[llvm] [InstCombine] Fold zext/sext i1 store using dominating branch condition (PR #201195)

[Aayush Shrivastava via llvm-commits]

iamaayushrivastava wrote:

Hi @nikic, @arsenm and @dtcxzyw, just a gentle reminder on this PR whenever you get a chance. I'd appreciate your review when your schedule permits. Thanks!

https://github.com/llvm/llvm-project/pull/201195