[llvm] [SimplifyCFG] Use hash map to continue hoisting the common instructions (PR #78615)

[Yingwei Zheng via llvm-commits]

================
@@ -1810,7 +1935,6 @@ bool SimplifyCFGOpt::hoistSuccIdenticalTerminatorToSwitchOrIf(
         Value *BB2V = PN.getIncomingValueForBlock(OtherSuccTI->getParent());
         if (BB1V == BB2V)
           continue;
-
----------------
dtcxzyw wrote:

Please drop the change.

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