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-rw-r--r--libevmasm/GasMeter.cpp10
1 files changed, 6 insertions, 4 deletions
diff --git a/libevmasm/GasMeter.cpp b/libevmasm/GasMeter.cpp
index 3554f809..d98b3efa 100644
--- a/libevmasm/GasMeter.cpp
+++ b/libevmasm/GasMeter.cpp
@@ -101,8 +101,8 @@ GasMeter::GasConsumption GasMeter::estimateMax(AssemblyItem const& _item, bool _
break;
case Instruction::KECCAK256:
gas = GasCosts::keccak256Gas;
- gas += wordGas(GasCosts::keccak256WordGas, m_state->relativeStackElement(-1));
gas += memoryGas(0, -1);
+ gas += wordGas(GasCosts::keccak256WordGas, m_state->relativeStackElement(-1));
break;
case Instruction::CALLDATACOPY:
case Instruction::CODECOPY:
@@ -114,6 +114,9 @@ GasMeter::GasConsumption GasMeter::estimateMax(AssemblyItem const& _item, bool _
case Instruction::EXTCODESIZE:
gas = GasCosts::extCodeGas(m_evmVersion);
break;
+ case Instruction::EXTCODEHASH:
+ gas = GasCosts::balanceGas(m_evmVersion);
+ break;
case Instruction::EXTCODECOPY:
gas = GasCosts::extCodeGas(m_evmVersion);
gas += memoryGas(-1, -3);
@@ -125,8 +128,7 @@ GasMeter::GasConsumption GasMeter::estimateMax(AssemblyItem const& _item, bool _
case Instruction::LOG3:
case Instruction::LOG4:
{
- unsigned n = unsigned(_item.instruction()) - unsigned(Instruction::LOG0);
- gas = GasCosts::logGas + GasCosts::logTopicGas * n;
+ gas = GasCosts::logGas + GasCosts::logTopicGas * getLogNumber(_item.instruction());
gas += memoryGas(0, -1);
if (u256 const* value = classes.knownConstant(m_state->relativeStackElement(-1)))
gas += GasCosts::logDataGas * (*value);
@@ -215,7 +217,7 @@ GasMeter::GasConsumption GasMeter::memoryGas(ExpressionClasses::Id _position)
if (!value)
return GasConsumption::infinite();
if (*value < m_largestMemoryAccess)
- return GasConsumption(u256(0));
+ return GasConsumption(0);
u256 previous = m_largestMemoryAccess;
m_largestMemoryAccess = *value;
auto memGas = [=](u256 const& pos) -> u256