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1; RUN: opt < %s -passes=sample-profile -sample-profile-file=%S/Inputs/pseudo-probe-missing-probe.prof -S | FileCheck %s2 3; CHECK: br i1 %tobool.not.i, label %if.end.i, label %if.then.i, !dbg ![[#]], !prof ![[#PROF:]]4 5; CHECK: [[#PROF]] = !{!"branch_weights", i32 918, i32 918}6; Verify the else branch is not set to a zero count7; CHECK-NOT: [[#PROF]] = !{!"branch_weights", i32 1698, i32 0}8 9@x = dso_local global i32 0, align 4, !dbg !010 11; Function Attrs: nofree noinline norecurse nounwind memory(readwrite, argmem: none) uwtable12define dso_local void @bar(i32 %i) local_unnamed_addr #0 !dbg !18 {13entry:14 #dbg_value(i32 poison, !22, !DIExpression(), !23)15 call void @llvm.pseudoprobe(i64 -2012135647395072713, i64 1, i32 0, i64 -1), !dbg !2416 %0 = load volatile i32, ptr @x, align 4, !dbg !24, !tbaa !2517 %add = add nsw i32 %0, 5, !dbg !2418 store volatile i32 %add, ptr @x, align 4, !dbg !24, !tbaa !2519 ret void, !dbg !2920}21 22; Function Attrs: nofree norecurse nounwind memory(readwrite, argmem: none) uwtable23define dso_local void @baz(i32 noundef %i) local_unnamed_addr #1 !dbg !30 {24entry:25 #dbg_value(i32 %i, !32, !DIExpression(), !33)26 call void @llvm.pseudoprobe(i64 7546896869197086323, i64 1, i32 0, i64 -1), !dbg !3427 %rem = srem i32 %i, 100, !dbg !3628 %tobool.not = icmp eq i32 %rem, 0, !dbg !3629 br i1 %tobool.not, label %if.end, label %if.then, !dbg !3730 31if.then: ; preds = %entry32 call void @llvm.pseudoprobe(i64 7546896869197086323, i64 2, i32 0, i64 -1), !dbg !3833 %0 = load volatile i32, ptr @x, align 4, !dbg !38, !tbaa !2534 %inc = add nsw i32 %0, 1, !dbg !3835 store volatile i32 %inc, ptr @x, align 4, !dbg !38, !tbaa !2536 br label %if.end, !dbg !3937 38if.end: ; preds = %if.then, %entry39 call void @llvm.pseudoprobe(i64 7546896869197086323, i64 3, i32 0, i64 -1), !dbg !4040 %1 = load volatile i32, ptr @x, align 4, !dbg !40, !tbaa !2541 %add = add nsw i32 %1, 2, !dbg !4042 store volatile i32 %add, ptr @x, align 4, !dbg !40, !tbaa !2543 %2 = and i32 %i, 1, !dbg !4144 %tobool2.not = icmp eq i32 %2, 0, !dbg !4145 br i1 %tobool2.not, label %if.else, label %if.end11, !dbg !4346 47if.else: ; preds = %if.end48 call void @llvm.pseudoprobe(i64 7546896869197086323, i64 5, i32 0, i64 -1), !dbg !4449 %rem5 = srem i32 %i, 3, !dbg !4650 %tobool6.not = icmp eq i32 %rem5, 0, !dbg !4651 %spec.select = select i1 %tobool6.not, i32 -1, i32 2, !dbg !4752 br label %if.end11, !dbg !4753 54if.end11: ; preds = %if.else, %if.end55 %.sink14 = phi i32 [ 1, %if.end ], [ %spec.select, %if.else ]56 %3 = load volatile i32, ptr @x, align 4, !dbg !48, !tbaa !2557 %add8 = add nsw i32 %3, %.sink14, !dbg !4858 store volatile i32 %add8, ptr @x, align 4, !dbg !48, !tbaa !2559 call void @llvm.pseudoprobe(i64 7546896869197086323, i64 9, i32 0, i64 -1), !dbg !4960 ret void, !dbg !4961}62 63; Function Attrs: nofree norecurse nounwind uwtable64define dso_local noundef i32 @main() local_unnamed_addr #2 !dbg !50 {65entry:66 call void @llvm.pseudoprobe(i64 -2624081020897602054, i64 1, i32 0, i64 -1), !dbg !5567 #dbg_value(i32 0, !54, !DIExpression(), !56)68 call void @llvm.pseudoprobe(i64 -2624081020897602054, i64 2, i32 0, i64 -1), !dbg !5769 br label %while.body, !dbg !5870 71while.body: ; preds = %entry, %if.end72 %inc7 = phi i32 [ 1, %entry ], [ %inc, %if.end ]73 %i.06 = phi i32 [ 0, %entry ], [ %inc7, %if.end ]74 #dbg_value(i32 %i.06, !54, !DIExpression(), !56)75 call void @llvm.pseudoprobe(i64 -2624081020897602054, i64 3, i32 0, i64 -1), !dbg !5976 %rem = urem i32 %inc7, 10, !dbg !6277 %tobool.not = icmp eq i32 %rem, 0, !dbg !6278 br i1 %tobool.not, label %if.else, label %if.then, !dbg !6379 80if.then: ; preds = %while.body81 call void @llvm.pseudoprobe(i64 -2624081020897602054, i64 4, i32 0, i64 -1), !dbg !6482 tail call void @bar(i32 poison), !dbg !6583 br label %if.end, !dbg !6784 85if.else: ; preds = %while.body86 call void @llvm.pseudoprobe(i64 -2624081020897602054, i64 6, i32 0, i64 -1), !dbg !6887 #dbg_value(i32 %inc7, !32, !DIExpression(), !69)88 call void @llvm.pseudoprobe(i64 7546896869197086323, i64 1, i32 0, i64 -1), !dbg !7289 %rem.i4 = urem i32 %inc7, 100, !dbg !7390 %tobool.not.i = icmp eq i32 %rem.i4, 0, !dbg !7391 br i1 %tobool.not.i, label %if.end.i, label %if.then.i, !dbg !7492 93if.then.i: ; preds = %if.else94 call void @llvm.pseudoprobe(i64 7546896869197086323, i64 2, i32 0, i64 -1), !dbg !7595 %0 = load volatile i32, ptr @x, align 4, !dbg !75, !tbaa !2596 %inc.i = add nsw i32 %0, 1, !dbg !7597 store volatile i32 %inc.i, ptr @x, align 4, !dbg !75, !tbaa !2598 br label %if.end.i, !dbg !7699 100if.end.i: ; preds = %if.then.i, %if.else101 call void @llvm.pseudoprobe(i64 7546896869197086323, i64 3, i32 0, i64 -1), !dbg !77102 %1 = load volatile i32, ptr @x, align 4, !dbg !77, !tbaa !25103 %add.i = add nsw i32 %1, 2, !dbg !77104 store volatile i32 %add.i, ptr @x, align 4, !dbg !77, !tbaa !25105 %2 = and i32 %i.06, 1, !dbg !78106 %tobool2.not.i.not = icmp eq i32 %2, 0, !dbg !78107 br i1 %tobool2.not.i.not, label %baz.exit, label %if.else.i, !dbg !79108 109if.else.i: ; preds = %if.end.i110 call void @llvm.pseudoprobe(i64 7546896869197086323, i64 5, i32 0, i64 -1), !dbg !80111 %rem5.i5 = urem i32 %inc7, 3, !dbg !81112 %tobool6.not.i = icmp eq i32 %rem5.i5, 0, !dbg !81113 %spec.select.i = select i1 %tobool6.not.i, i32 -1, i32 2, !dbg !82114 br label %baz.exit, !dbg !82115 116baz.exit: ; preds = %if.end.i, %if.else.i117 %.sink14.i = phi i32 [ 1, %if.end.i ], [ %spec.select.i, %if.else.i ]118 %3 = load volatile i32, ptr @x, align 4, !dbg !83, !tbaa !25119 %add8.i = add nsw i32 %3, %.sink14.i, !dbg !83120 store volatile i32 %add8.i, ptr @x, align 4, !dbg !83, !tbaa !25121 call void @llvm.pseudoprobe(i64 7546896869197086323, i64 9, i32 0, i64 -1), !dbg !84122 br label %if.end123 124if.end: ; preds = %baz.exit, %if.then125 call void @llvm.pseudoprobe(i64 -2624081020897602054, i64 8, i32 0, i64 -1), !dbg !58126 #dbg_value(i32 %inc7, !54, !DIExpression(), !56)127 call void @llvm.pseudoprobe(i64 -2624081020897602054, i64 2, i32 0, i64 -1), !dbg !57128 %inc = add nuw nsw i32 %inc7, 1, !dbg !57129 #dbg_value(i32 %inc, !54, !DIExpression(), !56)130 %exitcond.not = icmp eq i32 %inc, 160000001, !dbg !85131 br i1 %exitcond.not, label %while.end, label %while.body, !dbg !58, !llvm.loop !86132 133while.end: ; preds = %if.end134 call void @llvm.pseudoprobe(i64 -2624081020897602054, i64 9, i32 0, i64 -1), !dbg !89135 ret i32 0, !dbg !89136}137 138; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(inaccessiblemem: readwrite)139declare void @llvm.pseudoprobe(i64, i64, i32, i64) #3140 141attributes #0 = { nofree noinline norecurse nounwind memory(readwrite, argmem: none) uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }142attributes #1 = { nofree norecurse nounwind memory(readwrite, argmem: none) uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }143attributes #2 = { nofree norecurse nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" "use-sample-profile"}144attributes #3 = { mustprogress nocallback nofree nosync nounwind willreturn memory(inaccessiblemem: readwrite) }145 146!llvm.dbg.cu = !{!2}147!llvm.module.flags = !{!7, !8, !9, !10, !11, !12, !13}148!llvm.ident = !{!14}149!llvm.pseudo_probe_desc = !{!15, !16, !17}150 151!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())152!1 = distinct !DIGlobalVariable(name: "x", scope: !2, file: !3, line: 1, type: !5, isLocal: false, isDefinition: true)153!2 = distinct !DICompileUnit(language: DW_LANG_C11, file: !3, producer: "clang version 20.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, globals: !4, splitDebugInlining: false, nameTableKind: None)154!3 = !DIFile(filename: "test.c", directory: "/home", checksumkind: CSK_MD5, checksum: "b67c15e928f76c51702a59639dbebb4c")155!4 = !{!0}156!5 = !DIDerivedType(tag: DW_TAG_volatile_type, baseType: !6)157!6 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)158!7 = !{i32 7, !"Dwarf Version", i32 5}159!8 = !{i32 2, !"Debug Info Version", i32 3}160!9 = !{i32 1, !"wchar_size", i32 4}161!10 = !{i32 8, !"PIC Level", i32 2}162!11 = !{i32 7, !"PIE Level", i32 2}163!12 = !{i32 7, !"uwtable", i32 2}164!13 = !{i32 7, !"debug-info-assignment-tracking", i1 true}165!14 = !{!"clang version 20.0.0"}166!15 = !{i64 -2012135647395072713, i64 4294967295, !"bar"}167!16 = !{i64 7546896869197086323, i64 191430930410, !"baz"}168!17 = !{i64 -2624081020897602054, i64 563091374530180, !"main"}169!18 = distinct !DISubprogram(name: "bar", scope: !3, file: !3, line: 3, type: !19, scopeLine: 3, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !21)170!19 = !DISubroutineType(types: !20)171!20 = !{null, !6}172!21 = !{!22}173!22 = !DILocalVariable(name: "i", arg: 1, scope: !18, file: !3, line: 3, type: !6)174!23 = !DILocation(line: 0, scope: !18)175!24 = !DILocation(line: 4, column: 5, scope: !18)176!25 = !{!26, !26, i64 0}177!26 = !{!"int", !27, i64 0}178!27 = !{!"omnipotent char", !28, i64 0}179!28 = !{!"Simple C/C++ TBAA"}180!29 = !DILocation(line: 8, column: 1, scope: !18)181!30 = distinct !DISubprogram(name: "baz", scope: !3, file: !3, line: 10, type: !19, scopeLine: 10, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !31)182!31 = !