- // MIR for `ref_copies` before ScalarReplacementOfAggregates
+ // MIR for `ref_copies` after ScalarReplacementOfAggregates
  
  fn ref_copies(_1: &Foo) -> () {
      debug x => _1;
      let mut _0: ();
      let _2: Foo;
+     let _5: u8;
+     let _6: ();
+     let _7: &str;
+     let _8: std::option::Option<isize>;
      scope 1 {
-         debug y => _2;
+         debug ((y: Foo).0: u8) => _5;
+         debug ((y: Foo).1: ()) => _6;
+         debug ((y: Foo).2: &str) => _7;
+         debug ((y: Foo).3: std::option::Option<isize>) => _8;
          let _3: u8;
          scope 2 {
              debug t => _3;
              let _4: &str;
              scope 3 {
                  debug u => _4;
              }
          }
      }
  
      bb0: {
-         StorageLive(_2);
-         _2 = copy (*_1);
+         StorageLive(_5);
+         StorageLive(_6);
+         StorageLive(_7);
+         StorageLive(_8);
+         nop;
+         _5 = copy ((*_1).0: u8);
+         _6 = copy ((*_1).1: ());
+         _7 = copy ((*_1).2: &str);
+         _8 = copy ((*_1).3: std::option::Option<isize>);
+         nop;
          StorageLive(_3);
-         _3 = copy (_2.0: u8);
+         _3 = copy _5;
          StorageLive(_4);
-         _4 = copy (_2.2: &str);
+         _4 = copy _7;
          _0 = const ();
          StorageDead(_4);
          StorageDead(_3);
-         StorageDead(_2);
+         StorageDead(_5);
+         StorageDead(_6);
+         StorageDead(_7);
+         StorageDead(_8);
+         nop;
          return;
      }
  }