xref: /llvm-project/llvm/test/DebugInfo/COFF/bitfields.ll (revision e29e30b1397f3e50f3487491f8a77ae08e4e3471) 
1; RUN: llc < %s -filetype=obj | llvm-readobj - --codeview | FileCheck %s
2
3; C++ source to regenerate:
4; $ cat t.cpp
5; #pragma pack(1)
6; struct S0 {
7;   char : 8;
8;   short   : 8;
9;   short x : 8;
10; } s0;
11;
12; #pragma pack(1)
13; struct S1 {
14;   char x1[2];
15;   char x2;
16;   int y : 23;
17;   int z : 23;
18;   int w : 2;
19;   struct { char c; short s; } v;
20;   short u : 3;
21; } s1;
22;
23; #pragma pack(1)
24; struct S2 {
25;   char : 0;
26;   int y : 1;
27; } s2;
28; $ clang t.cpp -S -emit-llvm -g -gcodeview -o t.ll
29
30; CHECK: CodeViewTypes [
31; CHECK:  BitField ([[S0_x:.*]]) {
32; CHECK:    TypeLeafKind: LF_BITFIELD (0x1205)
33; CHECK:    Type: short (0x11)
34; CHECK:    BitSize: 8
35; CHECK:    BitOffset: 8
36; CHECK:  }
37; CHECK:  FieldList ([[S0_fl:.*]]) {
38; CHECK:    TypeLeafKind: LF_FIELDLIST (0x1203)
39; CHECK:    DataMember {
40; CHECK:      Type: [[S0_x:.*]]
41; CHECK:      FieldOffset: 0x1
42; CHECK:      Name: x
43; CHECK:    }
44; CHECK:  }
45; CHECK:  Struct ({{.*}}) {
46; CHECK:    TypeLeafKind: LF_STRUCTURE (0x1505)
47; CHECK:    MemberCount: 1
48; CHECK:    Properties [ (0x0)
49; CHECK:    ]
50; CHECK:    FieldList: <field list> ([[S0_fl]])
51; CHECK:    SizeOf: 3
52; CHECK:    Name: S0
53; CHECK:  }
54; CHECK:  BitField ([[S1_y_z:.*]]) {
55; CHECK:    TypeLeafKind: LF_BITFIELD (0x1205)
56; CHECK:    Type: int (0x74)
57; CHECK:    BitSize: 23
58; CHECK:    BitOffset: 0
59; CHECK:  }
60; CHECK:  BitField ([[S1_w:.*]]) {
61; CHECK:    TypeLeafKind: LF_BITFIELD (0x1205)
62; CHECK:    Type: int (0x74)
63; CHECK:    BitSize: 2
64; CHECK:    BitOffset: 23
65; CHECK:  }
66; CHECK:  FieldList ([[anon_fl:.*]]) {
67; CHECK:    TypeLeafKind: LF_FIELDLIST (0x1203)
68; CHECK:    DataMember {
69; CHECK:      TypeLeafKind: LF_MEMBER (0x150D)
70; CHECK:      Type: char (0x70)
71; CHECK:      FieldOffset: 0x0
72; CHECK:      Name: c
73; CHECK:    }
74; CHECK:    DataMember {
75; CHECK:      TypeLeafKind: LF_MEMBER (0x150D)
76; CHECK:      Type: short (0x11)
77; CHECK:      FieldOffset: 0x1
78; CHECK:      Name: s
79; CHECK:    }
80; CHECK:  }
81; CHECK:  Struct ([[anon_ty:.*]]) {
82; CHECK:    TypeLeafKind: LF_STRUCTURE (0x1505)
83; CHECK:    MemberCount: 2
84; CHECK:    Properties [ (0x8)
85; CHECK:      Nested (0x8)
86; CHECK:    ]
87; CHECK:    FieldList: <field list> ([[anon_fl]])
88; CHECK:    SizeOf: 3
89; CHECK:    Name: S1::<unnamed-tag>
90; CHECK:  }
91; CHECK:  BitField ([[S1_u:.*]]) {
92; CHECK:    TypeLeafKind: LF_BITFIELD (0x1205)
93; CHECK:    Type: short (0x11)
94; CHECK:    BitSize: 3
95; CHECK:    BitOffset: 0
96; CHECK:  }
97; CHECK:  FieldList ([[S1_fl:.*]]) {
98; CHECK:    TypeLeafKind: LF_FIELDLIST (0x1203)
99; CHECK:    DataMember {
100; CHECK:      FieldOffset: 0x0
101; CHECK:      Name: x1
102; CHECK:    }
103; CHECK:    DataMember {
104; CHECK:      Type: char (0x70)
105; CHECK:      FieldOffset: 0x2
