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llvm-project/llvm/test/Transforms/InstCombine
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David Majnemer a92687d636 InstCombine: Correctly propagate NSW/NUW for x-(-A) -> x+A 
We can only propagate the nsw bits if both subtraction instructions are
marked with the appropriate bit.

N.B.  We only propagate the nsw bit in InstCombine because the nuw case
is already handled in InstSimplify.

This fixes PR20189.

llvm-svn: 214385
2014-07-31 04:49:29 +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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2008-02-16-SDivOverflow.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
Add addrspacecast instruction.
2013-11-15 01:34:59 +00:00
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
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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
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
Added instruction combine to transform few more negative values addition to subtraction (Part 3)
2014-06-27 07:47:35 +00:00
add3.ll
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add4.ll
InstCombine: Refactor fmul/fdiv combines to handle vectors.
2014-01-19 13:36:27 +00:00
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
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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-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
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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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assume.ll
Canonicalization for @llvm.assume
2014-07-25 21:45:17 +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
Add addrspacecast instruction.
2013-11-15 01:34:59 +00:00
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
Add back commit r210029.
2014-06-02 22:01:04 +00:00
ceil.ll
Allow constant folding of ceil function whenever feasible
2014-03-24 04:36:06 +00:00
compare-signs.ll
InstCombine: fold (A >> C) == (B >> C) --> (A^B) < (1 << C) for constant Cs.
2013-11-16 16:00:48 +00:00
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
Fix another constant folding address space place I missed.
2013-11-04 20:46:52 +00:00
constant-fold-math.ll
ConstantFolding: Also fold the vector overloads of our math intrinsics.
2014-03-05 19:41:48 +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
Debug Info: update testing cases to specify the debug info version number.
2013-11-22 21:49:45 +00:00
debuginfo.ll
Debug Info: update testing cases to specify the debug info version number.
2013-11-22 21:49:45 +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
Optimize integral reciprocal (udiv 1, x and sdiv 1, x) to not use division. This fires exactly once in a clang bootstrap, but covers a few different results from http://www.cs.utah.edu/~regehr/souper/
2014-05-14 03:03:05 +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
Add the cold attribute to error-reporting call sites
2013-11-17 02:06:35 +00:00
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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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
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
fneg-ext.ll
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fold-bin-operand.ll
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fold-calls.ll
…
fold-fops-into-selects.ll
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fold-phi.ll
…
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
Rein in overzealous InstCombine of fptrunc(OP(fpextend, fpextend)).
2013-11-28 21:38:05 +00:00
fpextend.ll
Rein in overzealous InstCombine of fptrunc(OP(fpextend, fpextend)).
2013-11-28 21:38:05 +00:00
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
…
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
InstCombine: Canonicalize addrspacecast between different element types
2014-06-06 21:52:55 +00:00
hoist_instr.ll
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icmp-logical.ll
…
icmp-shr.ll
This patch implements optimization as mentioned in PR19753: Optimize comparisons with "ashr/lshr exact" of a constanst.
2014-07-22 19:19:36 +00:00
icmp.ll
Look through addrspacecasts when turning ptr comparisons into
2014-06-09 19:20:29 +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
…
LandingPadClauses.ll
…
load3.ll
…
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
Use right address space size in InstCombineCompares
2013-09-30 21:11:01 +00:00
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
…
memcmp-1.ll
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memcmp-2.ll
…
memcpy_chk-1.ll
…
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
…
memmove_chk-1.ll
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memmove_chk-2.ll
…
memmove-1.ll
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memmove-2.ll
…
memmove.ll
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memset2.ll
…
memset_chk-1.ll
…
memset_chk-2.ll
…
memset-1.ll
…
memset-2.ll
…
memset.ll
…
merge-icmp.ll
…
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
…
multi-use-or.ll
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narrow.ll
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neon-intrinsics.ll
…
no-negzero.ll
…
not-fcmp.ll
…
not.ll
…
nothrow.ll
…
nsw.ll
…
obfuscated_splat.ll
…
objsize-64.ll
…
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: Simplify (A ^ B) or/and (A ^ B ^ C)
2014-07-30 21:26:37 +00:00
or.ll
Added InstCombine Transform for patterns:
2014-07-22 18:09:41 +00:00
osx-names.ll
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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
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pr17827.ll
Conservative fix for PR17827 - don't optimize a shift + and + compare sequence where the shift is logical unless the comparison is unsigned
2013-12-02 18:43:59 +00:00
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
Scalarize select vector arguments when extracted.
2013-11-04 20:36:06 +00:00
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
TBAA: handle scalar TBAA format and struct-path aware TBAA format.
2013-09-27 18:34:27 +00:00
stpcpy_chk-1.ll
Change objectsize intrinsic to accept different address spaces.
2013-10-07 18:06:48 +00:00
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
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strcmp-2.ll
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strcpy_chk-1.ll
Change objectsize intrinsic to accept different address spaces.
2013-10-07 18:06:48 +00:00
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
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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
TBAA: handle scalar TBAA format and struct-path aware TBAA format.
2013-09-27 18:34:27 +00:00
sub-xor.ll
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sub.ll
InstCombine: Correctly propagate NSW/NUW for x-(-A) -> x+A
2014-07-31 04:49:29 +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: Simplify (A ^ B) or/and (A ^ B ^ C)
2014-07-30 21:26:37 +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.