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ca22d427b94de946d4ef32b8acbdfb7e62e7cfa4
clang-p2996/llvm/test/Transforms/InstCombine
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David Bolvansky ca22d427b9 [SimplifyLibcalls] Replace locked IO with unlocked IO 
Summary: If file stream arg is not captured and source is fopen, we could replace IO calls by unlocked IO ("_unlocked" function variants) to gain better speed,

Reviewers: efriedma, RKSimon, spatel, sanjoy, hfinkel, majnemer, lebedev.ri, rja

Reviewed By: rja

Subscribers: rja, srhines, efriedma, lebedev.ri, llvm-commits

Differential Revision: https://reviews.llvm.org/D45736

llvm-svn: 332452
2018-05-16 11:39:52 +00:00
..
AArch64
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AMDGPU
AMDGPU: Add intrinsics llvm.amdgcn.cvt.{pknorm.i16, pknorm.u16, pk.i16, pk.u16}
2018-01-31 20:18:04 +00:00
ARM
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NVPTX
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PowerPC
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X86
[X86] Extend instcombine folds for pclmuldq intrinsics to the 256 and 512 bit version.
2018-05-13 21:56:32 +00:00
2003-05-26-CastMiscompile.ll
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2003-05-27-ConstExprCrash.ll
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2003-06-05-BranchInvertInfLoop.ll
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2003-07-21-ExternalConstant.ll
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2003-08-12-AllocaNonNull.ll
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2003-09-09-VolatileLoadElim.ll
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2003-10-29-CallSiteResolve.ll
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2003-11-03-VarargsCallBug.ll
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2004-01-13-InstCombineInvokePHI.ll
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2004-02-23-ShiftShiftOverflow.ll
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2004-03-13-InstCombineInfLoop.ll
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2004-04-04-InstCombineReplaceAllUsesWith.ll
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2004-05-07-UnsizedCastLoad.ll
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2004-07-27-ConstantExprMul.ll
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2004-08-09-RemInfLoop.ll
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2004-08-10-BoolSetCC.ll
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2004-09-20-BadLoadCombine2.ll
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2004-09-20-BadLoadCombine.ll
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2004-09-28-BadShiftAndSetCC.ll
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2004-11-22-Missed-and-fold.ll
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2004-11-27-SetCCForCastLargerAndConstant.ll
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2004-12-08-RemInfiniteLoop.ll
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2005-03-04-ShiftOverflow.ll
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2005-04-07-UDivSelectCrash.ll
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2005-06-15-DivSelectCrash.ll
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2005-06-15-ShiftSetCCCrash.ll
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2005-06-16-RangeCrash.ll
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2005-07-07-DeadPHILoop.ll
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2006-02-13-DemandedMiscompile.ll
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2006-02-28-Crash.ll
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2006-03-30-ExtractElement.ll
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2006-04-28-ShiftShiftLongLong.ll
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2006-05-04-DemandedBitCrash.ll
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2006-09-15-CastToBool.ll
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2006-10-19-SignedToUnsignedCastAndConst-2.ll
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2006-10-20-mask.ll
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2006-10-26-VectorReassoc.ll
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2006-11-10-ashr-miscompile.ll
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2006-12-01-BadFPVectorXform.ll
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2006-12-05-fp-to-int-ext.ll
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2006-12-08-Phi-ICmp-Op-Fold.ll
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2006-12-08-Select-ICmp.ll
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2006-12-15-Range-Test.ll
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2006-12-23-Select-Cmp-Cmp.ll
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2007-01-13-ExtCompareMiscompile.ll
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2007-01-18-VectorInfLoop.ll
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2007-02-01-LoadSinkAlloca.ll
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2007-02-07-PointerCast.ll
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2007-02-23-PhiFoldInfLoop.ll
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2007-03-13-CompareMerge.ll
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2007-03-19-BadTruncChangePR1261.ll
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2007-03-21-SignedRangeTest.ll
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2007-03-25-BadShiftMask.ll
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2007-03-25-DoubleShift.ll
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2007-03-26-BadShiftMask.ll
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2007-04-08-SingleEltVectorCrash.ll
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2007-05-10-icmp-or.ll
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2007-05-14-Crash.ll
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2007-05-18-CastFoldBug.ll
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2007-06-06-AshrSignBit.ll
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2007-06-21-DivCompareMiscomp.ll
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2007-08-02-InfiniteLoop.ll
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2007-09-10-AliasConstFold.ll
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2007-09-17-AliasConstFold2.ll
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2007-10-10-EliminateMemCpy.ll
Remove alignment argument from memcpy/memmove/memset in favour of alignment attributes (Step 1)
2018-01-19 17:13:12 +00:00
2007-10-12-Crash.ll
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2007-10-28-stacksave.ll
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2007-10-31-RangeCrash.ll
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2007-10-31-StringCrash.ll
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2007-11-07-OpaqueAlignCrash.ll
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2007-11-15-CompareMiscomp.ll
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2007-11-25-CompatibleAttributes.ll
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2007-12-10-ConstFoldCompare.ll
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2007-12-12-GEPScale.ll
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2007-12-16-AsmNoUnwind.ll
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2007-12-18-AddSelCmpSub.ll
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2007-12-28-IcmpSub2.ll
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2008-01-06-BitCastAttributes.ll
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2008-01-06-CastCrash.ll
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2008-01-06-VoidCast.ll
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2008-01-13-AndCmpCmp.ll
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2008-01-14-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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2008-02-13-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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2008-05-23-CompareFold.ll
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2008-05-31-AddBool.ll
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2008-05-31-Bools.ll
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2008-06-05-ashr-crash.ll
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2008-06-08-ICmpPHI.ll
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2008-06-13-InfiniteLoopStore.ll
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2008-06-13-ReadOnlyCallStore.ll
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2008-06-19-UncondLoad.ll
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2008-06-21-CompareMiscomp.ll
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2008-06-24-StackRestore.ll
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2008-07-08-ShiftOneAndOne.ll
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2008-07-08-SubAnd.ll
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2008-07-08-VolatileLoadMerge.ll
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2008-07-09-SubAndError.ll
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2008-07-10-CastSextBool.ll
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2008-07-11-RemAnd.ll
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2008-07-13-DivZero.ll
