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/* { dg-do compile } */

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

/* { dg-options "-O2 -ftree-loop-linear -fdump-tree-ltrans-all -march=i486" { target { i?86-*-* && ilp32} } } */

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

double u[1782225];

int foo(int N, int *res)

{

  int i, j;

  double sum = 0.0;

  /* This loop should be converted to a perfect nest and

     interchanged. */

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

    {

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

        sum = sum + u[i + 1335 * j];

      u[1336 * i] *= 2;

    }

  *res = sum + N;

}

/* { dg-final { scan-tree-dump-times "converted loop nest to perfect loop nest" 1 "ltrans"} } */

/* { dg-final { scan-tree-dump-times "transformed loop" 1 "ltrans"} } */

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