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diff --git a/ChangeLog b/ChangeLog
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+++ b/ChangeLog
@@ -1,4 +1,10 @@
 2012-05-03  Andreas Jaeger  <aj@suse.de>
+
+	* malloc/mcheck.c (mcheck): Add barrier so that malloc/free pair
+	does not get optimized out.
+	(malloc_opt_barrier): New.
+
+2012-05-03  Andreas Jaeger  <aj@suse.de>
 	    Roland McGrath <roland@hack.frob.com>
 
         * Makerules (.PRECIOUS): Add %.symlist pattern to prevent