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2008-07-16-fsub.ll
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2008-08-05-And.ll
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2008-09-02-VectorCrash.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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2008-11-27-IDivVector.ll
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2008-11-27-MultiplyIntVec.ll
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2008-11-27-UDivNegative.ll
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2008-12-17-SRemNegConstVec.ll
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2009-01-05-i128-crash.ll
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2009-01-08-AlignAlloca.ll
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2009-01-16-PointerAddrSpace.ll
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2009-01-19-fmod-constant-float-specials.ll
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2009-01-19-fmod-constant-float.ll
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2009-01-24-EmptyStruct.ll
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2009-01-31-InfIterate.ll
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2009-01-31-Pressure.ll
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2009-02-04-FPBitcast.ll
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2009-02-11-NotInitialized.ll
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2009-02-20-InstCombine-SROA.ll
Remove alignment argument from memcpy/memmove/memset in favour of alignment attributes (Step 1)
2018-01-19 17:13:12 +00:00
2009-02-21-LoadCST.ll
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2009-02-25-CrashZeroSizeArray.ll
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2009-03-18-vector-ashr-crash.ll
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2009-03-24-InfLoop.ll
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2009-04-07-MulPromoteToI96.ll
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2009-05-23-FCmpToICmp.ll
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2009-06-11-StoreAddrSpace.ll
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2009-06-16-SRemDemandedBits.ll
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2009-07-02-MaskedIntVector.ll
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2009-12-17-CmpSelectNull.ll
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2010-01-28-NegativeSRem.ll
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2010-03-03-ExtElim.ll
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2010-05-30-memcpy-Struct.ll
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2010-11-01-lshr-mask.ll
Revert commit rL323951
2018-02-01 13:05:25 +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
[InstCombine] auto-generate complete test checks; NFC
2017-11-28 19:07:28 +00:00
2011-06-13-nsw-alloca.ll
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2011-09-03-Trampoline.ll
[DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label.
2018-05-09 02:40:45 +00:00
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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2012-04-24-vselect.ll
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2012-04-30-SRem.ll
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2012-05-28-select-hang.ll
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2012-06-06-LoadOfPHIs.ll
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2012-07-25-LoadPart.ll
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2012-07-30-addrsp-bitcast.ll
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2012-08-28-udiv_ashl.ll
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2012-09-17-ZeroSizedAlloca.ll
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2012-10-25-vector-of-pointers.ll
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2012-12-14-simp-vgep.ll
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2013-03-05-Combine-BitcastTy-Into-Alloca.ll
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abs_abs.ll
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abs-1.ll
[InstCombine] canonicalize shifty abs(): ashr+add+xor --> cmp+neg+sel
2017-12-16 16:41:17 +00:00
add2.ll
[InstCombine][NFC] add2.ll: add a few commutative checks.
2018-04-26 20:07:17 +00:00
add3.ll
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add4.ll
[InstCombine] Simplify Add with remainder expressions as operands.
2018-04-26 20:52:28 +00:00
add-shrink.ll
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add-sitofp.ll
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add.ll
[InstCombine] fix test to restore intent
2018-04-30 21:28:18 +00:00
addnegneg.ll
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AddOverFlow.ll
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addrspacecast.ll
Remove alignment argument from memcpy/memmove/memset in favour of alignment attributes (Step 1)
2018-01-19 17:13:12 +00:00
adjust-for-minmax.ll
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alias-recursion.ll
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align-2d-gep.ll
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align-addr.ll
Remove alignment argument from memcpy/memmove/memset in favour of alignment attributes (Step 1)
2018-01-19 17:13:12 +00:00
align-attr.ll
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align-external.ll
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all-bits-shift.ll
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alloca-cast-debuginfo.ll
[DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label.
2018-05-09 02:40:45 +00:00
alloca.ll
Remove alignment argument from memcpy/memmove/memset in favour of alignment attributes (Step 1)
2018-01-19 17:13:12 +00:00
allocsize-32.ll
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allocsize.ll
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and2.ll
[InstCombine] move related tests together; NFC
2017-09-12 15:29:28 +00:00
and-compare.ll
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and-fcmp.ll
[InstSimplify, InstCombine] add/update tests with FP +0.0 vector with undef; NFC
2018-03-25 17:48:20 +00:00
and-narrow.ll
[InstCombine] Allow common type conversions to i8/i16/i32
2018-02-03 16:51:03 +00:00
and-or-and.ll
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and-or-icmps.ll
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and-or-not.ll
[PatternMatch] Stabilize the matching order of commutative matchers
2018-04-27 21:23:20 +00:00
and-or.ll
[InstCombine] allow mask hoisting transform for vector types
2017-07-31 21:01:53 +00:00
and-xor-merge.ll
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and-xor-or.ll
[InstCombine] add shift+logic tests (PR37098); NFC
2018-04-14 13:39:02 +00:00
and.ll
[InstCombine] fix demanded-bits propagation for zext/trunc
2018-01-17 14:39:28 +00:00
apint-add.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-and.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
[InstCombine] Improve mul(x, pow2) -> shl combine for vector constants
2018-02-08 14:10:01 +00:00
apint-mul2.ll
[InstCombine] Improve mul(x, pow2) -> shl combine for vector constants
2018-02-08 14:10:01 +00:00
apint-not.ll
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apint-or.ll
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apint-rem1.ll
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apint-rem2.ll
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apint-select.ll
[InstCombine] move tests for select with bit-test of condition; NFC
2018-04-24 21:06:06 +00:00
apint-shift-simplify.ll
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apint-shift.ll
[InstSimplify] move tests for shifts; NFC
2018-04-21 16:58:00 +00:00
apint-shl-trunc.ll
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apint-sub.ll
[InstCombine] put tests of mul with neg operand(s) together; NFC
2018-02-13 23:02:12 +00:00
apint-xor1.ll
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apint-xor2.ll
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assoc-cast-assoc.ll
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assume2.ll
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assume-loop-align.ll
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assume-redundant.ll
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assume.ll
[InstCombine] weaken assertions for icmp folds (PR35846)
2018-01-09 18:56:03 +00:00
atomic.ll
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badmalloc.ll
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binop-cast.ll
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bit-checks.ll
[InstCombine][InstSimplify] Teach decomposeBitTestICmp to look through truncate instructions
2017-09-01 21:27:34 +00:00
bitcast-alias-function.ll
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bitcast-bigendian.ll
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bitcast-bitcast.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.ll
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bitcount.ll
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bitreverse-hang.ll
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bitreverse-known-bits.ll
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bittest.ll
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branch.ll
[InstCombine] Fold branches with irrelevant conditions to a constant.
