[Ada] Einfo: remove obsolete code

2018-08-21  Bob Duff  <duff@adacore.com>

gcc/ada

	* einfo.ads, einfo.adb (Private_View, Shadow_Entities): Remove
	obsolete code.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@263728 138bc75d-0d04-0410-961f-82ee72b054a4

3 files changed, 5 insertions, 75 deletions

diff --git a/gcc/ada/ChangeLog b/gcc/ada/ChangeLog
index f34ebbd963f..a89911a9b42 100644
--- a/gcc/ada/ChangeLog
+++ b/gcc/ada/ChangeLog
@@ -1,3 +1,8 @@
+2018-08-21  Bob Duff  <duff@adacore.com>
+
+	* einfo.ads, einfo.adb (Private_View, Shadow_Entities): Remove
+	obsolete code.
+
 2018-08-21  Maroua Maalej  <maalej@adacore.com>
 
 	* sem_spark.adb (Check_Call_Statement): Check global and formal
diff --git a/gcc/ada/einfo.adb b/gcc/ada/einfo.adb
index c9cdfc202f1..52a9435fdeb 100644
--- a/gcc/ada/einfo.adb
+++ b/gcc/ada/einfo.adb
@@ -118,7 +118,6 @@ package body Einfo is
    --    Alignment                       Uint14
    --    Normalized_Position             Uint14
    --    Postconditions_Proc             Node14
-   --    Shadow_Entities                 List14
 
    --    Discriminant_Number             Uint15
    --    DT_Position                     Uint15
@@ -199,7 +198,6 @@ package body Einfo is
    --    Corresponding_Remote_Type       Node22
    --    Enumeration_Rep_Expr            Node22
    --    Original_Record_Component       Node22
-   --    Private_View                    Node22
    --    Protected_Formal                Node22
    --    Scope_Depth_Value               Uint22
    --    Shared_Var_Procs_Instance       Node22
@@ -3126,12 +3124,6 @@ package body Einfo is
       return Elist18 (Id);
    end Private_Dependents;
 
-   function Private_View (Id : E) return N is
-   begin
-      pragma Assert (Is_Private_Type (Id));
-      return Node22 (Id);
-   end Private_View;
-
    function Protected_Body_Subprogram (Id : E) return E is
    begin
       pragma Assert (Is_Subprogram (Id) or else Is_Entry (Id));
@@ -3314,12 +3306,6 @@ package body Einfo is
       return Flag167 (Id);
    end Sec_Stack_Needed_For_Return;
 
-   function Shadow_Entities (Id : E) return S is
-   begin
-      pragma Assert (Ekind_In (Id, E_Package, E_Generic_Package));
-      return List14 (Id);
-   end Shadow_Entities;
-
    function Shared_Var_Procs_Instance (Id : E) return E is
    begin
       pragma Assert (Ekind (Id) = E_Variable);
@@ -6376,12 +6362,6 @@ package body Einfo is
       Set_Elist18 (Id, V);
    end Set_Private_Dependents;
 
-   procedure Set_Private_View (Id : E; V : N) is
-   begin
-      pragma Assert (Is_Private_Type (Id));
-      Set_Node22 (Id, V);
-   end Set_Private_View;
-
    procedure Set_Prev_Entity (Id : E; V : E) is
    begin
       Set_Node36 (Id, V);
@@ -6573,12 +6553,6 @@ package body Einfo is
       Set_Flag167 (Id, V);
    end Set_Sec_Stack_Needed_For_Return;
 
-   procedure Set_Shadow_Entities (Id : E; V : S) is
-   begin
-      pragma Assert (Ekind_In (Id, E_Package, E_Generic_Package));
-      Set_List14 (Id, V);
-   end Set_Shadow_Entities;
-
    procedure Set_Shared_Var_Procs_Instance (Id : E; V : E) is
    begin
       pragma Assert (Ekind (Id) = E_Variable);
@@ -10405,11 +10379,6 @@ package body Einfo is
          =>
             Write_Str ("Postconditions_Proc");
 
