http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60576
--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> --- BTW, I'm also getting: +FAIL: gfortran.dg/ichar_3.f90 -O (internal compiler error) +FAIL: gfortran.dg/ichar_3.f90 -O (test for excess errors) +FAIL: gfortran.dg/intrinsics_kind_argument_1.f90 -O (internal compiler error) +FAIL: gfortran.dg/intrinsics_kind_argument_1.f90 -O (test for excess errors) when f951 is built with -fstack-protector, again, doesn't look like a recent regression, at some point this ICEd, at other points it needs -fstack-protector, -D_FORTIFY_SOURCE, valgrind or asan.