_mm256_maskz_gf2p8affine_epi64_epi8 in core::arch::x86 - Rust
Description: Performs an affine transformation on the packed bytes in x. That is computes a*x+b over the Galois Field 2^8 for each packed byte with a being a 8x8 bit matrix and b being a constant 8-bit immediate value. Each pack of 8 bytes in x is paired with the 64-bit word at the same position in a.
Keywords: rust, rustlang, rust-lang, _mm256_maskz_gf2p8affine_epi64_epi8

# Function core::arch::x86::_mm256_maskz_gf2p8affine_epi64_epi8
[−][src]

    pub unsafe fn _mm256_maskz_gf2p8affine_epi64_epi8<const B: i32>(
        k: __mmask32,
        x: __m256i,
        a: __m256i
    ) -> __m256i

🔬 This is a nightly-only experimental API. (`stdsimd` #48556)
This is supported on x86 and target feature `avx512gfni,avx512bw,avx512vl` only.
Expand description

Performs an affine transformation on the packed bytes in x. That is computes a*x+b over the Galois Field 2^8 for each packed byte with a being a 8x8 bit matrix and b being a constant 8-bit immediate value. Each pack of 8 bytes in x is paired with the 64-bit word at the same position in a.

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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