LLVM's IR makes no stability guarantees - it can change from one release to the next, with no backward compatibility. That's not ideal for something you're slin

LLVM's IR makes no stability guarantees - it can change from one release to the next, with no backward compatibility. That's not ideal for something you're slinging out to the web. I believe this is the same reason Khronos defined their own IR (SPIR) instead of using LLVM's. Needs to be stable.