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-rw-r--r--test/builtins/Unit/floatunditf_test.c67
1 files changed, 67 insertions, 0 deletions
diff --git a/test/builtins/Unit/floatunditf_test.c b/test/builtins/Unit/floatunditf_test.c
new file mode 100644
index 000000000000..b66a174a3f47
--- /dev/null
+++ b/test/builtins/Unit/floatunditf_test.c
@@ -0,0 +1,67 @@
+//===-- floatunditf_test.c - Test __floatunditf ---------------------------===//
+//
+// 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 __floatunditf for the compiler_rt library.
+//
+//===----------------------------------------------------------------------===//
+
+#include "int_lib.h"
+#include <math.h>
+#include <complex.h>
+#include <stdio.h>
+
+#if __LDBL_MANT_DIG__ == 113
+
+#include "fp_test.h"
+
+// Returns: long integer converted to long double
+
+COMPILER_RT_ABI long double __floatunditf(unsigned long long a);
+
+int test__floatunditf(unsigned long long a, uint64_t expectedHi, uint64_t expectedLo)
+{
+ long double x = __floatunditf(a);
+ int ret = compareResultLD(x, expectedHi, expectedLo);
+
+ if (ret)
+ printf("error in __floatunditf(%Lu) = %.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__floatunditf(0xffffffffffffffffULL, UINT64_C(0x403effffffffffff), UINT64_C(0xfffe000000000000)))
+ return 1;
+ if (test__floatunditf(0xfffffffffffffffeULL, UINT64_C(0x403effffffffffff), UINT64_C(0xfffc000000000000)))
+ return 1;
+ if (test__floatunditf(0x8000000000000000ULL, UINT64_C(0x403e000000000000), UINT64_C(0x0)))
+ return 1;
+ if (test__floatunditf(0x7fffffffffffffffULL, UINT64_C(0x403dffffffffffff), UINT64_C(0xfffc000000000000)))
+ return 1;
+ if (test__floatunditf(0x123456789abcdef1ULL, UINT64_C(0x403b23456789abcd), UINT64_C(0xef10000000000000)))
+ return 1;
+ if (test__floatunditf(0x2ULL, UINT64_C(0x4000000000000000), UINT64_C(0x0)))
+ return 1;
+ if (test__floatunditf(0x1ULL, UINT64_C(0x3fff000000000000), UINT64_C(0x0)))
+ return 1;
+ if (test__floatunditf(0x0ULL, UINT64_C(0x0), UINT64_C(0x0)))
+ return 1;
+
+#else
+ printf("skipped\n");
+
+#endif
+ return 0;
+}