- // MIR for `reference_propagation_mut` before ReferencePropagation
+ // MIR for `reference_propagation_mut` after ReferencePropagation
  
  fn reference_propagation_mut(_1: &mut T, _2: &mut T) -> () {
      debug single => _1;                  // in scope 0 at $DIR/reference_prop.rs:+0:43: +0:49
      debug multiple => _2;                // in scope 0 at $DIR/reference_prop.rs:+0:62: +0:74
      let mut _0: ();                      // return place in scope 0 at $DIR/reference_prop.rs:+0:87: +0:87
      let _3: ();                          // in scope 0 at $DIR/reference_prop.rs:+2:5: +7:6
      let mut _4: usize;                   // in scope 0 at $DIR/reference_prop.rs:+3:13: +3:18
      let _7: ();                          // in scope 0 at $DIR/reference_prop.rs:+6:9: +6:19
      let mut _8: ();                      // in scope 0 at $DIR/reference_prop.rs:+6:16: +6:18
      let _9: ();                          // in scope 0 at $DIR/reference_prop.rs:+10:5: +18:6
      let mut _10: usize;                  // in scope 0 at $DIR/reference_prop.rs:+11:13: +11:18
      let mut _13: &mut usize;             // in scope 0 at $DIR/reference_prop.rs:+14:13: +14:20
      let mut _14: &mut usize;             // in scope 0 at $DIR/reference_prop.rs:+14:13: +14:20
      let _16: ();                         // in scope 0 at $DIR/reference_prop.rs:+17:9: +17:19
      let mut _17: ();                     // in scope 0 at $DIR/reference_prop.rs:+17:16: +17:18
      let _18: ();                         // in scope 0 at $DIR/reference_prop.rs:+21:5: +27:6
      let mut _19: usize;                  // in scope 0 at $DIR/reference_prop.rs:+22:13: +22:18
      let _23: ();                         // in scope 0 at $DIR/reference_prop.rs:+26:9: +26:18
      let mut _24: &&mut usize;            // in scope 0 at $DIR/reference_prop.rs:+26:16: +26:17
      let _25: ();                         // in scope 0 at $DIR/reference_prop.rs:+30:5: +36:6
      let mut _26: usize;                  // in scope 0 at $DIR/reference_prop.rs:+31:13: +31:18
      let _30: ();                         // in scope 0 at $DIR/reference_prop.rs:+35:9: +35:18
      let mut _31: *mut &mut usize;        // in scope 0 at $DIR/reference_prop.rs:+35:16: +35:17
      let _32: ();                         // in scope 0 at $DIR/reference_prop.rs:+39:5: +44:6
      let mut _33: usize;                  // in scope 0 at $DIR/reference_prop.rs:+40:13: +40:18
      let _36: ();                         // in scope 0 at $DIR/reference_prop.rs:+43:9: +43:18
      let mut _37: &mut usize;             // in scope 0 at $DIR/reference_prop.rs:+43:16: +43:17
      let _38: ();                         // in scope 0 at $DIR/reference_prop.rs:+47:5: +57:6
      let mut _39: usize;                  // in scope 0 at $DIR/reference_prop.rs:+48:13: +48:18
      let _45: ();                         // in scope 0 at $DIR/reference_prop.rs:+56:9: +56:19
      let mut _46: &mut usize;             // in scope 0 at $DIR/reference_prop.rs:+56:16: +56:18
      let _47: ();                         // in scope 0 at $DIR/reference_prop.rs:+60:5: +64:6
      let _48: &mut T;                     // in scope 0 at $DIR/reference_prop.rs:+61:13: +61:14
      let _50: ();                         // in scope 0 at $DIR/reference_prop.rs:+63:9: +63:19
      let mut _51: ();                     // in scope 0 at $DIR/reference_prop.rs:+63:16: +63:18
      let _52: ();                         // in scope 0 at $DIR/reference_prop.rs:+67:5: +72:6
      let _53: &mut T;                     // in scope 0 at $DIR/reference_prop.rs:+68:13: +68:14
      let mut _54: &mut T;                 // in scope 0 at $DIR/reference_prop.rs:+69:20: +69:32
      let mut _55: &mut T;                 // in scope 0 at $DIR/reference_prop.rs:+69:20: +69:32
      let _57: ();                         // in scope 0 at $DIR/reference_prop.rs:+71:9: +71:19
      let mut _58: ();                     // in scope 0 at $DIR/reference_prop.rs:+71:16: +71:18
      let _59: ();                         // in scope 0 at $DIR/reference_prop.rs:+75:5: +81:6
      let mut _60: usize;                  // in scope 0 at $DIR/reference_prop.rs:+76:13: +76:18
      let _64: ();                         // in scope 0 at $DIR/reference_prop.rs:+80:9: +80:19
      let mut _65: ();                     // in scope 0 at $DIR/reference_prop.rs:+80:16: +80:18
      let mut _66: usize;                  // in scope 0 at $DIR/reference_prop.rs:+85:13: +85:18
      let _70: ();                         // in scope 0 at $DIR/reference_prop.rs:+89:9: +89:19
