compiler-team

A home for compiler team planning documents, meeting minutes, and other such things. If you're interested in learning about how rustc works -- as well as advice on building the compiler, preparing a PR, and other similar topics -- check out the rustc-guide.

Quick facts

• Where to find us: We are primarily present on Zulip, though some of us also monitor Discord.
• Want to attend a meeting or follow along? See the "meeting calendar" section below.
• Looking for technical information about how the compiler works? Check out the rustc-guide.

Meeting Calendar

Unless otherwise noted, all our meetings are open to the public and held on Zulip. There are two main team-wide meetings that we hold on a regular basis. There are also a variety of working group meetings. The team-wide meetings are as follows:

• Triage meeting: We have a weekly triage meeting to discuss and track regressions and urgent changes. This meeting is held on Zulip and open to anyone.
• Steering meeting: We have a steering meeting every three weeks to track and plan our larger goals. This meeting is held on Zulip and open to anyone.

Our meeting calendar is publicly available from the following links:

• Web Link -- use this to view the calendar or to import into Google Calendar
• ICS file, for use outside from google calendar -- use this if you want to import into different calendar software

Working Groups

Much of the ongoing work and initiatives from the compiler team are performed by working groups. Working groups are a great way for new contributors to get involved as they provide a stream of tasks all focused around one area and have designated channels for help and advice. All of the active working groups are listed below:

Name	Status	Short Description	Zulip Stream
Async-await Implementation	Active	Implementing async-await	#t-compiler/wg-async-await
LLVM	Incubating	Working with LLVM upstream to represent Rust in its development	#t-compiler/wg-llvm
Self-Profile	Active	Improving the -Z self-profile feature	#t-compiler/wg-self-profile
RFC 2229	Active	Make a closure capture individual fields of the variable rather than the entire composite variable	#t-compiler/wg-rfc-2229
RLS 2.0	Active	Experimenting with a new compiler architecture tailored for IDEs	#t-compiler/wg-rls2.0
Meta	Active	How compiler team organizes itself	#t-compiler/wg-meta
Non-Lexical Lifetimes (NLL)	Winding down	Implementing non-lexical lifetimes	#t-compiler/wg-nll
Traits	Active	Improving the trait-system design + implementation	#t-compiler/wg-traits
Parallel-rustc	Active	Making parallel compilation the default for rustc	#t-compiler/wg-parallel-rustc
Profile-Guided Optimization	Active	Implementing profile-guided optimization for rustc	#t-compiler/wg-profile-guided-optimization
MIR Optimizations	Active	Write MIR optimizations and refactor the MIR to be more optimizable.	#t-compiler/wg-mir-opt

Expert Map

If you're interested in figuring out who can answer questions about a particular part of the compiler, or you'd just like to know who works on what, check out our experts directory. It contains a listing of the various parts of the compiler and a list of people who are experts on each one.

Procedures

The procedures directory contains descriptions of various rustc procedures.

Code of Conduct and licensing

All interactions on this repository (whether on issues, PRs, or elsewhere) are governed by the Rust Code of Conduct.

Further, all content on this repository is subject to the standard Rust licensing.