[BUGFIX] Unsupported instruction was included in the Hamming distance AVX512 processing. #163
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… AVX512 processing. Signed-off-by: kpango <kpango@vdaas.org>
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Bugfix of #161
I've fixed the problem that _mm512_extract_epi64 is not a supported instruction.
So use _mm512_extracti64x4_epi64 to split into upper and lower bits and use 256 for calculation.
If AVX512VPOPCNTDQ is supported, use _mm512_popcnt_epi64 without extract.