1 files changed, 9 insertions, 0 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index b7bb772d266..f513e80408d 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,12 @@
+2012-12-13  Dmitry Antipov  <dmantipov@yandex.ru>
+
+        Minor redisplay optimization when the region length is zero.
+        * xdisp.c (markpos_of_region): New function.
+        (init_iterator): Do not highlight the region of zero length.
+        (redisplay_window): Check whether the region is of non-zero length.
+        (try_cursor_movement): Allow if the region length is zero.
+        (try_window_reusing_current_matrix, try_window_id): Likewise.
+
 2012-12-13  Eli Zaretskii  <eliz@gnu.org>
 
         * search.c (search_buffer): Check the inverse translations of each