On 12 Dec 2007 06:20:49 -0500
[email protected] wrote:
> With -O2, the cycle counts come out (before division) as
> out: 0xFFFFFFFFFFEA6F4F
> in: 0xFFFFFFFFFCE68BB6
> I think the "A" constraint doesn't work quite the same in
> 64-bit code. The compiler seems to be using %rdx rather than
> %edx:%eax.
In another message he says to compile it with "-m32" :)
--
Paolo Ornati
Linux 2.6.24-rc5-g4af75653 on x86_64
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