core::arch::x86::_mm256_maskz_gf2p8mul_epi8 - Rust
Description: API documentation for the Rust `_mm256_maskz_gf2p8mul_epi8` fn in crate `core`.
Keywords: rust, rustlang, rust-lang, _mm256_maskz_gf2p8mul_epi8

# [−][src]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.

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