src/hotspot/share/c1/c1_InstructionPrinter.cpp

@@ -916,11 +916,10 @@
   }
   output()->put(')');
 }
 
 void InstructionPrinter::do_MemBar(MemBar* x) {
-  if (os::is_MP()) {
     LIR_Code code = x->code();
     switch (code) {
       case lir_membar_acquire   : output()->print("membar_acquire"); break;
       case lir_membar_release   : output()->print("membar_release"); break;
       case lir_membar           : output()->print("membar"); break;

@@ -928,9 +927,8 @@
       case lir_membar_storestore: output()->print("membar_storestore"); break;
       case lir_membar_loadstore : output()->print("membar_loadstore"); break;
       case lir_membar_storeload : output()->print("membar_storeload"); break;
       default                   : ShouldNotReachHere(); break;
     }
-  }
 }
 
 #endif // PRODUCT