Commit Graph

3 Commits

Author SHA1 Message Date
Tobias Grosser a7f1e04031 Update to isl-0.16.1-20-gee54b48
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
2016-02-04 06:19:12 +00:00
Michael Kruse c59f22c556 Update ISL to isl-0.15-3-g532568a
This version adds small integer optimization, but is not active by
default. It will be enabled in a later commit.
    
The schedule-fuse=min/max option has been replaced by the
serialize-sccs option. Adapting Polly was necessary, but retaining the
name polly-opt-fusion=min/max.

Differential Revision: http://reviews.llvm.org/D10505

Reviewers: grosser
llvm-svn: 240027
2015-06-18 16:45:40 +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