1  struct A { int i, j; char pad[512]; } a;
       2  
       3  int __attribute__((noinline))
       4  foo (void)
       5  {
       6    __builtin_memset (&a, 0x26, sizeof a);
       7    return a.i;
       8  }
       9  
      10  void __attribute__((noinline))
      11  bar (void)
      12  {
      13    __builtin_memset (&a, 0x36, sizeof a);
      14    a.i = 0x36363636;
      15    a.j = 0x36373636;
      16  }
      17  
      18  int
      19  main (void)
      20  {
      21    int i;
      22    if (sizeof (int) != 4 || __CHAR_BIT__ != 8)
      23      return 0;
      24  
      25    if (foo () != 0x26262626)
      26      __builtin_abort ();
      27    for (i = 0; i < sizeof a; i++)
      28      if (((char *)&a)[i] != 0x26)
      29        __builtin_abort ();
      30  
      31    bar ();
      32    if (a.j != 0x36373636)
      33      __builtin_abort ();
      34    a.j = 0x36363636;
      35    for (i = 0; i < sizeof a; i++)
      36      if (((char *)&a)[i] != 0x36)
      37        __builtin_abort ();
      38    return 0;
      39  }