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opencv/cmake/OpenCVCompilerOptimizations.cmake
Maksim Shabunin 4c81e174bf
Merge pull request #25901 from mshabunin:fix-riscv-aarch-baseline 
RISC-V/AArch64: disable CPU features detection #25901

This PR is the first step in fixing current issues with NEON/RVV, FP16, BF16 and other CPU features on AArch64 and RISC-V platforms.

On AArch64 and RISC-V platforms we usually have the platform set by default in the toolchain when we compile it or in the cmake toolchain file or in CMAKE_CXX_FLAGS by user. Then, there are two ways to set platform options: a) "-mcpu=<some_cpu>" ; b) "-march=<arch description>" (e.g. "rv64gcv"). Furthermore, there are no similar "levels" of optimizations as for x86_64, instead we have features (RVV, FP16,...) which can be enabled or disabled. So, for example, if a user has "rv64gc" set by the toolchain and we want to enable RVV. Then we need to somehow parse their current feature set and append "v" (vector optimizations) to this string. This task is quite hard and the whole procedure is prone to errors.

I propose to use "CPU_BASELINE=DETECT" by default on AArch64 and RISC-V platforms. And somehow remove other features or make them read-only/detect-only, so that OpenCV wouldn't add any extra "-march" flags to the default configuration. We would rely only on the flags provided by the compiler and cmake toolchain file. We can have some predefined configurations in our cmake toolchain files.

Changes made by this PR:
- `CMakeLists.txt`: 
  - use `CMAKE_CROSSCOMPILING` instead of `CMAKE_TOOLCHAIN_FILE` to detect cross-compilation. This might be useful in cases of native compilation with a toolchain file
  - removed obsolete variables `ENABLE_NEON` and `ENABLE_VFPV3`, the first one have been turned ON by default on AArch64 platform which caused setting `CPU_BASELINE=NEON`
  - raise minimum cmake version allowed to 3.7 to allow using `CMAKE_CXX_FLAGS_INIT` in toolchain files
- added separate files with arch flags for native compilation on AArch64 and RISC-V, these files will be used in our toolchain files and in regular cmake
- use `DETECT` as default value for `CPU_BASELINE` also allow `NATIVE`, warn user if other values were used (only for AArch64 and RISC-V)
- for each feature listed in `CPU_DISPATCH` check if corresponding `CPU_${opt}_FLAGS_ON` has been provided, warn user if it is empty (only for AArch64 and RISC-V)
- use `CPU_BASELINE_DISABLE` variable to actually turn off macros responsible for corresponding features even if they are enabled by compiler
- removed Aarch64 feature merge procedure (it didn't support `-mcpu` and built-in `-march`)
- reworked AArch64 and two RISC-V cmake toolchain files (does not affect Android/OSX/iOS/Win):
  - use `CMAKE_CXX_FLAGS_INIT` to set compiler flags
  - use variables `ENABLE_BF16`, `ENABLE_DOTPROD`, `ENABLE_RVV`, `ENABLE_FP16` to control `-march`
