Function vec_gfmsum 

pub unsafe fn vec_gfmsum<T: VectorGfmsum<U>, U>(a: T, b: T) -> U

🔬This is a nightly-only experimental API. (stdarch_s390x #135681)

Available on s390x and non-target_abi=softfloat and target feature vector only.

Vector Galois Field Multiply Sum