1 files changed, 29 insertions, 0 deletions
diff --git a/lib/builtins/umodti3.c b/lib/builtins/umodti3.c
new file mode 100644
index 000000000000..6d1ca7a8cf6f
--- /dev/null
+++ b/lib/builtins/umodti3.c
@@ -0,0 +1,29 @@
+/* ===-- umodti3.c - Implement __umodti3 -----------------------------------===
+ *
+ *                     The LLVM Compiler Infrastructure
+ *
+ * This file is dual licensed under the MIT and the University of Illinois Open
+ * Source Licenses. See LICENSE.TXT for details.
+ *
+ * ===----------------------------------------------------------------------===
+ *
+ * This file implements __umodti3 for the compiler_rt library.
+ *
+ * ===----------------------------------------------------------------------===
+ */
+
+#include "int_lib.h"
+
+#ifdef CRT_HAS_128BIT
+
+/* Returns: a % b */
+
+COMPILER_RT_ABI tu_int
+__umodti3(tu_int a, tu_int b)
+{
+    tu_int r;
+    __udivmodti4(a, b, &r);
+    return r;
+}
+
+#endif /* CRT_HAS_128BIT */