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Copy pathOpenCVCompilerOptimizations.cmake
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OpenCVCompilerOptimizations.cmake
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# x86/x86-64 arch:
# SSE / SSE2 (always available on 64-bit CPUs)
# SSE3 / SSSE3
# SSE4_1 / SSE4_2 / POPCNT
# AVX / AVX2 / AVX_512F
# FMA3
# ppc64le arch:
# VSX (always available on Power8)
# VSX3 (always available on Power9)
# CPU_{opt}_SUPPORTED=ON/OFF - compiler support (possibly with additional flag)
# CPU_{opt}_IMPLIES=<list>
# CPU_{opt}_FORCE=<list> - subset of "implies" list
# CPU_{opt}_GROUP=<list> - similar to "implies" list, but additionally merges compiler flags
# CPU_{opt}_FLAGS_ON=""
# CPU_{opt}_FEATURE_ALIAS - mapping to CV_CPU_* HWFeature enum
# Input variables:
# CPU_BASELINE=<list> - preferred list of baseline optimizations
# CPU_DISPATCH=<list> - preferred list of dispatched optimizations
# Advanced input variables:
# CPU_BASELINE_REQUIRE=<list> - list of required baseline optimizations
# CPU_DISPATCH_REQUIRE=<list> - list of required dispatched optimizations
# CPU_BASELINE_DISABLE=<list> - list of disabled baseline optimizations
# Output variables:
# CPU_BASELINE_FINAL=<list> - final list of enabled compiler optimizations
# CPU_DISPATCH_FINAL=<list> - final list of dispatched optimizations
#
# CPU_DISPATCH_FLAGS_${opt} - flags for source files compiled separately (<name>.avx2.cpp)
#
# CPU_{opt}_ENABLED_DEFAULT=ON/OFF - has compiler support without additional flag (CPU_BASELINE_DETECT=ON only)
set(CPU_ALL_OPTIMIZATIONS "SSE;SSE2;SSE3;SSSE3;SSE4_1;SSE4_2;POPCNT;AVX;FP16;AVX2;FMA3;AVX_512F;AVX512_SKX")
list(APPEND CPU_ALL_OPTIMIZATIONS NEON VFPV3 FP16)
list(APPEND CPU_ALL_OPTIMIZATIONS VSX VSX3)
list(REMOVE_DUPLICATES CPU_ALL_OPTIMIZATIONS)
ocv_update(CPU_VFPV3_FEATURE_ALIAS "")
set(HELP_CPU_BASELINE "Specify list of enabled baseline CPU optimizations")
set(HELP_CPU_BASELINE_REQUIRE "Specify list of required baseline CPU optimizations")
set(HELP_CPU_BASELINE_DISABLE "Specify list of forbidden baseline CPU optimizations")
set(HELP_CPU_DISPATCH "Specify list of dispatched CPU optimizations")
set(HELP_CPU_DISPATCH_REQUIRE "Specify list of required dispatched CPU optimizations")
foreach(var CPU_BASELINE CPU_BASELINE_REQUIRE CPU_BASELINE_DISABLE CPU_DISPATCH CPU_DISPATCH_REQUIRE)
if(DEFINED ${var})
string(REPLACE "," ";" _list "${${var}}")
set(${var} "${_list}" CACHE STRING "${HELP_${var}}" FORCE)
endif()
endforeach()
# process legacy flags
macro(ocv_optimization_process_obsolete_option legacy_flag OPT legacy_warn)
if(DEFINED "${legacy_flag}")
if("${legacy_warn}")
message(STATUS "WARNING: Option ${legacy_flag}='${${legacy_flag}}' is deprecated and should not be used anymore")
message(STATUS " Behaviour of this option is not backward compatible")
message(STATUS " Refer to 'CPU_BASELINE'/'CPU_DISPATCH' CMake options documentation")
endif()
if("${${legacy_flag}}")
if(NOT ";${CPU_BASELINE_REQUIRE};" MATCHES ";${OPT};")
set(CPU_BASELINE_REQUIRE "${CPU_BASELINE_REQUIRE};${OPT}" CACHE STRING "${HELP_CPU_BASELINE_REQUIRE}" FORCE)
endif()
else()
if(NOT ";${CPU_BASELINE_DISABLE};" MATCHES ";${OPT};")
set(CPU_BASELINE_DISABLE "${CPU_BASELINE_DISABLE};${OPT}" CACHE STRING "${HELP_CPU_BASELINE_DISABLE}" FORCE)
endif()
endif()
endif()
endmacro()
ocv_optimization_process_obsolete_option(ENABLE_SSE SSE ON)
ocv_optimization_process_obsolete_option(ENABLE_SSE2 SSE2 ON)
ocv_optimization_process_obsolete_option(ENABLE_SSE3 SSE3 ON)
ocv_optimization_process_obsolete_option(ENABLE_SSSE3 SSSE3 ON)
ocv_optimization_process_obsolete_option(ENABLE_SSE41 SSE4_1 ON)
ocv_optimization_process_obsolete_option(ENABLE_SSE42 SSE4_2 ON)
ocv_optimization_process_obsolete_option(ENABLE_POPCNT POPCNT ON)
ocv_optimization_process_obsolete_option(ENABLE_AVX AVX ON)
ocv_optimization_process_obsolete_option(ENABLE_AVX2 AVX2 ON)
ocv_optimization_process_obsolete_option(ENABLE_FMA3 FMA3 ON)
ocv_optimization_process_obsolete_option(ENABLE_VFPV3 VFPV3 OFF)
ocv_optimization_process_obsolete_option(ENABLE_NEON NEON OFF)
ocv_optimization_process_obsolete_option(ENABLE_VSX VSX ON)
macro(ocv_is_optimization_in_list resultvar check_opt)
set(__checked "")
set(__queue ${ARGN})
set(${resultvar} 0)
while(__queue AND NOT ${resultvar})
list(REMOVE_DUPLICATES __queue)
set(__queue_current ${__queue})
set(__queue "")
foreach(OPT ${__queue_current})
if("x${OPT}" STREQUAL "x${check_opt}")
set(${resultvar} 1)
break()
elseif(NOT ";${__checked};" MATCHES ";${OPT};")
list(APPEND __queue ${CPU_${OPT}_IMPLIES})
endif()
list(APPEND __checked ${OPT})
endforeach()
endwhile()
endmacro()
macro(ocv_is_optimization_in_force_list resultvar check_opt)
set(__checked "")
set(__queue ${ARGN})
set(${resultvar} 0)
while(__queue AND NOT ${resultvar})
list(REMOVE_DUPLICATES __queue)
set(__queue_current ${__queue})
set(__queue "")
foreach(OPT ${__queue_current})
if(OPT STREQUAL "${check_opt}")
set(${resultvar} 1)
break()
elseif(NOT ";${__checked};" MATCHES ";${OPT};")
list(APPEND __queue ${CPU_${OPT}_FORCE})
endif()
list(APPEND __checked ${OPT})
endforeach()
endwhile()
endmacro()
macro(ocv_append_optimization_flag var OPT)
if(CPU_${OPT}_FLAGS_CONFLICT)
string(REGEX REPLACE " ${CPU_${OPT}_FLAGS_CONFLICT}" "" ${var} " ${${var}} ")
string(REGEX REPLACE "^ +" "" ${var} "${${var}}")
endif()
set(${var} "${${var}} ${CPU_${OPT}_FLAGS_ON}")
endmacro()
# Support GCC -march=native or Intel Compiler -xHost flags
if(";${CPU_BASELINE};" MATCHES ";NATIVE;" OR ";${CPU_BASELINE};" MATCHES ";HOST;")
set(CPU_BASELINE_DETECT ON)
set(_add_native_flag ON)
elseif(";${CPU_BASELINE};" MATCHES ";DETECT;")
set(CPU_BASELINE_DETECT ON)
elseif(" ${CMAKE_CXX_FLAGS} " MATCHES " -march=native | -xHost | /QxHost ")
if(DEFINED CPU_BASELINE)
message(STATUS "CPU: Detected '-march=native' or '-xHost' compiler flag. Force CPU_BASELINE=DETECT.")
