Max Kazantsev 8d0322e612 [SCEV] Use depth limit instead of local cache for SExt and ZExt ... In rL300494 there was an attempt to deal with excessive compile time on invocations of getSign/ZeroExtExpr using local caching. This approach only helps if we request the same SCEV multiple times throughout recursion. But in the bug PR33431 we see a case where we request different values all the time, so caching does not help and the size of the cache grows enormously. In this patch we remove the local cache for this methods and add the recursion depth limit instead, as we do for arithmetics. This gives us a guarantee that the invocation sequence is limited and reasonably short. Differential Revision: https://reviews.llvm.org/D34273 llvm-svn: 306785		2017-06-30 05:04:09 +00:00
..
2007-07-15-NegativeStride.ll	[opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction	2015-02-27 19:29:02 +00:00
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	[opaque pointer type] Add textual IR support for explicit type parameter to load instruction	2015-02-27 21:17:42 +00:00
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	[opaque pointer type] Add textual IR support for explicit type parameter to the call instruction	2015-04-16 23:24:18 +00:00
2008-11-18-Stride1.ll	…
2008-11-18-Stride2.ll	…
2008-12-08-FiniteSGE.ll	[opaque pointer type] Add textual IR support for explicit type parameter to load instruction	2015-02-27 21:17:42 +00:00
2008-12-11-SMaxOverflow.ll	…
2008-12-14-StrideAndSigned.ll	…
2008-12-15-DontUseSDiv.ll	…
2009-01-02-SignedNegativeStride.ll	[opaque pointer type] Add textual IR support for explicit type parameter to load instruction	2015-02-27 21:17:42 +00:00
2009-04-22-TruncCast.ll	…
2009-05-09-PointerEdgeCount.ll	[opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction	2015-02-27 19:29:02 +00:00
2009-07-04-GroupConstantsWidthMismatch.ll	[opaque pointer type] Add textual IR support for explicit type parameter to load instruction	2015-02-27 21:17:42 +00:00
2010-09-03-RequiredTransitive.ll	…
2011-03-09-ExactNoMaxBECount.ll	…
2011-04-26-FoldAddRec.ll	[PM] Clean up the testing for IVUsers, especially with the new PM.	2017-01-15 09:29:27 +00:00
2011-10-04-ConstEvolve.ll	…
2012-03-26-LoadConstant.ll	[opaque pointer type] Add textual IR support for explicit type parameter to the call instruction	2015-04-16 23:24:18 +00:00
2012-05-18-LoopPredRecurse.ll	[PM] Clean up the testing for IVUsers, especially with the new PM.	2017-01-15 09:29:27 +00:00
2012-05-29-MulAddRec.ll	…
SolveQuadraticEquation.ll	[opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction	2015-02-27 19:29:02 +00:00
ZeroStep.ll	[SCEV] createAddRecFromPHI: Optimize for the most common case.	2017-05-03 23:53:38 +00:00
and-xor.ll	…
avoid-assume-hang.ll	ScalarEvolution assume hanging bugfix	2015-09-09 20:47:30 +00:00
avoid-infinite-recursion-0.ll	[opaque pointer type] Add textual IR support for explicit type parameter to load instruction	2015-02-27 21:17:42 +00:00
avoid-infinite-recursion-1.ll	[PM] Clean up the testing for IVUsers, especially with the new PM.	2017-01-15 09:29:27 +00:00
avoid-smax-0.ll	[opaque pointer type] Add textual IR support for explicit type parameter to load instruction	2015-02-27 21:17:42 +00:00