      let mut _71: ();                     // in scope 0 at $DIR/reference_prop.rs:+89:16: +89:18
      scope 1 {
          debug a => _4;                   // in scope 1 at $DIR/reference_prop.rs:+3:13: +3:18
          let _5: &mut usize;              // in scope 1 at $DIR/reference_prop.rs:+4:13: +4:14
          scope 2 {
-             debug b => _5;               // in scope 2 at $DIR/reference_prop.rs:+4:13: +4:14
+             debug b => &_4;              // in scope 2 at $DIR/reference_prop.rs:+4:13: +4:14
              let _6: usize;               // in scope 2 at $DIR/reference_prop.rs:+5:13: +5:14
              scope 3 {
                  debug c => _6;           // in scope 3 at $DIR/reference_prop.rs:+5:13: +5:14
              }
          }
      }
      scope 4 {
          debug a => _10;                  // in scope 4 at $DIR/reference_prop.rs:+11:13: +11:18
          let mut _11: usize;              // in scope 4 at $DIR/reference_prop.rs:+12:13: +12:19
          scope 5 {
              debug a2 => _11;             // in scope 5 at $DIR/reference_prop.rs:+12:13: +12:19
              let mut _12: &mut usize;     // in scope 5 at $DIR/reference_prop.rs:+13:13: +13:18
              scope 6 {
                  debug b => _12;          // in scope 6 at $DIR/reference_prop.rs:+13:13: +13:18
                  let _15: usize;          // in scope 6 at $DIR/reference_prop.rs:+16:13: +16:14
                  scope 7 {
                      debug c => _15;      // in scope 7 at $DIR/reference_prop.rs:+16:13: +16:14
                  }
              }
          }
      }
      scope 8 {
          debug a => _19;                  // in scope 8 at $DIR/reference_prop.rs:+22:13: +22:18
          let _20: &mut usize;             // in scope 8 at $DIR/reference_prop.rs:+23:13: +23:14
          scope 9 {
              debug b => _20;              // in scope 9 at $DIR/reference_prop.rs:+23:13: +23:14
              let _21: &&mut usize;        // in scope 9 at $DIR/reference_prop.rs:+24:13: +24:14
              scope 10 {
                  debug d => _21;          // in scope 10 at $DIR/reference_prop.rs:+24:13: +24:14
                  let _22: usize;          // in scope 10 at $DIR/reference_prop.rs:+25:13: +25:14
                  scope 11 {
                      debug c => _22;      // in scope 11 at $DIR/reference_prop.rs:+25:13: +25:14
                  }
              }
          }
      }
      scope 12 {
          debug a => _26;                  // in scope 12 at $DIR/reference_prop.rs:+31:13: +31:18
          let mut _27: &mut usize;         // in scope 12 at $DIR/reference_prop.rs:+32:13: +32:18
          scope 13 {
              debug b => _27;              // in scope 13 at $DIR/reference_prop.rs:+32:13: +32:18
              let _28: *mut &mut usize;    // in scope 13 at $DIR/reference_prop.rs:+33:13: +33:14
              scope 14 {
                  debug d => _28;          // in scope 14 at $DIR/reference_prop.rs:+33:13: +33:14
                  let _29: usize;          // in scope 14 at $DIR/reference_prop.rs:+34:13: +34:14
                  scope 15 {
                      debug c => _29;      // in scope 15 at $DIR/reference_prop.rs:+34:13: +34:14
                  }
              }
          }
      }
      scope 16 {
          debug a => _33;                  // in scope 16 at $DIR/reference_prop.rs:+40:13: +40:18
          let _34: &mut usize;             // in scope 16 at $DIR/reference_prop.rs:+41:13: +41:14
          scope 17 {
              debug b => _34;              // in scope 17 at $DIR/reference_prop.rs:+41:13: +41:14
              let _35: usize;              // in scope 17 at $DIR/reference_prop.rs:+42:13: +42:14
              scope 18 {
                  debug c => _35;          // in scope 18 at $DIR/reference_prop.rs:+42:13: +42:14
              }
          }
      }
      scope 19 {
          debug a => _39;                  // in scope 19 at $DIR/reference_prop.rs:+48:13: +48:18
          let _40: &mut usize;             // in scope 19 at $DIR/reference_prop.rs:+49:13: +49:15
          scope 20 {
              debug b1 => _40;             // in scope 20 at $DIR/reference_prop.rs:+49:13: +49:15
              let _41: usize;              // in scope 20 at $DIR/reference_prop.rs:+50:13: +50:14
              scope 21 {
                  debug c => _41;          // in scope 21 at $DIR/reference_prop.rs:+50:13: +50:14
                  let _42: &mut usize;     // in scope 21 at $DIR/reference_prop.rs:+51:13: +51:15
