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
73
74
75
76
|
/* PR middle-end/91450 */
__attribute__((noipa)) void
foo (int a, int b)
{
unsigned long long r;
if (__builtin_mul_overflow (a, b, &r))
__builtin_abort ();
if (r != 0)
__builtin_abort ();
}
__attribute__((noipa)) void
bar (int a, int b)
{
unsigned long long r;
if (a >= 0)
return;
if (__builtin_mul_overflow (a, b, &r))
__builtin_abort ();
if (r != 0)
__builtin_abort ();
}
__attribute__((noipa)) void
baz (int a, int b)
{
unsigned long long r;
if (b >= 0)
return;
if (__builtin_mul_overflow (a, b, &r))
__builtin_abort ();
if (r != 0)
__builtin_abort ();
}
__attribute__((noipa)) void
qux (int a, int b)
{
unsigned long long r;
if (a >= 0)
return;
if (b < 0)
return;
if (__builtin_mul_overflow (a, b, &r))
__builtin_abort ();
if (r != 0)
__builtin_abort ();
}
__attribute__((noipa)) void
quux (int a, int b)
{
unsigned long long r;
if (a < 0)
return;
if (b >= 0)
return;
if (__builtin_mul_overflow (a, b, &r))
__builtin_abort ();
if (r != 0)
__builtin_abort ();
}
int
main ()
{
foo (-4, 0);
foo (0, -4);
foo (0, 0);
bar (-4, 0);
baz (0, -4);
qux (-4, 0);
quux (0, -4);
return 0;
}
|
