diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 9878490b163d..c33a3ad7ce96 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2012-10-22  Richard Biener  <rguenther@suse.de>
+
+	PR lto/55021
+	* tree-streamer-in.c (unpack_ts_int_cst_value_fields): Remove
+	bogus truncations.
+
 2012-10-22  Uros Bizjak  <ubizjak@gmail.com>
 
 	* config/i386/i386.c (memory_address_length): Assert that non-null
diff --git a/gcc/tree-streamer-in.c b/gcc/tree-streamer-in.c
index f573659edd1a..57c86265767b 100644
--- a/gcc/tree-streamer-in.c
+++ b/gcc/tree-streamer-in.c
@@ -146,8 +146,8 @@ unpack_ts_base_value_fields (struct bitpack_d *bp, tree expr)
 static void
 unpack_ts_int_cst_value_fields (struct bitpack_d *bp, tree expr)
 {
-  TREE_INT_CST_LOW (expr) = (unsigned) bp_unpack_var_len_unsigned (bp);
-  TREE_INT_CST_HIGH (expr) = (unsigned) bp_unpack_var_len_int (bp);
+  TREE_INT_CST_LOW (expr) = bp_unpack_var_len_unsigned (bp);
+  TREE_INT_CST_HIGH (expr) = bp_unpack_var_len_int (bp);
 }