Function creusot_contracts::std::arch::x86_64::_mm256_mask_gf2p8mul_epi8
source · pub unsafe fn _mm256_mask_gf2p8mul_epi8(
src: __m256i,
k: u32,
a: __m256i,
b: __m256i,
) -> __m256i
🔬This is a nightly-only experimental API. (
stdarch_x86_avx512
)Available on x86-64 only.
Expand description
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.