106; CHECK:      Name: x2
107; CHECK:    }
108; CHECK:    DataMember {
109; CHECK:      Type: [[S1_y_z]]
110; CHECK:      FieldOffset: 0x3
111; CHECK:      Name: y
112; CHECK:    }
113; CHECK:    DataMember {
114; CHECK:      Type: [[S1_y_z]]
115; CHECK:      FieldOffset: 0x7
116; CHECK:      Name: z
117; CHECK:    }
118; CHECK:    DataMember {
119; CHECK:      Type: [[S1_w]]
120; CHECK:      FieldOffset: 0x7
121; CHECK:      Name: w
122; CHECK:    }
123; CHECK:    DataMember {
124; CHECK:      Type: S1::<unnamed-tag> ([[anon_ty]])
125; CHECK:      FieldOffset: 0xB
126; CHECK:      Name: v
127; CHECK:    }
128; CHECK:    DataMember {
129; CHECK:      Type: [[S1_u]]
130; CHECK:      FieldOffset: 0xE
131; CHECK:      Name: u
132; CHECK:    }
133; CHECK:  }
134; CHECK:  Struct ({{.*}}) {
135; CHECK:    TypeLeafKind: LF_STRUCTURE (0x1505)
136; CHECK:    MemberCount: 7
137; CHECK:    Properties [ (0x0)
138; CHECK:    ]
139; CHECK:    FieldList: <field list> ([[S1_fl]])
140; CHECK:    SizeOf: 16
141; CHECK:    Name: S1
142; CHECK:  }
143; CHECK:  BitField ([[S2_y:.*]]) {
144; CHECK:    TypeLeafKind: LF_BITFIELD (0x1205)
145; CHECK:    Type: int (0x74)
146; CHECK:    BitSize: 1
147; CHECK:    BitOffset: 0
148; CHECK:  }
149; CHECK:  FieldList ([[S2_fl:.*]]) {
150; CHECK:    TypeLeafKind: LF_FIELDLIST (0x1203)
151; CHECK:    DataMember {
152; CHECK:      Type: [[S2_y]]
153; CHECK:      FieldOffset: 0x0
154; CHECK:      Name: y
155; CHECK:    }
156; CHECK:  }
157; CHECK:  Struct ({{.*}}) {
158; CHECK:    TypeLeafKind: LF_STRUCTURE (0x1505)
159; CHECK:    MemberCount: 1
160; CHECK:    Properties [ (0x0)
161; CHECK:    ]
162; CHECK:    FieldList: <field list> ([[S2_fl]])
163; CHECK:    SizeOf: 4
164; CHECK:    Name: S2
165; CHECK:  }
166
167source_filename = "test/DebugInfo/COFF/bitfields.ll"
168target datalayout = "e-m:x-p:32:32-i64:64-f80:32-n8:16:32-a:0:32-S32"
169target triple = "x86_64-pc-windows-msvc18.0.0"
170
171%struct.S0 = type <{ i8, i16 }>
172%struct.S1 = type <{ [2 x i8], i8, i32, i32, %struct.anon, i16 }>
173%struct.anon = type <{ i8, i16 }>
174%struct.S2 = type { i32 }
175
176@s0 = common global %struct.S0 zeroinitializer, align 1, !dbg !0
177@s1 = common global %struct.S1 zeroinitializer, align 1, !dbg !6
178@s2 = common global %struct.S2 zeroinitializer, align 1, !dbg !28
179
180!llvm.dbg.cu = !{!2}
181!llvm.module.flags = !{!36, !37, !38}
182!llvm.ident = !{!39}
183
184!0 = distinct !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
185!1 = !DIGlobalVariable(name: "s0", scope: !2, file: !8, line: 7, type: !33, isLocal: false, isDefinition: true)
186!2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 3.9.0 (trunk 273812) (llvm/trunk 273843)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5)
187!3 = !DIFile(filename: "-", directory: "/usr/local/google/home/majnemer/llvm/src")
188!4 = !{}
189!5 = !{!0, !6, !28}
190!6 = distinct !DIGlobalVariableExpression(var: !7, expr: !DIExpression())
