mirror of https://github.com/rust-lang/rust
35 lines
638 B
Rust
35 lines
638 B
Rust
//@ run-pass
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#![allow(dead_code)]
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//@ pretty-expanded FIXME #23616
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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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struct S([i32; 4]);
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#[repr(simd)]
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#[derive(Copy, Clone)]
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struct T<const N: usize>([i32; N]);
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extern "rust-intrinsic" {
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fn simd_insert<T, E>(x: T, idx: u32, y: E) -> T;
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fn simd_extract<T, E>(x: T, idx: u32) -> E;
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}
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pub fn main() {
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let mut s = S([0; 4]);
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unsafe {
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s = simd_insert(s, 3, 3);
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assert_eq!(3, simd_extract(s, 3));
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}
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let mut t = T::<4>([0; 4]);
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unsafe {
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t = simd_insert(t, 3, 3);
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assert_eq!(3, simd_extract(t, 3));
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}
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}
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