Function core::arch::x86::_kandn_mask64   
source · pub unsafe fn _kandn_mask64(a: __mmask64, b: __mmask64) -> __mmask64🔬This is a nightly-only experimental API. (
stdsimd #48556)Available on (x86 or x86-64) and target feature 
avx512bw and x86 only.Expand description
Compute the bitwise NOT of 64-bit masks a and then AND with b, and store the result in k.