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  1. JDK
  2. JDK-8202377

Modularize C2 GC barriers

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    Details

    • Type: Enhancement
    • Status: Resolved
    • Priority: P4
    • Resolution: Fixed
    • Affects Version/s: 11
    • Fix Version/s: 11
    • Component/s: hotspot
    • Labels:
    • Subcomponent:
    • Resolved In Build:
      b15

      Backports

        Description

        The GC barriers for C2 are not as modular as they could be. It currently uses switch statements to check which GC barrier set is being used, and call one or another barrier based on that, in a way that it can only be used for write barriers.

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            backported by

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8203986 Modularize C2 GC barriers

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Resolved
            relates to

            Bug - A problem which impairs or prevents the functions of the product. JDK-8203454 Minimal, Zero builds fail after JDK-8202377 (Modularize C2 barriers)

            • P3 - Major loss of function.
            • Resolved

            Bug - A problem which impairs or prevents the functions of the product. JDK-8239142 C2's UseUniqueSubclasses optimization is broken for array accesses

            • P3 - Major loss of function.
            • Resolved

            Bug - A problem which impairs or prevents the functions of the product. JDK-8204331 AArch64: fix CAS not embedded in normal graph error.

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Resolved

            Bug - A problem which impairs or prevents the functions of the product. JDK-8203466 intermittent crash at jdk.internal.misc.Unsafe::getObjectVolatile (native)

            • P2 - Crashes, loss of data, severe memory leak.
            • Closed

            Enhancement - null JDK-8189871 Refactor GC barriers to use declarative semantics

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Resolved

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                Assignee:
                eosterlund Erik Österlund
                Reporter:
                eosterlund Erik Österlund
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                  Dates

                  Created:
                  Updated:
                  Resolved: