| 1 | //===-- Exhaustive test for expf16 ----------------------------------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | #include "src/math/expf16.h" |
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| 10 | #include "test/UnitTest/FPMatcher.h" |
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| 11 | #include "test/UnitTest/Test.h" |
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| 12 | #include "utils/MPFRWrapper/MPFRUtils.h" |
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| 13 | |
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| 14 | using LlvmLibcExpf16Test = LIBC_NAMESPACE::testing::FPTest<float16>; |
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| 15 | |
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| 16 | namespace mpfr = LIBC_NAMESPACE::testing::mpfr; |
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| 17 | |
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| 18 | // Range: [0, Inf]; |
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| 19 | static constexpr uint16_t POS_START = 0x0000U; |
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| 20 | static constexpr uint16_t POS_STOP = 0x7c00U; |
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| 21 | |
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| 22 | // Range: [-Inf, 0]; |
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| 23 | static constexpr uint16_t NEG_START = 0x8000U; |
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| 24 | static constexpr uint16_t NEG_STOP = 0xfc00U; |
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| 25 | |
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| 26 | TEST_F(LlvmLibcExpf16Test, PositiveRange) { |
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| 27 | for (uint16_t v = POS_START; v <= POS_STOP; ++v) { |
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| 28 | float16 x = FPBits(v).get_val(); |
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| 29 | EXPECT_MPFR_MATCH_ALL_ROUNDING(mpfr::Operation::Exp, x, |
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| 30 | LIBC_NAMESPACE::expf16(x), 0.5); |
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| 31 | } |
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| 32 | } |
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| 33 | |
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| 34 | TEST_F(LlvmLibcExpf16Test, NegativeRange) { |
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| 35 | for (uint16_t v = NEG_START; v <= NEG_STOP; ++v) { |
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| 36 | float16 x = FPBits(v).get_val(); |
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| 37 | EXPECT_MPFR_MATCH_ALL_ROUNDING(mpfr::Operation::Exp, x, |
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| 38 | LIBC_NAMESPACE::expf16(x), 0.5); |
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| 39 | } |
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| 40 | } |
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| 41 | |
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