ada: Simplify Constrain_Array

Before this patch, Constrain_Array had a feature where it could be
passed Empty for the first actual and would then create an Itype itself.
There was only one use of this feature and it was unnecessary, so this
patch removes it.

gcc/ada/ChangeLog:

	* sem_ch3.adb (Constrain_Array): Simplify.
	(Process_Subtype): Adjust.

diff --git a/gcc/ada/sem_ch3.adb b/gcc/ada/sem_ch3.adb
index 823cc34e22b621bdb474549d15dd639d8af6651a..45f7dc90aa45058fc79633fb6946ddcaf3e0f402 100644 (file)
--- a/gcc/ada/sem_ch3.adb
+++ b/gcc/ada/sem_ch3.adb
@@ -382,7 +382,7 @@ package body Sem_Ch3 is
    --  created in the procedure and attached to Related_Nod.
 
    procedure Constrain_Array
-     (Def_Id      : in out Entity_Id;
+     (Def_Id      : Entity_Id;
       SI          : Node_Id;
       Related_Nod : Node_Id;
       Related_Id  : Entity_Id;
@@ -13980,7 +13980,7 @@ package body Sem_Ch3 is
    ---------------------
 
    procedure Constrain_Array
-     (Def_Id      : in out Entity_Id;
+     (Def_Id      : Entity_Id;
       SI          : Node_Id;
       Related_Nod : Node_Id;
       Related_Id  : Entity_Id;
@@ -14080,14 +14080,7 @@ package body Sem_Ch3 is
          end if;
       end if;
 
-      if No (Def_Id) then
-         Def_Id :=
-           Create_Itype (E_Array_Subtype, Related_Nod, Related_Id, Suffix);
-         Set_Parent (Def_Id, Related_Nod);
-
-      else
-         Mutate_Ekind (Def_Id, E_Array_Subtype);
-      end if;
+      Mutate_Ekind (Def_Id, E_Array_Subtype);
 
       Set_Size_Info      (Def_Id,                (T));
       Set_First_Rep_Item (Def_Id, First_Rep_Item (T));
@@ -22664,8 +22657,7 @@ package body Sem_Ch3 is
          --  has not yet been called to create Def_Id.
 
          else
-            if Is_Array_Type (Subtype_Mark_Id)
-              or else Is_Concurrent_Type (Subtype_Mark_Id)
+            if Is_Concurrent_Type (Subtype_Mark_Id)
               or else Is_Access_Type (Subtype_Mark_Id)
             then
                Def_Id := Empty;