https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106995
--- Comment #1 from Li Shaohua <shaohua.li at inf dot ethz.ch> --- Sorry, it should be `gcc-tk -w -O2 a.c`
shaohua.li at inf dot ethz.ch via Gcc-bugs Wed, 21 Sep 2022 01:14:05 -0700
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106995
--- Comment #1 from Li Shaohua <shaohua.li at inf dot ethz.ch> --- Sorry, it should be `gcc-tk -w -O2 a.c`