https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78809
--- Comment #46 from qinzhao at gcc dot gnu.org --- https://gcc.gnu.org/viewcvs/gcc?view=revision&revision=263028 was to fix the optimization level issue.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78809
--- Comment #46 from qinzhao at gcc dot gnu.org --- https://gcc.gnu.org/viewcvs/gcc?view=revision&revision=263028 was to fix the optimization level issue.