1  /* { dg-options "-O3 -fdump-tree-lversion-details" } */
       2  
       3  /* These shouldn't be versioned; it's extremely likely that the code
       4     is emulating two-dimensional arrays.  */
       5  
       6  void
       7  f1 (double *x, int step, int n)
       8  {
       9    for (int i = 0; i < n; ++i)
      10      for (int j = 0; j < n; ++j)
      11        x[i * step + j] = 100;
      12  }
      13  
      14  void
      15  f2 (double *x, int step, int n)
      16  {
      17    for (int i = 0; i < n; ++i)
      18      for (int j = 0; j < n; ++j)
      19        x[j * step + i] = 100;
      20  }
      21  
      22  void
      23  f3 (double *x, int *offsets, int step, int n)
      24  {
      25    for (int i = 0; i < n; ++i)
      26      for (int j = 0; j < n; ++j)
      27        x[i * step + j + offsets[i]] = 100;
      28  }
      29  
      30  void
      31  f4 (double *x, int *offsets, int step, int n)
      32  {
      33    for (int i = 0; i < n; ++i)
      34      for (int j = 0; j < n; ++j)
      35        x[j * step + i + offsets[i]] = 100;
      36  }
      37  
      38  /* { dg-final { scan-tree-dump-not {want to version} "lversion" } } */
      39  /* { dg-final { scan-tree-dump-not {versioned} "lversion" } } */