Improve implicit null check generatation

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    • Type: Enhancement
    • Resolution: Fixed
    • Priority: P4
    • hs14
    • Affects Version/s: hs14
    • Component/s: hotspot
    • b05
    • sparc
    • solaris_10

        VM doesn't generate implicit null check if there are empty blocks
        between null test and uncommon_trap call.
        Also VM specifies the holder of a tested oop in uncommon_trap's debug info
        instead of passing NULL. This increase registers pressure.

              Assignee:
              Vladimir Kozlov
              Reporter:
              Vladimir Kozlov
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