                  scope 22 {
                      debug b2 => _42;     // in scope 22 at $DIR/reference_prop.rs:+51:13: +51:15
                      let _43: usize;      // in scope 22 at $DIR/reference_prop.rs:+52:13: +52:15
                      scope 23 {
                          debug c2 => _43; // in scope 23 at $DIR/reference_prop.rs:+52:13: +52:15
                          let _44: &mut usize; // in scope 23 at $DIR/reference_prop.rs:+53:13: +53:15
                          scope 24 {
                              debug b3 => _44; // in scope 24 at $DIR/reference_prop.rs:+53:13: +53:15
                          }
                      }
                  }
              }
          }
      }
      scope 25 {
-         debug a => _48;                  // in scope 25 at $DIR/reference_prop.rs:+61:13: +61:14
+         debug a => _1;                   // in scope 25 at $DIR/reference_prop.rs:+61:13: +61:14
          let _49: T;                      // in scope 25 at $DIR/reference_prop.rs:+62:13: +62:14
          scope 26 {
              debug b => _49;              // in scope 26 at $DIR/reference_prop.rs:+62:13: +62:14
          }
      }
      scope 27 {
          debug a => _53;                  // in scope 27 at $DIR/reference_prop.rs:+68:13: +68:14
          let _56: T;                      // in scope 27 at $DIR/reference_prop.rs:+70:13: +70:14
          scope 28 {
              debug b => _56;              // in scope 28 at $DIR/reference_prop.rs:+70:13: +70:14
          }
      }
      scope 29 {
          debug a => _60;                  // in scope 29 at $DIR/reference_prop.rs:+76:13: +76:18
          let _61: &mut usize;             // in scope 29 at $DIR/reference_prop.rs:+77:13: +77:14
          scope 30 {
-             debug b => _61;              // in scope 30 at $DIR/reference_prop.rs:+77:13: +77:14
+             debug b => &_60;             // in scope 30 at $DIR/reference_prop.rs:+77:13: +77:14
              let _62: &&mut usize;        // in scope 30 at $DIR/reference_prop.rs:+78:13: +78:14
              scope 31 {
-                 debug d => _62;          // in scope 31 at $DIR/reference_prop.rs:+78:13: +78:14
+                 debug d => &&_60;        // in scope 31 at $DIR/reference_prop.rs:+78:13: +78:14
                  let _63: usize;          // in scope 31 at $DIR/reference_prop.rs:+79:13: +79:14
                  scope 32 {
                      debug c => _63;      // in scope 32 at $DIR/reference_prop.rs:+79:13: +79:14
                  }
              }
          }
      }
      scope 33 {
          debug a => _66;                  // in scope 33 at $DIR/reference_prop.rs:+85:13: +85:18
          let mut _67: &mut usize;         // in scope 33 at $DIR/reference_prop.rs:+86:13: +86:18
          scope 34 {
-             debug b => _67;              // in scope 34 at $DIR/reference_prop.rs:+86:13: +86:18
+             debug b => &_66;             // in scope 34 at $DIR/reference_prop.rs:+86:13: +86:18
              let _68: &mut &mut usize;    // in scope 34 at $DIR/reference_prop.rs:+87:13: +87:14
              scope 35 {
-                 debug d => _68;          // in scope 35 at $DIR/reference_prop.rs:+87:13: +87:14
+                 debug d => &&_66;        // in scope 35 at $DIR/reference_prop.rs:+87:13: +87:14
                  let _69: usize;          // in scope 35 at $DIR/reference_prop.rs:+88:13: +88:14
                  scope 36 {
                      debug c => _69;      // in scope 36 at $DIR/reference_prop.rs:+88:13: +88:14
                  }
              }
          }
      }
  
      bb0: {
-         StorageLive(_3);                 // scope 0 at $DIR/reference_prop.rs:+2:5: +7:6
          StorageLive(_4);                 // scope 0 at $DIR/reference_prop.rs:+3:13: +3:18
          _4 = const 5_usize;              // scope 0 at $DIR/reference_prop.rs:+3:21: +3:28
-         StorageLive(_5);                 // scope 1 at $DIR/reference_prop.rs:+4:13: +4:14
-         _5 = &mut _4;                    // scope 1 at $DIR/reference_prop.rs:+4:17: +4:23
          StorageLive(_6);                 // scope 2 at $DIR/reference_prop.rs:+5:13: +5:14
-         _6 = (*_5);                      // scope 2 at $DIR/reference_prop.rs:+5:17: +5:19
+         _6 = _4;                         // scope 2 at $DIR/reference_prop.rs:+5:17: +5:19
          StorageLive(_7);                 // scope 3 at $DIR/reference_prop.rs:+6:9: +6:19
          StorageLive(_8);                 // scope 3 at $DIR/reference_prop.rs:+6:16: +6:18