endif()
set(CPU_BASELINE "DETECT" CACHE STRING "${HELP_CPU_BASELINE}")
set(CPU_BASELINE_DETECT ON)
endif()
if(X86 OR X86_64)
ocv_update(CPU_KNOWN_OPTIMIZATIONS "SSE;SSE2;SSE3;SSSE3;SSE4_1;POPCNT;SSE4_2;FP16;FMA3;AVX;AVX2;AVX_512F;AVX512_SKX")
ocv_update(CPU_AVX512_SKX_GROUP "AVX_512F;AVX_512CD;AVX_512BW;AVX_512DQ;AVX_512VL")
ocv_update(CPU_SSE_TEST_FILE "${OpenCV_SOURCE_DIR}/cmake/checks/cpu_sse.cpp")
ocv_update(CPU_SSE2_TEST_FILE "${OpenCV_SOURCE_DIR}/cmake/checks/cpu_sse2.cpp")
ocv_update(CPU_SSE3_TEST_FILE "${OpenCV_SOURCE_DIR}/cmake/checks/cpu_sse3.cpp")
ocv_update(CPU_SSSE3_TEST_FILE "${OpenCV_SOURCE_DIR}/cmake/checks/cpu_ssse3.cpp")
ocv_update(CPU_SSE4_1_TEST_FILE "${OpenCV_SOURCE_DIR}/cmake/checks/cpu_sse41.cpp")
ocv_update(CPU_SSE4_2_TEST_FILE "${OpenCV_SOURCE_DIR}/cmake/checks/cpu_sse42.cpp")
ocv_update(CPU_POPCNT_TEST_FILE "${OpenCV_SOURCE_DIR}/cmake/checks/cpu_popcnt.cpp")
ocv_update(CPU_AVX_TEST_FILE "${OpenCV_SOURCE_DIR}/cmake/checks/cpu_avx.cpp")
ocv_update(CPU_AVX2_TEST_FILE "${OpenCV_SOURCE_DIR}/cmake/checks/cpu_avx2.cpp")
ocv_update(CPU_FP16_TEST_FILE "${OpenCV_SOURCE_DIR}/cmake/checks/cpu_fp16.cpp")
ocv_update(CPU_AVX_512F_TEST_FILE "${OpenCV_SOURCE_DIR}/cmake/checks/cpu_avx512.cpp")
ocv_update(CPU_AVX512_SKX_TEST_FILE "${OpenCV_SOURCE_DIR}/cmake/checks/cpu_avx512skx.cpp")
if(NOT OPENCV_CPU_OPT_IMPLIES_IGNORE)
ocv_update(CPU_AVX_512F_IMPLIES "AVX2")
ocv_update(CPU_AVX_512F_FORCE "") # Don't force other optimizations
ocv_update(CPU_AVX2_IMPLIES "AVX;FMA3;FP16")
ocv_update(CPU_FMA3_IMPLIES "AVX2")
ocv_update(CPU_FMA3_FORCE "") # Don't force other optimizations
ocv_update(CPU_FP16_IMPLIES "AVX")
ocv_update(CPU_FP16_FORCE "") # Don't force other optimizations
ocv_update(CPU_AVX_IMPLIES "SSE4_2")
ocv_update(CPU_SSE4_2_IMPLIES "SSE4_1;POPCNT")
ocv_update(CPU_POPCNT_IMPLIES "SSE4_1")
ocv_update(CPU_POPCNT_FORCE "") # Don't force other optimizations
ocv_update(CPU_SSE4_1_IMPLIES "SSE3;SSSE3")
ocv_update(CPU_SSSE3_IMPLIES "SSE3")
ocv_update(CPU_SSE3_IMPLIES "SSE2")
ocv_update(CPU_SSE2_IMPLIES "SSE")
endif()
if(CV_ICC)
macro(ocv_intel_compiler_optimization_option name unix_flags msvc_flags)
ocv_update(CPU_${name}_FLAGS_NAME "${name}")
if(MSVC)
set(enable_flags "${msvc_flags}")
set(flags_conflict "/arch:[^ ]+")
else()
set(enable_flags "${unix_flags}")
set(flags_conflict "-msse[^ ]*|-mssse3|-mavx[^ ]*|-march[^ ]+")
endif()
ocv_update(CPU_${name}_FLAGS_ON "${enable_flags}")
if(flags_conflict)
ocv_update(CPU_${name}_FLAGS_CONFLICT "${flags_conflict}")
endif()
endmacro()
ocv_intel_compiler_optimization_option(AVX2 "-march=core-avx2" "/arch:CORE-AVX2")
ocv_intel_compiler_optimization_option(FP16 "-mavx" "/arch:AVX")
ocv_intel_compiler_optimization_option(AVX "-mavx" "/arch:AVX")
ocv_intel_compiler_optimization_option(FMA3 "" "")
ocv_intel_compiler_optimization_option(POPCNT "" "")
ocv_intel_compiler_optimization_option(SSE4_2 "-msse4.2" "/arch:SSE4.2")
ocv_intel_compiler_optimization_option(SSE4_1 "-msse4.1" "/arch:SSE4.1")
ocv_intel_compiler_optimization_option(SSE3 "-msse3" "/arch:SSE3")
ocv_intel_compiler_optimization_option(SSSE3 "-mssse3" "/arch:SSSE3")
ocv_intel_compiler_optimization_option(SSE2 "-msse2" "/arch:SSE2")
if(NOT X86_64) # x64 compiler doesn't support /arch:sse
ocv_intel_compiler_optimization_option(SSE "-msse" "/arch:SSE")
endif()
ocv_intel_compiler_optimization_option(AVX_512F "-march=common-avx512" "/arch:COMMON-AVX512")
ocv_intel_compiler_optimization_option(AVX512_SKX "-march=core-avx512" "/arch:CORE-AVX512")
elseif(CV_GCC OR CV_CLANG)
ocv_update(CPU_AVX2_FLAGS_ON "-mavx2")
ocv_update(CPU_FP16_FLAGS_ON "-mf16c")
ocv_update(CPU_AVX_FLAGS_ON "-mavx")
ocv_update(CPU_FMA3_FLAGS_ON "-mfma")
ocv_update(CPU_POPCNT_FLAGS_ON "-mpopcnt")
ocv_update(CPU_SSE4_2_FLAGS_ON "-msse4.2")
