Backend for Instruction List (IL) according to 61131-3


does anybody know about a llvm backend for creating IL according to 61131-3?
If there is no, what do you think, is it technically possible to write one and how much effort does this mean?
I’m new to all this stuff of llvm and so on, but it seems for me that IL is quite similar to assembler.

Best Regards

PS: sorry for double post, but it seems that something went wrong with my first post