1; RUN: %llc_dwarf -filetype=obj -O0 < %s > %t
2; RUN: llvm-dwarfdump -v -debug-info %t | FileCheck %s
3; CHECK: [[TYPE:.*]]: DW_TAG_structure_type
4; Make sure we correctly handle containing type of a struct being a type identifier.
5; CHECK-NEXT: DW_AT_containing_type [DW_FORM_ref4]       (cu + {{.*}} => {[[TYPE]]})
6; CHECK-NEXT: DW_AT_name [DW_FORM_strp] {{.*}}= "C")
7
8; Make sure we correctly handle context of a subprogram being a type identifier.
9; CHECK: [[SP:.*]]: DW_TAG_subprogram
10; CHECK: DW_AT_name [DW_FORM_strp] {{.*}}= "foo")
11; Make sure we correctly handle containing type of a subprogram being a type identifier.
12; CHECK: DW_AT_containing_type [DW_FORM_ref4]       (cu + {{.*}} => {[[TYPE]]})
13; CHECK: DW_TAG_formal_parameter
14; CHECK: NULL
15; CHECK: NULL
16
17; CHECK: [[TYPE2:.*]]: DW_TAG_structure_type
18; CHECK: DW_AT_name [DW_FORM_strp] {{.*}}= "bar")
19; CHECK: DW_TAG_structure_type
20; CHECK: DW_AT_name [DW_FORM_strp] {{.*}}= "D")
21; CHECK: DW_TAG_member
22; CHECK: DW_AT_name [DW_FORM_strp] {{.*}}= "a")
23; Make sure we correctly handle context of a struct being a type identifier.
24; CHECK: DW_TAG_structure_type
25; CHECK-NEXT: DW_AT_name [DW_FORM_strp] {{.*}}= "Nested")
26; CHECK: DW_TAG_structure_type
27; CHECK-NEXT: DW_AT_name [DW_FORM_strp] {{.*}}= "Nested2")
28; CHECK-NEXT: DW_AT_declaration [DW_FORM_flag]      (0x01)
29; CHECK: DW_TAG_structure_type
30; CHECK-NEXT: DW_AT_name [DW_FORM_strp] {{.*}}= "virt<bar>")
31; Make sure we correctly handle type of a template_type being a type identifier.
32; CHECK: DW_TAG_template_type_parameter
33; CHECK-NEXT: DW_AT_type [DW_FORM_ref4] (cu + {{.*}} => {[[TYPE2]]}
34; CHECK-NEXT: DW_AT_name [DW_FORM_strp] {{.*}}= "T")
35; Make sure we correctly handle derived-from of a typedef being a type identifier.
36; CHECK: DW_TAG_typedef
37; CHECK-NEXT: DW_AT_type [DW_FORM_ref4] (cu + {{.*}} => {[[TYPE2]]}
38; CHECK: DW_AT_name [DW_FORM_strp] {{.*}}= "baz2")
39; Make sure we correctly handle derived-from of a pointer type being a type identifier.
40; CHECK: DW_TAG_pointer_type
41; CHECK: DW_AT_type [DW_FORM_ref4] (cu + {{.*}} => {[[TYPE]]}
42; CHECK: DW_TAG_typedef
43; CHECK-NEXT: DW_AT_type [DW_FORM_ref4] (cu + {{.*}} => {[[TYPE2]]}
44; CHECK: DW_AT_name [DW_FORM_strp] {{.*}}= "baz")
45; Make sure we correctly handle derived-from of an array type being a type identifier.
