https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103090
--- Comment #2 from Hongtao.liu <crazylht at gmail dot com> --- Similar like Jakub did in r7-532, We need another IFN & optab to do the optimization. The IFN and optab is like atomic_logic_test_and_set_sf which used to perform logic operation and set SF.