Fix example in header comment in tree-call-cdce.c

2015-04-28  Tom de Vries  <tom@codesourcery.com>

	* tree-call-cdce.c: Fix example in header comment.

From-SVN: r222516

gcc/ChangeLog

+2015-04-28  Tom de Vries  <tom@codesourcery.com>
+
+	* tree-call-cdce.c: Fix example in header comment.
+
 2015-04-28  Richard Biener  <rguenther@suse.de>
 
 	PR tree-optimization/62283

gcc/tree-call-cdce.c

@@ -76,7 +76,7 @@ along with GCC; see the file COPYING3.  If not see
     An actual simple example is :
          log (x);   // Mostly dead call
      ==>
-         if (x < 0)
+         if (x <= 0)
              log (x);
      With this change, call to log (x) is effectively eliminated, as
      in majority of the cases, log won't be called with x out of