[Bug c++/118924] [12/13/14/15 regression] Wrong code at -O2 and above leading to uninitialized accesses on aarch64-linux-gnu since r10-917-g3b47da42de621c

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118924

--- Comment #9 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
The reason why it works with the C front-end is actaully because of
r9-6782-g2a82beaa820410. There C front-end explictly makes enum and the
underlying integer types have the same aliasing set.

So the question is should C++ have the same treatment or is that another
difference. Plus reading the std-discussion is that C++ is difference from C
here.

Still the array assignment is wrong from the front-end.