[Bug c++/91215] Compiled program loops endlessly because of -O2 with g++ 8.3.0

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91215

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

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

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
In C++ (unlike C), fallthrough to end block where the return type is not void
is undefined.  In C, only when the value that is returned is undefined.