Yang Zhang dd6344fc76 8213134: AArch64: vector shift failed with MaxVectorSize=8
Add vshiftcnt instructions for vector64 and add vsra/vsrl instructions to AArch64 backend. To detect shift failures, MaxVectorSize options are added to jtreg test cases.

Reviewed-by: aph, kvn
2018-11-28 16:22:03 +08:00
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