- // MIR for `transmute_then_cast_pointer` before GVN
+ // MIR for `transmute_then_cast_pointer` after GVN
  
  fn transmute_then_cast_pointer(_1: usize, _2: *mut [u8]) -> () {
      debug addr => _1;
      debug fat => _2;
      let mut _0: ();
      let _3: *mut u8;
      let mut _4: usize;
      let _5: ();
      let mut _6: *const u8;
      let mut _7: *mut u8;
      let mut _9: &mut [i32];
      let mut _10: &mut [i32; 3];
      let mut _11: &mut [i32; 3];
      let mut _12: [i32; 3];
      let _13: ();
      let mut _14: *const i32;
      let mut _15: *const [i32];
      let mut _17: *mut [u8];
      let _18: ();
      let mut _19: *const u8;
      let mut _20: *const [u8];
      scope 1 {
          debug p => _3;
          let _8: *const [i32];
          scope 2 {
              debug q => _8;
              let _16: *const [u8];
              scope 3 {
                  debug w => _16;
              }
          }
      }
  
      bb0: {
-         StorageLive(_3);
+         nop;
          StorageLive(_4);
          _4 = copy _1;
-         _3 = move _4 as *mut u8 (Transmute);
+         _3 = copy _1 as *mut u8 (Transmute);
          StorageDead(_4);
          StorageLive(_5);
          StorageLive(_6);
          StorageLive(_7);
          _7 = copy _3;
-         _6 = move _7 as *const u8 (PtrToPtr);
+         _6 = copy _1 as *const u8 (Transmute);
          StorageDead(_7);
          _5 = takes_const_ptr::<u8>(move _6) -> [return: bb1, unwind continue];
      }
  
      bb1: {
          StorageDead(_6);
          StorageDead(_5);
-         StorageLive(_8);
+         nop;
          StorageLive(_9);
          StorageLive(_10);
          StorageLive(_11);
          StorageLive(_12);
          _12 = [const 1_i32, const 2_i32, const 3_i32];
          _11 = &mut _12;
          _10 = &mut (*_11);
          _9 = move _10 as &mut [i32] (PointerCoercion(Unsize, Implicit));
          StorageDead(_10);
          _8 = move _9 as *const [i32] (Transmute);
          StorageDead(_9);
          StorageDead(_12);
          StorageDead(_11);
          StorageLive(_13);
          StorageLive(_14);
          StorageLive(_15);
          _15 = copy _8;
-         _14 = move _15 as *const i32 (PtrToPtr);
+         _14 = copy _8 as *const i32 (PtrToPtr);
          StorageDead(_15);
          _13 = takes_const_ptr::<i32>(move _14) -> [return: bb2, unwind continue];
      }
  
      bb2: {
          StorageDead(_14);
          StorageDead(_13);
-         StorageLive(_16);
+         nop;
          StorageLive(_17);
          _17 = copy _2;
-         _16 = move _17 as *const [u8] (Transmute);
+         _16 = copy _2 as *const [u8] (PtrToPtr);
          StorageDead(_17);
          StorageLive(_18);
          StorageLive(_19);
          StorageLive(_20);
          _20 = copy _16;
-         _19 = move _20 as *const u8 (PtrToPtr);
+         _19 = copy _2 as *const u8 (PtrToPtr);
          StorageDead(_20);
          _18 = takes_const_ptr::<u8>(move _19) -> [return: bb3, unwind continue];
      }
  
      bb3: {
          StorageDead(_19);
          StorageDead(_18);
          _0 = const ();
-         StorageDead(_16);
-         StorageDead(_8);
-         StorageDead(_3);
+         nop;
+         nop;
+         nop;
          return;
      }
  }