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cmake: add detection of AVX, AVX2, SSE41
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,130 @@ | ||
| # - Add a given compiler flag to flags variables. | ||
| # AddCompilerFlag(<flag> [<var>]) | ||
| # or | ||
| # AddCompilerFlag(<flag> [C_FLAGS <var>] [CXX_FLAGS <var>] [C_RESULT <var>] | ||
| # [CXX_RESULT <var>]) | ||
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| #============================================================================= | ||
| # Copyright 2010-2015 Matthias Kretz <[email protected]> | ||
| # | ||
| # Redistribution and use in source and binary forms, with or without | ||
| # modification, are permitted provided that the following conditions are | ||
| # met: | ||
| # | ||
| # * Redistributions of source code must retain the above copyright notice, | ||
| # this list of conditions and the following disclaimer. | ||
| # | ||
| # * Redistributions in binary form must reproduce the above copyright notice, | ||
| # this list of conditions and the following disclaimer in the documentation | ||
| # and/or other materials provided with the distribution. | ||
| # | ||
| # * Neither the names of contributing organizations nor the | ||
| # names of its contributors may be used to endorse or promote products | ||
| # derived from this software without specific prior written permission. | ||
| # | ||
| # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS ``AS IS'' | ||
| # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
| # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | ||
| # ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR | ||
| # ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | ||
| # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | ||
| # SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER | ||
| # CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, | ||
| # OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | ||
| # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
| #============================================================================= | ||
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| get_filename_component(_currentDir "${CMAKE_CURRENT_LIST_FILE}" PATH) | ||
| include("${_currentDir}/CheckCCompilerFlag.cmake") | ||
| include("${_currentDir}/CheckCXXCompilerFlag.cmake") | ||
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| macro(AddCompilerFlag _flag) | ||
| string(REGEX REPLACE "[-.+/:= ]" "_" _flag_esc "${_flag}") | ||
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| set(_c_flags "CMAKE_C_FLAGS") | ||
| set(_cxx_flags "CMAKE_CXX_FLAGS") | ||
| set(_c_result tmp) | ||
| set(_cxx_result tmp) | ||
| if(${ARGC} EQUAL 2) | ||
| message(WARNING "Deprecated use of the AddCompilerFlag macro.") | ||
| unset(_c_result) | ||
| set(_cxx_result ${ARGV1}) | ||
| elseif(${ARGC} GREATER 2) | ||
| set(state 0) | ||
| unset(_c_flags) | ||
| unset(_cxx_flags) | ||
| unset(_c_result) | ||
| unset(_cxx_result) | ||
| foreach(_arg ${ARGN}) | ||
| if("x${_arg}" STREQUAL "xC_FLAGS") | ||
| set(state 1) | ||
| if(NOT DEFINED _c_result) | ||
| set(_c_result tmp0) | ||
| endif() | ||
| elseif("x${_arg}" STREQUAL "xCXX_FLAGS") | ||
| set(state 2) | ||
| if(NOT DEFINED _cxx_result) | ||
| set(_cxx_result tmp1) | ||
| endif() | ||
| elseif("x${_arg}" STREQUAL "xC_RESULT") | ||
| set(state 3) | ||
| elseif("x${_arg}" STREQUAL "xCXX_RESULT") | ||
| set(state 4) | ||
| elseif(state EQUAL 1) | ||
| set(_c_flags "${_arg}") | ||
| elseif(state EQUAL 2) | ||
| set(_cxx_flags "${_arg}") | ||
| elseif(state EQUAL 3) | ||
| set(_c_result "${_arg}") | ||
| elseif(state EQUAL 4) | ||
| set(_cxx_result "${_arg}") | ||
| else() | ||
| message(FATAL_ERROR "Syntax error for AddCompilerFlag") | ||
| endif() | ||
| endforeach() | ||
| endif() | ||
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| set(_c_code "int main() { return 0; }") | ||
| set(_cxx_code "int main() { return 0; }") | ||
| if("${_flag}" STREQUAL "-mfma") | ||
| # Compiling with FMA3 support may fail only at the assembler level. | ||
| # In that case we need to have such an instruction in the test code | ||
| set(_c_code "#include <immintrin.h> | ||
| __m128 foo(__m128 x) { return _mm_fmadd_ps(x, x, x); } | ||
| int main() { return 0; }") | ||
| set(_cxx_code "${_c_code}") | ||
| elseif("${_flag}" STREQUAL "-stdlib=libc++") | ||
| # Compiling with libc++ not only requires a compiler that understands it, but also | ||
| # the libc++ headers itself | ||
| set(_cxx_code "#include <iostream> | ||
| #include <cstdio> | ||
| int main() { return 0; }") | ||
| else() | ||
| set(_cxx_code "#include <cstdio> | ||
| int main() { return 0; }") | ||
| endif() | ||
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| if(DEFINED _c_result) | ||
| check_c_compiler_flag("${_flag}" check_c_compiler_flag_${_flag_esc} "${_c_code}") | ||
