242 lines
14 KiB
LLVM
242 lines
14 KiB
LLVM
; REQUIRES: x86_64-linux
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; RUN: opt < %s -passes=sample-profile -sample-profile-file=%S/Inputs/pseudo-probe-profile-mismatch.prof -report-profile-staleness -persist-profile-staleness -S 2>%t -o %t.ll
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; RUN: FileCheck %s --input-file %t
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; RUN: FileCheck %s --input-file %t.ll -check-prefix=CHECK-MD
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; RUN: llc < %t.ll -filetype=obj -o %t.obj
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; RUN: llvm-objdump --section-headers %t.obj | FileCheck %s --check-prefix=CHECK-OBJ
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; CHECK: (1/3) of functions' profile are invalid and (10/50) of samples are discarded due to function hash mismatch.
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; CHECK: (2/3) of callsites' profile are invalid and (20/30) of samples are discarded due to callsite location mismatch.
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; CHECK-MD: ![[#]] = !{!"NumMismatchedFuncHash", i64 1, !"TotalProfiledFunc", i64 3, !"MismatchedFuncHashSamples", i64 10, !"TotalFuncHashSamples", i64 50, !"MismatchedCallsiteSamples", i64 20, !"TotalCallsiteSamples", i64 30}
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; CHECK-OBJ: .llvm_stats
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target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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@x = dso_local global i32 0, align 4, !dbg !0
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; Function Attrs: nounwind uwtable
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define dso_local i32 @foo(i32 noundef %x) #0 !dbg !16 {
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entry:
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%y = alloca i32, align 4
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call void @llvm.dbg.value(metadata i32 %x, metadata !20, metadata !DIExpression()), !dbg !22
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call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %y), !dbg !23
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call void @llvm.dbg.declare(metadata ptr %y, metadata !21, metadata !DIExpression()), !dbg !24
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call void @llvm.pseudoprobe(i64 6699318081062747564, i64 1, i32 0, i64 -1), !dbg !25
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%add = add nsw i32 %x, 1, !dbg !26
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store volatile i32 %add, ptr %y, align 4, !dbg !24, !tbaa !27
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%y.0. = load volatile i32, ptr %y, align 4, !dbg !31, !tbaa !27
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%add1 = add nsw i32 %y.0., 1, !dbg !32
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call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %y), !dbg !33
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ret i32 %add1, !dbg !34
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}
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; Function Attrs: mustprogress nocallback nofree nosync nounwind readnone speculatable willreturn
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declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
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; Function Attrs: argmemonly mustprogress nocallback nofree nosync nounwind willreturn
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declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2
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; Function Attrs: argmemonly mustprogress nocallback nofree nosync nounwind willreturn
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declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2
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; Function Attrs: noinline nounwind uwtable
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define dso_local i32 @bar(i32 noundef %x) #3 !dbg !35 {
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entry:
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call void @llvm.dbg.value(metadata i32 %x, metadata !37, metadata !DIExpression()), !dbg !38
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call void @llvm.pseudoprobe(i64 -2012135647395072713, i64 1, i32 0, i64 -1), !dbg !39
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%add = add nsw i32 %x, 2, !dbg !40
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ret i32 %add, !dbg !41
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}
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; Function Attrs: noinline nounwind uwtable
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define dso_local i32 @matched(i32 noundef %x) #3 !dbg !42 {
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entry:
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call void @llvm.dbg.value(metadata i32 %x, metadata !44, metadata !DIExpression()), !dbg !45
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call void @llvm.pseudoprobe(i64 -5844448289301669773, i64 1, i32 0, i64 -1), !dbg !46
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%add = add nsw i32 %x, 3, !dbg !47
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ret i32 %add, !dbg !48
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}
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; Function Attrs: nounwind uwtable
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define dso_local i32 @main() #0 !dbg !49 {
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entry:
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call void @llvm.pseudoprobe(i64 -2624081020897602054, i64 1, i32 0, i64 -1), !dbg !59
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call void @llvm.dbg.value(metadata i32 0, metadata !53, metadata !DIExpression()), !dbg !60
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br label %for.cond, !dbg !61
