libFuzzer to test a backend?

Can we use libFuzzer to test a backend? I have a corpus of LLVM IR files and I’d like to uncover new bugs in my backend. I see we have something called llvm-as-fuzzer which seem close to what I am looking for but not sure as I couldn’t find much information about it. 1. Is llvm-as-fuzzer a solution to my problem? 2. If so, where do I start and how do I setup?

This may be what you’re looking for: