Function core::arch::x86::_mm256_maskz_gf2p8mul_epi8

pub unsafe fn _mm256_maskz_gf2p8mul_epi8(
    k: __mmask32, 
    a: __m256i, 
    b: __m256i
) -> __m256i

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

This is supported on x86 and target feature avx512gfni,avx512bw,avx512vl 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 zeroed in the result if the corresponding mask bit is not set. Otherwise the computation result is written into the result.

Intel’s documentation