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52610d84ad
This pass interchanges loops to provide a more cache-friendly memory access.
For e.g. given a loop like -
for(int i=0;i<N;i++)
for(int j=0;j<N;j++)
A[j][i] = A[j][i]+B[j][i];
is interchanged to -
for(int j=0;j<N;j++)
for(int i=0;i<N;i++)
A[j][i] = A[j][i]+B[j][i];
This pass is currently disabled by default.
To give a brief introduction it consists of 3 stages-
LoopInterchangeLegality : Checks the legality of loop interchange based on Dependency matrix.
LoopInterchangeProfitability: A very basic heuristic has been added to check for profitibility. This will evolve over time.
LoopInterchangeTransform : Which does the actual transform.
LNT Performance tests shows improvement in Polybench/linear-algebra/kernels/mvt and Polybench/linear-algebra/kernels/gemver becnmarks.
TODO:
1) Add support for reductions and lcssa phi.
2) Improve profitability model.
3) Improve loop selection algorithm to select best loop for interchange. Currently the innermost loop is selected for interchange.
4) Improve compile time regression found in llvm lnt due to this pass.
5) Fix issues in Dependency Analysis module.
A special thanks to Hal for reviewing this code.
Review: http://reviews.llvm.org/D7499
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231458 91177308-0d34-0410-b5e6-96231b3b80d8
301 lines
14 KiB
C++
301 lines
14 KiB
C++
//===- llvm/InitializePasses.h -------- Initialize All Passes ---*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file contains the declarations for the pass initialization routines
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// for the entire LLVM project.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_INITIALIZEPASSES_H
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#define LLVM_INITIALIZEPASSES_H
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namespace llvm {
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class PassRegistry;
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/// initializeCore - Initialize all passes linked into the
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/// TransformUtils library.
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void initializeCore(PassRegistry&);
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/// initializeTransformUtils - Initialize all passes linked into the
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/// TransformUtils library.
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void initializeTransformUtils(PassRegistry&);
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/// initializeScalarOpts - Initialize all passes linked into the
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/// ScalarOpts library.
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void initializeScalarOpts(PassRegistry&);
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/// initializeObjCARCOpts - Initialize all passes linked into the ObjCARCOpts
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/// library.
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void initializeObjCARCOpts(PassRegistry&);
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/// initializeVectorization - Initialize all passes linked into the
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/// Vectorize library.
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void initializeVectorization(PassRegistry&);
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/// initializeInstCombine - Initialize all passes linked into the
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/// InstCombine library.
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void initializeInstCombine(PassRegistry&);
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/// initializeIPO - Initialize all passes linked into the IPO library.
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void initializeIPO(PassRegistry&);
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/// initializeInstrumentation - Initialize all passes linked into the
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/// Instrumentation library.
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void initializeInstrumentation(PassRegistry&);
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/// initializeAnalysis - Initialize all passes linked into the Analysis library.
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void initializeAnalysis(PassRegistry&);
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/// initializeIPA - Initialize all passes linked into the IPA library.
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void initializeIPA(PassRegistry&);
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/// initializeCodeGen - Initialize all passes linked into the CodeGen library.
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void initializeCodeGen(PassRegistry&);
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/// initializeCodeGen - Initialize all passes linked into the CodeGen library.
