1  /* { dg-do compile } */
       2  
       3  extern int printf(const char *, ...);
       4  struct list_head {
       5  	struct list_head *next, *prev;
       6  };
       7  struct resource {
       8  	unsigned long long start;
       9  	unsigned long long end;
      10  	unsigned long flags;
      11  	struct resource *parent, *sibling, *child;
      12  };
      13  struct pci_dev {
      14  	struct list_head bus_list;
      15  	struct resource resource[12];
      16  };
      17  struct pci_bus {
      18  	struct list_head devices;
      19  	unsigned char secondary;
      20  	unsigned char subordinate;
      21  };
      22  struct resource *pci_bus_resource_n(const struct pci_bus *bus, int n);
      23  static struct resource *find_free_bus_resource(struct pci_bus *bus, unsigned long type) {
      24  	int i;
      25  	struct resource *r;
      26  	unsigned long type_mask = 0x00000100 | 0x00000200 | 0x00002000;
      27  	for (i = 0; (r = pci_bus_resource_n(bus, i)) || i < 4; i++) {
      28  		if (r && (r->flags & type_mask) == type && !r->parent) return r;
      29  	}
      30  	return ((void *)0);
      31  }
      32  static unsigned long long calculate_memsize(unsigned long long size, unsigned long long min_size, unsigned long long size1, unsigned long long old_size, unsigned long long align) {
      33  	if (old_size == 1 ) old_size = 0;
      34  	if (size < old_size) size = old_size;
      35  	return size;
      36  }
      37  void pbus_size_mem(struct pci_bus *bus, unsigned long mask, unsigned long type, unsigned long long min_size, unsigned long long add_size, void *realloc_head) {
      38  	struct pci_dev *dev;
      39  	unsigned long long min_align, align, size, size0, size1;
      40  	int order;
      41  	struct resource *b_res = find_free_bus_resource(bus, type);
      42  	unsigned long long children_add_size = 0;
      43  	if (!b_res) return;
      44  	for (dev = ({
      45  				const typeof( ((typeof(*dev) *)0)->bus_list ) *__mptr = ((&bus->devices)->next);
      46  				(typeof(*dev) *)( (char *)__mptr - __builtin_offsetof(typeof(*dev),bus_list) );
      47  				}
      48  		   );
      49  			&dev->bus_list != (&bus->devices);
      50  			dev = ({
      51  				const typeof( ((typeof(*dev) *)0)->bus_list ) *__mptr = (dev->bus_list.next);
      52  				(typeof(*dev) *)( (char *)__mptr - __builtin_offsetof(typeof(*dev),bus_list) );
      53  				}
      54  			      )) {
      55  		int i;
      56  		for (i = 0; i < 12; i++) {
      57  			struct resource *r = &dev->resource[i];
      58  			unsigned long long r_size;
      59  			if (r->parent || (r->flags & mask) != type) continue;
      60  			r_size = r->end - r->start + 1;
      61  			if (order > 11) {
      62  				printf("%d: %pR %#llx\n", i, r, (unsigned long long) align);
      63  			}
      64  			size += r_size;
      65  		}
      66  	}
      67  	if (children_add_size > add_size) add_size = children_add_size;
      68  	size1 = (!realloc_head || (realloc_head && !add_size)) ? size0 : calculate_memsize(size, min_size+add_size, 0, b_res->end - b_res->start + 1, min_align);
      69  	if (!size0 && !size1) {
      70  		printf("%pR %02x-%02x\n", b_res, bus->secondary, bus->subordinate);
      71  	}
      72  }