[all-commits] [llvm/llvm-project] 9007d0: [UnifyLoopExits] Use poison instead of undef as pl...

[Nuno Lopes via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 9007d0e0b6456424d81c89cf78ca9a3b01a61fed
      https://github.com/llvm/llvm-project/commit/9007d0e0b6456424d81c89cf78ca9a3b01a61fed
  Author: Nuno Lopes <nuno.lopes at tecnico.ulisboa.pt>
  Date:   2023-07-22 (Sat, 22 Jul 2023)

  Changed paths:
    M llvm/lib/Transforms/Utils/UnifyLoopExits.cpp
    M llvm/test/Transforms/UnifyLoopExits/restore-ssa.ll

  Log Message:
  -----------
  [UnifyLoopExits] Use poison instead of undef as placeholder [NFC]
This pass creates phi nodes where only one of the incoming values is used.
The remaining ones can be poison.