On Sat, 2007-10-20 at 00:10 +0100, Jon Harrop wrote:

> > 6. Nevertheless, evaluation is fully deterministic, thus it certainly
> > cannot cause Heisenbugs, neither semantically nor performance-wise.
> 
> Perhaps I've missed something but surely evaluation order can alter asymptotic 
> complexity? If so, moving from one compiler to another can change the 
> asymptotic complexity of your program?

There's no need to do anything so radical. 
GHC uses the old fashioned compile/link technology.

All you need to do is copy and paste a file into another
and use the *same* compiler to gain speed improvements.

IMHO its about time this rubbish was eliminated.
Static linkers are a legacy technology from the '70s.


-- 
John Skaller <skaller at users dot sf dot net>
Felix, successor to C++: http://felix.sf.net