https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86131
Segher Boessenkool <segher at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |segher at gcc dot gnu.org --- Comment #1 from Segher Boessenkool <segher at gcc dot gnu.org> --- A multiply is cost 2 for mpccore. Expand creates a single "mulli ..,-8" for this. And no other RTL pass will break this apart again.