Formal annotating Code for Optimizations?

[BCS]

Reply to Walter,

> JAnderson wrote:
> 
>> MSVC++ 2005 has this profile that you can run on the code and then it
>> will use that to optimize the code to use the most common paths.  I'm
>> not sure if it also optimizes IF statements.  I know it optimizes
>> functions layout to be more cache friendly.
>> 
> The dmd profiler does this too. It emits a file, trace.def, which
> optimally orders functions based on the runtime profile, which you can
> then use as input to optlink.
> 

Oh? Cool! Link?