1; struct A {
2;   A();
3;   virtual ~A();
4; };
5; struct B : A {
6;   B();
7;   virtual ~B();
8; };
9; B::B() {}
10; CHECK: __ZN1BC1Ev:
11; CHECK:     .loc	1 [[@LINE-2]] 0 prologue_end
12; CHECK-NOT: .loc	1 0 0 prologue_end
13
14; The location of the prologue_end marker should not be affected by the presence
15; of CFI instructions.
16
17; RUN: llc -O0 -filetype=asm -mtriple=thumbv7-apple-ios < %s | FileCheck %s
18; RUN: llc -O0 -filetype=asm -mtriple=thumbv6-apple-ios < %s | FileCheck %s
19
20; ModuleID = 'test1.cpp'
21target datalayout = "e-m:o-p:32:32-f64:32:64-v64:32:64-v128:32:128-a:0:32-n32-S32"
22target triple = "thumbv7-apple-ios"
23
24%struct.B = type { %struct.A }
25%struct.A = type { i32 (...)** }
26
27@_ZTV1B = external unnamed_addr constant [4 x i8*]
28
29; Function Attrs: nounwind
30define %struct.B* @_ZN1BC2Ev(%struct.B* %this) unnamed_addr #0 align 2 {
31entry:
32  tail call void @llvm.dbg.value(metadata %struct.B* %this, i64 0, metadata !30, metadata !40), !dbg !41
33  %0 = getelementptr inbounds %struct.B, %struct.B* %this, i32 0, i32 0, !dbg !42
34  %call = tail call %struct.A* @_ZN1AC2Ev(%struct.A* %0) #3, !dbg !42
35  %1 = getelementptr inbounds %struct.B, %struct.B* %this, i32 0, i32 0, i32 0, !dbg !42
36  store i32 (...)** bitcast (i8** getelementptr inbounds ([4 x i8*], [4 x i8*]* @_ZTV1B, i32 0, i32 2) to i32 (...)**), i32 (...)*** %1, align 4, !dbg !42, !tbaa !43
37  ret %struct.B* %this, !dbg !42
38}
39
40declare %struct.A* @_ZN1AC2Ev(%struct.A*)
41
42; Function Attrs: nounwind
43define %struct.B* @_ZN1BC1Ev(%struct.B* %this) unnamed_addr #0 align 2 {
44entry:
45  tail call void @llvm.dbg.value(metadata %struct.B* %this, i64 0, metadata !34, metadata !40), !dbg !46
46  tail call void @llvm.dbg.value(metadata %struct.B* %this, i64 0, metadata !47, metadata !40) #3, !dbg !49
47  %0 = getelementptr inbounds %struct.B, %struct.B* %this, i32 0, i32 0, !dbg !50
48  %call.i = tail call %struct.A* @_ZN1AC2Ev(%struct.A* %0) #3, !dbg !50
49  %1 = getelementptr inbounds %struct.B, %struct.B* %this, i32 0, i32 0, i32 0, !dbg !50
50  store i32 (...)** bitcast (i8** getelementptr inbounds ([4 x i8*], [4 x i8*]* @_ZTV1B, i32 0, i32 2) to i32 (...)**), i32 (...)*** %1, align 4, !dbg !50, !tbaa !43
51  ret %struct.B* %this, !dbg !48
52}
53
54; Function Attrs: nounwind readnone
55declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #2
56
57attributes #0 = { nounwind }
58attributes #2 = { nounwind readnone }
59attributes #3 = { nounwind }
60
61!llvm.dbg.cu = !{!0}
62!llvm.module.flags = !{!35, !36, !37, !38}
63!llvm.ident = !{!39}
64
65!0 = !MDCompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.6.0 (trunk 224279) (llvm/trunk 224283)", isOptimized: true, emissionKind: 1, file: !1, enums: !2, retainedTypes: !3, subprograms: !27, globals: !2, imports: !2)
66!1 = !MDFile(filename: "<stdin>", directory: "")
67!2 = !{}
68!3 = !{!4, !13}
69!4 = !MDCompositeType(tag: DW_TAG_structure_type, name: "B", line: 5, size: 32, align: 32, file: !5, elements: !6, vtableHolder: !"_ZTS1A", identifier: "_ZTS1B")
70!5 = !MDFile(filename: "test1.cpp", directory: "")
71!6 = !{!7, !8, !12}
72!7 = !MDDerivedType(tag: DW_TAG_inheritance, scope: !"_ZTS1B", baseType: !"_ZTS1A")
73!8 = !MDSubprogram(name: "B", line: 6, isLocal: false, isDefinition: false, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 6, file: !5, scope: !"_ZTS1B", type: !9)
