--- old/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.hotspot/src/org/graalvm/compiler/hotspot/HotSpotHostBackend.java	2017-07-07 09:30:16.000000000 -0700
+++ new/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.hotspot/src/org/graalvm/compiler/hotspot/HotSpotHostBackend.java	2017-07-07 09:30:14.000000000 -0700
@@ -26,8 +26,11 @@
 import static jdk.vm.ci.code.CodeUtil.getCallingConvention;
 import static jdk.vm.ci.common.InitTimer.timer;
 
+import java.util.Collections;
+
 import org.graalvm.compiler.core.common.NumUtil;
 import org.graalvm.compiler.core.common.spi.ForeignCallDescriptor;
+import org.graalvm.compiler.debug.DebugHandlersFactory;
 import org.graalvm.compiler.hotspot.meta.HotSpotHostForeignCallsProvider;
 import org.graalvm.compiler.hotspot.meta.HotSpotLoweringProvider;
 import org.graalvm.compiler.hotspot.meta.HotSpotProviders;
@@ -36,6 +39,7 @@
 import org.graalvm.compiler.lir.framemap.ReferenceMapBuilder;
 import org.graalvm.compiler.nodes.StructuredGraph;
 import org.graalvm.compiler.options.OptionValues;
+import org.graalvm.compiler.printer.GraalDebugHandlersFactory;
 
 import jdk.vm.ci.code.CallingConvention;
 import jdk.vm.ci.common.InitTimer;
@@ -77,7 +81,8 @@
             foreignCalls.initialize(providers, options);
         }
         try (InitTimer st = timer("lowerer.initialize")) {
-            lowerer.initialize(options, providers, config);
+            Iterable<DebugHandlersFactory> factories = Collections.singletonList(new GraalDebugHandlersFactory(providers.getSnippetReflection()));
+            lowerer.initialize(options, factories, providers, config);
         }
     }