Support build on native Windows x64

[chinazhangchao]

Summary

This PR is the first one of a series of PRs split from #6979 to support for out-of-the-box builds on Windows x64.

1. (this one) make ./install_requirements.bat build and install executorch python package successfully, without xnnpack
2. make ./install_requirements.bat --pybind xnnpack work
3. Support examples/models/llama/

Test plan

PR tested by running minimal executor_runner example (https://pytorch.org/executorch/stable/getting-started-setup.html#run-your-program) in the following environment:

• Windows 11 x64
• Visual Studio Enterprise 2022 with these components installed:
  • C++ Clang tools for Windows
  • MSBuild support for LLVM (clang-cl) toolset
  • C++ CMake tools for Windows

Steps:

# run the following in command prompt
git clone -b win_build_basic https://github.com/vortex-captain/executorch.git
cd executorch/  # contains code of this PR
git submodule sync
git submodule update --init

./install_requirements.bat
python .\export_add.py  # export_add.py from https://pytorch.org/executorch/stable/getting-started-setup.html#export-a-program
msbuild pip-out\temp.win-amd64-cpython-310\cmake-out\executorch.sln /t:Rebuild
pip-out\temp.win-amd64-cpython-310\cmake-out\Debug\executor_runner.exe --model-path add.pte

References

#6979
#4681
#5252
#4899
#5164
#4993

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/7217

• 📄 Preview Python docs built from this PR

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[chinazhangchao]

@malfet @tarun292 @mcr229 @dbort @digantdesai Please help to review this PR which is split from #6979

[vortex-captain]

@pytorchbot label "release notes: build"

[dbort]

Thank you for this PR! I'll take a look in the next couple of days. @tarun292 please also take a look; I'm not sure if we can assume that all windows users will be able to use clang-cl.

[vortex-captain]

Thank you for this PR! I'll take a look in the next couple of days. @tarun292 please also take a look; I'm not sure if we can assume that all windows users will be able to use clang-cl.

Thanks for your attention! Windows users can install clang-cl via winget like winget install --id llvm.llvm. Could we assume clang-cl is available to all users based on this?

[ykhrustalev]

Thank you for this PR! I'll take a look in the next couple of days. @tarun292 please also take a look; I'm not sure if we can assume that all windows users will be able to use clang-cl.

@dbort executorch codebase heavily uses compile flags that MSVS does not support , clang-cl is much easier to make working

[mtavenrath]

clang is part of the Visual Studio installer package. Installing it nothing mere that a single click in the visual studio installer. The cmdline option using winget is simple as well. As long as the build system notifies the user that clang is required I wouldn't consider clang only as blocker for this CL. If MSVC support is really required it still can be added in the long term.

[SS-JIA]

Closing this PR now, as the changes contained in this PR are now merged as a part of the recent Windows support effort i.e. #9198