Vc/sse/const_data.h

0001 /*  This file is part of the Vc library. {{{
0002 Copyright © 2012-2015 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_SSE_CONST_DATA_H_
0029 #define VC_SSE_CONST_DATA_H_
0030
0031 #include "../common/data.h"
0032 #include "macros.h"
0033
0034 namespace Vc_VERSIONED_NAMESPACE
0035 {
0036 namespace SSE
0037 {
0038
0039 alignas(16) extern const unsigned int   _IndexesFromZero4[4];
0040 alignas(16) extern const unsigned short _IndexesFromZero8[8];
0041 alignas(16) extern const unsigned char  _IndexesFromZero16[16];
0042
0043 struct c_general
0044 {
0045     alignas(64) static const int absMaskFloat[4];
0046     alignas(16) static const unsigned int signMaskFloat[4];
0047     alignas(16) static const unsigned int highMaskFloat[4];
0048     alignas(16) static const short minShort[8];
0049
0050     alignas(16) static const unsigned short one16[8];
0051     alignas(16) static const unsigned int one32[4];
0052     alignas(16) static const float oneFloat[4];
0053
0054     alignas(16) static const unsigned long long highMaskDouble[2];
0055     alignas(16) static const double oneDouble[2];
0056     alignas(16) static const long long absMaskDouble[2];
0057     alignas(16) static const unsigned long long signMaskDouble[2];
0058     alignas(16) static const unsigned long long frexpMask[2];
0059 };
0060
0061 template<typename T> struct c_trig
0062 {
0063     alignas(64) static const T data[];
0064 };
0065 #ifndef Vc_MSVC
0066 template <> alignas(64) const float c_trig<float>::data[];
0067 template <> alignas(64) const double c_trig<double>::data[];
0068 #endif
0069
0070 template<typename T> struct c_log
0071 {
0072     enum VectorSize { Size = 16 / sizeof(T) };
0073     static Vc_ALWAYS_INLINE Vc_CONST const float *d(int i) { return reinterpret_cast<const  float *>(&data[i * Size]); }
0074     alignas(64) static const unsigned int data[21 * Size];
0075 };
0076 #ifndef Vc_MSVC
0077 template<> alignas(64) const unsigned int c_log<float>::data[21 * 4];
0078 #endif
0079
0080 template<> struct c_log<double>
0081 {
0082     enum VectorSize { Size = 16 / sizeof(double) };
0083     static Vc_ALWAYS_INLINE Vc_CONST const double *d(int i) { return reinterpret_cast<const double *>(&data[i * Size]); }
0084     alignas(64) static const unsigned long long data[21 * Size];
0085 };
0086
0087 }  // namespace SSE
0088 }  // namespace Vc
0089
0090 #endif // VC_SSE_CONST_DATA_H_