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/* { dg-do compile } */

/* { dg-options "-O2 -fdump-tree-cddce1" } */

int main(void)

{

  unsigned i, j;

  for (i = 1, j = 0; i != 0; i+=2)

    {

      j += 500;

      if (j % 7)

        {

          j++;

        }

      else

        {

          j--;

        }

    }

  return 0;

}

/* We now can prove the infiniteness of the loop during CCP and fail

   to eliminate the code inside the infinite loop because we start

   by marking the j % 7 condition as useful.  See PR45178.  */

/* We should eliminate the inner condition, but the loop must be preserved

   as it is infinite.  Therefore there should be just one phi node (for i):  */

/* { dg-final { scan-tree-dump-times "PHI " 1 "cddce1" { xfail *-*-* } } } */

/* And one if (for the exit condition of the loop):  */

/* { dg-final { scan-tree-dump-times "if " 1 "cddce1" } } */

/* { dg-final { cleanup-tree-dump "cddce1" } } */