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10ca53ce65
Addition of this pass has been botched. There is no particular reason why it had to be sold as an inseparable part of new-pm transition. It was added when old-pm was still the default, and very *very* few users were actually tracking new-pm, so it's effects weren't measured. Which means, some of the turnoil of the new-pm transition are actually likely regressions due to this pass. Likewise, there has been a number of post-commit feedback (post new-pm switch), namely * https://reviews.llvm.org/D37467#2787157 (regresses HW-loops) * https://reviews.llvm.org/D37467#2787259 (should not be in middle-end, should run after LSR, not before) * https://reviews.llvm.org/D95789 (an attempt to fix bad loop backedge metadata) and in the half year past, the pass authors (google) still haven't found time to respond to any of that. Hereby it is proposed to backout the pass from the pipeline, until someone who cares about it can address the issues reported, and properly start the process of adding a new pass into the pipeline, with proper performance evaluation. Furthermore, neither google nor facebook reports any perf changes from this change, so i'm dropping the pass completely. It can always be re-reverted should/if anyone want to pick it up again. Reviewed By: aeubanks Differential Revision: https://reviews.llvm.org/D104099
241 lines
12 KiB
LLVM
241 lines
12 KiB
LLVM
; Validate ThinLTO postlink pipeline when we have Sample PGO
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;
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; RUN: opt -disable-verify -verify-cfg-preserved=0 -debug-pass-manager \
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; RUN: -pgo-kind=pgo-sample-use-pipeline -profile-file='%S/Inputs/new-pm-thinlto-samplepgo-defaults.prof' \
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; RUN: -passes='thinlto<O1>' -S %s 2>&1 \
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; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-O1,%llvmcheckext
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; RUN: opt -disable-verify -verify-cfg-preserved=0 -debug-pass-manager \
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; RUN: -pgo-kind=pgo-sample-use-pipeline -profile-file='%S/Inputs/new-pm-thinlto-samplepgo-defaults.prof' \
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; RUN: -passes='thinlto<O2>' -S %s 2>&1 \
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; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-O2,CHECK-O23SZ,%llvmcheckext
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; RUN: opt -disable-verify -verify-cfg-preserved=0 -debug-pass-manager -passes-ep-pipeline-start='no-op-module' \
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; RUN: -pgo-kind=pgo-sample-use-pipeline -profile-file='%S/Inputs/new-pm-thinlto-samplepgo-defaults.prof' \
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; RUN: -passes='thinlto<O3>' -S %s 2>&1 \
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; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-O3,CHECK-O23SZ,%llvmcheckext
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; RUN: opt -disable-verify -verify-cfg-preserved=0 -debug-pass-manager \
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; RUN: -pgo-kind=pgo-sample-use-pipeline -profile-file='%S/Inputs/new-pm-thinlto-samplepgo-defaults.prof' \
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; RUN: -passes='thinlto<Os>' -S %s 2>&1 \
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; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-Os,CHECK-O23SZ,%llvmcheckext
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; RUN: opt -disable-verify -verify-cfg-preserved=0 -debug-pass-manager \
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; RUN: -pgo-kind=pgo-sample-use-pipeline -profile-file='%S/Inputs/new-pm-thinlto-samplepgo-defaults.prof' \
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; RUN: -passes='thinlto<Oz>' -S %s 2>&1 \
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; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-Oz,CHECK-O23SZ,%llvmcheckext
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; RUN: opt -disable-verify -verify-cfg-preserved=0 -debug-pass-manager -new-pm-debug-info-for-profiling \
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; RUN: -pgo-kind=pgo-sample-use-pipeline -profile-file='%S/Inputs/new-pm-thinlto-samplepgo-defaults.prof' \
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; RUN: -passes='thinlto<O2>' -S %s 2>&1 \
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; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-O2,CHECK-O23SZ,%llvmcheckext
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; Suppress FileCheck --allow-unused-prefixes=false diagnostics.