avoid-smax-1.ll	Revert "Change memcpy/memset/memmove to have dest and source alignments."	2015-11-19 05:56:52 +00:00
constant_condition.ll	Revert "Revert "This patch builds on top of D13378 to handle constant condition.""	2015-10-07 18:14:25 +00:00
different-loops-recs.ll	Re-enable "[SCEV] Do not fold dominated SCEVUnknown into AddRecExpr start"	2017-05-26 06:47:04 +00:00
div-overflow.ll	…
do-loop.ll	…
exhaustive-trip-counts.ll	[SCEV] Compute max be count from shift operator only if all else fails	2016-06-30 02:47:28 +00:00
expander-replace-congruent-ivs.ll	[SCEVExpander] Fix a failed cast<> assertion	2016-05-11 17:41:41 +00:00
exponential-behavior.ll	[SCEV] Fix exponential time complexity by caching	2017-04-24 00:09:46 +00:00
ext-antecedent.ll	[SCEV] Revert bailout added in r75511.	2015-03-26 17:28:26 +00:00
flags-from-poison-dbg.ll	Teach isGuarantdToTransferExecToSuccessor about debug info intrinsics	2016-06-08 17:48:36 +00:00
flags-from-poison.ll	Rename isKnownNotFullPoison to programUndefinedIfPoison; NFC	2017-04-30 19:41:19 +00:00
fold.ll	When simplifying a SCEV truncate by distributing, consider it a simplification to replace a cast, even if we end up with a trunc around the term. Fixes PR22960!	2015-03-20 02:25:00 +00:00
guards.ll	[SCEV] Use guards to prove predicates	2016-05-10 00:31:49 +00:00
how-far-to-zero.ll	…
implied-via-addition.ll	[ScalarEvolution] Re-enable Predicate implication from operations	2017-03-31 12:05:30 +00:00
implied-via-division.ll	[ScalarEvolution] Re-enable Predicate implication from operations	2017-03-31 12:05:30 +00:00
incorrect-nsw.ll	…
increasing-or-decreasing-iv.ll	Remove trailing newline from test case; NFC	2016-03-09 01:51:44 +00:00
infer-prestart-no-wrap.ll	[SCEV] Don't always add no-wrap flags to post-inc add recs	2016-05-29 00:32:17 +00:00
infer-via-ranges.ll	[SCEV] Make isImpliedCond smarter.	2015-03-18 00:41:29 +00:00
invalidation.ll	[PM] The assumption cache is fundamentally designed to be self-updating,	2017-01-15 00:26:18 +00:00
latch-dominating-conditions.ll	[SCEV] Look at backedge dominating conditions (re-land r233447).	2015-04-01 18:24:06 +00:00
limit-depth.ll	[SCEV] Use depth limit instead of local cache for SExt and ZExt	2017-06-30 05:04:09 +00:00
load-with-range-metadata.ll	[opaque pointer type] Add textual IR support for explicit type parameter to load instruction	2015-02-27 21:17:42 +00:00
load.ll	[SCEV] Add a `scalar-evolution-print-constant-ranges' option	2015-03-09 21:43:39 +00:00
max-addops-inline.ll	[SCEV] Introduce add operation inlining limit	2017-01-26 13:33:17 +00:00
max-mulops-inline.ll	[SCEV] Add a threshold to restrict number of mul operands to be inlined into SCEV	2016-10-20 21:38:39 +00:00
max-trip-count-address-space.ll	[SCEV] Add a `scalar-evolution-print-constant-ranges' option	2015-03-09 21:43:39 +00:00
max-trip-count.ll	[SCEV] Make howFarToZero max backedge-taken count check for precondition.	2017-01-11 21:07:15 +00:00
min-max-exprs.ll	[SCEV] Mark AddExprs as nsw or nuw if legal	2015-10-22 19:57:19 +00:00
no-wrap-add-exprs.ll	[SCEV] Commute zero extends through <nuw> additions	2015-10-22 19:57:38 +00:00
no-wrap-unknown-becount.ll	Revert @llvm.assume with operator bundles (r289755-r289757)	2016-12-19 08:22:17 +00:00
non-IV-phi.ll	[SCEV] Generalize the SCEV algorithm for creating expressions for PHI nodes	2015-10-30 15:02:28 +00:00
nowrap-preinc-limits.ll	[SCEV] Don't always add no-wrap flags to post-inc add recs	2016-05-29 00:32:17 +00:00
nsw-offset-assume.ll	Revert @llvm.assume with operator bundles (r289755-r289757)	2016-12-19 08:22:17 +00:00
nsw-offset.ll	[SCEV] No-wrap flags are not propagated when folding "{S,+,X}+T ==> {S+T,+,X}"	2016-05-25 13:01:33 +00:00
nsw.ll	[SCEV] Clarify behavior around max backedge taken count	2017-05-22 06:46:04 +00:00
nw-sub-is-not-nw-add.ll	…
overflow-intrinsics.ll	[SCEV] See through op.with.overflow intrinsics (re-apply)	2016-05-29 00:34:42 +00:00
pointer-sign-bits.ll	…
pr3909.ll	…
pr18606-min-zeros.ll	[SCEV] Cache results during GetMinTrailingZeros query	2017-02-14 15:53:12 +00:00
pr18606.ll	[SCEV] Memoize visitMulExpr results in SCEVRewriteVisitor.	2016-10-21 20:05:21 +00:00
pr22179.ll	[opaque pointer type] Add textual IR support for explicit type parameter to gep operator	2015-03-13 18:20:45 +00:00
pr22641.ll	Fix bug 22641	2015-02-24 01:02:42 +00:00
pr22674.ll	[opaque pointer type] Add textual IR support for explicit type parameter to load instruction	2015-02-27 21:17:42 +00:00
pr22856.ll	[SCEV] Fix PR22856.	2015-03-13 18:31:19 +00:00
pr24757.ll	[SCEV] Make getUDivExactExpr handle non-nuw multiplies correctly.	2017-01-18 23:56:42 +00:00
pr25369.ll	[SCEV] Fix PR25369	2015-11-02 02:06:01 +00:00
pr27315.ll	[SCEV] Don't always add no-wrap flags to post-inc add recs	2016-05-29 00:32:17 +00:00
pr28705.ll	Fix the runtime error caused by "Use ValueOffsetPair to enhance value reuse during SCEV expansion".	2016-08-09 20:40:03 +00:00
predicated-trip-count.ll	Re-commit [SCEV] Introduce a guarded backedge taken count and use it in LAA and LV	2016-04-08 14:29:09 +00:00
range-signedness.ll	[SCEV] Unify getUnsignedRange and getSignedRange	2015-03-09 21:43:43 +00:00
returned.ll	Teach SCEV to look through returned-argument functions	2016-07-11 02:48:23 +00:00
scev-aa.ll	[PM/AA] Wire up SCEVAA to the new pass manager's registry and test it.	2016-02-20 04:01:45 +00:00
scev-canonical-mode.ll	This patch is to fix PR26529 caused by r259736.	2016-02-09 00:07:08 +00:00
scev-dispositions.ll	[SCEV] Tweak the output format and content of -analyze	2016-05-03 17:49:57 +00:00
scev-expander-existing-value-offset.ll	Recommit "Use ValueOffsetPair to enhance value reuse during SCEV expansion".	2016-08-09 20:37:50 +00:00
scev-expander-incorrect-nowrap.ll	Bugfix: SCEVExpander incorrectly marks increment operations as no-wrap	2015-02-25 20:02:59 +00:00
scev-expander-reuse-gep.ll	Create a getelementptr instead of sub expr for ValueOffsetPair if the	2016-09-14 04:39:50 +00:00
scev-expander-reuse-unroll.ll	[UNROLL] Postpone ScalarEvolution::forgetLoop after TripCountSC is expanded	2016-08-25 16:17:18 +00:00
scev-expander-reuse-vect.ll	[UNROLL] Postpone ScalarEvolution::forgetLoop after TripCountSC is expanded	2016-08-25 16:17:18 +00:00
scev-invalid.ll	…