  - AArch64: removed other compiler and linker flags
    - `-fdata-sections`, `-fsigned-char`, `-Wl,--no-undefined`, `-Wl,--gc-sections`   - already set by OpenCV
    - `-Wa,--noexecstack`, `-Wl,-z,noexecstack`, `-Wl,-z,relro`, `-Wl,-z,now` - can be enabled by OpenCV via `ENABLE_HARDENING`
    - `-Wno-psabi` - this option used to disable some warnings on older ARM platforms, shouldn't harm
  - ARM: removed same common flags as for AArch64, but left `-mthumb` and `--fix-cortex-a8`, `-z nocopyreloc`
2024-09-12 18:07:24 +03:00

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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
#
# AVX512 details: https://en.wikipedia.org/wiki/AVX-512#CPUs_with_AVX-512
#
# CPU features groups:
# AVX512_COMMON (Common instructions AVX-512F/CD for all CPUs that support AVX-512)
# AVX512_KNL (Knights Landing with AVX-512F/CD/ER/PF)
# AVX512_KNM (Knights Mill with AVX-512F/CD/ER/PF/4FMAPS/4VNNIW/VPOPCNTDQ)
# AVX512_SKX (Skylake-X with AVX-512F/CD/BW/DQ/VL)
# AVX512_CNL (Cannon Lake with AVX-512F/CD/BW/DQ/VL/IFMA/VBMI)
# AVX512_CLX (Cascade Lake with AVX-512F/CD/BW/DQ/VL/VNNI)
# AVX512_ICL (Ice Lake with AVX-512F/CD/BW/DQ/VL/IFMA/VBMI/VNNI/VBMI2/BITALG/VPOPCNTDQ/VPCLMULQDQ*/GFNI*/VAES*)
# ppc64le arch:
# VSX (always available on Power8)
# VSX3 (always available on Power9)
# RISC-V arch:
# RVV
# 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")
list(APPEND CPU_ALL_OPTIMIZATIONS "AVX512_COMMON;AVX512_KNL;AVX512_KNM;AVX512_SKX;AVX512_CNL;AVX512_CLX;AVX512_ICL")
list(APPEND CPU_ALL_OPTIMIZATIONS NEON VFPV3 FP16 NEON_DOTPROD NEON_FP16 NEON_BF16)
list(APPEND CPU_ALL_OPTIMIZATIONS MSA)
list(APPEND CPU_ALL_OPTIMIZATIONS VSX VSX3)
list(APPEND CPU_ALL_OPTIMIZATIONS RVV)
list(APPEND CPU_ALL_OPTIMIZATIONS LSX)
list(APPEND CPU_ALL_OPTIMIZATIONS LASX)
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 ON)
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()
# For platforms which don't allow enabling of extra instruction sets with separate compiler options.
# E.g. GCC/Clang for RISC-V/AArch64 use suffixes for -march option. So we should avoid using existing
# CPU features mechanisms and rely on cmake-toolchain files or flags provided via command-line.
macro(ocv_default_baseline_detect_and_check_dispatch)
set(CPU_BASELINE "DETECT" CACHE STRING "${HELP_CPU_BASELINE}")
if(NOT CPU_BASELINE MATCHES "^(DETECT|NATIVE|)$")
message(WARNING "CPU_BASELINE is set to '${CPU_BASELINE}', but '${CMAKE_SYSTEM_PROCESSOR}' "
"platform is designed to work with DETECT|NATIVE|<empty>, "
"otherwise target CPU architecture may be changed unexpectedly. "
"Please check your resulting compiler flags in the CMake output.")
endif()
foreach(opt ${CPU_DISPATCH})
if(NOT DEFINED CPU_${opt}_FLAGS_ON)
message(WARNING "${opt} is in the CPU_DISPATCH list, but 'CPU_${opt}_FLAGS_ON' is not set. "
"Please provide feature-specific compiler options explicitly.")
