1 files changed, 55 insertions, 0 deletions
diff --git a/test/builtins/Unit/floatunsitf_test.c b/test/builtins/Unit/floatunsitf_test.c
new file mode 100644
index 0000000000000..1af72d246ab23
--- /dev/null
+++ b/test/builtins/Unit/floatunsitf_test.c
@@ -0,0 +1,55 @@
+//===--------------- floatunsitf_test.c - Test __floatunsitf --------------===//
+//
+//                     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 __floatunsitf for the compiler_rt library.
+//
+//===----------------------------------------------------------------------===//
+
+#include <stdio.h>
+
+#if __LDBL_MANT_DIG__ == 113
+
+#include "fp_test.h"
+
+long double __floatunsitf(unsigned int a);
+
+int test__floatunsitf(unsigned int a, uint64_t expectedHi, uint64_t expectedLo)
+{
+    long double x = __floatunsitf(a);
+    int ret = compareResultLD(x, expectedHi, expectedLo);
+
+    if (ret){
+        printf("error in test__floatunsitf(%u) = %.20Lf, "
+               "expected %.20Lf\n", a, x, fromRep128(expectedHi, expectedLo));
+    }
+    return ret;
+}
+
+char assumption_1[sizeof(long double) * CHAR_BIT == 128] = {0};
+
+#endif
+
+int main()
+{
+#if __LDBL_MANT_DIG__ == 113
+    if (test__floatunsitf(0x7fffffff, UINT64_C(0x401dfffffffc0000), UINT64_C(0x0)))
+        return 1;
+    if (test__floatunsitf(0, UINT64_C(0x0), UINT64_C(0x0)))
+        return 1;
+    if (test__floatunsitf(0xffffffff, UINT64_C(0x401efffffffe0000), UINT64_C(0x0)))
+        return 1;
+    if (test__floatunsitf(0x12345678, UINT64_C(0x401b234567800000), UINT64_C(0x0)))
+        return 1;
+
+#else
+    printf("skipped\n");
+
+#endif
+    return 0;
+}