1  /* { dg-do compile } */
       2  /* { dg-require-alias "" } */
       3  /* { dg-options "-O2 -fdump-tree-optimized" } */
       4  static int a=4;
       5  static int b __attribute__ ((alias("a")));
       6  int
       7  main()
       8  {
       9     return b+a;
      10  }
      11  /* { dg-final { scan-tree-dump "return 8" "optimized" } } */