Intel announced the first version of an LLVM IR SDK. The LLVM IR SDK is comprised of an LLVM IR editor plug-in for the Eclipse Integrated Development Environment.
Key features of this Eclipse plug-in for dealing with the LLVM IR is syntax highlighting, definitions on hover, content assist, syntax checking, type checking, and domniance checking. So if your project/front-end hooks into LLVM, it's now easier to integrate with Eclipse. This plug-in is compatible at the moment with the IR emitted by LLVM 3.2.
More details on this new Intel open-source project can be found via the LLVM mailing list announcement
and the GitHub project page