          _8 = ();                         // scope 3 at $DIR/reference_prop.rs:+6:16: +6:18
          _7 = opaque::<()>(move _8) -> bb1; // scope 3 at $DIR/reference_prop.rs:+6:9: +6:19
                                           // mir::Constant
                                           // + span: $DIR/reference_prop.rs:109:9: 109:15
                                           // + literal: Const { ty: fn(()) {opaque::<()>}, val: Value(<ZST>) }
      }
  
      bb1: {
          StorageDead(_8);                 // scope 3 at $DIR/reference_prop.rs:+6:18: +6:19
          StorageDead(_7);                 // scope 3 at $DIR/reference_prop.rs:+6:19: +6:20
-         _3 = const ();                   // scope 0 at $DIR/reference_prop.rs:+2:5: +7:6
          StorageDead(_6);                 // scope 2 at $DIR/reference_prop.rs:+7:5: +7:6
-         StorageDead(_5);                 // scope 1 at $DIR/reference_prop.rs:+7:5: +7:6
          StorageDead(_4);                 // scope 0 at $DIR/reference_prop.rs:+7:5: +7:6
-         StorageDead(_3);                 // scope 0 at $DIR/reference_prop.rs:+7:5: +7:6
-         StorageLive(_9);                 // scope 0 at $DIR/reference_prop.rs:+10:5: +18:6
          StorageLive(_10);                // scope 0 at $DIR/reference_prop.rs:+11:13: +11:18
          _10 = const 5_usize;             // scope 0 at $DIR/reference_prop.rs:+11:21: +11:28
          StorageLive(_11);                // scope 4 at $DIR/reference_prop.rs:+12:13: +12:19
          _11 = const 7_usize;             // scope 4 at $DIR/reference_prop.rs:+12:22: +12:29
          StorageLive(_12);                // scope 5 at $DIR/reference_prop.rs:+13:13: +13:18
          _12 = &mut _10;                  // scope 5 at $DIR/reference_prop.rs:+13:21: +13:27
          StorageLive(_13);                // scope 6 at $DIR/reference_prop.rs:+14:13: +14:20
-         StorageLive(_14);                // scope 6 at $DIR/reference_prop.rs:+14:13: +14:20
-         _14 = &mut _11;                  // scope 6 at $DIR/reference_prop.rs:+14:13: +14:20
-         _13 = &mut (*_14);               // scope 6 at $DIR/reference_prop.rs:+14:13: +14:20
+         _13 = &mut _11;                  // scope 6 at $DIR/reference_prop.rs:+14:13: +14:20
          _12 = move _13;                  // scope 6 at $DIR/reference_prop.rs:+14:9: +14:20
          StorageDead(_13);                // scope 6 at $DIR/reference_prop.rs:+14:19: +14:20
-         StorageDead(_14);                // scope 6 at $DIR/reference_prop.rs:+14:20: +14:21
          StorageLive(_15);                // scope 6 at $DIR/reference_prop.rs:+16:13: +16:14
          _15 = (*_12);                    // scope 6 at $DIR/reference_prop.rs:+16:17: +16:19
          StorageLive(_16);                // scope 7 at $DIR/reference_prop.rs:+17:9: +17:19
          StorageLive(_17);                // scope 7 at $DIR/reference_prop.rs:+17:16: +17:18
          _17 = ();                        // scope 7 at $DIR/reference_prop.rs:+17:16: +17:18
          _16 = opaque::<()>(move _17) -> bb2; // scope 7 at $DIR/reference_prop.rs:+17:9: +17:19
                                           // mir::Constant
                                           // + span: $DIR/reference_prop.rs:120:9: 120:15
                                           // + literal: Const { ty: fn(()) {opaque::<()>}, val: Value(<ZST>) }
      }
  
      bb2: {
          StorageDead(_17);                // scope 7 at $DIR/reference_prop.rs:+17:18: +17:19
          StorageDead(_16);                // scope 7 at $DIR/reference_prop.rs:+17:19: +17:20
-         _9 = const ();                   // scope 0 at $DIR/reference_prop.rs:+10:5: +18:6
          StorageDead(_15);                // scope 6 at $DIR/reference_prop.rs:+18:5: +18:6
          StorageDead(_12);                // scope 5 at $DIR/reference_prop.rs:+18:5: +18:6
          StorageDead(_11);                // scope 4 at $DIR/reference_prop.rs:+18:5: +18:6
          StorageDead(_10);                // scope 0 at $DIR/reference_prop.rs:+18:5: +18:6
-         StorageDead(_9);                 // scope 0 at $DIR/reference_prop.rs:+18:5: +18:6
-         StorageLive(_18);                // scope 0 at $DIR/reference_prop.rs:+21:5: +27:6
          StorageLive(_19);                // scope 0 at $DIR/reference_prop.rs:+22:13: +22:18
          _19 = const 5_usize;             // scope 0 at $DIR/reference_prop.rs:+22:21: +22:28
          StorageLive(_20);                // scope 8 at $DIR/reference_prop.rs:+23:13: +23:14
