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gerrit-public.fairphone.software / toolchain / llvm-project / 96dae81d7fe7570f97d8fbe03c02e145173f801c / . / clang / test / CodeGen / ms_struct-bitfield.c
blob: 08f2a5b60a54175a1634f545f7736bd0aecd91da [file] [log] [blame]
John McCall5d4d61f2014-02-13 00:50:02 +0000[diff] [blame]1// RUN: %clang_cc1 -emit-llvm -o - -triple x86_64-apple-darwin9 %s | FileCheck %s
John McCall76e1818a2014-02-13 00:50:08 +0000[diff] [blame]2// RUN: %clang_cc1 -emit-llvm -o - -triple thumbv7-apple-ios -target-abi apcs-gnu %s | FileCheck %s -check-prefix=CHECK-ARM
John McCall5d4d61f2014-02-13 00:50:02 +0000[diff] [blame]3
Fariborz Jahanianbcb23a12011-04-26 23:52:16 +0000[diff] [blame]4// rdar://8823265
5
John McCall76e1818a2014-02-13 00:50:08 +0000[diff] [blame]6// Note that we're declaring global variables with these types,
7// triggering both Sema and IRGen struct layout.
8
Fariborz Jahanianbcb23a12011-04-26 23:52:16 +0000[diff] [blame]9#define ATTR __attribute__((__ms_struct__))
10
11struct
12{
13 char foo;
14 long : 0;
15 char bar;
16} ATTR t1;
John McCall5d4d61f2014-02-13 00:50:02 +0000[diff] [blame]17int s1 = sizeof(t1);
18// CHECK: @s1 = global i32 2
John McCall76e1818a2014-02-13 00:50:08 +0000[diff] [blame]19// CHECK-ARM: @s1 = global i32 2
Fariborz Jahanianbcb23a12011-04-26 23:52:16 +0000[diff] [blame]20
21struct
22{
23 char foo;
24 long : 0;
25 char : 0;
26 int : 0;
27 char bar;
28} ATTR t2;
John McCall5d4d61f2014-02-13 00:50:02 +0000[diff] [blame]29int s2 = sizeof(t2);
30// CHECK: @s2 = global i32 2
John McCall76e1818a2014-02-13 00:50:08 +0000[diff] [blame]31// CHECK-ARM: @s2 = global i32 2
Fariborz Jahanianbcb23a12011-04-26 23:52:16 +0000[diff] [blame]32
33struct
34{
35 char foo;
36 long : 0;
37 char : 0;
38 int : 0;
39 char bar;
40 long : 0;
41 char : 0;
42} ATTR t3;
John McCall5d4d61f2014-02-13 00:50:02 +0000[diff] [blame]43int s3 = sizeof(t3);
44// CHECK: @s3 = global i32 2
John McCall76e1818a2014-02-13 00:50:08 +0000[diff] [blame]45// CHECK-ARM: @s3 = global i32 2
Fariborz Jahanianbcb23a12011-04-26 23:52:16 +0000[diff] [blame]46
47struct
48{
49 long : 0;
50 char bar;
51} ATTR t4;
John McCall5d4d61f2014-02-13 00:50:02 +0000[diff] [blame]52int s4 = sizeof(t4);
53// CHECK: @s4 = global i32 1
John McCall76e1818a2014-02-13 00:50:08 +0000[diff] [blame]54// CHECK-ARM: @s4 = global i32 1
Fariborz Jahanianbcb23a12011-04-26 23:52:16 +0000[diff] [blame]55
56struct
57{
58 long : 0;
59 long : 0;
60 char : 0;
61 char bar;
62} ATTR t5;
John McCall5d4d61f2014-02-13 00:50:02 +0000[diff] [blame]63int s5 = sizeof(t5);
64// CHECK: @s5 = global i32 1
John McCall76e1818a2014-02-13 00:50:08 +0000[diff] [blame]65// CHECK-ARM: @s5 = global i32 1
Fariborz Jahanianbcb23a12011-04-26 23:52:16 +0000[diff] [blame]66
67struct
68{
69 long : 0;
70 long : 0;
71 char : 0;
72 char bar;
73} ATTR t6;
