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Sanjay Patel 0753c06d9c [InstCombine] LogicOpc (zext X), C --> zext (LogicOpc X, C) (PR28476) 
The benefits of this change include:
1. Remove DeMorgan-matching code that was added specifically to work-around 
   the missing transform in http://reviews.llvm.org/rL248634.
2. Makes the DeMorgan transform work for vectors too.
3. Fix PR28476: https://llvm.org/bugs/show_bug.cgi?id=28476

Extending this transform to other casts and other associative operators may
be useful too. See https://reviews.llvm.org/D22421 for a prerequisite for
doing that though.

Differential Revision: https://reviews.llvm.org/D22271

llvm-svn: 276221
2016-07-21 00:24:18 +00:00
..
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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2004-08-09-RemInfLoop.ll
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2004-08-10-BoolSetCC.ll
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2004-09-20-BadLoadCombine2.ll
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2004-09-20-BadLoadCombine.ll
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2004-09-28-BadShiftAndSetCC.ll
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2004-11-22-Missed-and-fold.ll
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2004-11-27-SetCCForCastLargerAndConstant.ll
[InstCombine] limit icmp transform to ConstantInt (PR28011)
2016-06-06 16:56:57 +00:00
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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2005-06-16-SetCCOrSetCCMiscompile.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
[InstCombine] regenerate checks
2016-04-05 17:24:54 +00:00
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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2007-02-01-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
Revert "Change memcpy/memset/memmove to have dest and source alignments."
2015-11-19 05:56:52 +00:00
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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2007-11-25-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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2008-05-17-InfLoop.ll
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2008-05-18-FoldIntToPtr.ll
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2008-05-22-IDivVector.ll
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2008-05-22-NegValVector.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
update test to FileCheck
2016-06-05 16:29:15 +00:00
2008-07-08-SubAnd.ll
…
2008-07-08-VolatileLoadMerge.ll
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2008-07-09-SubAndError.ll
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2008-07-10-CastSextBool.ll
update test to use FileCheck
2016-06-05 16:41:20 +00:00
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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2008-08-05-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
Remove the ScalarReplAggregates pass
2016-06-15 00:19:09 +00:00
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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2011-05-28-swapmulsub.ll
Revert "Revert "Revert "InstCombine: Reduce trunc (shl x, K) width."""
2016-06-17 23:36:38 +00:00
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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2012-05-28-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
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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
Fix constant folding of addrspacecast of null
2016-05-21 00:14:04 +00:00
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
Revert "Change memcpy/memset/memmove to have dest and source alignments."
2015-11-19 05:56:52 +00:00
align-attr.ll
Teach computeKnownBits to look through returned-argument functions
2016-07-11 02:25:14 +00:00
align-external.ll
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aligned-altivec.ll
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aligned-qpx.ll
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all-bits-shift.ll
InstCombine: Restrict computeKnownBits() on all Values to OptLevel > 2
2016-03-09 18:47:11 +00:00
alloca.ll
[OperandBundles] Have InstCombine play nice with operand bundles
2015-12-23 09:58:41 +00:00
allocsize-32.ll
Add the allocsize attribute to LLVM.
2016-04-12 01:05:35 +00:00
allocsize.ll
Add the allocsize attribute to LLVM.