          _20 = &mut _19;                  // scope 8 at $DIR/reference_prop.rs:+23:17: +23:23
          StorageLive(_21);                // scope 9 at $DIR/reference_prop.rs:+24:13: +24:14
          _21 = &_20;                      // scope 9 at $DIR/reference_prop.rs:+24:17: +24:19
          StorageLive(_22);                // scope 10 at $DIR/reference_prop.rs:+25:13: +25:14
          _22 = (*_20);                    // scope 10 at $DIR/reference_prop.rs:+25:17: +25:19
          StorageLive(_23);                // scope 11 at $DIR/reference_prop.rs:+26:9: +26:18
          StorageLive(_24);                // scope 11 at $DIR/reference_prop.rs:+26:16: +26:17
          _24 = _21;                       // scope 11 at $DIR/reference_prop.rs:+26:16: +26:17
          _23 = opaque::<&&mut usize>(move _24) -> bb3; // scope 11 at $DIR/reference_prop.rs:+26:9: +26:18
                                           // mir::Constant
                                           // + span: $DIR/reference_prop.rs:129:9: 129:15
                                           // + literal: Const { ty: fn(&&mut usize) {opaque::<&&mut usize>}, val: Value(<ZST>) }
      }
  
      bb3: {
          StorageDead(_24);                // scope 11 at $DIR/reference_prop.rs:+26:17: +26:18
          StorageDead(_23);                // scope 11 at $DIR/reference_prop.rs:+26:18: +26:19
-         _18 = const ();                  // scope 0 at $DIR/reference_prop.rs:+21:5: +27:6
          StorageDead(_22);                // scope 10 at $DIR/reference_prop.rs:+27:5: +27:6
          StorageDead(_21);                // scope 9 at $DIR/reference_prop.rs:+27:5: +27:6
          StorageDead(_20);                // scope 8 at $DIR/reference_prop.rs:+27:5: +27:6
          StorageDead(_19);                // scope 0 at $DIR/reference_prop.rs:+27:5: +27:6
-         StorageDead(_18);                // scope 0 at $DIR/reference_prop.rs:+27:5: +27:6
-         StorageLive(_25);                // scope 0 at $DIR/reference_prop.rs:+30:5: +36:6
          StorageLive(_26);                // scope 0 at $DIR/reference_prop.rs:+31:13: +31:18
          _26 = const 5_usize;             // scope 0 at $DIR/reference_prop.rs:+31:21: +31:28
          StorageLive(_27);                // scope 12 at $DIR/reference_prop.rs:+32:13: +32:18
          _27 = &mut _26;                  // scope 12 at $DIR/reference_prop.rs:+32:21: +32:27
          StorageLive(_28);                // scope 13 at $DIR/reference_prop.rs:+33:13: +33:14
          _28 = &raw mut _27;              // scope 13 at $DIR/reference_prop.rs:+33:17: +33:27
          StorageLive(_29);                // scope 14 at $DIR/reference_prop.rs:+34:13: +34:14
          _29 = (*_27);                    // scope 14 at $DIR/reference_prop.rs:+34:17: +34:19
          StorageLive(_30);                // scope 15 at $DIR/reference_prop.rs:+35:9: +35:18
          StorageLive(_31);                // scope 15 at $DIR/reference_prop.rs:+35:16: +35:17
          _31 = _28;                       // scope 15 at $DIR/reference_prop.rs:+35:16: +35:17
          _30 = opaque::<*mut &mut usize>(move _31) -> bb4; // scope 15 at $DIR/reference_prop.rs:+35:9: +35:18
                                           // mir::Constant
                                           // + span: $DIR/reference_prop.rs:138:9: 138:15
                                           // + literal: Const { ty: fn(*mut &mut usize) {opaque::<*mut &mut usize>}, val: Value(<ZST>) }
      }
  
      bb4: {
          StorageDead(_31);                // scope 15 at $DIR/reference_prop.rs:+35:17: +35:18
          StorageDead(_30);                // scope 15 at $DIR/reference_prop.rs:+35:18: +35:19
-         _25 = const ();                  // scope 0 at $DIR/reference_prop.rs:+30:5: +36:6
          StorageDead(_29);                // scope 14 at $DIR/reference_prop.rs:+36:5: +36:6
          StorageDead(_28);                // scope 13 at $DIR/reference_prop.rs:+36:5: +36:6
          StorageDead(_27);                // scope 12 at $DIR/reference_prop.rs:+36:5: +36:6
          StorageDead(_26);                // scope 0 at $DIR/reference_prop.rs:+36:5: +36:6
-         StorageDead(_25);                // scope 0 at $DIR/reference_prop.rs:+36:5: +36:6
-         StorageLive(_32);                // scope 0 at $DIR/reference_prop.rs:+39:5: +44:6
          StorageLive(_33);                // scope 0 at $DIR/reference_prop.rs:+40:13: +40:18
          _33 = const 7_usize;             // scope 0 at $DIR/reference_prop.rs:+40:21: +40:28
