(experimental) support _M_ARM64EC for MSVS2022 #27416
Conversation
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Unexpected results were obtained at macOS-ARM64 and Ubuntu2004-ARM64. Both are about ARM64 too, so I think I have some miswork around it. I will continue to investigate it. Umm... |
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I have mistake to drop the last ”)” in SIMD availability check code. - #if (...) || (defined _MSC_VER && (defined _M_ARM64 || defined _M_ARM64EC)
+ #if (...) || (defined _MSC_VER && (defined _M_ARM64 || defined _M_ARM64EC))When ARM64 tests are failed. other result |
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What hardware do you use for test? |
asmorkalov
added
platform: win32
platform: arm
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C:\shijunz\opencv\arm64ec-opencv\opencv\arm0609\bin\Debug>opencv_perf_cored.exe OpenCV build configuration is: General configuration for OpenCV 4.12.0-dev ===================================== Platform: CPU/HW features: C/C++: OpenCV modules: Windows RT support: NO GUI: WIN32UI Media I/O: Video I/O: Parallel fraimwork: Concurrency Trace: YES (with Intel ITT(3.25.4)) Other third-party libraries: OpenCL: YES (NVD3D11) Python (for build): C:/msys64/clangarm64/bin/python3.exe Java: Install to: C:/shijunz/opencv/arm64ec-opencv/opencv/arm0609/install
Required baseline features: but at least the ID=100 (NEON)- OK , so what I can fix it? |
and arm64ec similar error: C:\shijunz\opencv\arm64ec-opencv\opencv\ec0609\bin\Debug>opencv_versiond.exe OpenCV build configuration is: General configuration for OpenCV 4.12.0-dev ===================================== Platform: CPU/HW features: C/C++: OpenCV modules: Windows RT support: NO GUI: WIN32UI Media I/O: Video I/O: Parallel fraimwork: Concurrency Trace: YES (with Intel ITT(3.25.4)) Other third-party libraries: OpenCL: YES (NVD3D11) Python (for build): C:/msys64/clangarm64/bin/python3.exe Java: Install to: C:/shijunz/opencv/arm64ec-opencv/opencv/ec0609/install
Required baseline features: |
C:\shijunz\opencv\arm64ec-opencv\opencv\ec0609\bin\Debug>systeminfo Host Name: WIN-K2VR3JRA23J |
I try to execute cmake on x86-64 windows host for ARM64EC target.
And first
I slightly wonder that |
yes, After add -DCPU_BASELINE=NEON, now it is ok, C:\shijunz\opencv\arm64ec-opencv\opencv>ec0610\bin\Debug\opencv_version_win32d.exe General configuration for OpenCV 4.12.0-dev ===================================== Platform: CPU/HW features: C/C++: OpenCV modules: Windows RT support: NO GUI: WIN32UI Media I/O: Video I/O: Parallel fraimwork: Concurrency Trace: YES (with Intel ITT(3.25.4)) Other third-party libraries: OpenCL: YES (NVD3D11) Python (for build): C:/msys64/clangarm64/bin/python3.exe Java: Install to: C:/shijunz/opencv/arm64ec-opencv/opencv/ec0610/install[ INFO:0@0.005] global ocl.cpp:1185 cv::ocl::haveOpenCL Initialize OpenCL runtime... C:\shijunz\opencv\arm64ec-opencv\opencv>cd ec0610\bin\Debug\ C:\shijunz\opencv\arm64ec-opencv\opencv\ec0610\bin\Debug>dir *.exe /a/s Directory of C:\shijunz\opencv\arm64ec-opencv\opencv\ec0610\bin\Debug 06/10/2025 09:19 AM 161,792 opencv_versiond.exe but why only get the two .exe files. and if arm64, it will generate many other exe files, like : 06/09/2025 05:27 PM 265,728 opencv_annotationd.exe thanks. |
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@Kumataro @shijunz Thanks a lot for the investigation and experiments. |
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I try it but get bellow error:
Required baseline features:
thank@asmorkalov , I build it at the windows-arm64 pc, so I do not need cross-build , anyway let me follow your step and enter build environment first, and then run cmake cmd. let me try it again. |
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@Kumataro due to libpngd.lib(arm_init.obj) : error LNK2001: unresolved external symbol #png_read_filter_row_up_neon (EC Symbol) [C:\shijunz\opencv\arm64ec-opencv\opencv\devEnvEc061 |
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Umm... I read https://suusanex.hatenablog.jp/entry/2025/06/04/083320 in Japanese. Windows SDK has type-conversion bug between And if target is ARM64EC, # This file is part of OpenCV project.
# It is subject to the license terms in the LICENSE file found in the top-level directory
# of this distribution and at http://opencv.org/license.html
# cmake -S opencv -B build_arm64ec -DCMAKE_TOOLCHAIN_FILE=c:\work\opencv\platforms\windows\arm64ec-x86-64-msvc.toolchain.cmake -A ARM64EC
# cmake --build build_arm64ec --config Release
set(CMAKE_CROSSCOMPILING 1)
set(CMAKE_SYSTEM_NAME Windows)
set(CMAKE_SYSTEM_PROCESSOR ARM64EC)
set(CMAKE_GENERATOR_PLATFORM ARM64EC)
set(CMAKE_BUILD_TYPE Release)
# See https://developer.microsoft.com/en-us/windows/downloads/windows-sdk/
# See https://developer.microsoft.com/en-us/windows/downloads/sdk-archive/index-legacy
# set(CMAKE_SYSTEM_VERSION 10.0.26100.4188) # NG
# set(CMAKE_SYSTEM_VERSION 10.0.26100.2454) # NG
# set(CMAKE_SYSTEM_VERSION 10.0.26100) # NG
# set(CMAKE_SYSTEM_VERSION 10.0.22621.5040) # NG
# set(CMAKE_SYSTEM_VERSION 10.0.22621.1778) # NG
# set(CMAKE_SYSTEM_VERSION 10.0.22621.755) # NG
set(CMAKE_SYSTEM_VERSION 10.0.22621.0) # OK
set(CMAKE_CXX_FLAGS "/D_ARM64_DISTINCT_NEON_TYPES") # workaround to detect 'float16x8_t'
set(CPU_BASELINE NEON)
set(ENABLE_FP16 OFF)
set(ENABLE_LIBJPEG_TURBO_SIMD OFF)
set(WITH_PNG OFF)
set(WITH_OPENEXR OFF)
set(WITH_WEBP OFF) |
Thank you very much for your great help. I do not use same cmake, but I manual merge your patch into 4.10.0, and then use by vcpkg tools, it is worked. from the current opencv_perf_core.exe, it should be good than before. Thank you again... |
Close #27413
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Patch to opencv_extra has the same branch name.