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llvm-6502/test/Transforms/InstCombine
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Akira Hatanaka 38537634e2 InstCombine: Narrow switch instructions using known bits. 
Truncate the operands of a switch instruction to a narrower type if the upper
bits are known to be all ones or zeros.

rdar://problem/17720004


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219832 91177308-0d34-0410-b5e6-96231b3b80d8
2014-10-15 19:05:50 +00:00
..
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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2004-08-09-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
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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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2005-06-16-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
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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
Use "weak alias" instead of "alias weak"
2014-07-30 22:51:54 +00:00
2007-09-17-AliasConstFold2.ll
Use "weak alias" instead of "alias weak"
2014-07-30 22:51:54 +00:00
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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2008-05-17-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-AndICmp.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
IR: Fold away compares between GV GEPs and GVs
2014-07-04 22:05:26 +00:00
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
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2011-06-13-nsw-alloca.ll
InstCombine: mul to shl shouldn't preserve nsw
2014-10-11 10:19:52 +00:00
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
AArch64/ARM64: move ARM64 into AArch64's place
2014-05-24 12:50:23 +00:00
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
Allow aliases to be unnamed_addr.
2014-06-06 01:20:28 +00:00
2012-08-28-udiv_ashl.ll
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2012-09-17-ZeroSizedAlloca.ll
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2012-09-24-MemcpyFromGlobalCrash.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
This removes TODO added in http://reviews.llvm.org/D3658
2014-06-12 14:06:00 +00:00
abs-1.ll
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add2.ll
InstCombine: mul to shl shouldn't preserve nsw
2014-10-11 10:19:52 +00:00
add3.ll
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add-shrink.ll
Convert test to FileCheck.
2014-06-02 21:23:54 +00:00
add-sitofp.ll
[InstCombine] mark ADD with nuw if no unsigned overflow
2014-06-17 00:42:07 +00:00
add.ll
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addnegneg.ll
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AddOverFlow.ll
[ValueTracking] Extend range metadata to call/invoke
2014-06-19 16:50:16 +00:00
addrspacecast.ll
InstCombine: Canonicalize addrspacecast between different element types
2014-06-06 21:52:55 +00:00
adjust-for-sminmax.ll
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align-2d-gep.ll
Make instsimplify's analysis of icmp eq/ne use computeKnownBits to determine whether the icmp is always true or false. Patch by Suyog Sarda!
2014-06-19 03:35:49 +00:00
align-addr.ll
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align-attr.ll
Make use of the align parameter attribute for all pointer arguments
2014-07-22 16:58:55 +00:00
align-external.ll
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alloca.ll
InstCombine: don't drop 'inalloca' in PromoteCastOfAllocation (PR19569)
2014-04-28 17:40:03 +00:00
and2.ll
InstCombine: Turn (x != 0 & x <u C) into the canonical range check form (x-1 <u C-1)
2014-10-12 14:02:34 +00:00
and-compare.ll
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and-fcmp.ll
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and-not-or.ll
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and-or-and.ll
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and-or-not.ll
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and-or.ll
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and-xor-merge.ll
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and-xor-or.ll
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and.ll
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apint-add1.ll
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apint-add2.ll
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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
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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-or1.ll
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apint-or2.ll
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apint-rem1.ll
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apint-rem2.ll
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apint-select.ll
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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
InstCombine: Fix miscompile in X % -Y -> X % Y transform
2014-10-13 22:37:51 +00:00
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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assume2.ll
Add additional patterns for @llvm.assume in ValueTracking
2014-09-07 19:21:07 +00:00
assume-loop-align.ll
Make use of @llvm.assume in ValueTracking (computeKnownBits, etc.)
2014-09-07 18:57:58 +00:00
assume-redundant.ll
[InstCombine] Remove redundant @llvm.assume intrinsics
2014-10-04 21:27:06 +00:00
assume.ll
Check for all known bits on ret in InstCombine
2014-09-07 21:28:34 +00:00
atomic.ll
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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
Allow alias to point to an arbitrary ConstantExpr.
2014-06-03 02:41:57 +00:00
bitcast-bigendian.ll
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bitcast-sext-vector.ll
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bitcast-store.ll
[InstCombine] Don't fold bitcast into store if it would need addrspacecast
2014-03-25 17:21:41 +00:00
bitcast-vec-canon.ll
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bitcast-vec-uniform.ll
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bitcast-vector-fold.ll
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bitcast.ll
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bitcount.ll
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bittest.ll
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blend_x86.ll
Post-commit fixes for r209643
2014-05-27 16:54:33 +00:00
bswap-fold.ll
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bswap.ll
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call2.ll
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call-cast-target-inalloca.ll
IR: Conservatively verify inalloca arguments
2014-04-30 17:22:00 +00:00
call-cast-target.ll
Don't refuse to transform constexpr(call(arg, ...)) to call(constexpr(arg), ...)) just because the function has multiple return values even if their return types are the same. Patch by Eduard Burtescu!