2016-04-12 01:05:35 +00:00
amdgcn-intrinsics.ll
AMDGPU: Add frexp_exp intrinsic
2016-03-30 22:28:52 +00:00
and2.ll
[InstSimplify] analyze (optionally casted) icmps to eliminate obviously false logic (PR27869)
2016-06-20 20:59:59 +00:00
and-compare.ll
join RUN lines; NFC
2016-05-28 15:34:05 +00:00
and-fcmp.ll
[InstCombine] Simplify and correct folding fcmps with the same children
2016-06-29 20:10:17 +00:00
and-not-or.ll
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and-or-and.ll
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and-or-icmps.ll
[InstCombine] consolidate some icmp+logic tests and improve checks
2016-06-20 18:40:37 +00:00
and-or-not.ll
use FileCheck for tighter checking
2016-03-16 23:20:20 +00:00
and-or.ll
[InstCombine] regenerate checks
2016-04-05 17:24:54 +00:00
and-xor-merge.ll
…
and-xor-or.ll
…
and.ll
[InstSimplify] analyze (optionally casted) icmps to eliminate obviously false logic (PR27869)
2016-06-20 20:59:59 +00:00
apint-add.ll
[InstCombine] fold add(zext(xor X, C), C) --> sext X when C is INT_MIN in the source type
2016-07-19 22:09:34 +00:00
apint-and1.ll
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apint-and2.ll
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apint-and-compare.ll
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apint-and-or-and.ll
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apint-and-xor-merge.ll
[InstCombine] regenerate checks
2016-04-05 17:24:54 +00:00
apint-call-cast-target.ll
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apint-cast-and-cast.ll
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apint-cast-cast-to-and.ll
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apint-cast.ll
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apint-div1.ll
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apint-div2.ll
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apint-mul1.ll
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apint-mul2.ll
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apint-not.ll
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apint-or.ll
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apint-rem1.ll
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apint-rem2.ll
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apint-select.ll
[InstCombine] LogicOpc (zext X), C --> zext (LogicOpc X, C) (PR28476)
2016-07-21 00:24:18 +00:00
apint-shift-simplify.ll
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apint-shift.ll
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apint-shl-trunc.ll
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apint-sub.ll
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apint-xor1.ll
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apint-xor2.ll
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apint-zext1.ll
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apint-zext2.ll
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assoc-cast-assoc.ll
[InstCombine] LogicOpc (zext X), C --> zext (LogicOpc X, C) (PR28476)
2016-07-21 00:24:18 +00:00
assume2.ll
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assume-loop-align.ll
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assume-redundant.ll
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assume.ll
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atomic.ll
Reapply 267210 with fix for PR27490
2016-05-06 22:17:01 +00:00
badmalloc.ll
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binop-cast.ll
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bit-checks.ll
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bit-tracking.ll
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bitcast-alias-function.ll
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bitcast-bigendian.ll
[InstCombine] transform bitcasted bitwise logic ops with constants (PR26702)
2016-03-03 19:19:04 +00:00
bitcast-bitcast.ll
[InstCombine] allow any pair of bitcasts to be combined
2015-12-12 00:33:36 +00:00
bitcast-sext-vector.ll
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bitcast-store.ll
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bitcast-vec-canon.ll
[InstCombine] canonicalize (bitcast (extractelement X)) --> (extractelement(bitcast X))
2015-12-12 16:44:48 +00:00
bitcast-vec-uniform.ll
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bitcast-vector-fold.ll
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bitcast.ll
[ConstantFolding] Fix bitcast vector of i1.
2016-06-27 06:42:54 +00:00
bitcount.ll
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bitreverse-fold.ll
Implement constant folding for bitreverse
2016-03-21 15:00:35 +00:00
bitreverse-hang.ll
[InstCombine] Rewrite bswap/bitreverse handling completely.
2016-01-15 09:20:19 +00:00
bittest.ll
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blend_x86.ll
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branch.ll
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bswap-fold.ll
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bswap-known-bits.ll
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bswap.ll
[InstCombine] Catch more bswap cases missed due to zext and truncs.
2016-05-26 14:58:51 +00:00
builtin-object-size-offset.ll
Calculate __builtin_object_size when pointer depends on a condition
2016-04-13 12:25:25 +00:00
builtin-object-size-ptr.ll
Reland r262337 "calculate builtin_object_size if arg is a removable pointer"
2016-03-09 14:12:47 +00:00
call2.ll
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call_nonnull_arg.ll
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call-cast-target-inalloca.ll
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call-cast-target.ll
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call-intrinsics.ll
Revert "Change memcpy/memset/memmove to have dest and source alignments."
2015-11-19 05:56:52 +00:00
call.ll
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canonicalize_branch.ll
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cast_ptr.ll
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cast-call-combine.ll
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cast-callee-deopt-bundles.ll
[InstCombine] Don't drop operand bundles
2015-11-25 00:42:19 +00:00
cast-int-fcmp-eq-0.ll
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cast-mul-select.ll
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cast-set.ll
auto-ggenerate checks
2016-07-16 16:24:06 +00:00
cast.ll
[InstCombine] LogicOpc (zext X), C --> zext (LogicOpc X, C) (PR28476)
2016-07-21 00:24:18 +00:00
ceil.ll
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compare-alloca.ll
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compare-signs.ll
auto-generate checks
2016-04-29 16:39:37 +00:00
compare-udiv.ll
[InstCombine] Fold icmp ugt/ult (udiv i32 C2, X), C1.
