gcc/testsuite/gcc.dg/i386-loop-3.c

   1 /* PR target/11044 */
   2 /* Originator: Tim McGrath <misty-@charter.net> */
   3 /* Testcase contributed by Eric Botcazou <ebotcazou@libertysurf.fr> */
   4 /* { dg-do run { target i?86-*-* } } */
   5 /* { dg-options "-mtune=k6 -O3 -ffast-math -funroll-loops" } */
   6
   7 typedef struct
   8 {
   9         unsigned char colormod;
  10 } entity_state_t;
  11
  12 typedef struct
  13 {
  14         int num_entities;
  15         entity_state_t *entities;
  16 } packet_entities_t;
  17
  18 typedef struct
  19 {
  20         double senttime;
  21         float ping_time;
  22         packet_entities_t entities;
  23 } client_frame_t;
  24
  25 typedef enum
  26 {
  27         cs_free,
  28         cs_server,
  29         cs_zombie,
  30         cs_connected,
  31         cs_spawned
  32 } sv_client_state_t;
  33
  34 typedef struct client_s
  35 {
  36         sv_client_state_t state;
  37         int ping;
  38         client_frame_t frames[64];
  39 } client_t;
  40
  41 int CalcPing (client_t *cl)
  42 {
  43         float ping;
  44         int count, i;
  45         register client_frame_t *frame;
  46
  47         if (cl->state == cs_server)
  48                 return cl->ping;
  49         ping = 0;
  50         count = 0;
  51         for (frame = cl->frames, i = 0; i < 64; i++, frame++) {
  52                 if (frame->ping_time > 0) {
  53                         ping += frame->ping_time;
  54                         count++;
  55                 }
  56         }
  57         if (!count)
  58                 return 9999;
  59         ping /= count;
  60
  61         return ping * 1000;
  62 }
  63
  64 int main(void)
  65 {
  66    client_t cl;
  67
  68    memset(&cl, 0, sizeof(cl));
  69
  70    cl.frames[0].ping_time = 1.0f;
  71
  72    if (CalcPing(&cl) != 1000)
  73      abort();
  74
  75    return 0;
  76 }