https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70413
--- Comment #4 from Jeffrey Walton <noloader at gmail dot com> --- Bumping this. We ran into a similar issue in GCC 6.3.0 on ARM with -flto. openSUSE enabled LTO by default, so we added a test case for all platforms which support LTO (including Debian with its stale packages that never get updated).