1 files changed, 95 insertions, 0 deletions
diff --git a/test/builtins/Unit/modti3_test.c b/test/builtins/Unit/modti3_test.c
new file mode 100644
index 000000000000..ba9f9804dfca
--- /dev/null
+++ b/test/builtins/Unit/modti3_test.c
@@ -0,0 +1,95 @@
+//===-- modti3_test.c - Test __modti3 -------------------------------------===//
+//
+//                     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 tests __modti3 for the compiler_rt library.
+//
+//===----------------------------------------------------------------------===//
+
+#include "int_lib.h"
+#include <stdio.h>
+
+#ifdef CRT_HAS_128BIT
+
+// Returns: a % b
+
+ti_int __modti3(ti_int a, ti_int b);
+
+int test__modti3(ti_int a, ti_int b, ti_int expected)
+{
+    ti_int x = __modti3(a, b);
+    if (x != expected)
+    {
+        twords at;
+        at.all = a;
+        twords bt;
+        bt.all = b;
+        twords xt;
+        xt.all = x;
+        twords expectedt;
+        expectedt.all = expected;
+        printf("error in __modti3: 0x%.16llX%.16llX %% 0x%.16llX%.16llX = "
+               "0x%.16llX%.16llX, expected 0x%.16llX%.16llX\n",
+               at.s.high, at.s.low, bt.s.high, bt.s.low, xt.s.high, xt.s.low,
+               expectedt.s.high, expectedt.s.low);
+    }
+    return x != expected;
+}
+
+char assumption_1[sizeof(ti_int) == 2*sizeof(di_int)] = {0};
+
+#endif
+
+int main()
+{
+#ifdef CRT_HAS_128BIT
+    if (test__modti3(0, 1, 0))
+        return 1;
+    if (test__modti3(0, -1, 0))
+        return 1;
+
+    if (test__modti3(5, 3, 2))
+        return 1;
+    if (test__modti3(5, -3, 2))
+        return 1;
+    if (test__modti3(-5, 3, -2))
+        return 1;
+    if (test__modti3(-5, -3, -2))
+        return 1;
+
+    if (test__modti3(0x8000000000000000LL, 1, 0x0LL))
+        return 1;
+    if (test__modti3(0x8000000000000000LL, -1, 0x0LL))
+        return 1;
+    if (test__modti3(0x8000000000000000LL, 2, 0x0LL))
+        return 1;
+    if (test__modti3(0x8000000000000000LL, -2, 0x0LL))
+        return 1;
+    if (test__modti3(0x8000000000000000LL, 3, 2))
+        return 1;
+    if (test__modti3(0x8000000000000000LL, -3, 2))
+        return 1;
+
+    if (test__modti3(make_ti(0x8000000000000000LL, 0), 1, 0x0LL))
+        return 1;
+    if (test__modti3(make_ti(0x8000000000000000LL, 0), -1, 0x0LL))
+        return 1;
+    if (test__modti3(make_ti(0x8000000000000000LL, 0), 2, 0x0LL))
+        return 1;
+    if (test__modti3(make_ti(0x8000000000000000LL, 0), -2, 0x0LL))
+        return 1;
+    if (test__modti3(make_ti(0x8000000000000000LL, 0), 3, -2))
+        return 1;
+    if (test__modti3(make_ti(0x8000000000000000LL, 0), -3, -2))
+        return 1;
+
+#else
+    printf("skipped\n");
+#endif
+    return 0;
+}