https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59465
--- Comment #6 from Marek Polacek <mpolacek at gcc dot gnu.org> --- Started to be accepted with r0-110915-ga034826198b771: https://gcc.gnu.org/pipermail/gcc-patches/2011-August/320236.html which was supposed to be a cleanup, not a deliberate change to start accepting the code.