Re: Code optimization <LEA Instruction>

[H. Peter Anvin]

Alan Cox wrote:
> 
> > > (On Crusoe, of course, either of these become a single VLIW "add" atom
> > > and thus are completely equivalent.)
> >
> > Humm... do the gcc folks know about this stuff? Should be interesting to
> > integrate into instruction scheduling...
> 
> New game - the Crusoe has to know about gcc instead, and I suspect it does
> 

Not directly, although Crusoe's optimizer does quite well on
gcc-generated code.  We didn't need to turn it into a big project,
because gcc's code seems to do just fine with the default optimization
heuristics.

	-hpa