1  /* { dg-do compile } */
       2  /* { dg-options "-O2 -freciprocal-math -fdump-tree-original" } */
       3  
       4  void do_div (_Complex double *a, _Complex double *b)
       5  {
       6    *a = *b / (4.0 - 5.0fi);
       7  }
       8  
       9  /* Constant folding should multiply *b by the reciprocal of 4 - 5i
      10     = 4/41 + (5/41)i.  */
      11  
      12  /* { dg-final { scan-tree-dump-times " \\\* " 1 "original" } } */
      13  /* { dg-final { scan-tree-dump-times " / " 0 "original" } } */