[Bug-gnubg] Vectorization of neural nets just commited into CVS

[Øystein Johansen]

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Hi,

I've just added the code that adds neural net evaluation vectorized for
sse. To compile: #define USE_SSE_VECTORIZE 1

If someone can add the Makefile magic that would have been fine.

I have done vectorization of both Evaluate and EvaluateFromBase. I not
vectorized the evaluation with pruning nets.

Also, I have not aligned the ar and arInput arrays in neuralnet. This
may lead to some problems.

- -Øystein
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