few more defaults changes for new AMD processors

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    • Type: Enhancement
    • Resolution: Fixed
    • Priority: P3
    • hs21
    • Affects Version/s: hs21
    • Component/s: hotspot
    • None
    • b11
    • x86
    • generic
    • Not verified

        Please review this patch which changes a few more defaults for the AMD family 15h processors. The webrev is at

        http://cr.openjdk.java.net/~tdeneau/bd-defaults-part2/webrev.01/

           * A previous patch made the default AllocationPrefetchStyle
             style 0 (no prefetch). Here we add that if a different style
             is specified and a prefetch instruction type is not explicitly specified,
             the default prefetch instruction will be PREFETCHW.

           * UseXMMForArrayCopy and UseUnalignedLoadStores default to true

        -- Tom Deneau, AMD

              Assignee:
              Vladimir Kozlov
              Reporter:
              Vladimir Kozlov
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