Mercurial > hg > graal-jvmci-8

diff src/share/vm/gc_implementation/parallelScavenge/cardTableExtension.cpp @ 356:1ee8caae33af

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Merge
author tonyp
date Thu, 21 Aug 2008 23:36:31 -0400
parents 850fdf70db2b
children 98cb887364d3
line wrap: on
line diff
--- a/src/share/vm/gc_implementation/parallelScavenge/cardTableExtension.cpp	Wed Aug 06 11:57:31 2008 -0400
+++ b/src/share/vm/gc_implementation/parallelScavenge/cardTableExtension.cpp	Thu Aug 21 23:36:31 2008 -0400
@@ -1,5 +1,5 @@
 /*
- * Copyright 2001-2006 Sun Microsystems, Inc.  All Rights Reserved.
+ * Copyright 2001-2008 Sun Microsystems, Inc.  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
@@ -666,9 +666,9 @@
 
     HeapWord* new_end_for_commit =
       MIN2(cur_committed.end(), _guard_region.start());
-    MemRegion new_committed =
-      MemRegion(new_start_aligned, new_end_for_commit);
-    if(!new_committed.is_empty()) {
+    if(new_start_aligned < new_end_for_commit) {
+      MemRegion new_committed =
+        MemRegion(new_start_aligned, new_end_for_commit);
       if (!os::commit_memory((char*)new_committed.start(),
                              new_committed.byte_size())) {
         vm_exit_out_of_memory(new_committed.byte_size(),