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void initializeTarget(PassRegistry&);
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void initializeAAEvalPass(PassRegistry&);
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void initializeAddDiscriminatorsPass(PassRegistry&);
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void initializeADCEPass(PassRegistry&);
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void initializeBDCEPass(PassRegistry&);
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void initializeAliasAnalysisAnalysisGroup(PassRegistry&);
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void initializeAliasAnalysisCounterPass(PassRegistry&);
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void initializeAliasDebuggerPass(PassRegistry&);
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void initializeAliasSetPrinterPass(PassRegistry&);
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void initializeAlwaysInlinerPass(PassRegistry&);
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void initializeArgPromotionPass(PassRegistry&);
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void initializeAtomicExpandPass(PassRegistry&);
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void initializeSampleProfileLoaderPass(PassRegistry&);
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void initializeAlignmentFromAssumptionsPass(PassRegistry&);
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void initializeBarrierNoopPass(PassRegistry&);
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void initializeBasicAliasAnalysisPass(PassRegistry&);
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void initializeCallGraphWrapperPassPass(PassRegistry &);
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void initializeBlockExtractorPassPass(PassRegistry&);
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void initializeBlockFrequencyInfoPass(PassRegistry&);
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void initializeBoundsCheckingPass(PassRegistry&);
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void initializeBranchFolderPassPass(PassRegistry&);
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void initializeBranchProbabilityInfoPass(PassRegistry&);
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void initializeBreakCriticalEdgesPass(PassRegistry&);
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void initializeCallGraphPrinterPass(PassRegistry&);
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void initializeCallGraphViewerPass(PassRegistry&);
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void initializeCFGOnlyPrinterPass(PassRegistry&);
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void initializeCFGOnlyViewerPass(PassRegistry&);
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void initializeCFGPrinterPass(PassRegistry&);
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void initializeCFGSimplifyPassPass(PassRegistry&);
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void initializeCFLAliasAnalysisPass(PassRegistry&);
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void initializeForwardControlFlowIntegrityPass(PassRegistry&);
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void initializeFlattenCFGPassPass(PassRegistry&);
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void initializeStructurizeCFGPass(PassRegistry&);
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void initializeCFGViewerPass(PassRegistry&);
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void initializeConstantHoistingPass(PassRegistry&);
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void initializeCodeGenPreparePass(PassRegistry&);
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void initializeConstantMergePass(PassRegistry&);
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void initializeConstantPropagationPass(PassRegistry&);
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void initializeMachineCopyPropagationPass(PassRegistry&);
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void initializeCostModelAnalysisPass(PassRegistry&);
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void initializeCorrelatedValuePropagationPass(PassRegistry&);
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void initializeDAEPass(PassRegistry&);
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void initializeDAHPass(PassRegistry&);
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void initializeDCEPass(PassRegistry&);
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void initializeDSEPass(PassRegistry&);
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void initializeDebugInfoVerifierLegacyPassPass(PassRegistry &);
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void initializeDeadInstEliminationPass(PassRegistry&);
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void initializeDeadMachineInstructionElimPass(PassRegistry&);
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void initializeDelinearizationPass(PassRegistry &);
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void initializeDependenceAnalysisPass(PassRegistry&);
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void initializeDomOnlyPrinterPass(PassRegistry&);
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void initializeDomOnlyViewerPass(PassRegistry&);
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void initializeDomPrinterPass(PassRegistry&);
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void initializeDomViewerPass(PassRegistry&);
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void initializeDominanceFrontierPass(PassRegistry&);
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void initializeDominatorTreeWrapperPassPass(PassRegistry&);
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void initializeEarlyIfConverterPass(PassRegistry&);
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void initializeEdgeBundlesPass(PassRegistry&);
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void initializeExpandPostRAPass(PassRegistry&);
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void initializeGCOVProfilerPass(PassRegistry&);
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void initializeInstrProfilingPass(PassRegistry&);
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void initializeAddressSanitizerPass(PassRegistry&);
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void initializeAddressSanitizerModulePass(PassRegistry&);
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void initializeMemorySanitizerPass(PassRegistry&);
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void initializeThreadSanitizerPass(PassRegistry&);
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void initializeSanitizerCoverageModulePass(PassRegistry&);
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void initializeDataFlowSanitizerPass(PassRegistry&);
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void initializeScalarizerPass(PassRegistry&);
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void initializeEarlyCSELegacyPassPass(PassRegistry &);
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void initializeExpandISelPseudosPass(PassRegistry&);
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void initializeFunctionAttrsPass(PassRegistry&);
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void initializeGCMachineCodeAnalysisPass(PassRegistry&);
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void initializeGCModuleInfoPass(PassRegistry&);
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void initializeGVNPass(PassRegistry&);
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void initializeGlobalDCEPass(PassRegistry&);
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void initializeGlobalOptPass(PassRegistry&);
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void initializeGlobalsModRefPass(PassRegistry&);
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void initializeIPCPPass(PassRegistry&);
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void initializeIPSCCPPass(PassRegistry&);
