[llvm] [X86][SimplifyCFG] Support hoisting load/store with conditional faulting (PR #96878)

[Shengchen Kan via llvm-commits]

KanRobert wrote:

> > So you're working on exposing the potential issues for mask.load/store in other middle-end passes?
> 
> No. It seems a bug in SimplifyCFG.
> 
> > And prefer the 3rd solution?
> 
> I prefer the second one.

Is it a bug in this transform or in other transforms?

https://github.com/llvm/llvm-project/pull/96878