rust/tests/ui/simd/intrinsic/generic-comparison.rs

// build-fail

#![feature(repr_simd, platform_intrinsics)]

#[repr(simd)]
#[derive(Copy, Clone)]
#[allow(non_camel_case_types)]
struct i32x4(i32, i32, i32, i32);
#[repr(simd)]
#[derive(Copy, Clone)]
#[allow(non_camel_case_types)]
struct i16x8(i16, i16, i16, i16,
             i16, i16, i16, i16);

extern "platform-intrinsic" {
    fn simd_eq<T, U>(x: T, y: T) -> U;
    fn simd_ne<T, U>(x: T, y: T) -> U;
    fn simd_lt<T, U>(x: T, y: T) -> U;
    fn simd_le<T, U>(x: T, y: T) -> U;
    fn simd_gt<T, U>(x: T, y: T) -> U;
    fn simd_ge<T, U>(x: T, y: T) -> U;
}

fn main() {
    let x = i32x4(0, 0, 0, 0);

    unsafe {
        simd_eq::<i32, i32>(0, 0);
        //~^ ERROR expected SIMD input type, found non-SIMD `i32`
        simd_ne::<i32, i32>(0, 0);
        //~^ ERROR expected SIMD input type, found non-SIMD `i32`
        simd_lt::<i32, i32>(0, 0);
        //~^ ERROR expected SIMD input type, found non-SIMD `i32`
        simd_le::<i32, i32>(0, 0);
        //~^ ERROR expected SIMD input type, found non-SIMD `i32`
        simd_gt::<i32, i32>(0, 0);
        //~^ ERROR expected SIMD input type, found non-SIMD `i32`
        simd_ge::<i32, i32>(0, 0);
        //~^ ERROR expected SIMD input type, found non-SIMD `i32`

        simd_eq::<_, i32>(x, x);
        //~^ ERROR expected SIMD return type, found non-SIMD `i32`
        simd_ne::<_, i32>(x, x);
        //~^ ERROR expected SIMD return type, found non-SIMD `i32`
        simd_lt::<_, i32>(x, x);
        //~^ ERROR expected SIMD return type, found non-SIMD `i32`
        simd_le::<_, i32>(x, x);
        //~^ ERROR expected SIMD return type, found non-SIMD `i32`
        simd_gt::<_, i32>(x, x);
        //~^ ERROR expected SIMD return type, found non-SIMD `i32`
        simd_ge::<_, i32>(x, x);
        //~^ ERROR expected SIMD return type, found non-SIMD `i32`

        simd_eq::<_, i16x8>(x, x);
//~^ ERROR return type with length 4 (same as input type `i32x4`), found `i16x8` with length 8
        simd_ne::<_, i16x8>(x, x);
//~^ ERROR return type with length 4 (same as input type `i32x4`), found `i16x8` with length 8
        simd_lt::<_, i16x8>(x, x);
//~^ ERROR return type with length 4 (same as input type `i32x4`), found `i16x8` with length 8
        simd_le::<_, i16x8>(x, x);
//~^ ERROR return type with length 4 (same as input type `i32x4`), found `i16x8` with length 8
        simd_gt::<_, i16x8>(x, x);
//~^ ERROR return type with length 4 (same as input type `i32x4`), found `i16x8` with length 8
        simd_ge::<_, i16x8>(x, x);
//~^ ERROR return type with length 4 (same as input type `i32x4`), found `i16x8` with length 8
    }
}