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
|
/* PR c/49859 */
/* { dg-do compile } */
extern void foo (int);
extern int j;
void
fn0 (int i)
{
switch (i)
{
int k;
case 1:
k = 11;
foo (k);
}
switch (i)
j = 10; /* { dg-warning "statement will never be executed" } */
switch (i)
;
switch (i)
{
j = 12; /* { dg-warning "statement will never be executed" } */
default:
foo (j);
}
int o;
switch (i)
{
o = 333; /* { dg-warning "statement will never be executed" } */
case 4: break;
default:
foo (o);
}
switch (i)
switch (j) /* { dg-warning "statement will never be executed" } */
{
o = 42; /* { dg-warning "statement will never be executed" } */
case 8:;
}
switch (i)
{
int l = 3; /* { dg-warning "statement will never be executed" } */
o = 5;
j = 7;
++l;
}
switch (i)
{
int x;
int l = 3; /* { dg-warning "statement will never be executed" } */
++l, ++x;
}
switch (i)
if (j != 3) /* { dg-warning "statement will never be executed" } */
foo (j);
switch (i)
while (1)
foo (0);
switch (i)
while (i > 5) { }
switch (i)
goto X; /* { dg-warning "statement will never be executed" } */
X:
switch (i)
do
foo (1);
while (1);
switch (i)
for (;;)
foo (-1);
switch (i)
default:
j = 6;
switch (i)
{
typedef int T;
case 3:
{
T x = 5;
foo (x);
}
}
switch (i)
{
static int g;
default:
foo (g);
}
switch (i)
{
L:
j = 16;
default:
if (j < 5)
goto L;
break;
}
}
|
