no need to restore shadowed reg, shaves 10% from runtime for tlb handler on pcxl, more on pcxs/pcxt due to conditional pte ref update; tested on pcxt,pcxl by me on pcxs by miod
no need to restore shadowed reg, shaves 10% from runtime for tlb handler on pcxl, more on pcxs/pcxt due to conditional pte ref update; tested on pcxt,pcxl by me on pcxs by miod

orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars