[Bug c/117543] Miscompile with -O1 and -O0/2/3

[yunboni at smail dot nju.edu.cn via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117543

--- Comment #1 from Yunbo Ni <yunboni at smail dot nju.edu.cn> ---
Sorry I just found I reverted to the wrong commit. I would check it right now.