[Bug tree-optimization/104196] [12 Regression] wrong code at -O2 and above on x86_64-linux-gnu

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104196

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Andrew Pinski from comment #2)
> Also for some reason using the C++ front-end also works around the issue ...
> (but I don't see how though).

-ffinite-loops is the difference there.