[Bug target/110591] [i386] (Maybe) Missed optimisation: _cmpccxadd sets flags

[crazylht at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110591

--- Comment #3 from Hongtao.liu <crazylht at gmail dot com> ---
Created attachment 55510
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=55510&action=edit
untested patch.

Under testing.