//@compile-flags: -Zmiri-disable-alignment-check fn main() { let mut x = [0u8; 20]; let x_ptr: *mut u8 = x.as_mut_ptr(); // At least one of these is definitely unaligned. unsafe { *(x_ptr as *mut u64) = 42; *(x_ptr.add(1) as *mut u64) = 42; } }