*** old/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.core/src/org/graalvm/compiler/core/phases/MidTier.java	Fri Jul  7 09:29:51 2017
--- new/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.core/src/org/graalvm/compiler/core/phases/MidTier.java	Fri Jul  7 09:29:50 2017

*** 24,36 ****
--- 24,41 ----
  
  import static org.graalvm.compiler.core.common.GraalOptions.ConditionalElimination;
  import static org.graalvm.compiler.core.common.GraalOptions.ImmutableCode;
  import static org.graalvm.compiler.core.common.GraalOptions.OptDeoptimizationGrouping;
  import static org.graalvm.compiler.core.common.GraalOptions.OptFloatingReads;
+ import static org.graalvm.compiler.core.common.GraalOptions.OptLoopTransform;
+ import static org.graalvm.compiler.core.common.GraalOptions.PartialUnroll;
  import static org.graalvm.compiler.core.common.GraalOptions.ReassociateInvariants;
  import static org.graalvm.compiler.core.common.GraalOptions.VerifyHeapAtReturn;
  
+ import org.graalvm.compiler.loop.DefaultLoopPolicies;
+ import org.graalvm.compiler.loop.LoopPolicies;
+ import org.graalvm.compiler.loop.phases.LoopPartialUnrollPhase;
  import org.graalvm.compiler.loop.phases.LoopSafepointEliminationPhase;
  import org.graalvm.compiler.loop.phases.ReassociateInvariantPhase;
  import org.graalvm.compiler.nodes.spi.LoweringTool;
  import org.graalvm.compiler.options.OptionValues;
  import org.graalvm.compiler.phases.PhaseSuite;

*** 77,92 ****
--- 82,107 ----
  
          appendPhase(new LoweringPhase(canonicalizer, LoweringTool.StandardLoweringStage.MID_TIER));
  
          appendPhase(new FrameStateAssignmentPhase());
  
+         LoopPolicies loopPolicies = createLoopPolicies();
+         if (OptLoopTransform.getValue(options)) {
+             if (PartialUnroll.getValue(options)) {
+                 appendPhase(new LoopPartialUnrollPhase(loopPolicies, canonicalizer));
+             }
+         }
          if (ReassociateInvariants.getValue(options)) {
              appendPhase(new ReassociateInvariantPhase());
          }
  
          if (OptDeoptimizationGrouping.getValue(options)) {
              appendPhase(new DeoptimizationGroupingPhase());
          }
  
          appendPhase(canonicalizer);
      }
+ 
+     public LoopPolicies createLoopPolicies() {
+         return new DefaultLoopPolicies();
+     }
  }