compiler: allow SnippetTemplate to update the duplicates map

Author: zapster

compiler/src/org.graalvm.compiler.graph/src/org/graalvm/compiler/graph/Graph.java

@@ -1241,7 +1241,7 @@ public int nodeIdCount() {
      * @param replacementsMap the replacement map (can be null if no replacement is to be performed)
      * @return a map which associates the original nodes from {@code nodes} to their duplicates
      */
-    public UnmodifiableEconomicMap<Node, Node> addDuplicates(Iterable<? extends Node> newNodes, final Graph oldGraph, int estimatedNodeCount, EconomicMap<Node, Node> replacementsMap) {
+    public EconomicMap<Node, Node> addDuplicates(Iterable<? extends Node> newNodes, final Graph oldGraph, int estimatedNodeCount, EconomicMap<Node, Node> replacementsMap) {
         DuplicationReplacement replacements;
         if (replacementsMap == null) {
             replacements = null;

compiler/src/org.graalvm.compiler.replacements/src/org/graalvm/compiler/replacements/SnippetTemplate.java

@@ -1608,7 +1608,7 @@ public UnmodifiableEconomicMap<Node, Node> instantiate(MetaAccessProvider metaAc
             StructuredGraph replaceeGraph = replacee.graph();
             EconomicMap<Node, Node> replacements = bind(replaceeGraph, metaAccess, args);
             replacements.put(entryPointNode, AbstractBeginNode.prevBegin(replacee));
-            UnmodifiableEconomicMap<Node, Node> duplicates = inlineSnippet(replacee, debug, replaceeGraph, replacements);
+            EconomicMap<Node, Node> duplicates = inlineSnippet(replacee, debug, replaceeGraph, replacements);
 
             // Re-wire the control flow graph around the replacee
             FixedNode firstCFGNodeDuplicate = (FixedNode) duplicates.get(firstCFGNode);
@@ -1724,15 +1724,15 @@ public UnmodifiableEconomicMap<Node, Node> instantiate(MetaAccessProvider metaAc
         }
     }
 
-    private UnmodifiableEconomicMap<Node, Node> inlineSnippet(Node replacee, DebugContext debug, StructuredGraph replaceeGraph, EconomicMap<Node, Node> replacements) {
+    private EconomicMap<Node, Node> inlineSnippet(Node replacee, DebugContext debug, StructuredGraph replaceeGraph, EconomicMap<Node, Node> replacements) {
         Mark mark = replaceeGraph.getMark();
         try (InliningLog.UpdateScope scope = replaceeGraph.getInliningLog().openUpdateScope((oldNode, newNode) -> {
             InliningLog log = replaceeGraph.getInliningLog();
             if (oldNode == null) {
                 log.trackNewCallsite(newNode);
             }
         })) {
-            UnmodifiableEconomicMap<Node, Node> duplicates = replaceeGraph.addDuplicates(nodes, snippet, snippet.getNodeCount(), replacements);
+            EconomicMap<Node, Node> duplicates = replaceeGraph.addDuplicates(nodes, snippet, snippet.getNodeCount(), replacements);
             if (scope != null) {
                 replaceeGraph.getInliningLog().addLog(duplicates, snippet.getInliningLog());
             }