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a2385db150
llvm-mirror/include/llvm/InitializePasses.h
Fiona Glaser a2385db150 Add LoopSimplifyCFG pass 
Loop transformations can sometimes fail because the loop, while in
valid rotated LCSSA form, is not in a canonical CFG form. This is
an extremely simple pass that just merges obviously redundant
blocks, which can be used to fix some known failure cases. In the
future, it may be enhanced with more cases (and have code shared with
SimplifyCFG).

This allows us to run LoopSimplifyCFG -> LoopRotate -> LoopUnroll,
so that SimplifyCFG cleans up the loop before Rotate tries to run.

Not currently used in the pass manager, since this pass doesn't do
anything unless you can hook it up in an LPM with other loop passes.
It'll be added once Chandler cleans up things to allow this.

Tested in a custom pipeline out of tree to confirm it works in
practice (in addition to the included trivial test).

llvm-svn: 259256
2016-01-29 22:35:36 +00:00

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//===- llvm/InitializePasses.h -------- Initialize All Passes ---*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file contains the declarations for the pass initialization routines
// for the entire LLVM project.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_INITIALIZEPASSES_H
#define LLVM_INITIALIZEPASSES_H
namespace llvm {
class PassRegistry;
/// initializeCore - Initialize all passes linked into the
/// TransformUtils library.
void initializeCore(PassRegistry&);
/// initializeTransformUtils - Initialize all passes linked into the
/// TransformUtils library.
void initializeTransformUtils(PassRegistry&);
/// initializeScalarOpts - Initialize all passes linked into the
/// ScalarOpts library.
void initializeScalarOpts(PassRegistry&);
/// initializeObjCARCOpts - Initialize all passes linked into the ObjCARCOpts
/// library.
void initializeObjCARCOpts(PassRegistry&);
/// initializeVectorization - Initialize all passes linked into the
/// Vectorize library.
void initializeVectorization(PassRegistry&);
/// initializeInstCombine - Initialize all passes linked into the
/// InstCombine library.
void initializeInstCombine(PassRegistry&);
/// initializeIPO - Initialize all passes linked into the IPO library.
void initializeIPO(PassRegistry&);
/// initializeInstrumentation - Initialize all passes linked into the
/// Instrumentation library.
void initializeInstrumentation(PassRegistry&);
/// initializeAnalysis - Initialize all passes linked into the Analysis library.
void initializeAnalysis(PassRegistry&);
/// initializeCodeGen - Initialize all passes linked into the CodeGen library.
void initializeCodeGen(PassRegistry&);
/// initializeCodeGen - Initialize all passes linked into the CodeGen library.
void initializeTarget(PassRegistry&);
void initializeAAEvalPass(PassRegistry&);
void initializeAddDiscriminatorsPass(PassRegistry&);
void initializeADCELegacyPassPass(PassRegistry&);
void initializeBDCEPass(PassRegistry&);
void initializeAliasSetPrinterPass(PassRegistry&);
void initializeAlwaysInlinerPass(PassRegistry&);
void initializeArgPromotionPass(PassRegistry&);
void initializeAtomicExpandPass(PassRegistry&);
void initializeSampleProfileLoaderPass(PassRegistry&);
void initializeAlignmentFromAssumptionsPass(PassRegistry&);
void initializeBarrierNoopPass(PassRegistry&);
void initializeBasicAAWrapperPassPass(PassRegistry&);
void initializeCallGraphWrapperPassPass(PassRegistry &);
void initializeBlockExtractorPassPass(PassRegistry&);
void initializeBlockFrequencyInfoWrapperPassPass(PassRegistry&);
void initializeBoundsCheckingPass(PassRegistry&);
void initializeBranchFolderPassPass(PassRegistry&);
void initializeBranchProbabilityInfoWrapperPassPass(PassRegistry&);
void initializeBreakCriticalEdgesPass(PassRegistry&);
void initializeCallGraphPrinterPass(PassRegistry&);
void initializeCallGraphViewerPass(PassRegistry&);
void initializeCFGOnlyPrinterPass(PassRegistry&);