ocv_update(CPU_SSE4_1_FLAGS_ON "-msse4.1")
ocv_update(CPU_SSE3_FLAGS_ON "-msse3")
ocv_update(CPU_SSSE3_FLAGS_ON "-mssse3")
ocv_update(CPU_SSE2_FLAGS_ON "-msse2")
ocv_update(CPU_SSE_FLAGS_ON "-msse")
if(NOT (CV_GCC AND CMAKE_CXX_COMPILER_VERSION VERSION_LESS "5.0")) # GCC >= 5.0
# -mavx512f -mavx512pf -mavx512er -mavx512cd -mavx512vl -mavx512bw -mavx512dq -mavx512ifma -mavx512vbmi
ocv_update(CPU_AVX_512F_FLAGS_ON "-mavx512f")
ocv_update(CPU_AVX512_SKX_FLAGS_ON "-mavx512f -mavx512cd -mavx512vl -mavx512bw -mavx512dq")
else()
ocv_update(CPU_AVX_512F_SUPPORTED OFF)
ocv_update(CPU_AVX512_SKX_SUPPORTED OFF)
endif()
elseif(MSVC)
ocv_update(CPU_AVX2_FLAGS_ON "/arch:AVX2")
ocv_update(CPU_AVX_FLAGS_ON "/arch:AVX")
ocv_update(CPU_FP16_FLAGS_ON "/arch:AVX")
if(NOT MSVC64)
# 64-bit MSVC compiler uses SSE/SSE2 by default
ocv_update(CPU_SSE_FLAGS_ON "/arch:SSE")
ocv_update(CPU_SSE_SUPPORTED ON)
ocv_update(CPU_SSE2_FLAGS_ON "/arch:SSE2")
ocv_update(CPU_SSE2_SUPPORTED ON)
else()
ocv_update(CPU_SSE_SUPPORTED ON)
ocv_update(CPU_SSE2_SUPPORTED ON)
endif()
# Other instruction sets are supported by default since MSVC 2008 at least
else()
message(WARNING "TODO: Unsupported compiler")
endif()
if(NOT DEFINED CPU_DISPATCH)
if(X86_64)
set(CPU_DISPATCH "SSE4_1;SSE4_2;AVX;FP16;AVX2;AVX512_SKX" CACHE STRING "${HELP_CPU_DISPATCH}")
else()
set(CPU_DISPATCH "SSE4_1;SSE4_2;AVX;FP16" CACHE STRING "${HELP_CPU_DISPATCH}")
endif()
endif()
if(NOT DEFINED CPU_BASELINE)
if(APPLE)
# MacOS X has limited set of possible supported H/W, so compiler is configured well
set(CPU_BASELINE "DETECT" CACHE STRING "${HELP_CPU_BASELINE}")
elseif(X86_64)
set(CPU_BASELINE "SSE3" CACHE STRING "${HELP_CPU_BASELINE}")
else()
set(CPU_BASELINE "SSE2" CACHE STRING "${HELP_CPU_BASELINE}")
endif()
endif()
elseif(ARM OR AARCH64)
ocv_update(CPU_NEON_TEST_FILE "${OpenCV_SOURCE_DIR}/cmake/checks/cpu_neon.cpp")
ocv_update(CPU_FP16_TEST_FILE "${OpenCV_SOURCE_DIR}/cmake/checks/cpu_fp16.cpp")
if(NOT AARCH64)
ocv_update(CPU_KNOWN_OPTIMIZATIONS "VFPV3;NEON;FP16")
if(NOT MSVC)
ocv_update(CPU_VFPV3_FLAGS_ON "-mfpu=vfpv3")
ocv_update(CPU_NEON_FLAGS_ON "-mfpu=neon")
ocv_update(CPU_NEON_FLAGS_CONFLICT "-mfpu=[^ ]*")
ocv_update(CPU_FP16_FLAGS_ON "-mfpu=neon-fp16")
ocv_update(CPU_FP16_FLAGS_CONFLICT "-mfpu=[^ ]*")
endif()
ocv_update(CPU_FP16_IMPLIES "NEON")
else()
ocv_update(CPU_KNOWN_OPTIMIZATIONS "NEON;FP16")
ocv_update(CPU_NEON_FLAGS_ON "")
ocv_update(CPU_FP16_IMPLIES "NEON")
set(CPU_BASELINE "NEON;FP16" CACHE STRING "${HELP_CPU_BASELINE}")
endif()
elseif(PPC64LE)
ocv_update(CPU_KNOWN_OPTIMIZATIONS "VSX;VSX3")
ocv_update(CPU_VSX_TEST_FILE "${OpenCV_SOURCE_DIR}/cmake/checks/cpu_vsx.cpp")
ocv_update(CPU_VSX3_TEST_FILE "${OpenCV_SOURCE_DIR}/cmake/checks/cpu_vsx3.cpp")
if(NOT OPENCV_CPU_OPT_IMPLIES_IGNORE)
ocv_update(CPU_VSX3_IMPLIES "VSX")
endif()
if(CV_CLANG AND (NOT ${CMAKE_CXX_COMPILER} MATCHES "xlc"))
ocv_update(CPU_VSX_FLAGS_ON "-mvsx -maltivec")
ocv_update(CPU_VSX3_FLAGS_ON "-mpower9-vector")
else()
ocv_update(CPU_VSX_FLAGS_ON "-mcpu=power8")
ocv_update(CPU_VSX3_FLAGS_ON "-mcpu=power9 -mtune=power9")
endif()
set(CPU_DISPATCH "VSX3" CACHE STRING "${HELP_CPU_DISPATCH}")
set(CPU_BASELINE "VSX" CACHE STRING "${HELP_CPU_BASELINE}")
endif()
# Helper values for cmake-gui
set(CPU_BASELINE "DETECT" CACHE STRING "${HELP_CPU_BASELINE}")
set(CPU_DISPATCH "" CACHE STRING "${HELP_CPU_DISPATCH}")
set_property(CACHE CPU_BASELINE PROPERTY STRINGS "" ${CPU_KNOWN_OPTIMIZATIONS})
set_property(CACHE CPU_DISPATCH PROPERTY STRINGS "" ${CPU_KNOWN_OPTIMIZATIONS})
# Update CPU_BASELINE_DETECT flag
if(";${CPU_BASELINE};" MATCHES ";DETECT;")
set(CPU_BASELINE_DETECT ON)
endif()
set(CPU_BASELINE_FLAGS "")
set(CPU_BASELINE_FINAL "")
set(CPU_DISPATCH_FINAL "")
if(CV_DISABLE_OPTIMIZATION)
set(CPU_DISPATCH "")
set(CPU_DISPATCH_REQUIRE "")
endif()
