diff -r 169aeeac1fba -r a9451177555c src/cpu/mips/vm/macroAssembler_mips.cpp
--- a/src/cpu/mips/vm/macroAssembler_mips.cpp	Wed Feb 05 00:26:59 2020 +0800
+++ b/src/cpu/mips/vm/macroAssembler_mips.cpp	Thu Feb 13 19:16:02 2020 +0800
@@ -1,6 +1,6 @@
 /*
  * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
- * Copyright (c) 2017, 2019, Loongson Technology. All rights reserved.
+ * Copyright (c) 2017, 2020, Loongson Technology. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -466,7 +466,7 @@
 
   li(tmp_reg1, counter_addr);
   bind(again);
-  if(UseSyncLevel >= 3000 || UseSyncLevel < 2000) sync();
+  if (UseSyncLevel >= 10000 || UseSyncLevel == 1000 || UseSyncLevel == 4000) sync();
   ll(tmp_reg2, tmp_reg1, 0);
   addi(tmp_reg2, tmp_reg2, inc);
   sc(tmp_reg2, tmp_reg1, 0);
@@ -2517,7 +2517,7 @@
 
   bind(again);
 
-  if(UseSyncLevel >= 3000 || UseSyncLevel < 2000) sync();
+  if (UseSyncLevel >= 10000 || UseSyncLevel == 1000 || UseSyncLevel == 4000) sync();
   ll(AT, dest);
   bne(AT, c_reg, nequal);
   delayed()->nop();
@@ -2543,7 +2543,7 @@
   Label done, again, nequal;
 
   bind(again);
-  if(UseSyncLevel >= 3000 || UseSyncLevel < 2000) sync();
+  if (UseSyncLevel >= 10000 || UseSyncLevel == 1000 || UseSyncLevel == 4000) sync();
 #ifdef _LP64
   lld(AT, dest);
 #else
@@ -2589,7 +2589,7 @@
 
   bind(again);
 
-  if(UseSyncLevel >= 3000 || UseSyncLevel < 2000) sync();
+  if (UseSyncLevel >= 10000 || UseSyncLevel == 1000 || UseSyncLevel == 4000) sync();
   lld(AT, dest);
   bne(AT, c_reg, nequal);
   delayed()->nop();