[all-commits] [llvm/llvm-project] 9a1287: DAG: Use poison instead of undef in SimplifyDemand...

[Matt Arsenault via All-commits]

  Branch: refs/heads/users/arsenm/dag/use-poison-simplify-demanded
  Home:   https://github.com/llvm/llvm-project
  Commit: 9a1287ff488ff29a28f2cedc93723557c155c63c
      https://github.com/llvm/llvm-project/commit/9a1287ff488ff29a28f2cedc93723557c155c63c
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2026-07-06 (Mon, 06 Jul 2026)

  Changed paths:
    M llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
    M llvm/test/CodeGen/AArch64/urem-vector-lkk.ll
    M llvm/test/CodeGen/X86/combine-sdiv.ll
    M llvm/test/CodeGen/X86/combine-udiv.ll

  Log Message:
  -----------
  DAG: Use poison instead of undef in SimplifyDemandedVectorElts

I left getKnownUndefForVectorBinop since I'm not sure
if it's correct to just replace with poison.



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