1 //===-- Unittests for sinhf -----------------------------------------------===// 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-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "hdr/math_macros.h" 10 #include "src/__support/CPP/array.h" 11 #include "src/__support/FPUtil/FPBits.h" 12 #include "src/errno/libc_errno.h" 13 #include "src/math/sinhf.h" 14 #include "test/UnitTest/FPMatcher.h" 15 #include "test/UnitTest/Test.h" 16 #include "utils/MPFRWrapper/MPFRUtils.h" 17 18 #include <stdint.h> 19 20 using LlvmLibcSinhfTest = LIBC_NAMESPACE::testing::FPTest<float>; 21 22 namespace mpfr = LIBC_NAMESPACE::testing::mpfr; 23 24 TEST_F(LlvmLibcSinhfTest, SpecialNumbers) { 25 LIBC_NAMESPACE::libc_errno = 0; 26 27 EXPECT_FP_EQ(aNaN, LIBC_NAMESPACE::sinhf(aNaN)); 28 EXPECT_MATH_ERRNO(0); 29 30 EXPECT_FP_EQ(0.0f, LIBC_NAMESPACE::sinhf(0.0f)); 31 EXPECT_MATH_ERRNO(0); 32 33 EXPECT_FP_EQ(-0.0f, LIBC_NAMESPACE::sinhf(-0.0f)); 34 EXPECT_MATH_ERRNO(0); 35 36 EXPECT_FP_EQ(inf, LIBC_NAMESPACE::sinhf(inf)); 37 EXPECT_MATH_ERRNO(0); 38 39 EXPECT_FP_EQ(neg_inf, LIBC_NAMESPACE::sinhf(neg_inf)); 40 EXPECT_MATH_ERRNO(0); 41 } 42 43 TEST_F(LlvmLibcSinhfTest, InFloatRange) { 44 constexpr uint32_t COUNT = 100'000; 45 constexpr uint32_t STEP = UINT32_MAX / COUNT; 46 for (uint32_t i = 0, v = 0; i <= COUNT; ++i, v += STEP) { 47 float x = FPBits(v).get_val(); 48 if (FPBits(v).is_nan() || FPBits(v).is_inf()) 49 continue; 50 ASSERT_MPFR_MATCH(mpfr::Operation::Sinh, x, LIBC_NAMESPACE::sinhf(x), 0.5); 51 } 52 } 53 54 // For small values, sinh(x) is x. 55 TEST_F(LlvmLibcSinhfTest, SmallValues) { 56 float x = FPBits(uint32_t(0x17800000)).get_val(); 57 float result = LIBC_NAMESPACE::sinhf(x); 58 EXPECT_MPFR_MATCH(mpfr::Operation::Sinh, x, result, 0.5); 59 EXPECT_FP_EQ(x, result); 60 61 x = FPBits(uint32_t(0x00400000)).get_val(); 62 result = LIBC_NAMESPACE::sinhf(x); 63 EXPECT_MPFR_MATCH(mpfr::Operation::Sinh, x, result, 0.5); 64 EXPECT_FP_EQ(x, result); 65 } 66 67 TEST_F(LlvmLibcSinhfTest, Overflow) { 68 LIBC_NAMESPACE::libc_errno = 0; 69 EXPECT_FP_EQ_WITH_EXCEPTION( 70 inf, LIBC_NAMESPACE::sinhf(FPBits(0x7f7fffffU).get_val()), FE_OVERFLOW); 71 EXPECT_MATH_ERRNO(ERANGE); 72 73 EXPECT_FP_EQ_WITH_EXCEPTION( 74 inf, LIBC_NAMESPACE::sinhf(FPBits(0x42cffff8U).get_val()), FE_OVERFLOW); 75 EXPECT_MATH_ERRNO(ERANGE); 76 77 EXPECT_FP_EQ_WITH_EXCEPTION( 78 inf, LIBC_NAMESPACE::sinhf(FPBits(0x42d00008U).get_val()), FE_OVERFLOW); 79 EXPECT_MATH_ERRNO(ERANGE); 80 } 81 82 TEST_F(LlvmLibcSinhfTest, ExceptionalValues) { 83 float x = FPBits(uint32_t(0x3a12'85ffU)).get_val(); 84 EXPECT_MPFR_MATCH_ALL_ROUNDING(mpfr::Operation::Sinh, x, 85 LIBC_NAMESPACE::sinhf(x), 0.5); 86 87 x = -FPBits(uint32_t(0x3a12'85ffU)).get_val(); 88 EXPECT_MPFR_MATCH_ALL_ROUNDING(mpfr::Operation::Sinh, x, 89 LIBC_NAMESPACE::sinhf(x), 0.5); 90 } 91