src/share/vm/gc_implementation/g1/heapRegionSet.cpp

rev 7793 : 8073315: Enable gcc -Wtype-limits and fix upcoming issues.
Summary: Relevant fixes in blockOffsetTable.cpp, os_linux.cpp, parCardTableModRefBS.cpp.

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2011, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2011, 2015, Oracle and/or its affiliates. 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
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.

@@ -54,12 +54,11 @@
   // for the verification calls. If we do verification without the
   // appropriate locks and the set changes underneath our feet
   // verification might fail and send us on a wild goose chase.
   check_mt_safety();
 
-  guarantee(( is_empty() && length() == 0 && total_capacity_bytes() == 0) ||
-            (!is_empty() && length() >= 0 && total_capacity_bytes() >= 0),
+  guarantee((is_empty() && length() == 0 && total_capacity_bytes() == 0) || !is_empty(),
             hrs_ext_msg(this, "invariant"));
 }
 
 void HeapRegionSetBase::verify_start() {
   // See comment in verify() about MT safety and verification.