- // MIR for `unreachable_ref` before GVN
+ // MIR for `unreachable_ref` after GVN
  
  fn unreachable_ref() -> ! {
      let mut _0: !;
      let _1: &Never;
      scope 1 {
          debug x => _1;
      }
  
      bb0: {
          StorageLive(_1);
-         _1 = const 1_usize as &Never (Transmute);
+         _1 = const {0x1 as &Never};
          unreachable;
      }
  }