Vc/common/aliasingentryhelper.h

0001 /*  This file is part of the Vc library. {{{
0002 Copyright © 2010-2015 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_COMMON_ALIASINGENTRYHELPER_H_
0029 #define VC_COMMON_ALIASINGENTRYHELPER_H_
0030
0031 #include "macros.h"
0032
0033 namespace Vc_VERSIONED_NAMESPACE
0034 {
0035 namespace Common
0036 {
0037
0038 template<class StorageType> class AliasingEntryHelper
0039 {
0040     private:
0041         typedef typename StorageType::EntryType T;
0042 #ifdef Vc_ICC
0043         StorageType *const m_storage;
0044         const int m_index;
0045     public:
0046         Vc_ALWAYS_INLINE AliasingEntryHelper(StorageType *d, int index) : m_storage(d), m_index(index) {}
0047         Vc_ALWAYS_INLINE AliasingEntryHelper(const AliasingEntryHelper &) = default;
0048         Vc_ALWAYS_INLINE AliasingEntryHelper(AliasingEntryHelper &&) = default;
0049         Vc_ALWAYS_INLINE AliasingEntryHelper &operator=(const AliasingEntryHelper &rhs) {
0050             m_storage->assign(m_index, rhs);
0051             return *this;
0052         }
0053
0054         Vc_ALWAYS_INLINE AliasingEntryHelper &operator  =(T x) { m_storage->assign(m_index, x); return *this; }
0055         Vc_ALWAYS_INLINE AliasingEntryHelper &operator +=(T x) { m_storage->assign(m_index, m_storage->m(m_index) + x); return *this; }
0056         Vc_ALWAYS_INLINE AliasingEntryHelper &operator -=(T x) { m_storage->assign(m_index, m_storage->m(m_index) - x); return *this; }
0057         Vc_ALWAYS_INLINE AliasingEntryHelper &operator /=(T x) { m_storage->assign(m_index, m_storage->m(m_index) / x); return *this; }
0058         Vc_ALWAYS_INLINE AliasingEntryHelper &operator *=(T x) { m_storage->assign(m_index, m_storage->m(m_index) * x); return *this; }
0059         Vc_ALWAYS_INLINE AliasingEntryHelper &operator |=(T x) { m_storage->assign(m_index, m_storage->m(m_index) | x); return *this; }
0060         Vc_ALWAYS_INLINE AliasingEntryHelper &operator &=(T x) { m_storage->assign(m_index, m_storage->m(m_index) & x); return *this; }
0061         Vc_ALWAYS_INLINE AliasingEntryHelper &operator ^=(T x) { m_storage->assign(m_index, m_storage->m(m_index) ^ x); return *this; }
0062         Vc_ALWAYS_INLINE AliasingEntryHelper &operator %=(T x) { m_storage->assign(m_index, m_storage->m(m_index) % x); return *this; }
0063         Vc_ALWAYS_INLINE AliasingEntryHelper &operator<<=(T x) { m_storage->assign(m_index, m_storage->m(m_index)<< x); return *this; }
0064         Vc_ALWAYS_INLINE AliasingEntryHelper &operator>>=(T x) { m_storage->assign(m_index, m_storage->m(m_index)>> x); return *this; }
0065 #define m_data m_storage->read(m_index)
0066 #else
0067         typedef T A Vc_MAY_ALIAS;
0068         A &m_data;
0069     public:
0070         template<typename T2>
0071         Vc_ALWAYS_INLINE AliasingEntryHelper(T2 &d) : m_data(reinterpret_cast<A &>(d)) {}
0072
0073         Vc_ALWAYS_INLINE AliasingEntryHelper(A &d) : m_data(d) {}
0074         Vc_ALWAYS_INLINE AliasingEntryHelper &operator=(const AliasingEntryHelper &rhs) {
0075             m_data = rhs.m_data;
0076             return *this;
0077         }
