InstantCompiler

Simple compiler of Instant language to JVM bytecode and LLVM bitcode.
First task of Compilers Construction course at MIMUW.

Language

Instant is a simple language based on non-negative integers, arithmetical operations and variables.
Non-context grammar of this language is described in src/Instant.cf file (BNF format).

Used tools

• BNFC 2.8 for compiler front-end generating.

Dependencies

Dependencies of parser and lexer:

• bison
• flex

C++:

• gcc 5.2
• make

Compilation

Type make in main directory of repository to create two executables - insc_jvm and insc_llvm.

Usage

• ./insc_jvm foo/bar/in.ins # to compile in.ins file in foo/bar directory

generates files in.j and in.java in foo/bar directory.

• ./insc_llvm foo/bar/in.ins # to compile in.ins file in foo/bar directory

generates files in.ll and in.bc in foo/bar directory.

Repository structure

• InstantCompiler
  • src - contains source code of project
  • lib - contains jasmin.jar - tool for translation to JVM bytecode and runtime.bc - file with definitions of helper functions for LLVM bitcode execution
  • tests - contains .ins and .output files with desired output of Instant input