1 files changed, 83 insertions, 0 deletions
diff --git a/test/builtins/Unit/extendsftf2_test.c b/test/builtins/Unit/extendsftf2_test.c
new file mode 100644
index 000000000000..5f41928b862f
--- /dev/null
+++ b/test/builtins/Unit/extendsftf2_test.c
@@ -0,0 +1,83 @@
+//===--------------- extendsftf2_test.c - Test __extendsftf2 --------------===//
+//
+//                     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 __extendsftf2 for the compiler_rt library.
+//
+//===----------------------------------------------------------------------===//
+
+#include <stdio.h>
+
+#if __LDBL_MANT_DIG__ == 113
+
+#include "fp_test.h"
+
+long double __extendsftf2(float a);
+
+int test__extendsftf2(float a, uint64_t expectedHi, uint64_t expectedLo)
+{
+    long double x = __extendsftf2(a);
+    int ret = compareResultLD(x, expectedHi, expectedLo);
+
+    if (ret)
+    {
+        printf("error in test__extendsftf2(%f) = %.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
+    // qNaN
+    if (test__extendsftf2(makeQNaN32(),
+                          UINT64_C(0x7fff800000000000),
+                          UINT64_C(0x0)))
+        return 1;
+    // NaN
+    if (test__extendsftf2(makeNaN32(UINT32_C(0x410000)),
+                          UINT64_C(0x7fff820000000000),
+                          UINT64_C(0x0)))
+        return 1;
+    // inf
+    if (test__extendsftf2(makeInf32(),
+                          UINT64_C(0x7fff000000000000),
+                          UINT64_C(0x0)))
+        return 1;
+    // zero
+    if (test__extendsftf2(0.0f, UINT64_C(0x0), UINT64_C(0x0)))
+        return 1;
+
+    if (test__extendsftf2(0x1.23456p+5f,
+                          UINT64_C(0x4004234560000000),
+                          UINT64_C(0x0)))
+        return 1;
+    if (test__extendsftf2(0x1.edcbap-9f,
+                          UINT64_C(0x3ff6edcba0000000),
+                          UINT64_C(0x0)))
+        return 1;
+    if (test__extendsftf2(0x1.23456p+45f,
+                          UINT64_C(0x402c234560000000),
+                          UINT64_C(0x0)))
+        return 1;
+    if (test__extendsftf2(0x1.edcbap-45f,
+                          UINT64_C(0x3fd2edcba0000000),
+                          UINT64_C(0x0)))
+        return 1;
+
+#else
+    printf("skipped\n");
+
+#endif
+    return 0;
+}