-         when E_Generic_Package
-            | E_Package
-         =>
-            Write_Str ("Shadow_Entities");
-
          when others =>
             Write_Str ("Field14??");
       end case;
@@ -10845,15 +10814,6 @@ package body Einfo is
          when E_Enumeration_Literal =>
             Write_Str ("Enumeration_Rep_Expr");
 
-         when E_Limited_Private_Subtype
-            | E_Limited_Private_Type
-            | E_Private_Subtype
-            | E_Private_Type
-            | E_Record_Subtype_With_Private
-            | E_Record_Type_With_Private
-         =>
-            Write_Str ("Private_View");
-
          when Formal_Kind =>
             Write_Str ("Protected_Formal");
 
diff --git a/gcc/ada/einfo.ads b/gcc/ada/einfo.ads
index dbe1ad6d533..018684d7b2f 100644
--- a/gcc/ada/einfo.ads
+++ b/gcc/ada/einfo.ads
@@ -4005,17 +4005,6 @@ package Einfo is
 --       declaration of the type is seen. Subprograms that have such an
 --       access parameter are also placed in the list of private_dependents.
 
---    Private_View (Node22)
---       For each private type, three entities are allocated, the private view,
---       the full view, and the shadow entity. The shadow entity contains a
---       copy of the private view and is used for restoring the proper private
---       view after a region in which the full view is visible (and is copied
---       into the entity normally used for the private view during this period
---       of visibility). The Private_View field is self-referential when the
---       private view lives in its normal entity, but in the copy that is made
---       in the shadow entity, it points to the proper location in which to
---       restore the private view saved in the shadow.
-
 --    Protected_Body_Subprogram (Node11)
 --       Defined in protected operations. References the entity for the
 --       subprogram which implements the body of the operation.
@@ -4264,18 +4253,6 @@ package Einfo is
 --       returned value of a function and thus should not be released on scope
 --       exit.
 
