https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99488
--- Comment #10 from YunQiang Su <syq at debian dot org> --- I noticed that there are two go1 file: the first one has no this problem, and the second one has this problem: The difference of them the the option to generate them: -fno-checking vs -fchecking=1 -flto=jobserver I will continue to dig it.