https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88646
Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |INVALID

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Signed integer overflow is undefined.
In the case of short and signed char, the operations are promoted to int due to
the way C++ works.

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