2016-05-10 20:22:09 +00:00
compare-unescaped.ll
Fold compares irrespective of whether allocation can be elided
2016-05-03 14:58:21 +00:00
constant-expr-datalayout.ll
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constant-fold-address-space-pointer.ll
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constant-fold-alias.ll
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constant-fold-compare.ll
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constant-fold-gep.ll
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constant-fold-hang.ll
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constant-fold-math.ll
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convergent.ll
InstCombine: Don't strip convergent from intrinsic callsites
2016-06-20 19:04:44 +00:00
copysign.ll
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cos-1.ll
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cos-2.ll
[LibCallSimplifier] don't get fooled by a fake sqrt()
2016-01-20 17:41:14 +00:00
cos-intrinsic.ll
Propagate Undef in llvm.cos Intrinsic
2016-04-08 18:21:11 +00:00
CPP_min_max.ll
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crash.ll
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ctpop.ll
Tighten known bits for ctpop based on zero input bits
2015-10-14 22:42:12 +00:00
dce-iterate.ll
…
deadcode.ll
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debug-line.ll
[PR27284] Reverse the ownership between DICompileUnit and DISubprogram.
2016-04-15 15:57:41 +00:00
debuginfo.ll
[PR27284] Reverse the ownership between DICompileUnit and DISubprogram.
2016-04-15 15:57:41 +00:00
default-alignment.ll
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demand_shrink_nsw.ll
…
demorgan-zext.ll
[InstCombine] LogicOpc (zext X), C --> zext (LogicOpc X, C) (PR28476)
2016-07-21 00:24:18 +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
[InstCombine] regenerate checks
2016-05-02 15:06:55 +00:00
div.ll
[InstCombine] shrink type of sdiv if dividend is sexted and constant divisor is small enough (PR28153)
2016-06-27 22:27:11 +00:00
double-float-shrink-1.ll
[LibCallSimplifier] don't get fooled by a fake fmin()
2016-01-21 20:19:54 +00:00
double-float-shrink-2.ll
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enforce-known-alignment.ll
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err-rep-cold.ll
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exact.ll
[InstCombine] use m_APInt for div --> ashr fold
2016-06-27 17:25:57 +00:00
exp2-1.ll
AMDGPU: mark ldexp LibCalls as unavailable
2015-12-15 17:24:15 +00:00
exp2-2.ll
…
ExtractCast.ll
…
extractvalue.ll
Instcombine: destructor loads of structs that do not contains padding
2015-12-15 01:44:07 +00:00
fabs.ll
transform obscured FP sign bit ops into a fabs/fneg using TLI hook
2016-06-02 20:01:37 +00:00
fast-math-scalarization.ll
Fix an issue where fast math flags were dropped during scalarization.
2016-03-01 19:35:52 +00:00
fast-math.ll
[LibCallSimplifier] don't allow sqrt transform unless all ops are unsafe
2016-01-11 22:50:36 +00:00
fcmp-select.ll
…
fcmp-special.ll
regenerate checks
2016-06-05 17:29:45 +00:00
fcmp.ll
…
fdiv.ll
…
ffs-1.ll
TvOS: add missing support for some libcalls.
2015-11-02 18:00:00 +00:00
float-shrink-compare.ll
…
fmul.ll
InstCombine: fabs(x) * fabs(x) -> x * x
2016-01-30 05:02:00 +00:00
fneg-ext.ll
…
fold-bin-operand.ll
…
fold-calls.ll
…
fold-fops-into-selects.ll
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fold-phi-load-metadata.ll
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fold-phi.ll
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fold-sqrt-sqrtf.ll
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fold-vector-select.ll
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fold-vector-zero.ll
…
fp-ret-bitcast.ll
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fpcast.ll
…
fpextend_x86.ll
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fpextend.ll
…
fprintf-1.ll
[IR] Straighten out bundle overload of IRBuilder::CreateCall
2016-02-18 20:57:41 +00:00
fputs-1.ll
…
fputs-opt-size.ll
Code size optimisation: don't rewrite fputs to fwrite when optimising for size
2016-07-07 13:56:23 +00:00
fsub.ll
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fwrite-1.ll
…
gc.relocate.ll
Don't propagate dereferenceable attribute through gc.relocate in InstCombine
2016-02-11 11:22:46 +00:00
gep-addrspace.ll
…
gep-sext.ll
…
gepgep.ll
…
gepphigep.ll
[InstCombine] Teach instcombine not to create extra PHI nodes when folding GEPs
2015-10-26 10:25:05 +00:00
getelementptr-folding.ll
[ConstantFold] Fix incorrect index rewrites for GEPs
2016-05-26 07:08:05 +00:00
getelementptr.ll
[ConstantFolding] Don't treat negative GEP offsets as positive
2016-07-13 05:16:16 +00:00
hoist_instr.ll
…
icmp-logical.ll
…
icmp-range.ll
…
icmp-shr.ll
…
icmp-vec.ll
[InstCombine] Don't crash when trying to take an element of a ConstantExpr.
