gcc/testsuite/gcc.dg/torture/pr58079.c

   1 /* { dg-options "-mlong-calls" { target mips*-*-* } } */
   2
   3 typedef unsigned char u8;
   4 typedef unsigned short u16;
   5 typedef unsigned int __kernel_size_t;
   6 typedef __kernel_size_t size_t;
   7 struct list_head {
   8  struct list_head *next;
   9 };
  10
  11 struct dmx_ts_feed {
  12  int is_filtering;
  13 };
  14 struct dmx_section_feed {
  15  u16 secbufp;
  16  u16 seclen;
  17  u16 tsfeedp;
  18 };
  19
  20 typedef int (*dmx_ts_cb) (
  21         const u8 * buffer1,
  22       size_t buffer1_length,
  23       const u8 * buffer2,
  24       size_t buffer2_length
  25 );
  26
  27 struct dvb_demux_feed {
  28  union {
  29   struct dmx_ts_feed ts;
  30   struct dmx_section_feed sec;
  31  } feed;
  32  union {
  33   dmx_ts_cb ts;
  34  } cb;
  35  int type;
  36  u16 pid;
  37  int ts_type;
  38  struct list_head list_head;
  39 };
  40
  41 struct dvb_demux {
  42  int (*stop_feed)(struct dvb_demux_feed *feed);
  43  struct list_head feed_list;
  44 };
  45
  46 int dvb_dmx_swfilter_section_packet (struct dvb_demux_feed *, const u8 *);
  47
  48 static
  49 inline
  50 __attribute__((always_inline))
  51 u8
  52 payload(const u8 *tsp)
  53 {
  54  if (tsp[3] & 0x20) {
  55    return 184 - 1 - tsp[4];
  56  }
  57  return 184;
  58 }
  59
  60 static
  61 inline
  62 __attribute__((always_inline))
  63 int
  64 dvb_dmx_swfilter_payload(struct dvb_demux_feed *feed, const u8 *buf)
  65 {
  66  int count = payload(buf);
  67  int p;
  68  if (count == 0)
  69   return -1;
  70  return feed->cb.ts(&buf[p], count, ((void *)0), 0);
  71 }
  72
  73 static
  74 inline
  75 __attribute__((always_inline))
  76 void
  77 dvb_dmx_swfilter_packet_type(struct dvb_demux_feed *feed, const u8 *buf)
  78 {
  79  switch (feed->type) {
  80  case 0:
  81   if (feed->ts_type & 1) {
  82     dvb_dmx_swfilter_payload(feed, buf);
  83   }
  84   if (dvb_dmx_swfilter_section_packet(feed, buf) < 0)
  85    feed->feed.sec.seclen = feed->feed.sec.secbufp = 0;
  86  }
  87 }
  88
  89 static
  90 void
  91 dvb_dmx_swfilter_packet(struct dvb_demux *demux, const u8 *buf)
  92 {
  93  struct dvb_demux_feed *feed;
  94  int dvr_done = 0;
  95
  96  for (feed = ({ const typeof( ((typeof(*feed) *)0)->list_head ) *__mptr = ((&demux->feed_list)->next); (typeof(*feed) *)( (char *)__mptr - __builtin_offsetof(typeof(*feed),list_head) );}); __builtin_prefetch(feed->list_head.next), &feed->list_head != (&demux->feed_list); feed = ({ const typeof( ((typeof(*feed) *)0)->list_head ) *__mptr = (feed->list_head.next); (typeof(*feed) *)( (char *)__mptr - __builtin_offsetof(typeof(*feed),list_head) );})) {
  97   if (((((feed)->type == 0) && ((feed)->feed.ts.is_filtering) && (((feed)->ts_type & (1 | 8)) == 1))) && (dvr_done++))
  98    dvb_dmx_swfilter_packet_type(feed, buf);
  99   else if (feed->pid == 0x2000)
 100    feed->cb.ts(buf, 188, ((void *)0), 0);
 101  }
 102 }
 103 void dvb_dmx_swfilter_packets(struct dvb_demux *demux, const u8 *buf, size_t count)
 104 {
 105  while (count--) {
 106    dvb_dmx_swfilter_packet(demux, buf);
 107  }
 108 }