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clang-p2996/clang/test/CodeGen/thinlto-distributed-newpm.ll
Nikita Popov 25af353b0e [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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; FIXME: This test should use CHECK-NEXT to keep up-to-date.
; REQUIRES: x86-registered-target
; Validate ThinLTO post link pipeline at O2 and O3
; RUN: opt -thinlto-bc -o %t.o %s
; RUN: llvm-lto2 run -thinlto-distributed-indexes %t.o \
; RUN: -o %t2.index \
; RUN: -r=%t.o,main,px
; RUN: %clang -target x86_64-grtev4-linux-gnu \
; RUN: -O2 -fexperimental-new-pass-manager -Xclang -fdebug-pass-manager \
; RUN: -c -fthinlto-index=%t.o.thinlto.bc \
; RUN: -o %t.native.o -x ir %t.o 2>&1 | FileCheck -check-prefixes=CHECK-O,CHECK-O2 %s --dump-input=fail
; RUN: %clang -target x86_64-grtev4-linux-gnu \
; RUN: -O3 -fexperimental-new-pass-manager -Xclang -fdebug-pass-manager \
; RUN: -c -fthinlto-index=%t.o.thinlto.bc \
; RUN: -o %t.native.o -x ir %t.o 2>&1 | FileCheck -check-prefixes=CHECK-O,CHECK-O3 %s --dump-input=fail
; CHECK-O: Starting {{.*}}Module pass manager run.
; CHECK-O: Running pass: WholeProgramDevirtPass
; CHECK-O: Running analysis: InnerAnalysisManagerProxy
; CHECK-O: Running pass: LowerTypeTestsPass
; CHECK-O: Invalidating analysis: InnerAnalysisManagerProxy
; CHECK-O: Running pass: ForceFunctionAttrsPass
; CHECK-O: Starting {{.*}}Module pass manager run.
; CHECK-O: Running pass: PGOIndirectCallPromotion
; CHECK-O: Running analysis: ProfileSummaryAnalysis
; CHECK-O: Running analysis: InnerAnalysisManagerProxy
; CHECK-O: Running analysis: OptimizationRemarkEmitterAnalysis on main
; CHECK-O: Running pass: InferFunctionAttrsPass
; CHECK-O: Starting {{.*}}Function pass manager run.
; CHECK-O: Running pass: SimplifyCFGPass on main
; CHECK-O: Running analysis: TargetIRAnalysis on main
; CHECK-O: Running analysis: AssumptionAnalysis on main
; CHECK-O: Running pass: SROA on main
; CHECK-O: Running analysis: DominatorTreeAnalysis on main
; CHECK-O: Running pass: EarlyCSEPass on main
; CHECK-O: Running analysis: TargetLibraryAnalysis on main
; CHECK-O: Running pass: LowerExpectIntrinsicPass on main
; CHECK-O3: Running pass: CallSiteSplittingPass on main
; CHECK-O: Finished {{.*}}Function pass manager run.
; CHECK-O: Running pass: LowerTypeTestsPass
; CHECK-O: Running pass: IPSCCPPass
; CHECK-O: Running pass: CalledValuePropagationPass
; CHECK-O: Running pass: GlobalOptPass
; CHECK-O: Invalidating analysis: InnerAnalysisManagerProxy
; CHECK-O: Running analysis: InnerAnalysisManagerProxy
; CHECK-O: Running pass: PromotePass
; CHECK-O: Running analysis: DominatorTreeAnalysis on main
; CHECK-O: Running analysis: AssumptionAnalysis on main
; CHECK-O: Running pass: DeadArgumentEliminationPass
; CHECK-O: Starting {{.*}}Function pass manager run.
; CHECK-O: Running pass: InstCombinePass on main
; CHECK-O: Running analysis: TargetLibraryAnalysis on main
; CHECK-O: Running analysis: OptimizationRemarkEmitterAnalysis on main
; CHECK-O: Running analysis: TargetIRAnalysis on main
; CHECK-O: Running analysis: AAManager on main
; CHECK-O: Running analysis: BasicAA on main
; CHECK-O: Running analysis: ScopedNoAliasAA on main
; CHECK-O: Running analysis: TypeBasedAA on main
; CHECK-O: Running analysis: OuterAnalysisManagerProxy
; CHECK-O: Running pass: SimplifyCFGPass on main
; CHECK-O: Finished {{.*}}Function pass manager run.
; CHECK-O: Running pass: RequireAnalysisPass<{{.*}}GlobalsAA
; CHECK-O: Running analysis: GlobalsAA
; CHECK-O: Running analysis: CallGraphAnalysis
; CHECK-O: Running pass: RequireAnalysisPass<{{.*}}ProfileSummaryAnalysis
; CHECK-O: Running analysis: InnerAnalysisManagerProxy
; CHECK-O: Running analysis: LazyCallGraphAnalysis
; CHECK-O: Running analysis: FunctionAnalysisManagerCGSCCProxy on (main)
; CHECK-O: Running analysis: OuterAnalysisManagerProxy
; CHECK-O: Starting CGSCC pass manager run.