2014-01-18 22:47:12 +00:00
call-intrinsics.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-call-combine.ll
Make sure that value handle users see the transformation of an indirect call to a direct call. This is important for the CallGraph iteration. Patch by Björn Steinbrink!
2014-02-20 23:00:15 +00:00
cast-mul-select.ll
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cast-set.ll
Add CHECK-LABELs
2014-01-22 22:32:58 +00:00
cast.ll
InstCombine: mul to shl shouldn't preserve nsw
2014-10-11 10:19:52 +00:00
ceil.ll
Allow constant folding of ceil function whenever feasible
2014-03-24 04:36:06 +00:00
compare-signs.ll
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constant-expr-datalayout.ll
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constant-fold-address-space-pointer.ll
Canonicalize addrspacecast ConstExpr between different pointer types
2014-06-15 21:40:57 +00:00
constant-fold-compare.ll
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constant-fold-gep.ll
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constant-fold-math.ll
Make the sqrt intrinsic return undef for a negative input.
2014-10-01 20:36:33 +00:00
copysign.ll
Allow constant folding of copysign
2014-03-06 05:32:52 +00:00
cos-1.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
Revert "Revert "DI: Fold constant arguments into a single MDString""
2014-10-03 20:01:09 +00:00
debuginfo.ll
Revert "Revert "DI: Fold constant arguments into a single MDString""
2014-10-03 20:01:09 +00:00
descale-zero.ll
InstCombine: Fix a crash in Descale for multiply-by-zero
2014-07-10 17:13:27 +00:00
devirt.ll
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disable-simplify-libcalls.ll
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distribute.ll
This patch removed duplicate code for matching patterns
2014-06-26 08:57:33 +00:00
div-shift-crash.ll
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div-shift.ll
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div.ll
InstCombine: Don't miscompile X % ((Pow2 << A) >>u B)
2014-10-14 20:28:40 +00:00
double-float-shrink-1.ll
Disable transforms that introduce calls to exp10*() on Linux due to
2013-12-28 02:40:19 +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
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exp2-1.ll
SimplifyLibCalls: Push TLI through the exp2->ldexp transform.
2014-02-04 20:27:23 +00:00
exp2-2.ll
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ExtractCast.ll
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extractvalue.ll
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fabs.ll
Optimize away fabs() calls when input is squared (known positive).
2014-10-14 20:43:11 +00:00
fast-math.ll
InstCombine: Refactor fmul/fdiv combines to handle vectors.
2014-01-19 13:36:27 +00:00
fcmp-select.ll
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fcmp-special.ll
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fcmp.ll
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fdiv.ll
Fix all the remaining lost-fast-math-flags bugs I've been able to find. The most important of these are cases in the generic logic for combining BinaryOperators.
2014-01-20 07:44:53 +00:00
ffs-1.ll
[InstCombine] mark ADD with nuw if no unsigned overflow
2014-06-17 00:42:07 +00:00
float-shrink-compare.ll
Enable double to float shrinking optimizations for binary functions like 'fmin/fmax'. Fix radar:15283121
2013-12-16 22:42:40 +00:00
fmul.ll
Remove unused function attribute params.
2014-10-02 21:12:04 +00:00
fneg-ext.ll
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fold-bin-operand.ll
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fold-calls.ll
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fold-fops-into-selects.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
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fp-ret-bitcast.ll
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fpcast.ll
Fix more instances of dropped fast math flags when optimizing FADD instructions. All found by inspection (aka grep).
2014-01-18 00:48:14 +00:00
fpextend_x86.ll
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fpextend.ll
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fprintf-1.ll
Fix broken FileCheck prefix
2014-02-26 19:51:08 +00:00
fputs-1.ll
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fsub.ll
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fwrite-1.ll
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gep-addrspace.ll
Fix PR19270 - type mismatch caused by invalid optimization.
2014-04-03 17:51:58 +00:00
gepgep.ll
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gepphigep.ll
Add support for combining GEPs across PHI nodes
2014-05-29 20:29:47 +00:00
getelementptr.ll
Revert "Revert two GEP-related InstCombine commits"
2014-09-01 21:10:02 +00:00
hoist_instr.ll
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icmp-logical.ll
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icmp-shr.ll
[InstCombine] Fix wrong folding of constant comparisons involving ashr and negative values.
2014-10-09 12:41:49 +00:00
icmp.ll
InstSimplify: Move a transform from InstCombine to InstSimplify
2014-08-28 03:34:28 +00:00
idioms.ll
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insert-extract-shuffle.ll
InstCombine: form shuffles from wider range of insert/extractelements
2014-03-07 10:24:44 +00:00
IntPtrCast.ll
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intrinsics.ll
InstCombine: Strength reduce sadd.with.overflow into a regular nsw add if we can prove that it cannot overflow.
