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--                                                                          --

--                         GNAT COMPILER COMPONENTS                         --

--                                                                          --

--                              E X P _ C H 4                               --

--                                                                          --

--                                 S p e c                                  --

--                                                                          --

--          Copyright (C) 1992-2009, 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.      --

--                                                                          --

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--  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_Conditional_Expression      (N : Node_Id);

   procedure Expand_N_In                          (N : Node_Id);

   procedure Expand_N_Explicit_Dereference        (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_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;