trunctfdf2_test.c
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// RUN: %clang_builtins %s %librt -o %t && %run %t
// REQUIRES: librt_has_trunctfdf2
//===-------------- trunctfdf2_test.c - Test __trunctfdf2 -----------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file tests __trunctfdf2 for the compiler_rt library.
//
//===----------------------------------------------------------------------===//
#include "int_lib.h"
#include <stdio.h>
#if __LDBL_MANT_DIG__ == 113
#include "fp_test.h"
COMPILER_RT_ABI double __trunctfdf2(long double a);
int test__trunctfdf2(long double a, uint64_t expected)
{
double x = __trunctfdf2(a);
int ret = compareResultD(x, expected);
if (ret)
{
printf("error in test__trunctfdf2(%.20Lf) = %lf, "
"expected %lf\n", a, x, fromRep64(expected));
}
return ret;
}
char assumption_1[sizeof(long double) * CHAR_BIT == 128] = {0};
#endif
int main()
{
#if __LDBL_MANT_DIG__ == 113
// qNaN
if (test__trunctfdf2(makeQNaN128(),
UINT64_C(0x7ff8000000000000)))
return 1;
// NaN
if (test__trunctfdf2(makeNaN128(UINT64_C(0x810000000000)),
UINT64_C(0x7ff8100000000000)))
return 1;
// inf
if (test__trunctfdf2(makeInf128(),
UINT64_C(0x7ff0000000000000)))
return 1;
// zero
if (test__trunctfdf2(0.0L, UINT64_C(0x0)))
return 1;
if (test__trunctfdf2(0x1.af23456789bbaaab347645365cdep+5L,
UINT64_C(0x404af23456789bbb)))
return 1;
if (test__trunctfdf2(0x1.dedafcff354b6ae9758763545432p-9L,
UINT64_C(0x3f6dedafcff354b7)))
return 1;
if (test__trunctfdf2(0x1.2f34dd5f437e849b4baab754cdefp+4534L,
UINT64_C(0x7ff0000000000000)))
return 1;
if (test__trunctfdf2(0x1.edcbff8ad76ab5bf46463233214fp-435L,
UINT64_C(0x24cedcbff8ad76ab)))
return 1;
#else
printf("skipped\n");
#endif
return 0;
}