Function _mm256_cmpeq_epi16_mask 

pub fn _mm256_cmpeq_epi16_mask(a: __m256i, b: __m256i) -> __mmask16

Available on (x86 or x86-64) and target feature avx512bw and target feature avx512vl and x86-64 only.

Compare packed signed 16-bit integers in a and b for equality, and store the results in mask vector k.

Intel’s documentation