diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 0211e518c0f399be79fe26657c36f33901a81f03..5c07681ecc61577a266ecd4123c9d73cb6143a1c 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,10 @@
 2004-06-17  Ben Elliston  <bje@au.ibm.com>
 
+	* tree-alias-common.c: Add whitespace.
+	* tree-inline.c: Correct comment about this file's purpose.
+	* tree-optimize.c: Likewise.
+	* tree-tailcall.c: Likewise.
+	
 	* tree-alias-ander.h: Add standard top-of-file comment.
 	* tree-alias-common.h: Likewise.
 	* tree-alias-type.h: Likewise.
diff --git a/gcc/tree-alias-common.c b/gcc/tree-alias-common.c
index f13b7df78c69cb6dd0e787f8370e6e366d56d4bc..33ef6d34db3d25f5bf1f230faa600086cd77b72d 100644
--- a/gcc/tree-alias-common.c
+++ b/gcc/tree-alias-common.c
@@ -18,6 +18,7 @@ You should have received a copy of the GNU General Public License
 along with GCC; if not, write to the Free Software
 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
+
 #include "config.h"
 #include "system.h"
 #include "coretypes.h"
@@ -26,10 +27,12 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 #include "tree-alias-type.h"
 #include "bitmap.h"
 #include "tree-alias-common.h"
+
 /* If we have andersen's points-to analysis, include it.  */
 #ifdef HAVE_BANSHEE
 #include "tree-alias-ander.h"
 #endif
+
 #include "flags.h"
 #include "rtl.h"
 #include "tm_p.h"
diff --git a/gcc/tree-inline.c b/gcc/tree-inline.c
index 0ed3621e86961355c92a0c2da15ceee6667c354c..d5ceac6d6c6f926fd44ebaccae81b76a9d4e1d45 100644
--- a/gcc/tree-inline.c
+++ b/gcc/tree-inline.c
@@ -1,4 +1,4 @@
-/* Control and data flow functions for trees.
+/* Tree inlining.
    Copyright 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
    Contributed by Alexandre Oliva <aoliva@redhat.com>
 
diff --git a/gcc/tree-optimize.c b/gcc/tree-optimize.c
index ad82644bd9296583ad164c3c84c97c2328d7bb4b..16ddd8fc368b5fc2f5c8db028a0ecf6abbd1bee3 100644
--- a/gcc/tree-optimize.c
+++ b/gcc/tree-optimize.c
@@ -1,4 +1,4 @@
-/* Control and data flow functions for trees.
+/* Top-level control of tree optimizations.
    Copyright 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
    Contributed by Diego Novillo <dnovillo@redhat.com>
 
diff --git a/gcc/tree-tailcall.c b/gcc/tree-tailcall.c
index 379594e9321df51108783dd99bd3ff322c9bb88c..622c4e9ac2b20bbacb3f6db615b5ab94692c9c86 100644
--- a/gcc/tree-tailcall.c
+++ b/gcc/tree-tailcall.c
@@ -1,4 +1,4 @@
-/* Tail calls optimization on trees.
+/* Tail call optimization on trees.
    Copyright (C) 2003 Free Software Foundation, Inc.
 
 This file is part of GCC.