https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89430
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> --- This transformation is not valid for the C11/C++11 memory model.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89430
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> --- This transformation is not valid for the C11/C++11 memory model.