191!7 = !DIGlobalVariable(name: "s1", scope: !2, file: !8, line: 18, type: !9, isLocal: false, isDefinition: true)
192!8 = !DIFile(filename: "<stdin>", directory: "/usr/local/google/home/majnemer/llvm/src")
193!9 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "S1", file: !8, line: 10, size: 128, elements: !10)
194!10 = !{!11, !16, !17, !19, !20, !21, !27}
195!11 = !DIDerivedType(tag: DW_TAG_member, name: "x1", scope: !9, file: !8, line: 11, baseType: !12, size: 16)
196!12 = !DICompositeType(tag: DW_TAG_array_type, baseType: !13, size: 16, elements: !14)
197!13 = !DIBasicType(name: "char", size: 8, encoding: DW_ATE_signed_char)
198!14 = !{!15}
199!15 = !DISubrange(count: 2)
200!16 = !DIDerivedType(tag: DW_TAG_member, name: "x2", scope: !9, file: !8, line: 12, baseType: !13, size: 8, offset: 16)
201!17 = !DIDerivedType(tag: DW_TAG_member, name: "y", scope: !9, file: !8, line: 13, baseType: !18, size: 23, offset: 24, flags: DIFlagBitField, extraData: i64 24)
202!18 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
203!19 = !DIDerivedType(tag: DW_TAG_member, name: "z", scope: !9, file: !8, line: 14, baseType: !18, size: 23, offset: 56, flags: DIFlagBitField, extraData: i64 56)
204!20 = !DIDerivedType(tag: DW_TAG_member, name: "w", scope: !9, file: !8, line: 15, baseType: !18, size: 2, offset: 79, flags: DIFlagBitField, extraData: i64 56)
205!21 = !DIDerivedType(tag: DW_TAG_member, name: "v", scope: !9, file: !8, line: 16, baseType: !22, size: 24, offset: 88)
206!22 = distinct !DICompositeType(tag: DW_TAG_structure_type, scope: !9, file: !8, line: 16, size: 24, elements: !23)
207!23 = !{!24, !25}
208!24 = !DIDerivedType(tag: DW_TAG_member, name: "c", scope: !22, file: !8, line: 16, baseType: !13, size: 8)
209!25 = !DIDerivedType(tag: DW_TAG_member, name: "s", scope: !22, file: !8, line: 16, baseType: !26, size: 16, offset: 8)
210!26 = !DIBasicType(name: "short", size: 16, encoding: DW_ATE_signed)
211!27 = !DIDerivedType(tag: DW_TAG_member, name: "u", scope: !9, file: !8, line: 17, baseType: !26, size: 3, offset: 112, flags: DIFlagBitField, extraData: i64 112)
212!28 = distinct !DIGlobalVariableExpression(var: !29, expr: !DIExpression())
213!29 = !DIGlobalVariable(name: "s2", scope: !2, file: !8, line: 24, type: !30, isLocal: false, isDefinition: true)
214!30 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "S2", file: !8, line: 21, size: 32, elements: !31)
215!31 = !{!32}
216!32 = !DIDerivedType(tag: DW_TAG_member, name: "y", scope: !30, file: !8, line: 23, baseType: !18, size: 1, flags: DIFlagBitField, extraData: i64 0)
217!33 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "S0", file: !8, line: 3, size: 24, elements: !34)
218!34 = !{!35}
219!35 = !DIDerivedType(tag: DW_TAG_member, name: "x", scope: !33, file: !8, line: 6, baseType: !26, size: 8, offset: 16, flags: DIFlagBitField, extraData: i64 8)
220!36 = !{i32 2, !"CodeView", i32 1}
221!37 = !{i32 2, !"Debug Info Version", i32 3}
222!38 = !{i32 1, !"PIC Level", i32 2}
223!39 = !{!"clang version 3.9.0 (trunk 273812) (llvm/trunk 273843)"}
224
225