--- old/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.core.common/src/org/graalvm/compiler/core/common/GraalOptions.java	2017-07-07 09:29:25.000000000 -0700
+++ new/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.core.common/src/org/graalvm/compiler/core/common/GraalOptions.java	2017-07-07 09:29:25.000000000 -0700
@@ -24,8 +24,8 @@
 
 import org.graalvm.compiler.debug.Assertions;
 import org.graalvm.compiler.options.Option;
-import org.graalvm.compiler.options.OptionType;
 import org.graalvm.compiler.options.OptionKey;
+import org.graalvm.compiler.options.OptionType;
 
 /**
  * This class encapsulates options that control the behavior of the Graal compiler.
@@ -109,6 +109,9 @@
     @Option(help = "", type = OptionType.Debug)
     public static final OptionKey<Boolean> LoopUnswitch = new OptionKey<>(true);
 
+    @Option(help = "", type = OptionType.Debug)
+    public static final OptionKey<Boolean> PartialUnroll = new OptionKey<>(true);
+
     @Option(help = "", type = OptionType.Expert)
     public static final OptionKey<Float> MinimumPeelProbability = new OptionKey<>(0.35f);