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  1. JDK
  2. JDK-8260682

Dedicate API should be provided for object loading in c2 optimization stage

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      This is a follow-up of JDK-8260473.

      ArrayCopyNode expansion and Vector unbox expansion use the similar logic to create a barrier resolved LoadNode.
      It would be better to provide an API for reducing the code redundancy and simplifying the usage of LoadNode creation during c2 optimization stage, just like 'GraphKit::access_load_at'.

            Unassigned Unassigned
            jiefu Jie Fu
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