John McCall5d4d61f2014-02-13 00:50:02 +0000[diff] [blame]74int s6 = sizeof(t6);
75// CHECK: @s6 = global i32 1
John McCall76e1818a2014-02-13 00:50:08 +0000[diff] [blame]76// CHECK-ARM: @s6 = global i32 1
Fariborz Jahanianbcb23a12011-04-26 23:52:16 +0000[diff] [blame]77
78struct
79{
80 char foo;
81 long : 0;
82 int : 0;
83 char bar;
84 char bar1;
85 long : 0;
86 char bar2;
87 char bar3;
88 char : 0;
89 char bar4;
90 char bar5;
91 char : 0;
92 char bar6;
93 char bar7;
94} ATTR t7;
John McCall5d4d61f2014-02-13 00:50:02 +0000[diff] [blame]95int s7 = sizeof(t7);
96// CHECK: @s7 = global i32 9
John McCall76e1818a2014-02-13 00:50:08 +0000[diff] [blame]97// CHECK-ARM: @s7 = global i32 9
Fariborz Jahanianbcb23a12011-04-26 23:52:16 +0000[diff] [blame]98
99struct
100{
101 long : 0;
102 long : 0;
103 char : 0;
104} ATTR t8;
John McCall5d4d61f2014-02-13 00:50:02 +0000[diff] [blame]105int s8 = sizeof(t8);
106// CHECK: @s8 = global i32 0
John McCall76e1818a2014-02-13 00:50:08 +0000[diff] [blame]107// CHECK-ARM: @s8 = global i32 0
Fariborz Jahanianbcb23a12011-04-26 23:52:16 +0000[diff] [blame]108
109struct
110{
111 char foo;
112 long : 0;
113 int : 0;
114 char bar;
115 char bar1;
116 long : 0;
117 char bar2;
118 char bar3;
119 char : 0;
120 char bar4;
121 char bar5;
122 char : 0;
123 char bar6;
124 char bar7;
125 int i1;
126 char : 0;
127 long : 0;
128 char :4;
129 char bar8;
130 char : 0;
131 char bar9;
132 char bar10;
133 int i2;
134 char : 0;
135 long : 0;
136 char :4;
137} ATTR t9;
John McCall5d4d61f2014-02-13 00:50:02 +0000[diff] [blame]138int s9 = sizeof(t9);
139// CHECK: @s9 = global i32 28
John McCall76e1818a2014-02-13 00:50:08 +0000[diff] [blame]140// CHECK-ARM: @s9 = global i32 28
Fariborz Jahanianbcb23a12011-04-26 23:52:16 +0000[diff] [blame]141
Fariborz Jahanianeb397412011-05-02 17:20:56 +0000[diff] [blame]142struct
143{
144 char foo: 8;
145 long : 0;
146 char bar;
147} ATTR t10;
John McCall5d4d61f2014-02-13 00:50:02 +0000[diff] [blame]148int s10 = sizeof(t10);
149// CHECK: @s10 = global i32 16
John McCall76e1818a2014-02-13 00:50:08 +0000[diff] [blame]150// CHECK-ARM: @s10 = global i32 8
151
152// rdar://16041826 - ensure that ms_structs work correctly on a
153// !useBitFieldTypeAlignment() target
154struct {
155 unsigned int a : 31;
156 unsigned int b : 2;
157 unsigned int c;
158} ATTR t11;
159int s11 = sizeof(t11);
160// CHECK: @s11 = global i32 12
161// CHECK-ARM: @s11 = global i32 12
162
163struct {
164 unsigned char a : 3;
165 unsigned char b : 4;
166 unsigned short c : 6;
167} ATTR t12;
168int s12 = sizeof(t12);
169// CHECK: @s12 = global i32 4
170// CHECK-ARM: @s12 = global i32 4
171
172struct {
173 unsigned char a : 3;
174 unsigned char b : 4;
175 __attribute__((packed)) unsigned short c : 6;
176} ATTR t13;
177int s13 = sizeof(t13);
178// CHECK: @s13 = global i32 4
179// CHECK-ARM: @s13 = global i32 4