inkwell-ruscal

A test repository to support native compile for Ruscal language

It does not reference Ruscal language itself (yet). It works on a subset of the full language.

How to run

1. Install Rust.
2. Install LLVM 10. If you are on Ubuntu 20.04, run sudo apt update && sudo apt install llvm-10-dev
3. Run cargo r <scripts/fn_call.rscl or other example scripts ending .rscl

Note that specific LLVM version shouldn't matter. If you have a different version, just change the inkwell line in Cargo.toml.

Speed comparison

As a reference, we compare the performance of each execution model with the same output: mandel.rscl. Note that AST interpreter and bytecode are implemented in Ruscal.

	AST interpreter	Bytecode	LLVM IR	C	Rustc
Time [s]	0.320	0.105	0.016	0.004	0.006

Plot:

The output:

Reference implementations in C and Rust

There are reference implementations of Mandelbrot set rendering in C and Rust for comparing performance which are named expectedly:

• mandel.c
• mandel.rs

You can build reference implementation of Mandelbrot set renderer in C with

gcc -O3 mandel.c -o mandel

and for Rust

rustc -O mandel.rs -o mandel-rs