[llvm] [X86, SimplifyCFG] Support hoisting load/store with conditional faulting (Part II) (PR #108812)

[Simon Pilgrim via llvm-commits]

RKSimon wrote:

It seems to be easier to create the masked/conditional store pattern from the store+select pattern rather than the other way around.

https://github.com/llvm/llvm-project/pull/108812