A high-level build system based on llbuild, used by Xcode, Swift Playground, and the Swift Package Manager

A Swift library for asynchronous DNS requests, wrapping c-ares with Swift-friendly APIs and data structures.

Low-level system calls and types for Swift

Swift compiler driver reimplementation in Swift

A resource for common coding structures in MIPS.

Verilog to Routing -- Open Source CAD Flow for FPGA Research

Project moved to: https://github.com/llvm/llvm-project

An open-source C++ library developed and used at Facebook.