[Flang] Fortran / OpenMP conformance page

[h-vetinari]

I think that flang should have a status page vis-à-vis its implementation status of the various Fortran Standards.

For comparison, the following pages fulfill similar roles in LLVM (often linked with in-progress PRs) resp. for gfortran:

• clang has a page for C & C++ standards
• libcxx has various pages for the C++ standards
• there's an OpenMP status page (this might need to be shared or duplicated between clang & flang?)
• gfortran also has such a page

I'm aware of the OpenMP status sheet and the Community Call Notes - I don't think they are an adequate replacement for a more stream-lined public status page.

PS. I already asked this a long time ago, hope it's now more feasible. ;-)

[llvmbot]

@llvm/issue-subscribers-openmp

[kiranchandramohan]

You can go ahead and create a page with information from the OpenMP spreadsheet.

For Fortran, you can get the details from
https://docs.google.com/spreadsheets/d/1ctIPb4ADTuLDgwKzZNCThzNnbOcwWG5tA6UTuA9tO_c/edit#gid=1823771597
https://docs.google.com/spreadsheets/d/1yXo4A8fnvlsnOSPjuPkeRacu-85lxXBigL-3IIU68wY/edit#gid=0
Flang features to be implemented

[ceseo]

Related thread on Discourse: https://discourse.llvm.org/t/rfc-fortran-language-feature-documentation/76332/

[h-vetinari]

The section for OpenMP 6.0 on https://clang.llvm.org/docs/OpenMPSupport.html now distinguishes support for C/C++ and Fortran per feature. This would be an obvious place to do the same for OpenMP 5.x features (and possibly <5.0 as well).

[kiranchandramohan]

The following PRs cover the Fortran and OpenMP standard/specification conformance in Flang.
OpenMP : #132707
Fortran : #132195

[h-vetinari]

Thank you very much, that's great!