1  /* { dg-do compile } */
       2  /* { dg-options "-O2 -fdump-tree-optimized" } */
       3  /* { dg-final { scan-tree-dump-times "memmove" 0 "optimized" } } */
       4  
       5  char a[40];
       6  extern void bar (char *);
       7  
       8  void
       9  foo (void)
      10  {
      11    char b[10];
      12    __builtin_memmove (&a[0], &a[20], 20);
      13    __builtin_memmove (&b[1], &a[25], 9);
      14    bar (b);
      15  }