https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63404
--- Comment #9 from Dominique d'Humieres <dominiq at lps dot ens.fr> --- For the record the test gfortran.dg/typebound_operator_3.f03 also failed with -O1 and -m64 (see https://gcc.gnu.org/ml/gcc-regression/2014-09/msg00226.html). This is fixed by the patch at https://gcc.gnu.org/ml/gcc-patches/2014-09/msg02568.html.