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/* { dg-options "-O3 -fgraphite-identity -fdump-tree-graphite-all" } */

typedef struct

{

      int mode,state,num,state_out;

      unsigned char* bits;

      char *out;

}test;

unsigned char copy( test* s )

{

   while(1)

     {

      if (s->mode == 0) break;

      if (s->state_out >= s->num) break;

      *(s->out) = s->bits[s->state_out];

      if (s->mode == 0) s->mode++;

     }

}

unsigned char compress(test *in)

{

   unsigned char p_in, p_out;

   while(1)

   {

      if (in->state == 1)

      {

         p_out |= copy(in);

         if (in->state_out < in->num) break;

      }

   }

   return p_in || p_out;

}

/* { dg-final { cleanup-tree-dump "graphite" } } */