| // run-pass |
| // ignore-emscripten |
| |
| #![allow(non_camel_case_types)] |
| #![feature(repr_simd, platform_intrinsics)] |
| |
| #[repr(simd)] |
| #[derive(Copy, Clone, PartialEq, Debug)] |
| struct u32x4(pub u32, pub u32, pub u32, pub u32); |
| |
| #[repr(simd)] |
| #[derive(Copy, Clone, PartialEq, Debug)] |
| struct i32x4(pub i32, pub i32, pub i32, pub i32); |
| |
| extern "platform-intrinsic" { |
| fn simd_saturating_add<T>(x: T, y: T) -> T; |
| fn simd_saturating_sub<T>(x: T, y: T) -> T; |
| } |
| |
| fn main() { |
| // unsigned |
| { |
| const M: u32 = u32::MAX; |
| |
| let a = u32x4(1, 2, 3, 4); |
| let b = u32x4(2, 4, 6, 8); |
| let m = u32x4(M, M, M, M); |
| let m1 = u32x4(M - 1, M - 1, M - 1, M - 1); |
| let z = u32x4(0, 0, 0, 0); |
| |
| unsafe { |
| assert_eq!(simd_saturating_add(z, z), z); |
| assert_eq!(simd_saturating_add(z, a), a); |
| assert_eq!(simd_saturating_add(b, z), b); |
| assert_eq!(simd_saturating_add(a, a), b); |
| assert_eq!(simd_saturating_add(a, m), m); |
| assert_eq!(simd_saturating_add(m, b), m); |
| assert_eq!(simd_saturating_add(m1, a), m); |
| |
| assert_eq!(simd_saturating_sub(b, z), b); |
| assert_eq!(simd_saturating_sub(b, a), a); |
| assert_eq!(simd_saturating_sub(a, a), z); |
| assert_eq!(simd_saturating_sub(a, b), z); |
| assert_eq!(simd_saturating_sub(a, m1), z); |
| assert_eq!(simd_saturating_sub(b, m1), z); |
| } |
| } |
| |
| // signed |
| { |
| const MIN: i32 = i32::MIN; |
| const MAX: i32 = i32::MAX; |
| |
| let a = i32x4(1, 2, 3, 4); |
| let b = i32x4(2, 4, 6, 8); |
| let c = i32x4(-1, -2, -3, -4); |
| let d = i32x4(-2, -4, -6, -8); |
| |
| let max = i32x4(MAX, MAX, MAX, MAX); |
| let max1 = i32x4(MAX - 1, MAX - 1, MAX - 1, MAX - 1); |
| let min = i32x4(MIN, MIN, MIN, MIN); |
| let min1 = i32x4(MIN + 1, MIN + 1, MIN + 1, MIN + 1); |
| |
| let z = i32x4(0, 0, 0, 0); |
| |
| unsafe { |
| assert_eq!(simd_saturating_add(z, z), z); |
| assert_eq!(simd_saturating_add(z, a), a); |
| assert_eq!(simd_saturating_add(b, z), b); |
| assert_eq!(simd_saturating_add(a, a), b); |
| assert_eq!(simd_saturating_add(a, max), max); |
| assert_eq!(simd_saturating_add(max, b), max); |
| assert_eq!(simd_saturating_add(max1, a), max); |
| assert_eq!(simd_saturating_add(min1, z), min1); |
| assert_eq!(simd_saturating_add(min, z), min); |
| assert_eq!(simd_saturating_add(min1, c), min); |
| assert_eq!(simd_saturating_add(min, c), min); |
| assert_eq!(simd_saturating_add(min1, d), min); |
| assert_eq!(simd_saturating_add(min, d), min); |
| |
| assert_eq!(simd_saturating_sub(b, z), b); |
| assert_eq!(simd_saturating_sub(b, a), a); |
| assert_eq!(simd_saturating_sub(a, a), z); |
| assert_eq!(simd_saturating_sub(a, b), c); |
| assert_eq!(simd_saturating_sub(z, max), min1); |
| assert_eq!(simd_saturating_sub(min1, z), min1); |
| assert_eq!(simd_saturating_sub(min1, a), min); |
| assert_eq!(simd_saturating_sub(min1, b), min); |
| } |
| } |
| } |
