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Jingyue Wu 529f49db93 [InstCombine] call SimplifyICmpInst with correct context 
Summary:
Fixes PR23809. Without passing the context to SimplifyICmpInst, we would
use the assume to prove that the condition feeding the assume is
trivially true (see isValidAssumeForContext in ValueTracking.cpp),
causing the removal of the assume which may be useful for later
optimizations.

Test Plan: pr23800.ll

Reviewers: hfinkel, majnemer

Reviewed By: hfinkel

Subscribers: henryhu, llvm-commits, wengxt, broune, meheff, eliben

Differential Revision: http://reviews.llvm.org/D10695

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240683 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-25 20:14:47 +00:00
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2002-03-11-InstCombineHang.ll
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2002-05-14-SubFailure.ll
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2002-08-02-CastTest.ll
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2002-12-05-MissedConstProp.ll
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2003-05-26-CastMiscompile.ll
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2003-05-27-ConstExprCrash.ll
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2003-06-05-BranchInvertInfLoop.ll
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2003-07-21-ExternalConstant.ll
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2003-08-12-AllocaNonNull.ll
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2003-09-09-VolatileLoadElim.ll
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2003-10-29-CallSiteResolve.ll
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2003-11-03-VarargsCallBug.ll
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2004-01-13-InstCombineInvokePHI.ll
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2004-02-23-ShiftShiftOverflow.ll
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2004-03-13-InstCombineInfLoop.ll
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2004-04-04-InstCombineReplaceAllUsesWith.ll
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2004-05-07-UnsizedCastLoad.ll
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2004-07-27-ConstantExprMul.ll
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2004-08-10-BoolSetCC.ll
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2004-11-22-Missed-and-fold.ll
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2004-11-27-SetCCForCastLargerAndConstant.ll
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2004-12-08-RemInfiniteLoop.ll
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2005-03-04-ShiftOverflow.ll
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2005-04-07-UDivSelectCrash.ll
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2005-06-15-DivSelectCrash.ll
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2005-06-15-ShiftSetCCCrash.ll
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2005-06-16-RangeCrash.ll
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2005-07-07-DeadPHILoop.ll
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2006-02-13-DemandedMiscompile.ll
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2006-02-28-Crash.ll
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2006-03-30-ExtractElement.ll
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2006-04-28-ShiftShiftLongLong.ll
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2006-05-04-DemandedBitCrash.ll
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2006-09-15-CastToBool.ll
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2006-10-19-SignedToUnsignedCastAndConst-2.ll
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2006-10-20-mask.ll
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2006-10-26-VectorReassoc.ll
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2006-11-10-ashr-miscompile.ll
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2006-12-01-BadFPVectorXform.ll
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2006-12-05-fp-to-int-ext.ll
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2006-12-08-Phi-ICmp-Op-Fold.ll
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2006-12-08-Select-ICmp.ll
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2006-12-15-Range-Test.ll
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2006-12-23-Select-Cmp-Cmp.ll
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2007-01-13-ExtCompareMiscompile.ll
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2007-01-14-FcmpSelf.ll
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2007-01-18-VectorInfLoop.ll
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2007-01-27-AndICmp.ll
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2007-02-01-LoadSinkAlloca.ll
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2007-02-07-PointerCast.ll
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2007-02-23-PhiFoldInfLoop.ll
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2007-03-13-CompareMerge.ll
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2007-03-19-BadTruncChangePR1261.ll
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2007-03-21-SignedRangeTest.ll
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2007-03-25-BadShiftMask.ll
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2007-03-25-DoubleShift.ll
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2007-03-26-BadShiftMask.ll
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2007-04-08-SingleEltVectorCrash.ll
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2007-05-10-icmp-or.ll
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2007-05-14-Crash.ll
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2007-05-18-CastFoldBug.ll
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2007-06-06-AshrSignBit.ll
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2007-06-21-DivCompareMiscomp.ll
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2007-08-02-InfiniteLoop.ll
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2007-09-10-AliasConstFold.ll
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2007-09-17-AliasConstFold2.ll
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2007-10-10-EliminateMemCpy.ll
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2007-10-12-Crash.ll
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2007-10-28-stacksave.ll
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2007-10-31-RangeCrash.ll
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2007-10-31-StringCrash.ll
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2007-11-07-OpaqueAlignCrash.ll
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2007-11-15-CompareMiscomp.ll
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2007-11-22-IcmpCrash.ll
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2007-11-25-CompatibleAttributes.ll
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2007-12-10-ConstFoldCompare.ll
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2007-12-12-GEPScale.ll
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2007-12-16-AsmNoUnwind.ll
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2007-12-18-AddSelCmpSub.ll
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2007-12-28-IcmpSub2.ll
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2008-01-06-BitCastAttributes.ll
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2008-01-06-CastCrash.ll
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2008-01-06-VoidCast.ll
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2008-01-13-AndCmpCmp.ll
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2008-01-13-NoBitCastAttributes.ll
