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llvm-mirror/test/Other/new-pm-thinlto-postlink-pgo-defaults.ll
Nikita Popov ae08f299bd [NewPM][LVI] Abandon LVI after CVP 
As mentioned on D70376, LVI can currently cause performance issues
when running under NewPM. The problem is that, unlike the legacy
pass manager, NewPM will not immediately discard the LVI analysis
if the following pass does not need it. This is a problem, because
LVI has a high memory requirement, and mass invalidation of LVI
values is very inefficient. LVI should only be alive during passes
that actively interact with it.

This patch addresses the issue by explicitly abandoning LVI after CVP,
which gets us back to the LegacyPM behavior.

Differential Revision: https://reviews.llvm.org/D84959
2020-08-01 23:47:46 +02:00

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; Validate ThinLTO post link pipeline when we have instrumentation PGO
;
; Postlink pipelines:
; RUN: opt -disable-verify -debug-pass-manager \
; RUN: -passes='thinlto<O1>' -S %s 2>&1 \
; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-O1,%llvmcheckext --dump-input=fail
; RUN: opt -disable-verify -debug-pass-manager \
; RUN: -passes='thinlto<O2>' -S %s 2>&1 \
; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-O2,CHECK-O23SZ,%llvmcheckext --dump-input=fail
; RUN: opt -disable-verify -debug-pass-manager -passes-ep-pipeline-start='no-op-module' \
; RUN: -passes='thinlto<O3>' -S %s 2>&1 \
; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-O3,CHECK-O23SZ,%llvmcheckext --dump-input=fail
; RUN: opt -disable-verify -debug-pass-manager \
; RUN: -passes='thinlto<Os>' -S %s 2>&1 \
; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-Os,CHECK-O23SZ,%llvmcheckext --dump-input=fail
; RUN: opt -disable-verify -debug-pass-manager \
; RUN: -passes='thinlto<Oz>' -S %s 2>&1 \
; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-Oz,CHECK-O23SZ,%llvmcheckext --dump-input=fail
; RUN: opt -disable-verify -debug-pass-manager -new-pm-debug-info-for-profiling \
; RUN: -passes='thinlto<O2>' -S %s 2>&1 \
; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-O2,CHECK-O23SZ,%llvmcheckext --dump-input=fail
;
; CHECK-O: Starting {{.*}}Module pass manager run.
; CHECK-O-NEXT: Starting {{.*}}Module pass manager run.
; CHECK-O-NEXT: Running pass: ForceFunctionAttrsPass
; CHECK-EP-PIPELINE-START-NEXT: Running pass: NoOpModulePass
; CHECK-O-NEXT: Starting {{.*}}Module pass manager run.
; CHECK-O-NEXT: Running pass: PGOIndirectCallPromotion
; CHECK-O-NEXT: Running analysis: ProfileSummaryAnalysis
; CHECK-O-NEXT: Running analysis: InnerAnalysisManagerProxy
; CHECK-O-NEXT: Running analysis: OptimizationRemarkEmitterAnalysis
; CHECK-O-NEXT: Running pass: InferFunctionAttrsPass
; CHECK-O-NEXT: Running analysis: TargetLibraryAnalysis
; CHECK-O-NEXT: Starting {{.*}}Function pass manager run.
; CHECK-O-NEXT: Running pass: SimplifyCFGPass
; CHECK-O-NEXT: Running analysis: TargetIRAnalysis
; CHECK-O-NEXT: Running analysis: AssumptionAnalysis
; CHECK-O-NEXT: Running pass: SROA
; CHECK-O-NEXT: Running analysis: DominatorTreeAnalysis
; CHECK-O-NEXT: Running pass: EarlyCSEPass
; CHECK-O-NEXT: Running analysis: TargetLibraryAnalysis
; CHECK-O-NEXT: Running pass: LowerExpectIntrinsicPass
; CHECK-O3-NEXT: Running pass: CallSiteSplittingPass
; CHECK-O-NEXT: Finished {{.*}}Function pass manager run.
