https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68803
Segher Boessenkool <segher at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |ASSIGNED Last reconfirmed| |2015-12-08 CC| |segher at gcc dot gnu.org Ever confirmed|0 |1 --- Comment #1 from Segher Boessenkool <segher at gcc dot gnu.org> --- Confirmed. The problem is there are no patterns for (ior (and (reg const)) (and (reg const))), i.e. an rl[wd]imi with a zero shift.