2017-08-23 09:14:37 +00:00
broadcast.ll
[InstCombine] Fold insert sequence if first ins has multiple users.
2017-08-30 10:54:21 +00:00
bswap-fold.ll
Move tests associated with transforms moved in r321467
2017-12-30 03:13:00 +00:00
bswap-known-bits.ll
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bswap.ll
[InstCombine] Adjusting bswap pattern matching to hold for And/Shift mixed case
2018-05-01 12:25:46 +00:00
builtin-object-size-offset.ll
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builtin-object-size-ptr.ll
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cabs-array.ll
[SimplifyLibCalls] Inline calls to cabs when it's safe to do so
2017-12-16 01:26:25 +00:00
cabs-discrete.ll
[SimplifyLibCalls] Inline calls to cabs when it's safe to do so
2017-12-16 01:26:25 +00:00
call2.ll
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call_nonnull_arg.ll
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call-cast-attrs.ll
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call-cast-target-inalloca.ll
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call-cast-target.ll
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call-guard.ll
[InstCombine] Widen guards with conditions between
2018-05-09 22:56:32 +00:00
call-intrinsics.ll
Remove alignment argument from memcpy/memmove/memset in favour of alignment attributes (Step 1)
2018-01-19 17:13:12 +00:00
call.ll
[InstCombine] Add test to remove VarArg casts (NFC)
2018-01-03 13:35:43 +00:00
canonicalize_branch.ll
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cast_ptr.ll
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cast-call-combine-prof.ll
Fix some misc. -enable-var-scope violations
2017-11-13 01:47:52 +00:00
cast-call-combine.ll
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cast-callee-deopt-bundles.ll
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cast-int-fcmp-eq-0.ll
[InstSimplify] More fcmp cases when comparing against negative constants.
2017-12-01 12:34:16 +00:00
cast-int-icmp-eq-0.ll
[PatternMatch] allow undef elements when matching a vector zero
2018-04-22 17:07:44 +00:00
cast-mul-select.ll
[InstCombine] don't try to evaluate instructions with >1 use (revert r324014)
2018-02-05 21:50:32 +00:00
cast-set.ll
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cast-unsigned-icmp-eqcmp-0.ll
[PatternMatch] allow undef elements when matching a vector zero
2018-04-22 17:07:44 +00:00
cast.ll
[InstCombine] Fix a weakness in canEvaluateZExtd around 'and' instructions
2017-08-21 16:04:11 +00:00
ceil.ll
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clamp-to-minmax.ll
[InstCombine] Canonicalize clamp of float types to minmax in fast mode.
2017-08-04 12:22:17 +00:00
cmp-intrinsic.ll
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compare-3way.ll
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compare-alloca.ll
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compare-signs.ll
[InstCombine] add folds for xor-of-icmp signbit tests (PR36682)
2018-03-22 14:08:16 +00:00
compare-udiv.ll
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compare-unescaped.ll
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consecutive-fences.ll
Enhance synchscope representation
2017-07-11 22:23:00 +00:00
constant-expr-datalayout.ll
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constant-fold-address-space-pointer.ll
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constant-fold-alias.ll
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constant-fold-compare.ll
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constant-fold-gep.ll
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constant-fold-iteration.ll
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constant-fold-libfunc.ll
Add strictfp attribute to prevent unwanted optimizations of libm calls
2017-08-14 21:15:13 +00:00
constant-fold-math.ll
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convergent.ll
Fix some misc. -enable-var-scope violations
2017-11-13 01:47:52 +00:00
copysign.ll
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cos-1.ll
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cos-2.ll
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cos-intrinsic.ll
[PatternMatch] allow vector matches with m_FNeg
2018-02-20 23:29:05 +00:00
CPP_min_max.ll
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crash.ll
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ctpop.ll
Fix some misc. -enable-var-scope violations
2017-11-13 01:47:52 +00:00
dce-iterate.ll
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deadcode.ll
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debug-line.ll
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debuginfo_add.ll
[DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label.
2018-05-09 02:40:45 +00:00
debuginfo-dce2.ll
[DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label.
2018-05-09 02:40:45 +00:00
debuginfo-dce.ll
[DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label.
2018-05-09 02:40:45 +00:00
debuginfo-skip.ll
[DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label.
2018-05-09 02:40:45 +00:00
debuginfo-variables.ll
Remove brittle check lines from a test, NFC
2018-02-16 01:21:01 +00:00
debuginfo.ll
[DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label.
