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* Update isl to isl-0.19-224-gce84a511Tobias Grosser2018-07-062-76/+53
| | | | | | | | This is a maintenance update. Besides many minor changes it ships two functions "isl_*_list_size" and "isl_*_list_get_at" which will allow us to simplify the iterator implementation in Polly. llvm-svn: 336425
* Update isl to isl-0.19-107-gc4fe33d8Tobias Grosser2018-04-214-13/+29
| | | | | | This is a regular maintenance update. llvm-svn: 330496
* Update isl to isl-0.18-662-g17e172eTobias Grosser2017-05-2737-219/+244
| | | | | | This is a general maintenance update llvm-svn: 304069
* Updated isl to isl-0.18-254-g6bc184dTobias Grosser2017-02-1717-35/+41
| | | | | | | 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-0.17.1-284-gbb38638Tobias Grosser2016-11-221-15/+18
| | | | | | Regular maintenance update with only minor changes. llvm-svn: 287703
* Update to isl-0.17.1-267-gbf9723dTobias Grosser2016-11-162-0/+13
| | | | | | | This update corrects an incorrect generation of min/max expressions in the isl AST generator and a problematic nullptr dereference. llvm-svn: 287098
* isl: isl-0.17.1-164-gcbba1b6Tobias Grosser2016-07-062-0/+7
| | | | | | | | | | | 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-0.17.1-84-g72ffe88Tobias Grosser2016-06-238-86/+84
| | | | | | | This is a regular maintenance update to ensure we are testing with a recent version of isl. llvm-svn: 273597
* Update isl to isl-0.17.1-57-g1879898Tobias Grosser2016-06-1244-54/+102
| | | | | | | | | | | | | | | | | | | | | | | | | | | 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 Kruse2016-05-046-78/+68
| | | | | | | | | | | | 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 Grosser2016-03-254-3/+75
| | | | | | | 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 Grosser2016-02-263-3/+3
| | | | | | | | 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 0.16.1Michael Kruse2016-01-1516-87/+58
| | | | llvm-svn: 257898
* Update isl to isl-0.15-142-gf101714Tobias Grosser2015-12-041-19/+12
| | | | | | | | | | This update brings in improvements to isl's 'isolate' option that reduce the number of code versions generated. This results in both code-size and compile time reduction for outer loop vectorization. Thanks to Roman Garev and Sven Verdoolaege for working on this improvement. llvm-svn: 254706
* Update isl to isl-0.15-117-ge42acfeTobias Grosser2015-08-113-3/+3
| | | | | | | | | | | 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-0.15-86-g595055eTobias Grosser2015-07-242-2/+2
| | | | | | | Besides a couple of cleanups and refactorings in isl, this change set fixes a couple of bugs in isl, that can cause issues during code generation. llvm-svn: 243110
* Update ISL to isl-0.15-61-gcea776fMichael Kruse2015-07-213-1/+26
| | | | | | | The motivation is to fix a wrong use of the inline qualifier. This fixes the Polly build using Visual Studio 2015 RC. llvm-svn: 242780
* Update isl to isl-0.15-35-ga1e44f0Tobias Grosser2015-07-021-6/+8
| | | | | | This fixes a memory leak with in the sioimath backend. llvm-svn: 241247
* Update isl to isl-0.15-30-g3518765Tobias Grosser2015-06-305-5/+55
| | | | | | | | 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 94d707dTobias Grosser2015-03-19368-1042/+2959
| | | | | | | | | The major improvements are: - Extended schedule tree support - AST generation from schedule trees llvm-svn: 232709
* Update to isl 99d53692baTobias Grosser2015-02-1614-162/+139
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 Grosser2015-02-04623-0/+4734
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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