1; Ensure that we can correctly emit a compile unit for outlined functions and 2; that we correctly emit DISubprograms for those functions. 3; Also make sure that the DISubprograms reference the generated unit. 4; make sure that if there are two outlined functions in the program, 5; RUN: llc %s -verify-machineinstrs -enable-machine-outliner -mtriple=x86_64-apple-darwin -o /dev/null -print-after=machine-outliner 6define void @f6() #0 !dbg !8 { 7entry: 8 %dog = alloca i32, align 4 9 %cat = alloca i32, align 4 10 %pangolin = alloca i32, align 4 11 call void @llvm.dbg.declare(metadata i32* %dog, metadata !11, metadata !DIExpression()), !dbg !13 12 store i32 16, i32* %dog, align 4, !dbg !13 13 call void @llvm.dbg.declare(metadata i32* %cat, metadata !14, metadata !DIExpression()), !dbg !15 14 store i32 32, i32* %cat, align 4, !dbg !15 15 call void @llvm.dbg.declare(metadata i32* %pangolin, metadata !16, metadata !DIExpression()), !dbg !17 16 store i32 48, i32* %pangolin, align 4, !dbg !17 17 ret void, !dbg !18 18} 19 20declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 21 22define void @f5() #0 !dbg !19 { 23entry: 24 %dog = alloca i32, align 4 25 %cat = alloca i32, align 4 26 %pangolin = alloca i32, align 4 27 call void @llvm.dbg.declare(metadata i32* %dog, metadata !20, metadata !DIExpression()), !dbg !21 28 store i32 16, i32* %dog, align 4, !dbg !21 29 call void @llvm.dbg.declare(metadata i32* %cat, metadata !22, metadata !DIExpression()), !dbg !23 30 store i32 32, i32* %cat, align 4, !dbg !23 31 call void @llvm.dbg.declare(metadata i32* %pangolin, metadata !24, metadata !DIExpression()), !dbg !25 32 store i32 48, i32* %pangolin, align 4, !dbg !25 33 ret void, !dbg !26 34} 35 36define void @f4() #0 !dbg !27 { 37entry: 38 %dog = alloca i32, align 4 39 %cat = alloca i32, align 4 40 %pangolin = alloca i32, align 4 41 call void @llvm.dbg.declare(metadata i32* %dog, metadata !28, metadata !DIExpression()), !dbg !29 42 store i32 16, i32* %dog, align 4, !dbg !29 43 call void @llvm.dbg.declare(metadata i32* %cat, metadata !30, metadata !DIExpression()), !dbg !31 44 store i32 32, i32* %cat, align 4, !dbg !31 45 call void @llvm.dbg.declare(metadata i32* %pangolin, metadata !32, metadata !DIExpression()), !dbg !33 46 store i32 48, i32* %pangolin, align 4, !dbg !33 47 ret void, !dbg !34 48} 49 50define i32 @f1() #0 !dbg !35 { 51entry: 52 %dog = alloca i32, align 4 53 %cat = alloca i32, align 4 54 %pangolin = alloca i32, align 4 55 call void @llvm.dbg.declare(metadata i32* %dog, metadata !38, metadata !DIExpression()), !dbg !39 56 store i32 1, i32* %dog, align 4, !dbg !39 57 call void @llvm.dbg.declare(metadata i32* %cat, metadata !40, metadata !DIExpression()), !dbg !41 58 store i32 2, i32* %cat, align 4, !dbg !41 59 call void @llvm.dbg.declare(metadata i32* %pangolin, metadata !42, metadata !DIExpression()), !dbg !43 60 store i32 3, i32* %pangolin, align 4, !dbg !43 61 store i32 16, i32* %dog, align 4, !dbg !44 62 %0 = load i32, i32* %dog, align 4, !dbg !45 63 ret i32 %0, !dbg !46 64} 65 66define i32 @f2() #0 !dbg !47 { 67entry: 68 %dog = alloca i32, align 4 69 %cat = alloca i32, align 4 70 %pangolin = alloca i32, align 4 71 call void @llvm.dbg.declare(metadata i32* %dog, metadata !48, metadata !DIExpression()), !dbg !49 72 store i32 1, i32* %dog, align 4, !dbg !49 73 call void @llvm.dbg.declare(metadata i32* %cat, metadata !50, metadata !DIExpression()), !dbg !51 74 store i32 2, i32* %cat, align 4, !dbg !51 75 call void @llvm.dbg.declare(metadata i32* %pangolin, metadata !52, metadata !DIExpression()), !dbg !53 76 store i32 3, i32* %pangolin, align 4, !dbg !53 77 store i32 16, i32* %dog, align 4, !dbg !54 78 %0 = load i32, i32* %dog, align 4, !dbg !55 79 ret i32 %0, !dbg !56 