2018-05-09 02:40:45 +00:00
default-alignment.ll
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demand_shrink_nsw.ll
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demorgan.ll
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disable-simplify-libcalls.ll
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distribute.ll
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div-shift-crash.ll
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div-shift.ll
[InstCombine] (X << Y) / X -> 1 << Y
2018-01-21 16:14:51 +00:00
div.ll
[InstSimplify] move/add/regenerate checks for tests; NFC
2018-04-21 16:23:47 +00:00
double-float-shrink-1.ll
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double-float-shrink-2.ll
[InstCombine] add multi-use/vector tests for intrinsic shrinking; NFC
2018-03-24 14:45:41 +00:00
early_constfold_changes_IR.ll
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early_dce_clobbers_callgraph.ll
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element-atomic-memintrins.ll
[InstCombine] Handle atomic memset in the same way as regular memset
2018-05-11 20:04:50 +00:00
enforce-known-alignment.ll
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err-rep-cold.ll
Fix some misc. -enable-var-scope violations
2017-11-13 01:47:52 +00:00
exact.ll
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exp2-1.ll
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exp2-2.ll
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ExtractCast.ll
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extractelement.ll
[instsimplify] consistently handle undef and out of bound indices for insertelement and extractelement
2017-12-30 05:54:22 +00:00
extractinsert-tbaa.ll
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extractvalue.ll
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fabs-libcall.ll
[InstCombine] regenerate test checks; NFC
2017-11-16 16:38:42 +00:00
fabs.ll
[PatternMatch] allow undef elements when matching vector FP +0.0
2018-03-25 21:16:33 +00:00
fadd.ll
[InstCombine] simplify fneg+fadd folds; NFC
2018-04-16 14:13:57 +00:00
fast-math-scalarization.ll
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fast-math.ll
[InstCombine] simplify fneg+fadd folds; NFC
2018-04-16 14:13:57 +00:00
fcmp-select.ll
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fcmp-special.ll
[PatternMatch] allow undef elements when matching vector FP +0.0
2018-03-25 21:16:33 +00:00
fcmp.ll
[PatternMatch] define m_FNeg using m_FSub
2018-04-05 15:36:55 +00:00
fdiv-cos-sin.ll
[InstCombine] allow sin/cos transforms with 'reassoc'
2018-02-15 15:07:12 +00:00
fdiv-sin-cos.ll
[InstCombine] allow sin/cos transforms with 'reassoc'
2018-02-15 15:07:12 +00:00
fdiv.ll
[PatternMatch] define m_FNeg using m_FSub
2018-04-05 15:36:55 +00:00
ffs-1.ll
[InstCombine] narrow truncated add/sub/mul with constant
2017-08-04 22:30:34 +00:00
float-shrink-compare.ll
[InstCombine] regenerate test checks; NFC
2017-11-16 16:59:49 +00:00
fls.ll
[InstCombine] narrow truncated add/sub/mul with constant
2017-08-04 22:30:34 +00:00
fma.ll
[PatternMatch] define m_FNeg using m_FSub
2018-04-05 15:36:55 +00:00
fmul-sqrt.ll
[InstCombine] add nnan requirement for sqrt(x) * sqrt(y) -> sqrt(x*y)
2018-03-18 14:32:54 +00:00
fmul.ll
[PatternMatch] define m_FNeg using m_FSub
2018-04-05 15:36:55 +00:00
fold-bin-operand.ll
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fold-calls.ll
…
fold-fops-into-selects.ll
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fold-phi-load-metadata.ll
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fold-phi.ll
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fold-sqrt-sqrtf.ll
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fold-vector-select.ll
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fold-vector-zero.ll
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fp-ret-bitcast.ll
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fpcast.ll
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fpextend_x86.ll
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fpextend.ll
[InstCombine] Add constant vector support to getMinimumFPType for visitFPTrunc.
2018-03-05 18:04:12 +00:00
fprintf-1.ll
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fputs-1.ll
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fputs-opt-size.ll
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fsub.ll
[InstCombine] limit X - (cast(-Y) --> X + cast(Y) with hasOneUse()
2018-04-11 15:57:18 +00:00
fwrite-1.ll
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gc.relocate.ll
…
gep-addrspace.ll
[InstCombine] fix crash due to ignored addrspacecast
2018-05-14 22:05:01 +00:00
gep-combine-loop-invariant.ll
[InstCombine] Properly change GEP type when reassociating loop invariant GEP chains
2018-04-05 18:51:45 +00:00
gep-custom-dl.ll
Adding a width of the GEP index to the Data Layout.
2018-02-14 06:58:08 +00:00
gep-sext.ll
…
gep-vector.ll
[InstCombine] peek through bitcasted vector/array pointer GEP operand
2018-04-18 00:36:40 +00:00
gepgep.ll
…
gepphigep.ll
…
getelementptr-folding.ll
…
getelementptr.ll
Fix some misc. -enable-var-scope violations
2017-11-13 01:47:52 +00:00
hoist_instr.ll
…
icmp-add.ll
[InstCombine] Remove a FIXME from a test that was fixed in r314025.
2017-09-22 21:47:20 +00:00
icmp-bc-vec.ll
[InstCombine] Fold compare of int constant against a splatted vector of ints
2018-04-03 17:26:20 +00:00
icmp-custom-dl.ll
Adding a width of the GEP index to the Data Layout.
2018-02-14 06:58:08 +00:00
icmp-div-constant.ll
…
icmp-logical.ll
Simplify more cases of logical ops of masked icmps.
2018-03-13 21:13:18 +00:00
icmp-mul-zext.ll
[InstCombine] don't try to evaluate instructions with >1 use (revert r324014)
2018-02-05 21:50:32 +00:00
icmp-range.ll
…
icmp-shl-nsw.ll
…
icmp-shl-nuw.ll
…
icmp-shr-lt-gt.ll
[InstCombine] improve folds for icmp gt/lt (shr X, C1), C2
2017-10-05 21:11:49 +00:00
icmp-shr.ll
revert r314984: revert r314698 - [InstCombine] remove one-use restriction for icmp (shr exact X, C1), C2 --> icmp X, (C2<<C1)
2017-10-15 15:39:15 +00:00
icmp-vec.ll
…
icmp-xor-signbit.ll
…
icmp.ll
[InstCombine] add folds for icmp + sub (PR36969)
2018-04-02 20:37:40 +00:00
idioms.ll
…
indexed-gep-compares.ll
…
inline-intrinsic-assert.ll
…
insert-const-shuf.ll
…
insert-extract-shuffle.ll
…
insert-val-extract-elem.ll
…
int_sideeffect.ll
Add an @llvm.sideeffect intrinsic
2017-11-08 21:59:51 +00:00
intptr1.ll
Renable r314928
2017-10-10 05:07:54 +00:00
intptr2.ll
Renable r314928
2017-10-10 05:07:54 +00:00
intptr3.ll
Renable r314928
2017-10-10 05:07:54 +00:00
intptr4.ll
Renable r314928
2017-10-10 05:07:54 +00:00
intptr5.ll
Renable r314928
2017-10-10 05:07:54 +00:00
intptr6.ll
Renable r314928
2017-10-10 05:07:54 +00:00
intptr7.ll
Renable r314928
2017-10-10 05:07:54 +00:00
IntPtrCast.ll
…
intrinsics.ll
Move tests associated with transforms moved in r321467
2017-12-30 03:13:00 +00:00
invariant.ll
…
invert-variable-mask-in-masked-merge-scalar.ll
[InstCombine] Canonicalize variable mask in masked merge
2018-04-28 15:45:07 +00:00
invert-variable-mask-in-masked-merge-vector.ll
[InstCombine] Canonicalize variable mask in masked merge
2018-04-28 15:45:07 +00:00
invoke.ll
…
isascii-1.ll
…
isdigit-1.ll
…
JavaCompare.ll
…
known_align.ll
…
LandingPadClauses.ll
…
lifetime-asan.ll
Hardware-assisted AddressSanitizer (llvm part).
