1 files changed, 0 insertions, 159 deletions
diff --git a/src/vhdl/nodes_gc.adb.in b/src/vhdl/nodes_gc.adb.in
deleted file mode 100644
index 7c4303bc5..000000000
--- a/src/vhdl/nodes_gc.adb.in
+++ /dev/null
@@ -1,159 +0,0 @@
---  Node garbage collector (for debugging).
---  Copyright (C) 2014 Tristan Gingold
---
---  GHDL is free software; you can redistribute it and/or modify it under
---  the terms of the GNU General Public License as published by the Free
---  Software Foundation; either version 2, or (at your option) any later
---  version.
---
---  GHDL is distributed in the hope that it will be useful, but WITHOUT ANY
---  WARRANTY; without even the implied warranty of MERCHANTABILITY or
---  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
---  for more details.
---
---  You should have received a copy of the GNU General Public License
---  along with GHDL; see the file COPYING.  If not, write to the Free
---  Software Foundation, 59 Temple Place - Suite 330, Boston, MA
---  02111-1307, USA.
-
-with Ada.Text_IO;
-with Types; use Types;
-with Nodes;
-with Iirs; use Iirs;
-with Libraries;
-with Disp_Tree;
-with Std_Package;
-
-package body Nodes_GC is
-
-   type Marker_Array is array (Iir range <>) of Boolean;
-   type Marker_Array_Acc is access Marker_Array;
-
-   Markers : Marker_Array_Acc;
-
-   procedure Mark_Iir (N : Iir);
-
-   procedure Mark_Iir_List (N : Iir_List)
-   is
-      El : Iir;
-   begin
-      case N is
-         when Null_Iir_List
-           | Iir_List_All
-           | Iir_List_Others =>
-            null;
-         when others =>
-            for I in Natural loop
-               El := Get_Nth_Element (N, I);
-               exit when El = Null_Iir;
-               Mark_Iir (El);
-            end loop;
-      end case;
-   end Mark_Iir_List;
-
-   procedure Mark_PSL_Node (N : PSL_Node) is
-   begin
-      null;
-   end Mark_PSL_Node;
-
-   procedure Mark_PSL_NFA (N : PSL_NFA) is
-   begin
-      null;
-   end Mark_PSL_NFA;
-
-   procedure Report_Already_Marked (N : Iir)
-   is
-      use Ada.Text_IO;
-   begin
-      Disp_Tree.Disp_Tree (N, True);
-      return;
-   end Report_Already_Marked;
-
-   procedure Already_Marked (N : Iir) is
-   begin
-      --  An unused node mustn't be referenced.
-      if Get_Kind (N) = Iir_Kind_Unused then
-         raise Internal_Error;
-      end if;
-
-      if not Flag_Disp_Multiref then
-         return;
-      end if;
-
-      case Get_Kind (N) is
-         when Iir_Kind_Constant_Interface_Declaration =>
-            if Get_Identifier (N) = Null_Identifier then
-               --  Anonymous interfaces are shared by predefined functions.
-               return;
-            end if;
-         when Iir_Kind_Enumeration_Literal =>
-            if Get_Enum_Pos (N) = 0
-              or else N = Get_Right_Limit (Get_Range_Constraint
-                                             (Get_Type (N)))
-            then
-               return;
-            end if;
-         when others =>
-            null;
-      end case;
-
-      Report_Already_Marked (N);
-   end Already_Marked;
-
-   procedure Mark_Chain (Head : Iir)
-   is
-      El : Iir;
-   begin
-      El := Head;
-      while El /= Null_Iir loop
-         Mark_Iir (El);
-         El := Get_Chain (El);
-      end loop;
-   end Mark_Chain;
-
-   procedure Report_Unreferenced_Node (N : Iir) is
-   begin
-      Disp_Tree.Disp_Tree (N, True);
-   end Report_Unreferenced_Node;
-
-   --  Subprograms
-
-   procedure Report_Unreferenced
-   is
-      use Ada.Text_IO;
-      use Std_Package;
-      El : Iir;
-      Nbr_Unreferenced : Natural;
-   begin
-      Markers := new Marker_Array'(Null_Iir .. Iirs.Get_Last_Node => False);
-
-      if Flag_Disp_Multiref then
-         Put_Line ("** nodes already marked:");
-      end if;
-
-      Mark_Chain (Libraries.Get_Libraries_Chain);
-      Mark_Chain (Libraries.Obsoleted_Design_Units);
-      Mark_Iir (Convertible_Integer_Type_Declaration);
-      Mark_Iir (Convertible_Integer_Subtype_Declaration);
-      Mark_Iir (Convertible_Real_Type_Declaration);
-      Mark_Iir (Universal_Integer_One);
-      Mark_Iir (Error_Mark);
-
-      El := Error_Mark;
-      Nbr_Unreferenced := 0;
-      while El in Markers'Range loop
-         if not Markers (El) and then Get_Kind (El) /= Iir_Kind_Unused then
-            if Nbr_Unreferenced = 0 then
-               Put_Line ("** unreferenced nodes:");
-            end if;
-            Nbr_Unreferenced := Nbr_Unreferenced + 1;
-            Report_Unreferenced_Node (El);
-         end if;
-         El := Iir (Nodes.Next_Node (Nodes.Node_Type (El)));
-      end loop;
-
-      if Nbr_Unreferenced /= 0 then
-         raise Internal_Error;
-      end if;
-   end Report_Unreferenced;
-end Nodes_GC;