[llvm] [SimplifyCFG] Fix hoisting problem in SimplifyCFG (PR #78615)

[Quentin Dian via llvm-commits]

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@@ -1742,15 +1767,6 @@ bool SimplifyCFGOpt::hoistCommonCodeFromSuccessors(BasicBlock *BB,
       continue;
     }
 
-    SmallVector<Instruction *, 8> OtherInsts;
-    if (SameLevelHoist) { 
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DianQK wrote:

I'm just finding that the code here is getting more complicated. Of course, a big part of the problem here is my previous commits :3.
There is a possibility of ambiguity in this change, and I can verify my thoughts in subsequent PRs.

(Sorry, my github notifications are starting to get hard to sift through the important parts.)

https://github.com/llvm/llvm-project/pull/78615