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Maintained by the
llvm-admin team
2019 European LLVM developers' meeting


The LLVM developers' meeting is a bi-annual 2 day gathering of the entire LLVM Project community. The conference is organized by the LLVM Foundation and many volunteers within the LLVM community. Developers and users of LLVM, Clang, and related subprojects will enjoy attending interesting talks, impromptu discussions, and networking with the many members of our community. Whether you are a new to the LLVM project or a long time member, there is something for each attendee.

What can you can expect at an LLVM developers' meeting?

Technical Talks
These 30 minute talks cover all topics from core infrastructure talks, to project's using LLVM's infrastructure. Attendees will take away technical information that could be pertinent to their project or general interest.
Tutorials are 60 minute sessions that dive down deep into a technical topic. Expect in depth examples and explanations.
Lightning Talks
These are fast 5 minute talks that give you a taste of a project or topic. Attendees will hear a wide range of topics and probably leave wanting to learn more.
Birds of a Feather (BoF)
BoF sessions are more formal guided discussions about a specific topic. The presenter typically has slides to guide the discussion. The audience is given the opportunity to participate in the discussion.
Student Research Competition
Students present their research using LLVM or related subproject. These are usually 25 minute technical presentations with Q&A. The audience will vote at the end for the winning presentation. Students also present their research during the poster session.
Poster Session
An hour long poster session where selected posted are on display.
Round Table Discussions
Informal and impromptu discussions on a specific topic. During the conference there are set time slots where groups can organize to discuss a problem or topic.
Evening Reception
After a full day if technical talks and discussions, join your fellow attendees for an evening reception to continue the conversation and meet even more attendees.

What types of people attend?

  • Active developers of projects in the LLVM Umbrella (LLVM core, Clang, LLDB, libc++, compiler_rt, klee, lld, etc).
  • Anyone interested in using these as part of another project.
  • Students and Researchers
  • Compiler, programming language, and runtime enthusiasts.
  • Those interested in using compiler and toolchain technology in novel and interesting ways.

The LLVM developers' meetings strive to be the best conference to meet other LLVM developers and users.

For future announcements or questions: please sign up for the LLVM developers' meeting list.

Women in Compilers and Tools Workshop

Registration is now closed.

After several Women in Compiler's and Tools events that generated amazing discussions and ideas, it is now time to turn the focus on action and change. One such area that has been consistently brought up in conversations between WiCT attendees, LLVM Developers, and students is how the LLVM project is viewed from a newcomer's perspective. While our community is open and inviting, our documentation, tutorials, and web presence is challenging for a newcomer to navigate and get involved. Changing this is critical to the long term success of the LLVM project as it is not only a barrier for more women to learn about LLVM and compilers, but a barrier to everyone. The focus of this workshop will be on documentation and removing barriers for newcomers.

If you are interested in helping make the LLVM Project more approachable for newcomers and increasing diversity, then please attend this workshop!


The conference program may be found here:

We recommend you save this as a link on your mobile device for easy access.

There is a separate schedule for the Women in Compilers and Tools Workshop that is outlined in the EventBrite page.

Keynote Technical talks Tutorials Student Research Competition Lightning talks BoFs Posters

Registration has closed. link.

Note that we encourage people to register early, as this helps us organise this event and plan it according to the attendence. Registrations done before February 26th, 2019 will benefit from an early bird price. Registration will be closed after March 27, 2019.

Round Tables

To add a round table topic to the schedule, please use this form and we will update the online schedule. For your convenience, an overview is also posted here:

Time SlotTopic
April 8, 11:40-12:05LLVM/Clang & OpenMP
April 8, 11:40-12:05Spectre - Mitigations and APIs in LLVM
April 8, 2:00-2:30Index-While-Building & clangd
April 8, 2:00-2:30Polly Labs speaks to MLIR
April 8, 2:35-3:05Scalable Vector Next Steps
April 8, 2:35-3:05GPU in LLVM: Thread groups, warps, wavefronts, and convergence
April 8, 3:10-3:40Clang Static Analyzer
April 8, 4:15-4:45IPO - Interprocedural Optimizations
April 8, 4:15-4:45Integrating new LLVM Tutorials into the documentation
Apri; 8, 4:50-5:20Meetup organizers
April 8, 4:50-5:20Building LLVM with GN
April 8, 5:25-5:55Variable names standard - hopes & fears
April 9, 11:25-11:55Bazel for LLVM and Clang builds
April 9, 11:25-11:55Flang F18 Fortran Front End Project
April 9, 11:25-11:55JIT
April 9, 12:35-1:05-Og (optimized but debuggable) level
April 9, 2:00-2:30IDEs, Indexing, Refactoring and Modules
April 9, 2:00-2:30LLVM Binutils
April 9, 2:00-2:30Restrict
April 9, 2:35-3:0516-bit bytes in llvm
April 9, 2:35-3:05Future Refactoring with AST Matchers
Travel Grants for Students

The LLVM Foundation sponsors student travel to attend the LLVM developers' meeting. Travel grants cover some or all of travel related expenses. This program is open to full time undergraduate and graduate students.

The deadline for applications was January 25th, so they are now closed.


The block we had reserved at Le Plaza Brussels is now sold out. We suggest the following hotels nearby:

Regarding parking at the conference, Le Plaza has available parking space for hotel guests, at a € 29 / 24h rate (including Valet service). For non-hotel guests, there are 2 public garages less than 3 min walking distance from Le Plaza:

  • QPark Brussels centre : Dambordstraat 26, 1000 Brussels. Open Monday till Sunday, entry from 07h00 till 23h00, exit 24/7, daily rate €20.
  • Indigo Parking Manhattan : Kruisvaartenstraat 19, 1210 Brussels. Open Monday till Sunday, entry/exit 24/7, daily rate €16.50

Code of Conduct

The LLVM Foundation is dedicated to providing an inclusive and safe experience for everyone. We do not tolerate harassment of participants in any form. By registering for this event, we expect you to have read and agree to the LLVM Code of Conduct.


To contact the organizers, email

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Corporate Supporters

Thank you to our sponsors!