RFR: 8260369: [PPC64] Add support for JDK-8200555

Wed Feb 3 20:48:56 UTC 2021

I'd like to add the PPC64 part of JDK-8200555 "OopHandle should use Access API". This will be required to support ShenandoahGC and zGC.

I have to change register usage. That's what makes this change a bit larger.

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Commit messages:
 - add resolve_weak_handle which is also available on other platforms
 - remove debugging code
 - 8260369: [PPC64] Add support for JDK-8200555

Changes: https://git.openjdk.java.net/jdk/pull/2358/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=2358&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8260369
  Stats: 89 lines in 7 files changed: 25 ins; 2 del; 62 mod
  Patch: https://git.openjdk.java.net/jdk/pull/2358.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/2358/head:pull/2358

PR: https://git.openjdk.java.net/jdk/pull/2358