# Compiler Lecture Series

These are videos where various experts explain different parts of the compiler:

## Compiler architecture
- [September 2022: Bootstrapping: The once and future compiler](https://www.youtube.com/watch?v=oUIjG-y4zaA)
- [November 2024: Rust compiler overview](https://www.youtube.com/watch?v=8E7I0EGRXo0)
- [June 2025: (Almost) everything you should know about the compiler frontend](https://www.youtube.com/watch?v=aFG5KtpEynk)
- [October 2025: Stable MIR: Fork the Rust compiler pipeline and go beyond](https://www.youtube.com/watch?v=lfi2pCOaGGk)
- [November 2025: How Rust compiles](https://www.youtube.com/watch?v=G1g6Me1FHmE)

## Contributing and compiler tooling
- [January 2019: Tom Tromey discusses debugging support in rustc](https://www.youtube.com/watch?v=elBxMRSNYr4)
- [May 2021: Peeking at compiler-internal data (for fun and profit)](https://www.youtube.com/watch?v=SKmd5A-1cSE)
- [September 2021: Hacking rustc: Contributing to the compiler](https://www.youtube.com/watch?v=9H9SO2u6Q20)
- [October 2022: Rustc Explore](https://www.youtube.com/playlist?list=PL85XCvVPmGQj3-MujOJ0jcoSqQ6Yi6Rkk)
- [September 2025: How doctests work](https://www.youtube.com/watch?v=NmgNi6kFXZI)
- [June 2026: Compilers are just programs: Fixing a bug in the Rust compiler](https://www.youtube.com/watch?v=osTwwllrgeA)
- [June 2026: Out-of-tree access to compiler state](https://www.youtube.com/watch?v=ExxxtADP-t8)

## Performance and compiler testing
- [June 2019: Responsive compilers - Nicholas Matsakis - PLISS 2019](https://www.youtube.com/watch?v=N6b44kMS6OM)
- [June 2019: Things I Learned (TIL) - Nicholas Matsakis - PLISS 2019](https://www.youtube.com/watch?v=LIYkT3p5gTs)
- [November 2024: The current state and future of Rust compiler performance](https://www.youtube.com/watch?v=Lye2xeJ3O5w)
- [March 2025: Rustlantis: Randomized differential testing of the Rust compiler](https://www.youtube.com/watch?v=0jqI8M1xzj4)
- [June 2026: Precise, consistent, and reliable code coverage](https://www.youtube.com/watch?v=P9lmSc4oLFs)
- [June 2026: Rethinking the incremental system in between compilation types](https://www.youtube.com/watch?v=aRwK5dbJy3Y)

## Rust Analyzer
- [January 2019: How Salsa Works](https://www.youtube.com/watch?v=_muY4HjSqVw)
- [January 2019: Salsa In More Depth](https://www.youtube.com/watch?v=i_IhACacPRY)
- [January 2019: Rust analyzer guide](https://www.youtube.com/watch?v=ANKBNiSWyfc)
- [February 2019: Rust analyzer syntax trees](https://www.youtube.com/watch?v=DGAuLWdCCAI)
- [March 2019: rust-analyzer type-checker overview by flodiebold](https://www.youtube.com/watch?v=Lmp3P9WNL8o)
- [March 2019: RLS 2.0, Salsa, and Name Resolution](https://www.youtube.com/watch?v=Xr-rBqLr-G4)

## Type System
- [July 2015: Felix Klock - Rust: A type system you didn't know you wanted - Curry On](https://www.youtube.com/watch?v=Q7lQCgnNWU0)
- [November 2016: Felix Klock - Subtyping in Rust and Clarke's Third Law](https://www.youtube.com/watch?v=fI4RG_uq-WU)
- [February 2019: Universes and Lifetimes](https://www.youtube.com/watch?v=iV1Z0xYXkck)
- [April 2019: Representing types in rustc](https://www.youtube.com/watch?v=c01TsOsr3-c)
- [March 2019: RFC #2229 Disjoint Field Capture plan](https://www.youtube.com/watch?v=UTXOptVMuIc)
- [December 2025: `-Znext-solver`: What, why, and when](https://www.youtube.com/watch?v=HUVjZyANCjM)

## Closures
- [October 2018: closures and upvar capture](https://www.youtube.com/watch?v=fMopdkn5-Xw)
- [October 2018: blitzerr closure upvar tys](https://www.youtube.com/watch?v=pLmVhSB-z4s)
- [January 2019: Convert Closure Upvar Representation to Tuples with blitzerr](https://www.youtube.com/watch?v=2QCuNtISoYc)

## Chalk
- [July 2018: Coherence in Chalk by Sunjay Varma - Bay Area Rust Meetup](https://www.youtube.com/watch?v=rZqS4bLPL24)
- [March 2019: rustc-chalk integration overview](https://www.youtube.com/watch?v=MBWtbDifPeU)
- [April 2019: How the chalk-engine crate works](https://www.youtube.com/watch?v=Ny2928cGDoM)
- [May 2019: How the chalk-engine crate works 2](https://www.youtube.com/watch?v=hmV66tB79LM)

## Polonius
- [March 2019: Polonius-rustc walkthrough](https://www.youtube.com/watch?v=i5KdU0ieb_A)
- [May 2019: Polonius WG: Initialization and move tracking](https://www.youtube.com/watch?v=ilv9V-328HI)
- [March 2025: The first six years in the development of Polonius](https://www.youtube.com/watch?v=ThvFHval7Gk)

## Miri
- [March 2019: oli-obk on miri and constant evaluation](https://www.youtube.com/watch?v=5Pm2C1YXrvM)
- [June 2026: FFI in Miri at 8,000 segfaults per second](https://www.youtube.com/watch?v=9X-ngiKo_Y0)

## Async
- [February 2019: async-await implementation plans](https://www.youtube.com/watch?v=xe2_whJWBC0)
- [April 2019: async-await region inferencer](https://www.youtube.com/watch?v=hlOxfkUDLPQ)

## Code Generation
- [January 2019: Cranelift](https://www.youtube.com/watch?v=9OIA7DTFQWU)
- [December 2024: Rust unlinked: A journey through rustc, linkers, symbols, and static libraries](https://www.youtube.com/watch?v=I0JvqbRCI2U)
- [December 2024: LLVM Developers' Meeting - Rust ❤️ LLVM](https://www.youtube.com/watch?v=Kqz-umsAnk8)