Vc/avx/debug.h

0001 /*  This file is part of the Vc library. {{{
0002 Copyright © 2011-2015 Matthias Kretz <kretz@kde.org>
0003
0004 Redistribution and use in source and binary forms, with or without
0005 modification, are permitted provided that the following conditions are met:
0006     * Redistributions of source code must retain the above copyright
0007       notice, this list of conditions and the following disclaimer.
0008     * Redistributions in binary form must reproduce the above copyright
0009       notice, this list of conditions and the following disclaimer in the
0010       documentation and/or other materials provided with the distribution.
0011     * Neither the names of contributing organizations nor the
0012       names of its contributors may be used to endorse or promote products
0013       derived from this software without specific prior written permission.
0014
0015 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
0016 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
0017 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
0018 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
0019 DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
0020 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
0021 LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
0022 ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
0023 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
0024 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
0025
0026 }}}*/
0027
0028 #ifndef VC_AVX_DEBUG_H_
0029 #define VC_AVX_DEBUG_H_
0030
0031 #ifndef NDEBUG
0032 #include "vector.h"
0033 #include <iostream>
0034 #include <iomanip>
0035 #endif
0036
0037 namespace Vc_VERSIONED_NAMESPACE
0038 {
0039 namespace AVX
0040 {
0041 template <typename T, typename U> struct AddType {
0042     const U &d;
0043 };
0044 template <typename T, typename U> AddType<T, U> addType(const U &x) { return {x}; }
0045
0046 #ifdef NDEBUG
0047 class DebugStream
0048 {
0049     public:
0050         DebugStream(const char *, const char *, int) {}
0051         template<typename T> inline DebugStream &operator<<(const T &) { return *this; }
0052 };
0053 #else
0054 class DebugStream
0055 {
0056     private:
0057         template<typename T, typename V> static void printVector(V _x)
0058         {
0059             enum { Size = sizeof(V) / sizeof(T) };
0060             union { V v; T m[Size]; } x = { _x };
0061             std::cerr << '[' << std::setprecision(24) << x.m[0];
0062             for (int i = 1; i < Size; ++i) {
0063                 std::cerr << ", " << std::setprecision(24) << x.m[i];
0064             }
0065             std::cerr << ']';
0066         }
0067     public:
0068         DebugStream(const char *func, const char *file, int line)
0069         {
0070             std::cerr << "\033[1;40;33mDEBUG: " << file << ':' << line << ' ' << func << ' ';
0071         }
0072
0073         template<typename T> DebugStream &operator<<(const T &x) { std::cerr << x; return *this; }
0074
0075         template <typename T, typename U> DebugStream &operator<<(AddType<T, U> &&x)
0076         {
0077             printVector<T, U>(x.d);
0078             return *this;
0079         }
0080         DebugStream &operator<<(__m128 x) {
0081             printVector<float, __m128>(x);
0082             return *this;
0083         }
0084         DebugStream &operator<<(__m256 x) {
0085             printVector<float, __m256>(x);
0086             return *this;
0087         }
0088         DebugStream &operator<<(__m128d x) {
0089             printVector<double, __m128d>(x);
0090             return *this;
0091         }
0092         DebugStream &operator<<(__m256d x) {
0093             printVector<double, __m256d>(x);
0094             return *this;
0095         }
0096         DebugStream &operator<<(__m128i x) {
0097             printVector<unsigned int, __m128i>(x);
0098             return *this;
0099         }
0100         DebugStream &operator<<(__m256i x) {
0101             printVector<unsigned int, __m256i>(x);
0102             return *this;
0103         }
0104
0105         ~DebugStream()
0106         {
0107             std::cerr << "\033[0m" << std::endl;
0108         }
0109 };
0110 #endif
0111
0112 #ifdef Vc_DEBUG
0113 #undef Vc_DEBUG
0114 #endif
0115 #ifdef Vc_MSVC
0116 #define Vc_DEBUG Vc::AVX::DebugStream(__FUNCSIG__, __FILE__, __LINE__)
0117 #else
0118 #define Vc_DEBUG Vc::AVX::DebugStream(__PRETTY_FUNCTION__, __FILE__, __LINE__)
0119 #endif
0120
0121 }  // namespace AVX
0122 }  // namespace Vc
0123
0124 #endif // VC_AVX_DEBUG_H_