blob: 5fd34d009272c3bd766121fd9e3719762426215c (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
|
/****************************************************************************
**
** Copyright (C) 2020 The Qt Company Ltd.
** Copyright (C) 2018 Intel Corporation.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QSIMD_H
#define QSIMD_H
#include <QtCore/qglobal.h>
/*
* qconfig.h defines the QT_COMPILER_SUPPORTS_XXX macros.
* They mean the compiler supports the necessary flags and the headers
* for the x86 and ARM intrinsics.
*
* Supported instruction set extensions are:
* Flag | Arch
* neon | ARM
* mips_dsp | mips
* mips_dspr2 | mips
* sse2 | x86
* sse4_1 | x86
* sse4_2 | x86
* avx | x86
*
* Code can use the following constructs to determine compiler support & status:
* - #if QT_COMPILER_USES(XXX) (e.g: #if QT_COMPILER_USES(neon) or QT_COMPILER_USES(sse4_1)
* If this test passes, then the compiler is already generating code using the
* given instruction set. The intrinsics for those instructions are
* #included and can be used without restriction or runtime check.
*
* Code that requires runtime detection and different code paths at runtime is
* currently not supported here, have a look at qsimd_p.h for support.
*/
#define QT_COMPILER_USES(feature) (1/QT_COMPILER_USES_##feature == 1)
#if defined(Q_PROCESSOR_ARM) && defined(__ARM_NEON) || defined(__ARM_NEON__)
# include <arm_neon.h>
# define QT_COMPILER_USES_neon 1
#else
# define QT_COMPILER_USES_neon -1
#endif
#if defined(Q_PROCESSOR_MIPS) && (defined(__MIPS_DSP__) || (defined(__mips_dsp) && defined(Q_PROCESSOR_MIPS_32)))
# define QT_COMPILER_USES_mips_dsp 1
#else
# define QT_COMPILER_USES_mips_dsp -1
#endif
#if defined(Q_PROCESSOR_MIPS) && (defined(__MIPS_DSPR2__) || (defined(__mips_dspr2) && defined(Q_PROCESSOR_MIPS_32)))
# define QT_COMPILER_USES_mips_dspr2 1
#else
# define QT_COMPILER_USES_mips_dspr2 -1
#endif
#if defined(Q_PROCESSOR_X86)
#if defined(Q_CC_MSVC)
// MSVC doesn't define __SSE2__, so do it ourselves
# if (defined(_M_X64) || _M_IX86_FP >= 2)
# define __SSE__ 1
# define __SSE2__ 1
# endif
#if (defined(_M_AVX) || defined(__AVX__))
// Visual Studio defines __AVX__ when /arch:AVX is passed, but not the earlier macros
// See: https://msdn.microsoft.com/en-us/library/b0084kay.aspx
# define __SSE3__ 1
# define __SSSE3__ 1
# define __SSE4_1__ 1
# define __SSE4_2__ 1
# ifndef __AVX__
# define __AVX__ 1
# endif
# endif
# ifdef __SSE2__
# define QT_VECTORCALL __vectorcall
# endif
#endif
#endif
#if defined(Q_PROCESSOR_X86) && defined(__SSE2__)
# include <immintrin.h>
# define QT_COMPILER_USES_sse2 1
#else
# define QT_COMPILER_USES_sse2 -1
#endif
#if defined(Q_PROCESSOR_X86) && defined(__SSE3__)
# define QT_COMPILER_USES_sse3 1
#else
# define QT_COMPILER_USES_sse3 -1
#endif
#if defined(Q_PROCESSOR_X86) && defined(__SSSE3__)
# define QT_COMPILER_USES_ssse3 1
#else
# define QT_COMPILER_USES_ssse3 -1
#endif
#if defined(Q_PROCESSOR_X86) && defined(__SSE4_1__)
# define QT_COMPILER_USES_sse4_1 1
#else
# define QT_COMPILER_USES_sse4_1 -1
#endif
#if defined(Q_PROCESSOR_X86) && defined(__SSE4_2__)
# define QT_COMPILER_USES_sse4_2 1
#else
# define QT_COMPILER_USES_sse4_2 -1
#endif
#if defined(Q_PROCESSOR_X86) && defined(__AVX__)
# define QT_COMPILER_USES_avx 1
#else
# define QT_COMPILER_USES_avx -1
#endif
#ifndef QT_VECTORCALL
#define QT_VECTORCALL
#endif
QT_BEGIN_NAMESPACE
QT_END_NAMESPACE
#endif // QSIMD_H
|
