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[SelectionDAG] Avoid repeated hash lookups (NFC) #128999

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Merged
kazutakahirata merged 2 commits into from
Feb 27, 2025
Merged

[SelectionDAG] Avoid repeated hash lookups (NFC) #128999

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[SelectionDAG] Avoid repeated hash lookups (NFC)
kazutakahirata Feb 26, 2025
dccb94f
Address a comment.
kazutakahirata Feb 27, 2025
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5 changes: 3 additions & 2 deletions llvm/lib/CodeGen/SelectionDAG/FunctionLoweringInfo.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -343,9 +343,10 @@ void FunctionLoweringInfo::set(const Function &fn, MachineFunction &mf,
for (auto &KV : EHInfo.UnwindDestToSrcs) {
const auto *Dest = cast<const BasicBlock *>(KV.first);
MachineBasicBlock *DestMBB = getMBB(Dest);
UnwindDestToSrcs[DestMBB] = SmallPtrSet<BBOrMBB, 4>();
auto &Srcs = UnwindDestToSrcs[DestMBB];
Srcs = SmallPtrSet<BBOrMBB, 4>();
for (const auto P : KV.second)
UnwindDestToSrcs[DestMBB].insert(getMBB(cast<const BasicBlock *>(P)));
Srcs.insert(getMBB(cast<const BasicBlock *>(P)));
}
EHInfo.UnwindDestToSrcs = std::move(UnwindDestToSrcs);
}
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