68 lines · cpp
1//===-- Unittests for log1p -----------------------------------------------===//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 "src/__support/FPUtil/FPBits.h"12#include "src/math/log1p.h"13#include "test/UnitTest/FPMatcher.h"14#include "test/UnitTest/Test.h"15 16using LlvmLibcLog1pTest = LIBC_NAMESPACE::testing::FPTest<double>;17 18TEST_F(LlvmLibcLog1pTest, SpecialNumbers) {19 EXPECT_FP_EQ_WITH_EXCEPTION(aNaN, LIBC_NAMESPACE::log1p(sNaN), FE_INVALID);20 EXPECT_MATH_ERRNO(0);21 22 EXPECT_FP_EQ(aNaN, LIBC_NAMESPACE::log1p(aNaN));23 EXPECT_FP_EQ(inf, LIBC_NAMESPACE::log1p(inf));24 EXPECT_MATH_ERRNO(0);25 EXPECT_FP_IS_NAN_WITH_EXCEPTION(LIBC_NAMESPACE::log1p(neg_inf), FE_INVALID);26 EXPECT_MATH_ERRNO(EDOM);27 EXPECT_FP_IS_NAN_WITH_EXCEPTION(LIBC_NAMESPACE::log1p(-2.0), FE_INVALID);28 EXPECT_MATH_ERRNO(EDOM);29 EXPECT_FP_EQ(zero, LIBC_NAMESPACE::log1p(0.0));30 EXPECT_FP_EQ(neg_zero, LIBC_NAMESPACE::log1p(-0.0));31 EXPECT_FP_EQ_WITH_EXCEPTION(neg_inf, LIBC_NAMESPACE::log1p(-1.0),32 FE_DIVBYZERO);33 EXPECT_MATH_ERRNO(ERANGE);34 35 EXPECT_FP_EQ(0x1.62c829bf8fd9dp9,36 LIBC_NAMESPACE::log1p(0x1.9b536cac3a09dp1023));37}38 39#ifdef LIBC_TEST_FTZ_DAZ40 41using namespace LIBC_NAMESPACE::testing;42 43TEST_F(LlvmLibcLog1pTest, FTZMode) {44 ModifyMXCSR mxcsr(FTZ);45 46 EXPECT_FP_EQ(0.0, LIBC_NAMESPACE::log1p(min_denormal));47 EXPECT_FP_EQ(0x1.62c829bf8fd9dp9,48 LIBC_NAMESPACE::log1p(0x1.9b536cac3a09dp1023));49}50 51TEST_F(LlvmLibcLog1pTest, DAZMode) {52 ModifyMXCSR mxcsr(DAZ);53 54 EXPECT_FP_EQ(0.0, LIBC_NAMESPACE::log1p(min_denormal));55 EXPECT_FP_EQ(0x1.62c829bf8fd9dp9,56 LIBC_NAMESPACE::log1p(0x1.9b536cac3a09dp1023));57}58 59TEST_F(LlvmLibcLog1pTest, FTZDAZMode) {60 ModifyMXCSR mxcsr(FTZ | DAZ);61 62 EXPECT_FP_EQ(0.0, LIBC_NAMESPACE::log1p(min_denormal));63 EXPECT_FP_EQ(0x1.62c829bf8fd9dp9,64 LIBC_NAMESPACE::log1p(0x1.9b536cac3a09dp1023));65}66 67#endif68