https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88739
--- Comment #59 from John Dong <dongjianqiang2 at huawei dot com> --- (In reply to John Dong from comment #58) > Created attachment 46022 [details] > fix the union bug on 7.3.0 hi, I tried to fix the bug when expanding. is it OK?