http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29333
--- Comment #7 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-01-23 10:25:20 UTC --- (In reply to comment #6) > (In reply to comment #5) > > This is the patch which I am testing: > > I Have a slightly different one since we should do a few more things before > the > mergephi and also we ccannot remove the first mergephi as that causes vpr to > lose some optimizations. I think it makes sense to do mergephi before phiopt. mergephi should not be required for VRP - can you file a bug with a testcase?