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