1 files changed, 77 insertions, 0 deletions
diff --git a/test/Unit/cmpdi2_test.c b/test/Unit/cmpdi2_test.c
new file mode 100644
index 000000000..459a5d50b
--- /dev/null
+++ b/test/Unit/cmpdi2_test.c
@@ -0,0 +1,77 @@
+//===-- cmpdi2_test.c - Test __cmpdi2 -------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file tests __cmpdi2 for the compiler_rt library.
+//
+//===----------------------------------------------------------------------===//
+
+#include "int_lib.h"
+#include <stdio.h>
+
+// Returns:  if (a <  b) returns 0
+//           if (a == b) returns 1
+//           if (a >  b) returns 2
+
+si_int __cmpdi2(di_int a, di_int b);
+
+int test__cmpdi2(di_int a, di_int b, si_int expected)
+{
+    si_int x = __cmpdi2(a, b);
+    if (x != expected)
+        printf("error in __cmpdi2(0x%llX, 0x%llX) = %d, expected %d\n",
+               a, b, x, expected);
+    return x != expected;
+}
+
+char assumption_1[sizeof(di_int) == 2*sizeof(si_int)] = {0};
+
+int main()
+{
+    if (test__cmpdi2(0, 0, 1))
+        return 1;
+    if (test__cmpdi2(1, 1, 1))
+        return 1;
+    if (test__cmpdi2(2, 2, 1))
+        return 1;
+    if (test__cmpdi2(0x7FFFFFFF, 0x7FFFFFFF, 1))
+        return 1;
+    if (test__cmpdi2(0x80000000, 0x80000000, 1))
+        return 1;
+    if (test__cmpdi2(0x80000001, 0x80000001, 1))
+        return 1;
+    if (test__cmpdi2(0xFFFFFFFF, 0xFFFFFFFF, 1))
+        return 1;
+    if (test__cmpdi2(0x000000010000000LL, 0x000000010000000LL, 1))
+        return 1;
+    if (test__cmpdi2(0xFFFFFFFFFFFFFFFFLL, 0xFFFFFFFFFFFFFFFFLL, 1))
+        return 1;
+
+    if (test__cmpdi2(0x0000000200000002LL, 0x0000000300000001LL, 0))
+        return 1;
+    if (test__cmpdi2(0x0000000200000002LL, 0x0000000300000002LL, 0))
+        return 1;
+    if (test__cmpdi2(0x0000000200000002LL, 0x0000000300000003LL, 0))
+        return 1;
+
+    if (test__cmpdi2(0x0000000200000002LL, 0x0000000100000001LL, 2))
+        return 1;
+    if (test__cmpdi2(0x0000000200000002LL, 0x0000000100000002LL, 2))
+        return 1;
+    if (test__cmpdi2(0x0000000200000002LL, 0x0000000100000003LL, 2))
+        return 1;
+
+    if (test__cmpdi2(0x0000000200000002LL, 0x0000000200000001LL, 2))
+        return 1;
+    if (test__cmpdi2(0x0000000200000002LL, 0x0000000200000002LL, 1))
+        return 1;
+    if (test__cmpdi2(0x0000000200000002LL, 0x0000000200000003LL, 0))
+        return 1;
+
+   return 0;
+}