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Improve performance of .debug_names lookups when DW_IDX_parent attributes are used #91808

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Improve performance of .debug_names lookups when DW_IDX_parent attributes are used #91808

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Improve performance of .debug_names lookups when DW_IDX_parent attrib…
clayborg May 10, 2024
8faad14
Fix comment as suggested.
clayborg May 29, 2024
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4 changes: 4 additions & 0 deletions lldb/source/Plugins/SymbolFile/DWARF/DebugNamesDWARFIndex.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -83,6 +83,10 @@ bool DebugNamesDWARFIndex::ProcessEntry(
DWARFDIE die = dwarf.GetDIE(*ref);
if (!die)
return true;
// Clang erroneously emits index entries for declaration DIEs in case when the
// definition is in a type unit (llvm.org/pr77696). Weed those out.
if (die.GetAttributeValueAsUnsigned(DW_AT_declaration, 0))
return true;
return callback(die);
}

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