[cfe-dev] [llvm-dev] [RFC] Backend for Motorola 6800 series CPU (M68k)

[Min-Yih Hsu via cfe-dev]

Hi Renato,

Thanks for all your feedback, those were extremely helpful, especially the
guidelines to split the patches. I think in my case, patch 3 ~ 6 are the
most problematic, I will rework them shortly.

And most importantly, I'll present a roadmap regarding blockers we need to
clear and milestones to reach before graduating from experimental targets.
We'll also try to prepare the buildbot, as well as testing bots running
m68k QEMU (IIUC, we need to prepare our own server...right?)

Best,
Min

On Mon, Sep 28, 2020 at 2:57 AM Renato Golin <rengolin at gmail.com> wrote:

> On Mon, 28 Sep 2020 at 10:37, John Paul Adrian Glaubitz <
> glaubitz at physik.fu-berlin.de> wrote:
>
>> So, I think in case there was a problem with the backend in LLVM, the
>> community
>> would have enough momentum to work towards solving this issue.
>>
>
> Great!
>
> I agree. But we will enable the target in Debian the moment it becomes
>> usable
>> and we will expose it to as much testing as possible to unconver bugs or
>> remaining
>> features and report them upstream.
>>
>
> That's good to hear. The Debian project has helped us do extensive tests
> in other hardware and it provided us with confidence that what we build
> actually works in some real world context.
>
>
> We have a rough list of remaining issues in [1] and [2]. Min also gave a
>> talk
>> in [3] where he drafted out the TODO and plans for the backend [3]. The
>> talk
>> is also available on Youtube [4].
>>
>
> So, IIUC, the current implementation is reasonably complete. You're able
> to compile C programs and run them on real hardware. The main effort now is
> to upstream what you have, and continue the development.
>
> This would make the "plan" easier. Getting the current state upstream
> would make for a nice experimental target. Getting Debian packages compiled
> and tested with QEMU would demonstrate production quality.
>
> cheers,
> --renato
>


-- 
Min-Yih Hsu
Ph.D Student in ICS Department, University of California, Irvine (UCI).
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