[PATCH] D110613: [Taildup] Don't tail-duplicate loop header with multiple successors as its latches

Mon Nov 1 00:10:39 PDT 2021

junparser added a comment.

In D110613#3099467 <https://reviews.llvm.org/D110613#3099467>, @lkail wrote:

>> Do we have any benchmark on python,  I think I can have a perf test with them before land this.
>
> We don't have it in test-suite yet. In test-suite, we have `SingleSource/Benchmarks/Misc/evalloop.c` and `MultiSource/Benchmarks/TSVC` for computed-goto.

I've tested python under pyperformance with USE_COMPUTED_GOTOS disabled, It shows no performance difference.  So, let's keep 128 as default value for now.

Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D110613/new/

https://reviews.llvm.org/D110613