252 lines
14 KiB
LLVM
252 lines
14 KiB
LLVM
; REQUIRES: x86_64-linux
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; REQUIRES: asserts
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; RUN: opt < %s -passes=sample-profile -sample-profile-file=%S/Inputs/pseudo-probe-stale-profile-matching-lto.prof --salvage-stale-profile -S --debug-only=sample-profile,sample-profile-impl 2>&1 | FileCheck %s
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; CHECK: Run stale profile matching for main
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; CHECK: Location is matched from 1 to 1
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; CHECK: Location is matched from 2 to 2
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; CHECK: Location is matched from 4 to 4
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; CHECK: Location is matched from 6 to 6
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; CHECK: Location is matched from 7 to 7
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; CHECK: Location is matched from 8 to 8
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; CHECK: Location is matched from 10 to 10
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; CHECK: Callsite with callee:foo is matched from 12 to 6
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; CHECK: Location is rematched backwards from 7 to 1
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; CHECK: Location is rematched backwards from 8 to 2
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; CHECK: Location is rematched backwards from 10 to 4
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; CHECK: Callsite with callee:bar is matched from 13 to 7
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; CHECK: Callsite with callee:foo is matched from 14 to 8
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; CHECK: Callsite with callee:bar is matched from 15 to 9
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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 = internal global i32 1, align 4, !dbg !0
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; Function Attrs: nounwind uwtable
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define dso_local i32 @main() local_unnamed_addr #0 !dbg !49 !prof !55 {
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call void @llvm.pseudoprobe(i64 -2624081020897602054, i64 1, i32 0, i64 -1), !dbg !56
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call void @llvm.dbg.value(metadata i32 0, metadata !53, metadata !DIExpression()), !dbg !57
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call void @llvm.pseudoprobe(i64 -2624081020897602054, i64 2, i32 0, i64 6148914874488455168), !dbg !58
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br label %1, !dbg !61
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1: ; preds = %17, %0
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%2 = phi i32 [ 0, %0 ], [ %28, %17 ]
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call void @llvm.dbg.value(metadata i32 %2, metadata !53, metadata !DIExpression()), !dbg !57
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call void @llvm.pseudoprobe(i64 -2624081020897602054, i64 4, i32 0, i64 -1), !dbg !63
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%3 = load volatile i32, ptr @x, align 4, !dbg !65, !tbaa !66
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call void @llvm.dbg.value(metadata i32 %2, metadata !70, metadata !DIExpression()), !dbg !76
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call void @llvm.dbg.value(metadata i32 %3, metadata !75, metadata !DIExpression()), !dbg !76
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call void @llvm.pseudoprobe(i64 6699318081062747564, i64 1, i32 0, i64 -1), !dbg !79
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%4 = urem i32 %2, 10, !dbg !81
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%5 = icmp eq i32 %4, 0, !dbg !81
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%6 = zext i1 %5 to i32, !dbg !82
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%7 = add nsw i32 %3, %6, !dbg !82
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%8 = call i32 @bar(i32 noundef %7) #4, !dbg !83, !prof !84
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call void @llvm.pseudoprobe(i64 6699318081062747564, i64 4, i32 0, i64 -1), !dbg !85
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%9 = load volatile i32, ptr @x, align 4, !dbg !86, !tbaa !66
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%10 = add nsw i32 %9, %8, !dbg !86
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store volatile i32 %10, ptr @x, align 4, !dbg !86, !tbaa !66
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%11 = load volatile i32, ptr @x, align 4, !dbg !87, !tbaa !66
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%12 = call i32 @bar(i32 noundef %11) #4, !dbg !88, !prof !90
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%13 = load volatile i32, ptr @x, align 4, !dbg !91, !tbaa !66
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%14 = add nsw i32 %13, %12, !dbg !91
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store volatile i32 %14, ptr @x, align 4, !dbg !91, !tbaa !66
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%15 = load volatile i32, ptr @x, align 4, !dbg !92, !tbaa !66
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%16 = icmp slt i32 %15, 0, !dbg !94
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br i1 %16, label %30, label %17, !dbg !95, !prof !96
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17: ; preds = %1
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call void @llvm.pseudoprobe(i64 -2624081020897602054, i64 6, i32 0, i64 -1), !dbg !97
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%18 = load volatile i32, ptr @x, align 4, !dbg !98, !tbaa !66
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call void @llvm.dbg.value(metadata i32 %2, metadata !70, metadata !DIExpression()), !dbg !99
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call void @llvm.dbg.value(metadata i32 %18, metadata !75, metadata !DIExpression()), !dbg !99
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call void @llvm.pseudoprobe(i64 6699318081062747564, i64 1, i32 0, i64 -1), !dbg !102
