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PPCSymbolDB: Use emplace() where applicable 

Avoids default constructing an entry in the map that just gets
immediately overwritten. Also gets rid of some redundant map lookups.
This commit is contained in:
Lioncash 2023-05-02 15:41:01 -04:00
parent 0b9b09ad32
commit a14d8003f4
1 changed files with 12 additions and 10 deletions
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22
Source/Core/Core/PowerPC/PPCSymbolDB.cpp
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@ -44,8 +44,8 @@ Common::Symbol* PPCSymbolDB::AddFunction(const Core::CPUThreadGuard& guard, u32
if (!PPCAnalyst::AnalyzeFunction(guard, start_addr, symbol))
return nullptr;
m_functions[start_addr] = std::move(symbol);
Common::Symbol* ptr = &m_functions[start_addr];
const auto insert = m_functions.emplace(start_addr, std::move(symbol));
Common::Symbol* ptr = &insert.first->second;
ptr->type = Common::Symbol::Type::Function;
m_checksum_to_function[ptr->hash].insert(ptr);
return ptr;
@ -71,23 +71,25 @@ void PPCSymbolDB::AddKnownSymbol(const Core::CPUThreadGuard& guard, u32 startAdd
tf.Rename(name);
tf.type = type;
tf.address = startAddr;
if (tf.type == Common::Symbol::Type::Function)
auto& new_symbol = m_functions.emplace(startAddr, std::move(tf)).first->second;
if (new_symbol.type == Common::Symbol::Type::Function)
{
PPCAnalyst::AnalyzeFunction(guard, startAddr, tf, size);
PPCAnalyst::AnalyzeFunction(guard, startAddr, new_symbol, size);
// Do not truncate symbol when a size is expected
if (size != 0 && tf.size != size)
if (size != 0 && new_symbol.size != size)
{
WARN_LOG_FMT(SYMBOLS, "Analysed symbol ({}) size mismatch, {} expected but {} computed",
name, size, tf.size);
tf.size = size;
name, size, new_symbol.size);
new_symbol.size = size;
}
m_checksum_to_function[tf.hash].insert(&m_functions[startAddr]);
m_checksum_to_function[new_symbol.hash].insert(&new_symbol);
}
else
{
tf.size = size;
new_symbol.size = size;
}
m_functions[startAddr] = tf;
}
}