# HG changeset patch
# User Gilles Duboscq <duboscq@ssw.jku.at>
# Date 1337944903 -7200
# Node ID 78a6f682326fe5c28f58337ed71821de4ce3bc12
# Parent  fafab5f0507d92bbb7cba7b62d29eabc7c912ee6
Canonicalize away ValueAnchors that only anchor a begin node

diff -r fafab5f0507d -r 78a6f682326f graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/extended/ValueAnchorNode.java
--- a/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/extended/ValueAnchorNode.java	Fri May 25 12:16:23 2012 +0200
+++ b/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/extended/ValueAnchorNode.java	Fri May 25 13:21:43 2012 +0200
@@ -22,6 +22,8 @@
  */
 package com.oracle.graal.nodes.extended;
 
+import static com.oracle.graal.graph.iterators.NodePredicates.*;
+
 import com.oracle.graal.graph.*;
 import com.oracle.graal.nodes.*;
 import com.oracle.graal.nodes.calc.*;
@@ -60,7 +62,7 @@
             }
             return null;
         }
-        for (Node node : dependencies().nonNull()) {
+        for (Node node : dependencies().nonNull().and(isNotA(BeginNode.class))) {
             if (node instanceof ConstantNode) {
                 continue;
             }