pub unsafe fn _mm256_cmp_epi8_mask<const IMM8: i32>(
    a: __m256i,
    b: __m256i
) -> u32
🔬This is a nightly-only experimental API. (stdsimd)
Available on non-crate feature miri-test-libstd and x86-64 only.
Expand description

Compare packed signed 8-bit integers in a and b based on the comparison operand specified by imm8, and store the results in mask vector k.

Intel’s documentation