1  /* PR tree-optimization/84383 */
       2  
       3  struct S { char *s; };
       4  void bar (struct S *);
       5  
       6  void
       7  foo (int a, char *b)
       8  {
       9    struct S c[4];
      10    bar (c);
      11    __builtin_strncpy (c[a].s, b, 32);
      12    c[a].s[31] = '\0';
      13    bar (c);
      14  }