858 void InstructionPrinter::do_MemBar(MemBar* x) {

   859   if (os::is_MP()) {

   860     LIR_Code code = x->code();

   861     switch (code) {

   862       case lir_membar_acquire   : output()->print("membar_acquire"); break;

   863       case lir_membar_release   : output()->print("membar_release"); break;

   864       case lir_membar           : output()->print("membar"); break;

   865       case lir_membar_loadload  : output()->print("membar_loadload"); break;

   866       case lir_membar_storestore: output()->print("membar_storestore"); break;

   867       case lir_membar_loadstore : output()->print("membar_loadstore"); break;

   868       case lir_membar_storeload : output()->print("membar_storeload"); break;

   869       default                   : ShouldNotReachHere(); break;

   870     }

   871   }

   872 }

   873