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diff src/share/vm/gc_implementation/concurrentMarkSweep/promotionInfo.cpp @ 1546:a00b51b2dda4

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6948539: CMS+UseCompressedOops: placement of cms_free bit interferes with promoted object link Summary: When using compressed oops, use compressed promoted pointers in b63:b31 of the mark word, so as not to interfere with the CMS "freeness bit" at b7. Updated mark-word layout documentation. Reviewed-by: minqi, poonam, jmasa, coleenp
author ysr
date Mon, 17 May 2010 00:47:28 -0700
parents a8127dc669ba
children c18cbe5936b8
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line diff
--- a/src/share/vm/gc_implementation/concurrentMarkSweep/promotionInfo.cpp	Fri May 14 10:28:46 2010 -0700
+++ b/src/share/vm/gc_implementation/concurrentMarkSweep/promotionInfo.cpp	Mon May 17 00:47:28 2010 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright 2001-2009 Sun Microsystems, Inc.  All Rights Reserved.
+ * Copyright 2010 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