DoubangoTelecom / DoubangoTelecom/compv

replace _mm256_permute4x64_epi64 with _mm256_shuffle_epi8

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C++
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Description

_mm256_permute4x64_epi64 latency = 3
_mm256_shuffle_epi8 latency = 1
Source: https://software.intel.com/sites/landingpage/IntrinsicsGuide

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