http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51455
--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> 2011-12-07 19:28:29 UTC --- movzbl 0x20d(%rsp),%eax is the same as: movzbq 0x20d(%rsp),%rax as all l instructions zero extend to q.
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51455
--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> 2011-12-07 19:28:29 UTC --- movzbl 0x20d(%rsp),%eax is the same as: movzbq 0x20d(%rsp),%rax as all l instructions zero extend to q.