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for.cond: ; preds = %for.cond.cleanup3, %entry
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%i.0 = phi i32 [ 0, %entry ], [ %inc8, %for.cond.cleanup3 ], !dbg !60
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call void @llvm.dbg.value(metadata i32 %i.0, metadata !53, metadata !DIExpression()), !dbg !60
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call void @llvm.pseudoprobe(i64 -2624081020897602054, i64 2, i32 0, i64 -1), !dbg !62
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%cmp = icmp ult i32 %i.0, 1000, !dbg !64
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br i1 %cmp, label %for.body, label %for.cond.cleanup, !dbg !65
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for.cond.cleanup: ; preds = %for.cond
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call void @llvm.pseudoprobe(i64 -2624081020897602054, i64 3, i32 0, i64 -1), !dbg !67
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call void @llvm.pseudoprobe(i64 -2624081020897602054, i64 11, i32 0, i64 -1), !dbg !68
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ret i32 0, !dbg !68
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for.body: ; preds = %for.cond
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call void @llvm.pseudoprobe(i64 -2624081020897602054, i64 4, i32 0, i64 -1), !dbg !69
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call void @llvm.dbg.value(metadata i32 0, metadata !55, metadata !DIExpression()), !dbg !70
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br label %for.cond1, !dbg !71
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for.cond1: ; preds = %for.body4, %for.body
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%a.0 = phi i32 [ 0, %for.body ], [ %inc, %for.body4 ], !dbg !70
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call void @llvm.dbg.value(metadata i32 %a.0, metadata !55, metadata !DIExpression()), !dbg !70
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call void @llvm.pseudoprobe(i64 -2624081020897602054, i64 5, i32 0, i64 -1), !dbg !72
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%cmp2 = icmp ult i32 %a.0, 10000, !dbg !75
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br i1 %cmp2, label %for.body4, label %for.cond.cleanup3, !dbg !76
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for.cond.cleanup3: ; preds = %for.cond1
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call void @llvm.pseudoprobe(i64 -2624081020897602054, i64 6, i32 0, i64 -1), !dbg !67
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call void @llvm.pseudoprobe(i64 -2624081020897602054, i64 9, i32 0, i64 -1), !dbg !78
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call void @llvm.pseudoprobe(i64 -2624081020897602054, i64 10, i32 0, i64 -1), !dbg !79
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%inc8 = add nuw nsw i32 %i.0, 1, !dbg !79
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call void @llvm.dbg.value(metadata i32 %inc8, metadata !53, metadata !DIExpression()), !dbg !60
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br label %for.cond, !dbg !81, !llvm.loop !82
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for.body4: ; preds = %for.cond1
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call void @llvm.pseudoprobe(i64 -2624081020897602054, i64 7, i32 0, i64 -1), !dbg !86
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%0 = load volatile i32, ptr @x, align 4, !dbg !86, !tbaa !27
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%call = call i32 @matched(i32 noundef %0), !dbg !88
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store volatile i32 %call, ptr @x, align 4, !dbg !90, !tbaa !27
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%1 = load volatile i32, ptr @x, align 4, !dbg !91, !tbaa !27
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%call5 = call i32 @foo(i32 noundef %1), !dbg !92
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store volatile i32 %call5, ptr @x, align 4, !dbg !94, !tbaa !27
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%2 = load volatile i32, ptr @x, align 4, !dbg !95, !tbaa !27
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%call6 = call i32 @bar(i32 noundef %2), !dbg !96
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store volatile i32 %call6, ptr @x, align 4, !dbg !98, !tbaa !27
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call void @llvm.pseudoprobe(i64 -2624081020897602054, i64 8, i32 0, i64 -1), !dbg !99
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%inc = add nuw nsw i32 %a.0, 1, !dbg !99
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call void @llvm.dbg.value(metadata i32 %inc, metadata !55, metadata !DIExpression()), !dbg !70
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br label %for.cond1, !dbg !101, !llvm.loop !102
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}
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; Function Attrs: inaccessiblememonly mustprogress nocallback nofree nosync nounwind willreturn
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declare void @llvm.pseudoprobe(i64, i64, i32, i64) #4
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; Function Attrs: nocallback nofree nosync nounwind readnone speculatable willreturn
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declare void @llvm.dbg.value(metadata, metadata, metadata) #5
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attributes #0 = { nounwind uwtable "frame-pointer"="none" "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" "use-sample-profile" }
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attributes #1 = { mustprogress nocallback nofree nosync nounwind readnone speculatable willreturn }
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attributes #2 = { argmemonly mustprogress nocallback nofree nosync nounwind willreturn }
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attributes #3 = { noinline nounwind uwtable "frame-pointer"="none" "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" "use-sample-profile" }
