nsz Git - libfirm/blob - ir/be/test/loopana.c

   1 /* the loop analysis produces strange loop depths here... */
   2
   3 typedef struct OP {
   4         int bla;
   5         int blup;
   6         int op_seq;
   7         int op_type;
   8         struct OP *next;
   9 } OP;
  10
  11 OP operation1;
  12 OP operation2 = { 1, 2, 0, 4, &operation1 };
  13 OP *ptr = &operation2;
  14
  15 int main(int argc, char **argv)
  16 {
  17         OP *o = ptr;
  18
  19         if(!o || o->op_seq)
  20                 return;
  21         printf("%d\n", o->op_seq);
  22         rand();
  23
  24         for( ; o; o = o->next) {
  25                 if(o->op_seq)
  26                         break;
  27                 if(o->bla > 52)
  28                         o->bla -= 20;
  29
  30                 switch(o->bla) {
  31                 case 1:
  32                 case 201:
  33                         printf("%d\n", o->bla);
  34                         break;
  35                 default:
  36                         printf("hmm\n");
  37 #if 0
  38                         while(rand() > 10000)
  39                                 ;
  40 #endif
  41                         break;
  42                 case 500:
  43                         printf("jummy\n");
  44                         break;
  45                 }
  46         }
  47         printf("hjo\n");
  48
  49         return 0;
  50 }