| ; RUN: %llc_dwarf -O0 -filetype=obj -dwarf-linkage-names=Abstract < %s | llvm-dwarfdump -debug-info - > %t |
| ; RUN: FileCheck %s -check-prefix=ONENAME < %t |
| ; RUN: FileCheck %s -check-prefix=REF < %t |
| ; Verify tuning for SCE gets us Abstract only. |
| ; RUN: %llc_dwarf -O0 -filetype=obj -debugger-tune=sce < %s | llvm-dwarfdump -debug-info - > %t |
| ; RUN: FileCheck %s -check-prefix=ONENAME < %t |
| ; RUN: FileCheck %s -check-prefix=REF < %t |
| |
| ; Verify that the only linkage-name present is the abstract origin of the |
| ; inlined subprogram. |
| |
| ; IR generated from clang -O0 with: |
| ; void f1(); |
| ; __attribute__((always_inline)) void f2() { |
| ; f1(); |
| ; } |
| ; void f3() { |
| ; f2(); |
| ; } |
| ; |
| ; struct F4 { |
| ; __attribute__((always_inline)) void f5(); |
| ; }; |
| ; void F4::f5() { |
| ; f1(); |
| ; } |
| ; void f6() { |
| ; F4::f5(); |
| ; } |
| |
| ; Show that the only linkage names are for the inlined functions, |
| ; because those are the ones with an abstract origin. |
| ; ONENAME-NOT: {{DW_AT(_MIPS)?_linkage_name}} |
| ; ONENAME: {{DW_AT(_MIPS)?_linkage_name}} ("_Z2f2v") |
| ; ONENAME-NOT: {{DW_AT(_MIPS)?_linkage_name}} |
| ; ONENAME: {{DW_AT(_MIPS)?_linkage_name}} ("_ZN2F42f5Ev") |
| ; ONENAME-NOT: {{DW_AT(_MIPS)?_linkage_name}} |
| |
| ; For f2() we see the definition pointing to an abstract origin DIE, |
| ; which in turn is where the linkage_name is; and then there's |
| ; an inlined_subroutine pointing back to the abstract origin. |
| ; The order of these DIEs is not important of course, just the links. |
| ; REF: DW_TAG_subprogram |
| ; REF-NOT: {{DW_TAG|NULL}} |
| ; REF: DW_AT_abstract_origin ([[F2:0x.*]] "_Z2f2v") |
| ; REF: [[F2]]: DW_TAG_subprogram |
| ; REF-NEXT: linkage_name ("_Z2f2v") |
| ; REF: DW_TAG_inlined_subroutine |
| ; REF-NOT: {{DW_TAG|NULL}} |
| ; REF: DW_AT_abstract_origin ([[F2]] |
| |
| ; For F4::f5(), first we see the in-class declaration, |
| ; then the definition, abstract origin, and the inlined_subroutine. |
| ; REF: DW_TAG_structure_type |
| ; REF-NEXT: DW_AT_name ("F4") |
| ; REF-NOT: {{DW_TAG|NULL}} |
| ; REF: [[F5_DECL:0x.*]]: DW_TAG_subprogram |
| ; REF-NEXT: DW_AT_name ("f5") |
| ; REF: DW_TAG_subprogram |
| ; REF-NOT: {{DW_TAG|NULL}} |
| ; REF: DW_AT_abstract_origin ([[F5_ABS:0x.*]] "_ZN2F42f5Ev") |
| ; REF: [[F5_ABS]]: DW_TAG_subprogram |
| ; REF-NOT: {{DW_TAG|NULL}} |
| ; REF: linkage_name ("_ZN2F42f5Ev") |
| ; REF-NEXT: DW_AT_specification ([[F5_DECL]] |
| ; REF: DW_TAG_inlined_subroutine |
| ; REF-NOT: {{DW_TAG|NULL}} |
| ; REF: DW_AT_abstract_origin ([[F5_ABS]] |
| |
| |
| ; Function Attrs: alwaysinline uwtable |
| define void @_Z2f2v() #0 !dbg !6 { |
| entry: |
| call void @_Z2f1v(), !dbg !9 |
| ret void, !dbg !10 |
| } |
| |
| declare void @_Z2f1v() |
| |
| ; Function Attrs: uwtable |
| define void @_Z2f3v() !dbg !11 { |
| entry: |
| call void @_Z2f1v(), !dbg !12 |
| ret void, !dbg !14 |
| } |
| |
| ; Function Attrs: alwaysinline uwtable |
| define void @_ZN2F42f5Ev() #0 align 2 !dbg !15 { |
| entry: |
| call void @_Z2f1v(), !dbg !19 |
| ret void, !dbg !20 |
| } |
| |
| ; Function Attrs: uwtable |
| define void @_Z2f6v() !dbg !21 { |
| entry: |
| call void @_Z2f1v(), !dbg !22 |
| ret void, !dbg !24 |
| } |
| |
| attributes #0 = { alwaysinline } |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!3, !4} |
| !llvm.ident = !{!5} |
| |
| !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) |
| !1 = !DIFile(filename: "linkage-name-abstract-static.cpp", directory: "/home/probinson/projects/scratch") |
| !2 = !{} |
| !3 = !{i32 2, !"Dwarf Version", i32 4} |
| !4 = !{i32 2, !"Debug Info Version", i32 3} |
| !5 = !{!"clang version 4.0.0 (trunk 288231)"} |
| !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) |
| !7 = !DISubroutineType(types: !8) |
| !8 = !{null} |
| !9 = !DILocation(line: 3, column: 3, scope: !6) |
| !10 = !DILocation(line: 4, column: 1, scope: !6) |
| !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) |
| !12 = !DILocation(line: 3, column: 3, scope: !6, inlinedAt: !13) |
| !13 = distinct !DILocation(line: 6, column: 3, scope: !11) |
| !14 = !DILocation(line: 7, column: 1, scope: !11) |
| !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) |
| !16 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "F4", file: !1, line: 9, size: 8, elements: !17, identifier: "_ZTS2F4") |
| !17 = !{!18} |
| !18 = !DISubprogram(name: "f5", linkageName: "_ZN2F42f5Ev", scope: !16, file: !1, line: 10, type: !7, isLocal: false, isDefinition: false, scopeLine: 10, flags: DIFlagPrototyped, isOptimized: false) |
| !19 = !DILocation(line: 13, column: 3, scope: !15) |
| !20 = !DILocation(line: 14, column: 1, scope: !15) |
| !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) |
| !22 = !DILocation(line: 13, column: 3, scope: !15, inlinedAt: !23) |
| !23 = distinct !DILocation(line: 16, column: 3, scope: !21) |
| !24 = !DILocation(line: 17, column: 1, scope: !21) |