57b08b0944
to reflect the new license. These used slightly different spellings that defeated my regular expressions. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351648
97 lines
3.1 KiB
C
97 lines
3.1 KiB
C
// RUN: %clang_builtins %s %librt -o %t && %run %t
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//===--------------- multf3_test.c - Test __multf3 ------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file tests __multf3 for the compiler_rt library.
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//
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//===----------------------------------------------------------------------===//
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#include <stdio.h>
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#if __LDBL_MANT_DIG__ == 113
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#include "int_lib.h"
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#include "fp_test.h"
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// Returns: a * b
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COMPILER_RT_ABI long double __multf3(long double a, long double b);
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int test__multf3(long double a, long double b,
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uint64_t expectedHi, uint64_t expectedLo)
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{
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long double x = __multf3(a, b);
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int ret = compareResultLD(x, expectedHi, expectedLo);
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if (ret){
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printf("error in test__multf3(%.20Lf, %.20Lf) = %.20Lf, "
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"expected %.20Lf\n", a, b, x,
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fromRep128(expectedHi, expectedLo));
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}
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return ret;
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}
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char assumption_1[sizeof(long double) * CHAR_BIT == 128] = {0};
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#endif
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int main()
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{
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#if __LDBL_MANT_DIG__ == 113
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// qNaN * any = qNaN
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if (test__multf3(makeQNaN128(),
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0x1.23456789abcdefp+5L,
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UINT64_C(0x7fff800000000000),
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UINT64_C(0x0)))
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return 1;
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// NaN * any = NaN
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if (test__multf3(makeNaN128(UINT64_C(0x800030000000)),
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0x1.23456789abcdefp+5L,
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UINT64_C(0x7fff800000000000),
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UINT64_C(0x0)))
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return 1;
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// inf * any = inf
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if (test__multf3(makeInf128(),
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0x1.23456789abcdefp+5L,
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UINT64_C(0x7fff000000000000),
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UINT64_C(0x0)))
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return 1;
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// any * any
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if (test__multf3(0x1.2eab345678439abcdefea56782346p+5L,
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0x1.edcb34a235253948765432134674fp-1L,
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UINT64_C(0x400423e7f9e3c9fc),
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UINT64_C(0xd906c2c2a85777c4)))
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return 1;
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if (test__multf3(0x1.353e45674d89abacc3a2ebf3ff4ffp-50L,
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0x1.ed8764648369535adf4be3214567fp-9L,
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UINT64_C(0x3fc52a163c6223fc),
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UINT64_C(0xc94c4bf0430768b4)))
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return 1;
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if (test__multf3(0x1.234425696abcad34a35eeffefdcbap+456L,
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0x451.ed98d76e5d46e5f24323dff21ffp+600L,
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UINT64_C(0x44293a91de5e0e94),
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UINT64_C(0xe8ed17cc2cdf64ac)))
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return 1;
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if (test__multf3(0x1.4356473c82a9fabf2d22ace345defp-234L,
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0x1.eda98765476743ab21da23d45678fp-455L,
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UINT64_C(0x3d4f37c1a3137cae),
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UINT64_C(0xfc6807048bc2836a)))
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return 1;
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// underflow
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if (test__multf3(0x1.23456734245345p-10000L,
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0x1.edcba524498724p-6497L,
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UINT64_C(0x0),
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UINT64_C(0x0)))
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return 1;
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#else
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printf("skipped\n");
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#endif
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return 0;
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}
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