86 lines
1.5 KiB
Rust
86 lines
1.5 KiB
Rust
// run-pass
|
|
#![allow(non_camel_case_types)]
|
|
#![feature(repr_simd, platform_intrinsics)]
|
|
|
|
use std::ops;
|
|
|
|
#[repr(simd)]
|
|
#[derive(Copy, Clone)]
|
|
struct f32x4(f32, f32, f32, f32);
|
|
|
|
#[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 "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) }
|
|
}
|
|
}
|
|
|
|
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);
|
|
}
|