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llvm-6502/test/Transforms/InstCombine
History
Nick Lewycky 57ed0948b8 Make use of the exact bit when optimizing '(X >>exact 3) << 1' to eliminate the 
'and' that would zero out the trailing bits, and to produce an exact shift
ourselves.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147391 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-31 21:30:22 +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
Upgrade syntax of tests using volatile instructions to use 'load volatile' instead of 'volatile load', which is archaic.
2011-11-27 06:54:59 +00:00
2003-10-29-CallSiteResolve.ll
Update to new EH scheme.
2011-09-01 01:28:25 +00:00
2003-11-03-VarargsCallBug.ll
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2004-01-13-InstCombineInvokePHI.ll
Update to new EH scheme.
2011-09-01 01:28:25 +00:00
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
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2007-09-17-AliasConstFold2.ll
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2007-10-10-EliminateMemCpy.ll
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2007-10-12-Crash.ll
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2007-10-28-stacksave.ll
Upgrade syntax of tests using volatile instructions to use 'load volatile' instead of 'volatile load', which is archaic.
2011-11-27 06:54:59 +00:00
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
Split the init.trampoline intrinsic, which currently combines GCC's
2011-09-06 13:37:06 +00:00
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
Upgrade syntax of tests using volatile instructions to use 'load volatile' instead of 'volatile load', which is archaic.
2011-11-27 06:54:59 +00:00
2008-04-29-VolatileLoadDontMerge.ll
Upgrade syntax of tests using volatile instructions to use 'load volatile' instead of 'volatile load', which is archaic.
2011-11-27 06:54:59 +00:00
2008-04-29-VolatileLoadMerge.ll
Upgrade syntax of tests using volatile instructions to use 'load volatile' instead of 'volatile load', which is archaic.
2011-11-27 06:54:59 +00:00
2008-05-08-LiveStoreDelete.ll
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2008-05-08-StrLenSink.ll
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2008-05-09-SinkOfInvoke.ll
Update to new EH scheme.
2011-09-01 01:28:25 +00:00
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
Upgrade syntax of tests using volatile instructions to use 'load volatile' instead of 'volatile load', which is archaic.
2011-11-27 06:54:59 +00:00
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
Upgrade syntax of tests using volatile instructions to use 'load volatile' instead of 'volatile load', which is archaic.
2011-11-27 06:54:59 +00:00
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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2009-02-20-InstCombine-SROA.ll
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2009-02-21-LoadCST.ll
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2009-02-25-CrashZeroSizeArray.ll
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2009-03-18-vector-ashr-crash.ll
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2009-03-20-AShrOverShift.ll
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2009-03-24-InfLoop.ll
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2009-04-07-MulPromoteToI96.ll
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2009-05-23-FCmpToICmp.ll
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2009-06-11-StoreAddrSpace.ll
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2009-06-16-SRemDemandedBits.ll
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2009-07-02-MaskedIntVector.ll
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2009-12-17-CmpSelectNull.ll
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2010-01-28-NegativeSRem.ll
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2010-03-03-ExtElim.ll
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2010-11-01-lshr-mask.ll
Revert 141203. InstCombine is looping on unit tests.
2011-10-05 20:44:29 +00:00
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
Forgot to add this trampoline testcase.
2011-09-07 09:21:38 +00:00
2011-10-07-AlignPromotion.ll
Added a testcase for r141599, rdar://problem/10063881.
2011-10-11 01:32:10 +00:00
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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adjust-for-sminmax.ll
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align-2d-gep.ll
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align-addr.ll
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align-external.ll
Fix a theoretical problem (not seen in the wild): if different instances of a
2011-11-29 18:26:38 +00:00
alloca.ll
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and2.ll
Fix an infinite loop where a transform in InstCombiner::visitAnd claims a construct is changed when it is not. (See included testcase.)
2011-09-19 21:58:15 +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.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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ashr-nop.ll
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atomic.ll
An additional atomic test; related to r137662.
2011-08-16 23:29:17 +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-sext-vector.ll
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bitcast-store.ll
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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
Implement Constant::isAllOnesValue(). Fix ConstantFolding to use the new api.
2011-08-24 20:18:38 +00:00
bitcount.ll
Manually upgrade the test suite to specify the flag to cttz and ctlz.
2011-12-12 11:59:10 +00:00
bittest.ll
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bswap-fold.ll
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bswap.ll
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call2.ll
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call-cast-target.ll
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call-intrinsics.ll
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call.ll
Stop emitting instructions with the name "tmp" they eat up memory and have to be uniqued, without any benefit.
2011-09-27 20:39:19 +00:00
canonicalize_branch.ll
Add a routine to swap branch instruction operands, and update any
2011-10-17 01:11:57 +00:00
cast_ptr.ll
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cast-mul-select.ll
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cast-set.ll
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cast.ll
Fixes following the CR by Chris and Duncan:
2011-08-29 19:58:36 +00:00
compare-signs.ll
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constant-fold-compare.ll
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constant-fold-gep.ll
Make SelectionDAG::InferPtrAlignment use llvm::ComputeMaskedBits instead of duplicating the logic for globals. Make llvm::ComputeMaskedBits handle GlobalVariables slightly more aggressively, to match what InferPtrAlignment knew how to do.
2011-11-28 22:48:22 +00:00
CPP_min_max.ll
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crash.ll
Convert to the new EH model.
