derek.holloway
7502bf64a4
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56 lines
2.6 KiB
LLVM
56 lines
2.6 KiB
LLVM
; Test direct basename matching for orphan functions.
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;
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; IR has _Z3fool (foo(long)) — orphan, called only from caller() which
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; has no profile. Profile has _Z3fooi (foo(int)) — unused top-level entry.
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; Direct basename matching should match _Z3fool -> _Z3fooi.
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; REQUIRES: x86_64-linux
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; REQUIRES: asserts
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; RUN: llvm-profdata merge --sample --extbinary %S/Inputs/pseudo-probe-stale-profile-direct-basename.prof -o %t.prof
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; RUN: opt < %s -passes=sample-profile -sample-profile-file=%t.prof --salvage-stale-profile --salvage-unused-profile -S --debug-only=sample-profile,sample-profile-matcher,sample-profile-impl 2>&1 | FileCheck %s
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; CHECK: Function _Z3fool is not in profile or profile symbol list.
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; CHECK: Direct basename match: _Z3fool (IR) -> _Z3fooi (Profile) [basename: foo]
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; CHECK: Direct basename matching found 1 matches
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; CHECK: Run stale profile matching for _Z3fool
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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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define dso_local void @_Z3fool(i64 %y) #0 !dbg !11 {
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entry:
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call void @llvm.pseudoprobe(i64 5326982120444056491, i64 1, i32 0, i64 -1), !dbg !14
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ret void, !dbg !15
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}
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define dso_local void @caller() #0 !dbg !16 {
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entry:
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call void @llvm.pseudoprobe(i64 -7421642274262752513, i64 1, i32 0, i64 -1), !dbg !18
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call void @_Z3fool(i64 0), !dbg !19
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ret void, !dbg !20
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}
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declare void @llvm.pseudoprobe(i64, i64, i32, i64)
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attributes #0 = { "use-sample-profile" }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!2, !3}
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!llvm.pseudo_probe_desc = !{!9, !10}
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !1, isOptimized: false, runtimeVersion: 0, emissionKind: NoDebug, nameTableKind: None)
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!1 = !DIFile(filename: "test.cpp", directory: "/tmp")
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!2 = !{i32 2, !"Debug Info Version", i32 3}
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!3 = !{i32 7, !"uwtable", i32 2}
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!9 = !{i64 5326982120444056491, i64 4294967295, !"_Z3fool"}
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!10 = !{i64 -7421642274262752513, i64 4294967295, !"caller"}
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!11 = distinct !DISubprogram(name: "foo", linkageName: "_Z3fool", scope: !1, file: !1, line: 3, type: !12, scopeLine: 3, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0)
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!12 = !DISubroutineType(types: !13)
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!13 = !{}
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!14 = !DILocation(line: 4, column: 1, scope: !11)
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!15 = !DILocation(line: 5, column: 1, scope: !11)
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!16 = distinct !DISubprogram(name: "caller", linkageName: "caller", scope: !1, file: !1, line: 7, type: !12, scopeLine: 7, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0)
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!18 = !DILocation(line: 8, column: 1, scope: !16)
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!19 = !DILocation(line: 9, column: 1, scope: !16)
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!20 = !DILocation(line: 10, column: 1, scope: !16)
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