2 #![feature(repr_simd, platform_intrinsics)]
4 extern "platform-intrinsic" {
5 fn simd_shuffle<T, I, U>(a: T, b: T, i: I) -> U;
10 struct Simd<T, const N: usize>([T; N]);
13 const I1: [u32; 4] = [0, 2, 4, 6];
14 const I2: [u32; 2] = [1, 5];
15 let a = Simd::<u8, 4>([0, 1, 2, 3]);
16 let b = Simd::<u8, 4>([4, 5, 6, 7]);
18 let x: Simd<u8, 4> = simd_shuffle(a, b, I1);
19 assert_eq!(x.0, [0, 2, 4, 6]);
21 let y: Simd<u8, 2> = simd_shuffle(a, b, I2);
22 assert_eq!(y.0, [1, 5]);