The European LLVM Developers' Meeting is a bi-annual 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 sub-projects 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 types of people attend?

  • Active developers of projects in the LLVM Umbrella(LLVM core, Clang, LLDB, libc++, compiler_rt, MLIR, 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 European LLVM Developers’ meeting will be a 2 day event, featuring talks, tutorials, and panel discussion on topics relevant to the LLVM Project. There will be an evening reception on May 10th.

For future announcements or questions: Please visit the LLVM Discourse forums.


Park Plaza London Riverbank
18 Albert Embankment
London SE1 7TJ

All sessions will be held in the Ballroom on Conference Level -2.

Book your room
A booking link and code has been provided for attendees to book discounted rates through the Park Plaza London Riverbank online booking system. These rates will be depending on best available rates. Click below to begin a hotel reservation and enter promotional code: LLVM


Attendees will be required to show proof of vaccination at the conference, or proof of COVID-19 negative test taken no more than 3 days before the conference. 

Masks will be required. 

Click here for our full COVID-19 requirements.

Highlighted speakers on topics with wide appeal for the LLVM and compiler community.

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.

Slightly longer than a lightning talk, these 10 minute talks are a quick dive into a topic. 

15 minute technical presentations with Q&A.  Students present their research using LLVM or related subproject. 

Opportunities to meet other LLVM Developers in a social setting.  

20 minute talks cover all topics from core infrastructure talks, to project’s using LLVM’s infrastructure. Attendees will have an opportunity to ask Q&A and take away technical information that could be pertinent to their project or general interest.

Informal discussions on a specific topic. During the conference there are set time slots where groups can organize to discuss a problem or topic.

45 minute dive deep into a technical topic. Expect in depth examples and explanations.


The LLVM Foundation is dedicated to providing an inclusive and safe experience for everyone. We do not tolerate harassment of participants in any form. All attendees are expected to read and abide by the LLVM Code of Conduct. If you have questions or need to reach the response team during the event, please email conduct@llvm.org or contact onsite staff..


The LLVM Foundation is a nonprofit that supports the LLVM Project. We support the LLVM community by helping it to grow, foster community interactions, work to keep LLVM development productive through infrastructure, and work to ensure the long term health of the LLVM Project.