81 lines · cpp
1//===-- Unittests for acoshf ----------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#include "hdr/errno_macros.h"10#include "hdr/math_macros.h"11#include "hdr/stdint_proxy.h"12#include "src/__support/FPUtil/FPBits.h"13#include "src/__support/macros/optimization.h"14#include "src/math/acoshf.h"15#include "test/UnitTest/FPMatcher.h"16#include "test/UnitTest/Test.h"17#include "utils/MPFRWrapper/MPFRUtils.h"18 19#ifdef LIBC_MATH_HAS_SKIP_ACCURATE_PASS20#define TOLERANCE 121#else22#define TOLERANCE 023#endif // LIBC_MATH_HAS_SKIP_ACCURATE_PASS24 25using LlvmLibcAcoshfTest = LIBC_NAMESPACE::testing::FPTest<float>;26 27namespace mpfr = LIBC_NAMESPACE::testing::mpfr;28 29TEST_F(LlvmLibcAcoshfTest, SpecialNumbers) {30 EXPECT_FP_EQ_ALL_ROUNDING(aNaN, LIBC_NAMESPACE::acoshf(aNaN));31 EXPECT_MATH_ERRNO(0);32 33 EXPECT_FP_EQ_ALL_ROUNDING(aNaN, LIBC_NAMESPACE::acoshf(0.0f));34 EXPECT_MATH_ERRNO(EDOM);35 36 EXPECT_FP_EQ_ALL_ROUNDING(0.0f, LIBC_NAMESPACE::acoshf(1.0f));37 EXPECT_MATH_ERRNO(0);38 39 EXPECT_FP_EQ_ALL_ROUNDING(inf, LIBC_NAMESPACE::acoshf(inf));40 EXPECT_MATH_ERRNO(0);41 42 EXPECT_FP_EQ_ALL_ROUNDING(aNaN, LIBC_NAMESPACE::acoshf(neg_inf));43 EXPECT_MATH_ERRNO(EDOM);44}45 46TEST_F(LlvmLibcAcoshfTest, InFloatRange) {47 constexpr uint32_t COUNT = 100'000;48 constexpr uint32_t STEP = UINT32_MAX / COUNT;49 for (uint32_t i = 0, v = 0; i <= COUNT; ++i, v += STEP) {50 float x = FPBits(v).get_val();51 if (FPBits(v).is_nan() || FPBits(v).is_inf())52 continue;53 ASSERT_MPFR_MATCH_ALL_ROUNDING(mpfr::Operation::Acosh, x,54 LIBC_NAMESPACE::acoshf(x), 0.5);55 }56}57 58TEST_F(LlvmLibcAcoshfTest, SpecificBitPatterns) {59 constexpr int N = 12;60 constexpr uint32_t INPUTS[N] = {61 0x3f800000, // x = 1.0f62 0x45abaf26, // x = 0x1.575e4cp12f63 0x49d29048, // x = 0x1.a5209p20f64 0x4bdd65a5, // x = 0x1.bacb4ap24f65 0x4c803f2c, // x = 0x1.007e58p26f66 0x4f8ffb03, // x = 0x1.1ff606p32f67 0x5c569e88, // x = 0x1.ad3d1p57f68 0x5e68984e, // x = 0x1.d1309cp61f69 0x655890d3, // x = 0x1.b121a6p75f70 0x65de7ca6, // x = 0x1.bcf94cp76f71 0x6eb1a8ec, // x = 0x1.6351d8p94f72 0x7997f30a, // x = 0x1.2fe614p116f73 };74 75 for (int i = 0; i < N; ++i) {76 float x = FPBits(INPUTS[i]).get_val();77 EXPECT_MPFR_MATCH_ALL_ROUNDING(mpfr::Operation::Acosh, x,78 LIBC_NAMESPACE::acoshf(x), TOLERANCE + 0.5);79 }80}81