71 lines · cpp
1//===-- Unittests for 10^x ------------------------------------------------===//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/exp10.h"14#include "test/UnitTest/FPMatcher.h"15#include "test/UnitTest/Test.h"16 17using LlvmLibcExp10Test = LIBC_NAMESPACE::testing::FPTest<double>;18 19TEST_F(LlvmLibcExp10Test, SpecialNumbers) {20 EXPECT_FP_EQ_WITH_EXCEPTION(aNaN, LIBC_NAMESPACE::exp10(sNaN), FE_INVALID);21 EXPECT_MATH_ERRNO(0);22 23 EXPECT_FP_EQ(aNaN, LIBC_NAMESPACE::exp10(aNaN));24 EXPECT_MATH_ERRNO(0);25 EXPECT_FP_EQ(inf, LIBC_NAMESPACE::exp10(inf));26 EXPECT_MATH_ERRNO(0);27 EXPECT_FP_EQ_ALL_ROUNDING(zero, LIBC_NAMESPACE::exp10(neg_inf));28 EXPECT_MATH_ERRNO(0);29 30 EXPECT_FP_EQ_WITH_EXCEPTION(zero, LIBC_NAMESPACE::exp10(-0x1.0p20),31 FE_UNDERFLOW);32 EXPECT_MATH_ERRNO(ERANGE);33 EXPECT_FP_EQ_WITH_EXCEPTION(inf, LIBC_NAMESPACE::exp10(0x1.0p20),34 FE_OVERFLOW);35 EXPECT_MATH_ERRNO(ERANGE);36 37 EXPECT_FP_EQ_ALL_ROUNDING(1.0, LIBC_NAMESPACE::exp10(0.0));38 EXPECT_FP_EQ_ALL_ROUNDING(1.0, LIBC_NAMESPACE::exp10(-0.0));39 40 EXPECT_FP_EQ_ALL_ROUNDING(10.0, LIBC_NAMESPACE::exp10(1.0));41 EXPECT_FP_EQ_ALL_ROUNDING(100.0, LIBC_NAMESPACE::exp10(2.0));42 EXPECT_FP_EQ_ALL_ROUNDING(1000.0, LIBC_NAMESPACE::exp10(3.0));43}44 45#ifdef LIBC_TEST_FTZ_DAZ46 47using namespace LIBC_NAMESPACE::testing;48 49TEST_F(LlvmLibcExp10Test, FTZMode) {50 ModifyMXCSR mxcsr(FTZ);51 52 EXPECT_FP_EQ(1.0, LIBC_NAMESPACE::exp10(min_denormal));53 EXPECT_FP_EQ(1.0, LIBC_NAMESPACE::exp10(max_denormal));54}55 56TEST_F(LlvmLibcExp10Test, DAZMode) {57 ModifyMXCSR mxcsr(DAZ);58 59 EXPECT_FP_EQ(1.0, LIBC_NAMESPACE::exp10(min_denormal));60 EXPECT_FP_EQ(1.0, LIBC_NAMESPACE::exp10(max_denormal));61}62 63TEST_F(LlvmLibcExp10Test, FTZDAZMode) {64 ModifyMXCSR mxcsr(FTZ | DAZ);65 66 EXPECT_FP_EQ(1.0, LIBC_NAMESPACE::exp10(min_denormal));67 EXPECT_FP_EQ(1.0, LIBC_NAMESPACE::exp10(max_denormal));68}69 70#endif71