https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93102
--- Comment #2 from vfdff <zhongyunde at huawei dot com> --- do you mean the optimization memtioned https://gcc.gnu.org/bugzilla/show_bug.cgi?id=47980 Yes, it can be with optimized option '-fmerge-all-constants', but it doesn't active in default.