How to uninstall llvm3.2

I use the source code to install the llvm to my system.(ubuntu 12.10)
After I make install, I want to uninstall it from my system.
But I found it didn't work.
make: *** No rule to make target `uninstall'. Stop.

So, do I need to remove the file by hand?
Is there other way to do that?

Just delete the directory and all the subdirectories where you installed it.

wherever "make install" put things

rm -rf ...install-directory

it's not changing paths or other things

to be more precise:

rm -f <install-directory>

there <install-directory> is where "make install" put things