A Toy Compiler using LLVM Infrastructure

That is a toy compiler for C19 language - created only for this specific porpouse. Developed to learn more about the LLVM Infrastructure and front-end compiler. The development was based on Loren's tutorial. You are invited to explore and learn more about LLVM Infrastructure!

Dependencies

• clang++ 10
• clang 10
• llvm 10

To compile we need clang++-10, and when the compiler runs, we need clang-10 to compile the llvm bitcode. So if your clang links differ from these, I suggest you to creat symbolic links for them.

C19 Language

The grammar of the language is very simple, as follow:

program: statments

statments: statment
           | statments statment

statment: assignment
          | print

assignment: identifier = expression;

print: print(expression);

expression: expression + expression
            | expression - expression
            | expression * expression
            | expression / expression
            | (expression)
            | identifier
            | number

Usage

Compile

• make

Run

• ./c19 -i <input c19 file> -o <output file name> [-b] [-s] [-h]