1 //===-- Unittests for sin -------------------------------------------------===// 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 "src/__support/FPUtil/FPBits.h" 10 #include "src/math/sin.h" 11 #include "test/UnitTest/FPMatcher.h" 12 #include "test/UnitTest/Test.h" 13 #include "utils/MPFRWrapper/MPFRUtils.h" 14 15 #include "hdr/math_macros.h" 16 17 using LlvmLibcSinTest = LIBC_NAMESPACE::testing::FPTest<double>; 18 19 namespace mpfr = LIBC_NAMESPACE::testing::mpfr; 20 TEST_F(LlvmLibcSinTest,Range)21TEST_F(LlvmLibcSinTest, Range) { 22 static constexpr double _2pi = 6.283185307179586; 23 constexpr StorageType COUNT = 100'000; 24 constexpr StorageType STEP = STORAGE_MAX / COUNT; 25 for (StorageType i = 0, v = 0; i <= COUNT; ++i, v += STEP) { 26 double x = FPBits(v).get_val(); 27 // TODO: Expand the range of testing after range reduction is implemented. 28 if (isnan(x) || isinf(x) || x > _2pi || x < -_2pi) 29 continue; 30 31 ASSERT_MPFR_MATCH(mpfr::Operation::Sin, x, LIBC_NAMESPACE::sin(x), 1.0); 32 } 33 } 34