Daniel Berlin d6a6d70f05 MemorySSA: Remove MemorySSA walker caching. ...

Summary:
Remove all the caching the clobber walker does, and that the
caching walker does.  With the patch to enable storing clobbering
access results for stores, i can find no improvement with the cache
turned on (and a number of degradations, both time and memory, from
the cost of caching.  For a large program i have, we do millions of
lookups and inserts with zero hits).

I haven't tried to rename or simplify the walker otherwise yet.

(Appreciate some perf testing on this past my own testing)

Reviewers: george.burgess.iv, davide

Subscribers: Prazek, llvm-commits

Differential Revision: https://reviews.llvm.org/D31576

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@299578 91177308-0d34-0410-b5e6-96231b3b80d8

2017-04-05 19:01:58 +00:00

..

AddDiscriminators.cpp

…

ASanStackFrameLayout.cpp

…

BasicBlockUtils.cpp

…

BreakCriticalEdges.cpp

…

BuildLibCalls.cpp

…

BypassSlowDivision.cpp

[BypassSlowDivision] Do not bypass division of hash-like values

2017-04-02 13:14:30 +00:00

CloneFunction.cpp

…

CloneModule.cpp

…

CMakeLists.txt

…

CmpInstAnalysis.cpp

…

CodeExtractor.cpp

…

CtorUtils.cpp

…

DemoteRegToStack.cpp

…

EscapeEnumerator.cpp

…

Evaluator.cpp

…

FlattenCFG.cpp

…

FunctionComparator.cpp

…

FunctionImportUtils.cpp

…

GlobalStatus.cpp

…

ImportedFunctionsInliningStatistics.cpp

…

InlineFunction.cpp

…

InstructionNamer.cpp

…

IntegerDivision.cpp

…

LCSSA.cpp

…

LibCallsShrinkWrap.cpp

…

LLVMBuild.txt

…

Local.cpp

…

LoopSimplify.cpp

…

LoopUnroll.cpp

…

LoopUnrollPeel.cpp

…

LoopUnrollRuntime.cpp

…

LoopUtils.cpp

…

LoopVersioning.cpp

…

LowerInvoke.cpp

…

LowerMemIntrinsics.cpp

…

LowerSwitch.cpp

…

Mem2Reg.cpp

…

MemorySSA.cpp

MemorySSA: Remove MemorySSA walker caching.

2017-04-05 19:01:58 +00:00

MemorySSAUpdater.cpp

Re-apply MemorySSA: Add support for caching clobbering access in

2017-04-04 23:43:10 +00:00

MetaRenamer.cpp

…

ModuleUtils.cpp

…

NameAnonGlobals.cpp

…

PredicateInfo.cpp

…

PromoteMemoryToRegister.cpp

…

SanitizerStats.cpp

…

SimplifyCFG.cpp

…

SimplifyIndVar.cpp

…

SimplifyInstructions.cpp

…

SimplifyLibCalls.cpp

…

SplitModule.cpp

…

SSAUpdater.cpp

…

StripGCRelocates.cpp

…

StripNonLineTableDebugInfo.cpp

…

SymbolRewriter.cpp

…

UnifyFunctionExitNodes.cpp

…

Utils.cpp

…

ValueMapper.cpp

…

VNCoercion.cpp

…