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Option for SIMD compilation #29

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Option for SIMD compilation #29

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1 change: 1 addition & 0 deletions CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -40,6 +40,7 @@ option(PYTHON_BINDING_USER_INSTALL "Install the Python bindings in user space" O
option(PYTHON_BINDING_FORCE_PYTHON3 "Use pip3/python3 instead of pip/python" OFF)
option(DISABLE_TESTS "Disable unit tests." OFF)
option(BENCHMARKS "Generate benchmark." OFF)
option(ENABLE_SIMD "Build with all SIMD instructions on the current local machine" OFF)

SET(Eigen_REQUIRED "eigen3 >= 3.2.0")
SEARCH_FOR_EIGEN()
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16 changes: 16 additions & 0 deletions src/CMakeLists.txt
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Expand Up @@ -37,6 +37,22 @@ set(HEADERS SpaceVecAlg/MotionVec.h
# !!! Don't link against it !!!
add_library(SpaceVecAlg ${SOURCES} ${HEADERS})

if(ENABLE_SIMD)
if(MSVC)
target_compile_options(SpaceVecAlg PUBLIC /arch:SSE2 /arch:AVX /arch:AVX2)
elseif(CMAKE_COMPILER_IS_GNUCXX)
execute_process(
COMMAND ${CMAKE_CXX_COMPILER} -dumpfullversion -dumpversion OUTPUT_VARIABLE GCC_VERSION)
set(CXX_COMPILER_VERSION ${GCC_VERSION})
target_compile_options(SpaceVecAlg PUBLIC -march=native)
if(GCC_VERSION VERSION_GREATER 7.0)
target_compile_options(SpaceVecAlg PUBLIC -faligned-new)
endif()
elseif("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
target_compile_options(SpaceVecAlg PUBLIC -march=native -faligned-new)
endif()
endif()

if(DEFINED Eigen_INCLUDE_DIR)
target_include_directories(SpaceVecAlg SYSTEM INTERFACE "${Eigen_INCLUDE_DIR}")
else()
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