- // MIR for `dont_opt` before RemoveUnneededDrops
+ // MIR for `dont_opt` after RemoveUnneededDrops
  
  fn dont_opt(_1: Vec<bool>) -> () {
      let mut _0: ();
  
      bb0: {
          drop(_1) -> [return: bb1, unwind unreachable];
      }
  
      bb1: {
          return;
      }
  }