>I assume you mean that when Intel releases a compiler that
>uses SSE3 they'll change Presscott's name/rating?
No, compilers evolve/improve constantly, even without using newer architectural features. You might remember much of the "Pentium" optimized code also benefitted older 486's. This same has always been true, while maybe not as spectacular as the increase we see with newer CPU's, compiler improvements are responsible for a major part of the overall system performance improvements of the last decade(s).
SSE3 won't do much btw, not even for SPEC; if it does I'd go out on a limb claiming its probably because of compiler improvements unrelated to SSE3 but that are only enabled when SSE3 capabilities are detected. Intel tends to do that,locking out older processors (and thereby typically also competing processors) of generic improvements their compiler would also achieve on older ISA's by detecting the feature set, and using a slower generic code path for cpu's without the feature, and using newer faster codepath for cpu's with them. Ct recenlty showed how by "hacking" the intel compiler, they managed to produce code that ran significantly faster on A64 using a codepath that was uniquely reserved for "genuine intel cpu's", but that ran perfectly well on the A64 regardless.
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