endif()
endforeach()
endmacro()
#===================================================================================================
if(X86 OR X86_64)
ocv_update(CPU_KNOWN_OPTIMIZATIONS "SSE;SSE2;SSE3;SSSE3;SSE4_1;POPCNT;SSE4_2;AVX;FP16;AVX2;FMA3;AVX_512F;AVX512_COMMON;AVX512_KNL;AVX512_KNM;AVX512_SKX;AVX512_CNL;AVX512_CLX;AVX512_ICL")
ocv_update(CPU_AVX512_COMMON_GROUP "AVX_512F;AVX_512CD")
ocv_update(CPU_AVX512_KNL_GROUP "AVX512_COMMON;AVX512_KNL_EXTRA")
ocv_update(CPU_AVX512_KNM_GROUP "AVX512_KNL;AVX512_KNM_EXTRA;AVX_512VPOPCNTDQ")
ocv_update(CPU_AVX512_SKX_GROUP "AVX512_COMMON;AVX_512VL;AVX_512BW;AVX_512DQ")
ocv_update(CPU_AVX512_CNL_GROUP "AVX512_SKX;AVX_512IFMA;AVX_512VBMI")
ocv_update(CPU_AVX512_CLX_GROUP "AVX512_SKX;AVX_512VNNI")
ocv_update(CPU_AVX512_ICL_GROUP "AVX512_SKX;AVX_512IFMA;AVX_512VBMI;AVX_512VNNI;AVX_512VBMI2;AVX_512BITALG;AVX_512VPOPCNTDQ") # ? VPCLMULQDQ, GFNI, VAES
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 "${OpenCV_SOURCE_DIR}/cmake/checks/cpu_avx512.cpp")
ocv_update(CPU_AVX512_COMMON_TEST_FILE "${OpenCV_SOURCE_DIR}/cmake/checks/cpu_avx512common.cpp")
ocv_update(CPU_AVX512_KNL_TEST_FILE "${OpenCV_SOURCE_DIR}/cmake/checks/cpu_avx512knl.cpp")
ocv_update(CPU_AVX512_KNM_TEST_FILE "${OpenCV_SOURCE_DIR}/cmake/checks/cpu_avx512knm.cpp")
ocv_update(CPU_AVX512_SKX_TEST_FILE "${OpenCV_SOURCE_DIR}/cmake/checks/cpu_avx512skx.cpp")
ocv_update(CPU_AVX512_CNL_TEST_FILE "${OpenCV_SOURCE_DIR}/cmake/checks/cpu_avx512cnl.cpp")
ocv_update(CPU_AVX512_CLX_TEST_FILE "${OpenCV_SOURCE_DIR}/cmake/checks/cpu_avx512clx.cpp")
ocv_update(CPU_AVX512_ICL_TEST_FILE "${OpenCV_SOURCE_DIR}/cmake/checks/cpu_avx512icl.cpp")
if(NOT OPENCV_CPU_OPT_IMPLIES_IGNORE)
ocv_update(CPU_AVX512_ICL_IMPLIES "AVX512_SKX")
ocv_update(CPU_AVX512_CLX_IMPLIES "AVX512_SKX")
ocv_update(CPU_AVX512_CNL_IMPLIES "AVX512_SKX")
ocv_update(CPU_AVX512_SKX_IMPLIES "AVX512_COMMON")
ocv_update(CPU_AVX512_KNM_IMPLIES "AVX512_KNL")
ocv_update(CPU_AVX512_KNL_IMPLIES "AVX512_COMMON")
ocv_update(CPU_AVX512_COMMON_IMPLIES "AVX_512F")
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 OR CV_ICX)
macro(ocv_intel_compiler_optimization_option name unix_flags msvc_flags)
ocv_update(CPU_${name}_FLAGS_NAME "${name}")
if(MSVC)
set(enable_flags "${msvc_flags}")
set(flags_conflict "/arch:[^ ]*|/Qx:[^ ]+")
else()
set(enable_flags "${unix_flags}")
set(flags_conflict "-msse[^ ]*|-mssse3|-mavx[^ ]*|-march[^ ]*|-x[^ ]+")
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 "-mpopcnt" "") # -mpopcnt is available since ICC 19.0.0
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 "-xCOMMON-AVX512" "/Qx:COMMON-AVX512")
ocv_intel_compiler_optimization_option(AVX512_COMMON "-xCOMMON-AVX512" "/Qx:COMMON-AVX512")
ocv_intel_compiler_optimization_option(AVX512_KNL "-xKNL" "/Qx:KNL")
ocv_intel_compiler_optimization_option(AVX512_KNM "-xKNM" "/Qx:KNM")
ocv_intel_compiler_optimization_option(AVX512_SKX "-xSKYLAKE-AVX512" "/Qx:SKYLAKE-AVX512")
