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Dr-Emann
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Use bitonic_merge for array-store union and xor, replacing repeated lane rotations with compare-exchange stages. Generalize the helper to support integer SIMD vectors with power-of-two lane counts.
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Use bitonic_merge for array-store union and xor, replacing repeated lane rotations with compare-exchange stages. Generalize the helper to support integer SIMD vectors with power-of-two lane counts.
This both does less work (
O(log(N))vsO(N)per vector), but has less operations dependent on previous operations.