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 3 5 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 !18 9 call void @llvm.dbg.value(metadata i32 %x, metadata !19, metadata !DIExpression()), !dbg !22 10 %0 = load volatile i32, ptr @factor, align 4, !dbg !24, !tbaa !25 11 call void @llvm.dbg.value(metadata i32 %0, metadata !29, metadata !DIExpression()), !dbg !32 12 %cmp.i.i = icmp slt i32 %0, 3, !dbg !34 13 %add.i.i = add nsw i32 %0, 3, !dbg !36 14 %retval.0.i.i = select i1 %cmp.i.i, i32 %0, i32 %add.i.i, !dbg !36 15 %sub.i = sub nsw i32 %x, %retval.0.i.i, !dbg !37 16 call void @llvm.dbg.value(metadata i32 %sub.i, metadata !19, metadata !DIExpression()), !dbg !22 17 call void @llvm.dbg.value(metadata i32 %sub.i, metadata !17, metadata !DIExpression()), !dbg !18 18 ret i32 %sub.i, !dbg !38 19} 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 !39 24 %0 = load volatile i32, ptr @factor, align 4, !dbg !40, !tbaa !25 25 call void @llvm.dbg.value(metadata i32 %0, metadata !29, metadata !DIExpression()), !dbg !41 26 %cmp.i = icmp slt i32 %0, 3, !dbg !43 27 %add.i = add nsw i32 %0, 3, !dbg !44 28 %retval.0.i = select i1 %cmp.i, i32 %0, i32 %add.i, !dbg !44 29 %sub = sub nsw i32 %x, %retval.0.i, !dbg !45 30 call void @llvm.dbg.value(metadata i32 %sub, metadata !19, metadata !DIExpression()), !dbg !39 31 ret i32 %sub, !dbg !46 32} 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 !47 37 %cmp = icmp slt i32 %x, 3, !dbg !48 38 %add = add nsw i32 %x, 3, !dbg !49 39 %retval.0 = select i1 %cmp, i32 %x, i32 %add, !dbg !49 40 ret i32 %retval.0, !dbg !50 41} 42 43declare void @llvm.dbg.value(metadata, metadata, metadata) #2 44 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