C1: Make RBP allocatable on x64 when PreserveFramePointer is disabled

XMLWordPrintable

    • Type: Enhancement
    • Resolution: Withdrawn
    • Priority: P4
    • tbd
    • Affects Version/s: 23
    • Component/s: hotspot

      Currently, RBP is not visible in C1 register allocation.

      If I understand correctly, there is no reason that RBP cannot be used when PreserveFramePointer is disabled. (PreserveFramePointer is disabled by default). So I think we should make it allocatable.

      Please feel free to correct me if I am missing something.

            Assignee:
            Denghui Dong
            Reporter:
            Denghui Dong
            Votes:
            0 Vote for this issue
            Watchers:
            4 Start watching this issue

              Created:
              Updated:
              Resolved: