Function core::arch::x86::_mm_lzcnt_epi64

pub unsafe fn _mm_lzcnt_epi64(a: __m128i) -> __m128i

🔬This is a nightly-only experimental API. (stdsimd #48556)

Available on (x86 or x86-64) and target feature avx512cd,avx512vl and x86 only.

Expand description

计算 a 中每个包装的 64 位整数中前导零位的数目，并将结果存储在 dst 中。