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2008-01-14-VarArgTrampoline.ll
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2008-01-21-MismatchedCastAndCompare.ll
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2008-01-21-MulTrunc.ll
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2008-01-27-FloatSelect.ll
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2008-01-29-AddICmp.ll
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2008-02-13-MulURem.ll
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2008-02-16-SDivOverflow2.ll
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2008-02-23-MulSub.ll
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2008-02-28-OrFCmpCrash.ll
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2008-03-13-IntToPtr.ll
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2008-04-22-ByValBitcast.ll
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2008-04-28-VolatileStore.ll
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2008-04-29-VolatileLoadDontMerge.ll
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2008-04-29-VolatileLoadMerge.ll
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2008-05-08-LiveStoreDelete.ll
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2008-05-08-StrLenSink.ll
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2008-05-09-SinkOfInvoke.ll
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2008-05-23-CompareFold.ll
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2008-05-31-AddBool.ll
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2008-05-31-Bools.ll
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2008-06-05-ashr-crash.ll
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2008-06-08-ICmpPHI.ll
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2008-06-13-InfiniteLoopStore.ll
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2008-06-13-ReadOnlyCallStore.ll
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2008-06-19-UncondLoad.ll
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2008-06-21-CompareMiscomp.ll
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2008-06-24-StackRestore.ll
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2008-07-08-ShiftOneAndOne.ll
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2008-07-08-SubAnd.ll
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2008-07-08-VolatileLoadMerge.ll
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2008-07-09-SubAndError.ll
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2008-07-10-CastSextBool.ll
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2008-07-10-ICmpBinOp.ll
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2008-07-11-RemAnd.ll
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2008-07-13-DivZero.ll
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2008-07-16-fsub.ll
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2008-07-16-sse2_storel_dq.ll
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2008-08-05-And.ll
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2008-08-17-ICmpXorSignbit.ll
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2008-09-02-VectorCrash.ll
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2008-09-29-FoldingOr.ll
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2008-10-11-DivCompareFold.ll
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2008-10-23-ConstFoldWithoutMask.ll
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2008-11-01-SRemDemandedBits.ll
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2008-11-08-FCmp.ll
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2008-11-20-DivMulRem.ll
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2008-11-27-IDivVector.ll
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2008-11-27-MultiplyIntVec.ll
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2008-11-27-UDivNegative.ll
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2008-12-17-SRemNegConstVec.ll
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2009-01-05-i128-crash.ll
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2009-01-08-AlignAlloca.ll
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2009-01-16-PointerAddrSpace.ll
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2009-01-19-fmod-constant-float-specials.ll
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2009-01-19-fmod-constant-float.ll
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2009-01-24-EmptyStruct.ll
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2009-01-31-InfIterate.ll
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2009-01-31-Pressure.ll
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2009-02-04-FPBitcast.ll
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2009-02-11-NotInitialized.ll
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2009-02-20-InstCombine-SROA.ll
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2009-02-21-LoadCST.ll
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2009-02-25-CrashZeroSizeArray.ll
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2009-03-18-vector-ashr-crash.ll
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2009-03-20-AShrOverShift.ll
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2009-03-24-InfLoop.ll
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2009-04-07-MulPromoteToI96.ll
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2009-05-23-FCmpToICmp.ll
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2009-06-11-StoreAddrSpace.ll
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2009-06-16-SRemDemandedBits.ll
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2009-07-02-MaskedIntVector.ll
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2009-12-17-CmpSelectNull.ll
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2010-01-28-NegativeSRem.ll
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2010-03-03-ExtElim.ll
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2010-05-30-memcpy-Struct.ll
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2010-11-01-lshr-mask.ll
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2010-11-21-SizeZeroTypeGEP.ll
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2010-11-23-Distributed.ll
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2011-02-14-InfLoop.ll
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2011-03-08-SRemMinusOneBadOpt.ll
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2011-05-02-VectorBoolean.ll
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2011-05-13-InBoundsGEP.ll
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2011-06-13-nsw-alloca.ll
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2011-09-03-Trampoline.ll
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2011-10-07-AlignPromotion.ll
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2012-3-15-or-xor-constant.ll
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2012-6-7-vselect-bitcast.ll
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2012-01-11-OpaqueBitcastCrash.ll
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2012-02-13-FCmp.ll
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2012-02-28-ICmp.ll
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2012-03-10-InstCombine.ll
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2012-04-23-Neon-Intrinsics.ll
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2012-04-24-vselect.ll
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2012-04-30-SRem.ll
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2012-05-27-Negative-Shift-Crash.ll
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2012-05-28-select-hang.ll
