1  /* { dg-do compile } */
       2  /* { dg-options "-O3 -fomit-frame-pointer -fno-tree-vectorize" } */
       3  
       4  void foo (unsigned int n, char *a, char *b)
       5  {
       6    int i;
       7  
       8    for (i = 0; i <= n - 1; ++i)
       9      a[i] = b[i];
      10  }