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Add a test program to check whether the PAUSE instruction is available.

ut/ut0auxconf_pause.c

+/*****************************************************************************
+
+Copyright (c) 2009, Innobase Oy. All Rights Reserved.
+
+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; version 2 of the License.
+
+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., 59 Temple
+Place, Suite 330, Boston, MA 02111-1307 USA
+
+*****************************************************************************/
+
+/*****************************************************************************
+If this program compiles and can be run and returns 0, then the pause
+instruction is available.
+
+Created Jul 21, 2009 Vasil Dimov
+*****************************************************************************/
+
+int
+main(int argc, char** argv)
+{
+	__asm__ __volatile__ ("pause");
+
+	return(0);
+}