Function core::arch::x86::_mm256_mask_gf2p8mul_epi8

pub unsafe fn _mm256_mask_gf2p8mul_epi8(
    src: __m256i,
    k: __mmask32,
    a: __m256i,
    b: __m256i
) -> __m256i

🔬This is a nightly-only experimental API. (stdsimd #48556)

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

Performs a multiplication in GF(2^8) on the packed bytes. The field is in polynomial representation with the reduction polynomial x^8 + x^4 + x^3 + x + 1.

Uses the writemask in k - elements are copied from src if the corresponding mask bit is not set. Otherwise the computation result is written into the result.

Intel’s documentation