It's not true for a place-and-route engine, so why does it have to be true for a C compiler?
Nobody else cares. If you do, that's great, I guess... but you'll be outcompeted by people who don't.
Nobody else cares. If you do, that's great, I guess... but you'll be outcompeted by people who don't.
In the meantime: no, deterministic code generation isn't necessary, and anyone who says it is is wrong.