| // This should fail even without validation or Stacked Borrows. |
| //@compile-flags: -Zmiri-disable-validation -Zmiri-disable-stacked-borrows -Cdebug-assertions=no |
| use std::ptr; |
| |
| fn main() { |
| // Try many times as this might work by chance. |
| for _ in 0..20 { |
| let x = [2u16, 3, 4]; // Make it big enough so we don't get an out-of-bounds error. |
| let x = &x[0] as *const _ as *const u32; |
| // This must fail because alignment is violated: the allocation's base is not sufficiently aligned. |
| // The deref is UB even if we just put the result into a raw pointer. |
| let _x = unsafe { ptr::addr_of!(*x) }; //~ ERROR: memory with alignment 2, but alignment 4 is required |
| } |
| } |