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Rill Programming Language

This repository is heavely under development...

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Rill-lang is a programming language which is designed for systems programming.

This repository contains the implementation of Rill-lang.

Supported targets

  • x86_64-unknown-linux-gnu
  • wasm32-wasi

How to use

e.g. rillc compile test/pass/hello_world.rill generates a.out by default.

Please execute rill --help to check more options!

How to build

Supported Environments

  • Arch Linux (host: x86_64)
  • Ubuntu 20.04 (host: x86_64)


  • OCaml (>= 4.09.0)
  • OPAM (>= 2.1.0~beta2)
    • dune (>= 2.5)
  • CMake (>= 3.5.1)
  • LLVM (>= 11.0.0)
  • GCC (>= 10)


Clone files

$ git clone
$ cd rill

Setup rillc (compiler only) environments

See rillc/README.

Generate project files by using CMake

rill$ cmake -B build

The project will be created under the build directory, which can be named any way you like.

Build a toolchain

rill$ cmake --build build


rill$ cd build
build$ make

Run tests

rill$ cd build
build$ make CTEST_OUTPUT_ON_FAILURE=1 test

Install a toolchain

cmake --install build --prefix /usr/local

A toolchain will be installed under the specified prefix.


Boost License Version 1.0