Function safe_arch::store_m128d_s

pub fn store_m128d_s(r: &mut f64, a: m128d)

This is supported with target feature sse2 only.

Stores the low lane value to the reference given.

let a = m128d::from_array([10.0, 12.0]);
let mut f = 0.0;
store_m128d_s(&mut f, a);
assert_eq!(f, 10.0);