LLVM-CFG-DFG-pass

Simple passes for CFG and DFG analysis

quick start

We have already bulid the file, so you can use it directly as long as the following requirements are satisified:

• you pc has already installed llvm & clang
• graphviz installed on your pc (use sudo apt-get install graphviz graphviz-doc if you do not possess one)

1. build the project

	cd CFGPass/build
	cmake ..
	make
	
	cd DFGPass/build
	cmake ..
	make

2. run the test case

use the bash command to test our passes

	sh testDFGPass.sh
	sh testCFGPass.sh

the result is based on the c code: test.c

fig1: CFG for test.c

fig1: DFG for test.c

Note: each argument has been marked with different kinds of color. So the life span of each argument can be visible in this graph.