[builtins] Implement __floattitf() & __floatuntitf()

Implement the missing __floattitf() and __floatuntitf() functions, to
convert 128-bit (unsigned) integers to quad-precision floating-point
types. This is needed e.g. on AArch64 where 'long double' is
a quad-precision type.

The code is based on the existing code for __floattixf()
and __floatuntixf(), updated to account for different bit field lengths
of quad-precision float. The tests are also copied, with the rounding
tests adjusted for longer significand.

Differential Revision: https://reviews.llvm.org/D27898

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@291259 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 433 insertions, 0 deletions

diff --git a/test/builtins/Unit/floattitf_test.c b/test/builtins/Unit/floattitf_test.c
new file mode 100644
index 000000000..928b2e881
--- /dev/null
+++ b/test/builtins/Unit/floattitf_test.c
@@ -0,0 +1,213 @@
+//===-- floattitf.c - Test __floattitf ------------------------------------===//
+//
+//                     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 __floattitf for the compiler_rt library.
+//
+//===----------------------------------------------------------------------===//
+
+#define QUAD_PRECISION
+#include "fp_lib.h"
+#include "int_lib.h"
+#include <float.h>
+#include <stdio.h>
+
+#if defined(CRT_HAS_128BIT) && defined(CRT_LDBL_128BIT)
+
+/* Returns: convert a ti_int to a fp_t, rounding toward even. */
+
+/* Assumption: fp_t is a IEEE 128 bit floating point type
+ *             ti_int is a 128 bit integral type
+ */
+
+/* seee eeee eeee eeee mmmm mmmm mmmm mmmm | mmmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm |
+ * mmmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm | mmmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm
+ */
+
+COMPILER_RT_ABI fp_t __floattitf(ti_int a);
+
+int test__floattitf(ti_int a, fp_t expected) {
+    fp_t x = __floattitf(a);
+    if (x != expected) {
+        twords at;
+        at.all = a;
+        printf("error in __floattitf(0x%.16llX%.16llX) = %LA, expected %LA\n",
+               at.s.high, at.s.low, x, expected);
+    }
+    return x != expected;
+}
+
+char assumption_1[sizeof(ti_int) == 2*sizeof(di_int)] = {0};
+char assumption_2[sizeof(ti_int)*CHAR_BIT == 128] = {0};
+char assumption_3[sizeof(fp_t)*CHAR_BIT == 128] = {0};
+
+#endif
+
+int main() {
+#if defined(CRT_HAS_128BIT) && defined(CRT_LDBL_128BIT)
+    if (test__floattitf(0, 0.0))
+        return 1;
+
+    if (test__floattitf(1, 1.0))
+        return 1;
+    if (test__floattitf(2, 2.0))
+        return 1;
+    if (test__floattitf(20, 20.0))
+        return 1;
+    if (test__floattitf(-1, -1.0))
+        return 1;
+    if (test__floattitf(-2, -2.0))
+        return 1;
+    if (test__floattitf(-20, -20.0))
+        return 1;
+
+    if (test__floattitf(0x7FFFFF8000000000LL, 0x1.FFFFFEp+62))
+        return 1;
+    if (test__floattitf(0x7FFFFFFFFFFFF800LL, 0x1.FFFFFFFFFFFFEp+62))
+        return 1;
+    if (test__floattitf(0x7FFFFF0000000000LL, 0x1.FFFFFCp+62))
+        return 1;
+    if (test__floattitf(0x7FFFFFFFFFFFF000LL, 0x1.FFFFFFFFFFFFCp+62))
+        return 1;
+
+    if (test__floattitf(make_ti(0x8000008000000000LL, 0), -0x1.FFFFFEp+126))
+        return 1;
