ANTLR Compiler (CMPT 379)

Four stages of developing an ANTLR-based compiler that targets the x86 architecture

Pre-requisites

• openjdk-8-jdk
• graphviz
• ANTLR 4.5.3 (contained in lib/ folder)

Usage

After modifying any .g4 file, run make to re-compile the source file. To remove all compiled java source files, run make clean.

What I Learned

• Phases (lexing, syntax, semantics, intermediate codegen) of compilers
• DFAs, NFAs, regexs
• Writing context-free grammars
• Parse trees (Top-down vs bottom-up)
• Implementing scope, type hierarchy, control-flow for intermediate codegen
• Memory layout, call-return communication
• Local/peephole optimization