[Bug middle-end/78809] Inline strcmp with small constant strings

[qing.zhao at oracle dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78809

--- Comment #22 from Qing Zhao <qing.zhao at oracle dot com> ---
https://gcc.gnu.org/ml/gcc-patches/2017-12/msg00962.html
2nd patch