[llvm] 0320512 - [Analysis] Avoid repeated hash lookups (NFC) (#131421)

[via llvm-commits]

Author: Kazu Hirata
Date: 2025-03-15T09:11:34-07:00
New Revision: 03205121d264acd0661b57a14dcf323343daa3ad

URL: https://github.com/llvm/llvm-project/commit/03205121d264acd0661b57a14dcf323343daa3ad
DIFF: https://github.com/llvm/llvm-project/commit/03205121d264acd0661b57a14dcf323343daa3ad.diff

LOG: [Analysis] Avoid repeated hash lookups (NFC) (#131421)

Added: 
    

Modified: 
    llvm/lib/Analysis/LoopAccessAnalysis.cpp

Removed: 
    


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diff  --git a/llvm/lib/Analysis/LoopAccessAnalysis.cpp b/llvm/lib/Analysis/LoopAccessAnalysis.cpp
index 38ee82b77a946..57a76bc7a81e5 100644
--- a/llvm/lib/Analysis/LoopAccessAnalysis.cpp
+++ b/llvm/lib/Analysis/LoopAccessAnalysis.cpp
@@ -2287,8 +2287,9 @@ bool MemoryDepChecker::areDepsSafe(const DepCandidates &AccessSets,
           (AIIsWrite ? AI : std::next(AI));
       while (OI != AE) {
         // Check every accessing instruction pair in program order.
-        for (std::vector<unsigned>::iterator I1 = Accesses[*AI].begin(),
-             I1E = Accesses[*AI].end(); I1 != I1E; ++I1)
+        auto &Acc = Accesses[*AI];
+        for (std::vector<unsigned>::iterator I1 = Acc.begin(), I1E = Acc.end();
+             I1 != I1E; ++I1)
           // Scan all accesses of another equivalence class, but only the next
           // accesses of the same equivalent class.
           for (std::vector<unsigned>::iterator