Hmm, what's the advantage of doing memory renaming for unretired stores? Won't the value just be forwarded from the store buffer? The patent is a great resourc

Hmm, what's the advantage of doing memory renaming for unretired stores? Won't the value just be forwarded from the store buffer? The patent is a great resource, thanks for that. But I think it supports my point when it suggests that memory renaming may persist indefinitely: Alternatively, reclamation of the original physical register could be delayed to facilitate later memory renaming. and later: ...the MRT may always retain physical registers of N past store operations...the physical register is reclaimed to the free list when it exits the MRT, for example, when it is no longer one of the N most recent store operations. So it's possible. I don't think we know from Agner's work whether AMD went this route or not.