2016-05-17 12:08:55 +00:00
icmp.ll
Revert "Revert "Revert "InstCombine: Reduce trunc (shl x, K) width."""
2016-06-17 23:36:38 +00:00
idioms.ll
…
indexed-gep-compares.ll
Re-commit r257064, after it was reverted in r257340.
2016-01-15 15:52:05 +00:00
inline-intrinsic-assert.ll
[LibCallSimplifier] use instruction-level fast-math-flags to transform sqrt calls
2016-01-11 22:34:19 +00:00
insert-extract-shuffle.ll
[InstCombine] avoid an insertelement transformation that induces the opposite extractelement fold (PR26354)
2016-01-29 20:21:02 +00:00
insert-val-extract-elem.ll
Optimize store of "bitcast" from vector to aggregate.
2016-04-25 22:22:39 +00:00
IntPtrCast.ll
…
intrinsics.ll
…
invariant.ll
…
invoke.ll
…
isascii-1.ll
…
isdigit-1.ll
…
JavaCompare.ll
…
known_align.ll
…
LandingPadClauses.ll
[EH] Keep filter clauses for types that have been caught.
2015-11-17 20:13:04 +00:00
lifetime.ll
[PR27284] Reverse the ownership between DICompileUnit and DISubprogram.
2016-04-15 15:57:41 +00:00
load3.ll
…
load_combine_aa.ll
…
load-bitcast32.ll
Re-apply r238452, the bug was in clang and was fixed in r260567.
2016-02-11 22:30:41 +00:00
load-bitcast64.ll
Re-apply r238452, the bug was in clang and was fixed in r260567.
2016-02-11 22:30:41 +00:00
load-cmp.ll
[InstCombine] regenerate checks
2016-05-02 15:21:41 +00:00
load-combine-metadata-2.ll
Preserve load alignment and dereferenceable metadata during some transformations
2015-11-02 17:53:51 +00:00
load-combine-metadata-3.ll
Preserve load alignment and dereferenceable metadata during some transformations
2015-11-02 17:53:51 +00:00
load-combine-metadata-4.ll
Preserve load alignment and dereferenceable metadata during some transformations
2015-11-02 17:53:51 +00:00
load-combine-metadata.ll
Handle non-constant shifts in computeKnownBits, and use computeKnownBits for constant folding in InstCombine/Simplify
2015-10-23 20:37:08 +00:00
load-select.ll
…
load.ll
…
loadstore-alignment.ll
…
loadstore-metadata.ll
Preserve load alignment and dereferenceable metadata during some transformations
2015-11-02 17:53:51 +00:00
log-pow-nofastmath.ll
[SimplifyLibCalls] Remove useless bits of this tests.
2015-11-30 19:38:35 +00:00
log-pow.ll
[LibCallSimplifier] use instruction-level fast-math-flags to transform log calls
2016-01-11 23:31:48 +00:00
logical-select.ll
[InstCombine] extend vector select matching for non-splat constants
2016-07-13 18:07:02 +00:00
lshr-phi.ll
…
malloc-free-delete.ll
[Analysis] Become aware of MSVC's new/delete functions
2015-12-03 22:45:19 +00:00
masked_intrinsics.ll
[InstCombine] Masked loads with undef masks can fold to normal loads
2016-07-14 06:58:42 +00:00
max-of-nots.ll
…
maxnum.ll
…
mem-gep-zidx.ll
Fix a typo in rL265762
2016-04-17 04:30:43 +00:00
memchr.ll
[InstCombine] regenerate checks
2016-05-02 15:25:49 +00:00
memcmp-1.ll
…
memcmp-2.ll
…
memcpy_chk-1.ll
Revert "Change memcpy/memset/memmove to have dest and source alignments."
