diff -r fa58671dde31 -r 6879f93d268d hotspot/src/share/vm/opto/block.hpp
--- a/hotspot/src/share/vm/opto/block.hpp	Wed Aug 10 14:06:57 2011 -0700
+++ b/hotspot/src/share/vm/opto/block.hpp	Thu Aug 11 12:08:11 2011 -0700
@@ -329,10 +329,10 @@
 
 #ifndef PRODUCT
   // Debugging print of basic block
-  void dump_bidx(const Block* orig) const;
-  void dump_pred(const Block_Array *bbs, Block* orig) const;
-  void dump_head( const Block_Array *bbs ) const;
-  void dump( ) const;
+  void dump_bidx(const Block* orig, outputStream* st = tty) const;
+  void dump_pred(const Block_Array *bbs, Block* orig, outputStream* st = tty) const;
+  void dump_head( const Block_Array *bbs, outputStream* st = tty ) const;
+  void dump() const;
   void dump( const Block_Array *bbs ) const;
 #endif
 };