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
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
|
/* { dg-do run } */
__attribute__((__noipa__))
void f1(int x, void (*p1 []) (int, int))
{
int i;
for (i = 0; i < x; i++)
p1[i](42, 666);
}
int z1_called = 0;
int w1_called = 0;
__attribute__((__noipa__))
void z1(int a, int b)
{
if (w1_called || z1_called)
__builtin_abort();
z1_called++;
}
__attribute__((__noipa__))
void w1(int a, int b)
{
if (w1_called || !z1_called)
__builtin_abort();
w1_called++;
}
int z2_called = 0;
int w2_called = 0;
__attribute__((__noipa__))
void z2(void)
{
if (w2_called || z2_called)
__builtin_abort();
z2_called++;
}
__attribute__((__noipa__))
void w2(void)
{
if (w2_called || !z2_called)
__builtin_abort();
w2_called++;
}
void (*p2 []) () = { w2, z2 };
__attribute__((__noipa__))
void f2(int x)
{
void (**q) (void) = p2 + x;
int i;
for (i = 0; i < x; i++)
(*(--q))();
}
__attribute__((__noipa__))
void f3(int x, int (*p3 []) (int))
{
int i;
int next = x;
for (i = 0; i < x; i++)
next = p3[i](next);
}
int z3_called = 0;
int w3_called = 0;
__attribute__((__noipa__))
int z3(int a)
{
if (w3_called || z3_called || a != 2)
__builtin_abort();
z3_called++;
return 42;
}
__attribute__((__noipa__))
int w3(int a)
{
if (w3_called || !z3_called || a != 42)
__builtin_abort();
w3_called++;
return 4096;
}
int (*p4 []) (int) = { z3, w3 };
__attribute__((__noipa__))
void f4(int x)
{
int (**q) (int) = p4;
int (**r) (int) = p4 + x;
int next = x;
for (; q < r; q++)
next = (*q)(next);
}
int main(void)
{
static int (*p3 []) (int) = { z3, w3 };
static void (*p1 []) (int, int) = { z1, w1 };
f1(2, p1);
if (z1_called != 1 || w1_called != 1)
__builtin_abort();
f2(2);
if (z2_called != 1 || w2_called != 1)
__builtin_abort();
f3(2, p3);
if (z3_called != 1 || w3_called != 1)
__builtin_abort();
z3_called = 0;
w3_called = 0;
f4(2);
if (z3_called != 1 || w3_called != 1)
__builtin_abort();
__builtin_exit(0);
}
|
