1 #ifndef LIBJMMCG_CORE_BLATANT_OLD_MSVC_COMPILER_HACKS_HPP
2 #define LIBJMMCG_CORE_BLATANT_OLD_MSVC_COMPILER_HACKS_HPP
3
4 /******************************************************************************
5 ** $Header: svn+ssh://jmmcg@svn.code.sf.net/p/libjmmcg/code/trunk/libjmmcg/core/blatant_old_msvc_compiler_hacks.hpp 2314 2018-08-30 22:09:01Z jmmcg $
6 **
7 ** Copyright (C) 2002 by J.M.McGuiness, coder@hussar.me.uk
8 **
9 ** This library is free software; you can redistribute it and/or
10 ** modify it under the terms of the GNU Lesser General Public
11 ** License as published by the Free Software Foundation; either
12 ** version 2.1 of the License, or (at your option) any later version.
13 **
14 ** This library is distributed in the hope that it will be useful,
15 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
16 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 ** Lesser General Public License for more details.
18 **
19 ** You should have received a copy of the GNU Lesser General Public
20 ** License along with this library; if not, write to the Free Software
21 ** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 */
23
24 #include "config.h"
25
26 #include <new>
27
28 /**
29 \mainpage
30 \section Overview
31 See <a href="http://libjmmcg.sf.net/">the web site</a> for an overview and previously-given presentations regarding the library.
32 */
33
34 /** \file
35 This file contains some of the more blatant, nasty, evil hacks that need
36 to be done to work-around the venerable MSVC++ v6.0 sp5 compiler's "features".
37 Note that this compiler should really be referred to as "cl.exe" v12.00.8168.
38 */
39
40 /// Work arounds for the older MSVC++ compilers being very broken regarding the use of various keywords.
41 #define JMMCG_MSVC_STDCALL_HACK __stdcall
42 #define JMMCG_MSVC_FASTCALL_HACK __fastcall
43
44 #ifndef _CRT_SECURE_NO_WARNINGS
45 # define _CRT_SECURE_NO_WARNINGS
46 #endif
47 #ifndef _WIN32_WINNT
48 # define _WIN32_WINNT 0x0501
49 #endif
50 #ifndef WINVER
51 # define WINVER _WIN32_WINNT
52 #endif
53
54 #if defined(_MSC_VER) && (_MSC_VER < 1300)
55 # define __FUNCTION__ _T("Message to M$: you should have defined __FUNCTION__!")
56 /// Hacks to get round MS macros in "windef.h" that conflict with the STL definitions of min() and max().
57 # undef min
58 # undef max
59 # ifndef JMMCG_MS_MINMAX_HACK
60 # define JMMCG_MS_MINMAX_HACK
61 # define NOMINMAX
62 namespace std {
63 template<class _Ty> inline const _Ty& __fastcall
64 max(const _Ty& _X, const _Ty& _Y) {
65 return _cpp_max(_X, _Y);
66 }
67 template<class _Ty, class _Pr> inline const _Ty& __fastcall
68 max(const _Ty& _X, const _Ty& _Y, _Pr _P) {
69 return _cpp_max(_X, _Y, _P);
70 }
71
72 template<class _Ty> inline const _Ty& __fastcall
73 min(const _Ty& _X, const _Ty& _Y) {
74 return _cpp_min(_X, _Y);
75 }
76 template<class _Ty, class _Pr> inline const _Ty& __fastcall
77 min(const _Ty& _X, const _Ty& _Y, _Pr _P) {
78 return _cpp_min(_X, _Y, _P);
79 }
80 }
81 # endif
82 # if (_MSC_VER < 1300)
83 # undef JMMCG_MSVC_FASTCALL_HACK
84 # define JMMCG_MSVC_FASTCALL_HACK
85 # undef JMMCG_MSVC_STDCALL_HACK
86 # define JMMCG_MSVC_STDCALL_HACK
87 # endif
88 #endif
89
90 #ifdef _MSC_VER
91 /// Get rid of stupid MSVC warnings.
92 # pragma warning(disable:4033) ///< Conversion from OMF to COFF warning.
93 # pragma warning(disable:4256) ///< constructor for class with virtual bases has '...'; calls may not be compatible with older versions of Visual C++
94 # pragma warning(disable:4290) ///< C++ Exception Specification ignored.
95 # pragma warning(disable:4503) ///< Decorated name length exceeded, name was truncated.
96 # pragma warning(disable:4710) ///< function '...' not inlined
97 # pragma warning(disable:4711) ///< function '...' selected for automatic inline expansion
98 # pragma warning(disable:4725) ///< Pentium fdiv warning.
99 # pragma warning(disable:4786) ///< "identifier was truncated to '255' characters in the debug information", (from MSVC++ v5.0 help).
100 # pragma warning(disable:4800) ///< forcing value to bool 'true' or 'false' (performance warning).