; CHECK-O-NEXT: Running pass: LowerTypeTestsPass
; CHECK-O-NEXT: Running pass: IPSCCPPass
; CHECK-O-NEXT: Running pass: CalledValuePropagationPass
; CHECK-O-NEXT: Running pass: GlobalOptPass
; CHECK-O-NEXT: Running pass: PromotePass
; CHECK-O-NEXT: Running pass: DeadArgumentEliminationPass
; CHECK-O-NEXT: Starting {{.*}}Function pass manager run.
; CHECK-O-NEXT: Running pass: InstCombinePass
; CHECK-O-NEXT: Running analysis: AAManager
; CHECK-O-NEXT: Running analysis: OuterAnalysisManagerProxy
; CHECK-O-NEXT: Running analysis: BlockFrequencyAnalysis on foo
; These next two can appear in any order since they are accessed as parameters
; on the same call to BlockFrequencyInfo::calculate.
; CHECK-O-DAG: Running analysis: LoopAnalysis on foo
; CHECK-O-DAG: Running analysis: BranchProbabilityAnalysis on foo
; CHECK-O-NEXT: Running analysis: PostDominatorTreeAnalysis on foo
; CHECK-O-NEXT: Running pass: SimplifyCFGPass
; CHECK-O-NEXT: Finished {{.*}}Function pass manager run.
; CHECK-O-NEXT: Running pass: ModuleInlinerWrapperPass
; CHECK-O-NEXT: Running analysis: InlineAdvisorAnalysis
; CHECK-O-NEXT: Starting {{.*}}Module pass manager run.
; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}GlobalsAA
; CHECK-O-NEXT: Running analysis: GlobalsAA
; CHECK-O-NEXT: Running analysis: CallGraphAnalysis
; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}ProfileSummaryAnalysis
; CHECK-O-NEXT: Running analysis: InnerAnalysisManagerProxy
; CHECK-O-NEXT: Running analysis: LazyCallGraphAnalysis
; CHECK-O-NEXT: Running analysis: FunctionAnalysisManagerCGSCCProxy
; CHECK-O-NEXT: Running analysis: OuterAnalysisManagerProxy<{{.*}}LazyCallGraph::SCC{{.*}}>
; CHECK-O-NEXT: Running pass: DevirtSCCRepeatedPass
; CHECK-O-NEXT: Starting CGSCC pass manager run.
; CHECK-O-NEXT: Running pass: InlinerPass
; CHECK-O-NEXT: Running pass: PostOrderFunctionAttrsPass
; CHECK-O3-NEXT: Running pass: ArgumentPromotionPass
; CHECK-O2-NEXT: Running pass: OpenMPOptPass
; CHECK-O3-NEXT: Running pass: OpenMPOptPass
; CHECK-O-NEXT: Starting {{.*}}Function pass manager run.
; CHECK-O-NEXT: Running pass: SROA
; CHECK-O-NEXT: Running pass: EarlyCSEPass
; CHECK-O-NEXT: Running analysis: MemorySSAAnalysis
; CHECK-O23SZ-NEXT: Running pass: SpeculativeExecutionPass
; CHECK-O23SZ-NEXT: Running pass: JumpThreadingPass
; CHECK-O23SZ-NEXT: Running analysis: LazyValueAnalysis
; CHECK-O23SZ-NEXT: Running pass: CorrelatedValuePropagationPass
; CHECK-O23SZ-NEXT: Invalidating analysis: LazyValueAnalysis
; CHECK-O-NEXT: Running pass: SimplifyCFGPass
; CHECK-O3-NEXT: Running pass: AggressiveInstCombinePass
; CHECK-O-NEXT: Running pass: InstCombinePass
; CHECK-O1-NEXT: Running pass: LibCallsShrinkWrapPass
; CHECK-O2-NEXT: Running pass: LibCallsShrinkWrapPass
; CHECK-O3-NEXT: Running pass: LibCallsShrinkWrapPass
; CHECK-O23SZ-NEXT: Running pass: TailCallElimPass
; CHECK-O-NEXT: Running pass: SimplifyCFGPass
; CHECK-O-NEXT: Running pass: ReassociatePass
; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}OptimizationRemarkEmitterAnalysis
; CHECK-O-NEXT: Starting {{.*}}Function pass manager run
; CHECK-O-NEXT: Running pass: LoopSimplifyPass
; CHECK-O-NEXT: Running pass: LCSSAPass
; CHECK-O-NEXT: Finished {{.*}}Function pass manager run
; CHECK-O-NEXT: Running analysis: ScalarEvolutionAnalysis
; CHECK-O-NEXT: Running analysis: InnerAnalysisManagerProxy
; CHECK-O-NEXT: Starting Loop pass manager run.
