http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50904
--- Comment #33 from Dominique d'Humieres <dominiq at lps dot ens.fr> 2011-12-02 16:45:24 UTC --- > The failing polyhedron 2005 benchmark is linpk which can be seen with -Ofast > on > x86_64-apple-darwin11... > > > Value= 25.114499300 Target= 23.100000000 Tolerance= 2.0000000000 > F I think this test is not relevant: the "target" is already a residual error, hence very sensitive to the way the computation is performed and a 10% tolerance cannot be used to evaluate the "accuracy" of the residual.