1; UNSUPPORTED: system-windows 2; REQUIRES: x86-registered-target 3; RUN: llc %s -o %t0.o -filetype=obj 4; RUN: %llvm-locstats %t0.o | FileCheck %s --check-prefix=LOCSTATS 5; 6; Test the llvm-locstats output. 7; LOCSTATS: 0% 0 0% 8; LOCSTATS: (0%,10%) 0 0% 9; LOCSTATS: [10%,20%) 0 0% 10; LOCSTATS: [20%,30%) 1 11% 11; LOCSTATS: [30%,40%) 0 0% 12; LOCSTATS: [40%,50%) 0 0% 13; LOCSTATS: [50%,60%) 0 0% 14; LOCSTATS: [60%,70%) 3 33% 15; LOCSTATS: [70%,80%) 0 0% 16; LOCSTATS: [80%,90%) 2 22% 17; LOCSTATS: [90%,100%) 1 11% 18; LOCSTATS: 100% 2 22% 19; 20; The source code of the test case: 21;extern int fn2 (int); 22; 23;__attribute__((noinline)) 24;int 25;fn1 (int *x, int *y) 26;{ 27; int a = *x; 28; int b = *y; 29; int local = a + b; 30; if (a > 1) { 31; local += 2; 32; ++local; 33; if (local > 200) 34; local -= fn2(a); 35; } else { 36; local += 3; 37; ++local; 38; local += fn2(a); 39; } 40; if (b > 4) 41; local += a; 42; int local2 = 7; 43; local -= fn2 (local2); 44; return local; 45;} 46; 47;__attribute__((noinline)) 48;int f() 49;{ 50; int l, k; 51; int res = 0; 52; res += fn1 (&l, &k); 53; return res; 54;} 55; 56; ModuleID = 'locstats.c' 57source_filename = "locstats.c" 58target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" 59target triple = "x86_64-unknown-linux-gnu" 60 61; Function Attrs: noinline nounwind uwtable 62define dso_local i32 @fn1(i32* nocapture readonly %0, i32* nocapture readonly %1) local_unnamed_addr !dbg !7 { 63 call void @llvm.dbg.value(metadata i32* %0, metadata !13, metadata !DIExpression()), !dbg !19 64 call void @llvm.dbg.value(metadata i32* %1, metadata !14, metadata !DIExpression()), !dbg !19 65 %3 = load i32, i32* %0, align 4, !dbg !20 66 call void @llvm.dbg.value(metadata i32 %3, metadata !15, metadata !DIExpression()), !dbg !19 67 %4 = load i32, i32* %1, align 4, !dbg !20 68 call void @llvm.dbg.value(metadata i32 %4, metadata !16, metadata !DIExpression()), !dbg !19 69 %5 = add nsw i32 %4, %3, !dbg !20 70 call void @llvm.dbg.value(metadata i32 %5, metadata !17, metadata !DIExpression()), !dbg !19 71 %6 = icmp sgt i32 %3, 1, !dbg !20 72 br i1 %6, label %7, label %13, !dbg !22 73 747: ; preds = %2 75 call void @llvm.dbg.value(metadata i32 %5, metadata !17, metadata !DIExpression(DW_OP_plus_uconst, 2, DW_OP_stack_value)), !dbg !19 76 %8 = add nsw i32 %5, 3, !dbg !23 77 call void @llvm.dbg.value(metadata i32 %8, metadata !17, metadata !DIExpression()), !dbg !19 78 %9 = icmp sgt i32 %8, 200, !dbg !25 79 br i1 %9, label %10, label %17, !dbg !27 80 8110: ; preds = %7 82 %11 = tail call i32 @fn2(i32 %3), !dbg !27 83 %12 = sub nsw i32 %8, %11, !dbg !27 84 call void @llvm.dbg.value(metadata i32 %12, metadata !17, metadata !DIExpression()), !dbg !19 85 br label %17, !dbg !27 86 8713: ; preds = %2 88 call void @llvm.dbg.value(metadata i32 %5, metadata !17, metadata !DIExpression(DW_OP_plus_uconst, 3, DW_OP_stack_value)), !dbg !19 89 %14 = add nsw i32 %5, 4, !dbg !28 90 call void @llvm.dbg.value(metadata i32 %14, metadata !17, metadata !DIExpression()), !dbg !19 91 %15 = tail call i32 @fn2(i32 %3), !dbg !30 92 %16 = add nsw i32 %14, %15, !dbg !30 93 call void @llvm.dbg.value(metadata i32 %16, metadata !17, metadata !DIExpression()), !dbg !19 94 br label %17 95 9617: ; preds = %7, %10, %13 97 %18 = phi i32 [ %12, %10 ], [ %8, %7 ], [ %16, %13 ], !dbg !31 98 call void @llvm.dbg.value(metadata i32 %18, metadata !17, metadata !DIExpression()), !dbg !19 99 %19 = icmp sgt i32 %4, 4, !dbg !32 100 %20 = select i1 %19, i32 %3, i32 0, !dbg !34 101 %21 = add nsw i32 %18, %20, !dbg !34 102 call void @llvm.dbg.value(metadata i32 %21, metadata !17, metadata !DIExpression()), !dbg !19 103 call void @llvm.dbg.value(metadata i32 7, metadata !18, metadata !DIExpression()), !dbg !19 104 %22 = tail call i32 @fn2(i32 7), !dbg !34 105 %23 = sub i32 %21, %22, !dbg !34 106 call void @llvm.dbg.value(metadata