; CHECK-O: Running pass: InlinerPass on (main)
; CHECK-O: Running pass: PostOrderFunctionAttrsPass on (main)
; CHECK-O: Clearing all analysis results for: main
; CHECK-O3: Running pass: ArgumentPromotionPass on (main)
; CHECK-O3: Running analysis: TargetIRAnalysis on main
; CHECK-O: Starting {{.*}}Function pass manager run.
; CHECK-O: Running pass: SROA on main
; These next two can appear in any order since they are accessed as parameters
; on the same call to SROA::runImpl
; CHECK-O-DAG: Running analysis: DominatorTreeAnalysis on main
; CHECK-O-DAG: Running analysis: AssumptionAnalysis on main
; CHECK-O: Running pass: EarlyCSEPass on main
; CHECK-O: Running analysis: TargetLibraryAnalysis on main
; CHECK-O2: Running analysis: TargetIRAnalysis on main
; CHECK-O: Running analysis: MemorySSAAnalysis on main
; CHECK-O: Running analysis: AAManager on main
; CHECK-O: Running analysis: BasicAA on main
; CHECK-O: Running analysis: ScopedNoAliasAA on main
; CHECK-O: Running analysis: TypeBasedAA on main
; CHECK-O: Running analysis: OuterAnalysisManagerProxy
; CHECK-O: Running pass: SpeculativeExecutionPass on main
; CHECK-O: Running pass: JumpThreadingPass on main
; CHECK-O: Running analysis: LazyValueAnalysis on main
; CHECK-O: Running pass: CorrelatedValuePropagationPass on main
; CHECK-O: Invalidating analysis: LazyValueAnalysis on main
; CHECK-O: Running pass: SimplifyCFGPass on main
; CHECK-O3: Running pass: AggressiveInstCombinePass on main
; CHECK-O: Running pass: InstCombinePass on main
; CHECK-O: Running analysis: OptimizationRemarkEmitterAnalysis on main
; CHECK-O: Running pass: LibCallsShrinkWrapPass on main
; CHECK-O: Running pass: TailCallElimPass on main
; CHECK-O: Running pass: SimplifyCFGPass on main
; CHECK-O: Running pass: ReassociatePass on main
; CHECK-O: Running pass: RequireAnalysisPass<{{.*}}OptimizationRemarkEmitterAnalysis
; CHECK-O: Starting {{.*}}Function pass manager run.
; CHECK-O: Running pass: LoopSimplifyPass on main
; CHECK-O: Running analysis: LoopAnalysis on main
; CHECK-O: Running pass: LCSSAPass on main
; CHECK-O: Finished {{.*}}Function pass manager run.
; CHECK-O: Running pass: SimplifyCFGPass on main
; CHECK-O: Running pass: InstCombinePass on main
; CHECK-O: Starting {{.*}}Function pass manager run.
; CHECK-O: Running pass: LoopSimplifyPass on main
; CHECK-O: Running pass: LCSSAPass on main
; CHECK-O: Finished {{.*}}Function pass manager run.
; CHECK-O: Running pass: SROA on main
; CHECK-O: Running pass: MergedLoadStoreMotionPass on main
; CHECK-O: Running pass: GVN on main
; CHECK-O: Running analysis: MemoryDependenceAnalysis on main
; CHECK-O: Running analysis: PhiValuesAnalysis on main
; CHECK-O: Running pass: MemCpyOptPass on main
; CHECK-O: Running pass: SCCPPass on main
; CHECK-O: Running pass: BDCEPass on main
; CHECK-O: Running analysis: DemandedBitsAnalysis on main
; CHECK-O: Running pass: InstCombinePass on main
; CHECK-O: Running pass: JumpThreadingPass on main
; CHECK-O: Running pass: CorrelatedValuePropagationPass on main
; CHECK-O: Running pass: DSEPass on main
; CHECK-O: Starting {{.*}}Function pass manager run.
; CHECK-O: Running pass: LoopSimplifyPass on main
; CHECK-O: Running pass: LCSSAPass on main
; CHECK-O: Finished {{.*}}Function pass manager run.
; CHECK-O: Running pass: ADCEPass on main
; CHECK-O: Running analysis: PostDominatorTreeAnalysis on main
; CHECK-O: Running pass: SimplifyCFGPass on main
; CHECK-O: Running pass: InstCombinePass on main
; CHECK-O: Finished {{.*}}Function pass manager run.
; CHECK-O: Finished CGSCC pass manager run.
