1 ; RUN: %llc_dwarf -O0 -filetype=obj -dwarf-linkage-names=Abstract < %s | llvm-dwarfdump -v -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 -v -debug-info - > %t
6 ; RUN: FileCheck %s -check-prefix=ONENAME < %t
7 ; RUN: FileCheck %s -check-prefix=REF < %t
8 ; REQUIRES: object-emission
10 ; Verify that the only linkage-name present is the abstract origin of the
13 ; IR generated from clang -O0 with:
15 ; __attribute__((always_inline)) void f2() {
23 ; __attribute__((always_inline)) void f5();
32 ; Show that the only linkage names are for the inlined functions,
33 ; because those are the ones with an abstract origin.
34 ; ONENAME-NOT: {{DW_AT(_MIPS)?_linkage_name}}
35 ; ONENAME: {{DW_AT(_MIPS)?_linkage_name}} {{.*}} "_Z2f2v"
36 ; ONENAME-NOT: {{DW_AT(_MIPS)?_linkage_name}}
37 ; ONENAME: {{DW_AT(_MIPS)?_linkage_name}} {{.*}} "_ZN2F42f5Ev"
38 ; ONENAME-NOT: {{DW_AT(_MIPS)?_linkage_name}}
40 ; For f2() we see the definition pointing to an abstract origin DIE,
41 ; which in turn is where the linkage_name is; and then there's
42 ; an inlined_subroutine pointing back to the abstract origin.
43 ; The order of these DIEs is not important of course, just the links.
44 ; REF: DW_TAG_subprogram
45 ; REF-NOT: {{DW_TAG|NULL}}
46 ; REF: DW_AT_abstract_origin {{.*}} {[[F2:0x.*]]} "_Z2f2v"
47 ; REF: [[F2]]: DW_TAG_subprogram
48 ; REF-NEXT: linkage_name {{.*}} "_Z2f2v"
49 ; REF: DW_TAG_inlined_subroutine
50 ; REF-NOT: {{DW_TAG|NULL}}
51 ; REF: DW_AT_abstract_origin {{.*}} {[[F2]]}
53 ; For F4::f5(), first we see the in-class declaration,
54 ; then the definition, abstract origin, and the inlined_subroutine.
55 ; REF: DW_TAG_structure_type
56 ; REF-NEXT: DW_AT_name {{.*}} "F4"
57 ; REF-NOT: {{DW_TAG|NULL}}
58 ; REF: [[F5_DECL:0x.*]]: DW_TAG_subprogram
59 ; REF-NEXT: DW_AT_name {{.*}} "f5"
60 ; REF: DW_TAG_subprogram
61 ; REF-NOT: {{DW_TAG|NULL}}
62 ; REF: DW_AT_abstract_origin {{.*}} {[[F5_ABS:0x.*]]} "_ZN2F42f5Ev"
63 ; REF: [[F5_ABS]]: DW_TAG_subprogram
64 ; REF-NOT: {{DW_TAG|NULL}}
65 ; REF: linkage_name {{.*}} "_ZN2F42f5Ev"
66 ; REF-NEXT: DW_AT_specification {{.*}} {[[F5_DECL]]}
67 ; REF: DW_TAG_inlined_subroutine
68 ; REF-NOT: {{DW_TAG|NULL}}
69 ; REF: DW_AT_abstract_origin {{.*}} {[[F5_ABS]]}
72 ; Function Attrs: alwaysinline uwtable
73 define void @_Z2f2v() #0 !dbg !6 {
75 call void @_Z2f1v(), !dbg !9
79 declare void @_Z2f1v()
81 ; Function Attrs: uwtable
82 define void @_Z2f3v() !dbg !11 {
84 call void @_Z2f1v(), !dbg !12
88 ; Function Attrs: alwaysinline uwtable
89 define void @_ZN2F42f5Ev() #0 align 2 !dbg !15 {
91 call void @_Z2f1v(), !dbg !19
95 ; Function Attrs: uwtable
96 define void @_Z2f6v() !dbg !21 {
98 call void @_Z2f1v(), !dbg !22
102 attributes #0 = { alwaysinline }
105 !llvm.module.flags = !{!3, !4}
108 !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)
109 !1 = !DIFile(filename: "linkage-name-abstract-static.cpp", directory: "/home/probinson/projects/scratch")
111 !3 = !{i32 2, !"Dwarf Version", i32 4}
112 !4 = !{i32 2, !"Debug Info Version", i32 3}
113 !5 = !{!"clang version 4.0.0 (trunk 288231)"}
114 !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)
115 !7 = !DISubroutineType(types: !8)
117 !9 = !DILocation(line: 3, column: 3, scope: !6)
118 !10 = !DILocation(line: 4, column: 1, scope: !6)
119 !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)
120 !12 = !DILocation(line: 3, column: 3, scope: !6, inlinedAt: !13)
121 !13 = distinct !DILocation(line: 6, column: 3, scope: !11)
122 !14 = !DILocation(line: 7, column: 1, scope: !11)
123 !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)
124 !16 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "F4", file: !1, line: 9, size: 8, elements: !17, identifier: "_ZTS2F4")
126 !18 = !DISubprogram(name: "f5", linkageName: "_ZN2F42f5Ev", scope: !16, file: !1, line: 10, type: !7, isLocal: false, isDefinition: false, scopeLine: 10, flags: DIFlagPrototyped, isOptimized: false)
127 !19 = !DILocation(line: 13, column: 3, scope: !15)
128 !20 = !DILocation(line: 14, column: 1, scope: !15)
129 !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)
130 !22 = !DILocation(line: 13, column: 3, scope: !15, inlinedAt: !23)
131 !23 = distinct !DILocation(line: 16, column: 3, scope: !21)
132 !24 = !DILocation(line: 17, column: 1, scope: !21)