[all-commits] [llvm/llvm-project] 58a94b: [SLP]Fix PR91467: Look through scalar cast, when t...

[Alexey Bataev via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 58a94b1d0ad8df85bc6b1edb22c74ffb718ca1a1
      https://github.com/llvm/llvm-project/commit/58a94b1d0ad8df85bc6b1edb22c74ffb718ca1a1
  Author: Alexey Bataev <a.bataev at outlook.com>
  Date:   2024-05-09 (Thu, 09 May 2024)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
    M llvm/test/Transforms/SLPVectorizer/AArch64/gather-with-minbith-user.ll
    M llvm/test/Transforms/SLPVectorizer/AArch64/user-node-not-in-bitwidths.ll
    M llvm/test/Transforms/SLPVectorizer/SystemZ/minbitwidth-root-trunc.ll
    A llvm/test/Transforms/SLPVectorizer/X86/extended-vectorized-gathered-inst.ll

  Log Message:
  -----------
  [SLP]Fix PR91467: Look through scalar cast, when trying to cast to another type.

Need to look through the SExt/ZExt scalars to be gathered, when trying
to reduce their width after minbitwidth analysis to prevent permanent
attempts to revectorize such gathered instructions.



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