[multiple changes]

2015-03-13  Gary Dismukes  <dismukes@adacore.com>

	* style.adb (Missing_Overriding): Apply the
	Comes_From_Source test to the Original_Node of the subprogram
	node, to handle the case of a null procedure declaration that
	has been rewritten as an empty procedure body.

2015-03-13  Robert Dewar  <dewar@adacore.com>

	* exp_util.ads: Minor fix to comment.
	* sem_ch3.adb (Constrain_Index): Correct pasto from previous
	change.

From-SVN: r221419

gcc/ada/ChangeLog

+2015-03-13  Gary Dismukes  <dismukes@adacore.com>
+
+	* style.adb (Missing_Overriding): Apply the
+	Comes_From_Source test to the Original_Node of the subprogram
+	node, to handle the case of a null procedure declaration that
+	has been rewritten as an empty procedure body.
+
+2015-03-13  Robert Dewar  <dewar@adacore.com>
+
+	* exp_util.ads: Minor fix to comment.
+	* sem_ch3.adb (Constrain_Index): Correct pasto from previous
+	change.
+
 2015-03-13  Robert Dewar  <dewar@adacore.com>
 
 	* exp_util.ads, exp_util.adb (Force_Evaluation): Add Related_Id and

gcc/ada/exp_util.ads

@@ -881,7 +881,7 @@ package Exp_Util is
    --  Is_Low_Bound and Is_High_Bound specify whether the expression to check
    --  is the low or the high bound of a range. These three optional arguments
    --  signal Remove_Side_Effects to create an external symbol of the form
-   --  Chars (Related_Id)_FIRST/_LAST. If Related_Id is set, the exactly one
+   --  Chars (Related_Id)_FIRST/_LAST. If Related_Id is set, then exactly one
    --  of the Is_xxx_Bound flags must be set. For use of these parameters see
    --  the warning in the body of Sem_Ch3.Process_Range_Expr_In_Decl.
 

gcc/ada/sem_ch3.adb

@@ -13172,6 +13172,10 @@ package body Sem_Ch3 is
       T      : constant Entity_Id := Etype (Index);
 
    begin
+      Def_Id :=
+        Create_Itype (E_Void, Related_Nod, Related_Id, Suffix, Suffix_Index);
+      Set_Etype (Def_Id, Base_Type (T));
+
       if Nkind (S) = N_Range
         or else
           (Nkind (S) = N_Attribute_Reference
@@ -13221,9 +13225,9 @@ package body Sem_Ch3 is
 
          if Expander_Active or GNATprove_Mode then
             Force_Evaluation
-              (Low_Bound (R),  Related_Id => Related_Id, Is_Low_Bound => True);
+              (Low_Bound (R),  Related_Id => Def_Id, Is_Low_Bound  => True);
             Force_Evaluation
-              (High_Bound (R), Related_Id => Related_Id, Is_Low_Bound => True);
+              (High_Bound (R), Related_Id => Def_Id, Is_High_Bound => True);
          end if;
 
       elsif Nkind (S) = N_Discriminant_Association then
@@ -13263,10 +13267,7 @@ package body Sem_Ch3 is
          end if;
       end if;
 
-      Def_Id :=
-        Create_Itype (E_Void, Related_Nod, Related_Id, Suffix, Suffix_Index);
-
-      Set_Etype (Def_Id, Base_Type (T));
+      --  Complete construction of the Itype
 
       if Is_Modular_Integer_Type (T) then
          Set_Ekind (Def_Id, E_Modular_Integer_Subtype);
@@ -13382,7 +13383,6 @@ package body Sem_Ch3 is
       else
          pragma Assert (No (C));
          Set_Scalar_Range (Def_Id, Scalar_Range (T));
-
       end if;
 
       Set_Discrete_RM_Size (Def_Id);
@@ -20188,9 +20188,9 @@ package body Sem_Ch3 is
                  (Hi, Related_Id => Subtyp, Is_High_Bound => True);
             end if;
 
-            --  We use a flag here instead of suppressing checks on the
-            --  type because the type we check against isn't necessarily
-            --  the place where we put the check.
+            --  We use a flag here instead of suppressing checks on the type
+            --  because the type we check against isn't necessarily the place
+            --  where we put the check.
 
             if not R_Check_Off then
                R_Checks := Get_Range_Checks (R, T);

gcc/ada/style.adb

@@ -6,7 +6,7 @@
 --                                                                          --
 --                                 B o d y                                  --
 --                                                                          --
---          Copyright (C) 1992-2013, Free Software Foundation, Inc.         --
+--          Copyright (C) 1992-2015, Free Software Foundation, Inc.         --
 --                                                                          --
 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
 -- terms of the  GNU General Public License as published  by the Free Soft- --
@@ -264,10 +264,13 @@ package body Style is
    begin
       --  Perform the check on source subprograms and on subprogram instances,
       --  because these can be primitives of untagged types. Note that such
-      --  indicators were introduced in Ada 2005.
+      --  indicators were introduced in Ada 2005. We apply Comes_From_Source
+      --  to Original_Node to catch the case of a procedure body declared with
+      --  "is null" that has been rewritten as a normal empty body.
 
       if Style_Check_Missing_Overriding
-        and then (Comes_From_Source (N) or else Is_Generic_Instance (E))
+        and then (Comes_From_Source (Original_Node (N))
+                   or else Is_Generic_Instance (E))
         and then Ada_Version_Explicit >= Ada_2005
       then
          --  If the subprogram is an instantiation,  its declaration appears