--- old/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.nodes/src/org/graalvm/compiler/nodes/spi/Replacements.java	2018-12-11 11:13:30.000000000 -0800
+++ new/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.nodes/src/org/graalvm/compiler/nodes/spi/Replacements.java	2018-12-11 11:13:30.000000000 -0800
@@ -33,6 +33,7 @@
 import org.graalvm.compiler.graph.NodeSourcePosition;
 import org.graalvm.compiler.nodes.StructuredGraph;
 import org.graalvm.compiler.nodes.graphbuilderconf.GraphBuilderConfiguration;
+import org.graalvm.compiler.nodes.graphbuilderconf.GraphBuilderPlugin;
 import org.graalvm.compiler.nodes.graphbuilderconf.InvocationPlugin;
 import org.graalvm.compiler.options.OptionValues;
 
@@ -52,6 +53,11 @@
     GraphBuilderConfiguration.Plugins getGraphBuilderPlugins();
 
     /**
+     * Gets the plugin type that intrinsifies calls to {@code method}.
+     */
+    Class<? extends GraphBuilderPlugin> getIntrinsifyingPlugin(ResolvedJavaMethod method);
+
+    /**
      * Gets the snippet graph derived from a given method.
      *
      * @param args arguments to the snippet if available, otherwise {@code null}
@@ -75,7 +81,7 @@
     /**
      * Registers a method as snippet.
      */
-    void registerSnippet(ResolvedJavaMethod method, boolean trackNodeSourcePosition);
+    void registerSnippet(ResolvedJavaMethod method, ResolvedJavaMethod original, Object receiver, boolean trackNodeSourcePosition);
 
     /**
      * Gets a graph that is a substitution for a given method.
@@ -138,4 +144,13 @@
      * {@link Replacements#registerSnippetTemplateCache(SnippetTemplateCache)}.
      */
     <T extends SnippetTemplateCache> T getSnippetTemplateCache(Class<T> templatesClass);
+
+    /**
+     * Notifies this method that no further snippets will be registered via {@link #registerSnippet}
+     * or {@link #registerSnippetTemplateCache}.
+     *
+     * This is a hook for an implementation to check for or forbid late registration.
+     */
+    default void closeSnippetRegistration() {
+    }
 }