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Remove redundant symbol lookups in IRExecutionUnit::FindInSymbols #102835

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merged 1 commit into from
Oct 7, 2024
Merged

Remove redundant symbol lookups in IRExecutionUnit::FindInSymbols #102835

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29 changes: 23 additions & 6 deletions lldb/source/Expression/IRExecutionUnit.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -785,13 +785,22 @@ IRExecutionUnit::FindInSymbols(const std::vector<ConstString> &names,
return LLDB_INVALID_ADDRESS;
}

ModuleList non_local_images = target->GetImages();
// We'll process module_sp separately, before the other modules.
non_local_images.Remove(sc.module_sp);

LoadAddressResolver resolver(target, symbol_was_missing_weak);

ModuleFunctionSearchOptions function_options;
function_options.include_symbols = true;
function_options.include_inlines = false;

for (const ConstString &name : names) {
// The lookup order here is as follows:
// 1) Functions in `sc.module_sp`
// 2) Functions in the other modules
// 3) Symbols in `sc.module_sp`
// 4) Symbols in the other modules
if (sc.module_sp) {
SymbolContextList sc_list;
sc.module_sp->FindFunctions(name, CompilerDeclContext(),
Expand All @@ -801,18 +810,26 @@ IRExecutionUnit::FindInSymbols(const std::vector<ConstString> &names,
return *load_addr;
}

if (sc.target_sp) {
{
SymbolContextList sc_list;
non_local_images.FindFunctions(name, lldb::eFunctionNameTypeFull,
function_options, sc_list);
if (auto load_addr = resolver.Resolve(sc_list))
return *load_addr;
}

if (sc.module_sp) {
SymbolContextList sc_list;
sc.target_sp->GetImages().FindFunctions(name, lldb::eFunctionNameTypeFull,
function_options, sc_list);
sc.module_sp->FindSymbolsWithNameAndType(name, lldb::eSymbolTypeAny,
sc_list);
if (auto load_addr = resolver.Resolve(sc_list))
return *load_addr;
}

if (sc.target_sp) {
{
SymbolContextList sc_list;
sc.target_sp->GetImages().FindSymbolsWithNameAndType(
name, lldb::eSymbolTypeAny, sc_list);
non_local_images.FindSymbolsWithNameAndType(name, lldb::eSymbolTypeAny,
sc_list);
if (auto load_addr = resolver.Resolve(sc_list))
return *load_addr;
}
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