diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 4faf8450abe..7b43b970454 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2009-01-20  Sebastian Pop  <sebastian.pop@amd.com>
+
+	* common.opt (fgraphite, fgraphite-identity): Add comment for 
+	explaining why these options are not documented.
+
 2009-01-20  Sebastian Pop  <sebastian.pop@amd.com>
 
 	* graphite.c (stmt_simple_for_scop_p): Also handle cases when
diff --git a/gcc/common.opt b/gcc/common.opt
index 4ffe1fd0518..2b798ca1557 100644
--- a/gcc/common.opt
+++ b/gcc/common.opt
@@ -551,6 +551,7 @@ Common Report Var(flag_gcse_after_reload) Optimization
 Perform global common subexpression elimination after register allocation
 has finished
 
+; This option is not documented yet as its semantics will change.
 fgraphite
 Common Report Var(flag_graphite)
 Enable in and out of Graphite representation
@@ -567,6 +568,7 @@ floop-block
 Common Report Var(flag_loop_block) Optimization
 Enable Loop Blocking transformation
 
+; This option is not documented as it does not perform any useful optimization.
 fgraphite-identity
 Common Report Var(flag_graphite_identity) Optimization
 Enable Graphite Identity transformation