This repo contains a lot of libraries and projects related to compilers.
It's based on my readings of Engineering a Compiler, 2nd Edition.
Everything is written in Rust.
My goal is to write multiple front-end, middle-end, and back-end representations for different languages and architectures.
These representations will be a lot simpler and with much less features than for a true compiler, as I only do this to learn compilers.

Requirements

• Rust (Tested with rustc 1.40.0)
• LLVM (Tested with v9.0.0) (some compilers generate LLVM IR).

Tested on Ubuntu 18.04

Front-End languages

lancalc

A math expression with int, float, 4 operators and parentheses.
Performs evaluation with or without building an AST.

Projects:

• ./app/mini-calc-eval.

LExpr (lanexpr)

Language with only int32 type, where everything is a value. Can do functions, variables, scopes, if, loops.

Projects:

• ./libs/lanexpr
• ./apps/cl-lanexpr

Intermediate Representations

irint3a

Register-based IR with int32 instructions and 32bits pointers. Can do basic maths, functions, calls, and (un)conditional branching.

Projects:

• ./libs/irint3a
• ./apps/irint3a-utils

irintsm

Really similar to irint3a, except that it's based on a stack-machine and doesn't have any registers

Projects:

• ./libs/irintsm
• ./apps/irintsm-utils

LLVM IR

Some compilers generate LLVM IR code.

Projects:

• ./libs/lanexpr

Testing

This script build and test all projects:

./check.sh

You can just do the building by using --only-build