Subversion Repositories openrisc_2011-10-31

/* { dg-do compile } */

/* { dg-options "-O2 -ftree-loop-linear -fdump-tree-ltrans-all" } */

/* { dg-require-effective-target size32plus } */

int foo()

{

  int x[2][2], y[2];

  int i, n, s;

  /* This is a reduction: there is a scalar dependence that cannot be

     removed by rewriting IVs.  This code cannot and should not be

     transformed into a perfect loop.  */

  for (n = 0; n < 2; n++)

    {

      s = 0;

      for (i = 0; i < 2; i++)

        s += x[n][i]*y[i];

      s += 1;

    }

  return s;

}

/* { dg-final { scan-tree-dump-times "converted loop nest to perfect loop nest" 0 "ltrans"} } */

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