macro(ocv_check_compiler_optimization OPT)
if(NOT DEFINED CPU_${OPT}_SUPPORTED)
if((DEFINED CPU_${OPT}_FLAGS_ON AND NOT "x${CPU_${OPT}_FLAGS_ON}" STREQUAL "x") OR CPU_${OPT}_TEST_FILE)
set(_varname "")
if(CPU_${OPT}_TEST_FILE)
set(__available 0)
if(CPU_BASELINE_DETECT)
set(_varname "HAVE_CPU_${OPT}_SUPPORT")
ocv_check_compiler_flag(CXX "${CPU_BASELINE_FLAGS}" "${_varname}" "${CPU_${OPT}_TEST_FILE}")
if(${_varname})
list(APPEND CPU_BASELINE_FINAL ${OPT})
set(CPU_${OPT}_ENABLED_DEFAULT ON)
set(__available 1)
endif()
endif()
if(NOT __available)
if(NOT "x${CPU_${OPT}_FLAGS_NAME}" STREQUAL "x")
set(_varname "HAVE_CPU_${CPU_${OPT}_FLAGS_NAME}")
set(_compile_flags "${CPU_BASELINE_FLAGS}")
ocv_append_optimization_flag(_compile_flags ${OPT})
ocv_check_compiler_flag(CXX "${_compile_flags}" "${_varname}" "${CPU_${OPT}_TEST_FILE}")
elseif(NOT "x${CPU_${OPT}_FLAGS_ON}" STREQUAL "x")
ocv_check_flag_support(CXX "${CPU_${OPT}_FLAGS_ON}" _varname "" "${CPU_${OPT}_TEST_FILE}")
else()
set(_varname "HAVE_CPU_${OPT}_SUPPORT")
set(_compile_flags "${CPU_BASELINE_FLAGS}")
ocv_append_optimization_flag(_compile_flags ${OPT})
ocv_check_compiler_flag(CXX "${_compile_flags}" "${_varname}" "${CPU_${OPT}_TEST_FILE}")
endif()
endif()
else()
ocv_check_flag_support(CXX "${CPU_${OPT}_FLAGS_ON}" _varname "")
endif()
if(_varname AND ${_varname})
set(CPU_${OPT}_SUPPORTED ON)
elseif(NOT CPU_${OPT}_SUPPORTED)
message(STATUS "${OPT} is not supported by C++ compiler")
endif()
else()
set(CPU_${OPT}_SUPPORTED ON)
endif()
endif()
endmacro()
foreach(OPT ${CPU_KNOWN_OPTIMIZATIONS})
set(CPU_${OPT}_USAGE_COUNT 0 CACHE INTERNAL "")
if("${CPU_${OPT}_FLAGS_ON}" STREQUAL "disabled")
set(CPU_${OPT}_SUPPORTED OFF)
elseif(DEFINED CPU_${OPT}_GROUP)
if(NOT DEFINED CPU_${OPT}_IMPLIES)
set(CPU_${OPT}_IMPLIES "${CPU_${OPT}_GROUP}")
endif()
set(__disabled 0)
set(__flags "")
foreach(OPT2 ${CPU_${OPT}_GROUP})
if("${CPU_${OPT2}_FLAGS_ON}" STREQUAL "disabled" OR (DEFINED CPU_${OPT2}_SUPPORTED AND NOT CPU_${OPT}_SUPPORTED))
set(__disabled 1)
endif()
set(__flags "${__flags} ${CPU_${OPT2}_FLAGS_ON}")
string(STRIP "${__flags}" __flags)
endforeach()
if(__disabled)
set(CPU_${OPT}_SUPPORTED OFF)
else()
if(NOT DEFINED CPU_${OPT}_FLAGS_ON)
set(CPU_${OPT}_FLAGS_ON "${__flags}")
endif()
endif()
endif()
if(NOT DEFINED CPU_${OPT}_FORCE)
set(CPU_${OPT}_FORCE "${CPU_${OPT}_IMPLIES}")
endif()
endforeach()
if(_add_native_flag)
set(_varname "HAVE_CPU_NATIVE_SUPPORT")
ocv_check_compiler_flag(CXX "-march=native" "${_varname}" "")
if(${_varname})
set(CPU_BASELINE_FLAGS "${CPU_BASELINE_FLAGS} -march=native")
else()
set(_varname "HAVE_CPU_HOST_SUPPORT")
if(MSVC)
set(_flag "/QxHost")
else()
set(_flag "-xHost")
endif()
ocv_check_compiler_flag(CXX "${_flag}" "${_varname}" "")
if(${_varname})
set(CPU_BASELINE_FLAGS "${CPU_BASELINE_FLAGS} ${_flag}")
endif()
endif()
endif()
foreach(OPT ${CPU_KNOWN_OPTIMIZATIONS})
set(__is_disabled 0)
foreach(OPT2 ${CPU_BASELINE_DISABLE})
ocv_is_optimization_in_list(__is_disabled ${OPT2} ${OPT})
if(__is_disabled)
break()
endif()
endforeach()
if(__is_disabled)
set(__is_from_baseline 0)
else()
if(CPU_${OPT}_SUPPORTED AND CPU_BASELINE_DETECT)
list(APPEND CPU_BASELINE_FINAL ${OPT})
endif()
ocv_is_optimization_in_list(__is_from_baseline ${OPT} ${CPU_BASELINE_REQUIRE})
if(NOT __is_from_baseline)
ocv_is_optimization_in_list(__is_from_baseline ${OPT} ${CPU_BASELINE})
endif()
endif()
ocv_is_optimization_in_list(__is_from_dispatch ${OPT} ${CPU_DISPATCH_REQUIRE})
if(NOT __is_from_dispatch)
ocv_is_optimization_in_list(__is_from_dispatch ${OPT} ${CPU_DISPATCH})
endif()
if(__is_from_dispatch OR __is_from_baseline OR CPU_BASELINE_DETECT)
ocv_check_compiler_optimization(${OPT})
endif()
if(CPU_BASELINE_DETECT AND NOT __is_from_baseline AND NOT __is_disabled)