void initializeCFGOnlyViewerPass(PassRegistry&);
void initializeCFGPrinterPass(PassRegistry&);
void initializeCFGSimplifyPassPass(PassRegistry&);
void initializeCFLAAWrapperPassPass(PassRegistry&);
void initializeExternalAAWrapperPassPass(PassRegistry&);
void initializeForwardControlFlowIntegrityPass(PassRegistry&);
void initializeFlattenCFGPassPass(PassRegistry&);
void initializeStructurizeCFGPass(PassRegistry&);
void initializeCFGViewerPass(PassRegistry&);
void initializeConstantHoistingPass(PassRegistry&);
void initializeCodeGenPreparePass(PassRegistry&);
void initializeConstantMergePass(PassRegistry&);
void initializeConstantPropagationPass(PassRegistry&);
void initializeMachineCopyPropagationPass(PassRegistry&);
void initializeCostModelAnalysisPass(PassRegistry&);
void initializeCorrelatedValuePropagationPass(PassRegistry&);
void initializeCrossDSOCFIPass(PassRegistry&);
void initializeDAEPass(PassRegistry&);
void initializeDAHPass(PassRegistry&);
void initializeDCEPass(PassRegistry&);
void initializeDSEPass(PassRegistry&);
void initializeDeadInstEliminationPass(PassRegistry&);
void initializeDeadMachineInstructionElimPass(PassRegistry&);
void initializeDelinearizationPass(PassRegistry &);
void initializeDependenceAnalysisPass(PassRegistry&);
void initializeDivergenceAnalysisPass(PassRegistry&);
void initializeDomOnlyPrinterPass(PassRegistry&);
void initializeDomOnlyViewerPass(PassRegistry&);
void initializeDomPrinterPass(PassRegistry&);
void initializeDomViewerPass(PassRegistry&);
void initializeDominanceFrontierPass(PassRegistry&);
void initializeDominatorTreeWrapperPassPass(PassRegistry&);
void initializeEarlyIfConverterPass(PassRegistry&);
void initializeEdgeBundlesPass(PassRegistry&);
void initializeExpandPostRAPass(PassRegistry&);
void initializeAAResultsWrapperPassPass(PassRegistry &);
void initializeGCOVProfilerPass(PassRegistry&);
void initializePGOInstrumentationGenPass(PassRegistry&);
void initializePGOInstrumentationUsePass(PassRegistry&);
void initializeInstrProfilingPass(PassRegistry&);
void initializeAddressSanitizerPass(PassRegistry&);
void initializeAddressSanitizerModulePass(PassRegistry&);
void initializeMemorySanitizerPass(PassRegistry&);
void initializeThreadSanitizerPass(PassRegistry&);
void initializeSanitizerCoverageModulePass(PassRegistry&);
void initializeDataFlowSanitizerPass(PassRegistry&);
void initializeScalarizerPass(PassRegistry&);
void initializeEarlyCSELegacyPassPass(PassRegistry &);
void initializeEliminateAvailableExternallyPass(PassRegistry&);
void initializeExpandISelPseudosPass(PassRegistry&);
void initializeForceFunctionAttrsLegacyPassPass(PassRegistry&);
void initializeGCMachineCodeAnalysisPass(PassRegistry&);
void initializeGCModuleInfoPass(PassRegistry&);
void initializeGVNPass(PassRegistry&);
void initializeGlobalDCEPass(PassRegistry&);
void initializeGlobalOptPass(PassRegistry&);
void initializeGlobalsAAWrapperPassPass(PassRegistry&);
void initializeIPCPPass(PassRegistry&);
void initializeIPSCCPPass(PassRegistry&);
void initializeIVUsersPass(PassRegistry&);
void initializeIfConverterPass(PassRegistry&);
void initializeInductiveRangeCheckEliminationPass(PassRegistry&);
void initializeIndVarSimplifyPass(PassRegistry&);
void initializeInferFunctionAttrsLegacyPassPass(PassRegistry&);
void initializeInlineCostAnalysisPass(PassRegistry&);
void initializeInstructionCombiningPassPass(PassRegistry&);
void initializeInstCountPass(PassRegistry&);
void initializeInstNamerPass(PassRegistry&);
void initializeInternalizePassPass(PassRegistry&);
void initializeIntervalPartitionPass(PassRegistry&);
void initializeJumpThreadingPass(PassRegistry&);
void initializeLCSSAPass(PassRegistry&);
void initializeLICMPass(PassRegistry&);
void initializeLazyValueInfoPass(PassRegistry&);
void initializeLintPass(PassRegistry&);
void initializeLiveDebugVariablesPass(PassRegistry&);
void initializeLiveIntervalsPass(PassRegistry&);
void initializeLiveRegMatrixPass(PassRegistry&);
void initializeLiveStacksPass(PassRegistry&);
