Function core::arch::x86::_mm256_clmulepi64_epi128
source · pub unsafe fn _mm256_clmulepi64_epi128(
a: __m256i,
b: __m256i,
const IMM8: i32,
) -> __m256i
🔬This is a nightly-only experimental API. (
stdarch_x86_avx512
#111137)Available on (x86 or x86-64) and target feature
vpclmulqdq
and x86 only.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.