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; CHECK-NOEXT: {{^}}
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; CHECK-O: Running pass: Annotation2Metadata
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; CHECK-O-NEXT: Running pass: ForceFunctionAttrsPass
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; CHECK-EP-PIPELINE-START-NEXT: Running pass: NoOpModulePass
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; CHECK-O-NEXT: Running pass: InferFunctionAttrsPass
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; CHECK-O-NEXT: Running analysis: InnerAnalysisManagerProxy
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; CHECK-O-NEXT: Running analysis: TargetLibraryAnalysis
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; CHECK-O-NEXT: Running pass: LowerExpectIntrinsicPass
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; CHECK-O-NEXT: Running pass: SimplifyCFGPass
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; CHECK-O-NEXT: Running analysis: TargetIRAnalysis
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; CHECK-O-NEXT: Running analysis: AssumptionAnalysis
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; CHECK-O-NEXT: Running pass: SROA
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; CHECK-O-NEXT: Running analysis: DominatorTreeAnalysis
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; CHECK-O-NEXT: Running pass: EarlyCSEPass
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; CHECK-O-NEXT: Running analysis: TargetLibraryAnalysis
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; CHECK-O3-NEXT: Running pass: CallSiteSplittingPass
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; CHECK-O-NEXT: Running pass: InstCombinePass on foo
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; CHECK-O-NEXT: Running analysis: OptimizationRemarkEmitterAnalysis on foo
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; CHECK-O-NEXT: Running analysis: AAManager on foo
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; CHECK-O-NEXT: Running analysis: BasicAA
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; CHECK-O-NEXT: Running analysis: ScopedNoAliasAA
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; CHECK-O-NEXT: Running analysis: TypeBasedAA
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; CHECK-O-NEXT: Running analysis: OuterAnalysisManagerProxy
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; CHECK-O-NEXT: Running pass: SampleProfileLoaderPass
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; CHECK-O-NEXT: Running analysis: ProfileSummaryAnalysis
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; CHECK-O-NEXT: Running analysis: CallGraphAnalysis
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; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}ProfileSummaryAnalysis
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; CHECK-O-NEXT: Running pass: PGOIndirectCallPromotion
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; CHECK-O2-NEXT: Running pass: OpenMPOptPass
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; CHECK-O3-NEXT: Running pass: OpenMPOptPass
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; CHECK-O-NEXT: Running pass: LowerTypeTestsPass
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; CHECK-O-NEXT: Running pass: IPSCCPPass
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; CHECK-O-NEXT: Running pass: CalledValuePropagationPass
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; CHECK-O-NEXT: Running pass: GlobalOptPass
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; CHECK-O-NEXT: Running pass: PromotePass
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; CHECK-O-NEXT: Running pass: DeadArgumentEliminationPass
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; CHECK-O-NEXT: Running pass: InstCombinePass
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; CHECK-O-NEXT: Running analysis: BlockFrequencyAnalysis on foo
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; These next two can appear in any order since they are accessed as parameters
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; on the same call to BlockFrequencyInfo::calculate.
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; CHECK-O-DAG: Running analysis: LoopAnalysis on foo
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; CHECK-O-DAG: Running analysis: BranchProbabilityAnalysis on foo
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; CHECK-O-NEXT: Running analysis: PostDominatorTreeAnalysis on foo
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; CHECK-O-NEXT: Running pass: SimplifyCFGPass on foo
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; CHECK-O-NEXT: Running pass: ModuleInlinerWrapperPass
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; CHECK-O-NEXT: Running analysis: InlineAdvisorAnalysis
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; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}GlobalsAA
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; CHECK-O-NEXT: Running analysis: GlobalsAA
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; CHECK-O-NEXT: Running pass: InvalidateAnalysisPass<{{.*}}AAManager
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; CHECK-O-NEXT: Invalidating analysis: AAManager
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; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}ProfileSummaryAnalysis
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; CHECK-O-NEXT: Running analysis: InnerAnalysisManagerProxy
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; CHECK-O-NEXT: Running analysis: LazyCallGraphAnalysis
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; CHECK-O-NEXT: Running analysis: FunctionAnalysisManagerCGSCCProxy
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; CHECK-O-NEXT: Running analysis: OuterAnalysisManagerProxy
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; CHECK-O-NEXT: Running pass: DevirtSCCRepeatedPass
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; CHECK-O-NEXT: Running pass: InlinerPass
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; CHECK-O-NEXT: Running pass: InlinerPass
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; CHECK-O-NEXT: Running pass: PostOrderFunctionAttrsPass
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; CHECK-O-NEXT: Running analysis: AAManager
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; CHECK-O3-NEXT: Running pass: ArgumentPromotionPass
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; CHECK-O2-NEXT: Running pass: OpenMPOptCGSCCPass
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; CHECK-O3-NEXT: Running pass: OpenMPOptCGSCCPass
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; CHECK-O-NEXT: Running pass: SROA
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; CHECK-O-NEXT: Running pass: EarlyCSEPass
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; CHECK-O-NEXT: Running analysis: MemorySSAAnalysis
