83 lines · cpp
1//===-- Unittests for asinf2//------------------------------------------------===//3//4// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.5// See https://llvm.org/LICENSE.txt for license information.6// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception7//8//===----------------------------------------------------------------------===//9 10#include "hdr/errno_macros.h"11#include "hdr/math_macros.h"12#include "hdr/stdint_proxy.h"13#include "src/__support/FPUtil/FPBits.h"14#include "src/__support/macros/optimization.h"15#include "src/math/asinf.h"16#include "test/UnitTest/FPMatcher.h"17#include "test/UnitTest/Test.h"18#include "utils/MPFRWrapper/MPFRUtils.h"19 20#ifdef LIBC_MATH_HAS_SKIP_ACCURATE_PASS21#define TOLERANCE 122#else23#define TOLERANCE 024#endif // LIBC_MATH_HAS_SKIP_ACCURATE_PASS25 26using LlvmLibcAsinfTest = LIBC_NAMESPACE::testing::FPTest<float>;27 28namespace mpfr = LIBC_NAMESPACE::testing::mpfr;29 30TEST_F(LlvmLibcAsinfTest, SpecialNumbers) {31 EXPECT_FP_EQ_ALL_ROUNDING(aNaN, LIBC_NAMESPACE::asinf(aNaN));32 EXPECT_MATH_ERRNO(0);33 34 EXPECT_FP_EQ_ALL_ROUNDING(0.0f, LIBC_NAMESPACE::asinf(0.0f));35 EXPECT_MATH_ERRNO(0);36 37 EXPECT_FP_EQ_ALL_ROUNDING(-0.0f, LIBC_NAMESPACE::asinf(-0.0f));38 EXPECT_MATH_ERRNO(0);39 40 EXPECT_FP_EQ_ALL_ROUNDING(aNaN, LIBC_NAMESPACE::asinf(inf));41 EXPECT_MATH_ERRNO(EDOM);42 43 EXPECT_FP_EQ_ALL_ROUNDING(aNaN, LIBC_NAMESPACE::asinf(neg_inf));44 EXPECT_MATH_ERRNO(EDOM);45}46 47TEST_F(LlvmLibcAsinfTest, InFloatRange) {48 constexpr uint32_t COUNT = 100'000;49 constexpr uint32_t STEP = UINT32_MAX / COUNT;50 for (uint32_t i = 0, v = 0; i <= COUNT; ++i, v += STEP) {51 float x = FPBits(v).get_val();52 if (FPBits(v).is_nan() || FPBits(v).is_inf())53 continue;54 ASSERT_MPFR_MATCH_ALL_ROUNDING(mpfr::Operation::Asin, x,55 LIBC_NAMESPACE::asinf(x), 0.5);56 }57}58 59TEST_F(LlvmLibcAsinfTest, SpecificBitPatterns) {60 constexpr int N = 11;61 constexpr uint32_t INPUTS[N] = {62 0x3f000000, // x = 0.5f63 0x3f3504f3, // x = sqrt(2)/2, FE_DOWNWARD64 0x3f3504f4, // x = sqrt(2)/2, FE_UPWARD65 0x3f5db3d7, // x = sqrt(3)/2, FE_DOWNWARD66 0x3f5db3d8, // x = sqrt(3)/2, FE_UPWARD67 0x3f800000, // x = 1.0f68 0x40000000, // x = 2.0f69 0x3d09bf86, // x = 0x1.137f0cp-5f70 0x3de5fa1e, // x = 0x1.cbf43cp-4f71 0x3f083a1a, // x = 0x1.107434p-1f72 0x3f7741b6, // x = 0x1.ee836cp-1f73 };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::Asin, x,78 LIBC_NAMESPACE::asinf(x), TOLERANCE + 0.5);79 EXPECT_MPFR_MATCH_ALL_ROUNDING(mpfr::Operation::Asin, -x,80 LIBC_NAMESPACE::asinf(-x), TOLERANCE + 0.5);81 }82}83