Commit Graph

2 Commits

Author SHA1 Message Date
Tobias Grosser e395da7986 Update isl to 0980603 'isl_tab_pip.c: parallel_constraints: drop useless 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
2015-02-25 19:34:52 +00:00
Tobias Grosser 52a25237d8 Import isl(+imath) as an external library into Polly
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
2015-02-04 20:55:43 +00:00