          StorageLive(_34);                // scope 16 at $DIR/reference_prop.rs:+41:13: +41:14
          _34 = &mut _33;                  // scope 16 at $DIR/reference_prop.rs:+41:17: +41:23
          StorageLive(_35);                // scope 17 at $DIR/reference_prop.rs:+42:13: +42:14
          _35 = (*_34);                    // scope 17 at $DIR/reference_prop.rs:+42:17: +42:19
          StorageLive(_36);                // scope 18 at $DIR/reference_prop.rs:+43:9: +43:18
          StorageLive(_37);                // scope 18 at $DIR/reference_prop.rs:+43:16: +43:17
          _37 = move _34;                  // scope 18 at $DIR/reference_prop.rs:+43:16: +43:17
          _36 = opaque::<&mut usize>(move _37) -> bb5; // scope 18 at $DIR/reference_prop.rs:+43:9: +43:18
                                           // mir::Constant
                                           // + span: $DIR/reference_prop.rs:146:9: 146:15
                                           // + literal: Const { ty: fn(&mut usize) {opaque::<&mut usize>}, val: Value(<ZST>) }
      }
  
      bb5: {
          StorageDead(_37);                // scope 18 at $DIR/reference_prop.rs:+43:17: +43:18
          StorageDead(_36);                // scope 18 at $DIR/reference_prop.rs:+43:18: +43:19
-         _32 = const ();                  // scope 0 at $DIR/reference_prop.rs:+39:5: +44:6
          StorageDead(_35);                // scope 17 at $DIR/reference_prop.rs:+44:5: +44:6
          StorageDead(_34);                // scope 16 at $DIR/reference_prop.rs:+44:5: +44:6
          StorageDead(_33);                // scope 0 at $DIR/reference_prop.rs:+44:5: +44:6
-         StorageDead(_32);                // scope 0 at $DIR/reference_prop.rs:+44:5: +44:6
-         StorageLive(_38);                // scope 0 at $DIR/reference_prop.rs:+47:5: +57:6
          StorageLive(_39);                // scope 0 at $DIR/reference_prop.rs:+48:13: +48:18
          _39 = const 7_usize;             // scope 0 at $DIR/reference_prop.rs:+48:21: +48:28
          StorageLive(_40);                // scope 19 at $DIR/reference_prop.rs:+49:13: +49:15
          _40 = &mut _39;                  // scope 19 at $DIR/reference_prop.rs:+49:18: +49:24
          StorageLive(_41);                // scope 20 at $DIR/reference_prop.rs:+50:13: +50:14
          _41 = (*_40);                    // scope 20 at $DIR/reference_prop.rs:+50:17: +50:20
          StorageLive(_42);                // scope 21 at $DIR/reference_prop.rs:+51:13: +51:15
          _42 = move _40;                  // scope 21 at $DIR/reference_prop.rs:+51:18: +51:20
          StorageLive(_43);                // scope 22 at $DIR/reference_prop.rs:+52:13: +52:15
          _43 = (*_42);                    // scope 22 at $DIR/reference_prop.rs:+52:18: +52:21
          StorageLive(_44);                // scope 23 at $DIR/reference_prop.rs:+53:13: +53:15
          _44 = move _42;                  // scope 23 at $DIR/reference_prop.rs:+53:18: +53:20
          StorageLive(_45);                // scope 24 at $DIR/reference_prop.rs:+56:9: +56:19
          StorageLive(_46);                // scope 24 at $DIR/reference_prop.rs:+56:16: +56:18
          _46 = move _44;                  // scope 24 at $DIR/reference_prop.rs:+56:16: +56:18
          _45 = opaque::<&mut usize>(move _46) -> bb6; // scope 24 at $DIR/reference_prop.rs:+56:9: +56:19
                                           // mir::Constant
                                           // + span: $DIR/reference_prop.rs:159:9: 159:15
                                           // + literal: Const { ty: fn(&mut usize) {opaque::<&mut usize>}, val: Value(<ZST>) }
      }
  
      bb6: {
          StorageDead(_46);                // scope 24 at $DIR/reference_prop.rs:+56:18: +56:19
          StorageDead(_45);                // scope 24 at $DIR/reference_prop.rs:+56:19: +56:20
-         _38 = const ();                  // scope 0 at $DIR/reference_prop.rs:+47:5: +57:6
          StorageDead(_44);                // scope 23 at $DIR/reference_prop.rs:+57:5: +57:6
          StorageDead(_43);                // scope 22 at $DIR/reference_prop.rs:+57:5: +57:6
          StorageDead(_42);                // scope 21 at $DIR/reference_prop.rs:+57:5: +57:6
          StorageDead(_41);                // scope 20 at $DIR/reference_prop.rs:+57:5: +57:6
          StorageDead(_40);                // scope 19 at $DIR/reference_prop.rs:+57:5: +57:6
          StorageDead(_39);                // scope 0 at $DIR/reference_prop.rs:+57:5: +57:6
