Roman Lebedev 78b8ce40ef Reland [SCEV] Improve modelling for (null) pointer constants ... This reverts commit 329aeb5db4, and relands commit 61f006ac65. This is a continuation of D89456. As it was suggested there, now that SCEV models `PtrToInt`, we can try to improve SCEV's pointer handling. In particular, i believe, i will need this in the future to further fix `SCEVAddExpr`operation type handling. This removes special handling of `ConstantPointerNull` from `ScalarEvolution::createSCEV()`, and add constant folding into `ScalarEvolution::getPtrToIntExpr()`. This way, `null` constants stay as such in SCEV's, but gracefully become zero integers when asked. Reviewed By: Meinersbur Differential Revision: https://reviews.llvm.org/D98147		2021-03-13 16:05:34 +03:00
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DependenceInfo.cpp	[Polly] Regenerate isl-noexceptions.h.	2021-02-14 19:17:54 -06:00
PolyhedralInfo.cpp	Sink all InitializePasses.h includes	2019-11-13 16:34:37 -08:00
PruneUnprofitable.cpp	[Polly] Port PruneUnprofitable to the NewPM.	2021-02-09 23:56:20 -06:00
ScopBuilder.cpp	Reland [SCEV] Improve modelling for (null) pointer constants	2021-03-13 16:05:34 +03:00
ScopDetection.cpp	[Polly] Preserve DetectionContext references.	2021-02-13 03:36:09 -06:00
ScopDetectionDiagnostic.cpp	Fix polly build after StringRef change.	2020-01-28 19:44:20 -08:00
ScopGraphPrinter.cpp	[CFGPrinter][CallPrinter][polly] Adding distinct structure for CFGDOTInfo	2020-04-06 17:42:54 +00:00
ScopInfo.cpp	[Polly] Regenerate isl-noexceptions.h.	2021-02-14 19:17:54 -06:00
ScopPass.cpp	Apply include-what-you-use #include removal suggestions. NFC.	2019-03-28 20:19:49 +00:00