pub unsafe fn _mm256_popcnt_epi64(a: __m256i) -> __m256i
🔬This is a nightly-only experimental API. (stdsimd #48556)
Available on (x86 or x86-64) and target feature avx512vpopcntdq,avx512vl and x86-64 only.
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对于每个包装的 64 位整数 maps,该值均等于逻辑 1 位的数量。

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