JDK 9 RFC on 8032016: Optimizations of Math.next{After, Up}({float, double})

[Brian Burkhalter]

Hello,

Issue:	https://bugs.openjdk.java.net/browse/JDK-8032016
Patch:	http://cr.openjdk.java.net/~bpb/8032016/webrev.00/

The performance improvements of this change are marginal but the logic seems reasonable and the code looks cleaner so I am posting this as an RFC.

Comments?

Thanks,

Brian