#![feature(platform_intrinsics, repr_simd)] extern "platform-intrinsic" { pub(crate) fn simd_reduce_any(x: T) -> bool; } #[repr(simd)] #[allow(non_camel_case_types)] struct i32x2(i32, i32); fn main() { unsafe { let x = i32x2(0, 1); simd_reduce_any(x); //~ERROR: must be all-0-bits or all-1-bits } }