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//===-- Utility class to test different flavors of totalorder ---*- 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 LIBC_TEST_SRC_MATH_SMOKE_TOTALORDERTEST_H
#define LIBC_TEST_SRC_MATH_SMOKE_TOTALORDERTEST_H
#include "test/UnitTest/FEnvSafeTest.h"
#include "test/UnitTest/FPMatcher.h"
#include "test/UnitTest/Test.h"
using LIBC_NAMESPACE::Sign;
template <typename T>
class TotalOrderTestTemplate : public LIBC_NAMESPACE::testing::FEnvSafeTest {
DECLARE_SPECIAL_CONSTANTS(T)
public:
typedef int (*TotalOrderFunc)(const T *, const T *);
bool funcWrapper(TotalOrderFunc func, T x, T y) { return func(&x, &y) != 0; }
void testXLesserThanY(TotalOrderFunc func) {
EXPECT_TRUE(funcWrapper(func, neg_inf, inf));
EXPECT_TRUE(funcWrapper(func, T(0.0), T(0.1)));
EXPECT_TRUE(funcWrapper(func, T(0.0), T(123.38)));
EXPECT_TRUE(funcWrapper(func, T(-0.1), T(0.0)));
EXPECT_TRUE(funcWrapper(func, T(-123.38), T(0.0)));
EXPECT_TRUE(funcWrapper(func, T(-0.1), T(0.1)));
EXPECT_TRUE(funcWrapper(func, T(-123.38), T(123.38)));
}
void testXGreaterThanY(TotalOrderFunc func) {
EXPECT_FALSE(funcWrapper(func, inf, neg_inf));
EXPECT_FALSE(funcWrapper(func, T(0.0), T(-0.1)));
EXPECT_FALSE(funcWrapper(func, T(0.0), T(-123.38)));
EXPECT_FALSE(funcWrapper(func, T(0.1), T(0.0)));
EXPECT_FALSE(funcWrapper(func, T(123.38), T(0.0)));
EXPECT_FALSE(funcWrapper(func, T(0.1), T(-0.1)));
EXPECT_FALSE(funcWrapper(func, T(123.38), T(-123.38)));
}
void testXEqualToY(TotalOrderFunc func) {
EXPECT_TRUE(funcWrapper(func, inf, inf));
EXPECT_TRUE(funcWrapper(func, neg_inf, neg_inf));
EXPECT_TRUE(funcWrapper(func, T(-0.0), T(0.0)));
EXPECT_FALSE(funcWrapper(func, T(0.0), T(-0.0)));
EXPECT_TRUE(funcWrapper(func, T(0.0), T(0.0)));
EXPECT_TRUE(funcWrapper(func, T(-0.0), T(-0.0)));
EXPECT_TRUE(funcWrapper(func, T(0.1), T(0.1)));
EXPECT_TRUE(funcWrapper(func, T(-0.1), T(-0.1)));
EXPECT_TRUE(funcWrapper(func, T(123.38), T(123.38)));
EXPECT_TRUE(funcWrapper(func, T(-123.38), T(-123.38)));
}
void testSingleNaN(TotalOrderFunc func) {
EXPECT_TRUE(funcWrapper(func, neg_aNaN, T(0.0)));
EXPECT_TRUE(funcWrapper(func, neg_aNaN, T(0.1)));
EXPECT_TRUE(funcWrapper(func, neg_aNaN, T(123.38)));
EXPECT_FALSE(funcWrapper(func, T(0.0), neg_aNaN));
EXPECT_FALSE(funcWrapper(func, T(0.1), neg_aNaN));
EXPECT_FALSE(funcWrapper(func, T(123.38), neg_aNaN));
EXPECT_TRUE(funcWrapper(func, T(0.0), aNaN));
EXPECT_TRUE(funcWrapper(func, T(0.1), aNaN));
EXPECT_TRUE(funcWrapper(func, T(123.38), aNaN));
EXPECT_FALSE(funcWrapper(func, aNaN, T(0.0)));
EXPECT_FALSE(funcWrapper(func, aNaN, T(0.1)));
EXPECT_FALSE(funcWrapper(func, aNaN, T(123.38)));
}
void testNaNSigns(TotalOrderFunc func) {
EXPECT_TRUE(funcWrapper(func, neg_aNaN, aNaN));
EXPECT_TRUE(funcWrapper(func, neg_aNaN, sNaN));
EXPECT_TRUE(funcWrapper(func, neg_sNaN, aNaN));
EXPECT_TRUE(funcWrapper(func, neg_sNaN, sNaN));
