Wish: Variable Not Used Warning

[BCS]

Reply to Markus,

> For decades, PC processor manufacturers are optimized their processors
> for software, not in the other way. That is why the processors execute
> functions so quickly, that is the sole reasons for having caches (the
> regular locality of software, e.g. the IBM study from 60's).
> 

I hope I'm reading you wrong but if I'm not: The whole point of the talk 
is that CPU's can't get better performance by optimizing them more. If the 
code isn't written well (the code isn't optimized for the CPU) performance 
will not improve... ever.

>> Are you suggesting that it's not
>> something programmers should be aware of?
> Yes, I am.
> 

How can you say that? Expecting the tool chain to deal with cache effects 
would be like expecting it to convert a bubble sort into qsort.