[Bug c++/55095] Wshift-overflow

[mpolacek at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55095

--- Comment #15 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Yea, I'm afraid we'll have to do what you suggest.  And warn for the sign bit
only when -Wshift-overflow=2.