Function _mm256_mask_test_epi64_mask
#[target_feature(enable = "avx512f", enable = "avx512vl")]
pub const fn _mm256_mask_test_epi64_mask(k: __mmask8, a: __m256i, b: __m256i) -> __mmask8Compute the bitwise AND of packed 64-bit integers in a and b, producing intermediate 64-bit values, and set the corresponding bit in result mask k (subject to writemask k) if the intermediate value is non-zero.