https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78809
--- Comment #42 from qinzhao at gcc dot gnu.org --- just checked in the patch for fixing the unsigned char issue as: https://gcc.gnu.org/viewcvs/gcc?view=revision&revision=262907
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78809
--- Comment #42 from qinzhao at gcc dot gnu.org --- just checked in the patch for fixing the unsigned char issue as: https://gcc.gnu.org/viewcvs/gcc?view=revision&revision=262907