-         StorageDead(_38);                // scope 0 at $DIR/reference_prop.rs:+57:5: +57:6
-         StorageLive(_47);                // scope 0 at $DIR/reference_prop.rs:+60:5: +64:6
-         StorageLive(_48);                // scope 0 at $DIR/reference_prop.rs:+61:13: +61:14
-         _48 = &mut (*_1);                // scope 0 at $DIR/reference_prop.rs:+61:17: +61:29
          StorageLive(_49);                // scope 25 at $DIR/reference_prop.rs:+62:13: +62:14
-         _49 = (*_48);                    // scope 25 at $DIR/reference_prop.rs:+62:17: +62:19
+         _49 = (*_1);                     // scope 25 at $DIR/reference_prop.rs:+62:17: +62:19
          StorageLive(_50);                // scope 26 at $DIR/reference_prop.rs:+63:9: +63:19
          StorageLive(_51);                // scope 26 at $DIR/reference_prop.rs:+63:16: +63:18
          _51 = ();                        // scope 26 at $DIR/reference_prop.rs:+63:16: +63:18
          _50 = opaque::<()>(move _51) -> bb7; // scope 26 at $DIR/reference_prop.rs:+63:9: +63:19
                                           // mir::Constant
                                           // + span: $DIR/reference_prop.rs:166:9: 166:15
                                           // + literal: Const { ty: fn(()) {opaque::<()>}, val: Value(<ZST>) }
      }
  
      bb7: {
          StorageDead(_51);                // scope 26 at $DIR/reference_prop.rs:+63:18: +63:19
          StorageDead(_50);                // scope 26 at $DIR/reference_prop.rs:+63:19: +63:20
-         _47 = const ();                  // scope 0 at $DIR/reference_prop.rs:+60:5: +64:6
          StorageDead(_49);                // scope 25 at $DIR/reference_prop.rs:+64:5: +64:6
-         StorageDead(_48);                // scope 0 at $DIR/reference_prop.rs:+64:5: +64:6
-         StorageDead(_47);                // scope 0 at $DIR/reference_prop.rs:+64:5: +64:6
-         StorageLive(_52);                // scope 0 at $DIR/reference_prop.rs:+67:5: +72:6
          StorageLive(_53);                // scope 0 at $DIR/reference_prop.rs:+68:13: +68:14
          _53 = &mut (*_2);                // scope 0 at $DIR/reference_prop.rs:+68:17: +68:31
          StorageLive(_54);                // scope 27 at $DIR/reference_prop.rs:+69:20: +69:32
-         StorageLive(_55);                // scope 27 at $DIR/reference_prop.rs:+69:20: +69:32
-         _55 = &mut (*_1);                // scope 27 at $DIR/reference_prop.rs:+69:20: +69:32
-         _54 = &mut (*_55);               // scope 27 at $DIR/reference_prop.rs:+69:20: +69:32
+         _54 = &mut (*_1);                // scope 27 at $DIR/reference_prop.rs:+69:20: +69:32
          _2 = move _54;                   // scope 27 at $DIR/reference_prop.rs:+69:9: +69:32
          StorageDead(_54);                // scope 27 at $DIR/reference_prop.rs:+69:31: +69:32
-         StorageDead(_55);                // scope 27 at $DIR/reference_prop.rs:+69:32: +69:33
          StorageLive(_56);                // scope 27 at $DIR/reference_prop.rs:+70:13: +70:14
          _56 = (*_53);                    // scope 27 at $DIR/reference_prop.rs:+70:17: +70:19
          StorageLive(_57);                // scope 28 at $DIR/reference_prop.rs:+71:9: +71:19
          StorageLive(_58);                // scope 28 at $DIR/reference_prop.rs:+71:16: +71:18
          _58 = ();                        // scope 28 at $DIR/reference_prop.rs:+71:16: +71:18
          _57 = opaque::<()>(move _58) -> bb8; // scope 28 at $DIR/reference_prop.rs:+71:9: +71:19
                                           // mir::Constant
                                           // + span: $DIR/reference_prop.rs:174:9: 174:15
                                           // + literal: Const { ty: fn(()) {opaque::<()>}, val: Value(<ZST>) }
      }
  
      bb8: {
          StorageDead(_58);                // scope 28 at $DIR/reference_prop.rs:+71:18: +71:19
          StorageDead(_57);                // scope 28 at $DIR/reference_prop.rs:+71:19: +71:20
-         _52 = const ();                  // scope 0 at $DIR/reference_prop.rs:+67:5: +72:6
          StorageDead(_56);                // scope 27 at $DIR/reference_prop.rs:+72:5: +72:6
          StorageDead(_53);                // scope 0 at $DIR/reference_prop.rs:+72:5: +72:6
-         StorageDead(_52);                // scope 0 at $DIR/reference_prop.rs:+72:5: +72:6
-         StorageLive(_59);                // scope 0 at $DIR/reference_prop.rs:+75:5: +81:6
          StorageLive(_60);                // scope 0 at $DIR/reference_prop.rs:+76:13: +76:18
