1  /* { dg-do compile } */
       2  /* { dg-require-alias "" } */
       3  /* { dg-require-weak "" } */
       4  /* { dg-options "-O2 -fdump-tree-optimized -std=gnu89" } */
       5  void abort (void);
       6  __attribute__ ((weak))
       7  int test() 
       8  {
       9     return 0;
      10  }
      11  static int test2() __attribute__ ((alias("test")));
      12  static int test1() __attribute__ ((weakref)) __attribute__ ((alias("test2")));
      13  static int test4() __attribute__ ((weakref)) __attribute__ ((alias("test")));
      14  main()
      15  {
      16    test();
      17    test2();
      18    test3();
      19    test4();
      20  }
      21  
      22  /* calls to test1 and test2 can be inlined and optmized away. Calls
      23     to test and test4 are overwritable.  */
      24  
      25  /* { dg-final { scan-tree-dump-times "  test " 1 "optimized" } } */
      26  /* { dg-final { scan-tree-dump-times "  test4 " 1 "optimized" } } */
      27  /* { dg-final { scan-tree-dump-not "  test1 " "optimized" } } */
      28  /* { dg-final { scan-tree-dump-not "  test2 " "optimized" } } */