pub unsafe fn _mm256_cmp_ps_mask(
    a: __m256,
    b: __m256,
    const IMM8: i32
) -> __mmask8
🔬 This is a nightly-only experimental API. (stdsimd #48556)
Available on x86 and target feature avx512f,avx512vl only.
Expand description

Compare packed single-precision (32-bit) floating-point elements in a and b based on the comparison operand specified by imm8, and store the results in mask vector k.

Intel’s documentation