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void initializeIVUsersPass(PassRegistry&);
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void initializeIfConverterPass(PassRegistry&);
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void initializeInductiveRangeCheckEliminationPass(PassRegistry&);
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void initializeIndVarSimplifyPass(PassRegistry&);
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void initializeInlineCostAnalysisPass(PassRegistry&);
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void initializeInstructionCombiningPassPass(PassRegistry&);
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void initializeInstCountPass(PassRegistry&);
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void initializeInstNamerPass(PassRegistry&);
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void initializeInternalizePassPass(PassRegistry&);
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void initializeIntervalPartitionPass(PassRegistry&);
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void initializeJumpThreadingPass(PassRegistry&);
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void initializeLCSSAPass(PassRegistry&);
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void initializeLICMPass(PassRegistry&);
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void initializeLazyValueInfoPass(PassRegistry&);
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void initializeLibCallAliasAnalysisPass(PassRegistry&);
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void initializeLintPass(PassRegistry&);
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void initializeLiveDebugVariablesPass(PassRegistry&);
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void initializeLiveIntervalsPass(PassRegistry&);
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void initializeLiveRegMatrixPass(PassRegistry&);
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void initializeLiveStacksPass(PassRegistry&);
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void initializeLiveVariablesPass(PassRegistry&);
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void initializeLoaderPassPass(PassRegistry&);
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void initializeLocalStackSlotPassPass(PassRegistry&);
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void initializeLoopDeletionPass(PassRegistry&);
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void initializeLoopExtractorPass(PassRegistry&);
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void initializeLoopInfoWrapperPassPass(PassRegistry&);
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void initializeLoopInterchangePass(PassRegistry &);
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void initializeLoopInstSimplifyPass(PassRegistry&);
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void initializeLoopRotatePass(PassRegistry&);
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void initializeLoopSimplifyPass(PassRegistry&);
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void initializeLoopStrengthReducePass(PassRegistry&);
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void initializeGlobalMergePass(PassRegistry&);
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void initializeLoopRerollPass(PassRegistry&);
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void initializeLoopUnrollPass(PassRegistry&);
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void initializeLoopUnswitchPass(PassRegistry&);
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void initializeLoopIdiomRecognizePass(PassRegistry&);
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void initializeLowerAtomicPass(PassRegistry&);
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void initializeLowerBitSetsPass(PassRegistry&);
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void initializeLowerExpectIntrinsicPass(PassRegistry&);
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void initializeLowerIntrinsicsPass(PassRegistry&);
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void initializeLowerInvokePass(PassRegistry&);
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void initializeLowerSwitchPass(PassRegistry&);
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void initializeMachineBlockFrequencyInfoPass(PassRegistry&);
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void initializeMachineBlockPlacementPass(PassRegistry&);
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void initializeMachineBlockPlacementStatsPass(PassRegistry&);
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void initializeMachineBranchProbabilityInfoPass(PassRegistry&);
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void initializeMachineCSEPass(PassRegistry&);
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void initializeMachineDominatorTreePass(PassRegistry&);
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void initializeMachineDominanceFrontierPass(PassRegistry&);
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void initializeMachinePostDominatorTreePass(PassRegistry&);
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void initializeMachineLICMPass(PassRegistry&);
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void initializeMachineLoopInfoPass(PassRegistry&);
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void initializeMachineModuleInfoPass(PassRegistry&);
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void initializeMachineRegionInfoPassPass(PassRegistry&);
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void initializeMachineSchedulerPass(PassRegistry&);
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void initializeMachineSinkingPass(PassRegistry&);
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void initializeMachineTraceMetricsPass(PassRegistry&);
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void initializeMachineVerifierPassPass(PassRegistry&);
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void initializeMemCpyOptPass(PassRegistry&);
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void initializeMemDepPrinterPass(PassRegistry&);
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void initializeMemDerefPrinterPass(PassRegistry&);
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void initializeMemoryDependenceAnalysisPass(PassRegistry&);
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void initializeMergedLoadStoreMotionPass(PassRegistry &);
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void initializeMetaRenamerPass(PassRegistry&);
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void initializeMergeFunctionsPass(PassRegistry&);
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void initializeModuleDebugInfoPrinterPass(PassRegistry&);
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void initializeNoAAPass(PassRegistry&);
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void initializeObjCARCAliasAnalysisPass(PassRegistry&);
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void initializeObjCARCAPElimPass(PassRegistry&);
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void initializeObjCARCExpandPass(PassRegistry&);
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void initializeObjCARCContractPass(PassRegistry&);
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void initializeObjCARCOptPass(PassRegistry&);
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void initializePAEvalPass(PassRegistry &);
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void initializeOptimizePHIsPass(PassRegistry&);
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void initializePartiallyInlineLibCallsPass(PassRegistry&);
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void initializePEIPass(PassRegistry&);
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void initializePHIEliminationPass(PassRegistry&);
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void initializePartialInlinerPass(PassRegistry&);
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void initializePeepholeOptimizerPass(PassRegistry&);
