8236181: C2: Remove useless step_over_gc_barrier() in int->bool conve…

…rsion

Reviewed-by: thartmann, roland

src/hotspot/share/opto/cfgnode.cpp

@@ -1449,10 +1449,7 @@ static Node *is_x2logic( PhaseGVN *phase, PhiNode *phi, int true_path ) {
   } else return NULL;
 
   // Build int->bool conversion
-  Node *in1 = cmp->in(1);
-  BarrierSetC2* bs = BarrierSet::barrier_set()->barrier_set_c2();
-  in1 = bs->step_over_gc_barrier(in1);
-  Node *n = new Conv2BNode(in1);
+  Node *n = new Conv2BNode(cmp->in(1));
   if( flipped )
     n = new XorINode( phase->transform(n), phase->intcon(1) );