hehe, its funny to see how you deturn the general sense into small pieces just to make it keeping more a less the same meaning, but by still isolating the parts where you can place your opinion and finally return them
I basically don't care of what gcc compiler people use here at job. Most of them produce code that is trashed the next week (university researchers, in voice recognition, numerical analysis and such...) and they make themselves the choice of their compilers.
One thing is sure, all of them finnally end up with gcc as soon as they start to work on unix like stations.
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I think that it is possible to use icc to write code for older x86 chips, if that is what you're asking. I am told that the performance benefits are still evidenced, perhaps due to more agressive memory alignment strategies. The compiler supports some optimizations, though, that are very chip specific. This is true for gcc and ms cl, too.
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Well no, that's not what i was asking. The question is : i wrote some optimized code for my P4, can i compile it on that other computer which only has a P2 ?