2015-11-19 05:56:52 +00:00
memcpy_chk-2.ll
…
memcpy-1.ll
…
memcpy-2.ll
…
memcpy-from-global.ll
Revert "Change memcpy/memset/memmove to have dest and source alignments."
2015-11-19 05:56:52 +00:00
memcpy-to-load.ll
Revert "Change memcpy/memset/memmove to have dest and source alignments."
2015-11-19 05:56:52 +00:00
memcpy.ll
Revert "Change memcpy/memset/memmove to have dest and source alignments."
2015-11-19 05:56:52 +00:00
memmove_chk-1.ll
Revert "Change memcpy/memset/memmove to have dest and source alignments."
2015-11-19 05:56:52 +00:00
memmove_chk-2.ll
…
memmove-1.ll
…
memmove-2.ll
…
memmove.ll
Revert "Change memcpy/memset/memmove to have dest and source alignments."
2015-11-19 05:56:52 +00:00
memset2.ll
Revert "Change memcpy/memset/memmove to have dest and source alignments."
2015-11-19 05:56:52 +00:00
memset_chk-1.ll
Re-apply r238452, the bug was in clang and was fixed in r260567.
2016-02-11 22:30:41 +00:00
memset_chk-2.ll
…
memset-1.ll
[LibCallSimplifier] fold memset(malloc(x), 0, x) --> calloc(1, x)
2016-01-26 16:17:24 +00:00
memset-2.ll
…
memset.ll
Revert "Change memcpy/memset/memmove to have dest and source alignments."
2015-11-19 05:56:52 +00:00
merge-icmp.ll
…
min-positive.ll
[InstCombine] (icmp sgt smin(PosA, B) 0) -> (icmp sgt B 0)
2016-03-09 21:05:07 +00:00
minmax-fold.ll
…
minmax-fp.ll
[ValueTracking] matchSelectPattern needs to be more careful around FP
2016-04-29 18:40:34 +00:00
minnum.ll
…
misc-2002.ll
[InstCombine] regenerate checks
2016-04-05 17:24:54 +00:00
mul-masked-bits.ll
[InstCombine] regenerate checks
2016-04-05 17:24:54 +00:00
mul.ll
…
multi-size-address-space-pointer.ll
…
multi-use-or.ll
…
narrow-switch.ll
[InstCombine] shrink switch conditions better (PR24766)
2016-06-30 14:51:21 +00:00
narrow.ll
…
neon-intrinsics.ll
…
no_cgscc_assert.ll
[LibCallSimplifier] use instruction-level fast-math-flags to transform sqrt calls
2016-01-11 22:34:19 +00:00
no-negzero.ll
…
nonnull-attribute.ll
…
not-fcmp.ll
…
not.ll
…
nothrow.ll
…
nsw.ll
…
obfuscated_splat.ll
…
objsize-64.ll
…
objsize-address-space.ll
…
objsize-noverify.ll
…
objsize.ll
Revert "Change memcpy/memset/memmove to have dest and source alignments."
2015-11-19 05:56:52 +00:00
odr-linkage.ll
…
onehot_merge.ll
…
opaque.ll
[InstCombine] Fix assertion when bitcast is converted to gep
2016-05-23 19:23:17 +00:00
or-fcmp.ll
[InstCombine] Simplify and correct folding fcmps with the same children
2016-06-29 20:10:17 +00:00
or-to-xor.ll
update tests to use FileCheck
2016-06-25 17:39:10 +00:00
or-xor.ll
…
or.ll
[InstCombine] check for one-use before turning simple logic op into a select
2016-07-08 17:26:47 +00:00
osx-names.ll
…
overflow-mul.ll
…
overflow.ll
…
OverlappingInsertvalues.ll
…
phi-load-metadata-2.ll
Preserve load alignment and dereferenceable metadata during some transformations
2015-11-02 17:53:51 +00:00
phi-load-metadata-3.ll
Preserve load alignment and dereferenceable metadata during some transformations
2015-11-02 17:53:51 +00:00
phi-load-metadata.ll
Preserve load alignment and dereferenceable metadata during some transformations
2015-11-02 17:53:51 +00:00
phi-merge-gep.ll
…
phi-preserve-ir-flags.ll
[InstCombine] Preserve fast math flags when combining PHIs
2016-04-22 11:21:36 +00:00
phi-select-constexpr.ll
…
phi.ll
Revert "[ValueTracking] Teach computeKnownBits for PHI nodes to compute sign bit for a recurrence with a NSW addition."