EXPECT_FALSE(funcWrapper(func, aNaN, neg_aNaN));
EXPECT_FALSE(funcWrapper(func, aNaN, neg_sNaN));
EXPECT_FALSE(funcWrapper(func, sNaN, neg_aNaN));
EXPECT_FALSE(funcWrapper(func, sNaN, neg_sNaN));
}
void testQuietVsSignalingNaN(TotalOrderFunc func) {
EXPECT_TRUE(funcWrapper(func, neg_aNaN, neg_sNaN));
EXPECT_FALSE(funcWrapper(func, neg_sNaN, neg_aNaN));
EXPECT_TRUE(funcWrapper(func, sNaN, aNaN));
EXPECT_FALSE(funcWrapper(func, aNaN, sNaN));
}
void testNaNPayloads(TotalOrderFunc func) {
EXPECT_TRUE(funcWrapper(func, aNaN, aNaN));
EXPECT_TRUE(funcWrapper(func, sNaN, sNaN));
EXPECT_TRUE(funcWrapper(func, neg_aNaN, neg_aNaN));
EXPECT_TRUE(funcWrapper(func, neg_sNaN, neg_sNaN));
if constexpr (FPBits::FRACTION_LEN - 1 >= 5) {
T qnan_0x15 = FPBits::quiet_nan(Sign::POS, 0x15).get_val();
T neg_qnan_0x15 = FPBits::quiet_nan(Sign::NEG, 0x15).get_val();
T snan_0x15 = FPBits::signaling_nan(Sign::POS, 0x15).get_val();
T neg_snan_0x15 = FPBits::signaling_nan(Sign::NEG, 0x15).get_val();
EXPECT_TRUE(funcWrapper(func, aNaN, qnan_0x15));
EXPECT_FALSE(funcWrapper(func, sNaN, snan_0x15));
EXPECT_FALSE(funcWrapper(func, qnan_0x15, aNaN));
EXPECT_TRUE(funcWrapper(func, snan_0x15, sNaN));
EXPECT_FALSE(funcWrapper(func, neg_aNaN, neg_qnan_0x15));
EXPECT_TRUE(funcWrapper(func, neg_sNaN, neg_snan_0x15));
EXPECT_TRUE(funcWrapper(func, neg_qnan_0x15, neg_aNaN));
EXPECT_FALSE(funcWrapper(func, neg_snan_0x15, neg_sNaN));
}
if constexpr (FPBits::FRACTION_LEN - 1 >= 7) {
T qnan_0x42 = FPBits::quiet_nan(Sign::POS, 0x42).get_val();
T neg_qnan_0x42 = FPBits::quiet_nan(Sign::NEG, 0x42).get_val();
T snan_0x42 = FPBits::signaling_nan(Sign::POS, 0x42).get_val();
T neg_snan_0x42 = FPBits::signaling_nan(Sign::NEG, 0x42).get_val();
EXPECT_TRUE(funcWrapper(func, aNaN, qnan_0x42));
EXPECT_FALSE(funcWrapper(func, sNaN, snan_0x42));
EXPECT_FALSE(funcWrapper(func, qnan_0x42, aNaN));
EXPECT_TRUE(funcWrapper(func, snan_0x42, sNaN));
EXPECT_FALSE(funcWrapper(func, neg_aNaN, neg_qnan_0x42));
EXPECT_TRUE(funcWrapper(func, neg_sNaN, neg_snan_0x42));
EXPECT_TRUE(funcWrapper(func, neg_qnan_0x42, neg_aNaN));
EXPECT_FALSE(funcWrapper(func, neg_snan_0x42, neg_sNaN));
}
}
};
#define LIST_TOTALORDER_TESTS(T, func) \
using LlvmLibcTotalOrderTest = TotalOrderTestTemplate<T>; \
TEST_F(LlvmLibcTotalOrderTest, XLesserThanY) { testXLesserThanY(&func); } \
TEST_F(LlvmLibcTotalOrderTest, XGreaterThanY) { testXGreaterThanY(&func); } \
TEST_F(LlvmLibcTotalOrderTest, XEqualToY) { testXEqualToY(&func); } \
TEST_F(LlvmLibcTotalOrderTest, SingleNaN) { testSingleNaN(&func); } \
TEST_F(LlvmLibcTotalOrderTest, NaNSigns) { testNaNSigns(&func); } \
TEST_F(LlvmLibcTotalOrderTest, QuietVsSignalingNaN) { \
testQuietVsSignalingNaN(&func); \
} \
TEST_F(LlvmLibcTotalOrderTest, NaNPayloads) { testNaNPayloads(&func); }
#endif // LIBC_TEST_SRC_MATH_SMOKE_TOTALORDERTEST_H
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