[all-commits] [llvm/llvm-project] 2d98d7: [SLP]Fix the cost model for extracts combined with...

[Alexey Bataev via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 2d98d763a8e627b2d1a18a9cdd1c62a4b58be3aa
      https://github.com/llvm/llvm-project/commit/2d98d763a8e627b2d1a18a9cdd1c62a4b58be3aa
  Author: Alexey Bataev <5361294+alexey-bataev at users.noreply.github.com>
  Date:   2024-03-01 (Fri, 01 Mar 2024)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
    M llvm/test/Transforms/SLPVectorizer/X86/crash_clear_undefs.ll
    M llvm/test/Transforms/SLPVectorizer/X86/multi-nodes-to-shuffle.ll

  Log Message:
  -----------
  [SLP]Fix the cost model for extracts combined with later shuffle.

If the buildvector node contains extract, which later should be combined
with some other nodes by shuffling, need to estimate the cost of this
shuffle before building the mask after shuffle.

Reviewers: RKSimon

Reviewed By: RKSimon

Pull Request: https://github.com/llvm/llvm-project/pull/83442



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