1 files changed, 38 insertions, 0 deletions

diff --git a/arch/score/lib/ucmpdi2.c b/arch/score/lib/ucmpdi2.c
new file mode 100644
index 000000000000..b15241e0b079
--- /dev/null
+++ b/arch/score/lib/ucmpdi2.c
@@ -0,0 +1,38 @@
+/*
+ * arch/score/lib/ucmpdi2.c
+ *
+ * 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 2 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, see the file COPYING, or write
+ * to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include <linux/module.h>
+#include "libgcc.h"
+
+word_type __ucmpdi2(unsigned long long a, unsigned long long b)
+{
+        const DWunion au = {.ll = a};
+        const DWunion bu = {.ll = b};
+
+        if ((unsigned int) au.s.high < (unsigned int) bu.s.high)
+                return 0;
+        else if ((unsigned int) au.s.high > (unsigned int) bu.s.high)
+                return 2;
+        if ((unsigned int) au.s.low < (unsigned int) bu.s.low)
+                return 0;
+        else if ((unsigned int) au.s.low > (unsigned int) bu.s.low)
+                return 2;
+        return 1;
+}
+EXPORT_SYMBOL(__ucmpdi2);