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-rw-r--r--libgcc/config/epiphany/mulsi3.c39
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diff --git a/libgcc/config/epiphany/mulsi3.c b/libgcc/config/epiphany/mulsi3.c
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+/* Generic 32 bit multiply.
+ Copyright (C) 2009 Free Software Foundation, Inc.
+ Contributed by Embecosm on behalf of Adapteva, Inc.
+
+This file is part of GCC.
+
+This file 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, or (at your option) any
+later version.
+
+This file 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.
+
+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/>. */
+
+unsigned int
+__mulsi3 (unsigned int a, unsigned int b)
+{
+ unsigned int r = 0;
+
+ while (a)
+ {
+ if (a & 1)
+ r += b;
+ a >>= 1;
+ b <<= 1;
+ }
+ return r;
+}