Macro safe_arch::extract_m128i_from_m256i

macro_rules! extract_m128i_from_m256i {
    ($a:expr, $imm:expr) => { ... };
}

This is supported with target feature avx only.

Extracts an m128i from m256i

let a = m256i::from([9, 10, 11, 12, 13, 14, 15, 16]);
let b: [i32; 4] = m128i::from([13, 14, 15, 16]).into();
let c: [i32; 4] = extract_m128i_from_m256i!(a, 1).into();
assert_eq!(b, c);