055be3c30c
Fixing an issue with LLVM libc's fenv.h defined rounding mode macros differently from system libc, making get_round() return different values from fegetround(). Also letting math tests to skip rounding modes that cannot be set. This should allow math tests to be run on platforms in which fenv.h is not implemented yet. This allows us to re-enable hermatic floating point tests in https://reviews.llvm.org/D151123 and reverting https://reviews.llvm.org/D152742. Reviewed By: jhuber6 Differential Revision: https://reviews.llvm.org/D152873
181 lines
9.3 KiB
C++
181 lines
9.3 KiB
C++
//===-- FPMatchers.h --------------------------------------------*- 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_UTILS_UNITTEST_FPMATCHER_H
|
|
#define LLVM_LIBC_UTILS_UNITTEST_FPMATCHER_H
|
|
|
|
#include "src/__support/FPUtil/FEnvImpl.h"
|
|
#include "src/__support/FPUtil/FPBits.h"
|
|
#include "src/__support/FPUtil/fpbits_str.h"
|
|
#include "test/UnitTest/RoundingModeUtils.h"
|
|
#include "test/UnitTest/StringUtils.h"
|
|
#include "test/UnitTest/Test.h"
|
|
|
|
#include <math.h>
|
|
|
|
namespace __llvm_libc {
|
|
namespace testing {
|
|
|
|
template <typename T, TestCond Condition> class FPMatcher : public Matcher<T> {
|
|
static_assert(cpp::is_floating_point_v<T>,
|
|
"FPMatcher can only be used with floating point values.");
|
|
static_assert(Condition == TestCond::EQ || Condition == TestCond::NE,
|
|
"Unsupported FPMatcher test condition.");
|
|
|
|
T expected;
|
|
T actual;
|
|
|
|
public:
|
|
FPMatcher(T expectedValue) : expected(expectedValue) {}
|
|
|
|
bool match(T actualValue) {
|
|
actual = actualValue;
|
|
fputil::FPBits<T> actualBits(actual), expectedBits(expected);
|
|
if (Condition == TestCond::EQ)
|
|
return (actualBits.is_nan() && expectedBits.is_nan()) ||
|
|
(actualBits.uintval() == expectedBits.uintval());
|
|
|
|
// If condition == TestCond::NE.
|
|
if (actualBits.is_nan())
|
|
return !expectedBits.is_nan();
|
|
return expectedBits.is_nan() ||
|
|
(actualBits.uintval() != expectedBits.uintval());
|
|
}
|
|
|
|
void explainError() override {
|
|
tlog << "Expected floating point value: "
|
|
<< str(fputil::FPBits<T>(expected)) << '\n';
|
|
tlog << "Actual floating point value: " << str(fputil::FPBits<T>(actual))
|
|
<< '\n';
|
|
}
|
|
};
|
|
|
|
template <TestCond C, typename T> FPMatcher<T, C> getMatcher(T expectedValue) {
|
|
return FPMatcher<T, C>(expectedValue);
|
|
}
|
|
|
|
} // namespace testing
|
|
} // namespace __llvm_libc
|
|
|
|
#define DECLARE_SPECIAL_CONSTANTS(T) \
|
|
using FPBits = __llvm_libc::fputil::FPBits<T>; \
|
|
using UIntType = typename FPBits::UIntType; \
|
|
const T zero = T(FPBits::zero()); \
|
|
const T neg_zero = T(FPBits::neg_zero()); \
|
|
const T aNaN = T(FPBits::build_quiet_nan(1)); \
|
|
const T inf = T(FPBits::inf()); \
|
|
const T neg_inf = T(FPBits::neg_inf());
|
|
|
|
#define EXPECT_FP_EQ(expected, actual) \
|
|
EXPECT_THAT( \
|
|
actual, \
|
|
__llvm_libc::testing::getMatcher<__llvm_libc::testing::TestCond::EQ>( \
|
|
expected))
|
|
|
|
#define TEST_FP_EQ(expected, actual) \
|
|