ocv_intel_compiler_optimization_option(AVX512_CNL "-xCANNONLAKE" "/Qx:CANNONLAKE")
ocv_intel_compiler_optimization_option(AVX512_CLX "-xCASCADELAKE" "/Qx:CASCADELAKE")
ocv_intel_compiler_optimization_option(AVX512_ICL "-xICELAKE-CLIENT" "/Qx:ICELAKE-CLIENT")
elseif(CV_GCC OR CV_CLANG OR CV_ICX)
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
ocv_update(CPU_AVX_512F_FLAGS_ON "-mavx512f")
ocv_update(CPU_AVX_512CD_FLAGS_ON "-mavx512cd")
ocv_update(CPU_AVX512_KNL_EXTRA_FLAGS_ON "-mavx512er -mavx512pf")
ocv_update(CPU_AVX512_KNM_EXTRA_FLAGS_ON "-mavx5124fmaps -mavx5124vnniw")
ocv_update(CPU_AVX_512BW_FLAGS_ON "-mavx512bw")
ocv_update(CPU_AVX_512DQ_FLAGS_ON "-mavx512dq")
ocv_update(CPU_AVX_512VL_FLAGS_ON "-mavx512vl")
ocv_update(CPU_AVX_512IFMA_FLAGS_ON "-mavx512ifma")
ocv_update(CPU_AVX_512VBMI_FLAGS_ON "-mavx512vbmi")
ocv_update(CPU_AVX_512VNNI_FLAGS_ON "-mavx512vnni")
ocv_update(CPU_AVX_512VBMI2_FLAGS_ON "-mavx512vbmi2")
ocv_update(CPU_AVX_512BITALG_FLAGS_ON "-mavx512bitalg")
ocv_update(CPU_AVX_512VPOPCNTDQ_FLAGS_ON "-mavx512vpopcntdq")
else()
ocv_update(CPU_AVX_512F_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 X86_64)
# 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)
ocv_update(CPU_AVX_512F_FLAGS_ON "/arch:AVX512")
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 "${OpenCV_SOURCE_DIR}/cmake/checks/cpu_fp16.cpp")
ocv_update(CPU_NEON_FP16_TEST_FILE "${OpenCV_SOURCE_DIR}/cmake/checks/cpu_neon_fp16.cpp")
ocv_update(CPU_NEON_BF16_TEST_FILE "${OpenCV_SOURCE_DIR}/cmake/checks/cpu_neon_bf16.cpp")
ocv_update(CPU_NEON_DOTPROD_TEST_FILE "${OpenCV_SOURCE_DIR}/cmake/checks/cpu_neon_dotprod.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 -mfp16-format=ieee")
ocv_update(CPU_FP16_FLAGS_CONFLICT "-mfpu=[^ ]*")
endif()
ocv_update(CPU_FP16_IMPLIES "NEON")
else()
ocv_update(CPU_KNOWN_OPTIMIZATIONS "NEON;FP16;NEON_DOTPROD;NEON_FP16;NEON_BF16")
ocv_update(CPU_FP16_IMPLIES "NEON")
ocv_update(CPU_NEON_DOTPROD_IMPLIES "NEON")
ocv_update(CPU_NEON_FP16_IMPLIES "NEON")
ocv_update(CPU_NEON_BF16_IMPLIES "NEON")
if(MSVC)
ocv_update(CPU_NEON_DOTPROD_FLAGS_ON "")
ocv_update(CPU_NEON_FP16_FLAGS_ON "")
ocv_update(CPU_NEON_BF16_FLAGS_ON "")
else()
ocv_update(CPU_NEON_DOTPROD_FLAGS_ON "-march=armv8.2-a+dotprod")
ocv_update(CPU_NEON_FP16_FLAGS_ON "-march=armv8.2-a+fp16")
ocv_update(CPU_NEON_BF16_FLAGS_ON "-march=armv8.2-a+bf16")
endif()
set(CPU_DISPATCH "NEON_FP16;NEON_BF16;NEON_DOTPROD" CACHE STRING "${HELP_CPU_DISPATCH}")
ocv_default_baseline_detect_and_check_dispatch()
endif()
elseif(MIPS)
ocv_update(CPU_MSA_TEST_FILE "${OpenCV_SOURCE_DIR}/cmake/checks/cpu_msa.cpp")
ocv_update(CPU_KNOWN_OPTIMIZATIONS "MSA")
ocv_update(CPU_MSA_FLAGS_ON "-mmsa")
set(CPU_BASELINE "DETECT" CACHE STRING "${HELP_CPU_BASELINE}")
elseif(PPC64LE)
ocv_update(CPU_KNOWN_OPTIMIZATIONS "VSX;VSX3")
ocv_update(CPU_VSX_TEST_FILE "${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 "${HELP_CPU_BASELINE}")
