[all-commits] [llvm/llvm-project] 39913a: [SLP][REVEC] Make reorderTopToBottom support Shuff...

[Han-Kuan Chen via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 39913ae095dc9fd25465e70297ce900c300c80a5
      https://github.com/llvm/llvm-project/commit/39913ae095dc9fd25465e70297ce900c300c80a5
  Author: Han-Kuan Chen <hankuan.chen at sifive.com>
  Date:   2024-11-23 (Sat, 23 Nov 2024)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
    M llvm/test/Transforms/SLPVectorizer/revec.ll

  Log Message:
  -----------
  [SLP][REVEC] Make reorderTopToBottom support ShuffleVectorInst. (#117310)

We don't want reorderTopToBottom to reorder ShuffleVectorInst (because
ShuffleVectorInst currently supports only a limited set of patterns).
Either we make ShuffleVectorInst support more patterns, or we let
ReorderIndices reorder the result of the vectorization of
ShuffleVectorInst. We choose the latter solution.



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