https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65345
--- Comment #8 from Marek Polacek <mpolacek at gcc dot gnu.org> --- A note to myself: address the TARGET_ATOMIC_ASSIGN_EXPAND_FENV implementations: <https://gcc.gnu.org/ml/gcc-patches/2015-03/msg01094.html>.