Nick Lewycky baf1d18cf0 Teach SCEV to handle more cases of 'and X, CST', specifically where CST is any number of contiguous 1 bits in a row, with any number of leading and trailing 0 bits. ... Unfortunately, this in turn led to some lower quality SCEVs due to some different paths through expression simplification, so add getUDivExactExpr and use it. This fixes all instances of the problems that I found, but we can make that function smarter as necessary. Merge test "xor-and.ll" into "and-xor.ll" since I needed to update it anyways. Test 'nsw-offset.ll' analyzes a little deeper, %n now gets a scev in terms of %no instead of a SCEVUnknown. llvm-svn: 200203		2014-01-27 10:04:03 +00:00
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2007-07-15-NegativeStride.ll	FileCheckize some of the testcases.	2013-08-05 23:43:18 +00:00
2007-08-06-MisinterpretBranch.ll	FileCheck-ize tests.	2013-08-22 00:51:19 +00:00
2007-08-06-Unsigned.ll	FileCheck-ize tests.	2013-08-22 00:51:19 +00:00
2007-09-27-LargeStepping.ll	FileCheck-ize tests.	2013-08-22 00:51:19 +00:00
2007-11-14-SignedAddRec.ll	FileCheck-ize tests.	2013-08-22 00:51:19 +00:00
2007-11-18-OrInstruction.ll
2008-02-11-ReversedCondition.ll	FileCheck-ize tests.	2013-08-22 00:51:19 +00:00
2008-02-12-SMAXTripCount.ll
2008-02-15-UMax.ll	FileCheck-ize tests.	2013-08-22 00:51:19 +00:00
2008-05-25-NegativeStepToZero.ll	FileCheck-ize tests.	2013-08-22 00:51:19 +00:00
2008-06-12-BinomialInt64.ll
2008-07-12-UnneededSelect1.ll	FileCheck-ize tests.	2013-08-22 00:51:19 +00:00
2008-07-12-UnneededSelect2.ll	FileCheck-ize tests.	2013-08-22 00:51:19 +00:00
2008-07-19-InfiniteLoop.ll	FileCheck-ize tests.	2013-08-22 00:51:19 +00:00
2008-07-19-WrappingIV.ll	FileCheck-ize tests.	2013-08-22 00:51:19 +00:00
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	FileCheck-ize tests.	2013-08-22 00:51:19 +00:00
2008-11-18-Stride1.ll	Rewrite SCEV's backedge taken count computation.	2013-11-06 02:08:26 +00:00
2008-11-18-Stride2.ll	Rewrite SCEV's backedge taken count computation.	2013-11-06 02:08:26 +00:00
2008-12-08-FiniteSGE.ll	FileCheck-ize tests.	2013-08-22 00:51:19 +00:00
2008-12-11-SMaxOverflow.ll
2008-12-14-StrideAndSigned.ll	FileCheck-ize tests.	2013-08-22 00:51:19 +00:00
2008-12-15-DontUseSDiv.ll	Rewrite SCEV's backedge taken count computation.	2013-11-06 02:08:26 +00:00
2009-01-02-SignedNegativeStride.ll	FileCheck-ize tests.	2013-08-22 00:51:19 +00:00
2009-04-22-TruncCast.ll	FileCheck-ize tests.	2013-08-22 00:51:19 +00:00
2009-05-09-PointerEdgeCount.ll	FileCheck-ize tests.	2013-08-22 00:51:19 +00:00
2009-07-04-GroupConstantsWidthMismatch.ll
2010-09-03-RequiredTransitive.ll
2011-03-09-ExactNoMaxBECount.ll	Tests: rewrite 'opt ... %s' to 'opt ... < %s' so that opt does not emit a ModuleID	2012-12-30 02:33:22 +00:00
2011-04-26-FoldAddRec.ll	Add newlines at end of test files, no functionality change	2013-07-13 22:00:58 +00:00
2011-10-04-ConstEvolve.ll
2012-03-26-LoadConstant.ll	TBAA: remove !tbaa from testing cases if not used.	2013-04-29 22:42:01 +00:00
2012-05-18-LoopPredRecurse.ll	Fix known typos	2014-01-24 17:20:08 +00:00
2012-05-29-MulAddRec.ll
and-xor.ll	Teach SCEV to handle more cases of 'and X, CST', specifically where CST is any number of contiguous 1 bits in a row, with any number of leading and trailing 0 bits.	2014-01-27 10:04:03 +00:00
avoid-infinite-recursion-0.ll
avoid-infinite-recursion-1.ll
avoid-smax-0.ll	FileCheck-ize tests.	2013-08-22 00:51:19 +00:00
avoid-smax-1.ll
div-overflow.ll	FileCheck-ize tests.	2013-08-22 00:51:19 +00:00
do-loop.ll	FileCheck-ize tests.	2013-08-22 00:51:19 +00:00
fold.ll	Teach SCEV to handle more cases of 'and X, CST', specifically where CST is any number of contiguous 1 bits in a row, with any number of leading and trailing 0 bits.	2014-01-27 10:04:03 +00:00
how-far-to-zero.ll
load.ll
max-trip-count-address-space.ll	Teach ScalarEvolution about pointer address spaces	2013-09-10 19:55:24 +00:00
max-trip-count.ll
nsw-offset.ll	Teach SCEV to handle more cases of 'and X, CST', specifically where CST is any number of contiguous 1 bits in a row, with any number of leading and trailing 0 bits.	2014-01-27 10:04:03 +00:00
nsw.ll	SCEV: Make the final add of an inbounds GEP nuw if we know that the index is positive.	2013-10-28 07:30:06 +00:00
pointer-sign-bits.ll
pr3909.ll
scev-aa.ll
scev-invalid.ll	Fix SCEV forgetMemoizedResults should search and destroy backedge exprs.	2013-03-26 03:14:53 +00:00
sext-inreg.ll
sext-iv-0.ll
sext-iv-1.ll
sext-iv-2.ll
sle.ll
smax.ll	FileCheckize some of the testcases.	2013-08-05 23:43:18 +00:00
SolveQuadraticEquation.ll	FileCheckize some of the testcases.	2013-08-05 23:43:18 +00:00
trip-count2.ll	FileCheckize some of the testcases.	2013-08-05 23:43:18 +00:00
trip-count3.ll	Rewrite SCEV's backedge taken count computation.	2013-11-06 02:08:26 +00:00
trip-count4.ll	FileCheckize some of the testcases.	2013-08-05 23:43:18 +00:00
trip-count5.ll
trip-count6.ll	FileCheckize some of the testcases.	2013-08-05 23:43:18 +00:00
trip-count7.ll	FileCheckize some of the testcases.	2013-08-05 23:43:18 +00:00
trip-count8.ll	FileCheckize some of the testcases.	2013-08-05 23:43:18 +00:00
trip-count9.ll	Rewrite SCEV's backedge taken count computation.	2013-11-06 02:08:26 +00:00
trip-count10.ll	Unit test for SCEV fix r182989, PR16130.	2013-05-31 16:42:41 +00:00
trip-count11.ll	Fix creating bitcasts between address spaces in SCEV.	2013-10-21 18:41:10 +00:00
trip-count12.ll
trip-count.ll	FileCheckize some of the testcases.	2013-08-05 23:43:18 +00:00
undefined.ll
unreachable-code.ll
unsimplified-loop.ll
zext-signed-addrec.ll	Fixed old typo in ScalarEvolution, that caused wrong SCEVs zext operation.	2014-01-09 12:26:12 +00:00
zext-wrap.ll	FileCheckize some of the testcases.	2013-08-05 23:43:18 +00:00