1  struct s { _Complex unsigned short x; };
       2  struct s gs = { 100 + 200i };
       3  struct s __attribute__((noinline)) foo (void) { return gs; }
       4  
       5  int main ()
       6  {
       7    if (foo ().x != gs.x)
       8      abort ();
       9    exit (0);
      10  }