* targhooks.c (default_stack_protect_guard): Avoid sharing RTL

[pf3gnuchains/gcc-fork.git] / gcc / ada / exp_ch4.ads

diff --git a/gcc/ada/exp_ch4.ads b/gcc/ada/exp_ch4.ads
index 021f504..fad8c15 100644 (file)
--- a/gcc/ada/exp_ch4.ads
+++ b/gcc/ada/exp_ch4.ads
@@ -6,18 +6,17 @@
 --                                                                          --
 --                                 S p e c                                  --
 --                                                                          --
---          Copyright (C) 1992-2001 Free Software Foundation, Inc.          --
+--          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 2,  or (at your option) any later ver- --
+-- 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 COPYING.  If not, write --
--- to  the Free Software Foundation,  59 Temple Place - Suite 330,  Boston, --
--- MA 02111-1307, USA.                                                      --
+-- 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.      --
@@ -85,8 +84,15 @@ package Exp_Ch4 is
    --  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 responsability of the caller
-   --  to insert those bodies at the right place. Nod provdies the Sloc
+   --  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;