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ae08f299bd
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
278 lines
15 KiB
LLVM
278 lines
15 KiB
LLVM
; The IR below was crafted so as:
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; 1) To have a loop, so we create a loop pass manager
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; 2) To be "immutable" in the sense that no pass in the standard
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; pipeline will modify it.
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; Since no transformations take place, we don't expect any analyses
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; to be invalidated.
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; Any invalidation that shows up here is a bug, unless we started modifying
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; the IR, in which case we need to make it immutable harder.
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;
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; Prelink pipelines:
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; RUN: opt -disable-verify -debug-pass-manager \
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; RUN: -passes='thinlto-pre-link<O1>,name-anon-globals' -S %s 2>&1 \
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; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-O1,CHECK-PRELINK-O,CHECK-PRELINK-O-NODIS,CHECK-PRELINK-O1
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; RUN: opt -disable-verify -debug-pass-manager \
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; RUN: -passes='thinlto-pre-link<O2>,name-anon-globals' -S %s 2>&1 \
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; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-O2,CHECK-O23SZ,CHECK-PRELINK-O,CHECK-PRELINK-O-NODIS,CHECK-PRELINK-O2
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; RUN: opt -disable-verify -debug-pass-manager \
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; RUN: -passes='thinlto-pre-link<O3>,name-anon-globals' -S -passes-ep-pipeline-start='no-op-module' %s 2>&1 \
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; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-O3,CHECK-O23SZ,CHECK-PRELINK-O,CHECK-PRELINK-O-NODIS,CHECK-PRELINK-O3,CHECK-EP-PIPELINE-START
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; RUN: opt -disable-verify -debug-pass-manager \
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; RUN: -passes='thinlto-pre-link<Os>,name-anon-globals' -S %s 2>&1 \
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; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-Os,CHECK-O23SZ,CHECK-PRELINK-O,CHECK-PRELINK-O-NODIS,CHECK-PRELINK-Os
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; RUN: opt -disable-verify -debug-pass-manager \
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; RUN: -passes='thinlto-pre-link<Oz>,name-anon-globals' -S %s 2>&1 \
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; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-Oz,CHECK-O23SZ,CHECK-PRELINK-O,CHECK-PRELINK-O-NODIS,CHECK-PRELINK-Oz
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; RUN: opt -disable-verify -debug-pass-manager -new-pm-debug-info-for-profiling \
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; RUN: -passes='thinlto-pre-link<O2>,name-anon-globals' -S %s 2>&1 \
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; RUN: | FileCheck %s --check-prefixes=CHECK-DIS,CHECK-O,CHECK-O2,CHECK-O23SZ,CHECK-PRELINK-O,CHECK-PRELINK-O2
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;
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; Postlink pipelines:
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; RUN: opt -disable-verify -debug-pass-manager \
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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,CHECK-POSTLINK-O,%llvmcheckext,CHECK-POSTLINK-O1
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; RUN: opt -disable-verify -debug-pass-manager \
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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,CHECK-POSTLINK-O,%llvmcheckext,CHECK-POSTLINK-O2
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; RUN: opt -disable-verify -debug-pass-manager -passes-ep-pipeline-start='no-op-module' \
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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,CHECK-POSTLINK-O,%llvmcheckext,CHECK-POSTLINK-O3
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; RUN: opt -disable-verify -debug-pass-manager \
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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,CHECK-POSTLINK-O,%llvmcheckext,CHECK-POSTLINK-Os
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; RUN: opt -disable-verify -debug-pass-manager \
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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,CHECK-POSTLINK-O,%llvmcheckext,CHECK-POSTLINK-Oz
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; RUN: opt -disable-verify -debug-pass-manager -new-pm-debug-info-for-profiling \
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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,CHECK-POSTLINK-O,%llvmcheckext,CHECK-POSTLINK-O2
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;
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; CHECK-O: Starting llvm::Module pass manager run.
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; CHECK-O-NEXT: Starting llvm::Module pass manager run.
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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-DIS-NEXT: Running analysis: InnerAnalysisManagerProxy
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; CHECK-DIS-NEXT: Running pass: AddDiscriminatorsPass
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; CHECK-O-NEXT: Starting llvm::Module pass manager run.
