Function core::arch::x86::_mm_lzcnt_epi64[−][src]

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

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

This is supported on x86 and target feature avx512cd,avx512vl only.

Expand description

Counts the number of leading zero bits in each packed 64-bit integer in a, and store the results in dst.