- // MIR for `main` before ConstProp
+ // MIR for `main` after ConstProp
  
  fn main() -> () {
      let mut _0: ();
      let _1: i32;
      let mut _2: &i32;
      let _3: (i32, i32);
      let mut _4: &(i32, i32);
  
      bb0: {
          StorageLive(_1);
          StorageLive(_2);
          _4 = const _;
          _2 = &((*_4).1: i32);
          _1 = (*_2);
          StorageDead(_2);
          StorageDead(_1);
          _0 = const ();
          return;
      }
  }