mirror of https://github.com/rust-lang/rust
37 lines
1.0 KiB
Rust
37 lines
1.0 KiB
Rust
//@ build-fail
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// Test that the simd_shuffle intrinsic produces ok-ish error
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// messages when misused.
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#![feature(repr_simd, intrinsics)]
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#[repr(simd)]
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#[derive(Copy, Clone)]
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pub struct Simd<T, const N: usize>([T; N]);
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extern "rust-intrinsic" {
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fn simd_shuffle<T, I, U>(a: T, b: T, i: I) -> U;
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}
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fn main() {
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const I: Simd<u32, 2> = Simd([0; 2]);
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const I2: Simd<f32, 2> = Simd([0.; 2]);
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let v = Simd::<u32, 4>([0; 4]);
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unsafe {
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let _: Simd<u32, 2> = simd_shuffle(v, v, I);
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let _: Simd<u32, 2> = simd_shuffle(v, v, const { [0u32; 2] });
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//~^ ERROR invalid monomorphization of `simd_shuffle` intrinsic
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let _: Simd<u32, 4> = simd_shuffle(v, v, I);
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//~^ ERROR invalid monomorphization of `simd_shuffle` intrinsic
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let _: Simd<f32, 2> = simd_shuffle(v, v, I);
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//~^ ERROR invalid monomorphization of `simd_shuffle` intrinsic
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let _: Simd<u32, 2> = simd_shuffle(v, v, I2);
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//~^ ERROR invalid monomorphization of `simd_shuffle` intrinsic
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}
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}
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