src/hotspot/share/gc/shenandoah/shenandoah_globals.hpp

rev 54386 : 8221766: Load-reference barriers for Shenandoah

@@ -242,11 +242,11 @@
           "When allocation tracing is enabled, the allocation stalls "      \
           "larger than this threshold would be reported as warnings. "      \
           "Time is in microseconds.")                                       \
                                                                             \
   experimental(uintx, ShenandoahEvacAssist, 10,                             \
-          "How many objects to evacuate on WB assist path. "                \
+          "How many objects to evacuate on LRB assist path. "               \
           "Use zero to disable.")                                           \
                                                                             \
   experimental(bool, ShenandoahPacing, true,                                \
           "Pace application allocations to give GC chance to start "        \
           "and complete before allocation failure is reached.")             \

@@ -350,31 +350,22 @@
           "Turn on/off SATB barriers in Shenandoah")                        \
                                                                             \
   diagnostic(bool, ShenandoahKeepAliveBarrier, true,                        \
           "Turn on/off keep alive barriers in Shenandoah")                  \
                                                                             \
-  diagnostic(bool, ShenandoahWriteBarrier, true,                            \
-          "Turn on/off write barriers in Shenandoah")                       \
-                                                                            \
-  diagnostic(bool, ShenandoahReadBarrier, true,                             \
-          "Turn on/off read barriers in Shenandoah")                        \
-                                                                            \
   diagnostic(bool, ShenandoahStoreValEnqueueBarrier, false,                 \
           "Turn on/off enqueuing of oops for storeval barriers")            \
                                                                             \
-  diagnostic(bool, ShenandoahStoreValReadBarrier, true,                     \
-          "Turn on/off store val read barriers in Shenandoah")              \
-                                                                            \
   diagnostic(bool, ShenandoahCASBarrier, true,                              \
           "Turn on/off CAS barriers in Shenandoah")                         \
                                                                             \
-  diagnostic(bool, ShenandoahAcmpBarrier, true,                             \
-          "Turn on/off acmp barriers in Shenandoah")                        \
-                                                                            \
   diagnostic(bool, ShenandoahCloneBarrier, true,                            \
           "Turn on/off clone barriers in Shenandoah")                       \
                                                                             \
+  diagnostic(bool, ShenandoahLoadRefBarrier, true,                          \
+          "Turn on/off load-reference barriers in Shenandoah")              \
+                                                                            \
   diagnostic(bool, ShenandoahStoreCheck, false,                             \
           "Emit additional code that checks objects are written to only"    \
           " in to-space")                                                   \
                                                                             \
   experimental(bool, ShenandoahConcurrentScanCodeRoots, true,               \

@@ -399,22 +390,15 @@
   experimental(bool, ShenandoahOptimizeStableFinals, false,                 \
           "Optimize barriers on stable fields."                             \
           "Turn it off for maximum compatibility with reflection or JNI "   \
           "code that manipulates final fields.")                            \
                                                                             \
-  diagnostic(bool, ShenandoahDecreaseRegisterPressure, false,               \
-          "Try to reuse after-barrier values to reduce register pressure")  \
-                                                                            \
   experimental(bool, ShenandoahCommonGCStateLoads, false,                   \
          "Enable commonming for GC state loads in generated code.")         \
                                                                             \
   develop(bool, ShenandoahVerifyOptoBarriers, false,                        \
           "Verify no missing barriers in C2")                               \
                                                                             \
-  experimental(bool, ShenandoahDontIncreaseWBFreq, true,                    \
-          "Common 2 WriteBarriers or WriteBarrier and a ReadBarrier only "  \
-          "if the resulting WriteBarrier isn't executed more frequently")   \
-                                                                            \
   experimental(bool, ShenandoahLoopOptsAfterExpansion, true,                \
-          "Attempt more loop opts after write barrier expansion")           \
+          "Attempt more loop opts after barrier expansion")                 \
 
 #endif // SHARE_GC_SHENANDOAH_SHENANDOAH_GLOBALS_HPP