2017-12-09 00:21:41 +00:00
lifetime.ll
[DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label.
2018-05-09 02:40:45 +00:00
load3.ll
…
load_combine_aa.ll
…
load-bitcast32.ll
…
load-bitcast64.ll
…
load-bitcast-select.ll
[InstCombine] PR35354: Convert store(bitcast, load bitcast (select (Cond, &V1, &V2)) --> store (, load (select(Cond, load &V1, load &V2)))
2017-12-08 15:32:10 +00:00
load-cmp.ll
…
load-combine-metadata-2.ll
…
load-combine-metadata-3.ll
…
load-combine-metadata-4.ll
…
load-combine-metadata.ll
…
load-select.ll
…
load.ll
…
loadstore-alignment.ll
…
loadstore-metadata.ll
…
log-pow-nofastmath.ll
…
log-pow.ll
…
logical-select.ll
[InstCombine] add vector test with undef elts; NFC
2018-04-22 15:59:14 +00:00
lshr-phi.ll
…
lshr.ll
[InstCombine] narrow lshr with constant
2017-08-04 15:42:47 +00:00
malloc-free-delete.ll
[Analysis] Support aligned new/delete functions.
2018-04-04 19:01:51 +00:00
masked_intrinsics.ll
…
masked-merge-add.ll
[NFC][InstCombine] A few more tests for masked merge add/xor -> or with constant mask
2018-04-19 13:02:17 +00:00
masked-merge-and-of-ors.ll
[InstCombine][NFC] Add tests for one more masked merge pattern.
2018-05-07 09:42:45 +00:00
masked-merge-or.ll
[NFC][InstCombine] A few more tests for masked merge add/xor -> or with constant mask
2018-04-19 13:02:17 +00:00
masked-merge-xor.ll
[NFC][InstCombine] A few more tests for masked merge add/xor -> or with constant mask
2018-04-19 13:02:17 +00:00
max-of-nots.ll
Eliminate a bitwise 'not' op of 'not' min/max by inverting the min/max.
2018-04-11 10:29:37 +00:00
maxnum.ll
[InstCombine] add folds for minnum(-a, -b) --> -maxnum(a, b)
2018-05-10 20:03:13 +00:00
mem-gep-zidx.ll
…
mem-par-metadata-memcpy.ll
Remove alignment argument from memcpy/memmove/memset in favour of alignment attributes (Step 1)
2018-01-19 17:13:12 +00:00
memchr.ll
…
memcmp-1.ll
…
memcmp-2.ll
…
memcmp-constant-fold.ll
[LibCallSimplifier] try harder to fold memcmp with constant arguments (2nd try)
2017-08-21 19:13:14 +00:00
memcpy_chk-1.ll
Remove alignment argument from memcpy/memmove/memset in favour of alignment attributes (Step 1)
2018-01-19 17:13:12 +00:00
memcpy_chk-2.ll
…
memcpy-1.ll
Remove alignment argument from memcpy/memmove/memset in favour of alignment attributes (Step 1)
2018-01-19 17:13:12 +00:00
memcpy-2.ll
[InstCombine] regenerate test checks; NFC
2017-08-10 15:07:37 +00:00
memcpy-addrspace.ll
Remove alignment argument from memcpy/memmove/memset in favour of alignment attributes (Step 1)
2018-01-19 17:13:12 +00:00
memcpy-from-global.ll
[InstCombine] Simplify MemTransferInst's source and dest alignments separately
2018-02-12 23:06:55 +00:00
memcpy-to-load.ll
Remove alignment argument from memcpy/memmove/memset in favour of alignment attributes (Step 1)
2018-01-19 17:13:12 +00:00
memcpy.ll
Remove alignment argument from memcpy/memmove/memset in favour of alignment attributes (Step 1)
2018-01-19 17:13:12 +00:00
memmove_chk-1.ll
Remove alignment argument from memcpy/memmove/memset in favour of alignment attributes (Step 1)
2018-01-19 17:13:12 +00:00
memmove_chk-2.ll
…
memmove-1.ll
…
memmove-2.ll
…
memmove.ll
[InstCombine] Simplify MemTransferInst's source and dest alignments separately
2018-02-12 23:06:55 +00:00
memset2.ll
Remove alignment argument from memcpy/memmove/memset in favour of alignment attributes (Step 1)
2018-01-19 17:13:12 +00:00
memset_chk-1.ll
Remove alignment argument from memcpy/memmove/memset in favour of alignment attributes (Step 1)
2018-01-19 17:13:12 +00:00
memset_chk-2.ll
…
memset-1.ll
[InstCombine] add potential calloc tests and regenerate checks; NFC
2018-04-06 16:06:08 +00:00
memset-2.ll
…
memset.ll
Remove alignment argument from memcpy/memmove/memset in favour of alignment attributes (Step 1)
2018-01-19 17:13:12 +00:00
merge-icmp.ll
…
min-positive.ll
[PatternMatch] allow undef elements when matching a vector zero
2018-04-22 17:07:44 +00:00
minmax-fold.ll
[ValueTracking] remove overzealous assert
2018-01-08 18:31:13 +00:00
minmax-fp.ll
[ValueTracking] ignore FP signed-zero when detecting a casted-to-integer fmin/fmax pattern
2017-12-26 15:09:19 +00:00
minnum.ll
[InstCombine] add folds for minnum(-a, -b) --> -maxnum(a, b)
2018-05-10 20:03:13 +00:00
misc-2002.ll
…
mul-masked-bits.ll
…
mul.ll
[InstCombine] put tests of mul with neg operand(s) together; NFC
2018-02-13 23:02:12 +00:00
multi-size-address-space-pointer.ll
…
multi-use-or.ll
…
multiple-uses-load-bitcast-select.ll
[InstCombine] Fix PR35618: Instcombine hangs on single minmax load bitcast.
