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  1. JDK
  2. JDK-8231085

C2/GC: Better GC-interface for expanding clone

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    • b15
    • generic
    • generic

    Backports

      Description

        The current GC-interface for inserting barriers after expanded clones is rather rigid: it only allows to insert a barrier after the expanded clone. It does, for example, not allow a barrier *before* the clone. Also, a possible optimization would be to generate only a single call for both the barrier and the actual clone, i.e. replace the whole clone-expansion with a GC-specific call.

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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-8233070 C2/GC: Better GC-interface for expanding clone

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

            Enhancement - null JDK-8231086 Shenandoah: Stronger invariant for object-arraycopy

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

            Enhancement - null JDK-8212243 More gc interface tweaks for arraycopy

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

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                rkennke Roman Kennke
                rkennke Roman Kennke
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