xref: /aosp_15_r20/external/clang/test/CodeGen/pragma-pack-1.c (revision 67e74705e28f6214e480b399dd47ea732279e315)
1*67e74705SXin Li // RUN: %clang_cc1 -triple x86_64-apple-macosx10.7.0 -emit-llvm -o - %s | FileCheck %s
2*67e74705SXin Li 
3*67e74705SXin Li // PR4610
4*67e74705SXin Li #pragma pack(4)
5*67e74705SXin Li struct ref {
6*67e74705SXin Li         struct ref *next;
7*67e74705SXin Li } refs;
8*67e74705SXin Li 
9*67e74705SXin Li // PR13580
10*67e74705SXin Li struct S
11*67e74705SXin Li {
12*67e74705SXin Li   char a[3];
13*67e74705SXin Li #pragma pack(1)
14*67e74705SXin Li   struct T
15*67e74705SXin Li   {
16*67e74705SXin Li     char b;
17*67e74705SXin Li     int c;
18*67e74705SXin Li   } d;
19*67e74705SXin Li #pragma pack()
20*67e74705SXin Li   struct T2
21*67e74705SXin Li   {
22*67e74705SXin Li     char b;
23*67e74705SXin Li     int c;
24*67e74705SXin Li   } d2;
25*67e74705SXin Li } ss;
26*67e74705SXin Li 
27*67e74705SXin Li struct S3
28*67e74705SXin Li {
29*67e74705SXin Li   char a[3];
30*67e74705SXin Li #pragma pack(push, 2)
31*67e74705SXin Li   struct T3
32*67e74705SXin Li   {
33*67e74705SXin Li     char b;
34*67e74705SXin Li     int c;
35*67e74705SXin Li   } d;
36*67e74705SXin Li #pragma pack(pop)
37*67e74705SXin Li   struct T32
38*67e74705SXin Li   {
39*67e74705SXin Li     char b;
40*67e74705SXin Li     int c;
41*67e74705SXin Li   } e;
42*67e74705SXin Li } s3;
43*67e74705SXin Li 
44*67e74705SXin Li struct S4
45*67e74705SXin Li {
46*67e74705SXin Li   char a[3];
47*67e74705SXin Li #pragma align=packed
48*67e74705SXin Li   struct T4
49*67e74705SXin Li   {
50*67e74705SXin Li     char b;
51*67e74705SXin Li     int c;
52*67e74705SXin Li   } d;
53*67e74705SXin Li   int e;
54*67e74705SXin Li } s4;
55*67e74705SXin Li 
56*67e74705SXin Li // CHECK: [[struct_ref:%[a-zA-Z0-9_.]+]] = type { [[struct_ref]]* }
57*67e74705SXin Li // CHECK: [[struct_S:%[a-zA-Z0-9_.]+]] = type { [3 x i8], [[struct_T:%[a-zA-Z0-9_.]+]], [[struct_T2:%[a-zA-Z0-9_.]+]] }
58*67e74705SXin Li // CHECK: [[struct_T]] = type <{ i8, i32 }>
59*67e74705SXin Li // CHECK: [[struct_T2]] = type { i8, i32 }
60*67e74705SXin Li 
61*67e74705SXin Li // CHECK: %struct.S3 = type { [3 x i8], i8, %struct.T3, %struct.T32 }
62*67e74705SXin Li // CHECK: %struct.T3 = type <{ i8, i8, i32 }>
63*67e74705SXin Li // CHECK: %struct.T32 = type { i8, i32 }
64*67e74705SXin Li // CHECK: %struct.S4 = type { [3 x i8], %struct.T4, i32 }
65*67e74705SXin Li // CHECK: %struct.T4 = type <{ i8, i32 }>
66*67e74705SXin Li 
67*67e74705SXin Li // CHECK: @refs = common global [[struct_ref]]
68*67e74705SXin Li // CHECK: @ss = common global [[struct_S]]
69