25 lines
586 B
Rust
25 lines
586 B
Rust
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//run-pass
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#![feature(repr_simd, platform_intrinsics)]
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extern "platform-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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#[derive(Copy, Clone)]
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#[repr(simd)]
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struct Simd<T, const N: usize>([T; N]);
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fn main() {
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const I1: [u32; 4] = [0, 2, 4, 6];
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const I2: [u32; 2] = [1, 5];
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let a = Simd::<u8, 4>([0, 1, 2, 3]);
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let b = Simd::<u8, 4>([4, 5, 6, 7]);
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unsafe {
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let x: Simd<u8, 4> = simd_shuffle(a, b, I1);
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assert_eq!(x.0, [0, 2, 4, 6]);
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let y: Simd<u8, 2> = simd_shuffle(a, b, I2);
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assert_eq!(y.0, [1, 5]);
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}
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}
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