[ECOS] TCP/IP checksum routine performance

[Jonathan Larmour]

Andrew Lunn wrote:
> 
> I think the real problem to be addressed is why gcc gets into the
> register threash problem? My guess is that it should consider delaying
> the add, lay the code out and then find out its run out of
> registers. It should then change its mind and not delay the add. Its
> not looking at the code it produced and sanity checking it to see if
> the optimisintion its made has actually made the code worse.

Did anyone actually say which gcc version was being used?

Jifl
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