diff -r fdc57b6d7a22 dlight.perfan/src/org/netbeans/modules/dlight/perfan/stack/impl/FunctionCallImpl.java
--- a/dlight.perfan/src/org/netbeans/modules/dlight/perfan/stack/impl/FunctionCallImpl.java	Fri Sep 23 16:01:01 2011 +0400
+++ b/dlight.perfan/src/org/netbeans/modules/dlight/perfan/stack/impl/FunctionCallImpl.java	Thu Sep 29 17:54:25 2011 +0400
@@ -226,7 +226,11 @@
             }
         }
 
-        FunctionImpl func = new FunctionImpl(m.group(1), m.group(2) != null ? m.group(2).hashCode() : (m.group(1) + lineNumber).hashCode());
+        final long funcRef = m.group(2) != null 
+                ? (m.group(1) + m.group(2)).hashCode() 
+                : (m.group(1) + lineNumber).hashCode();
+        
+        FunctionImpl func = new FunctionImpl(m.group(1), funcRef);
 
         FunctionCallImpl call = new FunctionCallImpl(func, lineNumber, new HashMap<FunctionMetric, Object>());