41 lines
1.4 KiB
C++
41 lines
1.4 KiB
C++
//===-- Exhaustive test for expf16 ----------------------------------------===//
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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 "src/math/expf16.h"
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#include "test/UnitTest/FPMatcher.h"
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#include "test/UnitTest/Test.h"
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#include "utils/MPFRWrapper/MPFRUtils.h"
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using LlvmLibcExpf16Test = LIBC_NAMESPACE::testing::FPTest<float16>;
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namespace mpfr = LIBC_NAMESPACE::testing::mpfr;
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// Range: [0, Inf];
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static constexpr uint16_t POS_START = 0x0000U;
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static constexpr uint16_t POS_STOP = 0x7c00U;
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// Range: [-Inf, 0];
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static constexpr uint16_t NEG_START = 0x8000U;
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static constexpr uint16_t NEG_STOP = 0xfc00U;
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TEST_F(LlvmLibcExpf16Test, PositiveRange) {
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for (uint16_t v = POS_START; v <= POS_STOP; ++v) {
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float16 x = FPBits(v).get_val();
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EXPECT_MPFR_MATCH_ALL_ROUNDING(mpfr::Operation::Exp, x,
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LIBC_NAMESPACE::expf16(x), 0.5);
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}
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}
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TEST_F(LlvmLibcExpf16Test, NegativeRange) {
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for (uint16_t v = NEG_START; v <= NEG_STOP; ++v) {
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float16 x = FPBits(v).get_val();
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EXPECT_MPFR_MATCH_ALL_ROUNDING(mpfr::Operation::Exp, x,
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LIBC_NAMESPACE::expf16(x), 0.5);
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}
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}
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