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%19 = zext i1 %5 to i32, !dbg !103
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%20 = add nsw i32 %18, %19, !dbg !103
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%21 = call i32 @bar(i32 noundef %20) #4, !dbg !104, !prof !84
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call void @llvm.pseudoprobe(i64 6699318081062747564, i64 4, i32 0, i64 -1), !dbg !105
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%22 = load volatile i32, ptr @x, align 4, !dbg !106, !tbaa !66
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%23 = add nsw i32 %22, %21, !dbg !106
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store volatile i32 %23, ptr @x, align 4, !dbg !106, !tbaa !66
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%24 = load volatile i32, ptr @x, align 4, !dbg !107, !tbaa !66
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%25 = call i32 @bar(i32 noundef %24) #4, !dbg !108, !prof !90
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%26 = load volatile i32, ptr @x, align 4, !dbg !110, !tbaa !66
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%27 = add nsw i32 %26, %25, !dbg !110
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store volatile i32 %27, ptr @x, align 4, !dbg !110, !tbaa !66
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call void @llvm.pseudoprobe(i64 -2624081020897602054, i64 7, i32 0, i64 -1), !dbg !111
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%28 = add nuw nsw i32 %2, 1, !dbg !112
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call void @llvm.dbg.value(metadata i32 %28, metadata !53, metadata !DIExpression()), !dbg !57
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call void @llvm.pseudoprobe(i64 -2624081020897602054, i64 2, i32 0, i64 -6148914324732641280), !dbg !58
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%29 = icmp eq i32 %28, 1000000, !dbg !114
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br i1 %29, label %30, label %1, !dbg !61, !prof !116, !llvm.loop !117
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30: ; preds = %17, %1
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%31 = phi i32 [ 1, %1 ], [ 0, %17 ]
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call void @llvm.pseudoprobe(i64 -2624081020897602054, i64 8, i32 0, i64 -1), !dbg !121
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call void @llvm.pseudoprobe(i64 -2624081020897602054, i64 10, i32 0, i64 -1), !dbg !122
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ret i32 %31, !dbg !122
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}
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; Function Attrs: nocallback nofree nosync nounwind willreturn memory(inaccessiblemem: readwrite)
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declare void @llvm.pseudoprobe(i64, i64, i32, i64) #1
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; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
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declare void @llvm.dbg.value(metadata, metadata, metadata) #2
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; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(none) uwtable
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define available_externally dso_local i32 @bar(i32 noundef %0) local_unnamed_addr #3 !dbg !123 !prof !128 {
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call void @llvm.dbg.value(metadata i32 %0, metadata !127, metadata !DIExpression()), !dbg !129
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call void @llvm.pseudoprobe(i64 -2012135647395072713, i64 1, i32 0, i64 -1), !dbg !130
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%2 = add nsw i32 %0, 1, !dbg !131
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ret i32 %2, !dbg !132
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}
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attributes #0 = { nounwind uwtable "disable-tail-calls"="true" "frame-pointer"="all" "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" }
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attributes #1 = { nocallback nofree nosync nounwind willreturn memory(inaccessiblemem: readwrite) }
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attributes #2 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
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attributes #3 = { mustprogress nofree norecurse nosync nounwind willreturn memory(none) uwtable "disable-tail-calls"="true" "frame-pointer"="all" "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" }
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attributes #4 = { nounwind }
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!llvm.dbg.cu = !{!2, !7}
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!llvm.module.flags = !{!9, !10, !11, !12, !13, !14, !15, !16, !17}
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!llvm.ident = !{!46, !46}
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!llvm.pseudo_probe_desc = !{!47, !48}
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!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
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!1 = distinct !DIGlobalVariable(name: "x", scope: !2, file: !3, line: 2, type: !5, isLocal: false, isDefinition: true)
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!2 = distinct !DICompileUnit(language: DW_LANG_C11, file: !3, producer: "clang version 18.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, globals: !4, splitDebugInlining: false, debugInfoForProfiling: true, nameTableKind: None)
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!3 = !DIFile(filename: "file1.c", directory: "/home/", checksumkind: CSK_MD5, checksum: "03dfbda098b1285e8c9837f184747483")
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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 = distinct !DICompileUnit(language: DW_LANG_C11, file: !8, producer: "clang version 18.0.0 ", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, splitDebugInlining: false, debugInfoForProfiling: true, nameTableKind: None)
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!8 = !DIFile(filename: "file2.c", directory: "/home", checksumkind: CSK_MD5, checksum: "bd15f56a5a8604ec94485c3dbf9d0cdd")
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!9 = !{i32 7, !"Dwarf Version", i32 5}
