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Check for native architecture and set GTSAM_COMPILE_OPTIONS_PUBLIC accordingly

release/4.3a0
GAECHTER TOYA Stefan 2022-09-23 12:52:56 +02:00
parent 0909c46339
commit ecd00f59d5
1 changed files with 27 additions and 12 deletions
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23
cmake/GtsamBuildTypes.cmake
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@ -1,6 +1,6 @@
include(CheckCXXCompilerFlag) # for check_cxx_compiler_flag() include(CheckCXXCompilerFlag) # for check_cxx_compiler_flag()
# Set cmake policy to recognize the AppleClang compiler # Set cmake policy to recognize the Apple Clang compiler
# independently from the Clang compiler. # independently from the Clang compiler.
if(POLICY CMP0025) if(POLICY CMP0025)
cmake_policy(SET CMP0025 NEW) cmake_policy(SET CMP0025 NEW)
@ -190,11 +190,26 @@ if(${CMAKE_CXX_COMPILER_ID} STREQUAL "Clang")
endif() endif()
if (NOT MSVC) if (NOT MSVC)
option(GTSAM_BUILD_WITH_MARCH_NATIVE "Enable/Disable building with all instructions supported by native architecture (binary may not be portable!)" OFF)
if(GTSAM_BUILD_WITH_MARCH_NATIVE AND (APPLE AND NOT CMAKE_SYSTEM_PROCESSOR STREQUAL "arm64"))
# Add as public flag so all dependant projects also use it, as required # Add as public flag so all dependant projects also use it, as required
# by Eigen to avid crashes due to SIMD vectorization: # by Eigen to avid crashes due to SIMD vectorization: option(GTSAM_BUILD_WITH_MARCH_NATIVE "Enable/Disable building with all instructions supported by native architecture (binary may not be portable!)" OFF)
if(APPLE AND (${CMAKE_CXX_COMPILER_ID} STREQUAL "Clang") AND ("${CMAKE_CXX_COMPILER_VERSION}" VERSION_LESS "15.0"))
if(GTSAM_BUILD_WITH_MARCH_NATIVE)
if(NOT CMAKE_SYSTEM_PROCESSOR STREQUAL "arm64")
list_append_cache(GTSAM_COMPILE_OPTIONS_PUBLIC "-march=native") list_append_cache(GTSAM_COMPILE_OPTIONS_PUBLIC "-march=native")
else()
message(WARNING "The option GTSAM_BUILD_WITH_MARCH_NATIVE is ignored, because native architecture is not supported.")
endif()
endif()
else()
include(CheckCXXCompilerFlag)
CHECK_CXX_COMPILER_FLAG("-march=native" COMPILER_SUPPORTS_MARCH_NATIVE)
if(GTSAM_BUILD_WITH_MARCH_NATIVE)
if(COMPILER_SUPPORTS_MARCH_NATIVE)
list_append_cache(GTSAM_COMPILE_OPTIONS_PUBLIC "-march=native")
else()
message(WARNING "The option GTSAM_BUILD_WITH_MARCH_NATIVE is ignored, because native architecture is not supported.")
endif()
endif()
endif() endif()
endif() endif()