Introduction to Compilers and Language Design (2021)
AlexeyBrin
292 points
48 comments
July 05, 2026
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Discussion Highlights (10 comments)
madrajib
Love such topics and articles in midst of AI topics/noise.
jdw64
Sometimes I see people who design languages and build compilers, and I find them truly amazing. I once tried making a language myself because I was curious, but it was so difficult that I just settled for a simple C backend. The people contributing to LLVM probably know everything down to assembly generation. they're truly incredible.
shuyang
Took Dr. Thain's compilers class in college! It was the best. He's an excellent instructor, and the course project made me build a working C-style compiler step by step. I think the sample project here is pretty much the project we did; highly recommend following through the entire thing!
attila-lendvai
it wanders within a tight circle around C and its idiosyncrasies.
allankoech
Good read. Impressive how ot sharpens past knowledge with great examples.
conartist6
Just scannning the table of contents and I don't see any of the major topics of language design. It seems to be more like just "intro to compilers"
richard_chase
According to the introduction, the dragon book is at an advanced graduate level?
dang
Related: Introduction to Compilers and Language Design (2021) - https://news.ycombinator.com/item?id=31388741 - May 2022 (68 comments) Introduction to Compilers and Language Design - https://news.ycombinator.com/item?id=19728749 - April 2019 (1 comment)
userbinator
I don't know if any courses have referenced it yet, but I think C4 ( https://news.ycombinator.com/item?id=8558822 ) and C4x86 ( https://news.ycombinator.com/item?id=8746054 ) would make for a great semester's worth of study; it's a tiny, self-compiling C-subset compiler that would probably make a good base for further exercises in extending it.
Disla_chunga
This was a great read for me. I'm working on a DSL compiler for 3D printing (after my semester class on compilers) and it's a good reminder of how much there is to learn. It's given me great material on error handling suggestions and constant folding (although mine is not at such an advanced level). I read Chapter 12 on optimization, and it's given me a lot of good ideas in terms of tree rewriting and reducing instruction count. I implemented paging (after much research) but I still deal with crashes partly because the output is still built as a giant string in memory for smaller outputs, and partly because the paging threshold sometimes doesn't trigger early enough. Perhaps there are deeper things for me to optimize and research on. I'm keeping this read under my belt!