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