On Sun, 2011-11-20 at 21:29 +0100, Kurt Roeckx wrote:
> On Sun, Nov 20, 2011 at 07:36:43PM +0000, Ben Hutchings wrote:
> >
> > So far as I'm aware, none of the above will be generated directly by
> > compilers (though they may be available through 'intrinsics'). So it
> > may be that there is little to be gained by moving to 586-class as a
> > minimum. If that is so, we should instead think forward to 686-class
> > with CMOV as a minimum for wheezy + 1. Use of CMOV instructions is an
> > important optimisation and they *are* generated directly by compilers.
>
> And I think gcc already generates cmov instructions.
Not by default on i386.
Ben.
--
Ben Hutchings
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