GHC API: Access to nativeCodeGen?

Hello, I would like to use nativeCodeGen outside of GHC to generate code from an IR. The IR would be produced by a third party program, not the GHC frontend. Looking at CVS HEAD I can see that GHC.hs exports plenty of things (for the GHC API I presume), but I can't find anything that lets me input some sort of IR and have ASM in return. Am I missing it somewhere or is there no way to input IR and get ASM in return? If there isn't, is such a feature planned/wanted? If such a feature isn't planned, I would appreciate any ideas on how to to accomplish the same thing. I have no problems with having a build tree of GHC laying around if that makes things easier. It would be a nice bonus if it made my maintenance burden low. / Peter