[PATCH] x86: Add {disp16} pseudo prefix

[H.J. Lu]

On Thu, Jul 30, 2020 at 11:22 PM Jan Beulich <jbeulich@suse.com> wrote:
>
> On 30.07.2020 00:53, H.J. Lu wrote:
> > On Wed, Jul 29, 2020 at 1:26 PM Jan Beulich <jbeulich@suse.com> wrote:
> >> On 28.07.2020 22:30, H.J. Lu wrote:
> >>> Note: {disp16} can be also used on branches in 32-bit mode.
> >>
> >> But you don't add any tests to this effect, so it's hard to see what
> >> exactly this means. To be honest I'm not sure this is helpful: A means
> >> to widen the default displacement may be useful, but one to narrow not
> >> just the displacement, but also the resulting new IP?
> >
> > {disp16} can be used to generate "branch rel16".  But implementation
> > may be non-trivial.
>
> Oh, so you mean it could be used in principle, not that it now
> can be used right with the introduction of the new pseudo
> prefix? If so, I simply misunderstood your use of "can", sorry.
>

Yes.

-- 
H.J.