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Register functions earlier.

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This commit is contained in:
chriseth 2021-11-04 13:38:21 +01:00
parent 99aa18c4f3
commit 929ed094ce
2 changed files with 22 additions and 11 deletions
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32
libyul/backends/evm/ControlFlowGraphBuilder.cpp
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@ -239,6 +239,9 @@ void ControlFlowGraphBuilder::operator()(ExpressionStatement const& _exprStmt)
void ControlFlowGraphBuilder::operator()(Block const& _block) void ControlFlowGraphBuilder::operator()(Block const& _block)
{ {
ScopedSaveAndRestore saveScope(m_scope, m_info.scopes.at(&_block).get()); ScopedSaveAndRestore saveScope(m_scope, m_info.scopes.at(&_block).get());
for (auto const& statement: _block.statements)
if (auto const* function = get_if<FunctionDefinition>(&statement))
registerFunction(*function);
for (auto const& statement: _block.statements) for (auto const& statement: _block.statements)
std::visit(*this, statement); std::visit(*this, statement);
} }
@ -386,11 +389,26 @@ void ControlFlowGraphBuilder::operator()(FunctionDefinition const& _function)
Scope::Function& function = std::get<Scope::Function>(m_scope->identifiers.at(_function.name)); Scope::Function& function = std::get<Scope::Function>(m_scope->identifiers.at(_function.name));
m_graph.functions.emplace_back(&function); m_graph.functions.emplace_back(&function);
CFG::FunctionInfo& functionInfo = m_graph.functionInfo.at(&function);
ControlFlowGraphBuilder builder{m_graph, m_info, m_dialect};
builder.m_currentFunction = &functionInfo;
builder.m_currentBlock = functionInfo.entry;
builder(_function.body);
builder.m_currentBlock->exit = CFG::BasicBlock::FunctionReturn{debugDataOf(_function), &functionInfo};
}
void ControlFlowGraphBuilder::registerFunction(FunctionDefinition const& _function)
{
yulAssert(m_scope, "");
yulAssert(m_scope->identifiers.count(_function.name), "");
Scope::Function& function = std::get<Scope::Function>(m_scope->identifiers.at(_function.name));
yulAssert(m_info.scopes.at(&_function.body), ""); yulAssert(m_info.scopes.at(&_function.body), "");
Scope* virtualFunctionScope = m_info.scopes.at(m_info.virtualBlocks.at(&_function).get()).get(); Scope* virtualFunctionScope = m_info.scopes.at(m_info.virtualBlocks.at(&_function).get()).get();
yulAssert(virtualFunctionScope, ""); yulAssert(virtualFunctionScope, "");
auto&& [it, inserted] = m_graph.functionInfo.emplace(std::make_pair(&function, CFG::FunctionInfo{ bool inserted = m_graph.functionInfo.emplace(std::make_pair(&function, CFG::FunctionInfo{
_function.debugData, _function.debugData,
function, function,
&m_graph.makeBlock(debugDataOf(_function.body)), &m_graph.makeBlock(debugDataOf(_function.body)),
@ -406,18 +424,10 @@ void ControlFlowGraphBuilder::operator()(FunctionDefinition const& _function)
_retVar.debugData _retVar.debugData
}; };
}) | ranges::to<vector> }) | ranges::to<vector>
})); })).second;
yulAssert(inserted, ""); yulAssert(inserted);
CFG::FunctionInfo& functionInfo = it->second;
ControlFlowGraphBuilder builder{m_graph, m_info, m_dialect};
builder.m_currentFunction = &functionInfo;
builder.m_currentBlock = functionInfo.entry;
builder(_function.body);
builder.m_currentBlock->exit = CFG::BasicBlock::FunctionReturn{debugDataOf(_function), &functionInfo};
} }
Stack const& ControlFlowGraphBuilder::visitFunctionCall(FunctionCall const& _call) Stack const& ControlFlowGraphBuilder::visitFunctionCall(FunctionCall const& _call)
{ {
yulAssert(m_scope, ""); yulAssert(m_scope, "");

1
libyul/backends/evm/ControlFlowGraphBuilder.h
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@ -57,6 +57,7 @@ private:
AsmAnalysisInfo const& _analysisInfo, AsmAnalysisInfo const& _analysisInfo,
Dialect const& _dialect Dialect const& _dialect
); );
void registerFunction(FunctionDefinition const& _function);
Stack const& visitFunctionCall(FunctionCall const&); Stack const& visitFunctionCall(FunctionCall const&);
Stack visitAssignmentRightHandSide(Expression const& _expression, size_t _expectedSlotCount); Stack visitAssignmentRightHandSide(Expression const& _expression, size_t _expectedSlotCount);