[PATCH] D159050: [PowerPC] set min jump table entries to 64

Eli Friedman via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Mon Aug 28 22:14:50 PDT 2023


efriedma added a comment.

I don't have access to any relevant PPC hardware to benchmark, but 64 seems excessively high.  I mean, I can imagine it benefiting certain micro-benchmarks if it helps branch prediction in some hot code.  But it's high enough that it likely also hurts other benchmarks, and maybe increases codesize.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D159050/new/

https://reviews.llvm.org/D159050



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