Re: [PATCH] 1-2-3 GB

[Hugh Dickins]

On Fri, 18 Jan 2002, Pavel Machek wrote:
> 
> > The patch below seems to be enough to convince egcs-2.91.66 and
> > gcc-2.95.3 to use a "jb" comparison there.  I'm working on PIII,
> > prefetchw() just a stub, if that makes any difference.
> 
> If this is really gcc bug, would simply making j volatile fix it?

You rogue!  The panacea, eh?  Well, yes, it does look like that's
enough with egcs-2.91.66 (I don't have 2.95 here to try at the moment,
expect it would behave the same) - the comparison uses "jle" as before,
but now it's correctly on free_one_pmd's index j instead of an address.
Neat - but an even bigger fatter comment needed?

Hugh