--- /dev/null
+// This should fail even without validation or Stacked Borrows.
+// compile-flags: -Zmiri-disable-validation -Zmiri-disable-stacked-borrows
+
+fn main() {
+ // Make sure we notice when a u16 is loaded at offset 1 into a u8 allocation.
+ // (This would be missed if u8 allocations are *always* at odd addresses.)
+ for _ in 0..10 { // Try many times as this might work by chance.
+ let x = [0u8; 4];
+ let ptr = x.as_ptr().wrapping_offset(1).cast::<u16>();
+ let _val = unsafe { *ptr }; //~ERROR but alignment
+ }
+}