1/* PR optimization/8634 */
2/* Contributed by Glen Nakamura <glen at imodulo dot com> */
3
4extern void abort (void);
5
6struct foo {
7  char a, b, c, d, e, f, g, h, i, j;
8};
9
10int test1 ()
11{
12  const char X[8] = { 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H' };
13  char buffer[8];
14  __builtin_memcpy (buffer, X, 8);
15  if (buffer[0] != 'A' || buffer[1] != 'B'
16      || buffer[2] != 'C' || buffer[3] != 'D'
17      || buffer[4] != 'E' || buffer[5] != 'F'
18      || buffer[6] != 'G' || buffer[7] != 'H')
19    abort ();
20  return 0;
21}
22
23int test2 ()
24{
25  const char X[10] = { 'A', 'B', 'C', 'D', 'E' };
26  char buffer[10];
27  __builtin_memcpy (buffer, X, 10);
28  if (buffer[0] != 'A' || buffer[1] != 'B'
29      || buffer[2] != 'C' || buffer[3] != 'D'
30      || buffer[4] != 'E' || buffer[5] != '\0'
31      || buffer[6] != '\0' || buffer[7] != '\0'
32      || buffer[8] != '\0' || buffer[9] != '\0')
33    abort ();
34  return 0;
35}
36
37int test3 ()
38{
39  const struct foo X = { a : 'A', c : 'C', e : 'E', g : 'G', i : 'I' };
40  char buffer[10];
41  __builtin_memcpy (buffer, &X, 10);
42  if (buffer[0] != 'A' || buffer[1] != '\0'
43      || buffer[2] != 'C' || buffer[3] != '\0'
44      || buffer[4] != 'E' || buffer[5] != '\0'
45      || buffer[6] != 'G' || buffer[7] != '\0'
46      || buffer[8] != 'I' || buffer[9] != '\0')
47    abort ();
48  return 0;
49}
50
51int test4 ()
52{
53  const struct foo X = { .b = 'B', .d = 'D', .f = 'F', .h = 'H' , .j = 'J' };
54  char buffer[10];
55  __builtin_memcpy (buffer, &X, 10);
56  if (buffer[0] != '\0' || buffer[1] != 'B'
57      || buffer[2] != '\0' || buffer[3] != 'D'
58      || buffer[4] != '\0' || buffer[5] != 'F'
59      || buffer[6] != '\0' || buffer[7] != 'H'
60      || buffer[8] != '\0' || buffer[9] != 'J')
61    abort ();
62  return 0;
63}
64
65int main ()
66{
67  test1 (); test2 (); test3 (); test4 ();
68  return 0;
69}
70