--- a/graal/com.oracle.graal.word/src/com/oracle/graal/word/phases/WordTypeVerificationPhase.java	Wed Jan 28 01:01:54 2015 +0100
+++ b/graal/com.oracle.graal.word/src/com/oracle/graal/word/phases/WordTypeVerificationPhase.java	Wed Jan 28 01:04:20 2015 +0100
@@ -86,7 +86,7 @@
                 } else if (usage instanceof ArrayLengthNode) {
                     verify(!isWord(node) || ((ArrayLengthNode) usage).array() != node, node, usage, "cannot get array length from word value");
                 } else if (usage instanceof ValuePhiNode) {
-                    if (!(node instanceof MergeNode)) {
+                    if (!(node instanceof AbstractMergeNode)) {
                         ValuePhiNode phi = (ValuePhiNode) usage;
                         for (ValueNode input : phi.values()) {
                             verify(isWord(node) == isWord(input), node, input, "cannot merge word and non-word values");