| 1 | //===-- Utility class to test different flavors of hypot ------------------===// |
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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 | #ifndef LLVM_LIBC_TEST_SRC_MATH_HYPOTTEST_H |
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| 10 | #define LLVM_LIBC_TEST_SRC_MATH_HYPOTTEST_H |
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| 11 | |
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| 12 | #include "src/__support/macros/properties/architectures.h" |
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| 13 | #include "test/UnitTest/FPMatcher.h" |
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| 14 | #include "test/UnitTest/Test.h" |
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| 15 | |
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| 16 | template <typename T> |
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| 17 | struct HypotTestTemplate : public LIBC_NAMESPACE::testing::Test { |
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| 18 | using Func = T (*)(T, T); |
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| 19 | |
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| 20 | DECLARE_SPECIAL_CONSTANTS(T) |
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| 21 | |
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| 22 | void test_special_numbers(Func func) { |
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| 23 | constexpr int N = 4; |
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| 24 | // Pythagorean triples. |
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| 25 | constexpr T PYT[N][3] = {{3, 4, 5}, {5, 12, 13}, {8, 15, 17}, {7, 24, 25}}; |
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| 26 | |
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| 27 | #ifndef LIBC_TARGET_ARCH_IS_NVPTX |
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| 28 | // TODO: Investigate why sNaN tests are failing on nVidia. |
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| 29 | // https://github.com/llvm/llvm-project/issues/99706. |
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| 30 | EXPECT_FP_EQ(func(inf, sNaN), aNaN); |
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| 31 | EXPECT_FP_EQ(func(sNaN, neg_inf), aNaN); |
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| 32 | #endif // !LIBC_TARGET_ARCH_IS_NVPTX |
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| 33 | |
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| 34 | EXPECT_FP_EQ(func(inf, aNaN), inf); |
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| 35 | EXPECT_FP_EQ(func(aNaN, neg_inf), inf); |
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| 36 | EXPECT_FP_EQ(func(aNaN, aNaN), aNaN); |
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| 37 | EXPECT_FP_EQ(func(aNaN, zero), aNaN); |
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| 38 | EXPECT_FP_EQ(func(neg_zero, aNaN), aNaN); |
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| 39 | |
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| 40 | for (int i = 0; i < N; ++i) { |
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| 41 | EXPECT_FP_EQ_ALL_ROUNDING(PYT[i][2], func(PYT[i][0], PYT[i][1])); |
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| 42 | EXPECT_FP_EQ_ALL_ROUNDING(PYT[i][2], func(-PYT[i][0], PYT[i][1])); |
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| 43 | EXPECT_FP_EQ_ALL_ROUNDING(PYT[i][2], func(PYT[i][0], -PYT[i][1])); |
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| 44 | EXPECT_FP_EQ_ALL_ROUNDING(PYT[i][2], func(-PYT[i][0], -PYT[i][1])); |
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| 45 | |
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| 46 | EXPECT_FP_EQ_ALL_ROUNDING(PYT[i][2], func(PYT[i][1], PYT[i][0])); |
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| 47 | EXPECT_FP_EQ_ALL_ROUNDING(PYT[i][2], func(-PYT[i][1], PYT[i][0])); |
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| 48 | EXPECT_FP_EQ_ALL_ROUNDING(PYT[i][2], func(PYT[i][1], -PYT[i][0])); |
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| 49 | EXPECT_FP_EQ_ALL_ROUNDING(PYT[i][2], func(-PYT[i][1], -PYT[i][0])); |
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| 50 | } |
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| 51 | } |
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| 52 | }; |
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| 53 | |
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| 54 | #endif // LLVM_LIBC_TEST_SRC_MATH_HYPOTTEST_H |
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| 55 | |
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