[flang-dev] RFC: `fsyntax-only` as an alias for `fparse-only` in `f18`

[Richard Barton via flang-dev]

+1 from me also. Seems like an obvious good thing to ease the transition from old driver to new and the new spelling was already agreed in your previous RFC.

> -----Original Message-----
> From: flang-dev <flang-dev-bounces at lists.llvm.org> On Behalf Of Johannes
> Doerfert via flang-dev
> Sent: 1 February, 2021 16:04
> To: Andrzej Warzynski <Andrzej.Warzynski at arm.com>
> Cc: flang-dev at lists.llvm.org
> Subject: Re: [flang-dev] RFC: `fsyntax-only` as an alias for `fparse-only` in `f18`
> 
> +1 for -fsyntax-only, consistency with Clang is worth it.
> 
> An alias for a while seems reasonable, eventually we phase alternatives out.
> 
> ~ Johannes
> 
> 
> On 2/1/21 9:17 AM, Andrzej Warzynski via flang-dev wrote:
> > Hi all,
> >
> > Recently we've ported the preprocessor tests to use the new Flang
> > driver[1]. Soon we will be ready to port OpenMP and OpenACC tests. As
> > the new driver and `f18` use slightly different spellings for options
> > [2], we will require some workarounds. In this RFC I'd like to ask you
> > for your opinion on using `-fparse-only` and `-fsyntax-only`.
> >
> > In [3] we introduce `-fsyntax-only` as an alias for `-fparse-only` in
> > `f18`. This is sufficient for us to start porting more tests to the
> > new Flang driver very soon. Also, in [3] we port all tests to use
> > `-fsyntax-only` instead of `-fparse-only`. Otherwise, `-fparse-only`
> > remains supported by `f18` and you can continue to use it.
> >
> > Does the approach from [3] work for you or would you prefer a
> > different solution? I'm happy to propose some alternatives if there's
> > interest.
> >
> > Thank you for reading!
> >
> > -Andrzej
> >
> >
> > [1] https://reviews.llvm.org/D94805
> > [2] https://lists.llvm.org/pipermail/flang-dev/2020-November/000588.html
> > [3] https://reviews.llvm.org/D95784
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