http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52254
--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-02-16 03:00:22 UTC --- (In reply to comment #2) > The combine stage should have access to a valueize() hook as well, to query > SSA propagator/VNs lattice. That hook can maybe supply this extra info > (I wanted to make VRP info persistent for some time, in SSA_NAME_PTR_INFO > much like we have alignment info there which really is kind of a value-range) I was thinking about adding that. Even using nonzero bits to create a simple range.
