507   void do_UnsafePrefetchRead (UnsafePrefetchRead*  x);

   507   void do_UnsafePrefetchRead (UnsafePrefetchRead*  x);

   508   void do_UnsafePrefetchWrite(UnsafePrefetchWrite* x);

   508   void do_UnsafePrefetchWrite(UnsafePrefetchWrite* x);

   509   void do_ProfileCall    (ProfileCall*     x);

   509   void do_ProfileCall    (ProfileCall*     x);

   510   void do_ProfileInvoke  (ProfileInvoke*   x);

   510   void do_ProfileInvoke  (ProfileInvoke*   x);

   511   void do_RuntimeCall    (RuntimeCall*     x);

   511   void do_RuntimeCall    (RuntimeCall*     x);

   512 };

   513 };

   513 

   514 

   514 

   515 

   515 // Because of a static contained within (for the purpose of iteration

   516 // Because of a static contained within (for the purpose of iteration

   516 // over instructions), it is only valid to have one of these active at

   517 // over instructions), it is only valid to have one of these active at

   676 void NullCheckVisitor::do_UnsafePrefetchRead (UnsafePrefetchRead*  x) {}

   677 void NullCheckVisitor::do_UnsafePrefetchRead (UnsafePrefetchRead*  x) {}

   677 void NullCheckVisitor::do_UnsafePrefetchWrite(UnsafePrefetchWrite* x) {}

   678 void NullCheckVisitor::do_UnsafePrefetchWrite(UnsafePrefetchWrite* x) {}

   678 void NullCheckVisitor::do_ProfileCall    (ProfileCall*     x) { nce()->clear_last_explicit_null_check(); }

   679 void NullCheckVisitor::do_ProfileCall    (ProfileCall*     x) { nce()->clear_last_explicit_null_check(); }

   679 void NullCheckVisitor::do_ProfileInvoke  (ProfileInvoke*   x) {}

   680 void NullCheckVisitor::do_ProfileInvoke  (ProfileInvoke*   x) {}

   680 void NullCheckVisitor::do_RuntimeCall    (RuntimeCall*     x) {}

   681 void NullCheckVisitor::do_RuntimeCall    (RuntimeCall*     x) {}

   681 

   683 

   682 

   684 

   683 void NullCheckEliminator::visit(Value* p) {

   685 void NullCheckEliminator::visit(Value* p) {

   684   assert(*p != NULL, "should not find NULL instructions");

   686   assert(*p != NULL, "should not find NULL instructions");

   685   if (visitable(*p)) {

   687   if (visitable(*p)) {