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!10 = !{i32 2, !"Debug Info Version", i32 3}
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!11 = !{i32 1, !"wchar_size", i32 4}
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!12 = !{i32 8, !"PIC Level", i32 2}
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!13 = !{i32 7, !"PIE Level", i32 2}
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!14 = !{i32 7, !"uwtable", i32 2}
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!15 = !{i32 7, !"frame-pointer", i32 2}
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!16 = !{i32 1, !"EnableSplitLTOUnit", i32 0}
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!17 = !{i32 1, !"ProfileSummary", !18}
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!18 = !{!19, !20, !21, !22, !23, !24, !25, !26, !27, !28}
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!19 = !{!"ProfileFormat", !"SampleProfile"}
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!20 = !{!"TotalCount", i64 9258}
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!21 = !{!"MaxCount", i64 2401}
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!22 = !{!"MaxInternalCount", i64 0}
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!23 = !{!"MaxFunctionCount", i64 2401}
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!24 = !{!"NumCounts", i64 18}
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!25 = !{!"NumFunctions", i64 2}
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!26 = !{!"IsPartialProfile", i64 0}
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!27 = !{!"PartialProfileRatio", double 0.000000e+00}
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!28 = !{!"DetailedSummary", !29}
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!29 = !{!30, !31, !32, !33, !34, !35, !36, !37, !38, !39, !40, !41, !42, !43, !44, !45}
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!30 = !{i32 10000, i64 2401, i32 1}
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!31 = !{i32 100000, i64 2401, i32 1}
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!32 = !{i32 200000, i64 2401, i32 1}
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!33 = !{i32 300000, i64 636, i32 2}
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!34 = !{i32 400000, i64 618, i32 4}
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!35 = !{i32 500000, i64 614, i32 8}
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!36 = !{i32 600000, i64 614, i32 8}
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!37 = !{i32 700000, i64 614, i32 8}
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!38 = !{i32 800000, i64 589, i32 10}
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!39 = !{i32 900000, i64 554, i32 11}
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!40 = !{i32 950000, i64 526, i32 12}
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!41 = !{i32 990000, i64 59, i32 16}
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!42 = !{i32 999000, i64 59, i32 16}
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!43 = !{i32 999900, i64 59, i32 16}
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!44 = !{i32 999990, i64 59, i32 16}
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!45 = !{i32 999999, i64 59, i32 16}
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!46 = !{!"clang version 18.0.0"}
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!47 = !{i64 6699318081062747564, i64 563022570642068, !"foo"}
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!48 = !{i64 -2624081020897602054, i64 1126124211449298, !"main"}
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!49 = distinct !DISubprogram(name: "main", scope: !3, file: !3, line: 11, type: !50, scopeLine: 12, flags: 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}
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!53 = !DILocalVariable(name: "i", scope: !54, file: !3, line: 13, type: !6)
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!54 = distinct !DILexicalBlock(scope: !49, file: !3, line: 13, column: 3)
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!55 = !{!"function_entry_count", i64 608}
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!56 = !DILocation(line: 13, column: 11, scope: !54)
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!57 = !DILocation(line: 0, scope: !54)
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!58 = !DILocation(line: 13, column: 18, scope: !59)
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!59 = !DILexicalBlockFile(scope: !60, file: !3, discriminator: 0)
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!60 = distinct !DILexicalBlock(scope: !54, file: !3, line: 13, column: 3)
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!61 = !DILocation(line: 13, column: 3, scope: !62)
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!62 = !DILexicalBlockFile(scope: !54, file: !3, discriminator: 2)
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!63 = !DILocation(line: 14, column: 15, scope: !64)
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!64 = distinct !DILexicalBlock(scope: !60, file: !3, line: 13, column: 40)
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!65 = !DILocation(line: 14, column: 18, scope: !64)
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!66 = !{!67, !67, i64 0}
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!67 = !{!"int", !68, i64 0}
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!68 = !{!"omnipotent char", !69, i64 0}
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!69 = !{!"Simple C/C++ TBAA"}
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!70 = !DILocalVariable(name: "i", arg: 1, scope: !71, file: !3, line: 6, type: !6)
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!71 = distinct !DISubprogram(name: "foo", scope: !3, file: !3, line: 6, type: !72, scopeLine: 6, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !74)
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!72 = !DISubroutineType(types: !73)
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!73 = !{!6, !6, !6}
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!74 = !{!70, !75}
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!75 = !DILocalVariable(name: "p", arg: 2, scope: !71, file: !3, line: 6, type: !6)
