C2: Revisit !n->is_Type() bailout in PhaseIdealLoop::try_sink_out_of_loop()

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    • Type: Enhancement
    • Resolution: Unresolved
    • Priority: P4
    • tbd
    • Affects Version/s: 22, 23
    • Component/s: hotspot

      After the fix for JDK-8319372, which removed some better type information for CastIINode, we might be able to relax the added bailout constraint !n->is_Type(). This RFE should investigate if that's possible.

      We should be careful about sinking CheckCastPPNodes which, however, should be fine after the fix for JDK-8276064. But we should double-check that.

        1. TestArrayAccessAboveRCSunkLoad.java
          2 kB

            Assignee:
            Unassigned
            Reporter:
            Christian Hagedorn
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              Created:
              Updated: