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//===-- Unittests for atanf -----------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "hdr/math_macros.h"
#include "src/__support/FPUtil/FPBits.h"
#include "src/math/atanf.h"
#include "test/UnitTest/FPMatcher.h"
#include "test/UnitTest/Test.h"
#include "hdr/stdint_proxy.h"
using LlvmLibcAtanfTest = LIBC_NAMESPACE::testing::FPTest<float>;
TEST_F(LlvmLibcAtanfTest, SpecialNumbers) {
EXPECT_FP_EQ_WITH_EXCEPTION(aNaN, LIBC_NAMESPACE::atanf(sNaN), FE_INVALID);
EXPECT_MATH_ERRNO(0);
// TODO: Strengthen errno,exception checks and remove these assert macros
// after new matchers/test fixtures are added
// https://github.com/llvm/llvm-project/issues/90653
LIBC_NAMESPACE::fputil::clear_except(FE_ALL_EXCEPT);
EXPECT_FP_EQ_ALL_ROUNDING(aNaN, LIBC_NAMESPACE::atanf(aNaN));
// TODO: Uncomment these checks later, RoundingMode affects running
// tests in this way https://github.com/llvm/llvm-project/issues/90653.
// EXPECT_FP_EXCEPTION(0);
EXPECT_MATH_ERRNO(0);
LIBC_NAMESPACE::fputil::clear_except(FE_ALL_EXCEPT);
EXPECT_FP_EQ_ALL_ROUNDING(0.0f, LIBC_NAMESPACE::atanf(0.0f));
// See above TODO
// EXPECT_FP_EXCEPTION(0);
EXPECT_MATH_ERRNO(0);
LIBC_NAMESPACE::fputil::clear_except(FE_ALL_EXCEPT);
EXPECT_FP_EQ_ALL_ROUNDING(-0.0f, LIBC_NAMESPACE::atanf(-0.0f));
// See above TODO
// EXPECT_FP_EXCEPTION(0);
EXPECT_MATH_ERRNO(0);
}
#ifdef LIBC_TEST_FTZ_DAZ
using namespace LIBC_NAMESPACE::testing;
TEST_F(LlvmLibcAtanfTest, FTZMode) {
ModifyMXCSR mxcsr(FTZ);
EXPECT_FP_EQ(0.0f, LIBC_NAMESPACE::atanf(min_denormal));
}
TEST_F(LlvmLibcAtanfTest, DAZMode) {
ModifyMXCSR mxcsr(DAZ);
EXPECT_FP_EQ(0.0f, LIBC_NAMESPACE::atanf(min_denormal));
}
TEST_F(LlvmLibcAtanfTest, FTZDAZMode) {
ModifyMXCSR mxcsr(FTZ | DAZ);
EXPECT_FP_EQ(0.0f, LIBC_NAMESPACE::atanf(min_denormal));
}
#endif
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