2017-12-12 20:28:46 +00:00
musttail-thunk.ll
[InstCombine] Don't strip function type casts from musttail calls
2018-04-02 22:49:44 +00:00
narrow-switch.ll
…
narrow.ll
…
no_cgscc_assert.ll
…
no-negzero.ll
…
non-integral-pointers.ll
Fix invalid ptrtoint in InstCombine
2017-10-22 20:28:17 +00:00
nonnull-attribute.ll
…
not.ll
…
nothrow.ll
…
nsw.ll
…
obfuscated_splat.ll
…
objsize-64.ll
…
objsize-address-space.ll
…
objsize-noverify.ll
…
objsize.ll
Remove alignment argument from memcpy/memmove/memset in favour of alignment attributes (Step 1)
2018-01-19 17:13:12 +00:00
odr-linkage.ll
…
onehot_merge.ll
…
opaque.ll
Remove alignment argument from memcpy/memmove/memset in favour of alignment attributes (Step 1)
2018-01-19 17:13:12 +00:00
or-fcmp.ll
[InstSimplify, InstCombine] add/update tests with FP +0.0 vector with undef; NFC
2018-03-25 17:48:20 +00:00
or-shifted-masks.ll
Inserting several lit tests to reflect current behaviour
2017-12-14 12:00:04 +00:00
or-xor.ll
[PatternMatch] Stabilize the matching order of commutative matchers
2018-04-27 21:23:20 +00:00
or.ll
[NFC][InstCombine] Regenerate two tests that are affected by folding masked merge
2018-04-20 10:49:19 +00:00
osx-names.ll
…
out-of-bounds-indexes.ll
Reintroduce r320049, r320014 and r319894.
2017-12-13 11:21:18 +00:00
overflow-mul.ll
…
overflow.ll
…
OverlappingInsertvalues.ll
…
phi-load-metadata-2.ll
…
phi-load-metadata-3.ll
…
phi-load-metadata.ll
…
phi-merge-gep.ll
…
phi-preserve-ir-flags.ll
…
phi-select-constant.ll
Fix some misc. -enable-var-scope violations
2017-11-13 01:47:52 +00:00
phi-timeout.ll
Remove unneeded -debug argument from new test
2018-02-03 17:33:50 +00:00
phi.ll
…
pow-1.ll
[SimplifyLibCalls] propagate FMF when folding pow(x, -1.0) call
2017-12-10 17:25:54 +00:00
pow-2.ll
…
pow-3.ll
…
pow-4.ll
[InstCombine] auto-generate full checks; NFC
2018-03-01 15:13:42 +00:00
pow-exp-nofastmath.ll
…
pow-exp.ll
…
pow-sqrt.ll
[LibCallSimplifier] allow splat vectors for pow(x, 0.5) -> sqrt() transforms
2017-11-19 16:42:27 +00:00
pr2645-0.ll
…
pr2996.ll
…
pr12251.ll
…
pr12338.ll
…
pr17827.ll
[InstCombine] Teach the code that pulls logical operators through constant shifts to handle vector splats too.
2017-08-05 20:00:42 +00:00
pr19420.ll
…
pr20079.ll
…
pr20678.ll
…
pr21199.ll
…
pr21210.ll
…
pr21651.ll
…
pr21891.ll
…
pr23751.ll
…
pr23809.ll
…
pr24354.ll
…
pr24605.ll
…
pr25342.ll
…
pr25745.ll
…
pr26992.ll
…
pr26993.ll
…
pr27236.ll
[InstCombine] Canonicalize clamp of float types to minmax in fast mode.
2017-08-04 12:22:17 +00:00
pr27332.ll
…
pr27703.ll
…
pr27996.ll
…
pr28143.ll
…
pr28725.ll
Reintroduce r320049, r320014 and r319894.
2017-12-13 11:21:18 +00:00
pr30929.ll
…
pr31990_wrong_memcpy.ll
Remove alignment argument from memcpy/memmove/memset in favour of alignment attributes (Step 1)
2018-01-19 17:13:12 +00:00
pr32686.ll
…
pr33453.ll
…
pr33689_same_bitwidth.ll
Add original reproducer for r307754 / PR33689
2017-07-13 07:38:53 +00:00
pr34349.ll
[InstCombine] Call hasNoSignedWrap instead of hasNoUnsignedWrap to get the NSW flag when handling Add in SimplifyDemandedUseBits.
2017-08-28 18:44:28 +00:00
pr34627.ll
[ConstantFold] Return the correct type when folding a GEP with vector indices.
2017-09-15 20:53:05 +00:00
pr35515.ll
[InstCombine] Fix SimplifyDemandedUseBits SHL handling (PR35515)
2017-12-09 23:42:56 +00:00
pr36362.ll
[InstCombine] Don't fold select(C, Z, binop(select(C, X, Y), W)) -> select(C, Z, binop(Y, W)) if the binop is rem or div.
2018-02-14 18:08:33 +00:00
PR30597.ll
…
prefetch-load.ll
…
preserve-sminmax.ll
…
preserved-analyses.ll
…
prevent-cmp-merge.ll
…
printf-1.ll
Fix some misc. -enable-var-scope violations
2017-11-13 01:47:52 +00:00
printf-2.ll
…
printf-3.ll
…
ptr-int-cast.ll
…
puts-1.ll
…
range-check.ll
…
README.txt
…
readnone-maythrow.ll
…
realloc.ll
[SimplifyLibcalls] Realloc(null, N) -> Malloc(N)
2018-04-18 14:21:31 +00:00
rem.ll
[InstCombine] refine select-of-constants to bitwise ops
2018-05-03 21:58:44 +00:00
rotate.ll
[InstCombine] Add tests for cases where we don't recognize type promoted rotate idioms.
