Vc  1.0.0-dev
SIMD Vector Classes for C++
aliasingentryhelper.h
1 /* This file is part of the Vc library. {{{
2 Copyright © 2010-2015 Matthias Kretz <kretz@kde.org>
3 All rights reserved.
4 
5 Redistribution and use in source and binary forms, with or without
6 modification, are permitted provided that the following conditions are met:
7  * Redistributions of source code must retain the above copyright
8  notice, this list of conditions and the following disclaimer.
9  * Redistributions in binary form must reproduce the above copyright
10  notice, this list of conditions and the following disclaimer in the
11  documentation and/or other materials provided with the distribution.
12  * Neither the names of contributing organizations nor the
13  names of its contributors may be used to endorse or promote products
14  derived from this software without specific prior written permission.
15 
16 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
17 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
20 DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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25 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 
27 }}}*/
28 
29 #ifndef VC_COMMON_ALIASINGENTRYHELPER_H_
30 #define VC_COMMON_ALIASINGENTRYHELPER_H_
31 
32 #include "macros.h"
33 
34 namespace Vc_VERSIONED_NAMESPACE
35 {
36 namespace Common
37 {
38 
39 template<class StorageType> class AliasingEntryHelper
40 {
41  private:
42  typedef typename StorageType::EntryType T;
43 #ifdef Vc_ICC
44  StorageType *const m_storage;
45  const int m_index;
46  public:
47  Vc_ALWAYS_INLINE AliasingEntryHelper(StorageType *d, int index) : m_storage(d), m_index(index) {}
48  Vc_ALWAYS_INLINE AliasingEntryHelper(const AliasingEntryHelper &) = default;
49  Vc_ALWAYS_INLINE AliasingEntryHelper(AliasingEntryHelper &&) = default;
50  Vc_ALWAYS_INLINE AliasingEntryHelper &operator=(const AliasingEntryHelper &rhs) {
51  m_storage->assign(m_index, rhs);
52  return *this;
53  }
54 
55  Vc_ALWAYS_INLINE AliasingEntryHelper &operator =(T x) { m_storage->assign(m_index, x); return *this; }
56  Vc_ALWAYS_INLINE AliasingEntryHelper &operator +=(T x) { m_storage->assign(m_index, m_storage->m(m_index) + x); return *this; }
57  Vc_ALWAYS_INLINE AliasingEntryHelper &operator -=(T x) { m_storage->assign(m_index, m_storage->m(m_index) - x); return *this; }
58  Vc_ALWAYS_INLINE AliasingEntryHelper &operator /=(T x) { m_storage->assign(m_index, m_storage->m(m_index) / x); return *this; }
59  Vc_ALWAYS_INLINE AliasingEntryHelper &operator *=(T x) { m_storage->assign(m_index, m_storage->m(m_index) * x); return *this; }
60  Vc_ALWAYS_INLINE AliasingEntryHelper &operator |=(T x) { m_storage->assign(m_index, m_storage->m(m_index) | x); return *this; }
61  Vc_ALWAYS_INLINE AliasingEntryHelper &operator &=(T x) { m_storage->assign(m_index, m_storage->m(m_index) & x); return *this; }
62  Vc_ALWAYS_INLINE AliasingEntryHelper &operator ^=(T x) { m_storage->assign(m_index, m_storage->m(m_index) ^ x); return *this; }
63  Vc_ALWAYS_INLINE AliasingEntryHelper &operator %=(T x) { m_storage->assign(m_index, m_storage->m(m_index) % x); return *this; }
64  Vc_ALWAYS_INLINE AliasingEntryHelper &operator<<=(T x) { m_storage->assign(m_index, m_storage->m(m_index)<< x); return *this; }