2014-07-04 10:22:21 +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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JavaCompare.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-addrspace-cast.ll
Fix a bug in InstCombine where we would incorrectly attempt to construct a
2014-03-13 22:51:43 +00:00
load-cmp.ll
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load-select.ll
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load.ll
Convert test to FileCheck.
2014-07-15 00:07:27 +00:00
loadstore-alignment.ll
Teach computeKnownBits to look through addrspacecast.
2014-07-15 01:55:03 +00:00
logical-select.ll
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lshr-phi.ll
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malloc-free-delete.ll
PR21145: Teach LLVM about C++14 sized deallocation functions.
2014-10-03 20:17:06 +00:00
memcmp-1.ll
InstCombine: Annotate sub with nsw when we prove it's safe
2014-08-19 23:36:30 +00:00
memcmp-2.ll
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memcpy_chk-1.ll
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memcpy_chk-2.ll
…
memcpy-1.ll
…
memcpy-2.ll
…
memcpy-from-global.ll
InstCombine: Canonicalize addrspacecast between different element types
2014-06-06 21:52:55 +00:00
memcpy-to-load.ll
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memcpy.ll
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memmove_chk-1.ll
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memmove_chk-2.ll
…
memmove-1.ll
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memmove-2.ll
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memmove.ll
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memset2.ll
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memset_chk-1.ll
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memset_chk-2.ll
…
memset-1.ll
…
memset-2.ll
…
memset.ll
…
merge-icmp.ll
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mul-masked-bits.ll
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mul.ll
InstCombine: Teach most integer add/sub/mul/div combines how to deal with vectors.
2014-01-19 15:24:22 +00:00
multi-size-address-space-pointer.ll
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multi-use-or.ll
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narrow-switch.ll
InstCombine: Narrow switch instructions using known bits.
2014-10-15 19:05:50 +00:00
narrow.ll
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neon-intrinsics.ll
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no-negzero.ll
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not-fcmp.ll
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not.ll
…
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
Use "weak alias" instead of "alias weak"
2014-07-30 22:51:54 +00:00
objsize.ll
Use "weak alias" instead of "alias weak"
2014-07-30 22:51:54 +00:00
odr-linkage.ll
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onehot_merge.ll
InstCombine: Replace a hand-rolled version of isKnownToBeAPowerOfTwo with the real thing.
2014-01-19 16:48:41 +00:00
or-fcmp.ll
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or-to-xor.ll
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or-xor.ll
InstCombine: Fold ((A | B) & C1) ^ (B & C2) -> (A & C1) ^ B if C1^C2=-1
2014-08-21 05:14:48 +00:00
or.ll
New InstCombine pattern: (icmp ult/ule (A + C1), C3) | (icmp ult/ule (A + C2), C3) to (icmp ult/ule ((A & ~(C1 ^ C2)) + max(C1, C2)), C3) under certain condition
2014-08-20 22:55:40 +00:00
osx-names.ll
…
overflow-mul.ll
InstCombine: Disable umul.with.overflow recognition for vectors.
2014-06-24 10:47:52 +00:00
overflow.ll
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OverlappingInsertvalues.ll
[InstCombine] Some cleanup in optimization of redundant insertvalue instructions.
2014-05-08 19:50:24 +00:00
phi-merge-gep.ll
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phi-select-constexpr.ll
Don't use isNullValue to evaluate ConstantExpr
2013-12-06 21:48:36 +00:00
phi.ll
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pow-1.ll
Change math intrinsic attributes from readonly to readnone. These
2014-03-06 00:18:15 +00:00
pow-2.ll
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pow-3.ll
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pr2645-0.ll
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pr2645-1.ll
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pr2996.ll
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pr8547.ll
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pr12251.ll
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pr12338.ll
Revert "[InstCombine] re-commit r218721 with fix for pr21199"
2014-10-08 16:30:22 +00:00
pr17827.ll
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pr19420.ll
Revert "Revert r206045, "Fix shift by constants for vector.""
2014-04-14 21:50:37 +00:00
pr20059.ll
removed duplicate testcase
2014-07-09 17:49:58 +00:00
pr20079.ll
IR: Fold away compares between GV GEPs and GVs
2014-07-04 22:05:26 +00:00
PR7357.ll
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preserve-sminmax.ll
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printf-1.ll
Fix broken FileCheck prefixes
2014-02-26 22:29:11 +00:00
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
R600/SI: Add intrinsics for various math instructions.
2014-06-19 01:19:19 +00:00
README.txt
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rem.ll
Add back commit r210029.