74!9 = !MDSubroutineType(types: !10)
75!10 = !{null, !11}
76!11 = !MDDerivedType(tag: DW_TAG_pointer_type, size: 32, align: 32, flags: DIFlagArtificial | DIFlagObjectPointer, baseType: !"_ZTS1B")
77!12 = !MDSubprogram(name: "~B", line: 7, isLocal: false, isDefinition: false, virtuality: DW_VIRTUALITY_virtual, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 7, file: !5, scope: !"_ZTS1B", type: !9, containingType: !"_ZTS1B")
78!13 = !MDCompositeType(tag: DW_TAG_structure_type, name: "A", line: 1, size: 32, align: 32, file: !5, elements: !14, vtableHolder: !"_ZTS1A", identifier: "_ZTS1A")
79!14 = !{!15, !22, !26}
80!15 = !MDDerivedType(tag: DW_TAG_member, name: "_vptr$A", size: 32, flags: DIFlagArtificial, file: !5, scope: !16, baseType: !17)
81!16 = !MDFile(filename: "test1.cpp", directory: "")
82!17 = !MDDerivedType(tag: DW_TAG_pointer_type, size: 32, baseType: !18)
83!18 = !MDDerivedType(tag: DW_TAG_pointer_type, name: "__vtbl_ptr_type", size: 32, baseType: !19)
84!19 = !MDSubroutineType(types: !20)
85!20 = !{!21}
86!21 = !MDBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
87!22 = !MDSubprogram(name: "A", line: 2, isLocal: false, isDefinition: false, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 2, file: !5, scope: !"_ZTS1A", type: !23)
88!23 = !MDSubroutineType(types: !24)
89!24 = !{null, !25}
90!25 = !MDDerivedType(tag: DW_TAG_pointer_type, size: 32, align: 32, flags: DIFlagArtificial | DIFlagObjectPointer, baseType: !"_ZTS1A")
91!26 = !MDSubprogram(name: "~A", line: 3, isLocal: false, isDefinition: false, virtuality: DW_VIRTUALITY_virtual, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 3, file: !5, scope: !"_ZTS1A", type: !23, containingType: !"_ZTS1A")
92!27 = !{!28, !32}
93!28 = !MDSubprogram(name: "B", linkageName: "_ZN1BC2Ev", line: 9, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 9, file: !5, scope: !"_ZTS1B", type: !9, function: %struct.B* (%struct.B*)* @_ZN1BC2Ev, declaration: !8, variables: !29)
94!29 = !{!30}
95!30 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "this", arg: 1, flags: DIFlagArtificial | DIFlagObjectPointer, scope: !28, type: !31)
96!31 = !MDDerivedType(tag: DW_TAG_pointer_type, size: 32, align: 32, baseType: !"_ZTS1B")
97!32 = !MDSubprogram(name: "B", linkageName: "_ZN1BC1Ev", line: 9, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 9, file: !5, scope: !"_ZTS1B", type: !9, function: %struct.B* (%struct.B*)* @_ZN1BC1Ev, declaration: !8, variables: !33)
98!33 = !{!34}
99!34 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "this", arg: 1, flags: DIFlagArtificial | DIFlagObjectPointer, scope: !32, type: !31)
100!35 = !{i32 2, !"Dwarf Version", i32 4}
101!36 = !{i32 2, !"Debug Info Version", i32 3}
102!37 = !{i32 1, !"wchar_size", i32 4}
103!38 = !{i32 1, !"min_enum_size", i32 4}
104!39 = !{!"clang version 3.6.0 (trunk 224279) (llvm/trunk 224283)"}
105!40 = !MDExpression()
106!41 = !MDLocation(line: 0, scope: !28)
107!42 = !MDLocation(line: 9, scope: !28)
108!43 = !{!44, !44, i64 0}
109!44 = !{!"vtable pointer", !45, i64 0}
110!45 = !{!"Simple C/C++ TBAA"}
111!46 = !MDLocation(line: 0, scope: !32)
112!47 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "this", arg: 1, flags: DIFlagArtificial | DIFlagObjectPointer, scope: !28, type: !31)
113!48 = !MDLocation(line: 9, scope: !32)
114!49 = !MDLocation(line: 0, scope: !28, inlinedAt: !48)
115!50 = !MDLocation(line: 9, scope: !28, inlinedAt: !48)
116