# Function vec_sum4

Source

    pub unsafe fn vec_sum4<T: VectorSum4>(a: T, b: T) -> vector_unsigned_int

🔬This is a nightly-only experimental API. (`stdarch_s390x` #135681)
Available on s390x and target feature `vector` only.
Expand description

Vector Sum Across Word

Returns a vector containing the results of performing a sum across all the elements in each of the word of vector a, and the rightmost sub-element of the corresponding word of b.