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[DWARF] Avoid repeated hash lookups (NFC) #125633

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Merged
merged 1 commit into from
Feb 4, 2025
Merged

[DWARF] Avoid repeated hash lookups (NFC) #125633

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11 changes: 5 additions & 6 deletions llvm/lib/DebugInfo/DWARF/DWARFVerifier.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -967,21 +967,20 @@ void DWARFVerifier::verifyDebugLineStmtOffsets() {
// here because we validate this in the .debug_info verifier.
continue;
}
auto Iter = StmtListToDie.find(LineTableOffset);
if (Iter != StmtListToDie.end()) {
auto [Iter, Inserted] = StmtListToDie.try_emplace(LineTableOffset, Die);
if (!Inserted) {
++NumDebugLineErrors;
const auto &OldDie = Iter->second;
ErrorCategory.Report("Identical DW_AT_stmt_list section offset", [&]() {
error() << "two compile unit DIEs, "
<< format("0x%08" PRIx64, Iter->second.getOffset()) << " and "
<< format("0x%08" PRIx64, OldDie.getOffset()) << " and "
<< format("0x%08" PRIx64, Die.getOffset())
<< ", have the same DW_AT_stmt_list section offset:\n";
dump(Iter->second);
dump(OldDie);
dump(Die) << '\n';
});
// Already verified this line table before, no need to do it again.
continue;
}
StmtListToDie[LineTableOffset] = Die;
}
}

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