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
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if you have obtained the source via the command 'git clone',
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1 files changed, 100 insertions, 0 deletions

diff --git a/gcc/ada/exp_ch4.ads b/gcc/ada/exp_ch4.ads
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+------------------------------------------------------------------------------
+--                                                                          --
+--                         GNAT COMPILER COMPONENTS                         --
+--                                                                          --
+--                              E X P _ C H 4                               --
+--                                                                          --
+--                                 S p e c                                  --
+--                                                                          --
+--          Copyright (C) 1992-2010, 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.      --
+--                                                                          --
+------------------------------------------------------------------------------
+
+--  Expand routines for chapter 4 constructs
+
+with Types; use Types;
+
+package Exp_Ch4 is
+
+   procedure Expand_N_Allocator                   (N : Node_Id);
+   procedure Expand_N_And_Then                    (N : Node_Id);
+   procedure Expand_N_Case_Expression             (N : Node_Id);
+   procedure Expand_N_Conditional_Expression      (N : Node_Id);
+   procedure Expand_N_Explicit_Dereference        (N : Node_Id);
+   procedure Expand_N_In                          (N : Node_Id);
+   procedure Expand_N_Indexed_Component           (N : Node_Id);
+   procedure Expand_N_Not_In                      (N : Node_Id);
+   procedure Expand_N_Null                        (N : Node_Id);
+   procedure Expand_N_Op_Abs                      (N : Node_Id);
+   procedure Expand_N_Op_Add                      (N : Node_Id);
+   procedure Expand_N_Op_And                      (N : Node_Id);
+   procedure Expand_N_Op_Concat                   (N : Node_Id);
+   procedure Expand_N_Op_Divide                   (N : Node_Id);
+   procedure Expand_N_Op_Expon                    (N : Node_Id);
+   procedure Expand_N_Op_Eq                       (N : Node_Id);
+   procedure Expand_N_Op_Ge                       (N : Node_Id);
+   procedure Expand_N_Op_Gt                       (N : Node_Id);
+   procedure Expand_N_Op_Le                       (N : Node_Id);
+   procedure Expand_N_Op_Lt                       (N : Node_Id);
+   procedure Expand_N_Op_Minus                    (N : Node_Id);
+   procedure Expand_N_Op_Mod                      (N : Node_Id);
+   procedure Expand_N_Op_Multiply                 (N : Node_Id);
+   procedure Expand_N_Op_Ne                       (N : Node_Id);
+   procedure Expand_N_Op_Not                      (N : Node_Id);
+   procedure Expand_N_Op_Or                       (N : Node_Id);
+   procedure Expand_N_Op_Plus                     (N : Node_Id);
+   procedure Expand_N_Op_Rem                      (N : Node_Id);
+   procedure Expand_N_Op_Rotate_Left              (N : Node_Id);
+   procedure Expand_N_Op_Rotate_Right             (N : Node_Id);
+   procedure Expand_N_Op_Shift_Left               (N : Node_Id);
+   procedure Expand_N_Op_Shift_Right              (N : Node_Id);
+   procedure Expand_N_Op_Shift_Right_Arithmetic   (N : Node_Id);
+   procedure Expand_N_Op_Subtract                 (N : Node_Id);
+   procedure Expand_N_Op_Xor                      (N : Node_Id);
+   procedure Expand_N_Or_Else                     (N : Node_Id);
+   procedure Expand_N_Qualified_Expression        (N : Node_Id);
+   procedure Expand_N_Quantified_Expression       (N : Node_Id);
+   procedure Expand_N_Selected_Component          (N : Node_Id);
+   procedure Expand_N_Slice                       (N : Node_Id);
+   procedure Expand_N_Type_Conversion             (N : Node_Id);
+   procedure Expand_N_Unchecked_Expression        (N : Node_Id);
+   procedure Expand_N_Unchecked_Type_Conversion   (N : Node_Id);
+
+   function Expand_Record_Equality
+     (Nod    : Node_Id;
+      Typ    : Entity_Id;
+      Lhs    : Node_Id;
+      Rhs    : Node_Id;
+      Bodies : List_Id)
+      return Node_Id;
+   --  Expand a record equality into an expression that compares the fields
+   --  individually to yield the required Boolean result. Loc is the
+   --  location for the generated nodes. Typ is the type of the record, and
+   --  Lhs, Rhs are the record expressions to be compared, these
+   --  expressions need not to be analyzed but have to be side-effect free.
+   --  Bodies is a list on which to attach bodies of local functions that
+   --  are created in the process. This is the responsibility of the caller
+   --  to insert those bodies at the right place. Nod provides the Sloc
+   --  value for generated code.
+
+   function Integer_Promotion_Possible (N : Node_Id) return Boolean;
+   --  Returns true if the node is a type conversion whose operand is an
+   --  arithmetic operation on signed integers, and the base type of the
+   --  signed integer type is smaller than Standard.Integer. In such case we
+   --  have special circuitry in Expand_N_Type_Conversion to promote both of
+   --  the operands to type Integer.
+
+end Exp_Ch4;