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; CHECK-POSTLINK-O-NEXT: Running pass: PGOIndirectCallPromotion
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; CHECK-POSTLINK-O-NEXT: Running analysis: ProfileSummaryAnalysis
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; CHECK-POSTLINK-O-NEXT: Running analysis: InnerAnalysisManagerProxy
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; CHECK-POSTLINK-O-NEXT: Running analysis: OptimizationRemarkEmitterAnalysis
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; CHECK-O-NEXT: Running pass: InferFunctionAttrsPass
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; CHECK-PRELINK-O-NODIS-NEXT: Running analysis: InnerAnalysisManagerProxy
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; CHECK-O-NEXT: Running analysis: TargetLibraryAnalysis
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; CHECK-O-NEXT: Starting llvm::Function pass manager run.
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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-O-NEXT: Running pass: LowerExpectIntrinsicPass
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; CHECK-O3-NEXT: Running pass: CallSiteSplittingPass
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; CHECK-O-NEXT: Finished llvm::Function pass manager run.
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; CHECK-POSTLINK-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: Starting llvm::Function pass manager run.
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; CHECK-O-NEXT: Running pass: InstCombinePass
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; CHECK-PRELINK-O-NEXT: Running analysis: OptimizationRemarkEmitterAnalysis
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; CHECK-O-NEXT: Running analysis: AAManager
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; CHECK-O-NEXT: Running analysis: OuterAnalysisManagerProxy
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; CHECK-O-NEXT: Running pass: SimplifyCFGPass
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; CHECK-O-NEXT: Finished llvm::Function pass manager run.
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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: Starting llvm::Module pass manager run.
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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 analysis: CallGraphAnalysis
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; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}ProfileSummaryAnalysis
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; CHECK-PRELINK-O-NEXT: Running analysis: 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: Starting CGSCC pass manager run.
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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-O3-NEXT: Running pass: ArgumentPromotionPass
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; CHECK-O2-NEXT: Running pass: OpenMPOptPass on (foo)
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; CHECK-O3-NEXT: Running pass: OpenMPOptPass on (foo)
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; CHECK-O-NEXT: Starting llvm::Function pass manager run.
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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: Starting llvm::Function pass manager run
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; CHECK-O-NEXT: Running pass: LoopSimplifyPass
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; CHECK-O-NEXT: Running analysis: LoopAnalysis
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; CHECK-O-NEXT: Running pass: LCSSAPass
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; CHECK-O-NEXT: Finished llvm::Function pass manager run
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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: Starting Loop pass manager run.
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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: 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: Finished Loop pass manager run.
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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: Starting llvm::Function pass manager run
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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: Finished llvm::Function pass manager run
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; CHECK-O-NEXT: Starting Loop pass manager run.
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; CHECK-O-NEXT: Running pass: IndVarSimplifyPass
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; CHECK-O-NEXT: Running pass: LoopIdiomRecognizePass
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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: Finished Loop pass manager run.
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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-O-NEXT: Running pass: MemCpyOptPass
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; CHECK-O1-NEXT: Running analysis: MemoryDependenceAnalysis
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; CHECK-O1-NEXT: Running analysis: PhiValuesAnalysis
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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-O23SZ-NEXT: Running pass: DSEPass
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; CHECK-O23SZ-NEXT: Starting llvm::Function pass manager run
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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: Finished llvm::Function pass manager run
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; CHECK-O23SZ-NEXT: Running pass: LICMPass on Loop at depth 1 containing: %loop
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; CHECK-O-NEXT: Running pass: ADCEPass
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; CHECK-O-NEXT: Running analysis: PostDominatorTreeAnalysis
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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: Finished llvm::Function pass manager run.
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; CHECK-O-NEXT: Finished CGSCC pass manager run.
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; CHECK-O-NEXT: Finished llvm::Module pass manager run.
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; CHECK-O-NEXT: Finished llvm::Module pass manager run.
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; CHECK-PRELINK-O-NEXT: Running pass: GlobalOptPass
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; CHECK-POSTLINK-O-NEXT: Starting llvm::Module pass manager run.
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; CHECK-POSTLINK-O-NEXT: Running pass: GlobalOptPass
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; CHECK-POSTLINK-O-NEXT: Running pass: GlobalDCEPass
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; CHECK-POSTLINK-O-NEXT: Running pass: EliminateAvailableExternallyPass
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; CHECK-POSTLINK-O-NEXT: Running pass: ReversePostOrderFunctionAttrsPass
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; CHECK-POSTLINK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}GlobalsAA
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; CHECK-POSTLINK-O-NEXT: Starting llvm::Function pass manager run.
