On Tue, Oct 19, 2021 at 11:14:47AM +0100, Will Deacon wrote:

> > -1:	sve_flush_p_ffr
> > +1:	cbz		x0, 2f
> > +	sve_flush_p
> > +2:	sve_flush_ffr
> >  	ret

> I'm confused by this -- x0 seems to control whether or not we flush the
> predicate registers rather then ffr.

Yes, that's buggy - it got broken with rebasing for skipping the Z
register flush.  Thanks for spotting, sorry about that.