2016-06-29 04:57:00 +00:00
pow-1.ll
TvOS: add missing support for some libcalls.
2015-11-02 18:00:00 +00:00
pow-2.ll
…
pow-3.ll
…
pow-4.ll
[LibCallSimplifier] use instruction-level fast-math-flags to transform pow(x, [small integer]) calls
2016-01-19 18:15:12 +00:00
pow-exp-nofastmath.ll
[SimplifyLibCalls] Add a new transformation: pow(exp(x), y) -> exp(x*y)
2015-11-03 20:32:23 +00:00
pow-exp.ll
[LibCallSimplifier] use instruction-level fast-math-flags to transform pow(exp(x)) calls
2016-01-12 17:30:37 +00:00
pow-sqrt.ll
[LibCallSimplifier] use instruction-level fast-math-flags to transform pow(x, 0.5) calls
2016-01-12 19:06:35 +00:00
pr2645-0.ll
…
pr2645-1.ll
…
pr2996.ll
…
pr12251.ll
…
pr12338.ll
…
pr17827.ll
…
pr19420.ll
…
pr20079.ll
…
pr20678.ll
[ConstantFolding, ValueTracking] Fold constants involving bitcasts of ConstantVector
2016-05-04 06:13:33 +00:00
pr21199.ll
…
pr21210.ll
[InstCombine] Sharpended test case in pr21210.ll
2016-04-27 17:19:54 +00:00
pr21651.ll
[InstCombine] shrink switch conditions better (PR24766)
2016-06-30 14:51:21 +00:00
pr21891.ll
…
pr23751.ll
…
pr23809.ll
…
pr24354.ll
…
pr24605.ll
…
pr25745.ll
[InstCombine] Call getCmpPredicateForMinMax only with a valid SPF
2015-12-05 23:44:22 +00:00
pr26992.ll
[InstCombine] Don't insert instructions before a catch switch
2016-03-19 04:39:52 +00:00
pr26993.ll
[SimplifyLibCalls] Only consider sinpi/cospi functions within the same function
2016-03-19 04:53:02 +00:00
pr27236.ll
[InstCombine] Fix miscompile in FoldSPFofSPF
2016-04-08 16:51:49 +00:00
pr27332.ll
[InstCombine] Don't transform compares of calls to functions named fabs{f,l,}
2016-04-15 17:21:03 +00:00
pr28143.ll
[TargetLibraryInfo] Teach isValidProtoForLibFunc about tan
2016-06-15 16:47:23 +00:00
PR7357.ll
…
preserve-sminmax.ll
…
prevent-cmp-merge.ll
[InstCombine] Don't aggressively replace xor with icmp
2016-02-12 18:12:38 +00:00
printf-1.ll
Optimize a printf with a double procent to putchar.
2016-05-09 14:36:16 +00:00
printf-2.ll
[SimplifyLibCalls] Transform printf("%s", "a") -> putchar('a').
2016-03-28 15:54:01 +00:00
printf-3.ll
Add test for r256912
2016-01-07 19:27:16 +00:00
ptr-int-cast.ll
…
puts-1.ll
…
range-check.ll
…
README.txt
…
rem.ll
Add safety check to InstCombiner::commonIRemTransforms
2016-06-05 21:17:04 +00:00
round.ll
…
sdiv-1.ll
…
sdiv-2.ll
…
select-2.ll
…
select-cmp-br.ll
…
select-cmp-cttz-ctlz.ll
…
select-crash-noverify.ll
…
select-crash.ll
…
select-extractelement.ll
…
select-implied.ll
[ValueTracking] Improve isImpliedCondition for matching LHS and Imm RHSs.
2016-05-05 15:39:18 +00:00
select-load-call.ll
…
select-select.ll
…
select.ll
[InstCombine] LogicOpc (zext X), C --> zext (LogicOpc X, C) (PR28476)
2016-07-21 00:24:18 +00:00
set.ll
fix checks
2016-06-05 17:54:56 +00:00
setcc-strength-reduce.ll
…
sext.ll
…
shift-shift.ll
[InstCombine] consolidate tests for related bugs
2016-04-11 17:58:37 +00:00
shift-sra.ll
…
shift.ll
[ValueTracking, InstCombine] extend isKnownToBeAPowerOfTwo() to handle vector splat constants
2016-05-22 15:41:53 +00:00
shufflemask-undef.ll
…
shufflevec-constant.ll
[InstCombine] regenerate checks
2016-04-05 17:24:54 +00:00
sign-test-and-or.ll
minimize tests and auto-generate checks
2016-07-20 17:58:20 +00:00
signed-comparison.ll
[InstCombine] allow vector constants for cast+icmp fold
2016-06-04 22:04:05 +00:00
signext.ll
auto-generate checks
2016-07-16 16:27:58 +00:00
simplify-demanded-bits-pointer.ll
…
simplify-libcalls.ll
Revert "Change memcpy/memset/memmove to have dest and source alignments."
