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* Update isl to isl-0.18-1047-g4a20ef8Tobias Grosser2018-02-201-0/+1
| | | | | | | | | | | | | | | | | | 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
* Updated isl to isl-0.18-254-g6bc184dTobias Grosser2017-02-171-6/+7
| | | | | | | 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-0.15-30-g3518765Tobias Grosser2015-06-301-16/+65
| | | | | | | | 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 Grosser2015-05-281-14/+15
| | | | | | | 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 0980603 'isl_tab_pip.c: parallel_constraints: drop useless ↵Tobias Grosser2015-02-251-2/+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
* Import isl(+imath) as an external library into PollyTobias Grosser2015-02-041-0/+491
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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