1 ; RUN: llc -mtriple i686-pc-cygwin -O2 %s -o - | FileCheck %s 2 ; Check struct X for dead variable xyz from inlined function foo. 3 4 ; CHECK: Lsection_info 5 ; CHECK: DW_TAG_structure_type 6 ; CHECK-NEXT: info_string 7 8 source_filename = "test/DebugInfo/X86/InlinedFnLocalVar.ll" 9 10 @i = common global i32 0, !dbg !0 11 12 ; Function Attrs: nounwind readnone 13 declare void @llvm.dbg.declare(metadata, metadata, metadata) #0 14 15 ; Function Attrs: nounwind readnone 16 declare void @llvm.dbg.value(metadata, metadata, metadata) #0 17 18 ; Function Attrs: nounwind ssp 19 define i32 @bar() #1 !dbg !8 { 20 entry: 21 %0 = load i32, i32* @i, align 4, !dbg !11 22 tail call void @llvm.dbg.value(metadata i32 %0, metadata !13, metadata !24), !dbg !25 23 tail call void @llvm.dbg.declare(metadata !5, metadata !18, metadata !24), !dbg !26 24 %1 = mul nsw i32 %0, %0, !dbg !27 25 store i32 %1, i32* @i, align 4, !dbg !11 26 ret i32 %1, !dbg !28 27 } 28 29 attributes #0 = { nounwind readnone } 30 attributes #1 = { nounwind ssp } 31 32 !llvm.dbg.cu = !{!4} 33 !llvm.module.flags = !{!7} 34 35 !0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) 36 !1 = !DIGlobalVariable(name: "i", scope: !2, file: !2, line: 5, type: !3, isLocal: false, isDefinition: true) 37 !2 = !DIFile(filename: "bar.c", directory: "/tmp/") 38 !3 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 39 !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) 40 !5 = !{} 41 !6 = !{!0} 42 !7 = !{i32 1, !"Debug Info Version", i32 3} 43 !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) 44 !9 = !DISubroutineType(types: !10) 45 !10 = !{!3} 46 !11 = !DILocation(line: 15, scope: !12) 47 !12 = distinct !DILexicalBlock(scope: !8, file: !2, line: 14) 48 !13 = !DILocalVariable(name: "j", arg: 1, scope: !14, file: !2, line: 9, type: !3) 49 !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, retainedNodes: !17) 50 !15 = !DISubroutineType(types: !16) 51 !16 = !{!3, !3} 52 !17 = !{!13, !18} 53 !18 = !DILocalVariable(name: "xyz", scope: !19, file: !2, line: 10, type: !20) 54 !19 = distinct !DILexicalBlock(scope: !14, file: !2, line: 9) 55 !20 = !DICompositeType(tag: DW_TAG_structure_type, name: "X", scope: !14, file: !2, line: 10, size: 64, align: 32, elements: !21) 56 !21 = !{!22, !23} 57 !22 = !DIDerivedType(tag: DW_TAG_member, name: "a", scope: !20, file: !2, line: 10, baseType: !3, size: 32, align: 32) 58 !23 = !DIDerivedType(tag: DW_TAG_member, name: "b", scope: !20, file: !2, line: 10, baseType: !3, size: 32, align: 32, offset: 32) 59 !24 = !DIExpression() 60 !25 = !DILocation(line: 9, scope: !14, inlinedAt: !11) 61 !26 = !DILocation(line: 9, scope: !19, inlinedAt: !11) 62 !27 = !DILocation(line: 11, scope: !19, inlinedAt: !11) 63 !28 = !DILocation(line: 16, scope: !12) 64 65