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; CHECK-O23SZ-NEXT: Running pass: SpeculativeExecutionPass
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; CHECK-O23SZ-NEXT: Running pass: JumpThreadingPass
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; CHECK-O23SZ-NEXT: Running analysis: LazyValueAnalysis
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; CHECK-O23SZ-NEXT: Running pass: CorrelatedValuePropagationPass
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; CHECK-O23SZ-NEXT: Invalidating analysis: LazyValueAnalysis
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; CHECK-O-NEXT: Running pass: SimplifyCFGPass
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; CHECK-O3-NEXT: Running pass: AggressiveInstCombinePass
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; CHECK-O-NEXT: Running pass: InstCombinePass
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; CHECK-O1-NEXT: Running pass: LibCallsShrinkWrapPass
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; CHECK-O2-NEXT: Running pass: LibCallsShrinkWrapPass
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; CHECK-O3-NEXT: Running pass: LibCallsShrinkWrapPass
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; CHECK-O23SZ-NEXT: Running pass: TailCallElimPass
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; CHECK-O-NEXT: Running pass: SimplifyCFGPass
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; CHECK-O-NEXT: Running pass: ReassociatePass
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; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}OptimizationRemarkEmitterAnalysis
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; CHECK-O-NEXT: Running pass: LoopSimplifyPass
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; CHECK-O-NEXT: Running pass: LCSSAPass
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; CHECK-O-NEXT: Running analysis: ScalarEvolutionAnalysis
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; CHECK-O-NEXT: Running analysis: InnerAnalysisManagerProxy
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; CHECK-O-NEXT: Running pass: LoopInstSimplifyPass
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; CHECK-O-NEXT: Running pass: LoopSimplifyCFGPass
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; CHECK-O-NEXT: Running pass: LICM
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; CHECK-O-NEXT: Running pass: LoopRotatePass
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; CHECK-O-NEXT: Running pass: LICM
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; CHECK-O-NEXT: Running pass: SimpleLoopUnswitchPass
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; CHECK-O-NEXT: Running pass: SimplifyCFGPass
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; CHECK-O-NEXT: Running pass: InstCombinePass
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; CHECK-O-NEXT: Running pass: LoopSimplifyPass
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; CHECK-O-NEXT: Running pass: LCSSAPass
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; CHECK-O-NEXT: Running pass: LoopIdiomRecognizePass
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; CHECK-O-NEXT: Running pass: IndVarSimplifyPass
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; CHECK-O-NEXT: Running pass: LoopDeletionPass
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; CHECK-O-NEXT: Running pass: LoopFullUnrollPass
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; CHECK-O-NEXT: Running pass: SROA on foo
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; CHECK-Os-NEXT: Running pass: MergedLoadStoreMotionPass
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; CHECK-Os-NEXT: Running pass: GVN
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; CHECK-Os-NEXT: Running analysis: MemoryDependenceAnalysis
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; CHECK-Os-NEXT: Running analysis: PhiValuesAnalysis
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; CHECK-Oz-NEXT: Running pass: MergedLoadStoreMotionPass
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; CHECK-Oz-NEXT: Running pass: GVN
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; CHECK-Oz-NEXT: Running analysis: MemoryDependenceAnalysis
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; CHECK-Oz-NEXT: Running analysis: PhiValuesAnalysis
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; CHECK-O2-NEXT: Running pass: MergedLoadStoreMotionPass
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; CHECK-O2-NEXT: Running pass: GVN
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; CHECK-O2-NEXT: Running analysis: MemoryDependenceAnalysis
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; CHECK-O2-NEXT: Running analysis: PhiValuesAnalysis
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; CHECK-O3-NEXT: Running pass: MergedLoadStoreMotionPass
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; CHECK-O3-NEXT: Running pass: GVN
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; CHECK-O3-NEXT: Running analysis: MemoryDependenceAnalysis
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; CHECK-O3-NEXT: Running analysis: PhiValuesAnalysis
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; CHECK-O1-NEXT: Running pass: MemCpyOptPass
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; CHECK-O-NEXT: Running pass: SCCPPass
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; CHECK-O-NEXT: Running pass: BDCEPass
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; CHECK-O-NEXT: Running analysis: DemandedBitsAnalysis
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; CHECK-O-NEXT: Running pass: InstCombinePass
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; CHECK-O23SZ-NEXT: Running pass: JumpThreadingPass
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; CHECK-O23SZ-NEXT: Running analysis: LazyValueAnalysis
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; CHECK-O23SZ-NEXT: Running pass: CorrelatedValuePropagationPass
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; CHECK-O23SZ-NEXT: Invalidating analysis: LazyValueAnalysis
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; CHECK-O-NEXT: Running pass: ADCEPass
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; CHECK-O23SZ-NEXT: Running pass: MemCpyOptPass
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; CHECK-O23SZ-NEXT: Running pass: DSEPass
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; CHECK-O23SZ-NEXT: Running pass: LoopSimplifyPass
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; CHECK-O23SZ-NEXT: Running pass: LCSSAPass
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; CHECK-O23SZ-NEXT: Running pass: LICMPass
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; CHECK-O-NEXT: Running pass: SimplifyCFGPass
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; CHECK-O-NEXT: Running pass: InstCombinePass
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; CHECK-O3-NEXT: Running pass: ControlHeightReductionPass on foo
