Flang Biweekly Sync - Notes from the March 04, 2020 call

Subprojects Flang
#1

Flang team,

Here are the notes from the March 4th, 2020 Flang biweekly call.

The next Flang Technical Community call is scheduled for Monday, March 9th, 8:30 AM Pacific Time. We will probably continue discussions about the status of the flang upload to the LLVM monorepo. Craig Rasmussen will also give a brief overview of the source transformation work that they are doing, and solicit feedback on that.

The next Flang biweekly call will be Wednesday, March 18th, 2020 at 8:30 AM Pacific Time.

Logistics information for these calls is at the end of this email.

Thank you.

Gary Klimowicz

Agenda

  • Fortran Standards Meeting
  • Euro LLVM April 6-7, Paris, France
  • Continue discussing merging process and status
  • F18 development update
  • Flang development update

Highlights

  • Fortran Standards Meeting February 24-28th

  • Relatively fewer papers written and reviewed than in past meetings.

  • Two proposals from https://github.com/j3-fortran/fortran_proposals/issues were reviewed in Plenary, which provided good feedback. This is a new mechanism that is likely to be repeated in future meetings.

  • In general, the GitHub issues list is viewed positively as a way of getting input from the community and providing J3 status back. (It takes a lot of effort from volunteers like Ondrej Certik and Zach Jibben.)

  • Euro LLVM

  • Let us know about the talks and meetings and we will publicize them here.

  • See the details below for the list of talks.

  • Flang Community Technical Biweekly Call

  • The next call is scheduled for Monday, March 9th.

  • Status update on the process for uploading Flang to the LLVM monorepo.

  • Using flang in a source-to-source rewriting scheme (Craig Rasmussen and Kate Rasmussen).

  • New Flang update

  • We continue to work through items regarding Flang’s readiness to be merged into the LLVM monorepo. This was the bulk of the topic of today’s call.

  • Pat McCormick’s CMake change needs to be merged.

  • We are working through more feedback on changes from clang-format settings. Coming to consensus on this is very important.

  • Pre-merge task status can be found here: https://github.com/orgs/flang-compiler/projects/8.

  • We are scheduled to do the merge around March 16th.

  • See the detailed notes below for other Flang development updates.

  • Original Flang Dev news and updates

  • We will be providing access for additional committers to the project. There was discussion today around this process. Arm has submitted a list of additional committers for current Flang.

  • Each team will continue to test their proposed changes internally using their internal test infrastructure.

  • This should help with the queue of pull requests that are outstanding for Flang.

  • NVIDIA will continue to push fixes for GitHub issues to flang.

  • The github.com/flang-compiler/flang wiki has been updated to remove references to the contributor license agreements.

Where we can use your help

  • Topics for the biweekly calls and technical community calls.
  • Let us know if you have presentations or meetings relevant to the Flang community. We will publicize these in these notes.

**Details (**Updates below are in bold)