1 | // RUN: %clang_cc1 -fsyntax-only -Wlogical-not-parentheses -verify %s |
2 | // RUN: %clang_cc1 -fsyntax-only -Wlogical-not-parentheses -fdiagnostics-parseable-fixits %s 2>&1 | FileCheck %s |
3 | |
4 | int getInt(); |
5 | |
6 | int test1(int i1, int i2) { |
7 | int ret; |
8 | |
9 | ret = !i1 == i2; |
10 | // expected-warning@-1 {{logical not is only applied to the left hand side of this comparison}} |
11 | // expected-note@-2 {{add parentheses after the '!' to evaluate the comparison first}} |
12 | // expected-note@-3 {{add parentheses around left hand side expression to silence this warning}} |
13 | // CHECK: warn-logical-not-compare.c:[[line:[0-9]*]]:9: warning |
14 | // CHECK: to evaluate the comparison first |
15 | // CHECK: fix-it:"{{.*}}":{[[line]]:10-[[line]]:10}:"(" |
16 | // CHECK: fix-it:"{{.*}}":{[[line]]:18-[[line]]:18}:")" |
17 | // CHECK: to silence this warning |
18 | // CHECK: fix-it:"{{.*}}":{[[line]]:9-[[line]]:9}:"(" |
19 | // CHECK: fix-it:"{{.*}}":{[[line]]:12-[[line]]:12}:")" |
20 | |
21 | ret = !i1 != i2; |
22 | //expected-warning@-1 {{logical not is only applied to the left hand side of this comparison}} |
23 | // expected-note@-2 {{add parentheses after the '!' to evaluate the comparison first}} |
24 | // expected-note@-3 {{add parentheses around left hand side expression to silence this warning}} |
25 | // CHECK: warn-logical-not-compare.c:[[line:[0-9]*]]:9: warning |
26 | // CHECK: to evaluate the comparison first |
27 | // CHECK: fix-it:"{{.*}}":{[[line]]:10-[[line]]:10}:"(" |
28 | // CHECK: fix-it:"{{.*}}":{[[line]]:18-[[line]]:18}:")" |
29 | // CHECK: to silence this warning |
30 | // CHECK: fix-it:"{{.*}}":{[[line]]:9-[[line]]:9}:"(" |
31 | // CHECK: fix-it:"{{.*}}":{[[line]]:12-[[line]]:12}:")" |
32 | |
33 | ret = !i1 < i2; |
34 | //expected-warning@-1 {{logical not is only applied to the left hand side of this comparison}} |
35 | // expected-note@-2 {{add parentheses after the '!' to evaluate the comparison first}} |
36 | // expected-note@-3 {{add parentheses around left hand side expression to silence this warning}} |
37 | // CHECK: warn-logical-not-compare.c:[[line:[0-9]*]]:9: warning |
38 | // CHECK: to evaluate the comparison first |
39 | // CHECK: fix-it:"{{.*}}":{[[line]]:10-[[line]]:10}:"(" |
40 | // CHECK: fix-it:"{{.*}}":{[[line]]:17-[[line]]:17}:")" |
41 | // CHECK: to silence this warning |
42 | // CHECK: fix-it:"{{.*}}":{[[line]]:9-[[line]]:9}:"(" |
43 | // CHECK: fix-it:"{{.*}}":{[[line]]:12-[[line]]:12}:")" |
44 | |
45 | ret = !i1 > i2; |
46 | //expected-warning@-1 {{logical not is only applied to the left hand side of this comparison}} |
47 | // expected-note@-2 {{add parentheses after the '!' to evaluate the comparison first}} |
48 | // expected-note@-3 {{add parentheses around left hand side expression to silence this warning}} |
49 | // CHECK: warn-logical-not-compare.c:[[line:[0-9]*]]:9: warning |
50 | // CHECK: to evaluate the comparison first |
51 | // CHECK: fix-it:"{{.*}}":{[[line]]:10-[[line]]:10}:"(" |
52 | // CHECK: fix-it:"{{.*}}":{[[line]]:17-[[line]]:17}:")" |
53 | // CHECK: to silence this warning |
54 | // CHECK: fix-it:"{{.*}}":{[[line]]:9-[[line]]:9}:"(" |
55 | // CHECK: fix-it:"{{.*}}":{[[line]]:12-[[line]]:12}:")" |
56 | |
57 | ret = !i1 <= i2; |
58 | //expected-warning@-1 {{logical not is only applied to the left hand side of this comparison}} |
59 | // expected-note@-2 {{add parentheses after the '!' to evaluate the comparison first}} |
