1  /* { dg-do compile } */
       2  /* { dg-options "-O1 -fdump-tree-phiopt2-details" } */
       3  int f(int a, int b)
       4  {
       5     int c = b;
       6     if (a != b)
       7      c = a;
       8     return c;
       9  }
      10  
      11  /* Should have no ifs left after straightening.  */
      12  /* { dg-final { scan-tree-dump-times "if " 0 "phiopt2"} } */