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[LiveDebugValues] Avoid repeated hash lookups (NFC) #110379

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Merged
merged 1 commit into from
Sep 28, 2024
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[LiveDebugValues] Avoid repeated hash lookups (NFC) #110379

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10 changes: 4 additions & 6 deletions llvm/lib/CodeGen/LiveDebugValues/InstrRefBasedImpl.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -3958,12 +3958,10 @@ class LDVSSAUpdater {
/// For a given MBB, create a wrapper block for it. Stores it in the
/// LDVSSAUpdater block map.
LDVSSABlock *getSSALDVBlock(MachineBasicBlock *BB) {
auto it = BlockMap.find(BB);
if (it == BlockMap.end()) {
BlockMap[BB] = new LDVSSABlock(*BB, *this);
it = BlockMap.find(BB);
}
return it->second;
auto [It, Inserted] = BlockMap.try_emplace(BB);
if (Inserted)
It->second = new LDVSSABlock(*BB, *this);
return It->second;
}

/// Find the live-in value number for the given block. Looks up the value at
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