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  1. JDK
  2. JDK-8232782

Shenandoah: streamline post-LRB CAS barrier (aarch64)

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    • Subcomponent:
      gc
    • Resolved In Build:
      b05

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        Description

        This is the follow-up after JDK-8222766, but for AArch64.

        After LRB switched Shenandoah to strong to-space invariant, we can simplify CAS handling logic a bit. Notably, we can avoid the retry loop that was needed due to from-space ptrs potentially stored in memory.

        Current CAS code in AArch64 uses LL/SC with retries already, and so it needs to be carefully reviewed and optimized.

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                Assignee:
                kdnilsen Kelvin Nilsen
                Reporter:
                shade Aleksey Shipilev
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