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* Update to isl-0.20-65-gb822a210Tobias Grosser2018-08-091-0/+8
| | | | | | | This update fixes https://https:/llvm.org/PR38348. Thanks Michael for reporting the issue to isl and Sven for fixing the issue. llvm-svn: 339311
* Bump isl to isl-0.18-768-g033b61aeTobias Grosser2017-07-041-0/+7
| | | | | | | | | | | | | | Summary: This is a general maintenance update Reviewers: grosser Subscribers: srhines, fedor.sergeev, pollydev, llvm-commits Contributed-by: Maximilian Falkenstein <falkensm@student.ethz.ch> Differential Revision: https://reviews.llvm.org/D34903 llvm-svn: 307090
* Update isl to isl-0.17.1-57-g1879898Tobias Grosser2016-06-121-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | With this update the isl AST generation extracts disjunctive constraints early on. As a result, code that previously resulted in two branches with (close-to) identical code within them: if (P <= -1) { for (int c0 = 0; c0 < N; c0 += 1) Stmt_store(c0); } else if (P >= 1) for (int c0 = 0; c0 < N; c0 += 1) Stmt_store(c0); results now in only a single branch body: if (P <= -1 || P >= 1) for (int c0 = 0; c0 < N; c0 += 1) Stmt_store(c0); This resolves http://llvm.org/PR27559 Besides the above change, this isl update brings better simplification of sets/maps containing existentially quantified dimensions and fixes a bug in isl's coalescing. llvm-svn: 272500
* Update to ISL 0.17.Michael Kruse2016-05-041-0/+8
| | | | | | | | | | | | This release includes sevaral improvments compared to the previous version isl-0.16.1-145-g243bf7c (from the ISL 0.17 announcement): - optionally combine SCCs incrementally in scheduler - optionally maximize coincidence in scheduler - optionally avoid loop coalescing in scheduler - minor AST generator improvements - improve support for expansions in schedule trees llvm-svn: 268500
* Update to isl-0.16.1-68-g8fad211Tobias Grosser2016-02-261-0/+14
| | | | | | | | This commit updates to the latest isl development version. There is no specific feature we need on the Polly side, but we want to ensure test coverage for the latest isl changes. llvm-svn: 262001
* Update to isl-0.16.1-20-gee54b48Tobias Grosser2016-02-041-0/+16
| | | | | | | | | | | | | | | | | | | | This includes some (optional) improvements to the isl scheduler, which we do not use yet, as well as a fix for a bug previously also affecting Polly: commit 662ee9b7d45ebeb7629b239d3ed43442e25bf87c Author: Sven Verdoolaege <skimo@kotnet.org> Date: Mon Jan 25 16:59:32 2016 +0100 isl_basic_map_realign: perform Gaussian elimination on result Many parts of isl assume that Gaussian elimination has been applied to the equality constraints. In particular singleton_extract_point makes this assumption. The input to singleton_extract_point may have undergone parameter alignment. This parameter alignment (ultimately performed by isl_basic_map_realign) therefore needs to make sure the result preserves this property llvm-svn: 259757
* Update ISL to isl-0.15-3-g532568aMichael Kruse2015-06-181-6/+28
| | | | | | | | | | | | | | This version adds small integer optimization, but is not active by default. It will be enabled in a later commit. The schedule-fuse=min/max option has been replaced by the serialize-sccs option. Adapting Polly was necessary, but retaining the name polly-opt-fusion=min/max. Differential Revision: http://reviews.llvm.org/D10505 Reviewers: grosser llvm-svn: 240027
* Import isl(+imath) as an external library into PollyTobias Grosser2015-02-041-0/+305
With this patch Polly is always GPL-free (no dependency on GMP any more). As a result, building and distributing Polly will be easier. Furthermore, there is no need to tightly coordinate isl and Polly releases anymore. We import isl b3e0fa7a05d as well as imath 4d707e5ef2. These are the git versions Polly currently was tested with when using utils/checkout_isl.sh. The imported libraries are both MIT-style licensed. We build isl and imath with -fvisibility=hidden to avoid clashes in case other projects (such as gcc) use conflicting versions of isl. The use of imath can temporarily reduce compile-time performance of Polly. We will work on performance tuning in tree. Patches to isl should be contributed first to the main isl repository and can then later be reimported to Polly. This patch is also a prerequisite for the upcoming isl C++ interface. llvm-svn: 228193
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