[vector] Unary/Ternary ops

[Al K]

http://cr.openjdk.java.net/~vlivanov/panama/vector.generalized_intrinsics/webrev.06/


This extends the generalized intrinsics changeset with the following:

1. General ternary ops - currently only fma

2. General unary ops - abs/neg/sqrt


I've replaced the previous inline_vector_binary_operation() in opto/library_call

with a generic inline_vector_nary_operation() to avoid writing specialized impls

for the various n-ary ops.


There's also a change in os/linux/os_linux to fix the pointer
comparison so clang

would stop complaining.


I've signed the OCA, awaiting for it to be reflected on the site.


Cheers,

Al