+    if (test__floattitf(make_ti(0x8000000000000800LL, 0), -0x1.FFFFFFFFFFFFEp+126))
+        return 1;
+    if (test__floattitf(make_ti(0x8000010000000000LL, 0), -0x1.FFFFFCp+126))
+        return 1;
+    if (test__floattitf(make_ti(0x8000000000001000LL, 0), -0x1.FFFFFFFFFFFFCp+126))
+        return 1;
+
+    if (test__floattitf(make_ti(0x8000000000000000LL, 0), -0x1.000000p+127))
+        return 1;
+    if (test__floattitf(make_ti(0x8000000000000001LL, 0), -0x1.FFFFFFFFFFFFFFFCp+126L))
+        return 1;
+
+    if (test__floattitf(0x0007FB72E8000000LL, 0x1.FEDCBAp+50))
+        return 1;
+
+    if (test__floattitf(0x0007FB72EA000000LL, 0x1.FEDCBA8p+50))
+        return 1;
+    if (test__floattitf(0x0007FB72EB000000LL, 0x1.FEDCBACp+50))
+        return 1;
+    if (test__floattitf(0x0007FB72EBFFFFFFLL, 0x1.FEDCBAFFFFFFCp+50))
+        return 1;
+    if (test__floattitf(0x0007FB72EC000000LL, 0x1.FEDCBBp+50))
+        return 1;
+    if (test__floattitf(0x0007FB72E8000001LL, 0x1.FEDCBA0000004p+50))
+        return 1;
+
+    if (test__floattitf(0x0007FB72E6000000LL, 0x1.FEDCB98p+50))
+        return 1;
+    if (test__floattitf(0x0007FB72E7000000LL, 0x1.FEDCB9Cp+50))
+        return 1;
+    if (test__floattitf(0x0007FB72E7FFFFFFLL, 0x1.FEDCB9FFFFFFCp+50))
+        return 1;
+    if (test__floattitf(0x0007FB72E4000001LL, 0x1.FEDCB90000004p+50))
+        return 1;
+    if (test__floattitf(0x0007FB72E4000000LL, 0x1.FEDCB9p+50))
+        return 1;
+
+    if (test__floattitf(0x023479FD0E092DC0LL, 0x1.1A3CFE870496Ep+57))
+        return 1;
+    if (test__floattitf(0x023479FD0E092DA1LL, 0x1.1A3CFE870496D08p+57L))
+        return 1;
+    if (test__floattitf(0x023479FD0E092DB0LL, 0x1.1A3CFE870496D8p+57L))
+        return 1;
+    if (test__floattitf(0x023479FD0E092DB8LL, 0x1.1A3CFE870496DCp+57L))
+        return 1;
+    if (test__floattitf(0x023479FD0E092DB6LL, 0x1.1A3CFE870496DBp+57L))
+        return 1;
+    if (test__floattitf(0x023479FD0E092DBFLL, 0x1.1A3CFE870496DF8p+57L))
+        return 1;
+    if (test__floattitf(0x023479FD0E092DC1LL, 0x1.1A3CFE870496E08p+57L))
+        return 1;
+    if (test__floattitf(0x023479FD0E092DC7LL, 0x1.1A3CFE870496E38p+57L))
+        return 1;
+    if (test__floattitf(0x023479FD0E092DC8LL, 0x1.1A3CFE870496E4p+57L))
+        return 1;
+    if (test__floattitf(0x023479FD0E092DCFLL, 0x1.1A3CFE870496E78p+57L))
+        return 1;
+    if (test__floattitf(0x023479FD0E092DD0LL, 0x1.1A3CFE870496E8p+57L))
+        return 1;
+    if (test__floattitf(0x023479FD0E092DD1LL, 0x1.1A3CFE870496E88p+57L))
+        return 1;
+    if (test__floattitf(0x023479FD0E092DD8LL, 0x1.1A3CFE870496ECp+57L))
+        return 1;
+    if (test__floattitf(0x023479FD0E092DDFLL, 0x1.1A3CFE870496EF8p+57L))
+        return 1;
+    if (test__floattitf(0x023479FD0E092DE0LL, 0x1.1A3CFE870496Fp+57))
+        return 1;
+
+    if (test__floattitf(make_ti(0x023479FD0E092DC0LL, 0), 0x1.1A3CFE870496Ep+121L))
+        return 1;
+    if (test__floattitf(make_ti(0x023479FD0E092DA1LL, 1), 0x1.1A3CFE870496D08p+121L))
+        return 1;
+    if (test__floattitf(make_ti(0x023479FD0E092DB0LL, 2), 0x1.1A3CFE870496D8p+121L))
+        return 1;
+    if (test__floattitf(make_ti(0x023479FD0E092DB8LL, 3), 0x1.1A3CFE870496DCp+121L))
