[all-commits] [llvm/llvm-project] 2a2b42: [Sink] Fix bugs of sinking unreachable BB from phi...

[XChy via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 2a2b426f13dfd33c7495da1c54ab9d1a8e625d87
      https://github.com/llvm/llvm-project/commit/2a2b426f13dfd33c7495da1c54ab9d1a8e625d87
  Author: XChy <xxs_chy at outlook.com>
  Date:   2023-10-09 (Mon, 09 Oct 2023)

  Changed paths:
    M llvm/lib/Transforms/Scalar/Sink.cpp
    M llvm/test/Transforms/Sink/dead-user.ll

  Log Message:
  -----------
  [Sink] Fix bugs of sinking unreachable BB from phi (#68576)

Resolve #68529.
Sink pass doesn't consider whether Basicblock from phi is unreachable.
This patch moves unreachability check after checking phi.