2015-11-19 05:56:52 +00:00
sincospi.ll
[SimplifyLibCalls] Don't depend on a called function having a name, it might be an indirect call.
2015-11-26 09:51:17 +00:00
sink_instruction.ll
…
sink-into-catchswitch.ll
[InstCombine] Don't sink an instr after a catchswitch
2016-04-01 17:28:17 +00:00
sitofp.ll
…
sprintf-1.ll
Revert "[SimplifyLibCalls] sprintf doesn't copy null bytes"
2016-04-26 21:04:47 +00:00
sqrt-nofast.ll
[SimplifyLibCalls] Add test to ensure transform is not executed if fast-math
2015-10-31 20:59:32 +00:00
sqrt.ll
…
srem1.ll
…
srem-simplify-bug.ll
…
srem.ll
…
stack-overalign.ll
Revert "Change memcpy/memset/memmove to have dest and source alignments."
2015-11-19 05:56:52 +00:00
stacksaverestore.ll
[InstCombine] Be more conservative about removing stackrestore
2016-02-27 00:53:54 +00:00
statepoint.ll
[gc.statepoint] Change gc.statepoint intrinsic's return type to token type instead of i32 type
2015-12-26 07:54:32 +00:00
store.ll
[InstCombine] Extend peephole DSE to handle unordered atomics
2015-12-17 22:19:27 +00:00
stpcpy_chk-1.ll
Revert "Change memcpy/memset/memmove to have dest and source alignments."
2015-11-19 05:56:52 +00:00
stpcpy_chk-2.ll
…
stpcpy-1.ll
…
stpcpy-2.ll
…
strcat-1.ll
…
strcat-2.ll
…
strcat-3.ll
…
strchr-1.ll
…
strchr-2.ll
…
strcmp-1.ll
…
strcmp-2.ll
…
strcpy_chk-1.ll
Revert "Change memcpy/memset/memmove to have dest and source alignments."
2015-11-19 05:56:52 +00:00
strcpy_chk-2.ll
…
strcpy_chk-64.ll
…
strcpy-1.ll
…
strcpy-2.ll
…
strcspn-1.ll
…
strcspn-2.ll
…
strlen-1.ll
Simplify strlen to a subtraction for certain cases.
2016-04-13 14:31:06 +00:00
strlen-2.ll
…
strncat-1.ll
…
strncat-2.ll
…
strncat-3.ll
…
strncmp-1.ll
…
strncmp-2.ll
…
strncpy_chk-1.ll
Revert "Change memcpy/memset/memmove to have dest and source alignments."
2015-11-19 05:56:52 +00:00
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
[attrs] Extract the pure inference of function attributes into
2015-12-27 08:41:34 +00:00
struct-assign-tbaa.ll
Revert "Change memcpy/memset/memmove to have dest and source alignments."
2015-11-19 05:56:52 +00:00
sub-xor.ll
…
sub.ll
…
switch-truncate-crash.ll
…
tan-nofastmath.ll
[SimplifyLibCalls] New transformation: tan(atan(x)) -> x
2015-11-04 23:36:56 +00:00
tan.ll
[LibCallSimplifier] use instruction-level fast-math-flags for tan/atan transform
2016-01-06 19:23:35 +00:00
tbaa-store-to-load.ll
[InstCombine] Don't widen metadata on store-to-load forwarding
2016-06-16 02:33:42 +00:00
toascii-1.ll
…
token.ll
[InstructionCombining] prepareICWorklistFromFunction halts in infinite loop with instructions of token type
2016-01-04 23:28:57 +00:00
trunc.ll
Revert "InstCombine rule to fold truncs whose value is available"
2016-07-08 22:15:08 +00:00
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
Explode store of arrays in instcombine
2016-03-02 22:36:45 +00:00
urem-simplify-bug.ll
…
urem.ll
use FileCheck instead of grep for exact checking
2016-05-20 20:07:18 +00:00
vararg.ll
[InstCombine] Remove trivially empty va_start/va_end and va_copy/va_end ranges.