+        return 1;
+    if (test__floattitf(make_ti(0x023479FD0E092DB6LL, 4), 0x1.1A3CFE870496DBp+121L))
+        return 1;
+    if (test__floattitf(make_ti(0x023479FD0E092DBFLL, 5), 0x1.1A3CFE870496DF8p+121L))
+        return 1;
+    if (test__floattitf(make_ti(0x023479FD0E092DC1LL, 6), 0x1.1A3CFE870496E08p+121L))
+        return 1;
+    if (test__floattitf(make_ti(0x023479FD0E092DC7LL, 7), 0x1.1A3CFE870496E38p+121L))
+        return 1;
+    if (test__floattitf(make_ti(0x023479FD0E092DC8LL, 8), 0x1.1A3CFE870496E4p+121L))
+        return 1;
+    if (test__floattitf(make_ti(0x023479FD0E092DCFLL, 9), 0x1.1A3CFE870496E78p+121L))
+        return 1;
+    if (test__floattitf(make_ti(0x023479FD0E092DD0LL, 0), 0x1.1A3CFE870496E8p+121L))
+        return 1;
+    if (test__floattitf(make_ti(0x023479FD0E092DD1LL, 11), 0x1.1A3CFE870496E88p+121L))
+        return 1;
+    if (test__floattitf(make_ti(0x023479FD0E092DD8LL, 12), 0x1.1A3CFE870496ECp+121L))
+        return 1;
+    if (test__floattitf(make_ti(0x023479FD0E092DDFLL, 13), 0x1.1A3CFE870496EF8p+121L))
+        return 1;
+    if (test__floattitf(make_ti(0x023479FD0E092DE0LL, 14), 0x1.1A3CFE870496Fp+121L))
+        return 1;
+
+    if (test__floattitf(make_ti(0, 0xFFFFFFFFFFFFFFFFLL), 0x1.FFFFFFFFFFFFFFFEp+63L))
+        return 1;
+
+    if (test__floattitf(make_ti(0x123456789ABCDEF0LL, 0x123456789ABC2801LL),
+                        0x1.23456789ABCDEF0123456789ABC3p+124L))
+        return 1;
+    if (test__floattitf(make_ti(0x123456789ABCDEF0LL, 0x123456789ABC3000LL),
+                        0x1.23456789ABCDEF0123456789ABC3p+124L))
+        return 1;
+    if (test__floattitf(make_ti(0x123456789ABCDEF0LL, 0x123456789ABC37FFLL),
+                        0x1.23456789ABCDEF0123456789ABC3p+124L))
+        return 1;
+    if (test__floattitf(make_ti(0x123456789ABCDEF0LL, 0x123456789ABC3800LL),
+                        0x1.23456789ABCDEF0123456789ABC4p+124L))
+        return 1;
+    if (test__floattitf(make_ti(0x123456789ABCDEF0LL, 0x123456789ABC4000LL),
+                        0x1.23456789ABCDEF0123456789ABC4p+124L))
+        return 1;
+    if (test__floattitf(make_ti(0x123456789ABCDEF0LL, 0x123456789ABC47FFLL),
+                        0x1.23456789ABCDEF0123456789ABC4p+124L))
+        return 1;
+    if (test__floattitf(make_ti(0x123456789ABCDEF0LL, 0x123456789ABC4800LL),
+                        0x1.23456789ABCDEF0123456789ABC4p+124L))
+        return 1;
+    if (test__floattitf(make_ti(0x123456789ABCDEF0LL, 0x123456789ABC4801LL),
+                        0x1.23456789ABCDEF0123456789ABC5p+124L))
+        return 1;
+    if (test__floattitf(make_ti(0x123456789ABCDEF0LL, 0x123456789ABC57FFLL),
+                        0x1.23456789ABCDEF0123456789ABC5p+124L))
+        return 1;
+#else
+    printf("skipped\n");
+#endif
+   return 0;
+}
diff --git a/test/builtins/Unit/floatuntitf_test.c b/test/builtins/Unit/floatuntitf_test.c
new file mode 100644
index 000000000..495adcfa9
--- /dev/null
+++ b/test/builtins/Unit/floatuntitf_test.c
@@ -0,0 +1,220 @@
+//===-- floatuntitf.c - Test __floatuntitf --------------------------------===//
+//
+//                     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 __floatuntitf for the compiler_rt library.
