80 lines
4.1 KiB
LLVM
80 lines
4.1 KiB
LLVM
; RUN: opt < %s -passes='pseudo-probe-update' -S | FileCheck %s
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declare i32 @f1()
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declare i32 @f2()
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declare void @f3()
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define i32 @foo(i1 %cond, i1 %cond2) !dbg !4 !prof !10 {
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call void @llvm.pseudoprobe(i64 6699318081062747564, i64 1, i32 0, i64 -1)
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br i1 %cond, label %T1, label %Merge, !prof !11
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T1: ; preds = %0
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%v1 = call i32 @f1(), !prof !12
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%cond3 = icmp eq i32 %v1, 412
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call void @llvm.pseudoprobe(i64 6699318081062747564, i64 2, i32 0, i64 -1)
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;; The distribution factor -8513881372706734080 stands for 53.85%, whic is from 7/6+7.
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; CHECK: call void @llvm.pseudoprobe(i64 [[#GUID:]], i64 4, i32 0, i64 -8513881372706734080)
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call void @llvm.pseudoprobe(i64 6699318081062747564, i64 4, i32 0, i64 -1), !dbg !13
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;; Probe 7 has two copies, since they don't share the same inline context, they are not
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;; considered sharing samples, thus their distribution factors are not fixed up.
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; CHECK: call void @llvm.pseudoprobe(i64 [[#GUID]], i64 7, i32 0, i64 -1)
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call void @llvm.pseudoprobe(i64 6699318081062747564, i64 7, i32 0, i64 -1), !dbg !13
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;; Similar to Probe 7, one copy of Probe 8 doesn't have inline context.
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; CHECK: call void @llvm.pseudoprobe(i64 [[#GUID]], i64 8, i32 0, i64 -1)
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call void @llvm.pseudoprobe(i64 6699318081062747564, i64 8, i32 0, i64 -1), !dbg !13
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br i1 %cond3, label %T2, label %F2, !prof !11
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Merge: ; preds = %0
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%v2 = call i32 @f2(), !prof !12
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call void @llvm.pseudoprobe(i64 6699318081062747564, i64 3, i32 0, i64 -1)
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;; The distribution factor 8513881922462547968 stands for 46.25%, which is from 6/6+7.
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; CHECK: call void @llvm.pseudoprobe(i64 [[#GUID]], i64 4, i32 0, i64 8513881922462547968)
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call void @llvm.pseudoprobe(i64 6699318081062747564, i64 4, i32 0, i64 8513881922462547968), !dbg !13
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; CHECK: call void @llvm.pseudoprobe(i64 [[#GUID]], i64 7, i32 0, i64 -1)
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call void @llvm.pseudoprobe(i64 6699318081062747564, i64 7, i32 0, i64 -1), !dbg !18
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; CHECK: call void @llvm.pseudoprobe(i64 [[#GUID]], i64 8, i32 0, i64 -1)
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call void @llvm.pseudoprobe(i64 6699318081062747564, i64 8, i32 0, i64 -1), !dbg !19
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br i1 %cond2, label %T2, label %F2, !prof !11
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T2: ; preds = %Merge, %T1
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%B1 = phi i32 [ %v1, %T1 ], [ %v2, %Merge ]
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call void @f3(), !prof !12
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call void @llvm.pseudoprobe(i64 6699318081062747564, i64 5, i32 0, i64 -1)
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ret i32 %B1
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F2: ; preds = %Merge, %T1
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%B2 = phi i32 [ %v1, %T1 ], [ %v2, %Merge ]
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call void @llvm.pseudoprobe(i64 6699318081062747564, i64 6, i32 0, i64 -1)
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ret i32 %B2
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}
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; Function Attrs: inaccessiblememonly nounwind willreturn
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declare void @llvm.pseudoprobe(i64, i64, i32, i64) #0
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attributes #0 = { inaccessiblememonly nounwind willreturn }
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!llvm.module.flags = !{!0, !1}
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!llvm.pseudo_probe_desc = !{!2, !3}
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!0 = !{i32 7, !"Dwarf Version", i32 4}
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!1 = !{i32 2, !"Debug Info Version", i32 3}
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!2 = !{i64 6699318081062747564, i64 281479271677951, !"foo", null}
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!3 = !{i64 6468398850841090686, i64 138828622701, !"zen", null}
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!4 = distinct !DISubprogram(name: "foo", scope: !5, file: !5, line: 9, type: !6, scopeLine: 9, spFlags: DISPFlagDefinition, unit: !9)
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!5 = !DIFile(filename: "test.cpp", directory: "test")
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!6 = !DISubroutineType(types: !7)
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!7 = !{!8, !8}
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!8 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!9 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !5, isOptimized: false, runtimeVersion: 0, emissionKind: NoDebug)
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!10 = !{!"function_entry_count", i64 14}
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!11 = !{!"branch_weights", i32 8, i32 7}
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!12 = !{!"branch_weights", i32 7}
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!13 = !DILocation(line: 39, column: 9, scope: !14, inlinedAt: !16)
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!14 = distinct !DILexicalBlock(scope: !15, file: !5, line: 39, column: 7)
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!15 = distinct !DISubprogram(name: "zen", scope: !5, file: !5, line: 37, type: !6, scopeLine: 38, spFlags: DISPFlagDefinition, unit: !9)
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!16 = distinct !DILocation(line: 10, column: 11, scope: !17)
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!17 = !DILexicalBlockFile(scope: !4, file: !5, discriminator: 186646551)
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!18 = !DILocation(line: 53, column: 3, scope: !15, inlinedAt: !19)
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!19 = !DILocation(line: 12, column: 3, scope: !4) |