blob: 8c855b88895bbe211a683c34a984ed14176db6dc (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
|
/* Copyright (C) 2002 Free Software Foundation
Check that constant folding of shift operations is working.
Roger Sayle, 10th October 2002. */
extern void abort (void);
extern void link_error (void);
void
utest (unsigned int x)
{
if (x >> 0 != x)
link_error ();
if (x << 0 != x)
link_error ();
if (0 << x != 0)
link_error ();
if (0 >> x != 0)
link_error ();
if (-1 >> x != -1)
link_error ();
if (~0 >> x != ~0)
link_error ();
}
void
stest (int x)
{
if (x >> 0 != x)
link_error ();
if (x << 0 != x)
link_error ();
if (0 << x != 0)
link_error ();
if (0 >> x != 0)
link_error ();
}
int
main ()
{
utest(9);
utest(0);
stest(9);
stest(0);
return 0;
}
#ifndef __OPTIMIZE__
void
link_error ()
{
abort ();
}
#endif
|