https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101200
--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> --- BTW, I certainly can't reproduce what #c0 shows, while I see movzbl in there because QImode loads are done that way in most tunings, I certainly see shrb $4, %al rather than 64-bit right shift.