[llvm-branch-commits] [llvm] [LoopInterchange] Disable LoopCacheAnalysis-based heuristic by default (PR #193478)

[Ryotaro Kasuga via llvm-branch-commits]

kasuga-fj wrote:

Thanks for the feedback. It's fair to say that my statements were sloppy and lacked supporting evidence. I still believe that there are several non-trivial issues in LoopCacheAnalysis, and that addressing them should be part of step 2 after default enablement (i.e., incremental development, as mentioned several times in [Developer Policy](https://llvm.org/docs/DeveloperPolicy.html)). However, this view is based on my "past" experience, and the situation may well have changed since then. Let me take some time to summarize the issues and provide performance numbers. (It's possible that my perspective will change during the investigation...)

https://github.com/llvm/llvm-project/pull/193478