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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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22
libjulia/optimiser/FullInliner.cpp
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@ -92,21 +92,27 @@ void InlineModifier::operator()(ForLoop& _loop)
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)
{
visit(_block.statements.at(i));
if (size_t length = m_statementsToPrefix.size())
if (!m_statementsToPrefix.empty())
{
_block.statements.insert(
_block.statements.begin() + i,
std::make_move_iterator(m_statementsToPrefix.begin()),
std::make_move_iterator(m_statementsToPrefix.end())
);
i += length;
if (modifiedStatements.empty())
std::move(
_block.statements.begin(),
_block.statements.begin() + i,
back_inserter(modifiedStatements)
);
modifiedStatements += std::move(m_statementsToPrefix);
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)