- // MIR for `f` before JumpThreading
+ // MIR for `f` after JumpThreading
  
  fn f() -> usize {
      let mut _0: usize;
      let mut _1: isize;
      let mut _2: E<char>;
  
      bb0: {
          _2 = E::<char>::A;
          discriminant(_2) = 1;
          _1 = discriminant(_2);
          switchInt(copy _1) -> [0: bb1, otherwise: bb2];
      }
  
      bb1: {
          _0 = const 0_usize;
          return;
      }
  
      bb2: {
          _0 = const 1_usize;
          return;
      }
  }