46; CHECK: DW_TAG_array_type
47; CHECK-NEXT: DW_AT_type [DW_FORM_ref4] (cu + {{.*}} => {[[TYPE2]]}
48; IR generated from clang -g with the following source:
49; struct C {
50;   virtual void foo();
51; };
52; void C::foo() {
53; }
54;
55; struct bar { };
56; typedef bar baz;
57; struct D {
58;   typedef bar baz2;
59;   static int a;
60;   struct Nested { };
61;   struct Nested2 { };
62;   template <typename T>
63;   struct virt {
64;     T* values;
65;   };
66; };
67; void test() {
68;   baz B;
69;   bar A[3];
70;   D::baz2 B2;
71;   D::Nested e;
72;   D::Nested2 *p;
73;   D::virt<bar> t;
74; }
75
76%struct.C = type { i32 (...)** }
77%struct.bar = type { i8 }
78%"struct.D::Nested" = type { i8 }
79%"struct.D::Nested2" = type { i8 }
80%"struct.D::virt" = type { %struct.bar* }
81
82@_ZTV1C = unnamed_addr constant [3 x i8*] [i8* null, i8* bitcast ({ i8*, i8* }* @_ZTI1C to i8*), i8* bitcast (void (%struct.C*)* @_ZN1C3fooEv to i8*)]
83@_ZTVN10__cxxabiv117__class_type_infoE = external global i8*
84@_ZTS1C = constant [3 x i8] c"1C\00"
85@_ZTI1C = unnamed_addr constant { i8*, i8* } { i8* bitcast (i8** getelementptr inbounds (i8*, i8** @_ZTVN10__cxxabiv117__class_type_infoE, i64 2) to i8*), i8* getelementptr inbounds ([3 x i8], [3 x i8]* @_ZTS1C, i32 0, i32 0) }
86
87; Function Attrs: nounwind ssp uwtable
88define void @_ZN1C3fooEv(%struct.C* %this) unnamed_addr #0 align 2 !dbg !31 {
89entry:
90  %this.addr = alloca %struct.C*, align 8
91  store %struct.C* %this, %struct.C** %this.addr, align 8
92  call void @llvm.dbg.declare(metadata %struct.C** %this.addr, metadata !36, metadata !DIExpression()), !dbg !38
93  %this1 = load %struct.C*, %struct.C** %this.addr
94  ret void, !dbg !39
95}
96
97; Function Attrs: nounwind readnone
98declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
99
100; Function Attrs: nounwind ssp uwtable
101define void @_Z4testv() #0 !dbg !32 {
102entry:
103  %B = alloca %struct.bar, align 1
104  %A = alloca [3 x %struct.bar], align 1
105  %B2 = alloca %struct.bar, align 1
106  %e = alloca %"struct.D::Nested", align 1
107  %p = alloca %"struct.D::Nested2"*, align 8
108  %t = alloca %"struct.D::virt", align 8
109  call void @llvm.dbg.declare(metadata %struct.bar* %B, metadata !40, metadata !DIExpression()), !dbg !42
110  call void @llvm.dbg.declare(metadata [3 x %struct.bar]* %A, metadata !43, metadata !DIExpression()), !dbg !47
111  call void @llvm.dbg.declare(metadata %struct.bar* %B2, metadata !48, metadata !DIExpression()), !dbg !50
112  call void @llvm.dbg.declare(metadata %"struct.D::Nested"* %e, metadata !51, metadata !DIExpression()), !dbg !52
113  call void @llvm.dbg.declare(metadata %"struct.D::Nested2"** %p, metadata !53, metadata !DIExpression()), !dbg !55
114  call void @llvm.dbg.declare(metadata %"struct.D::virt"* %t, metadata !56, metadata !DIExpression()), !dbg !57
115  ret void, !dbg !58
116}
117
118attributes #0 = { nounwind ssp uwtable "less-precise-fpmad"="false" "frame-pointer"="all" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
119attributes #1 = { nounwind readnone }
120
121!llvm.dbg.cu = !{!0}
122!llvm.module.flags = !{!35, !59}
123
124!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.4", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !3, globals: !2, imports: !2)
125!1 = !DIFile(filename: "tmp.cpp", directory: ".")
126!2 = !{}
127!3 = !{!4, !18, !19, !22, !23, !24}
128!4 = !DICompositeType(tag: DW_TAG_structure_type, name: "C", line: 1, file: !1, elements: !5, vtableHolder: !4, identifier: "_ZTS1C")
129!5 = !{!6, !13}
130!6 = !DIDerivedType(tag: DW_TAG_member, name: "_vptr$C", flags: DIFlagArtificial, file: !1, scope: !7, baseType: !8)
131!7 = !DIFile(filename: "tmp.cpp", directory: ".")