scev-prestart-nowrap.ll	[opaque pointer type] Add textual IR support for explicit type parameter to load instruction	2015-02-27 21:17:42 +00:00
sext-inreg.ll	[SCEV] Simplify/generalize howFarToZero solving.	2017-01-31 00:42:42 +00:00
sext-iv-0.ll	[SCEV] Add a `scalar-evolution-print-constant-ranges' option	2015-03-09 21:43:39 +00:00
sext-iv-1.ll	[opaque pointer type] Add textual IR support for explicit type parameter to load instruction	2015-02-27 21:17:42 +00:00
sext-iv-2.ll	[opaque pointer type] Add textual IR support for explicit type parameter to gep operator	2015-03-13 18:20:45 +00:00
sext-mul.ll	Model ashr(shl(x, n), m) as mul(x, 2^(n-m)) when n > m	2017-03-23 18:06:09 +00:00
sext-to-zext.ll	[SCEV] Be less eager about demoting zexts to sexts	2016-03-03 18:31:23 +00:00
sext-zero.ll	Model ashr(shl(x, n), m) as mul(x, 2^(n-m)) when n > m	2017-03-23 18:06:09 +00:00
shift-op.ll	[SCEV] Compute max backedge count for loops with "shift ivs"	2015-10-28 21:27:14 +00:00
sle.ll	[opaque pointer type] Add textual IR support for explicit type parameter to load instruction	2015-02-27 21:17:42 +00:00
smax-br-phi-idioms.ll	[SCEV] Don't infinitely recurse on unreachable code	2016-08-05 18:34:14 +00:00
smax.ll	…
trip-count-pow2.ll	[SCEV] Clarify behavior around max backedge taken count	2017-05-22 06:46:04 +00:00
trip-count-switch.ll	…
trip-count-unknown-stride.ll	Reapplying r278731 after fixing the problem that caused it to be reverted.	2016-09-16 14:38:13 +00:00
trip-count.ll	Be wary of abnormal exits from loop when exploiting UB	2016-06-09 01:13:59 +00:00
trip-count2.ll	[opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction	2015-02-27 19:29:02 +00:00
trip-count3.ll	Revert "Change memcpy/memset/memmove to have dest and source alignments."	2015-11-19 05:56:52 +00:00
trip-count4.ll	[opaque pointer type] Add textual IR support for explicit type parameter to load instruction	2015-02-27 21:17:42 +00:00
trip-count5.ll	[SCEV] Un-grep'ify tests; NFC	2016-08-05 20:33:49 +00:00
trip-count6.ll	[opaque pointer type] Add textual IR support for explicit type parameter to load instruction	2015-02-27 21:17:42 +00:00
trip-count7.ll	[opaque pointer type] Add textual IR support for explicit type parameter to load instruction	2015-02-27 21:17:42 +00:00
trip-count8.ll	…
trip-count9.ll	…
trip-count10.ll	…
trip-count11.ll	[SCEV] Add a `scalar-evolution-print-constant-ranges' option	2015-03-09 21:43:39 +00:00
trip-count12.ll	[opaque pointer type] Add textual IR support for explicit type parameter to load instruction	2015-02-27 21:17:42 +00:00
trip-count13.ll	[LoopUnroll] Keep the loop test only on the first iteration of max-or-zero loops	2016-10-21 11:08:48 +00:00
trip-count14.ll	[LoopUnroll] Keep the loop test only on the first iteration of max-or-zero loops	2016-10-21 11:08:48 +00:00
tripmultiple_calculation.ll	[SCEV] Fix trip multiple calculation	2017-03-20 20:25:46 +00:00
undefined.ll	…
unreachable-code.ll	…
unsimplified-loop.ll	…
zext-signed-addrec.ll	[opaque pointer type] Add textual IR support for explicit type parameter to the call instruction	2015-04-16 23:24:18 +00:00
zext-wrap.ll	[SCEV] Compute affine range in another way to avoid bitwidth extending.	2017-03-16 21:07:38 +00:00