1 // RUN: %clang_cc1 -triple x86_64-apple-darwin9 %s -fsyntax-only -verify -ffreestanding
2 // expected-no-diagnostics
3 // <rdar://problem/10494810> and PR9560
4 // Check #pragma pack handling with bitfields.
5 
6 #include <stddef.h>
7 #pragma pack(2)
8 
9 struct s0 {
10      char        f1;
11      unsigned    f2 : 32;
12      char        f3;
13 };
14 extern int check[sizeof(struct s0) == 6 ? 1 : -1];
15 
16 struct s1 {
17      char        f1;
18      unsigned       : 0;
19      char        f3;
20 };
21 extern int check[sizeof(struct s1) == 5 ? 1 : -1];
22 
23 struct s2 {
24      char        f1;
25      unsigned       : 0;
26      unsigned    f3 : 8;
27      char        f4;
28 };
29 extern int check[sizeof(struct s2) == 6 ? 1 : -1];
30 
31 struct s3 {
32      char        f1;
33      unsigned       : 0;
34      unsigned    f3 : 16;
35      char        f4;
36 };
37 extern int check[sizeof(struct s3) == 8 ? 1 : -1];
38 extern int check[offsetof(struct s3, f4) == 6 ? 1 : -1];
39 
40 struct s4 {
41      char        f1;
42      unsigned    f2 : 8;
43      char        f3;
44 };
45 extern int check[sizeof(struct s4) == 4 ? 1 : -1];
46 extern int check[offsetof(struct s4, f3) == 2 ? 1 : -1];
47