2016-05-10 09:24:49 +00:00
vec_demanded_elts.ll
[InstCombine][AVX] Split off VPERMILVAR tests and added additional tests for UNDEF mask elements
2016-04-30 07:32:19 +00:00
vec_extract_2elts.ll
…
vec_extract_elt.ll
…
vec_extract_var_elt.ll
…
vec_insertelt.ll
…
vec_narrow.ll
…
vec_phi_extract.ll
[InstCombine] scalarizePHI should not assume the code it sees has been CSE'd
2016-06-06 23:38:33 +00:00
vec_sext.ll
revert r262424 because there's a *clang test* for AArch64 that checks -O3 asm output
2016-03-02 01:04:09 +00:00
vec_shuffle.ll
[InstCombine] fix propagation of fast-math-flags
2015-11-24 17:51:20 +00:00
vector_gep1.ll
…
vector_gep2.ll
Fixed GEP visitor in the InstCombine pass.
2015-11-15 08:19:35 +00:00
vector-casts.ll
…
vector-mul.ll
…
vector-srem.ll
…
vector-type.ll
…
volatile_store.ll
[InstCombine] regenerate checks
2016-04-05 17:24:54 +00:00
vsx-unaligned.ll
…
weak-symbols.ll
…
win-math.ll
…
x86-avx2.ll
[InstCombine][SSE] Added support to VPERMD/VPERMPS to shuffle combine to accept UNDEF elements.
2016-05-01 20:43:02 +00:00
x86-avx.ll
Dropped FIXME comment
2016-05-01 20:33:25 +00:00
x86-crc32-demanded.ll
…
x86-f16c.ll
[InstCombine][X86] Regenerate SSE combine tests as part of setup for D17490
2016-04-19 12:56:46 +00:00
x86-insertps.ll
…
x86-masked-memops.ll
Support arbitrary addrspace pointers in masked load/store intrinsics
2016-06-28 18:27:25 +00:00
x86-movmsk.ll
[InstCombine][SSE] Add MOVMSK constant folding (PR27982)
2016-06-07 08:18:35 +00:00
x86-pshufb.ll
[InstCombine][SSE] Added support to PSHUFB to shuffle combine to accept UNDEF elements.
2016-05-01 19:26:21 +00:00
x86-sse2.ll
[InstCombine][SSE] Reduce DIVSS/DIVSD to FDIV if only first element is required
2016-04-24 18:35:59 +00:00
x86-sse4a.ll
[InstCombine][X86] Regenerate SSE combine tests as part of setup for D17490
2016-04-19 12:56:46 +00:00
x86-sse41.ll
[InstCombine][SSE] Demanded vector elements for scalar intrinsics (Part 2 of 2)
2016-04-24 18:23:14 +00:00
x86-sse.ll
[InstCombine][SSE] Reduce DIVSS/DIVSD to FDIV if only first element is required
2016-04-24 18:35:59 +00:00
x86-vector-shifts.ll
[InstCombine][AVX2] Add support for simplifying AVX2 per-element shifts to native shifts
2016-06-07 10:27:15 +00:00
x86-vperm2.ll
…
x86-xop.ll
[InstCombine][SSE] Demanded vector elements for scalar intrinsics (Part 2 of 2)
2016-04-24 18:23:14 +00:00
xor2.ll
…
xor-undef.ll
…
xor.ll
add more tests for zexty xor sandwiches
2016-07-13 18:58:55 +00:00
zero-point-zero-add.ll
[InstCombine] We folded an fcmp to an i1 instead of a vector of i1
2016-04-13 06:55:52 +00:00
zeroext-and-reduce.ll
[InstCombine] LogicOpc (zext X), C --> zext (LogicOpc X, C) (PR28476)
2016-07-21 00:24:18 +00:00
zext-bool-add-sub.ll
…
zext-fold.ll
[InstCombine] regenerate checks
2016-04-05 17:24:54 +00:00
zext-or-icmp.ll
minimize test and use FileCheck
2016-02-23 22:03:44 +00:00
zext.ll
[InstCombine] LogicOpc (zext X), C --> zext (LogicOpc X, C) (PR28476)
2016-07-21 00:24:18 +00:00

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.
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