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

[via llvm-commits]

DianQK wrote:

> > I think that this isn't something SimplifyCFG should be handling.
> 
> This is completely opposite to what I thought. Can you tell me the reasoning behind your idea?

Because hoisting instructions won't change the CFG, if all instructions can be hoisted, we can transform it into two passes.

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