ocv_is_optimization_in_list(__is_from_baseline ${OPT} ${CPU_BASELINE_FINAL})
endif()
if(CPU_${OPT}_SUPPORTED)
if(";${CPU_DISPATCH};" MATCHES ";${OPT};" AND NOT __is_from_baseline)
list(APPEND CPU_DISPATCH_FINAL ${OPT})
elseif(__is_from_baseline)
if(NOT ";${CPU_BASELINE_FINAL};" MATCHES ";${OPT};")
list(APPEND CPU_BASELINE_FINAL ${OPT})
endif()
if(NOT CPU_${OPT}_ENABLED_DEFAULT) # Don't change compiler flags in 'detection' mode
ocv_append_optimization_flag(CPU_BASELINE_FLAGS ${OPT})
endif()
endif()
endif()
endforeach()
foreach(OPT ${CPU_BASELINE_REQUIRE})
if(NOT ";${CPU_BASELINE_FINAL};" MATCHES ";${OPT};")
message(SEND_ERROR "Required baseline optimization is not supported: ${OPT} (CPU_BASELINE_REQUIRE=${CPU_BASELINE_REQUIRE})")
endif()
endforeach()
foreach(OPT ${CPU_BASELINE})
if(OPT STREQUAL "DETECT" OR OPT STREQUAL "HOST" OR OPT STREQUAL "NATIVE")
# nothing
elseif(NOT ";${CPU_BASELINE_FINAL};" MATCHES ";${OPT};")
message(STATUS "Optimization ${OPT} is not available, skipped")
endif()
endforeach()
foreach(OPT ${CPU_DISPATCH_REQUIRE})
if(";${CPU_DISPATCH_FINAL};" MATCHES ";${OPT};")
# OK
elseif(";${CPU_BASELINE_FINAL};" MATCHES ";${OPT};")
message(SEND_ERROR "Dispatched optimization ${OPT} is in baseline list (CPU_DISPATCH_REQUIRE=${CPU_DISPATCH_REQUIRE})")
else()
message(SEND_ERROR "Required dispatch optimization is not supported: ${OPT} (CPU_DISPATCH_REQUIRE=${CPU_DISPATCH_REQUIRE})")
endif()
endforeach()
foreach(OPT ${CPU_DISPATCH})
if(";${CPU_DISPATCH_FINAL};" MATCHES ";${OPT};")
# OK
elseif(";${CPU_BASELINE_FINAL};" MATCHES ";${OPT};")
# OK
else()
message(STATUS "Dispatch optimization ${OPT} is not available, skipped")
endif()
endforeach()
#message(STATUS "CPU_BASELINE_FINAL=${CPU_BASELINE_FINAL}")
#message(STATUS "CPU_DISPATCH_FINAL=${CPU_DISPATCH_FINAL}")
#if(CPU_DISPATCH_FINAL AND NOT PYTHON_DEFAULT_EXECUTABLE)
# message(FATAL_ERROR "Python is required for CPU dispatched optimization support")
#endif()
macro(ocv_compiler_optimization_options)
set(__flags "${OPENCV_EXTRA_CXX_FLAGS} ${CPU_BASELINE_FLAGS}")
if(NOT __flags STREQUAL CACHED_CPU_BASELINE_FLAGS)
set(CACHED_CPU_BASELINE_FLAGS "${__flags}" CACHE INTERNAL "" FORCE)
ocv_clear_vars(HAVE_CPU_BASELINE_FLAGS)
endif()
ocv_check_compiler_flag(CXX "${__flags}" HAVE_CPU_BASELINE_FLAGS)
if(NOT HAVE_CPU_BASELINE_FLAGS)
message(FATAL_ERROR "Compiler doesn't support baseline optimization flags: ${CPU_BASELINE_FLAGS}")
endif()
add_extra_compiler_option_force("${CPU_BASELINE_FLAGS}")
foreach(OPT ${CPU_DISPATCH_FINAL})
set(__dispatch_flags "")
set(__dispatch_definitions "")
set(__dispatch_opts "")
set(__dispatch_opts_force "")
foreach(OPT2 ${CPU_KNOWN_OPTIMIZATIONS})
if(NOT CPU_${OPT2}_SUPPORTED)
#continue()
else()
ocv_is_optimization_in_list(__is_from_baseline ${OPT2} ${CPU_BASELINE_FINAL})
if(NOT __is_from_baseline)
ocv_is_optimization_in_list(__is_active ${OPT2} ${OPT})
if(__is_active)
ocv_append_optimization_flag(__dispatch_flags ${OPT2})
list(APPEND __dispatch_definitions "CV_CPU_COMPILE_${OPT2}=1")
list(APPEND __dispatch_opts "${OPT2}")
endif()
ocv_is_optimization_in_force_list(__is_force ${OPT2} ${OPT})
if(__is_force)
list(APPEND __dispatch_opts_force "${OPT2}")
endif()
endif()
endif()
endforeach()
set(__flags "${OPENCV_EXTRA_CXX_FLAGS} ${__dispatch_flags}")
if(NOT __flags STREQUAL CACHED_CPU_DISPATCH_${OPT}_FLAGS)
set(CACHED_CPU_DISPATCH_${OPT}_FLAGS "${__flags}" CACHE INTERNAL "" FORCE)
ocv_clear_vars(HAVE_CPU_DISPATCH_FLAGS_${OPT})
endif()
ocv_check_compiler_flag(CXX "${__flags}" HAVE_CPU_DISPATCH_FLAGS_${OPT})
if(NOT HAVE_CPU_DISPATCH_FLAGS_${OPT})
message(FATAL_ERROR "Compiler doesn't support optimization flags for ${OPT} dispatch mode: ${__dispatch_flags}")
endif()
set(CPU_DISPATCH_FLAGS_${OPT} "${__dispatch_flags}")
set(CPU_DISPATCH_DEFINITIONS_${OPT} "${__dispatch_definitions}")
