2009-04-16 Robert Dewar <dewar@adacore.com>

	* Makefile.rtl: Add entries for s-conca?

	* debug.adb: Add debug flags -gnatd.c and -gnatd.C to control behavior
	of concatenation expansion

	* exp_ch4.adb (Expand_Concatenation): Generate calls for certain
	string cases instead of expanding assignments inline.

	* opt.ads (Optimize_Size): New flag

	* s-conca2.ads, s-conca2.adb, s-conca3.adb, s-conca3.ads,
	s-conca4.adb, s-conca4.ads, s-conca5.adb, s-conca5.ads, s-conca6.adb,
	s-conca6.ads, s-conca7.ads, s-conca7.adb, s-conca8.adb, s-conca8.ads,
	s-conca9.adb, s-conca9.ads: New file.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@146161 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 47 insertions, 0 deletions

diff --git a/gcc/ada/s-conca3.ads b/gcc/ada/s-conca3.ads
new file mode 100644
index 00000000000..66005a2a5c0
--- /dev/null
+++ b/gcc/ada/s-conca3.ads
@@ -0,0 +1,47 @@
+------------------------------------------------------------------------------
+--                                                                          --
+--                 GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS                 --
+--                                                                          --
+--                      S Y S T E M . C O N C A T _ 3                       --
+--                                                                          --
+--                                 S p e c                                  --
+--                                                                          --
+--            Copyright (C) 2008-2009, 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.                                     --
+--                                                                          --
+-- As a special exception under Section 7 of GPL version 3, you are granted --
+-- additional permissions described in the GCC Runtime Library Exception,   --
+-- version 3.1, as published by the Free Software Foundation.               --
+--                                                                          --
+-- You should have received a copy of the GNU General Public License and    --
+-- a copy of the GCC Runtime Library Exception along with this program;     --
+-- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
+-- <http://www.gnu.org/licenses/>.                                          --
+--                                                                          --
+-- GNAT was originally developed  by the GNAT team at  New York University. --
+-- Extensive contributions were provided by Ada Core Technologies Inc.      --
+--                                                                          --
+------------------------------------------------------------------------------
+
+--  This package contains a procedure for runtime concatenation of three string
+--  operands. It is used when we want to save space in the generated code.
+
+pragma Warnings (Off);
+pragma Compiler_Unit;
+pragma Warnings (On);
+
+package System.Concat_3 is
+
+   procedure Str_Concat_3 (R : out String; S1, S2, S3 : String);
+   --  Performs the operation R := S1 & S2 & S3. The bounds of R are known to
+   --  be correct, so no bounds checks are required, and it is known that none
+   --  of the input operands overlaps R. No assumptions can be made about
+   --  the lower bounds of any of the operands.
+
+end System.Concat_3;