- // MIR for `invalid_bool` before GVN
+ // MIR for `invalid_bool` after GVN
  
  fn invalid_bool() -> bool {
      let mut _0: bool;
      scope 1 {
      }
  
      bb0: {
-         _0 = const -1_i8 as bool (Transmute);
+         _0 = const {transmute(0xff): bool};
          return;
      }
  }