--- a/src/share/vm/c1/c1_Instruction.hpp	Fri May 25 11:39:13 2012 -0700
+++ b/src/share/vm/c1/c1_Instruction.hpp	Wed May 30 12:17:07 2012 -0700
@@ -302,8 +302,6 @@
 
   void update_exception_state(ValueStack* state);
 
-  bool has_printable_bci() const                 { return NOT_PRODUCT(_printable_bci != -99) PRODUCT_ONLY(false); }
-
  protected:
   void set_type(ValueType* type) {
     assert(type != NULL, "type must exist");
@@ -392,8 +390,9 @@
   // accessors
   int id() const                                 { return _id; }
 #ifndef PRODUCT
+  bool has_printable_bci() const                 { return _printable_bci != -99; }
   int printable_bci() const                      { assert(has_printable_bci(), "_printable_bci should have been set"); return _printable_bci; }
-  void set_printable_bci(int bci)                { NOT_PRODUCT(_printable_bci = bci;) }
+  void set_printable_bci(int bci)                { _printable_bci = bci; }
 #endif
   int use_count() const                          { return _use_count; }
   int pin_state() const                          { return _pin_state; }
@@ -576,6 +575,7 @@
   , _block(b)
   , _index(index)
   {
+    NOT_PRODUCT(set_printable_bci(Value(b)->printable_bci()));
     if (type->is_illegal()) {
       make_illegal();
     }
@@ -631,7 +631,9 @@
     : Instruction(type)
     , _java_index(index)
     , _declared_type(declared)
-  {}
+  {
+    NOT_PRODUCT(set_printable_bci(-1));
+  }
 
   // accessors
   int java_index() const                         { return _java_index; }