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Optimize number of moves.

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This commit is contained in:
chriseth 2018-04-05 10:22:55 +02:00
parent 12b47a6e0b
commit ca9fa053b7
1 changed files with 14 additions and 8 deletions
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18
libjulia/optimiser/FullInliner.cpp
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@ -92,21 +92,27 @@ void InlineModifier::operator()(ForLoop& _loop)
void InlineModifier::operator()(Block& _block) void InlineModifier::operator()(Block& _block)
{ {
// TODO: optimize the number of moves here. // This is only used if needed to minimize the number of move operations.
vector<Statement> modifiedStatements;
for (size_t i = 0; i < _block.statements.size(); ++i) for (size_t i = 0; i < _block.statements.size(); ++i)
{ {
visit(_block.statements.at(i)); visit(_block.statements.at(i));
if (size_t length = m_statementsToPrefix.size()) if (!m_statementsToPrefix.empty())
{ {
_block.statements.insert( if (modifiedStatements.empty())
std::move(
_block.statements.begin(),
_block.statements.begin() + i, _block.statements.begin() + i,
std::make_move_iterator(m_statementsToPrefix.begin()), back_inserter(modifiedStatements)
std::make_move_iterator(m_statementsToPrefix.end())
); );
i += length; modifiedStatements += std::move(m_statementsToPrefix);
m_statementsToPrefix.clear(); m_statementsToPrefix.clear();
} }
if (!modifiedStatements.empty())
modifiedStatements.emplace_back(std::move(_block.statements[i]));
} }
if (!modifiedStatements.empty())
_block.statements = std::move(modifiedStatements);
} }
void InlineModifier::visit(Expression& _expression) void InlineModifier::visit(Expression& _expression)