https://github.com/coord-e/ccc

optimizing compiler for a subset of C language
https://github.com/coord-e/ccc

c compiler optimization

Last synced: 9 days ago
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optimizing compiler for a subset of C language

• Host: GitHub
• URL: https://github.com/coord-e/ccc
• Owner: coord-e
• License: mit
• Created: 2019-06-28T03:10:44.000Z (over 5 years ago)
• Default Branch: develop
• Last Pushed: 2019-10-07T13:27:18.000Z (about 5 years ago)
• Last Synced: 2024-10-11T05:10:46.328Z (26 days ago)
• Topics: c, compiler, optimization
• Language: C
• Homepage:
• Size: 736 KB
• Stars: 34
• Watchers: 2
• Forks: 2
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# ccc

[![Build Status](https://travis-ci.com/coord-e/ccc.svg?branch=develop)](https://travis-ci.com/coord-e/ccc)

a work-in-progress compiler for a tiny subset of C language.

ccc is intended to be an optimizing compiler that produces code which is faster than gcc -O1 does, and compiles faster than that.

## Roadmap

- [ ] support C11 features

  - [x] arithmetic operations

  - [x] pointer arithmetic

  - [x] arrays

  - [x] type checker

    - [ ] support type qualifiers

  - [x] implicit type conversions

  - [ ] initializers

    - [x] scalar

    - [x] array

    - [ ] struct

    - [ ] designated initializers

  - [ ] a copy of struct

    - [x] local assignment

    - [ ] argument

    - [ ] return value

  - [ ] preprocessor

  - [ ] self-hosting

  - [ ] complex declarators

  - [ ] alignment specifiers

  - [ ] float-point values

- [ ] optimizations

  - [x] linear scan register allocation

  - [x] naive mem2reg

  - [x] constant folding

  - [x] copy propagation

  - [x] dead code elimination

  - [ ] tail call optimization

  - [ ] loop unwinding

- [ ] misc

  - [ ] improved error messages

  - [ ] better support of debuggers

  - [ ] support targets other than x86_64

## Development

To build ccc, run:

```shell

make

```

You'll see a compiled binary under `./build/`.

You can add `DEBUG=0` to get an optimized build of `ccc`.

To run tests, use `test` target:

```shell

make test

```