[llvm] [SimplifyCFG] Avoid threading for loop headers (PR #151142)

[Arne Stenkrona via llvm-commits]

ArneStenkrona2 wrote:

@nikic I didn't see a specific secction for SimplifyCFG in Maintainers.md. Perhaps either you, or someone you think is appropriate, can take a look at this.
I've opened a corresponding issue as well here https://github.com/llvm/llvm-project/issues/151144
Thanks :) 

https://github.com/llvm/llvm-project/pull/151142