http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38785
--- Comment #28 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-01-16 13:14:22 UTC --- Re-confirmed. Regular PRE has got some kind of a cost-model (restricting insertion to the case where we eliminate a redundancy on a fast path). Partial-insertion has not been updated in a similar manner.
