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 __cplusplus < CDS_CPLUSPLUS_11
46 # error C++11 and above is required
49 #if defined(_LIBCPP_VERSION) && !defined(CDS_USE_BOOST_ATOMIC) && CDS_COMPILER_VERSION < 30700
50 // Note: Clang libc++ atomic leads to program crash.
51 // So, we use libcds atomic implementation
52 # define CDS_USE_LIBCDS_ATOMIC
56 #if defined( _MSC_VER )
57 # define CDS_OS_INTERFACE CDS_OSI_WINDOWS
59 # define CDS_OS_TYPE CDS_OS_WIN64
60 # define CDS_OS__NAME "Win64"
61 # define CDS_OS__NICK "Win64"
62 # elif defined(_WIN32)
63 # define CDS_OS_TYPE CDS_OS_WIN32
64 # define CDS_OS__NAME "Win32"
65 # define CDS_OS__NICK "Win32"
69 #include <cds/compiler/gcc/compiler_macro.h>
71 #define alignof __alignof__
73 // C++11 thread_local keyword
74 #if !(CDS_OS_TYPE == CDS_OS_OSX && CDS_COMPILER_VERSION < 30600)
76 // See http://stackoverflow.com/questions/23791060/c-thread-local-storage-clang-503-0-40-mac-osx
77 // http://stackoverflow.com/questions/28094794/why-does-apple-clang-disallow-c11-thread-local-when-official-clang-supports
79 # define CDS_CXX11_THREAD_LOCAL_SUPPORT
83 #if CDS_COMPILER_VERSION >= 30600
84 # if __cplusplus == CDS_CPLUSPLUS_11 // C++11
85 # define CDS_DEPRECATED( reason ) [[gnu::deprecated(reason)]]
87 # define CDS_DEPRECATED( reason ) [[deprecated(reason)]]
91 #define CDS_NORETURN __attribute__((__noreturn__))
93 // *************************************************
95 #if defined(__has_feature) && __has_feature(thread_sanitizer)
96 # ifndef CDS_THREAD_SANITIZER_ENABLED
97 # define CDS_THREAD_SANITIZER_ENABLED
101 #if defined(__has_feature) && __has_feature(address_sanitizer)
102 # ifndef CDS_ADDRESS_SANITIZER_ENABLED
103 # define CDS_ADDRESS_SANITIZER_ENABLED
108 // *************************************************
111 #define CDS_TYPE_ALIGNMENT(n) __attribute__ ((aligned (n)))
112 #define CDS_CLASS_ALIGNMENT(n) __attribute__ ((aligned (n)))
113 #define CDS_DATA_ALIGNMENT(n) __attribute__ ((aligned (n)))
118 #define cds_likely( expr ) __builtin_expect( !!( expr ), 1 )
119 #define cds_unlikely( expr ) __builtin_expect( !!( expr ), 0 )
122 #if defined( __EXCEPTIONS ) && __EXCEPTIONS == 1
123 # define CDS_EXCEPTION_ENABLED
127 // double-width CAS support - only for libc++
128 // You can manually suppress wide-atomic support by defining in compiler command line:
129 // for 64bit platform: -DCDS_DISABLE_128BIT_ATOMIC
130 // for 32bit platform: -DCDS_DISABLE_64BIT_ATOMIC
131 #ifdef _LIBCPP_VERSION
132 # if CDS_BUILD_BITS == 64
133 # if !defined( CDS_DISABLE_128BIT_ATOMIC ) && defined( __GCC_HAVE_SYNC_COMPARE_AND_SWAP_16 )
134 # define CDS_DCAS_SUPPORT
137 # if !defined( CDS_DISABLE_64BIT_ATOMIC ) && defined( __GCC_HAVE_SYNC_COMPARE_AND_SWAP_8 )
138 # define CDS_DCAS_SUPPORT
143 //if constexpr support (C++17)
145 # if defined( __cpp_if_constexpr ) && __cpp_if_constexpr >= 201606
146 # define constexpr_if if constexpr
150 #include <cds/compiler/gcc/compiler_barriers.h>
152 #endif // #ifndef CDSLIB_COMPILER_GCC_DEFS_H