d87eea35fa
This is the first step in preparation for: https://discourse.llvm.org/t/rfc-make-clang-builtin-math-functions-constexpr-with-llvm-libc-to-support-c-23-constexpr-math-functions/86450
77 lines
2.4 KiB
C++
77 lines
2.4 KiB
C++
//===-- Unittests for acoshf ----------------------------------------------===//
|
|
//
|
|
// 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
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "hdr/math_macros.h"
|
|
#include "src/__support/FPUtil/FPBits.h"
|
|
#include "src/__support/libc_errno.h"
|
|
#include "src/math/acoshf.h"
|
|
#include "test/UnitTest/FPMatcher.h"
|
|
#include "test/UnitTest/Test.h"
|
|
#include "utils/MPFRWrapper/MPFRUtils.h"
|
|
|
|
#include <stdint.h>
|
|
|
|
using LlvmLibcAcoshfTest = LIBC_NAMESPACE::testing::FPTest<float>;
|
|
|
|
namespace mpfr = LIBC_NAMESPACE::testing::mpfr;
|
|
|
|
TEST_F(LlvmLibcAcoshfTest, SpecialNumbers) {
|
|
libc_errno = 0;
|
|
|
|
EXPECT_FP_EQ_ALL_ROUNDING(aNaN, LIBC_NAMESPACE::acoshf(aNaN));
|
|
EXPECT_MATH_ERRNO(0);
|
|
|
|
EXPECT_FP_EQ_ALL_ROUNDING(aNaN, LIBC_NAMESPACE::acoshf(0.0f));
|
|
EXPECT_MATH_ERRNO(EDOM);
|
|
|
|
EXPECT_FP_EQ_ALL_ROUNDING(0.0f, LIBC_NAMESPACE::acoshf(1.0f));
|
|
EXPECT_MATH_ERRNO(0);
|
|
|
|
EXPECT_FP_EQ_ALL_ROUNDING(inf, LIBC_NAMESPACE::acoshf(inf));
|
|
EXPECT_MATH_ERRNO(0);
|
|
|
|
EXPECT_FP_EQ_ALL_ROUNDING(aNaN, LIBC_NAMESPACE::acoshf(neg_inf));
|
|
EXPECT_MATH_ERRNO(EDOM);
|
|
}
|
|
|
|
TEST_F(LlvmLibcAcoshfTest, InFloatRange) {
|
|
constexpr uint32_t COUNT = 100'000;
|
|
constexpr uint32_t STEP = UINT32_MAX / COUNT;
|
|
for (uint32_t i = 0, v = 0; i <= COUNT; ++i, v += STEP) {
|
|
float x = FPBits(v).get_val();
|
|
if (FPBits(v).is_nan() || FPBits(v).is_inf())
|
|
continue;
|
|
ASSERT_MPFR_MATCH_ALL_ROUNDING(mpfr::Operation::Acosh, x,
|
|
LIBC_NAMESPACE::acoshf(x), 0.5);
|
|
}
|
|
}
|
|
|
|
TEST_F(LlvmLibcAcoshfTest, SpecificBitPatterns) {
|
|
constexpr int N = 12;
|
|
constexpr uint32_t INPUTS[N] = {
|
|
0x3f800000, // x = 1.0f
|
|
0x45abaf26, // x = 0x1.575e4cp12f
|
|
0x49d29048, // x = 0x1.a5209p20f
|
|
0x4bdd65a5, // x = 0x1.bacb4ap24f
|
|
0x4c803f2c, // x = 0x1.007e58p26f
|
|
0x4f8ffb03, // x = 0x1.1ff606p32f
|
|
0x5c569e88, // x = 0x1.ad3d1p57f
|
|
0x5e68984e, // x = 0x1.d1309cp61f
|
|
0x655890d3, // x = 0x1.b121a6p75f
|
|
0x65de7ca6, // x = 0x1.bcf94cp76f
|
|
0x6eb1a8ec, // x = 0x1.6351d8p94f
|
|
0x7997f30a, // x = 0x1.2fe614p116f
|
|
};
|
|
|
|
for (int i = 0; i < N; ++i) {
|
|
float x = FPBits(INPUTS[i]).get_val();
|
|
EXPECT_MPFR_MATCH_ALL_ROUNDING(mpfr::Operation::Acosh, x,
|
|
LIBC_NAMESPACE::acoshf(x), 0.5);
|
|
}
|
|
}
|