How to target LLVM from a compiler written in F#?

I'm part way through writing a toy language in F#. I want to target LLVM, but it looks like I'll have to do some work to make that happen.

It looks like I might be able to do some interop with the IRBuilder libraries, or I might be able to roll my own IR emitter. As far as I've searched, I couldn't find any solution that anyone else has made.

How might I do this?