https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108002
--- Comment #4 from Grant Li <pefy19950714 at gmail dot com> ---
(In reply to Andrew Pinski from comment #3)
> # pragma GCC optimize("-O2")
>
> The bugs that related to this pragma were fixed in GCC 4.8.0 (a few were
> fixed before).
> There were many changes that helped fix it.
> You could always build a newer GCC yourself but with an over 10 year release
> is not going to be really supported.
> There is nothing GCC bug report can do to help you.
>
> RHEL5 is just not supported.
Thanks! I will discuss it with my team, appreciate your prompt reply.
