bitfield-layout_1.c source code [clang_source_code/test/Sema/bitfield-layout

1	// RUN: %clang_cc1 %s -fsyntax-only -verify -triple=i686-apple-darwin9
2	// RUN: %clang_cc1 %s -fsyntax-only -verify -triple=arm-linux-gnueabihf
3	// RUN: %clang_cc1 %s -fsyntax-only -verify -triple=aarch64-linux-gnu
4	// RUN: %clang_cc1 %s -fsyntax-only -verify -triple=x86_64-pc-linux-gnu
5	// expected-no-diagnostics
6
7	#define CHECK_SIZE(name, size) \
8	extern int name##_1[sizeof(name) == size ? 1 : -1];
9
10
11	struct __attribute__((packed)) {
12	int a;
13	int b : 4;
14	int c : 32;
15	} s0;
16	CHECK_SIZE(s0,9)
17
18	#pragma pack (1)
19	struct {
20	int a;
21	int b : 4;
22	int c : 32;
23	} s1;
24	CHECK_SIZE(s1,9)
25
26	#pragma pack (2)
27	struct {
28	int a;
29	int b : 4;
30	int c : 32;
31	} s2;
32	CHECK_SIZE(s2,10)
33
34	#pragma pack (2)
35	struct __attribute__((packed)) {
36	int a;
37	int b : 4;
38	int c : 32;
39	} s3;
40	CHECK_SIZE(s3,10)
41
42	#pragma pack (4)
43	struct __attribute__((packed)) {
44	int a;
45	int b : 4;
46	int c : 32;
47	} s4;
48	CHECK_SIZE(s4,12)
49
50	#pragma pack (16)
51	struct {
52	int a;
53	int __attribute__((packed)) b : 4;
54	int __attribute__((packed)) c : 32;
55	} s41;
56	CHECK_SIZE(s41,12)
57
58	#pragma pack (16)
59	struct {
60	int a;
61	int b : 4;
62	int c : 32;
63	} s5;
64	CHECK_SIZE(s5,12)
65
66	#pragma pack (1)
67	struct __attribute__((aligned(4))) {
68	int a;
69	int b : 4;
70	int c : 32;
71	} s6;
72	CHECK_SIZE(s6,12)
73
74	#pragma pack (2)
75	struct {
76	char a;
77	int b : 4;
78	int c : 32;
79	char s;
80	} s7;
81	CHECK_SIZE(s7,8)
82
83	#pragma pack (1)
84	struct {
85	char a;
86	int b : 4;
87	int c : 28;
88	char s;
89	} s8;
90	CHECK_SIZE(s8,6)
91
92	#pragma pack (8)
93	struct {
94	char a;
95	int b : 4;
96	int c : 28;
97	char s;
98	} s9;
99	CHECK_SIZE(s9,8)
100
101	#pragma pack (8)
102	struct {
103	char a;
104	char s;
105	} s10;
106	CHECK_SIZE(s10,2)
107
108	#pragma pack(4)
109	struct {
110	char a;
111	int b : 4;
112	int c : 28;
113	char s1;
114	char s2;
115	char s3;
116	} s11;
117	CHECK_SIZE(s11,8)
118
119	#pragma pack(4)
120	struct {
121	short s1;
122	int a1 : 17;
123	int a2 : 17;
124	int a3 : 30;
125	short s2;
126	} s12;
127	CHECK_SIZE(s12,12)
128
129	#pragma pack(4)
130	struct {
131	char c1;
132	int i1 : 17;
133	int i2 : 17;
134	int i3 : 30;
135	char c2;
136	} s13;
137	CHECK_SIZE(s13,12)
138
139	#pragma pack(2)
140	struct {
141	char a;
142	int s;
143	} s14;
144	CHECK_SIZE(s14,6)
145
146	#pragma pack(4)
147	struct {
148	char a;
149	short s;
150	} s15;
151	CHECK_SIZE(s15,4)
152
153	#pragma pack(2)
154	struct {
155	char a;
156	int b : 4;
157	int c : 28;
158	char s1;
159	char s2;
160	char s3;
161	} s16;
162	CHECK_SIZE(s16,8)
163
164	#pragma pack (16)
165	struct {
166	int __attribute__((packed)) a;
167	int __attribute__((packed)) b : 4;
168	int __attribute__((packed)) c : 32;
169	} s17;
170	CHECK_SIZE(s17,12)
171
172	#pragma pack (16)
173	struct {
174	int __attribute__((aligned(8))) a;
175	int __attribute__((aligned(8))) b : 4;
176	int __attribute__((aligned(8))) c : 32;
177	} s18;
178	CHECK_SIZE(s18,24)
179
180	#pragma pack (16)
181	struct {
182	int __attribute__((aligned(1))) a;
183	int __attribute__((aligned(1))) b : 4;
184	int __attribute__((aligned(1))) c : 32;
185	} s19;
186	CHECK_SIZE(s19,12)
187
188	#pragma pack (1)
189	struct __attribute__((aligned(8))) {
190	int a;
191	int b : 4;
192	int c : 32;
193	} s20;
194	CHECK_SIZE(s20,16)
195
196	#pragma pack (2)
197	struct {
198	int __attribute__((aligned(8))) a;
199	int __attribute__((aligned(8))) b : 4;
200	int __attribute__((aligned(8))) c : 32;
201	} s21;
202	CHECK_SIZE(s21,10)
203

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