1  /* { dg-do compile } */
       2  /* { dg-skip-if "" { *-*-* } { "*" } { "-O2" } } */
       3  /* { dg-options "-fsanitize=undefined" } */
       4  
       5  void
       6  foo (unsigned long ul)
       7  {
       8    unsigned int u;
       9    u = *(unsigned long *) ul;
      10  }