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 *p, int n)

{

  int i, j, k = 0;

  /* 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 (i = 0; i < 2; ++i, p += n)

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

      k += p[j];

  return k;

}

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

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