- // MIR for `unreachable_box` before ConstProp
+ // MIR for `unreachable_box` after ConstProp
  
  fn unreachable_box() -> ! {
      let mut _0: !;
      let _1: std::boxed::Box<Never>;
      scope 1 {
          debug x => _1;
      }
      scope 2 {
      }
  
      bb0: {
          StorageLive(_1);
-         _1 = const 1_usize as std::boxed::Box<Never> (Transmute);
+         _1 = const Box::<Never>(Unique::<Never> {{ pointer: NonNull::<Never> {{ pointer: {0x1 as *const Never} }}, _marker: PhantomData::<Never> }}, std::alloc::Global);
          unreachable;
      }
  }