[all-commits] [llvm/llvm-project] 35215b: [SLP]Do not to try to revectorize previously vecto...

[Alexey Bataev via All-commits]

  Branch: refs/heads/release/21.x
  Home:   https://github.com/llvm/llvm-project
  Commit: 35215b6412b41a81977a88a684c910dc8446d3c7
      https://github.com/llvm/llvm-project/commit/35215b6412b41a81977a88a684c910dc8446d3c7
  Author: Alexey Bataev <a.bataev at outlook.com>
  Date:   2025-09-03 (Wed, 03 Sep 2025)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
    A llvm/test/Transforms/SLPVectorizer/X86/revectorize-phis.ll

  Log Message:
  -----------
  [SLP]Do not to try to revectorize previously vectorized phis in loops

No need to try to revectorize previously vectorized phis in loops, it leads to
a compile time blow-up.

Fixes #155998

(cherry picked from commit 7730ebce8e8fa84db4da04a7d8fe1977ccbf28ff)



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