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// RUN: %clang_builtins %s %librt -o %t && %run %t
//===--------------- multf3_test.c - Test __multf3 ------------------------===//
//
// 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 __multf3 for the compiler_rt library.
//
//===----------------------------------------------------------------------===//
#include <stdio.h>
#if __LDBL_MANT_DIG__ == 113
#include "int_lib.h"
#include "fp_test.h"
// Returns: a * b
COMPILER_RT_ABI long double __multf3(long double a, long double b);
int test__multf3(long double a, long double b,
uint64_t expectedHi, uint64_t expectedLo)
{
long double x = __multf3(a, b);
int ret = compareResultLD(x, expectedHi, expectedLo);
if (ret){
printf("error in test__multf3(%.20Lf, %.20Lf) = %.20Lf, "
"expected %.20Lf\n", a, b, 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 * any = qNaN
if (test__multf3(makeQNaN128(),
0x1.23456789abcdefp+5L,
UINT64_C(0x7fff800000000000),
UINT64_C(0x0)))
return 1;
// NaN * any = NaN
if (test__multf3(makeNaN128(UINT64_C(0x800030000000)),
0x1.23456789abcdefp+5L,
UINT64_C(0x7fff800000000000),
UINT64_C(0x0)))
return 1;
// inf * any = inf
if (test__multf3(makeInf128(),
0x1.23456789abcdefp+5L,
UINT64_C(0x7fff000000000000),
UINT64_C(0x0)))
return 1;
// any * any
if (test__multf3(0x1.2eab345678439abcdefea56782346p+5L,
0x1.edcb34a235253948765432134674fp-1L,
UINT64_C(0x400423e7f9e3c9fc),
UINT64_C(0xd906c2c2a85777c4)))
return 1;
if (test__multf3(0x1.353e45674d89abacc3a2ebf3ff4ffp-50L,
0x1.ed8764648369535adf4be3214567fp-9L,
UINT64_C(0x3fc52a163c6223fc),
UINT64_C(0xc94c4bf0430768b4)))
return 1;
if (test__multf3(0x1.234425696abcad34a35eeffefdcbap+456L,
0x451.ed98d76e5d46e5f24323dff21ffp+600L,
UINT64_C(0x44293a91de5e0e94),
UINT64_C(0xe8ed17cc2cdf64ac)))
return 1;
if (test__multf3(0x1.4356473c82a9fabf2d22ace345defp-234L,
0x1.eda98765476743ab21da23d45678fp-455L,
UINT64_C(0x3d4f37c1a3137cae),
UINT64_C(0xfc6807048bc2836a)))
return 1;
// underflow
if (test__multf3(0x1.23456734245345p-10000L,
0x1.edcba524498724p-6497L,
UINT64_C(0x0),
UINT64_C(0x0)))
return 1;
#else
printf("skipped\n");
#endif
return 0;
}
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