[cfe-dev] RFC: refactoring clangDriver - diagnostics classes

[James Y Knight via cfe-dev]

FWIW, agreement on the rough plan to split clang driver from the rest of
clang was certainly how I remember the previous thread ending, and it still
seems like a reasonable idea to me.

On Thu, Nov 26, 2020, 12:04 PM Andrzej Warzynski via cfe-dev <
cfe-dev at lists.llvm.org> wrote:

>
>
> On 25/11/2020 21:39, David Blaikie wrote:
>
> >
> > It sounded like Richard was saying in the other thread, that if flang
> > was going to share the integrated preprocessor - then the amount of
> > code shared would be quite large and maybe flang depending on clang
> > would be the right solution to that, if that's the direction we're
> > going in.
>
> Our goal has always been _just the driver_.
>
> In the follow-up RFC [1], we refined our plan and tried to emphasise
> that our plan is to:
>   "Make libclangDriver independent of Clang".
> Richard's reply to that RFC [2]: "(...) this seems like a good direction
> to me". Hopefully Richard (CC'ed) can confirm that we didn't
> misinterpret that :)
>
> I don't think that Flang should depend on Clang. Also, that's something
> that was explicitly requested in one of our early patches for the new
> Flang driver [4]. And indeed, we committed ourselves to removing this
> dependency on flang-dev [5]. As for cfe-dev, in both [1] and [3] we
> proposed to move any shared code (in particular, libClangDriver) out of
> Clang. So again, no dependency on Clang.
>
> AFAIK, there are no plans to share the preprocessor and hence no
> discussion in that direction is happening. Obviously I can't speak for
> everyone on flang-dev, so I CC'ed that mailing list for better visibility.
>
>
> Thank you for your feedback!
>
> -Andrzej
>
>
> [1] http://lists.llvm.org/pipermail/cfe-dev/2020-July/066393.html
> [2] http://lists.llvm.org/pipermail/cfe-dev/2020-August/066488.html
> [3] http://lists.llvm.org/pipermail/llvm-dev/2020-June/141994.html
> [4] https://reviews.llvm.org/D79092
> [5] http://lists.llvm.org/pipermail/flang-dev/2020-July/000470.html
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