[all-commits] [llvm/llvm-project] 2475ef: [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: 2475efa91d8b4fa8f1a2d16052cb6d14be7d5dc6
      https://github.com/llvm/llvm-project/commit/2475efa91d8b4fa8f1a2d16052cb6d14be7d5dc6
  Author: Alexey Bataev <a.bataev at outlook.com>
  Date:   2024-05-08 (Wed, 08 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

  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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