Hi Paul, I fell for the same issue. You need a more recent isl library then 0.14.2. I installed 0.12.something when I started gfortran hacking and didn't upgrade since.
You can get the ISL lib from: ftp://gcc.gnu.org/pub/gcc/infrastructure/ or from your distribution (Fedora 21 is shipping 0.14.3, which is sufficient to run the test.) Regards, Andre On Sun, 8 Nov 2015 18:02:15 +0100 Paul Richard Thomas <paul.richard.tho...@gmail.com> wrote: > Dear Joost, > > These cause regressions on my tree: > f951: sorry, unimplemented: Graphite loop optimizations cannot be used > (ISL is not available)(-fgraphite, -fgraphite-identity, -floop-block, > -floop-interchange, -floop-strip-mine, -floop-parallelize-all, > -floop-unroll-and-jam, and -ftree-loop-linear) > > I suppose that I can deal with it. However, is there some way to > detect the presence of ISL? I'll try and figure out some dejagnu-ery > to pass the tests if this message comes up. > > Cheers > > Paul > > On 6 November 2015 at 10:45, VandeVondele Joost > <joost.vandevond...@mat.ethz.ch> wrote: > > Thanks Paul. I believe PR53852 won't be fixed on 4.9/5 as it seems to > > depend on the recent graphite cleanup work and recent isl. As such I'll > > commit to trunk only. > > > -- Andre Vehreschild * Email: vehre ad gmx dot de