+//
+//===----------------------------------------------------------------------===//
+
+#define QUAD_PRECISION
+#include "fp_lib.h"
+#include "int_lib.h"
+#include <float.h>
+#include <stdio.h>
+
+#if defined(CRT_HAS_128BIT) && defined(CRT_LDBL_128BIT)
+
+/* Returns: convert a tu_int to a fp_t, rounding toward even. */
+
+/* Assumption: fp_t is a IEEE 128 bit floating point type
+ *             tu_int is a 128 bit integral type
+ */
+
+/* seee eeee eeee eeee mmmm mmmm mmmm mmmm | mmmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm |
+ * mmmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm | mmmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm
+ */
+
+COMPILER_RT_ABI fp_t __floatuntitf(tu_int a);
+
+int test__floatuntitf(tu_int a, fp_t expected) {
+    fp_t x = __floatuntitf(a);
+    if (x != expected) {
+        utwords at;
+        at.all = a;
+        printf("error in __floatuntitf(0x%.16llX%.16llX) = %LA, expected %LA\n",
+               at.s.high, at.s.low, x, expected);
+    }
+    return x != expected;
+}
+
+char assumption_1[sizeof(tu_int) == 2*sizeof(du_int)] = {0};
+char assumption_2[sizeof(tu_int)*CHAR_BIT == 128] = {0};
+char assumption_3[sizeof(fp_t)*CHAR_BIT == 128] = {0};
+
+#endif
+
+int main() {
+#if defined(CRT_HAS_128BIT) && defined(CRT_LDBL_128BIT)
+    if (test__floatuntitf(0, 0.0))
+        return 1;
+
+    if (test__floatuntitf(1, 1.0))
+        return 1;
+    if (test__floatuntitf(2, 2.0))
+        return 1;
+    if (test__floatuntitf(20, 20.0))
+        return 1;
+
+    if (test__floatuntitf(0x7FFFFF8000000000ULL, 0x1.FFFFFEp+62))
+        return 1;
+    if (test__floatuntitf(0x7FFFFFFFFFFFF800ULL, 0x1.FFFFFFFFFFFFEp+62))
+        return 1;
+    if (test__floatuntitf(0x7FFFFF0000000000ULL, 0x1.FFFFFCp+62))
+        return 1;
+    if (test__floatuntitf(0x7FFFFFFFFFFFF000ULL, 0x1.FFFFFFFFFFFFCp+62))
+        return 1;
+    if (test__floatuntitf(0x7FFFFFFFFFFFFFFFULL, 0xF.FFFFFFFFFFFFFFEp+59L))
+        return 1;
+    if (test__floatuntitf(0xFFFFFFFFFFFFFFFEULL, 0xF.FFFFFFFFFFFFFFEp+60L))
+        return 1;
+    if (test__floatuntitf(0xFFFFFFFFFFFFFFFFULL, 0xF.FFFFFFFFFFFFFFFp+60L))
+        return 1;
+
+    if (test__floatuntitf(0x8000008000000000ULL, 0x8.000008p+60))
+        return 1;
+    if (test__floatuntitf(0x8000000000000800ULL, 0x8.0000000000008p+60))
+        return 1;
+    if (test__floatuntitf(0x8000010000000000ULL, 0x8.00001p+60))
+        return 1;
+    if (test__floatuntitf(0x8000000000001000ULL, 0x8.000000000001p+60))
+        return 1;
+
+    if (test__floatuntitf(0x8000000000000000ULL, 0x8p+60))
+        return 1;
+    if (test__floatuntitf(0x8000000000000001ULL, 0x8.000000000000001p+60L))
+        return 1;
+
+    if (test__floatuntitf(0x0007FB72E8000000LL, 0x1.FEDCBAp+50))
+        return 1;
+
+    if (test__floatuntitf(0x0007FB72EA000000LL, 0x1.FEDCBA8p+50))
+        return 1;
