[all-commits] [llvm/llvm-project] 16e2ec: [ValueTracking] Make undef element check more precise

[Nikita Popov via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 16e2ec82ac45701f9c55ab917e30f38dbae6f79a
      https://github.com/llvm/llvm-project/commit/16e2ec82ac45701f9c55ab917e30f38dbae6f79a
  Author: Nikita Popov <npopov at redhat.com>
  Date:   2024-06-06 (Thu, 06 Jun 2024)

  Changed paths:
    M llvm/lib/Analysis/ValueTracking.cpp
    M llvm/test/Transforms/InstCombine/select.ll

  Log Message:
  -----------
  [ValueTracking] Make undef element check more precise

If we're only checking for undef, then also only look for undef
elements in the vector (rather than undef and poison).



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