1 files changed, 65 insertions, 0 deletions
diff --git a/test/Unit/udivti3_test.c b/test/Unit/udivti3_test.c
new file mode 100644
index 000000000..6c67fc5f5
--- /dev/null
+++ b/test/Unit/udivti3_test.c
@@ -0,0 +1,65 @@
+//===-- udivti3_test.c - Test __udivti3 -----------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file tests __udivti3 for the compiler_rt library.
+//
+//===----------------------------------------------------------------------===//
+
+#if __x86_64
+
+#include "int_lib.h"
+#include <stdio.h>
+
+// Returns: a / b
+
+tu_int __udivti3(tu_int a, tu_int b);
+
+int test__udivti3(tu_int a, tu_int b, tu_int expected_q)
+{
+    tu_int q = __udivti3(a, b);
+    if (q != expected_q)
+    {
+        utwords at;
+        at.all = a;
+        utwords bt;
+        bt.all = b;
+        utwords qt;
+        qt.all = q;
+        utwords expected_qt;
+        expected_qt.all = expected_q;
+        printf("error in __udivti3: 0x%llX%.16llX / 0x%llX%.16llX = "
+               "0x%llX%.16llX, expected 0x%llX%.16llX\n",
+               at.high, at.low, bt.high, bt.low, qt.high, qt.low,
+               expected_qt.high, expected_qt.low);
+    }
+    return q != expected_q;
+}
+
+#endif
+
+int main()
+{
+#if __x86_64
+    if (test__udivti3(0, 1, 0))
+        return 1;
+    if (test__udivti3(2, 1, 2))
+        return 1;
+    if (test__udivti3(make_tu(0x8000000000000000uLL, 0), 1,
+                      make_tu(0x8000000000000000uLL, 0)))
+        return 1;
+    if (test__udivti3(make_tu(0x8000000000000000uLL, 0), 2,
+                      make_tu(0x4000000000000000uLL, 0)))
+        return 1;
+    if (test__udivti3(make_tu(0xFFFFFFFFFFFFFFFFuLL, 0xFFFFFFFFFFFFFFFFuLL), 2,
+                      make_tu(0x7FFFFFFFFFFFFFFFuLL, 0xFFFFFFFFFFFFFFFFuLL)))
+        return 1;
+
+#endif
+    return 0;
+}