+    if (test__floatuntitf(0x0007FB72EB000000LL, 0x1.FEDCBACp+50))
+        return 1;
+    if (test__floatuntitf(0x0007FB72EBFFFFFFLL, 0x1.FEDCBAFFFFFFCp+50))
+        return 1;
+    if (test__floatuntitf(0x0007FB72EC000000LL, 0x1.FEDCBBp+50))
+        return 1;
+    if (test__floatuntitf(0x0007FB72E8000001LL, 0x1.FEDCBA0000004p+50))
+        return 1;
+
+    if (test__floatuntitf(0x0007FB72E6000000LL, 0x1.FEDCB98p+50))
+        return 1;
+    if (test__floatuntitf(0x0007FB72E7000000LL, 0x1.FEDCB9Cp+50))
+        return 1;
+    if (test__floatuntitf(0x0007FB72E7FFFFFFLL, 0x1.FEDCB9FFFFFFCp+50))
+        return 1;
+    if (test__floatuntitf(0x0007FB72E4000001LL, 0x1.FEDCB90000004p+50))
+        return 1;
+    if (test__floatuntitf(0x0007FB72E4000000LL, 0x1.FEDCB9p+50))
+        return 1;
+
+    if (test__floatuntitf(0x023479FD0E092DC0LL, 0x1.1A3CFE870496Ep+57))
+        return 1;
+    if (test__floatuntitf(0x023479FD0E092DA1LL, 0x1.1A3CFE870496D08p+57L))
+        return 1;
+    if (test__floatuntitf(0x023479FD0E092DB0LL, 0x1.1A3CFE870496D8p+57L))
+        return 1;
+    if (test__floatuntitf(0x023479FD0E092DB8LL, 0x1.1A3CFE870496DCp+57L))
+        return 1;
+    if (test__floatuntitf(0x023479FD0E092DB6LL, 0x1.1A3CFE870496DBp+57L))
+        return 1;
+    if (test__floatuntitf(0x023479FD0E092DBFLL, 0x1.1A3CFE870496DF8p+57L))
+        return 1;
+    if (test__floatuntitf(0x023479FD0E092DC1LL, 0x1.1A3CFE870496E08p+57L))
+        return 1;
+    if (test__floatuntitf(0x023479FD0E092DC7LL, 0x1.1A3CFE870496E38p+57L))
+        return 1;
+    if (test__floatuntitf(0x023479FD0E092DC8LL, 0x1.1A3CFE870496E4p+57L))
+        return 1;
+    if (test__floatuntitf(0x023479FD0E092DCFLL, 0x1.1A3CFE870496E78p+57L))
+        return 1;
+    if (test__floatuntitf(0x023479FD0E092DD0LL, 0x1.1A3CFE870496E8p+57L))
+        return 1;
+    if (test__floatuntitf(0x023479FD0E092DD1LL, 0x1.1A3CFE870496E88p+57L))
+        return 1;
+    if (test__floatuntitf(0x023479FD0E092DD8LL, 0x1.1A3CFE870496ECp+57L))
+        return 1;
+    if (test__floatuntitf(0x023479FD0E092DDFLL, 0x1.1A3CFE870496EF8p+57L))
+        return 1;
+    if (test__floatuntitf(0x023479FD0E092DE0LL, 0x1.1A3CFE870496Fp+57))
+        return 1;
+
+    if (test__floatuntitf(make_ti(0x023479FD0E092DC0LL, 0), 0x1.1A3CFE870496Ep+121L))
+        return 1;
+    if (test__floatuntitf(make_ti(0x023479FD0E092DA1LL, 1), 0x1.1A3CFE870496D08p+121L))
+        return 1;
+    if (test__floatuntitf(make_ti(0x023479FD0E092DB0LL, 2), 0x1.1A3CFE870496D8p+121L))
+        return 1;
+    if (test__floatuntitf(make_ti(0x023479FD0E092DB8LL, 3), 0x1.1A3CFE870496DCp+121L))
+        return 1;
+    if (test__floatuntitf(make_ti(0x023479FD0E092DB6LL, 4), 0x1.1A3CFE870496DBp+121L))
+        return 1;
+    if (test__floatuntitf(make_ti(0x023479FD0E092DBFLL, 5), 0x1.1A3CFE870496DF8p+121L))
+        return 1;
