- // MIR for `casts_before_aggregate_raw_ptr` before GVN
+ // MIR for `casts_before_aggregate_raw_ptr` after GVN
  
  fn casts_before_aggregate_raw_ptr(_1: *const u32) -> *const [u8] {
      debug x => _1;
      let mut _0: *const [u8];
      let _2: *const [u8; 4];
      let mut _3: *const u32;
      let mut _5: *const [u8; 4];
      let mut _7: *const u8;
      let mut _8: *const ();
      scope 1 {
          debug x => _2;
          let _4: *const u8;
          scope 2 {
              debug x => _4;
              let _6: *const ();
              scope 3 {
                  debug x => _6;
              }
          }
      }
  
      bb0: {
-         StorageLive(_2);
+         nop;
          StorageLive(_3);
          _3 = copy _1;
-         _2 = move _3 as *const [u8; 4] (PtrToPtr);
+         _2 = copy _1 as *const [u8; 4] (PtrToPtr);
          StorageDead(_3);
-         StorageLive(_4);
+         nop;
          StorageLive(_5);
          _5 = copy _2;
-         _4 = move _5 as *const u8 (PtrToPtr);
+         _4 = copy _1 as *const u8 (PtrToPtr);
          StorageDead(_5);
-         StorageLive(_6);
+         nop;
          StorageLive(_7);
          _7 = copy _4;
-         _6 = move _7 as *const () (PtrToPtr);
+         _6 = copy _1 as *const () (PtrToPtr);
          StorageDead(_7);
          StorageLive(_8);
          _8 = copy _6;
-         _0 = *const [u8] from (move _8, const 4_usize);
+         _0 = *const [u8] from (copy _1, const 4_usize);
          StorageDead(_8);
-         StorageDead(_6);
-         StorageDead(_4);
-         StorageDead(_2);
+         nop;
+         nop;
+         nop;
          return;
      }
  }