2011-11-08 00:23:01 +00:00
dce-iterate.ll
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deadcode.ll
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debuginfo.ll
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devirt.ll
Migrate this test from llvm/test/FrontendC++/ptr-to-method-devirt.cpp and
2011-08-16 01:17:17 +00:00
dg.exp
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div.ll
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enforce-known-alignment.ll
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exact.ll
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ExtractCast.ll
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extractvalue.ll
Upgrade syntax of tests using volatile instructions to use 'load volatile' instead of 'volatile load', which is archaic.
2011-11-27 06:54:59 +00:00
fcmp-select.ll
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fcmp-special.ll
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fcmp.ll
float comparison to double 'zero' constant can just be a float 'zero.'
2011-09-30 18:45:50 +00:00
fdiv.ll
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fold-bin-operand.ll
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fold-calls.ll
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fold-sqrt-sqrtf.ll
Add support for sqrt, sqrtl, and sqrtf in TargetLibraryInfo. Disable
2011-11-29 23:57:10 +00:00
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
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fpextend.ll
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fsub.ll
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gep-addrspace.ll
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gepgep.ll
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getelementptr.ll
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hoist_instr.ll
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icmp.ll
Improved fix for abs(val) != 0 to check other similar case. Also fixed style issues and confusing comment
2011-12-01 19:13:26 +00:00
idioms.ll
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IntPtrCast.ll
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intrinsics.ll
Add an explicit test that we now fold cttz.i32(..., true) >> 5 -> 0.
2011-12-24 22:34:15 +00:00
invariant.ll
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JavaCompare.ll
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known_align.ll
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LandingPadClauses.ll
Add support for the Objective-C personality function to the instruction
2011-10-17 21:20:24 +00:00
load3.ll
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load-cmp.ll
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load-select.ll
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load.ll
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loadstore-alignment.ll
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logical-select.ll
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lshr-phi.ll
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malloc-free-delete.ll
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memcpy-to-load.ll
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memcpy.ll
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memmove.ll
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memset2.ll
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memset_chk.ll
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memset.ll
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merge-icmp.ll
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mul-masked-bits.ll
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mul.ll
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multi-use-or.ll
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narrow.ll
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neon-intrinsics.ll
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no-negzero.ll
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not-fcmp.ll
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not.ll
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nothrow.ll
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nsw.ll
This transform is not safe. Thanks to Eli for pointing that out!
2011-08-14 04:51:49 +00:00
objsize.ll
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odr-linkage.ll
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or-fcmp.ll
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or-to-xor.ll
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or-xor.ll
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or.ll
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overflow.ll
Add a missing safety check to ProcessUGT_ADDCST_ADD. Fixes PR11438.
2011-11-28 23:32:19 +00:00
phi-merge-gep.ll
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phi.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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preserve-sminmax.ll
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ptr-int-cast.ll
Stop emitting instructions with the name "tmp" they eat up memory and have to be uniqued, without any benefit.
2011-09-27 20:39:19 +00:00
README.txt
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rem.ll
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sdiv-1.ll
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sdiv-2.ll
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sdiv-shift.ll
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select-2.ll
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select-crash.ll
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select-load-call.ll
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select.ll
Added InstCombine for "select cond, ~cond, x" type patterns
2011-12-15 00:56:45 +00:00
set.ll
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setcc-strength-reduce.ll
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sext.ll
Manually upgrade the test suite to specify the flag to cttz and ctlz.
2011-12-12 11:59:10 +00:00
shift-sra.ll
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shift.ll
Make use of the exact bit when optimizing '(X >>exact 3) << 1' to eliminate the
2011-12-31 21:30:22 +00:00
shufflemask-undef.ll
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shufflevec-constant.ll
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sign-test-and-or.ll
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signed-comparison.ll
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signext.ll
…
simplify-demanded-bits-pointer.ll
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sink_instruction.ll
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sitofp.ll
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sqrt.ll
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srem1.ll
…
srem-simplify-bug.ll
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srem.ll
…
stack-overalign.ll
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stacksaverestore.ll
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store.ll
…
strcpy_chk-64.ll
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strcpy_chk.ll
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sub-xor.ll
InstCombine: Add a combine that turns (2^n)-1 ^ x back into (2^n)-1 - x iff x is smaller than 2^n and it fuses with a following add.
2011-12-24 17:31:53 +00:00
sub.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
Make demanded-elt simplification for shufflevector slightly stronger. Spotted by inspection.
2011-09-15 01:14:29 +00:00
vec_extract_elt.ll
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vec_insertelt.ll
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vec_narrow.ll
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vec_sext.ll
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vec_shuffle.ll
Extend instcombine's shufflevector simplification to handle more cases where the input and output vectors have different sizes. Patch by Xiaoyi Guo.
2011-10-21 19:06:29 +00:00
vector_gep1.ll
Add support for vectors of pointers.
2011-12-05 06:29:09 +00:00
vector-casts.ll
Stop emitting instructions with the name "tmp" they eat up memory and have to be uniqued, without any benefit.
2011-09-27 20:39:19 +00:00
vector-srem.ll
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volatile_store.ll
Upgrade syntax of tests using volatile instructions to use 'load volatile' instead of 'volatile load', which is archaic.
2011-11-27 06:54:59 +00:00
x86-crc32-demanded.ll
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xor2.ll
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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
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zext-fold.ll
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zext-or-icmp.ll
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zext.ll
…

README.txt 

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