[all-commits] [llvm/llvm-project] dee28f: [InstCombine] Rotate transformation port from Sele...

[Axel Sorenson via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: dee28f955583c5baa69ece5bf499a447cf3c6d29
      https://github.com/llvm/llvm-project/commit/dee28f955583c5baa69ece5bf499a447cf3c6d29
  Author: Axel Sorenson <AxelPSorenson at gmail.com>
  Date:   2025-09-26 (Fri, 26 Sep 2025)

  Changed paths:
    M llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp
    M llvm/test/Transforms/InstCombine/fsh.ll

  Log Message:
  -----------
  [InstCombine] Rotate transformation port from SelectionDAG to InstCombine (#160628)

The rotate transformation from
https://github.com/llvm/llvm-project/blob/72c04bb882ad70230bce309c3013d9cc2c99e9a7/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp#L10312-L10337
has no middle-end equivalent in InstCombine. The following is a port of
that transformation to InstCombine.

---------

Co-authored-by: Yingwei Zheng <dtcxzyw at qq.com>



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