Sriraman Tallam <tmsriram@google.com>

* icf.cc (Icf::find_identical_sections): Unfold symbols that have
	been maked as --keep-unique.
	(Icf::unfold_section): New function.
	* icf.h (Icf::unfold_section): New function.
	* options.h (General_options::keep_unique): New option.
	* testsuite/Makefile.am: Add commands to build icf_keep_unique_test.
	* testsuite/Makefile.in: Regenerate.
	* testsuite/icf_keep_unique_test.sh: New file.
	* testsuite/icf_keep_unique_test.cc: New file.

gold/testsuite/icf_keep_unique_test.sh

@@ -0,0 +1,39 @@
+#!/bin/sh
+
+# icf_keep_unique_test.sh -- test --icf --keep-unique
+
+# Copyright 2009 Free Software Foundation, Inc.
+# Written by Sriraman Tallam <tmsriram@google.com>.
+
+# This file is part of gold.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT 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
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+# MA 02110-1301, USA.
+
+# The goal of this program is to verify if --keep-unique works
+# as intended when used with --icf.  
+ 
+check()
+{
+    func_addr_1=`grep $2 $1 | awk '{print $1}'`
+    func_addr_2=`grep $3 $1 | awk '{print $1}'`
+    if [ $func_addr_1 = $func_addr_2 ]
+    then
+        echo "Identical Code Folding with keep-unique failed to unfold" $2
+	exit 1
+    fi
+}
+
+check icf_keep_unique_test.stdout "kept_func" "unique_func"