2018-05-11 00:46:09 +00:00
round.ll
…
sdiv-1.ll
…
sdiv-2.ll
…
select_arithmetic.ll
[InstCombine] auto-generate complete checks; NFC
2018-02-28 16:53:45 +00:00
select_meta.ll
Fix some misc. -enable-var-scope violations
2017-11-13 01:47:52 +00:00
select-2.ll
…
select-bitext-bitwise-ops.ll
Inserting several lit tests to reflect current behaviour
2017-12-14 12:00:04 +00:00
select-bitext.ll
Revert commit rL323951
2018-02-01 13:05:25 +00:00
select-cmp-br.ll
[InstCombine] Fold branches with irrelevant conditions to a constant.
2017-08-23 09:14:37 +00:00
select-cmp-cttz-ctlz.ll
…
select-cmpxchg.ll
[InstCombine] Simplify selects that test cmpxchg instructions
2017-10-31 12:34:02 +00:00
select-crash-noverify.ll
…
select-crash.ll
[InstCombine, NewGVN] remove FP undef from tests
2018-03-08 14:57:08 +00:00
select-extractelement.ll
[InstCombine] remove extract-of-select vector transform (2nd try)
2017-09-25 20:30:53 +00:00
select-gep.ll
[InstCombine] Make foldSelectOpOp able to handle two-operand getelementptr
2018-01-19 10:05:15 +00:00
select-icmp-and.ll
[InstCombine] refine select-of-constants to bitwise ops
2018-05-03 21:58:44 +00:00
select-implied.ll
[ValueTracking] Fix the identity case (LHS => RHS) when the LHS is false.
2017-07-07 13:55:55 +00:00
select-load-call.ll
…
select-obo-peo-ops.ll
[InstCombine] new testcases for OverflowingBinaryOperators and PossiblyExactOperators transformations; NFC
2018-05-01 14:27:10 +00:00
select-of-bittest.ll
[PatternMatch] allow undef elements when matching a vector zero
2018-04-22 17:07:44 +00:00
select-select.ll
…
select-with-bitwise-ops.ll
[InstCombine] move tests for select with bit-test of condition; NFC
2018-04-24 21:06:06 +00:00
select.ll
[InstCombine] move tests for select with bit-test of condition; NFC
2018-04-24 21:06:06 +00:00
set.ll
[InstCombine] Support vector splats in transformZExtICmp
2017-08-29 18:58:13 +00:00
setcc-strength-reduce.ll
…
sext.ll
…
shift-add.ll
…
shift-shift.ll
…
shift-sra.ll
[InstCombine] sink sext after ashr
2017-08-15 18:25:52 +00:00
shift.ll
[InstSimplify] move tests for shifts; NFC
2018-04-21 16:58:00 +00:00
should-change-type.ll
[InstCombine] Allow common type conversions to i8/i16/i32
2018-02-03 16:51:03 +00:00
shufflevec-bitcast.ll
…
shufflevec-constant.ll
…
sign-test-and-or.ll
…
signed-comparison.ll
…
signext.ll
[InstCombine] fix datalayout in test file
2018-01-24 21:36:45 +00:00
simplify-demanded-bits-pointer.ll
…
simplify-libcalls.ll
Remove alignment argument from memcpy/memmove/memset in favour of alignment attributes (Step 1)
2018-01-19 17:13:12 +00:00
sincospi.ll
…
sink_instruction.ll
…
sink-into-catchswitch.ll
…
sink-zext.ll
…
sitofp.ll
…
smax-icmp.ll
…
smin-icmp.ll
…
snprintf.ll
[InstCombine] snprintf optimizations
2018-05-11 17:50:49 +00:00
sprintf-1.ll
Remove alignment argument from memcpy/memmove/memset in favour of alignment attributes (Step 1)
2018-01-19 17:13:12 +00:00
sprintf-void.ll
[Analysis] Validate the return type of s(n)printf like libcalls
2018-05-11 16:53:56 +00:00
sqrt-nofast.ll
…
sqrt.ll
…
srem1.ll
…
srem-simplify-bug.ll
…
stack-overalign.ll
Remove alignment argument from memcpy/memmove/memset in favour of alignment attributes (Step 1)
2018-01-19 17:13:12 +00:00
stacksaverestore.ll
…
statepoint.ll
…
store-load-unaliased-gep.ll
[PM][InstCombine] fixing omission of AliasAnalysis in new-pass-manager's version of InstCombine
2017-12-14 10:36:31 +00:00
store.ll
[InstComineLoadStoreAlloca] Optimize stores to GEP off null base
2017-12-12 14:12:33 +00:00
stpcpy_chk-1.ll
Remove alignment argument from memcpy/memmove/memset in favour of alignment attributes (Step 1)
2018-01-19 17:13:12 +00:00
stpcpy_chk-2.ll
…
stpcpy-1.ll
…
stpcpy-2.ll
…
str-int-2.ll
[SimplifyLibcalls] Atoi, strtol replacements
2018-04-25 18:58:53 +00:00
str-int.ll
[SimplifyLibcalls] Atoi, strtol replacements
2018-04-25 18:58:53 +00:00
strcat-1.ll
…
strcat-2.ll
…
strcat-3.ll
…
strchr-1.ll
…
strchr-2.ll
…
strcmp-1.ll
…
strcmp-2.ll
…
strcpy_chk-1.ll
Remove alignment argument from memcpy/memmove/memset in favour of alignment attributes (Step 1)
2018-01-19 17:13:12 +00:00
strcpy_chk-2.ll
…
strcpy_chk-64.ll
Merge isKnownNonNull into isKnownNonZero
2017-09-09 18:23:11 +00:00
strcpy-1.ll
…
strcpy-2.ll
…
strcspn-1.ll
…
strcspn-2.ll
…
strlen-1.ll
Merge isKnownNonNull into isKnownNonZero
2017-09-09 18:23:11 +00:00
strlen-2.ll
…
strncat-1.ll
…
strncat-2.ll
…
strncat-3.ll
…
strncmp-1.ll
…
strncmp-2.ll
…
strncmp-wrong-datalayout.ll
[TargetLibraryInfo] Discard library functions with incorrectly sized integers
2017-12-18 10:31:58 +00:00
strncpy_chk-1.ll
Remove alignment argument from memcpy/memmove/memset in favour of alignment attributes (Step 1)
2018-01-19 17:13:12 +00:00
strncpy_chk-2.ll
…
strncpy-1.ll
…
strncpy-2.ll
…
strpbrk-1.ll
…
strpbrk-2.ll
…
strrchr-1.ll
…
strrchr-2.ll
…
strspn-1.ll
…
strstr-1.ll
…
strstr-2.ll
…
strto-1.ll
…
struct-assign-tbaa-new.ll
[Transforms] Propagate new-format TBAA tags on simplification of memory-transfer intrinsics
2018-02-19 12:10:20 +00:00
struct-assign-tbaa.ll
Remove alignment argument from memcpy/memmove/memset in favour of alignment attributes (Step 1)
2018-01-19 17:13:12 +00:00
sub-xor.ll
…
sub.ll
[PatternMatch] define m_Not using m_Xor and cst_pred_ty
2018-03-06 18:19:42 +00:00
switch-constant-expr.ll
…
switch-truncate-crash.ll
…
tan-nofastmath.ll
…
tan.ll
…
tbaa-store-to-load.ll
…
toascii-1.ll
…
token.ll
…
trunc-binop-ext.ll
[InstCombine] include 'sub' in the list of narrow-able binops
2017-11-16 14:40:51 +00:00
trunc.ll
[InstCombine] Consider more cases where SimplifyDemandedUseBits does not convert AShr to LShr.