+    if (test__floatuntitf(make_ti(0x023479FD0E092DC1LL, 6), 0x1.1A3CFE870496E08p+121L))
+        return 1;
+    if (test__floatuntitf(make_ti(0x023479FD0E092DC7LL, 7), 0x1.1A3CFE870496E38p+121L))
+        return 1;
+    if (test__floatuntitf(make_ti(0x023479FD0E092DC8LL, 8), 0x1.1A3CFE870496E4p+121L))
+        return 1;
+    if (test__floatuntitf(make_ti(0x023479FD0E092DCFLL, 9), 0x1.1A3CFE870496E78p+121L))
+        return 1;
+    if (test__floatuntitf(make_ti(0x023479FD0E092DD0LL, 0), 0x1.1A3CFE870496E8p+121L))
+        return 1;
+    if (test__floatuntitf(make_ti(0x023479FD0E092DD1LL, 11), 0x1.1A3CFE870496E88p+121L))
+        return 1;
+    if (test__floatuntitf(make_ti(0x023479FD0E092DD8LL, 12), 0x1.1A3CFE870496ECp+121L))
+        return 1;
+    if (test__floatuntitf(make_ti(0x023479FD0E092DDFLL, 13), 0x1.1A3CFE870496EF8p+121L))
+        return 1;
+    if (test__floatuntitf(make_ti(0x023479FD0E092DE0LL, 14), 0x1.1A3CFE870496Fp+121L))
+        return 1;
+
+    if (test__floatuntitf(make_ti(0, 0xFFFFFFFFFFFFFFFFLL), 0x1.FFFFFFFFFFFFFFFEp+63L))
+        return 1;
+
+    if (test__floatuntitf(make_ti(0xFFFFFFFFFFFFFFFFLL, 0x0000000000000000LL),
+                          0x1.FFFFFFFFFFFFFFFEp+127L))
+        return 1;
+    if (test__floatuntitf(make_ti(0xFFFFFFFFFFFFFFFFLL, 0xFFFFFFFFFFFFFFFFLL),
+                          0x1.0000000000000000p+128L))
+        return 1;
+
+    if (test__floatuntitf(make_ti(0x123456789ABCDEF0LL, 0x123456789ABC2801LL),
+                        0x1.23456789ABCDEF0123456789ABC3p+124L))
+        return 1;
+    if (test__floatuntitf(make_ti(0x123456789ABCDEF0LL, 0x123456789ABC3000LL),
+                        0x1.23456789ABCDEF0123456789ABC3p+124L))
+        return 1;
+    if (test__floatuntitf(make_ti(0x123456789ABCDEF0LL, 0x123456789ABC37FFLL),
+                        0x1.23456789ABCDEF0123456789ABC3p+124L))
+        return 1;
+    if (test__floatuntitf(make_ti(0x123456789ABCDEF0LL, 0x123456789ABC3800LL),
+                        0x1.23456789ABCDEF0123456789ABC4p+124L))
+        return 1;
+    if (test__floatuntitf(make_ti(0x123456789ABCDEF0LL, 0x123456789ABC4000LL),
+                        0x1.23456789ABCDEF0123456789ABC4p+124L))
+        return 1;
+    if (test__floatuntitf(make_ti(0x123456789ABCDEF0LL, 0x123456789ABC47FFLL),
+                        0x1.23456789ABCDEF0123456789ABC4p+124L))
+        return 1;
+    if (test__floatuntitf(make_ti(0x123456789ABCDEF0LL, 0x123456789ABC4800LL),
+                        0x1.23456789ABCDEF0123456789ABC4p+124L))
+        return 1;
+    if (test__floatuntitf(make_ti(0x123456789ABCDEF0LL, 0x123456789ABC4801LL),
+                        0x1.23456789ABCDEF0123456789ABC5p+124L))
+        return 1;
+    if (test__floatuntitf(make_ti(0x123456789ABCDEF0LL, 0x123456789ABC57FFLL),
+                        0x1.23456789ABCDEF0123456789ABC5p+124L))
+        return 1;
+#else
+    printf("skipped\n");
+#endif
+   return 0;
+}