Please, add jllvm to portage.
jllvm are bindings for LLVM, providing an object-oriented interface as similar as possible to the C++ bindings for JVM languages. Underneath, they go through LLVM's C bindings. They currently bind to the headers and ABI of LLVM 3.1.
Created attachment 340706 [details]
This is the ebuild I have written to install jllvm on my system.
Looks dead upstream. Google Code site is dead. There seems to be some GitHub export with last commit in 2013. Certainly won't work with current LLVM versions.