--- old/src/share/vm/opto/callGenerator.cpp	2013-11-18 21:54:03.656935308 +0100
+++ new/src/share/vm/opto/callGenerator.cpp	2013-11-18 21:54:03.374140256 +0100
@@ -722,7 +722,7 @@
     Node* m = kit.map()->in(i);
     Node* n = slow_map->in(i);
     if (m != n) {
-      const Type* t = gvn.type(m)->meet(gvn.type(n));
+      const Type* t = gvn.type(m)->meet(gvn.type(n), true);
       Node* phi = PhiNode::make(region, m, t);
       phi->set_req(2, n);
       kit.map()->set_req(i, gvn.transform(phi));
@@ -975,7 +975,7 @@
     Node* m = kit.map()->in(i);
     Node* n = slow_map->in(i);
     if (m != n) {
-      const Type* t = gvn.type(m)->meet(gvn.type(n));
+      const Type* t = gvn.type(m)->meet(gvn.type(n), true);
       Node* phi = PhiNode::make(region, m, t);
       phi->set_req(2, n);
       kit.map()->set_req(i, gvn.transform(phi));