On Mon, Dec 14, 2009 at 05:52:50PM -0500, Jean Christophe Beyler wrote: > I thought of that but then how do I add the cost ? I also have another > problem: there is a second instruction that would have the exact same > signature if I use an unspec. > > Is there a solution for that and how do I handle the cost then ? > - Just say that an unspec has a higher cost?
Are you really talking about rtx_costs? It sounds to me more like you want to change your scheduler. -- Daniel Jacobowitz CodeSourcery