MiniJaba

MiniJaba is my course project for COMP130014.02 Compilers @ Fudan Univ.

MiniJaba is an implementation for MiniJava.

The project uses JFlex and Bison to generate the parser, and ASM / javacpp-llvm to generate JVM Bytecode / LLVM IR or native code.

Prerequisites

• JDK 8+
• JFlex (optional)
• Bison (optional)

Build

Generate lexer: (Optional)
./gradlew jflex
Generate parser: (Optional)
./gradlew bison
Build:
./gradlew build
Generate fat jar:
./gradlew shadowJar
If you don't want to or cannot build the LLVM backend, please checkout the nollvm branch.

Run

Print AST:
java -jar build/libs/MiniJaba-all.jar -p samples/binarysearch.java
Run interpreter:
java -jar build/libs/MiniJaba-all.jar -i samples/binarysearch.java
Compile to bytecode:
java -jar build/libs/MiniJaba-all.jar -j samples/binarysearch.java
Run bytecode:
java moe.taiho.minijaba.generated.BinarySearch
Compile to bitcode:
java -jar build/libs/MiniJaba-all.jar -l samples/binarysearch.java
Run bitcode:
lli BinarySearch.bc
Compile to native code:
java -jar build/libs/MiniJaba-all.jar -n samples/binarysearch.java
Link native code:
gcc -static BinarySearch.o -o BinarySearch
Run native code:
./BinarySearch