https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99235
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |INVALID
Status|UNCONFIRMED |RESOLVED
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Once a pointer is "valid", it can never become a null pointer if decremented or
incremented. So this code is undefined and GCC is doing an ok thing to do.
