1  /* { dg-do compile } */
       2  /* { dg-options "-O2 -Wrestrict" } */
       3  
       4  void test_memcpy_warn (char *d, unsigned n)
       5  {
       6    for (unsigned i = n; i < 30; ++i)
       7      if (i > 10)
       8        __builtin_memcpy (d, d + 2, i); /* { dg-warning "overlaps" } */
       9  }