2017-08-25 11:07:54 +00:00
type_pun.ll
…
udiv_select_to_select_shift.ll
[InstCombine] Add constant vector support for X udiv C, where C >= signbit
2018-02-09 10:43:59 +00:00
udiv-simplify.ll
[InstCombine] Teach SimplifyDemandedBits that udiv doesn't demand low dividend bits that are zero in the divisor
2018-05-09 22:27:34 +00:00
udivrem-change-width.ll
[InstCombine] fix and enhance udiv/urem narrowing
2017-08-24 22:54:01 +00:00
umax-icmp.ll
…
umin-icmp.ll
…
unfold-masked-merge-with-const-mask-scalar.ll
[InstCombine] Unfold masked merge with constant mask
2018-04-30 17:59:33 +00:00
unfold-masked-merge-with-const-mask-vector.ll
[InstCombine] Unfold masked merge with constant mask
2018-04-30 17:59:33 +00:00
unlocked-stdio.ll
[SimplifyLibcalls] Replace locked IO with unlocked IO
2018-05-16 11:39:52 +00:00
unordered-fcmp-select.ll
…
unpack-fca.ll
…
unrecognized_three-way-comparison.ll
[InstCombine] refine select-of-constants to bitwise ops
2018-05-03 21:58:44 +00:00
unsigned_saturated_sub.ll
[InstCombine] add unsigned saturation subtraction canonicalizations
2018-02-05 17:53:29 +00:00
urem-simplify-bug.ll
…
vararg.ll
…
vec_demanded_elts.ll
[InstCombine] remove stale comments for tests; NFC
2018-03-01 16:28:32 +00:00
vec_extract_2elts.ll
…
vec_extract_elt.ll
…
vec_extract_var_elt.ll
…
vec_insertelt.ll
…
vec_narrow.ll
…
vec_phi_extract.ll
[InstCombine] Support ~(c-X) --> X+(-c-1) and ~(X-c) --> (-c-1)-X for splat vectors.
2017-08-06 06:28:41 +00:00
vec_sext.ll
[NFC][InstCombine] Regenerate two tests that are affected by folding masked merge
2018-04-20 10:49:19 +00:00
vec_shuffle.ll
[InstCombine] fix binop (shuffle X), C --> shuffle (binop X, C') to check uses
2018-05-15 22:00:37 +00:00
vector_gep1.ll
[InstCombine] auto-generate checks; NFC
2018-03-23 15:39:03 +00:00
vector_gep2.ll
[InstCombine] auto-generate checks; NFC
2018-03-23 15:39:03 +00:00
vector_insertelt_shuffle.ll
[instsimplify] consistently handle undef and out of bound indices for insertelement and extractelement
2017-12-30 05:54:22 +00:00
vector-casts.ll
[InstCombine] Remove check for sext of vector icmp from shouldOptimizeCast
2017-08-22 23:40:15 +00:00
vector-mul.ll
[InstCombine] Regenerate vector mul tests.
2018-02-08 17:54:24 +00:00
vector-type.ll
…
vector-udiv.ll
[InstCombine] Add constant vector support for X udiv C, where C >= signbit
2018-02-09 10:43:59 +00:00
vector-urem.ll
[PatternMatch] enhance m_One() to ignore undef elements in vectors
2018-02-17 16:00:42 +00:00
vector-xor.ll
[PatternMatch] define m_Not using m_Xor and cst_pred_ty
2018-03-06 18:19:42 +00:00
volatile_store.ll
…
wcslen-1.ll
TargetLibraryInfo: Stop guessing wchar_t size
2017-09-26 02:36:57 +00:00
wcslen-2.ll
TargetLibraryInfo: Stop guessing wchar_t size
2017-09-26 02:36:57 +00:00
wcslen-3.ll
Merge isKnownNonNull into isKnownNonZero
2017-09-09 18:23:11 +00:00
wcslen-4.ll
TargetLibraryInfo: Stop guessing wchar_t size
2017-09-26 02:36:57 +00:00
weak-symbols.ll
…
win-math.ll
…
xor2.ll
…
xor-icmps.ll
[InstCombine] add folds for xor-of-icmp signbit tests (PR36682)
2018-03-22 14:08:16 +00:00
xor-undef.ll
…
xor.ll
Eliminate a bitwise 'not' op of 'not' min/max by inverting the min/max.
2018-04-11 10:29:37 +00:00
zero-point-zero-add.ll
…
zeroext-and-reduce.ll
…
zext-bool-add-sub.ll
[InstCombine] canonicalize constant-minus-boolean to select-of-constants
2017-12-06 21:22:57 +00:00
zext-fold.ll
…
zext-or-icmp.ll
…
zext-phi.ll
…
zext.ll
…

README.txt 

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