0078
0079         Vc_ALWAYS_INLINE AliasingEntryHelper &operator =(T x) { m_data  = x; return *this; }
0080         Vc_ALWAYS_INLINE AliasingEntryHelper &operator+=(T x) { m_data += x; return *this; }
0081         Vc_ALWAYS_INLINE AliasingEntryHelper &operator-=(T x) { m_data -= x; return *this; }
0082         Vc_ALWAYS_INLINE AliasingEntryHelper &operator/=(T x) { m_data /= x; return *this; }
0083         Vc_ALWAYS_INLINE AliasingEntryHelper &operator*=(T x) { m_data *= x; return *this; }
0084         Vc_ALWAYS_INLINE AliasingEntryHelper &operator|=(T x) { m_data |= x; return *this; }
0085         Vc_ALWAYS_INLINE AliasingEntryHelper &operator&=(T x) { m_data &= x; return *this; }
0086         Vc_ALWAYS_INLINE AliasingEntryHelper &operator^=(T x) { m_data ^= x; return *this; }
0087         Vc_ALWAYS_INLINE AliasingEntryHelper &operator%=(T x) { m_data %= x; return *this; }
0088         Vc_ALWAYS_INLINE AliasingEntryHelper &operator<<=(T x) { m_data <<= x; return *this; }
0089         Vc_ALWAYS_INLINE AliasingEntryHelper &operator>>=(T x) { m_data >>= x; return *this; }
0090 #endif
0091
0092         Vc_ALWAYS_INLINE Vc_PURE operator const T() const { return m_data; }
0093
0094         Vc_ALWAYS_INLINE Vc_PURE bool operator==(T x) const { return static_cast<T>(m_data) == x; }
0095         Vc_ALWAYS_INLINE Vc_PURE bool operator!=(T x) const { return static_cast<T>(m_data) != x; }
0096         Vc_ALWAYS_INLINE Vc_PURE bool operator<=(T x) const { return static_cast<T>(m_data) <= x; }
0097         Vc_ALWAYS_INLINE Vc_PURE bool operator>=(T x) const { return static_cast<T>(m_data) >= x; }
0098         Vc_ALWAYS_INLINE Vc_PURE bool operator< (T x) const { return static_cast<T>(m_data) <  x; }
0099         Vc_ALWAYS_INLINE Vc_PURE bool operator> (T x) const { return static_cast<T>(m_data) >  x; }
0100
0101         Vc_ALWAYS_INLINE Vc_PURE T operator-() const { return -static_cast<T>(m_data); }
0102         Vc_ALWAYS_INLINE Vc_PURE T operator~() const { return ~static_cast<T>(m_data); }
0103         Vc_ALWAYS_INLINE Vc_PURE T operator+(T x) const { return static_cast<T>(m_data) + x; }
0104         Vc_ALWAYS_INLINE Vc_PURE T operator-(T x) const { return static_cast<T>(m_data) - x; }
0105         Vc_ALWAYS_INLINE Vc_PURE T operator/(T x) const { return static_cast<T>(m_data) / x; }
0106         Vc_ALWAYS_INLINE Vc_PURE T operator*(T x) const { return static_cast<T>(m_data) * x; }
0107         Vc_ALWAYS_INLINE Vc_PURE T operator|(T x) const { return static_cast<T>(m_data) | x; }
0108         Vc_ALWAYS_INLINE Vc_PURE T operator&(T x) const { return static_cast<T>(m_data) & x; }
0109         Vc_ALWAYS_INLINE Vc_PURE T operator^(T x) const { return static_cast<T>(m_data) ^ x; }
0110         Vc_ALWAYS_INLINE Vc_PURE T operator%(T x) const { return static_cast<T>(m_data) % x; }
0111         //T operator<<(T x) const { return static_cast<T>(m_data) << x; }
0112         //T operator>>(T x) const { return static_cast<T>(m_data) >> x; }
0113 #ifdef m_data
0114 #undef m_data
0115 #endif
0116 };
0117
0118 }  // namespace Common
0119 }  // namespace Vc
0120
0121 #endif // VC_COMMON_ALIASINGENTRYHELPER_H_