1 /* PR tree-optimization/86532 - Wrong code due to a wrong strlen folding
2 starting with r262522
3 Exercise strlen() with a multi-dimensional array of strings with
4 embedded nuls. */
5
6 extern __SIZE_TYPE__ strlen (const char*);
7
8 static const char a[2][3][9] = {
9 { "1", "1\0002" },
10 { "12\0003", "123\0004" }
11 };
12
13 volatile int v0 = 0;
14 volatile int v1 = 1;
15 volatile int v2 = 2;
16 volatile int v3 = 3;
17 volatile int v4 = 4;
18 volatile int v5 = 5;
19 volatile int v6 = 6;
20 volatile int v7 = 7;
21
22 #define A(expr) \
23 ((expr) ? (void)0 : (__builtin_printf ("assertion on line %i: %s\n", \
24 __LINE__, #expr), \
25 __builtin_abort ()))
26
27 void test_array_ref (void)
28 {
29 int i0 = 0;
30 int i1 = i0 + 1;
31 int i2 = i1 + 1;
32 int i3 = i2 + 1;
33 int i4 = i3 + 1;
34 int i5 = i4 + 1;
35 int i6 = i5 + 1;
36 int i7 = i6 + 1;
37
38 A (strlen (a[0][0]) == 1);
39 A (strlen (a[0][1]) == 1);
40
41 A (strlen (a[1][0]) == 2);
42 A (strlen (a[1][1]) == 3);
43
44 A (strlen (&a[0][0][0]) == 1);
45 A (strlen (&a[0][1][0]) == 1);
46
47 A (strlen (&a[1][0][0]) == 2);
48 A (strlen (&a[1][1][0]) == 3);
49
50 A (strlen (&a[0][0][0] + 1) == 0);
51 A (strlen (&a[0][1][0] + 1) == 0);
52 A (strlen (&a[0][1][0] + 2) == 1);
53 A (strlen (&a[0][1][0] + 3) == 0);
54 A (strlen (&a[0][1][0] + 7) == 0);
55
56 A (strlen (&a[1][0][0] + 1) == 1);
57 A (strlen (&a[1][1][0] + 1) == 2);
58 A (strlen (&a[1][1][0] + 2) == 1);
59 A (strlen (&a[1][1][0] + 7) == 0);
60
61
62 A (strlen (a[i0][i0]) == 1);
63 A (strlen (a[i0][i1]) == 1);
64
65 A (strlen (a[i1][i0]) == 2);
66 A (strlen (a[i1][i1]) == 3);
67
68 A (strlen (&a[i0][i0][i0]) == 1);
69 A (strlen (&a[i0][i1][i0]) == 1);
70 A (strlen (&a[i0][i1][i1]) == 0);
71 A (strlen (&a[i0][i1][i2]) == 1);
72 A (strlen (&a[i0][i1][i3]) == 0);
73 A (strlen (&a[i0][i1][i3]) == 0);
74
75 A (strlen (&a[i1][i0][i0]) == 2);
76 A (strlen (&a[i1][i1][i0]) == 3);
77 A (strlen (&a[i1][i1][i1]) == 2);
78 A (strlen (&a[i1][i1][i2]) == 1);
79 A (strlen (&a[i1][i1][i3]) == 0);
80 A (strlen (&a[i1][i1][i4]) == 1);
81 A (strlen (&a[i1][i1][i5]) == 0);
82 A (strlen (&a[i1][i1][i6]) == 0);
83 A (strlen (&a[i1][i1][i7]) == 0);
84
85 A (strlen (&a[i0][i0][i0] + i1) == 0);
86 A (strlen (&a[i0][i1][i0] + i1) == 0);
87 A (strlen (&a[i0][i1][i0] + i7) == 0);
88
89 A (strlen (&a[i1][i0][i0] + i1) == 1);
90 A (strlen (&a[i1][i1][i0] + i1) == 2);
91 A (strlen (&a[i1][i1][i0] + i2) == 1);
92 A (strlen (&a[i1][i1][i0] + i3) == 0);
93 A (strlen (&a[i1][i1][i0] + i4) == 1);
94 A (strlen (&a[i1][i1][i0] + i5) == 0);
95 A (strlen (&a[i1][i1][i0] + i6) == 0);
96 A (strlen (&a[i1][i1][i0] + i7) == 0);
97
98
99 A (strlen (a[i0][i0]) == 1);
100 A (strlen (a[i0][i1]) == 1);
101
102 A (strlen (a[i1][i0]) == 2);
103 A (strlen (a[i1][i1]) == 3);
104
105 A (strlen (&a[i0][i0][i0]) == 1);
106 A (strlen (&a[i0][i1][i0]) == 1);
107
108 A (strlen (&a[i1][i0][i0]) == 2);
109 A (strlen (&a[i1][i1][i0]) == 3);
110
111 A (strlen (&a[i0][i0][i0] + v1) == 0);
112 A (strlen (&a[i0][i0][i0] + v2) == 0);
113 A (strlen (&a[i0][i0][i0] + v7) == 0);
114
115 A (strlen (&a[i0][i1][i0] + v1) == 0);
116 A (strlen (&a[i0][i1][i0] + v2) == 1);
117 A (strlen (&a[i0][i1][i0] + v3) == 0);
118
119 A (strlen (&a[i1][i0][i0] + v1) == 1);
120 A (strlen (&a[i1][i1][i0] + v1) == 2);
121 A (strlen (&a[i1][i1][i0] + v2) == 1);
122 A (strlen (&a[i1][i1][i0] + v3) == 0);
123 A (strlen (&a[i1][i1][i0] + v4) == 1);
124 A (strlen (&a[i1][i1][i0] + v5) == 0);
125 A (strlen (&a[i1][i1][i0] + v6) == 0);
126 A (strlen (&a[i1][i1][i0] + v7) == 0);
127 }
128
129 int main (void)
130 {
131 test_array_ref ();
132 }