25 lines
564 B
Rust
25 lines
564 B
Rust
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// run-pass
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// compile-flags: -Zunleash-the-miri-inside-of-you
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#![feature(repr_simd)]
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#![feature(platform_intrinsics)]
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#![allow(non_camel_case_types)]
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#[repr(simd)] struct i8x1(i8);
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extern "platform-intrinsic" {
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fn simd_insert<T, U>(x: T, idx: u32, val: U) -> T;
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fn simd_extract<T, U>(x: T, idx: u32) -> U;
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}
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const fn foo(x: i8x1) -> i8 {
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unsafe { simd_insert(x, 0_u32, 42_i8) }.0
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}
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fn main() {
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const V: i8x1 = i8x1(13);
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const X: i8 = foo(V);
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const Y: i8 = unsafe { simd_extract(V, 0) };
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assert_eq!(X, 42);
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assert_eq!(Y, 13);
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}
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