; CHECK-O: Invalidating analysis: DominatorTreeAnalysis on main
; CHECK-O: Invalidating analysis: BasicAA on main
; CHECK-O: Invalidating analysis: AAManager on main
; CHECK-O: Invalidating analysis: MemorySSAAnalysis on main
; CHECK-O: Invalidating analysis: LoopAnalysis on main
; CHECK-O: Invalidating analysis: PhiValuesAnalysis on main
; CHECK-O: Invalidating analysis: MemoryDependenceAnalysis on main
; CHECK-O: Invalidating analysis: DemandedBitsAnalysis on main
; CHECK-O: Invalidating analysis: PostDominatorTreeAnalysis on main
; CHECK-O: Invalidating analysis: CallGraphAnalysis
; CHECK-O: Finished {{.*}}Module pass manager run.
; CHECK-O: Starting {{.*}}Module pass manager run.
; CHECK-O: Running pass: GlobalOptPass
; CHECK-O: Running pass: GlobalDCEPass
; CHECK-O: Running pass: EliminateAvailableExternallyPass
; CHECK-O: Running pass: ReversePostOrderFunctionAttrsPass
; CHECK-O: Running analysis: CallGraphAnalysis
; CHECK-O: Running pass: RequireAnalysisPass<{{.*}}GlobalsAA
; CHECK-O: Starting {{.*}}Function pass manager run.
; CHECK-O: Running pass: Float2IntPass on main
; CHECK-O: Running pass: LowerConstantIntrinsicsPass on main
; CHECK-O: Starting {{.*}}Function pass manager run.
; CHECK-O: Running pass: LoopSimplifyPass on main
; CHECK-O: Running analysis: LoopAnalysis on main
; CHECK-O: Running pass: LCSSAPass on main
; CHECK-O: Finished {{.*}}Function pass manager run.
; CHECK-O: Running analysis: MemorySSAAnalysis on main
; CHECK-O: Running analysis: AAManager on main
; CHECK-O: Running analysis: BasicAA on main
; CHECK-O: Running analysis: ScalarEvolutionAnalysis on main
; CHECK-O: Running analysis: InnerAnalysisManagerProxy
; CHECK-O: Running pass: LoopRotatePass on Loop at depth 1 containing: %b
; CHECK-O: Running pass: LoopDistributePass on main
; CHECK-O: Running pass: InjectTLIMappings on main
; CHECK-O: Running pass: LoopVectorizePass on main
; CHECK-O: Running analysis: BlockFrequencyAnalysis on main
; CHECK-O: Running analysis: BranchProbabilityAnalysis on main
; CHECK-O: Running analysis: PostDominatorTreeAnalysis on main
; CHECK-O: Running analysis: DemandedBitsAnalysis on main
; CHECK-O: Running pass: LoopLoadEliminationPass on main
; CHECK-O: Running analysis: LoopAccessAnalysis on Loop at depth 1 containing: %b
; CHECK-O: Running pass: InstCombinePass on main
; CHECK-O: Running pass: SimplifyCFGPass on main
; CHECK-O: Running pass: SLPVectorizerPass on main
; CHECK-O: Running pass: VectorCombinePass on main
; CHECK-O: Running pass: InstCombinePass on main
; CHECK-O: Running pass: LoopUnrollPass on main
; CHECK-O: Running pass: WarnMissedTransformationsPass on main
; CHECK-O: Running pass: InstCombinePass on main
; CHECK-O: Running pass: RequireAnalysisPass<{{.*}}OptimizationRemarkEmitterAnalysis
; CHECK-O: Starting {{.*}}Function pass manager run.
; CHECK-O: Running pass: LoopSimplifyPass on main
; CHECK-O: Running pass: LCSSAPass on main
; CHECK-O: Finished {{.*}}Function pass manager run.
; CHECK-O: Running pass: LICMPass on Loop at depth 1 containing: %b
; CHECK-O: Running pass: AlignmentFromAssumptionsPass on main
; CHECK-O: Running pass: LoopSinkPass on main
; CHECK-O: Running pass: InstSimplifyPass on main
; CHECK-O: Running pass: DivRemPairsPass on main
; CHECK-O: Running pass: SimplifyCFGPass on main
; CHECK-O: Running pass: SpeculateAroundPHIsPass on main
; CHECK-O: Finished {{.*}}Function pass manager run.
; CHECK-O: Running pass: CGProfilePass
; CHECK-O: Running pass: GlobalDCEPass
; CHECK-O: Running pass: ConstantMergePass
; CHECK-O: Finished {{.*}}Module pass manager run.
; CHECK-O: Finished {{.*}}Module pass manager run.
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-grtev4-linux-gnu"
define i32 @main() {
br label %b
b:
br label %b
ret i32 0
}
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