I think it does not matter, skipping means the CPU does not execute it, but it still has room in RoB which is enough for defending Spectre. see this article: ht

I think it does not matter, skipping means the CPU does not execute it, but it still has room in RoB which is enough for defending Spectre. see this article: http://blog.stuffedcow.net/2013/05/measuring-rob-capacity/ http://blog.stuffedcow.net/2013/05/measuring-rob-capacity/