[llvm] [GVN] MemorySSA for GVN: eliminate redundant loads via MemorySSA (PR #152859)

[Alina Sbirlea via llvm-commits]

https://github.com/alinas commented:

I might be missing corner cases that could come up in testing, but the overall algorithm looks good to me.

https://github.com/llvm/llvm-project/pull/152859