On inlining in C++

[Bernd Schmidt]

On Mon, 4 Aug 2003, Robert Dewar wrote:

> > Perhaps there is, but the Principle of Least Surprise favours a
> > fairly literal interpretation of "inline".
>
> I don't agree, a huge blow up in size, resulting in slower execution because
> of icache overload, can also qualify as a surprise.
>
> Indeed we find that customers are quite often surprised to find that -O3
> is slower than -O2 (as well as generating lots of code).

Which seems to prove the point that compiler heuristics aren't working well
in practice.  Hence, explicit control is necessary.


Bernd