d87eea35fa
This is the first step in preparation for: https://discourse.llvm.org/t/rfc-make-clang-builtin-math-functions-constexpr-with-llvm-libc-to-support-c-23-constexpr-math-functions/86450
51 lines
1.6 KiB
C++
51 lines
1.6 KiB
C++
//===-- Unittests for log2f16 ---------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "hdr/fenv_macros.h"
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#include "src/__support/FPUtil/cast.h"
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#include "src/__support/libc_errno.h"
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#include "src/math/log2f16.h"
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#include "test/UnitTest/FPMatcher.h"
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#include "test/UnitTest/Test.h"
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using LlvmLibcLog2f16Test = LIBC_NAMESPACE::testing::FPTest<float16>;
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TEST_F(LlvmLibcLog2f16Test, SpecialNumbers) {
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libc_errno = 0;
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EXPECT_FP_EQ_ALL_ROUNDING(aNaN, LIBC_NAMESPACE::log2f16(aNaN));
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EXPECT_MATH_ERRNO(0);
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EXPECT_FP_EQ_WITH_EXCEPTION(aNaN, LIBC_NAMESPACE::log2f16(sNaN), FE_INVALID);
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EXPECT_MATH_ERRNO(0);
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EXPECT_FP_EQ_ALL_ROUNDING(inf, LIBC_NAMESPACE::log2f16(inf));
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EXPECT_MATH_ERRNO(0);
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EXPECT_FP_EQ_ALL_ROUNDING(aNaN, LIBC_NAMESPACE::log2f16(neg_inf));
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EXPECT_MATH_ERRNO(EDOM);
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EXPECT_FP_EQ_WITH_EXCEPTION_ALL_ROUNDING(
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neg_inf, LIBC_NAMESPACE::log2f16(zero), FE_DIVBYZERO);
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EXPECT_MATH_ERRNO(0);
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EXPECT_FP_EQ_WITH_EXCEPTION_ALL_ROUNDING(
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neg_inf, LIBC_NAMESPACE::log2f16(neg_zero), FE_DIVBYZERO);
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EXPECT_MATH_ERRNO(0);
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EXPECT_FP_EQ_ALL_ROUNDING(
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zero,
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LIBC_NAMESPACE::log2f16(LIBC_NAMESPACE::fputil::cast<float16>(1.0)));
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EXPECT_MATH_ERRNO(0);
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EXPECT_FP_EQ_ALL_ROUNDING(
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aNaN,
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LIBC_NAMESPACE::log2f16(LIBC_NAMESPACE::fputil::cast<float16>(-1.0)));
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EXPECT_MATH_ERRNO(EDOM);
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}
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