1  /* { dg-do run } */
       2  /* { dg-options "-O -fdump-tree-optimized" } */
       3  
       4  extern void link_error (void);
       5  extern void abort (void);
       6  
       7  int *t;
       8  int __attribute__((noinline)) g(int *a)
       9  {
      10    t = a;
      11    *a = 2;
      12  }
      13  
      14  void __attribute__((noinline)) f(int *a)
      15  {
      16    int b;
      17    b = 1;
      18    g(&b);
      19    b = 2;
      20    *a = 1;
      21    if (b != 2)
      22      link_error();
      23  }
      24  
      25  int main(void)
      26  {
      27    int t;
      28    f(&t);
      29    if (t != 1)
      30      abort ();
      31    return 0;
      32  }
      33  
      34  /* { dg-final { scan-tree-dump-not "link_error" "optimized" } } */