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
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
|
/* PR middle-end/47893 */
/* { dg-do run } */
/* { dg-options "-O2" } */
/* { dg-options "-O2 -mtune=atom -fno-omit-frame-pointer -fno-strict-aliasing" { target { { i?86-*-* x86_64-*-* } && ilp32 } } } */
extern void abort (void);
struct S
{
unsigned s1:4, s2:2, s3:2, s4:2, s5:2, s6:1, s7:1, s8:1, s9:1, s10:1;
int s11:16; unsigned s12:4; int s13:16; unsigned s14:2;
int s15:16; unsigned s16:4; int s17:16; unsigned s18:2;
};
struct T
{
unsigned t[3];
};
struct U
{
unsigned u1, u2;
};
struct V;
struct W
{
char w1[24]; struct V *w2; unsigned w3; char w4[28912];
unsigned int w5; char w6[60];
};
struct X
{
unsigned int x[2];
};
struct V
{
int v1;
struct X v2[3];
char v3[28];
};
struct Y
{
void *y1;
char y2[3076];
struct T y3[32];
char y4[1052];
};
volatile struct S v1 = { .s15 = -1, .s16 = 15, .s17 = -1, .s18 = 3 };
__attribute__ ((noinline, noclone))
int
fn1 (int x)
{
int r;
__asm__ volatile ("" : "=r" (r) : "0" (1), "r" (x) : "memory");
return r;
}
volatile int cnt;
__attribute__ ((noinline, noclone))
#ifdef __i386__
__attribute__ ((regparm (2)))
#endif
struct S
fn2 (struct Y *x, const struct X *y)
{
if (++cnt > 1)
abort ();
__asm__ volatile ("" : : "r" (x), "r" (y) : "memory");
return v1;
}
__attribute__ ((noinline, noclone))
void fn3 (void *x, unsigned y, const struct S *z, unsigned w)
{
__asm__ volatile ("" : : "r" (x), "r" (y), "r" (z), "r" (w) : "memory");
}
volatile struct U v2;
__attribute__ ((noinline, noclone))
struct U
fn4 (void *x, unsigned y)
{
__asm__ volatile ("" : : "r" (x), "r" (y) : "memory");
return v2;
}
__attribute__ ((noinline, noclone))
struct S
fn5 (void *x)
{
__asm__ volatile ("" : : "r" (x) : "memory");
return v1;
}
volatile struct T v3;
__attribute__ ((noinline, noclone))
struct T fn6 (void *x)
{
__asm__ volatile ("" : : "r" (x) : "memory");
return v3;
}
__attribute__ ((noinline, noclone))
struct T fn7 (void *x, unsigned y, unsigned z)
{
__asm__ volatile ("" : : "r" (x), "r" (y), "r" (z) : "memory");
return v3;
}
static void
fn8 (struct Y *x, const struct V *y)
{
void *a = x->y1;
struct S b[4];
unsigned i, c;
c = fn1 (y->v1);
for (i = 0; i < c; i++)
b[i] = fn2 (x, &y->v2[i]);
fn3 (a, y->v1, b, c);
}
static inline void
fn9 (void *x, struct S y __attribute__((unused)))
{
fn4 (x, 8);
}
static void
fn10 (struct Y *x)
{
void *a = x->y1;
struct T b __attribute__((unused)) = fn6 (a);
fn9 (a, fn5 (a));
}
__attribute__((noinline, noclone))
int
fn11 (unsigned int x, void *y, const struct W *z,
unsigned int w, const char *v, const char *u)
{
struct Y a, *t;
unsigned i;
t = &a;
__builtin_memset (t, 0, sizeof *t);
t->y1 = y;
if (x == 0)
{
if (z->w3 & 1)
fn10 (t);
for (i = 0; i < w; i++)
{
if (v[i] == 0)
t->y3[i] = fn7 (y, 0, u[i]);
else
return 0;
}
}
else
for (i = 0; i < w; i++)
t->y3[i] = fn7 (y, v[i], u[i]);
for (i = 0; i < z->w5; i++)
fn8 (t, &z->w2[i]);
return 0;
}
volatile int i;
const char *volatile p = "";
int
main ()
{
struct V v = { .v1 = 0 };
struct W w = { .w5 = 1, .w2 = &v };
fn11 (i + 1, (void *) p, &w, i, (const char *) p, (const char *) p);
if (cnt != 1)
abort ();
return 0;
}
|