void initializeLiveVariablesPass(PassRegistry&);
void initializeLoaderPassPass(PassRegistry&);
void initializeLocalStackSlotPassPass(PassRegistry&);
void initializeLoopDeletionPass(PassRegistry&);
void initializeLoopExtractorPass(PassRegistry&);
void initializeLoopInfoWrapperPassPass(PassRegistry&);
void initializeLoopInterchangePass(PassRegistry &);
void initializeLoopInstSimplifyPass(PassRegistry&);
void initializeLoopRotatePass(PassRegistry&);
void initializeLoopSimplifyPass(PassRegistry&);
void initializeLoopSimplifyCFGPass(PassRegistry&);
void initializeLoopStrengthReducePass(PassRegistry&);
void initializeGlobalMergePass(PassRegistry&);
void initializeLoopRerollPass(PassRegistry&);
void initializeLoopUnrollPass(PassRegistry&);
void initializeLoopUnswitchPass(PassRegistry&);
void initializeLoopIdiomRecognizePass(PassRegistry&);
void initializeLowerAtomicPass(PassRegistry&);
void initializeLowerBitSetsPass(PassRegistry&);
void initializeLowerExpectIntrinsicPass(PassRegistry&);
void initializeLowerIntrinsicsPass(PassRegistry&);
void initializeLowerInvokePass(PassRegistry&);
void initializeLowerSwitchPass(PassRegistry&);
void initializeLowerEmuTLSPass(PassRegistry&);
void initializeMachineBlockFrequencyInfoPass(PassRegistry&);
void initializeMachineBlockPlacementPass(PassRegistry&);
void initializeMachineBlockPlacementStatsPass(PassRegistry&);
void initializeMachineBranchProbabilityInfoPass(PassRegistry&);
void initializeMachineCSEPass(PassRegistry&);
void initializeImplicitNullChecksPass(PassRegistry&);
void initializeMachineDominatorTreePass(PassRegistry&);
void initializeMachineDominanceFrontierPass(PassRegistry&);
void initializeMachinePostDominatorTreePass(PassRegistry&);
void initializeMachineLICMPass(PassRegistry&);
void initializeMachineLoopInfoPass(PassRegistry&);
void initializeMachineModuleInfoPass(PassRegistry&);
void initializeMachineRegionInfoPassPass(PassRegistry&);
void initializeMachineSchedulerPass(PassRegistry&);
void initializeMachineSinkingPass(PassRegistry&);
void initializeMachineTraceMetricsPass(PassRegistry&);
void initializeMachineVerifierPassPass(PassRegistry&);
void initializeMemCpyOptPass(PassRegistry&);
void initializeMemDepPrinterPass(PassRegistry&);
void initializeMemDerefPrinterPass(PassRegistry&);
void initializeMemoryDependenceAnalysisPass(PassRegistry&);
void initializeMergedLoadStoreMotionPass(PassRegistry &);
void initializeMetaRenamerPass(PassRegistry&);
void initializeMergeFunctionsPass(PassRegistry&);
void initializeModuleDebugInfoPrinterPass(PassRegistry&);
void initializeNaryReassociatePass(PassRegistry&);
void initializeNoAAPass(PassRegistry&);
void initializeObjCARCAAWrapperPassPass(PassRegistry&);
void initializeObjCARCAPElimPass(PassRegistry&);
void initializeObjCARCExpandPass(PassRegistry&);
void initializeObjCARCContractPass(PassRegistry&);
void initializeObjCARCOptPass(PassRegistry&);
void initializePAEvalPass(PassRegistry &);
void initializeOptimizePHIsPass(PassRegistry&);
void initializePartiallyInlineLibCallsPass(PassRegistry&);
void initializePEIPass(PassRegistry&);
void initializePHIEliminationPass(PassRegistry&);
void initializePartialInlinerPass(PassRegistry&);
void initializePeepholeOptimizerPass(PassRegistry&);
void initializePostDomOnlyPrinterPass(PassRegistry&);
void initializePostDomOnlyViewerPass(PassRegistry&);
void initializePostDomPrinterPass(PassRegistry&);
void initializePostDomViewerPass(PassRegistry&);
void initializePostDominatorTreePass(PassRegistry&);
void initializePostOrderFunctionAttrsPass(PassRegistry&);
void initializePostRASchedulerPass(PassRegistry&);
void initializePostMachineSchedulerPass(PassRegistry&);
void initializePrintFunctionPassWrapperPass(PassRegistry&);
void initializePrintModulePassWrapperPass(PassRegistry&);
void initializePrintBasicBlockPassPass(PassRegistry&);
void initializeProcessImplicitDefsPass(PassRegistry&);
void initializePromotePassPass(PassRegistry&);
void initializePruneEHPass(PassRegistry&);
void initializeReassociatePass(PassRegistry&);
