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

[Johannes Doerfert via flang-dev]

+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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