[llvm] [SSAUpdaterBulk] Fix incorrect live-in values for a block. (PR #131762)

[Valery Pykhtin via llvm-commits]

vpykhtin wrote:

Sorry, I cannot find any reviewer from the original https://reviews.llvm.org/D44282. Michael Zolotukhin, davide and dberlin are most wanted :)

https://github.com/llvm/llvm-project/pull/131762