[all-commits] [llvm/llvm-project] 4acfc3: Revert "[JumpThreading] Freeze undef/poison select...

[Arthur Eubanks via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 4acfc32f007528dbe5de20a163ccadfd4668a849
      https://github.com/llvm/llvm-project/commit/4acfc32f007528dbe5de20a163ccadfd4668a849
  Author: Arthur Eubanks <aeubanks at google.com>
  Date:   2026-05-26 (Tue, 26 May 2026)

  Changed paths:
    M llvm/lib/Transforms/Scalar/JumpThreading.cpp
    M llvm/test/Transforms/JumpThreading/branch-debug-info2.ll
    M llvm/test/Transforms/JumpThreading/select.ll
    M llvm/test/Transforms/JumpThreading/stale-loop-info-after-unfold-select.ll

  Log Message:
  -----------
  Revert "[JumpThreading] Freeze undef/poison select condition in unfoldSelectInstr" (#199713)

Reverts llvm/llvm-project#199408

Causes many crashes, e.g.
https://github.com/llvm/llvm-project/pull/199408#issuecomment-4545738591

Fixes https://github.com/llvm/llvm-project/issues/199702



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