cerc-io/solidity
10
0
Fork 0
mirror of https://github.com/ethereum/solidity synced 2023-10-03 13:03:40 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Report infinite gas for calls.

Browse Source
This commit is contained in:
chriseth 2016-11-14 16:02:57 +01:00
parent 68e7763387
commit c2c39239d6
1 changed files with 19 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

34
libevmasm/GasMeter.cpp
View File

@ -128,24 +128,28 @@ GasMeter::GasConsumption GasMeter::estimateMax(AssemblyItem const& _item)
case Instruction::CALLCODE:
case Instruction::DELEGATECALL:
{
gas = GasCosts::callGas;
if (u256 const* value = classes.knownConstant(m_state->relativeStackElement(0)))
gas += (*value);
else
gas = GasConsumption::infinite();
if (_item.instruction() == Instruction::CALL)
gas += GasCosts::callNewAccountGas; // We very rarely know whether the address exists.
int valueSize = _item.instruction() == Instruction::DELEGATECALL ? 0 : 1;
if (!classes.knownZero(m_state->relativeStackElement(-1 - valueSize)))
gas += GasCosts::callValueTransferGas;
gas += memoryGas(-2 - valueSize, -3 - valueSize);
gas += memoryGas(-4 - valueSize, -5 - valueSize);
// We assume that we do not know the target contract and thus, the consumption is infinite.
gas = GasConsumption::infinite();
// gas = GasCosts::callGas;
// if (u256 const* value = classes.knownConstant(m_state->relativeStackElement(0)))
// gas += (*value);
// else
// gas = GasConsumption::infinite();
// if (_item.instruction() == Instruction::CALL)
// gas += GasCosts::callNewAccountGas; // We very rarely know whether the address exists.
// int valueSize = _item.instruction() == Instruction::DELEGATECALL ? 0 : 1;
// if (!classes.knownZero(m_state->relativeStackElement(-1 - valueSize)))
// gas += GasCosts::callValueTransferGas;
// gas += memoryGas(-2 - valueSize, -3 - valueSize);
// gas += memoryGas(-4 - valueSize, -5 - valueSize);
break;
}
case Instruction::CREATE:
gas = GasCosts::createGas;
gas += memoryGas(-1, -2);
break;
// We assume that we do not know the target contract and thus, the consumption is infinite.
// gas = GasConsumption::infinite();
// gas = GasCosts::createGas;
// gas += memoryGas(-1, -2);
// break;
case Instruction::EXP:
gas = GasCosts::expGas;
if (u256 const* value = classes.knownConstant(m_state->relativeStackElement(-1)))