[Bug c/105950] > O2 optimization causes runtime (SIGILL) during main initialization

[jkanapes at yahoo dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105950

--- Comment #4 from John Kanapes <jkanapes at yahoo dot com> ---
I don't know UBSan. What's more these are not user-friendly, compiler errors.
It reminds me of assemblers:( I need readable errors with line numbers,
otherwise I don't know what to change:(