1  /* { dg-do compile } */
       2  /* { dg-options "-O2" } */
       3  
       4  /* PR rtl-optimization/78038.
       5     Make sure ree can gracefully handle extensions of the global
       6     variable register after a call.  */
       7  
       8  typedef void (*test_fptr_t) (void);
       9  void
      10  test_f (void)
      11  {
      12  }
      13  test_fptr_t test_fptr = test_f;
      14  
      15  struct test2_s
      16  {
      17    int f;
      18  };
      19  
      20  register struct test2_s *g __asm__("x28");
      21  
      22  void
      23  do_something ()
      24  {
      25    test_fptr ();
      26    struct test2_s *p1 = 0;
      27    *p1 = *g;
      28  }