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  1. JDK
  2. JDK-8311587

GenShen: cmpxchg_oop() needs store_check()

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Details

    • Bug
    • Resolution: Unresolved
    • P4
    • None
    • None
    • hotspot
    • gc

    Description

      A code review of barrier implementations for x86, ppc, aarch64, riscv reveals that none of the implementations of cmpxchg_oop() marks the overwritten remembered set card as dirty. We need to add code to dirty the remembered set card when in generational mode.

      The code generated by cmpxchg_oop() needs to also include code generated by store_check(), which updates the remembered set only if mode is generational.

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            Unassigned Unassigned
            kdnilsen Kelvin Nilsen
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              Created:
              Updated: