David Majnemer 62baa594d7 ScalarEvolution: HowFarToZero was wrongly using signed division ... HowFarToZero was supposed to use unsigned division in order to calculate the backedge taken count. However, SCEVDivision::divide performs signed division. Unless I am mistaken, no users of SCEVDivision actually want signed arithmetic: switch to udiv and urem. This fixes PR21578. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222093 91177308-0d34-0410-b5e6-96231b3b80d8		2014-11-16 07:30:35 +00:00
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2007-07-15-NegativeStride.ll
2007-08-06-MisinterpretBranch.ll
2007-08-06-Unsigned.ll
2007-09-27-LargeStepping.ll
2007-11-14-SignedAddRec.ll
2007-11-18-OrInstruction.ll
2008-02-11-ReversedCondition.ll
2008-02-12-SMAXTripCount.ll
2008-02-15-UMax.ll
2008-05-25-NegativeStepToZero.ll
2008-06-12-BinomialInt64.ll
2008-07-12-UnneededSelect1.ll
2008-07-12-UnneededSelect2.ll
2008-07-19-InfiniteLoop.ll
2008-07-19-WrappingIV.ll
2008-07-29-SGTTripCount.ll
2008-07-29-SMinExpr.ll
2008-08-04-IVOverflow.ll
2008-08-04-LongAddRec.ll
2008-11-02-QuadraticCrash.ll
2008-11-15-CubicOOM.ll
2008-11-18-LessThanOrEqual.ll
2008-11-18-Stride1.ll
2008-11-18-Stride2.ll
2008-12-08-FiniteSGE.ll
2008-12-11-SMaxOverflow.ll
2008-12-14-StrideAndSigned.ll
2008-12-15-DontUseSDiv.ll
2009-01-02-SignedNegativeStride.ll
2009-04-22-TruncCast.ll
2009-05-09-PointerEdgeCount.ll
2009-07-04-GroupConstantsWidthMismatch.ll
2010-09-03-RequiredTransitive.ll
2011-03-09-ExactNoMaxBECount.ll
2011-04-26-FoldAddRec.ll
2011-10-04-ConstEvolve.ll
2012-03-26-LoadConstant.ll
2012-05-18-LoopPredRecurse.ll
2012-05-29-MulAddRec.ll
and-xor.ll
avoid-infinite-recursion-0.ll
avoid-infinite-recursion-1.ll
avoid-smax-0.ll
avoid-smax-1.ll
div-overflow.ll
do-loop.ll
fold.ll
how-far-to-zero.ll
load-with-range-metadata.ll	This patch teaches ScalarEvolution to pick and use !range metadata.	2014-10-10 21:22:34 +00:00
load.ll
max-trip-count-address-space.ll
max-trip-count.ll
nsw-offset-assume.ll
nsw-offset.ll
nsw.ll	[SCEV] Improve Scalar Evolution's use of no {un,}signed wrap flags	2014-10-31 11:40:32 +00:00
pointer-sign-bits.ll
pr3909.ll
scev-aa.ll
scev-invalid.ll
sext-inreg.ll
sext-iv-0.ll
sext-iv-1.ll	Use FileCheck in a few tests.	2014-11-06 15:05:51 +00:00
sext-iv-2.ll
sle.ll
smax.ll
SolveQuadraticEquation.ll
trip-count2.ll
trip-count3.ll
trip-count4.ll
trip-count5.ll
trip-count6.ll
trip-count7.ll
trip-count8.ll
trip-count9.ll
trip-count10.ll
trip-count11.ll
trip-count12.ll
trip-count-pow2.ll	ScalarEvolution: HowFarToZero was wrongly using signed division	2014-11-16 07:30:35 +00:00
trip-count-switch.ll
trip-count.ll
undefined.ll
unreachable-code.ll
unsimplified-loop.ll
zext-signed-addrec.ll
zext-wrap.ll