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llvm-mirror/include/llvm/InitializePasses.h
Chandler Carruth 4d1e1851a4 [PM] Port ScalarEvolution to the new pass manager.
This change makes ScalarEvolution a stand-alone object and just produces
one from a pass as needed. Making this work well requires making the
object movable, using references instead of overwritten pointers in
a number of places, and other refactorings.

I've also wired it up to the new pass manager and added a RUN line to
a test to exercise it under the new pass manager. This includes basic
printing support much like with other analyses.

But there is a big and somewhat scary change here. Prior to this patch
ScalarEvolution was never *actually* invalidated!!! Re-running the pass
just re-wired up the various other analyses and didn't remove any of the
existing entries in the SCEV caches or clear out anything at all. This
might seem OK as everything in SCEV that can uses ValueHandles to track
updates to the values that serve as SCEV keys. However, this still means
that as we ran SCEV over each function in the module, we kept
accumulating more and more SCEVs into the cache. At the end, we would
have a SCEV cache with every value that we ever needed a SCEV for in the
entire module!!! Yowzers. The releaseMemory routine would dump all of
this, but that isn't realy called during normal runs of the pipeline as
far as I can see.

To make matters worse, there *is* actually a key that we don't update
with value handles -- there is a map keyed off of Loop*s. Because
LoopInfo *does* release its memory from run to run, it is entirely
possible to run SCEV over one function, then over another function, and
then lookup a Loop* from the second function but find an entry inserted
for the first function! Ouch.

To make matters still worse, there are plenty of updates that *don't*
trip a value handle. It seems incredibly unlikely that today GVN or
another pass that invalidates SCEV can update values in *just* such
a way that a subsequent run of SCEV will incorrectly find lookups in
a cache, but it is theoretically possible and would be a nightmare to
debug.

With this refactoring, I've fixed all this by actually destroying and
recreating the ScalarEvolution object from run to run. Technically, this
could increase the amount of malloc traffic we see, but then again it is
also technically correct. ;] I don't actually think we're suffering from
tons of malloc traffic from SCEV because if we were, the fact that we
never clear the memory would seem more likely to have come up as an
actual problem before now. So, I've made the simple fix here. If in fact
there are serious issues with too much allocation and deallocation,
I can work on a clever fix that preserves the allocations (while
clearing the data) between each run, but I'd prefer to do that kind of
optimization with a test case / benchmark that shows why we need such
cleverness (and that can test that we actually make it faster). It's
possible that this will make some things faster by making the SCEV
caches have higher locality (due to being significantly smaller) so
until there is a clear benchmark, I think the simple change is best.

Differential Revision: http://reviews.llvm.org/D12063

llvm-svn: 245193
2015-08-17 02:08:17 +00:00

309 lines
14 KiB
C++

//===- 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&);
/// initializeIPA - Initialize all passes linked into the IPA library.
void initializeIPA(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 initializeADCEPass(PassRegistry&);
void initializeBDCEPass(PassRegistry&);
void initializeAliasAnalysisAnalysisGroup(PassRegistry&);
void initializeAliasAnalysisCounterPass(PassRegistry&);
void initializeAliasSetPrinterPass(PassRegistry&);
void initializeAlwaysInlinerPass(PassRegistry&);
void initializeArgPromotionPass(PassRegistry&);
void initializeAtomicExpandPass(PassRegistry&);
void initializeSampleProfileLoaderPass(PassRegistry&);
void initializeAlignmentFromAssumptionsPass(PassRegistry&);
void initializeBarrierNoopPass(PassRegistry&);
void initializeBasicAliasAnalysisPass(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 initializeCFLAliasAnalysisPass(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 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 initializeGCOVProfilerPass(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 initializeFunctionAttrsPass(PassRegistry&);
void initializeGCMachineCodeAnalysisPass(PassRegistry&);
void initializeGCModuleInfoPass(PassRegistry&);
void initializeGVNPass(PassRegistry&);
void initializeGlobalDCEPass(PassRegistry&);
void initializeGlobalOptPass(PassRegistry&);
void initializeGlobalsModRefPass(PassRegistry&);
void initializeIPCPPass(PassRegistry&);
void initializeIPSCCPPass(PassRegistry&);
void initializeIVUsersPass(PassRegistry&);
void initializeIfConverterPass(PassRegistry&);
void initializeInductiveRangeCheckEliminationPass(PassRegistry&);
void initializeIndVarSimplifyPass(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 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 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 initializeObjCARCAliasAnalysisPass(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 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 initializeRewriteStatepointsForGCPass(PassRegistry&);
void initializeSafeStackPass(PassRegistry&);
void initializeSCCPPass(PassRegistry&);
void initializeSROAPass(PassRegistry&);
void initializeSROA_DTPass(PassRegistry&);
void initializeSROA_SSAUpPass(PassRegistry&);
void initializeScalarEvolutionAliasAnalysisPass(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 initializeStripDeadPrototypesPassPass(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 initializeTypeBasedAliasAnalysisPass(PassRegistry&);
void initializeScopedNoAliasAAPass(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 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&);
}
#endif