i32 %23, metadata !17, metadata !DIExpression()), !dbg !19 107 ret i32 %23, !dbg !34 108} 109 110declare dso_local i32 @fn2(i32) local_unnamed_addr 111 112; Function Attrs: noinline nounwind uwtable 113define dso_local i32 @f() local_unnamed_addr !dbg !35 { 114 %1 = alloca i32, align 4 115 %2 = alloca i32, align 4 116 %3 = bitcast i32* %1 to i8*, !dbg !42 117 %4 = bitcast i32* %2 to i8*, !dbg !42 118 call void @llvm.dbg.value(metadata i32 0, metadata !41, metadata !DIExpression()), !dbg !42 119 call void @llvm.dbg.value(metadata i32* %1, metadata !39, metadata !DIExpression(DW_OP_deref)), !dbg !42 120 call void @llvm.dbg.value(metadata i32* %2, metadata !40, metadata !DIExpression(DW_OP_deref)), !dbg !42 121 %5 = call i32 @fn1(i32* nonnull %1, i32* nonnull %2), !dbg !42 122 call void @llvm.dbg.value(metadata i32 %5, metadata !41, metadata !DIExpression()), !dbg !42 123 ret i32 %5, !dbg !42 124} 125 126; Function Attrs: nounwind readnone speculatable willreturn 127declare void @llvm.dbg.value(metadata, metadata, metadata) 128 129!llvm.dbg.cu = !{!0} 130!llvm.module.flags = !{!3, !4, !5} 131!llvm.ident = !{!6} 132 133!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 10.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, nameTableKind: None) 134!1 = !DIFile(filename: "locstats.c", directory: "/dir") 135!2 = !{} 136!3 = !{i32 2, !"Dwarf Version", i32 4} 137!4 = !{i32 2, !"Debug Info Version", i32 3} 138!5 = !{i32 1, !"wchar_size", i32 4} 139!6 = !{!"clang version 10.0.0"} 140!7 = distinct !DISubprogram(name: "fn1", scope: !1, file: !1, line: 5, type: !8, scopeLine: 6, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !12) 141!8 = !DISubroutineType(types: !9) 142!9 = !{!10, !11, !11} 143!10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 144!11 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !10, size: 64) 145!12 = !{!13, !14, !15, !16, !17, !18} 146!13 = !DILocalVariable(name: "x", arg: 1, scope: !7, file: !1, line: 5, type: !11) 147!14 = !DILocalVariable(name: "y", arg: 2, scope: !7, file: !1, line: 5, type: !11) 148!15 = !DILocalVariable(name: "a", scope: !7, file: !1, line: 7, type: !10) 149!16 = !DILocalVariable(name: "b", scope: !7, file: !1, line: 8, type: !10) 150!17 = !DILocalVariable(name: "local", scope: !7, file: !1, line: 9, type: !10) 151!18 = !DILocalVariable(name: "local2", scope: !7, file: !1, line: 22, type: !10) 152!19 = !DILocation(line: 0, scope: !7) 153!20 = !DILocation(line: 7, column: 11, scope: !7) 154!21 = distinct !DILexicalBlock(scope: !7, file: !1, line: 10, column: 7) 155!22 = !DILocation(line: 10, column: 7, scope: !7) 156!23 = !DILocation(line: 12, column: 5, scope: !24) 157!24 = distinct !DILexicalBlock(scope: !21, file: !1, line: 10, column: 14) 158!25 = !DILocation(line: 13, column: 15, scope: !26) 159!26 = distinct !DILexicalBlock(scope: !24, file: !1, line: 13, column: 9) 160!27 = !DILocation(line: 13, column: 9, scope: !24) 161!28 = !DILocation(line: 17, column: 5, scope: !26) 162!29 = distinct !DILexicalBlock(scope: !21, file: !1, line: 15, column: 10) 163!30 = !DILocation(line: 18, column: 14, scope: !29) 164!31 = !DILocation(line: 0, scope: !21) 165!32 = !DILocation(line: 20, column: 9, scope: !33) 166!33 = distinct !DILexicalBlock(scope: !7, file: !1, line: 20, column: 7) 167!34 = !DILocation(line: 20, column: 7, scope: !7) 168!35 = distinct !DISubprogram(name: "f", scope: !1, file: !1, line: 28, type: !36, scopeLine: 29, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !38) 169!36 = !DISubroutineType(types: !37) 170!37 = !{!10} 171!38 = !{!39, !40, !41} 172!39 = !DILocalVariable(name: "l", scope: !35, file: !1, line: 30, type: !10) 173!40 = !DILocalVariable(name: "k", scope: !35, file: !1, line: 30, type: !10) 174!41 = !DILocalVariable(name: "res", scope: !35, file: !1, line: 31, type: !10) 175!42 = !DILocation(line: 30, column: 3, scope: !35) 176