http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52254
Richard Guenther <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Severity|normal |enhancement
--- Comment #2 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-02-15
11:21:53 UTC ---
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)
