1 files changed, 110 insertions, 0 deletions
diff --git a/test/Unit/muldi3_test.c b/test/Unit/muldi3_test.c
new file mode 100644
index 000000000..915befa4d
--- /dev/null
+++ b/test/Unit/muldi3_test.c
@@ -0,0 +1,110 @@
+//===-- muldi3_test.c - Test __muldi3 -------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file tests __muldi3 for the compiler_rt library.
+//
+//===----------------------------------------------------------------------===//
+
+#include "int_lib.h"
+#include <stdio.h>
+
+di_int __muldi3(di_int a, di_int b);
+
+int test__muldi3(di_int a, di_int b, di_int expected)
+{
+    di_int x = __muldi3(a, b);
+    if (x != expected)
+        printf("error in __muldi3: %lld * %lld = %lld, expected %lld\n",
+               a, b, __muldi3(a, b), expected);
+    return x != expected;
+}
+
+char assumption_1[sizeof(di_int) == 2*sizeof(si_int)] = {0};
+
+int main()
+{
+    if (test__muldi3(0, 0, 0))
+        return 1;
+    if (test__muldi3(0, 1, 0))
+        return 1;
+    if (test__muldi3(1, 0, 0))
+        return 1;
+    if (test__muldi3(0, 10, 0))
+        return 1;
+    if (test__muldi3(10, 0, 0))
+        return 1;
+    if (test__muldi3(0, 81985529216486895LL, 0))
+        return 1;
+    if (test__muldi3(81985529216486895LL, 0, 0))
+        return 1;
+
+    if (test__muldi3(0, -1, 0))
+        return 1;
+    if (test__muldi3(-1, 0, 0))
+        return 1;
+    if (test__muldi3(0, -10, 0))
+        return 1;
+    if (test__muldi3(-10, 0, 0))
+        return 1;
+    if (test__muldi3(0, -81985529216486895LL, 0))
+        return 1;
+    if (test__muldi3(-81985529216486895LL, 0, 0))
+        return 1;
+
+    if (test__muldi3(1, 1, 1))
+        return 1;
+    if (test__muldi3(1, 10, 10))
+        return 1;
+    if (test__muldi3(10, 1, 10))
+        return 1;
+    if (test__muldi3(1, 81985529216486895LL, 81985529216486895LL))
+        return 1;
+    if (test__muldi3(81985529216486895LL, 1, 81985529216486895LL))
+        return 1;
+
+    if (test__muldi3(1, -1, -1))
+        return 1;
+    if (test__muldi3(1, -10, -10))
+        return 1;
+    if (test__muldi3(-10, 1, -10))
+        return 1;
+    if (test__muldi3(1, -81985529216486895LL, -81985529216486895LL))
+        return 1;
+    if (test__muldi3(-81985529216486895LL, 1, -81985529216486895LL))
+        return 1;
+
+    if (test__muldi3(3037000499LL, 3037000499LL, 9223372030926249001LL))
+        return 1;
+    if (test__muldi3(-3037000499LL, 3037000499LL, -9223372030926249001LL))
+        return 1;
+    if (test__muldi3(3037000499LL, -3037000499LL, -9223372030926249001LL))
+        return 1;
+    if (test__muldi3(-3037000499LL, -3037000499LL, 9223372030926249001LL))
+        return 1;
+
+    if (test__muldi3(4398046511103LL, 2097152LL, 9223372036852678656LL))
+        return 1;
+    if (test__muldi3(-4398046511103LL, 2097152LL, -9223372036852678656LL))
+        return 1;
+    if (test__muldi3(4398046511103LL, -2097152LL, -9223372036852678656LL))
+        return 1;
+    if (test__muldi3(-4398046511103LL, -2097152LL, 9223372036852678656LL))
+        return 1;
+
+    if (test__muldi3(2097152LL, 4398046511103LL, 9223372036852678656LL))
+        return 1;
+    if (test__muldi3(-2097152LL, 4398046511103LL, -9223372036852678656LL))
+        return 1;
+    if (test__muldi3(2097152LL, -4398046511103LL, -9223372036852678656LL))
+        return 1;
+    if (test__muldi3(-2097152LL, -4398046511103LL, 9223372036852678656LL))
+        return 1;
+
+    return 0;
+}