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2012-06-06-LoadOfPHIs.ll
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2012-07-25-LoadPart.ll
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2012-07-30-addrsp-bitcast.ll
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2012-08-28-udiv_ashl.ll
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2012-09-17-ZeroSizedAlloca.ll
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2012-10-25-vector-of-pointers.ll
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2012-12-14-simp-vgep.ll
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2013-03-05-Combine-BitcastTy-Into-Alloca.ll
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abs_abs.ll
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abs-1.ll
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add2.ll
[InstCombine] Don't eagerly propagate nsw for A*B+A*C => A*(B+C)
2015-05-22 23:02:11 +00:00
add3.ll
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add-shrink.ll
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add-sitofp.ll
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add.ll
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addnegneg.ll
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AddOverFlow.ll
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addrspacecast.ll
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adjust-for-sminmax.ll
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alias-recursion.ll
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align-2d-gep.ll
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align-addr.ll
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align-attr.ll
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align-external.ll
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aligned-altivec.ll
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aligned-qpx.ll
[InstCombine/PowerPC] Fix single-precision QPX load/store replacement
2015-05-11 06:37:03 +00:00
alloca.ll
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and2.ll
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and-compare.ll
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and-fcmp.ll
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and-not-or.ll
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and-or.ll
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and.ll
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assume2.ll
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assume.ll
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atomic.ll
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branch.ll
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call.ll
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canonicalize_branch.ll
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cast_ptr.ll
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cast-set.ll
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cast.ll
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ceil.ll
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constant-expr-datalayout.ll
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cos-2.ll
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CPP_min_max.ll
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crash.ll
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dce-iterate.ll
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deadcode.ll
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debug-line.ll
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debuginfo.ll
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default-alignment.ll
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demand_shrink_nsw.ll
InstCombineSimplifyDemanded: Remove nsw/nuw flags when optimizing demanded bits
2015-04-30 22:05:30 +00:00
disable-simplify-libcalls.ll
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distribute.ll
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div-shift-crash.ll
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div-shift.ll
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div.ll
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dom-conditions.ll
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double-float-shrink-1.ll
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exact.ll
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extractvalue.ll
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fabs.ll
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fast-math.ll
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fcmp-special.ll
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fcmp.ll
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fdiv.ll
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float-shrink-compare.ll
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fmul.ll
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fold-phi.ll
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fpcast.ll
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gc.relocate.ll
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2015-05-12 23:52:24 +00:00
gep-addrspace.ll
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gep-sext.ll
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gepgep.ll
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gepphigep.ll
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getelementptr.ll
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hoist_instr.ll
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icmp-logical.ll
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icmp-range.ll
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icmp-shr.ll
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icmp.ll
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idioms.ll
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inline-intrinsic-assert.ll
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insert-extract-shuffle.ll
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intrinsics.ll
[InstSimplify] Handle some overflow intrinsics in InstSimplify
2015-05-22 03:56:46 +00:00
invariant.ll
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invoke.ll
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isascii-1.ll
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isdigit-1.ll
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known_align.ll
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LandingPadClauses.ll
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load3.ll
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load-bitcast32.ll
[InstCombine] Fold IntToPtr and PtrToInt into preceding loads.
2015-05-28 18:39:17 +00:00
load-bitcast64.ll
[InstCombine] Fold IntToPtr and PtrToInt into preceding loads.
2015-05-28 18:39:17 +00:00
load-cmp.ll
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load.ll
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logical-select.ll
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malloc-free-delete.ll
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max-of-nots.ll
[InstCombine] Add new rule for MIN(MAX(~A, ~B), ~C) et. al.
2015-04-30 04:56:04 +00:00
maxnum.ll
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mem-gep-zidx.ll
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memchr.ll
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memcmp-1.ll
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memset.ll
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merge-icmp.ll
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minmax-fold.ll
Reapply r237539 with a fix for the Chromium build.
