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From: Andrew Pinski <pinskia@gmail.com>
To: Jeff Law <jeffreyalaw@gmail.com>
Cc: "gcc-patches@gcc.gnu.org" <gcc-patches@gcc.gnu.org>
Subject: Re: [committed] Convert H8 port to LRA
Date: Wed, 7 Jun 2023 07:06:30 -0700	[thread overview]
Message-ID: <CA+=Sn1nGT4DGGWsAGsG2XiK35+8RpPBFWC7MwUfi7jxmMgnOnw@mail.gmail.com> (raw)
In-Reply-To: <b16a85e3-45a8-4c82-61ab-9adad2daf537@gmail.com>

On Sun, Jun 4, 2023 at 10:43 AM Jeff Law via Gcc-patches
<gcc-patches@gcc.gnu.org> wrote:
>
> With Vlad's recent LRA fix to the elimination code, the H8 can be
> converted to LRA.

Could you update the h8300 entry on https://gcc.gnu.org/backends.html
for this change?

Thanks,
Andrew

>
> This patch has two changes of note.
>
> First, this turns Zz into a standard constraint.  This helps reloading
> for the H8/SX movqi pattern.
>
> Second, this drops the whole pattern for the SX bit memory operations.
> I can't see why those exist to begin with.  They should be handled by
> the standard bit manipulation patterns.   If someone wants to try and
> improve SX bit support, that'd be great and they can do so within the
> LRA framework :-)
>
> Pushed to the trunk...
>
> Jeff

  reply	other threads:[~2023-06-07 14:06 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-06-04 17:42 Jeff Law
2023-06-07 14:06 ` Andrew Pinski [this message]
2023-06-07 21:27   ` Jeff Law

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