Sanjoy Das 9e2c5010f6 [SCEV] make SCEV smarter about proving no-wrap. ...

Summary:
Teach SCEV to prove no overflow for an add recurrence by proving
something about the range of another add recurrence a loop-invariant
distance away from it.

Reviewers: atrick, hfinkel

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D7980

llvm-svn: 231305

2015-03-04 22:24:17 +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

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2007-08-06-Unsigned.ll

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2007-09-27-LargeStepping.ll

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2007-11-14-SignedAddRec.ll

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2007-11-18-OrInstruction.ll

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2008-02-11-ReversedCondition.ll

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2008-02-12-SMAXTripCount.ll

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2008-02-15-UMax.ll

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2008-05-25-NegativeStepToZero.ll

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2008-06-12-BinomialInt64.ll

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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

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2008-07-19-InfiniteLoop.ll

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2008-07-19-WrappingIV.ll

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2008-07-29-SGTTripCount.ll

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2008-07-29-SMinExpr.ll

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2008-08-04-IVOverflow.ll

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2008-08-04-LongAddRec.ll

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2008-11-02-QuadraticCrash.ll

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2008-11-15-CubicOOM.ll

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2008-11-18-LessThanOrEqual.ll

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2008-11-18-Stride1.ll

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2008-11-18-Stride2.ll

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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

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2008-12-14-StrideAndSigned.ll

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2008-12-15-DontUseSDiv.ll

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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

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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

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2011-03-09-ExactNoMaxBECount.ll

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2011-04-26-FoldAddRec.ll

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2011-10-04-ConstEvolve.ll

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2012-03-26-LoadConstant.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

2012-05-18-LoopPredRecurse.ll

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2012-05-29-MulAddRec.ll

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and-xor.ll

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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

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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

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

div-overflow.ll

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do-loop.ll

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fold.ll

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how-far-to-zero.ll

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incorrect-nsw.ll

Bugfix: SCEV incorrectly marks certain add recurrences as nsw

2015-02-09 18:34:55 +00:00

infer-prestart-no-wrap.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +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

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

max-trip-count-address-space.ll

[opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction

2015-02-27 19:29:02 +00:00

max-trip-count.ll

Make DataLayout Non-Optional in the Module

2015-03-04 18:43:29 +00:00

min-max-exprs.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

nowrap-preinc-limits.ll

[SCEV] make SCEV smarter about proving no-wrap.

2015-03-04 22:24:17 +00:00

nsw-offset-assume.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

nsw-offset.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

nsw.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

nw-sub-is-not-nw-add.ll

Make ScalarEvolution less aggressive with respect to no-wrap flags.

2015-01-22 00:48:47 +00:00

pointer-sign-bits.ll

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pr3909.ll

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pr22179.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +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

scev-aa.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +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-invalid.ll

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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

[opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction

2015-02-27 19:29:02 +00:00

sext-iv-0.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-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 load instruction

2015-02-27 21:17:42 +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.ll

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SolveQuadraticEquation.ll

[opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction

2015-02-27 19:29:02 +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

[opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction

2015-02-27 19:29:02 +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

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +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

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trip-count9.ll

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trip-count10.ll

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trip-count11.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +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-count-pow2.ll

ScalarEvolution: HowFarToZero was wrongly using signed division

2014-11-16 07:30:35 +00:00

trip-count-switch.ll

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trip-count.ll

[opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction

2015-02-27 19:29:02 +00:00

undefined.ll

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unreachable-code.ll

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unsimplified-loop.ll

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zext-signed-addrec.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

zext-wrap.ll

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