tree-predcom.c (combine_chains): Return NULL, not false.

ChangeLog

	* tree-predcom.c (combine_chains): Return NULL, not false.

From-SVN: r156191

gcc/ChangeLog

+2010-01-23  Toon Moene  <toon@moene.org>
+
+	* tree-predcom.c (combine_chains): Return NULL, not false.
+
 2010-01-23  Joern Rennecke  <amylaar@spamcop.net>
 
 	* tree-loop-distribution.c (distribute_loop): Fix declaration and

gcc/tree-predcom.c

@@ -2277,7 +2277,7 @@ combine_chains (chain_p ch1, chain_p ch2)
   tree rslt_type = NULL_TREE;
 
   if (ch1 == ch2)
-    return false;
+    return NULL;
   if (ch1->length != ch2->length)
     return NULL;