On Thu, Feb 13, 2014 at 2:20 PM, Tobias Grosser <tob...@grosser.es> wrote: > On 02/13/2014 08:19 AM, Richard Biener wrote: >> >> On Mon, Jan 27, 2014 at 8:40 PM, Tobias Grosser <tob...@grosser.es> wrote: >>> >>> On 01/27/2014 08:29 PM, Tobias Burnus wrote: >>>> >>>> >>>> Hello, >>>> >>>> motivated by the recent MPC 1.0.2 announcement, I looked at >>>> ./contrib/download_prerequisites and also at >>>> ftp://gcc.gnu.org/pub/gcc/infrastructure/ to see which versions are >>>> offered there. >>>> >>>> Question: Would it make sense to place newer versions into >>>> infrastructure and update ./contrib/download_prerequisites for those? I >>>> believe most distros use newer versions nowadays and as some bugs have >>>> been fixed in newer versions... >>>> >>>> * GMP: infrastructure 4.3.2 (2010-01-08), current: 5.1.3 (2013-09-30) >>>> * mpfr: infrastructure 2.4.2 (2009-11-30), current: 3.1.2 (2013-03-13) >>>> * mpc: infrastructure 0.8.1 (2009-12-08), current: 1.0.2 (2014-01-15) >>>> * ISL: infrastructure 0.11.1 (2012-12-12), current: 0.12.2 (2014-01-12) >>>> * CLooG: infrastructure 0.18.0 (2012-12-20), current: 0.18.1 >>>> (2013-10-11) [Or 0.18.2 (2013-12-20) according to the GIT tag, but that >>>> release only added a howto_cloog_release.txt file ...] >>> >>> >>> >>> Hi Tobias, >>> >>> that sounds like a great idea. We are internally currently working on >>> preparing graphite for the isl 0.13.0 release, which is a large >>> improvement >>> and e.g. provides a computeout facility that allows us to stop dependence >>> analysis in case the dependence problem is too complex to solve. This >>> would >>> address some of the open graphite bugs. Even before this is ready, >>> upgrading >>> to CLooG 0.18.1 and isl-0.12.1 would probably be a good thing to do. >> >> >> I've tested building the 4.8 branch with cloog 0.18.1 and isl 0.12.2 and >> that seems to work. Updating the infrastructure dir sounds good to me, >> I'll do it. > > > Thanks Richi! > > Could we also make the minimal library requirement for gcc the following > two?
I see no reason to do that at this point (I suppose only dropping support for ISL < 0.12.2 would help you?), but I have updated the recommended versions as documented in install.texi to those two. When trunk re-opens for stage1 we can drop support for older versions once we make code changes that make those versions no longer work. Pretty high on my wishlist and a good motivation would be to get rid of the cloog dependency by using the ISL code generator ;) I'll help as good as I can with all problems that arise in GCC specific areas such as GIMPLE and SSA. Thanks, Richard. > Cheers, > Tobias >
