[all-commits] [llvm/llvm-project] aca355: [InstCombine] Extend fold (icmp sgt smin(PosA, B) ...

Simon Pilgrim via All-commits all-commits at lists.llvm.org
Thu Feb 10 05:28:40 PST 2022

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: aca355a3bb9917b7e47cf7dc04ad7a96dfa0d43d
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2022-02-10 (Thu, 10 Feb 2022)

  Changed paths:
    M llvm/lib/Transforms/InstCombine/InstCombineCompares.cpp
    M llvm/test/Transforms/InstCombine/min-positive.ll

  Log Message:
  [InstCombine] Extend fold (icmp sgt smin(PosA, B) 0) -> (icmp sgt B 0) to support smin intrinsic

Replace matchSelectPattern pattern match with the more general m_SMin so that it can handle smin intrinsics as well as the icmp+select pattern

Noticed while reviewing regressions from D98152

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