[llvm] [DFAJumpThreading] Preserve BFI and BPI during unfolding selects (PR #162262)

[Nikita Popov via llvm-commits]

https://github.com/nikic commented:

Are BFI/BPI expected to be available at the pipeline position where DFAJumpThreading runs?

https://github.com/llvm/llvm-project/pull/162262