src/cpu/ppc/vm/vm_version_ppc.cpp

rev 12409 : 8171266: PPC64: Add support to -XX:RTMSpinLoopCount=0

*** 326,336 ****
      }
      if (RTMAbortRatio < 0 || RTMAbortRatio > 100) {
        warning("RTMAbortRatio must be in the range 0 to 100, resetting it to 50");
        FLAG_SET_DEFAULT(RTMAbortRatio, 50);
      }
!     guarantee(RTMSpinLoopCount > 0, "unsupported");
  #else
      // Only C2 does RTM locking optimization.
      // Can't continue because UseRTMLocking affects UseBiasedLocking flag
      // setting during arguments processing. See use_biased_locking().
      vm_exit_during_initialization("RTM locking optimization is not supported in this VM");
--- 326,339 ----
      }
      if (RTMAbortRatio < 0 || RTMAbortRatio > 100) {
        warning("RTMAbortRatio must be in the range 0 to 100, resetting it to 50");
        FLAG_SET_DEFAULT(RTMAbortRatio, 50);
      }
!     if (RTMSpinLoopCount < 0) {
!       warning("RTMSpinLoopCount must not be a negative value, resetting it to 0");
!       FLAG_SET_DEFAULT(RTMSpinLoopCount, 0);
!     }
  #else
      // Only C2 does RTM locking optimization.
      // Can't continue because UseRTMLocking affects UseBiasedLocking flag
      // setting during arguments processing. See use_biased_locking().
      vm_exit_during_initialization("RTM locking optimization is not supported in this VM");