Cuik (pronounced 'Quick')

warning: unfinished and buggy... also it doesn't compile on Linux or OSX currently, i'll get around to it

The plan is a modern C11 compiler which can mostly work with Clang, GCC, and MSVC while also introducing some new ideas.

Discord?

Why write a C compiler?

• To improve the compile times on debug builds without sacrificing features like I would with TCC.
• To test out my upcoming compiler backend, TB.
• To add some extensions to improve the workflow of C programmers.
• Because I can.

How to install?

Mac & Linux aren't ready yet but i'll be moving forward to those platforms in the upcoming months

You will need Git, Python, a C compiler (not msvc but gcc and clang should work fine) and on windows you'll need MSVC (i use link.exe for now... sorry, i'll remove the linker dependency soon)

git clone https://github.com/RealNeGate/Cuik
cd Cuik/main
python build.py

How am I doing?

mostly aight, thanks for asking.

What are some cool new things?

One of my favorite new features are the live compiler (essentially an offline Godbolt but within a terminal) and the out of order declarations.

What architectures will you support?

I'll be starting with x64 but I plan on having Aarch64 support soon enough, it's mostly a matter of user-demand what other platforms I add though I probably won't be supporting anything with a segmented address space because I don't want to implement it.

What OSes will you support?

Ideally the essentials like Windows, Linux and MacOS but currently MacOS isn't setup and Linux has basic support (no live compiler)

Will it have optimizations?

It will eventually have a smart but non-aggressive optimizer but that's still a work in progress

What C extensions will you have?

I'll be supporting all the normal extensions such as:

• pragma once
• builtin bitmath (popcount, ffs, clz, ctz, etc)
• __builtin_trap, __builtin_expect
• x86 SIMD intrinsics
• typeof
• case ranges
• computed goto

And some possibly novel extensions such as:

• Out of order functions
• Tagged unions

What's left?

It can currently compile programs using the subset of C it currently supports but it's still missing some essential details before it compiles any basic C program such as:

• More tests
• Bug fixes
• Self hosting
• Thread local
• Atomics (halfway there)
• MSVC extensions
• GNU extensions
• Proper Mac/Linux support

What's in progress right now?

I'm in the cpp-optimize branch doing some refactors, i redid some details of the preprocessor to improve speed, then i started redoing the Cuik parser API and fixing bugs such as the use of abort in the parsing (for a library this should never happen, it should error recover or return to the user)

File structure

In case you care to look around here's what the folders mean:

# this is where the main driver goes (it does "mostly" normal CC command line interactions)
main/

# Actual library (can be used separate of the main driver)
libCuik/

# not [ciabatta](https://github.com/flysand7/ciabatta) but the freestanding includes like stddef.h along with some helpers
crt/

# random crap
logo/
tests/