          _60 = const 5_usize;             // scope 0 at $DIR/reference_prop.rs:+76:21: +76:28
-         StorageLive(_61);                // scope 29 at $DIR/reference_prop.rs:+77:13: +77:14
-         _61 = &mut _60;                  // scope 29 at $DIR/reference_prop.rs:+77:17: +77:23
-         StorageLive(_62);                // scope 30 at $DIR/reference_prop.rs:+78:13: +78:14
-         _62 = &_61;                      // scope 30 at $DIR/reference_prop.rs:+78:17: +78:19
          StorageLive(_63);                // scope 31 at $DIR/reference_prop.rs:+79:13: +79:14
-         _63 = (*_61);                    // scope 31 at $DIR/reference_prop.rs:+79:17: +79:19
+         _63 = _60;                       // scope 31 at $DIR/reference_prop.rs:+79:17: +79:19
          StorageLive(_64);                // scope 32 at $DIR/reference_prop.rs:+80:9: +80:19
          StorageLive(_65);                // scope 32 at $DIR/reference_prop.rs:+80:16: +80:18
          _65 = ();                        // scope 32 at $DIR/reference_prop.rs:+80:16: +80:18
          _64 = opaque::<()>(move _65) -> bb9; // scope 32 at $DIR/reference_prop.rs:+80:9: +80:19
                                           // mir::Constant
                                           // + span: $DIR/reference_prop.rs:183:9: 183:15
                                           // + literal: Const { ty: fn(()) {opaque::<()>}, val: Value(<ZST>) }
      }
  
      bb9: {
          StorageDead(_65);                // scope 32 at $DIR/reference_prop.rs:+80:18: +80:19
          StorageDead(_64);                // scope 32 at $DIR/reference_prop.rs:+80:19: +80:20
-         _59 = const ();                  // scope 0 at $DIR/reference_prop.rs:+75:5: +81:6
          StorageDead(_63);                // scope 31 at $DIR/reference_prop.rs:+81:5: +81:6
-         StorageDead(_62);                // scope 30 at $DIR/reference_prop.rs:+81:5: +81:6
-         StorageDead(_61);                // scope 29 at $DIR/reference_prop.rs:+81:5: +81:6
          StorageDead(_60);                // scope 0 at $DIR/reference_prop.rs:+81:5: +81:6
-         StorageDead(_59);                // scope 0 at $DIR/reference_prop.rs:+81:5: +81:6
          StorageLive(_66);                // scope 0 at $DIR/reference_prop.rs:+85:13: +85:18
          _66 = const 5_usize;             // scope 0 at $DIR/reference_prop.rs:+85:21: +85:28
-         StorageLive(_67);                // scope 33 at $DIR/reference_prop.rs:+86:13: +86:18
-         _67 = &mut _66;                  // scope 33 at $DIR/reference_prop.rs:+86:21: +86:27
-         StorageLive(_68);                // scope 34 at $DIR/reference_prop.rs:+87:13: +87:14
-         _68 = &mut _67;                  // scope 34 at $DIR/reference_prop.rs:+87:17: +87:23
          StorageLive(_69);                // scope 35 at $DIR/reference_prop.rs:+88:13: +88:14
-         _69 = (*_67);                    // scope 35 at $DIR/reference_prop.rs:+88:17: +88:19
+         _69 = _66;                       // scope 35 at $DIR/reference_prop.rs:+88:17: +88:19
          StorageLive(_70);                // scope 36 at $DIR/reference_prop.rs:+89:9: +89:19
          StorageLive(_71);                // scope 36 at $DIR/reference_prop.rs:+89:16: +89:18
          _71 = ();                        // scope 36 at $DIR/reference_prop.rs:+89:16: +89:18
          _70 = opaque::<()>(move _71) -> bb10; // scope 36 at $DIR/reference_prop.rs:+89:9: +89:19
                                           // mir::Constant
                                           // + span: $DIR/reference_prop.rs:192:9: 192:15
                                           // + literal: Const { ty: fn(()) {opaque::<()>}, val: Value(<ZST>) }
      }
  
      bb10: {
          StorageDead(_71);                // scope 36 at $DIR/reference_prop.rs:+89:18: +89:19
          StorageDead(_70);                // scope 36 at $DIR/reference_prop.rs:+89:19: +89:20
          _0 = const ();                   // scope 0 at $DIR/reference_prop.rs:+84:5: +90:6
          StorageDead(_69);                // scope 35 at $DIR/reference_prop.rs:+90:5: +90:6
-         StorageDead(_68);                // scope 34 at $DIR/reference_prop.rs:+90:5: +90:6
-         StorageDead(_67);                // scope 33 at $DIR/reference_prop.rs:+90:5: +90:6
          StorageDead(_66);                // scope 0 at $DIR/reference_prop.rs:+90:5: +90:6
          return;                          // scope 0 at $DIR/reference_prop.rs:+91:2: +91:2
      }
  }