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[WebAssembly] Avoid repeated hash lookups (NFC) #127960

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Merged
merged 1 commit into from
Feb 20, 2025
Merged

[WebAssembly] Avoid repeated hash lookups (NFC) #127960

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18 changes: 9 additions & 9 deletions llvm/lib/Target/WebAssembly/WebAssemblySortRegion.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -28,17 +28,17 @@ const SortRegion *SortRegionInfo::getRegionFor(const MachineBasicBlock *MBB) {
// WE->contains(ML->getHeader()), but not ML->contains(WE->getHeader()).
if ((ML && !WE) || (ML && WE && WE->contains(ML->getHeader()))) {
// If the smallest region containing MBB is a loop
if (LoopMap.count(ML))
return LoopMap[ML].get();
LoopMap[ML] = std::make_unique<ConcreteSortRegion<MachineLoop>>(ML);
return LoopMap[ML].get();
auto [It, Inserted] = LoopMap.try_emplace(ML);
if (Inserted)
It->second = std::make_unique<ConcreteSortRegion<MachineLoop>>(ML);
return It->second.get();
} else {
// If the smallest region containing MBB is an exception
if (ExceptionMap.count(WE))
return ExceptionMap[WE].get();
ExceptionMap[WE] =
std::make_unique<ConcreteSortRegion<WebAssemblyException>>(WE);
return ExceptionMap[WE].get();
auto [It, Inserted] = ExceptionMap.try_emplace(WE);
if (Inserted)
It->second =
std::make_unique<ConcreteSortRegion<WebAssemblyException>>(WE);
return It->second.get();
}
}

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