set(CPU_DISPATCH_${OPT}_INCLUDED "${__dispatch_opts}")
set(CPU_DISPATCH_${OPT}_FORCED "${__dispatch_opts_force}")
endforeach()
if(ENABLE_POWERPC)
add_extra_compiler_option("-mcpu=G3 -mtune=G5")
endif()
if(ARM)
add_extra_compiler_option("-mfp16-format=ieee")
endif(ARM)
endmacro()
macro(ocv_compiler_optimization_options_finalize)
if((CV_GCC OR CV_CLANG) AND (X86 OR X86_64))
if(NOT APPLE AND CMAKE_SIZEOF_VOID_P EQUAL 4)
if(OPENCV_EXTRA_CXX_FLAGS MATCHES "-m(sse2|avx)")
add_extra_compiler_option(-mfpmath=sse) # !! important - be on the same wave with x64 compilers
else()
add_extra_compiler_option(-mfpmath=387)
endif()
endif()
endif()
if(MSVC)
# Generate Intrinsic Functions
set(OPENCV_EXTRA_FLAGS "${OPENCV_EXTRA_FLAGS} /Oi")
if((X86 OR X86_64) AND CMAKE_SIZEOF_VOID_P EQUAL 4 AND ";${CPU_BASELINE_FINAL};" MATCHES ";SSE;")
set(OPENCV_EXTRA_FLAGS "${OPENCV_EXTRA_FLAGS} /fp:fast") # !! important - be on the same wave with x64 compilers
endif()
endif(MSVC)
endmacro()
macro(ocv_compiler_optimization_process_sources SOURCES_VAR_NAME LIBS_VAR_NAME TARGET_BASE_NAME)
set(__result "")
set(__result_libs "")
foreach(OPT ${CPU_DISPATCH_FINAL})
set(__result_${OPT} "")
endforeach()
foreach(fname ${${SOURCES_VAR_NAME}})
string(TOLOWER "${fname}" fname_LOWER)
get_filename_component(fname_LOWER "${fname_LOWER}" NAME)
if(fname_LOWER MATCHES ".+\\.([^\\.]*)\\.cpp$")
string(TOUPPER "${CMAKE_MATCH_1}" OPT_)
if(OPT_ MATCHES "(CUDA.*|DISPATCH.*|OCL)") # don't touch files like filename.cuda.cpp
list(APPEND __result "${fname}")
#continue()
elseif(CV_DISABLE_OPTIMIZATION OR NOT CV_ENABLE_INTRINSICS)
ocv_get_smart_file_name(fname_ "${fname}")
message(STATUS "Excluding from source files list (optimization is disabled): ${fname_}")
#continue()
else()
get_source_file_property(__definitions "${fname}" COMPILE_DEFINITIONS)
if(__definitions)
list(APPEND __definitions "CV_CPU_DISPATCH_MODE=${OPT_}")
else()
set(__definitions "CV_CPU_DISPATCH_MODE=${OPT_}")
endif()
set_source_files_properties("${fname}" PROPERTIES COMPILE_DEFINITIONS "${__definitions}")
set(__opt_found 0)
foreach(OPT ${CPU_BASELINE_FINAL})
string(TOLOWER "${OPT}" OPT_LOWER)
if(fname_LOWER MATCHES "\\.${OPT_LOWER}\\.cpp$")
#message("${fname} BASELINE-${OPT}")
set(__opt_found 1)
list(APPEND __result "${fname}")
break()
endif()
endforeach()
foreach(OPT ${CPU_DISPATCH_FINAL})
foreach(OPT2 ${CPU_DISPATCH_${OPT}_FORCED})
string(TOLOWER "${OPT2}" OPT2_LOWER)
if(fname_LOWER MATCHES "\\.${OPT2_LOWER}\\.cpp$")
list(APPEND __result_${OPT} "${fname}")
math(EXPR CPU_${OPT}_USAGE_COUNT "${CPU_${OPT}_USAGE_COUNT}+1")
set(CPU_${OPT}_USAGE_COUNT "${CPU_${OPT}_USAGE_COUNT}" CACHE INTERNAL "" FORCE)
#message("(${CPU_${OPT}_USAGE_COUNT})${fname} ${OPT}")
#message(" ${CPU_DISPATCH_${OPT}_INCLUDED}")
#message(" ${CPU_DISPATCH_DEFINITIONS_${OPT}}")
#message(" ${CPU_DISPATCH_FLAGS_${OPT}}")
set(__opt_found 1)
break()
endif()
endforeach()
if(__opt_found)
set(__opt_found 1)
break()
endif()
endforeach()
if(NOT __opt_found)
ocv_get_smart_file_name(fname_ "${fname}")
message(STATUS "Excluding from source files list: ${fname_}")
endif()
endif()
else()
list(APPEND __result "${fname}")
endif()
endforeach()
foreach(OPT ${CPU_DISPATCH_FINAL})
if(__result_${OPT})
#message("${OPT}: ${__result_${OPT}}")
if(CMAKE_GENERATOR MATCHES "^Visual")
# extra flags are added before common flags, so switching between optimizations doesn't work correctly
# Also CMAKE_CXX_FLAGS doesn't work (it is directory-based, so add_subdirectory is required)
add_library(${TARGET_BASE_NAME}_${OPT} OBJECT ${__result_${OPT}})
ocv_append_dependant_targets(${TARGET_BASE_NAME} ${TARGET_BASE_NAME}_${OPT})
set_target_properties(${TARGET_BASE_NAME}_${OPT} PROPERTIES COMPILE_DEFINITIONS "${CPU_DISPATCH_DEFINITIONS_${OPT}}")