---    Shadow_Entities (List14)
---       Defined in package and generic package entities. Points to a list
---       of entities that correspond to private types. For each private type
---       a shadow entity is created that holds a copy of the private view.
---       In regions of the program where the full views of these private
---       entities are visible, the full view is copied into the entity that
---       is normally used to hold the private view, but the shadow entity
---       copy is unchanged. The shadow entities are then used to restore the
---       original private views at the end of the region. This list is a
---       standard format list (i.e. First (Shadow_Entities) is the first
---       entry and subsequent entries are obtained using Next.
-
 --    Shared_Var_Procs_Instance (Node22)
 --       Defined in variables. Set non-Empty only if Is_Shared_Passive is
 --       set, in which case this is the entity for the associated instance of
@@ -6323,7 +6300,6 @@ package Einfo is
    --    Underlying_Full_View                (Node19)
    --    Last_Entity                         (Node20)
    --    Discriminant_Constraint             (Elist21)
-   --    Private_View                        (Node22)
    --    Stored_Constraint                   (Elist23)
    --    Has_Completion                      (Flag26)
    --    (plus type attributes)
@@ -6402,7 +6378,6 @@ package Einfo is
    --    Generic_Homonym                     (Node11)   (generic case only)
    --    Associated_Formal_Package           (Node12)
    --    Elaboration_Entity                  (Node13)
-   --    Shadow_Entities                     (List14)
    --    Related_Instance                    (Node15)   (non-generic case only)
    --    First_Private_Entity                (Node16)
    --    First_Entity                        (Node17)
@@ -6480,7 +6455,6 @@ package Einfo is
    --    Underlying_Full_View                (Node19)
    --    Last_Entity                         (Node20)
    --    Discriminant_Constraint             (Elist21)
-   --    Private_View                        (Node22)
    --    Stored_Constraint                   (Elist23)
    --    Has_Completion                      (Flag26)
    --    Is_Controlled_Active                (Flag42)   (base type only)
@@ -6661,7 +6635,6 @@ package Einfo is
    --    Underlying_Full_View                (Node19)
    --    Last_Entity                         (Node20)
    --    Discriminant_Constraint             (Elist21)
-   --    Private_View                        (Node22)
    --    Stored_Constraint                   (Elist23)
    --    Interfaces                          (Elist25)
    --    Predicated_Parent                   (Node38)   (subtype only)
@@ -7476,7 +7449,6 @@ package Einfo is
    function Prival                              (Id : E) return E;
    function Prival_Link                         (Id : E) return E;
    function Private_Dependents                  (Id : E) return L;
-   function Private_View                        (Id : E) return N;
    function Protected_Body_Subprogram           (Id : E) return E;
    function Protected_Formal                    (Id : E) return E;
    function Protected_Subprogram                (Id : E) return N;
@@ -7509,7 +7481,6 @@ package Einfo is
    function Scale_Value                         (Id : E) return U;
    function Scope_Depth_Value                   (Id : E) return U;
    function Sec_Stack_Needed_For_Return         (Id : E) return B;
-   function Shadow_Entities                     (Id : E) return S;
    function Shared_Var_Procs_Instance           (Id : E) return E;
    function Size_Check_Code                     (Id : E) return N;
    function Size_Depends_On_Discriminant        (Id : E) return B;
@@ -8182,7 +8153,6 @@ package Einfo is
    procedure Set_Prival                          (Id : E; V : E);
    procedure Set_Prival_Link                     (Id : E; V : E);
    procedure Set_Private_Dependents              (Id : E; V : L);
-   procedure Set_Private_View                    (Id : E; V : N);
    procedure Set_Protected_Body_Subprogram       (Id : E; V : E);
    procedure Set_Protected_Formal                (Id : E; V : E);
    procedure Set_Protected_Subprogram            (Id : E; V : N);
@@ -8215,7 +8185,6 @@ package Einfo is
    procedure Set_Scale_Value                     (Id : E; V : U);
    procedure Set_Scope_Depth_Value               (Id : E; V : U);
    procedure Set_Sec_Stack_Needed_For_Return     (Id : E; V : B := True);
-   procedure Set_Shadow_Entities                 (Id : E; V : S);
    procedure Set_Shared_Var_Procs_Instance       (Id : E; V : E);
    procedure Set_Size_Check_Code                 (Id : E; V : N);
    procedure Set_Size_Depends_On_Discriminant    (Id : E; V : B := True);
@@ -9059,7 +9028,6 @@ package Einfo is
    pragma Inline (Prival);
    pragma Inline (Prival_Link);
    pragma Inline (Private_Dependents);
-   pragma Inline (Private_View);
    pragma Inline (Protected_Body_Subprogram);
    pragma Inline (Protected_Formal);
    pragma Inline (Protected_Subprogram);
@@ -9093,7 +9061,6 @@ package Einfo is
    pragma Inline (Scale_Value);
    pragma Inline (Scope_Depth_Value);
    pragma Inline (Sec_Stack_Needed_For_Return);
-   pragma Inline (Shadow_Entities);
    pragma Inline (Shared_Var_Procs_Instance);
    pragma Inline (Size_Check_Code);
    pragma Inline (Size_Depends_On_Discriminant);
@@ -9552,7 +9519,6 @@ package Einfo is
    pragma Inline (Set_Prival);
    pragma Inline (Set_Prival_Link);
    pragma Inline (Set_Private_Dependents);
-   pragma Inline (Set_Private_View);
    pragma Inline (Set_Protected_Body_Subprogram);
    pragma Inline (Set_Protected_Formal);
    pragma Inline (Set_Protected_Subprogram);
@@ -9585,7 +9551,6 @@ package Einfo is
    pragma Inline (Set_Scale_Value);
    pragma Inline (Set_Scope_Depth_Value);
    pragma Inline (Set_Sec_Stack_Needed_For_Return);
-   pragma Inline (Set_Shadow_Entities);
    pragma Inline (Set_Shared_Var_Procs_Instance);
    pragma Inline (Set_Size_Check_Code);
    pragma Inline (Set_Size_Depends_On_Discriminant);