1 ; RUN: %llc_dwarf -O0 -filetype=obj -dwarf-linkage-names=Abstract < %s | llvm-dwarfdump -debug-info - > %t
2 ; RUN: FileCheck %s -check-prefix=ONENAME < %t
3 ; RUN: FileCheck %s -check-prefix=REF < %t
4 ; Verify tuning for SCE gets us Abstract only.
5 ; RUN: %llc_dwarf -O0 -filetype=obj -debugger-tune=sce < %s | llvm-dwarfdump -debug-info - > %t
6 ; RUN: FileCheck %s -check-prefix=ONENAME < %t
7 ; RUN: FileCheck %s -check-prefix=REF < %t
9 ; Verify that the only linkage-name present is the abstract origin of the
12 ; IR generated from clang -O0 with:
14 ; __attribute__((always_inline)) void f2() {
22 ; __attribute__((always_inline)) void f5();
31 ; Show that the only linkage names are for the inlined functions,
32 ; because those are the ones with an abstract origin.
33 ; ONENAME-NOT: {{DW_AT(_MIPS)?_linkage_name}}
34 ; ONENAME: {{DW_AT(_MIPS)?_linkage_name}} ("_Z2f2v")
35 ; ONENAME-NOT: {{DW_AT(_MIPS)?_linkage_name}}
36 ; ONENAME: {{DW_AT(_MIPS)?_linkage_name}} ("_ZN2F42f5Ev")
37 ; ONENAME-NOT: {{DW_AT(_MIPS)?_linkage_name}}
39 ; For f2() we see the definition pointing to an abstract origin DIE,
40 ; which in turn is where the linkage_name is; and then there's
41 ; an inlined_subroutine pointing back to the abstract origin.
42 ; The order of these DIEs is not important of course, just the links.
43 ; REF: DW_TAG_subprogram
44 ; REF-NOT: {{DW_TAG|NULL}}
45 ; REF: DW_AT_abstract_origin ([[F2:0x.*]] "_Z2f2v")
46 ; REF: [[F2]]: DW_TAG_subprogram
47 ; REF-NEXT: linkage_name ("_Z2f2v")
48 ; REF: DW_TAG_inlined_subroutine
49 ; REF-NOT: {{DW_TAG|NULL}}
50 ; REF: DW_AT_abstract_origin ([[F2]]
52 ; For F4::f5(), first we see the in-class declaration,
53 ; then the definition, abstract origin, and the inlined_subroutine.
54 ; REF: DW_TAG_structure_type
55 ; REF-NEXT: DW_AT_name ("F4")
56 ; REF-NOT: {{DW_TAG|NULL}}
57 ; REF: [[F5_DECL:0x.*]]: DW_TAG_subprogram
58 ; REF-NEXT: DW_AT_name ("f5")
59 ; REF: DW_TAG_subprogram
60 ; REF-NOT: {{DW_TAG|NULL}}
61 ; REF: DW_AT_abstract_origin ([[F5_ABS:0x.*]] "_ZN2F42f5Ev")
62 ; REF: [[F5_ABS]]: DW_TAG_subprogram
63 ; REF-NOT: {{DW_TAG|NULL}}
64 ; REF: linkage_name ("_ZN2F42f5Ev")
65 ; REF-NEXT: DW_AT_specification ([[F5_DECL]]
66 ; REF: DW_TAG_inlined_subroutine
67 ; REF-NOT: {{DW_TAG|NULL}}
68 ; REF: DW_AT_abstract_origin ([[F5_ABS]]
71 ; Function Attrs: alwaysinline uwtable
72 define void @_Z2f2v() #0 !dbg !6 {
74 call void @_Z2f1v(), !dbg !9
78 declare void @_Z2f1v()
80 ; Function Attrs: uwtable
81 define void @_Z2f3v() !dbg !11 {
83 call void @_Z2f1v(), !dbg !12
87 ; Function Attrs: alwaysinline uwtable
88 define void @_ZN2F42f5Ev() #0 align 2 !dbg !15 {
90 call void @_Z2f1v(), !dbg !19
94 ; Function Attrs: uwtable
95 define void @_Z2f6v() !dbg !21 {
97 call void @_Z2f1v(), !dbg !22
101 attributes #0 = { alwaysinline }
104 !llvm.module.flags = !{!3, !4}
107 !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 4.0.0 (trunk 288231)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
108 !1 = !DIFile(filename: "linkage-name-abstract-static.cpp", directory: "/home/probinson/projects/scratch")
110 !3 = !{i32 2, !"Dwarf Version", i32 4}
111 !4 = !{i32 2, !"Debug Info Version", i32 3}
112 !5 = !{!"clang version 4.0.0 (trunk 288231)"}
113 !6 = distinct !DISubprogram(name: "f2", linkageName: "_Z2f2v", scope: !1, file: !1, line: 2, type: !7, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2)
114 !7 = !DISubroutineType(types: !8)
116 !9 = !DILocation(line: 3, column: 3, scope: !6)
117 !10 = !DILocation(line: 4, column: 1, scope: !6)
118 !11 = distinct !DISubprogram(name: "f3", linkageName: "_Z2f3v", scope: !1, file: !1, line: 5, type: !7, isLocal: false, isDefinition: true, scopeLine: 5, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2)
119 !12 = !DILocation(line: 3, column: 3, scope: !6, inlinedAt: !13)
120 !13 = distinct !DILocation(line: 6, column: 3, scope: !11)
121 !14 = !DILocation(line: 7, column: 1, scope: !11)
122 !15 = distinct !DISubprogram(name: "f5", linkageName: "_ZN2F42f5Ev", scope: !16, file: !1, line: 12, type: !7, isLocal: false, isDefinition: true, scopeLine: 12, flags: DIFlagPrototyped, isOptimized: false, unit: !0, declaration: !18, retainedNodes: !2)
123 !16 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "F4", file: !1, line: 9, size: 8, elements: !17, identifier: "_ZTS2F4")
125 !18 = !DISubprogram(name: "f5", linkageName: "_ZN2F42f5Ev", scope: !16, file: !1, line: 10, type: !7, isLocal: false, isDefinition: false, scopeLine: 10, flags: DIFlagPrototyped, isOptimized: false)
126 !19 = !DILocation(line: 13, column: 3, scope: !15)
127 !20 = !DILocation(line: 14, column: 1, scope: !15)
128 !21 = distinct !DISubprogram(name: "f6", linkageName: "_Z2f6v", scope: !1, file: !1, line: 15, type: !7, isLocal: false, isDefinition: true, scopeLine: 15, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2)
129 !22 = !DILocation(line: 13, column: 3, scope: !15, inlinedAt: !23)
130 !23 = distinct !DILocation(line: 16, column: 3, scope: !21)
131 !24 = !DILocation(line: 17, column: 1, scope: !21)