Function safe_arch::load_reverse_m128d

#[must_use]pub fn load_reverse_m128d(a: &m128d) -> m128d

This is supported with target feature sse2 only.

Loads the reference into a register with reversed order.

let a = m128d::from_array([10.0, 12.0]);
let b = load_reverse_m128d(&a);
assert_eq!(m128d::from_array([12.0, 10.0]).to_bits(), b.to_bits());