cs431_homework::test::loom::arch::x86_64

Function _mm256_clmulepi64_epi128

1.89.0 · Source 
pub fn _mm256_clmulepi64_epi128<const IMM8: i32>(
    a: __m256i,
    b: __m256i,
) -> __m256i
Expand description

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