Izaron added a comment. We can use this file as an example: `ConstProfiler.cpp` https://reviews.llvm.org/P8296 The code does a really big constant evaluation.
This is the generated json **before** the patch: `before.json` https://reviews.llvm.org/P8294 Giving this json to https://www.speedscope.app/, we get a big empty gap where the constant evaluation is being done. link to screenshot <https://user-images.githubusercontent.com/5406399/195999887-64ea75c0-b995-476d-be85-f65c95600132.png> This is the generated json **after** the patch: `after.json` https://reviews.llvm.org/P8295 The empty gap is filled with four events. link to screenshot <https://user-images.githubusercontent.com/5406399/195999990-130731f6-39fa-41fa-92c3-fef297df9e24.png> You can use this command for generating the json: clang++ ConstProfiler.cpp -std=c++20 -c -ftime-trace -ftime-trace-granularity=50 P.S. I'm not sure how to write tests to cover the patch, but I'll find this out =) Repository: rG LLVM Github Monorepo CHANGES SINCE LAST ACTION https://reviews.llvm.org/D136022/new/ https://reviews.llvm.org/D136022 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
