[PATCH] D120219: [X86] Canonicalize SGT/UGT compares with constants for JCC to use SGE/UGE to reduce the number of EFLAGs reads.

Craig Topper via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Sun Feb 20 13:36:46 PST 2022

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craig.topper added a comment.

What CPUs require extra uops for Jcc? Last I knew Intel Core CPUs didn’t. Not sure about Atom or AMD.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D120219/new/

https://reviews.llvm.org/D120219

Previous message: [PATCH] D120219: [X86] Canonicalize SGT/UGT compares with constants for JCC to use SGE/UGE to reduce the number of EFLAGs reads.
Next message: [PATCH] D115953: [VPlan] Introduce recipe to build scalar steps.
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