1e7d5871ee
Fix one corner case when `CallStackTrie` has a single chain to leaf with multi alloc type. This will cause stackIds in function summary is empty.
96 lines
4.7 KiB
LLVM
96 lines
4.7 KiB
LLVM
;; Tests memprof when contains loop unroll.
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;; Avoid failures on big-endian systems that can't read the profile properly
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; REQUIRES: x86_64-linux
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;; TODO: Use text profile inputs once that is available for memprof.
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;; # To update the Inputs below, run Inputs/update_memprof_inputs.sh.
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;; # To generate below LLVM IR for use in matching.
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;; $ clang++ -gmlt -fdebug-info-for-profiling -S %S/Inputs/memprof_loop_unroll_b.cc -emit-llvm
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; RUN: llvm-profdata merge %S/Inputs/memprof_loop_unroll.memprofraw --profiled-binary %S/Inputs/memprof_loop_unroll.exe -o %t.memprofdata
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; RUN: opt < %s -passes='memprof-use<profile-filename=%t.memprofdata>' -S | FileCheck %s
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; CHECK: call {{.*}} @_Znam{{.*}} #[[ATTR:[0-9]+]]
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; CHECK: attributes #[[ATTR]] = { builtin allocsize(0) "memprof"="notcold" }
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; CHECK-NOT: stackIds: ()
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; ModuleID = 'memprof_loop_unroll_b.cc'
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source_filename = "memprof_loop_unroll_b.cc"
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target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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@a = external global [2 x ptr], align 16
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; Function Attrs: mustprogress noinline optnone uwtable
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define dso_local void @_Z3foov() #0 !dbg !10 {
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entry:
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%i = alloca i32, align 4
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store i32 0, ptr %i, align 4, !dbg !13
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br label %for.cond, !dbg !14
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for.cond: ; preds = %for.inc, %entry
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%0 = load i32, ptr %i, align 4, !dbg !15
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%cmp = icmp slt i32 %0, 2, !dbg !17
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br i1 %cmp, label %for.body, label %for.end, !dbg !18
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for.body: ; preds = %for.cond
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%call = call noalias noundef nonnull ptr @_Znam(i64 noundef 4) #2, !dbg !19
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%1 = load i32, ptr %i, align 4, !dbg !20
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%idxprom = sext i32 %1 to i64, !dbg !21
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%arrayidx = getelementptr inbounds [2 x ptr], ptr @a, i64 0, i64 %idxprom, !dbg !21
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store ptr %call, ptr %arrayidx, align 8, !dbg !22
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br label %for.inc, !dbg !23
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for.inc: ; preds = %for.body
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%2 = load i32, ptr %i, align 4, !dbg !24
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%inc = add nsw i32 %2, 1, !dbg !24
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store i32 %inc, ptr %i, align 4, !dbg !24
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br label %for.cond, !dbg !26, !llvm.loop !27
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for.end: ; preds = %for.cond
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ret void, !dbg !30
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}
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; Function Attrs: nobuiltin allocsize(0)
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declare noundef nonnull ptr @_Znam(i64 noundef) #1
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attributes #0 = { mustprogress noinline optnone uwtable "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" }
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attributes #1 = { nobuiltin allocsize(0) "frame-pointer"="all" "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" }
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attributes #2 = { builtin allocsize(0) }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!2, !3, !4, !5, !6, !7, !8}
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!llvm.ident = !{!9}
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !1, producer: "clang version 18.0.0", isOptimized: false, runtimeVersion: 0, emissionKind: LineTablesOnly, splitDebugInlining: false, debugInfoForProfiling: true, nameTableKind: None)
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!1 = !DIFile(filename: "memprof_loop_unroll_b.cc", directory: "/", checksumkind: CSK_MD5, checksum: "00276e590d606451dc54f3ff5f4bba25")
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!2 = !{i32 7, !"Dwarf Version", i32 5}
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!3 = !{i32 2, !"Debug Info Version", i32 3}
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!4 = !{i32 1, !"wchar_size", i32 4}
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!5 = !{i32 8, !"PIC Level", i32 2}
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!6 = !{i32 7, !"PIE Level", i32 2}
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!7 = !{i32 7, !"uwtable", i32 2}
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!8 = !{i32 7, !"frame-pointer", i32 2}
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!9 = !{!"clang version 18.0.0"}
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!10 = distinct !DISubprogram(name: "foo", linkageName: "_Z3foov", scope: !1, file: !1, line: 4, type: !11, scopeLine: 4, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0)
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!11 = !DISubroutineType(types: !12)
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!12 = !{}
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!13 = !DILocation(line: 5, column: 14, scope: !10)
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!14 = !DILocation(line: 5, column: 10, scope: !10)
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!15 = !DILocation(line: 5, column: 21, scope: !16)
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!16 = !DILexicalBlockFile(scope: !10, file: !1, discriminator: 2)
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!17 = !DILocation(line: 5, column: 23, scope: !16)
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!18 = !DILocation(line: 5, column: 5, scope: !16)
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!19 = !DILocation(line: 6, column: 16, scope: !10)
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!20 = !DILocation(line: 6, column: 11, scope: !10)
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!21 = !DILocation(line: 6, column: 9, scope: !10)
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!22 = !DILocation(line: 6, column: 14, scope: !10)
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!23 = !DILocation(line: 7, column: 5, scope: !10)
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!24 = !DILocation(line: 5, column: 28, scope: !25)
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!25 = !DILexicalBlockFile(scope: !10, file: !1, discriminator: 4)
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!26 = !DILocation(line: 5, column: 5, scope: !25)
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!27 = distinct !{!27, !28, !23, !29}
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!28 = !DILocation(line: 5, column: 5, scope: !10)
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!29 = !{!"llvm.loop.mustprogress"}
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!30 = !DILocation(line: 8, column: 1, scope: !10) |