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From: "H.J. Lu" <hjl.tools@gmail.com>
Date: Mon, 7 Mar 2022 06:19:25 -0800
Message-ID: <CAMe9rOpCiQYBMEhJ0517knJ44zoOuguMEGRV9XjBWzdvApWFtQ@mail.gmail.com>
Subject: Re: x86: IAMCU, L1OM, and K1OM
To: Jan Beulich <jbeulich@suse.com>
Cc: Binutils <binutils@sourceware.org>
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On Mon, Mar 7, 2022 at 6:14 AM Jan Beulich <jbeulich@suse.com> wrote:
>
> On 07.03.2022 15:09, H.J. Lu wrote:
> > On Mon, Mar 7, 2022 at 3:04 AM Jan Beulich <jbeulich@suse.com> wrote:
> >> may I ask what the status / purpose of these is? They were added years
> >> ago, but actually useful functionality has never appeared. Since I've
> >> noticed a couple of issues with the involved gas code, I'm now
> >> wondering: Should I try to make fixes, or can the logic rather be
> >> purged altogether? Even if the overhead isn't high, the presence of
> >> support for these not really usable sub-architectures is causing some
> >> extra cycles to be wasted on each and every gas invocation.
> >
> > We can deprecate L1OM and K1OM.
>
> And "deprecate" == "delete" or something less heavy?

We can delete them and make an announcement.

> >  But we should keep IAMCU.
>
> IOW there's stuff to come to actually fill this?
>

What do you mean?  IAMCU is used.

-- 
H.J.