{!32}183!32 = !DILocalVariable(name: "i", arg: 1, scope: !30, file: !3, line: 10, type: !6)184!33 = !DILocation(line: 0, scope: !30)185!34 = !DILocation(line: 11, column: 6, scope: !35)186!35 = distinct !DILexicalBlock(scope: !30, file: !3, line: 11, column: 6)187!36 = !DILocation(line: 11, column: 7, scope: !35)188!37 = !DILocation(line: 11, column: 6, scope: !30)189!38 = !DILocation(line: 12, column: 6, scope: !35)190!39 = !DILocation(line: 12, column: 5, scope: !35)191!40 = !DILocation(line: 14, column: 5, scope: !30)192!41 = !DILocation(line: 15, column: 9, scope: !42)193!42 = distinct !DILexicalBlock(scope: !30, file: !3, line: 15, column: 7)194!43 = !DILocation(line: 15, column: 7, scope: !30)195!44 = !DILocation(line: 17, column: 12, scope: !45)196!45 = distinct !DILexicalBlock(scope: !42, file: !3, line: 17, column: 12)197!46 = !DILocation(line: 17, column: 14, scope: !45)198!47 = !DILocation(line: 17, column: 12, scope: !42)199!48 = !DILocation(line: 0, scope: !42)200!49 = !DILocation(line: 21, column: 1, scope: !30)201!50 = distinct !DISubprogram(name: "main", scope: !3, file: !3, line: 23, type: !51, scopeLine: 23, flags: DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !53)202!51 = !DISubroutineType(types: !52)203!52 = !{!6}204!53 = !{!54}205!54 = !DILocalVariable(name: "i", scope: !50, file: !3, line: 24, type: !6)206!55 = !DILocation(line: 24, column: 7, scope: !50)207!56 = !DILocation(line: 0, scope: !50)208!57 = !DILocation(line: 25, column: 11, scope: !50)209!58 = !DILocation(line: 25, column: 3, scope: !50)210!59 = !DILocation(line: 26, column: 8, scope: !60)211!60 = distinct !DILexicalBlock(scope: !61, file: !3, line: 26, column: 8)212!61 = distinct !DILexicalBlock(scope: !50, file: !3, line: 25, column: 30)213!62 = !DILocation(line: 26, column: 10, scope: !60)214!63 = !DILocation(line: 26, column: 8, scope: !61)215!64 = !DILocation(line: 27, column: 10, scope: !60)216!65 = !DILocation(line: 27, column: 6, scope: !66)217!66 = !DILexicalBlockFile(scope: !60, file: !3, discriminator: 455082031)218!67 = !DILocation(line: 27, column: 6, scope: !60)219!68 = !DILocation(line: 29, column: 10, scope: !60)220!69 = !DILocation(line: 0, scope: !30, inlinedAt: !70)221!70 = distinct !DILocation(line: 29, column: 6, scope: !71)222!71 = !DILexicalBlockFile(scope: !60, file: !3, discriminator: 455082047)223!72 = !DILocation(line: 11, column: 6, scope: !35, inlinedAt: !70)224!73 = !DILocation(line: 11, column: 7, scope: !35, inlinedAt: !70)225!74 = !DILocation(line: 11, column: 6, scope: !30, inlinedAt: !70)226!75 = !DILocation(line: 12, column: 6, scope: !35, inlinedAt: !70)227!76 = !DILocation(line: 12, column: 5, scope: !35, inlinedAt: !70)228!77 = !DILocation(line: 14, column: 5, scope: !30, inlinedAt: !70)229!78 = !DILocation(line: 15, column: 9, scope: !42, inlinedAt: !70)230!79 = !DILocation(line: 15, column: 7, scope: !30, inlinedAt: !70)231!80 = !DILocation(line: 17, column: 12, scope: !45, inlinedAt: !70)232!81 = !DILocation(line: 17, column: 14, scope: !45, inlinedAt: !70)233!82 = !DILocation(line: 17, column: 12, scope: !42, inlinedAt: !70)234!83 = !DILocation(line: 0, scope: !42, inlinedAt: !70)235!84 = !DILocation(line: 21, column: 1, scope: !30, inlinedAt: !70)236!85 = !DILocation(line: 25, column: 14, scope: !50)237!86 = distinct !{!86, !58, !87, !88}238!87 = !DILocation(line: 30, column: 3, scope: !50)239!88 = !{!"llvm.loop.mustprogress"}240!89 = !DILocation(line: 31, column: 3, scope: !50)241