RFR (M): 8143353: Update for x86 sin and cos in the math lib

[Deshpande, Vivek R]

Hi all

I would like to contribute a patch which optimizes Math.sin() and Math.cos() for 64 and 32 bit X86 architecture using Intel LIBM  implementation.
The improvement gives ~4.25x gain over base for both sin and cos.
The option to use the optimizations are -XX:+UseLibmSinIntrinsic and -XX:+UseLibmCosIntrinsic.
Could you please review and sponsor this patch.

Bug-id:
https://bugs.openjdk.java.net/browse/JDK-8143353
webrev:
 http://cr.openjdk.java.net/~mcberg/8143353/webrev.01/

Thanks and regards,
Vivek

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