| // Copyright 2013-2014 The Rust Project Developers. See the COPYRIGHT |
| // file at the top-level directory of this distribution and at |
| // http://rust-lang.org/COPYRIGHT. |
| // |
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or |
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license |
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your |
| // option. This file may not be copied, modified, or distributed |
| // except according to those terms. |
| |
| |
| |
| #![feature(repr_simd, platform_intrinsics)] |
| |
| use std::ops; |
| |
| #[repr(simd)] |
| #[derive(Copy, Clone)] |
| struct f32x4(f32, f32, f32, f32); |
| |
| extern "platform-intrinsic" { |
| fn simd_add<T>(x: T, y: T) -> T; |
| } |
| |
| fn add<T: ops::Add<Output=T>>(lhs: T, rhs: T) -> T { |
| lhs + rhs |
| } |
| |
| impl ops::Add for f32x4 { |
| type Output = f32x4; |
| |
| fn add(self, rhs: f32x4) -> f32x4 { |
| unsafe {simd_add(self, rhs)} |
| } |
| } |
| |
| pub fn main() { |
| let lr = f32x4(1.0f32, 2.0f32, 3.0f32, 4.0f32); |
| |
| // lame-o |
| let f32x4(x, y, z, w) = add(lr, lr); |
| assert_eq!(x, 2.0f32); |
| assert_eq!(y, 4.0f32); |
| assert_eq!(z, 6.0f32); |
| assert_eq!(w, 8.0f32); |
| } |