better TLS poll for x64 C2

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    • Type: Enhancement
    • Resolution: Fixed
    • Priority: P3
    • 12
    • Affects Version/s: 10, 11, 12
    • Component/s: hotspot
    • b09

      JDK-8193009 removes the encoding restriction for the x64 tls poll base register. We should fix C2 to take advantage of this by changing safePoint_poll_tls to use rRegP instead of rex_RegP.

            Assignee:
            Dean Long
            Reporter:
            Dean Long
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              Updated:
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