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* Update isl to isl-0.19-224-gce84a511Tobias Grosser2018-07-061-6/+5
| | | | | | | | 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 Grosser2018-04-211-42/+215
| | | | | | This is a regular maintenance update. llvm-svn: 330496
* Update isl to isl-0.18-1047-g4a20ef8Tobias Grosser2018-02-201-2/+2
| | | | | | | | | | | | | | | | | | This update: - Removes several deprecated functions (e.g., isl_band). - Improves the pretty-printing of sets by detecting modulos and "false" equalities. - Minor improvements to coalescing and increased robustness of the isl scheduler. This update does not yet include isl commit isl-0.18-90-gd00cb45 (isl_pw_*_alloc: add missing check for compatible spaces, Wed Sep 6 12:18:04 2017 +0200), as this additional check is too tight and unfortunately causes two test case failures in Polly. A patch has been submitted to isl and will be included in the next isl update for Polly. llvm-svn: 325557
* Update isl to isl-0.18-800-g4018f45Tobias Grosser2017-07-271-5/+2
| | | | | | | | | This fixes a bug in isl_flow where triggering the compute out could result in undefined or unexpected behavior. This fixes some recent regressions we saw in the android buildbots. Thanks Eli Friedman for reducing the corresponding test cases. llvm-svn: 309274
* Update isl to isl-0.18-282-g12465a5Tobias Grosser2017-02-231-1/+1
| | | | | | | 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 Grosser2017-02-171-56/+144
| | | | | | | 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 ISL to isl-0.17.1-200-gd8de4ea.Michael Kruse2016-08-171-2/+9
| | | | | | This version fixes a bug in set coalescing. llvm-svn: 278936
* Update to ISL 0.16.1Michael Kruse2016-01-151-8/+185
| | | | llvm-svn: 257898
* Update isl to 6be6768eTobias Grosser2015-05-181-1/+1
| | | | | | | | Besides a couple of interface cleanups, this change also contains a performance optimization of isl_mat_product that should give us up to almost 6% compiletime reduction. llvm-svn: 237616
* Update isl to c3892bebc0Tobias Grosser2015-05-091-0/+1
| | | | | | Various smaller improvements and bugfixes. llvm-svn: 236932
* Update isl to 0980603 'isl_tab_pip.c: parallel_constraints: drop useless ↵Tobias Grosser2015-02-251-5/+0
| | | | | | | | | | | | | | 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 Grosser2015-02-161-216/+631
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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/+3370
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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