[Bug c++/95949] mame build succeeds with -O3 but fails with -O2 and all -O3 flags added manually

[belegdol at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95949

--- Comment #2 from Julian Sikorski <belegdol at gmail dot com> ---
The corresponding mame bug:
https://github.com/mamedev/mame/issues/6804