--- old/src/share/vm/c1/c1_Optimizer.cpp 2012-02-15 17:39:24.931791788 -0500 +++ new/src/share/vm/c1/c1_Optimizer.cpp 2012-02-15 17:39:23.459403631 -0500 @@ -509,6 +509,7 @@ void do_ProfileCall (ProfileCall* x); void do_ProfileInvoke (ProfileInvoke* x); void do_RuntimeCall (RuntimeCall* x); + void do_MemBar (MemBar* x); }; @@ -678,6 +679,7 @@ void NullCheckVisitor::do_ProfileCall (ProfileCall* x) { nce()->clear_last_explicit_null_check(); } void NullCheckVisitor::do_ProfileInvoke (ProfileInvoke* x) {} void NullCheckVisitor::do_RuntimeCall (RuntimeCall* x) {} +void NullCheckVisitor::do_MemBar (MemBar* x) {} void NullCheckEliminator::visit(Value* p) {