tests/ui/consts/const-eval/nonnull_as_ref_ub.rs

use std::ptr::NonNull;

const NON_NULL: NonNull<u8> = unsafe { NonNull::dangling() };
const _: () = assert!(42 == *unsafe { NON_NULL.as_ref() }); //~ERROR: dangling pointer (it has no provenance)

fn main() {}