2015-05-20 18:41:25 +00:00
minnum.ll
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mul-masked-bits.ll
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mul.ll
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multi-size-address-space-pointer.ll
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multi-use-or.ll
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narrow-switch.ll
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narrow.ll
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neon-intrinsics.ll
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no-negzero.ll
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not.ll
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nothrow.ll
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nsw.ll
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obfuscated_splat.ll
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objsize-64.ll
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objsize-address-space.ll
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objsize-noverify.ll
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objsize.ll
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odr-linkage.ll
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onehot_merge.ll
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or-fcmp.ll
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or.ll
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osx-names.ll
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overflow-mul.ll
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overflow.ll
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phi.ll
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pow-1.ll
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pr20079.ll
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pr21199.ll
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pr21210.ll
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pr21651.ll
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pr21891.ll
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pr23751.ll
[InstCombine] Fix PR23751.
2015-06-05 18:04:42 +00:00
pr23809.ll
[InstCombine] call SimplifyICmpInst with correct context
2015-06-25 20:14:47 +00:00
PR7357.ll
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preserve-sminmax.ll
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printf-1.ll
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printf-2.ll
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ptr-int-cast.ll
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puts-1.ll
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r600-intrinsics.ll
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range-check.ll
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README.txt
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rem.ll
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round.ll
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sdiv-1.ll
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sdiv-2.ll
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select-2.ll
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select-cmp-br.ll
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select-cmp-cttz-ctlz.ll
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select-crash-noverify.ll
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select-crash.ll
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select-extractelement.ll
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select-load-call.ll
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select-select.ll
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select.ll
Take alignment into account in isSafeToLoadUnconditionally
2015-06-25 12:18:43 +00:00
set.ll
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setcc-strength-reduce.ll
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sext.ll
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shift-sra.ll
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shift.ll
Changed renaming of local symbols by inserting a dot vefore the numeric suffix.
2015-05-12 16:47:30 +00:00
shufflemask-undef.ll
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shufflevec-constant.ll
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sign-test-and-or.ll
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signed-comparison.ll
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signext.ll
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simplify-demanded-bits-pointer.ll
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simplify-libcalls.ll
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sincospi.ll
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sink_instruction.ll
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sitofp.ll
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sprintf-1.ll
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sqrt.ll
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srem1.ll
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srem-simplify-bug.ll
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srem.ll
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stack-overalign.ll
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stacksaverestore.ll
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statepoint.ll
[Statepoints] Support for "patchable" statepoints.
2015-05-12 23:52:24 +00:00
store.ll
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stpcpy_chk-1.ll
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stpcpy_chk-2.ll
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stpcpy-1.ll
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stpcpy-2.ll
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strcat-1.ll
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strchr-1.ll
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strcmp-1.ll
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strcpy_chk-1.ll
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strcspn-1.ll
…
strcspn-2.ll
…
strlen-1.ll
…
strlen-2.ll
…
strncat-1.ll
…
strncat-2.ll
…
strncat-3.ll
…
strncmp-1.ll
…
strncmp-2.ll
…
strncpy_chk-1.ll
…
strncpy_chk-2.ll
…
strncpy-1.ll
…
strncpy-2.ll
…
strpbrk-1.ll
…
strpbrk-2.ll
…
strrchr-1.ll
…
strrchr-2.ll
…
strspn-1.ll
…
strstr-1.ll
…
strstr-2.ll
…
strto-1.ll
…
struct-assign-tbaa.ll
…
sub-xor.ll
…
sub.ll
[InstCombine] Optimize subtract of selects into a select of a sub
2015-06-23 02:49:24 +00:00
switch-truncate-crash.ll
…
toascii-1.ll
…
trunc.ll
…
type_pun.ll
…
udiv_select_to_select_shift.ll
…
udiv-simplify-bug-0.ll
…
udiv-simplify-bug-1.ll
…
udivrem-change-width.ll
…
unordered-fcmp-select.ll
…
unpack-fca.ll
Make buildbots happy
2015-05-11 05:33:27 +00:00
urem-simplify-bug.ll
…
urem.ll
…
vec_demanded_elts.ll
…
vec_extract_2elts.ll
…
vec_extract_elt.ll
…
vec_extract_var_elt.ll
…
vec_insertelt.ll
…
vec_narrow.ll
…
vec_phi_extract.ll
…
vec_sext.ll
…
vec_shuffle.ll
…
vector_gep1.ll
…
vector_gep2.ll
…
vector-casts.ll
…
vector-mul.ll
…
vector-srem.ll
…
vector-type.ll
…
volatile_store.ll
…
vsx-unaligned.ll
…
weak-symbols.ll
…
win-math.ll
…
x86-crc32-demanded.ll
…
x86-insertps.ll
…
x86-vperm2.ll
…
xor2.ll
…
xor-undef.ll
…
xor.ll
Changed renaming of local symbols by inserting a dot vefore the numeric suffix.
2015-05-12 16:47:30 +00:00
zero-point-zero-add.ll
…
zeroext-and-reduce.ll
…
zext-bool-add-sub.ll
…
zext-fold.ll
…
zext-or-icmp.ll
…
zext.ll
…

README.txt 

This directory contains test cases for the instcombine transformation.  The
dated tests are actual bug tests, whereas the named tests are used to test
for features that the this pass should be capable of performing.