set_target_properties(${TARGET_BASE_NAME}_${OPT} PROPERTIES COMPILE_FLAGS "${CPU_DISPATCH_FLAGS_${OPT}}")
target_include_directories(${TARGET_BASE_NAME}_${OPT} PRIVATE $<TARGET_PROPERTY:${TARGET_BASE_NAME},INCLUDE_DIRECTORIES>)
#list(APPEND __result_libs ${TARGET_BASE_NAME}_${OPT})
list(APPEND __result "$<TARGET_OBJECTS:${TARGET_BASE_NAME}_${OPT}>")
if(ENABLE_SOLUTION_FOLDERS)
set_target_properties(${TARGET_BASE_NAME}_${OPT} PROPERTIES FOLDER "dispatched")
endif()
else()
foreach(fname ${__result_${OPT}})
get_source_file_property(__definitions "${fname}" COMPILE_DEFINITIONS)
if(__definitions)
list(APPEND __definitions "${CPU_DISPATCH_DEFINITIONS_${OPT}}")
else()
set(__definitions "${CPU_DISPATCH_DEFINITIONS_${OPT}}")
endif()
set_source_files_properties("${fname}" PROPERTIES COMPILE_DEFINITIONS "${__definitions}")
set_source_files_properties("${fname}" PROPERTIES COMPILE_FLAGS "${CPU_DISPATCH_FLAGS_${OPT}}")
endforeach()
list(APPEND __result ${__result_${OPT}})
endif()
endif()
endforeach()
set(${SOURCES_VAR_NAME} "${__result}")
list(APPEND ${LIBS_VAR_NAME} ${__result_libs})
endmacro()
macro(ocv_compiler_optimization_fill_cpu_config)
set(OPENCV_CPU_BASELINE_DEFINITIONS_CONFIGMAKE "")
foreach(OPT ${CPU_BASELINE_FINAL})
set(OPENCV_CPU_BASELINE_DEFINITIONS_CONFIGMAKE "${OPENCV_CPU_BASELINE_DEFINITIONS_CONFIGMAKE}
#define CV_CPU_COMPILE_${OPT} 1
#define CV_CPU_BASELINE_COMPILE_${OPT} 1
")
endforeach()
set(OPENCV_CPU_BASELINE_DEFINITIONS_CONFIGMAKE "${OPENCV_CPU_BASELINE_DEFINITIONS_CONFIGMAKE}
#define CV_CPU_BASELINE_FEATURES 0 \\")
foreach(OPT ${CPU_BASELINE_FINAL})
if(NOT DEFINED CPU_${OPT}_FEATURE_ALIAS OR NOT "x${CPU_${OPT}_FEATURE_ALIAS}" STREQUAL "x")
set(OPENCV_CPU_BASELINE_DEFINITIONS_CONFIGMAKE "${OPENCV_CPU_BASELINE_DEFINITIONS_CONFIGMAKE}
, CV_CPU_${OPT} \\")
endif()
endforeach()
set(OPENCV_CPU_BASELINE_DEFINITIONS_CONFIGMAKE "${OPENCV_CPU_BASELINE_DEFINITIONS_CONFIGMAKE}\n")
set(__dispatch_modes "")
foreach(OPT ${CPU_DISPATCH_FINAL})
list(APPEND __dispatch_modes ${CPU_DISPATCH_${OPT}_FORCE} ${OPT})
endforeach()
list(REMOVE_DUPLICATES __dispatch_modes)
foreach(OPT ${__dispatch_modes})
set(OPENCV_CPU_DISPATCH_DEFINITIONS_CONFIGMAKE "${OPENCV_CPU_DISPATCH_DEFINITIONS_CONFIGMAKE}
#define CV_CPU_DISPATCH_COMPILE_${OPT} 1")
endforeach()
set(OPENCV_CPU_DISPATCH_DEFINITIONS_CONFIGMAKE "${OPENCV_CPU_DISPATCH_DEFINITIONS_CONFIGMAKE}
\n\n#define CV_CPU_DISPATCH_FEATURES 0 \\")
foreach(OPT ${__dispatch_modes})
if(NOT DEFINED CPU_${OPT}_FEATURE_ALIAS OR NOT "x${CPU_${OPT}_FEATURE_ALIAS}" STREQUAL "x")
set(OPENCV_CPU_DISPATCH_DEFINITIONS_CONFIGMAKE "${OPENCV_CPU_DISPATCH_DEFINITIONS_CONFIGMAKE}
, CV_CPU_${OPT} \\")
endif()
endforeach()
set(OPENCV_CPU_DISPATCH_DEFINITIONS_CONFIGMAKE "${OPENCV_CPU_DISPATCH_DEFINITIONS_CONFIGMAKE}\n")
set(OPENCV_CPU_CONTROL_DEFINITIONS_CONFIGMAKE "// AUTOGENERATED, DO NOT EDIT\n")
foreach(OPT ${CPU_ALL_OPTIMIZATIONS})
if(NOT DEFINED CPU_${OPT}_FEATURE_ALIAS OR NOT "x${CPU_${OPT}_FEATURE_ALIAS}" STREQUAL "x")
set(OPENCV_CPU_CONTROL_DEFINITIONS_CONFIGMAKE "${OPENCV_CPU_CONTROL_DEFINITIONS_CONFIGMAKE}
#if !defined CV_DISABLE_OPTIMIZATION && defined CV_ENABLE_INTRINSICS && defined CV_CPU_COMPILE_${OPT}
# define CV_TRY_${OPT} 1
# define CV_CPU_FORCE_${OPT} 1
# define CV_CPU_HAS_SUPPORT_${OPT} 1
# define CV_CPU_CALL_${OPT}(fn, args) return (cpu_baseline::fn args)
# define CV_CPU_CALL_${OPT}_(fn, args) return (opt_${OPT}::fn args)
#elif !defined CV_DISABLE_OPTIMIZATION && defined CV_ENABLE_INTRINSICS && defined CV_CPU_DISPATCH_COMPILE_${OPT}
# define CV_TRY_${OPT} 1
# define CV_CPU_FORCE_${OPT} 0
# define CV_CPU_HAS_SUPPORT_${OPT} (cv::checkHardwareSupport(CV_CPU_${OPT}))
# define CV_CPU_CALL_${OPT}(fn, args) if (CV_CPU_HAS_SUPPORT_${OPT}) return (opt_${OPT}::fn args)
# define CV_CPU_CALL_${OPT}_(fn, args) if (CV_CPU_HAS_SUPPORT_${OPT}) return (opt_${OPT}::fn args)
#else
