RFR:8188802:PPC64: Failure on assert(lrgmask.is_aligned_sets(RegMask::SlotsPerVecX))

[Michihiro Horie]

Dear all,

Would you please review the following change?
Bug: https://bugs.openjdk.java.net/browse/JDK-8188802
Webrev: http://cr.openjdk.java.net/~mhorie/8188802/webrev.00/

This change fixes the assertion failures, which occur after introducing "
8188139:PPC64: Superword Level Parallelization with VSX".
I exchanged the order of declarations of alloc_classes for SR and VSR.
After this fix, another assertion in rc_class() in ppc.ad failed, I
modified the assertion itself to take into account newly added VSRs.

I would be happy to revise code if these changes do not make sense.

Best regards,
--
Michihiro,
IBM Research - Tokyo
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