Have You Tried Recompiling It?

Hands-on tutorials on building programming languages: lexers, parsers, LLVM and MLIR, one working example at a time.

Pyxc · LLVM

Build Your First Programming Language with LLVM

Build Pyxc, a small procedural language, from lexer to JIT. Along the way you add conditionals, loops, user-defined operators, a command-line JIT and debug info.

45 chapters
C++
Lexer · Parser · JIT

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Kaleidoscope · MLIR

My First Language Frontend with MLIR

An MLIR take on LLVM's classic Kaleidoscope tutorial: parse a small language, lower it through a dialect of your own, and run it.

11 chapters
C++
Dialects · TableGen

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TableGen · LLVM

TableGen: A Tutorial

Learn TableGen at a leisurely pace: records, classes, templates, multiclasses and bang operators, with plenty of code to run along the way.

17 short lessons
Records · Classes · Operators

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