[PATCH] D17257: New utility class ReachingPhysDefs for post-ra analysis.

[Jonas Paulsson via Phabricator via llvm-commits]

jonpa added a comment.

I still feel that it would be generally useful to have a general reaching phys-def analysis class in place, instead of targets having their own versions. Since I can't find one, I wonder if others agree still?

I remember that Krzysztof pointed out that there is also an alternative algorithm in the Hexagon backend (RDF), which he then said he may factor out. Krzysztof, any news on this?

I also remember a discussion about corrupt live-in lists, but I am not sure if those problems have been fixed... I think this patch (if not RDF will take its place), needs to be updated for any such changes of live-ins.


https://reviews.llvm.org/D17257