Hi! On Tue, Oct 24, 2023 at 07:49:10PM +0100, Richard Sandiford wrote: > This patch adds a combine pass that runs late in the pipeline.
But it is not. It is a completely new thing, and much closer to fwprop than to combine, too. Could you rename it to something else, please? Something less confusing to both users and maintainers :-) > There are two instances: one between combine and split1, So, what kind of things does this do that the real combine does not? And, same question but for fwprop. That would be the crucial motivation for why we want to have this new pass at all :-) > The pass currently has a single objective: remove definitions by > substituting into all uses. The easy case ;-) Segher
