1  /* PR rtl-optimization/27616 */
       2  /* Reported by Lee Ji Hwan <moonz@kaist.ac.kr> */
       3  /* Testcase by Andrew Pinski <pinskia@gcc.gnu.org> */
       4  
       5  struct chunk_s
       6  {
       7    unsigned int size;
       8    int offset_next;
       9  };
      10  
      11  typedef struct chunk_s chunk_t;
      12  
      13  void foo(chunk_t *first)
      14  {
      15    chunk_t *cur;
      16    char *first0;
      17  
      18    do {
      19      first0 = (char *) first;
      20      cur = (chunk_t *) (first0 + first->offset_next);
      21      if ((chunk_t *) (first0 + cur->offset_next) != first)
      22        return ;
      23  
      24      first->offset_next = 0;
      25  
      26    } while (cur->size != 0);
      27  }