- // MIR for `main` before DataflowConstProp
+ // MIR for `main` after DataflowConstProp
  
  fn main() -> () {
      let mut _0: ();
      let _1: i32;
      let mut _4: i32;
      let mut _5: i32;
      let mut _6: (i32, bool);
      let mut _9: i32;
      let mut _10: (i32, bool);
      scope 1 {
          debug a => _1;
          let _2: i32;
          scope 2 {
              debug b => _2;
              let _3: i32;
              scope 3 {
                  debug c => _3;
                  let _7: i32;
                  scope 4 {
                      debug d => _7;
                      let _8: i32;
                      scope 5 {
                          debug e => _8;
                      }
                  }
              }
          }
      }
  
      bb0: {
          StorageLive(_1);
          _1 = const 1_i32;
          StorageLive(_2);
          _2 = const 2_i32;
          StorageLive(_3);
          StorageLive(_4);
-         _4 = copy _1;
+         _4 = const 1_i32;
          StorageLive(_5);
-         _5 = copy _2;
-         _6 = AddWithOverflow(copy _4, copy _5);
-         assert(!move (_6.1: bool), "attempt to compute `{} + {}`, which would overflow", move _4, move _5) -> [success: bb1, unwind unreachable];
+         _5 = const 2_i32;
+         _6 = const (3_i32, false);
+         assert(!const false, "attempt to compute `{} + {}`, which would overflow", const 1_i32, const 2_i32) -> [success: bb1, unwind unreachable];
      }
  
      bb1: {
-         _3 = move (_6.0: i32);
+         _3 = const 3_i32;
          StorageDead(_5);
          StorageDead(_4);
          StorageLive(_7);
          _7 = const core::num::<impl i32>::MAX;
          StorageLive(_8);
          StorageLive(_9);
-         _9 = copy _7;
-         _10 = AddWithOverflow(copy _9, const 1_i32);
-         assert(!move (_10.1: bool), "attempt to compute `{} + {}`, which would overflow", move _9, const 1_i32) -> [success: bb2, unwind unreachable];
+         _9 = const i32::MAX;
+         _10 = const (i32::MIN, true);
+         assert(!const true, "attempt to compute `{} + {}`, which would overflow", const i32::MAX, const 1_i32) -> [success: bb2, unwind unreachable];
      }
  
      bb2: {
-         _8 = move (_10.0: i32);
+         _8 = const i32::MIN;
          StorageDead(_9);
          _0 = const ();
          StorageDead(_8);
          StorageDead(_7);
          StorageDead(_3);
          StorageDead(_2);
          StorageDead(_1);
          return;
      }
  }
+ 
+ ALLOC0 (size: 8, align: 4) { .. }
+ 
+ ALLOC1 (size: 8, align: 4) { .. }