Ahmed Bougacha 6d1485e974 [MemCpyOpt] Don't move the memset when optimizing memset+memcpy. ...

Fixes PR23599, another miscompile introduced by r235232: when there is
another dependency on the destination of the created memset (i.e., the
part of the original destination that the memcpy doesn't depend on)
between the memcpy and the original memset, we would insert the created
memset after the memcpy, and thus after the other dependency.

Instead, insert the created memset right after the old one.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237858 91177308-0d34-0410-b5e6-96231b3b80d8

2015-05-20 23:55:16 +00:00

..

ADCE.cpp

…

AlignmentFromAssumptions.cpp

Use 'override/final' instead of 'virtual' for overridden methods

2015-04-11 02:11:45 +00:00

BDCE.cpp

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CMakeLists.txt

Add a speculative execution pass

2015-05-15 17:54:48 +00:00

ConstantHoisting.cpp

Re-sort includes with sort-includes.py and insert raw_ostream.h where it's used.

2015-03-23 19:32:43 +00:00

ConstantProp.cpp

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CorrelatedValuePropagation.cpp

CVP: Improve handling of Selects used as incoming PHI values

2015-05-12 22:31:47 +00:00

DCE.cpp

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DeadStoreElimination.cpp

[CallSite] Make construction from Value* (or Instruction*) explicit.

2015-04-10 14:50:08 +00:00

EarlyCSE.cpp

Re-sort includes with sort-includes.py and insert raw_ostream.h where it's used.

2015-03-23 19:32:43 +00:00

FlattenCFGPass.cpp

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Float2Int.cpp

Reapply r233175 and r233183: float2int.

2015-03-27 10:36:57 +00:00

GVN.cpp

[opaque pointer type] API migration for GEP constant factories

2015-04-02 18:55:32 +00:00

InductiveRangeCheckElimination.cpp

[IRCE] Fix how IRCE checks for no-sign-overflow.

2015-03-24 19:29:22 +00:00

IndVarSimplify.cpp

indvars cruft: don't replace phi nodes for no reason.

2015-05-18 16:49:34 +00:00

JumpThreading.cpp

[JumpThreading] Simplify comparisons when simplifying branches

2015-05-07 00:19:14 +00:00

LICM.cpp

Exploit dereferenceable_or_null attribute in LICM pass

2015-05-18 18:07:00 +00:00

LLVMBuild.txt

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LoadCombine.cpp

Mark empty default constructors as =default if it makes the type POD

2015-04-11 18:57:14 +00:00

LoopDeletion.cpp

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LoopDistribute.cpp

Attempt to fix MSVC bots

2015-05-14 12:33:32 +00:00

LoopIdiomRecognize.cpp

Simplify IRBuilder::CreateCall* by using ArrayRef+initializer_list/braced init only

2015-05-18 22:13:54 +00:00

LoopInstSimplify.cpp

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LoopInterchange.cpp

Fix LoopInterchange/reductions.ll test for debug builds

2015-04-24 17:39:16 +00:00

LoopRerollPass.cpp

Re-sort includes with sort-includes.py and insert raw_ostream.h where it's used.

2015-03-23 19:32:43 +00:00

LoopRotation.cpp

Re-sort includes with sort-includes.py and insert raw_ostream.h where it's used.

2015-03-23 19:32:43 +00:00

LoopStrengthReduce.cpp

[LSR][NFC] Remove a stale comment.

2015-04-21 20:42:50 +00:00

LoopUnrollPass.cpp

[Unrolling] Refactor the start and step offsets to simplify overflow

2015-05-12 23:32:56 +00:00

LoopUnswitch.cpp

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LowerAtomic.cpp

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LowerExpectIntrinsic.cpp

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Makefile

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MemCpyOptimizer.cpp

[MemCpyOpt] Don't move the memset when optimizing memset+memcpy.

2015-05-20 23:55:16 +00:00

MergedLoadStoreMotion.cpp

Another set of missing raw_ostream.h. Still no functional change.

2015-03-23 18:45:56 +00:00

NaryReassociate.cpp

[NaryReassociate] avoid running forever

2015-05-13 18:12:24 +00:00

PartiallyInlineLibCalls.cpp

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PlaceSafepoints.cpp

Add a GCStrategy for CoreCLR

2015-05-20 01:07:23 +00:00

Reassociate.cpp

don't repeat function names in comments; NFC

2015-04-22 18:04:46 +00:00

Reg2Mem.cpp

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RewriteStatepointsForGC.cpp

Silencing a -Wsign-compare warning; NFC.

2015-05-20 14:53:50 +00:00

SampleProfile.cpp

Add function entry counts from sample profiles.

2015-05-13 17:04:29 +00:00

Scalar.cpp

Add a speculative execution pass

2015-05-15 17:54:48 +00:00

Scalarizer.cpp

[opaque pointer type] More GEP IRBuilder API migrations

2015-04-03 23:03:54 +00:00

ScalarReplAggregates.cpp

Change LoadAndStorePromoter to take ArrayRef instead of SmallVectorImpl&.

2015-05-13 01:12:16 +00:00

SCCP.cpp

[opaque pointer type] API migration for GEP constant factories

2015-04-02 18:55:32 +00:00

SeparateConstOffsetFromGEP.cpp

[ValueTracking] refactor: extract method haveNoCommonBitsSet

2015-05-14 23:53:19 +00:00

SimplifyCFGPass.cpp

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Sink.cpp

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SpeculativeExecution.cpp

[Speculation] NFC: more header comments

2015-05-19 20:52:45 +00:00

SROA.cpp

Construct ArrayRef<const T*> from vector<T>

2015-05-13 22:43:09 +00:00

StraightLineStrengthReduce.cpp

[ScalarEvolution] refactor: extract interface getGEPExpr

2015-05-18 17:03:25 +00:00

StructurizeCFG.cpp

Change range-based for-loops to be -Wrange-loop-analysis clean.

2015-04-15 01:21:15 +00:00

TailRecursionElimination.cpp

Re-sort includes with sort-includes.py and insert raw_ostream.h where it's used.

2015-03-23 19:32:43 +00:00