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

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Mar 15, 2025
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[Analysis] Avoid repeated hash lookups (NFC) #131421

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5 changes: 3 additions & 2 deletions llvm/lib/Analysis/LoopAccessAnalysis.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -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
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