[Bug fortran/53957] Polyhedron 11 benchmark: MP_PROP_DESIGN twice as long as other compiler

[burnus at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53957

--- Comment #8 from Tobias Burnus <burnus at gcc dot gnu.org> 2012-07-26 09:58:41 UTC ---
(In reply to comment #7)
> so it would be still worthwhile to pursue your patch if it does not have
> negative effects elsewhere.  We should be able to fix the induction code
> to handle this case.

Regarding negative (or positive) impact with regards to performance: That's
difficult to test :-(

However, with the patch, f951 stops with the following ICE
  internal compiler error: in free_regset_pool, at sel-sched-ir.c:994
with gfortran.dg/pr42294.f and gfortran.dg/pr44691.f.