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; CHECK-O3-NEXT: Running analysis: RegionInfoAnalysis on foo
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; CHECK-O3-NEXT: Running analysis: DominanceFrontierAnalysis on foo
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; CHECK-O-NEXT: Running pass: GlobalOptPass
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; CHECK-O-NEXT: Running pass: GlobalDCEPass
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; CHECK-O-NEXT: Running pass: EliminateAvailableExternallyPass
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; CHECK-O-NEXT: Running pass: ReversePostOrderFunctionAttrsPass
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; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}GlobalsAA
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; CHECK-O-NEXT: Running pass: Float2IntPass
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; CHECK-O-NEXT: Running pass: LowerConstantIntrinsicsPass
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; CHECK-EXT: Running pass: {{.*}}::Bye
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; CHECK-O-NEXT: Running pass: LoopSimplifyPass
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; CHECK-O-NEXT: Running pass: LCSSAPass
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; CHECK-O-NEXT: Running pass: LoopRotatePass
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; CHECK-O-NEXT: Running pass: LoopDistributePass
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; CHECK-O-NEXT: Running pass: InjectTLIMappings
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; CHECK-O-NEXT: Running pass: LoopVectorizePass
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; CHECK-O-NEXT: Running pass: LoopLoadEliminationPass
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; CHECK-O-NEXT: Running analysis: LoopAccessAnalysis
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; CHECK-O-NEXT: Running pass: InstCombinePass
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; CHECK-O-NEXT: Running pass: SimplifyCFGPass
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; CHECK-O2-NEXT: Running pass: SLPVectorizerPass
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; CHECK-O3-NEXT: Running pass: SLPVectorizerPass
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; CHECK-Os-NEXT: Running pass: SLPVectorizerPass
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; CHECK-O-NEXT: Running pass: VectorCombinePass
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; CHECK-O-NEXT: Running pass: InstCombinePass
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; CHECK-O-NEXT: Running pass: LoopUnrollPass
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; CHECK-O-NEXT: Running pass: WarnMissedTransformationsPass
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; CHECK-O-NEXT: Running pass: InstCombinePass
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; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}OptimizationRemarkEmitterAnalysis
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; CHECK-O-NEXT: Running pass: LoopSimplifyPass
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; CHECK-O-NEXT: Running pass: LCSSAPass
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; CHECK-O-NEXT: Running pass: LICMPass
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; CHECK-O-NEXT: Running pass: AlignmentFromAssumptionsPass
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; CHECK-O-NEXT: Running pass: LoopSinkPass
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; CHECK-O-NEXT: Running pass: InstSimplifyPass
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; CHECK-O-NEXT: Running pass: DivRemPairsPass
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; CHECK-O-NEXT: Running pass: SimplifyCFGPass
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; CHECK-O-NEXT: Running pass: CGProfilePass
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; CHECK-O-NEXT: Running pass: GlobalDCEPass
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; CHECK-O-NEXT: Running pass: ConstantMergePass
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; CHECK-O-NEXT: Running pass: RelLookupTableConverterPass
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; CHECK-O-NEXT: Running analysis: TargetIRAnalysis
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; CHECK-O-NEXT: Running pass: AnnotationRemarksPass on foo
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; CHECK-O-NEXT: Running pass: PrintModulePass
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; Make sure we get the IR back out without changes when we print the module.
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; CHECK-O-LABEL: define void @foo(i32 %n) local_unnamed_addr
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; CHECK-O-NEXT: entry:
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; CHECK-O-NEXT: br label %loop
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; CHECK-O: loop:
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; CHECK-O-NEXT: %iv = phi i32 [ 0, %entry ], [ %iv.next, %loop ]
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; CHECK-O-NEXT: %iv.next = add i32 %iv, 1
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; CHECK-O-NEXT: tail call void @bar()
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; CHECK-O-NEXT: %cmp = icmp eq i32 %iv, %n
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; CHECK-O-NEXT: br i1 %cmp, label %exit, label %loop
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; CHECK-O: exit:
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; CHECK-O-NEXT: ret void
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; CHECK-O-NEXT: }
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;
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; Ignore a bunch of intervening metadata containing profile data.
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;
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declare void @bar() local_unnamed_addr
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define void @foo(i32 %n) local_unnamed_addr {
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entry:
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br label %loop
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loop:
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%iv = phi i32 [ 0, %entry ], [ %iv.next, %loop ]
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%iv.next = add i32 %iv, 1
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tail call void @bar()
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%cmp = icmp eq i32 %iv, %n
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br i1 %cmp, label %exit, label %loop
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exit:
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ret void
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}
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