src/cpu/ppc/vm/c1_LIRGenerator_ppc.cpp

*** 1351,1361 ****
--- 1351,1365 ----
                      false /* do_load */, false /* patch */, NULL);
        }
      }
    }
  
+   if (support_IRIW_for_not_multiple_copy_atomic_cpu) {
+     __ membar_acquire();
+   } else {
      __ membar();
+   }
  }
  
  
  void LIRGenerator::do_update_CRC32(Intrinsic* x) {
    assert(UseCRC32Intrinsics, "or should not be here");