; CHECK-O-NEXT: Running pass: LoopInstSimplifyPass
; CHECK-O-NEXT: Running pass: LoopSimplifyCFGPass
; CHECK-O-NEXT: Running pass: LoopRotatePass
; CHECK-O-NEXT: Running pass: LICM
; CHECK-O-NEXT: Running pass: SimpleLoopUnswitchPass
; CHECK-O-NEXT: Finished Loop pass manager run.
; CHECK-O-NEXT: Running pass: SimplifyCFGPass
; CHECK-O-NEXT: Running pass: InstCombinePass
; CHECK-O-NEXT: Starting {{.*}}Function pass manager run
; CHECK-O-NEXT: Running pass: LoopSimplifyPass
; CHECK-O-NEXT: Running pass: LCSSAPass
; CHECK-O-NEXT: Finished {{.*}}Function pass manager run
; CHECK-O-NEXT: Starting Loop pass manager run.
; CHECK-O-NEXT: Running pass: IndVarSimplifyPass
; CHECK-O-NEXT: Running pass: LoopIdiomRecognizePass
; CHECK-O-NEXT: Running pass: LoopDeletionPass
; CHECK-O-NEXT: Running pass: LoopFullUnrollPass
; CHECK-O-NEXT: Finished Loop pass manager run.
; CHECK-O-NEXT: Running pass: SROA on foo
; CHECK-Os-NEXT: Running pass: MergedLoadStoreMotionPass
; CHECK-Os-NEXT: Running pass: GVN
; CHECK-Os-NEXT: Running analysis: MemoryDependenceAnalysis
; CHECK-Os-NEXT: Running analysis: PhiValuesAnalysis
; CHECK-Oz-NEXT: Running pass: MergedLoadStoreMotionPass
; CHECK-Oz-NEXT: Running pass: GVN
; CHECK-Oz-NEXT: Running analysis: MemoryDependenceAnalysis
; CHECK-Oz-NEXT: Running analysis: PhiValuesAnalysis
; CHECK-O2-NEXT: Running pass: MergedLoadStoreMotionPass
; CHECK-O2-NEXT: Running pass: GVN
; CHECK-O2-NEXT: Running analysis: MemoryDependenceAnalysis
; CHECK-O2-NEXT: Running analysis: PhiValuesAnalysis
; CHECK-O3-NEXT: Running pass: MergedLoadStoreMotionPass
; CHECK-O3-NEXT: Running pass: GVN
; CHECK-O3-NEXT: Running analysis: MemoryDependenceAnalysis
; CHECK-O3-NEXT: Running analysis: PhiValuesAnalysis
; CHECK-O-NEXT: Running pass: MemCpyOptPass
; CHECK-O1-NEXT: Running analysis: MemoryDependenceAnalysis
; CHECK-O1-NEXT: Running analysis: PhiValuesAnalysis
; CHECK-O-NEXT: Running pass: SCCPPass
; CHECK-O-NEXT: Running pass: BDCEPass
; CHECK-O-NEXT: Running analysis: DemandedBitsAnalysis
; CHECK-O-NEXT: Running pass: InstCombinePass
; CHECK-O23SZ-NEXT: Running pass: JumpThreadingPass
; CHECK-O23SZ-NEXT: Running analysis: LazyValueAnalysis
; CHECK-O23SZ-NEXT: Running pass: CorrelatedValuePropagationPass
; CHECK-O23SZ-NEXT: Invalidating analysis: LazyValueAnalysis
; CHECK-O23SZ-NEXT: Running pass: DSEPass
; CHECK-O23SZ-NEXT: Starting {{.*}}Function pass manager run
; CHECK-O23SZ-NEXT: Running pass: LoopSimplifyPass
; CHECK-O23SZ-NEXT: Running pass: LCSSAPass
; CHECK-O23SZ-NEXT: Finished {{.*}}Function pass manager run
; CHECK-O23SZ-NEXT: Running pass: LICMPass
; CHECK-O-NEXT: Running pass: ADCEPass
; CHECK-O-NEXT: Running pass: SimplifyCFGPass
; CHECK-O-NEXT: Running pass: InstCombinePass
; CHECK-O-NEXT: Finished {{.*}}Function pass manager run.
