1 files changed, 44 insertions, 0 deletions
diff --git a/test/builtins/Unit/bswapdi2_test.c b/test/builtins/Unit/bswapdi2_test.c
new file mode 100644
index 000000000000..2d830cf5e41e
--- /dev/null
+++ b/test/builtins/Unit/bswapdi2_test.c
@@ -0,0 +1,44 @@
+//===-- bswapdi2_test.c - Test __bswapdi2 ---------------------------------===//
+//
+//                     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 __bswapdi2 for the compiler_rt library.
+//
+//===----------------------------------------------------------------------===//
+
+#include <stdlib.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <math.h>
+
+
+extern uint64_t __bswapdi2(uint64_t);
+
+#if __arm__
+int test__bswapdi2(uint64_t a, uint64_t expected)
+{
+    uint64_t actual = __bswapdi2(a);
+    if (actual != expected)
+        printf("error in test__bswapsi2(0x%0llX) = 0x%0llX, expected 0x%0llX\n",
+               a, actual, expected);
+    return actual != expected;
+}
+#endif
+
+int main()
+{
+#if __arm__
+    if (test__bswapdi2(0x123456789ABCDEF0LL, 0xF0DEBC9A78563412LL))
+        return 1;
+    if (test__bswapdi2(0x0000000100000002LL, 0x0200000001000000LL))
+        return 1;
+#else
+    printf("skipped\n");
+#endif
+    return 0;
+}