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65 lines
3.0 KiB
LLVM
65 lines
3.0 KiB
LLVM
; RUN: %llc_dwarf -O2 %s -o - | FileCheck %s
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; Check struct X for dead variable xyz from inlined function foo.
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; CHECK: debug_info,
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; CHECK: DW_TAG_structure_type
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; CHECK-NEXT: DW_AT_name
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source_filename = "test/DebugInfo/Generic/2010-06-29-InlinedFnLocalVar.ll"
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@i = common global i32 0, !dbg !0
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; Function Attrs: nounwind readnone
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declare void @llvm.dbg.declare(metadata, metadata, metadata) #0
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; Function Attrs: nounwind readnone
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declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #0
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; Function Attrs: nounwind ssp
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define i32 @bar() #1 !dbg !8 {
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entry:
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%0 = load i32, i32* @i, align 4, !dbg !11
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tail call void @llvm.dbg.value(metadata i32 %0, i64 0, metadata !13, metadata !24), !dbg !25
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tail call void @llvm.dbg.declare(metadata !5, metadata !18, metadata !24), !dbg !26
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%1 = mul nsw i32 %0, %0, !dbg !27
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store i32 %1, i32* @i, align 4, !dbg !11
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ret i32 %1, !dbg !28
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}
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attributes #0 = { nounwind readnone }
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attributes #1 = { nounwind ssp }
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!llvm.dbg.cu = !{!4}
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!llvm.module.flags = !{!7}
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!0 = !DIGlobalVariableExpression(var: !1)
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!1 = !DIGlobalVariable(name: "i", scope: !2, file: !2, line: 5, type: !3, isLocal: false, isDefinition: true)
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!2 = !DIFile(filename: "bar.c", directory: "/tmp/")
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!3 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!4 = distinct !DICompileUnit(language: DW_LANG_C89, file: !2, producer: "4.2.1 (Based on Apple Inc. build 5658) (LLVM build)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !5, retainedTypes: !5, globals: !6, imports: !5)
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!5 = !{}
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!6 = !{!0}
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!7 = !{i32 1, !"Debug Info Version", i32 3}
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!8 = distinct !DISubprogram(name: "bar", linkageName: "bar", scope: !2, file: !2, line: 14, type: !9, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, unit: !4)
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!9 = !DISubroutineType(types: !10)
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!10 = !{!3}
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!11 = !DILocation(line: 15, scope: !12)
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!12 = distinct !DILexicalBlock(scope: !8, file: !2, line: 14)
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!13 = !DILocalVariable(name: "j", arg: 1, scope: !14, file: !2, line: 9, type: !3)
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!14 = distinct !DISubprogram(name: "foo", scope: !2, file: !2, line: 9, type: !15, isLocal: true, isDefinition: true, scopeLine: 9, virtualIndex: 6, isOptimized: true, unit: !4, variables: !17)
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!15 = !DISubroutineType(types: !16)
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!16 = !{!3, !3}
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!17 = !{!13, !18}
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!18 = !DILocalVariable(name: "xyz", scope: !19, file: !2, line: 10, type: !20)
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!19 = distinct !DILexicalBlock(scope: !14, file: !2, line: 9)
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!20 = !DICompositeType(tag: DW_TAG_structure_type, name: "X", scope: !14, file: !2, line: 10, size: 64, align: 32, elements: !21)
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!21 = !{!22, !23}
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!22 = !DIDerivedType(tag: DW_TAG_member, name: "a", scope: !20, file: !2, line: 10, baseType: !3, size: 32, align: 32)
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!23 = !DIDerivedType(tag: DW_TAG_member, name: "b", scope: !20, file: !2, line: 10, baseType: !3, size: 32, align: 32, offset: 32)
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!24 = !DIExpression()
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!25 = !DILocation(line: 9, scope: !14, inlinedAt: !11)
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!26 = !DILocation(line: 9, scope: !19, inlinedAt: !11)
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!27 = !DILocation(line: 11, scope: !19, inlinedAt: !11)
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!28 = !DILocation(line: 16, scope: !12)
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