[all-commits] [llvm/llvm-project] c3677e: [VectorCombine] Don't transform single shuffles in...

[David Green via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: c3677e45222a9461eed0224b99bd8ea19bc52bf6
      https://github.com/llvm/llvm-project/commit/c3677e45222a9461eed0224b99bd8ea19bc52bf6
  Author: David Green <david.green at arm.com>
  Date:   2024-05-18 (Sat, 18 May 2024)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/VectorCombine.cpp
    M llvm/test/Transforms/VectorCombine/X86/select-shuffle.ll

  Log Message:
  -----------
  [VectorCombine] Don't transform single shuffles in shuffleToIdentity

This will help in later patches where the checks for operands being
instructions is removed, and might help not remove unnecessary poison lanes.



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