//===-- Utility class to test fmin[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_FMINTEST_H #define LLVM_LIBC_TEST_SRC_MATH_FMINTEST_H #include "src/__support/FPUtil/FPBits.h" #include "test/UnitTest/FEnvSafeTest.h" #include "test/UnitTest/FPMatcher.h" #include "test/UnitTest/Test.h" #include "utils/MPFRWrapper/MPFRUtils.h" #include "hdr/math_macros.h" namespace mpfr = LIBC_NAMESPACE::testing::mpfr; template class FMinTest : public LIBC_NAMESPACE::testing::FEnvSafeTest { DECLARE_SPECIAL_CONSTANTS(T) public: typedef T (*FMinFunc)(T, T); void testNaN(FMinFunc func) { EXPECT_FP_EQ(inf, func(aNaN, inf)); EXPECT_FP_EQ(neg_inf, func(neg_inf, aNaN)); EXPECT_FP_EQ(0.0, func(aNaN, 0.0)); EXPECT_FP_EQ(-0.0, func(-0.0, aNaN)); 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(aNaN, func(aNaN, aNaN)); } void testInfArg(FMinFunc func) { EXPECT_FP_EQ(neg_inf, func(neg_inf, inf)); EXPECT_FP_EQ(0.0, func(inf, 0.0)); EXPECT_FP_EQ(-0.0, func(-0.0, inf)); EXPECT_FP_EQ(T(1.2345), func(inf, T(1.2345))); EXPECT_FP_EQ(T(-1.2345), func(T(-1.2345), inf)); } void testNegInfArg(FMinFunc func) { EXPECT_FP_EQ(neg_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(FMinFunc 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(FMinFunc func) { constexpr StorageType COUNT = 100'001; constexpr StorageType STEP = STORAGE_MAX / COUNT; for (StorageType i = 0, v = 0, w = STORAGE_MAX; i <= COUNT; ++i, v += STEP, w -= STEP) { T x = FPBits(v).get_val(), y = FPBits(w).get_val(); if (FPBits(v).is_nan() || FPBits(v).is_inf()) continue; if (FPBits(w).is_nan() || FPBits(w).is_inf()) continue; if ((x == 0) && (y == 0)) continue; if (x > y) { EXPECT_FP_EQ(y, func(x, y)); } else { EXPECT_FP_EQ(x, func(x, y)); } } } }; #define LIST_FMIN_TESTS(T, func) \ using LlvmLibcFMinTest = FMinTest; \ TEST_F(LlvmLibcFMinTest, NaN) { testNaN(&func); } \ TEST_F(LlvmLibcFMinTest, InfArg) { testInfArg(&func); } \ TEST_F(LlvmLibcFMinTest, NegInfArg) { testNegInfArg(&func); } \ TEST_F(LlvmLibcFMinTest, BothZero) { testBothZero(&func); } \ TEST_F(LlvmLibcFMinTest, Range) { testRange(&func); } #endif // LLVM_LIBC_TEST_SRC_MATH_FMINTEST_H