1/* PR rtl-optimization/63843 */
2
3static inline __attribute__ ((always_inline))
4unsigned short foo (unsigned short v)
5{
6  return (v << 8) | (v >> 8);
7}
8
9unsigned short __attribute__ ((noinline, noclone, hot))
10bar (unsigned char *x)
11{
12  unsigned int a;
13  unsigned short b;
14  __builtin_memcpy (&a, &x[0], sizeof (a));
15  a ^= 0x80808080U;
16  __builtin_memcpy (&x[0], &a, sizeof (a));
17  __builtin_memcpy (&b, &x[2], sizeof (b));
18  return foo (b);
19}
20
21int
22main ()
23{
24  unsigned char x[8] = { 0x01, 0x01, 0x01, 0x01 };
25  if (__CHAR_BIT__ == 8
26      && sizeof (short) == 2
27      && sizeof (int) == 4
28      && bar (x) != 0x8181U)
29    __builtin_abort ();
30  return 0;
31}
32