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!76 = !DILocation(line: 0, scope: !71, inlinedAt: !77)
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!77 = distinct !DILocation(line: 14, column: 11, scope: !78)
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!78 = !DILexicalBlockFile(scope: !64, file: !3, discriminator: 186646631)
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!79 = !DILocation(line: 7, column: 6, scope: !80, inlinedAt: !77)
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!80 = distinct !DILexicalBlock(scope: !71, file: !3, line: 7, column: 6)
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!81 = !DILocation(line: 7, column: 8, scope: !80, inlinedAt: !77)
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!82 = !DILocation(line: 7, column: 6, scope: !71, inlinedAt: !77)
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!83 = !DILocation(line: 0, scope: !80, inlinedAt: !77)
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!84 = !{!"branch_weights", i64 614}
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!85 = !DILocation(line: 9, column: 1, scope: !71, inlinedAt: !77)
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!86 = !DILocation(line: 14, column: 8, scope: !64)
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!87 = !DILocation(line: 15, column: 15, scope: !64)
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!88 = !DILocation(line: 15, column: 11, scope: !89)
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!89 = !DILexicalBlockFile(scope: !64, file: !3, discriminator: 186646639)
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!90 = !{!"branch_weights", i32 614}
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!91 = !DILocation(line: 15, column: 8, scope: !64)
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!92 = !DILocation(line: 16, column: 9, scope: !93)
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!93 = distinct !DILexicalBlock(scope: !64, file: !3, line: 16, column: 9)
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!94 = !DILocation(line: 16, column: 11, scope: !93)
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!95 = !DILocation(line: 16, column: 9, scope: !64)
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!96 = !{!"branch_weights", i32 0, i32 614}
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!97 = !DILocation(line: 18, column: 15, scope: !64)
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!98 = !DILocation(line: 18, column: 18, scope: !64)
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!99 = !DILocation(line: 0, scope: !71, inlinedAt: !100)
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!100 = distinct !DILocation(line: 18, column: 11, scope: !101)
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!101 = !DILexicalBlockFile(scope: !64, file: !3, discriminator: 186646647)
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!102 = !DILocation(line: 7, column: 6, scope: !80, inlinedAt: !100)
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!103 = !DILocation(line: 7, column: 6, scope: !71, inlinedAt: !100)
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!104 = !DILocation(line: 0, scope: !80, inlinedAt: !100)
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!105 = !DILocation(line: 9, column: 1, scope: !71, inlinedAt: !100)
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!106 = !DILocation(line: 18, column: 8, scope: !64)
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!107 = !DILocation(line: 19, column: 15, scope: !64)
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!108 = !DILocation(line: 19, column: 11, scope: !109)
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!109 = !DILexicalBlockFile(scope: !64, file: !3, discriminator: 186646655)
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!110 = !DILocation(line: 19, column: 8, scope: !64)
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!111 = !DILocation(line: 13, column: 36, scope: !59)
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!112 = !DILocation(line: 13, column: 36, scope: !113)
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!113 = !DILexicalBlockFile(scope: !60, file: !3, discriminator: 6)
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!114 = !DILocation(line: 13, column: 20, scope: !115)
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!115 = !DILexicalBlockFile(scope: !60, file: !3, discriminator: 2)
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!116 = !{!"branch_weights", i32 608, i32 614}
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!117 = distinct !{!117, !118, !119, !120}
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!118 = !DILocation(line: 13, column: 3, scope: !54)
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!119 = !DILocation(line: 20, column: 3, scope: !54)
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!120 = !{!"llvm.loop.mustprogress"}
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!121 = !DILocation(line: 0, scope: !49)
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!122 = !DILocation(line: 22, column: 1, scope: !49)
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!123 = distinct !DISubprogram(name: "bar", scope: !8, file: !8, line: 1, type: !124, scopeLine: 1, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !7, retainedNodes: !126)
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!124 = !DISubroutineType(types: !125)
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!125 = !{!6, !6}
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!126 = !{!127}
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!127 = !DILocalVariable(name: "x", arg: 1, scope: !123, file: !8, line: 1, type: !6)
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!128 = !{!"function_entry_count", i64 2401}
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!129 = !DILocation(line: 0, scope: !123)
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!130 = !DILocation(line: 5, column: 10, scope: !123)
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!131 = !DILocation(line: 5, column: 12, scope: !123)
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!132 = !DILocation(line: 5, column: 3, scope: !123)
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