__llvm_libc::testing::getMatcher<__llvm_libc::testing::TestCond::EQ>( \
|
|
expected) \
|
|
.match(actual)
|
|
|
|
#define EXPECT_FP_IS_NAN(actual) EXPECT_TRUE((actual) != (actual))
|
|
|
|
#define ASSERT_FP_EQ(expected, actual) \
|
|
ASSERT_THAT( \
|
|
actual, \
|
|
__llvm_libc::testing::getMatcher<__llvm_libc::testing::TestCond::EQ>( \
|
|
expected))
|
|
|
|
#define EXPECT_FP_NE(expected, actual) \
|
|
EXPECT_THAT( \
|
|
actual, \
|
|
__llvm_libc::testing::getMatcher<__llvm_libc::testing::TestCond::NE>( \
|
|
expected))
|
|
|
|
#define ASSERT_FP_NE(expected, actual) \
|
|
ASSERT_THAT( \
|
|
actual, \
|
|
__llvm_libc::testing::getMatcher<__llvm_libc::testing::TestCond::NE>( \
|
|
expected))
|
|
|
|
#define EXPECT_MATH_ERRNO(expected) \
|
|
do { \
|
|
if (math_errhandling & MATH_ERRNO) { \
|
|
int actual = libc_errno; \
|
|
libc_errno = 0; \
|
|
EXPECT_EQ(actual, expected); \
|
|
} \
|
|
} while (0)
|
|
|
|
#define ASSERT_MATH_ERRNO(expected) \
|
|
do { \
|
|
if (math_errhandling & MATH_ERRNO) { \
|
|
int actual = libc_errno; \
|
|
libc_errno = 0; \
|
|
ASSERT_EQ(actual, expected); \
|
|
} \
|
|
} while (0)
|
|
|
|
#define EXPECT_FP_EXCEPTION(expected) \
|
|
do { \
|
|
if (math_errhandling & MATH_ERREXCEPT) { \
|
|
EXPECT_GE(__llvm_libc::fputil::test_except(FE_ALL_EXCEPT) & expected, \
|
|
expected); \
|
|
} \
|
|
} while (0)
|
|
|
|
#define ASSERT_FP_EXCEPTION(expected) \
|
|
do { \
|
|
if (math_errhandling & MATH_ERREXCEPT) { \
|
|
ASSERT_GE(__llvm_libc::fputil::test_except(FE_ALL_EXCEPT) & expected, \
|
|
expected); \
|
|
} \
|
|
} while (0)
|
|
|
|
#define EXPECT_FP_EQ_WITH_EXCEPTION(expected_val, actual_val, expected_except) \
|
|
do { \
|
|
__llvm_libc::fputil::clear_except(FE_ALL_EXCEPT); \
|
|
EXPECT_FP_EQ(expected_val, actual_val); \
|
|
if (math_errhandling & MATH_ERREXCEPT) { \
|
|
EXPECT_GE(__llvm_libc::fputil::test_except(FE_ALL_EXCEPT) & \
|
|
expected_except, \
|
|
expected_except); \
|
|
__llvm_libc::fputil::clear_except(FE_ALL_EXCEPT); \
|
|
} \
|
|
} while (0)
|
|
|
|
#define EXPECT_FP_IS_NAN_WITH_EXCEPTION(actual_val, expected_except) \
|
|
do { \
|
|
__llvm_libc::fputil::clear_except(FE_ALL_EXCEPT); \
|
|
EXPECT_FP_IS_NAN(actual_val); \
|
|
if (math_errhandling & MATH_ERREXCEPT) { \
|
|
EXPECT_GE(__llvm_libc::fputil::test_except(FE_ALL_EXCEPT) & \
|
|
expected_except, \
|
|
expected_except); \
|
|
__llvm_libc::fputil::clear_except(FE_ALL_EXCEPT); \
|
|
} \
|
|
} while (0)
|
|
|
|
#define EXPECT_FP_EQ_ALL_ROUNDING(expected, actual) \
|
|
do { \
|
|
using namespace __llvm_libc::fputil::testing; \
|
|
ForceRoundingMode __r1(RoundingMode::Nearest); \
|
|
if (__r1.success) \
|
|
EXPECT_FP_EQ((expected), (actual)); \
|
|
ForceRoundingMode __r2(RoundingMode::Upward); \
|
|
if (__r2.success) \
|
|
EXPECT_FP_EQ((expected), (actual)); \
|
|
ForceRoundingMode __r3(RoundingMode::Downward); \
|
|
if (__r3.success) \
|
|
EXPECT_FP_EQ((expected), (actual)); \
|
|
ForceRoundingMode __r4(RoundingMode::TowardZero); \
|
|
if (__r4.success) \
|
|
EXPECT_FP_EQ((expected), (actual)); \
|
|
} while (0)
|
|
|
|
#endif // LLVM_LIBC_UTILS_UNITTEST_FPMATCHER_H
|