Perhaps part of a complex review chain for said function that's a few hundred LLM invocations total.

So long as there's a human reviewing it at the end and it gets locked, I'd argue it ultimately doesn't matter how the code was initially created.

There's a lot of reasons it would matter before it gets to that point, just more to do with system design concerns. Of course, you could also argue safety is an ongoing process that partially derives from system design and you wouldn't be wrong.

It occurred to me there's some recent prior art here:

https://news.ycombinator.com/item?id=47721953

It's probably fair to say the Linux kernel is critical infra, or at least a component piece in a lot of it.