60 | // expected-note@-3 {{add parentheses around left hand side expression to silence this warning}} |
61 | // CHECK: warn-logical-not-compare.c:[[line:[0-9]*]]:9: warning |
62 | // CHECK: to evaluate the comparison first |
63 | // CHECK: fix-it:"{{.*}}":{[[line]]:10-[[line]]:10}:"(" |
64 | // CHECK: fix-it:"{{.*}}":{[[line]]:18-[[line]]:18}:")" |
65 | // CHECK: to silence this warning |
66 | // CHECK: fix-it:"{{.*}}":{[[line]]:9-[[line]]:9}:"(" |
67 | // CHECK: fix-it:"{{.*}}":{[[line]]:12-[[line]]:12}:")" |
68 | |
69 | ret = !i1 >= i2; |
70 | //expected-warning@-1 {{logical not is only applied to the left hand side of this comparison}} |
71 | // expected-note@-2 {{add parentheses after the '!' to evaluate the comparison first}} |
72 | // expected-note@-3 {{add parentheses around left hand side expression to silence this warning}} |
73 | // CHECK: warn-logical-not-compare.c:[[line:[0-9]*]]:9: warning |
74 | // CHECK: to evaluate the comparison first |
75 | // CHECK: fix-it:"{{.*}}":{[[line]]:10-[[line]]:10}:"(" |
76 | // CHECK: fix-it:"{{.*}}":{[[line]]:18-[[line]]:18}:")" |
77 | // CHECK: to silence this warning |
78 | // CHECK: fix-it:"{{.*}}":{[[line]]:9-[[line]]:9}:"(" |
79 | // CHECK: fix-it:"{{.*}}":{[[line]]:12-[[line]]:12}:")" |
80 | |
81 | ret = i1 == i2; |
82 | ret = i1 != i2; |
83 | ret = i1 < i2; |
84 | ret = i1 > i2; |
85 | ret = i1 <= i2; |
86 | ret = i1 >= i2; |
87 | |
88 | // Warning silenced by parens. |
89 | ret = (!i1) == i2; |
90 | ret = (!i1) != i2; |
91 | ret = (!i1) < i2; |
92 | ret = (!i1) > i2; |
93 | ret = (!i1) <= i2; |
94 | ret = (!i1) >= i2; |
95 | |
96 | ret = !getInt() == i1; |
97 | // expected-warning@-1 {{logical not is only applied to the left hand side of this comparison}} |
98 | // expected-note@-2 {{add parentheses after the '!' to evaluate the comparison first}} |
99 | // expected-note@-3 {{add parentheses around left hand side expression to silence this warning}} |
100 | // CHECK: warn-logical-not-compare.c:[[line:[0-9]*]]:9: warning |
101 | // CHECK: to evaluate the comparison first |
102 | // CHECK: fix-it:"{{.*}}":{[[line]]:10-[[line]]:10}:"(" |
103 | // CHECK: fix-it:"{{.*}}":{[[line]]:24-[[line]]:24}:")" |
104 | // CHECK: to silence this warning |
105 | // CHECK: fix-it:"{{.*}}":{[[line]]:9-[[line]]:9}:"(" |
106 | // CHECK: fix-it:"{{.*}}":{[[line]]:18-[[line]]:18}:")" |
107 | |
108 | ret = (!getInt()) == i1; |
109 | return ret; |
110 | } |
111 | |
112 | enum E {e1, e2}; |
113 | enum E getE(); |
114 | |
115 | int test2 (enum E e) { |
116 | int ret; |
117 | ret = e == e1; |
118 | ret = e == getE(); |
119 | ret = getE() == e1; |
120 | ret = getE() == getE(); |
121 | |
122 | ret = !e == e1; |
123 | // expected-warning@-1 {{logical not is only applied to the left hand side of this comparison}} |
124 | // expected-note@-2 {{add parentheses after the '!' to evaluate the comparison first}} |
125 | // expected-note@-3 {{add parentheses around left hand side expression to silence this warning}} |
126 | // CHECK: warn-logical-not-compare.c:[[line:[0-9]*]]:9: warning |
127 | // CHECK: to evaluate the comparison first |
128 | // CHECK: fix-it:"{{.*}}":{[[line]]:10-[[line]]:10}:"(" |
129 | // CHECK: fix-it:"{{.*}}":{[[line]]:17-[[line]]:17}:")" |
130 | // CHECK: to silence this warning |
131 | // CHECK: fix-it:"{{.*}}":{[[line]]:9-[[line]]:9}:"(" |
132 | // CHECK: fix-it:"{{.*}}":{[[line]]:11-[[line]]:11}:")" |
133 | |
134 | ret = !e == getE(); |
