[llvm] 17aac7c - [Analysis] Avoid repeated hash lookups (NFC) (#130236)

[via llvm-commits]

Author: Kazu Hirata
Date: 2025-03-07T00:59:10-08:00
New Revision: 17aac7ccf92e606fcf8c69ee11cdcf16ca2724b8

URL: https://github.com/llvm/llvm-project/commit/17aac7ccf92e606fcf8c69ee11cdcf16ca2724b8
DIFF: https://github.com/llvm/llvm-project/commit/17aac7ccf92e606fcf8c69ee11cdcf16ca2724b8.diff

LOG: [Analysis] Avoid repeated hash lookups (NFC) (#130236)

Added: 
    

Modified: 
    llvm/include/llvm/Analysis/BlockFrequencyInfoImpl.h

Removed: 
    


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diff  --git a/llvm/include/llvm/Analysis/BlockFrequencyInfoImpl.h b/llvm/include/llvm/Analysis/BlockFrequencyInfoImpl.h
index 9509e5234840f..66ea5ecbc4bfb 100644
--- a/llvm/include/llvm/Analysis/BlockFrequencyInfoImpl.h
+++ b/llvm/include/llvm/Analysis/BlockFrequencyInfoImpl.h
@@ -1571,7 +1571,8 @@ void BlockFrequencyInfoImpl<BT>::initTransitionProbabilities(
     SmallPtrSet<const BlockT *, 2> UniqueSuccs;
     for (const auto SI : children<const BlockT *>(BB)) {
       // Ignore cold blocks
-      if (!BlockIndex.contains(SI))
+      auto BlockIndexIt = BlockIndex.find(SI);
+      if (BlockIndexIt == BlockIndex.end())
         continue;
       // Ignore parallel edges between BB and SI blocks
       if (!UniqueSuccs.insert(SI).second)
@@ -1583,7 +1584,7 @@ void BlockFrequencyInfoImpl<BT>::initTransitionProbabilities(
 
       auto EdgeProb =
           Scaled64::getFraction(EP.getNumerator(), EP.getDenominator());
-      size_t Dst = BlockIndex.find(SI)->second;
+      size_t Dst = BlockIndexIt->second;
       Succs[Src].push_back(std::make_pair(Dst, EdgeProb));
       SumProb[Src] += EdgeProb;
     }