[Bug target/58838] mullw sets condition code incorrectly.

[dje at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58838

--- Comment #3 from David Edelsohn <dje at gcc dot gnu.org> ---
Created attachment 31071
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=31071&action=edit
Disable mullw. dot form in 64 bit mode

Revised patch that also disables splitters.