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attributes #4 = { inaccessiblememonly mustprogress nocallback nofree nosync nounwind willreturn }
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attributes #5 = { nocallback nofree nosync nounwind readnone speculatable willreturn }
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!llvm.dbg.cu = !{!2}
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!llvm.module.flags = !{!7, !8, !9, !10}
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!llvm.ident = !{!11}
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!llvm.pseudo_probe_desc = !{!12, !13, !14, !15}
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!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
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!1 = distinct !DIGlobalVariable(name: "x", scope: !2, file: !3, line: 1, type: !5, isLocal: false, isDefinition: true)
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!2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, globals: !4, splitDebugInlining: false, debugInfoForProfiling: true, nameTableKind: None)
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!3 = !DIFile(filename: "test.c", directory: "")
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!4 = !{!0}
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!5 = !DIDerivedType(tag: DW_TAG_volatile_type, baseType: !6)
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!6 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!7 = !{i32 7, !"Dwarf Version", i32 5}
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!8 = !{i32 2, !"Debug Info Version", i32 3}
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!9 = !{i32 1, !"wchar_size", i32 4}
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!10 = !{i32 7, !"uwtable", i32 2}
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!11 = !{!""}
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!12 = !{i64 6699318081062747564, i64 4294967295, !"foo"}
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!13 = !{i64 -2012135647395072713, i64 4294967295, !"bar"}
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!14 = !{i64 -5844448289301669773, i64 4294967295, !"matched"}
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!15 = !{i64 -2624081020897602054, i64 844635331715433, !"main"}
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!16 = distinct !DISubprogram(name: "foo", scope: !3, file: !3, line: 2, type: !17, scopeLine: 2, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !19)
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!17 = !DISubroutineType(types: !18)
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!18 = !{!6, !6}
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!19 = !{!20, !21}
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!20 = !DILocalVariable(name: "x", arg: 1, scope: !16, file: !3, line: 2, type: !6)
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!21 = !DILocalVariable(name: "y", scope: !16, file: !3, line: 3, type: !5)
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!22 = !DILocation(line: 0, scope: !16)
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!23 = !DILocation(line: 3, column: 3, scope: !16)
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!24 = !DILocation(line: 3, column: 16, scope: !16)
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!25 = !DILocation(line: 3, column: 20, scope: !16)
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!26 = !DILocation(line: 3, column: 22, scope: !16)
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!27 = !{!28, !28, i64 0}
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!28 = !{!"int", !29, i64 0}
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!29 = !{!"omnipotent char", !30, i64 0}
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!30 = !{!"Simple C/C++ TBAA"}
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!31 = !DILocation(line: 4, column: 10, scope: !16)
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!32 = !DILocation(line: 4, column: 12, scope: !16)
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!33 = !DILocation(line: 5, column: 1, scope: !16)
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!34 = !DILocation(line: 4, column: 3, scope: !16)
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!35 = distinct !DISubprogram(name: "bar", scope: !3, file: !3, line: 7, type: !17, scopeLine: 7, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !36)
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!36 = !{!37}
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!37 = !DILocalVariable(name: "x", arg: 1, scope: !35, file: !3, line: 7, type: !6)
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!38 = !DILocation(line: 0, scope: !35)
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!39 = !DILocation(line: 8, column: 10, scope: !35)
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!40 = !DILocation(line: 8, column: 12, scope: !35)
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!41 = !DILocation(line: 8, column: 3, scope: !35)
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!42 = distinct !DISubprogram(name: "matched", scope: !3, file: !3, line: 11, type: !17, scopeLine: 11, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !43)
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!43 = !{!44}
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!44 = !DILocalVariable(name: "x", arg: 1, scope: !42, file: !3, line: 11, type: !6)
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!45 = !DILocation(line: 0, scope: !42)
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!46 = !DILocation(line: 12, column: 10, scope: !42)
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!47 = !DILocation(line: 12, column: 12, scope: !42)
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!48 = !DILocation(line: 12, column: 3, scope: !42)
