1 | // RUN: %clang_cc1 -triple x86_64-apple-darwin -fsyntax-only -Wtautological-constant-out-of-range-compare -verify %s |
2 | // rdar://12202422 |
3 | |
4 | int value(void); |
5 | |
6 | int main() |
7 | { |
8 | int a = value(); |
9 | |
10 | if (a == 0x1234567812345678L) // expected-warning {{comparison of constant 1311768465173141112 with expression of type 'int' is always false}} |
11 | return 0; |
12 | if (a != 0x1234567812345678L) // expected-warning {{comparison of constant 1311768465173141112 with expression of type 'int' is always true}} |
13 | return 0; |
14 | if (a < 0x1234567812345678L) // expected-warning {{comparison of constant 1311768465173141112 with expression of type 'int' is always true}} |
15 | return 0; |
16 | if (a <= 0x1234567812345678L) // expected-warning {{comparison of constant 1311768465173141112 with expression of type 'int' is always true}} |
17 | return 0; |
18 | if (a > 0x1234567812345678L) // expected-warning {{comparison of constant 1311768465173141112 with expression of type 'int' is always false}} |
19 | return 0; |
20 | if (a >= 0x1234567812345678L) // expected-warning {{comparison of constant 1311768465173141112 with expression of type 'int' is always false}} |
21 | return 0; |
22 | |
23 | if (0x1234567812345678L == a) // expected-warning {{comparison of constant 1311768465173141112 with expression of type 'int' is always false}} |
24 | return 0; |
25 | if (0x1234567812345678L != a) // expected-warning {{comparison of constant 1311768465173141112 with expression of type 'int' is always true}} |
26 | return 0; |
27 | if (0x1234567812345678L < a) // expected-warning {{comparison of constant 1311768465173141112 with expression of type 'int' is always false}} |
28 | return 0; |
29 | if (0x1234567812345678L <= a) // expected-warning {{comparison of constant 1311768465173141112 with expression of type 'int' is always false}} |
30 | return 0; |
31 | if (0x1234567812345678L > a) // expected-warning {{comparison of constant 1311768465173141112 with expression of type 'int' is always true}} |
32 | return 0; |
33 | if (0x1234567812345678L >= a) // expected-warning {{comparison of constant 1311768465173141112 with expression of type 'int' is always true}} |
34 | return 0; |
35 | if (a == 0x1234567812345678LL) // expected-warning {{comparison of constant 1311768465173141112 with expression of type 'int' is always false}} |
36 | return 0; |
37 | if (a == -0x1234567812345678L) // expected-warning {{comparison of constant -1311768465173141112 with expression of type 'int' is always false}} |
38 | return 0; |
39 | if (a < -0x1234567812345678L) // expected-warning {{comparison of constant -1311768465173141112 with expression of type 'int' is always false}} |
40 | return 0; |
41 | if (a > -0x1234567812345678L) // expected-warning {{comparison of constant -1311768465173141112 with expression of type 'int' is always true}} |
42 | return 0; |
43 | if (a <= -0x1234567812345678L) // expected-warning {{comparison of constant -1311768465173141112 with expression of type 'int' is always false}} |
44 | return 0; |
45 | if (a >= -0x1234567812345678L) // expected-warning {{comparison of constant -1311768465173141112 with expression of type 'int' is always true}} |
46 | return 0; |
47 | |
48 | |
49 | if (a == 0x12345678L) // no warning |
50 | return 1; |
51 | |
52 | short s = value(); |
53 | if (s == 0x1234567812345678L) // expected-warning {{comparison of constant 1311768465173141112 with expression of type 'short' is always false}} |
54 | return 0; |
55 | if (s != 0x1234567812345678L) // expected-warning {{comparison of constant 1311768465173141112 with expression of type 'short' is always true}} |
56 | return 0; |
57 | if (s < 0x1234567812345678L) // expected-warning {{comparison of constant 1311768465173141112 with expression of type 'short' is always true}} |
58 | return 0; |
59 | if (s <= 0x1234567812345678L) // expected-warning {{comparison of constant 1311768465173141112 with expression of type 'short' is always true}} |
60 | return 0; |
61 | if (s > 0x1234567812345678L) // expected-warning {{comparison of constant 1311768465173141112 with expression of type 'short' is always false}} |
62 | return 0; |
63 | if (s >= 0x1234567812345678L) // expected-warning {{comparison of constant 1311768465173141112 with expression of type 'short' is always false}} |
64 | return 0; |
65 | |
66 | if (0x1234567812345678L == s) // expected-warning {{comparison of constant 1311768465173141112 with expression of type 'short' is always false}} |
67 | return 0; |
68 | if (0x1234567812345678L != s) // expected-warning {{comparison of constant 1311768465173141112 with expression of type 'short' is always true}} |
69 | return 0; |
70 | if (0x1234567812345678L < s) // expected-warning {{comparison of constant 1311768465173141112 with expression of type 'short' is always false}} |
71 | return 0; |
72 | if (0x1234567812345678L <= s) // expected-warning {{comparison of constant 1311768465173141112 with expression of type 'short' is always false}} |
73 | return 0; |
74 | if (0x1234567812345678L > s) // expected-warning {{comparison of constant 1311768465173141112 with expression of type 'short' is always true}} |
75 | return 0; |
76 | if (0x1234567812345678L >= s) // expected-warning {{comparison of constant 1311768465173141112 with expression of type 'short' is always true}} |
77 | return 0; |
78 | |
79 | long l = value(); |
80 | if (l == 0x1234567812345678L) |
81 | return 0; |
82 | if (l != 0x1234567812345678L) |
83 | return 0; |
84 | if (l < 0x1234567812345678L) |
85 | return 0; |
86 | if (l <= 0x1234567812345678L) |
87 | return 0; |
88 | if (l > 0x1234567812345678L) |
89 | return 0; |
90 | if (l >= 0x1234567812345678L) |
91 | return 0; |
92 | |
93 | if (0x1234567812345678L == l) |
94 | return 0; |
95 | if (0x1234567812345678L != l) |
96 | return 0; |
97 | if (0x1234567812345678L < l) |
98 | return 0; |
99 | if (0x1234567812345678L <= l) |
100 | return 0; |
101 | if (0x1234567812345678L > l) |
102 | return 0; |
103 | if (0x1234567812345678L >= l) |
104 | return 0; |
105 | |
106 | enum E { |
107 | yes, |
108 | no, |
109 | maybe |
110 | }; |
111 | enum E e; |
112 | |
113 | if (e == 0x1234567812345678L) // expected-warning {{comparison of constant 1311768465173141112 with expression of type 'enum E' is always false}} |
114 | return 0; |
115 | |
116 | return 1; |
117 | } |
118 | |