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gerrit-public.fairphone.software / platform / external / clang / 3ea9e33ea25e0c2b12db56418ba3f994eb662c04 / . / test / CodeGen / arm-apcs-zerolength-bitfield.c
blob: 763db65063fcec6847e552f93c43719735736af4 [file] [log] [blame]
Jim Grosbachf7947052012-07-09 18:34:21 +0000[diff] [blame]1// REQUIRES: arm-registered-target
Chad Rosier4ab00242011-08-04 00:19:13 +0000[diff] [blame]2// RUN: %clang_cc1 -target-abi apcs-gnu -triple armv7-apple-darwin10 %s -verify
Andy Gibbs8e8fb3b2012-10-19 12:44:48 +0000[diff] [blame]3// expected-no-diagnostics
Chad Rosier61a62212011-08-04 01:21:14 +0000[diff] [blame]4//
5// Note: gcc forces the alignment to 4 bytes, regardless of the type of the
6// zero length bitfield.
7// rdar://9859156
Chad Rosier4ab00242011-08-04 00:19:13 +0000[diff] [blame]8
9#include <stddef.h>
10
11struct t1
12{
13 int foo : 1;
14 char : 0;
15 char bar;
16};
Chad Rosier61a62212011-08-04 01:21:14 +0000[diff] [blame]17static int arr1_offset[(offsetof(struct t1, bar) == 4) ? 0 : -1];
18static int arr1_sizeof[(sizeof(struct t1) == 8) ? 0 : -1];
Chad Rosier4ab00242011-08-04 00:19:13 +0000[diff] [blame]19
20struct t2
21{
22 int foo : 1;
23 short : 0;
24 char bar;
25};
Chad Rosier61a62212011-08-04 01:21:14 +0000[diff] [blame]26static int arr2_offset[(offsetof(struct t2, bar) == 4) ? 0 : -1];
27static int arr2_sizeof[(sizeof(struct t2) == 8) ? 0 : -1];
Chad Rosier4ab00242011-08-04 00:19:13 +0000[diff] [blame]28
29struct t3
30{
31 int foo : 1;
32 int : 0;
33 char bar;
34};
Chad Rosier61a62212011-08-04 01:21:14 +0000[diff] [blame]35static int arr3_offset[(offsetof(struct t3, bar) == 4) ? 0 : -1];
36static int arr3_sizeof[(sizeof(struct t3) == 8) ? 0 : -1];
Chad Rosier4ab00242011-08-04 00:19:13 +0000[diff] [blame]37
38struct t4
39{
40 int foo : 1;
41 long : 0;
42 char bar;
43};
Chad Rosier61a62212011-08-04 01:21:14 +0000[diff] [blame]44static int arr4_offset[(offsetof(struct t4, bar) == 4) ? 0 : -1];
45static int arr4_sizeof[(sizeof(struct t4) == 8) ? 0 : -1];
Chad Rosier4ab00242011-08-04 00:19:13 +0000[diff] [blame]46
47struct t5
48{
49 int foo : 1;
50 long long : 0;
51 char bar;
52};
Chad Rosier61a62212011-08-04 01:21:14 +0000[diff] [blame]53static int arr5_offset[(offsetof(struct t5, bar) == 4) ? 0 : -1];
54static int arr5_sizeof[(sizeof(struct t5) == 8) ? 0 : -1];
Chad Rosier4ab00242011-08-04 00:19:13 +0000[diff] [blame]55
56struct t6
57{
58 int foo : 1;
59 char : 0;
60 char bar : 1;
61 char bar2;
62};
Chad Rosierb8fca902011-08-05 22:38:04 +0000[diff] [blame]63static int arr6_offset[(offsetof(struct t6, bar2) == 5) ? 0 : -1];
64static int arr6_sizeof[(sizeof(struct t6) == 8) ? 0 : -1];
Chad Rosier4ab00242011-08-04 00:19:13 +0000[diff] [blame]65
66struct t7
67{
68 int foo : 1;
69 short : 0;
70 char bar1 : 1;
71 char bar2;
72};
Chad Rosierb8fca902011-08-05 22:38:04 +0000[diff] [blame]73static int arr7_offset[(offsetof(struct t7, bar2) == 5) ? 0 : -1];
74static int arr7_sizeof[(sizeof(struct t7) == 8) ? 0 : -1];
Chad Rosier4ab00242011-08-04 00:19:13 +0000[diff] [blame]75
76struct t8
77{
78 int foo : 1;
79 int : 0;
80 char bar1 : 1;
81 char bar2;
82};
Chad Rosierb8fca902011-08-05 22:38:04 +0000[diff] [blame]83static int arr8_offset[(offsetof(struct t8, bar2) == 5) ? 0 : -1];
84static int arr8_sizeof[(sizeof(struct t8) == 8) ? 0 : -1];
Chad Rosier4ab00242011-08-04 00:19:13 +0000[diff] [blame]85
86struct t9
87{
88 int foo : 1;
89 long : 0;
90 char bar1 : 1;
91 char bar2;
92};
Chad Rosierb8fca902011-08-05 22:38:04 +0000[diff] [blame]93static int arr9_offset[(offsetof(struct t9, bar2) == 5) ? 0 : -1];
94static int arr9_sizeof[(sizeof(struct t9) == 8) ? 0 : -1];
Chad Rosier4ab00242011-08-04 00:19:13 +0000[diff] [blame]95
