnaryOperator f) {
1304             super(f);
1305         }
1306 
1307         @Override
1308         public Species<Short> species() {
1309             return SPECIES;
1310         }
1311 
1312         @Override
1313         public ShortVector toVector() {
1314             short[] va = new short[SPECIES.length()];
1315             for (int i = 0; i < va.length; i++) {
1316               va[i] = (short) getElement(i);
1317             }
1318             return ShortVector.fromArray(SPECIES, va, 0);
1319         }
1320 
1321         @Override
1322         @ForceInline
1323         @SuppressWarnings("unchecked")
1324         public <F> Shuffle<F> cast(Species<F> species) {
1325             if (length() != species.length())
1326                 throw new IllegalArgumentException("Shuffle length and species length differ");
1327             Class<?> stype = species.elementType();
1328             int [] shuffleArray = toArray();
1329             if (stype == byte.class) {
1330                 return (Shuffle<F>) new Byte256Vector.Byte256Shuffle(shuffleArray);
1331             } else if (stype == short.class) {
1332                 return (Shuffle<F>) new Short256Vector.Short256Shuffle(shuffleArray);
1333             } else if (stype == int.class) {
1334                 return (Shuffle<F>) new Int256Vector.Int256Shuffle(shuffleArray);
1335             } else if (stype == long.class) {
1336                 return (Shuffle<F>) new Long256Vector.Long256Shuffle(shuffleArray);
1337             } else if (stype == float.class) {
1338                 return (Shuffle<F>) new Float256Vector.Float256Shuffle(shuffleArray);
1339             } else if (stype == double.class) {
1340                 return (Shuffle<F>) new Double256Vector.Double256Shuffle(shuffleArray);
1341             } else {
1342                 throw new UnsupportedOperationException("Bad lane type for casting.");
1343             }
1344         }
1345 
1346         @Override
1347         public Short256Shuffle rearrange(Shuffle<Short> o) {
1348             Short256Shuffle s = (Short256Shuffle) o;
1349             byte[] r = new byte[reorder.length];
1350             for (int i = 0; i < reorder.length; i++) {
1351                 r[i] = reorder[s.reorder[i]];
1352             }
1353             return new Short256Shuffle(r);
1354         }
1355     }
1356 
1357     // Species
1358 
1359     @Override
1360     public Species<Short> species() {
1361         return SPECIES;
1362     }
1363 }