https://github.com/i3abghany/rustyc

A C compiler in Rust and LLVM.
https://github.com/i3abghany/rustyc

c compiler llvm x86-64

Last synced: 7 months ago
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A C compiler in Rust and LLVM.

• Host: GitHub
• URL: https://github.com/i3abghany/rustyc
• Owner: i3abghany
• Created: 2023-09-02T23:55:31.000Z (about 2 years ago)
• Default Branch: main
• Last Pushed: 2023-11-02T23:48:46.000Z (almost 2 years ago)
• Last Synced: 2025-01-31T23:51:51.073Z (8 months ago)
• Topics: c, compiler, llvm, x86-64
• Language: Rust
• Homepage:
• Size: 93.8 KB
• Stars: 0
• Watchers: 1
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
# RustyC

RustyC is a compiler written in Rust that supports a subset of the 

C programming language. It is capable of producing x86_64 native

assembly and LLVM IR.

## Example Usage

An example of what RustyC can compile is shown below.

```c

// fib.c

int fib_recursive(int n) {

    if (n <= 1) return n;

    return fib_recursive(n - 1) + fib_recursive(n - 2);

}

int fib_iterative(int n) {

    int a = 0;

    int b = 1;

    for (int i = 0; i < n; i = i + 1) {

        int c = a;

        a = b;

        b = c + b;

    }

    return a;

}

int main() {

    return !(fib_recursive(10) == fib_iterative(10));

}

```

```bash

$ cargo b --release

$ ./target/release/rustyc --help

Usage: rustyc.exe [OPTIONS] [INPUT_SOURCE_FILES]...

Arguments:

  [INPUT_SOURCE_FILES]...

Options:

  -l, --emit-llvm

  -c, --emit-object

  -s, --emit-asm

  -o, --exe-filename 

  -h, --help

$ ./target/release/rustyc fib.c -o fib

$ ./fib; echo $?

0

```

## Pre-requisites

- Rust 1.70.0 or later

- LLVM 15.0.x or later