src/hotspot/share/gc/shenandoah/heuristics/shenandoahTraversalHeuristics.cpp

rev 54386 : 8221766: Load-reference barriers for Shenandoah

*** 35,45 ****
  
  ShenandoahTraversalHeuristics::ShenandoahTraversalHeuristics() : ShenandoahHeuristics(),
    _last_cset_select(0)
   {
    FLAG_SET_DEFAULT(ShenandoahSATBBarrier,            false);
-   FLAG_SET_DEFAULT(ShenandoahStoreValReadBarrier,    false);
    FLAG_SET_DEFAULT(ShenandoahStoreValEnqueueBarrier, true);
    FLAG_SET_DEFAULT(ShenandoahKeepAliveBarrier,       false);
    FLAG_SET_DEFAULT(ShenandoahAllowMixedAllocs,       false);
  
    SHENANDOAH_ERGO_OVERRIDE_DEFAULT(ShenandoahRefProcFrequency, 1);
--- 35,44 ----
*** 51,65 ****
  
    SHENANDOAH_ERGO_ENABLE_FLAG(ExplicitGCInvokesConcurrent);
    SHENANDOAH_ERGO_ENABLE_FLAG(ShenandoahImplicitGCInvokesConcurrent);
  
    // Final configuration checks
!   SHENANDOAH_CHECK_FLAG_SET(ShenandoahReadBarrier);
!   SHENANDOAH_CHECK_FLAG_SET(ShenandoahWriteBarrier);
    SHENANDOAH_CHECK_FLAG_SET(ShenandoahStoreValEnqueueBarrier);
    SHENANDOAH_CHECK_FLAG_SET(ShenandoahCASBarrier);
-   SHENANDOAH_CHECK_FLAG_SET(ShenandoahAcmpBarrier);
    SHENANDOAH_CHECK_FLAG_SET(ShenandoahCloneBarrier);
  }
  
  bool ShenandoahTraversalHeuristics::should_start_normal_gc() const {
    return false;
--- 50,62 ----
  
    SHENANDOAH_ERGO_ENABLE_FLAG(ExplicitGCInvokesConcurrent);
    SHENANDOAH_ERGO_ENABLE_FLAG(ShenandoahImplicitGCInvokesConcurrent);
  
    // Final configuration checks
!   SHENANDOAH_CHECK_FLAG_SET(ShenandoahLoadRefBarrier);
    SHENANDOAH_CHECK_FLAG_SET(ShenandoahStoreValEnqueueBarrier);
    SHENANDOAH_CHECK_FLAG_SET(ShenandoahCASBarrier);
    SHENANDOAH_CHECK_FLAG_SET(ShenandoahCloneBarrier);
  }
  
  bool ShenandoahTraversalHeuristics::should_start_normal_gc() const {
    return false;