| #![feature(portable_simd)] |
| use core_simd::{Simd, Swizzle}; |
| |
| #[cfg(target_arch = "wasm32")] |
| use wasm_bindgen_test::*; |
| |
| #[cfg(target_arch = "wasm32")] |
| wasm_bindgen_test_configure!(run_in_browser); |
| |
| #[test] |
| #[cfg_attr(target_arch = "wasm32", wasm_bindgen_test)] |
| fn swizzle() { |
| struct Index; |
| impl Swizzle<4, 4> for Index { |
| const INDEX: [usize; 4] = [2, 1, 3, 0]; |
| } |
| impl Swizzle<4, 2> for Index { |
| const INDEX: [usize; 2] = [1, 1]; |
| } |
| |
| let vector = Simd::from_array([2, 4, 1, 9]); |
| assert_eq!(Index::swizzle(vector).to_array(), [1, 4, 9, 2]); |
| assert_eq!(Index::swizzle(vector).to_array(), [4, 4]); |
| } |
| |
| #[test] |
| #[cfg_attr(target_arch = "wasm32", wasm_bindgen_test)] |
| fn reverse() { |
| let a = Simd::from_array([1, 2, 3, 4]); |
| assert_eq!(a.reverse().to_array(), [4, 3, 2, 1]); |
| } |
| |
| #[test] |
| #[cfg_attr(target_arch = "wasm32", wasm_bindgen_test)] |
| fn rotate() { |
| let a = Simd::from_array([1, 2, 3, 4]); |
| assert_eq!(a.rotate_lanes_left::<0>().to_array(), [1, 2, 3, 4]); |
| assert_eq!(a.rotate_lanes_left::<1>().to_array(), [2, 3, 4, 1]); |
| assert_eq!(a.rotate_lanes_left::<2>().to_array(), [3, 4, 1, 2]); |
| assert_eq!(a.rotate_lanes_left::<3>().to_array(), [4, 1, 2, 3]); |
| assert_eq!(a.rotate_lanes_left::<4>().to_array(), [1, 2, 3, 4]); |
| assert_eq!(a.rotate_lanes_left::<5>().to_array(), [2, 3, 4, 1]); |
| assert_eq!(a.rotate_lanes_right::<0>().to_array(), [1, 2, 3, 4]); |
| assert_eq!(a.rotate_lanes_right::<1>().to_array(), [4, 1, 2, 3]); |
| assert_eq!(a.rotate_lanes_right::<2>().to_array(), [3, 4, 1, 2]); |
| assert_eq!(a.rotate_lanes_right::<3>().to_array(), [2, 3, 4, 1]); |
| assert_eq!(a.rotate_lanes_right::<4>().to_array(), [1, 2, 3, 4]); |
| assert_eq!(a.rotate_lanes_right::<5>().to_array(), [4, 1, 2, 3]); |
| } |
| |
| #[test] |
| #[cfg_attr(target_arch = "wasm32", wasm_bindgen_test)] |
| fn interleave() { |
| let a = Simd::from_array([0, 1, 2, 3, 4, 5, 6, 7]); |
| let b = Simd::from_array([8, 9, 10, 11, 12, 13, 14, 15]); |
| let (lo, hi) = a.interleave(b); |
| assert_eq!(lo.to_array(), [0, 8, 1, 9, 2, 10, 3, 11]); |
| assert_eq!(hi.to_array(), [4, 12, 5, 13, 6, 14, 7, 15]); |
| let (even, odd) = lo.deinterleave(hi); |
| assert_eq!(even, a); |
| assert_eq!(odd, b); |
| } |
