[Bug c/60846] Add 128-bit integer types for general use on 32-bit/64-bit CPUs

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60846

--- Comment #8 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Note with __builtin_*_overflow, implementing 128bit integer (or larger) as a
class for C++ should be easier now.