# define CV_TRY_${OPT} 0
# define CV_CPU_FORCE_${OPT} 0
# define CV_CPU_HAS_SUPPORT_${OPT} 0
# define CV_CPU_CALL_${OPT}(fn, args)
# define CV_CPU_CALL_${OPT}_(fn, args)
#endif
#define __CV_CPU_DISPATCH_CHAIN_${OPT}(fn, args, mode, ...) CV_CPU_CALL_${OPT}(fn, args); __CV_EXPAND(__CV_CPU_DISPATCH_CHAIN_ ## mode(fn, args, __VA_ARGS__))
")
endif()
endforeach()
set(OPENCV_CPU_CONTROL_DEFINITIONS_CONFIGMAKE "${OPENCV_CPU_CONTROL_DEFINITIONS_CONFIGMAKE}
#define CV_CPU_CALL_BASELINE(fn, args) return (cpu_baseline::fn args)
#define __CV_CPU_DISPATCH_CHAIN_BASELINE(fn, args, mode, ...) CV_CPU_CALL_BASELINE(fn, args) /* last in sequence */
")
set(__file "${OpenCV_SOURCE_DIR}/modules/core/include/opencv2/core/cv_cpu_helper.h")
if(EXISTS "${__file}")
file(READ "${__file}" __content)
endif()
if(__content STREQUAL OPENCV_CPU_CONTROL_DEFINITIONS_CONFIGMAKE)
#message(STATUS "${__file} contains same content")
else()
file(WRITE "${__file}" "${OPENCV_CPU_CONTROL_DEFINITIONS_CONFIGMAKE}")
message(WARNING "${__file} is updated")
endif()
endmacro()
macro(__ocv_add_dispatched_file filename target_src_var src_directory dst_directory precomp_hpp optimizations_var)
if(NOT OPENCV_INITIAL_PASS)
set(__codestr "
#include \"${src_directory}/${precomp_hpp}\"
#include \"${src_directory}/${filename}.simd.hpp\"
")
set(__declarations_str "#define CV_CPU_SIMD_FILENAME \"${src_directory}/${filename}.simd.hpp\"")
set(__dispatch_modes "BASELINE")
set(__optimizations "${${optimizations_var}}")
if(CV_DISABLE_OPTIMIZATION OR NOT CV_ENABLE_INTRINSICS)
set(__optimizations "")
endif()
foreach(OPT ${__optimizations})
string(TOLOWER "${OPT}" OPT_LOWER)
set(__file "${CMAKE_CURRENT_BINARY_DIR}/${dst_directory}${filename}.${OPT_LOWER}.cpp")
if(EXISTS "${__file}")
file(READ "${__file}" __content)
else()
set(__content "")
endif()
if(__content STREQUAL __codestr)
#message(STATUS "${__file} contains up-to-date content")
else()
file(WRITE "${__file}" "${__codestr}")
endif()
if(";${CPU_DISPATCH};" MATCHES "${OPT}" OR __CPU_DISPATCH_INCLUDE_ALL)
if(EXISTS "${src_directory}/${filename}.${OPT_LOWER}.cpp")
message(STATUS "Using overrided ${OPT} source: ${src_directory}/${filename}.${OPT_LOWER}.cpp")
else()
list(APPEND ${target_src_var} "${__file}")
endif()
endif()
set(__declarations_str "${__declarations_str}
#define CV_CPU_DISPATCH_MODE ${OPT}
#include \"opencv2/core/private/cv_cpu_include_simd_declarations.hpp\"
")
set(__dispatch_modes "${OPT}, ${__dispatch_modes}")
endforeach()
set(__declarations_str "${__declarations_str}
#define CV_CPU_DISPATCH_MODES_ALL ${__dispatch_modes}
#undef CV_CPU_SIMD_FILENAME
")
set(__file "${CMAKE_CURRENT_BINARY_DIR}/${dst_directory}${filename}.simd_declarations.hpp")
if(EXISTS "${__file}")
file(READ "${__file}" __content)
endif()
if(__content STREQUAL __declarations_str)
#message(STATUS "${__file} contains up-to-date content")
else()
file(WRITE "${__file}" "${__declarations_str}")
endif()
endif()
endmacro()
macro(ocv_add_dispatched_file filename)
set(__optimizations "${ARGN}")
if(" ${ARGV1}" STREQUAL " TEST")
list(REMOVE_AT __optimizations 0)
__ocv_add_dispatched_file("${filename}" "OPENCV_MODULE_${the_module}_TEST_SOURCES_DISPATCHED" "${CMAKE_CURRENT_LIST_DIR}/test" "test/" "test_precomp.hpp" __optimizations)
else()
__ocv_add_dispatched_file("${filename}" "OPENCV_MODULE_${the_module}_SOURCES_DISPATCHED" "${CMAKE_CURRENT_LIST_DIR}/src" "" "precomp.hpp" __optimizations)
endif()
endmacro()
# Workaround to support code which always require all code paths
macro(ocv_add_dispatched_file_force_all)
set(__CPU_DISPATCH_INCLUDE_ALL 1)
ocv_add_dispatched_file(${ARGN})
unset(__CPU_DISPATCH_INCLUDE_ALL)
endmacro()
if(CV_DISABLE_OPTIMIZATION OR CV_ICC)
ocv_update(CV_ENABLE_UNROLLED 0)
else()
ocv_update(CV_ENABLE_UNROLLED 1)
endif()