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1target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"2target triple = "x86_64-unknown-linux-gnu"3 4@factor = dso_local global i32 35 6define dso_local i32 @funcA.llvm.1000(i32 %x) !dbg !12 {7entry:8 call void @llvm.dbg.value(metadata i32 %x, metadata !16, metadata !DIExpression()), !dbg !189 call void @llvm.dbg.value(metadata i32 %x, metadata !19, metadata !DIExpression()), !dbg !2210 %0 = load volatile i32, ptr @factor, align 4, !dbg !24, !tbaa !2511 call void @llvm.dbg.value(metadata i32 %0, metadata !29, metadata !DIExpression()), !dbg !3212 %cmp.i.i = icmp slt i32 %0, 3, !dbg !3413 %add.i.i = add nsw i32 %0, 3, !dbg !3614 %retval.0.i.i = select i1 %cmp.i.i, i32 %0, i32 %add.i.i, !dbg !3615 %sub.i = sub nsw i32 %x, %retval.0.i.i, !dbg !3716 call void @llvm.dbg.value(metadata i32 %sub.i, metadata !19, metadata !DIExpression()), !dbg !2217 call void @llvm.dbg.value(metadata i32 %sub.i, metadata !17, metadata !DIExpression()), !dbg !1818 ret i32 %sub.i, !dbg !3819}20 21define dso_local i32 @funcLeaf(i32 %x) !dbg !20 {22entry:23 call void @llvm.dbg.value(metadata i32 %x, metadata !19, metadata !DIExpression()), !dbg !3924 %0 = load volatile i32, ptr @factor, align 4, !dbg !40, !tbaa !2525 call void @llvm.dbg.value(metadata i32 %0, metadata !29, metadata !DIExpression()), !dbg !4126 %cmp.i = icmp slt i32 %0, 3, !dbg !4327 %add.i = add nsw i32 %0, 3, !dbg !4428 %retval.0.i = select i1 %cmp.i, i32 %0, i32 %add.i, !dbg !4429 %sub = sub nsw i32 %x, %retval.0.i, !dbg !4530 call void @llvm.dbg.value(metadata i32 %sub, metadata !19, metadata !DIExpression()), !dbg !3931 ret i32 %sub, !dbg !4632}33 34define dso_local i32 @fib(i32 %x) !dbg !30 {35entry:36 call void @llvm.dbg.value(metadata i32 %x, metadata !29, metadata !DIExpression()), !dbg !4737 %cmp = icmp slt i32 %x, 3, !dbg !4838 %add = add nsw i32 %x, 3, !dbg !4939 %retval.0 = select i1 %cmp, i32 %x, i32 %add, !dbg !4940 ret i32 %retval.0, !dbg !5041}42 43declare void @llvm.dbg.value(metadata, metadata, metadata) #244 45!llvm.dbg.cu = !{!2}46!llvm.module.flags = !{!8, !9, !10}47 48!1 = distinct !DIGlobalVariable(name: "factor", scope: !2, file: !3, line: 3, type: !6, isLocal: false, isDefinition: true)49!2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, emissionKind: FullDebug)50!3 = !DIFile(filename: "test.c", directory: "test")51!4 = !{}52!6 = !DIDerivedType(tag: DW_TAG_volatile_type, baseType: !7)53!7 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)54!8 = !{i32 7, !"Dwarf Version", i32 4}55!9 = !{i32 2, !"Debug Info Version", i32 3}56!10 = !{i32 1, !"wchar_size", i32 4}57!12 = distinct !DISubprogram(name: "funcA.llvm.1000", scope: !3, file: !3, line: 6, type: !13, scopeLine: 6, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !15)58!13 = !DISubroutineType(types: !14)59!14 = !{!7, !7}60!15 = !{!16, !17}61!16 = !DILocalVariable(name: "x", arg: 1, scope: !12, file: !3, line: 6, type: !7)62!17 = !DILocalVariable(name: "r", scope: !12, file: !3, line: 7, type: !7)63!18 = !DILocation(line: 0, scope: !12)64!19 = !DILocalVariable(name: "x", arg: 1, scope: !20, file: !3, line: 22, type: !7)65!20 = distinct !DISubprogram(name: "funcLeaf", scope: !3, file: !3, line: 22, type: !13, scopeLine: 23, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !21)66!21 = !{!19}67!22 = !DILocation(line: 0, scope: !20, inlinedAt: !23)68!23 = distinct !DILocation(line: 7, column: 11, scope: !12)69!24 = !DILocation(line: 24, column: 12, scope: !20, inlinedAt: !23)70!25 = !{!26, !26, i64 0}71!26 = !{!"int", !27, i64 0}72!27 = !{!"omnipotent char", !28, i64 0}73!28 = !{!"Simple C/C++ TBAA"}74!29 = !DILocalVariable(name: "x", arg: 1, scope: !30, file: !3, line: 11, type: !7)75!30 = distinct !DISubprogram(name: "fib", scope: !3, file: !3, line: 11, type: !13, scopeLine: 12, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !31)76!31 = !{!29}77!32 = !DILocation(line: 0, scope: !30, inlinedAt: !33)78!33 = distinct !DILocation(line: 24, column: 8, scope: !20, inlinedAt: !23)79!34 = !DILocation(line: 13, column: 9, scope: !35, inlinedAt: !33)80!35 = distinct !DILexicalBlock(scope: !30, file: !3, line: 13, column: 7)81!36 = !DILocation(line: 13, column: 7, scope: !30, inlinedAt: !33)82!37 = !DILocation(line: 24, column: 5, scope: !20, inlinedAt: !23)83!38 = !DILocation(line: 8, column: 3, scope: !12)84!39 = !DILocation(line: 0, scope: !20)85!40 = !DILocation(line: 24, column: 12, scope: !20)86!41 = !DILocation(line: 0, scope: !30, inlinedAt: !42)87!42 = distinct !DILocation(line: 24, column: 8, scope: !20)88!43 = !DILocation(line: 13, column: 9, scope: !35, inlinedAt: !42)89!44 = !DILocation(line: 13, column: 7, scope: !30, inlinedAt: !42)90!45 = !DILocation(line: 24, column: 5, scope: !20)91!46 = !DILocation(line: 25, column: 3, scope: !20)92!47 = !DILocation(line: 0, scope: !30)93!48 = !DILocation(line: 13, column: 9, scope: !35)94!49 = !DILocation(line: 13, column: 7, scope: !30)95!50 = !DILocation(line: 19, column: 1, scope: !30)96