96struct t10
97{
98 int foo : 1;
99 long long : 0;
100 char bar1 : 1;
101 char bar2;
102};
Chad Rosierb8fca902011-08-05 22:38:04 +0000[diff] [blame]103static int arr10_offset[(offsetof(struct t10, bar2) == 5) ? 0 : -1];
104static int arr10_sizeof[(sizeof(struct t10) == 8) ? 0 : -1];
Chad Rosier4ab00242011-08-04 00:19:13 +0000[diff] [blame]105
106struct t11
107{
108 int foo : 1;
109 long long : 0;
110 char : 0;
111 char bar1 : 1;
112 char bar2;
113};
Chad Rosierb8fca902011-08-05 22:38:04 +0000[diff] [blame]114static int arr11_offset[(offsetof(struct t11, bar2) == 5) ? 0 : -1];
115static int arr11_sizeof[(sizeof(struct t11) == 8) ? 0 : -1];
Chad Rosier4ab00242011-08-04 00:19:13 +0000[diff] [blame]116
Chad Rosier61a62212011-08-04 01:21:14 +0000[diff] [blame]117struct t12
118{
119 int foo : 1;
120 char : 0;
121 long long : 0;
122 char : 0;
123 char bar;
124};
125static int arr12_offset[(offsetof(struct t12, bar) == 4) ? 0 : -1];
126static int arr12_sizeof[(sizeof(struct t12) == 8) ? 0 : -1];
127
Chad Rosierb8fca902011-08-05 22:38:04 +0000[diff] [blame]128struct t13
129{
130 char foo;
131 long : 0;
132 char bar;
133};
134static int arr13_offset[(offsetof(struct t13, bar) == 4) ? 0 : -1];
135static int arr13_sizeof[(sizeof(struct t13) == 8) ? 0 : -1];
136
137struct t14
138{
139 char foo1;
140 int : 0;
141 char foo2 : 1;
142 short foo3 : 16;
143 char : 0;
144 short foo4 : 16;
145 char bar1;
146 int : 0;
147 char bar2;
148};
149static int arr14_bar1_offset[(offsetof(struct t14, bar1) == 10) ? 0 : -1];
150static int arr14_bar2_offset[(offsetof(struct t14, bar2) == 12) ? 0 : -1];
151static int arr14_sizeof[(sizeof(struct t14) == 16) ? 0 : -1];
152
153struct t15
154{
155 char foo;
156 char : 0;
157 int : 0;
158 char bar;
159 long : 0;
160 char : 0;
161};
162static int arr15_offset[(offsetof(struct t15, bar) == 4) ? 0 : -1];
163static int arr15_sizeof[(sizeof(struct t15) == 8) ? 0 : -1];
164
165struct t16
166{
167 long : 0;
168 char bar;
169};
170static int arr16_offset[(offsetof(struct t16, bar) == 0) ? 0 : -1];
171static int arr16_sizeof[(sizeof(struct t16) == 4) ? 0 : -1];
172
173struct t17
174{
175 char foo;
176 long : 0;
177 long : 0;
178 char : 0;
179 char bar;
180};
181static int arr17_offset[(offsetof(struct t17, bar) == 4) ? 0 : -1];
182static int arr17_sizeof[(sizeof(struct t17) == 8) ? 0 : -1];
183
184struct t18
185{
186 long : 0;
187 long : 0;
188 char : 0;
189};
190static int arr18_sizeof[(sizeof(struct t18) == 0) ? 0 : -1];
191
192struct t19
193{
194 char foo1;
195 long foo2 : 1;
196 char : 0;
197 long foo3 : 32;
198 char bar;
199};
200static int arr19_offset[(offsetof(struct t19, bar) == 8) ? 0 : -1];
201static int arr19_sizeof[(sizeof(struct t19) == 12) ? 0 : -1];
202
203struct t20
204{
205 short : 0;
206 int foo : 1;
207 long : 0;
208 char bar;
209};
210static int arr20_offset[(offsetof(struct t20, bar) == 4) ? 0 : -1];
211static int arr20_sizeof[(sizeof(struct t20) == 8) ? 0 : -1];
212
213struct t21
214{
215 short : 0;
216 int foo1 : 1;
217 char : 0;
218 int foo2 : 16;
219 long : 0;
220 char bar1;
221 int bar2;
222 long bar3;
223 char foo3 : 8;
224 char : 0;
225 long : 0;
226 int foo4 : 32;
227 short foo5: 1;
228 long bar4;
229 short foo6: 16;
230 short foo7: 16;
231 short foo8: 16;
232};
233static int arr21_bar1_offset[(offsetof(struct t21, bar1) == 8) ? 0 : -1];
234static int arr21_bar2_offset[(offsetof(struct t21, bar2) == 12) ? 0 : -1];
235static int arr21_bar3_offset[(offsetof(struct t21, bar3) == 16) ? 0 : -1];
236static int arr21_bar4_offset[(offsetof(struct t21, bar4) == 32) ? 0 : -1];
237static int arr21_sizeof[(sizeof(struct t21) == 44) ? 0 : -1];
238
Chad Rosier4ab00242011-08-04 00:19:13 +0000[diff] [blame]239int main() {
240 return 0;
241}
242