diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index ff76d9ca3e4..195f96d3b2d 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,10 @@
+2010-11-19  Richard Guenther  <rguenther@suse.de>
+
+	PR lto/45789
+	* lto-streamer-out.c (lto_output_ts_common_tree_pointers): For
+	IDENTIFIERs do not stream TREE_TYPE.
+	* lto-streamer-in.c (lto_input_ts_common_tree_pointers): Likewise.
+
 2010-11-19  Christian Borntraeger  <borntraeger@de.ibm.com>
 
 	* config/s390/s390.c (s390_function_arg_integer): Handle NULLPTR_TYPE.
diff --git a/gcc/lto-streamer-in.c b/gcc/lto-streamer-in.c
index 50352e896a2..cf1b0118d76 100644
--- a/gcc/lto-streamer-in.c
+++ b/gcc/lto-streamer-in.c
@@ -1874,7 +1874,8 @@ static void
 lto_input_ts_common_tree_pointers (struct lto_input_block *ib,
 				   struct data_in *data_in, tree expr)
 {
-  TREE_TYPE (expr) = lto_input_tree (ib, data_in);
+  if (TREE_CODE (expr) != IDENTIFIER_NODE)
+    TREE_TYPE (expr) = lto_input_tree (ib, data_in);
 }
 
 
diff --git a/gcc/lto-streamer-out.c b/gcc/lto-streamer-out.c
index 2a4d985c9b9..20e39913044 100644
--- a/gcc/lto-streamer-out.c
+++ b/gcc/lto-streamer-out.c
@@ -793,7 +793,8 @@ static void
 lto_output_ts_common_tree_pointers (struct output_block *ob, tree expr,
 				    bool ref_p)
 {
-  lto_output_tree_or_ref (ob, TREE_TYPE (expr), ref_p);
+  if (TREE_CODE (expr) != IDENTIFIER_NODE)
+    lto_output_tree_or_ref (ob, TREE_TYPE (expr), ref_p);
 }