blob: 188f92cfc8edf2b7c85f2219ac18231dbfe5ce24 (
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
68
69
70
71
72
|
/* PR middle-end/30262 */
extern void abort (void);
int
foo (void)
{
unsigned int x = 0;
void nested (void)
{
x = 254;
}
nested ();
asm volatile ("" :: "r" (x));
asm volatile ("" :: "m" (x));
asm volatile ("" :: "mr" (x));
asm volatile ("" : "=r" (x) : "0" (x));
asm volatile ("" : "=m" (x) : "m" (x));
return x;
}
int
bar (void)
{
unsigned int x = 0;
void nested (void)
{
asm volatile ("" :: "r" (x));
asm volatile ("" :: "m" (x));
asm volatile ("" :: "mr" (x));
x += 4;
asm volatile ("" : "=r" (x) : "0" (x));
asm volatile ("" : "=m" (x) : "m" (x));
}
nested ();
return x;
}
int
baz (void)
{
unsigned int x = 0;
void nested (void)
{
void nested2 (void)
{
asm volatile ("" :: "r" (x));
asm volatile ("" :: "m" (x));
asm volatile ("" :: "mr" (x));
x += 4;
asm volatile ("" : "=r" (x) : "0" (x));
asm volatile ("" : "=m" (x) : "m" (x));
}
nested2 ();
nested2 ();
}
nested ();
return x;
}
int
main (void)
{
if (foo () != 254 || bar () != 4 || baz () != 8)
abort ();
return 0;
}
|
