Function safe_arch::shuffle_abi_f64_all_m128d

pub fn shuffle_abi_f64_all_m128d<const MASK: i32>(a: m128d, b: m128d) -> m128d

Shuffle the f64 lanes from $a and $b together using an immediate control value.

The a: and b: prefixes on the index selection values are literal tokens that you type. It helps keep clear what value comes from where. The first two output lanes come from $a, the second two output lanes come from $b.

You can pass the same value as both arguments, but if you want to swizzle within only a single register and you have avx available consider using [shuffle_ai_f64_all_m128d] instead. You’ll get much better performance.

let a = m128d::from_array([1.0, 2.0]);
let b = m128d::from_array([3.0, 4.0]);
//
let c = shuffle_abi_f64_all_m128d::<0b00>(a, b).to_array();
assert_eq!(c, [1.0, 3.0]);
//
let c = shuffle_abi_f64_all_m128d::<0b10>(a, b).to_array();
assert_eq!(c, [1.0, 4.0]);