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!49 = distinct !DISubprogram(name: "main", scope: !3, file: !3, line: 15, type: !50, scopeLine: 15, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !52)
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!50 = !DISubroutineType(types: !51)
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!51 = !{!6}
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!52 = !{!53, !55}
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!53 = !DILocalVariable(name: "i", scope: !54, file: !3, line: 16, type: !6)
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!54 = distinct !DILexicalBlock(scope: !49, file: !3, line: 16, column: 3)
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!55 = !DILocalVariable(name: "a", scope: !56, file: !3, line: 17, type: !6)
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!56 = distinct !DILexicalBlock(scope: !57, file: !3, line: 17, column: 5)
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!57 = distinct !DILexicalBlock(scope: !58, file: !3, line: 16, column: 34)
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!58 = distinct !DILexicalBlock(scope: !54, file: !3, line: 16, column: 3)
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!59 = !DILocation(line: 16, column: 12, scope: !54)
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!60 = !DILocation(line: 0, scope: !54)
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!61 = !DILocation(line: 16, column: 8, scope: !54)
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!62 = !DILocation(line: 16, column: 19, scope: !63)
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!63 = !DILexicalBlockFile(scope: !58, file: !3, discriminator: 2)
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!64 = !DILocation(line: 16, column: 21, scope: !63)
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!65 = !DILocation(line: 16, column: 3, scope: !66)
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!66 = !DILexicalBlockFile(scope: !54, file: !3, discriminator: 2)
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!67 = !DILocation(line: 0, scope: !49)
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!68 = !DILocation(line: 23, column: 1, scope: !49)
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!69 = !DILocation(line: 17, column: 14, scope: !56)
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!70 = !DILocation(line: 0, scope: !56)
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!71 = !DILocation(line: 17, column: 10, scope: !56)
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!72 = !DILocation(line: 17, column: 21, scope: !73)
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!73 = !DILexicalBlockFile(scope: !74, file: !3, discriminator: 2)
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!74 = distinct !DILexicalBlock(scope: !56, file: !3, line: 17, column: 5)
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!75 = !DILocation(line: 17, column: 23, scope: !73)
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!76 = !DILocation(line: 17, column: 5, scope: !77)
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!77 = !DILexicalBlockFile(scope: !56, file: !3, discriminator: 2)
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!78 = !DILocation(line: 22, column: 3, scope: !57)
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!79 = !DILocation(line: 16, column: 30, scope: !80)
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!80 = !DILexicalBlockFile(scope: !58, file: !3, discriminator: 4)
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!81 = !DILocation(line: 16, column: 3, scope: !80)
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!82 = distinct !{!82, !83, !84, !85}
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!83 = !DILocation(line: 16, column: 3, scope: !54)
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!84 = !DILocation(line: 22, column: 3, scope: !54)
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!85 = !{!"llvm.loop.mustprogress"}
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!86 = !DILocation(line: 18, column: 19, scope: !87)
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!87 = distinct !DILexicalBlock(scope: !74, file: !3, line: 17, column: 37)
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!88 = !DILocation(line: 18, column: 11, scope: !89)
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!89 = !DILexicalBlockFile(scope: !87, file: !3, discriminator: 186646631)
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!90 = !DILocation(line: 18, column: 9, scope: !87)
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!91 = !DILocation(line: 19, column: 15, scope: !87)
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!92 = !DILocation(line: 19, column: 11, scope: !93)
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!93 = !DILexicalBlockFile(scope: !87, file: !3, discriminator: 186646639)
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!94 = !DILocation(line: 19, column: 9, scope: !87)
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!95 = !DILocation(line: 20, column: 15, scope: !87)
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!96 = !DILocation(line: 20, column: 11, scope: !97)
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!97 = !DILexicalBlockFile(scope: !87, file: !3, discriminator: 186646647)
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!98 = !DILocation(line: 20, column: 9, scope: !87)
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!99 = !DILocation(line: 17, column: 33, scope: !100)
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!100 = !DILexicalBlockFile(scope: !74, file: !3, discriminator: 4)
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!101 = !DILocation(line: 17, column: 5, scope: !100)
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!102 = distinct !{!102, !103, !104, !85}
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!103 = !DILocation(line: 17, column: 5, scope: !56)
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!104 = !DILocation(line: 21, column: 5, scope: !56)
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