elseif(RISCV)
ocv_update(CPU_KNOWN_OPTIMIZATIONS "RVV")
ocv_update(CPU_RVV_TEST_FILE "${OpenCV_SOURCE_DIR}/cmake/checks/cpu_rvv.cpp")
ocv_default_baseline_detect_and_check_dispatch()
elseif(LOONGARCH64)
ocv_update(CPU_LSX_TEST_FILE "${OpenCV_SOURCE_DIR}/cmake/checks/cpu_lsx.cpp")
ocv_update(CPU_LASX_TEST_FILE "${OpenCV_SOURCE_DIR}/cmake/checks/cpu_lasx.cpp")
ocv_update(CPU_KNOWN_OPTIMIZATIONS "LSX;LASX")
ocv_update(CPU_LSX_FLAGS_ON "-mlsx")
ocv_update(CPU_LASX_FLAGS_ON "-mlasx")
set(CPU_BASELINE "LSX" CACHE STRING "${HELP_CPU_BASELINE}")
set(CPU_DISPATCH "LASX" CACHE STRING "${HELP_CPU_DISPATCH}")
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()
if("x${CPU_DISPATCH}" STREQUAL "xALL")
set(CPU_DISPATCH "${CPU_KNOWN_OPTIMIZATIONS}")
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(NOT __is_disabled AND (__is_from_baseline OR 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_${OPT}_IMPLIES}")
endif()
#message("${OPT}: CPU_${OPT}_FLAGS_ON=${CPU_${OPT}_FLAGS_ON}")
endforeach()
if(_add_native_flag)
set(_varname "HAVE_CPU_NATIVE_SUPPORT")
ocv_check_compiler_flag(CXX "-march=native" "${_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 ${OPT})
elseif(__is_from_baseline AND NOT __is_disabled)
if(NOT ";${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 "${__dispatch_opts_force}")
endforeach()
if(ENABLE_POWERPC)
add_extra_compiler_option("-mcpu=G3 -mtune=G5")
endif()
endmacro()
macro(ocv_compiler_optimization_options_finalize)
if((CV_GCC OR CV_CLANG OR CV_ICX) AND (X86 OR X86_64))
if(NOT APPLE AND CMAKE_SIZEOF_VOID_P EQUAL 4)
if(OPENCV_EXTRA_CXX_FLAGS MATCHES "-m(sse2|avx)")
add_extra_compiler_option(-mfpmath=sse) # !! important - be on the same wave with x64 compilers
else()
add_extra_compiler_option(-mfpmath=387)
endif()
endif()
endif()
if(MSVC)
# Generate Intrinsic Functions
set(OPENCV_EXTRA_FLAGS "${OPENCV_EXTRA_FLAGS} /Oi")
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_${OPT} "${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_BASELINE_FINAL} ${CPU_DISPATCH_FINAL})
if(__result_${OPT})
#message("${OPT}: ${__result_${OPT}}")
if(CMAKE_GENERATOR MATCHES "^Visual"
OR OPENCV_CMAKE_CPU_OPTIMIZATIONS_FORCE_TARGETS
)
# MSVS generator is not able to properly order compilation flags:
# 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_FINAL};" MATCHES "${OPT}" OR __CPU_DISPATCH_INCLUDE_ALL)
if(EXISTS "${src_directory}/${filename}.${OPT_LOWER}.cpp")
message(STATUS "Using overridden ${OPT} source: ${src_directory}/${filename}.${OPT_LOWER}.cpp")
else()
list(APPEND ${target_src_var} "${__file}")
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}, ${__dispatch_modes}")
endif()
endforeach()
set(__declarations_str "${__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 OR CX_ICX)
ocv_update(CV_ENABLE_UNROLLED 0)
else()
ocv_update(CV_ENABLE_UNROLLED 1)
endif()
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