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

[Shengchen Kan via llvm-commits]

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@@ -728,6 +726,34 @@ if.true:
   ret i32 %res
 }
 
+define void @diamondCFG(i32 %a, ptr %c, ptr %d) {
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KanRobert wrote:

Probably remove this? This function tests the same thing as `single_predecessor`

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