101
102 # define _CRT_SECURE_NO_WARNINGS ///< This function or variable may be unsafe.
103 # define _SCL_SECURE_NO_WARNINGS ///< Function call with parameters that may be unsafe.
104
105 # define __PRETTY_FUNCTION__ __FUNCSIG__
106
107 typedef __int16 int16_t;
108
109 # if defined(_MT) && !defined(_REENTRANT)
110 # define _REETRANT
111 # endif
112
113 # define LIKELY(x) (x)
114 # define UNLIKELY(x) (x)
115 # define FORCE_INLINE
116 # define NEVER_INLINE
117
118 # define POPCOUNTLL(x) __popcnt64(x)
119
120 /**
121 Include "intrin.h" for this intrinsic. See <a href="https://msdn.microsoft.com/en-us/library/hh977023.aspx">MSDN Intrinsics</a> for more information.
122
123 \param addr Prefetch a cache line from the address addr for reading.
124 \param locality Not used.
125 */
126 # define PREFETCH_READ(addr, locality) _m_prefetch(reinterpret_cast<void *>(addr))
127
128 /**
129 Include "intrin.h" for this intrinsic. See <a href="https://msdn.microsoft.com/en-us/library/hh977023.aspx">MSDN Intrinsics</a> for more information.
130
131 \param addr Prefetch a cache line from the address addr for writing.
132 \param locality Not used.
133 */
134 # define PREFETCH_WRITE(addr, locality) _m_prefetchw(reinterpret_cast<void *>(addr))
135
136 #else
137 // Ensure that other 32-bit compilers can safely ignore unnecessary requirement in MSVC++-world for declaring functions with efficient calling conventions.
138
139 /// This is the general calling convention: use it anywhere.
140 # ifndef __fastcall
141 # define __fastcall __attribute__((regparm(3)))
142 # endif
143
144 /// Calling convention necessary for constructors/destructors in MSVC.
145 # ifndef __stdcall
146 # define __stdcall __attribute__((regparm(3)))
147 # endif
148
149 /// In MSVC++, the standard, slowest calling convention, used only for "main()" and other required places, e.g. var-arg functions.
150 # ifndef __cdecl
151 # define __cdecl __attribute__((cdecl))
152 # endif
153
154 # define __CLR_OR_THIS_CALL __attribute__((regparm(3)))
155
156 # define __declspec(dllexport)
157
158 /**
159 GCC has "quirks" in it's static branch-prediction: <a href="https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66573">Branch prediction in gcc</a>. Use these to ensure that if-statements are generated reliably.
160 */
161 # define LIKELY(x) __builtin_expect(!!(x), 1)
162 # define UNLIKELY(x) __builtin_expect(!!(x), 0)
163 // Note that this can cause the compiler to take 100x longer...! BEWARE!
164 # define REALLY_FORCE_INLINE __attribute__((always_inline))
165 # define FORCE_INLINE
166 # define NEVER_INLINE __attribute__((noinline))
167
168 /// Yup: MSVC++ doesn't support "long long" properly.... Better use the MSVC++-special types.
169 typedef long long __int64;
170 typedef unsigned long long __uint64;
171
172 # define POPCOUNTLL(x) __builtin_popcountll(x)
173
174 /**
175 See <a href="https://gcc.gnu.org/onlinedocs/gcc-3.3.6/gcc/Other-Builtins.html">GCC Intrinsics</a> and <a href="http://tomoyo.osdn.jp/cgi-bin/lxr/source/include/linux/prefetch.h">Prefetching strides</a> for more information.
176
177 \param addr Prefetch a cache line from the address addr for reading. See the kernel marco L1_CACHE_BYTES for an approximation.
178 \param locality A compile-time integer constant in [1 .. 3], default 3. 1 means low locality, 3 highest.
179 */
180 # define PREFETCH_READ(addr, locality) __builtin_prefetch(reinterpret_cast<void const *>(addr), 0, (locality))
181
182 /**
183 See <a href="https://gcc.gnu.org/onlinedocs/gcc-3.3.6/gcc/Other-Builtins.html">GCC Intrinsics</a> and <a href="http://tomoyo.osdn.jp/cgi-bin/lxr/source/include/linux/prefetch.h">Prefetching strides</a> for more information.
184
185 \param addr Prefetch a cache line from the address addr for writing. See the kernel marco L1_CACHE_BYTES for an approximation.
186 \param locality A compile-time integer constant in [1 .. 3], default 3. 1 means low locality, 3 highest.
187 */
188 # define PREFETCH_WRITE(addr, locality) __builtin_prefetch(reinterpret_cast<void const *>(addr), 1, (locality))
189
190 #endif
191
192 #define ALIGN_TO_L1_CACHE alignas(64 /* TODO std::hardware_constructive_interference_size */)
193
194 #endif