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* Update to isl-0.20-65-gb822a210Tobias Grosser2018-08-091-1/+1
| | | | | | | 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
* update isl to: isl-0.18-791-ga22eb92Tobias Grosser2017-07-141-4/+4
| | | | | | This is a regular maintenance update llvm-svn: 308013
* Bump isl to isl-0.18-768-g033b61aeTobias Grosser2017-07-041-2/+42
| | | | | | | | | | | | | | 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-0.18-662-g17e172eTobias Grosser2017-05-271-2/+2
| | | | | | This is a general maintenance update llvm-svn: 304069
* Update to isl-0.18-592-gb50ad59Tobias Grosser2017-04-281-42/+45
| | | | | | This is just a general maintenance update. llvm-svn: 301624
* Update to isl-0.18-423-g30331feTobias Grosser2017-04-261-0/+4
| | | | | | This is just a general maintenance update. llvm-svn: 301433
* Update to isl-0.18-417-gb9e7334Tobias Grosser2017-04-061-199/+0
| | | | | | This is a regular maintenance update. llvm-svn: 299617
* Update to isl-0.18-410-gc253447Tobias Grosser2017-04-031-1/+12
| | | | | | | This is a regular maintenance update to ensure latest isl changes are tested in our buildbots. llvm-svn: 299350
* Update to isl-0.18-369-g5e613c6Tobias Grosser2017-03-141-36/+1
| | | | | | This is a regular maintenance update. llvm-svn: 297708
* Update to isl-0.18-356-g0b05d01Tobias Grosser2017-03-101-2/+1
| | | | | | This is a regular maintenance update. llvm-svn: 297449
* Update isl to isl-0.18-336-g1e193d9Tobias Grosser2017-03-071-66/+0
| | | | | | This is a regular maintenance update llvm-svn: 297169
* Update isl to isl-0.18-304-g1efe43dTobias Grosser2017-02-281-46/+1
| | | | | | This is a normal maintenance update. llvm-svn: 296441
* Update isl to isl-0.18-282-g12465a5Tobias Grosser2017-02-231-2/+2
| | | | | | | Besides a variety of smaller cleanups, this update also contains a correctness fix to isl coalesce which resolves a crash in Polly. llvm-svn: 295966
* Updated isl to isl-0.18-254-g6bc184dTobias Grosser2017-02-171-87/+255
| | | | | | | This update includes a couple more coalescing changes as well as a large number of isl-internal code cleanups (dead assigments, ...). llvm-svn: 295419
* Update to isl-0.18-43-g0b4256fTobias Grosser2016-12-311-0/+2
| | | | | | Even more isl coalesce changes. llvm-svn: 290783
* Update to isl-0.17.1-267-gbf9723dTobias Grosser2016-11-161-30/+30
| | | | | | | This update corrects an incorrect generation of min/max expressions in the isl AST generator and a problematic nullptr dereference. llvm-svn: 287098
* Update isl to isl-0.17.1-191-g540b2fdTobias Grosser2016-07-201-2/+2
| | | | | | This update resolves a bug in computing lexicographic minima/maxima. llvm-svn: 276138
* isl: isl-0.17.1-164-gcbba1b6Tobias Grosser2016-07-061-1/+1
| | | | | | | | | | | This is a regular maintenance update to ensure the latest version of isl is tested. Interesting Changes: - AST nodes and expressions are now printed as YAML llvm-svn: 274614
* Update isl to isl-0.17.1-57-g1879898Tobias Grosser2016-06-121-74/+173
| | | | | | | | | | | | | | | | | | | | | | | | | | | 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 Kruse2016-05-041-6/+33
| | | | | | | | | | | | 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-0.16.1-145-g243bf7cTobias Grosser2016-03-251-36/+612
| | | | | | | Just an import to keep track with the latest version of isl. We are not looking for specific features. llvm-svn: 264452
* Update to isl-0.16.1-68-g8fad211Tobias Grosser2016-02-261-49/+365
| | | | | | | | 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 Grosser2016-02-041-1/+2
| | | | | | | | | | | | | | | | | | | | 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 to ISL 0.16.1Michael Kruse2016-01-151-30/+350
| | | | llvm-svn: 257898
* Update isl to isl-0.15-129-gb086c90Tobias Grosser2015-09-011-1/+7
| | | | llvm-svn: 246552
* Update isl to isl-0.15-117-ge42acfeTobias Grosser2015-08-111-216/+603
| | | | | | | | | | | Besides other changes this version of isl contains a fundamental fix to memory corruption issues we have seen with imath-32 backed isl_ints. This update also contains a fix that ensures that the schedule-tree based version of isl's dependence analysis takes the domain of the schedule into account. llvm-svn: 244585
* Update isl to isl-0.15-30-g3518765Tobias Grosser2015-06-301-8/+85
| | | | | | | | This updated contains various changes to isl, including improvements to the AST generator. For Polly, the most important change is a fix that unbreaks builds on darwin (reported by: Jack Howard) llvm-svn: 241048
* Update isl to 93b8e43dTobias Grosser2015-05-281-41/+46
| | | | | | | This update brings mostly interface cleanups, but also fixes two bugs in imath (a memory leak, some undefined behavior). llvm-svn: 238422
* Update isl to 9f767f1766a0Tobias Grosser2015-05-131-5/+0
| | | | | | | | This fixes a bug in the isl scheduler (http://llvm.org/PR21934) Otherwise mostly minor changes. llvm-svn: 237250
* Update isl to c3892bebc0Tobias Grosser2015-05-091-4/+6
| | | | | | Various smaller improvements and bugfixes. llvm-svn: 236932
* Update isl to 0980603 'isl_tab_pip.c: parallel_constraints: drop useless ↵Tobias Grosser2015-02-251-4/+10
| | | | | | | | | | | | | | assignment' This update contains: - Fixes of minor issues detected by clang's scan_build - More schedule tree infrastructure additions This update slightly changes the output of our dependence analysis, but these changes are purely syntactially. llvm-svn: 230528
* Update to isl 99d53692baTobias Grosser2015-02-161-2/+265
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit imports the latest isl version into lib/External/isl. The changes relavant for Polly are: 1) Schedule trees [1] have been introduced as a more structured way to describe schedules. Polly does not yet use them, but we may switch to them in the near future. 2) Another set of coalescing changes [2] simplifies some data dependences and removes a couple of code generation artifacts. We now understand that the following sets can be merged: { Stmt_S1[i0, i1] -> Stmt_S2[i0 + i1] : i0 >= 0 and i1 <= 1023 - i0 and i1 >= 1 Stmt_S1[i0, 0] -> Stmt_S2[i0] : i0 <= 1023 and i0 >= 1} into: { Stmt_S1[i0, i1] -> Stmt_S2[i0 + i1] : i1 <= 1023 - i0 and i1 >= 0 and i1 >= 1 - i0 and i0 >= 0 } Changes of this kind reduce unnecessary specialization during code generation. - for (int c3 = 0; c3 <= 1023; c3 += 1) { - if (c3 % 2 == 0) { - Stmt_for_body3(c1, c3); - } else - Stmt_for_body3(c1, c3); - } + for (int c3 = 0; c3 <= 1023; c3 += 1) + Stmt_for_body3(c1, c3); [1] http://impact.gforge.inria.fr/impact2014/papers/impact2014-verdoolaege.pdf [2] http://impact.gforge.inria.fr/impact2015/papers/impact2015-verdoolaege.pdf llvm-svn: 229423
* Import isl(+imath) as an external library into PollyTobias Grosser2015-02-041-0/+3257
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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