I suppose the choice of word was to describe what code a human would intuitively/idomatically write for this situation. Whereas compiler passes are often wont

I suppose the choice of word was to describe what code a human would intuitively/idomatically write for this situation. Whereas compiler passes are often wont to sum up to unintuitive/non-obvious code that is "correct" in that it's a valid lowering of the higher level code but not likely what a human would've written. This can sometimes be a pro or a con in terms of the resulting code's performance.