1 //===-- Unittests for atanf -----------------------------------------------===// 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/FPUtil/FPBits.h" 11 #include "src/errno/libc_errno.h" 12 #include "src/math/atanf.h" 13 #include "test/UnitTest/FPMatcher.h" 14 #include "test/UnitTest/Test.h" 15 16 #include <stdint.h> 17 18 using LlvmLibcAtanfTest = LIBC_NAMESPACE::testing::FPTest<float>; 19 20 TEST_F(LlvmLibcAtanfTest, SpecialNumbers) { 21 LIBC_NAMESPACE::libc_errno = 0; 22 23 // TODO: Strengthen errno,exception checks and remove these assert macros 24 // after new matchers/test fixtures are added 25 // https://github.com/llvm/llvm-project/issues/90653 26 LIBC_NAMESPACE::fputil::clear_except(FE_ALL_EXCEPT); 27 EXPECT_FP_EQ_ALL_ROUNDING(aNaN, LIBC_NAMESPACE::atanf(aNaN)); 28 // TODO: Uncomment these checks later, RoundingMode affects running 29 // tests in this way https://github.com/llvm/llvm-project/issues/90653. 30 // EXPECT_FP_EXCEPTION(0); 31 EXPECT_MATH_ERRNO(0); 32 33 LIBC_NAMESPACE::fputil::clear_except(FE_ALL_EXCEPT); 34 EXPECT_FP_EQ_ALL_ROUNDING(0.0f, LIBC_NAMESPACE::atanf(0.0f)); 35 // See above TODO 36 // EXPECT_FP_EXCEPTION(0); 37 EXPECT_MATH_ERRNO(0); 38 39 LIBC_NAMESPACE::fputil::clear_except(FE_ALL_EXCEPT); 40 EXPECT_FP_EQ_ALL_ROUNDING(-0.0f, LIBC_NAMESPACE::atanf(-0.0f)); 41 // See above TODO 42 // EXPECT_FP_EXCEPTION(0); 43 EXPECT_MATH_ERRNO(0); 44 } 45 46 #ifdef LIBC_TEST_FTZ_DAZ 47 48 using namespace LIBC_NAMESPACE::testing; 49 50 TEST_F(LlvmLibcAtanfTest, FTZMode) { 51 ModifyMXCSR mxcsr(FTZ); 52 53 EXPECT_FP_EQ(0.0f, LIBC_NAMESPACE::atanf(min_denormal)); 54 } 55 56 TEST_F(LlvmLibcAtanfTest, DAZMode) { 57 ModifyMXCSR mxcsr(DAZ); 58 59 EXPECT_FP_EQ(0.0f, LIBC_NAMESPACE::atanf(min_denormal)); 60 } 61 62 TEST_F(LlvmLibcAtanfTest, FTZDAZMode) { 63 ModifyMXCSR mxcsr(FTZ | DAZ); 64 65 EXPECT_FP_EQ(0.0f, LIBC_NAMESPACE::atanf(min_denormal)); 66 } 67 68 #endif 69