src/share/vm/opto/graphKit.cpp

rev 14282 : Factor out keep-alive barrier from usual pre-barrier implementations.

*** 1629,1638 ****
--- 1629,1675 ----
        ShouldNotReachHere();
  
    }
  }
  
+ void GraphKit::keep_alive_barrier(Node* ctl, Node* obj) {
+   BarrierSet* bs = Universe::heap()->barrier_set();
+   switch (bs->kind()) {
+     case BarrierSet::G1SATBCTLogging:
+       pre_barrier(false /* do_load */,
+                   ctl,
+                   NULL /* obj */,
+                   NULL /* adr */,
+                   max_juint /* alias_idx */,
+                   NULL /* val */,
+                   NULL /* val_type */,
+                   obj /* pre_val */,
+                   T_OBJECT);
+       break;
+     case BarrierSet::ShenandoahBarrierSet:
+       if (ShenandoahKeepAliveBarrier) {
+         pre_barrier(false /* do_load */,
+                     ctl,
+                     NULL /* obj */,
+                     NULL /* adr */,
+                     max_juint /* alias_idx */,
+                     NULL /* val */,
+                     NULL /* val_type */,
+                     obj /* pre_val */,
+                     T_OBJECT);
+       }
+       break;
+     case BarrierSet::CardTableForRS:
+     case BarrierSet::CardTableExtension:
+     case BarrierSet::ModRef:
+       break;
+     default      :
+       ShouldNotReachHere();
+ 
+   }
+ }
+ 
  Node* GraphKit::store_oop(Node* ctl,
                            Node* obj,
                            Node* adr,
                            const TypePtr* adr_type,
                            Node* val,