--- a/src/hotspot/share/gc/z/c2/zBarrierSetC2.cpp	Thu Feb 14 15:27:12 2019 -0800
+++ b/src/hotspot/share/gc/z/c2/zBarrierSetC2.cpp	Thu Feb 14 15:27:12 2019 -0800
@@ -130,7 +130,7 @@
   ZBarrierSetC2State* s = bs->state();
   if (s->load_barrier_count() >= 2) {
     Compile::TracePhase tp("idealLoop", &C->timers[Phase::_t_idealLoop]);
-    PhaseIdealLoop ideal_loop(igvn, LoopOptsLastRound);
+    PhaseIdealLoop::optimize(igvn, LoopOptsLastRound);
     if (C->major_progress()) C->print_method(PHASE_PHASEIDEALLOOP_ITERATIONS, 2);
   }
 }