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- // MIR for `main` before ConstProp
+ // MIR for `main` after ConstProp
  
  fn main() -> () {
      let mut _0: ();
      let _1: usize;
      let mut _2: *const i32;
      let _3: &i32;
      let _4: ();
      let mut _5: usize;
      scope 1 {
          debug x => _1;
      }
  
      bb0: {
          StorageLive(_1);
          StorageLive(_2);
          StorageLive(_3);
          _3 = const _;
          _2 = &raw const (*_3);
          _1 = move _2 as usize (PointerExposeAddress);
          StorageDead(_2);
          StorageDead(_3);
          StorageLive(_4);
          StorageLive(_5);
          _5 = _1;
          _4 = read(move _5) -> [return: bb1, unwind continue];
      }
  
      bb1: {
          StorageDead(_5);
          StorageDead(_4);
          _0 = const ();
          StorageDead(_1);
          return;
      }
  }