1 files changed, 75 insertions, 0 deletions
diff --git a/test/builtins/Unit/trunctfsf2_test.c b/test/builtins/Unit/trunctfsf2_test.c
new file mode 100644
index 0000000..44e7fd1
--- /dev/null
+++ b/test/builtins/Unit/trunctfsf2_test.c
@@ -0,0 +1,75 @@
+//===--------------- trunctfsf2_test.c - Test __trunctfsf2 ----------------===//
+//
+//                     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 __trunctfsf2 for the compiler_rt library.
+//
+//===----------------------------------------------------------------------===//
+
+#include <stdio.h>
+
+#if __LDBL_MANT_DIG__ == 113
+
+#include "fp_test.h"
+
+float __trunctfsf2(long double a);
+
+int test__trunctfsf2(long double a, uint32_t expected)
+{
+    float x = __trunctfsf2(a);
+    int ret = compareResultF(x, expected);
+
+    if (ret){
+        printf("error in test__trunctfsf2(%.20Lf) = %f, "
+               "expected %f\n", a, x, fromRep32(expected));
+    }
+    return ret;
+}
+
+char assumption_1[sizeof(long double) * CHAR_BIT == 128] = {0};
+
+#endif
+
+int main()
+{
+#if __LDBL_MANT_DIG__ == 113
+    // qNaN
+    if (test__trunctfsf2(makeQNaN128(),
+                         UINT32_C(0x7fc00000)))
+        return 1;
+    // NaN
+    if (test__trunctfsf2(makeNaN128(UINT64_C(0x810000000000)),
+                         UINT32_C(0x7fc08000)))
+        return 1;
+    // inf
+    if (test__trunctfsf2(makeInf128(),
+                         UINT32_C(0x7f800000)))
+        return 1;
+    // zero
+    if (test__trunctfsf2(0.0L, UINT32_C(0x0)))
+        return 1;
+
+    if (test__trunctfsf2(0x1.23a2abb4a2ddee355f36789abcdep+5L,
+                         UINT32_C(0x4211d156)))
+        return 1;
+    if (test__trunctfsf2(0x1.e3d3c45bd3abfd98b76a54cc321fp-9L,
+                         UINT32_C(0x3b71e9e2)))
+        return 1;
+    if (test__trunctfsf2(0x1.234eebb5faa678f4488693abcdefp+4534L,
+                         UINT32_C(0x7f800000)))
+        return 1;
+    if (test__trunctfsf2(0x1.edcba9bb8c76a5a43dd21f334634p-435L,
+                         UINT32_C(0x0)))
+        return 1;
+
+#else
+    printf("skipped\n");
+
+#endif
+    return 0;
+}