MiniC to UCode Compiler

About project

This is a MiniC compiler project using JAVA Antlr which generates UCode of IR.

Contents

Simple pointer function

void swap(int *a, int *b) {
    int temp;
    temp = *a;
    *a = *b;
    *b = temp;
}

void main() {
    int a = 5;
    int b = 10;
    swap(&a, &b);
    write(a);
    write(b);
}

Compile error detection

• Use of undeclared identifier
  
• Non-void function should return a value
  
• Void function should not return a value
  
• Initializing 'int' with an expression of incompatible type 'void'
  

Make control flow graph

Optimize unreachable code elimination(with Mark & Sweep Algorithm)

Author

Minho Kim, Yoonjae Cho