https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106277
Alexander Monakov <amonakov at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |amonakov at gcc dot gnu.org --- Comment #2 from Alexander Monakov <amonakov at gcc dot gnu.org> --- You probably mean the addition, not the load. It cannot: it really is an 8-bit addition, and if pseudo 91 is allocated to e.g. AH or another "high" 8-bit register, there really will need to be an explicit zero-extend.