obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
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1 files changed, 81 insertions, 0 deletions

diff --git a/gcc/ada/treepr.ads b/gcc/ada/treepr.ads
new file mode 100644
index 000000000..3d05748fd
--- /dev/null
+++ b/gcc/ada/treepr.ads
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+------------------------------------------------------------------------------
+--                                                                          --
+--                         GNAT COMPILER COMPONENTS                         --
+--                                                                          --
+--                               T R E E P R                                --
+--                                                                          --
+--                                 S p e c                                  --
+--                                                                          --
+--          Copyright (C) 1992-2007, 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- --
+-- ware  Foundation;  either version 3,  or (at your option) any later ver- --
+-- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
+-- OUT 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  distributed with GNAT; see file COPYING3.  If not, go to --
+-- http://www.gnu.org/licenses for a complete copy of the license.          --
+--                                                                          --
+-- GNAT was originally developed  by the GNAT team at  New York University. --
+-- Extensive contributions were provided by Ada Core Technologies Inc.      --
+--                                                                          --
+------------------------------------------------------------------------------
+
+with Types; use Types;
+package Treepr is
+
+--  This package provides printing routines for the abstract syntax tree
+--  These routines are intended only for debugging use.
+
+   procedure Tree_Dump;
+   --  This routine is called from the GNAT main program to dump trees as
+   --  requested by debug options (including tree of Standard if requested).
+
+   procedure Print_Tree_Node (N : Node_Id; Label : String := "");
+   --  Prints a single tree node, without printing descendants. The Label
+   --  string is used to preface each line of the printed output.
+
+   procedure Print_Tree_List (L : List_Id);
+   --  Prints a single node list, without printing the descendants of any
+   --  of the nodes in the list
+
+   procedure Print_Tree_Elist (E : Elist_Id);
+   --  Prints a single node list, without printing the descendants of any
+   --  of the nodes in the list
+
+   procedure Print_Node_Subtree (N : Node_Id);
+   --  Prints the subtree routed at a specified tree node, including all
+   --  referenced descendants.
+
+   procedure Print_List_Subtree (L : List_Id);
+   --  Prints the subtree consisting of the given node list and all its
+   --  referenced descendants.
+
+   procedure Print_Elist_Subtree (E : Elist_Id);
+   --  Prints the subtree consisting of the given element list and all its
+   --  referenced descendants.
+
+   procedure pe (E : Elist_Id);
+   pragma Export (Ada, pe);
+   --  Debugging procedure (to be called within gdb), same as Print_Tree_Elist
+
+   procedure pl (L : Int);
+   pragma Export (Ada, pl);
+   --  Debugging procedure (to be called within gdb), same as Print_Tree_List,
+   --  except that you can use e.g. 66 instead of -99999966. In other words
+   --  for the positive case we fill out to 8 digits on the left and add a
+   --  minus sign. This just saves some typing in the debugger.
+
+   procedure pn (N : Node_Id);
+   pragma Export (Ada, pn);
+   --  Debugging procedure (to be called within gdb)
+   --  same as Print_Tree_Node with Label = ""
+
+   procedure pt (N : Node_Id);
+   pragma Export (Ada, pt);
+   --  Debugging procedure (to be called within gdb)
+   --  same as Print_Node_Subtree
+
+end Treepr;