[Bug c/26732] different argument type not rejected for K&R style function definitions

[egallager at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=26732

--- Comment #7 from Eric Gallager <egallager at gcc dot gnu.org> ---
(In reply to Andrew Pinski from comment #6)
> Now we don't even error out at -O3.

Why would the -O3 matter?