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Make verbatim compatible with KnownState.

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This commit is contained in:
chriseth
2021-04-26 19:56:44 +02:00
parent e2d8005737
commit cb1af8b88a
11 changed files with 48 additions and 19 deletions
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libevmasm/KnownState.cpp
+18
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@@ -100,6 +100,24 @@ KnownState::StoreOperation KnownState::feedItem(AssemblyItem const& _item, bool
feedItem(AssemblyItem(Instruction::POP), _copyItem);
return feedItem(AssemblyItem(Instruction::POP), _copyItem);
}
else if (_item.type() == VerbatimBytecode)
{
m_sequenceNumber += 2;
resetMemory();
resetKnownKeccak256Hashes();
resetStorage();
// Consume all arguments and place unknown return values on the stack.
m_stackElements.erase(
m_stackElements.upper_bound(m_stackHeight - static_cast<int>(_item.arguments())),
m_stackElements.end()
);
m_stackHeight += static_cast<int>(_item.deposit());
for (size_t i = 0; i < _item.returnValues(); ++i)
setStackElement(
m_stackHeight - static_cast<int>(i),
m_expressionClasses->newClass(_item.location())
);
}
else if (_item.type() != Operation)
{
assertThrow(_item.deposit() == 1, InvalidDeposit, "");