exp_aggr.adb (Component_Check): Extend the check that verifies that the…

exp_aggr.adb (Component_Check): Extend the check that verifies that the aggregate has no function calls to...

2016-04-21  Javier Miranda  <miranda@adacore.com>

	* exp_aggr.adb (Component_Check): Extend
	the check that verifies that the aggregate has no function
	calls to handle transformations performed by the frontend.
	(Ultimate_Original_Expression): New subprogram.

From-SVN: r235321

gcc/ada/ChangeLog

+2016-04-21  Javier Miranda  <miranda@adacore.com>
+
+	* exp_aggr.adb (Component_Check): Extend
+	the check that verifies that the aggregate has no function
+	calls to handle transformations performed by the frontend.
+	(Ultimate_Original_Expression): New subprogram.
+
 2016-04-21  Philippe Gil  <gil@adacore.com>
 
 	* krunch.adb (Krunch): Fix krunching of i-java.

gcc/ada/exp_aggr.adb

@@ -564,6 +564,30 @@ package body Exp_Aggr is
       ---------------------
 
       function Component_Check (N : Node_Id; Index : Node_Id) return Boolean is
+
+         function Ultimate_Original_Expression (N : Node_Id) return Node_Id;
+         --  Given a type conversion or an unchecked type conversion N, return
+         --  its innermost original expression.
+
+         ----------------------------------
+         -- Ultimate_Original_Expression --
+         ----------------------------------
+
+         function Ultimate_Original_Expression (N : Node_Id) return Node_Id is
+            Expr : Node_Id := Original_Node (N);
+
+         begin
+            while Nkind_In (Expr, N_Type_Conversion,
+                                  N_Unchecked_Type_Conversion)
+            loop
+               Expr := Original_Node (Expression (Expr));
+            end loop;
+
+            return Expr;
+         end Ultimate_Original_Expression;
+
+         --  Local variables
+
          Expr : Node_Id;
 
       begin
@@ -617,7 +641,10 @@ package body Exp_Aggr is
 
             --  Checks 12: (no function call)
 
-            if Modify_Tree_For_C and then Nkind (Expr) = N_Function_Call then
+            if Modify_Tree_For_C
+              and then
+                Nkind (Ultimate_Original_Expression (Expr)) = N_Function_Call
+            then
                return False;
             end if;