Mercurial > hg > truffle

changeset 16554:f3c1b2d999da

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clone nodes without adding to a graph
author Lukas Stadler <lukas.stadler@oracle.com>
date Thu, 17 Jul 2014 14:29:05 +0200
parents c9d3d0964adb
children 29c5fd119afa
files graal/com.oracle.graal.graph/src/com/oracle/graal/graph/Node.java graal/com.oracle.graal.graph/src/com/oracle/graal/graph/NodeClass.java
diffstat 2 files changed, 16 insertions(+), 8 deletions(-) [+]
line wrap: on
line diff
--- a/graal/com.oracle.graal.graph/src/com/oracle/graal/graph/Node.java	Thu Jul 17 14:28:35 2014 +0200
+++ b/graal/com.oracle.graal.graph/src/com/oracle/graal/graph/Node.java	Thu Jul 17 14:29:05 2014 +0200
@@ -806,12 +806,18 @@
     }
 
     public final Node copyWithInputs() {
-        Node newNode = clone(graph);
+        return copyWithInputs(true);
+    }
+
+    public final Node copyWithInputs(boolean addToGraph) {
+        Node newNode = clone(addToGraph ? graph : null);
         NodeClass clazz = getNodeClass();
         clazz.copyInputs(this, newNode);
-        for (Node input : inputs()) {
-            if (input.recordsUsages()) {
-                input.addUsage(newNode);
+        if (addToGraph) {
+            for (Node input : inputs()) {
+                if (input.recordsUsages()) {
+                    input.addUsage(newNode);
+                }
             }
         }
         return newNode;
@@ -834,7 +840,7 @@
 
     final Node clone(Graph into, boolean clearInputsAndSuccessors) {
         NodeClass nodeClass = getNodeClass();
-        if (nodeClass.valueNumberable() && nodeClass.isLeafNode()) {
+        if (into != null && nodeClass.valueNumberable() && nodeClass.isLeafNode()) {
             Node otherNode = into.findNodeInCache(this);
             if (otherNode != null) {
                 return otherNode;
@@ -854,13 +860,15 @@
         newNode.graph = into;
         newNode.typeCacheNext = null;
         newNode.id = INITIAL_ID;
-        into.register(newNode);
+        if (into != null) {
+            into.register(newNode);
+        }
         newNode.usage0 = null;
         newNode.usage1 = null;
         newNode.extraUsages = NO_NODES;
         newNode.predecessor = null;
 
-        if (nodeClass.valueNumberable() && nodeClass.isLeafNode()) {
+        if (into != null && nodeClass.valueNumberable() && nodeClass.isLeafNode()) {
             into.putNodeIntoCache(newNode);
         }
         newNode.afterClone(this);
--- a/graal/com.oracle.graal.graph/src/com/oracle/graal/graph/NodeClass.java	Thu Jul 17 14:28:35 2014 +0200
+++ b/graal/com.oracle.graal.graph/src/com/oracle/graal/graph/NodeClass.java	Thu Jul 17 14:29:05 2014 +0200
@@ -397,7 +397,7 @@
             node.getNodeClass().set(node, this, value);
         }
 
-        void initialize(Node node, Node value) {
+        public void initialize(Node node, Node value) {
             node.getNodeClass().initializePosition(node, this, value);
         }