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src/jdk.incubator.vector/share/classes/jdk/incubator/vector/IntVector.java

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*** 115,124 **** --- 115,144 ---- return VectorIntrinsics.broadcastCoerced((Class<IntVector>) species.vectorType(), int.class, species.length(), 0, species, ((bits, s) -> ((IntSpecies)s).op(i -> (int)bits))); } + @ForceInline + @SuppressWarnings("unchecked") + static VectorShuffle<Integer> shuffleIotaHelper(VectorSpecies<Integer> species, int step) { + switch (species.bitSize()) { + case 64: return VectorIntrinsics.shuffleIota(int.class, Int64Vector.Int64Shuffle.class, species, + 64 / Integer.SIZE, step, + (val, l) -> new Int64Vector.Int64Shuffle(i -> ((i + val) & (l-1)))); + case 128: return VectorIntrinsics.shuffleIota(int.class, Int128Vector.Int128Shuffle.class, species, + 128/ Integer.SIZE, step, + (val, l) -> new Int128Vector.Int128Shuffle(i -> ((i + val) & (l-1)))); + case 256: return VectorIntrinsics.shuffleIota(int.class, Int256Vector.Int256Shuffle.class, species, + 256/ Integer.SIZE, step, + (val, l) -> new Int256Vector.Int256Shuffle(i -> ((i + val) & (l-1)))); + case 512: return VectorIntrinsics.shuffleIota(int.class, Int512Vector.Int512Shuffle.class, species, + 512 / Integer.SIZE, step, + (val, l) -> new Int512Vector.Int512Shuffle(i -> ((i + val) & (l-1)))); + default: throw new IllegalArgumentException(Integer.toString(species.bitSize())); + } + } + /** * Loads a vector from a byte array starting at an offset. * <p> * Bytes are composed into primitive lane elements according to the * native byte order of the underlying platform
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