[9] RFR(S) 8129094: assert(is_java_primitive(bt)) failed: only primitive type vectors

[Vladimir Kozlov]

http://cr.openjdk.java.net/~kvn/8129094/webrev/
https://bugs.openjdk.java.net/browse/JDK-8129094

If memory operation is not of primitive type it will be not vectorized 
and should be ignored regardless it (or its inputs) control.

Tested with failing tests.

Thanks,
Vladimir