1  /* { dg-do run } */
       2  
       3  typedef struct { unsigned int num; } info_t;
       4  typedef struct { unsigned int flag, type; } block_t;
       5  info_t info;
       6  block_t blocks[] = { {2,0}, {3,0}, {1,0}, {1,0} };
       7  
       8  static block_t *
       9  f (info_t *i, block_t *b)
      10  {
      11    while (1) {
      12      unsigned int is_last = b->flag & 0x01;
      13      i->num++;
      14      if (b->flag & 0x02) {
      15        if (b->type != 0x1) b->type = b->type;
      16        b = f (i, b+1);
      17      }
      18      if (is_last)
      19        break;
      20      b++;
      21    }
      22    return b;
      23  }
      24  
      25  int
      26  main ()
      27  {
      28    f(&info, &blocks[0]);
      29    if (info.num != 4)
      30      __builtin_abort ();
      31    return 0;
      32  }