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Improve handling of GTSAM_BUILD_WITH_MARCH_NATIVE flag

release/4.3a0
GAECHTER TOYA Stefan 2022-10-19 14:54:24 +02:00
parent ecd00f59d5
commit d1fa38457a
1 changed files with 15 additions and 14 deletions
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29
cmake/GtsamBuildTypes.cmake
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@ -190,27 +190,28 @@ if(${CMAKE_CXX_COMPILER_ID} STREQUAL "Clang")
endif() endif()
if (NOT MSVC) if (NOT MSVC)
# Add as public flag so all dependant projects also use it, as required option(GTSAM_BUILD_WITH_MARCH_NATIVE "Enable/Disable building with all instructions supported by native architecture (binary may not be portable!)" OFF)
# by Eigen to avid crashes due to SIMD vectorization: option(GTSAM_BUILD_WITH_MARCH_NATIVE "Enable/Disable building with all instructions supported by native architecture (binary may not be portable!)" OFF) if(GTSAM_BUILD_WITH_MARCH_NATIVE)
if(APPLE AND (${CMAKE_CXX_COMPILER_ID} STREQUAL "Clang") AND ("${CMAKE_CXX_COMPILER_VERSION}" VERSION_LESS "15.0")) if(APPLE AND (${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") if(NOT CMAKE_SYSTEM_PROCESSOR STREQUAL "arm64")
# Add as public flag so all dependant projects also use it, as required
# by Eigen to avoid crashes due to SIMD vectorization:
list_append_cache(GTSAM_COMPILE_OPTIONS_PUBLIC "-march=native") list_append_cache(GTSAM_COMPILE_OPTIONS_PUBLIC "-march=native")
else() else()
message(WARNING "The option GTSAM_BUILD_WITH_MARCH_NATIVE is ignored, because native architecture is not supported.") message(WARNING "The option GTSAM_BUILD_WITH_MARCH_NATIVE is ignored, because native architecture is not supported.")
endif() endif() # CMAKE_SYSTEM_PROCESSOR
endif() else()
else() include(CheckCXXCompilerFlag)
include(CheckCXXCompilerFlag) CHECK_CXX_COMPILER_FLAG("-march=native" COMPILER_SUPPORTS_MARCH_NATIVE)
CHECK_CXX_COMPILER_FLAG("-march=native" COMPILER_SUPPORTS_MARCH_NATIVE)
if(GTSAM_BUILD_WITH_MARCH_NATIVE)
if(COMPILER_SUPPORTS_MARCH_NATIVE) if(COMPILER_SUPPORTS_MARCH_NATIVE)
list_append_cache(GTSAM_COMPILE_OPTIONS_PUBLIC "-march=native") # Add as public flag so all dependant projects also use it, as required
# by Eigen to avoid crashes due to SIMD vectorization:
list_append_cache(GTSAM_COMPILE_OPTIONS_PUBLIC "-march=native")
else() else()
message(WARNING "The option GTSAM_BUILD_WITH_MARCH_NATIVE is ignored, because native architecture is not supported.") message(WARNING "The option GTSAM_BUILD_WITH_MARCH_NATIVE is ignored, because native architecture is not supported.")
endif() endif() # COMPILER_SUPPORTS_MARCH_NATIVE
endif() endif() # APPLE
endif() endif() # GTSAM_BUILD_WITH_MARCH_NATIVE
endif() endif()
# Set up build type library postfixes # Set up build type library postfixes