[llvm] AMDGPU/GlobalISelDivergenceLowering: select divergent i1 phis (PR #78482)

[Jan Patrick Lehr via llvm-commits]

jplehr wrote:

This results in a stack trace in AMDGPU OpenMP Offload bots.
Example: https://lab.llvm.org/staging/#/builders/185/builds/743 

https://github.com/llvm/llvm-project/pull/78482