57 lines · cpp
1//===-- Unittests for cos -------------------------------------------------===//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-exception6//7//===----------------------------------------------------------------------===//8 9#include "src/math/cos.h"10#include "test/UnitTest/FPMatcher.h"11#include "test/UnitTest/Test.h"12 13using LlvmLibcCosTest = LIBC_NAMESPACE::testing::FPTest<double>;14 15using LIBC_NAMESPACE::testing::tlog;16 17TEST_F(LlvmLibcCosTest, SpecialNumbers) {18 EXPECT_FP_EQ_WITH_EXCEPTION(aNaN, LIBC_NAMESPACE::cos(sNaN), FE_INVALID);19 EXPECT_MATH_ERRNO(0);20 21 EXPECT_FP_EQ_ALL_ROUNDING(aNaN, LIBC_NAMESPACE::cos(aNaN));22 EXPECT_FP_EQ_ALL_ROUNDING(aNaN, LIBC_NAMESPACE::cos(inf));23 EXPECT_FP_EQ_ALL_ROUNDING(aNaN, LIBC_NAMESPACE::cos(neg_inf));24 EXPECT_FP_EQ_ALL_ROUNDING(1.0, LIBC_NAMESPACE::cos(zero));25 EXPECT_FP_EQ_ALL_ROUNDING(1.0, LIBC_NAMESPACE::cos(neg_zero));26 EXPECT_FP_EQ(1.0, LIBC_NAMESPACE::cos(0x1.0p-50));27 EXPECT_FP_EQ(1.0, LIBC_NAMESPACE::cos(min_normal));28 EXPECT_FP_EQ(1.0, LIBC_NAMESPACE::cos(min_denormal));29}30 31#ifdef LIBC_TEST_FTZ_DAZ32 33using namespace LIBC_NAMESPACE::testing;34 35TEST_F(LlvmLibcCosTest, FTZMode) {36 ModifyMXCSR mxcsr(FTZ);37 38 EXPECT_FP_EQ(1.0, LIBC_NAMESPACE::cos(min_denormal));39 EXPECT_FP_EQ(1.0, LIBC_NAMESPACE::cos(max_denormal));40}41 42TEST_F(LlvmLibcCosTest, DAZMode) {43 ModifyMXCSR mxcsr(DAZ);44 45 EXPECT_FP_EQ(1.0, LIBC_NAMESPACE::cos(min_denormal));46 EXPECT_FP_EQ(1.0, LIBC_NAMESPACE::cos(max_denormal));47}48 49TEST_F(LlvmLibcCosTest, FTZDAZMode) {50 ModifyMXCSR mxcsr(FTZ | DAZ);51 52 EXPECT_FP_EQ(1.0, LIBC_NAMESPACE::cos(min_denormal));53 EXPECT_FP_EQ(1.0, LIBC_NAMESPACE::cos(max_denormal));54}55 56#endif57