Teresa Johnson 538b8d25f0 Add zero-length check to memcpy/memset load store loop expansion ...

Summary:
I was testing using this expansion logic in other cases besides
NVPTX, and found some runtime failures due to the lack of a check
for a zero length memcpy/memset before the loop. There is already
such a check in the memmove expansion code though.

Reviewers: hfinkel

Subscribers: jholewinski, wdng, llvm-commits

Differential Revision: https://reviews.llvm.org/D34707

llvm-svn: 306541

2017-06-28 13:07:37 +00:00

..

AddDiscriminators.cpp

[AddDiscriminators] Assign discriminators to MemIntrinsic calls.

2017-04-11 19:07:30 +00:00

ASanStackFrameLayout.cpp

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BasicBlockUtils.cpp

Rename WeakVH to WeakTrackingVH; NFC

2017-05-01 17:07:49 +00:00

BreakCriticalEdges.cpp

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BuildLibCalls.cpp

Add argmononly attribute to strlen and wcslen, i.e. they only read memory (string) passed to them.

2017-06-18 03:10:26 +00:00

BypassSlowDivision.cpp

[KnownBits] Add bit counting methods to KnownBits struct and use them where possible

2017-05-12 17:20:30 +00:00

CloneFunction.cpp

Inlining: Don't re-map simplified cloned instructions.

2017-06-28 01:41:25 +00:00

CloneModule.cpp

Sort the remaining #include lines in include/... and lib/....

2017-06-06 11:49:48 +00:00

CMakeLists.txt

Add a dominanance check interface that uses caching for instructions within same basic block.

2017-06-06 02:34:41 +00:00

CmpInstAnalysis.cpp

[APInt] Rename getSignBit to getSignMask

2017-04-20 16:56:25 +00:00

CodeExtractor.cpp

[CodeExtractor] Prevent extraction of block involving blockaddress

2017-06-27 18:57:53 +00:00

CtorUtils.cpp

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DemoteRegToStack.cpp

Sort the remaining #include lines in include/... and lib/....

2017-06-06 11:49:48 +00:00

EscapeEnumerator.cpp

Suppress all uses of LLVM_END_WITH_NULL. NFC.

2017-05-09 19:31:13 +00:00

Evaluator.cpp

[InstSimplify] Don't constant fold or DCE calls that are marked nobuiltin

2017-06-09 23:18:11 +00:00

FlattenCFG.cpp

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2017-06-06 11:49:48 +00:00

FunctionComparator.cpp

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2017-06-06 11:49:48 +00:00

FunctionImportUtils.cpp

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2017-06-06 11:49:48 +00:00

GlobalStatus.cpp

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2017-06-06 11:49:48 +00:00

ImportedFunctionsInliningStatistics.cpp

[ThinLTO] Correct counting of functions in inliner stats

2017-03-24 17:59:06 +00:00

InlineFunction.cpp

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2017-06-06 11:49:48 +00:00

InstructionNamer.cpp

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2017-06-06 11:49:48 +00:00

IntegerDivision.cpp

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LCSSA.cpp

[LCSSA] Don't insert tokens into the worklist at all.

2017-04-17 14:32:05 +00:00

LibCallsShrinkWrap.cpp

[LibCallsShrinkWrap] Remove an unnecessary class member variable.

2017-04-26 21:28:40 +00:00

LLVMBuild.txt

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Local.cpp

[InstCombine] Factor the logic for propagating !nonnull and !range

2017-06-26 03:31:31 +00:00

LoopSimplify.cpp

[LoopSimplify] Re-instate r306081 with a bug fix w.r.t. indirectbr.

2017-06-25 22:45:31 +00:00

LoopUnroll.cpp

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2017-06-06 11:49:48 +00:00

LoopUnrollPeel.cpp

[LoopPeeling] Get rid of Phis that become invariant after N steps

2017-04-17 09:52:02 +00:00

LoopUnrollRuntime.cpp

[LoopUnrollRuntime] Use SCEV exit count for calculating trip count. NFCI

2017-06-27 14:14:35 +00:00

LoopUtils.cpp

[LoopSimplify] Re-instate r306081 with a bug fix w.r.t. indirectbr.

2017-06-25 22:45:31 +00:00

LoopVersioning.cpp

[LoopVersioning] Require loop-simplify form for loop versioning.

2016-12-19 17:13:37 +00:00

LowerInvoke.cpp

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LowerMemIntrinsics.cpp

Add zero-length check to memcpy/memset load store loop expansion

2017-06-28 13:07:37 +00:00

LowerSwitch.cpp

Sort the remaining #include lines in include/... and lib/....

2017-06-06 11:49:48 +00:00

Mem2Reg.cpp

[Mem2Reg] Remove AliasSetTracker updating logic from the pass.

2017-04-09 20:47:14 +00:00

MetaRenamer.cpp

Sort the remaining #include lines in include/... and lib/....

2017-06-06 11:49:48 +00:00

ModuleUtils.cpp

Suppress all uses of LLVM_END_WITH_NULL. NFC.

2017-05-09 19:31:13 +00:00

NameAnonGlobals.cpp

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OrderedInstructions.cpp

Add a dominanance check interface that uses caching for instructions within same basic block.

2017-06-06 02:34:41 +00:00

PredicateInfo.cpp

PredicateInfo: Don't insert conditional info when a conditional branch jumps to the same target regardless of condition

2017-06-14 21:19:52 +00:00

PromoteMemoryToRegister.cpp

Kill off the old SimplifyInstruction API by converting remaining users.

2017-04-28 19:55:38 +00:00

SanitizerStats.cpp

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2017-06-06 11:49:48 +00:00

SimplifyCFG.cpp

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2017-06-06 11:49:48 +00:00

SimplifyIndVar.cpp

[ScalarEvolution] Apply Depth limit to getMulExpr

2017-06-15 11:48:21 +00:00

SimplifyInstructions.cpp

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2017-06-06 11:49:48 +00:00

SimplifyLibCalls.cpp

[SimplifyLibCalls] fix formatting; NFC

2017-06-09 14:22:03 +00:00

SplitModule.cpp

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SSAUpdater.cpp

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2017-06-06 11:49:48 +00:00

StripGCRelocates.cpp

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2017-06-06 11:49:48 +00:00

StripNonLineTableDebugInfo.cpp

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2017-06-06 11:49:48 +00:00

SymbolRewriter.cpp

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2017-06-06 11:49:48 +00:00

UnifyFunctionExitNodes.cpp

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Utils.cpp

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2017-06-06 11:49:48 +00:00

ValueMapper.cpp

Suppress all uses of LLVM_END_WITH_NULL. NFC.

2017-05-09 19:31:13 +00:00

VNCoercion.cpp

[GVN] Fix a crash on encountering non-integral pointers

2017-05-09 21:07:20 +00:00