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void initializePostDomOnlyPrinterPass(PassRegistry&);
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void initializePostDomOnlyViewerPass(PassRegistry&);
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void initializePostDomPrinterPass(PassRegistry&);
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void initializePostDomViewerPass(PassRegistry&);
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void initializePostDominatorTreePass(PassRegistry&);
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void initializePostRASchedulerPass(PassRegistry&);
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void initializePostMachineSchedulerPass(PassRegistry&);
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void initializePrintFunctionPassWrapperPass(PassRegistry&);
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void initializePrintModulePassWrapperPass(PassRegistry&);
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void initializePrintBasicBlockPassPass(PassRegistry&);
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void initializeProcessImplicitDefsPass(PassRegistry&);
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void initializePromotePassPass(PassRegistry&);
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void initializePruneEHPass(PassRegistry&);
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void initializeReassociatePass(PassRegistry&);
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void initializeRegToMemPass(PassRegistry&);
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void initializeRegionInfoPassPass(PassRegistry&);
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void initializeRegionOnlyPrinterPass(PassRegistry&);
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void initializeRegionOnlyViewerPass(PassRegistry&);
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void initializeRegionPrinterPass(PassRegistry&);
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void initializeRegionViewerPass(PassRegistry&);
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void initializeRewriteStatepointsForGCPass(PassRegistry&);
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void initializeSCCPPass(PassRegistry&);
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void initializeSROAPass(PassRegistry&);
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void initializeSROA_DTPass(PassRegistry&);
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void initializeSROA_SSAUpPass(PassRegistry&);
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void initializeScalarEvolutionAliasAnalysisPass(PassRegistry&);
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void initializeScalarEvolutionPass(PassRegistry&);
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void initializeSimpleInlinerPass(PassRegistry&);
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void initializeShadowStackGCLoweringPass(PassRegistry&);
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void initializeRegisterCoalescerPass(PassRegistry&);
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void initializeSingleLoopExtractorPass(PassRegistry&);
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void initializeSinkingPass(PassRegistry&);
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void initializeSeparateConstOffsetFromGEPPass(PassRegistry &);
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void initializeSlotIndexesPass(PassRegistry&);
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void initializeSpillPlacementPass(PassRegistry&);
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void initializeStackProtectorPass(PassRegistry&);
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void initializeStackColoringPass(PassRegistry&);
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void initializeStackSlotColoringPass(PassRegistry&);
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void initializeStraightLineStrengthReducePass(PassRegistry &);
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void initializeStripDeadDebugInfoPass(PassRegistry&);
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void initializeStripDeadPrototypesPassPass(PassRegistry&);
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void initializeStripDebugDeclarePass(PassRegistry&);
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void initializeStripNonDebugSymbolsPass(PassRegistry&);
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void initializeStripSymbolsPass(PassRegistry&);
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void initializeTailCallElimPass(PassRegistry&);
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void initializeTailDuplicatePassPass(PassRegistry&);
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void initializeTargetPassConfigPass(PassRegistry&);
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void initializeDataLayoutPassPass(PassRegistry &);
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void initializeTargetTransformInfoWrapperPassPass(PassRegistry &);
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void initializeTargetLibraryInfoWrapperPassPass(PassRegistry &);
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void initializeAssumptionCacheTrackerPass(PassRegistry &);
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void initializeTwoAddressInstructionPassPass(PassRegistry&);
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void initializeTypeBasedAliasAnalysisPass(PassRegistry&);
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void initializeScopedNoAliasAAPass(PassRegistry&);
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void initializeUnifyFunctionExitNodesPass(PassRegistry&);
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void initializeUnreachableBlockElimPass(PassRegistry&);
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void initializeUnreachableMachineBlockElimPass(PassRegistry&);
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void initializeVerifierLegacyPassPass(PassRegistry&);
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void initializeVirtRegMapPass(PassRegistry&);
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void initializeVirtRegRewriterPass(PassRegistry&);
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void initializeInstSimplifierPass(PassRegistry&);
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void initializeUnpackMachineBundlesPass(PassRegistry&);
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void initializeFinalizeMachineBundlesPass(PassRegistry&);
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void initializeLoopAccessAnalysisPass(PassRegistry&);
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void initializeLoopVectorizePass(PassRegistry&);
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void initializeSLPVectorizerPass(PassRegistry&);
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void initializeBBVectorizePass(PassRegistry&);
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void initializeMachineFunctionPrinterPassPass(PassRegistry&);
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void initializeStackMapLivenessPass(PassRegistry&);
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void initializeMachineCombinerPass(PassRegistry &);
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void initializeLoadCombinePass(PassRegistry&);
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void initializeRewriteSymbolsPass(PassRegistry&);
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void initializeWinEHPreparePass(PassRegistry&);
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void initializePlaceBackedgeSafepointsImplPass(PassRegistry&);
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void initializePlaceSafepointsPass(PassRegistry&);
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void initializeDwarfEHPreparePass(PassRegistry&);
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}
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#endif
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