void initializeRegToMemPass(PassRegistry&);
void initializeRegionInfoPassPass(PassRegistry&);
void initializeRegionOnlyPrinterPass(PassRegistry&);
void initializeRegionOnlyViewerPass(PassRegistry&);
void initializeRegionPrinterPass(PassRegistry&);
void initializeRegionViewerPass(PassRegistry&);
void initializeReversePostOrderFunctionAttrsPass(PassRegistry&);
void initializeRewriteStatepointsForGCPass(PassRegistry&);
void initializeSafeStackPass(PassRegistry&);
void initializeSCCPPass(PassRegistry&);
void initializeSROALegacyPassPass(PassRegistry&);
void initializeSROA_DTPass(PassRegistry&);
void initializeSROA_SSAUpPass(PassRegistry&);
void initializeSCEVAAWrapperPassPass(PassRegistry&);
void initializeScalarEvolutionWrapperPassPass(PassRegistry&);
void initializeShrinkWrapPass(PassRegistry &);
void initializeSimpleInlinerPass(PassRegistry&);
void initializeShadowStackGCLoweringPass(PassRegistry&);
void initializeRegisterCoalescerPass(PassRegistry&);
void initializeSingleLoopExtractorPass(PassRegistry&);
void initializeSinkingPass(PassRegistry&);
void initializeSeparateConstOffsetFromGEPPass(PassRegistry &);
void initializeSlotIndexesPass(PassRegistry&);
void initializeSpillPlacementPass(PassRegistry&);
void initializeSpeculativeExecutionPass(PassRegistry&);
void initializeStackProtectorPass(PassRegistry&);
void initializeStackColoringPass(PassRegistry&);
void initializeStackSlotColoringPass(PassRegistry&);
void initializeStraightLineStrengthReducePass(PassRegistry &);
void initializeStripDeadDebugInfoPass(PassRegistry&);
void initializeStripDeadPrototypesLegacyPassPass(PassRegistry&);
void initializeStripDebugDeclarePass(PassRegistry&);
void initializeStripNonDebugSymbolsPass(PassRegistry&);
void initializeStripSymbolsPass(PassRegistry&);
void initializeTailCallElimPass(PassRegistry&);
void initializeTailDuplicatePassPass(PassRegistry&);
void initializeTargetPassConfigPass(PassRegistry&);
void initializeTargetTransformInfoWrapperPassPass(PassRegistry &);
void initializeTargetLibraryInfoWrapperPassPass(PassRegistry &);
void initializeAssumptionCacheTrackerPass(PassRegistry &);
void initializeTwoAddressInstructionPassPass(PassRegistry&);
void initializeTypeBasedAAWrapperPassPass(PassRegistry&);
void initializeScopedNoAliasAAWrapperPassPass(PassRegistry&);
void initializeUnifyFunctionExitNodesPass(PassRegistry&);
void initializeUnreachableBlockElimPass(PassRegistry&);
void initializeUnreachableMachineBlockElimPass(PassRegistry&);
void initializeVerifierLegacyPassPass(PassRegistry&);
void initializeVirtRegMapPass(PassRegistry&);
void initializeVirtRegRewriterPass(PassRegistry&);
void initializeInstSimplifierPass(PassRegistry&);
void initializeUnpackMachineBundlesPass(PassRegistry&);
void initializeFinalizeMachineBundlesPass(PassRegistry&);
void initializeLoopAccessAnalysisPass(PassRegistry&);
void initializeLoopVectorizePass(PassRegistry&);
void initializeSLPVectorizerPass(PassRegistry&);
void initializeBBVectorizePass(PassRegistry&);
void initializeMachineFunctionPrinterPassPass(PassRegistry&);
void initializeMIRPrintingPassPass(PassRegistry&);
void initializeStackMapLivenessPass(PassRegistry&);
void initializeLiveDebugValuesPass(PassRegistry&);
void initializeMachineCombinerPass(PassRegistry &);
void initializeLoadCombinePass(PassRegistry&);
void initializeRewriteSymbolsPass(PassRegistry&);
void initializeWinEHPreparePass(PassRegistry&);
void initializePlaceBackedgeSafepointsImplPass(PassRegistry&);
void initializePlaceSafepointsPass(PassRegistry&);
void initializeDwarfEHPreparePass(PassRegistry&);
void initializeFloat2IntPass(PassRegistry&);
void initializeLoopDistributePass(PassRegistry&);
void initializeSjLjEHPreparePass(PassRegistry&);
void initializeDemandedBitsPass(PassRegistry&);
void initializeFuncletLayoutPass(PassRegistry &);
void initializeLoopLoadEliminationPass(PassRegistry&);
void initializeFunctionImportPassPass(PassRegistry &);
}
#endif
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