Originally posted by whitecat
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It is possible to write code for less capable x86 processor families that will automatically detect more capable x86 processor families and adjust the path to make things faster, but that is something that developers would rely on a compiler to do. It is difficult to maintain kernel code if you do your compiler's job for it. The reason for this is that the Linux kernel supports more than just x86. It doesn't make sense for the kernel developers to write hacks that second guess a specific processor family unless they do it in a way that benefits all architectures. I would be surprised if Linus Torvalds committed code that did this while only being relevant to a single architecture.
Originally posted by whitecat
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