My expertise ranges from HTML/JavaScript to hard-core systems programming. I worked on search UI before. I'm now working on the LLVM project full-time.

Projects

• lld, the LLVM linker – A high-performance drop-in replacement that runs 2x or more faster than GNU gold or Microsoft Visual Studio linker. It is production-quality and used by various operating systems including FreeBSD as /usr/bin/ld. I'm the original designer, implementer and the owner of the project.
• 8cc C compiler – My hobby compiler. It is a small but full-fledged compiler that is intended to support all C11 language features. It is powerful enough to host itself on Linux/x86-64.
• Gauche Scheme – Implemented various features, including Perl5-compatible regexp engine.
• The Go Programming Language – Implemented various performance optimizations and fixed bugs as a committer. (List of patches)
• MiniLisp – A Lisp implementation written in less than 1k lines of C code, which supports variety of features: global variables, lexcally-scoped local variables with closures, macros, user-defined functions and copying garbage collector.

Essays

• How I wrote a self-hosting C compiler in 40 days
• Software compatibility and our own "User-Agent" problem
• My story on “worse is better”

Miscellaneous

Last updated: December 2018