1  /* PR rtl-optimization/23241 */
       2  /* Origin: Josh Conner <jconner@apple.com> */
       3  
       4  /* { dg-do run } */
       5  /* { dg-options "-O2" } */
       6  
       7  extern void abort(void);
       8  
       9  struct fbs {
      10    unsigned char uc;
      11  } fbs1 = {255};
      12  
      13  void fn(struct fbs *fbs_ptr)
      14  {
      15    if ((fbs_ptr->uc != 255) && (fbs_ptr->uc != 0))
      16      abort();
      17  }
      18  
      19  int main(void)
      20  {
      21    fn(&fbs1); 
      22    return 0;
      23  }