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1//===-- Utility class to test fminimum_mag_num[f|l] -------------*- C++ -*-===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#ifndef LLVM_LIBC_TEST_SRC_MATH_SMOKE_FMINIMUMMAG_NUMTEST_H10#define LLVM_LIBC_TEST_SRC_MATH_SMOKE_FMINIMUMMAG_NUMTEST_H11 12#include "src/__support/CPP/algorithm.h"13#include "src/__support/FPUtil/BasicOperations.h"14#include "src/__support/FPUtil/FPBits.h"15#include "test/UnitTest/FEnvSafeTest.h"16#include "test/UnitTest/FPMatcher.h"17#include "test/UnitTest/Test.h"18 19template <typename T>20class FMinimumMagNumTest : public LIBC_NAMESPACE::testing::FEnvSafeTest {21 22 DECLARE_SPECIAL_CONSTANTS(T)23 24public:25 typedef T (*FMinimumMagNumFunc)(T, T);26 27 void testNaN(FMinimumMagNumFunc func) {28 EXPECT_FP_EQ(inf, func(aNaN, inf));29 EXPECT_FP_EQ_WITH_EXCEPTION(inf, func(sNaN, inf), FE_INVALID);30 EXPECT_FP_EQ(neg_inf, func(neg_inf, aNaN));31 EXPECT_FP_EQ_WITH_EXCEPTION(neg_inf, func(neg_inf, sNaN), FE_INVALID);32 EXPECT_EQ(FPBits(aNaN).uintval(), FPBits(func(aNaN, aNaN)).uintval());33 EXPECT_FP_EQ(zero, func(aNaN, zero));34 EXPECT_FP_EQ(neg_zero, func(neg_zero, aNaN));35 EXPECT_FP_EQ_WITH_EXCEPTION(zero, func(sNaN, zero), FE_INVALID);36 EXPECT_FP_EQ_WITH_EXCEPTION(neg_zero, func(neg_zero, sNaN), FE_INVALID);37 EXPECT_FP_EQ(T(-1.2345), func(aNaN, T(-1.2345)));38 EXPECT_FP_EQ(T(1.2345), func(T(1.2345), aNaN));39 EXPECT_FP_EQ_WITH_EXCEPTION(T(-1.2345), func(sNaN, T(-1.2345)), FE_INVALID);40 EXPECT_FP_EQ_WITH_EXCEPTION(T(1.2345), func(T(1.2345), sNaN), FE_INVALID);41 EXPECT_FP_IS_NAN_WITH_EXCEPTION(func(aNaN, sNaN), FE_INVALID);42 EXPECT_FP_IS_NAN_WITH_EXCEPTION(func(sNaN, aNaN), FE_INVALID);43 EXPECT_EQ(FPBits(aNaN).uintval(), FPBits(func(aNaN, sNaN)).uintval());44 EXPECT_EQ(FPBits(aNaN).uintval(), FPBits(func(sNaN, aNaN)).uintval());45 EXPECT_EQ(FPBits(aNaN).uintval(), FPBits(func(sNaN, sNaN)).uintval());46 }47 48 void testInfArg(FMinimumMagNumFunc func) {49 EXPECT_FP_EQ(neg_inf, func(neg_inf, inf));50 EXPECT_FP_EQ(zero, func(inf, zero));51 EXPECT_FP_EQ(neg_zero, func(neg_zero, inf));52 EXPECT_FP_EQ(T(1.2345), func(inf, T(1.2345)));53 EXPECT_FP_EQ(T(-1.2345), func(T(-1.2345), inf));54 }55 56 void testNegInfArg(FMinimumMagNumFunc func) {57 EXPECT_FP_EQ(neg_inf, func(inf, neg_inf));58 EXPECT_FP_EQ(zero, func(neg_inf, zero));59 EXPECT_FP_EQ(neg_zero, func(neg_zero, neg_inf));60 EXPECT_FP_EQ(T(-1.2345), func(neg_inf, T(-1.2345)));61 EXPECT_FP_EQ(T(1.2345), func(T(1.2345), neg_inf));62 }63 64 void testBothZero(FMinimumMagNumFunc func) {65 EXPECT_FP_EQ(zero, func(zero, zero));66 EXPECT_FP_EQ(neg_zero, func(neg_zero, zero));67 EXPECT_FP_EQ(neg_zero, func(zero, neg_zero));68 EXPECT_FP_EQ(neg_zero, func(neg_zero, neg_zero));69 }70 71 void testRange(FMinimumMagNumFunc func) {72 constexpr int COUNT = 100'001;73 constexpr StorageType STEP = LIBC_NAMESPACE::cpp::max(74 static_cast<StorageType>(STORAGE_MAX / COUNT), StorageType(1));75 StorageType v = 0, w = STORAGE_MAX;76 for (int i = 0; i <= COUNT; ++i, v += STEP, w -= STEP) {77 FPBits xbits(v), ybits(w);78 if (xbits.is_inf_or_nan())79 continue;80 if (ybits.is_inf_or_nan())81 continue;82 T x = xbits.get_val();83 T y = ybits.get_val();84 if ((x == 0) && (y == 0))85 continue;86 87 if (LIBC_NAMESPACE::fputil::abs(x) > LIBC_NAMESPACE::fputil::abs(y))88 EXPECT_FP_EQ(y, func(x, y));89 else90 EXPECT_FP_EQ(x, func(x, y));91 }92 }93};94 95#define LIST_FMINIMUM_MAG_NUM_TESTS(T, func) \96 using LlvmLibcFMinimumMagNumTest = FMinimumMagNumTest<T>; \97 TEST_F(LlvmLibcFMinimumMagNumTest, NaN) { testNaN(&func); } \98 TEST_F(LlvmLibcFMinimumMagNumTest, InfArg) { testInfArg(&func); } \99 TEST_F(LlvmLibcFMinimumMagNumTest, NegInfArg) { testNegInfArg(&func); } \100 TEST_F(LlvmLibcFMinimumMagNumTest, BothZero) { testBothZero(&func); } \101 TEST_F(LlvmLibcFMinimumMagNumTest, Range) { testRange(&func); }102 103#endif // LLVM_LIBC_TEST_SRC_MATH_SMOKE_FMINIMUMMAG_NUMTEST_H104