Many instructions in assembly is simply “logistics” of where should this or that byte go. Machines are eons better at it at large scopes than humans, you surely

Many instructions in assembly is simply “logistics” of where should this or that byte go. Machines are eons better at it at large scopes than humans, you surely don’t have enough hair to sit through and carefully examine every register. Also, will you decide on a case by case basis to “inline” a function’s body? What if the function’s body changes? Will you go back to every “inlined” part? What if that makes a more efficient register allocation possible, rewrite the whole function where the inline happened?