65 lines · cpp
1//===-- Unittests for tanhf -----------------------------------------------===//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 "hdr/errno_macros.h"10#include "hdr/math_macros.h"11#include "hdr/stdint_proxy.h"12#include "src/__support/FPUtil/FPBits.h"13#include "src/math/tanhf.h"14#include "test/UnitTest/FPMatcher.h"15#include "test/UnitTest/Test.h"16 17using LlvmLibcTanhfTest = LIBC_NAMESPACE::testing::FPTest<float>;18 19TEST_F(LlvmLibcTanhfTest, SpecialNumbers) {20 EXPECT_FP_EQ_WITH_EXCEPTION(aNaN, LIBC_NAMESPACE::tanhf(sNaN), FE_INVALID);21 EXPECT_MATH_ERRNO(0);22 23 EXPECT_FP_EQ(aNaN, LIBC_NAMESPACE::tanhf(aNaN));24 EXPECT_MATH_ERRNO(0);25 26 EXPECT_FP_EQ(0.0f, LIBC_NAMESPACE::tanhf(0.0f));27 EXPECT_MATH_ERRNO(0);28 29 EXPECT_FP_EQ(-0.0f, LIBC_NAMESPACE::tanhf(-0.0f));30 EXPECT_MATH_ERRNO(0);31 32 EXPECT_FP_EQ(1.0f, LIBC_NAMESPACE::tanhf(inf));33 EXPECT_MATH_ERRNO(0);34 35 EXPECT_FP_EQ(-1.0f, LIBC_NAMESPACE::tanhf(neg_inf));36 EXPECT_MATH_ERRNO(0);37}38 39#ifdef LIBC_TEST_FTZ_DAZ40 41using namespace LIBC_NAMESPACE::testing;42 43TEST_F(LlvmLibcTanhfTest, FTZMode) {44 ModifyMXCSR mxcsr(FTZ);45 46 EXPECT_FP_EQ(0.0f, LIBC_NAMESPACE::tanhf(min_denormal));47 EXPECT_FP_EQ(0.0f, LIBC_NAMESPACE::tanhf(max_denormal));48}49 50TEST_F(LlvmLibcTanhfTest, DAZMode) {51 ModifyMXCSR mxcsr(DAZ);52 53 EXPECT_FP_EQ(0.0f, LIBC_NAMESPACE::tanhf(min_denormal));54 EXPECT_FP_EQ(0.0f, LIBC_NAMESPACE::tanhf(max_denormal));55}56 57TEST_F(LlvmLibcTanhfTest, FTZDAZMode) {58 ModifyMXCSR mxcsr(FTZ | DAZ);59 60 EXPECT_FP_EQ(0.0f, LIBC_NAMESPACE::tanhf(min_denormal));61 EXPECT_FP_EQ(0.0f, LIBC_NAMESPACE::tanhf(max_denormal));62}63 64#endif65