Function _mm_mask_testn_epi8_mask

pub fn _mm_mask_testn_epi8_mask(k: u16, a: __m128i, b: __m128i) -> u16

Compute the bitwise NAND of packed 8-bit integers in a and b, producing intermediate 8-bit values, and set the corresponding bit in result mask k (subject to writemask k) if the intermediate value is zero.

Intel’s documentation