| //===-- 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 |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "utils/MPFRWrapper/MPFRUtils.h" |
| #include "utils/UnitTest/FPMatcher.h" |
| #include "utils/UnitTest/Test.h" |
| |
| #include <math.h> |
| |
| namespace mpfr = __llvm_libc::testing::mpfr; |
| |
| template <typename T> class FMaxTest : public __llvm_libc::testing::Test { |
| |
| DECLARE_SPECIAL_CONSTANTS(T) |
| |
| public: |
| typedef T (*FMaxFunc)(T, T); |
| |
| void testNaN(FMaxFunc func) { |
| EXPECT_FP_EQ(inf, func(aNaN, inf)); |
| EXPECT_FP_EQ(negInf, func(negInf, 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(FMaxFunc func) { |
| EXPECT_FP_EQ(inf, func(negInf, 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(FMaxFunc func) { |
| EXPECT_FP_EQ(inf, func(inf, negInf)); |
| EXPECT_FP_EQ(0.0, func(negInf, 0.0)); |
| EXPECT_FP_EQ(-0.0, func(-0.0, negInf)); |
| EXPECT_FP_EQ(T(-1.2345), func(negInf, T(-1.2345))); |
| EXPECT_FP_EQ(T(1.2345), func(T(1.2345), negInf)); |
| } |
| |
| void testBothZero(FMaxFunc 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(FMaxFunc func) { |
| constexpr UIntType count = 10000001; |
| constexpr UIntType step = UIntType(-1) / count; |
| for (UIntType i = 0, v = 0, w = UIntType(-1); i <= count; |
| ++i, v += step, w -= step) { |
| T x = T(FPBits(v)), y = T(FPBits(w)); |
| if (isnan(x) || isinf(x)) |
| continue; |
| if (isnan(y) || isinf(y)) |
| continue; |
| if ((x == 0) && (y == 0)) |
| continue; |
| |
| if (x > y) { |
| EXPECT_FP_EQ(x, func(x, y)); |
| } else { |
| EXPECT_FP_EQ(y, func(x, y)); |
| } |
| } |
| } |
| }; |
| |
| #define LIST_FMAX_TESTS(T, func) \ |
| using LlvmLibcFMaxTest = FMaxTest<T>; \ |
| TEST_F(LlvmLibcFMaxTest, NaN) { testNaN(&func); } \ |
| TEST_F(LlvmLibcFMaxTest, InfArg) { testInfArg(&func); } \ |
| TEST_F(LlvmLibcFMaxTest, NegInfArg) { testNegInfArg(&func); } \ |
| TEST_F(LlvmLibcFMaxTest, BothZero) { testBothZero(&func); } \ |
| TEST_F(LlvmLibcFMaxTest, Range) { testRange(&func); } |