http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51005
--- Comment #3 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-11-07 11:00:39 UTC --- Note that PRE already performs TODO_update_ssa_only_virtuals (well, of course only if something marked the VOP for renaming which happens whenever it inserts a load somewhere). So it might indeed be not too bad to do this (given the amount of code we can delete ...)
