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//@ run-pass
#![allow(non_camel_case_types)]
#![feature(repr_simd, intrinsics)]
use std::ops;
#[repr(simd)]
#[derive(Copy, Clone)]
struct f32x4([f32; 4]);
#[repr(simd)]
#[derive(Copy, Clone)]
struct A<const N: usize>([f32; N]);
#[repr(simd)]
#[derive(Copy, Clone)]
struct B<T>([T; 4]);
#[repr(simd)]
#[derive(Copy, Clone)]
struct C<T, const N: usize>([T; N]);
extern "rust-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) }
}
}
impl ops::Add for A<4> {
type Output = Self;
fn add(self, rhs: Self) -> Self {
unsafe { simd_add(self, rhs) }
}
}
impl ops::Add for B<f32> {
type Output = Self;
fn add(self, rhs: Self) -> Self {
unsafe { simd_add(self, rhs) }
}
}
impl ops::Add for C<f32, 4> {
type Output = Self;
fn add(self, rhs: Self) -> Self {
unsafe { simd_add(self, rhs) }
}
}
pub fn main() {
let x = [1.0f32, 2.0f32, 3.0f32, 4.0f32];
let y = [2.0f32, 4.0f32, 6.0f32, 8.0f32];
// lame-o
let a = f32x4([1.0f32, 2.0f32, 3.0f32, 4.0f32]);
let f32x4([a0, a1, a2, a3]) = add(a, a);
assert_eq!(a0, 2.0f32);
assert_eq!(a1, 4.0f32);
assert_eq!(a2, 6.0f32);
assert_eq!(a3, 8.0f32);
let a = A(x);
assert_eq!(add(a, a).0, y);
let b = B(x);
assert_eq!(add(b, b).0, y);
let c = C(x);
assert_eq!(add(c, c).0, y);
}
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