27 lines
843 B
Rust
27 lines
843 B
Rust
//@ run-pass
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#![feature(repr_simd, core_intrinsics)]
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use std::intrinsics::simd::{simd_masked_load, simd_masked_store};
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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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unsafe {
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let a = Simd::<u8, 4>([0, 1, 2, 3]);
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let b_src = [4u8, 5, 6, 7];
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let b_default = Simd::<u8, 4>([9; 4]);
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let b: Simd<u8, 4> =
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simd_masked_load(Simd::<i8, 4>([-1, 0, -1, -1]), b_src.as_ptr(), b_default);
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assert_eq!(&b.0, &[4, 9, 6, 7]);
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let mut output = [u8::MAX; 5];
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simd_masked_store(Simd::<i8, 4>([-1, -1, -1, 0]), output.as_mut_ptr(), a);
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assert_eq!(&output, &[0, 1, 2, u8::MAX, u8::MAX]);
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simd_masked_store(Simd::<i8, 4>([0, -1, -1, 0]), output[1..].as_mut_ptr(), b);
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assert_eq!(&output, &[0, 1, 9, 6, u8::MAX]);
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}
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}
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