62 lines · cpp
1//===-- Unittests for expf16 ----------------------------------------------===//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/fenv_macros.h"11#include "src/__support/FPUtil/cast.h"12#include "src/math/expf16.h"13#include "test/UnitTest/FPMatcher.h"14#include "test/UnitTest/Test.h"15 16using LlvmLibcExpf16Test = LIBC_NAMESPACE::testing::FPTest<float16>;17 18TEST_F(LlvmLibcExpf16Test, SpecialNumbers) {19 EXPECT_FP_IS_NAN(LIBC_NAMESPACE::expf16(aNaN));20 EXPECT_MATH_ERRNO(0);21 22 EXPECT_FP_IS_NAN_WITH_EXCEPTION(LIBC_NAMESPACE::expf16(sNaN), FE_INVALID);23 EXPECT_MATH_ERRNO(0);24 25 EXPECT_FP_EQ_ALL_ROUNDING(inf, LIBC_NAMESPACE::expf16(inf));26 EXPECT_MATH_ERRNO(0);27 28 EXPECT_FP_EQ_ALL_ROUNDING(zero, LIBC_NAMESPACE::expf16(neg_inf));29 EXPECT_MATH_ERRNO(0);30 31 EXPECT_FP_EQ_ALL_ROUNDING(LIBC_NAMESPACE::fputil::cast<float16>(1.0f),32 LIBC_NAMESPACE::expf16(zero));33 EXPECT_MATH_ERRNO(0);34 35 EXPECT_FP_EQ_ALL_ROUNDING(LIBC_NAMESPACE::fputil::cast<float16>(1.0f),36 LIBC_NAMESPACE::expf16(neg_zero));37 EXPECT_MATH_ERRNO(0);38}39 40TEST_F(LlvmLibcExpf16Test, Overflow) {41 EXPECT_FP_EQ_WITH_EXCEPTION(inf, LIBC_NAMESPACE::expf16(max_normal),42 FE_OVERFLOW);43 EXPECT_MATH_ERRNO(ERANGE);44 45 EXPECT_FP_EQ_WITH_EXCEPTION(46 inf, LIBC_NAMESPACE::expf16(LIBC_NAMESPACE::fputil::cast<float16>(12.0)),47 FE_OVERFLOW);48 EXPECT_MATH_ERRNO(ERANGE);49}50 51TEST_F(LlvmLibcExpf16Test, Underflow) {52 EXPECT_FP_EQ_WITH_EXCEPTION(zero, LIBC_NAMESPACE::expf16(neg_max_normal),53 FE_UNDERFLOW | FE_INEXACT);54 EXPECT_MATH_ERRNO(ERANGE);55 56 EXPECT_FP_EQ_WITH_EXCEPTION(57 zero,58 LIBC_NAMESPACE::expf16(LIBC_NAMESPACE::fputil::cast<float16>(-18.0)),59 FE_UNDERFLOW | FE_INEXACT);60 EXPECT_MATH_ERRNO(ERANGE);61}62