1; RUN: llc -mtriple=x86_64-apple-macosx %s -o %t -filetype=obj
2; RUN: llvm-dwarfdump -debug-dump=info %t | FileCheck %s
3;
4; struct A {
5;   A(int i);
6;   ~A();
7; };
8;
9; A::~A() {}
10;
11; void foo() {
12;   A a(1);
13; }
14;
15; rdar://problem/16362674
16;
17; Test that we do not emit a linkage name for the declaration of a destructor.
18; Test that we do emit a linkage name for a specific instance of it.
19
20; CHECK: DW_TAG_subprogram
21; CHECK: DW_TAG_subprogram
22; CHECK: DW_AT_name {{.*}} "~A"
23; CHECK-NOT: DW_AT_MIPS_linkage_name
24; CHECK: DW_TAG_subprogram
25; CHECK-NOT: DW_TAG
26; CHECK: DW_AT_MIPS_linkage_name {{.*}} "_ZN1AD2Ev"
27; CHECK-NOT: DW_TAG
28; CHECK: DW_AT_specification {{.*}} "~A"
29
30
31target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
32target triple = "x86_64-apple-macosx10.9.0"
33
34%struct.A = type { i8 }
35
36; Function Attrs: nounwind ssp uwtable
37define void @_ZN1AD2Ev(%struct.A* %this) unnamed_addr #0 align 2 !dbg !17 {
38entry:
39  %this.addr = alloca %struct.A*, align 8
40  store %struct.A* %this, %struct.A** %this.addr, align 8
41  call void @llvm.dbg.declare(metadata %struct.A** %this.addr, metadata !26, metadata !DIExpression()), !dbg !28
42  %this1 = load %struct.A*, %struct.A** %this.addr
43  ret void, !dbg !29
44}
45
46; Function Attrs: nounwind readnone
47declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
48
49; Function Attrs: nounwind ssp uwtable
50define void @_ZN1AD1Ev(%struct.A* %this) unnamed_addr #0 align 2 !dbg !18 {
51entry:
52  %this.addr = alloca %struct.A*, align 8
53  store %struct.A* %this, %struct.A** %this.addr, align 8
54  call void @llvm.dbg.declare(metadata %struct.A** %this.addr, metadata !30, metadata !DIExpression()), !dbg !31
55  %this1 = load %struct.A*, %struct.A** %this.addr
56  call void @_ZN1AD2Ev(%struct.A* %this1), !dbg !32
57  ret void, !dbg !33
58}
59
60; Function Attrs: ssp uwtable
61define void @_Z3foov() #2 !dbg !19 {
62entry:
63  %a = alloca %struct.A, align 1
64  call void @llvm.dbg.declare(metadata %struct.A* %a, metadata !34, metadata !DIExpression()), !dbg !35
65  call void @_ZN1AC1Ei(%struct.A* %a, i32 1), !dbg !35
66  call void @_ZN1AD1Ev(%struct.A* %a), !dbg !36
67  ret void, !dbg !36
68}
69
70declare void @_ZN1AC1Ei(%struct.A*, i32)
71
72attributes #0 = { nounwind ssp uwtable }
73attributes #1 = { nounwind readnone }
74attributes #2 = { ssp uwtable }
75
76!llvm.dbg.cu = !{!0}
77!llvm.module.flags = !{!23, !24}
78!llvm.ident = !{!25}
79
80!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.5.0 ", isOptimized: false, emissionKind: 1, file: !1, enums: !2, retainedTypes: !3, subprograms: !16, globals: !2, imports: !2)
81!1 = !DIFile(filename: "linkage-name.cpp", directory: "")
82!2 = !{}
83!3 = !{!4}
84!4 = !DICompositeType(tag: DW_TAG_structure_type, name: "A", line: 1, size: 8, align: 8, file: !1, elements: !5, identifier: "_ZTS1A")
85!5 = !{!6, !12}
86!6 = !DISubprogram(name: "A", line: 2, isLocal: false, isDefinition: false, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 2, file: !1, scope: !"_ZTS1A", type: !7)
87!7 = !DISubroutineType(types: !8)
88!8 = !{null, !9, !10}
89!9 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer, baseType: !"_ZTS1A")
90!10 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
91!12 = !DISubprogram(name: "~A", line: 3, isLocal: false, isDefinition: false, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 3, file: !1, scope: !"_ZTS1A", type: !13)
92!13 = !DISubroutineType(types: !14)
93!14 = !{null, !9}
94!16 = !{!17, !18, !19}
95!17 = distinct !DISubprogram(name: "~A", linkageName: "_ZN1AD2Ev", line: 6, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 6, file: !1, scope: !"_ZTS1A", type: !13, declaration: !12, variables: !2)
96!18 = distinct !DISubprogram(name: "~A", linkageName: "_ZN1AD1Ev", line: 6, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 6, file: !1, scope: !"_ZTS1A", type: !13, declaration: !12, variables: !2)
97!19 = distinct !DISubprogram(name: "foo", linkageName: "_Z3foov", line: 10, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 10, file: !1, scope: !20, type: !21, variables: !2)
98!20 = !DIFile(filename: "linkage-name.cpp", directory: "")
99!21 = !DISubroutineType(types: !22)
100!22 = !{null}
101!23 = !{i32 2, !"Dwarf Version", i32 2}
102!24 = !{i32 1, !"Debug Info Version", i32 3}
103!25 = !{!"clang version 3.5.0 "}
104!26 = !DILocalVariable(name: "this", arg: 1, flags: DIFlagArtificial | DIFlagObjectPointer, scope: !17, type: !27)
105!27 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !"_ZTS1A")
106!28 = !DILocation(line: 0, scope: !17)
107!29 = !DILocation(line: 8, scope: !17)
108!30 = !DILocalVariable(name: "this", arg: 1, flags: DIFlagArtificial | DIFlagObjectPointer, scope: !18, type: !27)
109!31 = !DILocation(line: 0, scope: !18)
110!32 = !DILocation(line: 6, scope: !18)
111!33 = !DILocation(line: 8, scope: !18)
112!34 = !DILocalVariable(name: "a", line: 11, scope: !19, file: !20, type: !"_ZTS1A")
113!35 = !DILocation(line: 11, scope: !19)
114!36 = !DILocation(line: 12, scope: !19)
115