[llvm] 3ce3872 - [Support] Avoid repeated hash lookups (NFC) (#129000)

[via llvm-commits]

Author: Kazu Hirata
Date: 2025-02-27T01:46:37-08:00
New Revision: 3ce387231a3e9d9642b74152b9d42b364d565352

URL: https://github.com/llvm/llvm-project/commit/3ce387231a3e9d9642b74152b9d42b364d565352
DIFF: https://github.com/llvm/llvm-project/commit/3ce387231a3e9d9642b74152b9d42b364d565352.diff

LOG: [Support] Avoid repeated hash lookups (NFC) (#129000)

Added: 
    

Modified: 
    llvm/lib/Support/DAGDeltaAlgorithm.cpp

Removed: 
    


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diff  --git a/llvm/lib/Support/DAGDeltaAlgorithm.cpp b/llvm/lib/Support/DAGDeltaAlgorithm.cpp
index 8b23b05913291..48302b8cb0621 100644
--- a/llvm/lib/Support/DAGDeltaAlgorithm.cpp
+++ b/llvm/lib/Support/DAGDeltaAlgorithm.cpp
@@ -201,8 +201,9 @@ DAGDeltaAlgorithmImpl::DAGDeltaAlgorithmImpl(
     std::set<change_ty> &ChangeSuccs = SuccClosure[Change];
     for (pred_iterator_ty it = pred_begin(Change),
            ie = pred_end(Change); it != ie; ++it) {
-      SuccClosure[*it].insert(Change);
-      SuccClosure[*it].insert(ChangeSuccs.begin(), ChangeSuccs.end());
+      auto &SC = SuccClosure[*it];
+      SC.insert(Change);
+      SC.insert(ChangeSuccs.begin(), ChangeSuccs.end());
       Worklist.push_back(*it);
     }
   }