Function creusot_contracts::std::arch::x86_64::_mm_mask_lzcnt_epi64
source · pub unsafe fn _mm_mask_lzcnt_epi64(src: __m128i, k: u8, a: __m128i) -> __m128i🔬This is a nightly-only experimental API. (
stdarch_x86_avx512)Available on x86-64 only.
Expand description
Counts the number of leading zero bits in each packed 64-bit integer in a, and store the results in dst using writemask k (elements are copied from src when the corresponding mask bit is not set).