You don’t need to lower the optimization level to see what happens at the call site: you can turn the function ‘blub’ into a function prototype. The optimizer c

You don’t need to lower the optimization level to see what happens at the call site: you can turn the function ‘blub’ into a function prototype. The optimizer cannot in-line your code if it isn’t available. https://www.godbolt.org/z/sj11rc https://www.godbolt.org/z/sj11rc