1  /* PR middle-end/29215 */
       2  /* { dg-do compile } */
       3  /* { dg-options "-O2 -fdump-tree-ccp1" } */
       4  
       5  char buf[5 * sizeof (int) + 1] __attribute__((aligned (__alignof__ (int))));
       6  
       7  static void
       8  foo (int arg1, int arg2, int arg3, int arg4, int arg5)
       9  {
      10    __builtin_memcpy (buf, &arg1, sizeof (int));
      11    __builtin_memcpy (buf + sizeof (int), &arg2, sizeof (int));
      12    __builtin_memcpy (buf + 2 * sizeof (int), &arg3, sizeof (int));
      13    __builtin_memcpy (buf + 3 * sizeof (int), &arg4, sizeof (int));
      14    __builtin_memcpy (buf + 4 * sizeof (int), &arg5, sizeof (int));
      15  }
      16  
      17  int
      18  main (void)
      19  {
      20    union { char buf[4]; int i; } u;
      21    u.i = 0;
      22    u.buf[0] = 'a';
      23    u.buf[1] = 'b';
      24    u.buf[2] = 'c';
      25    u.buf[3] = 'd';
      26    foo (u.i, u.i, u.i, u.i, u.i);
      27    buf[5 * sizeof (int)] = '\0';
      28    __builtin_puts (buf);
      29    return 0;
      30  }
      31  
      32  /* { dg-final { scan-tree-dump-not "memcpy" "ccp1" } } */