| //===-- TestMatchers.cpp ----------------------------------------*- 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 "FPMatcher.h" |
| |
| #include "src/__support/FPUtil/FPBits.h" |
| |
| #include "utils/UnitTest/StringUtils.h" |
| |
| #include <sstream> |
| #include <string> |
| |
| namespace __llvm_libc { |
| namespace fputil { |
| namespace testing { |
| |
| template <typename ValType, typename StreamType> |
| cpp::enable_if_t<cpp::is_floating_point_v<ValType>, void> |
| describeValue(const char *label, ValType value, StreamType &stream) { |
| stream << label; |
| |
| FPBits<ValType> bits(value); |
| if (bits.is_nan()) { |
| stream << "(NaN)"; |
| } else if (bits.is_inf()) { |
| if (bits.get_sign()) |
| stream << "(-Infinity)"; |
| else |
| stream << "(+Infinity)"; |
| } else { |
| constexpr int exponentWidthInHex = |
| (fputil::ExponentWidth<ValType>::VALUE - 1) / 4 + 1; |
| constexpr int mantissaWidthInHex = |
| (fputil::MantissaWidth<ValType>::VALUE - 1) / 4 + 1; |
| constexpr int bitsWidthInHex = |
| sizeof(typename fputil::FPBits<ValType>::UIntType) * 2; |
| |
| stream << "0x" |
| << int_to_hex<typename fputil::FPBits<ValType>::UIntType>( |
| bits.uintval(), bitsWidthInHex) |
| << ", (S | E | M) = (" << (bits.get_sign() ? '1' : '0') << " | 0x" |
| << int_to_hex<uint16_t>(bits.get_unbiased_exponent(), |
| exponentWidthInHex) |
| << " | 0x" |
| << int_to_hex<typename fputil::FPBits<ValType>::UIntType>( |
| bits.get_mantissa(), mantissaWidthInHex) |
| << ")"; |
| } |
| |
| stream << '\n'; |
| } |
| |
| template void describeValue<float>(const char *, float, |
| testutils::StreamWrapper &); |
| template void describeValue<double>(const char *, double, |
| testutils::StreamWrapper &); |
| template void describeValue<long double>(const char *, long double, |
| testutils::StreamWrapper &); |
| |
| template void describeValue<float>(const char *, float, std::stringstream &); |
| template void describeValue<double>(const char *, double, std::stringstream &); |
| template void describeValue<long double>(const char *, long double, |
| std::stringstream &); |
| |
| } // namespace testing |
| } // namespace fputil |
| } // namespace __llvm_libc |