diff --git a/gcc/ada/ChangeLog b/gcc/ada/ChangeLog
index 9fe36adafe51..ea4f6bc12cf9 100644
--- a/gcc/ada/ChangeLog
+++ b/gcc/ada/ChangeLog
@@ -1,3 +1,14 @@
+2017-01-13  Gary Dismukes  <dismukes@adacore.com>
+
+	* exp_util.adb: Minor reformatting.
+
+2017-01-13  Yannick Moy  <moy@adacore.com>
+
+	* exp_spark.adb: Code cleanup.
+	* sem_ch9.adb (Analyze_Delay_Until): Resolve
+	expression so that calls are identified as such inside delay
+	until.
+
 2017-01-13  Ed Schonberg  <schonberg@adacore.com>
 
 	* exp_util.adb (Insert_Actions): Handle Iterated_Component_Association.
diff --git a/gcc/ada/exp_spark.adb b/gcc/ada/exp_spark.adb
index 10461900321c..6b355aa99c09 100644
--- a/gcc/ada/exp_spark.adb
+++ b/gcc/ada/exp_spark.adb
@@ -124,36 +124,28 @@ package body Exp_SPARK is
       Aname   : constant Name_Id      := Attribute_Name (N);
       Attr_Id : constant Attribute_Id := Get_Attribute_Id (Aname);
       Loc     : constant Source_Ptr   := Sloc (N);
-
-      Call : Node_Id;
-      Expr : Node_Id;
+      Typ     : constant Entity_Id    := Etype (N);
+      Expr    : Node_Id;
 
    begin
       if Attr_Id = Attribute_To_Address then
 
-         --  Extract argument to later reanalyze it in the new context
+         --  Extract and convert argument to expected type for call
 
-         Expr := First (Expressions (N));
-         Nlists.Remove (Expr);
-         Set_Etype    (Expr, Empty);
-         Set_Analyzed (Expr, False);
+         Expr :=
+           Make_Type_Conversion (Loc,
+             Subtype_Mark =>
+               New_Occurrence_Of (RTE (RE_Integer_Address), Loc),
+             Expression   => Relocate_Node (First (Expressions (N))));
 
-         --  Create the call and insert it in the tree
+         --  Replace attribute reference with call
 
-         Call :=
+         Rewrite (N,
            Make_Function_Call (Loc,
              Name                   =>
                New_Occurrence_Of (RTE (RE_To_Address), Loc),
-             Parameter_Associations => New_List (
-               Expr));
-
-         Set_Etype (Call, Etype (N));
-         Rewrite (N, Call);
-
-         --  Reanalyze argument and call in the new context
-
-         Analyze_And_Resolve (Expr, Rtsfind.RTE (Rtsfind.RE_Integer_Address));
-         Analyze_And_Resolve (N, Etype (N));
+             Parameter_Associations => New_List (Expr)));
+         Analyze_And_Resolve (N, Typ);
       end if;
    end Expand_SPARK_Attribute_Reference;
 
diff --git a/gcc/ada/exp_util.adb b/gcc/ada/exp_util.adb
index 8ab95d0db5ad..e8654bc09547 100644
--- a/gcc/ada/exp_util.adb
+++ b/gcc/ada/exp_util.adb
@@ -5709,10 +5709,10 @@ package body Exp_Util is
             --  an association that will generate a loop, its Loop_Actions
             --  attribute is already initialized (see exp_aggr.adb).
 
-            --  The list of loop_actions can in turn generate additional ones,
+            --  The list of Loop_Actions can in turn generate additional ones,
             --  that are inserted before the associated node. If the associated
             --  node is outside the aggregate, the new actions are collected
-            --  at the end of the loop actions, to respect the order in which
+            --  at the end of the Loop_Actions, to respect the order in which
             --  they are to be elaborated.
 
             when N_Component_Association
@@ -5731,7 +5731,7 @@ package body Exp_Util is
 
                      begin
                         --  Check whether these actions were generated by a
-                        --  declaration that is part of the loop_ actions for
+                        --  declaration that is part of the Loop_Actions for
                         --  the component_association.
 
                         Decl := Assoc_Node;
diff --git a/gcc/ada/sem_ch9.adb b/gcc/ada/sem_ch9.adb
index 7eae247c1825..1c8145497434 100644
--- a/gcc/ada/sem_ch9.adb
+++ b/gcc/ada/sem_ch9.adb
@@ -1171,7 +1171,7 @@ package body Sem_Ch9 is
       Check_SPARK_05_Restriction ("delay statement is not allowed", N);
       Check_Restriction (No_Delay, N);
       Check_Potentially_Blocking_Operation (N);
-      Analyze (E);
+      Analyze_And_Resolve (E);
       Typ := First_Subtype (Etype (E));
 
       if not Is_RTE (Typ, RO_CA_Time) and then