; CHECK-O-NEXT: Finished CGSCC pass manager run.
; CHECK-O-NEXT: Finished {{.*}}Module pass manager run.
; CHECK-O-NEXT: Finished {{.*}}Module pass manager run.
; CHECK-O-NEXT: Starting {{.*}}Module pass manager run.
; CHECK-O-NEXT: Running pass: GlobalOptPass
; CHECK-O-NEXT: Running pass: GlobalDCEPass
; CHECK-O-NEXT: Running pass: EliminateAvailableExternallyPass
; CHECK-O-NEXT: Running pass: ReversePostOrderFunctionAttrsPass
; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}GlobalsAA
; CHECK-O-NEXT: Starting {{.*}}Function pass manager run.
; CHECK-O-NEXT: Running pass: Float2IntPass
; CHECK-O-NEXT: Running pass: LowerConstantIntrinsicsPass
; CHECK-EXT: Running pass: {{.*}}::Bye
; CHECK-O-NEXT: Starting {{.*}}Function pass manager run.
; CHECK-O-NEXT: Running pass: LoopSimplifyPass on foo
; CHECK-O-NEXT: Running pass: LCSSAPass on foo
; CHECK-O-NEXT: Finished {{.*}}Function pass manager run.
; CHECK-O-NEXT: Running pass: LoopRotatePass
; CHECK-O-NEXT: Running pass: LoopDistributePass
; CHECK-O-NEXT: Running pass: InjectTLIMappings
; CHECK-O-NEXT: Running pass: LoopVectorizePass
; CHECK-O-NEXT: Running pass: LoopLoadEliminationPass
; CHECK-O-NEXT: Running analysis: LoopAccessAnalysis
; CHECK-O-NEXT: Running pass: InstCombinePass
; CHECK-O-NEXT: Running pass: SimplifyCFGPass
; CHECK-O2-NEXT: Running pass: SLPVectorizerPass
; CHECK-O3-NEXT: Running pass: SLPVectorizerPass
; CHECK-Os-NEXT: Running pass: SLPVectorizerPass
; CHECK-O-NEXT: Running pass: VectorCombinePass
; CHECK-O-NEXT: Running pass: InstCombinePass
; CHECK-O-NEXT: Running pass: LoopUnrollPass
; CHECK-O-NEXT: Running pass: WarnMissedTransformationsPass
; CHECK-O-NEXT: Running pass: InstCombinePass
; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}OptimizationRemarkEmitterAnalysis
; CHECK-O-NEXT: Starting {{.*}}Function pass manager run
; CHECK-O-NEXT: Running pass: LoopSimplifyPass
; CHECK-O-NEXT: Running pass: LCSSAPass
; CHECK-O-NEXT: Finished {{.*}}Function pass manager run
; CHECK-O-NEXT: Running pass: LICMPass
; CHECK-O-NEXT: Running pass: AlignmentFromAssumptionsPass
; CHECK-O-NEXT: Running pass: LoopSinkPass
; CHECK-O-NEXT: Running pass: InstSimplifyPass
; CHECK-O-NEXT: Running pass: DivRemPairsPass
; CHECK-O-NEXT: Running pass: SimplifyCFGPass
; CHECK-O-NEXT: Running pass: SpeculateAroundPHIsPass
; CHECK-O-NEXT: Finished {{.*}}Function pass manager run.