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; CHECK-POSTLINK-O-NEXT: Running pass: Float2IntPass
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; CHECK-POSTLINK-O-NEXT: Running pass: LowerConstantIntrinsicsPass
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; CHECK-EXT: Running pass: {{.*}}::Bye
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; CHECK-POSTLINK-O-NEXT: Starting llvm::Function pass manager run
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; CHECK-POSTLINK-O-NEXT: Running pass: LoopSimplifyPass
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; CHECK-POSTLINK-O-NEXT: Running pass: LCSSAPass
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; CHECK-POSTLINK-O-NEXT: Finished llvm::Function pass manager run
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; CHECK-POSTLINK-O-NEXT: Running pass: LoopRotatePass
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; CHECK-POSTLINK-O-NEXT: Running pass: LoopDistributePass
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; CHECK-POSTLINK-O-NEXT: Running pass: InjectTLIMappings
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; CHECK-POSTLINK-O-NEXT: Running pass: LoopVectorizePass
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; CHECK-POSTLINK-O-NEXT: Running analysis: BlockFrequencyAnalysis
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; CHECK-POSTLINK-O-NEXT: Running analysis: BranchProbabilityAnalysis
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; CHECK-POSTLINK-O-NEXT: Running pass: LoopLoadEliminationPass
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; CHECK-POSTLINK-O-NEXT: Running analysis: LoopAccessAnalysis
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; CHECK-POSTLINK-O-NEXT: Running pass: InstCombinePass
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; CHECK-POSTLINK-O-NEXT: Running pass: SimplifyCFGPass
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; CHECK-POSTLINK-O2-NEXT: Running pass: SLPVectorizerPass
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; CHECK-POSTLINK-O3-NEXT: Running pass: SLPVectorizerPass
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; CHECK-POSTLINK-Os-NEXT: Running pass: SLPVectorizerPass
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; CHECK-POSTLINK-O-NEXT: Running pass: VectorCombinePass
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; CHECK-POSTLINK-O-NEXT: Running pass: InstCombinePass
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; CHECK-POSTLINK-O-NEXT: Running pass: LoopUnrollPass
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; CHECK-POSTLINK-O-NEXT: Running pass: WarnMissedTransformationsPass
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; CHECK-POSTLINK-O-NEXT: Running pass: InstCombinePass
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; CHECK-POSTLINK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}OptimizationRemarkEmitterAnalysis
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; CHECK-POSTLINK-O-NEXT: Starting llvm::Function pass manager run
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; CHECK-POSTLINK-O-NEXT: Running pass: LoopSimplifyPass
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; CHECK-POSTLINK-O-NEXT: Running pass: LCSSAPass
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; CHECK-POSTLINK-O-NEXT: Finished llvm::Function pass manager run
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; CHECK-POSTLINK-O-NEXT: Running pass: LICMPass
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; CHECK-POSTLINK-O-NEXT: Running pass: AlignmentFromAssumptionsPass
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; CHECK-POSTLINK-O-NEXT: Running pass: LoopSinkPass
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; CHECK-POSTLINK-O-NEXT: Running pass: InstSimplifyPass
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; CHECK-POSTLINK-O-NEXT: Running pass: DivRemPairsPass
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; CHECK-POSTLINK-O-NEXT: Running pass: SimplifyCFGPass
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; CHECK-POSTLINK-O-NEXT: Running pass: SpeculateAroundPHIsPass
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; CHECK-POSTLINK-O-NEXT: Finished llvm::Function pass manager run.
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; CHECK-POSTLINK-O-NEXT: Running pass: CGProfilePass
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; CHECK-POSTLINK-O-NEXT: Running pass: GlobalDCEPass
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; CHECK-POSTLINK-O-NEXT: Running pass: ConstantMergePass
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; CHECK-POSTLINK-O-NEXT: Finished llvm::Module pass manager run.
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; CHECK-O-NEXT: Finished llvm::Module pass manager run.
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; CHECK-PRELINK-O-NEXT: Running pass: NameAnonGlobalPass
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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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; CHECK-O-NEXT: Finished llvm::Module pass manager run.
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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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