[llvm] [MachineLoopInfo] Fix getLoopID to handle multi latches. (PR #106195)

[Phoebe Wang via llvm-commits]

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@@ -1183,6 +1183,12 @@ void CodeGenPrepare::eliminateMostlyEmptyBlock(BasicBlock *BB) {
     }
   }
 
+  // Reserve loop Metadata.
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phoebewang wrote:

Reserve -> Preserve

https://github.com/llvm/llvm-project/pull/106195