2 This file is a part of libcds - Concurrent Data Structures library
4 (C) Copyright Maxim Khizhinsky (libcds.dev@gmail.com) 2006-2017
6 Source code repo: http://github.com/khizmax/libcds/
7 Download: http://sourceforge.net/projects/libcds/files/
9 Redistribution and use in source and binary forms, with or without
10 modification, are permitted provided that the following conditions are met:
12 * Redistributions of source code must retain the above copyright notice, this
13 list of conditions and the following disclaimer.
15 * Redistributions in binary form must reproduce the above copyright notice,
16 this list of conditions and the following disclaimer in the documentation
17 and/or other materials provided with the distribution.
19 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
20 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
22 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
23 FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
25 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
26 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
27 OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 #ifndef CDSLIB_COMPILER_CLANG_DEFS_H
32 #define CDSLIB_COMPILER_CLANG_DEFS_H
35 #define CDS_COMPILER_VERSION (__clang_major__ * 10000 + __clang_minor__ * 100 + __clang_patchlevel__)
38 #define CDS_COMPILER__NAME ("clang " __clang_version__)
39 #define CDS_COMPILER__NICK "clang"
41 #if CDS_COMPILER_VERSION < 30600
42 # error "Compiler version error. Clang version 3.6.0 and above is supported"
45 #if defined(_LIBCPP_VERSION) && !defined(CDS_USE_BOOST_ATOMIC) && CDS_COMPILER_VERSION < 30700
46 // Note: Clang libc++ atomic leads to program crash.
47 // So, we use libcds atomic implementation
48 # define CDS_USE_LIBCDS_ATOMIC
52 #if defined( _MSC_VER )
53 # define CDS_OS_INTERFACE CDS_OSI_WINDOWS
55 # define CDS_OS_TYPE CDS_OS_WIN64
56 # define CDS_OS__NAME "Win64"
57 # define CDS_OS__NICK "Win64"
58 # elif defined(_WIN32)
59 # define CDS_OS_TYPE CDS_OS_WIN32
60 # define CDS_OS__NAME "Win32"
61 # define CDS_OS__NICK "Win32"
65 #include <cds/compiler/gcc/compiler_macro.h>
67 #define alignof __alignof__
69 // C++11 inline namespace
70 #define CDS_CXX11_INLINE_NAMESPACE_SUPPORT
72 #define CDS_CONSTEXPR constexpr
74 #define CDS_NOEXCEPT_SUPPORT noexcept
75 #define CDS_NOEXCEPT_SUPPORT_(expr) noexcept(expr)
77 // C++11 thread_local keyword
78 #if !(CDS_OS_TYPE == CDS_OS_OSX && CDS_COMPILER_VERSION < 30600)
80 // See http://stackoverflow.com/questions/23791060/c-thread-local-storage-clang-503-0-40-mac-osx
81 // http://stackoverflow.com/questions/28094794/why-does-apple-clang-disallow-c11-thread-local-when-official-clang-supports
83 # define CDS_CXX11_THREAD_LOCAL_SUPPORT
86 // Full SFINAE support
87 #define CDS_CXX11_SFINAE
89 // Inheriting constructors
90 #define CDS_CXX11_INHERITING_CTOR
93 #if CDS_COMPILER_VERSION >= 30400
94 # if __cplusplus < 201103
95 # define CDS_DEPRECATED( reason ) __attribute__((deprecated( reason )))
96 # elif __cplusplus == 201103 // C++11
97 # define CDS_DEPRECATED( reason ) [[gnu::deprecated(reason)]]
99 # define CDS_DEPRECATED( reason ) [[deprecated(reason)]]
102 # define CDS_DEPRECATED( reason ) __attribute__((deprecated( reason )))
105 #define CDS_NORETURN __attribute__((__noreturn__))
107 // *************************************************
109 #if defined(__has_feature) && __has_feature(thread_sanitizer)
110 # ifndef CDS_THREAD_SANITIZER_ENABLED
111 # define CDS_THREAD_SANITIZER_ENABLED
115 #if defined(__has_feature) && __has_feature(address_sanitizer)
116 # ifndef CDS_ADDRESS_SANITIZER_ENABLED
117 # define CDS_ADDRESS_SANITIZER_ENABLED
122 // *************************************************
125 #define CDS_TYPE_ALIGNMENT(n) __attribute__ ((aligned (n)))
126 #define CDS_CLASS_ALIGNMENT(n) __attribute__ ((aligned (n)))
127 #define CDS_DATA_ALIGNMENT(n) __attribute__ ((aligned (n)))
132 #define cds_likely( expr ) __builtin_expect( !!( expr ), 1 )
133 #define cds_unlikely( expr ) __builtin_expect( !!( expr ), 0 )
137 #if defined( __EXCEPTIONS ) && __EXCEPTIONS == 1
138 # define CDS_EXCEPTION_ENABLED
142 // double-width CAS support - only for libc++
143 // You can manually suppress wide-atomic support by defining in compiler command line:
144 // for 64bit platform: -DCDS_DISABLE_128BIT_ATOMIC
145 // for 32bit platform: -DCDS_DISABLE_64BIT_ATOMIC
146 #ifdef _LIBCPP_VERSION
147 # if CDS_BUILD_BITS == 64
148 # if !defined( CDS_DISABLE_128BIT_ATOMIC ) && defined( __GCC_HAVE_SYNC_COMPARE_AND_SWAP_16 )
149 # define CDS_DCAS_SUPPORT
152 # if !defined( CDS_DISABLE_64BIT_ATOMIC ) && defined( __GCC_HAVE_SYNC_COMPARE_AND_SWAP_8 )
153 # define CDS_DCAS_SUPPORT
158 #include <cds/compiler/gcc/compiler_barriers.h>
160 #endif // #ifndef CDSLIB_COMPILER_GCC_DEFS_H