--- old/src/share/vm/adlc/formssel.cpp	2015-04-14 09:52:57.000000000 +0200
+++ new/src/share/vm/adlc/formssel.cpp	2015-04-14 09:52:57.000000000 +0200
@@ -3392,7 +3392,7 @@
 // Count occurrences of operands names in the leaves of the instruction
 // match rule.
 void MatchNode::count_instr_names( Dict &names ) {
-  if( !this ) return;
+  if( this == NULL ) return;
   if( _lChild ) _lChild->count_instr_names(names);
   if( _rChild ) _rChild->count_instr_names(names);
   if( !_lChild && !_rChild ) {