80} 81 82define i32 @f3() #0 !dbg !57 { 83entry: 84 %dog = alloca i32, align 4 85 %cat = alloca i32, align 4 86 %pangolin = alloca i32, align 4 87 call void @llvm.dbg.declare(metadata i32* %dog, metadata !58, metadata !DIExpression()), !dbg !59 88 store i32 1, i32* %dog, align 4, !dbg !59 89 call void @llvm.dbg.declare(metadata i32* %cat, metadata !60, metadata !DIExpression()), !dbg !61 90 store i32 2, i32* %cat, align 4, !dbg !61 91 call void @llvm.dbg.declare(metadata i32* %pangolin, metadata !62, metadata !DIExpression()), !dbg !63 92 store i32 3, i32* %pangolin, align 4, !dbg !63 93 store i32 16, i32* %dog, align 4, !dbg !64 94 %0 = load i32, i32* %dog, align 4, !dbg !65 95 ret i32 %0, !dbg !66 96} 97 98define i32 @main() #0 !dbg !67 { 99entry: 100 %retval = alloca i32, align 4 101 %a = alloca i32, align 4 102 store i32 0, i32* %retval, align 4 103 call void @llvm.dbg.declare(metadata i32* %a, metadata !68, metadata !DIExpression()), !dbg !69 104 store i32 4, i32* %a, align 4, !dbg !69 105 %call = call i32 @f1() #2, !dbg !70 106 %call1 = call i32 @f2() #2, !dbg !71 107 %call2 = call i32 @f3() #2, !dbg !72 108 ret i32 0, !dbg !73 109} 110 111; CHECK: distinct !DISubprogram(name: "OUTLINED_FUNCTION_1", 112; CHECK-SAME: scope: !1, 113; CHECK-SAME: file: !1, 114; CHECK-SAME: type: [[TYPE:![0-9]+]], 115; CHECK-SAME: isLocal: false, 116; CHECK-SAME: isDefinition: true, 117; CHECK-SAME: flags: DIFlagArtificial, 118; CHECK-SAME: isOptimized: true, 119; CHECK-SAME: unit: !0, 120; CHECK-SAME: retainedNodes: [[VARS:![0-9]+]] 121 122; CHECK: distinct !DISubprogram(name: "OUTLINED_FUNCTION_0", 123; CHECK-SAME: scope: !1, 124; CHECK-SAME: file: !1, 125; CHECK-SAME: type: [[TYPE]], 126; CHECK-SAME: isLocal: false, 127; CHECK-SAME: isDefinition: true, 128; CHECK-SAME: flags: DIFlagArtificial, 129; CHECK-SAME: isOptimized: true, 130; CHECK-SAME: unit: !0, 131; CHECK-SAME: retainedNodes: [[VARS]] 132 133attributes #0 = { noinline noredzone nounwind optnone ssp uwtable "no-frame-pointer-elim"="true" } 134attributes #1 = { nounwind readnone speculatable } 135attributes #2 = { noredzone } 136 137!llvm.dbg.cu = !{!0} 138!llvm.module.flags = !{!3, !4, !5, !6} 139!llvm.ident = !{!7} 140 141!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2) 142!1 = !DIFile(filename: "test.c", directory: "/") 143!2 = !{} 144!3 = !{i32 2, !"Dwarf Version", i32 4} 145!4 = !{i32 2, !"Debug Info Version", i32 3} 146!5 = !{i32 1, !"wchar_size", i32 4} 147!6 = !{i32 7, !"PIC Level", i32 2} 148!7 = !{!"clang"} 149!8 = distinct !DISubprogram(name: "f6", scope: !1, file: !1, line: 3, type: !9, isLocal: false, isDefinition: true, scopeLine: 3, isOptimized: false, unit: !0, retainedNodes: !2) 150!9 = !DISubroutineType(types: !10) 151!10 = !{null} 152!11 = !DILocalVariable(name: "dog", scope: !8, file: !1, line: 4, type: !12) 153!12 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 154!13 = !DILocation(line: 4, column: 16, scope: !8) 155!14 = !DILocalVariable(name: "cat", scope: !8, file: !1, line: 5, type: !12) 156!15 = !DILocation(line: 5, column: 16, scope: !8) 157!16 = !DILocalVariable(name: "pangolin", scope: !8, file: !1, line: 6, type: !12) 158!17 = !DILocation(line: 6, column: 16, scope: !8) 159!18 = !DILocation(line: 7, column: 1, scope: !8) 160!19 = distinct !DISubprogram(name: "f5", scope: !1, file: !1, line: 9, type: !9, isLocal: false, isDefinition: true, scopeLine: 9, isOptimized: false, unit: !0, retainedNodes: !2) 161!20 = !DILocalVariable(name: "dog", scope: !19, file: !1, line: 10, type: !12) 162!21 = !DILocation(line: 10, column: 16, scope: !19) 163!22 = !DILocalVariable(name: "cat", scope: !19, file: !1, line: 11, type: !12) 164!23 = !DILocation(line: 11, column: 16, scope: !19) 165!24 = !DILocalVariable(name: "pangolin", scope: !19, file: !1, line: 12, type: !12) 166!25 = !DILocation(line: 12, column: 16, scope: !19) 167!26 = !DILocation(line: 13, column: 1, scope: !19) 168!27 = distinct !DISubprogram(name: "f4", scope: !1, file: !1, line: 15, type: !9, isLocal: false, isDefinition: true, scopeLine: 15, isOptimized: false, unit: !0, retainedNodes: !2) 169!28 = !DILocalVariable(name: "dog", scope: !27, file: !1, line: 16, type: !12) 170!29 = !DILocation(line: 16, column: 16, scope: !27) 171!30 = !DILocalVariable(name: "cat", scope: !27, file: !1, line: 17, type: !12) 172!31 = !DILocation(line: 17, column: 16, scope: !27) 173!32 = !DILocalVariable(name: "pangolin", scope: !27, file: !1, line: 18, type: !12) 174!33 = !DILocation(line: 18, column: 16, scope: !27) 175!34 = !DILocation(line: 19, column: 1, scope: !27) 176!35 = distinct !DISubprogram(name: "f1", scope: !1, file: !1, line: 21, type: !36, isLocal: false, isDefinition: true, scopeLine: 21, isOptimized: false, unit: !0, retainedNodes: !2) 177!36 = !DISubroutineType(types: !37) 178!37 = !{!12} 179!38 = !DILocalVariable(name: "dog", scope: !35, file: !1, line: 22, type: !12) 180!39 = !DILocation(line: 22, column: 16, scope: !35) 181!40 = !DILocalVariable(name: "cat", scope: !35, file: !1, line: 23, type: !12) 182!41 = !DILocation(line: 23, column: 16, scope: !35) 183!42 = !DILocalVariable(name: "pangolin", scope: !35, file: !1, line: 24, type: !12) 184!43 = !DILocation(line: 24, column: 16, scope: !35) 185!44 = !DILocation(line: 25, column: 7, scope: !35) 186!45 = !DILocation(line: 26, column: 10, scope: !35) 187!46 = !DILocation(line: 26, column: 3, scope: !35) 188!47 = distinct !DISubprogram(name: "f2", scope: !1, file: !1, line: 29, type: !36, isLocal: false, isDefinition: true, scopeLine: 29, isOptimized: false, unit: !0, retainedNodes: !2) 189!48 = !DILocalVariable(name: "dog", scope: !47, file: !1, line: 30, type: !12) 190!49 = !DILocation(line: 30, column: 16, scope: !47) 191!50 = !DILocalVariable(name: "cat", scope: !47, file: !1, line: 31, type: !12) 192!51 = !DILocation(line: 31, column: 16, scope: !47) 193!52 = !DILocalVariable(name: "pangolin", scope: !47, file: !1, line: 32, type: !12) 194!53 = !DILocation(line: 32, column: 16, scope: !47) 195!54 = !DILocation(line: 33, column: 7, scope: !47) 196!55 = !DILocation(line: 34, column: 10, scope: !47) 197!56 = !DILocation(line: 34, column: 3, scope: !47) 198!57 = distinct !DISubprogram(name: "f3", scope: !1, file: !1, line: 37, type: !36, isLocal: false, isDefinition: true, scopeLine: 37, isOptimized: false, unit: !0, retainedNodes: !2) 199!58 = !DILocalVariable(name: "dog", scope: !57, file: !1, line: 38, type: !12) 200!59 = !DILocation(line: 38, column: 16, scope: !57) 201!60 = !DILocalVariable(name: "cat", scope: !57, file: !1, line: 39, type: !12) 202!61 = !DILocation(line: 39, column: 16, scope: !57) 203!62 = !DILocalVariable(name: "pangolin", scope: !57, file: !1, line: 40, type: !12) 204!63 = !DILocation(line: 40, column: 16, scope: !57) 205!64 = !DILocation(line: 41, column: 7, scope: !57) 206!65 = !DILocation(line: 42, column: 10, scope: !57) 207!66 = !DILocation(line: 42, column: 3, scope: !57) 208!67 = distinct !DISubprogram(name: "main", scope: !1, file: !1, line: 45, type: !36, isLocal: false, isDefinition: true, scopeLine: 45, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2) 209!68 = !DILocalVariable(name: "a", scope: !67, file: !1, line: 46, type: !12) 210!69 = !DILocation(line: 46, column: 16, scope: !67) 211!70 = !DILocation(line: 47, column: 3, scope: !67) 212!71 = !DILocation(line: 48, column: 3, scope: !67) 213!72 = !DILocation(line: 49, column: 3, scope: !67) 214!73 = !DILocation(line: 51, column: 3, scope: !67) 215