_mm512_clmulepi64_epi128 in core::arch::x86 - Rust
Description: Performs a carry-less multiplication of two 64-bit polynomials over the finite field GF(2) - in each of the 4 128-bit lanes.

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## _mm512_clmulepi64_epi128

# Function _mm512_clmulepi64_epi128

1.89.0 · Source

    pub fn _mm512_clmulepi64_epi128(
        a: __m512i,
        b: __m512i,
        const IMM8: i32,
    ) -> __m512i

Available on x86 and target feature `vpclmulqdq` and target feature `avx512f` only.
Expand description

Performs a carry-less multiplication of two 64-bit polynomials over the finite field GF(2) - in each of the 4 128-bit lanes.

The immediate byte is used for determining which halves of each lane `a` and `b` should be used. Immediate bits other than 0 and 4 are ignored. All lanes share immediate byte.

Intel’s documentation