[ET-VK] Fix caching mechanism to account for included files#12441
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## Changes * Update the `gen_vulkan_spv.py` script to account for changes to included files when decided whether to perform a re-compilation ## Additional Changes Also applied some misc fixes: * Allow the Python preprocessor to handle unescaped `\` used to extend macros to multiple lines. Fixed this by replacing these with `\` before running the preprocessor. * Fixed an issue where build would unexpectedly pass when trying to recompile a failing build multiple time. This would cause the caching mechanism to use a old cached build artifact since no changes were detected. Fixed this by removing any existing cached artifacts on unsuccessful build. ## Context The `gen_vulkan_spv.py` script which handles GLSL shader codegen and GLSL -> SPIR-V compilation for the ExecuTorch Vulkan backend has a caching mechanism to only recompile modified files for the purpose of developer efficiency. However, this mechanism currently doesn't consider whether included files have been changed. Therefore, if a include file is modified without first modifying the source file which uses it, the changes to the include file will not be captured. Differential Revision: [D78275585](https://our.internmc.facebook.com/intern/diff/D78275585/) [ghstack-poisoned]
🔗 Helpful Links🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/12441
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| def preprocess( | ||
| input_text: str, variables: Dict[str, Any], input_path: str = "codegen" | ||
| ) -> str: | ||
| # Workaround to handle source files using \ to extend mecros to a new line |
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| # Workaround to handle source files using \ to extend mecros to a new line | |
| # Workaround to handle source files using \ to extend macros to a new line |
| src_files_list = glob.glob( | ||
| os.path.join(src_path, "**", "*.glsl*"), recursive=True | ||
| ) | ||
| os.path.join(src_path, "**", "*.[gh]lsl*"), recursive=True |
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Update the comment to include hlsl. Not sure if you intended to put this change in this PR.
| cache_dir, os.path.basename(src_file_fullpath) + ".t" | ||
| ) | ||
| shutil.copyfile(src_file_fullpath, cached_src_file) | ||
| print(spv_to_glsl_map) |
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| print(spv_to_glsl_map) |
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Stack from ghstack (oldest at bottom):
run_prepack()toprepack()and replaceencode_prepack()+prepack()with justprepack()#12443Changes
gen_vulkan_spv.pyscript to account for changes to included files when decided whether to perform a re-compilationAdditional Changes
Also applied some misc fixes:
\used to extend macros to multiple lines. Fixed this by replacing these with\before running the preprocessor.Context
The
gen_vulkan_spv.pyscript which handles GLSL shader codegen and GLSL -> SPIR-V compilation for the ExecuTorch Vulkan backend has a caching mechanism to only recompile modified files for the purpose of developer efficiency. However, this mechanism currently doesn't consider whether included files have been changed. Therefore, if a include file is modified without first modifying the source file which uses it, the changes to the include file will not be captured.Differential Revision: D78275585