| //===-- Utility class to test fmaximum_mag_num[f|l] -------------*- C++ -*-===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_LIBC_TEST_SRC_MATH_SMOKE_FMAXIMUMMAG_NUMTEST_H |
| #define LLVM_LIBC_TEST_SRC_MATH_SMOKE_FMAXIMUMMAG_NUMTEST_H |
| |
| #include "src/__support/CPP/algorithm.h" |
| #include "src/__support/FPUtil/BasicOperations.h" |
| #include "src/__support/FPUtil/FPBits.h" |
| #include "test/UnitTest/FEnvSafeTest.h" |
| #include "test/UnitTest/FPMatcher.h" |
| #include "test/UnitTest/Test.h" |
| |
| template <typename T> |
| class FMaximumMagNumTest : public LIBC_NAMESPACE::testing::FEnvSafeTest { |
| |
| DECLARE_SPECIAL_CONSTANTS(T) |
| |
| public: |
| typedef T (*FMaximumMagNumFunc)(T, T); |
| |
| void testNaN(FMaximumMagNumFunc func) { |
| EXPECT_FP_EQ(inf, func(aNaN, inf)); |
| EXPECT_FP_EQ_WITH_EXCEPTION(inf, func(sNaN, inf), FE_INVALID); |
| EXPECT_FP_EQ(neg_inf, func(neg_inf, aNaN)); |
| EXPECT_FP_EQ_WITH_EXCEPTION(neg_inf, func(neg_inf, sNaN), FE_INVALID); |
| EXPECT_EQ(FPBits(aNaN).uintval(), FPBits(func(aNaN, aNaN)).uintval()); |
| EXPECT_FP_EQ(0.0, func(aNaN, 0.0)); |
| EXPECT_FP_EQ(-0.0, func(-0.0, aNaN)); |
| EXPECT_FP_EQ_WITH_EXCEPTION(0.0, func(sNaN, 0.0), FE_INVALID); |
| EXPECT_FP_EQ_WITH_EXCEPTION(-0.0, func(-0.0, sNaN), FE_INVALID); |
| EXPECT_FP_EQ(T(-1.2345), func(aNaN, T(-1.2345))); |
| EXPECT_FP_EQ(T(1.2345), func(T(1.2345), aNaN)); |
| EXPECT_FP_EQ_WITH_EXCEPTION(T(-1.2345), func(sNaN, T(-1.2345)), FE_INVALID); |
| EXPECT_FP_EQ_WITH_EXCEPTION(T(1.2345), func(T(1.2345), sNaN), FE_INVALID); |
| EXPECT_FP_IS_NAN_WITH_EXCEPTION(func(aNaN, sNaN), FE_INVALID); |
| EXPECT_FP_IS_NAN_WITH_EXCEPTION(func(sNaN, aNaN), FE_INVALID); |
| EXPECT_EQ(FPBits(aNaN).uintval(), FPBits(func(aNaN, sNaN)).uintval()); |
| EXPECT_EQ(FPBits(aNaN).uintval(), FPBits(func(sNaN, aNaN)).uintval()); |
| EXPECT_EQ(FPBits(aNaN).uintval(), FPBits(func(sNaN, sNaN)).uintval()); |
| } |
| |
| void testInfArg(FMaximumMagNumFunc func) { |
| EXPECT_FP_EQ(inf, func(neg_inf, inf)); |
| EXPECT_FP_EQ(inf, func(inf, 0.0)); |
| EXPECT_FP_EQ(inf, func(-0.0, inf)); |
| EXPECT_FP_EQ(inf, func(inf, T(1.2345))); |
| EXPECT_FP_EQ(inf, func(T(-1.2345), inf)); |
| } |
| |
| void testNegInfArg(FMaximumMagNumFunc func) { |
| EXPECT_FP_EQ(inf, func(inf, neg_inf)); |
| EXPECT_FP_EQ(neg_inf, func(neg_inf, 0.0)); |
| EXPECT_FP_EQ(neg_inf, func(-0.0, neg_inf)); |
| EXPECT_FP_EQ(neg_inf, func(neg_inf, T(-1.2345))); |
| EXPECT_FP_EQ(neg_inf, func(T(1.2345), neg_inf)); |
| } |
| |
| void testBothZero(FMaximumMagNumFunc func) { |
| EXPECT_FP_EQ(0.0, func(0.0, 0.0)); |
| EXPECT_FP_EQ(0.0, func(-0.0, 0.0)); |
| EXPECT_FP_EQ(0.0, func(0.0, -0.0)); |
| EXPECT_FP_EQ(-0.0, func(-0.0, -0.0)); |
| } |
| |
| void testRange(FMaximumMagNumFunc func) { |
| constexpr int COUNT = 100'001; |
| constexpr StorageType STEP = LIBC_NAMESPACE::cpp::max( |
| static_cast<StorageType>(STORAGE_MAX / COUNT), StorageType(1)); |
| StorageType v = 0, w = STORAGE_MAX; |
| for (int i = 0; i <= COUNT; ++i, v += STEP, w -= STEP) { |
| FPBits xbits(v), ybits(w); |
| if (xbits.is_inf_or_nan()) |
| continue; |
| if (ybits.is_inf_or_nan()) |
| continue; |
| T x = xbits.get_val(); |
| T y = ybits.get_val(); |
| if ((x == 0) && (y == 0)) |
| continue; |
| |
| if (LIBC_NAMESPACE::fputil::abs(x) > LIBC_NAMESPACE::fputil::abs(y)) |
| EXPECT_FP_EQ(x, func(x, y)); |
| else |
| EXPECT_FP_EQ(y, func(x, y)); |
| } |
| } |
| }; |
| |
| #define LIST_FMAXIMUM_MAG_NUM_TESTS(T, func) \ |
| using LlvmLibcFMaximumMagNumTest = FMaximumMagNumTest<T>; \ |
| TEST_F(LlvmLibcFMaximumMagNumTest, NaN) { testNaN(&func); } \ |
| TEST_F(LlvmLibcFMaximumMagNumTest, InfArg) { testInfArg(&func); } \ |
| TEST_F(LlvmLibcFMaximumMagNumTest, NegInfArg) { testNegInfArg(&func); } \ |
| TEST_F(LlvmLibcFMaximumMagNumTest, BothZero) { testBothZero(&func); } \ |
| TEST_F(LlvmLibcFMaximumMagNumTest, Range) { testRange(&func); } |
| |
| #endif // LLVM_LIBC_TEST_SRC_MATH_SMOKE_FMAXIMUMMAG_NUMTEST_H |