65  Vc_ALWAYS_INLINE AliasingEntryHelper &operator>>=(T x) { m_storage->assign(m_index, m_storage->m(m_index)>> x); return *this; }
66 #define m_data m_storage->read(m_index)
67 #else
68  typedef T A Vc_MAY_ALIAS;
69  A &m_data;
70  public:
71  template<typename T2>
72  Vc_ALWAYS_INLINE AliasingEntryHelper(T2 &d) : m_data(reinterpret_cast<A &>(d)) {}
73 
74  Vc_ALWAYS_INLINE AliasingEntryHelper(A &d) : m_data(d) {}
75  Vc_ALWAYS_INLINE AliasingEntryHelper &operator=(const AliasingEntryHelper &rhs) {
76  m_data = rhs.m_data;
77  return *this;
78  }
79 
80  Vc_ALWAYS_INLINE AliasingEntryHelper &operator =(T x) { m_data = x; return *this; }
81  Vc_ALWAYS_INLINE AliasingEntryHelper &operator+=(T x) { m_data += x; return *this; }
82  Vc_ALWAYS_INLINE AliasingEntryHelper &operator-=(T x) { m_data -= x; return *this; }
83  Vc_ALWAYS_INLINE AliasingEntryHelper &operator/=(T x) { m_data /= x; return *this; }
84  Vc_ALWAYS_INLINE AliasingEntryHelper &operator*=(T x) { m_data *= x; return *this; }
85  Vc_ALWAYS_INLINE AliasingEntryHelper &operator|=(T x) { m_data |= x; return *this; }
86  Vc_ALWAYS_INLINE AliasingEntryHelper &operator&=(T x) { m_data &= x; return *this; }
87  Vc_ALWAYS_INLINE AliasingEntryHelper &operator^=(T x) { m_data ^= x; return *this; }
88  Vc_ALWAYS_INLINE AliasingEntryHelper &operator%=(T x) { m_data %= x; return *this; }
89  Vc_ALWAYS_INLINE AliasingEntryHelper &operator<<=(T x) { m_data <<= x; return *this; }
90  Vc_ALWAYS_INLINE AliasingEntryHelper &operator>>=(T x) { m_data >>= x; return *this; }
91 #endif
92 
93  Vc_ALWAYS_INLINE Vc_PURE operator const T() const { return m_data; }
94 
95  Vc_ALWAYS_INLINE Vc_PURE bool operator==(T x) const { return static_cast<T>(m_data) == x; }
96  Vc_ALWAYS_INLINE Vc_PURE bool operator!=(T x) const { return static_cast<T>(m_data) != x; }
97  Vc_ALWAYS_INLINE Vc_PURE bool operator<=(T x) const { return static_cast<T>(m_data) <= x; }
98  Vc_ALWAYS_INLINE Vc_PURE bool operator>=(T x) const { return static_cast<T>(m_data) >= x; }
99  Vc_ALWAYS_INLINE Vc_PURE bool operator< (T x) const { return static_cast<T>(m_data) < x; }
100  Vc_ALWAYS_INLINE Vc_PURE bool operator> (T x) const { return static_cast<T>(m_data) > x; }
101 
102  Vc_ALWAYS_INLINE Vc_PURE T operator-() const { return -static_cast<T>(m_data); }
103  Vc_ALWAYS_INLINE Vc_PURE T operator~() const { return ~static_cast<T>(m_data); }
104  Vc_ALWAYS_INLINE Vc_PURE T operator+(T x) const { return static_cast<T>(m_data) + x; }
105  Vc_ALWAYS_INLINE Vc_PURE T operator-(T x) const { return static_cast<T>(m_data) - x; }
106  Vc_ALWAYS_INLINE Vc_PURE T operator/(T x) const { return static_cast<T>(m_data) / x; }
107  Vc_ALWAYS_INLINE Vc_PURE T operator*(T x) const { return static_cast<T>(m_data) * x; }
108  Vc_ALWAYS_INLINE Vc_PURE T operator|(T x) const { return static_cast<T>(m_data) | x; }
109  Vc_ALWAYS_INLINE Vc_PURE T operator&(T x) const { return static_cast<T>(m_data) & x; }
110  Vc_ALWAYS_INLINE Vc_PURE T operator^(T x) const { return static_cast<T>(m_data) ^ x; }
111  Vc_ALWAYS_INLINE Vc_PURE T operator%(T x) const { return static_cast<T>(m_data) % x; }
112  //T operator<<(T x) const { return static_cast<T>(m_data) << x; }
113  //T operator>>(T x) const { return static_cast<T>(m_data) >> x; }
114 #ifdef m_data
115 #undef m_data
116 #endif
117 };
118 
119 } // namespace Common
120 } // namespace Vc
121 
122 #endif // VC_COMMON_ALIASINGENTRYHELPER_H_