src/hotspot/share/opto/loopopts.cpp

BarrierSetC2

  * questions.
  *
  */
 
 #include "precompiled.hpp"
+#include "gc/shared/barrierSet.hpp"
+#include "gc/shared/c2/barrierSetC2.hpp"
 #include "memory/allocation.inline.hpp"
 #include "memory/resourceArea.hpp"
 #include "opto/addnode.hpp"
 #include "opto/callnode.hpp"
 #include "opto/castnode.hpp"

@@ -1373,10 +1375,13
   if( n_op == Op_Opaque2 &&
       n->in(1) != NULL &&
       get_loop(get_ctrl(n)) == get_loop(get_ctrl(n->in(1))) ) {
     _igvn.replace_node( n, n->in(1) );
   }
+
+  BarrierSetC2* bs = BarrierSet::barrier_set()->barrier_set_c2();
+  bs->loop_optimize_gc_barrier(n);
 }
 
 //------------------------------split_if_with_blocks---------------------------
 // Check for aggressive application of 'split-if' optimization,
 // using basic block level info.