; CHECK-O-NEXT: Running pass: CGProfilePass
; CHECK-O-NEXT: Running pass: GlobalDCEPass
; CHECK-O-NEXT: Running pass: ConstantMergePass
; CHECK-O-NEXT: Finished {{.*}}Module pass manager run.
; CHECK-O-NEXT: Finished {{.*}}Module pass manager run.
; CHECK-O-NEXT: Running pass: PrintModulePass
; Make sure we get the IR back out without changes when we print the module.
; CHECK-O-LABEL: define void @foo(i32 %n) local_unnamed_addr {
; CHECK-O-NEXT: entry:
; CHECK-O-NEXT: br label %loop
; CHECK-O: loop:
; CHECK-O-NEXT: %iv = phi i32 [ 0, %entry ], [ %iv.next, %loop ]
; CHECK-O-NEXT: %iv.next = add i32 %iv, 1
; CHECK-O-NEXT: tail call void @bar()
; CHECK-O-NEXT: %cmp = icmp eq i32 %iv, %n
; CHECK-O-NEXT: br i1 %cmp, label %exit, label %loop
; CHECK-O: exit:
; CHECK-O-NEXT: ret void
; CHECK-O-NEXT: }
;
; Ignore a bunch of intervening metadata containing profile data.
;
; CHECK-O: Finished {{.*}}Module pass manager run.
declare void @bar() local_unnamed_addr
define void @foo(i32 %n) local_unnamed_addr {
entry:
br label %loop
loop:
%iv = phi i32 [ 0, %entry ], [ %iv.next, %loop ]
%iv.next = add i32 %iv, 1
tail call void @bar()
%cmp = icmp eq i32 %iv, %n
br i1 %cmp, label %exit, label %loop
exit:
ret void
}
!llvm.module.flags = !{!0}
!0 = !{i32 1, !"ProfileSummary", !1}
!1 = !{!2, !3, !4, !5, !6, !7, !8, !9}
!2 = !{!"ProfileFormat", !"InstrProf"}
!3 = !{!"TotalCount", i64 0}
!4 = !{!"MaxCount", i64 0}
!5 = !{!"MaxInternalCount", i64 0}
!6 = !{!"MaxFunctionCount", i64 0}
!7 = !{!"NumCounts", i64 0}
!8 = !{!"NumFunctions", i64 0}
!9 = !{!"DetailedSummary", !10}
!10 = !{!11, !12, !13, !14, !15, !16, !17, !18, !19, !20, !21, !22, !23, !24, !25, !26}
!11 = !{i32 10000, i64 0, i32 0}
!12 = !{i32 100000, i64 0, i32 0}
!13 = !{i32 200000, i64 0, i32 0}
!14 = !{i32 300000, i64 0, i32 0}
!15 = !{i32 400000, i64 0, i32 0}
!16 = !{i32 500000, i64 0, i32 0}
!17 = !{i32 600000, i64 0, i32 0}
!18 = !{i32 700000, i64 0, i32 0}
!19 = !{i32 800000, i64 0, i32 0}
!20 = !{i32 900000, i64 0, i32 0}
!21 = !{i32 950000, i64 0, i32 0}
!22 = !{i32 990000, i64 0, i32 0}
!23 = !{i32 999000, i64 0, i32 0}
!24 = !{i32 999900, i64 0, i32 0}
!25 = !{i32 999990, i64 0, i32 0}
!26 = !{i32 999999, i64 0, i32 0}
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