- // MIR for `foo` before ConstProp
+ // MIR for `foo` after ConstProp
  
  fn foo() -> () {
      let mut _0: ();                      // return place in scope 0 at $DIR/const_prop_miscompile.rs:4:10: 4:10
      let mut _1: (i32,);                  // in scope 0 at $DIR/const_prop_miscompile.rs:5:9: 5:14
      let mut _2: &mut i32;                // in scope 0 at $DIR/const_prop_miscompile.rs:6:6: 6:14
      let mut _4: i32;                     // in scope 0 at $DIR/const_prop_miscompile.rs:7:13: 7:20
      scope 1 {
          debug u => _1;                   // in scope 1 at $DIR/const_prop_miscompile.rs:5:9: 5:14
          let _3: bool;                    // in scope 1 at $DIR/const_prop_miscompile.rs:7:9: 7:10
          scope 2 {
              debug y => _3;               // in scope 2 at $DIR/const_prop_miscompile.rs:7:9: 7:10
          }
      }
  
      bb0: {
          StorageLive(_1);                 // scope 0 at $DIR/const_prop_miscompile.rs:5:9: 5:14
-         _1 = (const 1_i32,);             // scope 0 at $DIR/const_prop_miscompile.rs:5:17: 5:21
+         _1 = const (1_i32,);             // scope 0 at $DIR/const_prop_miscompile.rs:5:17: 5:21
                                           // ty::Const
-                                          // + ty: i32
+                                          // + ty: (i32,)
                                           // + val: Value(Scalar(0x00000001))
                                           // mir::Constant
-                                          // + span: $DIR/const_prop_miscompile.rs:5:18: 5:19
-                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000001)) }
+                                          // + span: $DIR/const_prop_miscompile.rs:5:17: 5:21
+                                          // + literal: Const { ty: (i32,), val: Value(Scalar(0x00000001)) }
          StorageLive(_2);                 // scope 1 at $DIR/const_prop_miscompile.rs:6:6: 6:14
          _2 = &mut (_1.0: i32);           // scope 1 at $DIR/const_prop_miscompile.rs:6:6: 6:14
          (*_2) = const 5_i32;             // scope 1 at $DIR/const_prop_miscompile.rs:6:5: 6:18
                                           // ty::Const
                                           // + ty: i32
                                           // + val: Value(Scalar(0x00000005))
                                           // mir::Constant
                                           // + span: $DIR/const_prop_miscompile.rs:6:17: 6:18
                                           // + literal: Const { ty: i32, val: Value(Scalar(0x00000005)) }
          StorageDead(_2);                 // scope 1 at $DIR/const_prop_miscompile.rs:6:18: 6:19
          StorageLive(_3);                 // scope 1 at $DIR/const_prop_miscompile.rs:7:9: 7:10
          StorageLive(_4);                 // scope 1 at $DIR/const_prop_miscompile.rs:7:13: 7:20
          _4 = (_1.0: i32);                // scope 1 at $DIR/const_prop_miscompile.rs:7:15: 7:18
          _3 = Eq(move _4, const 5_i32);   // scope 1 at $DIR/const_prop_miscompile.rs:7:13: 7:25
                                           // ty::Const
                                           // + ty: i32
                                           // + val: Value(Scalar(0x00000005))
                                           // mir::Constant
                                           // + span: $DIR/const_prop_miscompile.rs:7:24: 7:25
                                           // + literal: Const { ty: i32, val: Value(Scalar(0x00000005)) }
          StorageDead(_4);                 // scope 1 at $DIR/const_prop_miscompile.rs:7:24: 7:25
          _0 = const ();                   // scope 0 at $DIR/const_prop_miscompile.rs:4:10: 8:2
                                           // ty::Const
                                           // + ty: ()
                                           // + val: Value(Scalar(<ZST>))
                                           // mir::Constant
                                           // + span: $DIR/const_prop_miscompile.rs:4:10: 8:2
                                           // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
          StorageDead(_3);                 // scope 1 at $DIR/const_prop_miscompile.rs:8:1: 8:2
          StorageDead(_1);                 // scope 0 at $DIR/const_prop_miscompile.rs:8:1: 8:2
          return;                          // scope 0 at $DIR/const_prop_miscompile.rs:8:2: 8:2
      }
  }