[llvm-dev] LLVM Developers Meeting JIT BoF -- Request for Topics of Interest

[Lang Hames via llvm-dev]

Hi Praveen,

I would like to discuss the future/potential use-cases of LLVM JIT.


That sounds like a great topic. I can mention a couple of my use cases in
the meeting, but I'll be very keen to hear what everyone else has in mind.

I'm also interested in reducing the compilation time of code in JIT
> component independent of static compiler. Is it sounds interesting? :)


That sounds great too. To-date I've been focused on the API design
problems, but it's a great time for us to start monitoring/improving
performance too.

-- Lang.

On Mon, Sep 28, 2020 at 1:23 PM Praveen Velliengiri <
praveenvelliengiri at gmail.com> wrote:

> Hi,
> I would like to discuss the future/potential use-cases of LLVM JIT. I'm
> also interested in reducing the compilation time of code in JIT component
> independent of static compiler. Is it sounds interesting? :)
>
>
> On Sat, 26 Sep 2020 at 07:49, Andres Freund <andres at anarazel.de> wrote:
>
>> Hi,
>>
>> On 2020-09-25 19:05:42 -0700, Lang Hames wrote:
>> > The 2020 Virtual LLVM Developer's Meeting is coming up the week after
>> next.
>> > I'll be hosting a JIT Birds-of-a-Feather session on Thursday the 8th at
>> > 10:55am PDT (See http://llvm.org/devmtg/2020-09/schedule/). I'm
>> planning to
>> > run this more like a Round Table: Minimal introduction, plenty of time
>> for
>> > discussion.
>> >
>> > Does anyone have any LLVM JIT related topics that they would
>> particularly
>> > like to discuss at this session? Any questions that they think could be
>> > best answered by a round-table style discussion? I'll aim to rope in the
>> > right people and prepare answers to make sure we get the most out of the
>> > session.
>>
>> A topic that I'd find interesting is what it'd take to make it easier to
>> use profile guided optimization in the context of JIT.  A few years back
>> I crudely hacked this together, but it was fairly ugly. It'd be nice to
>> make that easier.  Possibly too complicated for that type of session?
>>
>> I dimly recall that the main issue was that there is no good way to
>> extract the profile information without going through files / applying
>> the profile data without going through files.
>>
>> Greetings,
>>
>> Andres Freund
>>
>
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