135 | // expected-warning@-1 {{logical not is only applied to the left hand side of this comparison}} |
136 | // expected-note@-2 {{add parentheses after the '!' to evaluate the comparison first}} |
137 | // expected-note@-3 {{add parentheses around left hand side expression to silence this warning}} |
138 | // CHECK: warn-logical-not-compare.c:[[line:[0-9]*]]:9: warning |
139 | // CHECK: to evaluate the comparison first |
140 | // CHECK: fix-it:"{{.*}}":{[[line]]:10-[[line]]:10}:"(" |
141 | // CHECK: fix-it:"{{.*}}":{[[line]]:21-[[line]]:21}:")" |
142 | // CHECK: to silence this warning |
143 | // CHECK: fix-it:"{{.*}}":{[[line]]:9-[[line]]:9}:"(" |
144 | // CHECK: fix-it:"{{.*}}":{[[line]]:11-[[line]]:11}:")" |
145 | |
146 | ret = !getE() == e1; |
147 | // expected-warning@-1 {{logical not is only applied to the left hand side of this comparison}} |
148 | // expected-note@-2 {{add parentheses after the '!' to evaluate the comparison first}} |
149 | // expected-note@-3 {{add parentheses around left hand side expression to silence this warning}} |
150 | // CHECK: warn-logical-not-compare.c:[[line:[0-9]*]]:9: warning |
151 | // CHECK: to evaluate the comparison first |
152 | // CHECK: fix-it:"{{.*}}":{[[line]]:10-[[line]]:10}:"(" |
153 | // CHECK: fix-it:"{{.*}}":{[[line]]:22-[[line]]:22}:")" |
154 | // CHECK: to silence this warning |
155 | // CHECK: fix-it:"{{.*}}":{[[line]]:9-[[line]]:9}:"(" |
156 | // CHECK: fix-it:"{{.*}}":{[[line]]:16-[[line]]:16}:")" |
157 | |
158 | ret = !getE() == getE(); |
159 | // expected-warning@-1 {{logical not is only applied to the left hand side of this comparison}} |
160 | // expected-note@-2 {{add parentheses after the '!' to evaluate the comparison first}} |
161 | // expected-note@-3 {{add parentheses around left hand side expression to silence this warning}} |
162 | // CHECK: warn-logical-not-compare.c:[[line:[0-9]*]]:9: warning |
163 | // CHECK: to evaluate the comparison first |
164 | // CHECK: fix-it:"{{.*}}":{[[line]]:10-[[line]]:10}:"(" |
165 | // CHECK: fix-it:"{{.*}}":{[[line]]:26-[[line]]:26}:")" |
166 | // CHECK: to silence this warning |
167 | // CHECK: fix-it:"{{.*}}":{[[line]]:9-[[line]]:9}:"(" |
168 | // CHECK: fix-it:"{{.*}}":{[[line]]:16-[[line]]:16}:")" |
169 | |
170 | ret = !(e == e1); |
171 | ret = !(e == getE()); |
172 | ret = !(getE() == e1); |
173 | ret = !(getE() == getE()); |
174 | |
175 | ret = (!e) == e1; |
176 | ret = (!e) == getE(); |
177 | ret = (!getE()) == e1; |
178 | ret = (!getE()) == getE(); |
179 | |
180 | return ret; |
181 | } |
182 | |
183 | int PR16673(int x) { |
184 | int ret; |
185 | // Make sure we don't emit a fixit for the left paren, but not the right paren. |
186 | #define X(x) x |
187 | ret = X(!x == 1 && 1); |
188 | // expected-warning@-1 {{logical not is only applied to the left hand side of this comparison}} |
189 | // expected-note@-2 {{add parentheses after the '!' to evaluate the comparison first}} |
190 | // expected-note@-3 {{add parentheses around left hand side expression to silence this warning}} |
191 | // CHECK: warn-logical-not-compare.c:[[line:[0-9]*]]:11: warning |
192 | // CHECK: to evaluate the comparison first |
193 | // CHECK-NOT: fix-it |
194 | // CHECK: to silence this warning |
195 | // CHECK-NOT: fix-it |
196 | return ret; |
197 | } |
198 | |
199 | int compare_pointers(int* a, int* b) { |
200 | int ret; |
201 | ret = !!a == !!b; |
202 | ret = !!a != !!b; |
203 | return ret; |
204 | } |
205 | |