gcc/testsuite/gcc.dg/graphite/pr37943.c

   1 /* { dg-options "-O3 -fgraphite-identity -fdump-tree-graphite-all" } */
   2
   3 typedef struct
   4 {
   5       int mode,state,num,state_out;
   6       unsigned char* bits;
   7       char *out;
   8 }test;
   9 unsigned char copy( test* s )
  10 {
  11    while(1)
  12      {
  13       if (s->mode == 0) break;
  14       if (s->state_out >= s->num) break;
  15       *(s->out) = s->bits[s->state_out];
  16       if (s->mode == 0) s->mode++;
  17      }
  18 }
  19 unsigned char compress(test *in)
  20 {
  21    unsigned char p_in, p_out;
  22    while(1)
  23    {
  24       if (in->state == 1)
  25       {
  26          p_out |= copy(in);
  27          if (in->state_out < in->num) break;
  28       }
  29    }
  30    return p_in || p_out;
  31 }
  32