2014-06-02 22:01:04 +00:00
round.ll
Allow constant folding of round function whenever feasible
2014-03-07 04:36:21 +00:00
sdiv-1.ll
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sdiv-2.ll
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select-2.ll
Fix all the remaining lost-fast-math-flags bugs I've been able to find. The most important of these are cases in the generic logic for combining BinaryOperators.
2014-01-20 07:44:53 +00:00
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
Remove a very old instcombine where we would turn sequences of selects into
2014-02-12 23:54:07 +00:00
select.ll
[InstCombine] mark ADD with nuw if no unsigned overflow
2014-06-17 00:42:07 +00:00
set.ll
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setcc-strength-reduce.ll
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sext.ll
Add back commit r210029.
2014-06-02 22:01:04 +00:00
shift-sra.ll
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shift.ll
Revert "Revert r206045, "Fix shift by constants for vector.""
2014-04-14 21:50:37 +00:00
shufflemask-undef.ll
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shufflevec-constant.ll
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sign-test-and-or.ll
InstCombine: Teach icmp merging about the equivalence of bit tests and UGE/ULT with a power of 2.
2014-02-11 21:09:03 +00:00
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
ARM64: initial backend import
2014-03-29 10:18:08 +00:00
sink_instruction.ll
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sitofp.ll
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sprintf-1.ll
Fix broken FileCheck prefixes
2014-02-26 22:29:11 +00:00
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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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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strcat-2.ll
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strcat-3.ll
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strchr-1.ll
Add strchr(p, 0) -> p + strlen(p) to SimplifyLibCalls
2014-02-04 05:55:16 +00:00
strchr-2.ll
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strcmp-1.ll
InstCombine: Annotate sub with nsw when we prove it's safe
2014-08-19 23:36:30 +00:00
strcmp-2.ll
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strcpy_chk-1.ll
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strcpy_chk-2.ll
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strcpy_chk-64.ll
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strcpy-1.ll
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strcpy-2.ll
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strcspn-1.ll
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strcspn-2.ll
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strlen-1.ll
Fold strlen(expr ? "str1" : "str2") to x ? len1 : len2. This fires about 330 times in a bootstrap of clang.
2014-05-02 04:11:45 +00:00
strlen-2.ll
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strncat-1.ll
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strncat-2.ll
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strncat-3.ll
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strncmp-1.ll
InstCombine: Annotate sub with nsw when we prove it's safe
2014-08-19 23:36:30 +00:00
strncmp-2.ll
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strncpy_chk-1.ll
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strncpy_chk-2.ll
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strncpy-1.ll
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strncpy-2.ll
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strpbrk-1.ll
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strpbrk-2.ll
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strrchr-1.ll
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strrchr-2.ll
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strspn-1.ll
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strstr-1.ll
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strstr-2.ll
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strto-1.ll
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struct-assign-tbaa.ll
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sub-xor.ll
InstCombine: Annotate sub with nsw when we prove it's safe
2014-08-19 23:36:30 +00:00
sub.ll
InstCombine: Fix miscompile in X % -Y -> X % Y transform
2014-10-13 22:37:51 +00:00
toascii-1.ll
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trunc.ll
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udiv_select_to_select_shift.ll
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udiv-simplify-bug-0.ll
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udiv-simplify-bug-1.ll
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udivrem-change-width.ll
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urem-simplify-bug.ll
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urem.ll
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vec_demanded_elts.ll
Also handle ConstantAggregateZero when optimizing vpermilvar*.
2014-04-29 22:20:40 +00:00
vec_extract_2elts.ll
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vec_extract_elt.ll
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vec_extract_var_elt.ll
InstCombine: Don't try to use aggregate elements of ConstantExprs.
2014-01-24 19:02:37 +00:00
vec_insertelt.ll
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vec_narrow.ll
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vec_phi_extract.ll
InstCombine: Teach most integer add/sub/mul/div combines how to deal with vectors.
2014-01-19 15:24:22 +00:00
vec_sext.ll
InstCombine: Modernize a bunch of cast combines.
2014-01-19 20:05:13 +00:00
vec_shuffle.ll
InstCombine: Don't try to reorder shuffles where the mask is a ConstantExpr.
2014-06-24 10:38:10 +00:00
vector_gep1.ll
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vector_gep2.ll
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vector-casts.ll
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vector-mul.ll
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vector-srem.ll
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vector-type.ll
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volatile_store.ll
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weak-symbols.ll
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win-math.ll
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x86-crc32-demanded.ll
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xor2.ll
[InstCombine] Remove redundant test case.
2014-09-16 08:50:10 +00:00
xor-undef.ll
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xor.ll
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zero-point-zero-add.ll
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zeroext-and-reduce.ll
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zext-bool-add-sub.ll
Add back commit r210029.
2014-06-02 22:01:04 +00:00
zext-fold.ll
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zext-or-icmp.ll
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zext.ll
InstCombine: Modernize a bunch of cast combines.
2014-01-19 20:05:13 +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.