Re: JIT compiling with LLVM v9.0

From: Jeff Davis <pgsql(at)j-davis(dot)com>
To: Andres Freund <andres(at)anarazel(dot)de>
Cc: PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: JIT compiling with LLVM v9.0
Date: 2018-01-30 04:53:48
Message-ID: CAMp0ubcLeONEyio_mXM83JdLrjoJmoCNktXz5pCzmTieYu0URg@mail.gmail.com
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Hi,

On Mon, Jan 29, 2018 at 10:40 AM, Andres Freund <andres(at)anarazel(dot)de> wrote:
> Hi,
>
> On 2018-01-29 10:28:18 -0800, Jeff Davis wrote:
>> OK. How about this: are you open to changes that move us in the
>> direction of extensibility later? (By this I do *not* mean imposing a
>> bunch of requirements on you... either small changes to your patches
>> or something part of another commit.)
>
> I'm good with that.
>
>
>> Or are you determined that this always should be a part of core?

> I'm strongly against there not being an in-core JIT. I'm not at all
> against adding APIs that allow to do different JIT implementations out
> of core.

I can live with that.

I recommend that you discuss with packagers and a few others, to
reduce the chance of disagreement later.

> Well, the source would require an actual compiler around. And the
> inlining *just* for the function code itself isn't actually that
> interesting, you e.g. want to also be able to

I think you hit enter too quicly... what's the rest of that sentence?

Regards,
Jeff Davis

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