[PATCH] D99205: Add jump-threading optimization for deterministic finite automata

[Sjoerd Meijer via Phabricator via llvm-commits]

SjoerdMeijer added a comment.

Just a heads up. I have benchmarked this version against our downstream implementation of jump threading and see some regressions:

         Regression
  core1  0.4%
  core2  0.28%
  core3  2.7%
  core4  0.24%
  core5  1.12%

Especially for the more capable cores "core3" and "core5" the difference is quite big, so we do leave some performance on the table.

I will probably add a reproducer as a regression test and raise a ticket for this, so that we can look into this.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D99205/new/

https://reviews.llvm.org/D99205