re PR middle-end/54704 (three-fold increase in compile-time between r191483 and r191569)

libcpp:
	2012-09-25  Dehao Chen  <dehao@google.com>

	PR middle-end/54704
	* line-map.c (location_adhoc_data_hash): Fix the hash function.

From-SVN: r191747

libcpp/ChangeLog

 2012-09-25  Dehao Chen  <dehao@google.com>
 
+	PR middle-end/54704
+	* line-map.c (location_adhoc_data_hash): Fix the hash function.
+
+2012-09-25  Dehao Chen  <dehao@google.com>
+
 	PR middle-end/54645
 	* include/line-map.h (location_adhoc_data): Move location_adhoc_data
 	into GC.

libcpp/line-map.c

@@ -58,7 +58,7 @@ location_adhoc_data_hash (const void *l)
 {
   const struct location_adhoc_data *lb =
       (const struct location_adhoc_data *) l;
-  return (hashval_t) lb->locus + (size_t) &lb->data;
+  return (hashval_t) lb->locus + (size_t) lb->data;
 }
 
 /* Compare function for location_adhoc_data hashtable.  */