| set(${_c_result} ${check_c_compiler_flag_${_flag_esc}}) | ||
| endif() | ||
| if(DEFINED _cxx_result) | ||
| check_cxx_compiler_flag("${_flag}" check_cxx_compiler_flag_${_flag_esc} "${_cxx_code}") | ||
| set(${_cxx_result} ${check_cxx_compiler_flag_${_flag_esc}}) | ||
| endif() | ||
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| macro(my_append _list _flag _special) | ||
| if("x${_list}" STREQUAL "x${_special}") | ||
| set(${_list} "${${_list}} ${_flag}") | ||
| else() | ||
| list(APPEND ${_list} "${_flag}") | ||
| endif() | ||
| endmacro() | ||
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| if(check_c_compiler_flag_${_flag_esc} AND DEFINED _c_flags) | ||
| my_append(${_c_flags} "${_flag}" CMAKE_C_FLAGS) | ||
| endif() | ||
| if(check_cxx_compiler_flag_${_flag_esc} AND DEFINED _cxx_flags) | ||
| my_append(${_cxx_flags} "${_flag}" CMAKE_CXX_FLAGS) | ||
| endif() | ||
| endmacro(AddCompilerFlag) |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,73 @@ | ||
| # - Check whether the C compiler supports a given flag. | ||
| # CHECK_C_COMPILER_FLAG(<flag> <var>) | ||
| # <flag> - the compiler flag | ||
| # <var> - variable to store the result | ||
| # This internally calls the check_c_source_compiles macro. | ||
| # See help for CheckCSourceCompiles for a listing of variables | ||
| # that can modify the build. | ||
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| #============================================================================= | ||
| # Copyright 2006-2009 Kitware, Inc. | ||
| # Copyright 2006 Alexander Neundorf <[email protected]> | ||
| # Copyright 2011-2013 Matthias Kretz <[email protected]> | ||
| # | ||
| # Redistribution and use in source and binary forms, with or without | ||
| # modification, are permitted provided that the following conditions are | ||
| # met: | ||
| # | ||
| # * Redistributions of source code must retain the above copyright notice, | ||
| # this list of conditions and the following disclaimer. | ||
| # | ||
| # * Redistributions in binary form must reproduce the above copyright notice, | ||
| # this list of conditions and the following disclaimer in the documentation | ||
| # and/or other materials provided with the distribution. | ||
| # | ||
| # * The names of Kitware, Inc., the Insight Consortium, or the names of | ||
| # any consortium members, or of any contributors, may not be used to | ||
| # endorse or promote products derived from this software without | ||
| # specific prior written permission. | ||
| # | ||
| # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS ``AS IS'' | ||
| # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
| # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | ||
| # ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR | ||
| # ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | ||
| # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | ||
| # SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER | ||
| # CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, | ||
| # OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | ||
| # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
| #============================================================================= | ||
|
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| INCLUDE(CheckCSourceCompiles) | ||
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| MACRO (CHECK_C_COMPILER_FLAG _FLAG _RESULT) | ||
| SET(SAFE_CMAKE_REQUIRED_DEFINITIONS "${CMAKE_REQUIRED_DEFINITIONS}") | ||
| SET(CMAKE_REQUIRED_DEFINITIONS "${_FLAG}") | ||
| if(${ARGC} GREATER 2) | ||
| SET(TEST_SOURCE "${ARGV2}") | ||
| else() | ||
| SET(TEST_SOURCE "int main() { return 0;}") | ||
| endif() | ||
| CHECK_C_SOURCE_COMPILES("${TEST_SOURCE}" ${_RESULT} | ||
| # Some compilers do not fail with a bad flag | ||
| FAIL_REGEX "error: bad value (.*) for .* switch" # GNU | ||
| FAIL_REGEX "argument unused during compilation" # clang | ||
| FAIL_REGEX "is valid for .* but not for C" # GNU | ||
| FAIL_REGEX "unrecognized .*option" # GNU | ||
| FAIL_REGEX "ignored for target" # GNU | ||
| FAIL_REGEX "ignoring unknown option" # MSVC | ||
| FAIL_REGEX "warning D9002" # MSVC | ||
| FAIL_REGEX "[Uu]nknown option" # HP | ||
| FAIL_REGEX "[Ww]arning: [Oo]ption" # SunPro | ||
| FAIL_REGEX "command option .* is not recognized" # XL | ||
| FAIL_REGEX "WARNING: unknown flag:" # Open64 | ||
| FAIL_REGEX "command line error" # ICC | ||
| FAIL_REGEX "command line warning" # ICC | ||
| FAIL_REGEX "#10236:" # ICC: File not found | ||
| FAIL_REGEX " #10159: " # ICC | ||
| FAIL_REGEX " #10353: " # ICC: option '-mfma' ignored, suggest using '-march=core-avx2' | ||
| ) | ||
| SET (CMAKE_REQUIRED_DEFINITIONS "${SAFE_CMAKE_REQUIRED_DEFINITIONS}") | ||
| ENDMACRO (CHECK_C_COMPILER_FLAG) | ||
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