132!8 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, baseType: !9)
133!9 = !DIDerivedType(tag: DW_TAG_pointer_type, name: "__vtbl_ptr_type", size: 64, baseType: !10)
134!10 = !DISubroutineType(types: !11)
135!11 = !{!12}
136!12 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
137!13 = !DISubprogram(name: "foo", linkageName: "_ZN1C3fooEv", line: 2, isLocal: false, isDefinition: false, virtuality: DW_VIRTUALITY_virtual, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 2, file: !1, scope: !4, type: !14, containingType: !4)
138!14 = !DISubroutineType(types: !15)
139!15 = !{null, !16}
140!16 = !DIDerivedType(tag: DW_TAG_pointer_type, flags: DIFlagArtificial | DIFlagObjectPointer, baseType: !4)
141!18 = !DICompositeType(tag: DW_TAG_structure_type, name: "bar", line: 7, size: 8, align: 8, file: !1, elements: !2, identifier: "_ZTS3bar")
142!19 = !DICompositeType(tag: DW_TAG_structure_type, name: "D", line: 9, size: 8, align: 8, file: !1, elements: !20, identifier: "_ZTS1D")
143!20 = !{!21}
144!21 = !DIDerivedType(tag: DW_TAG_member, name: "a", line: 11, flags: DIFlagStaticMember, file: !1, scope: !19, baseType: !12)
145!22 = !DICompositeType(tag: DW_TAG_structure_type, name: "Nested", line: 12, size: 8, align: 8, file: !1, scope: !19, elements: !2, identifier: "_ZTSN1D6NestedE")
146!23 = !DICompositeType(tag: DW_TAG_structure_type, name: "Nested2", line: 13, flags: DIFlagFwdDecl, file: !1, scope: !19, identifier: "_ZTSN1D7Nested2E")
147!24 = !DICompositeType(tag: DW_TAG_structure_type, name: "virt<bar>", line: 15, file: !1, scope: !19, elements: !25, templateParams: !28, identifier: "_ZTSN1D4virtI3barEE")
148!25 = !{!26}
149!26 = !DIDerivedType(tag: DW_TAG_member, name: "values", line: 16, size: 64, align: 64, file: !1, scope: !24, baseType: !27)
150!27 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !18)
151!28 = !{!29}
152!29 = !DITemplateTypeParameter(name: "T", type: !18)
153!31 = distinct !DISubprogram(name: "foo", linkageName: "_ZN1C3fooEv", line: 4, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 4, file: !1, scope: null, type: !14, declaration: !13, retainedNodes: !2)
154!32 = distinct !DISubprogram(name: "test", linkageName: "_Z4testv", line: 20, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 20, file: !1, scope: !7, type: !33, retainedNodes: !2)
155!33 = !DISubroutineType(types: !34)
156!34 = !{null}
157!35 = !{i32 2, !"Dwarf Version", i32 2}
158!36 = !DILocalVariable(name: "this", arg: 1, flags: DIFlagArtificial | DIFlagObjectPointer, scope: !31, type: !37)
159!37 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !4)
160!38 = !DILocation(line: 0, scope: !31)
161!39 = !DILocation(line: 5, scope: !31)
162!40 = !DILocalVariable(name: "B", line: 21, scope: !32, file: !7, type: !41)
163!41 = !DIDerivedType(tag: DW_TAG_typedef, name: "baz", line: 8, file: !1, baseType: !18)
164!42 = !DILocation(line: 21, scope: !32)
165!43 = !DILocalVariable(name: "A", line: 22, scope: !32, file: !7, type: !44)
166!44 = !DICompositeType(tag: DW_TAG_array_type, size: 24, align: 8, baseType: !18, elements: !45)
167!45 = !{!46}
168!46 = !DISubrange(count: 3)
169!47 = !DILocation(line: 22, scope: !32)
170!48 = !DILocalVariable(name: "B2", line: 23, scope: !32, file: !7, type: !49)
171!49 = !DIDerivedType(tag: DW_TAG_typedef, name: "baz2", line: 10, file: !1, scope: !19, baseType: !18)
172!50 = !DILocation(line: 23, scope: !32)
173!51 = !DILocalVariable(name: "e", line: 24, scope: !32, file: !7, type: !22)
174!52 = !DILocation(line: 24, scope: !32)
175!53 = !DILocalVariable(name: "p", line: 25, scope: !32, file: !7, type: !54)
176!54 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !23)
177!55 = !DILocation(line: 25, scope: !32)
178!56 = !DILocalVariable(name: "t", line: 26, scope: !32, file: !7, type: !24)
179!57 = !DILocation(line: 26, scope: !32)
180!58 = !DILocation(line: 27, scope: !32)
181!59 = !{i32 1, !"Debug Info Version", i32 3}
182